Respiratory Microbiome in COPD and Associated Inmune Response.
NCT ID: NCT03321708
Last Updated: 2017-10-26
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
50 participants
OBSERVATIONAL
2016-03-31
2018-12-31
Brief Summary
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COPD patients with frequent exacerbations have different pulmonary and systemic immune response than COPD patients without frequent exacerbations and this is related to their microbiome.
Detailed Description
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1. The pulmonary immune response.
-The role of mucins, antimicrobial peptides (AMPs), Matrix metalloproteinases (MMPs) and Toll-like receptors (TLRs) as lung defense mechanisms and their possible relationship with the microbiome in COPD and FE patients.
2. The systemic immune response. -The pulmonary and blood inflammatory response and circulating bacterial products as markers of the systemic immune response.
Conditions
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Study Design
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COHORT
PROSPECTIVE
Eligibility Criteria
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Inclusion Criteria
2. Clinical stability (8 previous weeks).
3. Signature of informed consent.
Exclusion Criteria
2. Other lung diseases.
3. Active neoplasic disease.
4. Terminal concomitant disease.
40 Years
80 Years
ALL
Yes
Sponsors
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Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau
OTHER
Responsible Party
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Principal Investigators
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Oriol Sibila Vidal, PhD
Role: PRINCIPAL_INVESTIGATOR
Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau
Locations
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Oriol Sibila Vidal
Barcelona, , Spain
Countries
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Central Contacts
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References
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Mizgerd JP. Respiratory infection and the impact of pulmonary immunity on lung health and disease. Am J Respir Crit Care Med. 2012 Nov 1;186(9):824-9. doi: 10.1164/rccm.201206-1063PP. Epub 2012 Jul 12.
Roy MG, Livraghi-Butrico A, Fletcher AA, McElwee MM, Evans SE, Boerner RM, Alexander SN, Bellinghausen LK, Song AS, Petrova YM, Tuvim MJ, Adachi R, Romo I, Bordt AS, Bowden MG, Sisson JH, Woodruff PG, Thornton DJ, Rousseau K, De la Garza MM, Moghaddam SJ, Karmouty-Quintana H, Blackburn MR, Drouin SM, Davis CW, Terrell KA, Grubb BR, O'Neal WK, Flores SC, Cota-Gomez A, Lozupone CA, Donnelly JM, Watson AM, Hennessy CE, Keith RC, Yang IV, Barthel L, Henson PM, Janssen WJ, Schwartz DA, Boucher RC, Dickey BF, Evans CM. Muc5b is required for airway defence. Nature. 2014 Jan 16;505(7483):412-6. doi: 10.1038/nature12807. Epub 2013 Dec 8.
Kirkham S, Kolsum U, Rousseau K, Singh D, Vestbo J, Thornton DJ. MUC5B is the major mucin in the gel phase of sputum in chronic obstructive pulmonary disease. Am J Respir Crit Care Med. 2008 Nov 15;178(10):1033-9. doi: 10.1164/rccm.200803-391OC. Epub 2008 Sep 5.
Fujisawa T, Chang MM, Velichko S, Thai P, Hung LY, Huang F, Phuong N, Chen Y, Wu R. NF-kappaB mediates IL-1beta- and IL-17A-induced MUC5B expression in airway epithelial cells. Am J Respir Cell Mol Biol. 2011 Aug;45(2):246-52. doi: 10.1165/rcmb.2009-0313OC. Epub 2010 Oct 8.
Yang D, Biragyn A, Hoover DM, Lubkowski J, Oppenheim JJ. Multiple roles of antimicrobial defensins, cathelicidins, and eosinophil-derived neurotoxin in host defense. Annu Rev Immunol. 2004;22:181-215. doi: 10.1146/annurev.immunol.22.012703.104603.
Harder J, Meyer-Hoffert U, Teran LM, Schwichtenberg L, Bartels J, Maune S, Schroder JM. Mucoid Pseudomonas aeruginosa, TNF-alpha, and IL-1beta, but not IL-6, induce human beta-defensin-2 in respiratory epithelia. Am J Respir Cell Mol Biol. 2000 Jun;22(6):714-21. doi: 10.1165/ajrcmb.22.6.4023.
Parameswaran GI, Sethi S, Murphy TF. Effects of bacterial infection on airway antimicrobial peptides and proteins in COPD. Chest. 2011 Sep;140(3):611-617. doi: 10.1378/chest.10-2760. Epub 2011 Feb 24.
Millares L, Marin A, Garcia-Aymerich J, Sauleda J, Belda J, Monso E; PAC-COPD Study Group. Specific IgA and metalloproteinase activity in bronchial secretions from stable chronic obstructive pulmonary disease patients colonized by Haemophilus influenzae. Respir Res. 2012 Dec 11;13(1):113. doi: 10.1186/1465-9921-13-113.
Medzhitov R. Toll-like receptors and innate immunity. Nat Rev Immunol. 2001 Nov;1(2):135-45. doi: 10.1038/35100529.
Clarke TB, Davis KM, Lysenko ES, Zhou AY, Yu Y, Weiser JN. Recognition of peptidoglycan from the microbiota by Nod1 enhances systemic innate immunity. Nat Med. 2010 Feb;16(2):228-31. doi: 10.1038/nm.2087. Epub 2010 Jan 17.
Other Identifiers
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IIBSP-MIC-2015-57
Identifier Type: -
Identifier Source: org_study_id