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Salamero O, Molero A, Pérez-Simón JA, Arnan M, Coll R, Garcia-Avila S, Acuña-Cruz E, Cano I, Somervaille TCP, Gutierrez S, Arévalo MI, Xaus J, Buesa C, Limón A, Faller DV, Bosch F, Montesinos P. Iadademstat in combination with azacitidine in patients with newly diagnosed acute myeloid leukaemia (ALICE): an open-label, phase 2a dose-finding study. Lancet Haematol 2024; 11:e487-e498. [PMID: 38824932 DOI: 10.1016/s2352-3026(24)00132-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 06/04/2024]
Abstract
BACKGROUND Iadademstat is a potent, selective, oral inhibitor of both the enzymatic and scaffolding activities of the transcriptional repressor lysine-specific demethylase 1 (LSD1; also known as KDM1A) that showed promising early activity and safety in a phase 1 trial and strong preclinical synergy with azacitidine in acute myeloid leukaemia cell lines. Therefore, we aimed to investigate the combination of iadademstat and azacitidine for the treatment of adult patients with newly diagnosed acute myeloid leukaemia. METHODS The open-label, phase 2a, dose-finding ALICE study was conducted at six hospitals in Spain and enrolled patients aged 18 years or older with newly diagnosed acute myeloid leukaemia not eligible for intensive chemotherapy and an ECOG performance status of 0-2. In the dose escalation portion of the trial, patients received a starting dose of iadademstat at 90 μg/m2 per day (with de-escalation to 60 μg/m2 per day and escalation up to 140 μg/m2 per day) orally, for 5 days on, 2 days off weekly, with azacitidine 75 mg/m2 subcutaneously, for seven of 28 days. The primary objectives were safety (analysed in the safety analysis set; all patients who received at least one dose of study treatment) and establishing the recommended phase 2 dose; secondary objectives included response rates in the efficacy analysis set (all patients who had at least one efficacy assessment). This study is registered on EudraCT (EudraCT 2018-000482-36) and has been completed. FINDINGS Between Nov 12, 2018, and Sept 30, 2021, 36 patients with newly diagnosed acute myeloid leukaemia were enrolled; the median age was 76 (IQR 74-79) years, all patients were White, 18 (50%) were male, and 18 (50%) were female, and all had intermediate-risk or adverse-risk acute myeloid leukaemia. The median follow-up was 22 (IQR 16-31) months. The most frequent (≥10%) adverse events considered to be related to treatment were decreases in platelet (25 [69%]) and neutrophil (22 [61%]) counts (all grade 3-4) and anaemia (15 [42%]; of which ten [28%] were grade 3-4). Three patients had treatment-related serious adverse events (one fatal grade 5 intracranial haemorrhage, one grade 3 differentiation syndrome, and one grade 3 febrile neutropenia). Based on safety, pharmacokinetic and pharmacodynamic data, and efficacy, the recommended phase 2 dose of iadademstat was 90 μg/m2 per day with azacitidine. 22 (82%; 95% CI 62-94) of 27 patients in the efficacy analysis set had an objective response. 14 (52%) of 27 patients had complete remission or complete remission with incomplete haematological recovery; of these, ten of 11 evaluable for measurable residual disease achieved negativity. In the safety analysis set, 22 (61%) of 36 patients had an objective response. INTERPRETATION The combination of iadademstat and azacitidine has a manageable safety profile and shows promising responses in patients with newly diagnosed acute myeloid leukaemia, including those with high-risk prognostic factors. FUNDING Oryzon Genomics and Spain's Ministerio de Ciencia, Innovacion y Universidades (MICIU)-Agencia Estatal de Investigacion (AEI).
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Affiliation(s)
- Olga Salamero
- Servei d'Hematologia de l'Hospital Vall d'Hebron i Unitat d'Hematología Experimental del Vall d'Hebron Institut d'Oncología, Facultat de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Antonieta Molero
- Servei d'Hematologia de l'Hospital Vall d'Hebron i Unitat d'Hematología Experimental del Vall d'Hebron Institut d'Oncología, Facultat de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - José Antonio Pérez-Simón
- Unidad de Hematología y Hematoterapia, Hospital Universitario Virgen del Rocío, Instituto de Biomedicina de Sevilla (IBIS), CSIC, Universidad de Sevilla, Seville, Spain
| | - Montserrat Arnan
- Departament d'Hematología, Institut Català d'Oncología, Hospital Duran i Reynals, Barcelona, Spain
| | - Rosa Coll
- Departament d'Hematología, Institut Català d'Oncología, Hospital Dr Josep Trueta, Girona, Spain
| | - Sara Garcia-Avila
- Departament d'Hematología Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
| | - Evelyn Acuña-Cruz
- Servei d'Hematología i Hematoterapia, Institut d'Investigació Sanitaria La Fe Valencia, Valencia, Spain
| | - Isabel Cano
- Servei d'Hematología i Hematoterapia, Institut d'Investigació Sanitaria La Fe Valencia, Valencia, Spain
| | - Tim C P Somervaille
- Cancer Research UK Manchester Institute, University of Manchester, Manchester, UK; The Christie NHS Foundation Trust, Manchester, UK
| | | | | | - Jordi Xaus
- Oryzon Genomics, Cornellà de Llobregat, Barcelona, Spain
| | - Carlos Buesa
- Oryzon Genomics, Cornellà de Llobregat, Barcelona, Spain
| | | | | | - Francesc Bosch
- Unitat d'Hematología Experimental, Vall d'Hebron Institut d'Oncología, Facultat de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Pau Montesinos
- Servei d'Hematología i Hematoterapia, Institut d'Investigació Sanitaria La Fe Valencia, Valencia, Spain
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2
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Sacilotto N, Dessanti P, Lufino MMP, Ortega A, Rodríguez-Gimeno A, Salas J, Maes T, Buesa C, Mascaró C, Soliva R. Comprehensive in Vitro Characterization of the LSD1 Small Molecule Inhibitor Class in Oncology. ACS Pharmacol Transl Sci 2021; 4:1818-1834. [PMID: 34927013 DOI: 10.1021/acsptsci.1c00223] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 01/10/2023]
Abstract
Lysine-specific demethylase 1 (LSD1 or KDM1A) is a chromatin modifying enzyme playing a key role in the cell cycle and cell differentiation and proliferation through the demethylation of histones and nonhistone substrates. In addition to its enzymatic activity, LSD1 plays a fundamental scaffolding role as part of transcription silencing complexes such as rest co-repressor (CoREST) and nucleosome remodeling and deacetylase (NuRD). A host of classical amine oxidase inhibitors such as tranylcypromine, pargyline, and phenelzine together with LSD1 tool compounds such as SP-2509 and GSK-LSD1 have been extensively utilized in LSD1 mechanistic cancer studies. Additionally, several optimized new chemical entities have reached clinical trials in oncology such as ORY-1001 (iadademstat), GSK2879552, SP-2577 (seclidemstat), IMG-7289 (bomedemstat), INCB059872, and CC-90011 (pulrodemstat). Despite this, no single study exists that characterizes them all under the same experimental conditions, preventing a clear interpretation of published results. Herein, we characterize the whole LSD1 small molecule compound class as inhibitors of LSD1 catalytic activity, disruptors of SNAIL/GFI1 (SNAG)-scaffolding protein-protein interactions, inducers of cell differentiation, and potential anticancer treatments for hematological and solid tumors to yield an updated, unified perspective of this field. Our results highlight significant differences in potency and selectivity among the clinical compounds with iadademstat being the most potent and reveal that most of the tool compounds have very low activity and selectivity, suggesting some conclusions derived from their use should be taken with caution.
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Affiliation(s)
- Natalia Sacilotto
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
| | - Paola Dessanti
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
| | - Michele M P Lufino
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
| | - Alberto Ortega
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
| | | | - Jordi Salas
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
| | - Tamara Maes
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
| | - Carlos Buesa
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
| | - Cristina Mascaró
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
| | - Robert Soliva
- Oryzon Genomics S.A., Carrer Sant Ferran 74, Cornellà de Llobregat, 08940 Barcelona, Spain
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Bailey CP, Figueroa M, Gangadharan A, Yang Y, Romero MM, Kennis BA, Yadavilli S, Henry V, Collier T, Monje M, Lee DA, Wang L, Nazarian J, Gopalakrishnan V, Zaky W, Becher OJ, Chandra J. Pharmacologic inhibition of lysine-specific demethylase 1 as a therapeutic and immune-sensitization strategy in pediatric high-grade glioma. Neuro Oncol 2021; 22:1302-1314. [PMID: 32166329 DOI: 10.1093/neuonc/noaa058] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Diffuse midline gliomas (DMG), including brainstem diffuse intrinsic pontine glioma (DIPG), are incurable pediatric high-grade gliomas (pHGG). Mutations in the H3 histone tail (H3.1/3.3-K27M) are a feature of DIPG, rendering them therapeutically sensitive to small-molecule inhibition of chromatin modifiers. Pharmacological inhibition of lysine-specific demethylase 1 (LSD1) is clinically relevant but has not been carefully investigated in pHGG or DIPG. METHODS Patient-derived DIPG cell lines, orthotopic mouse models, and pHGG datasets were used to evaluate effects of LSD1 inhibitors on cytotoxicity and immune gene expression. Immune cell cytotoxicity was assessed in DIPG cells pretreated with LSD1 inhibitors, and informatics platforms were used to determine immune infiltration of pHGG. RESULTS Selective cytotoxicity and an immunogenic gene signature were established in DIPG cell lines using clinically relevant LSD1 inhibitors. Pediatric HGG patient sequencing data demonstrated survival benefit of this LSD1-dependent gene signature. Pretreatment of DIPG with these inhibitors increased lysis by natural killer (NK) cells. Catalytic LSD1 inhibitors induced tumor regression and augmented NK cell infusion in vivo to reduce tumor burden. CIBERSORT analysis of patient data confirmed NK infiltration is beneficial to patient survival, while CD8 T cells are negatively prognostic. Catalytic LSD1 inhibitors are nonperturbing to NK cells, while scaffolding LSD1 inhibitors are toxic to NK cells and do not induce the gene signature in DIPG cells. CONCLUSIONS LSD1 inhibition using catalytic inhibitors is selectively cytotoxic and promotes an immune gene signature that increases NK cell killing in vitro and in vivo, representing a therapeutic opportunity for pHGG. KEY POINTS 1. LSD1 inhibition using several clinically relevant compounds is selectively cytotoxic in DIPG and shows in vivo efficacy as a single agent.2. An LSD1-controlled gene signature predicts survival in pHGG patients and is seen in neural tissue from LSD1 inhibitor-treated mice.3. LSD1 inhibition enhances NK cell cytotoxicity against DIPG in vivo and in vitro with correlative genetic biomarkers.
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Affiliation(s)
- Cavan P Bailey
- Department of Pediatrics , Research, The MD Anderson Cancer Center, Houston, Texas.,Department of Epigenetics and Molecular Carcinogenesis, The MD Anderson Cancer Center, Houston, Texas.,Center for Cancer Epigenetics, The MD Anderson Cancer Center, Houston, Texas
| | - Mary Figueroa
- Department of Pediatrics , Research, The MD Anderson Cancer Center, Houston, Texas.,Department of Epigenetics and Molecular Carcinogenesis, The MD Anderson Cancer Center, Houston, Texas.,Center for Cancer Epigenetics, The MD Anderson Cancer Center, Houston, Texas
| | - Achintyan Gangadharan
- Department of Pediatrics , Research, The MD Anderson Cancer Center, Houston, Texas.,Department of Epigenetics and Molecular Carcinogenesis, The MD Anderson Cancer Center, Houston, Texas
| | - Yanwen Yang
- Department of Pediatrics , Research, The MD Anderson Cancer Center, Houston, Texas
| | - Megan M Romero
- Department of Pediatrics, Northwestern Feinberg School of Medicine, Chicago, Illinois
| | - Bridget A Kennis
- Department of Pediatrics , Research, The MD Anderson Cancer Center, Houston, Texas
| | - Sridevi Yadavilli
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC
| | - Verlene Henry
- Department of Pediatrics , Research, The MD Anderson Cancer Center, Houston, Texas
| | - Tiara Collier
- Brain Tumor Center, The MD Anderson Cancer Center, Houston, Texas
| | - Michelle Monje
- Department of Neurology and Neurological Sciences, Stanford University, Palo Alto, California
| | - Dean A Lee
- Department of Pediatrics, Nationwide Children's and the Ohio State Comprehensive Cancer Center, Columbus, Ohio
| | - Linghua Wang
- Department of Genomic Medicine, The MD Anderson Cancer Center, Houston, Texas
| | - Javad Nazarian
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC
| | - Vidya Gopalakrishnan
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas.,Center for Cancer Epigenetics, The MD Anderson Cancer Center, Houston, Texas
| | - Wafik Zaky
- Department of Pediatrics , Research, The MD Anderson Cancer Center, Houston, Texas
| | - Oren J Becher
- Department of Pediatrics, Northwestern Feinberg School of Medicine, Chicago, Illinois
| | - Joya Chandra
- Department of Pediatrics , Research, The MD Anderson Cancer Center, Houston, Texas.,Department of Epigenetics and Molecular Carcinogenesis, The MD Anderson Cancer Center, Houston, Texas.,Center for Cancer Epigenetics, The MD Anderson Cancer Center, Houston, Texas
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Antonijoan RM, Ferrero-Cafiero JM, Coimbra J, Puntes M, Martínez-Colomer J, Arévalo MI, Mascaró C, Molinero C, Buesa C, Maes T. First-in-Human Randomized Trial to Assess Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of the KDM1A Inhibitor Vafidemstat. CNS Drugs 2021; 35:331-344. [PMID: 33755924 PMCID: PMC7985749 DOI: 10.1007/s40263-021-00797-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/12/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Vafidemstat, an inhibitor of the histone lysine-specific demethylase KDM1A, corrects cognition deficits and behavior alterations in rodent models. Here, we report the results from the first-in-human trial of vafidemstat in healthy young and older adult volunteers. A total of 110 volunteers participated: 87 were treated with vafidemstat and 23 with placebo. OBJECTIVES The study aimed to determine the safety and tolerability of vafidemstat, to characterize its pharmacokinetic and pharmacodynamic profiles, to assess its central nervous system (CNS) exposure, and to acquire the necessary data to select the appropriate doses for long-term treatment of patients with CNS disease in phase II trials. METHODS This single-center, randomized, double-blind, placebo-controlled phase I trial included a single and 5-day repeated dose-escalation and open-label CNS penetration substudy. Primary outcomes were safety and tolerability; secondary outcomes included analysis of the pharmacokinetics and pharmacodynamics, including chemoprobe-based immune analysis of KDM1A target engagement (TE) in peripheral blood mononuclear cells (PBMCs) and platelet monoamine oxidase B (MAOB) inhibition. CNS and cognitive function were also evaluated. RESULTS No severe adverse events (AEs) were reported in the dose-escalation stage. AEs were reported at all dose levels; none were dose dependent, and no significant differences were observed between active treatment and placebo. Biochemistry, urinalysis, vital signs, electrocardiogram, and hematology did not change significantly with dose escalation, with the exception of a transient reduction of platelet counts in an extra dose level incorporated for that purpose. Vafidemstat exhibits rapid oral absorption, approximate dose-proportional exposures, and moderate systemic accumulation after 5 days of treatment. The cerebrospinal fluid-to-plasma unbound ratio demonstrated CNS penetration. Vafidemstat bound KDM1A in PBMCs in a dose-dependent manner. No MAOB inhibition was detected. Vafidemstat did not affect the CNS or cognitive function. CONCLUSIONS Vafidemstat displayed good safety and tolerability. This phase I trial confirmed KDM1A TE and CNS penetration and permitted characterization of platelet dynamics and selection of phase IIa doses. TRIAL REGISTRATION EUDRACT No. 2015-003721-33, filed 30 October 2015.
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Affiliation(s)
- Rosa María Antonijoan
- Centre d'Investigació del Medicament, Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau (IIB-Sant Pau), Barcelona, Spain
- Pharmacology and Therapeutics Department, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Juan Manuel Ferrero-Cafiero
- Centre d'Investigació del Medicament, Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau (IIB-Sant Pau), Barcelona, Spain
| | - Jimena Coimbra
- Centre d'Investigació del Medicament, Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau (IIB-Sant Pau), Barcelona, Spain
| | - Montse Puntes
- Centre d'Investigació del Medicament, Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau (IIB-Sant Pau), Barcelona, Spain
| | - Joan Martínez-Colomer
- Centre d'Investigació del Medicament, Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau (IIB-Sant Pau), Barcelona, Spain
| | - María Isabel Arévalo
- Oryzon Genomics S.A. Carrer Sant Ferran 74, Cornellà de Llobregat, 08940, Barcelona, Spain
| | - Cristina Mascaró
- Oryzon Genomics S.A. Carrer Sant Ferran 74, Cornellà de Llobregat, 08940, Barcelona, Spain
| | - Cesar Molinero
- Oryzon Genomics S.A. Carrer Sant Ferran 74, Cornellà de Llobregat, 08940, Barcelona, Spain
| | - Carlos Buesa
- Oryzon Genomics S.A. Carrer Sant Ferran 74, Cornellà de Llobregat, 08940, Barcelona, Spain
| | - Tamara Maes
- Oryzon Genomics S.A. Carrer Sant Ferran 74, Cornellà de Llobregat, 08940, Barcelona, Spain.
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5
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Jia G, Cang S, Ma P, Song Z. Capsaicin: A “hot” KDM1A/LSD1 inhibitor from peppers. Bioorg Chem 2020; 103:104161. [DOI: 10.1016/j.bioorg.2020.104161] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/30/2020] [Accepted: 08/02/2020] [Indexed: 12/18/2022]
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6
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Beyer JN, Raniszewski NR, Burslem GM. Advances and Opportunities in Epigenetic Chemical Biology. Chembiochem 2020; 22:17-42. [PMID: 32786101 DOI: 10.1002/cbic.202000459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/10/2020] [Indexed: 12/13/2022]
Abstract
The study of epigenetics has greatly benefited from the development and application of various chemical biology approaches. In this review, we highlight the key targets for modulation and recent methods developed to enact such modulation. We discuss various chemical biology techniques to study DNA methylation and the post-translational modification of histones as well as their effect on gene expression. Additionally, we address the wealth of protein synthesis approaches to yield histones and nucleosomes bearing epigenetic modifications. Throughout, we highlight targets that present opportunities for the chemical biology community, as well as exciting new approaches that will provide additional insight into the roles of epigenetic marks.
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Affiliation(s)
- Jenna N Beyer
- Department of Biochemistry and Biophysics Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd., Philadelphia, PA 19104, USA
| | - Nicole R Raniszewski
- Department of Biochemistry and Biophysics Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd., Philadelphia, PA 19104, USA
| | - George M Burslem
- Department of Biochemistry and Biophysics Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd., Philadelphia, PA 19104, USA.,Department of Cancer Biology and Epigenetics Institute Perelman School of Medicine, University of Pennsylvania, 422 Curie Blvd., Philadelphia, PA 19104, USA
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7
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Antiviral Properties of the LSD1 Inhibitor SP-2509. J Virol 2020; 94:JVI.00974-20. [PMID: 32699090 PMCID: PMC7495396 DOI: 10.1128/jvi.00974-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/16/2020] [Indexed: 12/18/2022] Open
Abstract
Treatment of HSV-1-infected cells with SP-2509 blocked viral DNA replication, gene expression after the onset of DNA replication, and virus production. These data support a potential new role for LSD1 in the regulation of viral DNA replication and successive steps in the virus life cycle, and further highlight the promising potential to utilize LSD1 inhibition as an antiviral approach. Lysine-specific demethylase 1 (LSD1) targets cellular proteins, including histone H3, p53, E2F, and Dnmt1, and is involved in the regulation of gene expression, DNA replication, the cell cycle, and the DNA damage response. LSD1 catalyzes demethylation of histone H3K9 associated with herpes simplex virus 1 (HSV-1) immediate early (IE) promoters and is necessary for IE gene expression, viral DNA replication, and reactivation from latency. We previously found that LSD1 associates with HSV-1 replication forks and replicating viral DNA, suggesting that it may play a direct role in viral replication or coupled processes. We investigated the effects of the LSD1 inhibitor SP-2509 on the HSV-1 life cycle. Unlike previously investigated LSD1 inhibitors tranylcypromine (TCP) and OG-L002, which covalently attach to the LSD1 cofactor flavin adenine dinucleotide (FAD) to inhibit demethylase activity, SP-2509 has previously been shown to inhibit LSD1 protein-protein interactions. We found that SP-2509 does not inhibit HSV-1 IE gene expression or transcription factor and RNA polymerase II (Pol II) association with viral DNA prior to the onset of replication. However, SP-2509 does inhibit viral DNA replication, late gene expression, and virus production. We used EdC labeling of nascent viral DNA to image aberrant viral replication compartments that form in the presence of SP-2509. Treatment resulted in the formation of small replication foci that colocalize with replication proteins but are defective for Pol II recruitment. Taken together, these data highlight a potential new role for LSD1 in the regulation of HSV-1 DNA replication and gene expression after the onset of DNA replication. IMPORTANCE Treatment of HSV-1-infected cells with SP-2509 blocked viral DNA replication, gene expression after the onset of DNA replication, and virus production. These data support a potential new role for LSD1 in the regulation of viral DNA replication and successive steps in the virus life cycle, and further highlight the promising potential to utilize LSD1 inhibition as an antiviral approach.
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Maes T, Mascaró C, Rotllant D, Lufino MMP, Estiarte A, Guibourt N, Cavalcanti F, Griñan-Ferré C, Pallàs M, Nadal R, Armario A, Ferrer I, Ortega A, Valls N, Fyfe M, Martinell M, Castro Palomino JC, Buesa Arjol C. Modulation of KDM1A with vafidemstat rescues memory deficit and behavioral alterations. PLoS One 2020; 15:e0233468. [PMID: 32469975 PMCID: PMC7259601 DOI: 10.1371/journal.pone.0233468] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 05/05/2020] [Indexed: 12/15/2022] Open
Abstract
Transcription disequilibria are characteristic of many neurodegenerative diseases. The activity-evoked transcription of immediate early genes (IEGs), important for neuronal plasticity, memory and behavior, is altered in CNS diseases and governed by epigenetic modulation. KDM1A, a histone 3 lysine 4 demethylase that forms part of transcription regulation complexes, has been implicated in the control of IEG transcription. Here we report the development of vafidemstat (ORY-2001), a brain penetrant inhibitor of KDM1A and MAOB. ORY-2001 efficiently inhibits brain KDM1A at doses suitable for long term treatment, and corrects memory deficit as assessed in the novel object recognition testing in the Senescence Accelerated Mouse Prone 8 (SAMP8) model for accelerated aging and Alzheimer's disease. Comparison with a selective KDM1A or MAOB inhibitor reveals that KDM1A inhibition is key for efficacy. ORY-2001 further corrects behavior alterations including aggression and social interaction deficits in SAMP8 mice and social avoidance in the rat rearing isolation model. ORY-2001 increases the responsiveness of IEGs, induces genes required for cognitive function and reduces a neuroinflammatory signature in SAMP8 mice. Multiple genes modulated by ORY-2001 are differentially expressed in Late Onset Alzheimer's Disease. Most strikingly, the amplifier of inflammation S100A9 is highly expressed in LOAD and in the hippocampus of SAMP8 mice, and down-regulated by ORY-2001. ORY-2001 is currently in multiple Phase IIa studies.
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Affiliation(s)
- Tamara Maes
- Oryzon Genomics, S.A., Cornellà de Llobregat, Spain
| | | | | | | | | | | | | | - Christian Griñan-Ferré
- Faculty of Pharmacy and Food Sciences, Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Mercè Pallàs
- Faculty of Pharmacy and Food Sciences, Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Roser Nadal
- Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Antonio Armario
- Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Isidro Ferrer
- Institut de Neuropatologia, Servei Anatomia Patologica, IDIBELL-Hospital Universitari de Bellvitge, L’Hospitalet de Llobregat, Spain
| | | | - Nuria Valls
- Oryzon Genomics, S.A., Cornellà de Llobregat, Spain
| | - Matthew Fyfe
- Oryzon Genomics, S.A., Cornellà de Llobregat, Spain
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9
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Bouhaddou M, Yu LJ, Lunardi S, Stamatelos SK, Mack F, Gallo JM, Birtwistle MR, Walz AC. Predicting In Vivo Efficacy from In Vitro Data: Quantitative Systems Pharmacology Modeling for an Epigenetic Modifier Drug in Cancer. Clin Transl Sci 2020; 13:419-429. [PMID: 31729169 PMCID: PMC7070804 DOI: 10.1111/cts.12727] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 10/16/2019] [Indexed: 02/04/2023] Open
Abstract
Reliably predicting in vivo efficacy from in vitro data would facilitate drug development by reducing animal usage and guiding drug dosing in human clinical trials. However, such prediction remains challenging. Here, we built a quantitative pharmacokinetic/pharmacodynamic (PK/PD) mathematical model capable of predicting in vivo efficacy in animal xenograft models of tumor growth while trained almost exclusively on in vitro cell culture data sets. We studied a chemical inhibitor of LSD1 (ORY‐1001), a lysine‐specific histone demethylase enzyme with epigenetic function, and drug‐induced regulation of target engagement, biomarker levels, and tumor cell growth across multiple doses administered in a pulsed and continuous fashion. A PK model of unbound plasma drug concentration was linked to the in vitro PD model, which enabled the prediction of in vivo tumor growth dynamics across a range of drug doses and regimens. Remarkably, only a change in a single parameter—the one controlling intrinsic cell/tumor growth in the absence of drug—was needed to scale the PD model from the in vitro to in vivo setting. These findings create a framework for using in vitro data to predict in vivo drug efficacy with clear benefits to reducing animal usage while enabling the collection of dense time course and dose response data in a highly controlled in vitro environment.
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Affiliation(s)
- Mehdi Bouhaddou
- Roche Pharma Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center, New York, New York, USA.,Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Cellular and Molecular Pharmacology, University of California, San Francisco, California, USA.,J. David Gladstone Institutes, San Francisco, California, USA
| | - Li J Yu
- Roche Pharma Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center, New York, New York, USA
| | | | - Spyros K Stamatelos
- Roche Pharma Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center, New York, New York, USA.,Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Fiona Mack
- Roche Pharma Research and Early Development, Oncology, Roche Innovation Center, New York, New York, USA
| | - James M Gallo
- Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Marc R Birtwistle
- Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina, USA
| | - Antje-Christine Walz
- Roche Pharma Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center, Basel, Switzerland
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Kath JE, Baranczak A. Target engagement approaches for pharmacological evaluation in animal models. Chem Commun (Camb) 2019; 55:9241-9250. [PMID: 31328738 DOI: 10.1039/c9cc02824b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The field of chemical biology has introduced several approaches, typically using chemical probes, to measure the direct binding interaction of a small molecule with its biological target in cells. The use of these direct target engagement assays in pharmaceutical development can support mechanism of action hypothesis testing, rank ordering of compounds, and iterative improvements of chemical matter. This Feature Article highlights a newer application of these approaches: the quantification of target engagement in animal models to support late stage preclinical development and the nomination of a drug candidate to clinical trials. Broadly speaking, these efforts can be divided between compounds that covalently and reversibly interact with protein targets; recent examples for both categories are discussed for a range of targets, along with their limitations. New, promising technologies are also highlighted, in addition to the application of target engagement determination to new therapeutic modalities.
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Affiliation(s)
- James E Kath
- Drug Discovery Science and Technology, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064-6101, USA.
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Abstract
Small-molecule inhibitors of histone-modifying enzymes have significant clinical utility for managing diseases such as cancer. These inhibitors are usually identified and monitored through their effects on the gain or loss of specific histone marks. In cells, multiple related enzymes can place or remove a specific mark; therefore, relying on an indirect measure of inhibitor engagement can be misleading. Mascaró et al. describe a luminescence-based ELISA approach that directly monitors binding of inhibitors to the histone lysine demethylase KDM1A.
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Affiliation(s)
- Aseem Z Ansari
- Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706.
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