Rat Anti-Mouse IFN Hybridoma [XMG1.2] (CSC-H3086)

Regulatory status: For research use only, not for use in diagnostic procedures.

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General Information


Immunogen
MouseIFN-γ
Isotype
IgG1
Immunological Donor
Rat spleen
Clone
XMG1.2
Cell Line Description
The hybridoma cell line produces monoclonal antibody recognizing Mouse IFN-γ.
Morphology
Lymphoblast
Growth Properties
Suspension

Culture Method


Storage
Liquid nitrogen

Target


Entrez Gene ID
UniProt ID
Introduction
This gene encodes a soluble cytokine that is a member of the type II interferon class.The encoded protein is secreted by cells of both the innate and adaptive immune systems.The active protein is a homodimer that binds to the interferon gamma receptor which triggers a cellular
response to viral and microbial infections. Mice deficient in this gene have increased susceptibility to viral, bacterial and parasitic infections and to several autoimmunedisease.

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References


Endotypes of allergic rhinitis and asthma accompanying food allergy

BYULLETEN SIBIRSKOY MEDITSINY

Authors: Klimov, A., V; Isaev, P. Yu; Klimov, V. V.; Sviridova, V. S.

61 people suffering from persistent allergic rhinitis and asthma accompanying food allergies were studied using case histories, the NHANES questionnaire, polyspecific serum levels, allergen-specific IgE, IL4, IFNg and IL10 assays, and allergy skin tests. Four different endotypes have been identified, including entopic, which can be the basis for new approaches to the diagnosis and treatment of allergic rhinitis and asthma.

Interferon-gamma-dependent immune responses contribute to the pathogenesis of sclerosing cholangitis in mice

JOURNAL OF HEPATOLOGY

Authors: Ravichandran, Gevitha; Neumann, Katrin; Berkhoutl, Laura K.; Weidemann, Soeren; Langeneckert, Annika E.; Schwinge, Dorothee; Poch, Tobias; Huber, Samuel; Schiller, Birgit; Hess, Leonard U.; Ziegler, Annerose E.; Oldhafer, Karl J.; Barikbin, Roja; Schramm, Christoph; Altfeld, Marcus; Tiegs, Gisa

Background and Aims: Primary sclerosing cholangitis (PSC) is an idiopathic, chronic cholestatic liver disorder characterized by biliary inflammation and fibrosis. Increased numbers of intrahepatic interferon-gamma- (IFN gamma) producing lymphocytes have been documented in patients with PSC, yet their functional role remains to be determined. Methods: Liver tissue samples were collected from patients with PSC. The contribution of lymphocytes to liver pathology was assessed in Mdr2(-/)(-) x Rag1(-/)(-) mice, which lack T and B cells, and following depletion of CD90.2(+) or natural killer (NK) p46(+) cells in Mdr2(-/)(-) mice. Liver pathology was also determined in Mdr2(-/)(-) x Ifng(-/)(-)mice and following anti-IFN gamma antibody treatment of Mdr2(-/)(-) mice. Immune cell composition was analysed by multi-colour flow cytometry. Liver injury and fibrosis were determined by standard assays. Results: Patients with PSC showed increased IFN gamma serum levels and elevated numbers of hepatic CD56(bright) NK cells. In Mdr2(-/)(-) mice, hepatic CD8(+) T cells and NK cells were the primary source of IFN gamma. Depletion of CD90.2(+) cells reduced hepatic Ifng expression, NK cell cytotoxicity and liver injury similar to Mdr2(-/)(-) x Rag1(-/)(-) mice. Depletion of NK cells resulted in reduced CD8' T cell cytotoxicity and liver fibrosis. The complete absence of IFN gamma in Mdr2(-/)(-) x Ifng(-/)( -)mice reduced NK cell and CD8(+) T cell frequencies expressing the cytotoxic effector molecules granzyme B and TRAIL and prevented liver fibrosis. The antifibrotic effect of IFN gamma was also observed upon antibody-dependent neutralisation in Mdr2(-/)(- )mice. Conclusion: IFN gamma changed the phenotype of hepatic CD8(+) T cells and NK cells towards increased cytotoxicity and its absence attenuated liver fibrosis in chronic sclerosing cholangitis. Therefore, unravelling the immunopathogenesis of PSC with a particular focus on IFN gamma might help to develop novel treatment options. Lay summary: Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease characterized by biliary inflammation and fibrosis, whose current medical treatment is hardly effective. We observed an increased interferon (IFN)-gamma response in patients with PSC and in a mouse model of sclerosing cholangitis. IFN gamma changed the phenotype of hepatic CD8(+) T lymphocytes and NK cells towards increased cytotoxicity, and its absence decreased liver cell death, reduced frequencies of inflammatory macrophages in the liver and attenuated liver fibrosis. Therefore, IFNy-dependent immune responses may disclose checkpoints for future therapeutic intervention strategies in sclerosing cholangitis. (C) 2019 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.

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