Hartman Institute for Therapeutic Organ Regeneration

Genetic targeting of the endoderm with claudin-6CreER.

TitleGenetic targeting of the endoderm with claudin-6CreER.
Publication TypeJournal Article
Year of Publication2008
AuthorsAnderson WJ, Zhou Q, Alcalde V, Kaneko OF, Blank LJ, Sherwood RI, J Guseh S, Rajagopal J, Melton DA
JournalDev Dyn
Volume237
Issue2
Pagination504-12
Date Published2008 Feb
ISSN1058-8388
KeywordsAnimals, 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>

DOI10.1002/dvdy.21437
Alternate JournalDev Dyn
PubMed ID18213590
PubMed Central IDPMC2665265
Grant ListK99 DK077445 / DK / NIDDK NIH HHS / United States
/ HHMI / Howard Hughes Medical Institute / United States
5U01DK072505-02 / DK / NIDDK NIH HHS / United States

Weill Cornell Medicine
Hartman Institute for Therapeutic Organ Regeneration
1300 York Ave, Box 136 New York, NY 10065