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Shi H, Imberti C, Huang H, Hands-Portman I, Sadler PJ. Biotinylated photoactive Pt(iv) anticancer complexes. Chem Commun (Camb) 2020; 56:2320-2323. [PMID: 31990000 DOI: 10.1039/c9cc07845b] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Novel biotinylated diazido-Pt(iv) complexes exhibit high visible light photocytotoxicity while being stable in the dark. Photocytotoxicity and cellular accumulation of all-trans-[Pt(py)2(N3)2(biotin)(OH)] (2a) were enhanced significantly when bound to avidin; irradiation induced dramatic cellular morphological changes in human ovarian cancer cells treated with 2a.
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Affiliation(s)
- Huayun Shi
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK.
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2
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Diainabo KJ, Neuse EW, Chen CT, Lynne Van Zyl R. Design and synthesis of polysapartamide co-drugs of platinum and methotrexate as anticancer agents. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1455681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Kayembe Jacques Diainabo
- Polymer Research Group, School of Chemistry, University of the Witwatersrand, Johannesburg, South Africa
- Pharmacology Division, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - E. W. Neuse
- Polymer Research Group, School of Chemistry, University of the Witwatersrand, Johannesburg, South Africa
| | - Chien-Teng Chen
- Pharmacology Division, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Robyn Lynne Van Zyl
- Pharmacology Division, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Shi JF, Wu P, Jiang ZH, Wei XY. Synthesis and tumor cell growth inhibitory activity of biotinylated annonaceous acetogenins. Eur J Med Chem 2013; 71:219-28. [PMID: 24308999 DOI: 10.1016/j.ejmech.2013.11.012] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 10/30/2013] [Accepted: 11/07/2013] [Indexed: 10/26/2022]
Abstract
Nineteen biotinylated squamocin/bullatacin derivatives have been synthesized for targeted delivery to biotin receptor overexpressed tumor cells. Most biotinylated squamocin and bullatacin derivatives show similar in vitro cytotoxicity against the biotin receptor non-overexpressed L1210 cells as squamocin and bullatacin, respectively, while against biotin receptor overexpressed 4T1 and P815 tumor cells, several derivatives show significantly higher potency and better selectivity. Among all the synthesized compounds, 15,28-di-O-(6-biotinylamidohexanoyl)squamocin (16) is the most potent, which is 10 and 26 times more active than squamocin against 4T1 and P815 cells, respectively. Compound 16 also appears to be six and fifteen times more selective than squamocin towards 4T1 and P815 cells, respectively, against L1210 cells. The structure activity relationship analysis has revealed that the preferred site for biotinylation is different for squamocin and bullatacin, and it also depends on whether a linking spacer is present.
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Affiliation(s)
- Jing-Fang Shi
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China; University of Chinese Academy of Sciences, Yuquanlu 19A, Beijing 100049, China
| | - Ping Wu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China
| | - Zi-Hua Jiang
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada.
| | - Xiao-Yi Wei
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China.
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Efficient hepatic delivery of drugs: novel strategies and their significance. BIOMED RESEARCH INTERNATIONAL 2013; 2013:382184. [PMID: 24286077 PMCID: PMC3826320 DOI: 10.1155/2013/382184] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 08/14/2013] [Accepted: 08/25/2013] [Indexed: 02/06/2023]
Abstract
Liver is a vital organ responsible for plethora of functions including detoxification, protein synthesis, and the production of biochemicals necessary for the sustenance of life. Therefore, patients with chronic liver diseases such as viral hepatitis, liver cirrhosis, and hepatocellular carcinoma need immediate attention to sustain life and as a result are often exposed to the prolonged treatment with drugs/herbal medications. Lack of site-specific delivery of these medications to the hepatocytes/nonparenchymal cells and adverse effects associated with their off-target interactions limit their continuous use. This calls for the development and fabrication of targeted delivery systems which can deliver the drug payload at the desired site of action for defined period of time. The primary aim of drug targeting is to manipulate the whole body distribution of drugs, that is, to prevent distribution to non-target cells and concomitantly increase the drug concentration at the targeted site. Carrier molecules are designed for their selective cellular uptake, taking advantage of specific receptors or binding sites present on the surface membrane of the target cell. In this review, various aspects of liver targeting of drug molecules and herbal medications have been discussed which elucidate the importance of delivering the drugs/herbal medications at their desired site of action.
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Xu WM, Feng M, Zhao HY, Xie MX, Li WY, Fu R. Preparation of thrombosis-targeted lipid microbubbles and determination of rabbit carotid artery thrombosis by microbubbles ultrasonogaphy. ACTA ACUST UNITED AC 2013; 33:146-152. [DOI: 10.1007/s11596-013-1088-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Indexed: 10/27/2022]
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6
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Qu W, Qin SY, Kuang Y, Zhuo RX, Zhang XZ. Peptide-based vectors mediated by avidin–biotin interaction for tumor targeted gene delivery. J Mater Chem B 2013; 1:2147-2154. [DOI: 10.1039/c3tb00226h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Qu W, Chen WH, Kuang Y, Zeng X, Cheng SX, Zhou X, Zhuo RX, Zhang XZ. Avidin–Biotin Interaction Mediated Peptide Assemblies as Efficient Gene Delivery Vectors for Cancer Therapy. Mol Pharm 2012; 10:261-9. [DOI: 10.1021/mp300392z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Wei Qu
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Wei-Hai Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Ying Kuang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Xuan Zeng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Si-Xue Cheng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Xiang Zhou
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Ren-Xi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
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Park M, Jose J, Thömmes S, Kim JI, Kang MJ, Pyun JC. Autodisplay of streptavidin. Enzyme Microb Technol 2010; 48:307-11. [PMID: 22112942 DOI: 10.1016/j.enzmictec.2010.12.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2010] [Revised: 10/31/2010] [Accepted: 12/11/2010] [Indexed: 10/18/2022]
Abstract
Streptavidin was expressed on the outer membrane of E. coli as a recombinant fusion protein with an autotransporter domain called AIDA-I (adhesin involved in diffuse adherence) using autodisplay technology. The autodisplay of streptavidin was confirmed by SDS-PAGE of the outer membrane proteins, and the number of autodisplayed streptavidin molecules on a single E. coli cell was evaluated with densitometric analysis. The biotin-binding activity of the autodisplayed streptavidin was estimated after treatment with fluorescently labeled biotin by fluorescence microscopy and flow cytometry. The biotin-binding activity of the E. coli with autodisplayed streptavidin was compared with the activity of streptavidin immobilized on magnetic beads. Finally, the outer membrane presenting autodisplayed streptavidin was isolated and layered on a 96-well microplate for an immunoassay.
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Affiliation(s)
- Min Park
- School of Materials and Sciences, College of Engineering, Yonsei University, 134 Shin-chon-dong, Seo-dae-mun-gu, Seoul 120-749, Republic of Korea
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Wang X, Kaplan DL. Functionalization of Silk Fibroin with NeutrAvidin and Biotin. Macromol Biosci 2010; 11:100-10. [DOI: 10.1002/mabi.201000173] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2010] [Revised: 04/09/2010] [Indexed: 01/03/2023]
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Liu J, Zhang L, Wang C, Xu H, Zhao X. Preparation and characterization of lectin-conjugated chitosan fluorescent nanoparticles. MOLECULAR BIOSYSTEMS 2010; 6:954-7. [DOI: 10.1039/b927040j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Zeng X, Sun YX, Zhang XZ, Zhuo RX. Biotinylated disulfide containing PEI/avidin bioconjugate shows specific enhanced transfection efficiency in HepG2 cells. Org Biomol Chem 2009; 7:4201-10. [PMID: 19795058 DOI: 10.1039/b910831a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Targeting of non-viral gene vectors to liver cells could offer the opportunity to cure liver diseases. In this paper, disulfide-containing polyethylenimine (PEI-SS) was synthesized from low molecular weight branched PEI and cystamine bisacrylamide (CBA), and then grafted with biotin. The obtained biotinylated PEI-SS was bioconjugated with avidin via the biotin-avidin interaction to form a novel gene vector, biotinylated PEI-SS/avidin bioconjugate (ABP-SS). Characteristics of ABP-SS and its pDNA complexes were evaluated in terms of acid-base titration, agarose gel electrophoresis, SEM morphology observation, particle size and zeta-potential measurements, and PEI-SS was used as the control. The acid-base titration results showed that ABP-SS exhibited comparable buffer capability to 25 kDa PEI. The results of gel electrophoresis indicated that ABP-SS was able to condense pDNA efficiently at an N/P ratio of 6 and could be degraded by reducing agent DTT. The ABP-SS/pDNA complexes had a mean particle size of 226 +/- 40 nm and surface charges of 25 mV. The SEM images showed that the complexes had compact structures with spherical or quadrate shapes. In vitro cell viability and transfection of ABP-SS and PEI-SS were compared in HepG2, 293T and H446 cells. Among the three different cell lines, compared with PEI-SS, ABP-SS exhibited much lower cytotoxicity and higher transfection efficacy in HepG2 cells due to the biocompatibility of avidin and the specific interactions between avidin and HepG2 cells. Molecular probes were used to reveal the cellular uptake of complexes, and the results demonstrated that ABP-SS contributes to more cellular uptake of complexes in HepG2 cells, which was consistent with the transfection results.
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Affiliation(s)
- Xuan Zeng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
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Zeng X, Sun YX, Zhang XZ, Cheng SX, Zhuo RX. A Potential Targeting Gene Vector Based on Biotinylated Polyethyleneimine/Avidin Bioconjugates. Pharm Res 2009; 26:1931-41. [DOI: 10.1007/s11095-009-9920-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2008] [Accepted: 05/28/2009] [Indexed: 12/19/2022]
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Qureshi MH, Wong SL. Design, production, and characterization of a monomeric streptavidin and its application for affinity purification of biotinylated proteins. Protein Expr Purif 2002; 25:409-15. [PMID: 12182820 DOI: 10.1016/s1046-5928(02)00021-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To expand the application of the streptavidin-biotin technology for reversible affinity purification of biotinylated proteins, a novel form of monomeric streptavidin was engineered and produced using Bacillus subtilis as the expression host. By changing as little as two amino acid residues (T90 and D128) to alanine, the resulting mutant streptavidin designated DM3 was produced 100% in the monomeric form as a soluble functional protein via secretion. It remained in the monomeric state in the presence or absence of biotin. Interaction of purified monomeric streptavidin with biotin was studied by surface plasmon resonance-based BIAcore biosensor. Its on-rate is comparable to that of monomeric avidin while its off-rate is seven times lower. The dissociation constant was determined to be 1.3 x 10(-8)M. These properties make it an attractive agent for affinity purification of biotinylated proteins. An affinity matrix with immobilized DM3 mutein was prepared and applied to purify biotinylated cytochrome c from a crude extract. Biotinylated cytochrome c could be purified to homogeneity in one step and was shown to retain full biological activity. Advantages of using DM3 mutein over other traditional methods in the purification of biotinylated proteins are discussed.
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Affiliation(s)
- Mohammad Hassan Qureshi
- Department of Biological Sciences, Division of Cellular, Molecular and Microbial Biology, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4
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Morelli M, Pinna A. Modulation by adenosine A2A receptors of dopamine-mediated motor behavior as a basis for antiparkinson?s disease drugs. Drug Dev Res 2001. [DOI: 10.1002/ddr.1138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ohana G, Bar-Yehuda S, Barer F, Fishman P. Differential effect of adenosine on tumor and normal cell growth: focus on the A3 adenosine receptor. J Cell Physiol 2001; 186:19-23. [PMID: 11147810 DOI: 10.1002/1097-4652(200101)186:1<19::aid-jcp1011>3.0.co;2-3] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Adenosine is an ubiquitous nucleoside present in all body cells. It is released from metabolically active or stressed cells and subsequently acts as a regulatory molecule through binding to specific A1, A2A, A2B and A3 cell surface receptors. The synthesis of agonists and antagonists to the adenosine receptors and their cloning enabled the exploration of their physiological functions. As nearly all cells express specific adenosine receptors, adenosine serves as a physiological regulator and acts as a cardioprotector, neuroprotector, chemoprotector, and as an immunomodulator. At the cellular level, activation of the receptors by adenosine initiates signal transduction mechanisms through G-protein associated receptors. Adenosine's unique characteristic is to differentially modulate normal and transformed cell growth, depending upon its extracellular concentration, the expression of adenosine cell surface receptors, and the physiological state of the target cell. Stimulation of cell proliferation following incubation with adenosine has been demonstrated in a variety of normal cells in the range of low micromolar concentrations, including mesangial and thymocyte cells, Swiss mouse 3T3 fibroblasts, and bone marrow cells. Induction of apoptosis in tumor or normal cells was shown at higher adenosine concentrations (>100 microM) such as in leukemia HL-60, lymphoma U-937, A431 epidermoid cells, and GH3 tumor pituitary cell lines. It was further noted that the A3 adenosine receptor (A3AR) plays a key role in the inhibitory and stimulatory growth activities of adenosine. Modulation of the A3AR was found to affect cell growth either positively or negatively depending on the concentration of the agonist, similar to the effect described for adenosine. At nanomolar concentrations, the A3AR agonists possess dual activity, i.e., antiproliferative activity toward tumor cells and stimulatory effect on bone marrow cells. In vivo, these agonists exerted anti-cancer effects, and when given in combination with chemotherapy, they enhanced the chemotherapeutic index and acted as chemoprotective agents. Taken together, activation of the A3AR, by minute concentrations of its natural ligand or synthetic agonists, may serve as a new approach for cancer therapy.
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Affiliation(s)
- G Ohana
- Laboratory of Clinical and Tumor Immunology, The Felsenstein Medical Research Center, Tel-Aviv University, Petach-Tikva, Israel
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