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Curr Opin Immunol. 2003 Jun;15(3):261-8.

Cytoskeletal remodeling in lymphocyte activation.

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Washington University School of Medicine, Department of Pathology and Immunology, 660 Euclid Avenue, Campus Box 8118, St Louis, MO 63110, USA.


The formerly distinct fields of lymphocyte signal transduction and cytoskeletal remodeling have recently become linked, as proteins involved in transducing signals downstream of lymphocyte antigen receptors have also been implicated in actin cytoskeleton remodeling, microtubule dynamics and regulation of cell polarity. These discoveries have fuelled interest in understanding both the role of the actin cytoskeleton as an integral component of lymphocyte activation and the interplay between lymphoid cell-cell contact sites (immunological synapse), retractile pole structures (uropod, distal pole complex), and Rho-family GTPases (Rac, Rho, Cdc42), their upstream activators (Dbl-family guanine nucleotide exchange factors) and their downstream effectors (WASp, Arp2/3, ADAP). To understand how these complex regulatory networks are wired, a new breed of computational biologists uses mathematical language to reproduce and simulate signaling circuits 'in silico'.

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