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Ma BL, Zhang ZL. A point-of-care solid-phase colorimetric sensor based on the enzyme-induced metallization for ALP detection. Talanta 2024; 268:125365. [PMID: 37918249 DOI: 10.1016/j.talanta.2023.125365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
Alkaline phosphatase (ALP) is a crucial biomarker for clinical diagnosis, which is closely related to the physiological homeostasis regulation process of human body. And the abnormal level of ALP is associated with numerous diseases, such as liver dysfunction, bone diseases, diabetes, and so on. In order to meet the demand of personalized healthcare, it is particularly important to develop a miniaturized point-of-care testing (POCT) device for ALP detection. Herein, a portable solid-phase colorimetric sensor based on enzyme-induced metallization signal amplification strategy was constructed for ALP detection. The AuNPs modified on the glass slides acted as crystal seeds, allowing Ag+ in the solution to be reduced and deposited on the surface of AuNPs, which further formed the gold core and silver shell (Au@Ag) complex and generated visual signals. The visual signals were recorded by a smartphone and quantified using open-source ImageJ software. Under the optimal conditions, the proposed method exhibited a good linear relationship from 2.0 to 16.0 pM, and the detection limit was as low as 0.9 pM. In addition, it was further successfully applied for ALP detection in non-transparent and complex samples (milk, different types of cells). A sensitive, low cost, rapid and convenient solid-phase sensor was developed for ALP detection, which was expected to provide a promising strategy for POCT devices.
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Affiliation(s)
- Bo-Ling Ma
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Zhi-Ling Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China.
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Hu P, Huang R, Xu Y, Li T, Yin J, Yang Y, Liang Y, Mao X, Ding L, Shu C. A novel and sensitive ratiometric fluorescent quantum dot-based biosensor for alkaline phosphatase detection in biological samples via the inner-filter effect. RSC Adv 2023; 13:2311-2317. [PMID: 36741147 PMCID: PMC9841509 DOI: 10.1039/d2ra06956c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/03/2023] [Indexed: 01/18/2023] Open
Abstract
Alkaline phosphatase (ALP) is an important biomarker whose abnormal level in activity is associated with hepatobiliary, skeletal, and renal diseases as well as cancer. Herein, we synthesized ZnSe@ZnS quantum dots (ZnSe@ZnS QDs) and Mn-doped ZnS quantum dots (Mn:ZnS QDs) as fluorophores to establish the ratiometric fluorescent assay for ALP activity detection in biological samples. p-Nitrophenyl phosphate (PNPP) was used as a substrate for ALP, and the overlaps between absorption spectra of PNPP and excitation spectra of QDs resulted in sharp fluorescence quenching. Under the catalysis of ALP, PNPP was hydrolyzed into p-nitrophenol (PNP), which caused a red shift of absorption band of PNPP and fluorescence recovery of Mn:ZnS QDs (585 nm). However, the overlaps between absorption spectra of PNP and emission spectra of ZnSe@ZnS QDs led a further quenching of ZnSe@ZnS QDs (405 nm). Therefore, the ratiometric fluorescent signals (F 585/F 405) were associated with activity of ALP based on bidirectional responses of QDs to the concentration of PNPP. Under the optimum conditions, the method exhibited a good linear relationship from 4 to 96 U per L (R 2 = 0.9969) with the detection limit of 0.57 U per L. Moreover, the method was successfully applied for detecting the ALP activity in a complex biological matrix (human serum and HepG2 cells) with impressive specificity. In particular, the complicated chemical modifications of QDs and pretreatments of biological samples were not required in the whole detection procedures. Therefore, it not only provided a sensitive, specific and simple approach to clinical ALP activity detection, but it also provided support for early diagnosis of diseases.
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Affiliation(s)
- Penghui Hu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Ruiyan Huang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Ye Xu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Tengfei Li
- Department of Clinical Pharmacology, School of Pharmacy, Sir Run Run Hospital, Nanjing Medical UniversityNanjing 211166China
| | - Jun Yin
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Yu Yang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Yuan Liang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Xiaohan Mao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical UniversityNanjing 211198China
| | - Li Ding
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Chang Shu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
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Rosenkrans ZT, Ferreira CA, Ni D, Cai W. Internally Responsive Nanomaterials for Activatable Multimodal Imaging of Cancer. Adv Healthc Mater 2021; 10:e2000690. [PMID: 32691969 PMCID: PMC7855763 DOI: 10.1002/adhm.202000690] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/03/2020] [Indexed: 12/13/2022]
Abstract
Advances in technology and nanomedicine have led to the development of nanoparticles that can be activated for multimodal imaging of cancer, where a stimulus induces a material modification that enhances image contrast. Multimodal imaging using nanomaterials with this capability can combine the advantages and overcome the limitations of any single imaging modality. When designed with stimuli-responsive abilities, the target-to-background ratio of multimodal imaging nanoprobes increases because specific stimuli in the tumor enhance the signal. Several aspects of the tumor microenvironment can be exploited as an internal stimulus response for multimodal imaging applications, such as the pH gradient, redox processes, overproduction of various enzymes, or combinations of these. In this review, design strategies are discussed and an overview of the recent developments of internally responsive multimodal nanomaterials is provided. Properly implementing this approach improves noninvasive cancer diagnosis and staging as well as provides a method to monitor drug delivery and treatment response.
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Affiliation(s)
- Zachary T Rosenkrans
- Department of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Carolina A Ferreira
- Department of Radiology and Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Dalong Ni
- Department of Radiology and Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Weibo Cai
- Department of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Department of Radiology and Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, 53705, USA
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Dar UQ, Paul VI. Impact of ethanol extract of Anamirta cocculus(Linn.) seeds on tissue damage biomarkers of the predatory catfish Heteropneustes fossilis(Bloch.). JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1080/16583655.2018.1481339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Umer Qadir Dar
- Department of Zoology, Annamalai University, Annamalainagar, India
| | - V. I. Paul
- Department of Zoology, Annamalai University, Annamalainagar, India
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Chirambo G, van Niekerk C, Crowther NJ. Specific knock-down of tissue non-specific alkaline phosphatase mRNA levels inhibits intracellular lipid accumulation in 3T3-L1 and HepG2 cells. Int J Exp Pathol 2017; 98:260-268. [PMID: 28925080 PMCID: PMC5743820 DOI: 10.1111/iep.12243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 08/01/2017] [Indexed: 11/30/2022] Open
Abstract
The use of non-specific inhibitors of tissue non-specific alkaline phosphatase (TNSALP) in pre-adipocytes blocks intracellular lipid accumulation. TNSALP is also expressed in hepatocytes, which are known to accumulate lipid in a similar manner to pre-adipocytes. The purpose of this study was to use specific silencing of TNSALP mRNA, using short interfering (si) RNA, to investigate the role of TNSALP in intracellular lipid accumulation in 3T3-L1 and HepG2 cells. Cellular activity of TNSALP was measured using an automated colorimetric assay, and intracellular lipid accumulation was determined using the lipid-specific dye, Oil Red O. Cells were transfected with siRNA directed against TNSALP mRNA, and expression of the TNSALP gene was determined at selected time points postinduction of lipid droplet formation. Expression of the TNSALP gene was inhibited by a maximum of 88 ± 1.9% (P < 0.005 vs. control) 11 days after initiation of lipid droplet formation in the 3T3-L1 cells and 80 ± 8.9% (P < 0.05 vs. control) after 4 days in the HepG2 cells. This led to significant inhibition of both TNSALP activity and intracellular lipid accumulation in both cell lines. These data demonstrates that TNSALP plays an important role in the control of lipid droplet formation in both pre-adipocyte and hepatocyte cell lines.
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Affiliation(s)
- George Chirambo
- Department of Chemical PathologyNational Health Laboratory ServiceUniversity of Witwatersrand Medical SchoolJohannesburgSouth Africa
- Department of BiochemistryCollege Of MedicineUniversity of MalawiMalawiBlantyre
| | - Chantal van Niekerk
- Department of Chemical PathologyNational Health Laboratory ServiceUniversity of Witwatersrand Medical SchoolJohannesburgSouth Africa
| | - Nigel J. Crowther
- Department of Chemical PathologyNational Health Laboratory ServiceUniversity of Witwatersrand Medical SchoolJohannesburgSouth Africa
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Li H, Li Q, Zhong J, Lin Q, Shen X, Rao P. Enzymatic Hydrolysis Mixture of Donkey Serum Albumin to Inhibit Tumor Cell Proliferation. J Food Biochem 2012. [DOI: 10.1111/jfbc.12014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hao Li
- College of Biological Science and Technology; Fuzhou University; Qishan Campus, 2 Xueyuan Road Fuzhou Fujian 350108 China
| | - Qingye Li
- College of Biological Science and Technology; Fuzhou University; Qishan Campus, 2 Xueyuan Road Fuzhou Fujian 350108 China
| | - Jinchao Zhong
- College of Biological Science and Technology; Fuzhou University; Qishan Campus, 2 Xueyuan Road Fuzhou Fujian 350108 China
| | - Qing Lin
- Fujian Inspection and Research Institute for Product; Fuzhou China
| | - Xiaomiao Shen
- College of Biological Science and Technology; Fuzhou University; Qishan Campus, 2 Xueyuan Road Fuzhou Fujian 350108 China
| | - Pingfan Rao
- College of Biological Science and Technology; Fuzhou University; Qishan Campus, 2 Xueyuan Road Fuzhou Fujian 350108 China
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Li YX, Dan YB, Fang X, Bao JJ. Preliminary studies of a novel multifunctional wide-bore electrophoresis system. Electrophoresis 2010; 31:3247-55. [DOI: 10.1002/elps.201000173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Seferovic MD, Ali R, Kamei H, Liu S, Khosravi JM, Nazarian S, Han VKM, Duan C, Gupta MB. Hypoxia and leucine deprivation induce human insulin-like growth factor binding protein-1 hyperphosphorylation and increase its biological activity. Endocrinology 2009; 150:220-31. [PMID: 18772238 PMCID: PMC2630895 DOI: 10.1210/en.2008-0657] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Fetal growth restriction is often caused by uteroplacental insufficiency that leads to fetal hypoxia and nutrient deprivation. Elevated IGF binding protein (IGFBP)-1 expression associated with fetal growth restriction has been documented. In this study we tested the hypothesis that hypoxia and nutrient deprivation induce IGFBP-1 phosphorylation and increase its biological potency in inhibiting IGF actions. HepG2 cells were subjected to hypoxia and leucine deprivation to mimic the deprivation of metabolic substrates. The total IGFBP-1 levels measured by ELISA were approximately 2- to 2.5-fold higher in hypoxia and leucine deprivation-treated cells compared with the controls. Two-dimensional immunoblotting showed that whereas the nonphosphorylated isoform is the predominant IGFBP-1 in the controls, the highly phosphorylated isoforms were dominant in hypoxia and leucine deprivation-treated cells. Liquid chromatography-tandem mass spectrometry analysis revealed four serine phosphorylation sites: three known sites (pSer 101, pSer 119, and pSer 169); and a novel site (pSer 98). Liquid chromatography-mass spectrometry was used to estimate the changes of phosphorylation upon treatment. Biacore analysis indicated that the highly phosphorylated IGFBP-1 isoforms found in hypoxia and leucine deprivation-treated cells had greater affinity for IGF-I [dissociation constant 5.83E (times 10 to the power)--0 m and 6.40E-09 m] relative to the IGFBP-1 from the controls (dissociation constant approximately 1.54E-07 m). Furthermore, the highly phosphorylated IGFBP-1 had a stronger effect in inhibiting IGF-I-stimulated cell proliferation. These findings suggest that IGFBP-1 phosphorylation may be a novel mechanism of fetal adaptive response to hypoxia and nutrient restriction.
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Affiliation(s)
- Maxim D Seferovic
- Department of Pediatrics, University of Western Ontario, VRL Room A5-136 (WC), 800 Commissioners Road East, London, Ontario, Canada N6C 2V5
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