Importance of beta2-microglobulin in murine resistance to mucosal and systemic candidiasis
| Autor: | Edward Balish, Jessica Jones-Carson, Thomas F. Warner, F A Vazquez-Torres, R D Wagner |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Cellular immunity
Receptors Antigen T-Cell alpha-beta Immunology Major histocompatibility complex Microbiology Mice Immune system medicine Animals Candida albicans Mice Knockout Innate immune system biology Histocompatibility Antigens Class I Candidiasis biology.organism_classification medicine.disease Disseminated Candidiasis Infectious Diseases Gene Expression Regulation biology.protein Parasitology Systemic candidiasis Antibody beta 2-Microglobulin Research Article |
| Zdroj: | Infection and Immunity. 64:5092-5097 |
| ISSN: | 1098-5522 0019-9567 |
| DOI: | 10.1128/iai.64.12.5092-5097.1996 |
| Popis: | beta2-Microglobulin knockout (beta2m-/-) mice, which lack major histocompatibility complex class I expression and are deficient in CD8alpha/beta T-cell receptor alpha/beta (TcRalpha/beta) T cells, were as resistant to systemic (intravenous) challenge with Candida albicans as immunocompetent controls. Conversely, the beta2m-/- mutant mice were susceptible to systemic candidiasis of endogenous origin despite the induction of C. albicans-specific antibody and cell-mediated immune responses after colonization with a pure culture of C. albicans. Despite some superficial and transient infections of tongues and esophagi (detected by histology) at 1 to 2 weeks after oral colonization and gastric infections (cardia-antrum section) which were observed at 10 to 12 weeks after oral challenge, C. albicans-colonized beta2m-/- mice showed an overall resistance to candidiasis in other mucosal and cutaneous tissues. These data suggest that immune defects that accompany the loss of beta2-microglobulin play an important role in murine resistance to gastric and disseminated candidiasis of endogenous (intestinal tract) origin and that innate immunity and CD4 TcRalpha/beta as well as CD8alpha/alpha TcRalpha/beta (or -gamma/delta) T cells play an important role in resistance to systemic, cutaneous, and nongastric mucosal tissues. |
| Databáze: | OpenAIRE |
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