NFE2L3 Inhibition Induces Cell Cycle Arrest at the G0/G1 Phase in Colorectal Cancer Cells through Downregulating

Lihua Zhang1,2, Dong-Li Hu1,2, Baiyou Tang1,2

  • 1Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.

Disease Markers
|June 14, 2019
PubMed

Insights

Nuclear factor, erythroid 2-like 3 (NFE2L3) acts as a potential biomarker for colorectal cancer. Its downregulation induces G0/G1 cell cycle arrest by affecting CCND1 and pRb1-ser807/811 expression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • The molecular mechanisms driving colorectal cancer (CRC) development are not fully understood.
  • Identifying reliable biomarkers for CRC is crucial for early detection and targeted therapy.

Purpose of the Study:

  • To identify novel gene expression biomarkers associated with colorectal cancer development.
  • To investigate the functional role of the nuclear factor, erythroid 2-like 3 (NFE2L3) gene in colorectal cancer progression.

Main Methods:

  • Gene expression profiling analysis of 380 CRC patients and 51 healthy controls using R software.
  • Real-time PCR and flow cytometry to validate NFE2L3 expression and its effect on cell cycle progression.
  • Western blot analysis to assess the impact of NFE2L3 inhibition on key cell cycle regulatory proteins (CCND1, pRb1-ser807/811).

Main Results:

  • 1579 upregulated and 3218 downregulated differentially expressed genes (DEGs) were identified in CRC.
  • NFE2L3 was identified as a significantly upregulated DEG, with higher expression in tumor tissues compared to paratumor tissues.
  • Inhibition of NFE2L3 led to G0/G1 cell cycle arrest and downregulation of CCND1 and pRb1-ser807/811 in CRC cell lines.

Conclusions:

  • NFE2L3 is a potential biomarker for colorectal cancer.
  • Downregulation of NFE2L3 induces G0/G1 cell cycle arrest, likely through the modulation of CCND1 and pRb1-ser807/811.
  • Further research into NFE2L3's role could offer new therapeutic strategies for colorectal cancer.

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