1
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Jadhao NL, Musale HB, Gajbhiye JM, Humne VT. Copper-mediated [3 + 2] oxidative cyclization of oxime acetate and its utility in the formal synthesis of fentiazac. Org Biomol Chem 2024; 22:521-528. [PMID: 38087933 DOI: 10.1039/d3ob01882b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
A new protocol for the direct synthesis of 2-aminothiazole has been developed from oxime acetate and readily available sodium thiocyanate using a copper catalyst. The present transformation has good functional group tolerance. Various thiazoles were smoothly synthesized in good to excellent yields. The applicability of the present method has been extended to the formal synthesis of the non-steroidal and anti-inflammatory drug, fentiazac via the Sandmeyer reaction and Suzuki coupling.
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Affiliation(s)
- Nitin L Jadhao
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune, 411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Harish B Musale
- Department of Chemistry, Shri R. R. Lahoti Science College, Morshi, 444905, India.
| | - Jayant M Gajbhiye
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune, 411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vivek T Humne
- Department of Chemistry, Shri R. R. Lahoti Science College, Morshi, 444905, India.
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2
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Ghosh A, Himaja A, Biswas S, Kulkarni O, Ghosh B. Advances in the Delivery and Development of Epigenetic Therapeutics for the Treatment of Cancer. Mol Pharm 2023; 20:5981-6009. [PMID: 37899551 DOI: 10.1021/acs.molpharmaceut.3c00610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Gene expression at the transcriptional level is altered by epigenetic modifications such as DNA methylation, histone methylation, and acetylation, which can upregulate, downregulate, or entirely silence genes. Pathological dysregulation of epigenetic processes can result in the development of cancer, neurological problems, metabolic disorders, and cardiovascular diseases. It is of promising therapeutic interest to find medications that target these epigenetic alterations. Despite the enormous amount of work that has been done in this area, very few molecules have been approved for clinical purposes. This article provides a comprehensive review of recent advances in epigenetic therapeutics for cancer, with a specific focus on emerging delivery and development strategies. Various delivery systems, including pro-drugs, conjugated molecules, nanoparticles (NPs), and liposomes, as well as remedial strategies such as combination therapies, and epigenetic editing, are being investigated to improve the efficacy and specificity of epigenetic drugs (epi-drugs). Furthermore, the challenges associated with available epi-drugs and the limitations of their translation into clinics have been discussed. Target selection, isoform selectivity, physiochemical properties of synthesized molecules, drug screening, and scalability of epi-drugs from preclinical to clinical fields are the major shortcomings that are addressed. This Review discusses novel strategies for the identification of new biomarkers, exploration of the medicinal chemistry of epigenetic modifiers, optimization of the dosage regimen, and design of proper clinical trials that will lead to better utilization of epigenetic modifiers over conventional therapies. The integration of these approaches holds great potential for improving the efficacy and precision of epigenetic treatments, ultimately benefiting cancer patients.
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Affiliation(s)
- Aparajita Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science- Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
- Pharmacology Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
| | - Ambati Himaja
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science- Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
| | - Swati Biswas
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
| | - Onkar Kulkarni
- Pharmacology Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
| | - Balaram Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science- Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
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3
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Walczak JM, Iwaszkiewicz-Grześ D, Ziomkowska M, Śliwka-Kaszyńska M, Daśko M, Trzonkowski P, Cholewiński G. Novel amides of mycophenolic acid and some heterocyclic derivatives as immunosuppressive agents. J Enzyme Inhib Med Chem 2022; 37:2725-2741. [PMID: 36189734 PMCID: PMC9542285 DOI: 10.1080/14756366.2022.2127701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The group of 18 new amide derivatives of mycophenolic acid (MPA) and selected heterocyclic amines was synthesised as potential immunosuppressive agents functioning as inosine-5′-monophosphate dehydrogenase (IMPDH) uncompetitive inhibitors. The synthesis of 14 of them employed uronium-type activating system (TBTU/HOBt/DIPEA) while 4 of them concerned phosphonic acid anhydride method (T3P/Py) facilitating amides to be obtained in moderate to excellent yields without the need of phenolic group protection. Most of optimised protocols did not require complicated reaction work-ups, including chromatographic, solvent-consuming methods. The biological activity assay was performed on the T-Jurkat cell line and peripheral mononuclear blood cells (PBMCs) which are both dedicated for antiproliferative activity determination. Each of designed derivatives was characterised by reduced cytotoxicity and benzoxazole analogue (A2) revealed the most promising activity. Subsequently, an observed structure-activity relationship was discussed.
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Affiliation(s)
| | | | | | | | - Mateusz Daśko
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Piotr Trzonkowski
- Department of Medical Immunology, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Grzegorz Cholewiński
- Department of Organic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
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4
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Daśko M, de Pascual-Teresa B, Ortín I, Ramos A. HDAC Inhibitors: Innovative Strategies for Their Design and Applications. Molecules 2022; 27:molecules27030715. [PMID: 35163980 PMCID: PMC8837987 DOI: 10.3390/molecules27030715] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 12/16/2022] Open
Abstract
Histone deacetylases (HDACs) are a large family of epigenetic metalloenzymes that are involved in gene transcription and regulation, cell proliferation, differentiation, migration, and death, as well as angiogenesis. Particularly, disorders of the HDACs expression are linked to the development of many types of cancer and neurodegenerative diseases, making them interesting molecular targets for the design of new efficient drugs and imaging agents that facilitate an early diagnosis of these diseases. Thus, their selective inhibition or degradation are the basis for new therapies. This is supported by the fact that many HDAC inhibitors (HDACis) are currently under clinical research for cancer therapy, and the Food and Drug Administration (FDA) has already approved some of them. In this review, we will focus on the recent advances and latest discoveries of innovative strategies in the development and applications of compounds that demonstrate inhibitory or degradation activity against HDACs, such as PROteolysis-TArgeting Chimeras (PROTACs), tumor-targeted HDACis (e.g., folate conjugates and nanoparticles), and imaging probes (positron emission tomography (PET) and fluorescent ligands).
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Affiliation(s)
- Mateusz Daśko
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland;
- Departamento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28925 Alcorcón, Spain;
| | - Beatriz de Pascual-Teresa
- Departamento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28925 Alcorcón, Spain;
| | - Irene Ortín
- Departamento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28925 Alcorcón, Spain;
- Correspondence: (I.O.); (A.R.)
| | - Ana Ramos
- Departamento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28925 Alcorcón, Spain;
- Correspondence: (I.O.); (A.R.)
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5
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Rana A, Bhatnagar S. Advancements in folate receptor targeting for anti-cancer therapy: A small molecule-drug conjugate approach. Bioorg Chem 2021; 112:104946. [PMID: 33989916 DOI: 10.1016/j.bioorg.2021.104946] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/17/2021] [Accepted: 04/22/2021] [Indexed: 10/21/2022]
Abstract
Targeted delivery combined with controlled release of drugs has a crucial role in future of personalized medicine. The majority of cancer drugs are intended to interfere with one or more cellular events. Anticancer agents can also be toxic to healthy cells, as healthy cells may also need to proliferate and avoid apoptosis. The focus of this review covers the principles, advantages, drawbacks and summarize criteria that must be met for design of small molecule-drug conjugates (SMDCs) to achieve the desired therapeutic potency with minimal toxicity. SMDCs are composed of a targeting ligand, a releasable bridge, a spacer, and a therapeutic payload. We summarize the criteria for the effective design that influences the selection of tumor specific receptor and optimum elements in the design of SMDCs. We also discuss the criteria for selecting the optimal therapeutic drug payload, spacer and linker. The linker chemistries and cleavage strategies are also discussed. Finally, we review the folate receptor targeting SMDCs that are in preclinical development and in clinical trials.
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Affiliation(s)
- Abhilash Rana
- Amity Institute of Biotechnology, Amity University, Sector125, Noida, Uttar Pradesh, India.
| | - Seema Bhatnagar
- Amity Institute of Biotechnology, Amity University, Sector125, Noida, Uttar Pradesh, India.
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6
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Mei R, Xiong F, Yang C, Zhao J. Salicylic Acid‐Promoted Three‐Component Annulation of Benzimidazoles, Aryl Nitroalkenes and Elemental Sulfur. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ruhuai Mei
- Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Feng Xiong
- Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Chenrui Yang
- Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Jinwu Zhao
- School of Pharmacy Guangdong Medical University Dongguan 523808 People's Republic of China
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7
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Patel TK, Adhikari N, Amin SA, Biswas S, Jha T, Ghosh B. Small molecule drug conjugates (SMDCs): an emerging strategy for anticancer drug design and discovery. NEW J CHEM 2021. [DOI: 10.1039/d0nj04134c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Mechanisms of how SMDCs work. Small molecule drugs are conjugated with the targeted ligand using pH sensitive linkers which allow the drug molecule to get released at lower lysosomal pH. It helps to accumulate the chemotherapeutic agents to be localized in the tumor environment upon cleaving of the pH-labile bonds.
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Affiliation(s)
- Tarun Kumar Patel
- Epigenetic Research Laboratory, Department of Pharmacy
- BITS-Pilani
- Hyderabad
- India
| | - Nilanjan Adhikari
- Natural Science Laboratory
- Division of Medicinal and Pharmaceutical Chemistry
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata 700032
| | - Sk. Abdul Amin
- Natural Science Laboratory
- Division of Medicinal and Pharmaceutical Chemistry
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata 700032
| | - Swati Biswas
- Epigenetic Research Laboratory, Department of Pharmacy
- BITS-Pilani
- Hyderabad
- India
| | - Tarun Jha
- Natural Science Laboratory
- Division of Medicinal and Pharmaceutical Chemistry
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata 700032
| | - Balaram Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy
- BITS-Pilani
- Hyderabad
- India
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8
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Histone deacetylase inhibitor based prodrugs. Eur J Med Chem 2020; 203:112628. [PMID: 32679451 DOI: 10.1016/j.ejmech.2020.112628] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 12/12/2022]
Abstract
Histone deacetylases (HDACs) are a family of enzymes which play important roles in the development and progression of cancers. Inhibition of HDACs has been widely studied as a therapeutic strategy in the discovery of anticancer drugs. HDAC inhibitors (HDACIs) have exhibited potency against a variety of cancer types, and four of them have been approved by the US FDA for cancer treatment. However, the clinical benefits of current HDACIs is limited by the insufficient physicochemical property, selectivity and potency. To improve the clinical potential of HDACIs, the prodrug strategy had been utilized to improve the in vivo pharmacokinetic and pharmacodynamic performances of HDACIs. Enhancements in the stability, water solubility, lipophilicity, oral bioavailability and tumor cell selectivity were reported by various studies. Herein, the development of different kinds of HDACI-based prodrug is summarized for the further structural modification of HDACIs with high potential to be drug candidates.
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9
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Zhang Q, Wu J, Pan Z, Zhang W, Zhou W. A one-pot synthesis of 2-aminothiazoles via the coupling of ketones and thiourea using I2/dimethyl sulfoxide as a catalytic oxidative system. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820930961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of 2-aminothiazoles is prepared in moderate-to-good yields by the direct coupling of ketones and thiourea using I2/dimethyl sulfoxide as a catalytic oxidative system. This method avoids the preparation of lachrymatory and toxic α-haloketones and the use of an acid-binding agent, thus providing a more convenient approach to 2-aminothiazoles compared to the Hantzsch reaction.
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Affiliation(s)
- Qian Zhang
- College of Pharmaceutical Science, Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Jiefei Wu
- College of Pharmaceutical Science, Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Zexi Pan
- College of Pharmaceutical Science, Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Wen Zhang
- College of Pharmaceutical Science, Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Wei Zhou
- College of Pharmaceutical Science, Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, P.R. China
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10
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Zhao J, Luo Z, Xu J. Synthesis of 1,4‐Benzothiazines via KI/DMSO/O
2
‐Mediated Three‐Component Oxidative Cyclization/Coupling. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000201] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jinwu Zhao
- School of PharmacyGuangdong Medical University Dongguan 523808 People's Republic of China
| | - Zhigao Luo
- School of PharmacyGuangdong Medical University Dongguan 523808 People's Republic of China
| | - Jingxiu Xu
- School of PharmacyGuangdong Medical University Dongguan 523808 People's Republic of China
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11
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Itoh Y. Drug Discovery Researches on Modulators of Lysine-Modifying Enzymes Based on Strategic Chemistry Approaches. Chem Pharm Bull (Tokyo) 2020; 68:34-45. [DOI: 10.1248/cpb.c19-00741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yukihiro Itoh
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine
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12
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Zhang D, Gao D, Cai J, Wu X, Qin H, Qiao K, Liu C, Fang Z, Guo K. The ruthenium-catalyzed meta-selective C-H nitration of various azole ring-substituted arenes. Org Biomol Chem 2019; 17:9065-9069. [PMID: 31584058 DOI: 10.1039/c9ob01930h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The efficient ruthenium-catalyzed meta-selective CAr-H nitration of azole ring substituted arenes has been developed. In this work, Ru3(CO)12 was used as the catalyst, AgNO2 as the nitro source, HPcy3+·BF4- as the ligand, pivalic acid as the additive, and DCE as the solvent, and a wide spectrum of arenes bearing thiazole, pyrazolyl or removable oxazoline directing groups were tolerated in this meta-selective CAr-H nitration, affording the nitrated products in moderate to good yields. Moreover, this study reveals a gentler and environmentally friendly way to access meta-nitration arenes compared to the traditional process.
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Affiliation(s)
- Dong Zhang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China.
| | - Di Gao
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China.
| | - Jinlin Cai
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China.
| | - Xiaoyu Wu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China.
| | - Hong Qin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China.
| | - Kai Qiao
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China.
| | - Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China.
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China.
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China. and State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, China
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13
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Zhuang C, Guan X, Ma H, Cong H, Zhang W, Miao Z. Small molecule-drug conjugates: A novel strategy for cancer-targeted treatment. Eur J Med Chem 2019; 163:883-895. [DOI: 10.1016/j.ejmech.2018.12.035] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 12/14/2018] [Accepted: 12/14/2018] [Indexed: 10/27/2022]
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14
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Figliola C, Marchal E, Groves BR, Thompson A. A step-wise synthetic approach is necessary to access γ-conjugates of folate: folate-conjugated prodigiosenes. RSC Adv 2019; 9:14078-14092. [PMID: 35519339 PMCID: PMC9064012 DOI: 10.1039/c9ra01435g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 04/23/2019] [Indexed: 11/21/2022] Open
Abstract
Despite the vast literature that describes reacting folic acid with a pharmacophore, this route is ineffective in providing the correct regioisomer of the resulting conjugate. We herein present a step-wise route to the preparation of nine folate conjugates of the tripyrrolic prodigiosene skeleton. The strict requirement for step-wise construction of the folate core is demonstrated, so as to achieve conjugation at only the desired γ-carboxylic acid and thus maintain the α-carboxylic site for folate receptor (FRα) recognition. Linkages via ethylenediamine, polyethylene glycol and glutathione are demonstrated. Despite the vast literature that describes reacting folic acid with a pharmacophore, this route is ineffective in providing the correct regioisomer of the resulting conjugate.![]()
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15
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Li S, Yu B, Wang J, Zheng Y, Zhang H, Walker MJ, Yuan Z, Zhu H, Zhang J, Wang PG, Wang B. Biomarker-Based Metabolic Labeling for Redirected and Enhanced Immune Response. ACS Chem Biol 2018; 13:1686-1694. [PMID: 29792670 DOI: 10.1021/acschembio.8b00350] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Installation of an antibody-recruiting moiety on the surface of disease-relevant cells can lead to the selective destruction of targets by the immune system. Such an approach can be an alternative strategy to traditional chemotherapeutics in cancer therapy and possibly other diseases. Herein we describe the development of a new strategy to selectively label targets with an antibody-recruiting moiety through its covalent and stable installation, complementing existing methods of employing reversible binding. This is achieved through selective delivery of 1,3,4- O-acetyl- N-azidoacetylmannosamine (Ac3ManNAz) to folate receptor-overexpressing cells using an Ac3ManNAz-folate conjugate via a cleavable linker. As such, Ac3ManNAz is converted to cell surface glycan bearing an azido group, which serves as an anchor to introduce l-rhamnose (Rha), a hapten, via a click reaction with aza-dibenzocyclooctyne (DBCO)-Rha. We tested this method in several cell lines including KB, HEK-293, and MCF7 and were able to demonstrate the following: 1) Rha can be selectively installed to the folate receptor overexpressing cell surface and 2) the Rha installed on the target surface can recruit anti-rhamnose (anti-Rha) antibodies, leading to the destruction of target cells via complement-dependent cytotoxicity (CDC) and antibody-dependent cellular phagocytosis (ADCP).
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Affiliation(s)
- Shanshan Li
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Bingchen Yu
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Jiajia Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Yueqin Zheng
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Huajie Zhang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
- National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Glycochemistry Glycobiology, Shandong University, Jinan, Shandong 250100, People’s Republic of China
| | - Margaret J. Walker
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Zhengnan Yuan
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - He Zhu
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Jun Zhang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Peng George Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
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16
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Roslan II, Ng KH, Gondal MA, Basheer C, Dastageer MA, Jaenicke S, Chuah GK. Visible Light-Mediated Coupling of Thioureas and 1,3-Dicarbonyls: Towards a Leaving Group-Free Synthesis of Aminothiazoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701565] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Irwan Iskandar Roslan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543
| | - Kian-Hong Ng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543
| | - Mohammed Ashraf Gondal
- Physics Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Chanbasha Basheer
- Chemistry Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Mohamed A. Dastageer
- Physics Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Stephan Jaenicke
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543
| | - Gaik-Khuan Chuah
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543
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17
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Cosenza M, Civallero M, Marcheselli L, Sacchi S, Pozzi S. Ricolinostat, a selective HDAC6 inhibitor, shows anti-lymphoma cell activity alone and in combination with bendamustine. Apoptosis 2017; 22:827-840. [PMID: 28315173 PMCID: PMC5401712 DOI: 10.1007/s10495-017-1364-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Histone deacetylase inhibitors (HDACis) have emerged as a new class of anticancer agents, targeting the biological process including cell cycle and apoptosis. We investigated and explained the anticancer effects of an HDAC6 inhibitor, ricolinostat alone and in combination with bendamustine in lymphoma cell lines. Cell viability was measured by MTT assay. Apoptosis, reactive oxygen species (ROS) generation, Bcl-2 protein expression, cell cycle progression and tubuline expression were determined by flow cytometry. The effects of ricolinostat alone and in combination on the caspases, PI3K/Akt, Bcl-2 pathways, ER stress and UPR were assessed by immunoblotting. Ricolinostat shows anti lymphoma activity when used as single agent and its capability to induce apoptosis is synergistically potentiated by the bendamustine in lymphoma cell lines. Drug combination reduced the proportion of cells in the G0/G1 and S phases and caused an increase of "sub-G0/G1" peak. The synergistic effect accompanied with the increased ROS, activation of caspase-8, -9, and -3, the cleavage of PARP and modulated by Bcl-2 proteins family. In addition, the exposure of ricolinostat induced the acetylation level of α-tubulin, the extend of which was not further modified by bendamustine. Finally, the apoptosis effect of ricolinostat/bendamustine may be mediated by a corresponding effect on microtubule stabilization. Our data suggest that ricolinostat in combination with bendamustine may be a novel combination with potential for use as an antitumor agent in lymphoma.
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Affiliation(s)
- Maria Cosenza
- Program of Innovative Therapies in Oncology and Haematology, Department of Diagnostic Clinical and Public Health Medicine, University of Modena and Reggio Emilia, Via del Pozzo, 71, 41124, Modena, Italy
| | - Monica Civallero
- Program of Innovative Therapies in Oncology and Haematology, Department of Diagnostic Clinical and Public Health Medicine, University of Modena and Reggio Emilia, Via del Pozzo, 71, 41124, Modena, Italy
| | - Luigi Marcheselli
- Program of Innovative Therapies in Oncology and Haematology, Department of Diagnostic Clinical and Public Health Medicine, University of Modena and Reggio Emilia, Via del Pozzo, 71, 41124, Modena, Italy
| | - Stefano Sacchi
- Program of Innovative Therapies in Oncology and Haematology, Department of Diagnostic Clinical and Public Health Medicine, University of Modena and Reggio Emilia, Via del Pozzo, 71, 41124, Modena, Italy
| | - Samantha Pozzi
- Program of Innovative Therapies in Oncology and Haematology, Department of Diagnostic Clinical and Public Health Medicine, University of Modena and Reggio Emilia, Via del Pozzo, 71, 41124, Modena, Italy.
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18
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Roslan II, Ng KH, Chuah GK, Jaenicke S. Synthesis of 5-Phenylthiazolamines by Using Thiourea as an α-Bromination Shuttle. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601410] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Irwan Iskandar Roslan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Kian-Hong Ng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Gaik-Khuan Chuah
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Stephan Jaenicke
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
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19
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Zhou W, Ni S, Mei H, Han J, Pan Y. Cyclization reaction of N -allylbenzothioamide for direct construction of thiazole and thiazoline. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Mallia CJ, Englert L, Walter GC, Baxendale IR. Thiazole formation through a modified Gewald reaction. Beilstein J Org Chem 2015; 11:875-83. [PMID: 26124889 PMCID: PMC4464301 DOI: 10.3762/bjoc.11.98] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 04/23/2015] [Indexed: 11/23/2022] Open
Abstract
The synthesis of thiazoles and thiophenes starting from nitriles, via a modified Gewald reaction has been studied for a number of different substrates. 1,4-Dithiane-2,5-diol was used as the aldehyde precursor to give either 2-substituted thiazoles or 2-substituted aminothiophenes depending on the substitution of the α-carbon to the cyano group.
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Affiliation(s)
- Carl J Mallia
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, United Kingdom
| | - Lukas Englert
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, United Kingdom
| | - Gary C Walter
- Syngenta CP R&D Chemistry, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom
| | - Ian R Baxendale
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, United Kingdom
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21
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Design and structure activity relationship of tumor-homing histone deacetylase inhibitors conjugated to folic and pteroic acids. Eur J Med Chem 2015; 96:340-59. [PMID: 25899338 DOI: 10.1016/j.ejmech.2015.04.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 04/03/2015] [Accepted: 04/04/2015] [Indexed: 01/02/2023]
Abstract
Histone deacetylase (HDAC) inhibition has recently emerged as a novel therapeutic approach for the treatment of various pathological conditions including cancer. Currently, two HDAC inhibitors (HDACi) – Vorinostat and Romidepsin – have been approved for the treatment of cutaneous T-cell lymphoma. However, HDACi remain ineffective against solid tumors and are associated with adverse events including cardiotoxicity. Targeted delivery may enhance the therapeutic indices of HDACi and enable them to be efficacious against solid tumors. We showed herein that morphing of folic and pteroic acids into the surface recognition group of HDACi results in hydroxamate and benzamide HDACi which derived tumor homing by targeting folate receptor (FR), a receptor commonly overexpressed in solid tumors. We observed a correlation between the potency of HDAC1 inhibition and cytotoxicity as only the potent pteroate hydroxamates, 11d and 11e, displayed antiproliferative activity against two representative FR-expression cancer cells. Our observation further supports the previous results which suggest that for a drug to be successfully targeted using the FR, it must be extremely potent against its primary target as the FR has a low delivery efficiency.
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22
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Musiejuk M, Witt D. Recent Developments in the Synthesis of Unsymmetrical Disulfanes (Disulfides). A Review. ORG PREP PROCED INT 2015. [DOI: 10.1080/00304948.2015.1005981] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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23
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Hart LR, Harries JL, Greenland BW, Colquhoun HM, Hayes W. Molecular design of a discrete chain-folding polyimide for controlled inkjet deposition of supramolecular polymers. Polym Chem 2015. [DOI: 10.1039/c5py00622h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Herein we describe the generation of a well-defined polyimide to afford coloured supramolecular polymer assemblies with electronically complementary pyrenyl terminated polymers which can be inkjet printed.
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Affiliation(s)
- Lewis R. Hart
- Department of Chemistry
- University of Reading
- Reading
- UK
| | | | | | | | - Wayne Hayes
- Department of Chemistry
- University of Reading
- Reading
- UK
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24
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el Bahhaj F, Dekker FJ, Martinet N, Bertrand P. Delivery of epidrugs. Drug Discov Today 2014; 19:1337-52. [DOI: 10.1016/j.drudis.2014.03.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 02/28/2014] [Accepted: 03/19/2014] [Indexed: 12/22/2022]
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25
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Marchetti C, Palaia I, Giorgini M, De Medici C, Iadarola R, Vertechy L, Domenici L, Di Donato V, Tomao F, Muzii L, Benedetti Panici P. Targeted drug delivery via folate receptors in recurrent ovarian cancer: a review. Onco Targets Ther 2014; 7:1223-36. [PMID: 25031539 PMCID: PMC4096491 DOI: 10.2147/ott.s40947] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Ovarian cancer is the most common cause of gynecological cancer-related mortality, with the majority of women presenting with advanced disease; although chemotherapeutic advances have improved progression-free survival, conventional treatments offer limited results in terms of long-term responses and survival. Research has recently focused on targeted therapies, which represent a new, promising therapeutic approach, aimed to maximize tumor kill and minimize toxicity. Besides antiangiogenetic agents and poly (ADP-ribose) polymerase inhibitors, the folate, with its membrane-bound receptor, is currently one of the most investigated alternatives. In particular, folate receptor (FR) has been shown to be frequently overexpressed on the surface of almost all epithelial ovarian cancers, making this receptor an excellent tumor-associated antigen. There are two basic strategies to targeting FRs with therapeutic intent: the first is based on anti-FR antibody (ie, farletuzumab) and the second is based on folate–chemotherapy conjugates (ie, vintafolide/etarfolatide). Both strategies have been investigated in Phase III clinical trials. The aim of this review is to analyze the research regarding the activity of these promising anti-FR agents in patients affected by ovarian cancer, including anti-FR antibodies and folate–chemotherapy conjugates.
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Affiliation(s)
- Claudia Marchetti
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Innocenza Palaia
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Margherita Giorgini
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Caterina De Medici
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Roberta Iadarola
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Laura Vertechy
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Lavinia Domenici
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Violante Di Donato
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Federica Tomao
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Ludovico Muzii
- Department of Gynecology, Obstetrics and Urological Sciences, Sapienza University of Rome, Rome, Italy
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26
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Tani S, Uehara TN, Yamaguchi J, Itami K. Programmed synthesis of arylthiazoles through sequential C–H couplings. Chem Sci 2014. [DOI: 10.1039/c3sc52199k] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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27
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Folate-Targeted Nanoparticles Based on Albumin and Albumin/Alginate Mixtures as Controlled Release Systems of Tamoxifen: Synthesis and In Vitro Characterization. Pharm Res 2013; 31:182-93. [DOI: 10.1007/s11095-013-1151-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 07/16/2013] [Indexed: 10/26/2022]
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28
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Lee MH, Yang Z, Lim CW, Lee YH, Dongbang S, Kang C, Kim JS. Disulfide-Cleavage-Triggered Chemosensors and Their Biological Applications. Chem Rev 2013; 113:5071-109. [DOI: 10.1021/cr300358b] [Citation(s) in RCA: 602] [Impact Index Per Article: 54.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Min Hee Lee
- Department of Chemistry, Korea University, Seoul 136-701, Korea
| | - Zhigang Yang
- Department of Chemistry, Korea University, Seoul 136-701, Korea
| | - Choon Woo Lim
- East−West Medical Science, Kyung Hee University, Yongin 446-701, Korea
| | - Yun Hak Lee
- Department of Chemistry, Korea University, Seoul 136-701, Korea
| | - Sun Dongbang
- Department of Chemistry, Korea University, Seoul 136-701, Korea
| | - Chulhun Kang
- East−West Medical Science, Kyung Hee University, Yongin 446-701, Korea
| | - Jong Seung Kim
- Department of Chemistry, Korea University, Seoul 136-701, Korea
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29
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Abu Ajaj K, El-Abadla N, Welker P, Azab S, Zeisig R, Fichtner I, Kratz F. Comparative evaluation of the biological properties of reducible and acid-sensitive folate prodrugs of a highly potent doxorubicin derivative. Eur J Cancer 2012; 48:2054-65. [DOI: 10.1016/j.ejca.2011.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 06/24/2011] [Accepted: 08/15/2011] [Indexed: 11/24/2022]
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30
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Vlahov IR, Leamon CP. Engineering folate-drug conjugates to target cancer: from chemistry to clinic. Bioconjug Chem 2012; 23:1357-69. [PMID: 22667324 DOI: 10.1021/bc2005522] [Citation(s) in RCA: 186] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The folate receptor (FR) is a potentially useful biological target for the management of many human cancers. This membrane protein binds extracellular folates with very high affinity and, through an endocytic process, physically delivers them inside the cell for biological consumption. There are now many examples of how this physiological system can be exploited for the targeted delivery of biologically active molecules to cancer. In fact, strong preclinical as well as emerging clinical evidence exists showing how FR-positive cancers can be (i) anatomically identified using folate conjugates of radiodiagnostic imaging agents and (ii) effectively treated with companion folate-targeted chemotherapies. While the biological results are compelling, it is of equal importance to understand the conjugation chemistries that were developed to produce these active molecules. Therefore, this review will focus on the methods utilized to construct folate-based small-molecule drug conjugates (SMDCs), with particular attention focused on modular design, hydrophilic spacers, and self-immolative linkers.
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31
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Ota E, Takeiri M, Tachibana M, Ishikawa Y, Umezawa K, Nishiyama S. Synthesis and biological evaluation of molecular probes based on the 9-methylstreptimidone derivative DTCM-glutarimide. Bioorg Med Chem Lett 2011; 22:164-7. [PMID: 22153343 DOI: 10.1016/j.bmcl.2011.11.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 11/09/2011] [Accepted: 11/11/2011] [Indexed: 11/19/2022]
Abstract
Molecular probes based on 3-[(dodecylthiocarbonyl)methyl]glutarimide (DTCM-glutarimide) were synthesized and assessed for inhibitory activity against LPS-induced NO production. Among the probes examined, several derivatives exhibited potential for use in determining the target proteins of DTCM-glutarimide.
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Affiliation(s)
- Eisuke Ota
- Department of Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama 223-8522, Japan
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32
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Impact of the nature and size of the polymeric backbone on the ability of heterobifunctional ligands to mediate shiga toxin and serum amyloid p component ternary complex formation. Toxins (Basel) 2011; 3:1065-88. [PMID: 22069757 PMCID: PMC3202879 DOI: 10.3390/toxins3091065] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 08/16/2011] [Accepted: 08/19/2011] [Indexed: 01/27/2023] Open
Abstract
Inhibition of AB5-type bacterial toxins can be achieved by heterobifunctional ligands (BAITs) that mediate assembly of supramolecular complexes involving the toxin’s pentameric cell membrane-binding subunit and an endogenous protein, serum amyloid P component, of the innate immune system. Effective in vivo protection from Shiga toxin Type 1 (Stx1) is achieved by polymer-bound, heterobifunctional inhibitors-adaptors (PolyBAITs), which exhibit prolonged half-life in circulation and by mediating formation of face-to-face SAP-AB5 complexes, block receptor recognition sites and redirect toxins to the spleen and liver for degradation. Direct correlation between solid-phase activity and protective dose of PolyBAITs both in the cytotoxicity assay and in vivo indicate that the mechanism of protection from intoxication is inhibition of toxin binding to the host cell membrane. The polymeric scaffold influences the activity not only by clustering active binding fragments but also by sterically interfering with the supramolecular complex assembly. Thus, inhibitors based on N-(2-hydroxypropyl) methacrylamide (HPMA) show significantly lower activity than polyacrylamide-based analogs. The detrimental steric effect can partially be alleviated by extending the length of the spacer, which separates pendant ligand from the backbone, as well as extending the spacer, which spans the distance between binding moieties within each heterobifunctional ligand. Herein we report that polymer size and payload of the active ligand had moderate effects on the inhibitor’s activity.
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33
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Jiao Z, Wang X, Chen Z. Folate-conjugated methoxy poly (ethylene glycol)/poly (L-Alanine) amphiphilic block copolymeric micelles for targeted delivery of paclitaxel. Drug Deliv 2011; 18:478-84. [DOI: 10.3109/10717544.2011.589086] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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34
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Major Jourden JL, Cohen SM. Enzymatic activation of a matrix metalloproteinase inhibitor. Chem Commun (Camb) 2010; 46:1241-3. [PMID: 20449263 PMCID: PMC2867072 DOI: 10.1039/b923302d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Matrix metalloproteinase inhibitors (MMPi) possessing a glucose protecting group on the zinc-binding group (ZBG) show a dramatic increase in inhibitory activity upon cleavage by beta-glucosidase.
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Affiliation(s)
- Jody L. Major Jourden
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California, 92093-0358, USA
| | - Seth M. Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California, 92093-0358, USA
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35
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Lam JKW, Armes SP, Lewis AL, Stolnik S. Folate conjugated phosphorylcholine-based polycations for specific targeting in nucleic acids delivery. J Drug Target 2009; 17:512-23. [PMID: 19534582 DOI: 10.1080/10611860903023312] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Folic acid has been investigated as a targeting ligand for imaging and therapeutic agent for over a decade; however, studies on its use in targeting of nonviral gene or nucleic acids delivery systems are sparse. This study assesses potential application of a new folic acid conjugate with aminomethacrylate-phosphoryl-choline based copolymer (DMAEMA-MPC-FA) as a targeting gene delivery vector. The folate-conjugated polymers produce colloidally stable polyplexes with a particle size <200 nm and demonstrate the ability to protect DNA from enzymatic degradation to a certain extent. In cells that overexpress folate receptors (MCF-7 and KB cultures), the conjugated systems show a folate-specific association and achieved significantly enhanced transfection efficiency, compared to the nonconjugated control, with a dramatically reduced nonspecific cellular association. The transfection enhancement is achieved without a corresponding increase in cellular association, suggesting that an internal cellular trafficking of folate-conjugated system may be altered, resulting in an increased transfection efficacy. In summary, a new folate-conjugated aminomethacrylate-phosphorylcholine copolymer is capable of forming colloidal complexes with DNA, modulating their specific cell uptake and improving the level of cell transfection in folate expressing cells.
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Affiliation(s)
- J K W Lam
- School of Pharmacy, University of Nottingham, Nottingham, UK
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36
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Song HY, Ngai MH, Song ZY, MacAry PA, Hobley J, Lear MJ. Practical synthesis of maleimides and coumarin-linked probes for protein and antibody labelling via reduction of native disulfides. Org Biomol Chem 2009; 7:3400-6. [DOI: 10.1039/b904060a] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Abstract
Targeted delivery via selective cellular markers can potentially increase the efficacy and reduce the toxicity of therapeutic agents. The folate receptor (FR) has two glycosyl phosphatidylinositol (GPI)-anchored isoforms, alpha and beta. FR-alpha expression is frequently amplified in epithelial cancers, whereas FR-beta expression is found in myeloid leukemia and activated macrophages associated with chronic inflammatory diseases. Conjugates of folic acid and anti-FR antibodies can be taken up by cancer cells via receptor-mediated endocytosis, thus providing a mechanism for targeted delivery to FR+ cells. The aim of this article is to provide a brief overview of applications of FR targeting in drug delivery, with an emphasis on the strategy of using folate as a targeting ligand. In order to do this, recent literature is surveyed on targeted delivery via both FR sub-types, as well as new findings on selective receptor upregulation in the targeted cells. A wide variety of molecules and drug carriers, including imaging agents, chemotherapeutic agents, oligonucleotides, proteins, haptens, liposomes, nanoparticles and gene transfer vectors have been conjugated to folate and evaluated for FR-targeted delivery. Substantial targeting efficacy has been found both in vitro and in vivo. In addition, mechanisms and methods for selective FR upregulation have been uncovered, which might enhance the effectiveness of the FR-targeted delivery strategy. FR-alpha serves as a useful marker for cancer, whereas FR-beta serves as a marker for myeloid leukemia and chronic inflammatory diseases. FR-targeted agents have shown promising efficacy in preclinical models and significant potential for future clinical application in a wide range of diseases.
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Affiliation(s)
- Xiaobin Zhao
- Abbott Laboratories, Global Pharmaceutics and Life Cycle Technology, Abbott Park, IL 60064, USA
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38
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Histone deacetylase inhibitors: a novel class of anti-cancer agents on its way to the market. PROGRESS IN MEDICINAL CHEMISTRY 2008; 46:205-80. [PMID: 18381127 DOI: 10.1016/s0079-6468(07)00005-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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