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Silencing stomatin-like protein 2 attenuates tumor progression and inflammatory response through repressing CD14 in

Xiaolin Pu1, Changqing Dong2, Wenyu Zhu1

  • 1Department of Oncology, Changzhou Second People's Hospital, Changzhou, Jiangsu Province, People's Republic of China.

Oncotargets and Therapy
|October 2, 2019
PubMed
Abstract

Insights

Stomatin-like protein 2 (SLP-2) silencing inhibits liver cancer progression and inflammation by blocking the LPS/Toll-like receptor 4 pathway. This involves downregulating CD14, reducing pro-inflammatory cytokines, and suppressing malignant cell behaviors.

Area of Science:

  • Oncology
  • Immunology
  • Molecular Biology

Background:

  • Toll-like receptor 4 (TLR4) signaling is implicated in liver cancer inflammation.
  • Stomatin-like protein 2 (SLP-2) is frequently overexpressed in various cancers.

Purpose of the Study:

  • To investigate the role of SLP-2 in TLR4-mediated inflammation and liver cancer progression.
  • To elucidate the molecular mechanisms underlying SLP-2's function in liver cancer.

Main Methods:

  • Gene silencing and overexpression using plasmid transfection.
  • Cell viability, apoptosis, migration, invasion, and angiogenesis assays.
  • Quantification of pro-inflammatory cytokines (TNF-α, IL-6) via ELISA.
  • Analysis of protein and mRNA expression using Western blot and RT-qPCR.

Main Results:

  • Lipopolysaccharide (LPS) enhanced proliferation and cytokine production in SK-Hep1 cells.
  • SLP-2 silencing reduced CD14 and Cdc42 expression, subsequently decreasing TNF-α and IL-6 levels.
  • CD14 overexpression reversed the effects of SLP-2 silencing on apoptosis, proliferation, and malignant behaviors.

Conclusions:

  • SLP-2 silencing attenuates liver cancer inflammation and progression.
  • Inhibition occurs via the LPS/TLR4 pathway by repressing CD14 expression.
Keywords:
apoptosisinflammatory responseliver cancerstomatin-like protein 2Toll-like receptor 4

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