Skp2 Inhibitors: Novel Anticancer Strategies
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Updated: Mar 21, 2026

Identifying PD-1/PD-L1 Inhibitors with Surface Plasmon Resonance Technology
Published on: May 2, 2025
1Departments of Chemistry and Advanced Material Science, Pohang University of Science and Technology, Pohang 37673, South Korea.
Abstract:
Skp2 is frequently overexpressed in many human cancers and plays a key role in tumorigenesis. As a component of the SCFSkp2ubiquitin E3 ligase complex, Skp2 is responsible for recruiting substrate proteins for their ubiquitination and subsequent degradation by the 26S proteasome. Thus, Skp2 promotes the cell cycle by down-regulating cell cycle proteins such as the tumor suppressor p27. Alternatively, Skp2 suppresses p53-dependent apoptosis by outcompeting p53 for binding to p300, thereby perturbing p300-mediated p53 acetylation and stabilization. Taken together, inhibition of Skp2 functions (either proteolytic function or non-proteolytic function) is emerging as a promising and novel anti-cancer strategy. In the present review, we highlight the development of Skp2 inhibitors with different mechanisms of action.
Insights
Skp2 overexpression drives cancer by promoting cell cycle progression and inhibiting apoptosis. Inhibiting Skp2 (Skip complex-associated protein 2) offers a novel anti-cancer strategy by targeting its functions.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Skp2 (Skip complex-associated protein 2) is overexpressed in numerous human cancers.
- Skp2 is a key component of the SCFSkp2 ubiquitin E3 ligase complex, crucial for protein degradation.
- Its dysregulation contributes to tumorigenesis by affecting cell cycle and apoptosis pathways.
Purpose of the Study:
- To review the development of Skp2 inhibitors.
- To highlight diverse mechanisms of action for Skp2 inhibition in cancer therapy.
Main Methods:
- Review of scientific literature on Skp2 function and inhibition.
- Analysis of different classes of Skp2 inhibitors and their therapeutic potential.
Main Results:
- Skp2 promotes cancer by down-regulating tumor suppressors like p27, facilitating cell cycle progression.
- Skp2 inhibits apoptosis by interfering with p53 stabilization and acetylation.
- Various strategies targeting Skp2's proteolytic and non-proteolytic functions are under development.
Conclusions:
- Inhibition of Skp2, a critical factor in tumorigenesis, presents a promising anti-cancer therapeutic strategy.
- Targeting Skp2 offers a novel approach to combat various human cancers by restoring cell cycle control and promoting apoptosis.
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