Assertion: eosinophil | /r/HasAspect | limited life span
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Source sentences:
text: Because eosinophils have a limited life span, the action of several cytokines (IL‐3, IL‐5, IL‐13, and GM‐CSF) produced by themselves (autocrine regulation) and by other cell types (T cells, neutrophils, and TNF‐α–primed airway smooth muscle cells), it is necessary to increase eosinophil survival in peripheral blood and in the lung by decreasing apoptotic death .