Acta Veterinaria et Zootechnica Sinica ›› 2024, Vol. 55 ›› Issue (2): 598-606.doi: 10.11843/j.issn.0366-6964.2024.02.017

• ANIMAL BIOTECHNOLOGY AND REPRODUCTION • Previous Articles     Next Articles

The Effect of Splicing Factor hnRNPF on Spermatogenesis in Mongolian Horse

WENG Yajuan, LI Bei*, DUGARJAVIIN Manglai, XUE Jianing, Terigele, SONG Dailing, WANG Guoqing, LIN Ya'nan   

  1. Equine Research Center, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
  • Received:2023-08-15 Online:2024-02-23 Published:2024-02-27

Abstract: The aim of this study was to investigate the effect of alternative splicing factor heterogeneous nuclear ribonucleoprotein F (hnRNPF) on spermatogenesis in Mongolian horses. Testicular sertoli cells were isolated and cultured from 3-year-old Mongolian horse. The hnRNPF overexpression lentiviral vector was constructed and transfected into the sertoli cells of Mongolian horse testis. CCK-8 was used to detect the proliferation of cells at 0 h, 24 h, 48 h and 72 h after transfection, and the optimal infection time was determined with 3 duplication per group. The RNA of transfected and untransfected Mongolian horse sertoli cells was extracted, and the primers of genes known to be related to spermatogenesis were designed for qRT-PCR to detect the expression of spermatogenesis-related genes in the two types of cells. The results of agarose gel electrophoresis showed that the hnRNPF lentivirus overexpression vector was successfully constructed. CCK-8 assay showed that the cells transfected with the expression lentiviral vector had the highest activity at 72 hours, and the activity of transfected cells was higher than that of untransfected cells, indicating that the overexpression of hnRNPF could promote the proliferation of Mongolian horse sertoli cells.qRT-PCR results showed that the expression levels of spermatogenesis-related genes (PKMYT1, CDC25C, YWHAZ, BUB1, BTRC, CCNE1, CALM1, PLK1, REC8, MAPK3, and ADCY7) were significantly different between the two types of cells. All were highly expressed in cells transfected with hnRNPF overexpression vector. The results suggest that hnRNPF may directly or indirectly promote spermatogenesis in Mongolian horses, which provides a new idea for improving the sperm count and semen quality of Mongolian horses.

Key words: Mongolian horse, hnRNPF, spermatogenesis, alternative splicing

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