1
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Mahmood A, Iqbal J. Purinergic receptors modulators: An emerging pharmacological tool for disease management. Med Res Rev 2022; 42:1661-1703. [PMID: 35561109 DOI: 10.1002/med.21888] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/16/2022] [Accepted: 05/04/2022] [Indexed: 11/10/2022]
Abstract
Purinergic signaling is mediated through extracellular nucleotides (adenosine 5'-triphosphate, uridine-5'-triphosphate, adenosine diphosphate, uridine-5'-diphosphate, and adenosine) that serve as signaling molecules. In the early 1990s, purines and pyrimidine receptors were cloned and characterized drawing the attention of scientists toward this aspect of cellular signaling. This signaling pathway is comprised of four subtypes of adenosine receptors (P1), eight subtypes of G-coupled protein receptors (P2YRs), and seven subtypes of ligand-gated ionotropic receptors (P2XRs). In current studies, the pathophysiology and therapeutic potentials of these receptors have been focused on. Various ligands, modulating the functions of purinergic receptors, are in current clinical practices for the treatment of various neurodegenerative disorders and cardiovascular diseases. Moreover, several purinergic receptors ligands are in advanced phases of clinical trials as a remedy for depression, epilepsy, autism, osteoporosis, atherosclerosis, myocardial infarction, diabetes, irritable bowel syndrome, and cancers. In the present study, agonists and antagonists of purinergic receptors have been summarized that may serve as pharmacological tools for drug design and development.
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Affiliation(s)
- Abid Mahmood
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
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2
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Weghorst F, Mirzakhanyan Y, Hernandez KL, Gershon PD, Cramer KS. Non-Apoptotic Caspase Activity Preferentially Targets a Novel Consensus Sequence Associated With Cytoskeletal Proteins in the Developing Auditory Brainstem. Front Cell Dev Biol 2022; 10:844844. [PMID: 35330912 PMCID: PMC8940215 DOI: 10.3389/fcell.2022.844844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 01/28/2022] [Indexed: 11/24/2022] Open
Abstract
The auditory brainstem relies on precise circuitry to facilitate sound source localization. In the chick, the development of this specialized circuitry requires non-apoptotic activity of caspase-3, for which we previously identified several hundred proteolytic substrates. Here we tested whether the sequence of the caspase cleavage site differentially encodes proteolytic preference in apoptotic and non-apoptotic contexts. We constructed a consensus sequence for caspase activity in the non-apoptotic chick auditory brainstem comprising the four residues N-terminal to the cleavage site: IX(G/R)D↓ where X represents no significant enrichment and ↓ represents the cleavage site. We identified GO terms significantly enriched among caspase substrates containing motifs found in the above consensus sequence. (G/R)D↓ was associated with the term “Structural Constituent of Cytoskeleton” (SCoC), suggesting that SCoC proteins may be specifically targeted by caspase activity during non-apoptotic developmental processes. To ascertain whether this consensus sequence was specific to the non-apoptotic auditory brainstem at embryonic day (E) 10, we used protein mass spectrometry of brainstems harvested at a time when auditory brainstem neurons undergo apoptotic cell death (E13). The apoptotic motif VD was significantly enriched among E13 cleavage sites, indicating that motif preference at the P2 subsite had shifted toward the canonical caspase consensus sequence. Additionally, Monte Carlo simulations revealed that only the GD motif was associated with SCoC substrates in the apoptotic auditory brainstem, indicating that GD encodes specificity for SCoC proteins in both non-apoptotic and apoptotic contexts, despite not being preferred in the latter. Finally, to identify candidate human non-apoptotic consensus sequences, we used Monte Carlo analyses to determine motifs and motif pairs associated with SCoC caspase substrates in the Degrabase, a database of cleavage sites in human apoptotic cell lines. We found 11 motifs significantly associated with SCoC proteolysis, including IXXD and GD. We employed a stepwise method to select motif pairs that optimized SCoC specificity for a given coverage of SCoC cleavage events, yielding 11 motif pairs likely to be preferred in SCoC-directed human non-apoptotic caspase consensus sequences. GD + IXXD was among these motif pairs, suggesting a conservation of non-apoptotic consensus sites among vertebrates.
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Affiliation(s)
- Forrest Weghorst
- Department of Neurobiology and Behavior, UC Irvine, Irvine, CA, United States
| | - Yeva Mirzakhanyan
- Department of Molecular Biology and Biochemistry, UC Irvine, Irvine, CA, United States
| | | | - Paul D Gershon
- Department of Molecular Biology and Biochemistry, UC Irvine, Irvine, CA, United States
| | - Karina S Cramer
- Department of Neurobiology and Behavior, UC Irvine, Irvine, CA, United States
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3
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Roychowdury H, Romero PA. Microfluidic deep mutational scanning of the human executioner caspases reveals differences in structure and regulation. Cell Death Dis 2022; 8:7. [PMID: 35013287 PMCID: PMC8748541 DOI: 10.1038/s41420-021-00799-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 12/02/2021] [Accepted: 12/14/2021] [Indexed: 12/19/2022]
Abstract
The human caspase family comprises 12 cysteine proteases that are centrally involved in cell death and inflammation responses. The members of this family have conserved sequences and structures, highly similar enzymatic activities and substrate preferences, and overlapping physiological roles. In this paper, we present a deep mutational scan of the executioner caspases CASP3 and CASP7 to dissect differences in their structure, function, and regulation. Our approach leverages high-throughput microfluidic screening to analyze hundreds of thousands of caspase variants in tightly controlled in vitro reactions. The resulting data provides a large-scale and unbiased view of the impact of amino acid substitutions on the proteolytic activity of CASP3 and CASP7. We use this data to pinpoint key functional differences between CASP3 and CASP7, including a secondary internal cleavage site, CASP7 Q196 that is not present in CASP3. Our results will open avenues for inquiry in caspase function and regulation that could potentially inform the development of future caspase-specific therapeutics.
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Affiliation(s)
| | - Philip A Romero
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA. .,Department of Chemical & Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA. .,The University of Wisconsin Carbone Cancer Center, Madison, WI, USA.
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4
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Abdelsayed EM, Medhat D, Mandour YM, Hanafi RS, Motaal AA. Niazimicin: A thiocarbamate glycoside from Moringa oleifera Lam. seeds with a novel neuroprotective activity. J Food Biochem 2021; 45:e13992. [PMID: 34747026 DOI: 10.1111/jfbc.13992] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/18/2021] [Accepted: 10/19/2021] [Indexed: 11/29/2022]
Abstract
Moringa oleifera (MO) known as the miracle tree is a famous nutritional source in many countries. In this study, the neuroprotective activity of MO seeds was investigated. Fractions of the 70% ethanol seed extract of MO were injected at a dose of 250 mg kg-1 day-1 to albino rats for 15 days, after-which induction of dementia was done using 100 mg/kg AlCl3 over 30 days. Results revealed that all fractions ameliorated the effects of AlCl3 where methylene chloride and ethyl acetate fractions, containing the major bioactive compound niazimicin (NZ), showed the best activities. Biological investigations proved NZ to be a highly potent neuroprotective drug lead as a first report, by causing a decrease in the levels of malondialdehyde, cholinesterase, nitric oxide (NO) and amyloid β by 47%, 34%, 53% and 59%, respectively, and increasing glutathione levels by 54%. Molecular docking studies suggested NZ neuroprotective effects to be mediated by inhibition of caspase-3 and inducible nitric oxide synthase enzymes. PRACTICAL APPLICATIONS: The current findings present the neuroprotective effect of Moringa oleifera seeds consumed as a food supplement and in daily diet. In addition, niazimicin is a promising lead for the development of novel agents against Alzheimer's disease as seen by the reported results.
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Affiliation(s)
- Eman M Abdelsayed
- School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, Cairo, Egypt.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
| | - Dalia Medhat
- Department of Medical Biochemistry, National Research Centre, Giza, Egypt
| | - Yasmine M Mandour
- School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, Cairo, Egypt.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
| | - Rasha S Hanafi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
| | - Amira Abdel Motaal
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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5
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Dhani S, Zhao Y, Zhivotovsky B. A long way to go: caspase inhibitors in clinical use. Cell Death Dis 2021; 12:949. [PMID: 34654807 PMCID: PMC8519909 DOI: 10.1038/s41419-021-04240-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/15/2021] [Accepted: 09/28/2021] [Indexed: 12/19/2022]
Abstract
Caspases are an evolutionary conserved family of cysteine-dependent proteases that are involved in many vital cellular processes including apoptosis, proliferation, differentiation and inflammatory response. Dysregulation of caspase-mediated apoptosis and inflammation has been linked to the pathogenesis of various diseases such as inflammatory diseases, neurological disorders, metabolic diseases, and cancer. Multiple caspase inhibitors have been designed and synthesized as a potential therapeutic tool for the treatment of cell death-related pathologies. However, only a few have progressed to clinical trials because of the consistent challenges faced amongst the different types of caspase inhibitors used for the treatment of the various pathologies, namely an inadequate efficacy, poor target specificity, or adverse side effects. Importantly, a large proportion of this failure lies in the lack of understanding various caspase functions. To overcome the current challenges, further studies on understanding caspase function in a disease model is a fundamental requirement to effectively develop their inhibitors as a treatment for the different pathologies. Therefore, the present review focuses on the descriptive properties and characteristics of caspase inhibitors known to date, and their therapeutic application in animal and clinical studies. In addition, a brief discussion on the achievements, and current challenges faced, are presented in support to providing more perspectives for further development of successful therapeutic caspase inhibitors for various diseases.
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Affiliation(s)
- Shanel Dhani
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden
| | - Yun Zhao
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden
| | - Boris Zhivotovsky
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden.
- Faculty of Medicine, MV Lomonosov Moscow State University, 119991, Moscow, Russia.
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6
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Breidenbach J, Bartz U, Gütschow M. Coumarin as a structural component of substrates and probes for serine and cysteine proteases. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2020; 1868:140445. [PMID: 32405284 PMCID: PMC7219385 DOI: 10.1016/j.bbapap.2020.140445] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/23/2020] [Accepted: 05/07/2020] [Indexed: 02/08/2023]
Abstract
Coumarins represent well-established structures to introduce fluorescence into tool compounds for biochemical investigations. They are valued for their small size, chemical stability and accessibility as well as their tunable photochemical properties. As components of fluorophore/quencher pairs or FRET donor/acceptor pairs, coumarins have frequently been applied in substrate mapping approaches for serine and cysteine proteases. This review also focuses on the incorporation of coumarins into the side chain of amino acids and the exploitation of the resulting fluorescent amino acids for the positional profiling of protease substrates. The protease-inhibiting properties of certain coumarin derivatives and the utilization of coumarin moieties to assemble activity-based probes for serine and cysteine proteases are discussed as well. Coumarins represent well-established structures to introduce fluorescence into tool compounds for biochemical investigations. They are valued for their small size, chemical stability and accessibility as well as their tunable photochemical properties. Coumarins are components of fluorophore/quencher pairs or FRET donor/acceptor pairs in substrate mapping of proteases. Coumarins have been incorporated into amino acids side chains to be used for the positional profiling of protease substrates. Coumarins have protease-inhibiting properties and are used for activity-based probes for serine and cysteine proteases.
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Affiliation(s)
- Julian Breidenbach
- Pharmaceutical Institute, Department of Pharmaceutical & Medicinal Chemistry, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
| | - Ulrike Bartz
- Department of Natural Sciences, University of Applied Sciences Bonn-Rhein-Sieg, von-Liebig-Str. 20, 53359 Rheinbach, Germany
| | - Michael Gütschow
- Pharmaceutical Institute, Department of Pharmaceutical & Medicinal Chemistry, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany.
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7
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Ghosh AK, Samanta I, Mondal A, Liu WR. Covalent Inhibition in Drug Discovery. ChemMedChem 2019; 14:889-906. [PMID: 30816012 DOI: 10.1002/cmdc.201900107] [Citation(s) in RCA: 148] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Indexed: 12/11/2022]
Abstract
Although covalent inhibitors have been used as therapeutics for more than a century, there has been general resistance in the pharmaceutical industry against their further development due to safety concerns. This inclination has recently been reverted after the development of a wide variety of covalent inhibitors to address human health conditions along with the US Food and Drug Administration (FDA) approval of several covalent therapeutics for use in humans. Along with this exciting resurrection of an old drug discovery concept, this review surveys enzymes that can be targeted by covalent inhibitors for the treatment of human diseases. We focus on protein kinases, RAS proteins, and a few other enzymes that have been studied extensively as targets for covalent inhibition, with the aim to address challenges in designing effective covalent drugs and to provide suggestions in the area that have yet to be explored.
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Affiliation(s)
- Avick Kumar Ghosh
- Department of Chemistry, Texas A&M University, Corner of Ross and Spence Streets, College Station, TX, 77843, USA
| | - Indranil Samanta
- Department of Chemistry, Texas A&M University, Corner of Ross and Spence Streets, College Station, TX, 77843, USA
| | - Anushree Mondal
- Department of Chemistry, Texas A&M University, Corner of Ross and Spence Streets, College Station, TX, 77843, USA
| | - Wenshe Ray Liu
- Department of Chemistry, Texas A&M University, Corner of Ross and Spence Streets, College Station, TX, 77843, USA
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8
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Huan LC, Phuong CV, Truc LC, Thanh VN, Pham-The H, Huong LTT, Thuan NT, Park EJ, Ji AY, Kang JS, Han SB, Tran PT, Nam NH. (E)-N'-Arylidene-2-(4-oxoquinazolin-4(3H)-yl) acetohydrazides: Synthesis and evaluation of antitumor cytotoxicity and caspase activation activity. J Enzyme Inhib Med Chem 2019; 34:465-478. [PMID: 30734614 PMCID: PMC6338265 DOI: 10.1080/14756366.2018.1555536] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
In our search for novel small molecules activating procaspase-3, we have designed and synthesised a series of novel acetohydrazides incorporating quinazolin-4(3H)-ones (5, 6, 7). Biological evaluation revealed eight compounds with significant cytotoxicity against three human cancer cell lines (SW620, colon cancer; PC-3, prostate cancer; NCI-H23, lung cancer). The most potent compound 5t displayed cytotoxicity up to 5-fold more potent than 5-FU. Analysis of structure-activity relationships showed that the introduction of different substituents at C-6 position on the quinazolin-4(3H)-4-one moiety, such as 6-chloro or 6-methoxy potentially increased the cytotoxicity of the compounds. In term of caspase activation activity, several compounds were found to exhibit potent effects, (e.g. compounds 7 b, 5n, and 5l). Especially, compound 7 b activated caspases activity by almost 200% in comparison to that of PAC-1. Further docking simulation also revealed that this compound potentially is a potent allosteric inhibitor of procaspase-3.
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Affiliation(s)
- Le Cong Huan
- a Pharmaceutical Chemistry , Hanoi University of Pharmacy , Hanoi , Vietnam
| | - Cao Viet Phuong
- a Pharmaceutical Chemistry , Hanoi University of Pharmacy , Hanoi , Vietnam
| | - Le Cong Truc
- a Pharmaceutical Chemistry , Hanoi University of Pharmacy , Hanoi , Vietnam
| | - Vo Nguyen Thanh
- a Pharmaceutical Chemistry , Hanoi University of Pharmacy , Hanoi , Vietnam
| | - Hai Pham-The
- a Pharmaceutical Chemistry , Hanoi University of Pharmacy , Hanoi , Vietnam
| | - Le-Thi-Thu Huong
- b School of Medicine and Pharmacy , Vietnam National University , Hanoi , Vietnam
| | - Nguyen Thi Thuan
- a Pharmaceutical Chemistry , Hanoi University of Pharmacy , Hanoi , Vietnam
| | - Eun Jae Park
- c College of Pharmacy , Chungbuk National University , Cheongju , Republic of Korea
| | - A Young Ji
- c College of Pharmacy , Chungbuk National University , Cheongju , Republic of Korea
| | - Jong Soon Kang
- d Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju , Republic of Korea
| | - Sang-Bae Han
- c College of Pharmacy , Chungbuk National University , Cheongju , Republic of Korea
| | - Phuong-Thao Tran
- a Pharmaceutical Chemistry , Hanoi University of Pharmacy , Hanoi , Vietnam
| | - Nguyen-Hai Nam
- a Pharmaceutical Chemistry , Hanoi University of Pharmacy , Hanoi , Vietnam
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9
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Bingöl EN, Serçinoğlu O, Ozbek P. How do mutations and allosteric inhibitors modulate caspase-7 activity? A molecular dynamics study. J Biomol Struct Dyn 2018; 37:3456-3466. [DOI: 10.1080/07391102.2018.1517611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Elif Naz Bingöl
- Department of Bioengineering, Institute of Pure and Applied Sciences, Marmara University, Istanbul, Turkey
| | - Onur Serçinoğlu
- Department of Bioengineering, Institute of Pure and Applied Sciences, Marmara University, Istanbul, Turkey
- Faculty of Engineering, Department of Bioengineering, Marmara University, Istanbul, Turkey
| | - Pemra Ozbek
- Faculty of Engineering, Department of Bioengineering, Marmara University, Istanbul, Turkey
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10
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Krishna Deepak RNV, Abdullah A, Talwar P, Fan H, Ravanan P. Identification of FDA-approved drugs as novel allosteric inhibitors of human executioner caspases. Proteins 2018; 86:1202-1210. [PMID: 30194780 DOI: 10.1002/prot.25601] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 09/03/2018] [Accepted: 09/04/2018] [Indexed: 01/10/2023]
Abstract
The regulation of apoptosis is a tightly coordinated process and caspases are its chief regulators. Of special importance are the executioner caspases, caspase-3/7, the activation of which irreversibly sets the cell on the path of death. Dysregulation of apoptosis, particularly an increased rate of cell death lies at the root of numerous human diseases. Although several peptide-based inhibitors targeting the homologous active site region of caspases have been developed, owing to their non-specific activity and poor pharmacological properties their use has largely been restricted. Thus, we sought to identify FDA-approved drugs that could be repurposed as novel allosteric inhibitors of caspase-3/7. In this study, we virtually screened a catalog of FDA-approved drugs targeting an allosteric pocket located at the dimerization interface of caspase-3/7. From among the top-scoring hits we short-listed 5 compounds for experimental validation. Our enzymatic assays using recombinant caspase-3 suggested that 4 out of the 5 drugs effectively inhibited caspase-3 enzymatic activity in vitro with IC50 values ranging ~10-55 μM. Structural analysis of the docking poses show the 4 compounds forming specific non-covalent interactions at the allosteric pocket suggesting that these molecules could disrupt the adjacently-located active site. In summary, we report the identification of 4 novel non-peptide allosteric inhibitors of caspase-3/7 from among FDA-approved drugs.
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Affiliation(s)
- R N V Krishna Deepak
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Ahmad Abdullah
- Apoptosis and Cell Survival Research Laboratory, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, India
| | - Priti Talwar
- Apoptosis and Cell Survival Research Laboratory, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, India
| | - Hao Fan
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), Singapore.,Department of Biological Sciences, National University of Singapore, Singapore.,Centre for Computational Biology, DUKE-NUS Medical School, Singapore
| | - Palaniyandi Ravanan
- Apoptosis and Cell Survival Research Laboratory, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, India
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11
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Lee H, Shin EA, Lee JH, Ahn D, Kim CG, Kim JH, Kim SH. Caspase inhibitors: a review of recently patented compounds (2013-2015). Expert Opin Ther Pat 2017; 28:47-59. [DOI: 10.1080/13543776.2017.1378426] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hyemin Lee
- Cancer Molecular Targeted Herbal Research Center, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Eun Ah Shin
- Cancer Molecular Targeted Herbal Research Center, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Jae Hee Lee
- Department of East West Medical Science, Graduate School of East West Medical Science Kyung Hee University, Yongin, South Korea
| | - Deoksoo Ahn
- Cancer Molecular Targeted Herbal Research Center, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Chang Geun Kim
- Cancer Molecular Targeted Herbal Research Center, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Ju-Ha Kim
- Cancer Molecular Targeted Herbal Research Center, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Sung-Hoon Kim
- Cancer Molecular Targeted Herbal Research Center, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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12
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The Intersection of Structural and Chemical Biology - An Essential Synergy. Cell Chem Biol 2016; 23:173-182. [PMID: 26933743 DOI: 10.1016/j.chembiol.2015.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 12/04/2015] [Accepted: 12/04/2015] [Indexed: 12/22/2022]
Abstract
The continual improvement in our ability to generate high resolution structural models of biological molecules has stimulated and supported innovative chemical biology projects that target increasingly challenging ligand interaction sites. In this review we outline some of the recent developments in chemical biology and rational ligand design and show selected examples that illustrate the synergy between these research areas.
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13
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Mnie-Filali O, Lau T, Matthaeus F, Abrial E, Delcourte S, El Mansari M, Pershon A, Schloss P, Sánchez C, Haddjeri N. Protein Kinases Alter the Allosteric Modulation of the Serotonin Transporter In Vivo and In Vitro. CNS Neurosci Ther 2016; 22:691-9. [PMID: 27171685 DOI: 10.1111/cns.12562] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/14/2016] [Accepted: 04/17/2016] [Indexed: 01/17/2023] Open
Abstract
AIM Studies using S- and R-enantiomers of the SSRI citalopram have shown that R-citalopram exerts an antagonistic effect on the efficacy of the antidepressant S-citalopram (escitalopram) through an interaction at an allosteric modulator site on the serotonin transporter (SERT). Here, we show that protein kinase signaling systems are involved in the allosteric modulation of the SERT in vivo and in vitro. METHODS We assessed the effects of nonspecific protein kinase inhibitor staurosporine in the action of escitalopram and/or R-citalopram using electrophysiological and behavioral assays in rats and cell surface SERT expression measures in serotoninergic cells. RESULTS Acute administration of R-citalopram counteracted the escitalopram-induced suppression of the serotonin (5-HT) neuronal firing activity and increase of the head twitches number following L-5-hydroxytryptophan injection. Importantly, these counteracting effects of R-citalopram were abolished by prior systemic administration of staurosporine. Interestingly, the preventing effect of staurosporine on 5-HT neuronal firing activity was abolished by direct activation of protein kinase C with phorbol 12-myristate 13-acetate. Finally, in vitro, quantification of the amount of cell surface-expressed SERT molecules revealed that R-citalopram prevented escitalopram-induced SERT internalization that was completely altered by staurosporine. CONCLUSION Taken together, these results highlight for the first time an involvement of protein kinases in the allosteric modulation of SERT function.
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Affiliation(s)
- Ouissame Mnie-Filali
- Univ Lyon, Université Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, 69500 Bron, France.,Department of Integrative Neurophysiology, CNCR, Vrije Universiteit, Amsterdam, The Netherlands
| | - Thorsten Lau
- Biochemical Laboratory, Central Institute of Mental Health, Mannheim, Germany
| | | | - Erika Abrial
- Univ Lyon, Université Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, 69500 Bron, France
| | - Sarah Delcourte
- Univ Lyon, Université Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, 69500 Bron, France
| | - Mostafa El Mansari
- Institute of Mental Health Research, University of Ottawa, Ottawa, ON, Canada
| | - Alan Pershon
- Neuropharmacology, Lundbeck Research USA, Paramus, NJ, USA
| | - Patrick Schloss
- Biochemical Laboratory, Central Institute of Mental Health, Mannheim, Germany
| | - Connie Sánchez
- Neuropharmacology, Lundbeck Research USA, Paramus, NJ, USA
| | - Nasser Haddjeri
- Univ Lyon, Université Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, 69500 Bron, France
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14
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In Vivo Evaluation of Radiofluorinated Caspase-3/7 Inhibitors as Radiotracers for Apoptosis Imaging and Comparison with [18F]ML-10 in a Stroke Model in the Rat. Mol Imaging Biol 2015; 18:117-26. [DOI: 10.1007/s11307-015-0865-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Abstract
Allostery is the most direct and efficient way for regulation of biological macromolecule function, ranging from the control of metabolic mechanisms to signal transduction pathways. Allosteric modulators target to allosteric sites, offering distinct advantages compared to orthosteric ligands that target to active sites, such as greater specificity, reduced side effects, and lower toxicity. Allosteric modulators have therefore drawn increasing attention as potential therapeutic drugs in the design and development of new drugs. In recent years, advancements in our understanding of the fundamental principles underlying allostery, coupled with the exploitation of powerful techniques and methods in the field of allostery, provide unprecedented opportunities to discover allosteric proteins, detect and characterize allosteric sites, design and develop novel efficient allosteric drugs, and recapitulate the universal features of allosteric proteins and allosteric modulators. In the present review, we summarize the recent advances in the repertoire of allostery, with a particular focus on the aforementioned allosteric compounds.
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Affiliation(s)
- Shaoyong Lu
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao-Tong University School of Medicine (SJTU-SM), Shanghai, China
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16
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Theoretical study on the allosteric regulation of an oligomeric protease from Pyrococcus horikoshii by Cl- Ion. Molecules 2014; 19:1828-42. [PMID: 24514746 PMCID: PMC6270742 DOI: 10.3390/molecules19021828] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 01/23/2014] [Accepted: 01/27/2014] [Indexed: 01/24/2023] Open
Abstract
The thermophilic intracellular protease (PH1704) from Pyrococcus horikoshii that functions as an oligomer (hexamer or higher forms) has proteolytic activity and remarkable stability. PH1704 is classified as a member of the C56 family of peptidases. This study is the first to observe that the use of Cl- as an allosteric inhibitor causes appreciable changes in the catalytic activity of the protease. Theoretical methods were used for further study. Quantum mechanical calculations indicated the binding mode of Cl- with Arg113. A molecular dynamics simulation explained how Cl- stabilized distinct contact species and how it controls the enzyme activity. The new structural insights obtained from this study are expected to stimulate further biochemical studies on the structures and mechanisms of allosteric proteases. It is clear that the discovery of new allosteric sites of the C56 family of peptidases may generate opportunities for pharmaceutical development and increases our understanding of the basic biological processes of this peptidase family.
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Pereira C, Lopes-Rodrigues V, Coutinho I, Neves MP, Lima RT, Pinto M, Cidade H, Vasconcelos MH, Saraiva L. Potential small-molecule activators of caspase-7 identified using yeast-based caspase-3 and -7 screening assays. Eur J Pharm Sci 2014; 54:8-16. [PMID: 24398107 DOI: 10.1016/j.ejps.2013.12.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 12/20/2013] [Accepted: 12/28/2013] [Indexed: 11/29/2022]
Abstract
Caspases-3 and -7 are at the core of the execution phase of apoptosis. The search for activators of these proteases has therefore deserved particular attention in the field of anticancer drug discovery. Here, a simplified yeast-based screening approach was developed and used to search for activators of caspases-3 and -7, followed by evaluation of the activity of the selected compounds in the human tumor cell lines HL-60 (acute promyelocytic leukemia) and MCF-7 (breast adenocarcinoma). By using the yeast approach, two potential activators of caspase-7, 5,6-dihydroxy-7-prenyloxyflavone (1a) and 3-hydroxy-7-geranyloxyflavone (2a), were identified. Unlike the known caspases-3 and -7 activator, the procaspase activating compound-1 (PAC-1), these flavonoids did not interfere with the caspase-3 activity in yeast. Moreover, flavonoids 1a and 2a processed procaspase-7 to the active caspase-7 both in yeast and in vitro processing assays, and inhibited the growth of HL-60 and MCF-7 human tumor cells with higher potencies than PAC-1, particularly in the absence of caspase-3 (MCF-7 cells). In MCF-7 cells, the flavonoids processed procaspase-7, increased its activity and sensitized these cells to the effects of the cytotoxic drug, etoposide. In conclusion, the developed yeast target-based screening assays led to the identification of potential caspase-7 activators. A proof of concept is therefore provided for the effectiveness of the yeast assays in the discovery of caspase activators. Additionally, the identified compounds may pave the way for a new class of caspase activators with improved anticancer properties.
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Affiliation(s)
- Clara Pereira
- REQUIMTE, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira no. 228, 4050-313 Porto, Portugal; Laboratório de Microbiologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira no. 228, 4050-313 Porto, Portugal
| | - Vanessa Lopes-Rodrigues
- Cancer Drug Resistance Group, IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Rua Doutor Roberto Frias, 4200 Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Rua dos Bragas n° 289, 4050-123 Porto, Portugal
| | - Isabel Coutinho
- REQUIMTE, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira no. 228, 4050-313 Porto, Portugal; Laboratório de Microbiologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira no. 228, 4050-313 Porto, Portugal
| | - Marta P Neves
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Rua dos Bragas n° 289, 4050-123 Porto, Portugal; Centro de Química Medicinal da Universidade do Porto (CEQUIMED-UP), and Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal
| | - Raquel T Lima
- Cancer Drug Resistance Group, IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Rua Doutor Roberto Frias, 4200 Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Rua dos Bragas n° 289, 4050-123 Porto, Portugal
| | - Madalena Pinto
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Rua dos Bragas n° 289, 4050-123 Porto, Portugal; Centro de Química Medicinal da Universidade do Porto (CEQUIMED-UP), and Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal
| | - Honorina Cidade
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Rua dos Bragas n° 289, 4050-123 Porto, Portugal; Centro de Química Medicinal da Universidade do Porto (CEQUIMED-UP), and Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal
| | - M Helena Vasconcelos
- Laboratório de Microbiologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira no. 228, 4050-313 Porto, Portugal; Cancer Drug Resistance Group, IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Rua Doutor Roberto Frias, 4200 Porto, Portugal
| | - Lucília Saraiva
- REQUIMTE, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira no. 228, 4050-313 Porto, Portugal; Laboratório de Microbiologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira no. 228, 4050-313 Porto, Portugal.
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18
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Modulating caspase activity: beyond the active site. Curr Opin Struct Biol 2013; 23:812-9. [DOI: 10.1016/j.sbi.2013.10.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 10/14/2013] [Indexed: 12/16/2022]
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19
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Abstract
The presence of druggable, topographically distinct allosteric sites on a wide range of receptor families has offered new paradigms for small molecules to modulate receptor function. Moreover, ligands that target allosteric sites offer significant advantages over the corresponding orthosteric ligands in terms of selectivity, including subtype selectivity within receptor families, and can also impart improved physicochemical properties. However, allosteric ligands are not a panacea. Many chemical issues (e.g., flat structure-activity relationships) and pharmacological issues (e.g., ligand-biased signaling) that are allosteric centric have emerged. Notably, the fact that allosteric sites are less evolutionarily conserved leads to improved selectivity; however, this can also lead to species differences that can hinder safety assessment. Many allosteric ligands possess molecular switches, wherein a small structural change (chemical or metabolic) can modulate the mode of pharmacology or receptor subtype selectivity. As the field has matured, as described here, key principles and strategies have emerged for the design of ligands/drugs for allosteric sites.
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Affiliation(s)
- Cody J Wenthur
- Department of Pharmacology, Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6600;
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20
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Matias AC, Manieri TM, Cipriano SS, Carioni VM, Nomura CS, Machado CM, Cerchiaro G. Diethyldithiocarbamate induces apoptosis in neuroblastoma cells by raising the intracellular copper level, triggering cytochrome c release and caspase activation. Toxicol In Vitro 2013; 27:349-57. [DOI: 10.1016/j.tiv.2012.08.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 08/09/2012] [Accepted: 08/09/2012] [Indexed: 01/09/2023]
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21
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Merdanovic M, Mönig T, Ehrmann M, Kaiser M. Diversity of allosteric regulation in proteases. ACS Chem Biol 2013. [PMID: 23181429 DOI: 10.1021/cb3005935] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Allostery is a fundamental regulatory mechanism that is based on a functional modulation of a site by a distant site. Allosteric regulation can be triggered by binding of diverse allosteric effectors, ranging from small molecules to macromolecules, and is therefore offering promising opportunities for functional modulation in a wide range of applications including the development of chemical probes or drug discovery. Here, we provide an overview of key classes of allosteric protease effectors, their corresponding molecular mechanisms, and their practical implications.
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Affiliation(s)
- Melisa Merdanovic
- Department of Microbiology
II and ‡Department
of Chemical Biology, Center for Medical Biotechnology,
Faculty of Biology, University of Duisburg-Essen, Universtitätsstr.
2, 45117 Essen, Germany
| | - Timon Mönig
- Department of Microbiology
II and ‡Department
of Chemical Biology, Center for Medical Biotechnology,
Faculty of Biology, University of Duisburg-Essen, Universtitätsstr.
2, 45117 Essen, Germany
| | - Michael Ehrmann
- Department of Microbiology
II and ‡Department
of Chemical Biology, Center for Medical Biotechnology,
Faculty of Biology, University of Duisburg-Essen, Universtitätsstr.
2, 45117 Essen, Germany
| | - Markus Kaiser
- Department of Microbiology
II and ‡Department
of Chemical Biology, Center for Medical Biotechnology,
Faculty of Biology, University of Duisburg-Essen, Universtitätsstr.
2, 45117 Essen, Germany
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Krause-Heuer AM, Howell NR, Matesic L, Dhand G, Young EL, Burgess L, Jiang CD, Lengkeek NA, Fookes CJR, Pham TQ, Sobrio F, Greguric I, Fraser BH. A new class of fluorinated 5-pyrrolidinylsulfonyl isatin caspase inhibitors for PET imaging of apoptosis. MEDCHEMCOMM 2013. [DOI: 10.1039/c2md20249b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Targeting mutant huntingtin for the development of disease-modifying therapy. Drug Discov Today 2012; 17:1217-23. [PMID: 22772050 DOI: 10.1016/j.drudis.2012.06.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 06/09/2012] [Accepted: 06/27/2012] [Indexed: 12/31/2022]
Abstract
Huntington's disease (HD) is a progressive and fatal neurodegenerative disease, and the most common inherited CAG repeat disorder. A polyglutamine expansion in the N-terminus of the huntingtin protein (HTT) leads to protein misfolding and downstream pathogenic processes culminating in widespread functional impairment and neurodegeneration in the striatum, cortex and other brain areas. To date, only symptomatic treatments are available that address motor, psychiatric and cognitive deficits. Here we review recent strategies for developing disease-modifying therapies designed to limit or abolish the pathogenic activities of the primary molecular target in HD, the mutant HTT protein itself.
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Allosteric modulators of rhodopsin-like G protein-coupled receptors: opportunities in drug development. Pharmacol Ther 2012; 135:292-315. [PMID: 22728155 DOI: 10.1016/j.pharmthera.2012.06.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 06/07/2012] [Indexed: 11/21/2022]
Abstract
Rhodopsin-like (class A) G protein-coupled receptors (GPCRs) are one of the most important classes of drug targets. The discovery that these GPCRs can be allosterically modulated by small drug molecules has opened up new opportunities in drug development. It will allow the drugability of "difficult targets", such as GPCRs activated by large (glyco)proteins, or by very polar or highly lipophilic physiological agonists. Receptor subtype selectivity should be more easily achievable with allosteric than with orthosteric ligands. Allosteric modulation will allow a broad spectrum of pharmacological effects largely expanding that of orthosteric ligands. Furthermore, allosteric modulators may show an improved safety profile as compared to orthosteric ligands. Only recently, the explicit search for allosteric modulators has been started for only a few rhodopsin-like GPCRs. The first negative allosteric modulators (allosteric antagonists) of chemokine receptors, maraviroc (CCR5 receptor), used in HIV therapy, and plerixafor (CXCR4 receptor) for stem cell mobilization, have been approved as drugs. The development of allosteric modulators for rhodopsin-like GPCRs as novel drugs is still at an early stage; it appears highly promising.
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