Abstract
Desmoplasia and Angiogenesis of Human Gastric Submucosa-Invasive Carcinomas
Junko Nagata*, Tadashi Yoshizawa, Shintaro Goto, Takayoshi Suzuki and Hiroshi Kijima
Corresponding Author: Junko Nagata, Department of Gastroenterology, Tokai University Hachioji Hospital, Hachioji, Japan.
Revised: July 23, 2024; Available Online: July 23, 2024
Citation: Nagata J, Yoshizawa T, Goto S, Suzuki T & Kijima H. (2024) Desmoplasia and Angiogenesis of Human Gastric Submucosa-Invasive Carcinomas. BioMed Res J 8(S1): 06.
Copyrights: ©2024 Nagata J, Yoshizawa T, Goto S, Suzuki T & Kijima H. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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The prognosis of human gastric cancer (stomach cancer) in advanced stage is generally poor, because the tumor has often metastasized. Desmoplasia (reactive fibrosis) and angiogenesis in the cancer microenvironment are important processes of cancer invasion/metastasis. We focused on the desmoplasia and angiogenesis using surgically/endoscopically resected submucosa-invasive carcinomas of the stomach. Desmoplasia is recognized as increase of cancer-associated fibroblasts, and irregular collagen bundles. Desmoplasia-positive cases significantly showed high-grade lymphatic/venous angiogenesis, compared with desmoplasia-negative cases (angiogenesis score: lymphatic 2.34 vs 1.27, p<0.001; venous 2.21 vs 1.69, p<0.005). Lymphatic/venous invasion of cancer cells was frequently found in the desmoplasia-positive cases, compared with desmoplasia-negative cases (lymphatic 89.5% vs 7.7%, p<0.001; venous 76.3% vs 34.6%, p<0.001). In conclusion, the desmoplasia is thought to play important roles of angiogenesis, and lymphatic/venous invasion, i.e., metastatic potentials of stomach cancer.

Keywords: Gastric cancer, Desmoplasia, Angiogenesis, Cancer microenvironment, Metastasis