| RRC ID |
57049
|
| 著者 |
Mizushima S, Hiyama G, Shiba K, Inaba K, Dohra H, Ono T, Shimada K, Sasanami T.
|
| タイトル |
The birth of quail chicks after intracytoplasmic sperm injection.
|
| ジャーナル |
Development
|
| Abstract |
Intracytoplasmic sperm injection (ICSI) has been successfully used to produce offspring in several mammalian species including humans. However, ICSI has not been successful in birds because of the size of the egg and difficulty in mimicking the physiological polyspermy that takes place during normal fertilization. Microsurgical injection of 20 or more spermatozoa into an egg is detrimental to its survival. Here, we report that injection of a single spermatozoon with a small volume of sperm extract (SE) or its components led to the development and birth of healthy quail chicks. SE contains three factors - phospholipase Cζ (PLCZ), aconitate hydratase (AH) and citrate synthase (CS) - all of which are essential for full egg activation and subsequent embryonic development. PLCZ induces an immediate, transient Ca(2+) rise required for the resumption of meiosis. AH and CS are required for long-lasting, spiral-like Ca(2+) oscillations within the activated egg, which are essential for cell cycle progression in early embryos. We also found that co-injection of cRNAs encoding PLCZ, AH and CS support the full development of ICSI-generated zygotes without the use of SE. These findings will aid our understanding of the mechanism of avian fertilization and embryo development, as well as assisting in the manipulation of the avian genome and the production of transgenic and cloned birds.
|
| 巻・号 |
141(19)
|
| ページ |
3799-806
|
| 公開日 |
2014-10-1
|
| DOI |
10.1242/dev.111765
|
| PII |
141/19/3799
|
| PMID |
25249465
|
| MeSH |
Aconitate Hydratase / analysis
Animals
Calcium / metabolism
Chromatography, Liquid
Citrate (si)-Synthase / analysis
Fertilization / physiology*
Immunoblotting
Male
Microscopy, Fluorescence
Ovum / metabolism
Phosphoinositide Phospholipase C / analysis
Quail / physiology*
Sperm Injections, Intracytoplasmic / methods
Sperm Injections, Intracytoplasmic / veterinary*
Spermatozoa / chemistry*
Tandem Mass Spectrometry
Treatment Outcome
|
| IF |
5.763
|
| 引用数 |
18
|
| リソース情報 |
| ニワトリ・ウズラ |
|
