1
|
Leslie KG, Berry SS, Miller GJ, Mahon CS. Sugar-Coated: Can Multivalent Glycoconjugates Improve upon Nature's Design? J Am Chem Soc 2024; 146:27215-27232. [PMID: 39340450 DOI: 10.1021/jacs.4c08818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2024]
Abstract
Multivalent interactions between receptors and glycans play an important role in many different biological processes, including pathogen infection, self-recognition, and the immune response. The growth in the number of tools and techniques toward the assembly of multivalent glycoconjugates means it is possible to create synthetic systems that more and more closely resemble the diversity and complexity we observe in nature. In this Perspective we present the background to the recognition and binding enabled by multivalent interactions in nature, and discuss the strategies used to construct synthetic glycoconjugate equivalents. We highlight key discoveries and the current state of the art in their applications to glycan arrays, vaccines, and other therapeutic and diagnostic tools, with an outlook toward some areas we believe are of most interest for future work in this area.
Collapse
Affiliation(s)
- Kathryn G Leslie
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| | - Sian S Berry
- Centre for Glycoscience and School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Gavin J Miller
- Centre for Glycoscience and School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Clare S Mahon
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| |
Collapse
|
2
|
Pumford EA, Jackson Hoffman BA, Kasko AM. Nontoxic Initiator Alternatives to TEMED for Redox Hydrogel Polymerization. ACS APPLIED BIO MATERIALS 2024; 7:2264-2271. [PMID: 38486460 DOI: 10.1021/acsabm.3c01264] [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] [Indexed: 04/16/2024]
Abstract
Polymeric hydrogels are versatile biomaterials, offering unique advantages in tunability and biocompatibility that make them well-suited to a range of applications. Cross-linking, a fundamental step in hydrogel fabrication, is often initiated using a toxic redox system, ammonium persulfate (APS), and tetramethylethylenediamine (TEMED), which hinders hydrogel utility in direct contact with cells (e.g., wound dressings). To overcome this limitation, we developed alternative redox gelation systems that serve as nontoxic replacements for TEMED. The alternate initiators were either synthetic or bioinspired amine-containing polymers, Glycofect and polyethylenimine (PEI). Used with APS, these initiator candidates produced hydrogels with short gelation time and comparable moduli to TEMED-based gels and underwent further mechanical testing and biocompatibility characterization. While achieving mechanical properties similar to those of the control, the gels based on Glycofect and PEI outperformed TEMED-based gels in two cell viability studies, with Glycofect-initiated gels displaying significantly higher cytocompatibility. Taken together, these results indicate that Glycofect may serve as a drop-in replacement for TEMED to fabricate hydrogels with improved biocompatibility.
Collapse
Affiliation(s)
- Elizabeth A Pumford
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Brooke A Jackson Hoffman
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Andrea M Kasko
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| |
Collapse
|
3
|
Kreofsky NW, Roy P, Brown ME, Perez U, Leighton RE, Frontiera RR, Reineke TM. Cinchona Alkaloid Polymers Demonstrate Highly Efficient Gene Delivery Dependent on Stereochemistry, Methoxy Substitution, and Length. Biomacromolecules 2024; 25:486-501. [PMID: 38150323 DOI: 10.1021/acs.biomac.3c01099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Nucleic acid delivery with cationic polymers is a promising alternative to expensive viral-based methods; however, it often suffers from a lower performance. Herein, we present a highly efficient delivery system based on cinchona alkaloid natural products copolymerized with 2-hydroxyethyl acrylate. Cinchona alkaloids are an attractive monomer class for gene delivery applications, given their ability to bind to DNA via both electrostatics and intercalation. To uncover the structure-activity profile of the system, four structurally similar cinchona alkaloids were incorporated into polymers: quinine, quinidine, cinchonine, and cinchonidine. These polymers differed in the chain length, the presence or absence of a pendant methoxy group, and stereochemistry, all of which were found to alter gene delivery performance and the ways in which the polymers overcome biological barriers to transfection. Longer polymers that contained the methoxy-bearing cinchona alkaloids (i.e., quinine and quinidine) were found to have the best performance. These polymers exhibited the tightest DNA binding, largest and most abundant DNA-polymer complexes, and best endosomal escape thanks to their increased buffering capacity and closest nuclear proximity of the payload. Overall, this work highlights the remarkable efficiency of polymer systems that incorporate cinchona alkaloid natural products while demonstrating the profound impact that small structural changes can have on overcoming biological hurdles associated with gene delivery.
Collapse
Affiliation(s)
- Nicholas W Kreofsky
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Punarbasu Roy
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mary E Brown
- University Imaging Centers, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Ulises Perez
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Ryan E Leighton
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Renee R Frontiera
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
4
|
Song J, Song Y, Jang H, Moon J, Kang H, Huh YM, Son HY, Rho HW, Park M, Lim EK, Jung J, Jung Y, Park HG, Lee KG, Im SG, Kang T. Elution-free DNA detection using CRISPR/Cas9-mediated light-up aptamer transcription: Toward all-in-one DNA purification and detection tube. Biosens Bioelectron 2023; 225:115085. [PMID: 36696850 DOI: 10.1016/j.bios.2023.115085] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/31/2022] [Accepted: 01/16/2023] [Indexed: 01/18/2023]
Abstract
Accurate and efficient detection of DNA is crucial for disease diagnosis and health monitoring. The traditional methods for DNA analysis involve multiple steps, including sample preparation, lysis, extraction, amplification, and detection. In this study, we present a one-step elution-free DNA analysis method based on the combination of clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9)-mediated light-up aptamer transcription (CLAT) assay and a DNA-capturing poly(2-dimethylaminomethyl styrene) (pDMAMS)-coated tube. The sample solution and lysis buffer are added to the pDMAMS-coated tube, and the DNA is efficiently captured on the surface via electrostatic interaction and directly detected by CLAT assay. The ability of the CRISPR/Cas9 system to specifically recognize DNA enables direct detection of DNA captured on the pDMAMS-coated tube. The combination of CLAT assay and pDMAMS-coated tube simplifies DNA detection in a single tube without the need for complicated extraction steps, improving sensitivity. Our platform demonstrated attomolar sensitivity in the detection of target DNA in cell lysate (0.92 aM), urine (7.7 aM), and plasma (94.6 aM) samples within 1 h. The practical applicability of this method was further demonstrated in experiments with tumor-bearing mice. We believe that this approach brings us closer to an all-in-one DNA purification and detection tube system and has potential applications in tissue and liquid biopsies, as well as various other DNA sensing applications.
Collapse
Affiliation(s)
- Jayeon Song
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Younseong Song
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Division of Nano-Bio Sensors/Chips Development, National NanoFab Center (NNFC), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyowon Jang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jeong Moon
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyunju Kang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Department of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yong-Min Huh
- Department of Radiology, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea; Department of Biochemistry & Molecular Biology, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea; Severance Biomedical Science Institute, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea; YUHS-KRIBB Medical Convergence Research Institute, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hye Young Son
- Department of Radiology, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea; Severance Biomedical Science Institute, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hyun Wook Rho
- Department of Radiology, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Mirae Park
- Department of Radiology, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea; School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Juyeon Jung
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Yongwon Jung
- Department of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Kyoung G Lee
- Division of Nano-Bio Sensors/Chips Development, National NanoFab Center (NNFC), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Taejoon Kang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| |
Collapse
|
5
|
Rajendran AP, Ogundana O, Morales LC, Meenakshi Sundaram DN, Kucharski C, Kc R, Uludağ H. Transfection Efficacy and Cellular Uptake of Lipid-Modified Polyethyleneimine Derivatives for Anionic Nanoparticles as Gene Delivery Vectors. ACS APPLIED BIO MATERIALS 2023; 6:1105-1121. [PMID: 36853230 DOI: 10.1021/acsabm.2c00978] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Cationic polyethylenimine (PEI)-based nonviral gene carriers have been desirable to overcome the limitations of viral vectors in gene therapy. A range of PEI derivatives were designed, synthesized, and evaluated for nonviral delivery applications of plasmid DNA (pDNA). Linolenic acid, lauric acid, and oleic acid were covalently conjugated with low-molecular-weight PEI (Mw ∼ 1200 Da) via two different linkers, gallic acid (GA) and p-hydroxybenzoic acid (PHPA), that allows a differential loading of lipids per modified amine (3 vs 1, respectively). 1H NMR spectrum confirmed the expected structure of the conjugates as well as the level of lipid substitution. SYBR Green binding assay performed to investigate the 50% binding concentration (BC50) of lipophilic polymers to pDNA revealed increased BC50 with an increased level of lipid substitution. The particle analysis determined that GA- and PHPA-modified lipopolymers gave pDNA complexes with ∼300 and ∼100 nm in size, respectively. At the polymer/pDNA ratio of 5.0, the ζ-potentials of the complexes were negative (-6.55 to -10.6 mV) unlike the complexes with the native PEI (+11.2 mV). The transfection experiments indicated that the prepared lipopolymers showed higher transfection in attachment-dependent cells than in suspension cells based on the expression of the reporter green fluorescent protein (GFP) gene. When loaded with Cy3-labeled pDNA, the lipopolymers exhibited effective cellular uptake in attachment-dependent cells while the cellular uptake was limited in suspension cells. These results demonstrate the potential of lipid-conjugated PEI via GA and PHPA linkers, which are promising for the modification of anchorage-dependent cells.
Collapse
Affiliation(s)
- Amarnath Praphakar Rajendran
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Oluwanifemi Ogundana
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Luis Carlos Morales
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | | | - Cezary Kucharski
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Remant Kc
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hasan Uludağ
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2H1, Canada
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| |
Collapse
|
6
|
Luo HC, Mai KJ, Liu E, Chen H, Xie YJ, Zheng YX, Lin R, Zhang LM, Zhang Y. Efficiency and Safety of Dextran-PAMAM/siMMP-9 Complexes for Decreasing Matrix Metalloproteinase-9 Expression and Promoting Wound Healing in Diabetic Rats. Bioconjug Chem 2022; 33:2398-2410. [PMID: 36374571 DOI: 10.1021/acs.bioconjchem.2c00487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Difficult healing of diabetic foot ulcers is associated with overexpression of matrix metalloproteinase 9 (MMP-9) in the local wound. Therefore, strategies aimed at downregulation of MMP-9 levels in ulcer sites may promote tissue regeneration and accelerate healing of diabetic foot ulcers (DFU). To fulfill this aim, we exploited dextran conjugated with poly(amidoamine) (Dextran-PAMAM) as a gene carrier to deliver MMP-9 targeted siRNA (siMMP-9). The prepared complexes could be efficiently endocytosed with low cytotoxicity to HaCat cells. Dextran-PAMAM could efficiently deliver siMMP-9 and significantly inhibit MMP-9 expression in vitro. Diabetic rats wound models showed that topical application of the Dextran-PAMAM/siMMP-9 complex effectively knocked down MMP-9 expression in skin wound tissue, thus accelerating wound healing. Taken together, this study demonstrates that the Dextran-PAMAM/siMMP-9 complex possesses high potential for wound healing and could serve as a promising regenerative platform for improving DFU healing.
Collapse
Affiliation(s)
- Heng-Cong Luo
- Department of Endocrinology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou510150, China
| | - Kai-Jin Mai
- DSAPM Lab and PCFM Lab, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou510275, China.,National-Certified Enterprise Technology Center, Kingfa Science and Technology Co., LTD., Guangzhou510663, China
| | - En Liu
- Department of Endocrinology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou510150, China
| | - Hui Chen
- Department of Endocrinology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou510150, China
| | - Yi-Juan Xie
- Department of Endocrinology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou510150, China
| | - Yong-Xiong Zheng
- Department of Endocrinology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou510150, China
| | - Rong Lin
- Department of Endocrinology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou510150, China
| | - Li-Ming Zhang
- DSAPM Lab and PCFM Lab, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou510275, China
| | - Ying Zhang
- Department of Endocrinology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou510150, China
| |
Collapse
|
7
|
Phunpee S, Chirachanchai S, Ruktanonchai UR. Brush-Structured Chitosan/PolyHEMA with Thymine and Its Synergistic Effect on the Specific Interaction with ssDNA and Cellular Uptake. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:5915-5923. [PMID: 35439019 DOI: 10.1021/acs.langmuir.2c00559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Cationic polymers are known to attach on an anionic cell surface and favor gene transportation/transfection into the cells. However, when the positive charges accumulate, they tend to cause cell damage and delivery failure. Chitosan (CS) is a potential cationic bio-derived polymer whose chemical structures can be modified to fine-tune the charges as well as the add-on functions. The present work demonstrates (i) the decoration of a nucleic acid sequence-like brush structure on CS to allow the specific interaction with DNA and (ii) delivery into the cell. By simply applying mercaptoacetic acid as the chain transfer agent, the grafting of poly(hydroxyethyl methacrylate) (PHEMA) containing Thy (P(HEMA-Thy)) on CS is possible. The brush-like P(HEMA-Thy) leads Thy moieties to be in sequences. The Thy sequences perform as poly[T] for the specific interaction with ssDNA. The synergistic effect of CS and Thy sequences, i.e., electrostatic and base pairing interactions, results in an effective and efficient binding with ssDNA as well as significant delivery, especially in cellular uptake and cell viability. The use of CS in combination with Thy sequences in brush-like structures on CS is a model for other polysaccharides to be conjugated with the as-designed nucleic acid sequences for potential gene delivery.
Collapse
Affiliation(s)
- Sarunya Phunpee
- Bioresources to Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
| | - Suwabun Chirachanchai
- Bioresources to Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
| | - Uracha R Ruktanonchai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathumthani 12120, Thailand
| |
Collapse
|
8
|
McMullen A, Ehie D, Wyatt Q, Kim K, Sedaghat-Herati R. Exploring phosphonium and ammonium chitosan polymers and their PEGylated analogs for high performance gene delivery. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
9
|
Friedowitz S, Lou J, Barker KP, Will K, Xia Y, Qin J. Looping-in complexation and ion partitioning in nonstoichiometric polyelectrolyte mixtures. SCIENCE ADVANCES 2021; 7:eabg8654. [PMID: 34330707 PMCID: PMC8324053 DOI: 10.1126/sciadv.abg8654] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
A wide variety of intracellular membraneless compartments are formed via liquid-liquid phase separation of charged proteins and nucleic acids. Understanding the stability of these compartments, while accounting for the compositional heterogeneity intrinsic to cellular environments, poses a daunting challenge. We combined experimental and theoretical efforts to study the effects of nonstoichiometric mixing on coacervation behavior and accurately measured the concentrations of polyelectrolytes and small ions in the coacervate and supernatant phases. For synthetic polyacrylamides and polypeptides/DNA, with unequal mixing stoichiometry, we report a general "looping-in" phenomenon found around physiological salt concentrations, where the polymer concentrations in the coacervate initially increase with salt addition before subsequently decreasing. This looping-in behavior is captured by a molecular model that considers reversible ion binding and electrostatic interactions. Further analysis in the low-salt regime shows that the looping-in phenomenon originates from the translational entropy of counterions that are needed to neutralize nonstoichiometric coacervates.
Collapse
Affiliation(s)
- Sean Friedowitz
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Junzhe Lou
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | | | - Karis Will
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Yan Xia
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA.
| | - Jian Qin
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.
| |
Collapse
|
10
|
Stuart-Walker W, Mahon CS. Glycomacromolecules: Addressing challenges in drug delivery and therapeutic development. Adv Drug Deliv Rev 2021; 171:77-93. [PMID: 33539854 DOI: 10.1016/j.addr.2021.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/15/2021] [Accepted: 01/23/2021] [Indexed: 12/18/2022]
Abstract
Carbohydrate-based materials offer exciting opportunities for drug delivery. They present readily available, biocompatible components for the construction of macromolecular systems which can be loaded with cargo, and can enable targeting of a payload to particular cell types through carbohydrate recognition events established in biological systems. These systems can additionally be engineered to respond to environmental stimuli, enabling triggered release of payload, to encompass multiple modes of therapeutic action, or to simultaneously fulfil a secondary function such as enabling imaging of target tissue. Here, we will explore the use of glycomacromolecules to deliver therapeutic benefits to address key health challenges, and suggest future directions for development of next-generation systems.
Collapse
|
11
|
Li L, Xing R, Li J, Li P. Fabrication of guanidinylated chitosan nanoparticles loaded with bioactive factors for facilitating wound healing. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1817017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ling Li
- Hunan University of Science and Engineering, Yongzhou, China
| | - Ronge Xing
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Jinguo Li
- Shandong Wei Kang Biomedical Technology Co. Ltd., Linyi, China
| | - Pengcheng Li
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| |
Collapse
|
12
|
Jana P, Ghosh S, Sarkar K. Low molecular weight polyethyleneimine conjugated guar gum for targeted gene delivery to triple negative breast cancer. Int J Biol Macromol 2020; 161:1149-1160. [PMID: 32553957 DOI: 10.1016/j.ijbiomac.2020.06.090] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/03/2020] [Accepted: 06/10/2020] [Indexed: 12/13/2022]
Abstract
The study emphasized on the development of an efficient, receptor-targeted non-viral gene delivery vehicle for gene therapy of triple negative breast cancer (TNBC). Here, naturally abundant guar gum based non-viral carrier was developed through conjugating by low molecular weight polyethylenimine (LPEI) (GNP) using napthalic anhydride coupling agent and characterized them by FT-IR, 1H NMR, XRD and UV spectrophotometer. The carrier was found to be cytocompatible as revealed by MTT assay against MDA-MB-231 and HeLa cell lines and excellent blood compatibility till the concentration of 200 μg/ml. In addition to these, the carrier exhibited excellent gene binding capability and formed spherical shaped complexes. The carrier showed very high in vitro transfection efficiency in TNBC cell (MDA-MB-231) compared to lipofectamine 2000 (LF2k) which could be justified by its high buffering capacity. Therefore, GNP may be an attractive non-viral gene carrier for gene therapy of TNBC in future.
Collapse
Affiliation(s)
- Piyali Jana
- Gene Therapy and Tissue Engineering Lab, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India
| | - Santanu Ghosh
- Gene Therapy and Tissue Engineering Lab, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India
| | - Kishor Sarkar
- Gene Therapy and Tissue Engineering Lab, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India.
| |
Collapse
|
13
|
Cationic cross-linked polymers containing labile disulfide and boronic ester linkages for effective triple responsive DNA release. Colloids Surf B Biointerfaces 2020; 191:110988. [PMID: 32276213 DOI: 10.1016/j.colsurfb.2020.110988] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/02/2020] [Accepted: 03/22/2020] [Indexed: 01/21/2023]
Abstract
Disruption of DNA carriers triggered by intracellular bio-stimulants has been broadly considered as most convenient strategy for efficient DNA delivery. In this direction, we have designed and synthesized pH, redox and ATP responsive cationic cross-linked polymers (CLPs) having disulfide and reversible boronic ester linkages. These CLPs also contain folate groups that are known for their targeting capability towards cancer cells. Biophysical studies showed that these cationic CLPs exhibited more effective DNA condensation in comparison to cationic linear polymers resulting in the formation of nano-sized polyplexes with sufficient positive zeta potentials and good colloidal stability at neutral pH (∼7.4). More interestingly, the polyplexes prepared from these CLPs have the ability to selectively release complexed DNA under conditions similar to those prevalent in cancer cells such as acidic pH, ATP rich surroundings or presence of glutathione, as revealed by ethidium bromide exclusion assay, agarose gel electrophoresis, AFM measurements, etc. Therefore, these cross-linked polymers have high potential of being effective non-viral gene delivery vehicles.
Collapse
|
14
|
Ingle NP, Hexum JK, Reineke TM. Polyplexes Are Endocytosed by and Trafficked within Filopodia. Biomacromolecules 2020; 21:1379-1392. [PMID: 32118406 DOI: 10.1021/acs.biomac.9b01610] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The improvement of nonviral gene therapies relies to a large extent on understanding many fundamental physical and biological properties of these systems. This includes interactions of synthetic delivery systems with the cell and mechanisms of trafficking delivery vehicles, which remain poorly understood on both the extra- and intracellular levels. In this study, the mechanisms of cellular internalization and trafficking of polymer-based nanoparticle complexes consisting of polycations and nucleic acids, termed polyplexes, have been observed in detail at the cellular level. For the first time evidence has been obtained that filopodia, actin projections that radiate out from the surface of cells, serve as a route for the direct endocytosis of polyplexes. Confocal microscopy images demonstrated that filopodia on HeLa cells detect external polyplexes and extend into the extracellular milieu to internalize these particles. Polyplexes are observed to be internalized into membrane-bound vesicles (i.e., clathrin-coated pits and caveolae) directly within filopodial projections and are subsequently transported along actin to the main cell body for potential delivery of the nucleic acids to the nucleus. The kinetics and speed of polyplex trafficking have also been measured. The polyplex-loaded vesicles were also discovered to traffic between two cells within filopodial bridges. These findings provide novel insight into the early events of cellular contact with polyplexes through filopodial-based interactions in addition to endocytic vesicle trafficking-an important fundamental discovery to enable advancement of nonviral gene editing, nucleic acid therapies, and biomedical materials.
Collapse
Affiliation(s)
- Nilesh P Ingle
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Joseph K Hexum
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
15
|
Salameh JW, Zhou L, Ward SM, Santa Chalarca CF, Emrick T, Figueiredo ML. Polymer-mediated gene therapy: Recent advances and merging of delivery techniques. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1598. [PMID: 31793237 PMCID: PMC7676468 DOI: 10.1002/wnan.1598] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/02/2019] [Accepted: 09/19/2019] [Indexed: 01/01/2023]
Abstract
The ability to safely and precisely deliver genetic materials to target sites in complex biological environments is vital to the success of gene therapy. Numerous viral and nonviral vectors have been developed and evaluated for their safety and efficacy. This study will feature progress in synthetic polymers as nonviral vectors, which benefit from their chemical versatility, biocompatibility, and ability to carry both therapeutic cargo and targeting moieties. The combination of synthetic gene carrying constructs with advanced delivery techniques promises new therapeutic options for treating and curing genetic disorders. This article is characterized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Therapeutic Approaches and Drug Discovery > Emerging Technologies.
Collapse
Affiliation(s)
- Janelle W. Salameh
- The Weldon School of Biomedical Engineering and the
Interdisciplinary Biomedical Sciences Program, Purdue University, West Lafayette,
Indiana
| | - Le Zhou
- Polymer Science and Engineering Department, University of
Massachusetts, Amherst, Massachusetts
| | - Sarah M. Ward
- Polymer Science and Engineering Department, University of
Massachusetts, Amherst, Massachusetts
| | | | - Todd Emrick
- Polymer Science and Engineering Department, University of
Massachusetts, Amherst, Massachusetts
| | - Marxa L. Figueiredo
- Department of Basic Medical Sciences and the
Interdisciplinary Biomedical Sciences Program, Purdue University, West Lafayette,
Indiana
| |
Collapse
|
16
|
Faustova M, Nikolskaya E, Sokol M, Zabolotsky A, Mollaev M, Zhunina O, Fomicheva M, Lobanov A, Severin E, Yabbarov N. High-effective reactive oxygen species inducer based on Mn-tetraphenylporphyrin loaded PLGA nanoparticles in binary catalyst therapy. Free Radic Biol Med 2019; 143:522-533. [PMID: 31520768 DOI: 10.1016/j.freeradbiomed.2019.09.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/05/2019] [Accepted: 09/10/2019] [Indexed: 01/09/2023]
Abstract
The mechanisms of binary catalyst therapy (BCT) and photodynamic therapy (PDT) are based on the formation of reactive oxygen species (ROS). This ROS formation results from specific chemical reactions. In BCT, light exposure does not necessarily initiate ROS formation and BCT application is not limited to regions of tissues that are accessible to illumination like photodynamic therapy (PDT). The principle of BCT is electron transition, resulting in the interaction of a transition metal complex (catalyst) and substrate molecule. MnIII- tetraphenylporphyrin chloride (MnClTPP) in combination with an ascorbic acid (AA) has been proposed as an appropriate candidate for cancer treatment regarding the active agents in BCT. The goal of this study was to determine whether MnClTPP in combination with AA would be a promising agent for BCT. The problem of used MnClTPP's, low solubility in water, was solved by MnClTPP loading into PLGA matrix. H2O2 produced during AA decomposition oxidized MnClTPP to high-reactive oxo-MnV species. MnClTPP in presence AA leads to the production of excessive ROS levels in vitro. ROS are mainly substrates of catalase and superoxide dismutase (H2O2 and O2●-). SOD1 and catalase were identified as the key players of the MnClTPP ROS-induced cell defense system. The cytotoxicity of MnClTPP-loaded nanoparticles (NPs) was greatly increased in the presence of specific catalase inhibitor (3-amino-1,2,4-triazole (3AT)) and superoxide dismutase 1 (SOD1) inhibitor (diethyldithiocarbamate (DDC)). Cell death resulted from the combined activation of caspase-dependent (caspase 3/9 system) and independent pathways, namely the AIF translocation to nuclei. Preliminary acute toxicity and in vivo anticancer studies have been revealed the safe and potent anticancer effect of PLGA-entrapped MnClTPP in combination with AA. The findings indicate that MnClTPP-loaded PLGA NPs are promising agents for BCT.
Collapse
Affiliation(s)
- Maria Faustova
- MIREA, Russian Technological University, Lomonosov Institute of Fine Chemical Technologies, 119454, Moscow, Russia
| | | | - Maria Sokol
- JSC Russian Research Center for Molecular Diagnostics and Therapy, 117149, Moscow, Russia
| | | | - Murad Mollaev
- MIREA, Russian Technological University, Lomonosov Institute of Fine Chemical Technologies, 119454, Moscow, Russia
| | - Olga Zhunina
- Semenov Institute of Chemical Physics, 119991, Moscow, Russia
| | - Margarita Fomicheva
- JSC Russian Research Center for Molecular Diagnostics and Therapy, 117149, Moscow, Russia
| | - Anton Lobanov
- Semenov Institute of Chemical Physics, 119991, Moscow, Russia
| | - Evgeniy Severin
- JSC Russian Research Center for Molecular Diagnostics and Therapy, 117149, Moscow, Russia
| | - Nikita Yabbarov
- Semenov Institute of Chemical Physics, 119991, Moscow, Russia.
| |
Collapse
|
17
|
Xing H, Cheng L, Lu M, Liu H, Lang L, Yang T, Zhao X, Xu H, Yang L, Ding P. A biodegradable poly(amido amine) based on the antimicrobial polymer polyhexamethylene biguanide for efficient and safe gene delivery. Colloids Surf B Biointerfaces 2019; 182:110355. [DOI: 10.1016/j.colsurfb.2019.110355] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/05/2019] [Accepted: 07/07/2019] [Indexed: 01/16/2023]
|
18
|
Sakuta R, Nakamura N. Production of Hexaric Acids from Biomass. Int J Mol Sci 2019; 20:E3660. [PMID: 31357431 PMCID: PMC6695620 DOI: 10.3390/ijms20153660] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 07/22/2019] [Accepted: 07/24/2019] [Indexed: 12/15/2022] Open
Abstract
Sugar acids obtained by aldohexose oxidation of both the terminal aldehyde group and the hydroxy group at the other end to carboxyl groups are called hexaric acids (i.e., six-carbon aldaric acids). Because hexaric acids have four secondary hydroxy groups that are stereochemically diverse and two carboxyl groups, various applications of these acids have been studied. Conventionally, hexaric acids have been produced mainly by nitric acid oxidation of aldohexose, but full-scale commercialization has not been realized; there are many problems regarding yield, safety, environmental burden, etc. In recent years, therefore, improvements in hexaric acid production by nitric acid oxidation have been made, while new production methods, including biocatalytic methods, are actively being studied. In this paper, we summarize these production methods in addition to research on the application of hexaric acids.
Collapse
Affiliation(s)
- Riku Sakuta
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Nobuhumi Nakamura
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| |
Collapse
|
19
|
One-Step Formation of Chondrocytes through Direct Reprogramming via Polysaccharide-Based Gene Delivery. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/7632873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
An innovative strategy for the generation of chondrocytes was thoroughly studied in this paper. Polyetherimide-modified polysaccharides of Porphyra yezoensis (pmPPY) served as a nonviral gene vector and delivered Sox9 plasmid to directly reprogram mouse embryonic fibroblasts into chondrocytes. The gene transfer efficiency was evaluated through ELISA, RT-PCR, and Western blot. The induced chondrocytes were identified through toluidine blue, Safranin O, and the immunostaining. The expression level of collagen II was finally evaluated through western blot. The pSox9/pmPPY nanoparticles (1:50) showed lower cytotoxicity as well as greater gene transfection efficiency than Lipofectamine 2000 and polyetherimide (PEI) (p<0.05). The results of toluidine blue, Safranin O, and the immunostaining of collagen II further showed that the normal MEFs were successfully reprogrammed into chondrocytes. These findings indicate that pmPPY could be a promising gene vector for the generation of chondrocytes via single-gene delivery strategy, which might provide abundant chondrocytes for cartilage repair.
Collapse
|
20
|
Van Bruggen C, Hexum JK, Tan Z, Dalal RJ, Reineke TM. Nonviral Gene Delivery with Cationic Glycopolymers. Acc Chem Res 2019; 52:1347-1358. [PMID: 30993967 DOI: 10.1021/acs.accounts.8b00665] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The field of gene therapy, which aims to treat patients by modulating gene expression, has come to fruition and has landed several landmark FDA approvals. Most gene therapies currently rely on viral vectors to deliver nucleic acid cargo into cells, but there is significant interest in moving toward chemical-based methods, such as polymer-based vectors, due to their low cost, immunocompatibility, and tunability. The full potential of polymer-based delivery systems has yet to be realized, however, because most polymeric transfection reagents are either too inefficient or too toxic for use in the clinic. In this Account, we describe developments in carbohydrate-based cationic polymers, termed glycopolymers, for enhanced nonviral gene delivery. As ubiquitous components of biological systems, carbohydrates are a rich class of compounds that can be harnessed to improve the biocompatibility of non-native polymers, such as linear polyamines used for promoting transfection. Reineke et al. developed a new class of carbohydrate-based polymers called poly(glycoamidoamine)s (PGAAs) by step-growth polymerization of linear monosaccharides with linear ethyleneamines. These glycopolymers were shown to be both efficient and biocompatible transfection reagents. Systematic modifications of the structural components of the PGAA system revealed structure-activity relationships important to its function, including its ability to degrade in situ. Expanding upon the development of step-growth glycopolymers, monosaccharides, such as glucose, were functionalized as vinyl-based monomers for the formation of diblock copolymers via radical addition-fragmentation chain-transfer (RAFT) polymerization. Upon complexation with plasmid DNA, the glucose-containing block creates a hydrophilic shell that promotes colloidal stability as effectively as PEG functionalization. An N-acetyl-d-galactosamine variant of this diblock polymer yields colloidally stable particles that show increased receptor-mediated uptake by liver hepatocytes in vitro and promotes liver targeting in mice. Finally, the disaccharide trehalose was incorporated into polycationic structures using both step-growth and RAFT techniques. It was shown that these trehalose-based copolymers imparted increased colloidal stability and yielded plasmid and siRNA polyplexes that resist aggregation upon lyophilization and reconstitution in water. The aforementioned series of glycopolymers use carbohydrates to promote effective and safe delivery of nucleic acid cargo into a variety of human cells types by promoting vehicle degradation, tissue-targeting, colloidal stabilization, and stability toward lyophilization to extend shelf life. Work is currently underway to translate the use of glycopolymers for safe and efficient delivery of nucleic acid cargo for gene therapy and gene editing applications.
Collapse
Affiliation(s)
- Craig Van Bruggen
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Joseph K. Hexum
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Zhe Tan
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Rishad J. Dalal
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Theresa M. Reineke
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
21
|
Molina-Pinilla I, Hakkou K, Romero-Azogil L, Benito E, García-Martín MG, Bueno-Martínez M. Synthesis of degradable linear cationic poly(amide triazole)s with DNA-condensation capability. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
22
|
Zhou X, Zhang Q, Chen L, Nie W, Wang W, Wang H, Mo X, He C. Versatile Nanocarrier Based on Functionalized Mesoporous Silica Nanoparticles to Codeliver Osteogenic Gene and Drug for Enhanced Osteodifferentiation. ACS Biomater Sci Eng 2019; 5:710-723. [PMID: 33405833 DOI: 10.1021/acsbiomaterials.8b01110] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
To achieve enhanced stimulatory effects on the osteogenic differentiation of stem cells, the combination of dual factors with synergistic bioactivity has been regarded as the most effective and powerful strategy. In this study, polylysine-modified polyethylenimine (PEI-PLL) copolymers with various molecular weight PEI blocks were first synthesized and evaluated focusing on their cytotoxicity and gene transfection efficiency, and the results demonstrated that the synthesized copolymer PEI-PLL-25k (synthesized using 25 kDa PEI) exhibited lower cytotoxicity and higher in vitro transfection efficiency than commercial PEI-25k (Mw = 25 kDa). In order to effectively load and deliver plasmid DNA and osteogenic drug dexamethasone (DEX), PEI-PLL-25k copolymer and arginine-glycine-aspartate (RGD) peptide were successively anchored onto the surface of mesoporous silica nanoparticles (MSNs) to construct the dual-factor delivery system, which allows the surface adsorption of DNA and DEX loading in the mesopores of MSNs. The modification of PEI-PLL-25k copolymer and RGD on nanoparticles was successfully characterized by various techniques. The functionalized MSNs with RGD conjugation on the surface showed good cytocompatibility as evidenced by in vitro cell viability assays and cytoskeleton observation. The dual-factor delivery system could quickly release plasmid DNA (pDNA), while releasing DEX in a sustained manner. When cultured with the vector bearing bone morphogenetic protein-2 (BMP-2) pDNA, the transfected bone mesenchymal stem cells (BMSCs) were capable of expressing BMP-2 protein. With the simultaneous delivery of DEX and the BMP-2 gene, this dual-factor delivery system could significantly enhance the level of osteogenic differentiation of BMSCs, as demonstrated by in vitro results of alkaline phosphatase (ALP) activity, expression of osteo-related genes, and calcium deposition. Therefore, the versatile functionalized MSNs nanocarrier for codelivery of osteogenic gene and drug may be considered as a promising dual-delivery system to synergistically enhance the osteogenic outcomes of stem cells.
Collapse
Affiliation(s)
- Xiaojun Zhou
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Qianqian Zhang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Liang Chen
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Wei Nie
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Weizhong Wang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Hongsheng Wang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Xiumei Mo
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Chuanglong He
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| |
Collapse
|
23
|
Yu QY, Guo Y, Zhang J, Huang Z, Yu XQ. Zn(ii) coordination to cyclen-based polycations for enhanced gene delivery. J Mater Chem B 2019; 7:451-459. [DOI: 10.1039/c8tb02414f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Zn2+ coordination greatly improved the gene transfection efficiency of cyclen-based polycations.
Collapse
Affiliation(s)
- Qing-Ying Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Yu Guo
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Zheng Huang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| |
Collapse
|
24
|
Nie X, Zhang Z, Wang CH, Fan YS, Meng QY, You YZ. Interactions in DNA Condensation: An Important Factor for Improving the Efficacy of Gene Transfection. Bioconjug Chem 2018; 30:284-292. [DOI: 10.1021/acs.bioconjchem.8b00805] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xuan Nie
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Ze Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | | | | | | | - Ye-Zi You
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| |
Collapse
|
25
|
Xiao B, Chen Q, Zhang Z, Wang L, Kang Y, Denning T, Merlin D. TNFα gene silencing mediated by orally targeted nanoparticles combined with interleukin-22 for synergistic combination therapy of ulcerative colitis. J Control Release 2018; 287:235-246. [PMID: 30107214 PMCID: PMC6482469 DOI: 10.1016/j.jconrel.2018.08.021] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 08/11/2018] [Indexed: 02/07/2023]
Abstract
Pro-resolving factors that are critical for colonic epithelial restitution were down-regulated during the treatment with inhibitor of pro-inflammatory cytokines (e.g., anti-TNFα antibody) in ulcerative colitis (UC) therapy. We hypothesized that increased amounts of factors such as interleukin-22 (IL-22) during the therapeutic inhibition of TNFα could facilitate the resolution of intestinal inflammation. As combination therapy is an emerging strategy for UC treatment, we attempt to treat established UC based on the combination of TNFα siRNA (siTNF) and IL-22. Initially, we loaded siTNF into galactosylated polymeric nanoparticles (NPs). The resultant Gal-siTNF-NPs had a desirable average diameter (~261 nm), a narrow size distribution and a slightly negative surface charge (~-6 mV). These NPs successfully mediated the targeted delivery of siTNF to macrophages and efficiently inhibited the expression of TNFα. Meanwhile, IL-22 could obviously accelerate mucosal healing. More importantly, oral administration of Gal-siTNF-NPs plus IL-22 embedded in a hydrogel (chitosan/alginate) showed much stronger capacities to down-regulate the expression of pro-inflammatory factors and promote mucosal healing. This formulation also yielded a much better therapeutic efficacy against UC in a mouse model compared to hydrogel loaded with Gal-siTNF-NPs or IL-22 alone. Our results strongly demonstrate that Gal-siTNF-NP/IL-22-embedded hydrogel can target to inflamed colon, and co-deliver siTNF and IL-22 to boost the effects of either monotherapy, which may become a promising oral drug formulation and enable targeted combination therapy of UC.
Collapse
Affiliation(s)
- Bo Xiao
- Institute for Clean Energy and Advanced Materials, Faculty for Materials and Energy, Southwest University, Beibei, Chongqing 400715, PR China; Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Digestive Disease Research Group, Georgia State University, Atlanta, GA 30302, USA.
| | - Qiubing Chen
- Institute for Clean Energy and Advanced Materials, Faculty for Materials and Energy, Southwest University, Beibei, Chongqing 400715, PR China
| | - Zhan Zhang
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Digestive Disease Research Group, Georgia State University, Atlanta, GA 30302, USA
| | - Lixin Wang
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Digestive Disease Research Group, Georgia State University, Atlanta, GA 30302, USA; Atlanta Veterans Affairs Medical Center, Decatur, GA 30033, USA
| | - Yuejun Kang
- Institute for Clean Energy and Advanced Materials, Faculty for Materials and Energy, Southwest University, Beibei, Chongqing 400715, PR China
| | - Timothy Denning
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Digestive Disease Research Group, Georgia State University, Atlanta, GA 30302, USA
| | - Didier Merlin
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Digestive Disease Research Group, Georgia State University, Atlanta, GA 30302, USA; Atlanta Veterans Affairs Medical Center, Decatur, GA 30033, USA
| |
Collapse
|
26
|
Ailincai D, Peptanariu D, Pinteala M, Marin L. Dynamic constitutional chemistry towards efficient nonviral vectors. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:635-646. [PMID: 30423749 DOI: 10.1016/j.msec.2018.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 09/11/2018] [Accepted: 10/01/2018] [Indexed: 10/28/2022]
Abstract
Dynamic constitutional chemistry has been used to design nonviral vectors for gene transfection. Their design has been thought in order to fulfill ab initio the main requirements for gene therapy. As building blocks were used hyperbranched PEI as hydrophilic part and benzentrialdehyde and a diamine linear siloxane as hydrophobic part, connected through reversible imine linkages. The obtaining of the envisaged structures has been confirmed by NMR and FTIR spectroscopy. The dynamic synthesized amphiphiles proved to be able to self-assemble in nano-sized spherical entities as was demonstrated by TEM and DLS, characterized by a narrow dimensional polydispersity. Agarose gel electrophoresis proved the ability of the synthesized compounds to bind DNA, while TEM revealed the spherical morphology of the formed polyplexes. As a proof of the concept, the nonviral vectors promoted an efficient transfection on HeLa cells, demonstrating that dynamic constitutional chemistry can be an important tool in the development of this domain.
Collapse
Affiliation(s)
- Daniela Ailincai
- Petru Poni Institute of Macromolecular Chemistry, Iasi, Romania.
| | | | | | - Luminita Marin
- Petru Poni Institute of Macromolecular Chemistry, Iasi, Romania
| |
Collapse
|
27
|
Tan J, Wang X, Yu Z, Luo J, Lan B, Li N, Xin Y, Zeng C, Yan L, Zhang LM, Chen X, Guan S, Li W, Yang L. Spectroscopic investigation of a hyperbranched cationic amylopectin derivative as a multi-guest molecular host for targeted delivery of a photosensitizer to pancreatic cancer cells. Carbohydr Polym 2018; 197:38-46. [DOI: 10.1016/j.carbpol.2018.05.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/14/2018] [Accepted: 05/16/2018] [Indexed: 12/20/2022]
|
28
|
Lin GQ, Yi WJ, Liu Q, Yang XJ, Zhao ZG. Aromatic Thioacetal-Bridged ROS-Responsive Nanoparticles as Novel Gene Delivery Vehicles. Molecules 2018; 23:E2061. [PMID: 30126108 PMCID: PMC6225261 DOI: 10.3390/molecules23082061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/10/2018] [Accepted: 08/11/2018] [Indexed: 01/08/2023] Open
Abstract
In this report, a series of polycations are designed and synthesized by conjugating reactive oxygen species (ROS)-responsive thioacetal-linkers to low molecular weight (LMW) polyethylenimine (PEI) via ring-opening polymerization. Their structure⁻activity relationships (SARs) as gene delivery vectors are systematically studied. Although the MWs of the target polymers are only ~9 KDa, they show good DNA binding ability. The formed polyplexes, which are stable toward serum but decomposed under ROS-conditions, have appropriate sizes (180~300 nm) and positive zeta-potentials (+35~50 mV). In vitro experiments reveal that these materials have low cytotoxicity, and higher transfection efficiency (TE) than controls. Furthermore, the title polymers exhibit excellent serum tolerance. With the present of 10% serum, the TE of the polymers even increases up to 10 times higher than 25 KDa PEI and 9 times higher than Lipofectamine 2000. The SAR studies also reveal that electron-withdrawing groups on the aromatic ring in 4a may benefit to balance between the DNA condensation and release for efficient gene transfection.
Collapse
Affiliation(s)
- Guo-Qing Lin
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Wen-Jing Yi
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Qiang Liu
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Xue-Jun Yang
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Zhi-Gang Zhao
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| |
Collapse
|
29
|
Garg P, Pandey S, Hoon S, Jang KJ, Lee MC, Choung YH, Choung PH, Chung JH. JNK2 silencing and caspase-9 activation by hyperosmotic polymer inhibits tumor progression. Int J Biol Macromol 2018; 120:2215-2224. [PMID: 30003914 DOI: 10.1016/j.ijbiomac.2018.07.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/04/2018] [Accepted: 07/06/2018] [Indexed: 11/17/2022]
Abstract
c-Jun N-terminal kinase 2 (JNK2) is primarily responsible for the oncogenic transformation of the transcription factor c-Jun. Expression of the proto-oncogene c-Jun progresses the cell cycle from G1 to S phase, but when its expression becomes awry it leads to uncontrolled proliferation and angiogenesis. Delivering a JNK2 siRNA (siJNK2) in tumor tissue was anticipated to reverse the condition with subsequent onset of apoptosis which predominantly requires an efficient delivering system capable of penetrating through the compact tumor mass. In the present study, it was demonstrated that polymannitol-based vector (PMGT) with inherent hyperosmotic properties was able to penetrate through and deliver the siJNK2 in the subcutaneous tumor of xenograft mice. Hyperosmotic activity of polymannitol was shown to account for the enhanced therapeutic delivery both in vitro and in vivo because of the induction of cyclooxygenase-2 (COX-2) which stimulates caveolin-1 for caveolae-mediated endocytosis of the polyplexes. Further suppression of JNK2 and hence c-Jun expression led to the activation of caspase-9 to induce apoptosis and inhibition of tumor growth in xenograft mice model. The study exemplifies PMGT as an efficient vector for delivering therapeutic molecules in compact tumor tissue and suppression of JNK2 introduces a strategy to inhibit tumor progression.
Collapse
Affiliation(s)
- Pankaj Garg
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
| | - Shambhavi Pandey
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
| | - Seonwoo Hoon
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
| | - Kyoung-Je Jang
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
| | - Myung Chul Lee
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
| | - Yun-Hoon Choung
- Department of Otalaryngology, Ajou University School of Medicine, Suwon 443-749, Republic of Korea
| | - Pill-Hoon Choung
- Department of Oral and Maxillofacial Surgery and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 110-774, Republic of Korea.
| | - Jong Hoon Chung
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea; Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea.
| |
Collapse
|
30
|
Ahmad N, Alam MA, Ahmad R, Umar S, Jalees Ahmad F. RETRACTED ARTICLE: Improvement of oral efficacy of Irinotecan through biodegradable polymeric nanoparticles through in vitro and in vivo investigations. J Microencapsul 2018; 35:327-343. [DOI: 10.1080/02652048.2018.1485755] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Niyaz Ahmad
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Md Aftab Alam
- Department of Pharmaceutics, School of Medical and Allied Sciences, Galgotias University, Greater Noida, India
| | - Rizwan Ahmad
- Department of Natural Products and Alternative Medicine College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Sadiq Umar
- Division of Rheumatology, Department of Medicine, University of Illinois, Chicago, IL, USA
| | - Farhan Jalees Ahmad
- Nanomedicine Lab, Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| |
Collapse
|
31
|
Guo Z, Zhou X, Xu M, Tian H, Chen X, Chen M. Dimeric camptothecin-loaded RGD-modified targeted cationic polypeptide-based micelles with high drug loading capacity and redox-responsive drug release capability. Biomater Sci 2018; 5:2501-2510. [PMID: 29119997 DOI: 10.1039/c7bm00791d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Camptothecin (CPT) is a broad spectrum anticancer drug, but its application is limited due to the poor water solubility, lactone ring instability, and low drug loading potential. In this study, biocompatible cationic polypeptide-based micelles were developed to deliver dimeric CPT (DCPT) with the aim of overcoming the above-mentioned obstacles and achieving favorable therapeutic effects. Cationic polypeptide poly-lysine-block-poly-leucine (PLys-b-PLeu) was fabricated via the ring-opening polymerization of N-ε-carbobenzoxy-l-lysine (ε-Lys(Z)) and l-leucine (Leu) and further grafted with polyethylene glycol (PEG) and an arginine-glycine-aspartic acid (RGD) peptide. DCPT was synthesized by reacting CPT and 2-hydroxyethyl disulfide, and micelles were prepared using a dialysis method. The obtained DCPT-loaded RGD-PEG-g-poly-l-lysine-b-poly-l-leucine (DRPPP) micelles showed a high encapsulation efficiency of 89.7% and a high drug loading capacity of 46.1%. In addition, the DRPPP micelles remained stable under physiological conditions (PBS at a pH of 7.4) but showed rapid release when triggered by a reductive environment (PBS at a pH of 7.4 with 10 mM dithiothreitol). Compared to micelles without RGD decoration, the DRPPP micelles exhibited an increased cellular uptake through RGD targeting and were internalized into cells via caveolae-mediated endocytosis and macropinocytosis. Furthermore, the DRPPP micelles exerted an enhanced cytotoxicity against MDA-MB-231 cells compared to MCF-7 cells, which expressed less αvβ3 receptors. Besides, the DRPPP micelles induced cell apoptosis and caused a decrease of mitochondrial membrane potential. These results indicate that dimeric camptothecin-loaded cationic polypeptide-based micelle is a promising strategy for cancer therapy.
Collapse
Affiliation(s)
- Zhaopei Guo
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
| | | | | | | | | | | |
Collapse
|
32
|
Wu D, Zhang Y, Xu X, Guo T, Xie D, Zhu R, Chen S, Ramakrishna S, He L. RGD/TAT-functionalized chitosan-graft-PEI-PEG gene nanovector for sustained delivery of NT-3 for potential application in neural regeneration. Acta Biomater 2018; 72:266-277. [PMID: 29578088 DOI: 10.1016/j.actbio.2018.03.030] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/11/2018] [Accepted: 03/15/2018] [Indexed: 11/18/2022]
Abstract
In this study, we prepared a multifunctional gene delivery nanovector containing a chitosan (CS) backbone and polyethylenimine (PEI) arms with arginine-glycine-aspartate (RGD)/twin-arginine translocation (TAT) conjugated via polyethylene glycol (PEG). Branched PEI, with a molecular weight of 2000 Da, was used to achieve a balance between biocompatibility and transfection efficiency, whereas RGD/TAT peptides were conjugated for enhanced targeting ability and cellular uptake. Synthesis of the copolymers was confirmed by characterizing the chemical structure with 1H nuclear magnetic resonance and Fourier Transform Infrared Spectroscopy (FTIR). The nanovector was biocompatible with cells and showed excellent capability for DNA condensation; the resulting complexes with DNA were well-formed, and possessed small particle size and reasonable positive charge. Higher gene transfection efficiency, compared to that achieved with PEI (25 kDa), was confirmed in tumor (HeLa cells) and normal cells (293T and NIH 3T3 cells). More importantly, the cells transfected with the chitosan-graft-PEI-PEG/pCMV-EGFP-Ntf3 complex produced sustained neurotrophin-3 with a linear increase in cumulative concentration, which induced neuronal differentiation of neural stem cell and promoted neurite outgrowth. These findings suggested that our multifunctional copolymers might be ideal nanovectors for engineering cells via gene transfection, and could potentially be applied in tumor therapy and regenerative medicine. STATEMENT OF SIGNIFICANCE We successfully prepared a multifunctional gene delivery nanovector containing branched PEI with a molecular weight of 2000 Da to balance between biocompatibility and transfection efficiency, and RGD/TAT peptides for enhanced targeting ability and cellular uptake. The well-formed CPPP/DNA complexes of small particle size and reasonable positive charges potentially enhanced gene transfection in both tumor and normal cells. More importantly, the CPPP/pCMV-EGFP-Ntf3 complex-transfected 293T cells could produce sustained NT-3 with a constant ratio, which induced neuron differentiation of NSC and promoted neurite outgrowth. Therefore, our study provided an effective strategy for producing neurotrophins by engineering cells with gene delivery, which deserved wide investigation and potential application in regenerative medicine.
Collapse
Affiliation(s)
- Dongni Wu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China; MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Yongnu Zhang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China; MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Xiaoting Xu
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China; Guangdong-Hong Kong-Macau Institute of CNS Regeneration (GHMICR), Jinan University, Guangzhou 510632, China
| | - Ting Guo
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China; Guangdong-Hong Kong-Macau Institute of CNS Regeneration (GHMICR), Jinan University, Guangzhou 510632, China
| | - Deming Xie
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Rong Zhu
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China; Guangdong-Hong Kong-Macau Institute of CNS Regeneration (GHMICR), Jinan University, Guangzhou 510632, China
| | - Shengfeng Chen
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China; Guangdong-Hong Kong-Macau Institute of CNS Regeneration (GHMICR), Jinan University, Guangzhou 510632, China
| | - Seeram Ramakrishna
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China; Guangdong-Hong Kong-Macau Institute of CNS Regeneration (GHMICR), Jinan University, Guangzhou 510632, China; Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Liumin He
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China; MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China.
| |
Collapse
|
33
|
Nam JP, Kim S, Kim SW. Design of PEI-conjugated bio-reducible polymer for efficient gene delivery. Int J Pharm 2018; 545:295-305. [PMID: 29698820 DOI: 10.1016/j.ijpharm.2018.04.051] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/20/2018] [Accepted: 04/22/2018] [Indexed: 12/22/2022]
Abstract
The poly(cystaminebis(acrylamide)-diaminohexane) (poly(CBA-DAH)) was designed previously as a bio-reducible efficient gene delivery carrier. However, the high weight ratio required to form the polyplexes between poly(CBA-DAH) with pDNA is still a problem that needs to be addressed. To solve this problem and increase the transfection efficiency, poly(ethylenimine) (PEI, 1.8 kDa) was conjugated to poly(CBA-DAH) via disulfide bond. The PEI conjugated poly(CBA-DAH) (PCDP) can bind with pDNA at a very low weight ratio of 0.5 and above, like PEI 25 kDa, and form the polyplexes with nano-size (102-128 nm) and positive surface charge (27-34 mV). PCDP and PCDP polyplexes had negligible cytotoxicity and indicated similar or better cellular uptake than the comparison groups such as PEI 25 kDa and Lipofectamine® polyplexes. To confirm the transfection efficiency, the plasmid DNA (pDNA) encoded with the luciferase reporter gene (gWiz-Luc) and green fluorescent protein reporter gene (GFP) were used and treated with PCDP into the A549, Huh-7, and Mia PaCa-2 cells. PCDP/pDNA polyplexes showed highest transfection efficiency in all tested cell lines. In the luciferase assay, PCDP polyplexes showed 10.2 times higher gene transfection efficiency than Lipofectamine® polyplexes in mimic in vivo conditions (30% FBS, A549 cells). The VEGF siRNA expressing plasmid (pshVEGF), which is constructed as a therapeutic gene by our previous work, was delivered by PCDP into the cancer cells. The VEGF gene expression of PCDP/pshVEGF polyplexes was dramatically lower than control and the VEGF gene silencing efficiencies of PCDP/pshVEGF (w/w; 10/1) polyplexes were 54% (A549 cells), 77% (Huh-7 cells), and 66% (Mia PaCa-2 cells). In addition, PCDP/pshVEGF had reduced cell viability rates of about 31% (A549 cells), 39% (Huh-7 cells), and 42% (Mia PaCa-2 cells) and showed better results than all comparison groups. In the transfection efficiency and VEGF silencing assay, PCDP polyplexes showed better results than poly(CBA-DAH) at 4-fold lower weight ratio. The data of all experiments demonstrate that the synthesized PCDP could be used for efficient gene delivery and could be widely applied.
Collapse
Affiliation(s)
- Joung-Pyo Nam
- Center for Controlled Chemical Delivery (CCCD), Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, United States
| | - Soyoung Kim
- Center for Controlled Chemical Delivery (CCCD), Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, United States
| | - Sung Wan Kim
- Center for Controlled Chemical Delivery (CCCD), Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, United States.
| |
Collapse
|
34
|
Huang Z, Zhao DM, Deng X, Zhang J, Zhang YM, Yu XQ. Functionalized Asymmetric Bola-Type Amphiphiles for Efficient Gene and Drug Delivery. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E115. [PMID: 29462991 PMCID: PMC5853746 DOI: 10.3390/nano8020115] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/09/2018] [Accepted: 02/11/2018] [Indexed: 01/05/2023]
Abstract
The studies of bolaamphiphile-based nanoparticles as delivery vectors are still rudimentary and under development. In this study, several asymmetric bolaamphiphiles containing lysine and another moiety with special functions, such as pH-sensitive or cell-targeting property, were designed and synthesized. The potentials of these bolaamphiphile-based nanoparticles as versatile vectors for both nucleic acids and chemical drugs were studied. With the presence of 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE), these amphiphiles could be prepared into bolasomes, which showed good DNA binding ability and could condense plasmid DNA into nanoparticles with appropriate size and surface potential. Lys-His, which has a pH-sensitive histidine on one head, exhibited higher transfection efficiency than the symmetric counterpart and comparable efficiency to commercially available transfection reagent. Mechanism studies confirmed that the bolaplexes formed from Lys-His might induce the highest cellular uptake and the best endosomal escape ability. On the other hand, these bolaamphiphiles also exhibited good drug loading ability. The self-assembly vesicles could efficiently encapsulate the hydrophobic anti-cancer drug doxorubicin (DOX) in aqueous solution with high drug loading content and encapsulation efficiency. Confocal laser scanning microscopy (CLSM) experiment and cell viability assay exhibited a controlled release of the drug with the assistance of bolasomes. It was shown that such bolaamphiphiles have great potential as nano-vectors for both drug and gene or their co-delivery.
Collapse
Affiliation(s)
- Zheng Huang
- Key Laboratory of Green Chemistry & Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Dong-Mei Zhao
- Key Laboratory of Green Chemistry & Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xuan Deng
- Key Laboratory of Green Chemistry & Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Ji Zhang
- Key Laboratory of Green Chemistry & Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Yi-Mei Zhang
- Key Laboratory of Green Chemistry & Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry & Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China.
| |
Collapse
|
35
|
Targeted delivery of SNX-2112 by polysaccharide-modified graphene oxide nanocomposites for treatment of lung cancer. Carbohydr Polym 2018; 185:85-95. [PMID: 29421063 DOI: 10.1016/j.carbpol.2018.01.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 12/15/2017] [Accepted: 01/04/2018] [Indexed: 12/18/2022]
Abstract
Graphene oxide (GO) is a promising material for biomedical applications, particularly in drug delivery, due to its exceptional chemical and physical properties. In this work, an innovative GO-based carrier was developed by modifying GO with chitosan (CHI) to improve the biocompatibility, and followed by the conjugation of hyaluronic acid (HA), the target ligand for CD44, to realize the specific recognition of tumor cells and improve the efficiency of anti-tumor drug delivery. The resulting product GO-CHI-HA was loaded with an anti-cancer drug SNX-2112, which is the Hsp90 inhibitor. The total release amount and release rate of SNX-2112 were significantly higher in acidic condition than in physiological condition. GO-CHI-HA with a low concentration had little impact on the lysis of red blood cells (RBCs) and blood coagulation and showed low toxicity in A549 cells and NHBE cells. The GO-CHI-HA/SNX-2112 proved to be effective in inhibiting and killing A549 cells while having lower cytotoxicity against normal human bronchial epithelial cells (NHBE cells). Furthermore, in vivo toxicity of the materials towards vital organs in SD rats were also studied through histological examinations and blood property analyses, the results of which showed that although inflammatory response was developed in the short-term, GO-CHI-HA/SNX-2112 caused no severe long-term injury. Therefore, this drug delivery system showed great potential as an effective and safe drug delivery system with little adverse side effects for cancer therapy.
Collapse
|
36
|
Guo Z, Lin L, Chen J, Zhou X, Chan HF, Chen X, Tian H, Chen M. Poly(ethylene glycol)-poly-l-glutamate complexed with polyethyleneimine−polyglycine for highly efficient gene delivery in vitro and in vivo. Biomater Sci 2018; 6:3053-3062. [DOI: 10.1039/c8bm00503f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The highly efficient gene delivery system with effective serum resistant capacity is promising for cancer therapy.
Collapse
Affiliation(s)
- Zhaopei Guo
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
| | - Lin Lin
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Jie Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xingzhi Zhou
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine
- School of Biomedical Science
- The Chinese University of Hong Kong
- Hong Kong
- China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
| |
Collapse
|
37
|
Luo TY, He X, Zhang J, Chen P, Liu YH, Wang HJ, Yu XQ. Photoluminescent F-doped carbon dots prepared by ring-opening reaction for gene delivery and cell imaging. RSC Adv 2018; 8:6053-6062. [PMID: 35539571 PMCID: PMC9078219 DOI: 10.1039/c7ra13607b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 01/31/2018] [Indexed: 01/16/2023] Open
Abstract
Carbon dots (CDs) are photoluminescent nanoparticles with distinctive properties, having great potential in nano-biomaterial systems such as gene/drug delivery vectors and cell imaging agents.
Collapse
Affiliation(s)
- Tian-Ying Luo
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xi He
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Ping Chen
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Hai-Jiao Wang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| |
Collapse
|
38
|
Yu Q, Chen J, Deng W, Cao X, Adu-Frimpong M, Yu J, Xu X. Neural differentiation of fibroblasts induced by intracellular co-delivery of Ascl1, Brn2 and FoxA1 via a non-viral vector of cationic polysaccharide. Biomed Mater 2017; 13:015022. [DOI: 10.1088/1748-605x/aa8962] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
39
|
Liau WT, Kasko AM. Poly(methyl 6-acryloyl-β-d-glucosaminoside) as a Cationic Glycomimetic of Chitosan. Biomacromolecules 2017; 18:4133-4140. [DOI: 10.1021/acs.biomac.7b01191] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Walter T. Liau
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Room 5121, Engineering
V, P.O. Box 951600, Los Angeles, California 90095-1600, United States
| | - Andrea M. Kasko
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Room 5121, Engineering
V, P.O. Box 951600, Los Angeles, California 90095-1600, United States
| |
Collapse
|
40
|
Ni S, Liu Y, Tang Y, Chen J, Li S, Pu J, Han L. GABA B receptor ligand-directed trimethyl chitosan/tripolyphosphate nanoparticles and their pMDI formulation for survivin siRNA pulmonary delivery. Carbohydr Polym 2017; 179:135-144. [PMID: 29111036 DOI: 10.1016/j.carbpol.2017.09.075] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/08/2017] [Accepted: 09/23/2017] [Indexed: 11/25/2022]
Abstract
The effect of gene silencing by survivin siRNA (siSurvivin) on the proliferation and apoptosis of lung tumor has been attracted more interest. GABAB receptor ligand-directed nanoparticles consisting of baclofen functionalized trimethyl chitosan (Bac-TMC) as polymeric carriers, tripolyphosphate (TPP) as ionic crosslinker, and siSurvivin as therapeutic genes, were designed to enhance the survivin gene silencing. GABAB receptor agonist baclofen (Bac) was initially introduced into TMC as a novel ligand. This Bac-TMC/TPP nanoparticles increased the uptake of survivin siRNA through the interaction with GABAB receptor, further resulted in efficient cell apoptosis and gene silencing. For siRNA-loaded nanoparticles pulmonary delivery, mannitol was utilized for it delivery into pressurized metered dose inhalers (pMDI). The fine particle fractions of this formulation was (45.39±2.99)% indicating the appropriate deep lung deposition. These results revealed that this pMDI formulation containing Bac-TMC/TPP nanoparticles would be a promising siRNA delivery system for lung cancer treatment.
Collapse
Affiliation(s)
- Suhui Ni
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yun Liu
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yue Tang
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Jing Chen
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Shuhan Li
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Ji Pu
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Lidong Han
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| |
Collapse
|
41
|
Slavko E, Taylor MS. Catalyst-controlled polycondensation of glycerol with diacyl chlorides: linear polyesters from a trifunctional monomer. Chem Sci 2017; 8:7106-7111. [PMID: 29147540 PMCID: PMC5637463 DOI: 10.1039/c7sc01886j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/21/2017] [Indexed: 12/20/2022] Open
Abstract
Selective activation of diol groups by a borinic acid catalyst enables the synthesis of strictly linear polyesters from glycerol, a trifunctional monomer.
Diarylborinic acids catalyze the formation of linear polyesters from glycerol, a trifunctional, carbohydrate-based monomer. The selective activation of 1,2-diols over isolated alcohols by the organoboron catalyst results in polymers that are essentially free of branching or cross-linking and possess a high fraction of 1,3-enchained glycerol units, as assessed by 1H and 13C NMR spectroscopy. The ability to generate well-defined polyester architectures from glycerol is significant in light of the numerous applications of such macromolecules, particularly in the biomedical area. Isomerization, post-polymerization functionalization and controlled cross-linking reactions of the obtained linear poly(glycerol esters) are demonstrated.
Collapse
Affiliation(s)
- Ekaterina Slavko
- Department of Chemistry , University of Toronto , Toronto , ON M5S 3H6 , Canada .
| | - Mark S Taylor
- Department of Chemistry , University of Toronto , Toronto , ON M5S 3H6 , Canada .
| |
Collapse
|
42
|
Wu Y, Smith AE, Reineke TM. Lipophilic Polycation Vehicles Display High Plasmid DNA Delivery to Multiple Cell Types. Bioconjug Chem 2017; 28:2035-2040. [PMID: 28731685 DOI: 10.1021/acs.bioconjchem.7b00306] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A class of cationic poly(alkylamidoamine)s (PAAAs) containing lipophilic methylene linkers were designed and examined as in vitro plasmid DNA (pDNA) delivery agents. The PAAAs were synthesized via step-growth polymerization between a diamine monomer and each of four different diacid chloride monomers with varying methylene linker lengths, including glutaryl chloride, adipoyl chloride, pimeloyl chloride, and suberoyl chloride, which served to systematically increase the lipophilicity of the polymers. The synthesized polymers successfully complexed with pDNA in reduced serum medium at N/P ratios of 5 and greater, resulting in polyplexes with hydrodynamic diameters of approximately 1 μm. These polyplexes were tested for in vitro transgene expression and cytotoxicity using HDFa (human dermal fibroblast), HeLa (human cervical carcinoma), HMEC (human mammary epithelial), and HUVEC (human umbilical vein endothelial) cells. Interestingly, select PAAA polyplex formulations were found to be more effective than Lipofectamine 2000 at promoting transgene expression (GFP) while maintaining comparable or higher cell viability. Transgene expression was highest in HeLa cells (∼90% for most formulations) and lowest in HDFa cells (up to ∼20%) as measured by GFP fluorescence. In addition, the cytotoxicity of PAAA polyplex formulations was significantly increased as the molecular weight, N/P ratio, and methylene linker length were increased. The PAAA vehicles developed herein provide a new delivery vehicle design strategy of displaying attributes of both polycations and lipids, which show promise as a tunable scaffold for refining the structure-activity-toxicity profiles for future genome editing studies.
Collapse
Affiliation(s)
- Yaoying Wu
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Adam E Smith
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States.,Department of Chemical Engineering, University of Mississippi , 134 Anderson, University, Mississippi 38677, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
43
|
Wang HJ, He X, Luo TY, Zhang J, Liu YH, Yu XQ. Amphiphilic carbon dots as versatile vectors for nucleic acid and drug delivery. NANOSCALE 2017; 9:5935-5947. [PMID: 28440819 DOI: 10.1039/c7nr01029j] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Carbon dot (CD)-based multifunctional delivery systems have shown great potential in both drug/gene delivery and bio-imaging. In this work, we present a strategy to simply construct amphiphilic CDs (ACDs) by conjugating hydrophobic alkyl epoxide to the surface amino groups of PEI 600-derived CDs. ACDs could well dissolve in water or organic solvents and emit bright fluorescence both in solutions and cells. 1HNMR also suggested that ACDs may form micelle-like structures in water, and their CMC could be determined. Enhanced green fluorescent protein (EGFP) expression and flow cytometry experiments showed that ACDs have higher transfection efficiency than Lipofectamine 2000 in A549 cells. Besides DNA, ACDs could also effectively transfect Sur siRNA toward A549 cells and cause early cell apoptosis. The 3D multicellular spheroids further confirmed their high potential for delivering therapeutic genes into the tumor tissue. On the other hand, ACDs also exhibited good drug loading ability. CLSM experiment results showed that DOX could be effectively internalized by the cell and slowly released from the drug/ACD complex. These results suggest that ACDs may not only serve as versatile delivery vectors with potential for applications in clinical cancer treatment, but also offer an inspiration for the discovery of CD-based gene/drug delivery systems.
Collapse
Affiliation(s)
- Hai-Jiao Wang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
| | | | | | | | | | | |
Collapse
|
44
|
Guo Z, Chen J, Lin L, Guan X, Sun P, Chen M, Tian H, Chen X. pH Triggered Size Increasing Gene Carrier for Efficient Tumor Accumulation and Excellent Antitumor Effect. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15297-15306. [PMID: 28425284 DOI: 10.1021/acsami.7b02734] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
High efficiency and serum resistant capacity are important for gene carrier in vivo usage. In this study, transfection efficiency and cell toxicity of polyethylenimine (PEI) (branched, Mw = 25K) was remarkably improved, when mixed with polyanion (polyethylene glycol-polyglutamic acid (PEG-PLG) or polyglutamic acid (PLG)). Different composite orders of PEI, polyanion, and gene, for example, PEI is first complexed with DNA, and then with polyanion, or PEI is first complexed with polyanion, and then with DNA, were studied. Results showed that only the polyanion/PEI complexes exhibited additional properties, such as decreased pH, resulting in increased particle size, as well as enhanced serum resistance capability and improved tumor accumulation. The prepared gene carrier showed excellent antitumor effect, with no damage on major organs, which is suitable for in vivo gene antitumor therapy.
Collapse
Affiliation(s)
- Zhaopei Guo
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, China
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Taipa, Macao 999078, China
| | - Jie Chen
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, China
| | - Lin Lin
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, China
| | - Xiuwen Guan
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Pingjie Sun
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, China
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau , Taipa, Macao 999078, China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, China
| |
Collapse
|
45
|
Liu Q, Su RC, Yi WJ, Zhao ZG. Biodegradable Poly(Amino Ester) with Aromatic Backbone as Efficient Nonviral Gene Delivery Vectors. Molecules 2017; 22:E566. [PMID: 28362336 PMCID: PMC6154102 DOI: 10.3390/molecules22040566] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 03/25/2017] [Accepted: 03/28/2017] [Indexed: 11/16/2022] Open
Abstract
The development of gene delivery vectors with high efficiency and biocompatibility is one of the critical points of gene therapy. Two biodegradable poly(amino ester)s were synthesized via ring-opening polymerization between low molecular weight (LMW) PEI and diepoxide. The molecular weights of poly(amino ester)s were measured by GPC. Agarose gel retardation assays showed that these materials have good DNA-binding ability and can retard the electrophoretic mobility of plasmid DNA (pDNA) at a weight ratio of 1. The formed polyplexes have proper sizes of around 200 nm and zeta-potential values of about 30-40 mV for cellular uptake. In vitro experiments revealed that polymer P2 gave higher transfection efficiency than PEI 25KDa and Lipofectamine 2000 with less toxicity, especially in 293 cells. Results demonstrate that such a type of degradable poly(amino ester) may serve as a promising non-viral gene vector.
Collapse
Affiliation(s)
- Qiang Liu
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Rong-Chuan Su
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Wen-Jing Yi
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Zhi-Gang Zhao
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| |
Collapse
|
46
|
Xiao B, Ma P, Ma L, Chen Q, Si X, Walter L, Merlin D. Effects of tripolyphosphate on cellular uptake and RNA interference efficiency of chitosan-based nanoparticles in Raw 264.7 macrophages. J Colloid Interface Sci 2017; 490:520-528. [PMID: 27918990 PMCID: PMC5222762 DOI: 10.1016/j.jcis.2016.11.088] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/24/2016] [Accepted: 11/25/2016] [Indexed: 12/13/2022]
Abstract
Tumor necrosis factor-α (TNF-α) is a major pro-inflammatory cytokine that is mainly secreted by macrophages during inflammation. Here, we synthesized a series of N-(2-hydroxy)propyl-3-trimethyl ammonium chitosan chlorides (HTCCs), and then used a complex coacervation technique or tripolyphosphate (TPP)-assisted ionotropic gelation strategy to complex the HTCCs with TNF-α siRNA (siTNF) to form nanoparticles (NPs). The resultant NPs had a desirable particle size (210-279nm), a slightly positive zeta potential (14-22mV), and negligible cytotoxicity against Raw 264.7 macrophages and colon-26 cells. Subsequent cellular uptake tests demonstrated that the introduction of TPP to the NPs markedly increased their cellular uptake efficiency (to nearly 100%) compared with TPP-free NPs, and yielded a correspondingly higher intracellular concentration of siRNA. Critically, in vitro gene silencing experiments revealed that all of the TPP-containing NPs showed excellent efficiency in inhibiting the mRNA expression level of TNF-α (by approximately 85-92%, which was much higher than that obtained using Oligofectamine/siTNF complexes). Collectively, these results obviously suggest that our non-toxic TPP-containing chitosan-based NPs can be exploited as efficient siTNF carriers for the treatment of inflammatory diseases.
Collapse
Affiliation(s)
- Bo Xiao
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China; Institute for Biomedical Science, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta 30302, USA.
| | - Panpan Ma
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Lijun Ma
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Qiubing Chen
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Xiaoying Si
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Lewins Walter
- Institute for Biomedical Science, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta 30302, USA
| | - Didier Merlin
- Institute for Biomedical Science, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta 30302, USA; Atlanta Veterans Affairs Medical Center, Decatur 30033, USA
| |
Collapse
|
47
|
Xiao B, Xu Z, Viennois E, Zhang Y, Zhang Z, Zhang M, Han MK, Kang Y, Merlin D. Orally Targeted Delivery of Tripeptide KPV via Hyaluronic Acid-Functionalized Nanoparticles Efficiently Alleviates Ulcerative Colitis. Mol Ther 2017; 25:1628-1640. [PMID: 28143741 DOI: 10.1016/j.ymthe.2016.11.020] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 10/23/2016] [Accepted: 11/27/2016] [Indexed: 12/22/2022] Open
Abstract
Overcoming adverse effects and selectively delivering drug to target cells are two major challenges in the treatment of ulcerative colitis (UC). Lysine-proline-valine (KPV), a naturally occurring tripeptide, has been shown to attenuate the inflammatory responses of colonic cells. Here, we loaded KPV into hyaluronic acid (HA)-functionalized polymeric nanoparticles (NPs). The resultant HA-KPV-NPs had a desirable particle size (∼272.3 nm) and a slightly negative zeta potential (∼-5.3 mV). These NPs successfully mediated the targeted delivery of KPV to key UC therapy-related cells (colonic epithelial cells and macrophages). In addition, these KPV-loaded NPs appear to be nontoxic and biocompatible with intestinal cells. Intriguingly, we found that HA-KPV-NPs exert combined effects against UC by both accelerating mucosal healing and alleviating inflammation. Oral administration of HA-KPV-NPs encapsulated in a hydrogel (chitosan/alginate) exhibited a much stronger capacity to prevent mucosa damage and downregulate TNF-α, thus they showed a much better therapeutic efficacy against UC in a mouse model, compared with a KPV-NP/hydrogel system. These results collectively demonstrate that our HA-KPV-NP/hydrogel system has the capacity to release HA-KPV-NPs in the colonic lumen and that these NPs subsequently penetrate into colitis tissues and enable KPV to be internalized into target cells, thereby alleviating UC.
Collapse
Affiliation(s)
- Bo Xiao
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, People's Republic of China; Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA.
| | - Zhigang Xu
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, People's Republic of China
| | - Emilie Viennois
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA
| | - Yuchen Zhang
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA
| | - Zhan Zhang
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA
| | - Mingzhen Zhang
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA
| | - Moon Kwon Han
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA
| | - Yuejun Kang
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, People's Republic of China
| | - Didier Merlin
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, USA; Atlanta Veterans Affairs Medical Center, Decatur, GA 30033, USA
| |
Collapse
|
48
|
Zhang YM, Huang Z, Zhang J, Wu WX, Liu YH, Yu XQ. Amphiphilic polymers formed from ring-opening polymerization: a strategy for the enhancement of gene delivery. Biomater Sci 2017; 5:718-729. [DOI: 10.1039/c6bm00859c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Ring-opening polymerization was found to be a promising strategy to improve the transfection efficiency and serum tolerance of cationic lipids.
Collapse
Affiliation(s)
- Yi-Mei Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Zheng Huang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Wan-Xia Wu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| |
Collapse
|
49
|
Wu H, Yang L, Tao L. Polymer synthesis by mimicking nature's strategy: the combination of ultra-fast RAFT and the Biginelli reaction. Polym Chem 2017. [DOI: 10.1039/c7py01313b] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A two-stage method has been developed by mimicking nature's protein synthesis strategy to prepare plenty of polymers using limited monomers.
Collapse
Affiliation(s)
- Haibo Wu
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Lei Yang
- Cancer Institute & Hospital
- Peking Union Medical College & Chinese Academy of Medical Sciences
- Beijing
- China
| | - Lei Tao
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| |
Collapse
|
50
|
Wang HJ, Zhang J, Liu YH, Luo TY, He X, Yu XQ. Hyaluronic acid-based carbon dots for efficient gene delivery and cell imaging. RSC Adv 2017. [DOI: 10.1039/c7ra01417a] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Two polymers were used with no additives to directly construct multifunctional carbon dots by a microwave-assisted method for simultaneous gene delivery and cell imaging.
Collapse
Affiliation(s)
- Hai-Jiao Wang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Tian-Ying Luo
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Xi He
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| |
Collapse
|