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Zheng K, Li M. Predicting Survival Signature of Bladder Cancer Related to Cancer-Associated Fibroblast (CAF) Constructed by Intersecting Genes in TCGA and GEO. Mol Biotechnol 2023:10.1007/s12033-023-00892-y. [PMID: 37749482 DOI: 10.1007/s12033-023-00892-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 09/04/2023] [Indexed: 09/27/2023]
Abstract
Bladder cancer was one of the most common carcinomas around the world. However, the mechanism of the disease still remained to be investigated. We expected to establish a prognostic survival model with 9 prognostic genes to predict overall survival (OS) in patients of bladder cancer. The gene expression data of bladder cancer were obtained from TCGA and GEO datasets. TCGA and GEO datasets were used for screening prognostic genes along with developing and validating a 9-gene prognostic survival model by method of weighted gene co-expression network analysis (WGCNA) and LASSO with Cox regression. The relative analysis of evaluate tumor burden mutation (TBM), GO, KEGG, chemotherapy drug and functional pathway were also performed based on CAF-related mRNAs. 151 Overlapping CAF-related genes were distinguished after intersecting differentially expressed genes from 945 genes in TCGA and 491 genes in GEO dataset. 9 Prognostic genes (MSRB2, AGMAT, KLF6, DDAH2, GADD45B, SERPINE2, STMN3, TEAD2, and COMP) were used for construction of prognostic model after LASSO with Cox regression. Receiver operating characteristic (ROC) curves showed a good survival prediction by this model. Functional analysis indicated chemokine, cytokine, ECM interaction, oxidative stress and apoptosis were highly appeared. Potential drugs targeted different CAF-related genes like vemurafenib, irofulven, ghiotepa, and idarubicin were found as well. We constructed a novel 9 CAF-related mRNAs prognostic model and explored the gene expression and potential functional information of related genes, which might be worthy of clinical application. In addition, potential chemotherapy drugs could provide useful insights into the potential clinical treatment of bladder cancer.
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Affiliation(s)
- Kaifeng Zheng
- Department of Chemoradiotherapy, The Affiliated People's Hospital of Ningbo University, Ningbo, China.
| | - Mengting Li
- Department of Gastroenterology, The Affiliated People's Hospital of Ningbo University, Ningbo, China
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2
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Tang J, Wu X, Cheng B, Lu Y. Identification of a polyamine-related signature and six novel prognostic biomarkers in oral squamous cell carcinoma. Front Mol Biosci 2023; 10:1073770. [PMID: 36733434 PMCID: PMC9887031 DOI: 10.3389/fmolb.2023.1073770] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/03/2023] [Indexed: 01/18/2023] Open
Abstract
Elevated polyamine levels are required for tumor transformation and development; however, expression patterns of polyamines and their diagnostic potential have not been investigated in oral squamous cell carcinoma (OSCC), and its impact on prognosis has yet to be determined. A total of 440 OSCC samples and clinical data were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO). Consensus clustering was conducted to classify OSCC patients into two subgroups based on the expression of the 17 polyamine regulators. Polyamine-related differentially expressed genes (PARDEGs) among distinct polyamine clusters were determined. To create a prognostic model, PARDEGs were examined in the training cohorts using univariate-Lasso-multivariate Cox regression analyses. Six prognostic genes, namely, "CKS2," "RIMS3," "TRAC," "FMOD," CALML5," and "SPINK7," were identified and applied to develop a predictive model for OSCC. According to the median risk score, the patients were split into high-risk and low-risk groups. The predictive performance of the six gene models was proven by the ROC curve analysis of the training and validation cohorts. Kaplan-Meier curves revealed that the high-risk group had poorer prognosis. Furthermore, the low-risk group was more susceptible to four chemotherapy drugs according to the IC50 of the samples computed by the "pRRophetic" package. The correlation between the risk scores and the proportion of immune cells was calculated. Meanwhile, the tumor mutational burden (TMB) value of the high-risk group was higher. Real-time quantitative polymerase chain reaction was applied to verify the genes constructing the model. The possible connections of the six genes with various immune cell infiltration and therapeutic markers were anticipated. In conclusion, we identified a polyamine-related prognostic signature, and six novel biomarkers in OSCC, which may provide insights to identify new treatment targets for OSCC.
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Affiliation(s)
- Jiezhang Tang
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Xuechen Wu
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Bo Cheng
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan, China,*Correspondence: Bo Cheng, ; Yajie Lu,
| | - Yajie Lu
- Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi’an, China,*Correspondence: Bo Cheng, ; Yajie Lu,
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Bui TI, Britt EA, Muthukrishnan G, Gill SR. Probiotic induced synthesis of microbiota polyamine as a nutraceutical for metabolic syndrome and obesity-related type 2 diabetes. Front Endocrinol (Lausanne) 2023; 13:1094258. [PMID: 36714575 PMCID: PMC9880209 DOI: 10.3389/fendo.2022.1094258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/16/2022] [Indexed: 01/15/2023] Open
Abstract
The gut microbiota regulates multiple facets of host metabolism and immunity through the production of signaling metabolites, such as polyamines which are small organic compounds that are essential to host cell growth and lymphocyte activation. Polyamines are most abundant in the intestinal lumen, where their synthesis by the gut microbiota is influenced by microbiome composition and host diet. Disruption of the host gut microbiome in metabolic syndrome and obesity-related type 2 diabetes (obesity/T2D) results in potential dysregulation of polyamine synthesis. A growing body of evidence suggests that restoration of the dysbiotic gut microbiota and polyamine synthesis is effective in ameliorating metabolic syndrome and strengthening the impaired immune responses of obesity/T2D. In this review, we discuss existing studies on gut microbiome determinants of polyamine synthesis, polyamine production in obesity/T2D, and evidence that demonstrates the potential of polyamines as a nutraceutical in obesity/T2D hosts.
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Affiliation(s)
- Tina I. Bui
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, United States
| | - Emily A. Britt
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, United States
| | - Gowrishankar Muthukrishnan
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, United States
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
- Department of Orthopedics, University of Rochester Medical Center, Rochester, NY, United States
| | - Steven R. Gill
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, United States
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
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Sinn M, Stanoppi M, Hauth F, Fleming JR, Funck D, Mayans O, Hartig JS. Guanidino acid hydrolysis by the human enzyme annotated as agmatinase. Sci Rep 2022; 12:22088. [PMID: 36543883 PMCID: PMC9772407 DOI: 10.1038/s41598-022-26655-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Guanidino acids such as taurocyamine, guanidinobutyrate, guanidinopropionate, and guanidinoacetate have been detected in humans. However, except for guanidionacetate, which is a precursor of creatine, their metabolism and potential functions remain poorly understood. Agmatine has received considerable attention as a potential neurotransmitter and the human enzyme so far annotated as agmatinase (AGMAT) has been proposed as an important modulator of agmatine levels. However, conclusive evidence for the assigned enzymatic activity is lacking. Here we show that AGMAT hydrolyzed a range of linear guanidino acids but was virtually inactive with agmatine. Structural modelling and direct biochemical assays indicated that two naturally occurring variants differ in their substrate preferences. A negatively charged group in the substrate at the end opposing the guanidine moiety was essential for efficient catalysis, explaining why agmatine was not hydrolyzed. We suggest to rename AGMAT as guanidino acid hydrolase (GDAH). Additionally, we demonstrate that the GDAH substrates taurocyamine, guanidinobutyrate and guanidinopropionate were produced by human glycine amidinotransferase (GATM). The presented findings show for the first time an enzymatic activity for GDAH/AGMAT. Since agmatine has frequently been proposed as an endogenous neurotransmitter, the current findings clarify important aspects of the metabolism of agmatine and guanidino acid derivatives in humans.
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Affiliation(s)
- Malte Sinn
- grid.9811.10000 0001 0658 7699Department of Chemistry, University of Konstanz, Konstanz, Germany
| | - Marco Stanoppi
- grid.9811.10000 0001 0658 7699Department of Chemistry, University of Konstanz, Konstanz, Germany
| | - Franziskus Hauth
- grid.9811.10000 0001 0658 7699Department of Chemistry, University of Konstanz, Konstanz, Germany ,grid.9811.10000 0001 0658 7699Konstanz Research School Chemical Biology (KoRS-CB), University of Konstanz, Konstanz, Germany
| | - Jennifer R. Fleming
- grid.9811.10000 0001 0658 7699Department of Biology, University of Konstanz, Konstanz, Germany
| | - Dietmar Funck
- grid.9811.10000 0001 0658 7699Department of Chemistry, University of Konstanz, Konstanz, Germany
| | - Olga Mayans
- grid.9811.10000 0001 0658 7699Konstanz Research School Chemical Biology (KoRS-CB), University of Konstanz, Konstanz, Germany ,grid.9811.10000 0001 0658 7699Department of Biology, University of Konstanz, Konstanz, Germany
| | - Jörg S. Hartig
- grid.9811.10000 0001 0658 7699Department of Chemistry, University of Konstanz, Konstanz, Germany ,grid.9811.10000 0001 0658 7699Konstanz Research School Chemical Biology (KoRS-CB), University of Konstanz, Konstanz, Germany
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5
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Islam A, Shaukat Z, Hussain R, Gregory SL. One-Carbon and Polyamine Metabolism as Cancer Therapy Targets. Biomolecules 2022; 12:biom12121902. [PMID: 36551330 PMCID: PMC9775183 DOI: 10.3390/biom12121902] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/09/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Cancer metabolic reprogramming is essential for maintaining cancer cell survival and rapid replication. A common target of this metabolic reprogramming is one-carbon metabolism which is notable for its function in DNA synthesis, protein and DNA methylation, and antioxidant production. Polyamines are a key output of one-carbon metabolism with widespread effects on gene expression and signaling. As a result of these functions, one-carbon and polyamine metabolism have recently drawn a lot of interest for their part in cancer malignancy. Therapeutic inhibitors that target one-carbon and polyamine metabolism have thus been trialed as anticancer medications. The significance and future possibilities of one-carbon and polyamine metabolism as a target in cancer therapy are discussed in this review.
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Affiliation(s)
- Anowarul Islam
- College of Medicine and Public Health, Flinders University, Adelaide 5042, Australia
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, Australia
| | - Zeeshan Shaukat
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, Australia
| | - Rashid Hussain
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, Australia
| | - Stephen L. Gregory
- College of Medicine and Public Health, Flinders University, Adelaide 5042, Australia
- Correspondence: ; Tel.: +61-0466987583
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Rani-AGARWAL N, Sarovar BHAVESH N, KACHHAWA G, Fatai OYEYEMI B. Metabolic profiling of Serum and urine in preeclampsia and gestational diabetes in early pregnancy. MEDICINE IN DRUG DISCOVERY 2022. [DOI: 10.1016/j.medidd.2022.100143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Research Progress and Potential Applications of Spermidine in Ocular Diseases. Pharmaceutics 2022; 14:pharmaceutics14071500. [PMID: 35890394 PMCID: PMC9323341 DOI: 10.3390/pharmaceutics14071500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/04/2022] [Accepted: 07/11/2022] [Indexed: 02/01/2023] Open
Abstract
Spermidine, a natural polyamine, exists in almost all human tissues, exhibiting broad properties like anti-aging, autophagy induction, anti-inflammation, anti-oxidation, cell proliferation activation, and ion channel regulation. Considering that spermidine is already present in human nutrition, recent studies targeting supplementing exogenous sources of this polyamine appear feasible. The protective role of spermidine in various systems has been illuminated in the literature, while recent progress of spermidine administration in ocular diseases remains to be clarified. This study shows the current landscape of studies on spermidine and its potential to become a promising therapeutic agent to treat ocular diseases: glaucoma, optic nerve injury, age-related macular degeneration (AMD), cataracts, dry eye syndrome, and bacterial keratitis. It also has the potential to become a potent biomarker to predict keratoconus (KC), cataracts, uveitis, glaucoma, proliferative diabetic retinopathy (PDR), proliferative vitreoretinopathy (PVR), and retinopathy of prematurity (ROP). We also summarize the routes of administration and the effects of spermidine at different doses.
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Yan TC, Cao J, Ye LH. Recent advances on discovery of enzyme inhibitors from natural products using bioactivity screening. J Sep Sci 2022; 45:2766-2787. [PMID: 35593478 DOI: 10.1002/jssc.202200084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/23/2022] [Accepted: 05/12/2022] [Indexed: 11/10/2022]
Abstract
The essence of enzymes is to keep the homeostasis and balance of human by catalyzing metabolic responses and modulating cell. Suppression of enzyme slows the progress of some diseases, making it a therapeutic target. Therefore, it is important to develop enzyme inhibitors by proper bioactivity screening strategies for the future treatment of some major diseases. In this review, we summarized the recent (2015-2020) applications of several screening strategies (electrophoretically mediated microanalysis, enzyme immobilization, affinity chromatography, and affinity ultrafiltration) in finding enzyme inhibitors from certain species of bioactive natural compounds of plant origin (flavonoids, alkaloids, phenolic acids, saponins, anthraquinones, coumarins). At the same time, the advantages and disadvantages of each strategy were also discussed, and the future possible development direction in enzyme inhibitor screening has prospected. To sum up, it is expected to help readers select suitable screening strategies for enzyme inhibitors and provide useful information for the study of the biological of specific kinds of natural products. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Tian-Ci Yan
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China
| | - Jun Cao
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China.,College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Li-Hong Ye
- Department of Traditional Chinese Medicine, Hangzhou Red Cross Hospital, Hangzhou, 310003, PR China
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9
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Hyperglycemic conditions proliferate triple negative breast cancer cells: role of ornithine decarboxylase. Breast Cancer Res Treat 2021; 190:255-264. [PMID: 34529197 DOI: 10.1007/s10549-021-06388-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 09/06/2021] [Indexed: 01/18/2023]
Abstract
PURPOSE Several cancer subtypes (pancreatic, breast, liver, and colorectal) rapidly advance to higher aggressive stages in diabetes. Though hyperglycemia has been considered as a fuel for growth of cancer cells, pathways leading to this condition are still under investigation. Cellular polyamines can modulate normal and cancer cell growth, and inhibitors of polyamine synthesis have been approved for treating colon cancer, however the role of polyamines in diabetes-mediated cancer advancement is unclear as yet. We hypothesized that polyamine metabolic pathway is involved with increased proliferation of breast cancer cells under high glucose (HG) conditions. METHODS Studies were performed with varying concentrations of glucose (5-25 mM) exposure in invasive, triple negative breast cancer cells, MDA-MB-231; non-invasive, estrogen/progesterone receptor positive breast cancer cells, MCF-7; and non-tumorigenic mammary epithelial cells, MCF-10A. RESULTS There was a significant increase in proliferation with HG (25 mM) at 48-72 h in both MDA-MB-231 and MCF-10A cells but no such effect was observed in MCF-7 cells. This was correlated to higher activity of ornithine decarboxylase (ODC), a rate-limiting enzyme in polyamine synthesis pathway. Inhibitor of polyamine synthesis (difluoromethylornithine, DFMO, 5 mM) was quite effective in suppressing HG-mediated cell proliferation and ODC activity in MDA-MB-231 and MCF-10A cells. Polyamine (putrescine) levels were significantly elevated with HG treatment in MDA-MB-231 cells. HG exposure also increased the metastasis of MDA-MB-231 cells. CONCLUSIONS Our cellular findings indicate that polyamine inhibition should be explored in patient population as a target for future chemotherapeutics in diabetic breast cancer.
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Novita Sari I, Setiawan T, Seock Kim K, Toni Wijaya Y, Won Cho K, Young Kwon H. Metabolism and function of polyamines in cancer progression. Cancer Lett 2021; 519:91-104. [PMID: 34186159 DOI: 10.1016/j.canlet.2021.06.020] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/11/2021] [Accepted: 06/22/2021] [Indexed: 01/18/2023]
Abstract
Polyamines are essential for the proliferation, differentiation, and development of eukaryotes. They include spermine, spermidine, and the diamine precursor putrescine, and are low-molecular-weight, organic polycations with more than two amino groups. Their intracellular concentrations are strictly maintained within a specific physiological range through several regulatory mechanisms in normal cells. In contrast, polyamine metabolism is dysregulated in many neoplastic states, including cancer. In various types of cancer, polyamine levels are elevated, and crosstalk occurs between polyamine metabolism and oncogenic pathways, such as mTOR and RAS pathways. Thus, polyamines might have potential as therapeutic targets in the prevention and treatment of cancer. The molecular mechanisms linking polyamine metabolism to carcinogenesis must be unraveled to develop novel inhibitors of polyamine metabolism. This overview describes the nature of polyamines, their association with carcinogenesis, the development of polyamine inhibitors and their potential, and the findings of clinical trials.
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Affiliation(s)
- Ita Novita Sari
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, 31151, Republic of Korea
| | - Tania Setiawan
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, 31151, Republic of Korea
| | - Kwang Seock Kim
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, 31151, Republic of Korea
| | - Yoseph Toni Wijaya
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, 31151, Republic of Korea
| | - Kae Won Cho
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, 31151, Republic of Korea; Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, 31151, Republic of Korea.
| | - Hyog Young Kwon
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, 31151, Republic of Korea; Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, 31151, Republic of Korea.
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Nakanishi S, Cleveland JL. Polyamine Homeostasis in Development and Disease. MEDICAL SCIENCES (BASEL, SWITZERLAND) 2021; 9:medsci9020028. [PMID: 34068137 PMCID: PMC8162569 DOI: 10.3390/medsci9020028] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/02/2021] [Accepted: 05/06/2021] [Indexed: 12/12/2022]
Abstract
Polycationic polyamines are present in nearly all living organisms and are essential for mammalian cell growth and survival, and for development. These positively charged molecules are involved in a variety of essential biological processes, yet their underlying mechanisms of action are not fully understood. Several studies have shown both beneficial and detrimental effects of polyamines on human health. In cancer, polyamine metabolism is frequently dysregulated, and elevated polyamines have been shown to promote tumor growth and progression, suggesting that targeting polyamines is an attractive strategy for therapeutic intervention. In contrast, polyamines have also been shown to play critical roles in lifespan, cardiac health and in the development and function of the brain. Accordingly, a detailed understanding of mechanisms that control polyamine homeostasis in human health and disease is needed to develop safe and effective strategies for polyamine-targeted therapy.
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Sari SA, Ulger D, Ersan S, Bakir D, Uzun Cicek A, Ismailoglu F. Effects of agmatine, glutamate, arginine, and nitric oxide on executive functions in children with attention deficit hyperactivity disorder. J Neural Transm (Vienna) 2020; 127:1675-1684. [PMID: 33026491 DOI: 10.1007/s00702-020-02261-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/28/2020] [Indexed: 12/25/2022]
Abstract
In this study, we aimed to investigate the effects of agmatine, nitric oxide (NO), arginine, and glutamate, which are the metabolites in the polyamine pathway, on the performance of executive functions (EF) in attention deficit hyperactivity disorder (ADHD). The ADHD group included 35 treatment-naive children (6-14 years old) who were ewly diagnosed with ADHD. The control group consisted of 35 healthy children with the same age and sex, having no previous psychiatric disorders. In the study groups, Stroop test (ST) and trail making test (TMT) were used to monitor EF, and blood samples were collected to measure agmatine with ultra-high-performance liquid chromatography and NO, glutamate, and arginine with enzyme-linked immunosorbent assay (ELISA). The EFs were significantly impaired in the ADHD group. The agmatine and arginine levels of the ADHD group were significantly higher than their peers. The NO and glutamate levels were also higher in the ADHD group compared to the control group, but these differences did not reach statistical significance. Children with ADHD had more difficulties during EF tasks compared to healthy children. The elevated NO and glutamate levels may be related with the impairment during EF tasks. Therefore, agmatine and arginine may increase to improve EF tasks through its inhibitory effect on the synthesis of NO and glutamate. Further studies are needed about polyamine pathway molecules to shed light on the pathophysiology of ADHD.
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Affiliation(s)
- Seda Aybuke Sari
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Sivas Cumhuriyet University, Imaret Village, 58140, Sivas, Turkey.
| | - Dilara Ulger
- Department of Biochemistry, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Serpil Ersan
- Department of Biochemistry, Faculty of Medicine, Nigde Omer Halis University, Nigde, Turkey
| | - Deniz Bakir
- Department of Biochemistry, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Ayla Uzun Cicek
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Sivas Cumhuriyet University, Imaret Village, 58140, Sivas, Turkey
| | - Firat Ismailoglu
- Department of Computer Engineering, Faculty of Engineering, Sivas Cumhuriyet University, Sivas, Turkey
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Cigdem B, Bolayir A, Celik VK, Kapancik S, Kilicgun H, Gokce SF, Gulunay A. The Role of Reduced Polyamine Synthesis in Ischemic Stroke. NEUROCHEM J+ 2020. [DOI: 10.1134/s1819712420020038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhu HE, Yin JY, Chen DX, He S, Chen H. Agmatinase promotes the lung adenocarcinoma tumorigenesis by activating the NO-MAPKs-PI3K/Akt pathway. Cell Death Dis 2019; 10:854. [PMID: 31699997 PMCID: PMC6838094 DOI: 10.1038/s41419-019-2082-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 09/13/2019] [Accepted: 10/17/2019] [Indexed: 12/24/2022]
Abstract
Lung adenocarcinoma (LUAD) is one of the leading causes of cancer-related death worldwide. There is an urgent need to uncover the pathogenic mechanism to develop new treatments. Agmatinase (AGMAT) expression and its association with clinicopathological characteristics were analyzed via GEO, Oncomine, and TCGA databases, and IHC staining in human LUAD specimens. An EdU cell proliferation kit, propidiumiodide staining, colony formation, cell migration, and invasion assays, and a xenograft tumor model were used to detect the biological function of AGMAT in LUAD. Furthermore, the expression level of nitric oxide (NO) was detected using a DAF-FMDA fluorescent probe or nitrite assay kit, and further validated with Carboxy-PTIO (a NO scavenger). The roles of three isoforms of nitric oxide synthases (nNOS, eNOS, and iNOS) were validated using L-NAME (eNOS inhibitor), SMT (iNOS inhibitor), and spermidine (nNOS inhibitor). AGMAT expression was up-regulated in LUAD tissues. LUAD patients with high AGMAT levels were associated with poorer prognoses. AGMAT promoted LUAD tumorigenesis in NO released by iNOS both in vitro and in vivo. Importantly, NO signaling up-regulated the expression of cyclin D1 via activating the MAPK and PI3K/Akt-dependent c-myc activity, ultimately promoting the malignant proliferation of tumor cells. On the whole, AGMAT promoted NO release via up-regulating the expression of iNOS. High levels of NO drove LUAD tumorigenesis via activating MAPK and PI3K/Akt cascades. AGMAT might be a potential diagnostic and therapeutic target for LUAD patients.
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Affiliation(s)
- Hui-Er Zhu
- Department of Emergency Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, PR China
| | - Jia-Yi Yin
- Department of Emergency Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, PR China
| | - De-Xiong Chen
- Department of Emergency Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, PR China
| | - Sheng He
- Department of Respiratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, PR China
| | - Hui Chen
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, PR China.
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