KPNA3 promotes epithelial-mesenchymal transition by regulating TGF-β and AKT signaling pathways in MDA-MB-231, a triple-negative breast cancer cell line.

ABSTRACT: Karyopherin-α3 (KPNA3), a karyopherin- α isoform, is intimately associated with metastatic progression via epithelial-mesenchymal transition (EMT). However, the molecular mechanism underlying how KPNA3 acts as an EMT inducer remains to be elucidated. In this report, we identified that KPNA3 was significantly upregulated in cancer cells, particularly in triple-negative breast cancer, and its knockdown resulted in the suppression of cell proliferation and metastasis. The comprehensive transcriptome analysis from KPNA3 knockdown cells indicated that KPNA3 is involved in the regulation of numerous EMTrelated genes, including the downregulation of GATA3 and E-cadherin and the up-regulation of HAS2. Moreover, it was found that KPNA3 EMT-mediated metastasis can be achieved by TGF-β or AKT signali

SUBMITTER: Choi J 

PROVIDER: S-EPMC9978358 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature