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Generation and characterization of an estrogen receptor alpha‐iCre knock‐in mouse
Author(s) -
Park Chan Jin,
Chen Guanglin,
Koo Yongbum,
Lin PoChing P.,
Cacioppo Joseph A.,
Prohaska Hailey,
Ko CheMyong J.
Publication year - 2017
Publication title -
genesis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.093
H-Index - 110
eISSN - 1526-968X
pISSN - 1526-954X
DOI - 10.1002/dvg.23084
Subject(s) - biology , cre recombinase , estrogen receptor alpha , genetically modified mouse , estrogen receptor , transgene , alpha (finance) , microbiology and biotechnology , reporter gene , chimera (genetics) , knockout mouse , gene , gene expression , genetics , medicine , construct validity , nursing , cancer , breast cancer , patient satisfaction
Summary Two estrogen receptors, ESR1 and ESR2, are responsible for the classical actions of estrogens in mammalian species. They display different spatiotemporal expression patterns and nonoverlapping functions in various tissues and physiological conditions. In this study, a novel knock‐in mouse line that expresses codon‐improved Cre recombinase (iCre) under regulation of the natural Esr1 promoter ( Esr1 –iCre) was developed. Functional characterization of iCre expression by crossing them with reporter lines (ROSA26‐lacZ or Ai9‐RFP) showed that iCre is faithfully expressed in Esr1 ‐lineage cells. This novel transgenic mouse line will be a useful animal model for lineage‐tracing Esr1 ‐expressing cells, selective gene ablation in the Esr1 ‐lineage cells and for generating global Esr1 knockout mice.

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