Cryopreservation of human ovarian tissue: effect of spontaneous and initiated ice formation

REPRODUCTIVE BIOMEDICINE ONLINE

卷:16

Article

Isachenko, Vladimir¹  Isachenko, Evgenia¹  Reinsberg, Jochen¹  Montag, Markus¹  Braun, Feodor¹  van der Ven, Hans¹ 

[1] Univ Bonn, Dept Gynecol Endocrinol & Reprod Med, D-53105 Bonn, Germany

关键词: cryopreservation;    follicles;    hormones;    human ovary;    ice formation;    seeding;   

DOI  :  10.1016/S1472-6483(10)60593-7

来源: Elsevier

【 摘 要 】

This investigation compared conventional freezing of human ovarian tissue using either spontaneous or initiated ('seeded') ice formation. Biopsies of ovarian tissue were obtained from women with indications for chemotherapy or radiotherapy. Small pieces of experimental tissue were randomly distributed into three groups that were then subjected to different treatments prior to culture in vitro for 16 days: the control group, no treatment, cultured immediately after biopsy (group 1); cryopreservation/thawing with spontaneous ice formation (group 2); and cryopreservation/thawing with initiated ice formation (group 3). Follicle viability and hormonal activity were then evaluated. There was no significant difference between groups regarding the concentration of oestradiol 17-beta in the culture supernatant, whereas progesterone concentration was significantly (P < 0.05) higher in group 1 compared with group 2 or 3. There was a significant (P < 0.05) difference in primordial and primary follicle density between all of the groups (group 1 having the highest and group 2 having the lowest) and group 2 had significantly (P < 0.05) fewer normal grade follicles than the other two groups. For optimal cryopreservation of human ovarian tissue, the protocol of conventional freezing should therefore include a step of initiated ice formation.

【 授权许可】

Free