1
|
Mu H, Ye L, Wang B. Detailed resume of S-methyltransferases: Categories, structures, biological functions and research advancements in related pathophysiology and pharmacotherapy. Biochem Pharmacol 2024; 226:116361. [PMID: 38876259 DOI: 10.1016/j.bcp.2024.116361] [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: 03/05/2024] [Revised: 05/19/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
Methylation is a vital chemical reaction in the metabolism of many drugs, neurotransmitters, hormones, and exogenous compounds. Among them, S-methylation plays a significant role in the biotransformation of sulfur-containing compounds, particularly chemicals with sulfhydryl groups. Currently, only three S-methyltransferases have been reported: thiopurine methyltransferase (TPMT), thiol methyltransferase (TMT), and thioether methyltransferase (TEMT). These enzymes are involved in various biological processes such as gene regulation, signal transduction, protein repair, tumor progression, and biosynthesis and degradation reactions in animals, plants, and microorganisms. Furthermore, they play pivotal roles in the metabolic pathways of essential drugs and contribute to the advancement of diseases such as tumors. This paper reviews the research progress on relevant structural features, metabolic mechanisms, inhibitor development, and influencing factors (gene polymorphism, S-adenosylmethionine level, race, sex, age, and disease) of S-methyltransferases. We hope that a better comprehension of S-methyltransferases will help to provide a reference for the development of novel strategies for related disorders and improve long-term efficacy.
Collapse
Affiliation(s)
- Hongfei Mu
- Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China.
| | - Lisha Ye
- Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China.
| | - Baolian Wang
- Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China.
| |
Collapse
|
2
|
Yu M, Xu J, Dutta R, Trapp B, Pieper AA, Cheng F. Network medicine informed multi-omics integration identifies drug targets and repurposable medicines for Amyotrophic Lateral Sclerosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.27.586949. [PMID: 38585774 PMCID: PMC10996626 DOI: 10.1101/2024.03.27.586949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Amyotrophic Lateral Sclerosis (ALS) is a devastating, immensely complex neurodegenerative disease by lack of effective treatments. To date, the challenge to establishing effective treatment for ALS remains formidable, partly due to inadequate translation of existing human genetic findings into actionable ALS-specific pathobiology for subsequent therapeutic development. This study evaluates the feasibility of network medicine methodology via integrating human brain-specific multi-omics data to prioritize drug targets and repurposable treatments for ALS. Using human brain-specific genome-wide quantitative trait loci (x-QTLs) under a network-based deep learning framework, we identified 105 putative ALS-associated genes enriched in various known ALS pathobiological pathways, including regulation of T cell activation, monocyte differentiation, and lymphocyte proliferation. Specifically, we leveraged non-coding ALS loci effects from genome-wide associated studies (GWAS) on brain-specific expression quantitative trait loci (QTL) (eQTL), protein QTLs (pQTL), splicing QTL (sQTL), methylation QTL (meQTL), and histone acetylation QTL (haQTL). Applying network proximity analysis of predicted ALS-associated gene-coding targets and existing drug-target networks under the human protein-protein interactome (PPI) model, we identified a set of potential repurposable drugs (including Diazoxide, Gefitinib, Paliperidone, and Dimethyltryptamine) for ALS. Subsequent validation established preclinical and clinical evidence for top-prioritized repurposable drugs. In summary, we presented a network-based multi-omics framework to identify potential drug targets and repurposable treatments for ALS and other neurodegenerative disease if broadly applied.
Collapse
Affiliation(s)
- Mucen Yu
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- College of Arts and Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Jielin Xu
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Ranjan Dutta
- Department of Neuroscience, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Bruce Trapp
- Department of Neuroscience, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Andrew A. Pieper
- Harrington Discovery Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106, USA
- Geriatric Psychiatry, GRECC, Louis Stokes Cleveland VA Medical Center; Cleveland, OH 44106, USA
- Institute for Transformative Molecular Medicine, School of Medicine, Case Western Reserve University, Cleveland 44106, OH, USA
- Department of Neuroscience, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA
| | - Feixiong Cheng
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine
- Cleveland Clinic Genome Center, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| |
Collapse
|
3
|
Sen AK, Jones JA. Unlocking the biosynthesis of psychedelic-inspired indolethylamines. Trends Biochem Sci 2024; 49:189-191. [PMID: 38160063 DOI: 10.1016/j.tibs.2023.12.009] [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: 12/15/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
A recent report by Chen et al. describes the discovery of RmNMT, a highly active and promiscuous tryptamine N-methyltransferase from the cane toad, Rhinella marina. N,N-dimethyltryptamine derivatives produced by this enzyme were then evaluated for their potential to serve as next-generation treatments for mental health disorders.
Collapse
Affiliation(s)
- Abhishek K Sen
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, OH 45056, USA
| | - J Andrew Jones
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, OH 45056, USA.
| |
Collapse
|
4
|
Coutinho LP, Silva SRB, de Lima-Neto P, Monteiro NDKV. A mechanistic insight for the biosynthesis of N,N-dimethyltryptamine: An ONIOM theoretical approach. Biochem Biophys Res Commun 2023; 678:148-157. [PMID: 37640000 DOI: 10.1016/j.bbrc.2023.08.043] [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: 06/09/2023] [Revised: 07/31/2023] [Accepted: 08/18/2023] [Indexed: 08/31/2023]
Abstract
Psychoactive natural products are potent serotonergic agonists capable of modulating brain functions such as memory and cognition. These substances have shown therapeutic potential for treating various mental disorders. The fact that N,N-dimethyltryptamine (DMT) is produced endogenously in several plants and animals, including humans, makes it particularly attractive. As an amino acid-derived alkaloid, the DMT biosynthetic pathway is part of the L-tryptophan biochemical cascade and can be divided into the decarboxylation by an aromatic L-amino acid decarboxylase (AADC) for tryptamine formation and the subsequent double-methylation by the indolethylamine-N-methyltransferase (INMT) through the cofactor S-adenosyl-L-methionine (SAM), a methyl donor. Unlike the decarboxylation mechanism of L-tryptophan, the molecular details of the double methylation of tryptamine have not been elucidated. Therefore, we propose an in silico model using molecular dynamics (MD), non-covalent interaction index (NCI) and density functional theory (DFT) calculations with the ONIOM QM:MM B3LYP/6-31+G(d,p):MM/UFF level of theory. Based on the obtained energetic data, the potential energy surface (PES) indicates an SN2 mechanism profile, with the second methylation energy barrier being the rate-limiting step with δG‡=60kJ∙mol-1 larger than the previous methylation, following the NCI analysis showing more repulsive interactions for the second transition state. In addition, the hybridization information of each reaction step provides geometric details about the double-methylation.
Collapse
Affiliation(s)
- Lucas Pinheiro Coutinho
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, 60021-970, Fortaleza, CE, Brazil
| | | | - Pedro de Lima-Neto
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, 60021-970, Fortaleza, CE, Brazil
| | - Norberto de Kássio Vieira Monteiro
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, 60021-970, Fortaleza, CE, Brazil.
| |
Collapse
|
5
|
Chen X, Li J, Yu L, Maule F, Chang L, Gallant JA, Press DJ, Raithatha SA, Hagel JM, Facchini PJ. A cane toad (Rhinella marina) N-methyltransferase converts primary indolethylamines to tertiary psychedelic amines. J Biol Chem 2023; 299:105231. [PMID: 37690691 PMCID: PMC10570959 DOI: 10.1016/j.jbc.2023.105231] [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: 06/08/2023] [Revised: 08/31/2023] [Accepted: 09/03/2023] [Indexed: 09/12/2023] Open
Abstract
Psychedelic indolethylamines have emerged as potential medicines to treat several psychiatric pathologies. Natural sources of these compounds include 'magic mushrooms' (Psilocybe spp.), plants used to prepare ayahuasca, and toads. The skin and parotid glands of certain toads accumulate a variety of specialized metabolites including toxic guanidine alkaloids, lipophilic alkaloids, poisonous steroids, and hallucinogenic indolethylamines such as DMT, 5-methoxy-DMT, and bufotenin. The occurrence of psychedelics has contributed to the ceremonial use of toads, particularly among Mesoamerican peoples. Yet, the biosynthesis of psychedelic alkaloids has not been elucidated. Herein, we report a novel indolethylamine N-methyltransferase (RmNMT) from cane toad (Rhinella marina). The RmNMT sequence was used to identify a related NMT from the common toad, Bufo bufo. Close homologs from various frog species were inactive, suggesting a role for psychedelic indolethylamine biosynthesis in toads. Enzyme kinetic analyses and comparison with functionally similar enzymes showed that recombinant RmNMT was an effective catalyst and not product inhibited. The substrate promiscuity of RmNMT enabled the bioproduction of a variety of substituted indolethylamines at levels sufficient for purification, pharmacological screening, and metabolic stability assays. Since the therapeutic potential of psychedelics has been linked to activity at serotonergic receptors, we evaluated binding of derivatives at 5-HT1A and 5-HT2A receptors. Primary amines exhibited enhanced affinity at the 5-HT1A receptor compared with tertiary amines. With the exception of 6-substituted derivatives, N,N-dimethylation also protected against catabolism by liver microsomes.
Collapse
Affiliation(s)
- Xue Chen
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | - Jing Li
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | - Lisa Yu
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | - Francesca Maule
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Limei Chang
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | | | - David J Press
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | | | - Jillian M Hagel
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | - Peter J Facchini
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada; Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada.
| |
Collapse
|
6
|
Zhang AA, He QL, Zhao Q. Mining and Characterization of Indolethylamine N-Methyltransferases in Amphibian Toad Bufo gargarizans. Biochemistry 2023; 62:2371-2381. [PMID: 37490721 DOI: 10.1021/acs.biochem.3c00229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Strong, psychedelic indolethylamines (IAAs) are typically present in trace amounts in the majority of species, but they build up significantly in the skin of amphibian toads, especially N-methylated 5-hydroxytryptamine (5-HT) analogues. However, there is no pertinent research on the investigation of indoleamine N-methyltransferase (INMT) in amphibians, nor is there any adequate information on the key amino acids that influence the activity of known INMTs from other species. Herein, we focused on Bufo toad INMT (BINMT) for the first time and preliminarily identified BINMT 1 from the transcriptomes of Bufo gargarizans active on tryptamine, 5-HT, and N-methyl-5-HT. We established the enzyme kinetic characteristics of BINMT 1 and identified the essential amino acids influencing its activity via molecular docking and site-directed mutagenesis. Subsequently, we carried out sequence alignment and phylogenetic tree analysis on 43 homologous proteins found in the genome of B. gargarizans with BINMT 1 as the probe and selected seven of them for protein expression and activity assays. It was found that only three proteins possessing the highest similarity to BINMT 1 had INMT activity. Our research unveils the binding residues of BINMT for 5-HT analogues for the first time and initiates the study of INMTs in amphibian toads, serving as a tentative reference for further study of BINMT and providing insight into the comprehension of BINMT's catalytic mechanism and its role in the biosynthesis of 5-HT analogues in Bufo toads. It also contributes to the expansion of the INMT library to help explore and explain interspecies evolution in the future.
Collapse
Affiliation(s)
- An-An Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Qing-Li He
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Qunfei Zhao
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| |
Collapse
|
7
|
Friedberg LM, Sen AK, Nguyen Q, Tonucci GP, Hellwarth EB, Gibbons WJ, Jones JA. "In vivo biosynthesis of N,N-dimethyltryptamine, 5-MeO-N,N-dimethyltryptamine, and bufotenine in E.coli". Metab Eng 2023; 78:61-71. [PMID: 37230161 DOI: 10.1016/j.ymben.2023.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/15/2023] [Accepted: 05/22/2023] [Indexed: 05/27/2023]
Abstract
N,N-dimethyltryptamine (DMT), 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) and 5-hydroxy-N,N-dimethyltryptamine (bufotenine) are psychedelic tryptamines found naturally in both plants and animals and have shown clinical potential to help treat mental disorders, such as anxiety and depression. Advances in both metabolic and genetic engineering make it possible to engineer microbes as cell factories to produce DMT and its aforementioned derivatives to meet demand for ongoing clinical study. Here, we present the development of a biosynthetic production pathway for DMT, 5-MeO-DMT, and bufotenine in the model microbe Escherichia coli. Through the application of genetic optimization techniques and process optimization in benchtop fermenters, the in vivo production of DMT in E. coli was observed. DMT production with tryptophan supplementation reached maximum titers of 74.7 ± 10.5 mg/L under fed batch conditions in a 2-L bioreactor. Additionally, we show the first reported case of de novo production of DMT (from glucose) in E. coli at a maximum titer of 14.0 mg/L and report the first example of microbial 5-MeO-DMT and bufotenine production in vivo. This work provides a starting point for further genetic and fermentation optimization studies with the goal to increase methylated tryptamine production metrics to industrially competitive levels.
Collapse
Affiliation(s)
- Lucas M Friedberg
- Miami University, Department of Chemical, Paper, and Biomedical Engineering, Oxford, OH, 45056, USA.
| | - Abhishek K Sen
- Miami University, Department of Chemical, Paper, and Biomedical Engineering, Oxford, OH, 45056, USA.
| | - Quynh Nguyen
- Miami University, Department of Chemical, Paper, and Biomedical Engineering, Oxford, OH, 45056, USA.
| | - Gabriel P Tonucci
- Miami University, Department of Microbiology, Oxford, OH, 45056, USA.
| | - Elle B Hellwarth
- Miami University, Department of Chemical, Paper, and Biomedical Engineering, Oxford, OH, 45056, USA.
| | - William J Gibbons
- Miami University, Department of Chemical, Paper, and Biomedical Engineering, Oxford, OH, 45056, USA.
| | - J Andrew Jones
- Miami University, Department of Chemical, Paper, and Biomedical Engineering, Oxford, OH, 45056, USA.
| |
Collapse
|
8
|
Sun H, Long J, Zuo B, Li Y, Song Y, Yu M, Xun Z, Wang Y, Wang X, Sang X, Zhao H. Development and validation of a selenium metabolism regulators associated prognostic model for hepatocellular carcinoma. BMC Cancer 2023; 23:451. [PMID: 37202783 PMCID: PMC10197375 DOI: 10.1186/s12885-023-10944-w] [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: 12/30/2022] [Accepted: 05/10/2023] [Indexed: 05/20/2023] Open
Abstract
BACKGROUND Selenium metabolism has been implicated in human health. This study aimed to identify a selenium metabolism regulator-based prognostic signature for hepatocellular carcinoma (HCC) and validate the role of INMT in HCC. METHODS Transcriptome sequencing data and clinical information related to selenium metabolism regulators in TCGA liver cancer dataset were analysed. Next, a selenium metabolism model was constructed by multiple machine learning algorithms, including univariate, least absolute shrinkage and selection operator, and multivariate Cox regression analyses. Then, the potential of this model for predicting the immune landscape of different risk groups was evaluated. Finally, INMT expression was examined in different datasets. After knockdown of INMT, cell proliferation and colony formation assays were conducted. RESULTS A selenium metabolism model containing INMT and SEPSECS was established and shown to be an independent predictor of prognosis. The survival time of low-risk patients was significantly longer than that of high-risk patients. These two groups had different immune environments. In different datasets, including TCGA, GEO, and our PUMCH dataset, INMT was significantly downregulated in HCC tissues. Moreover, knockdown of INMT significantly promoted HCC cell proliferation. CONCLUSIONS The current study established a risk signature of selenium metabolism regulators for predicting the prognosis of HCC patients. INMT was identified as a biomarker for poor prognosis of HCC.
Collapse
Affiliation(s)
- Huishan Sun
- Department of Liver Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Junyu Long
- Department of Liver Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Bangyou Zuo
- Department of Hepatobiliary Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China Chengdu, Sichuan, China
| | - Yiran Li
- Department of Liver Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yu Song
- Department of Allergy, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Minghang Yu
- Beijing Institute of Infectious Diseases, Beijing, China
- Institute of Infectious Diseases, Beijing Key Laboratory of Emerging Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ziyu Xun
- Department of Liver Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yanyu Wang
- Department of Liver Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xi Wang
- Beijing Institute of Infectious Diseases, Beijing, China.
- Institute of Infectious Diseases, Beijing Key Laboratory of Emerging Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China.
| | - Xinting Sang
- Department of Liver Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Haitao Zhao
- Department of Liver Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| |
Collapse
|
9
|
Naeem M, Anas NA, Chadeayne AR, Golen JA, Manke DR. N-Methyl-serotonin hydrogen oxalate. IUCRDATA 2023; 8:x230378. [PMID: 37287863 PMCID: PMC10242732 DOI: 10.1107/s2414314623003784] [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: 04/21/2023] [Accepted: 04/26/2023] [Indexed: 06/09/2023] Open
Abstract
The solid-state structure of N-methyl-serotonin {systematic name: [2-(5-hy-droxy-1H-indol-3-yl)eth-yl](meth-yl)aza-nium hydrogen oxalate}, C11H15N2O+·C2HO4 -, is reported. The structure possesses a singly protonated N-methylserotonin cation and one hydrogen oxalate anion in the asymmetric unit. In the crystal, the mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds into a three-dimensional network.
Collapse
Affiliation(s)
- Marilyn Naeem
- University of Massachusetts Dartmouth, 285 Old Westport Road, North Dartmouth, MA 02747, USA
| | - Nicholas A. Anas
- CaaMTech, Inc., 58 East Sunset Way, Suite 209, Issaquah, WA 98027, USA
| | | | - James A. Golen
- University of Massachusetts Dartmouth, 285 Old Westport Road, North Dartmouth, MA 02747, USA
| | - David R. Manke
- University of Massachusetts Dartmouth, 285 Old Westport Road, North Dartmouth, MA 02747, USA
| |
Collapse
|
10
|
Zhou X, Zou B, Wang J, Wu L, Tan Q, Ji C. Low expression of INMT is associated with poor prognosis but favorable immunotherapy response in lung adenocarcinoma. Front Genet 2022; 13:946848. [DOI: 10.3389/fgene.2022.946848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 10/25/2022] [Indexed: 11/11/2022] Open
Abstract
Background: The expression of INMT (indolethylamine N-methyltransferase) has been reported to be downregulated in non-small-cell lung cancer (NSCLC). However, the role of INMT in NSCLC remains elusive. We aim to investigate the underlying mechanisms and clinical value of INMT in NSCLC, especially in lung adenocarcinoma (LUAD).Methods: Gene expression cohorts from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) were analyzed to assess the effect of INMT on NSCLC. Gene expression data from an immunotherapy cohort were used to investigate the association of INMT with immunotherapy in NSCLC.Results: INMT expression was significantly downregulated in NSCLC compared with adjacent normal tissues. Downregulated INMT was associated with poor overall survival in LUAD, but not in lung squamous carcinoma. Multivariate Cox regression analysis suggested that INMT was an independent prognostic marker in LUAD. INMT had a reference value in the diagnosis and prognostic estimation of LUAD. Gene set enrichment analysis showed that pathways of the cell cycle and DNA damage response were enriched in the INMT low-expression group. The top 10 hub genes upregulated in the INMT low-expression group mainly activated the cell cycle pathway. In addition, more frequently mutated TP53 genes, higher aneuploidy scores, a fraction of genomes altered, MANTIS scores, and tumor mutation burden were found in tumors with low expression of INMT. Furthermore, patients with low expression of INMT showed favorable clinical benefits to anti-PD-1 treatment with higher enrichment scores of immune-related signatures.Conclusion: The low expression of INMT was associated with poor prognosis but favorable immunotherapy response in LUAD. INMT may affect the progression of LUAD by regulating the cell cycle and may serve as a valuable independent prognostic biomarker in patients with LUAD.
Collapse
|
11
|
Abstract
N,N-dimethyltryptamine (DMT) is a potent psychedelic naturally produced by many plants and animals, including humans. Whether or not DMT is significant to mammalian physiology, especially within the central nervous system, is a debate that started in the early 1960s and continues to this day. This review integrates historical and recent literature to clarify this issue, giving special attention to the most controversial subjects of DMT's biosynthesis, its storage in synaptic vesicles and the activation receptors like sigma-1. Less discussed topics, like DMT's metabolic regulation or the biased activation of serotonin receptors, are highlighted. We conclude that most of the arguments dismissing endogenous DMT's relevance are based on obsolete data or misleading assumptions. Data strongly suggest that DMT can be relevant as a neurotransmitter, neuromodulator, hormone and immunomodulator, as well as being important to pregnancy and development. Key experiments are addressed to definitely prove what specific roles DMT plays in mammalian physiology.
Collapse
Affiliation(s)
- Javier Hidalgo Jiménez
- ICEERS Foundation (International Center for Ethnobotanical Education, Research and Services), Barcelona, Spain
| | - José Carlos Bouso
- ICEERS Foundation (International Center for Ethnobotanical Education, Research and Services), Barcelona, Spain
| |
Collapse
|
12
|
López-Torres CD, Torres-Mena JE, Castro-Gil MP, Villa-Treviño S, Arellanes-Robledo J, Del Pozo-Yauner L, Pérez-Carreón JI. Downregulation of Indolethylamine N-methyltransferase is an early event in the rat hepatocarcinogenesis and is associated with poor prognosis in hepatocellular carcinoma patients. J Gene Med 2022; 24:e3439. [PMID: 35816441 DOI: 10.1002/jgm.3439] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/25/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the deadliest cancers worldwide, often preceded by cirrhosis and usually diagnosed at advanced stages; therefore, identifying molecular changes at early stages is an attractive strategy for detection and timely treatment. Here, we investigated the progressive transcriptomic changes during experimental hepatocarcinogenesis to identify novel early tumor markers in an HCC model induced by chronic administration of sublethal doses of diethylnitrosamine. An analysis of differentially expressed genes showed that four processes associated with oxidation-reduction and detoxification were significantly overrepresented during hepatocarcinogenesis progression, of which the Nuclear Factor, Erythroid 2 Like 2 (NRF2) pathway showed several dysregulated genes. Interestingly, we also identified 91 genes dysregulated at early HCC stages, but the expression of the indolethylamine N-methyltransferase gene (Inmt), as well as the level of its encoding protein, were strongly downregulated. INMT was increased in perivenular hepatocytes of normal livers but decreased in livers of experimental HCC. Furthermore, a gene expression and survival analysis performed using data from the liver hepatocellular carcinoma project of The Cancer Genome Atlas Program revealed that INMT is also significantly downregulated in human HCC and is associated with poor overall survival. In conclusion, by performing a transcriptome analysis of the HCC progression, we identified that INMT is early downregulated in the rat hepatocarcinogenesis and is associated with poor prognosis in human HCC, suggesting that INMT downregulation may be a promising prognostic marker for HCC in high-risk populations.
Collapse
Affiliation(s)
- Carlos David López-Torres
- Laboratorio de Enfermedades Hepáticas. Instituto Nacional de Medicina Genómica. Ciudad de México, México
| | | | - María Paulette Castro-Gil
- Laboratorio de Enfermedades Hepáticas. Instituto Nacional de Medicina Genómica. Ciudad de México, México
| | - Saúl Villa-Treviño
- Departamento de Biología Celular. Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional. Ciudad de México, México
| | - Jaime Arellanes-Robledo
- Laboratorio de Enfermedades Hepáticas. Instituto Nacional de Medicina Genómica. Ciudad de México, México.,Dirección de Cátedras. Consejo Nacional de Ciencia y Tecnología. Ciudad de México, México
| | - Luis Del Pozo-Yauner
- Department of Pathology, College of Medicine, University of South Alabama. Alabama, USA
| | - Julio Isael Pérez-Carreón
- Laboratorio de Enfermedades Hepáticas. Instituto Nacional de Medicina Genómica. Ciudad de México, México
| |
Collapse
|
13
|
James E, Keppler J, L Robertshaw T, Sessa B. N,N-dimethyltryptamine and Amazonian ayahuasca plant medicine. Hum Psychopharmacol 2022; 37:e2835. [PMID: 35175662 PMCID: PMC9286861 DOI: 10.1002/hup.2835] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/13/2022] [Accepted: 01/26/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Reports have indicated possible uses of ayahuasca for the treatment of conditions including depression, addictions, post-traumatic stress disorder, anxiety and specific psychoneuroendocrine immune system pathologies. The article assesses potential ayahuasca and N,N-dimethyltryptamine (DMT) integration with contemporary healthcare. The review also seeks to provide a summary of selected literature regarding the mechanisms of action of DMT and ayahuasca; and assess to what extent the state of research can explain reports of unusual phenomenology. DESIGN A narrative review. RESULTS Compounds in ayahuasca have been found to bind to serotonergic receptors, glutaminergic receptors, sigma-1 receptors, trace amine-associated receptors, and modulate BDNF expression and the dopaminergic system. Subjective effects are associated with increased delta and theta oscillations in amygdala and hippocampal regions, decreased alpha wave activity in the default mode network, and stimulations of vision-related brain regions particularly in the visual association cortex. Both biological processes and field of consciousness models have been proposed to explain subjective effects of DMT and ayahuasca, however, the evidence supporting the proposed models is not sufficient to make confident conclusions. Ayahuasca plant medicine and DMT represent potentially novel treatment modalities. CONCLUSIONS Further research is required to clarify the mechanisms of action and develop treatments which can be made available to the general public. Integration between healthcare research institutions and reputable practitioners in the Amazon is recommended.
Collapse
Affiliation(s)
- Edward James
- School of Pharmacy and Pharmaceutical SciencesCardiff UniversityCardiffUK
| | | | | | - Ben Sessa
- Centre for NeuropsychopharmacologyDivision of Brain SciencesFaculty of MedicineImperial College LondonLondonUK
| |
Collapse
|
14
|
Jianfeng W, Yutao W, Jianbin B. Indolethylamine-N-Methyltransferase Inhibits Proliferation and Promotes Apoptosis of Human Prostate Cancer Cells: A Mechanistic Exploration. Front Cell Dev Biol 2022; 10:805402. [PMID: 35252179 PMCID: PMC8891133 DOI: 10.3389/fcell.2022.805402] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 01/19/2022] [Indexed: 11/13/2022] Open
Abstract
Indolethylamine-N-methyltransferase (INMT) is a methyltransferase downregulated in lung cancer, meningioma, and prostate cancer; however, its role and mechanism in prostate cancer remain unclear. By analyzing The Cancer Genome Atlas (TCGA)-PRAD, we found that the expression of INMT in prostate cancer was lower than that of adjacent non-cancerous prostate tissues and was significantly correlated with lymph node metastasis Gleason score, PSA expression, and survival. Combined with the GSE46602 cohorts for pathway enrichment analysis, we found that INMT was involved in regulating the MAPK, TGFβ, and Wnt signaling pathways. After overexpression of INMT in prostate cancer cell lines 22Rv1 and PC-3, we found an effect of INMT on these tumor signal pathways; overexpression of INMT inhibited the proliferation of prostate cancer cells and promoted apoptosis. Using the ESTIMATE algorithm, we found that with the increase of INMT expression, immune and stromal scores in the tumor microenvironment increased, immune response intensity increased, and tumor purity decreased. The difference in INMT expression affected the proportion of several immune cells. According to PRISM and CTRP2.0, the potential therapeutic agents associated with the INMT expression subgroup in TCGA were predicted. The area under the curve (AUC) values of 26 compounds positively correlated with the expression of INMT, while the AUC values of 14 compounds were negatively correlated with the expression of INMT. These findings suggest that INMT may affect prostate cancer’s occurrence, development, and drug sensitivity via various tumor signaling pathways and tumor microenvironments.
Collapse
|
15
|
Zhong S, Jeong JH, Huang C, Chen X, Dickinson SI, Dhillon J, Yang L, Luo JL. Targeting INMT and interrupting its methylation pathway for the treatment of castration resistant prostate cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:307. [PMID: 34587977 PMCID: PMC8482636 DOI: 10.1186/s13046-021-02109-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/19/2021] [Indexed: 02/07/2023]
Abstract
Background Castration-resistant prostate cancer (CRPC) is associated with a very poor prognosis, and the treatment of which remains a serious clinical challenge. Methods RNA-seq, qPCR, western blot and immunohistochemistry were employed to identify and confirm the high expression of indolethylamine N-methyltransferase (INMT) in CRPC and the clinical relevance. Chip assay was used to identify Histone-Lysine N-Methyltransferase (SMYD3) as a major epigenetic regulator of INMT. LC-MS/MS were used to identify new substrates of INMT methylation in CRPC tissues. Gene knockdown/overexpression, MTT and mouse cancer models were used to examine the role of INMT as well as the anticancer efficacy of INMT inhibitor N,N-dimethyltryptamine (DMT), the SMYD3 inhibitor BCl-12, the selenium compounds methaneseleninic acid (MSA) and Se-(Methyl)selenocysteine hydrochloride (MSC), and the newly identified endogenous INMT substrate Bis(7)-tacrine. Results We found that the expression of INMT was highly increased in CRPC and was correlated with poor prognosis of clinical prostate cancer (PCa). INMT promoted PCa castration resistance via detoxification of anticancer metabolites. Knockdown of INMT or treatment with INMT inhibitor N,N-dimethyltryptamine (DMT) significantly suppressed CRPC development. Histone-Lysine N-Methyltransferase SMYD3 was a major epigenetic regulator of INMT expression, treatment with SMYD3 inhibitor BCl-121 suppressed INMT expression and inhibits CRPC development. Importantly, INMT knockdown significantly increased the anticancer effect of the exogenous selenium compounds methaneseleninic acid (MSA) and Se-(Methyl)selenocysteine hydrochloride (MSC) as well as the endogenous metabolite Bis(7)-tacrine. Conclusions Our study suggests that INMT drives PCa castration resistance through detoxification of anticancer metabolites, targeting INMT or its regulator SMYD3 or/and its methylation metabolites represents an effective therapeutic avenue for CRPC treatment. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02109-z.
Collapse
Affiliation(s)
- Shangwei Zhong
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Ji-Hak Jeong
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA.,College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Changhao Huang
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Xueyan Chen
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | | | - Jasreman Dhillon
- Department of Pathology, Moffitt Cancer Center, 2902 Magnolia Drive, Tampa, FL, 33612, USA
| | - Li Yang
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA. .,Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, People's Republic of China.
| | - Jun-Li Luo
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA.
| |
Collapse
|
16
|
Hayashi K, Uehara S, Yamamoto S, Cary DR, Nishikawa J, Ueda T, Ozasa H, Mihara K, Yoshimura N, Kawai T, Ono T, Yamamoto S, Fumoto M, Mikamiyama H. Macrocyclic Peptides as a Novel Class of NNMT Inhibitors: A SAR Study Aimed at Inhibitory Activity in the Cell. ACS Med Chem Lett 2021; 12:1093-1101. [PMID: 34267879 DOI: 10.1021/acsmedchemlett.1c00134] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/24/2021] [Indexed: 12/11/2022] Open
Abstract
Nicotinamide N-methyltransferase (NNMT), which catalyzes the methylation of nicotinamide, is a cytosolic enzyme that has attracted much attention as a therapeutic target for a variety of diseases. However, despite the considerable interest in this target, reports of NNMT inhibitors have still been limited to date. In this work, utilizing in vitro translated macrocyclic peptide libraries, we identified peptide 1 as a novel class of NNMT inhibitors. Further exploration based on the X-ray cocrystal structures of the peptides with NNMT provided a dramatic improvement in inhibitory activity (peptide 23: IC50 = 0.15 nM). Furthermore, by balance of the peptides' lipophilicity and biological activity, inhibitory activity against NNMT in cell-based assay was successfully achieved (peptide 26: cell-based IC50 = 770 nM). These findings illuminate the potential of cyclic peptides as a relatively new drug discovery modality even for intracellular targets.
Collapse
Affiliation(s)
- Kyohei Hayashi
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Shota Uehara
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Shiho Yamamoto
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Douglas R. Cary
- PeptiDream Inc., 3-25-23 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Junichi Nishikawa
- PeptiDream Inc., 3-25-23 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Taichi Ueda
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Hiroki Ozasa
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Kousuke Mihara
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Norito Yoshimura
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Taeko Kawai
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Takashi Ono
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Saki Yamamoto
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Masataka Fumoto
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| | - Hidenori Mikamiyama
- Pharmaceutical Research Division, Shionogi Pharmaceutical Research Center, 3-1-1 Futaba-cho, Toyonaka, Osaka 561-0825, Japan
| |
Collapse
|
17
|
Insights into S-adenosyl-l-methionine (SAM)-dependent methyltransferase related diseases and genetic polymorphisms. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2021; 788:108396. [PMID: 34893161 DOI: 10.1016/j.mrrev.2021.108396] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 10/03/2021] [Accepted: 10/05/2021] [Indexed: 12/11/2022]
Abstract
Enzymatic methylation catalyzed by methyltransferases has a significant impact on many human biochemical reactions. As the second most ubiquitous cofactor in humans, S-adenosyl-l-methionine (SAM or AdoMet) serves as a methyl donor for SAM-dependent methyltransferases (MTases), which transfer a methyl group to a nucleophilic acceptor such as O, As, N, S, or C as the byproduct. SAM-dependent methyltransferases can be grouped into different types based on the substrates. Here we systematically reviewed eight types of methyltransferases associated with human diseases. Catechol O-methyltransferase (COMT), As(III) S-adenosylmethionine methyltransferase (AS3MT), indolethylamine N-methyltransferase (INMT), phenylethanolamine N-methyltransferase (PNMT), histamine N-methyltransferase (HNMT), nicotinamide N-methyltransferase (NNMT), thiopurine S-methyltransferase (TPMT) and DNA methyltansferase (DNMT) are classic SAM-dependent MTases. Correlations between genotypes and disease susceptibility can be partially explained by genetic polymorphisms. The physiological function, substrate specificity, genetic variants and disease susceptibility associated with these eight SAM-dependent methyltransferases are discussed in this review.
Collapse
|
18
|
Li Y, Zhang Y, Cheng Y, Du T, Zhang J. Solvent inhibition profiles and inverse solvent isotope effects for enzymatic methyl transfer catalyzed by nicotinamide N‐methyltransferase. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yuping Li
- School of Pharmaceutical Science and Technology Tianjin University Tianjin China
| | - Yali Zhang
- School of Pharmaceutical Science and Technology Tianjin University Tianjin China
| | - Yiting Cheng
- School of Pharmaceutical Science and Technology Tianjin University Tianjin China
| | - Tianshu Du
- School of Pharmaceutical Science and Technology Tianjin University Tianjin China
| | - Jianyu Zhang
- School of Pharmaceutical Science and Technology Tianjin University Tianjin China
| |
Collapse
|
19
|
Pandey DK, Ankade SB, Ali A, Vinod CP, Punji B. Nickel-catalyzed C-H alkylation of indoles with unactivated alkyl chlorides: evidence of a Ni(i)/Ni(iii) pathway. Chem Sci 2019; 10:9493-9500. [PMID: 32110305 PMCID: PMC7017866 DOI: 10.1039/c9sc01446b] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 08/17/2019] [Indexed: 11/21/2022] Open
Abstract
A mild and efficient nickel-catalyzed method for the coupling of unactivated primary and secondary alkyl chlorides with the C-H bond of indoles and pyrroles is described which demonstrates a high level of chemo and regioselectivity. The reaction tolerates numerous functionalities, such as halide, alkenyl, alkynyl, ether, thioether, furanyl, pyrrolyl, indolyl and carbazolyl groups including acyclic and cyclic alkyls under the reaction conditions. Mechanistic investigation highlights that the alkylation proceeds through a single-electron transfer (SET) process with Ni(i)-species being the active catalyst. Overall, the alkylation follows a Ni(i)/Ni(iii) pathway involving the rate-influencing two-step single-electron oxidative addition of alkyl chlorides.
Collapse
Affiliation(s)
- Dilip K Pandey
- Organometallic Synthesis and Catalysis Group , Chemical Engineering Division , CSIR-National Chemical Laboratory (CSIR-NCL) , Dr. Homi Bhabha Road , Pune 411 008 , Maharashtra , India .
- Academy of Scientific and Innovative Research (AcSIR) , CSIR-NCL , Dr. Homi Bhabha Road , Pune , India
| | - Shidheshwar B Ankade
- Organometallic Synthesis and Catalysis Group , Chemical Engineering Division , CSIR-National Chemical Laboratory (CSIR-NCL) , Dr. Homi Bhabha Road , Pune 411 008 , Maharashtra , India .
- Academy of Scientific and Innovative Research (AcSIR) , CSIR-NCL , Dr. Homi Bhabha Road , Pune , India
| | - Abad Ali
- Organometallic Synthesis and Catalysis Group , Chemical Engineering Division , CSIR-National Chemical Laboratory (CSIR-NCL) , Dr. Homi Bhabha Road , Pune 411 008 , Maharashtra , India .
| | - C P Vinod
- Catalysis Division , CSIR-NCL , Dr. Homi Bhabha Road , Pune , India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group , Chemical Engineering Division , CSIR-National Chemical Laboratory (CSIR-NCL) , Dr. Homi Bhabha Road , Pune 411 008 , Maharashtra , India .
- Academy of Scientific and Innovative Research (AcSIR) , CSIR-NCL , Dr. Homi Bhabha Road , Pune , India
| |
Collapse
|
20
|
Torres B, Tyler JS, Satyshur KA, Ruoho AE. Human indole(ethyl)amine-N-methyltransferase (hINMT) catalyzed methylation of tryptamine, dimethylsulfide and dimethylselenide is enhanced under reducing conditions - A comparison between 254C and 254F, two common hINMT variants. PLoS One 2019; 14:e0219664. [PMID: 31310642 PMCID: PMC6634407 DOI: 10.1371/journal.pone.0219664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 06/28/2019] [Indexed: 11/18/2022] Open
Abstract
Phenylalanine and cysteine comprise common miss-sense variants (i.e., single nucleotide polymorphisms [SNPs]) at amino acid position 254 of the human indole(ethyl)amine-N-methyltransferase (hINMT). The phenylalanine variant, which occurs in linkage disequilibrium with two 3’ UTR SNPs, has been reported to associate with elevated urine levels of trimethylselenonium (TMSe), the Se-methylated product of volatile dimethylselenide. hINMT allozymes expressing either cysteine (254C) or phenylalanine (254F) at position 254 were compared for enzyme activity (i.e., Km and Vmax) towards the INMT substrates tryptamine, dimethylsulfide (DMS) and dimethylselenide (DMSe) in vitro. The SNP 254C had a higher Vmax for DMS and tryptamine in the presence of reducing agent than in its absence. Conversely, Vmax for 254F was insensitive to the presence or absence of reducing agent for these substrates. SNP 254F showed a lower Km for tryptamine in the absence of reducing agent than 254C. No statistically significant difference in Vmax or Km was observed between 254C and 254F allozymes in the presence of reducing agent for DMSe, The Km values for DMSe methylation were about 10-fold (254C) or 6-fold (254F) more favorable than for tryptamine methylation with reducing agent present. These findings indicated that: 1) That phenylalanine at position 254 renders hINMT methylation of substrates DMS and tryptamine insensitive to a non reducing environment. 2) That human INMT harbors significant thioether-S-methyltransferase (TEMT) activity with a higher affinity for DMSe than tryptamine, 3) The reduction of a 44C/254C disulfide bond in hINMT that increases Vmax is proposed.
Collapse
Affiliation(s)
- Brian Torres
- Department of Neuroscience, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States of America
| | - James S. Tyler
- Department of Neuroscience, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Kenneth A. Satyshur
- Small Molecule Screening Facility, Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Arnold E. Ruoho
- Department of Neuroscience, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States of America
- * E-mail:
| |
Collapse
|
21
|
Rodrigues AVSL, Almeida FJ, Vieira-Coelho MA. Dimethyltryptamine: Endogenous Role and Therapeutic Potential. J Psychoactive Drugs 2019; 51:299-310. [DOI: 10.1080/02791072.2019.1602291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alexandra VSL Rodrigues
- Department of Biomedicine-Pharmacology and Therapeutics unit, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Francisco Jcg Almeida
- Department of Biomedicine-Pharmacology and Therapeutics unit, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Maria A Vieira-Coelho
- Department of Biomedicine-Pharmacology and Therapeutics unit, Faculty of Medicine, University of Porto, Porto, Portugal
- Psychiatry and Mental Health Clinic, Hospital de São João, Porto, Portugal
| |
Collapse
|
22
|
Ohshima Y, Kono N, Yokota Y, Watanabe S, Sasaki I, Ishioka NS, Sakashita T, Arakawa K. Anti-tumor effects and potential therapeutic response biomarkers in α-emitting meta- 211At-astato-benzylguanidine therapy for malignant pheochromocytoma explored by RNA-sequencing. Theranostics 2019; 9:1538-1549. [PMID: 31037122 PMCID: PMC6485192 DOI: 10.7150/thno.30353] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 01/04/2019] [Indexed: 12/13/2022] Open
Abstract
Targeted α-particle therapy is a promising option for patients with malignant pheochromocytoma. Recent observations regarding meta-211At-astato-benzylguanidine (211At-MABG) in a pheochromocytoma mouse model showed a strong anti-tumor effect, though the molecular mechanism remains elusive. Here, we present the first comprehensive RNA-sequencing (RNA-seq) data for pheochromocytoma cells based on in vitro211At-MABG administration experiments. Key genes and pathways in the tumor α-particle radiation response are also examined to obtain potential response biomarkers. Methods: We evaluated genome-wide transcriptional alterations in the rat pheochromocytoma cell line PC12 at 3, 6, and 12 h after 211At-MABG treatment; a control experiment using 60Co γ-ray irradiation was carried out to highlight 211At-MABG-specific gene expression. For comparisons, 10% and 80% iso-survival doses (0.8 and 0.1 kBq/mL for 211At-MABG and 10 and 1 Gy for 60Co γ-rays) were used. Results: Enrichment analysis of differentially expressed genes (DEGs) and analysis of the gene expression profiles of cell cycle checkpoints revealed similar modes of cell death via the p53-p21 signaling pathway after 211At-MABG treatment and γ-ray irradiation. The top list of ranked DEGs demonstrated the expression of key genes on the decrease in the survival following 211At-MABG exposure, and four potential genes (Mien1, Otub1, Vdac1 and Vegfa genes) of 211At-MABG therapy. Western blot analysis indicated increased expression of TSPO in 211At-MABG-treated cells, suggesting its potential as a PET imaging probe. Conclusion: Comprehensive RNA-seq revealed contrasting cellular responses to γ-ray and α-particle therapy, leading to the identification of four potential candidate genes that may serve as molecular imaging and 211At-MABG therapy targets.
Collapse
|
23
|
Cameron LP, Olson DE. Dark Classics in Chemical Neuroscience: N, N-Dimethyltryptamine (DMT). ACS Chem Neurosci 2018; 9:2344-2357. [PMID: 30036036 DOI: 10.1021/acschemneuro.8b00101] [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] [Indexed: 12/12/2022] Open
Abstract
Though relatively obscure, N, N-dimethyltryptamine (DMT) is an important molecule in psychopharmacology as it is the archetype for all indole-containing serotonergic psychedelics. Its structure can be found embedded within those of better-known molecules such as lysergic acid diethylamide (LSD) and psilocybin. Unlike the latter two compounds, DMT is ubiquitous, being produced by a wide variety of plant and animal species. It is one of the principal psychoactive components of ayahuasca, a tisane made from various plant sources that has been used for centuries. Furthermore, DMT is one of the few psychedelic compounds produced endogenously by mammals, and its biological function in human physiology remains a mystery. In this review, we cover the synthesis of DMT as well as its pharmacology, metabolism, adverse effects, and potential use in medicine. Finally, we discuss the history of DMT in chemical neuroscience and why this underappreciated molecule is so important to the field of psychedelic science.
Collapse
Affiliation(s)
- Lindsay P. Cameron
- Neuroscience Graduate Program, University of California, Davis, 1544 Newton Ct., Davis, California 95618, United States
| | - David E. Olson
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
- Department of Biochemistry & Molecular Medicine, School of Medicine, University of California, Davis, 2700 Stockton Blvd., Suite 2102, Sacramento, California 95817, United States
- Center for Neuroscience, University of California, Davis, 1544 Newton Ct., Davis, California 95618, United States
| |
Collapse
|
24
|
Khake SM, Jain S, Patel UN, Gonnade RG, Vanka K, Punji B. Mechanism of Nickel(II)-Catalyzed C(2)–H Alkynylation of Indoles with Alkynyl Bromide. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00177] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Shrikant M. Khake
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110 020, India
| | | | - Ulhas N. Patel
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110 020, India
| | | | | | - Benudhar Punji
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110 020, India
| |
Collapse
|
25
|
Apiaceous vegetable intake modulates expression of DNA damage response genes and microRNA in the rat colon. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
26
|
Dean JG. Indolethylamine- N-methyltransferase Polymorphisms: Genetic and Biochemical Approaches for Study of Endogenous N,N,-dimethyltryptamine. Front Neurosci 2018; 12:232. [PMID: 29740267 PMCID: PMC5924808 DOI: 10.3389/fnins.2018.00232] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/23/2018] [Indexed: 12/05/2022] Open
Abstract
N,N-dimethyltryptamine (DMT) is a powerful serotonergic psychedelic whose exogenous administration elicits striking psychedelic effects in humans. Studies have identified DMT and analogous compounds (e.g., 5-hydroxy-DMT, 5-methoxy-DMT) alongside of an enzyme capable of synthesizing DMT endogenously from tryptamine, indolethylamine-N-methyltransferase (INMT), in human and several other mammalian tissues. Subsequently, multiple hypotheses for the physiological role of endogenous DMT have emerged, from proposed immunomodulatory functions to an emphasis on the overlap between the mental states generated by exogenous DMT and naturally occurring altered states of consciousness; e.g., schizophrenia. However, no clear relationship between endogenous DMT and naturally occurring altered states of consciousness has yet been established from in vivo assays of DMT in bodily fluids. The advent of genetic screening has afforded the capability to link alterations in the sequence of specific genes to behavioral and molecular phenotypes via expression of identified single nucleotide polymorphisms (SNPs) in cell and animal models. As SNPs in INMT may impact endogenous DMT synthesis and levels via changes in INMT expression and/or INMT structure and function, these combined genetic and biochemical approaches circumvent the limitations of assaying DMT in bodily fluids and may augment data from prior in vitro and in vivo work. Therefore, all reported SNPs in INMT were amassed from genetic and biochemical literature and genomic databases to consolidate a blueprint for future studies aimed at elucidating whether DMT plays a physiological role.
Collapse
Affiliation(s)
- Jon G Dean
- Molecular and Integrative Physiology, Center for Consciousness Science, University of Michigan, Ann Arbor, MI, United States
| |
Collapse
|
27
|
Li W, Meng D, Gu Z, Yang Q, Yuan H, Li Y, Chen Q, Yu J, Liu C, Li T. Apple S-RNase triggers inhibition of tRNA aminoacylation by interacting with a soluble inorganic pyrophosphatase in growing self-pollen tubes in vitro. THE NEW PHYTOLOGIST 2018; 218:579-593. [PMID: 29424440 DOI: 10.1111/nph.15028] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 01/04/2018] [Indexed: 05/21/2023]
Abstract
Apple exhibits S-RNase-based self-incompatibility (SI), in which S-RNase plays a central role in rejecting self-pollen. It has been proposed that the arrest of pollen growth in SI of Solanaceae plants is a consequence of the degradation of pollen rRNA by S-RNase; however, the underlying mechanism in Rosaceae is still unclear. Here, we used S2 -RNase as a bait to screen an apple pollen cDNA library and characterized an apple soluble inorganic pyrophosphatase (MdPPa) that physically interacted with S-RNases. When treated with self S-RNases, apple pollen tubes showed a marked growth inhibition, as well as a decrease in endogenous soluble pyrophosphatase activity and elevated levels of inorganic pyrophosphate (PPi). In addition, S-RNase was found to bind to two variable regions of MdPPa, resulting in a noncompetitive inhibition of its activity. Silencing of MdPPa expression led to a reduction in pollen tube growth. Interestingly, tRNA aminoacylation was inhibited in self S-RNase-treated or MdPPa-silenced pollen tubes, resulting in the accumulation of uncharged tRNA. Furthermore, we provide evidence showing that this disturbance of tRNA aminoacylation is independent of RNase activity. We propose an alternative mechanism differing from RNA degradation to explain the cytotoxicity of the S-RNase apple SI process.
Collapse
Affiliation(s)
- Wei Li
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Dong Meng
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zhaoyu Gu
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Qing Yang
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Hui Yuan
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yang Li
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Qiuju Chen
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Jie Yu
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Chunsheng Liu
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Tianzhong Li
- Laboratory of Fruit Cell and Molecular Breeding, College of Horticulture, China Agricultural University, Beijing, 100193, China
| |
Collapse
|
28
|
Abstract
The pineal gland has a romantic history, from pharaonic Egypt, where it was equated with the eye of Horus, through various religious traditions, where it was considered the seat of the soul, the third eye, etc. Recent incarnations of these notions have suggested that N,N-dimethyltryptamine is secreted by the pineal gland at birth, during dreaming, and at near death to produce out of body experiences. Scientific evidence, however, is not consistent with these ideas. The adult pineal gland weighs less than 0.2 g, and its principal function is to produce about 30 µg per day of melatonin, a hormone that regulates circadian rhythm through very high affinity interactions with melatonin receptors. It is clear that very minute concentrations of N,N-dimethyltryptamine have been detected in the brain, but they are not sufficient to produce psychoactive effects. Alternative explanations are presented to explain how stress and near death can produce altered states of consciousness without invoking the intermediacy of N,N-dimethyltryptamine.
Collapse
|
29
|
Morales-Prieto N, Abril N. REDOX proteomics reveals energy metabolism alterations in the liver of M. spretus mice exposed to p, p'-DDE. CHEMOSPHERE 2017; 186:848-863. [PMID: 28826133 DOI: 10.1016/j.chemosphere.2017.08.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/27/2017] [Accepted: 08/11/2017] [Indexed: 06/07/2023]
Abstract
The toxicity induced by the pesticide 2,2-bis(p-chlorophenyl)-1,1,1,-trichloroethane (DDT) and its derivative 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p'-DDE) has been associated with mitochondrial dysfunction, uncoupling of oxidative phosphorylation and respiratory chain electron transport, intracellular ion imbalance, generation of reactive oxygen species and impairment of the antioxidant defense system. A disruption in the cellular redox status causes protein Cys-based regulatory shifts that influence the activity of many proteins and trigger signal transduction alterations. Here, we analyzed the ability of p,p'-DDE to alter the activities of hepatic antioxidants and glycolytic enzymes to investigate the oxidative stress generation in the liver of p,p'-DDE-fed M. spretus mice. We also determined the consequences of the treatment on the redox status in the thiol Cys groups. The data indicate that the liver of p,p'-DDE exposed mice lacks certain protective enzymes, and p,p'-DDE caused a metabolic reprogramming that increased the glycolytic rate and disturbed the metabolism of lipids. Our results suggested that the overall metabolism of the liver was altered because important signaling pathways are controlled by p,p'-DDE-deregulated proteins. The histological data support the proposed metabolic consequences of the p,p'-DDE exposure.
Collapse
Affiliation(s)
- Noelia Morales-Prieto
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, España, Spain
| | - Nieves Abril
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, España, Spain.
| |
Collapse
|
30
|
Khake SM, Soni V, Gonnade RG, Punji B. A General Nickel-Catalyzed Method for C−H Bond Alkynylation of Heteroarenes Through Chelation Assistance. Chemistry 2017; 23:2907-2914. [DOI: 10.1002/chem.201605306] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Shrikant M. Khake
- Organometallic Synthesis and Catalysis Group; Chemical Engineering Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411 008 Maharastra India
| | - Vineeta Soni
- Organometallic Synthesis and Catalysis Group; Chemical Engineering Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411 008 Maharastra India
| | - Rajesh G. Gonnade
- Centre for Material Characterization; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411 008 Maharastra India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group; Chemical Engineering Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411 008 Maharastra India
| |
Collapse
|
31
|
Soni V, Jagtap RA, Gonnade RG, Punji B. Unified Strategy for Nickel-Catalyzed C-2 Alkylation of Indoles through Chelation Assistance. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02003] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Vineeta Soni
- Organometallic Synthesis and Catalysis
Group, Chemical Engineering
Division, and ‡Centre for Material Characterization, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Rahul A. Jagtap
- Organometallic Synthesis and Catalysis
Group, Chemical Engineering
Division, and ‡Centre for Material Characterization, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Rajesh G. Gonnade
- Organometallic Synthesis and Catalysis
Group, Chemical Engineering
Division, and ‡Centre for Material Characterization, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis
Group, Chemical Engineering
Division, and ‡Centre for Material Characterization, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| |
Collapse
|
32
|
Schulten HJ, Hussein D, Al-Adwani F, Karim S, Al-Maghrabi J, Al-Sharif M, Jamal A, Al-Ghamdi F, Baeesa SS, Bangash M, Chaudhary A, Al-Qahtani M. Microarray Expression Data Identify DCC as a Candidate Gene for Early Meningioma Progression. PLoS One 2016; 11:e0153681. [PMID: 27096627 PMCID: PMC4838307 DOI: 10.1371/journal.pone.0153681] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 04/01/2016] [Indexed: 12/23/2022] Open
Abstract
Meningiomas are the most common primary brain tumors bearing in a minority of cases an aggressive phenotype. Although meningiomas are stratified according to their histology and clinical behavior, the underlying molecular genetics predicting aggressiveness are not thoroughly understood. We performed whole transcript expression profiling in 10 grade I and four grade II meningiomas, three of which invaded the brain. Microarray expression analysis identified deleted in colorectal cancer (DCC) as a differentially expressed gene (DEG) enabling us to cluster meningiomas into DCC low expression (3 grade I and 3 grade II tumors), DCC medium expression (2 grade I and 1 grade II tumors), and DCC high expression (5 grade I tumors) groups. Comparison between the DCC low expression and DCC high expression groups resulted in 416 DEGs (p-value < 0.05; fold change > 2). The most significantly downregulated genes in the DCC low expression group comprised DCC, phosphodiesterase 1C (PDE1C), calmodulin-dependent 70kDa olfactomedin 2 (OLFM2), glutathione S-transferase mu 5 (GSTM5), phosphotyrosine interaction domain containing 1 (PID1), sema domain, transmembrane domain (TM) and cytoplasmic domain, (semaphorin) 6D (SEMA6D), and indolethylamine N-methyltransferase (INMT). The most significantly upregulated genes comprised chromosome 5 open reading frame 63 (C5orf63), homeodomain interacting protein kinase 2 (HIPK2), and basic helix-loop-helix family, member e40 (BHLHE40). Biofunctional analysis identified as predicted top upstream regulators beta-estradiol, TGFB1, Tgf beta complex, LY294002, and dexamethasone and as predicted top regulator effectors NFkB, PIK3R1, and CREBBP. The microarray expression data served also for a comparison between meningiomas from female and male patients and for a comparison between brain invasive and non-invasive meningiomas resulting in a number of significant DEGs and related biofunctions. In conclusion, based on its expression levels, DCC may constitute a valid biomarker to identify those benign meningiomas at risk for progression.
Collapse
Affiliation(s)
- Hans-Juergen Schulten
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
- KACST Technology Innovation Center in Personalized Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- * E-mail:
| | - Deema Hussein
- King Fahad Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fatima Al-Adwani
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Biology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sajjad Karim
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
- KACST Technology Innovation Center in Personalized Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jaudah Al-Maghrabi
- Department of Pathology, Faculty of Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
- Department of Pathology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Mona Al-Sharif
- Department of Biology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Awatif Jamal
- Department of Pathology, Faculty of Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Fahad Al-Ghamdi
- Department of Pathology, Faculty of Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Saleh S. Baeesa
- Division of Neurosurgery, Department of Surgery, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Mohammed Bangash
- Division of Neurosurgery, Department of Surgery, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Adeel Chaudhary
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
- KACST Technology Innovation Center in Personalized Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed Al-Qahtani
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
- KACST Technology Innovation Center in Personalized Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
33
|
Pakhare DS, Kusurkar RS. Synthesis of tetrahydro-β-carbolines, β-carbolines, and natural products, (±)-harmicine, eudistomin U and canthine by reductive Pictet Spengler cyclization. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.052] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
34
|
van Waarde A, Rybczynska AA, Ramakrishnan NK, Ishiwata K, Elsinga PH, Dierckx RAJO. Potential applications for sigma receptor ligands in cancer diagnosis and therapy. BIOCHIMICA ET BIOPHYSICA ACTA 2015; 1848:2703-14. [PMID: 25173780 DOI: 10.1016/j.bbamem.2014.08.022] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 08/04/2014] [Accepted: 08/19/2014] [Indexed: 01/03/2023]
Abstract
Sigma receptors (sigma-1 and sigma-2) represent two independent classes of proteins. Their endogenous ligands may include the hallucinogen N,N-dimethyltryptamine (DMT) and sphingolipid-derived amines which interact with sigma-1 receptors, besides steroid hormones (e.g., progesterone) which bind to both sigma receptor subpopulations. The sigma-1 receptor is a ligand-regulated molecular chaperone with various ion channels and G-protein-coupled membrane receptors as clients. The sigma-2 receptor was identified as the progesterone receptor membrane component 1 (PGRMC1). Although sigma receptors are over-expressed in tumors and up-regulated in rapidly dividing normal tissue, their ligands induce significant cell death only in tumor tissue. Sigma ligands may therefore be used to selectively eradicate tumors. Multiple mechanisms appear to underlie cell killing after administration of sigma ligands, and the signaling pathways are dependent both on the type of ligand and the type of tumor cell. Recent evidence suggests that the sigma-2 receptor is a potential tumor and serum biomarker for human lung cancer and an important target for inhibiting tumor invasion and cancer progression. Current radiochemical efforts are focused on the development of subtype-selective radioligands for positron emission tomography (PET) imaging. Right now, the mostpromising tracers are [18F]fluspidine and [18F]FTC-146 for sigma-1 receptors and [11C]RHM-1 and [18F]ISO-1 for the sigma-2 subtype. Nanoparticles coupled to sigma ligands have shown considerable potential for targeted delivery of antitumor drugs in animal models of cancer, but clinical studies exploring this strategy in cancer patients have not yet been reported. This article is part of a Special Issue entitled: Membrane channels and transporters in cancers.
Collapse
Affiliation(s)
- Aren van Waarde
- University of Groningen, University Medical Center Groningen, Department of Nuclear Medicine and Molecular Imaging, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
| | - Anna A Rybczynska
- University of Groningen, University Medical Center Groningen, Department of Nuclear Medicine and Molecular Imaging, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Nisha K Ramakrishnan
- University of Groningen, University Medical Center Groningen, Department of Nuclear Medicine and Molecular Imaging, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Kiichi Ishiwata
- Tokyo Metropolitan Institute of Gerontology, Research Team for Neuroimaging, 35-2 Sakae-Cho, Itabashi-Ku, Tokyo 173-0015, Japan
| | - Philip H Elsinga
- University of Groningen, University Medical Center Groningen, Department of Nuclear Medicine and Molecular Imaging, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Rudi A J O Dierckx
- University of Groningen, University Medical Center Groningen, Department of Nuclear Medicine and Molecular Imaging, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; University of Ghent, University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
| |
Collapse
|
35
|
Moreira LA, Murta MM, Gatto CC, Fagg CW, Santos MLD. Concise Synthesis of N,N-Dimethyltryptamine and 5-Methoxy- N,N-dimethyltryptamine Starting with Bufotenine from Brazilian Anadenanthera ssp. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Bufotenine (1, 5-hydroxy- N,N-dimethyltryptamine) was isolated from seeds of Anadenanthera spp., a tree widespread in the Brazilian cerrado, using an efficient acid-base shakeout protocol. The conversion of bufotenine into N,N-dimethyltryptamine (4) and 5-methoxy- N,N-dimethyltryptamine (5) was accomplished through an innovative and short approach featuring the use of novel bufotenine-aminoborane complex (7). Furthermore, an easy methodology for conversion of bufotenine into 5-hydroxy -N,N,N-trimethyltryptamine (6) was well-established. This is the first study that highlights bufotenine as a resource for the production of N, N-dimethyltryptamines for either pharmacological and toxicological investigations or for synthetic purposes.
Collapse
Affiliation(s)
- Leandro A. Moreira
- Instituto de Química, Universidade de Brasília, Brasília-DF, Brazil, 70919–970
| | - Maria M. Murta
- Instituto de Química, Universidade de Brasília, Brasília-DF, Brazil, 70919–970
| | - Claudia C. Gatto
- Instituto de Química, Universidade de Brasília, Brasília-DF, Brazil, 70919–970
| | - Christopher W. Fagg
- Faculdade UnB Ceilândia, Universidade de Brasília, Ceilândia-DF, Brazil, 72220-140
| | - Maria L. dos Santos
- Instituto de Química, Universidade de Brasília, Brasília-DF, Brazil, 70919–970
| |
Collapse
|