Application of Mouse Parthenogenetic Haploid Embryonic Stem Cells as a Substitute of Sperm.
J Vis Exp
; (165)2020 11 19.
Article
em En
| MEDLINE
| ID: mdl-33283788
ABSTRACT
In organisms with sexual reproduction, germ cells are the source of totipotent cells that develop into new individuals. In mice, fertilization of an oocyte by a spermatozoon creates a totipotent zygote. Recently, several publications have reported that haploid embryonic stem cells (haESCs) can be a substitute for gametic genomes and contribute to embryos, which develop into mice. Here, we present a protocol to apply parthenogenetic haESCs as a substitute of sperm to construct embryos by intracytoplasmic injection into oocytes. This protocol consists of steps for preparing haESCs as sperm replacement, for injection of haESC chromosomes into oocytes, and for culture of semi-cloned embryos. The embryos can yield fertile semi-cloned mice after embryo transfer. Using haESCs as sperm replacement facilitates genome editing in the germline, studies of embryonic development, and investigation of genomic imprinting.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Partenogênese
/
Espermatozoides
/
Células-Tronco Embrionárias Murinas
/
Haploidia
Limite:
Animals
/
Pregnancy
Idioma:
En
Revista:
J Vis Exp
Ano de publicação:
2020
Tipo de documento:
Article