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Published on: July 25, 2019
Pharmacological Modulation of Ubiquitin-Proteasome Pathways in Oncogenic Signaling
Anmol Sharma1, Heena Khan1, Thakur Gurjeet Singh1
1Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, India.
Abstract:
The ubiquitin-proteasome pathway (UPP) is involved in regulating several biological functions, including cell cycle control, apoptosis, DNA damage response, and apoptosis. It is widely known for its role in degrading abnormal protein substrates and maintaining physiological body functions via ubiquitinating enzymes (E1, E2, E3) and the proteasome. Therefore, aberrant expression in these enzymes results in an altered biological process, including transduction signaling for cell death and survival, resulting in cancer. In this review, an overview of profuse enzymes involved as a pro-oncogenic or progressive growth factor in tumors with their downstream signaling pathways has been discussed. A systematic literature review of PubMed, Medline, Bentham, Scopus, and EMBASE (Elsevier) databases was carried out to understand the nature of the extensive work done on modulation of ubiquitin-proteasome pathways in oncogenic signaling. Various in vitro, in vivo studies demonstrating the involvement of ubiquitin-proteasome systems in varied types of cancers and the downstream signaling pathways involved are also discussed in the current review. Several inhibitors of E1, E2, E3, deubiquitinase enzymes and proteasome have been applied for treating cancer. Some of these drugs have exhibited successful outcomes in in vivo studies on different cancer types, so clinical trials are going on for these inhibitors. This review mainly focuses on certain ubiquitin-proteasome enzymes involved in developing cancers and certain enzymes that can be targeted to treat cancer.
Insights
The ubiquitin-proteasome pathway regulates cell functions; its dysregulation drives cancer. Targeting ubiquitin-proteasome enzymes offers promising therapeutic strategies for various cancers.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- The ubiquitin-proteasome pathway (UPP) is crucial for protein degradation and cellular homeostasis.
- Aberrant UPP function, involving ubiquitinating enzymes (E1, E2, E3) and the proteasome, is linked to cancer development.
- Understanding UPP's role in oncogenic signaling is vital for cancer therapy.
Purpose of the Study:
- To review enzymes in the ubiquitin-proteasome pathway that promote oncogenesis.
- To discuss downstream signaling pathways affected by UPP in cancer.
- To highlight therapeutic strategies targeting UPP components for cancer treatment.
Main Methods:
- Systematic literature review of major scientific databases (PubMed, Medline, Scopus, EMBASE).
- Analysis of in vitro and in vivo studies on UPP involvement in diverse cancers.
- Examination of downstream signaling pathways and therapeutic interventions.
Main Results:
- Identified key ubiquitin-proteasome enzymes acting as pro-oncogenic factors.
- Detailed the involvement of UPP in various cancer types and their signaling pathways.
- Summarized the efficacy of UPP inhibitors in preclinical and clinical settings.
Conclusions:
- The ubiquitin-proteasome pathway is a significant driver of cancer.
- Targeting specific UPP enzymes and proteasome components shows therapeutic potential.
- Further research and clinical trials are warranted for UPP-targeted cancer therapies.
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