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Bardaweel SK, Al-salamat H, Hajjo R, Sabbah D, Almutairi S. Unveiling the Intricacies of Monoamine Oxidase-A (MAO-A) Inhibition in Colorectal Cancer: Computational Systems Biology, Expression Patterns, and the Anticancer Therapeutic Potential. ACS OMEGA 2024; 9:35703-35717. [PMID: 39184489 PMCID: PMC11339988 DOI: 10.1021/acsomega.4c04100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/24/2024] [Accepted: 07/26/2024] [Indexed: 08/27/2024]
Abstract
Colorectal cancer (CRC) remains a significant health burden globally, necessitating a deeper understanding of its molecular intricacies for effective therapeutic interventions. Elevated monoamine oxidase-A (MAO-A) expression has been consistently observed in CRC tissues, correlating with advanced disease stages and a poorer prognosis. This research explores the systems biology effects of MAO-A inhibition with small molecule inhibitor clorgyline regarding CRC. The applied systems biology approach starts with a chemocentric informatics approach to derive high-confidence hypotheses regarding the antiproliferative effects of MAO-A inhibitors and ends with experimental validation. Our computational results emphasized the anticancer effects of MAO-A inhibition and the chemogenomics similarities between clorgyline and structurally diverse groups of apoptosis inducers in addition to highlighting apoptotic, DNA-damage, and microRNAs in cancer pathways. Experimental validation results revealed that MAO inhibition results in antiproliferative antimigratory activities in addition to synergistic effects with doxorubicin. Moreover, the results demonstrated a putative role of MAO-A inhibition in commencing CRC cellular death by potentially mediating the induction of apoptosis.
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Affiliation(s)
- Sanaa K. Bardaweel
- Department
of Pharmaceutical Sciences, School of Pharmacy, The University of Jordan, Amman - 11942, Jordan
| | - Husam Al-salamat
- Department
of Pharmaceutical Sciences, School of Pharmacy, The University of Jordan, Amman - 11942, Jordan
| | - Rima Hajjo
- Department
of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah
University of Jordan, P.O. Box 130, Amman - 11733, Jordan
- Laboratory
for Molecular Modeling, Division of Chemical Biology and Medicinal
Chemistry, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Board
Member, Jordan CDC, Amman - 11183, Jordan
| | - Dima Sabbah
- Department
of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah
University of Jordan, P.O. Box 130, Amman - 11733, Jordan
| | - Shriefa Almutairi
- Department
of Pharmaceutical Sciences, School of Pharmacy, The University of Jordan, Amman - 11942, Jordan
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2
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Chen L, Huang S, Wu X, He W, Song M. Serotonin signalling in cancer: Emerging mechanisms and therapeutic opportunities. Clin Transl Med 2024; 14:e1750. [PMID: 38943041 PMCID: PMC11213692 DOI: 10.1002/ctm2.1750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/09/2024] [Accepted: 06/13/2024] [Indexed: 06/30/2024] Open
Abstract
BACKGROUND Serotonin (5-hydroxytryptamine) is a multifunctional bioamine serving as a neurotransmitter, peripheral hormone and mitogen in the vertebrate system. It has pleiotropic activities in central nervous system and gastrointestinal function via an orchestrated action of serotonergic elements, particularly serotonin receptor-mediated signalling cascades. The mitogenic properties of serotonin have garnered recognition for years and have been exploited for repurposing serotonergic-targeted drugs in cancer therapy. However, emerging conflicting findings necessitate a more comprehensive elucidation of serotonin's role in cancer pathogenesis. MAIN BODY AND CONCLUSION Here, we provide an overview of the biosynthesis, metabolism and action modes of serotonin. We summarise our current knowledge regarding the effects of the peripheral serotonergic system on tumourigenesis, with a specific emphasis on its immunomodulatory activities in human cancers. We also discuss the dual roles of serotonin in tumour pathogenesis and elucidate the potential of serotonergic drugs, some of which display favourable safety profiles and impressive efficacy in clinical trials, as a promising avenue in cancer treatment. KEY POINTS Primary synthesis and metabolic routes of peripheral 5-hydroxytryptamine in the gastrointestinal tract. Advanced research has established a strong association between the serotonergic components and carcinogenic mechanisms. The interplay between serotonergic signalling and the immune system within the tumour microenvironment orchestrates antitumour immune responses. Serotonergic-targeted drugs offer valuable clinical options for cancer therapy.
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Affiliation(s)
- Lulu Chen
- Department of Gastrointestinal SurgeryThe First Affiliated Hospital of Sun Yat‐Sen UniversitySun Yat‐Sen UniversityGuangzhouChina
- Institute of Precision MedicineThe First Affiliated Hospital of Sun Yat‐Sen UniversitySun Yat‐Sen UniversityGuangzhouChina
| | - Shuting Huang
- School of Public HealthSun Yat‐Sen UniversityGuangzhouChina
| | - Xiaoxue Wu
- Department of Gastrointestinal SurgeryThe First Affiliated Hospital of Sun Yat‐Sen UniversitySun Yat‐Sen UniversityGuangzhouChina
| | - Weiling He
- Department of Gastrointestinal SurgeryThe First Affiliated Hospital of Sun Yat‐Sen UniversitySun Yat‐Sen UniversityGuangzhouChina
- Department of Gastrointestinal SurgeryXiang'an Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenChina
| | - Mei Song
- Institute of Precision MedicineThe First Affiliated Hospital of Sun Yat‐Sen UniversitySun Yat‐Sen UniversityGuangzhouChina
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3
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Shi Q, Malik H, Crawford RM, Streeter J, Wang J, Huo R, Shih JC, Chen B, Hall D, Abel ED, Song LS, Anderson EJ. Cardiac monoamine oxidase-A inhibition protects against catecholamine-induced ventricular arrhythmias via enhanced diastolic calcium control. Cardiovasc Res 2024; 120:596-611. [PMID: 38198753 PMCID: PMC11074799 DOI: 10.1093/cvr/cvae012] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 11/01/2023] [Accepted: 11/22/2023] [Indexed: 01/12/2024] Open
Abstract
AIMS A mechanistic link between depression and risk of arrhythmias could be attributed to altered catecholamine metabolism in the heart. Monoamine oxidase-A (MAO-A), a key enzyme involved in catecholamine metabolism and longstanding antidepressant target, is highly expressed in the myocardium. The present study aimed to elucidate the functional significance and underlying mechanisms of cardiac MAO-A in arrhythmogenesis. METHODS AND RESULTS Analysis of the TriNetX database revealed that depressed patients treated with MAO inhibitors had a lower risk of arrhythmias compared with those treated with selective serotonin reuptake inhibitors. This effect was phenocopied in mice with cardiomyocyte-specific MAO-A deficiency (cMAO-Adef), which showed a significant reduction in both incidence and duration of catecholamine stress-induced ventricular tachycardia compared with wild-type mice. Additionally, cMAO-Adef cardiomyocytes exhibited altered Ca2+ handling under catecholamine stimulation, with increased diastolic Ca2+ reuptake, reduced diastolic Ca2+ leak, and diminished systolic Ca2+ release. Mechanistically, cMAO-Adef hearts had reduced catecholamine levels under sympathetic stress, along with reduced levels of reactive oxygen species and protein carbonylation, leading to decreased oxidation of Type II PKA and CaMKII. These changes potentiated phospholamban (PLB) phosphorylation, thereby enhancing diastolic Ca2+ reuptake, while reducing ryanodine receptor 2 (RyR2) phosphorylation to decrease diastolic Ca2+ leak. Consequently, cMAO-Adef hearts exhibited lower diastolic Ca2+ levels and fewer arrhythmogenic Ca2+ waves during sympathetic overstimulation. CONCLUSION Cardiac MAO-A inhibition exerts an anti-arrhythmic effect by enhancing diastolic Ca2+ handling under catecholamine stress.
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MESH Headings
- Animals
- Female
- Humans
- Male
- Mice
- Calcium/metabolism
- Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism
- Catecholamines/metabolism
- Cells, Cultured
- Cyclic AMP-Dependent Protein Kinases/metabolism
- Diastole/drug effects
- Disease Models, Animal
- Heart Rate/drug effects
- Mice, Inbred C57BL
- Mice, Knockout
- Monoamine Oxidase/metabolism
- Monoamine Oxidase Inhibitors/pharmacology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Phosphorylation
- Reactive Oxygen Species/metabolism
- Ryanodine Receptor Calcium Release Channel/metabolism
- Tachycardia, Ventricular/enzymology
- Tachycardia, Ventricular/physiopathology
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Affiliation(s)
- Qian Shi
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 285 Newton Rd, Iowa City, IA 52242, USA
| | - Hamza Malik
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 285 Newton Rd, Iowa City, IA 52242, USA
| | - Rachel M Crawford
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, 180 S Grand Ave., Iowa City, IA 52242, USA
| | - Jennifer Streeter
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 285 Newton Rd, Iowa City, IA 52242, USA
| | - Jinxi Wang
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 285 Newton Rd, Iowa City, IA 52242, USA
| | - Ran Huo
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, 180 S Grand Ave., Iowa City, IA 52242, USA
| | - Jean C Shih
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, 1985 Zonal Avenue, Los Angeles, CA 90089, USA
| | - Biyi Chen
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 285 Newton Rd, Iowa City, IA 52242, USA
| | - Duane Hall
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 285 Newton Rd, Iowa City, IA 52242, USA
- Abboud Cardiovascular Research Center, Carver College of Medicine, University of Iowa, CBRB 2267285, Newton Rd, Iowa City, IA 52242, USA
| | - E Dale Abel
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 285 Newton Rd, Iowa City, IA 52242, USA
- Abboud Cardiovascular Research Center, Carver College of Medicine, University of Iowa, CBRB 2267285, Newton Rd, Iowa City, IA 52242, USA
- Fraternal Order of Eagles Diabetes Research Center, Carver College of Medicine, University of Iowa, 169 Newton Rd, Iowa City, IA 52242, USA
| | - Long-Sheng Song
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 285 Newton Rd, Iowa City, IA 52242, USA
- Abboud Cardiovascular Research Center, Carver College of Medicine, University of Iowa, CBRB 2267285, Newton Rd, Iowa City, IA 52242, USA
- Fraternal Order of Eagles Diabetes Research Center, Carver College of Medicine, University of Iowa, 169 Newton Rd, Iowa City, IA 52242, USA
| | - Ethan J Anderson
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, 180 S Grand Ave., Iowa City, IA 52242, USA
- Abboud Cardiovascular Research Center, Carver College of Medicine, University of Iowa, CBRB 2267285, Newton Rd, Iowa City, IA 52242, USA
- Fraternal Order of Eagles Diabetes Research Center, Carver College of Medicine, University of Iowa, 169 Newton Rd, Iowa City, IA 52242, USA
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4
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van der Woude H, Phan K, Kenwright DN, Goossens L, Hally KE, Currie MJ, Kokkinos J, Sharbeen G, Phillips PA, Henry CE. Development of a long term, ex vivo, patient-derived explant model of endometrial cancer. PLoS One 2024; 19:e0301413. [PMID: 38635728 PMCID: PMC11025966 DOI: 10.1371/journal.pone.0301413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 03/16/2024] [Indexed: 04/20/2024] Open
Abstract
Incidence of endometrial cancer (EC) is rising in the developed world. The current standard of care, hysterectomy, is often infeasible for younger patients and those with high body mass index. There are limited non-surgical treatment options and a lack of biologically relevant research models to investigate novel alternatives to surgery for EC. The aim of the present study was to develop a long-term, patient-derived explant (PDE) model of early-stage EC and demonstrate its use for investigating predictive biomarkers for a current non-surgical treatment option, the levonorgestrel intra-uterine system (LNG-IUS). Fresh tumour specimens were obtained from patients with early-stage endometrioid EC. Tumours were cut into explants, cultured on media-soaked gelatin sponges for up to 21 days and treated with LNG. Formalin-fixed, paraffin embedded (FFPE) blocks were generated for each explant after 21 days in culture. Tumour architecture and integrity were assessed by haematoxylin and eosin (H&E) and immunohistochemistry (IHC). IHC was additionally performed for the expression of five candidate biomarkers of LNG resistance. The developed ex vivo PDE model is capable of culturing explants from early-stage EC tumours long-term (21 Days). This model can complement existing models and may serve as a tool to validate results obtained in higher-throughput in vitro studies. Our study provides the foundation to validate the extent to which EC PDEs reflect patient response in future research.
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Affiliation(s)
- Hannah van der Woude
- Department of Obstetrics, Gynaecology and Women’s Health, University of Otago, Wellington, New Zealand
| | - Khoi Phan
- Department of Obstetrics, Gynaecology and Women’s Health, University of Otago, Wellington, New Zealand
| | - Diane N. Kenwright
- Department of Pathology and Molecular Medicine, University of Otago, Wellington, New Zealand
| | - Louise Goossens
- Medical Photography, Capital, Coast and Hutt Valley, Wellington, New Zealand
| | | | - Margaret Jane Currie
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - John Kokkinos
- Pancreatic Cancer Translational Research Group, School of Biomedical Sciences, Lowy Cancer Research Centre, UNSW Sydney, Sydney, Australia
| | - George Sharbeen
- Pancreatic Cancer Translational Research Group, School of Biomedical Sciences, Lowy Cancer Research Centre, UNSW Sydney, Sydney, Australia
| | - Phoebe A. Phillips
- Pancreatic Cancer Translational Research Group, School of Biomedical Sciences, Lowy Cancer Research Centre, UNSW Sydney, Sydney, Australia
| | - Claire Elizabeth Henry
- Department of Obstetrics, Gynaecology and Women’s Health, University of Otago, Wellington, New Zealand
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5
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Vlcek P, Bob P, Vales K. Revisiting monoamine oxidase inhibitors: A potential dual-action therapy for patients with prostate cancer and comorbid depression? J Psychopharmacol 2023; 37:1157-1160. [PMID: 37300415 DOI: 10.1177/02698811231179808] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Premysl Vlcek
- National Institute of Mental Health, Klecany, Czech Republic
- Department of Psychiatry, First Faculty of Medicine, Prague, Czech Republic
- Department of Psychiatry and Medical Psychology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Petr Bob
- Department of Psychiatry, First Faculty of Medicine, Prague, Czech Republic
| | - Karel Vales
- National Institute of Mental Health, Klecany, Czech Republic
- Department of Psychiatry and Medical Psychology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
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6
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Alkhawaldeh A, Bardaweel S. Molecular Investigation of the Antitumor Effects of Monoamine Oxidase Inhibitors in Breast Cancer Cells. BIOMED RESEARCH INTERNATIONAL 2023; 2023:2592691. [PMID: 37841082 PMCID: PMC10569896 DOI: 10.1155/2023/2592691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 09/05/2023] [Accepted: 09/19/2023] [Indexed: 10/17/2023]
Abstract
The catalytic activity of monoamine oxidase A (MAO-A) has been linked to tumorigenesis due to the production of reactive oxygen species (ROS) and the resulting oxidative stress. MAO-A inhibition revealed a beneficial role in prostate and lung cancer treatment. This study is aimed at evaluating the effect of different monoamine oxidase A inhibitors (MAO-AIs) on the proliferation and progression of breast cancer cell lines. The cell viability assay was used to evaluate the antiproliferative and combined effects of MAO-AIs. Cell migration was evaluated using wound healing, invasion, and colony formation assays. The underlying mechanism of cell death was studied using flow cytometry. The real-time polymerase chain reaction was used to determine the relative gene expression. Finally, MAO-A activity in breast cancer cells was evaluated using an MAO-A activity assay. According to the results, the examined MAO-AIs significantly inhibited the proliferation of breast cancer cells in a dose-dependent manner. In breast cancer cells, the combination of anticancer drugs (doxorubicin or raloxifene) with MAO-AIs resulted in a synergistic effect. MAO-AIs significantly reduced wound closure and invasion ability in breast cancer cells. Also, MAO-AIs reduced the colony count and size of breast cancer cells. MAO-AIs resulted in significant proapoptotic activity in breast cancer cells. Finally, the MAO-AIs suppressed MAO-A, Bcl-2, and VEGF gene expressions in breast cancer cells relative to untreated cells. This study provides solid evidence supporting the anticancer effect of MAO-A inhibitors in breast cancer cells.
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Affiliation(s)
- Aseel Alkhawaldeh
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Jordan, Queen Rania Street, Amman 11942, Jordan
| | - Sanaa Bardaweel
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Jordan, Queen Rania Street, Amman 11942, Jordan
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7
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Jacobs MR, Olivero JE, Ok Choi H, Liao CP, Kashemirov BA, Katz JE, Gross ME, McKenna CE. Synthesis and anti-cancer potential of potent peripheral MAOA inhibitors designed to limit blood:brain penetration. Bioorg Med Chem 2023; 92:117425. [PMID: 37544256 DOI: 10.1016/j.bmc.2023.117425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/30/2023] [Accepted: 07/25/2023] [Indexed: 08/08/2023]
Abstract
Monoamine oxidases (MAOA/MAOB) are enzymes known for their role in neurotransmitter regulation in the central nervous system (CNS). Irreversible and non-selective MAO inhibitors (MAOi's) were the first class of antidepressants, thus subsequent work on drugs such as the selective MAOA inhibitor clorgyline has focussed on selectivity and increased CNS penetration. MAOA is highly expressed in high grade and metastatic prostate cancer with a proposed effect on prostate cancer growth, recurrence, and drug resistance. A Phase II Clinical Trial has demonstrated the therapeutic effects of the irreversible nonselective MAOi phenelzine for prostate cancer. However, neurologic adverse effects led to early withdrawal in 25% of the enrolled patient-population. In this work, we revised the clorgyline scaffold with the goal of decreasing CNS penetration to minimize CNS-related side effects while retaining or enhancing MAOA inhibition potency and selectivity. Using the known co-crystal structure of clorgyline bound with FAD co-factor in the hMAOA active site as a reference, we designed and synthesized a series of compounds predicted to have lower CNS penetration (logBB). All synthesized derivatives displayed favorable drug-like characteristics such as predicted Caco-2 permeability and human oral absorption, and exhibited highly selective hMAOA binding interactions. Introduction of an HBD group (NH2 or OH) at position 5 of the phenyl ring clorgyline resulted in 3x more potent hMAOA inhibition with equivalent or better hMAOB selectivity, and similar prostate cancer cell cytotoxicity. In contrast, introduction of larger substituents at this position or at the terminal amine significantly reduced the hMAOA inhibition potency, attributed in part to a steric clash within the binding pocket of the MAOA active site. Replacement of the N-methyl group by a more polar, but larger 2-hydroxyethyl group did not enhance potency. However, introduction of a polar 2-hydroxy in the propyl chain retained the highly selective MAOA inhibition and cancer cell cytotoxicity of clorgyline while reducing its CNS score from 2 to 0. We believe that these results identify a new class of peripherally directed MAOIs that may allow safer therapeutic targeting of MAOA for a variety of anti-cancer and anti-inflammatory indications.
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Affiliation(s)
- Michaela R Jacobs
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Jennifer E Olivero
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Hyun Ok Choi
- Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA 90064, USA.
| | - Chun-Peng Liao
- Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA 90064, USA.
| | - Boris A Kashemirov
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Jonathan E Katz
- Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA 90064, USA; Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| | - Mitchell E Gross
- Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA 90064, USA; Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| | - Charles E McKenna
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
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8
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Tseng HJ, Banerjee S, Qian B, Lai MJ, Wu TY, Hsu TI, Lin TE, Hsu KC, Chuang KH, Liou JP, Shih JC. Design, synthesis, and biological activity of dual monoamine oxidase A and heat shock protein 90 inhibitors, N-Methylpropargylamine-conjugated 4-isopropylresorcinol for glioblastoma. Eur J Med Chem 2023; 256:115459. [PMID: 37172473 PMCID: PMC10247544 DOI: 10.1016/j.ejmech.2023.115459] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
Monoamine oxidase A (MAO A) and heat shock protein 90 (HSP90) inhibitors have been shown to decrease the progression of glioblastoma (GBM) and other cancers. In this study, a series of MAO A/HSP90 dual inhibitors were designed and synthesized in the hope to develop more effective treatment of GBM. Compounds 4-b and 4-c are conjugates of isopropylresorcinol (pharmacophore of HSP90 inhibitor) with the phenyl group of clorgyline (MAO A inhibitor) by a tertiary amide bond substituted with methyl (4-b) or ethyl (4-c) group, respectively. They inhibited MAO A activity, HSP90 binding, and the growth of both TMZ-sensitive and -resistant GBM cells. Western blots showed that they increased HSP70 expression indicating reduced function of HSP90, reduced HER2 and phospho-Akt expression similar to MAO A or HSP90 inhibitor itself. Both compounds decreased IFN-γ induced PD-L1 expression in GL26 cells, suggesting they can act as immune checkpoint inhibitor. Further, they reduced tumor growth in GL26 mouse model. NCI-60 analysis showed they also inhibited the growth of colon cancer, leukemia, non-small cell lung and other cancers. Taken together, this study demonstrates MAO A/HSP90 dual inhibitors 4-b and 4-c reduced the growth of GBM and other cancers, and they have potential to inhibit tumor immune escape.
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Affiliation(s)
- Hui-Ju Tseng
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, 90089, United States; School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 110031, Taiwan
| | - Suddhasatwa Banerjee
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 110031, Taiwan
| | - Bin Qian
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, 90089, United States
| | - Mei-Jung Lai
- TMU Research Center for Drug Discovery, Taipei Medical University, Taipei, 110031, Taiwan
| | - Tung-Yun Wu
- Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, 110031, Taiwan
| | - Tsung-I Hsu
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, 11031, Taiwan; International Master Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Tony Eight Lin
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan; Ph.D. Program in Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Kai-Cheng Hsu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan; Ph.D. Program in Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Kuo-Hsiang Chuang
- TMU Research Center for Drug Discovery, Taipei Medical University, Taipei, 110031, Taiwan; Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei, 110031, Taiwan
| | - Jing-Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 110031, Taiwan; TMU Research Center for Drug Discovery, Taipei Medical University, Taipei, 110031, Taiwan; Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan.
| | - Jean C Shih
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, 90089, United States; Department of Integrative Anatomical Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, United States; Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, United States; USC-Taiwan Center for Translational Research, Los Angeles, CA, 90089, United States.
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9
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Han H, Li H, Ma Y, Zhao Z, An Q, Zhao J, Shi C. Monoamine oxidase A (MAOA): A promising target for prostate cancer therapy. Cancer Lett 2023; 563:216188. [PMID: 37076041 DOI: 10.1016/j.canlet.2023.216188] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 04/21/2023]
Abstract
Monoamine oxidase A (MAOA) is a mitochondrial enzyme that catalyzes the oxidative deamination of monoamine neurotransmitters and dietary amines. Previous studies have shown that MAOA is clinically associated with prostate cancer (PCa) progression and plays a key role in almost each stage of PCa, including castrate-resistant prostate cancer, neuroendocrine prostate cancer, metastasis, drug resistance, stemness, and perineural invasion. Moreover, MAOA expression is upregulated not only in cancer cells but also in stromal cells, intratumoral T cells, and tumor-associated macrophages; thus, targeting MAOA can be a multi-pronged approach to disrupt tumor promoting interactions between PCa cells and tumor microenvironment. Furthermore, targeting MAOA can disrupt the crosstalk between MAOA and the androgen receptor (AR) to restore enzalutamide sensitivity, blocks glucocorticoid receptor (GR)- and AR-dependent PCa cell growth, and is a potential strategy for immune checkpoint inhibition, thereby alleviating immune suppression and enhancing T cell immunity-based cancer immunotherapy. MAOA is a promising target for PCa therapy, which deserves further exploration in preclinical and clinical settings.
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Affiliation(s)
- Hao Han
- Division of Cancer Biology, Laboratory Animal Center, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; School of Basic Medical Sciences, Medical College of Yan'an University, 580 Bao-Ta Street, Yan'an, Shaanxi, 716000, China
| | - Hui Li
- Division of Cancer Biology, Laboratory Animal Center, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; School of Basic Medical Sciences, Medical College of Yan'an University, 580 Bao-Ta Street, Yan'an, Shaanxi, 716000, China
| | - Yifan Ma
- Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu, 730030, China
| | - Zhite Zhao
- Department of Urology, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, 710032, China
| | - Qingling An
- Division of Cancer Biology, Laboratory Animal Center, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jumei Zhao
- School of Basic Medical Sciences, Medical College of Yan'an University, 580 Bao-Ta Street, Yan'an, Shaanxi, 716000, China.
| | - Changhong Shi
- Division of Cancer Biology, Laboratory Animal Center, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
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Rullo M, La Spada G, Miniero DV, Gottinger A, Catto M, Delre P, Mastromarino M, Latronico T, Marchese S, Mangiatordi GF, Binda C, Linusson A, Liuzzi GM, Pisani L. Bioisosteric replacement based on 1,2,4-oxadiazoles in the discovery of 1H-indazole-bearing neuroprotective MAO B inhibitors. Eur J Med Chem 2023; 255:115352. [PMID: 37178666 DOI: 10.1016/j.ejmech.2023.115352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 05/15/2023]
Abstract
Following a hybridization strategy, a series of 5-substituted-1H-indazoles were designed and evaluated in vitro as inhibitors of human monoamine oxidase (hMAO) A and B. Among structural modifications, the bioisostere-based introduction of 1,2,4-oxadiazole ring returned the most potent and selective human MAO B inhibitor (compound 20, IC50 = 52 nM, SI > 192). The most promising inhibitors were studied in cell-based neuroprotection models of SH-SY5Y and astrocytes line against H2O2. Moreover, preliminary drug-like features (aqueous solubility at pH 7.4; hydrolytic stability at acidic and neutral pH) were assessed for selected 1,2,4-oxadiazoles and compared to amide analogues through RP-HPLC methods. Molecular docking simulations highlighted the crucial role of molecular flexibility in providing a better shape complementarity for compound 20 within MAO B enzymatic cleft than rigid analogue 18. Enzymatic kinetics analysis along with thermal stability curves (Tm shift = +2.9 °C) provided clues of a tight-binding mechanism for hMAO B inhibition by 20.
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Affiliation(s)
- Mariagrazia Rullo
- Dept. of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, via E. Orabona 4, 70125, Bari, Italy
| | - Gabriella La Spada
- Dept. of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, via E. Orabona 4, 70125, Bari, Italy
| | - Daniela Valeria Miniero
- Dept. of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Andrea Gottinger
- Dept. of Biology and Biotechnology, University of Pavia, via Ferrata 9, 27100, Pavia, Italy
| | - Marco Catto
- Dept. of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, via E. Orabona 4, 70125, Bari, Italy
| | - Pietro Delre
- CNR, Institute of Crystallography, 70126, Bari, Italy
| | - Margherita Mastromarino
- Dept. of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, via E. Orabona 4, 70125, Bari, Italy
| | - Tiziana Latronico
- Dept. of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Sara Marchese
- Dept. of Biology and Biotechnology, University of Pavia, via Ferrata 9, 27100, Pavia, Italy
| | | | - Claudia Binda
- Dept. of Biology and Biotechnology, University of Pavia, via Ferrata 9, 27100, Pavia, Italy
| | - Anna Linusson
- Department of Chemistry, Umeå University, 90187, Umeå, Sweden
| | - Grazia Maria Liuzzi
- Dept. of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Leonardo Pisani
- Dept. of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, via E. Orabona 4, 70125, Bari, Italy.
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11
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Chang J, Wu H, Wu J, Liu M, Zhang W, Hu Y, Zhang X, Xu J, Li L, Yu P, Zhu J. Constructing a novel mitochondrial-related gene signature for evaluating the tumor immune microenvironment and predicting survival in stomach adenocarcinoma. J Transl Med 2023; 21:191. [PMID: 36915111 PMCID: PMC10012538 DOI: 10.1186/s12967-023-04033-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/03/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND The incidence and mortality of gastric cancer ranks fifth and fourth worldwide among all malignancies, respectively. Accumulating evidences have revealed the close relationship between mitochondrial dysfunction and the initiation and progression of stomach cancer. However, rare prognostic models for mitochondrial-related gene risk have been built up in stomach cancer. METHODS In current study, the expression and prognostic value of mitochondrial-related genes in stomach adenocarcinoma (STAD) patients were systematically analyzed to establish a mitochondrial-related risk model based on available TCGA and GEO databases. The tumor microenvironment (TME), immune cell infiltration, tumor mutation burden, and drug sensitivity of gastric adenocarcinoma patients were also investigated using R language, GraphPad Prism 8 and online databases. RESULTS We established a mitochondrial-related risk prognostic model including NOX4, ALDH3A2, FKBP10 and MAOA and validated its predictive power. This risk model indicated that the immune cell infiltration in high-risk group was significantly different from that in the low-risk group. Besides, the risk score was closely related to TME signature genes and immune checkpoint molecules, suggesting that the immunosuppressive tumor microenvironment might lead to poor prognosis in high-risk groups. Moreover, TIDE analysis demonstrated that combined analysis of risk score and immune score, or stromal score, or microsatellite status could more effectively predict the benefit of immunotherapy in STAD patients with different stratifications. Finally, rapamycin, PD-0325901 and dasatinib were found to be more effective for patients in the high-risk group, whereas AZD7762, CEP-701 and methotrexate were predicted to be more effective for patients in the low-risk group. CONCLUSIONS Our results suggest that the mitochondrial-related risk model could be a reliable prognostic biomarker for personalized treatment of STAD patients.
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Affiliation(s)
- Jingjia Chang
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China
| | - Hao Wu
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China
| | - Jin Wu
- Department of Pathology, Laboratory of Translational Medicine Research, Deyang People's Hospital, Deyang, China.,Key Laboratory of Tumor Molecular Research of Deyang, Deyang, China.,Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY, 14263, USA
| | - Ming Liu
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China
| | - Wentao Zhang
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China
| | - Yanfen Hu
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China
| | - Xintong Zhang
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China
| | - Jing Xu
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China
| | - Li Li
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China
| | - Pengfei Yu
- Department of Gastrointestinal Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi, China.
| | - Jianjun Zhu
- Department of Cell Biology and Medical Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, 030001, China.
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12
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Lê A, Selle A, Aubert P, Durand T, Brosseau C, Bordron P, Delage E, Chaffron S, Petitfils C, Cenac N, Neunlist M, Bodinier M, Rolli-Derkinderen M. Maternal prebiotic supplementation impacts colitis development in offspring mice. Front Nutr 2023; 9:988529. [PMID: 36687706 PMCID: PMC9849907 DOI: 10.3389/fnut.2022.988529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/11/2022] [Indexed: 01/07/2023] Open
Abstract
Background and aims Maternal diet plays a key role in preventing or contributing to the development of chronic diseases, such as obesity, allergy, and brain disorders. Supplementation of maternal diet with prebiotics has been shown to reduce the risk of food allergies and affect the intestinal permeability in offspring later in life. However, its role in modulating the development of other intestinal disorders, such as colitis, remains unknown. Therefore, we investigated the effects of prebiotic supplementation in pregnant mice on the occurrence of colitis in their offspring. Materials and methods Offspring from mothers, who were administered prebiotic galacto-oligosaccharides and inulin during gestation or fed a control diet, were subjected to three cycles of dextran sulphate sodium (DSS) treatment to induce chronic colitis, and their intestinal function and disease activity were evaluated. Colonic remodelling, gut microbiota composition, and lipidomic and transcriptomic profiles were also assessed. Results DSS-treated offspring from prebiotic-fed mothers presented a higher disease score, increased weight loss, and increased faecal humidity than those from standard diet-fed mothers. DSS-treated offspring from prebiotic-fed mothers also showed increased number of colonic mucosal lymphocytes and macrophages than the control group, associated with the increased colonic concentrations of resolvin D5, protectin DX, and 14-hydroxydocosahexaenoic acid, and modulation of colonic gene expression. In addition, maternal prebiotic supplementation induced an overabundance of eight bacterial families and a decrease in the butyrate caecal concentration in DSS-treated offspring. Conclusion Maternal prebiotic exposure modified the microbiota composition and function, lipid content, and transcriptome of the colon of the offspring. These modifications did not protect against colitis, but rather sensitised the mice to colitis development.
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Affiliation(s)
- Amélie Lê
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l’Appareil Digestif, Institut National Pour la Santé et la Recherche Médicale, Nantes Université, Nantes, France
| | - Amandine Selle
- Unité de Recherche 1268 Biopolymères Interactions Assemblages, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Nantes, France
| | - Philippe Aubert
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l’Appareil Digestif, Institut National Pour la Santé et la Recherche Médicale, Nantes Université, Nantes, France
| | - Tony Durand
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l’Appareil Digestif, Institut National Pour la Santé et la Recherche Médicale, Nantes Université, Nantes, France
| | - Carole Brosseau
- Unité de Recherche 1268 Biopolymères Interactions Assemblages, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Nantes, France
| | - Philippe Bordron
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l’Appareil Digestif, Institut National Pour la Santé et la Recherche Médicale, Nantes Université, Nantes, France
| | - Erwan Delage
- UMR 6004, LS2N, Nantes Université, Ecole Centrale Nantes, CNRS, Nantes, France
| | - Samuel Chaffron
- UMR 6004, LS2N, Nantes Université, Ecole Centrale Nantes, CNRS, Nantes, France
| | - Camille Petitfils
- UMR 1220, Institut de Recherche en Santé Digestive, Toulouse, France
| | - Nicolas Cenac
- UMR 1220, Institut de Recherche en Santé Digestive, Toulouse, France
| | - Michel Neunlist
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l’Appareil Digestif, Institut National Pour la Santé et la Recherche Médicale, Nantes Université, Nantes, France
| | - Marie Bodinier
- Unité de Recherche 1268 Biopolymères Interactions Assemblages, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Nantes, France
| | - Malvyne Rolli-Derkinderen
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l’Appareil Digestif, Institut National Pour la Santé et la Recherche Médicale, Nantes Université, Nantes, France,*Correspondence: Malvyne Rolli-Derkinderen,
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13
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Wu BJ, Shih JC. In Vitro and In Vivo Assays Characterizing MAO A Function in Cancers. Methods Mol Biol 2023; 2558:171-182. [PMID: 36169863 PMCID: PMC9651040 DOI: 10.1007/978-1-0716-2643-6_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Emerging studies, including ours, have revealed the novel essential roles of monoamine oxidase A (MAO A) in mediating the growth and progression of several types of cancers. Recently, we presented the first evidence of MAO A's ability to promote cancer cell perineural invasion, the neoplastic invasion of nerves widely recognized as a significant route for cancer metastasis. Here, we describe a perineural invasion in vitro assay using a 3D coculture with a cancer cell line and an immortalized dorsal root ganglion neuronal cell line for rapid examination of MAO A's roles in cancer-nerve cell crosstalk and evaluating the efficacy of MAO A inhibitors for disrupting perineural invasion. We also summarized the fundamental methods for determining MAO A's effects on cancer cell proliferation in vitro and tumorigenesis in vivo.
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Affiliation(s)
- Boyang Jason Wu
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA 99202, USA,Corresponding authors: Jean C. Shih: , Boyang Jason Wu:
| | - Jean C. Shih
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA,Corresponding authors: Jean C. Shih: , Boyang Jason Wu:
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14
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Chen CH, Wu BJ. Monoamine oxidase A: An emerging therapeutic target in prostate cancer. Front Oncol 2023; 13:1137050. [PMID: 36860320 PMCID: PMC9968829 DOI: 10.3389/fonc.2023.1137050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
Monoamine oxidase A (MAOA), a mitochondrial enzyme degrading biogenic and dietary amines, has been studied in the contexts of neuropsychiatry and neurological disorders for decades, but its importance in oncology, as best exemplified in prostate cancer (PC) to date, was only realized recently. PC is the most commonly diagnosed non-skin cancer and the second deadliest malignancy for men in the United States. In PC, the increased expression level of MAOA is correlated with dedifferentiated tissue microarchitecture and a worse prognosis. A wealth of literature has demonstrated that MAOA promotes growth, metastasis, stemness and therapy resistance in PC, mainly by increasing oxidative stress, augmenting hypoxia, inducing epithelial-to-mesenchymal transition, and activating the downstream principal transcription factor Twist1-dictated multiple context-dependent signaling cascades. Cancer-cell-derived MAOA also enables cancer-stromal cell interaction involving bone stromal cells and nerve cells by secretion of Hedgehog and class 3 semaphorin molecules respectively to modulate the tumor microenvironment in favor of invasion and metastasis. Further, MAOA in prostate stromal cells promotes PC tumorigenesis and stemness. Current studies suggest that MAOA functions in PC in both cell autonomous and non-autonomous manners. Importantly, clinically available monoamine oxidase inhibitors have shown promising results against PC in preclinical models and clinical trials, providing a great opportunity to repurpose them as a PC therapy. Here, we summarize recent advances in our understanding of MAOA roles and mechanisms in PC, present several MAOA-targeted strategies that have been nominated for treating PC, and discuss the unknowns of MAOA function and targeting in PC for future exploration.
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Affiliation(s)
- Chia-Hui Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, United States
| | - Boyang Jason Wu
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, United States
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15
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Lapierre JA, Geary LA, Jang JK, Epstein AL, Hong F, Shih JC. Deletion of monoamine oxidase A in a prostate cancer model enhances anti-tumor immunity through reduced immune suppression. Biochem Biophys Res Commun 2022; 634:100-107. [DOI: 10.1016/j.bbrc.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 11/02/2022]
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16
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Xin R, Shen B, Jiang YJ, Liu JB, Li S, Hou LK, Wu W, Jia CY, Wu CY, Fu D, Ma YS, Jiang GX. Comprehensive analysis to identify a novel PTEN-associated ceRNA regulatory network as a prognostic biomarker for lung adenocarcinoma. Front Oncol 2022; 12:923026. [PMID: 36091160 PMCID: PMC9449356 DOI: 10.3389/fonc.2022.923026] [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: 04/18/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Lung adenocarcinoma (LUAD) is one of the most prevalent forms of lung cancer. Competitive endogenous RNA (ceRNA) plays an important role in the pathogenesis of lung cancer. Phosphatase and tensin homolog (PTEN) is one of the most frequently deleted tumour suppressor genes in LUAD. The present study aimed to identify a novel PTEN-associated-ceRNA regulatory network and identify potential prognostic markers associated with LUAD. Transcriptome sequencing profiles of 533 patients with LUAD were obtained from TCGA database, and differentially expressed genes (DEGs) were screened in LUAD samples with PTEN high- (PTENhigh) and low- (PTENlow) expression. Eventually, an important PTEN-related marker was identified, namely, the LINC00460/miR-150-3p axis. Furthermore, the predicted target genes (EME1/HNRNPAB/PLAUR/SEMA3A) were closely related to overall survival and prognosis. The LINC00460/miR-150-3p axis was identified as a clinical prognostic factor through Cox regression analysis. Methylation analyses suggested that abnormal regulation of the predicted target genes might be caused by hypomethylation. Furthermore, immune infiltration analysis showed that the LINC00460/miR-150-3p axis could alter the levels of immune infiltration in the tumour immune microenvironment, and promote the clinical progression of LUAD. To specifically induce PTEN deletion in the lungs, we constructed an STP mouse model (SFTPC-rtTA/tetO-cre/Ptenflox/+). Quantitative PCR (qPCR) and immunohistochemical (IHC) analysis were used to detect predicted target genes. Therefore, we revealed that the PTEN-related LINC00460/miR-150-3p axis based on ceRNA mechanism plays an important role in the development of LUAD and provides a new direction and theoretical basis for its targeted therapy.
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Affiliation(s)
- Rui Xin
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Biao Shen
- Department of Thoracic Surgery, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Ying-Jie Jiang
- Department of Pathology, Navy Military Medical University Affiliated Changhai Hospital, Shanghai, China
| | - Ji-Bin Liu
- Institute of Oncology, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, China
| | - Sha Li
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Li-Kun Hou
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wei Wu
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Cheng-You Jia
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chun-Yan Wu
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Da Fu
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
- Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Geng-Xi Jiang, ; Yu-Shui Ma, ; Da Fu,
| | - Yu-Shui Ma
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Geng-Xi Jiang, ; Yu-Shui Ma, ; Da Fu,
| | - Geng-Xi Jiang
- Department of Thoracic Surgery, Navy Military Medical University Affiliated Changhai Hospital, Shanghai, China
- *Correspondence: Geng-Xi Jiang, ; Yu-Shui Ma, ; Da Fu,
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17
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Ojha R, Chen IC, Hsieh CM, Nepali K, Lai RW, Hsu KC, Lin TE, Pan SL, Chen MC, Liou JP. Installation of Pargyline, a LSD1 Inhibitor, in the HDAC Inhibitory Template Culminated in the Identification of a Tractable Antiprostate Cancer Agent. J Med Chem 2021; 64:17824-17845. [PMID: 34908406 DOI: 10.1021/acs.jmedchem.1c00966] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Pragmatic insertion of pargyline, a LSD1 inhibitor, as a surface recognition part in the HDAC inhibitory pharmacophore was planned in pursuit of furnishing potent antiprostate cancer agents. Resultantly, compound 14 elicited magnificent cell growth inhibitory effects against the PC-3 and DU-145 cell lines and led to remarkable suppression of tumor growth in human prostate PC-3 and DU-145 xenograft nude mouse models. The outcome of the enzymatic assays ascertained that the substantial antiproliferative effects of compound 14 were mediated through HDAC6 isoform inhibition as well as selective MAO-A and LSD1 inhibition. Moreover, the signatory feature of LSD1 inhibition by 14 in the context of H3K4ME2 accumulation was clearly evident from the results of western blot analysis. Gratifyingly, hydroxamic acid 14 demonstrates good human hepatocytic stability and good oral bioavailability in rats and exhibits enough promise to emerge as a therapeutic for the treatment of prostate cancer in the near future.
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Affiliation(s)
- Ritu Ojha
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - I-Chung Chen
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Chien-Ming Hsieh
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan
| | - Kunal Nepali
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan
| | - Row-Wen Lai
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Kai-Cheng Hsu
- Graduate Institute of Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan.,Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Tony Eight Lin
- Master Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110031, Taiwan
| | - Shiow-Lin Pan
- Graduate Institute of Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan.,Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Mei-Chuan Chen
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan.,Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 110031, Taiwan.,Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Jing-Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan
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18
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Tian J, Zhang C, Kang N, Wang J, Kong N, Zhou J, Wu M, Ding L, Sun H, Yan G, Sheng X. Attenuated monoamine oxidase a impairs endometrial receptivity in women with adenomyosis via downregulation of FOXO1. Biol Reprod 2021; 105:1443-1457. [PMID: 34568943 DOI: 10.1093/biolre/ioab182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/13/2021] [Accepted: 09/21/2021] [Indexed: 11/12/2022] Open
Abstract
The establishment of endometrial receptivity is a prerequisite for successful pregnancy. Women with adenomyosis possess a lower chance of clinical pregnancy after assisted reproductive technology, which is partially due to impaired endometrial receptivity. The establishment of endometrial receptivity requires the participation of multiple processes, and proper endometrial epithelial cell (EEC) proliferation is indispensable. Monoamine oxidase A (MAOA) is a key molecule that regulates neurotransmitter metabolism in the nervous system. In the present study, we demonstrated a novel role for MAOA in the establishment of endometrial receptivity in women with adenomyosis and in an adenomyotic mouse model. Attenuated MAOA impairs endometrial receptivity by promoting inappropriate proliferation of EECs via the downregulation of FOXO1 during the window of implantation. These results revealed that MAOA plays a vital role in endometrial receptivity in female reproduction.
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Affiliation(s)
- Jiao Tian
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Chunxue Zhang
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Nannan Kang
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Junxia Wang
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Na Kong
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Jidong Zhou
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Min Wu
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Lijun Ding
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Haixiang Sun
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, 210032 Nanjing, China
| | - Guijun Yan
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
| | - Xiaoqiang Sheng
- Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Center for Molecular Reproductive Medicine, Nanjing University
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19
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Romero-Reyes J, Vázquez-Martínez ER, Bahena-Alvarez D, López-Jiménez J, Molina-Hernández A, Camacho-Arroyo I, Díaz NF. Differential localization of serotoninergic system elements in human amniotic epithelial cells†. Biol Reprod 2021; 105:439-448. [PMID: 34057176 DOI: 10.1093/biolre/ioab106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/21/2021] [Indexed: 11/13/2022] Open
Abstract
Serotonin or 5-hydroxytryptamine (5-HT) is a biogenic amine involved in regulating several functions, including development. However, its impact on human embryo development has been poorly studied. The present work investigated the expression and distribution of the main components of the serotoninergic system in human amniotic tissue and human amniotic epithelial cells (hAEC) in vitro, as an alternative model of early human embryo development. Amniotic membranes from full-term healthy pregnancies were used. Human amnion tissue or hAEC isolated from the amnion was processed for reverse transcription-polymerase chain reaction and immunofluorescence analyses of the main components of the serotoninergic system. We found the expression of tryptophan hydroxylase type 1 (TPH1), type 2 (TPH2), serotonin transporter (SERT), monoamine oxidase-A (MAOA), as well as HTR1D and HTR7 receptors at mRNA level in amnion tissue as well in hAEC. Interestingly, we found the presence of 5-HT in the nucleus of the cells in amnion tissue, whereas it was located in the cytoplasm of isolated hAEC. We detected TPH1, TPH2, and HTR1D receptor in both the nucleus and cytoplasm. SERT, MAOA, and HTR7 receptor were only observed in the cytoplasm. The results presented herein show, for the first time, the presence of the serotoninergic system in human amnion in vivo and in vitro.
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Affiliation(s)
- Jessica Romero-Reyes
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
| | - Edgar Ricardo Vázquez-Martínez
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
| | - Daniel Bahena-Alvarez
- Departamento de Neurociencia Cognitiva, Instituto de Fisiología Celular, UNAM, Ciudad de México, México
| | - Jessica López-Jiménez
- Departamento de Fisiología y Desarrollo Celular, Instituto Nacional de Perinatología (INPer), Ciudad de México, México
| | - Anayansi Molina-Hernández
- Departamento de Fisiología y Desarrollo Celular, Instituto Nacional de Perinatología (INPer), Ciudad de México, México
| | - Ignacio Camacho-Arroyo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
| | - Néstor Fabián Díaz
- Departamento de Fisiología y Desarrollo Celular, Instituto Nacional de Perinatología (INPer), Ciudad de México, México
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20
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Gwynne WD, Shakeel MS, Girgis-Gabardo A, Hassell JA. The Role of Serotonin in Breast Cancer Stem Cells. Molecules 2021; 26:molecules26113171. [PMID: 34073226 PMCID: PMC8198186 DOI: 10.3390/molecules26113171] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 02/07/2023] Open
Abstract
Breast tumors were the first tumors of epithelial origin shown to follow the cancer stem cell model. The model proposes that cancer stem cells are uniquely endowed with tumorigenic capacity and that their aberrant differentiation yields non-tumorigenic progeny, which constitute the bulk of the tumor cell population. Breast cancer stem cells resist therapies and seed metastases; thus, they account for breast cancer recurrence. Hence, targeting these cells is essential to achieve durable breast cancer remissions. We identified compounds including selective antagonists of multiple serotonergic system pathway components required for serotonin biosynthesis, transport, activity via multiple 5-HT receptors (5-HTRs), and catabolism that reduce the viability of breast cancer stem cells of both mouse and human origin using multiple orthologous assays. The molecular targets of the selective antagonists are expressed in breast tumors and breast cancer cell lines, which also produce serotonin, implying that it plays a required functional role in these cells. The selective antagonists act synergistically with chemotherapy to shrink mouse mammary tumors and human breast tumor xenografts primarily by inducing programmed tumor cell death. We hypothesize those serotonergic proteins of diverse activity function by common signaling pathways to maintain cancer stem cell viability. Here, we summarize our recent findings and the relevant literature regarding the role of serotonin in breast cancer.
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Affiliation(s)
- William D. Gwynne
- Department of Surgery, McMaster University, Hamilton, ON L8S 4L8, Canada;
| | - Mirza S. Shakeel
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4L8, Canada; (M.S.S.); (A.G.-G.)
| | - Adele Girgis-Gabardo
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4L8, Canada; (M.S.S.); (A.G.-G.)
| | - John A. Hassell
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4L8, Canada; (M.S.S.); (A.G.-G.)
- Correspondence:
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21
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Ostadkarampour M, Putnins EE. Monoamine Oxidase Inhibitors: A Review of Their Anti-Inflammatory Therapeutic Potential and Mechanisms of Action. Front Pharmacol 2021; 12:676239. [PMID: 33995107 PMCID: PMC8120032 DOI: 10.3389/fphar.2021.676239] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/06/2021] [Indexed: 12/18/2022] Open
Abstract
Chronic inflammatory diseases are debilitating, affect patients' quality of life, and are a significant financial burden on health care. Inflammation is regulated by pro-inflammatory cytokines and chemokines that are expressed by immune and non-immune cells, and their expression is highly controlled, both spatially and temporally. Their dysregulation is a hallmark of chronic inflammatory and autoimmune diseases. Significant evidence supports that monoamine oxidase (MAO) inhibitor drugs have anti-inflammatory effects. MAO inhibitors are principally prescribed for the management of a variety of central nervous system (CNS)-associated diseases such as depression, Alzheimer's, and Parkinson's; however, they also have anti-inflammatory effects in the CNS and a variety of non-CNS tissues. To bolster support for their development as anti-inflammatories, it is critical to elucidate their mechanism(s) of action. MAO inhibitors decrease the generation of end products such as hydrogen peroxide, aldehyde, and ammonium. They also inhibit biogenic amine degradation, and this increases cellular and pericellular catecholamines in a variety of immune and some non-immune cells. This decrease in end product metabolites and increase in catecholamines can play a significant role in the anti-inflammatory effects of MAO inhibitors. This review examines MAO inhibitor effects on inflammation in a variety of in vitro and in vivo CNS and non-CNS disease models, as well as their anti-inflammatory mechanism(s) of action.
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Affiliation(s)
- Mahyar Ostadkarampour
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
| | - Edward E Putnins
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
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22
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Puhr M, Eigentler A, Handle F, Hackl H, Ploner C, Heidegger I, Schaefer G, Brandt MP, Hoefer J, Van der Pluijm G, Klocker H. Targeting the glucocorticoid receptor signature gene Mono Amine Oxidase-A enhances the efficacy of chemo- and anti-androgen therapy in advanced prostate cancer. Oncogene 2021; 40:3087-3100. [PMID: 33795839 PMCID: PMC8084733 DOI: 10.1038/s41388-021-01754-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/28/2021] [Accepted: 03/08/2021] [Indexed: 12/19/2022]
Abstract
Despite increasing options for treatment of castration-resistant prostate cancer, development of drug resistance is inevitable. The glucocorticoid receptor (GR) is a prime suspect for acquired therapy resistance, as prostate cancer (PCa) cells are able to increase GR signaling during anti-androgen therapy and thereby circumvent androgen receptor (AR)-blockade and cell death. As standard AR-directed therapies fail to block the GR and GR inhibitors might result in intolerable side effects, the identification of GR signature genes, which are better suited for a targeted approach, is of clinical importance. Therefore, the specific epithelial and stromal GR signature was determined in cancer-associated fibroblasts as well as in abiraterone and enzalutamide-resistant cells after glucocorticoid (GC) treatment. Microarray and ChIP analysis identified MAO-A as a directly up-regulated mutual epithelial and stromal GR target, which is induced after GC treatment and during PCa progression. Elevated MAO-A levels were confirmed in in vitro cell models, in primary tissue cultures after GC treatment, and in patients after neoadjuvant chemotherapy with GCs. MAO-A expression correlates with GR/AR activity as well as with a reduced progression-free survival. Pharmacological MAO-A inhibition combined with 2nd generation AR signaling inhibitors or chemotherapeutics results in impaired growth of androgen-dependent, androgen-independent, and long-term anti-androgen-treated cells. In summary, these findings demonstrate that targeting MAO-A represents an innovative therapeutic strategy to synergistically block GR and AR dependent PCa cell growth and thereby overcome therapy resistance.
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MESH Headings
- Male
- Humans
- Receptors, Glucocorticoid/metabolism
- Receptors, Glucocorticoid/genetics
- Androgen Antagonists/pharmacology
- Androgen Antagonists/therapeutic use
- Monoamine Oxidase/genetics
- Monoamine Oxidase/metabolism
- Prostatic Neoplasms, Castration-Resistant/drug therapy
- Prostatic Neoplasms, Castration-Resistant/genetics
- Prostatic Neoplasms, Castration-Resistant/pathology
- Prostatic Neoplasms, Castration-Resistant/metabolism
- Phenylthiohydantoin/pharmacology
- Receptors, Androgen/metabolism
- Receptors, Androgen/genetics
- Cell Line, Tumor
- Drug Resistance, Neoplasm/genetics
- Nitriles/pharmacology
- Gene Expression Regulation, Neoplastic/drug effects
- Benzamides/pharmacology
- Androstenes/pharmacology
- Androstenes/therapeutic use
- Cancer-Associated Fibroblasts/metabolism
- Cancer-Associated Fibroblasts/pathology
- Cancer-Associated Fibroblasts/drug effects
- Glucocorticoids/pharmacology
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Affiliation(s)
- Martin Puhr
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria.
| | - Andrea Eigentler
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Florian Handle
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Hubert Hackl
- Institute of Bioinformatics, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Christian Ploner
- Department of Plastic, Reconstructive and Aesthetic Surgery Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - Isabel Heidegger
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Georg Schaefer
- Department of Pathology, Medical University of Innsbruck, Innsbruck, Austria
| | - Maximilian P Brandt
- Department of Urology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Julia Hoefer
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Gabri Van der Pluijm
- Department of Urology, Leiden University Medical Center, Leiden, The Netherlands
| | - Helmut Klocker
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
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23
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Huang Y, Zhao W, Ouyang X, Wu F, Tao Y, Shi M. Monoamine Oxidase A Inhibits Lung Adenocarcinoma Cell Proliferation by Abrogating Aerobic Glycolysis. Front Oncol 2021; 11:645821. [PMID: 33763378 PMCID: PMC7982599 DOI: 10.3389/fonc.2021.645821] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/04/2021] [Indexed: 12/24/2022] Open
Abstract
Lung adenocarcinoma (LUAD) accounts for ~30% of all lung cancers and is one of the causes of cancer-related death worldwide. As the role of monoamine oxidase A (MAOA) in LUAD remains unclear, in this study, we examine how MAOA affects LUAD cell proliferation. Analyses of both public data and our data reveal that the expression of MAOA is downregulated in LUAD compared with non-tumor tissue. In addition, the expression of MAOA in tumors correlates with clinicopathologic features, and the expression of MAOA serves as an independent biomarker in LUAD. In addition, the overexpression of MAOA inhibits LUAD cell proliferation by inducing G1 arrest in vitro. Further mechanistic studies show that MAOA abrogates aerobic glycolysis in LUAD cells by decreasing hexokinase 2 (HK2). Finally, the expression of HK2 shows a negative correlation with MAOA in LUAD, and high HK2 predicts poor clinical outcome. In conclusion, our findings indicate that MAOA functions as a tumor suppressor in LUAD. Our results indicate that the MAOA/HK2 axis could be potential targets in LUAD therapy.
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Affiliation(s)
- Yumin Huang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Department of Respiratory Medicine, The Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Wei Zhao
- School of Laboratory Medicine/Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-Origin Food, Chengdu Medical College, Chengdu, China
| | - Xiaoping Ouyang
- Department of Respiratory Medicine, The Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Feng Wu
- Department of Respiratory Medicine, The Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Yujian Tao
- Department of Respiratory Medicine, The Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Minhua Shi
- Department of Respiratory Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, China
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24
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Santin Y, Resta J, Parini A, Mialet-Perez J. Monoamine oxidases in age-associated diseases: New perspectives for old enzymes. Ageing Res Rev 2021; 66:101256. [PMID: 33434685 DOI: 10.1016/j.arr.2021.101256] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/04/2020] [Accepted: 01/05/2021] [Indexed: 12/19/2022]
Abstract
Population aging is one of the most significant social changes of the twenty-first century. This increase in longevity is associated with a higher prevalence of chronic diseases, further rising healthcare costs. At the molecular level, cellular senescence has been identified as a major process in age-associated diseases, as accumulation of senescent cells with aging leads to progressive organ dysfunction. Of particular importance, mitochondrial oxidative stress and consequent organelle alterations have been pointed out as key players in the aging process, by both inducing and maintaining cellular senescence. Monoamine oxidases (MAOs), a class of enzymes that catalyze the degradation of catecholamines and biogenic amines, have been increasingly recognized as major producers of mitochondrial ROS. Although well-known in the brain, evidence showing that MAOs are also expressed in a variety of peripheral organs stimulated a growing interest in the extra-cerebral roles of these enzymes. Besides, the fact that MAO-A and/or MAO-B are frequently upregulated in aged or dysfunctional organs has uncovered new perspectives on their roles in pathological aging. In this review, we will give an overview of the major results on the regulation and function of MAOs in aging and age-related diseases, paying a special attention to the mechanisms linked to the increased degradation of MAO substrates or related to MAO-dependent ROS formation.
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Affiliation(s)
- Yohan Santin
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Jessica Resta
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Angelo Parini
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Jeanne Mialet-Perez
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France.
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25
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Bao X, Zhang J, Huang G, Yan J, Xu C, Dou Z, Sun C, Zhang H. The crosstalk between HIFs and mitochondrial dysfunctions in cancer development. Cell Death Dis 2021; 12:215. [PMID: 33637686 PMCID: PMC7910460 DOI: 10.1038/s41419-021-03505-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/02/2021] [Accepted: 02/04/2021] [Indexed: 12/12/2022]
Abstract
Mitochondria are essential cellular organelles that are involved in regulating cellular energy, metabolism, survival, and proliferation. To some extent, cancer is a genetic and metabolic disease that is closely associated with mitochondrial dysfunction. Hypoxia-inducible factors (HIFs), which are major molecules that respond to hypoxia, play important roles in cancer development by participating in multiple processes, such as metabolism, proliferation, and angiogenesis. The Warburg phenomenon reflects a pseudo-hypoxic state that activates HIF-1α. In addition, a product of the Warburg effect, lactate, also induces HIF-1α. However, Warburg proposed that aerobic glycolysis occurs due to a defect in mitochondria. Moreover, both HIFs and mitochondrial dysfunction can lead to complex reprogramming of energy metabolism, including reduced mitochondrial oxidative metabolism, increased glucose uptake, and enhanced anaerobic glycolysis. Thus, there may be a connection between HIFs and mitochondrial dysfunction. In this review, we systematically discuss the crosstalk between HIFs and mitochondrial dysfunctions in cancer development. Above all, the stability and activity of HIFs are closely influenced by mitochondrial dysfunction related to tricarboxylic acid cycle, electron transport chain components, mitochondrial respiration, and mitochondrial-related proteins. Furthermore, activation of HIFs can lead to mitochondrial dysfunction by affecting multiple mitochondrial functions, including mitochondrial oxidative capacity, biogenesis, apoptosis, fission, and autophagy. In general, the regulation of tumorigenesis and development by HIFs and mitochondrial dysfunction are part of an extensive and cooperative network.
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Affiliation(s)
- Xingting Bao
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Jinhua Zhang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Guomin Huang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Junfang Yan
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Caipeng Xu
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Zhihui Dou
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Chao Sun
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, China.
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China.
| | - Hong Zhang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, China.
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 101408, Beijing, China.
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26
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MED19 alters AR occupancy and gene expression in prostate cancer cells, driving MAOA expression and growth under low androgen. PLoS Genet 2021; 17:e1008540. [PMID: 33513133 PMCID: PMC7875385 DOI: 10.1371/journal.pgen.1008540] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 02/10/2021] [Accepted: 01/04/2021] [Indexed: 11/19/2022] Open
Abstract
Androgen deprivation therapy (ADT) is a mainstay of prostate cancer treatment, given the dependence of prostate cells on androgen and the androgen receptor (AR). However, tumors become ADT-resistant, and there is a need to understand the mechanism. One possible mechanism is the upregulation of AR co-regulators, although only a handful have been definitively linked to disease. We previously identified the Mediator subunit MED19 as an AR co-regulator, and reported that MED19 depletion inhibits AR transcriptional activity and growth of androgen-insensitive LNCaP-abl cells. Therefore, we proposed that MED19 upregulation would promote AR activity and drive androgen-independent growth. Here, we show that stable overexpression of MED19 in androgen-dependent LNCaP cells promotes growth under conditions of androgen deprivation. To delineate the mechanism, we determined the MED19 and AR transcriptomes and cistromes in control and MED19-overexpressing LNCaP cells. We also examined genome-wide H3K27 acetylation. MED19 overexpression selectively alters AR occupancy, H3K27 acetylation, and gene expression. Under conditions of androgen deprivation, genes regulated by MED19 correspond to genes regulated by ELK1, a transcription factor that binds the AR N-terminus to induce select AR target gene expression and proliferation, and genomic sites occupied by MED19 and AR are enriched for motifs associated with ELK1. Strikingly, MED19 upregulates expression of monoamine oxidase A (MAOA), a factor that promotes prostate cancer growth. MAOA depletion reduces androgen-independent growth. MED19 and AR occupy the MAOA promoter, with MED19 overexpression enhancing AR occupancy and H3K27 acetylation. Furthermore, MED19 overexpression increases ELK1 occupancy at the MAOA promoter, and ELK1 depletion reduces MAOA expression and androgen-independent growth. This suggests that MED19 cooperates with ELK1 to regulate AR occupancy and H3K27 acetylation at MAOA, upregulating its expression and driving androgen independence in prostate cancer cells. This study provides important insight into the mechanisms of prostate cancer cell growth under low androgen, and underscores the importance of the MED19-MAOA axis in this process.
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27
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Abstract
Metastatic dissemination occurs very early in the malignant progression of a cancer but the clinical manifestation of metastases often takes years. In recent decades, 5-year survival of patients with many solid cancers has increased due to earlier detection, local disease control and adjuvant therapies. As a consequence, we are confronted with an increase in late relapses as more antiproliferative cancer therapies prolong disease courses, raising questions about how cancer cells survive, evolve or stop growing and finally expand during periods of clinical latency. I argue here that the understanding of early metastasis formation, particularly of the currently invisible phase of metastatic colonization, will be essential for the next stage in adjuvant therapy development that reliably prevents metachronous metastasis.
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Affiliation(s)
- Christoph A Klein
- Experimental Medicine and Therapy Research, University of Regensburg, Regensburg, Germany.
- Division of Personalized Tumor Therapy, Fraunhofer Institute for Toxicology and Experimental Medicine, Regensburg, Germany.
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28
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Pang YY, Li JD, Gao L, Yang X, Dang YW, Lai ZF, Liu LM, Yang J, Wu HY, He RQ, Huang ZG, Xiong DD, Yang LH, Shi L, Mo WJ, Tang D, Lu HP, Chen G. The clinical value and potential molecular mechanism of the downregulation of MAOA in hepatocellular carcinoma tissues. Cancer Med 2020; 9:8004-8019. [PMID: 32931665 PMCID: PMC7643659 DOI: 10.1002/cam4.3434] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 12/11/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) remains one of the most common cancers worldwide and tends to be detected at an advanced stage. More effective biomarkers for HCC screening and prognosis assessment are needed and the mechanisms of HCC require further exploration. The role of MAOA in HCC has not been intensively investigated. Methods In‐house tissue microarrays, genechips, and RNAsequencing datasets were integrated to explore the expression status and the clinical value of MAOA in HCC. Immunohistochemical staining was utilized to determine MAOA protein expression. Intersection genes of MAOA related co‐expressed genes and differentially expressed genes were obtained to perform functional enrichment analyses. In vivo experiment was conducted to study the impact of traditional Chinese medicine nitidine chloride (NC) on MAOA in HCC. Results MAOA was downregulated and possessed an excellent discriminatory capability in HCC patients. Decreased MAOA correlated with poor prognosis in HCC patients. Downregulated MAOA protein was relevant to an advanced TNM stage in HCC patients. Co‐expressed genes that positively related to MAOA were clustered in chemical carcinogenesis, where CYP2E1 was identified as the hub gene. In vivo experiment showed that nitidine chloride significantly upregulated MAOA in a nude mouse HCC model. Conclusions A decreased MAOA level is not only correlated with aggressive behaviors in males but also serves as a promising biomarker for the diagnosis and prognosis of HCC patients. Moreover, MAOA may play a role in AFB1 toxic transformation through its synergistic action with co‐expressed genes, especially CYP3A4. MAOA also serves as a potential therapy target of NC in HCC patients.
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Affiliation(s)
- Yu-Yan Pang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Jian-Di Li
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Li Gao
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Xia Yang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Yi-Wu Dang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Ze-Feng Lai
- School of Pharmacy, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Li-Min Liu
- School of Pharmacy, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Jie Yang
- School of Pharmacy, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Hua-Yu Wu
- Department of Cell Biology and Genetics, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Rong-Quan He
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Zhi-Guang Huang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Dan-Dan Xiong
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Li-Hua Yang
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Lin Shi
- Department of Pathology, Second Affiliated Hospital of Guangxi Medical University, Nanning, P.R. China
| | - Wei-Jia Mo
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Deng Tang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Hui-Ping Lu
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P.R. China
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Chen L, Guo L, Sun Z, Yang G, Guo J, Chen K, Xiao R, Yang X, Sheng L. Monoamine Oxidase A is a Major Mediator of Mitochondrial Homeostasis and Glycolysis in Gastric Cancer Progression. Cancer Manag Res 2020; 12:8023-8035. [PMID: 32943935 PMCID: PMC7481281 DOI: 10.2147/cmar.s257848] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 08/02/2020] [Indexed: 01/07/2023] Open
Abstract
Objective Monoamine oxidase A (MAO-A) is a mitochondrial protein involved in tumourigenesis in different types of cancer. However, the biological function of MAO-A in gastric cancer development remains unknown. Methods We examined MAO-A expression in gastric cancer tissues and in gastric cancer cell lines by immunohistochemistry and Western blot analyses. CCK8, FACS and bromodeoxyuridine incorporation assays were performed to assess the effects of MAO-A on gastric cancer cell proliferation. The role of MAO-A in mitochondrial function was determined through MitoSOX Red staining, ATP generation and glycolysis assays. Results In the present study, we observed that MAO-A was significantly upregulated in gastric cancer tissues and in AGS and MGC803 cells. The observed MAO-A inhibition indicated decreased cell cycle progression and proliferation. Silencing MAO-A expression was associated with suppressed migration and invasion of gastric cancer cells in vitro. Moreover, alleviated mitochondrial damage in these cells was demonstrated by decreased levels of mitochondrial reactive oxygen species and increased ATP generation. MAO-A knockdown also regulated the expression of the glycolysis rate-limiting enzymes hexokinase 2 and pyruvate dehydrogenase. Finally, we observed that the glycolysis-mediated effect was weakened in AGS and MGC803 cells when MAO-A was blocked. Conclusion The findings of the present study indicate that MAO-A is responsible for mitochondrial dysfunction and aerobic glycolysis, which in turn leads to the proliferation and metastasis of human gastric tumour cells.
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Affiliation(s)
- Ling Chen
- Department of Oncology, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, Shandong, People's Republic of China
| | - Li Guo
- Department of Clinical Laboratory, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, Shandong, People's Republic of China
| | - Ziwen Sun
- Department of Scientific Research and Education, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, Shandong, People's Republic of China
| | - Guochun Yang
- Department of Emergency Medicine, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, Shandong, People's Republic of China
| | - Jing Guo
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Kai Chen
- The Department of Cardiovascular and Thoracic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Ruixue Xiao
- Department of Pathology, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, Shandong, People's Republic of China
| | - Xigui Yang
- Department of Oncology, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, Shandong, People's Republic of China
| | - Lijun Sheng
- Department of Oncology, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, Shandong, People's Republic of China
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30
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Nishimura T, Nakamura H, Yachie A, Hase T, Fujii K, Koizumi H, Naruki S, Takagi M, Matsuoka Y, Furuya N, Kato H, Saji H. Disease-related cellular protein networks differentially affected under different EGFR mutations in lung adenocarcinoma. Sci Rep 2020; 10:10881. [PMID: 32616892 PMCID: PMC7331587 DOI: 10.1038/s41598-020-67894-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 05/28/2020] [Indexed: 12/21/2022] Open
Abstract
It is unclear how epidermal growth factor receptor EGFR major driver mutations (L858R or Ex19del) affect downstream molecular networks and pathways. This study aimed to provide information on the influences of these mutations. The study assessed 36 protein expression profiles of lung adenocarcinoma (Ex19del, nine; L858R, nine; no Ex19del/L858R, 18). Weighted gene co-expression network analysis together with analysis of variance-based screening identified 13 co-expressed modules and their eigen proteins. Pathway enrichment analysis for the Ex19del mutation demonstrated involvement of SUMOylation, epithelial and mesenchymal transition, ERK/mitogen-activated protein kinase signalling via phosphorylation and Hippo signalling. Additionally, analysis for the L858R mutation identified various pathways related to cancer cell survival and death. With regard to the Ex19del mutation, ROCK, RPS6KA1, ARF1, IL2RA and several ErbB pathways were upregulated, whereas AURK and GSKIP were downregulated. With regard to the L858R mutation, RB1, TSC22D3 and DOCK1 were downregulated, whereas various networks, including VEGFA, were moderately upregulated. In all mutation types, CD80/CD86 (B7), MHC, CIITA and IFGN were activated, whereas CD37 and SAFB were inhibited. Costimulatory immune-checkpoint pathways by B7/CD28 were mainly activated, whereas those by PD-1/PD-L1 were inhibited. Our findings may help identify potential therapeutic targets and develop therapeutic strategies to improve patient outcomes.
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Affiliation(s)
- Toshihide Nishimura
- Department of Translational Medicine Informatics, St. Marianna University School of Medicine, Kawasaki, Kanagawa, 216-8511, Japan.
| | - Haruhiko Nakamura
- Department of Translational Medicine Informatics, St. Marianna University School of Medicine, Kawasaki, Kanagawa, 216-8511, Japan
- Department of Chest Surgery, St. Marianna University School of Medicine, Kawasaki, Kanagawa, 216-8511, Japan
| | - Ayako Yachie
- The Systems Biology Institute, Tokyo, 141-0022, Japan
| | - Takeshi Hase
- The Systems Biology Institute, Tokyo, 141-0022, Japan
| | - Kiyonaga Fujii
- Department of Translational Medicine Informatics, St. Marianna University School of Medicine, Kawasaki, Kanagawa, 216-8511, Japan
| | - Hirotaka Koizumi
- Department of Pathology, St. Marianna University Hospital, Kawasaki, Kanagawa, 216-8511, Japan
| | - Saeko Naruki
- Department of Pathology, St. Marianna University Hospital, Kawasaki, Kanagawa, 216-8511, Japan
| | - Masayuki Takagi
- Department of Pathology, St. Marianna University Hospital, Kawasaki, Kanagawa, 216-8511, Japan
| | | | - Naoki Furuya
- Division of Respiratory Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Kanagawa, 216-8511, Japan
| | - Harubumi Kato
- Tokyo Medical University, Tokyo, 160-0023, Japan
- International University of Health and Welfare, Tokyo, 107-8402, Japan
| | - Hisashi Saji
- Department of Chest Surgery, St. Marianna University School of Medicine, Kawasaki, Kanagawa, 216-8511, Japan
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31
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León-Mateos L, Abalo A, Casas H, Anido U, Rapado-González Ó, Vieito M, Suárez-Cunqueiro M, Gómez-Tato A, Abal M, López-López R, Muinelo-Romay L. Global Gene Expression Characterization of Circulating Tumor Cells in Metastasic Castration-Resistant Prostate Cancer Patients. J Clin Med 2020; 9:jcm9072066. [PMID: 32630240 PMCID: PMC7408664 DOI: 10.3390/jcm9072066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/20/2020] [Accepted: 06/22/2020] [Indexed: 02/08/2023] Open
Abstract
Background: Current therapeutic options in the course of metastatic castration-resistant prostate cancers (mCRPC) reinforce the need for reliable tools to characterize the tumor in a dynamic way. Circulating tumor cells (CTCs) have emerged as a viable solution to the problem, whereby patients with a variety of solid tumors, including PC, often do not have recent tumor tissue available for analysis. The biomarker characterization in CTCs could provide insights into the current state of the disease and an overall picture of the intra-tumor heterogeneity. Methods: in the present study, we applied a global gene expression characterization of the CTC population from mCRPC (n = 9), with the goal to better understand the biology of these cells and identify the relevant molecules favoring this tumor progression. Results: This analysis allowed the identification of 50 genes specifically expressed in CTCs from patients. Six of these markers (HOXB13, QKI, MAOA, MOSPD1, SDK1, and FGD4), were validated in a cohort of 28 mCRPC, showing clinical interest for the management of these patients. Of note, the activity of this CTC signature was related to the regulation of MYC, a gene strongly implicated in the biology of mCRPC. Conclusions: Overall, our results represent new evidence on the great value of CTCs as a non-invasive biopsy to characterize PC.
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Affiliation(s)
- Luis León-Mateos
- Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), 15706 Santiago de Compostela, Spain; (L.L.-M.); (U.A.); (M.S.-C.); (M.A.)
- Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
| | - Alicia Abalo
- Liquid Biopsy Analysis Unit, Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), 15706 Santiago de Compostela, Spain; (A.A.); (H.C.)
| | - Helena Casas
- Liquid Biopsy Analysis Unit, Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), 15706 Santiago de Compostela, Spain; (A.A.); (H.C.)
| | - Urbano Anido
- Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), 15706 Santiago de Compostela, Spain; (L.L.-M.); (U.A.); (M.S.-C.); (M.A.)
| | - Óscar Rapado-González
- Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
- Liquid Biopsy Analysis Unit, Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), 15706 Santiago de Compostela, Spain; (A.A.); (H.C.)
- Department of Surgery and Medical Surgical Specialties, Medicine and Dentistry School, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - María Vieito
- Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron University Hospital, 08035 Barcelona, Spain;
| | - Mercedes Suárez-Cunqueiro
- Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), 15706 Santiago de Compostela, Spain; (L.L.-M.); (U.A.); (M.S.-C.); (M.A.)
- Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
- Department of Surgery and Medical Surgical Specialties, Medicine and Dentistry School, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Antonio Gómez-Tato
- School of Mathematics, University of Santiago de Compostela (Campus Vida), 15782 Santiago de Compostela, Spain;
| | - Miguel Abal
- Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), 15706 Santiago de Compostela, Spain; (L.L.-M.); (U.A.); (M.S.-C.); (M.A.)
- Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
| | - Rafael López-López
- Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), 15706 Santiago de Compostela, Spain; (L.L.-M.); (U.A.); (M.S.-C.); (M.A.)
- Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
- Correspondence: (R.L.-L.); (L.M.-R.)
| | - Laura Muinelo-Romay
- Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
- Liquid Biopsy Analysis Unit, Translational Medical Oncology (Oncomet), Health Research Institute of Santiago (IDIS), 15706 Santiago de Compostela, Spain; (A.A.); (H.C.)
- Correspondence: (R.L.-L.); (L.M.-R.)
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The MAO inhibitors phenelzine and clorgyline revert enzalutamide resistance in castration resistant prostate cancer. Nat Commun 2020; 11:2689. [PMID: 32483206 PMCID: PMC7264333 DOI: 10.1038/s41467-020-15396-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 03/06/2020] [Indexed: 12/28/2022] Open
Abstract
The antiandrogen enzalutamide (Enz) has improved survival in castration resistant prostate cancer (CRPC) patients. However, most patients eventually develop Enz resistance that may involve inducing the androgen receptor (AR) splicing variant 7 (ARv7). Here we report that high expression of monoamine oxidase-A (MAO-A) is associated with positive ARv7 detection in CRPC patients following Enz treatment. Targeting MAO-A with phenelzine or clorgyline, the FDA-approved drugs for antidepression, resensitize the Enz resistant (EnzR) cells to Enz treatment and further suppress EnzR cell growth in vitro and in vivo. Our findings suggest that Enz-increased ARv7 expression can transcriptionally enhance MAO-A expression resulting in Enz resistance via altering the hypoxia HIF-1α signals. Together, our results show that targeting the Enz/ARv7/MAO-A signaling with the antidepressants phenelzine or clorgyline can restore Enz sensitivity to suppress EnzR cell growth, which may indicate that these antidepression drugs can overcome the Enz resistance to further suppress the EnzR CRPC. Castration resistant prostate cancer patients treated with enzalutamide may develop resistance to the drug. Here, the authors report that monoamine oxidase-A expression is increased in these resistant tumors and that the antidepressants phenelzine/clorgyline can reverse such resistance to further suppress tumor growth
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Lee HM, Sia APE, Li L, Sathasivam HP, Chan MSA, Rajadurai P, Tsang CM, Tsao SW, Murray PG, Tao Q, Paterson IC, Yap LF. Monoamine oxidase A is down-regulated in EBV-associated nasopharyngeal carcinoma. Sci Rep 2020; 10:6115. [PMID: 32273550 PMCID: PMC7145851 DOI: 10.1038/s41598-020-63150-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 03/23/2020] [Indexed: 02/06/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a highly metastatic cancer that is consistently associated with Epstein-Barr virus (EBV) infection. In this study, we identify for the first time a role for monoamine oxidase A (MAOA) in NPC. MAOA is a mitochondrial enzyme that catalyzes oxidative deamination of neurotransmitters and dietary amines. Depending on the cancer type, MAOA can either have a tumour-promoting or tumour-suppressive role. We show that MAOA is down-regulated in primary NPC tissues and its down-regulation enhances the migration of NPC cells. In addition, we found that EBV infection can down-regulate MAOA expression in both pre-malignant and malignant nasopharyngeal epithelial (NPE) cells. We further demonstrate that MAOA is down-regulated as a result of IL-6/IL-6R/STAT3 signalling and epigenetic mechanisms, effects that might be attributed to EBV infection in NPE cells. Taken together, our data point to a central role for EBV in mediating the tumour suppressive effects of MAOA and that loss of MAOA could be an important step in the pathogenesis of NPC.
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Affiliation(s)
- Hui Min Lee
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Alice Pei Eal Sia
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Lili Li
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | | | - Melissa Sue Ann Chan
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Chi Man Tsang
- School of Biomedical Sciences and Center for Cancer Research, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Shatin, Hong Kong.,Department of Anatomical and Cellular Pathology and State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Pokfulam, Hong Kong
| | - Sai Wah Tsao
- School of Biomedical Sciences and Center for Cancer Research, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Shatin, Hong Kong
| | - Paul G Murray
- Health Research Institute, University of Limerick, Limerick, Ireland.,Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Qian Tao
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Ian C Paterson
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia.,Oral Cancer Research and Coordinating Centre, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Lee Fah Yap
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia.
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Phase 2 trial of monoamine oxidase inhibitor phenelzine in biochemical recurrent prostate cancer. Prostate Cancer Prostatic Dis 2020; 24:61-68. [PMID: 32123315 PMCID: PMC7483294 DOI: 10.1038/s41391-020-0211-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/30/2020] [Accepted: 02/07/2020] [Indexed: 11/17/2022]
Abstract
Purpose: Monoamine oxidase A (MAOA) influences prostate cancer growth and metastasis in pre-clinical models. We examined effects of phenelzine (a monoamine oxidase inhibitor) in patients with biochemical recurrent castrate-sensitive prostate cancer. Materials and methods: An open-label single arm clinical trial enrolled subjects with biochemical recurrent prostate cancer defined by: PSA ≥ 0.4 ng/ml (post-prostatectomy) or PSA ≥ 2 ng/ml above nadir (post-radiation therapy); no evidence of metastasis on imaging; and normal androgen levels. Subjects received phenelzine 30 mg orally twice daily. Mood symptoms were assessed with the hospital anxiety depression score (HADS) questionnaire. The primary endpoint was the proportion of patients who achieved a PSA decline of ≥50% from baseline. Results: Characteristics of the 20 eligible patients enrolled included: mean ± SD age 66.9± 4.8 years and PSA 4.7± 5.8 ng/dl. Maximal PSA declines ≥ 30% and ≥ 50% were observed in 25% (n=5/20) and 10% (n=2/20) of subjects, respectively. At 12 weeks, 17 subjects remained on treatment with PSA declines ≥ 30% and ≥ 50% of 24% (n=4/17) and 6% (n=1/17), respectively. Common toxicities observed included dizziness (grade 1 = 45%, grade 2= 35%), hypertension (grade ≥ 2 =30%), and edema (grade 1=25%, grade 2=10%). There was 1 episode of grade 4 hypertension (cycle 4) and 2 episodes of grade 3 syncope (cycle 12 and cycle 14) requiring treatment discontinuation. HADS questionnaires demonstrated a significant decrease in anxiety with no change in depressive symptoms on treatment. Conclusions: Phenelzine demonstrated efficacy in patients with biochemical recurrent castrate sensitive prostate cancer. Most treatment related toxicities were mild, but rare significant and reversible cardiovascular toxicities were observed. Therapies directed at MAOA may represent a new avenue for treatment in patients with recurrent prostate cancer. Trial registration: ClinicalTrials.gov Identifier: ClinicalTrial: NCT02217709
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35
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Santin Y, Fazal L, Sainte-Marie Y, Sicard P, Maggiorani D, Tortosa F, Yücel YY, Teyssedre L, Rouquette J, Marcellin M, Vindis C, Shih JC, Lairez O, Burlet-Schiltz O, Parini A, Lezoualc'h F, Mialet-Perez J. Mitochondrial 4-HNE derived from MAO-A promotes mitoCa 2+ overload in chronic postischemic cardiac remodeling. Cell Death Differ 2019; 27:1907-1923. [PMID: 31819159 DOI: 10.1038/s41418-019-0470-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 02/01/2023] Open
Abstract
Chronic remodeling postmyocardial infarction consists in various maladaptive changes including interstitial fibrosis, cardiomyocyte death and mitochondrial dysfunction that lead to heart failure (HF). Reactive aldehydes such as 4-hydroxynonenal (4-HNE) are critical mediators of mitochondrial dysfunction but the sources of mitochondrial 4-HNE in cardiac diseases together with its mechanisms of action remain poorly understood. Here, we evaluated whether the mitochondrial enzyme monoamine oxidase-A (MAO-A), which generates H2O2 as a by-product of catecholamine metabolism, is a source of deleterious 4-HNE in HF. We found that MAO-A activation increased mitochondrial ROS and promoted local 4-HNE production inside the mitochondria through cardiolipin peroxidation in primary cardiomyocytes. Deleterious effects of MAO-A/4-HNE on cardiac dysfunction were prevented by activation of mitochondrial aldehyde dehydrogenase 2 (ALDH2), the main enzyme for 4-HNE metabolism. Mechanistically, MAO-A-derived 4-HNE bound to newly identified targets VDAC and MCU to promote ER-mitochondria contact sites and MCU higher-order complex formation. The resulting mitochondrial Ca2+ accumulation participated in mitochondrial respiratory dysfunction and loss of membrane potential, as shown with the protective effects of the MCU inhibitor, RU360. Most interestingly, these findings were recapitulated in a chronic model of ischemic remodeling where pharmacological or genetic inhibition of MAO-A protected the mice from 4-HNE accumulation, MCU oligomer formation and Ca2+ overload, thus mitigating ventricular dysfunction. To our knowledge, these are the first evidences linking MAO-A activation to mitoCa2+ mishandling through local 4-HNE production, contributing to energetic failure and postischemic remodeling.
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Affiliation(s)
- Yohan Santin
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Loubina Fazal
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Yannis Sainte-Marie
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Pierre Sicard
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France.,INSERM, CNRS, Université de Montpellier, PHYMEDEXP, Montpellier, France
| | - Damien Maggiorani
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Florence Tortosa
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Yasemin Yücel Yücel
- Department of Biochemistry, School of Pharmacy, Altinbas University, Istanbul, Turkey
| | | | | | - Marlene Marcellin
- Institut de Pharmacologie et de Biologie Structurale, CNRS, Université de Toulouse, UPS, Toulouse, France
| | - Cécile Vindis
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Jean C Shih
- University of Southern California, Los Angeles, CA, USA
| | - Olivier Lairez
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Odile Burlet-Schiltz
- Institut de Pharmacologie et de Biologie Structurale, CNRS, Université de Toulouse, UPS, Toulouse, France
| | - Angelo Parini
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France.
| | - Frank Lezoualc'h
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Jeanne Mialet-Perez
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France.
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Gwynne WD, Shakeel MS, Wu J, Hallett RM, Girgis-Gabardo A, Dvorkin-Gheva A, Hassell JA. Monoamine oxidase-A activity is required for clonal tumorsphere formation by human breast tumor cells. Cell Mol Biol Lett 2019; 24:59. [PMID: 31754354 PMCID: PMC6852929 DOI: 10.1186/s11658-019-0183-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 10/01/2019] [Indexed: 12/15/2022] Open
Abstract
Background Breast tumor growth and recurrence are driven by an infrequent population of breast tumor-initiating cells (BTIC). We and others have reported that the frequency of BTIC is orders of magnitude higher when breast tumor cells are propagated in vitro as clonal spheres, termed tumorspheres, by comparison to adherent cells. We exploited the latter to screen > 35,000 small molecules to identify agents capable of targeting BTIC. We unexpectedly discovered that selective antagonists of serotonin signaling were among the hit compounds. To better understand the relationship between serotonin and BTIC we expanded our analysis to include monoamine oxidase-A (MAO-A), an enzyme that metabolizes serotonin. Methods We used the Nanostring technology and Western blotting to determine whether MAO-A is expressed in human breast tumor cell lines cultured as tumorspheres by comparison to those grown as adherent cells. We then determined whether MAO-A activity is required for tumorsphere formation, a surrogate in vitro assay for BTIC, by assessing whether selective MAO-A inhibitors affect the frequency of tumorsphere-forming cells. To learn whether MAO-A expression in breast tumor cells is associated with other reported properties of BTIC such as anticancer drug resistance or breast tumor recurrence, we performed differential gene expression analyses using publicly available transcriptomic datasets. Results Tumorspheres derived from human breast tumor cell lines representative of every breast cancer clinical subtype displayed increased expression of MAO-A transcripts and protein by comparison to adherent cells. Surprisingly, inhibition of MAO-A activity with selective inhibitors reduced the frequency of tumorsphere-forming cells. We also found that increased MAO-A expression is a common feature of human breast tumor cell lines that have acquired anticancer drug resistance and is associated with poor recurrence-free survival (RFS) in patients that experienced high-grade, ER-negative (ER−) breast tumors. Conclusions Our data suggests that MAO-A activity is required for tumorsphere formation and that its expression in breast tumor cells is associated with BTIC-related properties. The discovery that a selective MAO-A inhibitor targets tumorsphere-forming cells with potencies in the nanomolar range provides the first evidence of this agent’s anticancer property. These data warrant further investigation of the link between MAO-A and BTIC.
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Affiliation(s)
- William D Gwynne
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario Canada
| | - Mirza S Shakeel
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario Canada
| | - Jianhan Wu
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario Canada
| | - Robin M Hallett
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario Canada
| | - Adele Girgis-Gabardo
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario Canada
| | - Anna Dvorkin-Gheva
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario Canada
| | - John A Hassell
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario Canada
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Hajizadeh F, Okoye I, Esmaily M, Ghasemi Chaleshtari M, Masjedi A, Azizi G, Irandoust M, Ghalamfarsa G, Jadidi-Niaragh F. Hypoxia inducible factors in the tumor microenvironment as therapeutic targets of cancer stem cells. Life Sci 2019; 237:116952. [PMID: 31622608 DOI: 10.1016/j.lfs.2019.116952] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 10/07/2019] [Accepted: 10/09/2019] [Indexed: 02/07/2023]
Abstract
Cancer stem cells (CSC) constitute a small area of the tumor mass and are characterized by self-renewal, differentiation and the ability to promote the development of secondary chemo-resistant tumors. Self-renewal of CSCs is regulated through various signaling pathways including Hedgehog, Notch, and Wnt/β-catenin pathways. A few surface markers have been identified, which provide a means of targeting CSCs according to tumor type. Depending on the proximity of CSCs to the tumor hypoxic niche, hypoxia-inducible factors (HIFs) can play a critical role in modulating several CSC-related characteristics. For instance, the upregulation of HIF-1 and HIF-2 at tumor sites, which correlates with the expansion of CSCs and poor cancer prognosis, has been demonstrated. In this review, we will discuss the mechanisms by which hypoxia enhances the development of CSCs in the tumor microenvironment. Targeting HIFs in combination with other common therapeutics is pre-requisite for effective eradication of CSCs.
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Affiliation(s)
- Farnaz Hajizadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Isobel Okoye
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G 2E1, Canada
| | - Maryam Esmaily
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Ali Masjedi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Gholamreza Azizi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mahzad Irandoust
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ghasem Ghalamfarsa
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Farhad Jadidi-Niaragh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Rice MA, Malhotra SV, Stoyanova T. Second-Generation Antiandrogens: From Discovery to Standard of Care in Castration Resistant Prostate Cancer. Front Oncol 2019; 9:801. [PMID: 31555580 PMCID: PMC6723105 DOI: 10.3389/fonc.2019.00801] [Citation(s) in RCA: 196] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 08/07/2019] [Indexed: 12/14/2022] Open
Abstract
Prostate cancer is the most commonly diagnosed cancer affecting men in the United States. The prostate is a hormone-dependent gland in which androgen hormones testosterone and dihydrotestosterone bind to and activate the androgen receptor, initiating nuclear translocation of androgen receptor and a subsequent signaling cascade. Due to the androgen dependency of the prostate, androgen deprivation therapies have emerged as first line treatment for aggressive prostate cancer. Such therapies are effective until the point at which prostate cancer, through a variety of mechanisms including but not limited to generation of ligand-independent androgen receptor splice variants, or intratumoral androgen production, overcome hormone deprivation. These cancers are androgen ablation resistant, clinically termed castration resistant prostate cancer (CRPC) and remain incurable. First-generation antiandrogens established androgen receptor blockade as a therapeutic strategy, but these therapies do not completely block androgen receptor activity. Efficacy and potency have been improved by the development of second-generation antiandrogen therapies, which remain the standard of care for patients with CRPC. Four second-generation anti-androgens are currently approved by the Food and Drug Administration (FDA); abiraterone acetate, enzalutamide, and recently approved apalutamide and darolutamide. This review is intended to provide a thorough overview of FDA approved second-generation antiandrogen discovery, treatment application, strategies for combination therapy to overcome resistance, and an insight for the potential future approaches for therapeutic inhibition of androgen receptor.
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Affiliation(s)
- Meghan A. Rice
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection, Stanford University, Palo Alto, CA, United States
| | - Sanjay V. Malhotra
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection, Stanford University, Palo Alto, CA, United States
- Department of Radiation Oncology, Stanford University, Palo Alto, CA, United States
| | - Tanya Stoyanova
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection, Stanford University, Palo Alto, CA, United States
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Luongo F, Colonna F, Calapà F, Vitale S, Fiori ME, De Maria R. PTEN Tumor-Suppressor: The Dam of Stemness in Cancer. Cancers (Basel) 2019; 11:E1076. [PMID: 31366089 PMCID: PMC6721423 DOI: 10.3390/cancers11081076] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 07/24/2019] [Accepted: 07/26/2019] [Indexed: 12/11/2022] Open
Abstract
PTEN is one of the most frequently inactivated tumor suppressor genes in cancer. Loss or variation in PTEN gene/protein levels is commonly observed in a broad spectrum of human cancers, while germline PTEN mutations cause inherited syndromes that lead to increased risk of tumors. PTEN restrains tumorigenesis through different mechanisms ranging from phosphatase-dependent and independent activities, subcellular localization and protein interaction, modulating a broad array of cellular functions including growth, proliferation, survival, DNA repair, and cell motility. The main target of PTEN phosphatase activity is one of the most significant cell growth and pro-survival signaling pathway in cancer: PI3K/AKT/mTOR. Several shreds of evidence shed light on the critical role of PTEN in normal and cancer stem cells (CSCs) homeostasis, with its loss fostering the CSC compartment in both solid and hematologic malignancies. CSCs are responsible for tumor propagation, metastatic spread, resistance to therapy, and relapse. Thus, understanding how alterations of PTEN levels affect CSC hallmarks could be crucial for the development of successful therapeutic approaches. Here, we discuss the most significant findings on PTEN-mediated control of CSC state. We aim to unravel the role of PTEN in the regulation of key mechanisms specific for CSCs, such as self-renewal, quiescence/cell cycle, Epithelial-to-Mesenchymal-Transition (EMT), with a particular focus on PTEN-based therapy resistance mechanisms and their exploitation for novel therapeutic approaches in cancer treatment.
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Affiliation(s)
- Francesca Luongo
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
| | - Francesca Colonna
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
| | - Federica Calapà
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
| | - Sara Vitale
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
| | - Micol E Fiori
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy.
| | - Ruggero De Maria
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy.
- Scientific Vice-Direction, Fondazione Policlinico Universitario "A. Gemelli"-I.R.C.C.S., Largo Francesco Vito 1-8, 00168 Rome, Italy.
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Zhang HC, Han YY, Zhang XM, Xiao N, Jiang T, Zhu S, Wang EP, Chen CB. miR-522 facilitates the prosperities of endometrial carcinoma cells by directly binding to monoamine oxidase B. Kaohsiung J Med Sci 2019; 35:598-606. [PMID: 31271496 DOI: 10.1002/kjm2.12107] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/05/2019] [Indexed: 12/13/2022] Open
Abstract
It is well known that microRNAs (miRNAs) are crucial regulatory factors in tumorigenesis, as tumor suppressors or cancer-promoting factors. However, the study of endometrial carcinoma relevance in miR-522 is rare, indicating an undefined molecular mechanism for its role. Therefore, we performed this study to examine the role of miR-522 on the biological behaviors of endometrial carcinoma. In this work, we found that miR-522 was highly expressed in endometrial carcinoma and negatively regulated monoamine oxidase B (MAOB) expression. They also have the opposite effect on prognosis of endometrial carcinoma patients. More importantly, miR-522 could decreased MAOB expression by binding to MAOB with a putative site, thereby promoting cell proliferation, migration, and invasion through in vitro functional analyses, including MTT assay, wound-healing and transwell invasion experiments. Upregulation of MAOB rescued the impacts of miR-522 mimic on cell behaviors. In conclusion, our observations demonstrated that miR-522 accelerated the progression of endometrial carcinoma by inhibiting MAOB, which might lead to a novel therapeutic therapy for endometrial carcinoma.
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Affiliation(s)
- Hong-Chang Zhang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Yan-Yan Han
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Xin-Min Zhang
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Nan Xiao
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Tao Jiang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Shuang Zhu
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - En-Peng Wang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Chang-Bao Chen
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
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Gaur S, Gross ME, Liao CP, Qian B, Shih JC. Effect of Monoamine oxidase A (MAOA) inhibitors on androgen-sensitive and castration-resistant prostate cancer cells. Prostate 2019; 79:667-677. [PMID: 30693539 PMCID: PMC7462252 DOI: 10.1002/pros.23774] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 01/11/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Monoamine oxidase A (MAOA) is best known for its role in neuro-transmitter regulation. Monoamine oxidase inhibitors are used to treat atypical depression. MAOA is highly expressed in high grade prostate cancer and modulates tumorigenesis and progression in prostate cancer. Here, we investigated the potential role of MAOA inhibitors (MAOAIs) in relation to the androgen receptor (AR) pathway and resistance to antiandrogen treatment in prostate cancer. METHODS We examined MAOA expression and the effect of MAOI treatment in relation to AR-targeted treatments using the LNCaP, C4-2B, and 22Rv1 human prostate cancer cell lines. MAOA, AR-full length (AR-FL), AR splice variant 7 (AR-V7), and PSA expression was evaluated in the presence of MAOAIs (clorgyline, phenelzine), androgenic ligand (R1881), and antiandrogen (enzalutamide) treatments. An enzalutamide resistance cell line was generated to test the effect of MAOAI treatment in this model. RESULTS We observed that MAOAIs, particularly clorgyline and phenelzine, were effective at decreasing MAOA activity in human prostate cancer cells. MAOAIs significantly decreased growth of LNCaP, C4-2B, and 22Rv1 cells and produced additive growth inhibitory effects when combined with enzalutamide. Clorgyline decreased expression of AR-FL and AR-V7 in 22Rv1 cells and was effective at decreasing growth of an enzalutamide-resistant C4-2B cell line with increased AR-V7 expression. CONCLUSIONS MAOAIs decrease growth and proliferation of androgen-sensitive and castration-resistant prostate cancer cells. Clorgyline, in particular, decreases expression of AR-FL and AR-V7 expression and decreases growth of an enzalutamide-resistant cell line. These findings provide preclinical validation of MAOA inhibitors either alone or in combination with antiandrogens for therapeutic intent in patients with advanced forms of prostate cancer.
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Affiliation(s)
- Shikha Gaur
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California
| | - Mitchell E. Gross
- Lawrence J. Ellison Institute for Transformative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Chun-Peng Liao
- Lawrence J. Ellison Institute for Transformative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Bin Qian
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California
| | - Jean C. Shih
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California
- USC-Taiwan Center for Translational Research, Los Angeles, California
- Program for Cancer Biology and Drug Discovery, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
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Design, Synthesis, and Evaluation of Monoamine Oxidase A Inhibitors⁻Indocyanine Dyes Conjugates as Targeted Antitumor Agents. Molecules 2019; 24:molecules24071400. [PMID: 30974737 PMCID: PMC6480602 DOI: 10.3390/molecules24071400] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/05/2019] [Accepted: 04/06/2019] [Indexed: 01/19/2023] Open
Abstract
Monoamine oxidase A (MAOA) is an important mitochondria-bound enzyme that catalyzes the oxidative deamination of monoamine neurotransmitters. Accumulating evidence suggests a significant association of increased MAOA expression and advanced high-grade prostate cancer (PCa) progression and metastasis. Herein, a series of novel conjugates combining the MAOA inhibitor isoniazid (INH) and tumor-targeting near-infrared (NIR) heptamethine cyanine dyes were designed and synthesized. The synthesized compounds G1–G13 were evaluated in vitro for their cytotoxicity against PC-3 cells using the MTT assay, and molecular docking studies were performed. Results showed that most tested compounds exhibited improved antitumor efficacy compared with INH. Moreover, conjugates G10 and G11 showed potent anticancer activity with IC50 values (0.85 and 0.4 μM respectively) comparable to that of doxorubicin (DOX). This may be attributable to the preferential accumulation of these conjugates in tumor cells. G10, G11, and G12 also demonstrated moderate MAOA inhibitory activities. This result and the results of molecular docking studies were consistent with their cytotoxicity activities. Taken together, these data suggest that a combination of the MAOA inhibitor INH with tumor-targeting heptamethine cyanine dyes may prove to be a highly promising tool for the treatment of advanced prostate cancer.
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Lv Q, Wang D, Yang Z, Yang J, Zhang R, Yang X, Wang M, Wang Y. Repurposing antitubercular agent isoniazid for treatment of prostate cancer. Biomater Sci 2019; 7:296-306. [PMID: 30468220 DOI: 10.1039/c8bm01189c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The development of versatile antitumor agents with tumor-imaging, targeting and therapeutic activity is promising for clinical cancer therapy. Prostate cancer is still the one of the leading threats to males. Current therapies have restricted clinical efficiency for patients with advanced and metastatic prostate cancer. Recent studies demonstrate that monoamine oxidase A (MAOA) levels elevate with prostate cancer aggression and metastasis. In addition, MAOA inhibitor therapies have been reported as an effective means to reduce the metastasis of prostate cancer and extend mouse survival. Thus, these findings provide evidence that MAOA is promising for the treatment of metastatic and advanced prostate cancer. Herein, three isoniazid (INH)-dye conjugates were synthesized by conjugating MAOA inhibitor INH with mitochondria-targeting NIRF heptamethine dyes to improve the therapeutic efficacy of prostate cancer. These INH-dye conjugates could accumulate in PC-3 cellular mitochondria via organic anion transport peptide (OATP), increase ROS generation, and induce cancer cells apoptosis. In prostate cancer bearing xenografts, INH-dye conjugates showed significantly improved tumor-homing characteristics, resulting in potent antitumor activity via a reduction in MAOA activity. These results suggest that INH-dye conjugates have great potential to be used as versatile antitumor agents with prostate cancer targeting, NIR imaging, and potent antitumor efficacy.
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Affiliation(s)
- Qingzhi Lv
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China.
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Cell division cycle 20 (CDC20) drives prostate cancer progression via stabilization of β-catenin in cancer stem-like cells. EBioMedicine 2019; 42:397-407. [PMID: 30904606 PMCID: PMC6491421 DOI: 10.1016/j.ebiom.2019.03.032] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 02/28/2019] [Accepted: 03/12/2019] [Indexed: 12/23/2022] Open
Abstract
Background Cell division cycle 20 (CDC20) is frequently overexpressed in malignant tumours and involved in the differentiation process of hematopoietic stem cells. However, the role of CDC20 in prostate cancer stem-like cells (CSCs) remains poorly understood. Methods The expression of CDC20, CD44, β-catenin were examined in prostate cancer specimens by immunohistochemistry assay, the role of CDC20 on the stem-like properties of prostate CSCs was accessed by real-time quantitive PCR, spheroid formation, in vitro and in vivo limiting dilution assay. Finding CDC20 was associated with malignant progression of prostate cancer, the patients with both high expression CDC20 and CD44 or β-catenin were associated with more aggressive clinicopathological features and poor prognosis. CDC20 was usually enriched in CD44+ prostate CSCs. Knockdown of CDC20 could inhibit the expression of stemness-related genes, self-renewal ability, chemo-resistance, invasion capability and tumorigenicity of CD44+ prostate CSCs. Mechanistically, CDC20 promoted degradation of Axin1, the core member of β-catenin destruction complex, sequentially reduced the phosphorylation of β-catenin, promoting the latter into the nucleus, thereby enhancing the self-renewal capacity of CD44+ prostate CSCs. Interpretation Our results indicated that CDC20 maintains the self-renewal ability of CD44+ prostate CSCs by promoting nuclear translocation and trans-activation of β-catenin. In addition, CDC20 combined with CD44 or β-catenin can serve as an important indicator for prognosis of patients with prostate cancer.
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Monoamine oxidase isoenzymes: genes, functions and targets for behavior and cancer therapy. J Neural Transm (Vienna) 2018; 125:1553-1566. [PMID: 30259128 DOI: 10.1007/s00702-018-1927-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 09/12/2018] [Indexed: 01/01/2023]
Abstract
Monoamine oxidase (MAO) catalyzes the oxidative deamination of monoamine neurotransmitters and dietary amines. Two pharmacological types with different substrate and inhibitor specificities were reported. Molecular cloning revealed that the two types of MAO were different genes expressed as different proteins with different functions. MAO A and B have identical intron-exon organization derived by duplication of a common ancestral gene thus they are termed isoenzymes. MAO A knockout mice exhibited aggression, the first clear evidence linking genes to behavior. MAO A KO mice exhibited autistic-like behaviors which could be prevented by reducing serotonin levels at an early developmental age (P1-P7) providing potential therapy. MAO B KO mice were non-aggressive and resistant to Parkinsongenic neurotoxin. More recently it was found that MAO A is overexpressed in prostate cancer and correlates with degree of malignancy. The oncogenic mechanism involves a ROS-activated AKT/FOXO1/TWIST1 signaling pathway. Deletion of MAO A reduced prostate cancer stem cells and suppressed invasive adenocarcinoma. MAO A was also overexpressed in classical Hodgkin lymphoma and glioma brain tumors. MAO B was overexpressed in glioma and non-small cell lung cancer. MAO A inhibitors reduce the growth of prostate cancer, drug sensitive and resistant gliomas and classical Hodgkin lymphoma, and enhance standard chemotherapy. Currently, we are developing NIR dye-conjugated clorgyline (MAO A inhibitor) as a novel dual therapeutic/diagnostic agent for cancer. A phase II clinical trial of MAO inhibitor for biochemical recurrent prostate cancer is ongoing. The role of MAO A and B in several cancer types opens new avenues for cancer therapies.
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