IL-2、IL-1O在口腔扁平苔藓发病中的作用

目的：通过对口腔扁平苔藓（OLP）局部组织及外周血中IL-2、IL-10表达进行研究,进-步探讨OLP发病机制。方法：应用免疫组织化学SABC法检测30例OLP中IL-2、IL-10的表达数量及分布,同时用ELISA法检测外周血中IL-2、IL-10的含量。结果：①在病损组织中,OLP组中IL-2、IL-10表达显著高于对照组（P〈0．05）。IL-2主要分布在淋巴细胞浸润带,在基底膜附近较集中;IL-10主要分布在固有层,远离基底膜。②在外周血中,糜烂型OLP组IL-2、IL-10含量明显高于对照组和非糜烂型OLP组（P〈O．05）。结论：①根据IL-2、IL-10在OLP中表达和分布情况,提示IL-2、IL-10在OLP发病机制中参与了机体免疫的调节和介导作用。②外周血中IL-10高表达,提示糜烂型OLP患者全身的免疫反应参与了本病的形成或可能伴有全身免疫系统功能紊乱。     

口腔扁平苔藓患者外周血IFN-γ、IL-4和IL-17的表达及意义

目的：探讨Th1、Th2、Th17代表性细胞因子IFN-γ、IL-4、IL-17在口腔扁平苔藓（OLP）发病中的作用及意义。方法：采用ELISA法测定60例OLP患者（糜烂型30例,非糜烂型30例）及25例健康人血清中IFN-γ、IL-4、IL-17表达水平,并分析其与OLP临床特征相关性。结果：IFN-γ表达水平在非糜烂型及糜烂型OLP组均低于对照组（P＜0．01）;IL-4表达水平在非糜烂型及糜烂型OLP组均高于对照组（P＜0．01）;IFN-γ／IL-4比值水平在非糜烂型和糜烂型OLP组均低于正常对照组（P＜0．01）。IL-17表达水平在糜烂型OLP组高于对照组（P＜0．05）;非糜烂型OLP组与对照组差异无统计学意义（P＞0．05）。结论：IFN-γ表达降低和IL-4表达增高导致IFN-γ／IL-4比值降低是OLP的免疫病因学因素之一,IL-17蛋白表达增高主要与糜烂型OLP炎症过程有关。     

补血活血法对口腔扁平苔藓患者TNF-α、IL-8 及sIL-2R水平的调节作用

目的　探讨补血活血中药对口腔扁平苔藓（OLP）患者TNF-α、IL-8及sIL-2R水平调节作用，为临床用药提供依据。方法　40例OLP患者随机分为两组，分别给予补血活血中药和雷公藤总甙片进行治疗，采用双抗体夹心法检测治疗前后TNF-α、IL-8及sIL-2R水平的变化。结果　治疗2个月后补血活血中药对口腔扁平苔藓（OLP）患者的粘膜斑纹改善方面和TNF-α、IL-8及sIL-2R水平调节作用明显优于雷公藤总甙片；还显示患者粘膜充血及白色斑纹程度越重，TNF-α、IL-8及sIL-2R的水平就越高。结论　口腔扁平苔藓患者因病情不同免疫平衡失调的严重程度也不同；补血活血中药是治疗OLP有效的并具有调节免疫功能的药物，值得临床推广应用。     

口腔扁平苔藓患者Th1/Th2的表达及临床意义的研究

目的 观察Th1型和Th2型细胞因子在口腔扁平苔藓(OLP)外周血中的表达。方法 密度梯度离心法分离20例充血糜烂型,16例光滑型OLP病例和19例正常对照组人群的外周血单个核细胞,逆转录-聚合酶链反应法检测各组外周血单个核细胞中IFN-gamma mRNA和IL-4 mRNA的表达;ELISA法检测各组血清中IFN-gamma和IL-4的表达。结果 充血糜烂型和光滑型OLP患者中IL-4 mRNA和蛋白的表达均高于正常对照组,差异有统计学意义(P<0.01);而充血糜烂型和光滑型OLP患者中IFN-gamma mRNA和蛋白的表达均低于正常对照组,差异有统计学意义(P<0.01)。但表达结果在充血糜烂型及光滑型OLP患者组间的差异无统计学意义(P>0.05)。结论 Th1/Th2失衡表达与OLP发病机制密切相关,为临床治疗OLP提供新的思路。     

口腔扁平苔藓患者血清中γ干扰素、白细胞介素4表达水平对免疫应答的调节作用

目的：探讨口腔扁平苔藓(oral lichen planus,OLP)患者血清中γ干扰素(IFN-γ)、白细胞介素4(IL-4)表达水平对免疫应答的调节作用。方法：选取2019年1月—2021年12月首都医科大学附属北京口腔医院王府井部收治的83例OLP患者为实验组，另纳入同期来院的61例健康志愿者为对照组。比较2组患者血清中IFN-γ、IL-4及免疫功能指标的表达情况，并分析实验组IFN-γ、IL-4表达水平与免疫功能指标的关系。采用SPSS 22.0软件包对数据进行统计学分析。结果：实验组IFN-γ、IL-4水平显著高于对照组(P<0.05)。实验组网纹型OLP、糜烂型OLP患者的IFN-γ水平对比差异无统计学意义(P>0.05)，实验组糜烂型OLP患者的IL-4水平显著高于网纹型OLP患者(P<0.05)。实验组CD3⁺、CD4⁺、CD16⁺+CD56⁺、CD4⁺/CD8⁺水平显著低于对照组(P<0.05)，实验组CD8     

口腔扁平苔藓患者Th1／Th2失衡表达的研究

目的：观察口腔扁平苔藓（oral liclaen planus,OLP）患者外周血中Th1、Th2型细胞转录因子T-het和GATA-3以及Thl、Th2型细胞因子的表达,进一步探索OLP的发病机制。方法：通过密度梯度离心法分离20例充血糜烂型,16例光滑型OLP病例和19例正常对照组人群的外周血单个核细胞,逆转录-聚合酶链反应（RT—PCR）法检测各组外周血单个核细胞中T—betmRNA和GATA-3 mRNA的表达;ELISA法检测各组血清中干扰素-γ（interferon gamma,IFN-1）和白细胞介素-4（interleukin-4,IL-4）的表达。结果：充血糜烂型和光滑型OLP患者中T—betmRNA、IFN-γ的表达均低于正常对照组,差异有统计学意义（P〈0．01）;而充血糜烂型和光滑型OEP患者中GATA-3 mRNA、IL-4的表达均高于正常对照组,差异有统计学意义（P〈0．01）。T—bet mRNA和GATA-3 mRNA的表达在充血糜烂型及光滑型OLP患者组间的差异有统计学意义（P〈0．01）;而IFN-γ和IL-4的表达在充血糜烂型及光滑型OLP患者组间的差异无统计学意义（P〉0．05）。结论：Th1／Th2失衡表达与OLP发病机制密切相关,为临床治疗OLP提供参考。     

扁平苔藓患者血清及唾液中IL-1O的表达及相关性研究

目的：探讨口腔扁平苔藓（OLP）患者唾液及血清中白细胞介素-10 （IL-10）的表达情况及其相关性,以进一步了解OLP患者唾液代替血液作为生物学样本来研究OLP中IL-10的可行性.方法：实验分3组：OLP糜烂组15例,OLP非糜烂组15例,正常对照组15例.采用ELISA法分别检测3组对象血清和唾液中IL-10的含量,对结果进行统计分析.结果：OLP糜烂组血清中IL-10水平为（30.11±3.02） pg/mL,明显高于非糜烂组（19.03±3.33） pg/mL和正常对照组（16.43±2.19） pg/mL,差异有统计学意义（P ＜0.05）;OLP糜烂组唾液中IL-10平均水平为（10.05 ±3.12） pg/mL明显高于非糜烂组（5.50±1.1） pg/mL和正常对照组（4.47±1.7） pg/mL,差异有统计学意义（P＜0.05）;两实验组血清和唾液中IL-10水平成正相关,（r=0.731,P＜0.01）.结论：实验组血清和唾液中IL-10水平高度相关,可以通过检查唾液替代检查血液来研究OLP中IL-10的水平.     

口腔扁平苔藓患者血清中白细胞介素-12和白细胞介素-27表达与免疫功能的相关性

目的了解口腔扁平苔藓（OLP）患者血清中白细胞介素（IL）-12和IL-27的表达与患者免疫功能状况的相关性,探讨IL-12和IL-27在OLP免疫发病机制中的作用及意义。方法 选取对照组健康者20例和OLP组患者30例（其中网纹型15例,糜烂型15例）,通过流式细胞术分析OLP患者外周血淋巴细胞亚群CD3+、CD4+、CD8+、CD19+、CD16+56[自然杀伤细胞（NK）]的表达情况,散射比浊法检测患者体液免疫指标免疫球蛋白（Ig）G、IgA、IgM、C3、C4的表达情况。采用酶联免疫吸附试验（ELISA）方法检测血清中IL-12和IL-27的表达水平,分析IL-12和IL-27的表达与OLP患者免疫功能状况及临床特征的相关性。结果 与实验室标准值相比,OLP患者细胞免疫中CD3+、CD4+、CD8+水平降低,CD19+水平增高（P<0.05）;体液免疫中IgM水平增高,C4水平降低（P<0.05）。OLP患者血清中IL-12与IL-27表达水平均高于对照组（P<0.05）。同时相关分析显示,OLP患者血清中IL-12和IL-27的表达水平呈正相关关系（r=0.912,P<0.01）。但是IL-12及IL-27表达水平与OLP体征计分、病程计分等临床特征无相关性（P>0.05）。OLP患者中IL-12和IL-27的表达与CD16+56（NK）存在负相关关系（r₁=-0.416,P₁=0.022;r₂=-0.392,P₂=0.032）,与IgG存在正相关关系（r₁=0.445,P₁=0.014;r₂=0.549,P₂=0.002）。结论OLP患者主要以细胞免疫功能低下为主,同时伴有一定程度的体液免疫功能的紊乱。IL-12和IL-27的异常高表达可能协同引起且促进了OLP的炎症发生发展,并且通过机体代偿性负反馈作用参与了对炎症性免疫应答的调节,在OLP的发病机制中起到了一定作用。     

补血活血法对口腔扁平苔藓患者TNF-a、IL-1、IL-6水平的调节作用

目的：探讨补血活血中药对口腔扁平苔藓（OLP）患者TNF－a、IL－1、IL－6水平调节作用，为临床用药提供依据。方法：50例OLP患者随机分为二组，分别给予补血活血中药和雷公藤总甙片进行治疗，采用双抗体夹心法检测了治疗前后TNF－a、IL－1、IL－6水平的变化。结果：治疗两个月后补血活血中药对口腔扁平苔藓（OLP）患者的粘膜斑纹改善方面和TNF－a、IL－1、IL－6水平调节作用明显优于雷公藤总甙片；还显示患者粘膜充血及白色斑纹程度越重，TNF－α、IL－1、IL－6的水平就越高。结论：口腔扁平苔藓患者因病情不同免疫平衡失调的严重程度也不同；补血活血中药是治疗OLP有效的并具有调节免疫功能的药物，值得临床推广应用。     

维族绝经妇女龈沟液IL-6、血清雌二醇水平与牙周炎的关系

目的:探讨维吾尔族绝经早期的牙周炎患者龈沟液IL-6及血清雌二醇(E2)水平与牙周炎的关系。方法:共79例绝经年限均≤5a的妇女纳入本研究。采集30颗牙周健康牙和49颗牙周炎患牙的龈沟液(GCF),记录牙周临床观察指标。采集慢性牙周炎患者的血样本。应用放射免疫分析法检测GCF中IL-6和血清中E2的浓度。结果:牙周健康组GCF中IL-6浓度为(1088.10±102.33)pg/ml;慢性牙周炎组GCF中IL-6浓度明显高于牙周健康牙组(P<0.005);慢性牙周炎患牙GCF中IL-6浓度与GI、PPD、CAL均呈正相关(r=0.564,P<0.005;r=0.335,P<0.05;r=0.324,P<0.05)。血清E2≤30pg/ml组的妇女牙周炎患牙牙周临床指标、GCFIL-6浓度与E2>30pg/ml组无显著差异(P>0.05)。结论:健康牙GCF中含有微量IL-6。牙周炎患牙GCF中IL-6的水平反映了牙周炎症的严重程度,可以尝试作为判断维族妇女牙周病变程度的一个指标。绝经早期患慢性牙周炎的维族妇女,血清E2水平与牙周炎患牙的病变程度及GCF中IL-6的水平无关。     

Serum antioxidant micronutrient levels in oral lichen planus

The aim of this study was to elucidate any association between oral lichen planus (OLP) and serum antioxidant micronutrients by a population-based case-control study. A total of 9536 subjects were examined, and 62 (58 reticular, 4 atrophic and erosive) diagnosed with OLP at referral facilities were compared with four controls per case (n=248) selected among disease-free subjects matched for age and sex. Serum levels of micronutrients (retinol, alpha-tocopherol, zeaxanthin/lutein and cryptoxanthin, lycopene, alpha-carotene and beta-carotene) were estimated by the high performance liquid chromatography (HPLC) method. Among cases, mean serum retinol level (2.820+/-0.849 micromol/l) was significantly higher compared with that of controls (2.562+/-0.735 micromol/l) (P<0.05). No significant differences were noted in carotenoid levels examined in this study, except for a lower level of lycopene found in atrophic/erosive OLP cases. The results of this study suggest that low serum retinol or carotenoid levels are not risk factors for occurrence of lichen planus, and any specific benefits of antioxidant micronutrients cannot be claimed for this inflammatory disorder.     

Elevated serum levels of the apoptosis related molecules TNF-α, Fas/Apo-1 and Bcl-2 in oral lichen planus

BACKGROUND: The serum circulatory levels of apoptosis related molecules measured in patients with oral lichen planus (OLP) and healthy individuals in order to investigate possible alterations associated with the clinical forms of OLP. METHODS: Serum levels of tumor necrosis factor (TNF)-alpha, soluble Fas (sFas) and Bcl-2 studied by enzyme-linked immunosorbent assay in whole blood samples in 13 OLP reticular, 13 OLP atrophic-erosive form patients and 26 healthy subjects. RESULTS: Significantly elevated levels of TNF-alpha and sFas detected in OLP patients as compared with controls. Serum concentrations of Bcl-2 although increased in 17/26 patients, they were not statistically significant. Reticular OLP exhibited slightly elevated TNF-alpha and significantly elevated Bcl-2 serum levels, compared with erosive OLP. CONCLUSIONS: These data suggest that a putative dysfunction in the Fas/FasL mediated apoptosis might be involved in the OLP pathogenesis. A downregulation of Bcl-2 serum levels in the atrophic-erosive OLP may be associated with promotion of the disease activity.     

The relationship between levels of salivary and serum interleukin-6 and oral lichen planus: A systematic review and meta-analysis

Background

The relationship between levels of salivary and serum interleukin (IL)-6 and oral lichen planus (OLP) is not understood fully. The authors conducted a systematic review and meta-analysis to compare levels of salivary and serum IL-6 among people with OLP and healthy control participants.

Serum cytokine levels in patients with oral mucous membrane disorders

Serum cytokine levels were examined in 18 oral squamous cell carcinoma (SCC), 26 lichen planus (OLP), 20 recurrent aphthous stomatitis (RAS), 8 herpetic gingivostomatitis (HGS), 16 pseudomembrane candidiasis (PMC) and 19 acute bacterial infection (ABI) cases. All SCC and most PMC patients possessed clear serum IL-3. No clear increase of IL-4 was observed in most cases though over 20 pg/ml were found in a few OLP, RAS and ABI. ABI exhibited the highest IL-6, and the cytokine level was lower in RAS, PMC, HGS and OLP in this order. Suppressed IL-6 activity was elevated with improvement of HGS lesion. TNF-alpha increased in 9 OLP, but the levels were below 100 pg/ml in all cases. Most SCC possessed higher GM-CSF activity than the controls. Increase of the cytokine corresponding with improvement of the oral lesion was seen in HGS, but not in OLP. From these results, each serum cytokine seems to reflect a characteristic pathophysiology of individual oral disorder.     

Oral and serum IL-6 levels in oral lichen planus patients

OBJECTIVE: The purpose of this study was to compare IL-6 levels in oral exfoliated mucosal cell samples and in serum in subjects with oral lichen planus versus controls.Study design Ten patients with ulcerative OLP, 10 with reticular OLP, and 10 control subjects were recruited at a University Oral Medicine Clinic. Using smear tissue culture brushes, oral samples were collected from lesional sites for OLP patients and from buccal mucosa for controls into vials with 300 muL PBS. After centrifugation, the supernatants were aspirated for cytokine ELISA assay and protein assay. Venous blood was processed to serum for ELISA assay. Oral IL-6 was expressed as both pg/mL and pg/mug protein, and serum IL-6 was expressed as pg/mL. RESULTS: The mean oral IL-6 levels were higher in the ulcerative OLP group (11.19 +/- 5.34 pg/mL) than in the reticular OLP (1.05 +/- 0.34 pg/mL) and control (0.52 +/- 0.29 pg/mL) groups. There were significant differences between ulcerative OLP and reticular OLP groups (P < .039), and between ulcerative OLP and control groups (P < .009). After the standardization of IL-6 concentration by protein, a significant difference in IL-6 concentration was shown only between the ulcerative OLP (0.0245 +/- 0.0121 pg/mug protein) and control (0.0023 +/- 0.0012 pg/mug protein) groups (P < .029). Similarly, the ulcerative OLP group showed a significantly higher serum IL-6 level than the control group (P < .021). CONCLUSION: Both oral and serum IL-6 levels were higher in patients with ulcerative OLP. An oral exfoliated cell technique may be a useful and sensitive method to measure IL-6 in patients with OLP as it provided results consistent with those found in peripheral blood.     

血清白细胞介素20在牙周炎及慢性阻塞性肺疾病中作用的初步探讨

目的初步探讨血清白细胞介素20（IL-20）及白细胞介素6（IL-6）、肿瘤坏死因子（TNF-α）在牙周炎及慢性阻塞性肺疾病（COPD）中的作用。方法选取151例患者,按牙周炎及COPD的严重程度分为四组,采用酶联免疫吸附法（ELISA）测定四组患者血清中IL-20、IL-6和TNF-α的浓度。结果中重度牙周炎伴COPD患者血清中IL-20、IL-6和TNF-α的水平显著高于对照人群,并且两种疾病并存时,血清IL-20水平较单独存在时高。结论血清中IL-20及IL-6、TNF-α水平的高表达可能与牙周炎及COPD的发病机理有关,加重两种疾病炎症反应过程。     

口腔扁平苔藓与NF-κB通路相关因子IL-8和RANTES的关系研究

目的探讨NF-κB信号通路相关细胞因子白细胞介素-8 (IL-8),受激活调节正常T细胞表达和分泌因子(RANTES)在口腔扁平苔藓(OLP)患者组和健康对照组中的表达,并分析IL-8、RANTES表达的相关性,探讨在口腔扁平苔藓发生发展过程中NF-κB信号传导通路的作用。方法选取30例OLP患者作为实验组,30例健康者为对照组,取其相应黏膜组织。应用RT-PCR法检测NF-κB相关因子IL-8、RANTES在OLP患者组与健康对照组中的表达,分析患者组与对照组的表达差异及二者表达相关性。结果 RT-PCR结果显示IL-8、RANTES在OLP两组中均有表达,但患者组的表达明显高于正常对照组(P<0.05)。OLP患者组中IL-8与RANTES的表达相关(P<0.05)。结论 OLP的发生发展可能与NF-κB引导的炎症通路及其介导的炎症因子IL-8、 RANTES相关,同时IL-8和RANTES在OLP的发病过程中可能具有协同致病作用。