A novel fluorogenic reporter substrate for 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase gamma-2 (PLCγ2): Application to high-throughput screening for activators to treat Alzheimer's disease.
A novel fluorogenic reporter substrate for 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase gamma-2 (PLCγ2): Application to high-throughput screening for activators to treat Alzheimer's disease.
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DOI：
10.1016/j.slasd.2023.03.003
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发表时间：
2023-06
期刊：
影响因子：
3.1
通讯作者：
Putt, Karson S.
中科院分区：
文献类型：
--
作者：
Visvanathan, Ramya;Utsuki, Tadanobu;Beck, Daniel E.;Lendy, Emma;Sun, Kuai-lin;Liu, Yinghui;Hering, Kirk W.;Mesecar, Andrew;Zhang, Zhong-Yin;Putt, Karson S.
关键词：
与野生型相比，在小胶质细胞中表达的PLCγ2（P522 R）中的罕见编码变体诱导酶活性的温和活化。据报道，这种突变可以预防与迟发性阿尔茨海默病（LOAD）相关的认知能力下降，因此，野生型PLCγ2的激活已被认为是预防和治疗LOAD的潜在治疗靶点。此外，PLCγ2还与其他疾病相关，如癌症和一些自身免疫性疾病，其中已鉴定出PLCγ2活性增加更大的突变。在此，药理学抑制可提供治疗效果。为了便于我们对PLCγ2活性的研究，我们开发了一种优化的荧光底物来监测水溶液中的酶活性。这是通过首先探索各种“开启”荧光团的光谱特性来实现的。将最有前途的开启荧光团掺入到水溶性PLCγ2报告底物中，我们将其命名为C8 CF 3-香豆素。确定了PLCγ2酶催化C8 CF 3-香豆素的能力，并测定了反应动力学。优化了反应条件以鉴定小分子激活剂，并对药理活性化合物库1280（LOPAC 1280）进行了中试筛选，目的是鉴定PLCγ2的小分子激活剂。优化的筛选条件允许鉴定潜在的PLCγ2激活剂和抑制剂，从而证明该方法用于高通量筛选的可行性。
A rare coding variant in PLCγ2 (P522R) expressed in microglia induces a mild activation of enzymatic activity when compared to wild-type. This mutation is reported to be protective against the cognitive decline associated with late-onset Alzheimer’s disease (LOAD) and therefore, activation of wild-type PLCγ2 has been suggested as a potential therapeutic target for the prevention and treatment of LOAD. Additionally, PLCγ2 has been associated with other diseases such as cancer and some autoimmune disorders where mutations with much greater increases in PLCγ2 activity have been identified. Here, pharmacological inhibition may provide a therapeutic effect. In order to facilitate our investigation of the activity of PLCγ2, we developed an optimized fluorogenic substrate to monitor enzymatic activity in aqueous solution. This was accomplished by first exploring the spectral properties of various “turn-on” fluorophores. The most promising turn-on fluorophore was incorporated into a water-soluble PLCγ2 reporter substrate, which we named C8CF3-coumarin. The ability of PLCγ2 to enzymatically process C8CF3-coumarin was confirmed, and the kinetics of the reaction were determined. Reaction conditions were optimized to identify small molecule activators, and a pilot screen of the Library of Pharmacologically Active Compounds 1280 (LOPAC1280) was performed with the goal of identifying small molecule activators of PLCγ2. The optimized screening conditions allowed identification of potential PLCγ2 activators and inhibitors, thus demonstrating the feasibility of this approach for high-throughput screening.
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DOI：
10.1016/j.jbc.2021.100905
发表时间：
2021-08
期刊：
The Journal of biological chemistry
影响因子：
--
作者：
Jackson JT;Mulazzani E;Nutt SL;Masters SL
通讯作者：
Masters SL
影响因子：
30.8
作者：
Bellenguez, Celine;Kucukali, Fahri;Jansen, Iris E.;Kleineidam, Luca;Moreno-Grau, Sonia;Amin, Najaf;Naj, Adam C.;Campos-Martin, Rafael;Grenier-Boley, Benjamin;Andrade, Victor;Holmans, Peter A.;Boland, Anne;Damotte, Vincent;van der Lee, Sven J.;Costa, Marcos R.;Kuulasmaa, Teemu;Yang, Qiong;De Rojas, Itziar;Bis, Joshua C.;Yaqub, Amber;Prokic, Ivana;Chapuis, Julien;Ahmad, Shahzad;Giedraitis, Vilmantas;Aarsland, Dag;Garcia-Gonzalez, Pablo;Abdelnour, Carla;Alarcon-Martin, Emilio;Alcolea, Daniel;Alegret, Montserrat;Alvarez, Ignacio;Alvarez, Victoria;Armstrong, Nicola J.;Tsolaki, Anthoula;Antunez, Carmen;Appollonio, Ildebrando;Arcaro, Marina;Archetti, Silvana;Arias Pastor, Alfonso;Arosio, Beatrice;Athanasiu, Lavinia;Bailly, Henri;Banaj, Nerisa;Baquero, Miquel;Barral, Sandra;Beiser, Alexa;Pastor, Ana Belen;Below, Jennifer E.;Benchek, Penelope;Benussi, Luisa;Berr, Claudine;Besse, Celine;Bessi, Valentina;Binetti, Giuliano;Bizarro, Alessandra;Blesa, Rafael;Boada, Merce;Boerwinkle, Eric;Borroni, Barbara;Boschi, Silvia;Bossu, Paola;Brathen, Geir;Bressler, Jan;Bresner, Catherine;Brodaty, Henry;Brookes, Keeley J.;Ignacio Brusco, Luis;Buiza-Rueda, Dolores;Burger, Katharina;Burholt, Vanessa;Bush, William S.;Calero, Miguel;Cantwell, Laura B.;Chene, Genevieve;Chung, Jaeyoon;Cuccaro, Michael L.;Cecchetti, Roberta;Cervera-Carles, Laura;Charbonnier, Camille;Chen, Hung-Hsin;Chillotti, Caterina;Ciccone, Simona;Claassen, Jurgen A. H. R.;Clark, Christopher;Conti, Elisa;Corma-Gomez, Anais;Costantini, Emanuele;Custodero, Carlo;Daian, Delphine;Dalmasso, Maria Carolina;Daniele, Antonio;Dardiotis, Efthimios;Dartigues, Jean-Francois;de Deyn, Peter Paul;Lopes, Katia de Paiva;De Witte, Lot D.;Debette, Stephanie;Deckert, Jurgen;del Ser, Teodoro;Denning, Nicola;Destefano, Anita;Dichgans, Martin;Diehl-Schmid, Janine;Diez-Fairen, Monica;Rossi, Paolo Dionigi;Djurovic, Srdjan;Duron, Emmanuelle;Duzel, Emrah;Dufouil, Carole;Eiriksdottir, Gudny;Engelborghs, Sebastiaan;Escott-Price, Valentina;Espinosa, Ana;Ewers, Michael;Faber, Kelley M.;Fabrizio, Tagliavini;Nielsen, Sune Fallgaard;Fardo, David W.;Farotti, Lucia;Fenoglio, Chiara;Fernandez-Fuertes, Marta;Ferrari, Raffaele;Ferreira, Catarina B.;Ferri, Evelyn;Fin, Bertrand;Fischer, Peter;Fladby, Tormod;Fliessbach, Klaus;Fongang, Bernard;Fornage, Myriam;Fortea, Juan;Foroud, Tatiana M.;Fostinelli, Silvia;Fox, Nick C.;Franco-Macias, Emlio;Bullido, Maria J.;Frank-Garcia, Ana;Froelich, Lutz;Fulton-Howard, Brian;Galimberti, Daniela;Maria Garcia-Alberca, Jose;Garcia-Madrona, Sebastian;Garcia-Ribas, Guillermo;Ghidoni, Roberta;Giegling, Ina;Giorgio, Giaccone;Goate, Alison M.;Goldhardt, Oliver;Gomez-Fonseca, Duber;Gonzalez-Perez, Antonio;Graff, Caroline;Grande, Giulia;Green, Emma;Grimmer, Timo;Grunblatt, Edna;Grunin, Michelle;Gudnason, Vilmundur;Guetta-Baranes, Tamar;Haapasalo, Annakaisa;Hadjigeorgiou, Georgios;Haines, Jonathan L.;Hamilton-Nelson, Kara L.;Hampel, Harald;Hanon, Olivier;Hardy, John;Hartmann, Annette M.;Hausner, Lucrezia;Harwood, Janet;Heilmann-Heimbach, Stefanie;Helisalmi, Seppo;Heneka, Michael T.;Hernandez, Isabel;Herrmann, Martin J.;Hoffmann, Per;Holmes, Clive;Holstege, Henne;Huerto Vilas, Raquel;Hulsman, Marc;Humphrey, Jack;Biessels, Geert Jan;Jian, Xueqiu;Johansson, Charlotte;Jun, Gyungah R.;Kastumata, Yuriko;Kauwe, John;Kehoe, Patrick G.;Kilander, Lena;Stahlbom, Anne Kinhult;Kivipelto, Miia;Koivisto, Anne;Kornhuber, Johannes;Kosmidis, Mary H.;Kukull, Walter A.;Kuksa, Pavel P.;Kunkle, Brian W.;Kuzma, Amanda B.;Lage, Carmen;Laukka, Erika J.;Launer, Lenore;Lauria, Alessandra;Lee, Chien-Yueh;Lehtisalo, Jenni;Lerch, Ondrej;Lleo, Alberto;Longstreth, William, Jr.;Lopez, Oscar;Lopez de Munain, Adolfo;Love, Seth;Lowemark, Malin;Luckcuck, Lauren;Lunetta, Kathryn L.;Ma, Yiyi;Macias, Juan;Macleod, Catherine A.;Maier, Wolfgang;Mangialasche, Francesca;Spallazzi, Marco;Marquie, Marta;Marshall, Rachel;Martin, Eden R.;Martin Montes, Angel;Martinez Rodriguez, Carmen;Masullo, Carlo;Mayeux, Richard;Mead, Simon;Mecocci, Patrizia;Medina, Miguel;Meggy, Alun;Mehrabian, Shima;Mendoza, Silvia;Menendez-Gonzalez, Manuel;Mir, Pablo;Moebus, Susanne;Mol, Merel;Molina-Porcel, Laura;Montrreal, Laura;Morelli, Laura;Moreno, Fermin;Morgan, Kevin;Mosley, Thomas;Nothen, Markus M.;Muchnik, Carolina;Mukherjee, Shubhabrata;Nacmias, Benedetta;Ngandu, Tiia;Nicolas, Gael;Nordestgaard, Borge G.;Olaso, Robert;Orellana, Adelina;Orsini, Michela;Ortega, Gemma;Padovani, Alessandro;Paolo, Caffarra;Papenberg, Goran;Parnetti, Lucilla;Pasquier, Florence;Pastor, Pau;Peloso, Gina;Perez-Cordon, Alba;Perez-Tur, Jordi;Pericard, Pierre;Peters, Oliver;Pijnenburg, Yolande A. L.;Pineda, Juan A.;Pinol-Ripoll, Gerard;Pisanu, Laudia;Polak, Thomas;Popp, Julius;Posthuma, Danielle;Priller, Josef;Puerta, Raquel;Quenez, Olivier;Quintela, Ines;Thomassen, Jesper Qvist;Rabano, Alberto;Rainero, Innocenzo;Rajabli, Farid;Ramakers, Inez;Real, Luis M.;Reinders, Marcel J. T.;Reitz, Christiane;Reyes-Dumeyer, Dolly;Ridge, Perry;Riedel-Heller, Steffi;Riederer, Peter;Roberto, Natalia;Rodriguez-Rodriguez, Eloy;Rongve, Arvid;Rosas Allende, Irene;Rosende-Roca, Maitee;Luis Royo, Jose;Rubino, Elisa;Rujescu, Dan;Eugenia Saez, Maria;Sakka, Paraskevi;Saltvedt, Ingvild;Bernal Sanchez-Arjona, Maria;Sanchez-Garcia, Florentino;Sanchez Juan, Pascual;Sanchez-Valle, Raquel;Sando, Sigrid B.;Sarnowski, Chloe;Satizabal, Claudia L.;Scamosci, Michela;Scarmeas, Nikolaos;Scarpini, Elio;Scheltens, Philip;Scherbaum, Norbert;Scherer, Martin;Schmid, Matthias;Schneider, Anja;Schott, Jonathan M.;Selbaek, Geir;Seripa, Davide;Serrano, Manuel;Sha, Jin;Shadrin, Alexey A.;Skrobot, Olivia;Slifer, Susan;Snijders, Gijsje J. L.;Soininen, Hilkka;Solfrizzi, Vincenzo;Solomon, Alina;Song, Yeunjoo;Sorbi, Sandro;Sotolongo-Grau, Oscar;Spalletta, Gianfranco;Spottke, Annika;Squassina, Alessio;Stordal, Eystein;Pablo Tartan, Juan;Tarraga, Lluis;Tesi, Niccolo;Thalamuthu, Anbupalam;Thomas, Tegos;Tosto, Giuseppe;Traykov, Latchezar;Tremolizzo, Lucio;Tybjaerg-Hansen, Anne;Uitterlinden, Andre;Ullgren, Abbe;Ulstein, Ingun;Valero, Sergi;Valladares, Otto;Van Broeckhoven, Christine;Vance, Jeffery;Vardarajan, Badri N.;van der Lugt, Aad;Van Dongen, Jasper;van Rooij, Jeroen;van Swieten, John;Vandenberghe, Rik;Verhey, Frans;Vidal, Jean-Sebastien;Vogelgsang, Jonathan;Vyhnalek, Martin;Wagner, Michael;Wallon, David;Wang, Li-San;Wang, Ruiqi;Weinhold, Leonie;Wiltfang, Jens;Windle, Gill;Woods, Bob;Yannakoulia, Mary;Zare, Habil;Zhao, Yi;Zhang, Xiaoling;Zhu, Congcong;Zulaica, Miren;Farrer, Lindsay A.;Psaty, Bruce M.;Ghanbari, Mohsen;Raj, Towfique;Sachdev, Perminder;Mather, Karen;Jessen, Frank;Ikram, M. Arfan;de Mendonca, Alexandre;Hort, Jakub;Tsolaki, Magda;Pericak-Vance, Margaret A.;Amouyel, Philippe;Williams, Julie;Frikke-Schmidt, Ruth;Clarimon, Jordi;Deleuze, Jean-Francois;Rossi, Giacomina;Seshadri, Sudha;Andreassen, Ole A.;Ingelsson, Martin;Hiltunen, Mikko;Sleegers, Kristel;Schellenberg, Gerard D.;van Duijn, Cornelia M.;Sims, Rebecca;van der Flier, Wiesje M.;Ruiz, Agustin;Ramirez, Alfredo;Lambert, Jean-Charles
通讯作者：
Lambert, Jean-Charles
影响因子：
4.8
作者：
Huang, Weigang;Barrett, Matthew;Zhang, Qisheng
通讯作者：
Zhang, Qisheng
影响因子：
20.3
作者：
Liu, Ta-Ming;Woyach, Jennifer A.;Johnson, Amy J.
通讯作者：
Johnson, Amy J.
影响因子：
6.8
作者：
Marioni RE;Harris SE;Zhang Q;McRae AF;Hagenaars SP;Hill WD;Davies G;Ritchie CW;Gale CR;Starr JM;Goate AM;Porteous DJ;Yang J;Evans KL;Deary IJ;Wray NR;Visscher PM
通讯作者：
Visscher PM