Immune responses to the capsular polysaccharide of Mycoplasma dispar in calves and mice
| Autor: | Ricardo F. Rosenbusch, Praveen Bansal, D.S. Adegboye |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Male
Dispar Lymphocyte Immunology Cattle Diseases Enzyme-Linked Immunosorbent Assay Lymphocyte Activation medicine.disease_cause complex mixtures Microbiology Mice Mycoplasma Immune system stomatognathic system Immunity Pneumonia Mycoplasma medicine Splenocyte Animals Immunology and Allergy Lymphocytes Mycoplasma dispar Bacterial Capsules Immunity Cellular Mice Inbred BALB C General Veterinary biology Polysaccharides Bacterial General Medicine biology.organism_classification Antibodies Bacterial Immunoglobulin A carbohydrates (lipids) Nasal Mucosa stomatognathic diseases Infectious Diseases medicine.anatomical_structure Immunoglobulin M biology.protein Pectins Cattle Immunization Antibody Bronchoalveolar Lavage Fluid |
| Zdroj: | Comparative Immunology, Microbiology and Infectious Diseases. 18:259-268 |
| ISSN: | 0147-9571 |
| DOI: | 10.1016/0147-9571(95)00008-v |
| Popis: | Humoral and cell-mediated immune responses to the capsular polysaccharide (CPS) of M. dispar and polygalacturonic acid (pGaIU--a structurally similar polysaccharide) were investigated in calves experimentally infected with Mycoplasma dispar and in mice immunized with CPS or pGaIU. Sera, tracheobronchial lavage and nasal fluids, collected before and after infection in calves, were checked for the presence of anti-CPS and anti-pGaIU antibodies. The sera from mice injected with CPS or pGaIU were checked for different classes of anti-CPS and anti-pGaIU antibodies. Peripheral blood lymphocytes from calves and splenic lymphocytes from mice were monitored for specific proliferative responses to CPS and pGaIU. At about 2 weeks post-infection, anti-CPS IgM response in serum, anti-CPS and anti-pGaIU IgM and IgA response in lavage fluid and lymphocyte proliferative response was seen in the calves. Mice immunized with CPS and pGaIU gave exclusively IgM responses. No secondary response was seen in mice immunized with CPS in contrast to mice immunized with pGaIU. Antibodies cross-reactive with pGaIU were present in the sera of CPS-immunized mice but antibodies cross-reactive with CPS were not found in pGaIU-immunized mice. No significant blastogenic response was shown by mouse splenocytes to CPS or pGaIU. |
| Databáze: | OpenAIRE |
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