Volume 27, Issue 7 pp. 696-701
Original Article

Exploration of early-life candidate biomarkers for childhood asthma using antibody arrays

Haili Xu

Haili Xu

Southwest Environmental Health Sciences Center, The University of Arizona, Tucson, AZ, USA

Department of Pharmacology, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Timothy Radabaugh

Timothy Radabaugh

Southwest Environmental Health Sciences Center, The University of Arizona, Tucson, AZ, USA

Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Zhenqiang Lu

Zhenqiang Lu

Southwest Environmental Health Sciences Center, The University of Arizona, Tucson, AZ, USA

Department of Epidemiology and Biostatistics, College of Public Health, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Michael Galligan

Michael Galligan

Southwest Environmental Health Sciences Center, The University of Arizona, Tucson, AZ, USA

Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Dean Billheimer

Dean Billheimer

Southwest Environmental Health Sciences Center, The University of Arizona, Tucson, AZ, USA

Department of Epidemiology and Biostatistics, College of Public Health, The University of Arizona, Tucson, AZ, USA

Bio5 Institute, The University of Arizona, Tucson, AZ, USA

Statistics Consulting Laboratory, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Donata Vercelli

Donata Vercelli

Southwest Environmental Health Sciences Center, The University of Arizona, Tucson, AZ, USA

Bio5 Institute, The University of Arizona, Tucson, AZ, USA

Department of Cellular and Molecular Medicine, The University of Arizona, Tucson, AZ, USA

Arizona Respiratory Center, The University of Arizona, Tucson, AZ, USA

Arizona Center for the Biology of Complex Disease, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Anne L. Wright

Anne L. Wright

Arizona Respiratory Center, The University of Arizona, Tucson, AZ, USA

Department of Pediatrics, College of Medicine, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Terrence J. Monks

Terrence J. Monks

Southwest Environmental Health Sciences Center, The University of Arizona, Tucson, AZ, USA

Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, AZ, USA

Bio5 Institute, The University of Arizona, Tucson, AZ, USA

Arizona Center for the Biology of Complex Disease, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Marilyn Halonen

Marilyn Halonen

Department of Pharmacology, The University of Arizona, Tucson, AZ, USA

Bio5 Institute, The University of Arizona, Tucson, AZ, USA

Arizona Respiratory Center, The University of Arizona, Tucson, AZ, USA

Arizona Center for the Biology of Complex Disease, The University of Arizona, Tucson, AZ, USA

Search for more papers by this author
Serrine S. Lau

Corresponding Author

Serrine S. Lau

Southwest Environmental Health Sciences Center, The University of Arizona, Tucson, AZ, USA

Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, AZ, USA

Bio5 Institute, The University of Arizona, Tucson, AZ, USA

Arizona Center for the Biology of Complex Disease, The University of Arizona, Tucson, AZ, USA

Correspondence

Serrine S. Lau, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Ave., Detroit, MI 48201, USA

Tel.: +(313) 577-1574

Fax: +(313) 577-0457

E-mail: [email protected]

Search for more papers by this author
First published: 19 July 2016
Citations: 9

Abstract

Background

Proteomic approaches identifying biomarkers have been applied to asthma to only a very limited extent.

Methods

With an antibody array (RayBiotech, Norcross, GA, USA), the relative intensity and rank differences of 444 proteins were compared in 24 plasma samples obtained at age 3, 11 from children with and 12 without asthma diagnoses at ages 5 and 9. Protein candidates identified by antibody array were quantitated by ELISA in an enlarged sample. Proteins found to differentiate children with and without asthma were also examined for association with known Year 1 asthma risk factors, eczema, and wheeze.

Results

In the antibody array, four proteins had rank differences between asthma and non-asthma groups (FDR <0.1). By ELISA, mean log (±s.e.m.) erythropoietin (EPO) level (IU/l) was lower (0.750 ± 0.048 vs. 0.898 ± 0.035; p = 0.006) and mean (±s.e.m.) soluble GP130 (sGP130) level (ng/ml) was higher in the asthma vs. the non-asthma group (302 ± 13 vs. 270 ± 8; p = 0.041). The other 2 array proteins (galactin-3 and eotaxin-3) did not differ by ELISA by asthma. EPO related to the asthma risk factor, first year eczema, whereas sGP130 related to first year wheeze.

Conclusions

Through two independent assessments, age 3 plasma levels of EPO and sGP130 were found related to childhood asthma.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.