Technical Data
CDX2 (CDX2, Caudal Type Homeobox Transcription Factor 2, HGNC:1806, CDX-3, CDX3)
CDX2 is a caudal type homeobox gene that encodes an intestine-specific transcription factor that is expressed early in intestinal development and may be involved in the regulation of proliferation and differentiation of intestinal epithelial cells. It is expressed in the nuclei of epithelial cells throughout the intestine, from duodenum to rectum. The CDX2 protein is expressed in primary and metastatic colorectal carcinomas and has also been demonstrated in the intestinal metaplasia of the stomach and intestinal-type gastric cancer, while it is not expressed in the normal gastric mucosa. Studies have shown that CDX2 is superior marker compared to CK20.

Suitable for use in Immunohistochemistry. Other applications not tested.

Recommended Dilution:
Immunohistochemistry (Paraffin): 1:25-1:50. ABC method; incubation period of 60 min at RT. FFPE tissue sections require high temperature antigen unmasking with 1mM EDTA buffer, pH 8.0 prior to immunostaining.
Immunohistochemistry: 1:10-1:2000
Optimal dilutions to be determined by the researcher.

Recommended Positive Control: Colon cancer

Storage and Stability:
May be stored at 4C. For long-term storage, aliquot and store at 4C. Do not freeze. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.
500ul4C Do Not FreezeBlue IceHumanMouse
Not Determined
Prokaryotic recombinant protein corresponding to the 180 amino acid near the N-terminal region of the human CDX2 molecule. Cellular Localization: Nuclear
Tissue culture supernatant
Supplied as a liquid, 0.05% sodium azide.
Recognizes human CDX2.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
11. Bai YQ et al. Ectopic expression of homeodomain protein CDX2 in intestinal metaplasia and carcinomas of the stomach. Cancer Lett 176:47-55 (2002). 2. Hinoi T et al. Loss of CDX2 expression and microsatellite instability are prominent features of large cell minimally differentiated carcinomas of the colon. Am J Pathol 159:2239-48 (2001). 3. Silberg DG et al. Cdx1 and cdx2 expression during intestinal development. Gastroenterology 119:961-71 (2000).