内皮素-1及其受体ET与药物性牙龈增生中的ET
Endothelin-1 and Its Receptors ET and ET in Drug-Induced Gingival Overgrowth.
作者信息
Tamilselvan S, Raju Surya Narayana, Loganathan D, Kamatchiammal S, Abraham Georgie, Suresh R
机构信息
Department of Periodontics, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Medical College and Research Institute, Deemed University, Porur, Chennai, Tamilnadu, India.
National Environmental Engineering Research Institute, Council of Scientific and Industrial Research, Taramani, Chennai, Tamilnadu, India.
出版信息
J Periodontol. 2007 Feb;78(2):290-295. doi: 10.1902/jop.2007.060172.
BACKGROUND
The purpose of this study was to study the expression of endothelin-1 (ET-1) and its receptors ET and ET in normal human gingiva and cyclosporin-induced gingival fibroblasts.
METHODS
Gingival samples were collected from eight normal healthy individuals, eight patients with periodontitis, and eight patients with cyclosporin A (CsA)-induced gingival overgrowth. Total RNA was extracted from tissue samples, and reverse transcriptase-polymerase chain reaction was performed for ET-1, ET , and ET . ET-1 protein was estimated from the tissues by enzyme-linked immunosorbent assay. The expression of ET-1 and its receptors was also examined in gingival fibroblast cells treated with CsA.
RESULTS
ET-1 mRNA expression was significantly higher in patients with CsA-induced gingival overgrowth (P <0.001) than in patients with periodontitis and the controls. ET mRNA was expressed more than the ET in all examined samples. In human gingival fibroblasts, ET-1 expression was increased with CsA incorporation compared to controls (P <0.001).
CONCLUSION
These results suggest that CsA can modulate the expression of ET-1 in gingival fibroblasts and CsA-induced gingival overgrowth.
背景
本研究旨在探讨内皮素 -1(ET -1)及其受体ET和ET在正常人牙龈组织以及环孢素诱导的牙龈成纤维细胞中的表达情况。
方法
收集8名正常健康个体、8名牙周炎患者以及8名环孢素A(CsA)诱导的牙龈增生患者的牙龈样本。从组织样本中提取总RNA,并对ET -1、ET和ET进行逆转录聚合酶链反应。通过酶联免疫吸附测定法从组织中估计ET -1蛋白。还用CsA处理牙龈成纤维细胞,检测ET -1及其受体的表达情况。
结果
CsA诱导的牙龈增生患者中ET -1 mRNA表达显著高于牙周炎患者和对照组(P <0.001)。在所有检测样本中,ET mRNA的表达均高于ET。在人牙龈成纤维细胞中,与对照组相比,加入CsA后ET -1表达增加(P <0.001)。
结论
这些结果表明,CsA可调节牙龈成纤维细胞中ET -1的表达以及CsA诱导的牙龈增生。