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CartBovine IL-8 (CXCL8) Polyclonal Antibody
Interleukin-8 (IL-8), also known as CXCL8, is a CXC family member chemokine produced by macrophages and other cell types such as epithelial cells. There have been 17 different CXC chemokines described in mammals, that are subdivided into two categories, those with a specific amino acid sequence (or motif) of glutamic acid-leucine-arginine (or ELR for short) immediately before the first cysteine of the CXC motif (ELR-positive), and those without an ELR motif (ELR-negative). ELR-positive CXC chemokines such as IL-8 specifically induce the migration of neutrophils, and interact with chemokine receptors CXCR1 and CXCR2.
Reactivity - ELISA
Bovine IL-8 - Strong
Canine IL-8 - Moderate
Dolphin IL-8 - Moderate
Equine IL-8 - Weak
Feline IL-8 - None
Guinea Pig IL-8 - None
Human IL-8 - None
Rabbit IL-8 - Weak
Swine IL-8 - Weak
Bovine IL-8 ELISA Data
Host Factors Determine the Evolution of Infection With Staphylococcus Aureus to Gangrenous Mastitis in Goats.
Rainard P, Gitton C, Chaumeil T, Fassier T, Huau C, Riou M, Tosser-Klopp G, Krupova Z, Chaize A, Gilbert FB, Rupp R, Martin P.
Vet Res. 2018 Jul 25;49(1):72. doi: 10.1186/s13567-018-0564-4.
Applications: Measurement of goat IL-8 in milk by ELISA
Abstract
Staphylococcus aureus is the major cause of very severe mastitis of dairy goats. The initial objective of our study was to fine-tune an experimental model of infection of the goat mammary gland with two strains of S. aureus and two lines of goats (low and high somatic cell score lines). Following the challenge, the 10 infected goats divided in two clear-cut severity groups, independently of the S. aureus strain and the goat line. Five goats developed very severe mastitis (of which four were gangrenous) characterized by uncontrolled infection (UI group), whereas the other five kept the infection under control (CI group). The outcome of the infection was determined by 18 h post-infection (hpi), as heralded by the bacterial milk concentration at 18 hpi: more than 107/mL in the UI group, about 106/mL in the CI group. Leukocyte recruitment and composition did not differ between the groups, but the phagocytic killing at 18 hpi efficiency did. Contributing factors involved milk concentrations of α-toxin and LukMF' leukotoxin, but not early expression of the genes encoding the pentraxin PTX3, the cytokines IL-1α and IL-1β, and the chemokines IL-8 and CCL5. Concentrations of TNF-α, IFN-γ, IL-17A, and IL-22 rose sharply in the milk of UI goats when infection was out of control. The results indicate that defenses mobilized by the mammary gland at an early stage of infection were essential to prevent staphylococci from reaching critical concentrations. Staphylococcal exotoxin production appeared to be a consequent event inducing the evolution to gangrenous mastitis.
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