Words similar to cytolytic
Example sentences for: cytolytic
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Recent studies have shown that maitotoxin (MTX), a potent cytolytic agent isolated from the dinoflagellate Gambierdiscus toxicus, is an important new molecular tool for the study of oncotic (necrotic) cell death [ 1 2 ] . In a variety of cell types, MTX initiates a cell death cascade that involves a sequence of cellular events essentially identical to those activated by stimulation of purinergic receptors of the P2Z/P2X 7 type.
The large pores activated by MTX have been referred to as cytolytic/oncotic pores, or COP, since their activation ultimately leads to the release of lactate dehydrogenase (LDH), an indication of necrotic or oncotic cell death [ 9].
The involvement of Rho GTPases in regulating integrin dependent events such as leukocyte homotypic aggregation and in chemokine upregulation of integrin-mediated adhesion has recently been identified [ 18 19 ] . ADP-ribosylation of Rho in neutrophils by treatment with C3 not only inhibits cellular locomotion, but augments chemoattractant induced actin polymerization [ 20 21 ] . Moreover, inactivation of Rho in monocytic cells leads to accelerated formation of filopodia, and it has been proposed that Rho is a negative regulator of actin polymerization within this cell type [ 22 ] . Active Rho is also required for normal morphology, motility, and cytolytic activity of IL-2 activated NK cells [ 23 24 ] . We and others have demonstrated the importance of Rho in T lymphocyte activation [ 25 26 ] . Given the role played by Rho in the regulation of actin microfilaments in other cell types, and the indispensability of a functional actin cytoskeleton in lymphocyte motility and activation, it is of importance to study Rho's role in the regulation of T lymphocyte integrin function and maintenance of cytoskeletal organization.
2a), a pore-forming protein produced by cytolytic lymphocytes [ 8 ] in leukemic LGL cells, whereas the oligonucleotide microarray indicated a 103 fold increase (Fig.
NK cytolytic functions disappeared in estradiol-treated mice by 8 weeks.
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