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Abstract AI-Helper 아이콘AI-Helper

Human neutrophils play an essential role in the innate immune response and are involved in the pathogenesis of the severe and corticosteroid-resistant asthma. Asthma is characterized by an infiltration of inflammatory cells into the lung and by a cytokine release. The aim of this study is to investi...

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제안 방법

  • , 2011). Based on these results, we investigated the effects of BALF on the normal neutrophil chemotaxis and apoptosis and the association of this effect with the cytokine and chemokine in BALF. In addition, we examined the difference between blood neutrophils and BALF neutrophils by an evaluation of the alteration of neutrophil apoptosis due to the monocyte chemoattractant protein-1 (MCP-1) named as CC chemokine ligand 2 (CCL2).
  • However, the mechanism of the neutrophilic inflammation in the asthmatic airway has not been clearly elucidated yet. The main results of this study are the BALF of patients with asthma induces the normal neutrophils migration, which leads to a neutrophils recruitment at the local inflammation site such as lung tissues. The increase of MCP-1, IL-6 and IL-8 in the asthmatic BALF may be suggested as essential chemokines and cytokines in the chemotactic effect of asthmatic the BALF.
  • To investigate the chemotaxis-related inflammatory factors in asthmatic BALF, both cytokines and chemokines in BALF of normal subjects and patients with asthma were analyzed using the ELISA test. As shown in Fig.

대상 데이터

  • The apoptotic neutrophils were analyzed using FACSCalibur with CellQuest software (BD bioscience) and were defined as the cells that stained positive for annexin V with or without PI. Ten thousand events were collected for each experiment.
  • The normal subjects had a normal lung function, no asthma history and no asthma medication was required. The patients with asthma were recruited from the Konyang University Hospital and had mild to severe disease symptoms., The symptoms were measured based on the GINA criteria (Global Initiative for Asthma) (URL: http://www.
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참고문헌 (17)

  1. Baggiolini M, Dewald B, Moser B. Human chemokines: an update. Annu Rev Immunol. 1997. 15: 675-705. 

  2. Choi E, Yang EJ, Kim DH, Lee JS, Kim IS. CCR expression of bronchoalveolar lavage fluid (BALF) neutrophils and chemotactic activity of BALF. J Exp Biomed Sci. 2011. 17: 89-93. 

  3. Douwes J, Gibson P, Pekkanen J, Pearce N. Non-eosinophilic asthna: Importance and possible mechanisms. Thorax. 2002. 57: 643-648. 

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  5. Fireman P. Understanding asthma pathophysiology. Allergy and Asthma Proceedings. 2003. 24: 79-83. 

  6. Jatakanon A, Uasuf C, Maziak W, Lim S, Chung KF, Barnes PJ. Neutrophilic inflammation in severe persistent asthma. Am J Respir Crit Care Med. 1999. 160: 1532-1539. 

  7. Kim IS, Kim EH, Kim DH, Kim JS, Lee JS. Effect of house dust mite and CCL2 on S100A8 and S100A9 expression in human monocytes. Biomed Sci Lett. 19: 344-377. 

  8. Lacoste JY, Bousquet J, Chanez P, Van Vyve T, Simony-Lafontaine J, Lequeu N, Vic P, Enander I, Godard P, Michel FB. Eosinophilic and neutrophilic inflammation in asthma, chronic bronchitis, and chronic obstructive pulmonary disease. J Allergy Clin Immunol. 1993. 92: 537-548. 

  9. Murdoch C, Finn A. Chemokine receptors and their role in inflammation and infectious diseases. Blood. 2000. 95: 3032-3043. 

  10. Murphy PM, Baggiolini M, Charo IF, Hebert CA, Horuk R, Matsushima K, Miller LH, Oppenheim JJ, Power CA. International union of pharmacology. XXII. Nomenclature for chemokine receptors. Pharmacol Rev. 2000. 52: 145-176. 

  11. Ordonez CL, Shaughnessy TE, Matthay MA, Fahy JV. Increased neutrophil numbers and IL-8 levels in airway secretions in acute severe asthma. Am J Respir Crit Care Med. 2000. 161: 1185-1190. 

  12. Savill JS, Wyllie AH, Henson JE, Walport MJ, Henson PM, Haslett C. Macrophage phagocytosis of aging neutrophils in inflammation. Programmed cell death in the neutrophil leads to its recognition by macrophage. J Clin Invest. 1989. 83: 865-875. 

  13. Schenkel E, Atkins PC, Yost R, Zweiman B. Antigen-induced neutrophil chemotactic activity from sensitized lung. J Allergy Clin Immunol. 1982. 70: 321-325. 

  14. Simon HU. Neutrophil apoptosis pathways and their modifications in inflammation. Immunol Rev. 2003. 193: 101-110. 

  15. Witko-Sarsat V, Rieu P, Descamps-Latscha B, Lesavre P, Halbwachs-Mecarelli L. Neutrophils: Molecules, functions and pathophysiological aspects. Lab Invest. 2000. 80: 617-653. 

  16. Yang EJ, Choi EG, Ko JS, Kim D-H, Lee J-S, Kim IS. Differential Effect of CCL2 on Constitutive Neutrophil apoptosis between normal and asthmatic subjects. J Cell Physiol. 2012. 227: 2567-2577. 

  17. Zhang JY, Wenzel SE. Tissue and BAL based biomarkers in asthma. Immunol Allergy Clin North Am. 2007. 27: 623-632. 

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