1
|
Jedrzejewska A, Jablonska P, Gawlik-Jakubczak T, Czajkowski M, Maszka P, Mierzejewska P, Smolenski RT, Slominska EM. Elevated Plasma Concentration of 4-Pyridone-3-carboxamide-1-β-D-ribonucleoside (4PYR) Highlights Malignancy of Renal Cell Carcinoma. Int J Mol Sci 2024; 25:2359. [PMID: 38397036 PMCID: PMC10888534 DOI: 10.3390/ijms25042359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 01/31/2024] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
Nicotinamide (NA) derivatives play crucial roles in various biological processes, such as inflammation, regulation of the cell cycle, and DNA repair. Recently, we proposed that 4-pyridone-3-carboxamide-1-β-D-ribonucleoside (4PYR), an unusual derivative of NA, could be classified as an oncometabolite in bladder, breast, and lung cancer. In this study, we investigated the relations between NA metabolism and the progression, recurrence, metastasis, and survival of patients diagnosed with different histological subtypes of renal cell carcinoma (RCC). We identified alterations in plasma NA metabolism, particularly in the clear cell RCC (ccRCC) subtype, compared to papillary RCC, chromophobe RCC, and oncocytoma. Patients with ccRCC also exhibited larger tumor sizes and elevated levels of diagnostic serum biomarkers, such as hsCRP concentration and ALP activity, which were positively correlated with the plasma 4PYR. Notably, 4PYR levels were elevated in advanced stages of ccRCC cancer and were associated with a highly aggressive phenotype of ccRCC. Additionally, elevated concentrations of 4PYR were related to a higher likelihood of mortality, recurrence, and particularly metastasis in ccRCC. These findings are consistent with other studies, suggesting that NA metabolism is accelerated in RCC, leading to abnormal concentrations of 4PYR. This supports the concept of 4PYR as an oncometabolite and a potential prognostic factor in the ccRCC subtype.
Collapse
Affiliation(s)
- Agata Jedrzejewska
- Department of Biochemistry, Medical University of Gdansk, 80-211 Gdansk, Poland; (A.J.); (P.J.); (P.M.); (P.M.)
| | - Patrycja Jablonska
- Department of Biochemistry, Medical University of Gdansk, 80-211 Gdansk, Poland; (A.J.); (P.J.); (P.M.); (P.M.)
| | - Teresa Gawlik-Jakubczak
- Department of Urology, Medical University of Gdansk, 80-211 Gdansk, Poland; (T.G.-J.); (M.C.)
| | - Mateusz Czajkowski
- Department of Urology, Medical University of Gdansk, 80-211 Gdansk, Poland; (T.G.-J.); (M.C.)
| | - Patrycja Maszka
- Department of Biochemistry, Medical University of Gdansk, 80-211 Gdansk, Poland; (A.J.); (P.J.); (P.M.); (P.M.)
| | - Paulina Mierzejewska
- Department of Biochemistry, Medical University of Gdansk, 80-211 Gdansk, Poland; (A.J.); (P.J.); (P.M.); (P.M.)
| | - Ryszard T. Smolenski
- Department of Biochemistry, Medical University of Gdansk, 80-211 Gdansk, Poland; (A.J.); (P.J.); (P.M.); (P.M.)
| | - Ewa M. Slominska
- Department of Biochemistry, Medical University of Gdansk, 80-211 Gdansk, Poland; (A.J.); (P.J.); (P.M.); (P.M.)
| |
Collapse
|
2
|
Chen J, Lu H, Cao D, Sun J, Qi F, Liu X, Liu J, Yang J, Yu M, Zhou H, Cheng N, Wang J, Zhang Y, Peng P, Wang T, Shen K, Sun W. Urine and serum metabolomic analysis of endometrial cancer diagnosis and classification based on ultra-performance liquid chromatography mass spectrometry. Metabolomics 2024; 20:18. [PMID: 38281200 DOI: 10.1007/s11306-023-02085-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/19/2023] [Indexed: 01/30/2024]
Abstract
OBJECTIVE This study aimed to reveal the urinary and serum metabolic pattern of endometrial cancer (EC) and establish diagnostic models to identify EC from controls, high-risk from low-risk EC, and type II from type I EC. METHOD This study included 146 EC patients (comprising 79 low-risk and 67 high-risk patients, including 124 type I and 22 type II) and 59 controls. The serum and urine samples were analyzed using ultraperformance liquid chromatography mass spectrometry. Analysis was used to elucidate the distinct metabolites and altered metabolic pathways. Receiver operating characteristic (ROC) analyses were employed to discover and validate the potential biomarker models. RESULTS Serum and urine metabolomes displayed significant differences between EC and controls, with metabolites related to amino acid and nicotinamide metabolisms. The serum and urine panels distinguished these two groups with Area Under the Curve (AUC) of 0.821 and 0.902, respectively. The panel consisting of serum and urine metabolites demonstrated the best predictive ability (AUC = 0.953 and 0.976 in discovering and validation group). In comparing high-risk and low risk EC, differential metabolites were enriched in purine and glutamine metabolism. The AUC values for serum and urine panels were 0.818, and 0.843, respectively. The combined panel exhibited better predictive accuracy (0.881 in discovering group and 0.936 in external validation). In the comparison between type I and type II group, altered folic acid metabolism was identified. The serum, urine and combined panels discriminated these two groups with the AUC of 0.829, 0.913 and 0.922, respectively. CONCLUSION The combined urine and serum metabolome effectively revealed the metabolic patterns in EC patients, offering valuable diagnostic models for EC diagnosis and classification.
Collapse
Affiliation(s)
- Junyu Chen
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hezhen Lu
- China-Japan Union Hospital of Jilin University, Changchun, China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Jiameng Sun
- Core Facility of Instrument, School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Feng Qi
- Core Facility of Instrument, School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoyan Liu
- Core Facility of Instrument, School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Jiaqi Liu
- China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jiaxin Yang
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Mei Yu
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Huimei Zhou
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ninghai Cheng
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jinhui Wang
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ying Zhang
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Peng Peng
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Tao Wang
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Keng Shen
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Wei Sun
- China-Japan Union Hospital of Jilin University, Changchun, China.
| |
Collapse
|
3
|
Davalieva K, Kiprijanovska S, Ivanovski O, Trifunovski A, Saidi S, Dimovski A, Popov Z. Proteomics Profiling of Bladder Cancer Tissues from Early to Advanced Stages Reveals NNMT and GALK1 as Biomarkers for Early Detection and Prognosis of BCa. Int J Mol Sci 2023; 24:14938. [PMID: 37834386 PMCID: PMC10573217 DOI: 10.3390/ijms241914938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 10/15/2023] Open
Abstract
The high recurrence rate and invasive diagnostic and monitoring methods in bladder cancer (BCa) clinical management require the development of new non-invasive molecular tools for early detection, particularly for low-grade and low-stage BCa as well as for risk stratification. By using an in-solution digestion method and label-free data-independent LC-MS/MS coupled with ion mobility, we profiled the BCa tissues from initiation to advanced stages and confidently identified and quantified 1619 proteins (≥2 peptides). A statistically significant difference in abundance (Anova ≤ 0.05) showed 494 proteins. Significant correlation with stage with steady up or down with BCa stages showed 15 proteins. Testing of NNMT, GALK1, and HTRA1 in urine samples showed excellent diagnostic potential for NNMT and GALK1 with AUC of 1.000 (95% CI: 1.000-1.000; p < 0.0001) and 0.801 (95% CI: 0.655-0.947; p < 0.0001), respectively. NNMT and GALK1 also showed very good potential in discriminating non-invasive low-grade from invasive high-grade BCa with AUC of 0.763 (95% CI: 0.606-0.921; p = 0.001) and 0.801 (95% CI: 0.653-0.950; p < 0.0001), respectively. The combination of NNMT and GALK1 increased prognostic accuracy (AUC = 0.813). Our results broaden the range of potential novel candidates for non-invasive BCa diagnosis and prognosis.
Collapse
Affiliation(s)
- Katarina Davalieva
- Research Centre for Genetic Engineering and Biotechnology “Georgi D Efremov”, Macedonian Academy of Sciences and Arts, 1000 Skopje, North Macedonia; (S.K.); (A.D.)
| | - Sanja Kiprijanovska
- Research Centre for Genetic Engineering and Biotechnology “Georgi D Efremov”, Macedonian Academy of Sciences and Arts, 1000 Skopje, North Macedonia; (S.K.); (A.D.)
| | - Ognen Ivanovski
- Clinical Centre “Mother Theresa”, University Clinic for Urology, 1000 Skopje, North Macedonia; (O.I.); (A.T.); (S.S.)
| | - Aleksandar Trifunovski
- Clinical Centre “Mother Theresa”, University Clinic for Urology, 1000 Skopje, North Macedonia; (O.I.); (A.T.); (S.S.)
| | - Skender Saidi
- Clinical Centre “Mother Theresa”, University Clinic for Urology, 1000 Skopje, North Macedonia; (O.I.); (A.T.); (S.S.)
| | - Aleksandar Dimovski
- Research Centre for Genetic Engineering and Biotechnology “Georgi D Efremov”, Macedonian Academy of Sciences and Arts, 1000 Skopje, North Macedonia; (S.K.); (A.D.)
- Faculty of Pharmacy, University “St. Cyril and Methodius”, 1000 Skopje, North Macedonia
| | - Zivko Popov
- Clinical Hospital “Acibadem Sistina”, 1000 Skopje, North Macedonia;
- Medical Faculty, University “St. Cyril and Methodius”, 1000 Skopje, North Macedonia
- Macedonian Academy of Sciences and Arts, 1000 Skopje, North Macedonia
| |
Collapse
|
4
|
Ye Q, Xu G, Huang H, Pang S, Xie B, Feng B, Liang P, Qin Y, Li S, Luo Y, Xue C, Li W. Nicotinamide N-Methyl Transferase as a Predictive Marker of Tubular Fibrosis in CKD. Int J Gen Med 2023; 16:3331-3344. [PMID: 37576910 PMCID: PMC10417815 DOI: 10.2147/ijgm.s420706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/12/2023] [Indexed: 08/15/2023] Open
Abstract
Purpose Chronic kidney disease (CKD) progression is complex. There are not standardized methods for predicting the prognosis of CKD. Nicotinamide N-methyltransferase (NNMT) has been shown to be associated with renal fibrosis. This study aimed to validate NNMT as a prognostic biomarker of progressive CKD. Patients and Methods We explored the relationship between NNMT expression and CKD-related outcome variables using the NephroseqV5 and GEO databases. Additionally, a validation set of 37 CKD patients was enrolled to measure the correlation between NNMT expression levels and CKD outcomes. Furthermore, single-cell RNA sequencing data and the Human Protein Atlas were reanalyzed to investigate the expression specificity of NNMT in the kidney. Finally, to detect the status of NNMT expression with tubular fibrosis in vivo, we constructed a unilateral ureteral obstruction (UUO) mouse treated with an NNMT inhibitor. Results Analyzing the datasets showed that NNMT was expressed mainly in proximal tubule compartments. And patients with high NNMT expression levels had a significantly lower overall survival rate compared to those with low NNMT expression levels (P = 0.013). NNMT was independent of prognosis factors in the multivariate Cox regression model, and the AUCs for CKD progression at 1, 3, and 5 years were 0.849, 0.775, and 0.877, respectively. Pathway enrichment analysis indicated that NNMT regulates the biological processes of tubulointerstitial fibrosis (TIF). In the validation group, NNMT levels were significantly higher in the CKD group combined with interstitial fibrosis. In vivo, NNMT was a high expression in the UUO group, peaking at postoperative day 21. Treatment with an NNMT inhibitor improved renal tubular interstitial fibrosis, and expression levels of FN, α-SMA, VIM, and TGF-β1 were decreased compared with UUO (P < 0.05). Conclusion NNMT was expressed mainly in tubular renal compartments, and associated with CKD prognosis. It holds potential as a diagnostic biomarker for tubular fibrosis in CKD.
Collapse
Affiliation(s)
- Qinglin Ye
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Guiling Xu
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Haizhen Huang
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Shuting Pang
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Boji Xie
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Bingmei Feng
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Peng Liang
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Yijie Qin
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Siji Li
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Yin Luo
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Chao Xue
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| | - Wei Li
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, People’s Republic of China
| |
Collapse
|
5
|
Pozzi V, Campagna R, Sartini D, Emanuelli M. Nicotinamide N-Methyltransferase as Promising Tool for Management of Gastrointestinal Neoplasms. Biomolecules 2022; 12:biom12091173. [PMID: 36139012 PMCID: PMC9496617 DOI: 10.3390/biom12091173] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/21/2022] [Accepted: 08/23/2022] [Indexed: 12/24/2022] Open
Abstract
Gastrointestinal (GI) neoplasms include esophageal, gastric, colorectal, hepatic, and pancreatic cancers. They are characterized by asymptomatic behavior, being responsible for diagnostic delay. Substantial refractoriness to chemo- and radiotherapy, exhibited by late-stage tumors, contribute to determine poor patient outcome. Therefore, it is of outmost importance to identify new molecular targets for the development of effective therapeutic strategies. In this study, we focused on the enzyme nicotinamide N-methyltransferase (NNMT), which catalyzes the N-methylation reaction of nicotinamide and whose overexpression has been reported in numerous neoplasms, including GI cancers. The aim of this review was to report data illustrating NNMT involvement in these tumors, highlighting its contribution to tumor cell phenotype. Cited works clearly demonstrate the interesting potential use of enzyme level determination for both diagnostic and prognostic purposes. NNMT was also found to positively affect cell viability, proliferation, migration, and invasiveness, contributing to sustain in vitro and in vivo tumor growth and metastatic spread. Moreover, enzyme upregulation featuring tumor cells was significantly associated with enhancement of resistance to treatment with chemotherapeutic drugs. Taken together, these results strongly suggest the possibility to target NNMT for setup of molecular-based strategies to effectively treat GI cancers.
Collapse
Affiliation(s)
- Valentina Pozzi
- Department of Clinical Sciences, Polytechnic University of Marche, 60020 Ancona, Italy
| | - Roberto Campagna
- Department of Clinical Sciences, Polytechnic University of Marche, 60020 Ancona, Italy
| | - Davide Sartini
- Department of Clinical Sciences, Polytechnic University of Marche, 60020 Ancona, Italy
- Correspondence: ; Tel.: +39-071-2204673
| | - Monica Emanuelli
- Department of Clinical Sciences, Polytechnic University of Marche, 60020 Ancona, Italy
- New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, 60131 Ancona, Italy
| |
Collapse
|
6
|
Nicotinamide N-Methyltransferase in Head and Neck Tumors: A Comprehensive Review. Biomolecules 2021; 11:biom11111594. [PMID: 34827592 PMCID: PMC8615955 DOI: 10.3390/biom11111594] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/19/2021] [Accepted: 10/26/2021] [Indexed: 12/31/2022] Open
Abstract
The head and neck tumors (HNT) are a heterogeneous group of diseases ranging from benign to malignant lesions, with distinctive molecular and clinical behaviors. Several studies have highlighted the presence of an altered metabolic phenotype in HNT, such as the upregulation of nicotinamide N-methyltransferase (NNMT). However, its biological effects have not been completely disclosed and the role of NNMT in cancer cell metabolism remains unclear. Therefore, this comprehensive review aims to evaluate the available literature regarding the biological, diagnostic, and prognostic role of NNMT in HNT. NNMT was shown to be significantly overexpressed in all of the evaluated HNT types. Moreover, its upregulation has been correlated with cancer cell migration and adverse clinical outcomes, such as high-pathological stage, lymph node metastasis, and locoregional recurrences. However, in oral squamous cell carcinoma (OSCC) these associations are still debated, and several studies have failed to demonstrate the prognostic significance of NNMT. The shRNA-mediated gene silencing efficiently suppressed the NNMT gene expression and exhibited a clear inhibitory effect on cell proliferation, promoting the expression of apoptosis-related proteins and modulating the cell cycle. NNMT could represent a new molecular biomarker and a new target of molecular-based therapy, although further studies on larger patient cohorts are needed to explore its biological role in HNT.
Collapse
|
7
|
Tatekawa S, Ofusa K, Chijimatsu R, Vecchione A, Tamari K, Ogawa K, Ishii H. Methylosystem for Cancer Sieging Strategy. Cancers (Basel) 2021; 13:5088. [PMID: 34680237 PMCID: PMC8534198 DOI: 10.3390/cancers13205088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/02/2021] [Accepted: 10/07/2021] [Indexed: 12/14/2022] Open
Abstract
As cancer is a genetic disease, methylation defines a biologically malignant phenotype of cancer in the association of one-carbon metabolism-dependent S-adenosylmethionine (SAM) as a methyl donor in each cell. Methylated substances are involved in intracellular metabolism, but via intercellular communication, some of these can also be secreted to affect other substances. Although metabolic analysis at the single-cell level remains challenging, studying the "methylosystem" (i.e., the intercellular and intracellular communications of upstream regulatory factors and/or downstream effectors that affect the epigenetic mechanism involving the transfer of a methyl group from SAM onto the specific positions of nucleotides or other metabolites in the tumor microenvironment) and tracking these metabolic products are important research tasks for understanding spatial heterogeneity. Here, we discuss and highlight the involvement of RNA and nicotinamide, recently emerged targets, in SAM-producing one-carbon metabolism in cancer cells, cancer-associated fibroblasts, and immune cells. Their significance and implications will contribute to the discovery of efficient methods for the diagnosis of and therapeutic approaches to human cancer.
Collapse
Affiliation(s)
- Shotaro Tatekawa
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Yamadaoka 2-2, Osaka 565-0871, Japan; (S.T.); (K.T.)
| | - Ken Ofusa
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Yamadaoka 2-2, Osaka 565-0871, Japan; (K.O.); (R.C.)
- Food and Life-Science Laboratory, Prophoenix Division, Idea Consultants, Inc., Osaka 559-8519, Japan
| | - Ryota Chijimatsu
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Yamadaoka 2-2, Osaka 565-0871, Japan; (K.O.); (R.C.)
| | - Andrea Vecchione
- Department of Clinical and Molecular Medicine, University of Rome “Sapienza”, Santo Andrea Hospital, Via di Grottarossa, 1035-00189 Rome, Italy;
| | - Keisuke Tamari
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Yamadaoka 2-2, Osaka 565-0871, Japan; (S.T.); (K.T.)
| | - Kazuhiko Ogawa
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Yamadaoka 2-2, Osaka 565-0871, Japan; (S.T.); (K.T.)
| | - Hideshi Ishii
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Yamadaoka 2-2, Osaka 565-0871, Japan; (K.O.); (R.C.)
| |
Collapse
|
8
|
Yang J, Tong Q, Zhang Y, Yuan S, Gao Y, Deng K, Wang Y, Lu J, Xie X, Zhang Z, Zhang J. Overexpression of Nicotinamide N-methyltransferase mainly covers stroma of colorectal cancer and correlates with unfavorable survival by its product 1-MNA. J Cancer 2021; 12:6170-6181. [PMID: 34539890 PMCID: PMC8425209 DOI: 10.7150/jca.56419] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 08/14/2021] [Indexed: 01/02/2023] Open
Abstract
Background: Accumulating evidence indicates that Nicotinamide N-methyltransferase (NNMT) is abnormally expressed in tumor tissues of several cancers including colorectal cancer (CRC) and associated with cancer progression. However, the distribution characteristics and the clinical value of each part of NNMT expression in CRC are still not fully understood. The purpose of this study is to determine the distribution of NNMT expression and its association with survival in CRC. Methods: By using the cancer genome atlas (TCGA) and clinical proteomic tumor analysis consortium (CPTAC), we firstly analyzed the difference of gene and protein levels of NNMT between CRC and normal colorectal tissue. Then, NNMT protein expressions were detected in 18 intraepithelial neoplastic samples and 177 CRC tumor samples through immunohistochemistry in our study cohort. Furthermore, the relationship between NNMT expression and clinicopathological characteristics, overall survival (OS) and disease-free survival (DFS) of CRC patients were analyzed by Pearson χ2 test and log-rank test, respectively, in public datasets and our study cohort. Lastly, the function of NNMT and its product 1-methyl-nicotinamide (1-MNA) on migration and invasion in colorectal cancer cells was analyzed by wound healing assay and transwell assay. Results: We determined that higher NNMT expression in CRC tissues than normal tissues in both gene and protein level in TCGA and CPTAC datasets (all p < 0.05). In addition, the strong relationships of NNMT expression with stromal cells were found in the TCGA cohort. Fortunately, our cohort could validate that the expression of NNMT in tumor stroma cell was significantly higher than that in tumor cell (p < 0.0001), and both of them were significantly higher than that in adjacent normal tissue (ANT) (p < 0.0001 and p < 0.0001, respectively). Furthermore, the positive NNMT expression in tumor cell and stromal cell were associated with series of unfavorable clinical characteristics, including advanced TNM stage, lymph node metastasis, distant metastasis (all p < 0.05). Also, higher NNMT was associated with unfavorable survival both in our study and public datasets, including TCGA and two Gene Expression Omnibus (GEO) datasets (GSE33113 and GSE17538). Moreover, the functional experiments showed that stromal cells with high NNMT expression can secret 1-MAN to promote migration and invasion of CRC cells in vitro. Conclusions: In CRC, NNMT is overexpressed in tumor cells and stroma cells, and then mainly expressed in tumor stroma cells. Overexpression of NNMT in tumor cell and stroma cell both are associated with metastasis and unfavorable survival. Besides, stromal cells with high NNMT expression secrets 1-MAN to promote migration and invasion of CRC cells. Therefore, NNMT may be a potential prognostic indicator in CRC patients.
Collapse
Affiliation(s)
- Jun Yang
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Ningbo Diagnostic Pathology Center, 685 North Huancheng Road, Ningbo 315010, Zhejiang, People's Republic of China.,Department of Pathology, Ningbo Medical Center Lihuili Hospital, 57 Xingning Road, Ningbo 315040, Zhejiang, People's Republic of China
| | - Qingchao Tong
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China
| | - Ying Zhang
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China
| | - Shijin Yuan
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China
| | - Yuzhen Gao
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China
| | - Ke Deng
- Department of colorectal surgery, Ningbo Medical Center Lihuili Hospital, 57 Xingning Road, Ningbo 315040, Zhejiang, People's Republic of China
| | - Yanzhong Wang
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China
| | - Jie Lu
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China
| | - Xinyou Xie
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China
| | - Zhe Zhang
- Ningbo Diagnostic Pathology Center, 685 North Huancheng Road, Ningbo 315010, Zhejiang, People's Republic of China
| | - Jun Zhang
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China.,Key Laboratory of Biotherapy of Zhejiang Province, 3 East Qingchun Road, Hangzhou 310016, Zhejiang, People's Republic of China
| |
Collapse
|
9
|
The Utility of Nicotinamide N-Methyltransferase as a Potential Biomarker to Predict the Oncological Outcomes for Urological Cancers: An Update. Biomolecules 2021; 11:biom11081214. [PMID: 34439880 PMCID: PMC8393883 DOI: 10.3390/biom11081214] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 01/03/2023] Open
Abstract
Nicotinamide N-methyltransferase (NNMT) catalyzes the N-methylation reaction of nicotinamide, using S-adenosyl-L-methionine as the methyl donor. Enzyme overexpression has been described in many non-neoplastic diseases, as well as in a wide range of solid malignancies. This review aims to report and discuss evidence available in scientific literature, dealing with NNMT expression and the potential involvement in main urologic neoplasms, namely, renal, bladder and prostate cancers. Data illustrated in the cited studies clearly demonstrated NNMT upregulation (pathological vs. normal tissue) in association with these aforementioned tumors. In addition to this, enzyme levels were also found to correlate with key prognostic parameters and patient survival. Interestingly, NNMT overexpression also emerged in peripheral body fluids, such as blood and urine, thus leading to candidate the enzyme as promising biomarker for the early and non-invasive detection of these cancers. Examined results undoubtedly showed NNMT as having the capacity to promote cell proliferation, migration and invasiveness, as well as its potential participation in fundamental events highlighting cancer progression, metastasis and resistance to chemo- and radiotherapy. In the light of this evidence, it is reasonable to attribute to NNMT a promising role as a potential biomarker for the diagnosis and prognosis of urologic neoplasms, as well as a molecular target for effective anti-cancer treatment.
Collapse
|
10
|
Luna-Velez MV, Dijkstra JJ, Heuschkel MA, Smit FP, van de Zande G, Smeets D, Sedelaar JPM, Vermeulen M, Verhaegh GW, Schalken JA. Androgen receptor signalling confers clonogenic and migratory advantages in urothelial cell carcinoma of the bladder. Mol Oncol 2021; 15:1882-1900. [PMID: 33797847 PMCID: PMC8253097 DOI: 10.1002/1878-0261.12957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/31/2021] [Indexed: 12/24/2022] Open
Abstract
Bladder urothelial cell carcinoma (UCC) incidence is about three times higher in men compared with women. There are several indications for the involvement of hormonal factors in the aetiology of UCC. Here, we provide evidence of androgen signalling in UCC progression. Microarray and qPCR analysis revealed that the androgen receptor (AR) mRNA level is upregulated in a subset of UCC cases. In an AR‐positive UCC‐derived cell line model, UM‐UC‐3‐AR, androgen treatment increased clonogenic capacity inducing the formation of big stem cell‐like holoclones, while AR knockdown or treatment with the AR antagonist enzalutamide abrogated this clonogenic advantage. Additionally, blockage of AR signalling reduced the cell migration potential of androgen‐stimulated UM‐UC‐3‐AR cells. These phenotypic changes were accompanied by a rewiring of the transcriptome with almost 300 genes being differentially regulated by androgens, some of which correlated with AR expression in UCC patients in two independent data sets. Our results demonstrate that AR signals in UCC favouring the development of an aggressive phenotype and highlights its potential as a therapeutic target for bladder cancer.
Collapse
Affiliation(s)
- Maria V Luna-Velez
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands.,Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University, Nijmegen, the Netherlands
| | - Jelmer J Dijkstra
- Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University, Nijmegen, the Netherlands
| | - Marina A Heuschkel
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | | | - Guillaume van de Zande
- Department of Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Dominique Smeets
- Department of Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - J P Michiel Sedelaar
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Michiel Vermeulen
- Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University, Nijmegen, the Netherlands
| | - Gerald W Verhaegh
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jack A Schalken
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| |
Collapse
|
11
|
Campagna R, Salvolini E, Pompei V, Pozzi V, Salvucci A, Molinelli E, Brisigotti V, Sartini D, Campanati A, Offidani A, Emanuelli M. Nicotinamide N-methyltransferase gene silencing enhances chemosensitivity of melanoma cell lines. Pigment Cell Melanoma Res 2021; 34:1039-1048. [PMID: 34018676 DOI: 10.1111/pcmr.12993] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 11/28/2022]
Abstract
Melanoma accounts for less than 5% of all cutaneous neoplasms but is responsible for the greater part of skin cancer-related deaths. Therefore, the identification of molecules that could serve as the therapeutic target is urgent. This study focused on the enzyme nicotinamide N-methyltransferase (NNMT). The effect of NNMT knockdown on cell proliferation and migration of A375 melanoma cells was evaluated by MTT and wound healing assays, respectively. Viability of A375 cells downregulating NNMT was also explored under treatment with dacarbazine, a chemotherapeutic drug approved for advanced melanoma treatment. The impact of enzyme knockdown on cell proliferation and chemosensitivity was also investigated in WM-115 melanoma cells. Results obtained demonstrated that NNMT silencing led to a significant reduction of cell proliferation and migration of A375 cells. Moreover, enzyme downregulation was associated with an increase of melanoma cells sensitivity to treatment with dacarbazine. Analogous effects induced by enzyme knockdown on cell proliferation and chemosensitivity were also found in the WM-115 cell line. Our data seem to demonstrate that NNMT could represent a promising molecular target for the effective treatment of this form of skin cancer.
Collapse
Affiliation(s)
- Roberto Campagna
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Eleonora Salvolini
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Veronica Pompei
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Valentina Pozzi
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Alessia Salvucci
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Elisa Molinelli
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Valerio Brisigotti
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Davide Sartini
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Anna Campanati
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Annamaria Offidani
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Monica Emanuelli
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.,New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Ancona, Italy
| |
Collapse
|
12
|
Kocinaj A, Chaudhury T, Uddin MS, Junaid RR, Ramsden DB, Hondhamuni G, Klamt F, Parsons L, Parsons RB. High Expression of Nicotinamide N-Methyltransferase in Patients with Sporadic Alzheimer's Disease. Mol Neurobiol 2021; 58:1769-1781. [PMID: 33387303 PMCID: PMC7932959 DOI: 10.1007/s12035-020-02259-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/10/2020] [Indexed: 01/11/2023]
Abstract
We have previously shown that the expression of nicotinamide N-methyltransferase (NNMT) is significantly increased in the brains of patients who have died of Parkinson's disease (PD). In this study, we have compared the expression of NNMT in post-mortem medial temporal lobe, hippocampus and cerebellum of 10 Alzheimer's disease (AD) and 9 non-disease control subjects using a combination of quantitative Western blotting, immunohistochemistry and dual-label confocal microscopy coupled with quantitative analysis of colocalisation. NNMT was detected as a single protein of 29 kDa in both AD and non-disease control brains, which was significantly increased in AD medial temporal lobe compared to non-disease controls (7.5-fold, P < 0.026). There was no significant difference in expression in the cerebellum (P = 0.91). NNMT expression in AD medial temporal lobe and hippocampus was present in cholinergic neurones with no glial localisation. Cell-type expression was identical in both non-disease control and AD tissues. These results are the first to show, in a proof-of-concept study using a small patient cohort, that NNMT protein expression is increased in the AD brain and is present in neurones which degenerate in AD. These results suggest that the elevation of NNMT may be a common feature of many neurodegenerative diseases. Confirmation of this overexpression using a larger AD patient cohort will drive the future development of NNMT-targetting therapeutics which may slow or stop the disease pathogenesis, in contrast to current therapies which solely address AD symptoms.
Collapse
Affiliation(s)
- Altin Kocinaj
- Institute of Pharmaceutical Science, King’s College London, 150 Stamford Street, London, SE1 9NH UK
| | - Tabassum Chaudhury
- Institute of Pharmaceutical Science, King’s College London, 150 Stamford Street, London, SE1 9NH UK
| | - Mohammed S. Uddin
- Institute of Pharmaceutical Science, King’s College London, 150 Stamford Street, London, SE1 9NH UK
| | - Rashad R. Junaid
- Institute of Pharmaceutical Science, King’s College London, 150 Stamford Street, London, SE1 9NH UK
| | - David B. Ramsden
- Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, Birmingham, B15 2TH UK
| | - Geshanthi Hondhamuni
- Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, University College London, 1 Wakefield Street, London, WC1N 1PJ UK
| | - Fábio Klamt
- Laboratory of Cellular Biochemistry, Universidade Federal do Rio Grande do Sul, 2600 Ramiro Barcelos St., Porto Alegre, RS 90035-003 Brazil
- National Institute of Science and Technology – Translational Medicine (INCT-TM), Porto Alegre, Brazil
| | - Linda Parsons
- Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, University College London, 1 Wakefield Street, London, WC1N 1PJ UK
| | - Richard B. Parsons
- Institute of Pharmaceutical Science, King’s College London, 150 Stamford Street, London, SE1 9NH UK
| |
Collapse
|
13
|
Roberti A, Fernández AF, Fraga MF. Nicotinamide N-methyltransferase: At the crossroads between cellular metabolism and epigenetic regulation. Mol Metab 2021; 45:101165. [PMID: 33453420 PMCID: PMC7868988 DOI: 10.1016/j.molmet.2021.101165] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/30/2020] [Accepted: 01/09/2021] [Indexed: 01/01/2023] Open
Abstract
Background The abundance of energy metabolites is intimately interconnected with the activity of chromatin-modifying enzymes in order to guarantee the finely tuned modulation of gene expression in response to cellular energetic status. Metabolism-induced epigenetic gene regulation is a key molecular axis for the maintenance of cellular homeostasis, and its deregulation is associated with several pathological conditions. Nicotinamide N-methyltransferase (NNMT) is a metabolic enzyme that catalyzes the methylation of nicotinamide (NAM) using the universal methyl donor S-adenosyl methionine (SAM), directly linking one-carbon metabolism with a cell's methylation balance and nicotinamide adenine dinucleotide (NAD+) levels. NNMT expression and activity are regulated in a tissue-specific-manner, and the protein can act either physiologically or pathologically depending on its distribution. While NNMT exerts a beneficial effect by regulating lipid parameters in the liver, its expression in adipose tissue correlates with obesity and insulin resistance. NNMT upregulation has been observed in a variety of cancers, and increased NNMT expression has been associated with tumor progression, metastasis and worse clinical outcomes. Accordingly, NNMT represents an appealing druggable target for metabolic disorders as well as oncological and other diseases in which the protein is improperly activated. Scope of review This review examines emerging findings concerning the complex NNMT regulatory network and the role of NNMT in both NAD metabolism and cell methylation balance. We extensively describe recent findings concerning the physiological and pathological regulation of NNMT with a specific focus on the function of NNMT in obesity, insulin resistance and other associated metabolic disorders along with its well-accepted role as a cancer-associated metabolic enzyme. Advances in strategies targeting NNMT pathways are also reported, together with current limitations of NNMT inhibitor drugs in clinical use. Major conclusions NNMT is emerging as a key point of intersection between cellular metabolism and epigenetic gene regulation, and growing evidence supports its central role in several pathologies. The use of molecules that target NNMT represents a current pharmaceutical challenge for the treatment of several metabolic-related disease as well as in cancer.
Collapse
Affiliation(s)
- Annalisa Roberti
- Cancer Epigenetics and Nanomedicine Laboratory, Nanomaterials and Nanotechnology Research Center (CINN-CSIC), El Entrego, Spain; Health Research Institute of Asturias (ISPA), Oviedo, Spain; Institute of Oncology of Asturias (IUOPA) and Department of Organisms and Systems Biology (B.O.S.), University of Oviedo, Oviedo, Spain; Rare Diseases CIBER (CIBERER) of the Carlos III Health Institute (ISCIII), Oviedo, Spain
| | - Agustín F Fernández
- Cancer Epigenetics and Nanomedicine Laboratory, Nanomaterials and Nanotechnology Research Center (CINN-CSIC), El Entrego, Spain; Health Research Institute of Asturias (ISPA), Oviedo, Spain; Institute of Oncology of Asturias (IUOPA) and Department of Organisms and Systems Biology (B.O.S.), University of Oviedo, Oviedo, Spain; Rare Diseases CIBER (CIBERER) of the Carlos III Health Institute (ISCIII), Oviedo, Spain
| | - Mario F Fraga
- Cancer Epigenetics and Nanomedicine Laboratory, Nanomaterials and Nanotechnology Research Center (CINN-CSIC), El Entrego, Spain; Health Research Institute of Asturias (ISPA), Oviedo, Spain; Institute of Oncology of Asturias (IUOPA) and Department of Organisms and Systems Biology (B.O.S.), University of Oviedo, Oviedo, Spain; Rare Diseases CIBER (CIBERER) of the Carlos III Health Institute (ISCIII), Oviedo, Spain.
| |
Collapse
|
14
|
Wu M, Hu W, Wang G, Yao Y, Yu XF. Nicotinamide N-Methyltransferase Is a Prognostic Biomarker and Correlated With Immune Infiltrates in Gastric Cancer. Front Genet 2020; 11:580299. [PMID: 33193702 PMCID: PMC7655872 DOI: 10.3389/fgene.2020.580299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/10/2020] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer (GC) is the third most common cause of cancer-related death in the word. Immunotherapy is a promising treatment of cancer. However, it is unclear which GC subpopulation would benefit most from immunotherapy and it is necessary to develop effective biomarkers for predicting immunotherapy response. Nicotinamide N-methyltransferase (NNMT) is a metabolic regulator of cancer-associated fibroblast (CAF) differentiation and cancer progression. In this study, we explored the correlations of NNMT to tumor-infiltrating immune cells (TIICs) and immune marker sets in The Cancer Genome Atlas Stomach Adenocarcinoma STAD (TCGA-STAD). Subsequently, we screened the NNMT correlated genes and performed the enrichment analysis of these genes. We eventually predicted the 19 most potential small-molecule drugs using the connectivity map (CMap) and Comparative Toxicogenomics Database (CTD). Also, nadolol, tranexamic acid, felbinac and dapsone were considered the four most promising drugs for GC. In summary, NNMT can be used as a prognostic biomarker that reflect immune infiltration level and a novel therapeutic target in GC.
Collapse
Affiliation(s)
- Miaowei Wu
- Cancer Institute, Second Affiliated Hospital, Cancer Institute, Zhejiang University School of Medicine, Hangzhou, China
| | - Weilei Hu
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Guosheng Wang
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Yihan Yao
- Department of Surgical Oncology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao-Fang Yu
- Cancer Institute, Second Affiliated Hospital, Cancer Institute, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
15
|
Xie N, Zhang L, Gao W, Huang C, Huber PE, Zhou X, Li C, Shen G, Zou B. NAD + metabolism: pathophysiologic mechanisms and therapeutic potential. Signal Transduct Target Ther 2020; 5:227. [PMID: 33028824 PMCID: PMC7539288 DOI: 10.1038/s41392-020-00311-7] [Citation(s) in RCA: 345] [Impact Index Per Article: 86.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/04/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023] Open
Abstract
Nicotinamide adenine dinucleotide (NAD+) and its metabolites function as critical regulators to maintain physiologic processes, enabling the plastic cells to adapt to environmental changes including nutrient perturbation, genotoxic factors, circadian disorder, infection, inflammation and xenobiotics. These effects are mainly achieved by the driving effect of NAD+ on metabolic pathways as enzyme cofactors transferring hydrogen in oxidation-reduction reactions. Besides, multiple NAD+-dependent enzymes are involved in physiology either by post-synthesis chemical modification of DNA, RNA and proteins, or releasing second messenger cyclic ADP-ribose (cADPR) and NAADP+. Prolonged disequilibrium of NAD+ metabolism disturbs the physiological functions, resulting in diseases including metabolic diseases, cancer, aging and neurodegeneration disorder. In this review, we summarize recent advances in our understanding of the molecular mechanisms of NAD+-regulated physiological responses to stresses, the contribution of NAD+ deficiency to various diseases via manipulating cellular communication networks and the potential new avenues for therapeutic intervention.
Collapse
Affiliation(s)
- Na Xie
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China
| | - Lu Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China
| | - Wei Gao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Peter Ernst Huber
- CCU Molecular and Radiation Oncology, German Cancer Research Center; Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Xiaobo Zhou
- First Department of Medicine, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Changlong Li
- West China School of Basic Medical Sciences & Forensic Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Guobo Shen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China.
| | - Bingwen Zou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China.
- CCU Molecular and Radiation Oncology, German Cancer Research Center; Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
- Department of Thoracic Oncology and Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China.
| |
Collapse
|
16
|
Mascitti M, Sartini D, Togni L, Pozzi V, Rubini C, Santarelli A, Emanuelli M. Differential expression of nicotinamide N-methyltransferase in primary and recurrent ameloblastomas and odontogenic keratocysts. Eur J Clin Invest 2020; 50:e13220. [PMID: 32129473 DOI: 10.1111/eci.13220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 01/02/2020] [Accepted: 03/01/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Odontogenic tumours are a group of rare heterogeneous diseases that range from hamartomatous tissue proliferations to benign and malignant neoplasms. Recurrences can occur after 10 years, so long-term clinical and radiological follow-up is required. The study of the molecular mechanisms involved in the development of these lesions is necessary to identify new prognostic markers. In this study, we evaluate the possible role of nicotinamide N-methyltransferase (NNMT) in ameloblastomas (AM) and odontogenic keratocysts (OKC). MATERIALS AND METHODS A total of 105 surgical specimens of primary and recurrent lesions were obtained from 55 patients (25 AM, 30 OKC). In particular, 50 AMs (25 primary, 25 recurrences) and 55 OKCs (30 primary, 25 recurrences) were retrieved. We carried out immunohistochemical analyses to evaluate the cytoplasmic expression of NNMT, measuring the percentage of positive cells and the value of NNMT expression intensity. RESULTS NNMT expression was significantly higher in recurrent than primary AMs (P = .0430). This result was confirmed by staining intensity, showing more cases with moderate/intense staining in recurrent AMs (P = .0470). NNMT expression was significantly lower in recurrent than primary OKC (P = .0014). Staining intensity showed more cases with moderate/intense staining in primary OKCs (P = .0276). CONCLUSIONS This report is the first to evaluate NNMT expression in odontogenic lesions and to demonstrate a differential expression in recurrent AMs and OKCs, suggesting that there is potential for use of NNMT as prognostic marker.
Collapse
Affiliation(s)
- Marco Mascitti
- Department of Clinical Specialistic and Dental Sciences, Marche Polytechnic University, Ancona, Italy
| | - Davide Sartini
- Department of Clinical Specialistic and Dental Sciences, Marche Polytechnic University, Ancona, Italy
| | - Lucrezia Togni
- Department of Clinical Specialistic and Dental Sciences, Marche Polytechnic University, Ancona, Italy
| | - Valentina Pozzi
- New York-Marche Structural Biology Center (NY-MaSBiC), Marche Polytechnic University, Ancona, Italy
| | - Corrado Rubini
- Department of Biomedical Sciences and Public Health, Marche Polytechnic University, Ancona, Italy
| | - Andrea Santarelli
- Department of Clinical Specialistic and Dental Sciences, Marche Polytechnic University, Ancona, Italy.,Dentistry Clinic, National Institute of Health and Science of Aging, IRCCS INRCA, Ancona, Italy
| | - Monica Emanuelli
- Department of Clinical Specialistic and Dental Sciences, Marche Polytechnic University, Ancona, Italy.,New York-Marche Structural Biology Center (NY-MaSBiC), Marche Polytechnic University, Ancona, Italy
| |
Collapse
|
17
|
Pozzi V, Salvolini E, Lucarini G, Salvucci A, Campagna R, Rubini C, Sartini D, Emanuelli M. Cancer stem cell enrichment is associated with enhancement of nicotinamide N-methyltransferase expression. IUBMB Life 2020; 72:1415-1425. [PMID: 32150326 DOI: 10.1002/iub.2265] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 12/12/2022]
Abstract
The cancer stem cell theory states that a subset of tumor cells, termed cancer stem cells (CSCs), has the ability to self-renew and differentiate within the tumors. According to this theory, CSCs would be mainly responsible for tumor initiation, progression, resistance to therapy, recurrence, and metastasis. In this study, a culture system was setup to enrich CSCs from bladder cancer (T24), lung cancer (A549), colorectal cancer (CaCo-2), and osteosarcoma (MG63) cell lines, through sphere formation. Magnetic-activated cell sorting was also used to further increase CSC enrichment. Subsequently, molecular characterization of CSC-enriched cell populations and parental cells was carried out, by exploring the expression levels of stem markers and the enzyme nicotinamide N-methyltransferase (NNMT). Results obtained showed a significant upregulation of stem cell markers in CSC-enriched populations, obtained upon sphere formation, compared with parental counterparts. Moreover, NNMT expression levels were markedly increased in samples enriched with CSCs with respect to control cells. Considering the fundamental role played by CSCs in carcinogenesis, reported data strengthen the hypothesis that sustains a pivotal role of NNMT in cancer growth and metastasis. In addition, these findings could represent an important achievement for the development of new and effective anticancer therapies, based on CSC-associated targets.
Collapse
Affiliation(s)
- Valentina Pozzi
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.,New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Ancona, Italy
| | - Eleonora Salvolini
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Guendalina Lucarini
- Department of Clinical and Molecular Sciences, University of Marche, Ancona, Italy
| | - Alessia Salvucci
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Roberto Campagna
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Corrado Rubini
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Davide Sartini
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Monica Emanuelli
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.,New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Ancona, Italy
| |
Collapse
|
18
|
Song M, Li Y, Miao M, Zhang F, Yuan H, Cao F, Chang W, Shi H, Song C. High stromal nicotinamide N-methyltransferase (NNMT) indicates poor prognosis in colorectal cancer. Cancer Med 2020; 9:2030-2038. [PMID: 31989785 PMCID: PMC7064029 DOI: 10.1002/cam4.2890] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/24/2019] [Accepted: 01/16/2020] [Indexed: 12/12/2022] Open
Abstract
PURPOSE Nicotinamide n-methyltransferase (NNMT) has good biochemical activity and epigenetic regulation, and has been reported as a major metabolic regulator of cancer. The goal of this study was to investigate the significance of stromal NNMT expression in colorectal cancer (CRC). PATIENTS AND METHODS Stromal expression of NNMT in primary CRC, metastasis CRC, and their non-cancerous tissues from 1088 CRC patients was examined by immunohistochemistry. The associations between stromal NNMT expression and survival outcomes in 967 patients with stage I-III CRC were further evaluated with Kaplan-Meier curve and Cox model analyses. RESULTS NNMT expression was mainly sourced from stromal compartments and also elevated in CRC. Patients with high stromal NNMT (IHC-score ≥ 106) have a worse survival than those patients with low stromal NNMT. In multiple Cox analyses, high expression of stromal NNMT remained as an independent risk factor in CRC for disease-free survival with a hazard ratio (HR) of 1.415 (95% confidence interval [CI], 1.015-1.972) and disease-specific survival with a HR of 5.004 (95% CI, 2.301-10.883). In addition, high stromal NNMT expression in CRC also indicates the poor survival outcomes in patients with early stage CRC (stage I and II) and in patients who undergo chemotherapy. CONCLUSION NNMT is mainly located in CRC stromal compartment. High stromal NNMT expression predicts an unfavorable postoperative prognosis.
Collapse
Affiliation(s)
- Mengmeng Song
- Department of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Ye Li
- Department of Digestive Endoscopy, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mingyong Miao
- Department of Biochemistry, Second Military Medical University, Shanghai, China
| | - Fan Zhang
- Department of Environmental Health, Second Military Medical University, Shanghai, China
| | - Hao Yuan
- Department of Environmental Health, Second Military Medical University, Shanghai, China
| | - Fuao Cao
- Department of Colorectal Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Wenjun Chang
- Department of Environmental Health, Second Military Medical University, Shanghai, China
| | - Hanping Shi
- Department of Gastrointestinal Surgery/Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Chunhua Song
- Department of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| |
Collapse
|
19
|
Mistry RJ, Klamt F, Ramsden DB, Parsons RB. Nicotinamide N-methyltransferase expression in SH-SY5Y human neuroblastoma cells decreases oxidative stress. J Biochem Mol Toxicol 2020; 34:e22439. [PMID: 31909875 DOI: 10.1002/jbt.22439] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 12/10/2019] [Indexed: 11/11/2022]
Abstract
Nicotinamide N-methyltransferase (NNMT) plays a central role in cellular metabolism, regulating pathways including epigenetic regulation, cell signalling, and energy production. Our previous studies have shown that the expression of NNMT in the human neuroblastoma cell line SH-SY5Y increased complex I activity and subsequent ATP synthesis. This increase in ATP synthesis was lower than the increase in complex I activity, suggesting uncoupling of the mitochondrial respiratory chain. We, therefore, hypothesised that pathways that reduce oxidative stress are also increased in NNMT-expressing SH-Y5Y cells. The expression of uncoupling protein-2 messenger RNA and protein were significantly increased in NNMT-expressing cells (57% ± 5.2% and 20.1% ± 1.5%, respectively; P = .001 for both). Total GSH (22 ± 0.3 vs 35.6 ± 1.1 nmol/mg protein), free GSH (21.9 ± 0.2 vs 33.5 ± 1 nmol/mg protein), and GSSG (0.6 ± 0.02 vs 1 ± 0.05 nmol/mg protein; P = .001 for all) concentrations were significantly increased in NNMT-expressing cells, whereas the GSH:GSSG ratio was decreased (39.4 ± 1.8 vs 32.3 ± 2.5; P = .02). Finally, reactive oxygen species (ROS) content was decreased in NNMT-expressing cells (0.3 ± 0.08 vs 0.12 ± 0.03; P = .039), as was the concentration of 8-isoprostane F2α (200 ± 11.5 vs 45 ± 2.6 pg/mg protein; P = .0012). Taken together, these results suggest that NNMT expression reduced ROS generation and subsequent lipid peroxidation by uncoupling the mitochondrial membrane potential and increasing GSH buffering capacity, most likely to compensate for increased complex I activity and ATP production.
Collapse
Affiliation(s)
- Rakhee J Mistry
- Institute of Pharmaceutical Science, King's College London, London, UK
| | - Fábio Klamt
- Departmento de Bioqúimica, Instituto de Ciêcas Básicas de Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
| | - David B Ramsden
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Richard B Parsons
- Institute of Pharmaceutical Science, King's College London, London, UK
| |
Collapse
|
20
|
Pompei V, Salvolini E, Rubini C, Lucarini G, Molinelli E, Brisigotti V, Pozzi V, Sartini D, Campanati A, Offidani A, Emanuelli M. Nicotinamide N-methyltransferase in nonmelanoma skin cancers. Eur J Clin Invest 2019; 49:e13175. [PMID: 31571214 DOI: 10.1111/eci.13175] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/17/2019] [Accepted: 09/28/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Squamous cell carcinoma (SCC) and basal cell carcinoma (BCC) represent the most common forms of nonmelanoma skin cancers (NMSCs). Although successful treatment of these neoplasms is based on surgical excision, an increasing number of BCCs relapses and many SCCs display high rates of recurrence and metastasis. Nicotinamide N-methyltransferase (NNMT) is a cytosolic enzyme, which was found to be upregulated in different solid tumours. However, there are no data regarding enzyme expression in NMSCs. The aim of this study was therefore to evaluate the potential involvement of NNMT in BCCs and SCCs. MATERIALS AND METHODS Immunohistochemical analyses were carried out on 40 BCC cases and 39 SCC cases, to evaluate enzyme expression in tumour and surrounding healthy margins. Moreover, the relationship between NNMT intratumour levels and clinico-pathological parameters were explored. RESULTS Nicotinamide N-methyltransferase was found to be overexpressed in BCCs compared with control tissues, while a significant enzyme downregulation was detected in SCCs with respect to corresponding healthy margins. In addition, NNMT levels were negatively related to aggressiveness of both BCCs (distinguishing between infiltrative and nodular tumours) and SCCs (considering head and neck forms and tumours of the extremities and trunk). CONCLUSIONS These evidences seem to demonstrate that the different NNMT dysregulation detected in BCC and SCC may be the result of important biological traits distinctively characterizing these two forms within NMSCs. In addition, enzyme levels seem to be inversely correlated with tumour aggressiveness, thus suggesting the potential suitability of the enzyme as a prognostic biomarker for both neoplasms.
Collapse
Affiliation(s)
- Veronica Pompei
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Eleonora Salvolini
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Corrado Rubini
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Guendalina Lucarini
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Elisa Molinelli
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Valerio Brisigotti
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Valentina Pozzi
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.,New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Ancona, Italy
| | - Davide Sartini
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Anna Campanati
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Annamaria Offidani
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Monica Emanuelli
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.,New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Ancona, Italy
| |
Collapse
|
21
|
Bonakdar A, Sahebazzamani F, Rasaee MJ, Hosseinkhani S, Rahbarizadeh F, Mahboudi F, Ganjali MR. In silico design and in vitro characterization of a recombinant antigen for specific recognition of NMP22. Int J Biol Macromol 2019; 140:69-77. [PMID: 31404598 DOI: 10.1016/j.ijbiomac.2019.08.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 01/22/2023]
Abstract
Although urine cytology and cystoscopy are current gold standard methods in diagnosis and surveillance of Bladder cancer (BC), they have some limitations which necessitates novel diagnostic approaches to compensate their drawbacks. In this regard, Nuclear Matrix Protein 22 (NMP22) is introduced as a potential tumor biomarker for BC detection (FDA approved). NMP22 determination mainly occurs through immunoassay platforms, raising a proper antibody against its antigen. Hence, development of such immunoassays seems crucial. Various bioinformatic tools were harnessed to select a region with lowest variability, highest density for linear and conformational epitopes, lowest post translational modifications, highest antigenicity, best physicochemical properties and reliable transcriptional properties. Subsequently, E. coli BL21 (DE3) and P. pastoris GS115 were applied for exogenous expression. Ultimately, protein purification and quantification was followed by ELISA test for antibody analyses. Both host successfully expressed the antigen, while the E. coli expression was with higher yield. The commercial anti-NMP22 antibodies showed relatively equal detection results. However, the slight better detection for the antigen with P. pastoris origin could be deduced as better structural properties for P. pastoris. These results indicate higher expression yields and lower costs for over-expression of this eukaryotic antigen.
Collapse
Affiliation(s)
- Alireza Bonakdar
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Sahebazzamani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Javad Rasaee
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saman Hosseinkhani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Fatemeh Rahbarizadeh
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, University of Tehran, Tehran, Iran; Biosensor Research Center, Endocrinology & Metabolism Molecular - Cellular Sciences Institute, Iran
| |
Collapse
|
22
|
Hah YS, Cho HY, Jo SY, Park YS, Heo EP, Yoon TJ. Nicotinamide N‑methyltransferase induces the proliferation and invasion of squamous cell carcinoma cells. Oncol Rep 2019; 42:1805-1814. [PMID: 31545452 PMCID: PMC6787961 DOI: 10.3892/or.2019.7315] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 08/14/2019] [Indexed: 12/21/2022] Open
Abstract
Cutaneous squamous cell carcinoma (cSCC) is a common malignancy initiated by keratinocytes of the epidermis, which are able to invade the dermis and its periphery. Although most patients with cSCC present with curable localized tumors, recurrence, metastasis and mortality occasionally occur. In the present study, nicotinamide N‑methyltransferase (NNMT) was identified as an upregulated protein in the SCC12 cell line, which has high invasive potential compared with the SCC13 cell line. The effects of NNMT knockdown on proliferation, migration and invasion were investigated using SCC cells. shRNA‑mediated downregulation of NNMT expression levels inhibited the proliferation and density‑dependent growth of SCC12 cells. In addition, the results of a cell motility assay showed that the migration and invasion of SCC cells were markedly decreased in NNMT‑knockdown cells. The assessment of epithelial‑mesenchymal transition (EMT)‑associated gene expression using PCR array analysis revealed that high NNMT expression levels were accompanied by high expression levels of EMT‑associated genes, and that NNMT knockdown effectively suppressed the expression of matrix metalloproteinase 9, osteopontin, versican core protein and zinc finger protein SNAI2 in SCC12 cells. These results revealed that the upregulation of NNMT induced cellular invasion via EMT‑related gene expression in SCC cells.
Collapse
Affiliation(s)
- Young-Sool Hah
- Biomedical Research Institute, Gyeongsang National University Hospital, and Institute of Health Sciences, Jinju 52727, Republic of Korea
| | - Hee Young Cho
- Biomedical Research Institute, Gyeongsang National University Hospital, and Institute of Health Sciences, Jinju 52727, Republic of Korea
| | - Sun Young Jo
- Department of Dermatology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon 51353, Republic of Korea
| | - Young Sook Park
- Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon 51353, Republic of Korea
| | - Eun Phil Heo
- Department of Dermatology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon 51353, Republic of Korea
| | - Tae-Jin Yoon
- Department of Dermatology and Institute of Health Sciences, School of Medicine, Gyeongsang National University and Hospital, Jinju 52727, Republic of Korea
| |
Collapse
|
23
|
Analysis of nicotinamide N-methyltransferase in oral malignant melanoma and potential prognostic significance. Melanoma Res 2019; 29:151-156. [DOI: 10.1097/cmr.0000000000000548] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
24
|
Seta R, Mascitti M, Campagna R, Sartini D, Fumarola S, Santarelli A, Giuliani M, Cecati M, Muzio LL, Emanuelli M. Overexpression of nicotinamide N-methyltransferase in HSC-2 OSCC cell line: effect on apoptosis and cell proliferation. Clin Oral Investig 2018; 23:829-838. [PMID: 29882109 DOI: 10.1007/s00784-018-2497-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 05/29/2018] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Oral squamous cell carcinoma (OSCC) is the most common malignancy of oral cavity. Despite advances in therapeutic approaches, the 5-year survival rate for oral cancer has not improved in the last three decades. Therefore, new molecular targets for early diagnosis and treatment of OSCC are needed. In the present study, we focused on the enzyme nicotinamide N-methyltransferase (NNMT). We have previously shown that enzyme expression is upregulated in OSCC and NNMT knockdown in PE/CA PJ-15 cells significantly decreased cell growth in vitro and tumorigenicity in vivo. MATERIAL AND METHODS To further explore the role of the enzyme in oral cancer cell metabolism, HSC-2 cells were transfected with the NNMT expression vector (pcDNA3-NNMT) and the effect of enzyme upregulation on cell proliferation was evaluated by MTT assay. Subsequently, we investigated at molecular level the role of NNMT on apoptosis and cell proliferation, by exploring the expression of β-catenin, survivin, and Ki-67 by real-time PCR. Moreover, we performed immunohistochemistry on 20 OSCC tissue samples to explore the expression level of NNMT and survivin ΔEx3 isoform. RESULTS Enzyme upregulation significantly increased cell growth in vitro. Moreover, a positive correlation between NNMT and survivin ΔEx3 isoform expression levels was found both in HSC-2 cells and in OSCC tissue samples. CONCLUSION Taken together, our results indicate a possible involvement of NNMT in the proliferation and tumorigenic capacity of OSCC cells and seem to suggest that the enzyme could represent a potential target for the treatment of oral cancer. CLINICAL RELEVANCE The involvement of NNMT in cell growth and anti-apoptotic mechanisms seems to suggest that this enzyme could be a new therapeutic target to improve the survival of OSCC patients.
Collapse
Affiliation(s)
- Riccardo Seta
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131, Ancona, Italy
| | - Marco Mascitti
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131, Ancona, Italy
| | - Roberto Campagna
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131, Ancona, Italy
| | - Davide Sartini
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131, Ancona, Italy
| | - Stefania Fumarola
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131, Ancona, Italy
| | - Andrea Santarelli
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131, Ancona, Italy
| | - Michele Giuliani
- Department of Clinical and Experimental Medicine, University of Foggia, 71121 - 71122, Foggia, Italy
| | - Monia Cecati
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131, Ancona, Italy
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine, University of Foggia, 71121 - 71122, Foggia, Italy
| | - Monica Emanuelli
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131, Ancona, Italy.
| |
Collapse
|
25
|
Oyeyemi O, Ezekiel C, Ayeni K, Nabofa W, Oyeyemi I, Oyedele O, Adefalujo A, Nwozichi C, Dada A. A pilot biomonitoring study of bladder tumor antigen (BTA) in aflatoxin exposed Nigerian villagers. AFRICAN JOURNAL OF UROLOGY 2018. [DOI: 10.1016/j.afju.2018.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
26
|
You Z, Liu Y, Liu X. Nicotinamide N-methyltransferase enhances the progression of prostate cancer by stabilizing sirtuin 1. Oncol Lett 2018; 15:9195-9201. [PMID: 29805651 PMCID: PMC5958777 DOI: 10.3892/ol.2018.8474] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 02/05/2018] [Indexed: 12/12/2022] Open
Abstract
A previous study demonstrated that nicotinamide N-methyltransferase (NNMT) is upregulated in the tissues of patients with prostate cancer (PCa); however, the specific underlying mechanism of this remains unclear. To begin with, the expression of NNMT was investigated in the peripheral blood of patients with PCa and of healthy control subjects. The results indicated that the expression level of NNMT was elevated in the peripheral blood and tissues of patients with PCa. Furthermore, the overexpression of NNMT enhanced PC-3 cell viability, invasion and migration capacity. Additionally, the overexpression of NNMT significantly increased the mRNA level of sirtuin 1 (SIRT1) in PC-3 cells. In addition, nicotinamide treatment significantly suppressed the expression of SIRT1 even in PC-3 cells transfected with adeno-associated virus-NNMT. Furthermore, the PC-3 cell invasion capacity was notably decreased by the nicotinamide treatment; however, such effects were largely abolished by the overexpression of NNMT in PC-3 cells. These data indicated that NNMT enhanced PC-3 cell migration and invasion mainly by regulating SIRT1 expression. In summary, the present study indicated that NNMT is an important regulator of SIRT1 expression in PC-3 cells and may be a potential therapeutic target for PCa.
Collapse
Affiliation(s)
- Zhenyu You
- Department of Oncology, 202 Hospital of Chinese People's Liberation Army, Shenyang, Liaoning 110812, P.R. China
| | - Yang Liu
- Department of Oncology, 202 Hospital of Chinese People's Liberation Army, Shenyang, Liaoning 110812, P.R. China
| | - Xuefei Liu
- Department of Oncology, 202 Hospital of Chinese People's Liberation Army, Shenyang, Liaoning 110812, P.R. China
| |
Collapse
|
27
|
Ganzetti G, Sartini D, Campanati A, Rubini C, Molinelli E, Brisigotti V, Cecati M, Pozzi V, Campagna R, Offidani A, Emanuelli M. Nicotinamide N-methyltransferase: potential involvement in cutaneous malignant melanoma. Melanoma Res 2018; 28:82-88. [PMID: 29420365 DOI: 10.1097/cmr.0000000000000430] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Nicotinamide N-methyltransferase (NNMT) is an enzyme that catalyzes the N-methylation of nicotinamide and pyridine compounds, participating in xenobiotic and drug metabolism. Data on literature have evidenced a possible role of NNMT in many solid cancers, but no data are currently available in cutaneous melanoma. Recent important advances have been achieved in the treatment of advanced melanoma with targeted therapy and immunotherapy. However, the identification of biomarkers that can be used for the detection of early stage disease as well as for monitoring the therapeutic response during treatment is of utmost importance. The aim of this study was to study the possible role of NNMT in melanoma. In the present study, we carried out immunohistochemical analyses to evaluate the expression of the enzyme NNMT in 34 melanomas and 34 nevi. Moreover, we explored the relationship between NNMT levels and the prognostic parameters of patients with melanoma. The results obtained showed significantly (P<0.0001) higher NNMT expression in melanoma compared with that detected in nevi. In addition, a significant (P<0.05) inverse relationship was found between enzyme levels and Breslow thickness, Clark level, the presence/number of mitoses, and ulceration. Taken together, these data seem to suggest that NNMT could represent a molecular biomarker for melanoma, thus highlighting its potential for both diagnosis and prognosis of this neoplasm.
Collapse
Affiliation(s)
| | | | | | - Corrado Rubini
- Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | | | | | | | - Valentina Pozzi
- Clinical and Stomatological Sciences
- New York-Marche Structural Biology Centre (NY-MaSBiC), New York City, New York, USA
| | | | | | - Monica Emanuelli
- Clinical and Stomatological Sciences
- New York-Marche Structural Biology Centre (NY-MaSBiC), New York City, New York, USA
| |
Collapse
|
28
|
Clinical performance and utility of a NNMT-based urine test for bladder cancer. Int J Biol Markers 2017; 33:94-101. [PMID: 29148015 DOI: 10.5301/ijbm.5000311] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background: Bladder cancer (BC) represents the most common neoplasm of the urinary tract. Although cystoscopy and urine cytology represent the gold standard methods to monitor BC, both procedures have limitations. Therefore, the identification of reliable biomarkers for early and noninvasive detection of BC is urgently required. Methods: In this study, we analyzed nicotinamide N-methyltransferase (NNMT) expression in urine samples from 55 BC patients and 107 controls, using real-time polymerase chain reaction (PCR). Receiver operating characteristic (ROC) analysis was used to identify the best cutoff value to discriminate BC patients from healthy donors, and to evaluate the diagnostic accuracy of a urine-based NNMT test. Results: The results demonstrated that urinary NNMT expression was significantly (p<0.05) higher in BC patients. Moreover, a significant (p<0.05) inverse correlation was found between NNMT expression and histological grade. The ROC analysis revealed that a ΔCq of 13.3 was the best cutoff value, since it was associated with the highest combination of sensitivity and specificity. Moreover, the area under the curve (AUC) value was 0.913 (p<0.05), indicating the excellent diagnostic accuracy of a urine-based NNMT test. Conclusions: Our data indicate that NNMT is a promising biomarker that could be used to support the early and noninvasive diagnosis of BC.
Collapse
|
29
|
Ramsden DB, Waring RH, Barlow DJ, Parsons RB. Nicotinamide N-Methyltransferase in Health and Cancer. Int J Tryptophan Res 2017; 10:1178646917691739. [PMID: 35185340 PMCID: PMC8851132 DOI: 10.1177/1178646917691739] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 01/11/2017] [Indexed: 12/19/2022] Open
Abstract
Over the past decade, the roles of nicotinamide N-methyltransferase and its product 1-methyl nicotinamide have emerged from playing merely minor roles in phase 2 xenobiotic metabolism as actors in some of the most important scenes of human life. In this review, the structures of the gene, messenger RNA, and protein are discussed, together with the role of the enzyme in many of the common cancers that afflict people today.
Collapse
Affiliation(s)
- David B Ramsden
- Institute of Metabolism and Systems Research, The Medical School, University of Birmingham, Birmingham, UK
| | | | - David J Barlow
- Institute of Pharmaceutical Science, King’s College London, London, UK
| | - Richard B Parsons
- Institute of Pharmaceutical Science, King’s College London, London, UK
| |
Collapse
|
30
|
Palanichamy K, Kanji S, Gordon N, Thirumoorthy K, Jacob JR, Litzenberg KT, Patel D, Chakravarti A. NNMT Silencing Activates Tumor Suppressor PP2A, Inactivates Oncogenic STKs, and Inhibits Tumor Forming Ability. Clin Cancer Res 2016; 23:2325-2334. [PMID: 27810903 DOI: 10.1158/1078-0432.ccr-16-1323] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/19/2016] [Accepted: 10/12/2016] [Indexed: 12/12/2022]
Abstract
Purpose: To identify potential molecular hubs that regulate oncogenic kinases and target them to improve treatment outcomes for glioblastoma patients.Experimental Design: Data mining of The Cancer Genome Atlas datasets identified nicotinamide-N-methyl transferase (NNMT) as a prognostic marker for glioblastoma, an enzyme linked to the reorganization of the methylome. We tested our hypothesis that NNMT plays a crucial role by modulating protein methylation, leading to inactivation of tumor suppressors and activation of oncogenes. Further experiments were performed to understand the underlying biochemical mechanisms using glioblastoma patient samples, established, primary, and isogenic cells.Results: We demonstrate that NNMT outcompetes leucine carboxyl methyl transferase 1 (LCMT1) for methyl transfer from principal methyl donor SAM in biological systems. Inhibiting NNMT increased the availability of methyl groups for LCMT1 to methylate PP2A, resulting in the inhibition of oncogenic serine/threonine kinases (STK). Further, NNMT inhibition retained the radiosensitizer nicotinamide and enhanced radiation sensitivity. We have provided the biochemical rationale of how NNMT plays a vital role in inhibiting tumor suppressor PP2A while concomitantly activating STKs.Conclusions: We report the intricate novel mechanism in which NNMT inhibits tumor suppressor PP2A by reorganizing the methylome both at epigenome and proteome levels and concomitantly activating prosurvival STKs. In glioblastoma tumors with NNMT expression, activation of PP2A can be accomplished by FDA approved perphenazine (PPZ), which is currently used to treat mood disorders such as schizophrenia, bipolar disorder, etc. This study forms a foundation for further glioblastoma clinical trials using PPZ with standard of care treatment. Clin Cancer Res; 23(9); 2325-34. ©2016 AACR.
Collapse
Affiliation(s)
- Kamalakannan Palanichamy
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio.
| | - Suman Kanji
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Nicolaus Gordon
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Krishnan Thirumoorthy
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - John R Jacob
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Kevin T Litzenberg
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Disha Patel
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Arnab Chakravarti
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| |
Collapse
|
31
|
Drew JE, Farquharson AJ, Horgan GW, Williams LM. Tissue-specific regulation of sirtuin and nicotinamide adenine dinucleotide biosynthetic pathways identified in C57Bl/6 mice in response to high-fat feeding. J Nutr Biochem 2016; 37:20-29. [PMID: 27592202 DOI: 10.1016/j.jnutbio.2016.07.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 06/16/2016] [Accepted: 07/15/2016] [Indexed: 01/21/2023]
Abstract
The sirtuin (SIRT)/nicotinamide adenine dinucleotide (NAD) system is implicated in development of type 2 diabetes (T2D) and diet-induced obesity, a major risk factor for T2D. Mechanistic links have not yet been defined. SIRT/NAD system gene expression and NAD/NADH levels were measured in liver, white adipose tissue (WAT) and skeletal muscle from mice fed either a low-fat diet or high-fat diet (HFD) for 3 days up to 16 weeks. An in-house custom-designed multiplex gene expression assay assessed all 7 mouse SIRTs (SIRT1-7) and 16 enzymes involved in conversion of tryptophan, niacin, nicotinamide riboside and metabolic precursors to NAD. Significantly altered transcription was correlated with body weight, fat mass, plasma lipids and hormones. Regulation of the SIRT/NAD system was associated with early (SIRT4, SIRT7, NAPRT1 and NMNAT2) and late phases (NMNAT3, NMRK2, ABCA1 and CD38) of glucose intolerance. TDO2 and NNMT were identified as markers of HFD consumption. Altered regulation of the SIRT/NAD system in response to HFD was prominent in liver compared with WAT or muscle. Multiple components of the SIRTs and NAD biosynthetic enzymes network respond to consumption of dietary fat. Novel molecular targets identified above could direct strategies for dietary/therapeutic interventions to limit metabolic dysfunction and development of T2D.
Collapse
Affiliation(s)
- Janice E Drew
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen AB21 9SB, Scotland.
| | - Andrew J Farquharson
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen AB21 9SB, Scotland
| | - Graham W Horgan
- Biomathematics and Statistics Scotland, Aberdeen AB21 9SB, Scotland
| | - Lynda M Williams
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen AB21 9SB, Scotland
| |
Collapse
|
32
|
Sun WP, Zhai MZ, Li D, Zhou Y, Chen NN, Guo M, Zhou SS. Comparison of the effects of nicotinic acid and nicotinamide degradation on plasma betaine and choline levels. Clin Nutr 2016; 36:1136-1142. [PMID: 27567458 DOI: 10.1016/j.clnu.2016.07.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 12/15/2022]
Abstract
AIM The present study was to compare the effects of nicotinic acid and nicotinamide on the plasma methyl donors, choline and betaine. METHODS Thirty adult subjects were randomly divided into three groups of equal size, and orally received purified water (C group), nicotinic acid (300 mg, NA group) or nicotinamide (300 mg, NM group). Plasma nicotinamide, N1-methylnicotinamide, homocysteine, betaine and choline levels before and 1.5-h and 3-h post-dosing, plasma normetanephrine and metanephrine concentrations at 3-h post-dosing, and the urinary excretion of N1-methyl-2-pyridone-5-carboxamide during the test period were examined. RESULTS The level of 3-h plasma nicotinamide, N1-methylnicotinamide, homocysteine, the urinary excretion of N1-methyl-2-pyridone-5-carboxamide and pulse pressure (PP) in the NM group was 221%, 3972%, 61%, 1728% and 21.2% higher than that of the control group (P < 0.01, except homocysteine and PP P < 0.05), while the 3-h plasma betaine, normetanephrine and metanephrine level in the NM group was 24.4%, 9.4% and 11.7% lower (P < 0.05, except betaine P < 0.01), without significant difference in choline levels. Similar but less pronounced changes were observed in the NA group, with a lower level of 3-h plasma N1-methylnicotinamide (1.90 ± 0.20 μmol/l vs. 3.62 ± 0.27 μmol/l, P < 0.01) and homocysteine (12.85 ± 1.39 μmol/l vs. 18.08 ± 1.02 μmol/l, P < 0.05) but a higher level of betaine (27.44 ± 0.71 μmol/l vs. 23.52 ± 0.61 μmol/l, P < 0.05) than that of the NM group. CONCLUSION The degradation of nicotinamide consumes more betaine than that of nicotinic acid at identical doses. This difference should be taken into consideration in niacin fortification.
Collapse
Affiliation(s)
- Wu-Ping Sun
- Institute of Basic Medical Sciences, Medical College, Dalian University, Dalian 116622, China; Okazaki Institute for Integrative Bioscience, National Institutes of Natural Sciences, Okazaki 444-8787, Japan
| | - Ming-Zhu Zhai
- Institute of Science and Technology Austria, Am Campus 1, Klosterneuburg 3400, Austria
| | - Da Li
- Institute of Basic Medical Sciences, Medical College, Dalian University, Dalian 116622, China; Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yiming Zhou
- Okazaki Institute for Integrative Bioscience, National Institutes of Natural Sciences, Okazaki 444-8787, Japan
| | - Na-Na Chen
- Institute of Basic Medical Sciences, Medical College, Dalian University, Dalian 116622, China
| | - Ming Guo
- College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, China
| | - Shi-Sheng Zhou
- Institute of Basic Medical Sciences, Medical College, Dalian University, Dalian 116622, China.
| |
Collapse
|
33
|
Musavi Shenas SMH, Mansoori B, Mohammadi A, Salehi S, Kaffash B, Talebi B, Babaloo Z, Shanehbandi D, Baradaran B. SiRNA-mediated silencing of Snail-1 induces apoptosis and alters micro RNA expression in human urinary bladder cancer cell line. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:969-974. [DOI: 10.1080/21691401.2016.1198361] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Seyed Mohammad Hossein Musavi Shenas
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- International Branch (Aras), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Mohammadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shima Salehi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Kaffash
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behnaz Talebi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zohreh Babaloo
- Department of Immunology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Dariush Shanehbandi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
34
|
Darwiche F, Parekh DJ, Gonzalgo ML. Biomarkers for non-muscle invasive bladder cancer: Current tests and future promise. Indian J Urol 2015; 31:273-82. [PMID: 26604437 PMCID: PMC4626910 DOI: 10.4103/0970-1591.166448] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The search continues for optimal markers that can be utilized to improve bladder cancer detection and to predict disease recurrence. Although no single marker has yet replaced the need to perform cystoscopy and urine cytology, many tests have been evaluated and are being developed. In the future, these promising markers may be incorporated into standard practice to address the challenge of screening in addition to long-term surveillance of patients who have or are at risk for developing bladder cancer.
Collapse
Affiliation(s)
- Fadi Darwiche
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Dipen J Parekh
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Mark L Gonzalgo
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| |
Collapse
|
35
|
Sartini D, Seta R, Pozzi V, Morganti S, Rubini C, Zizzi A, Tomasetti M, Santarelli L, Emanuelli M. Role of nicotinamide N-methyltransferase in non-small cell lung cancer: in vitro effect of shRNA-mediated gene silencing on tumourigenicity. Biol Chem 2015; 396:225-34. [PMID: 25204218 DOI: 10.1515/hsz-2014-0231] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 09/03/2014] [Indexed: 01/03/2023]
Abstract
Lung cancer is the second most commonly diagnosed neoplasm, and represents the leading cause of tumour death worldwide. As patients are often diagnosed at a late stage, current therapeutic strategies have limited effectiveness and the prognosis remains poor. Successful treatment depends on early diagnosis and knowledge concerning molecular mechanisms underlying lung carcinogenesis. In the present study, we focused on nicotinamide N-methyltransferase (NNMT), which is overexpressed in several malignancies. First, we analysed NNMT expression in a cohort of 36 patients with non-small cell lung cancer (NSCLC) by immunohistochemistry. Subsequently, we examined NNMT expression levels in the human lung cancer cell line A549 by Real-Time PCR, Western blot and catalytic activity assay, and evaluated the effect of NNMT knockdown on cell proliferation and anchorage-independent cell growth by MTT and soft agar colony formation assays, respectively. NSCLC displayed higher NNMT expression levels compared to both tumour-adjacent and surrounding tissue. Moreover, shRNA-mediated gene silencing of NNMT led to a significant inhibition of cell proliferation and colony formation ability on soft agar. Our results show that the downregulation of NNMT significantly reduced in vitro tumorigenicity of A549 cells and suggest that NNMT could represent an interesting molecular target for lung cancer therapy.
Collapse
|
36
|
Lei M, Xie W, Sun E, Sun Y, Tian D, Liu C, Han R, Li N, Liu M, Han R, Liu L. microRNA-21 Regulates Cell Proliferation and Migration and Cross Talk with PTEN and p53 in Bladder Cancer. DNA Cell Biol 2015; 34:626-32. [PMID: 26230405 DOI: 10.1089/dna.2015.2868] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Mingde Lei
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Wanqin Xie
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Erlin Sun
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Yan Sun
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Dawei Tian
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Chunyu Liu
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Rong Han
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Na Li
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Min Liu
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Ruifa Han
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Liwei Liu
- Department of Urology, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| |
Collapse
|
37
|
Giuliante R, Sartini D, Bacchetti T, Rocchetti R, Klöting I, Polidori C, Ferretti G, Emanuelli M. Potential Involvement of Nicotinamide N-Methyltransferase in the Pathogenesis of Metabolic Syndrome. Metab Syndr Relat Disord 2015; 13:165-70. [DOI: 10.1089/met.2014.0134] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Rachela Giuliante
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Davide Sartini
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Tiziana Bacchetti
- Department of Life Sciences and Environment, Polytechnic University of Marche, Ancona, Italy
| | - Romina Rocchetti
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Ingrid Klöting
- Department of Laboratory Animal Science, Medical Faculty, University of Greifswald, Karlsburg, Germany
| | - Carlo Polidori
- School of Pharmacy, University of Camerino, Camerino, Italy
| | - Gianna Ferretti
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Monica Emanuelli
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy
| |
Collapse
|
38
|
Kannt A, Pfenninger A, Teichert L, Tönjes A, Dietrich A, Schön MR, Klöting N, Blüher M. Association of nicotinamide-N-methyltransferase mRNA expression in human adipose tissue and the plasma concentration of its product, 1-methylnicotinamide, with insulin resistance. Diabetologia 2015; 58:799-808. [PMID: 25596852 PMCID: PMC4351435 DOI: 10.1007/s00125-014-3490-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 12/15/2014] [Indexed: 12/13/2022]
Abstract
AIMS/HYPOTHESIS Nicotinamide-N-methyltransferase (NNMT) was recently shown to be upregulated in mouse models of insulin resistance and obesity. So far, it is unknown whether NNMT is regulated in human disease. We have explored the hypothesis that white adipose tissue (WAT) NNMT expression and plasma 1-methylnicotinamide (MNA) concentration are increased in human insulin resistance and type 2 diabetes. METHODS NNMT expression and plasma MNA were analysed in three groups of individuals: (1) 199 patients undergoing abdominal surgery; (2) 60 individuals on a 12-week exercise programme and (3) 55 patients on a two-step bariatric surgery programme. RESULTS Patients with manifest type 2 diabetes have a significantly (approximately twofold) higher NNMT expression both in omental and subcutaneous WAT compared with controls. Notably, plasma MNA correlated significantly with WAT NNMT expression in patients with type 2 diabetes (women, r = 0.59, p < 0.001; men, r = 0.61, p < 0.001) but not in healthy control individuals. In insulin-resistant individuals, there was an inverse correlation between insulin sensitivity and plasma MNA (r = 0.44, p = 0.01) or adipose tissue NNMT mRNA (r = 0.64, p < 0.001). The latter association was confirmed in a second cohort (n = 60, r = 0.78, p < 0.001). Interventions improving insulin sensitivity--exercise and bariatric surgery--were associated with a significant (p < 0.001) reduction in WAT NNMT expression. Bariatric surgery was also associated with a significant decrease in plasma MNA. CONCLUSIONS/INTERPRETATION We demonstrate that WAT NNMT expression is regulated in human insulin resistance and type 2 diabetes and that plasma MNA correlates with increased tissue NNMT expression and the degree of insulin resistance, making it a potential biomarker for loss of insulin sensitivity.
Collapse
Affiliation(s)
- Aimo Kannt
- Sanofi Research and Development, Industriepark Hoechst, H824, 65926, Frankfurt am Main, Germany,
| | | | | | | | | | | | | | | |
Collapse
|
39
|
The promise of novel molecular markers in bladder cancer. Int J Mol Sci 2014; 15:23897-908. [PMID: 25535079 PMCID: PMC4284796 DOI: 10.3390/ijms151223897] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/25/2014] [Accepted: 12/11/2014] [Indexed: 01/26/2023] Open
Abstract
Bladder cancer is the fourth most common malignancy in the US and is associated with the highest cost per patient. A high likelihood of recurrence, mandating stringent surveillance protocols, has made the development of urinary markers a focus of intense pursuit with the hope of decreasing the burden this disease places on patients and the healthcare system. To date, routine use of markers is not recommended for screening or diagnosis. Interests include the development of a single urinary marker that can be used in place of or as an adjunct to current screening and surveillance techniques, as well identifying a molecular signature for an individual’s disease that can help predict progression, prognosis, and potential therapeutic response. Markers have shown potential value in improving diagnostic accuracy when used as an adjunct to current modalities, risk-stratification of patients that could aid the clinician in determining aggressiveness of surveillance, and allowing for a decrease in invasive surveillance procedures. This review discusses the current understanding of emerging biomarkers, including miRNAs, gene signatures and detection of circulating tumor cells in the blood, and their potential clinical value in bladder cancer diagnosis, as prognostic indicators, and surveillance tools, as well as limitations to their incorporation into medical practice.
Collapse
|
40
|
Zhou W, Gui M, Zhu M, Long Z, Huang L, Zhou J, He L, Zhong K. Nicotinamide N-methyltransferase is overexpressed in prostate cancer and correlates with prolonged progression-free and overall survival times. Oncol Lett 2014; 8:1175-1180. [PMID: 25120681 PMCID: PMC4114624 DOI: 10.3892/ol.2014.2287] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 06/13/2014] [Indexed: 12/31/2022] Open
Abstract
Nicotinamide N -methyltransferase (NNMT) has been identified to be associated with tumorigenesis and the malignant transformation of numerous types of cancer. The aim of the present study was to explore the expression and prognostic significance of NNMT in prostate cancer (PCa). Immunohistochemical NNMT expression was examined in 26 cases of benign prostate hyperplasia (BPH), 18 cases of high-grade prostatic intraepithelial neoplasia (HGPIN) and 120 cases of PCa. While rarely expressed in BPH (8/26 cases; 30.8%), NNMT was found to be significantly upregulated in HGPIN (15/18 cases; 83.3%) and PCa (77/120 cases; 64.2%). Clinicopathological analysis revealed that NNMT expression was negatively correlated with Gleason score (P<0.001). Furthermore, Kaplan-Meier survival curves revealed that high NNMT expression was associated with prolonged progression-free survival (PFS) and overall survival (OS) times in patients with advanced PCa. Multivariate analysis showed that NNMT was an independent prognostic marker of PFS and OS in patients with advanced PCa. The results of the present study suggested that NNMT may contribute to the development of PCa and may potentially be a favorable prognostic marker for the survival of patients with advanced PCa.
Collapse
Affiliation(s)
- Weimin Zhou
- Department of Urology, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Ming Gui
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Min Zhu
- Molecular Biology Research Center, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, P.R. China
| | - Zhi Long
- Department of Urology, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Lihua Huang
- Center for Medical Experiments, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jun Zhou
- Center for Medical Experiments, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Leye He
- Department of Urology, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Kuangbiao Zhong
- Department of Urology, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| |
Collapse
|
41
|
Guo A, Wang X, Gao L, Shi J, Sun C, Wan Z. Bladder tumour antigen (BTA stat) test compared to the urine cytology in the diagnosis of bladder cancer: A meta-analysis. Can Urol Assoc J 2014; 8:E347-52. [PMID: 24940462 PMCID: PMC4039599 DOI: 10.5489/cuaj.1668] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION We evaluate the diagnostic value of bladder tumour antigen (BTA stat) tests compared with urine cytology test in detecting bladder cancer. METHODS We searched public databases including PubMed, MEDLINE Springer, Elsevier Science Direct, Cochrane Library and Google Scholar before December 2012. To collect relevant data of BTA stat tests and urine cytology tests in patients with bladder cancer, we studied meta-analyses of sensitivity, specificity, positive likelihood ratio (LR), negative LR and diagnostic odds ratios (DOR) of BTA stat tests and cytology tests from published studies. We applied the software of Rev. Man 5.1 and Stata 11.0 to the meta-analysis. RESULTS A total of 13 separate studies consisting of 3462 patients with bladder cancer were considered in the meta-analysis. We found that the BTA stat test had a higher sensitivity than the urine cytology test (0.67, 95% confidence interval [CI] 0.64 to 0.69 vs. 0.43, 95% CI 0.40 to 0.46), but the specificity, positive LR, negative LR, DOR, the area under the curve (AUC) and Q index of the BTA stat test were lower compared with the urine cytology test. The results of the Egger's linear regression test showed no publication bias (p > 0.05). CONCLUSIONS Specificity, positive LR, negative LR, DOR, the AUC and the Q index of the urine cytology test may be superior to the BTA stat test, but the BTA stat test has greater sensitivity than the urine cytology test.
Collapse
Affiliation(s)
- Aiye Guo
- Department of Clinical Laboratory, Henan Province People’s Hospital, Zhengzhou, Henan, China
| | - Xiuhua Wang
- Foreign Affairs Division of Scientific Research, Henan Province People’s Hospital, Zhengzhou, Henan, China
| | - Lan Gao
- Department of Clinical Laboratory, Henan Province People’s Hospital, Zhengzhou, Henan, China
| | - Juan Shi
- Department of Clinical Laboratory, Henan Province People’s Hospital, Zhengzhou, Henan, China
| | - Changyi Sun
- Department of Clinical Laboratory, Henan Province People’s Hospital, Zhengzhou, Henan, China
| | - Zhen Wan
- Department of Clinical Laboratory, Henan Province People’s Hospital, Zhengzhou, Henan, China
| |
Collapse
|
42
|
Ghafouri-Fard S, Nekoohesh L, Motevaseli E. Bladder Cancer Biomarkers: Review and Update. Asian Pac J Cancer Prev 2014; 15:2395-403. [DOI: 10.7314/apjcp.2014.15.6.2395] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
43
|
Murphy CR, Karnes RJ. Bladder Cancer in Males: A Comprehensive Review of Urothelial Carcinoma of the Bladder. JOURNAL OF MEN'S HEALTH 2014. [DOI: 10.1089/jomh.2014.3503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
44
|
Maternal nicotinamide supplementation causes global DNA hypomethylation, uracil hypo-incorporation and gene expression changes in fetal rats. Br J Nutr 2014; 111:1594-601. [PMID: 24507733 DOI: 10.1017/s0007114513004054] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent evidence shows that excess nicotinamide can cause epigenetic changes in developing rats. The aim of the present study was to investigate the effects of maternal nicotinamide supplementation on the fetus. Female rats were randomised into four groups fed a standard chow diet (control group) or diets supplemented with 1 g/kg of nicotinamide (low-dose group), 4 g/kg of nicotinamide (high-dose group) or 4 g/kg of nicotinamide plus 2 g/kg of betaine (betaine group) for 14-16 d before mating and throughout the study. Fetal tissue samples were collected on the 20th day of pregnancy. Compared with the control group, the high-dose group had a higher fetal death rate, and the average fetal body weight was higher in the low-dose group but lower in the high-dose group. Nicotinamide supplementation led to a decrease in placental and fetal hepatic genomic DNA methylation and genomic uracil contents (a factor modifying DNA for diversity) in the placenta and fetal liver and brain, which could be completely or partially prevented by betaine. Moreover, nicotinamide supplementation induced tissue-specific alterations in the mRNA expression of the genes encoding nicotinamide N-methyltransferase, DNA methyltransferase 1, catalase and tumour protein p53 in the placenta and fetal liver. High-dose nicotinamide supplementation increased fetal hepatic α-fetoprotein mRNA level, which was prevented by betaine supplementation. It is concluded that maternal nicotinamide supplementation can induce changes in fetal epigenetic modification and DNA base composition. The present study raises the concern that maternal nicotinamide supplementation may play a role in the development of epigenetic-related diseases in the offspring.
Collapse
|
45
|
RNA-mediated gene silencing of nicotinamide N-methyltransferase is associated with decreased tumorigenicity in human oral carcinoma cells. PLoS One 2013; 8:e71272. [PMID: 23990942 PMCID: PMC3749215 DOI: 10.1371/journal.pone.0071272] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 07/04/2013] [Indexed: 12/25/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is the most common type of oral cancer. Despite progress in the treatment of OSCC, overall survival has not improved substantially in the last three decades. Therefore, identification of reliable biomarkers becomes essential to develop effective anti-cancer therapy. In this study, we focused on the enzyme Nicotinamide N-methyltransferase (NNMT), which plays a fundamental role in the biotransformation of many xenobiotics. Although several tumors have been associated with abnormal NNMT expression, its role in cancer cell metabolism remains largely unknown. In this report, 7 human oral cancer cell lines were examined for NNMT expression by Real-Time PCR, Western blot and HPLC-based catalytic assay. Subsequently, we evaluated the in vitro effect of shRNA-mediated silencing of NNMT on cell proliferation. In vivo tumorigenicity of oral cancer cells with stable knockdown of NNMT was assayed by using xenograft models. High expression levels of NNMT were found in PE/CA PJ-15 cells, in keeping with the results of Western blot and catalytic activity assay. PE/CA PJ-15 cell line was stably transfected with shRNA plasmids against NNMT and analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) and soft agar Assays. Transfected and control cells were injected into athymic mice in order to evaluate the effect of NNMT silencing on tumor growth. NNMT downregulation resulted in decreased cell proliferation and colony formation ability on soft agar. In athymic mice, NNMT silencing induced a marked reduction in tumour volume. Our results show that the downregulation of NNMT expression in human oral carcinoma cells significantly inhibits cell growth in vitro and tumorigenicity in vivo. All these experimental data seem to suggest that NNMT plays a critical role in the proliferation and tumorigenic capacity of oral cancer cells, and its inhibition could represent a potential molecular approach to the treatment of oral carcinoma.
Collapse
|
46
|
Nicotinamide N-methyltransferase in Non-small Cell Lung Cancer: Promising Results for Targeted Anti-cancer Therapy. Cell Biochem Biophys 2013; 67:865-73. [DOI: 10.1007/s12013-013-9574-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|