Premium
Tumor‐associated macrophages induce lymphangiogenesis in cervical cancer via interaction with tumor cells
Author(s) -
Ding Hui,
Cai Jing,
Mao Min,
Fang Yan,
Huang Zaiju,
Jia Jinghui,
Li Tao,
Xu Linjuan,
Wang Junjie,
Zhou Jun,
Yang Qiang,
Wang Zehua
Publication year - 2014
Publication title -
apmis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 88
eISSN - 1600-0463
pISSN - 0903-4641
DOI - 10.1111/apm.12257
Subject(s) - lymphangiogenesis , cervical cancer , lymphatic system , cervical intraepithelial neoplasia , metastasis , pathology , macrophage , lymphatic endothelium , medicine , stroma , cancer cell , cervix , epithelium , cancer research , cancer , immunohistochemistry , biology , in vitro , biochemistry
Our studies were conducted to investigate the clinical and functional significance of tumor‐associated macrophages (TAMs) in cervical tumor lymphatic metastasis. We found that the increase in macrophages in tumor stroma is significantly associated with lymphatic metastasis (p = 0.017), through performing immunohistochemical staining in 111 cervical samples (55 invasive squamous carcinomas of uterine cervix, 27 cervical intraepithelial neoplasms III, and 29 normal cervix). The human lymphatic endothelial cells (HLEC), which were cultured in conditioned medium of cervical cancer cell‐macrophage coculture, formed more tube‐like structures in vitro , when compared with those in conditioned mediums of LEC, normal cervical epithelium, single macrophage, and single cervical cancer cell (all p < 0.001). The mRNA expressions of IL‐1β and IL‐8 in cervical cancer cells cocultured with macrophages were increased, compared with those in cervical cancer cell cultured alone (p IL‐1β < 0.05 and p IL‐8 < 0.01). Meanwhile, the mRNA expression of VEGF‐C and VEGF‐A was increased in macrophages cocultured with cervical cancer cells, compared with the expression in those macrophages cultured alone (both p < 0.05). Taken together, the results suggest that TAMs promote lymphangiogenesis mainly through interaction with surrounding cervical cancer cells.