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Related Experiment Video

Updated: Jul 13, 2026

Induction and Micro-CT Imaging of Cerebral Cavernous Malformations in Mouse Model

Induction and Micro-CT Imaging of Cerebral Cavernous Malformations in Mouse Model

Published on: September 4, 2017

CCM3 interacts with CCM2 indicating common pathogenesis for cerebral cavernous malformations.

Katrin Voss¹, Sonja Stahl, Elisa Schleider

¹Department of Human Genetics, University of Würzburg, Biozentrum, Am Hubland, 97074 Würzburg, Germany.

|July 28, 2007

Summary

Cerebral cavernous malformation (CCM) proteins CCM2 and CCM3 interact, forming a complex with STK25. This discovery sheds light on molecular pathways crucial for vascular development and CCM pathogenesis.

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Area of Science:

Molecular biology
Genetics
Biochemistry

Background:

Mutations in CCM1, CCM2, or CCM3 genes cause cerebral cavernous malformations.
The three CCM proteins are suspected to function within common molecular pathways due to similar clinical presentations.

Purpose of the Study:

To investigate the molecular interactions and functional relationships between CCM proteins and their binding partners.
To elucidate the role of CCM3 (PDCD10) and STK25 in signaling pathways relevant to vascular development and CCM pathogenesis.

Main Methods:

Co-precipitation and co-localization assays to study protein interactions.
Yeast-Two hybrid assays to identify binding partners.
In vitro phosphorylation and dephosphorylation assays to determine enzymatic activities.

Main Results:

CCM3 (PDCD10) was found to coprecipitate and colocalize with CCM2.
CCM3 directly binds to serine/threonine kinase 25 (STK25) and Fas-associated phosphatase-1 (FAP-1).
STK25 phosphorylates CCM3, while FAP-1 dephosphorylates it. STK25 also forms a complex with CCM2.

Conclusions:

CCM3 and STK25 are linked to CCM2, suggesting their involvement in common signaling pathways.
These findings provide new insights into the molecular mechanisms underlying cerebral cavernous malformations and vascular development.