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Farhi A, Fatima K, Firdaus F. Dual Fluorimetric Sensor for Tandem Detection of Cadmium and Cysteine: An Approach for Designing a Molecular Keypad Lock System. J Fluoresc 2024:10.1007/s10895-024-03588-x. [PMID: 38305988 DOI: 10.1007/s10895-024-03588-x] [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: 12/09/2023] [Accepted: 01/14/2024] [Indexed: 02/03/2024]
Abstract
A fluorimetric sensor for dual and sensitive detection of Cd2+ ion and Cysteine (based on 2-picolylamine platform) was developed.The sensor was designed and synthesized by simple condensation method and characterized by using common spectroscopic methods. The observations made from the kinetics of absorption and emission profile shows that probe Pdac behaves as ''ON-OFF'' fluorescent quenching sensor for cadmium ions. The probe exhibit selectivity in fluorescence quenching behaviour over other competitive metal ions, and also the Pdac-Cd2+ ensemble behave as an efficient ''OFF-ON'' type sensor for an essential amino acid Cysteine. Moreover, this dual sensing nature of the sensor makes it successfully applied for the designing of a molecular keypad lock system.
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Affiliation(s)
- Atika Farhi
- Department of Chemistry, Aligarh Muslim University, Aligarh, India.
| | - Kaneez Fatima
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Farha Firdaus
- Chemistry Section, Women's College, Aligarh Muslim University, Aligarh, India.
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2
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Peitz JG, Adebamowo CA, Adebamowo SN. Association between Serum Folate and Vaginal High-Risk Human Papillomavirus Infections in United States Women. J Nutr 2024; 154:583-589. [PMID: 38158185 PMCID: PMC10900188 DOI: 10.1016/j.tjnut.2023.12.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND Serum concentration of folate was inversely associated with cervical intraepithelial neoplasia and cervical cancer in some studies. The association between folate and human papillomavirus (HPV) infection, a necessary cause of cervical cancer, has not been well elucidated. OBJECTIVES We evaluated whether serum folate concentrations were associated with high-risk HPV (hrHPV) infection. METHODS The study population was 11,801 females, aged 18-59 y, enrolled in the National Health and Nutrition Examination Survey (NHANES), from 2003 to 2016, in the United States. In this cross-sectional study, prevalence ratios (PRs) of vaginal hrHPV were calculated using logistic regression models, by quintiles of serum folate. RESULTS Females in the lowest quintile had <21.3 nmol/L of folate. Approximately 23% of the females (2733/11,801) were hrHPV positive. In age-adjusted models, folate was significantly associated with hrHPV infection. The PRs and 95% confidence intervals (CIs) were (PR: 1.52; 95% CI: 1.37, 1.70) for the first, (PR: 1.29; 95% CI: 1.15, 1.44) for the second, (PR: 1.19; 95% CI: 1.06, 1.34) for the third, and (PR: 1.09; 95% CI: 0.96, 1.23) for the fourth quintiles, compared with the females in the highest quintile, with a significant P value for trend, <0.0001. The association remained statistically significant after the models were further adjusted for lifestyle and sexual risk factors for hrHPV infection; the females in the lowest quintile were more likely to have hrHPV infection than those in the highest quintile (PR: 1.40; 95% CI: 1.11, 1.53). CONCLUSIONS Results from this sample of females in the United States suggest that serum folate concentration is inversely associated with hrHPV infection.
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Affiliation(s)
- Josephine G Peitz
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, United States; University of Maryland Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Clement A Adebamowo
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, United States; University of Maryland Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Sally N Adebamowo
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, United States; University of Maryland Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, United States.
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3
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Tan H, Zou Y, Guo J, Chen J, Zhou L. A simple lysosome-targeted fluorescent probe based on flavonoid for detection of cysteine in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121552. [PMID: 35759931 DOI: 10.1016/j.saa.2022.121552] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/17/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Cysteine (Cys) is one of the most important biothiols that plays a crucial role in many physiological and pathological processes, and therefore it is of great importance to detect and analyze Cys in subcellular environments, such as in lysosomes. However, only a few fluorescent probes were reported to be capable of detecting Cys in lysosomes selectively. In this wok, we designed and developed a simple, accessible flavone-based fluorescent probe LFA for detecting Cys in lysosomes. Morpholine was employed as the targeting unit for lysosome, and acrylate group was chosen as the Cys-response unit. The probe was easily prepared by a two-step procedure and displayed large Stokes shift, high sensitivity, turn-on response toward Cys over homocysteine (Hcy), glutathione (GSH), and other amino acids. With low cytotoxicity and good cell permeability, the probe could be successfully applied for fluorescence imaging of Cys in living cells. Furthermore, colocalization experiment revealed that lysosomal-targetable ability of LFA was significant. These results indicated that such simple fluorescent probe could provide a promising tool for detection of lysosomal Cys in living biological systems.
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Affiliation(s)
- Huiya Tan
- Key Laboratory of Occupational Environment and Health, Guangzhou Twelfth People's Hospital, No. 1 Tianqiang Road, Tianhe District, Guangzhou 510620, Guangdong, PR China; Medical Devices Research & Testing Center, South China University of Technology, Guangzhou 510006, Guangdong, PR China
| | - Yake Zou
- Medical Devices Research & Testing Center, South China University of Technology, Guangzhou 510006, Guangdong, PR China
| | - Jiaming Guo
- Key Laboratory of Occupational Environment and Health, Guangzhou Twelfth People's Hospital, No. 1 Tianqiang Road, Tianhe District, Guangzhou 510620, Guangdong, PR China
| | - Jiu Chen
- Key Laboratory of Occupational Environment and Health, Guangzhou Twelfth People's Hospital, No. 1 Tianqiang Road, Tianhe District, Guangzhou 510620, Guangdong, PR China
| | - Liping Zhou
- Key Laboratory of Occupational Environment and Health, Guangzhou Twelfth People's Hospital, No. 1 Tianqiang Road, Tianhe District, Guangzhou 510620, Guangdong, PR China.
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4
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Subasinghe SAAS, Pautler RG, Samee MAH, Yustein JT, Allen MJ. Dual-Mode Tumor Imaging Using Probes That Are Responsive to Hypoxia-Induced Pathological Conditions. BIOSENSORS 2022; 12:478. [PMID: 35884281 PMCID: PMC9313010 DOI: 10.3390/bios12070478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/22/2022] [Accepted: 06/26/2022] [Indexed: 05/02/2023]
Abstract
Hypoxia in solid tumors is associated with poor prognosis, increased aggressiveness, and strong resistance to therapeutics, making accurate monitoring of hypoxia important. Several imaging modalities have been used to study hypoxia, but each modality has inherent limitations. The use of a second modality can compensate for the limitations and validate the results of any single imaging modality. In this review, we describe dual-mode imaging systems for the detection of hypoxia that have been reported since the start of the 21st century. First, we provide a brief overview of the hallmarks of hypoxia used for imaging and the imaging modalities used to detect hypoxia, including optical imaging, ultrasound imaging, photoacoustic imaging, single-photon emission tomography, X-ray computed tomography, positron emission tomography, Cerenkov radiation energy transfer imaging, magnetic resonance imaging, electron paramagnetic resonance imaging, magnetic particle imaging, and surface-enhanced Raman spectroscopy, and mass spectrometric imaging. These overviews are followed by examples of hypoxia-relevant imaging using a mixture of probes for complementary single-mode imaging techniques. Then, we describe dual-mode molecular switches that are responsive in multiple imaging modalities to at least one hypoxia-induced pathological change. Finally, we offer future perspectives toward dual-mode imaging of hypoxia and hypoxia-induced pathophysiological changes in tumor microenvironments.
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Affiliation(s)
| | - Robia G. Pautler
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX 77030, USA; (R.G.P.); (M.A.H.S.)
| | - Md. Abul Hassan Samee
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX 77030, USA; (R.G.P.); (M.A.H.S.)
| | - Jason T. Yustein
- Integrative Molecular and Biomedical Sciences and the Department of Pediatrics in the Texas Children’s Cancer and Hematology Centers and The Faris D. Virani Ewing Sarcoma Center, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Matthew J. Allen
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA;
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5
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Sevalkar RR, Glasgow JN, Pettinati M, Marti MA, Reddy VP, Basu S, Alipour E, Kim-Shapiro DB, Estrin DA, Lancaster JR, Steyn AJC. Mycobacterium tuberculosis DosS binds H 2S through its Fe 3+ heme iron to regulate the DosR dormancy regulon. Redox Biol 2022; 52:102316. [PMID: 35489241 PMCID: PMC9062744 DOI: 10.1016/j.redox.2022.102316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/06/2022] [Accepted: 04/16/2022] [Indexed: 01/14/2023] Open
Abstract
Mycobacterium tuberculosis (Mtb) senses and responds to host-derived gasotransmitters NO and CO via heme-containing sensor kinases DosS and DosT and the response regulator DosR. Hydrogen sulfide (H2S) is an important signaling molecule in mammals, but its role in Mtb physiology is unclear. We have previously shown that exogenous H2S can modulate expression of genes in the Dos dormancy regulon via an unknown mechanism(s). Here, we test the hypothesis that Mtb senses and responds to H2S via the DosS/T/R system. Using UV-Vis and EPR spectroscopy, we show that H2S binds directly to the ferric (Fe3+) heme of DosS (KDapp = 5.30 μM) but not the ferrous (Fe2+) form. No interaction with DosT(Fe2+-O2) was detected. We found that the binding of sulfide can slowly reduce the DosS heme iron to the ferrous form. Steered Molecular Dynamics simulations show that H2S, and not the charged HS- species, can enter the DosS heme pocket. We also show that H2S increases DosS autokinase activity and subsequent phosphorylation of DosR, and H2S-mediated increases in Dos regulon gene expression is lost in Mtb lacking DosS. Finally, we demonstrate that physiological levels of H2S in macrophages can induce DosR regulon genes via DosS. Overall, these data reveal a novel mechanism whereby Mtb senses and responds to a third host gasotransmitter, H2S, via DosS(Fe3+). These findings highlight the remarkable plasticity of DosS and establish a new paradigm for how bacteria can sense multiple gasotransmitters through a single heme sensor kinase.
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Affiliation(s)
- Ritesh R Sevalkar
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Joel N Glasgow
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Martín Pettinati
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE), Buenos Aires, Argentina
| | - Marcelo A Marti
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Química Biológica (IQUIBICEN), Buenos Aires, Argentina
| | - Vineel P Reddy
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Swati Basu
- Department of Physics, Wake Forest University, Winston-Salem, NC, USA
| | - Elmira Alipour
- Department of Physics, Wake Forest University, Winston-Salem, NC, USA
| | | | - Dario A Estrin
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE), Buenos Aires, Argentina
| | - Jack R Lancaster
- Department of Pharmacology & Chemical Biology, Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Adrie J C Steyn
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA; Centers for AIDS Research and Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL, USA; Africa Health Research Institute, University of KwaZulu-Natal, Durban, South Africa.
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Evaluation of dynamic thiol–disulfide balance in preinvasive lesions of the cervix. Arch Gynecol Obstet 2021; 305:617-623. [DOI: 10.1007/s00404-021-06252-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 09/09/2021] [Indexed: 11/25/2022]
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7
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Assi N, Nejdl L, Zemankova K, Pavelicova K, Bezdekova J, Macka M, Adam V, Vaculovicova M. UV-induced Zn:Cd/S quantum dots in-situ formed in the presence of thiols for sensitive and selective fluorescence detection of thiols. Sci Rep 2021; 11:13806. [PMID: 34226580 PMCID: PMC8257596 DOI: 10.1038/s41598-021-93137-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/13/2021] [Indexed: 11/24/2022] Open
Abstract
In this work, we explored a new approach to a simple and sensitive fluorescence detection of thiols. The approach takes advantage of an in-situ formation of UV light-induced fluorescent nanoparticles (ZnCd/S quantum dots), while utilizing the thiol group of the analyte as a capping agent. The selectivity is ensured by the selective isolation of the thiol analyte by a polydopamine molecularly imprinted polymeric (MIP) layer. Based on this approach, a method for determination of thiols was designed. Key experimental parameters were optimized, including those of molecular imprinting and of effective model thiol molecule (L-cysteine) isolation. The relationship between the fluorescence intensity of ZnCd/S quantum dots and the concentration of L-cysteine in the range of 12-150 µg/mL was linear with a detection limit of 3.6 µg/mL. The molecularly imprinted polymer showed high absorption mass capacity (1.73 mg/g) and an excellent selectivity factor for L-cysteine compared to N-acetyl-L-cysteine and L-homocysteine of 63.56 and 87.48, respectively. The proposed method was applied for L-cysteine determination in human urine with satisfactory results. Due to a high variability of molecular imprinting technology and versatility of in-situ probe formation, methods based on this approach can be easily adopted for analysis of any thiol of interest.
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Affiliation(s)
- Navid Assi
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Lukas Nejdl
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Kristyna Zemankova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Kristyna Pavelicova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Jaroslava Bezdekova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Mirek Macka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic
| | - Marketa Vaculovicova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00, Brno, Czech Republic.
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8
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Yang Y, Zhang L, Zhang X, Liu S, Wang Y, Zhang L, Ma Z, You H, Chen L. A cysteine-selective fluorescent probe for monitoring stress response cysteine fluctuations. Chem Commun (Camb) 2021; 57:5810-5813. [PMID: 33999987 DOI: 10.1039/d1cc01110c] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Rare studies provided evidence for the real-time monitoring of stress response cysteine fluctuations. Here, we have successfully designed and synthesized a cysteine-selective fluorescent probe 1 to monitor stress response Cys fluctuations, providing visual evidence of Hg2+ regulated cysteine fluctuations for the first time, which may open a new way to help researchers to reveal the mechanism of heavy metal ion poisoning.
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Affiliation(s)
- Yang Yang
- College of Environment and Chemical Engineering, Dalian University, Dalian 116622, China. and CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Liangwei Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Xia Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Shudi Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Yue Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Li Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Zhuo Ma
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Huiyan You
- College of Environment and Chemical Engineering, Dalian University, Dalian 116622, China.
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China. and Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
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9
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Shcherbatykh AA, Chernov’yants MS. Study of Antithyroid and Antioxidant Properties of Cysteine, Glutathione, and Methionine by Spectrophotometry and High Performance Liquid Chromatography. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821040109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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10
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Bonifácio VDB, Pereira SA, Serpa J, Vicente JB. Cysteine metabolic circuitries: druggable targets in cancer. Br J Cancer 2021; 124:862-879. [PMID: 33223534 PMCID: PMC7921671 DOI: 10.1038/s41416-020-01156-1] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 09/03/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023] Open
Abstract
To enable survival in adverse conditions, cancer cells undergo global metabolic adaptations. The amino acid cysteine actively contributes to cancer metabolic remodelling on three different levels: first, in its free form, in redox control, as a component of the antioxidant glutathione or its involvement in protein s-cysteinylation, a reversible post-translational modification; second, as a substrate for the production of hydrogen sulphide (H2S), which feeds the mitochondrial electron transfer chain and mediates per-sulphidation of ATPase and glycolytic enzymes, thereby stimulating cellular bioenergetics; and, finally, as a carbon source for epigenetic regulation, biomass production and energy production. This review will provide a systematic portrayal of the role of cysteine in cancer biology as a source of carbon and sulphur atoms, the pivotal role of cysteine in different metabolic pathways and the importance of H2S as an energetic substrate and signalling molecule. The different pools of cysteine in the cell and within the body, and their putative use as prognostic cancer markers will be also addressed. Finally, we will discuss the pharmacological means and potential of targeting cysteine metabolism for the treatment of cancer.
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Affiliation(s)
- Vasco D B Bonifácio
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001, Lisboa, Portugal
| | - Sofia A Pereira
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056, Lisboa, Portugal
| | - Jacinta Serpa
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056, Lisboa, Portugal.
- Instituto Português de Oncologia de Lisboa Francisco Gentil (IPOLFG), Rua Prof Lima Basto, 1099-023, Lisboa, Portugal.
| | - João B Vicente
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Avenida da República (EAN), 2780-157, Oeiras, Portugal
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Cao C, Feng Y, Li H, Yang Y, Song X, Wang Y, Zhang G, Dou W, Liu W. A simple highly selective probe for discriminative visualization of endogenous cysteine, homocysteine and glutathione in living cells via three separated fluorescence channels. Talanta 2020; 219:121353. [DOI: 10.1016/j.talanta.2020.121353] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/20/2020] [Accepted: 06/24/2020] [Indexed: 01/10/2023]
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12
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Visible colorimetric sensing of cysteine based on Au nanoparticle modified ZIF-67. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-01032-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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13
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Yin G, Niu T, Yu T, Gan Y, Sun X, Yin P, Chen H, Zhang Y, Li H, Yao S. Simultaneous Visualization of Endogenous Homocysteine, Cysteine, Glutathione, and their Transformation through Different Fluorescence Channels. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813935] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Guoxing Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Tingting Niu
- Key Laboratory of Marine Biotechnology of Zhejiang Province Ningbo University Ningbo Zhejiang 315211 P. R. China
| | - Ting Yu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Yabing Gan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Xinyu Sun
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Peng Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Haimin Chen
- Key Laboratory of Marine Biotechnology of Zhejiang Province Ningbo University Ningbo Zhejiang 315211 P. R. China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Shouzhuo Yao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
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14
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Yin G, Niu T, Yu T, Gan Y, Sun X, Yin P, Chen H, Zhang Y, Li H, Yao S. Simultaneous Visualization of Endogenous Homocysteine, Cysteine, Glutathione, and their Transformation through Different Fluorescence Channels. Angew Chem Int Ed Engl 2019; 58:4557-4561. [DOI: 10.1002/anie.201813935] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/21/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Guoxing Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Tingting Niu
- Key Laboratory of Marine Biotechnology of Zhejiang Province Ningbo University Ningbo Zhejiang 315211 P. R. China
| | - Ting Yu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Yabing Gan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Xinyu Sun
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Peng Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Haimin Chen
- Key Laboratory of Marine Biotechnology of Zhejiang Province Ningbo University Ningbo Zhejiang 315211 P. R. China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
| | - Shouzhuo Yao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province Hunan Normal University Changsha 410081 China
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15
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Abstract
Abstract
Folic acid is a naturally occurring pteridine, which was originally isolated from plants. Folic acid (pteroyl-glutamic acid) is composed of pteridine (6-methylptero), p-aminobenzoic acid (PABA) and glutamic acid. Folic acid (folacin) is a compound of major importance for the proper functioning of the human body. Its adequate supply is essential for the proper course of many biochemical processes in the body, including the process of neural tube closure in the fetus, DNA and amino acid synthesis, growth of red blood cells, and the function of the nervous system. Folic acid is a compound of a high sensitivity to physical and chemical factors, and its bioavailability is limited by interactions with multiple food components. Therefore, folate deficiency is one of the most common deficiencies. This paper presents the structure and characteristics of folic acid as a pteridine, it also discusses dietary sources of folate and the effects of its deficiency.
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Affiliation(s)
- Ewa Cieślik
- University of Agriculture in Krakow, Krakow , Poland
| | - Iwona Cieślik
- University of Agriculture in Cracow, Department of Culinary Technology And Consumption, Krakow , Poland
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16
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Lyu T, Liu G, Zhang H, Wang L, Zhou S, Dou H, Pang B, Sha W, Zhang H. Changes in feeding habits promoted the differentiation of the composition and function of gut microbiotas between domestic dogs (Canis lupus familiaris) and gray wolves (Canis lupus). AMB Express 2018; 8:123. [PMID: 30073560 PMCID: PMC6072643 DOI: 10.1186/s13568-018-0652-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/26/2018] [Indexed: 02/08/2023] Open
Abstract
Wolves (Canis lupus) and their domesticated and close relatives, dogs (Canis lupus familiaris), have great differences in their diets and living environments. To the best of our knowledge, the fundamental question of how the abundance and function of the gut microbiota of domestic dogs evolved to adapt to the changes in host feeding habits has yet to be addressed. In this study, our comparative analyses of gut metagenomes showed that the abundance of gut microbiota between the two species have some significant differences. Furthermore, a number of taxa observed in higher numbers in domestic dogs are related to carbohydrate metabolism, which may be because that there were more complicated polysaccharides in dogs diets than that in wolves diets. A significant difference in the abundance of genes encoding glycosyltransferase family 34 (GT34), carbohydrate-binding module family 25 (CBM25), and glycoside hydrolase family 13 (GH13) between the gut microbiota metagenomes of domestic dogs and gray wolves also supported this observation. Furthermore, the domestic dog gut microbiota has greater valine, leucine and isoleucine biosynthesis and nitrogen metabolism. This result showed that compared with wolves, the domestic dog diet contains a smaller amount of animal protein, which is consistent with the dietary composition of wolves and dogs. Our results indicate that the function and abundance of gut microbiota of domestic dogs has been adapted to domestication, which is of great significance for the ability of domestic dogs to adapt to changes in food composition.
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Thirumalraj B, Dhenadhayalan N, Chen SM, Liu YJ, Chen TW, Liang PH, Lin KC. Highly sensitive fluorogenic sensing of L-Cysteine in live cells using gelatin-stabilized gold nanoparticles decorated graphene nanosheets. SENSORS AND ACTUATORS. B, CHEMICAL 2018; 259:339-346. [PMID: 32288250 PMCID: PMC7127153 DOI: 10.1016/j.snb.2017.12.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 12/05/2017] [Accepted: 12/06/2017] [Indexed: 06/05/2023]
Abstract
A highly sensitive and selective fluorogenic sensing of L-Cysteine (L-Cys) was implemented based on gelatin stabilized gold nanoparticles decorated reduced graphene oxide (rGO/Au) nanohybrid. The rGO/Au nanohybrid was prepared by the one-pot hydrothermal method and well characterized by different physiochemical techniques. The nanohybrid exhibits a weak fluorescence of rGO due to the energy transfer from the rGO to Au NPs. The rGO/Au nanohybrid shows enhanced fluorescence activity due to the restoration of quenched fluorescence of rGO/Au nanohybrid in presence of L-Cys. The rGO/Au nanohybrid exhibits much lower detection limit of 0.51 nM for L-Cys with higher selectivity. The fluorescence sensing mechanism arose from the fluorescence recovery due to the stronger interaction between Au NPs and L-Cys, and consequently, the energy transfer was prevented between rGO and Au NPs. The practicability of rGO/Au sensor was implemented by invitro bioimaging measurements in Colo-205 (colorectal adenocarcinoma) and MKN-45 (gastric carcinoma) cancer live cells with excellent biocompatibility.
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Affiliation(s)
- Balamurugan Thirumalraj
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Namasivayam Dhenadhayalan
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Yan-Jin Liu
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Po-Huang Liang
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - King-Chuen Lin
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan
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18
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Anand T, Kumar ASK, Sahoo SK. A novel Schiff base derivative of pyridoxal for the optical sensing of Zn2+ and cysteine. Photochem Photobiol Sci 2018; 17:414-422. [DOI: 10.1039/c7pp00391a] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An easy to prepare novel vitamin B6 cofactor derivative 3-hydroxy-N′-((3 hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl)methylene)-2-naphthohydrazide (NPY) was applied for the optical detection of Zn2+ and cysteine in the aqueous DMSO medium.
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Affiliation(s)
- Thangaraj Anand
- Department of Applied Chemistry
- S. V. National Institute of Technology (SVNIT)
- Surat-395007
- India
| | - Ashok S. K. Kumar
- Materials Chemistry Division
- School of Advanced Sciences
- VIT University
- Vellore-632014
- India
| | - Suban K. Sahoo
- Department of Applied Chemistry
- S. V. National Institute of Technology (SVNIT)
- Surat-395007
- India
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19
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Gao Y, Jiao Y, Lu W, Liu Y, Han H, Gong X, Xian M, Shuang S, Dong C. Carbon dots with red emission as a fluorescent and colorimeteric dual-readout probe for the detection of chromium(vi) and cysteine and its logic gate operation. J Mater Chem B 2018; 6:6099-6107. [DOI: 10.1039/c8tb01580e] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A schematic illustration for assaying Cr(vi) and Cys activity by CDs with both fluorescent and colorimetric readouts.
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Affiliation(s)
- Yifang Gao
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Yuan Jiao
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Wenjing Lu
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Yang Liu
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Hui Han
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Xiaojuan Gong
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Ming Xian
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Shaomin Shuang
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Chuan Dong
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
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20
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Zhang Y, Jiang J, Li M, Gao P, Zhou Y, Zhang G, Shuang S, Dong C. Colorimetric sensor for cysteine in human urine based on novel gold nanoparticles. Talanta 2016; 161:520-527. [DOI: 10.1016/j.talanta.2016.09.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 08/23/2016] [Accepted: 09/03/2016] [Indexed: 01/24/2023]
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21
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Miranti EH, Freedman ND, Weinstein SJ, Abnet CC, Selhub J, Murphy G, Diaw L, Männistö S, Taylor PR, Albanes D, Stolzenberg-Solomon RZ. Prospective study of serum cysteine and cysteinylglycine and cancer of the head and neck, esophagus, and stomach in a cohort of male smokers. Am J Clin Nutr 2016; 104:686-93. [PMID: 27534643 PMCID: PMC4997291 DOI: 10.3945/ajcn.115.125799] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 06/30/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The nonessential amino acid cysteine is known to be involved in many antioxidant and anticarcinogenic pathways. Cysteinylglycine is a pro-oxidant metabolite of glutathione and a precursor of cysteine. OBJECTIVE To examine the relation between serum cysteine and cysteinylglycine and risk of gastric adenocarcinomas, esophageal squamous cell carcinomas, and head and neck squamous cell carcinomas, we conducted a nested case-control study within the Alpha-Tocopherol, Beta-Carotene Cancer Prevention study of male Finnish smokers aged 50-69 y at baseline. DESIGN In total, 170 gastric adenocarcinomas, 68 esophageal squamous cell carcinomas, and 270 head and neck squamous cell carcinomas (identified from the Finnish Cancer Registry) were matched one-to-one with cancer-free control subjects on age and the date of serum collection. We calculated ORs and 95% CIs with the use of a multivariate-adjusted conditional logistic regression. RESULTS Cysteine had a U-shaped association with gastric adenocarcinomas; a model that included a linear and a squared term had a significant global P-test (P = 0.036). Serum cysteinylglycine was inversely associated with adenocarcinomas of the gastric cardia (OR for above the median compared with below the median: 0.07; 95% CI: 0.01, 0.70; n = 38 cases) but not for other sites. Both cysteine and cysteinylglycine were not associated with esophageal squamous cell carcinoma or head and neck squamous cell carcinoma. CONCLUSIONS We observed associations between serum cysteine and cysteinylglycine with upper gastrointestinal cancer risk. Future studies are needed to replicate these findings. This trial was registered at clininicaltrials.gov as NCT00342992.
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Affiliation(s)
- Eugenia H Miranti
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD
| | - Neal D Freedman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD;
| | - Stephanie J Weinstein
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD
| | - Christian C Abnet
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD
| | - Jacob Selhub
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA
| | - Gwen Murphy
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD
| | - Lena Diaw
- Pulmonary and Vascular Medicine Branch, National Heart Lung and Blood Institute, NIH, Department of Health and Human Services, Bethesda, MD; and
| | - Satu Männistö
- Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
| | - Philip R Taylor
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD
| | - Rachael Z Stolzenberg-Solomon
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD
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22
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Badiga S, Siddiqui NR, Macaluso M, Johanning GL, Piyathilake CJ. Homocysteinemia is Associated with a Lower Degree of PBMC LINE-1 Methylation and a Higher Risk of CIN 2C in the U.S. Post-Folic Acid Fortification Era. Nutr Cancer 2016; 68:446-55. [DOI: 10.1080/01635581.2016.1152388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Cyclodextrin supramolecular inclusion-enhanced pyrene excimer switching for time-resolved fluorescence detection of biothiols in serum. Biosens Bioelectron 2015; 68:253-258. [DOI: 10.1016/j.bios.2015.01.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/27/2014] [Accepted: 01/02/2015] [Indexed: 11/22/2022]
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24
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Zhang RR, Zhang JF, Wang SQ, Cheng YL, Miao JY, Zhao BX. Novel pyrazoline-based fluorescent probe for detecting thiols and its application in cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:450-455. [PMID: 25238183 DOI: 10.1016/j.saa.2014.08.108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 08/19/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
A new compound, N-(4-(1,5-diphenyl-4,5-dihydro-1H-pyrazol-3-yl)phenyl)-acrylamide (probe L), was designed and synthesized as a highly sensitive and selective fluorescent probe for recognizing and detecting thiol from other amino acids. On being mixed with thiol in buffered DMSO:HEPES=1:1 solution at pH 7.4, the probe exhibited the blue emission at 474 nm. This probe is very sensitive and displayed a linear fluorescence off-on response to thiol. The fluorescence emission of the probe is pH independent in the physiological pH range. Living cell imaging of HeLa cells confirmed its cell permeability and its ability to selectively detect thiol in cells. The structure of the probe was characterized by IR, NMR and HRMS spectroscopy analysis.
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Affiliation(s)
- Rong-Rong Zhang
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Jin-Feng Zhang
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - Sheng-Qing Wang
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China; Linyi City Engineering Consulting Institute, Shandong University, Linyi 276015, PR China
| | - Yan-Long Cheng
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Jun-Ying Miao
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China.
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
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25
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Zhang L, Yuan Y, Wen X, Li Y, Cao C, Xiong Q. A coordination and ligand replacement based three-input colorimetric logic gate sensing platform for melamine, mercury ions, and cysteine. RSC Adv 2015. [DOI: 10.1039/c5ra09570k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A three-input colorimetric logic gate of melamine, cysteine, and Hg2+using Au NP has been reported, in which the colour changes of the Au NPs solution provide sensitive and selective detections of melamine, cysteine, and Hg2+.
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Affiliation(s)
- Lulu Zhang
- Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Yanwen Yuan
- Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Xinglin Wen
- Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Yue Li
- Key Laboratory of Materials Physics
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei
- P. R. China
| | - Cuong Cao
- Institute for Global Food Security
- School of Biological Sciences
- Queen’s University Belfast
- Belfast
- UK
| | - Qihua Xiong
- Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- NOVITAS
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26
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Bhasikuttan AC, Mohanty J. Targeting G-quadruplex structures with extrinsic fluorogenic dyes: promising fluorescence sensors. Chem Commun (Camb) 2015; 51:7581-97. [DOI: 10.1039/c4cc10030a] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This article provides a brief account of the recent reports on the fluorescence properties of some of the fluorogenic dyes towards G-quadruplex DNAs, which have been turned into promising bio-analytical methods.
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Affiliation(s)
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
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27
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Jana J, Ganguly M, Pal T. Intriguing cysteine induced improvement of the emissive property of carbon dots with sensing applications. Phys Chem Chem Phys 2014; 17:2394-403. [PMID: 25489717 DOI: 10.1039/c4cp04982a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A simple fluorometric technique has been adopted for cysteine (Cys) sensing in alkaline medium down to the nM level. The huge fluorescent signal of the solution is a consequence of fluorescent carbon dots (CDs) produced in situ from modified hydrothermal (MHT) reaction between Cys and dopamine (DA). It has been observed that the inherent fluorescence of DA is drastically quenched in alkaline solution. Cys can selectively rescue the fluorescence of DA. Thus, Cys determination in a straightforward way, but only to a micro molar (10(-7) M i.e. 0.1 μM) level is possible through such fluorescence enhancement. Sensitive Cys determination remains associated with the in situ generated CDs, but the external addition of pre-formed CDs to Cys solution fails miserably towards Cys detection. However, CDs prepared from the Cys-DA system in alkaline solution admirably increase the limit of detection (LOD) of Cys at least two orders higher (10(-9) M) than that observed without hydrothermal technique i.e., without CDs. This method finds applications for Cys determination in biological samples and pharmaceutical preparations.
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Affiliation(s)
- Jayasmita Jana
- Department of Chemistry, Indian Institute of Technology, Kharagpur-721302, India.
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28
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Li Y, Li Z, Gao Y, Gong A, Zhang Y, Hosmane NS, Shen Z, Wu A. "Red-to-blue" colorimetric detection of cysteine via anti-etching of silver nanoprisms. NANOSCALE 2014; 6:10631-10637. [PMID: 25083798 DOI: 10.1039/c4nr03309d] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The reported strategies for cysteine (Cys) colorimetric detection based on noble metal nanomaterials include triggering aggregation, etching or fluorescence quenching of nanomaterials by Cys. In this study, we propose a new strategy for Cys colorimetric detection, i.e. anti-etching of silver nanoprisms (AgNPRs). In the absence of Cys, iodide ions (I(-)) could etch the corners and edges of AgNPRs and induce the morphology transition from nanoprism to nanodisk, which results in color change of the AgNPR dispersion from blue to red. In its presence, however, Cys can prevent the AgNPRs from I(-) attack. In that case, the color of the AgNPR dispersion containing I(-) and Cys remains blue. The mechanism is confirmed by using UV-vis spectra, TEM, DLS, Raman spectra and XPS spectra. According to the sensing effect of the Cys detection system, the concentration of I(-) incubated with AgNPRs, incubation time of AgNPRs and I(-), and pH of AgNPR dispersions are optimized to 5.0 μM, 10 min, and pH 6.2, respectively. Under the optimized conditions, the proposed Cys detection system has excellent selectivity and high sensitivity. The limit of detection (LOD) of our Cys detection system is 25 nM by the naked eye, which is much better than the reported lowest LOD by eye-vision (100 nM), and 10 nM by UV-vis spectroscopy. The results of Cys detection in rabbit urine or plasma samples reinforce that our Cys detection system is applicable for rapid colorimetric detection of Cys in real body fluid samples.
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Affiliation(s)
- Yonglong Li
- Key Laboratory of Magnetic Materials and Devices & Division of Functional Materials and Nano Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China.
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29
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Zhang W, Li P, Geng Q, Duan Y, Guo M, Cao Y. Simultaneous determination of glutathione, cysteine, homocysteine, and cysteinylglycine in biological fluids by ion-pairing high-performance liquid chromatography coupled with precolumn derivatization. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:5845-52. [PMID: 24914733 DOI: 10.1021/jf5014007] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Biologically active low-molecular-mass thiols, mainly including glutathione (GSH), cysteine (Cys), homocysteine (Hcy), and cysteinylglycine (Cys-Gly), are important physiological components in biological fluids, and their analytical methods have gained continuous attention over recent years. We developed and validated a novel HPLC method for the quantification of GSH, Cys, Hcy, and Cys-Gly in human plasma, urine, and saliva using 4-chloro-3,5-dinitrobenzotrifluoride as the derivatization reagent. Analyses were linear from 0.15 to 500 μM with the coefficient regression range of 0.9987-0.9994. Detection limits ranged from 0.04 to 0.08 μM (S/N=3). The developed method was applied to quantification of four thiols in human biological fluids collected from five donors with the concentration range of 2.50-124.25 μM, 0-72.81 μM, and 0-4.25 μM for plasma, urine, and saliva, respectively. The present method seemed to be an attractive choice for the determination of thiols in plasma, urine, and saliva.
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Affiliation(s)
- Wenbing Zhang
- College of Agriculture and Biotechnology, China Agricultural University , Beijing, China , 100193
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30
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Hou XY, Chen S, Tang J, Long YF. Visual determination of trace cysteine based on promoted corrosion of triangular silver nanoplates by sodium thiosulfate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 125:285-289. [PMID: 24556137 DOI: 10.1016/j.saa.2014.01.098] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 01/21/2014] [Accepted: 01/26/2014] [Indexed: 06/03/2023]
Abstract
In this study, triangular silver nanoplates (TAg-NPs) were used to detect trace Cysteine concentration in the presence of sodium thiosulfate (Na2S2O3). Study showed that the TAg-NPs could be gently etched by Cysteine with the concentration of 1.0×10(-7) mol L(-1) through forming Ag-S covalent bond at the three corners. However, in the presence of Na2S2O3 (only 3.0×10(-6) mol L(-1)), the corrosion of Cysteine on TAg-NPs can be promoted significantly. It was also found that the color, morphology, and the maximum absorption wavelength of TAg-NPs change clearly with the concentrations of Cysteine as low as 2.5×10(-8) mol L(-1). Furthermore, the wavelength shift values (Δλ) of TAg-NPs solution were proportional to the concentrations of Cysteine in the range of 1.0×10(-9)-1.0×10(-7) mol L(-1), and the linear regression equation is Δλ=-0.89+319.94 c (c, μM, n=5) with the correlation coefficient of 0.990. At the same time, the color change of the TAg-NPs solution could be observed clearly by the naked eyes with increasing Cysteine concentrations in the range of 2.5×10(-8)-1.0×10(-7) mol L(-1). Thus, a novel method for the detection of Cysteine by either UV-vis spectrophotometry detection or naked eyes observation is established. It allows determination of Cysteine content in compound amino acid injection sample of 18AA-V.
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Affiliation(s)
- Xin Yan Hou
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education of China, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Shu Chen
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education of China, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Jian Tang
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education of China, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Yun Fei Long
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education of China, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
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31
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Aswini K, Mohan AV, Biju V. Molecularly imprinted polymer based electrochemical detection of L-cysteine at carbon paste electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 37:321-6. [DOI: 10.1016/j.msec.2014.01.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 12/21/2013] [Accepted: 01/08/2014] [Indexed: 11/28/2022]
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Zheng Y, Yang C, Yang F, Yang X. Real-time study of interactions between cytosine-cytosine pairs in DNA oligonucleotides and silver ions using dual polarization interferometry. Anal Chem 2014; 86:3849-55. [PMID: 24611666 DOI: 10.1021/ac403992r] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The real-time conformational changes of cytosine (C)-rich ssDNA oligonucleotides upon binding with silver ions (Ag(+)) were studied using dual polarization interferometry (DPI). Upon the addition of Ag(+), Ag(+) selectively bound to cytosine-cytosine mismatches and formed C-Ag(+)-C complexes, inducing change of the structure of the C-rich ssDNA from random coil conformation to duplex conformation, whereas the control ssDNA without cytosine-cytosine mismatches had no such signal, which was consistent with circular dichroism (CD) characterization. The conformational change of DNA was reflected on the changes of the mass, thickness, and density values resolved by DPI. The calibration curves showed that as the concentration of Ag(+) increased from 10 nM to 8 μM, the thickness and mass values increased linearly while the density values decreased linearly. Other metal ions such as K(+), Ca(2+), Na(+), Mg(2+), Zn(2+), Mn(2+), Ni(2+), and Pb(2+) did not interfere with the interaction between Ag(+) and C-rich ssDNA, indicating that this method had a good selectivity. The practical application of this biosensor was also investigated in real samples such as drinking water. Besides, cysteine could specifically capture Ag(+) from C-Ag(+)-C complexes and transformed the structure of the C-rich DNA back from rigid double-stranded conformation to random coil conformation, which allowed cysteine to be detected selectively as well. It is expected that this biosensing strategy may be utilized to study the interaction of DNA with other molecules.
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Affiliation(s)
- Yu Zheng
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
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Chaichi MJ, Ehsani M, Khajvand T, Golchoubian H, Rezaee E. Determination of cysteine and glutathione based on the inhibition of the dinuclear Cu(II)-catalyzed luminol-H2O2 chemiluminescence reaction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 122:405-410. [PMID: 24326259 DOI: 10.1016/j.saa.2013.10.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 10/22/2013] [Accepted: 10/31/2013] [Indexed: 06/03/2023]
Abstract
The catalyzed luminol chemiluminescent reaction has received a great amount of attention because of its high sensitivity and low background signal which make the reaction an attractive analytical chemistry tool. The present study, introduces the beneficial catalytic effects of dinuclear Cu(II) complex [Cu2L2(TAE)]X2, where TAE=tetraacetylethane; L=N,N(')-dibenzylethylenediamine and X=ClO4 on the luminol chemiluminescent reaction as a novel probe for the determination of glutathione (GSH) and L-cysteine (CySH) in human serum and urine. The [Cu2L2(TAE)]X2 has exhibited highly efficient catalytic activity of luminol CL as an artificial peroxidase model at pH as low as 7.5 in water in the presence of H2O2⋅GSH and CySH can induce a sharp decrease in CL intensity from the [Cu2L2(TAE)]X2-catalyzed luminol system. Under the selected experimental conditions, a linear relationship was obtained between the CL intensity and the concentrations of GSH and CySH in the range of 1.0×10(-7)-1.0×10(-4) M, with detection limits (S/N=3) of 2.7×10(-8) and 6.8×10(-8) M and RSD<4.2% (n=7) for GSH and CySH, respectively.
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Affiliation(s)
- Mohammad Javad Chaichi
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran.
| | - Mahjoobeh Ehsani
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran
| | - Tahereh Khajvand
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran
| | - Hamid Golchoubian
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran
| | - Ehsan Rezaee
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran
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Modified electrode using multi-walled carbon nanotubes and a metallopolymer for amperometric detection of l-cysteine. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.09.050] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Tomita LY, D'Almeida V, Villa LL, Franco EL, Cardoso MA. Polymorphisms in genes involved in folate metabolism modify the association of dietary and circulating folate and vitamin B-6 with cervical neoplasia. J Nutr 2013; 143:2007-14. [PMID: 24089416 DOI: 10.3945/jn.113.182212] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
High folate intake has been suggested as an important factor in cancer prevention; however, previous studies on the relation among folate intake, serum folate, and plasma homocysteine (hcy) are controversial. We conducted a hospital-based, case-control study in Brazil investigating associations between dietary and circulating vitamins B-6 and B-12 and folate, hcy, genotypes of folate-metabolizing enzyme methylenetetrahydrofolate reductase (MTHFR C677T, A1298C), 5-methyltetrahydrofolate-homocysteine methyltransferase (MTR A2756G), methionine synthase reductase (MTRR A66G), and reduced folate carrier (RFC1 G80A) and risk of cervical intraepithelial neoplasia (CIN) grades 1 (CIN1), 2 (CIN2), and 3 (CIN3). The study was composed by 453 controls, 140 CIN1, 126 CIN2, and 231 CIN3. We investigated the joint effects of genetic variants of folate-related genes using genetic risk scores (GRSs) by summing the number of risk alleles for CIN1 and CIN2+ (CIN2 and CIN3 cases). The OR (95% CI) for CIN1 and CIN2+ per each risk allele were 1.29 (1.01, 1.65) and 1.22 (1.01, 1.46), respectively. An association between folate intake and CIN2+ was observed only after stratification according to GRS: crude OR (95% CI) for lower folate intake and GRS ≥ 4 was 1.67 (0.92, 3.04) (P-trend < 0.001) compared with higher folate intake (above the median) and GRS ≤ 3. The CIN2+ risk of lower serum vitamin B-6 and GRS ≥ 4 was 2.14 (0.92, 5.02) (P-trend = 0.05) and lower serum folate (below the median) and GRS ≥ 4 was 0.49 (0.20, 1.17) (P-trend = 0.05) after adjustment for confounding variables and human papillomavirus infection. Our data suggest that polymorphisms in genes related to folate metabolism modify the association of dietary and circulating folate and vitamin B-6 with cervical neoplasia.
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Peng R, Lin L, Wu X, Liu X, Feng X. Fluorescent Sensor Based on BINOL for Recognition of Cysteine, Homocysteine, and Glutathione. J Org Chem 2013; 78:11602-5. [DOI: 10.1021/jo401932n] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ruixue Peng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiaoxia Wu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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Min KJ, Lee JK, Lee S, Kim MK. Alcohol consumption and viral load are synergistically associated with CIN1. PLoS One 2013; 8:e72142. [PMID: 23977233 PMCID: PMC3747046 DOI: 10.1371/journal.pone.0072142] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Accepted: 07/07/2013] [Indexed: 11/29/2022] Open
Abstract
Purpose We investigated the association between alcohol consumption and risk of cervical intraepithelial neoplasia (CIN) and cervical cancer, and determined whether these associations were modified by human papillomavirus (HPV) viral load in high-risk HPV-positive women participating in the Korean HPV cohort study (KHPV). Methods Among the women recruited in the KHPV (n = 1,243) from March 2006 to December 2009, we analyzed normal cytology (n = 581) as control group, CIN1 (n = 299), CIN2/3 (n = 161), or cervical cancer (n = 202). Multinomial logistic analysis was performed to estimate multivariate-adjusted odds ratios (OR). Results Alcohol drinkers had an increased risk of CIN1 (OR = 2.18, 95% CI 1.22–3.89) compared with non-drinkers after adjusting for potential confounders. Subjects with more frequent alcohol consumption had a higher risk of CIN1 (p for linear trend <0.0001). Higher ethanol consumption was associated with an increased risk of CIN1 (p for linear trend = 0.0001). We also observed a synergistic effect between HPV viral load and alcohol consumption: drinkers with a high HPV viral load (≥100 RLU/PC) were associated with a significantly increased risk of CIN1 (OR = 19.1; 95% CI, 6.60–55.3, interaction p<0.001). There were no associations between alcohol drinking and CIN2/3 or cervical cancer. Conclusions HPV viral load and alcohol was associated with the risk of CIN1 among high-risk HPV-positive women. This is the first demonstration that alcohol is an independent and combined risk factor of CIN1.
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Affiliation(s)
- Kyung-Jin Min
- Department of Obstetrics and Gynecology, Inha University Hospital, Incheon, Korea
| | - Jae-Kwan Lee
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - Sanghoon Lee
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - Mi Kyung Kim
- Carcinogenesis Branch, Division of Cancer Epidemiology and Management, National Cancer Center, Goyang, Korea
- * E-mail:
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A novel label-free optical cysteine sensor based on the competitive oxidation reaction catalyzed by G-quadruplex halves. Biosens Bioelectron 2013; 43:268-73. [DOI: 10.1016/j.bios.2012.12.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 12/02/2012] [Accepted: 12/17/2012] [Indexed: 01/14/2023]
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Yu L, Chang K, Han J, Deng S, Chen M. Association between Methylenetetrahydrofolate reductase C677T polymorphism and susceptibility to cervical cancer: a meta-analysis. PLoS One 2013; 8:e55835. [PMID: 23431363 PMCID: PMC3576378 DOI: 10.1371/journal.pone.0055835] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 01/02/2013] [Indexed: 01/11/2023] Open
Abstract
Background To assess the association between MTHFR polymorphism and cervical cancer risk, a meta-analysis was performed. Methods Based on comprehensive searches of the PubMed, Embase, and Web of Science databases, we identified outcome data from all articles estimating the association between MTHFR polymorphism and cervical cancer risk. The pooled odds ratio (OR) with 95% confidence intervals (CIs) were calculated. Results A total of 12 studies with 2,924 cases (331 cervical intraepithelial neoplasia (CIN) I, 742 CIN II/III, 1851 invasive cervical cancer) and 2,581 controls were identified. There was no significant association between MTHFR C677T polymorphism and CIN I risk (T vs. C, OR = 1.10, 95% CI = 0.92–1.31; TT vs. CC, OR = 1.14, 95% CI = 0.78–1.68; TT+CT vs. CC, OR = 1.22, 95% CI = 0.94–1.58; TT vs. CT+CC, OR = 0.99, 95% CI = 0.70–1.40). For the CIN II/III, lack of an association was also found (T vs. C, OR = 1.08, 95% CI = 0.95–1.23; TT vs. CC, OR = 1.15, 95% CI = 0.87–1.52; TT+CT vs. CC, OR = 1.13, 95% CI = 0.94–1.35; TT vs. CT+CC, OR = 1.07, 95% CI = 0.83–1.38). The T allele had significant association to susceptibility of invasive cervical cancer in recessive model (TT vs. CT+CC, OR = 1.23, 95% CI = 1.02–1.49). On subgroup analysis by ethnicity, similarly significant differences in T vs. C, TT vs. CC, and recessive model were found in Asians. Conclusion The present meta-analysis suggested that MTHFR C677T polymorphism were to substantially contribute to invasive cervical cancer in recessive model.
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Affiliation(s)
- Lili Yu
- Department of Obstetrics and Gynecology, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Kai Chang
- Department of Laboratory Medicine, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Jian Han
- Department of Obstetrics and Gynecology, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Shaoli Deng
- Department of Laboratory Medicine, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, China
- * E-mail: (MC); (SD)
| | - Ming Chen
- Department of Laboratory Medicine, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, China
- * E-mail: (MC); (SD)
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Liu X, Lv H, Sun Q, Zhong Y, Zhao J, Fu J, Lin M, Wang J. Differential Pulse Voltammetric Determination of L-Cysteine After Cyclic Voltammetry in Presence of Catechol with Glassy Carbon Electrode. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.686133] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Luo YL, Ye P, Zhang QH, Hu TT, Luo MH, Li MQ, Chen Q. Methylenetetrahydrofolate reductase C677T polymorphism and susceptibility to cervical cancer and cervical intraepithelial neoplasia: a meta-analysis. PLoS One 2012; 7:e46272. [PMID: 23029458 PMCID: PMC3460879 DOI: 10.1371/journal.pone.0046272] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 08/28/2012] [Indexed: 12/14/2022] Open
Abstract
Background A number of studies have explored the association between methyl enetetrahydrofolate reductase (MTHFR) C677T polymorphism and susceptibility to cervical cancer and cervical intraepithelial neoplasia (CIN). However, results remained controversial. To address this gap, we decided to conduct a meta-analysis of all available published studies. Methods Electronic literature searches of the PubMed, EmBase and Medline databases were performed up to April 30, 2012. Fixed-effects or random-effects model was used to calculate the pooled ORs for different genetic models. Results A total of 12 case-control studies were ultimately identified. No statistical correlation was found between C677T variants and cervical cancer for the overall population. However, subgroup analyses on the White women pointed to a significant protective effect for individuals heterozygous or homozygous for the T-allele (for CT vs. CC: OR = 0.72, 95% CI 0.59–0.88; for TT vs. CC: OR = 0.69, 95% CI = 0.49–0.97; for CT+TT vs. CC: OR = 0.71, 95% CI 0.59–0.86). C677T variants were associated with neither combined nor stratified CIN among the overall population. Conclusions This meta-analysis suggests that White women with mutant C677T genotypes might have a lower risk of cervical cancer, yet lacking enough statistical robustness. Further investigations are needed to get more insight into the role of this polymorphism in cervical carcinogenesis.
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Affiliation(s)
| | | | | | | | | | | | - Qing Chen
- Department of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
- * E-mail:
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Jia X, Li J, Wang E. Lighting-up of the dye malachite green with mercury(II)-DNA and its application for fluorescence turn-off detection of cysteine and glutathione. Chemistry 2012; 18:13494-500. [PMID: 22944915 DOI: 10.1002/chem.201103768] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 06/27/2012] [Indexed: 01/08/2023]
Abstract
This work describes a novel strategy for the highly sensitive and selective detection of cysteine (Cys) and glutathione (GSH) based on the Hg(2+)-AGRO100-malachite green (MG) complex system. The dye MG, which has a very low quantum yield in aqueous solution by itself, can bind with the thymine-rich DNA AGRO100 in the presence of Hg(2+) ions to generate a striking fluorescence intensity enhancement of 1000-fold. As sulfur-containing amino acids, Cys and GSH effectively sequester Hg(2+) ions from the Hg(2+)-AGRO100-MG complex structure to switch the 'lit-up' chemosensor to the 'off' state (about a 50-fold fluorescence intensity decrease), thus providing a facile, but effective, method to probe for Cys/GSH. The fluorescence titration, UV absorption, CD, and Raman spectra provide some insight into the structural and chemical basis for the enhancement effect. The formation of the Hg(2+)-AGRO100-MG complex significantly affects the electronic structure and conformation of the MG molecule by leading to an extended π system, which is the likely origin of the observed striking fluorescence intensity enhancement. Notably, the proposed sensing platform exhibits exquisite selectivity and sensitivity toward Cys/GSH with limits of detection of 5 nM for Cys and 10 nM for GSH, respectively. Furthermore, the straightforward assay design avoids labeling of the probe, uses only commercially available materials, and still displays comparable sensitivity and excellent selectivity.
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Affiliation(s)
- Xiaofang Jia
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P.R. China
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de Carvalho Castro e Silva C, Breitkreitz MC, Santhiago M, Corrêa CC, Kubota LT. Construction of a new functional platform by grafting poly(4-vinylpyridine) in multi-walled carbon nanotubes for complexing copper ions aiming the amperometric detection of l-cysteine. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.114] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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The electrochemical determination of l-cysteine at a Ce-doped Mg–Al layered double hydroxide modified glassy carbon electrode. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.106] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Xie WY, Huang WT, Li NB, Luo HQ. Design of a dual-output fluorescent DNA logic gate and detection of silver ions and cysteine based on graphene oxide. Chem Commun (Camb) 2012; 48:82-4. [DOI: 10.1039/c1cc15449d] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Liu G, Feng DQ, Chen T, Li D, Zheng W. DNA-templated formation of silver nanoclusters as a novel light-scattering sensor for label-free copper ions detection. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35236b] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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47
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Human Papillomavirus and Warts. Integr Med (Encinitas) 2012. [DOI: 10.1016/b978-1-4377-1793-8.00058-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang J, Xu X, Yuan Y, Yang C, Yang X. A Cu@Au nanoparticle-based colorimetric competition assay for the detection of sulfide anion and cysteine. ACS APPLIED MATERIALS & INTERFACES 2011; 3:2928-2931. [PMID: 21786826 DOI: 10.1021/am2007678] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
As an extension of our previous work, which described the unique ability of the core/shell Cu@Au nanoparticle (NP) to selectively recognize iodide, (1) herein, we wish to report the development of an alternatively sensitive and selective colorimetric detection for sulfide anion and cysteine based upon the Cu@Au NP by a competition avenue. In the absence of sulfide anion or cysteine, iodide can induce an appreciable color change of the Cu@Au NP solution from purple to red by transforming the clusters of NP to single, nearly spherical, and larger ones. However, the transformation is severely interfered by the presence of sulfide or cysteine because of a higher binding strength of the S-Au bond than the I-Au one. As a result, the clear purple-to-red color change induced by iodide is affected as a correlation with the concentration of sulfide or cysteine. By taking advantage of this fact, we can detect a concentration of 3 μM for sulfide and 0.4 μM for cysteine with the naked eye or 0.3 μM (10 ppb) for sulfide and 50 nM (6 ppb) for cysteine aided by a UV/vis spectrometer. Given the detrimental effect of hydrogen sulfide and the biological importance of cysteine, the assay may become useful in the environment monitoring, water quality inspection and biomedical diagnosis as well.
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Affiliation(s)
- Jia Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
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Sattarahmady N, Heli H. An electrocatalytic transducer for l-cysteine detection based on cobalt hexacyanoferrate nanoparticles with a core–shell structure. Anal Biochem 2011; 409:74-80. [DOI: 10.1016/j.ab.2010.09.032] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2010] [Revised: 09/13/2010] [Accepted: 09/18/2010] [Indexed: 11/30/2022]
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Shen JS, Li DH, Zhang MB, Zhou J, Zhang H, Jiang YB. Metal-metal-interaction-facilitated coordination polymer as a sensing ensemble: a case study for cysteine sensing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:481-486. [PMID: 21133345 DOI: 10.1021/la103153e] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A detailed investigation of the absorption and CD signals of Ag(I)-cysteine (Cys) aqueous solutions at buffered or varying pH has allowed us to suggest that coordination polymers are formed upon mixing Ag(I) and Cys bearing a Ag(I)-Cys repeat unit. The formation of the coordination polymers are shown to be facilitated by both the Ag(I)···Ag(I) interaction and the interaction between the side chains in the polymeric backbone. The former allows for an immediate spectral sensing of Cys with enantiomeric discrimination capacity with both high sensitivity and selectivity, and the contribution of the side-chain/side-chain interaction serves to guide extended sensing applications by means of modulating this interaction. With our preliminary data on the corresponding Cu(I)-Cys and Au(I)-Cys systems that exhibited similar spectral signals, we conclude that the M(I)-SR coordination polymers (M = Cu, Ag, or Au) could in general function as spectral sensing ensembles for extended applications. This sensing ensemble involves the formation of coordination polymers with practically no spectral background, thus affording high sensing sensitivity and selectivity.
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Affiliation(s)
- Jiang-Shan Shen
- Department of Chemistry, College of Chemistry and Chemical Engineering, and the MOE Key Laboratory of Analytical Sciences, Xiamen University, Xiamen 361005, China
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