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Ren Z, Liu N, Jia H, Sun M, Ma S, Zhao B, Chen Y, Miao X, Cao Z, Dong J. Discovery of Aldehyde Dehydrogenase as a Potential Fungicide Target and Screening of its Natural Inhibitors against Fusarium verticillioides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39172074 DOI: 10.1021/acs.jafc.4c05553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Fusarium verticillioides is the primary pathogen causing ear rot and stalk rot in corn (Zea mays). It not only affects yields but also produces mycotoxins endangering both human and animal health. Aldehyde dehydrogenase (ALDH) is essential for the oxidation of aldehydes in living organisms, making it a potential target for human drug design. However, there are limited reports on its function in plant pathogenic fungus. In this study, we analyzed the expression levels and gene knockout mutants, revealing that ALDH genes FvALDH-43 and FvALDH-96 in F. verticillioides played significant roles in pathogenicity and resistance to low-temperature stress by affecting antioxidant capacity. Virtual screening for natural product inhibitors and molecular docking were performed targeting FvALDH-43 and FvALDH-96. Following the biological activity analysis, three natural flavonoid compounds featuring a 2-hydroxyphenol chromene were identified. Among these, Taxifolin exhibited the highest biological activity and low toxicity. Both in vitro and in vivo biological evaluations confirmed that Taxifolin targeted ALDH and inhibited its activity. These findings indicate that aldehyde dehydrogenase may serve as a promising target for the design of novel fungicides.
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Affiliation(s)
- Zhiguo Ren
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Ning Liu
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Hui Jia
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Manli Sun
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Shujie Ma
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Bin Zhao
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Yue Chen
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
| | - Xiaoyang Miao
- Hebei Peiran's Century Nutritional Foods Co., Ltd., Cangzhou 061000, China
| | - Zhiyan Cao
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Jingao Dong
- State Key Laboratory of North China Crop Improvement and regulation/Hebei Key Laboratory of Plant Physiology and Molecular Pathology, Baoding 071000, China
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
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2
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Xanthis V, Mantso T, Dimtsi A, Pappa A, Fadouloglou VE. Human Aldehyde Dehydrogenases: A Superfamily of Similar Yet Different Proteins Highly Related to Cancer. Cancers (Basel) 2023; 15:4419. [PMID: 37686694 PMCID: PMC10650815 DOI: 10.3390/cancers15174419] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
The superfamily of human aldehyde dehydrogenases (hALDHs) consists of 19 isoenzymes which are critical for several physiological and biosynthetic processes and play a major role in the organism's detoxification via the NAD(P) dependent oxidation of numerous endogenous and exogenous aldehyde substrates to their corresponding carboxylic acids. Over the last decades, ALDHs have been the subject of several studies as it was revealed that their differential expression patterns in various cancer types are associated either with carcinogenesis or promotion of cell survival. Here, we attempt to provide a thorough review of hALDHs' diverse functions and 3D structures with particular emphasis on their role in cancer pathology and resistance to chemotherapy. We are especially interested in findings regarding the association of structural features and their changes with effects on enzymes' functionalities. Moreover, we provide an updated outline of the hALDHs inhibitors utilized in experimental or clinical settings for cancer therapy. Overall, this review aims to provide a better understanding of the impact of ALDHs in cancer pathology and therapy from a structural perspective.
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Affiliation(s)
| | | | | | | | - Vasiliki E. Fadouloglou
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
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3
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Catron MA, Howe RK, Besing GLK, St. John EK, Potesta CV, Gallagher MJ, Macdonald RL, Zhou C. Sleep slow-wave oscillations trigger seizures in a genetic epilepsy model of Dravet syndrome. Brain Commun 2022; 5:fcac332. [PMID: 36632186 PMCID: PMC9830548 DOI: 10.1093/braincomms/fcac332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/09/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Sleep is the preferential period when epileptic spike-wave discharges appear in human epileptic patients, including genetic epileptic seizures such as Dravet syndrome with multiple mutations including SCN1A mutation and GABAA receptor γ2 subunit Gabrg2Q390X mutation in patients, which presents more severe epileptic symptoms in female patients than male patients. However, the seizure onset mechanism during sleep still remains unknown. Our previous work has shown that the sleep-like state-dependent homeostatic synaptic potentiation can trigger epileptic spike-wave discharges in one transgenic heterozygous Gabrg2+/Q390X knock-in mouse model.1 Here, using this heterozygous knock-in mouse model, we hypothesized that slow-wave oscillations themselves in vivo could trigger epileptic seizures. We found that epileptic spike-wave discharges in heterozygous Gabrg2+/Q390X knock-in mice exhibited preferential incidence during non-rapid eye movement sleep period, accompanied by motor immobility/facial myoclonus/vibrissal twitching and more frequent spike-wave discharge incidence appeared in female heterozygous knock-in mice than male heterozygous knock-in mice. Optogenetically induced slow-wave oscillations in vivo significantly increased epileptic spike-wave discharge incidence in heterozygous Gabrg2+/Q390X knock-in mice with longer duration of non-rapid eye movement sleep or quiet-wakeful states. Furthermore, suppression of slow-wave oscillation-related homeostatic synaptic potentiation by 4-(diethylamino)-benzaldehyde injection (i.p.) greatly attenuated spike-wave discharge incidence in heterozygous knock-in mice, suggesting that slow-wave oscillations in vivo did trigger seizure activity in heterozygous knock-in mice. Meanwhile, sleep spindle generation in wild-type littermates and heterozygous Gabrg2+/Q390X knock-in mice involved the slow-wave oscillation-related homeostatic synaptic potentiation that also contributed to epileptic spike-wave discharge generation in heterozygous Gabrg2+/Q390X knock-in mice. In addition, EEG spectral power of delta frequency (0.1-4 Hz) during non-rapid eye movement sleep was significantly larger in female heterozygous Gabrg2+/Q390X knock-in mice than that in male heterozygous Gabrg2+/Q390X knock-in mice, which likely contributes to the gender difference in seizure incidence during non-rapid eye movement sleep/quiet-wake states of human patients. Overall, all these results indicate that slow-wave oscillations in vivo trigger the seizure onset in heterozygous Gabrg2+/Q390X knock-in mice, preferentially during non-rapid eye movement sleep period and likely generate the sex difference in seizure incidence between male and female heterozygous Gabrg2+/Q390X knock-in mice.
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Affiliation(s)
- Mackenzie A Catron
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Neuroscience Graduate Program, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Rachel K Howe
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Gai-Linn K Besing
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Emily K St. John
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | | | - Martin J Gallagher
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Neuroscience Graduate Program, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Robert L Macdonald
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Neuroscience Graduate Program, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Chengwen Zhou
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Neuroscience Graduate Program, Vanderbilt University Medical Center, Nashville, TN 37232, USA
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Ma M, He W, Zhao K, Xue L, Xia S, Zhang B. Targeting aldehyde dehydrogenase for prostate cancer therapies. Front Oncol 2022; 12:1006340. [PMID: 36300093 PMCID: PMC9589344 DOI: 10.3389/fonc.2022.1006340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/26/2022] [Indexed: 11/25/2022] Open
Abstract
Prostate cancer (PCa) is the most common cancer in men in the United States. About 10 – 20% of PCa progress to castration-resistant PCa (CRPC), which is accompanied by metastasis and therapeutic resistance. Aldehyde dehydrogenase (ALDH) is famous as a marker of cancer stem-like cells in different cancer types, including PCa. Generally, ALDHs catalyze aldehyde oxidation into less toxic carboxylic acids and give cancers a survival advantage by reducing oxidative stress caused by aldehyde accumulation. In PCa, the expression of ALDHs is associated with a higher tumor stage and more lymph node metastasis. Functionally, increased ALDH activity makes PCa cells gain more capabilities in self-renewal and metastasis and reduces the sensitivity to castration and radiotherapy. Therefore, it is promising to target ALDH or ALDHhigh cells to eradicate PCa. However, challenges remain in moving the ALDH inhibitors to PCa therapy, potentially due to the toxicity of pan-ALDH inhibitors, the redundancy of ALDH isoforms, and the lack of explicit understanding of the metabolic signaling transduction details. For targeting PCa stem-like cells (PCSCs), different regulators have been revealed in ALDHhigh cells to control cell proliferation and tumorigenicity. ALDH rewires essential signaling transduction in PCa cells. It has been shown that ALDHs produce retinoic acid (RA), bind with androgen, and modulate diverse signaling. This review summarizes and discusses the pathways directly modulated by ALDHs, the crucial regulators that control the activities of ALDHhigh PCSCs, and the recent progress of ALDH targeted therapies in PCa. These efforts will provide insight into improving ALDH-targeted treatment.
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Affiliation(s)
| | | | | | | | - Siyuan Xia
- *Correspondence: Siyuan Xia, ; Baotong Zhang,
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5
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Castellví A, Pequerul R, Barracco V, Juanhuix J, Parés X, Farrés J. Structural and biochemical evidence that ATP inhibits the cancer biomarker human aldehyde dehydrogenase 1A3. Commun Biol 2022; 5:354. [PMID: 35418200 PMCID: PMC9007972 DOI: 10.1038/s42003-022-03311-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 03/24/2022] [Indexed: 11/15/2022] Open
Abstract
Human aldehyde dehydrogenase (ALDH) participates in the oxidative stress response and retinoid metabolism, being involved in several diseases, including cancer, diabetes and obesity. The ALDH1A3 isoform has recently elicited wide interest because of its potential use as a cancer stem cell biomarker and drug target. We report high-resolution three-dimensional ALDH1A3 structures for the apo-enzyme, the NAD+ complex and a binary complex with ATP. Each subunit of the ALDH1A3-ATP complex contains one ATP molecule bound to the adenosine-binding pocket of the cofactor-binding site. The ATP complex also shows a molecule, putatively identified as a polyethylene glycol aldehyde, covalently bound to the active-site cysteine. This mimics the thioacyl-enzyme catalytic intermediate, which is trapped in a dead enzyme lacking an active cofactor. At physiological concentrations, ATP inhibits the dehydrogenase activity of ALDH1A3 and other isoforms, with a Ki value of 0.48 mM for ALDH1A3, showing a mixed inhibition type against NAD+. ATP also inhibits esterase activity in a concentration-dependent manner. The current ALDH1A3 structures at higher resolution will facilitate the rational design of potent and selective inhibitors. ATP binding to ALDH1A3 enables activity modulation by the energy status of the cell and metabolic reprogramming, which may be relevant in several disease conditions. Three X-ray structures are presented of human aldehyde dehydrogenase family 1 member A3 (ALDH1A3), a potential cancer stem cell biomarker (alone, with NAD+ and with ATP) and structure determination performed using molecular replacement.
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Affiliation(s)
- Albert Castellví
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Barcelona, Spain.,Alba Synchrotron, carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Barcelona, Spain
| | - Raquel Pequerul
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Barcelona, Spain
| | - Vito Barracco
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Barcelona, Spain
| | - Judith Juanhuix
- Alba Synchrotron, carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Barcelona, Spain
| | - Xavier Parés
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Barcelona, Spain
| | - Jaume Farrés
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Barcelona, Spain.
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6
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Ibrahim AIM, Batlle E, Sneha S, Jiménez R, Pequerul R, Parés X, Rüngeler T, Jha V, Tuccinardi T, Sadiq M, Frame F, Maitland NJ, Farrés J, Pors K. Expansion of the 4-(Diethylamino)benzaldehyde Scaffold to Explore the Impact on Aldehyde Dehydrogenase Activity and Antiproliferative Activity in Prostate Cancer. J Med Chem 2022; 65:3833-3848. [PMID: 35212533 PMCID: PMC9007462 DOI: 10.1021/acs.jmedchem.1c01367] [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] [Indexed: 12/02/2022]
Abstract
![]()
Aldehyde dehydrogenases (ALDHs) are
overexpressed in various tumor
types including prostate cancer and considered a potential target
for therapeutic intervention. 4-(Diethylamino)benzaldehyde (DEAB)
has been extensively reported as a pan-inhibitor of ALDH isoforms,
and here, we report on the synthesis, ALDH isoform selectivity, and
cellular potencies in prostate cancer cells of 40 DEAB analogues;
three analogues (14, 15, and 16) showed potent inhibitory activity against ALDH1A3, and two analogues
(18 and 19) showed potent inhibitory activity
against ALDH3A1. Significantly, 16 analogues displayed increased cytotoxicity
(IC50 = 10–200 μM) compared with DEAB (>200
μM) against three different prostate cancer cell lines. Analogues 14 and 18 were more potent than DEAB against
patient-derived primary prostate tumor epithelial cells, as single
agents or in combination treatment with docetaxel. In conclusion,
our study supports the use of DEAB as an ALDH inhibitor but also reveals
closely related analogues with increased selectivity and potency.
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Affiliation(s)
- Ali I M Ibrahim
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Yorkshire BD7 1DP, U.K.,Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Elisabet Batlle
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Yorkshire BD7 1DP, U.K.,Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona E-08193, Spain
| | - Smarakan Sneha
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Yorkshire BD7 1DP, U.K
| | - Rafael Jiménez
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona E-08193, Spain
| | - Raquel Pequerul
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona E-08193, Spain
| | - Xavier Parés
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona E-08193, Spain
| | - Till Rüngeler
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona E-08193, Spain
| | - Vibhu Jha
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Tiziano Tuccinardi
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Maria Sadiq
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Yorkshire BD7 1DP, U.K.,Cancer Research Unit, Department of Biology, University of York, Heslington, Yorkshire YO10 5DD, U.K
| | - Fiona Frame
- Cancer Research Unit, Department of Biology, University of York, Heslington, Yorkshire YO10 5DD, U.K
| | - Norman J Maitland
- Cancer Research Unit, Department of Biology, University of York, Heslington, Yorkshire YO10 5DD, U.K
| | - Jaume Farrés
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona E-08193, Spain
| | - Klaus Pors
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Yorkshire BD7 1DP, U.K
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Design, Synthesis, Biological Evaluation and In Silico Study of Benzyloxybenzaldehyde Derivatives as Selective ALDH1A3 Inhibitors. Molecules 2021; 26:molecules26195770. [PMID: 34641313 PMCID: PMC8510124 DOI: 10.3390/molecules26195770] [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: 08/06/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 11/16/2022] Open
Abstract
Aldehyde dehydrogenase 1A3 (ALDH1A3) has recently gained attention from researchers in the cancer field. Several studies have reported ALDH1A3 overexpression in different cancer types, which has been found to correlate with poor treatment recovery. Therefore, finding selective inhibitors against ALDH1A3 could result in new treatment options for cancer treatment. In this study, ALDH1A3-selective candidates were designed based on the physiological substrate resemblance, synthesized and investigated for ALDH1A1, ALDH1A3 and ALDH3A1 selectivity and cytotoxicity using ALDH-positive A549 and ALDH-negative H1299 cells. Two compounds (ABMM-15 and ABMM-16), with a benzyloxybenzaldehyde scaffold, were found to be the most potent and selective inhibitors for ALDH1A3, with IC50 values of 0.23 and 1.29 µM, respectively. The results also show no significant cytotoxicity for ABMM-15 and ABMM-16 on either cell line. However, a few other candidates (ABMM-6, ABMM-24, ABMM-32) showed considerable cytotoxicity on H1299 cells, when compared to A549 cells, with IC50 values of 14.0, 13.7 and 13.0 µM, respectively. The computational study supported the experimental results and suggested a good binding for ABMM-15 and ABMM-16 to the ALDH1A3 isoform. From the obtained results, it can be concluded that benzyloxybenzaldehyde might be considered a promising scaffold for further drug discovery aimed at exploiting ALDH1A3 for therapeutic intervention.
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Püschel J, Dubrovska A, Gorodetska I. The Multifaceted Role of Aldehyde Dehydrogenases in Prostate Cancer Stem Cells. Cancers (Basel) 2021; 13:4703. [PMID: 34572930 PMCID: PMC8472046 DOI: 10.3390/cancers13184703] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/27/2021] [Accepted: 09/13/2021] [Indexed: 02/06/2023] Open
Abstract
Cancer stem cells (CSCs) are the only tumor cells possessing self-renewal and differentiation properties, making them an engine of tumor progression and a source of tumor regrowth after treatment. Conventional therapies eliminate most non-CSCs, while CSCs often remain radiation and drug resistant, leading to tumor relapse and metastases. Thus, targeting CSCs might be a powerful tool to overcome tumor resistance and increase the efficiency of current cancer treatment strategies. The identification and isolation of the CSC population based on its high aldehyde dehydrogenase activity (ALDH) is widely accepted for prostate cancer (PCa) and many other solid tumors. In PCa, several ALDH genes contribute to the ALDH activity, which can be measured in the enzymatic assay by converting 4, 4-difluoro-4-bora-3a, 4a-diaza-s-indacene (BODIPY) aminoacetaldehyde (BAAA) into the fluorescent product BODIPY-aminoacetate (BAA). Although each ALDH isoform plays an individual role in PCa biology, their mutual functional interplay also contributes to PCa progression. Thus, ALDH proteins are markers and functional regulators of CSC properties, representing an attractive target for cancer treatment. In this review, we discuss the current state of research regarding the role of individual ALDH isoforms in PCa development and progression, their possible therapeutic targeting, and provide an outlook for the future advances in this field.
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Affiliation(s)
- Jakob Püschel
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, 01309 Dresden, Germany;
| | - Anna Dubrovska
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, 01309 Dresden, Germany;
- National Center for Tumor Diseases (NCT), Partner Site Dresden, German Cancer Research Center (DKFZ), Heidelberg, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, and Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01307 Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiooncology-OncoRay, 01328 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Ielizaveta Gorodetska
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, 01309 Dresden, Germany;
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9
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Housh K, Jha JS, Haldar T, Amin SBM, Islam T, Wallace A, Gomina A, Guo X, Nel C, Wyatt JW, Gates KS. Formation and repair of unavoidable, endogenous interstrand cross-links in cellular DNA. DNA Repair (Amst) 2021; 98:103029. [PMID: 33385969 PMCID: PMC8882318 DOI: 10.1016/j.dnarep.2020.103029] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 02/08/2023]
Abstract
Genome integrity is essential for life and, as a result, DNA repair systems evolved to remove unavoidable DNA lesions from cellular DNA. Many forms of life possess the capacity to remove interstrand DNA cross-links (ICLs) from their genome but the identity of the naturally-occurring, endogenous substrates that drove the evolution and retention of these DNA repair systems across a wide range of life forms remains uncertain. In this review, we describe more than a dozen chemical processes by which endogenous ICLs plausibly can be introduced into cellular DNA. The majority involve DNA degradation processes that introduce aldehyde residues into the double helix or reactions of DNA with endogenous low molecular weight aldehyde metabolites. A smaller number of the cross-linking processes involve reactions of DNA radicals generated by oxidation.
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Affiliation(s)
- Kurt Housh
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Jay S Jha
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Tuhin Haldar
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Saosan Binth Md Amin
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Tanhaul Islam
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Amanda Wallace
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Anuoluwapo Gomina
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Xu Guo
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Christopher Nel
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Jesse W Wyatt
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States
| | - Kent S Gates
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211, United States; University of Missouri, Department of Biochemistry, Columbia, MO 65211, United States.
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Korasick DA, Tanner JJ. Impact of missense mutations in the ALDH7A1 gene on enzyme structure and catalytic function. Biochimie 2020; 183:49-54. [PMID: 32956737 DOI: 10.1016/j.biochi.2020.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/05/2020] [Accepted: 09/15/2020] [Indexed: 12/21/2022]
Abstract
Certain mutations in the ALDH7A1 gene cause pyridoxine-dependent epilepsy (PDE), an autosomal recessive metabolic disease characterized by seizures, and in some cases, intellectual disability. The mutational spectrum of PDE is vast and includes over 70 missense mutations. This review summarizes the current state of biochemical and biophysical research on the impact of PDE missense mutations on the structure and catalytic activity of ALDH7A1. Paradoxically, some mutations that target active site residues have a relatively modest impact on structure and function, while those remote from the active site can have profound effects. For example, missense mutations targeting remote residues in oligomer interfaces tend to strongly impact catalytic function by inhibiting formation of the active tetramer. These results shows that it remains very difficult to predict the impact of missense mutations, even when the structure of the wild-type enzyme is known. Additional biophysical analyses of many more disease-causing mutations are needed to develop the rules for predicting the impact of genetic mutations on enzyme structure and catalytic function.
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Affiliation(s)
- David A Korasick
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States
| | - John J Tanner
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States; Department of Chemistry, University of Missouri, Columbia, MO, 65211, United States.
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11
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Wyatt JW, Korasick DA, Qureshi IA, Campbell AC, Gates KS, Tanner JJ. Inhibition, crystal structures, and in-solution oligomeric structure of aldehyde dehydrogenase 9A1. Arch Biochem Biophys 2020; 691:108477. [PMID: 32717224 DOI: 10.1016/j.abb.2020.108477] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/19/2020] [Accepted: 06/20/2020] [Indexed: 10/23/2022]
Abstract
Aldehyde dehydrogenase 9A1 (ALDH9A1) is a human enzyme that catalyzes the NAD+-dependent oxidation of the carnitine precursor 4-trimethylaminobutyraldehyde to 4-N-trimethylaminobutyrate. Here we show that the broad-spectrum ALDH inhibitor diethylaminobenzaldehyde (DEAB) reversibly inhibits ALDH9A1 in a time-dependent manner. Possible mechanisms of inhibition include covalent reversible inactivation involving the thiohemiacetal intermediate and slow, tight-binding inhibition. Two crystal structures of ALDH9A1 are reported, including the first of the enzyme complexed with NAD+. One of the structures reveals the active conformation of the enzyme, in which the Rossmann dinucleotide-binding domain is fully ordered and the inter-domain linker adopts the canonical β-hairpin observed in other ALDH structures. The oligomeric structure of ALDH9A1 was investigated using analytical ultracentrifugation, small-angle X-ray scattering, and negative stain electron microscopy. These data show that ALDH9A1 forms the classic ALDH superfamily dimer-of-dimers tetramer in solution. Our results suggest that the presence of an aldehyde substrate and NAD+ promotes isomerization of the enzyme into the active conformation.
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Affiliation(s)
- Jesse W Wyatt
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, United States
| | - David A Korasick
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States
| | - Insaf A Qureshi
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad, 500046, India
| | - Ashley C Campbell
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States
| | - Kent S Gates
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, United States; Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States
| | - John J Tanner
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, United States; Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States.
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12
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Hasse D, Hülsemann J, Carlsson GH, Valegård K, Andersson I. Structure and mechanism of piperideine-6-carboxylate dehydrogenase from Streptomyces clavuligerus. ACTA CRYSTALLOGRAPHICA SECTION D-STRUCTURAL BIOLOGY 2019; 75:1107-1118. [PMID: 31793904 DOI: 10.1107/s2059798319014852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 11/04/2019] [Indexed: 11/11/2022]
Abstract
The core of β-lactam antibiotics originates from amino acids of primary metabolism in certain microorganisms. β-Lactam-producing bacteria, including Streptomyces clavuligerus, synthesize the precursor of the amino acid α-aminoadipic acid by the catabolism of lysine in two steps. The second reaction, the oxidation of piperideine-6-carboxylate (or its open-chain form α-aminoadipate semialdehyde) to α-aminoadipic acid, is catalysed by the NAD+-dependent enzyme piperideine-6-carboxylate dehydrogenase (P6CDH). This structural study, focused on ligand binding and catalysis, presents structures of P6CDH from S. clavuligerus in its apo form and in complexes with the cofactor NAD+, the product α-aminoadipic acid and a substrate analogue, picolinic acid. P6CDH adopts the common aldehyde dehydrogenase fold, consisting of NAD-binding, catalytic and oligomerization domains. The product binds in the oxyanion hole, close to the catalytic residue Cys299. Clear density is observed for the entire cofactor, including the nicotinamide riboside, in the binary complex. NAD+ binds in an extended conformation with its nicotinamide ring overlapping with the binding site of the carboxylate group of the product, implying that the conformation of the cofactor may change during catalysis. The binding site of the substrate analogue overlaps with that of the product, suggesting that the cyclic form of the substrate, piperideine-6-carboxylate, may be accepted as a substrate by the enzyme. The catalytic mechanism and the roles of individual residues are discussed in light of these results.
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Affiliation(s)
- Dirk Hasse
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3, Box 596, SE-751 24 Uppsala, Sweden
| | - Janne Hülsemann
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3, Box 596, SE-751 24 Uppsala, Sweden
| | - Gunilla H Carlsson
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3, Box 596, SE-751 24 Uppsala, Sweden
| | - Karin Valegård
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3, Box 596, SE-751 24 Uppsala, Sweden
| | - Inger Andersson
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3, Box 596, SE-751 24 Uppsala, Sweden
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13
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Laciak AR, Korasick DA, Wyatt JW, Gates KS, Tanner JJ. Structural and biochemical consequences of pyridoxine-dependent epilepsy mutations that target the aldehyde binding site of aldehyde dehydrogenase ALDH7A1. FEBS J 2019; 287:173-189. [PMID: 31302938 DOI: 10.1111/febs.14997] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/21/2019] [Accepted: 07/10/2019] [Indexed: 01/17/2023]
Abstract
In humans, certain mutations in the gene encoding aldehyde dehydrogenase 7A1 are associated with pyridoxine-dependent epilepsy (PDE). Understanding the impact of PDE-causing mutations on the structure and activity of ALDH7A1 could allow for the prediction of symptom-severity and aid the development of patient-specific medical treatments. Herein, we investigate the biochemical and structural consequences of PDE missense mutations targeting residues in the aldehyde substrate binding site: N167S, P169S, A171V, G174V, and W175G. All but G174V could be purified for biochemical and X-ray crystallographic analysis. W175G has a relatively mild kinetic defect, exhibiting a fivefold decrease in kcat with no change in Km . P169S and N167S have moderate defects, characterized by catalytic efficiencies of 20- and 100-times lower than wild-type, respectively. A171V has a profound functional defect, with catalytic efficiency 2000-times lower than wild-type. The crystal structures of the variants are the first for any PDE-associated mutant of ALDH7A1. The structures show that missense mutations that decrease the steric bulk of the side chain tend to create a cavity in the active site. The protein responds by relaxing into the vacant space, and this structural perturbation appears to cause misalignment of the aldehyde substrate in W175G and N167S. The P169S structure is nearly identical to that of the wild-type enzyme; however, analysis of B-factors suggests the catalytic defect may result from altered protein dynamics. The A171V structure suggests that the potential for steric clash with Val171 prevents Glu121 from ion pairing with the amino group of the aldehyde substrate. ENZYMES: Aldehyde dehydrogenase 7A1 (EC1.2.1.31). DATABASES: Coordinates have been deposited in the Protein Data Bank under the following accession codes: 6O4B, 6O4C, 6O4D, 6O4E, 6O4F, 6O4G, 6O4H.
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Affiliation(s)
- Adrian R Laciak
- Department of Chemistry, University of Missouri, Columbia, MO, USA
| | - David A Korasick
- Department of Biochemistry, University of Missouri, Columbia, MO, USA
| | - Jesse W Wyatt
- Department of Chemistry, University of Missouri, Columbia, MO, USA
| | - Kent S Gates
- Department of Chemistry, University of Missouri, Columbia, MO, USA.,Department of Biochemistry, University of Missouri, Columbia, MO, USA
| | - John J Tanner
- Department of Chemistry, University of Missouri, Columbia, MO, USA.,Department of Biochemistry, University of Missouri, Columbia, MO, USA
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14
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Verma H, Singh Bahia M, Choudhary S, Kumar Singh P, Silakari O. Drug metabolizing enzymes-associated chemo resistance and strategies to overcome it. Drug Metab Rev 2019; 51:196-223. [DOI: 10.1080/03602532.2019.1632886] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Himanshu Verma
- MolecularModelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India
| | | | - Shalki Choudhary
- MolecularModelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India
| | - Pankaj Kumar Singh
- MolecularModelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India
| | - Om Silakari
- MolecularModelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India
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15
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Ray S, Murkin AS. New Electrophiles and Strategies for Mechanism-Based and Targeted Covalent Inhibitor Design. Biochemistry 2019; 58:5234-5244. [PMID: 30990686 DOI: 10.1021/acs.biochem.9b00293] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Covalent inhibitors are experiencing a growing resurgence in drug design and are an increasingly useful tool in molecular biology. The ability to attach inhibitors to their targets by a covalent linkage offers pharmacodynamic and pharmacokinetic advantages, but this can also be a liability if undesired off-target reactions are not mitigated. The discovery of new electrophilic groups that react selectively with specific amino acid residues is therefore highly desirable in the design of targeted covalent inhibitors (TCIs). Additionally, the ability to control the reactivity through exploitation of the target enzyme's machinery, as in mechanism-based inhibitors (MBIs), greatly benefits from the discovery of new strategies. This Perspective showcases recent advances in electrophile development and their application in TCIs and MBIs, exhibiting high selectivity for their targets.
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Affiliation(s)
- Sneha Ray
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
| | - Andrew S Murkin
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
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16
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Stoll G, Kremer M, Bloy N, Joseph A, Castedo M, Meurice G, Klein C, Galluzzi L, Michels J, Kroemer G. Metabolic enzymes expressed by cancer cells impact the immune infiltrate. Oncoimmunology 2019; 8:e1571389. [PMID: 31069148 DOI: 10.1080/2162402x.2019.1571389] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/17/2018] [Accepted: 01/07/2019] [Indexed: 12/16/2022] Open
Abstract
The expression of two metabolic enzymes, i.e., aldehyde dehydrogenase 7 family, member A1 (ALDH7A1) and lipase C, hepatic type (LIPC) by malignant cells, has been measured by immunohistochemical methods in non-small cell lung carcinoma (NSCLC) biopsies, and has been attributed negative and positive prognostic value, respectively. Here, we demonstrate that the protein levels of ALDH7A1 and LIPC correlate with the levels of the corresponding mRNAs. Bioinformatic analyses of gene expression data from 4921 cancer patients revealed that the expression of LIPC positively correlates with abundant tumor infiltration by myeloid and lymphoid cells in NSCLC, breast carcinoma, colorectal cancer and melanoma samples. In contrast, high levels of ALDH7A1 were associated with a paucity of immune effectors within the tumor bed. These data reinforce the notion that the metabolism of cancer cells has a major impact on immune and inflammatory processes in the tumor microenvironment, pointing to hitherto unsuspected intersections between oncometabolism and immunometabolism.
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Affiliation(s)
- Gautier Stoll
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Centre de Recherche des Cordeliers, Equipe 11 labellisée Ligue Nationale contre le Cancer, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1138, Paris, France.,Université Pierre et Marie Curie/Paris VI, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Margerie Kremer
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Centre de Recherche des Cordeliers, Equipe 11 labellisée Ligue Nationale contre le Cancer, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1138, Paris, France.,Université Pierre et Marie Curie/Paris VI, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Normal Bloy
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Centre de Recherche des Cordeliers, Equipe 11 labellisée Ligue Nationale contre le Cancer, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1138, Paris, France.,Université Pierre et Marie Curie/Paris VI, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Adrien Joseph
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Centre de Recherche des Cordeliers, Equipe 11 labellisée Ligue Nationale contre le Cancer, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1138, Paris, France.,Université Pierre et Marie Curie/Paris VI, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Maria Castedo
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Centre de Recherche des Cordeliers, Equipe 11 labellisée Ligue Nationale contre le Cancer, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1138, Paris, France.,Université Pierre et Marie Curie/Paris VI, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Guillaume Meurice
- Bioinformatics Core Facility, Gustave Roussy Cancer Campus, Villejuif, France
| | - Christophe Klein
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1138, Paris, France.,Université Pierre et Marie Curie/Paris VI, Paris, France.,Centre d'Histologie, Imagerie cellulaire et Cytométrie (CHIC), Centre de Recherche des Cordeliers, Paris, France
| | - Lorenzo Galluzzi
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.,Sandra and Edward Meyer Cancer Center, New York, NY, USA
| | - Judith Michels
- Department of Medical Oncology, Gustave Roussy Comprehensive Cancer Campus, Villejuif, France
| | - Guido Kroemer
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Centre de Recherche des Cordeliers, Equipe 11 labellisée Ligue Nationale contre le Cancer, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1138, Paris, France.,Université Pierre et Marie Curie/Paris VI, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.,Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
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17
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Huang Z, Ogasawara D, Seneviratne UI, Cognetta AB, am Ende CW, Nason DM, Lapham K, Litchfield J, Johnson DS, Cravatt BF. Global Portrait of Protein Targets of Metabolites of the Neurotoxic Compound BIA 10-2474. ACS Chem Biol 2019; 14:192-197. [PMID: 30702848 DOI: 10.1021/acschembio.8b01097] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Clinical investigation of the fatty acid amide hydrolase (FAAH) inhibitor BIA 10-2474 resulted in serious adverse neurological events. Structurally unrelated FAAH inhibitors tested in humans have not presented safety concerns, suggesting that BIA 10-2474 has off-target activities. A recent activity-based protein profiling (ABPP) study revealed that BIA 10-2474 and one of its major metabolites inhibit multiple members of the serine hydrolase class to which FAAH belongs. Here, we extend these studies by performing a proteome-wide analysis of covalent targets of BIA 10-2474 metabolites. Using alkynylated probes for click chemistry-ABPP in human cells, we show that des-methylated metabolites of BIA 10-2474 covalently modify the conserved catalytic cysteine in aldehyde dehydrogenases, including ALDH2, which has been implicated in protecting the brain from oxidative stress-related damage. These findings indicate that BIA 10-2474 and its metabolites have the potential to inhibit multiple mechanistically distinct enzyme classes involved in nervous system function.
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Affiliation(s)
- Zhen Huang
- Medicine Design, Chemical Biology, Pfizer Worldwide Research and Development, 1 Portland Street, Cambridge, Massachusetts 02139, United States
| | - Daisuke Ogasawara
- Department of Chemistry, The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Uthpala I. Seneviratne
- Medicine Design, Chemical Biology, Pfizer Worldwide Research and Development, 1 Portland Street, Cambridge, Massachusetts 02139, United States
| | - Armand B. Cognetta
- Department of Chemistry, The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Christopher W. am Ende
- Medicine Design, Medicinal Chemistry, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Deane M. Nason
- Medicine Design, Medicinal Chemistry, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Kimberly Lapham
- Medicine Design, Pharmacokinetics, Dynamics and Metabolism, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - John Litchfield
- Medicine Design, Pharmacokinetics, Dynamics and Metabolism, Pfizer Worldwide Research and Development, 1 Portland Street, Cambridge, Massachusetts 02139, United States
| | - Douglas S. Johnson
- Medicine Design, Chemical Biology, Pfizer Worldwide Research and Development, 1 Portland Street, Cambridge, Massachusetts 02139, United States
| | - Benjamin F. Cravatt
- Department of Chemistry, The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
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18
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Pereira R, Gendron T, Sanghera C, Greenwood HE, Newcombe J, McCormick PN, Sander K, Topf M, Årstad E, Witney TH. Mapping Aldehyde Dehydrogenase 1A1 Activity using an [ 18 F]Substrate-Based Approach. Chemistry 2019; 25:2345-2351. [PMID: 30521138 PMCID: PMC6379060 DOI: 10.1002/chem.201805473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/05/2018] [Indexed: 12/21/2022]
Abstract
Aldehyde dehydrogenases (ALDHs) catalyze the oxidation of aldehydes to carboxylic acids. Elevated ALDH expression in human cancers is linked to metastases and poor overall survival. Despite ALDH being a poor prognostic factor, the non-invasive assessment of ALDH activity in vivo has not been possible due to a lack of sensitive and translational imaging agents. Presented in this report are the synthesis and biological evaluation of ALDH1A1-selective chemical probes composed of an aromatic aldehyde derived from N,N-diethylamino benzaldehyde (DEAB) linked to a fluorinated pyridine ring either via an amide or amine linkage. Of the focused library of compounds evaluated, N-ethyl-6-(fluoro)-N-(4-formylbenzyl)nicotinamide 4 b was found to have excellent affinity and isozyme selectivity for ALDH1A1 in vitro. Following 18 F-fluorination, [18 F]4 b was taken up by colorectal tumor cells and trapped through the conversion to its 18 F-labeled carboxylate product under the action of ALDH. In vivo positron emission tomography revealed high uptake of [18 F]4 b in the lungs and liver, with radioactivity cleared through the urinary tract. Oxidation of [18 F]4 b, however, was observed in vivo, which may limit the tissue penetration of this first-in-class radiotracer.
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Affiliation(s)
- Raul Pereira
- Centre for Advanced Biomedical ImagingUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
- Current address: Department of Imaging Chemistry & BiologyKing's College London, St. Thomas' HospitalLondonSE1 7EHUK
| | - Thibault Gendron
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Chandan Sanghera
- Centre for Advanced Biomedical ImagingUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
- Current address: Department of Imaging Chemistry & BiologyKing's College London, St. Thomas' HospitalLondonSE1 7EHUK
| | - Hannah E. Greenwood
- Centre for Advanced Biomedical ImagingUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
- Current address: Department of Imaging Chemistry & BiologyKing's College London, St. Thomas' HospitalLondonSE1 7EHUK
| | - Joseph Newcombe
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
- Department of Biological Sciences, BirkbeckUniversity of LondonMalet StreetLondonWC1E 7HXUK
| | - Patrick N. McCormick
- Centre for Advanced Biomedical ImagingUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
- Current address: Department of Imaging Chemistry & BiologyKing's College London, St. Thomas' HospitalLondonSE1 7EHUK
| | - Kerstin Sander
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Maya Topf
- Department of Biological Sciences, BirkbeckUniversity of LondonMalet StreetLondonWC1E 7HXUK
| | - Erik Årstad
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Timothy H. Witney
- Centre for Advanced Biomedical ImagingUniversity College LondonPaul O'Gorman Building, 72 Huntley StreetLondonWC1E 6DDUK
- Current address: Department of Imaging Chemistry & BiologyKing's College London, St. Thomas' HospitalLondonSE1 7EHUK
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19
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Abstract
SIGNIFICANCE Proline catabolism refers to the 4-electron oxidation of proline to glutamate catalyzed by the enzymes proline dehydrogenase (PRODH) and l-glutamate γ-semialdehyde dehydrogenase (GSALDH, or ALDH4A1). These enzymes and the intermediate metabolites of the pathway have been implicated in tumor growth and suppression, metastasis, hyperprolinemia metabolic disorders, schizophrenia susceptibility, life span extension, and pathogen virulence and survival. In some bacteria, PRODH and GSALDH are combined into a bifunctional enzyme known as proline utilization A (PutA). PutAs are not only virulence factors in some pathogenic bacteria but also fascinating systems for studying the coordination of metabolic enzymes via substrate channeling. Recent Advances: The past decade has seen an explosion of structural data for proline catabolic enzymes. This review surveys these structures, emphasizing protein folds, substrate recognition, oligomerization, kinetic mechanisms, and substrate channeling in PutA. CRITICAL ISSUES Major unsolved structural targets include eukaryotic PRODH, the complex between monofunctional PRODH and monofunctional GSALDH, and the largest of all PutAs, trifunctional PutA. The structural basis of PutA-membrane association is poorly understood. Fundamental aspects of substrate channeling in PutA remain unknown, such as the identity of the channeled intermediate, how the tunnel system is activated, and the roles of ancillary tunnels. FUTURE DIRECTIONS New approaches are needed to study the molecular and in vivo mechanisms of substrate channeling. With the discovery of the proline cycle driving tumor growth and metastasis, the development of inhibitors of proline metabolic enzymes has emerged as an exciting new direction. Structural biology will be important in these endeavors.
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Affiliation(s)
- John J Tanner
- 1 Department of Biochemistry and University of Missouri-Columbia , Columbia, Missouri.,2 Department of Chemistry, University of Missouri-Columbia , Columbia, Missouri
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20
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Liu LK, Tanner JJ. Crystal Structure of Aldehyde Dehydrogenase 16 Reveals Trans-Hierarchical Structural Similarity and a New Dimer. J Mol Biol 2018; 431:524-541. [PMID: 30529746 DOI: 10.1016/j.jmb.2018.11.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/28/2018] [Accepted: 11/29/2018] [Indexed: 12/24/2022]
Abstract
The aldehyde dehydrogenase (ALDH) superfamily is a vast group of enzymes that catalyze the NAD+-dependent oxidation of aldehydes to carboxylic acids. ALDH16 is perhaps the most enigmatic member of the superfamily, owing to its extra C-terminal domain of unknown function and the absence of the essential catalytic cysteine residue in certain non-bacterial ALDH16 sequences. Herein we report the first production of recombinant ALDH16, the first biochemical characterization of ALDH16, and the first crystal structure of ALDH16. Recombinant expression systems were generated for the bacterial ALDH16 from Loktanella sp. and human ALDH16A1. Four high-resolution crystal structures of Loktanella ALDH16 were determined. Loktanella ALDH16 is found to be a bona fide enzyme, exhibiting NAD+-binding, ALDH activity, and esterase activity. In contrast, human ALDH16A1 apparently lacks measurable aldehyde oxidation activity, suggesting that it is a pseudoenzyme, consistent with the absence of the catalytic Cys in its sequence. The fold of ALDH16 comprises three domains: NAD+-binding, catalytic, and C-terminal. The latter is unique to ALDH16 and features a Rossmann fold connected to a protruding β-flap. The tertiary structural interactions of the C-terminal domain mimic the quaternary structural interactions of the classic ALDH superfamily dimer, a phenomenon we call "trans-hierarchical structural similarity." ALDH16 forms a unique dimer in solution, which mimics the classic ALDH superfamily dimer-of-dimer tetramer. Small-angle X-ray scattering shows that human ALDH16A1 has the same dimeric structure and fold as Loktanella ALDH16. We suggest that the Loktanella ALDH16 structure may be considered to be the archetype of the ALDH16 family.
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Affiliation(s)
- Li-Kai Liu
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - John J Tanner
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA; Department of Chemistry, University of Missouri, Columbia, MO 65211, USA.
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21
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Design, synthesis, and ex vivo evaluation of a selective inhibitor for retinaldehyde dehydrogenase enzymes. Bioorg Med Chem 2018; 26:5766-5779. [PMID: 30409702 DOI: 10.1016/j.bmc.2018.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/03/2018] [Accepted: 10/12/2018] [Indexed: 11/22/2022]
Abstract
The retinaldehyde dehydrogenase (RALDH) enzymes, RALDH1, RALDH2, and RALDH3, catalyze the irreversible oxidation of retinaldehyde to all-trans-retinoic acid (ATRA). Despite the importance of the RALDH enzymes in embryonic development, postnatal growth and differentiation, and in several disease states, there are no commercially available inhibitors that specifically target these isozymes. We report here the development and characterization of a small molecule inhibitor dichloro-all-trans-retinone (DAR) (Summers et al., 2017) that is an irreversible inhibitor of RALDH1, 2, and 3 that effectively inhibits RALDH1, 2, and 3 in the nanomolar range but has no inhibitory activity against mitochondrial ALDH2. These results provide support for the development of DAR as a specific ATRA synthesis inhibitor for a variety of experimental and clinical applications.
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22
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Bazewicz CG, Dinavahi SS, Schell TD, Robertson GP. Aldehyde dehydrogenase in regulatory T-cell development, immunity and cancer. Immunology 2018; 156:47-55. [PMID: 30387499 DOI: 10.1111/imm.13016] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/10/2018] [Accepted: 10/26/2018] [Indexed: 12/14/2022] Open
Abstract
The role of aldehyde dehydrogenase (ALDH) in carcinogenesis and resistance to cancer therapies is well known. Mounting evidence also suggests a potentially important role for ALDH in the induction and function of regulatory T (Treg) cells. Treg cells are important cells of the immune system involved in promoting immune tolerance and preventing aberrant immune responses to beneficial or non-harmful antigens. However, Treg cells also impair tumor immunity, leading to the progression of various carcinomas. ALDH expression and the subsequent production of retinoic acid by numerous cells, including dendritic cells, macrophages, eosinophils and epithelial cells, seems important in Treg induction and function in multiple organ systems. This is particularly evident in the gastrointestinal tract, pulmonary tract and skin, which are exposed to a myriad of environmental antigens and represent interfaces between the human body and the outside world. Expression of ALDH in Treg cells themselves may also be involved in the proliferation of these cells and resistance to certain cytotoxic therapies. Hence, inhibition of ALDH expression may be useful to treat cancer. Besides the direct effect of ALDH inhibition on carcinogenesis and resistance to cancer therapies, inhibition of ALDH could potentially augment the immune response to tumor antigens by inhibiting Treg induction, function and ability to promote immune tolerance to tumor cells in multiple cancer types.
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Affiliation(s)
- Christopher G Bazewicz
- College of Medicine, The Pennsylvania State University Medical Center, Hershey, PA, USA.,The Penn State Melanoma and Skin Cancer Center, The Pennsylvania State University Medical Center, Hershey, PA, USA
| | - Saketh S Dinavahi
- The Penn State Melanoma and Skin Cancer Center, The Pennsylvania State University Medical Center, Hershey, PA, USA.,Department of Pharmacology, The Pennsylvania State University Medical Center, Hershey, PA, USA
| | - Todd D Schell
- Department of Microbiology and Immunology, The Pennsylvania State University Medical Center, Hershey, PA, USA
| | - Gavin P Robertson
- The Penn State Melanoma and Skin Cancer Center, The Pennsylvania State University Medical Center, Hershey, PA, USA.,Department of Pharmacology, The Pennsylvania State University Medical Center, Hershey, PA, USA.,Department of Pathology, The Pennsylvania State University Medical Center, Hershey, PA, USA.,Department of Dermatology, The Pennsylvania State University Medical Center, Hershey, PA, USA.,Department of Surgery, The Pennsylvania State University Medical Center, Hershey, PA, USA.,Penn State Melanoma Therapeutics Program, The Pennsylvania State University Medical Center, Hershey, PA, USA.,Foreman Foundation for Melanoma Research, The Pennsylvania State University Medical Center, Hershey, PA, USA
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23
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Korasick DA, White TA, Chakravarthy S, Tanner JJ. NAD + promotes assembly of the active tetramer of aldehyde dehydrogenase 7A1. FEBS Lett 2018; 592:3229-3238. [PMID: 30184263 PMCID: PMC6188814 DOI: 10.1002/1873-3468.13238] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 02/04/2023]
Abstract
Nicotinamide adenine dinucleotide (NAD) is the redox cofactor of many enzymes, including the vast aldehyde dehydrogenase (ALDH) superfamily. Although the function of NAD(H) in hydride transfer is established, its influence on protein structure is less understood. Herein, we show that NAD+ -binding promotes assembly of the ALDH7A1 tetramer. Multiangle light scattering, small-angle X-ray scattering, and sedimentation velocity all show a pronounced shift of the dimer-tetramer equilibrium toward the tetramer when NAD+ is present. Furthermore, electron microscopy shows that cofactor binding enhances tetramer formation even at the low enzyme concentration used in activity assays, suggesting the tetramer is the active species. Altogether, our results suggest that the catalytically active oligomer of ALDH7A1 is assembled on demand in response to cofactor availability.
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Affiliation(s)
- David A. Korasick
- Department of Biochemistry, University of Missouri, Columbia, Missouri
| | - Tommi A. White
- Department of Biochemistry, University of Missouri, Columbia, Missouri
- Electron Microscopy Core Facility, University of Missouri, Columbia, Missouri
| | - Srinivas Chakravarthy
- Biophysics Collaborative Access Team, Argonne National Laboratory, Argonne, Illinois
| | - John J. Tanner
- Department of Biochemistry, University of Missouri, Columbia, Missouri
- Department of Chemistry, University of Missouri, Columbia, Missouri
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24
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Anorma C, Hedhli J, Bearrood TE, Pino NW, Gardner SH, Inaba H, Zhang P, Li Y, Feng D, Dibrell SE, Kilian KA, Dobrucki LW, Fan TM, Chan J. Surveillance of Cancer Stem Cell Plasticity Using an Isoform-Selective Fluorescent Probe for Aldehyde Dehydrogenase 1A1. ACS CENTRAL SCIENCE 2018; 4:1045-1055. [PMID: 30159402 PMCID: PMC6107868 DOI: 10.1021/acscentsci.8b00313] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Indexed: 05/19/2023]
Abstract
Cancer stem cells (CSCs) are progenitor cells that contribute to treatment-resistant phenotypes during relapse. CSCs exist in specific tissue microenvironments that cell cultures and more complex models cannot mimic. Therefore, the development of new approaches that can detect CSCs and report on specific properties (e.g., stem cell plasticity) in their native environment have profound implications for studying CSC biology. Herein, we present AlDeSense, a turn-on fluorescent probe for aldehyde dehydrogenase 1A1 (ALDH1A1) and Ctrl-AlDeSense, a matching nonresponsive reagent. Although ALDH1A1 contributes to the detoxification of reactive aldehydes, it is also associated with stemness and is highly elevated in CSCs. AlDeSense exhibits a 20-fold fluorescent enhancement when treated with ALDH1A1. Moreover, we established that AlDeSense is selective against a panel of common ALDH isoforms and exhibits exquisite chemostability against a collection of biologically relevant species. Through the application of surface marker antibody staining, tumorsphere assays, and assessment of tumorigenicity, we demonstrate that cells exhibiting high AlDeSense signal intensity have properties of CSCs. Using these probes in tandem, we have identified CSCs at the cellular level via flow cytometry and confocal imaging, as well as monitored their states in animal models.
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Affiliation(s)
- Chelsea Anorma
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Jamila Hedhli
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1304 W. Springfield Avenue, Urbana, Illinois 61801, United
States
- Beckman Institute
for Advanced Science and Technology, University
of Illinois at Urbana−Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Thomas E. Bearrood
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Nicholas W. Pino
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Sarah H. Gardner
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Hiroshi Inaba
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Pamela Zhang
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Yanfen Li
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1304 W. Springfield Avenue, Urbana, Illinois 61801, United
States
| | - Daven Feng
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Sara E. Dibrell
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Kristopher A. Kilian
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1304 W. Springfield Avenue, Urbana, Illinois 61801, United
States
- School
of Materials Science and Engineering, School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Lawrence W. Dobrucki
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1304 W. Springfield Avenue, Urbana, Illinois 61801, United
States
- Beckman Institute
for Advanced Science and Technology, University
of Illinois at Urbana−Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Timothy M. Fan
- Department
of Veterinary Clinical Medicine, University
of Illinois at Urbana−Champaign, 2001 S Lincoln Avenue, Urbana, Illinois 61801, United States
| | - Jefferson Chan
- Department of Chemistry and Department of Biochemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
- Beckman Institute
for Advanced Science and Technology, University
of Illinois at Urbana−Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, United States
- E-mail:
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25
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Chen Y, Zhu JY, Ho Hong K, Mikles DC, Georg GI, Goldstein AS, Amory JK, Schönbrunn E. Structural Basis of ALDH1A2 Inhibition by Irreversible and Reversible Small Molecule Inhibitors. ACS Chem Biol 2018; 13:582-590. [PMID: 29240402 PMCID: PMC6089219 DOI: 10.1021/acschembio.7b00685] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Enzymes of the ALDH1A subfamily of aldehyde dehydrogenases are crucial in regulating retinoic acid (RA) signaling and have received attention as potential drug targets. ALDH1A2 is the primary RA-synthesizing enzyme in mammalian spermatogenesis and is therefore considered a viable drug target for male contraceptive development. However, only a small number of ALDH1A2 inhibitors have been reported, and information on the structure of ALDH1A2 was limited to the NAD-liganded enzyme void of substrate or inhibitors. Herein, we describe the mechanism of action of structurally unrelated reversible and irreversible inhibitors of human ALDH1A2 using direct binding studies and X-ray crystallography. All inhibitors bind to the active sites of tetrameric ALDH1A2. Compound WIN18,446 covalently reacts with the side chain of the catalytic residue Cys320, resulting in a chiral adduct in ( R) configuration. The covalent adduct directly affects the neighboring NAD molecule, which assumes a contracted conformation suboptimal for the dehydrogenase reaction. The reversible inhibitors interact predominantly through direct hydrogen bonding interactions with residues in the vicinity of Cys320 without affecting NAD. Upon interaction with inhibitors, a large flexible loop assumes regular structure, thereby shielding the active site from solvent. The precise knowledge of the binding modes provides a new framework for the rational design of novel inhibitors of ALDH1A2 with improved potency and selectivity profiles.
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Affiliation(s)
- Yan Chen
- Drug Discovery Department, Moffitt Cancer Center, Tampa, Florida 33612, United States
| | - Jin-Yi Zhu
- Drug Discovery Department, Moffitt Cancer Center, Tampa, Florida 33612, United States
- Present Address Dart Neuroscience, San Diego, CA 92131, USA
| | - Kwon Ho Hong
- Department of Medicinal Chemistry and Institute for Therapeutics Discovery and Development, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55414, United States
| | - David C. Mikles
- Drug Discovery Department, Moffitt Cancer Center, Tampa, Florida 33612, United States
| | - Gunda I. Georg
- Department of Medicinal Chemistry and Institute for Therapeutics Discovery and Development, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55414, United States
| | | | - John K Amory
- Department of Medicine, University of Washington, Seattle, Washington 98195, United States
| | - Ernst Schönbrunn
- Drug Discovery Department, Moffitt Cancer Center, Tampa, Florida 33612, United States
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26
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Abdul W, Aliyu SR, Lin L, Sekete M, Chen X, Otieno FJ, Yang T, Lin Y, Norvienyeku J, Wang Z. Family-Four Aldehyde Dehydrogenases Play an Indispensable Role in the Pathogenesis of Magnaporthe oryzae. FRONTIERS IN PLANT SCIENCE 2018; 9:980. [PMID: 30135691 PMCID: PMC6092734 DOI: 10.3389/fpls.2018.00980] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 06/15/2018] [Indexed: 05/22/2023]
Abstract
The oxidative degradation of lipids through lipid peroxidation processes results in the generation of free fatty acid radicals. These free radicals including reactive oxygen species (ROS) serve as a substrate for generating reactive aldehydes. The accumulation of free fatty acid radicals, ROS, and reactive aldehydes in cell compartments beyond physiological threshold levels tends to exert a damaging effect on proximal membranes and distal tissues. Living organisms deploy a wide array of efficient enzymes including superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and aldehyde dehydrogenases (ALDHs) for scavenging reactive molecules and intermediates produced from membrane lipid peroxidation events. Although the contributions of SOD, CAT, and POD to the pathogenesis of microbial plant pathogens are well known, the influence of ALDH genes on the morphological and infectious development of plant pathogenic microbes is not well understood. In this study, we deployed RNA interference (RNAi) techniques and successfully silenced two putative family-four aldehyde dehydrogenase genes potassium-activated aldehyde dehydrogenase (MoKDCDH) and delta-1-pyrrorine-5-carboxylate dehydrogenase (MoP5CDH) in the rice blast pathogen Magnaporthe oryzae. The results obtained from the phenotypic analysis of individual knock-down strains showed that the RNAi-mediated inactivation of MoKDCDH and MoP5CDH triggered a significant reduction in conidiogenesis and vegetative growth of ΔMokdcdh and ΔMop5cdh strains. We further observed that downregulating the expression of MoKDCDH and MoP5CDH severely compromised the pathogenesis of the rice blast fungus. Also, the disruption of MoKDCDH and MoP5CDH M. oryzae undermined membrane integrity and rendered the mutant strains highly sensitive to membrane stress inducing osmolytes. However, the MoKDCDH and MoP5CDH knock-down strains generated in this study displayed unaltered cell wall integrity and thus suggested that family-four ALDHs play a dispensable role in enforcing cell wall-directed stress tolerance in M. oryzae. From these results, we deduced that family-four ALDHs play a conserved role in fostering membrane integrity in M. oryzae possibly by scavenging reactive aldehydes, fatty acid radicals, and other alcohol derivatives. The observation that downregulating the expression activities of MoKDCDH had a lethal effect on potential mutants further emphasized the need for comprehensive and holistic evaluation of the numerous ALDHs amassed by the rice blast fungus for their possible engagement as suitable targets as antiblast agents.
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Affiliation(s)
- Waheed Abdul
- Fujian University Key Laboratory for Functional Genomics of Plant Fungal Pathogens, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian and Taiwan Joint Center for Ecological Control of Crop Pests, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Sami R. Aliyu
- Fujian and Taiwan Joint Center for Ecological Control of Crop Pests, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Lili Lin
- Fujian and Taiwan Joint Center for Ecological Control of Crop Pests, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Malota Sekete
- Department of Crop Science, Faculty of Agriculture, National University of Lesotho, Lesotho, Southern Africa
| | - Xiaomin Chen
- Fujian and Taiwan Joint Center for Ecological Control of Crop Pests, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Frankline J. Otieno
- Fujian University Key Laboratory for Functional Genomics of Plant Fungal Pathogens, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Tao Yang
- Fujian and Taiwan Joint Center for Ecological Control of Crop Pests, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yahong Lin
- Fujian University Key Laboratory for Functional Genomics of Plant Fungal Pathogens, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Justice Norvienyeku
- Fujian University Key Laboratory for Functional Genomics of Plant Fungal Pathogens, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian and Taiwan Joint Center for Ecological Control of Crop Pests, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- *Correspondence: Justice Norvienyeku, Zonghua Wang,
| | - Zonghua Wang
- Fujian University Key Laboratory for Functional Genomics of Plant Fungal Pathogens, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian and Taiwan Joint Center for Ecological Control of Crop Pests, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Institute of Oceanography, Minjiang University, Fuzhou, China
- *Correspondence: Justice Norvienyeku, Zonghua Wang,
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27
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Korasick DA, Wyatt JW, Luo M, Laciak AR, Ruddraraju K, Gates KS, Henzl MT, Tanner JJ. Importance of the C-Terminus of Aldehyde Dehydrogenase 7A1 for Oligomerization and Catalytic Activity. Biochemistry 2017; 56:5910-5919. [PMID: 29045138 DOI: 10.1021/acs.biochem.7b00803] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Aldehyde dehydrogenase 7A1 (ALDH7A1) catalyzes the terminal step of lysine catabolism, the NAD+-dependent oxidation of α-aminoadipate semialdehyde to α-aminoadipate. Structures of ALDH7A1 reveal the C-terminus is a gate that opens and closes in response to the binding of α-aminoadipate. In the closed state, the C-terminus of one protomer stabilizes the active site of the neighboring protomer in the dimer-of-dimers tetramer. Specifically, Ala505 and Gln506 interact with the conserved aldehyde anchor loop structure in the closed state. The apparent involvement of these residues in catalysis is significant because they are replaced by Pro505 and Lys506 in a genetic deletion (c.1512delG) that causes pyridoxine-dependent epilepsy. Inspired by the c.1512delG defect, we generated variant proteins harboring either A505P, Q506K, or both mutations (A505P/Q506K). Additionally, a C-terminal truncation mutant lacking the last eight residues was prepared. The catalytic behaviors of the variants were examined in steady-state kinetic assays, and their quaternary structures were examined by analytical ultracentrifugation. The mutant enzymes exhibit a profound kinetic defect characterized by markedly elevated Michaelis constants for α-aminoadipate semialdehyde, suggesting that the mutated residues are important for substrate binding. Furthermore, analyses of the in-solution oligomeric states revealed that the mutant enzymes are defective in tetramer formation. Overall, these results suggest that the C-terminus of ALDH7A1 is crucial for the maintenance of both the oligomeric state and the catalytic activity.
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Affiliation(s)
- David A Korasick
- Department of Biochemistry, University of Missouri , Columbia, Missouri 65211, United States
| | - Jesse W Wyatt
- Department of Chemistry, University of Missouri , Columbia, Missouri 65211, United States
| | - Min Luo
- Department of Chemistry, University of Missouri , Columbia, Missouri 65211, United States
| | - Adrian R Laciak
- Department of Chemistry, University of Missouri , Columbia, Missouri 65211, United States
| | - Kasi Ruddraraju
- Department of Chemistry, University of Missouri , Columbia, Missouri 65211, United States
| | - Kent S Gates
- Department of Biochemistry, University of Missouri , Columbia, Missouri 65211, United States.,Department of Chemistry, University of Missouri , Columbia, Missouri 65211, United States
| | - Michael T Henzl
- Department of Biochemistry, University of Missouri , Columbia, Missouri 65211, United States
| | - John J Tanner
- Department of Biochemistry, University of Missouri , Columbia, Missouri 65211, United States.,Department of Chemistry, University of Missouri , Columbia, Missouri 65211, United States
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28
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Liu LK, Becker DF, Tanner JJ. Structure, function, and mechanism of proline utilization A (PutA). Arch Biochem Biophys 2017; 632:142-157. [PMID: 28712849 DOI: 10.1016/j.abb.2017.07.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/11/2017] [Accepted: 07/12/2017] [Indexed: 01/13/2023]
Abstract
Proline has important roles in multiple biological processes such as cellular bioenergetics, cell growth, oxidative and osmotic stress response, protein folding and stability, and redox signaling. The proline catabolic pathway, which forms glutamate, enables organisms to utilize proline as a carbon, nitrogen, and energy source. FAD-dependent proline dehydrogenase (PRODH) and NAD+-dependent glutamate semialdehyde dehydrogenase (GSALDH) convert proline to glutamate in two sequential oxidative steps. Depletion of PRODH and GSALDH in humans leads to hyperprolinemia, which is associated with mental disorders such as schizophrenia. Also, some pathogens require proline catabolism for virulence. A unique aspect of proline catabolism is the multifunctional proline utilization A (PutA) enzyme found in Gram-negative bacteria. PutA is a large (>1000 residues) bifunctional enzyme that combines PRODH and GSALDH activities into one polypeptide chain. In addition, some PutAs function as a DNA-binding transcriptional repressor of proline utilization genes. This review describes several attributes of PutA that make it a remarkable flavoenzyme: (1) diversity of oligomeric state and quaternary structure; (2) substrate channeling and enzyme hysteresis; (3) DNA-binding activity and transcriptional repressor function; and (4) flavin redox dependent changes in subcellular location and function in response to proline (functional switching).
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Affiliation(s)
- Li-Kai Liu
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States
| | - Donald F Becker
- Department of Biochemistry and Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, 68588-0664, United States.
| | - John J Tanner
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, United States; Department of Chemistry, University of Missouri, Columbia, MO, 65211, United States.
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29
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Buchman CD, Hurley TD. Inhibition of the Aldehyde Dehydrogenase 1/2 Family by Psoralen and Coumarin Derivatives. J Med Chem 2017; 60:2439-2455. [PMID: 28219011 PMCID: PMC5765548 DOI: 10.1021/acs.jmedchem.6b01825] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Aldehyde dehydrogenase 2 (ALDH2), one of 19 ALDH superfamily members, catalyzes the NAD+-dependent oxidation of aldehydes to their respective carboxylic acids. In this study, we further characterized the inhibition of four psoralen and coumarin derivatives toward ALDH2 and compared them to the ALDH2 inhibitor daidzin for selectivity against five ALDH1/2 isoenzymes. Compound 2 (Ki = 19 nM) binds within the aldehyde-binding site of the free enzyme species of ALDH2. Thirty-three structural analogs were examined to develop a stronger SAR profile. Seven compounds maintained or improved upon the selectivity toward one of the five ALDH1/2 isoenzymes, including compound 36, a selective inhibitor for ALDH2 (Ki = 2.4 μM), and compound 32, which was 10-fold selective for ALDH1A1 (Ki = 1.2 μM) versus ALDH1A2. Further medicinal chemistry on the compounds' basic scaffold could enhance the potency and selectivity for ALDH1A1 or ALDH2 and generate chemical probes to examine the unique and overlapping functions of the ALDH1/2 isoenzymes.
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30
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Korasick DA, Tanner JJ, Henzl MT. Impact of disease-Linked mutations targeting the oligomerization interfaces of aldehyde dehydrogenase 7A1. Chem Biol Interact 2017; 276:31-39. [PMID: 28087462 DOI: 10.1016/j.cbi.2017.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 12/05/2016] [Accepted: 01/09/2017] [Indexed: 11/24/2022]
Abstract
Aldehyde dehydrogenase 7A1 (ALDH7A1) is involved in lysine catabolism, catalyzing the oxidation of α-aminoadipate semialdehyde to α-aminoadipate. Certain mutations in the ALDH7A1 gene, which are presumed to reduce catalytic activity, cause an autosomal recessive seizure disorder known as pyridoxine-dependent epilepsy (PDE). Although the genetic association between ALDH7A1 and PDE is well established, little is known about the impact of PDE-mutations on the structure and catalytic function of the enzyme. Herein we report the first study of the molecular consequences of PDE mutations using purified ALDH7A1 variants. Eight variants, with mutations in the oligomer interfaces, were expressed in Escherichia coli: P78L, G83E, A129P, G137V, G138V, A149E, G255D, and G263E. All but P78L and G83E were soluble and could be purified. All six soluble mutants were catalytically inactive. The impact of the mutations on oligomerization was assessed by analytical ultracentrifugation. Wild-type ALDH7A1 is shown to exist in a dimer-tetramer equilibrium with a dissociation constant of 16 μM. In contrast to the wild-type enzyme, the variants reside in monomer-dimer equilibria and are apparently incapable of forming a tetrameric species, even at high enzyme concentration. The available evidence suggests that they are misfolded assemblies lacking the three-dimensional structure required for catalysis.
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Affiliation(s)
- David A Korasick
- Department of Biochemistry, University of Missouri-Columbia, Columbia, MO 65211, USA
| | - John J Tanner
- Department of Biochemistry, University of Missouri-Columbia, Columbia, MO 65211, USA; Department of Chemistry, University of Missouri-Columbia, Columbia, MO 65211, USA.
| | - Michael T Henzl
- Department of Biochemistry, University of Missouri-Columbia, Columbia, MO 65211, USA.
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31
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Niu H, Hadwiger G, Fujiwara H, Welch JS. Pathways of retinoid synthesis in mouse macrophages and bone marrow cells. J Leukoc Biol 2016; 99:797-810. [PMID: 26768478 DOI: 10.1189/jlb.2hi0415-146rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 12/18/2015] [Indexed: 12/31/2022] Open
Abstract
In vivo pathways of natural retinoid metabolism and elimination have not been well characterized in primary myeloid cells, even though retinoids and retinoid receptors have been strongly implicated in regulating myeloid maturation. With the use of a upstream activation sequence-GFP reporter transgene and retrovirally expressed Gal4-retinoic acid receptor α in primary mouse bone marrow cells, we identified 2 distinct enzymatic pathways used by mouse myeloid cells ex vivo to synthesize retinoic acid receptor α ligands from free vitamin A metabolites (retinyl acetate, retinol, and retinal). Bulk Kit(+) bone marrow progenitor cells use diethylaminobenzaldehyde-sensitive enzymes, whereas bone marrow-derived macrophages use diethylaminobenzaldehyde-insensitive enzymes to synthesize natural retinoic acid receptor α-activating retinoids (all-trans retinoic acid). Bone marrow-derived macrophages do not express the diethylaminobenzaldehyde-sensitive enzymes Aldh1a1, Aldh1a2, or Aldh1a3 but instead, express Aldh3b1, which we found is capable of diethylaminobenzaldehyde-insensitive synthesis of all trans-retinoic acid. However, under steady-state and stimulated conditions in vivo, diverse bone marrow cells and peritoneal macrophages showed no evidence of intracellular retinoic acid receptor α-activating retinoids, despite expression of these enzymes and a vitamin A-sufficient diet, suggesting that the enzymatic conversion of retinal is not the rate-limiting step in the synthesis of intracellular retinoic acid receptor α-activating retinoids in myeloid bone marrow cells and that retinoic acid receptor α remains in an unliganded configuration during adult hematopoiesis.
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Affiliation(s)
- Haixia Niu
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri, USA and
| | - Gayla Hadwiger
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri, USA and
| | - Hideji Fujiwara
- Diabetic Cardiovascular Disease Center, Washington University School of Medicine, St. Louis, Missouri, USA
| | - John S Welch
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri, USA and
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32
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Adeniyi AA, Muthusamy R, Soliman MES. New drug design with covalent modifiers. Expert Opin Drug Discov 2016; 11:79-90. [DOI: 10.1517/17460441.2016.1115478] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Adebayo A Adeniyi
- School of Health Sciences, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Ramesh Muthusamy
- School of Health Sciences, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Mahmoud ES Soliman
- School of Health Sciences, University of KwaZulu-Natal, Durban 4001, South Africa
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Tanner JJ. SAXS fingerprints of aldehyde dehydrogenase oligomers. Data Brief 2015; 5:745-51. [PMID: 26693506 PMCID: PMC4659792 DOI: 10.1016/j.dib.2015.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/10/2015] [Accepted: 10/15/2015] [Indexed: 11/13/2022] Open
Abstract
Enzymes of the aldehyde dehydrogenase (ALDH) superfamily catalyze the nicotinamide adenine dinucleotide-dependent oxidation of aldehydes to carboxylic acids. ALDHs are important in detoxification of aldehydes, amino acid metabolism, embryogenesis and development, neurotransmission, oxidative stress, and cancer. Mutations in genes encoding ALDHs cause metabolic disorders, including alcohol flush reaction (ALDH2), Sjögren–Larsson syndrome (ALDH3A2), hyperprolinemia type II (ALDH4A1), γ-hydroxybutyric aciduria (ALDH5A1), methylmalonic aciduria (ALDH6A1), pyridoxine dependent epilepsy (ALDH7A1), and hyperammonemia (ALDH18A1). We previously reported crystal structures and small-angle X-ray scattering (SAXS) analyses of ALDHs exhibiting dimeric, tetrameric, and hexameric oligomeric states (Luo et al., Biochemistry 54 (2015) 5513–5522; Luo et al., J. Mol. Biol. 425 (2013) 3106–3120). Herein I provide the SAXS curves, radii of gyration, and distance distribution functions for the three types of ALDH oligomer. The SAXS curves and associated analysis provide diagnostic fingerprints that allow rapid identification of the type of ALDH oligomer that is present in solution. The data sets provided here serve as a benchmark for characterizing oligomerization of ALDHs.
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Affiliation(s)
- John J Tanner
- Departments of Biochemistry and Chemistry, University of Missouri-Columbia, Columbia, MO 65211, United States
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Abstract
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Aldehyde dehydrogenase 7A1 (ALDH7A1)
is part of lysine catabolism
and catalyzes the NAD+-dependent oxidation of α-aminoadipate
semialdehyde to α-aminoadipate. Herein, we describe a structural
study of human ALDH7A1 focused on substrate recognition. Five crystal
structures and small-angle X-ray scattering data are reported, including
the first crystal structure of any ALDH7 family member complexed with
α-aminoadipate. The product binds with the ε-carboxylate
in the oxyanion hole, the aliphatic chain packed into an aromatic
box, and the distal end of the product anchored by electrostatic interactions
with five conserved residues. This binding mode resembles that of
glutamate bound to the proline catabolic enzyme ALDH4A1. Analysis
of ALDH7A1 and ALDH4A1 structures suggests key interactions that underlie
substrate discrimination. Structures of apo ALDH7A1 reveal dramatic
conformational differences from the product complex. Product binding
is associated with a 16 Å movement of the C-terminus into the
active site, which stabilizes the active conformation of the aldehyde
substrate anchor loop. The fact that the C-terminus is part of the
active site was hitherto unknown. Interestingly, the C-terminus and
aldehyde anchor loop are disordered in a new tetragonal crystal form
of the apoenzyme, implying that these parts of the enzyme are highly
flexible. Our results suggest that the active site of ALDH7A1 is disassembled
when the aldehyde site is vacant, and the C-terminus is a mobile element
that forms quaternary structural interactions that aid aldehyde binding.
These results are relevant to the c.1512delG genetic deletion associated
with pyridoxine-dependent epilepsy, which alters the C-terminus of
ALDH7A1.
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Affiliation(s)
- Min Luo
- Department of Chemistry, University of Missouri-Columbia , Columbia, Missouri 65211, United States
| | - John J Tanner
- Department of Chemistry, University of Missouri-Columbia , Columbia, Missouri 65211, United States.,Department of Biochemistry, University of Missouri-Columbia , Columbia, Missouri 65211, United States
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