| First Author | Berland R | Year | 2010 |
| Journal | J Immunol | Volume | 185 |
| Issue | 12 | Pages | 7537-43 |
| PubMed ID | 21076064 | Mgi Jnum | J:167469 |
| Mgi Id | MGI:4868323 | Doi | 10.4049/jimmunol.1002173 |
| Citation | Berland R, et al. (2010) A conserved enhancer element differentially regulates developmental expression of CD5 in B and T cells. J Immunol 185(12):7537-43 |
| abstractText | We previously identified an enhancer element upstream of the mouse cd5 gene that was required in reporter assays for the induction of cd5 promoter activity by BCR cross-linking. This element is highly conserved in placental mammals. To determine its physiological role, we have now generated mice with a targeted deletion of the enhancer. The result is the loss of CD5 expression in peritoneal and splenic B-1a cells of adult mice and an inability to induce CD5 by cross-linking of the BCR on splenic B-2 cells. Surprisingly, CD5 expression on B-1a cells of neonatal mice was only minimally compromised. Cd5 enhancer deletion also had only a modest effect on CD5 expression in the T lineage. Thus, this enhancer provides age- and tissue-specific regulation of CD5 expression and is an example of the utilization of different modes of regulation of expression in T and B cells. |
