ABAD

更新于：2024-11-01

基本信息

别名

17-beta-estradiol 17-dehydrogenase、17b-HSD10、2-methyl-3-hydroxybutyryl-CoA dehydrogenase

+ [24]

简介

Mitochondrial dehydrogenase involved in pathways of fatty acid, branched-chain amino acid and steroid metabolism (PubMed:9553139, PubMed:10600649, PubMed:12917011, PubMed:20077426, PubMed:18996107, PubMed:19706438, PubMed:25925575, PubMed:26950678, PubMed:28888424). Acts as (S)-3-hydroxyacyl-CoA dehydrogenase in mitochondrial fatty acid beta-oxidation, a major degradation pathway of fatty acids. Catalyzes the third step in the beta-oxidation cycle, namely the reversible conversion of (S)-3-hydroxyacyl-CoA to 3-ketoacyl-CoA. Preferentially accepts straight medium- and short-chain acyl-CoA substrates with highest efficiency for (3S)-hydroxybutanoyl-CoA (PubMed:9553139, PubMed:10600649, PubMed:12917011, PubMed:25925575, PubMed:26950678). Acts as 3-hydroxy-2-methylbutyryl-CoA dehydrogenase in branched-chain amino acid catabolic pathway. Catalyzes the oxidation of 3-hydroxy-2-methylbutanoyl-CoA into 2-methyl-3-oxobutanoyl-CoA, a step in isoleucine degradation pathway (PubMed:20077426, PubMed:18996107, PubMed:19706438). Has hydroxysteroid dehydrogenase activity toward steroid hormones and bile acids. Catalyzes the oxidation of 3alpha-, 17beta-, 20beta- and 21-hydroxysteroids and 7alpha- and 7beta-hydroxy bile acids (PubMed:10600649, PubMed:12917011). Oxidizes allopregnanolone/brexanolone at the 3alpha-hydroxyl group, which is known to be critical for the activation of gamma-aminobutyric acid receptors (GABAARs) chloride channel (PubMed:19706438, PubMed:28888424). Has phospholipase C-like activity toward cardiolipin and its oxidized species. Likely oxidizes the 2'-hydroxyl in the head group of cardiolipin to form a ketone intermediate that undergoes nucleophilic attack by water and fragments into diacylglycerol, dihydroxyacetone and orthophosphate. Has higher affinity for cardiolipin with oxidized fatty acids and may degrade these species during the oxidative stress response to protect cells from apoptosis (PubMed:26338420). By interacting with intracellular amyloid-beta, it may contribute to the neuronal dysfunction associated with Alzheimer disease (AD) (PubMed:9338779). Essential for structural and functional integrity of mitochondria (PubMed:20077426). In addition to mitochondrial dehydrogenase activity, moonlights as a component of mitochondrial ribonuclease P, a complex that cleaves tRNA molecules in their 5'-ends (PubMed:18984158, PubMed:24549042, PubMed:25925575, PubMed:26950678, PubMed:28888424). Together with TRMT10C/MRPP1, forms a subcomplex of the mitochondrial ribonuclease P, named MRPP1-MRPP2 subcomplex, which displays functions that are independent of the ribonuclease P activity (PubMed:23042678, PubMed:29040705). The MRPP1-MRPP2 subcomplex catalyzes the formation of N(1)-methylguanine and N(1)-methyladenine at position 9 (m1G9 and m1A9, respectively) in tRNAs; HSD17B10/MRPP2 acting as a non-catalytic subunit (PubMed:23042678, PubMed:25925575, PubMed:28888424). The MRPP1-MRPP2 subcomplex also acts as a tRNA maturation platform: following 5'-end cleavage by the mitochondrial ribonuclease P complex, the MRPP1-MRPP2 subcomplex enhances the efficiency of 3'-processing catalyzed by ELAC2, retains the tRNA product after ELAC2 processing and presents the nascent tRNA to the mitochondrial CCA tRNA nucleotidyltransferase TRNT1 enzyme (PubMed:29040705). Associates with mitochondrial DNA complexes at the nucleoids to initiate RNA processing and ribosome assembly.

关联

100 项与 ABAD 相关的临床结果

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100 项与 ABAD 相关的转化医学

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0 项与 ABAD 相关的专利（医药）

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1,479

项与 ABAD 相关的文献（医药）

2025-01-01·Journal of Ethnopharmacology

Multi-omics and bioinformatics for the investigation of therapeutic mechanism of roucongrong pill against postmenopausal osteoporosis

Article

作者: Guo, Junpeng ; Li, Chenhao ; Su, Xin ; Jiang, Tao ; Meng, Qianting ; Hu, Wanli ; Guo, Jiurui ; Zhu, Xiaojuan ; Du, Xingchen ; Song, Wu ; Li, Yufen

ETHNOPHARMACOLOGICAL RELEVANCEThe Roucongrong Pill (RCRP), originating from the historical General Medical Collection of Royal Benevolence, is frequently used to treat postmenopausal osteoporosis (PMOP). Despite its prevalent application, the specific anti-osteoporotic mechanisms of RCRP remain to be elucidated.AIM OF THE STUDYThis study aims to elucidate the therapeutic mechanism of RCRP in the context of ovariectomy (OVX)-induced PMOP in rats. By employing an integrative approach, the research combines medicinal chemistry, gut microbiota (GM) profiling, metabolomics, MetOrigin traceability, network pharmacology, molecular docking, and molecular dynamics simulations to deliver a comprehensive analysis.MATERIALS AND METHODSSprague-Dawley (SD) rats underwent bilateral OVX to establish a PMOP model. The therapeutic efficacy of RCRP was evaluated through bone metrics (BMD, bone strength, BV/TV, Tb.Sp), hematoxylin and eosin (H&E) histological assessment, and bone metabolism markers (OPG, BALP, TRACP-5b, β-CTX, RANKL). Fecal metabolomics and 16S rDNA sequencing were employed to assess the influence of RCRP on GM and metabolite profiles. Furthermore, MetOrigin facilitated the traceability analysis of relevant metabolites. Molecular docking identified potential RCRP compounds with anti-PMOP activity, while their stability and protein interactions were assessed through molecular dynamics simulations. Network pharmacology further confirms the targets of action.RESULTSRCRP alleviated PMOP in rats, enhancing bone strength, cortical and trabecular BMD, BV/TV, and serum OPG levels, while reducing Tb.Sp, serum BALP, TRACP-5b, β-CTX, and RANKL concentrations. A total of twenty-six distinct metabolites were identified, of which ten-tribufos, sulfoacetic acid, betamethasone dipropionate, 9-oxooctadeca-10,12,15-trienoic acid, menatetrenone, piperlongumine, maltopentaose, enol-phenylpyruvate, catechol, pentaacetate, and (+)-2-methylpropanoic acid-exhibited correlations with six GM species: Turicibacter, Roseburia, Colidextribacter, Helicobacter, Odoribacter, and Lachnoclostridium, as determined by Spearman's correlation analysis. Notably, MetOrigin revealed the microbial metabolism of taurine and hypotaurine, along with host-specific steroid hormone synthesis. Computational docking studies demonstrated robust interactions between five RCRP-derived steroids (hydroxyecdysone, corticosterone, trilostane, 5α-androstan-3,6,17-trione, and cortisol) and key enzymes (estradiol 17α-dehydrogenase and UDP-glucuronosyltransferase), suggesting a potential enhancement of therapeutic efficacy against PMOP. Furthermore, molecular dynamics simulations indicated stable interactions between hydroxyecdysone and two proteins, with binding free energies of -67.427 kJ/mol and -156.948 kJ/mol, respectively. Through network pharmacology and molecular docking approaches, potential targets of these metabolites were identified, including estrogen receptors ESR1 and ESR2, dual specificity phosphatase 6 (DUSP6), sex hormone-binding globulin (SHBG), prostaglandin E receptor 4 (PTGER4), cannabinoid receptor 2 (CNR2), cathepsin K (CTSK), and androgen receptor (AR).CONCLUSIONSRCRP effectively mitigates OVX-induced bone loss in PMOP rats by modulating GM and associated metabolites, along with their potential targets and key metabolic pathways, including taurine and hypotaurine metabolism, as well as steroid hormone biosynthesis. These findings offer new insights into the therapeutic mechanisms by which RCRP may alleviate PMOP.

2024-12-01·International Journal of Pharmaceutics

Dihydroquercetin nanoparticles nasal gel is a promising formulation for amelioration of Alzheimer’s disease

Article

作者: Matar, Noura A. ; Abou-Taleb, Basant A ; Masoud, Inas M ; Hussein, Hoda S ; El-Hadidy, Wessam F ; Matar, Noura A ; Masoud, Inas M. ; Hussein, Hoda S. ; El-Hadidy, Wessam F. ; Abou-Taleb, Basant A.

Dihydroquercetin is a natural flavonoid with anti-inflammatory, antioxidant, and neuroprotective activities. Dihydroquercetin exhibits a great neuroprotector promise in Alzheimer's disorder via preventing the aggregation of amyloid-beta-peptide-Aβ(1-42). The goal of the study was to create dihydroquercetin-loaded-chitosan nanoparticles (DHQ-CS NPs) loaded to a mucoadhesive, thermosensitive in-situ gel for direct nasal administration to cure Alzheimer's disorder. Loading drug in chitosan nanoparticles and incorporation into thermosensitive gel enhanced residence time and reduced mucociliary-clearance. Different in-vitro-physicochemical-characteristics of gels and nanoparticles-characterization were used to evaluate the formulations. The therapeutic effectiveness of DHQ-CS NPs gel was evaluated behaviorally, biochemically and histopathologically in Alzheimer's-rat-model compared to intranasal DHQ gel. The small particles-size was obtained = 235.3 nm of DHQ-CS NPs. The DHQ-CS NPs gel demonstrated a greater release rate compared to the raw DHQ gel. Additionally, the nasal-administration of the DHQ-CS NPs gel showed better In-vivo results compared to DHQ gel, through improvement of memory and learning deficits and also the exploratory behavior and new object memory in streptozotocin induced-Alzheimer rats. Biochemically, the intranasal DHQ-CS NPs gel, showed reduced both Aβ-protein formation and tau protein hyperphosphorylation, inhibition of acetylcholine esterase activity and oxidative stress in the brain with increase of total antioxidants in the brain and serum, compared to DHQ gel. Histopathologically, the DHQ-CS NPs nasal gel produced improvement in the hippocampal and cerebral cortex structures, being comparable to the normal group. Consequently, the intranasal DHQ-CS NPs loaded in-situ gel seems to be a promising therapeutic formulation for Alzheimer's disease medication.

2024-09-01·Phytotherapy Research

Astragaloside IV protects renal tubular epithelial cells against oxidative stress‐induced injury by upregulating CPT1A‐mediated HSD17B10 lysine succinylation in diabetic kidney disease

Article

作者: Zuo, Guoqing ; Wang, Jianwei ; Yang, Congwen ; Li, Xuezhi ; Yao, Ling ; Li, Qiurui ; Wang, Meng ; Huang, Xuekuan ; Cao, Wenfu ; Yuan, Su ; Wang, Shang ; Zuo, Ling ; Hai, Yang

AbstractTubular injury and oxidative stress are involved in the pathogenesis of diabetic kidney disease (DKD). Astragaloside IV (ASIV) is a natural antioxidant. The effects and underlying molecular mechanisms of ASIV on DKD have not been elucidated. The db/db mice and high‐glucose‐stimulated HK2 cells were used to evaluate the beneficial effects of ASIV in vivo and in vitro. Succinylated proteomics was used to identify novel mechanisms of ASIV against DKD and experimentally further validated. ASIV alleviated renal dysfunction and proteinuria, downregulated fasting blood glucose, and upregulated insulin sensitivity in db/db mice. Meanwhile, ASIV alleviated tubular injury, oxidative stress, and mitochondrial dysfunction in vivo and in vitro. Mechanistically, ASIV reversed downregulated 17beta‐hydroxysteroid dehydrogenase type 10 (HSD17B10) lysine succinylation by restoring carnitine palmitoyl‐transferase1alpha (Cpt1a or CPT1A) activity in vivo and in vitro. Molecular docking and cell thermal shift assay revealed that ASIV may bind to CPT1A. Molecular dynamics simulations demonstrated K99 succinylation of HSD17B10 maintained mitochondrial RNA ribonuclease P (RNase P) stability. The K99R mutation of HSD17B10 induced oxidative stress and disrupted its binding to CPT1A or mitochondrial ribonuclease P protein 1 (MRPP1). Importantly, ASIV restored the interaction between HSD17B10 and MRPP1 in vivo and in vitro. We also demonstrated that ASIV reversed high‐glucose‐induced impaired RNase P activity in HK2 cells, which was suppressed upon K99R mutation of HSD17B10. These findings suggest that ASIV ameliorates oxidative stress‐associated proximal tubular injury by upregulating CPT1A‐mediated K99 succinylation of HSD17B10 to maintain RNase P activity.

项与 ABAD 相关的新闻（医药）

2024-07-10

·CPHI制药在线

天然活性成分治疗阿尔茨海默病研究进展（下篇）

关注并星标CPHI制药在线随着现代化分离鉴定技术的不断优化，从天然产物中筛选发现高效、高选择性、低毒性的靶向抗AD活性成分成为抗AD药物研发的重要途径之一。上篇介绍了多糖类、皂苷类、酚类和黄酮类等天然成分的抗AD作用，本文继续介绍醌类、苯丙素类、萜类、生物碱类和内酯类等天然成分的抗AD作用。相关阅读：《天然活性成分治疗阿尔茨海默病研究进展（上篇）》 5 醌类大黄酸是大黄中的蒽醌类成分，可通过上调SIRT1/过氧化物酶体增殖物激活受体γ 共激活因子-1α（PGC-1α）途径改善线粒体功能，缓解氧化应激，降低AD小鼠脑内Aβ病理和神经炎症。番泻叶苷A 能够减轻AD中的细胞凋亡、铁死亡、氧化应激和炎症，其作用机制与抑制肿瘤坏死因子受体相关因子6（TRAF6）/NF-κB轴相关。紫草素是从紫草中提取的萘醌类化合物，研究发现紫草素可能通过抑制NF-κB/MAPKs信号通路，减轻D-半乳糖（D-gal）诱导的衰老小鼠模型的空间学习记忆障碍、氧化应激、炎症和神经元损伤。 6 苯丙素类毛蕊花糖苷源自肉苁蓉，能够通过阻断NF-κB通路抑制神经炎症，改善能量代谢，减少Aβ 沉积和Tau过磷酸化，抑制ERS减少细胞凋亡等途径发挥神经保护作用。反式桂皮醛大量存在于肉桂等植物体内，可降低AD小鼠脑内p-Tau水平，抑制神经炎症，改善NMDAR介导的突触功能障碍。厚朴酚是厚朴的主要活性成分，能够通过调节PI3K/Akt和NF-κB信号通路抑制神经炎症和突触功能障碍，并促进神经元和小胶质细胞自噬，抑制β-和γ-分泌酶活性，增强Aβ 降解酶活性，从而抑制Aβ 沉积和细胞凋亡，改善AD小鼠记忆障碍。连翘酯苷A提取自连翘的干燥果实，研究发现连翘酯苷A可显著增强AD小鼠脑内多巴胺能信号，抑制铁沉积和脂质过氧化，通过靶向激活Nrf2/GPX4轴调节铁死亡介导的神经炎症，发挥抗AD 特性。 7 萜类芍药苷普遍存在于芍药科植物中，芍药苷可通过抑制 p53介导铁死亡增强AD小鼠的认知和行为能力。京尼平苷酸能够激活PI3K/Akt/生长相关蛋白43（GAP43）调节轴，缓解AD病程中Aβ 积累、神经元凋亡、炎症和轴突损伤。梓醇是地黄的主要活性成分之一，能够减轻Aβ沉积和神经炎症，改善AD小鼠的认知能力。体外研究发现，梓醇可以通过上调去整合素金属蛋白酶（ADAM）10 表达减少Aβ 生成，并能减轻BBB 破坏，促进可溶性Aβ跨 BBB外排清除。疟疾药物青蒿素可通过降低病理蛋白的表达、抗氧化、抗炎、抗凋亡等途径改善AD小鼠的认知能力。广藿香醇可通过调节APP的加工抑制Aβ斑块沉积，减轻Tau蛋白过磷酸化、神经炎症和肠道菌群失调，改善AD小鼠焦虑相关行为缺陷和认知障碍。此外，广藿香醇还可作为选择性雌激素受体β（ERβ）激动剂，促进MG 吞噬Aβ，改善突触完整性，有效减轻雌性APP/PS1小鼠的学习记忆障碍。丹参酮ⅡA被广泛应用于治疗心血管疾病。研究表明，丹参酮ⅡA在体内和体外均可发挥较强的抗AD 作用，包括促进 Aβ转运，降低 Tau 磷酸化水平，逆转胆碱能系统功能障碍，抑制氧化应激、炎症反应及凋亡等。雷公藤红素提取于雷公藤的根皮部，可激活转录因子 EB（TFEB）介导的自噬，促进磷酸化Tau 聚集体的降解，明显改善记忆缺陷。黄芪甲苷通过增加PPARγ表达，抑制神经炎症并减少APP裂解生成Aβ，改善大鼠认知学习能力。 8 生物碱类生物碱是主要存在于植物中的一种含氮碱性化合物及少量具有明显生物活性但不含碱性的含氮有机化合物。石杉碱甲是生物碱类抗AD新药，是一种高效高选择性的中枢AChE抑制剂。临床前试验证实石杉碱甲对一系列认知障碍模型动物的学习和记忆均有改善作用。石杉碱甲除了抑制AChE 活性外，还可通过调节APP加工及减少海马体中Aβ累积等途径对神经产生保护作用。同时还可降低淀粉样蛋白结合醇脱氢酶（ABAD）水平且进一步降低Aβ 和ABAD复合物水平从而缓解APP/PS1小鼠的线粒体功能障碍。黄连素可以抑制细胞外淀粉样斑块及细胞内神经纤维缠结，还可以促进受损神经的轴突延伸和轴突再生，用于治疗神经退行性疾病。紫堇总生物碱可以升高AD模型大鼠的SOD、CAT 水平，降低ROS、MDA、IL-1β、TNF- α水平，降低 Aβ、NF-κB 蛋白的表达，增加MAP2蛋白的表达。金钗石斛总生物碱可通过增加Aβ 的清除、激活自噬活性、上调Klotho，从而对SAMP8小鼠与衰老相关的认知功能缺损、神经元衰老、损伤和丢失具有保护作用。还可通过增加海马和皮层中 BDNF、GDNF和CNTF的表达减少神经元凋亡及突触丢失，改善Aβ诱导的小鼠空间学习和记忆障碍。吴茱萸碱可减少AD小鼠脑内Aβ42的沉积，增加血清中Aβ42的水平，但对 Aβ40无显著影响，此外吴茱萸碱还能抑制氧化应激，在AD小鼠中枢胆碱能系统中，吴茱萸碱可显著升高血清中ACh和胆碱乙酰转移酶的水平，降低血清、下丘脑和大脑中乙酰胆碱酯酶的水平。苦参碱和氧化苦参碱均是从苦参中提取的生物碱，一定条件下可相互转化。研究发现，苦参碱可抑制Aβ 聚集，阻断RAGE的配体结合位点减弱Aβ刺激下RAGE通路的激活，减轻 Aβ诱导的神经毒性和炎症反应。同样的，氧化苦参碱也具有抗神经炎症的作用，其抗炎活性与其调控MAPKs和NF-κB 信号通路有关。异钩藤碱通过抑制c-Jun氨基末端激酶（JNK）信号通路的激活，减少Aβ 生成和沉积、Tau过度磷酸化和神经炎症，从而改善AD 小鼠的认知障碍。小檗碱从黄连中分离而得，研究发现小檗碱能够通过激活Nrf2并增加下游信号级联反应，减少异常铁积累和脂质过氧化产物抑制铁死亡，减轻AD小鼠脑内Aβ 斑块、Tau蛋白过度磷酸化和神经元丢失。 9 内酯类研究表明1，6-O，O-二乙酰旋覆花内酯可以减轻LPS诱导的BV-2小胶质细胞的神经炎症反应，减轻6月龄5x FAD小鼠的认知障碍、还能显著降低AD小鼠脑组织中淀粉样斑块的积累、Aβ的表达、Tau 蛋白的磷酸化和BACE1 的表达。双氢青蒿素（DHA）可改善 APP/PS1 小鼠记忆和认知功能障碍，减少β淀粉样斑块沉积，降低Aβ40和Aβ42水平，改善APP/PS1 小鼠大脑神经元过度凋亡。雷公藤甲素能改善Aβ注射小鼠的空间学习及记忆，降低Aβ的表达，此外，雷公藤甲素还能降低Aβ42注射小鼠炎症细胞因子的表达，降低氧化损伤。银杏内酯B能改善SAMP8小鼠的认知功能障碍，与氧化应激、炎症和核转录因子E2相关因子2/谷胱甘肽过氧化物酶4（GPX4）介导的铁死亡途径的减弱有关。藁本内酯是当归挥发油的主要成分，具有抑制小胶质细胞的激活和促炎细胞因子产生的作用，对神经炎症具有一定的治疗作用。穿心莲内酯能够调节AD患者血清的IL-1β、IL-6及TNF-α水平，减轻炎性反应。白果内酯和银杏内酯B 均源自银杏叶中，白果内酯能够抑制信号转导及转录激活因子3（STAT3）依赖的炎症细胞因子的释放，并促进Aβ 降解酶的表达，以挽救神经元缺陷。银杏内酯B通过自噬降解途径抑制NLRP3炎症小体的激活，减轻AD小鼠神经炎症和认知障碍。天然产物类型多样，药理活性广泛，一直以来是新药研发的重要源头。但是，目前在天然产物成分治疗AD 领域仍存在一些不足之处，如天然产物中化学成分的复杂性使得其活性成分和作用机制难以准确确定，研究和开发过程相对较为困难；其次，中药制剂的质量和含量难以保证，可能导致不同批次之间的差异，影响临床疗效的稳定性；另外，尽管许多中药被传统上用于治疗认知障碍，但其科学验证和临床疗效仍需要更多严格的随机对照研究支持，以及药物相互作用，一些天然产物成分可能与化学药物相互作用，影响药物代谢和疗效，需要更多关于安全性的研究，一些天然抗AD活性成分存在生物利用度低、难以透过血脑屏障等问题，需进一步结构修饰和优化，或采用剂型改造和联合用药等方法，提高对靶点的选择性与抗AD疗效等。参考资料 [1]黄丹蓉,程亚敏,冯紫涵,等.基于靶点机制的抗阿尔茨海默病天然活性成分研究进展[J].天然产物研究与开发,2023,35(10):1808-1819. [2]曹珊,陈智慧,秦静琪,等.中药及其有效成分治疗阿尔茨海默病研究进展[J].中国实验方剂学杂志,2024,30(10):258-268. [3]杜正彩,胡润华,李瑞林,等.治疗阿尔茨海默病中药化学成分及机制的研究概况[J].中国实验方剂学杂志,2024,30(05):236-245. 作者简介：小米虫，药品质量研究工作者，长期致力于药品质量研究及药品分析方法验证工作，现就职于国内某大型药物研发公司，从事药品检验分析及分析方法验证。 END 【智药研习社抗体系列直播预告】来源：CPHI制药在线声明：本文仅代表作者观点，并不代表制药在线立场。本网站内容仅出于传递更多信息之目的。如需转载，请务必注明文章来源和作者。投稿邮箱：Kelly.Xiao@imsinoexpo.com ▼更多制药资讯，请关注CPHI制药在线▼ 点击阅读原文，进入智药研习社~

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