Cytokines in asthma
Cytokines in asthma
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DOI:
10.1183/09031936.01.00229601
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发表时间:
2001-12-01
影响因子:
24.3
通讯作者:
Kips, JC
中科院分区:
文献类型:
--
作者:
Kips, JC
The airway inflammation underlying asthma is regulated by a network of mutually interacting cytokines. The exact functional role of each individual cytokine in the pathogenesis of the disease remains to be fully established.Type 2 T-helper cells are currently considered to play a crucial role in this process. In giro animal data suggest a sequential involvement of interleukin (IL)-4 and IL-5 in the induction of allergen-induced airway changes. The potential role of other type 2 T-helper cell-like cytokines in asthma is increasingly being recognized. In particular, IL-4 and -13 display a large degree of redundancy. Whereas IL-4 seems to be crucial in the primary allergen sensitization process, IL-13 might be more important during secondary exposure to aerosolized allergen. Animal models also indicate that T-cell-derived cytokine production, rather than eosinophil influx or immunoglobulin-E synthesis, is causally related to altered airway behaviour.An important aspect when evaluating the functional role of cytokines in a complex disease such as asthma is the interaction with other cytokines in the microenvironment. Increased expression of pro-inflammatory cytokines such as tumour necrosis factor-alpha can further enhance the inflammatory process, and is increasingly linked to disease severity. In addition, decreased expression of immunoregulatory cytokines, including interleukin-12, interleukin-18 or interferon gamma could also strengthen the type 2 T-helper cell-driven inflammatory process.