Recombinant Canine IL8 Protein

Name: Recombinant Canine IL8 Protein
Brand: Beta LifeScience
SKU: BL-0192PS
Availability: InStock

Collections: Chemokines and receptors, Cytokines and growth factors, Interleukins and receptors, Recombinant proteins

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Product Overview

Tag	N/A
Host Species	Canine
Synonym	Interleukin-8, IL-8, C-X-C motif chemokine 8, IL8, CXCL8.
Background	Interleukin-8 (IL-8) is a chemokine expressed by macrophages and other cell types such as epithelial cells. It is also synthesized by endothelial cells, which store IL-8 in their storage vesicles, the Weibel-Palade bodies.When first encountering an antigen, the primary cells to encounter it are the macrophages who phagocytose the particle. Upon processing, they release chemokines to signal other immune cells to come in to the site of inflammation. IL-8 is one such chemokine. It serves as a chemical signal that attracts neutrophils at the site of inflammation, and therefore is also known as Neutrophil Chemotactic Factor.
Description	Interleukin-8 Canine Recombinant expressed in E.Coli is a single, non-glycosylated polypeptide chain containing 79a.a. and having a molecular weight of 9.1kDa. The IL8 is purified by unique purification methods.
Source	E.coli
AA Sequence	AVLSRVSSEL RCQCIKTHST PFHPKYIKEL RVIDSGPHCE NSEIIVKLFN GNEVCLDPKE KWVQKVVQIF LKKAEKQDP.
Purity	>95.0% as determined by:(a) Analysis by RP-HPLC.(b) Analysis by SDS-PAGE.
Endotoxin	<1.0 EU per μg by the LAL method.
Bioactivity	The biological activity determined by a chemotaxis bioassay using human CXCR2 transfected murine BaF3 cells is in a concentration range of 0.15-0.75 ng/ml.
Formulation	Lyophilized from a 0.2µm filtered concentrated solution in 1xPBS, pH 7.4.
Stability	Recombinant protein is stable for 12 months at -70°C
Usage	For Research Use Only
Storage	Lyophilized IL-8 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL8 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.

Target Details

Target Function	IL-8 is a chemotactic factor that attracts neutrophils, basophils, and T-cells, but not monocytes. It is also involved in neutrophil activation. It is released from several cell types in response to an inflammatory stimulus.
Subcellular Location	Secreted.
Protein Families	Intercrine alpha (chemokine CxC) family
Database References	KEGG: cfa:403850 STRING: 9615.ENSCAFP00000004516 UniGene: Cfa.3510

Gene Functions References

Analysis of ROC suggests the use of serum levels of MCP-1 and IL-7 as predictors of the occurrence of complications with an AUC of 0.906 and 0.896 respectively and linear combinations of MCP-1, KC-Like, IL-7 and GM-CSF with values up to AUC = 0.983 PMID: 29304171
These observations indicate that the individual activation of ERK2 and JNK1 pathways contributes to TNF-alpha-induced IL-8 expression in synovial fibroblasts. PMID: 28806729
data suggest that CCL2 acts as a PMNs chemotactic factor as well as CXCL8, and both CCL2 and CXCL8 facilitate the infiltration of PMNs into the joints of idiopathic polyarthritis PMID: 27863550
The study findings suggest that both CCL2 and CXCL8 are involved in the pathogenesis of canine idiopathic pulmonary fibrosis. PMID: 26231926
High CXCL8 blood concentrations might be related to the breed predisposition of the West Highland white terrier for canine idiopathic pulmonary fibrosis. PMID: 26267090
IL-8-positive macrophages were significantly increased in large polyps compared to controls PMID: 24148828
hemangiosarcoma derived IL-8 may play a role in tumor development by modulating the tumor microenvironment PMID: 24582862
Data indicate that the Leishmania braziliensis antigens plus saponin (LBSap) vaccine induced high levels of IL-12, IL-10, CCL4, CCL5 and CXCL8 expression within 48 hours. PMID: 23911411
serum and tumor levels of IL-8 and IL-10 in dogs bearing benign and malignant mammary tumors, including dogs with inflammatory mammary cancer, for a better understanding of this disease PMID: 23351639
Sixty-one percent (28/46) of the samples from canine stifle osteoarthritis had IL-8 mRNA expression in contrast to 4% (1/24) in the control stifle joints PMID: 16102844
Adipose tissue-derived mesenchymal stem cells expressed the mRNA of transforming growth factor beta (TGF-beta), IL-6, IL-8, CCL2, CCL5, VEGF,HGF, tissue inhibitor metalloproteinase-1/2, and cyclooxygenase-2 but not that of IL-10. PMID: 18717642

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.