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Imran M, Gowd V, Saha P, Rashid S, Ahmad Chaudhary A, Mohamed MYA, Alawam AS, Khan R. Biologically inspired stealth - Camouflaged strategies in nanotechnology for the improved therapies in various diseases. Int J Pharm 2023; 631:122407. [PMID: 36402290 DOI: 10.1016/j.ijpharm.2022.122407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/27/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022]
Abstract
Nanotechnology has received increasing attention in the past decade and it's being used as a model for developing better treatments for a variety of diseases. Despite the fact that nanotechnology-based therapy has greatly improved treatment regimens, it still faces challenges such as inadequate circulation, insufficient accumulation at the target region, and undesired toxicity. In this regard, scientists are working on producing cell-membrane camouflaged nanoparticles as a biomimetic technique for modifying the surface of existing nanoparticles to produce significant therapeutic benefits following imparting myriad of desired functionalities. Membranes originating from erythrocytes, white blood cells, cancer cells, stem cells, platelets, or bacterial cells have been used to coat nanoparticle surfaces and create biologically inspired camouflaged nanoparticles. These biomemitic delivery systems have been proven to have potential applications in diagnosing and treating vaiorus diseases, including drug administration, immunisation, immunological regulation, and detoxification. From its inception to the present, we provide a complete description of this advanced technique for functionalizing nanoparticle surfaces. The method of making these membrane coated nanoparticles as well as their characterisation have been thoroughly discussed. Following that, we focused on the diversity of cell membranes derived from distinct cells in the evolution of nanoparticles, emphasising how these biologically inspired stealth - camouflaged techniques have led to increased therapeutic efficacy in a variety of disease states.
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Affiliation(s)
- Mohammad Imran
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali 140306, Punjab, India
| | - Vemana Gowd
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali 140306, Punjab, India
| | - Puspita Saha
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali 140306, Punjab, India
| | - Summya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Anis Ahmad Chaudhary
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSUI), Riyadh 11623, Saudi Arabia
| | - Marwa Yousry A Mohamed
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSUI), Riyadh 11623, Saudi Arabia
| | - Abdullah S Alawam
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSUI), Riyadh 11623, Saudi Arabia
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali 140306, Punjab, India.
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Li A, Zhang T, Huang T, Lin R, Mu J, Su Y, Sun H, Jiang X, Wu H, Xu D, Cao H, Sun X, Ling D, Gao J. Iron Oxide Nanoparticles Promote Cx43-Overexpression of Mesenchymal Stem Cells for Efficient Suicide Gene Therapy during Glioma Treatment. Am J Cancer Res 2021; 11:8254-8269. [PMID: 34373740 PMCID: PMC8344020 DOI: 10.7150/thno.60160] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Mesenchymal stem cells (MSCs) have been applied as a promising vehicle for tumour-targeted delivery of suicide genes in the herpes simplex virus thymidine kinase (HSV-tk)/ganciclovir (GCV) suicide gene therapy against malignant gliomas. The efficiency of this strategy is largely dependent on the bystander effect, which relies on high suicide gene expression levels and efficient transportation of activated GCV towards glioma cells. However, up to now, the methods to enhance the bystander effect of this strategy in an efficient and safe way are still lacking and new approaches to improve this therapeutic strategy are required. Methods: In this study, MSCs were gene transfected using magnetosome-like ferrimagnetic iron oxide nanochains (MFIONs) to highly express HSV-tk. Both the suicide and bystander effects of HSV-tk expressed MSCs (MSCs-tk) were quantitatively evaluated. Connexin 43 (Cx43) expression by MSCs and glioma cells was measured under different treatments. Intercellular communication between MSCs and C6 glioma cells was examined using a dye transfer assay. Glioma tropism and the bio-distribution of MSCs-tk were observed. Anti-tumour activity was investigated in the orthotopic glioma of rats after intravenous administration of MSCs-tk followed by intraperitoneal injection of GCV. Results: Gene transfection using MFIONs achieved sufficient expression of HSV-tk and triggered Cx43 overexpression in MSCs. These Cx43 overexpressing MSCs promoted gap junction intercellular communication (GJIC) between MSCs and glioma cells, resulting in significantly inhibited growth of glioma through an improved bystander effect. Outstanding tumour targeting and significantly prolonged survival with decreased tumour size were observed after the treatment using MFION-transfected MSCs in glioma model rats. Conclusion: Our results show that iron oxide nanoparticles have the potential to improve the suicide gene expression levels of transfected MSCs, while promoting the GJIC formation between MSCs and tumour cells, which enhances the sensitivity of glioma cells to HSV-tk/GCV suicide gene therapy.
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Jin J, Wu Y, Chen J, Shen Y, Zhang L, Zhang H, Chen L, Yuan H, Chen H, Zhang W, Luan X. The peptide PROTAC modality: a novel strategy for targeted protein ubiquitination. Theranostics 2020; 10:10141-10153. [PMID: 32929339 PMCID: PMC7481416 DOI: 10.7150/thno.46985] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023] Open
Abstract
Despite dramatic advances in drug discovery over the decades, effective therapeutic strategies for cancers treatment are still in urgent demands. PROteolysis TArgeting Chimera (PROTAC), a novel therapeutic modality, has been vigorously promoted in preclinical and clinical applications. Unlike small molecule PROTAC, peptide PROTAC (p-PROTAC) with advantages of high specificity and low toxicity, while avoiding the limitations of shallow binding pockets through large interacting surfaces, provides promising substitutions for E3 ubiquitin ligase complex-mediated ubiquitination of "undruggable proteins". It is worth noting that successful applications of p-PROTAC still have some obstacles, including low stability and poor membrane permeability. Hence, we highlight that p-PROTAC combined with cell-penetrating peptides, constrained conformation technique, and targeted delivery systems could be the future efforts for potential translational research.
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Affiliation(s)
- Jinmei Jin
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ye Wu
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jinjiao Chen
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yiwen Shen
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Lijun Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hong Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Lili Chen
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hebao Yuan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109 US
| | - Hongzhuan Chen
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Department of Pharmacology and Chemical Biology, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Weidong Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xin Luan
- Institute of Interdisciplinary Integrative Medicine Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Development of chitosan-coated liposome for pulmonary delivery of N-acetylcysteine. Int J Biol Macromol 2020; 156:1455-1463. [DOI: 10.1016/j.ijbiomac.2019.11.190] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/03/2019] [Accepted: 11/19/2019] [Indexed: 11/16/2022]
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Wang H, Liu Y, He R, Xu D, Zang J, Weeranoppanant N, Dong H, Li Y. Cell membrane biomimetic nanoparticles for inflammation and cancer targeting in drug delivery. Biomater Sci 2020; 8:552-568. [PMID: 31769765 DOI: 10.1039/c9bm01392j] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanoparticle capture and elimination by the immune system are great obstacles for drug delivery. Camouflaging nanoparticles with cell membrane represents a promising strategy to communicate and negotiate with the immune system. As a novel class of nanotherapeutics, such biomimetic nanoparticles inherit specific biological functionalities of the source cells (e.g., erythrocytes, immune cells, cancer cells and platelets) in order to evade immune elimination, prolong circulation time, and even target a disease region by virtue of the homing tendency of the cell membrane protein. In this review, we begin with an overview of different cell membranes that can be utilized to create a biointerface on nanoparticles. Subsequently, we elaborate on the state-of-the-art of cell membrane biomimetic nanoparticles for drug delivery. In particular, a summary of data on circulation capacity and targeting efficiency by camouflaged nanoparticles is presented. In addition to cancer therapy, inflammation treatment, as an emerging application of biomimetic nanoparticles, is specifically included. The challenges and outlook of this technology are discussed.
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Affiliation(s)
- Huaiji Wang
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, P. R. China.
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Metformin-loaded chitosomes for treatment of malignant pleural mesothelioma - A rare thoracic cancer. Int J Biol Macromol 2020; 160:128-141. [PMID: 32445818 DOI: 10.1016/j.ijbiomac.2020.05.146] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 02/07/2023]
Abstract
The purpose of this study was to design and evaluate chitosan dispersed lipid vesicles (chitosomes) as potential delivery carriers for repurposing metformin (Met) against malignant pleural mesothelioma. Chitosomes were prepared by directly hydrating the thin lipid film using chitosan solution as hydration medium, instead of using it as a coating agent. Developed chitosomes demonstrated spherical morphology, positive surface charge (~30 mV) and ~60% encapsulation efficiency. The calorimetric studies and X-ray diffraction pattern of Met-loaded chitosomes confirmed the successful encapsulation of Met inside the chitosome vesicles. Optimized chitosome formulation showed ~70% drug release in 72 h, displaying prolonged and controlled release of drug. Results demonstrated that Met encapsulated chitosomes possessed enhanced cellular internalization and improved cytotoxic potential. Our findings also supported inhibitory activity of chitosomes against metastatic property of pleural mesothelioma cells. The in-vitro tumor simulation studies further established anti-tumor activity of Met encapsulated chitosomes as supported by reduction in tumor volume and presence of minimal viable cells in tumor mass. The obtained results establish the effectiveness of chitosomes as delivery carrier for Met as treatment alternative for malignant pleural mesothelioma.
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Suicide Gene Therapy By Amphiphilic Copolymer Nanocarrier for Spinal Cord Tumor. NANOMATERIALS 2019; 9:nano9040573. [PMID: 30965667 PMCID: PMC6523721 DOI: 10.3390/nano9040573] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/30/2019] [Accepted: 03/30/2019] [Indexed: 02/06/2023]
Abstract
Spinal cord tumors (SCT) are uncommon neoplasms characterized by irregular growth of tissue inside the spinal cord that can result in non-mechanical back pain. Current treatments for SCT include surgery, radiation therapy, and chemotherapy, but these conventional therapies have many limitations. Suicide gene therapy using plasmid encoding herpes simplex virus-thymidine kinase (pHSV-TK) and ganciclovir (GCV) has been an alternative approach to overcome the limitations of current therapies. However, there is a need to develop a carrier that can deliver both pHSV-TK and GCV for improving therapeutic efficacy. Our group developed a cationic, amphiphilic copolymer, poly (lactide-co-glycolide) -graft-polyethylenimine (PgP), and demonstrated its efficacy as a drug and gene carrier in both cell culture studies and animal models. In this study, we evaluated PgP as a gene carrier and demonstrate that PgP can efficiently deliver reporter genes, pGFP in rat glioma (C6) cells in vitro, and pβ-gal in a rat T5 SCT model in vivo. We also show that PgP/pHSV-TK with GCV treatment showed significantly higher anticancer activity in C6 cells compared to PgP/pHSV-TK without GCV treatment. Finally, we demonstrate that PgP/pHSV-TK with GCV treatment increases the suicide effect and apoptosis of tumor cells and reduces tumor size in a rat T5 SCT model.
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Yang S. Development and Pharmacokinetics Study of Antifungal Peptide Nanoliposomes by Liquid Chromatography-tandem Mass Spectrometry. CURR PHARM ANAL 2019. [DOI: 10.2174/1573412914666180307155328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The therapeutic ability and application of antifungal peptide (APs) are limited
by their physico-chemical and biological properties, the nano-liposomal encapsulation would improve
the in vivo circulation and stability.
</P><P>
Objective: To develop a long-circulating liposomal delivery systems encapsulated APs-CGA-N12 with
PEGylated lipids and cholesterol, and investigated through in vivo pharmacokinetics.
Methods:
The liposomes were prepared and characterized, a rapid and simple liquid chromatographytandem
mass spectrometry (LC-MS/MS) assay was developed for the determination of antifungal peptide
in vivo, the pharmacokinetic characteristics of APs liposomes were evaluated in rats.
Results:
Liposomes had a large, unilamellar structure, particle size and Zeta potential ranged from 160
to 185 nm and -0.55 to 1.1 mV, respectively. The results indicated that the plasma concentration of
peptides in reference solutions rapidly declined after intravenous administration, whereas the
liposomeencapsulated ones showed slower elimination. The AUC(0-∞) was increased by 3.0-fold in
liposomes in comparison with standard solution (20 mg·kg-1), the half-life (T1/2) was 1.6- and 1.5-fold
higher compared to the reference groups of 20 and 40 mg·kg-1, respectively.
Conclusion:
Therefore, it could be concluded that liposomal encapsulation effectively improved the
bioavailability and pharmacokinetic property of antifungal peptides.
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Affiliation(s)
- Shuoye Yang
- College of Bioengineering, Henan University of Technology, Zhengzhou, China
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YİĞİT İ, GÜNAYDIN B, O. EMMEZ H, ULUDAĞ O, BAL NB, DEĞİM T. Antinociceptive Effect of Liposomal Bupivacaine Formulations After Intrathecal Administration in Rats. Turk J Med Sci 2019; 49:429-434. [PMID: 30761835 PMCID: PMC7350835 DOI: 10.3906/sag-1806-200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background/aim Based on our previous in vitro study with multilamellar liposomal bupivacaine (MLB) versus bupivacaine alone in artificial cerebrospinal fluid, we aimed to investigate in vivo antinociceptive effect of intrathecal MLB by determining tail flick latency (TFL) time after thermal stimulation in rats. Materials and methods After preparing MLB and high-yield drug entrapment in liposome (HYDEL) bupivacaine, 18 female Wistar rats were assigned to 3 groups as control (bupivacaine) and study groups (MLB and HYDEL bupivacaine) including 6 rats in each group to administer these drugs intrathecally. Antinociceptive activity was determined in terms of TFL time after thermal stimulation. Maximum possible effect (MPE) calculated from TFL times and rats with motor block were documented. Results TFL times after intrathecal injection of HYDEL bupivacaine were significantly longer than that of the control and MLB groups (P < 0.05) and returned to baseline 180 min after intrathecal injection. MPE (100%) with intrathecal HYDEL bupivacaine occurred between 10 to 45 min. Afterwards, MPEs were 70% and 50% for the control and MLB groups, respectively. Motor block disappeared after 20 min in the study groups while it lasted 75 min in the control. Conclusion Intrathecal administration of MLB and HYDEL bupivacaine in rats resulted in longer duration of antinociceptive activity with shorter motor block duration.
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Affiliation(s)
- İlker YİĞİT
- Department of Anesthesiology, Faculty of Medicine, Gazi University, AnkaraTurkey
| | - Berrin GÜNAYDIN
- Department of Anesthesiology, Faculty of Medicine, Gazi University, AnkaraTurkey
- * To whom correspondence should be addressed. E-mail:
| | - Hakan O. EMMEZ
- Department of Neurosurgery, Faculty of Medicine, Gazi University, AnkaraTurkey
| | - Orhan ULUDAĞ
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, AnkaraTurkey
| | - Nur Banu BAL
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, AnkaraTurkey
| | - Tuncer DEĞİM
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, AnkaraTurkey
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Volatile Acid-Solvent Evaporation (VASE): Molecularly Homogeneous Distribution of Acyclovir in a Bioerodable Polymer Matrix for Long-Term Treatment of Herpes Simplex Virus-1 Infections. JOURNAL OF DRUG DELIVERY 2018; 2018:6161230. [PMID: 30356432 PMCID: PMC6178155 DOI: 10.1155/2018/6161230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 06/07/2018] [Accepted: 09/03/2018] [Indexed: 11/19/2022]
Abstract
Treatment for herpes simplex virus-1 and -2 (HSV-1 and -2) patients who suffer from recurrent outbreaks consists of multiple daily doses of the antiviral drugs acyclovir (ACV), penciclovir, or their more orally bioavailable derivatives valacyclovir or famciclovir. Drug troughs caused by missed doses may result in viral replication, which can generate drug-resistant mutants along with clinical sequelae. We developed a molecularly homogeneous mixture of ACV with the bioerodable polymer polycaprolactone. Through scanning electron microscopy, infrared spectroscopy, gel permeation chromatography, 1H NMR, and differential scanning calorimetry, our method of combining drug and polymer, termed Volatile Acid-Solvent Evaporation (VASE), does not compromise the integrity of polymer or drug. Furthermore, VASE creates materials that deliver therapeutic amounts of drug consistently for approximately two months. Devices with high enough drug loads diminish primary infection of HSV-1 in Vero cells to the same level as seen with a single dose of ACV. Our data will lead to further experiments in animal models, demonstrating efficacy in preventing reactivation of these viruses with a single intervention, and with other antiviral drugs amenable to such manipulation. Additionally, this type of treatment would leave no trace after its useful lifetime, as drug is released and polymer matrix is degraded in vivo.
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Regulation of proliferation and functioning of transplanted cells by using herpes simplex virus thymidine kinase gene in mice. J Control Release 2018; 275:78-84. [DOI: 10.1016/j.jconrel.2018.02.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/26/2018] [Accepted: 02/13/2018] [Indexed: 01/01/2023]
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Shape-controlled magnetic mesoporous silica nanoparticles for magnetically-mediated suicide gene therapy of hepatocellular carcinoma. Biomaterials 2018; 154:147-157. [DOI: 10.1016/j.biomaterials.2017.10.047] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 10/22/2017] [Accepted: 10/29/2017] [Indexed: 12/21/2022]
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Wang S, Zhao C, Liu P, Wang Z, Ding J, Zhou W. Facile construction of dual-targeting delivery system by using lipid capped polymer nanoparticles for anti-glioma therapy. RSC Adv 2018. [DOI: 10.1039/c7ra12376k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A facile and reliable platform to construct dual targeting nanoparticles for glioma treatment, and the targeting efficiency was demonstrated.
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Affiliation(s)
- Shengfeng Wang
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
- Department of Pharmacy
| | - Chuantong Zhao
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
| | - Peng Liu
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
| | - Zhe Wang
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
| | - Jinsong Ding
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
| | - Wenhu Zhou
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- China
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Yang J, Shi LK, Sun HM, Wang YM. Antiproliferative effect of double suicide gene delivery mediated by polyamidoamine dendrimers in human Tenon's capsule fibroblasts. Exp Ther Med 2017; 14:5473-5479. [PMID: 29285078 PMCID: PMC5740715 DOI: 10.3892/etm.2017.5235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 07/27/2017] [Indexed: 01/15/2023] Open
Abstract
The aim of the present study was to investigate the therapeutic potential of a double suicide gene, thymidine kinase (TK) combined with cytosine deaminase (CD), mediated by generation of 5-polyamidoamine dendrimers (G5-PAMAM-D) on human Tenon's capsule fibroblasts (HTFs) as an anti-scarring agent. The pAcGFP1-Hyg-TK-CD plasmid was transfected into HTFs, and reverse-transcription polymerase chain reaction (RT-PCR) was used to detect TK-CD expression. MTT cell proliferation assay was used to evaluate the cytotoxic effects of ganciclovir (GCV) and 5-flurocytosine (5-FC) on HTFs. The optimal concentration of GCV and 5-FC in TK-CD transfected HTFs (HTF-TK-CD) was selected by accessing the lowest and highest cytotoxicity caused, respectively. The morphological changes of transfected HTFs following treatment with GCV and 5-FC were observed by light and transmission electron microscopy. Results demonstrated that the double suicide gene TK-CD mediated by the G5-PAMAM-D delivery system was successfully expressed in HTFs as determined by RT-PCR. A concentration of 3 µg/ml GCV and 200 µg/ml 5-FC was identified as optimal for these prodrugs. The growth rate and number of HTF-TK-CD cells decreased following treatment with GCV and 5-FC as revealed by light microscopy. Additionally, the prodrugs GCV and 5-FC not only demonstrated toxicity on transfected HTFs but also exerted a 'bystander effect'. The present study illustrated that the double suicide gene TK-CD delivery mediated by G5-PAMAM-D was effective in reducing HTF proliferation and inducing cell apoptosis. Furthermore, TK-CD delivery mediated by G5-PAMAM-D may be used as an anti-scarring agent and provide a therapeutic potential for patients requiring glaucoma filtration surgery.
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Affiliation(s)
- Jin Yang
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, Tianjin 300020, P.R. China
| | - Liu Kun Shi
- Department of Ophthalmology, Tianjin Medical University, Tianjin 300384, P.R. China
| | - Hui Min Sun
- Department of Glaucoma, College of Optometry and Ophthalmology, Tianjin Medical University Eye Institute, Tianjin Medical University Eye Hospital, Tianjin Medical University, Tianjin 300384, P.R. China
| | - Yan Ming Wang
- College of Pharmacy, Nankai University, Tianjin 300071, P.R. China
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Siafaka PI, Üstündağ Okur N, Karavas E, Bikiaris DN. Surface Modified Multifunctional and Stimuli Responsive Nanoparticles for Drug Targeting: Current Status and Uses. Int J Mol Sci 2016; 17:E1440. [PMID: 27589733 PMCID: PMC5037719 DOI: 10.3390/ijms17091440] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/09/2016] [Accepted: 08/19/2016] [Indexed: 02/07/2023] Open
Abstract
Nanocarriers, due to their unique features, are of increased interest among researchers working with pharmaceutical formulations. Polymeric nanoparticles and nanocapsules, involving non-toxic biodegradable polymers, liposomes, solid lipid nanoparticles, and inorganic-organic nanomaterials, are among the most used carriers for drugs for a broad spectrum of targeted diseases. In fact, oral, injectable, transdermal-dermal and ocular formulations mainly consist of the aforementioned nanomaterials demonstrating promising characteristics such as long circulation, specific targeting, high drug loading capacity, enhanced intracellular penetration, and so on. Over the last decade, huge advances in the development of novel, safer and less toxic nanocarriers with amended properties have been made. In addition, multifunctional nanocarriers combining chemical substances, vitamins and peptides via coupling chemistry, inorganic particles coated by biocompatible materials seem to play a key role considering that functionalization can enhance characteristics such as biocompatibility, targetability, environmental friendliness, and intracellular penetration while also have limited side effects. This review aims to summarize the "state of the art" of drug delivery carriers in nanosize, paying attention to their surface functionalization with ligands and other small or polymeric compounds so as to upgrade active and passive targeting, different release patterns as well as cell targeting and stimuli responsibility. Lastly, future aspects and potential uses of nanoparticulated drug systems are outlined.
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Affiliation(s)
- Panoraia I Siafaka
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Macedonia, Greece.
| | - Neslihan Üstündağ Okur
- Department of Pharmaceutical Technology, School of Pharmacy, Istanbul Medipol University, Beykoz 34810, Istanbul, Turkey.
| | | | - Dimitrios N Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Macedonia, Greece.
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Düzlü AÜ, Günaydın B, Şüküroğlu MK, Değim İT. Release Pattern of Liposomal Bupivacaine in Artificial Cerebrospinal Fluid. Turk J Anaesthesiol Reanim 2016; 44:1-6. [PMID: 27366547 DOI: 10.5152/tjar.2016.02438] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 08/02/2015] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE We aimed to compare the possible controlled release profile of multilamellar liposomal bupivacaine formulations with non-liposomal forms in artificial cerebrospinal fluid (CSF) under in vitro conditions. METHODS Liposome formulations were prepared using a dry-film hydration method. Then, an artificial CSF-buffered solution was prepared. Bupivacaine base with liposomal bupivacaine base, bupivacaine HCl with liposomal bupivacaine HCl and bupivacaine HCl were added in a Franz diffusion cell. These solutions were kept in a hot water bath for 24 h. The samples were taken at 0.5, 1, 3, 6, 12 and 24 h (1st series of experiment). Solutions of bupivacaine base with liposomal bupivacaine base and bupivacaine HCl with liposomal bupivacaine HCl were centrifuged to obtain liposomal bupivacaine base and liposomal bupivacaine HCl. Afterwards, liposomal bupivacaine base and liposomal bupivacaine HCl were added in a Franz diffusion cell. After keeping these solutions in a hot water bath for 24 h as well, the samples were taken at the same time intervals (2(nd) series of experiment). All samples (54 from the 1st experiment and 36 from the 2(nd) experiment) were analysed with high-performance liquid chromatography and ultra-performance liquid chromatography and their chromatograms were obtained. RESULTS After obtaining calibration curves for bupivacaine base and HCl, release patterns of these formulations were plotted. A markedly controlled slow-release pattern was observed for multilamellar liposomal bupivacaine than for non-liposomal bupivacaine in artificial CSF. CONCLUSION Demonstration of controlled slow-release profile for mutilamellar liposomal bupivacaine in artificial CSF in vitro might support intrathecal use of liposomal bupivacaine in vivo in animal studies.
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Affiliation(s)
- Ayşe Ünal Düzlü
- Department of Anesthesiology and Reanimation, Gazi University School of Medicine, Ankara, Turkey
| | - Berrin Günaydın
- Department of Anesthesiology and Reanimation, Gazi University School of Medicine, Ankara, Turkey
| | - Murat Kadir Şüküroğlu
- Department of Pharmaceutical Chemistry, Gazi University School of Pharmacy, Ankara, Turkey
| | - İsmail Tuncer Değim
- Department of Pharmaceutical Technology, Gazi University School of Pharmacy, Ankara, Turkey
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17
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Hwang JY, Li Z, Loh XJ. Small molecule therapeutic-loaded liposomes as therapeutic carriers: from development to clinical applications. RSC Adv 2016. [DOI: 10.1039/c6ra09854a] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In this review, various methods and mechanisms for encapsulation of small therapeutic molecules in liposomes for targeted delivery and triggered release, as well as their potential in the clinical uses, are discussed.
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Affiliation(s)
- Jae Yoon Hwang
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE)
- Singapore 117602
- Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE)
- Singapore 117602
- Singapore
- Department of Materials Science and Engineering
- National University of Singapore
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18
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Dergunov SA, Bowles EA, Gordon W, Green M, Bierman A, Ellsworth ML, Pinkhassik E, Sprague RS. Liposomal delivery of a phosphodiesterase 3 inhibitor rescues low oxygen-induced ATP release from erythrocytes of humans with type 2 diabetes. Biochem Biophys Rep 2015; 2:137-142. [PMID: 29124155 PMCID: PMC5668668 DOI: 10.1016/j.bbrep.2015.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 05/20/2015] [Accepted: 05/27/2015] [Indexed: 01/01/2023] Open
Abstract
ATP release from erythrocytes in response to low oxygen tension requires an increase in cAMP, the level of which is regulated by phosphodiesterase 3 (PDE3). Such release is defective in erythrocytes of humans with type 2 diabetes (DM2). This study tested a hypothesis that direct delivery of the clinically useful PDE3 inhibitor, cilostazol, to erythrocytes of humans with type 2 diabetes using liposomes would restore low-oxygen tension-induced ATP release. Cilostazol was incorporated into liposomes prepared from dimyristoylphosphatidylcholine (DMPC). Liposome-delivery of cilostazol restored ATP release from DM2 erythrocytes to levels which were not different from that released from non-cilostazol treated healthy erythrocytes under the same conditions. There were no observed adverse effects of the liposomes on either healthy or DM2 erythrocytes. The directed liposomal delivery of PDE inhibitors to erythrocytes may help prevent or slow the development of peripheral vascular disease in individuals with DM2 by restoring an important physiological controller of microvascular perfusion while minimizing side effects associated with systemic delivery of some of these inhibitors. Liposomes can deliver phosphodiesterase (PDE) inhibitors to erythrocytes. No adverse effect of drug-loaded liposomes on erythrocytes was observed. Release of ATP from erythrocytes of patients with type 2 diabetes was investigated. Liposome-delivered PDE inhibitors restore the release of ATP in response to low O2.
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Affiliation(s)
- Sergey A Dergunov
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Storrs, CT 06269, USA
| | - Elizabeth A Bowles
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, 1402 South Grand Boulevard, St. Louis, MO 63104, USA
| | - Weston Gordon
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, 1402 South Grand Boulevard, St. Louis, MO 63104, USA
| | - Michael Green
- Department of Chemistry, Saint Louis University, 3501 Laclede Avenue, St. Louis, MO 63103, USA
| | - August Bierman
- Department of Chemistry, Saint Louis University, 3501 Laclede Avenue, St. Louis, MO 63103, USA
| | - Mary L Ellsworth
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, 1402 South Grand Boulevard, St. Louis, MO 63104, USA
| | - Eugene Pinkhassik
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Storrs, CT 06269, USA
| | - Randy S Sprague
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, 1402 South Grand Boulevard, St. Louis, MO 63104, USA
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19
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Zhang TY, Huang B, Wu HB, Wu JH, Li LM, Li YX, Hu YL, Han M, Shen YQ, Tabata Y, Gao JQ. Synergistic effects of co-administration of suicide gene expressing mesenchymal stem cells and prodrug-encapsulated liposome on aggressive lung melanoma metastases in mice. J Control Release 2015; 209:260-71. [PMID: 25966361 DOI: 10.1016/j.jconrel.2015.05.007] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 04/17/2015] [Accepted: 05/08/2015] [Indexed: 11/30/2022]
Abstract
The success of conventional suicide gene therapy for cancer treatment is still limited because of lack of efficient delivery methods, as well as poor penetration into tumor tissues. Mesenchymal stem cells (MSCs) have recently emerged as potential vehicles in improving delivery issues. However, these stem cells are usually genetically modified using viral gene vectors for suicide gene overexpression to induce sufficient therapeutic efficacy. This approach may result in safety risks for clinical translation. Therefore, we designed a novel strategy that uses non-viral gene vector in modifying MSCs with suicide genes to reduce risks. In addition, these cells were co-administrated with prodrug-encapsulated liposomes for synergistic anti-tumor effects. Results demonstrate that this strategy is effective for gene and prodrug delivery, which co-target tumor tissues, to achieve a significant decrease in tumor colonization and a subsequent increase in survival in a murine melanoma lung metastasis model. Moreover, for the first time, we demonstrated the permeability of MSCs within tumor nests by using an in vitro 3D tumor spheroid model. Thus, the present study provides a new strategy to improve the delivery problem in conventional suicide gene therapy and enhance the therapeutic efficacy. Furthermore, this study also presents new findings to improve our understanding of MSCs in tumor-targeted gene delivery.
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Affiliation(s)
- Tian-Yuan Zhang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
| | - Bing Huang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
| | - Hai-Bin Wu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
| | - Jia-He Wu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
| | - Li-Ming Li
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
| | - Yan-Xin Li
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu-Lan Hu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
| | - Min Han
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
| | - You-Qing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, PR China
| | - Yasuhiko Tabata
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Jian-Qing Gao
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China.
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20
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Ring-opening polymerization of ε-caprolactone initiated by ganciclovir (GCV) for the preparation of GCV-tagged polymeric micelles. Molecules 2015; 20:2857-67. [PMID: 25675152 PMCID: PMC6272954 DOI: 10.3390/molecules20022857] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 02/03/2015] [Indexed: 11/21/2022] Open
Abstract
Ganciclovir (GCV) is a nucleoside analogue with antiviral activity against herpes viral infections, and the most widely used antiviral to treat cytomegalovirus infections. However, the low bioavailability and short half-life of GCV necessitate the development of a carrier for sustained delivery. In this study, guanosine-based GCV was used as the initiator directly in ring-opening polymerization of ε-caprolactone (ε-CL) to form hydrophobic GCV-poly(caprolactone) (GCV-PCL) which was then grafted with hydrophilic chitosan to form amphiphilic copolymers for the preparation of stable micellar nanoparticles. Successful synthesis of GCV-PCL and GCV-PCL-chitosan were verified by 1H-NMR analysis. Self-assembled micellar nanoparticles were characterized by dynamic light scattering and zetasizer with an average size of 117 nm and a positive charge of 24.2 mV. The drug release kinetics of GCV was investigated and cytotoxicity assay demonstrated that GCV-tagged polymeric micelles were non-toxic. Our results showed that GCV could be used directly in the initiation of ring-opening polymerization of ε-CL and non-toxic polymeric micelles for GCV delivery can be formed.
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21
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Liu Z, Zhao H, He L, Yao Y, Zhou Y, Wu J, Liu J, Ding J. Aptamer density dependent cellular uptake of lipid-capped polymer nanoparticles for polyvalent targeted delivery of vinorelbine to cancer cells. RSC Adv 2015. [DOI: 10.1039/c4ra16371k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
In this work, MUC1 aptamer (designated S2.2) modified and vinorelbine (VRL) loaded lipid-polymer hybrid nanoparticles (Apt-VRL-NPs) were prepared.
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Affiliation(s)
- Zhenbao Liu
- School of Pharmaceutical Sciences
- Central South University
- Changsha 410013
- People's Republic of China
| | - Huanzhe Zhao
- School of Pharmaceutical Sciences
- Central South University
- Changsha 410013
- People's Republic of China
| | - Lingyun He
- School of Pharmaceutical Sciences
- Central South University
- Changsha 410013
- People's Republic of China
| | - Yao Yao
- School of Pharmaceutical Sciences
- Central South University
- Changsha 410013
- People's Republic of China
| | - Yanbin Zhou
- School of Pharmaceutical Sciences
- Central South University
- Changsha 410013
- People's Republic of China
| | - Jianping Wu
- School of Pharmaceutical Sciences
- Central South University
- Changsha 410013
- People's Republic of China
| | - Juewen Liu
- School of Pharmaceutical Sciences
- Central South University
- Changsha 410013
- People's Republic of China
- Department of Chemistry
| | - Jinsong Ding
- School of Pharmaceutical Sciences
- Central South University
- Changsha 410013
- People's Republic of China
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22
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Liposomes as carriers of hydrophilic small molecule drugs: Strategies to enhance encapsulation and delivery. Colloids Surf B Biointerfaces 2014; 123:345-63. [DOI: 10.1016/j.colsurfb.2014.09.029] [Citation(s) in RCA: 292] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/30/2014] [Accepted: 09/14/2014] [Indexed: 12/18/2022]
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23
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Tran TH, Ramasamy T, Poudel BK, Marasini N, Moon BK, Cho HJ, Choi HG, Yong CS, Kim JO. Preparation and characterization of spray-dried gelatin microspheres encapsulating ganciclovir. Macromol Res 2013. [DOI: 10.1007/s13233-014-2018-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Hallaj-Nezhadi S, Dass CR, Lotfipour F. Intraperitoneal delivery of nanoparticles for cancer gene therapy. Future Oncol 2013; 9:59-68. [PMID: 23252564 DOI: 10.2217/fon.12.171] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Nanoparticle-based gene delivery systems may be more efficient for administration of therapeutic genes to solid tumors and cancer metastases, owing to the numerous advantages in terms of enhanced tissue penetrability, improved cellular uptake and targeted gene delivery to the cells of interest compared with other gene delivery systems. Intraperitoneal (IP) delivery of therapeutic agents offers special merits because of the anatomical situation of peritoneum for local cancer therapy. Via the IP administration route, it is possible to target the therapeutic agents exactly to the target cells and protect healthy tissues outside the peritoneal cavity from side effects. IP delivery could be applicable for the treatment of disorders of organs in the peritoneal cavity covered with peritoneum and subperitoneal connective tissue, including cancers such as ovarian and gastric. The goal of this article is to review the current state of IP delivery of nanoparticles for cancer gene therapy.
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Affiliation(s)
- Somayeh Hallaj-Nezhadi
- Pharmacy Faculty & Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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25
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Niu J, Huang A, Xiao Y, Su Z, Li H, Ping Q, Bao X, Li S, Chen Y, Sun M. Octreotide-mediated tumor cell uptake and intracellular pH-responsive drug delivery of the self-assembly supramolecular nanocarrier. J Drug Target 2013; 21:415-26. [PMID: 23597028 DOI: 10.3109/1061186x.2012.757771] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this study, DOX-loaded supramolecular nanocarrier (DLSC) was assembled by using two new amphiphilic polymers, octreotide-polyethylene glycol monostearate (OPMS) and N-octyl-N-succinyl O-carboxymethyl chitosan (OSCC). The characteristics of the DLSC were investigated. The results indicated that the significant pH-triggered release in vitro. The cellular uptake of DLSC was much higher than that of DOX-loaded OSCC micelles (DLOM) in the SMMC-7721 (somatostatin receptor (SSTR) over-expressed cell) cells, which suggested the SSTR-mediated properties. A considerable amount of drug entered the nucleus due to the pH-triggered deformation of the supramolecular structure and rapid release of drug in acidic endosomes of tumor cells. The killing efficacy was much higher than that of DLOM in the SMMC-7721. In S180 sarcoma-bearing KM mice, the biodistribution and therapeutic activity were studied. DLSC showed extended circulation time in plasma, decreasing drug concentrations in the heart and accumulating drug concentrations in the pancreas and tumor. In addition, minimized weight changes and cardiac toxicity, high suppression ratio of tumor growth and longer survival time were observed after intravenous injection of DLSC. The studies suggested that the supramolecular nanocarrier constructed of different designated polymers with multiple functions would be one of the most effective approaches for active targeting drug delivery.
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Affiliation(s)
- Jiangxiu Niu
- Department of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang , Nanjing 210009, PR China
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26
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Sun Y, Liang X, Zhu M, Zhao J, Cheng Y, Duan Y. Characterization and Bioactivity of Alginate-Quaternized Chitosan Microcapsules. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2012. [DOI: 10.1080/10601325.2012.676908] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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27
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Wakasugi A, Asakawa M, Kogiso M, Shimizu T, Sato M, Maitani Y. Organic nanotubes for drug loading and cellular delivery. Int J Pharm 2011; 413:271-8. [DOI: 10.1016/j.ijpharm.2011.04.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Accepted: 04/15/2011] [Indexed: 11/26/2022]
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28
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Chen D, Jiang X, Liu J, Jin X, Zhang C, Ping Q. In vivo evaluation of novel pH-sensitive mPEG-Hz-Chol conjugate in liposomes: pharmacokinetics, tissue distribution, efficacy assessment. ACTA ACUST UNITED AC 2011; 38:136-42. [PMID: 20337549 DOI: 10.3109/10731191003685481] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Daquan Chen
- College of Pharmacy, China Pharmaceutical University, Nanjing, PR China
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29
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Urbán P, Estelrich J, Cortés A, Fernàndez-Busquets X. A nanovector with complete discrimination for targeted delivery to Plasmodium falciparum-infected versus non-infected red blood cells in vitro. J Control Release 2011; 151:202-11. [PMID: 21223986 DOI: 10.1016/j.jconrel.2011.01.001] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 12/22/2010] [Accepted: 01/04/2011] [Indexed: 12/22/2022]
Abstract
Current administration methods of antimalarial drugs deliver the free compound in the blood stream, where it can be unspecifically taken up by all cells, and not only by Plasmodium-infected red blood cells (pRBCs). Nanosized carriers have been receiving special attention with the aim of minimizing the side effects of malaria therapy by increasing drug bioavailability and selectivity. Liposome encapsulation has been assayed for the delivery of compounds against murine malaria, but there is a lack of cellular studies on the performance of targeted liposomes in specific cell recognition and on the efficacy of cargo delivery, and very little data on liposome-driven antimalarial drug targeting to human-infecting parasites. We have used fluorescence microscopy to assess in vitro the efficiency of liposomal nanocarriers for the targeted delivery of their contents to pRBCs. 200-nm liposomes loaded with quantum dots were covalently functionalized with oriented, specific half-antibodies against P. falciparum late form-infected pRBCs. In less than 90min, liposomes dock to pRBC plasma membranes and release their cargo to the cell. 100.0% of late form-containing pRBCs and 0.0% of non-infected RBCs in P. falciparum cultures are recognized and permeated by the content of targeted immunoliposomes. Liposomes not functionalized with antibodies are also specifically directed to pRBCs, although with less affinity than immunoliposomes. In preliminary assays, the antimalarial drug chloroquine at a concentration of 2nM, ≥10 times below its IC(50) in solution, cleared 26.7±1.8% of pRBCs when delivered inside targeted immunoliposomes.
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Affiliation(s)
- Patricia Urbán
- Nanobioengineering Group, Institute for Bioengineering of Catalonia, Baldiri Reixac 10-12, Barcelona, Spain
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30
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PEGylated lipidic systems with prolonged circulation longevity for drug delivery in cancer therapeutics. J Drug Deliv Sci Technol 2011. [DOI: 10.1016/s1773-2247(11)50003-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Dachs GU, Hunt MA, Syddall S, Singleton DC, Patterson AV. Bystander or no bystander for gene directed enzyme prodrug therapy. Molecules 2009; 14:4517-45. [PMID: 19924084 PMCID: PMC6255103 DOI: 10.3390/molecules14114517] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2009] [Revised: 11/03/2009] [Accepted: 11/05/2009] [Indexed: 12/12/2022] Open
Abstract
Gene directed enzyme prodrug therapy (GDEPT) of cancer aims to improve the selectivity of chemotherapy by gene transfer, thus enabling target cells to convert nontoxic prodrugs to cytotoxic drugs. A zone of cell kill around gene-modified cells due to transfer of toxic metabolites, known as the bystander effect, leads to tumour regression. Here we discuss the implications of either striving for a strong bystander effect to overcome poor gene transfer, or avoiding the bystander effect to reduce potential systemic effects, with the aid of three successful GDEPT systems. This review concentrates on bystander effects and drug development with regard to these enzyme prodrug combinations, namely herpes simplex virus thymidine kinase (HSV-TK) with ganciclovir (GCV), cytosine deaminase (CD) from bacteria or yeast with 5-fluorocytodine (5-FC), and bacterial nitroreductase (NfsB) with 5-(azaridin-1-yl)-2,4-dinitrobenzamide (CB1954), and their respective derivatives.
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Affiliation(s)
- Gabi U. Dachs
- Angiogenesis and Cancer Research Group, University of Otago, Christchurch, PO Box 4345, Christchurch 8140, New Zealand; E-Mail: (M.A.H.)
| | - Michelle A. Hunt
- Angiogenesis and Cancer Research Group, University of Otago, Christchurch, PO Box 4345, Christchurch 8140, New Zealand; E-Mail: (M.A.H.)
| | - Sophie Syddall
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; E-Mails: (S.S.); (D-C.S.); (A-V.P.)
| | - Dean C. Singleton
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; E-Mails: (S.S.); (D-C.S.); (A-V.P.)
| | - Adam V. Patterson
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; E-Mails: (S.S.); (D-C.S.); (A-V.P.)
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32
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Sverdlov ED. Not gene therapy, but genetic surgery-the right strategy to attack cancer. MOLECULAR GENETICS, MICROBIOLOGY AND VIROLOGY : MOLEKULYARNAYA GENETIKA, MIKROBIOLOGIYA I VIRUSOLOGIYA 2009; 24:93-113. [PMID: 32214647 PMCID: PMC7089455 DOI: 10.3103/s089141680903001x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this review, I will suggest to divide all the approaches united now under common term "gene therapy" into two broad strategies of which the first one uses the methodology of targeted therapy with all its characteristics, but with genes in the role of agents targeted at a certain molecular component(s) presumably crucial for cancer maintenance. In contrast, the techniques of the other strategy are aimed at the destruction of tumors as a whole using the features shared by all cancers, for example relatively fast mitotic cell division or active angiogenesis. While the first strategy is "true" gene therapy, the second one is more like genetic surgery when a surgeon just cuts off a tumor with his scalpel and has no interest in knowing delicate mechanisms of cancer emergence and progression. I will try to substantiate the idea that the last strategy is the only right one, and its simplicity is paradoxically adequate to the super-complexity of tumors that originates from general complexity of cell regulation, strongly disturbed in tumor cells, and especially from the complexity of tumors as evolving cell populations, affecting also their ecological niche formed by neighboring normal cells and tissues. An analysis of the most widely used for such a "surgery" suicide gene/prodrug combinations will be presented in some more details.
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Affiliation(s)
- E D Sverdlov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAN, Moscow, Russia
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33
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Satoh T, Higuchi Y, Kawakami S, Hashida M, Kagechika H, Shudo K, Yokoyama M. Encapsulation of the synthetic retinoids Am80 and LE540 into polymeric micelles and the retinoids' release control. J Control Release 2009; 136:187-95. [DOI: 10.1016/j.jconrel.2009.02.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2008] [Revised: 02/18/2009] [Accepted: 02/27/2009] [Indexed: 10/21/2022]
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34
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Abstract
Herpes viruses (herpes simplex, varicella zoster, cytomegalovirus) are the main cause of a wide variety of human infections. Although the development of successful antiviral agents against infections caused by herpes viruses had been slow until the last decade, the production of delivery systems for acyclovir are a promising alternative. The present review summarizes the principal advances made in developing carriers for the delivery of acyclovir by different routes of administration.
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Affiliation(s)
- Rita Cortesi
- University of Ferrara, Department of Pharmaceutical Sciences, CoReS Techno Group, Via Fossato di Mortara, 19-44100 Ferrara, Italy.
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35
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Wan F, You J, Sun Y, Zhang XG, Cui FD, Du YZ, Yuan H, Hu FQ. Studies on PEG-modified SLNs loading vinorelbine bitartrate (I): Preparation and evaluation in vitro. Int J Pharm 2008; 359:104-10. [DOI: 10.1016/j.ijpharm.2008.03.030] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2007] [Revised: 03/08/2008] [Accepted: 03/20/2008] [Indexed: 11/25/2022]
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36
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Lee ES, Gao Z, Bae YH. Recent progress in tumor pH targeting nanotechnology. J Control Release 2008; 132:164-70. [PMID: 18571265 DOI: 10.1016/j.jconrel.2008.05.003] [Citation(s) in RCA: 631] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2008] [Revised: 04/30/2008] [Accepted: 05/05/2008] [Indexed: 11/29/2022]
Abstract
pH-sensitive polymeric micelles and nanogels have recently been developed to target slightly acidic extracellular pH environment of solid tumors. The pH targeting approach is regarded as a more general strategy than conventional specific tumor cell surface targeting approaches, because the acidic tumor microclimate is most common in solid tumors. When nanosystems are combined with triggered release mechanisms by endosomal or lysosomal acidity plus endosomolytic capability, the nanocarriers demonstrated to overcome multidrug resistance of various tumors. This review highlights recent progress of the pH-sensitive nanotechnology developed in Bae research group.
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Affiliation(s)
- Eun Seong Lee
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, 421 Wakara Way, Suite 315, Utah 84108, USA
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