Paper Information

Journal:   INTERNATIONAL JOURNAL OF FERTILITY AND STERILITY   SUMMER 2011 , Volume 5 , Number SUPPLEMENT 1; Page(s) 25 To 25.
 
Paper: 

ANDROLOGY: EFFECTS OF RECIPIENT MOUSE STRAIN, SEX AND GONADAL STATUS ON THE OUTCOME OF TESTIS TISSUE XENOGRAFTING

 
 
Author(s):  ABBASI S.*, HONAR AMOUZ A.
 
* DEPARTMENT OF COMPARATIVE BIOLOGY & EXPERIMENTAL MEDICINE, FACULTY OF VETERINARY MEDICINE, UNIVERSITY OF CALGARY, CALGARY, CANADA
 
Abstract: 

Background: The aim of the present study was to examine factors that may affect the outcome of testis tissue xenografting. Recipient factors were examined by grafting small fragments of testis tissue from newborn piglets under the back skin of immunodeficient mice of different strains [severe combined immunodeficiency (SCID) vs. nude), sex (male vs. female) and gonadal status (intact vs. gonadectomised) using a factorial design (eight groups; n=7 mice per group].
Materials and Methods: Recipient mice were killed after 8 months to compare the gross and histological attributes of the recovered grafts.
Results: Overall, approximately 94% of grafts were recovered. Gonadectomy of male or female recipients did not affect any of the measured outcomes of testis tissue xenografting, therefore data were pooled. Overall, in terms of sex, male mice and, in terms of strain, SCID mice tended to show higher gross and histological development of grafts. The group of female nude mice had the lowest graft recovery rate (75%) compared with the other groups (95-100%; p<0.05). The grafts from male SCID mice were, on average the largest and had the highest percentage of spermatozoa-containing seminiferous tubules among all the groups (p<0.05).
Conclusion: These results suggest that male SCID mice provide a suitable recipient model for testis tissue xenografting and that the mice do not need to be castrated for optimal results.

 
Keyword(s): IMMUNODEFICIENT MICE, PIG, SEVERE COMBINED IMMUNODEFICIENCY (SCID)
 
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