Properly Substituted Cyclic Bis-(2-bromobenzylidene) Compounds Behaved as Dual p300/CARM1 Inhibitors and Induced Apoptosis in Cancer Cells

Bis-(3-bromo-4-hydroxy)benzylidene cyclic compounds have been reported by us as epigenetic multiple ligands, but different substitutions at the two wings provided analogues with selective inhibition. Since the 1-benzyl-3,5-bis((<i>E</i>)-3-bromobenzylidene)piperidin-4-one <b>3</...

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Main Authors: Rossella Fioravanti, Stefano Tomassi, Elisabetta Di Bello, Annalisa Romanelli, Andrea Maria Plateroti, Rosaria Benedetti, Mariarosaria Conte, Ettore Novellino, Lucia Altucci, Sergio Valente, Antonello Mai
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/25/14/3122
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author Rossella Fioravanti
Stefano Tomassi
Elisabetta Di Bello
Annalisa Romanelli
Andrea Maria Plateroti
Rosaria Benedetti
Mariarosaria Conte
Ettore Novellino
Lucia Altucci
Sergio Valente
Antonello Mai
author_facet Rossella Fioravanti
Stefano Tomassi
Elisabetta Di Bello
Annalisa Romanelli
Andrea Maria Plateroti
Rosaria Benedetti
Mariarosaria Conte
Ettore Novellino
Lucia Altucci
Sergio Valente
Antonello Mai
author_sort Rossella Fioravanti
collection DOAJ
description Bis-(3-bromo-4-hydroxy)benzylidene cyclic compounds have been reported by us as epigenetic multiple ligands, but different substitutions at the two wings provided analogues with selective inhibition. Since the 1-benzyl-3,5-bis((<i>E</i>)-3-bromobenzylidene)piperidin-4-one <b>3</b> displayed dual p300/EZH2 inhibition joined to cancer-selective cell death in a panel of tumor cells and in in vivo xenograft models, we prepared a series of bis((<i>E</i>)-2-bromobenzylidene) cyclic compounds <b>4a</b>–<b>n</b> to test in biochemical (p300, PCAF, SIRT1/2, EZH2, and CARM1) and cellular (NB4, U937, MCF-7, SH-SY5Y) assays. The majority of <b>4a</b>–<b>n</b> exhibited potent dual p300 and CARM1 inhibition, sometimes reaching the submicromolar level, and induction of apoptosis mainly in the tested leukemia cell lines. The most effective compounds in both enzyme and cellular assays carried a 4-piperidone moiety and a methyl (<b>4d</b>), benzyl (<b>4e</b>), or acyl (<b>4k</b>–<b>m</b>) substituent at N1 position. Elongation of the benzyl portion to 2-phenylethyl (<b>4f</b>) and 3-phenylpropyl (<b>4g</b>) decreased the potency of compounds at both the enzymatic and cellular levels, but the activity was promptly restored by introduction of a ketone group into the phenylalkyl substituent (<b>4h</b>–<b>j</b>). Western blot analyses performed in NB4 and MCF-7 cells on selected compounds confirmed their inhibition of p300 and CARM1 through decrease of the levels of acetyl-H3 and acetyl-H4, marks for p300 inhibition, and of H3R17me2, mark for CARM1 inhibition.
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spelling doaj.art-e229a14799334f0dab48062741b9823c2023-11-20T06:13:25ZengMDPI AGMolecules1420-30492020-07-012514312210.3390/molecules25143122Properly Substituted Cyclic Bis-(2-bromobenzylidene) Compounds Behaved as Dual p300/CARM1 Inhibitors and Induced Apoptosis in Cancer CellsRossella Fioravanti0Stefano Tomassi1Elisabetta Di Bello2Annalisa Romanelli3Andrea Maria Plateroti4Rosaria Benedetti5Mariarosaria Conte6Ettore Novellino7Lucia Altucci8Sergio Valente9Antonello Mai10Dipartimento di Chimica e Tecnologie del Farmaco, ‘Sapienza’ Università di Roma, 00185 Roma, ItalyDipartimento di Farmacia, Università di Napoli ‘Federico II’, 80131 Napoli, ItalyDipartimento di Chimica e Tecnologie del Farmaco, ‘Sapienza’ Università di Roma, 00185 Roma, ItalyDipartimento di Chimica e Tecnologie del Farmaco, ‘Sapienza’ Università di Roma, 00185 Roma, ItalyDipartimento di Neuroscienze, Salute Mentale e Organi di Senso–Nesmos, ‘Sapienza’ Università di Roma, 00185 Roma, ItalyDipartimento di Medicina di Precisione, Università degli Studi della Campania Luigi Vanvitelli, 80138 Napoli, ItalyDipartimento di Medicina di Precisione, Università degli Studi della Campania Luigi Vanvitelli, 80138 Napoli, ItalyDipartimento di Farmacia, Università di Napoli ‘Federico II’, 80131 Napoli, ItalyDipartimento di Medicina di Precisione, Università degli Studi della Campania Luigi Vanvitelli, 80138 Napoli, ItalyDipartimento di Chimica e Tecnologie del Farmaco, ‘Sapienza’ Università di Roma, 00185 Roma, ItalyDipartimento di Chimica e Tecnologie del Farmaco, ‘Sapienza’ Università di Roma, 00185 Roma, ItalyBis-(3-bromo-4-hydroxy)benzylidene cyclic compounds have been reported by us as epigenetic multiple ligands, but different substitutions at the two wings provided analogues with selective inhibition. Since the 1-benzyl-3,5-bis((<i>E</i>)-3-bromobenzylidene)piperidin-4-one <b>3</b> displayed dual p300/EZH2 inhibition joined to cancer-selective cell death in a panel of tumor cells and in in vivo xenograft models, we prepared a series of bis((<i>E</i>)-2-bromobenzylidene) cyclic compounds <b>4a</b>–<b>n</b> to test in biochemical (p300, PCAF, SIRT1/2, EZH2, and CARM1) and cellular (NB4, U937, MCF-7, SH-SY5Y) assays. The majority of <b>4a</b>–<b>n</b> exhibited potent dual p300 and CARM1 inhibition, sometimes reaching the submicromolar level, and induction of apoptosis mainly in the tested leukemia cell lines. The most effective compounds in both enzyme and cellular assays carried a 4-piperidone moiety and a methyl (<b>4d</b>), benzyl (<b>4e</b>), or acyl (<b>4k</b>–<b>m</b>) substituent at N1 position. Elongation of the benzyl portion to 2-phenylethyl (<b>4f</b>) and 3-phenylpropyl (<b>4g</b>) decreased the potency of compounds at both the enzymatic and cellular levels, but the activity was promptly restored by introduction of a ketone group into the phenylalkyl substituent (<b>4h</b>–<b>j</b>). Western blot analyses performed in NB4 and MCF-7 cells on selected compounds confirmed their inhibition of p300 and CARM1 through decrease of the levels of acetyl-H3 and acetyl-H4, marks for p300 inhibition, and of H3R17me2, mark for CARM1 inhibition.https://www.mdpi.com/1420-3049/25/14/3122epigeneticshistone acetylationhistone methylationdrug discoverymulti-target agents
spellingShingle Rossella Fioravanti
Stefano Tomassi
Elisabetta Di Bello
Annalisa Romanelli
Andrea Maria Plateroti
Rosaria Benedetti
Mariarosaria Conte
Ettore Novellino
Lucia Altucci
Sergio Valente
Antonello Mai
Properly Substituted Cyclic Bis-(2-bromobenzylidene) Compounds Behaved as Dual p300/CARM1 Inhibitors and Induced Apoptosis in Cancer Cells
Molecules
epigenetics
histone acetylation
histone methylation
drug discovery
multi-target agents
title Properly Substituted Cyclic Bis-(2-bromobenzylidene) Compounds Behaved as Dual p300/CARM1 Inhibitors and Induced Apoptosis in Cancer Cells
title_full Properly Substituted Cyclic Bis-(2-bromobenzylidene) Compounds Behaved as Dual p300/CARM1 Inhibitors and Induced Apoptosis in Cancer Cells
title_fullStr Properly Substituted Cyclic Bis-(2-bromobenzylidene) Compounds Behaved as Dual p300/CARM1 Inhibitors and Induced Apoptosis in Cancer Cells
title_full_unstemmed Properly Substituted Cyclic Bis-(2-bromobenzylidene) Compounds Behaved as Dual p300/CARM1 Inhibitors and Induced Apoptosis in Cancer Cells
title_short Properly Substituted Cyclic Bis-(2-bromobenzylidene) Compounds Behaved as Dual p300/CARM1 Inhibitors and Induced Apoptosis in Cancer Cells
title_sort properly substituted cyclic bis 2 bromobenzylidene compounds behaved as dual p300 carm1 inhibitors and induced apoptosis in cancer cells
topic epigenetics
histone acetylation
histone methylation
drug discovery
multi-target agents
url https://www.mdpi.com/1420-3049/25/14/3122
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