Activation of Leukocyte Function-Associated Antigen-1 on Adult T-cell Leukemia Cells
- 1 January 1999
- journal article
- review article
- Published by Taylor & Francis Ltd in Leukemia & Lymphoma
- Vol. 36 (1-2), 15-23
- https://doi.org/10.3109/10428199909145945
Abstract
Adult T cell leukemia (ATL) is characterized by massive infiltration of circulating ATL cells into a variety of tissues, a finding often associated with poor prognosis. Leukocyte migration from circulation into tissue depends on integrin-mediated adhesion to endothelium and integrins are tightly regulated by several stimuli such as inflammatory chemokines. We have investigated the mechanisms of extravasation of ATL cells and reported the novel features of endogenous chemokine-induced adhesion of ATL cells to the endothelium. We propose that ATL cells adhere to endothelial cells through an adhesion cascade similar to normal leukocytes, and that the chemokines produced by ATL cells are involved in triggering integrin LFA-1 through cytoskeletal rearrangement induced by G-protein-dependent activation of PI 3-kinases in an autocrine manner. Furthermore, the cell surface heparan sulfate proteoglycan particularly on ATL cells is involved in chemokine-dependent autocrine stimulation of integrin-triggering by immobilizing the chemokine on them. These events result in a strong adhesion of ATL cells to the endothelium and spontaneous transendothelial migration.This publication has 47 references indexed in Scilit:
- Control of actin dynamics in cell motilityJournal of Molecular Biology, 1997
- Regulating integrin-mediated adhesion: one more function for PI 3-kinase?Immunology Today, 1996
- Orchestrated Information Transfer Underlying Leukocyte Endothelial InteractionsAnnual Review of Immunology, 1996
- Ins and outs of LFA-1Immunology Today, 1995
- Chemokines regulate cellular polarization and adhesion receptor redistribution during lymphocyte interaction with endothelium and extracellular matrix. Involvement of cAMP signaling pathway.The Journal of cell biology, 1995
- Proteoglycans on endothelial cells present adhesion-inducing cytokines to leukocytesImmunology Today, 1993
- Endothelial cell binding of NAP-1/IL-8: role in neutrophil emigrationImmunology Today, 1992
- Lymphocyte interactions with endothelial cellsImmunology Today, 1992
- Integrins: Versatility, modulation, and signaling in cell adhesionCell, 1992
- Leukocyte-endothelial cell recognition: Three (or more) steps to specificity and diversityCell, 1991