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Dai X, Dai Y, Zheng Y, Lv Y. Magnetic nanoparticles and possible synergies with cold atmospheric plasma for cancer treatment. RSC Adv 2024; 14:29039-29051. [PMID: 39282063 PMCID: PMC11391930 DOI: 10.1039/d4ra03837a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 07/29/2024] [Indexed: 09/18/2024] Open
Abstract
The biomedical applications of magnetic nanoparticles (MNPs) have gained increasing attention due to their unique biological, chemical, and magnetic properties such as biocompatibility, chemical stability, and high magnetic susceptibility. However, several critical issues still remain that have significantly halted the clinical translation of these nanomaterials such as the relatively low therapeutic efficacy, hyperthermia resistance, and biosafety concerns. To identify innovative approaches possibly creating synergies with MNPs to resolve or mitigate these problems, we delineated the anti-cancer properties of MNPs and their existing onco-therapeutic portfolios, based on which we proposed cold atmospheric plasma (CAP) to be a possible synergizer of MNPs by enhancing free radical generation, reducing hyperthermia resistance, preventing MNP aggregation, and functioning as an innovative magnetic and light source for magnetothermal- and photo-therapies. Our insights on the possible facilitating role of CAP in translating MNPs for biomedical use may inspire fresh research directions that, once actualized, gain mutual benefits from both.
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Affiliation(s)
- Xiaofeng Dai
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 PR China
| | - Yilin Dai
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 PR China
| | - Yan Zheng
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 PR China
| | - Yi Lv
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 PR China
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Lai SW, Weng PW, Yadav VK, Pikatan NW, Yeh CT, Hsieh MS, Chou CL. Underlying mechanisms of novel cuproptosis-related dihydrolipoamide branched-chain transacylase E2 (DBT) signature in sunitinib-resistant clear-cell renal cell carcinoma. Aging (Albany NY) 2024; 16:2679-2701. [PMID: 38305803 PMCID: PMC10911363 DOI: 10.18632/aging.205504] [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: 05/23/2023] [Accepted: 11/30/2023] [Indexed: 02/03/2024]
Abstract
Renal cell carcinoma (RCC) is the predominant form of malignant kidney cancer. Sunitinib, a primary treatment for advanced, inoperable, recurrent, or metastatic RCC, has shown effectiveness in some patients but is increasingly limited by drug resistance. Recently identified cuproptosis, a copper-ion-dependent form of programmed cell death, holds promise in combating cancer, particularly drug-resistant types. However, its effectiveness in treating drug resistant RCC remains to be determined. Exploring cuproptosis's regulatory mechanisms could enhance RCC treatment strategies. Our analysis of data from the GEO and TCGA databases showed that the cuproptosis-related gene DBT is markedly under expressed in RCC tissues, correlating with worse prognosis and disease progression. In our study, we investigated copper CRGs in ccRCC, noting substantial expression differences, particularly in advanced-stage tumors. We established a connection between CRG expression levels and patient survival, positioning CRGs as potential therapeutic targets for ccRCC. In drug resistant RCC cases, we found distinct expression patterns for DBT and GLS CRGs, linked to treatment resistance. Our experiments demonstrated that increasing DBT expression significantly reduces RCC cell growth and spread, underscoring its potential as a therapeutic target. This research sheds new light on the role of CRGs in ccRCC and their impact on drug resistance.
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Affiliation(s)
- Shiue-Wei Lai
- Division of Hematology/Oncology, Department of Internal Medicine, Tri-service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Pei-Wei Weng
- Department of Orthopaedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Orthopaedics, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Vijesh Kumar Yadav
- Department of Medical Research, Taipei Medical University Shuang-Ho Hospital, Taipei, Taiwan
| | - Narpati Wesa Pikatan
- Department of Medical Research, Taipei Medical University Shuang-Ho Hospital, Taipei, Taiwan
| | - Chi-Tai Yeh
- Department of Medical Research, Taipei Medical University Shuang-Ho Hospital, Taipei, Taiwan
- Continuing Education Program of Food Biotechnology Applications, College of Science and Engineering, National Taitung University, Taitung, Taiwan
| | - Ming-Shou Hsieh
- Department of Dentistry, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei City, Taiwan
| | - Chu-Lin Chou
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Medical University-Research Center of Urology and Kidney, Taipei Medical University, Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, Hsin Kuo Min Hospital, Taipei Medical University, Taoyuan City, Taiwan
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Chandler K, Millar J, Ward G, Boyall C, White T, Ready JD, Maani R, Chapple K, Tempest R, Brealey J, Duckett C, Haywood-Small S, Turega S, Peake N. Imaging of Light-Enhanced Extracellular Vesicle-Mediated Delivery of Oxaliplatin to Colorectal Cancer Cells via Laser Ablation, Inductively Coupled Plasma Mass Spectrometry. Cells 2023; 13:24. [PMID: 38201228 PMCID: PMC10778274 DOI: 10.3390/cells13010024] [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: 11/05/2023] [Revised: 12/16/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Extracellular vesicles (EVs) are lipid bilayer structures released by all cells that mediate cell-to-cell communication via the transfer of bioactive cargo. Because of the natural origin of EVs, their efficient uptake by recipient cells, capacity to stabilize and transport biomolecules and their potential for cell/tissue targeting and preferential uptake by cancer cells, they have enormous potential for bioengineering into improved and targeted drug delivery systems. In this work, we investigated the use of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) as a tool to measure the loading of platinum-based chemotherapeutic agents. The EV loading of oxaliplatin via co-incubation was demonstrated, and LA-ICP-MS imaging showed greater efficiency of delivery to colorectal cancer cells compared to free oxaliplatin, leading to enhanced cytotoxic effect. Further, the impact of EV co-loading with a porphyrin (C5SHU, known as 'C5') photosensitizer on oxaliplatin delivery was assessed. Fluorescence analysis using nano-flow cytometry showed dose-dependent EV loading as well as a trend towards the loading of larger particles. Exposure of OXA-C5-EV-treated colorectal cancer cells to light indicated that delivery was enhanced by both light exposure and porphyrins, with a synergistic effect on cell viability observed between oxaliplatin, EVs and light exposure after the delivery of the co-loaded EVs. In summary, this work demonstrates the utility of LA-ICP-MS and mass spectrometry imaging in assessing the loading efficiency and cellular delivery of platinum-based therapeutics, which would also be suitable for agents containing other elements, confirms that EVs are more efficient at delivery compared to free drugs, and describes the use of light exposure in optimizing delivery and therapeutic effects of EV-mediated drug delivery both in combination and independently of porphyrin-based photosensitizers.
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Affiliation(s)
- Kara Chandler
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - Josh Millar
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - George Ward
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - Christopher Boyall
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - Tom White
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - Joseph David Ready
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
- PerkinElmer AES (UK) Ltd., Chalfont Road, Seer Green, Beaconsfield HP9 2FX, UK
| | - Rawan Maani
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - Keith Chapple
- Department of General Surgery, Sheffield Teaching Hospitals, NHS Foundation Trust, Sheffield S5 7AU, UK
| | - Robert Tempest
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
- NanoFCM Co., Ltd., Medicity, D6 Thane Road, Nottingham NG60 6BH, UK
| | - Joseph Brealey
- NanoFCM Co., Ltd., Medicity, D6 Thane Road, Nottingham NG60 6BH, UK
| | - Catherine Duckett
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - Sarah Haywood-Small
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - Simon Turega
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| | - Nick Peake
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
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Zhang N, Yu X, Sun H, Zhao Y, Wu J, Liu G. A prognostic and immunotherapy effectiveness model for pancreatic adenocarcinoma based on cuproptosis-related lncRNAs signature. Medicine (Baltimore) 2023; 102:e35167. [PMID: 37861553 PMCID: PMC10589590 DOI: 10.1097/md.0000000000035167] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 08/21/2023] [Indexed: 10/21/2023] Open
Abstract
Pancreatic adenocarcinoma (PAAD) results in one of the deadliest solid tumors with discouraging clinical outcomes. Growing evidence suggests that long non-coding RNAs (lncRNAs) play a crucial role in altering the growth, prognosis, migration, and invasion of pancreatic cancer cells. Cuproptosis is a novel type of cell death induced by copper (Cu) and is associated with mitochondrial respiration during the tricarboxylic acid cycle. However, the relationship between lncRNAs related to cuproptosis and PAAD is poorly studied. In this study, we investigated the association between a signature of cuproptosis-related lncRNAs and the diagnosis of PAAD. Genomic data and clinical information were obtained using the TCGA dataset, while cuproptosis-related genes (CRGs) from previous studies. Co-expression analysis was utilized to identify lncRNAs associated with cuproptosis. We developed and verified a prognostic risk model following a classification of patients into high- and low-risk categories. The prediction capacity of the risk model was assessed using a number of methods including Kaplan-Meier analysis, receiver operating characteristic (ROC) curves, nomograms, and principal component analysis (PCA). Furthermore, differentially expressed genes (DEGs) were used to perform functional enrichment analyses, and to examine the behaviors of various risk groups in terms of immune-related activities and medication sensitivity. We identified 7 cuproptosis-related lncRNA signatures, including CASC19, FAM83A-AS1, AC074099.1, AC007292.2, AC026462.3, AL358944.1, and AC009019.1, as overall survival (OS) predictors. OS and progression-free survival (PFS) showed significant differences among patients in different risk groups. Independent prognostic analysis revealed that the cuproptosis-related lncRNA signatures can independently achieve patient prognosis. The risk model demonstrated strong predictive ability for patient outcomes, as evidenced by ROC curves, nomograms, and PCA. Higher tumor mutation burden (TMB) and lower tumor immune dysfunction and exclusion (TIDE) scores were observed in the high-risk group. Additionally, the low-risk group was hypersensitive to 3 anti-cancer medications, whereas the high-risk group was hypersensitive to one. A prognostic risk model with a good predictive ability based on cuproptosis-related lncRNAs was developed, providing a theoretical basis for personalized treatment and immunotherapeutic responses in pancreatic cancer.
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Affiliation(s)
- Ning Zhang
- Graduate College, Hebei Medical University, Shijiazhuang, Hebei, China
- Department of Gastroenterology, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Xuehua Yu
- Department of Gastroenterology, Hebei General Hospital, Shijiazhuang, Hebei, China
- College of Postgraduate, Hebei North University, Zhangjiakou, Hebei, China
| | - Hui Sun
- Department of Gastroenterology, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Yunhong Zhao
- Department of Gastroenterology, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Jing Wu
- Department of Gastroenterology, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Gaifang Liu
- Department of Gastroenterology, Hebei General Hospital, Shijiazhuang, Hebei, China
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Qayyum MA, Farooq T, Baig A, Bokhari TH, Anjum MN, Mahmood MHUR, Ashraf AR, Muddassir K, Ahmad M. Assessment of essential and toxic elemental concentrations in tumor and non-tumor tissues with risk of colorectal carcinoma in Pakistan. J Trace Elem Med Biol 2023; 79:127234. [PMID: 37302218 DOI: 10.1016/j.jtemb.2023.127234] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 05/24/2023] [Accepted: 05/31/2023] [Indexed: 06/13/2023]
Abstract
BACKGROUND Colorectal tumor is a major cause of cancer morbidity and mortality both in USA and around the globe. Exposure to environmental toxicants such as toxic trace elements has been implicated in colorectal malignancy. However, data linking them to this cancer are generally lacking. METHODS Accordingly, the current study was to investigate the distribution, correlation and chemometric evaluation of 20 elements (Ca, Na, Mg, K, Zn, Fe, Ag, Co, Pb, Sn, Ni, Cr, Sr, Mn, Li, Se, Cd, Cu, Hg and As) in the tumor tissues (n = 147) and adjacent non tumor tissues (n = 147) of same colorectal patients which were analyzed by flame atomic absorption spectrophometry employing nitric acid-perchloric acid based wet digestion method. RESULTS On the average, Zn (p < 0.05), Ag (p < 0.001), Pb (p < 0.001), Ni (p < 0.01), Cr (p < 0.005) and Cd (p < 0.001) showed significantly higher levels in the tumor tissues compared with the non tumor tissues of patients, whereas mean levels of Ca (p < 0.01), Na (p < 0.05), Mg (p < 0.001), Fe (p < 0.001), Sn (p < 0.05) and Se (p < 0.01), were significantly elevated in the non tumor tissues than the tissues of tumor patients. Most of the elements revealed markedly disparities in their elemental levels based on food (vegetarian/nonvegetarian) habits and smoking (smoker/nonsmoker) habits of donor groups. The correlation study and multivariate statistical analyses demonstrated some significantly divergent associations and apportionment of the elements in the tumor tissues and non tumor tissues of donors. Noticeably, variations in the elemental levels were also noted for colorectal tumor types (lymphoma, carcinoids tumor and adenocarcinoma) and stages (I, II, III, & IV) in patients. CONCLUSION Overall, the study revealed that disproportions in essential and toxic elemental concentrations in the tissues are involved in pathogenesis of the malignancy. These findings provide the data base that helps to oncologist for diagnosis and prognosis of colorectal malignant patients.
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Affiliation(s)
- Muhammad Abdul Qayyum
- Department of Chemistry, Division of Science & Technology, University of Education, Lahore, Pakistan.
| | - Tahir Farooq
- Department of Applied Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Aqsa Baig
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | | | - Muhammad Naveed Anjum
- Department of Applied Chemistry, Government College University, Faisalabad 38000, Pakistan
| | | | - Ahmad Raza Ashraf
- Department of Chemistry, Division of Science & Technology, University of Education, Lahore, Pakistan
| | - Khawaja Muddassir
- Division of Pulmonary Critical Care and Sleep Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Muhammad Ahmad
- Department of Chemistry, Division of Science & Technology, University of Education, Lahore, Pakistan
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Wu C, Tan J, Wang X, Qin C, Long W, Pan Y, Li Y, Liu Q. Pan-cancer analyses reveal molecular and clinical characteristics of cuproptosis regulators. IMETA 2023; 2:e68. [PMID: 38868340 PMCID: PMC10989956 DOI: 10.1002/imt2.68] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/18/2022] [Accepted: 11/20/2022] [Indexed: 06/14/2024]
Abstract
Imbalance in copper homeostasis can be lethal. A recent study found that excess copper induces cell death in a way that has never been characterized before, which is dependent on mitochondrial stress and is referred to as "cuproptosis." The role of cuproptosis in tumors has not yet been elucidated. In this study, we revealed the complex and important roles of cuproptosis regulators and cuproptosis activity in tumors via a comprehensive analysis of multiomics data from more than 10,000 samples of 33 tumor types. We found that the cyclin-dependent kinase inhibitor 2A is the most frequently altered cuproptosis regulator, and the cuproptosis regulator expression is dysregulated in various tumors. Additionally, we developed a cuproptosis activity score to reflect the overall cuproptosis level. On the basis of the expression levels of cuproptosis regulators, tumors can be divided into two clusters with different cuproptosis activities and survival outcomes. Importantly, cuproptosis activity was found to be associated with the prognosis of multiple tumors and multiple tumor-related pathways, including fatty acid metabolism and remodeling of the tumor microenvironment. Furthermore, cuproptosis increased the sensitivity to multiple drugs and exhibited potential to predict the outcome of immunotherapy. We also comprehensively identified cuproptosis-related microRNAs, long noncoding RNAs, and transcription factors. We provided the code corresponding to the results of this study in GitHub (https://github.com/Changwuuu/Cuproptosis-pancancer.git) for reference. In summary, this study reveals important molecular and clinical characteristics of cuproptosis regulators and cuproptosis activity in tumors, and suggests the use of cuproptosis as a promising tumor therapeutic approach. This study provides an important reference point for future cuproptosis-related research.
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Affiliation(s)
- Changwu Wu
- Department of Neurosurgery, Xiangya HospitalCentral‐South UniversityChangshaHunanChina
| | - Jun Tan
- Department of Neurosurgery, Xiangya HospitalCentral‐South UniversityChangshaHunanChina
| | - Xiangyu Wang
- Department of Neurosurgery, Xiangya HospitalCentral‐South UniversityChangshaHunanChina
| | - Chaoying Qin
- Department of Neurosurgery, Xiangya HospitalCentral‐South UniversityChangshaHunanChina
| | - Wenyong Long
- Department of Neurosurgery, Xiangya HospitalCentral‐South UniversityChangshaHunanChina
| | - Yimin Pan
- Department of Neurosurgery, Devision of Experimental NeurosurgeryUniversity of HeidelbergHeidelbergGermany
| | - Yuzhe Li
- Department of Neurosurgery, Xiangya HospitalCentral‐South UniversityChangshaHunanChina
| | - Qing Liu
- Department of Neurosurgery, Xiangya HospitalCentral‐South UniversityChangshaHunanChina
- Institute of Skull Base Surgery and Neuro‐oncology at HunanChangshaHunanChina
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Aslan A, Karapinar HS, Kilicel F, Boyacıoğlu T, Pekin C, Toprak ŞS, Cihan M, Yilmaz BS. Trace element levels in serum and gastric mucosa in patients with Helicobacter pylori positive and negative gastritis. J Trace Elem Med Biol 2023; 75:127108. [PMID: 36435152 DOI: 10.1016/j.jtemb.2022.127108] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 10/26/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Most trace elements are inhibited by Helicobacter pylori-infection, and variations in specific element levels are linked to the development of stomach cancer. This is the first study to show the relationship between serum and tissue concentrations of twenty-five trace elements and H. pylori infection status. This study purposed to define serum and tissue trace element levels of 25 healthy individuals with Helicobacter pylori-positive gastritis and Helicobacter pylori-negative gastritis and to reveal their relationship with the disease. METHODS Study groups consisted of sixty-two patients with Helicobacter pylori-positive, thirty-seven patients with Helicobacter pylori-negative, and thirty healthy individuals. Serum and tissue concentrations of twenty-five elements (aluminum, boron, arsenic, barium, calcium, beryllium, copper, cadmium, iron, chromium, mercury, lithium, potassium, magnesium, sodium, manganese, nickel, phosphorus, lead, scandium, strontium, selenium, tellurium, titanium, zinc) were defined by inductively coupled plasma optical emission spectrometry. RESULTS Except for copper, lithium, and strontium elements in serum samples, other trace elements differed significantly between the groups (p < 0.05). The serum chromium (p = 0.002), mercury (p = 0.001), boron (p < 0.001), and cadmium (p < 0.001) levels of H. pylori-negative gastritis and H. pylori-positive gastritis participants were significantly different, and their serum concentrations were less than 0.5 µ/l. Boron, barium, beryllium, chromium, lithium, phosphorus and strontium elements in tissue samples did not differ significantly between the groups (p > 0.05). Manganese, nickel, tellurium and titanium elements were not detected in tissue and serum samples. The mean concentrations of calcium, beryllium, chromium, iron, potassium, lithium, magnesium, scandium, and selenium were higher in the tissues of patients with H. pylori gastritis compared to healthy control tissues. Also, cadmium could not be detected in tissue samples. There was a significant difference between H. pylori-infected tissue and serum chromium levels (p = 0.001), with lower levels detected in tissue samples. CONCLUSION This is the first study that we are knowledgeable of that reports the concentrations of twenty five elements in both serum and tissue samples, as well as the relationship between trace elements and Helicobacter pylori-infection status. Dietary adjustment is indicated as an adjunct to medical therapy to stabilize trace elements because Helicobacter pylori bacteria cause inflammation and impair element absorption in gastritis patients. We also think that this study will shed light on studies on the relationship between Helicobacter pylori-trace elements and serum-tissue/healthy serum-tissue trace element levels of patients with Helicobacter pylori gastritis.
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Affiliation(s)
- Ahmet Aslan
- Department of General Surgery, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
| | - Hacer Sibel Karapinar
- Scientific and Technological Research & Application Center, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey.
| | - Fevzi Kilicel
- Department of Chemistry, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
| | - Tülin Boyacıoğlu
- Institute of Science, Department of Chemistry, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
| | - Ceyhun Pekin
- Department of General Surgery, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
| | - Şükrü Salih Toprak
- Department of General Surgery, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
| | - Mehmethan Cihan
- Department of General Surgery, Karaman Training and Research Hospital, 70100 Karaman, Turkey
| | - Burcu Sanal Yilmaz
- Department of Medical Pathology, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
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Esien-Umo EO, Obu JA, Chiaghanam NO, Ugbem TI, Egbe NO. Photon Interaction Coefficients for the Colorectal Cancer Tissue. J Med Phys 2022; 47:381-386. [PMID: 36908488 PMCID: PMC9997532 DOI: 10.4103/jmp.jmp_29_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 01/12/2023] Open
Abstract
Purpose The application of radiotherapy to the treatment of cancer requires the knowledge of photon interaction coefficients such as mass attenuation (μm) and mass energy-absorption coefficients (μen/ρ). Although these coefficients have been determined for different tissues, it is lacking for the colorectal cancer (CRC) tissue in the literature. This study determines the μm and μen/ρ for the CRC tissue within the radiotherapy energy range. Materials and Methods The CRC tissue from autopsy patients was freeze-dried, grounded into a fine powder, and made into pellets of 1 cm thickness. The elements detected in the CRC tissue using Rutherford backscattering spectrometry were used in XCOM to determine the theoretical values of μm and μen/ρ. The CRC tissue was again exposed to X-rays of energies of 6 and 15MV, respectively, to determine its experimental values of μm and μen/ρ. Results Elements detected included carbon, oxygen and nitrogen making up 96.67%, high atomic number and trace elements making up the remaining 3.33% fraction of the CRC tissue. Conclusion The theoretical and experimental μm and μen/ρ values showed a good agreement of about 2% difference between them. These values can be used to simulate the CRC tissue with respect to μm and μen/ρ.
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Affiliation(s)
- Emmanuel Okon Esien-Umo
- Department of Radiography and Radiological Sciences, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Nigeria
| | - Joseph Abebe Obu
- Department of Physics, Faculty of Physical Sciences, University of Calabar, Calabar, Nigeria
| | - Ndubuisi Ozoemena Chiaghanam
- Department of Radiography and Radiological Sciences, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Nigeria
| | | | - Nneoyi Onen Egbe
- Department of Radiography and Radiological Sciences, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Nigeria
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9
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Clases D, Gonzalez de Vega R. Facets of ICP-MS and their potential in the medical sciences-Part 1: fundamentals, stand-alone and hyphenated techniques. Anal Bioanal Chem 2022; 414:7337-7361. [PMID: 36028724 PMCID: PMC9482897 DOI: 10.1007/s00216-022-04259-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 12/02/2022]
Abstract
Since its inception in the early 80s, inductively coupled plasma-mass spectrometry has developed to the method of choice for the analysis of elements in complex biological systems. High sensitivity paired with isotopic selectivity and a vast dynamic range endorsed ICP-MS for the inquiry of metals in the context of biomedical questions. In a stand-alone configuration, it has optimal qualities for the biomonitoring of major, trace and toxicologically relevant elements and may further be employed for the characterisation of disrupted metabolic pathways in the context of diverse pathologies. The on-line coupling to laser ablation (LA) and chromatography expanded the scope and application range of ICP-MS and set benchmarks for accurate and quantitative speciation analysis and element bioimaging. Furthermore, isotopic analysis provided new avenues to reveal an altered metabolism, for the application of tracers and for calibration approaches. In the last two decades, the scope of ICP-MS was further expanded and inspired by the introduction of new instrumentation and methodologies including novel and improved hardware as well as immunochemical methods. These additions caused a paradigm shift for the biomedical application of ICP-MS and its impact in the medical sciences and enabled the analysis of individual cells, their microenvironment, nanomaterials considered for medical applications, analysis of biomolecules and the design of novel bioassays. These new facets are gradually recognised in the medical communities and several clinical trials are underway. Altogether, ICP-MS emerged as an extremely versatile technique with a vast potential to provide novel insights and complementary perspectives and to push the limits in the medical disciplines. This review will introduce the different facets of ICP-MS and will be divided into two parts. The first part will cover instrumental basics, technological advances, and fundamental considerations as well as traditional and current applications of ICP-MS and its hyphenated techniques in the context of biomonitoring, bioimaging and elemental speciation. The second part will build on this fundament and describe more recent directions with an emphasis on nanomedicine, immunochemistry, mass cytometry and novel bioassays.
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Affiliation(s)
- David Clases
- Nano Mirco LAB, Institute of Chemistry, University of Graz, Graz, Austria.
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10
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Transcriptional and genetic alterations of cuproptosis-related genes correlated to malignancy and immune-infiltrate of esophageal carcinoma. Cell Death Dis 2022; 8:370. [PMID: 35995782 PMCID: PMC9395517 DOI: 10.1038/s41420-022-01164-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/04/2022] [Accepted: 08/10/2022] [Indexed: 01/10/2023]
Abstract
Esophageal carcinoma (ESCA) is a common type of cancer with high mortality. Cuproptosis is a new type of cell death and is characterized by the dependence on mitochondrial respiration and protein lipoylation. However, the potential roles of cuproptosis-related genes (CRGs) in ESCA remain elusive. Here, we systematically assessed the transcriptional and genetic alterations of CRGs in ESCA. We identified a CRGs signature for ESCA patients. A 6-CRGs signature was constructed by the least absolute shrinkage and selection operator (LASSO) regression analysis along with the univariate cox regression analysis and differential genes analysis. The CRGs score could significantly stratify ESCA patients’ survival and a high CRGs score was significantly correlated with worse overall survival. Moreover, higher CRGs score indicated higher pathology grades and aberrant cell adhesion, possibly via the PI3K-AKT pathway, which could also underly their increased sensitivity to PI3K-AKT pathway inhibitors. In addition, patients with high CRGs tend to hold more mutation load and abnormal APOBEC mutation. Notably, a higher CRGs score was anomalously associated with more immune infiltration, which could explain its malignancy by increased PD-L1 stability and a higher proportion of bystander T cells. In conclusion, our report revealed the significance of cuproptosis in ESCA and may have therapeutic potential in activating the bystander T cells.
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11
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Türkdoğan MK, Karapinar HS, Kilicel F. Serum trace element levels of gastrointestinal cancer patients in an endemic upper gastrointestinal cancer region. J Trace Elem Med Biol 2022; 72:126978. [PMID: 35366527 DOI: 10.1016/j.jtemb.2022.126978] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/15/2022] [Accepted: 03/22/2022] [Indexed: 12/24/2022]
Abstract
Gastrointestinal (GI) cancers are an important cause of the death rate in Turkey and in the world. Especially upper (esophageal and gastric) GI cancers are the leading types of cancer by 20-27% in Eastern Turkey. Trace elements are involved in many physiological and metabolic processes in the human body. Recent studies suggest that the increase or decrease of trace elements in the body may be related to the formation and development of many diseases such as cancers, diabetes mellitus and cardiovascular diseases etc. METHOD AND MATERIALS: In this study some trace elements; cadmium (Cd), cobalt (Co), Copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), nickel (Ni), lead (Pb), zinc (Zn) concentrations were investigated in the blood serums of esophageal, gastric and colon cancer patients and healthy controls in Van city area, an endemic upper (esophageal and gastric) GI region of Eastern Turkey. The analysis of the elements was realized with a flame atomic absorption spectrophotometer (FAAS). RESULTS: Mean serum levels of Cd and Ni in esophageal and gastric cancer patients were very significantly lower compared to controls (p < 0.001 and < 0.005). In addition, the mean serum Co level of esophageal cancer patients was very significantly lower than in controls and gastric cancer patients (p < 0.002). Also, the mean serum levels of Fe and Mn in all (esophageal, gastric and colon) cancer groups were very significantly lower than in controls (p < 0.001 and 0.002). Mean serum levels of Cu, Mg, Pb and Zn were not significantly different in all cancer patients compared to controls. CONCLUSION: We have detected the deficiency of five trace elements (Fe, Mn, Cd, Ni, Co) in esophageal, gastric and colon cancer patients. The deficiencies of trace elements may be due to malign over consumption of the nutrients and to the malnutrition of the advanced cancer patients. Nutritional therapy rich in trace elements should be considered as one of the strategies to fight against cancers.
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Affiliation(s)
- M Kürşat Türkdoğan
- Department of Nutrition and Dietetics, Istanbul Sabahattin Zaim University, 34662 Istanbul, Turkey
| | - Hacer Sibel Karapinar
- Scientific and Technological Research & Application Center, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey.
| | - Fevzi Kilicel
- Department of Chemistry, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
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12
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Zhang Y, He J, Jin J, Ren C. Recent advances in the application of metallomics in diagnosis and prognosis of human cancer. Metallomics 2022; 14:6596881. [PMID: 35648480 DOI: 10.1093/mtomcs/mfac037] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022]
Abstract
Metals play a critical role in human health and diseases. In recent years, metallomics has been introduced and extensively applied to investigate the distribution, regulation, function, and crosstalk of metal(loid) ions in various physiological and pathological processes. Based on high-throughput multielemental analytical techniques and bioinformatics methods, it is possible to elucidate the correlation between the metabolism and homeostasis of diverse metals and complex diseases, in particular for cancer. This review aims to provide an overview of recent progress made in the application of metallomics in cancer research. We mainly focuses on the studies about metallomic profiling of different human biological samples for several major types of cancer, which reveal distinct and dynamic patterns of metal ion contents and the potential benefits of using such information in the detection and prognosis of these malignancies. Elevated levels of copper appear to be a significant risk factor for various cancers, and each type of cancer has a unique distribution of metals in biofluids, hair/nails, and tumor-affected tissues. Furthermore, associations between genetic variations in representative metalloprotein genes and cancer susceptibility have also been demonstrated. Overall, metallomics not only offers a better understanding of the relationship between metal dyshomeostasis and the development of cancer but also facilitates the discovery of new diagnostic and prognostic markers for cancer translational medicine.
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Affiliation(s)
- Yan Zhang
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, Brain Disease and Big Data Research Institute, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong Province, P. R. China.,Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Jie He
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, Brain Disease and Big Data Research Institute, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Jiao Jin
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, Brain Disease and Big Data Research Institute, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Cihan Ren
- Experimental High School Attached to Beijing Normal University, Beijing 100052, P. R. China
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13
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Supplementation with High or Low Iron Reduces Colitis Severity in an AOM/DSS Mouse Model. Nutrients 2022; 14:nu14102033. [PMID: 35631174 PMCID: PMC9147005 DOI: 10.3390/nu14102033] [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: 04/07/2022] [Revised: 05/03/2022] [Accepted: 05/07/2022] [Indexed: 11/17/2022] Open
Abstract
The relationship between colitis-associated colorectal cancer (CAC) and the dysregulation of iron metabolism has been implicated. However, studies on the influence of dietary iron deficiency on the incidence of CAC are limited. This study investigated the effects of dietary iron deficiency and dietary non-heme iron on CAC development in an azoxymethane/dextran sodium sulfate (AOM/DSS) mouse model. The four-week-old mice were divided into the following groups: iron control (IC; 35 ppm iron/kg) + normal (NOR), IC + AOM/DSS, iron deficient (ID; <5 ppm iron/kg diet) + AOM/DSS, and iron overload (IOL; approximately 2000 ppm iron/kg) + AOM/DSS. The mice were fed the respective diets for 13 weeks, and the AOM/DSS model was established at week five. FTH1 expression increased in the mice’s colons in the IC + AOM/DSS group compared with that observed in the ID and IOL + AOM/DSS groups. The reduced number of colonic tumors in the ID + AOM/DSS and IOL + AOM/DSS groups was accompanied by the downregulated expression of cell proliferation regulators (PCNA, cyclin D1, and c-Myc). Iron overload inhibited the increase in the expression of NF-κB and its downstream inflammatory cytokines (IL-6, TNFα, iNOS, COX2, and IL-1β), likely due to the elevated expression of antioxidant genes (SOD1, TXN, GPX1, GPX4, CAT, HMOX1, and NQO1). ID + AOM/DSS may hinder tumor development in the AOM/DSS model by inhibiting the PI3K/AKT pathway by increasing the expression of Ndrg1. Our study suggests that ID and IOL diets suppress AOM/DSS-induced tumors and that long-term iron deficiency or overload may negate CAC progression.
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14
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Rozenberg JM, Kamynina M, Sorokin M, Zolotovskaia M, Koroleva E, Kremenchutckaya K, Gudkov A, Buzdin A, Borisov N. The Role of the Metabolism of Zinc and Manganese Ions in Human Cancerogenesis. Biomedicines 2022; 10:biomedicines10051072. [PMID: 35625809 PMCID: PMC9139143 DOI: 10.3390/biomedicines10051072] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 04/30/2022] [Accepted: 05/03/2022] [Indexed: 12/14/2022] Open
Abstract
Metal ion homeostasis is fundamental for life. Specifically, transition metals iron, manganese and zinc play a pivotal role in mitochondrial metabolism and energy generation, anti-oxidation defense, transcriptional regulation and the immune response. The misregulation of expression or mutations in ion carriers and the corresponding changes in Mn2+ and Zn2+ levels suggest that these ions play a pivotal role in cancer progression. Moreover, coordinated changes in Mn2+ and Zn2+ ion carriers have been detected, suggesting that particular mechanisms influenced by both ions might be required for the growth of cancer cells, metastasis and immune evasion. Here, we present a review of zinc and manganese pathophysiology suggesting that these ions might cooperatively regulate cancerogenesis. Zn and Mn effects converge on mitochondria-induced apoptosis, transcriptional regulation and the cGAS-STING signaling pathway, mediating the immune response. Both Zn and Mn influence cancer progression and impact treatment efficacy in animal models and clinical trials. We predict that novel strategies targeting the regulation of both Zn and Mn in cancer will complement current therapeutic strategies.
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Affiliation(s)
- Julian Markovich Rozenberg
- Moscow Institute of Physics and Technology, National Research University, 141700 Moscow, Russia; (M.S.); (M.Z.); (E.K.); (K.K.); (A.B.); (N.B.)
- Correspondence:
| | - Margarita Kamynina
- Group of Experimental Biotherapy and Diagnostic, Institute for Regenerative Medicine, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (M.K.); (A.G.)
| | - Maksim Sorokin
- Moscow Institute of Physics and Technology, National Research University, 141700 Moscow, Russia; (M.S.); (M.Z.); (E.K.); (K.K.); (A.B.); (N.B.)
- Group of Experimental Biotherapy and Diagnostic, Institute for Regenerative Medicine, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (M.K.); (A.G.)
| | - Marianna Zolotovskaia
- Moscow Institute of Physics and Technology, National Research University, 141700 Moscow, Russia; (M.S.); (M.Z.); (E.K.); (K.K.); (A.B.); (N.B.)
- OmicsWay Corporation, Walnut, CA 91789, USA
| | - Elena Koroleva
- Moscow Institute of Physics and Technology, National Research University, 141700 Moscow, Russia; (M.S.); (M.Z.); (E.K.); (K.K.); (A.B.); (N.B.)
| | - Kristina Kremenchutckaya
- Moscow Institute of Physics and Technology, National Research University, 141700 Moscow, Russia; (M.S.); (M.Z.); (E.K.); (K.K.); (A.B.); (N.B.)
| | - Alexander Gudkov
- Group of Experimental Biotherapy and Diagnostic, Institute for Regenerative Medicine, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (M.K.); (A.G.)
| | - Anton Buzdin
- Moscow Institute of Physics and Technology, National Research University, 141700 Moscow, Russia; (M.S.); (M.Z.); (E.K.); (K.K.); (A.B.); (N.B.)
- Group of Experimental Biotherapy and Diagnostic, Institute for Regenerative Medicine, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (M.K.); (A.G.)
- OmicsWay Corporation, Walnut, CA 91789, USA
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Oncobox Ltd., 121205 Moscow, Russia
| | - Nicolas Borisov
- Moscow Institute of Physics and Technology, National Research University, 141700 Moscow, Russia; (M.S.); (M.Z.); (E.K.); (K.K.); (A.B.); (N.B.)
- OmicsWay Corporation, Walnut, CA 91789, USA
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Rodríguez-Tomàs E, Baiges-Gaya G, Castañé H, Arenas M, Camps J, Joven J. Trace elements under the spotlight: A powerful nutritional tool in cancer. J Trace Elem Med Biol 2021; 68:126858. [PMID: 34537473 DOI: 10.1016/j.jtemb.2021.126858] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 09/01/2021] [Accepted: 09/10/2021] [Indexed: 01/31/2023]
Abstract
Cancer is the second leading cause of death worldwide. Research on the relationships between trace elements (TE) and the development of cancer or its prevention is a field that is gaining increasing relevance. This review provides an evaluation of the effects of TE (As, Al, B, Cd, Cr, Cu, F, I, Pb, Li, Mn, Hg, Mo, Ni, Se, Si, Sn, V and Zn) intake and supplementation in cancer risk and prevention, as well as their interactions with oncology treatments. Advancements in the knowledge of TE, their dietary interactions and their main food sources can provide patients with choices that will help them to improve their quality of life and therapy outcomes. This approach could open new opportunities for treatments based on the integration of conventional therapies (chemotherapy, radiotherapy, and immunotherapy) and dietary interventions that provide advanced personalized treatments.
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Affiliation(s)
- Elisabet Rodríguez-Tomàs
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, C. Sant Joan s/n, 43201, Reus, Spain; Department of Radiation Oncology, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Av. Doctor Josep Laporte 2, 43204, Reus, Spain
| | - Gerard Baiges-Gaya
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, C. Sant Joan s/n, 43201, Reus, Spain
| | - Helena Castañé
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, C. Sant Joan s/n, 43201, Reus, Spain
| | - Meritxell Arenas
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, C. Sant Joan s/n, 43201, Reus, Spain; Department of Radiation Oncology, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Av. Doctor Josep Laporte 2, 43204, Reus, Spain
| | - Jordi Camps
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, C. Sant Joan s/n, 43201, Reus, Spain
| | - Jorge Joven
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, C. Sant Joan s/n, 43201, Reus, Spain
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16
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Sohrabi M, Nikkhah M, Sohrabi M, Rezaee Farimani A, Mirasgari Shahi M, Ziaie H, Shirmardi S, Kohi Z, Salehpour D, Safarnezhad Tameshkel F, Hajibaba M, Zamani F, Ajdarkosh H, Sohrabi M, Gholami A. Evaluating tissue levels of the eight trace elements and heavy metals among esophagus and gastric cancer patients: A comparison between cancerous and non-cancerous tissues. J Trace Elem Med Biol 2021; 68:126761. [PMID: 34139544 DOI: 10.1016/j.jtemb.2021.126761] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 02/23/2021] [Accepted: 04/12/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Considering the affecting role of environmental factors including trace elements and heavy metals on the upper gastrointestinal (GI) cancers, there is paucity of empirical research in tissue evaluations. OBJECTIVES The present study aimed to measure the tissue content of some trace elements and heavy metals such as zinc (Zn), chromium (Cr), manganese (Mn), tin (Sn), copper (Cu), aluminum (Al), lead (Pb), and iron (Fe) in esophagus and gastric cancerous tissues compared to the adjacent healthy tissues. METHODS In a cross-sectional study, the aforementioned trace elements and heavy metals were evaluated among patients with esophagus and gastric cancers. During endoscopy, multiple samples were taken from cancerous lesions and the adjacent healthy tissues. The classic flame atomic absorption spectroscopy (FAAS) method was employed as the study framework. RESULTS Fifty patients with the mean age of 53.92 ± 8.73 were enrolled in the current study. Thirteen patients suffered from esophageal cancer and thirty-seven patients were afflicted with gastric cancer. The results revealed significant differences in the median concentrations of Zn, Cr, Sn and, Cu (P < 0.05) between the two groups. Although there were no significant changes in the tissue content in the esophageal samples, in the median concentrations of Zn, Cr and, Sn (P < 0.05) in gastric tissues, significant differences were observed. Further, the results indicated that gender enacted an affecting role in the level of some trace elements and heavy metals. CONCLUSION The tissue contents of some elements were altered in gastric and esophageal cancers; this difference may reflect the underlying mechanism of cellular changing during the tumorigenesis or direct exposure of these elements. It seems that under the shade of other coexisting risk factors, larger cohort studies are suggested to be conducted to investigate other probable aspects in this area of interest.
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Affiliation(s)
- Masoudreza Sohrabi
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Nikkhah
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Melika Sohrabi
- Department of Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran
| | - Azam Rezaee Farimani
- Department of Clinical Biochemistry, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | | | - Hossein Ziaie
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Solmaz Shirmardi
- Department of Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran
| | - Zahra Kohi
- Department of Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran
| | - Delaram Salehpour
- Department of Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran
| | | | - Marzieh Hajibaba
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Farhad Zamani
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Ajdarkosh
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmoudreza Sohrabi
- Department of Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran.
| | - Ali Gholami
- Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran; School of Public Health, Neyshabur University of Medical Sciences, Neyshabur, Iran.
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17
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Sun MY, Xu B, Wu QX, Chen WL, Cai S, Zhang H, Tang QF. Cisplatin-Resistant Gastric Cancer Cells Promote the Chemoresistance of Cisplatin-Sensitive Cells via the Exosomal RPS3-Mediated PI3K-Akt-Cofilin-1 Signaling Axis. Front Cell Dev Biol 2021; 9:618899. [PMID: 33644057 PMCID: PMC7905060 DOI: 10.3389/fcell.2021.618899] [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: 10/19/2020] [Accepted: 01/11/2021] [Indexed: 12/16/2022] Open
Abstract
Cisplatin is an important agent in first-line chemotherapy against gastric cancer (GC). However, consequential drug resistance limits its effectiveness for the treatment of GC. In this study, a cisplatin resistant gastric cancer cell line SGC7901R was determined by LC-MS/MS with increased exosomal levels of RPS3 protein. SGC7901R cell-derived exosomes were readily taken up by cisplatin-sensitive SGC7901S cells, thus triggering off a phenotype of chemoresistance in the receptor cells. Subsequently, it was demonstrated that exosomal RPS3 was essential for inducing chemoresistance of receptor cells as shown by the acquisition of this phenotype in SGC7901S cells with enforced expression of RPS3. Further mechanism study demonstrated that cisplatin-resistant gastric cancer cell-derived exosomal RPS3 enhanced the chemoresistance of cisplatin-sensitive gastric cancer cells through the PI3K-Akt-cofilin-1 signaling pathway. All these findings demonstrated that cisplatin-resistant gastric cancer cells communicate with sensitive cells through the intercellular delivery of exosomal RPS3 and activation of the PI3K-Akt-cofilin-1 signaling pathway. Targeting exosomal RPS3 protein in cisplatin-resistant gastric cancer cells may thus be a promising strategy to overcome cisplatin resistance in gastric cancer.
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Affiliation(s)
- Meng-Yao Sun
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bo Xu
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiu-Xue Wu
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Si Cai
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hui Zhang
- Research Center for Traditional Chinese Medicine Complexity System, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qing-Feng Tang
- Department of Clinical Laboratory and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Clinical Laboratory, Jiading Branch of Shanghai General Hospital, Shanghai, China
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18
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Lelièvre P, Sancey L, Coll JL, Deniaud A, Busser B. The Multifaceted Roles of Copper in Cancer: A Trace Metal Element with Dysregulated Metabolism, but Also a Target or a Bullet for Therapy. Cancers (Basel) 2020; 12:E3594. [PMID: 33271772 PMCID: PMC7760327 DOI: 10.3390/cancers12123594] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022] Open
Abstract
In the human body, copper (Cu) is a major and essential player in a large number of cellular mechanisms and signaling pathways. The involvement of Cu in oxidation-reduction reactions requires close regulation of copper metabolism in order to avoid toxic effects. In many types of cancer, variations in copper protein levels have been demonstrated. These variations result in increased concentrations of intratumoral Cu and alterations in the systemic distribution of copper. Such alterations in Cu homeostasis may promote tumor growth or invasiveness or may even confer resistance to treatments. Once characterized, the dysregulated Cu metabolism is pinpointing several promising biomarkers for clinical use with prognostic or predictive capabilities. The altered Cu metabolism in cancer cells and the different responses of tumor cells to Cu are strongly supporting the development of treatments to disrupt, deplete, or increase Cu levels in tumors. The metallic nature of Cu as a chemical element is key for the development of anticancer agents via the synthesis of nanoparticles or copper-based complexes with antineoplastic properties for therapy. Finally, some of these new therapeutic strategies such as chelators or ionophores have shown promising results in a preclinical setting, and others are already in the clinic.
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Affiliation(s)
- Pierre Lelièvre
- Institute for Advanced Biosciences, UGA INSERM U1209 CNRS UMR5309, 38700 La Tronche, France; (P.L.); (L.S.); (J.-L.C.)
| | - Lucie Sancey
- Institute for Advanced Biosciences, UGA INSERM U1209 CNRS UMR5309, 38700 La Tronche, France; (P.L.); (L.S.); (J.-L.C.)
| | - Jean-Luc Coll
- Institute for Advanced Biosciences, UGA INSERM U1209 CNRS UMR5309, 38700 La Tronche, France; (P.L.); (L.S.); (J.-L.C.)
| | - Aurélien Deniaud
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, Laboratoire de Chimie et Biologie des Métaux, 38000 Grenoble, France
| | - Benoit Busser
- Institute for Advanced Biosciences, UGA INSERM U1209 CNRS UMR5309, 38700 La Tronche, France; (P.L.); (L.S.); (J.-L.C.)
- Department of Clinical Biochemistry, Grenoble Alpes University Hospital, 38043 Grenoble, France
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19
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Disease Ionomics: Understanding the Role of Ions in Complex Disease. Int J Mol Sci 2020; 21:ijms21228646. [PMID: 33212764 PMCID: PMC7697569 DOI: 10.3390/ijms21228646] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 12/12/2022] Open
Abstract
Ionomics is a novel multidisciplinary field that uses advanced techniques to investigate the composition and distribution of all minerals and trace elements in a living organism and their variations under diverse physiological and pathological conditions. It involves both high-throughput elemental profiling technologies and bioinformatic methods, providing opportunities to study the molecular mechanism underlying the metabolism, homeostasis, and cross-talk of these elements. While much effort has been made in exploring the ionomic traits relating to plant physiology and nutrition, the use of ionomics in the research of serious diseases is still in progress. In recent years, a number of ionomic studies have been carried out for a variety of complex diseases, which offer theoretical and practical insights into the etiology, early diagnosis, prognosis, and therapy of them. This review aims to give an overview of recent applications of ionomics in the study of complex diseases and discuss the latest advances and future trends in this area. Overall, disease ionomics may provide substantial information for systematic understanding of the properties of the elements and the dynamic network of elements involved in the onset and development of diseases.
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20
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Juloski JT, Rakic A, Ćuk VV, Ćuk VM, Stefanović S, Nikolić D, Janković S, Trbovich AM, De Luka SR. Colorectal cancer and trace elements alteration. J Trace Elem Med Biol 2020; 59:126451. [PMID: 31954212 DOI: 10.1016/j.jtemb.2020.126451] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 12/11/2019] [Accepted: 01/05/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND Trace elements have important influence on body function primarily because of the vital role they have in many physiological processes. Their alterations have been found in many disorders, including cancer. It has been well known for decades that disturbances in elemental concentration may lead to cell damaging, DNA injuries and imbalance in oxidative burden. Our study tried to determine the difference of trace elements concentrations between colorectal adenocarcinoma and adjacent healthy intestinal tissue. METHODS 59 subjects participated in this study. Healthy colon mucosa samples and colon tumor tissue samples were obtained from patients previously diagnosed with colon carcinoma by standard diagnostic procedures. Analysis of the elements was performed by inductively coupled plasma mass spectrometry (ICP-MS). RESULTS The results showed that Na, K, Mg, Ca, Cu, Zn, Se, Mn, Cd, Cr and Hg significantly differ between malignant tissue of colorectal cancer (CRC) and adjacent healthy bowel tissue. We have, also, found that Cu/Zn tissue ratio was significantly higher in CRC compared to a healthy tissue and that patients with higher CRC stages had also significantly higher ratio. CONCLUSIONS Since this is the first such study in Balkan region, we assume that results of our study could be a good indicator of elemental alterations in colorectal cancer of Balkan population, due to similarity in lifestyle, dietary intake, pollution and exposure to toxic elements.
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Affiliation(s)
- Jovan T Juloski
- Zvezdara Medical University Center, Surgery Clinic "Nikola Spasić", Dimitrija Tucovica 161, 11000 Belgrade, Serbia.
| | - Aleksandar Rakic
- Department of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 1, 11000 Belgrade, Serbia.
| | - Vladica V Ćuk
- Zvezdara Medical University Center, Surgery Clinic "Nikola Spasić", Dimitrija Tucovica 161, 11000 Belgrade, Serbia.
| | - Vladimir M Ćuk
- Zvezdara Medical University Center, Surgery Clinic "Nikola Spasić", Dimitrija Tucovica 161, 11000 Belgrade, Serbia.
| | - Srđan Stefanović
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11000 Belgrade, Serbia.
| | - Dragica Nikolić
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11000 Belgrade, Serbia.
| | - Saša Janković
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11000 Belgrade, Serbia.
| | - Alexander M Trbovich
- Department of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 1, 11000 Belgrade, Serbia.
| | - Silvio R De Luka
- Department of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 1, 11000 Belgrade, Serbia.
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Ranjbary AG, Mehrzad J, Dehghani H, Abdollahi A, Hosseinkhani S. Variation in Blood and Colorectal Epithelia's Key Trace Elements Along with Expression of Mismatch Repair Proteins from Localized and Metastatic Colorectal Cancer Patients. Biol Trace Elem Res 2020; 194:66-75. [PMID: 31172427 DOI: 10.1007/s12011-019-01749-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 05/09/2019] [Indexed: 12/18/2022]
Abstract
Colorectal cancer (CRC) is an increasingly common medical issue affecting millions worldwide, and contribution of the body's trace elements to CRC is arguable. The concentrations and buffered status of selenium, iron, copper, zinc, and phosphorus in blood and large intestinal tissues of CRC patients are, respectively, variable and vital for cell physiology. The aim of this study was to assess selenium, iron, copper, zinc, and phosphorus variations in blood and colorectal epithelia along with examining the expression of mismatch repair proteins in CRC patients with/without metastasis for potential diagnosis/therapy. Concentrations of selenium, iron, copper, zinc, and phosphorus in blood of healthy versus CRC patients and colorectal epithelia (adenocarcinomatous versus non-adenocarcinomatous/control) were measured in 40 CRC patients (55.87 ± 11.9 years old) with/without metastasis before surgery using ICP-OES. Mismatch repair (MMR) protein expression was analyzed through histopathological/immunohistochemistry assays, which was sparse in 5 CRC patient's colorectal tissues (12%). Compared with healthy individuals, blood and colorectal tissue's levels of phosphorus, copper, and iron were significantly higher in the CRC patients, and more pronounced in metastatic CRC patients; conversely, blood and colorectal tissue's selenium levels were significantly lower in metastatic patients. Unlike blood zinc, cancerous colorectal tissue's zinc concentration was significantly lower in CRC patients compared to healthy control cohorts. There was no significant difference on the measured elements in samples from CRC patients with MMR- compared to CRC patients with MMR+. Receiver operating characteristic analysis revealed a correlation of blood iron, zinc, copper, and phosphorus to CRC, and inappropriately low levels of blood and colorectal selenium correlated with exacerbated metastasis. Altered levels of selenium, iron, copper, zinc, and phosphorus in vivo may impact the pathogenesis and detection of CRC, and their diagnostic/therapeutic potential in CRC would be revealing.
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Affiliation(s)
- Ali Ghorbani Ranjbary
- Department of Pathobiology, Section Biotechnology, Faculty of Veterinary Medicine, and Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Jalil Mehrzad
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Hesam Dehghani
- Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
- Stem Cells and Regenerative Medicine Research Group, Research Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Abbas Abdollahi
- Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saman Hosseinkhani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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22
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Jiang C, Zhao QQ, Gao Q, Wu SB, Wang G, Chen XP, Wang L, Zhang YY, Tang J. Diagnostic potential of ionomic profile in the plasma of cervical cancer patients receiving neoadjuvant chemoradiotherapy. J Trace Elem Med Biol 2020; 57:68-74. [PMID: 31568922 DOI: 10.1016/j.jtemb.2019.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 08/29/2019] [Accepted: 09/17/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Major and trace elements play an important role in human body, and it has been reported that ionomic distribution differ greatly in tumor patients. The aim of the present study was to investigate the effects of cisplatin-based neoadjuvant chemoradiotherapy on the ionomic profile in human plasma as a potential biomarker for the therapeutic effects of cervical cancer. METHOD Thirty-seven patients with cervical cancer receiving neoadjuvant chemoradiotherapy were included in this study, pretherapy and post-treatment blood samples were collected and concentrations of 24 ions were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). RESULTS The results showed that after cisplatin chemotherapy and radiotherapy, patients' plasma Pt level significantly increased, Na, Mg, P, K, Ca, Se, Cu, Zn, Se, Sr, Ba levels significantly decreased (P < 0.01), and Al, Cu ions were significantly correlated with the treatment effect (P < 0.05). In addition, the pattern of elemental correlations changed dramatically after the neoadjuvant chemoradiotherapy. CONCLUSION The results indicated that the plasma ionomic profile may serve as a quick and convenient tool to reflect the therapeutic effect of cisplatin-based chemoradiotherapy in cervical cancer patients, and supplement of certain essential elements may be of great importance for the maintenance of ion homeostasis in human body and for the reduction of adverse effect of chemotherapy and radiotherapy.
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Affiliation(s)
- Chun Jiang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha, 410078, PR China
| | - Qing-Qing Zhao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha, 410078, PR China
| | - Qian Gao
- Department of Clinical Laboratory Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China
| | - Shao-Bin Wu
- Department of General Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China
| | - Guo Wang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha, 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
| | - Xiao-Ping Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha, 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
| | - Lin Wang
- College of Chemistry & Chemical Engineering, Central South University, Changsha, 410083, PR China
| | - Ying-Ying Zhang
- Department of Oncology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, PR China.
| | - Jie Tang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha, 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, PR China.
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23
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Jagielska A, Ruszczyńska A, Wagner B, Bulska E, Skrajnowska D, Bobrowska-Korczak B. ICP-MS analysis of diet supplementation influence on the elemental content of rat prostate gland. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02473-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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Zhang P, Georgiou CA, Brusic V. Elemental metabolomics. Brief Bioinform 2019; 19:524-536. [PMID: 28077402 DOI: 10.1093/bib/bbw131] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 11/24/2016] [Indexed: 12/14/2022] Open
Abstract
Elemental metabolomics is quantification and characterization of total concentration of chemical elements in biological samples and monitoring of their changes. Recent advances in inductively coupled plasma mass spectrometry have enabled simultaneous measurement of concentrations of > 70 elements in biological samples. In living organisms, elements interact and compete with each other for absorption and molecular interactions. They also interact with proteins and nucleotide sequences. These interactions modulate enzymatic activities and are critical for many molecular and cellular functions. Testing for concentration of > 40 elements in blood, other bodily fluids and tissues is now in routine use in advanced medical laboratories. In this article, we define the basic concepts of elemental metabolomics, summarize standards and workflows, and propose minimum information for reporting the results of an elemental metabolomics experiment. Major statistical and informatics tools for elemental metabolomics are reviewed, and examples of applications are discussed. Elemental metabolomics is emerging as an important new technology with applications in medical diagnostics, nutrition, agriculture, food science, environmental science and multiplicity of other areas.
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Affiliation(s)
- Ping Zhang
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD Australia
| | - Constantinos A Georgiou
- Chemistry Laboratory, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Vladimir Brusic
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD Australia.,School of Medicine and Bioinformatics Center, Nazarbayev University, Astana, Kazakhstan
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25
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Samavarchi Tehrani S, Mahmoodzadeh Hosseini H, Yousefi T, Abolghasemi M, Qujeq D, Maniati M, Amani J. The crosstalk between trace elements with DNA damage response, repair, and oxidative stress in cancer. J Cell Biochem 2019; 120:1080-1105. [PMID: 30378148 DOI: 10.1002/jcb.27617] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 08/14/2018] [Indexed: 01/24/2023]
Abstract
DNA damage response (DDR) is a regulatory system responsible for maintaining genome integrity and stability, which can sense and transduce DNA damage signals. The severity of damage appears to determine DDRs, which can include damage repair, cell-cycle arrest, and apoptosis. Furthermore, defective components in DNA damage and repair machinery are an underlying cause for the development and progression of various types of cancers. Increasing evidence indicates that there is an association between trace elements and DDR/repair mechanisms. In fact, trace elements seem to affect mediators of DDR. Besides, it has been revealed that oxidative stress (OS) and trace elements are associated with cancer development. In this review, we discuss the role of some critical trace elements in the risk of cancer. In addition, we provide a brief introduction on DDR and OS in cancer. Finally, we will further review the interactions between some important trace elements including selenium, zinc, chromium, cadmium, and arsenic, and DDR, and OS in cancer.
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Affiliation(s)
- Sadra Samavarchi Tehrani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hamideh Mahmoodzadeh Hosseini
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Tooba Yousefi
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Abolghasemi
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Durdi Qujeq
- Department of Clinical Biochemistry, Babol University of Medical Sciences, Babol, Iran
| | - Mahmood Maniati
- English Department, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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26
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Sohrabi M, Gholami A, Azar MH, Yaghoobi M, Shahi MM, Shirmardi S, Nikkhah M, Kohi Z, Salehpour D, Khoonsari MR, Hemmasi G, Zamani F, Sohrabi M, Ajdarkosh H. Trace Element and Heavy Metal Levels in Colorectal Cancer: Comparison Between Cancerous and Non-cancerous Tissues. Biol Trace Elem Res 2018; 183:1-8. [PMID: 28795369 DOI: 10.1007/s12011-017-1099-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 07/10/2017] [Indexed: 11/30/2022]
Abstract
Cases of colorectal cancer (CRC) have increased dramatically in Middle Eastern and other Asian countries. Many studies indicate an important role of environmental factors, including trace elements as an etiology of cancer. This study aims to assess the concentration of eight trace elements in cancerous and adjacent non-cancerous tissues in case of CRC. In a cross-sectional study, conducted between March 2015 and February 2016, zinc (Zn), chromium (Cr), manganese (Mn), tin (Sn), copper (Cu), aluminum (Al), lead (Pb), and iron (Fe) levels were evaluated among patients suffering from CRC. All the patients underwent a full colonoscopy. Multiple samples were taken from cancerous lesions and adjacent healthy tissues that kept a minimum distance of 10 cm from the lesions. These specimens were kept at -80 °C. The classic flame atomic absorption spectroscopy (FAAS) method was applied in this study. The mean age of the study population was 55.6 ± 12.8. The median of Zn, Cr, Cu, Al, and Pb in cancerous tissues was significantly higher than that of healthy tissues (P < 0.05). Nevertheless, the median of Mn, Sn, and Fe was significantly lower than that of non-cancerous tissues (P < 0.05). Between colon and rectal specimens, we did not find a difference between Cr and Al levels and Zn, Sn, and Cu levels in cancerous and healthy tissues, respectively. We revealed that gender and history of smoking may influence the level of some trace elements. We revealed that the levels of eight elements were significantly different for cancerous and healthy tissues. This may play a role in developing CRC. These findings reflect the importance of environmental pollution in this setting.
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Affiliation(s)
- Masoudreza Sohrabi
- Gastrointestinal and Liver Disease Research Center (GILDRC), Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Gholami
- Department of Public Health, School of Public Health, Neyshabur University of Medical Sciences, Neyshabur, Iran
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Yaghoobi
- Division of Gastroenterology, Department of Medicine, Faculty of Health Science, Mc Master University, Hamilton, Canada
| | - Maryamosadat Mirasgari Shahi
- Department of Analytic Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran
| | - Solmaz Shirmardi
- Department of Analytic Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran
| | - Mehdi Nikkhah
- Gastrointestinal and Liver Disease Research Center (GILDRC), Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Kohi
- Department of Analytic Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran
| | - Delaram Salehpour
- Department of Analytic Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran
| | - Mahmood Reza Khoonsari
- Gastrointestinal and Liver Disease Research Center (GILDRC), Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Gholamrez Hemmasi
- Gastrointestinal and Liver Disease Research Center (GILDRC), Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Farhad Zamani
- Gastrointestinal and Liver Disease Research Center (GILDRC), Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmoudreza Sohrabi
- Department of Analytic Chemistry, Faculty of Basic Sciences, Tehran Islamic Azad University, North Branch, Tehran, Iran.
| | - Hossein Ajdarkosh
- Gastrointestinal and Liver Disease Research Center (GILDRC), Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran.
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27
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Kleiner D, Szilvás Á, Szentmihályi K, Süle K, Blázovics A. Changes of erythrocyte element status of colectomysed cancerous patients: Retrospective study. J Trace Elem Med Biol 2016; 33:8-13. [PMID: 26653737 DOI: 10.1016/j.jtemb.2015.07.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 07/27/2015] [Accepted: 07/31/2015] [Indexed: 10/23/2022]
Abstract
Nowadays it has been established that metals and metal-induced oxidative stress act on signal transduction pathways, and are in association with cancer growth and spreading as well as in neurodegenerative disorders. In cases of several neurodegenerative diseases metals, especially Al, can be considered as a risk factor. Frequency of chemotherapy-related cognitive impairment or "chemobrain" is mentioned to be significant in literature, although very little is known about the chemotherapy-caused chemobrain and its connection with metal homeostasis alteration. Dysregulation of metal homeostasis can be assumed as one of the key factors in the progression of neurodegeneration. Therefore we were interested in studying metal element status of 27 adult patients in 3 years after their colectomy, 22 outpatients and 10 healthy volunteers in both genders. Tumour markers, laboratory parameters and metal element concentrations were determined. We found significant difference among the Al concentrations in operated patients compared with controls. Redox active Fe and Cu levels were also elevated slightly in this patient group. P and S concentrations changed in different ways, and Ca levels were slightly lower, than in healthy controls. Because of all above mentioned, examination of metal homeostasis in cancerous patients is necessary to moderate the risk of chemobrain and other redox-related disorders.
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Affiliation(s)
- Dénes Kleiner
- Department of Pharmacognosy, Semmelweis University, Üllői Road 26, H-1085 Budapest, Hungary.
| | - Ágnes Szilvás
- 1st Department of Gastroenterology, Saint John Hospital, Diós árok 1-3, H-1125 Budapest, Hungary
| | - Klára Szentmihályi
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences of the HAS, Magyar tudósok boulevard 2, H- 1117 Budapest, Hungary
| | - Krisztina Süle
- Department of Pharmacognosy, Semmelweis University, Üllői Road 26, H-1085 Budapest, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences of the HAS, Magyar tudósok boulevard 2, H- 1117 Budapest, Hungary
| | - Anna Blázovics
- Department of Pharmacognosy, Semmelweis University, Üllői Road 26, H-1085 Budapest, Hungary
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Rinaldi L, Barabino G, Klein JP, Bitounis D, Pourchez J, Forest V, Boudard D, Leclerc L, Sarry G, Roblin X, Cottier M, Phelip JM. Metals distribution in colorectal biopsies: New insight on the elemental fingerprint of tumour tissue. Dig Liver Dis 2015; 47:602-7. [PMID: 25869551 DOI: 10.1016/j.dld.2015.03.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 02/24/2015] [Accepted: 03/15/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Some studies have linked colorectal cancer to metal exposure. AIMS Our objective was to evaluate the element distribution in colorectal adenocarcinoma biopsies, adjacent non-tumour tissues, and healthy controls. METHODS The study is a case-control study which compared the element distribution in colon biopsies from two groups of patients: with colorectal cancer (2 types of samples: colorectal cancer biopsies and adjacent non-tumour tissues) and healthy controls. Fifteen metal concentrations (Aluminium, Boron, Cadmium, Chromium, Copper, Iron, Magnesium, Manganese, Nickel, Lead, Selenium, Silicon, Titanium, Vanadium, and Zinc) were quantified by using inductively coupled plasma atomic emission spectrometry. RESULTS 104 patients were included: 76 in the colorectal cancer group, 28 in the healthy control group. Among the 15 elements analyzed, only boron, chromium, zinc, silicon and magnesium were found at clearly detectable concentrations. Colorectal tumour biopsies had significantly higher concentrations of magnesium as compared to adjacent non-tumour or healthy tissues. Zinc concentration followed the same trend but differences were not statistically significant. In addition, concentration of silicon was higher in colorectal cancer tissue than in healthy non-cancer tissue, while chromium was mostly found in adjacent non-tumour tissue. CONCLUSION Magnesium, chromium, zinc and silicon were found in noteworthy concentrations in colorectal tumour. Their potential role in colorectal carcinogenesis should be explored.
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Affiliation(s)
- Leslie Rinaldi
- University of Lyon, F-42023 Saint-Etienne, France; Jean Monnet University, EA 4624 - LINA, SFR FED 4166 - IFRESIS, France; University Hospital CHU Saint-Etienne, France.
| | - Gabriele Barabino
- University of Lyon, F-42023 Saint-Etienne, France; Jean Monnet University, EA 4624 - LINA, SFR FED 4166 - IFRESIS, France; University Hospital CHU Saint-Etienne, France
| | - Jean-Philippe Klein
- University of Lyon, F-42023 Saint-Etienne, France; Jean Monnet University, EA 4624 - LINA, SFR FED 4166 - IFRESIS, France; University Hospital CHU Saint-Etienne, France
| | - Dimitrios Bitounis
- University of Lyon, F-42023 Saint-Etienne, France; Jean Monnet University, EA 4624 - LINA, SFR FED 4166 - IFRESIS, France
| | - Jérémie Pourchez
- Ecole Nationale Supérieure des Mines, CIS-EMSE, EA 4624 - LINA, SFR FED 4166 - IFRESIS, Saint-Etienne, France
| | - Valérie Forest
- Ecole Nationale Supérieure des Mines, CIS-EMSE, EA 4624 - LINA, SFR FED 4166 - IFRESIS, Saint-Etienne, France
| | - Delphine Boudard
- University of Lyon, F-42023 Saint-Etienne, France; Jean Monnet University, EA 4624 - LINA, SFR FED 4166 - IFRESIS, France; University Hospital CHU Saint-Etienne, France
| | - Lara Leclerc
- Ecole Nationale Supérieure des Mines, CIS-EMSE, EA 4624 - LINA, SFR FED 4166 - IFRESIS, Saint-Etienne, France
| | - Gwendoline Sarry
- Ecole Nationale Supérieure des Mines, CIS-EMSE, EA 4624 - LINA, SFR FED 4166 - IFRESIS, Saint-Etienne, France
| | | | - Michèle Cottier
- University of Lyon, F-42023 Saint-Etienne, France; Jean Monnet University, EA 4624 - LINA, SFR FED 4166 - IFRESIS, France; University Hospital CHU Saint-Etienne, France
| | - Jean-Marc Phelip
- University of Lyon, F-42023 Saint-Etienne, France; Jean Monnet University, EA 4624 - LINA, SFR FED 4166 - IFRESIS, France; University Hospital CHU Saint-Etienne, France
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Concentrations of cadmium and selected essential elements in malignant large intestine tissue. GASTROENTEROLOGY REVIEW 2015; 11:24-9. [PMID: 27110307 PMCID: PMC4814536 DOI: 10.5114/pg.2015.52563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 02/11/2015] [Indexed: 11/17/2022]
Abstract
Introduction Colorectal cancer is one of the most common cancers worldwide. Incidence rates of large intestine cancer indicate a role of environmental and occupational factors. The role of essential elements and their interaction with toxic metals can contribute to the explanation of a complex mechanism by which large intestine cancer develops. Bearing this in mind, determining the levels of essential and toxic elements in tissues (organs), as well as in body fluids, seems to shed light on their role in the mode of action in malignant disease. Aim Determination of the levels of cadmium, zinc, copper, selenium, calcium, magnesium, and iron in large intestine malignant tissue. Material and methods Two intraoperative intestine sections were investigated: one from the malignant tissue and the other one from the normal tissue, collected from each person with diagnosed large intestine cancer. Cadmium, zinc, copper, calcium, magnesium, and iron levels were determined with atomic absorption spectrometry, and selenium levels by spectrofluorimetric method. Results The levels of copper, selenium, and magnesium were higher in the malignant than in normal tissues. In addition, the zinc/copper and calcium/magnesium relationship was altered in malignant tissue, where correlations were lower compared to non-malignant tissue. Conclusions The results seems to demonstrate disturbed homeostasis of some essential elements. However, it is hard to confirm their involvement in the aetiology of colorectal cancer.
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Synergistic Effect of Zuo Jin Wan on DDP-Induced Apoptosis in Human Gastric Cancer SGC-7901/DDP Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:724764. [PMID: 24723962 PMCID: PMC3958763 DOI: 10.1155/2014/724764] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 01/28/2014] [Indexed: 11/18/2022]
Abstract
A traditional Chinese medicine (TCM) formula, Zuo Jin Wan (ZJW), has been found as an anticancer drug in human cancer. In this study, we investigated the synergistic effect of ZJW extracts on DDP-induced apoptosis in human gastric cancer SGC-7901/DDP cells. Our results demonstrated that ZJW extracts could increase the sensitivity of SGC-7901/DDP cells to DDP by increasing the concentration of DDP in cytoplasm and enhance the proapoptosis of DDP by upregulating the JNK and Bax expression, downregulating the Bcl-2 expression, increasing the accumulation of Cytochrome C in cytoplasm, and promoting the activities of caspase-3 and caspase-9. In vivo, ZJW extracts enhanced the inhibiting effect of DDP on tumor growth in SGC-7901/DDP xenograft model and upregulated the expression of p-JNK and Bax but downregulated the Bcl-2 expression in xenograft tumors. In conclusion, in vitro and in vivo, ZJW extracts could enhance the proapoptotic effect of DDP by promoting the activation of JNK and the expression of Bcl-2, inhibiting the Bax expression, followed by increasing the release of Cytochrome C from mitochondria to cytoplasm, and finally activating the caspase cade reaction. Our results implied that ZJW might serve as a synergistic drug with chemotherapeutic drugs DDP in the treatment of gastric cancer.
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Kaburaki Y, Nomura A, Ishihara Y, Iwai T, Miyahara H, Okino A. Development of injection gas heating system for introducing large droplets to inductively coupled plasma. ANAL SCI 2013; 29:1147-51. [PMID: 24334979 DOI: 10.2116/analsci.29.1147] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We developed an injection gas heating system for introducing large droplets, because we want to effectively to measure elements in a single cell. This system was applied to ICP-atomic emission spectrometry (ICP-AES), to evaluate it performance. To evaluate the effect of the emission intensity, the emission intensity of Ca(II) increased to a maximum of tenfold at 147°C and the peak was shifted upstream of the plasma. To investigate in detail the effect of an injection gas heating system, we studied different conditions of the injection gas temperature and droplet volume. When the injection gas temperature was 89°C, smaller droplets were easily ionized. At 147°C, the emission intensity ratio and the absolute amount of the sample including the droplet exhibited close agreement. These results show the advantages of the injection gas heating system for large droplet introduction, and the sufficient reduction in the solvent load. The solvent load could be reduced by heating to 147°C using the system.
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Affiliation(s)
- Yuki Kaburaki
- Department of Energy Sciences, Tokyo Institute of Technology
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Inductively coupled plasma-MS in drug development: bioanalytical aspects and applications. Bioanalysis 2013; 4:1933-65. [PMID: 22943623 DOI: 10.4155/bio.12.141] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The vast majority of today's modern bioanalytical methods for pharmacokinetic, pharmacodynamic and immunogenicity purposes are based on LC-MS/MS and immunoanalytical approaches. Indeed, these methodologies are suitable for a wide range of molecules from small to large. For a smaller but not insignificant group of compounds, LC-MS/MS is not suitable - or in some cases much less suitable - as a reliable bioanalytical methodology, and inductively coupled plasma (ICP)-MS is a more appropriate methodology. ICP-MS is one of these less widely used techniques in drug development. This methodology is predominantly used for elemental bioanalysis for pharmacokinetics, for imaging purposes, for mass-balance, food-effect and biomarker studies. In addition, in the last couple of years an increasing number of applications has been published, where ICP-MS and its various hyphenations (LC-ICP-MS, CE-ICP-MS) have been used for speciation/metabolism and proteomics studies. Here, the analytical potential, the quantitative bioanalytical aspects, the various modes of operation and the challenges of the application of ICP-MS in life sciences applications are given. This includes an overview of recent applications in this area in scientific literature, the various hyphenation possibilities and their application areas and the analysis of the various sample matrices applicable to these fields. It also provides a brief outlook of where the potential of this technique lies in the future of regulated bioanalysis and drug development.
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Matsuyama S, Matsunaga A, Sakamoto S, Iida Y, Suzuki Y, Ishizaka Y, Yamauchi K, Ishikawa T, Shimura M. Scanning protein analysis of electrofocusing gels using X-ray fluorescence. Metallomics 2013; 5:492-500. [DOI: 10.1039/c3mt20266f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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First step toward the “fingerprinting” of brain tumors based on synchrotron radiation X-ray fluorescence and multiple discriminant analysis. J Biol Inorg Chem 2011; 16:1217-26. [DOI: 10.1007/s00775-011-0810-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Accepted: 06/21/2011] [Indexed: 10/18/2022]
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Forester SC, Lambert JD. The role of antioxidant versus pro-oxidant effects of green tea polyphenols in cancer prevention. Mol Nutr Food Res 2011; 55:844-54. [PMID: 21538850 DOI: 10.1002/mnfr.201000641] [Citation(s) in RCA: 210] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 02/25/2011] [Accepted: 03/17/2011] [Indexed: 12/21/2022]
Abstract
Consumption of green tea (Camellia sinensis) may provide protection against chronic diseases, including cancer. Green tea polyphenols are believed to be responsible for this cancer preventive effect, and the antioxidant activity of the green tea polyphenols has been implicated as a potential mechanism. This hypothesis has been difficult to study in vivo due to metabolism of these compounds and poor understanding of the redox environment in vivo. Green tea polyphenols can be direct antioxidants by scavenging reactive oxygen species or chelating transition metals as has been demonstrated in vitro. Alternatively, they may act indirectly by upregulating phase II antioxidant enzymes. Evidence of this latter effect has been observed in vivo, yet more work is required to determine under which conditions these mechanisms occur. Green tea polyphenols can also be potent pro-oxidants, both in vitro and in vivo, leading to the formation of hydrogen peroxide, the hydroxyl radical, and superoxide anion. The potential role of these pro-oxidant effects in the cancer preventive activity of green tea is not well understood. The evidence for not only the antioxidant, but also pro-oxidant, properties of green tea is discussed in the present review.
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Affiliation(s)
- Sarah C Forester
- Department of Food Science, The Pennsylvania State University, University Park, PA, USA
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