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Wang B, Cao B, Bei ZC, Xu L, Zhang D, Zhao L, Song Y, Wang H. Disulfide-incorporated lipid prodrugs of cidofovir: Synthesis, antiviral activity, and release mechanism. Eur J Med Chem 2023; 258:115601. [PMID: 37390509 DOI: 10.1016/j.ejmech.2023.115601] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 06/20/2023] [Accepted: 06/24/2023] [Indexed: 07/02/2023]
Abstract
The double-stranded DNA (dsDNA) viruses represented by adenovirus and monkeypox virus, have attracted widespread attention due to their high infectivity. In 2022, the global outbreak of mpox (or monkeypox) has led to the declaration of a Public Health Emergency of International Concern. However, to date therapeutics approved for dsDNA virus infections remain limited and there are still no available treatments for some of these diseases. The development of new therapies for treating dsDNA infection is in urgent need. In this study, we designed and synthesized a series of novel disulfide-incorporated lipid conjugates of cidofovir (CDV) as potential candidates against dsDNA viruses including vaccinia virus (VACV) and adenovirus (AdV) 5. The structure-activity relationship analyses revealed that the optimum linker moiety was C2H4 and the optimum aliphatic chain length was 18 or 20 atoms. Among the synthesized conjugates, 1c exhibited more potency against VACV (IC50 = 0.0960 μM in Vero cells; IC50 = 0.0790 μM in A549 cells) and AdV5 (IC50 = 0.1572 μM in A549 cells) than brincidofovir (BCV). The transmission electron microscopy (TEM) images revealed that the conjugates could form micelles in phosphate buffer. The stability studies in the GSH environment demonstrated that the formation of micelles in phosphate buffer might protect the disulfide bond from glutathione (GSH) reduction. The dominant means of the synthetic conjugates to liberate the parent drug CDV was by enzymatic hydrolysis. Furthermore, the synthetic conjugates remained sufficiently stable in simulated gastric fluid (SGF), simulated intestinal fluid (SIF), and pooled human plasma, which indicated the possibility for oral administration. These results indicated 1c may be a broad-spectrum antiviral candidate against dsDNA viruses with potential oral administration. Moreover, modification of the aliphatic chain attached to the nucleoside phosphonate group was involved as an efficient prodrug strategy for the development of potent antiviral candidates.
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Affiliation(s)
- Baogang Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Binwang Cao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Zhu-Chun Bei
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Likun Xu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Dongna Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Liangliang Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Yabin Song
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China.
| | - Hongquan Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China.
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Hock N, Racaniello GF, Aspinall S, Denora N, Khutoryanskiy VV, Bernkop‐Schnürch A. Thiolated Nanoparticles for Biomedical Applications: Mimicking the Workhorses of Our Body. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2102451. [PMID: 34773391 PMCID: PMC8728822 DOI: 10.1002/advs.202102451] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/13/2021] [Indexed: 05/03/2023]
Abstract
Advances in nanotechnology have generated a broad range of nanoparticles (NPs) for numerous biomedical applications. Among the various properties of NPs are functionalities being related to thiol substructures. Numerous biological processes that are mediated by cysteine or cystine subunits of proteins representing the workhorses of the bodies can be transferred to NPs. This review focuses on the interface between thiol chemistry and NPs. Pros and cons of different techniques for thiolation of NPs are discussed. Furthermore, the various functionalities gained by thiolation are highlighted. These include overall bio- and mucoadhesive, cellular uptake enhancing, and permeation enhancing properties. Drugs being either covalently attached to thiolated NPs via disulfide bonds or being entrapped in thiolated polymeric NPs that are stabilized via inter- and intrachain crosslinking can be released at the diseased tissue or in target cells under reducing conditions. Moreover, drugs, targeting ligands, biological analytes, and enzymes bearing thiol substructures can be immobilized on noble metal NPs and quantum dots for therapeutic, theranostic, diagnostic, biosensing, and analytical reasons. Within this review a concise summary and analysis of the current knowledge, future directions, and potential clinical use of thiolated NPs are provided.
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Affiliation(s)
- Nathalie Hock
- Thiomatrix Forschungs und Beratungs GmbHTrientlgasse 65Innsbruck6020Austria
| | | | - Sam Aspinall
- Reading School of PharmacyUniversity of ReadingWhiteknights PO Box 224, Room 122 (Chemistry and Pharmacy Building)ReadingRG66DXUK
| | - Nunzio Denora
- Department of Pharmacy – Pharmaceutical SciencesUniversity of Bari “Aldo Moro”Bari70125Italy
| | - Vitaliy V. Khutoryanskiy
- Reading School of PharmacyUniversity of ReadingWhiteknights PO Box 224, Room 122 (Chemistry and Pharmacy Building)ReadingRG66DXUK
| | - Andreas Bernkop‐Schnürch
- Department of Pharmaceutical Technology, Institute of PharmacyUniversity of InnsbruckInnrain 80/82Innsbruck6020Austria
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3
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Nucleoside-Lipid-Based Nanoparticles for Phenazine Delivery: A New Therapeutic Strategy to Disrupt Hsp27-eIF4E Interaction in Castration Resistant Prostate Cancer. Pharmaceutics 2021; 13:pharmaceutics13050623. [PMID: 33925528 PMCID: PMC8146835 DOI: 10.3390/pharmaceutics13050623] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 11/25/2022] Open
Abstract
Heat shock protein 27 (Hsp27) has an established role in tumor progression and chemo-resistance of castration-resistant prostate cancer (CRPC). Hsp27 protects eukaryotic translation initiation factor 4E (eIF4E) from degradation, thereby maintaining survival during treatment. Phenazine derivative compound #14 was demonstrated to specifically disrupt Hsp27/eIF4E interaction and significantly delay castration-resistant tumor progression in prostate cancer xenografts. In the present work, various strategies of encapsulation of phenazine #14 with either DOTAU (N-[5′-(2′,3′-dioleoyl)uridine]-N′,N′,N′-trimethylammonium tosylate) and DOU-PEG2000 (5′-PEG2000-2′,3′-dioleoyluridine) nucleolipids (NLs) were developed in order to improve its solubilization, biological activity, and bioavailability. We observed that NLs-encapsulated phenazine #14-driven Hsp27-eIF4E interaction disruption increased cytotoxic effects on castration-resistant prostate cancer cell line and inhibited tumor growth in castration-resistant prostate cancer cell xenografted mice compared to phenazine #14 and NLs alone. Phenazine #14 NL encapsulation might represent an interesting nanostrategy for CRPC therapy.
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Liu K, Sun Y, Cao M, Wang J, Lu JR, Xu H. Rational design, properties, and applications of biosurfactants: a short review of recent advances. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2019.12.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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5
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Kumar K, Yadav L, Kondaiah P, Chaudhary S. Efficacious Doxorubicin Delivery Using Glutathione‐Responsive Hollow Non‐phospholipid Vesicles Bearing Lipoyl Cholesterols. ChemMedChem 2019; 14:1633-1640. [DOI: 10.1002/cmdc.201900335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/19/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Krishan Kumar
- Department of ChemistryMalaviya National Institute of Technology, Jawaharlal Nehru Marg Jaipur 302017 India
| | - Lalit Yadav
- Department of ChemistryMalaviya National Institute of Technology, Jawaharlal Nehru Marg Jaipur 302017 India
| | - Paturu Kondaiah
- Department of Molecular Reproduction, Development and GeneticsIndian Institute of Science Bangalore 560012 India
| | - Sandeep Chaudhary
- Department of ChemistryMalaviya National Institute of Technology, Jawaharlal Nehru Marg Jaipur 302017 India
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Lin JT, Ye QB, Yang QJ, Wang GH. Hierarchical bioresponsive nanocarriers for codelivery of curcumin and doxorubicin. Colloids Surf B Biointerfaces 2019; 180:93-101. [PMID: 31035057 DOI: 10.1016/j.colsurfb.2019.04.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/21/2019] [Accepted: 04/10/2019] [Indexed: 12/30/2022]
Abstract
Hierarchical responsive nanocarriers have received much attention for targeted delivery of chemotherapeutics. In this study, we designed pH and redox dual-stage responsive nanocarriers in the different delivery stages for co-delivery phosphorylated curcumin (p-Cur) with doxorubicin (Dox). The MSNs nanocarriers were functionalized via specific cleavable PEGylation and hydrogel coating crosslinked by disulfide bonds: MSNs as core load Dox; p-Cur encapsulated in hydrogel coating. In blood circulation, PEGylation endow the nanocarriers with long time during blood circulation; while in tumor tissue, PEG shells could be cleaved due to the pH-sensitive bond and expose the cationic hydrogel coating to improve cell uptake; while inside tumor cells, hydrogel coating could be cleaved due to the GSH and release the drugs. The results showed that the dual-responsive shells endowed the nanocarriers with tumor extracellular pH-triggered cell uptake and specific cancer cell target release. The synergistic effects of the p-Cur and Dox enhanced cellular apoptosis in Hela cells.
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Affiliation(s)
- Jian-Tao Lin
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, China; Shenzhen Songgang Hospital, Shenzhen, 518105, China.
| | - Qing-Bang Ye
- Dongguan Third People's Hospital, Dongguan, 523326, China.
| | - Qing-Jin Yang
- Analysis Center, Guangdong Medical University, Zhanjiang, 524023, China.
| | - Guan-Hai Wang
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, China; State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541004, China.
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7
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Kim CH, Sa CK, Goh MS, Lee ES, Kang TH, Yoon HY, Battogtokh G, Ko YT, Choi YW. pH-sensitive PEGylation of RIPL peptide-conjugated nanostructured lipid carriers: design and in vitro evaluation. Int J Nanomedicine 2018; 13:6661-6675. [PMID: 30425481 PMCID: PMC6204877 DOI: 10.2147/ijn.s184355] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND RIPL peptide (IPLVVPLRRRRRRRRC)-conjugated nanostructured lipid carriers (RIPL-NLCs) can facilitate selective drug delivery to hepsin (Hpn)-expressing cancer cells, but they exhibit low stability in the blood. Generally, biocompatible and nontoxic poly(ethylene glycol) surface modification (PEGylation) can enhance NLC stability, although this may impair drug delivery and NLC clearance. To attain RIPL-NLC steric stabilization without impairing function, pH-sensitive cleavable PEG (cPEG) was grafted onto RIPL-NLCs (cPEG-RIPL-NLCs). METHODS Various types of NLC formulations including RIPL-NLCs, PEG-RIPL-NLCs, and cPEG-RIPL-NLCs were prepared using the solvent emulsification-evaporation method and characterized for particle size, zeta potential (ZP), and cytotoxicity. The steric stabilization effect was evaluated by plasma protein adsorption and phagocytosis inhibition studies. pH-sensitive cleavage was investigated using the dialysis method under different pH conditions. Employing a fluorescent probe (1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate [DiI]), in vitro drug delivery capacity of the cPEG-RIPL-NLCs under different pH conditions was also performed on Hpn-expressing SKOV3 cells and 3D-tumor spheroids. RESULTS All prepared NLCs showed homogenous dispersion (<220 nm in size) with a negative ZP (-18 to -22 mV), except for positively charged RIPL-NLCs (~10 mV), revealing no significant cytotoxicity in either SKOV3 or RAW 264.7 cell lines. cPEG-RIPL-NLC protein adsorption was 1.75-fold less than that of RIPL-NLCs, and PEGylation significantly reduced the macrophage uptake. PEG detachment from the cPEG-RIPL-NLCs was pH-sensitive and time dependent. At 2 hours incubation, cPEG-RIPL-NLCs and PEG-RIPL-NLCs exhibited comparable cellular uptake at pH 7.4, whereas cPEG-RIPL-NLC uptake was increased over 2-fold at pH 6.5. 3D-spheroid penetration also demonstrated pH-sensitivity: at pH 7.4, cPEG-RIPL-NLCs could not penetrate deep into the spheroid core region during 2 hours, whereas at pH 6.5, high fluorescence intensity in the core region was observed for both cPEG-RIPL-NLC-and RIPL-NLC-treated groups. CONCLUSION cPEG-RIPL-NLCs are good candidates for Hpn-selective drug targeting in conjunction with pH-responsive PEG cleavage.
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Affiliation(s)
- Chang Hyun Kim
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea,
| | - Cheol-Ki Sa
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea,
| | - Min Su Goh
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea,
| | - Eun Seok Lee
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea,
| | - Tae Hoon Kang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea,
| | - Ho Yub Yoon
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea,
| | | | - Young Tag Ko
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
| | - Young Wook Choi
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea,
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8
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Chromatographic study of nucleoside-lipids by RP-UHPLC-DAD/CAD. Anal Bioanal Chem 2018; 410:7711-7721. [DOI: 10.1007/s00216-018-1388-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/12/2018] [Accepted: 09/17/2018] [Indexed: 12/01/2022]
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9
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Abstract
Gene therapy has emerged as an alternative in the treatment of cancer, particularly in cases of resistance to chemo and radiotherapy. Different approaches to deliver genetic material to tumor tissues have been proposed, including the use of small non-coding RNAs due to their multiple mechanisms of action. However, such promise has shown limits in in vivo application related to RNA's biological instability and stimulation of immunity, urging the development of systems able to overcome those barriers. In this review, we discuss the use of RNA interference in cancer therapy with special attention to the role of siRNA and miRNA and to the challenges of their delivery in vivo. We introduce a promising class of drug delivery system known as micelle-like nanoparticles and explore their synthesis and advantages for gene therapy as well as the recent findings in in vitro, in vivo and clinical studies.
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10
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Fang Y, Xue J, Gao S, Lu A, Yang D, Jiang H, He Y, Shi K. Cleavable PEGylation: a strategy for overcoming the "PEG dilemma" in efficient drug delivery. Drug Deliv 2018; 24:22-32. [PMID: 29069920 PMCID: PMC8812578 DOI: 10.1080/10717544.2017.1388451] [Citation(s) in RCA: 201] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
To prolong the circulation time of drug, PEGylation has been widely used via the enhanced permeability and retention (EPR) effect, thereby providing new hope for better treatment. However, PEGylation also brings the "PEG dilemma", which is difficult for the cellular absorption of drugs and subsequent endosomal escape. As a result, the activity of drugs is inevitably lost after PEG modification. To achieve successful drug delivery for effective treatment, the crucial issue associated with the use of PEG-lipids, that is, “PEG dilemma” must be addressed. In this paper, we introduced the development and application of nanocarriers with cleavable PEGylation, and discussed various strategies for overcoming the PEG dilemma. Compared to the traditional ones, the vehicle systems with different environmental-sensitive PEG-lipids were discussed, which cleavage can be achieved in response to the intracellular as well as the tumor microenvironment. This smart cleavable PEGylation provides us an efficient strategy to overcome “PEG dilemma”, thereby may be a good candidate for the cancer treatment in future.
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Affiliation(s)
- Yan Fang
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Jianxiu Xue
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Shan Gao
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Anqi Lu
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Dongjuan Yang
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Hong Jiang
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Yang He
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Kai Shi
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
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11
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Baillet J, Desvergnes V, Hamoud A, Latxague L, Barthélémy P. Lipid and Nucleic Acid Chemistries: Combining the Best of Both Worlds to Construct Advanced Biomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1705078. [PMID: 29341288 DOI: 10.1002/adma.201705078] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/20/2017] [Indexed: 06/07/2023]
Abstract
Hybrid synthetic amphiphilic biomolecules are emerging as promising supramolecular materials for biomedical and technological applications. Herein, recent progress in the field of nucleic acid based lipids is highlighted with an emphasis on their molecular design, synthesis, supramolecular properties, physicochemical behaviors, and applications in the field of health science and technology. In the first section, the design and the study of nucleolipids are in focus and then the glyconucleolipid family is discussed. In the last section, recent contributions of responsive materials involving nucleolipids and their use as smart drug delivery systems are discussed. The supramolecular materials generated by nucleic acid based lipids open new challenges for biomedical applications, including the fields of medicinal chemistry, biosensors, biomaterials for tissue engineering, drug delivery, and the decontamination of nanoparticles.
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Affiliation(s)
- Julie Baillet
- ARNA Laboratory, INSERM, U1212, CNRS UMR 5320, Université de Bordeaux, F-33076, Bordeaux, France
| | - Valérie Desvergnes
- ARNA Laboratory, INSERM, U1212, CNRS UMR 5320, Université de Bordeaux, F-33076, Bordeaux, France
| | - Aladin Hamoud
- ARNA Laboratory, INSERM, U1212, CNRS UMR 5320, Université de Bordeaux, F-33076, Bordeaux, France
| | - Laurent Latxague
- ARNA Laboratory, INSERM, U1212, CNRS UMR 5320, Université de Bordeaux, F-33076, Bordeaux, France
| | - Philippe Barthélémy
- ARNA Laboratory, INSERM, U1212, CNRS UMR 5320, Université de Bordeaux, F-33076, Bordeaux, France
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12
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Surface modification of lipid-based nanocarriers for cancer cell-specific drug targeting. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2017. [DOI: 10.1007/s40005-017-0329-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Dong K, Yan Y, Wang P, Shi X, Zhang L, Wang K, Xing J, Dong Y. Biodegradable mixed MPEG-SS-2SA/TPGS micelles for triggered intracellular release of paclitaxel and reversing multidrug resistance. Int J Nanomedicine 2016; 11:5109-5123. [PMID: 27785018 PMCID: PMC5063596 DOI: 10.2147/ijn.s111930] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In this study, a type of multifunctional mixed micelles were prepared by a novel biodegradable amphiphilic polymer (MPEG-SS-2SA) and a multidrug resistance (MDR) reversal agent (d-α-tocopheryl polyethylene glycol succinate, TPGS). The mixed micelles could achieve rapid intracellular drug release and reversal of MDR. First, the amphiphilic polymer, MPEG-SS-2SA, was synthesized through disulfide bonds between poly (ethylene glycol) monomethyl ether (MPEG) and stearic acid (SA). The structure of the obtained polymer was similar to poly (ethylene glycol)-phosphatidylethanolamine (PEG-PE). Then the mixed micelles, MPEG-SS-2SA/TPGS, were prepared by MPEG-SS-2SA and TPGS through the thin film hydration method and loaded paclitaxel (PTX) as the model drug. The in vitro release study revealed that the mixed micelles could rapidly release PTX within 24 h under a reductive environment because of the breaking of disulfide bonds. In cell experiments, the mixed micelles significantly inhibited the activity of mitochondrial respiratory complex II, also reduced the mitochondrial membrane potential, and the content of adenosine triphosphate, thus effectively inhibiting the efflux of PTX from cells. Moreover, in the confocal laser scanning microscopy, cellular uptake and 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assays, the MPEG-SS-2SA/TPGS micelles achieved faster release and more uptake of PTX in Michigan Cancer Foundation-7/PTX cells and showed better antitumor effects as compared with the insensitive control. In conclusion, the biodegradable mixed micelles, MPEG-SS-2SA/TPGS, could be potential vehicles for delivering hydrophobic chemotherapeutic drugs in MDR cancer therapy.
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Affiliation(s)
- Kai Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University
| | - Yan Yan
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Pengchong Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Xianpeng Shi
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Lu Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Ke Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Jianfeng Xing
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Yalin Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University
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14
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Giesler KE, Marengo J, Liotta DC. Reduction Sensitive Lipid Conjugates of Tenofovir: Synthesis, Stability, and Antiviral Activity. J Med Chem 2016; 59:7097-110. [PMID: 27405794 DOI: 10.1021/acs.jmedchem.6b00428] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The therapeutic value of numerous small molecules hinges on their ability to permeate the plasma membrane. This is particularly true for tenofovir (TFV), adefovir, and other antiviral nucleosides that demonstrate potent antiviral activity but poor bioavailability. Using TFV as a model substrate, we hybridized two disparate prodrug strategies to afford novel reduction-sensitive lipid conjugates of TFV that exhibit subnanomolar activity toward HIV-1 and are stable in human plasma for more than 24 h with a therapeutic index approaching 30000. These compounds significantly rival the clinically approved formulation of TFV and revitalize the potential of disulfide-bearing prodrugs which have seen limited in vitro and in vivo success since their debut over 20 years ago. We further demonstrate the utility of these conjugates as a tool to indirectly probe the enzymatic hydrolysis of phosphonomonoesters that may further advance the development of other prodrug strategies for nucleosides, peptides, and beyond.
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Affiliation(s)
- Kyle E Giesler
- Department of Chemistry, Emory University , 1521 Dickey Drive NE, Atlanta, Georgia 30322, United States
| | - Jose Marengo
- Emory Institute for Drug Development , 954 Gatewood Road, Atlanta, Georgia 30329, United States
| | - Dennis C Liotta
- Department of Chemistry, Emory University , 1521 Dickey Drive NE, Atlanta, Georgia 30322, United States.,Emory Institute for Drug Development , 954 Gatewood Road, Atlanta, Georgia 30329, United States
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15
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Dong H, Tang M, Li Y, Li Y, Qian D, Shi D. Disulfide-bridged cleavable PEGylation in polymeric nanomedicine for controlled therapeutic delivery. Nanomedicine (Lond) 2016; 10:1941-58. [PMID: 26139127 DOI: 10.2217/nnm.15.38] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
PEGylation in polymeric nanomedicine has gained substantial predominance in biomedical applications due to its resistance to protein absorption, which is critically important for a therapeutic delivery system in blood circulation. The shielding layer of PEGylation, however, creates significant steric hindrance that negatively impacts cellular uptake and intracellular distribution at the target site. This unexpected effect compromises the biological efficacy of the encapsulated payload. To address this issue, one of the key strategies is to tether the disulfide bond to PEG for constructing a disulfide-bridged cleavable PEGylation. The reversible disulfide bond can be cleaved to enable selective PEG detachment. This article provides an overview on the strategy, method and progress of PEGylation nanosystem with the cleavable disulfide bond.
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Affiliation(s)
- Haiqing Dong
- Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science (iNANO), Tongji University School of Medicine, Shanghai, China
| | - Min Tang
- Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science (iNANO), Tongji University School of Medicine, Shanghai, China
| | - Yan Li
- Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science (iNANO), Tongji University School of Medicine, Shanghai, China
| | - Yongyong Li
- Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science (iNANO), Tongji University School of Medicine, Shanghai, China
| | - Dong Qian
- Department of Mechanical Engineering, University of Texas at Dallas, TX 75080, USA
| | - Donglu Shi
- Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science (iNANO), Tongji University School of Medicine, Shanghai, China.,The Materials Science & Engineering Program, Department of Mechanical & Materials Engineering, College of Engineering & Applied Science, University of Cincinnati, Cincinnati, OH 45221, USA
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16
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Hersey JS, LaManna CM, Lusic H, Grinstaff MW. Stimuli responsive charge-switchable lipids: Capture and release of nucleic acids. Chem Phys Lipids 2016; 196:52-60. [PMID: 26896839 DOI: 10.1016/j.chemphyslip.2016.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 02/09/2016] [Accepted: 02/11/2016] [Indexed: 01/12/2023]
Abstract
Stimuli responsive lipids, which enable control over the formation, transformation, and disruption of supramolecular assemblies, are of interest for biosensing, diagnostics, drug delivery, and basic transmembrane protein studies. In particular, spatiotemporal control over a supramolecular structure can be achieved using light activated compounds to induce significant supramolecular rearrangements. As such, a family of cationic lipids are described which undergo a permanent switch in charge upon exposure to 365 nm ultraviolet (UV) light to enable the capture of negatively charged nucleic acids within the self-assembled supramolecular structure of the lipids and subsequent release of these macromolecules upon exposure to UV light and disruption of the assemblies. The lipids are composed of either two different tripeptide head groups, Lysine-Glycine-Glycine (KGG) and Glycine-Glycine-Glycine (GGG) and three different hydrocarbon chain lengths (C6, C10, or C14) terminated by a UV light responsive 1-(2-nitrophenyl)ethanol (NPE) protected carboxylic acid. The photolysis of the NPE protected lipid is measured as a function of time, and the resulting changes in net molecular charge are observed using zeta potential analysis for each head group and chain length combination. A proof of concept study for the capture and release of both linear DNA (calf thymus) and siRNA is presented using an ethidium bromide quenching assay where a balance between binding affinity and supramolecular stability are found to be the key to optimal nucleic acid capture and release.
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Affiliation(s)
- Joseph S Hersey
- Boston University, Biomedical Engineering Department, Boston, MA 02215, USA
| | - Caroline M LaManna
- Boston University, Biomedical Engineering Department, Boston, MA 02215, USA
| | - Hrvoje Lusic
- Boston University, Chemistry Department, Boston, MA 02215, USA
| | - Mark W Grinstaff
- Boston University, Biomedical Engineering Department, Boston, MA 02215, USA; Boston University, Chemistry Department, Boston, MA 02215, USA.
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17
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Oumzil K, Ramin MA, Lorenzato C, Hémadou A, Laroche J, Jacobin-Valat MJ, Mornet S, Roy CE, Kauss T, Gaudin K, Clofent-Sanchez G, Barthélémy P. Solid Lipid Nanoparticles for Image-Guided Therapy of Atherosclerosis. Bioconjug Chem 2016; 27:569-75. [PMID: 26751997 DOI: 10.1021/acs.bioconjchem.5b00590] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although the application of nanotechnologies to atherosclerosis remains a young field, novel strategies are needed to address this public health issue. In this context, the magnetic resonance imaging (MRI) approach has been gradually investigated in order to enable image-guided treatments. In this contribution, we report a new approach based on nucleoside-lipids allowing the synthesis of solid lipid nanoparticles (SLN) loaded with iron oxide particles and therapeutic agents. The insertion of nucleoside-lipids allows the formation of stable SLNs loaded with prostacycline (PGI2) able to inhibit platelet aggregation. The new SLNs feature better relaxivity properties in comparison to the clinically used contrast agent Feridex, indicating that SLNs are suitable for image-guided therapy.
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Affiliation(s)
- Khalid Oumzil
- University of Bordeaux, ARNA laboratory , F-33000 Bordeaux, France.,INSERM, U869, ARNA laboratory , F-33000 Bordeaux, France
| | - Michael A Ramin
- University of Bordeaux, ARNA laboratory , F-33000 Bordeaux, France.,INSERM, U869, ARNA laboratory , F-33000 Bordeaux, France
| | - Cyril Lorenzato
- CRMSB Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS, University of Bordeaux , F-33076 Bordeaux, France
| | - Audrey Hémadou
- CRMSB Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS, University of Bordeaux , F-33076 Bordeaux, France
| | - Jeanny Laroche
- CRMSB Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS, University of Bordeaux , F-33076 Bordeaux, France
| | - Marie Josée Jacobin-Valat
- CRMSB Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS, University of Bordeaux , F-33076 Bordeaux, France
| | - Stephane Mornet
- Institut de Chimie de la Matière Condensée de Bordeaux, ICMCB UPR CNRS 9048, University of Bordeaux , F-33608 Pessac, France
| | - Claude-Eric Roy
- University of Bordeaux, ARNA laboratory , F-33000 Bordeaux, France.,INSERM, U869, ARNA laboratory , F-33000 Bordeaux, France
| | - Tina Kauss
- University of Bordeaux, ARNA laboratory , F-33000 Bordeaux, France.,INSERM, U869, ARNA laboratory , F-33000 Bordeaux, France
| | - Karen Gaudin
- University of Bordeaux, ARNA laboratory , F-33000 Bordeaux, France.,INSERM, U869, ARNA laboratory , F-33000 Bordeaux, France
| | - Gisèle Clofent-Sanchez
- CRMSB Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS, University of Bordeaux , F-33076 Bordeaux, France
| | - Philippe Barthélémy
- University of Bordeaux, ARNA laboratory , F-33000 Bordeaux, France.,INSERM, U869, ARNA laboratory , F-33000 Bordeaux, France
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18
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Fu H, Shi K, Hu G, Yang Y, Kuang Q, Lu L, Zhang L, Chen W, Dong M, Chen Y, He Q. Tumor-Targeted Paclitaxel Delivery and Enhanced Penetration Using TAT-Decorated Liposomes Comprising Redox-Responsive Poly(Ethylene Glycol). J Pharm Sci 2015; 104:1160-73. [DOI: 10.1002/jps.24291] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/25/2014] [Accepted: 11/06/2014] [Indexed: 12/27/2022]
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19
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Tabatabaei Rezaei SJ, Amani V, Nabid MR, Safari N, Niknejad H. Folate-decorated polymeric Pt(ii) prodrug micelles for targeted intracellular delivery and cytosolic glutathione-triggered release of platinum anticancer drugs. Polym Chem 2015. [DOI: 10.1039/c5py00156k] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Bioreducible FA-PEG-b-P(α-Pt(ii)-SS-CL/CL) conjugates have been successfully developed in order to build redox-responsive micelles with targeting and site-specific drug releasing abilities.
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Affiliation(s)
| | - Vahid Amani
- Faculty of Chemistry
- Shahid Beheshti University
- Tehran
- Iran
| | | | - Nasser Safari
- Faculty of Chemistry
- Shahid Beheshti University
- Tehran
- Iran
| | - Hassan Niknejad
- Department of Tissue Engineering
- School of Advanced Technologies in Medicine
- Shahid Beheshti University of Medical Sciences
- Tehran
- Iran
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20
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Sun Y, Yu H, Yan Y, Chen C, Xu W, Lu JR, Xu H. Surface properties of nucleolipids and photo-controlled release of hydrophobic guest molecules from their micellar aggregates. SOFT MATTER 2014; 10:7218-7224. [PMID: 25103693 DOI: 10.1039/c4sm01374c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two series of nucleolipids have been designed and synthesized, one with a varying chain length (the dT-Cn series) and the other incorporating an aromatic photo-responsive moiety at the molecular hydrophobic and hydrophilic interface (the P-dT-Cn series). Surface tension measurements revealed the variations of critical micelle concentrations (CMCs) with the alkyl chain length and the incorporation of the photo-responsive segment. The P-dT-Cn series showed broadly lower CMCs and the minimum area per molecule (Amin) values because the π-π stacking between the additional aromatic rings favours more tight packing in the micelle formation. Both series showed similar surface tensions at the CMCs to conventional surfactants with equivalent molecular structures. Their micellar aggregates were used for encapsulation of hydrophobic Nile Red (NR). For the P-dT-Cn series, the encapsulated NR was released upon light irradiation and the controlled release was readily realized by controlling irradiation intensities or switching on and off irradiation. The integration of biocompatibility, complementary base recognition and photo-responsiveness makes the amphiphilic nucleolipids promising in biomedical and biotechnological applications.
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Affiliation(s)
- Yawei Sun
- Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao 266580, China.
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21
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Abstract
![]()
RNA
interference (RNAi) is an endogenous process in which small
noncoding RNAs, including small interfering RNAs (siRNAs) and microRNAs
(miRNAs), post-transcriptionally regulate gene expressions. In general,
siRNA and miRNA/miRNA mimics are similar in nature and activity except
their origin and specificity. Although both siRNAs and miRNAs have
been extensively studied as novel therapeutics for a wide range of
diseases, the large molecular weight, anionic surface charges, instability
in blood circulation, and intracellular trafficking to the RISC after
cellular uptake have hindered the translation of these RNAs from bench
to clinic. As a result, a great variety of delivery systems have been
investigated for safe and effective delivery of small noncoding RNAs.
Among these systems, peptides, especially cationic peptides, have
emerged as a promising type of carrier due to their inherent ability
to condense negatively charged RNAs, ease of synthesis, controllable
size, and tunable structure. In this review, we will focus on three
major types of cationic peptides, including poly(l-lysine)
(PLL), protamine, and cell penetrating peptides (CPP), as well as
peptide targeting ligands that have been extensively used in RNA delivery.
The delivery strategies, applications, and limitations of these cationic
peptides in siRNA/miRNA delivery will be discussed.
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Affiliation(s)
- Ravi S Shukla
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City , Kansas City, Missouri 64108, United States
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22
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Li R, Feng F, Wang Y, Yang X, Yang X, Yang VC. Folic acid-conjugated pH/temperature/redox multi-stimuli responsive polymer microspheres for delivery of anti-cancer drug. J Colloid Interface Sci 2014; 429:34-44. [PMID: 24935187 DOI: 10.1016/j.jcis.2014.05.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/07/2014] [Accepted: 05/09/2014] [Indexed: 12/29/2022]
Abstract
The folic acid (FA)-conjugated pH/temperature/redox multi-stimuli responsive poly(methacrylic acid-co-N,N-bis(acryloyl)cystamine/poly(N-isopropylacrylamide-co-glycidyl methacrylate-co-N,N-bis(acryloyl)cystamine) microspheres were prepared by a two-stage distillation-precipitation polymerization with subsequent surface modification with FA. The microspheres were characterized by transmission electron microscopy, dynamical light scattering, Fourier-transform infrared spectra, UV-vis spectra and elemental analysis. The degradation of the functional microspheres could be triggered by a reductive reagent, such as glutathione, due to presence of BAC crosslinker. The drug-loaded microspheres exhibited a pH/temperature/redox multi-stimuli responsive drug release character for doxorubicin hydrochloride as a model anti-cancer drug, which was efficiently loaded into the microspheres with a high loading capacity of 208.0% and an encapsulation efficiency of 85.4%. In vitro drug delivery study indicated that the FA-conjugated microspheres could deliver Dox into MCF-7 cells more efficiently than the microspheres without functionalization of FA. Furthermore, WST-1 assay showed that the microspheres had no obvious toxicity to MCF-7 cells even at a high concentration of 2000 μg mL(-1). The resultant microsphere may be a promising vector for delivery of anti-cancer drugs as it exhibits a low cytotoxicity and degradability, precise molecular targeting property and multi-stimuli responsively controlled drug release.
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Affiliation(s)
- Rongrong Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China
| | - Fuli Feng
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China
| | - Yinsong Wang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China
| | - Xiaoying Yang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China.
| | - Xinlin Yang
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, PR China.
| | - Victor C Yang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China
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23
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Oumzil K, Khiati S, Camplo M, Koquely M, Chuttani K, Chaturvedi S, Mishra AK, Barthélémy P. Nucleolipids as building blocks for the synthesis of 99mTc-labeled nanoparticles functionalized with folic acid. NEW J CHEM 2014. [DOI: 10.1039/c4nj00559g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nucleoside-lipids are efficient bio-inspired amphiphiles for the construction of nanoparticles for image-guided therapy applications.
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Affiliation(s)
- Khalid Oumzil
- INSERM U869
- Bordeaux, France
- Université de Bordeaux
- Bordeaux, France
| | - Salim Khiati
- INSERM U869
- Bordeaux, France
- Université de Bordeaux
- Bordeaux, France
| | - Michel Camplo
- CINaM
- Université de la méditerranée
- 13288 Marseille cedex 9, France
| | - Marc Koquely
- INSERM U869
- Bordeaux, France
- Université de Bordeaux
- Bordeaux, France
| | - Krishna Chuttani
- Division of Cyclotron and Radiopharmaceutical Sciences
- Institute of Nuclear Medicine and Allied Sciences (INMAS)
- DRDO
- Delhi, India
| | - Shubhra Chaturvedi
- Division of Cyclotron and Radiopharmaceutical Sciences
- Institute of Nuclear Medicine and Allied Sciences (INMAS)
- DRDO
- Delhi, India
| | - Anil K. Mishra
- Division of Cyclotron and Radiopharmaceutical Sciences
- Institute of Nuclear Medicine and Allied Sciences (INMAS)
- DRDO
- Delhi, India
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24
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Mo R, Sun Q, Li N, Zhang C. Intracellular delivery and antitumor effects of pH-sensitive liposomes based on zwitterionic oligopeptide lipids. Biomaterials 2013; 34:2773-86. [DOI: 10.1016/j.biomaterials.2013.01.030] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 01/04/2013] [Indexed: 10/27/2022]
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25
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Xu H, Deng YH, Wang KQ, Chen DW. Preparation and characterization of stable pH-sensitive vesicles composed of α-tocopherol hemisuccinate. AAPS PharmSciTech 2012; 13:1377-85. [PMID: 23054989 DOI: 10.1208/s12249-012-9863-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 09/21/2012] [Indexed: 11/30/2022] Open
Abstract
The current study aims to develop a stable pH-sensitive drug delivery system. First, cleavable polyethylene glycol-α-tocopherol hemisuccinate (PEG-THS) was synthesized. Conventional pH-sensitive vesicles composed of the Tris salt of α-tocopherol hemisuccinate (THST) were then prepared using the detergent removal technique. The vesicles had a mean particle size of (163.8 ± 5.5) nm and a zeta potential of -74.5 ± 6.4 mV. The THST vesicles were then modified using PEG-THS or uncleavable PEG-cholesterol (PEG-CHOL) (THST/PEG-lipids, 100:6 molar ratio). The mean vesicle particle size and absolute zeta potential decreased with increasing PEG-THS proportion. When the pH was decreased, the vesicle particle size and calcein release rate increased. The THST vesicles were initially Ca(2+)-unstable but exhibited significantly improved stability after modification with PEG-THS, especially at PEG-lipid ratios above 6%. Incubation in an acid serum increased the calcein release rate of conventional THST vesicles to 45 ± 1.98% at 10 min. However, the release rate of the PEG-CHOL vesicles remained low. The calcein release rate of PEG-THS vesicles was between those of conventional and PEG-CHOL-V. Therefore, PEG-THS can protect vesicles in serum and reconstitute their pH sensitivity in acidic conditions. Cleavable PEG-THS can be used in stable pH-sensitive preparations without loss of pH sensitivity. Free calcein and conventional vesicles eliminated from the plasma soon after injection, as well as the half-life (t(1/2)) and area under the curve of PEG-THS-V encapsulating calcein, were dramatically increased. This phenomenon indicates that the use of PEG-lipid derivatives has gained a favorably long circulation effect in mice.
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26
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Pearce TR, Shroff K, Kokkoli E. Peptide targeted lipid nanoparticles for anticancer drug delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:3803-22, 3710. [PMID: 22674563 DOI: 10.1002/adma.201200832] [Citation(s) in RCA: 138] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Indexed: 05/21/2023]
Abstract
Encapsulating anticancer drugs in nanoparticles has proven to be an effective mechanism to alter the pharmacokinetic and pharmacodynamic profiles of the drugs, leading to clinically useful cancer therapeutics like Doxil and DaunoXome. Underdeveloped tumor vasculature and lymphatics allow these first-generation nanoparticles to passively accumulate within the tumor, but work to create the next-generation nanoparticles that actively participate in the tumor targeting process is underway. Lipid nanoparticles functionalized with targeting peptides are among the most often studied. The goal of this article is to review the recently published literature of targeted nanoparticles to highlight successful designs that improved in vivo tumor therapy, and to discuss the current challenges of designing these nanoparticles for effective in vivo performance.
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Affiliation(s)
- Timothy R Pearce
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
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27
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LaManna CM, Lusic H, Camplo M, McIntosh TJ, Barthélémy P, Grinstaff MW. Charge-reversal lipids, peptide-based lipids, and nucleoside-based lipids for gene delivery. Acc Chem Res 2012; 45:1026-38. [PMID: 22439686 PMCID: PMC3878820 DOI: 10.1021/ar200228y] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Twenty years after gene therapy was introduced in the clinic, advances in the technique continue to garner headlines as successes pique the interest of clinicians, researchers, and the public. Gene therapy's appeal stems from its potential to revolutionize modern medical therapeutics by offering solutions to myriad diseases through treatments tailored to a specific individual's genetic code. Both viral and non-viral vectors have been used in the clinic, but the low transfection efficiencies when non-viral vectors are used have lead to an increased focus on engineering new gene delivery vectors. To address the challenges facing non-viral or synthetic vectors, specifically lipid-based carriers, we have focused on three main themes throughout our research: (1) The release of the nucleic acid from the carrier will increase gene transfection. (2) The use of biologically inspired designs, such as DNA binding proteins, to create lipids with peptide-based headgroups will improve delivery. (3) Mimicking the natural binding patterns observed within DNA, by using lipids having a nucleoside headgroup, will produce unique supramolecular assembles with high transfection efficiencies. The results presented in this Account demonstrate that engineering the chemical components of the lipid vectors to enhance nucleic acid binding and release kinetics can improve the cellular uptake and transfection efficacy of nucleic acids. Specifically, our research has shown that the incorporation of a charge-reversal moiety to initiate a shift of the lipid from positive to negative net charge improves transfection. In addition, by varying the composition of the spacer (rigid, flexible, short, long, or aromatic) between the cationic headgroup and the hydrophobic chains, we can tailor lipids to interact with different nucleic acids (DNA, RNA, siRNA) and accordingly affect delivery, uptake outcomes, and transfection efficiency. The introduction of a peptide headgroup into the lipid provides a mechanism to affect the binding of the lipid to the nucleic acid, to influence the supramolecular lipoplex structure, and to enhance gene transfection activity. Lastly, we discuss the in vitro successes that we have had when using lipids possessing a nucleoside headgroup to create unique self-assembled structures and to deliver DNA to cells. In this Account, we state our hypotheses and design elements as well as describe the techniques that we have used in our research to provide readers with the tools to characterize and engineer new vectors.
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Affiliation(s)
| | | | - Michel Camplo
- Departments of CINaM, Upr-Cnrs 3118, Université de la méditerranée 13288 Marseille cedex 09, France
| | - Thomas J. McIntosh
- Department of Cell Biology, Duke University Medical Center, Durham NC, 27710
| | - Philippe Barthélémy
- Departments of Inserm, U869, Bordeaux, F-33076 France
- Departments of Université de Bordeaux, F-33076, Bordeaux, France
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28
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Cai X, Dong C, Dong H, Wang G, Pauletti GM, Pan X, Wen H, Mehl I, Li Y, Shi D. Effective gene delivery using stimulus-responsive catiomer designed with redox-sensitive disulfide and acid-labile imine linkers. Biomacromolecules 2012; 13:1024-34. [PMID: 22443494 DOI: 10.1021/bm2017355] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A dual stimulus-responsive mPEG-SS-PLL(15)-glutaraldehyde star (mPEG-SS-PLL(15)-star) catiomer is developed and biologically evaluated. The catiomer system combines redox-sensitive removal of an external PEG shell with acid-induced escape from the endosomal compartment. The design rationale for PEG shell removal is to augment intracellular uptake of mPEG-SS-PLL(15)-star/DNA complexes in the presence of tumor-relevant glutathione (GSH) concentration, while the acid-induced dissociation is to accelerate the release of genetic payload following successful internalization into targeted cells. Size alterations of complexes in the presence of 10 mM GSH suggest stimulus-induced shedding of external PEG layers under redox conditions that intracellularly present in the tumor microenvironment. Dynamic laser light scattering experiments under endosomal pH conditions show rapid destabilization of mPEG-SS-PLL(15)-star/DNA complexes that is followed by facilitating efficient release of encapsulated DNA, as demonstrated by agarose gel electrophoresis. Biological efficacy assessment using pEGFP-C1 plasmid DNA encoding green fluorescence protein and pGL-3 plasmid DNA encoding luciferase as reporter genes indicate comparable transfection efficiency of 293T cells of the catiomer with a conventional polyethyleneimine (bPEI-25k)-based gene delivery system. These experimental results show that mPEG-SS-PLL(15)-star represents a promising design for future nonviral gene delivery applications with high DNA binding ability, low cytotoxicity, and high transfection efficiency.
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Affiliation(s)
- Xiaojun Cai
- The Institute for Advanced Materials and Nano Biomedicine, School of Medicine, Tongji University, Shanghai, China
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29
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Amoozgar Z, Yeo Y. Recent advances in stealth coating of nanoparticle drug delivery systems. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2012; 4:219-33. [PMID: 22231928 PMCID: PMC3288878 DOI: 10.1002/wnan.1157] [Citation(s) in RCA: 281] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Modifying surfaces of nanoparticles (NPs) with polyethylene glycol (PEG), the so-called PEGylation, is the most commonly used method for reducing premature clearance of NPs from the circulation. However, several reports point out that PEGylation may negatively influence the performance of NPs as a drug carrier. Alternative surface modification strategies, including substitute polymers, conditional removal of PEG, and biomimetic surface modification, may provide solutions for the limitations of PEG.
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Affiliation(s)
- Zohreh Amoozgar
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Yoon Yeo
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
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30
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Goldenbogen B, Brodersen N, Gramatica A, Loew M, Liebscher J, Herrmann A, Egger H, Budde B, Arbuzova A. Reduction-sensitive liposomes from a multifunctional lipid conjugate and natural phospholipids: reduction and release kinetics and cellular uptake. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:10820-10829. [PMID: 21819046 DOI: 10.1021/la201160y] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The development of targeted and triggerable delivery systems is of high relevance for anticancer therapies. We report here on reduction-sensitive liposomes composed of a novel multifunctional lipidlike conjugate, containing a disulfide bond and a biotin moiety, and natural phospholipids. The incorporation of the disulfide conjugate into vesicles and the kinetics of their reduction were studied using dansyl-labeled conjugate 1 in using the dansyl fluorescence environmental sensitivity and the Förster resonance energy transfer from dansyl to rhodamine-labeled phospholipids. Cleavage of the disulfide bridge (e.g., by tris(2-carboxyethyl)phosphine (TCEP), dithiothreitol (DTT), l-cysteine, or glutathione (GSH)) removed the hydrophilic headgroup of the conjugate and thus changed the membrane organization leading to the release of entrapped molecules. Upon nonspecific uptake of vesicles by macrophages, calcein release from reduction-sensitive liposomes consisting of the disulfide conjugate and phospholipids was more efficient than from reduction-insensitive liposomes composed only of phospholipids. The binding of streptavidin to the conjugates did not interfere with either the subsequent reduction of the disulfide bond of the conjugate or the release of entrapped molecules. Breast cancer cell line BT-474, overexpressing the HER2 receptor, showed a high uptake of the reduction-sensitive doxorubicin-loaded liposomes functionalized with the biotin-tagged anti-HER2 antibody. The release of the entrapped cargo inside the cells was observed, implying the potential of using our system for active targeting and delivery.
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Affiliation(s)
- Björn Goldenbogen
- Institute of Biology/Molecular Biophysics, Humboldt-University Berlin, Invalidenstrasse 42, 10115 Berlin, Germany
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