1
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Huang H, Hsieh Y, Hsiao C, Lin C, Wang S, Ho K, Chang L, Huang H, Yang S, Chien M. MAOB expression correlates with a favourable prognosis in prostate cancer, and its genetic variants are associated with the metastasis of the disease. J Cell Mol Med 2024; 28:e18229. [PMID: 38520217 PMCID: PMC10960177 DOI: 10.1111/jcmm.18229] [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: 01/19/2024] [Revised: 02/21/2024] [Accepted: 02/24/2024] [Indexed: 03/25/2024] Open
Abstract
Monoamine oxidase B (MAOB), a neurotransmitter-degrading enzyme, was reported to reveal conflicting roles in various cancers. However, the functional role of MAOB and impacts of its genetic variants on prostate cancer (PCa) is unknown. Herein, we genotyped four loci of MAOB single-nucleotide polymorphisms (SNPs), including rs1799836 (A/G), rs3027452 (G/A), rs6651806 (A/C) and rs6324 (G/A) in 702 PCa Taiwanese patients. We discovered that PCa patients carrying the MAOB rs6324 A-allele exhibited an increased risk of having a high initial prostate-specific antigen (iPSA) level (>10 ng/mL). Additionally, patients with the rs3027452 A-allele had a higher risk of developing distal metastasis, particularly in the subpopulation with high iPSA levels. In a subpopulation without postoperative biochemical recurrence, patients carrying the rs1799836 G-allele had a higher risk of developing lymph node metastasis and recurrence compared to those carrying the A-allele. Furthermore, genotype screening in PCa cell lines revealed that cells carrying the rs1799836 G-allele expressed lower MAOB levels than those carrying the A-allele. Functionally, overexpression and knockdown of MAOB in PCa cells respectively suppressed and enhanced cell motility and proliferation. In clinical observations, correlations of lower MAOB expression levels with higher Gleason scores, advanced clinical T stages, tumour metastasis, and poorer prognosis in PCa patients were noted. Our findings suggest that MAOB may act as a suppressor of PCa progression, and the rs3027452 and rs1799836 genetic variants of MAOB are linked to PCa metastasis within the Taiwanese population.
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Affiliation(s)
- Hsiang‐Ching Huang
- Graduate Institute of Medical Sciences, College of MedicineTaipei Medical UniversityTaipeiTaiwan
| | - Yi‐Hsien Hsieh
- Institute of MedicineChung Shan Medical UniversityTaichungTaiwan
- Department of Medical ResearchChung Shan Medical University HospitalTaichungTaiwan
| | - Chi‐Hao Hsiao
- Department of Urology, School of Medicine, College of Medicine and TMU Research Center of Urology and Kidney (TMU‐RCUK)Taipei Medical UniversityTaipeiTaiwan
- Department of Urology, Wan Fang HospitalTaipei Medical UniversityTaipeiTaiwan
| | - Chia‐Yen Lin
- Division of Urology, Department of SurgeryTaichung Veterans General HospitalTaichungTaiwan
- School of MedicineChung Shan Medical UniversityTaichungTaiwan
- School of MedicineNational Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Shian‐Shiang Wang
- Division of Urology, Department of SurgeryTaichung Veterans General HospitalTaichungTaiwan
- School of MedicineChung Shan Medical UniversityTaichungTaiwan
- Department of Applied ChemistryNational Chi Nan UniversityNantouTaiwan
| | - Kuo‐Hao Ho
- Graduate Institute of Clinical Medicine, College of MedicineTaipei Medical UniversityTaipeiTaiwan
| | - Lun‐Ching Chang
- Department of Mathematical SciencesFlorida Atlantic UniversityBoca RatonFloridaUSA
| | - Huei‐Mei Huang
- Graduate Institute of Medical Sciences, College of MedicineTaipei Medical UniversityTaipeiTaiwan
| | - Shun‐Fa Yang
- Institute of MedicineChung Shan Medical UniversityTaichungTaiwan
- Department of Medical ResearchChung Shan Medical University HospitalTaichungTaiwan
| | - Ming‐Hsien Chien
- Graduate Institute of Clinical Medicine, College of MedicineTaipei Medical UniversityTaipeiTaiwan
- Pulmonary Research CenterWan Fang Hospital, Taipei Medical UniversityTaipeiTaiwan
- Traditional Herbal Medicine Research CenterTaipei Medical University HospitalTaipeiTaiwan
- TMU Research Center of Cancer Translational MedicineTaipei Medical UniversityTaipeiTaiwan
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2
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Zirbesegger K, Reyes L, Paolino A, Dapueto R, Arredondo F, Gambini JP, Savio E, Porcal W. Molecular Imaging of Monoamine Oxidase A Expression in Highly Aggressive Prostate Cancer: Synthesis and Preclinical Evaluation of Positron Emission Tomography Tracers. ACS Pharmacol Transl Sci 2023; 6:1734-1744. [PMID: 37982127 PMCID: PMC10653014 DOI: 10.1021/acsptsci.3c00175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/05/2023] [Accepted: 10/10/2023] [Indexed: 11/21/2023]
Abstract
The role of monoamine oxidase A (MAO-A) in the aggressiveness of prostate cancer (PCa) has been established in recent years. The molecular imaging of MAO-A expression could offer a noninvasive tool for the visualization and quantification of highly aggressive PCa. This study reports the synthesis and preclinical evaluation of 11C- and 18F-labeled MAO-A inhibitors as positron emission tomography (PET) tracers for proof-of-concept studies in animal models of PCa. Good manufacturing practice production and quality control of these radiotracers using an automated platform was achieved. PET imaging was performed in an LNCaP tumor model with high MAO-A expression. The tumor-to-muscle (T/M) uptake ratio of [11C]harmine (4.5 ± 0.5) was significantly higher than that for 2-[18F]fluoroethyl-harmol (2.3 ± 0.7) and [11C]clorgyline (2.0 ± 0.1). A comparable ex vivo biodistribution pattern in all radiotracers was observed. Furthermore, the tumor uptake of [11C]harmine showed a dramatic reduction (T/M = 1) in a PC3 tumor model with limited MAO-A expression, and radioactivity uptake in LNCaP tumors was blocked in the presence of nonradioactive harmine. Our findings suggest that [11C]harmine may serve as an attractive PET probe for the visualization of MAO-A expression in highly aggressive PCa. These radiotracers have the potential for clinical translation and may aid in the development of personalized therapeutic strategies for PCa patients.
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Affiliation(s)
- Kevin Zirbesegger
- Centro Uruguayo de Imagenología Molecular (CUDIM), Ricaldoni 2010, 11600 Montevideo, Uruguay
- Programa de Posgrado, Facultad de Química, Universidad de la República, Av. General Flores 2124, 11800 Montevideo, Uruguay
| | - Laura Reyes
- Centro Uruguayo de Imagenología Molecular (CUDIM), Ricaldoni 2010, 11600 Montevideo, Uruguay
| | - Andrea Paolino
- Centro Uruguayo de Imagenología Molecular (CUDIM), Ricaldoni 2010, 11600 Montevideo, Uruguay
| | - Rosina Dapueto
- Centro Uruguayo de Imagenología Molecular (CUDIM), Ricaldoni 2010, 11600 Montevideo, Uruguay
| | - Florencia Arredondo
- Centro Uruguayo de Imagenología Molecular (CUDIM), Ricaldoni 2010, 11600 Montevideo, Uruguay
| | - Juan P Gambini
- Centro Uruguayo de Imagenología Molecular (CUDIM), Ricaldoni 2010, 11600 Montevideo, Uruguay
| | - Eduardo Savio
- Centro Uruguayo de Imagenología Molecular (CUDIM), Ricaldoni 2010, 11600 Montevideo, Uruguay
| | - Williams Porcal
- Departamento de Química Orgánica, Facultad de Química, Universidad de la República, Av. General Flores 2124, 11800 Montevideo, Uruguay
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3
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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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4
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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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5
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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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6
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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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7
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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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8
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Ye D, Xu H, Tang Q, Xia H, Zhang C, Bi F. The role of 5-HT metabolism in cancer. Biochim Biophys Acta Rev Cancer 2021; 1876:188618. [PMID: 34428515 DOI: 10.1016/j.bbcan.2021.188618] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 02/07/2023]
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) metabolism has long been linked to tumorigenesis and tumor progression. Numerous studies have shown the functions of 5-HT and its metabolites in the regulation of tumor biological processes like cell proliferation, invasion, metastasis, tumor angiogenesis and immunomodulatory through multi-step complex mechanisms. Reprogramming of 5-HT metabolism has been revealed in various tumors paving way for development of drugs that target enzymes, metabolites or receptors involved in 5-HT metabolic pathway. However, information on the role of 5-HT metabolism in cancer is scanty. This review briefly describes the main metabolic routes of 5-HT, the role of 5-HT metabolism in cancer and systematically summarizes the most recent advances in 5-HT metabolism-targeted cancer therapy.
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Affiliation(s)
- Di Ye
- Department of Medical Oncology, Cancer Center and Laboratory of Molecular Targeted Therapy in Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan Province 610041, China
| | - Huanji Xu
- Department of Medical Oncology, Cancer Center and Laboratory of Molecular Targeted Therapy in Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan Province 610041, China
| | - Qiulin Tang
- Department of Medical Oncology, Cancer Center and Laboratory of Molecular Targeted Therapy in Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan Province 610041, China
| | - Hongwei Xia
- Department of Medical Oncology, Cancer Center and Laboratory of Molecular Targeted Therapy in Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan Province 610041, China
| | - Chenliang Zhang
- Department of Medical Oncology, Cancer Center and Laboratory of Molecular Targeted Therapy in Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan Province 610041, China
| | - Feng Bi
- Department of Medical Oncology, Cancer Center and Laboratory of Molecular Targeted Therapy in Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan Province 610041, China.
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9
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Wei J, Yin L, Li J, Wang J, Pu T, Duan P, Lin TP, Gao AC, Wu BJ. Bidirectional Cross-talk between MAOA and AR Promotes Hormone-Dependent and Castration-Resistant Prostate Cancer. Cancer Res 2021; 81:4275-4289. [PMID: 34167949 DOI: 10.1158/0008-5472.can-21-0198] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/12/2021] [Accepted: 06/21/2021] [Indexed: 01/03/2023]
Abstract
Androgen receptor (AR) is the primary oncogenic driver of prostate cancer, including aggressive castration-resistant prostate cancer (CRPC). The molecular mechanisms controlling AR activation in general and AR reactivation in CRPC remain elusive. Here we report that monoamine oxidase A (MAOA), a mitochondrial enzyme that degrades monoamine neurotransmitters and dietary amines, reciprocally interacts with AR in prostate cancer. MAOA was induced by androgens through direct AR binding to a novel intronic androgen response element of the MAOA gene, which in turn promoted AR transcriptional activity via upregulation of Shh/Gli-YAP1 signaling to enhance nuclear YAP1-AR interactions. Silencing MAOA suppressed AR-mediated prostate cancer development and growth, including CRPC, in mice. MAOA expression was elevated and positively associated with AR and YAP1 in human CRPC. Finally, genetic or pharmacologic targeting of MAOA enhanced the growth-inhibition efficacy of enzalutamide, darolutamide, and apalutamide in both androgen-dependent and CRPC cells. Collectively, these findings identify and characterize an MAOA-AR reciprocal regulatory circuit with coamplified effects in prostate cancer. Moreover, they suggest that cotargeting this complex may be a viable therapeutic strategy to treat prostate cancer and CRPC. SIGNIFICANCE: MAOA and AR comprise a positive feedback loop in androgen-dependent and CRPC, providing a mechanistic rationale for combining MAOA inhibition with AR-targeted therapies for prostate cancer treatment.
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Affiliation(s)
- Jing Wei
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington
| | - Lijuan Yin
- Uro-Oncology Research Program, Samuel Oschin Comprehensive Cancer Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Jingjing Li
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington
| | - Jing Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington
| | - Tianjie Pu
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington
| | - Peng Duan
- Uro-Oncology Research Program, Samuel Oschin Comprehensive Cancer Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Tzu-Ping Lin
- Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China.,Department of Urology, School of Medicine, Shu-Tien Urological Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan, Republic of China
| | - Allen C Gao
- Department of Urologic Surgery, University of California, Davis, Sacramento, California
| | - Boyang Jason Wu
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington.
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10
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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] [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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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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11
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Antonucci S, Di Sante M, Tonolo F, Pontarollo L, Scalcon V, Alanova P, Menabò R, Carpi A, Bindoli A, Rigobello MP, Giorgio M, Kaludercic N, Di Lisa F. The Determining Role of Mitochondrial Reactive Oxygen Species Generation and Monoamine Oxidase Activity in Doxorubicin-Induced Cardiotoxicity. Antioxid Redox Signal 2021; 34:531-550. [PMID: 32524823 PMCID: PMC7885901 DOI: 10.1089/ars.2019.7929] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Aims: Doxorubicin cardiomyopathy is a lethal pathology characterized by oxidative stress, mitochondrial dysfunction, and contractile impairment, leading to cell death. Although extensive research has been done to understand the pathophysiology of doxorubicin cardiomyopathy, no effective treatments are available. We investigated whether monoamine oxidases (MAOs) could be involved in doxorubicin-derived oxidative stress, and in the consequent mitochondrial, cardiomyocyte, and cardiac dysfunction. Results: We used neonatal rat ventricular myocytes (NRVMs) and adult mouse ventricular myocytes (AMVMs). Doxorubicin alone (i.e., 0.5 μM doxorubicin) or in combination with H2O2 induced an increase in mitochondrial formation of reactive oxygen species (ROS), which was prevented by the pharmacological inhibition of MAOs in both NRVMs and AMVMs. The pharmacological approach was supported by the genetic ablation of MAO-A in NRVMs. In addition, doxorubicin-derived ROS caused lipid peroxidation and alterations in mitochondrial function (i.e., mitochondrial membrane potential, permeability transition, redox potential), mitochondrial morphology (i.e., mitochondrial distribution and perimeter), sarcomere organization, intracellular [Ca2+] homeostasis, and eventually cell death. All these dysfunctions were abolished by MAO inhibition. Of note, in vivo MAO inhibition prevented chamber dilation and cardiac dysfunction in doxorubicin-treated mice. Innovation and Conclusion: This study demonstrates that the severe oxidative stress induced by doxorubicin requires the involvement of MAOs, which modulate mitochondrial ROS generation. MAO inhibition provides evidence that mitochondrial ROS formation is causally linked to all disorders caused by doxorubicin in vitro and in vivo. Based upon these results, MAO inhibition represents a novel therapeutic approach for doxorubicin cardiomyopathy.
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Affiliation(s)
| | - Moises Di Sante
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Federica Tonolo
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Laura Pontarollo
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Valeria Scalcon
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Petra Alanova
- Department of Biomedical Sciences, University of Padova, Padova, Italy.,Institute for Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Roberta Menabò
- Neuroscience Institute, National Research Council of Italy (CNR), Padova, Italy
| | - Andrea Carpi
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Alberto Bindoli
- Neuroscience Institute, National Research Council of Italy (CNR), Padova, Italy
| | | | - Marco Giorgio
- Department of Biomedical Sciences, University of Padova, Padova, Italy.,European Institute of Oncology (IEO), Milan, Italy
| | - Nina Kaludercic
- Neuroscience Institute, National Research Council of Italy (CNR), Padova, Italy
| | - Fabio Di Lisa
- Department of Biomedical Sciences, University of Padova, Padova, Italy.,Neuroscience Institute, National Research Council of Italy (CNR), Padova, Italy
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12
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Yu L, Wang M, Yang Y, Xu F, Zhang X, Xie F, Gao L, Li X. Predicting therapeutic drugs for hepatocellular carcinoma based on tissue-specific pathways. PLoS Comput Biol 2021; 17:e1008696. [PMID: 33561121 PMCID: PMC7920387 DOI: 10.1371/journal.pcbi.1008696] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 03/01/2021] [Accepted: 01/12/2021] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a significant health problem worldwide with poor prognosis. Drug repositioning represents a profitable strategy to accelerate drug discovery in the treatment of HCC. In this study, we developed a new approach for predicting therapeutic drugs for HCC based on tissue-specific pathways and identified three newly predicted drugs that are likely to be therapeutic drugs for the treatment of HCC. We validated these predicted drugs by analyzing their overlapping drug indications reported in PubMed literature. By using the cancer cell line data in the database, we constructed a Connectivity Map (CMap) profile similarity analysis and KEGG enrichment analysis on their related genes. By experimental validation, we found securinine and ajmaline significantly inhibited cell viability of HCC cells and induced apoptosis. Among them, securinine has lower toxicity to normal liver cell line, which is worthy of further research. Our results suggested that the proposed approach was effective and accurate for discovering novel therapeutic options for HCC. This method also could be used to indicate unmarked drug-disease associations in the Comparative Toxicogenomics Database. Meanwhile, our method could also be applied to predict the potential drugs for other types of tumors by changing the database.
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Affiliation(s)
- Liang Yu
- School of Computer Science and Technology, Xidian University, Shaanxi, China
| | - Meng Wang
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, 72, Jimo District, Qingdao, Shandong, China
| | - Yang Yang
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, 72, Jimo District, Qingdao, Shandong, China
| | - Fengdan Xu
- School of Computer Science and Technology, Xidian University, Shaanxi, China
| | - Xu Zhang
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, 72, Jimo District, Qingdao, Shandong, China
| | - Fei Xie
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, 72, Jimo District, Qingdao, Shandong, China
| | - Lin Gao
- School of Computer Science and Technology, Xidian University, Shaanxi, China
| | - Xiangzhi Li
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, 72, Jimo District, Qingdao, Shandong, China
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13
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Meenu M, Verma VK, Seth A, Sahoo RK, Gupta P, Arya DS. Association of Monoamine Oxidase A with Tumor Burden and Castration Resistance in Prostate Cancer. CURRENT THERAPEUTIC RESEARCH 2020; 93:100610. [PMID: 33245296 PMCID: PMC7674122 DOI: 10.1016/j.curtheres.2020.100610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 10/18/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Metastatic burden and aggressive behavior determine severity stratification and guide treatment decisions in prostate cancer (PCa). Monoamine oxidase A (MAOA) may promote tumor burden and drug/castration resistance in PCa. A positive association will pave the way for MAOA inhibitors such as moclobemide for PCa therapy. OBJECTIVE To analyze MAOA in peripheral blood mononuclear cells qualitatively and p38, c-Jun N-terminal kinases, nuclear factor kappa B, and their phosphorylated forms, vascular endothelial growth factor (angiogenesis), transforming growth factor beta, interleukin 6, and tumor necrosis factor-α (cytokines), Bcl-2 associated X, B-cell lymphoma 2, and P53 (apoptosis), prostate-specific membrane antigen, and epithelial cell adhesion molecules (surface markers) in plasma of patients with PCa. METHODS This was a 1-year pilot study in which patients with PCa were recruited and stratified into 2 groups and subgroups: treatment-naive with (M1) (n = 23) or without (M0) (n = 23) bone metastasis; hormone-sensitive prostate cancer (n = 26) or hormone/castration-resistant prostate cancer (n = 26). MAOA was detected using ELISA and other proteins were detected using immunoblotting technique. RESULTS MAOA was detected in 8.6% of M0 compared with 30.4% of M1 patients, and in 7.7% of hormone-sensitive compared with 27% of hormone/castration resistant PCa patients, associating it with bone metastasis and castration resistance. Multivariable regression analysis showed a correlation of MAOA with serum prostate-specific antigen, a marker for progression in PCa (Pearson correlation coefficient r = 0.30; P < 0.01). In patients with positive MAOA, there was overexpression of p38, phosphorylated-p38, c-Jun N-terminal kinases, phosphorylated c-Jun N-terminal kinases, nuclear factor kappa B, phosphorylated nuclear factor kappa B, transforming growth factor beta, vascular endothelial growth factor, interleukin 6, tumor necrosis factor α, Bcl-2 associated X, B-cell lymphoma 2, prostate-specific membrane antigen, and epithelial cell adhesion molecule in M1 compared with M0 group patients, associating these proteins with tumor burden. Overexpression of Bcl-2 associated X, tumor protein 53, c-Jun N-terminal kinases, nuclear factor kappa B, transforming growth factor beta, vascular endothelial growth factor, and prostate-specific membrane antigen and underexpression of B-cell lymphoma 2 and phosphorylated nuclear factor kappa B were observed in hormone-sensitive prostate cancer compared with hormone/castration-resistant prostate cancer, associating these proteins with castration resistance. CONCLUSIONS Association of key molecules of oncogenesis and metastasis with MAOA suggests that MAOA inhibitors such as moclobemide might be effective in the management of PCa.
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Affiliation(s)
- Meenakshi Meenu
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Vipin Kumar Verma
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Amlesh Seth
- Department of Urology, All India Institute of Medical Sciences, New Delhi, India
| | - Ranjit Kumar Sahoo
- Department of Medical Oncology, BRAIRCH, All India Institute of Medical Sciences, New Delhi, India
| | - Pooja Gupta
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Dharamvir Singh Arya
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
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14
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The Antiproliferative Effects of Flavonoid MAO Inhibitors on Prostate Cancer Cells. Molecules 2020; 25:molecules25092257. [PMID: 32403270 PMCID: PMC7249060 DOI: 10.3390/molecules25092257] [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: 04/12/2020] [Revised: 04/30/2020] [Accepted: 05/07/2020] [Indexed: 01/23/2023] Open
Abstract
Prostate cancer (PCa) patients commonly experience clinical depression. Recent reports indicated that monoamine oxidase-A (MAO-A) levels elevate in PCa, and antidepressant MAO-Is show anti-PCa properties. In this work, we aimed to find potential drugs for PCa patients suffering from depression by establishing novel anti-PCa reversible monoamine oxidase-A inhibitors (MAO-AIs/RIMA); with an endeavor to understand their mechanism of action. In this investigation, twenty synthesized flavonoid derivatives, defined as KKR compounds were screened for their inhibitory potentials against human MAO-A and MAO-B isozymes. Meanwhile, the cytotoxic and antiproliferative effects were determined in three human PCa cell lines. MAO-A-kinetics, molecular docking, SAR, cell morphology, and cell migration were investigated for the most potent compounds. The screened KKRs inhibited MAO-A more potently than MAO-B, and non-toxically inhibited LNCaP cell proliferation more than the DU145 and PC3 cell lines, respectively. The results showed that the three top MAO-AI KKRs compounds (KKR11, KKR20, and KKR7 (IC50s 0.02-16 μM) overlapped with the top six antiproliferative KKRs against LNCaP (IC50s ~9.4 μM). While KKR21 (MAO-AI) and KKR2A (MAO-I) were ineffective against the PCa cells. Furthermore, KKR21 and KKR11 inhibited MAO-A competitively (Kis ≤ 7.4 nM). Molecular docking of the two compounds predicted shared hydrophobic and distinctive hydrophilic interactions-between the KKR molecule and MAO-A amino acid residues-to be responsible for their reversibility. The combined results and SAR observations indicated that the presence of specific active groups-such as chlorine and hydroxyl groups-are essential in certain MAO-AIs with anti-PCa effects. Additionally, MAO-A inhibition was found to be associated more with anti-PCa property than MAO-B. Distinctively, KKR11 [(E)-3-(3,4-dichlorophenyl)-1-(2-hydroxy-4,6-dimethoxyphenyl)prop-2-en-1-one] exhibited anti-metastatic effects on the DU145 cell line. The chlorine substitution groups might play vital roles in the KKR11 multiple actions. The obtained results indicated that the flavonoid derivative KKR11 could present a novel candidate for PCa patients with depression, through safe non-selective potent inhibition of MAOs.
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15
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Zhang L, Pattanayak A, Li W, Ko HK, Fowler G, Gordon R, Bergan R. A Multifunctional Therapy Approach for Cancer: Targeting Raf1- Mediated Inhibition of Cell Motility, Growth, and Interaction with the Microenvironment. Mol Cancer Ther 2019; 19:39-51. [PMID: 31582531 DOI: 10.1158/1535-7163.mct-19-0222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/17/2019] [Accepted: 09/26/2019] [Indexed: 11/16/2022]
Abstract
Prostate cancer cells move from their primary site of origin, interact with a distant microenvironment, grow, and thereby cause death. It had heretofore not been possible to selectively inhibit cancer cell motility. Our group has recently shown that inhibition of intracellular activation of Raf1 with the small-molecule therapeutic KBU2046 permits, for the first time, selective inhibition of cell motility. We hypothesized that simultaneous disruption of multiple distinct functions that drive progression of prostate cancer to induce death would result in advanced disease control. Using a murine orthotopic implantation model of human prostate cancer metastasis, we demonstrate that combined treatment with KBU2046 and docetaxel retains docetaxel's antitumor action, but provides improved inhibition of metastasis, compared with monotherapy. KBU2046 does not interfere with hormone therapy, inclusive of enzalutamide-mediated inhibition of androgen receptor (AR) function and cell growth inhibition, and inclusive of the ability of castration to inhibit LNCaP-AR cell outgrowth in mice. Cell movement is necessary for osteoclast-mediated bone degradation. KBU2046 inhibits Raf1 and its downstream activation of MEK1/2 and ERK1/2 in osteoclasts, inhibiting cytoskeleton rearrangement, resorptive cavity formation, and bone destruction in vitro, with improved effects observed when the bone microenvironment is chemically modified by pretreatment with zoledronic acid. Using a murine cardiac injection model of human prostate cancer bone destruction quantified by CT, KBU2046 plus zoledronic exhibit improved inhibitory efficacy, compared with monotherapy. The combined disruption of pathways that drive cell movement, interaction with bone, and growth constitutes a multifunctional targeting strategy that provides advanced disease control.
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Affiliation(s)
- Limin Zhang
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon.,Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Abhinandan Pattanayak
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon
| | - Wenqi Li
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon
| | - Hyun-Kyung Ko
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon
| | - Graham Fowler
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon
| | - Ryan Gordon
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon
| | - Raymond Bergan
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon.
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16
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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: 26] [Impact Index Per Article: 5.2] [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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17
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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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18
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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: 62] [Impact Index Per Article: 10.3] [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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Lv Q, Yang X, Wang M, Yang J, Qin Z, Kan Q, Zhang H, Wang Y, Wang D, He Z. Mitochondria-targeted prostate cancer therapy using a near-infrared fluorescence dye–monoamine oxidase A inhibitor conjugate. J Control Release 2018; 279:234-242. [DOI: 10.1016/j.jconrel.2018.04.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 03/23/2018] [Accepted: 04/18/2018] [Indexed: 10/17/2022]
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20
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MAOA-a novel decision maker of apoptosis and autophagy in hormone refractory neuroendocrine prostate cancer cells. Sci Rep 2017; 7:46338. [PMID: 28402333 PMCID: PMC5389346 DOI: 10.1038/srep46338] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 03/15/2017] [Indexed: 12/13/2022] Open
Abstract
Autophagy and apoptosis are two well-controlled mechanisms regulating cell fate. An understanding of decision-making between these two pathways is in its infancy. Monoamine oxidase A (MAOA) is a mitochondrial enzyme that is well-known in psychiatric research. Emerging reports showed that overexpression MAOA is associated with prostate cancer (PCa). Here, we show that MAOA is involved in mediating neuroendocrine differentiation of PCa cells, a feature associated with hormone-refractory PCa (HRPC), a lethal type of disease. Following recent reports showing that NED of PCa requires down-regulation of repressor element-1 silencing transcription factor (REST) and activation of autophagy; we observe that MAOA is a novel direct target gene of REST. Reactive oxygen species (ROS) produced by overexpressed MAOA plays an essential role in inhibiting apoptosis and activating autophagy in NED PCa cells. MAOA inhibitors significantly reduced NED and autophagy activation of PCa cells. Our results here show MAOA as a new decision-maker for activating autophagy and MAOA inhibitors may be useful as a potential therapy for neuroendocrine tumors.
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Abstract
In this issue of Cancer Cell, Wu et al. identify MAOA as a key mediator of osteolytic bone responses that involve complex paracrine interactions between tumor cells, osteoblasts, and osteoclasts. Pharmacological inhibition of MAOA enzymatic activity effectively interrupted osteolysis and metastatic progression in preclinical models, suggesting a new treatment opportunity.
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Affiliation(s)
- Michael D Nyquist
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Peter S Nelson
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA 98195, USA.
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22
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Gupta S, Li J, Kemeny G, Bitting RL, Beaver J, Somarelli JA, Ware KE, Gregory S, Armstrong AJ. Whole Genomic Copy Number Alterations in Circulating Tumor Cells from Men with Abiraterone or Enzalutamide-Resistant Metastatic Castration-Resistant Prostate Cancer. Clin Cancer Res 2016; 23:1346-1357. [DOI: 10.1158/1078-0432.ccr-16-1211] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/22/2016] [Accepted: 08/25/2016] [Indexed: 11/16/2022]
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23
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Hariri W, Sudha T, Bharali DJ, Cui H, Mousa SA. Nano-Targeted Delivery of Toremifene, an Estrogen Receptor-α Blocker in Prostate Cancer. Pharm Res 2015; 32:2764-74. [PMID: 25762087 DOI: 10.1007/s11095-015-1662-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 03/02/2015] [Indexed: 01/19/2023]
Abstract
PURPOSE Estrogen Receptor-α (ERα) expression is increased in prostate cancer and acts as an oncogene. We propose that blocking of estrogen hormone binding to ERα using the ERα blocker toremifene will reduce the tumorigenicity of prostate cancer, and nano-targeted delivery of toremifene will improve anticancer efficacy. We report the synthesis and use in an orthotopic mouse model of PLGA-PEG nanoparticles encapsulating toremifene and nanoparticles encapsulating toremifene that are also conjugated to anti-PSMA for targeted prostate tumor delivery. METHODS Human prostate cancer cell line PC3M and a nude mouse model were used to test efficacy of nano-targeted and nano-encapsulated toremifene versus free toremifene on the growth and differentiation of tumor cells. RESULTS Treatment with free toremifene resulted in a significant reduction in growth of prostate tumor and proliferation, and its nano-targeting resulted in greater reduction of prostate tumor growth, greater toremifene tumor uptake, and enhanced tumor necrosis. Tumors from animals treated with nano-encapsulated toremifene conjugated with anti-PSMA showed about a 15-fold increase of toremifene compared to free toremifene. CONCLUSIONS Our data provide evidence that blocking ERα by toremifene and targeting prostate cancer tissues with anti-PSMA antibody on the nanoparticles' surface repressed the tumorigenicity of prostate cancer cells in this mouse model.
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Affiliation(s)
- Waseem Hariri
- The Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, 1 Discovery Drive, Rensselaer, New York, 12144, USA
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24
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Wu JB, Lin TP, Gallagher JD, Kushal S, Chung LWK, Zhau HE, Olenyuk BZ, Shih JC. Monoamine oxidase A inhibitor-near-infrared dye conjugate reduces prostate tumor growth. J Am Chem Soc 2015; 137:2366-74. [PMID: 25585152 DOI: 10.1021/ja512613j] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Development of anti-cancer agents with high tumor-targeting specificity and efficacy is critical for modern multidisciplinary cancer research. Monoamine oxidase A (MAOA), a mitochondria-bound enzyme, degrades monoamine neurotransmitters and dietary monoamines. Recent evidence suggests a correlation between increased MAOA expression and prostate cancer (PCa) progression with poor outcomes for patients. MAOA induces epithelial-mesenchymal transition (EMT) and augments hypoxic effects by producing excess reactive oxygen species. Thus, development of MAOA inhibitors which selectively target tumors becomes an important goal in cancer pharmacology. Here we describe the design, synthesis, and in vitro and in vivo evaluation of NMI, a conjugate that combines a near-infrared dye for tumor targeting with the moiety derived from the MAOA inhibitor clorgyline. NMI inhibits MAOA with low micromolar IC50, suppresses PCa cell proliferation and colony formation, and reduces migration and invasion. In mouse PCa xenografts, NMI targets tumors with no detectable accumulation in normal tissues, providing effective reduction of the tumor burden. Analysis of tumor specimens shows reduction in Ki-67(+) and CD31(+) cells, suggesting a decrease of cell proliferation and angiogenesis and an increase in M30(+) cells, indicating increased apoptosis. Gene expression profiles of tumors treated with NMI demonstrate reduced expression of oncogenes FOS, JUN, NFKB, and MYC and cell cycle regulators CCND1, CCNE1, and CDK4/6, along with increases in the levels of tumor suppressor gene TP53, cell cycle inhibitors CDKN1A and CDKN2A, and MAOA-downstream genes that promote EMT, tumor hypoxia, cancer cell migration, and invasion. These data suggest that NMI exerts its effect through tumor-targeted delivery of a MAOA-inactivating group, making NMI a valuable anti-tumor agent.
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Affiliation(s)
- Jason Boyang Wu
- Uro-Oncology Research Program, Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center , Los Angeles, California 90048, United States
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