Porcine TNF-alpha Antibody Summary
Accession # P23563
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Cytotoxicity Induced by TNF‑ alpha and Neutralization by Porcine TNF‑ alpha Antibody.
Recombinant Porcine TNF‑ alpha (Catalog # 690‑PT) induces cytotoxicity in the the PK‑15 porcine kidney epithelial cell line in a dose-dependent manner (orange line), as measured by crystal violet staining. Cytotoxicity elicited by Recombinant Porcine TNF‑ alpha (0.05 ng/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Porcine TNF‑ alpha Monoclonal Antibody (Catalog # MAB6901). The ND50 is typically 0.015-0.06 µg/mL in the presence of the metabolic inhibitor actinomycin D (1 µg/mL).
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Tumor necrosis factor alpha (TNF-alpha ), also known as cachectin and TNFSF2, is the prototypic ligand of the TNF superfamily. It is a pleiotropic molecule that plays a central role in inflammation, apoptosis, and immune system development. TNF-alpha is produced by a wide variety of immune and epithelial cell types (1, 2). Porcine TNF-alpha consisits of a 35 amino acid (aa) cytoplasmic domain, a 21 aa transmembrane segment, and a 176 aa extracellular domain (ECD) (3). Within the ECD, porcine TNF-alpha shares 69%‑86% aa sequence identity with bovine, canine, cotton rat, equine, feline, human, mouse, rat, and rhesus TNF-alpha. The 26 kDa type 2 transmembrane protein is assembled intracellularly to form a noncovalently linked homotrimer (4). Ligation of this complex induces reverse signaling that promotes lymphocyte costimulation but diminishes monocyte responsiveness (5). Cleavage of membrane bound TNF-alpha by TACE/ADAM17 releases a 55 kDa soluble trimeric form of TNF-alpha (6, 7). TNF-alpha trimers bind the ubiquitous TNF RI and the hematopoietic cell-restricted TNF RII, both of which are also expressed as homotrimers (1, 8). TNF-alpha regulates lymphoid tissue development through control of apoptosis (2). It also promotes inflammatory responses by inducing the activation of vascular endothelial cells and macrophages (2). TNF-alpha is a key cytokine in the development of several inflammatory disorders (9). It contributes to the development of type 2 diabetes through its effects on insulin resistance and fatty acid metabolism (10, 11).
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- Romanatto, T. et al. (2007) Peptides 28:1050.
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Citations for Porcine TNF-alpha Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
Citations: Showing 1 - 2
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Characterization of a Broadly Reactive Anti-CD40 Agonistic Monoclonal Antibody for Potential Use as an Adjuvant
Authors: C Martin, SD Waghela, S Lokhandwal, A Ambrus, J Bray, C Vuong, V Vinodkumar, PJ Dominowski, S Rai, D Mwangi, DL Foss, W Mwangi
PLoS ONE, 2017;12(1):e0170504.
Sample Types: Whole Cells
Enhanced integrative repair of the porcine meniscus in vitro by inhibition of interleukin-1 or tumor necrosis factor alpha.
Authors: McNulty AL, Moutos FT, Weinberg JB, Guilak F
Arthritis Rheum., 2007;56(9):3033-42.
Sample Types: Whole Cells
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