A new strategy for cancer therapy based on a predictive indicator.

Area of Science:

• Molecular biology
• Cancer genetics
• Therapeutic strategies

Background:

• Tumor-associated genes are increasingly analyzed for predictive cancer therapy applications.
• The tumor suppressor gene p53 plays a crucial role in cancer development and response to therapy.
• p53 genotypes are being investigated as potential biomarkers for predicting patient response to various cancer treatments.

Purpose of the Study:

• To explore the potential of p53 genotypes as predictive indicators for radiotherapy, thermotherapy, and chemotherapy.
• To investigate the role of wild-type p53 (wtp53) and mutated p53 (mp53) in therapy-induced apoptosis.
• To evaluate the efficacy of combining p53-targeted gene therapy or chemical chaperones with conventional cancer treatments.

Main Methods:

• Analysis of tumor-associated genes at the molecular level.
• Transfection of wtp53 into p53-null cells to assess sensitivity to radiation and heat therapy.
• Treatment of mp53 cells with glycerol as a chemical chaperone to study apoptosis induction.

Main Results:

• Transfection of wtp53 into p53-null cells enhanced sensitivity to radiation and thermotherapy, stimulating apoptosis.
• Therapy-induced apoptosis was suppressed in mp53 cells.
• Glycerol treatment stimulated apoptosis in mp53 cells, indicating potential therapeutic intervention.

Conclusions:

• p53 genotypes can serve as predictive indicators for radiotherapy, thermotherapy, and chemotherapy.
• Restoring wtp53 function or using chemical chaperones can overcome therapy resistance.
• Combining p53-targeted gene therapy or chemical chaperones offers a promising future strategy to improve cancer treatment outcomes.