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Apoptosis of granulocytes and the subsequent clearance of apoptotic cells are important processes for the successful resolution of inflammation. Signalling pathways, including those involving NF-kappaB (nuclear factor kappaB), MAPK (mitogen-activated protein kinase) and PI3K (phosphoinositide 3-kinase) have been shown to be key regulators of inflammatory cell survival and apoptosis in vitro. In addition, manipulation of such pathways in vivo has indicated that they also play a role in the resolution of inflammation. Furthermore, manipulation of proteins directly involved in the control of apoptosis, such as Bcl-2 family members and caspases, can be targeted in vivo to influence inflammatory resolution. Recently, it has been shown that CDK (cyclin-dependent kinase) inhibitor drugs induce caspase-dependent human neutrophil apoptosis possibly by altering levels of the anti-apoptotic Bcl-2 family member, Mcl-1. Importantly, CDK inhibitor drugs augment the resolution of established 'neutrophil-dominant' inflammation by promoting apoptosis of neutrophils. Thus manipulation of apoptotic pathways, together with ensuring macrophage clearance of apoptotic cells, appears to be a viable pharmacological target for reducing established inflammation.
|Number of pages||4|
|Journal||Biochemical Society Transactions|
|Issue number||Pt 2|
|Publication status||Published - 2007|
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- 1 Finished
Induction of neutrophil apoptosis and treatment of severe lung inflammation
1/09/07 → 29/02/12