Publicado

2014-04-01

Mecanismos inmunológicos implicados en la patología del asma alérgica

Immunologic mechanisms involved in the pathology of allergic asthma

DOI:

https://doi.org/10.15446/revfacmed.v62n2.45417

Palabras clave:

Asma, Inmunoglobulina E, Mastocitos, Eosinófilos (es)
Asthma, Immunoglobulin E, Mast Cells, Eosinophils (en)

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Autores/as

  • Fredy Alexander Pazmiño Facultad de Medicina Universidad Nacional de Colombia. Bogotá, Colombia.
  • Myriam Lucía Navarrete-Jiménez Departamento de Microbiología, Facultad de Medicina, Universidad Nacional de Colombia. Bogotá, Colombia.
El asma es una enfermedad que afecta a personas de todas las edades. La OMS estima que en la actualidad afecta a 235 millones personas en todo el mundo. Para Colombia se estima que la prevalencia de esta enfermedad es aproximadamente del 12%. El asma se caracteriza por una inflamación de las vías respiratorias y por cambios estructurales en los tejidos de las mismas: como hiperplasia epitelial de las células caliciformes, depósito de colágeno subepitelial e hipertrofia del músculo liso. La inmunopatología del asma alérgica involucra tanto la respuesta humoral como la celular, que colectivamente llevan a un estado de hiperreactividad de la vía respiratoria (AHR). Las células que, en el momento, están implicadas en la cascada inflamatoria del asma atópica son: células epiteliales de la vía aérea, las diferentes subpoblaciones de células T y B, mastocitos, células dendríticas, eosinófilos, basófilos, macrófagos, células iNKT y plaquetas, además de la red de citoquinas, quimioquinas y señales co-estimulatorias y regulatorias correspondientes a cada una de las subpoblaciones celulares que orquestan este proceso. Este artículo revisa algunos de los procesos celulares y moleculares más importantes e implicados en la inmunopatogénesis del asma atópica.

Asthma is a disease that affects people of different ages. The WHO estimates that it actually affects around 235 million people around the world, while in Colombia it estimates that is present in about 12% of the population. Asthma is characterized by an airway inflammation and a change in the structural tissue of the respiratory system as: caliciform cells epithelial hyperplasia, subepithelial collagen deposits and airway smooth muscular hypertrophy. Immunopathology of allergic asthma involves humoral and cell mediated immune response, altogether induces a state of airway hyperresponsiveness (AHR).

Inflammatory cells involved in atopic asthma are: airway epithelial cells, different sub-populations of T y B cells, mast cells, dendritic cells, eosinophils, basophils, macrophages, iNKT cells and platelets, as well as cytokines, chemokines and costimulating and regulating signals. The present paper analyses some cellular and molecular processes, considered as the most important related to the immunopathology of atopic asthma.

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Cómo citar

Pazmiño, F. A., & Navarrete-Jiménez, M. L. (2014). Mecanismos inmunológicos implicados en la patología del asma alérgica. Revista De La Facultad De Medicina, 62(2), 265-277. https://doi.org/10.15446/revfacmed.v62n2.45417