TRA-1-60 (Podocalyxin) Monoclonal Antibody (TRA-1-60), eBioscience™, Invitrogen™

Description

• The TRA-1-60 antibody recognizes a protein expressed on undifferentiated human embryonic stem cells (ES), embyronal carcinoma cells (EC), and embryonic germ cells (EG)
• Like other stem cell specific markers, the epitope recognized by the TRA-1-60 antibody is lost upon cell differentiation
• Contrary to early reports that the TRA-1-60 epitope can be destroyed by neuraminidase digestion, new strudies have shown that TRA-1-60 recognizes a neurominidase resistent antigen
• The TRA-1-60 antibody is known to specifically recognize a carbohydrate epitope on a keratan sulfated glycoprotein recently identified as podocalyxin, a member of the CD34-related family of sialomucins
• Podocalyxin is a transmembrane glycoprotein originally identified on epithelial glomerular cells known as podocytes, and the protein has also been implicated in the development of aggressiveness in a variety of cancers, including breast and prostate cancer
• TRA-1-60 is a cell surface antigen, expressed along with SSEA-3, SSEA-4 and TRA-1-81 in human embryonic stem cells, embryonal carcinoma cells and induced pluripotent stem cells (iPS)
• These surface markers are lost during the differentiation process
• In contrast, SSEA-1 is absent in undifferentiated human stem cells but is present on the cell surface after retinoic acid mediated differentiation.