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Gerokonstantis DT, Mantzourani C, Gkikas D, Wu KC, Hoang HN, Triandafillidi I, Barbayianni I, Kanellopoulou P, Kokotos AC, Moutevelis-Minakakis P, Aidinis V, Politis PK, Fairlie DP, Kokotos G. N-(2-Aminophenyl)-benzamide Inhibitors of Class I HDAC Enzymes with Antiproliferative and Antifibrotic Activity. J Med Chem 2023; 66:14357-14376. [PMID: 37795958 DOI: 10.1021/acs.jmedchem.3c01422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Inhibitors of histone deacetylases (HDACs) have received special attention as novel anticancer agents. Among various types of synthetic inhibitors, benzamides constitute an important class, and one is an approved drug (chidamide). Here, we present a novel class of HDAC inhibitors containing the N-(2-aminophenyl)-benzamide functionality as the zinc-binding group linked to various cap groups, including the amino acids pyroglutamic acid and proline. We have identified benzamides that inhibit HADC1 and HDAC2 at nanomolar concentrations, with antiproliferative activity at micromolar concentrations against A549 and SF268 cancer cell lines. Docking studies shed light on the mode of binding of benzamide inhibitors to HDAC1, whereas cellular analysis revealed downregulated expression of EGFR mRNA and protein. Two benzamides were investigated in a mouse model of bleomycin-induced pulmonary fibrosis, and both showed efficacy on a preventative dosing schedule. N-(2-Aminophenyl)-benzamide inhibitors of class I HDACs might lead to new approaches for treating fibrotic disorders.
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Affiliation(s)
- Dimitrios Triantafyllos Gerokonstantis
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
- Center of Excellence for Drug Design and Discovery, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
| | - Christiana Mantzourani
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
- Center of Excellence for Drug Design and Discovery, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
| | - Dimitrios Gkikas
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens 11527, Greece
| | - Kai-Chen Wu
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Huy N Hoang
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Ierasia Triandafillidi
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
- Center of Excellence for Drug Design and Discovery, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
| | - Ilianna Barbayianni
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center "Alexander Fleming", Athens 16672, Greece
| | - Paraskevi Kanellopoulou
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center "Alexander Fleming", Athens 16672, Greece
| | - Alexandros C Kokotos
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens 11527, Greece
| | - Panagiota Moutevelis-Minakakis
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
- Center of Excellence for Drug Design and Discovery, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
| | - Vassilis Aidinis
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center "Alexander Fleming", Athens 16672, Greece
| | - Panagiotis K Politis
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens 11527, Greece
- School of Medicine, European University Cyprus, Nicosia 1516, Cyprus
| | - David P Fairlie
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland 4072, Australia
| | - George Kokotos
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
- Center of Excellence for Drug Design and Discovery, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
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Lysine Acetylation, Cancer Hallmarks and Emerging Onco-Therapeutic Opportunities. Cancers (Basel) 2022; 14:cancers14020346. [PMID: 35053509 PMCID: PMC8773583 DOI: 10.3390/cancers14020346] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/21/2021] [Accepted: 01/06/2022] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Several histone deacetylase inhibitors have been approved by FDA for cancer treatment. Intensive efforts have been devoted to enhancing its anti-cancer efficacy by combining it with various other agents. Yet, no guideline is available to assist in the choice of candidate drugs for combination towards optimal solutions for different clinical problems. Thus, it is imperative to characterize the primary cancer hallmarks that lysine acetylation is associated with and gain knowledge on the key cancer features that each combinatorial onco-therapeutic modality targets to aid in the combinatorial onco-therapeutic design. Cold atmospheric plasma represents an emerging anti-cancer modality via manipulating cellular redox level and has been demonstrated to selectively target several cancer hallmarks. This review aims to delineate the intrinsic connections between lysine acetylation and cancer properties, and forecast opportunities histone deacetylase inhibitors may have when combined with cold atmospheric plasma as novel precision onco-therapies. Abstract Acetylation, a reversible epigenetic process, is implicated in many critical cellular regulatory systems including transcriptional regulation, protein structure, activity, stability, and localization. Lysine acetylation is the most prevalent and intensively investigated among the diverse acetylation forms. Owing to the intrinsic connections of acetylation with cell metabolism, acetylation has been associated with metabolic disorders including cancers. Yet, relatively little has been reported on the features of acetylation against the cancer hallmarks, even though this knowledge may help identify appropriate therapeutic strategies or combinatorial modalities for the effective treatment and resolution of malignancies. By examining the available data related to the efficacy of lysine acetylation against tumor cells and elaborating the primary cancer hallmarks and the associated mechanisms to target the specific hallmarks, this review identifies the intrinsic connections between lysine acetylation and cancer hallmarks and proposes novel modalities that can be combined with HDAC inhibitors for cancer treatment with higher efficacy and minimum adverse effects.
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Cho E, Rowan-Carroll A, Williams A, Corton JC, Li HH, Fornace AJ, Hobbs CA, Yauk CL. Development and validation of the TGx-HDACi transcriptomic biomarker to detect histone deacetylase inhibitors in human TK6 cells. Arch Toxicol 2021; 95:1631-1645. [PMID: 33770205 DOI: 10.1007/s00204-021-03014-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/25/2021] [Indexed: 12/16/2022]
Abstract
Transcriptomic biomarkers can be used to inform molecular initiating and key events involved in a toxicant's mode of action. To address the limited approaches available for identifying epigenotoxicants, we developed and assessed a transcriptomic biomarker of histone deacetylase inhibition (HDACi). First, we assembled a set of ten prototypical HDACi and ten non-HDACi reference compounds. Concentration-response experiments were performed for each chemical to collect TK6 human lymphoblastoid cell samples after 4 h of exposure and to assess cell viability following a 20-h recovery period in fresh media. One concentration was selected for each chemical for whole transcriptome profiling and transcriptomic signature derivation, based on cell viability at the 24-h time point and on maximal induction of HDACi-response genes (RGL1, NEU1, GPR183) or cellular stress-response genes (ATF3, CDKN1A, GADD45A) analyzed by TaqMan qPCR assays after 4 h of exposure. Whole transcriptomes were profiled after 4 h exposures by Templated Oligo-Sequencing (TempO-Seq). By applying the nearest shrunken centroid (NSC) method to the whole transcriptome profiles of the reference compounds, we derived an 81-gene toxicogenomic (TGx) signature, referred to as TGx-HDACi, that classified all 20 reference compounds correctly using NSC classification and the Running Fisher test. An additional 4 HDACi and 7 non-HDACi were profiled and analyzed using TGx-HDACi to further assess classification performance; the biomarker accurately classified all 11 compounds, including 3 non-HDACi epigenotoxicants, suggesting a promising specificity toward HDACi. The availability of TGx-HDACi increases the diversity of tools that can facilitate mode of action analysis of toxicants using gene expression profiling.
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Affiliation(s)
- Eunnara Cho
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada
- Department of Biology, Carleton University, Ottawa, ON, Canada
| | - Andrea Rowan-Carroll
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada
| | - Andrew Williams
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada
| | - J Christopher Corton
- Center for Computational Toxicology and Exposure, US-EPA, Research Triangle Park, NC, USA
| | - Heng-Hong Li
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, DC, USA
| | - Albert J Fornace
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | - Cheryl A Hobbs
- Integrated Laboratory Systems, LLC, Research Triangle Park, NC, USA
| | - Carole L Yauk
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada.
- Department of Biology, University of Ottawa, Ottawa, ON, Canada.
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Mazloom A, Ghalehsari N, Gazivoda V, Nimkar N, Paul S, Gregos P, Rateshwar J, Khan U. Role of Immune Checkpoint Inhibitors in Gastrointestinal Malignancies. J Clin Med 2020; 9:E2533. [PMID: 32781500 PMCID: PMC7463795 DOI: 10.3390/jcm9082533] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/28/2020] [Accepted: 07/31/2020] [Indexed: 12/24/2022] Open
Abstract
Immune checkpoint inhibitors (ICIs) have revolutionized the treatment of several solid and hematological malignancies. ICIs are not only able to produce long and durable responses, but also very well tolerated by patients. There are several approved indications of use of ICIs in treatment of metastatic gastrointestinal malignancies including gastric, esophageal, colorectal and hepatocellular carcinoma. In addition, ICIs can be used in microsatellite instability-high (MSI-H) and high tumor mutational burden (TMB) tumors in chemotherapy-resistant setting. Despite having good efficacy and superior safety profile, ICIs are clinically active in small subset of patients, therefore, there is a huge unmet need to enhance their efficacy and discover new predictive biomarkers. There are several ongoing clinical trials that are exploring the role of ICIs in various gastrointestinal cancers either as single agent or in combination with chemotherapy, radiation therapy, targeted agents or other immunotherapeutic agents. In this review, we discuss the published and ongoing trials for ICIs in gastrointestinal malignancies, including esophageal, gastric cancer, pancreatic, hepatocellular, biliary tract, colorectal and anal cancers. Specifically, we focus on the use of ICIs in each line of therapy and discuss the future directions of these agents in each type of gastrointestinal cancer.
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Affiliation(s)
- Anita Mazloom
- Department of Medicine, NewYork-Presbyterian Brooklyn Methodist Hospital—Weill Cornell Medicine, Brooklyn, NY 11215, USA; (A.M.); (N.G.); (N.N.); (S.P.); (P.G.); (J.R.)
| | - Nima Ghalehsari
- Department of Medicine, NewYork-Presbyterian Brooklyn Methodist Hospital—Weill Cornell Medicine, Brooklyn, NY 11215, USA; (A.M.); (N.G.); (N.N.); (S.P.); (P.G.); (J.R.)
| | - Victor Gazivoda
- Department of Surgery, Maimonides Medical Center, Brooklyn, NY 11219, USA;
| | - Neil Nimkar
- Department of Medicine, NewYork-Presbyterian Brooklyn Methodist Hospital—Weill Cornell Medicine, Brooklyn, NY 11215, USA; (A.M.); (N.G.); (N.N.); (S.P.); (P.G.); (J.R.)
| | - Sonal Paul
- Department of Medicine, NewYork-Presbyterian Brooklyn Methodist Hospital—Weill Cornell Medicine, Brooklyn, NY 11215, USA; (A.M.); (N.G.); (N.N.); (S.P.); (P.G.); (J.R.)
| | - Peter Gregos
- Department of Medicine, NewYork-Presbyterian Brooklyn Methodist Hospital—Weill Cornell Medicine, Brooklyn, NY 11215, USA; (A.M.); (N.G.); (N.N.); (S.P.); (P.G.); (J.R.)
| | - Janice Rateshwar
- Department of Medicine, NewYork-Presbyterian Brooklyn Methodist Hospital—Weill Cornell Medicine, Brooklyn, NY 11215, USA; (A.M.); (N.G.); (N.N.); (S.P.); (P.G.); (J.R.)
| | - Uqba Khan
- Department of Medicine, NewYork-Presbyterian Brooklyn Methodist Hospital—Weill Cornell Medicine, Brooklyn, NY 11215, USA; (A.M.); (N.G.); (N.N.); (S.P.); (P.G.); (J.R.)
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Ramakrishnan VG, Miller KC, Macon EP, Kimlinger TK, Haug J, Kumar S, Gonsalves WI, Rajkumar SV, Kumar SK. Histone deacetylase inhibition in combination with MEK or BCL-2 inhibition in multiple myeloma. Haematologica 2019; 104:2061-2074. [PMID: 30846494 PMCID: PMC6886422 DOI: 10.3324/haematol.2018.211110] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 03/05/2019] [Indexed: 02/06/2023] Open
Abstract
Despite recent advances in the treatment of multiple myeloma, patients with this disease still inevitably relapse and become refractory to existing therapies. Mutations in K-RAS, N-RAS and B-RAF are common in multiple myeloma, affecting 50% of patients at diagnosis and >70% at relapse. However, targeting mutated RAS/RAF via MEK inhibition is merely cytostatic in myeloma and largely ineffective in the clinic. We examined mechanisms mediating this resistance and identified histone deacetylase inhibitors as potent synergistic partners. Combining the MEK inhibitor AZD6244 (selumetinib) with the pan-histone deacetylase inhibitor LBH589 (panobinostat) induced synergistic apoptosis in RAS/RAF mutated multiple myeloma cell lines. Interestingly, this synergy was dependent on the pro-apoptotic protein BIM. We determined that while single-agent MEK inhibition increased BIM levels, the protein remained sequestered by antiapoptotic BCL-2 family members. LBH589 dissociated BIM from MCL-1 and BCL-XL, which allowed it to bind BAX/BAK and thereby initiate apoptosis. The AZD6244/LBH589 combination was specifically active in cell lines with more BIM:MCL-1 complexes at baseline; resistant cell lines had more BIM:BCL-2 complexes. Those resistant cell lines were synergistically killed by combining the BH3 mimetic ABT-199 (venetoclax) with LBH589. Using more specific histone deacetylase inhibitors, i.e. MS275 (entinostat) and FK228 (romidepsin), and genetic methods, we determined that concomitant inhibition of histone deacetylases 1 and 2 was sufficient to synergize with either MEK or BCL-2 inhibition. Furthermore, these drug combinations effectively killed plasma cells from myeloma patients ex vivo. Given the preponderance of RAS/RAF mutations, and the fact that ABT-199 has demonstrated clinical efficacy in relapsed/refractory multiple myeloma, these drug combinations hold prom ise as biomarker-driven therapies.
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Affiliation(s)
| | | | - Elaine P Macon
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Teresa K Kimlinger
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Jessica Haug
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Sanjay Kumar
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Wilson I Gonsalves
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - S Vincent Rajkumar
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Shaji K Kumar
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
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