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Related Concept Videos

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 the pre-miRNA...
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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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Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult...
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Related Experiment Video

Updated: Feb 27, 2026

Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants
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[Expression and function of microRNAs in enamel development].

Zhou Yachuan1, Zhou Xuedong1, Zheng Liwei1

  • 1State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.

Hua Xi Kou Qiang Yi Xue Za Zhi = Huaxi Kouqiang Yixue Zazhi = West China Journal of Stomatology
|July 5, 2017
PubMed
Summary
This summary is machine-generated.

MicroRNAs (miRNAs) regulate gene expression and are crucial for dental enamel development. Disruptions in miRNA function can lead to inherited enamel malformations, highlighting their importance in tooth formation.

Keywords:
ameloblastenamel developmentexpressionmicroRNAs

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Area of Science:

  • Molecular Biology
  • Developmental Biology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are small, noncoding RNA molecules.
  • They regulate gene expression post-transcriptionally.
  • miRNAs play vital roles in various developmental processes.

Purpose of the Study:

  • To review the expression and function of miRNAs in dental enamel development.
  • To understand the role of miRNAs in preventing enamel malformations.

Main Methods:

  • Literature review of studies on miRNA expression and function.
  • Analysis of miRNA involvement in enamel formation pathways.

Main Results:

  • miRNAs are expressed during critical stages of tooth enamel development.
  • Specific miRNAs are identified as key regulators of enamel formation.
  • Dysregulation of these miRNAs is linked to inherited enamel defects.

Conclusions:

  • miRNAs are essential regulators of dental enamel development.
  • Understanding miRNA roles can provide insights into inherited enamel malformations.
  • Targeting miRNAs may offer therapeutic strategies for enamel defects.