Characterization of the role of RILP in cell migration

Eur J Histochem. 2017 May 31;61(2):2783. doi: 10.4081/ejh.2017.2783.

Abstract

Rab-interacting lysosomal protein (RILP) is a regulator of late stages of endocytosis. Recent work proved that depletion of RILP promotes migration of breast cancer cells in wound healing assay, whereas its overexpression influences re-arrangements of actin cytoskeleton. Here, we further characterized the role of RILP in cell migration by analyzing several aspects of this process. We showed that RILP is fundamental also for migration of lung cancer cells regulating cell velocity. RILP silencing did not affect Golgi apparatus nor microtubules reorientation during migration. However, both RILP over-expression and expression of its mutated form, RILP-C33, impair cell adhesion and spreading. In conclusion, our results demonstrate that RILP has important regulatory roles in cell motility affecting migration velocity but also in cell adhesion and cell spreading.

MeSH terms

  • Adaptor Proteins, Signal Transducing / genetics
  • Adaptor Proteins, Signal Transducing / metabolism*
  • Biological Assay
  • Blotting, Western
  • Cell Adhesion / genetics
  • Cell Line, Tumor
  • Cell Movement / genetics*
  • Gene Silencing
  • Humans
  • Mutation
  • RNA, Small Interfering / genetics
  • Up-Regulation

Substances

  • Adaptor Proteins, Signal Transducing
  • RILP protein, human
  • RNA, Small Interfering

Grants and funding

Funding: this work was supported by AIRC (Associazione Italiana per la Ricerca sul Cancro, Investigator Grant 2016 N. 19068 to CB), Telethon Italy (Grant GGP16037 to CB), the Norwegian Cancer Society (grants 5760850 to CP and 4604944 to OB), and the Research Council of Norway (grants 239903 to CP, 230779 to OB, and through its Centre of Excellence funding scheme, project number 179573).