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MicroRNAs01:22

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A New MicroRNA Cluster Involved in the Reprogramming to a Pluripotent State.

V V Sherstyuk1,2,3,4, G I Davletshina1,2, Y V Vyatkin3,5,6

  • 1The Federal Research Center Institute of Cytology and Genetics SB RAS, Lavrentyeva Ave. 10, Novosibirsk, 630090, Russia.

Acta Naturae
|August 16, 2019
PubMed
Summary
This summary is machine-generated.

A specific microRNA (miRNA) cluster deletion significantly reduced rat cell reprogramming efficiency. This suggests the miRNA cluster is crucial for achieving pluripotency in somatic cell reprogramming.

Keywords:
CRISPR/Cas9microRNApluripotent stem cellsreprogramming

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Area of Science:

  • Molecular Biology
  • Developmental Biology
  • Genetics

Background:

  • Cellular reprogramming converts somatic cells to a pluripotent state, a process influenced by various regulatory factors.
  • Non-coding RNAs, particularly microRNAs (miRNAs), are increasingly recognized for their significant roles in biological processes, including cell reprogramming.

Purpose of the Study:

  • To investigate the role of a specific miRNA cluster (miR-743a to miR-465) in the reprogramming of rat fibroblasts.
  • To determine the impact of deleting this miRNA cluster on reprogramming efficiency and the characteristics of the resulting cells.

Main Methods:

  • Somatic cell reprogramming of rat fibroblasts with a targeted deletion of the miRNA cluster (miR-743a to miR-465).
  • Assessment of reprogramming efficiency and comparison of reprogrammed cells with rat embryonic stem cells and induced pluripotent stem cells.

Main Results:

  • Deletion of the miRNA cluster significantly decreased the efficiency of somatic cell reprogramming.
  • Reprogrammed cells resulting from the deletion exhibited characteristics distinct from authentic rat embryonic and induced pluripotent stem cells, indicating incomplete reprogramming.

Conclusions:

  • The investigated miRNA cluster, or specific miRNAs within it, plays a critical role in regulating the efficiency and completeness of rat cell reprogramming to a pluripotent state.
  • These findings highlight the importance of specific miRNA clusters in controlling pluripotency induction.