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pubmed-article:16151703pubmed:abstractTextA variety of cellular functions are modulated by the physical properties of the cell membrane, and the modification of intracellular transfer, resulting from loss of membrane integrity, may contribute toward setting the cell onto the pathway of apoptosis. Apoptosis in lymphoid cells can be induced in different ways and biochemical modifications occur at an early phase of cell death, while the morphological features of apoptosis are evident later. We previously reported that DMSO is an efficient apoptosis-inducing factor in the human RPMI-8402 pre-T cell line. The aim of the present study was to verify the effect of DMSO on the plasma membrane fluidity, the intracellular calcium concentration and the phosphodiesterase activity in DMSO-induced apoptosis. Our results show a modification of membrane fluidity associated with an increase of intracellular Ca(2+) concentration. Moreover, we demonstrate that these modifications are related to a decrease in the phosphodiesterase (PDE) activity. The correlation between the proceedings of added DMSO and the induction of apoptosis will provide significant information regarding the first part of the apoptotic process.lld:pubmed
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pubmed-article:16151703pubmed:pagination77-84lld:pubmed
pubmed-article:16151703pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:16151703pubmed:year2005lld:pubmed
pubmed-article:16151703pubmed:articleTitleChanges of plasma membrane properties in a human pre-T cell line undergoing apoptosis.lld:pubmed
pubmed-article:16151703pubmed:affiliationDipartimento di Scienze Odontostomatologiche, Università "G. D'Annunzio", Via dei Vestini 32, Chieti 66013, Italy.lld:pubmed
pubmed-article:16151703pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:16151703pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed