Camptothecin, Triptolide, and Apoptosis Inducer Kit Have Differential Effects on Mitochondria in Colorectal Carcinoma Cells

Overview

Journal FEBS Open Bio

Specialty Biology

Date 2022 Mar 23

PMID 35318813

Authors

Veronika Liskova

Marek Kajsik

Barbora Chovancova

Ladislav Roller

Olga Krizanova

Affiliations

Soon will be listed here.

Abstract

Mitochondrial fission and fusion are required for cell survival, and several studies have shown an imbalance between fission and fusion in cancer. High levels of mitochondrial fusion are observed in drug-resistant tumor cells, whereas mitochondrial fission may be important in sensitizing tumor cells to chemotherapy drugs. Based on current knowledge, we hypothesized that different chemotherapeutics might differentially affect mitochondrial dynamics and energy production. Thus, we selected chemotherapeutics with different mechanisms of action (camptothecin, triptolide and apoptosis inducer kit) and investigated their effect on mitochondria in colorectal carcinoma cells. We report that these chemotherapeutics decreased the activity of complex I and reduced the mitochondrial membrane potential, and also decreased the size of mitochondria in the colorectal carcinoma cell lines DLD1 and HCT-116. Treatment with camptothecin, triptolide and/or apoptosis inducer kit results in differential effects of fission on apoptosis in these cells. Our results suggest that fission is an important process in apoptosis induced by chemotherapeutics.

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