IL-1 beta/IL-1F2 Antibody [HRP]

Novus Biologicals, part of Bio-Techne | Catalog # NBP1-42769

Novus Biologicals, part of Bio-Techne

Key Product Details

Species Reactivity

Mouse, Rat

Applications

ELISA, Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot

Label

HRP

Antibody Source

Polyclonal Rabbit IgG

Concentration

LYOPH mg/ml

View all IL-1 beta/IL-1F2 Antibodies »

Product Specifications

Immunogen

This IL-1 beta/IL-1F2 Antibody was prepared by repeated immunizations with recombinant mouse IL-1 beta/IL-1F2 produced in E.coli. The MW of recombinant mouse IL-1 beta/IL-1F2 was 17 kDa. (Uniprot: P10749)

Specificity

This antibody is primarily directed against mature, 17,000 MW mouse IL-1beta and is useful in determining its presence in various assays. The antibody does not recognize human IL-1beta or mouse IL-1alpha based on a neutralization assay. In ELISA formats and other immunoreactive assays, reactivity occurs with rat IL-1beta. This antibody will recognize 10% of the non-denatured (native) precursor 31,000 MW mouse IL-1beta containing samples but will primarily detect all of the 17,000 MW mature molecule. However, in immunoblot analysis, the usual procedure of heating the sample in SDS with or without reducing agents will facilitate denaturing of the 31,000 MW IL- 1beta precursor molecule. Denatured 31,000 precursor IL-1beta will be recognized by this antibody.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Description

Store vial at 4C prior to restoration. For extended storage aliquot contents and freeze at -20C or below. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4C as an undiluted liquid. Dilute only prior to immediate use.

This is an IgG preparation of whole rabbit serum purified by DEAE fractionation

Scientific Data Images for IL-1 beta/IL-1F2 Antibody [HRP]

Western Blot: IL-1 beta/IL-1F2 Antibody [HRP] [NBP1-42769] - Lane 1: Mouse IL-1 Beta Load: 50 ng per lane Secondary antibody: IL1 beta Antibody Peroxidase Conjugated at 1:1,000 for 30 min at RT Block: incubated with blocking buffer for 30 min RT Predicted/Observed size: 18 kDa, 18 kDa

Applications for IL-1 beta/IL-1F2 Antibody [HRP]

Application
Recommended Usage

ELISA

1:10000-1:50000

Immunohistochemistry

1:500-1:2500

Immunohistochemistry-Paraffin

1:10-1:500

Western Blot

1:1000-1:5000
Application Notes
This product has been tested in western blot and is suitable for use in neutralizations, ELISA, radioimmunoassays, flow cytometry, immunohistochemistry, and immunoprecipitation. It recognizes the 17,000 MW mature IL-1beta. For immunoblots, typically, IL-1beta is detected from supernatants or lysates of 2 x 10E6 endotoxin-stimulated peripheral blood mononuclear cells (PBMC). PBMC are stimulated for 24 hours with 1% (v/v) serum plus 10 ng/mL E.coli LPS. For immunoprecipitation pre-clearing the preparation with a non-specific Rabbit IgG to reduce background is suggested. For immunohistochemistry either paraffin fixation or cryofixation can be used for sample preparation to stain intracellular IL-1beta. For ELISA use HRP Conjugated Anti-Rabbit IgG [H&L] (Goat) (611-1302) for detection. In ELISA formats this antibody is best used as the second antibody in combination with a monoclonal antibody as a capture antibody. This antibody is also useful for neutralization of mouse and rat IL-1beta activity in bioassays. It does not neutralize the biological activity IL-1alpha. It does not neutralize the biological activity of human or primate IL-1beta. For neutralization, it is recommended to incubate the sample with a dilution of the antibody for at least 4 hours before being tested. A control of similarly diluted normal rabbit IgG is recommended. This antibody can be used for FACS analysis. Caution should be exhibited as the F(c) domain of the rabbit IgG molecule may interact with cells non-specifically.

NOTE: Do NOT add Sodium Azide (it inhibits HRP irreversibly).

Formulation, Preparation, and Storage

Purification

Column Chromatography

Reconstitution

Reconstitute with 100 ul deionized water (or equivalent)

Formulation

Lyophilized from 0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2, 10 mg/mL Bovine Serum Albumin (BSA) - Immunoglobulin and Protease free

Preservative

0.01% Gentamicin Sulfate

Concentration

LYOPH mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store lyophilized antibody at 4C in the dark. Aliquot reconstituted liquid and store at -20C. Avoid freeze-thaw cycles.

Background: IL-1 beta/IL-1F2

Interleukin-1 beta (IL-1 beta), also called IL-1F2, is a proinflammatory cytokine that functions in host defense following injury or inflammation (1-5). IL-1 beta is expressed by cells of the immune system such as monocytes, macrophage, neutrophils, and hepatocytes (1-3). Human IL-1 beta protein is expressed in the cytoplasm in an inactive precursor form (pro-IL-1 beta) which is 269 amino acids in length with a theoretical molecular weight of 31 kDa (1,4,6). Pro-IL-1 beta is cleaved by IL-1 converting enzyme (ICE), also called caspase-1, generating the 18 kDa mature, active protein that is secreted from cells (1,4,6). Pro-IL-1 beta is produced as a cellular response to molecular signals from pathogens and other processes termed pathogen associated molecular patterns (PAMPs) and damage associated molecular patterns (DAMPs) (1,2). PAMPs and DAMPs signal through pattern recognition receptors (PRRs) to induce formation of the inflammasome (1,2). The inflammasome is a multi-protein complex made of a PRR, such as Nod-like receptor family, pyrin domain containing 3(NLRP3), an adaptor, such as apoptosis-associated spec-like protein containing a CARD (ASC), and pro-caspase-1 (1-3,5). Assembly of the inflammasome enables cleavage of pro-caspase-1 into active caspase 1, followed by secretion of activate IL-1 beta (1-3,5).

IL-1 beta binding to its receptor IL-1RI and the downstream signaling contributes to a dual pathophysiological role (3). On one hand, IL-1 beta signaling activates immune cells and drives CD4+ T cell polarization to T helper type 1 (Th1) and Th17 cells, resulting in anti-tumor responses and mediation of acute inflammation (2,3). However, IL-1 beta also supports tumor growth and metastasis driven by multiple mechanisms including chronic inflammation, an immunosuppressive tumor microenvironment (TME), and angiogenesis (3). Additionally, IL-1 beta signaling been implicated in the pathogenesis of neuroinflammatory diseases of the central nervous system (CNS) such as multiple sclerosis (MS), Alzheimer's disease, and diabetic retinopathy (DR) (2). Mouse studies have shown regression of tumors treated with IL-1 as well as protective effects of IL-1 beta in instances of induced colitis and colon carcinoma (3). Conversely, blocking IL-1 beta has also shown promising effect in cancer treatment, especially when combined with chemotherapeutics (2,3). Approved IL-1 beta monoclonal antibody canakinumab has shown significant therapeutic promise in the treatment of DR (2). Given its multifaceted role in disease, IL-1 beta is a promising therapeutic target.

References

1. Lopez-Castejon G, Brough D. Understanding the mechanism of IL-1beta secretion. Cytokine Growth Factor Rev. 2011;22(4):189-195. https://doi.org/10.1016/j.cytogfr.2011.10.001

2. Mendiola AS, Cardona AE. The IL-1beta phenomena in neuroinflammatory diseases. J Neural Transm (Vienna). 2018;125(5):781-795. https://doi.org/10.1007/s00702-017-1732-9

3. Bent R, Moll L, Grabbe S, Bros M. Interleukin-1 Beta-A Friend or Foe in Malignancies?. Int J Mol Sci. 2018;19(8):2155. https://doi.org/doi:10.3390/ijms19082155

4. Krumm B, Xiang Y, Deng J. Structural biology of the IL-1 superfamily: key cytokines in the regulation of immune and inflammatory responses. Protein Sci. 2014;23(5):526-538. https://doi.org/10.1002/pro.2441

5. He Y, Hara H, Nunez G. Mechanism and Regulation of NLRP3 Inflammasome Activation. Trends Biochem Sci. 2016;41(12):1012-1021. https://doi.org/10.1016/j.tibs.2016.09.002

6. Uniprot (P01584)

Long Name

Interleukin 1 beta

Alternate Names

IL-1b, IL-1F2, IL1 beta, IL1B

Entrez Gene IDs

16176 (Mouse); 24494 (Rat)

Gene Symbol

IL1B

UniProt

P10749

Additional IL-1 beta/IL-1F2 Products

Product Documents for IL-1 beta/IL-1F2 Antibody [HRP]

Product Datasheets

Certificate of Analysis

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Product Specific Notices for IL-1 beta/IL-1F2 Antibody [HRP]

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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