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Updated: Aug 17, 2026

In vivo and in vitro Studies of Adaptor-clathrin Interaction
Published on: January 26, 2011
Oncogenic breakdowns in endocytic adaptor proteins
Nicola Crosetto1, Ritva Tikkanen, Ivan Dikic
1Institute of Biochemistry II, Goethe University Hospital, Theodor-Stern-Kai 7, D-60590, Frankfurt (Main), Germany.
Abstract:
Endocytosis is a versatile tool to regulate the intensity, localization, half-life and function of signaling complexes (signalosomes) that form in cells upon binding of growth factors, cytokines and morphogens to their cognate receptors. Endocytic adaptors are non-catalytic proteins that assemble effectors and structural components of the endocytic machinery around the trafficking cargo and serve as scaffolds for signalosomes, which in turn modify their location and activity by various post-translational modifications. We discuss how breakdowns in the function of endocytic adaptors might facilitate impairment of tissue homeostasis and consequent tumor development.
Insights
Cellular endocytosis uses endocytic adaptors to control signaling complexes. Disruptions in these adaptors can lead to tissue imbalance and tumor formation, highlighting their critical role in cell regulation.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Endocytosis regulates signaling complexes (signalosomes) formed by receptor-ligand interactions.
- Endocytic adaptors scaffold signalosomes and mediate cargo trafficking.
- Post-translational modifications influence signalosome activity and localization.
Purpose of the Study:
- To explore the role of endocytic adaptors in cellular signaling.
- To discuss the implications of endocytic adaptor dysfunction in disease.
Main Methods:
- Literature review and synthesis of existing research on endocytosis and signaling.
- Analysis of the structural and functional roles of endocytic adaptors.
- Discussion of the link between endocytic adaptor function and tissue homeostasis.
Main Results:
- Endocytic adaptors are crucial for modulating signalosome intensity, localization, and half-life.
- These adaptors integrate signaling pathways with the endocytic machinery.
- Dysfunctional endocytic adaptors are implicated in impaired tissue homeostasis.
Conclusions:
- Endocytic adaptors are key regulators of cellular signaling pathways.
- Breakdowns in endocytic adaptor function contribute to the development of diseases like cancer.
- Understanding endocytic adaptor mechanisms is vital for therapeutic strategies.
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