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- W2051225691 abstract "Cutaneous burn injury-induced T lymphocyte suppression is a well-known phenomenon. In this study, we evaluated the effect of treatment of burn rats with pentoxifylline (PTX) on the burn-induced suppression of T lymphocytes. Anesthetized rats were subjected to 30% total body surface area burn by exposing skin to 95 degrees C water for 10 s. T lymphocytes were isolated from sham and burn rats with or without PTX treatment (120 mg/kg, ip). T cell proliferation and interleukin (IL)-2 production in response to T cell mitogen concanavalin A was measured using 3 H-thymidine uptake and enzyme-linked immunosorbent assay, respectively. P59 fyn autophosphorylation and its kinase activity was determined using in vitro kinase assay. In addition, T lymphocyte Ca2+ signaling was assessed using Ca2+ imaging technique. Two days after injury, there was a significant decrease in mesenteric lymph node T cell proliferation and IL-2 production in burn injured rats compared with those obtained from sham-injured rats. This decrease in T cell proliferation and IL-2 production in burn-injured rats was accompanied by a significant suppression in both P59 autophophorylation and kinase activity as well as Ca2+ signaling. Treatment of burn-injured rats with PTX produced a near complete recovery of T cell proliferation and IL-2 production. Furthermore, PTX treatment also prevented the burn-mediated suppression in P59fyn and kinase activity as well as restored Ca2+ signaling similar to those observed in sham injured rats. These findings altogether suggested that PTX treatment attenuate T cell suppression in burn-injured rats and that the effects of PTX are mediated via modulating P59 fyn and Ca2+ signaling." @default.
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- W2051225691 date "2003-12-01" @default.
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- W2051225691 title "Effects of Pentoxyfylline on Mesenteric Lymph Node T-Cells in a Rat Model of Thermal Injury" @default.
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- W2051225691 doi "https://doi.org/10.1097/01.shk.0000098103.41147.54" @default.
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