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Updated: Jan 27, 2026
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Polysome Profiling in Leishmania, Human Cells and Mouse Testis
Published on: April 8, 2018
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Dynamic transcriptome profiles within spermatogonial and spermatocyte populations during postnatal testis maturation
Kathryn J Grive1,2, Yang Hu3, Eileen Shu1,2
1Center for Reproductive Genomics, Cornell University, Ithaca, NY, United States of America.
Plos Genetics
|March 21, 2019
Summary
This study reveals distinct gene expression patterns in developing male germ cells during testis maturation. These differences highlight unique biological pathway usage in spermatogonia and spermatocytes across developmental stages.
Area of Science:
- Reproductive Biology
- Developmental Biology
- Genomics
Background:
- Spermatogenesis involves male gamete formation from spermatogonial stem cells (SSCs).
- Maintaining a balance between SSC self-renewal and differentiation is crucial.
- Understanding germ cell development during testis maturation is essential for male fertility.
Purpose of the Study:
- To explore transcriptional profiles of germ cells during testis maturation.
- To compare gene expression in spermatocytes from different developmental stages (neonates, juveniles, adults).
- To identify age-related differences in biological pathway utilization in spermatogonia and spermatocytes.
Main Methods:
- Comprehensive germ cell sampling.
- High-resolution, single-cell messenger RNA sequencing (scRNA-seq).
- Analysis of transcriptional profiles across developmental stages.
Main Results:
- Significant differences in transcriptional profiles were observed between neonates, juveniles, and adults.
- Gene expression dynamics were reflected at the protein level.
- Differential utilization of biological pathways, including DNA damage response, was identified in developing germ cells.
Conclusions:
- Testis maturation involves distinct transcriptional programs in spermatogonia and spermatocytes.
- Age-dependent gene regulatory programs influence germ cell development.
- This study provides a high-resolution dataset of germ cell gene expression during testis maturation.
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