CD147 Is Involved in Tanshinone IIA-Induced Reprogramming of the Warburg Effect in Prostate Cancer Cells

Area of Science:

• Biochemistry
• Cancer Metabolism
• Pharmacology

Background:

• Cancer cells exhibit aerobic glycolysis, known as the Warburg effect.
• Tan IIA, derived from Salvia miltiorrhiza, shows antitumor properties.
• Its specific effects on prostate cancer metabolism remain unclear.

Purpose of the Study:

• To investigate the impact of Tan IIA on prostate cancer cell proliferation, apoptosis, and glucose metabolism.
• To elucidate the molecular mechanisms underlying Tan IIA's effects, focusing on the AKT/mTOR/HIF-1α pathway and CD147.
• To assess Tan IIA's potential as an antitumor agent targeting cancer-specific metabolic dependencies.

Main Methods:

• Assessed prostate cancer cell proliferation and apoptosis.
• Measured glycolysis-related metabolic changes and key enzyme expression.
• Investigated the AKT/mTOR/HIF-1α signaling pathway and CD147's role.

Main Results:

• Tan IIA suppressed prostate cancer cell proliferation and induced apoptosis by inhibiting glucose metabolism.
• Downregulated hypoxia-inducible factor-1α (HIF-1α) via blockade of the AKT/mTOR signaling cascade.
• Reduced expression of glucose transporter 1 (GLUT1), pyruvate kinase M2 (PKM2), and hexokinase 2 (HK2); CD147 silencing potentiated Tan IIA's glycolytic inhibition.

Conclusions:

• Tan IIA disrupts the glycolytic pathway in prostate cancer cells by suppressing the AKT/mTOR/HIF-1α axis.
• Potential mechanism involves CD147 modulation.
• Tan IIA is a promising antitumor compound targeting prostate cancer's metabolic vulnerabilities for preclinical investigation.