Human IL-7 Antibody Summary
Accession # P13232
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.
Detection of Recombinant Human and Mouse IL‑7 by Western Blot. Western blot shows 25 ng of Recombinant Human IL-7 (Catalog # 207-IL), Recombinant Mouse IL-7 (Catalog # 407-ML) and Recombinant Rat IL-7 (Catalog # 7857-RL). PVDF Membrane was probed with 0.1 µg/mL of Goat Anti-Human IL-7 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-207-NA) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). A specific band was detected for IL-7 at approximately 17 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 3.
Cell Proliferation Induced by IL‑7 and Neutralization by Human IL‑7 Antibody. Recombinant Human IL-7 (Catalog # 207-IL) stimulates proliferation in PHA-activated human peripheral blood mononuclear cells (PBMC) in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL-7 (2.5 ng/mL) is neutralized (green line) by increasing concentrations of Human IL-7 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-207-NA). The ND50is typically 0.075-0.5 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.
IL-7, previously known as pre-B cell growth factor and lymphopoietin-1, was originally purified on the basis of its ability to promote the proliferation of precursor B cells. It has now been shown that IL-7 can also stimulate the proliferation of thymocytes, T cell progenitors and mature CD4+ and CD8+ T cells. IL-7 can induce the formation of lymphokine-activated killer (LAK) cells as well as the development of cytotoxic T lymphocytes (CTL). IL-7 was also shown to induce the V(D)J rearrangement of the T cell receptor beta gene in mouse fetal thymocytes. Among myeloid lineage cells, IL-7 can up-regulate the production of pro-inflammatory cytokines and stimulate the tumoricidal activity of monocytes/macrophages. IL-7 is expressed by adherent stromal cells from various tissues.
Human IL-7 cDNA encodes a precursor protein of 177 amino residues containing a 25 amino acid residue signal peptide. Mouse IL-7 has approximately 65% amino acid sequence identity with human IL-7 and both proteins exhibit cross-species activity.
IL-7 bioactivites are mediated by the binding of IL-7 to functional high-affinity receptor complexes. The ligand binding subunit (IL-7 R) of the IL-7 receptor complex has been cloned from human and mouse sources. In addition to the membrane-anchored form of the IL-7 receptor, a human cDNA clone that encodes a soluble form of the IL-7 R has also been isolated. The gamma chain of the IL-2 receptor complex has been shown to be an essential component for IL-7 signal transduction. Both IL-7 R and IL-2 R gamma are members of the hematopoietin receptor superfamily. Cells known to express IL-7 receptors include pre-B cells, T cells and bone marrow cells.
Citations for Human IL-7 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 - 4
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Interleukin 7 plays a role in T lymphocyte apoptosis inhibition driven by mesenchymal stem cell without favoring proliferation and cytokines secretion.
Authors: Normanton M, Alvarenga H, Hamerschlak N, Ribeiro A, Kondo A, Rizzo L, Marti L
PLoS ONE, 2014;9(9):e106673.
Sample Types: Whole Cells
Murine and human IL-7 activate STAT5 and induce proliferation of normal human pro-B cells.
Authors: Johnson SE, Shah N, Panoskaltsis-Mortari A, Lebien TW
J. Immunol., 2005;175(11):7325-31.
Sample Types: Whole Cells
Dendritic cells induce MUC1 expression and polarization on human T cells by an IL-7-dependent mechanism.
Authors: Vasir B, Avigan D, Wu Z, Crawford K, Turnquist S, Ren J, Kufe D
J. Immunol., 2005;174(4):2376-86.
Sample Types: Whole Cells
Structure function analysis of interleukin 7: requirement for an aromatic ring at position 143 of helix D.
Authors: vanderSpek JC, Sutherland JA, Gill BM, Gorgun G, Foss FM, Murphy JR
Sample Types: Cell Culture Supernates
Applications: Western Blot
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This antibody was used as the detection paired with MAB207 as the capture in an ELISA. IL-7 in human samples were measured.