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PLoS One. 2014 Apr 21;9(4):e95560. doi: 10.1371/journal.pone.0095560. eCollection 2014.

Birth of healthy offspring following ICSI in in vitro-matured common marmoset (Callithrix jacchus) oocytes.

Author information

1
Department of Applied Developmental Biology, Central Institute for Experimental Animals, Kawasaki-ku, Kawasaki, Kanagawa, Japan; Department of Biochemistry, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
2
Department of Oncology, Juntendo University Nerima Hospital, Nerima-ku, Tokyo, Japan.
3
Marmoset Research Department, Central Institute for Experimental Animals, Kawasaki-ku, Kawasaki, Kanagawa, Japan.
4
Department of Applied Developmental Biology, Central Institute for Experimental Animals, Kawasaki-ku, Kawasaki, Kanagawa, Japan.
5
Department of Biomedical Research, Central Institute for Experimental Animals, Kawasaki-ku, Kawasaki, Kanagawa, Japan.
6
Altair Corporation, Kohoku-ku, Yokohama-shi, Kanagawa, Japan.
7
Department of Physiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
8
Department of Biochemistry, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
9
Department of Applied Developmental Biology, Central Institute for Experimental Animals, Kawasaki-ku, Kawasaki, Kanagawa, Japan; Keio Advanced Research Center, Keio University, Shinjuku-ku, Tokyo, Japan.

Abstract

Intracytoplasmic sperm injection (ICSI), an important method used to treat male subfertility, is applied in the transgenic technology of sperm-mediated gene transfer. However, no study has described successful generation of offspring using ICSI in the common marmoset, a small non-human primate used as a model for biomedical translational research. In this study, we investigated blastocyst development and the subsequent live offspring stages of marmoset oocytes matured in vitro and fertilized by ICSI. To investigate the optimal timing of performing ICSI, corrected immature oocytes were matured in vitro and ICSI was performed at various time points (1-2 h, 2-4 h, 4-6 h, 6-8 h, and 8-10 h after extrusion of the first polar body (PB)). Matured oocytes were then divided randomly into two groups: one was used for in vitro fertilization (IVF) and the other for ICSI. To investigate in vivo development of embryos followed by ICSI, 6-cell- to 8-cell-stage embryos and blastocysts were nonsurgically transferred into recipient marmosets. Although no significant differences were observed in the fertilization rate of blastocysts among ICSI timing after the first PB extrusion, the blastocyst rate at 1-2 h was lowest among groups at 2-4 h, 4-6 h, 6-8 h, and 8-10 h. Comparing ICSI to IVF, the fertilization rates obtained in ICSI were higher than in IVF (p>0.05). No significant difference was noted in the cleaved blastocyst rate between ICSI and IVF. Following the transfer of 37 ICSI blastocysts, 4 of 20 recipients became pregnant, while with the transfer of 21 6-cell- to 8-cell-stage ICSI embryos, 3 of 8 recipients became pregnant. Four healthy offspring were produced and grew normally. These are the first marmoset offspring produced by ICSI, making it an effective fertilization method for marmosets.

PMID:
24751978
PMCID:
PMC3994092
DOI:
10.1371/journal.pone.0095560
[Indexed for MEDLINE]
Free PMC Article

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