TY - JOUR
T1 - Characterization of methylated bovine serum albumin-induced allergic inflammation in rats
AU - Hasegawa, Takashi
AU - Hirasawa, Noriyasu
AU - Watanabe, Masako
AU - Arakawa, Masaaki
AU - Tsurufuji, Susumu
AU - Ohuchi, Kazuo
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 1991
Y1 - 1991
N2 - An air pouch type allergic inflammation in rats was induced using an insoluble cationic protein, methylated bovine serum albumin (MeBSA), as an antigen. Changes in vascular permeability, local tissue edema, histamine contents in the pouch fluid, and number of infiltrated leukocytes and chemotactic activity in the pouch fluid were analyzed during an 8-hour period after injecting the antigen solution into the air pouch of the immunized and nonimmunized rats. Vascular permeability during the first 30-min interval in the immunized rats was higher than that in the nonimmunized rats, reflecting a higher histamine level in the pouch fluid. However, both the increase in vascular permeability and histamine level in the immunized rats in this period were much lower than those induced by a soluble, noncationic antigen, azobenzenearsonate-conjugated acetyl bovine serum albumin. In the MeBSA-induced allergic inflammation model, a second peak of vascular permeability was induced at 2 h, and local tissue edema formation became apparent at 2 h, reaching a plateau at 4 h. A prominent increase in leukocyte infiltration, especially neutrophils, into the pouch fluid was induced at 4 h in accordance with an increase in chemotactic activity in the pouch fluid. These observations indicate that the acute phase of MeBSA-induced allergic inflammation is characterized by a weak anaphylactic response and a prominent neutrophil infiltration.
AB - An air pouch type allergic inflammation in rats was induced using an insoluble cationic protein, methylated bovine serum albumin (MeBSA), as an antigen. Changes in vascular permeability, local tissue edema, histamine contents in the pouch fluid, and number of infiltrated leukocytes and chemotactic activity in the pouch fluid were analyzed during an 8-hour period after injecting the antigen solution into the air pouch of the immunized and nonimmunized rats. Vascular permeability during the first 30-min interval in the immunized rats was higher than that in the nonimmunized rats, reflecting a higher histamine level in the pouch fluid. However, both the increase in vascular permeability and histamine level in the immunized rats in this period were much lower than those induced by a soluble, noncationic antigen, azobenzenearsonate-conjugated acetyl bovine serum albumin. In the MeBSA-induced allergic inflammation model, a second peak of vascular permeability was induced at 2 h, and local tissue edema formation became apparent at 2 h, reaching a plateau at 4 h. A prominent increase in leukocyte infiltration, especially neutrophils, into the pouch fluid was induced at 4 h in accordance with an increase in chemotactic activity in the pouch fluid. These observations indicate that the acute phase of MeBSA-induced allergic inflammation is characterized by a weak anaphylactic response and a prominent neutrophil infiltration.
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U2 - 10.1159/000235451
DO - 10.1159/000235451
M3 - Article
C2 - 1717383
AN - SCOPUS:0025902143
VL - 95
SP - 35
EP - 41
JO - International Archives of Allergy and Immunology
JF - International Archives of Allergy and Immunology
SN - 1018-2438
IS - 1
ER -