Inhibition of TRAP1 Accelerates the DNA Damage Response, Activation of the Heat Shock Response and Metabolic Reprogramming in Colon Cancer Cells

Colorectal cancer (CRC) is one of the major causes of cancer-related mortality worldwide. The tumor microenvironment plays a significant role in CRC development, progression and metastasis. Oxidative stress in the colon is a major etiological factor impacting tumor progression. Tumor necrosis factor...

Full description

Saved in:
Bibliographic Details
Published inFrontiers in bioscience (Landmark. Print) Vol. 28; no. 9; p. 227
Main Authors Bhasin, Nobel, Dabral, Prerna, Senavirathna, Lakmini, Pan, Sheng, Chen, Ru
Format Journal Article
LanguageEnglish
Published Singapore IMR Press 26.09.2023
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:Colorectal cancer (CRC) is one of the major causes of cancer-related mortality worldwide. The tumor microenvironment plays a significant role in CRC development, progression and metastasis. Oxidative stress in the colon is a major etiological factor impacting tumor progression. Tumor necrosis factor receptor-associated protein 1 (TRAP1) is a mitochondrial member of the heat shock protein 90 (HSP90) family that is involved in modulating apoptosis in colon cancer cells under oxidative stress. We undertook this study to provide mechanistic insight into the role of TRAP1 under oxidative stress in colon cells. We first assessed the The Cancer Genome Atlas (TCGA) CRC gene expression dataset to evaluate the expression of TRAP1 and its association with oxidative stress and disease progression. We then treated colon HCT116 cells with hydrogen peroxide to induce oxidative stress and with the TRAP1 inhibitor gamitrinib-triphenylphosphonium (GTPP) to inhibit TRAP1. We examined the cellular proteomic landscape using liquid chromatography tandem mass spectrometry (LC-MS/MS) in this context compared to controls. We further examined the impact of treatment on DNA damage and cell survival. TRAP1 expression under oxidative stress is associated with the disease outcomes of colorectal cancer. TRAP1 inhibition under oxidative stress induced metabolic reprogramming and heat shock factor 1 (HSF1)-dependent transactivation. In addition, we also observed enhanced induction of DNA damage and cell death in the cells under oxidative stress and TRAP1 inhibition in comparison to single treatments and the nontreatment control. These findings provide new insights into TRAP1-driven metabolic reprogramming in response to oxidative stress.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
These authors contributed equally.
Conceptualization, RC (Ru Chen), SP (Sheng Pan); methodology, PD (Prerna Dabral), NB (Nobel Bhasin).; software, NB, PD; validation, NB, PD, LS (Lakmini Senavirathna).; formal analysis, NB, PD, LS.; investigation, RC.; resources, RC, SP.; data curation, NB, PD, RC, SP, LS.; writing—original draft preparation, NB, PD.; writing—review and editing, RC, SP, NB, PD, LS.; visualization, NB, PD.; supervision, RC.; project administration, RC.; funding acquisition, RC. All authors have read and agreed to the published version of the manuscript.
Author Contributions
ISSN:2768-6701
2768-6698
DOI:10.31083/j.fbl2809227