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Denecke S, Swevers L, Douris V, Vontas J. How do oral insecticidal compounds cross the insect midgut epithelium? INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2018; 103:22-35. [PMID: 30366055 DOI: 10.1016/j.ibmb.2018.10.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/09/2018] [Accepted: 10/21/2018] [Indexed: 06/08/2023]
Abstract
The use of oral insecticidal molecules (small molecules, peptides, dsRNA) via spray or plant mediated applications represents an efficient way to manage damaging insect species. With the exception of Bt toxins that target the midgut epithelium itself, most of these compounds have targets that lie within the hemocoel (body) of the insect. Because of this, one of the greatest factors in determining the effectiveness of an oral insecticidal compound is its ability to traverse the gut epithelium and enter the hemolymph. However, for many types of insecticidal compounds, neither the pathway taken across the gut nor the specific genes which influence uptake are fully characterized. Here, we review how different types of insecticidal compounds enter or cross the midgut epithelium through passive (diffusion) or active (transporter based, endocytosis) routes. A deeper understanding of how insecticidal molecules cross the gut will help to best utilize current insecticides and also provide for more rational design of future ones.
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Affiliation(s)
- Shane Denecke
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, 73100, Heraklion, Greece.
| | - Luc Swevers
- Insect Molecular Genetics and Biotechnology Research Group, Institute of Biosciences & Applications, NCSR "Demokritos", Athens, Greece
| | - Vassilis Douris
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, 73100, Heraklion, Greece
| | - John Vontas
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, 73100, Heraklion, Greece; Department of Crop Science, Pesticide Science Lab, Agricultural University of Athens, Athens, Greece
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2
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Wang Z, Zhang J, Li R, Chen J. Synthesis of cationic magnetite nanoparticles for intracellular protein delivery. J Appl Polym Sci 2013. [DOI: 10.1002/app.40260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zheng Wang
- General Hospital of PLA; Beijing 100853 China
| | - Jianjun Zhang
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
| | - Ruiduan Li
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jianfeng Chen
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
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3
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Cheng C, Zhang X, Wang Y, Sun L, Li C. Phenylboronic acid-containing block copolymers: synthesis, self-assembly, and application for intracellular delivery of proteins. NEW J CHEM 2012. [DOI: 10.1039/c2nj20997g] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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4
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Sui M, Liu W, Shen Y. Nuclear drug delivery for cancer chemotherapy. J Control Release 2011; 155:227-36. [DOI: 10.1016/j.jconrel.2011.07.041] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 07/26/2011] [Accepted: 07/29/2011] [Indexed: 10/25/2022]
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5
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Jager E, van der Velden VHJ, te Marvelde JG, Walter RB, Agur Z, Vainstein V. Targeted drug delivery by gemtuzumab ozogamicin: mechanism-based mathematical model for treatment strategy improvement and therapy individualization. PLoS One 2011; 6:e24265. [PMID: 21915304 PMCID: PMC3168467 DOI: 10.1371/journal.pone.0024265] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 08/05/2011] [Indexed: 12/02/2022] Open
Abstract
Gemtuzumab ozogamicin (GO) is a chemotherapy-conjugated anti-CD33 monoclonal antibody effective in some patients with acute myeloid leukemia (AML). The optimal treatment schedule and optimal timing of GO administration relative to other agents remains unknown. Conventional pharmacokinetic analysis has been of limited insight for the schedule optimization. We developed a mechanism-based mathematical model and employed it to analyze the time-course of free and GO-bound CD33 molecules on the lekemic blasts in individual AML patients treated with GO. We calculated expected intravascular drug exposure (I-AUC) as a surrogate marker for the response to the drug. A high CD33 production rate and low drug efflux were the most important determinants of high I-AUC, characterizing patients with favorable pharmacokinetic profile and, hence, improved response. I-AUC was insensitive to other studied parameters within biologically relevant ranges, including internalization rate and dissociation constant. Our computations suggested that even moderate blast burden reduction prior to drug administration enables lowering of GO doses without significantly compromising intracellular drug exposure. These findings indicate that GO may optimally be used after cyto-reductive chemotherapy, rather than before, or concomitantly with it, and that GO efficacy can be maintained by dose reduction to 6 mg/m2 and a dosing interval of 7 days. Model predictions are validated by comparison with the results of EORTC-GIMEMA AML19 clinical trial, where two different GO schedules were administered. We suggest that incorporation of our results in clinical practice can serve identification of the subpopulation of elderly patients who can benefit most of the GO treatment and enable return of the currently suspended drug to clinic.
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MESH Headings
- Aminoglycosides/pharmacokinetics
- Aminoglycosides/pharmacology
- Antibodies, Monoclonal, Humanized/pharmacokinetics
- Antibodies, Monoclonal, Humanized/pharmacology
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/metabolism
- Antineoplastic Agents/pharmacology
- Cell Line, Tumor
- Gemtuzumab
- Humans
- Leukemia, Myeloid, Acute/metabolism
- Models, Theoretical
- Sialic Acid Binding Ig-like Lectin 3
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Affiliation(s)
- Eva Jager
- Institute for Medical BioMathematics, Bene Ataroth, Israel
| | | | - Jeroen G. te Marvelde
- Department of Immunology, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | - Roland B. Walter
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Division of Hematology, Department of Medicine, University of Washington, Seattle, Washington, United States of America
| | - Zvia Agur
- Institute for Medical BioMathematics, Bene Ataroth, Israel
- Optimata, Ltd, Ramat Gan, Israel
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6
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Yan M, Du J, Gu Z, Liang M, Hu Y, Zhang W, Priceman S, Wu L, Zhou ZH, Liu Z, Segura T, Tang Y, Lu Y. A novel intracellular protein delivery platform based on single-protein nanocapsules. NATURE NANOTECHNOLOGY 2010; 5:48-53. [PMID: 19935648 DOI: 10.1038/nnano.2009.341] [Citation(s) in RCA: 319] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Accepted: 10/12/2009] [Indexed: 05/28/2023]
Abstract
An average cell contains thousands of proteins that participate in normal cellular functions, and most diseases are somehow related to the malfunctioning of one or more of these proteins. Protein therapy, which delivers proteins into the cell to replace the dysfunctional protein, is considered the most direct and safe approach for treating disease. However, the effectiveness of this method has been limited by its low delivery efficiency and poor stability against proteases in the cell, which digest the protein. Here, we show a novel delivery platform based on nanocapsules consisting of a protein core and a thin permeable polymeric shell that can be engineered to either degrade or remain stable at different pHs. Non-degradable capsules show long-term stability, whereas the degradable ones break down their shells, enabling the core protein to be active once inside the cells. Multiple proteins can be delivered to cells with high efficiency while maintaining low toxicity, suggesting potential applications in imaging, therapy and cosmetics fields.
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Affiliation(s)
- Ming Yan
- Department of Chemical and Biomolecular Engineering, University of California at Los Angeles, Los Angeles, California 90095, USA
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7
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Abstract
The intricate problems associated with the delivery and various unnecessary in vivo transitions of proteins and drugs needs to be tackled soon to be able to exploit the myriad of putative therapeutics created by the biotechnology boom. Nanomedicine is one of the most promising applications of nanotechnology in the field of medicine. It has been defined as the monitoring, repair, construction and control of human biological systems at the molecular level using engineered nanodevices and nanostructures. These nanostructured medicines will eventually turn the world of drug delivery upside down. PEGylation (i.e. the attachment of polyethylene glycol to proteins and drugs) is an upcoming methodology for drug development and it has the potential to revolutionise medicine by drastically improving the pharmacokinetic and pharmacodynamic properties of the administered drug. This article provides a total strategy for improving the therapeutic efficacy of various biotechnological products in drug delivery. This article also presents an extensive analysis of most of the PEGylated proteins, peptides and drugs, together with extensive clinical data. Nanomedicines and PEGylation, the latest offshoots of nanotechnology will definitely pave a way in the field of drug delivery where targeted delivery, formulation, in vivo stability and retention are the major challenges.
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Affiliation(s)
- Suphiya Parveen
- Laboratory of Nanomedicine, Institute of Life Sciences, Chandrasekharpur, Bhubaneswar, Orissa, India
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8
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Targeting platinum anti-tumour drugs: Overview of strategies employed to reduce systemic toxicity. Coord Chem Rev 2005. [DOI: 10.1016/j.ccr.2005.03.005] [Citation(s) in RCA: 254] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Al-Huniti NH, Widness JA, Schmidt RL, Veng-Pedersen P. Pharmacokinetic/Pharmacodynamic Analysis of Paradoxal Regulation of Erythropoietin Production in Acute Anemia. J Pharmacol Exp Ther 2004; 310:202-8. [PMID: 14988424 DOI: 10.1124/jpet.104.066027] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The regulatory mechanism responsible for a paradoxal, rapid drop in the erythropoietin (EPO) plasma level seen 2 to 4 days after acute, phlebotomy-induced anemia was investigated in seven adult sheep. To introduce acute anemia, each sheep underwent two phlebotomies where the hemoglobin (Hb) was reduced to 3 or 4 g/dl over 4 to 5 h. The phlebotomies were spaced 4 to 6 weeks apart in three animals, and 8 days apart in four other animals. EPO plasma levels, reticulocyte count, Hb, and p50 for oxygen-Hb dissociation were determined from frequent blood samplings throughout the study period. EPO's disposition pharmacokinetic (PK) and plasma clearance were determined from i.v. bolus injections of tracer amounts of a recombinant human EPO tracer. The controlled drop in Hb resulted in a rapid increase in plasma EPO to 836 +/- 52 mU/ml (mean +/- coefficient of variation percentage) that was followed by a paradoxical rapid drop 2 to 4 days after the phlebotomy while the animals were still very anemic (Hb = 4.3 +/- 15 g/dl). The rapid drop in plasma EPO level could not be explained by the up-regulated clearance (clearance increased by a factor of less than 2.5) or by physiological adaptation (no change in p50, p > 0.05, second phlebotomy to Hb = 3g/dl inadequately stimulated the EPO production). The PK/pharmacodynamic (PD) analysis supports the hypothesis of a limited sustained high EPO production rate in acute anemia, which indicates an apparent deficiency in the regulation of EPO production in acute anemia. The hypothesis was supported by a PK/PD feedback inhibition model that showed good agreement with the data (r = 0.973 +/- 1.57).
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Affiliation(s)
- N H Al-Huniti
- Division of Pharmaceutics, The College of Pharmacy, University of Iowa, Iowa City, Iowa 52242, USA
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10
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Dagdug L, Berezhkovskii AM, Weiss GH. Kinetics of ligand equilibration between tubular and vesicular parts of the endosome. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2004; 69:012902. [PMID: 14995658 DOI: 10.1103/physreve.69.012902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2003] [Revised: 10/10/2003] [Indexed: 05/24/2023]
Abstract
The kinetics of ligand equilibration between the tubular and vesicular parts of the endosome are studied for ligands diffusing in the vesicle and in a narrow cylindrical tubule attached to it. The key quantity in our analysis is the fraction of ligands in the vesicle at time t, P(ves)(t). We derive an expression for the Laplace transform of P(ves)(t) as a function of the vesicle volume and the length and radius of the tubule as well as the ligand diffusion coefficients in the vesicle and in the tubule. This transform is used to find the average equilibration time as a function of the system parameters.
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Affiliation(s)
- Leonardo Dagdug
- Center for Information Technology, National Institutes of Health, Bethesda, Maryland 20892, USA
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11
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Kim IS, Kim SH. Development of polymeric nanoparticulate drug delivery systems: evaluation of nanoparticles based on biotinylated poly(ethylene glycol) with sugar moiety. Int J Pharm 2003; 257:195-203. [PMID: 12711174 DOI: 10.1016/s0378-5173(03)00128-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Liver specific polymeric nanoparticles were designed and synthesized from biotinylated poly(ethylene glycol) conjugated with lactobionic acid containing a galactose moiety (abbreviated as BEL). Synthesized BEL conjugate was identified by Fourier transform-infrared (FT-IR) and 1H-nuclear magnetic resonance (NMR) spectroscopy. The fluorescence spectroscopy data showed that BEL conjugate was self-assembled in water to form core-shell structure nanoparticles, and the critical association concentration (CAC) value was estimated as 0.028 g/l. From the transmission electron microscope (TEM) observation, the BEL nanoparticles were spherically shaped and ranged in size between 30 and 60 nm. The particle size distribution was measured by photon correlation spectroscopy (PCS), and the result was 41.2+/-11.7 nm. Anti-cancer drug all-trans-retinoic acid (ATRA) was loaded into the BEL nanoparticles for evaluating its efficacy as a drug delivery carrier. The crystallinities of ATRA and ATRA-loaded nanoparticles were examined by X-ray diffraction (XRD) patterns. The ATRA release kinetics from the BEL nanoparticles showed a pseudo zero-order pattern during 1-month period.
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Affiliation(s)
- In-Sook Kim
- Department of Biological Chemistry, College of Pharmacy, Chosun University, 375 Seosuk-dong, Dong-gu, Gwangju 501-759, South Korea
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12
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Schraa AJ, Everts M, Kok RJ, Asgeirsdóttir SA, Meijer DKF, de Leij LFMH, Molema G. Development of vasculature targeting strategies for the treatment of cancer and chronic inflammatory diseases. BIOTECHNOLOGY ANNUAL REVIEW 2003; 8:133-65. [PMID: 12436918 DOI: 10.1016/s1387-2656(02)08007-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Endothelial cells play a pathological role in cancer and chronic inflammation and are therefore attractive targets for therapeutic intervention. This review focuses on endothelial cell specific drug targeting strategies for the treatment of these diseases. The cellular and molecular processes involved in the activation of endothelial cells in angiogenesis and inflammation will be reviewed. Various target epitopes expressed by activated endothelium suitable for targeting purposes, design and development of drug-carrier complexes, drugs of interest which might interfere with endothelial cell activation, as well as in vitro and in vivo experimental approaches to study (intra) cellular drug delivery will be discussed.
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Affiliation(s)
- Astrid J Schraa
- Department of Pathology and Laboratory Medicine, Medical Biology Section, Tumor Immunology Laboratory, Groningen University Institute for Drug Exploration (GUIDE), Groningen, The Netherlands.
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13
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Ivanenkov V, Felici F, Menon AG. Uptake and intracellular fate of phage display vectors in mammalian cells. BIOCHIMICA ET BIOPHYSICA ACTA 1999; 1448:450-62. [PMID: 9990297 DOI: 10.1016/s0167-4889(98)00162-1] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Receptor-mediated endocytosis is exploited in experimental systems for selective delivery of genes and drugs into specific cells. To improve targeting efficiency of delivery vectors, we have used phage display technology to isolate novel ligands for endocytosed receptors. We show here that phage vectors internalized by mammalian cells via integrin-mediated endocytosis can be rescued by cell lysis and quantitated by infection of bacteria. Immediately following uptake, phage enter an intracellular compartment where they remain intact, with phage titer unaffected by the addition of chloroquine. Phage are then translocated to a second intracellular compartment in which they are inactivated and their titer affected by chloroquine. Immunofluorescence microscopy showed an association of the second compartment with supranuclear organelles. The ability to recover internalized phage in an infectious form from two distinctive intracellular compartments provides a means to select novel ligands from phage libraries for targeted delivery of macromolecules into mammalian cells.
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Affiliation(s)
- V Ivanenkov
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati, College of Medicine, OH 45267, USA
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14
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Gao J, Niklason L, Zhao XM, Langer R. Surface modification of polyanhydride microspheres. J Pharm Sci 1998; 87:246-8. [PMID: 9519161 DOI: 10.1021/js970284u] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- J Gao
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge 02139, USA
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15
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Abstract
Small GTPases of the Rab subfamily have been known to be key regulators of intracellular membrane traffic since the late 1980s. Today this protein group amounts to more than 40 members in mammalian cells which localize to distinct membrane compartments and exert functions in different trafficking steps on the biosynthetic and endocytic pathways. Recent studies indicate that cycles of GTP binding and hydrolysis by the Rab proteins are linked to the recruitment of specific effector molecules on cellular membranes, which in turn impact on membrane docking/fusion processes. Different Rabs may, nevertheless, have slightly different principles of action. Studies performed in yeast suggest that connections between the Rabs and the SNARE machinery play a central role in membrane docking/fusion. Further elucidation of this linkage is required in order to fully understand the functional mechanisms of Rab GTPases in membrane traffic.
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Affiliation(s)
- V M Olkkonen
- National Public Health Institute, Helsinki, Finland
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