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Maruyama D, Tobinai K, Ogura M, Uchida T, Hatake K, Taniwaki M, Ando K, Tsukasaki K, Ishida T, Kobayashi N, Ishizawa K, Tatsumi Y, Kato K, Kiguchi T, Ikezoe T, Laille E, Ro T, Tamakoshi H, Sakurai S, Ohtsu T. Romidepsin in Japanese patients with relapsed or refractory peripheral T-cell lymphoma: a phase I/II and pharmacokinetics study. Int J Hematol 2017; 106:655-665. [PMID: 28664499 DOI: 10.1007/s12185-017-2286-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 12/31/2022]
Abstract
This phase I/II multicenter study evaluated romidepsin treatment in Japanese patients with relapsed/refractory peripheral T-cell lymphoma (PTCL) or cutaneous T-cell lymphoma (CTCL). Patients aged ≥20 years received romidepsin via a 4-h intravenous infusion on days 1, 8, and 15 of each 28-day cycle. Phase I used a 3 + 3 design to identify any dose-limiting toxicity (DLT) for regimens of romidepsin 9 and 14 mg/m2. The primary endpoints for phase I and II were DLT and overall response rate (ORR), respectively. Intent-to-treat patients were those who received ≥1 romidepsin dose (PTCL, n = 48; CTCL, n = 2). In phase I, none of the patients (n = 3, 9 mg/m2; n = 6, 14 mg/m2) exhibited DLT. In phase II, 40 patients with PTCL were treated with 14 mg/m2 romidepsin. The most common treatment-emergent grade ≥3 adverse events were lymphopenia (74%), neutropenia (54%), leukopenia (46%), and thrombocytopenia (38%). Patients in phase II showed a 43% ORR, including 25% complete responses. Median progression-free survival was 5.6 months and median duration of response was 11.1 months. This phase I/II study identified a well-tolerated dose of romidepsin, with an acceptable toxicity profile and clinically meaningful efficacy in Japanese patients with relapsed/refractory PTCL. ClinicalTrials.gov Identifier NCT01456039.
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Affiliation(s)
- Dai Maruyama
- Department of Hematology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, Japan.
| | - Kensei Tobinai
- Department of Hematology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, Japan
| | - Michinori Ogura
- Department of Hematology, Tokai Central Hospital, Gifu, Japan.,Department of Hematology and Oncology, Nagoya Daini Red Cross Hospital, Aichi, Japan
| | - Toshiki Uchida
- Department of Hematology and Oncology, Nagoya Daini Red Cross Hospital, Aichi, Japan
| | - Kiyohiko Hatake
- Department of Hematology and Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masafumi Taniwaki
- Department of Hematology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kiyoshi Ando
- Department of Hematology/Oncology, Tokai University School of Medicine, Kanagawa, Japan
| | - Kunihiro Tsukasaki
- Department of Hematology and Oncology, National Cancer Center Hospital East, Chiba, Japan
| | - Takashi Ishida
- Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Aichi, Japan
| | - Naoki Kobayashi
- Department of Hematology, Sapporo Hokuyu Hospital, Hokkaido, Japan
| | - Kenichi Ishizawa
- Department of Hematology and Rheumatology, Tohoku University Hospital, Miyagi, Japan.,Hematology and Cell Therapy, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yoichi Tatsumi
- Department of Hematology and Rheumatology, Kinki University Hospital, Faculty of Medicine, Osaka, Japan
| | - Koji Kato
- Department of Hematology and Oncology, Kyushu University Hospital, Fukuoka, Japan
| | - Toru Kiguchi
- Department of Hematology, Chugoku Central Hospital, Hiroshima, Japan
| | - Takayuki Ikezoe
- Department of Hematology and Respiratory Medicine, Kochi Medical School Hospital, Kochi, Japan.,Department of Hematology, Fukushima Medical University School of Medicine, Fukushima, Japan
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102
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Smolewski P, Robak T. The discovery and development of romidepsin for the treatment of T-cell lymphoma. Expert Opin Drug Discov 2017. [PMID: 28641053 DOI: 10.1080/17460441.2017.1341487] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Romidepsin is a potent and selective inhibitor of histone deacetylases (HDCAi). It is also the only bicyclic inhibitor to undergo clinical assessment and is considered a promising drug for the treatment of T-cell lymphomas. The cellular action of romidepsin results in enhanced histone acetylation, as well as the acetylation of other nuclear or cytoplasmic proteins, influencing cell cycle, apoptosis, and angiogenesis. In phase II studies involving patients with relapsed or refractory of cutaneous T-cell lymphoma (CTCL) and peripheral T-cell lymphoma (PTCL), romidepsin produced overall response rates (ORR) of 34-35% and 25-38%, with complete response (CR) rates of 6% and 15-18%, respectively. Areas covered: This review summarizes the development of romidepsin, the mechanisms behind its antineoplastic action and its pharmacology. It also covers its pharmacokinetic and pharmacodynamic properties, as well as the preclinical and clinical data on its activity in T-cell lymphoma. Expert opinion: Since there are only few effective therapies available for T-cell lymphomas, romidepsin is a valuable option for relapsed/refractory patients with both CTCL and PTCL. It's also generally well tolerated, and gives potentially durable responses for patients with advanced and symptomatic disease. Combinations of romidepsin with other antineoplastic agents may also further improve drug response and outcomes in T-cell lymphoma.
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Affiliation(s)
- Piotr Smolewski
- a Department of Experimental Hematology , Medical University of Lodz , Lodz , Poland.,c Department of Hematology , Copernicus Memorial Hospital at Lodz , Lodz , Poland
| | - Tadeusz Robak
- b Department of Hematology , Medical University of Lodz , Lodz , Poland.,c Department of Hematology , Copernicus Memorial Hospital at Lodz , Lodz , Poland
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103
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Zwick V, Allard PM, Ory L, Simões-Pires CA, Marcourt L, Gindro K, Wolfender JL, Cuendet M. UHPLC-MS-based HDAC Assay Applied to Bio-guided Microfractionation of Fungal Extracts. PHYTOCHEMICAL ANALYSIS : PCA 2017; 28:93-100. [PMID: 27921344 DOI: 10.1002/pca.2652] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/06/2016] [Accepted: 09/18/2016] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Histone deacetylases (HDAC) are considered as promising targets for cancer treatment. Today, four HDAC inhibitors, vorinostat, romidepsin, belinostat, and panobinostat, have been approved by the Food and Drug Administration (FDA) for cancer treatment, while others are in clinical trials. Among them, several are naturally occurring fungal metabolites. OBJECTIVE To develop and optimise an enzyme assay for bio-guided identification of HDAC inhibitors in fungal strains. METHODS Fluorescence and MS-based HDAC enzymatic assays were compared during the bio-guided fractionation of Penicillium griseofulvum. The MS-based approach was then optimised to evaluate HDAC selectivity using the human recombinant class I isoform HDAC1 and the class II isoform HDAC6. RESULTS Fluorescence-based assays have several drawbacks when used for bio-guided fractionation because of the native fluorescence and the trypsin inhibitory ability of compounds present in many extracts. The MS-based method led to the isolation of gliocladride C, which is selective for HDAC1 and salirepol, which showed an HDAC6 selectivity. Their activity and presence in P. griseofulvum is described here for the first time. CONCLUSION The UHPLC-ESI-MS/MS-based method using specific HDAC isoforms is suitable to isolate selective HDAC inhibitors by bio-guided fractionation of fungal strains. Also, it decreases potential interferences with natural products compared to the fluorescence-based assay.
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Affiliation(s)
- Vincent Zwick
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Pierre-Marie Allard
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Lucie Ory
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Claudia A Simões-Pires
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Katia Gindro
- Mycology and Biotechnology group, Institute for Plant Production Sciences IPS, Agroscope, Route de Duillier 50, P.O. Box 1260, Nyon, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Muriel Cuendet
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
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104
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Zagni C, Floresta G, Monciino G, Rescifina A. The Search for Potent, Small-Molecule HDACIs in Cancer Treatment: A Decade After Vorinostat. Med Res Rev 2017; 37:1373-1428. [PMID: 28181261 DOI: 10.1002/med.21437] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 12/05/2016] [Accepted: 12/12/2016] [Indexed: 12/12/2022]
Abstract
Histone deacetylases (HDACs) play a crucial role in the remodeling of chromatin, and are involved in the epigenetic regulation of gene expression. In the last decade, inhibition of HDACs came out as a target for specific epigenetic changes associated with cancer and other diseases. Until now, more than 20 HDAC inhibitors (HDACIs) have entered clinical studies, and some of them (e.g., vorinostat, romidepsin) have been approved for the treatment of cutaneous T-cell lymphoma. This review provides an overview of current knowledge, progress, and molecular mechanisms of HDACIs, covering a period from 2011 until 2015.
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Affiliation(s)
- Chiara Zagni
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Giuseppe Floresta
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale Andrea Doria 6, 95125, Catania, Italy.,Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Giulia Monciino
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Antonio Rescifina
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale Andrea Doria 6, 95125, Catania, Italy
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105
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Maolanon AR, Kristensen HME, Leman LJ, Ghadiri MR, Olsen CA. Natural and Synthetic Macrocyclic Inhibitors of the Histone Deacetylase Enzymes. Chembiochem 2016; 18:5-49. [DOI: 10.1002/cbic.201600519] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Alex R. Maolanon
- Center for Biopharmaceuticals and; Department of Drug Design and Pharmacology; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
| | - Helle M. E. Kristensen
- Center for Biopharmaceuticals and; Department of Drug Design and Pharmacology; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
| | - Luke J. Leman
- Department of Chemistry; The Skaggs Institute for Chemical Biology; The Scripps Research Institute; 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - M. Reza Ghadiri
- Department of Chemistry; The Skaggs Institute for Chemical Biology; The Scripps Research Institute; 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Christian A. Olsen
- Center for Biopharmaceuticals and; Department of Drug Design and Pharmacology; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
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106
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Narita K, Katoh Y, Ojima KI, Dan S, Yamori T, Ito A, Yoshida M, Katoh T. Total Synthesis of the Depsipeptide FR901375 and Preliminary Evaluation of Its Biological Activity. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Koichi Narita
- Laboratory of Synthetic and Medicinal Chemistry; Faculty of Pharmaceutical Sciences; Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Yuya Katoh
- Laboratory of Synthetic and Medicinal Chemistry; Faculty of Pharmaceutical Sciences; Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Ken-ichi Ojima
- Laboratory of Synthetic and Medicinal Chemistry; Faculty of Pharmaceutical Sciences; Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Singo Dan
- Division of Molecular Pharmacology; Cancer Chemotherapy Centre; Japanese Foundation for Cancer Research; 3-8-31 Ariake, Koto-ku 135-8550 Tokyo Japan
| | - Takao Yamori
- Division of Molecular Pharmacology; Cancer Chemotherapy Centre; Japanese Foundation for Cancer Research; 3-8-31 Ariake, Koto-ku 135-8550 Tokyo Japan
- Pharmaceuticals and Medical Devices Agency (PMDA); 3-3-2 Kasumigaseki, Chiyoda-ku 100-0013 Tokyo Japan
| | - Akihiro Ito
- RIKEN; Chemical Genetics Laboratory; 2-1 Hirosawa 351-0198 Wako-shi Saitama Japan
| | - Minoru Yoshida
- RIKEN; Chemical Genetics Laboratory; 2-1 Hirosawa 351-0198 Wako-shi Saitama Japan
| | - Tadashi Katoh
- Laboratory of Synthetic and Medicinal Chemistry; Faculty of Pharmaceutical Sciences; Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
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107
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Agrawal S, Adholeya A, Deshmukh SK. The Pharmacological Potential of Non-ribosomal Peptides from Marine Sponge and Tunicates. Front Pharmacol 2016; 7:333. [PMID: 27826240 PMCID: PMC5078478 DOI: 10.3389/fphar.2016.00333] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 09/07/2016] [Indexed: 12/18/2022] Open
Abstract
Marine biodiversity is recognized by a wide and unique array of fascinating structures. The complex associations of marine microorganisms, especially with sponges, bryozoans, and tunicates, make it extremely difficult to define the biosynthetic source of marine natural products or to deduce their ecological significance. Marine sponges and tunicates are important source of novel compounds for drug discovery and development. Majority of these compounds are nitrogen containing and belong to non-ribosomal peptide (NRPs) or mixed polyketide-NRP natural products. Several of these peptides are currently under trial for developing new drugs against various disease areas, including inflammatory, cancer, neurodegenerative disorders, and infectious disease. This review features pharmacologically active NRPs from marine sponge and tunicates based on their biological activities.
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Affiliation(s)
| | | | - Sunil K. Deshmukh
- TERI–Deakin Nano Biotechnology Centre, The Energy and Resources InstituteNew Delhi, India
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108
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Narita K, Matsuhara K, Itoh J, Akiyama Y, Dan S, Yamori T, Ito A, Yoshida M, Katoh T. Synthesis and biological evaluation of novel FK228 analogues as potential isoform selective HDAC inhibitors. Eur J Med Chem 2016; 121:592-609. [DOI: 10.1016/j.ejmech.2016.05.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 05/14/2016] [Accepted: 05/16/2016] [Indexed: 11/25/2022]
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109
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Ding LJ, Yuan W, Liao XJ, Han BN, Wang SP, Li ZY, Xu SH, Zhang W, Lin HW. Oryzamides A-E, Cyclodepsipeptides from the Sponge-Derived Fungus Nigrospora oryzae PF18. JOURNAL OF NATURAL PRODUCTS 2016; 79:2045-2052. [PMID: 27489998 DOI: 10.1021/acs.jnatprod.6b00349] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Three new cyclohexadepsipeptides, oryzamides A-C (1-3), two isolation artifacts, oryzamides D (4) and E (5), and the known congener scopularide A (6), all possessing a rare 3-hydroxy-4-methyldecanoic acid (HMDA) substructure, were isolated from the mycelial extract of the sponge-derived fungus Nigrospora oryzae PF18. Their planar structures were elucidated by spectroscopic analysis and comparison with the literature data. The absolute configurations were determined using the advanced Marfey's method and single-crystal X-ray diffraction analysis. Among them, oryzamides D (4) and E (5) were a pair of diastereomers at the sulfur atom of the l-methionine sulfoxide residue, which showcased the possible separation of a pair of methionine sulfoxide diastereomers. The X-ray crystal structure of scopularide A (6) was obtained for the first time, thereby establishing its relative and absolute configuration at C-4 of the HMDA residue. Oryzamides A-C (1-3) did not display cytotoxic, antibacterial, antiparasitic, and NF-κB inhibitory activities.
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Affiliation(s)
- Li-Jian Ding
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200127, People's Republic of China
- College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Wei Yuan
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200127, People's Republic of China
| | - Xiao-Jian Liao
- College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Bing-Nan Han
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200127, People's Republic of China
| | - Shu-Ping Wang
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200127, People's Republic of China
| | - Zhi-Yong Li
- Key Laboratory of Microbial Metabolism, Marine Biotechnology Laboratory, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai 200240, People's Republic of China
| | - Shi-Hai Xu
- College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Wei Zhang
- Center for Marine Bioproducts Development, Flingers University , Adelaide 5001, Australia
| | - Hou-Wen Lin
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai 200127, People's Republic of China
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Chan KL, van der Weyden C, Khoo C, Lade S, Blombery P, Westerman D, Khot A, Melo B, Johnstone RW, Prince HM, Dickinson M. Durable clinical remission induced by romidepsin for chemotherapy-refractory peripheral T-cell lymphoma with central nervous system involvement. Leuk Lymphoma 2016; 58:996-998. [PMID: 27558082 DOI: 10.1080/10428194.2016.1222375] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Kah-Lok Chan
- a Department of Haematology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia
| | - Carrie van der Weyden
- a Department of Haematology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia
| | - Christine Khoo
- b Department of Anatomical Pathology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia
| | - Stephen Lade
- b Department of Anatomical Pathology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia
| | - Piers Blombery
- a Department of Haematology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia
| | - David Westerman
- a Department of Haematology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia.,c The Sir Peter MacCallum Department of Oncology , The University of Melbourne, Melbourne , Melbourne , Victoria , Australia
| | - Amit Khot
- a Department of Haematology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia
| | - Brian Melo
- d Celgene Corporation , Summit , NJ , USA
| | - Ricky W Johnstone
- c The Sir Peter MacCallum Department of Oncology , The University of Melbourne, Melbourne , Melbourne , Victoria , Australia.,e Peter MacCallum Cancer Centre, Cancer Therapeutics Program , Melbourne , Victoria , Australia
| | - H Miles Prince
- a Department of Haematology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia.,c The Sir Peter MacCallum Department of Oncology , The University of Melbourne, Melbourne , Melbourne , Victoria , Australia
| | - Michael Dickinson
- a Department of Haematology , Peter MacCallum Cancer Centre , Melbourne , Victoria , Australia
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111
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Okada K, Hakata S, Terashima J, Gamou T, Habano W, Ozawa S. Combination of the histone deacetylase inhibitor depsipeptide and 5-fluorouracil upregulates major histocompatibility complex class II and p21 genes and activates caspase-3/7 in human colon cancer HCT-116 cells. Oncol Rep 2016; 36:1875-85. [PMID: 27509880 PMCID: PMC5022900 DOI: 10.3892/or.2016.5008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 07/14/2016] [Indexed: 12/22/2022] Open
Abstract
Epigenetic anticancer drugs such as histone deacetylase (HDAC) inhibitors have been combined with existing anticancer drugs for synergistic or additive effects. In the present study, we found that a very low concentration of depsipeptide, an HDAC inhibitor, potentiated the antitumor activity of 5-fluorouracil (5-FU) in a human colon cancer cell model using HCT-116, HT29, and SW48 cells via the inhibition of colony formation ability or cellular viability. Exposure to a combination of 5-FU (1.75 µM) and 1 nM depsipeptide for 24 and 48 h resulted in a 3- to 4-fold increase in activated caspase-3/7, while 5-FU alone failed to activate caspase-3/7. Microarray and subsequent gene ontology analyses revealed that compared to 5-FU or depsipeptide alone, the combination treatment of 5-FU and depsipeptide upregulated genes related to cell death and the apoptotic process consistent with the inhibition of colony formation and caspase-3/7 activation. These analyses indicated marked upregulation of antigen processing and presentation of peptide or polysaccharide antigen via major histocompatibility complex (MHC) class (GO:0002504) and MHC protein complex (GO:0042611). Compared with vehicle controls, the cells treated with the combination of 5-FU and depsipeptide showed marked induction (3- to 8.5-fold) of expression of MHC class II genes, but not of MHC class I genes. Furthermore, our global analysis of gene expression, which was focused on genes involved in the molecular regulation of MHC class II genes, showed enhancement of pro-apoptotic PCAF and CIITA after the combination of 5-FU and depsipeptide. These results may indicate a closer relationship between elevation of MHC class II expression and cellular apoptosis induced by the combination of depsipeptide and 5-FU. To the best of our knowledge, this is the first study to report that the combination of 5-FU and depsipeptide induces human colon cancer cell apoptosis in a concerted manner with the induction of MHC class II gene expression.
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Affiliation(s)
- Kouji Okada
- Department of Pharmacodynamics and Molecular Genetics, School of Pharmacy, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan
| | - Shuko Hakata
- Department of Pharmacodynamics and Molecular Genetics, School of Pharmacy, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan
| | - Jun Terashima
- Department of Pharmacodynamics and Molecular Genetics, School of Pharmacy, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan
| | - Toshie Gamou
- Department of Pharmacodynamics and Molecular Genetics, School of Pharmacy, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan
| | - Wataru Habano
- Department of Pharmacodynamics and Molecular Genetics, School of Pharmacy, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan
| | - Shogo Ozawa
- Department of Pharmacodynamics and Molecular Genetics, School of Pharmacy, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan
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112
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Histone deacetylase 3 (HDAC 3) as emerging drug target in NF-κB-mediated inflammation. Curr Opin Chem Biol 2016; 33:160-8. [PMID: 27371876 DOI: 10.1016/j.cbpa.2016.06.019] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 06/15/2016] [Accepted: 06/16/2016] [Indexed: 12/17/2022]
Abstract
Activation of inflammatory gene expression is regulated, among other factors, by post-translational modifications of histone proteins. The most investigated type of histone modifications is lysine acetylations. Histone deacetylases (HDACs) remove acetylations from lysines, thereby influencing (inflammatory) gene expression. Intriguingly, apart from histones, HDACs also target non-histone proteins. The nuclear factor κB (NF-κB) pathway is an important regulator in the expression of numerous inflammatory genes, and acetylation plays a crucial role in regulating its responses. Several studies have shed more light on the role of HDAC 1-3 in inflammation with a particular pro-inflammatory role for HDAC 3. Nevertheless, the HDAC-NF-κB interactions in inflammatory signalling have not been fully understood. An important challenge in targeting the regulatory role of HDACs in the NF-κB pathway is the development of highly potent small molecules that selectively target HDAC iso-enzymes. This review focuses on the role of HDAC 3 in (NF-κB-mediated) inflammation and NF-κB lysine acetylation. In addition, we address the application of frequently used small molecule HDAC inhibitors as an approach to attenuate inflammatory responses, and their potential as novel therapeutics. Finally, recent progress and future directions in medicinal chemistry efforts aimed at HDAC 3-selective inhibitors are discussed.
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113
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Harmon N, Mortensen JE, Robinette E, Powell EA. Pediatric bacteremia caused by Chromobacterium haemolyticum/Chromobacterium aquaticum. Diagn Microbiol Infect Dis 2016; 86:108-11. [PMID: 27344541 DOI: 10.1016/j.diagmicrobio.2016.05.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 05/24/2016] [Accepted: 05/29/2016] [Indexed: 01/08/2023]
Abstract
We present a case of pediatric bacteremia caused by Chromobacterium haemolyticum, a β-hemolytic, non-pigmented, Gram-negative bacilli recovered from a blood culture and initially identified as Chromobacterium violaceum using phenotypic and proteomic methods. 16S rRNA sequencing of the patient isolated demonstrated a high degree of sequence homology with the type strain of C. haemolyticum. The patient recovered following treatment with meropenem, gentamicin, and trimethoprim/sulfamethoxazole. This case highlights the potential misidentification of C. haemolyticum as non-pigmented C. violaceum due to limitations of the currently available identification methodologies.
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Affiliation(s)
- Nicole Harmon
- Diagnostic Infectious Disease Testing Laboratory, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Joel E Mortensen
- Diagnostic Infectious Disease Testing Laboratory, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
| | - Eric Robinette
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Eleanor A Powell
- Diagnostic Infectious Disease Testing Laboratory, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
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Valdez BC, Brammer JE, Li Y, Murray D, Teo EC, Liu Y, Hosing C, Nieto Y, Champlin RE, Andersson BS. Romidepsin enhances the cytotoxicity of fludarabine, clofarabine and busulfan combination in malignant T-cells. Leuk Res 2016; 47:100-8. [PMID: 27294334 DOI: 10.1016/j.leukres.2016.05.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/06/2016] [Accepted: 05/26/2016] [Indexed: 11/18/2022]
Abstract
Novel approaches to pre-transplant conditioning are needed to improve treatment of advanced T-cell malignancies. We investigated the synergism of fludarabine (Flu), clofarabine (Clo), busulfan (Bu), and romidepsin (Rom) in T-cell lines and patient-derived cell samples. [Flu+Clo+Bu+Rom] had combination indexes of 0.4-0.5 at ∼50% cytotoxicity in PEER and SUPT1 cells, suggesting synergism. Drug exposure resulted in histone modifications, DNA-damage response (DDR), increased reactive oxygen species (ROS), decreased glutathione (GSH) and mitochondrial membrane (MM) potential, and apoptosis. Similar activation of DDR and apoptosis was observed in patient samples. The PI3K-AKT-mTOR, NFκB, Raf-MEK-ERK, JAK-STAT and Wnt/β-catenin pro-survival pathways were inhibited by the 4-drug combination. The SAPK/JNK stress pathway was activated. A novel finding was the down-regulation of the drug transporter MRP1. We propose the following mechanisms of synergism: Flu, Clo and Rom induce histone modifications and chromatin remodeling, exposing DNA to Bu alkylation; the increased production of ROS, due to drug-mediated stress response and decreased GSH, damages the MM causing leakage of pro-apoptotic factors; down-regulation of MRP1 increases intracellular Bu concentration and exacerbates the DDR; and inhibition of multiple survival pathways. Our results provide the basis for a clinical trial to evaluate [Flu+Clo+Bu+Rom] as part of conditioning regimen for refractory T-cell malignancy patients undergoing stem cell transplantation.
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Affiliation(s)
- Benigno C Valdez
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Jonathan E Brammer
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yang Li
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - David Murray
- Department of Experimental Oncology, Cross Cancer Institute, Edmonton, Alberta, Canada
| | - Esmeralda C Teo
- Department of Hematology, Singapore General Hospital, Level 3 Academia, 20 College Road, Singapore, Singapore
| | - Yan Liu
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chitra Hosing
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yago Nieto
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Richard E Champlin
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Borje S Andersson
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
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115
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Bian J, Luan Y, Wang C, Zhang L. Discovery of N-hydroxy-4-(1H-indol-3-yl)butanamide as a histone deacetylase inhibitor. Drug Discov Ther 2016; 10:163-6. [PMID: 27169369 DOI: 10.5582/ddt.2016.01031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The indoles plant growth hormones have exhibited potentially antitumor activities. However, the targets of these indoles have not been clearly elucidated. By introduction of hydroxamic acid group to the structure of indolebutyric acid, the derived molecule (IBHA) exhibited potent HDAC2 (IC50 value of 0.32 ± 0.02 µM) and HDAC3 (IC50 value of 0.14 ± 0.01 µM) inhibitory activities compared with SAHA (IC50 value of 1.25 ± 0.06 µM and 0.97 ± 0.04 µM against HDAC2 and HDAC3). In the antiproliferative assays, the tested hematologic cell lines (U937 and K562) are more sensitive to IBHA than the solid tumor cell lines (MDA-MB-231 and PC-3). In the docking studies, the derived molecule (IBHA) could bind to the active site of human HDAC2 and HDAC3 by strong H-bond interactions and hydrophobic interactions. Pharmacophore mapping results revealed that properties of IBHA matches the receptor (HDAC3) based pharmacophore model.
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116
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Rehman MU, Jawaid P, Zhao QL, Li P, Narita K, Katoh T, Shimizu T, Kondo T. Low-dose spiruchostatin-B, a potent histone deacetylase inhibitor enhances radiation-induced apoptosis in human lymphoma U937 cells via modulation of redox signaling. Free Radic Res 2016; 50:596-610. [PMID: 27108737 DOI: 10.3109/10715762.2015.1115029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Spiruchostatin B (SP-B), is a potent histone deacetylase (HDAC) inhibitor, in addition to HDAC inhibition, the pharmacological effects of SP-B are also attributed to its ability to produce intracellular reactive oxygen species (ROS), particularly H2O2. In this study, we investigated the effects of low dose (non-toxic) SP-B on radiation-induced apoptosis in human lymphoma U937 cells in vitro. The treatment of cells with low-dose SP-B induced the acetylation of histones, however, does not induce apoptosis. Whereas, the combined treatment with SP-B and radiation significantly enhanced the radiation-induced apoptosis, suggesting the potential role of this combined treatment for future radiation therapy. Interestingly, the enhancement of apoptosis was accompanied by significant increased in the ROS generation. Pre-treatment with an antioxidant, N-acetyl-l-cysteine (NAC) significantly inhibited the enhancement of apoptosis induced by combined treatment, indicating that ROS play an essential role. It was also found that SP-B combined with radiation caused the activation of death receptor and intrinsic apoptotic pathways, via modulation of ROS-mediated signaling. Moreover, SP-B also significantly enhanced the radiation-induced apoptosis in other lymphoma cell lines such as Molt-4 and HL-60. Taken together, our findings suggest that the low-dose SP-B enhances radiation-induced apoptosis via modulation of redox signaling because of its ability to serve as an intracellular ROS generating agent, mainly (H2O2 or [Formula: see text]). This study provides further insights into the mechanism of action of SP-B with radiation and demonstrates that SP-B can be used as a future novel sensitizer for radiation therapy.
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Affiliation(s)
- Mati Ur Rehman
- a Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama , Toyama , Japan
| | - Paras Jawaid
- a Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama , Toyama , Japan
| | - Qing Li Zhao
- a Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama , Toyama , Japan
| | - Peng Li
- a Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama , Toyama , Japan
| | - Koichi Narita
- b Laboratory of Synthetic and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University , Aoba-ku, Sendai , Japan
| | - Tadashi Katoh
- b Laboratory of Synthetic and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University , Aoba-ku, Sendai , Japan
| | - Tadamichi Shimizu
- c Department of Dermatology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama , Toyama , Japan
| | - Takashi Kondo
- a Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama , Toyama , Japan
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Chang J, Kwon HJ. Discovery of novel drug targets and their functions using phenotypic screening of natural products. ACTA ACUST UNITED AC 2016; 43:221-31. [DOI: 10.1007/s10295-015-1681-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 08/27/2015] [Indexed: 12/27/2022]
Abstract
Abstract
Natural products are valuable resources that provide a variety of bioactive compounds and natural pharmacophores in modern drug discovery. Discovery of biologically active natural products and unraveling their target proteins to understand their mode of action have always been critical hurdles for their development into clinical drugs. For effective discovery and development of bioactive natural products into novel therapeutic drugs, comprehensive screening and identification of target proteins are indispensable. In this review, a systematic approach to understanding the mode of action of natural products isolated using phenotypic screening involving chemical proteomics-based target identification is introduced. This review highlights three natural products recently discovered via phenotypic screening, namely glucopiericidin A, ecumicin, and terpestacin, as representative case studies to revisit the pivotal role of natural products as powerful tools in discovering the novel functions and druggability of targets in biological systems and pathological diseases of interest.
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Affiliation(s)
- Junghwa Chang
- grid.15444.30 0000000404705454 Department of Biotechnology, Translational Research Center for Protein Function Control, College of Life Science and Biotechnology Yonsei University 120-749 Seoul Republic of Korea
| | - Ho Jeong Kwon
- grid.15444.30 0000000404705454 Department of Biotechnology, Translational Research Center for Protein Function Control, College of Life Science and Biotechnology Yonsei University 120-749 Seoul Republic of Korea
- grid.15444.30 0000000404705454 Department of Internal Medicine, College of Medicine Yonsei University 120-752 Seoul Republic of Korea
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118
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Mang CY, Liu CP, Wu KC, Li HF, Yang MH, Zhang CG, Zhao Y. Density functional study of conformational states for burkholdac C, a biologically active bicyclic depsipeptide from the bacterium Burkholderia Thailandensis. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1112924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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119
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Fadeyi OO, Mousseau JJ, Feng Y, Allais C, Nuhant P, Chen MZ, Pierce B, Robinson R. Visible-Light-Driven Photocatalytic Initiation of Radical Thiol–Ene Reactions Using Bismuth Oxide. Org Lett 2015; 17:5756-9. [DOI: 10.1021/acs.orglett.5b03184] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Olugbeminiyi O. Fadeyi
- Worldwide Medicinal Chemistry, Pfizer, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - James J. Mousseau
- Worldwide Medicinal Chemistry, Pfizer, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Yiqing Feng
- Worldwide Medicinal Chemistry, Pfizer, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Christophe Allais
- Worldwide Medicinal Chemistry, Pfizer, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Philippe Nuhant
- Worldwide Medicinal Chemistry, Pfizer, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Ming Z. Chen
- Worldwide Medicinal Chemistry, Pfizer, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Betsy Pierce
- Worldwide Medicinal Chemistry, Pfizer, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Ralph Robinson
- Worldwide Medicinal Chemistry, Pfizer, 445 Eastern Point Road, Groton, Connecticut 06340, United States
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Abstract
Cyclic depsipeptides are polypeptides in which one or more amino acid is replaced by a hydroxy acid, resulting in the formation of at least one ester bond in the core ring structure. Many natural cyclic depsipeptides possessing intriguing structural and biological properties, including antitumor, antifungal, antiviral, antibacterial, anthelmintic, and anti-inflammatory activities, have been identified from fungi, plants, and marine organisms. In particular, the potent effects of cyclic depsipeptides on tumor cells have led to a number of clinical trials evaluating their potential as chemotherapeutic agents. Although many of the trials have not achieved the desired results, romidepsin (FK228), a bicyclic depsipeptide that inhibits histone deacetylase, has been shown to have clinical efficacy in patients with refractory cutaneous T-cell lymphoma and has received Food and Drug Administration approval for use in treatment. In this review, we discuss antitumor cyclic depsipeptides that have undergone clinical trials and focus on their structural features, mechanisms, potential applications in chemotherapy, and pharmacokinetic and toxicity data. The results of this study indicate that cyclic depsipeptides could be a rich source of new cancer therapeutics.
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121
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Romidepsin targets multiple survival signaling pathways in malignant T cells. Blood Cancer J 2015; 5:e357. [PMID: 26473529 PMCID: PMC4635192 DOI: 10.1038/bcj.2015.83] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 09/02/2015] [Indexed: 01/24/2023] Open
Abstract
Romidepsin is a cyclic molecule that inhibits histone deacetylases. It is Food and Drug Administration-approved for treatment of cutaneous and peripheral T-cell lymphoma, but its precise mechanism of action against malignant T cells is unknown. To better understand the biological effects of romidepsin in these cells, we exposed PEER and SUPT1 T-cell lines, and a primary sample from T-cell lymphoma patient (Patient J) to romidepsin. We then examined the consequences in some key oncogenic signaling pathways. Romidepsin displayed IC50 values of 10.8, 7.9 and 7.0 nm in PEER, SUPT1 and Patient J cells, respectively. Strong inhibition of histone deacetylases and demethylases, increased production of reactive oxygen species and decreased mitochondrial membrane potential were observed, which may contribute to the observed DNA-damage response and apoptosis. The stress-activated protein kinase/c-Jun N-terminal kinase signaling pathway and unfolded protein response in the endoplasmic reticulum were activated, whereas the phosphatidylinositol 3-kinase/AKT/mammalian target of rapamycin (PI3K/AKT/mTOR) and β-catenin pro-survival pathways were inhibited. The decreased level of β-catenin correlated with the upregulation of its inhibitor SFRP1 through romidepsin-mediated hypomethylation of its gene promoter. Our results provide new insights into how romidepsin invokes malignant T-cell killing, show evidence of its associated DNA hypomethylating activity and offer a rationale for the development of romidepsin-containing combination therapies.
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122
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van der Weyden C, Dickinson M, Bates SE, Prince HM. Use of romidepsin for the treatment of mycosis fungoides and Sezary syndrome – role of romidepsin in the current therapeutic landscape and implications for future practice. Expert Opin Orphan Drugs 2015. [DOI: 10.1517/21678707.2015.1089169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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123
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Kim B, Hong J. An overview of naturally occurring histone deacetylase inhibitors. Curr Top Med Chem 2015; 14:2759-82. [PMID: 25487010 DOI: 10.2174/1568026615666141208105614] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 11/26/2014] [Accepted: 11/29/2014] [Indexed: 12/13/2022]
Abstract
Histone deacetylases (HDACs) have recently emerged as key elements in epigenetic control of gene expression. Due to the implication of HDACs in a variety of diseases ranging from cancer to neurodegenerative disorder, HDAC inhibitors have received increased attention in recent years. Over the last few decades, a myriad of HDAC inhibitors containing a wide variety of structural features have been identified from natural sources. Here, we review the discovery, synthesis, biological properties, and modes of action of these naturally occurring HDAC inhibitors and consider their implications for future research.
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Affiliation(s)
| | - Jiyong Hong
- Duke University, Department of Chemistry, 124 Science Drive, Box 90346, Durham, NC 27708, USA.
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Masoud GN, Li W. HIF-1α pathway: role, regulation and intervention for cancer therapy. Acta Pharm Sin B 2015; 5:378-89. [PMID: 26579469 PMCID: PMC4629436 DOI: 10.1016/j.apsb.2015.05.007] [Citation(s) in RCA: 1278] [Impact Index Per Article: 142.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 05/08/2015] [Indexed: 12/18/2022] Open
Abstract
Hypoxia-inducible factor-1 (HIF-1) has been recognized as an important cancer drug target. Many recent studies have provided convincing evidences of strong correlation between elevated levels of HIF-1 and tumor metastasis, angiogenesis, poor patient prognosis as well as tumor resistance therapy. It was found that hypoxia (low O2 levels) is a common character in many types of solid tumors. As an adaptive response to hypoxic stress, hypoxic tumor cells activate several survival pathways to carry out their essential biological processes in different ways compared with normal cells. Recent advances in cancer biology at the cellular and molecular levels highlighted the HIF-1α pathway as a crucial survival pathway for which novel strategies of cancer therapy could be developed. However, targeting the HIF-1α pathway has been a challenging but promising progresses have been made in the past twenty years. This review summarizes the role and regulation of the HIF-1α in cancer, and recent therapeutic approaches targeting this important pathway.
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Key Words
- 4E-BP1, eukaryotic translation initiation factor 4E (eIF-4E) binding protein p70 S6 kinase (S6K)
- ADM, adrenomedullin
- AKt, protein kinase B
- ARD-1, arrest-defective-1
- ARNT, aryl hydrocarbon nuclear translocator
- AhR, aryl hydrocarbon receptor
- C-MYC, myelocytomatosis virus oncogene cellular homolog
- C-TAD, COOH-terminal TAD
- CAC, circulating angiogenic cells
- CPTs, camptothecins
- Cancer drug discovery and development
- ChIP, chromatin immunoprecipitation
- CoCl2, cobalt chloride
- DFO, deferoxamine
- EGF, epidermal growth factor
- ELISA, enzyme-linked immunosorbent assay
- EMSA, electrophoretic mobility shift assay
- EPO, erythropoietin
- ERK, extracellular signal-regulated kinase
- FIH-1, factor inhibiting HIF-1
- GA, geldanamycin
- GAs, geldanamycins
- GLUT1, glucose transporter 1
- GLUT3, glucose transporter 3
- GLUTs, glucose transporters
- HDAC, histone deacetylase
- HIF-1α
- HIF-1α inhibitors
- HIF-1α, hypoxia-inducible factor-1α
- HK1, hexokinase 1
- HK2, hexokinase 2
- HPH, HIF-1 prolyl hydroxylases
- HRE, hypoxia response elements
- HTS, high throughput screens
- Hsp90, heat shock protein 90
- ID2, DNA-binding protein inhibitor
- IGF-BP2, IGF-factor-binding protein 2
- IGF-BP3, IGF-factor-binding protein 3
- IGF2, insulin-like growth factor 2
- IPAS, inhibitory PAS
- K, lysine residue
- LDHA, lactate dehydrogenase
- LEP, leptin
- LRP1, LDL-receptor-related protein 1
- Luc, luciferase
- MAPK, mitogen-activated protein kinases
- MEK, MAPK/ERK kinase
- MNK, MAP kinase interacting kinase
- MTs, microtubules
- Mdm2, mouse double minute 2 homolog
- N, asparagine residue
- N-TAD, NH2-terminal TAD
- NOS, nitric oxide synthase
- ODDD, oxygen dependent degradation domain
- P, proline residue
- PAS, Per and Sim
- PCAF, p300/CBP associated factor
- PHDs, prolyl-4-hydroxylases
- PI3K, phosphatidyl inositol-4,5-bisphosphate-3-kinase
- PKM, pyruvate kinase M
- RCC, renal cell carcinoma
- RT-PCR, reverse transcription polymerase chain reaction
- Raf, rapidly accelerated fibrosarcoma
- Ras, rat sarcoma
- SIRT 1, Sirtuin 1
- TAD, transactivation domains
- TGF-α, transforming growth factor α
- TGF-β3, transforming growth factor beta3
- TPT, topotecan
- Top I, topoisomerase I
- VEGF, vascular endothelial growth factor
- bHLH, basic-helix-loop-helix
- eIF-4E, eukaryotic translation initiation factor 4E
- mTOR, mammalian target of rapamycin
- pVHL, von Hippel-Lindau protein
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Affiliation(s)
| | - Wei Li
- Department of Pharmaceutical Sciences, College of Pharmacy, the University of Tennessee Health Science Center, Memphis, TN 38163, USA
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125
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Mottamal M, Zheng S, Huang TL, Wang G. Histone deacetylase inhibitors in clinical studies as templates for new anticancer agents. Molecules 2015; 20:3898-941. [PMID: 25738536 PMCID: PMC4372801 DOI: 10.3390/molecules20033898] [Citation(s) in RCA: 480] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 02/13/2015] [Accepted: 02/15/2015] [Indexed: 02/04/2023] Open
Abstract
Histone dacetylases (HDACs) are a group of enzymes that remove acetyl groups from histones and regulate expression of tumor suppressor genes. They are implicated in many human diseases, especially cancer, making them a promising therapeutic target for treatment of the latter by developing a wide variety of inhibitors. HDAC inhibitors interfere with HDAC activity and regulate biological events, such as cell cycle, differentiation and apoptosis in cancer cells. As a result, HDAC inhibitor-based therapies have gained much attention for cancer treatment. To date, the FDA has approved three HDAC inhibitors for cutaneous/peripheral T-cell lymphoma and many more HDAC inhibitors are in different stages of clinical development for the treatment of hematological malignancies as well as solid tumors. In the intensifying efforts to discover new, hopefully more therapeutically efficacious HDAC inhibitors, molecular modeling-based rational drug design has played an important role in identifying potential inhibitors that vary in molecular structures and properties. In this review, we summarize four major structural classes of HDAC inhibitors that are in clinical trials and different computer modeling tools available for their structural modifications as a guide to discover additional HDAC inhibitors with greater therapeutic utility.
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Affiliation(s)
- Madhusoodanan Mottamal
- RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
- Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125, USA.
| | - Shilong Zheng
- RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
- Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125, USA.
| | - Tien L Huang
- RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
- College of Pharmacy, Xavier University of Louisiana, New Orleans, LA 70125, USA.
| | - Guangdi Wang
- RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
- Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125, USA.
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126
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Héninger E, Krueger TEG, Lang JM. Augmenting antitumor immune responses with epigenetic modifying agents. Front Immunol 2015; 6:29. [PMID: 25699047 PMCID: PMC4316783 DOI: 10.3389/fimmu.2015.00029] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 01/14/2015] [Indexed: 12/31/2022] Open
Abstract
Epigenetic silencing of immune-related genes is a striking feature of the cancer genome that occurs in the process of tumorigenesis. This phenomena impacts antigen processing and antigen presentation by tumor cells and facilitates evasion of immunosurveillance. Further modulation of the tumor microenvironment by altered expression of immunosuppressive cytokines impairs antigen-presenting cells and cytolytic T-cell function. The potential reversal of immunosuppression by epigenetic modulation is therefore a promising and versatile therapeutic approach to reinstate endogenous immune recognition and tumor lysis. Pre-clinical studies have identified multiple elements of the immune system that can be modulated by epigenetic mechanisms and result in improved antigen presentation, effector T-cell function, and breakdown of suppressor mechanisms. Recent clinical studies are utilizing epigenetic therapies prior to, or in combination with, immune therapies to improve clinical outcomes.
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Affiliation(s)
- Erika Héninger
- University of Wisconsin Carbone Cancer Center , Madison, WI , USA
| | | | - Joshua M Lang
- University of Wisconsin Carbone Cancer Center , Madison, WI , USA ; Department of Medicine, University of Wisconsin , Madison, WI , USA
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127
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Tan S, Liu ZP. Natural Products as Zinc-Dependent Histone Deacetylase Inhibitors. ChemMedChem 2015; 10:441-50. [DOI: 10.1002/cmdc.201402460] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Indexed: 12/21/2022]
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128
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Zhou Z, Wang X, Zhang H, Sun J, Zheng L, Liu H, Wang J, Shen A, Geng M, Guo Y. Chromopeptide A, a highly cytotoxic depsipeptide from the marine sediment-derived bacterium Chromobacterium sp. HS-13-94. Acta Pharm Sin B 2015; 5:62-6. [PMID: 26579426 PMCID: PMC4629120 DOI: 10.1016/j.apsb.2014.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/06/2014] [Accepted: 11/13/2014] [Indexed: 11/22/2022] Open
Abstract
A bicyclic depsipeptide, chromopeptide A (1), was isolated from a deep-sea-derived bacterium Chromobacterium sp. HS-13-94. Its structure was determined by extensive spectroscopic analysis and by comparison with a related known compound. The absolute configuration of chromopeptide A was established by X-ray diffraction analysis employing graphite monochromated Mo Kα radiation (λ=0.71073 Å) with small Flack parameter 0.03. Chromopeptide A suppressed the proliferation of HL-60, K-562, and Ramos cells with average IC50 values of 7.7, 7.0, and 16.5 nmol/L, respectively.
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129
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Abstract
α,β-Dehydroamino acids are naturally occurring non-coded amino acids, found primarily in peptides. The review focuses on the type of α,β-dehydroamino acids, the structure of dehydropeptides, the source of their origin and bioactivity. Dehydropeptides are isolated primarily from bacteria and less often from fungi, marine invertebrates or even higher plants. They reveal mainly antibiotic, antifungal, antitumour, and phytotoxic activity. More than 60 different structures were classified, which often cover broad families of peptides. 37 different structural units containing the α,β-dehydroamino acid residues were shown including various side chains, Z and E isomers, and main modifications: methylation of peptide bond as well as the introduction of ester group and heterocycle ring. The collected data show the relation between the structure and bioactivity. This allows the activity of compounds, which were not studied in this field, but which belong to a larger peptide family to be predicted. A few examples show that the type of the geometrical isomer of the α,β-dehydroamino acid residue can be important or even crucial for biological activity.
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Affiliation(s)
- Dawid Siodłak
- Faculty of Chemistry, University of Opole, Oleska, 48 45-052, Opole, Poland,
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130
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Abstract
This review highlights known disulfide-bridged peptide bicycles and the studies on their unique structural and biological features.
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Affiliation(s)
| | - Andrei K. Yudin
- Lash Miller Chemical Laboratories
- University of Toronto
- Toronto
- Canada M5S 3H6
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131
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Tsakos M, Schaffert ES, Clement LL, Villadsen NL, Poulsen TB. Ester coupling reactions – an enduring challenge in the chemical synthesis of bioactive natural products. Nat Prod Rep 2015; 32:605-32. [DOI: 10.1039/c4np00106k] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this review we investigate the use of complex ester fragment couplings within natural product total syntheses. Using examples from the literature up to 2014 we illustrate the state-of-the-art as well as the challenges within this area of organic synthesis.
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Affiliation(s)
- Michail Tsakos
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| | - Eva S. Schaffert
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| | - Lise L. Clement
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| | - Nikolaj L. Villadsen
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
| | - Thomas B. Poulsen
- Chemical Biology Laboratory
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
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132
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Thaler F, Mercurio C. Towards selective inhibition of histone deacetylase isoforms: what has been achieved, where we are and what will be next. ChemMedChem 2014; 9:523-6. [PMID: 24730063 DOI: 10.1002/cmdc.201300413] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Histone deacetylases (HDACs) are widely studied targets for the treatment of cancer and other diseases. Up to now, over twenty HDAC inhibitors have entered clinical studies and two of them have already reached the market, namely the hydroxamic acid derivative SAHA (vorinostat, Zolinza) and the cyclic depsipeptide FK228 (romidepsin, Istodax) that have been approved for the treatment of cutaneous T-cell lymphoma (CTCL). A common aspect of the first HDAC inhibitors is the absence of any particular selectivity towards specific isozymes. Some of molecules resulted to be “pan”-HDAC inhibitors, while others are class I selective. In the meantime, the knowledge of HDAC biology has continuously progressed. Key advances in the structural biology of various isozymes, reliable molecular homology models as well as suitable biological assays have provided new tools for drug discovery activities. This Minireview aims at surveying these recent developments as well as the design, synthesis and biological characterization of isoform-selective derivatives.
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Zhang L, Xu W. Histone deacetylase inhibitors for enhancing activity of antifungal agent: a patent evaluation of WO2014041424(A1). Expert Opin Ther Pat 2014; 25:237-40. [PMID: 25381141 DOI: 10.1517/13543776.2014.981256] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Novel histone deacetylase inhibitors have been developed for the antifungal therapy. Molecule 8 exhibited potent antifungal activities with MIC values of 0.25/0.25, 0.12/0.25, 0.12/0.12 µg/ml against Candida albicans, C. parapsilosis and C. glabrata after 24/48 h incubation, respectively. Most of the synthesized compound showed significantly synergistic effects with fluconazole in the biological assay. The discovery of these molecules makes positive contributions to the development of potent and safe antifungal drugs.
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Affiliation(s)
- Lei Zhang
- Qingdao University , Qingdao , China
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134
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Hill TA, Shepherd NE, Diness F, Fairlie DP. Constraining cyclic peptides to mimic protein structure motifs. Angew Chem Int Ed Engl 2014; 53:13020-41. [PMID: 25287434 DOI: 10.1002/anie.201401058] [Citation(s) in RCA: 306] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 04/02/2013] [Indexed: 12/18/2022]
Abstract
Many proteins exert their biological activities through small exposed surface regions called epitopes that are folded peptides of well-defined three-dimensional structures. Short synthetic peptide sequences corresponding to these bioactive protein surfaces do not form thermodynamically stable protein-like structures in water. However, short peptides can be induced to fold into protein-like bioactive conformations (strands, helices, turns) by cyclization, in conjunction with the use of other molecular constraints, that helps to fine-tune three-dimensional structure. Such constrained cyclic peptides can have protein-like biological activities and potencies, enabling their uses as biological probes and leads to therapeutics, diagnostics and vaccines. This Review highlights examples of cyclic peptides that mimic three-dimensional structures of strand, turn or helical segments of peptides and proteins, and identifies some additional restraints incorporated into natural product cyclic peptides and synthetic macrocyclic peptidomimetics that refine peptide structure and confer biological properties.
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Affiliation(s)
- Timothy A Hill
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072 (Australia)
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135
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Hill TA, Shepherd NE, Diness F, Fairlie DP. Fixierung cyclischer Peptide: Mimetika von Proteinstrukturmotiven. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201401058] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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136
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Oda A, Saijo K, Ishioka C, Narita K, Katoh T, Watanabe Y, Fukuyoshi S, Takahashi O. Predicting the structures of complexes between phosphoinositide 3-kinase (PI3K) and romidepsin-related compounds for the drug design of PI3K/histone deacetylase dual inhibitors using computational docking and the ligand-based drug design approach. J Mol Graph Model 2014; 54:46-53. [PMID: 25254927 DOI: 10.1016/j.jmgm.2014.08.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 08/09/2014] [Accepted: 08/30/2014] [Indexed: 01/07/2023]
Abstract
Predictions of the three-dimensional (3D) structures of the complexes between phosphoinositide 3-kinase (PI3K) and two inhibitors were conducted using computational docking and the ligand-based drug design approach. The obtained structures were refined by structural optimizations and molecular dynamics (MD) simulations. The ligands were located deep inside the ligand binding pocket of the p110α subunit of PI3K, and the hydrogen bond formations and hydrophobic effects of the surrounding amino acids were predicted. Although rough structures were obtained for the PI3K-inhibitor complexes before the MD simulations, the refinement of the structures by these simulations clarified the hydrogen bonding patterns of the complexes.
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Affiliation(s)
- Akifumi Oda
- Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Ishikawa, Japan; Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan; Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita 565-0871, Osaka, Japan.
| | - Ken Saijo
- Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku Sendai 980-8575, Miyagi, Japan
| | - Chikashi Ishioka
- Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku Sendai 980-8575, Miyagi, Japan
| | - Koichi Narita
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan
| | - Tadashi Katoh
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan
| | - Yurie Watanabe
- Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Ishikawa, Japan
| | - Shuichi Fukuyoshi
- Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Ishikawa, Japan
| | - Ohgi Takahashi
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan
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137
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Coiffier B, Federico M, Caballero D, Dearden C, Morschhauser F, Jäger U, Trümper L, Zucca E, Gomes da Silva M, Pettengell R, Weidmann E, d'Amore F, Tilly H, Zinzani PL. Therapeutic options in relapsed or refractory peripheral T-cell lymphoma. Cancer Treat Rev 2014; 40:1080-8. [PMID: 25199959 DOI: 10.1016/j.ctrv.2014.08.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 07/29/2014] [Accepted: 08/14/2014] [Indexed: 11/28/2022]
Abstract
Peripheral T-cell lymphoma (PTCL) represents a relatively rare group of heterogeneous non-Hodgkin lymphomas with a very poor prognosis. Current therapies, based on historical regimens for aggressive B-cell lymphomas, have resulted in insufficient patient outcomes. The majority of patients relapse rapidly, and current 5-year overall survival rates are only 10-30%. It is evident that new approaches to treat patients with PTCL are required. In recent years, prospective studies in PTCL have been initiated, mainly in patients with relapsed/refractory disease. In some of these, selected histologic subtypes have been evaluated in detail. As a consequence, numerous new therapies have been developed and shown activity in PTCL, including: agents targeting the immune system (e.g. brentuximab vedotin, alemtuzumab, lenalidomide); histone deacetylase inhibitors (romidepsin, belinostat); antifolates (pralatrexate); fusion proteins (denileukin diftitox); nucleoside analogs (pentostatin, gemcitabine); and other agents (e.g. alisertib, plitidepsin, bendamustine, bortezomib). A variety of interesting novel combinations is also emerging. It is hoped that these innovative approaches, coupled with a greater understanding of the clinicopathologic features, pathogenesis, molecular biology, and natural history of PTCL will advance the field and improve outcomes in this challenging group of diseases. This review summarizes the currently available clinical evidence on the various approaches to treating relapsed/refractory PTCL, including the role of stem cell transplantation, with an emphasis on potential new drug therapies.
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Affiliation(s)
| | - Massimo Federico
- Dipartimento di Medicina di Laboratorio, Clinica e di Sanità Pubblica, Università degli studi di Modena e Reggio Emilia, Policlinico, Via del Pozzo, 71, 41124 Modena, Italy.
| | - Dolores Caballero
- Instituto Biosanitario de Salamanca, Paseo de San Vicente 58-182, 37007 Salamanca, Spain.
| | - Claire Dearden
- Department of Haemato-Oncology, Royal Marsden Hospital, Downs Road, SM2 5PT Sutton, UK.
| | - Franck Morschhauser
- Department of Hematology, University Hospital of Lille, F-59037 Lille, France.
| | - Ulrich Jäger
- Medical University of Vienna, Department of Medicine I, Division of Hematology and Hemostaseology, Comprehensive Cancer Center, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Lorenz Trümper
- UniversitätsKrebszentrum (G-CCC), Georg August University, 37099 Göttingen, Germany.
| | - Emanuele Zucca
- Oncology Institute of Southern Switzerland (IOSI), Ospedale San Giovanni, 6500 Bellinzona, Switzerland.
| | - Maria Gomes da Silva
- Instituto Português de Oncologia de Lisboa de Francisco Gentil, R. Prof. Lima Basto, 1099-023 Lisbon, Portugal.
| | - Ruth Pettengell
- St George's University of London, Cranmer Terrace, London SW17 0RE, UK.
| | - Eckhart Weidmann
- Klinik für Onkologie und Hämatologie am Krankenhaus Nordwest GmbH, Steinbacher Hohl 2-26, D-60488 Frankfurt, Germany.
| | - Francesco d'Amore
- Department Hematology, Aarhus University Hospital, Tage Hansens Gade 2, DK-8000 Aarhus C, Denmark.
| | - Hervé Tilly
- Department of Hematology, Centre Henri-Becquerel, UMR918, Université de Rouen, Rue d'Amiens, 76038 Rouen Cedex 1, France.
| | - Pier Luigi Zinzani
- Institute of Hematology "Seràgnoli", University of Bologna, Via Massarenti 9, 40138 Bologna, Italy.
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138
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Gao Y, Osman S, Koide K. Total Synthesis and Biological Studies of TMC-205 and Analogues as Anticancer Agents and Activators of SV40 Promoter. ACS Med Chem Lett 2014; 5:863-7. [PMID: 25147604 DOI: 10.1021/ml500025p] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 06/19/2014] [Indexed: 11/30/2022] Open
Abstract
TMC-205 is a natural fungal metabolite with antiproliferative activity against cancer cell lines. The light- and air-sensitivity prevented in-depth exploitation of this novel indole derivative. Herein, we report the first synthesis of TMC-205. On the basis of its reactivity with reactive oxygen species, we developed air-stable analogues of TMC-205. These analogues are 2-8-fold more cytotoxic than TMC-205 against HCT-116 colon cancer cell line. Importantly, at noncytotoxic dose levels, these analogues activated the transcription of luciferase reporter gene driven by simian virus 40 promoter (SV40). Further, these small molecules also inhibit firefly luciferase, presumably by direct interaction.
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Affiliation(s)
- Yang Gao
- Department of Chemistry, University of Pittsburgh, 219 Parkman
Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Sami Osman
- Department of Chemistry, University of Pittsburgh, 219 Parkman
Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Kazunori Koide
- Department of Chemistry, University of Pittsburgh, 219 Parkman
Avenue, Pittsburgh, Pennsylvania 15260, United States
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139
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Phenotypic screening in cancer drug discovery - past, present and future. Nat Rev Drug Discov 2014; 13:588-602. [PMID: 25033736 DOI: 10.1038/nrd4366] [Citation(s) in RCA: 318] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
There has been a resurgence of interest in the use of phenotypic screens in drug discovery as an alternative to target-focused approaches. Given that oncology is currently the most active therapeutic area, and also one in which target-focused approaches have been particularly prominent in the past two decades, we investigated the contribution of phenotypic assays to oncology drug discovery by analysing the origins of all new small-molecule cancer drugs approved by the US Food and Drug Administration (FDA) over the past 15 years and those currently in clinical development. Although the majority of these drugs originated from target-based discovery, we identified a significant number whose discovery depended on phenotypic screening approaches. We postulate that the contribution of phenotypic screening to cancer drug discovery has been hampered by a reliance on 'classical' nonspecific drug effects such as cytotoxicity and mitotic arrest, exacerbated by a paucity of mechanistically defined cellular models for therapeutically translatable cancer phenotypes. However, technical and biological advances that enable such mechanistically informed phenotypic models have the potential to empower phenotypic drug discovery in oncology.
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140
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Identification and characterization of the spiruchostatin biosynthetic gene cluster enable yield improvement by overexpressing a transcriptional activator. J Ind Microbiol Biotechnol 2014; 41:1457-65. [PMID: 24973954 DOI: 10.1007/s10295-014-1474-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 06/10/2014] [Indexed: 01/05/2023]
Abstract
Spiruchostatins A and B are members of the FK228-family of natural products with potent histone deacetylase inhibitory activities and antineoplastic activities. However, their production in the wild-type strain of Pseudomonas sp. Q71576 is low. To improve the yield, the spiruchostatin biosynthetic gene cluster (spi) was first identified by rapid genome sequencing and characterized by genetic mutations. This spi gene cluster encodes a hybrid biosynthetic pathway similar to that encoded by the FK228 biosynthetic gene cluster (dep) in Chromobacterium violaceum No. 968. Each gene cluster contains a pathway regulatory gene (spiR vs. depR), but these two genes encode transcriptional activators of different classes. Overexpression of native spiR or heterologous depR in the wild-type strain of Pseudomonas sp. Q71576 resulted in 268 or 1,285 % increase of the combined titer of spiruchostatins A and B, respectively. RT-PCR analysis indicates that overexpression of heterologous depR upregulates the expression of native spiR.
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141
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Marsh DJ, Shah JS, Cole AJ. Histones and their modifications in ovarian cancer - drivers of disease and therapeutic targets. Front Oncol 2014; 4:144. [PMID: 24971229 PMCID: PMC4053763 DOI: 10.3389/fonc.2014.00144] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Accepted: 05/27/2014] [Indexed: 01/08/2023] Open
Abstract
Epithelial ovarian cancer has the highest mortality of the gynecological malignancies. High grade serous epithelial ovarian cancer (SEOC) is the most common subtype, with the majority of women presenting with advanced disease where 5-year survival is around 25%. Platinum-based chemotherapy in combination with paclitaxel remains the most effective treatment despite platinum therapies being introduced almost 40 years ago. Advances in molecular medicine are underpinning new strategies for the treatment of cancer. Major advances have been made by international initiatives to sequence cancer genomes. For SEOC, with the exception of TP53 that is mutated in virtually 100% of these tumors, there is no other gene mutated at high frequency. There is extensive copy number variation, as well as changes in methylation patterns that will influence gene expression. To date, the role of histones and their post-translational modifications in ovarian cancer is a relatively understudied field. Post-translational histone modifications play major roles in gene expression as they direct the configuration of chromatin and so access by transcription factors. Histone modifications include methylation, acetylation, and monoubiquitination, with involvement of enzymes including histone methyltransferases, histone acetyltransferases/deacetylases, and ubiquitin ligases/deubiquitinases, respectively. Complexes such as the Polycomb repressive complex also play roles in the control of histone modifications and more recently roles for long non-coding RNA and microRNAs are emerging. Epigenomic-based therapies targeting histone modifications are being developed and offer new approaches for the treatment of ovarian cancer. Here, we discuss histone modifications and their aberrant regulation in malignancy and specifically in ovarian cancer. We review current and upcoming histone-based therapies that have the potential to inform and improve treatment strategies for women with ovarian cancer.
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Affiliation(s)
- Deborah J Marsh
- Hormones and Cancer Group, Kolling Institute of Medical Research, Royal North Shore Hospital, The University of Sydney , Sydney, NSW , Australia
| | - Jaynish S Shah
- Hormones and Cancer Group, Kolling Institute of Medical Research, Royal North Shore Hospital, The University of Sydney , Sydney, NSW , Australia
| | - Alexander J Cole
- Hormones and Cancer Group, Kolling Institute of Medical Research, Royal North Shore Hospital, The University of Sydney , Sydney, NSW , Australia
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142
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Kosoff D, Krueger T, Lang JM. Targeting epigenetic mechanisms for clinical translation: enhancing the efficacy of tumor immunotherapies. Immunotherapy 2014; 5:1243-54. [PMID: 24188678 DOI: 10.2217/imt.13.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The ability to evade host immune surveillance is critical for the survival of tumor cells and is correlated with poor clinical outcomes. Many tumor types have been found to downregulate expression of genes involved in antigen production, processing and presentation to evade immune detection. Recent findings suggest that the mechanisms underlying these immune evasion phenomena extend beyond alterations in DNA sequence to include epigenetic modifications of DNA and associated proteins, including hypermethylation of DNA and altered histone acetylation patterns. This review will summarize alterations in antigen presentation machinery identified in malignant cells, epigenetic mechanisms that can be employed in the downregulation of genes relevant for antigen presentation and translational strategies to target these processes to enhance the efficacy of antitumor immunotherapies.
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Affiliation(s)
- David Kosoff
- Department of Medicine, University of Wisconsin, Madison, WI, USA
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143
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Wang XJ, Zhang XR, Zhang L, Li QH, Wang L, Shi LH, Fang CY. A new cell counting method to evaluate anti-tumor compound activity. Asian Pac J Cancer Prev 2014; 15:3397-401. [PMID: 24870728 DOI: 10.7314/apjcp.2014.15.8.3397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Determining cell quantity is a common problem in cytology research and anti-tumor drug development. A simple and low-cost method was developed to determine monolayer and adherent-growth cell quantities. The cell nucleus is located in the cytoplasm, and is independent. Thus, the nucleus cannot make contact even if the cell density is heavy. This phenomenon is the foundation of accurate cell-nucleus recognition. The cell nucleus is easily recognizable in images after fluorescent staining because it is independent. A one-to-one relationship exists between the nucleus and the cell; therefore, this method can be used to determine the quantity of proliferating cells. Results indicated that the activity of the histone deacetylase inhibitor Z1 was effective after this method was used. The nude-mouse xenograft model also revealed the potent anti-tumor activity of Z1. This research presents a new anti-tumor-drug evaluation method.
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Affiliation(s)
- Xue-Jian Wang
- School of Pharmacy and Biology Science, Weifang Medical University, Weifang, China E-mail :
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144
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Zhang L, Han Y, Jiang Q, Wang C, Chen X, Li X, Xu F, Jiang Y, Wang Q, Xu W. Trend of histone deacetylase inhibitors in cancer therapy: isoform selectivity or multitargeted strategy. Med Res Rev 2014; 35:63-84. [PMID: 24782318 DOI: 10.1002/med.21320] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Pharmacological inhibition of histone deacetylases (HDACs) has been successfully applied in the treatment of a wide range of disorders, including Parkinson's disease, infection, cardiac diseases, inflammation, and especially cancer. HDAC inhibitors (HDACIs) have been proved to be effective antitumor agents by various stages of investigation. At present, there are two opposite focuses of HDACI design in the cancer therapy, highly selective inhibitor strategy and dual- or multitargeted inhibitors. The former method, which is supposed to elucidate the function of individual HDAC and provide candidate inhibitors with fewer side effects, has been widely accepted by the inhibitor developer. The latter approach, though less practiced, has promising potential for the antitumor therapy based on HDACIs. Effective HDACIs, some of which are in clinic anticancer research, have been developed by both methods. In order to gain insight into HDACI design, the strategies and achievements of the two diverse methods are reviewed.
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Affiliation(s)
- Lei Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, Shandong, China
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145
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Wei DG, Chiang V, Fyne E, Balakrishnan M, Barnes T, Graupe M, Hesselgesser J, Irrinki A, Murry JP, Stepan G, Stray KM, Tsai A, Yu H, Spindler J, Kearney M, Spina CA, McMahon D, Lalezari J, Sloan D, Mellors J, Geleziunas R, Cihlar T. Histone deacetylase inhibitor romidepsin induces HIV expression in CD4 T cells from patients on suppressive antiretroviral therapy at concentrations achieved by clinical dosing. PLoS Pathog 2014; 10:e1004071. [PMID: 24722454 PMCID: PMC3983056 DOI: 10.1371/journal.ppat.1004071] [Citation(s) in RCA: 226] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 02/20/2014] [Indexed: 02/06/2023] Open
Abstract
Persistent latent reservoir of replication-competent proviruses in memory CD4 T cells is a major obstacle to curing HIV infection. Pharmacological activation of HIV expression in latently infected cells is being explored as one of the strategies to deplete the latent HIV reservoir. In this study, we characterized the ability of romidepsin (RMD), a histone deacetylase inhibitor approved for the treatment of T-cell lymphomas, to activate the expression of latent HIV. In an in vitro T-cell model of HIV latency, RMD was the most potent inducer of HIV (EC50 = 4.5 nM) compared with vorinostat (VOR; EC50 = 3,950 nM) and other histone deacetylase (HDAC) inhibitors in clinical development including panobinostat (PNB; EC50 = 10 nM). The HIV induction potencies of RMD, VOR, and PNB paralleled their inhibitory activities against multiple human HDAC isoenzymes. In both resting and memory CD4 T cells isolated from HIV-infected patients on suppressive combination antiretroviral therapy (cART), a 4-hour exposure to 40 nM RMD induced a mean 6-fold increase in intracellular HIV RNA levels, whereas a 24-hour treatment with 1 µM VOR resulted in 2- to 3-fold increases. RMD-induced intracellular HIV RNA expression persisted for 48 hours and correlated with sustained inhibition of cell-associated HDAC activity. By comparison, the induction of HIV RNA by VOR and PNB was transient and diminished after 24 hours. RMD also increased levels of extracellular HIV RNA and virions from both memory and resting CD4 T-cell cultures. The activation of HIV expression was observed at RMD concentrations below the drug plasma levels achieved by doses used in patients treated for T-cell lymphomas. In conclusion, RMD induces HIV expression ex vivo at concentrations that can be achieved clinically, indicating that the drug may reactivate latent HIV in patients on suppressive cART. Combination antiretroviral therapy has greatly improved the clinical outcome of HIV infection treatment. However, latent viral reservoirs established primarily in memory CD4 T cells persist even after long periods of suppressive antiretroviral therapy, which hinders the ability to achieve a prolonged drug-free remission or a cure of the HIV infection. Activation of HIV expression from latent reservoirs is a part of proposed strategies that may potentially lead to virus elimination and ultimately cure of the infection. In this study, we show that romidepsin, a histone deacetylase inhibitor approved for the treatment of T-cell lymphomas, is a potent activator of HIV expression in an in vitro model of viral latency as well as ex vivo in resting and memory CD4 T cells isolated from HIV-infected patients with suppressed viremia. Importantly, the ex vivo activation of latent HIV occurred at romidepsin concentrations lower than those achieved in drug-treated lymphoma patients. In addition, romidepsin exhibited a more potent effect than other drugs in the same class that have already been shown to activate HIV expression in vivo. Together, these results support the clinical assessment of romidepsin in HIV-infected patients on suppressive antiretroviral therapy.
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Affiliation(s)
| | - Vicki Chiang
- Gilead Sciences, Foster City, California, United States of America
| | - Elizabeth Fyne
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | | | - Tiffany Barnes
- Gilead Sciences, Foster City, California, United States of America
| | - Michael Graupe
- Gilead Sciences, Foster City, California, United States of America
| | | | - Alivelu Irrinki
- Gilead Sciences, Foster City, California, United States of America
| | - Jeffrey P. Murry
- Gilead Sciences, Foster City, California, United States of America
| | - George Stepan
- Gilead Sciences, Foster City, California, United States of America
| | - Kirsten M. Stray
- Gilead Sciences, Foster City, California, United States of America
| | - Angela Tsai
- Gilead Sciences, Foster City, California, United States of America
| | - Helen Yu
- Gilead Sciences, Foster City, California, United States of America
| | - Jonathan Spindler
- HIV Drug Resistance Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, United States of America
| | - Mary Kearney
- HIV Drug Resistance Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, United States of America
| | - Celsa A. Spina
- Department of Pathology, School of Medicine, University of California San Diego, La Jolla, California, United States of America
| | - Deborah McMahon
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Jacob Lalezari
- Quest Clinical Research, San Francisco, California, United States of America
| | - Derek Sloan
- Gilead Sciences, Foster City, California, United States of America
| | - John Mellors
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Romas Geleziunas
- Gilead Sciences, Foster City, California, United States of America
| | - Tomas Cihlar
- Gilead Sciences, Foster City, California, United States of America
- * E-mail:
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146
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Stolfa DA, Marek M, Lancelot J, Hauser AT, Walter A, Leproult E, Melesina J, Rumpf T, Wurtz JM, Cavarelli J, Sippl W, Pierce RJ, Romier C, Jung M. Molecular basis for the antiparasitic activity of a mercaptoacetamide derivative that inhibits histone deacetylase 8 (HDAC8) from the human pathogen schistosoma mansoni. J Mol Biol 2014; 426:3442-53. [PMID: 24657767 DOI: 10.1016/j.jmb.2014.03.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/13/2014] [Accepted: 03/13/2014] [Indexed: 10/25/2022]
Abstract
Schistosomiasis, caused by the parasitic flatworm Schistosoma mansoni and related species, is a tropical disease that affects over 200 million people worldwide. A new approach for targeting eukaryotic parasites is to tackle their dynamic epigenetic machinery that is necessary for the extensive phenotypic changes during the life cycle of the parasite. Recently, we identified S. mansoni histone deacetylase 8 (smHDAC8) as a potential target for antiparasitic therapy. Here, we present results on the investigations of a focused set of HDAC (histone deacetylase) inhibitors on smHDAC8. Besides several active hydroxamates, we identified a thiol-based inhibitor that inhibited smHDAC8 activity in the micromolar range with unexpected selectivity over the human isotype, which has not been observed so far. The crystal structure of smHDAC8 complexed with the thiol derivative revealed that the inhibitor is accommodated in the catalytic pocket, where it interacts with both the catalytic zinc ion and the essential catalytic tyrosine (Y341) residue via its mercaptoacetamide warhead. To our knowledge, this is the first complex crystal structure of any HDAC inhibited by a mercaptoacetamide inhibitor, and therefore, this finding offers a rationale for further improvement. Finally, an ester prodrug of the thiol HDAC inhibitor exhibited antiparasitic activity on cultured schistosomes in a dose-dependent manner.
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Affiliation(s)
- Diana A Stolfa
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Martin Marek
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France
| | - Julien Lancelot
- Center for Infection and Immunity of Lille, INSERM U1019-CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, 1 rue Professeur Calmette, F-59019 Lille Cedex, France
| | - Alexander-Thomas Hauser
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Alexandra Walter
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany; German Cancer Consortium (DKTK), Freiburg, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Emeline Leproult
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France
| | - Jelena Melesina
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle/Saale, Germany
| | - Tobias Rumpf
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Jean-Marie Wurtz
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France
| | - Jean Cavarelli
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle/Saale, Germany
| | - Raymond J Pierce
- Center for Infection and Immunity of Lille, INSERM U1019-CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, 1 rue Professeur Calmette, F-59019 Lille Cedex, France
| | - Christophe Romier
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France.
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany.
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147
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Butler MS, Robertson AAB, Cooper MA. Natural product and natural product derived drugs in clinical trials. Nat Prod Rep 2014; 31:1612-61. [DOI: 10.1039/c4np00064a] [Citation(s) in RCA: 383] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The 25 Natural Product (NP)-derived drugs launched since 2008 and the 100 NP-derived compounds and 33 Antibody Drug Conjugates (ADCs) in clinical trials or in registration at the end of 2013 are reviewed.
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Affiliation(s)
- Mark S. Butler
- Division of Chemistry and Structural Biology
- Institute for Molecular Bioscience
- The University of Queensland
- Brisbane, Australia
| | - Avril A. B. Robertson
- Division of Chemistry and Structural Biology
- Institute for Molecular Bioscience
- The University of Queensland
- Brisbane, Australia
| | - Matthew A. Cooper
- Division of Chemistry and Structural Biology
- Institute for Molecular Bioscience
- The University of Queensland
- Brisbane, Australia
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148
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Abstract
PURPOSE The pharmacology, pharmacokinetic and pharmacodynamic properties, and clinical data on a novel therapy for the treatment of cutaneous or peripheral T-cell lymphoma (CTCL, PTCL) are summarized. SUMMARY Romidepsin is the only bicyclic histone deacetylase (HDAC) inhibitor to undergo clinical development. A potent and specific inhibitor of class 1 HDACs, romidepsin has linear pharmacokinetics and is primarily metabolized by cytochrome P-450 isoenzyme 3A4. In two Phase II studies involving patients with relapsed or refractory CTCL, romidepsin therapy produced overall response rates of 34-35% (including patients with advanced and heavily pretreated disease), with a complete response seen in about 6% of patients in both studies; romidepsin responses were seen across all evaluated disease sites (skin, blood, lymph, viscera). In two Phase II studies in patients with relapsed or refractory PTCL, romidepsin produced overall response rates of 25-38%, and 15-18% of patients experienced a complete response; therapeutic responses were seen across major PTCL subtypes regardless of the number or types of previous therapies or refractoriness to the last prior therapy. In clinical trials to date, romidepsin therapy was generally well tolerated, with nausea, fatigue, and vomiting reported as the most common nonhematologic adverse events. However, thrombocytopenia and neutropenia are relatively common events, especially in patients with PTCL. CONCLUSION Romidepsin, a class 1-specific HDAC inhibitor, induces durable responses, with a manageable toxicity profile, in patients with relapsed or refractory CTCL or PTCL who have few therapeutic options.
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Affiliation(s)
- Angie L McGraw
- Middle Tennessee Medical Center, 1700 Medical Center Parkway, Murfreesboro, TN 37129, USA.
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149
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Zhang L, Zhang Y, Chou CJ, Inks ES, Wang X, Li X, Hou J, Xu W. Histone deacetylase inhibitors with enhanced enzymatic inhibition effects and potent in vitro and in vivo antitumor activities. ChemMedChem 2013; 9:638-48. [PMID: 24227760 DOI: 10.1002/cmdc.201300297] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 10/13/2013] [Indexed: 11/08/2022]
Abstract
In the present work, a series of small molecules were designed and synthesized based on structural optimization. A significant improvement in the enzyme inhibitory activity of these compounds was discovered. Moreover, the tested compounds have moderate preference for class I HDACs over HDAC6, as demonstrated by enzyme selectivity assays. In vitro antiproliferation assay results show that representative compounds can selectively inhibit the growth of non-solid lymphoma and leukemic cells such as U937, K562, and HL60. In the in vivo antitumor assay, (S)-4-(2-(5-(dimethylamino)naphthalene-1-sulfonamido)-2-phenylacetamido)-N-hydroxybenzamide (D17) showed better performance than SAHA in blocking U937 tumor growth. Western blot analysis revealed that representative molecules can block the function of both class I HDACs and HDAC6. More importantly, our western blot results reveal that the levels of some oncogenic proteins (p-Akt in the PI3K/AKT/mTOR signal pathway, c-Raf and p-Erk in the MAPK signal pathway) were dramatically down-regulated by our compounds in the U937 cell line rather than MDA-MB-231 cells. This distinction in cellular mechanism might be an important reason why the U937 cell line was found to more sensitive to our HDAC inhibitors than the MDA-MB-231 cell line.
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Affiliation(s)
- Lei Zhang
- Department of Pharmacy, School of Medicine, Qingdao University, 308 Dengzhou Road, Qingdao, Shandong 266071 (China).
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150
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Liu X, Cheng YQ. Genome-guided discovery of diverse natural products from Burkholderia sp. J Ind Microbiol Biotechnol 2013; 41:275-84. [PMID: 24212473 DOI: 10.1007/s10295-013-1376-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 10/24/2013] [Indexed: 01/09/2023]
Abstract
Burkholderia species have emerged as a new source of diverse natural products. This mini-review covers all of the natural products discovered in recent years from Burkholderia sp. by genome-guided approaches--these refer to the use of bacterial genome sequence as an entry point for in silico structural prediction, wet lab experimental design, and execution. While reliable structural prediction based on cryptic biosynthetic gene cluster sequence was not always possible due to noncanonical domains and/or module organization of a deduced biosynthetic pathway, a molecular genetic method was often employed to detect or alter the expression level of the gene cluster to achieve an observable phenotype, which facilitated downstream natural product purification and identification. Those examples of natural product discovery from Burkholderia sp. provide practical guidance for future exploration of Gram-negative bacteria as a new source of natural products.
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Affiliation(s)
- Xiangyang Liu
- UNT System College of Pharmacy, University of North Texas Health Science Center, 3500 Camp Bowie Boulevard, Fort Worth, TX, 76107, USA
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