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Antibody Structure01:10

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Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
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Allergic Reactions02:06

Allergic Reactions

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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: 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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Antibody Structure and Classes01:25

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Antibodies, also known as immunoglobulins, are produced by B cells in response to foreign substances, such as bacteria and viruses. These proteins are critical for recognizing and neutralizing these substances, protecting the body from potential harm.
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
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Antibody Actions01:26

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Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
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Video Experimental Relacionado

Updated: Sep 10, 2025

Humanized Mediator Release Assay as a Read-Out for Allergen Potency
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IgE en enfermedades alérgicas

Dana Greene1, Jamie Moore Fried1, Julie Wang1

  • 1Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York, USA.

Immunological reviews
|August 27, 2025
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Resumen

La inmunoglobulina E (IgE) es fundamental para las enfermedades alérgicas. La orientación de IgE ofrece tratamientos efectivos para afecciones como el asma y las alergias alimentarias, mejorando los resultados de los pacientes.

Palabras clave:
Alergiasel asmaLa dermatitis atópicaInsuficiencia renal crónicaEczema en el pechoAlergia a los alimentosInmunoglobulina E (IgE) y sus derivadoscélula de mástilInmunoterapia por vía oralLas urticarias

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Área de la Ciencia:

  • Inmunología
  • Investigación de las alergias

Sus antecedentes:

  • La inmunoglobulina E (IgE) conduce la patogénesis de las enfermedades alérgicas.
  • La IgE se une al FcεRI en los mastocitos y en los basófilos, mediando las reacciones alérgicas.

Objetivo del estudio:

  • Revisar el papel crítico de la IgE en las enfermedades alérgicas.
  • Para resaltar la IgE como objetivo terapéutico y diagnóstico.

Principales métodos:

  • Revisión de la literatura sobre el papel de la IgE en la patogénesis alérgica.
  • Análisis de las aplicaciones clínicas y resultados de las terapias anti-IgE.

Principales resultados:

  • La IgE desencadena la degranulación de mastocitos y basófilos, liberando mediadores alérgicos.
  • Las terapias anti-IgE muestran eficacia en la desensibilización de la alergia alimentaria, el asma y la urticaria crónica.

Conclusiones:

  • La IgE es un factor fundamental en el desarrollo de enfermedades alérgicas.
  • La orientación de la IgE es una estrategia validada para el manejo de enfermedades alérgicas.