AI Article Synopsis

  • The study aimed to explore how apoptosis (cell death) relates to the expression of the Fas gene in oral squamous cell carcinoma.
  • The researchers used a plasmid to introduce the Fas gene into Tca8113 cells and measured changes in both mRNA and protein levels of Fas, finding increased expressions after transfection.
  • Results indicated that while the rate of Fas protein expression didn't change significantly, its intensity and the rate of apoptosis increased, suggesting a threshold may exist before apoptosis is triggered in these cancer cells.

Article Abstract

Objective: To investigate the relationship of apoptosis and expression of Fas gene in oral squamous cell carcinoma.

Methods: Plasmid including Fas gene was transfected into Tca8113 cell by lipofectamine kit. The expression of Fas mRNA in transfected and non-transfected cell was detected by RT-PCR. The expression of Fas protein and apoptosis index(AI) was assessed by flow cytometry(FCM).

Results: No variation of positive expression rate of Fas protein was found in Fas-transfected and non-transfected Tca8113 (P > 0.05), but the expression of Fas mRNA, intensity of Fas protein and apoptosis index were significantly increased respectively from 0.201 +/- 0.015, 31.02 +/- 4.63, 0.88% +/- 0.16% to 0.399 +/- 0.073, 54.32 +/- 6.38 and 10.21% +/- 1.46%(P < 0.01).

Conclusion: Apoptosis in tongue squamous cell carcinoma was not directly associated with the positive expression rate but intensity of Fas protein. A liminal value might exist before apoptosis in Tca8113 cell could be activated.

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