Involvement of Macrophages in Proliferation of Prostate Cancer Cells Infected with Trichomonas vaginalisopen access
- Authors
- Kim, Kyu Shik; Moon, Hong Sang; Kim, Sang-Su; Ryu, Jae Sook
- Issue Date
- Dec-2021
- Publisher
- KOREAN SOC PARASITOLOGY
- Keywords
- Trichomonas vaginalis; macrophage; inflammation; prostate cancer; cytokine; chemokine; receptor
- Citation
- KOREAN JOURNAL OF PARASITOLOGY, v.59, no.6, pp.557 - 564
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- KOREAN JOURNAL OF PARASITOLOGY
- Volume
- 59
- Number
- 6
- Start Page
- 557
- End Page
- 564
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/140119
- DOI
- 10.3347/kjp.2021.59.6.557
- ISSN
- 0023-4001
- Abstract
- Macrophages play a key role in chronic inflammation, and are the most abundant immune cells in the tumor microenvironment. We investigated whether an interaction between inflamed prostate cancer cells stimulated with Trichomonas vaginalis and macrophages stimulates the proliferation of the cancer cells. Conditioned medium was prepared from T. vaginalis-infected (TCM) and uninfected (CM) mouse prostate cancer (PCa) cell line (TRAMP-C2 cells). Thereafter conditioned medium was prepared from macrophages (J774A.1 cell line) after incubation with CM (MCM) or TCM (MTCM). When TRAMP-C2 cells were stimulated with T. vaginalis, protein and mRNA levels of CXCL1 and CCL2 increased, and migration of macrophages toward TCM was more extensive than towards CM. Macrophages stimulated with TCM produced higher levels of CCL2, IL-6, TNF-α, their mRNAs than macrophages stimulated with CM. MTCM stimulated the proliferation and invasiveness of TRAMP-C2 cells as well as the expression of cytokine receptors (CCR2, GP130, CXCR2). Importantly, blocking of each cytokine receptors with anti-cytokine receptor antibody significantly reduced the proliferation and invasiveness of TRAMP-C2 cells. We conclude that inflammatory mediators released by TRAMP-C2 cells in response to infection by T. vaginalis stimulate the migration and activation of macrophages and the activated macrophages stimulate the proliferation and invasiveness of the TRAMP-C2 cells via cytokine-cytokine receptor binding. Our results therefore suggested that macrophages contribute to the exacerbation of PCa due to inflammation of prostate cancer cells reacted with T. vaginalis.
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