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  • Title: Taenia taeniaeformis: early inflammatory response around developing metacestodes in the liver of resistant and susceptible mice I. Identification of leukocyte response with monoclonal antibodies.
    Author: Letonja T, Hammerberg C.
    Journal: J Parasitol; 1987 Oct; 73(5):962-70. PubMed ID: 3309243.
    Abstract:
    Female BALB/cJ (resistant), C3H/HeJ (intermediate resistant), and C3H/HeDub (susceptible) inbred mice, 4-5 wk old, were infected with Taenia taeniaeformis. Liver sections were stained by an immunoperoxidase technique (avidin-biotin complex, ABC) for the differentiation antigens Lyt-1, Lyt-2, Mac-1, Mac-2, Mac-3, and B220. Binding of ABC to the cytoplasm of hepatocytes around the developing parasite was observed at 4 days postinfection (PI) in all 3 strains of mice, persisting in BALB/cJ and C3H/HeJ liver sections at 5 and 6 days PI, suggesting the presence of high concentrations of biotin, a fatty acid synthesis mediator. Two cell populations were labeled with B220 monoclonal antibodies: lymphocytes and polymorphonuclear (PMN) cells. At 4 days PI the number of labeled PMN cells peaked in infected C3H/HeJ and BALB/cJ mice; however a low number of PMN cells were labeled in infected C3H/HeDub mice. Few lymphocytes bound the B220 antibody in either BALB/cJ, C3H/HeJ, or C3H/HeDub infected mice. The number of Mac-1+ cells detected in infected C3H/HeJ and BALB/cJ liver sections were similar whereas fewer Mac-1+ cells were present in infected C3H/HeDub mice. Mac-2+ cells appeared in high numbers around the growing parasite at 5 and 6 days PI in the liver of C3H/HeDub mice, but not in the liver of BALB/cJ mice. Mac-3+ cells followed a similar pattern to that of the cell population defined by Mac-2. Few Lyt-1+ and Lyt-2+ cells were detected around the parasite site in the 3 strains of mice.(ABSTRACT TRUNCATED AT 250 WORDS)
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