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SOX10-dependent CMTM7 expression inhibits cell proliferation and tumor growth in gastric carcinoma

Yongdong Jin1, Xianpeng Qin2, Guiqing Jia2

  • 1Department of Medical Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.

Biochemical and Biophysical Research Communications
|November 6, 2018
PubMed

Insights

CMTM7 acts as a tumor suppressor in gastric cancer, with its expression down-regulated alongside SOX10. SOX10 regulates CMTM7, impacting gastric cancer cell proliferation and tumor growth.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • The CMTM family plays critical roles in cancer development.
  • CMTM7 is downregulated in some digestive tumors, but its role in gastric cancer is unclear.

Purpose of the Study:

  • To investigate the expression patterns and pathological role of CMTM7 in gastric cancer.
  • To explore the regulatory relationship between SOX10 and CMTM7 in gastric cancer.

Main Methods:

  • Analysis of CMTM7 and SOX10 expression in gastric cancer tissues.
  • Bioinformatics analysis and luciferase assays to determine SOX10's regulatory role.
  • In vitro and in vivo experiments assessing the impact of CMTM7 silencing and SOX10 overexpression on gastric cancer cells.

Main Results:

  • Both CMTM7 and SOX10 were significantly downregulated in gastric cancer tissues and correlated positively.
  • SOX10 was identified as a transcriptional regulator of CMTM7 in gastric cancer.
  • Silencing CMTM7 increased gastric cancer cell proliferation and tumorigenesis, while SOX10 overexpression inhibited these processes.

Conclusions:

  • CMTM7 functions as a tumor suppressor, downregulated in gastric cancer.
  • SOX10 regulates gastric cancer proliferation and tumor formation by modulating CMTM7 expression, highlighting a novel regulatory pathway.
Keywords:
CMTM7Cell proliferationGastric carcinomaSOX10Tumor growth

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