Specific ligands of the peripheral benzodiazepine receptor induce apoptosis and cell cycle arrest in human colorectal cancer cells
2001

How specific ligands affect colorectal cancer cells

publication Evidence: moderate

Author Information

Author(s): Maaser K, Höpfner M, Jansen A, Weisinger G, Gavish M, Kozikowski A P, Weizman A, Carayon P, Riecken E-O, Zeitz M, Scherübl H

Primary Institution: Medical Clinic I, Gastroenterology/Infectious Diseases/Rheumatology, Benjamin Franklin University Hospital, Free University of Berlin, Germany

Hypothesis

The study investigates the role of the peripheral benzodiazepine receptor (PBR) in the growth control and apoptosis of colorectal cancer cells.

Conclusion

The study found that specific PBR ligands can inhibit cell proliferation and induce apoptosis in colorectal cancer cells.

Supporting Evidence

  • Colorectal cancers were found to overexpress the peripheral benzodiazepine receptor (PBR).
  • Specific PBR ligands inhibited cell proliferation in a dose-dependent manner.
  • FGIN-1-27 decreased the mitochondrial membrane potential, indicating early apoptosis.
  • PBR ligands increased caspase-3 activity, which is associated with apoptosis.
  • PBR ligands induced cell cycle arrest in the G1/G0 phase.

Takeaway

Certain substances can help stop cancer cells from growing and make them die, which could be useful for treating colorectal cancer.

Methodology

The study used primary cell cultures and human colorectal carcinoma cell lines, along with techniques like RT-PCR, flow cytometry, and confocal microscopy.

Digital Object Identifier (DOI)

10.1054/bjoc.2001.2181

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