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Rab22a enhances CD147 recycling and is required for lung cancer cell migration and invasion

Yang Zhou1, Bo Wu1, Jiang-Hua Li1

  • 1National Translational Science Center for Molecular Medicine, Cell Engineering Research Centre and Department of Cell Biology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, PR China.

Experimental Cell Research
|April 24, 2017
PubMed

Insights

Rab22a protein promotes lung cancer spread by recycling CD147. Inhibiting Rab22a or CD147 recycling may offer new lung cancer treatment strategies.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Oncology

Background:

  • Rab22a, a Ras-related small GTPase, regulates clathrin-independent endocytosis (CIE).
  • Rab22a overexpression is observed in various cancers, but its oncogenic role is unclear.
  • Lung cancer cell migration and invasion are critical for metastasis.

Purpose of the Study:

  • To investigate the role of Rab22a in lung cancer.
  • To determine the interaction between Rab22a and CD147.
  • To explore the therapeutic potential of targeting Rab22a-mediated CD147 recycling.

Main Methods:

  • Silencing Rab22a expression in lung cancer cells.
  • Assessing cell migration and invasion assays.
  • Investigating the interaction and effect of Rab22a on CD147 recycling and degradation.

Main Results:

  • Rab22a silencing significantly suppressed lung cancer cell migration and invasion.
  • Rab22a was found to interact with CD147.
  • Knockdown of Rab22a inhibited CD147 recycling and enhanced its degradation.

Conclusions:

  • Rab22a promotes lung cancer cell migration and invasion by enhancing CD147 recycling.
  • Targeting CD147 recycling presents a potential therapeutic strategy for lung cancer treatment.
Keywords:
CD147Lung cancerRab22aVesicle recycling

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