Related Experiment Video

Updated: Dec 17, 2025

Author Spotlight: Advancing Allergic Rhinitis Research with Multicolor Immunofluorescence
06:08

Author Spotlight: Advancing Allergic Rhinitis Research with Multicolor Immunofluorescence

Published on: September 22, 2023

2.3K

Combination of TLR agonist and miR146a mimics attenuates ovalbumin-induced asthma

Xinhua Wang1, Xiaoxian Lu2, Chenhui Ma1

  • 1Department of Respiratory Medicine, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, No.68 Zhongshan Road, Liangxi District, Wuxi, 214002, Jiangsu, China.

Molecular Medicine (Cambridge, Mass.)
|July 1, 2020
PubMed
Abstract

Insights

microRNA-146a inhibition alleviates allergic asthma symptoms by modulating the Toll-like receptor 2 (TLR2) pathway. This approach reduces inflammation and offers potential for clinical asthma treatment strategies.

Area of Science:

  • Immunology
  • Molecular Biology
  • Respiratory Medicine

Background:

  • microRNA-146a (miR146a) is implicated in asthma regulation via the Toll-like receptor 2 (TLR2) pathway.
  • Understanding miR146a's role is crucial for developing novel asthma therapies.

Purpose of the Study:

  • To investigate the effects of a miR146a inhibitor on asthma symptoms.
  • To elucidate the underlying molecular mechanisms of miR146a in an asthma model.

Main Methods:

  • Established an ovalbumin (OVA)-induced allergic asthma mouse model.
  • Analyzed bronchoalveolar lavage fluid for inflammatory cells using flow cytometry.
  • Quantified TLR2 signaling pathway molecules and cytokines via Q-PCR and ELISA.

Main Results:

  • miR146a inhibition attenuated OVA-induced allergic asthma.
  • Treatment increased Th1 cytokines and reduced IL-5 and IL-13 in ILC2 cells.
  • Inhibition of miR-146a decreased asthma symptoms alongside TLR2 pathway molecule upregulation.

Conclusions:

  • miR-146a acts as a key regulator in OVA-induced allergic asthma.
  • Modulating the TLR2 pathway via miR-146a inhibition offers a potential therapeutic strategy for asthma.
  • Findings support miR146a as a target for clinical asthma management.
Keywords:
AsthmaIL5ILC2TLR2miR146a-mimic

More Related Videos

Murine Model of Allergen Induced Asthma08:05

Murine Model of Allergen Induced Asthma

Published on: May 14, 2012

41.0K
Isolation of Group 2 Innate Lymphoid Cells from Mouse Nasal Mucosa to Detect the Expression of CD22608:30

Isolation of Group 2 Innate Lymphoid Cells from Mouse Nasal Mucosa to Detect the Expression of CD226

Published on: May 10, 2022

2.3K

Related Concept Videos

Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs01:25

Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs

Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
1.6K
Antiasthma Drugs: Leukotriene Modifiers01:19

Antiasthma Drugs: Leukotriene Modifiers

Leukotriene modifiers, or cysteinyl leukotriene receptor antagonists, are medications used to manage chronic asthma. These agents target specific inflammatory mediators produced during arachidonic acid metabolism, an essential process in generating inflammation in the body.
Leukotriene modifiers work through two distinct mechanisms:
1.6K
Asthma: Pathogenesis and Management01:20

Asthma: Pathogenesis and Management

Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
1.1K
Antiasthma Drugs: Muscarinic Receptor Antagonists01:20

Antiasthma Drugs: Muscarinic Receptor Antagonists

Muscarinic receptor antagonists, also known as antimuscarinic agents, are a class of bronchodilators used to treat asthma, although they are more commonly used to treat COPD. They work by inhibiting the action of acetylcholine (ACh), a neurotransmitter, on muscarinic receptors found in the airways.
Antimuscarinic agents compete with ACh for the same binding site on the muscarinic receptors. By binding to these receptors, they inhibit the downstream effects of ACh and block the parasympathetic...
1.6K
Drugs Used in Lower Respiratory Disorders: Overview01:17

Drugs Used in Lower Respiratory Disorders: Overview

Lower respiratory tract disorders present challenges that often require skilled and nuanced approaches for effective management. Common ailments, such as asthma and chronic obstructive pulmonary disease (COPD), have prompted the development of intricate treatment strategies involving bronchodilators and anti-inflammatory drugs, each tailored to ease breathing and revitalize the lungs.
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
903