Pathways of integrins in the endo-lysosomal system

Molnár, Márton and Sőth, Ármin and Simon‑Vecsei, Zsófia (2022) Pathways of integrins in the endo-lysosomal system. BIOLOGIA FUTURA : A QUARTERLY OF THE HUNGARIAN ACADEMY OF SCIENCES, 73 (2). pp. 171-185. ISSN 2676-8615 (print); 2676-8607 (online)

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Abstract

In this review, we present recent scientific advances about integrin trafficking in the endo-lysosomal system. In the last few years, plenty of new information has emerged about the endo-lysosomal system, integrins, and the mechanism, how exactly the intracellular trafficking of integrins is regulated. We review the internalization and recycling pathways of integrins, and we provide information about the possible ways of lysosomal degradation through the endosomal and autophagic system. The regulation of integrin internalization and recycling proved to be a complex process worth studying. Trafficking of integrins, together with the regulation of their gene expression, defines cellular adhesion and cellular migration through bidirectional signalization and ligand binding. Thus, any malfunction in this system can potentially (but not necessarily) lead to tumorigenesis or metastasis. Hence, extensive examinations of integrins in the endo-lysosomal system raise the possibility to identify potential new medical targets. Furthermore, this knowledge can also serve as a basis for further determination of integrin signaling- and adhesion-related processes.

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