Abstract |
Leishmania tropica causes a lethal visceral disease in highly susceptible BALB/c mice, with many immunopathologic features resembling those in human kala-azar. The responses to thymus-independent antigens of Type 1 and 2 (TI-1, TI-2) were compared in infected mice of susceptible BALB/c and resistant C57BL/6 strains at various times after infection. The infected BALB/c mice had an augmented response to both types of antigens at 45 days after infection. Later (day 76), the response to trinitrophenylated lipopolysaccharide ( TNP-LPS, a TI-1 antigen) was diminished but that to dinitrophenylated Ficoll ( DNP-Ficoll, a TI-2 antigen) remained statistically above the response of uninfected mice. The response of the resistant strain to either antigen was not modified as a result of the infection. Both strains showed significant polyclonal activation, which was considerably greater in the BALB/c than in the C57BL/6 mice. The observations presented here are in contrast to the widely held belief that a generalized nonspecific immunosuppression occurs in L. tropica infected BALB/c mice.
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Authors | J H Colle, P Truffa-Bachi, L Chedid, F Modabber |
Journal | Journal of immunology (Baltimore, Md. : 1950)
(J Immunol)
Vol. 131
Issue 3
Pg. 1492-5
(Sep 1983)
ISSN: 0022-1767 [Print] United States |
PMID | 6350457
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Antigens, T-Independent
- DNP-Ficoll
- Trinitrobenzenes
- Ficoll
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Topics |
- Animals
- Antibody Formation
- Antibody-Producing Cells
(immunology)
- Antigens, T-Independent
(administration & dosage)
- B-Lymphocytes
(immunology)
- Female
- Ficoll
(analogs & derivatives, immunology)
- Hemolytic Plaque Technique
- Kinetics
- Leishmaniasis, Visceral
(immunology)
- Lymphocyte Activation
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Trinitrobenzenes
(immunology)
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