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Related Concept Videos

Drugs Used in Lower Respiratory Disorders: Overview01:17

Drugs Used in Lower Respiratory Disorders: Overview

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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...
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Hypersensitivities01:30

Hypersensitivities

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Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
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Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs01:25

Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs

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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...
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Allergic Drug Reactions01:27

Allergic Drug Reactions

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Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
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Antiasthma Drugs: Leukotriene Modifiers01:19

Antiasthma Drugs: Leukotriene Modifiers

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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:
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Cross-reactivity00:42

Cross-reactivity

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Overview
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Related Experiment Video

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Basophil Activation Test for Investigation of IgE-Mediated Mechanisms in Drug Hypersensitivity
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Dupilumab: Basic aspects and applications to allergic diseases.

Kazuto Matsunaga1, Norito Katoh2, Shigeharu Fujieda3

  • 1Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, Ube, Japan.

Allergology International : Official Journal of the Japanese Society of Allergology
|February 3, 2020
PubMed
Summary

Dupilumab blocks Interleukin-4 (IL-4) and IL-13, key drivers of allergic diseases. This targeted therapy shows promise for atopic dermatitis, asthma, and chronic rhinosinusitis with nasal polyps.

Keywords:
AsthmaAtopic dermatitisChronic rhinosinusitis with nasal polypsInterleukin-13Interleukin-4

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Area of Science:

  • Immunology
  • Allergology
  • Pharmacology

Background:

  • Interleukin-4 (IL-4) and IL-13 are type 2 cytokines crucial in allergic disease pathogenesis.
  • These cytokines share the IL-4 receptor alpha chain (IL-4Rα), presenting a common therapeutic target.
  • Blocking both IL-4 and IL-13 signaling offers a potent strategy for managing allergic conditions.

Purpose of the Study:

  • To evaluate the efficacy of dupilumab, a monoclonal antibody targeting IL-4Rα.
  • To assess dupilumab's role in treating allergic diseases driven by type 2 inflammation.

Main Methods:

  • Dupilumab, a fully human monoclonal antibody, targets the IL-4Rα.
  • Clinical trials have investigated dupilumab for atopic dermatitis, asthma, and chronic rhinosinusitis with nasal polyps (CRSwNP).

Main Results:

  • Dupilumab is approved for moderate-to-severe atopic dermatitis and uncontrolled asthma.
  • Positive Phase 3 results have been reported for CRSwNP.
  • Ongoing trials explore dupilumab's efficacy in other type 2 inflammatory diseases.

Conclusions:

  • Dupilumab effectively blocks IL-4 and IL-13 signaling pathways.
  • The drug represents a significant advancement in treating allergic diseases like AD, asthma, and CRSwNP.
  • Dupilumab is poised to usher in a new era of treatment for type 2 inflammatory conditions.