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CD1 expression on antigen-presenting cells.

S K Dougan1, A Kaser, R S Blumberg

  • 1Gastroenterology Division, Department of Medicine, Brigham and Women's Hospital,75 Francis St, Thorn 1415, Boston, MA 02115, USA.

Current Topics in Microbiology and Immunology
|June 28, 2007
PubMed
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CD1 proteins present glycolipids to T cells, including NKT cells via CD1d. Understanding CD1 expression in various cells is crucial for its role in immunity and diseases like cancer and autoimmunity.

Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • CD1 proteins present glycolipids to T cells, distinguishing self from microbial antigens.
  • The human CD1 family includes group I (CD1a-CD1e) and group II (CD1d) proteins.
  • Rodents primarily express CD1d, which has broad tissue distribution and traffics to endosomal compartments.

Purpose of the Study:

  • To provide a comprehensive overview of CD1 protein expression and regulation.
  • To highlight the function of CD1 in various immune and non-immune cells.
  • To discuss the implications of CD1 expression in disease states.

Main Methods:

  • Review of existing literature on CD1 protein expression, regulation, and function.
  • Emphasis on CD1's role in thymocytes, B cells, monocytes, macrophages, dendritic cells (DCs), and intestinal epithelial cells (IECs).

Related Experiment Videos

  • Analysis of CD1's involvement in cancer, autoimmunity, and infectious diseases.

    • Main Results:

    • Group I CD1 expression is restricted to thymocytes and professional antigen-presenting cells (APCs).
    • CD1d exhibits wider tissue distribution, including non-hematopoietic cells.
    • Altered CD1 expression is linked to various pathological conditions.

    Conclusions:

    • A thorough understanding of CD1 expression patterns and cellular functions is essential.
    • CD1 plays a significant role in immune surveillance and response.
    • Dysregulation of CD1 is implicated in the pathogenesis of several diseases.