Hong-Lin Hu1, Han-Song Bai2, Hai-Xia Pan3. 1. Department of Oncology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China. 2. Department of Oncology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China; Graduate School, Zunyi Medical College, Zunyi 563000, China. 3. Department of Oncology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China. Electronic address: 1206682648@qq.com.
Abstract
OBJECTIVE: To explore the correlation between tumor-associated macrophages and the proliferation and invasion of type I endometrial carcinoma. METHODS: Immunohistochemistry was used to investigate the infiltration of macrophages in normal and different types of hyperplastic endometrial lesions. The proliferation and invasion ability of type I endometrial carcinoma cell line RL95-2 influenced by mononuclear macrophage cell line THP-1 (constructed M2 type macrophages) was detected by CCK8 and transwell technologies respectively. Transwell was used to evaluate the recruiting ability of RL95-2 on THP-1 cells. Otherwise, the western blot was also used to detect the expression of CyclinD1 and MMP-2 in RL95-2 with the influence of THP-1. RESULTS: Immunohistochemistry result showed a positive correlation between the number of infiltrating macrophages and the progression of endometrial hyperplasia. THP-1 recruited by RL95-2 could promote its proliferation and invasion and enhance the expression of the CyclinD1 and MMP-2 protein in a time dependent manner (P < 0.05). CONCLUSIONS: Increase of the number of infiltrating macrophages and its contribution to the tumor inflammatory microenvironment may result in the development of the type I endometrial carcinoma.
OBJECTIVE: To explore the correlation between tumor-associated macrophages and the proliferation and invasion of type I endometrial carcinoma. METHODS: Immunohistochemistry was used to investigate the infiltration of macrophages in normal and different types of hyperplastic endometrial lesions. The proliferation and invasion ability of type I endometrial carcinoma cell line RL95-2 influenced by mononuclear macrophage cell line THP-1 (constructed M2 type macrophages) was detected by CCK8 and transwell technologies respectively. Transwell was used to evaluate the recruiting ability of RL95-2 on THP-1 cells. Otherwise, the western blot was also used to detect the expression of CyclinD1 and MMP-2 in RL95-2 with the influence of THP-1. RESULTS: Immunohistochemistry result showed a positive correlation between the number of infiltrating macrophages and the progression of endometrial hyperplasia. THP-1 recruited by RL95-2 could promote its proliferation and invasion and enhance the expression of the CyclinD1 and MMP-2 protein in a time dependent manner (P < 0.05). CONCLUSIONS: Increase of the number of infiltrating macrophages and its contribution to the tumor inflammatory microenvironment may result in the development of the type I endometrial carcinoma.
Authors: A V Kubyshkin; L L Aliev; I I Fomochkina; Ye P Kovalenko; S V Litvinova; T G Filonenko; N V Lomakin; V A Kubyshkin; O V Karapetian Journal: Inflamm Res Date: 2016-06-16 Impact factor: 4.575