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Spermatogenesis is a complex process that involves the development of sperm cells from undifferentiated stem cells in the seminiferous tubules of the testes. The process is essential for the production of mature and functional sperm cells that are capable of fertilizing an egg.
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Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
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Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
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Oct4GiP Reporter Assay to Study Genes that Regulate Mouse Embryonic Stem Cell Maintenance and Self-renewal
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NBMA Promotes Spermatogenesis by Mediating Oct4 Pathway.

Jinfei Yang1, Dengfeng Lin1, Weiwei Yao1

  • 1Medical school, Institute of Reproductive Medicine, Nantong University, Nantong, 226019, China.

Chemistryopen
|February 10, 2022
PubMed
Summary

Researchers identified NBMA, a novel drug molecule, that significantly promotes spermatogenesis in a mouse model of non-obstructive azoospermia by activating the Oct4 pathway. This discovery offers a promising therapeutic avenue for male infertility.

Keywords:
NBMAOct4male infertilityspermatogenesistargeted drug design

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Area of Science:

  • Reproductive Biology
  • Drug Discovery
  • Molecular Biology

Background:

  • Non-obstructive azoospermia is a primary cause of male infertility with limited treatment options.
  • The transcription factor Octamer-binding transcription factor 4 (Oct4) plays a crucial role in regulating spermatogenesis.

Purpose of the Study:

  • To identify and evaluate novel therapeutic agents targeting Oct4 for non-obstructive azoospermia.
  • To elucidate the mechanism by which Oct4 activation promotes spermatogenesis.

Main Methods:

  • Computer-assisted drug screening to identify Oct4-targeted molecules.
  • In vivo efficacy testing in a mouse model of azoospermia.
  • Transcriptome sequencing, qPCR, and Western blot analysis to investigate molecular pathways.

Main Results:

  • The identified molecule, N-benzyl-4-methoxy-2-(1-(4-(trifluoromethyl)phenyl)vinyl)aniline (NBMA), demonstrated significant efficacy in promoting spermatogenesis in the azoospermia mouse model.
  • NBMA was found to activate the Oct4 pathway, promoting the differentiation of spermatogonial stem cells.

Conclusions:

  • NBMA shows potential as a therapeutic drug for non-obstructive azoospermia.
  • Multidisciplinary approaches combining computational, chemical, and biological methods are valuable for innovative drug discovery.