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- Document 0532
- DOCN M9620532
- TI The role of monocyte chemotactic protein-1 (MCP-1) in the recruitment of
- monocytes and CD4+ T cells during a pulmonary Cryptococcus neoformans
- infection.
- DT 9602
- AU Huffnagle GB; Strieter RM; Standiford TJ; McDonald RA; Burdick MD;
- Kunkel SL; Toews GB; Internal Medicine-Pulmonary and Critical Care
- Medicine Division,; University of Michigan Medical Center, Ann Arbor
- 48109, USA.
- SO J Immunol. 1995 Nov 15;155(10):4790-7. Unique Identifier : AIDSLINE
- MED/96062297
- AB Cryptococcus neoformans is acquired via the respiratory tract and is the
- leading cause of fatal mycosis in AIDS. Development of a T cell-mediated
- pulmonary inflammatory response is critical for clearance of this
- pathogen; however, the chemotactic factors that mediate inflammatory
- cell recruitment into the lungs have not been identified. In the present
- study, the bronchoalveolar lavage (BAL) fluid levels of the C-C
- chemokine monocyte chemotactic protein-1 (MCP-1) and the recruitment of
- inflammatory cells both increased following pulmonary infection with C.
- neoformans. The kinetics of MCP-1 production in the lungs correlated
- most closely with the recruitment of CD4+ T cells and
- monocytes/macrophages. Administration of neutralizing anti-MCP-1 Abs in
- vivo reduced the BAL fluid levels of MCP-1, decreased the recruitment of
- both macrophages (> 95%) and CD4+ T cells (76 +/- 9%), and inhibited
- cryptococcal clearance. Although no in vitro neutrophil or B cell
- chemotactic activity has been reported for MCP-1, recruitment of these
- leukocytes was also decreased in anti-MCP-1-treated mice (most likely an
- indirect effect of reducing the number of CD4+ T cells and macrophages).
- Neutralization of MCP-1 also resulted in decreased BAL fluid levels of
- TNF-alpha and IL-6. This is the first demonstration of a role for MCP-1
- in clearance of an infection, and provides direct evidence that MCP-1
- plays a critical role in the T cell-dependent immune response to C.
- neoformans.
- DE Animal Bronchoalveolar Lavage Chemotaxis
- Cryptococcosis/*IMMUNOLOGY/PATHOLOGY CD4-Positive
- T-Lymphocytes/*IMMUNOLOGY/PATHOLOGY Female Immunity, Cellular Lung
- Diseases, Fungal/*IMMUNOLOGY/MICROBIOLOGY/PATHOLOGY Mice Mice, Inbred
- CBA Monocyte Chemoattractant Protein-1/*IMMUNOLOGY
- Monocytes/*IMMUNOLOGY/PATHOLOGY Support, Non-U.S. Gov't Support, U.S.
- Gov't, Non-P.H.S. Support, U.S. Gov't, P.H.S. JOURNAL ARTICLE
-
- SOURCE: National Library of Medicine. NOTICE: This material may be
- protected by Copyright Law (Title 17, U.S.Code).
-
-