Abstract:
:To enrich bovine gonocytes from cryopreserved testicular tissues, the cryoprotection effects of the freezing media containing knockout serum replacement (KSR) were examined. Using Minimum essential medium (MEM) + 10% dimethyl sulfoxide (Me2SO) as the basic medium, calf testicular tissues were cryopreserved in media containing 0, 5, 10, 20, 40, 90% KSR and 5% fetal bovine serum (FBS) respectively. Morphologically, the seminiferous cords and interstitium were well preserved in all groups. The gonocytes were all glial cell line-derived neurotrophic factor (GDNF) family receptor α-1 (GFRα-1) positive. The recovery rates in all KSR groups were higher than that of the 10% Me2SO group, while comparable to the 5% FBS group. The enriched gonocytes expressed gonocyte marker GFRα-1 typically. Collectively, supplementation of 5-10% KSR can achieve comparable cryoprotective effects with using 5% FBS, which is useful in future study due to its defined formulation that is more consistent in quality and stable in supply.
journal_name
Cryobiologyjournal_title
Cryobiologyauthors
Jiang Y,Zhu WQ,Zhu XC,Cai NN,Yang R,Cai H,Zhang XMdoi
10.1016/j.cryobiol.2020.01.010subject
Has Abstractpub_date
2020-02-01 00:00:00pages
255-257eissn
0011-2240issn
1090-2392pii
S0011-2240(19)30506-1journal_volume
92pub_type
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