文献类型： 外文期刊

作者： Bai, Jiachen ¹ ; Zhou, Guizhen ² ; Hao, Shaopeng ³ ; Liu, Yucheng ³ ; Guo, Yanhua ³ ; Wang, Jingjing ³ ; Liu, Hongtao ³ ; Wang, Longfei ² ; Li, Jun ⁵ ; Liu, Aiju ² ; Sun, Wendell Q. ¹ ; Wan, Pengcheng ³ ; Fu, Xiangwei ² ;

作者机构： 1.Univ Shanghai Sci & Technol, Inst Biothermal Sci & Technol, Sch Hlth Sci & Engn, Shanghai, Peoples R China

2.China Agr Univ, Coll Anim Sci & Technol, Natl Engn Lab Anim Breeding, Beijing Key Lab Anim Genet Improvement, Beijing, Peoples R China

3.Xinjiang Acad Agr & Reclamat Sci, Inst Anim Husb & Vet Sci, State Key Lab Sheep Genet Improvement & Hlth Bree, Shihezi, Peoples R China

4.Hebei Univ Engn, Sch Life Sci & Food Engn, Dept Anim Sci, Handan, Peoples R China

5.Hebei Med Univ, Reprod Med Ctr, Dept Reprod Med, Hosp 1, Shijiazhuang, Peoples R China

关键词： sperm; programmed freezing; multi-omics; FCGR1A; fertilization; sheep

期刊名称：FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY （ 影响因子：5.5； 五年影响因子：5.8 ）

ISSN： 2296-634X

年卷期： 2023 年 11 卷

页码：

收录情况： SCI

摘要： Semen cryopreservation is a promising technology employed in preserving highquality varieties in animal husbandry and is also widely applied in the human sperm bank. However, the compromised qualities, such as decreased sperm motility, damaged membrane structure, and reduced fertilization competency, have significantly hampered the efficient application of this technique. Therefore, it is imperative to depict various molecular changes found in cryopreserved sperm and identify the regulatory network in response to the cryopreservation stress. In this study, semen was collected from three Chinese Merino rams and divided into untreated (fresh semen, FS) and programmed freezing (programmed freezing semen, PS) groups. After measuring different quality parameters, the ultra-low RNA-seq and tandem mass tag-based (TMT) proteome were conducted in both the groups. The results indicated that the motility (82.63% +/- 3.55% vs. 34.10% +/- 2.90%, p < 0.05) and viability (89.46% +/- 2.53% vs. 44.78% +/- 2.29%, p < 0.05) of the sperm in the FS group were significantly higher compared to those in the PS group. In addition, 45 upregulated and 291 downregulated genes, as well as 30 upregulated and 48 downregulated proteins, were found in transcriptomics and proteomics data separately. Moreover, three integrated methods, namely, functional annotation and enrichment analysis, Pearson's correlation analysis, and two-way orthogonal partial least squares (O2PLS) analysis, were used for further analysis. The results suggested that various differentially expressed genes and proteins (DEGs and DEPs) were mainly enriched in leishmaniasis and hematopoietic cell lineage, and Fc gamma receptor Ia (FCGR1A) was significantly downregulated in cryopreserved sperm both at mRNA and protein levels in comparison with the fresh counterpart. In addition, top five genes (FCGR1A, HCK, SLX4, ITGA3, and BET1) and 22 proteins could form a distinct network in which genes and proteins were significantly correlated (p < 0.05). Interestingly, FCGR1A also appeared in the top 25 correlation list based on O2PLS analysis. Hence, FCGR1A was selected as the most potential differentially expressed candidate for screening by the three integrated multi-omics analysis methods. In addition, Pearson's correlation analysis indicated that the expression level of FCGR1A was positively correlated with sperm motility and viability. A subsequent experiment was conducted to identify the biological role of FCGR1A in sperm function. The results showed that both the sperm viability (fresh group: 87.65% +/- 4.17% vs. 75.8% +/- 1.15%, cryopreserved group: 48.15% +/- 0.63% vs. 42.45% +/- 2.61%, p < 0.05) and motility (fresh group: 83.27% +/- 4.15% vs. 70.41% +/- 1.07%, cryopreserved group: 45.31% +/- 3.28% vs. 35.13% +/- 2.82%, p < 0.05) were significantly reduced in fresh and frozen sperm when FCGR1A was blocked. Moreover, the cleavage rate of embryos fertilized by FCGR1A-blocked sperm was noted to be significantly lower in both fresh (95.28% +/- 1.16% vs. 90.44% +/- 1.56%, p < 0.05) and frozen groups (89.8% +/- 1.50% vs. 82.53% +/- 1.53%, p < 0.05). In conclusion, our results revealed that the downregulated membrane protein FCGR1A can potentially contribute to the reduced sperm fertility competency in the cryopreserved sheep sperm.