Article
Chemistry, Organic
Wei Guo, Zhen Xie, Liuhuan Cai, Gongping Liu, Ling Deng, Weijie Mei, Xiaoying Zou, Yumei Zhong, Xiaoya Zhuo, Lvyin Zheng, Xiaolin Fan
Summary: A new photocatalyst-free visible-light-enhanced strategy for the synthesis of pyrazolo[1,5-a][1,3,5]triazine-2,4-diamines via the formation of electron donor-acceptor (EDA) complexes has been reported. The reaction involves three C-N bond formations in a one-pot protocol without the need for external transition metals, oxidants, bases, or ligands. This efficient methodology provides potential synthetic applications in drug research and development.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
M. S. Raghu, K. Yogesh Kumar, M. K. Prashanth, V. S. Anusuya Devi, Fahd Alharethy, Byong-Hun Jeon
Summary: We developed a series of pyrazolo[1,5-a][1,3,5]triazine derivatives (5a-l) through condensation, intramolecular ring annulation, and acylation processes. These compounds exhibited moderate to substantial antioxidant activity and were effective in inhibiting LOX and XO enzyme activity. Particularly, compound 5f showed excellent antioxidant and enzyme inhibition abilities. Molecular docking studies further confirmed the correlation between docking scores and experimental antioxidant and enzyme inhibition activity.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
Aisha A. Alsfouk, Hanan M. Alshibl, Najla A. Altwaijry, Bshra A. Alsfouk, Ebtehal S. Al-Abdullah
Summary: Novel derivatives of seliciclib with improved potency, metabolic stability, aqueous solubility, and anti-proliferative activity were synthesized in this study. These derivatives showed a novel CDKs selectivity profile, with one derivative demonstrating potent and selective inhibition of CDK9 with lower metabolic clearance, higher aqueous solubility, and increased cytotoxicity in androgen-independent prostate cancer cells compared to seliciclib.
MONATSHEFTE FUR CHEMIE
(2021)
Article
Biochemistry & Molecular Biology
Jonathan Elie, Corinne Fruit, Thierry Besson
Summary: This paper describes a convenient sequential one-pot approach for the synthesis of a series of 14 pyrazolo[1,5-a][1,3,5]triazines, with advantages in terms of yields, reaction times, and convenient gram scale synthesis compared to traditional methods. The combination of efficient heating using dielectric microwave heating and sequential one-pot reactions eliminates the need for laborious work-up and purification of intermediate compounds, allowing for sustainable synthesis processes.
Article
Chemistry, Medicinal
Xiaofei Liang, Maoqing Deng, Fengming Zou, Ziping Qi, Chun Wang, Juan Liu, Qingwang Liu, Beilei Wang, Shuang Qi, Juan Ge, Hongwei Yu, Aoli Wang, Qingsong Liu, Jing Liu
Summary: A potent PI3Kγ/6 dual inhibitor 15u (IHMT-PI3K-455) was discovered through structure-activity relationship optimization. It demonstrated strong efficacy in vitro and in vivo, as well as the ability to repolarize macrophage phenotypes.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Mateusz Kciuk, Somdutt Mujwar, Anna Szymanowska, Beata Marciniak, Karol Bukowski, Mariusz Mojzych, Renata Kontek
Summary: In this study, MM compounds exhibited anticancer activity at low concentrations without cytotoxicity in normal cells. The mechanism of action may involve the inhibition of BTK kinase, the AKT-mTOR pathway, and PD1-PD-L1 interaction. These sulfonamide derivatives could be a potential source of new anticancer drugs after optimization.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Mateusz Kciuk, Somdutt Mujwar, Beata Marciniak, Adrianna Gielecinska, Karol Bukowski, Mariusz Mojzych, Renata Kontek
Summary: Pyrazolo[4,3-e]tetrazolo[1,5-b][1,2,4]triazine sulfonamides are a new group of heterocyclic compounds with broad biological activities, including anticancer properties. In this study, the investigated compounds showed antiproliferative activity against BxPC-3 and PC-3 cancer cells at micromolar concentrations. The compounds induced significant DNA damage in cancer cells but not in normal human lung fibroblasts. The study also evaluated the impact of MM compounds on DNA damage response factors using molecular docking and molecular dynamics simulation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Medicinal
Michael Moir, Samuel Lane, Andrew P. Montgomery, David Hibbs, Mark Connor, Michael Kassiou
Summary: The development of selective CB2 receptor agonists is a promising therapeutic approach for inflammatory diseases. Through structure-activity relationship studies, a potent and selective pyrazolo-[2,3-e]-[1,2,4]-triazine agonist has been discovered, with key structural features of the linkage group being important for its activity.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2021)
Article
Chemistry, Organic
Evgenia S. Velihina, Nataliya V. Obernikhina, Stepan G. Pilyo, Oleksiy D. Kachkovsky, Volodymyr S. Brovarets
Summary: The study examines the effects of extended phenyl substituents on the electron structure and anticancer activity of pyrazolo[1,5-a][1,3,5]triazines, suggesting that the introduction of phenyl substituents may increase the likelihood of interaction with protein molecules.
CURRENT ORGANIC CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Yun Chen, Gang Bai, Yan Li, Yi Ning, Sufen Cao, Jinpei Zhou, Jian Ding, Huibin Zhang, Hua Xie, Wenhu Duan
Summary: The internal tandem duplications of FLT3 (FLT3-ITD) is a common occurrence in AML cases and inhibiting it using pyrazolo[1,5-a]pyrimidine derivatives could be a promising treatment approach. Compounds 17 and 19 showed potent FLT3-ITD activities and excellent antiproliferative activities against AML cell lines, making them potential candidates for further development as FLT3-ITD inhibitors in AML therapy.
BIOORGANIC & MEDICINAL CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Karol Bukowski, Beata Marciniak, Mateusz Kciuk, Somdutt Mujwar, Mariusz Mojzych, Renata Kontek
Summary: The study evaluates the anticancer potential of three synthesized pyrazolo[4,3-e]tetrazolo[1,5-b][1,2,4]triazine sulfonamides against human cancer cells. The sulfonamides showed pro-apoptotic activity by affecting mitochondrial function, cell membrane structure, and cell cycle progression. Computational studies suggested that one of the sulfonamides had the strongest binding affinity to CDK enzymes. The compounds exhibited strong pro-apoptotic and pro-oxidative properties, suggesting their potential as anticancer agents.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Hossam R. Elgiushy, Sameh H. Mohamed, Heba Taha, Hussein Sawaf, Zeinab Hassan, Nageh A. Abou-Taleb, Eman M. El-labbad, Ashraf S. Hassan, Khaled A. M. Abouzid, Sherif F. Hammad
Summary: A series of new 2-arylamino-5,7-disubstituted-N-aryl-pyrazolo[1,5-a]pyrimidine-3-carboxamide derivatives were designed and synthesized. Compound 7a exhibited promising antitumor activity by inhibiting CDK1 and inducing apoptosis in colorectal cancer cells and human lung fibroblast cells.
BIOORGANIC CHEMISTRY
(2022)
Article
Chemistry, Medicinal
Yi Gong, Feng-Xu Wu, Ming-Shu Wang, Hong-Chuang Xu, Lin-Sheng Zhuo, Guang-Fu Yang, Wei Huang
Summary: This study designed a series of compounds to overcome clinical resistance caused by extracellular domain mutations. Compound 5n showed the most potent anti-tumor activity and favorable pharmacokinetic properties.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Junbo Hu, Yanli Zhang, Na Tang, Yanju Lu, Peng Guo, Ziming Huang
Summary: The study synthesized novel 1,3,5-triazine derivatives as potent inhibitors of cervical cancer, showing significant inhibitory activity against PI3K/mTOR and class I PI3K isoforms, especially PI3K alpha. Compound 6 h demonstrated the greatest potency against HeLa cells by inducing apoptosis and cell cycle arrest. It also showed promising results in a tumour xenograft mouse model by reducing tumour volume and inhibiting the PI3K/Akt/mTOR signalling cascade in xenograft tissues.
BIOORGANIC & MEDICINAL CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Karol Bukowski, Beata Marciniak, Mateusz Kciuk, Mariusz Mojzych, Renata Kontek
Summary: This study evaluated for the first time the cytotoxicity and genotoxicity of newly synthesized pyrazolo[4,3-e]tetrazolo[1,5-b][1,2,4]triazine sulfonamides in human tumor cell lines. The tested compounds exhibited strong anticancer properties and induced significant DNA damage in exposed cells at low concentrations.
Article
Chemistry, Multidisciplinary
Guillem Pascual-Pasto, Helena Castillo-Ecija, Nora Unceta, Rosario Aschero, Claudia Resa-Pares, Alberto Gomez-Caballero, Monica Vila-Ubach, Oscar Munoz-Aznar, Mariona Sunol, Victor Burgueno, Soledad Gomez-Gonzalez, Alejandro Sosnik, Manuel Ibarra, Paula Schaiquevich, Enrique de Alava, Oscar M. Tirado, Jaume Mora, Angel M. Carcaboso
Summary: Secreted protein acidic and rich in cysteine (SPARC) promotes the accumulation of nanoparticle albumin-bound (nab)paclitaxel in pediatric sarcomas through its high affinity to albumin.
JOURNAL OF CONTROLLED RELEASE
(2022)
Article
Respiratory System
Laurent Meijer, Genevieve Hery-Arnaud, Cyril Leven, Emmanuel Nowak, Sophie Hillion, Yves Renaudineau, Isabelle Durieu, Raphael Chiron, Anne Prevotat, Isabelle Fajac, Dominique Hubert, Marlene Murris-Espin, Sandrine Huge, Isabelle Danner-Boucher, Bruno Ravoninjatovo, Sylvie Leroy, Julie Macey, Thierry Urban, Gilles Rault, Dominique Mottier, Rozenn Le Berre
Summary: A study was conducted to evaluate the safety and effects of roscovitine in patients with Cushing disease. The results showed that roscovitine was relatively safe and well-tolerated, but did not show significant efficacy in treating the disease. The variability in pharmacokinetics of roscovitine may have contributed to the lack of effectiveness.
JOURNAL OF CYSTIC FIBROSIS
(2022)
Article
Chemistry, Medicinal
Tania Tahtouh, Emilie Durieu, Benoit Villiers, Celine Bruyere, Thu Lan Nguyen, Xavier Fant, Kwang H. Ahn, Leepakshi Khurana, Emmanuel Deau, Mattias F. Lindberg, Elodie Severe, Frederic Miege, Didier Roche, Emmanuelle Limanton, Jean-Martial L'helgoual'ch, Guillaume Burgy, Solene Guiheneuf, Yann Herault, Debra A. Kendall, Francois Carreaux, Jean-Pierre Bazureau, Laurent Meijer
Summary: Leucettines, derived from marine sponge alkaloid Leucettamine B, have potential therapeutic applications for Alzheimer's disease, Down syndrome, diabetes, and other diseases. There is a correlation between the inhibition of specific kinase targets and cellular effects.
JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Article
Clinical Neurology
B. Souchet, M. Audrain, Y. Gu, M. F. Lindberg, N. S. Orefice, E. Rey, N. Cartier, N. Janel, L. Meijer, Jerome Braudeau
Summary: The presence of both soluble forms of Aβ 342 and p-tau may be responsible for the onset of mild cognitive impairment (MCI) in Alzheimer's disease (AD).
JPAD-JOURNAL OF PREVENTION OF ALZHEIMERS DISEASE
(2022)
Article
Biochemistry & Molecular Biology
Daniel J. Garcia-Dominguez, Nabil Hajji, Roser Lopez-Alemany, Sara Sanchez-Molina, Elisabet Figuerola-Bou, Francisco J. Moron Civanto, Santiago Rello-Varona, Eduardo Andres-Leon, Adrian Benito, Hector C. Keun, Jaume Mora, Oscar M. Tirado, Enrique de Alava, Lourdes Hontecillas-Prieto
Summary: The study evaluated the effects of a selective G9a histone methyltransferase inhibitor (BIX01294) on the metastatic process of Ewing sarcoma (EWS). The results showed that overexpression of G9a in EWS tumors is associated with poor prognosis. Furthermore, the inhibition of G9a with BIX01294 disrupted several steps of metastasis in vitro and reduced tumor growth and metastases in mouse models. The study also identified the sialidase NEU1 as a direct target and effector of G9a in the metastatic process of EWS.
Article
Endocrinology & Metabolism
Camilla Cristalli, Maria Cristina Manara, Sergio Valente, Evelin Pellegrini, Alberto Bavelloni, Alessandra De Feo, William Blalock, Elisabetta Di Bello, David Pineyro, Angelika Merkel, Manel Esteller, Oscar M. Tirado, Antonello Mai, Katia Scotlandi
Summary: This study found that the novel nonnucleoside DNMT inhibitor MC3343 can specifically deplete DNMT1 in Ewing sarcoma through a mechanism independent of DNA methylation, leading to perturbations in the cell cycle and DNA damage. The depletion of DNMT1 activates p53-dependent signaling and apoptosis in p53wt cells, while in p53 mutated cells, it leads to persistent micronuclei and increased DNA instability. Treatment with MC3343 also enhances the efficacy of other DNA damaging agents, suggesting its potential as an adjuvant therapy for Ewing sarcoma.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Cell Biology
Priyanka Gupta, Keehn Strange, Rahul Telange, Ailan Guo, Heather Hatch, Amin Sobh, Jonathan Elie, Angela M. Carter, John Totenhagen, Chunfeng Tan, Yogesh A. Sonawane, Jiri Neuzil, Amarnath Natarajan, Ashley J. Ovens, Jonathan S. Oakhill, Thorsten Wiederhold, Karel Pacak, Hans K. Ghayee, Laurent Meijer, Sushanth Reddy, James A. Bibb
Summary: Metabolic dysfunction mutations can lead to cancer. Loss of SDHB triggers a signaling cascade that disrupts energy sensing and promotes cancer progression.
Correction
Chemistry, Multidisciplinary
Luca Mologni, Sebastien Tardy, Alfonso Zambon, Alexandre Orsato, Cedric Schneider, William H. Bisson, Monica Ceccon, Michela Viltadi, David Goyard, Pierre Garcia, Joseph D'Attoma, Sara Pannilunghi, Vito Vece, Jerome Bertho, David Gueyrard, Peter Goekjian, Leonardo Scapozza, Carlo Gambacorti-Passerini
Review
Biochemistry & Molecular Biology
Yashoda Krishna Sunkari, Laurent Meijer, Marc Flajolet
Summary: Protein kinases are essential in biology and their deregulation is linked to various diseases. However, the high conservation of ATP-binding sites among kinases makes it challenging to develop highly specific inhibitors. In the context of neurodegenerative diseases, CK1 and other kinases have been implicated. Currently, there are no specific regulators for CK1, and known inhibitors target the ATP-binding site. DNA-encoded library technology may be a promising approach to discover allosteric modulators instead of ATP competitors.
FRONTIERS IN MOLECULAR BIOSCIENCES
(2022)
Article
Pharmacology & Pharmacy
Guillem Pascual-Pasto, Claudia Resa-Pares, Helena Castillo-Ecija, Rosario Aschero, Merce Baulenas-Farres, Monica Vila-Ubach, Victor Burgueno, Leire Balaguer-Lluna, Maria Cuadrado-Vilanova, Nagore G. Olaciregui, Nuria Martinez-Velasco, Sara Perez-Jaume, Enrique de Alava, Oscar M. Tirado, Cinzia Lavarino, Jaume Mora, Angel M. Carcaboso
Summary: Nanoparticle albumin-bound paclitaxel (nab-paclitaxel) has strong preclinical anticancer activity in pediatric solid tumors, but the responses in clinical trials have been modest. This study aimed to find a biomarker-based approach to select the right patients for nab-paclitaxel treatment. The efficacy of nab-paclitaxel was assessed in patient-derived xenografts (PDX) and several predictive factors of response were identified, including the expression of SPARC and Bcl-2 family proteins. Inhibition of Bcl-2 was found to improve the activity of nab-paclitaxel in Bcl-2-expressing Ewing sarcoma.
BIOCHEMICAL PHARMACOLOGY
(2023)
Article
Chemistry, Medicinal
Mattias F. Lindberg, Emmanuel Deau, Jonas Arfwedson, Nicolas George, Pascal George, Patricia Alfonso, Ana Corrionero, Laurent Meijer
Summary: This study evaluates the kinase inhibitory activity of a library of DYRKs/CLKs inhibitors and finds a diverse range of potencies and selectivities among these inhibitors, highlighting the challenges of targeting kinases in this area of research. The use of a panel of inhibitors is suggested for studying the functions of these kinases in cellular processes.
JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Article
Chemistry, Medicinal
Emmanuel Deau, Mattias F. F. Lindberg, Freideiric Miege, Didier Roche, Nicolas George, Pascal George, Andreas Kra''mer, Stefan Knapp, Laurent Meijer
Summary: Dual-specificity,tyrosine phosphorylation-regulated kinases (DYRKs) and cdc2-like kinases (CLKs) have been identified as important targets for various pathologies. In this study, a family of DYRK/CLK inhibitors called Leucettinibs, derived from Leucettines and Leucettamine B, were synthesized and characterized. These inhibitors showed subnanomolar IC50 on DYRK1A and demonstrated potential for therapeutic drug development. Kinase-inactive isomers, iso-Leucettinibs, were also synthesized as suitable negative control compounds. Leucettinibs were found to inhibit DYRK1A substrate phosphorylation in cells.
JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Correction
Clinical Neurology
B. Souchet, M. Audrain, Y. Gu, M. F. Lindberg, N. S. Orefice, E. Rey, N. Cartier, N. Janel, L. Meijer, Jerome Braudeau
JPAD-JOURNAL OF PREVENTION OF ALZHEIMERS DISEASE
(2023)
Meeting Abstract
Oncology
Sara Sanchez Serra, Mariona Chicon Bosch, Judith Besalu Velazquez, Susana Maqueda Marcos, Paola Monaco, Laura Santana Viera, Roser Lopez Alemany, Oscar M. Tirado
Meeting Abstract
Oncology
S. Sanchez-Serra, M. Chicon-Bosch, S. Maqueda-Marcos, P. Monaco, L. Santana-Viera, R. Lopez-Alemany, O. M. Tirado
EUROPEAN JOURNAL OF CANCER
(2022)