Immunologic Research

, Volume 25, Issue 1, pp 75–95

Interactions of integrins with their partner proteins in leukocyte membranes

Authors

  • Howard R. Petty
    • Department of Biological SciencesWayne State University
    • Division of Hematology/OncologyUniversity of Pennsylvania School of Medicine
    • Division of Hematology/OncologyUniversity of Michigan School of Medicine
  • Randall G. Worth
    • Department of Biological SciencesWayne State University
    • Division of Hematology/OncologyUniversity of Pennsylvania School of Medicine
    • Division of Hematology/OncologyUniversity of Michigan School of Medicine
  • Robert F. ToddIII
    • Department of Biological SciencesWayne State University
    • Division of Hematology/OncologyUniversity of Pennsylvania School of Medicine
    • Division of Hematology/OncologyUniversity of Michigan School of Medicine
Article

DOI: 10.1385/IR:25:1:75

Cite this article as:
Petty, H.R., Worth, R.G. & Todd, R.F. Immunol Res (2002) 25: 75. doi:10.1385/IR:25:1:75

Abstract

Integrins participate in many aspects of immunologic and inflammatory responses, especially those involving cell migration, adherence, and activation. Although leukocyte integrins such as complement receptor type 3 (CR3) are known to carry out certain functions without the intervention of other plasma membrane receptors, many plasma membrane proteins are now known to physically interact and functionally cooperate with integrins. Several of these interactions are highly dynamic within cell membranes; thus integrin-partner protein interactions change during certain physiological processes. This allows an extraordinary adaptability of the system to prime and promote proinflammatory signaling. Since our discovery of the CR 3-FcyRIIIB interaction, the plasma membrane protein repertoire of β1, β2, and β3 integrins has grown to include: FcγRIIA (CD32), uPAR (urokinase-type plasminogen activator receptor; CD87), CD14, voltage-gated K+ channels (Kvl.3), integrin-associated protein (IAP), CD98, tetraspans (TM4SF), insulin receptors, and PDGFβ receptors. In this article we will highlight certain features of this growing field of research, especially with regard to their relevance in immunology and inflammation.

Key Words

IntegrinsCR3Adherence receptorsGPI-linked proteinsUrokinase receptorsFcγ receptorsTetraspansPotassium channelsReceptor-receptor interactions

Copyright information

© Humana Press Inc 2002