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A Dominant-negative Transgene Defines a Role for P56lck in Thymopoiesis

Overview
Journal EMBO J
Date 1993 Apr 1
PMID 8385609
Citations 60
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Abstract

The lymphocyte-specific protein tyrosine kinase p56lck participates in T cell signaling through functional interactions with components of the T cell antigen receptor complex and the interleukin-2 receptor. Additional insight into the function of p56lck has now been obtained through the generation of transgenic animals expressing high levels of a catalytically inactive form of this kinase (p56lckR273). Mice bearing the lckR273 transgene manifested a severe defect in the production of virtually all T lymphocytes. Those exceptional CD3+ cells that escaped the effects of the lckR273 transgene were confined primarily to the T cell subset that expresses gamma/delta T cell receptors. Remarkably, construction of a dose-response curve for the effects of the lckR273 transgene revealed that developmental arrest of thymocytes occurred at a discrete stage in the normal T cell maturation pathway, corresponding to a point at which thymoblasts ordinarily begin a series of mitotic divisions that result in expansion and maturation. These results suggest that p56lck normally regulates T cell production by metering the replicative potential of immature thymoblasts.

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References
1.
Schlissel M, Baltimore D . Activation of immunoglobulin kappa gene rearrangement correlates with induction of germline kappa gene transcription. Cell. 1989; 58(5):1001-7. DOI: 10.1016/0092-8674(89)90951-3. View

2.
Hemsley A, Arnheim N, Toney M, Cortopassi G, Galas D . A simple method for site-directed mutagenesis using the polymerase chain reaction. Nucleic Acids Res. 1989; 17(16):6545-51. PMC: 318348. DOI: 10.1093/nar/17.16.6545. View

3.
Egerton M, Shortman K, Scollay R . The kinetics of immature murine thymocyte development in vivo. Int Immunol. 1990; 2(6):501-7. DOI: 10.1093/intimm/2.6.501. View

4.
Chalupny N, Ledbetter J, Kavathas P . Association of CD8 with p56lck is required for early T cell signalling events. EMBO J. 1991; 10(5):1201-7. PMC: 452774. DOI: 10.1002/j.1460-2075.1991.tb08061.x. View

5.
Abraham K, Levin S, Marth J, Forbush K, Perlmutter R . Thymic tumorigenesis induced by overexpression of p56lck. Proc Natl Acad Sci U S A. 1991; 88(9):3977-81. PMC: 51576. DOI: 10.1073/pnas.88.9.3977. View