Human Cardiotrophin-1/CT-1 Antibody

(3 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human Cardiotrophin‑1/CT‑1 in Western blots. In Western blots, approximately 50% cross-reactivity with recombinant mouse Cardiotrophin-1 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human Cardiotrophin-1/CT-1
    Ser2-Ala201
    Accession # Q16619
  • 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 Cardiotrophin‑1/CT‑1 (Catalog # 612-CD)
  • Neutralization
    Measured by its ability to neutralize Cardiotrophin‑1/CT‑1-induced proliferation in the TF‑1 human erythroleukemic cell line. Kitamura, T. et al. (1989) J. Cell Physiol. 140:323. The Neutralization Dose (ND50) is typically 0.1‑0.3 µg/mL in the presence of 15 ng/mL Recombinant Human Cardiotrophin‑1/CT‑1.
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 Cardiotrophin‑1/CT‑1 and Neutralization by Human Cardiotrophin‑1/CT‑1 Antibody.

Recombinant Human Cardiotrophin‑1/CT‑1 (Catalog # 612-CD) stimulates proliferation in the TF‑1 human erythro­leukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human Cardiotrophin‑1/CT‑1 (15 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human Cardiotrophin‑1/CT‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF612). The ND50 is typically 0.1-0.3 µg/mL.

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: Cardiotrophin-1/CT-1

Cardiotrophin-1 (CT-1) is a member of the cytokine family which also includes IL-6, IL-11, leukemia inhibitory factor (LIF), oncostatin M (OSM), and ciliary neurotrophic factor (CNTF). It was originally isolated based on its ability to induce cardiac myocyte hypertrophy in vitro. CT-1 has since been shown to be a pleiotrophic cytokine with overlapping actions with other IL-6 family members on a variety of cell types. Human CT-1 encodes a 201 amino acid (aa) residue protein that lacks a hydrophobic signal peptide. The mechanism of CT-1 release from cells is currently not understood. Human and mouse CT-1 share 80% aa sequence identity and exhibit cross-species activity. CT-1 is highly expressed in heart, skeletal muscle, liver, lung and kidney. Lower levels of CT-1 expression is also seen in testis and brain. CT-1 initiates downstream signaling pathways through the heterodimerization of gp130 and the LIF receptor beta subunit. A third  alpha receptor subunit has been implicated in the receptor complex.

  • References:
    1. Pennica, D. et al. (1996) Cytokine and Growth Factor Reviews 7:81.
    2. Robledo, O. et al. (1997) J. Biol. Chem. 272:4855.
  • Entrez Gene IDs:
    1489 (Human); 13019 (Mouse)
  • Alternate Names:
    cardiophin 1; cardiotrophin 1; Cardiotrophin1; Cardiotrophin-1; CT-1CT1; CTF1
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.

3 Citations: Showing 1 - 3
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Species
Applications
Sample Type
  1. HIF-1-mediated up-regulation of cardiotrophin-1 is involved in the survival response of cardiomyocytes to hypoxia.
    Authors: Robador PA, San Jose G, Rodriguez C, Guadall A, Moreno MU, Beaumont J, Fortuno A, Diez J, Martinez-Gonzalez J, Zalba G
    Cardiovasc. Res., 2011;92(2):247-55.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  2. Cardiotrophin-1 induces interleukin-6 synthesis in human monocytes.
    Authors: Fritzenwanger M, Meusel K, Foerster M, Kuethe F, Krack A, Figulla HR
    Cytokine, 2007;38(3):137-44.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  3. Alterations in Janus kinase (JAK)-signal transducers and activators of transcription (STAT) signaling in patients with end-stage dilated cardiomyopathy.
    Authors: Podewski EK, Hilfiker-Kleiner D, Hilfiker A, Morawietz H, Lichtenberg A, Wollert KC, Drexler H
    Circulation, 2003;107(6):798-802.
    Species: Human
    Sample Type: Tissue Homogenates
    Application: WB
Isotype Controls
Description Application Cat# Citations Images  

Normal Goat IgG Control

Ctrl AB-108-C 191  
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Secondary Antibodies
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Goat IgG HRP-conjugated Antibody

WB, Simple Western HAF109 19  
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Goat IgG HRP-conjugated Antibody

WB HAF017 15  
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Goat IgG (H+L) PE-conjugated Antibody

Flow F0107 4  
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Donkey Anti-Goat IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL001 9
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Donkey Anti-Goat IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL003 5
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Goat IgG (H+L) APC-conjugated Antibody

Flow F0108 6  
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Goat IgG Horseradish Peroxidase-conjugated Antibody

WB HAF019 6  
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Donkey Anti-Goat IgG Antibody

WB AF109 6
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Donkey Anti-Goat IgG Biotinylated Antibody

WB BAF109 3
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Goat IgG VisUCyte HRP Polymer

IHC VC004  
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Goat IgG (H+L) Fluorescein-conjugated Antibody

Flow F0109 2  
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Donkey Anti-Goat IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL002
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Rabbit Anti-Goat IgG (H+L) Affinity Purified PAb, X Absorbed

WB, ELISA R-401-C-ABS
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Chicken Anti-Goat IgG Biotinylated Antibody

WB BAF019
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Rabbit Anti-Goat IgG Biotinylated Antibody

WB BAF017
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Donkey Anti-Goat IgG (H+L) PerCP-conjugated Antibody

Flow F0124
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