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The interrelationship between CD14 a...

Sohn, Eun J.

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The interrelationship between CD14 and LPS during mastitis: Release of soluble CD14 and cytokines by bovine PMN following activation with LPS.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The interrelationship between CD14 and LPS during mastitis: Release of soluble CD14 and cytokines by bovine PMN following activation with LPS./
作者:	Sohn, Eun J.
面頁冊數:	151 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4043.
Contained By:	Dissertation Abstracts International66-08B.
標題:	Biology, Cell. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3184316
ISBN:	9780542261558

The interrelationship between CD14 and LPS during mastitis: Release of soluble CD14 and cytokines by bovine PMN following activation with LPS.
Sohn, Eun J.

The interrelationship between CD14 and LPS during mastitis: Release of soluble CD14 and cytokines by bovine PMN following activation with LPS. - 151 p.

Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4043.

Thesis (Ph.D.)--University of Maryland, College Park, 2005.

Understanding the immune defense of the mammary gland is important in devising and developing measures to control mastitis. Lipopolysaccharide (LPS) is the predominant factor causing pathogenesis in Gram-negative bacterial infections. The cluster of differential antigen 14 (CD14), which is located on the surface of leukocytes, is the receptor for LPS. The binding of LPS to CD14 results in release of pro-inflammatory cytokines that recruit polymorphonuclear neutrophil leukocytes (PMNs), to the site of inflammation, allowing them to kill bacteria through the process of phagocytosis. This research was designed to produce and characterize monoclonal antibodies (mAb) against recombinant bovine soluble (rbos) CD14, express rbosCD14 in plants and characterize the biological activity of plant-derived rbosCD14 in vitro and in vivo. The release of inflammatory cytokines and expression of CD14 on bovine PMN and the secretion of IL-8 by PMN in response to LPS was also invesitigated.

ISBN: 9780542261558Subjects--Topical Terms:

1017686
Biology, Cell.

The interrelationship between CD14 and LPS during mastitis: Release of soluble CD14 and cytokines by bovine PMN following activation with LPS.
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245 1 4 $a The interrelationship between CD14 and LPS during mastitis: Release of soluble CD14 and cytokines by bovine PMN following activation with LPS.
300 $a 151 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4043.
500 $a Director: Robert R. Peters.
502 $a Thesis (Ph.D.)--University of Maryland, College Park, 2005.
520 $a Understanding the immune defense of the mammary gland is important in devising and developing measures to control mastitis. Lipopolysaccharide (LPS) is the predominant factor causing pathogenesis in Gram-negative bacterial infections. The cluster of differential antigen 14 (CD14), which is located on the surface of leukocytes, is the receptor for LPS. The binding of LPS to CD14 results in release of pro-inflammatory cytokines that recruit polymorphonuclear neutrophil leukocytes (PMNs), to the site of inflammation, allowing them to kill bacteria through the process of phagocytosis. This research was designed to produce and characterize monoclonal antibodies (mAb) against recombinant bovine soluble (rbos) CD14, express rbosCD14 in plants and characterize the biological activity of plant-derived rbosCD14 in vitro and in vivo. The release of inflammatory cytokines and expression of CD14 on bovine PMN and the secretion of IL-8 by PMN in response to LPS was also invesitigated.
520 $a A panel of ten murine mAb reactive with rbosCD14 were produced and a sandwich ELISA was developed using the mAbs and rabbit polyclonal antibodies. The mAbs recognized rbosCD14 (40 kDa), solubleCD14 (sCD14) (53 and 58 kDa) in milk and blood, and a 47 kDa mCD14 in lysates of macrophages obtained from involuted bovine mammary gland secretions by Western blot analysis. Flow cytometric analysis showed that the mAb bound to macrophages isolated from involuted mammary gland secretions. The addition of anti-rbosCD14 mAb to monocytes stimulated with LPS reduced TNF-alpha production in vitro. The anti-rbosCD14 mAbs generated in this study will be useful in studying CD14, an accessory molecule that contributes to host innate recognition of bacterial cell wall components in mammary secretion produced during mastitis.
520 $a This study demonstrates the functional activity of a recombinant animal receptor protein made in plants, and the use of a plant-derived protein as a potential animal therapeutic for bacterial infections. A truncated form of sCD14, carrying a histidine residue affinity tag was incorporated with potato virus X for transient expression in Nicotiana benthamiana. CD14 from crude plant extracts was recognized by Western blot analysis. Biological activities of plant-derived rbosCD14 (prbosCD14) were characterized in vitro and in vivo. Biological activity of prbosCD14 demonstrated in vitro by LPS-induced apoptosis, an increase of caspase activity and IL-8 production by bovine endothelial cells. (Abstract shortened by UMI.)
590 $a School code: 0117.
650 4 $a Biology, Cell. $3 1017686
650 4 $a Biology, Veterinary Science. $3 1021733
650 4 $a Agriculture, Animal Culture and Nutrition. $3 1017857
650 4 $a Health Sciences, Immunology. $3 1017716
650 4 $a Biology, Animal Physiology. $3 1017835
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710 2 0 $a University of Maryland, College Park. $3 657686
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790 1 0 $a Peters, Robert R., $e advisor
790 $a 0117
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