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Wang Z, Lei P, Li Z, Han X, Yang F, Su T, Meng C, Hou Z, Liu H. Proteomic and Phosphoproteomic Analyses Reveal the Oncogenic Role of PTK7-NDRG1 Axis in Non-small-cell Lung Cancer Cell Resistance to AZD9291. ACS Chem Biol 2022; 17:2849-2862. [PMID: 36205702 DOI: 10.1021/acschembio.2c00479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) are the most important chemotherapeutics for non-small-cell lung cancer (NSCLC) therapy. The resistance to EGFR-TKIs is one of the biggest obstacles to NSCLC outcome. In this study, taking advantage of phospho- and proximal proteomic techniques, we analyzed the network rearrangement in cell lines responding to AZD9291 treatment and found that cell-cell adhesion was dramatically enhanced in AZD9291-resistant cells. Further analysis revealed that protein tyrosine kinase 7 (PTK7) expression was significantly elevated. Knockdown or overexpression assays showed that PTK7 played a critical role in improving cell adhesion, which enhanced drug resistance. Because PTK7 is a membrane-localized pseudokinase, the proximal labeling probe BirA* was fused to reveal PTK7-interacting proteins. We found that PTK7 interacted with and stabilized NDRG1, which is located predominantly adjacent to adherens junctions. Downregulation of PTK7 or NDRG1 eliminated the resistance of H1975-resistant (H1975-R) and PC9-resistant (PC9-R) cells to AZD9291, suggesting that the PTK7-NDRG1 axis might be a potential target to eliminate the EGFR-TKI resistance during NSCLC therapy.
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Affiliation(s)
- Zhen Wang
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Panpan Lei
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Ziyang Li
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Xiao Han
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Fei Yang
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Tian Su
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Caiting Meng
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Zhanwu Hou
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Huadong Liu
- Center for Mitochondrial Biology and Medicine & Douglas C. Wallace Institute for Mitochondrial and Epigenetic Information Sciences, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.,University of Health and Rehabilitation Sciences, Qingdao 266071, China
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Kośka I, Purgat K, Głowacki R, Kubalczyk P. Simultaneous Determination of Ciprofloxacin and Ofloxacin in Animal Tissues with the Use of Capillary Electrophoresis with Transient Pseudo-Isotachophoresis. Molecules 2021; 26:molecules26226931. [PMID: 34834024 PMCID: PMC8618939 DOI: 10.3390/molecules26226931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 01/14/2023] Open
Abstract
We have developed a precise and accurate method for the determination of ciprofloxacin and ofloxacin in meat tissues. Our method utilizes capillary electrophoresis with a transient pseudo-isotachophoresis mechanism and liquid–liquid extraction during sample preparation. For our experiment, a meat tissue sample was homogenized in pH 7.00 phosphate buffer at a ratio of 1:10 (tissue mass: buffer volume; g/mL). The extraction of each sample was carried out twice for 15 min with 600 µL of a mixture of dichloromethane and acetonitrile at a 2:1 volume ratio. We then conducted the electrophoretic separation at a voltage of 16 kV and a temperature of 25 °C using a background electrolyte of 0.1 mol/L phosphate–borate (pH 8.40). We used the UV detection at 288 nm. The experimentally determined LOQs for ciprofloxacin and ofloxacin were 0.27 ppm (0.8 nmol/g tissue) and 0.11 ppm (0.3 nmol/g tissue), respectively. The calibration curves exhibited linearity over the tested concentration range of 2 to 10 nmol/g tissue for both analytes. The relative standard deviation of the determination did not exceed 15%, and the recovery was in the range of 85–115%. We used the method to analyze various meat tissues for their ciprofloxacin and ofloxacin contents.
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Affiliation(s)
- Izabella Kośka
- Department of Environmental Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236 Lodz, Poland; (K.P.); (R.G.)
- Doctoral School of Exact and Natural Sciences, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
- Correspondence: (I.K.); (P.K.); Tel.: +48-4263-558-44 (P.K.)
| | - Krystian Purgat
- Department of Environmental Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236 Lodz, Poland; (K.P.); (R.G.)
| | - Rafał Głowacki
- Department of Environmental Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236 Lodz, Poland; (K.P.); (R.G.)
| | - Paweł Kubalczyk
- Department of Environmental Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236 Lodz, Poland; (K.P.); (R.G.)
- Correspondence: (I.K.); (P.K.); Tel.: +48-4263-558-44 (P.K.)
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Label-free in-situ monitoring of protein tyrosine nitration in blood by surface-enhanced Raman spectroscopy. Biosens Bioelectron 2015; 69:1-7. [DOI: 10.1016/j.bios.2015.01.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 12/26/2014] [Accepted: 01/02/2015] [Indexed: 12/26/2022]
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Liu S, Zhang D, Wang H. Transient isotachophoresis focusing of DNA and DNA-protein complexes is essentially enhanced by spontaneously dissolved aerial carbon dioxide in electrolytes. Anal Chem 2015; 87:554-60. [PMID: 25437902 DOI: 10.1021/ac504173b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The formation of a highly adapted high-E zone is critical to isotachophoresis separation and focusing. Recently, we discovered that the high-E zone is present only in a small portion of electrophoresis channel in the presence of EOF (Liu, S. Q. et al. J. Am. Chem. Soc. 2013, 135, 4644-4647). Accordingly, a much narrower high-E zone is presumably present in t-ITP. If so, it is hard to achieve efficient t-ITP focusing. Indeed, by online coupling t-ITP with CE-LIF immunoassay, the immunocomplexes of carcinogenic BPDE-dG adducts are not efficiently focused using a freshly prepared background electrolyte. Intriguingly, we observed that 20-day stored background electrolyte displays a 10-fold better focusing efficiency. We hypothesize that the unexpected phenomenon is associated with the dissolution of aerial carbon dioxide, which is mainly converted to ionic HCO3(-) in the weak alkaline background electrolyte. Consequently, HCO3(-) of high electrophoretic mobility will be continuously injected into the capillary along with the background electrolyte and act as an alternative leading ion to improve the focusing. By addition of dry ice (without causing significant pH decrease, ΔpH < 0.4) to freshly prepared background electrolytes, we immediately observed the enhanced focusing of immunocomplexes of the DNA adducts. NH4HCO3 and Na2CO3, included in the background electrolyte, also improve the focusing efficiency and reproducibility. All these consistently support our hypothesis. To understand the underlying mechanism, an advanced CE-SMFI was exploited to monitor in real time the motion of single DNA molecules and the E change throughout t-ITP. We uncovered that t-ITP can induce a local high-E zone, but the presence of HCO3(-) in the background electrolyte could greatly increase the E value in the high-E zone, which allows more DNA molecules to rapidly move backward and to be efficiently stacked at LE/TE boundary. This study provides new insight into nonuniform electric field-induced electrophoresis focusing.
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Affiliation(s)
- Shengquan Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , ShuangQing Road 18, Beijing 100085, China
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Dziomba S, Kowalski P, Słomińska A, Bączek T. Field-amplified sample injection coupled with pseudo-isotachophoresis technique for sensitive determination of selected psychiatric drugs in human urine samples after dispersive liquid–liquid microextraction. Anal Chim Acta 2014; 811:88-93. [DOI: 10.1016/j.aca.2013.12.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 12/12/2013] [Accepted: 12/18/2013] [Indexed: 11/29/2022]
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6
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Squeezed flow preconcentration for probe tip biosensors. Anal Biochem 2014; 444:57-9. [DOI: 10.1016/j.ab.2013.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/27/2013] [Accepted: 10/02/2013] [Indexed: 11/23/2022]
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Zhang W, Guo CG, Fan LY, Cao CX. Theoretical and experimental studies on isotachophoresis in multi-moving chelation boundary system formed with metal ions and EDTA. Analyst 2013; 138:5039-51. [PMID: 23806973 DOI: 10.1039/c3an00643c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, a general mode and theory of moving chelation boundary based isotachophoresis (MCB-based ITP), together with the concept of decisive metal ion (DMI) having the maximum complexation constant (lg Kmax) with the chelator, were developed from a multi-MCB (mMCB) system. The theoretical deductions were: (i) the reaction boundary velocities in the mMCB system at steady state were equal to each other, resulting in a novel MCB-based ITP separation of metal ions; (ii) the boundary directions and velocities in the system were controlled by the fluxes of chelator and DMI, rather than other metal ions; and (iii) a controllable stacking of metal ions could be simultaneously achieved in the developed system. To demonstrate the deductions, a series of experiments were conducted by using model chelator of EDTA and metal ions of Cu(II) and Co(II) due to characteristic colors of blue [Cu-EDTA](2-) and pink [Co-EDTA](2-) complexes. The experiments demonstrated the correctness of theoretical deductions, indicating the validity of the developed model and theory of ITP. These findings provide guidance for the development of MRB-based ITP separation and stacking of metal ions in biological sample matrix and heavy metal ions in environmental samples.
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Affiliation(s)
- Wei Zhang
- Laboratory of Bioseparation and Analytical Biochemistry, State Key Laboratory of Microbial Metabolism, School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
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Kubalczyk P, Bald E. Methods of Analyte Concentration in a Capillary. SPRINGER SERIES IN CHEMICAL PHYSICS 2013. [DOI: 10.1007/978-3-642-35043-6_12] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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The absolute quantification of endogenous levels of brain neuropeptides in vivo using LC-MS/MS. Bioanalysis 2011; 3:1271-85. [PMID: 21649502 DOI: 10.4155/bio.11.91] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Neuropeptides seem to play an important role when the CNS is challenged. In order to obtain better insights into the central peptidergic effects, it is essential to monitor their concentration in the brain. Quantification of neuropeptides in dialysates is challenging due to their low extracellular concentrations (low pM range), their low microdialysis efficiencies, the need for acceptable temporal resolution, the small sample volumes, the complexity of the matrix and the tendency of peptides to stick to glass and polymeric materials. The quantification of neuropeptides in dialysates therefore necessitates the use of very sensitive nano-LC-MS/MS methods. A number of LC-MS/MS and microdialysis parameters need to be optimized to achieve maximal sensitivity. The optimized and validated methods can be used to investigate the in vivo neuropeptide release during pathological conditions, in this way initiating new and immense challenges for the development of new drugs.
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Qiao X, Sun L, Wang L, Liang Y, Zhang L, Shan Y, Peng X, Liang Z, Zhang Y. High sensitive protein detection by hollow fiber membrane interface based protein enrichment and in situ fluorescence derivatization. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:1439-43. [DOI: 10.1016/j.jchromb.2010.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Revised: 10/12/2010] [Accepted: 11/01/2010] [Indexed: 11/29/2022]
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11
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Szökő É, Tábi T. Analysis of biological samples by capillary electrophoresis with laser induced fluorescence detection. J Pharm Biomed Anal 2010; 53:1180-92. [DOI: 10.1016/j.jpba.2010.07.045] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 07/23/2010] [Accepted: 07/27/2010] [Indexed: 12/26/2022]
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12
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Malá Z, Gebauer P, Boček P. Contemporary sample stacking in analytical electrophoresis. Electrophoresis 2010; 32:116-26. [DOI: 10.1002/elps.201000327] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Revised: 08/09/2010] [Accepted: 08/09/2010] [Indexed: 12/31/2022]
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13
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Park YK, Choi K, Ahmed AYBH, ALOthman ZA, Chung DS. Selective preconcentration of amino acids and peptides using single drop microextraction in-line coupled with capillary electrophoresis. J Chromatogr A 2010; 1217:3357-61. [DOI: 10.1016/j.chroma.2010.03.029] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Revised: 03/15/2010] [Accepted: 03/17/2010] [Indexed: 11/24/2022]
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15
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Perry M, Li Q, Kennedy RT. Review of recent advances in analytical techniques for the determination of neurotransmitters. Anal Chim Acta 2009; 653:1-22. [PMID: 19800472 PMCID: PMC2759352 DOI: 10.1016/j.aca.2009.08.038] [Citation(s) in RCA: 248] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Revised: 08/25/2009] [Accepted: 08/27/2009] [Indexed: 12/18/2022]
Abstract
Methods and advances for monitoring neurotransmitters in vivo or for tissue analysis of neurotransmitters over the last five years are reviewed. The review is organized primarily by neurotransmitter type. Transmitter and related compounds may be monitored by either in vivo sampling coupled to analytical methods or implanted sensors. Sampling is primarily performed using microdialysis, but low-flow push-pull perfusion may offer advantages of spatial resolution while minimizing the tissue disruption associated with higher flow rates. Analytical techniques coupled to these sampling methods include liquid chromatography, capillary electrophoresis, enzyme assays, sensors, and mass spectrometry. Methods for the detection of amino acid, monoamine, neuropeptide, acetylcholine, nucleoside, and soluble gas neurotransmitters have been developed and improved upon. Advances in the speed and sensitivity of these methods have enabled improvements in temporal resolution and increased the number of compounds detectable. Similar advances have enabled improved detection at tissue samples, with a substantial emphasis on single cell and other small samples. Sensors provide excellent temporal and spatial resolution for in vivo monitoring. Advances in application to catecholamines, indoleamines, and amino acids have been prominent. Improvements in stability, sensitivity, and selectivity of the sensors have been of paramount interest.
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Affiliation(s)
- Maura Perry
- University of Michigan, Department of Chemistry, 930 N. University, Ann Arbor, MI 48109-1055, USA
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Kubalczyk P, Bald E. Analysis of orange juice for total cysteine and glutathione content by CZE with UV-absorption detection. Electrophoresis 2009; 30:2280-3. [DOI: 10.1002/elps.200800741] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Lu M, Zhang L, Lu Q, Chi Y, Chen G. Rapid analysis of peptides and amino acids by CE-ESI-MS using chemically modified fused-silica capillaries. Electrophoresis 2009; 30:2273-9. [DOI: 10.1002/elps.200800683] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Issaq HJ, Chan KC, Blonder J, Ye X, Veenstra TD. Separation, detection and quantitation of peptides by liquid chromatography and capillary electrochromatography. J Chromatogr A 2009; 1216:1825-37. [DOI: 10.1016/j.chroma.2008.12.052] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Revised: 12/10/2008] [Accepted: 12/17/2008] [Indexed: 02/09/2023]
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