1
|
Chen T. Unveiling the significance of inducible nitric oxide synthase: Its impact on cancer progression and clinical implications. Cancer Lett 2024; 592:216931. [PMID: 38701892 DOI: 10.1016/j.canlet.2024.216931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/14/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
The intricate role of inducible nitric oxide synthase (iNOS) in cancer pathophysiology has garnered significant attention, highlighting the complex interplay between tumorigenesis, immune response, and cellular metabolism. As an enzyme responsible for producing nitric oxide (NO) in response to inflammatory stimuli. iNOS is implicated in various aspects of cancer development, including DNA damage, angiogenesis, and evasion of apoptosis. This review synthesizes the current findings from both preclinical and clinical studies on iNOS across different cancer types, reflecting the variability depending on cellular context and tumor microenvironment. We explore the molecular mechanisms by which iNOS modulates cancer cell growth, survival, and metastasis, emphasizing its impact on immune surveillance and response to treatment. Additionally, the potential of targeting iNOS as a therapeutic strategy in cancer treatment is examined. By integrating insights from recent advances, this review aims to elucidate the significant role of iNOS in cancer and pave the way for novel diagnostic and therapeutic approaches.
Collapse
Affiliation(s)
- Tong Chen
- Division of Medical Oncology, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, OH, 43210, USA; The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA.
| |
Collapse
|
2
|
Dyachenko EI, Bel’skaya LV. The Role of Amino Acids in Non-Enzymatic Antioxidant Mechanisms in Cancer: A Review. Metabolites 2023; 14:28. [PMID: 38248831 PMCID: PMC10818545 DOI: 10.3390/metabo14010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/23/2024] Open
Abstract
Currently, the antioxidant properties of amino acids and their role in the physicochemical processes accompanying oxidative stress in cancer remain unclear. Cancer cells are known to extensively uptake amino acids, which are used as an energy source, antioxidant precursors that reduce oxidative stress in cancer, and as regulators of inhibiting or inducing tumor cell-associated gene expression. This review examines nine amino acids (Cys, His, Phe, Met, Trp, Tyr, Pro, Arg, Lys), which play a key role in the non-enzymatic oxidative process in various cancers. Conventionally, these amino acids can be divided into two groups, in one of which the activity increases (Cys, Phe, Met, Pro, Arg, Lys) in cancer, and in the other, it decreases (His, Trp, Tyr). The review examines changes in the metabolism of nine amino acids in eleven types of oncology. We have identified the main nonspecific mechanisms of changes in the metabolic activity of amino acids, and described direct and indirect effects on the redox homeostasis of cells. In the future, this will help to understand better the nature of life of a cancer cell and identify therapeutic targets more effectively.
Collapse
Affiliation(s)
| | - Lyudmila V. Bel’skaya
- Biochemistry Research Laboratory, Omsk State Pedagogical University, Omsk 644099, Russia;
| |
Collapse
|
3
|
Hybrids as NO Donors. Int J Mol Sci 2021; 22:ijms22189788. [PMID: 34575950 PMCID: PMC8469192 DOI: 10.3390/ijms22189788] [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: 07/29/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022] Open
Abstract
Cinnamic acid and its derivatives have been studied for a variety of biological properties, including anti-inflammatory, antioxidant, anticancer, antihypertensive, and antibacterial. Many hybrids of cinnamic derivatives with other bioactive molecules have been synthesized and evaluated as nitric oxide (NO) donors. Since NO plays a significant role in various biological processes, including vasodilation, inflammation, and neurotransmission, NO donor groups are incorporated into the structures of already-known bioactive molecules to enhance their biological properties. In this review, we present cinnamic hybrids with NO-donating ability useful in the treatment of several diseases.
Collapse
|
4
|
Chen CL, Hsu SC, Ann DK, Yen Y, Kung HJ. Arginine Signaling and Cancer Metabolism. Cancers (Basel) 2021; 13:3541. [PMID: 34298755 PMCID: PMC8306961 DOI: 10.3390/cancers13143541] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/01/2021] [Accepted: 07/12/2021] [Indexed: 12/19/2022] Open
Abstract
Arginine is an amino acid critically involved in multiple cellular processes including the syntheses of nitric oxide and polyamines, and is a direct activator of mTOR, a nutrient-sensing kinase strongly implicated in carcinogenesis. Yet, it is also considered as a non- or semi-essential amino acid, due to normal cells' intrinsic ability to synthesize arginine from citrulline and aspartate via ASS1 (argininosuccinate synthase 1) and ASL (argininosuccinate lyase). As such, arginine can be used as a dietary supplement and its depletion as a therapeutic strategy. Strikingly, in over 70% of tumors, ASS1 transcription is suppressed, rendering the cells addicted to external arginine, forming the basis of arginine-deprivation therapy. In this review, we will discuss arginine as a signaling metabolite, arginine's role in cancer metabolism, arginine as an epigenetic regulator, arginine as an immunomodulator, and arginine as a therapeutic target. We will also provide a comprehensive summary of ADI (arginine deiminase)-based arginine-deprivation preclinical studies and an update of clinical trials for ADI and arginase. The different cell killing mechanisms associated with various cancer types will also be described.
Collapse
Affiliation(s)
- Chia-Lin Chen
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan 350, Miaoli County, Taiwan;
| | - Sheng-Chieh Hsu
- Institute of Biotechnology, National Tsing-Hua University, Hsinchu 30035, Taiwan;
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350, Miaoli County, Taiwan
| | - David K. Ann
- Department of Diabetes and Metabolic Diseases Research, Irell & Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA;
| | - Yun Yen
- Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan;
| | - Hsing-Jien Kung
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan 350, Miaoli County, Taiwan;
- Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan;
- Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- Comprehensive Cancer Center, Department of Biochemistry and Molecular Medicine, University of California at Davis, Sacramento, CA 95817, USA
| |
Collapse
|
5
|
Jen CI, Su CH, Lai MN, Ng LT. Comparative anti-inflammatory characterization of selected fungal and plant water soluble polysaccharides. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2021. [DOI: 10.3136/fstr.27.453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Chia-I Jen
- Department of Agricultural Chemistry, National Taiwan University
| | - Chun-Han Su
- Department of Agricultural Chemistry, National Taiwan University
| | | | - Lean-Teik Ng
- Department of Agricultural Chemistry, National Taiwan University
| |
Collapse
|
6
|
Elaasser MM, Morsi MK, Galal SM, Abd El-Rahman MK, Katry MA. Antioxidant, anti-inflammatory and cytotoxic activities of the unsaponifiable fraction of extra virgin olive oil. GRASAS Y ACEITES 2020. [DOI: 10.3989/gya.0916192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The health benefits of olive oil are well-known. In this study, the unsaponifiable fraction of extra virgin olive oil (Unsap) was investigated for reducing power capacity, ferric reducing antioxidant power, fer-rous chelating activity and nitric oxide inhibition. The present study was also designed to evaluate the in vitro cytotoxic effect of the Unsap against human carcinoma cells. The anti-inflammatory potential of Unsap has been determined via the inhibition of Human Cyclooxygenases. The results showed that Unsap is efficient for ferric reducing antioxidant power and nitric oxide inhibition. Unsap has a selective effect as anti-inflammatory agent. The results showed moderate to good in vitro antitumor activities of Unsap against human liver, lung and pancreas cancer cells with IC50 ranging from 19.6 to 30.4 μg/mL and good selectivity index (≥ 2). In conclusion, Unsap represents a promising and safe antitumor and antioxidant material that supports the need for further investigation.
Collapse
|
7
|
Petrova ON, Lamarre I, Fasani F, Grillon C, Negrerie M. Soluble Guanylate Cyclase Inhibitors Discovered among Natural Compounds. JOURNAL OF NATURAL PRODUCTS 2020; 83:3642-3651. [PMID: 33290062 DOI: 10.1021/acs.jnatprod.0c00854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Soluble guanylate cyclase (sGC) is the human receptor of nitric oxide (NO) in numerous kinds of cells and produces the second messenger 3',5'-cyclic guanosine monophosphate (cGMP) upon NO binding to its heme. sGC is involved in many cell signaling pathways both under healthy conditions and under pathological conditions, such as angiogenesis associated with tumor growth. Addressing the selective inhibition of the NO/cGMP pathway is a strategy worthwhile to be investigated for slowing down tumoral angiogenesis or for curing vasoplegia. However, sGC inhibitors are lacking investigation. We have explored a chemical library of various natural compounds and have discovered inhibitors of sGC. The selected compounds were evaluated for their inhibition of purified sGC in vitro and sGC in endothelial cells. Six natural compounds, from various organisms, have IC50 in the range 0.2-1.5 μM for inhibiting the NO-activated synthesis of cGMP by sGC, and selected compounds exhibit a quantified antiangiogenic activity using an endothelial cell line. These sGC inhibitors can be used directly as tools to investigate angiogenesis and cell signaling or as templates for drug design.
Collapse
Affiliation(s)
- Olga N Petrova
- Laboratoire d'Optique et Biosciences, INSERM U1182, Ecole Polytechnique, Palaiseau, France
| | - Isabelle Lamarre
- Laboratoire d'Optique et Biosciences, INSERM U1182, Ecole Polytechnique, Palaiseau, France
| | - Fabienne Fasani
- Centre de Biophysique Moléculaire, UPR4301 CNRS, Orléans, France
| | | | - Michel Negrerie
- Laboratoire d'Optique et Biosciences, INSERM U1182, Ecole Polytechnique, Palaiseau, France
| |
Collapse
|
8
|
Singh DN, Srivastava KC, Potsangbam AD, Shrivastava D, Nandini DB, Singh WT, Singh KS. A Case-control Study Comparing and Correlating iNOS Expression among Various Clinicopathological Variants of Oral Leukoplakia and Oral Squamous Cell Carcinoma: A Immunohistochemistry Study. J Pharm Bioallied Sci 2020; 12:S324-S331. [PMID: 33149480 PMCID: PMC7595486 DOI: 10.4103/jpbs.jpbs_96_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 03/06/2020] [Indexed: 12/24/2022] Open
Abstract
Background and Objective The role of inducible nitric oxide synthase (iNOS) has been implicated in various pathological processes including oral carcinoma. Oral premalignancy being its precursor lesion is also expected to show similar pattern. This study attempts to appraise the iNOS expression in various clinicopathological stages and grades of oral leukoplakia (OL) and oral squamous cell carcinoma (OSCC). Materials and Methods A case-control study design was adopted for this study with a total sample of 90 subjects, distributed equally into the three study groups, namely controls, OL, and OSCC. Clinical staging and histopathological grading for both the case groups were performed. Representative tissue samples from all groups were obtained and studied for iNOS expression using immunohistochemistry (IHC). Data were presented in mean and percentages accordingly. Inferential analysis was performed using Kruskal-Wallis test, Mann-Whitney test, and Spearman rank correlation test. Results Significant (P < 0.001) difference was observed among the groups, where 83.3% of OSCC and 73.3% of OL epithelial cells showed iNOS expression. The normal cells did not show up any expression. The expression was found to rise with the progressing clinical stages of OL (P < 0.05) and OSCC (P < 0.01). Similar pattern was observed with respect to advancing dysplasia in OL (P < 0.01) and cell differentiation in OSCC (P < 0.01). Significant positive correlation was found in clinicopathological categories of OL and OSCC. Considering the risk assessment, iNOS staining was found to be significantly raised in advanced cases of OSCC (P < 0.01) and high-risk cases of OL (P < 0.01). Conclusion Increased expression of iNOS can be an early diagnostic marker in OL and as prognostic marker in OSCC.
Collapse
Affiliation(s)
- Deepak N Singh
- Department of Oral Medicine and Radiology, Dental College, Regional Institute of Medical Sciences, Imphal, Manipur, India
| | - Kumar Chandan Srivastava
- Department of Oral & Maxillofacial Surgery & Diagnostic Sciences, College of Dentistry, Jouf University, Sakakah, Kingdom of Saudi Arabia
| | - Aparna D Potsangbam
- Department of Oral Pathology& Microbiology, Dental College, Regional Institute of Medical Sciences, Imphal, Manipur, India
| | - Deepti Shrivastava
- Department of Preventive Dentistry, College of Dentistry, Jouf University, Sakakah, Kingdom of Saudi Arabia
| | | | - Wahengbam T Singh
- Department of Oral Maxillofacial Surgery, Dental College, Regional Institute of Medical Sciences, Imphal, Manipur, India
| | - Koijam S Singh
- Department of Oral Medicine and Radiology, Dental College, Regional Institute of Medical Sciences, Imphal, Manipur, India
| |
Collapse
|
9
|
Tumer TB, Yılmaz B, Ozleyen A, Kurt B, Tok TT, Taskin KM, Kulabas SS. GR24, a synthetic analog of Strigolactones, alleviates inflammation and promotes Nrf2 cytoprotective response: In vitro and in silico evidences. Comput Biol Chem 2018; 76:179-190. [DOI: 10.1016/j.compbiolchem.2018.07.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/13/2018] [Accepted: 07/18/2018] [Indexed: 12/17/2022]
|
10
|
Kulabas SS, Ipek H, Tufekci AR, Arslan S, Demirtas I, Ekren R, Sezerman U, Tumer TB. Ameliorative potential of Lavandula stoechas in metabolic syndrome via multitarget interactions. JOURNAL OF ETHNOPHARMACOLOGY 2018; 223:88-98. [PMID: 29729383 DOI: 10.1016/j.jep.2018.04.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/19/2018] [Accepted: 04/28/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL IMPORTANCE Decoction and infusion prepared from aerial parts of Lavandula stoechas L. (L. stoechas) have been traditionally used as remedy against several components of metabolic syndrome (MetS) and associated disorders including type II diabetes and cardiovascular diseases by Anatolian people. AIM OF THE STUDY The aim is to elucidate the potential ameliorative effects of L. stoechas aqueous extracts on insulin resistance and inflammation models through multitarget in vitro approaches and also to elucidate mechanism of action by analyzing transcriptional and metabolic responses. MATERIALS AND METHODS An aqueous extract was prepared and fractionated to give rise to ethyl acetate (EE) and butanol (BE) extracts. The anti-insulin resistance effects of BE and EE were evaluated on palmitate induced insulin resistance model of H4IIE, C2C12 and 3T3L1 cells by using several metabolic parameters. Specifically, whole genome transcriptome analysis was performed by using microarray over 55.000 genes in control, insulin resistant and EE (25 µg/mL) treated insulin resistant H4IIE cells. Anti-inflammatory effects of both extracts were analyzed in LPS-stimulated RAW264.7 macrophages. RESULTS Both EE and BE at low doses (25-50 µg/mL) significantly decreased hepatic gluconeogenesis in H4IIE cell line by suppressing the expression of PEPCK and G6Pase. In C2C12 myotubes, both extracts increased the insulin stimulated glucose uptake more effectively than metformin. Both extracts decreased the isoproterenol induced lipolysis in 3T3L1 cell line. Moreover, they also effectively increased the expression of lipoprotein lipase protein level in insulin resistant myotubes at low doses. EE increased the protein level of PPARγ and stimulated the activation AKT in insulin resistant H4IIE and C2C12 cell lines. The results obtained from biochemical assays, mRNA/protein studies and whole genome transcriptome analyses were found to be complementary and provided support for the hypothesis that EE might be biologically active against insulin resistance and act through the inhibition of liver gluconeogenesis and AKT activation. Besides, LPS induced inflammation in RAW264.7 macrophages was mainly inhibited by EE through suppression of iNOS/NO signaling, IL1β and COX-2 genes. HPLC-TOF/MS analysis of EE of L. stoechas mainly resulted in caffeic acid, apigenin, luteolin, rosmarinic acid and its methyl ester, 4-hydroxybenzoic acid, vanillic acid, ferrulic acid and salicylic acid. CONCLUSION Data suggest that EE of L. stoechas contains phytochemicals that can be effective in the treatment/prevention of insulin resistance and inflammation. These results validate the traditional use of L. stoechas in Anatolia against several metabolic disorders including metabolic syndrome.
Collapse
Affiliation(s)
- S S Kulabas
- Graduate Program of Biology, Institute of Natural and Applied Sciences, Çanakkale Onsekiz Mart University, 17100 Çanakkale, Turkey
| | - H Ipek
- Graduate Program of Bioengineering, Institute of Natural and Applied Sciences, Çanakkale Onsekiz Mart University, 17100 Çanakkale, Turkey
| | - A R Tufekci
- Department of Chemistry, Faculty of Sciences, Çankırı Karatekin University 18200 Çankırı Turkey
| | - S Arslan
- Department of Biology, Faculty of Art and Science, Pamukkale University, 20160 Denizli, Turkey
| | - I Demirtas
- Department of Chemistry, Faculty of Sciences, Çankırı Karatekin University 18200 Çankırı Turkey
| | - R Ekren
- Graduate Program of Medical Biotechnology, Institute of Health Sciences, Acıbadem Mehmet Ali Aydınlar University, 34752 İstanbul, Turkey
| | - U Sezerman
- Department of Biostatistics and Medical Informatics, Institute of Health Sciences, Acıbadem Mehmet Ali Aydınlar University, 34752 İstanbul, Turkey
| | - T B Tumer
- Department of Molecular Biology and Genetics, Faculty of Art and Science, Çanakkale Onsekiz Mart University, 17100 Çanakkale, Turkey.
| |
Collapse
|
11
|
Anti-inflammatory Effects of Enhanced Recovery Programs on Early-Stage Colorectal Cancer Surgery. World J Surg 2018; 42:953-964. [PMID: 28983734 DOI: 10.1007/s00268-017-4266-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Postoperative ileus (POI) is observed in 20-30% of patients undergoing colorectal cancer surgery, despite enhanced recovery programs (ERPs). Cyclooxygenase (COX)-2 is identified as a key enzyme in POI, but other arachidonic acid pathway enzymes have received little attention despite their potential as selective targets to prevent POI. The objectives were to compare the expression of arachidonic acid metabolism (AAM) enzymes (1) between patients who underwent colorectal cancer surgery and followed an ERP or not (NERP), (2) and between ERP patients who experimented POI or not and (3) to determine the ability of antagonists of these pathways to modulate contractile activity of colonic muscle. METHODS This was a translational study. Main outcome measures were gastrointestinal motility recovery data, mRNA expressions of key enzymes involved in AAM (RT-qPCR) and ex vivo motility values of the circular colon muscle. Twenty-eight prospectively included ERP patients were compared to eleven retrospectively included NERP patients that underwent colorectal cancer surgery. RESULTS ERP reduced colonic mucosal COX-2, microsomal prostaglandin E synthase (mPGES1) and hematopoietic prostaglandin D synthase (HPGDS) mRNA expression. mPGES1 and HPGDS mRNA expression were significantly associated with ERP compliance (respectively, r2 = 0.25, p = 0.002 and r2 = 0.6, p < 0.001). In muscularis propria, HPGDS mRNA expression was correlated with GI motility recovery (p = 0.002). The pharmacological inhibition of mPGES1 increased spontaneous ex vivo contractile activity in circular muscle (p = 0.03). CONCLUSION The effects of ERP on GI recovery are correlated with the compliance of ERP and could be mediated at least in part by mPGES1, HPGDS and COX-2. Furthermore, mPGES1 shows promise as a therapeutic target to further reduce POI duration among ERP patients.
Collapse
|
12
|
Chen PH, Mahmood Q, Mariottini GL, Chiang TA, Lee KW. Adverse Health Effects of Betel Quid and the Risk of Oral and Pharyngeal Cancers. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3904098. [PMID: 29376073 PMCID: PMC5742426 DOI: 10.1155/2017/3904098] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 05/01/2017] [Accepted: 05/18/2017] [Indexed: 02/06/2023]
Abstract
Global reports estimate 600 million betel quid (BQ) chewers. BQ chewing has been demonstrated not only to be a risk factor for cancers of the oral cavity and pharynx and oral potentially malignant disorders (OPMD) but also to cause other cancers and adverse health effects. Herein, we summarized the international comparison data to aid in the understanding of the close relationship between the prevalence of BQ chewing, the occurrence of oral and pharyngeal cancers, and adverse health effects. Potential biomarkers of BQ carcinogens, such as areca nut, alkaloids, and 3-methylnitrosaminopropionitrile (MNPN), are closely associated with human health toxicology. Molecular mechanisms or pathways involving autophagy, hypoxia, COX-2, NF-κB activity, and stemness are known to be induced by BQ ingredients and are very closely related to the carcinogenesis of cancers of oral and pharynx. BQ abuse-related monoamine oxidase (MAO) gene was associated with the occurrence and progress of oral and pharyngeal cancers. In summary, our review article provides important insights into the potential roles of environmental BQ (specific alkaloid biomarkers and nitrosamine products MNPN) and genetic factors (MAO) and offers a basis for studies aiming to reduce or eliminate BQ-related OPMD and oral/pharyngeal cancer incidences in the future.
Collapse
Affiliation(s)
- Ping-Ho Chen
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, No. 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, No. 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-sen University, No. 70 Lienhai Road, Kaohsiung 80424, Taiwan
| | - Qaisar Mahmood
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, Pakistan
| | - Gian Luigi Mariottini
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genova, Viale Benedetto XV 5, 16132 Genova, Italy
| | - Tai-An Chiang
- College of Human Science and Technology, Chung Hwa University of Medical Technology, No. 89, Wenhwa 1st St., Rende Shiang, Tainan 71703, Taiwan
| | - Ka-Wo Lee
- Department of Otolaryngology, Kaohsiung Medical University Hospital, No. 100 Shih-Chuan 1st Road, Kaohsiung 807, Taiwan
- Department of Otolaryngology, College of Medicine, Kaohsiung Medical University, No. 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
| |
Collapse
|
13
|
Eslami SM, Ghasemi M, Bahremand T, Momeny M, Gholami M, Sharifzadeh M, Dehpour AR. Involvement of nitrergic system in anticonvulsant effect of zolpidem in lithium-pilocarpine induced status epilepticus: Evaluation of iNOS and COX-2 genes expression. Eur J Pharmacol 2017; 815:454-461. [DOI: 10.1016/j.ejphar.2017.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 09/27/2017] [Accepted: 10/03/2017] [Indexed: 01/04/2023]
|
14
|
Kapche DWFG, Lekane NM, Kulabas SS, Ipek H, Tok TT, Ngadjui BT, Demirtas I, Tumer TB. Aryl benzofuran derivatives from the stem bark of Calpocalyx dinklagei attenuate inflammation. PHYTOCHEMISTRY 2017; 141:70-79. [PMID: 28577435 DOI: 10.1016/j.phytochem.2017.05.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 05/15/2017] [Accepted: 05/18/2017] [Indexed: 06/07/2023]
Abstract
Calpocalyx dinklagei Harms (Fabaceae) is a tropical medicinal tree, which is indigenous to Western Africa. A phytochemical study of this local plant species from its stem bark has led to the isolation of two previously undescribed aryl benzofuran derivatives, named dinklagein A and B, together with eight known compounds. Their chemical structures were elucidated by use of extensive spectroscopic methods (IR, HREI-MS and 1D and 2D NMR). Among all isolates, dinklagein A displayed remarkably potent inhibitory activity against the production of nitric oxide (NO) in the lipopolysaccharide (LPS) induced RAW264.7 macrophages. SAR and molecular docking investigations on iNOS and previously undescribed compounds (dinklagein A and B) supported experimental data. Furthermore, dinklagein A dose dependently suppressed the LPS-stimulated iNOS expression at both mRNA and protein level. It also attenuated IL-1β release, mRNA expressions of IL-1β and COX-2 at low doses. These results suggest that dinklagein A can be developed as natural, multi-target agent against several inflammatory diseases.
Collapse
Affiliation(s)
- Deccaux W F G Kapche
- University of Yaoundé I, P. O. Box +(237) 47, Yaoundé, Cameroon; Çankırı Karatekin University, Faculty of Sciences, Department of Chemistry, 18200, Çankırı, Turkey.
| | - Nadège M Lekane
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, P. O. Box +(237) 812, Yaoundé, Cameroon
| | - Seda S Kulabas
- Çanakkale Onsekiz Mart University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, 17100, Çanakkale, Turkey
| | - Hande Ipek
- Çanakkale Onsekiz Mart University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, 17100, Çanakkale, Turkey
| | - Tugba T Tok
- Gaziantep University, Faculty of Arts and Sciences, Department of Chemistry, 27310, Şehitkamil, Gaziantep, Turkey.
| | - Bonaventure T Ngadjui
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, P. O. Box +(237) 812, Yaoundé, Cameroon.
| | - Ibrahim Demirtas
- Çankırı Karatekin University, Faculty of Sciences, Department of Chemistry, 18200, Çankırı, Turkey.
| | - Tugba B Tumer
- Çanakkale Onsekiz Mart University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, 17100, Çanakkale, Turkey.
| |
Collapse
|
15
|
Del-Bel E, Bortolanza M, Dos-Santos-Pereira M, Bariotto K, Raisman-Vozari R. l-DOPA-induced dyskinesia in Parkinson's disease: Are neuroinflammation and astrocytes key elements? Synapse 2016; 70:479-500. [DOI: 10.1002/syn.21941] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/06/2016] [Accepted: 09/06/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Elaine Del-Bel
- Department of MFPB-Physiology; FORP, Campus USP, University of São Paulo; Av. Café, s/no Ribeirão Preto SP 14040-904 Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); São Paulo Brazil
- Department of Physiology; FMRP; São Paulo Brazil
- Department of Neurology and Behavioral Neuroscience; FMRP, Campus USP, University of São Paulo; Av. Bandeirantes 13400 Ribeirão Preto SP 14049-900 Brazil
| | - Mariza Bortolanza
- Department of MFPB-Physiology; FORP, Campus USP, University of São Paulo; Av. Café, s/no Ribeirão Preto SP 14040-904 Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); São Paulo Brazil
| | - Maurício Dos-Santos-Pereira
- Department of MFPB-Physiology; FORP, Campus USP, University of São Paulo; Av. Café, s/no Ribeirão Preto SP 14040-904 Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); São Paulo Brazil
- Department of Physiology; FMRP; São Paulo Brazil
| | - Keila Bariotto
- Department of MFPB-Physiology; FORP, Campus USP, University of São Paulo; Av. Café, s/no Ribeirão Preto SP 14040-904 Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); São Paulo Brazil
- Department of Neurology and Behavioral Neuroscience; FMRP, Campus USP, University of São Paulo; Av. Bandeirantes 13400 Ribeirão Preto SP 14049-900 Brazil
| | - Rita Raisman-Vozari
- INSERM UMR 1127, CNRS UMR 7225, UPMC; Thérapeutique Expérimentale de la Neurodégénérescence, Hôpital de la Salpetrière-ICM (Institut du cerveau et de la moelle épinière); Paris France
| |
Collapse
|
16
|
Teng L, Bennett E, Cai C. Preconditioning c-Kit-positive Human Cardiac Stem Cells with a Nitric Oxide Donor Enhances Cell Survival through Activation of Survival Signaling Pathways. J Biol Chem 2016; 291:9733-47. [PMID: 26940876 DOI: 10.1074/jbc.m115.687806] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Indexed: 12/20/2022] Open
Abstract
Cardiac stem cell therapy has shown very promising potential to repair the infarcted heart but is severely limited by the poor survival of donor cells. Nitric oxide (NO) has demonstrated cytoprotective properties in various cells, but its benefits are unknown specifically for human cardiac stem cells (hCSCs). Therefore, we investigated whether pretreatment of hCSCs with a widely used NO donor, diethylenetriamine nitric oxide adduct (DETA-NO), promotes cell survival. Results from lactate dehydrogenase release assays showed a dose- and time-dependent attenuation of cell death induced by oxidative stress after DETA-NO preconditioning; this cytoprotective effect was abolished by the NO scavenger. Concomitant up-regulation of several cell signaling molecules after DETA-NO preconditioning was observed by Western blotting, including elevated phosphorylation of NRF2, NFκB, STAT3, ERK, and AKT, as well as increased protein expression of HO-1 and COX2. Furthermore, pharmaceutical inhibition of ERK, STAT3, and NFκB activities significantly diminished NO-induced cytoprotection against oxidative stress, whereas inhibition of AKT or knockdown of NRF2 only produced a minor effect. Blocking PI3K activity or knocking down COX2 expression did not alter the protective effect of DETA-NO on cell survival. The crucial roles of STAT3 and NFκB in NO-mediated signaling pathways were further confirmed by stable expression of gene-specific shRNAs in hCSCs. Thus, preconditioning hCSCs with DETA-NO promotes cell survival and resistance to oxidative stress by activating multiple cell survival signaling pathways. These results will potentially provide a simple and effective strategy to enhance survival of hCSCs after transplantation and increase their efficacy in repairing infarcted myocardium.
Collapse
Affiliation(s)
- Lei Teng
- From the Center for Cardiovascular Sciences and Department of Medicine, Albany Medical College and
| | - Edward Bennett
- Division of Cardiothoracic Surgery, Albany Medical Center, Albany, New York 12208
| | - Chuanxi Cai
- From the Center for Cardiovascular Sciences and Department of Medicine, Albany Medical College and
| |
Collapse
|
17
|
Sil S, Ghosh T, Ghosh R. NMDA receptor is involved in neuroinflammation in intracerebroventricular colchicine-injected rats. J Immunotoxicol 2016; 13:474-89. [DOI: 10.3109/1547691x.2015.1130760] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Susmita Sil
- Department of Physiology, University College of Science and Technology, University of Calcutta, Kolkata, India
| | - Tusharkanti Ghosh
- Department of Physiology, University College of Science and Technology, University of Calcutta, Kolkata, India
| | - Rupsa Ghosh
- Department of Physiology, University College of Science and Technology, University of Calcutta, Kolkata, India
| |
Collapse
|
18
|
Lee KS, Lee DH, Kwon YS, Chun SY, Nam KS. Deep-sea water inhibits metastatic potential in HT-29 human colorectal adenocarcinomas via MAPK/NF-κB signaling pathway. BIOTECHNOL BIOPROC E 2014. [DOI: 10.1007/s12257-014-0210-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
19
|
Murata T, Kohno S, Ito C, Itoigawa M, Sugiura A, Hikita K, Kaneda N. Inhibitory effect of carbazolequinone derivatives on lipopolysaccharide and interferon-γ-induced nitric oxide production in mouse macrophage RAW264.7 cells. J Pharm Pharmacol 2013; 65:1204-13. [DOI: 10.1111/jphp.12087] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Accepted: 04/24/2013] [Indexed: 01/02/2023]
Abstract
Abstract
Objectives
The aim of this study was to examine the mechanism underlying the inhibitory effect of our synthesized carbazolequinone derivatives on nitric oxide (NO) production in activated macrophages.
Methods
Lipopolysaccharide (LPS) and interferon-γ (IFN-γ)-stimulated RAW264.7 macrophages were treated with carbazolequinone derivatives. The NO and prostaglandin E2 (PGE2) levels in cell culture supernatants fractions were measured by Greiss and ELISA assay, respectively. The expression of inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2) was assessed by the real-time RT-PCR method. Nuclear factor kappa B (NF-κB) activation was detected by an NF-κB-dependent luciferase reporter assay.
Key findings
Our synthesized carbazolequinone derivatives (7-methoxy-2-methylcarbazole-1,4-quinone, 6-methoxy-2-methylcarbazole-1,4-quinone and 6-chloro-2-methylcarbazole-1,4-quinone) significantly inhibited LPS/IFN-γ-induced NO production and iNOS expression in RAW264.7 cells. They also inhibited the LPS/IFN-γ-mediated induction of COX-2 expression and PGE2 production. In addition, the LPS/IFN-γ-induced transcription activity of NF-κB was attenuated. Using the RAW264.7-tsAM5NE co-culture system, we found that these carbazolequinone derivatives protected neuronally differentiated tsAM5NE cells from NO-induced cell death by inhibiting the production of NO.
Conclusions
These results suggest that the three carbazolequinone derivatives inhibit LPS/IFN-γ-induced NO production via iNOS and COX-2 downregulation due to NF-κB inhibition. Therefore, these three carbazolequinone derivatives may be useful for developing a new drug against NO-mediated neurodegenerative diseases.
Collapse
Affiliation(s)
- Tomiyasu Murata
- Department of Analytical Neurobiology, Meijo University, Tempaku, Nagoya, Japan
| | - Susumu Kohno
- Division of Oncology and Molecular Biology, Cancer and Stem Cell Research Program, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa, Japan
| | - Chihiro Ito
- Department of Medicinal Chemistry, Faculty of Pharmacy, Meijo University, Tempaku, Nagoya, Japan
| | - Masataka Itoigawa
- School of Sport and Health Science, Tokai Gakuen University, Tempaku, Nagoya, Japan
| | - Ayumi Sugiura
- Department of Analytical Neurobiology, Meijo University, Tempaku, Nagoya, Japan
| | - Kiyomi Hikita
- Department of Analytical Neurobiology, Meijo University, Tempaku, Nagoya, Japan
| | - Norio Kaneda
- Department of Analytical Neurobiology, Meijo University, Tempaku, Nagoya, Japan
| |
Collapse
|
20
|
Salvemini D, Kim SF, Mollace V. Reciprocal regulation of the nitric oxide and cyclooxygenase pathway in pathophysiology: relevance and clinical implications. Am J Physiol Regul Integr Comp Physiol 2013; 304:R473-87. [PMID: 23389111 DOI: 10.1152/ajpregu.00355.2012] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The nitric oxide (NO) and cyclooxygenase (COX) pathways share a number of similarities. Nitric oxide is the mediator generated from the NO synthase (NOS) pathway, and COX converts arachidonic acid to prostaglandins, prostacyclin, and thromboxane A(2). Two major forms of NOS and COX have been identified to date. The constitutive isoforms critically regulate several physiological states. The inducible isoforms are overexpressed during inflammation in a variety of cells, producing large amounts of NO and prostaglandins, which may underlie pathological processes. The cross-talk between the COX and NOS pathways was initially reported by Salvemini and colleagues in 1993, when they demonstrated in a series of in vitro and in vivo studies that NO activates the COX enzymes to produce increased amounts of prostaglandins. Those studies led to the concept that COX enzymes represent important endogenous "receptor" targets for amplifying or modulating the multifaceted roles of NO in physiology and pathology. Since then, numerous studies have furthered our mechanistic understanding of these interactions in pathophysiological settings and delineated potential clinical outcomes. In addition, emerging evidence suggests that the canonical nitroxidative species (NO, superoxide, and/or peroxynitrite) modulate biosynthesis of prostaglandins through non-COX-related pathways. This article provides a comprehensive state-of-the art overview in this area.
Collapse
Affiliation(s)
- Daniela Salvemini
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, 1402 South Grand Blvd., St. Louis, MO 63104, USA.
| | | | | |
Collapse
|
21
|
Wu CH, Uen YH, Ho CT, Tseng YT, Liu TZ, Chiou JF, Leung SW. Constitutive Overexpression of Bcl-2, Survivin and ER Stress Chaperone GRP-78 Confers Intrinsic Radioresistance in Human Hepatocellular Carcinoma Cells: Insight into the Mechanistic Pathways Involved. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jct.2013.42a048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
22
|
Eberstål S, Badn W, Fritzell S, Esbjörnsson M, Darabi A, Visse E, Siesjö P. Inhibition of cyclooxygenase-2 enhances immunotherapy against experimental brain tumors. Cancer Immunol Immunother 2012; 61:1191-9. [PMID: 22213142 PMCID: PMC11029214 DOI: 10.1007/s00262-011-1196-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Accepted: 12/20/2011] [Indexed: 01/09/2023]
Abstract
Glioblastoma multiforme is the most common and aggressive malignant brain tumor in humans, and the prognosis is very poor despite conventional therapy. Immunotherapy represents a novel treatment approach, but the effect is often weakened by release of immune-suppressive molecules such as prostaglandins. In the current study, we investigated the effect of immunotherapy with irradiated interferon-γ (IFN-γ)-secreting tumor cells and administration of the selective cyclooxygenase-2 (COX-2) inhibitor parecoxib as treatment of established rat brain tumors. COX-2 inhibition and immunotherapy significantly enhanced the long-term cure rate (81% survival) compared with immunotherapy alone (19% survival), and there was a significant increase in plasma IFN-γ levels in animals treated with the combined therapy, suggesting a systemic T helper 1 immune response. COX-2 inhibition alone, however, did neither induce cure nor prolonged survival. The tumor cells were identified as the major source of COX-2 both in vivo and in vitro, and unmodified tumor cells produced prostaglandin E(2) in vitro, while the IFN-γ expressing tumor cells secreted significantly lower levels. In conclusion, we show that immunotherapy of experimental brain tumors is greatly potentiated when combined with COX-2 inhibition. Based on our results, the clinically available drug parecoxib may be added to immunotherapy against human brain tumors. Furthermore, the discovery that IFN-γ plasma levels can be used to determine the ongoing in vivo immune response has translational potential.
Collapse
Affiliation(s)
- Sofia Eberstål
- Glioma Immunotherapy Group, The Rausing Laboratory, BMC D14, Divison of Neurosurgery, Department of Clinical Sciences, Lund University, Lund, Sweden.
| | | | | | | | | | | | | |
Collapse
|
23
|
Zhang QH, Zu XY, Cao RX, Liu JH, Mo ZC, Zeng Y, Li YB, Xiong SL, Liu X, Liao DF, Yi GH. An involvement of SR-B1 mediated PI3K-Akt-eNOS signaling in HDL-induced cyclooxygenase 2 expression and prostacyclin production in endothelial cells. Biochem Biophys Res Commun 2012; 420:17-23. [PMID: 22390933 DOI: 10.1016/j.bbrc.2012.02.103] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 02/17/2012] [Indexed: 10/28/2022]
Abstract
It is well-known that sphingosine-1-phosphate (S1P), the phospholipid content of HDL, binding to S1P receptors can raise COX-2 expression and PGI(2) release through p38MAPK/CREB pathway. In the present study we assess the action of SR-B1 initiated PI3K-Akt-eNOS signaling in the regulation of COX-2 expression and PGI(2) production in response to HDL. We found that apoA1 could increase PGI(2) release and COX-2 expression in ECV 304 endothelial cells. Furthermore, SR-B1 was found to be involved in HDL induced up-regulation of COX-2 and PGI(2). Over-expressed SR-B1 did not significantly increase the expression of COX-2 and the PGI(2) levels, but knock-down of SR-B1 by siRNA could significantly attenuate COX-2 expression and PGI(2) release together with p38MAPK and CREB phosphorylation. Consistently, the declines of p-p38MAPK, p-CREB, COX-2 and PGI(2) were also observed after incubation with LY294002 (25μmol/L; PI3K special inhibitor) or L-NAME (50μmol/L; eNOS special inhibitor). In addition, we demonstrated the increases of PGI(2) release, COX-2 expression and p38MAPK phosphorylation, when nitric oxide level was raised through the incubation of L-arginine (10 or 20nmol/L) in endothelial cells. Taking together, our data support that SR-B1 mediated PI3K-Akt-eNOS signaling was involved in HDL-induced COX-2 expression and PGI(2) release in endothelial cells.
Collapse
Affiliation(s)
- Qing-Hai Zhang
- Clinical Research Institution, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
The shunting of arachidonic acid metabolism to 5-lipoxygenase and cytochrome p450 epoxygenase antagonizes the anti-cancer effect of cyclooxygenase-2 inhibition in head and neck cancer cells. Cell Oncol (Dordr) 2011; 35:1-8. [DOI: 10.1007/s13402-011-0051-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2011] [Indexed: 12/22/2022] Open
|
25
|
Paduch R, Kandefer-Szerszeń M. Nitric Oxide (NO) and Cyclooxygenase-2 (COX-2) Cross-Talk in Co-Cultures of Tumor Spheroids with Normal Cells. CANCER MICROENVIRONMENT 2011; 4:187-98. [PMID: 21909878 PMCID: PMC3170423 DOI: 10.1007/s12307-011-0063-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Accepted: 02/09/2011] [Indexed: 12/20/2022]
Abstract
Cyclooxygenases (COX), prostaglandin E2 (PGE2) and nitric oxide (NO) are believed to be some of the most important factors related to colon cancer growth and metastasis. In this study, we aimed to investigate the associations between COX-2, PGE2 and NO in co-cultures of human colon cancer spheroids obtained from different tumor grades with normal human colonic epithelium and myofibroblast monolayers. L-arginine (2 mM), a substrate for nitric oxide synthases (NOS), decreased COX-2 and PGE2 levels, while NG-nitro-L-arginine methyl ester (L-NAME) (2 mM), a NOS inhibitor, had no influence on COX-2 and PGE2 levels but limited tumor cell motility. NS398 (75 μM), a selective COX-2 inhibitor, had no significant influence on NO level but decreased motility of tumor cells. COX-2, PGE2 and NO levels depended on the tumor grade of the cells, being the highest in Duke’s stage III colon carcinoma. Summing up, we showed that addition of L-arginine at doses which did not stimulate NO level caused a significant decrease in COX-2 and PGE2 amounts in co-cultures of colon tumor spheroids with normal epithelial cells and myofibroblasts. Any imbalances in NO level caused by exogenous factors influence COX-2 and PGE2 amounts depending on the kind of cells, their reciprocal interactions and the local microenvironmental conditions. The knowledge of these effects may be useful in limiting colon carcinoma progression and invasion.
Collapse
Affiliation(s)
- Roman Paduch
- Department of Virology and Immunology, Institute of Microbiology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland,
| | | |
Collapse
|
26
|
Park SW, Kim HS, Hah JW, Jeong WJ, Kim KH, Sung MW. Celecoxib inhibits cell proliferation through the activation of ERK and p38 MAPK in head and neck squamous cell carcinoma cell lines. Anticancer Drugs 2010; 21:823-30. [DOI: 10.1097/cad.0b013e32833dada8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
27
|
Park SW, Kim HS, Hah JH, Kim KH, Heo DS, Sung MW. Differential effects between cyclooxygenase-2 inhibitors and siRNA on vascular endothelial growth factor production in head and neck squamous cell carcinoma cell lines. Head Neck 2010; 32:1534-43. [DOI: 10.1002/hed.21362] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
|
28
|
Chanvorachote P, Nimmannit U, Lu Y, Talbott S, Jiang BH, Rojanasakul Y. Nitric oxide regulates lung carcinoma cell anoikis through inhibition of ubiquitin-proteasomal degradation of caveolin-1. J Biol Chem 2009; 284:28476-28484. [PMID: 19706615 DOI: 10.1074/jbc.m109.050864] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Anoikis, a detachment-induced apoptosis, is a principal mechanism of inhibition of tumor cell metastasis. Tumor cells can acquire anoikis resistance which is frequently observed in metastatic lung cancer. This phenomenon becomes an important obstacle of efficient cancer therapy. Recently, signaling mediators such as caveolin-1 (Cav-1) and nitric oxide (NO) have garnered attention in metastasis research; however, their role and the underlying mechanisms of metastasis regulation are largely unknown. Using human lung carcinoma H460 cells, we show that NO impairs the apoptotic function of the cells after detachment. The NO donors sodium nitroprusside and diethylenetriamine NONOate inhibit detachment-induced apoptosis, whereas the NO inhibitors aminoguanidine and 2-(4-carboxyphenyl) tetramethylimidazoline-1-oxyl-3-oxide promote this effect. Resistance to anoikis in H460 cells is mediated by Cav-1, which is significantly down-regulated after cell detachment through a non-transcriptional mechanism involving ubiquitin-proteasomal degradation. NO inhibits this down-regulation by interfering with Cav-1 ubiquitination through a process that involves protein S-nitrosylation, which prevents its proteasomal degradation and induction of anoikis by cell detachment. These findings indicate a novel pathway for NO regulation of Cav-1, which could be a key mechanism of anoikis resistance in tumor cells.
Collapse
Affiliation(s)
- Pithi Chanvorachote
- Department of Physiology, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Ubonthip Nimmannit
- Pharmaceutical Technology (International) Program, Chulalongkorn University, Bangkok 10330, Thailand
| | - Yongju Lu
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, West Virginia 26506
| | - Siera Talbott
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, West Virginia 26506; Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, West Virginia 26506
| | - Bing-Hua Jiang
- Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, West Virginia 26506
| | - Yon Rojanasakul
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, West Virginia 26506; Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, West Virginia 26506.
| |
Collapse
|
29
|
Jolly AJ, Wild CP, Hardie LJ. Sodium deoxycholate causes nitric oxide mediated DNA damage in oesophageal cells. Free Radic Res 2009; 43:234-40. [PMID: 19156554 DOI: 10.1080/10715760802684211] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Patients with chronic gastro-oesophageal reflux disease experience the reflux of acid and bile into the distal oesophagus. The secondary bile salt sodium deoxycholate (NDC) is implicated in the induction of mucosal injury during reflux episodes. This study hypothesized that NDC damages DNA in oesophageal cells by an oxidative mechanism. In the oesophageal cell line HET1-A, increased production of nitric oxide (NO) was measured in NDC-treated cells. Protection from DNA strand breaks induced by NDC (10 microm) was observed in cells coincubated with the nitric oxide scavenger C-PTIO (p<0.012) or pre-incubated with the NO synthase inhibitor L-NAME (p<0.009) or the NFkappaB inhibitor, TPCK (p<0.036). Collectively these data implicate the involvement of NFkappaB and nitric oxide synthase in the DNA damage induced by NDC in oesophageal cells. In conclusion, NDC-driven NO production may play an important role in inducing DNA damage during episodes of gastro-oesophageal reflux and thereby contribute to reflux-related carcinogenesis.
Collapse
Affiliation(s)
- Arthur J Jolly
- Leeds Institute of Genetics, Health and Therapeutics, University of Leeds, UK
| | | | | |
Collapse
|
30
|
Reese J, O'Mara PW, Poole SD, Brown N, Tolentino C, Eckman DM, Aschner JL. Regulation of the fetal mouse ductus arteriosus is dependent on interaction of nitric oxide and COX enzymes in the ductal wall. Prostaglandins Other Lipid Mediat 2008; 88:89-96. [PMID: 19049898 DOI: 10.1016/j.prostaglandins.2008.11.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Accepted: 11/04/2008] [Indexed: 12/16/2022]
Abstract
Nitric oxide (NO) and cyclooxygenase (COX)-derived prostaglandins are critical regulators of the fetal ductus arteriosus. To examine the interaction of these pathways within the ductus wall, the ductus arteriosus of term and preterm fetal mice was evaluated by pressurized myography. The isolated preterm ductus was more sensitive to NOS inhibition than at term. Sequential NOS and COX inhibition caused 36% constriction of the preterm ductus regardless of drug order. In contrast, constriction of the term ductus was dependent on the sequence of inhibition; NOS inhibition prior to COX inhibition produced greater constriction than when inhibitors were given in reverse order (36+/-6% versus 23+/-5%). Selective COX-1 or COX-2 inhibition prior to N(G)-nitro-l-arginine methyl ester (l-NAME) induced the expected degree of constriction. However, NOS inhibition followed by selective COX-2 inhibition caused unexpected ductal dilation. These findings are consistent with NO-induced activation of COX in the ductus arteriosus wall and the production of a COX-2-derived constrictor prostanoid that contributes to the balance of vasoactive forces that maintain fetal ductus arteriosus tone.
Collapse
Affiliation(s)
- Jeff Reese
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232-0656, USA.
| | | | | | | | | | | | | |
Collapse
|
31
|
Chiang SL, Chen PH, Lee CH, Ko AMS, Lee KW, Lin YC, Ho PS, Tu HP, Wu DC, Shieh TY, Ko YC. Up-regulation of inflammatory signalings by areca nut extract and role of cyclooxygenase-2 -1195G>a polymorphism reveal risk of oral cancer. Cancer Res 2008; 68:8489-98. [PMID: 18922923 DOI: 10.1158/0008-5472.can-08-0823] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Because the mRNA expression of cyclooxygenase-2 (COX-2) is up-regulated by arecoline in human gingival fibroblasts, as shown in our previous study, we further investigated the mRNA expression level of COX-2 and its upstream effectors in three oral epithelial carcinoma cell lines (KB, SAS, and Ca9-22) by using areca nut extract (ANE) and saliva-reacted ANE (sANE). A case-control study of 377 oral squamous cell carcinoma (OSCC) patients and 442 controls was conducted to evaluate the gene-environment interaction between COX-2 promoter polymorphisms and substance use of alcohol, betel quid, and cigarettes (ABC) in risk of OSCC. The heterogeneous characteristics of the oral site and the COX-2 -1195G>A polymorphism in these cell lines showed diverse inflammatory response (KB>>Ca9-22>SAS) after 24-hour ANE/sANE treatments, and the COX-2 up-regulation might be mostly elicited from alternative nuclear factor-kappaB activation. In the case-control study, betel chewing [adjusted odds ratios (aOR), 42.2] posed a much higher risk of OSCC than alcohol drinking and cigarette smoking (aORs, 2.4 and 1.8, respectively), whereas the COX-2 -1195A/A homozygote presented a potential genetic risk (OR, 1.55). The strongest joint effect for OSCC was seen in betel chewers with -1195A/A homozygote (aOR, 79.44). In the non-betel chewing group, the -1195A/G and A/A genotypes together with the combined use of alcohol and cigarettes increased risk to 15.1-fold and 32.1-fold, respectively, compared with the G/G genotype without substance use. Taken together, these findings illustrate a valuable insight into the potential role of the COX-2 promoter region in contributing to the development of betel-related OSCC, including ANE/sANE-induced transcriptional effects and enhanced joint effects of COX-2 -1195A allele with substance use of ABC.
Collapse
Affiliation(s)
- Shang-Lun Chiang
- Graduate Institute of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Chung-Ho Memorial Hospital, Kaohsiung, Taiwan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Ekspresja niektórych molekularnych markerów immunohistochemicznych i ocena ich znaczenia prognostycznego w rakach płaskonabłonkowych jamy ustnej i wargi. Otolaryngol Pol 2008; 62:175-81. [DOI: 10.1016/s0030-6657(08)70236-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
33
|
Čokić VP, Schechter AN. Chapter 7 Effects of Nitric Oxide on Red Blood Cell Development and Phenotype. Curr Top Dev Biol 2008; 82:169-215. [DOI: 10.1016/s0070-2153(07)00007-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
34
|
|
35
|
Morbidelli L, Donnini S, Ziche M. Nitric Oxide in Tumor Angiogenesis. Angiogenesis 2008. [DOI: 10.1007/978-0-387-71518-6_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
36
|
Wang D, Lu S, Dong Z. Regulation of TGF-beta1 gene transcription in human prostate cancer cells by nitric oxide. Prostate 2007; 67:1825-33. [PMID: 17941092 DOI: 10.1002/pros.20669] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Overexpression of transforming growth factor (TGF)-beta1 is associated with advanced prostate cancer. Our previous studies showed an inverse correlation between the expressions of TGF-beta1 and inducible nitric oxide synthase (iNOS) in prostatic tumors in mice. The purpose of this study was to investigate regulation of TGF-beta1 expression in human prostate cancer cells by nitric oxide (NO). METHODS Expression of TGF-beta1 in the three well-characterized lines of human prostate cancer cells (PC-3MM2, LNCaP, and DU145) was determined by using the enzyme-linked immunoabsorbance assay (ELISA), real-time reverse-transcriptase PCR (RT-PCR), nuclear run-on, and promoter activity analyses. RESULTS Expression of both TGF-beta1 protein and mRNA was inhibited in both dose- and time-dependent manners by NO donors sodium nitroprusside (SNP), S-nitroso-N-acetylpenicilamine (SNAP), S-nitrosoglutathione (GSNO), and (+/-)-(E)-methyl-2-[(E)-hydroxyimino]-5-nitro-6-methoxy-3-hexeneamide (NOR-1) and by transfection of iNOS. The inhibitory effects of SNP and iNOS on TGF-beta1 expression were reduced in cells treated with NO scavengers N-dithiocarboxysarcosine (DTCS), 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (PTIO), and hemoglobin, or with the iNOS inhibitor N-methyl-arginine (NMA). SNP downregulated the in vitro transcription of TGF-beta1 mRNA, inhibited TGF-beta1 promoter activity, but had no significant effects on TGF-beta1 mRNA stability. CONCLUSION These results show that NO downregulates TGF-beta1 expression in prostate cancer cells at transcription level by suppressing the de novo synthesis of TGF-beta1 mRNA.
Collapse
Affiliation(s)
- Daren Wang
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
| | | | | |
Collapse
|
37
|
Myoung H. Anti-Cancer Effects of a Selective Cox-2 Inhibitor, Celecoxib. J Oral Maxillofac Surg 2007. [DOI: 10.1016/j.joms.2007.06.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
38
|
Lee TS, Jeon YT, Kim JW, Park NH, Kang SB, Lee HP, Song YS. Lack of association of the cyclooxygenase-2 and inducible nitric oxide synthase gene polymorphism with risk of cervical cancer in Korean population. Ann N Y Acad Sci 2007; 1095:134-42. [PMID: 17404026 DOI: 10.1196/annals.1397.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Currently, many studies have shown that nitric oxide (NO) and prostaglandin (PG) are main inflammatory mediators involved in a variety of pathophysiological processes including inflammation and carcinogenesis. In this article, we explored the possible association of polymorphisms, of two representative inflammatory mediators, with the risk for cervical cancer. This study included 176 cases of histologically confirmed invasive cervical cancer, and 172 healthy controls. Allele frequency of 12 single-nucleotide polymorphisms (SNPs) of cyclooxygenase-2 (COX-2) and COX5 of the inducible nitric oxide synthase (iNOS) genes in 43 different normal populations were analyzed. We found that 14 of 17 showed a monomorphic or minimal minor allele frequency; therefore, we did not continue with additional analysis. Three SNPs (2 for COX-2, 1 for iNOS) were chosen for the study. Genotyping of three SNPs (SNP-rs5275 in the untranslated region of exon 10 and rs5277 in the coding region of exon 3 of COX-2, and iNOS Ser(608)Leu allele C/T polymorphism within exon 16 of the iNOS reductase domain) was performed. No significant increase was found in any of the genotypes of the COX-2 or iNOS in the cancer group. We investigated the possible correlation between the genotypes and the clinicopathologic parameters of cervical cancer. No significant association of the genotypes studied was found with respect to clinical stage, lymph node (LN) status, histologic type, or parametrial invasion. Our data did not reveal an association between COX-2 and iNOS polymorphisms with cervical cancer in Korean women.
Collapse
Affiliation(s)
- Taek Sang Lee
- Department of Obstetrics and Gynecology, Seoul National University, Seoul, 110-744, Korea
| | | | | | | | | | | | | |
Collapse
|
39
|
Donnini S, Finetti F, Solito R, Terzuoli E, Sacchetti A, Morbidelli L, Patrignani P, Ziche M. EP2 prostanoid receptor promotes squamous cell carcinoma growth through epidermal growth factor receptor transactivation and iNOS and ERK1/2 pathways. FASEB J 2007; 21:2418-30. [PMID: 17384145 DOI: 10.1096/fj.06-7581com] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In squamous cell carcinoma, the levels of nitric oxide (NO) derived from inducible NO synthase (iNOS) and prostaglandin E2 (PGE2) derived from cyclooxygenase-2 (COX-2) originated from tumor cells or tumor-associated inflammatory cells have been reported to correlate with tumor growth, metastasis, and angiogenesis. The present study examined the role of the iNOS signaling pathway in PGE2-mediated tumor invasiveness and proliferation in squamous cell carcinoma, A431, and SCC-9 cells. Cell invasion and proliferation promoted by PGE2 were blocked by iNOS silencing RNA or iNOS/guanylate cyclase (GC) pharmacological inhibition. Consistently, iNOS-GC pathway inhibitors blocked mitogen-activated protein kinase-ERK1/2 phosphorylation, which was required to mediate PGE2 functions. In vivo, in A431 cells implanted in nude mice, GC inhibition also decreased the tumor proliferation index and ERK1/2 activation. PGE2 effects were confined to the selective stimulation of the EP2 receptor subtype, leading to epidermal growth factor receptor (EGFR) transactivation via protein kinase A (PKA) and c-Src activation. EP2-mediated ERK1/2 activation and cell functions were abolished by inhibitors of PKA, c-Src, and EGFR, as well as by inhibiting iNOS pathway. Silencing of iNOS also impaired EGFR-induced ERK1/2 phosphorylation. These results indicate that iNOS/GC signaling is a downstream player in the control of EP2/EGFR-mediated tumor cell proliferation and invasion.
Collapse
Affiliation(s)
- Sandra Donnini
- Department of Molecular Biology, Pharmacology Angiogenesis Lab., University of Siena, Via Aldo Moro, 2, 53100, Siena, Italy
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Mocellin S, Bronte V, Nitti D. Nitric oxide, a double edged sword in cancer biology: Searching for therapeutic opportunities. Med Res Rev 2007; 27:317-52. [PMID: 16991100 DOI: 10.1002/med.20092] [Citation(s) in RCA: 321] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nitric oxide (NO) is a pleiotropic molecule critical to a number of physiological and pathological processes. The last decade has witnessed major advances in dissecting NO biology and its role in cancer pathogenesis. However, the complexity of the interactions between different levels of NO and several aspects of tumor development/progression has led to apparently conflicting findings. Furthermore, both anti-NO and NO-based anticancer strategies appear effective in several preclinical models. This paradoxical dichotomy is leaving investigators with a double challenge: to determine the net impact of NO on cancer behavior and to define the therapeutic role of NO-centered anticancer strategies. Only a comprehensive and dynamic view of the cascade of molecular and cellular events underlying tumor biology and affected by NO will allow investigators to exploit the potential antitumor properties of drugs interfering with NO metabolism. Available data suggest that NO should be considered neither a universal target nor a magic bullet, but rather a signal transducer to be modulated according to the molecular makeup of each individual cancer and the interplay with conventional antineoplastic agents.
Collapse
Affiliation(s)
- Simone Mocellin
- Department of Oncological and Surgical Sciences, School of Medicine, University of Padova, Padova, Italy.
| | | | | |
Collapse
|
41
|
Abstract
Nitric oxide (NO) and nitric oxide synthases are ubiquitous in malignant tumours and are known to exert both pro- and anti-tumour effects. We summarize our current understanding of the role of NO in tumour progression, especially in relation to angiogenesis and vascular functions. We also discuss potential strategies for cancer treatment that modulate NO production and/or its downstream signalling pathways.
Collapse
Affiliation(s)
- Dai Fukumura
- Edwin L. Steele Laboratory, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.
| | | | | |
Collapse
|
42
|
Yin MB, Li ZR, Tóth K, Cao S, Durrani FA, Hapke G, Bhattacharya A, Azrak RG, Frank C, Rustum YM. Potentiation of irinotecan sensitivity by Se-methylselenocysteine in an in vivo tumor model is associated with downregulation of cyclooxygenase-2, inducible nitric oxide synthase, and hypoxia-inducible factor 1alpha expression, resulting in reduced angiogenesis. Oncogene 2006; 25:2509-19. [PMID: 16518418 DOI: 10.1038/sj.onc.1209073] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Until recently, the use of Se-methylselenocysteine (MSC) as selective modulator of the antitumor activity and selectivity of anticancer drugs including irinotecan, a topoisomerase I poison, had not been evaluated. Therapeutic synergy between MSC and irinotecan was demonstrated by our laboratory in mice bearing human squamous cell carcinoma of the head and neck tumors. In FaDu xenografts, a poorly differentiated tumor-expressing mutant p53, the cure rate was increased from 30% with irinotecan alone to 100% with the combination of irinotecan and MSC. Cellular exposure to cytotoxic concentration of SN-38, the active metabolite of irinotecan (0.1 microM) alone and in combination with noncytotoxic concentration of MSC (10 microM) did not result in additional enhancement of chk2 phosphorylation and downregulation of specific DNA replication-associated proteins, cdc6, MCM2, cdc25A, nor increase in PARP cleavage, caspase activation and the 30-300 kb DNA fragmentation induced by SN-38 treatment. MSC did not alter significantly markers associated with apoptosis, nor potentiate irinotecan-induced apoptosis. These results indicate that apoptosis is unlikely to be one of the main mechanism associated with the observed in vivo therapeutic synergy. In contrast, significant downregulation of cyclooxygenase-2 (COX-2) expression and activity was observed in the cells exposed to SN-38 in combination with MSC compared to SN-38 alone. Moreover, the inhibition of PGE(2) production was also observed in the cells treated with the combination as compared with SN-38 alone. Analysis of tumor tissues at 24 h after treatment with synergistic modality of irinotecan and MSC revealed significant downregulation of COX-2, inducible nitric oxide synthase (iNOS) and hypoxia-induced factor-1alpha expression (HIF 1alpha). Moreover, decreased microvessel density was observed after irinotecan treatment with the addition of MSC. These results suggest that observed therapeutic synergy correlates with the inhibition of neoangiogenesis through the downregulation of COX-2, iNOS and HIF-1alpha expression.
Collapse
Affiliation(s)
- M-B Yin
- Department of Cancer Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Sugiatno E, Samsudin AR, Ibrahim MF, Sosroseno W. The effect of nitric oxide on the production of prostaglandin E2 by hydroxyapatite-stimulated a human osteoblast (HOS) cell line. Biomed Pharmacother 2006; 60:147-51. [PMID: 16581222 DOI: 10.1016/j.biopha.2006.02.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2005] [Accepted: 02/07/2006] [Indexed: 12/26/2022] Open
Abstract
The aim of the present study was to determine the effect of nitric oxide (NO) on the production of prostaglandin E2 (PGE2) by a human osteoblast cell line (HOS cells) stimulated with hydroxyapatite. Cells were cultured on the HA surfaces with or without the presence of NO donors (SNAP and NAP) for 3 days. The effect of NO scavenger, carboxy PTIO, or endothelial nitric oxide synthase (eNOS) inhibitor, L-NIO, was assessed by adding this scavenger in the cultures of HA-stimulated HOS cells with or without the presence of SNAP. Furthermore, HOS cells were pre-treated with anti-human integrin alphaV antibody, indomethacin, a non-specific inhibitor, aspirin, a COX-1 inhibitor, or nimesulide, a COX-2 inhibitor, prior to culturing on HA surfaces with or without the presence of SNAP. The levels of PGE2 were determined from the 3 day culture supernatants. The results showed that the production of PGE2 by HA-stimulated HOS cells was augmented by SNAP. Carboxy PTIO suppressed but L-NIO only partially inhibited the production of PGE2 by HA-stimulated HOS cells with or without the presence of exogenous NO. Pre-treatment of the cells with anti-human integrin alphaV antibody, indomethacin or nimesulide but not aspirin suppressed the production of PGE2 by HA-stimulated HOS cells with or without the presence of NO. Therefore, the results of the present study suggest that NO may up-regulate the production of PGE2 by augmenting the COX-2 pathway initiated by the binding between HOS cell-derived integrin alphaV and HA surface.
Collapse
Affiliation(s)
- Erwan Sugiatno
- School of Dental Sciences, Universiti Sains Malaysia, 16150 Kota Bahru, Malaysia
| | | | | | | |
Collapse
|
44
|
Heurtaux T, Benani A, Moulin D, Muller N, Netter P, Minn A. Induction of UGT1A6 isoform by inflammatory conditions in rat astrocytes. Neuropharmacology 2006; 50:317-28. [PMID: 16274708 DOI: 10.1016/j.neuropharm.2005.09.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2005] [Revised: 09/08/2005] [Accepted: 09/19/2005] [Indexed: 01/30/2023]
Abstract
Alteration of drug metabolism under diseased conditions is of clinical importance. We have investigated the effects of inflammatory conditions on phase II drug-metabolizing enzyme activity in rat cultured astrocytes. Lipopolysaccharide (LPS) treatment was used to promote inflammatory conditions. Thus, we reported that LPS initiates an inflammatory response, which is mediated by pro-inflammatory mediators and free radical generation. An increase in astrocyte glucuronidation activity was observed after a 48-h LPS treatment. This increase in glucuronidation activity was associated with an up-regulation of the UGT1A6 isoform mRNA level as shown by RT-PCR and gene reporter assay. Moreover, this endotoxin-induced increase in UGT1A6 expression level was blocked by actinomycin D and cycloheximide, indicating the requirement for RNA and protein synthesis. The UGT1A6 expression enhancement could be prevented by anti-inflammatory drugs (dexamethasone and NS398) or nitric oxide synthase inhibitors (L-NAME and L-NMMA). Moreover, gel shift assay revealed increased activator protein-1 (AP-1) binding activity after LPS treatment. We propose, based on the data presented, that the action of LPS to induce UGT1A6 isoform up-regulation may be mediated by pro-inflammatory mediator accumulation, and AP-1 binding activity increase.
Collapse
Affiliation(s)
- T Heurtaux
- Unité Mixte de Recherche CNRS - Université Henri Poincaré Nancy 1, No 7561, Laboratoire de Pharmacologie, Faculté de Médecine, BP 184, 54505 Vandoeuvre-lès-Nancy Cedex, France
| | | | | | | | | | | |
Collapse
|
45
|
Abstract
Nitric oxide (NO) is a pleiotropic signalling molecule that subserves a wide variety of basic cellular functions and also manifests itself pathophysiologically. As regards cancer and its progression, however, the reported role of NO appears surprisingly inconsistent. In this review, we focus on metastasis, the process of cancer cell spread and secondary tumour formation. In a 'reductionist' approach, we consider the metastatic cascade to be made up of a series of basic cellular behaviours (such as proliferation, apoptosis, adhesion, secretion migration, invasion and angiogenesis). We evaluate how NO controls such behaviours, in comparison with normal cells. The available information suggests strongly that NO signalling would be expected to regulate these behaviours both positively and negatively and this probably leads to the observed apparent variability in the NO status of cancer cells and tissues. Thus, the role of NO in cancer is more complex than previously thought. A number of suggestions are made, including consideration of novel mechanisms, such as ion channels, in order to achieve a more consistent and integrated understanding of NO signalling in cancer and to realise its clinical potential.
Collapse
Affiliation(s)
- Emma L Williams
- Division of Cell & Molecular Biology, Neuroscience Solutions to Cancer Research Group, Imperial College London, London, UK
| | | |
Collapse
|
46
|
Park SW, Sung MW, Heo DS, Inoue H, Shim SH, Kim KH. Nitric oxide upregulates the cyclooxygenase-2 expression through the cAMP-response element in its promoter in several cancer cell lines. Oncogene 2005; 24:6689-98. [PMID: 16007171 DOI: 10.1038/sj.onc.1208816] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We previously showed that nitric oxide (NO) induces overexpression of cyclooxygenase-2 (COX-2) and production of prostaglandin E(2) in cancer cells. Here, we investigated the mechanisms by which NO induces COX-2 expression in cancer cells. We found that the cAMP-response element (CRE) is a critical factor in NO-induced COX-2 expression in all cells tested. We found that in cancer cells, three transcription factors (TFs) - cAMP response element-binding protein (CREB), activating transcription factor-2 (ATF-2) and c-jun, bound the CRE in the COX-2 promoter, and their activities were increased by addition of the NO donor, S-nitroso-N-acetyl-D,L-penicillamine (SNAP). NO-induced activation of soluble guanylate cyclase (sGC), p38 and c-Jun NH(2)-terminal kinase (JNK) upregulated the three TFs, leading to COX-2 overexpression. Addition of dibutyryl-cGMP (db-cGMP) induced COX-2 expression in a manner similar to SNAP; this induction was blocked by a p38 inhibitor (SB202190), but not by a JNK inhibitor (SP600125). NO-induced cGMP was found to activate CREB and ATF-2 in a p38, but not c-jun-dependent manner, while NO induced JNK in a cGMP-independent manner, leading to subsequent activation of c-jun and ATF-2. These results suggest that the low concentrations of endogenous NO present in cancer cell may induce the expression of many genes, including COX-2, which promotes the growth and survival of tumor cells.
Collapse
Affiliation(s)
- Seok-Woo Park
- Department of Tumor Biology, College of Medicine, Seoul National University, Chongno-gu, Korea
| | | | | | | | | | | |
Collapse
|
47
|
Chen HHW, Su WC, Chou CY, Guo HR, Ho SY, Que J, Lee WY. Increased expression of nitric oxide synthase and cyclooxygenase-2 is associated with poor survival in cervical cancer treated with radiotherapy. Int J Radiat Oncol Biol Phys 2005; 63:1093-100. [PMID: 16099602 DOI: 10.1016/j.ijrobp.2005.03.062] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2004] [Revised: 01/27/2005] [Accepted: 03/18/2005] [Indexed: 01/18/2023]
Abstract
PURPOSE To investigate the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in cervical cancer and their association with clinical outcome in patients treated with radical radiotherapy. METHODS AND MATERIALS One hundred sixty-seven consecutive patients with FIGO Stages IB-IVA squamous cell cervical cancer underwent radical radiotherapy, including external-beam radiotherapy or high-dose-rate brachytherapy, or both, between 1989 and 2002. Immunohistochemical studies of their formalin-fixed, paraffin-embedded tissues were performed. Univariate and multivariate analyses were performed to identify and evaluate the effects of the factors affecting patient survival. RESULTS Positive immunostainings of iNOS and COX-2 were observed in 58.7% and 64.1% of the participants, respectively. The expression of both iNOS and COX-2 was positively correlated (Spearman correlation coefficient = 0.49, p < 0.01), and their overexpression provided independent predictors of distant metastasis (odds ratio = 5.22 and 10.07, respectively; p < 0.01 for all). iNOS- and COX-2-expressing patients had significantly shorter disease-free survival (p < 0.01, both) and cause-specific overall survival (p = 0.01, p < 0.01, respectively). Patients with iNOS-positive/COX-2-positive tumors had the poorest survival rates. Coexpression of iNOS/COX-2, together with bulky tumor and advanced stage were independent prognostic factors for disease-free survival. CONCLUSION Overexpression of iNOS or COX-2 or both was associated with decreased survival and a greater propensity to metastasize in cervical cancer patients treated with radiotherapy. Coexpression of iNOS and COX-2 may represent a useful biologic marker in patients receiving radical radiotherapy for cervical cancer.
Collapse
Affiliation(s)
- Helen H W Chen
- Department of Radiation Oncology, National Cheng Kung University Hospital, Tainan, Taiwan; Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | | | | | | | | | | | | |
Collapse
|
48
|
Abstract
SNU (Seoul National University) cell lines have been established from Korean cancer patients since 1982. Of these 109 cell lines have been characterized and reported, i.e., 17 colorectal carcinoma, 12 hepatocellular carcinoma, 11 gastric carcinoma, 12 uterine cervical carcinoma, 17 B-lymphoblastoid cell lines derived from cancer patients, 5 ovarian carcinoma, 3 malignant mixed Mllerian tumor, 6 laryngeal squamous cell carcinoma, 7 renal cell carcinoma, 9 brain tumor, 6 biliary tract, and 4 pancreatic carcinoma cell lines. These SNU cell lines have been distributed to biomedical researchers domestic and worldwide through the KCLB (Korean Cell Line Bank), and have proven to be of value in various scientific research fields. The characteristics of these cell lines have been reported in over 180 international journals by our laboratory and by many other researchers from 1987. In this paper, the cellular and molecular characteristics of SNU human cancer cell lines are summarized according to their genetic and epigenetic alterations and functional analysis.
Collapse
Affiliation(s)
- Ja-Lok Ku
- Korean Cell Line Bank, Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | | |
Collapse
|
49
|
Chen J, Yan Y, Li J, Ma Q, Stoner GD, Ye J, Huang C. Differential requirement of signal pathways for benzo[ a ]pyrene (B[ a ]P)-induced nitric oxide synthase (iNOS) in rat esophageal epithelial cells. Carcinogenesis 2005; 26:1035-43. [PMID: 15718251 DOI: 10.1093/carcin/bgi052] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Overexpression of inducible nitric oxide synthase (iNOS) has been reported in several human cancers, including esophageal squamous cell carcinoma (SCC). Benzo[a]pyrene (B[a]P), a polycyclic hydrocarbon carcinogen found in tobacco smoke and in the environment, induces cancer in multiple organ sites in animals and may be a causative agent for certain human cancers, such as esophageal cancer. In the present study, the effects of B[a]P on the induction of iNOS and the signaling pathways that lead to the induction were investigated in cultured rat esophageal epithelial (RE-149) cells. Treatment of RE-149 cells with B[a]P led to a marked increase in the expression of iNOS. The induction of iNOS by B[a]P was found to occur through an extracellular signal-regulated protein kinases (ERKs)-dependent pathway, since inhibition of ERKs by either pretreatment of RE-149 cells with PD98059, an inhibitor of ERKs upstream kinase MEK1/2, or overexpression of DN-ERK2, blocked the induction of iNOS by B[a]P. Furthermore, impairing nuclear factor-kappaB (NFkappaB) activation by either NEMO-BDBP, an NFkappaB specific inhibitor, or overexpression of DN-IkappaBalpha or IKK-KM markedly inhibited the expression of B[a]P-induced iNOS, suggesting that the NFkappaB pathway is also required for the induction of iNOS by B[a]P. In addition, treatment of RE-149 cells with either SB202190, a p38 kinase inhibitor, or c-JunN-terminal kinase inhibitor II, resulted in an increased induction of iNOS. Pretreatment of RE-149 cells with wortmannin, a PI-3K inhibitor, or with rapamycin, an mTOR/p70S6K pathway inhibitor, had no effect on the expression of iNOS. These results suggest that B[a]P initiates the signaling pathways leading to the induction of iNOS in cultured rat esophageal epithelial cells. In view of the potential role of iNOS in the development of esophageal SCC in humans, we speculate that the induction of iNOS by B[a]P may be one mechanism by which B[a]P could produce carcinogenic effects in the human esophagus.
Collapse
Affiliation(s)
- Jingyuan Chen
- Nelson Institute of Environmental Medicine, New York University School of Medicine, 57 Old Forge Road, Tuxedo, NY 10987, USA
| | | | | | | | | | | | | |
Collapse
|
50
|
Ishimura N, Bronk SF, Gores GJ. Inducible nitric oxide synthase upregulates cyclooxygenase-2 in mouse cholangiocytes promoting cell growth. Am J Physiol Gastrointest Liver Physiol 2004; 287:G88-95. [PMID: 14977638 DOI: 10.1152/ajpgi.00539.2003] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Both inducible nitric oxide (NO) synthase (iNOS) and cyclooxygenase-2 (COX-2) have been implicated in the biliary tract carcinogenesis. However, it is not known whether these inflammatory mediators are induced by interdependent or parallel pathways. Because iNOS activity has been associated with diverse gene expression, the aim of this study was to determine whether iNOS induces COX-2. To address this objective, immortalized, but nonmalignant, murine cholangiocytes, 603B cells were employed for these studies. Both iNOS and COX-2 protein and mRNA were expressed in these cells. However, iNOS inhibition with either N-[3-(aminomethyl) benzyl]acetamidine or stable transfection with an iNOS antisense construct inhibited COX-2 mRNA and protein expression, an effect that was reversed by NO donors. COX-2 mRNA expression in 603B cells was reduced by pharmacological inhibitors of the p38 MAPK and JNK1/2 pathways. In contrast, neither inhibitors of the soluble guanylyl cyclase inhibitor/protein kinase G nor p42/44 MAPK pathways attenuated COX-2 mRNA expression. Finally, 603B cells grew at a rate threefold greater than 603B-iNOS antisense cells. The low growth rate of 603B-iNOS antisense cells could be restored to near that of the parent cell line with exogenous PGE(2.) In conclusion, iNOS induces COX-2 expression in cholangiocytes, which promotes cell growth. COX-2 induction may contribute to iNOS-associated carcinogenesis.
Collapse
Affiliation(s)
- Norihisa Ishimura
- College of Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | | | | |
Collapse
|