HIF-1α suppresses myeloma progression by targeting Mcl-1.

ABSTRACT: HIF-1α is involved in the carcinogenesis and progression of multiple types of cancer. However, the precise role of HIF-1α is unclear in multiple myeloma. Through the qRT-PCR and CCK-8 assays, we demonstrated that silencing the expression of HIF-1α and Mcl-1, MM proliferation can be decreased and apoptosis can be induced. Next, using the GEO database, we found that Mcl-1 was increased in MMs. Mcl-1 overexpression counterbalanced the tumor suppressing effect of siHIF-1α on MM apoptosis. Additionally, HIF-1α acting as a transcription factor, could directly target the promoter region of Mcl-1 to promote Mcl-1 expression. Based on the experimental result, our findings strongly suggest that HIF-1α regulated the progression of MMs by directly targeting the Mcl-1.

SUBMITTER: Wu F 

PROVIDER: S-EPMC7414501 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature