AUTHOR=Bozal-Basterra Laura , Gonzalez-Santamarta María , Muratore Veronica , Martín-Martín Natalia , Ercilla Amaia , Rodríguez Jose A. , Carracedo Arkaitz , Sutherland James D. , Barrio Rosa 

TITLE=LUZP1 Controls Cell Division, Migration and Invasion Through Regulation of the Actin Cytoskeleton

JOURNAL=Frontiers in Cell and Developmental Biology

VOLUME=9

YEAR=2021

URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2021.624089

DOI=10.3389/fcell.2021.624089

ISSN=2296-634X

ABSTRACT=<p>LUZP1 is a centrosomal and actin cytoskeleton-localizing protein that regulates both ciliogenesis and actin filament bundling. As the cytoskeleton and cilia are implicated in metastasis and tumor suppression, we examined roles for LUZP1 in the context of cancer. Here we show that <italic>LUZP1</italic> exhibits frequent genomic aberrations in cancer, with a predominance of gene deletions. Furthermore, we demonstrate that CRISPR/Cas9-mediated loss of <italic>Luzp1</italic> in mouse fibroblasts promotes cell migration and invasion features, reduces cell viability, and increases cell apoptosis, centriole numbers, and nuclear size while altering the actin cytoskeleton. Loss of <italic>Luzp1</italic> also induced changes to ACTR3 (Actin Related Protein 3, also known as ARP3) and phospho-cofilin ratios, suggesting regulatory roles in actin polymerization, beyond its role in filament bundling. Our results point to an unprecedented role for LUZP1 in the regulation of cancer features through the control of actin cytoskeleton.</p>