Involvement of TRPV1 and AQP2 in hypertonic stress by xylitol in odontoblast cells
| Autor: | Mari Fujisawa, Yoshiko Kawakami, Keiko Miyashita, Mitsuo Torii, Yoko Morimoto-Yamashita, Masayuki Tokuda |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Lipopolysaccharides
Time Factors Lipopolysaccharide Hypertonic Solutions TRPV Cation Channels Xylitol Biochemistry Vanilloids Mice chemistry.chemical_compound Rheumatology Osmotic Pressure medicine Animals Orthopedics and Sports Medicine RNA Messenger Viability assay RNA Small Interfering Molecular Biology Aquaporin 2 Odontoblasts Interleukin-6 Chemistry Cell Biology Molecular biology carbohydrates (lipids) Kinetics Hypertonic Stress Cell culture Sorbitol Mannitol medicine.drug |
| Zdroj: | Connective Tissue Research. 56:44-49 |
| ISSN: | 1607-8438 0300-8207 |
| DOI: | 10.3109/03008207.2014.984804 |
| Popis: | To examine the responses of mouse odontoblast-lineage cell line (OLC) cultures to xylitol-induced hypertonic stress.OLCs were treated with xylitol, sucrose, sorbitol, mannitol, arabinose and lyxose. Cell viability was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium assay. The expression of transient receptor potential vanilloids (TRPV) 1, 3 and 4 was detected using a reverse transcriptase-polymerase chain reaction (RT-PCR) assay. The expression of aquaporin (AQP) 2 was detected using immunofluorescence and Western blotting analysis. The expression of interleukin-6 (IL-6) under xylitol-induced hypertonic stress was assessed using an enzyme-linked immunosorbent assay (ELISA). Small interfering ribonucleic acid (siRNA) for AQP-2 was used to inhibition assay.Xylitol-induced hypertonic stress did not decrease OLC viability, unlike the other sugars tested. OLCs expressed TRPV1, 3 and 4 as well as AQP2. Xylitol inhibited lipopolysaccharide (LPS)-induced IL-6 expression after 3 h of hypertonic stress. TRPV1 mRNA expression was upregulated by xylitol. Costimulation with HgCl2 (AQP inhibitor) and Ruthenium red (TRPV1 inhibitor) decreased cell viability with xylitol stimulation. OLCs treated with siRNA against TRPV1 exhibited decreased cell viability with xylitol stimulation.OLCs have high-cell viability under xylitol-induced hypertonic stress, which may be associated with TRPV1 and AQP2 expressions. |
| Databáze: | OpenAIRE |
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