MicroRNA and stem cell regulation

Yulei Wang1, Iain Russell, Caifu Chen

  • 1Life Technologies, Molecular Biology Systems Division, Foster City, CA 94404, USA.

Current Opinion in Molecular Therapeutics
|May 30, 2009
PubMed

Insights

MicroRNAs (miRNAs) are key regulators in stem cell biology, influencing embryonic, adult, and cancer stem cells (CSCs). Understanding these roles advances regenerative medicine and cancer treatment strategies.

Area of Science:

  • Stem cell biology
  • Molecular biology
  • Cancer research

Background:

  • Stem cells possess self-renewal and multipotency, crucial for development and tissue maintenance.
  • Cancer stem cells (CSCs) exhibit stem-like properties, driving tumor growth and drug resistance.
  • MicroRNAs (miRNAs) are critical regulators of gene expression and stem cell function.

Purpose of the Study:

  • To review recent advances in understanding the role of miRNAs in regulating various stem cell types.
  • To highlight the significance of miRNAs in embryonic stem cells, adult stem cells, and CSCs.
  • To explore the potential of miRNA research in regenerative medicine and cancer therapy.

Main Methods:

  • Literature review of recent scientific publications.
  • Synthesis of current knowledge on miRNA-mediated regulation in stem cells.
  • Analysis of the implications of miRNAs in stem cell biology and disease.

Main Results:

  • miRNAs play integral roles in regulating self-renewal and differentiation of embryonic and adult stem cells.
  • Dysregulation of specific miRNAs is implicated in the maintenance and function of CSCs.
  • miRNAs are involved in both promoting and suppressing CSC characteristics.

Conclusions:

  • miRNAs are fundamental regulators of stem cell pluripotency, differentiation, and behavior.
  • Targeting miRNAs offers a promising therapeutic strategy for regenerative medicine and cancer treatment.
  • Further research into miRNA-stem cell interactions will unlock new avenues for disease intervention.

Related Concept Videos

MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs01:22

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MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
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Regulation of Hematopoietic Stem Cells

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Regulation of Expression at Multiple Steps

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The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...