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Monitoring Cell-to-cell Transmission of Prion-like Protein Aggregates in Drosophila Melanogaster
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Can brain activity transmit transgenerationally?

Eric A Miska1, Oded Rechavi2

  • 1Wellcome Trust Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, United Kingdom; Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom; Department of Genetics, University of Cambridge, Cambridge, United Kingdom.

Current Topics in Developmental Biology
|May 16, 2021
PubMed
Summary
This summary is machine-generated.

Parental experiences may influence offspring through transgenerational epigenetic inheritance. Small RNA molecules in Caenorhabditis elegans demonstrate how somatic responses can alter gene activity in descendants, challenging traditional views.

Keywords:
C. elegansEpigeneticsMemoryNematodesSmall RNAsTransgenerational inheritance

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Area of Science:

  • Epigenetics
  • Neuroscience
  • Developmental Biology

Background:

  • Modern neuroscience and genetics posit that parental memories are not transferred to progeny.
  • This assumption is challenged by emerging research on transgenerational epigenetic inheritance.
  • Historical work on 'memory transfer' faced controversy but laid groundwork for current investigations.

Purpose of the Study:

  • To review new discoveries in molecular memory and transgenerational epigenetic responses.
  • To examine the role of small RNAs in transmitting information across generations.
  • To discuss evidence for brain-orchestrated behavior inheritance.

Main Methods:

  • Focus on studies using the nematode Caenorhabditis elegans.
  • Analysis of small RNA transmission from somatic cells to the germline.
  • Review of recent research connecting nervous system small RNAs and heritable traits.

Main Results:

  • Somatic responses in C. elegans can control gene activity in descendants via heritable small RNAs.
  • This transgenerational inheritance is regulated by specific molecular machinery.
  • Evidence suggests the inheritance of behavior orchestrated by the nervous system.

Conclusions:

  • Transgenerational epigenetic inheritance, particularly via small RNAs, offers a mechanism for information transfer across generations.
  • Small RNAs play a crucial role in mediating the inheritance of nervous system-mediated responses.
  • Understanding these mechanisms has significant implications for developmental biology and behavior.