Journal of Enzyme Inhibition and Medicinal Chemistry最新文献

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Effects of thymoquinone and the curcumin analog EF-24 on the activity of the enzyme paraoxonase-1 in human glioblastoma cells U87MG. 胸腺醌和姜黄素类似物 EF-24 对人胶质母细胞瘤细胞 U87MG 中副氧合酶-1 活性的影响。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-06-12 DOI: 10.1080/14756366.2024.2339901
Ender Simsek, Asuman Sunguroglu, Ahmet Kilic, Nurbanu Özgültekin, O Ozensoy Guler
{"title":"Effects of thymoquinone and the curcumin analog EF-24 on the activity of the enzyme paraoxonase-1 in human glioblastoma cells U87MG.","authors":"Ender Simsek, Asuman Sunguroglu, Ahmet Kilic, Nurbanu Özgültekin, O Ozensoy Guler","doi":"10.1080/14756366.2024.2339901","DOIUrl":"10.1080/14756366.2024.2339901","url":null,"abstract":"<p><p>The spices and aromatic herbs were used not only in cooking to add flavour and smell to dishes but also for medicinal use. Nigella sativa, also called black cumin, is one of the species that contains an important bioactive component, thymoquinone (TQ), which has antioxidant, anti-inflammatory, antimicrobial, and antidiabetic effects. Curcuma longa, which also includes curcumin, has numerous anti-cancer properties. However, the bioavailability of curcumin is lower than that of its analogs. An analog of curcumin (EF-24), which has better bioavailability than curcumin, is capable of exerting a high anti-cancer effect. In our study, we determined the effects of PON1 enzyme activity on the proliferation and aggressiveness of glioblastoma cancer treated with TQ and EF-24 from lysates of the glioblastoma cell line U87MG. The results were determined as increased PON1 activity after treatment with TQ and EF-24 in the U87MG cell line (<i>p</i> < 0.0001).</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2339901"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11172254/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141306105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cloning, expression, and purification of an α-carbonic anhydrase from Toxoplasma gondii to unveil its kinetic parameters and anion inhibition profile. 从弓形虫中克隆、表达和纯化一种α-碳酸酐酶,以揭示其动力学参数和阴离子抑制曲线。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-06-07 DOI: 10.1080/14756366.2024.2346523
Viviana De Luca, Simone Giovannuzzi, Clemente Capasso, Claudiu T Supuran
{"title":"Cloning, expression, and purification of an α-carbonic anhydrase from <i>Toxoplasma gondii</i> to unveil its kinetic parameters and anion inhibition profile.","authors":"Viviana De Luca, Simone Giovannuzzi, Clemente Capasso, Claudiu T Supuran","doi":"10.1080/14756366.2024.2346523","DOIUrl":"10.1080/14756366.2024.2346523","url":null,"abstract":"<p><p>Toxoplasmosis, induced by the intracellular parasite <i>Toxoplasma gondii</i>, holds considerable implications for global health. While treatment options primarily focusing on folate pathway enzymes have notable limitations, current research endeavours concentrate on pinpointing specific metabolic pathways vital for parasite survival. Carbonic anhydrases (CAs, EC 4.2.1.1) have emerged as potential drug targets due to their role in fundamental reactions critical for various protozoan metabolic processes. Within <i>T. gondii</i>, the Carbonic Anhydrase-Related Protein (TgCA_RP) plays a pivotal role in rhoptry biogenesis. Notably, α-CA (TcCA) from another protozoan, <i>Trypanosoma cruzi</i>, exhibited considerable susceptibility to classical CA inhibitors (CAIs) such as anions, sulphonamides, thiols, and hydroxamates. Here, the recombinant DNA technology was employed to synthesise and clone the identified gene in the <i>T. gondii</i> genome, which encodes an α-CA protein (Tg_CA), with the purpose of heterologously overexpressing its corresponding protein. Tg_CA kinetic constants were determined, and its inhibition patterns explored with inorganic metal-complexing compounds, which are relevant for rational compound design. The significance of this study lies in the potential development of innovative therapeutic strategies that disrupt the vital metabolic pathways crucial for <i>T. gondii</i> survival and virulence. This research may lead to the development of targeted treatments, offering new approaches to manage toxoplasmosis.</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2346523"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11163988/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141283871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Druggable cavities and allosteric modulators of the cell division cycle 7 (CDC7) kinase. 细胞分裂周期 7 (CDC7) 激酶的药腔和异位调节剂。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-01-11 DOI: 10.1080/14756366.2024.2301767
Elisa Rojas-Prats, Loreto Martinez-Gonzalez, Carmen Gil, David Ramírez, Ana Martinez
{"title":"Druggable cavities and allosteric modulators of the cell division cycle 7 (CDC7) kinase.","authors":"Elisa Rojas-Prats, Loreto Martinez-Gonzalez, Carmen Gil, David Ramírez, Ana Martinez","doi":"10.1080/14756366.2024.2301767","DOIUrl":"10.1080/14756366.2024.2301767","url":null,"abstract":"<p><p>Cell division cycle 7 kinase (CDC7) has been found overexpressed in many cancer cell lines being also one of the kinases involved in the nuclear protein TDP-43 phosphorylation <i>in vivo</i>. Thus, inhibitors of CDC7 are emerging drug candidates for the treatment of oncological and neurodegenerative unmet diseases. All the known CDC7 inhibitors are ATP-competitives, lacking of selectivity enough for success in clinical trials. As allosteric sites are less conserved among kinase proteins, discovery of allosteric modulators of CDC7 is a great challenge and opportunity in this field.Using different computational approaches, we have here identified new druggable cavities on the human CDC7 structure and subsequently selective CDC7 inhibitors with allosteric modulation mainly targeting the pockets where the interaction between this kinase and its activator DBF4 takes place.</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2301767"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10786434/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139417218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Palindromic carbazole derivatives: unveiling their antiproliferative effect via topoisomerase II catalytic inhibition and apoptosis induction. 多环咔唑衍生物:通过拓扑异构酶 II 催化抑制和诱导细胞凋亡揭示其抗增殖作用
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-01-14 DOI: 10.1080/14756366.2024.2302920
Mateusz Olszewski, Natalia Maciejewska, Anoop Kallingal, Agnieszka Chylewska, Aleksandra M Dąbrowska, Małgorzata Biedulska, Mariusz Makowski, José M Padrón, Maciej Baginski
{"title":"Palindromic carbazole derivatives: unveiling their antiproliferative effect via topoisomerase II catalytic inhibition and apoptosis induction.","authors":"Mateusz Olszewski, Natalia Maciejewska, Anoop Kallingal, Agnieszka Chylewska, Aleksandra M Dąbrowska, Małgorzata Biedulska, Mariusz Makowski, José M Padrón, Maciej Baginski","doi":"10.1080/14756366.2024.2302920","DOIUrl":"10.1080/14756366.2024.2302920","url":null,"abstract":"<p><p>Human DNA topoisomerases are essential for crucial cellular processes, including DNA replication, transcription, chromatin condensation, and maintenance of its structure. One of the significant strategies employed in cancer treatment involves the inhibition of a specific type of topoisomerase, known as topoisomerase II (Topo II). Carbazole derivatives, recognised for their varied biological activities, have recently become a significant focus in oncological research. This study assesses the efficacy of three symmetrically substituted carbazole derivatives: 2,7-Di(2-furyl)-9H-carbazole (<b>27a</b>), 3,6-Di(2-furyl)-9H-carbazole (<b>36a</b>), and 3,6-Di(2-thienyl)-9H-carbazole (<b>36b</b>) - as anticancer agents. Among investigated carbazole derivatives, compound 3,6-di(2-furyl)-9H-carbazole bearing two furan moieties emerged as a novel catalytic inhibitor of Topo II. Notably, 3,6-di(2-furyl)-9H-carbazole effectively selectively inhibited the relaxation and decatenation activities of Topo IIα, with minimal effects on the IIβ isoform. These findings underscore the potential of compound 3,6-Di(2-furyl)-9H-carbazole as a promising lead candidate warranting further investigation in the realm of anticancer drug development.</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2302920"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10791108/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139466698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fluorinated indeno-quinoxaline bearing thiazole moieties as hypoglycaemic agents targeting α-amylase, and α-glucosidase: synthesis, molecular docking, and ADMET studies. 以α-淀粉酶和α-葡萄糖苷酶为靶标的含噻唑分子的氟化茚喹喔啉类降血糖药:合成、分子对接和 ADMET 研究。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-06-24 DOI: 10.1080/14756366.2024.2367128
Nirvana A Gohar, Eman A Fayed, Yousry A Ammar, Ola A Abu Ali, Ahmed Ragab, Amal M Mahfoz, Moustafa S Abusaif
{"title":"Fluorinated indeno-quinoxaline bearing thiazole moieties as hypoglycaemic agents targeting <i>α</i>-amylase, and <i>α</i>-glucosidase: synthesis, molecular docking, and ADMET studies.","authors":"Nirvana A Gohar, Eman A Fayed, Yousry A Ammar, Ola A Abu Ali, Ahmed Ragab, Amal M Mahfoz, Moustafa S Abusaif","doi":"10.1080/14756366.2024.2367128","DOIUrl":"10.1080/14756366.2024.2367128","url":null,"abstract":"<p><p>Inhibition of α-glucosidase and <i>α</i>-amylase are key tactics for managing blood glucose levels. Currently, stronger, and more accessible inhibitors are needed to treat diabetes. Indeno[1,2-<i>b</i>] quinoxalines-carrying thiazole hybrids <b>1-17</b> were created and described using NMR. All analogues were tested for hypoglycaemic effect against STZ-induced diabetes in mice. Compounds <b>4</b>, <b>6</b>, <b>8</b>, and <b>16</b> were the most potent among the synthesised analogues. These hybrids were examined for their effects on plasma insulin, urea, creatinine, GSH, MDA, ALT, AST, and total cholesterol. Moreover, these compounds were tested against <i>α</i>-glucosidase and <i>α</i>-amylase enzymes <i>in vitro</i>. The four hybrids <b>4</b>, <b>6</b>, <b>8</b>, and <b>16</b> represented moderate to potent activity with IC<sub>50</sub> values 0.982 ± 0.04, to 10.19 ± 0.21 for <i>α</i>-glucosidase inhibition and 17.58 ± 0.74 to 121.6 ± 5.14 μM for <i>α</i>-amylase inhibition when compared to the standard medication acarbose with IC<sub>50</sub>=0.316 ± 0.02 μM for <i>α</i>-glucosidase inhibition and 31.56 ± 1.33 μM for <i>α</i>-amylase inhibition. Docking studies as well as <i>in silico</i> ADMT were done.</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2367128"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC467095/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141446338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Watermelon: setup and validation of an in silico fragment-based approach. 西瓜:基于片段的硅学方法的设置和验证。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-06-12 DOI: 10.1080/14756366.2024.2356179
Miriana Di Stefano, Salvatore Galati, Lisa Piazza, Francesca Gado, Carlotta Granchi, Marco Macchia, Antonio Giordano, Tiziano Tuccinardi, Giulio Poli
{"title":"Watermelon: setup and validation of an <i>in silico</i> fragment-based approach.","authors":"Miriana Di Stefano, Salvatore Galati, Lisa Piazza, Francesca Gado, Carlotta Granchi, Marco Macchia, Antonio Giordano, Tiziano Tuccinardi, Giulio Poli","doi":"10.1080/14756366.2024.2356179","DOIUrl":"10.1080/14756366.2024.2356179","url":null,"abstract":"<p><p>We present a new computational approach, named <i>Watermelon</i>, designed for the development of pharmacophore models based on receptor structures. The methodology involves the sampling of potential hotspots for ligand interactions within a protein target's binding site, utilising molecular fragments as probes. By employing docking and molecular dynamics (MD) simulations, the most significant interactions formed by these probes within distinct regions of the binding site are identified. These interactions are subsequently transformed into pharmacophore features that delineates key anchoring sites for potential ligands. The reliability of the approach was experimentally validated using the monoacylglycerol lipase (MAGL) enzyme. The generated pharmacophore model captured features representing ligand-MAGL interactions observed in various X-ray co-crystal structures and was employed to screen a database of commercially available compounds, in combination with consensus docking and MD simulations. The screening successfully identified two new MAGL inhibitors with micromolar potency, thus confirming the reliability of the <i>Watermelon</i> approach.</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2356179"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11232643/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141306106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of certain benzylidene coumarin derivatives as anti-prostate cancer agents targeting EGFR and PI3Kβ kinases. 将某些苯亚甲基香豆素衍生物开发为靶向表皮生长因子受体(EGFR)和 PI3Kβ 激酶的抗前列腺癌药物。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-02-13 DOI: 10.1080/14756366.2024.2311157
Mohamed Elagawany, Lina M A Abdel Ghany, Tarek S Ibrahim, Abdulrhman S Alharbi, Mohamed S Abdel-Aziz, Eman M El-Labbad, Noha Ryad
{"title":"Development of certain benzylidene coumarin derivatives as anti-prostate cancer agents targeting EGFR and PI3Kβ kinases.","authors":"Mohamed Elagawany, Lina M A Abdel Ghany, Tarek S Ibrahim, Abdulrhman S Alharbi, Mohamed S Abdel-Aziz, Eman M El-Labbad, Noha Ryad","doi":"10.1080/14756366.2024.2311157","DOIUrl":"10.1080/14756366.2024.2311157","url":null,"abstract":"<p><p>Novel coumarin derivatives were synthesised and tested for their cytotoxicity against human cancer cells (PC-3 and MDA-MB-231). Compounds <b>5</b>, <b>4b</b>, and <b>4a</b> possessed potent cytotoxic activity against PC-3 cells with IC<sub>50</sub> 3.56, 8.99, and 10.22 µM, respectively. Compound <b>4c</b> displayed cytotoxicity more than erlotinib in the MDA-MB-231 cells with IC<sub>50</sub> 8.5 µM. Moreover, compound <b>5</b> exhibited potent inhibitory activity on EFGR with IC<sub>50</sub> 0.1812 µM, as well as PI3Kβ inhibitory activity that was twofold higher than LY294002, suggesting that this compound has a dual EGFR and PI3Kβ inhibiting activity. Docking aligns with the <i>in vitro</i> results and sheds light on the molecular mechanisms underlying dual targeting. Furthermore, compound <b>5</b> decreased AKT and m-TOR expression in PC-3 cells, showing that it specifically targets these cells via the EGFR/PI3K/Akt/m-TOR signalling pathway. Simultaneously, compound <b>5</b> caused cell cycle arrest at S phase and induced activation of both intrinsic and extrinsic apoptotic pathways.</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2311157"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10866054/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139722893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Discovery of novel and potent dual-targeting AXL/HDAC2 inhibitors for colorectal cancer treatment via structure-based pharmacophore modelling, virtual screening, and molecular docking, molecular dynamics simulation studies, and biological evaluation. 通过基于结构的药效学建模、虚拟筛选、分子对接、分子动力学模拟研究和生物学评价,发现治疗结直肠癌的新型强效 AXL/HDAC2 双靶向抑制剂。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2023-12-22 DOI: 10.1080/14756366.2023.2295241
Xiao Qiao, Xiangyu Wu, Shutong Chen, Miao-Miao Niu, Huilian Hua, Yan Zhang
{"title":"Discovery of novel and potent dual-targeting AXL/HDAC2 inhibitors for colorectal cancer treatment via structure-based pharmacophore modelling, virtual screening, and molecular docking, molecular dynamics simulation studies, and biological evaluation.","authors":"Xiao Qiao, Xiangyu Wu, Shutong Chen, Miao-Miao Niu, Huilian Hua, Yan Zhang","doi":"10.1080/14756366.2023.2295241","DOIUrl":"10.1080/14756366.2023.2295241","url":null,"abstract":"<p><p>Colorectal cancer (CRC) is one of the most common cancers worldwide. Nowadays, owing to the complex mechanism of tumorigenesis, simultaneous inhibition of multiple targets is an important anticancer strategy. Recent studies have demonstrated receptor tyrosine kinase AXL (AXL) and histone deacetylase 2 (HDAC2) are closely associated with colorectal cancer. Herein, we identified five hit compounds concurrently targeting AXL and HDAC2 using virtual screening. Inhibitory experiments revealed these hit compounds potently inhibited AXL and HDAC2 in the nanomolar range. Among them, Hit-3 showed the strongest inhibitory effects which were better than that of the positive control groups. Additionally, MD assays showed that Hit-3 could bind stably to the AXL and HDAC2 active pockets. Further MTT assays demonstrated that Hit-3 showed potent anti-proliferative activity. Most importantly, Hit-3 exhibited significant <i>in vivo</i> antitumor efficacy in xenograft models. Collectively, this study is the first discovery of dual-targeting AXL/HDAC2 inhibitors for colorectal cancer treatment.</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2295241"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10763849/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138885025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
o-Vanillin binds covalently to MAL/TIRAP Lys-210 but independently inhibits TLR2. o-香兰素与 MAL/TIRAP Lys-210 共价结合,但独立抑制 TLR2。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-02-28 DOI: 10.1080/14756366.2024.2313055
Md Habibur Rahaman, Sara J Thygesen, Michael J Maxwell, Hyoyoung Kim, Prerna Mudai, Jeffrey D Nanson, Xinying Jia, Parimala R Vajjhala, Andrew Hedger, Irina Vetter, Thomas Haselhorst, Avril A B Robertson, Brian Dymock, Thomas Ve, Mehdi Mobli, Katryn J Stacey, Bostjan Kobe
{"title":"o-Vanillin binds covalently to MAL/TIRAP Lys-210 but independently inhibits TLR2.","authors":"Md Habibur Rahaman, Sara J Thygesen, Michael J Maxwell, Hyoyoung Kim, Prerna Mudai, Jeffrey D Nanson, Xinying Jia, Parimala R Vajjhala, Andrew Hedger, Irina Vetter, Thomas Haselhorst, Avril A B Robertson, Brian Dymock, Thomas Ve, Mehdi Mobli, Katryn J Stacey, Bostjan Kobe","doi":"10.1080/14756366.2024.2313055","DOIUrl":"10.1080/14756366.2024.2313055","url":null,"abstract":"<p><p>Toll-like receptor (TLR) innate immunity signalling protects against pathogens, but excessive or prolonged signalling contributes to a range of inflammatory conditions. Structural information on the TLR cytoplasmic TIR (Toll/interleukin-1 receptor) domains and the downstream adaptor proteins can help us develop inhibitors targeting this pathway. The small molecule o-vanillin has previously been reported as an inhibitor of TLR2 signalling. To study its mechanism of action, we tested its binding to the TIR domain of the TLR adaptor MAL/TIRAP (MAL<sup>TIR</sup>). We show that o-vanillin binds to MAL<sup>TIR</sup> and inhibits its higher-order assembly <i>in vitro</i>. Using NMR approaches, we show that o-vanillin forms a covalent bond with lysine 210 of MAL. We confirm in mouse and human cells that o-vanillin inhibits TLR2 but not TLR4 signalling, independently of MAL, suggesting it may covalently modify TLR2 signalling complexes directly. Reactive aldehyde-containing small molecules such as o-vanillin may target multiple proteins in the cell.</p>","PeriodicalId":15769,"journal":{"name":"Journal of Enzyme Inhibition and Medicinal Chemistry","volume":"39 1","pages":"2313055"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10903754/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139990277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The repertoire of iron superoxide dismutases from Leishmania infantum as targets in the search for therapeutic agents against leishmaniasis. 将婴儿利什曼原虫的铁超氧化物歧化酶作为寻找利什曼病治疗药物的目标。
IF 5.6 2区 医学
Journal of Enzyme Inhibition and Medicinal Chemistry Pub Date : 2024-12-01 Epub Date: 2024-07-22 DOI: 10.1080/14756366.2024.2377586
Juan Carlos García-Soriano, Héctor de Lucio, Daniel Elvira-Blázquez, Mercedes Alcón-Calderón, Natalia Sanz Del Olmo, Pedro A Sánchez-Murcia, Paula Ortega, Francisco Javier de la Mata, Antonio Jiménez-Ruiz
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