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Study on mechanism of down-regulating ikca1 molecule affecting the increment of oral squamous cell carcinoma

Jianmin Liu1, Ying Guo2

  • 1Department of Stomatology, Linyi Central Hospital, Linyi 276400, China.

Cellular and Molecular Biology (Noisy-Le-Grand, France)
|October 12, 2020
PubMed

Insights

Inhibiting the calcium-activated potassium channel (IKCa1) gene expression in oral cancer cells suppressed proliferation and induced apoptosis. Down-regulating IKCa1 shows potential as an anti-cancer strategy for oral squamous cell carcinoma.

Area of Science:

  • Molecular Biology
  • Cancer Research
  • Genetics

Background:

  • Oral squamous cell carcinoma (OSCC) is a prevalent malignancy.
  • The role of calcium-activated potassium channels (IKCa1) in OSCC progression is not fully understood.
  • Identifying novel therapeutic targets is crucial for improving OSCC treatment outcomes.

Purpose of the Study:

  • To investigate the mechanism of IKCa1 gene expression in OSCC Tca-8113 cells.
  • To determine the effect of IKCa1 down-regulation on OSCC cell proliferation and apoptosis.
  • To explore the potential of IKCa1 as a therapeutic target for oral cancer.

Main Methods:

  • RT-PCR was used to detect IKCa1 mRNA expression levels in OSCC (Tca-8113) and normal oral epithelial (HOEC) cell lines.
  • RNA interference was employed to knock down IKCa1 expression in Tca-8113 cells.
  • Cell Counting Kit-8 (CCK-8), flow cytometry, and Western Blot were utilized to assess cell proliferation, cell cycle distribution, apoptosis, and protein expression.

Main Results:

  • IKCa1 was significantly overexpressed in Tca-8113 cells compared to HOEC cells.
  • Knockdown of IKCa1 significantly inhibited Tca-8113 cell proliferation.
  • IKCa1 knockdown led to increased apoptosis, cell cycle arrest, and altered expression of apoptosis-related proteins (e.g., Bax).

Conclusions:

  • Down-regulation of IKCa1 induces cell cycle arrest and apoptosis in OSCC cells.
  • Inhibiting IKCa1 expression demonstrates an anti-cancer effect in oral squamous cell carcinoma.
  • Targeting IKCa1 presents a potential therapeutic strategy for oral cancer treatment.
Keywords:
Cell apoptosisCell proliferationIKCa1Oral squamous cell carcinomaTca-8113 cell

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