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Related Concept Videos

Infertility in Males01:23

Infertility in Males

253
Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
253

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Busulfan Chemotherapy Downregulates TAF7/TNF-α Signaling in Male Germ Cell Dysfunction.

Daoyuan Huang1, Zhenbo Tu1, Antoine E Karnoub1

  • 1Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.

Biomedicines
|October 26, 2024
PubMed
Summary

Busulfan chemotherapy induces apoptosis in male germ cells by downregulating TAF7 (TATA box-binding protein-associated factor 7), impacting spermatogenesis and potentially cancer prognosis.

Keywords:
BusulfanTAF7TNF-αchemotherapyinfertilityinflammationspermatogoniastem cell

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Area of Science:

  • Reproductive biology and toxicology
  • Cancer chemotherapy mechanisms
  • Molecular oncology

Background:

  • Busulfan is an FDA-approved chemotherapy agent for acute myeloid leukemia.
  • The precise mechanisms of Busulfan-induced damage to spermatogonia stem cells (SSCs) remain unclear.
  • Understanding these mechanisms is crucial for managing treatment side effects and improving cancer therapy.

Purpose of the Study:

  • To investigate Busulfan's effects on germ cell apoptosis and DNA damage signaling in a murine model.
  • To elucidate the role of TAF7 (TATA box-binding protein-associated factor 7) in Busulfan-induced testicular toxicity.
  • To explore the potential link between TAF7 expression, spermatogenesis, and cancer prognosis.

Main Methods:

  • Utilized a murine model to assess Busulfan-induced apoptosis and DNA damage in testis and ovary tissues.
  • Employed RT-qPCR, single-nuclei RNA sequencing, and in situ hybridization for gene expression analysis.
  • Analyzed TAF7 expression in human testicular germ cell tumors and correlated it with patient survival.

Main Results:

  • Busulfan chemotherapy induced significant apoptosis in haploid male germ cells, unlike female germ cells.
  • Reactive oxygen species and the TNF-α/NF-κB pathway were implicated in the inflammatory response.
  • Testicular TNF-α and TAF7 mRNA levels were downregulated, alongside suppressed testosterone, with reduced TAF7 in SSCs post-chemotherapy.

Conclusions:

  • Busulfan downregulates TAF7, suggesting a role for TAF7 in regulating SSCs and spermatogenesis.
  • These findings offer insights into Busulfan's therapeutic effects and its impact on cancer chemotherapy outcomes.
  • TAF7 overexpression in human cancers, particularly testicular germ cell tumors, highlights its oncogenic potential and relevance to patient survival.