Feline GM-CSF Antibody

Catalog #: MAB987 Datasheet

Catalog #	Availability	Size / Price	Qty
MAB987
MAB987-SP

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Feline GM-CSF Antibody Summary

Species Reactivity

Feline

Specificity

Detects feline GM-CSF in direct ELISAs and Western blots. In direct ELISAs, 100% cross-reactivity with recombinant porcine GM-CSF is observed and no cross-reactivity with recombinant GM-CSF from human, mouse, or rat is observed.

Source

Monoclonal Mouse IgG₁ Clone # 159321

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant feline GM-CSF
Ala18-Lys144 (Met36Ile, Thr56Ala & Lys126Asn)
Accession # AAC06041

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.

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

Recombinant Feline GM-CSF (Catalog # 987-FL)

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.

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

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: GM-CSF

GM-CSF was initially characterized as a factor that can support the in vitro colony formation of granulocyte-macrophage progenitors. It is also a growth factor for erythroid, megakaryocyte, and eosinophil progenitors. GM-CSF is produced by a number of different cell types (including T cells, B cells, macrophages, mast cells, endothelial cells, fibroblasts, and adipocytes) in response to cytokine or inflammatory stimuli. On mature hematopoietic cells, GM-CSF is a survival factor for and activates the effector functions of granulocytes, monocytes/macrophages, and eosinophils (1, 2). GM-CSF promotes a Th1 biased immune response, angiogenesis, allergic inflammation, and the development of autoimmunity (3 - 5). It shows clinical effectiveness in ameliorating chemotherapy-induced neutropenia, and GM-CSF transfected tumor cells are utilized as cancer vaccines (6, 7). The 22 kDa glycosylated GM-CSF, similar to IL-3 and IL-5, is a cytokine with a core of four bundled alpha ‑helices (8‑10). Mature feline GM-CSF shares 52%‑56% amino acid sequence identity with mouse and rat GM-CSF and 67%‑72% canine, human, and porcine GM‑CSF. GM-CSF exerts its biological effects through a heterodimeric receptor complex composed of GM-CSF R alpha /CD116 and the signal transducing common beta chain (CD131) which is also a component of the high-affinity receptors for IL-3 and IL-5 (11, 12). In addition, GM-CSF binds a naturally occurring soluble form of GM-CSF R alpha (13). Feline and human GM-CSF show cross-species activity (14, 15).

References

Martinez-Moczygemba, M. and D.P. Huston (2003) J. Allergy Clin. Immunol. 112:653.
Barreda, D.R. et al. (2004) Dev. Comp. Immunol. 28:509.
Eksioglu, E.A. et al. (2007) Exp. Hematol. 35:1163.
Cao, Y. (2007) J. Clin. Invest. 117:2362.
Fleetwood, A.J. et al. (2005) Crit. Rev. Immunol. 25:405.
Heuser, M. et al. (2007) Semin. Hematol. 44:148.
Hege, K.M. et al. (2006) Int. Rev. Immunol. 25:321.
Kaushansky, K. et al. (1992) Biochemistry 31:1881.
Diederichs, K. et al. (1991) Science 254:1779.
Dunham, S.P. and J. Bruce (2004) Gene 332:97.
Onetto-Pothier, N. et al. (1990) Blood 75:59.
Hayashida, K. et al. (1990) Proc. Natl. Acad. Sci. 87:9655.
Pelley, J.L. et al. (2007) Exp. Hematol. 35:1483.
Sprague, W.S. et al. (2005) J. Comp. Pathol. 133:136.
Dunham, S.P. and J. Bruce (2004) Gene 332:97.

Long Name

Granulocyte Macrophage Growth Factor

Entrez Gene IDs

1437 (Human); 12981 (Mouse); 116630 (Rat); 397208 (Porcine); 403923 (Canine); 493805 (Feline)

Alternate Names

colony stimulating factor 2 (granulocyte-macrophage); Colony-stimulating factor; CSF; CSF2; CSF-2; GMCSF; GM-CSF; GMCSFgranulocyte-macrophage colony-stimulating factor; granulocyte-macrophage colony stimulating factor; MGC131935; MGC138897; Molgramostim; molgramostin; Sargramostim