The Journal of Experimental Medicine
Accuri Cytometers
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

Published online 12 June 2000.
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Correction (v192,p1389)
Right arrow Alert me when this article is cited
Right arrow Citation Map
Services
Right arrow Email this article
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new content in the JEM
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Matthews, S. A.
Right arrow Articles by Cantrell, D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Matthews, S. A.
Right arrow Articles by Cantrell, D.
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
© The Rockefeller University Press, 0022-1007/2000/6/2075/ $5.00
The Journal of Experimental Medicine, Volume 191, Number 12, June 19, 2000 2075-2082


Original Article

Protein Kinase D: A Selective Target for Antigen Receptors and a Downstream Target for Protein Kinase C in Lymphocytes

Sharon A. Matthewsa, Enrique Rozengurtb, and Doreen Cantrella
a Lymphocyte Activation Laboratory, Imperial Cancer Research Fund, London WC2A 3PX, United Kingdom
b Department of Medicine, University of California Los Angeles School of Medicine and Molecular Biology Institute, Los Angeles, California 90095-1786

Correspondence to: Doreen Cantrell, Lymphocyte Activation Laboratory, Rm. 106, Imperial Cancer Research Fund, 44 Lincoln's Inn Fields, London WC2A 3PX, UK. Tel:44-020-7269-3307 Fax:44-020-7269-2831 E-mail:d.cantrell{at}icrf.icnet.uk.

Protein kinase Cs (PKCs) are activated by antigen receptors in lymphocytes, but little is known about proximal targets for PKCs in antigen receptor–mediated responses. In this report, we define a role for diacylglycerol-regulated PKC isoforms in controlling the activity of the serine/threonine kinase protein kinase D (PKD; also known as PKCµ) in T cells, B cells, and mast cells. Antigen receptor activation of PKD is a rapid and sustained response that can be seen in T cells activated via the T cell antigen receptor, B cells activated via the B cell antigen receptor, and in mast cells triggered via the high-affinity receptor for IgE (Fc{epsilon}R1). Herein, we show that antigen receptor activation of PKD requires the activity of classical/novel PKCs. Moreover, PKC activity is sufficient to bypass the requirement for antigen receptor signals in the induction of PKD activity. These biochemical and genetic studies establish a role for antigen receptor–regulated PKC enzymes in the control of PKD activity. Regulation of PKD activity through upstream PKCs reveals a signaling network that exists between different members of the PKC superfamily of kinases that can operate to amplify and disseminate antigen receptor signals generated at the plasma membrane.

Key Words: antigen receptor, diacylglycerol, protein kinase C, protein kinase D


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:



  Home | Help | Feedback | Subscriptions | Archive | Search
TABLE OF CONTENTS