The SerpinB1 knockout mouse a model for studying neutrophil protease regulation in homeostasis and inflammation

Benarafa, Charaf (2011). The SerpinB1 knockout mouse a model for studying neutrophil protease regulation in homeostasis and inflammation. Methods in enzymology, 499, pp. 135-148. New York, N.Y.: Academic Press 10.1016/B978-0-12-386471-0.00007-9

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SerpinB1 is a clade B serpin, or ov-serpin, found at high levels in the cytoplasm of neutrophils. SerpinB1 inhibits neutrophil serine proteases, which are important in killing microbes. When released from granules, these potent enzymes also destroy host proteins and contribute to morbidity and mortality in inflammatory diseases including emphysema, chronic obstructive pulmonary disease, cystic fibrosis, arthritis, and sepsis. Studies of serpinB1-deficient mice have established a crucial role for this serpin in Pseudomonas aeruginosa infection by preserving lung antimicrobial proteins from proteolysis and by protecting lung-recruited neutrophils from a premature death. SerpinB1⁻/⁻ mice also have a severe defect in the bone marrow reserve of mature neutrophils demonstrating a key role for serpinB1 in cellular homeostasis. Here, key methods used to generate and characterize serpinB1⁻/⁻ mice are described including intranasal inoculation, myeloperoxidase activity, flow cytometry analysis of bone marrow myeloid cells, and elastase activity. SerpinB1-knockout mice provide a model to dissect the pathogenesis of inflammatory disease characterized by protease:antiprotease imbalance and may be used to assess the efficacy of therapeutic compounds.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Theodor Kocher Institute

UniBE Contributor:

Benarafa, Charaf

ISSN:

0076-6879

Publisher:

Academic Press

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:23

Last Modified:

05 Dec 2022 14:06

Publisher DOI:

10.1016/B978-0-12-386471-0.00007-9

PubMed ID:

21683252

Web of Science ID:

000293200200007

URI:

https://boris.unibe.ch/id/eprint/7800 (FactScience: 213136)

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