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Tang R, Jiang Z, Ray M, Hou S, Rotello VM. Cytosolic delivery of large proteins using nanoparticle-stabilized nanocapsules. NANOSCALE 2016; 8:18038-18041. [PMID: 27738697 PMCID: PMC5137506 DOI: 10.1039/c6nr07162g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We report an effective intracellular delivery strategy for proteins of high molecular weight using AuNP stabilized capsules. This strategy provides direct delivery to the cytosol, avoiding endosomal entrapment.
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Affiliation(s)
- Rui Tang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA.
| | - Ziwen Jiang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA.
| | - Moumita Ray
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA.
| | - Singyuk Hou
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA.
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA.
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Trokovic R, Weltner J, Nishimura K, Ohtaka M, Nakanishi M, Salomaa V, Jalanko A, Otonkoski T, Kyttälä A. Advanced feeder-free generation of induced pluripotent stem cells directly from blood cells. Stem Cells Transl Med 2014; 3:1402-9. [PMID: 25355732 DOI: 10.5966/sctm.2014-0113] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Generation of validated human induced pluripotent stem cells (iPSCs) for biobanking is essential for exploring the full potential of iPSCs in disease modeling and drug discovery. Peripheral blood mononuclear cells (PBMCs) are attractive targets for reprogramming, because blood is collected by a routine clinical procedure and is a commonly stored material in biobanks. Generation of iPSCs from blood cells has previously been reported using integrative retroviruses, episomal Sendai viruses, and DNA plasmids. However, most of the published protocols require expansion and/or activation of a specific cell population from PBMCs. We have recently collected a PBMC cohort from the Finnish population containing more than 2,000 subjects. Here we report efficient generation of iPSCs directly from PBMCs in feeder-free conditions in approximately 2 weeks. The produced iPSC clones are pluripotent and transgene-free. Together, these properties make this novel method a powerful tool for large-scale reprogramming of PBMCs and for iPSC biobanking.
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Affiliation(s)
- Ras Trokovic
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Jere Weltner
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Ken Nishimura
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Manami Ohtaka
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Mahito Nakanishi
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Veikko Salomaa
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Anu Jalanko
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Timo Otonkoski
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Aija Kyttälä
- Research Programs Unit, Molecular Neurology and Biomedicum Stem Cell Centre, University of Helsinki, Helsinki, Finland; Research Center for Stem Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; Department of Chronic Disease Prevention and Public Health Genomics Unit, THL Biobank, National Institute for Health and Welfare (THL), Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
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Koning GA, Morselt HW, Kamps JA, Scherphof GL. Uptake and intracellular processing of PEG-liposomes and PEG-immunoliposomes by kupffer cells in vitro 1 *. J Liposome Res 2012; 11:195-209. [PMID: 19530933 DOI: 10.1081/lpr-100108462] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Specific targeting of drugs to for instance tumors or sites of inflammation may be achieved by means of immunoliposomes carrying site-specific antibodies on their surface. The presence of these antibodies may adversely affect the circulation kinetics of such liposomes as a result of interactions with cells of the mononuclear phagocyte system (MPS), mainly represented by macrophages in liver and spleen. The additional insertion of poly(ethylene glycol) chains on the surface of the immunoliposomes may, however, attenuate this effect. We investigated the influence of surface-coupled rat or rabbit antibodies and of PEG on the uptake of liposomes by rat Kupffer cells in culture with (3)H-cholesteryloleyl ether as a metabolically stable marker. Additionally, we assessed the effects of surface-bound IgG and PEG on the intracellular processing of the liposomes by the Kupffer cells, based on a double-label assay using the (3)H-cholesteryl ether as an absolute measure for liposome uptake and the hydrolysis of the degradable marker cholesteryl-(14)C-oleate as relative measure of degradation. Attachment of both rat and rabbit antibodies to PEG-free liposomes caused a several-fold increase in apparent size. The uptake by Kupffer cells, however, was 3-4 fold higher for the rat than for the rabbit IgG liposomes. The presence of PEG drastically reduced the difference between these liposome types. Uptake of liposomes without antibodies amounted to only about 10% (non-PEGylated) or less (PEGylated) of that of the immunoliposomes. In contrast to the marked effects of IgG and PEG on Kupffer cell uptake, the rate of intracellular processing of the liposomes remained virtually unaffected by the presence of these substances on the liposomal surface. These observations are discussed with respect to the design of optimally formulated liposomal drug preparations, combining maximal therapeutic efficacy with minimal toxicity.
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Affiliation(s)
- G A Koning
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, P. O. Box 80082, 3508, TB, Utrecht, The Netherlands
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Kunisawa J, Nakanishi T, Takahashi I, Okudaira A, Tsutsumi Y, Katayama K, Nakagawa S, Kiyono H, Mayumi T. Sendai virus fusion protein mediates simultaneous induction of MHC class I/II-dependent mucosal and systemic immune responses via the nasopharyngeal-associated lymphoreticular tissue immune system. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2001; 167:1406-12. [PMID: 11466359 DOI: 10.4049/jimmunol.167.3.1406] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Nasal administration of Ags using a novel hybrid Ag delivery vehicle composed of envelope glycoproteins of Sendai virus on the surface of liposome membranes (fusogenic liposome) efficiently delivered Ags to Ag-sampling M cells in nasopharyngeal-associated lymphoreticular tissue. Additionally, fusogenic liposomes also effectively delivered the Ags into epithelial cells and macrophages in nasopharyngeal-associated lymphoreticular tissue and nasal passages. In vitro Ag presentation assays clearly showed that fusogenic liposomes effectively presented encapsulated Ags via the MHC class II-dependent pathway of epithelial cells as well as macrophages. Fusogenic liposomes also have an adjuvant activity against mucosal epithelial cells to enhance MHC class II expression. According to these high delivery and adjuvant activities of fusogenic liposomes, nasal immunization with OVA-encapsulated fusogenic liposomes induced high levels of OVA-specific CD4(+) Th1 and Th2 cell responses. Furthermore, Ag-specific CTL responses and Ab productions were also elicited at both mucosal and systemic sites by nasal immunization with Ag-encapsulated fusogenic liposomes. These results indicate that fusogenic liposome is a versatile and effective system for the stimulation of Ag-specific immune responses at both mucosal and systemic compartments.
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Affiliation(s)
- J Kunisawa
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Research Institute for Microbial Diseases, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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Eguchi A, Kondoh T, Kosaka H, Suzuki T, Momota H, Masago A, Yoshida T, Taira H, Ishii-Watabe A, Okabe J, Hu J, Miura N, Ueda S, Suzuki Y, Taki T, Hayakawa T, Nakanishi M. Identification and characterization of cell lines with a defect in a post-adsorption stage of Sendai virus-mediated membrane fusion. J Biol Chem 2000; 275:17549-55. [PMID: 10748180 DOI: 10.1074/jbc.m910004199] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In the early stage of infection, Sendai virus delivers its genome into the cytoplasm by fusing the viral envelope with the cell membrane. Although the adsorption of virus particles to cell surface receptors has been characterized in detail, the ensuing complex process that leads to the fusion between the lipid bilayers remains mostly obscure. In the present study, we identified and characterized cell lines with a defect in the Sendai virus-mediated membrane fusion, using fusion-mediated delivery of fragment A of diphtheria toxin as an index. These cells, persistently infected with the temperature-sensitive variant Sendai virus, had primary viral receptors indistinguishable in number and affinity from those of parental susceptible cells. However, they proved to be thoroughly defective in the Sendai virus-mediated membrane fusion. We also found that viral HN protein expressed in the defective cells was responsible for the interference with membrane fusion. These results suggested the presence of a previously uncharacterized, HN-dependent intermediate stage in the Sendai virus-mediated membrane fusion.
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Affiliation(s)
- A Eguchi
- Department of Neurovirology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 565-0871, Japan
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