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R. Matsuyama · SciRah

Researcher profile · Semantic Scholar

R. Matsuyama

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R. Matsuyama — researcher profile on SciRah

h-index: 45
Works: 283
Citations: 5,879

Most-cited papers

Clinical Practice Guidelines for Pancreatic Cancer 2022 from the Japan Pancreas Society: a synopsis
T. Okusaka, Masafumi Nakamura, Masahiro Yoshida, Masayuki Kitano +130 more
2023International Journal of Clinical Oncology144 citations Open access
Semantic Scholar
Urine as a Source of Liquid Biopsy for Cancer
M. Oshi, V. Murthy, Hideo Takahashi, M. Huyser +6 more
2021Cancers109 citations Open access
Semantic Scholar
Abundance of reactive oxygen species (ROS) is associated with tumor aggressiveness, immune response and worse survival in breast cancer
M. Oshi, S. Gandhi, Li Yan, Y. Tokumaru +5 more
2022Breast Cancer Research and Treatment75 citations Open access
Semantic Scholar
Linkage of methionine addiction, histone lysine hypermethylation, and malignancy
Jun Yamamoto, Sachiko Inubushi, Qinghong Han, Y. Tashiro +9 more
2022iScience66 citations Open access
Semantic Scholar
Mortality, morbidity, and failure to rescue in hepatopancreatoduodenectomy: An analysis of patients registered in the National Clinical Database in Japan
I. Endo, N. Hirahara, H. Miyata, H. Yamamoto +16 more
2021Journal of hepato-biliary-pancreatic sciences63 citations Open access
Semantic Scholar
Extent and Instability of Trimethylation of Histone H3 Lysine Increases With Degree of Malignancy and Methionine Addiction
Jun Yamamoto, Y. Aoki, Sachiko Inubushi, Qinghong Han +8 more
2021Cancer Genomics & Proteomics61 citations Open access
Semantic Scholar
G2M checkpoint pathway alone is associated with drug response and survival among cell proliferation-related pathways in pancreatic cancer.
M. Oshi, A. Patel, L. Le, Y. Tokumaru +4 more
2021American Journal of Cancer Research61 citations
Semantic Scholar
Outcomes of lung metastasis from pancreatic cancer: A nationwide multicenter analysis
Yuki Homma, I. Endo, R. Matsuyama, M. Sho +21 more
2022Journal of hepato-biliary-pancreatic sciences55 citations
Semantic Scholar
Annexin A1 Expression Is Associated with Epithelial–Mesenchymal Transition (EMT), Cell Proliferation, Prognosis, and Drug Response in Pancreatic Cancer
M. Oshi, Y. Tokumaru, S. Mukhopadhyay, Li Yan +3 more
2021Cells53 citations Open access
Semantic Scholar
Enhanced DNA Repair Pathway is Associated with Cell Proliferation and Worse Survival in Hepatocellular Carcinoma (HCC)
M. Oshi, Tae Hee Kim, Y. Tokumaru, Li Yan +4 more
2021Cancers51 citations Open access
Semantic Scholar
Reversion from Methionine Addiction to Methionine Independence Results in Loss of Tumorigenic Potential of Highly-malignant Lung-cancer Cells
Jun Yamamoto, Y. Aoki, Qinghong Han, Norihiko Sugisawa +9 more
2021Anticancer Research39 citations Open access
Semantic Scholar
Adipogenesis in triple-negative breast cancer is associated with unfavorable tumor immune microenvironment and with worse survival
M. Oshi, Y. Tokumaru, F. A. Angarita, L.A.L. Lee +4 more
2021Scientific Reports37 citations Open access
Semantic Scholar
Enhanced immune response outperform aggressive cancer biology and is associated with better survival in triple-negative breast cancer
M. Oshi, A. Patel, Rong-Rong Wu, L. Le +7 more
2022npj Breast Cancer34 citations Open access
Semantic Scholar
Defining the Risk of Early Recurrence Following Curative-Intent Resection for Distal Cholangiocarcinoma
K. Sahara, D. Tsilimigras, J. Toyoda, K. Miyake +15 more
2021Annals of Surgical Oncology33 citations
Semantic Scholar
MELK expression in breast cancer is associated with infiltration of immune cell and pathological compete response (pCR) after neoadjuvant chemotherapy.
M. Oshi, S. Gandhi, M. Huyser, Y. Tokumaru +5 more
2021American Journal of Cancer Research32 citations
Semantic Scholar
Angiogenesis is associated with an attenuated tumor microenvironment, aggressive biology, and worse survival in gastric cancer patients.
M. Oshi, V. Satyananda, F. A. Angarita, Tae Hee Kim +6 more
2021American Journal of Cancer Research30 citations
Semantic Scholar
Intratumoral density of regulatory T cells is a predictor of host immune response and chemotherapy response in colorectal cancer.
M. Oshi, Joy Sarkar, Rong-Rong Wu, Y. Tokumaru +6 more
2022American Journal of Cancer Research29 citations
Semantic Scholar
Abundance of Microvascular Endothelial Cells Is Associated with Response to Chemotherapy and Prognosis in Colorectal Cancer
M. Oshi, M. Huyser, L. Le, Y. Tokumaru +4 more
2021Cancers28 citations Open access
Semantic Scholar
Sphingosine 1-phosphate (S1P) produced by sphingosine kinase 1 (SphK1) and exported via ABCC1 is related to hepatocellular carcinoma (HCC) progression.
V. Satyananda, M. Oshi, Y. Tokumaru, A. Maiti +4 more
2021American Journal of Cancer Research28 citations
Semantic Scholar
The Unfolded Protein Response Is Associated with Cancer Proliferation and Worse Survival in Hepatocellular Carcinoma
A. Patel, M. Oshi, Li Yan, R. Matsuyama +2 more
2021Cancers24 citations Open access
Semantic Scholar
Impact of Gemcitabine Plus S1 Neoadjuvant Chemotherapy on Borderline Resectable Perihilar Cholangiocarcinoma
R. Matsuyama, R. Mori, Yohei Ota, Yuki Homma +8 more
2022Annals of Surgical Oncology23 citations
Semantic Scholar
Should Lymph Nodes Be Retrieved in Patients with Intrahepatic Cholangiocarcinoma? A Collaborative Korea–Japan Study
C. Kang, K. Suh, N. Yi, T. Hong +22 more
2021Cancers23 citations Open access
Semantic Scholar
Immune cytolytic activity is associated with reduced intra-tumoral genetic heterogeneity and with better clinical outcomes in triple negative breast cancer.
M. Oshi, T. Kawaguchi, Li Yan, Xuan Peng +14 more
2021American Journal of Cancer Research23 citations
Semantic Scholar
Conversion surgery for initially unresectable locally advanced biliary tract cancer: A multicenter collaborative study conducted in Japan and Korea
Y. Yabushita, J. Park, Y. Yoon, Masayuki Ohtsuka +25 more
2024Journal of hepato-biliary-pancreatic sciences22 citations
Semantic Scholar
A Novel Three-Gene Score as a Predictive Biomarker for Pathologically Complete Response after Neoadjuvant Chemotherapy in Triple-Negative Breast Cancer
M. Oshi, F. A. Angarita, Y. Tokumaru, Li Yan +3 more
2021Cancers22 citations Open access
Semantic Scholar
Conflicting roles of EGFR expression by subtypes in breast cancer.
M. Oshi, S. Gandhi, Y. Tokumaru, Li Yan +5 more
2021American Journal of Cancer Research22 citations
Semantic Scholar
Covered metallic stent placement for biliary drainage could be promising in the coming era of neoadjuvant chemo‐radiation therapy for all pancreatic cancer
S. Hasegawa, K. Kubota, S. Yagi, Y. Kurita +6 more
2021Journal of hepato-biliary-pancreatic sciences21 citations
Semantic Scholar
Surgical Outcomes of Pancreatectomy with Resection of the Portal Vein and/or Superior Mesenteric Vein and Jejunal Vein for Pancreatic Head Cancer
Y. Nagakawa, Jin-Young Jang, M. Kawai, Song-Cheol Kim +21 more
2021Annals of Surgery21 citations
Semantic Scholar
Predicting risk of recurrence after resection of stage I intrahepatic cholangiocarcinoma.
Jun Kawashima, K. Sahara, Feng Shen, A. Guglielmi +14 more
2024Journal of Gastrointestinal Surgery19 citations Open access
Semantic Scholar
Neoadjuvant Therapy for Extrahepatic Biliary Tract Cancer: A Propensity Score-Matched Survival Analysis
J. Toyoda, K. Sahara, Tomoaki Takahashi, K. Miyake +6 more
2023Journal of Clinical Medicine18 citations Open access
Semantic Scholar
Incidental Gallbladder Cancer on Cholecystectomy: Strategy for Re-resection of Presumed Benign Diseases from a Retrospective Multicenter Study by the Yokohama Clinical Oncology Group
R. Matsuyama, K. Matsuo, R. Mori, M. Sugita +9 more
2021In Vivo18 citations Open access
Semantic Scholar
Essential updates 2019/2020: Surgical treatment of gallbladder cancer
R. Matsuyama, Yasuhiro Yabusita, Yuki Homma, T. Kumamoto +1 more
2021Annals of Gastroenterological Surgery18 citations Open access
Semantic Scholar
Examination of the characteristics of long-term survivors among patients with gallbladder cancer with liver metastasis who underwent surgical treatment: a retrospective multicenter study (ACRoS1406)
R. Higuchi, H. Ono, R. Matsuyama, Yusuke Takemura +6 more
2022BMC Gastroenterology13 citations Open access
Semantic Scholar
Outcomes of neoadjuvant gemcitabine plus S‐1 and radiation therapy for borderline resectable pancreatic cancer
Y. Yabushita, R. Matsuyama, K. Miyake, Yuki Homma +6 more
2022Journal of hepato-biliary-pancreatic sciences12 citations
Semantic Scholar
Requirements for hospitals in Japan to have low operative mortality and failure‐to‐rescue rates
I. Endo, A. Takahashi, H. Tachimori, Hiroaki Miyata +6 more
2023Annals of Gastroenterological Surgery10 citations Open access
Semantic Scholar
Low RUFY3 expression level is associated with lymph node metastasis in older women with invasive breast cancer
F. A. Angarita, M. Oshi, A. Yamada, Li Yan +4 more
2022Breast Cancer Research and Treatment10 citations Open access
Semantic Scholar
Comparison between Neoadjuvant Chemoradiotherapy and Chemotherapy for Patients with Resectable Pancreatic Cancer
Takashi Murakami, R. Matsuyama, M. Oshi, Y. Yabushita +13 more
2025Annals of Surgical Oncology8 citations
Semantic Scholar
Survival Benefit of Primary Tumor Resection Among Elderly Patients with Pancreatic Neuroendocrine Tumors
J. Toyoda, K. Sahara, D. Tsilimigras, K. Miyake +5 more
2021World Journal of Surgery8 citations
Semantic Scholar
Novel machine‐learning model for predicting lymph node metastasis in resectable pancreatic ductal adenocarcinoma
S. Daibo, Yuki Homma, H. Ohya, H. Fukuoka +6 more
2024Annals of Gastroenterological Surgery6 citations Open access
Semantic Scholar
Efficacy of neoadjuvant chemotherapy for initially resectable colorectal liver metastases: A retrospective cohort study
K. Takeda, Y. Sawada, Y. Yabushita, Y. Honma +6 more
2022World Journal of Gastrointestinal Oncology6 citations Open access
Semantic Scholar
A Classification System Specific for Recurrent Inguinal Hernia Following Open Hernia Surgery
Naotaka Yamaguchi, D. Morioka, Yusuke Izumisawa, J. Toyoda +8 more
2021In Vivo5 citations Open access
Semantic Scholar
Neoadjuvant Chemoradiotherapy Enhances Tumor PD-L1 Expression in Pancreatic Cancer
Kanechika Den, Takashi Murakami, R. Matsuyama, Kentaro Miyake +6 more
2025Anticancer Research4 citations
Semantic Scholar
Clinical Relevance of High-Grade Pancreatic Intraepithelial Neoplasia at the Pancreatic Transection Margin in Patients with Pancreatic Ductal Adenocarcinoma
Kei Kobayashi, Y. Sawada, K. Sahara, Yutaro Kikuchi +6 more
2025Annals of Surgical Oncology4 citations
Semantic Scholar
Efficacy of Conversion Surgery for Initially Unresectable Biliary Tract Cancer That Has Responded to Down-Staging Chemotherapy
Takashi Murakami, R. Matsuyama, Y. Yabushita, Yuki Homma +7 more
2025Cancers4 citations Open access
Semantic Scholar
Trends and Variations in Drain Use Following Pancreatoduodenectomy: Is Early Drain Removal Becoming More Common?
K. Sahara, S. Ruff, K. Miyake, J. Toyoda +6 more
2023World Journal of Surgery4 citations
Semantic Scholar
Association of allograft rejection response score with biological cancer aggressiveness and with better survival in triple-negative breast cancer (TNBC).
M. Oshi, L. Le, F. A. Angarita, Y. Tokumaru +4 more
20214 citations
Semantic Scholar
Therapeutic Outcome of Multidisciplinary Treatment in Unresectable Biliary Tract Cancer: A Multicenter Retrospective Analysis
Fumi Harada, Kentaro Miyake, R. Matsuyama, K. Furuta +10 more
2024World Journal of Oncology3 citations Open access
Semantic Scholar
Glasgow Prognostic Score Predicts Survival and Recurrence Pattern in Patients With Hepatocellular Carcinoma After Hepatectomy
T. Kumamoto, K. Takeda, R. Matsuyama, Y. Sawada +9 more
2023Anticancer Research3 citations
Semantic Scholar
CRMP4 Up-regulates M2 Macrophages and Myeloid-derived Suppressor Cells to Promote Pancreatic Cancer in Mice
Yuzo Minegishi, Y. Hiroshima, Keiichi Yazawa, Sho Sato +6 more
2022Anticancer Research3 citations
Semantic Scholar
Surgical Indications for Huge Hepatocellular Carcinoma
T. Kumamoto, R. Matsuyama, K. Takeda, Y. Sawada +6 more
2022Anticancer Research3 citations Open access
Semantic Scholar

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I. Endo — researcher profile on SciRah
M. Oshi×19
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I. Endo×18
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I. Endo — researcher profile on SciRah
K. Takabe×18
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Yuki Homma — researcher profile on SciRah

Y. Yabushita×15

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Y. Tokumaru×15

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Y. Tokumaru — researcher profile on SciRah

T. Kumamoto×13

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T. Kumamoto — researcher profile on SciRah

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Li Yan — researcher profile on SciRah

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K. Sahara — researcher profile on SciRah

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Y. Sawada — researcher profile on SciRah