Pub Date : 2024-10-01DOI: 10.1016/j.apsb.2024.07.026
Xiabing Huang , Jianping Ye
{"title":"Inhibition of liver cholesterol synthesis by a diet-induced gut hormone","authors":"Xiabing Huang , Jianping Ye","doi":"10.1016/j.apsb.2024.07.026","DOIUrl":"10.1016/j.apsb.2024.07.026","url":null,"abstract":"","PeriodicalId":6906,"journal":{"name":"Acta Pharmaceutica Sinica. B","volume":"14 10","pages":"Pages 4625-4627"},"PeriodicalIF":14.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.apsb.2024.07.022
Jing Zhang , Qiong Wu , Yifei Xie , Feng Li , Huifang Wei , Yanan Jiang , Yan Qiao , Yinhua Li , Yanan Sun , Han Huang , Mengmeng Ge , Dengyun Zhao , Zigang Dong , Kangdong Liu
Esophageal squamous cell carcinoma (ESCC), a malignancy of the digestive system, is highly prevalent and the primary cause of cancer-related deaths worldwide due to the lack of early diagnostic biomarkers and effective therapeutic targets. Dysregulated ribonucleotide reductase (RNR) expression has been confirmed to be causally linked to tumorigenesis. This study demonstrated that ribonucleotide reductase small subunit M2 (RRM2) is significantly upregulated in ESCC tissue and that its expression is negatively correlated with clinical outcomes. Mechanistically, HuR promotes RRM2 mRNA stabilization by binding to the adenine/uridine (AU)-rich elements (AREs) within the 3′UTR, resulting in persistent overexpression of RRM2. Furthermore, bifonazole is identified as an inhibitor of HuR via computational screening and molecular docking analysis. Bifonazole disrupts HuR-ARE interactions by competitively binding to HuR at F65, R97, I103, and R153 residues, resulting in reduced RRM2 expression. Furthermore, bifonazole exhibited antitumor effects on ESCC patient-derived xenograft (PDX) models by decreasing RRM2 expression and the dNTP pool. In summary, this study reveals the interaction network among HuR, RRM2, and bifonazole and demonstrated that bifonazole is a potential therapeutic compound for ESCC through inhibition of the HuR/RRM2 axis.
食管鳞状细胞癌(ESCC)是一种消化系统恶性肿瘤,由于缺乏早期诊断生物标志物和有效的治疗靶点,其发病率很高,是全球癌症相关死亡的主要原因。核糖核苷酸还原酶(RNR)表达失调已被证实与肿瘤发生有因果关系。本研究表明,核糖核苷酸还原酶小亚基M2(RRM2)在ESCC组织中显著上调,其表达与临床预后呈负相关。从机理上讲,HuR通过与3′UTR内富含腺嘌呤/尿苷元素(AU)结合促进mRNA稳定,从而导致RRM2持续过表达。此外,通过计算筛选和分子对接分析,确定联苯苄唑是 HuR 的抑制剂。联苯苄唑通过在 F65、R97、I103 和 R153 残基与 HuR 竞争性结合,破坏了 HuR 与ARE 的相互作用,导致 RRM2 表达量减少。此外,联苯苄唑通过降低 RRM2 的表达和 dNTP 池,对 ESCC 患者衍生异种移植(PDX)模型产生抗肿瘤作用。总之,本研究揭示了 HuR、RRM2 和联苯苄唑之间的相互作用网络,并证明联苯苄唑是一种通过抑制 HuR/RRM2 轴治疗 ESCC 的潜在化合物。
{"title":"Ribonucleotide reductase small subunit M2 promotes the proliferation of esophageal squamous cell carcinoma cells via HuR-mediated mRNA stabilization","authors":"Jing Zhang , Qiong Wu , Yifei Xie , Feng Li , Huifang Wei , Yanan Jiang , Yan Qiao , Yinhua Li , Yanan Sun , Han Huang , Mengmeng Ge , Dengyun Zhao , Zigang Dong , Kangdong Liu","doi":"10.1016/j.apsb.2024.07.022","DOIUrl":"10.1016/j.apsb.2024.07.022","url":null,"abstract":"<div><div>Esophageal squamous cell carcinoma (ESCC), a malignancy of the digestive system, is highly prevalent and the primary cause of cancer-related deaths worldwide due to the lack of early diagnostic biomarkers and effective therapeutic targets. Dysregulated ribonucleotide reductase (RNR) expression has been confirmed to be causally linked to tumorigenesis. This study demonstrated that ribonucleotide reductase small subunit M2 (RRM2) is significantly upregulated in ESCC tissue and that its expression is negatively correlated with clinical outcomes. Mechanistically, HuR promotes <em>RRM2</em> mRNA stabilization by binding to the adenine/uridine (AU)-rich elements (AREs) within the 3′UTR, resulting in persistent overexpression of RRM2. Furthermore, bifonazole is identified as an inhibitor of HuR <em>via</em> computational screening and molecular docking analysis. Bifonazole disrupts HuR-ARE interactions by competitively binding to HuR at F65, R97, I103, and R153 residues, resulting in reduced RRM2 expression. Furthermore, bifonazole exhibited antitumor effects on ESCC patient-derived xenograft (PDX) models by decreasing RRM2 expression and the dNTP pool. In summary, this study reveals the interaction network among HuR, RRM2, and bifonazole and demonstrated that bifonazole is a potential therapeutic compound for ESCC through inhibition of the HuR/RRM2 axis.</div></div>","PeriodicalId":6906,"journal":{"name":"Acta Pharmaceutica Sinica. B","volume":"14 10","pages":"Pages 4329-4344"},"PeriodicalIF":14.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141945626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.apsb.2024.08.014
Jiahui Zou , Xuyang Xing , Chao Teng , Qingling Zhao , Wei He , Xuri Wu , Yuanzheng Xia
Multidrug resistance (MDR), the major mechanism by which various cancers develop specific resistance to therapeutic agents, has set up enormous obstacles to many forms of tumor chemotherapy. Traditional cocktail therapy administration, based on the combination of multiple drugs for anti-MDR chemotherapy, often suffers from inconsistent in vivo pharmacokinetic behaviors that cannot act synchronously on the lesions, leading to limited pharmacodynamic outcomes. Despite the emergence of nanomedicines, which has improved chemotherapeutic drugs’ bioavailability and therapeutic effect on clinical application, these monotherapy-based nano-formulations still show poor progression in overcoming MDR. Herein, a “one stone and three birds” nanococktail integrated by a cocrystal@protein-anchoring strategy was purposed for triple-payload delivery, which paclitaxel-disulfiram cocrystal-like nanorods (NRs) were anchored with the basic protein drug Cytochrome c (Cyt C), followed by hyaluronic-acid modification. In particular, NRs were utilized as carrier-like particles to synchronously deliver biomacromolecule Cyt C into tumor cells and then promote cell apoptosis. Of note, on A549/Taxol drug-resistant tumor-bearing mice, the system with extraordinarily high encapsulation efficiency demonstrated prolonged in vivo circulation and increased tumor-targeting accumulation, significantly reversing tumor drug resistance and improving therapeutic efficacy. Our mechanistic study indicated that the system induced the apoptosis of Taxol-resistant tumor cells through the signal axis P-glycoprotein/Cyt C/caspase 3. Collectively, this nanococktail strategy offers a promising approach to improve the sensitivity of tumor cells to chemotherapeutic drugs and strengthen intractable drug-resistant oncotherapy.
{"title":"Cocrystal@protein-anchoring nanococktail for combinatorially treating multidrug-resistant cancer","authors":"Jiahui Zou , Xuyang Xing , Chao Teng , Qingling Zhao , Wei He , Xuri Wu , Yuanzheng Xia","doi":"10.1016/j.apsb.2024.08.014","DOIUrl":"10.1016/j.apsb.2024.08.014","url":null,"abstract":"<div><div>Multidrug resistance (MDR), the major mechanism by which various cancers develop specific resistance to therapeutic agents, has set up enormous obstacles to many forms of tumor chemotherapy. Traditional cocktail therapy administration, based on the combination of multiple drugs for anti-MDR chemotherapy, often suffers from inconsistent <em>in vivo</em> pharmacokinetic behaviors that cannot act synchronously on the lesions, leading to limited pharmacodynamic outcomes. Despite the emergence of nanomedicines, which has improved chemotherapeutic drugs’ bioavailability and therapeutic effect on clinical application, these monotherapy-based nano-formulations still show poor progression in overcoming MDR. Herein, a “one stone and three birds” nanococktail integrated by a cocrystal@protein-anchoring strategy was purposed for triple-payload delivery, which paclitaxel-disulfiram cocrystal-like nanorods (NRs) were anchored with the basic protein drug Cytochrome <em>c</em> (Cyt C), followed by hyaluronic-acid modification. In particular, NRs were utilized as carrier-like particles to synchronously deliver biomacromolecule Cyt C into tumor cells and then promote cell apoptosis. Of note, on A549/Taxol drug-resistant tumor-bearing mice, the system with extraordinarily high encapsulation efficiency demonstrated prolonged <em>in vivo</em> circulation and increased tumor-targeting accumulation, significantly reversing tumor drug resistance and improving therapeutic efficacy. Our mechanistic study indicated that the system induced the apoptosis of Taxol-resistant tumor cells through the signal axis P-glycoprotein/Cyt C/caspase 3. Collectively, this nanococktail strategy offers a promising approach to improve the sensitivity of tumor cells to chemotherapeutic drugs and strengthen intractable drug-resistant oncotherapy.</div></div>","PeriodicalId":6906,"journal":{"name":"Acta Pharmaceutica Sinica. B","volume":"14 10","pages":"Pages 4509-4525"},"PeriodicalIF":14.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.apsb.2024.06.027
Mesenchymal stem cell (MSC)-based therapies have emerged as promising methods for regenerative medicine; however, how to precisely enhance their tissue repair effects is still a major question in the field. Circulating extracellular vesicles (EVs) from diseased states carry diverse pathological information and affect the functions of recipient cells. Based on this unique property, we report that disease-derived circulating EV (disease-EV) preconditioning is a potent strategy for precisely enhancing the tissue repair potency of MSCs in diverse disease models. Briefly, plasma EVs from lung or kidney tissue injuries were shown to contain distinctly enriched molecules and were shown to induce tissue injury-specific gene expression responses in cultured MSCs. Disease-EV preconditioning improved the performance (including proliferation, migration, and growth factor production) of MSCs through metabolic reprogramming (such as via enhanced oxidative phosphorylation and lipid metabolism) without inducing an adverse immune response. Consequently, compared with normal MSCs, disease-EV-preconditioned MSCs exhibited superior tissue repair effects (including anti-inflammatory and antiapoptotic effects) in diverse types of tissue injury (such as acute lung or kidney injury). Disease-derived EVs may serve as a type of “off-the-shelf” product due to multiple advantages, such as flexibility, stability, long-term storage, and ease of shipment and use. This study highlights the idea that disease-EV preconditioning is a robust strategy for precisely enhancing the regenerative capacity of MSC-based therapies.
基于间充质干细胞(MSC)的疗法已成为前景广阔的再生医学方法;然而,如何精确增强其组织修复效果仍是该领域的一个重大问题。来自疾病状态的循环细胞外囊泡(EVs)携带多种病理信息,并影响受体细胞的功能。基于这种独特的特性,我们报告说,疾病衍生循环EV(disease-EV)预处理是一种有效的策略,可精确增强间充质干细胞在不同疾病模型中的组织修复能力。简而言之,来自肺或肾组织损伤的血浆 EV 含有独特的富集分子,并能在培养的间充质干细胞中诱导组织损伤特异性基因表达反应。疾病-EV预处理通过代谢重编程(如增强氧化磷酸化和脂质代谢)改善了间充质干细胞的性能(包括增殖、迁移和生长因子的产生),而不会诱导不良的免疫反应。因此,与正常间充质干细胞相比,经疾病-EV 预处理的间充质干细胞在不同类型的组织损伤(如急性肺损伤或肾损伤)中表现出卓越的组织修复效果(包括抗炎和抗凋亡作用)。疾病衍生的EV具有多种优势,如灵活性、稳定性、长期储存以及易于运输和使用,因此可作为一种 "现成 "产品。这项研究强调了疾病-EV预处理是精确增强间充质干细胞疗法再生能力的有力策略这一观点。
{"title":"Disease-derived circulating extracellular vesicle preconditioning: A promising strategy for precision mesenchymal stem cell therapy","authors":"","doi":"10.1016/j.apsb.2024.06.027","DOIUrl":"10.1016/j.apsb.2024.06.027","url":null,"abstract":"<div><div>Mesenchymal stem cell (MSC)-based therapies have emerged as promising methods for regenerative medicine; however, how to precisely enhance their tissue repair effects is still a major question in the field. Circulating extracellular vesicles (EVs) from diseased states carry diverse pathological information and affect the functions of recipient cells. Based on this unique property, we report that disease-derived circulating EV (disease-EV) preconditioning is a potent strategy for precisely enhancing the tissue repair potency of MSCs in diverse disease models. Briefly, plasma EVs from lung or kidney tissue injuries were shown to contain distinctly enriched molecules and were shown to induce tissue injury-specific gene expression responses in cultured MSCs. Disease-EV preconditioning improved the performance (including proliferation, migration, and growth factor production) of MSCs through metabolic reprogramming (such as <em>via</em> enhanced oxidative phosphorylation and lipid metabolism) without inducing an adverse immune response. Consequently, compared with normal MSCs, disease-EV-preconditioned MSCs exhibited superior tissue repair effects (including anti-inflammatory and antiapoptotic effects) in diverse types of tissue injury (such as acute lung or kidney injury). Disease-derived EVs may serve as a type of “off-the-shelf” product due to multiple advantages, such as flexibility, stability, long-term storage, and ease of shipment and use. This study highlights the idea that disease-EV preconditioning is a robust strategy for precisely enhancing the regenerative capacity of MSC-based therapies.</div></div>","PeriodicalId":6906,"journal":{"name":"Acta Pharmaceutica Sinica. B","volume":"14 10","pages":"Pages 4526-4543"},"PeriodicalIF":14.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.apsb.2024.06.024
Lai Wang , Haoyuan Yin , Jiao Jiang , Qilin Li , Changxing Gao , Wenrui Li , Bo Zhang , Yue Xin , Hongyang Li , Ming Zhao , Qianjin Lu
Tripterygium wilfordii Hook F (TWHF) is a traditional Chinese medicine widely used in the treatment of systemic lupus erythematosus (SLE), with triptolide (TP) as its main active ingredient. However, its side effects also induced by TP, especially hepatotoxicity and reproductive toxicity, largely limit its application in a subset of patients. Monoclonal antibodies (mAbs) developed for the treatment of SLE that deplete B cells by targeting B cell-expressing antigens, such as CD19, have failed in clinical trials, partly due to their poor efficacy in consuming B cells. Here, we report the development of a rationally designed antibody‒drug conjugate (ADC), CD19 mAb-TP conjugate, to alleviate the side effects of TWHF and simultaneously improve the therapeutic efficacy of CD19 mAb. The CD19 mAb-TP conjugate, which was named ADC-TP, selectively depleted B cell subsets both in vitro and in vivo and effectively alleviated disease symptoms in mouse lupus models with enhanced therapeutic efficacy than CD19 mAb and fewer side effects than TP. Our present study proposes a CD19 mAb‒TP conjugate strategy to mitigate the toxicity of TWHF while also enhancing the therapeutical efficacy of CD19 mAbs for the treatment of SLE, providing a feasible method for improving the current agents used for treating SLE.
钩藤(TWHF)是一种广泛用于治疗系统性红斑狼疮(SLE)的传统中药,其主要活性成分是三苯氧胺(TP)。然而,TP 也会引起副作用,尤其是肝毒性和生殖毒性,这在很大程度上限制了它在部分患者中的应用。为治疗系统性红斑狼疮而开发的单克隆抗体(mAbs)通过靶向 B 细胞表达的抗原(如 CD19)来消耗 B 细胞,但在临床试验中失败了,部分原因是它们消耗 B 细胞的效果不佳。在此,我们报告了一种合理设计的抗体-药物共轭物(ADC)--CD19 mAb-TP共轭物的开发情况,以减轻TWHF的副作用,同时提高CD19 mAb的疗效。CD19 mAb-TP共轭物被命名为ADC-TP,它既能选择性清除B细胞亚群,又能有效缓解小鼠狼疮模型的疾病症状,疗效优于CD19 mAb,而副作用则少于TP。我们的研究提出了一种 CD19 mAb-TP 结合物策略,既能减轻 TWHF 的毒性,又能提高 CD19 mAb 治疗系统性红斑狼疮的疗效,为改进目前治疗系统性红斑狼疮的药物提供了一种可行的方法。
{"title":"A rationally designed CD19 monoclonal antibody-triptolide conjugate for the treatment of systemic lupus erythematosus","authors":"Lai Wang , Haoyuan Yin , Jiao Jiang , Qilin Li , Changxing Gao , Wenrui Li , Bo Zhang , Yue Xin , Hongyang Li , Ming Zhao , Qianjin Lu","doi":"10.1016/j.apsb.2024.06.024","DOIUrl":"10.1016/j.apsb.2024.06.024","url":null,"abstract":"<div><div><em>Tripterygium wilfordii</em> Hook F (TWHF) is a traditional Chinese medicine widely used in the treatment of systemic lupus erythematosus (SLE), with triptolide (TP) as its main active ingredient. However, its side effects also induced by TP, especially hepatotoxicity and reproductive toxicity, largely limit its application in a subset of patients. Monoclonal antibodies (mAbs) developed for the treatment of SLE that deplete B cells by targeting B cell-expressing antigens, such as CD19, have failed in clinical trials, partly due to their poor efficacy in consuming B cells. Here, we report the development of a rationally designed antibody‒drug conjugate (ADC), CD19 mAb-TP conjugate, to alleviate the side effects of TWHF and simultaneously improve the therapeutic efficacy of CD19 mAb. The CD19 mAb-TP conjugate, which was named ADC-TP, selectively depleted B cell subsets both <em>in vitro</em> and <em>in vivo</em> and effectively alleviated disease symptoms in mouse lupus models with enhanced therapeutic efficacy than CD19 mAb and fewer side effects than TP. Our present study proposes a CD19 mAb‒TP conjugate strategy to mitigate the toxicity of TWHF while also enhancing the therapeutical efficacy of CD19 mAbs for the treatment of SLE, providing a feasible method for improving the current agents used for treating SLE.</div></div>","PeriodicalId":6906,"journal":{"name":"Acta Pharmaceutica Sinica. B","volume":"14 10","pages":"Pages 4560-4576"},"PeriodicalIF":14.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.apsb.2024.06.013
The aggregation of Amyloid-β (Aβ) peptides is associated with neurodegeneration in Alzheimer's disease (AD). We previously identified novel naphtalene derivatives, including the lead compound Amylovis-201, able to form thermodynamically stable complexes with Aβ species, peptides and fibrils. As the drug showed a chemical scaffold coherent for an effective interaction with the σ1 receptor chaperone and as σ1 agonists are currently developed as potent neuroprotectants in AD, we investigated the pharmacological action of Amylovis-201 on the σ1 receptor. We report that Amylovis-201 is a potent σ1 agonist by several in silico, in vitro and in vivo assays and that its anti-amnesic and neuroprotective effects involve a pharmacological action at σ1 receptors. Furthermore, we show for the first time that classical σ1 receptor agonist (PRE-084), and antagonist (NE-100) are able to interact and disaggregate Aβ25–35 fibrils. Interestingly, Amylovis-201 was the only compound inhibiting Aβ25–35 aggregates formation. Our results therefore highlight a dual action of Amylovis-201 as anti-aggregating agent and σ1 receptor agonist that could be highly effective in long-term treatment against neurodegeneration in AD.
淀粉样蛋白(A)肽的聚集与阿尔茨海默病(AD)的神经变性有关。我们之前发现了新型萘衍生物,包括先导化合物 Amylovis-201,它们能够与淀粉样蛋白、肽和纤维形成热力学稳定的复合物。由于该药物显示出与受体伴侣有效相互作用的化学支架,而且激动剂目前正被开发为治疗注意力缺失症的强效神经保护剂,因此我们研究了 Amylovis-201 对受体的药理作用。我们报告说,Amylovis-201 是一种强效受体激动剂,其抗失忆和神经保护作用涉及受体的药理作用。此外,我们首次发现经典受体激动剂(PRE-084)和拮抗剂(NE-100)能够相互作用并分解 A 纤维。有趣的是,Amylovis-201 是唯一抑制 A 聚集体形成的化合物。因此,我们的研究结果凸显了Amylovis-201作为抗聚集剂和受体激动剂的双重作用,它在长期治疗AD神经退行性病变方面可能非常有效。
{"title":"Amylovis-201 is a new dual-target ligand, acting as an anti-amyloidogenic compound and a potent agonist of the σ1 chaperone protein","authors":"","doi":"10.1016/j.apsb.2024.06.013","DOIUrl":"10.1016/j.apsb.2024.06.013","url":null,"abstract":"<div><div>The aggregation of Amyloid-<em>β</em> (A<em>β</em>) peptides is associated with neurodegeneration in Alzheimer's disease (AD). We previously identified novel naphtalene derivatives, including the lead compound Amylovis-201, able to form thermodynamically stable complexes with A<em>β</em> species, peptides and fibrils. As the drug showed a chemical scaffold coherent for an effective interaction with the <em>σ</em><sub>1</sub> receptor chaperone and as <em>σ</em><sub>1</sub> agonists are currently developed as potent neuroprotectants in AD, we investigated the pharmacological action of Amylovis-201 on the <em>σ</em><sub>1</sub> receptor. We report that Amylovis-201 is a potent <em>σ</em><sub>1</sub> agonist by several <em>in silico</em>, <em>in vitro</em> and <em>in vivo</em> assays and that its anti-amnesic and neuroprotective effects involve a pharmacological action at <em>σ</em><sub>1</sub> receptors. Furthermore, we show for the first time that classical <em>σ</em><sub>1</sub> receptor agonist (PRE-084), and antagonist (NE-100) are able to interact and disaggregate A<em>β</em><sub>25–35</sub> fibrils. Interestingly, Amylovis-201 was the only compound inhibiting A<em>β</em><sub>25–35</sub> aggregates formation. Our results therefore highlight a dual action of Amylovis-201 as anti-aggregating agent and <em>σ</em><sub>1</sub> receptor agonist that could be highly effective in long-term treatment against neurodegeneration in AD.</div></div>","PeriodicalId":6906,"journal":{"name":"Acta Pharmaceutica Sinica. B","volume":"14 10","pages":"Pages 4345-4359"},"PeriodicalIF":14.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141528648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.apsb.2024.07.004
Yucheng Bao , Jing Qiao , Wenjie Gong , Ruihong Zhang , Yanting Zhou , Yinyin Xie , Yuan Xie , Jiuming He , Tong Yin
Acute myeloid leukemia (AML) is recognized as an aggressive cancer that is characterized by significant metabolic reprogramming. Here, we applied spatial metabolomics to achieve high-throughput, in situ identification of metabolites within the liver metastases of AML mice. Alterations at metabolite and protein levels were further mapped out and validated by integrating untargeted metabolomics and proteomics. This study showed a downregulation in arginine's contribution to polyamine biosynthesis and urea cycle, coupled with an upregulation of the creatine metabolism. The upregulation of creatine synthetases Gatm and Gamt, as well as the creatine transporter Slc6a8, resulted in a marked accumulation of creatine within tumor foci. This process further enhances oxidative phosphorylation and glycolysis of leukemia cells, thereby boosting ATP production to foster proliferation and infiltration. Importantly, we discovered that inhibiting Slc6a8 can counter these detrimental effects, offering a new strategy for treating AML by targeting metabolic pathways.
{"title":"Spatial metabolomics highlights metabolic reprogramming in acute myeloid leukemia mice through creatine pathway","authors":"Yucheng Bao , Jing Qiao , Wenjie Gong , Ruihong Zhang , Yanting Zhou , Yinyin Xie , Yuan Xie , Jiuming He , Tong Yin","doi":"10.1016/j.apsb.2024.07.004","DOIUrl":"10.1016/j.apsb.2024.07.004","url":null,"abstract":"<div><div>Acute myeloid leukemia (AML) is recognized as an aggressive cancer that is characterized by significant metabolic reprogramming. Here, we applied spatial metabolomics to achieve high-throughput, in situ identification of metabolites within the liver metastases of AML mice. Alterations at metabolite and protein levels were further mapped out and validated by integrating untargeted metabolomics and proteomics. This study showed a downregulation in arginine's contribution to polyamine biosynthesis and urea cycle, coupled with an upregulation of the creatine metabolism. The upregulation of creatine synthetases Gatm and Gamt, as well as the creatine transporter Slc6a8, resulted in a marked accumulation of creatine within tumor foci. This process further enhances oxidative phosphorylation and glycolysis of leukemia cells, thereby boosting ATP production to foster proliferation and infiltration. Importantly, we discovered that inhibiting Slc6a8 can counter these detrimental effects, offering a new strategy for treating AML by targeting metabolic pathways.</div></div>","PeriodicalId":6906,"journal":{"name":"Acta Pharmaceutica Sinica. B","volume":"14 10","pages":"Pages 4461-4477"},"PeriodicalIF":14.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141615087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.apsb.2024.05.011
Cardiovascular diseases (CVDs) are a major threat to public health globally. A large proportion of people with dyslipidaemia have poorly controlled lipid levels, emphasizing the need for alternative lipid-lowering treatments that are both effective and safe. Xuezhikang, a red yeast rice (RYR) extract, containing 13 kinds of monacolins and other bioactive components, emerges as one such promising option. Its discovery was built on a long history of RYR use as a functional food supplement and traditional Chinese medicine. Several randomized, controlled clinical trials have substantiated its lipid-lowering effects and its potential to protect against CVDs. Safety concerns with statins did not arise during decades of experience with Xuezhikang treatment in clinical practice. The approval of Xuezhikang in multiple regions of Asia marked a conceptual shift in CVD management, moving from single agents to polypills and from synthetic medicines to natural extracts. This review comprehensively addresses important topics related to this medicinal natural extract, including the ancient utilization of RYR, the development of Xuezhikang, its mechanisms of action, pleiotropic effects, clinical studies, challenges, and future perspectives to enhance our understanding regarding the role of Xuezhikang, a representative, domestic lipid-lowering drug of RYR, in prevention and treatment of CVD.
{"title":"A systematic, updated review of Xuezhikang, a domestically developed lipid-lowering drug, in the application of cardiovascular diseases","authors":"","doi":"10.1016/j.apsb.2024.05.011","DOIUrl":"10.1016/j.apsb.2024.05.011","url":null,"abstract":"<div><div>Cardiovascular diseases (CVDs) are a major threat to public health globally. A large proportion of people with dyslipidaemia have poorly controlled lipid levels, emphasizing the need for alternative lipid-lowering treatments that are both effective and safe. Xuezhikang, a red yeast rice (RYR) extract, containing 13 kinds of monacolins and other bioactive components, emerges as one such promising option. Its discovery was built on a long history of RYR use as a functional food supplement and traditional Chinese medicine. Several randomized, controlled clinical trials have substantiated its lipid-lowering effects and its potential to protect against CVDs. Safety concerns with statins did not arise during decades of experience with Xuezhikang treatment in clinical practice. The approval of Xuezhikang in multiple regions of Asia marked a conceptual shift in CVD management, moving from single agents to polypills and from synthetic medicines to natural extracts. This review comprehensively addresses important topics related to this medicinal natural extract, including the ancient utilization of RYR, the development of Xuezhikang, its mechanisms of action, pleiotropic effects, clinical studies, challenges, and future perspectives to enhance our understanding regarding the role of Xuezhikang, a representative, domestic lipid-lowering drug of RYR, in prevention and treatment of CVD.</div></div>","PeriodicalId":6906,"journal":{"name":"Acta Pharmaceutica Sinica. B","volume":"14 10","pages":"Pages 4228-4242"},"PeriodicalIF":14.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141033795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}