51
|
Huang M, Long L, Wang N, Yuan X, Cao S, Gong A, Wang K. Bifunctional Fluorescent Probe for Sequential Sensing of Thiols and Primary Aliphatic Amines in Distinct Fluorescence Channels. Chem Asian J 2018; 13:560-567. [PMID: 29341435 DOI: 10.1002/asia.201701733] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/15/2018] [Indexed: 11/11/2022]
Abstract
Thiols and primary aliphatic amines (PAA) are ubiquitous and extremely important species in biological systems. They perform significant interplaying roles in complex biological events. A single fluorescent probe differentiating both thiols and PAA can contribute to understanding the intrinsic inter-relationship of thiols and PAA in biological processes. Herein, we rationally constructed the first fluorescent probe that can respond to thiols and PAA in different fluorescence channels. The probe exhibited a high selectivity and sensitivity to thiols and PAA. In addition, it displayed sequential sensing ability when the thiols and PAA coexisted. The application experiments indicated that the probe can be used for sensing thiols and PAA in human blood serum. Moreover, the fluorescence imaging of endogenous thiols and PAA as well as antihypertensive drugs captopril and amlodipine in living cells were successfully conducted.
Collapse
Affiliation(s)
- Meiyu Huang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China
| | - Lingliang Long
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China
| | - Ning Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China
| | - Xiangqi Yuan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China
| | - Siyu Cao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China
| | - Aihua Gong
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China
| | - Kun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China
| |
Collapse
|
52
|
Medina MÁ. Mathematical modeling of cancer metabolism. Crit Rev Oncol Hematol 2018; 124:37-40. [PMID: 29548484 DOI: 10.1016/j.critrevonc.2018.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 12/15/2017] [Accepted: 02/01/2018] [Indexed: 01/14/2023] Open
Abstract
Systemic approaches are needed and useful for the study of the very complex issue of cancer. Modeling has a central position in these systemic approaches. Metabolic reprogramming is nowadays acknowledged as an essential hallmark of cancer. Mathematical modeling could contribute to a better understanding of cancer metabolic reprogramming and to identify new potential ways of therapeutic intervention. Herein, I review several alternative approaches to metabolic modeling and their current and future impact in oncology.
Collapse
Affiliation(s)
- Miguel Ángel Medina
- Universidad de Málaga, Andalucía Tech, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, IBIMA (Biomedical Research Institute of Málaga), E-29071 Málaga, Spain; CIBER de Enfermedades Raras (CIBERER), E-29071, Málaga, Spain.
| |
Collapse
|
53
|
Modulation of oncogenic miRNA biogenesis using functionalized polyamines. Sci Rep 2018; 8:1667. [PMID: 29374231 PMCID: PMC5786041 DOI: 10.1038/s41598-018-20053-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 01/12/2018] [Indexed: 12/29/2022] Open
Abstract
MicroRNAs are key factors in the regulation of gene expression and their deregulation has been directly linked to various pathologies such as cancer. The use of small molecules to tackle the overexpression of oncogenic miRNAs has proved its efficacy and holds the promise for therapeutic applications. Here we describe the screening of a 640-compound library and the identification of polyamine derivatives interfering with in vitro Dicer-mediated processing of the oncogenic miR-372 precursor (pre-miR-372). The most active inhibitor is a spermine-amidine conjugate that binds to the pre-miR-372 with a KD of 0.15 µM, and inhibits its in vitro processing with a IC50 of 1.06 µM. The inhibition of miR-372 biogenesis was confirmed in gastric cancer cells overexpressing miR-372 and a specific inhibition of proliferation through de-repression of the tumor suppressor LATS2 protein, a miR-372 target, was observed. This compound modifies the expression of a small set of miRNAs and its selective biological activity has been confirmed in patient-derived ex vivo cultures of gastric carcinoma. Polyamine derivatives are promising starting materials for future studies about the inhibition of oncogenic miRNAs and, to the best of our knowledge, this is the first report about the application of functionalized polyamines as miRNAs interfering agents.
Collapse
|
54
|
Li M, Wang Y, Ge C, Chang L, Wang C, Tian Z, Wang S, Dai F, Zhao L, Xie S. Synthesis and biological evaluation of novel alkylated polyamine analogues as potential anticancer agents. Eur J Med Chem 2018; 143:1732-1743. [DOI: 10.1016/j.ejmech.2017.10.069] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 01/17/2023]
|
55
|
Quantitative metabolomics for investigating the value of polyamines in the early diagnosis and therapy of colorectal cancer. Oncotarget 2017; 9:4583-4592. [PMID: 29435126 PMCID: PMC5796997 DOI: 10.18632/oncotarget.22885] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 11/15/2017] [Indexed: 11/25/2022] Open
Abstract
As an important biomarker for cancer, polyamine levels in body fluid could be employed for monitoring the colorectal cancer (CRC), however the role of polyamines in the development and therapeutics phases of CRC remains uncertain. In this paper, the relationship between polyamines and CRC development and therapeutics had been investigated by the study of changes in plasma polyamine levels during the precancerous, developmental and treatment phases of CRC. After inducing CRC in Wistar rats by intraperitoneal injection of 1, 2-dimethylhydrazine, the animals were given a traditional Chinese medicine, Aidi injections. Firstly, the polyamine levels in the plasma of CRC, healthy and medicated rats were measured by UHPLC-MS/MS assay. In addition, Lasso regression analysis was used for screening and confirming the key markers, which can be employed for distinguishing the healthy and CRC rats as well as the CRC and medication rats. The results obtained showed that polyamine metabolism had been disrupted by CRC but returned to normal levels following Aidi injections and, in particular, putrescine and agmatine were closely correlated with CRC. Our results demonstrate the potential value of plasma polyamine metabolic profiling during the early diagnosis and medical treatment of CRC. Also, the integrated method of polyamine metabolite target analysis and lasso regression analysis can be applied in metabolomics for seeking the differential metabolites.
Collapse
|
56
|
Shin SM, Song SH, Lee JW, Kwak MK, Kang SO. Methylglyoxal synthase regulates cell elongation via alterations of cellular methylglyoxal and spermidine content in Bacillus subtilis. Int J Biochem Cell Biol 2017; 91:14-28. [PMID: 28807600 DOI: 10.1016/j.biocel.2017.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 07/14/2017] [Accepted: 08/08/2017] [Indexed: 01/03/2023]
Abstract
Methylglyoxal regulates cell division and differentiation through its interaction with polyamines. Loss of their biosynthesizing enzyme causes physiological impairment and cell elongation in eukaryotes. However, the reciprocal effects of methylglyoxal and polyamine production and its regulatory metabolic switches on morphological changes in prokaryotes have not been addressed. Here, Bacillus subtilis methylglyoxal synthase (mgsA) and polyamine biosynthesizing genes encoding arginine decarboxylase (SpeA), agmatinase (SpeB), and spermidine synthase (SpeE), were disrupted or overexpressed. Treatment of 0.2mM methylglyoxal and 1mM spermidine led to the elongation and shortening of B. subtilis wild-type cells to 12.38±3.21μm (P<0.05) and 3.24±0.73μm (P<0.01), respectively, compared to untreated cells (5.72±0.68μm). mgsA-deficient (mgsA-) and -overexpressing (mgsAOE) mutants also demonstrated cell shortening and elongation, similar to speB- and speE-deficient (speB- and speE-) and -overexpressing (speBOE and speEOE) mutants. Importantly, both mgsA-depleted speBOE and speEOE mutants (speBOE/mgsA- and speEOE/mgsA-) were drastically shortened to 24.5% and 23.8% of parental speBOE and speEOE mutants, respectively. These phenotypes were associated with reciprocal alterations of mgsA and polyamine transcripts governed by the contents of methylglyoxal and spermidine, which are involved in enzymatic or genetic metabolite-control mechanisms. Additionally, biophysically detected methylglyoxal-spermidine Schiff bases did not affect morphogenesis. Taken together, the findings indicate that methylglyoxal triggers cell elongation. Furthermore, cells with methylglyoxal accumulation commonly exhibit an elongated rod-shaped morphology through upregulation of mgsA, polyamine genes, and the global regulator spx, as well as repression of the cell division and shape regulator, FtsZ.
Collapse
Affiliation(s)
- Sang-Min Shin
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea
| | - Sung-Hyun Song
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea
| | - Jin-Woo Lee
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea
| | - Min-Kyu Kwak
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea.
| | - Sa-Ouk Kang
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea.
| |
Collapse
|
57
|
Wiśniewska A, Olszanecki R, Totoń-Żurańska J, Kuś K, Stachowicz A, Suski M, Gębska A, Gajda M, Jawień J, Korbut R. Anti-Atherosclerotic Action of Agmatine in ApoE-Knockout Mice. Int J Mol Sci 2017; 18:ijms18081706. [PMID: 28777310 PMCID: PMC5578096 DOI: 10.3390/ijms18081706] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 07/31/2017] [Accepted: 08/01/2017] [Indexed: 12/30/2022] Open
Abstract
Atherosclerosis is an inflammatory disease in which dysfunction of mitochondria play an important role, and disorders of lipid management intensify this process. Agmatine, an endogenous polyamine formed by decarboxylation of arginine, exerts a protective effect on mitochondria and modulates fatty acid metabolism. We investigated the effect of exogenous agmatine on the development of atherosclerosis and changes in lipid profile in apolipoprotein E knockout (apoE-/-) mice. Agmatine caused an approximate 40% decrease of atherosclerotic lesions, as estimated by en face and cross-section methods with an influence on macrophage but not on smooth muscle content in the plaques. Agmatine treatment did not changed gelatinase activity within the plaque area. What is more, the action of agmatine was associated with an increase in the number of high density lipoproteins (HDL) in blood. Real-Time PCR analysis showed that agmatine modulates liver mRNA levels of many factors involved in oxidation of fatty acid and cholesterol biosynthesis. Two-dimensional electrophoresis coupled with mass spectrometry identified 27 differentially expressed mitochondrial proteins upon agmatine treatment in the liver of apoE-/- mice, mostly proteins related to metabolism and apoptosis. In conclusion, prolonged administration of agmatine inhibits atherosclerosis in apoE-/- mice; however, the exact mechanisms linking observed changes and elevations of HDL plasma require further investigation.
Collapse
Affiliation(s)
- Anna Wiśniewska
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| | - Rafał Olszanecki
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| | - Justyna Totoń-Żurańska
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| | - Katarzyna Kuś
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| | - Aneta Stachowicz
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| | - Maciej Suski
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| | - Anna Gębska
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| | - Mariusz Gajda
- Department of Histology, Jagiellonian University Medical College, 31-034 Krakow, Poland.
| | - Jacek Jawień
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| | - Ryszard Korbut
- Department of Pharmacology, Jagiellonian University Medical College, 31-531 Krakow, Poland.
| |
Collapse
|
58
|
Di Dalmazi G, Quinkler M, Deutschbein T, Prehn C, Rayes N, Kroiss M, Berr CM, Stalla G, Fassnacht M, Adamski J, Reincke M, Beuschlein F. Cortisol-related metabolic alterations assessed by mass spectrometry assay in patients with Cushing's syndrome. Eur J Endocrinol 2017; 177:227-237. [PMID: 28566446 DOI: 10.1530/eje-17-0109] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/21/2017] [Accepted: 05/30/2017] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Endogenous hypercortisolism is a chronic condition associated with severe metabolic disturbances and cardiovascular sequela. The aim of this study was to characterize metabolic alterations in patients with different degrees of hypercortisolism by mass-spectrometry-based targeted plasma metabolomic profiling and correlate the metabolomic profile with clinical and hormonal data. DESIGN Cross-sectional study. METHODS Subjects (n = 149) were classified according to clinical and hormonal characteristics: Cushing's syndrome (n = 46), adrenocortical adenomas with autonomous cortisol secretion (n = 31) or without hypercortisolism (n = 27). Subjects with suspicion of hypercortisolism, but normal hormonal/imaging testing, served as controls (n = 42). Clinical and hormonal data were retrieved for all patients and targeted metabolomic profiling was performed. RESULTS Patients with hypercortisolism showed lower levels of short-/medium-chain acylcarnitines and branched-chain and aromatic amino acids, but higher polyamines levels, in comparison to controls. These alterations were confirmed after excluding diabetic patients. Regression models showed significant correlation between cortisol after dexamethasone suppression test (DST) and 31 metabolites, independently of confounding/contributing factors. Among those, histidine and spermidine were also significantly associated with catabolic signs and symptoms of hypercortisolism. According to an discriminant analysis, the panel of metabolites was able to correctly classify subjects into the main diagnostic categories and to distinguish between subjects with/without altered post-DST cortisol and with/without diabetes in >80% of the cases. CONCLUSIONS Metabolomic profiling revealed alterations of intermediate metabolism independently associated with the severity of hypercortisolism, consistent with disturbed protein synthesis/catabolism and incomplete β-oxidation, providing evidence for the occurrence of metabolic inflexibility in hypercortisolism.
Collapse
Affiliation(s)
- Guido Di Dalmazi
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, München, Germany
- Division of Endocrinology, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | - Timo Deutschbein
- Division of Endocrinology/Diabetology, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Cornelia Prehn
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Munich, Germany
| | - Nada Rayes
- Department of General-, Visceral and Transplant Surgery, Charité Campus Virchow Clinic, Berlin, Germany
| | - Matthias Kroiss
- Central Laboratory, University Hospital Würzburg, Würzburg, Germany
| | - Christina M Berr
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, München, Germany
| | - Günter Stalla
- Max-Planck-Institute of Psychiatry, Clinical Neuroendocrinology Unit, München, Germany
| | - Martin Fassnacht
- Division of Endocrinology/Diabetology, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
- Central Laboratory, University Hospital Würzburg, Würzburg, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Munich, Germany
- Lehrstuhl für Experimentelle Genetik, Technische Universität München, German Center for Diabetes Research (DZD), Neuherberg, Germany
| | | | - Felix Beuschlein
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, München, Germany
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Universitätsspital Zürich, Zürich, Switzerland
| |
Collapse
|
59
|
Agmatine: multifunctional arginine metabolite and magic bullet in clinical neuroscience? Biochem J 2017; 474:2619-2640. [DOI: 10.1042/bcj20170007] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/23/2017] [Accepted: 05/25/2017] [Indexed: 12/12/2022]
Abstract
Agmatine, the decarboxylation product of arginine, was largely neglected as an important player in mammalian metabolism until the mid-1990s, when it was re-discovered as an endogenous ligand of imidazoline and α2-adrenergic receptors. Since then, a wide variety of agmatine-mediated effects have been observed, and consequently agmatine has moved from a wallflower existence into the limelight of clinical neuroscience research. Despite this quantum jump in scientific interest, the understanding of the anabolism and catabolism of this amine is still vague. The purification and biochemical characterization of natural mammalian arginine decarboxylase and agmatinase still are open issues. Nevertheless, the agmatinergic system is currently one of the most promising candidates in order to pharmacologically interfere with some major diseases of the central nervous system, which are summarized in the present review. Particularly with respect to major depression, agmatine, its derivatives, and metabolizing enzymes show great promise for the development of an improved treatment of this common disease.
Collapse
|
60
|
Plasma N-acetylputrescine, cadaverine and 1,3-diaminopropane: potential biomarkers of lung cancer used to evaluate the efficacy of anticancer drugs. Oncotarget 2017; 8:88575-88585. [PMID: 29179458 PMCID: PMC5687628 DOI: 10.18632/oncotarget.19304] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 06/16/2017] [Indexed: 01/17/2023] Open
Abstract
Polyamines have been widely investigated as potential biomarkers for various types of cancers, including lung cancer, which is one of the most common causes of death from cancer worldwide. This study was carried out to evaluate the value of polyamines that serve as early diagnostic and cancer progression markers as well as drug evaluation for lung cancer (squamous cell carcinoma of lung, SCCL). SCCL was induced in Wistar rats by intratracheal instillation of 3-methylcholanthrene and treated with three different anti-cancer drugs, Aidi injections, fluorouracil, and a combination of them. After carcinogenesis for 28, 70 and 98 days and therapy for 28 and 56 days, the polyamine levels in plasma of SCCL, healthy and treated rats were determined using a UHPLC-MS/MS assay base on the means of targeted metabolomics. Results showed that increased N-acetylputrescine, cadaverine and 1,3-diaminopropane levels were associated with progression of SCCL. The levels of cadaverine and 1,3-diaminopropane returned to normal after administration of the three different kinds of anticancer drug. In addition, the suitability of using N-acetylputrescine, cadaverine and 1,3-diaminopropane as biomarkers was confirmed by PLS-DA and ROC analysis. It can provide an innovative and effective way for the clinical diagnosis, prevention and treatment of lung cancer, and stimulate a theoretical basis for the design and development of new anticancer drugs. At the same time, this increased the clinical options for polyamines as cancer biomarkers.
Collapse
|
61
|
Raczyńska ED, Gal JF, Maria PC. The guanylated bioamine agmatine – A theoretical investigation of its structure and exceptional high basicity in the gas phase. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.03.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
62
|
Bilani N, Bahmad H, Abou-Kheir W. Prostate Cancer and Aspirin Use: Synopsis of the Proposed Molecular Mechanisms. Front Pharmacol 2017; 8:145. [PMID: 28377721 PMCID: PMC5359278 DOI: 10.3389/fphar.2017.00145] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 03/07/2017] [Indexed: 12/18/2022] Open
Abstract
Background: Prostate cancer (PCa) is a critical health burden, impacting the morbidity and mortality of millions of men around the world. Most of the patients with PCa have their disease at first sensitive to androgen deprivation treatments, but later they develop resistance to therapy and eventually die of metastatic castration-resistant prostate cancer (CRPC). Although the newly developed anti-androgen therapies are effectively alleviating symptoms and prolonging lives of patients, there are still no curable treatments for CRPC. Recently, statistical studies have shown that the chronic use of aspirin might be significantly associated with better outcomes in PCa patients. Through this review, we aim to identify the different proposed molecular mechanisms relating aspirin to the pathobiology of PCa neoplasms, with a major focus on basic research done in this context. Methods: Articles were retrieved via online database searching of PubMed and MEDLINE between 1946 and September 2016. Keywords and combinations related to PCa and aspirin were used to perform the search. Abstracts of the articles were studied by two independent reviewers and then data extraction was performed on the relevant articles that met our review objectives. Results: Aspirin, a non-steroidal anti-inflammatory drug (NSAID), affects the proliferation, apoptosis, resistance and metastasis of PCa cell lines, through both COX-dependent and COX-independent mechanisms. It also lowers levels of the PCa diagnostic marker prostate specific antigen (PSA), suggesting that clinicians need to at least be aware if their patients are using Aspirin chronically. Conclusion: This review strongly warrants further consideration of the signaling cascades activated by aspirin, which may lead to new knowledge that might be applied to improve diagnosis, prognosis and treatment of PCa.
Collapse
Affiliation(s)
- Nadeem Bilani
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut Beirut, Lebanon
| | - Hisham Bahmad
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut Beirut, Lebanon
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut Beirut, Lebanon
| |
Collapse
|
63
|
Ceci R, Duranti G, Leonetti A, Pietropaoli S, Spinozzi F, Marcocci L, Amendola R, Cecconi F, Sabatini S, Mariottini P, Cervelli M. Adaptive responses of heart and skeletal muscle to spermine oxidase overexpression: Evaluation of a new transgenic mouse model. Free Radic Biol Med 2017; 103:216-225. [PMID: 28043891 DOI: 10.1016/j.freeradbiomed.2016.12.040] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 12/22/2016] [Accepted: 12/26/2016] [Indexed: 12/16/2022]
Abstract
Spermine oxidase oxidizes spermine to produce H2O2, spermidine, and 3-aminopropanal. It is involved in cell drug response, apoptosis, and in the etiology of several pathologies, including cancer. Spermine oxidase is an important positive regulator of muscle gene expression and fiber size and, when repressed, leads to muscle atrophy. We have generated a transgenic mouse line overexpressing Smox gene in all organs, named Total-Smox. The spermine oxidase overexpression was revealed by β-Gal staining and reverse-transcriptase/PCR analysis, in all tissues analysed. Spermine oxidase activity resulted higher in Total-Smox than controls. Considering the important role of this enzyme in muscle physiology, we have focused our study on skeletal muscle and heart of Total-Smox mice by measuring redox status and oxidative damage. We assessed the redox homeostasis through the analysis of the reduced/oxidized glutathione ratio. Chronic H2O2 production induced by spermine oxidase overexpression leads to a cellular redox state imbalance in both tissues, although they show different redox adaptation. In skeletal muscle, catalase and glutathione S-transferase activities were significantly increased in Total-Smox mice compared to controls. In the heart, no differences were found in CAT activity level, while GST activity decreased compared to controls. The skeletal muscle showed a lower oxidative damage than in the heart, evaluated by lipid peroxidation and protein carbonylation. Altogether, our findings illustrate that skeletal muscle adapts more efficiently than heart to oxidative stress H2O2-induced. The Total-Smox line is a new genetic model useful to deepen our knowledge on the role of spermine oxidase in muscle atrophy and muscular pathological conditions like dystrophy.
Collapse
Affiliation(s)
- Roberta Ceci
- Unit of Biology, Genetics and Biochemistry, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, 00135, Rome, Italy
| | - Guglielmo Duranti
- Unit of Biology, Genetics and Biochemistry, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, 00135, Rome, Italy
| | | | | | | | - Lucia Marcocci
- Department of Biochemical Sciences 'A.Rossi Fanelli', La Sapienza University, Rome, Italy
| | | | - Francesco Cecconi
- Department of Biology, University of Rome 'Tor Vergata', 00133, Rome, Italy; Unit of Cell Stress and Survival, Danish Cancer Society Research Center, 2100, Copenhagen, Denmark
| | - Stefania Sabatini
- Unit of Biology, Genetics and Biochemistry, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, 00135, Rome, Italy
| | | | - Manuela Cervelli
- Department of Sciences, Roma Tre Università, 00146, Rome, Italy.
| |
Collapse
|
64
|
Hussain T, Tan B, Ren W, Rahu N, Kalhoro DH, Yin Y. Exploring polyamines: Functions in embryo/fetal development. ACTA ACUST UNITED AC 2016; 3:7-10. [PMID: 29767087 PMCID: PMC5941083 DOI: 10.1016/j.aninu.2016.12.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/11/2016] [Accepted: 12/15/2016] [Indexed: 11/28/2022]
Abstract
Polyamines such as putrescine, spermidine, spermine and agmatine are aliphatic polycationic compounds present in all living cells, and are derived from amino acids, intestinal bacteria, exfoliated enterocytes and supported from diet. Polyamines as the key compounds play essential role in cell proliferation, growth and differentiation. They also exert significant effects on embryonic development, implantation, embryonic diapause, placentation, angiogensis and fetal development. This review paper summarizes the functions of polyamines and embryo/fetus development and its regulatory mechanism which should help to provide some evidences for clinic.
Collapse
Affiliation(s)
- Tarique Hussain
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China.,University of Chinese Academy of Sciences, Beijing 10008, China
| | - Bi'e Tan
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China.,Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, Hunan Collaborative Innovation Center of Animal Production Safety, Changsha 410000, China
| | - Wenkai Ren
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China.,University of Chinese Academy of Sciences, Beijing 10008, China
| | - Najma Rahu
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam 70050, Pakistan
| | - Dildar Hussain Kalhoro
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam 70050, Pakistan
| | - Yulong Yin
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China.,University of Chinese Academy of Sciences, Beijing 10008, China
| |
Collapse
|
65
|
Scozzafava A, Supuran CT, Carta F. Polyamines and α-Carbonic Anhydrases. Molecules 2016; 21:E1726. [PMID: 27983696 PMCID: PMC6273118 DOI: 10.3390/molecules21121726] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 11/22/2016] [Accepted: 12/12/2016] [Indexed: 11/16/2022] Open
Abstract
Natural products represent a straightforward source for molecular structures bearing a vast array of chemical features and potentially useful for biomedical purposes. Recent examples of this type include the discovery of the coumarins and the polyamine natural products as atypical chemotypes for the inhibition of the metalloenzymes carbonic anhydrases (CAs; EC 4.2.2.1). CA enzymes are established pharmacological targets for important pathologies, which, among others, include glaucoma, hypoxic tumors, and central nervous system (CNS)-affecting diseases. Moreover, they are expressed in many bacteria, fungi and helminths which are the etiological agents of the majority of infectious diseases. In this context, natural products represent the ideal source of new and selective druggable CA modulators for biomedical purposes. Herein we report the state of the art on polyamines of natural origin as well as of synthetic derivatives as inhibitors of human CAs.
Collapse
Affiliation(s)
- Andrea Scozzafava
- Laboratorio di Chimica Bioinorganica, Università degli Studi di Firenze, Rm. 188, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
| | - Claudiu T Supuran
- NEUROFARBA Department, University of Florence, Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| | - Fabrizio Carta
- NEUROFARBA Department, University of Florence, Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| |
Collapse
|
66
|
Milestones and recent discoveries on cell death mediated by mitochondria and their interactions with biologically active amines. Amino Acids 2016; 48:2313-26. [PMID: 27619911 DOI: 10.1007/s00726-016-2323-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 08/25/2016] [Indexed: 12/19/2022]
Abstract
Mitochondria represent cell "powerhouses," being involved in energy transduction from the electrochemical gradient to ATP synthesis. The morphology of their cell types may change, according to various metabolic processes or osmotic pressure. A new morphology of the inner membrane and mitochondrial cristae, significantly different from the previous one, has been proposed for the inner membrane and mitochondrial cristae, based on the technique of electron tomography. Mitochondrial Ca(2+) transport (the transporter has been isolated) generates reactive oxygen species and induces the mitochondrial permeability transition of both inner and outer mitochondrial membranes, leading to induction of necrosis and apoptosis. In the mitochondria of several cell types (liver, kidney, and heart), mitochondrial oxidative stress is an essential step in the induction of cell death, although not in brain, in which the phenomenon is caused by a different mechanism. Mitochondrial permeability transition drives both apoptosis and necrosis, whereas mitochondrial outer membrane permeability is characteristic of apoptosis. Adenine nucleotide translocase remains the most important component involved in membrane permeability, with the opening of the transition pore, although other proteins, such as ATP synthase or phosphate carriers, have been proposed. Intrinsic cell death is triggered by the release from mitochondria of proteic factors, such as cytochrome c, apoptosis inducing factor, and Smac/DIABLO, with the activation of caspases upon mitochondrial permeability transition or mitochondrial outer membrane permeability induction. Mitochondrial permeability transition induces the permeability of the inner membrane in sites in contact with the outer membrane; mitochondrial outer membrane permeability forms channels on the outer membrane by means of various stimuli involving Bcl-2 family proteins. The biologically active amines, spermine, and agmatine, have specific functions on mitochondria which distinguish them from other amines. Enzymatic oxidative deamination of spermine by amine oxidases in tumor cells may produce reactive oxygen species, leading to transition pore opening and apoptosis. This process could be exploited as a new therapeutic strategy to combat cancer.
Collapse
|
67
|
|
68
|
Tamoxifen metabolite endoxifen interferes with the polyamine pathway in breast cancer. Amino Acids 2016; 48:2293-302. [PMID: 27438264 DOI: 10.1007/s00726-016-2300-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 07/11/2016] [Indexed: 12/27/2022]
Abstract
Tamoxifen is the most widely used drug to treat women with estrogen receptor α (ERα)-positive breast cancer. Endoxifen is recognized as the active metabolite of tamoxifen in humans. We studied endoxifen effects on ERα-positive MCF-7 breast cancer cells. Estradiol increased the proliferation of MCF-7 cells by two- to threefold and endoxifen suppressed its effects. Endoxifen suppressed c-myc, c-fos and Tff1 oncogene expression, as revealed by RT-PCR. Estradiol increased the activity of ornithine decarboxylase (ODC) and adenosyl methioninedecarboxylase (AdoMetDC), whereas endoxifen suppressed these enzyme activities. Endoxifen increased activities of spermine oxidase (SMO) and acetyl polyamine oxidase (APAO) significantly, and reduced the levels of putrescine and spermidine. These data suggest a possible mechanism for the antiestrogenic effects of tamoxifen/endoxifen, involving the stimulation of polyamine oxidase enzymes. Therefore, SMO and APAO stimulation might be useful biomarkers for the efficacy of endoxifen treatment of breast cancer.
Collapse
|
69
|
Jaenisch S, Squire M, Butler R, Yazbeck R. In vitro development and validation of a non-invasive (13)C-stable isotope assay for ornithine decarboxylase. J Breath Res 2016; 10:026009. [PMID: 27137347 DOI: 10.1088/1752-7155/10/2/026009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Oesophageal cancer is a significant cause of cancer related mortality, with increasing incidence worldwide. Ornithine decarboxylase (ODC) is an enzyme involved in polyamine synthesis and cellular proliferation, and ODC expression and activity has been implicated as a prognostic marker of oesophageal cancer. This study aimed to develop and optimise an in vitro (13)C-stable isotope assay for ODC activity as a non-invasive marker of oesophageal cancer. Experiments were performed in triplicate (n = 3/group/cell line) using Caco2, HeLa, Flo-1, OE33, TE7 and OE21 cell lines (colorectal, cervical, oesophageal adenocarcinoma and oesophageal squamous carcinoma respectively). Following addition of 2mM (13)C-ornithine to cells, 10 ml gas samples were collected from the headspace every 20 min for a total of five hours. Gas samples were analysed using isotope ratio mass spectrometry to quantify (13)CO2. Assay specificity was determined using the selective ODC inhibitor, N-(4'-Pyridoxil)-Ornithine(BOC)-OMe (POB). All data is expressed as δ (13)CO2 from baseline. High ODC activity was detected by (13)C-ornithine assay in Caco2 (32.00 ± 1.12 δ (13)CO2) in contrast to HeLa cells (5.44 ± 0.14 δ (13)CO2) cells. POB inhibited activity in Caco2 cells to 12.87 ± 1.10 δ (13)CO2. Differential ODC activity was detected in all oesophageal cancer cells, and 53 h incubation of cell lines with POB reduced activity by 72%, 56%, 64% and 69% in the Flo-1, OE33, OE21 and TE7 cell lines respectively. We have shown that ODC activity can be selectively detected by a non-invasive, stable-isotope (13)C-ornithine assay. ODC activity was detected in all oesophageal cancer cell lines in vitro. Further studies are indicated to quantify ODC activity in oesophageal cancer patients.
Collapse
Affiliation(s)
- Simone Jaenisch
- School of Medicine, Department of Surgery, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia. Flinders Centre for Innovation in Cancer, Flinders University, Adelaide, South Australia, Australia
| | | | | | | |
Collapse
|
70
|
Competition reaction-based prediction of polyamines’ stepwise protonation constants: a case study involving 1,4,7,10-tetraazadecane (2,2,2-tet). Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1898-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
71
|
Protective Effects of Agmatine against Chlorpromazine- Induced Toxicity in the Liver of Wistar Rats. ACTA FACULTATIS MEDICAE NAISSENSIS 2016. [DOI: 10.1515/afmnai-2016-0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
SummaryThe metabolic pathways of chlorpromazine (CPZ) toxicity were tracked by assessing oxidative/nitrosative stress markers. The main objective of the study was to test the hypothesis that agmatine (AGM) prevents oxidative/nitrosative stress in the liver of Wistar rats 15 days after administration of CPZ. All tested substances were administered intraperitoneally (i.p.) for 15 consecutive days. The rats were divided into four groups: the control group (C, 0.9 % saline solution), the CPZ group (CPZ, 38.7 mg/kg b.w.), the CPZ+AGM group (AGM, 75 mg/kg b.w. immediately after CPZ, 38.7 mg/kg b.w. i.p.) and the AGM group (AGM, 75 mg/kg b.w.).Rats were decapitated 15 days after the appropriate treatment. In the CPZ group, CPZ concentration was significantly increased compared to C values (p<0.01), while AGM treatment induced the significant decrease in CPZ concentration in the CPZ+AGM group (p<0.05) and the AGM group (p<0.01). CPZ application to healthy rats did not lead to any changes of lipid peroxidation in the liver compared to the C group, but AGM treatment decreased that parameter compared to the CPZ group (p<0.05). In CPZ liver homogenates, nitrite and nitrate concentrations were increased compared to controls (p<0.001), and AGM treatment diminished that parameter in the CPZ group (p<0.05), as well as in the AGM group (p<0.001). In CPZ animals, glutathione level and catalase activity were decreased in comparison with C values (p<0.01 respectively), but AGM treatment increased the activity of catalase in comparison with CPZ animals (p<0.05 respectively). Western blot analysis supported biochemical findings in all groups. Our results showed that treatment with AGM significantly supressed the oxidative/nitrosative stress parameters and restored antioxidant defense in rat liver.
Collapse
|
72
|
El-Kashef DH, El-Kenawi AE, Rahim MA, Suddek GM, Salem HA. Agmatine improves renal function in gentamicin-induced nephrotoxicity in rats. Can J Physiol Pharmacol 2016; 94:278-86. [DOI: 10.1139/cjpp-2015-0321] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The present study was designed to explore the possible protective effects of agmatine, a known nitric oxide (NO) synthase inhibitor, against gentamicin-induced nephrotoxicity in rats. For this purpose, we quantitatively evaluated gentamicin-induced renal structural and functional alterations using histopathological and biochemical approaches. Furthermore, the effect of agmatine on gentamicin-induced hypersensitivity of urinary bladder rings to acetylcholine (ACh) was evaluated. Twenty-four male Wistar albino rats were randomly divided into 3 groups, namely control, gentamicin (100 mg/kg, i.p.), and gentamicin plus agmatine (40 mg/kg, orally). At the end of the study, all rats were sacrificed and then blood and urine samples and kidneys were taken. Administration of agmatine significantly decreased kidney/body mass ratio, serum creatinine, lactate dehydrogenase (LDH), renal malondialdehyde (MDA), myeloperoxidase (MPO), NO, and tumor necrosis factor-alpha (TNF-α) while it significantly increased creatinine clearance and renal superoxide dismutase (SOD) activity when compared with the gentamicin-treated group. Additionally, agmatine ameliorated tissue morphology as evidenced by histological evaluation and reduced the responses of isolated bladder rings to ACh. Our study indicates that agmatine administration with gentamicin attenuates oxidative-stress associated renal injury by reducing oxygen free radicals and lipid peroxidation, restoring NO level and inhibiting inflammatory mediators such as TNF-α.
Collapse
Affiliation(s)
- Dalia H. El-Kashef
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Asmaa E. El-Kenawi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Mona Abdel Rahim
- Urology and Nephrology Center, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Ghada M. Suddek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Hatem A. Salem
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| |
Collapse
|
73
|
A Trans-omics Mathematical Analysis Reveals Novel Functions of the Ornithine Metabolic Pathway in Cancer Stem Cells. Sci Rep 2016; 6:20726. [PMID: 26864636 PMCID: PMC4749963 DOI: 10.1038/srep20726] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 01/11/2016] [Indexed: 01/26/2023] Open
Abstract
Bioinformatics and computational modelling are expected to offer innovative approaches in human medical science. In the present study, we performed computational analyses and made predictions using transcriptome and metabolome datasets obtained from fluorescence-based visualisations of chemotherapy-resistant cancer stem cells (CSCs) in the human oesophagus. This approach revealed an uncharacterized role for the ornithine metabolic pathway in the survival of chemotherapy-resistant CSCs. The present study fastens this rationale for further characterisation that may lead to the discovery of innovative drugs against robust CSCs.
Collapse
|
74
|
Titova AG, Krest’yaninov MA, Zaichikov AM. Thermodynamic and structural characteristics of aqueous diamine solutions. J STRUCT CHEM+ 2016. [DOI: 10.1134/s0022476616010157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
75
|
Mallick S, Chandra F, Koner AL. A ratiometric fluorescent probe for detection of biogenic primary amines with nanomolar sensitivity. Analyst 2016; 141:827-31. [DOI: 10.1039/c5an01911g] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An ultrasensitive ratiometric fluorescent sensor made of an N,N-dimethylaminonaphthalene anhydride moiety for detection of aliphatic primary amines is reported.
Collapse
Affiliation(s)
- Suman Mallick
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Bhopal-462066
- India
| | - Falguni Chandra
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Bhopal-462066
- India
| | - Apurba L. Koner
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Bhopal-462066
- India
| |
Collapse
|
76
|
García D, Ordenes P, Benítez J, González A, García-Robles MA, López V, Carvajal N, Uribe E. Cloning of two LIMCH1 isoforms: characterization of their distribution in rat brain and their agmatinase activity. Histochem Cell Biol 2015; 145:305-13. [PMID: 26678503 DOI: 10.1007/s00418-015-1389-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2015] [Indexed: 10/25/2022]
Abstract
Agmatine, a precursor for polyamine biosynthesis, is also associated with neurotransmitter, anticonvulsant, antineurotoxic and antidepressant actions in the brain. This molecule results from the decarboxylation of L-arginine by arginine decarboxylase, and it is hydrolyzed to urea and putrescine by agmatinase. Recently, we have described a new protein that also hydrolyzes agmatine, agmatinase-like protein (ALP), which was identified through immunohistochemical analysis in the hypothalamus and hippocampus of rats. However, its sequence differs greatly from all known agmatinases and does not contain the typical Mn(2+) ligands associated with the urea hydrolase family of proteins. ALP has a LIM-like domain close to its carboxyl terminus, and the removal of which results in a truncated variant with a tenfold increased k cat value and a threefold decreased K m value for agmatine. Analysis of the gene database revealed several transcripts, denominated LIMCH1 isoforms, with extreme 3' sequences identical to ALP. Limch1 gene products have been described as members of a multi-domain family of proteins with the biggest isoform containing a calponin homology (CH) domain at its N-terminus. Here, we cloned two LIMCH1 transcripts, one of 3177 bp and the other of 2709 bp (ALP contains 1569 bp) and analyzed LIMCH1 expression and distribution in rat brain using RT-PCR, Western blot and immunohistochemical analyses. LIMCH1 was detected mainly in the hypothalamic and hippocampal regions, which is similar to the distribution of ALP and agmatine in brain. In addition, we cloned and expressed both isoforms in E. coli and confirmed that they were catalytically active on agmatine with kinetic parameters similar to ALP. LIM domain-truncated variants of both isoforms moderately increased the k cat and catalytic efficiency. Thus, we propose that LIMCH1 is useful to regulate the intracellular concentrations of the neurotransmitter/neuromodulator, agmatine.
Collapse
Affiliation(s)
- David García
- Departamento de Ciencias Biológicas y Químicas, Facultad de Ciencias, Universidad San Sebastián, Lientur 1457, Concepción, Chile
| | - Patricio Ordenes
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - José Benítez
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - Arlette González
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - María A García-Robles
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - Vasthi López
- Departamento de Ciencias Biomédicas, Universidad Católica del Norte, Coquimbo, Chile
| | - Nelson Carvajal
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - Elena Uribe
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.
| |
Collapse
|
77
|
Abstract
Carbon–sulfur biological chemistry encompasses a fascinating area of biochemistry and medicinal chemistry and includes the roles that methionine and S-adenosyl-l-methionine play in cells as well as the chemistry of intracellular thiols such as glutathione. This article, based on the 2014 Bernard Belleau Award lecture, provides an overview of some of the key investigations that were undertaken in this area from a bioorganic perspective. The research has ameliorated our fundamental knowledge of several of the enzymes utilizing these sulfur-containing molecules, has led to the development of several novel 19F biophysical probes, and has explored some of the medicinal chemistry associated with these processes.
Collapse
Affiliation(s)
- John F. Honek
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| |
Collapse
|
78
|
Nader MA, Gamiel NM, El-Kashef H, Zaghloul MS. Effect of agmatine on experimental vascular endothelial dysfunction. Hum Exp Toxicol 2015; 35:573-82. [PMID: 26424770 DOI: 10.1177/0960327115597311] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This study was designed to investigate the effect of agmatine sulfate (AG, CAS2482-00-0) in nicotine (NIC)-induced vascular endothelial dysfunction (VED) in rabbits. NIC was administered to produce VED in rabbits with or without AG for 6 weeks. Serum lipid profile, serum thiobarbituric acid reactive substances, reduced glutathione, superoxide dismutase generation, serum nitrite/nitrate, serum vascular cellular adhesion molecule-1 (VCAM-1), and aortic nuclear factor κB (NF-κB) levels were analyzed.Treatment with AG markedly improves lipid profile and prevented NIC-induced VED and oxidative stress. The mechanism of AG in improving NIC-induced VED may be due to the significant reduction in serum VCAM-1 levels and aortic NF-κB. Thus, it may be concluded that AG reduces the oxidative stress, nitric oxide production, VCAM-1 levels, and aortic NF-κB expression, thereby consequently improving the integrity of vascular endothelium.
Collapse
MESH Headings
- Agmatine/pharmacology
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/pathology
- Aorta, Thoracic/physiopathology
- Cholesterol, HDL/blood
- Cholesterol, LDL/blood
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Endothelium, Vascular/physiopathology
- Glutathione/blood
- Lipid Peroxidation/drug effects
- Male
- Nicotine/toxicity
- Nitric Oxide/blood
- Oxidative Stress/drug effects
- Rabbits
- Superoxide Dismutase/blood
- Triglycerides/blood
Collapse
Affiliation(s)
- M A Nader
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Dakahlia Governorate, Egypt Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, El-Madinah El-Munawarah, Kingdom of Saudi Arabia
| | - N M Gamiel
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Dakahlia Governorate, Egypt
| | - H El-Kashef
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Dakahlia Governorate, Egypt
| | - M S Zaghloul
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Dakahlia Governorate, Egypt
| |
Collapse
|
79
|
Gracie K, Smith WE, Yip P, Sutter JU, Birch DJS, Graham D, Faulds K. Interaction of fluorescent dyes with DNA and spermine using fluorescence spectroscopy. Analyst 2015; 139:3735-43. [PMID: 24915043 DOI: 10.1039/c4an00680a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oligonucleotides labelled with fluorescent dyes are widely used as probes for the identification of DNA sequences in detection methods using optical spectroscopies such as fluorescence and surface enhanced Raman scattering (SERS). Spermine is widely used in surface enhanced based assays as a charge reduction and aggregating agent as it interacts strongly with the phosphate backbone and has shown to enhance the signal of a labelled oligonucleotide. The fluorescence intensity of two commonly used labels, FAM and TAMRA, were compared when spermine was added under different experimental conditions. There was a marked difference upon conjugating the free dye to an oligonucleotide, when FAM was conjugated to an oligonucleotide there was around a six fold decrease in emission, compared to a six fold increase when TAMRA was conjugated to an oligonucleotide. Dye labelled single and double stranded DNA also behaved differently with double stranded DNA labelled with FAM being a much more efficient emitter in the mid pH range, however TAMRA becomes increasingly less efficient as the pH rises. Upon addition of the base spermine, signal enhancement from the FAM labelled oligonucleotide is observed. Increasing probe concentrations of TAMRA oligonucleotide above 0.5 μM led to signal reduction most likely through quenching, either by an interaction with guanine, or through self-quenching. By using different bases for comparison, spermine and triethylamine (TEA), different affects were observed in the measured fluorescence signals. When TEA was added to FAM, a reduction in the pH dependence of fluorescence was observed, which may be useful for mid pH range assays. With the drive to increase information content and decrease time and complexity of DNA assays it is likely that more assays will be carried out in complex media such as extracted DNA fragments and PCR product. This model study indicates that dye DNA and dye spermine interactions are dye specific and that extreme care with conditions is necessary particularly if it is intended to determine the concentrations of multiple analytes using probes labelled with different dyes.
Collapse
Affiliation(s)
- K Gracie
- Centre of Molecular Nanometrology, WestChem, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK.
| | | | | | | | | | | | | |
Collapse
|
80
|
Nedeljko P, Turel M, Lobnik A. Fluorescence-Based Determination of Agmatine in Dietary Supplements. ANAL LETT 2015. [DOI: 10.1080/00032719.2014.991962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
81
|
Adeyinka AS, Cukrowski I. Structural-topological preferences and protonation sequence of aliphatic polyamines: a theoretical case study of tetramine trien. J Mol Model 2015; 21:162. [PMID: 26037149 DOI: 10.1007/s00894-015-2709-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 05/19/2015] [Indexed: 11/28/2022]
Abstract
A large set of lowest and medium energy conformers of aliphatic tetramine trien was used to uncover structural-topological preferences of poliamines. Numerous common structural features among HL and H 2 L tautomers were identified, e.g., H-atoms of protonated functional groups are always involved in intramolecular NH•••N interactions and they result in as large and as many as possible rings in lowest energy conformers. Largest, 11-membered, molecular rings stabilize a molecule most and they appeared to be strain free whereas 5-memebred intramolecular rings were most strained (all formed due to NH•••N interactions). The CH•••HC interactions with QTAIM-defined atomic interaction lines were also found but, surprisingly, mainly in the lowest energy conformers of HL tautomers. According to the non-covalent interaction-based (NCI) analysis, 5-memebered rings formed by CH•••HC interactions are not strained and, in general, 3D NCI isosurfaces mimic those obtained for weaker NH•••N interactions. Also, 3D NCI isosurfaces found for NH•••N and CH•••HC interactions, regardless whether linked or not by an atomic interaction line, appeared to be indistinguishable. Using lowest energy conformers, theoretically predicted mixture of primary (HL p ) and secondary (HL s ) forms of trien was found to be in accord with the literature reports; using linear conformers resulted in predicting HL s as the only tautomer formed. In contrast to HF, the overall performance of B3LYP was found satisfactory for the purpose of the study.
Collapse
Affiliation(s)
- Adedapo S Adeyinka
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Lynnwood Road, Hatfield, 0002, Pretoria, South Africa
| | | |
Collapse
|
82
|
Eslami Moghadam M, Saidifar M, Divsalar A, Mansouri-Torshizi H, Saboury AA, Farhangian H, Ghadamgahi M. Rich spectroscopic and molecular dynamic studies on the interaction of cytotoxic Pt(II) and Pd(II) complexes of glycine derivatives with calf thymus DNA. J Biomol Struct Dyn 2015; 34:206-22. [DOI: 10.1080/07391102.2015.1015056] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
83
|
Cukrowski I, de Lange JH, Adeyinka AS, Mangondo P. Evaluating common QTAIM and NCI interpretations of the electron density concentration through IQA interaction energies and 1D cross-sections of the electron and deformation density distributions. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2014.10.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
84
|
The polyamine spermine promotes survival and activation of human eosinophils. J Allergy Clin Immunol 2015; 136:482-4.e11. [PMID: 25649081 DOI: 10.1016/j.jaci.2014.12.1922] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 11/27/2014] [Accepted: 12/10/2014] [Indexed: 01/06/2023]
|
85
|
Ruiz-Pérez MV, Medina MÁ, Urdiales JL, Keinänen TA, Sánchez-Jiménez F. Polyamine metabolism is sensitive to glycolysis inhibition in human neuroblastoma cells. J Biol Chem 2015; 290:6106-19. [PMID: 25593318 DOI: 10.1074/jbc.m114.619197] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Polyamines are essential for cell proliferation, and their levels are elevated in many human tumors. The oncogene n-myc is known to potentiate polyamine metabolism. Neuroblastoma, the most frequent extracranial solid tumor in children, harbors the amplification of n-myc oncogene in 25% of the cases, and it is associated with treatment failure and poor prognosis. We evaluated several metabolic features of the human neuroblastoma cell lines Kelly, IMR-32, and SK-N-SH. We further investigated the effects of glycolysis impairment in polyamine metabolism in these cell lines. A previously unknown linkage between glycolysis impairment and polyamine reduction is unveiled. We show that glycolysis inhibition is able to trigger signaling events leading to the reduction of N-Myc protein levels and a subsequent decrease of both ornithine decarboxylase expression and polyamine levels, accompanied by cell cycle blockade preceding cell death. New anti-tumor strategies could take advantage of the direct relationship between glucose deprivation and polyamine metabolism impairment, leading to cell death, and its apparent dependence on n-myc. Combined therapies targeting glucose metabolism and polyamine synthesis could be effective in the treatment of n-myc-expressing tumors.
Collapse
Affiliation(s)
- M Victoria Ruiz-Pérez
- From the Universidad de Málaga, Andalucía Tech, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, and IBIMA (Biomedical Research Institute of Málaga), 29071 Málaga, Spain,
| | - Miguel Ángel Medina
- From the Universidad de Málaga, Andalucía Tech, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, and IBIMA (Biomedical Research Institute of Málaga), 29071 Málaga, Spain, Unidad 741, CIBER de Enfermedades Raras (CIBERER), Málaga, Spain, and
| | - José Luis Urdiales
- From the Universidad de Málaga, Andalucía Tech, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, and IBIMA (Biomedical Research Institute of Málaga), 29071 Málaga, Spain, Unidad 741, CIBER de Enfermedades Raras (CIBERER), Málaga, Spain, and
| | - Tuomo A Keinänen
- the School of Pharmacy, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627 FIN-70211 Kuopio, Finland
| | - Francisca Sánchez-Jiménez
- From the Universidad de Málaga, Andalucía Tech, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, and IBIMA (Biomedical Research Institute of Málaga), 29071 Málaga, Spain, Unidad 741, CIBER de Enfermedades Raras (CIBERER), Málaga, Spain, and
| |
Collapse
|
86
|
Pleva P, Buňková L, Theimrová E, Bartošáková V, Buňka F, Purevdorj K. Biogenic amines in smear and mould-ripened cheeses. POTRAVINARSTVO 2014. [DOI: 10.5219/408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
87
|
Mitić N, Miraula M, Selleck C, Hadler KS, Uribe E, Pedroso MM, Schenk G. Catalytic mechanisms of metallohydrolases containing two metal ions. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2014; 97:49-81. [PMID: 25458355 DOI: 10.1016/bs.apcsb.2014.07.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
At least one-third of enzymes contain metal ions as cofactors necessary for a diverse range of catalytic activities. In the case of polymetallic enzymes (i.e., two or more metal ions involved in catalysis), the presence of two (or more) closely spaced metal ions gives an additional advantage in terms of (i) charge delocalisation, (ii) smaller activation barriers, (iii) the ability to bind larger substrates, (iv) enhanced electrostatic activation of substrates, and (v) decreased transition-state energies. Among this group of proteins, enzymes that catalyze the hydrolysis of ester and amide bonds form a very prominent family, the metallohydrolases. These enzymes are involved in a multitude of biological functions, and an increasing number of them gain attention for translational research in medicine and biotechnology. Their functional versatility and catalytic proficiency are largely due to the presence of metal ions in their active sites. In this chapter, we thus discuss and compare the reaction mechanisms of several closely related enzymes with a view to highlighting the functional diversity bestowed upon them by their metal ion cofactors.
Collapse
Affiliation(s)
- Nataša Mitić
- Department of Chemistry, National University of Ireland, Maynooth, Maynooth, Co. Kildare, Ireland.
| | - Manfredi Miraula
- Department of Chemistry, National University of Ireland, Maynooth, Maynooth, Co. Kildare, Ireland; School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Christopher Selleck
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Kieran S Hadler
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Elena Uribe
- Department of Biochemistry and Molecular Biology, University of Concepción, Concepción, Chile
| | - Marcelo M Pedroso
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Gerhard Schenk
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia.
| |
Collapse
|
88
|
Abstract
Recent progress with techniques for monitoring RNA structure in cells such as ‘DMS-Seq’ and ‘Structure-Seq’ suggests that a new era of RNA structure-function exploration is on the horizon. This will also include systematic investigation of the factors required for the structural integrity of RNA. In this context, much evidence accumulated over 50 years suggests that polyamines play important roles as modulators of RNA structure. Here, we summarize and discuss recent literature relating to the roles of these small endogenous molecules in RNA function. We have included studies directed at understanding the binding interactions of polyamines with polynucleotides, tRNA, rRNA, mRNA and ribozymes using chemical, biochemical and spectroscopic tools. In brief, polyamines bind RNA in a sequence-selective fashion and induce changes in RNA structure in context-dependent manners. In some cases the functional consequences of these interactions have been observed in cells. Most notably, polyamine-mediated effects on RNA are frequently distinct from those of divalent cations (i.e. Mg2+) confirming their roles as independent molecular entities which help drive RNA-mediated processes.
Collapse
Affiliation(s)
- Helen L Lightfoot
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, CH-8093, Zürich, Switzerland
| | - Jonathan Hall
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zürich, CH-8093, Zürich, Switzerland
| |
Collapse
|
89
|
Kournoutou GG, Pytharopoulou S, Leotsinidis M, Kalpaxis DL. Changes of polyamine pattern in digestive glands of mussel Mytilus galloprovincialis under exposure to cadmium. Comp Biochem Physiol C Toxicol Pharmacol 2014; 165:1-8. [PMID: 24874079 DOI: 10.1016/j.cbpc.2014.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 05/15/2014] [Accepted: 05/18/2014] [Indexed: 01/07/2023]
Abstract
Polyamines, in particular spermidine and spermine, have been identified as important antioxidants, highly induced by oxidative stress in a variety of organisms. However, little is known about changes in polyamine content of metal-stressed marine organisms. In the present study, mussels (Mytilus galloprovincialis) were experimentally exposed to 25 μg/L Cd(2+) or 100 μg/L Cd(2+) for up to 15 days. Cd(2+) was progressively accumulated in mussel tissues, leading to a characteristic oxidative-stress status. Free putrescine (PUT) production was noticeably induced in response to Cd(2+) at day 5 and then declined. In contrast, free spermidine (SPD) content was gradually reduced, whereas the concentration of free spermine (SPM) increased. In combination, these changes led to a 69% or 88% reduction in the ratio of (SPD+SPM)/PUT at day 5, dependent on the Cd(2+) concentration used, which subsequently followed an upward trend in values, albeit not reaching those of controls. Conjugated polyamines constantly increased, in particular conjugated spermidine and spermine, tagging along with metallothionein production. Acetylated polyamines showed a diverse profile of changes, but their content was generally kept at low levels throughout the exposure period. Collectively, our results suggest that certain polyamine compounds could play a significant role in the tolerance of mussels against Cd(2+)-mediated stress, and that the ratio (SPD+SPM)/PUT could be a good indicator of the metal-stress status.
Collapse
Affiliation(s)
- Georgia G Kournoutou
- Laboratory of Biochemistry, School of Medicine, University of Patras, 26504 Patras, Greece.
| | - Sofia Pytharopoulou
- Laboratory of Biochemistry, School of Medicine, University of Patras, 26504 Patras, Greece.
| | - Michel Leotsinidis
- Laboratory of Public Health, School of Medicine, University of Patras, 26504 Patras, Greece.
| | - Dimitrios L Kalpaxis
- Laboratory of Biochemistry, School of Medicine, University of Patras, 26504 Patras, Greece.
| |
Collapse
|
90
|
Nascent histamine induces α-synuclein and caspase-3 on human cells. Biochem Biophys Res Commun 2014; 451:580-6. [PMID: 25124665 DOI: 10.1016/j.bbrc.2014.08.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 08/05/2014] [Indexed: 11/20/2022]
Abstract
Histamine (Hia) is the most multifunctional biogenic amine. It is synthetized by histidine decarboxylase (HDC) in a reduced set of mammalian cell types. Mast cells and histaminergic neurons store Hia in specialized organelles until the amine is extruded by exocytosis; however, other immune and cancer cells are able to produce but not store Hia. The intracellular effects of Hia are still not well characterized, in spite of its physiopathological relevance. Multiple functional relationships exist among Hia metabolism/signaling elements and those of other biogenic amines, including growth-related polyamines. Previously, we obtained the first insights for an inhibitory effect of newly synthetized Hia on both growth-related polyamine biosynthesis and cell cycle progression of non-fully differentiated mammalian cells. In this work, we describe progress in this line. HEK293 cells were transfected to express active and inactive versions of GFP-human HDC fusion proteins and, after cell sorting by flow cytometry, the relative expression of a large number of proteins associated with cell signaling were measured using an antibody microarray. Experimental results were analyzed in terms of protein-protein and functional interaction networks. Expression of active HDC induced a cell cycle arrest through the alteration of the levels of several proteins such as cyclin D1, cdk6, cdk7 and cyclin A. Regulation of α-synuclein and caspase-3 was also observed. The analyses provide new clues on the molecular mechanisms underlying the regulatory effects of intracellular newly synthetized Hia on cell proliferation/survival, cell trafficking and protein turnover. This information is especially interesting for emergent and orphan immune and neuroinflammatory diseases.
Collapse
|
91
|
Sekhar AR, Kaloo MA, Sankar J. Aliphatic Amine Discrimination by Pentafluorophenyl Dibromo BODIPY. Chem Asian J 2014; 9:2422-6. [DOI: 10.1002/asia.201402389] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Indexed: 01/12/2023]
|
92
|
Abstract
The field of mitochondrial ion channels has recently seen substantial progress, including the molecular identification of some of the channels. An integrative approach using genetics, electrophysiology, pharmacology, and cell biology to clarify the roles of these channels has thus become possible. It is by now clear that many of these channels are important for energy supply by the mitochondria and have a major impact on the fate of the entire cell as well. The purpose of this review is to provide an up-to-date overview of the electrophysiological properties, molecular identity, and pathophysiological functions of the mitochondrial ion channels studied so far and to highlight possible therapeutic perspectives based on current information.
Collapse
|
93
|
Venancio-Marques A, Bergen A, Rossi-Gendron C, Rudiuk S, Baigl D. Photosensitive polyamines for high-performance photocontrol of DNA higher-order structure. ACS NANO 2014; 8:3654-3663. [PMID: 24580129 DOI: 10.1021/nn500266b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Polyamines are small, ubiquitous, positively charged molecules that play an essential role in numerous biological processes such as DNA packaging, gene regulation, neuron activity, and cell proliferation. Here, we synthesize the first series of photosensitive polyamines (PPAs) and demonstrate their ability to photoreversibly control nanoscale DNA higher-order structure with high efficiency. We show with fluorescence microscopy imaging that the efficiency of the PPAs as DNA-compacting agents is directly correlated to their molecular charge. Micromolar concentration of the most efficient molecule described here, a PPA containing three charges at neutral pH, compacts DNA molecules from a few kilobase pairs to a few hundred kilobase pairs, while subsequent 3 min UV illuminations at 365 nm triggers complete unfolding of DNA molecules. Additional application of blue light (440 nm for 3 min) induces the refolding of DNA into the compact state. Atomic force microscopy reveals that the compaction involves a global folding of the whole DNA molecule, whereas UV-induced unfolding is a modification initiated from the periphery of the compacted DNA, resulting in the occurrence of intermediate flower-like structures prior to the fully unfolded state.
Collapse
Affiliation(s)
- Anna Venancio-Marques
- Ecole Normale Supérieure-PSL Research University , Department of Chemistry, 24 Rue Lhomond, F-75005, Paris, France
| | | | | | | | | |
Collapse
|
94
|
Wang X, Stearns NA, Li X, Pisetsky DS. The effect of polyamines on the binding of anti-DNA antibodies from patients with SLE and normal human subjects. Clin Immunol 2014; 153:94-103. [PMID: 24732074 DOI: 10.1016/j.clim.2014.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 04/02/2014] [Accepted: 04/04/2014] [Indexed: 11/18/2022]
Abstract
Antibodies to DNA (anti-DNA) are the serological hallmark of systemic lupus erythematosus (SLE). To elucidate specificity further, the effect of polyamines on the binding of anti-DNA antibodies from patients with lupus was tested by ELISA to calf thymus (CT) DNA; we also assessed the binding of plasmas of patients and normal human subjects (NHS) to Micrococcus luteus (MC) DNA. As these studies showed, spermine can dose-dependently inhibit SLE anti-DNA binding to CT DNA and can promote dissociation of preformed immune complexes. With MC DNA as antigen, spermine failed to inhibit the NHS anti-DNA binding. Studies using plasmas adsorbed to a CT DNA cellulose affinity indicated that SLE plasmas are mixtures of anti-DNA that differ in inhibition by spermine and binding to conserved and non-conserved determinants. Together, these studies demonstrate that spermine can influence the binding of anti-DNA autoantibodies and may contribute to the antigenicity of DNA.
Collapse
Affiliation(s)
- Xiao Wang
- Department of Rheumatology, Qilu Hospital, Shandong University, Jinan, China; Medical Research Service, Durham Veterans Administration Medical Center, Durham, NC, USA
| | - Nancy A Stearns
- Medical Research Service, Durham Veterans Administration Medical Center, Durham, NC, USA; Duke University Medical Center, Durham, NC, USA
| | - Xingfu Li
- Department of Rheumatology, Qilu Hospital, Shandong University, Jinan, China
| | - David S Pisetsky
- Medical Research Service, Durham Veterans Administration Medical Center, Durham, NC, USA; Duke University Medical Center, Durham, NC, USA.
| |
Collapse
|
95
|
Chemoprevention of prostate cancer with the polyamine synthesis inhibitor difluoromethylornithine. Recent Results Cancer Res 2014; 202:115-20. [PMID: 24531785 DOI: 10.1007/978-3-642-45195-9_14] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In vitro and in vivo preclinical results suggest that inhibition of polyamine synthesis inhibits the progression of prostate cancer. These findings has led to two clinical trials in patients at risk for invasive prostate cancer with difluoromethylornithine which specifically and irreversibly inhibits ornithine decarboxylase which catalyses the conversion of ornithine to putrescine the rate limiting step in polyamines synthesis. We have conducted a phase IIa one month and placebo randomized phase IIb 12 months trials in patients at increased risk for invasive prostate cancer. Favorable reduction in prostate polyamine levels and prostate volume was documented with no difference in clinical hearing changes. Patients with Gleason's VI lesions in a surveillance cohort would be appropriate candidates for a definitive risk reduction trial although the unavailability of validated biomarkers for invasive progression would require a large and lengthy study.
Collapse
|
96
|
Wu B, Wang X, Ma W, Zheng W, Jiang L. Assay of OAZ1 mRNA levels in chronic myeloid leukemia combined with application of leukemia PCR array identified relevant gene changes affected by antizyme. Acta Haematol 2013; 131:141-7. [PMID: 24192781 DOI: 10.1159/000353406] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 05/19/2013] [Indexed: 11/19/2022]
Abstract
Ornithine decarboxylase antizyme (OAZ) has recently emerged as a potential therapeutic target in various malignant tumors because it plays vital roles in cellular functions including proliferation, differentiation, apoptosis and genomic stability. Therefore, there is a significant interest in discovering its function in chronic myeloid leukemia (CML). Firstly, OAZ1 mRNA was measured by qRT-PCR in 43 cases with CML and 23 controls, and we demonstrated that it is significantly down-regulated in CML patients. To further understand its functions in CML pathogenesis, OAZ1 was overexpressed, and the human leukemia PCR array analysis was used to monitor the expression of key genes commonly involved in leukemia development, classification and therapeutic response. We found several favorable up-regulation factors including CXCL10, DAPK1 and IKZF3. In conclusion, OAZ1 may be a useful therapeutic target in CML due to its potential ability to induce erythroid differentiation and cell apoptosis. These functions were proven to be associated with several gene changes that were directly or indirectly caused by OAZ1. The mechanism of how OAZ1 affects other genes remains to be elucidated.
Collapse
MESH Headings
- Apoptosis/genetics
- Case-Control Studies
- Chemokine CXCL10/genetics
- Down-Regulation
- Erythropoiesis/genetics
- Humans
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Proteins/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Neoplasm/genetics
- RNA, Neoplasm/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Transforming Growth Factor beta/genetics
- Up-Regulation
Collapse
Affiliation(s)
- Bingping Wu
- Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | | | | | | | | |
Collapse
|
97
|
Grancara S, Martinis P, Manente S, García-Argáez AN, Tempera G, Bragadin M, Dalla Via L, Agostinelli E, Toninello A. Bidirectional fluxes of spermine across the mitochondrial membrane. Amino Acids 2013; 46:671-9. [PMID: 24043461 DOI: 10.1007/s00726-013-1591-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 09/04/2013] [Indexed: 02/08/2023]
Abstract
The polyamine spermine is transported into the mitochondrial matrix by an electrophoretic mechanism having as driving force the negative electrical membrane potential (ΔΨ). The presence of phosphate increases spermine uptake by reducing ΔpH and enhancing ΔΨ. The transport system is a specific uniporter constituted by a protein channel exhibiting two asymmetric energy barriers with the spermine binding site located in the energy well between the two barriers. Although spermine transport is electrophoretic in origin, its accumulation does not follow the Nernst equation for the presence of an efflux pathway. Spermine efflux may be induced by different agents, such as FCCP, antimycin A and mersalyl, able to completely or partially reduce the ΔΨ value and, consequently, suppress or weaken the force necessary to maintain spermine in the matrix. However this efflux may also take place in normal conditions when the electrophoretic accumulation of the polycationic polyamine induces a sufficient drop in ΔΨ able to trigger the efflux pathway. The release of the polyamine is most probably electroneutral in origin and can take place in exchange with protons or in symport with phosphate anion. The activity of both the uptake and efflux pathways induces a continuous cycling of spermine across the mitochondrial membrane, the rate of which may be prominent in imposing the concentrations of spermine in the inner and outer compartment. Thus, this event has a significant role on mitochondrial permeability transition modulation and consequently on the triggering of intrinsic apoptosis.
Collapse
Affiliation(s)
- Silvia Grancara
- Department of Biomedical Sciences, University of Padua, Viale U. Bassi 58 B, 35131, Padua, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
98
|
Witherspoon M, Chen Q, Kopelovich L, Gross SS, Lipkin SM. Unbiased metabolite profiling indicates that a diminished thymidine pool is the underlying mechanism of colon cancer chemoprevention by alpha-difluoromethylornithine. Cancer Discov 2013; 3:1072-81. [PMID: 23771434 PMCID: PMC3770777 DOI: 10.1158/2159-8290.cd-12-0305] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
UNLABELLED The ornithine decarboxylase inhibitor α-difluoromethylornithine (DFMO) is a highly effective chemopreventive agent for colorectal cancer thought to act via polyamine depletion. However, in DFMO-treated patients, mucosal polyamine levels do not directly correlate with colorectal cancer risk. Untargeted metabolite profiling was used to broadly survey DFMO actions on colon cancer cell metabolism. We found that DFMO treatment of Apc(Min) intestinal tumors and human colorectal cancer cells is associated with reduced levels of folate-dependent metabolites, including S-adenosylmethionine (SAM), thymidine pools, and related pathway intermediates. We hypothesized that unrestrained SAM consumption/regeneration constitutes a futile DFMO-triggered cascade that can steal tetrahydrofolate from thymidylate synthase and thereby diminish thymidine pools. In accord with this hypothesis, DFMO treatment altered the folate cofactor balance and thymidine supplementation prevented DFMO-elicited cytostasis without restoring polyamine levels. These findings suggest that thymidine metabolite pool insufficiency is a fundamental mechanism of DFMO cytostatic activity. SIGNIFICANCE A previously unappreciated metabolic linkage between polyamine and thymidine biosynthesis is revealed, based on the competing requirement of these pathways for a limited pool of tetrahydrofolate cofactor. This study identifies the fi rst shared mechanism for colorectal cancer chemoprevention and chemotherapy, suggesting a common metabolic target for both premalignant and malignant colon cells.
Collapse
Affiliation(s)
- Mavee Witherspoon
- 1Departments of Medicine, Genetic Medicine and Cell Biology, and 2Pharmacology, Weill Cornell College of Medicine, New York, New York; and 3Division of Chemoprevention, National Cancer Institute, Frederick, Maryland
| | | | | | | | | |
Collapse
|
99
|
Sánchez-Jiménez F, Ruiz-Pérez MV, Urdiales JL, Medina MA. Pharmacological potential of biogenic amine-polyamine interactions beyond neurotransmission. Br J Pharmacol 2013; 170:4-16. [PMID: 23347064 PMCID: PMC3764843 DOI: 10.1111/bph.12109] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 12/10/2012] [Accepted: 12/31/2012] [Indexed: 12/14/2022] Open
Abstract
Histamine, serotonin and dopamine are biogenic amines involved in intercellular communication with multiple effects on human pathophysiology. They are products of two highly homologous enzymes, histidine decarboxylase and l-aromatic amino acid decarboxylase, and transmit their signals through different receptors and signal transduction mechanisms. Polyamines derived from ornithine (putrescine, spermidine and spermine) are mainly involved in intracellular effects related to cell proliferation and death mechanisms. This review summarizes structural and functional evidence for interactions between components of all these amine metabolic and signalling networks (decarboxylases, transporters, oxidases, receptors etc.) at cellular and tissue levels, distinct from nervous and neuroendocrine systems, where the crosstalk among these amine-related components can also have important pathophysiological consequences. The discussion highlights aspects that could help to predict and discuss the effects of intervention strategies.
Collapse
Affiliation(s)
- F Sánchez-Jiménez
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Spain.
| | | | | | | |
Collapse
|
100
|
Vijayanathan V, Agostinelli E, Thomas T, Thomas TJ. Innovative approaches to the use of polyamines for DNA nanoparticle preparation for gene therapy. Amino Acids 2013; 46:499-509. [DOI: 10.1007/s00726-013-1549-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 06/26/2013] [Indexed: 12/19/2022]
|