Acrosin-binding protein (ACRBP) and triosephosphate isomerase (TPI) are good markers to predict boar sperm freezing capacity

被引:89
作者
Vilagran, Ingrid [1 ]
Castillo, Judit [2 ,3 ]
Bonet, Sergi [1 ]
Sancho, Silvia [1 ]
Yeste, Marc [4 ]
Estanyol, Josep M. [5 ,6 ]
Oliva, Rafael [2 ,3 ]
机构
[1] Univ Girona, Inst Food & Agr Technol, Dept Biol, Girona, Spain
[2] Univ Barcelona, Fac Med, IDIBAPS, Human Genet Res Grp, Barcelona, Spain
[3] Hosp Clin Barcelona, Biochem & Mol Genet Serv, Barcelona, Spain
[4] Autonomous Univ Barcelona, Unit Anim Reprod, Dept Anim Med & Surg, Fac Vet Med, Barcelona, Spain
[5] Univ Barcelona, Sci Ctr CCiTUB, Barcelona, Spain
[6] Univ Barcelona, Technol Ctr CCiTUB, Barcelona, Spain
关键词
Cryopreservation; Boar sperm; GFE; PFE; ACRBP; TPI; DIFFERENCE GEL-ELECTROPHORESIS; MAMMALIAN SPERM; SPERMATOZOA; IDENTIFICATION; CRYOPRESERVATION; PROACROSIN; VIABILITY; SUBPOPULATIONS; ACTIVATION; EXPRESSION;
D O I
10.1016/j.theriogenology.2013.05.006
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Sperm cryopreservation is the most efficient method for storing boar sperm samples for a long time. However, one of the inconveniences of this method is the large variation between and within boars in the cryopreservation success of their sperm. The aim of the present work was thus to find reliable and useful predictive biomarkers of the good and poor capacity to withstand the freeze-thawing process in boar ejaculates. To find these biomarkers, the amount of proteins present in the total proteome in sperm cells were compared between good freezability ejaculates (GFE) and poor freezability ejaculates (PFE) using the two-dimensional difference gel electrophoresis technique. Samples were classified as GFE and PFE using progressive motility and viability of the sperm at 30 and 240 minutes after thawing, and the proteomes from each group, before starting cryopreservation protocols, were compared. Because two proteins, acrosin binding protein (ACRBP) and triosephosphate isomerase (PI), presented the highest significant differences between GFE and PFE groups in two-dimensional difference gel electrophoresis assessment, Western blot analyses for ACRBP and TPI were also performed for validation. ACRBP normalized content was significantly lower in PFE than in GFE (P < 0.05), whereas the TPI amounts were significantly lower in GFE (P < 0.05) than in PFE. The association of ACRBP and TPI with postthaw sperm viability and motility was confirmed using Pearson's linear correlation. In conclusion, ACRBP and TPI can be used as markers of boar sperm freezability before starting the cryopreservation procedure, thereby avoiding unnecessary costs involved in this practice. (c) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码:443 / 450
页数:8
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