Offspring produced from heterotopic ovarian allografts in male and female recipient mice

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Title: Offspring produced from heterotopic ovarian allografts in male and female recipient mice
Author(s): Waterhouse, Tracey; Cox, Shae-Lee; Snow, Melanie; Jenkin, Graham; Shaw, Jill
Abstract: Studies on human ovarian xenografts and mouse allografts indicate that the male hormonal milieu and exogenous gonadotrophin administration stimulate antral follicle growth. However, it is not known whether oocytes produced under these conditions are developmentally competent. The objective of our study was to evaluate the developmental competence of oocytes produced in heterotopic mouse ovarian grafts placed in male and female recipient mice. Gonadotrophins were 7.5 IU pregnant mare serum gonadotrophin (PMSG) alone or 7.5 IU PMSG and 7.5 IU human chorionic gonadotrophin or were not given prior to oocyte collection. The developmental competence of oocytes was assessed by performing in vitro fertilisation and embryo transfer to recipients. When no gonadotrophins were given the cleavage rate was similar for oocytes collected from ovarian grafts in male and female recipients. Gonadotrophin treatment significantly (P < 0.05) increased two-cell formation by oocytes grown in female graft recipients but not in male recipients. Implantation rates, fetal development and the birth of live young were unaffected by the sex of the graft recipient or gonadotrophin treatment. Live offspring were produced from oocytes collected from ovarian grafts in male and female recipients treated with or without gonadotrophins. In conclusion, this work has shown that the hormonal environment of male mice can support the growth of oocytes in ovarian allografts and that these oocytes can produce live offspring.
Publication type: Journal article
Source: Reproduction, Vol. 127, no. 6 (Jun 2004), pp. 689-694
Publication year: 2004
FOR Code(s): 0601 Biochemistry and Cell Biology; 1114 Paediatrics and Reproductive Medicine; 1116 Medical Physiology
Keyword(s): Chorionic gonadotropin; Mice; Seric gonadotropin; Testosterone
Publisher: BioScientifica
ISSN: 1470-1626
Publisher URL: http://dx.doi.org/10.1530/rep.1.00081
Peer reviewed