Immunopathological Response of C57BL/6 and C3H/HeN Mice to Aspergillus fumigatus Antigens (original) (raw)
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Research Articles| August 06 2009
Research Service, Zablocki Veterans Affairs Medical Center, and Departments of Medicine and Pathology, Medical College of Wisconsin, Milwaukee, Wisc., USA
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Research Service, Zablocki Veterans Affairs Medical Center, and Departments of Medicine and Pathology, Medical College of Wisconsin, Milwaukee, Wisc., USA
Search for other works by this author on:
Research Service, Zablocki Veterans Affairs Medical Center, and Departments of Medicine and Pathology, Medical College of Wisconsin, Milwaukee, Wisc., USA
Search for other works by this author on:
Research Service, Zablocki Veterans Affairs Medical Center, and Departments of Medicine and Pathology, Medical College of Wisconsin, Milwaukee, Wisc., USA
Search for other works by this author on:
Research Service, Zablocki Veterans Affairs Medical Center, and Departments of Medicine and Pathology, Medical College of Wisconsin, Milwaukee, Wisc., USA
Search for other works by this author on:
International Archives of Allergy and Applied Immunology (1990) 91 (2): 145–154.
Received:
February 16 1989
Accepted:
November 03 1989
Published Online:
August 06 2009
Abstract
C3H/HeN and C57BL/6 mice were exposed to culture filtrate (CF) and mycelial extracts (ME) of Aspergillus fumigatus (Af) intranasally. Animals received 6, 8 or 10 biweekly doses and were sacrificed 2 weeks after the last dose was administered. Specific antibodies against Af were detected in their sera by biotin-avidin-linked immunosorbent assay (BALISA). Antibodies against Af belonging to all isotypes showed an increase in both strains of mice. A progressive increase in IgG and IgA antibody isotypes against both CF and ME antigens was detected in C3H/HeN mice during the entire experimental period, whereas most antibody levels peaked after the 8th dose and remained steady or decreased slightly in the C57BL/6 strain. Lung lavage studies showed a relative decrease in the number of macrophages and an increase in the number of lymphocytes after the 6th and 8th instillation of Af antigens in both strains of mice. Histology of the lung demonstrated a progressive inflammatory reaction in C57BL/6 mice during the experimental period. On the other hand, the C3H/ HeN mice showed a negligible inflammatory pulmonary reaction. The antibody responses and inflammatory changes detected in the lungs of mice exposed to Af antigens are comparable to allergic bronchopulmonary aspergillosis (ABPA) in humans and hence this model will be of value in understanding the disease mechanism in ABPA and related diseases.
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© 1990 S. Karger AG, Basel
1990
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