Balanescu Paul, Balanescu Eugenia, Baicus Cristian, Balanescu Anca
Internal Medicine Chair, University of Medicine and Pharmacy Carol Davila, 020021 Bucharest, Romania.
Clinical Immunology Laboratory CDPC, Colentina Clinical Hospital, 020125 Bucharest, Romania.
J Pers Med. 2021 May 2;11(5):368. doi: 10.3390/jpm11050368.
Systemic sclerosis (Ssc) is an autoimmune disease with incomplete known physiopathology. There is a high number of candidate proteomic biomarkers for Ssc that have not yet been confirmed on independent Ssc cohorts. The aim of the study was to confirm circulating S100A6, calumenin, and cytohesin 2 as biomarkers for Ssc.
53 Ssc patients and 26 age- and gender-matched controls were included. Serum S100A6, calumenin, and cytohesin 2 were evaluated with commercial ELISA kits. Associations between serum expression and clinical Ssc characteristics were evaluated.
Serum calumenin, S100A6, and cytohesin 2 were higher in Ssc patients compared to controls. Calumenin associated with extensive cutaneous fibrosis, frequency of Raynaud phenomenon, and low complement level, and had a tendency to be higher in Ssc patients with pulmonary fibrosis. S100A6 correlated with the number of active digital ulcers. Serum cytohesin 2 levels were higher in patients with teleangiectasia and associated with pulmonary artery pressure.
Serum calumenin, S100A6, and cytohesin 2 were confirmed as biomarkers on an independent group of Ssc patients. Calumenin had the best predictive capacity for cutaneous Ssc manifestations. Future studies are needed to evaluate the prognostic value of these biomarkers and evaluate them as possible therapeutic targets.
系统性硬化症(Ssc)是一种自身免疫性疾病,其生理病理学尚不完全清楚。有大量系统性硬化症的候选蛋白质组学生物标志物,但尚未在独立的系统性硬化症队列中得到证实。本研究的目的是确认循环中的S100A6、钙网蛋白和细胞鸟苷酸交换因子2(cytohesin 2)作为系统性硬化症的生物标志物。
纳入53例系统性硬化症患者和26例年龄及性别匹配的对照。使用商用酶联免疫吸附测定(ELISA)试剂盒评估血清中的S100A6、钙网蛋白和细胞鸟苷酸交换因子2。评估血清表达与系统性硬化症临床特征之间的关联。
与对照组相比,系统性硬化症患者血清中的钙网蛋白、S100A6和细胞鸟苷酸交换因子2水平更高。钙网蛋白与广泛的皮肤纤维化、雷诺现象的发生率和低补体水平相关,并且在患有肺纤维化的系统性硬化症患者中往往更高。S100A6与活动性指端溃疡的数量相关。患有毛细血管扩张的患者血清细胞鸟苷酸交换因子2水平更高,且与肺动脉压相关。
血清钙网蛋白、S100A6和细胞鸟苷酸交换因子2在一组独立的系统性硬化症患者中被确认为生物标志物。钙网蛋白对皮肤系统性硬化症表现具有最佳预测能力。未来需要进行研究以评估这些生物标志物的预后价值,并将它们作为可能的治疗靶点进行评估。