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Nance-Horan Syndrome-like 1 protein negatively regulates Scar/WAVE-Arp2/3 activity and inhibits lamellipodia stability and cell migration

  • Ah-Lai Law
    ,
  • Shamsinar Jalal
    ,
  • Tommy Pallett
    ,
  • Fuad Mosis
    ,
  • Ahmad Guni
    ,
  • Simon Brayford
  • King's College London
    ,
  • The Francis Crick Institute
    ,
  • University of Hamburg
Research Output: Contribution to journal Article Peer-review

Open access

Abstract

Cell migration is important for development and its aberrant regulation contributes to many diseases. The Scar/WAVE complex is essential for Arp2/3 mediated lamellipodia formation during mesenchymal cell migration and several coinciding signals activate it. However, so far, no direct negative regulators are known. Here we identify Nance-Horan Syndrome-like 1 protein (NHSL1) as a direct binding partner of the Scar/WAVE complex, which co-localise at protruding lamellipodia. This interaction is mediated by the Abi SH3 domain and two binding sites in NHSL1. Furthermore, active Rac binds to NHSL1 at two regions that mediate leading edge targeting of NHSL1. Surprisingly, NHSL1 inhibits cell migration through its interaction with the Scar/WAVE complex. Mechanistically, NHSL1 may reduce cell migration efficiency by impeding Arp2/3 activity, as measured in cells using a Arp2/3 FRET-FLIM biosensor, resulting in reduced F-actin density of lamellipodia, and consequently impairing the stability of lamellipodia protrusions.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Article number

5687

Pages from-to (Number of pages)

Pages 5687

Journal (Volume, Issue Number)

Nature Communications (Volume 12, Issue 1)

Publication milestones

  • Accepted/In press - 03/09/2021
  • Published - 28/09/2021

Publication status

Published - 28/09/2021

External Publication IDs

  • handle.net: 10547/625116
  • Scopus: 85116036077
  • PubMed: 34584076

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