Journal
EXPERIMENTAL AND THERAPEUTIC MEDICINE
Volume 23, Issue 6, Pages -Publisher
SPANDIDOS PUBL LTD
DOI: 10.3892/etm.2022.11339
Keywords
ovarian cancer; paired box 2; vascular channel; tubular channel; vasculogenic mimicry; angiogenesis; CD31; periodic acid-Schiff
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The overexpression of PAX2 protein in both normal and cancerous ovarian epithelial cells induces the formation of vascular-like structures, suggesting a potential role in the progression of ovarian cancer.
In adult tissue, the paired box 2 (PAX2) protein is expressed in healthy oviductal, but not normal ovarian surface epithelial cells. PAX2 is expressed in a subset of cases of serous ovarian carcinoma; however, the role of PAX2 in the initiation and progression of ovarian cancer remains unknown. The aim of the present study was to determine the biological effects of PAX2 expression in normal and cancerous epithelial cells. By culturing the normal and cancerous ovarian cells that express PAX2 in 3D culture and staining the cells with vasculogenic mimicry markers such as CD31 and PAS, it was shown that PAX2 overexpression in both normal and cancerous ovarian epithelial cells induced formation of vascular-like structures both in vitro and in vivo. These results indicated a potential role of PAX2 in ovarian cancer progression by increasing the presence of vascular-like structures to promote the supply of nutrients to tumor cells and facilitate cancer cell proliferation and invasion.
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