Coxsackievirus and Adenovirus Receptor (CXADR): Recent Findings and Its Role and Regulation in Spermatogenesis
1School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Abstract:
Coxsackievirus and adenovirus receptor (CXADR) belongs to immunoglobulin superfamily of cell adhesion molecules. It expresses in most tissues, but displays unique and indispensable functions in some tissues such as heart and testis. CXADR is a multifunctional protein that can serve as a viral receptor, a junction structural protein and a signalling molecule. Thus, it exerts a wide range of functions such as facilitating leukocyte transmigration, regulating barrier function and cell adhesion, promoting EMT transition, and mediating spermatogenesis. This review aims to provide an overview and highlights some recent findings on CXADR in the field with emphasis on studies in the testis, upon which future studies can be designed to delineate the roles and regulation of CXADR in spermatogenesis.
Insights
The Coxsackievirus and adenovirus receptor (CXADR) is vital for cell adhesion and signaling, with crucial roles in the heart and testis. This review highlights CXADR
Area of Science:
- Cell Biology
- Molecular Biology
- Reproductive Biology
Background:
- The Coxsackievirus and adenovirus receptor (CXADR), a member of the immunoglobulin superfamily, is expressed broadly.
- CXADR plays critical roles in specialized tissues like the heart and testis.
- It functions as a viral receptor, structural protein, and signaling molecule.
Purpose of the Study:
- To review the multifaceted roles of CXADR.
- To emphasize recent findings concerning CXADR in spermatogenesis.
- To guide future research on CXADR's function and regulation in the testis.
Main Methods:
- Literature review of existing studies on CXADR.
- Analysis of CXADR's functions including viral binding, cell adhesion, and signaling.
- Focus on experimental evidence related to testicular functions.
Main Results:
- CXADR facilitates leukocyte transmigration and regulates barrier function.
- It is involved in cell adhesion, epithelial-mesenchymal transition (EMT), and spermatogenesis.
- Unique indispensable functions of CXADR are noted in the heart and testis.
Conclusions:
- CXADR is a multifunctional protein with significant roles in various physiological processes.
- Its indispensable functions in the testis highlight its importance in spermatogenesis.
- Further research is needed to fully elucidate CXADR's roles and regulatory mechanisms in male reproduction.
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