ABSTRACT
Objective:To observe the expression of wnt1 in patients with oral submucous fibrosis(OSF) before and after treatment.Methods:40 patients with OSF were treated with triamcinolone acetonide combined with salvia miltiorrhiza,Before and after 4 weeks treatment,pain score of VAS and mouth opening(MO) were examined.wnt1 protein in saliva and gingival crevicular fluid(GCF) was examined by ELISA,wnt1 mRNA expression in buccal mucosa tissue was examined by real-time fluorescent quantitative PCR.20 healthy subjects were served as the controls.Results:The expression of wnt1 in OSF group[buccal tissue RT-PCR (36.89 ± 10.40) × 10-5,saliva ELISA (61.61 ± 4.45) ng/L,GCF ELISA (56.20 ± 3.65) ng/L] were significantly higher than that of control group [buccal tissue RT-PCR (4.63 ± 1.53) × 10-5,saliva ELISA (40.26 ± 3.00) ng/L,GCF ELISA (53.45 ± 1.74) ng/L)] (P ＜ 0.01).In OSF group,after treatment VAS was decreased(P ＜0.01),MO increased(P ＜0.01)),Buccal mucosa wnt1 mRNA level was positively correlated with wnt1 protein in saliva and GCF,negativity with MO (P ＜ 0.05),saliva wnt1 was positively correlated with VAS and GCF wnt1,negitively with MO(P ＜ 0.05).Conclusion:Wnt1 might take part in the occurrence and development of OSF.The detection of wnt1 in saliva and GCF might be a noninvasive method for the evaluation of OSF treatment.
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Objective:To study the significance of H19 gene in the progress from normal mucosa through oral submucous fibrosis (OSF) to carcinogenesis.Methods:Real-time fluorescent quantitative PCR technique was used to detect LncRNA H19 expression level in 12 cases of normal buccal mucosa tissue,33 cases of OSF buccal mucosa tissue and 31 cases of buccal carcinoma with OSF.Results:The relative expression levels of LncRNA H19 in normal buccal mucosa tissues,OSF buccal mucosa tissue and buccal carcinoma with OSF tissue were 1.17 ±0.37,3.44 ± 1.08 and 8.88 ± 1.78 respectively(between each 2 groups,P ＜ 0.01).Conclusion:H19 may involve the occurrence and canceration of OSF.
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Aims and Objectives: To compare the autofluorescence spectra of oral submucous fibrosis (OSF) with normal mucosa, the autofluorescence spectra of OSF before and after treatment with intralesional dexamethasone and hyaluronidase, the clinical improvement following treatment with the changes in autofluorescence spectra and to prove that autofluorescence spectroscopy is a good method for diagnosis and assessment of treatment effectiveness in OSF. Materials and Methods: The study was conducted at the Department of Oral Medicine and Radiology, Tamilnadu Government Dental College and Hospital, Chennai and Division of Medical Physics and Lasers, Department of Physics, Anna University, Chennai in 20 patients seeking medical management for symptomatic OSF and 20 patients who had dental caries only without any oral mucosal diseases and oral habits were used as normal controls. Their ages ranged from 20 to 40 years, including both male and female. In vivo fluorescence emission spectra were obtained using a handheld optical fiber probe attached to a Fluoromax-2 spectrofluorometer. Results: The fluorescence spectrum of OSF had an intense fluorescence emission at 385 nm with a secondary emission peak at 440 nm compared with that of the normal oral mucosa. The average fluorescence spectrum of the post treated OSF mucosa had a lesser intensity around 385 nm and a higher intensity around 440 nm than that of the pre treated OSF mucosa, thereby mimicking the normal oral mucosa. All the three clinical parameters (maximal mouth opening, tongue protrusion and the severity of burning sensation) showed a high statistical significance, with P < 0.001, as in the case of classification of pre treated OSF mucosa from the post treated OSF mucosa using the autofluorescence technique. Conclusion: The change in the fluorescence emission spectrum for both normal and OSF mucosa before and after treatment can be explained by analyzing the changes in the fluorescence intensity of the endogenous fluorophores.
Subject(s)
Adult , Anti-Inflammatory Agents/therapeutic use , Case-Control Studies , Collagen/drug effects , Collagen/radiation effects , Dexamethasone/therapeutic use , Drug Therapy, Combination , Female , Fluorescence , Humans , Hyaluronoglucosaminidase/therapeutic use , Injections, Intralesional , Male , Mouth Mucosa/pathology , Mouth Mucosa/radiation effects , Oral Submucous Fibrosis/drug therapy , Oral Submucous Fibrosis/pathology , Pilot Projects , Reference Values , Spectrometry, Fluorescence/methods , Treatment Outcome , Young AdultABSTRACT
Objective To construct the recombinant adenovirus of mouse Osf2/Cbfal gene and to observe its ability to infect NIH3T3 fibroblasts. Methods The Osf2/Cbfal gene fragment was cloned into the shuttle plasmid pAdTrack-CMV to form the transfer vector by the method of homogenous recombination in bacteria. Then the recombinant adenovirus was transfected into NIH3T3 cells using Lipofectine DOTAP, The target gene was detected by poly-merase chain reaction (PCR). The titer and its infection rate were determined using the green fluorescent protein (GFP) expression in the shuttle plasmid. Results Restriction endonuclease and PCR analyses confirmed that the Osf2/Cbfal gene was successfully inserted into the adenovirus vector. The titer of the recombinant adenovirus was 1.6?1012 pfu/ml. The adenovirus had a strong effect on NIH3T3 cells. Conclusion The recombinant adenovirus containing Osf2/Cbfal gene was successfully constructed by the method of homogenous recombination in bacteria.