2014 Fiscal Year Final Research Report
Newky gene therapy using decoy system for degenerative arthritis
| Project/Area Number |
24659838
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Pathobiological dentistry/Dental radiology
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| Research Institution | Kanazawa Medical University (2014)
Shimane University (2012-2013) |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 変形性関節症 / 細胞外基質 / 遺伝子治療 |
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| Outline of Final Research Achievements |
Human TMJ cells were isolated and cultured from surgically resected mandibular condyles, and were transfected with either NF-kB decoy, which are constituted of synthetic double stranded oligodeoxynucleotide (17bp) including consensus sequence of NF-kB binding site (7bp), or mutant type decoy using the HVJ (hemagglutinating virus of Japan)-liposome method. Transfected and non-transfected cells were stimulated by TNF-alpha (-100ng/ml) and examined for uPA and MMP-1 mRNAs and protein expression by a Northern blot analysis and ELISA. The expression of uPA and MMP-1 mRNAs of TMJ cells was enhanced by TNF-alpha stimulation in a dose dependent manner. While uPA and MMP-1 mRNAs and protein expression by cultured cells were not affected by the treatment with either HVJ-liposome containing mutant type decoy or empty one, transfection of wild type decoy decreased uPA and MMP-1 mRNAs expression to 30% and proteins to about 40% as compared with non-transfected and TNF-alpha stimulated cells.
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| Free Research Field |
口腔外科学
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