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Related Concept Videos

MicroRNAs01:22

MicroRNAs

3.6K
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...
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MicroRNAs01:22

MicroRNAs

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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...
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Related Experiment Video

Updated: Dec 22, 2025

Genome-wide Screen for miRNA Targets Using the MISSION Target ID Library
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Endometrial microRNAs and their aberrant expression patterns.

Shunsuke Tamaru1, Takeshi Kajihara2, Yosuke Mizuno3

  • 1Department of Obstetrics and Gynecology, Saitama Medical University, 38 Morohongo, Moroyama, Iruma-gun, Saitama, Japan.

Medical Molecular Morphology
|May 1, 2020
PubMed
Summary

MicroRNAs (miRNAs) regulate gene expression and are crucial for reproductive health. This review highlights their role in the endometrium, implantation, and associated diseases like endometriosis and cancer.

Keywords:
Ectopic pregnancyEndometrial cancerEndometriosisEndometriumImplantationMicroRNA

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Area of Science:

  • Reproductive Biology
  • Molecular Biology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are small noncoding RNAs regulating gene expression in physiological and pathological processes.
  • Their roles in human reproductive tract tissues, particularly the endometrium, are under-explored.
  • Endometrial function involves complex hormonal and signaling pathways crucial for embryo implantation.

Purpose of the Study:

  • To review the role of miRNAs in regulating human endometrial physiology and embryo implantation.
  • To discuss the aberrant expression of miRNAs in reproductive disorders.
  • To highlight miRNAs as key regulators in endometrial function and tumorigenesis.

Main Methods:

  • Literature review of studies on miRNA expression and function in the human endometrium.
  • Analysis of miRNA involvement in physiological processes like menstruation and implantation.
  • Examination of miRNA dysregulation in pathological conditions.

Main Results:

  • miRNAs are critical regulators of endometrial cyclic modifications and embryo implantation.
  • Aberrant miRNA expression is linked to endometrial disorders.
  • miRNAs influence cell differentiation, proliferation, and metabolism in the endometrium.

Conclusions:

  • miRNAs are essential for normal endometrial function and successful embryo implantation.
  • Dysregulated miRNA expression contributes to ectopic pregnancy, endometriosis, and endometrial cancer.
  • Further research into miRNA mechanisms can offer therapeutic targets for reproductive diseases.