biostudies-literatureUnknown27(7)Netherton JKNHMRCMale subfertility or infertility is a common condition often characterized by men producing a low number of sperm with poor quality. To gain insight into this condition, we performed a quantitative proteomic analysis of semen samples obtained from infertile and fertile men. At least 6 proteins showed significant differences in regulation of alternatively spliced isoforms. To investigate this link between aberrant alternative splicing and production of poor-quality spermatozoa, we overexpressed the hnrnpH/F-orthologue Glorund (Glo) in <i>Drosophila,</i> which was also found to be abundant in poor quality human sperm. Transgenic animals produced low numbers of morphologically defective spermatozoa and aberrant formation of the "dense body," an organelle akin to the mammalian manchette. FurthiScience110198https://www.ebi.ac.uk/biostudies/studies/S-EPMC11292545biostudies-literatureThe role of HnrnpF/H as a driver of oligoteratozoospermia.PMC11292545Ogle RACasagranda FVelkov TDominado NZhang XDMolloy MRobinson BRSilva Balbin Villaverde AIHime GRNetherton JKKrisp CBaker MAfalseThe role of HnrnpF/H as a driver of oligoteratozoospermia.Male subfertility or infertility is a common condition often characterized by men producing a low number of sperm with poor quality. To gain insight into this condition, we performed a quantitative proteomic analysis of semen samples obtained from infertile and fertile men. At least 6 proteins showed significant differences in regulation of alternatively spliced isoforms. To investigate this link between aberrant alternative splicing and production of poor-quality spermatozoa, we overexpressed the hnrnpH/F-orthologue Glorund (Glo) in <i>Drosophila,</i> which was also found to be abundant in poor quality human sperm. Transgenic animals produced low numbers of morphologically defective spermatozoa and aberrant formation of the "dense body," an organelle akin to the mammalian manchette. Furth2024-01-01T00:00:00Z2024 Jul2026-06-03T00:13:04.547Z2024-11-08T23:09:34.369ZS-EPMC112925453909217210.1016/j.isci.2024.110198