The leading cause of asthma development is the breakdown of immune tolerance to inhaled allergens, prompting the immune system’s aberrant activation. During the early phase, also known as the sensitization phase, allergen-specific T cells are activated and become central players in orchestrating the subsequent development of allergic asthma following secondary exposure to the same allergens. It is well-established that allergen-specific T helper 2 (Th2) cells play central roles in developing allergic asthma. https://www.frontiersin.org/articles/10.3389/fimmu.2021.637948/full
The Role of Type 2 Innate Lymphoid Cells in Allergic Diseases https://www.frontiersin.org/articles/10.3389/fimmu.2021.586078/full