Elucidation of pathways driving asthma pathogenesis: Development of a systems-level analytic strategy

M.L. Walker, K.E. Holt, G.P. Anderson, S.M. Teo, P.D.L. Sly, Patrick Holt, M. Inouye

Research output: Contribution to journalReview article

18 Citations (Scopus)


© 2014 Walker, Holt, Anderson, Teo, Sly, Holt and Inouye. Asthma is a genetically complex, chronic lung disease defined clinically as episodic airflow limitation and breathlessness that is at least partially reversible, either spontaneously or in response to therapy. Whereas asthma was rare in the late 1800s and early 1900s, the marked increase in its incidence and prevalence since the 1960s points to substantial gene × environment interactions occurring over a period of years, but these interactions are very poorly understood (1-6). It is widely believed that the majority of asthma begins during childhood and manifests first as intermittent wheeze. However, wheeze is also very common in infancy and only a subset of wheezy children progress to persistent asthma for reasons that are largely obscure. Here, we review the current literature regarding causal pathways leading to early asthma development and chronicity. Given the complex interactions of many risk factors over time eventually leading to apparently multiple asthma phenotypes, we suggest that deeply phenotyped cohort studies combined with sophisticated network models will be required to derive the next generation of biological and clinical insights in asthma pathogenesis.
Original languageEnglish
Pages (from-to)447
JournalFrontiers in Immunology
Issue numberSEP
Publication statusPublished - 2014


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