ASSAN

Human CLDN18.1-FLAG-CHO-S Stable Pool


Catalog Number Product Size Price
C1017 Human CLDN18.1-FLAG-CHO-S Stable Pool 2 vials $4950 Order

Product Specifications


Catalog Number C1017
Cell Line Name Human CLDN18.1-FLAG-CHO-S Stable Pool
Accession Number Full-length human CLDN18.1(Accession # NP_057453) with a FLAG tag(ADYKDDDK) inserted between V144 and T145
Host Cell Suspension CHO
Quantity Two vials of frozen cells (20x106 per vial)
Culture Medium 50% CD-CHO (ThermoFisher#10743-029), 50% Ex-Cell CHO 5 medium (Sigma#C0363), supplemented with 8mM L-Glutamine, 1xHT(ThermoFisher #11067-030), 1x Penicillin-Streptomycin, and 10ug/ml puromycin
Freezing Medium 90% FBS and 10% DMSO
Storage Liquid nitrogen upon receipt
Product Datasheet: Download PDF

Representative Data


A. Detection of human CLDN18.1-FLAG expression on Human CLDN18.1-FLAG-CHO-S cells using a mouse monoclonal antibody specific for the FLAG tag(DYKDDDK), followed by staining with the PE-anti-mouse IgG.

B. Detection of human CLDN18.2 expression on Human CLDN18.1-FLAG-CHO-S cells using a human monoclonal antibody specific for human CLDN18.2, followed by staining with the PE-anti-human IgG. No CLDN18.2 is detected on the cells.


Background


Claudin-18 (CLDN18) is a member of a large family of four-span transmembrane proteins called Claudins. These proteins are the essential components of the mammalian tight junctions (TJs) in epithelial cells. Claudin-18 has two splice variants, 18.1 and 18.2. While CLDN18.1 is specifically expressed in the lung tissue, CLDN18.2 expression in normal tissue is more restricted and is only detected in small patches of stomach mucosal. CLDN18.2 expression is elevated in many types of epithelial cancers including stomach, esophagus, pancreatic and ovarian cancers. The expression of CLDN18.2 is not only detected in primary tumors, but also in the metastatic sites. Therefore, CLDN18.2 is an ideal target for monoclonal antibody-based cancer therapies.

References

Tureci O. et al. Claudin-18 gene structure, regulation, and expression is evolutionary conserved in mammals. Gene. 481(2): 83-92. 2011.

Sahin U. et al. Claudin-18 Splice Variant 2 Is a Pan-Cancer Target Suitable for Therapeutic Antibody Development. Clin. Cancer Res. 14(23):7624-7634. 2008.

Niimi T. et al. Claudin-18, a Novel Downstream Target Gene for the T/EBP/NKX2.1 Homeodomain Transcription Factor, Encodes Lung- and Stomach-specific Isoforms Through Alternative Splicing. Mol. Cell. Biol. 21(21): 7380-7390. 2001.