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Liu X, Haiyuan W, Mengdi Y, Guangfan H, Qin L, Ruifang Y, Shan Z, Xiaoxia Z, Xiaoqing S, Tao Z. The two-steps reaction fluorescent probe for the selective detection of cysteine and its applications. Chem Biodivers 2021; 19:e202100862. [PMID: 34935289 DOI: 10.1002/cbdv.202100862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/20/2021] [Indexed: 11/09/2022]
Abstract
We reported the specific fluorescent probe (MC-BOD-XDS) with two-steps reaction based on monomercapto-coumarin-BODIPY for selective detection of cysteine,high activty mercapto-coumarin as the multiple reaction group instead of a group internal standard fluorophore. The reaction mechanism of MC-BOD-XDS for detecting cysteine was different from the reported probes about the nucleophilic aromatic substitution reaction (SNAr) of chlorinated BODIPY. The fluorescent color of MC-BOD-XDS changed from yellow to red, and then to orange. The linear calibration diagram showed that it can potentially be used for quantitatively detection of Cys. Its potential applications were demonstrated by employing it for detection of Cys in artificial urine and in fluorescent imaging in HeLa cells.
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Affiliation(s)
- Xueliang Liu
- Xinxiang Medical University, Analysis and Tasting Laboratory, Jinsui Road 601 Xinxiang, Henan 453003, 453003, Xin Xiang City,Henan Province, CHINA
| | - Wei Haiyuan
- Xinxiang Medical University, School of Pharmacy, Jinsui Road 601, Xin Xiang City,, CHINA
| | - Yan Mengdi
- Xinxiang Medical University, School of Pharmacy, Jinsui Road 601, Xin Xiang City,, CHINA
| | - Hai Guangfan
- Xinxiang Medical University, School of Pharmacy, Jinsui Road 601, Xin Xiang City,, CHINA
| | - Li Qin
- Xinxiang Medical University, Analysis and Testing Laboratory, Jinsui Road 601, Xin Xiang City,, CHINA
| | - Yan Ruifang
- Xinxiang Medical University, Analysis and Testing Laboratory, Jinsui Road 601, Xin Xiang City,, CHINA
| | - Zhao Shan
- Xinxiang Medical University, Analysis and Testing Laboratory, Jinsui Road 601, Xin Xiang City,, CHINA
| | - Zhao Xiaoxia
- Xinxiang Medical University, Analysis and Testing Laboratory, Jinsui Road 601, Xin Xiang City,, CHINA
| | - Sun Xiaoqing
- Xinxiang Medical University, School of Pharmacy, Jinsui Road 601, Xin Xiang City,, CHINA
| | - Zhang Tao
- Xinxiang Medical University, School of Pharmacy, Jinsui Road 601, Xin Xiang City,, CHINA
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Sueksakit K, Thongboonkerd V. Optimization of artificial urine formula for in vitro cellular study compared with native urine. Int J Med Sci 2021; 18:3271-3279. [PMID: 34400896 PMCID: PMC8364465 DOI: 10.7150/ijms.61720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/07/2021] [Indexed: 12/26/2022] Open
Abstract
Several artificial urine (AU) formulas have been developed to mimic the normal urine. Most of them are protein-free, particularly when secreted proteins (secretome) is to be analyzed. However, the normal urine actually contains a tiny amount of proteins. We hypothesized that urinary proteins at physiologic level play a role in preservation of renal cell biology and function. This study evaluated the effects from supplementation of 0-10% fetal bovine serum (FBS) into the well-established AU-Siriraj protocol on MDCK renal tubular cells. Time to deformation (TD) was reduced by both native urine and AU-Siriraj without/with FBS compared with complete culture medium (control). Among the native urine and AU-Siriraj without/with FBS, the cells in AU-Siriraj+2.5% FBS had the longest TD. Supplementation of FBS increased cell death in a dose-dependent manner (but still <10%). Transepithelial electrical resistance (TER) of the polarized cells in the native urine was comparable to the control, whereas that of the cells in AU-Siriraj+2.5% FBS had the highest TER. These data indicate that supplementation of 2.5% FBS into AU-Siriraj can prolong time to deformation and enhance polarization of renal tubular cells. Therefore, AU-Siriraj+2.5% FBS is highly recommended for in vitro study of cell biology and function (when secretome is not subjected to analysis).
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Affiliation(s)
- Kanyarat Sueksakit
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
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von Palubitzki L, Wang Y, Hoffmann S, Vidal-Y-Sy S, Zobiak B, Failla AV, Schmage P, John A, Osorio-Madrazo A, Bauer AT, Schneider SW, Goycoolea FM, Gorzelanny C. Differences of the tumour cell glycocalyx affect binding of capsaicin-loaded chitosan nanocapsules. Sci Rep 2020; 10:22443. [PMID: 33384430 PMCID: PMC7775450 DOI: 10.1038/s41598-020-79882-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 12/11/2020] [Indexed: 12/16/2022] Open
Abstract
The glycocalyx regulates the interaction of mammalian cells with extracellular molecules, such as cytokines. However, it is unknown to which extend the glycocalyx of distinct cancer cells control the binding and uptake of nanoparticles. In the present study, exome sequencing data of cancer patients and analysis of distinct melanoma and bladder cancer cell lines suggested differences in cancer cell-exposed glycocalyx components such as heparan sulphate. Our data indicate that glycocalyx differences affected the binding of cationic chitosan nanocapsules (Chi-NCs). The pronounced glycocalyx of bladder cancer cells enhanced the internalisation of nanoencapsulated capsaicin. Consequently, capsaicin induced apoptosis in the cancer cells, but not in the less glycosylated benign urothelial cells. Moreover, we measured counterion condensation on highly negatively charged heparan sulphate chains. Counterion condensation triggered a cooperative binding of Chi-NCs, characterised by a weak binding rate at low Chi-NC doses and a strongly increased binding rate at high Chi-NC concentrations. Our results indicate that the glycocalyx of tumour cells controls the binding and biological activity of nanoparticles. This has to be considered for the design of tumour cell directed nanocarriers to improve the delivery of cytotoxic drugs. Differential nanoparticle binding may also be useful to discriminate tumour cells from healthy cells.
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Affiliation(s)
- Lydia von Palubitzki
- Experimental Dermatology, Department of Dermatology and Venereology, University Medical Center Hamburg-Eppendorf, Research Campus, Martinistraße 52, 20246, Hamburg, Germany
| | - Yuanyuan Wang
- Experimental Dermatology, Department of Dermatology and Venereology, University Medical Center Hamburg-Eppendorf, Research Campus, Martinistraße 52, 20246, Hamburg, Germany
| | - Stefan Hoffmann
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Schlossplatz 7-8, 48143, Münster, Germany
| | - Sabine Vidal-Y-Sy
- Experimental Dermatology, Department of Dermatology and Venereology, University Medical Center Hamburg-Eppendorf, Research Campus, Martinistraße 52, 20246, Hamburg, Germany
| | - Bernd Zobiak
- Microscopy Imaging Facility, University Medical Center Hamburg-Eppendorf, Research Campus, Martinistraße 52, 20246, Hamburg, Germany
| | - Antonio V Failla
- Microscopy Imaging Facility, University Medical Center Hamburg-Eppendorf, Research Campus, Martinistraße 52, 20246, Hamburg, Germany
| | - Petra Schmage
- Clinic of Periodontology, Preventive and Operative Dentistry, Center of Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Axel John
- Department of Urology, University Medical Center of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Anayancy Osorio-Madrazo
- Institute of Microsystems Engineering (IMTEK), Freiburg Materials Research Center (FMF), and Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, 79104, Freiburg, Germany
| | - Alexander T Bauer
- Experimental Dermatology, Department of Dermatology and Venereology, University Medical Center Hamburg-Eppendorf, Research Campus, Martinistraße 52, 20246, Hamburg, Germany
| | - Stefan W Schneider
- Experimental Dermatology, Department of Dermatology and Venereology, University Medical Center Hamburg-Eppendorf, Research Campus, Martinistraße 52, 20246, Hamburg, Germany
| | - Francisco M Goycoolea
- School of Food Science and Nutrition, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Christian Gorzelanny
- Experimental Dermatology, Department of Dermatology and Venereology, University Medical Center Hamburg-Eppendorf, Research Campus, Martinistraße 52, 20246, Hamburg, Germany.
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Zhan L, Hou Z, Huang G. Agarose hydrogel-enhanced paper spray ionization mass spectrometry for metabolite detection in raw urine. Analyst 2020; 145:2118-2124. [PMID: 32129328 DOI: 10.1039/c9an02624j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Rapid analysis of metabolites in biofluids is of great importance for disease diagnosis or new-born disease screening. Herein, we introduce an agarose hydrogel conditioning method to enhance the performance of paper spray ionization mass spectrometry. With facile and fast hydrogel conditioning, the signal intensity of therapeutic drugs spiked in urine was 5 to 15 fold higher than that in direct paper spray ionization mass spectrometry analysis. Consequently, the sensitivity of metabolites in urine was improved via hydrogel conditioning, resulting in 9 to 15 fold decrease in the possibility of detection (POD) levels. These results show that agarose hydrogel conditioning coupled with paper spray ionization mass spectrometry could serve as a facile ionization method for ambient mass spectrometry, which might be useful in fast screening of metabolites and therapeutic drugs in raw biofluids.
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Affiliation(s)
- Liujuan Zhan
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, P.R. China
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