Related Experiment Video
Updated: May 17, 2026

Comparative Strategies for Ubiquitination Detection in Mammalian Cell Lysates Using SMAD2/SMURF2 as a Model
Published on: April 17, 2026
The significance of ubiquitin proteasome pathway in cancer development
Azmi Yerlikaya1, Mustafa Yöntem
1Department of Biology, Art and Science Faculty, Dumlupınar University, Kütahya, 43100, Turkey. ayerlikaya@dumlupinar.edu.tr
Abstract:
The ubiquitin proteasome pathway is the most significant intracellular proteolytic pathway. The target proteins are usually ubiquitinated prior to degradation by the proteasome; however, ubiquitin-independent targeting mechanisms have also been reported (e.g., the antizyme-mediated degradation of ornithine decarboxylase). Aberrations in the components of the ubiquitin proteasome pathway are commonly observed in many cancers, and uncontrolled growth of cancer cells can result either from stabilization of oncoproteins (e.g., c-jun) or increased degradation of tumor suppressor proteins (e.g., p53). In addition, due to the pleiotropic functions of the ubiquitin proteasome pathway in cells, there is great interest in developing inhibitors to specifically block this pathway for cancer treatment. This review summarizes the recent literature and several patented inventions on the ubiquitin proteasome pathway with respect to its role in cancer development and treatment.
Insights
The ubiquitin proteasome pathway is crucial for protein degradation and cancer development. Inhibiting this pathway offers a promising strategy for novel cancer therapies.
Area of Science:
- Molecular Biology
- Cellular Biology
- Oncology
Background:
- The ubiquitin proteasome pathway (UPP) is the primary intracellular system for protein degradation.
- Dysregulation of UPP components is implicated in various cancers, affecting oncoproteins and tumor suppressors.
- Alternative ubiquitin-independent degradation routes also exist, adding complexity to cellular protein homeostasis.
Purpose of the Study:
- To review recent literature on the ubiquitin proteasome pathway's role in cancer.
- To summarize patented inventions related to UPP inhibition for cancer treatment.
Main Methods:
- Literature review of scientific publications.
- Analysis of patent databases for UPP-targeting inventions.
Main Results:
- The UPP plays a dual role in cancer by stabilizing oncoproteins and degrading tumor suppressors.
- Inhibitors targeting the UPP are under development for cancer therapy.
- Patented inventions demonstrate significant interest in UPP-targeted cancer treatments.
Conclusions:
- The ubiquitin proteasome pathway is a critical target for cancer therapy.
- Developing specific UPP inhibitors holds promise for effective cancer treatment strategies.
Related Concept Videos
The Proteasome
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3 (ubiquitin...
The Proteasome
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Regulated Protein Degradation
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
The Proteasome Structure
The proteasome is an...

