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Rat IL-4 Antibody

Catalog #: AF-504-NA
4 Citations Datasheet
Catalog # Availability Size / Price Qty
AF-504-NA
AF-504-SP
Cell Proliferation Induced by IL‑4 and Neutralization by Rat IL‑4 Antibody.
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Citations (4)
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Rat IL-4 Antibody Summary

Species Reactivity
Rat
Specificity
Detects rat IL-4 in direct ELISAs and Western blots. In direct ELISAs, less than 15% cross-reactivity with recombinant cotton rat IL‑4 and recombinant mouse IL-4 is observed, and less than 1% cross-reactivity with recombinant human IL‑4, recombinant canine IL-4, and recombinant porcine IL‑4 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
E. coli-derived recombinant rat IL‑4
Cys25-Ser147
Accession # P20096
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Rat IL‑4 (Catalog # 504-RL)
Neutralization
Measured by its ability to neutralize IL‑4-induced proliferation in the rat splenocytes. The Neutralization Dose (ND50) is typically 0.05-015 µg/mL in the presence of 4 ng/mL Recombinant Rat IL‑4 and 10 µg/mL PHA.

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.

Scientific Data

Neutralization Cell Proliferation Induced by IL‑4 and Neutralization by Rat IL‑4 Antibody. View Larger

Cell Proliferation Induced by IL‑4 and Neutralization by Rat IL‑4 Antibody. Recombinant Rat IL-4 (Catalog # 504-RL) stimulates proliferation in the rat splenocytes in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Rat IL-4 (4 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Rat IL-4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-504-NA). The ND50 is typically 0.05-015 µg/mL in the presence of PHA (10 µg/mL).

Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
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Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 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.

Background: IL-4

Interleukin-4 (IL-4), also known as B cell-stimulatory factor-1, is a monomeric, approximately 13-18 kDa Th2 cytokine that shows pleiotropic effects during immune responses (1‑3). It is a glycosylated polypeptide that contains three intrachain disulfide bridges and adopts a bundled four alpha -helix structure (4). Rat IL-4 is synthesized with a 24 amino acid (aa) signal sequence. Mature rat IL-4 shares 41%, 43%, and 59% aa sequence identity with bovine, human, and mouse IL-4, respectively. Human, mouse, and rat IL-4 are species-specific in their activities (5-7). IL-4 exerts its effects through two receptor complexes (8, 9). The type I receptor, which is expressed on hematopoietic cells, is a heterodimer of the ligand binding IL-4 R alpha and the common gamma chain (a shared subunit of the receptors for IL-2, -7, -9, -15, and ‑21). The type II receptor on nonhematopoietic cells consists of IL-4 R alpha and IL-13 R alpha 1. The type II receptor also transduces IL-13 mediated signals. IL-4 is primarily expressed by Th2-biased CD4+ T cells, mast cells, basophils, and eosinophils (1, 2). It promotes cell proliferation, survival, and immunoglobulin class switch to IgG1 and IgE in rodent B cells, acquisition of the Th2 phenotype by naïve CD4+ T cells, priming and chemotaxis of mast cells, eosinophils, and basophils, and the proliferation and activation of epithelial cells (10-13). IL-4 plays a dominant role in the development of allergic inflammation and asthma (12, 14).

References
  1. Benczik, M. and S.L. Gaffen (2004) Immunol. Invest. 33:109.
  2. Chomarat, P. and J. Banchereau (1998) Int. Rev. Immunol. 17:1.
  3. McKnight, A.J. et al. (1991) Eur. J. Immunol. 21:1187.
  4. Redfield, C. et al. (1991) Biochemistry 30:11029.
  5. Ramirez, F. et al. (1988) J. Immunol. Meth. 221:141.
  6. Leitenberg, D. and T.L. Feldbush (1988) Cell. Immunol. 111:451.
  7. Mosman, T.R. et al. (1987) J. Immunol. 138:1813.
  8. Mueller, T.D. et al. (2002) Biochim. Biophys. Acta 1592:237.
  9. Nelms, K. et al. (1999) Annu. Rev. Immunol. 17:701.
  10. Paludan, S.R. (1998) Scand. J. Immunol. 48:459.
  11. Corthay, A. (2006) Scand. J. Immunol. 64:93.
  12. Ryan, J.J. et al. (2007) Crit. Rev. Immunol. 27:15.
  13. Grone, A. (2002) Vet. Immunol. Immunopathol. 88:1.
  14. Rosenberg, H.F. et al. (2007) J. Allergy Clin. Immunol. 119:1303.
Long Name
Interleukin 4
Entrez Gene IDs
3565 (Human); 16189 (Mouse); 287287 (Rat); 397225 (Porcine); 280824 (Bovine); 403785 (Canine); 574281 (Primate); 100302454 (Rabbit)
Alternate Names
B cell growth factor 1; BCDF; B-cell stimulatory factor 1; BCGF1; BCGF-1; binetrakin; BSF1; BSF-1; IL4; IL-4; IL-4B_cell stimulatory factor 1; IL4E12; interleukin 4; interleukin-4; Lymphocyte stimulatory factor 1; MGC79402; pitrakinra

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Citations for Rat IL-4 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.

4 Citations: Showing 1 - 4
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  1. Hepatocyte growth factor-modified hair follicle stem cells ameliorate cerebral ischemia/reperfusion injury in rats
    Authors: Hao Tang, Xuemei Zhang, Xiaojun Hao, Haitong Dou, Chendan Zou, Yinglian Zhou et al.
    Stem Cell Research & Therapy
  2. Interleukin-4 Aggravates LPS-Induced Striatal Neurodegeneration In Vivo via Oxidative Stress and Polarization of Microglia/Macrophages
    Authors: J Jang, A Hong, Y Chung, B Jin
    International Journal of Molecular Sciences, 2022-01-05;23(1):.
    Species: Rat
    Sample Types: In Vivo, Whole Tissue
    Applications: IHC, Neutralization
  3. Interleukin-4 and Interleukin-13 Exacerbate Neurotoxicity of Prothrombin Kringle-2 in Cortex In Vivo via Oxidative Stress
    Authors: JY Jeong, YC Chung, BK Jin
    Int J Mol Sci, 2019-04-19;20(8):.
    Species: Rat
    Sample Types: Whole Tissue
    Applications: IHC
  4. Endogenous expression of interleukin-4 regulates macrophage activation and confines cavity formation after traumatic spinal cord injury.
    Authors: Lee SI, Jeong SR, Kang YM
    J. Neurosci. Res., 2010-08-15;88(11):2409-19.
    Species: Rat
    Sample Types: In Vivo, Whole Tissue
    Applications: IHC-Fr, Neutralization

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