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Related Experiment Video

Updated: May 24, 2026

Whole-cell MALDI-TOF Mass Spectrometry is an Accurate and Rapid Method to Analyze Different Modes of Macrophage Activation
11:25

Whole-cell MALDI-TOF Mass Spectrometry is an Accurate and Rapid Method to Analyze Different Modes of Macrophage Activation

Published on: December 26, 2013

Microbial pattern recognition causes distinct functional micro-RNA signatures in primary human monocytes.

Robert Häsler1, Gunnar Jacobs, Andreas Till

  • 1Institute of Clinical Molecular Biology, Christian Albrechts University Kiel, Kiel, Schleswig-Holstein, Germany.

Plos One
|February 25, 2012
PubMed
Summary

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MicroRNAs (miRNAs) are key regulators of gene expression. This study reveals distinct miRNA clusters responding to inflammatory stimuli in human monocytes, highlighting their role in fine-tuning inflammatory responses.

Area of Science:

  • Immunology
  • Molecular Biology
  • Genetics

Background:

  • Micro-RNAs (miRNAs) are crucial post-transcriptional gene regulators.
  • Limited understanding exists regarding miRNA responses to external stimuli, particularly in disease contexts.
  • Inflammatory responses involve complex molecular networks that are not fully elucidated.

Purpose of the Study:

  • To characterize the miRNA network associated with inflammatory responses in primary human monocytes.
  • To identify specific miRNA responses to various pro-inflammatory stimuli.
  • To investigate the functional roles and target genes of key miRNAs in inflammation.

Main Methods:

  • Quantification of 330 miRNAs in primary human monocytes using real-time PCR after stimulation.
  • Stimulation with pro-inflammatory components: microbial pattern molecules (flagellin, LPS, MDP), Listeria monocytogenes infection, and TNF-α.

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Last Updated: May 24, 2026

Whole-cell MALDI-TOF Mass Spectrometry is an Accurate and Rapid Method to Analyze Different Modes of Macrophage Activation
11:25

Whole-cell MALDI-TOF Mass Spectrometry is an Accurate and Rapid Method to Analyze Different Modes of Macrophage Activation

Published on: December 26, 2013

Isolation, Transfection, and Culture of Primary Human Monocytes
09:13

Isolation, Transfection, and Culture of Primary Human Monocytes

Published on: December 16, 2019

Characterization of Human Monocyte Subsets by Whole Blood Flow Cytometry Analysis
09:12

Characterization of Human Monocyte Subsets by Whole Blood Flow Cytometry Analysis

Published on: October 17, 2018

  • Identification of miRNA target genes using THP1 monocytes, pre- or anti-miRNAs, and microfluidic PCR arrays.

    • Main Results:

    • Distinct miRNA response clusters were observed for each pro-inflammatory stimulus.
    • Specific miRNAs (miR-129-5p, miR-146a, miR-378) and their potential target genes were identified within PAMP-specific clusters.
    • Overexpression of miR-129-5p, induced by MDP, led to the upregulation of specific genes including DEFB1, IRAK1, FBXW7, and IKK γ (Nemo).

    Conclusions:

    • miRNAs function in co-regulated clusters to fine-tune inflammatory mechanisms.
    • This study provides insights into the role of miRNAs in modulating gene expression during inflammation.
    • Understanding miRNA responses is crucial for elucidating gene regulation in inflammatory diseases.