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Mosca L, Pagano C, Tranchese RV, Grillo R, Cadoni F, Navarra G, Coppola L, Pagano M, Mele L, Cacciapuoti G, Laezza C, Porcelli M. Antitumoral Activity of the Universal Methyl Donor S-Adenosylmethionine in Glioblastoma Cells. Molecules 2024; 29:1708. [PMID: 38675528 PMCID: PMC11052366 DOI: 10.3390/molecules29081708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Glioblastoma (GBM), the most frequent and lethal brain cancer in adults, is characterized by short survival times and high mortality rates. Due to the resistance of GBM cells to conventional therapeutic treatments, scientific interest is focusing on the search for alternative and efficient adjuvant treatments. S-Adenosylmethionine (AdoMet), the well-studied physiological methyl donor, has emerged as a promising anticancer compound and a modulator of multiple cancer-related signaling pathways. We report here for the first time that AdoMet selectively inhibited the viability and proliferation of U87MG, U343MG, and U251MG GBM cells. In these cell lines, AdoMet induced S and G2/M cell cycle arrest and apoptosis and downregulated the expression and activation of proteins involved in homologous recombination DNA repair, including RAD51, BRCA1, and Chk1. Furthermore, AdoMet was able to maintain DNA in a damaged state, as indicated by the increased γH2AX/H2AX ratio. AdoMet promoted mitotic catastrophe through inhibiting Aurora B kinase expression, phosphorylation, and localization causing GBM cells to undergo mitotic catastrophe-induced death. Finally, AdoMet inhibited DNA repair and induced cell cycle arrest, apoptosis, and mitotic catastrophe in patient-derived GBM cells. In light of these results, AdoMet could be considered a potential adjuvant in GBM therapy.
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Affiliation(s)
- Laura Mosca
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi De Crecchio 7, 80138 Naples, Italy; (L.M.); (R.V.T.); (R.G.); (F.C.); (M.P.); (M.P.)
| | - Cristina Pagano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy; (C.P.); (G.N.); (L.C.)
| | - Roberta Veglia Tranchese
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi De Crecchio 7, 80138 Naples, Italy; (L.M.); (R.V.T.); (R.G.); (F.C.); (M.P.); (M.P.)
| | - Roberta Grillo
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi De Crecchio 7, 80138 Naples, Italy; (L.M.); (R.V.T.); (R.G.); (F.C.); (M.P.); (M.P.)
| | - Francesca Cadoni
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi De Crecchio 7, 80138 Naples, Italy; (L.M.); (R.V.T.); (R.G.); (F.C.); (M.P.); (M.P.)
| | - Giovanna Navarra
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy; (C.P.); (G.N.); (L.C.)
| | - Laura Coppola
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy; (C.P.); (G.N.); (L.C.)
| | - Martina Pagano
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi De Crecchio 7, 80138 Naples, Italy; (L.M.); (R.V.T.); (R.G.); (F.C.); (M.P.); (M.P.)
| | - Luigi Mele
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via Luciano Armanni 5, 80138 Naples, Italy;
| | - Giovanna Cacciapuoti
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi De Crecchio 7, 80138 Naples, Italy; (L.M.); (R.V.T.); (R.G.); (F.C.); (M.P.); (M.P.)
| | - Chiara Laezza
- Institute of Endocrinology and Experimental Oncology (IEOS), National Research Council (CNR), Via Pansini 5, 80131 Naples, Italy;
| | - Marina Porcelli
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi De Crecchio 7, 80138 Naples, Italy; (L.M.); (R.V.T.); (R.G.); (F.C.); (M.P.); (M.P.)
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Mathes A, Duman MB, Neumann A, Dobreva G, Schmidt T. S-adenosylmethionine treatment affects histone methylation in prostate cancer cells. Gene 2024; 893:147915. [PMID: 37866662 DOI: 10.1016/j.gene.2023.147915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/13/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
S-adenosylmethionine (SAM) represents a potent inhibitor of cancer cell proliferation, migration, and invasionin vitro.The underlying mechanisms remain elusive. Here, we examined, if treatment with SAM may cause alterations in the methylation of the histone marks H3K4me3 and H3K27me3, which are both known to play important roles in the initiation and progression of prostate cancer. We treated PC-3 cells with 200 µmol SAM, a concentration known to cause anticancerogenic effects, followed by ChIP-sequencing for H3K4me3 and H3K27me3. We detected 236 differentially methylated regions for H3K27me3 and 560 differentially methylated regions for H3K4me3. GO Term enrichment showed upregulation of anticancerogenic, as well as downregulation of cancerogenic related biological processes, molecular functions, and pathways. Furthermore, we compared specific methylation profiles of SAM treated samples to gene expression changes (RNA-Seq). 35 upregulated and 56 downregulated genes (total: 604 differentially expressed genes) could be related to hypomethylated and hypermethylated regions. 17 upregulated genes could be identified as tumor suppressor genes, 45 downregulated genes in contrast are considered as oncogenes. As a conclusion it can be stated that SAM treatment of prostate cancer cells resulted in alterations of H3K4me3 and H3K27me3 methylation profiles. Gene to peak annotation, alignment with results of a transcriptome study as well as GO-term analysis underpinned the biological relevance of methylation changes.
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Affiliation(s)
- Arthur Mathes
- Cardiovascular Genomics and Epigenomics, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | | | | | - Gergana Dobreva
- Cardiovascular Genomics and Epigenomics, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Thomas Schmidt
- Anatomy and Developmental Biology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
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Yang G, Li S, Cai S, Zhou J, Ye Q, Zhang S, Chen F, Wang F, Zeng X. Dietary methionine supplementation during the estrous cycle improves follicular development and estrogen synthesis in rats. Food Funct 2024; 15:704-715. [PMID: 38109056 DOI: 10.1039/d3fo04106a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
The follicle is an important unit for the synthesis of steroid hormones and the oocyte development and maturation in mammals. However, the effect of methionine supply on follicle development and its regulatory mechanism are still unclear. In the present study, we found that dietary methionine supplementation during the estrous cycle significantly increased the number of embryo implantation sites, as well as serum contents of a variety of amino acids and methionine metabolic enzymes in rats. Additionally, methionine supplementation markedly enhanced the expression of rat ovarian neutral amino acid transporters, DNA methyltransferases (DNMTs), and cystathionine gamma-lyase (CSE); meanwhile, it significantly increased the ovarian concentrations of the metabolite S-adenosylmethionine (SAM) and glutathione (GSH). In vitro data showed that methionine supply promotes rat follicle development through enhancing the expression of critical gene growth differentiation factor 9 and bone morphogenetic protein 15. Furthermore, methionine enhanced the relative protein and mRNA expression of critical genes related to estrogen synthesis, ultimately increasing estrogen synthesis in primary ovarian granulosa cells. Taken together, our results suggested that methionine promoted follicular growth and estrogen synthesis in rats during the estrus cycle, which improved embryo implantation during early pregnancy. These findings provided a potential nutritional strategy to improve the reproductive performance of animals.
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Affiliation(s)
- Guangxin Yang
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR. China.
- Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR. China
| | - Siyu Li
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR. China.
- Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR. China
| | - Shuang Cai
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR. China.
- Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR. China
| | - Junyan Zhou
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR. China.
- Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR. China
| | - Qianhong Ye
- State Key Laboratory of Agricultural Microbiology, Hu Hubei Hongshan Laboratory. College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Shihai Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Fang Chen
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Fenglai Wang
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR. China.
- Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR. China
| | - Xiangfang Zeng
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR. China.
- Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR. China
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Peng TR, Cheng HY, Wu TW. S-Adenosylmethionine (SAMe) as an adjuvant therapy for patients with depression: An updated systematic review and meta-analysis. Gen Hosp Psychiatry 2024; 86:118-126. [PMID: 38199136 DOI: 10.1016/j.genhosppsych.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
BACKGROUND Major depressive disorder (MDD) is an intractable disease requiring long-term treatment. S-adenosyl-L-methionine (SAMe), a natural substance, has antidepressant effects, but the exact effect remains unclear. This study examines the evidence concerning the efficacy of SAMe as a monotherapy or in combination with antidepressants. METHODS The PubMed, EMBASE, and Cochrane electronic databases were searched for meta-analyses of randomized controlled clinical trials (RCTs) until June 30, 2023. We performed a systematic review and meta-analysis of the enrolled trials that met the inclusion criteria, with the aim to compare the effects of SAMe to those of a placebo or active agents, or SAMe combined with other antidepressants in the treatment of MDD. RESULTS Fourteen trials, with a total of 1522 subjects, were included in this review. The daily dose of SAMe varied from 200 to 3200 mg and the study duration ranged between 2 and 12 weeks. The results of SAMe versus placebo as a monotherapy, SAMe versus imipramine or escitalopram as a monotherapy, and SAMe versus placebo as an adjunctive therapy, showed no significant difference in depression with SAMe compared to the comparison treatment. CONCLUSIONS SAMe may provide relief of depression symptoms similar to imipramine or escitalopram. However, the results of the comparisons should be interpreted with caution due to the small number of studies and the large range of SAMe doses that were used in the included trials. Therefore, we recommend that patients discuss treatment options with their doctor before taking SAMe.
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Affiliation(s)
- Tzu-Rong Peng
- Department of Pharmacy, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Han-Yu Cheng
- Department of Pharmacy, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.
| | - Ta-Wei Wu
- Department of Pharmacy, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.
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Shen X, Xie X, Wu Q, Shi F, Chen Y, Yuan S, Xing K, Li X, Zhu Q, Li B, Wang Z. S-adenosylmethionine attenuates angiotensin II-induced aortic dissection formation by inhibiting vascular smooth muscle cell phenotypic switch and autophagy. Biochem Pharmacol 2024; 219:115967. [PMID: 38065291 DOI: 10.1016/j.bcp.2023.115967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/17/2023] [Accepted: 12/04/2023] [Indexed: 12/26/2023]
Abstract
It is well known that aortic dissection (AD) is a very aggressive class of vascular diseases. S-adenosylmethionine (SAM) is an autophagy inhibitor with anti-inflammatory and anti-oxidative stress effects; however, the role of SAM in AD is unknown. In this study, we constructed an animal model of AD using subcutaneous minipump continuous infusion of AngII-induced ApoE-/-mice and a cytopathic model using AngII-induced primary vascular smooth muscle cells (VSMCs) to investigate the possible role of SAM in AD. The results showed that mice in the AngII + SAM group had significantly lower AD incidence, significantly prolonged survival, and reduced vascular elastic fiber disruption compared with mice in the AngII group. In addition, SAM significantly inhibited autophagy in vivo and in vitro. Meanwhile, SAM also inhibited the cellular phenotypic switch, mainly by up regulating the expression levels of contractile marker proteins [α-smooth muscle actin (α-SMA) and smooth muscle 22α (SM22α)] and down regulating the expression levels of synthetic marker proteins [osteoblast protein (OPN), matrix metalloproteinase-2 (MMP2), and matrix metalloproteinase-9 (MMP9)]. Molecularly, SAM inhibited AD formation mainly by activating the PI3K/AKT/mTOR signaling pathway. Using a PI3K inhibitor (LY294002) significantly reversed the protective effect of SAM in AngII-induced mice and VSMCs.Our study demonstrates the protective effect of SAM on mice under AngII-induced AD for the first time. SAM prevented AD formation mainly by inhibiting cellular phenotypic switch and autophagy, and activation of the PI3K/AKT/mTOR signaling pathway is a possible molecular mechanism. Thus, SAM may be a novel strategy for the treatment of AD.
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Affiliation(s)
- Xiaoyan Shen
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Xiaoping Xie
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Qi Wu
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Feng Shi
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Yuanyang Chen
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Shun Yuan
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Kai Xing
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Xu Li
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Qingyi Zhu
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China
| | - Bowen Li
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China.
| | - Zhiwei Wang
- Department of Cardiothoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China; Cardiovascular Surgery Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China; Central Laboratory, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuhan 430000, Hubei Province, People's Republic of China.
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Li F, Liu P, Mi W, Li L, Anderson NM, Lesner NP, Burrows M, Plesset J, Majer A, Wang G, Li J, Zhu L, Keith B, Simon MC. Blocking methionine catabolism induces senescence and confers vulnerability to GSK3 inhibition in liver cancer. Nat Cancer 2024; 5:131-146. [PMID: 38168934 DOI: 10.1038/s43018-023-00671-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 10/16/2023] [Indexed: 01/05/2024]
Abstract
Availability of the essential amino acid methionine affects cellular metabolism and growth, and dietary methionine restriction has been implicated as a cancer therapeutic strategy. Nevertheless, how liver cancer cells respond to methionine deprivation and underlying mechanisms remain unclear. Here we find that human liver cancer cells undergo irreversible cell cycle arrest upon methionine deprivation in vitro. Blocking methionine adenosyl transferase 2A (MAT2A)-dependent methionine catabolism induces cell cycle arrest and DNA damage in liver cancer cells, resulting in cellular senescence. A pharmacological screen further identified GSK3 inhibitors as senolytics that selectively kill MAT2A-inhibited senescent liver cancer cells. Importantly, combined treatment with MAT2A and GSK3 inhibitors therapeutically blunts liver tumor growth in vitro and in vivo across multiple models. Together, methionine catabolism is essential for liver tumor growth, and its inhibition can be exploited as an improved pro-senescence strategy for combination with senolytic agents to treat liver cancer.
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Affiliation(s)
- Fuming Li
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China.
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Pingyu Liu
- Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, China
| | - Wen Mi
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Liucheng Li
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Nicole M Anderson
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS, USA
| | - Nicholas P Lesner
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michelle Burrows
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jacqueline Plesset
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ariana Majer
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Guanlin Wang
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Jinyang Li
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Lingzhi Zhu
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Brian Keith
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - M Celeste Simon
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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Hoang LD, Aoyama E, Hiasa M, Omote H, Kubota S, Kuboki T, Takigawa M. Positive Regulation of S-Adenosylmethionine on Chondrocytic Differentiation via Stimulation of Polyamine Production and the Gene Expression of Chondrogenic Differentiation Factors. Int J Mol Sci 2023; 24:17294. [PMID: 38139122 PMCID: PMC10743985 DOI: 10.3390/ijms242417294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
S-adenosylmethionine (SAM) is considered to be a useful therapeutic agent for degenerative cartilage diseases, although its mechanism is not clear. We previously found that polyamines stimulate the expression of differentiated phenotype of chondrocytes. We also found that the cellular communication network factor 2 (CCN2) played a huge role in the proliferation and differentiation of chondrocytes. Therefore, we hypothesized that polyamines and CCN2 could be involved in the chondroprotective action of SAM. In this study, we initially found that exogenous SAM enhanced proteoglycan production but not cell proliferation in human chondrocyte-like cell line-2/8 (HCS-2/8) cells. Moreover, SAM enhanced gene expression of cartilage-specific matrix (aggrecan and type II collagen), Sry-Box transcription factor 9 (SOX9), CCN2, and chondroitin sulfate biosynthetic enzymes. The blockade of the methionine adenosyltransferase 2A (MAT2A) enzyme catalyzing intracellular SAM biosynthesis restrained the effect of SAM on chondrocytes. The polyamine level in chondrocytes was higher in SAM-treated culture than control culture. Additionally, Alcian blue staining and RT-qPCR indicated that the effects of SAM on the production and gene expression of aggrecan were reduced by the inhibition of polyamine synthesis. These results suggest that the stimulation of polyamine synthesis and gene expression of chondrogenic differentiation factors, such as CCN2, account for the mechanism underlying the action of SAM on chondrocytes.
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Affiliation(s)
- Loc Dinh Hoang
- Advanced Research Center for Oral and Craniofacial Sciences (ARCOCS), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
- Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
| | - Eriko Aoyama
- Advanced Research Center for Oral and Craniofacial Sciences (ARCOCS), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
| | - Miki Hiasa
- Laboratory of Membrane Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-0082, Japan; (M.H.); (H.O.)
| | - Hiroshi Omote
- Laboratory of Membrane Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-0082, Japan; (M.H.); (H.O.)
| | - Satoshi Kubota
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
| | - Takuo Kuboki
- Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
| | - Masaharu Takigawa
- Advanced Research Center for Oral and Craniofacial Sciences (ARCOCS), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
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8
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Li D, Li BX, Zhang Y, Li X, Li JY, Zhang XY, Ye XW, Zhang C. SAM protects against alveolar septal cell apoptosis in autoimmune emphysema rats. Eur J Med Res 2023; 28:460. [PMID: 37880804 PMCID: PMC10601109 DOI: 10.1186/s40001-023-01396-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 09/25/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Hypomethylation of the perforin gene promoter in CD4 + T cells, inflammation and oxidative stress, might be involved in alveolar septal cell apoptosis associated with emphysema in rats. This study aimed to investigate the effects of S-adenosylmethionine (SAM) on this kind of apoptosis in rats with autoimmune emphysema. METHODS Twenty-four rats were randomly divided into three groups: a normal control group, a model group, and a SAM group. Pathological changes in lung tissues were observed, and the mean linear intercept (MLI) and mean alveolar number (MAN) were measured. The levels of anti-endothelial cell antibodies (AECA) in serum, alveolar septal cell apoptosis, perforin gene promotor methylation in CD4 + T cells in the spleen, and the levels of cytokines, malondialdehyde (MDA), and glutathione (GSH) and the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in bronchoalveolar lavage fluid (BALF) were investigated. RESULTS The MLI, apoptosis index (AI) of alveolar septal cells, levels of AECA in serum, and levels of tumour necrosis factor-α (TNF-α), matrix metalloproteinase-9 (MMP-9) and MDA in BALF were increased, while the MAN, methylation levels, and the activities of GSH, SOD and GSH-Px in BALF were decreased in the model group compared with those in the normal control group and the SAM group (all P < 0.05). The levels of interleukin-8 (IL-8) in BALF were greater in the model group than in the normal control group (P < 0.05). CONCLUSIONS SAM protects against alveolar septal cell apoptosis, airway inflammation and oxidative stress in rats with autoimmune emphysema possibly by partly reversing the hypomethylation of the perforin gene promoter in CD4 + T cells.
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Affiliation(s)
- Dan Li
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, No. 83, Zhongshan East Road, Guiyang, Guizhou, China
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Ben-Xue Li
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, No. 83, Zhongshan East Road, Guiyang, Guizhou, China
- Panzhou People's Hospital, Panzhou, Guizhou, China
| | - Ye Zhang
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, No. 83, Zhongshan East Road, Guiyang, Guizhou, China
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Xia Li
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, No. 83, Zhongshan East Road, Guiyang, Guizhou, China
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Jia-Yi Li
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, No. 83, Zhongshan East Road, Guiyang, Guizhou, China
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Xiang-Yan Zhang
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, No. 83, Zhongshan East Road, Guiyang, Guizhou, China
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Xian-Wei Ye
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, No. 83, Zhongshan East Road, Guiyang, Guizhou, China.
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China.
| | - Cheng Zhang
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, No. 83, Zhongshan East Road, Guiyang, Guizhou, China.
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China.
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9
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Xiao L, Dou W, Wang Y, Deng H, Xu H, Pan Y. Treatment with S-adenosylmethionine ameliorates irinotecan-induced intestinal barrier dysfunction and intestinal microbial disorder in mice. Biochem Pharmacol 2023; 216:115752. [PMID: 37634598 DOI: 10.1016/j.bcp.2023.115752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/29/2023]
Abstract
This study aimed to investigate the protective effects of S-adenosylmethionine (SAM) on irinotecan-induced intestinal barrier dysfunction and microbial ecological dysregulation in both mice and human colon cell line Caco-2, which is widely used for studying intestinal epithelial barrier function. Specifically, this study utilized Caco-2 monolayers incubated with 7-ethyl-10-hydroxycamptothecin (SN-38) as well as an irinotecan-induced diarrhea model in mice. Our study found that SAM pretreatment significantly reduced body weight loss and diarrhea induced by irinotecan in mice. Furthermore, SAM inhibited the increase of intestinal permeability in irinotecan-treated mice and ameliorated the decrease of Zonula occludens-1(ZO-1), Occludin, and Claudin-1 expression. Additionally, irinotecan treatment increased the relative abundance of Proteobacteria compared to the control group, an effect that was reversed by SAM administration. In Caco-2 monolayers, SAM reduced the expression of reactive oxygen species (ROS) and ameliorated the decrease in transepithelial electrical resistance (TER) and increase in fluorescein isothiocyanate-dextran 4000 Da (FD-4) flux caused by SN-38. Moreover, SAM attenuated changes in the localization and distribution of ZO-1and Occludin in Caco-2 monolayers induced by SN-38 and protected barrier function by inhibiting activation of the p38 MAPK/p65 NF-κB/MLCK/MLC signaling pathway. These findings provide preliminary evidence for the potential use of SAM in treating diarrhea caused by irinotecan.
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Affiliation(s)
- Lin Xiao
- Department of General Surgery, Peking University First Hospital, No. 8 Xishiku Street, Beijing 100034, China
| | - Weidong Dou
- Department of General Surgery, Peking University First Hospital, No. 8 Xishiku Street, Beijing 100034, China
| | - Yajie Wang
- Department of General Surgery, Peking University First Hospital, No. 8 Xishiku Street, Beijing 100034, China
| | - Huan Deng
- Department of General Surgery, Peking University First Hospital, No. 8 Xishiku Street, Beijing 100034, China
| | - Hao Xu
- Department of General Surgery, Peking University First Hospital, No. 8 Xishiku Street, Beijing 100034, China.
| | - YiSheng Pan
- Department of General Surgery, Peking University First Hospital, No. 8 Xishiku Street, Beijing 100034, China.
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10
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Zhao Y, Zhang Y, Meng S, Chen B, Dong X, Guo X, Guo F, Zhang R, Cui H, Li S. Effects of S-Adenosylmethionine on Cognition in Animals and Humans: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. J Alzheimers Dis 2023; 94:S267-S287. [PMID: 36970898 PMCID: PMC10473070 DOI: 10.3233/jad-221076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND There is increasing evidence that supplementation of S-adenosylmethionine (SAM) can improve cognitive function in animals and humans, although the outcomes are not always inconsistent. OBJECTIVE We conducted a systematic review and meta-analysis to evaluate the correlation between SAM supplementation and improved cognitive function. METHODS We searched studies in the PubMed, Cochrane Library, Embase, Web of Science, and Clinical Trials databases from January 1, 2002 to January 1, 2022. Risk of bias was assessed using the Cochrane risk of bias 2.0 (human studies) and the Systematic Review Center for Laboratory Animal Experimentation risk of bias (animal studies) tools; and evidence quality was evaluated using the Grading of Recommendations Assessment, Development, and Evaluation. STATA software was employed to perform meta-analysis, and the random-effects models was used to evaluate the standardized mean difference with 95% confidence intervals. RESULTS Out of the 2,375 studies screened, 30 studies met the inclusion criteria. Meta-analyses of animal (p = 0.213) and human (p = 0.047) studies showed that there were no significant differences between the SAM supplementation and control groups. The results of the subgroup analyses showed that the animals aged ≤8 weeks (p = 0.027) and the intervention duration >8 weeks (p = 0.009) were significantly different compared to the controls. Additionally, the Morris water maze test (p = 0.005) used to assess the cognitive level of the animals revealed that SAM could enhance spatial learning and memory in animals. CONCLUSION SAM supplementation showed no significant improvement in cognition. Therefore, further studies are needed to assess the effectiveness of SAM supplementation.
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Affiliation(s)
- Yan Zhao
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
- School of Nursing, Hebei Medical University, Shijiazhuang, China
| | - Yizhou Zhang
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Neurodegenerative Disease Mechanism, Shijiazhuang, China
| | - Sijia Meng
- School of Nursing, Hebei Medical University, Shijiazhuang, China
| | - Bingyu Chen
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Xinyi Dong
- School of Nursing, Hebei Medical University, Shijiazhuang, China
| | - Xiaojing Guo
- School of Nursing, Hebei Medical University, Shijiazhuang, China
| | - Fangzhen Guo
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Runjiao Zhang
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Huixian Cui
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Neurodegenerative Disease Mechanism, Shijiazhuang, China
| | - Sha Li
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Neurodegenerative Disease Mechanism, Shijiazhuang, China
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11
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Balieiro AM, Anunciação ELS, Costa CHS, Qayed WS, Silva JRA. Computational Analysis of SAM Analogs as Methyltransferase Inhibitors of nsp16/nsp10 Complex from SARS-CoV-2. Int J Mol Sci 2022; 23:ijms232213972. [PMID: 36430451 PMCID: PMC9697258 DOI: 10.3390/ijms232213972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
Methyltransferases (MTases) enzymes, responsible for RNA capping into severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), are emerging important targets for the design of new anti-SARS-CoV-2 agents. Here, analogs of S-adenosylmethionine (SAM), obtained from the bioisosteric substitution of the sulfonium and amino acid groups, were evaluated by rigorous computational modeling techniques such as molecular dynamics (MD) simulations followed by relative binding free analysis against nsp16/nsp10 complex from SARS-CoV-2. The most potent inhibitor (2a) shows the lowest binding free energy (-58.75 Kcal/mol) and more potency than Sinefungin (SFG) (-39.8 Kcal/mol), a pan-MTase inhibitor, which agrees with experimental observations. Besides, our results suggest that the total binding free energy of each evaluated SAM analog is driven by van der Waals interactions which can explain their poor cell permeability, as observed in experimental essays. Overall, we provide a structural and energetic analysis for the inhibition of the nsp16/nsp10 complex involving the evaluated SAM analogs as potential inhibitors.
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Affiliation(s)
- Alessandra M. Balieiro
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém 66075-110, Brazil
| | - Eduarda L. S. Anunciação
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém 66075-110, Brazil
| | - Clauber H. S. Costa
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém 66075-110, Brazil
- Institute of Chemistry and Center for Computing in Engineering & Sciences, University of Campinas, Campinas, São Paulo 13084-862, Brazil
| | - Wesam S. Qayed
- Medicinal Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - José Rogério A. Silva
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém 66075-110, Brazil
- Correspondence:
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12
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Ramani K, Robinson AE, Berlind J, Fan W, Abeynayake A, Binek A, Barbier-Torres L, Noureddin M, Nissen NN, Yildirim Z, Erbay E, Mato JM, Van Eyk JE, Lu SC. S-adenosylmethionine inhibits la ribonucleoprotein domain family member 1 in murine liver and human liver cancer cells. Hepatology 2022; 75:280-296. [PMID: 34449924 PMCID: PMC8766892 DOI: 10.1002/hep.32130] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/22/2021] [Accepted: 08/09/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND AIMS Methionine adenosyltransferase 1A (MAT1A) is responsible for S-adenosylmethionine (SAMe) biosynthesis in the liver. Mice lacking Mat1a have hepatic SAMe depletion and develop NASH and HCC spontaneously. Several kinases are activated in Mat1a knockout (KO) mice livers. However, characterizing the phospho-proteome and determining whether they contribute to liver pathology remain open for study. Our study aimed to provide this knowledge. APPROACH AND RESULTS We performed phospho-proteomics in Mat1a KO mice livers with and without SAMe treatment to identify SAMe-dependent changes that may contribute to liver pathology. Our studies used Mat1a KO mice at different ages treated with and without SAMe, cell lines, in vitro translation and kinase assays, and human liver specimens. We found that the most striking change was hyperphosphorylation and increased content of La-related protein 1 (LARP1), which, in the unphosphorylated form, negatively regulates translation of 5'-terminal oligopyrimidine (TOP)-containing mRNAs. Consistently, multiple TOP proteins are induced in KO livers. Translation of TOP mRNAs ribosomal protein S3 and ribosomal protein L18 was enhanced by LARP1 overexpression in liver cancer cells. We identified LARP1-T449 as a SAMe-sensitive phospho-site of cyclin-dependent kinase 2 (CDK2). Knocking down CDK2 lowered LARP1 phosphorylation and prevented LARP1-overexpression-mediated increase in translation. LARP1-T449 phosphorylation induced global translation, cell growth, migration, invasion, and expression of oncogenic TOP-ribosomal proteins in HCC cells. LARP1 expression is increased in human NASH and HCC. CONCLUSIONS Our results reveal a SAMe-sensitive mechanism of LARP1 phosphorylation that may be involved in the progression of NASH to HCC.
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Affiliation(s)
- Komal Ramani
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Aaron E. Robinson
- Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305
- Smidt Heart Institute and Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Joshua Berlind
- Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, CA 90033
| | - Wei Fan
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Aushinie Abeynayake
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Aleksandra Binek
- Smidt Heart Institute and Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Lucía Barbier-Torres
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Mazen Noureddin
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048
- Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Nicholas N. Nissen
- Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA 90048
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Zehra Yildirim
- Department of Cardiology, Department of Biomedical Sciences and Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Ebru Erbay
- Department of Cardiology, Department of Biomedical Sciences and Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - José M. Mato
- CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology, Derio, Bizkaia 48160, Spain
| | - Jennifer E. Van Eyk
- Smidt Heart Institute and Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Shelly C. Lu
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048
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Pascale RM, Simile MM, Calvisi DF, Feo CF, Feo F. S-Adenosylmethionine: From the Discovery of Its Inhibition of Tumorigenesis to Its Use as a Therapeutic Agent. Cells 2022; 11:cells11030409. [PMID: 35159219 PMCID: PMC8834208 DOI: 10.3390/cells11030409] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/10/2022] [Accepted: 01/14/2022] [Indexed: 02/07/2023] Open
Abstract
Alterations of methionine cycle in steatohepatitis, cirrhosis, and hepatocellular carcinoma induce MAT1A decrease and MAT2A increase expressions with the consequent decrease of S-adenosyl-L-methionine (SAM). This causes non-alcoholic fatty liver disease (NAFLD). SAM administration antagonizes pathological conditions, including galactosamine, acetaminophen, and ethanol intoxications, characterized by decreased intracellular SAM. Positive therapeutic effects of SAM/vitamin E or SAM/ursodeoxycholic acid in animal models with NAFLD and intrahepatic cholestasis were not confirmed in humans. In in vitro experiments, SAM and betaine potentiate PegIFN-alpha-2a/2b plus ribavirin antiviral effects. SAM plus betaine improves early viral kinetics and increases interferon-stimulated gene expression in patients with viral hepatitis non-responders to pegIFNα/ribavirin. SAM prevents hepatic cirrhosis, induced by CCl4, inhibits experimental tumors growth and is proapoptotic for hepatocellular carcinoma and MCF-7 breast cancer cells. SAM plus Decitabine arrest cancer growth and potentiate doxorubicin effects on breast, head, and neck cancers. Furthermore, SAM enhances the antitumor effect of gemcitabine against pancreatic cancer cells, inhibits growth of human prostate cancer PC-3, colorectal cancer, and osteosarcoma LM-7 and MG-63 cell lines; increases genomic stability of SW480 cells. SAM reduces colorectal cancer progression and inhibits the proliferation of preneoplastic rat liver cells in vivo. The discrepancy between positive results of SAM treatment of experimental tumors and modest effects against human disease may depend on more advanced human disease stage at moment of diagnosis.
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Affiliation(s)
- Rosa M. Pascale
- Department of Medical, Surgical and Experimental Sciences, Division of Experimental Pathology and Oncology, University of Sassari, 07100 Sassari, Italy; (M.M.S.); (D.F.C.); (F.F.)
- Correspondence:
| | - Maria M. Simile
- Department of Medical, Surgical and Experimental Sciences, Division of Experimental Pathology and Oncology, University of Sassari, 07100 Sassari, Italy; (M.M.S.); (D.F.C.); (F.F.)
| | - Diego F. Calvisi
- Department of Medical, Surgical and Experimental Sciences, Division of Experimental Pathology and Oncology, University of Sassari, 07100 Sassari, Italy; (M.M.S.); (D.F.C.); (F.F.)
| | - Claudio F. Feo
- Department of Medical, Surgical and Experimental Sciences, Division of Surgery, University of Sassari, 07100 Sassari, Italy;
| | - Francesco Feo
- Department of Medical, Surgical and Experimental Sciences, Division of Experimental Pathology and Oncology, University of Sassari, 07100 Sassari, Italy; (M.M.S.); (D.F.C.); (F.F.)
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14
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Mimouni NEH, Paiva I, Barbotin AL, Timzoura FE, Plassard D, Le Gras S, Ternier G, Pigny P, Catteau-Jonard S, Simon V, Prevot V, Boutillier AL, Giacobini P. Polycystic ovary syndrome is transmitted via a transgenerational epigenetic process. Cell Metab 2021; 33:513-530.e8. [PMID: 33539777 PMCID: PMC7928942 DOI: 10.1016/j.cmet.2021.01.004] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/20/2020] [Accepted: 01/05/2021] [Indexed: 12/12/2022]
Abstract
Polycystic ovary syndrome (PCOS) is the most common reproductive and metabolic disorder affecting women of reproductive age. PCOS has a strong heritable component, but its pathogenesis has been unclear. Here, we performed RNA sequencing and genome-wide DNA methylation profiling of ovarian tissue from control and third-generation PCOS-like mice. We found that DNA hypomethylation regulates key genes associated with PCOS and that several of the differentially methylated genes are also altered in blood samples from women with PCOS compared with healthy controls. Based on this insight, we treated the PCOS mouse model with the methyl group donor S-adenosylmethionine and found that it corrected their transcriptomic, neuroendocrine, and metabolic defects. These findings show that the transmission of PCOS traits to future generations occurs via an altered landscape of DNA methylation and propose methylome markers as a possible diagnostic landmark for the condition, while also identifying potential candidates for epigenetic-based therapy.
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Affiliation(s)
- Nour El Houda Mimouni
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Postnatal Brain, Lille Neuroscience & Cognition, UMR-S1172, FHU 1000 days for health, 59000 Lille, France
| | - Isabel Paiva
- Université de Strasbourg, UMR 7364 CNRS, Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), 12 Rue Goethe, Strasbourg 67000, France
| | - Anne-Laure Barbotin
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Postnatal Brain, Lille Neuroscience & Cognition, UMR-S1172, FHU 1000 days for health, 59000 Lille, France
| | - Fatima Ezzahra Timzoura
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Postnatal Brain, Lille Neuroscience & Cognition, UMR-S1172, FHU 1000 days for health, 59000 Lille, France
| | - Damien Plassard
- CNRS UMR 7104, INSERM U1258, GenomEast Platform, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, Illkirch, France
| | - Stephanie Le Gras
- CNRS UMR 7104, INSERM U1258, GenomEast Platform, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, Illkirch, France
| | - Gaetan Ternier
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Postnatal Brain, Lille Neuroscience & Cognition, UMR-S1172, FHU 1000 days for health, 59000 Lille, France
| | - Pascal Pigny
- CHU Lille, Service de Biochimie et Hormonologie, Centre de Biologie Pathologie, Lille, France
| | - Sophie Catteau-Jonard
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Postnatal Brain, Lille Neuroscience & Cognition, UMR-S1172, FHU 1000 days for health, 59000 Lille, France; CHU Lille, Service de Gynécologie Médicale, Hôpital Jeanne de Flandre, Lille, France
| | - Virginie Simon
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Postnatal Brain, Lille Neuroscience & Cognition, UMR-S1172, FHU 1000 days for health, 59000 Lille, France; CHU Lille, Service de Gynécologie Médicale, Hôpital Jeanne de Flandre, Lille, France
| | - Vincent Prevot
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Postnatal Brain, Lille Neuroscience & Cognition, UMR-S1172, FHU 1000 days for health, 59000 Lille, France
| | - Anne-Laurence Boutillier
- Université de Strasbourg, UMR 7364 CNRS, Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), 12 Rue Goethe, Strasbourg 67000, France.
| | - Paolo Giacobini
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Postnatal Brain, Lille Neuroscience & Cognition, UMR-S1172, FHU 1000 days for health, 59000 Lille, France.
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15
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Coppola A, Ilisso CP, Stellavato A, Schiraldi C, Caraglia M, Mosca L, Cacciapuoti G, Porcelli M. S-Adenosylmethionine Inhibits Cell Growth and Migration of Triple Negative Breast Cancer Cells through Upregulating MiRNA-34c and MiRNA-449a. Int J Mol Sci 2020; 22:ijms22010286. [PMID: 33396625 PMCID: PMC7795242 DOI: 10.3390/ijms22010286] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/19/2020] [Accepted: 12/25/2020] [Indexed: 12/12/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is one of the most common malignancies worldwide and shows maximum invasiveness and a high risk of metastasis. Recently, many natural compounds have been highlighted as a valuable source of new and less toxic drugs to enhance breast cancer therapy. Among them, S-adenosyl-L-methionine (AdoMet) has emerged as a promising anti-cancer agent. MicroRNA (miRNA or miR)-based gene therapy provides an interesting antitumor approach to integrated cancer therapy. In this study, we evaluated AdoMet-induced modulation of miRNA-34c and miRNA-449a expression in MDA-MB-231 and MDA-MB-468 TNBC cells. We demonstrated that AdoMet upregulates miR-34c and miR-449a expression in both cell lines. We found that the combination of AdoMet with miR-34c or miR-449a mimic strongly potentiated the pro-apoptotic effect of the sulfonium compound by a caspase-dependent mechanism. For the first time, by video time-lapse microscopy, we showed that AdoMet inhibited the in vitro migration of MDA-MB-231 and MDA-MB-468 cells and that the combination with miR-34c or miR-449a mimic strengthened the effect of the sulfonium compound through the modulation of β-catenin and Small Mother Against Decapentaplegic (SMAD) signaling pathways. Our results furnished the first evidence that AdoMet exerts its antitumor effects in TNBC cells through upregulating the expression of miR-34c and miR-449a.
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Affiliation(s)
- Alessandra Coppola
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; (A.C.); (C.P.I.); (M.C.); (M.P.)
| | - Concetta Paola Ilisso
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; (A.C.); (C.P.I.); (M.C.); (M.P.)
| | - Antonietta Stellavato
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; (A.S.); (C.S.)
| | - Chiara Schiraldi
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; (A.S.); (C.S.)
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; (A.C.); (C.P.I.); (M.C.); (M.P.)
| | - Laura Mosca
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; (A.C.); (C.P.I.); (M.C.); (M.P.)
- Correspondence: (L.M.); (G.C.)
| | - Giovanna Cacciapuoti
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; (A.C.); (C.P.I.); (M.C.); (M.P.)
- Correspondence: (L.M.); (G.C.)
| | - Marina Porcelli
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; (A.C.); (C.P.I.); (M.C.); (M.P.)
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Liu Y, Bi T, Yuan F, Gao X, Jia G, Tian Z. S-adenosylmethionine induces apoptosis and cycle arrest of gallbladder carcinoma cells by suppression of JAK2/STAT3 pathways. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:2507-2515. [PMID: 32219484 DOI: 10.1007/s00210-020-01858-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/19/2020] [Indexed: 12/27/2022]
Abstract
S-adenosylmethionine (SAM) is a naturally occurring physiologic molecule found ubiquitously in all mammalian cells and an essential compound in many metabolic pathways. It has been reported to possess many pharmacological properties including cancer-preventive and anticancer effects. However, the precise molecular mechanism involved in its anticancer effect is not yet clear. The present study is conducted to investigate the anticancer activity and the underlying mechanisms of SAM on human gallbladder cancer cells (GBC-SD and SGC-996) in vitro and in vivo. Cells were dealt with SAM and subjected to cell viability, colony formation, Hoechst staining, apoptosis, cycle arrest, western blot, and xenograft tumorigenicity assay. Experimental results showed that SAM could significantly inhibit the growth and proliferation and induce the apoptosis as well as cell cycle arrest in G0/G1 phase of GBC-SD and SGC-996 cells in a dose-dependent manner in vitro. The expression levels of p-JAK2, p-STAT3, Mcl-1, and Bcl-XL were significantly downregulated. In addition, inhibition of the JAK2/STAT3 pathway significantly enhanced the anti-apoptotic effect of SAM, suggesting the key roles of JAK2/STAT3 in the process. More importantly, our in vivo studies demonstrated that administration of SAM could significantly decrease the tumor weight and volume and immunohistochemistry analysis proved the downregulation of p-JAK2 and p-STAT3 in tumor tissues following SAM treatment, consistent with our in vitro results. In summary, our findings indicated that SAM can inhibit cell proliferation and induce apoptosis as well as cycle arrest of GBC cells by suppression of JAK2/STAT3 pathways and the dramatic effects of SAM hinting that SAM might be a useful therapeutic option for patients suffering from gallbladder cancer.
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Affiliation(s)
- Yan Liu
- Department of Surgery for Vascular Thyroid and Hernia, Xuzhou Central Hospital, Xuzhou, Jiangsu, 221009, People's Republic of China
| | - Tingting Bi
- Department of Gastroenterology, Xuzhou Central Hospital, Xuzhou, Jiangsu, 221009, People's Republic of China
| | - Fukang Yuan
- Department of Surgery for Vascular Thyroid and Hernia, Xuzhou Central Hospital, Xuzhou, Jiangsu, 221009, People's Republic of China
| | - Xinbao Gao
- Department of Surgery for Vascular Thyroid and Hernia, Xuzhou Central Hospital, Xuzhou, Jiangsu, 221009, People's Republic of China
| | - Gaolei Jia
- Department of Surgery for Vascular Thyroid and Hernia, Xuzhou Central Hospital, Xuzhou, Jiangsu, 221009, People's Republic of China.
| | - Zhilong Tian
- Department of Surgery for Vascular Thyroid and Hernia, Xuzhou Central Hospital, Xuzhou, Jiangsu, 221009, People's Republic of China.
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17
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Jung S, Park J, Ko KS. Lipopolysaccharide-induced innate immune responses are exacerbated by Prohibitin 1 deficiency and mitigated by S-adenosylmethionine in murine macrophages. PLoS One 2020; 15:e0241224. [PMID: 33175859 PMCID: PMC7657527 DOI: 10.1371/journal.pone.0241224] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 10/09/2020] [Indexed: 12/21/2022] Open
Abstract
Prohibitin 1 (Phb1) is a pleiotropic protein with multiple functions in mammalian cells including cell cycle regulation and mitochondrial protein stabilization. It has been proposed as a potential therapeutic target for a variety of diseases including inflammatory diseases. In this study, we investigated the potential immune-modulatory functions of Phb1 and anti-inflammatory properties of S-adenosylmethionine (SAMe) using macrophages, which play a major role in the innate immune system. The results showed that expressions of Phb1 mRNA and protein were reduced in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells (p<0.05). Phb1 knockdown further ameliorated the mRNA expression of pro- and anti-inflammatory cytokines such as TNF-α, IL-1α, IL-1β, IL-6, and IL10 in LPS-stimulated RAW 264.7 cells. SAMe significantly attenuated LPS-induced inflammatory responses such as IL-1β, IL-10, Nos2, and NO production in the presence of siPhb1. Luciferase reporter assay was conducted to determine the mechanisms underlying the effects of Phb1 and SAMe on the immune system. The luciferase activity of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) was significantly increased in LPS-treated RAW 264.7 cells. In addition, the luciferase reporter assay showed increased NF-κB activation in Phb1 knockdown RAW 264.7 cells (p<0.1) and SAMe treatment attenuated the NF-κB luciferase activity in Phb1 knockdown RAW 264.7 cells. Based on the results, we concluded that Phb1 possibly modulates the inflammatory response whereas SAMe has an anti-inflammatory effect on Phb1 knockdown macrophage cells. Furthermore, Phb1 expression level has potential properties of affecting on innate immune system by modulating the NF-κB signaling pathway.
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Affiliation(s)
- Soohan Jung
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, Korea
| | - Jaehee Park
- Department of Nutritional Science and Food Management, College of Science and Industry Convergence, Ewha Womans University, Seoul, Korea
| | - Kwang Suk Ko
- Department of Nutritional Science and Food Management, College of Science and Industry Convergence, Ewha Womans University, Seoul, Korea
- * E-mail:
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18
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Vergani L, Baldini F, Khalil M, Voci A, Putignano P, Miraglia N. New Perspectives of S-Adenosylmethionine (SAMe) Applications to Attenuate Fatty Acid-Induced Steatosis and Oxidative Stress in Hepatic and Endothelial Cells. Molecules 2020; 25:molecules25184237. [PMID: 32942773 PMCID: PMC7570632 DOI: 10.3390/molecules25184237] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 12/26/2022] Open
Abstract
S-adenosylmethionine (SAMe) is an endogenous methyl donor derived from ATP and methionine that has pleiotropic functions. Most SAMe is synthetized and consumed in the liver, where it acts as the main methylating agent and in protection against the free radical toxicity. Previous studies have shown that the administration of SAMe as a supernutrient exerted many beneficial effects in various tissues, mainly in the liver. In the present study, we aimed to clarify the direct effects of SAMe on fatty acid-induced steatosis and oxidative stress in hepatic and endothelial cells. Hepatoma FaO cells and endothelial HECV cells exposed to a mixture of oleate/palmitate are reliable models for hepatic steatosis and endothelium dysfunction, respectively. Our findings indicate that SAMe was able to significantly ameliorate lipid accumulation and oxidative stress in hepatic cells, mainly through promoting mitochondrial fatty acid entry for β-oxidation and external triglyceride release. SAMe also reverted both lipid accumulation and oxidant production (i.e., ROS and NO) in endothelial cells. In conclusion, these outcomes suggest promising beneficial applications of SAMe as a nutraceutical for metabolic disorders occurring in fatty liver and endothelium dysfunction.
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Affiliation(s)
- Laura Vergani
- Department of Earth, Environment and Life Science, University of Genoa, 16132 Genova, Italy;
- Correspondence: ; Tel.: +39-0103538403; Fax: +39-0103538267
| | - Francesca Baldini
- Department of Experimemtal Medicine, University of Genoa, 16132 Genova, Italy;
| | - Mohamad Khalil
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy;
| | - Adriana Voci
- Department of Earth, Environment and Life Science, University of Genoa, 16132 Genova, Italy;
| | | | - Niccolò Miraglia
- Clinical & Pre-clinical Development, Gnosis by Lesaffre S.p.A, 20832 Desio, Italy;
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Zsigrai S, Kalmár A, Nagy ZB, Barták BK, Valcz G, Szigeti KA, Galamb O, Dankó T, Sebestyén A, Barna G, Szabó V, Pipek O, Medgyes-Horváth A, Csabai I, Tulassay Z, Igaz P, Takács I, Molnár B. S-Adenosylmethionine Treatment of Colorectal Cancer Cell Lines Alters DNA Methylation, DNA Repair and Tumor Progression-Related Gene Expression. Cells 2020; 9:cells9081864. [PMID: 32784836 PMCID: PMC7464653 DOI: 10.3390/cells9081864] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/03/2020] [Accepted: 08/07/2020] [Indexed: 12/24/2022] Open
Abstract
Global DNA hypomethylation is a characteristic feature of colorectal carcinoma (CRC). The tumor inhibitory effect of S-adenosylmethionine (SAM) methyl donor has been described in certain cancers including CRC. However, the molecular impact of SAM treatment on CRC cell lines with distinct genetic features has not been evaluated comprehensively. HT-29 and SW480 cells were treated with 0.5 and 1 mmol/L SAM for 48 h followed by cell proliferation measurements, whole-genome transcriptome and methylome analyses, DNA stability assessments and exome sequencing. SAM reduced cell number and increased senescence by causing S phase arrest, besides, multiple EMT-related genes (e.g., TGFB1) were downregulated in both cell lines. Alteration in the global DNA methylation level was not observed, but certain methylation changes in gene promoters were detected. SAM-induced γ-H2AX elevation could be associated with activated DNA repair pathway showing upregulated gene expression (e.g., HUS1). Remarkable genomic stability elevation, namely, decreased micronucleus number and comet tail length was observed only in SW480 after treatment. SAM has the potential to induce senescence, DNA repair, genome stability and to reduce CRC progression. However, the different therapeutic responses of HT-29 and SW480 to SAM emphasize the importance of the molecular characterization of CRC cases prior to methyl donor supplementation.
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Affiliation(s)
- Sára Zsigrai
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
- Correspondence:
| | - Alexandra Kalmár
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
- MTA-SE Molecular Medicine Research Group, Hungarian Academy of Sciences, 1051 Budapest, Hungary;
| | - Zsófia B. Nagy
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
| | - Barbara K. Barták
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
| | - Gábor Valcz
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
- MTA-SE Molecular Medicine Research Group, Hungarian Academy of Sciences, 1051 Budapest, Hungary;
| | - Krisztina A. Szigeti
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
| | - Orsolya Galamb
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
- MTA-SE Molecular Medicine Research Group, Hungarian Academy of Sciences, 1051 Budapest, Hungary;
| | - Titanilla Dankó
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary; (T.D.); (A.S.); (G.B.); (V.S.)
| | - Anna Sebestyén
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary; (T.D.); (A.S.); (G.B.); (V.S.)
| | - Gábor Barna
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary; (T.D.); (A.S.); (G.B.); (V.S.)
| | - Vanessza Szabó
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary; (T.D.); (A.S.); (G.B.); (V.S.)
| | - Orsolya Pipek
- Department of Physics of Complex Systems, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (O.P.); (A.M.-H.); (I.C.)
| | - Anna Medgyes-Horváth
- Department of Physics of Complex Systems, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (O.P.); (A.M.-H.); (I.C.)
| | - István Csabai
- Department of Physics of Complex Systems, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (O.P.); (A.M.-H.); (I.C.)
| | - Zsolt Tulassay
- MTA-SE Molecular Medicine Research Group, Hungarian Academy of Sciences, 1051 Budapest, Hungary;
- Department of Internal Medicine and Hematology, Semmelweis University, 1088 Budapest, Hungary
| | - Péter Igaz
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
- MTA-SE Molecular Medicine Research Group, Hungarian Academy of Sciences, 1051 Budapest, Hungary;
| | - István Takács
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
| | - Béla Molnár
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (A.K.); (Z.B.N.); (B.K.B.); (G.V.); (K.A.S.); (O.G.); (P.I.); (I.T.); (B.M.)
- MTA-SE Molecular Medicine Research Group, Hungarian Academy of Sciences, 1051 Budapest, Hungary;
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20
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Ahmed-Belkacem R, Sutto-Ortiz P, Guiraud M, Canard B, Vasseur JJ, Decroly E, Debart F. Synthesis of adenine dinucleosides SAM analogs as specific inhibitors of SARS-CoV nsp14 RNA cap guanine-N7-methyltransferase. Eur J Med Chem 2020; 201:112557. [PMID: 32563813 PMCID: PMC7291971 DOI: 10.1016/j.ejmech.2020.112557] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/26/2020] [Accepted: 06/08/2020] [Indexed: 12/18/2022]
Abstract
The spreading of new viruses is known to provoke global human health threat. The current COVID-19 pandemic caused by the recently emerged coronavirus SARS-CoV-2 is one significant and unfortunate example of what the world will have to face in the future with emerging viruses in absence of appropriate treatment. The discovery of potent and specific antiviral inhibitors and/or vaccines to fight these massive outbreaks is an urgent research priority. Enzymes involved in the capping pathway of viruses and more specifically RNA N7- or 2′O-methyltransferases (MTases) are now admitted as potential targets for antiviral chemotherapy. We designed bisubstrate inhibitors by mimicking the transition state of the 2′-O-methylation of the cap RNA in order to block viral 2′-O MTases. This work resulted in the synthesis of 16 adenine dinucleosides with both adenosines connected by various nitrogen-containing linkers. Unexpectedly, all the bisubstrate compounds were barely active against 2′-O MTases of several flaviviruses or SARS-CoV but surprisingly, seven of them showed efficient and specific inhibition against SARS-CoV N7-MTase (nsp14) in the micromolar to submicromolar range. The most active nsp14 inhibitor identified is as potent as but particularly more specific than the broad-spectrum MTase inhibitor, sinefungin. Molecular docking suggests that the inhibitor binds to a pocket formed by the S-adenosyl methionine (SAM) and cap RNA binding sites, conserved among SARS-CoV nsp14. These dinucleoside SAM analogs will serve as starting points for the development of next inhibitors for SARS-CoV-2 nsp14 N7-MTase.
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Affiliation(s)
| | - Priscila Sutto-Ortiz
- AFMB, CNRS, Aix-Marseille University, UMR 7257, 163 Avenue de Luminy, Marseille, France
| | - Mathis Guiraud
- IBMM, CNRS, University of Montpellier, ENSCM, Montpellier, France
| | - Bruno Canard
- AFMB, CNRS, Aix-Marseille University, UMR 7257, 163 Avenue de Luminy, Marseille, France
| | | | - Etienne Decroly
- AFMB, CNRS, Aix-Marseille University, UMR 7257, 163 Avenue de Luminy, Marseille, France.
| | - Françoise Debart
- IBMM, CNRS, University of Montpellier, ENSCM, Montpellier, France.
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21
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Pascale RM, Peitta G, Simile MM, Feo F. Alterations of Methionine Metabolism as Potential Targets for the Prevention and Therapy of Hepatocellular Carcinoma. ACTA ACUST UNITED AC 2019; 55:medicina55060296. [PMID: 31234428 PMCID: PMC6631235 DOI: 10.3390/medicina55060296] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 12/12/2022]
Abstract
Several researchers have analyzed the alterations of the methionine cycle associated with liver disease to clarify the pathogenesis of human hepatocellular carcinoma (HCC) and improve the preventive and the therapeutic approaches to this tumor. Different alterations of the methionine cycle leading to a decrease of S-adenosylmethionine (SAM) occur in hepatitis, liver steatosis, liver cirrhosis, and HCC. The reproduction of these changes in MAT1A-KO mice, prone to develop hepatitis and HCC, demonstrates the pathogenetic role of MAT1A gene under-regulation associated with up-regulation of the MAT2A gene (MAT1A:MAT2A switch), encoding the SAM synthesizing enzymes, methyladenosyltransferase I/III (MATI/III) and methyladenosyltransferase II (MATII), respectively. This leads to a rise of MATII, inhibited by the reaction product, with a consequent decrease of SAM synthesis. Attempts to increase the SAM pool by injecting exogenous SAM have beneficial effects in experimental alcoholic and non-alcoholic steatohepatitis and hepatocarcinogenesis. Mechanisms involved in hepatocarcinogenesis inhibition by SAM include: (1) antioxidative effects due to inhibition of nitric oxide (NO•) production, a rise in reduced glutathione (GSH) synthesis, stabilization of the DNA repair protein Apurinic/Apyrimidinic Endonuclease 1 (APEX1); (2) inhibition of c-myc, H-ras, and K-ras expression, prevention of NF-kB activation, and induction of overexpression of the oncosuppressor PP2A gene; (3) an increase in expression of the ERK inhibitor DUSP1; (4) inhibition of PI3K/AKT expression and down-regulation of C/EBPα and UCA1 gene transcripts; (5) blocking LKB1/AMPK activation; (6) DNA and protein methylation. Different clinical trials have documented curative effects of SAM in alcoholic liver disease. Furthermore, SAM enhances the IFN-α antiviral activity and protects against hepatic ischemia-reperfusion injury during hepatectomy in HCC patients with chronic hepatitis B virus (HBV) infection. However, although SAM prevents experimental tumors, it is not curative against already established experimental and human HCCs. The recent observation that the inhibition of MAT2A and MAT2B expression by miRNAs leads to a rise of endogenous SAM and strong inhibition of cancer cell growth could open new perspectives to the treatment of HCC.
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Affiliation(s)
- Rosa M Pascale
- Department of Clinical, Surgery and Experimental Sciences, Division of Experimental Pathology and Oncology, University of Sassari, 07100 Sassari, Italy.
| | - Graziella Peitta
- Department of Clinical, Surgery and Experimental Sciences, Division of Experimental Pathology and Oncology, University of Sassari, 07100 Sassari, Italy.
| | - Maria M Simile
- Department of Clinical, Surgery and Experimental Sciences, Division of Experimental Pathology and Oncology, University of Sassari, 07100 Sassari, Italy.
| | - Francesco Feo
- Department of Clinical, Surgery and Experimental Sciences, Division of Experimental Pathology and Oncology, University of Sassari, 07100 Sassari, Italy.
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22
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Targum SD, Cameron BR, Ferreira L, MacDonald ID. An augmentation study of MSI-195 (S-adenosylmethionine) in Major Depressive Disorder. J Psychiatr Res 2018; 107:86-96. [PMID: 30368163 DOI: 10.1016/j.jpsychires.2018.10.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/13/2018] [Accepted: 10/16/2018] [Indexed: 12/28/2022]
Abstract
We conducted a 6-week double-blind, placebo-controlled, augmentation study comparing the efficacy and safety of MSI-195 800 mg (a proprietary formulation of S-adenosylmethionine) or placebo added to ongoing antidepressant medication (ADT) in acutely depressed subjects with Major Depressive Disorder (MDD) who had experienced an inadequate response to their ongoing ADT (The Horizon Study, ClinicalTrials.gov NCT01912196). There were 234 eligible subjects randomized to either MSI-195 (n = 118) or placebo (n = 116). There were no overall statistically significant differences found between MSI-195 added to ongoing ADT compared to placebo on any of 3 depression-rating instruments (HamD17, MADRS, IDS-SR30) in the ITT set. MSI-195 was generally safe and well tolerated with predominantly mild gastrointestinal side effects. Post-hoc analyses examined factors that might have affected study outcome. The ITT set was divided into subjects enrolled during the 1st half (first nine months) and 2nd half of the study. MSI-195 added to ongoing ADT was significantly better than placebo on both the HamD17 and MADRS in the 1st half (p = 0.03 and 0.02 respectively), but not in the 2nd half of the study. Several demographic and clinical characteristics were significantly different between the two study segments including body mass index, pre-randomization symptom severity fluctuation, number of lifetime depressive episodes, and anxious depression sub-type. Thus, the characteristics of the enrolled subjects changed between the 1st and 2nd half of the study. These post-hoc findings highlight the inherent challenges encountered for subject selection in double-blind, placebo controlled trials and compel further investigation of enrollment criteria and moderating factors that affect treatment. The favorable safety profile and clinical benefit observed with MSI-195 in the 1st half of this study warrant further investigation in MDD.
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Affiliation(s)
- Steven D Targum
- MSI Methylation Sciences Inc, Burnaby, BC, Canada; Bracket Global LLC, Boston, MA, USA.
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23
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Mateos J, Fafián-Labora J, Morente-López M, Lesende-Rodriguez I, Monserrat L, Ódena MA, de Oliveira E, de Toro J, Arufe MC. Next-Generation Sequencing and Quantitative Proteomics of Hutchinson-Gilford progeria syndrome-derived cells point to a role of nucleotide metabolism in premature aging. PLoS One 2018; 13:e0205878. [PMID: 30379953 PMCID: PMC6209416 DOI: 10.1371/journal.pone.0205878] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 10/03/2018] [Indexed: 02/05/2023] Open
Abstract
Hutchinson-Gilford progeria syndrome (HGPS) is a very rare fatal disease characterized for accelerated aging. Although the causal agent, a point mutation in LMNA gene, was identified more than a decade ago, the molecular mechanisms underlying HGPS are still not fully understood and, currently, there is no cure for the patients, which die at a mean age of thirteen. With the aim of unraveling non-previously altered molecular pathways in the premature aging process, human cell lines from HGPS patients and from healthy parental controls were studied in parallel using Next-Generation Sequencing (RNAseq) and High-Resolution Quantitative Proteomics (iTRAQ) techniques. After selection of significant proteins and transcripts and crosschecking of the results a small set of protein/transcript pairs were chosen for validation. One of those proteins, ribose-phosphate pyrophosphokinase 1 (PRPS1), is essential for nucleotide synthesis. PRPS1 loss-of-function mutants present lower levels of purine. PRPS1 protein and transcript levels are detected as significantly decreased in HGPS cell lines vs. healthy parental controls. This modulation was orthogonally confirmed by targeted techniques in cell lines and also in an animal model of Progeria, the ZMPSTE24 knock-out mouse. In addition, functional experiments through supplementation with S-adenosyl-methionine (SAMe), a metabolite that is an alternative source of purine, were done. Results indicate that SAMe has a positive effect in the proliferative capacity and reduces senescence-associated Beta-galactosidase staining of the HPGS cell lines. Altogether, our data suggests that nucleotide and, specifically, purine-metabolism, are altered in premature aging, opening a new window for the therapeutic treatment of the disease.
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Affiliation(s)
- Jesús Mateos
- Grupo de Terapia Celular y Medicina Regenerativa, Dpto. Ciencias Biomédicas, Medicina y Fisioterapia, Facultad de Ciencias de la Salud, Universidade da Coruña, INIBIC-CHUAC
| | - Juan Fafián-Labora
- Grupo de Terapia Celular y Medicina Regenerativa, Dpto. Ciencias Biomédicas, Medicina y Fisioterapia, Facultad de Ciencias de la Salud, Universidade da Coruña, INIBIC-CHUAC
| | - Miriam Morente-López
- Grupo de Terapia Celular y Medicina Regenerativa, Dpto. Ciencias Biomédicas, Medicina y Fisioterapia, Facultad de Ciencias de la Salud, Universidade da Coruña, INIBIC-CHUAC
| | | | | | - María A. Ódena
- Proteomics Platform–Barcelona Science Park, Barcelona, Spain
| | | | - Javier de Toro
- Grupo de Terapia Celular y Medicina Regenerativa, Dpto. Ciencias Biomédicas, Medicina y Fisioterapia, Facultad de Ciencias de la Salud, Universidade da Coruña, INIBIC-CHUAC
| | - María C. Arufe
- Grupo de Terapia Celular y Medicina Regenerativa, Dpto. Ciencias Biomédicas, Medicina y Fisioterapia, Facultad de Ciencias de la Salud, Universidade da Coruña, INIBIC-CHUAC
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24
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Patel MM, Volkov OA, Leija C, Lemoff A, Phillips MA. A dual regulatory circuit consisting of S-adenosylmethionine decarboxylase protein and its reaction product controls expression of the paralogous activator prozyme in Trypanosoma brucei. PLoS Pathog 2018; 14:e1007404. [PMID: 30365568 PMCID: PMC6221367 DOI: 10.1371/journal.ppat.1007404] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/07/2018] [Accepted: 10/12/2018] [Indexed: 01/12/2023] Open
Abstract
Polyamines are essential for cell growth of eukaryotes including the etiologic agent of human African trypanosomiasis (HAT), Trypanosoma brucei. In trypanosomatids, a key enzyme in the polyamine biosynthetic pathway, S-adenosylmethionine decarboxylase (TbAdoMetDC) heterodimerizes with a unique catalytically-dead paralog called prozyme to form the active enzyme complex. In higher eukaryotes, polyamine metabolism is subject to tight feedback regulation by spermidine-dependent mechanisms that are absent in trypanosomatids. Instead, in T. brucei an alternative regulatory strategy based on TbAdoMetDC prozyme has evolved. We previously demonstrated that prozyme protein levels increase in response to loss of TbAdoMetDC activity. Herein, we show that prozyme levels are under translational control by monitoring incorporation of deuterated leucine into nascent prozyme protein. We furthermore identify pathway factors that regulate prozyme mRNA translation. We find evidence for a regulatory feedback mechanism in which TbAdoMetDC protein and decarboxylated AdoMet (dcAdoMet) act as suppressors of prozyme translation. In TbAdoMetDC null cells expressing the human AdoMetDC enzyme, prozyme levels are constitutively upregulated. Wild-type prozyme levels are restored by complementation with either TbAdoMetDC or an active site mutant, suggesting that TbAdoMetDC possesses an enzyme activity-independent function that inhibits prozyme translation. Depletion of dcAdoMet pools by three independent strategies: inhibition/knockdown of TbAdoMetDC, knockdown of AdoMet synthase, or methionine starvation, each cause prozyme upregulation, providing independent evidence that dcAdoMet functions as a metabolic signal for regulation of the polyamine pathway in T. brucei. These findings highlight a potential regulatory paradigm employing enzymes and pseudoenzymes that may have broad implications in biology. Trypanosoma brucei is a single-celled eukaryotic pathogen and the causative agent of human African trypanosomiasis (HAT). Polyamines are organic polycations that are essential for growth in T. brucei to facilitate protein translation and to maintain redox homeostasis. The pathway is the target of eflornithine, a current frontline therapy for treatment of HAT. Polyamine biosynthetic enzymes are regulated at multiple levels in mammals (e.g. transcription, translation and protein turnover), but in contrast, T. brucei lacks these mechanisms. Instead in T. brucei a central enzyme in polyamine metabolism called AdoMetDC must form a complex with a sister protein (termed a pseudoenzyme) to be active. Herein, we show that cellular levels of this sister protein we call prozyme are in turn feedback regulated by both AdoMetDC and by its reaction product in response to cell treatments that reduce pathway output. This regulatory paradigm highlights how pseudoenzymes can evolve to play an important role in metabolic pathway regulation and in organismal fitness.
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Affiliation(s)
- Manish M. Patel
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Harry Hines Blvd, Dallas, TX, United States of America
| | - Oleg A. Volkov
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Harry Hines Blvd, Dallas, TX, United States of America
| | - Christopher Leija
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Harry Hines Blvd, Dallas, TX, United States of America
| | - Andrew Lemoff
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Harry Hines Blvd, Dallas, TX, United States of America
| | - Margaret A. Phillips
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Harry Hines Blvd, Dallas, TX, United States of America
- * E-mail:
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25
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Battaglia-Hsu SF, Ghemrawi R, Coelho D, Dreumont N, Mosca P, Hergalant S, Gauchotte G, Sequeira JM, Ndiongue M, Houlgatte R, Alberto JM, Umoret R, Robert A, Paoli J, Jung M, Quadros EV, Guéant JL. Inherited disorders of cobalamin metabolism disrupt nucleocytoplasmic transport of mRNA through impaired methylation/phosphorylation of ELAVL1/HuR. Nucleic Acids Res 2018; 46:7844-7857. [PMID: 30016500 PMCID: PMC6125644 DOI: 10.1093/nar/gky634] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/26/2018] [Accepted: 07/12/2018] [Indexed: 12/12/2022] Open
Abstract
The molecular mechanisms that underlie the neurological manifestations of patients with inherited diseases of vitamin B12 (cobalamin) metabolism remain to date obscure. We observed transcriptomic changes of genes involved in RNA metabolism and endoplasmic reticulum stress in a neuronal cell model with impaired cobalamin metabolism. These changes were related to the subcellular mislocalization of several RNA binding proteins, including the ELAVL1/HuR protein implicated in neuronal stress, in this cell model and in patient fibroblasts with inborn errors of cobalamin metabolism and Cd320 knockout mice. The decreased interaction of ELAVL1/HuR with the CRM1/exportin protein of the nuclear pore complex and its subsequent mislocalization resulted from hypomethylation at R-217 produced by decreased S-adenosylmethionine and protein methyl transferase CARM1 and dephosphorylation at S221 by increased protein phosphatase PP2A. The mislocalization of ELAVL1/HuR triggered the decreased expression of SIRT1 deacetylase and genes involved in brain development, neuroplasticity, myelin formation, and brain aging. The mislocalization was reversible upon treatment with siPpp2ca, cobalamin, S-adenosylmethionine, or PP2A inhibitor okadaic acid. In conclusion, our data highlight the key role of the disruption of ELAVL1/HuR nuclear export, with genomic changes consistent with the effects of inborn errors of Cbl metabolisms on brain development, neuroplasticity and myelin formation.
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Affiliation(s)
- Shyue-Fang Battaglia-Hsu
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Rose Ghemrawi
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - David Coelho
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Natacha Dreumont
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Pauline Mosca
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Sébastien Hergalant
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Guillaume Gauchotte
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Jeffrey M Sequeira
- Division of Hematology/Oncology, Department of Medicine, SUNY-Downstate Medical Center, Brooklyn, New York, NY, USA
| | - Mariam Ndiongue
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Rémi Houlgatte
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Jean-Marc Alberto
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Remy Umoret
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Aurélie Robert
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Justine Paoli
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
| | - Martin Jung
- Department of Medical Biochemistry and Molecular Biology, Saarland University, Building 44, Homburg 66421, Germany
| | - Edward V Quadros
- Division of Hematology/Oncology, Department of Medicine, SUNY-Downstate Medical Center, Brooklyn, New York, NY, USA
| | - Jean-Louis Guéant
- INSERM UMRS 954 NGERE – Nutrition, Genetics, and Environmental Risk Exposure and National Center of Inborn Errors of Metabolism, Faculty of Medicine of Nancy, University of Lorraine and University Regional Hospital Center of Nancy, Vandoeuvre-lès-Nancy, F-54000, France
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Sadek KM, Lebda MA, Nasr NE, Nasr SM, El-Sayed Y. Role of lncRNAs as prognostic markers of hepatic cancer and potential therapeutic targeting by S-adenosylmethionine via inhibiting PI3K/Akt signaling pathways. Environ Sci Pollut Res Int 2018; 25:20057-20070. [PMID: 29748795 DOI: 10.1007/s11356-018-2179-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/30/2018] [Indexed: 06/08/2023]
Abstract
Hepatic cancer (HCC) is a well-identified dilemma throughout the world, and hence, the molecular mechanisms and strategy for preventive protection against this malignancy are critical. S-adenosylmethionine (SAM) is a unique methyl granter in vast reactions, including DNA methylation, and secures the genome against hypomethylation, which is a hallmark of tumors. Consequently, SAM may control the rate of gene expression. The objective of this investigation was to evaluate the expression of long noncoding RNAs (lncRNAs) transcript involved in hepatic tumorigenesis, including additional coding CEBPA (ecCEBPA) and urothelial carcinoma related 1 (UCA1), antioxidant enzymes transcripts, and relevant signaling pathway in diethylnitrosamine (DEN)-prompted HCC along with their conceivable targeting by SAM at different stages of HCC in rats. Our outcomes revealed that SAM particularly when given at the starting phase downregulates ecCEBPA and UCA1 gene transcripts and ameliorate histopathological alterations in DEN-initiated HCC. Interestingly, SAM attenuates DEN-induced upregulation of PI3K/Akt protein expression. However, SAM upregulates the antioxidant enzymes mRNA transcripts and effectively diminishing DNA oxidation. The results of a DNA fragmentation assay further support the capacity of SAM to ameliorate DEN-induced hepatic malignancy. These results revealed the role of ecCEBPA and UCA1 in HCC and suggest that these lncRNAs may be helpful as prognostic and analytical biomarkers of HCC. Curiously, SAM readily targets the studied genes via inhibiting PI3K/Akt signaling pathway, which should make SAM an appealing agent for both chemoprevention and treatment of HCC.
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Affiliation(s)
- Kadry M Sadek
- Department of Biochemistry, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt.
| | - Mohamed A Lebda
- Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Nasr E Nasr
- Department of Biochemistry, Faculty of Veterinary Medicine, Kafr El-Sheikh University, Kafr El-Sheikh, Egypt
| | - Sherif M Nasr
- Department of Molecular Biology and Genetics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Yasser El-Sayed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
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Tang Y, Chu H, Cao G, Du X, Min X, Wan C. S-Adenosylmethionine attenuates bile duct early warm ischemia reperfusion injury after rat liver transplantation. Mol Immunol 2018; 95:83-90. [PMID: 29428575 DOI: 10.1016/j.molimm.2018.01.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/10/2017] [Accepted: 01/25/2018] [Indexed: 12/13/2022]
Abstract
Warm ischemia reperfusion injury (IRI) plays a key role in biliary complication, which is a substantial vulnerability of liver transplantation. The early pathophysiological changes of IRI are characterized by an excessive inflammatory response. S-Adenosylmethionine (SAM) is an important metabolic intermediate that modulates inflammatory reactions; however, its role in bile duct warm IRI is not known. In this study, male rats were treated with or without SAM (170 μmol/kg body weight) after orthotopic autologous liver transplantation. The histopathological observations showed that bile duct injury in the IRI group was more serious than in the SAM group. The alanine aminotransferase (ALT), alkaline phosphatase (ALP) and direct bilirubin (DBIL) levels in the serum of the IRI group were significantly increased compared to the SAM group (P < .05). Simultaneously, SAM effectively improved the survival of the transplant recipients. Furthermore, the H2O2 and malondialdehyde (MDA) of the IRI group were much higher compared to the SAM group (P < .05). The GSH/GSSG ratio in the SAM group was significantly increased by SAM treatment compared to the IRI group (P < .05). SAM administration significantly inhibited macrophage infiltration in liver and bile duct tissues, down-regulated TNF-α levels and up-regulated IL-10 expression in bile duct tissues compared to the IRI group (P < .05). The number of apoptotic biliary epithelial cells and caspase-3-positive cells in IRI rat livers were much higher compared to those in SAM-treated rats at 24 h after liver transplantation (P < .05). These data suggested that SAM protected bile ducts against warm IRI by suppressing oxidative stress, inflammatory reactions and apoptosis of biliary epithelial cells after liver transplantation.α.
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Affiliation(s)
- Yong Tang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hongpeng Chu
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Guojun Cao
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaolong Du
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaobo Min
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chidan Wan
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Lutsenko RV, Sydorenko AH, Bobyriov VM. Anhedonia at experimental models of chronic stress and its correction. Wiad Lek 2017; 70:745-750. [PMID: 29064798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Different types of chronic stress lead to neurotic and depressive disorders. Key symptoms of these disorders are anhedonia and correction of which will indicate the efficacy of proposed therapy. The aim of the paper is to investigate the influence of amide 2-hydroxy-N-naftalen-1-il-2-(2-oxo-1,2-dihidro-indole-3-iliden) and ethyl ether 4-[2-hydroxy-2-(2-oxo-1,2-dihidro-indole-3-iliden)-acetamin]-butyric acid on anhedonia after the experimental neurosis and chronic moderate stress in rats. MATERIALS AND METHODS It was studied the influence of therapeutic and preventive administration of substances 18 and E-38 in the dosage of 12mg/kg during chronic mild stress "conflict of afferent activation" during 30 days and depression-like behavior chronic mild stress that modeled 8 weeks. Results of investigation: Experimental neurosis caused decrease of number of comings to drinking-bowl, decrease of total number of drank sucrose and decrease of the percent of drank water with sugar in comparison with intact animals. Analogical but more significant changes were noticed during depression-like behavior. The use of amide 2-oxoindolin-3-glyoxylic acid based on neurosis counters effectively the development of anhedonia. Substance 18 increased the number of comings to drinking-bowl with sucrose and increased the amount of the number of drank water with sucrose in comparison with control pathology without correction. The substance possibly assists in use of solution with sucrose among water and does not compromise reference-preparation such as diazepam. The administration of ethyl ether of 2-oxoindolin-3-glyoxylic acid at chronic mild stress possibly increased the number of comings to the drinking-bowl and increased the number of drank sucrose in comparison with control pathology and it was more effective than imipramine and countered anhedonia. CONCLUSIONS It was indicated that during 30 day experimental neurosis and 8 week depression-like behavior cause the development of anhedonia. Therapeutic use of amide 2-hydroxy-N-naftalen-1-il-2-(2-oxo-1,2-dihidro-indole-3-iliden) and ethyl ether 4-[2-hydroxy-2-(2-oxo-1,2-dihidro-indole-3-iliden)-acetamin]-butyric acid corrected effectively anhedonia after experimental neurosis and chronic mild stress in rats.
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Affiliation(s)
- Ruslan V Lutsenko
- Higher State Educational Establishment Of Ukraine, Ukrainian Medical Stomatological Academy, Poltava, Ukraine
| | - Antonina H Sydorenko
- Higher State Educational Establishment Of Ukraine, Ukrainian Medical Stomatological Academy, Poltava, Ukraine
| | - Viktor M Bobyriov
- Higher State Educational Establishment Of Ukraine, Ukrainian Medical Stomatological Academy, Poltava, Ukraine
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Ma D, Shen B, Seewoo V, Tong H, Yang W, Cheng X, Jin Z, Peng C, Qiu W. GADD45β induction by S-adenosylmethionine inhibits hepatocellular carcinoma cell proliferation during acute ischemia-hypoxia. Oncotarget 2016; 7:37215-37225. [PMID: 27177086 PMCID: PMC5095070 DOI: 10.18632/oncotarget.9295] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 04/26/2016] [Indexed: 01/02/2023] Open
Abstract
Growth arrest DNA damage-inducible gene 45β (GADD45β), which influences cell growth, apoptosis and cellular response to DNA damage, is downregulated in hepatocellular carcinoma (HCC). S-adenosylmethionine (SAMe) serves as an essential methyl donor in multiple metabolic pathways and is a polyamine and glutathione (GSH) precursor. In this study, we assessed the roles of GADD45β and SAMe in cell survival during acute ischemia-hypoxia (I/H). SAMe treatment induced growth of HL-7702 normal hepatic cells, but decreased the viability of HepG2 (p53 wild-type) and Hep3B (p53 null) HCC cells. Cells were exposed to I/H with or without SAMe pre-treatment. I/H exposure alone triggered HCC cell proliferation promoted by autophagy. SAMe pre-treatment restored GADD45β expression and activated HCC cell apoptosis and eliminated I/H-induced HCC cell proliferation. p53 loss blunted the response to SAMe and I/H exposure in Hep3B cells; thus, the inhibitory effect of SAMe on cell proliferation may be reduced in p53-null cells as compared to wild-type cells. These results indicate that GADD45β induction by SAMe inhibits HCC cell proliferation during I/H as a result of increased apoptosis, and that SAMe also protects normal hepatocytes from apoptotic cell death and promotes normal cell regeneration. SAMe should be considered a potential therapeutic agent for the management of HCC.
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Affiliation(s)
- Ding Ma
- Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Baiyong Shen
- Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Varun Seewoo
- Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Tong
- Department of Surgery, Huadong Hospital, Shanghai, China
| | - Weiping Yang
- Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xi Cheng
- Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhijian Jin
- Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chenghong Peng
- Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weihua Qiu
- Department of Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Stiuso P, Bagarolo ML, Ilisso CP, Vanacore D, Martino E, Caraglia M, Porcelli M, Cacciapuoti G. Protective Effect of Tyrosol and S-Adenosylmethionine against Ethanol-Induced Oxidative Stress of Hepg2 Cells Involves Sirtuin 1, P53 and Erk1/2 Signaling. Int J Mol Sci 2016; 17:ijms17050622. [PMID: 27128904 PMCID: PMC4881448 DOI: 10.3390/ijms17050622] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/11/2016] [Accepted: 04/12/2016] [Indexed: 01/18/2023] Open
Abstract
Oxidative stress plays a major role in ethanol-induced liver damage, and agents with antioxidant properties are promising as therapeutic opportunities in alcoholic liver disease. In the present work, we investigated the effect of S-adenosylmethionine (AdoMet), Tyrosol (Tyr), and their combination on HepG2 cells exposed to ethanol exploring the potential molecular mechanisms. We exposed HepG2 cells to 1 M ethanol for 4 and 48 h; thereafter, we recorded a decreased cell viability, increase of intracellular reactive oxygen species (ROS) and lipid accumulation, and the release into culture medium of markers of liver disease such as triacylglycerol, cholesterol, transaminases, albumin, ferritin, and homocysteine. On the other hand, AdoMet and Tyrosol were able to attenuate or antagonize these adverse changes induced by acute exposure to ethanol. The protective effects were paralleled by increased Sirtuin 1 protein expression and nuclear translocation and increased ERK1/2 phosphorylation that were both responsible for the protection of cells from apoptosis. Moreover, AdoMet increased p53 and p21 expression, while Tyrosol reduced p21 expression and enhanced the expression of uncleaved caspase 3 and 9, suggesting that its protective effect may be related to the inhibition of the apoptotic machinery. Altogether, our data show that AdoMet and Tyrosol exert beneficial effects in ethanol-induced oxidative stress in HepG2 cells and provide a rationale for their potential use in combination in the prevention of ethanol-induced liver damage.
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Affiliation(s)
- Paola Stiuso
- Department of Biochemistry, Biophysics, and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Maria Libera Bagarolo
- Department of Biochemistry, Biophysics, and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Concetta Paola Ilisso
- Department of Biochemistry, Biophysics, and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Daniela Vanacore
- Department of Biochemistry, Biophysics, and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Elisa Martino
- Department of Biochemistry, Biophysics, and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Michele Caraglia
- Department of Biochemistry, Biophysics, and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Marina Porcelli
- Department of Biochemistry, Biophysics, and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Giovanna Cacciapuoti
- Department of Biochemistry, Biophysics, and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
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Lozano-Sepulveda SA, Bautista-Osorio E, Merino-Mascorro JA, Varela-Rey M, Muñoz-Espinosa LE, Cordero-Perez P, Martinez-Chantar ML, Rivas-Estilla AM. S-adenosyl-L-methionine modifies antioxidant-enzymes, glutathione-biosynthesis and methionine adenosyltransferases-1/2 in hepatitis C virus-expressing cells. World J Gastroenterol 2016; 22:3746-3757. [PMID: 27076759 PMCID: PMC4814737 DOI: 10.3748/wjg.v22.i14.3746] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 02/14/2016] [Accepted: 03/02/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To elucidate the mechanism(s) by which S-adenosyl-L-methionine (SAM) decreases hepatitis C virus (HCV) expression.
METHODS: We examined the effects of SAM on viral expression using an HCV subgenomic replicon cell culture system. Huh7 HCV-replicon cells were treated with 1 mmol/L SAM for different times (24-72 h), then total RNA and proteins were isolated. cDNA was synthesized and real time-PCR was achieved to quantify HCV-RNA, superoxide dismutase 1 and 2 (SOD-1, SOD-2) catalase, thioredoxin 1, methionine adenosyltransferase 1A and 2A (MAT1A, MAT2A) expression, and GAPDH and RPS18 as endogenous genes. Expression of cellular and viral protein was evaluated by western-blot analysis using antibodies vs HCV-NS5A, SOD-1, SOD-2, catalase, thioredoxin-1, MAT1A, MAT2A, GAPDH and actin. Total glutathione levels were measured at different times by Ellman’s recycling method (0-24 h). Reactive oxidative species (ROS) levels were quantified by the dichlorofluorescein assay (0-48 h); Pyrrolidin dithiocarbamate (PDTC) was tested as an antioxidant control and H2O2 as a positive oxidant agent.
RESULTS: SAM exposition decreased HCV-RNA levels 50%-70% compared to non-treated controls (24-72 h). SAM induced a synergic antiviral effect with standard IFN treatment but it was independent of IFN signaling. In addition, 1 mmol/L SAM exposition did not modify viral RNA stability, but it needs cellular translation machinery in order to decrease HCV expression. Total glutathione levels increased upon SAM treatment in HCV-replicon cells. Transcriptional antioxidant enzyme expression (SOD-1, SOD-2 and thioredoxin-1) was increased at different times but interestingly, there was no significant change in ROS levels upon SAM treatment, contrary to what was detected with PDTC treatment, where an average 40% reduction was observed in exposed cells. There was a turnover from MAT1A/MAT2A, since MAT1A expression was increased (2.5 fold-times at 48 h) and MAT2A was diminished (from 24 h) upon SAM treatment at both the transcriptional and translational level.
CONCLUSION: A likely mechanism(s) by which SAM diminish HCV expression could involve modulating antioxidant enzymes, restoring biosynthesis of glutathione and switching MAT1/MAT2 turnover in HCV expressing cells.
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Guo F, Guo L, Li Y, Zhou Q, Li Z. MALAT1 is an oncogenic long non-coding RNA associated with tumor invasion in non-small cell lung cancer regulated by DNA methylation. Int J Clin Exp Pathol 2015; 8:15903-15910. [PMID: 26884862 PMCID: PMC4730075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 11/26/2015] [Indexed: 06/05/2023]
Abstract
MALAT1 is an important long noncoding RNA in tumor progression. Here we showed that the expression of MALAT1 was upregulated in non-small cell lung cancer cells (NSCLCs) or tissues as compared with the normal lung cell or tissues. Thus, the knockdown of MALAT1 led to decreased cell migration and invasion. Next we also found that CXCL5 as a downstream gene of MALAT1 regulated cell migration and invasion. However the regulation of MALAT1 expression was rarely known. Here we found that the treatment with SAM suppressed of MALAT1 expression. Finally, we showed that the methylated forms of MALAT1 promoter in lung cancer cells or tissues decreased compared with normal lung cells or tissues. These demonstrated that the expression of MALAT1 was dependent on the methylation. Overall, our findings illuminate the oncogenic function of MALAT1 which is regulated by DNA methylation that might provide potential clinical application in NSCLC.
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Affiliation(s)
- Fengjie Guo
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General HospitalTianjin, P. R. China
| | - Lili Guo
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General HospitalTianjin, P. R. China
| | - Yongwen Li
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General HospitalTianjin, P. R. China
| | - Qinghua Zhou
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General HospitalTianjin, P. R. China
- Department of Lung Cancer Surgery, Tianjin Medical University General HospitalTianjin, P. R. China
| | - Zhigang Li
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General HospitalTianjin, P. R. China
- Department of Lung Cancer Surgery, Tianjin Medical University General HospitalTianjin, P. R. China
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Ilisso CP, Castellano M, Zappavigna S, Lombardi A, Vitale G, Dicitore A, Cacciapuoti G, Caraglia M, Porcelli M. The methyl donor S-adenosylmethionine potentiates doxorubicin effects on apoptosis of hormone-dependent breast cancer cell lines. Endocrine 2015; 50:212-22. [PMID: 25577236 DOI: 10.1007/s12020-014-0484-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 11/14/2014] [Indexed: 12/19/2022]
Abstract
In this work, we have investigated the antiproliferative effect of AdoMet and Doxorubicin (Doxo), alone or in combination, on different breast cancer cell lines. For the evaluation of synergism, we have calculated the combination index (CI) by the Calcusyn software and we have evaluated the effects of the combination on apoptosis occurrence at FACS analysis in hormone-dependent CG5 cell line. We have found that AdoMet and Doxo given in combination were strongly synergistic in the hormone-dependent CG5 and MCF-7 human breast cancer cell line, as a CI50 < 0.5 was found after 72 h of treatment while the effect was only additive in hormone-independent MDA-MB 231 cells. On the basis of our results, we have selected a combination of AdoMet and Doxo, that was highly synergistic and we have found that the AdoMet in combination with Doxo increased apoptosis induced by Doxo alone, suggesting that the synergism on growth inhibition was largely due to apoptosis. Notably, the AdoMet/Doxo combination induced a significant activation of caspases 3, and 8, while no effect was found on caspase 9 cleavage. In contrast, no significant changes of the expression of cleaved caspase 8 and 9 were found in cells treated with AdoMet and Doxo alone. Moreover, the combination induced a significant increase of Fas and FasL expression. These results highlight the importance of the synergistic effect of AdoMet with Doxo in the regulation of hormone-dependent breast cancer cell proliferation and emphasize the anti-tumor activity of these molecules.
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Affiliation(s)
- Concetta Paola Ilisso
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Via L. De Crecchio 7, 80138, Naples, Italy
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Pogotova GA. [AN INFLUENCE OF ADEMETIONINE ON AN ENERGY METABOLISM, PROOXIDANT-ANTIOXIDANT SYSTEM IN LIVER, MYOCARDIUM, AND BRAIN OF RATS IN THE PRESENCE OF THE DICHLOROETHANE HEPATITIS]. Lik Sprava 2015:120-125. [PMID: 27089729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The negative changes in an energy metabolism and prooxidant-antioxidant system not only in liver, but also in myocardium and brain of rats are observed in the presence of the toxic dichloroethane hepatitis. An activation of oxidative stress with subsequent damage of cells of target organs due to the free radical mechanism and a disruption of an energy metabolism take place in the case of such pathology. The hepatoprotective medicine Ademetionine restores an energy metabolism, antioxidant system, and the system of oxidative modification of proteins functioning not only in hepatocytes, but in myocardium and brain of rats as well.
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Zhang YB, Da MX, Yao JB, Duan YX. [S-Adenosylmethionine Inhibits Expression of Vascular Endothelial Growth Factor-C Protein and Cellular Proliferation in Gastric Cancer]. Sichuan Da Xue Xue Bao Yi Xue Ban 2015; 46:384-388. [PMID: 26121858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To explore inhibitory effects of S-adenosylmethionine on vascular endothelial growth factor-C (VEGF-C) protein and cellular proliferation in gastric cancer by regulating methylation status of VEGF-C promoter. METHODS MTT analyses and nude mice model were employed to examine the effects of S- adenosylmethionine on inhibiting gastric cancer growth in vitro and in vivo. The protein expression of VEGF-C in gastric cancer cells was assessed by Western blot. The methylation status of VEGF-C promoter was assessed by bisulfite genomic DNA sequencing analysis. RESULTS VEGF-C promoter was hypomethylated in MGC803 and SGC7901. The treatment of S-adenosylmethionine resulted in a heavy hypermethylation of VEGF-C promoter, which consequently down regulated protein level of VEGF-C. S-adenosylmethionine effectively inhibited the growth of gastric cancer cells in vitro and in vivo (P<0. 05). CONCLUSION S-adenosylmethionine can effectively reverse DNA hypomethylation on VEGF-C promoter which down-regulates VEGF-C protein expression and inhibit gastric cancer growth.
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Abstract
PURPOSE Methionine (Met) could be a useful imaging biomarker for the diagnosis of hepatocellular carcinoma (HCC), as demonstrated by PET imaging with L-[methyl-(11)C]-Met. In HCC cells, protein synthesis mainly contributes to radiopharmaceutical uptake. In contrast, lipid synthesis via the phosphatidylethanolamine (PE) methylation pathway is the major metabolic route of L-[methyl-(11)C]-Met in normal hepatocytes, which contributes to the background contrast observed in PET images. However, the mechanisms of amino acid transport and the roles of the two key enzymes, methionine adenosyltransferase (MAT) and phosphatidylethanolamine N-methyltransferase (PEMT), are not yet completely understood. The aim of this study was to investigate the roles of the amino acid transporters and these two key enzymes in the uptake of L-[methyl-(11)C]-Met in HCC cells. PROCEDURES A well-differentiated woodchuck HCC cell line, WCH17, was used for the study. The amino acid transporter of WCH17 cells was assayed to investigate the Met transport process in HCC. WCH17 cells were treated with 5 mM S-adenosylmethionine (SAM) for 8, 16, 24, and 48 h to downregulate MAT2A gene expression. Control or SAM-treated WCH17 cells were pulsed with L-[methyl-(3)H]-Met for 5 min and chased with cold media to mimic the rapid blood clearance of radiolabeled Met (pulse-chase experiment). In parallel, WCH17 cells were transfected with a mouse liver PEMT2 expression vector, and the pulse-chase experiment was performed to investigate the uptake of the radiolabeled Met in HCC cells. The water-soluble, protein, and lipid phases from the total uptake were subsequently extracted and measured, respectively. RESULTS Met was transported into HCC cells via a facilitative transport process, which was characterized as system L and ASC-like, Na(+) dependent, and low affinity with partial energy dependence. The total uptake of L-[methyl-(3)H]-Met was decreased in HCC cells with SAM treatment. This reduction pattern followed that of MAT2A expression (the duration of SAM treatment). The incorporated (3)H was mostly distributed in the protein phase and, to a lesser degree, in the lipid phase via PE methylation pathway in HCC cells with SAM treatment. The downregulated MAT2A expression led to the decreased uptake in protein and water-soluble phases. In addition, an increased uptake in the lipid phase was observed in WCH17 cells transfected with PEMT2 expression vector. CONCLUSIONS The amino acid transport processes may be responsible for the rapid accumulation of radiolabeled Met after the intravenous injection of tracers for the imaging of HCC. Upregulated MAT2A expression and impaired PEMT2 activities in HCC are associated with the specific metabolic pattern of L-[methyl-(11)C]-Met detected by PET.
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Affiliation(s)
- Yu Kuang
- Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH, 44106, USA
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Zhang D, Sun X, Liu J, Xie X, Cui W, Zhu Y. Homocysteine accelerates senescence of endothelial cells via DNA hypomethylation of human telomerase reverse transcriptase. Arterioscler Thromb Vasc Biol 2015; 35:71-8. [PMID: 25359865 DOI: 10.1161/atvbaha.114.303899] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Homocysteine can accelerate the senescence of endothelial progenitor cells or endothelial cells (ECs) via telomerase inactivation and length shortening. However, the underlying mechanism is unclear. Here, we investigated whether homocysteine promotes endothelial senescence by reducing the expression and activity of human telomerase reverse transcriptase (hTERT) by DNA methylation to reduce ECs telomerase activity. APPROACH AND RESULTS When compared with primary human umbilical vein endothelial cells grown under standard conditions, ECs with chronic homocysteine treatment showed accelerated upregulation of p16, p21, and p53, markers of cellular senescence, during 6 to 10 passages. Interestingly, homocysteine-stimulated but not angiotensin II-stimulated ECs senescence could be reversed by hypermethylation induced by folic acid or s-adenosylmethionine supplementation. Meanwhile, homocysteine promoted the shortening of telomere length specifically related to restoration of hTERT transcriptional expression and CCCTC-binding factor binding sites with hTERT promoter hypomethylation, as detected by quantitative real-time polymerase chain reaction, Western blot, methylation-specific polymerase chain reaction, and bisulfite sequencing assay. Electrophoretic mobility shift assay and chromatin immunoprecipitation results showed that homocysteine-reduced telomere activity and homocysteine-induced EC senescence might contribute to hTERT promoter demethylation by increasing CCCTC-binding factor repression and interfering in the SP1 binding to the demethylated hTERT promoter, which might relate with reduced of DNA methyltransferase 1. Furthermore, the CCCTC-binding factor-dependent mechanism of homocysteine-reduced hTERT expression via DNA demethylation was confirmed in aortic endothelia of mice with hyperhomocysteine levels. CONCLUSIONS CCCTC-binding factor and SP1 cross talk may contribute to homocysteine-reduced hTERT DNA methylation and expression in endothelial senescence.
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Affiliation(s)
- Donghong Zhang
- From the Department of Clinical Laboratory, Peking Union Medical College and Peking Union Medical College Hospital, Beijing, China (D.Z., W.C.); Department of Physiology and Pathophysiology, Key Laboratory of Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China (W.C.); Cardiovascular Research Center, Shantou University Medical College, Shantou, Guangdong, China (D.Z., J.L., X.X.); and Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China (Y.Z.)
| | - Xiaoli Sun
- From the Department of Clinical Laboratory, Peking Union Medical College and Peking Union Medical College Hospital, Beijing, China (D.Z., W.C.); Department of Physiology and Pathophysiology, Key Laboratory of Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China (W.C.); Cardiovascular Research Center, Shantou University Medical College, Shantou, Guangdong, China (D.Z., J.L., X.X.); and Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China (Y.Z.)
| | - Jianlan Liu
- From the Department of Clinical Laboratory, Peking Union Medical College and Peking Union Medical College Hospital, Beijing, China (D.Z., W.C.); Department of Physiology and Pathophysiology, Key Laboratory of Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China (W.C.); Cardiovascular Research Center, Shantou University Medical College, Shantou, Guangdong, China (D.Z., J.L., X.X.); and Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China (Y.Z.)
| | - Xina Xie
- From the Department of Clinical Laboratory, Peking Union Medical College and Peking Union Medical College Hospital, Beijing, China (D.Z., W.C.); Department of Physiology and Pathophysiology, Key Laboratory of Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China (W.C.); Cardiovascular Research Center, Shantou University Medical College, Shantou, Guangdong, China (D.Z., J.L., X.X.); and Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China (Y.Z.)
| | - Wei Cui
- From the Department of Clinical Laboratory, Peking Union Medical College and Peking Union Medical College Hospital, Beijing, China (D.Z., W.C.); Department of Physiology and Pathophysiology, Key Laboratory of Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China (W.C.); Cardiovascular Research Center, Shantou University Medical College, Shantou, Guangdong, China (D.Z., J.L., X.X.); and Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China (Y.Z.).
| | - Yi Zhu
- From the Department of Clinical Laboratory, Peking Union Medical College and Peking Union Medical College Hospital, Beijing, China (D.Z., W.C.); Department of Physiology and Pathophysiology, Key Laboratory of Cardiovascular Science of Ministry of Education, Peking University Health Science Center, Beijing, China (W.C.); Cardiovascular Research Center, Shantou University Medical College, Shantou, Guangdong, China (D.Z., J.L., X.X.); and Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China (Y.Z.).
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Schwenk D, Nett M, Dahse HM, Horn U, Blanchette RA, Hoffmeister D. Injury-induced biosynthesis of methyl-branched polyene pigments in a white-rotting basidiomycete. J Nat Prod 2014; 77:2658-2663. [PMID: 25420175 DOI: 10.1021/np500552a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A stereaceous basidiomycete was investigated with regard to its capacity to produce yellow pigments after physical injury of the mycelium. Two pigments were isolated from mycelial extracts, and their structures were elucidated by ESIMS and one- and two-dimensional NMR methods. The structures were identified as the previously undescribed polyenes (3Z,5E,7E,9E,11E,13Z,15E,17E)-18-methyl-19-oxoicosa-3,5,7,9,11,13,15,17-octaenoic acid (1) and (3E,5Z,7E,9E,11E,13E,15Z,17E,19E)-20-methyl-21-oxodocosa-3,5,7,9,11,13,15,17,19-nonaenoic acid (2). Stable-isotope feeding with [1-(13)C]acetate and l-[methyl-(13)C]methionine demonstrated a polyketide backbone and that the introduction of the sole methyl branch is most likely S-adenosyl-l-methionine-dependent. Dose-dependent inhibition of Drosophila melanogaster larval development was observed with both polyenes in concentrations between 12.5 and 100 μM. GI50 values for 1 and 2 against HUVEC (K-562 cells) were 71.6 and 17.4 μM (15.4 and 1.1 μM), respectively, whereas CC50 values for HeLa cells were virtually identical (44.1 and 45.1 μM).
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Affiliation(s)
- Daniel Schwenk
- Department of Pharmaceutical Microbiology at the Hans-Knöll-Institute, Friedrich-Schiller-Universität , Beutenbergstrasse 11a, 07745 Jena, Germany
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Ignatiyev SV, Ivashkina EP, Vorojysova SI, Tarasova LN, Chernova TA, Timofeyeva MA. [The dynamics of biochemical blood indicators in patients with hemophilia and posttransfusion hepatitis receiving hepatotropic therapy]. Klin Lab Diagn 2014:4-6. [PMID: 25335391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The sample of 128 patients with hemophilia aged from 1 to 71 years (Me 32) was examined. The study established that 109 patients (85.2%) had hemophilia A and 19 patients (14.8%) had hemophilia B. In 77 adult patients (60%) markers of viruses of hepatitis C and B were detected and the signs of disorders of liver functions were established in 64% out of them. These signs included reliable increasing of levels of AST and ALT, total and conjugated bilirubin, urea and creatinine and absence of any clinical manifestations. The detected alterations served as a background for implementation of hepatotropic therapy with pharmaceutical Heptral. The ademetionin is the reactant of preparation. After two weeks of intravenous application of Heptal the tendency to normalization of content of bilirubin was established. The significant decrease of activity of aminotransferases was detected, nevertheless their levels still overridden physiological standard. This situation required to prescribe pharmaceutical and to continue treatment in out-patient conditions. The continuous repair of functional activity of hepatic cells requires further search of more effective schemes of therapy.
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Abstract
S-adenosylmethionine (SAM) accumulated in cultured yeast cells and affected growth in two ways. High levels of intracellular SAM in yeast inhibited early growth, but increased growth in medium without sources of nitrogen and sulfur. Accumulated SAM in the yeast cells was recycled as a nutritional source depending on the sulfur and nitrogen contents of the medium.
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Hickey SF, Hammond MC. Structure-guided design of fluorescent S-adenosylmethionine analogs for a high-throughput screen to target SAM-I riboswitch RNAs. Chem Biol 2014; 21:345-56. [PMID: 24560607 PMCID: PMC4074398 DOI: 10.1016/j.chembiol.2014.01.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 12/12/2013] [Accepted: 01/03/2014] [Indexed: 10/25/2022]
Abstract
Many classes of S-adenosylmethionine (SAM)-binding RNAs and proteins are of interest as potential drug targets in diverse therapeutic areas, from infectious diseases to cancer. In the former case, the SAM-I riboswitch is an attractive target because this structured RNA element is found only in bacterial mRNAs and regulates multiple genes in several human pathogens. Here, we describe the synthesis of stable and fluorescent analogs of SAM in which the fluorophore is introduced through a functionalizable linker to the ribose. A Cy5-labeled SAM analog was shown to bind several SAM-I riboswitches via in-line probing and fluorescence polarization assays, including one from Staphylococcus aureus that controls the expression of SAM synthetase in this organism. A fluorescent ligand displacement assay was developed and validated for high-throughput screening of compounds to target the SAM-I riboswitch class.
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Affiliation(s)
- Scott F Hickey
- Department of Chemistry, University of California, Berkeley, CA 94720, USA; Synthetic Biology Institute, University of California, Berkeley, Berkely, CA 94720, USA
| | - Ming C Hammond
- Department of Chemistry, University of California, Berkeley, CA 94720, USA; Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA; Synthetic Biology Institute, University of California, Berkeley, Berkely, CA 94720, USA.
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Amin KA, Hashem KS, Al-muzafar HM, Taha EM. Oxidative hepatotoxicity effects of monocrotaline and its amelioration by lipoic acid, S-adenosyl methionine and vitamin E. J Complement Integr Med 2014; 11:35-41. [PMID: 24413220 DOI: 10.1515/jcim-2013-0041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2013] [Accepted: 12/07/2013] [Indexed: 01/06/2023]
Abstract
Liver is the major site for several xenobiotics metabolism, and formation of toxic metabolites that may be hepatotoxic, therefore the burden of metabolism and exposure to dangerous chemicals make liver vulnerable to a variety of disorders. Our work aimed to investigate the effects of some antioxidants such as lipoic acid (LA), S-adenosyl methionine (SAM) and vitamin E in a trail to investigate the possibility of using these substances to relieve and protect liver from exposure to monocrotaline (MCT). Twenty-five mature adult rats were classified into five groups (five rats in each group), control group, MCT-induced hepatic damage, LA+MCT, SAM+MCT and vitamin E+MCT group. Homogenates of liver samples were used for measuring the oxidative biomarkers and hepatic antioxidant status. The results showed that administration of vitamin E, SAM and LA caused a significant increase in liver glutathione contents, glutathione reductase, glutathione peroxidase and glutathione-S-transferase activities and a significant decrease in hepatic catalase and superoxide dismutase. We could conclude that administration of natural LA, SAM and vitamin E before and after MCT injection modulate the hepatic oxidative stresses induced by MCT in various extents.
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Cordero P, Milagro FI, Campion J, Martinez JA. Maternal methyl donors supplementation during lactation prevents the hyperhomocysteinemia induced by a high-fat-sucrose intake by dams. Int J Mol Sci 2013; 14:24422-37. [PMID: 24351826 PMCID: PMC3876120 DOI: 10.3390/ijms141224422] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 12/03/2013] [Accepted: 12/10/2013] [Indexed: 01/09/2023] Open
Abstract
Maternal perinatal nutrition may program offspring metabolic features. Epigenetic regulation is one of the candidate mechanisms that may be affected by maternal dietary methyl donors intake as potential controllers of plasma homocysteine levels. Thirty-two Wistar pregnant rats were randomly assigned into four dietary groups during lactation: control, control supplemented with methyl donors, high-fat-sucrose and high-fat-sucrose supplemented with methyl donors. Physiological outcomes in the offspring were measured, including hepatic mRNA expression and global DNA methylation after weaning. The newborns whose mothers were fed the obesogenic diet were heavier longer and with a higher adiposity and intrahepatic fat content. Interestingly, increased levels of plasma homocysteine induced by the maternal high-fat-sucrose dietary intake were prevented in both sexes by maternal methyl donors supplementation. Total hepatic DNA methylation decreased in females due to maternal methyl donors administration, while Dnmt3a hepatic mRNA levels decreased accompanying the high-fat-sucrose consumption. Furthermore, a negative association between Dnmt3a liver mRNA levels and plasma homocysteine concentrations was found. Maternal high-fat-sucrose diet during lactation could program offspring obesity features, while methyl donors supplementation prevented the onset of high hyperhomocysteinemia. Maternal dietary intake also affected hepatic DNA methylation metabolism, which could be linked with the regulation of the methionine-homocysteine cycle.
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Affiliation(s)
- Paul Cordero
- Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain; E-Mails: (P.C.); (F.I.M.); (J.C.)
| | - Fermin I. Milagro
- Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain; E-Mails: (P.C.); (F.I.M.); (J.C.)
- CIBERobn, Physiopathology of Obesity and Nutrition, Centre of Biomedical Research Network, 29029 Madrid, Spain
| | - Javier Campion
- Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain; E-Mails: (P.C.); (F.I.M.); (J.C.)
- CIBERobn, Physiopathology of Obesity and Nutrition, Centre of Biomedical Research Network, 29029 Madrid, Spain
| | - J. Alfredo Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain; E-Mails: (P.C.); (F.I.M.); (J.C.)
- CIBERobn, Physiopathology of Obesity and Nutrition, Centre of Biomedical Research Network, 29029 Madrid, Spain
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +34-948-425-600 (ext. 806424); Fax: +34-948-425-649
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Kim SY, Hong SW, Kim MO, Kim HS, Jang JE, Leem J, Park IS, Lee KU, Koh EH. S-adenosyl methionine prevents endothelial dysfunction by inducing heme oxygenase-1 in vascular endothelial cells. Mol Cells 2013; 36:376-84. [PMID: 24046187 PMCID: PMC3887983 DOI: 10.1007/s10059-013-0210-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 08/09/2013] [Accepted: 08/12/2013] [Indexed: 01/12/2023] Open
Abstract
S-adenosyl methionine (SAM) is a key intermediate in the metabolism of sulfur amino acids and is a major methyl donor in the cell. Although the low plasma level of SAM has been associated with atherosclerosis, the effect of SAM administration on atherosclerosis is not known. Endothelial dysfunction is an early prerequisite for atherosclerosis. This study was undertaken to investigate the possible preventive effect of SAM on endothelial dysfunction and the molecular mechanism of its action. SAM treatment prevented endothelial dysfunction in high fat diet (HFD)-fed rats. In cultured human aortic endothelial cells, linoleic acid (LA) increased and SAM decreased cell apoptosis and endoplasmic reticulum stress. Both LA and SAM increased heme oxygenase-1 (HO-1) expression in an NF-E2-related factor 2-dependent manner. However, knockdown of HO-1 reversed only the SAM-induced preventive effect of cell apoptosis. The LA-induced HO-1 expression was dependent on PPARα, whereas SAM induced HO-1 in a PPAR-independent manner. These data demonstrate that SAM treatment prevents endothelial dysfunction in HFDfed animals by inducing HO-1 in vascular endothelial cells. In cultured endothelial cells, SAM-induced HO-1 was responsible for the observed prevention of cell apoptosis. We propose that SAM treatment may represent a new therapeutic strategy for atherosclerosis.
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Affiliation(s)
- Sun Young Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 138-736, Korea
| | - Seok Woo Hong
- Department of Anatomy, College of Medicine, Inha University, Incheon 401-103, Korea
| | - Mi-Ok Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 138-736, Korea
| | - Hyun-Sik Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 138-736, Korea
| | - Jung Eun Jang
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul 138-736, Korea
| | - Jaechan Leem
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul 138-736, Korea
| | - In-Sun Park
- Department of Anatomy, College of Medicine, Inha University, Incheon 401-103, Korea
| | - Ki-Up Lee
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul 138-736, Korea
| | - Eun Hee Koh
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul 138-736, Korea
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Abstract
Several studies suggest that individual variability is a critical component underlying drug addiction as not all members of a population who use addictive substance become addicted. There is evidence that the overall epigenetic status of a cell (epigenome) can be modulated by a variety of environmental factors, such as nutrients and chemicals. Based on these data, our aim was to investigate whether environmental factors like S-adenosylmethionine (SAM) via affecting epigenome could alter cocaine-induced gene expression and locomotor sensitization in mice. Our results demonstrate that repeated SAM (10 mm/kg) pretreatment significantly potentiated cocaine-induced locomotor sensitization. Using mouse nucleus accumbens (NAc) tissue, whole-genome gene expression profiling revealed that repeated SAM treatment affected a limited number of genes, but significantly modified cocaine-induced gene expression by blunting non-specifically the cocaine response. At the gene level, we discovered that SAM modulated cocaine-induced DNA methylation by inhibiting both promoter-associated CpG-island hyper- and hypomethylation in the NAc but not in the reference tissue cerebellum. Finally, our in vitro and in vivo data show that the modulating effect of SAM is in part due to decreased methyltransferase activity via down-regulation of Dnmt3a mRNA. Taken together, our results suggest that environmental factors that affect the NAc-cell epigenome may alter the development of psychostimulant-induced addiction and this may explain, at least partly, why some individuals are more vulnerable to drug addiction.
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Affiliation(s)
- Kaili Anier
- Department of Pharmacology, University of Tartu, Tartu, Estonia
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Abstract
PURPOSE OF REVIEW Humans eating diets low in choline develop fatty liver and liver damage. Rodents fed choline-methionine-deficient diets not only develop fatty liver, but also progress to develop fibrosis and hepatocarcinoma. This review focuses on the role of choline in liver function, with special emphasis on the epigenetic mechanisms of action. RECENT FINDINGS Dietary intake of methyl donors like choline influences the methylation of DNA and histones, thereby altering the epigenetic regulation of gene expression. The liver is the major organ within which methylation reactions occur, and many of the hepatic genes involved in pathways for the development of fatty liver, hepatic fibrosis, and hepatocarcinomas are epigenetically regulated. SUMMARY Dietary intake of choline varies over a three-fold range and many humans have genetic polymorphisms that increase their demand for choline. Choline is an important methyl donor needed for the generation of S-adenosylmethionine. Dietary choline intake is an important modifier of epigenetic marks on DNA and histones, and thereby modulates the gene expression in many of the pathways involved in liver function and dysfunction.
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Affiliation(s)
- Mihai G Mehedint
- Nutrition Research Institute at Kannapolis, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Sukhanov DS, Vinogradova TI, Zabolotnykh NV, Vasil'eva SN, Vitovskaia ML. [The hepatoprotective activity of remaxol and S-adenosyl-L-methionine for liver damage caused by reserve-series antituberculosis drugs]. Arkh Patol 2013; 75:25-29. [PMID: 24006761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Experiments on male albino outbred rats investigated the hepatoprotective activity of remaxol and ademethionine in liver damage caused by reserve-series antituberculosis drugs. The test drugs had a mixed action, by reducing the degree of cytolytic and cholestatic syndromes. Remaxol and ademethionine assist in diminishing the degree of liver structural and functional impairments occurring with reserve-series antituberculosis drugs, by restoring the girder structure of lobes and decreasing the magnitude of dystrophic changes to stimulate reparative processes. Histological examination of liver tissue sections from rats receiving ademethionine revealed the enhanced activity of alterative processes in the liver.
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48
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Grashin RA, Poliakova AV, Telichko IN. [State of thiol exchange in patients with psoriasis and its possible correction]. Eksp Klin Farmakol 2013; 76:39-42. [PMID: 23461015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Experiments on erythrocytes of patients were used to study the influence of remaxol and ademetionin on the exchange of thiols. The values of thioldisulfide exchange indicators were determined in the beginning of the period of observation and at the end of every week within one month. Patients who received hepato-protectors in combination with higher-level thiols showed positive dynamics in disease treatment as compared to patients receiving standard therapy. The concentration of restored glutathione and proteins of hydrosulfide groups and the activity of glutathione peroxidase are informative criteria for estimating the course of disease current and the efficiency of therapy of widespread forms of psoriasis.
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Karelov AE, Pyshnaia IV, Mitrokhina MV, Popel' IV, Gorokhov LV, Kremzel' EG, Naperov EV, Nikolaev AA. [The efficacy of hepatotropic agent Remaxol in oncological patients with postoperative liver dysfunction]. Eksp Klin Farmakol 2013; 76:19-23. [PMID: 24006611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The study of the efficiency and safety of the hepatotropic drug Remaxol in oncological patients with minimal, subclinical manifestations of liver dysfunction in the postoperative period was performed. It is shown that using of Remaxolcontributes to leveling the biochemical liver dysfunction: decrease of the concentration of total bilirubin, a decrease serum activity of lactate dehydrogenase, alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase. The unwanted effects of Remaxol were not identified.
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50
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Kharbanda KK, Bardag-Gorce F, Barve S, Molina PE, Osna NA. Impact of altered methylation in cytokine signaling and proteasome function in alcohol and viral-mediated diseases. Alcohol Clin Exp Res 2013; 37:1-7. [PMID: 22577887 PMCID: PMC3421055 DOI: 10.1111/j.1530-0277.2012.01840.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Accepted: 03/18/2012] [Indexed: 02/05/2023]
Abstract
Data from several laboratories have shown that ethanol (EtOH) feeding impairs many essential methylation reactions that contribute to alcoholic liver disease (ALD). EtOH is also a comorbid factor in the severity of hepatitis C virus-induced liver injury. The presence of viral proteins further exacerbates the methylation defects to disrupt multiple pathways that promote the pathogenesis of liver disease. This review is a compilation of presentations that linked the methylation reaction defects with proteasome inhibition, decreased antigen presentation, and impaired interferon (IFN) signaling in the hepatocytes and dysregulated TNFα expression in macrophages. Two therapeutic modalities, betaine and S-adenosylmethionine, can correct methylation defects to attenuate many EtOH-induced liver changes, as well as improve IFN signaling pathways, thereby overcoming viral treatment resistance.
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Affiliation(s)
- Kusum K. Kharbanda
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, Nebraska, 68105, USA; Phone: 1-402-995-3752; Fax: +1-402-449-0604
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska, 68198, USA; Phone: 1-402-995-3735; Fax: +1-402-449-0604
- Corresponding author: Kusum K. Kharbanda, Ph.D., Research Service, Veterans Affairs, Nebraska-Western Iowa Health Care System, Omaha, Nebraska, 68105, USA Tel.:+1-402-995-3752; Fax: 1+402-449-0604;
| | - Fawzia Bardag-Gorce
- Department of Pathology, Los Angeles Biomedical Research Institute, Harbor UCLA Medical Center, 1124 W Carson St., Torrance, CA, 90502, USA; Phone: +1-310-222-1846; Fax: +1-310-222-3614
| | - Shirish Barve
- Department of Medicine and Alcohol Research Center, University of Louisville, Louisville, KY 40202, USA, Phone: +1-502-852-5245; Fax: +1-502-852-8927
| | - Patricia E. Molina
- Department of Physiology and Alcohol and Drug Abuse Center of Excellence, Department of Physiology, Louisiana State University Health Sciences Center, 1901 Perdido Street, Medical Education Building, New Orleans, LA 70112; Phone: 504-568-6187; Fax: 504-568-6158
| | - Natalia A. Osna
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, Nebraska, 68105, USA; Phone: 1-402-995-3752; Fax: +1-402-449-0604
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska, 68198, USA; Phone: 1-402-995-3735; Fax: +1-402-449-0604
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