Motor neuron and pancreas homeobox 1/HLXB9 promotes sustained proliferation in bladder cancer by upregulating CCNE1/2

Journal of Experimental & Clinical Cancer Research : CR
Mingkun ChenZike Qin

Abstract

Uncontrolled proliferation is thought to be the most fundamental characteristic of cancer. Detailed knowledge of cancer cell proliferation mechanisms would not only benefit understanding of cancer progression, but may also provide new clues for developing novel therapeutic strategies. In vitro function of MNX1 (Motor neuron and pancreas homeobox 1) in bladder cancer cell was evaluated using MTT assay, colony formation assay, and bromodeoxyuridine incorporation assay. Real-time PCR and western blotting were performed to detect MNX1 and CCNE1/2 expressions. In vivo tumor growth was conducted in BALB/c-nu mice. We reported that MNX1 is responsible for sustaining bladder cancer cell proliferation. Abnormal MNX1 upregulation in bladder cancer cell lines and 167 human tissue specimens; high MNX1 expression levels correlated significantly with shorter 5-year overall and relapse-free survival in the bladder cancer patients. Furthermore, MNX1 overexpression accelerated bladder cancer cell proliferation and tumorigenicity both in vitro and in vivo, whereas MNX1 downregulation arrested it. In addition, MNX1 transcriptionally upregulated CCNE1 and CCNE2 by directly bounding to their promoters, which promoted G1-S transition in the bladder ...Continue Reading

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Citations

Aug 29, 2019·Journal of Experimental & Clinical Cancer Research : CR·Yanju WuBiao Wang
Jan 3, 2020·Japanese Journal of Clinical Oncology·Ming-Kun ChenCun-Dong Liu

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Methods Mentioned

BETA
PCR
Assay
immunoprecipitation
ChIP
xenografts

Software Mentioned

SPSS
cBioportal

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