PMID- 38059420 OWN - NLM STAT- MEDLINE DCOM- 20240111 LR - 20240325 IS - 1477-9137 (Electronic) IS - 0021-9533 (Linking) VI - 137 IP - 1 DP - 2024 Jan 1 TI - Inactivating negative regulators of cortical branched actin enhances persistence of single cell migration. LID - jcs261332 [pii] LID - 10.1242/jcs.261332 [doi] AB - The Rac1-WAVE-Arp2/3 pathway pushes the plasma membrane by polymerizing branched actin, thereby powering membrane protrusions that mediate cell migration. Here, using knockdown (KD) or knockout (KO), we combine the inactivation of the Arp2/3 inhibitory protein arpin, the Arp2/3 subunit ARPC1A and the WAVE complex subunit CYFIP2, all of which enhance the polymerization of cortical branched actin. Inactivation of the three negative regulators of cortical branched actin increases migration persistence of human breast MCF10A cells and of endodermal cells in the zebrafish embryo, significantly more than any single or double inactivation. In the triple KO cells, but not in triple KD cells, the 'super-migrator' phenotype was associated with a heterogenous downregulation of vimentin (VIM) expression and a lack of coordination in collective behaviors, such as wound healing and acinus morphogenesis. Re-expression of vimentin in triple KO cells largely restored normal persistence of single cell migration, suggesting that vimentin downregulation contributes to the maintenance of the super-migrator phenotype in triple KO cells. Constant excessive production of branched actin at the cell cortex thus commits cells into a motile state through changes in gene expression. CI - (c) 2024. Published by The Company of Biologists Ltd. FAU - Fokin, Artem I AU - Fokin AI AUID- ORCID: 0000-0003-2205-8441 AD - CNRS UMR7654, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France. FAU - Boutillon, Arthur AU - Boutillon A AUID- ORCID: 0000-0002-0968-6059 AD - INSERM U1182, CNRS UMR7645, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France. FAU - James, John AU - James J AD - CNRS UMR7654, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France. FAU - Courtois, Laura AU - Courtois L AD - Pharmacogenomics Unit, Department of Genetics, Institut Curie, 26 rue d'Ulm, 75005 Paris, France. FAU - Vacher, Sophie AU - Vacher S AUID- ORCID: 0000-0002-0042-6023 AD - Pharmacogenomics Unit, Department of Genetics, Institut Curie, 26 rue d'Ulm, 75005 Paris, France. FAU - Simanov, Gleb AU - Simanov G AUID- ORCID: 0009-0004-0912-0946 AD - CNRS UMR7654, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France. FAU - Wang, Yanan AU - Wang Y AUID- ORCID: 0000-0002-8050-3155 AD - CNRS UMR7654, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France. FAU - Polesskaya, Anna AU - Polesskaya A AUID- ORCID: 0000-0002-7835-2335 AD - CNRS UMR7654, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France. FAU - Bieche, Ivan AU - Bieche I AUID- ORCID: 0000-0002-2430-5429 AD - Pharmacogenomics Unit, Department of Genetics, Institut Curie, 26 rue d'Ulm, 75005 Paris, France. FAU - David, Nicolas B AU - David NB AUID- ORCID: 0000-0003-1166-6732 AD - INSERM U1182, CNRS UMR7645, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France. FAU - Gautreau, Alexis M AU - Gautreau AM AUID- ORCID: 0000-0002-2369-4362 AD - CNRS UMR7654, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France. LA - eng GR - ANR-20-CE13-0016/Agence Nationale de la Recherche/ GR - ARC PJA 2021 060003815/Fondation ARC pour la Recherche sur le Cancer/ GR - INCA_11508/Institut National Du Cancer/ GR - Fondation de l'Ecole Polytechnique/ GR - Servier/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20240110 PL - England TA - J Cell Sci JT - Journal of cell science JID - 0052457 RN - 0 (Actins) RN - 0 (Vimentin) RN - 0 (Actin-Related Protein 2-3 Complex) RN - 0 (arpin protein, human) RN - 0 (Carrier Proteins) SB - IM MH - Animals MH - Humans MH - *Actins/metabolism MH - Vimentin/genetics/metabolism MH - *Zebrafish/metabolism MH - Actin-Related Protein 2-3 Complex/genetics/metabolism MH - Cell Movement/physiology MH - Carrier Proteins/metabolism OTO - NOTNLM OT - Arp2/3 OT - Branched actin OT - Cell migration OT - Migration persistence OT - Vimentin COIS- Competing interests The authors declare no competing or financial interests. EDAT- 2023/12/07 06:42 MHDA- 2024/01/11 07:43 CRDT- 2023/12/07 05:43 PHST- 2023/05/13 00:00 [received] PHST- 2023/11/30 00:00 [accepted] PHST- 2024/01/11 07:43 [medline] PHST- 2023/12/07 06:42 [pubmed] PHST- 2023/12/07 05:43 [entrez] AID - 336525 [pii] AID - 10.1242/jcs.261332 [doi] PST - ppublish SO - J Cell Sci. 2024 Jan 1;137(1):jcs261332. doi: 10.1242/jcs.261332. Epub 2024 Jan 10.