Sperm tsRNAs and acquired metabolic disorders
1CAS Key Laboratory of Nutrition and MetabolismCAS Center for Excellence in Molecular Cell Sciences, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
The Journal of Endocrinology
|June 25, 2016
Summary
Environmental factors can alter fathers' metabolism, potentially impacting offspring health across generations. Sperm tRNA-derived small RNAs (tsRNAs) may act as key epigenetic carriers in this paternal influence on metabolic disorders.
Area of Science:
- Epigenetics
- Reproductive Biology
- Metabolic Disorders
Background:
- Environmental factors can induce metabolic changes transmissible across generations.
- The precise molecular mechanisms for paternal intergenerational metabolic transmission are not fully understood.
- Epigenetic factors like DNA methylation, histone modification, and small non-coding RNAs are implicated.
Purpose of the Study:
- To review the current understanding of paternal influence on offspring metabolic disorders.
- To explore the role of sperm tRNA-derived small RNAs (tsRNAs) in mediating intergenerational epigenetic inheritance.
- To discuss the impact of tsRNA modifications on paternal epigenetic information transmission.
Main Methods:
- Literature review of studies on paternal environmental exposures and offspring metabolic health.
- Analysis of research on epigenetic mechanisms, focusing on small non-coding RNAs in sperm.
- Synthesis of evidence linking sperm tsRNAs to intergenerational metabolic inheritance.
Main Results:
- Growing evidence supports the transmission of environmentally induced metabolic changes from father to offspring.
- Sperm tsRNAs are identified as potential carriers of paternal epigenetic information.
- Modifications in sperm tsRNAs may play a crucial role in this transmission process.
Conclusions:
- Paternal environmental exposures can influence offspring metabolic health through epigenetic mechanisms.
- Sperm tsRNAs represent a significant pathway for paternal epigenetic inheritance of metabolic traits.
- Further research into sperm tsRNAs and their modifications is essential for understanding and potentially preventing intergenerational metabolic disorders.
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