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The Mitochondrial Chaperone TRAP1 as a Candidate Target of Oncotherapy
Shulan Xie1, Xuanwei Wang2, Shuyuan Gan1
1Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Abstract:
Tumor necrosis factor receptor-associated protein 1 (TRAP1), a member of the heat shock protein 90 (Hsp90) chaperone family, protects cells against oxidative stress and maintains mitochondrial integrity. To date, numerous studies have focused on understanding the relationship between aberrant TRAP1 expression and tumorigenesis. Mitochondrial TRAP1 is a key regulatory factor involved in metabolic reprogramming in tumor cells that favors the metabolic switch of tumor cells toward the Warburg phenotype. In addition, TRAP1 is involved in dual regulation of the mitochondrial apoptotic pathway and exerts an antiapoptotic effect on tumor cells. Furthermore, TRAP1 is involved in many cellular pathways by disrupting the cell cycle, increasing cell motility, and promoting tumor cell invasion and metastasis. Thus, TRAP1 is a very important therapeutic target, and treatment with TRAP1 inhibitors combined with chemotherapeutic agents may become a new therapeutic strategy for cancer. This review discusses the molecular mechanisms by which TRAP1 regulates tumor progression, considers its role in apoptosis, and summarizes recent advances in the development of selective, targeted TRAP1 and Hsp90 inhibitors.
Insights
Tumor necrosis factor receptor-associated protein 1 (TRAP1) promotes cancer progression by altering cell metabolism and inhibiting apoptosis. Targeting TRAP1 offers a promising therapeutic strategy for cancer treatment.
Area of Science:
- Molecular Biology
- Oncology
- Biochemistry
Background:
- Tumor necrosis factor receptor-associated protein 1 (TRAP1) is a heat shock protein 90 (Hsp90) family member.
- TRAP1 plays a crucial role in cellular protection against oxidative stress and maintaining mitochondrial integrity.
- Aberrant TRAP1 expression is linked to various aspects of tumorigenesis.
Purpose of the Study:
- To review the molecular mechanisms of TRAP1 in regulating tumor progression.
- To examine TRAP1's role in apoptosis.
- To summarize advances in developing targeted TRAP1 and Hsp90 inhibitors for cancer therapy.
Main Methods:
- Literature review of studies on TRAP1 function in cancer.
- Analysis of TRAP1's involvement in metabolic reprogramming (Warburg phenotype).
- Investigation of TRAP1's dual role in mitochondrial apoptosis regulation.
Main Results:
- Mitochondrial TRAP1 drives metabolic reprogramming towards the Warburg phenotype in tumor cells.
- TRAP1 exhibits anti-apoptotic effects, promoting tumor cell survival.
- TRAP1 influences cell cycle, motility, invasion, and metastasis.
Conclusions:
- TRAP1 is a significant therapeutic target in oncology.
- TRAP1 inhibitors combined with chemotherapy represent a potential new cancer treatment strategy.
- Targeted inhibition of TRAP1 and Hsp90 shows promise for cancer therapy.
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