1
|
Eckhardt KS, Münzel T, Gräb J, Berg T. Stafiba: A STAT5-Selective Small-Molecule Inhibitor. Chembiochem 2023; 24:e202200553. [PMID: 36300584 PMCID: PMC10099813 DOI: 10.1002/cbic.202200553] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/26/2022] [Indexed: 01/05/2023]
Abstract
The transcription factors STAT5a and STAT5b are constitutively active in many human tumors. Combined inhibition of both STAT5 proteins is a valuable approach with promising applications in tumor biology. We recently reported resorcinol bisphosphate as a moderately active inhibitor of the protein-protein interaction domains, the SH2 domains, of both STAT5a and STAT5b. Here, we describe the development of resorcinol bisphosphate to Stafiba, a phosphatase-stable inhibitor of STAT5a and STAT5b with activity in the low micromolar concentration range. Our data provide insights into the structure-activity relationships of resorcinol bisphosphates and the corresponding bisphosphonates for use as inhibitors of both STAT5a and STAT5b.
Collapse
Affiliation(s)
- Katrin S Eckhardt
- Leipzig University, Institute of Organic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Theresa Münzel
- Leipzig University, Institute of Organic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Julian Gräb
- Leipzig University, Institute of Organic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Thorsten Berg
- Leipzig University, Institute of Organic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| |
Collapse
|
2
|
Müller-Klieser D, Berg T. Asymmetrically Substituted m-Terphenyl Phosphates Inhibit the Transcription Factor STAT5a. Chembiochem 2021; 23:e202100603. [PMID: 34905258 PMCID: PMC9303812 DOI: 10.1002/cbic.202100603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/13/2021] [Indexed: 11/15/2022]
Abstract
We recently presented Stafia‐1 as the first chemical entity that inhibits the transcription factor STAT5a with selectivity over the highly homologous STAT5b. Stafia‐1, which was identified from a series of symmetrically substituted m‐terphenyl phosphates, binds to the interface between the SH2 domain and the linker domain of STAT5a. Here, we outline a synthetic strategy for the synthesis of asymmetrically substituted m‐terphenyl phosphates, which can be tailored to address their asymmetric STAT5a binding site in a more specific manner. The asymmetrically substituted m‐terphenyl phosphate with the highest activity against STAT5a was converted to a phosphatase‐stable monofluoromethylene phosphonate. The synthetic methodology and activity analysis described here provide first insights into the structure‐activity relationships of m‐terphenyl phosphates for use as selective STAT5a inhibitors.
Collapse
Affiliation(s)
- Daniel Müller-Klieser
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| | - Thorsten Berg
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| |
Collapse
|
3
|
Polomski M, Brachet-Botineau M, Juen L, Viaud-Massuard MC, Gouilleux F, Prié G. Inhibitors Targeting STAT5 Signaling in Myeloid Leukemias: New Tetrahydroquinoline Derivatives with Improved Antileukemic Potential. ChemMedChem 2021; 16:1034-1046. [PMID: 33275308 DOI: 10.1002/cmdc.202000841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Indexed: 01/23/2023]
Abstract
Signal transducers and activators of transcription 5A and 5B (STAT5A and STAT5B) are two closely related STAT family members that are crucial downstream effectors of tyrosine kinase oncoproteins such as FLT3-ITD in acute myeloid leukemia (AML) and BCR-ABL in chronic myeloid leukemia (CML). We recently developed and reported the synthesis of a first molecule called 17 f that selectively inhibits STAT5 signaling in myeloid leukemia cells and overcomes their resistance to chemotherapeutic agents. To improve the antileukemic effect of 17 f, we synthesized ten analogs of this molecule and analyzed their impact on cell growth, survival, chemoresistance and STAT5 signaling. Two compounds, 7 a and 7 a', were identified as having similar or higher antileukemic effects in various AML and CML cell lines. Both molecules were found to be more effective than 17 f at inhibiting STAT5 activity/expression and suppressing the chemoresistance of CML.
Collapse
Affiliation(s)
- Marion Polomski
- Equipe IMT "Innovation Moléculaire et Thérapeutique" - GICC EA7501, Université de Tours-Labex SYNORG, Faculté de Pharmacie, 31 av. Monge, 37200, Tours, France
| | - Marie Brachet-Botineau
- Equipe LNOx "Niche Leucémique & Métabolisme Oxydatif" - GICC ERL 7001 CNRS, Université de Tours, Faculté de Médecine, Bâtiment Dutrochet, 10bis bvd Tonnellé, 37032, Tours, France
| | - Ludovic Juen
- Equipe IMT "Innovation Moléculaire et Thérapeutique" - GICC EA7501, Université de Tours-Labex SYNORG, Faculté de Pharmacie, 31 av. Monge, 37200, Tours, France
| | - Marie-Claude Viaud-Massuard
- Equipe IMT "Innovation Moléculaire et Thérapeutique" - GICC EA7501, Université de Tours-Labex SYNORG, Faculté de Pharmacie, 31 av. Monge, 37200, Tours, France
| | - Fabrice Gouilleux
- Equipe LNOx "Niche Leucémique & Métabolisme Oxydatif" - GICC ERL 7001 CNRS, Université de Tours, Faculté de Médecine, Bâtiment Dutrochet, 10bis bvd Tonnellé, 37032, Tours, France
| | - Gildas Prié
- Equipe IMT "Innovation Moléculaire et Thérapeutique" - GICC EA7501, Université de Tours-Labex SYNORG, Faculté de Pharmacie, 31 av. Monge, 37200, Tours, France
| |
Collapse
|
4
|
Seidel T, Wieder O, Garon A, Langer T. Applications of the Pharmacophore Concept in Natural Product inspired Drug Design. Mol Inform 2020; 39:e2000059. [PMID: 32578959 PMCID: PMC7685156 DOI: 10.1002/minf.202000059] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/24/2020] [Indexed: 12/16/2022]
Abstract
Pharmacophore-based techniques are nowadays an important part of many computer-aided drug design workflows and have been successfully applied for tasks such as virtual screening, lead optimization and de novo design. Natural products, on the other hand, can serve as a valuable source for unconventional molecular scaffolds that stimulate ideas for novel lead compounds in a more diverse chemical space that does not follow the rules of traditional medicinal chemistry. The first part of this review provides a brief introduction to the pharmacophore concept, the methods for pharmacophore model generation, and their applications. The second, concluding part, presents examples for recent, pharmacophore method related research in the field of natural product chemistry. The selected examples show, that pharmacophore-based methods which get mainly applied on synthetic drug-like molecules work equally well in the realm of natural products and thus can serve as a valuable tool for researchers in the field of natural product inspired drug design.
Collapse
Affiliation(s)
- Thomas Seidel
- Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141090ViennaAustria
| | - Oliver Wieder
- Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141090ViennaAustria
| | - Arthur Garon
- Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141090ViennaAustria
| | - Thierry Langer
- Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141090ViennaAustria
| |
Collapse
|
5
|
Gräb J, Berg T. The Selectivity of Fosfosal for STAT5b over STAT5a is Mediated by Arg566 in the Linker Domain. Chembiochem 2020; 21:2264-2267. [PMID: 32227557 PMCID: PMC7496286 DOI: 10.1002/cbic.202000111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/29/2020] [Indexed: 12/17/2022]
Abstract
Fosfosal is the O-phosphorylated derivative of salicylic acid, with documented clinical use as a prodrug for the treatment of inflammatory diseases. We recently discovered that fosfosal itself inhibits the protein-protein interaction domain, the SH2 domain, of the tumor-related transcription factor STAT5b. Here, we demonstrate that fosfosal is selective for STAT5b over its close homologue STAT5a. This selectivity is mediated by the STAT5b residue Arg566, located in the SH2 domain-adjacent linker domain. Our data provide further evidence for the role of the STAT linker domain in determining the activity of small molecules against the SH2 domain. We present a refined binding model for fosfosal and STAT5b, which can serve as the basis for the development of fosfosal-based STAT5b inhibitors.
Collapse
Affiliation(s)
- Julian Gräb
- Leipzig University, Institute of Organic ChemistryJohannisallee 2904103LeipzigGermany
| | - Thorsten Berg
- Leipzig University, Institute of Organic ChemistryJohannisallee 2904103LeipzigGermany
| |
Collapse
|
6
|
Natarajan K, Müller-Klieser D, Rubner S, Berg T. Stafia-1: a STAT5a-Selective Inhibitor Developed via Docking-Based Screening of in Silico O-Phosphorylated Fragments. Chemistry 2019; 26:148-154. [PMID: 31503360 PMCID: PMC6973011 DOI: 10.1002/chem.201904147] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Indexed: 01/27/2023]
Abstract
We present a new approach for the identification of inhibitors of phosphorylation-dependent protein-protein interaction domains, in which phenolic fragments are adapted by in silico O-phosphorylation before docking-based screening. From a database of 10 369 180 compounds, we identified 85 021 natural product-derived phenolic fragments, which were virtually O-phosphorylated and screened for in silico binding to the STAT3 SH2 domain. Nine screening hits were then synthesized, eight of which showed a degree of in vitro inhibition of STAT3. After analysis of its selectivity profile, the most potent inhibitor was then developed to Stafia-1, the first small molecule shown to preferentially inhibit the STAT family member STAT5a over the close homologue STAT5b. A phosphonate prodrug based on Stafia-1 inhibited STAT5a with selectivity over STAT5b in human leukemia cells, providing the first demonstration of selective in vitro and intracellular inhibition of STAT5a by a small-molecule inhibitor.
Collapse
Affiliation(s)
- Kalaiselvi Natarajan
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| | - Daniel Müller-Klieser
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| | - Stefan Rubner
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| | - Thorsten Berg
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| |
Collapse
|
7
|
Berg A, Sperl B, Berg T. ATP Inhibits the Transcription Factor STAT5b. Chembiochem 2019; 20:2227-2231. [PMID: 30985989 DOI: 10.1002/cbic.201900173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Indexed: 12/14/2022]
Abstract
Although naturally occurring low-molecular-weight compounds have many known roles within the cell, these do not usually involve the direct inhibition of protein-protein interactions. Based on the results of high-throughput screening of a library of bioactive compounds and neurotransmitters, we report here that the four nucleoside triphosphates ATP, GTP, CTP and UTP inhibit the SH2 domain of the tumor-related transcription factor STAT5b. ATP and GTP are the most active nucleoside triphosphates and show specificity for STAT5b over STAT5a, STAT3, STAT6 and the p53-binding protein HDM2. As the inhibition constant of ATP against STAT5b is significantly lower than published values for the intracellular ATP concentration, our data suggest that ATP might inhibit the protein-protein interactions of STAT5b in living cells.
Collapse
Affiliation(s)
- Angela Berg
- Institute of Organic Chemistry, University of Leipzig, Johannisallee 29, 04103, Leipzig, Germany
| | - Bianca Sperl
- Department of Molecular Biology, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152, Martinsried, Germany
| | - Thorsten Berg
- Institute of Organic Chemistry, University of Leipzig, Johannisallee 29, 04103, Leipzig, Germany
| |
Collapse
|
8
|
Depken C, Krätzschmar F, Rieger R, Rode K, Breder A. Photocatalytic Aerobic Phosphatation of Alkenes. Angew Chem Int Ed Engl 2018; 57:2459-2463. [DOI: 10.1002/anie.201711599] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 12/05/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Christian Depken
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Felix Krätzschmar
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Rene Rieger
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Katharina Rode
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Alexander Breder
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| |
Collapse
|
9
|
Depken C, Krätzschmar F, Rieger R, Rode K, Breder A. Photokatalytische aerobe Phosphatierung von Alkenen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711599] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christian Depken
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Felix Krätzschmar
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Rene Rieger
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Katharina Rode
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Alexander Breder
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| |
Collapse
|
10
|
Rondanin R, Simoni D, Maccesi M, Romagnoli R, Grimaudo S, Pipitone RM, Meli M, Cascio A, Tolomeo M. Effects of Pimozide Derivatives on pSTAT5 in K562 Cells. ChemMedChem 2017; 12:1183-1190. [PMID: 28657677 DOI: 10.1002/cmdc.201700234] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/26/2017] [Indexed: 11/10/2022]
Abstract
STAT5 is a transcription factor, a member of the STAT family of signaling proteins. STAT5 is involved in many types of cancer, including chronic myelogenous leukemia (CML), in which this protein is found constitutively activated as a consequence of BCR-ABL expression. The neuroleptic drug pimozide was recently reported to act as an inhibitor of STAT5 phosphorylation and is capable of inducing apoptosis in CML cells in vitro. Our research group has synthesized simple derivatives of pimozide with cytotoxic activity and that are able to decrease the levels of phosphorylated STAT5. In this work we continued the search for novel STAT5 inhibitors, synthesizing compounds in which the benzoimidazolinone ring of pimozide is either maintained or modified, in order to obtain further structure-activity relationship information for this class of STAT5 inhibitors. Two compounds of the series showed potent cytotoxic activity against BCR-ABL-positive and pSTAT5-overexpressing K562 cells and were able to markedly decrease the levels of phosphorylated STAT5.
Collapse
Affiliation(s)
- Riccardo Rondanin
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17, 44121, Ferrara, Italy
| | - Daniele Simoni
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17, 44121, Ferrara, Italy
| | - Martina Maccesi
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17, 44121, Ferrara, Italy
| | - Romeo Romagnoli
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17, 44121, Ferrara, Italy
| | - Stefania Grimaudo
- Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, via del Vespro 129, 90127, Palermo, Italy
| | - Rosaria Maria Pipitone
- Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, via del Vespro 129, 90127, Palermo, Italy
| | - Maria Meli
- Dipartimento di Scienze per la Promozione della Salute e Materno Infantile, Università di Palermo, via del Vespro 129, 90127, Palermo, Italy
| | - Antonio Cascio
- Dipartimento di Scienze per la Promozione della Salute e Materno Infantile, Università di Palermo, via del Vespro 129, 90127, Palermo, Italy
| | - Manlio Tolomeo
- Dipartimento di Scienze per la Promozione della Salute e Materno Infantile, Centro Interdipartimentale di Ricerca in Oncologia Clinica, Università di Palermo, via del Vespro 129, 902127, Palermo, Italy
| |
Collapse
|
11
|
Langenfeld F, Guarracino Y, Arock M, Trouvé A, Tchertanov L. How Intrinsic Molecular Dynamics Control Intramolecular Communication in Signal Transducers and Activators of Transcription Factor STAT5. PLoS One 2015; 10:e0145142. [PMID: 26717567 PMCID: PMC4696835 DOI: 10.1371/journal.pone.0145142] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 12/01/2015] [Indexed: 01/12/2023] Open
Abstract
Signal Transducer and Activator of Transcription STAT5 is a key mediator of cell proliferation, differentiation and survival. While STAT5 activity is tightly regulated in normal cells, its constitutive activation directly contributes to oncogenesis and is associated with a broad range of hematological and solid tumor cancers. Therefore the development of compounds able to modulate pathogenic activation of this protein is a very challenging endeavor. A crucial step of drug design is the understanding of the protein conformational features and the definition of putative binding site(s) for such modulators. Currently, there is no structural data available for human STAT5 and our study is the first footprint towards the description of structure and dynamics of this protein. We investigated structural and dynamical features of the two STAT5 isoforms, STAT5a and STAT5b, taken into account their phosphorylation status. The study was based on the exploration of molecular dynamics simulations by different analytical methods. Despite the overall folding similarity of STAT5 proteins, the MD conformations display specific structural and dynamical features for each protein, indicating first, sequence-encoded structural properties and second, phosphorylation-induced effects which contribute to local and long-distance structural rearrangements interpreted as allosteric event. Further examination of the dynamical coupling between distant sites provides evidence for alternative profiles of the communication pathways inside and between the STAT5 domains. These results add a new insight to the understanding of the crucial role of intrinsic molecular dynamics in mediating intramolecular signaling in STAT5. Two pockets, localized in close proximity to the phosphotyrosine-binding site and adjacent to the channel for communication pathways across STAT5, may constitute valid targets to develop inhibitors able to modulate the function-related communication properties of this signaling protein.
Collapse
Affiliation(s)
- Florent Langenfeld
- Laboratoire de Biologie et Pharmacologie Appliquée Ecole Normale Supérieure de Cachan, CNRS, Université Paris-Saclay, Cachan, France
- Centre de Mathématiques et de Leurs applications, Ecole Normale Supérieure de Cachan, CNRS, Université Paris-Saclay, Cachan, France
| | - Yann Guarracino
- Laboratoire de Biologie et Pharmacologie Appliquée Ecole Normale Supérieure de Cachan, CNRS, Université Paris-Saclay, Cachan, France
| | - Michel Arock
- Laboratoire de Biologie et Pharmacologie Appliquée Ecole Normale Supérieure de Cachan, CNRS, Université Paris-Saclay, Cachan, France
| | - Alain Trouvé
- Centre de Mathématiques et de Leurs applications, Ecole Normale Supérieure de Cachan, CNRS, Université Paris-Saclay, Cachan, France
| | - Luba Tchertanov
- Centre de Mathématiques et de Leurs applications, Ecole Normale Supérieure de Cachan, CNRS, Université Paris-Saclay, Cachan, France
- * E-mail:
| |
Collapse
|