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.

Bioorganic Chemistry
|November 16, 2020
PubMed

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.

Related Concept Videos

Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
8.2K
The Intrinsic Apoptotic Pathway01:31

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
7.6K
Inhibition of Cdk Activity02:34

Inhibition of Cdk Activity

The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
5.4K