Title | Genetic targeting of the endoderm with claudin-6CreER. |
Publication Type | Journal Article |
Year of Publication | 2008 |
Authors | Anderson WJ, Zhou Q, Alcalde V, Kaneko OF, Blank LJ, Sherwood RI, J Guseh S, Rajagopal J, Melton DA |
Journal | Dev Dyn |
Volume | 237 |
Issue | 2 |
Pagination | 504-12 |
Date Published | 2008 Feb |
ISSN | 1058-8388 |
Keywords | Animals, Cell Lineage, Claudins, DNA Primers, Endoderm, Galactosides, Gene Expression Regulation, Developmental, Genotype, In Situ Hybridization, Indoles, Integrases, Membrane Proteins, Mice, Mice, Knockout, Reverse Transcriptase Polymerase Chain Reaction |
Abstract | <p>A full description of the ontogeny of the beta cell would guide efforts to generate beta cells from embryonic stem cells (ESCs). The first step requires an understanding of definitive endoderm: the genes and signals responsible for its specification, proliferation, and patterning. This report describes a global marker of definitive endoderm, Claudin-6 (Cldn6). We report its expression in early development with particular attention to definitive endoderm derivatives. To create a genetic system to drive gene expression throughout the definitive endoderm with both spatial and temporal control, we target the endogenous locus with an inducible Cre recombinase (Cre-ER(T2)) cassette. Cldn6 null mice are viable and fertile with no obvious phenotypic abnormalities. We also report a lineage analysis of the fate of Cldn6-expressing embryonic cells, which is relevant to the development of the pancreas, lung, and liver.</p> |
DOI | 10.1002/dvdy.21437 |
Alternate Journal | Dev Dyn |
PubMed ID | 18213590 |
PubMed Central ID | PMC2665265 |
Grant List | K99 DK077445 / DK / NIDDK NIH HHS / United States / HHMI / Howard Hughes Medical Institute / United States 5U01DK072505-02 / DK / NIDDK NIH HHS / United States |