在AG4OX SVF脂肪细胞中,FAHFA生物合成增加,并且对氟膦酸盐抑制剂敏感。a - d, WT和AG4OX SVF脂肪细胞用0.1% DMSO (vehicle (Veh))孵育9- pahsa (a), 9- pohsa (b), 9- oahsa (c)和9- c17: 1hsa (d)的生物合成,增加9- hsa (a - c)或C17:1和9- hsa的浓度(每个25 μ M) (d)。n =每个条件下6孔,每个基因型从9只小鼠收集细胞;均值±s.e.m。*与WT相比P < 0.003,相同处理(对Holm-Sidak多重比较进行t检验校正)。#P < 0.05, ###P < 0.0001与对照相比,基因型相同,@P < 0.05, @@P < 0.0001与WT相比,处理相同(双向方差分析(ANOVA))。ND,没有检测到。e, 3T3-L1脂肪细胞9-C17:1HSA生物合成与指定浓度的MAFP或0.1% DMSO (Veh)预孵育1 h,然后与C17:1和9-HSA(各10µM)或0.1% DMSO (Veh)共孵育2 h。除mafa6.75µM组n = 3外,n = 4孔;均值±s.e.m。与单独使用C17:1和9-HSA相比,*P < 0.05, **P < 0.0001(单向方差分析)。 f, Biosynthesis of 9-PAHSA (left) and 9-OAHSA (right) in WT and AG4OX SVF adipocytes pre-incubated with MAFP or 0.1% DMSO for 1 h, and then co-incubated with 9-HSA (10 µM) or 0.1% DMSO (Veh) for 2 h. n = 6 wells per condition; mean ± s.e.m. *P < 0.003 versus WT, same treatment (t-test correcting for Holm–Sidak multiple comparisons). #P < 0.05, ##P < 0.0001 versus Veh, @P < 0.0001 versus 9-HSA alone, same genotype (two-way ANOVA). g, Structure of FP-alkyne (top) and schematic diagram of activity-based proteomics (bottom). Created with BioRender.com. h, ATGL protein levels in AG4OX SQ WAT, normalized to total protein between 37–25 kDa on western blot. n = 8 mice, mean ± s.e.m. *P < 0.0012 versus WT (t-test, two-tailed). Similar results were obtained in at least two independent experiments. Credit:自然(2022)。DOI: 10.1038 / s41586 - 022 - 04787 - x
世界卫生组织(World Health Organization)的数据显示,全球约有4.22亿人患有糖尿病,每年有150万人直接死于糖尿病。1型糖尿病是一种慢性疾病,患者胰腺中产生胰岛素的细胞已经受损,不再产生胰岛素;当身体对胰岛素产生抵抗或不敏感时,就会发生2型糖尿病。这两种类型的疾病都会导致血糖水平升高,如果不加以治疗,久而久之会对心脏、血管、眼睛、肾脏和神经造成严重损害。挽救生命的药物和设备已经为糖尿病患者开发出来了,但许多人仍在与血糖控制不良作斗争,这使他们面临并发症的高风险。