Title |
ALDH1A1 provides a source of meiosis-inducing retinoic acid in mouse fetal ovaries
|
---|---|
Published in |
Nature Communications, February 2016
|
DOI | 10.1038/ncomms10845 |
Pubmed ID | |
Authors |
Josephine Bowles, Chun-Wei Feng, Kim Miles, Jessica Ineson, Cassy Spiller, Peter Koopman |
Abstract |
Substantial evidence exists that during fetal ovarian development in mammals, retinoic acid (RA) induces germ cells to express the pre-meiotic marker Stra8 and enter meiosis, and that these effects are prevented in the fetal testis by the RA-degrading P450 enzyme CYP26B1. Nonetheless, the role of RA has been disputed principally because germ cells in embryos lacking two major RA-synthesizing enzymes, ALDH1A2 and ALDH1A3, remain able to enter meiosis. Here we show that a third RA-synthesizing enzyme, ALDH1A1, is expressed in fetal ovaries, providing a likely source of RA in the absence of ALDH1A2 and ALDH1A3. In ovaries lacking ALDH1A1, the onset of germ cell meiosis is delayed. Our data resolve the conundrum posed by conflicting published data sets and reconfirm the model that meiosis is triggered by endogenous RA in the developing ovary. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 1 | 25% |
Australia | 1 | 25% |
Japan | 1 | 25% |
Unknown | 1 | 25% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 2 | 50% |
Members of the public | 2 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Korea, Republic of | 1 | 1% |
United Kingdom | 1 | 1% |
Germany | 1 | 1% |
Unknown | 70 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 18 | 25% |
Researcher | 14 | 19% |
Student > Bachelor | 9 | 12% |
Student > Master | 5 | 7% |
Professor > Associate Professor | 4 | 5% |
Other | 8 | 11% |
Unknown | 15 | 21% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 28 | 38% |
Agricultural and Biological Sciences | 19 | 26% |
Medicine and Dentistry | 3 | 4% |
Nursing and Health Professions | 2 | 3% |
Veterinary Science and Veterinary Medicine | 2 | 3% |
Other | 5 | 7% |
Unknown | 14 | 19% |