PMID- 21679503 OWN - NLM STAT- MEDLINE DCOM- 20111101 LR - 20181201 IS - 1945-8932 (Electronic) IS - 1945-8932 (Linking) VI - 25 IP - 2 DP - 2011 Mar-Apr TI - Heparin inhibits mucus hypersecretion in airway epithelial cells. PG - 69-74 LID - 10.2500/ajra.2011.25.3562 [doi] AB - BACKGROUND: Heparin is one of the most important anticoagulant drugs. It has been known that heparin also possesses anti-inflammatory activities. Mucus hypersecretion is an important characteristic of airway inflammation. However, little is known about the regulatory effects of heparin on mucus hypersecretion in airway epithelial cells. To elucidate the anti-inflammatory function of heparin in airway epithelial cells, we examined the in vivo effects of heparin on mucus hypersecretion and neutrophil infiltration in rat nasal epithelium. We also examined the in vitro effects of heparin on mucin production and IL-8 secretion from cultured human airway epithelial cells. METHODS: We induced hypertrophic and metaplastic changes of goblet cells in rat nasal epithelium by intranasal lipopolysaccharide (LPS) instillation. The effects of intranasal instillation with heparin on mucus production and neutrophil infiltration were examined. in vitro effects of heparin on airway epithelial cells were examined using cultured NCI-H292 cells. Mucus secretion was evaluated by enzyme-linked immunosorbent assay using an anti-MUC5AC monoclonal antibody. RESULTS: Intranasal instillation with unfractionated heparin (UFH; 100 IU/0.1 mL) or low molecular weight heparin (LMWH; 100 IU/0.1 mL) at 30 minutes before LPS instillation significantly inhibited LPS-induced mucus production and neutrophil infiltration in rat nasal epithelium. UFH or LMWH inhibited tumor necrosis factor alpha (10 ng/mL)-induced secretion of MUC5AC and IL-8 from NCI-H292 cells in a dose-dependent manner (0.01-10 IU/mL). MUC5AC mRNA expression was also significantly inhibited. CONCLUSION: These results indicate that heparin inhibits airway mucus hypersecretion in airway epithelial cells directly and indirectly through the suppression of IL-8 secretion and neutrophil infiltration. FAU - Ogawa, Takao AU - Ogawa T AD - Department of Otorhinolaryngology, Shiga University of Medical Science, Otsu, Japan. takao971@belle.shiga-med.ac.jp FAU - Shimizu, Shino AU - Shimizu S FAU - Tojima, Ichiro AU - Tojima I FAU - Kouzaki, Hideaki AU - Kouzaki H FAU - Shimizu, Takeshi AU - Shimizu T LA - eng PT - Journal Article PL - United States TA - Am J Rhinol Allergy JT - American journal of rhinology & allergy JID - 101490775 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Interleukin-8) RN - 0 (Lipopolysaccharides) RN - 0 (Mucins) RN - 9005-49-6 (Heparin) SB - IM MH - Administration, Intranasal MH - Animals MH - Anti-Inflammatory Agents/*administration & dosage/adverse effects/pharmacology MH - Cell Line MH - Heparin/*administration & dosage/adverse effects/pharmacology MH - Humans MH - Interleukin-8/metabolism MH - Lipopolysaccharides/administration & dosage MH - Mucins/metabolism MH - Mucus MH - Nasal Mucosa/*drug effects/metabolism/pathology MH - Pneumonia/chemically induced/*drug therapy/pathology/physiopathology MH - Rats MH - Rats, Inbred Strains MH - *Secretory Pathway/drug effects EDAT- 2011/06/18 06:00 MHDA- 2011/11/02 06:00 CRDT- 2011/06/18 06:00 PHST- 2011/06/18 06:00 [entrez] PHST- 2011/06/18 06:00 [pubmed] PHST- 2011/11/02 06:00 [medline] AID - 10.2500/ajra.2011.25.3562 [doi] PST - ppublish SO - Am J Rhinol Allergy. 2011 Mar-Apr;25(2):69-74. doi: 10.2500/ajra.2011.25.3562.