Association of serum surfactant protein D and SFTPD gene variants with asthma in Danish children, adolescents, and young adults

Abstract Background Surfactant Protein D (SP‐D) is a pattern recognition molecule belonging to the family of collectins expressed in multiple human organ systems, including the lungs. Previous studies have shown that SP‐D levels in bronchoalveolar lavage samples decrease and serum levels increase in...

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Main Authors: Benjamin Hoffmann‐Petersen, Raymond Suffolk, Jens J. H. Petersen, Thomas H. Petersen, Charlotte Brasch‐Andersen, Arne Høst, Susanne Halken, Grith L. Sorensen, Lone Agertoft
Format: Article
Language:English
Published: Wiley 2022-02-01
Series:Immunity, Inflammation and Disease
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Online Access:https://doi.org/10.1002/iid3.560
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author Benjamin Hoffmann‐Petersen
Raymond Suffolk
Jens J. H. Petersen
Thomas H. Petersen
Charlotte Brasch‐Andersen
Arne Høst
Susanne Halken
Grith L. Sorensen
Lone Agertoft
author_facet Benjamin Hoffmann‐Petersen
Raymond Suffolk
Jens J. H. Petersen
Thomas H. Petersen
Charlotte Brasch‐Andersen
Arne Høst
Susanne Halken
Grith L. Sorensen
Lone Agertoft
author_sort Benjamin Hoffmann‐Petersen
collection DOAJ
description Abstract Background Surfactant Protein D (SP‐D) is a pattern recognition molecule belonging to the family of collectins expressed in multiple human organ systems, including the lungs. Previous studies have shown that SP‐D levels in bronchoalveolar lavage samples decrease and serum levels increase in patients suffering from asthma, possibly due to a combination of induced SP‐D synthesis and decreased air–blood barrier integrity. The aims of this study were to investigate whether serum levels of SP‐D and common variants in the SP‐D gene were associated with asthma in adolescents and young adults. Methods Prospective observational study including 449 adolescents and young adults (age 11–27 years) previously diagnosed with asthma during a 2‐year period from 2003 to 2005 (0–16 years). At follow‐up from 2016 to 2017, 314 healthy controls with no history of asthma were recruited. Serum SP‐D was analyzed on samples obtained at baseline as well as samples obtained at follow‐up. SP‐D genotyping was performed for rs721917, rs2243639, and rs3088308. Results No differences were found in mean levels of sSP‐D and SFTPD genotype among subjects with current asthma, no current asthma, and controls. Serum SP‐D and SFTPD genotype were not associated with any clinical parameters of asthma. Furthermore, baseline sSP‐D was not associated with asthma at follow‐up. Conclusion Serum surfactant protein D and common SP‐D gene variants were not associated with asthma in Danish adolescents and young adults with mild to moderate asthma. Serum surfactant protein D did not demonstrate any value as a clinical biomarker of asthma.
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spelling doaj-art-2b58bfb7f3ea45d7b8c9bd2793ebb8642025-08-20T02:25:51ZengWileyImmunity, Inflammation and Disease2050-45272022-02-0110218920010.1002/iid3.560Association of serum surfactant protein D and SFTPD gene variants with asthma in Danish children, adolescents, and young adultsBenjamin Hoffmann‐Petersen0Raymond Suffolk1Jens J. H. Petersen2Thomas H. Petersen3Charlotte Brasch‐Andersen4Arne Høst5Susanne Halken6Grith L. Sorensen7Lone Agertoft8Hans Christian Andersen Children's Hospital Odense University Hospital Odense DenmarkDepartment of Pediatrics Hospital of Southern Jutland Aabenraa DenmarkDepartment of Pediatrics Hospital of Southern Jutland Esbjerg DenmarkDepartment of Pediatrics Hospital of Southern Jutland Kolding DenmarkDepartment of Clinical Genetics Odense University Hospital Odense DenmarkHans Christian Andersen Children's Hospital Odense University Hospital Odense DenmarkHans Christian Andersen Children's Hospital Odense University Hospital Odense DenmarkInstitute of Molecular Medicine University of Southern Denmark Odense DenmarkHans Christian Andersen Children's Hospital Odense University Hospital Odense DenmarkAbstract Background Surfactant Protein D (SP‐D) is a pattern recognition molecule belonging to the family of collectins expressed in multiple human organ systems, including the lungs. Previous studies have shown that SP‐D levels in bronchoalveolar lavage samples decrease and serum levels increase in patients suffering from asthma, possibly due to a combination of induced SP‐D synthesis and decreased air–blood barrier integrity. The aims of this study were to investigate whether serum levels of SP‐D and common variants in the SP‐D gene were associated with asthma in adolescents and young adults. Methods Prospective observational study including 449 adolescents and young adults (age 11–27 years) previously diagnosed with asthma during a 2‐year period from 2003 to 2005 (0–16 years). At follow‐up from 2016 to 2017, 314 healthy controls with no history of asthma were recruited. Serum SP‐D was analyzed on samples obtained at baseline as well as samples obtained at follow‐up. SP‐D genotyping was performed for rs721917, rs2243639, and rs3088308. Results No differences were found in mean levels of sSP‐D and SFTPD genotype among subjects with current asthma, no current asthma, and controls. Serum SP‐D and SFTPD genotype were not associated with any clinical parameters of asthma. Furthermore, baseline sSP‐D was not associated with asthma at follow‐up. Conclusion Serum surfactant protein D and common SP‐D gene variants were not associated with asthma in Danish adolescents and young adults with mild to moderate asthma. Serum surfactant protein D did not demonstrate any value as a clinical biomarker of asthma.https://doi.org/10.1002/iid3.560adolescentasthmabiomarkerchildsurfactant protein D
spellingShingle Benjamin Hoffmann‐Petersen
Raymond Suffolk
Jens J. H. Petersen
Thomas H. Petersen
Charlotte Brasch‐Andersen
Arne Høst
Susanne Halken
Grith L. Sorensen
Lone Agertoft
Association of serum surfactant protein D and SFTPD gene variants with asthma in Danish children, adolescents, and young adults
Immunity, Inflammation and Disease
adolescent
asthma
biomarker
child
surfactant protein D
title Association of serum surfactant protein D and SFTPD gene variants with asthma in Danish children, adolescents, and young adults
title_full Association of serum surfactant protein D and SFTPD gene variants with asthma in Danish children, adolescents, and young adults
title_fullStr Association of serum surfactant protein D and SFTPD gene variants with asthma in Danish children, adolescents, and young adults
title_full_unstemmed Association of serum surfactant protein D and SFTPD gene variants with asthma in Danish children, adolescents, and young adults
title_short Association of serum surfactant protein D and SFTPD gene variants with asthma in Danish children, adolescents, and young adults
title_sort association of serum surfactant protein d and sftpd gene variants with asthma in danish children adolescents and young adults
topic adolescent
asthma
biomarker
child
surfactant protein D
url https://doi.org/10.1002/iid3.560
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