PMID- 20502734 OWN - NLM STAT- MEDLINE DCOM- 20110525 LR - 20110408 IS - 0300-0729 (Print) IS - 0300-0729 (Linking) VI - 48 IP - 1 DP - 2010 Mar TI - Nasal polyp fibroblasts produce MIP-3alpha in response to toll-like receptor ligands and cytokine stimulation. PG - 41-6 LID - 10.4193/Rhin09.019 [doi] AB - OBJECTIVE: Dendritic cells (DCs) play important roles in the development and perpetuation of immune responses. DCs are present in upper airway diseases such as chronic rhinosinusitis with nasal polyps. However, the mechanisms of how DCs migrate into the upper airway mucosa during upper airway inflammatory diseases remains unclear. Macrophage inflammatory protein-3alpha (MIP-3alpha) is known to be a migratory factor for immature DCs. There have been very few reports regarding cells producing this chemokine in the airways. To investigate this, we stimulated fibroblasts cultured from the nasal polyps with various toll-like receptor (TLR) ligands, which are derived from microorganisms, and IL-beta1 and TNF-alpha, which are proinflammatory cytokines, and analyzed their ability to produce MIP-3alpha. METHODS: Fibroblast lines were established from nasal polyps and stimulated with TLR2, 3, 4, 5, 7/8 and 9 ligands, IL-beta1 and TNF-alpha. MIP-3alpha mRNA expression in nasal polyp fibroblasts (NPF) was evaluated by real-time RT-PCR and the protein levels of MIP-3alpha in the supernatants of stimulated NPF was measured by ELISA. RESULTS: Stimulation with TLR2, 3, 4 and 5 ligands, IL-beta1 and TNF-alpha, induced MIP-3alpha gene expression and protein production in the cultured NPF This response was dose- and time-dependent. CONCLUSION: NPF possibly play an important role in the recruitment of DCs in upper airway diseases such as chronic rhinosinusitis with nasal polyps through the production of MIP-3alpha. FAU - Nonaka, Manabu AU - Nonaka M AD - Department of Otolaryngology, Nippon Medical School, Sendagi, Tokyo, Japan. nonaka@nms.ac.jp FAU - Ogihara, Nozomu AU - Ogihara N FAU - Fukumoto, Akira AU - Fukumoto A FAU - Sakanushi, Atsuko AU - Sakanushi A FAU - Kusama, Kaoru AU - Kusama K FAU - Pawankar, Ruby AU - Pawankar R FAU - Yagi, Toshiaki AU - Yagi T LA - eng PT - Journal Article PL - Netherlands TA - Rhinology JT - Rhinology JID - 0347242 RN - 0 (CCL20 protein, human) RN - 0 (Chemokine CCL20) RN - 0 (Interleukin-1beta) RN - 0 (Ligands) RN - 0 (Toll-Like Receptors) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Chemokine CCL20/*metabolism MH - Dendritic Cells/physiology MH - Fibroblasts/*metabolism MH - Humans MH - Interleukin-1beta/physiology MH - Ligands MH - Nasal Polyps/*metabolism/pathology MH - Toll-Like Receptors/*physiology MH - Tumor Necrosis Factor-alpha/physiology EDAT- 2010/05/27 06:00 MHDA- 2011/05/26 06:00 CRDT- 2010/05/27 06:00 PHST- 2010/05/27 06:00 [entrez] PHST- 2010/05/27 06:00 [pubmed] PHST- 2011/05/26 06:00 [medline] AID - 09.019 [pii] AID - 10.4193/Rhin09.019 [doi] PST - ppublish SO - Rhinology. 2010 Mar;48(1):41-6. doi: 10.4193/Rhin09.019.