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CD2-associated protein is widely expressed and differentially regulated during embryonic development
Sanna Lehtonen1, Jukka Tienari, Anou Londesborough
1Department of Pathology, Haartman Institute, University of Helsinki, PO Box 21, FIN-00014 Helsinki, Finland, and Helsinki University Central Hospital, FIN-00290 Helsinki, Finland.
Differentiation; Research in Biological Diversity
|January 8, 2008
Summary
CD2-associated protein (CD2AP) shows dynamic, tissue-specific expression during mouse embryonic development. Its regulation during organogenesis suggests a key role for this adapter protein in cellular differentiation and morphogenesis.
Area of Science:
- Developmental Biology
- Cell Biology
- Molecular Biology
Background:
- CD2-associated protein (CD2AP) is an adapter protein crucial for signaling and vesicular trafficking.
- It links plasma membrane proteins to the actin cytoskeleton, with known roles in T cells and podocytes.
- CD2AP is expressed in various adult tissues, but its developmental role is less understood.
Purpose of the Study:
- To investigate the spatio-temporal expression pattern of CD2AP during early mouse embryonic development and organogenesis.
- To understand the role of CD2AP in tissue-specific differentiation and morphogenesis.
Main Methods:
- Immunohistochemistry and in situ hybridization were used to analyze CD2AP expression in mouse embryos at different developmental stages.
- Expression levels were correlated with specific developmental events and cell differentiation processes.
Main Results:
- CD2AP exhibited dynamic, tissue-specific expression during embryogenesis.
- In early embryos, CD2AP localized to cytoplasm and later to intercellular contacts.
- During organogenesis, CD2AP was upregulated in specific cell aggregations and differentiated cell types, while downregulated in others, and consistently expressed in mature cell types like podocytes.
Conclusions:
- The cell-type specific and spatio-temporal regulation of CD2AP during development highlights its significance as a regulatory partner in signaling pathways.
- CD2AP likely plays a pivotal role in fine-tuning growth factor and hormone-induced processes, impacting differentiation and morphogenesis.
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