Role of platelet-derived growth factor-α in eosinophilic and non-eosinophilic chronic rhinosinusitis with nasal polyps

2014 ◽  
Vol 4 (11) ◽  
pp. 909-914 ◽  
Author(s):  
Hai Lin ◽  
Dong Lin ◽  
Xi-Sheng Xiong ◽  
Xiong-Xiong Dai ◽  
Ting Lin
Pharmacology ◽  
2011 ◽  
Vol 88 (5-6) ◽  
pp. 302-308 ◽  
Author(s):  
Hajime Ishinaga ◽  
Said Ahmad Shah ◽  
Hiroshi Sakaida ◽  
Kazuhiko Takeuchi

2017 ◽  
Vol 131 (8) ◽  
pp. 707-713 ◽  
Author(s):  
K-J Cheng ◽  
Y-Y Xu ◽  
M-L Zhou ◽  
S-H Zhou ◽  
S-Q Wang

AbstractObjective:To investigate the role of local allergic inflammation and Staphylococcus aureus enterotoxins in chronic rhinosinusitis with nasal polyps.Methods:This study included 36 patients with chronic rhinosinusitis with nasal polyps and 18 controls. Total immunoglobulin E, eosinophil cationic protein, staphylococcal enterotoxin types A and B specific immunoglobulin E, staphylococcal enterotoxin types A and B, and myeloperoxidase levels were determined.Results:Four patients with chronic rhinosinusitis with nasal polyps had a local allergy. All chronic rhinosinusitis with nasal polyps patients tested negative for staphylococcal enterotoxin types A and B specific immunoglobulin E. The chronic rhinosinusitis with nasal polyps group had significantly elevated staphylococcal enterotoxin types A and B levels in the supernatant. Fourteen patients belonged to the eosinophilic chronic rhinosinusitis with nasal polyps group and the others were characterised as having non-eosinophilic chronic rhinosinusitis with nasal polyps.Conclusion:Local allergy may play a role in chronic rhinosinusitis with nasal polyps, independent of staphylococcal enterotoxin superantigens. Staphylococcal enterotoxins may be important in the pathogenesis of chronic rhinosinusitis with nasal polyps; however, their roles as superantigens were not confirmed in this study. In Chinese subjects, chronic rhinosinusitis with nasal polyps usually manifests as a neutrophilic inflammation.


2000 ◽  
Vol 278 (5) ◽  
pp. R1275-R1281 ◽  
Author(s):  
Irene R. Pelá ◽  
Márcia E. S. Ferreira ◽  
Miriam C. C. Melo ◽  
Carlos A. A. Silva ◽  
Márcio M. Coelho ◽  
...  

Platelet-derived growth factor (PDGF) exerts neurotrophic and neuromodulatory actions in the mammalian central nervous system (CNS). Like the cytokines, PDGF primarily signals through tyrosine phosphorylation-dependent pathways that activate multiple intracellular molecules including Janus family kinases. We previously showed that microinjection of PDGF-BB into the lateral ventricle induced a febrile response in rats that was reduced by pretreatment with Win 41662, a potent inhibitor of PDGF receptors (Pelá IR, Ferreira MES, Melo MCC, Silva CAA, and Valenzuela CF. Ann NY Acad Sci 856: 289–293, 1998). In this study, we further characterized the role of PDGF-BB in the febrile response in rats. Microinjection of PDGF-BB into the third ventricle produced a dose-dependent increase in colonic temperature that peaked 3–4 h postinjection. Win 41662 attenuated fever induced by intraperitoneal injection of bacterial lipopolysaccharide, suggesting that endogenous PDGF participates in the febrile response to this exogenous pyrogen. Importantly, febrile responses induced by tumor necrosis factor-α, interleukin-1β, and interleukin-6 were unchanged by Win 41662. Both indomethacin and dexamethasone blocked the PDGF-BB-induced increase in colonic temperature, and, therefore, we postulate that PDGF-BB may act via prostaglandin- and/or inducible enzyme-dependent pathways. Thus our findings suggest that PDGF-BB is an endogenous CNS mediator of the febrile response in rats.


Inflammation ◽  
2016 ◽  
Vol 39 (6) ◽  
pp. 2045-2052 ◽  
Author(s):  
Hai Lin ◽  
Zhipeng Li ◽  
Dong Lin ◽  
Chunquan Zheng ◽  
Weitian Zhang

2010 ◽  
Vol 24 (4) ◽  
pp. 266-270 ◽  
Author(s):  
Douglas D. Reh ◽  
Murugappan Ramanathan ◽  
Babar Sultan ◽  
Yadong Wang ◽  
Lindsey May ◽  
...  

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
Yan Wang ◽  
Shan Chen ◽  
Wenwen Wang ◽  
Jianjun Chen ◽  
Weijia Kong ◽  
...  

2018 ◽  
Vol 138 (9) ◽  
pp. 830-836 ◽  
Author(s):  
Naoki Sugimoto ◽  
Tsuguhisa Nakayama ◽  
Yoshiyuki Kasai ◽  
Daiya Asaka ◽  
Ryoto Mitsuyoshi ◽  
...  

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