Human LIF Antibody

Catalog # Availability Size / Price Qty
Cell Proliferation Induced by LIF and Neutralization by Human LIF Antibody.
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Product Details
Citations (1)
Supplemental Products

Human LIF Antibody Summary

Species Reactivity
Detects human LIF in direct ELISAs and Western blots. In direct ELISAs and Western blots, approximately 25% cross-reactivity with recombinant mouse LIF is observed. Neutralizes the biological activity of recombinant human LIF and will also neutralize the biological activity of recombinant mouse LIF at a 50-fold higher IgG concentration.
Polyclonal Goat IgG
Protein A or G purified
E. coli-derived recombinant human LIF
Accession # P15018
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.


Recommended Concentration
Western Blot
0.1 µg/mL
Recombinant Human LIF
Measured by its ability to neutralize LIF-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 0.1-0.4 µg/mL in the presence of 0.5 ng/mL Recombinant Human LIF.

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 LIF and Neutralization by Human LIF Antibody. View Larger

Cell Proliferation Induced by LIF and Neutralization by Human LIF Antibody. Recombinant Human LIF (Catalog # 7734-LF) stimulates proliferation in the TF-1 human erythroleukemic cell line in a dose-dependent manner (orange line) as measured by Resazurin (Catalog # AR002). Proliferation elicited by 0.5 ng/mL Recom-binant Human LIF is neutralized (green line) by increasing concentrations of Goat Anti-Human LIF Polyclonal Antibody (Catalog # AB-250-NA). The ND50 is typically 0.1-0.4 µg/mL.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 1 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it 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: LIF

LIF (Leukemia inhibitory factor; also  Differentiation-stimulating factor) is a 22 kDa (predicted) glycoprotein, member of  the leukemia inhibitory factor/interleukin-6 (LIF/IL-6) family of cytokines. Natural LIF is heavily glycosylated, showing an apparent molecular weight of 32 kDa to 62 kDa, it is produced by a variety of cells including T cells, monocytes, fibroblasts, osteoblasts and mast cells. LIF induces hematopoietic differentiation in normal and myeloid leukemia cells, neuronal cell differentiation and stimulation of acute-phase protein synthesis in hepatocytes. Human LIF acts through a receptor comprising a 190 kDa LIF-binding alpha -chain and a 130 kDa signal-transducing beta -chain (gp130), which is shared with the other members of the IL-6 family. Human and mouse LIF exhibit 78% aa sequence identity.

Long Name
Leukemia Inhibitory Factor
Entrez Gene IDs
3976 (Human); 16878 (Mouse); 403449 (Canine)
Alternate Names
CDF; D Factor; DIA; differentiation inhibitory activity; differentiation stimulating factor; Differentiation-stimulating factor; Emfilermin; HILDA; HILDAcholinergic differentiation factor; leukemia inhibitory factor (cholinergic differentiation factor); leukemia inhibitory factor; LIF; Melanoma-derived LPL inhibitor; MLPLI

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Citation for Human LIF 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.

1 Citation: Showing 1 - 1

  1. Leukemia inhibitory factor functions in parallel with interleukin-6 to promote ovarian cancer growth
    Authors: K McLean, L Tan, DE Bolland, LG Coffman, LF Peterson, M Talpaz, N Neamati, RJ Buckanovic
    Oncogene, 2018;0(0):.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization


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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

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