ANXA10 promotes melanoma metastasis by suppressing E3 ligase TRIM41-directed PKD1 degradation

Xuerui Zhang1, Zhaoqing Hu2, Xinran Wang2

  • 1The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China; Changzhou High-Tech Research Institute of Nanjing University and Jiangsu Target Pharma Laboratories Inc., Changzhou, China.

Cancer Letters
|July 29, 2021
PubMed

Insights

Annexin A10 (ANXA10) drives melanoma metastasis by inhibiting SMAD6. Blocking this ANXA10-PKD1-SMAD6 pathway may offer new melanoma treatment strategies.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Melanoma is a highly metastatic cancer requiring targeted therapies.
  • Annexin A10 (ANXA10) is implicated in tumor progression, but its role in melanoma is unclear.

Purpose of the Study:

  • To investigate the role of ANXA10 in melanoma progression and metastasis.
  • To elucidate the molecular mechanisms underlying ANXA10's function in melanoma.

Main Methods:

  • ANXA10 knockout in melanoma cells.
  • Analysis of cell migration and metastatic activity.
  • Investigation of the TGF-β/SMAD pathway, including SMAD6, PKD1, and TRIM41 interactions.
  • Correlation analysis in melanoma cell lines and clinical samples.

Main Results:

  • ANXA10 expression is upregulated and correlates with melanoma progression.
  • ANXA10 knockout significantly reduces melanoma cell migration and metastasis.
  • ANXA10 knockout induces an N- to E-cadherin switch via SMAD6 upregulation.
  • ANXA10 interacts with PKD1, inhibiting TRIM41-mediated PKD1 degradation and thus SMAD6 suppression.

Conclusions:

  • The ANXA10-PKD1-SMAD6 axis plays a critical role in melanoma metastasis.
  • Targeting this axis presents a potential therapeutic strategy for melanoma treatment.

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