Alteración de la actividad inflamatoria regulada por T H1-T H2 en asma

asthma affects between 100 and 150 million people around the globe. currently, it is a disease that can be controlled by diverse therapeutic approaches; unfortunately, it cannot be cured. in many countries asthma is one of the most expensive and frequent diseases for the healthcare systems. therefore, effective preventive strategies are greatly needed to reduce individual morbidity, mortality and economic burdens. this requires, among others, a detailed knowledge of the immunoiogicai and physiological mechanisms involved in asthma. this review synthesizes our understanding about the inflammation of th2-mediated asthma and discusses the origin of cd4 + th2 cells and the role of th2 cytokines in producing and maintaining airway inflammation in asthma