WB, IP
H
Endogenous
50
Rabbit
#P78395
23532
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:200 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala167 of human PRAME protein. Antibodies are purified by protein A and peptide affinity chromatography.
Background
Cancer/testis antigens (CTAs) are a family of more than 100 proteins whose normal expression is largely restricted to immune privileged germ cells of the testis, ovary, and trophoblast cells of the placenta. Although most normal somatic tissues are void of CTA expression, due to epigenetic silencing of gene expression, their expression is upregulated in a wide variety of human solid and liquid tumors (1,2). As such, CTAs have garnered much attention as attractive targets for a variety of immunotherapy-based approaches to selectively attack tumors (3).
PRAME (preferentially expressed antigen in melanoma) is a cancer/testis antigen not normally expressed in any tissues except testis, but is upregulated in tumors. PRAME is expressed in melanoma cells and is recognized by cytolytic T-cells (4). It is also upregulated in other diseases, such as synovial sarcoma (5), NSCLC (6), and breast cancer, where it is thought to contribute to tumorigenesis and metastasis (7). PRAME is also highly expressed in liquid tumors such as AML (8) and can be predictive of clinical outcome in some circumstances (9). PRAME and other cancer/testis antigens are currently being pursued as novel immunotherapy targets and diagnostic biomarkers (10).
- Caballero, O.L. and Chen, Y.T. (2009) Cancer Sci 100, 2014-21.
- De Smet, C. et al. (1999) Mol Cell Biol 19, 7327-35.
- Gjerstorff, M.F. et al. (2015) Oncotarget 6, 15772-87.
- Ikeda, H. et al. (1997) Immunity 6, 199-208.
- Iura, K. et al. (2017) Hum Pathol 61, 130-139.
- Gunn, R.B. and Fröhlich, O. (1989) Methods Enzymol 173, 54-80.
- Sun, Z. et al. (2016) Gene 594, 160-164.
- Qin, Y.Z. et al. (2017) Oncol Lett 13, 2823-2830.
- Oehler, V.G. et al. (2009) Blood 114, 3299-308.
- Salmaninejad, A. et al. (2016) Immunol Invest 45, 619-40.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Western Blot Buffer
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v nonfat dry milk, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
Applications Key
WB: Western Blotting IP: Immunoprecipitation
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
Trademarks and Patents
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