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Updated: Nov 30, 2025

Patient Derived Cell Culture and Isolation of CD133+ Putative Cancer Stem Cells from Melanoma
Published on: March 13, 2013
Targeted degradation of CD147 proteins in melanoma
Zhe Zhou1, Jing Long1, Yuan Wang2
1The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Abstract:
CD147 is a transmembrane glycoprotein and a member of immunoglobulin superfamily, is strongly expressed in melanoma cells. CD147 has a pivotal role in tumor development. Therefore, it is a potential drug target for melanoma. In this article, we report the discovery of the first CD147 protein proteolysis targeting chimeras (PROTACs) derived from the natural product pseudolaric acid B (PAB). The representative compound 6a effectively induced degradation of CD147 and inhibited melanoma cells in vitro and in vivo. 6a could be used as the novel type of anticancer agent or as a part of the molecular biology research toolkit used in the gain-of-function study of the dynamic roles of CD147 in cancer networks.
Insights
Researchers discovered novel CD147 protein proteolysis targeting chimeras (PROTACs) from pseudolaric acid B. The compound 6a effectively degraded CD147, inhibiting melanoma cells, offering a new anticancer agent or research tool.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- CD147 is a transmembrane glycoprotein overexpressed in melanoma.
- CD147 plays a critical role in tumor progression, making it a viable therapeutic target.
- Targeting CD147 degradation presents a promising strategy for melanoma treatment.
Purpose of the Study:
- To discover and characterize the first CD147 protein proteolysis targeting chimeras (PROTACs).
- To evaluate the efficacy of novel CD147-targeting PROTACs in inhibiting melanoma.
- To explore the potential of these PROTACs as anticancer agents or research tools.
Main Methods:
- Synthesis of pseudolaric acid B-derived PROTACs.
- In vitro and in vivo evaluation of compound 6a's anti-melanoma activity.
- Assessment of CD147 degradation induced by compound 6a.
Main Results:
- Discovery of the first CD147 PROTACs.
- Compound 6a demonstrated potent CD147 degradation.
- Significant inhibition of melanoma cell proliferation in vitro and in vivo was observed.
- Compound 6a showed promise as a novel anticancer therapeutic.
Conclusions:
- Novel CD147 PROTACs were successfully developed.
- Compound 6a effectively targets CD147 for degradation and exhibits anti-melanoma activity.
- These findings support the development of CD147-targeting PROTACs as a new class of anticancer agents.
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