Human KGF/FGF-7 Antibody AF-251-NA: R&D Systems

Human KGF/FGF-7 Antibody

(4 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human KGF/FGF‑7 in direct ELISAs and Western blots. In direct ELISAs, approximately 50% cross-reactivity with recombinant mouse FGF-7 is observed, less than 20% cross-reactivity with recombinant human (rh) FGF-9 is observed, and less than 10% cross‑reactivity with rhFGF-4 and rhFGF-9 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human KGF/FGF‑7
    Cys32-Thr194
    Accession # Q6FGV5
  • 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 KGF/FGF‑7 (Catalog # 251-KG)
  • Immunohistochemistry
    5-15 µg/mL
    See below
  • Neutralization
    Measured by its ability to neutralize KGF/FGF‑7-induced proliferation in the 4MBr‑5 rhesus monkey epithelial cell line. The Neutralization Dose (ND50) is typically 6-12 µg/mL in the presence of 125 ng/mL Recombinant Human KGF/FGF‑7.
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 KGF/FGF‑7 and Neutralization by Human KGF/FGF‑7 Antibody. Recombinant Human KGF/FGF‑7 (Catalog # 251-KG) stimulates proliferation in the 4MBr‑5 rhesus monkey epithelial cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human KGF/FGF‑7 (125 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human KGF/FGF‑7 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-251-NA). The ND50 is typically 6-12 µg/mL.

Immunohistochemistry

KGF/FGF‑7 in Human Placenta. KGF/FGF‑7 was detected in immersion fixed paraffin-embedded sections of human placenta (chorionic villi) using Goat Anti-Human KGF/FGF‑7 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-251-NA) at 10 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). 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 trophoblast cells in chorionic villi. 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: KGF/FGF-7

KGF (keratinocyte growth factor), also known as FGF-7 (fibroblast growth factor-7), is one of 22 known members of the mouse FGF family of secreted proteins that plays a key role in development, morphogenesis, angiogenesis, wound healing, and tumorigenesis (1‑4). KGF expression is restricted to cells of mesenchymal origin. When secreted, it acts as a paracrine growth factor for nearby epithelial cells (1). KGF speeds wound healing by being dramatically upregulated in response to damage to skin or internal structures that results in high local concentrations of inflammatory mediators such as IL-1 and TNF-alpha. (2, 5). KGF promotes cell migration and invasion, and mediates melanocyte transfer to keratinocytes upon UVB radiation (6, 7). It has been used ectopically to avoid chemotherapy-induced oral mucositis in patients with hematological malignancies (1). Deletion of KGF affects kidney development, producing abnormally small ureteric buds and fewer nephrons (8). It also impedes hair follicle differentiation (9). The 194 amino acid (aa) KGF precursor contains a 31 aa signal sequence and, like all other FGFs, an ~120 aa beta -trefoil scaffold that includes receptor- and heparin-binding sites. KGF signals only through the IIIb splice form of the tyrosine kinase receptor, FGF R2 (FGF R2-IIIb/KGF R) (10). Receptor dimerization requires an octameric or larger heparin or heparin sulfate proteoglycan (11). FGF-10, also called KGF2, shares 51% aa identity and similar function to KGF, but shows more limited expression than KGF and uses an additional receptor, FGF R2-IIIc (12). Following receptor engagement, KGF is typically degraded, while FGF-10 is recycled (12). Mature human KGF, which is active across species, shares 98% aa sequence identity with bovine, equine, ovine and canine, 96% with mouse and porcine, and 92% with rat KGF, respectively.

  • References:
    1. Finch, P.W. and J.S. Rubin (2006) J. Natl. Cancer Inst. 98:812.
    2. Werner, S. et al. (2007) J. Invest. Dermatol. 127:998.
    3. Werner, S. (1998) Cytokine Growth Factor Rev. 9:153.
    4. Mason, I.J. et al. (1994) Mech. Dev. 45:15.
    5. Geer, D.J. et al. (2005) Am. J. Pathol. 167:1575.
    6. Niu, J. et al. (2007) J. Biol. Chem. 282:6001.
    7. Cardinali, G. et al. (2005) J. Invest. Dermatol. 125:1190.
    8. Qiao, J. et al. (1999) Development 126:547.
    9. Guo, L. et al. (1996) Genes Dev. 10:165.
    10. de Georgi, V. et al. (2007) Dermatol. Clin. 25:477.
    11. Hsu, Y-R. et al. (1999) Biochemistry 38:2523.
    12. Belleudi, F. et al. (2007) Traffic 8:1854.
  • Long Name:
    Keratinocyte Growth Factor
  • Entrez Gene IDs:
    2252 (Human); 403915 (Canine)
  • Alternate Names:
    FGF7; FGF-7; fibroblast growth factor 7HBGF-7; Heparin-binding growth factor 7; keratinocyte growth factor; KGF; KGFfibroblast growth factor 7 (keratinocyte growth factor)
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.

4 Citations: Showing 1 - 4
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Species
Applications
Sample Type
  1. Anti-inflammatory activity of nanocrystalline silver-derived solutions in porcine contact dermatitis.
    Authors: Nadworny PL, Wang J, Tredget EE
    J Inflamm (Lond), 2010;7(0):13.
    Species: Porcine
    Sample Type: Whole Tissue
    Application: IHC Paraffin-embedded
  2. 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
  3. 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
  4. Salivary leptin induces increased expression of growth factors in oral keratinocytes.
    Authors: Groschl M, Topf HG, Kratzsch J, Dotsch J, Rascher W, Rauh M
    J. Mol. Endocrinol., 2005;34(2):353-66.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
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