Human IGF-I Antibody

(13 citations)
(1 Review)
  
  • Species Reactivity
    Human
  • Specificity
    Detects human IGF-I in direct ELISAs and Western blots. In direct ELISAs, approximately 35% cross-reactivity with recombinant mouse IGF-I and recombinant rat IGF-1 is observed, and less than 1% cross-reactivity with recombinant human (rh) IGF-2 and rhIGF-L1 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human IGF-I
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied 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 Human IGF-I (Catalog # 291-G1)
  • Immunohistochemistry
    5-15 µg/mL
    See below
  • Immunocytochemistry
    5-15 µg/mL
    See below
  • Neutralization
    Measured by its ability to neutralize IGF‑I-induced proliferation in the MCF‑7 human breast cancer cell line. Karey, K.P. et al. (1988) Cancer Research 48:4083. The Neutralization Dose (ND50) is typically 3-12 µg/mL in the presence of 6 ng/mL Recombinant Human IGF‑I.
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.
Data Examples

Cell Proliferation Induced by IGF‑I and Neutralization by Human IGF‑I Antibody. Recombinant Human IGF‑I (Catalog # 291-G1) stimulates proliferation in the MCF‑7 human breast cancer cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IGF‑I (6 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human IGF-I Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-291-NA). The ND50 is typically 3‑12 µg/mL.

Immunocytochemistry

IGF-I in MDA‑MB‑231 Human Cell Line. IGF-I was detected in immersion fixed MDA-MB-231 human breast cancer cell line using Goat Anti-Human IGF-I Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-291-NA) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (yellow; Catalog # NL001) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Immunohistochemistry

IGF‑I in Human Placenta. IGF‑I was detected in immersion fixed paraffin-embedded sections of human placenta using Goat Anti-Human IGF‑I Antigen Affinity-purified Polyclonal Antibody (Catalog #
AF-291-NA) at 5 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to syncytiotrophoblasts. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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: IGF-I
IGF-I belongs to the family of insulin-like growth factors and circulates in complex with IGF binding proteins. It is a potent mitogenic growth factor that binds the heteromeric type I and type II IGF receptors. Essentially, all of the biological activities of IGF-I are mediated by IGF-I R.
  • Long Name:
    Insulin-like Growth Factor I
  • Entrez Gene IDs:
    3479 (Human); 16000 (Mouse); 24482 (Rat)
  • Alternate Names:
    IBP1; IGF1; IGF-1; IGF1A; IGFI; IGF-I; IGF-IA; IGF-IB; insulin-like growth factor 1 (somatomedin C); insulin-like growth factor 1; insulin-like growth factor I; insulin-like growth factor IA; insulin-like growth factor IB; Mechano growth factor; MGF; Somatomedin A; Somatomedin C; somatomedin-C
Related Research Areas
Citations:

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.

13 Citations: Showing 1 - 10
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Species
Applications
Sample Type
  1. Peripheral blood aspirates overexpressing IGF-I via rAAV gene transfer undergo enhanced chondrogenic differentiation processes
    Authors: J Frisch, P Orth, A Rey-Rico, JK Venkatesan, G Schmitt, H Madry, D Kohn, M Cucchiarin
    J. Cell. Mol. Med., 2017;0(0):.
    Species: Human
    Sample Type: Whole Cells
    Application: ICC
  2. A subset of bone marrow stromal cells regulate ATP-binding cassette gene expression via insulin-like growth factor-I in a leukemia cell line.
    Authors: Benabbou N, Mirshahi P, Bordu C, Faussat A, Tang R, Therwath A, Soria J, Marie J, Mirshahi M
    Int J Oncol, 2014;45(4):1372-80.
  3. Hypoxia enhances protective effect of placental-derived mesenchymal stem cells on damaged intestinal epithelial cells by promoting secretion of insulin-like growth factor-1.
    Authors: Du, Lili, Yu, Yanqiu, Ma, Haiying, Lu, Xiaomei, Ma, Ling, Jin, Yunan, Zhang, Haipeng
    Int J Mol Sci, 2014;15(2):1983-2002.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  4. IGF-1 promotes the development and cytotoxic activity of human NK cells.
    Authors: Ni, Fang, Sun, Rui, Fu, Binqing, Wang, Fuyan, Guo, Chuang, Tian, Zhigang, Wei, Haiming
    Nat Commun, 2013;4(0):1479.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  5. Benefits of recombinant adeno-associated virus (rAAV)-mediated insulinlike growth factor I (IGF-I) overexpression for the long-term reconstruction of human osteoarthritic cartilage by modulation of the IGF-I axis.
    Authors: Weimer A, Madry H, Venkatesan JK
    Mol. Med., 2012;18(1):346-58.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  6. Growth hormone promotes lymphangiogenesis.
    Authors: Banziger-Tobler NE, Halin C, Kajiya K, Detmar M
    Am. J. Pathol., 2008;173(2):586-97.
    Species: Human
    Sample Type: Cell Culture Supernates
    Application: ELISA Development
  7. Bronchial epithelial cell growth regulation in fibroblast cocultures: the role of hepatocyte growth factor.
    Authors: Skibinski G, Elborn JS, Ennis M
    Am. J. Physiol. Lung Cell Mol. Physiol., 2007;293(1):L69-76.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  8. Effect of construct properties on encapsulated chondrocyte expression of insulin-like growth factor-1.
    Authors: Yoon DM, Hawkins EC, Francke-Carroll S, Fisher JP
    Biomaterials, 2006;28(2):299-306.
    Species: Bovine
    Sample Type: Cell Lysates
    Application: WB
  9. Induced expression of insulin-like growth factor-1 by amniotic membrane-conditioned medium in cultured human corneal epithelial cells.
    Authors: Lee JH, Ryu IH, Kim EK, Lee JE, Hong S, Lee HK
    Invest. Ophthalmol. Vis. Sci., 2006;47(3):864-72.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  10. Gene induction during differentiation of human pulmonary type II cells in vitro.
    Authors: Wade KC, Guttentag SH, Gonzales LW, Maschhoff KL, Gonzales J, Kolla V, Singhal S, Ballard PL
    Am. J. Respir. Cell Mol. Biol., 2006;34(6):727-37.
    Species: Human
    Sample Type: Tissue Homogenates
    Application: WB
  11. Mining the acute respiratory distress syndrome proteome: identification of the insulin-like growth factor (IGF)/IGF-binding protein-3 pathway in acute lung injury.
    Authors: Schnapp LM, Donohoe S, Chen J, Sunde DA, Kelly PM, Ruzinski J, Martin T, Goodlett DR
    Am. J. Pathol., 2006;169(1):86-95.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  12. The role of matrix metalloproteinase-7 in redefining the gastric microenvironment in response to Helicobacter pylori.
    Authors: McCaig C, Duval C, Hemers E, Steele I, Pritchard DM, Przemeck S, Dimaline R, Ahmed S, Bodger K, Kerrigan DD, Wang TC, Dockray GJ, Varro A
    Gastroenterology, 2006;130(6):1754-63.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  13. Quantification, localization, and expression of IGF-I and TGF-beta1 during growth factor-stimulated fracture healing.
    Authors: Brenner N, Huning M, Stange R
    Calcif. Tissue Int., 2004;74(4):388-97.
    Species: Rat
    Sample Type: Whole Tissue
    Application: IHC Paraffin-embedded
Expand to show all 13 Citations
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Summary

ApplicationSiteclcik antibody biotinylation
Sample TestedB16-F1 mouse melanoma cell line
SpeciesMouse

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