C1q/TNF-related protein 1 promotes vasodilatory dysfunctions by increasing arginase 1 activity and uncoupling of endothelial nitric oxide synthase

Objective C1q/TNF-related protein(CTRP)1 was initiallyidentified as a paralog of adiponectin based on the similarity in C1q domain of these two proteins.Previously,we showed that CTRP1promotes the development of atherosclerosis by increasing endothelial adhesiveness.Here,we sought to investigate whether CTRP1 also influences vascular dilatory functions.

C1q/TNF-related protein 5 promotes atherogenesis by enhancing transcytosis and oxidative modification of low-density lipoprotein through increasing 12/15-lipoxygenase

Objective Increased transcytosis of low-density lipoprotein (LDL)across the endothelium and oxidation of LDL deposited within the subendothelial space are crucial early events in atherogenesis. C1q/TNF-related protein (CTRP) 5 is a novel secreted glycoprotein and its biological functions are largely undefined.

鲜红斑痣相关基因及激酶的研究进展

鲜红斑痣是一种体细胞基因突变疾病,这种突变可改变正常血管内皮细胞的功能,导致血管畸形。在大部分鲜红斑痣/Sturge-Weber综合征患者中存在鸟嘌呤核苷酸结合蛋白q多肽(GNAQ)基因体细胞突变位点,且突变与部分临床表现密切相关。推测GNAQ基因突变可作为早期鲜红斑痣的预测因子指导早期干预治疗。RAS p21蛋白激活因子1(RASA1)的体细胞“二次突变”与鲜红斑痣伴发综合征毛细血管-动静脉畸形的发病有关。基因突变引起下游通路中的促分裂原活化的蛋白激酶(MAPK)、磷脂酰肌醇-3-激酶(PI3K)等蛋白激酶活化,参与鲜红斑痣发生的不同阶段。深入研究鲜红斑痣相关GNAQ基因、RASA1基因和MAPK、PI3K等可为其早期诊断及分子治疗提供理论依据。