PMID- 23460403 OWN - NLM STAT- MEDLINE DCOM- 20140211 LR - 20160511 IS - 2042-6984 (Electronic) IS - 2042-6976 (Linking) VI - 3 IP - 7 DP - 2013 Jul TI - Upper airway inflammation exacerbates bronchial hyperreactivity in mouse models of rhinosinusitis and allergic asthma. PG - 532-42 LID - 10.1002/alr.21160 [doi] AB - BACKGROUND: Recent studies have suggested that upper airway inflammation has a strong impact on lower airway diseases. The purpose of this study was to assess whether nasal inflammation could exacerbate allergic asthma in a mouse model. METHODS: Mice were assigned to 4 groups: control (Cont), either rhinosinusitis (R) or allergic asthma (A) alone, and both rhinosinusitis and allergic asthma (R&A). Mice underwent induction of nasal inflammation (R and R&A) or sham surgery (Cont and A) on day 1. Mice in the A and R&A groups were sensitized to ovalbumin on days 1, 7, and 14, followed by aerosol challenge on days 18 to 20, whereas in the Cont and R groups only saline was administered. All mice were assessed for airway hyperresponsiveness (AHR) and were euthanized on day 21. The sera, bronchoalveolar lavage fluids (BALFs), and nasal and lung tissues were collected for further analyses. RESULTS: Histology findings confirmed upper and lower airway inflammation in experimental mice. Significantly increased AHR and total serum immunoglobulin E (IgE) were observed in the R&A group when compared with those of the Cont, R, and A groups. Responses to IgG2a induction were also found in sera and BALFs from mice with rhinosinusitis (R and R&A). Higher levels of interleukin 4 (IL-4) and IL-13, and increased eosinophilic inflammation were detected in BALFs and lung tissues from the experimental groups when compared with those from the Cont group. CONCLUSION: Our results confirm that upper airway inflammation could exacerbate allergic asthma, and provide support to the concept of "one airway, one disease. CI - (c) 2013 ARS-AAOA, LLC. FAU - Liang, Kai-Li AU - Liang KL AD - Department of Otolaryngology, Taichung Veterans General Hospital, Taichung, Taiwan. FAU - Jiang, Rong-San AU - Jiang RS FAU - Wang, Ren-Ching AU - Wang RC FAU - Koo, Malcolm AU - Koo M FAU - Chen, Shyh-Chang AU - Chen SC FAU - Huang, Wan-Chun AU - Huang WC FAU - Yeh, Yueh-Chiao AU - Yeh YC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130304 PL - United States TA - Int Forum Allergy Rhinol JT - International forum of allergy & rhinology JID - 101550261 RN - 0 (Allergens) RN - 0 (Immunoglobulin G) RN - 0 (Interleukin-13) RN - 207137-56-2 (Interleukin-4) RN - 37341-29-0 (Immunoglobulin E) RN - 9006-59-1 (Ovalbumin) SB - IM MH - Allergens/administration & dosage MH - Animals MH - Asthma/immunology/pathology/*physiopathology MH - Bronchial Hyperreactivity/immunology/pathology/*physiopathology MH - Bronchial Provocation Tests MH - Bronchoalveolar Lavage Fluid/cytology/immunology MH - Disease Models, Animal MH - Immunoglobulin E/blood/immunology MH - Immunoglobulin G/blood/immunology MH - Interleukin-13/immunology MH - Interleukin-4/immunology MH - Leukocyte Count MH - Lung/immunology/pathology/physiopathology MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Nasal Cavity/pathology MH - Ovalbumin/administration & dosage MH - Rhinitis/immunology/pathology/*physiopathology MH - Sinusitis/immunology/pathology/*physiopathology OTO - NOTNLM OT - allergen OT - allergic rhinitis OT - asthma OT - bronchial hyperreactivity OT - mouse OT - ovalbumin OT - rhinosinusitis EDAT- 2013/03/06 06:00 MHDA- 2014/02/12 06:00 CRDT- 2013/03/06 06:00 PHST- 2012/09/28 00:00 [received] PHST- 2012/11/21 00:00 [revised] PHST- 2013/01/22 00:00 [accepted] PHST- 2013/03/06 06:00 [entrez] PHST- 2013/03/06 06:00 [pubmed] PHST- 2014/02/12 06:00 [medline] AID - 10.1002/alr.21160 [doi] PST - ppublish SO - Int Forum Allergy Rhinol. 2013 Jul;3(7):532-42. doi: 10.1002/alr.21160. Epub 2013 Mar 4.