Ahn Mi Young, Yoon Hyung Joo, Hwang Jae Sam, Jin Jang Mi, Park Kun-Koo
Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration (RDA), 166 Nongsaengmyung-Ro, Iseo-Myun, Wanju-Gun, 55365 Korea.
Korean Basic Science Institute, Ochang, 28119 Korea.
Toxicol Res. 2020 Oct 26;37(1):85-98. doi: 10.1007/s43188-020-00065-y. eCollection 2021 Jan.
Glycosaminoglycans (GAGs) have been used to diminish the deleterious effects associated with aging by preventing the destruction of cartilage, bone, discs, and skin. The objective of this study was to evaluate the anti-aging effect of a newly prepared GAG derived from bumblebee () queen (BTQG, 10 mg/kg). (Gb, cricket) GAG (GbG, 10 mg/kg) or glucosamine sulfate (GS) was used as a positive control. N-glycans derived from BTQG contained hexose polymers including HexHexNAcPen, Hex, and HexHexNAcdHex as the primary components. The GAGs were intraperitoneally administered to 14-month-old aged rats for 1 month. BTQG reduced the serum levels of free fatty acid, alkaline phosphatase (ALP), glutamate pyruvate transaminase (GPT), creatinine, and blood urea nitrogen (BUN), showing hepato-and renal-protective effects with anti-lipidemic activities comparable to GS. The changes of gene expression profile of liver tissue by cDNA microarray showed the simultaneous upregulation of 36 genes in the BTQG-treated rat group compared to the control group, including secretogranin II (Scg2), Activator (AP)-1-regulated protein-related reactive oxygen species (ROS) DNA damage repair, metallothionein 1a, and alpha-2 macroglobulin. The BTQG-treated group also showed 417 downregulated genes, including vimentin, moesin, and mitochondrial carbonic anhydrase. Insect glycosaminoglycan from the bumblebee (. ) queen may help decelerate the aging stage by ameliorating the aging effects on circulation, and liver and kidney function.
糖胺聚糖(GAGs)已被用于通过防止软骨、骨骼、椎间盘和皮肤的破坏来减轻与衰老相关的有害影响。本研究的目的是评估一种新制备的源自大黄蜂蜂王的GAG(BTQG,10mg/kg)的抗衰老作用。将蟋蟀GAG(GbG,10mg/kg)或硫酸氨基葡萄糖(GS)用作阳性对照。源自BTQG的N-聚糖包含己糖聚合物,其中HexHexNAcPen、Hex和HexHexNAcdHex为主要成分。将GAGs腹腔注射给14月龄的老年大鼠,持续1个月。BTQG降低了血清中游离脂肪酸、碱性磷酸酶(ALP)、谷丙转氨酶(GPT)、肌酐和血尿素氮(BUN)的水平,显示出肝肾保护作用以及与GS相当的抗血脂活性。与对照组相比,cDNA微阵列检测显示BTQG处理的大鼠组肝组织基因表达谱有36个基因同时上调,包括分泌粒蛋白II(Scg2)、激活蛋白(AP)-1调节的蛋白相关活性氧(ROS)DNA损伤修复、金属硫蛋白1a和α-2巨球蛋白。BTQG处理组还显示有417个基因下调,包括波形蛋白、膜突蛋白和线粒体碳酸酐酶。来自大黄蜂蜂王的昆虫糖胺聚糖可能通过改善对循环以及肝肾功能的衰老影响来帮助延缓衰老阶段。