Apolipoprotein e and periostin are potential biomarkers of nasal mucosal inflammation a parallel approach of in vitro and in vivo secretomes

Youn Wook Chung, Jimin Cha, Seunghan Han, Yong Chen, Marjan Gucek, Hyung Ju Cho, Kiichi Nakahira, Augustine M.K. Choi, Ji Hwan Ryu, Joo Heon Yoon

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


No previously suggested biomarkers of nasal mucosal inflammation have been practically applied in clinical fields, and nasal epithelium-derived secreted proteins as biomarkers have not specifically been investigated. The goal of this study was to identify secreted proteins that dynamically change during the differentiation from basal cells to fully differentiated cells and examine whether nasal epithelium-derived proteins can be used as biomarkers of nasal mucosal inflammation, such as chronic rhinosinusitis. To achieve this goal, we analyzed two secretomes using the isobaric tag for relative and absolute quantification technique. From in vitro secretomes, we identified the proteins altered in apical secretions of primary human nasal epithelial cells according to the degree of differentiation; from in vivo secretomes, we identified the increased proteins in nasal lavage fluids obtained from patients 2 weeks after endoscopic sinus surgery for chronic sinusitis. We then used a parallel approach to identify specific biomarkers of nasal mucosal inflammation; first, we selected apolipoprotein E as a nasal epithelial cell-derived biomarker through screening proteins that were upregulated in both in vitro and in vivo secretomes, and verified highly secreted apolipoprotein E in nasal lavage fluids of the patients by Western blotting. Next, we selected periostin as an inflammatory mediator-inducible biomarker from in vivo secretomes, the secretion of which was not induced under in vitro culture conditions. We demonstrated that those two nasal epithelium-derived proteins are possible biomarkers of nasal mucosal inflammation.

Original languageEnglish (US)
Pages (from-to)23-34
Number of pages12
JournalAmerican Journal of Respiratory Cell and Molecular Biology
Issue number1
StatePublished - 2020


  • Air-liquid interface culture
  • Mucosal secretions
  • Nasal epithelium
  • Secreted proteins
  • Secretome

ASJC Scopus subject areas

  • Molecular Biology
  • Pulmonary and Respiratory Medicine
  • Clinical Biochemistry
  • Cell Biology


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