Telmisartan inhibits human urological cancer cell growth through early apoptosis

Masahide Matsuyama1, Kiyoaki Funao, Katsuyuki Kuratsukuri

  • 1Department of Transplantation and Clinical Immunology, Claude Bernard University of Lyon and Lyon Hospitals, Lyon, France ;

Insights

Telmisartan, an angiotensin II receptor blocker (ARB), significantly inhibits urological cancer cell growth and induces apoptosis. Other ARBs did not show similar anti-cancer effects, highlighting telmisartan

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Angiotensin II receptor blockers (ARBs) are established antihypertensive drugs.
  • Emerging evidence suggests ARBs may possess anti-cancer properties.
  • Telmisartan, an ARB, is known to activate peroxisome proliferator-activated receptor (PPAR)-γ.

Purpose of the Study:

  • To investigate the anti-proliferative effects of telmisartan and other ARBs on human urological cancer cell lines.
  • To determine if telmisartan's anti-cancer activity is mediated through PPAR-γ.
  • To evaluate telmisartan as a potential therapeutic agent for urological cancers.

Main Methods:

  • MTT assay to assess cell proliferation inhibition.
  • Flow cytometry and Hoechst staining to detect apoptosis and DNA fragmentation.
  • Testing of telmisartan, candesartan, valsartan, irbesartan, and losartan on renal cell carcinoma, bladder cancer, prostate cancer, and testicular cancer cell lines.

Main Results:

  • Telmisartan demonstrated significant, dose- and time-dependent inhibition of urological cancer cell proliferation.
  • Treatment with telmisartan induced early apoptosis and DNA fragmentation in cancer cells.
  • Other tested ARBs (candesartan, valsartan, irbesartan, losartan) did not affect urological cancer cell growth.

Conclusions:

  • Telmisartan exhibits potent anti-proliferative effects on human urological cancer cells, likely via PPAR-γ activation.
  • Telmisartan represents a promising candidate for the prevention and treatment of urological cancers.
  • Selective anti-cancer activity of telmisartan distinguishes it from other ARBs.

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