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Age-Specific Gene Expression Profiles of Rhesus Monkey Ovaries Detected by Microarray Analysis
Hengxi Wei1, Xiangjie Liu1, Jihong Yuan2
1Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
Biomed Research International
|October 1, 2015
Summary
Ovarian aging in rhesus monkeys reveals significant gene expression changes, particularly in cell cycle and reproductive functions. These molecular shifts offer insights into age-related infertility in primates.
Area of Science:
- Reproductive biology
- Genomics
- Aging research
Background:
- Ovarian function biologically declines with age.
- Understanding molecular changes in aging ovaries is crucial for reproductive health.
Purpose of the Study:
- To identify molecular changes in aging ovaries using genome-wide gene expression analysis.
- To investigate age-related transcriptional alterations in primate ovaries.
Main Methods:
- Genome-wide gene expression analysis by microarray in rhesus monkey ovaries (young, middle-aged, old).
- Validation of microarray data using quantitative real-time PCR.
- Bioinformatic enrichment analysis of differentially expressed genes and KEGG pathways.
Main Results:
- Significant differential gene expression observed in old ovaries compared to young and middle-aged ovaries (503 and 84 genes, respectively).
- No significant gene expression differences between young and middle-aged ovaries.
- Differentially expressed genes enriched in cell cycle, DNA replication/repair, oocyte meiosis, and signaling pathways (MAPK, TGF-beta, p53).
- Upregulated genes linked to aging and defense; downregulated genes associated with reproduction and cell cycle processes.
Conclusions:
- Monkey ovaries exhibit substantial age-related global transcription changes.
- Gene expression profiles provide valuable insights into the mechanisms of ovarian aging and infertility in primates.
