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WDFY2 restrains matrix metalloproteinase secretion and cell invasion by controlling VAMP3-dependent recycling.

Nat Commun. 2019 Jun 28;10(1):2850
Marte Sneeggen 1 , Nina Marie Pedersen 1 , Coen Campsteijn 2 , Ellen Margrethe Haugsten 3 , Harald Stenmark 4 , Kay Oliver Schink 5
Marte Sneeggen 1 , Nina Marie Pedersen 1 , Coen Campsteijn 2 , Ellen Margrethe Haugsten 3 , Harald Stenmark 4 , Kay Oliver Schink 5
+ et al

[No authors listed]

Author information
  • 1 Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, N-0379, Oslo, Norway.
  • 2 Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, 0317, Oslo, Norway.
  • 3 Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, Oslo, N-0379, Norway.
  • 4 Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, N-0379, Oslo, Norway. h.a.stenmark@medisin.uio.no.
  • 5 Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, N-0379, Oslo, Norway. Kay.Oliver.Schink@rr-research.no.

摘要


Cancer cells secrete matrix metalloproteinases to remodel the extracellular matrix, which enables them to overcome tissue barriers and form metastases. The membrane-bound matrix metalloproteinase MT1-MMP (MMP14) is internalized by endocytosis and recycled in endosomal compartments. It is largely unknown how endosomal sorting and recycling of MT1-MMP are controlled. Here, we show that the endosomal protein WDFY2 controls the recycling of MT1-MMP. WDFY2 localizes to endosomal tubules by binding to membranes enriched in phosphatidylinositol 3-phosphate (PtdIns3P). We identify the v-SNARE VAMP3 as an interaction partner of WDFY2. WDFY2 knockout causes a strong redistribution of VAMP3 into small vesicles near the plasma membrane. This is accompanied by increased, VAMP3-dependent secretion of MT1-MMP, enhanced degradation of extracellular matrix, and increased cell invasion. WDFY2 is frequently lost in metastatic cancers, most predominantly in ovarian and prostate cancer. We propose that WDFY2 acts as a tumor suppressor by serving as a gatekeeper for VAMP3 recycling.