Unraveling spermatogenesis: A single-cell genomics perspective.

Area of Science:

• Male reproductive biology
• Genomics
• Developmental biology

Background:

• Spermatogenesis is a complex process vital for male fertility.
• Understanding germline development requires advanced molecular tools.
• Previous technologies had limitations in resolution and throughput.

Purpose of the Study:

• To synthesize the impact of single-cell genomics on male germline research.
• To review the evolution of technologies from microarrays to single-cell sequencing.
• To explore applications in understanding stem cell niches and epigenetic regulation.

Main Methods:

• Review of single-cell RNA sequencing (scRNA-seq) for cell atlases.
• Discussion of single-cell DNA techniques (scATAC-seq, DNA methylation).
• Focus on perinatal epigenetic reprogramming and chromatin remodeling.

Main Results:

• scRNA-seq enables comprehensive testis cell atlases.
• Single-cell DNA methods address stem cell controversies and epigenetic states.
• Identified regenerative subsets and metabolic gates for fertility restoration.

Conclusions:

• Single-cell genomics provides unprecedented resolution of spermatogenesis.
• Epigenetic insights from perinatal development are crucial for germline stem cells.
• Multi-omics and spatial transcriptomics hold promise for male infertility clinical applications.