Dr. Wakamatsu studies the biology and treatment of rare bone and soft tissue tumors, including synovial sarcoma, chondrosarcoma, and undifferentiated pleomorphic sarcoma. He employs advanced techniques such as RNA sequencing and organoid modeling to gain insights into these cancers and test new treatment options. His work also encompasses the impact of therapies on survival rates for patients with bone metastases and complications related to kidney disease.
His research often involves creating lab-grown models of tumors, which help to explore how different treatments work. This allows for more personalized approaches to cancer treatment, ultimately aiming to enhance the effectiveness of therapies for patients dealing with aggressive or recurrent cancers.
Key findings
A study on RNA sequencing improved cancer diagnosis for rare tumors, identifying gene fusions in 69% of cases.
Patients with bone metastases treated with bone-modifying agents had a median survival of 21.9 months compared to just 7.8 months for those who did not receive the treatment.
In a case report, pazopanib led to significant tumor shrinkage in a patient with undifferentiated pleomorphic sarcoma, maintaining control for three years.
Using organoids, Dr. Wakamatsu found that certain soft tissue tumors are resistant to standard treatments, emphasizing the need for new therapeutic strategies.
Chondrosarcoma organoids revealed specific genetic alterations that may drive tumor growth, with promising results from the drug vismodegib.
Frequently asked questions
Does Dr. Wakamatsu study rare tumors?
Yes, he focuses on rare bone and soft tissue tumors, improving diagnosis and treatment options for conditions like synovial sarcoma and chondrosarcoma.
What treatments has Dr. Wakamatsu researched?
He has researched targeted therapies like pazopanib and combined treatments involving drugs such as romidepsin and SN38 to improve outcomes for cancer patients.
Is Dr. Wakamatsu's work relevant to kidney disease patients?
Yes, he has conducted significant research on uremic toxins associated with kidney disease, which could lead to better treatment strategies.
How does Dr. Wakamatsu's research help cancer patients?
His work helps identify effective treatments and improves diagnostic techniques, which can lead to better-tailored therapies and enhanced survival rates.
What are organoids, and how are they used in Dr. Wakamatsu's research?
Organoids are lab-grown models of tumors that help researchers study cancer behavior and test new treatments effectively, providing insights into treatment resistance.
Publications in plain English
Targeted RNA sequencing enhances the integrated diagnosis of bone and soft tissue tumors.
2026
Human pathology
Nakamura H, Kukita Y, Wakamatsu T, Nakai S, Tamiya H +7 more
Plain English This study looked at how a specialized RNA sequencing technique can improve the diagnosis of rare bone and soft tissue tumors by analyzing 90 tumor samples. The researchers found that this method identified cancer-related gene fusions in about 69% of cases, which helped confirm the correct diagnosis in many instances, especially where traditional methods struggled. This is important because accurate diagnoses can lead to better treatment choices for patients.
Who this helps: This helps patients with rare tumors and doctors involved in their diagnosis and treatment.
Simultaneous measurements of small-angle static and dynamic light scattering to characterize particle aggregation.
2026
Applied optics
Wakamatsu T, Ue H
Plain English This study developed a new optical device that measures how tiny particles cluster together by analyzing light in different ways. It successfully tracked the aggregation of polystyrene latex particles in real time, showing details like how quickly they group and their structural properties. This technology could help improve monitoring in various industrial processes where particle aggregation is important.
Who this helps: This helps researchers and manufacturers dealing with particle-based materials.
Prognostic nutrition index as a predictive factor for overall survival in trabectedin-treated advanced soft tissue sarcoma.
2025
Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association
Sabe H, Takenaka S, Kakunaga S, Tamiya H, Wakamatsu T +4 more
Plain English This study examined how certain health indicators could predict survival outcomes for patients with advanced soft tissue sarcoma being treated with a drug called trabectedin. Researchers looked at various factors like inflammation and nutritional status in 44 patients and found that those with a higher prognostic nutrition index (PNI of 44 or more) lived much longer (an average of 757 days compared to 232 days for lower PNI) and those with lower C-reactive protein (CRP below 0.3) also had better survival rates (877 days vs. 297 days). Identifying these indicators is important because they can help doctors determine which patients might benefit the most from trabectedin treatment.
Who this helps: Patients with advanced soft tissue sarcoma.
Comparison of clinical outcome between surgical treatment and particle beam therapy for pelvic bone sarcomas: A retrospective multicenter study in Japan.
2025
Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association
Takemori T, Hara H, Kawamoto T, Fukase N, Sawada R +29 more
Plain English This study looked at how effective surgery and particle beam therapy are for treating pelvic bone sarcomas, which are rare tumors. Researchers analyzed 116 patients from 19 centers in Japan and found that after three years, the overall survival rates were 82.9% for surgery and 64.9% for particle beam therapy. While surgery had a higher survival rate, particle beam therapy showed better local control of the tumor for patients with a specific type of sarcoma called chordoma.
Who this helps: This research benefits patients with pelvic bone sarcomas and their doctors by providing insights into treatment options.
Lorlatinib for the Treatment of Inflammatory Myofibroblastic Tumor after Allogeneic Hematopoietic Stem Cell Transplantation.
2025
Internal medicine (Tokyo, Japan)
Yagi T, Kukita Y, Matsuoka H, Wakamatsu T, Tamiya H +6 more
Plain English This study focused on a rare type of tumor called inflammatory myofibroblastic tumor (IMT) that developed in a 56-year-old woman after she received a stem cell transplant. The woman was treated with a drug called lorlatinib, which slightly worked for about two months. Understanding how well lorlatinib works in these cases is important for improving treatment options for similar patients in the future.
Who this helps: Patients with inflammatory myofibroblastic tumors after stem cell transplants.
The HNH endonuclease domain of the giant virus MutS7 specifically binds to branched DNA structures with single-stranded regions.
2025
DNA repair
Yoshioka S, Kurazono H, Ohshita K, Fukui K, Takemura M +4 more
Plain English This study focused on a protein called MutS7 found in giant viruses, specifically looking at how its HNH endonuclease domain interacts with different DNA structures. Researchers discovered that this domain binds strongly to specific branched DNA shapes that include single-stranded regions, particularly favoring a structure known as the displacement-loop, rather than to straight or other branched forms. These findings are important because they suggest that MutS7 may play a role in controlling how viruses replicate their DNA, which could impact our understanding of viral infections.
Who this helps: This helps researchers studying viral behavior and could lead to better strategies for managing viral infections.
Impact of Bone-Modifying Agents on Post-Bone Metastasis Survival Across Cancer Types.
2025
Current oncology (Toronto, Ont.)
Tamiya H, Nishino K, Kato Y, Nakahashi-Kato R, Kosuga-Tsujimoto Y +6 more
Plain English This study looked at how bone-modifying agents (BMA) affect survival after bone metastasis in cancer patients. It found that patients who received BMA had a median survival of 21.9 months, compared to just 7.8 months for those who did not get BMA. This is particularly important for patients with cancers that usually have a poor prognosis, such as gastrointestinal cancers and non-small cell lung cancer without a specific mutation, as it may significantly improve their chances of longer survival.
Who this helps: This benefits cancer patients with bone metastasis, particularly those with gastrointestinal and non-small cell lung cancers.
Establishment of human histiocytic sarcoma organoids dependent on the SHH/YAP pathway.
2025
Human cell
Yoshimura Y, Yoshida K, Matsuoka Y, Sasagawa S, Nagamine N +16 more
Plain English This study focused on histiocytic sarcoma, a rare and aggressive cancer that lacks effective treatments. Researchers created lab-grown models of the cancer, called organoids, and found that two specific inhibitors—vismodegib and verteporfin—showed strong anti-tumor effects. This matters because understanding the cancer's biology and testing targeted therapies can lead to better treatment options for patients.
Who this helps: Patients with histiocytic sarcoma.
Comprehensive Bibliometric Analysis of Uremic Toxin Research.
2025
Toxins
Hardjo M, Wakamatsu T, Watanabe K, Yamazaki S, Yamamoto S
Plain English This study looked at research on uremic toxins, which build up in patients with kidney disease and can cause various health problems. The researchers analyzed 3,302 articles and found that interest in these toxins is increasing, particularly regarding gut bacteria's role. They noted that the most studied uremic toxins are indoxyl sulfate and p-cresyl sulfate, but there are many toxins that haven't been thoroughly researched yet. This is important because understanding these toxins better could lead to improved treatments for kidney disease patients.
Who this helps: Patients with kidney disease.
Chondrosarcoma organoids reveal SHH pathway activation driven by PTCH1 and BCOR alterations.
2025
Scientific reports
Takami H, Yoshida K, Matsuoka Y, Sasagawa S, Nagamine N +13 more
Plain English This study focused on creating lab-grown models of chondrosarcoma, a challenging bone cancer that often resists standard treatments. Researchers successfully developed two models that mimic the tumors taken from patients and found specific genetic changes—mutations in the PTCH1 and BCOR genes—that activate a pathway important for tumor growth. Using a drug called vismodegib, they showed strong cancer-fighting effects in the lab, highlighting a potential new way to treat this difficult-to-manage cancer.
Who this helps: This benefits patients with chondrosarcoma and their doctors by potentially leading to better treatment options.
Development of synovial sarcoma organoids exhibiting ferroptosis resistance despite low malic enzyme 1 expression.
2025
Scientific reports
Wakamatsu T, Yamada Y, Yoshida K, Matsuoka Y, Sasagawa S +12 more
Plain English Researchers studied a type of cancer called synovial sarcoma by creating mini-tumor models, known as organoids, from patients' tumors. They successfully developed these organoids from 3 out of 5 patients and found that, surprisingly, the organoids were resistant to a treatment designed to kill cancer cells, even though they showed low levels of a specific protein typically associated with making cells sensitive to this treatment. This finding helps us understand the complexity of how cancer cells resist treatment and highlights the need for new therapies for synovial sarcoma, a particularly challenging cancer to treat.
Who this helps: This helps patients with synovial sarcoma and their doctors in finding better treatment options.
Local surgery feasibility and safety after carbon ion radiotherapy for primary bone sarcomas.
2024
Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association
Sabe H, Outani H, Imura Y, Takami H, Nakai T +8 more
Plain English This study looked at the safety and feasibility of performing local surgeries on patients with primary bone sarcomas who had previously undergone carbon ion radiotherapy. Out of 42 patients treated with this type of radiotherapy, 8 patients needed 10 surgeries due to issues like skin problems, bone collapse, or tumor regrowth. The results showed that while the surgeries were generally feasible, there were some complications, particularly infection, that need careful management.
Who this helps: This helps patients with primary bone sarcomas and their doctors by providing insights on what to expect after carbon ion radiotherapy.
Nationwide multicenter study on adverse events associated with a patency capsule: Additional survey of appropriate use of patency capsule study.
2024
Journal of gastroenterology and hepatology
Omori T, Ohmiya N, Watanabe K, Hirai F, Nakamura M +18 more
Plain English This research looked at the safety of a device called the PillCam patency capsule (PC), which helps prevent the capsule used for small bowel exams from getting stuck in the intestine. Out of nearly 2,600 patients, 74 experienced problems related to the capsule, making for an overall rate of adverse events of about 2.37%. Most issues were minor, but the study highlighted that patients with Crohn's disease had a higher risk of complications, and less experienced doctors were more likely to cause blockages.
Who this helps: This information is useful for patients undergoing small bowel exams, particularly those with Crohn's disease, as well as doctors performing these procedures.
Effectiveness of calcimimetics on fractures in dialysis patients with secondary hyperparathyroidism: meta-analysis of randomized trials.
2024
Journal of bone and mineral metabolism
Wakamatsu T, Yamamoto S, Matsuo K, Taniguchi M, Hamano T +2 more
Plain English This study looked at how effective a medication called calcimimetics is at preventing fractures in dialysis patients who have a condition known as secondary hyperparathyroidism. The researchers analyzed data from seven studies involving over 6,400 patients and found that those taking calcimimetics had about half the risk of fractures compared to those not on the medication (risk ratio of 0.50). This matters because it shows that calcimimetics can significantly lower the chances of fractures in these vulnerable patients, with only 47 patients needing to be treated to prevent one fracture.
Who this helps: Patients undergoing dialysis with secondary hyperparathyroidism.
A case of pelvicfusion sarcoma treated with carbon ion radiotherapy.
2024
Radiology case reports
Yagi T, Suzuki O, Matsuoka H, Shinyashiki K, Wakamatsu T +7 more
Plain English This study looked at a rare type of cancer called pelvicfusion sarcoma in a middle-aged man, who was treated with a specific therapy called carbon ion radiotherapy. The treatment helped keep the cancer stable for 13 months. This finding is important because it offers a potential new option for patients with advanced cases of this challenging cancer.
Who this helps: This helps patients with locally advanced pelvicfusion sarcoma.
Indoxyl Sulfate-Induced Macrophage Toxicity and Therapeutic Strategies in Uremic Atherosclerosis.
2024
Toxins
Wakamatsu T, Yamamoto S, Yoshida S, Narita I
Plain English This research looked at how a harmful substance called indoxyl sulfate (IS) affects immune cells in patients with kidney disease, which often leads to heart problems. It found that IS contributes to immune cell malfunctions and inflammation, which can worsen heart disease in people with chronic kidney disease (CKD). The study suggests that improving gut health, correcting cell signaling issues, and using better blood purification methods could reduce these harmful effects and ultimately protect heart health.
Who this helps: This helps patients with chronic kidney disease and their doctors.
Improvement of histone deacetylase inhibitor efficacy by SN38 through TWIST1 suppression in synovial sarcoma.
2024
Cancer innovation
Sasagawa S, Kumai J, Wakamatsu T, Yui Y
Plain English This study focused on treating synovial sarcoma, a type of soft tissue cancer that often spreads to other organs and has a poor outlook. Researchers tested how well the drug romidepsin worked on cancer cells grown in different conditions, specifically looking at whether adding another drug, SN38, could improve results. They found that combining SN38 with romidepsin increased cancer cell death in certain cells and overcame resistance issues by reducing a protein called TWIST1, which limits the effectiveness of treatment.
Who this helps: This helps patients with synovial sarcoma by potentially improving their treatment options.
Successful pazopanib treatment of undifferentiated pleomorphic sarcoma with coamplification of,and: A case report.
2024
Molecular and clinical oncology
Matsuoka H, Yoshida KI, Nakai S, Suzuki R, Imura Y +8 more
Plain English This study looked at a 51-year-old man with advanced undifferentiated pleomorphic sarcoma (UPS), a type of aggressive cancer. The patient had a significant and lasting improvement after taking pazopanib, a cancer medication, which caused his tumor to shrink and prevented any new growth for three years. This matters because it suggests that patients with specific genetic changes (coamplification of certain genes) may respond well to pazopanib, offering a potential new treatment pathway for a cancer that currently has few effective options.
Who this helps: This helps patients with undifferentiated pleomorphic sarcoma and their doctors in finding effective treatment options.
Real-world assessment of comprehensive genome profiling impact on clinical outcomes: A single-institution study in Japan.
2024
Cancer medicine
Kunimasa K, Sugimoto N, Yamasaki T, Kukita Y, Fujisawa F +14 more
Plain English This study looked at how comprehensive genome profiling (CGP) affects treatment outcomes for patients with advanced solid tumors in Japan. Out of 1,437 patients, 1,096 had results analyzed, but only 12 (1.1%) were enrolled in clinical trials, and 25 (2.3%) could receive therapy covered by insurance. Overall, the study found that the effectiveness of treatments matched to genetic profiles was not very promising, with patients in clinical trials having a median survival of just 1.58 months and those receiving insurance-covered treatments surviving a median of 3.66 months.
Who this helps: This research benefits patients and their doctors by highlighting the limitations of current genomic testing and the need for more effective trial options.
Efficacy of surgery in the management of multiple recurrences of retroperitoneal dedifferentiated liposarcoma.
2024
World journal of surgical oncology
Yamada Y, Wakamatsu T, Imura Y, Tamiya H, Yagi T +7 more
Plain English This study looked at how effective surgery is for patients with a type of cancer called retroperitoneal dedifferentiated liposarcoma that often comes back after treatment. Out of 118 patients, those who had one or two surgeries saw a big improvement in survival rates, while those who had three surgeries showed no significant benefit. This matters because it suggests that while surgery can help extend life, especially for patients with low-grade tumors, patients should be carefully evaluated for surgery after their second recurrence.
Who this helps: This information benefits patients with retroperitoneal dedifferentiated liposarcoma and their doctors by guiding treatment choices.
Utility of Comprehensive Genomic Profiling Tests for Patients with Incurable Pancreatic Cancer in Clinical Practice.
2023
Cancers
Yamai T, Ikezawa K, Sugimoto N, Urabe M, Kai Y +15 more
Plain English This study examined how useful genetic tests are for patients with incurable pancreatic cancer in Japan. Researchers looked at 115 patients and found that 21.7% had specific genetic mutations that could help guide treatment. Those with these mutations lived longer—an average of 749 days compared to 519 days for others—which highlights the importance of genetic testing in improving patient outcomes.
Who this helps: This benefits patients with pancreatic cancer and their doctors, enabling better treatment decisions.
SETD2 regulates chromatin accessibility and transcription to suppress lung tumorigenesis.
2023
JCI insight
Xie Y, Sahin M, Wakamatsu T, Inoue-Yamauchi A, Zhao W +7 more
Plain English This study looked at the role of a gene called SETD2, which, when mutated, is common in a type of lung cancer called lung adenocarcinoma. Researchers found that losing SETD2 made lung tumors grow faster and led to shorter survival rates in mice; specifically, they showed that this loss increased tumor development in their models and decreased survival rates. Understanding how SETD2 affects cancer growth could lead to new treatments for patients with this mutation.
Who this helps: This helps patients with lung cancer, especially those with SETD2 mutations.
Genetic characterization of a novel organoid from human malignant giant-cell tumor.
2023
Journal of bone oncology
Suzuki R, Wakamatsu T, Yoshida K, Matsuoka Y, Takami H +9 more
Plain English This study looked at a rare bone cancer called malignant giant-cell tumor, which can develop from a more common type of giant-cell tumor. Researchers successfully created mini tumors, called organoids, from a patient's tumor sample, which they used to study the cancer's genetic changes and how it behaves. They found that these organoids closely matched the original tumor in both structure and genetics, and this model can help in understanding the disease better and finding new treatments.
Who this helps: This benefits patients with malignant giant-cell tumors and their doctors by providing a tool for better understanding and treating this rare cancer.
In situ characterization of the agglutination of lectins via cross-linking of carbohydrates by time-resolved measurement of forward static light scattering.
2023
Bioscience, biotechnology, and biochemistry
Ogata M, Onoda T, Wakamatsu T
Plain English This study looked at how certain proteins, called lectins, bind to sugar molecules, specifically using a technique that tracks how this binding happens over time. The researchers found that as they increased the concentration of sugar clusters and lectins, the intensity of light scattering increased, indicating that more complexes were forming. This is important because understanding these interactions can help improve how we use lectins in medical research and therapies.
Who this helps: This helps researchers and medical professionals working on treatments involving lectins and carbohydrates.
Severe ocular complications of SJS/TEN and associations among pre-onset, acute, and chronic factors: a report from the international ophthalmology collaborative group.
2023
Frontiers in medicine
Ueta M, Inoue C, Nakata M, Sotozono C, Kim MK +15 more
Plain English Researchers from around the world studied 682 patients with Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) to understand why many of these patients face serious eye problems. They found that 50% of patients had severe eye complications, especially if they used cold medications or experienced cold symptoms before SJS/TEN started. Young patients under 30 and females were also more likely to suffer from these issues, highlighting the importance of monitoring these specific groups closely.
Who this helps: This helps patients with SJS/TEN and their doctors by identifying risk factors for severe eye complications.
SHARPIN Enhances Ferroptosis in Synovial Sarcoma Cells via NF-κB- and PRMT5-Mediated PGC1α Reduction.
2023
Cancers
Tamiya H, Urushihara N, Shizuma K, Ogawa H, Nakai S +3 more
Plain English This study focused on a rare type of cancer called sarcoma and investigated how a specific protein, SHARPIN, affects the death of cancer cells through a process known as ferroptosis. The researchers found that higher levels of SHARPIN were linked to shorter survival in cancer patients and that it made sarcoma cells more sensitive to ferroptosis, especially those with elevated iron uptake and SHARPIN levels. This is important because it suggests that targeting ferroptosis could offer new treatment options for sarcoma patients.
Who this helps: This helps patients with sarcoma and their doctors by providing potential new therapies.
Measuring the Electrical Resistivity of Liquid Iron to 1.4 Mbar.
2023
Physical review letters
Ohta K, Suehiro S, Kawaguchi SI, Okuda Y, Wakamatsu T +5 more
Plain English This study examined how well liquid iron conducts electricity under extreme pressure and temperature conditions, specifically at 135 gigapascals (about 1.4 million times atmospheric pressure) and 6,680 degrees Kelvin. The researchers found that liquid iron’s ability to conduct electricity changes little with temperature and noticeably drops around 50 gigapascals, which might be linked to a change in its magnetic properties. Understanding these properties of liquid iron is important because it helps scientists better understand the behavior of materials in Earth’s core, which can inform studies related to geophysics and planetary science.
Who this helps: This helps scientists and researchers in geophysics and material science.
Secondary leiomyosarcoma of the nasal cavity in a treated patient with possible hereditary retinoblastoma with germline reciprocal translocation of RB1 and DMXL1 and somatic TP53 mutation: A case report.
2023
Molecular and clinical oncology
Yagi T, Nakamura H, Kukita Y, Wakamatsu T, Tamiya H +7 more
Plain English This study looked at a patient who had survived retinoblastoma, a type of eye cancer, and developed a rare cancer called leiomyosarcoma in their nasal cavity 42 years after being treated with radiation. The researchers found genetic changes in the cancer tissue, including mutations linked to their previous cancer treatment and a possible inherited risk for developing additional cancers. Understanding these genetic changes is important because it can help identify similar risks in other survivors of childhood cancers.
Who this helps: This research benefits cancer survivors and their doctors by providing insights into the long-term risks of secondary cancers.
KMT2A-rearranged sarcoma with unusual fusion gene CBX6::KMT2A::PYGO1.
2023
Virchows Archiv : an international journal of pathology
Nakamura H, Kukita Y, Wakamatsu T, Takenaka S, Yoshida K +1 more
Plain English This study focused on a rare type of tumor called sarcoma that has a specific genetic change known as a KMT2A rearrangement. Researchers found a case of a 47-year-old man whose tumor contained a new and unusual genetic fusion called CBX6::KMT2A::PYGO1, which looked different from other known KMT2A-related tumors and did not return or spread for almost three years after surgery. Understanding this unique tumor may help doctors better identify and treat similar cases in the future.
Who this helps: This helps patients with rare sarcomas and their doctors manage treatment options more effectively.
Physical frailty recovery is slower than mental frailty recovery after non-cardiac surgery in older adult patients.
2023
Langenbeck's archives of surgery
Kishiki T, Hasegawa H, Yoshino H, Aso N, Iioka A +15 more
Plain English This study looked at how older adults recover from physical and mental frailty after non-heart surgery. Researchers found that while mental functions stayed stable and started recovering quickly, physical health took much longer to improve. For example, handgrip strength dropped significantly after surgery and only partially recovered over time; the dominant hand showed some improvement, but the nondominant hand did not recover as well.
Who this helps: This information benefits older patients who are preparing for surgery, their families, and healthcare providers.
Cultivation of Piezotolerant and Piezophilic Hyperthermophiles with a Newly Developed Constant High Pressure and Temperature Culturing and Monitoring System.
2023
Microbes and environments
Mori F, Ijiri A, Nishimura T, Wakamatsu T, Katsuki N +1 more
Plain English This study focused on developing a new system to grow and monitor microorganisms that thrive in extreme conditions, such as high temperature and pressure found in deep-sea environments. The researchers successfully cultivated three types of heat-loving microbes and discovered that changes in pressure can affect their growth. Specifically, they were able to maintain stable conditions for nine days at 82 degrees Celsius and 20 MPa of pressure, allowing for better study of these unique microorganisms.
Who this helps: This helps scientists studying extreme environments and potential biotechnological applications of these microbes.
Comorbidity, body mass index, and performance status as prognostic factors in older patients with soft-tissue sarcoma.
2022
Journal of geriatric oncology
Tamiya H, Imura Y, Wakamatsu T, Takenaka S
Plain English This study looked at factors that affect survival in older patients with soft tissue sarcoma (STS), analyzing data from 262 patients aged 60 and older. Researchers found that older age, advanced cancer stage, poor performance status, and low body mass index (BMI) were linked to worse survival rates. Specifically, patients with advanced cancer stage and poor performance status had significantly lower overall survival rates, highlighting the importance of these factors in treatment planning.
Who this helps: This helps doctors understand which factors to prioritize when treating older patients with STS.
Lung fibrosis is a novel therapeutic target to suppress lung metastasis of osteosarcoma.
2022
International journal of cancer
Yui Y, Kumai J, Watanabe K, Wakamatsu T, Sasagawa S
Plain English The study explored how lung fibrosis affects the spread of osteosarcoma, a type of bone cancer that often spreads to the lungs. Researchers found that lung metastasis of osteosarcoma was accompanied by significant fibrosis in lung tissue samples and that antifibrotic drugs, like pirfenidone and nintedanib, could reduce metastasis in a mouse model. This matters because it opens up new treatment possibilities for patients whose osteosarcoma has spread to the lungs.
Who this helps: This helps patients with metastatic osteosarcoma.
Impact of Surgery and Chemotherapy on Metastatic Extrauterine Leiomyosarcoma.
2022
Current oncology (Toronto, Ont.)
Imura Y, Takenaka S, Outani H, Nakai T, Yasuda N +4 more
Plain English This study looked at the outcomes of 61 patients with metastatic extrauterine leiomyosarcoma (euLMS), a rare cancer that spreads outside the uterus. It found that the five-year survival rate for these patients is only 38.3%, with larger tumors and multiple metastasis leading to poorer survival. It emphasizes that surgery to remove metastases can improve outcomes, and chemotherapy can still help those who cannot have surgery.
Who this helps: Patients with metastatic euLMS and their doctors.
Developing a platform for production of the oxylipin KODA in plants.
2022
Journal of experimental botany
Ihara Y, Wakamatsu T, Yokoyama M, Maezawa D, Ohta H +1 more
Plain English Researchers studied how to produce more of a plant compound called KODA, which helps plants recover from stress, particularly in challenging environments. They found that by introducing specific genes from a water plant into tobacco and mustard plants, they were able to increase KODA production, but only with certain techniques and under specific conditions. Although the initial amounts of KODA were low, they could boost its levels through additional processing of the plant extracts. This research is important because higher KODA levels can improve crop resilience, making farming more sustainable.
Who this helps: This benefits farmers and agricultural scientists looking to enhance crop yields.
Establishment of Organoids From Human Epithelioid Sarcoma With the Air-Liquid Interface Organoid Cultures.
2022
Frontiers in oncology
Wakamatsu T, Ogawa H, Yoshida K, Matsuoka Y, Shizuma K +8 more
Plain English This study focused on creating mini-tumors, called organoids, from human epithelioid sarcoma, a type of cancer, using a new method that allows better growth and study of these tumors. Researchers successfully established organoids from samples taken from two patients, which could be grown and maintained for more than three generations. This is important because these organoids now provide a better way to understand the cancer and could help develop new treatments for patients.
Who this helps: Patients with epithelioid sarcoma and other types of sarcoma.
Clinical Outcome of Patients with Pelvic and Retroperitoneal Bone and Soft Tissue Sarcoma: A Retrospective Multicenter Study in Japan.
2022
Cancers
Takemori T, Kawamoto T, Hara H, Fukase N, Fujiwara S +29 more
Plain English This study looked at 187 patients in Japan with a type of cancer called bone and soft tissue sarcoma located in the pelvic and retroperitoneal areas. Researchers found that 71.7% of these patients were alive three years after treatment, while 79.1% had not had their cancer return locally. Specific factors, like the size of the tumor and the age of the patient, affected their chances of survival and cancer-free status, with those having osteosarcoma facing poorer outcomes.
Who this helps: This information is valuable for doctors treating patients with this type of cancer, as it helps them understand the factors that influence patient outcomes.
Intraoperative Colonoscopy in Laparoscopic Rectal Cancer Surgery Reduces Anastomotic Leakage.
2022
Journal of the anus, rectum and colon
Kishiki T, Kojima K, Aso N, Iioka A, Wakamatsu T +7 more
Plain English This study looked at complications following laparoscopic surgery for rectal cancer, specifically focusing on a serious issue called anastomotic leakage (AL), which occurs when a connection in the intestines fails to heal properly. Out of 201 patients, 16 (8%) experienced AL, and the research found that using intraoperative colonoscopy (a camera tool) during surgery, along with other factors, can help predict and possibly reduce this risk. The study's results show that using intraoperative colonoscopy is more effective in preventing leakage compared to not using it.
Who this helps: This helps patients undergoing laparoscopic surgery for rectal cancer by reducing the risk of serious complications.
Clinical application of comprehensive genomic profiling panel to thoracic malignancies: A single-center retrospective study.
2022
Thoracic cancer
Kunimasa K, Sugimoto N, Kawamura T, Yamasaki T, Honma K +15 more
Plain English This study looked at how useful a genetic testing tool, called comprehensive genomic profiling (CGP), is for patients with lung cancer and other chest tumors after their initial treatments. Out of 60 patients, 10% received new targeted treatments based on their CGP results, and many had genetic mutations that could affect their treatment options. This is important because it shows that CGP can uncover hidden genetic factors that guide better treatment decisions, potentially improving patient outcomes.
Who this helps: This helps patients with thoracic cancer and their doctors by providing more personalized treatment options.
A giant Brunner gland hamartoma successfully treated by endoscopic excision followed by transanal retrieval: A case report.
2021
Medicine
Maruo M, Tahara T, Inoue F, Kasai T, Saito N +11 more
Plain English This study focused on a rare type of benign tumor called a Brunner gland hamartoma, which can cause serious symptoms like anemia and vomiting. The researchers successfully removed a large 55 mm tumor from a 38-year-old woman using a minimally invasive method that involved an endoscopic procedure followed by retrieving the tumor through the anus. This approach is significant because it offers a less invasive treatment option for larger tumors, which are typically more challenging to remove.
Who this helps: This benefits patients suffering from Brunner gland hamartomas and their doctors by providing a new treatment option.
Size effect of the guest cation on the AlOframework in aluminate sodalite-type oxides M[AlO](SO)(M = Srand Ca) in the I43m phase.
2021
Acta crystallographica Section B, Structural science, crystal engineering and materials
Nakahira Y, Kawamura G, Wakamatsu T, Terasaki I, Taniguchi H +2 more
Plain English Researchers studied two types of compounds called SAS and CAS, looking at how the size of specific guest ions (strontium and calcium) affects the overall structure of these compounds. They found that the spaces between the guest ions and oxygen are nearly what you'd expect based on their sizes, indicating that the arrangement of atoms is influenced by how much space these ions take up. This matters because understanding these interactions can help improve the design of materials used in various applications.
Who this helps: This is beneficial for scientists and engineers working on advanced materials.
Tocilizumab Controls Paraneoplastic Inflammatory Syndrome but Does Not Suppress Tumor Growth of Angiomatoid Fibrous Histiocytoma.
2021
Case reports in oncological medicine
Sabe H, Inoue A, Nagata S, Imura Y, Wakamatsu T +2 more
Plain English This study looked at a rare soft tissue tumor called angiomatoid fibrous histiocytoma (AFH) in a patient who had both local recurrence and distant spread of the tumor. The treatment with tocilizumab, which targets a substance called interleukin-6 (IL-6), helped manage a related inflammatory condition but did not stop the tumor from growing. This highlights that IL-6 isn't the main driver of AFH growth, suggesting that doctors should closely monitor patients even if inflammation improves.
Who this helps: This helps doctors treating patients with angiomatoid fibrous histiocytoma.
Impact of Surgical Resection and Reasons for Poor Prognosis of Pelvic Osteosarcoma Based on the Bone Tumor Registry in Japan.
2021
Cancers
Takenaka S, Tamiya H, Wakamatsu T, Nakai S, Imura Y +3 more
Plain English This study looked at pelvic osteosarcoma, a type of bone cancer that has worse outcomes compared to osteosarcoma in the leg. It found that patients with pelvic osteosarcoma often have larger tumors, are usually older, and frequently have cancer that has spread when they're diagnosed, all contributing to a poor survival rate. Surgical treatment can improve survival rates, but it should be carefully considered based on a patient's age and the stage of the tumor.
Who this helps: This information is valuable for patients with pelvic osteosarcoma and their doctors in making treatment decisions.
Simple In-liquid Staining of Microbial Cells for Flow Cytometry Quantification of the Microbial Population in Marine Subseafloor Sediments.
2021
Microbes and environments
Mori F, Nishimura T, Wakamatsu T, Terada T, Morono Y
Plain English Researchers developed a quick and easy way to stain tiny marine microbes in subseafloor sediments so they can be easily counted using a technique called flow cytometry. They found that using a specific amount of a dye (10 parts dye for every 1 part sediment) allowed for clear identification of microbial cells while making other particles less visible, leading to more accurate counts. This new method makes it faster to study microbial life in ocean sediments, which is crucial for understanding marine ecosystems and their interactions with the environment.
Who this helps: This helps scientists studying marine biology and environmental health.
18F-Fluorodeoxyglucose Positron Emission Tomography Is Useful in the Evaluation of Prognosis in Retroperitoneal Sarcoma.
2021
Cancers
Wakamatsu T, Imura Y, Tamiya H, Yagi T, Yasuda N +8 more
Plain English This study looked at 201 patients with retroperitoneal sarcoma, a rare type of tumor, to see how useful a specific imaging test (FDG-PET) is in predicting how long patients might live after their diagnosis. The researchers found that patients with a higher level on the FDG-PET scan (SUVmax ≥4) had a median survival of 275.8 months, compared to just 79.5 months for those with lower levels (SUVmax <4). These findings are important because they can help doctors better assess the prognosis for patients and tailor treatment strategies, particularly for those with dedifferentiated liposarcoma.
Who this helps: This helps doctors in making better treatment decisions for patients with retroperitoneal sarcoma.
Low-spin ferric iron in primordial bridgmanite crystallized from a deep magma ocean.
2021
Scientific reports
Okuda Y, Ohta K, Nishihara Y, Hirao N, Wakamatsu T +3 more
Plain English This study looked at a mineral called bridgmanite, which makes up a large part of the Earth's mantle, to understand the type of iron it contains and how it formed. Researchers found that bridgmanite created under high pressure has more low-spin iron compared to that made under lower pressure, indicating that the deeper parts of the Earth's mantle may have different properties than previously thought. This matters because it helps us understand how the Earth's interior evolved and how temperature and material distributions have changed over time.
Who this helps: This helps geologists and researchers studying Earth's formation and structure.
Prevalence and associated risk factors for dry eye disease among Brazilian undergraduate students.
2021
PloS one
Yang I, Wakamatsu T, Sacho IBI, Fazzi JH, de Aquino AC +4 more
Plain English Researchers studied dry eye disease in Brazilian college students to see how common it is and what factors might contribute to it. They found that 34.4% of the students reported symptoms that suggest they have dry eye, with the numbers being higher in women (42.6%) compared to men (24.0%). These findings are important because they highlight that young people are experiencing significant discomfort from dry eye, likely due to factors like long screen time and lack of sleep.
Who this helps: This helps students, healthcare providers, and anyone involved in eye care.
Clinical Outcomes and Prognostic Factors for Patients with Malignant Peripheral Nerve Sheath Tumour.
2021
Sarcoma
Imura Y, Outani H, Takenaka S, Yasuda N, Nakai S +5 more
Plain English This study looked at 60 patients with malignant peripheral nerve sheath tumor (MPNST) treated from 1991 to 2020. It found that the overall survival rate after five years was 69.5%, and patients who had surgery to remove the tumor had a significantly better chance of survival. Specifically, those with localized tumors who had surgery had five-year survival rates of 81.1%. This information emphasizes the importance of surgical treatment and careful management for improving outcomes in patients with this aggressive cancer.
Who this helps: This helps patients diagnosed with malignant peripheral nerve sheath tumors and their doctors.
Construction of Aerobic/Anaerobic-Substrate-Induced Gene Expression Procedure for Exploration of Metagenomes From Subseafloor Sediments.
2021
Frontiers in microbiology
Wakamatsu T, Mizobuchi S, Mori F, Futagami T, Terada T +1 more
Plain English This research focused on improving a method called SIGEX that helps scientists examine the genes found in sediment from the ocean floor, specifically under both oxygen-rich and oxygen-poor conditions. By enhancing how they collect DNA samples, the researchers successfully created large DNA libraries (around 6 billion base pairs each) from sediments in two different ocean regions. They found that certain chemicals, particularly 3-chlorobenzoate and 2,4-dichlorophenol, triggered more gene activity than others, especially in the absence of oxygen, revealing previously hidden genetic functions that only work in anaerobic environments.
Who this helps: This benefits researchers studying ocean sediments and microbial life, as well as the understanding of anaerobic ecosystems.