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Published on: January 11, 2017
Intersectin - many facets of a scaffold protein
Mubashir Mintoo1, Vinodh Rajagopalan1, John P O'Bryan1,2
1Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, U.S.A.
Intersectin (ITSN) proteins regulate crucial cell functions like endocytosis and signaling. Dysregulation of ITSN is linked to cancer and neurodegenerative diseases, highlighting its importance in health and disease.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- Intersectin (ITSN) is a multi-domain scaffold protein family involved in endocytosis, vesicle transport, and signal transduction.
- Two ITSN genes (ITSN1 and ITSN2) encode two major isoforms (ITSN-Long and ITSN-Short) via alternative splicing.
Approach:
- This review synthesizes recent research on ITSN protein functions.
- It examines the role of ITSN in various physiological and pathological processes.
Key Points:
- ITSN proteins are critical for neuronal maintenance and actin cytoskeletal rearrangement.
- Mis-regulation of ITSN is observed in various cancers, including breast, lung, neuroblastomas, and gliomas.
- Altered ITSN expression is implicated in neurodegenerative diseases like Down Syndrome and Alzheimer's disease.
Conclusions:
- ITSN proteins play significant roles in diverse biological processes.
- Understanding ITSN function is crucial for insights into disease mechanisms and potential therapeutic targets.
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