壁細胞β3-整合素與腫瘤細胞的交流影響腫瘤負荷
作者:
小柯機器人發布時間:2020/6/1 20:30:51
英國倫敦大學皇后瑪麗學院Kairbaan M. Hodivala-Dilke、José M. Muñoz-Félix、中山大學Ping-Pui Wong等研究人員,合作發現壁細胞β3-整合素與腫瘤細胞的交流影響腫瘤負荷。這一研究成果於2020年5月29日在線發表在《細胞》上。
研究人員發現,高比例的壁細胞β3-整合素陰性腫瘤血管(BV)與腫瘤大小的增加相關,但對BV數量沒有影響。壁細胞β3-整合素的丟失還可以促進植入和自體小鼠腫瘤模型中的腫瘤生長,而對BV數量或功能沒有明顯影響。在分子水平上,壁細胞β3-整合素的缺失通過FAK-p-HGFR-p-Akt-p-p65增強信號傳導,從而驅動CXCL1、CCL2和TIMP-1的產生。
此外,源自壁細胞的CCL2刺激腫瘤細胞MEK1-ERK1/2-ROCK2依賴性信號傳導並增強腫瘤細胞存活和腫瘤生長。總的來說,這些數據表明,壁細胞可以通過β3-整合素調節的旁分泌信號控制腫瘤的生長,從而提供了新的癌症生長控制機制。
據悉,人們認為血管(BV)形成的增強可通過增加營養輸送來驅動腫瘤生長。然而,這一發現忽略了壁細胞在不依賴BV功能的情況下直接影響腫瘤生長的潛在作用。
附:英文原文
Title: Cancer Burden Is Controlled by Mural Cell-β3-Integrin Regulated Crosstalk with Tumor Cells
Author: Ping-Pui Wong, José M. Muoz-Félix, Maruan Hijazi, Hyojin Kim, Stephen D. Robinson, Beatriz De Luxán-Delgado, Irene Rodríguez-Hernández, Oscar Maiques, Ya-Ming Meng, Qiong Meng, Natalia Bodrug, Matthew Scott Dukinfield, Louise E. Reynolds, George Elia, Andrew Clear, Catherine Harwood, Yu Wang, James J. Campbell, Rajinder Singh, Penglie Zhang, Thomas J. Schall, Kylie P. Matchett, Neil C. Henderson, Peter W. Szlosarek, Sally A. Dreger, Sally Smith, J. Louise Jones, John G. Gribben, Pedro R. Cutillas, Pascal Meier, Victoria Sanz-Moreno, Kairbaan M. Hodivala-Dilke
Issue&Volume: 2020-05-29
Abstract: Enhanced blood vessel (BV) formation is thought to drive tumor growth through elevatednutrient delivery. However, this observation has overlooked potential roles for muralcells in directly affecting tumor growth independent of BV function. Here we provideclinical data correlating high percentages of mural-β3-integrin-negative tumor BVswith increased tumor sizes but no effect on BV numbers. Mural-β3-integrin loss alsoenhances tumor growth in implanted and autochthonous mouse tumor models with no detectableeffects on BV numbers or function. At a molecular level, mural-cell β3-integrin lossenhances signaling via FAK-p-HGFR-p-Akt-p-p65, driving CXCL1, CCL2, and TIMP-1 production.In particular, mural-cell-derived CCL2 stimulates tumor cell MEK1-ERK1/2-ROCK2-dependentsignaling and enhances tumor cell survival and tumor growth. Overall, our data indicatethat mural cells can control tumor growth via paracrine signals regulated by β3-integrin,providing a previously unrecognized mechanism of cancer growth control.
DOI: 10.1016/j.cell.2020.02.003
Source: https://www.cell.com/cell/fulltext/S0092-8674(20)30147-1
Cell:《細胞》,創刊於1974年。隸屬於細胞出版社,最新IF:36.216