نتایج جستجو برای: stromal desmoplasia

تعداد نتایج: 42929  

Journal: :Egyptian Liver Journal 2023

Abstract Background Desmoplastic changes in a tumor have been observed to affect the microenvironment, leading both facilitation and prevention of invasiveness. Methods Between 2016 2020, total 120 patients were diagnosed with gallbladder carcinoma. The cases reviewed for type desmoplastic reaction, grade, stage. reaction was classified as mature, intermediate, immature, they correlated grade R...

2011
Tine S. Mantoni Serena Lunardi Osama Al-Assar Atsushi Masamune Thomas B. Brunner

Pancreatic ductal adenocarcinoma (PDAC) is characterized by a strong desmoplastic reaction where the stromal compartment often accounts for more than half of the tumor volume. Pancreatic stellate cells (PSC) are a central mediator of desmoplasia. There is increasing evidence that desmoplasia is contributing to the poor therapeutic response of PDAC. We show that PSCs promote radioprotection and ...

Journal: :Cancer research 2011
Tine S Mantoni Serena Lunardi Osama Al-Assar Atsushi Masamune Thomas B Brunner

Pancreatic ductal adenocarcinoma (PDAC) is characterized by a strong desmoplastic reaction where the stromal compartment often accounts for more than half of the tumor volume. Pancreatic stellate cells (PSC) are a central mediator of desmoplasia. There is increasing evidence that desmoplasia is contributing to the poor therapeutic response of PDAC. We show that PSCs promote radioprotection and ...

2017
Julienne L Carstens Pedro Correa de Sampaio Dalu Yang Souptik Barua Huamin Wang Arvind Rao James P Allison Valerie S LeBleu Raghu Kalluri

The exact nature and dynamics of pancreatic ductal adenocarcinoma (PDAC) immune composition remains largely unknown. Desmoplasia is suggested to polarize PDAC immunity. Therefore, a comprehensive evaluation of the composition and distribution of desmoplastic elements and T-cell infiltration is necessary to delineate their roles. Here we develop a novel computational imaging technology for the s...

2015
Toshimichi Yoshida Tatsuya Akatsuka Kyoko Imanaka-Yoshida

Tenascin-C (TNC) is highly expressed in cancer tissues. Its cellular sources are cancer and stromal cells, including fibroblasts/myofibroblasts, and also vascular cells. TNC expressed in cancer tissues dominantly contains large splice variants. Deposition of the stroma promotes the epithelial-mesenchymal transition, proliferation, and migration of cancer cells. It also facilitates the formation...

2013
Shin Hamada Atsushi Masamune Tooru Shimosegawa

Therapy-resistance and postoperative recurrence are causes of the poor prognosis in pancreatic cancer. Conventional therapies have a limited impact on the control of pancreatic cancer, resulting in the rapid re-growth of the tumor. The indispensable role of tumor-stromal interaction, which acts as a defender of cancer cells and enhances malignant potential, is being uncovered now. For example, ...

2016
Masaki Yoshida Yoshihiro Miyasaka Kenoki Ohuchida Takashi Okumura Biao Zheng Nobuhiro Torata Hayato Fujita Toshinaga Nabae Tatsuya Manabe Masaya Shimamoto Takao Ohtsuka Kazuhiro Mizumoto Masafumi Nakamura

Desmoplasia contributes to the aggressive behavior of pancreatic cancer. However, recent clinical trials testing several antifibrotic agents on pancreatic cancer have not shown clear efficacy. Therefore, further investigation of desmoplasia-targeting antifibrotic agents by another mechanism is needed. Calpeptin, an inhibitor of calpains, suppressed fibroblast function and inhibited fibrosis. In...

2017
Janusz Franco-Barraza Ralph Francescone Tiffany Luong Neelima Shah Raj Madhani Gil Cukierman Essel Dulaimi Karthik Devarajan Brian L Egleston Emmanuelle Nicolas R Katherine Alpaugh Ruchi Malik Robert G Uzzo John P Hoffman Erica A Golemis Edna Cukierman

Desmoplasia, a fibrotic mass including cancer-associated fibroblasts (CAFs) and self-sustaining extracellular matrix (D-ECM), is a puzzling feature of pancreatic ductal adenocarcinoma (PDACs). Conflicting studies have identified tumor-restricting and tumor-promoting roles of PDAC-associated desmoplasia, suggesting that individual CAF/D-ECM protein constituents have distinguishable tumorigenic a...

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