Oktay K, Newton H, Gosden RG. Transplantation of cryopreserved human ovarian tissue results in follicle growth initiation in SCID mice.
Fertil Steril 2000;
73:599-603. [PMID:
10689020 DOI:
10.1016/s0015-0282(99)00548-8]
[Citation(s) in RCA: 128] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE
To determine the long-term survival of frozen-thawed human ovarian tissue as xenografts in severe-combined-immunodeficiency (SCID) mice.
DESIGN
Animal study.
SETTING
Animal and laboratory facilities at an academic center.
PATIENT(S)
Ovarian tissue obtained from a 27-year-old woman.
INTERVENTION(S)
Grafting of frozen-thawed ovarian tissue in SCID mice for 22 weeks.
MAIN OUTCOME MEASURE(S)
Follicle counts and growth by morphology and PCNA staining in frozen-thawed grafts and fresh controls.
RESULT(S)
All three grafts were recovered intact after 22 weeks. Their stroma was devoid of necrotic cells and contained healthy follicles. The ratio of primordial-total follicles decreased significantly after grafting (0.94 +/- 0.02 to 0.87 +/- 0. 01, control vs. grafting). Compared with controls, after 22 weeks of grafting, a higher percentage of follicles had initiated growth (5.6 +/- 2.4 vs. 12.5 +/- 1.9), but there was still a significant number of primordial follicles/graft (75 +/- 6.8). Follicle stages were similar between two groups; only primordial and one-layer follicles were seen in the xenografts. In the controls, except for one two-layer follicle, the most advanced follicle was at the one-layer stage.
CONCLUSION(S)
Human primordial follicles survive freeze-thaw and long-term xenografting procedures and retain their capacity to initiate growth. These findings encourage future attempts for human autologous ovarian transplantation.
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