| Autor: |
Saito, Mikako, Tokunaga, Naruwa, Saito, Toshiki, Hatakenaka, Tomohiro, Sasaki, Tomonori, Matsuki, Nahoko, Minagawa, Seiya |
| Zdroj: |
Cytotechnology; Apr2023, Vol. 75 Issue 2, p103-113, 11p |
| Abstrakt: |
The expression spectra of connexin (Cx) isoforms were investigated in three mouse melanoma cell lines: B16-F1 (F1), B16-F10 (F10), and B16-BL6 (BL6). Metastatic potential intensity was higher in the order of F1, F10, and BL6. A remarkable behavior of Cx45 was found among 20 isoforms. The expression level of Cx45 was highest in F1 and lowest in BL6. It was inductively predicted that Cx45 might be a novel suppressor of metastasis. A Cx45-overexpressing BL6 cell line (Cx45+BL6) was developed and its properties were compared with those of a wild-type cell line of BL6 (W-BL6). Compared to W-BL6, Cx45+BL6 showed reduced wound healing, Transwell® permeability, and matrix metalloproteinase 9 expression, suggesting the suppression of cellular migration and invasion. The expression of E-cadherin and integrin β1 in Cx45+BL6 was also lower than in W-BL6, suggesting reduced cell adhesion. The decrease in cell adhesion was supported by the cell washing-out assay. In contrast, no difference between W-BL6 and Cx45+BL6 was observed in cell proliferation, suggesting no effect on cell-cycle regulating factors. Finally, an in vivo assay revealed a significant decrease in the number of metastatic colonies of Cx45+BL6 (176 ± 25/lung) in comparison with those of W-BL6 (252 ± 23/lung) in a mouse model. In conclusion, Cx45 is a novel suppressor of melanoma metastasis. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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