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Evaluation of Substrate Ubiquitylation by E3 Ubiquitin-ligase in Mammalian Cell Lysates
Published on: May 10, 2022
The ubiquitin-proteasome pathway an emerging anticancer strategy for therapeutics: a patent analysis
Chakresh K Jain1, Shivam Arora, Aparna Khanna
1Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector-62, Noida- 201307, Uttar Pradesh, India. ckj522@yahoo.com.
Abstract:
The degradation of intracellular proteins is targeted by ubiquitin via non-lysosomal proteolytic pathway in the cell system. These ubiquitin molecules have been found to be conserved from yeast to humans. Ubiquitin proteasome machinery utilises ATP and other mechanisms for degrading proteins of cytosol as well as nucleus. This process of ubiquitination is regulated by activating the E3 enzyme ligase, involved in phosphorylation. In humans, proteins which regulate the cell cycle are controlled by ubiquitin; therefore the ubiquitin-proteasome pathway can be targeted for novel anti-cancer strategies. Dysregulation of the components of the ubiquitin system has been linked to many diseases like cancer and inflammation. The primary triggering mechanism (apoptosis) of these diseases can also be induced when TNF-related apoptosis-inducing ligand (TRAIL) binds to its specific receptor DR4 and DR5. In this review, the emerging prospects and importance of ubiquitin proteasome pathway as an evolving anticancer strategy have been discussed. Current challenges in the field of drug discovery have also been discussed on the basis of recent patents on cancer diagnosis and therapeutics.
Insights
The ubiquitin-proteasome pathway degrades intracellular proteins and is crucial for cell cycle regulation. Targeting this pathway offers promising new anti-cancer strategies, with recent patents highlighting its therapeutic potential.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- The ubiquitin-proteasome pathway (UPP) is a conserved, ATP-dependent non-lysosomal proteolytic system essential for cellular protein homeostasis.
- Ubiquitination, regulated by E3 ligases and phosphorylation, targets proteins in the cytosol and nucleus for degradation.
- Dysregulation of the UPP is implicated in diseases such as cancer and inflammation.
Purpose of the Study:
- To review the emerging prospects and importance of the ubiquitin-proteasome pathway as an evolving anticancer strategy.
- To discuss current challenges in drug discovery related to UPP-targeted cancer therapeutics.
Main Methods:
- Literature review focusing on the ubiquitin-proteasome pathway's role in cancer.
- Analysis of recent patents concerning cancer diagnosis and therapeutics.
- Discussion of apoptosis induction mechanisms, including TNF-related apoptosis-inducing ligand (TRAIL) signaling.
Main Results:
- The UPP plays a critical role in regulating cell cycle proteins, making it a viable target for anti-cancer therapies.
- Dysfunction in the UPP is linked to oncogenesis and inflammatory processes.
- TRAIL-receptor interactions can trigger apoptosis, a key mechanism in cancer cell death.
Conclusions:
- The ubiquitin-proteasome pathway represents a significant and evolving target for novel anti-cancer strategies.
- Addressing challenges in drug discovery for UPP-targeted therapies is crucial for advancing cancer treatment.
- Understanding UPP regulation and its link to apoptosis is key for developing effective cancer diagnostics and therapeutics.
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