IMMUNOSTIMULATIVE EFFECTS OF REPEATED INHALATION EXPOSURE TO MICROVESICLE-BOUND ENDOTOXIN OF PANTOEA AGGLOMERANS

Jacek Dutkiewicz; Czesława Skórska; Robert Burrell; Agnieszka Szuster-Ciesielska; Jolanta Sitkowska

2/2005 vol. 12

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RESEARCH PAPER

IMMUNOSTIMULATIVE EFFECTS OF REPEATED INHALATION EXPOSURE TO MICROVESICLE-BOUND ENDOTOXIN OF PANTOEA AGGLOMERANS

Jacek Dutkiewicz ¹

Czesława Skórska ¹

Robert Burrell ²

Agnieszka Szuster-Ciesielska ³

Jolanta Sitkowska ¹

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Department of Occupational Biohazards, Institute of Agricultural Medicine, Lublin, Poland

Professor Emeritus, Department of Microbiology and Immunology, West Virginia University, Morgantown, WV, USA

Department of Immunology and Virology, Maria Curie- Skłodowska University, Lublin, Poland

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Jacek Dutkiewicz

Department of Occupational Biohazards, Institute of Agricultural Medicine, Lublin, Poland

Ann Agric Environ Med. 2005;12(2):289-294

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ABSTRACT

Rabbits exposed repeatedly to aerosols of endotoxin-containing microvesicles (ECMV) of the outer membrane of the Pantoea agglomerans strain isolated from airborne grain dust showed a large increase in the concentration of circulating cytokines: total interferon (IFN), interleukin-1α (IL-1 α), and tumor necrosis factor a (TNFα). The increase was significantly higher compared to animals exposed to control saline (p<0.001). Aerosol exposure to ECMV also induced the formation of specific precipitin antibodies and lymphocyte activation. The results indicate strong immunomodulative properties of ECMVs produced in nature by Pantoea agglomerans bacteria, and heavily contaminating organic dusts

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eISSN:	1898-2263
ISSN:	1232-1966

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