TY - JOUR
T1 - Immediate burn wound excision restores antibody synthesis to bacterial antigen
AU - Yamamoto, Hiromasa
AU - Siltharm, Soranit
AU - Deserres, Suzan
AU - Hultman, C. Scott
AU - Meyer, Anthony A.
PY - 1996/6
Y1 - 1996/6
N2 - Although burn wound excision and grafting have been shown to improve patient survival, the effects on immune function, especially humoral immunity, are not completely understood. The purpose of this study was to investigate the effect of immediate and early wound excision on antibody synthesis and B-cell proliferation, specifically, antibody response to PGPS, a ubiquitous bacterial cell wall antigen. Thirty-six male BALB/c mice were divided into four groups. Sham mice received no burn, and remaining mice received a 30% body surface area full-thickness burn. Under general anesthesia, excision and grafting was performed either 6 or 72 hr after injury (BE and G6 and BE and G72 groups). A fourth control group received burn but did not undergo excision and grafting (Burn group). Splenocytes were isolated 8 days postburn and stimulated with 2.5 μg/ml lipopolysaccharide. Anti-PGPS IgM, total IgM, and total IgG levels were determined by ELISA. B- cell proliferation, measured by [3H]-thymidine uptake, was expressed as stimulation index. All B-cell functions were significantly suppressed by burn injury. Immediate excision and grafting (BE and G6) restored anti-PGPS IgM synthesis to normal, while nonspecific B-cell functions did not change significantly. Early excision and grafting (BE and G72), however, failed to significantly improve any B-cell functions. Immediate but not early BE and G restored antibody synthesis to the bacterial cell wall antigen (PGPS). Immediate BE and G may therefore lead to a decrease in bacterial infection after burn injury.
AB - Although burn wound excision and grafting have been shown to improve patient survival, the effects on immune function, especially humoral immunity, are not completely understood. The purpose of this study was to investigate the effect of immediate and early wound excision on antibody synthesis and B-cell proliferation, specifically, antibody response to PGPS, a ubiquitous bacterial cell wall antigen. Thirty-six male BALB/c mice were divided into four groups. Sham mice received no burn, and remaining mice received a 30% body surface area full-thickness burn. Under general anesthesia, excision and grafting was performed either 6 or 72 hr after injury (BE and G6 and BE and G72 groups). A fourth control group received burn but did not undergo excision and grafting (Burn group). Splenocytes were isolated 8 days postburn and stimulated with 2.5 μg/ml lipopolysaccharide. Anti-PGPS IgM, total IgM, and total IgG levels were determined by ELISA. B- cell proliferation, measured by [3H]-thymidine uptake, was expressed as stimulation index. All B-cell functions were significantly suppressed by burn injury. Immediate excision and grafting (BE and G6) restored anti-PGPS IgM synthesis to normal, while nonspecific B-cell functions did not change significantly. Early excision and grafting (BE and G72), however, failed to significantly improve any B-cell functions. Immediate but not early BE and G restored antibody synthesis to the bacterial cell wall antigen (PGPS). Immediate BE and G may therefore lead to a decrease in bacterial infection after burn injury.
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U2 - 10.1006/jsre.1996.0240
DO - 10.1006/jsre.1996.0240
M3 - Article
C2 - 8661190
AN - SCOPUS:0029884913
SN - 0022-4804
VL - 63
SP - 157
EP - 162
JO - Journal of Surgical Research
JF - Journal of Surgical Research
IS - 1
ER -