MicroRNA‐targeting in spermatogenesis: Over‐expressions of microRNA‐23a/b‐3p and its affected targeting of the genes ODF2 and UBQLN3 in spermatozoa of patients with oligoasthenozoospermia. Abu-Halima, M., Belkacemi, A., Ayesh, B., Becker, L., Sindiani, A., Fischer, U., Hammadeh, M. E., Keller, A., & Meese, E. Andrology, 03, 2021.
MicroRNA‐targeting in spermatogenesis: Over‐expressions of microRNA‐23a/b‐3p and its affected targeting of the genes ODF2 and UBQLN3 in spermatozoa of patients with oligoasthenozoospermia [link]Paper  doi  abstract   bibtex   
Background Male infertility is a multifactorial syndrome with diverse phenotypic representations. MicroRNAs (miRNAs) are small, non‐coding RNAs that are involved in the post‐transcriptional regulation of gene expression. Altered abundance levels of ODF2 and UBQLN3 have been reported in patients with different spermatogenic impairments. However, the transcriptional regulation of these two genes by miR‐23a/b‐3p is still unclear. Objectives To investigate experimentally whether miR‐23a/b‐3p targets the genes ODF2 and UBQLN3 and whether this targeting impacts abundance levels of ODF2 and UBQLN3 in patients with oligoasthenozoospermia. Materials and methods A total of 92 men attending a fertility clinic were included in the study, including 46 oligoasthenozoospermic men and 46 age‐matched normozoospermic volunteers who served as controls. Reverse transcription‐quantitative PCR (RT‐qPCR), Western blot, and dual‐luciferase (Firefly‐Renilla) assays were used to validate the miRNAs and their target genes. Results RT‐qPCR revealed that miR‐23a/b‐3p was more abundant and ODF2 and UBQLN3 targets were less abundant in men with impaired spermatogenesis. Besides, Western blot shows that ODF2 and UBQLN3 protein levels were reduced in men with impaired spermatogenesis. In silico prediction and dual‐luciferase assays revealed that potential links exist between the higher abundance level of miR‐23a/b‐3p and the lower abundance level of ODF2 and UBQLN3 targets. Mutations in the miR‐23a/b‐3p‐binding site within the 3ˊUTRs (3ˊuntranslated regions) of ODF2 and UBQLN3 genes resulted in abrogated responsiveness to miR‐23a/b‐3p. Correlation analysis showed that sperm count, motility, and morphology were negatively correlated with miR‐23a/b‐3p and positively correlated with the lower abundance level of UBQLN3, while ODF lower abundance level was positively correlated with sperm motility. Conclusion Findings indicate that the higher abundance level of miR‐23a/b‐3p and the lower abundance level of ODF2 and UBQLN3 targets are associated with oligoasthenozoospermia and male subfertility.
@article{andr13004,
    author = {Abu-Halima, Masood and Belkacemi, Anouar and Ayesh, Basim and Becker, Lea and Sindiani, Amer and Fischer, Ulrike and Hammadeh, Mohamad Eid and Keller, Andreas and Meese, Eckart},
    year = {2021},
    month = {03},
	pages = {},
    abstract = {Background Male infertility is a multifactorial syndrome with diverse phenotypic representations. MicroRNAs (miRNAs) are small, non‐coding RNAs that are involved in the post‐transcriptional regulation of gene expression. Altered abundance levels of ODF2 and UBQLN3 have been reported in patients with different spermatogenic impairments. However, the transcriptional regulation of these two genes by miR‐23a/b‐3p is still unclear. Objectives To investigate experimentally whether miR‐23a/b‐3p targets the genes ODF2 and UBQLN3 and whether this targeting impacts abundance levels of ODF2 and UBQLN3 in patients with oligoasthenozoospermia. Materials and methods A total of 92 men attending a fertility clinic were included in the study, including 46 oligoasthenozoospermic men and 46 age‐matched normozoospermic volunteers who served as controls. Reverse transcription‐quantitative PCR (RT‐qPCR), Western blot, and dual‐luciferase (Firefly‐Renilla) assays were used to validate the miRNAs and their target genes. Results RT‐qPCR revealed that miR‐23a/b‐3p was more abundant and ODF2 and UBQLN3 targets were less abundant in men with impaired spermatogenesis. Besides, Western blot shows that ODF2 and UBQLN3 protein levels were reduced in men with impaired spermatogenesis. In silico prediction and dual‐luciferase assays revealed that potential links exist between the higher abundance level of miR‐23a/b‐3p and the lower abundance level of ODF2 and UBQLN3 targets. Mutations in the miR‐23a/b‐3p‐binding site within the 3ˊUTRs (3ˊuntranslated regions) of ODF2 and UBQLN3 genes resulted in abrogated responsiveness to miR‐23a/b‐3p. Correlation analysis showed that sperm count, motility, and morphology were negatively correlated with miR‐23a/b‐3p and positively correlated with the lower abundance level of UBQLN3, while ODF lower abundance level was positively correlated with sperm motility. Conclusion Findings indicate that the higher abundance level of miR‐23a/b‐3p and the lower abundance level of ODF2 and UBQLN3 targets are associated with oligoasthenozoospermia and male subfertility.},
    title = {MicroRNA‐targeting in spermatogenesis: Over‐expressions of microRNA‐23a/b‐3p and its affected targeting of the genes ODF2 and UBQLN3 in spermatozoa of patients with oligoasthenozoospermia},
    journal = {Andrology},
    doi = {10.1111/andr.13004},
	URL = {https://onlinelibrary.wiley.com/doi/10.1111/andr.13004}
}
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