Abstract:
BACKGROUND:Olfactory inflammation in chronic rhinosinusitis (CRS) is associated with cytokines that may result in the death of olfactory sensory neurons. The principal signaling molecules involved in the apoptotic pathway are c-Jun N-terminal kinases (JNK). Although the JNK pathway has emerged as a key player in programmed cell death in neuroinflammation, its specific role in CRS-associated olfactory loss has not been thoroughly investigated. METHODS:JNK activation was studied in human tissue samples from 9 control and 11 CRS patients by immunohistochemical staining for phosphorylated c-Jun. A mouse model of inducible olfactory cytokine expression was used to experimentally control inflammation and assess JNK activation over time. RESULTS:In patients with CRS, activation of c-Jun is significantly increased relative to non-CRS control subjects, and there is an associated loss of sensory neurons. In the olfactory inflammation mouse model, prolonged induction of inflammation results in elevation of c-Jun expression and neuronal apoptosis. CONCLUSION:Activation of neuronal JNK is a feature of chronic olfactory inflammation that is associated with neuronal apoptosis. Given that inhibition of JNK activity is neuroprotective in other settings, antagonism of this pathway may have therapeutic potential in the management of inflammatory olfactory loss or other disorders linked to olfactory neuronal apoptosis.
journal_name
Int Forum Allergy Rhinoljournal_title
International forum of allergy & rhinologyauthors
Victores AJ,Chen M,Smith A,Lane APdoi
10.1002/alr.22053subject
Has Abstractpub_date
2018-03-01 00:00:00pages
415-420issue
3eissn
2042-6976issn
2042-6984journal_volume
8pub_type
杂志文章abstract:BACKGROUND:The extracellular matrix (ECM) is a potentially important component of mucosal immunity. ECM dysregulation in chronic rhinosinusitis (CRS) is suggested by genomewide association studies identifying ECM genes as top candidates. Further support is afforded by the demonstration of increased expression of perios...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
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pub_type: 杂志文章,多中心研究
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更新日期:2016-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:2015-02-01 00:00:00
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更新日期:2018-04-01 00:00:00
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更新日期:2018-01-01 00:00:00
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pub_type: 临床试验,杂志文章,多中心研究
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更新日期:2015-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2014-12-01 00:00:00