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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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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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An In Vitro Protocol for Evaluating MicroRNA Levels, Functions, and Associated Target Genes in Tumor Cells
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miR-107-mediated decrease of HMGCS2 indicates poor outcomes and promotes cell migration in hepatocellular carcinoma.

Shu-Guang Su1, Mei Yang2, Mei-Fang Zhang3

  • 1Department of Pathology, Hexian Memorial Hospital of Panyu District, Guangzhou, China.

The International Journal of Biochemistry & Cell Biology
|September 5, 2017
PubMed
Summary
This summary is machine-generated.

Mitochondrial HMGCS2 (3-hydroxy-3-methylglutaryl-CoA synthase) is downregulated in hepatocellular carcinoma (HCC), suppressing metastasis. Low HMGCS2 indicates poor prognosis, suggesting it as a therapeutic target for HCC.

Keywords:
ERK/c-JunHMGCS2Hepatocellular carcinomamiR-107

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Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Hepatocellular carcinoma (HCC) is a major global health concern with limited therapeutic options.
  • The role of mitochondrial 3-hydroxy-3-methylglutaryl-CoA synthase (HMGCS2) in HCC pathogenesis and its clinical significance are currently unknown.

Purpose of the Study:

  • To investigate the expression, function, and clinical significance of HMGCS2 in hepatocellular carcinoma.
  • To explore the underlying molecular mechanisms and potential therapeutic implications of HMGCS2 in HCC.

Main Methods:

  • Analysis of HMGCS2 expression in HCC patient cohorts.
  • In vitro studies using HCC cell lines to assess the effects of HMGCS2 modulation on cell migration and Epithelial-Mesenchymal Transition (EMT).
  • Investigation of signaling pathways, including ERK/c-Jun, and upstream regulators like miR-107.

Main Results:

  • HMGCS2 expression is significantly downregulated in HCC and correlates with poor tumor differentiation, vascular invasion, and worse patient survival.
  • HMGCS2 overexpression suppresses HCC cell migration, while HMGCS2 knockdown promotes it via EMT and activation of the ERK/c-Jun pathway.
  • miR-107 directly targets and downregulates HMGCS2 in HCC.

Conclusions:

  • HMGCS2 acts as an antimetastatic factor in HCC and serves as a potential prognostic biomarker.
  • Targeting HMGCS2 or its regulatory pathways presents a promising strategy for HCC clinical intervention.