PAF-mediated Ca2+ influx in human neutrophils occurs via store-operated mechanisms

Autor: C J, Hauser, Z, Fekete, J M, Adams, M, Garced, D H, Livingston, E A, Deitch
Rok vydání: 2001
Předmět:
Zdroj: Journal of leukocyte biology. 69(1)
ISSN: 0741-5400
Popis: Many inflammatory mediators activate neutrophils (PMN) partly by increasing cytosolic calcium concentration ([Ca2+]i). Modulation of PMN [Ca2+]i might therefore be useful in regulating inflammation after shock or sepsis. The hemodynamic effects of traditional Ca2+ channel blockade, however, could endanger unstable patients. Store-operated calcium influx (SOCI) is known now to contribute to Ca2+ flux in "nonexcitable" cells. Therefore, we studied the role of SOCI in human PMN responses to the proinflammatory ligand PAF. PMN [Ca2+]i was studied by spectrofluorometry with and without external calcium. We studied the effects o
Databáze: OpenAIRE