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Allemailem KS, Almatroudi A, Alsahli MA, Basfar GT, Alrumaihi F, Rahmani AH, Khan AA. Recent advances in understanding oligonucleotide aptamers and their applications as therapeutic agents. 3 Biotech 2020; 10:551. [PMID: 33269185 PMCID: PMC7686427 DOI: 10.1007/s13205-020-02546-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 11/06/2020] [Indexed: 12/12/2022] Open
Abstract
The innovative discovery of aptamers was based on target-specific treatment in clinical diagnostics and therapeutics. Aptamers are synthetic, single-stranded oligonucleotides, simply described as chemical antibodies, which can bind to diverse targets with high specificity and affinity. Aptamers are synthesized by the SELEX technique, and possess distinctive properties as small size (10-50 kDa), higher stability, easy manufacture and less immunogenicity. These oligonucleotides are easily degraded by nucleases, so require some important modifications like capping and incorporation of modified nucleotides. RNA aptamers can be modified chemically on 2' positions using -NH3, -F, -deoxy, or -OMe groups to enhance their nuclease resistance. Aptamers have been employed for multiple purposes, as direct drugs or aptamer-drug conjugates targeted against different diseased cells. Different aptamer-conjugated nanovehicles (e.g., micelles, liposomes, silica nano-shells) have been designed to transport diverse anticancer-drugs like doxorubicin and cisplatin in bulk to minimize systemic cytotoxicity. Some drug-loaded nanovehicles (up to 97% loading capacity) and conjugated with specific aptamer resulted in more than 60% tumor inhibition as compared to unconjugated drug-loaded nanovehicles which showed only 31% cancer inhibition. In addition, aptamers have been widely used in basic research, food safety, environmental monitoring, clinical diagnostics and therapeutics. Different FDA-approved RNA and DNA aptamers are now available in the market, used for the treatment of diverse diseases, especially cancer. These aptamers include Macugen, Pegaptanib, etc. Despite a good progress in aptamer use, the present-day chemotherapeutics and drug targeting systems still face great challenges. Here in this review article, we are discussing nucleic acid aptamers, preparation, role in the transportation of different nanoparticle vehicles and their applications as therapeutic agents.
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Affiliation(s)
- Khaled S. Allemailem
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, P.O. Box 6699, Buraydah, 51452 Saudi Arabia
| | - Ahmad Almatroudi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Mohammed A. Alsahli
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Ghaiyda Talal Basfar
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Faris Alrumaihi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Arshad Husain Rahmani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Amjad Ali Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, P.O. Box 6699, Buraydah, 51452 Saudi Arabia
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152
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Sabra S, Agwa MM. Lactoferrin, a unique molecule with diverse therapeutical and nanotechnological applications. Int J Biol Macromol 2020; 164:1046-1060. [PMID: 32707283 PMCID: PMC7374128 DOI: 10.1016/j.ijbiomac.2020.07.167] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/10/2020] [Accepted: 07/15/2020] [Indexed: 01/25/2023]
Abstract
Lactoferrin (LF) is a naturally glycoprotein with iron-binding properties and diverse biological applications including; antiviral, anti-inflammatory, antioxidant, anti-cancer and immune stimulating effects. In addition, LF was found to be an ideal nanocarrier for some hydrophobic therapeutics because of its active targeting potential due to overexpression of its receptor on the surface of many cells. Moreover, it was proven to be a good candidate for fabrication of nanocarriers to specifically deliver drugs in case of brain tumors owing to the capability of LF to cross the blood brain barrier (BBB). Consequently, it seems to be a promising molecule with multiple applications in the field of cancer therapy and nanomedicine.
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Affiliation(s)
- Sally Sabra
- Department of Biotechnology, Institute of Graduate studies and Research, Alexandria University, Alexandria 21526, Egypt.
| | - Mona M. Agwa
- Department of Chemistry of Natural and Microbial Products, Pharmaceutical and Drug Industries Research Division, National Research Centre, 33 El-Behooth St, Dokki, Giza 12311, Egypt,Corresponding authors
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153
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Zhang N, Tang M, Wen M, Cao Y, OuYang B. Expression, purification and characterization of TMCO1 for structural studies. Protein Expr Purif 2021; 179:105803. [PMID: 33253810 DOI: 10.1016/j.pep.2020.105803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/13/2020] [Accepted: 11/23/2020] [Indexed: 01/24/2023]
Abstract
Transmembrane and coiled-coil domains 1 (TMCO1) has a highly conserved amino acid sequence among species, indicating a critical role of TMCO1 in cell physiology. The deficiency of TMCO1 in humans is associated with cerebrofaciothoracic dysplasia (CFTD), glaucoma, osteogenesis and the occurrence of cancer. TMCO1 was recently identified as an endoplasmic reticulum (ER) Ca2+ load-activated Ca2+ (CLAC) release channel, which prevents ER Ca2+ overload and maintains calcium homeostasis in the ER. However, the structural basis of the molecular function of TMCO1 channel remains elusive. To determine the structure of TMCO1, we screened the expression of TMCO1 in Escherichia coli and insect cell expression systems. TMCO1 from Dictyostelium discoideum (DdTMCO1) was successfully expressed in Escherichia coli with a high yield. The pure recombinant protein was obtained by affinity chromatography and size exclusion chromatography. The solution NMR of DdTMCO1 in DPC micelles showed three α-helical transmembrane regions.
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154
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Lo YL, Huang XS, Chen HY, Huang YC, Liao ZX, Wang LF. ROP and ATRP fabricated redox sensitive micelles based on PCL-SS-PMAA diblock copolymers to co-deliver PTX and CDDP for lung cancer therapy. Colloids Surf B Biointerfaces 2020; 198:111443. [PMID: 33203600 DOI: 10.1016/j.colsurfb.2020.111443] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/25/2020] [Accepted: 10/28/2020] [Indexed: 12/15/2022]
Abstract
Combining dual drugs in one vehicle to cancer cells offers spatiotemporal localization of drug at the site of action, leading to synergistic therapeutic effects and reduced side effects. To improve pH/redox responsiveness to the tumor microenvironments for cancer therapy, a pH/redox-responsive micelle based on poly(ε-caprolactone)-SS-poly(methacrylic acid) (PCL-SS-PMAA) diblock copolymer was fabricated for dual drug delivery. The PCL-SS-PMAA was formulated into a core-shell micelle (PSPm) in an aqueous solution. The critical micelle concentration (CMC) values of PSPm were 7.94 × 10-3 mg mL-1 at pH 5.0 and 1.00 × 10-2 mg mL-1 at pH 7.4. The hydrodynamic diameters of PSPm were within 210-270 nm, depending on pH values. Changes in morphology and size of PSPm were clearly observed before and after exposure to a reducing agent. Paclitaxel (PTX) was encapsulated into the core and cisplatin (CDDP) was chelated on the shell of PSPm, with both PTX and CDDP being efficiently released from PSPm in the presence of a reducing agent in an acid condition. MTT and annexin V/propidium iodide dual staining results demonstrated that co-loading of CDDP and PTX into PSPm had a synergistic effect in killing lung cancer cells and exerted superior antitumor activity over the combination of single drug-loaded PSPm or the combination of free-CDDP and free-PTX at equivalent drug amounts. Hence, encapsulating the dual drugs into PSPm exhibits a synergistic effect for potential lung cancer therapy.
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Affiliation(s)
- Yu-Lun Lo
- Department of Medicinal & Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Xiao-Shan Huang
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Hsuan-Ying Chen
- Department of Medicinal & Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Yuan-Chun Huang
- Department of Medicinal & Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Zi-Xian Liao
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan.
| | - Li-Fang Wang
- Department of Medicinal & Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.
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155
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Charbe NB, Amnerkar ND, Ramesh B, Tambuwala MM, Bakshi HA, Aljabali AA, Khadse SC, Satheeshkumar R, Satija S, Metha M, Chellappan DK, Shrivastava G, Gupta G, Negi P, Dua K, Zacconi FC. Small interfering RNA for cancer treatment: overcoming hurdles in delivery. Acta Pharm Sin B 2020; 10:2075-2109. [PMID: 33304780 PMCID: PMC7714980 DOI: 10.1016/j.apsb.2020.10.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/24/2020] [Accepted: 10/08/2020] [Indexed: 12/11/2022] Open
Abstract
In many ways, cancer cells are different from healthy cells. A lot of tactical nano-based drug delivery systems are based on the difference between cancer and healthy cells. Currently, nanotechnology-based delivery systems are the most promising tool to deliver DNA-based products to cancer cells. This review aims to highlight the latest development in the lipids and polymeric nanocarrier for siRNA delivery to the cancer cells. It also provides the necessary information about siRNA development and its mechanism of action. Overall, this review gives us a clear picture of lipid and polymer-based drug delivery systems, which in the future could form the base to translate the basic siRNA biology into siRNA-based cancer therapies.
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Key Words
- 1,3-propanediol, PEG-b-PDMAEMA-b-Ppy
- 2-propylacrylicacid, PAH-b-PDMAPMA-b-PAH
- APOB, apolipoprotein B
- AQP-5, aquaporin-5
- AZEMA, azidoethyl methacrylate
- Atufect01, β-l-arginyl-2,3-l-diaminopropionicacid-N-palmityl-N-oleyl-amide trihydrochloride
- AuNPs, gold nanoparticles
- B-PEI, branched polyethlenimine
- BMA, butyl methacrylate
- CFTR, cystic fibrosis transmembrane conductance regulator gene
- CHEMS, cholesteryl hemisuccinate
- CHOL, cholesterol
- CMC, critical micelles concentration
- Cancer
- DC-Chol, 3β-[N-(N′,N′-dimethylaminoethane)carbamoyl]cholesterol
- DMAEMA, 2-dimethylaminoethyl methacrylate
- DNA, deoxyribonucleic acid
- DOPC, dioleylphosphatidyl choline
- DOPE, dioleylphosphatidyl ethanolamine
- DOTAP, N-[1-(2,3-dioleoyloxy)propyl]-N,N,N-trimethylammonium methyl-sulfate
- DOTMA, N-[1-(2,3-dioleyloxy)propy]-N,N,N-trimethylammoniumchloride
- DOX, doxorubicin
- DSGLA, N,N-dis-tearyl-N-methyl-N-2[N′-(N2-guanidino-l-lysinyl)] aminoethylammonium chloride
- DSPC, 1,2-distearoyl-sn-glycero-3-phosphocholine
- DSPE, 1,2-distearoyl-sn-glycero-3-phosphorylethanolamine
- DSPE-MPEG, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-2000] (ammonium salt)
- DSPE-PEG-Mal: 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[maleimide(polyethylene glycol)-2000] (mmmonium salt), EPR
- Liposomes
- Micelles
- N-acetylgalactosamine, HIF-1α
- Nanomedicine
- PE-PCL-b-PNVCL, pentaerythritol polycaprolactone-block-poly(N-vinylcaprolactam)
- PLA, poly-l-arginine
- PLGA, poly lactic-co-glycolic acid
- PLK-1, polo-like kinase 1
- PLL, poly-l-lysine
- PPES-b-PEO-b-PPES, poly(4-(phenylethynyl)styrene)-block-PEO-block-poly(4-(phenylethynyl)styrene)
- PTX, paclitaxel
- PiRNA, piwi-interacting RNA
- Polymer
- RES, reticuloendothelial system
- RGD, Arg-Gly-Asp peptide
- RISC, RNA-induced silencing complex
- RNA, ribonucleic acid
- RNAi, RNA interference
- RNAse III, ribonuclease III enzyme
- SEM, scanning electron microscope
- SNALP, stable nucleic acid-lipid particles
- SiRNA, short interfering rNA
- Small interfering RNA (siRNA)
- S–Au, thio‒gold
- TCC, transitional cell carcinoma
- TEM, transmission electron microscopy
- Tf, transferrin
- Trka, tropomyosin receptor kinase A
- USPIO, ultra-small superparamagnetic iron oxide nanoparticles
- UV, ultraviolet
- VEGF, vascular endothelial growth factor
- ZEBOV, Zaire ebola virus
- enhanced permeability and retention, Galnac
- hypoxia-inducible factor-1α, KSP
- kinesin spindle protein, LDI
- lipid-protamine-DNA/hyaluronic acid, MDR
- lysine ethyl ester diisocyanate, LPD/LPH
- messenger RNA, MTX
- methotrexate, NIR
- methoxy polyethylene glycol-polycaprolactone, mRNA
- methoxypoly(ethylene glycol), MPEG-PCL
- micro RNA, MPEG
- multiple drug resistance, MiRNA
- nanoparticle, NRP-1
- near-infrared, NP
- neuropilin-1, PAA
- poly(N,N-dimethylacrylamide), PDO
- poly(N-isopropyl acrylamide), pentaerythritol polycaprolactone-block-poly(N-isopropylacrylamide)
- poly(acrylhydrazine)-block-poly(3-dimethylaminopropyl methacrylamide)-block-poly(acrylhydrazine), PCL
- poly(ethylene glycol)-block-poly(2-dimethylaminoethyl methacrylate)-block poly(pyrenylmethyl methacrylate), PEG-b-PLL
- poly(ethylene glycol)-block-poly(l-lysine), PEI
- poly(ethylene oxide)-block-poly(2-(diethylamino)ethyl methacrylate)-stat-poly(methoxyethyl methacrylate), PEO-b-PCL
- poly(ethylene oxide)-block-poly(Ε-caprolactone), PE-PCL-b-PNIPAM
- poly(Ε-caprolactone), PCL-PEG
- poly(Ε-caprolactone)-polyethyleneglycol-poly(l-histidine), PCL-PEI
- polycaprolactone-polyethyleneglycol, PCL-PEG-PHIS
- polycaprolactone-polyethylenimine, PDMA
- polyethylenimine, PEO-b-P(DEA-Stat-MEMA
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Affiliation(s)
- Nitin Bharat Charbe
- Departamento de Quimica Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Sri Adichunchunagiri College of Pharmacy, Sri Adichunchunagiri University, BG Nagar, Karnataka 571418, India
- Corresponding authors.
| | - Nikhil D. Amnerkar
- Adv V. R. Manohar Institute of Diploma in Pharmacy, Nagpur, Maharashtra 441110, India
| | - B. Ramesh
- Sri Adichunchunagiri College of Pharmacy, Sri Adichunchunagiri University, BG Nagar, Karnataka 571418, India
| | - Murtaza M. Tambuwala
- School of Pharmacy and Pharmaceutical Science, Ulster University, Coleraine, Northern Ireland BT52 1SA, UK
| | - Hamid A. Bakshi
- School of Pharmacy and Pharmaceutical Science, Ulster University, Coleraine, Northern Ireland BT52 1SA, UK
| | - Alaa A.A. Aljabali
- Faculty of Pharmacy, Department of Pharmaceutics and Pharmaceutical Technology, Yarmouk University, Irbid 21163, Jordan
| | - Saurabh C. Khadse
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Dist. Dhule, Maharashtra 425 405, India
| | - Rajendran Satheeshkumar
- Departamento de Quimica Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Saurabh Satija
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411 Punjab, India
| | - Meenu Metha
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411 Punjab, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil 57000, Kuala Lumpur, Malaysia
| | - Garima Shrivastava
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi, New Delhi 110016, India
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Jaipur 302017, India
| | - Poonam Negi
- School of Pharmaceutical Sciences, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia
- School of Pharmaceutical Sciences, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute (HMRI) and School of Biomedical Sciences and Pharmacy, University of Newcastle, NSW 2308, Australia
| | - Flavia C. Zacconi
- Departamento de Quimica Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 4860, Chile
- Corresponding authors.
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156
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Bordallo E, Torneiro M, Lazzari M. Dissolution of amorphous nifedipine from micelle-forming carboxymethylcellulose derivatives. Carbohydr Polym 2020; 247:116699. [PMID: 32829827 DOI: 10.1016/j.carbpol.2020.116699] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/22/2020] [Accepted: 06/25/2020] [Indexed: 12/14/2022]
Abstract
We show that a novel amphiphilic graft copolymer combining the biodegradability and biocompatibility of oxidized carboxymethylcellulose (CMC) with that of hydrophilic poly(ethylene glycol) (PEG), and hydrophobic dodecylamine (DDA), improves the solubility and dissolution performance of nifedipine (NIF), considered as a model hydrophobic drug. The hydrophobic components of the graft copolymer have the multiple effect of favouring micelle formation and loading. At the same time, the interaction between the hydrophobic core and NIF has the secondary effect to suppress drug crystallization, favouring its dissolution, and to increase photostability. Oxidized CMC-g-PEG-DDA micelles reached values of drug concentration, loading capacity and encapsulation efficiency as high as 340 μg mL-1, 6.4 % and 34.1 %, respectively. Loaded micelles showed a good stability with a limited release profile at pH 1.2, whereas at pH 7.4 the swollen cores enable much higher and progressive release, that reaches 3.4 and 6.6 % after 3 and 5 h, respectively, corresponding to very competitive concentration of 34 and 66 μg mL-1.
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Affiliation(s)
- Eduardo Bordallo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Mercedes Torneiro
- Departamento de Química Orgánica, Facultade de Química, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Massimo Lazzari
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; Departamento de Química Física, Facultade de Química, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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157
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Zhang L, Yang S, Huang L, Ho PCL. Poly (ethylene glycol)-block-poly (D, L-lactide) (PEG-PLA) micelles for brain delivery of baicalein through nasal route for potential treatment of neurodegenerative diseases due to oxidative stress and inflammation: An in vitro and in vivo study. Int J Pharm 2020; 591:119981. [PMID: 33069896 DOI: 10.1016/j.ijpharm.2020.119981] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/27/2020] [Accepted: 10/11/2020] [Indexed: 02/06/2023]
Abstract
The application of baicalein (BE) in central nervous system (CNS) neurodegenerative diseases is hampered by its poor solubility and low oral bioavailability despite its neuroprotective effects. In this study, BE was encapsulated into poly (ethylene glycol)-block-poly (D, L-lactide) micelles (BE-MC) and administrated through nasal inhalation to enhance its brain distribution. BE-MC showed comparable in-vitro antioxidant activity to BE solution. Cytotoxicity study illustrated BE-MC could reduce BE's toxicity in SH-SY5Y cells and BV-2 cells. BE solution at concentration higher than 5 µM caused significant BV-2 cells' death after stimulation of LPS while BE-MC were non-toxic to cells at concentrations up to 50 µM. BE solution at 5 µM had no anti-inflammatory effects in BV-2 cells while BE-MC could reduce the inflammatory factor TNF-α at 5 µM and IL-6 at 20 µM significantly. Pharmacokinetic studies in C57BL/6 mice showed the absolute AUC values of BE in plasma and brain of BE-MC through nasal inhalation group were 5.09-fold and 1.50-fold higher than that of BE coarse powder through oral administration group at the same dose. Thus, our study indicated BE-MC administered nasally could be useful for treatment of CNS neurodegenerative diseases due to oxidative stress and inflammation.
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Affiliation(s)
- Li Zhang
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117583, Singapore; Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Shili Yang
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Lizhen Huang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China.
| | - Paul Chi-Lui Ho
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117583, Singapore; Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore 117543, Singapore.
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158
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Kim H, Han H, Jeong M, Han J, Park JH. Management of lymph node metastasis via local chemotherapy can prevent distant metastasis and improve survival in mice. J Control Release 2021; 329:847-57. [PMID: 33065097 DOI: 10.1016/j.jconrel.2020.10.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/14/2020] [Accepted: 10/09/2020] [Indexed: 01/08/2023]
Abstract
Management of lymph node metastasis (LNM) by conventional modalities such as radiotherapy and systemic chemotherapy exhibit limited LNM selectivity and therefore can cause off-target adverse events. While development of LNM-specific drug delivery systems has tremendous potential to provide a safer treatment modality and improve cancer treatment, precise assessment of therapeutic efficacy and implications has been challenging due to lack of a suitable preclinical model. Here, we established an experimental LNM model in mice by directly seeding cancer cells into a lymph node (LN), which developed spontaneous LNM-borne distant metastasis (DM) in the absence of a primary tumor. In the model, early, but not late, management of LNM before thereof tumor cells systemically disseminated could confer significant survival benefit, which suggests that time to LNM management is critical. Systematic comparative assessment of various local drug delivery systems revealed that a micellar formulation could achieve highly LNM-specific delivery of a chemotherapeutic agent, which was superior to systemic chemotherapy, effective at a very low dose, and safe. This study suggests not only that the experimental LNM model provides a useful preclinical model to study LNM management and its therapeutic implications but also that micelles are a promising drug delivery system for LNM management via local administration.
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159
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Rotem R, Micale A, Rizzuto MA, Migliavacca M, Giustra M, Salvioni L, Tasin F, Prosperi D, Colombo M. Modeling the interaction of amphiphilic polymer nanoparticles with biomembranes to Guide rational design of drug delivery systems. Colloids Surf B Biointerfaces 2020; 196:111366. [PMID: 32992287 DOI: 10.1016/j.colsurfb.2020.111366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 08/05/2020] [Accepted: 08/31/2020] [Indexed: 10/23/2022]
Abstract
Nanoparticle assisted drug delivery to the cytoplasm is limited by sequestration of nanoparticles in endosomes. Endosomal escape through polymer-induced membrane destabilization is one of a few well characterized mechanisms to overcome it. Aiming to utilize this method in vivo, it is necessary to understand how modulating the structural and chemical features of the polymer and the presence of proteins in biological fluids can affect this activity. Here, as a model for the endosomal membrane, we use the membrane of red blood cells to evaluate the membrane destabilization ability of a model amphiphilic polymer in the presence of blood plasma using a hemolysis assay. This allows determination of red blood cells membrane permeabilization through the quantification of hemoglobin leakage. Our results showed a strong inhibitory effect of plasma, and that hemolytic activity can be improved by chemical modification of the polymeric micelle, reducing its interaction with plasma proteins. Finally, a second mechanism of pH-induced direct diffusion is proposed and tested using an oil/water partitioning model. These results offer a body of knowledge to improve delivery of drugs across biological membranes using carefully designed polymeric nanocarriers.
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Affiliation(s)
- Rany Rotem
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Angelo Micale
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Maria Antonietta Rizzuto
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Martina Migliavacca
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Marco Giustra
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Lucia Salvioni
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Federico Tasin
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Davide Prosperi
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy; Nanomedicine Laboratory, ICS Maugeri S.p.A. SB, via S. Maugeri 10, 27100, Pavia, Italy.
| | - Miriam Colombo
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy.
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Garcia-Mendoza MDP, Espinosa-Pardo FA, Savoire R, Harscoat-Schiavo C, Cansell M, Subra-Paternault P. Improvement of the oxidative stability of camelina oil by enrichment with phospholipid-quercetin formulations. Food Chem 2020; 341:128234. [PMID: 33038773 DOI: 10.1016/j.foodchem.2020.128234] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/17/2020] [Accepted: 09/25/2020] [Indexed: 10/23/2022]
Abstract
Camelina oil (Coil) contains 50-60% of polyunsaturated fatty acids which are susceptible to oxidation. In this work, addition of phospholipids (0-20 mg/g) was assessed to improve the solubility of quercetin in Coil and enhance its oxidative stability. Results showed that the solubility of quercetin in Coil increased up to 7.7-fold by phospholipid addition. The solubility of quercetin in Coil was correlated to the phospholipid concentration and reached a maximum value of 1 298 μg/g. The addition of phospholipid-quercetin formulations increased the Coil stability, measured at 60 °C, from 24 h up to 115 h. Coil saturated with only quercetin (168 μg/g) did not significantly increase Coil stability, whereas phospholipids alone extended the oxidation lag time up to 40 h. This work successfully developed a solvent-free method for improving the solubility of quercetin in Coil and enhance its oxidative stability.
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Affiliation(s)
| | | | - Raphaëlle Savoire
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, F-33600 Pessac, France.
| | | | - Maud Cansell
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, F-33600 Pessac, France.
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Raychaudhuri R, Pandey A, Hegde A, Abdul Fayaz SM, Chellappan DK, Dua K, Mutalik S. Factors affecting the morphology of some organic and inorganic nanostructures for drug delivery: characterization, modifications, and toxicological perspectives. Expert Opin Drug Deliv 2020; 17:1737-1765. [PMID: 32878492 DOI: 10.1080/17425247.2020.1819237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Introduction: In this review, we aim to highlight the impact of various processes and formulation variables influencing the characteristics of certain surfactant-based nanoconstructs for drug delivery. Areas covered: The review includes the discussion on processing parameters for the preparation of nanoconstructs, especially those made up of surfactants. Articles published in last 15 years (437) were reviewed, 381 articles were selected for data review and most appropriate articles (215) were included in article. Effect of variables such as surfactant concentration and type, membrane additives, temperature, and pH-dependent transitions on morphology has been highlighted along with effect of shape on nanoparticle uptake by cells. Various characterization techniques explored for these nanostructures with respect to size, morphology, lamellarity, distribution, etc., and a separate section on polymeric vesicles and the influence of block copolymers, type of block copolymer, control of block length, interaction of multiple block copolymers on the structure of polymersomes and chimeric nanostructures have been discussed. Finally, applications, modification, degradation, and toxicological aspects of these drug delivery systems have been highlighted. Expert opinion: Parameters influencing the morphology of micelles and vesicles can directly or indirectly affect the efficacy of small molecule cellular internalization as well as uptake in the case of biologicals.[Figure: see text].
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Affiliation(s)
- Ruchira Raychaudhuri
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal, Karnataka State, India
| | - Abhjieet Pandey
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal, Karnataka State, India
| | - Aswathi Hegde
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal, Karnataka State, India
| | - Shaik Mohammad Abdul Fayaz
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education , Manipal, Karnataka State, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University , Bukit Jalil, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney , Broadway, NSW, Australia
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal, Karnataka State, India
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162
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Han X, Guo X, Shi Y, Li W, Zhang G. Novel amino-β-Cyclodextrins containing polymers: Fabrication, characterization, and biological evaluation. Colloids Surf B Biointerfaces 2020; 196:111311. [PMID: 32827948 DOI: 10.1016/j.colsurfb.2020.111311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 07/31/2020] [Accepted: 08/06/2020] [Indexed: 11/28/2022]
Abstract
In this study, poly (mPEGMA-co-MAA) (PA) based on monomers of mPEGMA and MAA were synthesized, and different amino-β-Cyclodextrins with various alkyl chains were conjugated to PA through carbodiimide-mediated coupling reactions. The obtained poly (mPEGMA-co-MAA-g-amino-β-CD) (PA-g-amino-β-CD) was characterized by FTIR, NMR and TGA. The fluorescence technique was used to investigate the micellization of PA-g-amino-β-CDs. The results indicated that these polymers could self-assemble into nano-micelles in water, and PA-g-HDA-β-CD possessed the lowest CMC value due to its long alkyl chains. In addition, the PA-g-HDA-β-CD micelles were in spherical shapes with the diameter of 78.5 ± 0.6 nm.The release of the model drug from PA-g-HDA-β-CD micelles was increased as the pH reduced from 7.4-5.5 at 37 °C. Cytotoxicity and cellular uptake experiments were performed in HepG2, which showed that the cargo-free PA-g-HDA-β-CD micelles did not have obvious cytotoxicity and were mainly distributed in the cytoplasm of HepG2 cells by endocytosis. Moreover, the study about in vivo distribution of the experimental rats indicated that the accumulation of PA-g-HDA-β-CD micelles mainly happened in the liver. Therefore, the novel amino-β-CD containing polymers exhibit good potential applications in drug delivery system.
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Affiliation(s)
- Xiao Han
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
| | - Xin Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Yongli Shi
- College of Pharmacy, Xinxiang Medical University, 453003, Xinxiang, China
| | - Wenhao Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Guoquan Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
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163
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Rathod V, Stagner WC, Gajera B, Haware RV. Hybridized nanoamorphous micellar dispersion using a QbD-DM 3 linked rational product design strategy for ritonavir: A BCS IV drug. Int J Pharm 2020; 588:119727. [PMID: 32758594 DOI: 10.1016/j.ijpharm.2020.119727] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/28/2020] [Accepted: 07/31/2020] [Indexed: 11/17/2022]
Abstract
A QbD-DM3 linked rational product design strategy was adopted to create a hybridized ritonavir (RTV, BCS Class IV) nanoamorphous micellar dispersion (RTV-NAD). A DM3 research strategy was employed in conjunction with the quality-by-design spaces, and quality target product profile to link the critical material attributes and critical process parameters to the quality target product profile's critical product attributes QbD elements. A Box-Behnken design and multivariate analysis using multiple linear regression and partial least squares provided data analysis. The hybridized strategy leveraged three different mechanisms to increase RTV's solubility and four mechanisms to increase its dissolution rate. Statistically significant models were generated for critical product attributes: particle size (p = 0.0000, R2 adjusted = 0.9513), polydispersity index (p = 0.0002, R2 adjusted = 0.6398), zeta potential (p = 0.0000, R2 adjusted = 0.9744), and drug loading on a dry basis (p = 0.0000, R2 adjusted = 0.9951). The impact of drug concentration, Soluplus® concentration, and solvent:antisolvent ratio, their interactions and square effects on the critical product attributes were assessed by multivariate analysis. The QbD optimal formulation was determined for RTV-NAD. Multiple linear regression and partial least squares computational predictability was evaluated using three verification batches. The prediction error for critical product attributes was <5%. RTV-NAD and ritonavir microsuspension were characterized by x-ray diffraction and in-vitro dissolution studies. X-ray diffraction confirmed the amorphous nature of the RTV-NAD. RTV-NAD exhibited a 'spring-hover' dissolution profile at pH 4.5. At pH 6.8, a classic 'spring-parachute' dissolution behavior was observed.
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Affiliation(s)
- Vishal Rathod
- Division of Pharmaceutics Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - William C Stagner
- Campbell University College of Pharmacy & Health Sciences, Buies Creek, NC 27506, USA
| | | | - Rahul V Haware
- Division of Pharmaceutics Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA.
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164
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Puig-Rigall J, Blanco-Prieto MJ, Radulescu A, Dreiss CA, González-Gaitano G. Morphology, gelation and cytotoxicity evaluation of D-α-Tocopheryl polyethylene glycol succinate (TPGS) - Tetronic mixed micelles. J Colloid Interface Sci 2020; 582:353-363. [PMID: 32858401 DOI: 10.1016/j.jcis.2020.08.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/22/2020] [Accepted: 08/02/2020] [Indexed: 01/01/2023]
Abstract
HYPOTHESIS The combination of polymeric surfactants into mixed micelles is expected to improve properties relevant to their use in drug delivery, such as micellar size, gelation, and toxicity. We investigated synergistic effects in mixtures of D-α-Tocopheryl polyethylene glycol succinate (TPGS), an FDA-approved PEGylated derivative of vitamin E, and Tetronic surfactants, pH-responsive and thermogelling polyethylene oxide (PEO)-polypropylene oxide (PPO) 4-arm block copolymers. We hypothesized that mixed micelles would form under specific conditions and provide a handle to tune formulation characteristics. EXPERIMENTS We examined the morphology of the self-assembled structures in mixtures of TPGS with two Tetronic: T1107 and T908, using a combination of dynamic light scattering (DLS), small-angle neutron scattering (SANS), NMR spectroscopy (NOESY and diffusion NMR) and oscillatory rheology, over a range of compositions, temperatures and pH. Cell viability was assessed in NIH/3T3 fibroblasts. FINDINGS The combination of TPGS with either of the two Tetronic produces spherical core-shell micelles that comprise both surfactants in their structure (mixed micelles). T1107 unimers incorporate into TPGS aggregates below the critical micelle temperature of the poloxamine, while mixed micelles only form under limited conditions with T908. At high concentration/temperature, small proportions of TPGS extend the gel phase, more markedly with T1107, with similar elastic moduli (30-50 kPa) and a BCC crystalline structure. Cell viability of NIH/3T3 fibroblasts grown in the hydrogels increases significantly when the poloxamine gels are doped with TPGS, making the combination of poloxamines and TPGS a promising platform for drug delivery.
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Affiliation(s)
- Joan Puig-Rigall
- Departamento de Química, Universidad de Navarra, 31080 Pamplona, Spain
| | - María J Blanco-Prieto
- Departamento de Tecnología y Química Farmacéutica, Universidad de Navarra, 31080 Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra, IdiSNA, Irunlarrea 3, 31008 Pamplona, Spain.
| | - Aurel Radulescu
- Jülich Center for Neutron Science, JCNS at Heinz Maier-Leibnitz Zentrum MLZ, Forschungszentrum Jülich GmbH, Lichtenbergstraße 1, 85747 Garching, Germany
| | - Cécile A Dreiss
- Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, UK.
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165
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Ji M, Liu G, Cui Y, Zhao P. Safety and efficacy concerns of modern strategies of local anesthetics delivery. 3 Biotech 2020; 10:333. [PMID: 32656066 DOI: 10.1007/s13205-020-02309-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 06/18/2020] [Indexed: 10/23/2022] Open
Abstract
In the last few decades, several formulations have evolved to realize better efficacy of administered anesthesia. These innovative formulations have facilitated surgeons to perform operations under purely local anesthesia, which provides extra protection and comfort to patients. Ease of delivery of local anesthesia is the need of the current generation, because some of the standard procedures are performed without the use of any sedative agent. Therefore, we are presenting here the various approaches of administration of local anesthetics by the surgeons. To construct a comprehensive report on various methods of anesthesia, we followed a systematic literature search of bibliographic databases of published articles recently in the international journals and publishers of repute. A comprehensive study of several reports of the field indicates that there are significant progresses towards developing novel formulations of anesthesia drugs as well as strategies of delivery. Among formulations, nanoparticle-based delivery approaches, including polymeric, liposomal, and micellar structures, have offered the much needed efficacy with low toxicity. Therefore, several of such techniques are at various stages of clinical trials. Nanotechnology-based delivery approaches have significantly emerged in recent past due to the low systemic toxicity and better efficacy of the nonconventional local anesthetics. The other methods of local anesthesia delivery such as transdermal, magnetophoresis, electrophoresis, and iontophoresis are frequently used due to them being minimally invasive and locally effective. Therefore, the combination of the nanotechnological methods with above mentioned techniques would significantly enhance the overall process of local anesthesia delivery and efficacy.
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166
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Romana B, Hassan MM, Sonvico F, Garrastazu Pereira G, Mason AF, Thordarson P, Bremmell KE, Barnes TJ, Prestidge CA. A liposome-micelle-hybrid (LMH) oral delivery system for poorly water-soluble drugs: Enhancing solubilisation and intestinal transport. Eur J Pharm Biopharm 2020; 154:338-347. [PMID: 32739535 DOI: 10.1016/j.ejpb.2020.07.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/14/2020] [Accepted: 07/21/2020] [Indexed: 12/31/2022]
Abstract
A novel liposome-micelle-hybrid (LMH) carrier system was developed as a superior oral drug delivery platform compared to conventional liposome or micelle formulations. The optimal LMH system was engineered by encapsulating TPGS micelles in the aqueous core of liposomes and its efficacy for oral delivery was demonstrated using lovastatin (LOV) as a model poorly soluble drug with P-gp (permeability glycoprotein) limited intestinal absorption. LOV-LMH was characterised as unilamellar, spherical vesicles encapsulating micellar structures within the interior aqueous core and showing an average diameter below 200 nm. LMH demonstrated enhanced drug loading, water apparent solubility and extended/controlled release of LOV compared to conventional liposomes and micelles. LMH exhibited enhanced LOV absorption and transportation in a Caco-2 cell monolayer model of the intestine by inhibiting the P-gp transporter system compared to free LOV. The LMH system is a promising novel oral delivery approach for enhancing bioavailability of poorly water-soluble drugs, especially those presenting P-gp effluxes limited absorption.
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Affiliation(s)
- Bilquis Romana
- School of Chemistry, The Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, NSW 2052, Australia; University of South Australia, Clinical and Health Sciences, Adelaide, South Australia 5000, Australia
| | - Md Musfizur Hassan
- School of Chemistry, The Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Fabio Sonvico
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Gabriela Garrastazu Pereira
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Alex F Mason
- School of Chemistry, The Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Pall Thordarson
- School of Chemistry, The Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Kristen E Bremmell
- University of South Australia, Clinical and Health Sciences, Adelaide, South Australia 5000, Australia
| | - Timothy J Barnes
- University of South Australia, Clinical and Health Sciences, Adelaide, South Australia 5000, Australia
| | - Clive A Prestidge
- University of South Australia, Clinical and Health Sciences, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia.
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167
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Yao H, Zhao J, Wang Z, Lv J, Du G, Jin Y, Zhang Y, Song S, Han G. Enhanced anticancer efficacy of cantharidin by mPEG-PLGA micellar encapsulation: An effective strategy for application of a poisonous traditional Chinese medicine. Colloids Surf B Biointerfaces 2020; 196:111285. [PMID: 32771818 DOI: 10.1016/j.colsurfb.2020.111285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/11/2020] [Accepted: 07/27/2020] [Indexed: 02/04/2023]
Abstract
Cantharidin (CTD), the main active component of a poisonous traditional Chinese medicine (PTCM) Mylabris, exhibits highly effective therapy of hepatocellular carcinoma (HCC); however, the severe toxicity of CTD on the digestive and urinary systems prevents its clinical application. Here, CTD-loaded micelles (mPEG-PLGA-CTD) were prepared for enhancement of the antitumor efficacy and reduction of the toxicity of CTD. mPEG-PLGA-CTD comprised uniform spherical particles with particle size of 25.32 ± 1.25 nm and zeta potential of -5.70 ± 0.76 mV, exhibiting good stability and biocompatibility. mPEG-PLGA-CTD showed high toxicity on HepG2 cells by improving apoptosis and inhibiting protein phosphatases 2A (PP2A) compared to the low toxicity on l-02 hepatocytes. Intravenous injection of mPEG-PLGA-CTD led to a long circulation half-life of drugs, enhanced drug accumulation in the tumor tissues, and reduced drug accumulation in the other organs (e.g., the kidney) due to the enhanced permeability and retention effect compared to injection of free CTD; more importantly, the highly efficient antitumor effect and low systemic toxicity were achieved. A micellar formulation is very useful for enhancement of therapeutic efficacy and reduction of systemic toxicity of PTCMs.
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Affiliation(s)
- Hailu Yao
- Institute of Pharmacy, College of Pharmacy, Henan University, Kaifeng, 475004, China
| | - Junli Zhao
- Institute of Pharmacy, College of Pharmacy, Henan University, Kaifeng, 475004, China
| | - Zhen Wang
- Institute of Pharmacy, College of Pharmacy, Henan University, Kaifeng, 475004, China
| | - Jinwei Lv
- Institute of Pharmacy, College of Pharmacy, Henan University, Kaifeng, 475004, China
| | - Gangjun Du
- Institute of Pharmacy, College of Pharmacy, Henan University, Kaifeng, 475004, China
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Yu Zhang
- Institute of Pharmacy, College of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Shiyong Song
- Institute of Pharmacy, College of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Guang Han
- Institute of Pharmacy, College of Pharmacy, Henan University, Kaifeng, 475004, China.
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168
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Domiński A, Krawczyk M, Konieczny T, Kasprów M, Foryś A, Pastuch-Gawołek G, Kurcok P. Biodegradable pH-responsive micelles loaded with 8-hydroxyquinoline glycoconjugates for Warburg effect based tumor targeting. Eur J Pharm Biopharm 2020; 154:317-329. [PMID: 32717390 DOI: 10.1016/j.ejpb.2020.07.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/09/2020] [Accepted: 07/20/2020] [Indexed: 12/29/2022]
Abstract
Biodegradable triblock copolymer poly(ethylene glycol)-b-polycarbonate-b-oligo([R]-3-hydroxybutyrate) was prepared via metal-free ring-opening polymerization of ketal protected six-membered cyclic carbonate followed by esterification with bacterial oligo([R]-3-hydroxybutyrate) (oPHB). Amphiphilic triblock copolymer self-organizes into micelles with a diameter of ~25 nm. Acid-triggered hydrolysis of ketal groups to two hydroxyl groups causes an increase in hydrophilicity of the hydrophobic micelle core, resulting in the micelles swell and drug release. oPHB was added as core-forming block to increase the stability of prepared micelles in all pH (7.4, 6.4, 5.5) studied. Doxorubicin and 8-hydroxyquinoline glucose- and galactose conjugates were loaded in the micelles. In vitro drug release profiles in PBS buffers with different pH showed that a small amount of loaded drug was released in PBS at pH 7.4, while the drug was released much faster at pH 5.5. MTT assay showed that the blank micelles were non-toxic to different cell lines, while glycoconjugates-loaded micelles, showed significantly increased ability to inhibit the proliferation of MCF-7 and HCT-116 cells compared to free glycoconjugates. The glycoconjugation of anti-cancer drugs and pH-responsive nanocarriers have separately shown great potential to increase the tumor-targeted drug delivery efficiency. The combination of drug glycoconjugation and the use of pH-responsive nanocarrier opens up new possibilities to develop novel strategies for efficient tumor therapy.
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Affiliation(s)
- Adrian Domiński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland
| | - Monika Krawczyk
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; Biotechnology Centre, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Tomasz Konieczny
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland
| | - Maciej Kasprów
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland
| | - Aleksander Foryś
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland
| | - Gabriela Pastuch-Gawołek
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; Biotechnology Centre, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Piotr Kurcok
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland.
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169
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He L, Xu J, Cheng X, Sun M, Wei B, Xiong N, Song J, Wang X, Tang R. Hybrid micelles based on Pt (IV) polymeric prodrug and TPGS for the enhanced cytotoxicity in drug-resistant lung cancer cells. Colloids Surf B Biointerfaces 2020; 195:111256. [PMID: 32682273 DOI: 10.1016/j.colsurfb.2020.111256] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/21/2020] [Accepted: 07/10/2020] [Indexed: 12/17/2022]
Abstract
Multidrug resistance (MDR) is a primary cause of failure in oncotherapy and interest is growing in the design of multi-stimuli responsive nano-carriers to synergistically deliver chemotherapeutic agents and P-gp inhibitors to reverse MDR. The hybrid micelles based on a Platinum (IV)-coordinate polymeric prodrugs and TPGS were developed to improve chemotherapy and reduce side effects. The pH/redox dual-sensitive polymers were synthesized by condensation polymerization using ortho ester monomer and diamminedichlorodisuccinatoplatinum (DSP). The hybrid micelles possessed uniform size (38 nm) and displayed good stability in various physiological conditions. In contrast, in vitro drug release profiles indicated that these micelles could be completely depolymerized under acidic and reducing environment, thereby more than 80 % cisplatin were released within 12 h at pH 5.0 plus 10 mM DTT. More importantly, a large amount of TPGS released simultaneously could effectively inhibit the function of drug efflux pumps, which significantly enhanced the cytotoxicity of cisplatin against A549/DDP cells. The growth inhibition rate of micelles on A549/DDP multicellular spheroids was 79.5 %, while that of free cisplatin was only 6.8 %. Therefore, these hybrid micelles are promising in overcoming tumor MDR and worth doing further research in vivo and extend to other therapeutic agents.
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170
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Aygün S, Beşer BM, Acar M, Meral K. Photophysical Properties of Some Fluorescent Dyes in SDS Micellar Solutions. J Fluoresc 2020; 30:849-57. [PMID: 32447615 DOI: 10.1007/s10895-020-02553-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 05/11/2020] [Indexed: 10/24/2022]
Abstract
Photophysical properties of fluorescent dyes such as Safranin T, Acridine Orange, Pyronin B and Pyronin Y in SDS micelles were examined by using spectroscopic techniques. Firstly, spherical micelles in deionized water were prepared with Sodium Dodecyl Sulfate (SDS) surfactants and they were transformed into their layered structures (lamellar micelles) by the aid of NaCl (sodium chloride). SEM studies confirmed the transformation of SDS micelles from the spherical structures to the lamellar structures. Secondly, absorption and fluorescence characteristics of the dyes in deionized water and the SDS micelles aqueous solutions were characterized in the presence of various NaCl concentrations at above the critical micelle concentration (CMC). Moreover, the photophysical properties of the dyes in various media were discussed by fluorescence quantum yield and fluorescence lifetime data. The micellar structures called a mimetic membrane system changed the photophysical properties of the dyes compared to those in deionized water.
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171
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Pétronille R, Bernard D, Guillaume LG, Victoire V, Thomas F, Jérôme C, Eloïse DC, Gérard P, Sylvie S, Audrey S, François L, Suzette D, Muriel P, Maxime A. Comparative analysis of docetaxel: physical and chemical characterisation of Taxotère® and generics. Eur J Cancer 2020; 135:183-191. [PMID: 32599408 DOI: 10.1016/j.ejca.2020.04.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/01/2020] [Indexed: 02/02/2023]
Abstract
Several cases of fatal enterocolitis have been described in association with the use of docetaxel (DTX), and this increase in adverse events has been concomitant with a change in formulation. Indeed in 2010, a new DTX-based presentation has been introduced in the form of a single ready-to-use vial by Sanofi-Aventis, presentation also used for generics. In this study, different available formulations were compared (Sanofi 2 vials, Sanofi 1 vial, Accord Healthcare, Kabi, Hospira) in terms of composition compliance with control specifications and simulated micelle behaviour to try to determine what could be the potential causes of this problem. This work had permitted to show that all the tested products complied with specifications in terms of dosage and purity. Variations in the composition of polysorbate 80 (PS80) have been observed but are probably too small to be responsible for the toxicity found in patients. However, we identified a difference in micelle size and release kinetics probably because of doubling concentration of ethanol in new formulation. As a result, we emphasised the importance in the case of DTX of conducting bioequivalence studies as expected in European Medicines Agency (EMA) guidance to ensure patient safety, even though these formulation changes might seem minor. Therefore, further studies are needed to explore the potential role of ethanol, PS80 and the unbound fraction of DTX in the development of enterocolitis in patients treated with DTX.
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Affiliation(s)
- Roy Pétronille
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France.
| | - Do Bernard
- Pharmacy Department, Hôpital Henri Mondor, Créteil, F-94010, France; University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 Rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France
| | | | | | - Fleury Thomas
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
| | - Conq Jérôme
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
| | - Da Costa Eloïse
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
| | - Pierron Gérard
- Centre National de La Recherche Scientifique, UMR-8122, Institut Gustave Roussy, Villejuif 94805, France
| | - Souquere Sylvie
- Centre National de La Recherche Scientifique, UMR-8122, Institut Gustave Roussy, Villejuif 94805, France
| | - Solgadi Audrey
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 Rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France
| | - Lemare François
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
| | - Delaloge Suzette
- Department of Cancer Medicine, Gustave Roussy, 114 Rue Edouard Vaillant, 94800 Villejuif, France
| | - Paul Muriel
- Pharmacy Department, Hôpital Henri Mondor, Créteil, F-94010, France
| | - Annereau Maxime
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
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172
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Simon L, Marcotte N, Devoisselle JM, Begu S, Lapinte V. Recent advances and prospects in nano drug delivery systems using lipopolyoxazolines. Int J Pharm 2020; 585:119536. [PMID: 32531447 DOI: 10.1016/j.ijpharm.2020.119536] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/05/2020] [Accepted: 06/06/2020] [Indexed: 11/29/2022]
Abstract
Facing the growing demand in nano drug delivery systems (nDDS), hybrid excipients based on natural molecules and well-defined synthetic polymers are intensively investigated. Lipopolyoxazolines (LipoPOx) composed of a polyoxazoline block (POx) and a lipid or lipid-like derivative are detailed in this review. The nature of lipids used, the route to synthesize LipoPOx and their advantages for the formulation of drugs are reported. The place of POx family in nanomedicine is discussed compared to PEG, considered as the gold standard of hydrophilic polymers. LipoPOx nanoformulations including liposomes, mixed micelles, lipid nanocapsules are provided alongside discussion of the nDDS for intravenous or topical administration.
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Affiliation(s)
- L Simon
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - N Marcotte
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | | | - S Begu
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - V Lapinte
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
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173
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Abstract
Assessing the ligand-binding properties of OBPs and CSPs is essential for understanding their physiological function. It also provides basic information when these proteins are used as biosensing elements for instrumental measurement of odors. Although different approaches have been applied in the past to evaluate the affinity of receptors and soluble binding proteins to their ligands, using a fluorescent reporter represents the method of choice for OBPs and CSPs. It offers the advantages of working at the equilibrium, being simple, fast and inexpensive, without requiring the use of radioactive tracers. However, as an indirect method, the fluorescence competitive binding approach presents drawbacks and sometimes requires an elaborate analysis to explain unexpected results. Here, after a brief survey of the different approaches to evaluate affinity constants, we focus on the fluorescence binding assay as applied to OBPs and CSPs, discussing situations that may require closer inspection of the results.
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Affiliation(s)
- Chiara D'Onofrio
- AIT Austrian Institute of Technology GmbH, Biosensor Technologies, Tulln, Austria
| | - Valeriia Zaremska
- AIT Austrian Institute of Technology GmbH, Biosensor Technologies, Tulln, Austria
| | - Jiao Zhu
- AIT Austrian Institute of Technology GmbH, Biosensor Technologies, Tulln, Austria; Faculty of Biology, Institute of Molecular Physiology, Johannes Gutenberg-Universität, Mainz, Germany
| | - Wolfgang Knoll
- AIT Austrian Institute of Technology GmbH, Biosensor Technologies, Tulln, Austria; CEST Competence Center for Electrochemical Surface Technology, Tulln, Austria
| | - Paolo Pelosi
- AIT Austrian Institute of Technology GmbH, Biosensor Technologies, Tulln, Austria.
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174
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Garg C, Priyam A, Kumar P, Sharma AK, Gupta A. In Vitro Assessment of Core-Shell Micellar Nanostructures of Amphiphilic Cationic Polymer-Peptide Conjugates as Efficient Gene and Drug Carriers. J Pharm Sci 2020; 109:2847-53. [PMID: 32473212 DOI: 10.1016/j.xphs.2020.05.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/18/2020] [Indexed: 11/21/2022]
Abstract
Design and development of biocompatible, biodegradable and stable dual delivery systems for drug and gene is the need of the hour. Here, we have designed a strategy to develop carrier systems consisting of above mentioned properties by (a) incorporating an unnatural amino acid in the peptide backbone, and b) conjugating a low molecular weight cationic polymer (polyethylenimine, PEI) for incorporating cationic charge. Using this strategy, we have synthesized a small series of Boc-FΔF-AH-polyethylenimine conjugates by varying the concentration of Boc-FΔF-aminohexanoic acid, viz., PP-1, PP-2 and PP-3. These conjugates self-assembled in aqueous medium to form micelles in the size range of ~144-205 nm with zeta potential ~ +7.9-14.2 mV bearing core-shell type of conformation. Positive surface of the micelles facilitated the binding of plasmid DNA as well as transportation inside the cells. The hydrophobic core of the nanostructures helped in the encapsulation of the hydrophobic drug molecule, which was then got released in a controlled manner. DNA complexes of the conjugates were not only found non-toxic but also exhibited higher transfection efficacy than the native polymer and Lipofectamine. Altogether, these nanostructures are capable of delivering a drug and a gene simultaneously in vitro and could be used as next-generation delivery agents.
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175
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Shi X, Amarnath Praphakar R, Suganya K, Murugan M, Sasidharan P, Rajan M. In vivo approach of simply constructed pyrazinamide conjugated chitosan-g-polycaprolactone micelles for methicillin resistance Staphylococcus aureus. Int J Biol Macromol 2020; 158:636-647. [PMID: 32353501 DOI: 10.1016/j.ijbiomac.2020.04.214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/03/2020] [Accepted: 04/24/2020] [Indexed: 11/24/2022]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is an extensive origin of nosocomial infections that are very much challenging as well as complicated to eradicate mostly due to their strong resistance against all existing antibiotic therapies. Here the chitosan-grafted-polycaprolactone/maleic anhydride-pyrazinamide (CS-g-PCL/MA-PZA) polymeric drug carrier constructed via dialysis for anti-MRSA drugs like rifampicin (RF) and pyrazinamide (PZA) delivery. Nearly 200 nm size of the spherical particle with -20.04 mV of zeta potential observed. The cumulative PZA and RF releases from the carrier were observed 83.25% and 76.54% respectively in pH 5.5, and the in vitro drug release profile demonstrates that the fabricated micelle was pH-responsive. For the intestinal colonization, an in vivo assay performed using C. elegans, and the CS-g-PCL/MA-PZA/RF micelles treated worms generally belong to the weakly colonized category. Therefore, the study revealed that CS-g-PCL/MA-PZA/RF micelle could be a promising approach for therapeutic applications to achieve efficient anti-MRSA drug delivery.
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Affiliation(s)
- Xiaoxin Shi
- Department of Internal Medicine, Fuwai Central China Cardiovascular Hospital, Zhengzhou City, Henan Province 450000, China
| | - Rajendran Amarnath Praphakar
- Biomaterials in Medicinal Chemistry Laboratory, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, India
| | - Kannan Suganya
- Department of Microbial Technology, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu 625021, India
| | - Marudhamuthu Murugan
- Department of Microbial Technology, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu 625021, India
| | - Perumal Sasidharan
- Department of Plant Biotechnology, School of Biotechnology, Madurai Kamaraj University, Madurai, Tamil Nadu 625021, India
| | - Mariappan Rajan
- Biomaterials in Medicinal Chemistry Laboratory, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, India.
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176
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Silindir-Gunay M, Ozer AY. 99mTc-radiolabeled Levofloxacin and micelles as infection and inflammation imaging agents. J Drug Deliv Sci Technol 2020; 56:101571. [PMID: 32288835 PMCID: PMC7104933 DOI: 10.1016/j.jddst.2020.101571] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 01/01/2023]
Abstract
Easy and early detection of infection and inflammation is essential for early and effective treatment. In this study, PEGylated micelles were designed and both micelles and Levofloxacin were radiolabeled with 99mTcO4 - to develop potential radiotracers for detection of infection/inflammation. Radiolabeling efficiency, in vitro stability and bacterial binding of 99mTc-Levofloxacin and 99mTc-micelles were compared. The aim of this study is to formulate and compare 99mTc-Levofloxacin and 99mTc-micelles as infection and inflammation agents having different mechanisms for the accumulation at infection and inflammation site. PEGylated micelles were designed with a particle size of 80 ± 0.7 nm and proper characterization properties. High radiolabeling efficiency was achieved for 99mTc-Levofloxacin (96%) and 99mTc-micelles (87%). The radiolabeling efficiency was remained stable with some insignificant alterations for both radiotracers at 25 °C for 24 h. Although in vitro bacterial binding of 99mTc-levofloxacine was higher than 99mTc-micelles, 99mTc-micelles may also be evaluated potential agent due to long circulation and passive accumulation mechanisms at infection/inflammation site. Both radiopharmaceutical agents exhibit potential results in design, characterization, radiolabeling efficiency and in vitro bacterial binding point of view.
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Affiliation(s)
- Mine Silindir-Gunay
- Hacettepe University, Faculty of Pharmacy, Department of Radiopharmacy, 06100, Sıhhiye, Ankara, Turkey
| | - Asuman Yekta Ozer
- Hacettepe University, Faculty of Pharmacy, Department of Radiopharmacy, 06100, Sıhhiye, Ankara, Turkey
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177
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Nagaraj R, Stack T, Yi S, Mathew B, Shull KR, Scott EA, Mathew MT, Bijukumar DR. High Density Display of an Anti-Angiogenic Peptide on Micelle Surfaces Enhances Their Inhibition of αvβ3 Integrin-Mediated Neovascularization In Vitro. Nanomaterials (Basel) 2020; 10:E581. [PMID: 32235802 PMCID: PMC7153711 DOI: 10.3390/nano10030581] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 02/07/2023]
Abstract
Diabetic retinopathy (DR), Retinopathy of Pre-maturity (ROP), and Age-related Macular Degeneration (AMD) are multifactorial manifestations associated with abnormal growth of blood vessels in the retina. These three diseases account for 5% of the total blindness and vision impairment in the US alone. The current treatment options involve heavily invasive techniques such as frequent intravitreal administration of anti-VEGF (vascular endothelial growth factor) antibodies, which pose serious risks of endophthalmitis, retinal detachment and a multitude of adverse effects stemming from the diverse physiological processes that involve VEGF. To overcome these limitations, this current study utilizes a micellar delivery vehicle (MC) decorated with an anti-angiogenic peptide (aANGP) that inhibits αvβ3 mediated neovascularization using primary endothelial cells (HUVEC). Stable incorporation of the peptide into the micelles (aANGP-MCs) for high valency surface display was achieved with a lipidated peptide construct. After 24 h of treatment, aANGP-MCs showed significantly higher inhibition of proliferation and migration compared to free from aANGP peptide. A tube formation assay clearly demonstrated a dose-dependent angiogenic inhibitory effect of aANGP-MCs with a maximum inhibition at 4 μg/mL, a 1000-fold lower concentration than that required for free from aANGP to display a biological effect. These results demonstrate valency-dependent enhancement in the therapeutic efficacy of a bioactive peptide following conjugation to nanoparticle surfaces and present a possible treatment alternative to anti-VEGF antibody therapy with decreased side effects and more versatile options for controlled delivery.
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Affiliation(s)
- Rajini Nagaraj
- 1601 Parkveiw Ave, Regenerative Medicine and Disability Research Lab, Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Trevor Stack
- Department of Biomedical Sciences, Northwestern University, Evanston, IL 60208, USA
| | - Sijia Yi
- Department of Biomedical Sciences, Northwestern University, Evanston, IL 60208, USA
| | - Benjamin Mathew
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Kenneth R Shull
- Department of Biomedical Sciences, Northwestern University, Evanston, IL 60208, USA
| | - Evan A Scott
- Department of Biomedical Sciences, Northwestern University, Evanston, IL 60208, USA
| | - Mathew T Mathew
- 1601 Parkveiw Ave, Regenerative Medicine and Disability Research Lab, Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Divya Rani Bijukumar
- 1601 Parkveiw Ave, Regenerative Medicine and Disability Research Lab, Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
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178
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Mukherjee S, Gupta S, Ganorkar K, Kumar A, Ghosh SK. Entrapment in micellar assemblies switches the excimer population of potential therapeutic luminophore azapodophyllotoxin. Spectrochim Acta A Mol Biomol Spectrosc 2020; 228:117723. [PMID: 31748162 DOI: 10.1016/j.saa.2019.117723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 09/19/2019] [Accepted: 10/27/2019] [Indexed: 06/10/2023]
Abstract
Azapodophyllotoxin is a new class of anti-tumor agent with brilliant therapeutic activity and understanding its physicochemical nature in bio-mimetic microenvironments may provide substantial importance in context of its intercellular localization, efficacy as well as delivery. The present work epitomizes environment-sensitive fluorescence modulation of a prodigy, 4-(2-Hydroxyethyl)-10-phenyl-3,4,6,7,8,10- hexahydro-1H-cyclopenta[g]furo[3,4-b]quinoline-1-one (HPFQ) from the class of anti-cancer agent Azapodophyllotoxin, in differently charged model bio-mimetic micellar microenvironment of cationic CTAB, anionic SDS and neutral Triton X-100 using UV-visible absorption, steady state fluorescence, time-resolved fluorescence and fluorescence anisotropy studies. As a distinct phenomenon, anticancer HPFQ exhibits prolific fluorescence in solvents of varying polarity, originating from a mixed contribution of locally excited, charge transfer and excimer emission. A dramatic modulation in the photophysics of HPFQ has been observed in two types of surfactant consortiums: pre-micellar and post-micellar at physiological and anoxic pH. On photo-excitation, anti-cancer HPFQ exists in monomer-excimer equilibrium with varying ratios in different polarity regions. The marked enhancement in fluorescence intensity of HPFQ in post-micellar region of the surfactant under study probably arises due to regeneration of the monomer from its excimer. This reoccurrence reduces the possibility of Förster resonance energy transfer (FRET) from monomer to excimer, which essentially increases the desired emission intensity. Localization of HPFQ in micellar systems highly depends on polarity gradient inside the micelle, electrostatic, hydrophobic and intermolecular hydrogen bonding interactions. Further corroboration with the polarity sensitive experiments in dioxane-water mixture indicates towards spatial localization of the probe molecule in the stern layer of cationic CTAB, sheer surface of neutral TX100 and outer Gouy-Chapman layer in anionic SDS micelles. A molecular binary logic gate correlates the dominance of micellization over the polarity factor, which enhances the fluorescence response of HPFQ. The enhancement of the emissive potential of anti-cancer HPFQ in biomimetic environments by switching its excimer population may have an immense importance to achieve the status of a dual therapeutic and imaging agent altogether in progressive biomedical research.
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Affiliation(s)
- Soham Mukherjee
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, 440010, India
| | - Smruti Gupta
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, 440010, India
| | - Kapil Ganorkar
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, 440010, India
| | - Ajay Kumar
- School of Science, Technology and Environment, Universidad Ana G. Mendez-Cupey Campus, San Juan, PR, USA, 00926
| | - Sujit Kumar Ghosh
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, 440010, India.
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179
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Yang Z, Guo Q, Cai Y, Zhu X, Zhu C, Li Y, Li B. Poly(ethylene glycol)-sheddable reduction-sensitive polyurethane micelles for triggered intracellular drug delivery for osteosarcoma treatment. J Orthop Translat 2020; 21:57-65. [PMID: 32099805 PMCID: PMC7029171 DOI: 10.1016/j.jot.2019.11.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/07/2019] [Accepted: 11/12/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The survival rate of osteosarcoma therapy still lags behind overall cancer therapies due to the intrinsic or acquired drug resistance. Developing novel drug delivery systems that may overcome drug resistance would greatly facilitate osteosarcoma therapy. METHODS Poly(ethylene glycol) (PEG)-sheddable reduction-sensitive polyurethane (SS-PU-SS-PEG) was synthesized using a disulfide-containing polycaprolactone diol as the hydrophobic block and a cystamine-functionalized PEG as the hydrophilic block. SS-PU-SS-PEG micelles were then prepared to load the anti-tumor drug Doxorubicin (DOX) in order to achieve triggered intracellular drug delivery to improve the efficacy of osteosarcoma therapy. RESULTS When DOX was used as a model drug, the drug-loaded SS-PU-SS-PEG micelles were about 82∼94 nm in diameter and exhibited good stability in phosphate buffer saline (PBS). The micelles could release about 80% DOX in a quantitative fashion within 5 hours under a reductive environment. The intracellular drug release of DOX-loaded SS-PU-SS-PEG micelles increased upon incubation with Saos-2 cells in vitro. The micelles had good biocompatibility. In vitro, DOX-loaded SS-PU-SS-PEG micelles showed significant antitumor activity toward Saos-2 cells, which was close to that of free DOX. In vivo, DOX-loaded SS-PU-SS-PEG micelles exhibited better antitumor activity than free DOX. CONCLUSION Findings from this study suggest that the SS-PU-SS-PEG micelles could achieve well-controlled triggered drug release in a reduction environment and could therefore improve the antitumor efficacy of osteosarcoma therapies. TRANSLATION POTENTIAL OF THIS ARTICLE In this study we developed PEG-sheddable reduction-sensitive polyurethane micelles (SS-PU-SS-PEG), which were able to achieve well-controlled triggered release of anti-tumor drug Doxorubicin (DOX) in an intracellular reduction environment. DOX-loaded SS-PU-SS-PEG micelles markedly improved the antitumor efficacy in a Saos-2 cells-bearing xenograft tumor model. Therefore, such micelles might be used as a novel drug delivery system for osteosarcoma treatment.
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Affiliation(s)
- Zhengjie Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, Suzhou, China
- Department of Orthopedic Surgery, Wuxi No.2 People's Hospital, Nanjing Medical University, Wuxi, China
| | - Qianping Guo
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, Suzhou, China
| | - Yan Cai
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, Suzhou, China
| | - Xuesong Zhu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, Suzhou, China
| | - Caihong Zhu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, Suzhou, China
| | - Yuling Li
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, China
| | - Bin Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, Suzhou, China
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180
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Zhu Y, Chu M, Wang Z, Xue Y, Liu B, Sun J, Liu T. Pharmaceutical excipient salts effect on micellization and drug solubilization of PEO-PPO-ph-PPO-PEO block copolymer. Colloids Surf B Biointerfaces 2020; 189:110857. [PMID: 32066087 DOI: 10.1016/j.colsurfb.2020.110857] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 01/14/2020] [Accepted: 02/10/2020] [Indexed: 11/22/2022]
Abstract
Hydrophobic modification PEO-PPO copolymer BP123 was synthesized, with two aromatic rings in the centre linked to PEO-PPO blocks, and the identical PEO and PPO block numbers were possessed with commercial copolymer P123. The influence of three common pharmaceutical excipient salts sodium chloride (NaCl), sodium citrate (NaCA) and sodium benzoate (NaBZ) on self-assembly behaviors of BP123 and P123 was investigated via cloud point, surface tension, pyrene fluorescence and dynamic light scattering. Solubilization for hydrophobic drug simvastatin (SV) and in vitro drug release behavior were assessed accordingly. In the presence of NaCl or NaCA, cloud point and critical micellization concentration (CMC) decreased, micelles became more hydrophobic, micellar size and drug solubilization increased, drug release rate slowed, and the impact of NaCA was more significant than NaCl. Oppositely, cloud point and CMC increased with the addition of NaBZ. NaBZ could participate in the formation of micelles by hydrophobic aromatic ring, which greatly raised solubilization of SV. Moreover, a different performance occurred when NaBZ was added to BP123 or P123, due to the hydrophobic benzene rings in BP123, which prominently enhanced the interaction with hydrophobic drug, leading to obvious delay of drug release for BP123. This work is conducive to turning copolymer property in diverse pharmaceutical applications and in drug delivery systems as drug carriers.
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181
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Qu D, Jiao M, Lin H, Tian C, Qu G, Xue J, Xue L, Ju C, Zhang C. Anisamide-functionalized pH-responsive amphiphilic chitosan-based paclitaxel micelles for sigma-1 receptor targeted prostate cancer treatment. Carbohydr Polym 2020; 229:115498. [PMID: 31826492 DOI: 10.1016/j.carbpol.2019.115498] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/03/2019] [Accepted: 10/17/2019] [Indexed: 02/09/2023]
Abstract
Controlled release and tumor-selective distribution are highly desirable for anticancer nanomedicines. Here, we design and synthesize an anisamide-conjugated N-octyl-N,O-maleoyl-O-phosphoryl chitosan (a-OMPC) which can form amphiphilic micelles featuring pH-responsive release and high affinity to sigma-1 receptor-overexpressed tumors for paclitaxel (PTX) delivery. Thereinto, maleoyl and phosphoryl groups cooperatively contribute to pH-responsive drug release due to a conversion from hydrophile to hydrophobe in the acidic microenvironment of endo/lysosomes. We demonstrated that PTX-loaded a-OMPC micelles (PTX-aM) enhanced the cellular internalization via the affinity between anisamide and sigma-1 receptor, rapidly released drug in endo/lysosomes and elevated the cytotoxicity against PC-3 cells. The in vivo studies further verified that PTX-aM could largely accumulate at the tumor site even after 24 h of administration, resulting in obvious inhibition effect and prolonged survival period in PC-3 tumor xenograft-bearing mice. Moreover, OMPC showed no obvious hemolytic and acute toxicity. Collectively, this chitosan derivate holds a promising potential in application of prostate cancer-targeted drug delivery system.
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Affiliation(s)
- Ding Qu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China; Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China
| | - Mengying Jiao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China
| | - Haijiao Lin
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China
| | - Chunli Tian
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China
| | - Guowei Qu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China
| | - Jingwei Xue
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China
| | - Lingjing Xue
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China
| | - Caoyun Ju
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Can Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing 210009, PR China.
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182
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Jo MJ, Jin IS, Park CW, Hwang BY, Chung YB, Kim JS, Shin DH. Revolutionizing technologies of nano micelles for combinatorial anticancer drug delivery. Arch Pharm Res 2020; 43:100-109. [PMID: 31989478 DOI: 10.1007/s12272-020-01215-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/20/2020] [Indexed: 02/08/2023]
Abstract
Insufficient efficacy of current single drug therapy of cancers have led to the advancement of combination drug-loaded formulations. Specifically, polymeric micelles have been focused on as efficient injectable vehicles for the delivery of several anticancer drugs simultaneously to cancer cells. These nano delivery systems have evolved with advancements in the area of nanotechnology. The current review presents a summary of the past events that have led to the procession of nanomicelles and novel nanotechnologies for combinatorial drug delivery. It also focuses on the advantages, disadvantages, and considerations for the design of nanotechnologies for combinatorial drug delivery systems. The opportunities and challenges of nanotechnologies in drug delivery to overcome current disadvantages are also discussed. Furthermore, we have added findings regarding the trends and perspectives regarding nanotechnologies for combinatorial anticancer drug delivery.
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Affiliation(s)
- Min Jeong Jo
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Ik Sup Jin
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Chun-Woong Park
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Bang Yeon Hwang
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Youn Bok Chung
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Jin-Seok Kim
- Drug Information Research Institute (DIRI), College of Pharmacy, Sookmyung Women's University, Cheongpa-ro 47-gil 100, Yongsan-gu, Seoul, 04310, Republic of Korea.
| | - Dae Hwan Shin
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea.
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183
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Puig-Rigall J, Fernández-Rubio C, González-Benito J, Houston JE, Radulescu A, Nguewa P, González-Gaitano G. Structural characterization by scattering and spectroscopic methods and biological evaluation of polymeric micelles of poloxamines and TPGS as nanocarriers for miltefosine delivery. Int J Pharm 2020; 578:119057. [PMID: 31991188 DOI: 10.1016/j.ijpharm.2020.119057] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/13/2020] [Accepted: 01/16/2020] [Indexed: 11/23/2022]
Abstract
Miltefosine (MF), an alkylphospholipid originally developed for breast cancer treatment, is a highly active drug for the treatment against leishmaniasis, a neglected tropical disease considered the world's second leading cause of death by a parasitic agent after malaria. MF exhibits dose-limiting gastrointestinal side effects in patients and its penetration through lipophilic barriers is reduced. In this work we propose a reformulation of MF by incorporating the drug to poly(ethylene)oxide (PEO)-based polymeric micelles, specifically, D-α-tocopheryl polyethylene glycol succinate (TPGS) and Tetronic block copolymers (T904 and T1107). A full structural characterization of the aggregates has been carried out by SANS (small-angle neutron scattering) and dynamic light scattering (DLS), in combination with proton 1D and 2D nuclear magnetic resonance (NMR) spectroscopy, to determine the precise location of the drug. The structure of MF micelles has been characterized as a function of the temperature and concentration. In the presence of the block-copolymers, MF forms mixed micelles in a wide range of temperatures, TPGS being the co-surfactant that incorporates more MF unimers. The hydrophobic tail of MF and those of the block copolymers are in close contact within the micelles, which present a core-shell structure with a hydrophilic corona formed by the PEG blocks of the TPGS and the zwitterion head group of the MF. In order to identify the best carrier, the antileishmanicidal activity of MF in the different formulations has been tested on macrophages, promastigotes and intracellular amastigotes. The combination of the three vehicles with MF makes the formulated drug more active than MF alone against L. major promastigotes, however, only the combination with T904 increases the MF activity against intracellular amastigotes. With the aim of exploring gel-based formulations of the drug, the combination of MF and T1107 under gelation conditions has also been investigated.
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184
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Lacroix C, Humanes A, Coiffier C, Gigmes D, Verrier B, Trimaille T. Polylactide-Based Reactive Micelles as a Robust Platform for mRNA Delivery. Pharm Res 2020; 37:30. [PMID: 31915939 DOI: 10.1007/s11095-019-2749-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 12/07/2019] [Indexed: 01/09/2023]
Abstract
PURPOSE mRNA has recently emerged as a potent therapeutics and requires safe and effective delivery carriers, particularly prone to address its issues of poor stability and escape from endosomes. In this context, we designed poly(D,L-lactide) (PLA)-based micelles with N-succinimidyl (NS) ester decorated hydrophilic hairy corona to trap/couple a cationic fusogenic peptide and further complex mRNA. METHODS Two strategies were investigated, namely (i) sequential immobilization of peptide and mRNA onto the micelles (layer-by-layer, LbL) or (ii) direct immobilization of peptide-mRNA pre-complex (PC) on the micelles. After characterization by means of size, surface charge, peptide/mRNA coupling/complexation and mRNA serum stability, carrier cytotoxicity and transfection capacity were evaluated with dendritic cells (DCs) using both GFP and luciferase mRNAs. RESULTS Whatever the approach used, the micellar assemblies afforded full protection of mRNA in serum while the peptide-mRNA complex yielded complete mRNA degradation. In addition, the micellar assemblies allowed to significantly reduce the toxicity observed with the peptide-mRNA complex. They successfully transfected hard-to transfect DCs, with a superior efficiency for the LbL made ones (whatever mRNAs studied) showing the impact of the elaboration process on the carrier properties. CONCLUSIONS These results show the relevance and potential of this new PLA/peptide based micelle platform to improve mRNA stability and delivery, while offering the possibility of further multifunctionality through PLA core encapsulation.
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185
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Yan G, Zhang P, Wang J, Wang X, Tang R. Dynamic micelles with detachable PEGylation at tumoral extracellular pH for enhanced chemotherapy. Asian J Pharm Sci 2020; 15:728-738. [PMID: 33363628 PMCID: PMC7750827 DOI: 10.1016/j.ajps.2019.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/25/2019] [Accepted: 11/20/2019] [Indexed: 01/09/2023] Open
Abstract
Although surface PEGylation of nanomedicines can decrease serum protein adsorption in vivo, it also blocks uptake by tumor cells. This dilemma could be overcome by employing detachably PEGylated strategy at tumoral extracellular microenvironment to achieve improved cellular uptake while prolonged circulation times. Herein, the amphiphilic graft copolymers with pH-sensitive ortho ester-linked mPEG in side chains and polyurethanes in backbone, can self-assemble into the free and doxorubicin (DOX)-loaded micelles. The pH-sensitive micelles could undergo several characteristics as follows: (i) PEGylated shells for stability in sodium dodecyl sulfonate (SDS) solution; (ii) DePEGylation via degradation of ortho ester linkages at tumoral extracellular pH (6.5) for gradually dynamic size changes and effective release of DOX; and (iii) enhanced cellular uptake and cytotoxicity via positive DOX. Moreover, the dynamic micelles with detachable PEGylation could quickly penetrate the centers of SH-SY5Y multicellular spheroids (MCs) and strongly inhibit tumor growth in vitro and in vivo, and might be considered as promising and effective drug carriers in tumor therapy.
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Affiliation(s)
- Guoqing Yan
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
| | - Panpan Zhang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
| | - Jun Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
| | - Xin Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
| | - Rupei Tang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
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186
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Agarwal G, Carcache PJB, Addo EM, Kinghorn AD. Current status and contemporary approaches to the discovery of antitumor agents from higher plants. Biotechnol Adv 2020; 38:107337. [PMID: 30633954 PMCID: PMC6614024 DOI: 10.1016/j.biotechadv.2019.01.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 01/03/2019] [Accepted: 01/07/2019] [Indexed: 12/13/2022]
Abstract
Higher plant constituents have afforded clinically available anticancer drugs. These include both chemically unmodified small molecules and their synthetic derivatives currently used or those in clinical trials as antineoplastic agents, and an updated summary is provided. In addition, botanical dietary supplements, exemplified by mangosteen and noni constituents, are also covered as potential cancer chemotherapeutic agents. Approaches to metabolite purification, rapid dereplication, and biological evaluation including analytical hyphenated techniques, molecular networking, and advanced cellular and animal models are discussed. Further, enhanced and targeted drug delivery systems for phytochemicals, including micelles, nanoparticles and antibody drug conjugates (ADCs) are described herein.
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Affiliation(s)
- Garima Agarwal
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Peter J Blanco Carcache
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Ermias Mekuria Addo
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - A Douglas Kinghorn
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States.
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187
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Grimaudo MA, Amato G, Carbone C, Diaz-Rodriguez P, Musumeci T, Concheiro A, Alvarez-Lorenzo C, Puglisi G. Micelle-nanogel platform for ferulic acid ocular delivery. Int J Pharm 2019; 576:118986. [PMID: 31870956 DOI: 10.1016/j.ijpharm.2019.118986] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/04/2019] [Accepted: 12/19/2019] [Indexed: 12/26/2022]
Abstract
Corneal wound healing after a trauma or a chemical injury has been shown to correlate with antioxidant levels at the ocular surface. However, ocular bioavailability of efficient antioxidants (e.g. ferulic acid) after topical administration is limited by their poor solubility, low stability and short residence time. The aim of this work was to formulate ferulic acid in a nanocomposite platform composed of nanogels and micelles for efficient delivery to cornea. Solubility enhancement factor of ferulic acid was found to be equal to 1.9 ± 0.3 and 3.4 ± 0.3 for 50 and 100 mg/ml Pluronic® F68 micellar solutions. Hyaluronan was added to blank and ferulic acid loaded micelles, and then cross-linked with ε-polylysine. Hyaluronan nanogels showed dimensions of ~300 nm with positive zeta potential values. The formulations were characterized in terms of rheological behavior, biocompatibility, wound healing properties, ferulic acid release pattern and penetration into excised bovine corneas. In comparison to Pluronic® micelles that released ferulic acid rapidly, micelle-nanogel composites sustained the release up to 2 days. Furthermore, the micelle-nanogel formulation favored in vitro wound closure promoting fibroblasts growth and ex vivo accumulation of ferulic acid into both healthy and damaged corneas (>100 µg/cm2).
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Affiliation(s)
- Maria Aurora Grimaudo
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy; Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Giovanni Amato
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy.
| | - Claudia Carbone
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy
| | - Patricia Diaz-Rodriguez
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Teresa Musumeci
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Giovanni Puglisi
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy
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188
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Muddineti OS, Kiran Rompicharla SV, Kumari P, Bhatt H, Ghosh B, Biswas S. Lipid and poly (ethylene glycol)-conjugated bi-functionalized chlorine e6 micelles for NIR-light induced photodynamic therapy. Photodiagnosis Photodyn Ther 2019; 29:101633. [PMID: 31870896 DOI: 10.1016/j.pdpdt.2019.101633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/26/2019] [Accepted: 12/18/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND To develop a photosensitizer, chlorin e6 (Ce6)-based amphiphilic polymer, DP-Ce6, where DOPE and PEG are conjugated to Ce6, which would self-assemble to form polymeric micelles (DP-Ce6-M) in aqueous environment. METHODS DP-Ce6-M were characterized for particle size, zeta potential, and singlet oxygen (1O2) generation. Cellular internalization, phototoxicity were investigated against monolayer and 3D spheroids of human lung adenocarcinoma cells (A549). RESULTS AND CONCLUSIONS DP-Ce6-M formed stable micelles with particles size of 58.2 ± 1.6 nm. Solubility of Ce6 was improved. Photoactivity of DP-Ce6-M was sustained in regard to 1O2 generation compared to free Ce6. The DP-Ce6-M showed enhanced internalization and growth inhibition in monolayer and spheroidal cells. Overall, DP-Ce6-M demonstrated the potential for further exploration as PDT agent for cancer treatment.
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Affiliation(s)
- Omkara Swami Muddineti
- Department of Pharmacy, Birla Institute of Technology & Science Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad, 500078, Telangana, India
| | - Sri Vishnu Kiran Rompicharla
- Department of Pharmacy, Birla Institute of Technology & Science Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad, 500078, Telangana, India
| | - Preeti Kumari
- Department of Pharmacy, Birla Institute of Technology & Science Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad, 500078, Telangana, India
| | - Himanshu Bhatt
- Department of Pharmacy, Birla Institute of Technology & Science Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad, 500078, Telangana, India
| | - Balaram Ghosh
- Department of Pharmacy, Birla Institute of Technology & Science Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad, 500078, Telangana, India
| | - Swati Biswas
- Department of Pharmacy, Birla Institute of Technology & Science Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad, 500078, Telangana, India.
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189
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Hermet M, Bakás L, Morcelle SR, Bernik DL. Bromide counterion as a spectroscopic sensor at the interface of cetyltrimethylammonium micelles. Spectrochim Acta A Mol Biomol Spectrosc 2019; 223:117266. [PMID: 31260887 DOI: 10.1016/j.saa.2019.117266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/31/2019] [Accepted: 06/09/2019] [Indexed: 06/09/2023]
Abstract
The strong UV absorption of the bromide in aqueous solution undergoes a remarkable red shift of more than 10 nm induced by the addition of the salts that constitute a saline buffer. The maximum absorption wavelength of the bromide is displaced from approximately 194 nm in ultrapure water to wavelengths above 200 nm, depending on the composition of the solution. The bromide spectrum as counterion of the cetyltrimethylammonium in the surfactant CTAB also shows sensitivity to the aggregation behavior of the tensioactive, being able to detect intermolecular interactions even at concentrations lower than the critical micelle concentration. And, when the micelles are assembled, the bromide absorption detects the interfacial rearrangements caused by the incorporation of ions. To know more about those interfacial features, the pyrene molecular probe was used, taking advantage of the extensive knowledge of its spectroscopy. Pyrene verifies the existence of changes in the interfacial organization which confirm that the sensitivity of the bromide spectrum is based on the ability of the ion to detect its microenvironment, and therefore reaffirms that its absorption spectrum can be used as a local sensor. The present work encourages the use of bromide as a sensor ion in the UV region between 190 and 210 nm, which would avoid the introduction of external molecular probes that could disturb the system.
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Affiliation(s)
- Melisa Hermet
- Plant Proteins Research Center (CIProVe), National University of La Plata, Calles 47 y 115, CP1900, La Plata, Buenos Aires, Argentina
| | - Laura Bakás
- Plant Proteins Research Center (CIProVe), National University of La Plata, Calles 47 y 115, CP1900, La Plata, Buenos Aires, Argentina
| | - Susana R Morcelle
- Plant Proteins Research Center (CIProVe), National University of La Plata, Calles 47 y 115, CP1900, La Plata, Buenos Aires, Argentina
| | - Delia L Bernik
- Plant Proteins Research Center (CIProVe), National University of La Plata, Calles 47 y 115, CP1900, La Plata, Buenos Aires, Argentina.
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190
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Yan G, Huang Y, Li D, Xu Y, Wang J, Wang X, Tang R. Sequentially dynamic polymeric micelles with detachable PEGylation for enhanced chemotherapeutic efficacy. Eur J Pharm Biopharm 2019; 145:54-64. [PMID: 31654712 DOI: 10.1016/j.ejpb.2019.10.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/09/2019] [Accepted: 10/21/2019] [Indexed: 01/08/2023]
Abstract
To achieve enhanced cancer therapy, a sequentially dynamic polymeric drug delivery system (ortho ester-linked PEGylated poly(disulfide)s-based micelle-doxorubicin (PS-g-OEMPEG-DOX)) is successfully constructed. The PEGylated micelle can keep stable in sodium dodecyl sulfate (SDS) solution at pH 7.4, but be prone to DePEGylation and dynamic size changes via the hydrolysis of ortho ester linkages in side chains at tumoral extracellular pH value (6.5). Moreover, the micelle can rapidly release DOX via the cleavage of poly(disulfide)s in backbone at intracellular reductive milieu (10 mmol/L of dithiothreitol (DTT)). The dynamic micelle with detachable PEGylation achieves the stable blood circulation, improved cellular uptake and cytotoxicity, stronger in vitro penetration and inhibition of tumoral multicellular spheroids, and significant in vivo tumor accumulation and inhibition while decreasing side effects. Thus, the sequentially dynamic polymeric micelle with detachable PEGylation can be considered as a promising and effective drug delivery system in cancer therapy.
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Affiliation(s)
- Guoqing Yan
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province 230601, PR China
| | - Yan Huang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province 230601, PR China
| | - Dapeng Li
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province 230601, PR China
| | - Yong Xu
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province 230601, PR China
| | - Jun Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province 230601, PR China
| | - Xin Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province 230601, PR China
| | - Rupei Tang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province 230601, PR China.
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191
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Chaves P, Oliveira J, Haas A, Beck RCR. Applications of Polymeric Nanoparticles in Oral Diseases: A Review of Recent Findings. Curr Pharm Des 2019; 24:1377-1394. [PMID: 29424304 DOI: 10.2174/1381612824666180209110635] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/26/2018] [Accepted: 02/03/2018] [Indexed: 11/22/2022]
Abstract
Polymeric nanoparticles are promising drug delivery systems due to their physicochemical properties, which may be explored to improve the treatment and prevention of several diseases, including oral conditions. Moreover, the pharmacological effects of polymers may be improved by nanostructuration. Therefore, this article provides a detailed review of the studies published between 2010 and 2017 covering the use of polymeric nanoparticles in the treatment and/or prevention of oral diseases. A brief description about the dental biofilm and oral diseases is presented in first part of the article. The following section includes an important discussion about the strategies studied to improve the treatment and prevention of these diseases using polymeric nanoparticles: (i) a better drug antibacterial effect, (ii) the release of the drug in a time-controlled way, (iii) the increase of drug uptake by cells, (iv) the cytotoxicity in tumor cells and solubility in water, and (v) mucoadhesive drug delivery systems. Furthermore, the composition and size of the polymeric nanoparticles explored by these strategies were described. Finally, in the last part of this review, the in vitro and in vivo results which demonstrate the effect of these systems in the treatment and/or prevention of the most prevalent oral disorders were highlighted: dental carious lesions, oral cancer, and periodontal and endodontic diseases.
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Affiliation(s)
- Paula Chaves
- Programa de Pos-Graduacao em Ciencias Farmaceuticas, School of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Joao Oliveira
- Periodontology, Faculty of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Alex Haas
- Periodontology, Faculty of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Ruy Carlos Ruver Beck
- Programa de Pos-Graduacao em Ciencias Farmaceuticas, School of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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192
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Zhang J, Jiang Y, Li Y, Li W, Zhou J, Chen J, Shang Z, Gu Q, Wang W, Shen T, Hu W. Micelles modified with a chitosan-derived homing peptide for targeted intracellular delivery of ginsenoside compound K to liver cancer cells. Carbohydr Polym 2020; 230:115576. [PMID: 31887962 DOI: 10.1016/j.carbpol.2019.115576] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 10/21/2019] [Accepted: 11/06/2019] [Indexed: 12/26/2022]
Abstract
Ginsenoside compound K (CK), a major metabolite of protopanaxadiol ginsenosides, exhibits significant anticancer activities against various cancer cells. However, CK has poor water solubility and low bioavailability, which have limited its application. In this study, A54 peptide was utilized to fabricate CK-loaded micelles (APD-CK) for liver targeting, using deoxycholic acid-O-carboxymethyl chitosan as the vehicle. The average particle size of APD-CK micelles was about 171.4 nm by dynamic light scattering in the hydrated state and their morphology were spherical with good dispersion. An in vitro release assay indicated pH-responsive and sustained release behavior through a mechanism of non-Fickian diffusion. Moreover, the in vitro cytotoxicity of the APD-CK micelles against HepG2 and Huh-7 cells was significantly stronger than that of CK up to 20 μg/mL. Enhanced cellular uptake of micelles in both cell types was established using confocal fluorescence scanning microscopy and flow cytometry. In addition, western blot analysis revealed that APD-CK micelles could promote the protein expression levels of caspase-3, caspase-9, and poly (ADP-ribose) polymerase. Therefore, APD-CK micelles are a potential vehicle for delivering hydrophobic drugs in liver cancer therapy, enhancing drug targeting and anticancer activity.
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193
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Wu H, Fan ZP, Jiang AN, Di XS, He B, Wang S, Goldberg SN, Ahmed M, Zhang Q, Yang W. Combination of intratumoural micellar paclitaxel with radiofrequency ablation: efficacy and toxicity in rodents. Eur Radiol 2019; 29:6202-6210. [PMID: 30993436 DOI: 10.1007/s00330-019-06207-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 03/11/2019] [Accepted: 03/26/2019] [Indexed: 10/27/2022]
Abstract
OBJECTIVES To determine whether radiofrequency ablation (RFA) is more effective when combined with intratumoural injection (IT) than with intravenous injection (IV) of micelles. MATERIALS AND METHODS Balb/c mice bearing 4T1 breast cancer were used. The tumour drug accumulation and biodistribution in major organs were evaluated at different time points after IT, IV, IT+RFA and IV+RFA. Periablational drug penetration was evaluated by quantitative analysis and pathologic staining after different treatments. For long-term outcomes, mice bearing tumours were randomised into six groups (n = 7/group): the control, IV, IT, RFA alone, IV+RFA and IT+RFA groups. The end-point survival was estimated for the different treatment groups. RESULTS In vivo, intratumoural drug accumulation was always much higher for IT than for IV within 48 h (p < 0.001). The IT+RFA group (3084.7 ± 985.5 μm) exhibited greater and deeper drug penetration than the IV+RFA group (686.3 ± 83.7 μm, p < 0.001). Quantitatively, the intratumoural drug accumulation in the IT+RFA group increased approximately 4.0-fold compared with that in the IV+RFA group (p < 0.001). In addition, compared with the IT treatment, the IT+RFA treatment further reduced the drug deposition in the main organs. Survival was longer in the IT+RFA group than in the IV+RFA (p = 0.033) and RF alone (p = 0.003) groups. CONCLUSION The use of IT+RFA achieved much deeper and greater intratumoural drug penetration and accumulation, resulting in better efficacy, and decreased the systemic toxicity of nanoparticle-delivered chemotherapy. KEY POINTS • Association of IT+RFA achieved much deeper and greater intratumoural drug penetration than of IV+RFA, leading to better therapeutic efficacy. • Compared with IV or IT chemotherapy alone, the combination with RFA decreased toxicity, especially in the IT+RFA group.
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Affiliation(s)
- Hao Wu
- Department of Ultrasound, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education /Beijing), Peking University Cancer Hospital & Institute, Beijing, 100142, China
- Department of Ultrasonography, Guangdong Second Provincial General Hospital Affiliated to Southern Medical University, Guangzhou, 510317, China
| | - Zhi-Pu Fan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - An-Na Jiang
- Department of Ultrasound, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education /Beijing), Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Xing-Sheng Di
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Bing He
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Song Wang
- Department of Ultrasound, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education /Beijing), Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - S Nahum Goldberg
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
- Division of Image-Guided Therapy, Department of Radiology, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Muneeb Ahmed
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Qiang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Wei Yang
- Department of Ultrasound, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education /Beijing), Peking University Cancer Hospital & Institute, Beijing, 100142, China.
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194
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Perinelli DR, Campana M, Singh I, Vllasaliu D, Doutch J, Palmieri GF, Casettari L. PEGylation affects the self-assembling behaviour of amphiphilic octapeptides. Int J Pharm 2019; 571:118752. [PMID: 31606529 DOI: 10.1016/j.ijpharm.2019.118752] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/30/2019] [Accepted: 09/29/2019] [Indexed: 01/03/2023]
Abstract
Surfactant-like peptides are a class of amphiphilic macromolecules, which are able to self-assemble in water forming different supramolecular structures. Among them, octapeptides composed of six hydrophobic and two hydrophilic residues have attracted interest since they have a length similar to those of natural phospholipids. Supramolecular structures of different amphiphilic octapeptides have been widely reported, but no study has been performed aimed at investigating the effect of PEGylation on their self-assembling behaviour. The aim of the present work was to synthesize and characterise the self-assembling behaviour of PEGylated alanine- or valine based amphiphilic octapeptides (mPEG1.9kDa-DDAAAAAA and mPEG1.9kDa-DDVVVVVV) in comparison to the non-PEGylated ones (DDAAAAAA and DDVVVVVV). The self-aggregation process in ultrapure water was investigated by fluorescence spectroscopy, small angle neutron scattering (SANS), dynamic light scattering (DLS), while the secondary structure was assessed by circular dichroism. PEGylation markedly affects the self-assembling behaviour of these amphiphilic octapeptides in terms of both critical aggregation concentration (CAC) and shape of the formed supramolecular aggregates. Indeed, PEGylation increases CAC and prevents the self-aggregation into fibrillary supramolecular aggregates (as observed for non-PEGylated peptides), by promoting the formation of micelle-like structures (as demonstrated for valine-based octapeptide). On the other side, the secondary structure of peptides seems not to be affected by PEGylation. Overall, these results suggest that self-assembling behaviour of amphiphilic octapeptides can be modified by PEGylation, with a great potential impact for the future applications of these nanomaterials.
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Affiliation(s)
- Diego Romano Perinelli
- School of Pharmacy, University of Camerino, via Gentile III da Varano, 62032 Camerino, MC, Italy
| | - Mario Campana
- ISIS Neutron Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0QX, UK
| | - Ishwar Singh
- School of Pharmacy, University of Lincoln, Green Lane, Lincoln LN6 7DL, UK
| | - Driton Vllasaliu
- King's College London, Institute of Pharmaceutical Science, London SE1 9NH, UK
| | - James Doutch
- ISIS Neutron Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0QX, UK
| | | | - Luca Casettari
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Piazza del Rinascimento, 6, 61029 Urbino, PU, Italy.
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195
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Abstract
The micellar structure of six alkyl trimethylammonium halides was studied via conductivity. It was found that the aggregation number increased with the decreasing carbon chain length. Furthermore, Br− significantly enhanced the micellar formation over Cl−. However, the aggregation number and ionization degree remain similar for both anions. The modelling results validate that the counter-anions affect micellar formation via equilibrium constants, instead of their hydration size. In particular, the association constants between surfactant (both monomer and micelle) and Br− are significantly higher than Cl−. This is consistent with the qualitative description of hydrated Br− in the literature. The experimental and modelling results confirm that micelles are formed via “ion-paring/hydration” structure, instead of the conventional “packing” concept.
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Affiliation(s)
- Komol Kanta Sharker
- Graduate School of Engineering, University of Hyogo, Shosha, Himeji, 671-2280, Japan
| | - Shin-Ichi Yusa
- Graduate School of Engineering, University of Hyogo, Shosha, Himeji, 671-2280, Japan
| | - Chi Minh Phan
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
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196
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Serra-Batiste M, Ninot-Pedrosa M, Puig E, Ciudad S, Gairí M, Carulla N. Preparation of a Well-Defined and Stable β-Barrel Pore-Forming Aβ42 Oligomer. Methods Mol Biol 2019; 1779:13-22. [PMID: 29886524 DOI: 10.1007/978-1-4939-7816-8_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The formation of amyloid-β peptide (Aβ) oligomers at the cellular membrane is considered a crucial process that underlies neurotoxicity in Alzheimer's disease (AD). To obtain structural information on this type of oligomers, we were inspired by membrane protein approaches used to stabilize, characterize, and analyze the function of such proteins. Using these approaches, we developed conditions under which Aβ42, the Aβ variant most strongly linked to the aetiology of AD, assembles into an oligomer that inserts into lipid bilayers as a well-defined pore and adopts a specific structure with characteristics of a β-barrel arrangement. We named this oligomer β-barrel Pore-Forming Aβ42 Oligomer (βPFOAβ42). Here, we describe detailed protocols for its preparation and characterization. We expect βPFOAβ42 to be useful in establishing the involvement of membrane-associated Aβ oligomers in AD.
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Affiliation(s)
- Montserrat Serra-Batiste
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute Science and Technology, Barcelona, Spain
| | - Martí Ninot-Pedrosa
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute Science and Technology, Barcelona, Spain.,CBMN (UMR 5248), University of Bordeaux-CNRS-IPB, Institut Européen de Chimie et Biologie, Pessac, France
| | - Eduard Puig
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute Science and Technology, Barcelona, Spain.,CBMN (UMR 5248), University of Bordeaux-CNRS-IPB, Institut Européen de Chimie et Biologie, Pessac, France
| | - Sonia Ciudad
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute Science and Technology, Barcelona, Spain.,CBMN (UMR 5248), University of Bordeaux-CNRS-IPB, Institut Européen de Chimie et Biologie, Pessac, France
| | - Margarida Gairí
- NMR Facility, Scientific and Technological Centers, University of Barcelona (CCiTUB), Barcelona, Spain
| | - Natàlia Carulla
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute Science and Technology, Barcelona, Spain. .,CBMN (UMR 5248), University of Bordeaux-CNRS-IPB, Institut Européen de Chimie et Biologie, Pessac, France.
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197
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Shu X, Zhu Z, Cao D, Zheng L, Wang F, Pei H, Wen J, Yang J, Li D, Bai P, Tang M, Ye H, Peng A, Li W, Chen L. PEG-derivatized birinapant as a nanomicellar carrier of paclitaxel delivery for cancer therapy. Colloids Surf B Biointerfaces 2019; 182:110356. [PMID: 31319226 DOI: 10.1016/j.colsurfb.2019.110356] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 07/05/2019] [Accepted: 07/08/2019] [Indexed: 02/05/2023]
Abstract
A novel triblock amphiphilic copolymer (PAL-PEG-Birinapant) was designed and synthesized as a dual-functional micellar carrier utilizing birinapant (an inhibitor of inhibitor-of-apoptosis proteins) as a pH-sensitive segment and inhibitor-of-apoptosis proteins-targeting ligand. The mixed micelles comprised of PAL-PEG-Birinapant (PPB) and mPEG2k-PDLLA2k (MPP), named as PPB/MPP (2/1,w/w) micelles were developed for enhanced solubility and antitumor potency of hydrophobic drugs as paclitaxel (PTX). In vitro cell viability and cytotoxicity studies revealed that the PTX-loaded PPB/MPP micelles were more potent than the commercial PTX formulation (Taxol®), as well as the in vitro cell apoptosis study. Clear differences in the intracellular uptake of free coumarin-6 (C6) solution and C6-loaded PPB/MPP micelles were observed and indicated that the PPB/MPP micelles could efficiently deliver chemical compound into tumor cells. PPB copolymer and PTX-loaded PPB/MPP micelles demonstrated an excellent safety profile with a maximum tolerated dose (MTD) of above 1.2 g copolymer/kg and above 100 mg PTX/kg in mice respectively in contrast to 20˜24 mg/kg of Taxol®. The near infrared (NIR) fluorescence imaging showed that PPB/MPP micelles persisted for a relatively long time in the circulation and accumulated preferentially in tumor tissue. Moreover, PTX loaded PPB/MPP micelles significantly inhibited the tumor growth both in MDA-MB-231 and Ramos cancer xenograft mice models without obvious toxicity. Collectively, our study presents a new dual-functional micelles that improve the therapeutic efficacy of PTX in vitro and in vivo.
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198
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Jadhao M, Joshi R, Ganorkar K, Ghosh SK. Biomimetic systems trigger a benzothiazole based molecular switch to 'turn on' fluorescence. Spectrochim Acta A Mol Biomol Spectrosc 2019; 217:197-205. [PMID: 30939366 DOI: 10.1016/j.saa.2019.03.089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/16/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Molecular switches are valuable tools for the detection of many chemical and biological processes. On the other hand, Schiff bases are known for their simplicity in synthesis and their enormous biochemical applications. In this scenario, when a strategically designed Schiff base acts as a molecular switch in biomimetic environments drags inevitable attention. In this article, we hereby demonstrate an interesting behavior of a strategically designed bioactive benzothiazole based Schiff base (E)-2-(((6-chlorobenzo[d]thiazol-2-ylimino)methyl)-5-diethylamino) phenol (CBMDP) whose fluorescence characteristics dramatically modulate as consequence of its structural modification in aqueous and biomimetic environments individually. Electronic absorption, steady state and time resolved fluorescence spectroscopic techniques along with DFT based quantum chemical calculation evidence that in pure organic solvents CBMDP exists in highly fluorescent enol-imine (N) form which transform into feebly fluorescent hydrated species (H) in bulk aqueous media. Contrariwise, on interaction with the ionic and non-ionic micellar media or with liposome, a structural restoration occurs from less fluorescent hydrated (H) species into a highly fluorescent normal (N) one. This molecular flipping of the title compound upon micellar compartmentalization is possibly caused by the micropolarity of the local environment and further supported by its spectral behavior in different polarity gradient solvent mixture of water-dioxane (protic-aprotic) and water-methanol (protic -protic). Usually, Schiff bases are prone to hydrolysis in aqueous media, interestingly, the structural framework of this strategically designed molecule only allow the first step of hydrolysis, which is hydration of azomethine linkage whereas it withstand the second step, and that possibly helps the structural restoration process. Hence the article described herein may emphasize how a systematically designed Schiff base framework can be used as 'turn off- turn on' fluorescent molecular switch which may be extremely useful for its applications in the area of biochemical sensors.
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Affiliation(s)
- Manojkumar Jadhao
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra 440010, India; Institute of Chemical Technology Mumbai-Marathwada Campus, Jalna, Maharashtra 431203, India
| | - Ritika Joshi
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra 440010, India; Institute of Chemical Technology Mumbai-Marathwada Campus, Jalna, Maharashtra 431203, India
| | - Kapil Ganorkar
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra 440010, India
| | - Sujit Kumar Ghosh
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra 440010, India.
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199
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Tatikolov AS, Pronkin PG, Panova IG. Spectral-fluorescent study of the interaction of polymethine dye probes with biological surfactants - bile salts. Spectrochim Acta A Mol Biomol Spectrosc 2019; 216:190-201. [PMID: 30901704 DOI: 10.1016/j.saa.2019.03.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/05/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
Spectral-fluorescent properties of polymethine dye probes anionic 3,3'-di(sulfopropyl)-4,5,4',5'-dibenzo-9-ethylthiacarbocyanine-betaine (DEC) and cationic 3,3',9-trimethylthiacarbocyanine iodide (Cyan 2) in the presence of biological surfactants, bile salts sodium cholate (NaC), sodium deoxycholate (NaDC) and sodium taurocholate (NaTC), as well as sodium dodecyl sulfate (SDS), have been studied in a wide range of surfactant concentrations. When a surfactant is introduced into a solution of DEC, changes of the spectral-fluorescent properties are observed due to decomposition of dye dimers into cis-monomers and cis-trans conversion of the resulting monomers. In the presence of SDS, both processes occur in parallel, caused by noncovalent interaction of dye monomers with micelles, and mainly occur near the critical micelle concentration (CMC). In contrast, upon the introduction of increasing concentrations of bile salts, decomposition of dye dimers into the monomers begins at lower concentrations than cis-trans conversion. The former process is almost completed at concentrations close to CMC of secondary micelles (CMC2), while the latter process occurs even at concentrations of bile salts much higher than CMC2. Hence, DEC can serve as a probe that permits estimating the value of CMC2 and is indicative of reorganization of secondary micelles upon an increase in bile salt concentration. Aggregation of DEC and Cyan 2 on bile salts is also observed. Since it is observed at relatively low concentrations of bile salts (<CMC2), the aggregation probably occurs on monomeric molecules of bile salts and their small associates and primary micelles. Decomposition of the aggregates formed begins at concentrations of bile salts above CMC2 (that is, upon the interaction with secondary micelles).
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Affiliation(s)
- Alexander S Tatikolov
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119334, Russia.
| | - Pavel G Pronkin
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119334, Russia
| | - Ina G Panova
- N.K. Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Vavilov St. 26, Moscow 119334, Russia
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200
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Albayaty YN, Thomas N, Jambhrunkar M, Al-Hawwas M, Kral A, Thorn CR, Prestidge CA. Enzyme responsive copolymer micelles enhance the anti-biofilm efficacy of the antiseptic chlorhexidine. Int J Pharm 2019; 566:329-41. [PMID: 31152793 DOI: 10.1016/j.ijpharm.2019.05.069] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/09/2019] [Accepted: 05/27/2019] [Indexed: 12/22/2022]
Abstract
Staphylococcal biofilms cause many infectious diseases and are highly tolerant to the effects of antimicrobials; this is partly due to the biofilm matrix, which acts as a physical barrier retarding the penetration and reducing susceptibility to antimicrobials, thereby decreasing successful treatment outcomes. In this study, both single and mixed micellar systems based on poly vinyl caprolactam (PCL)-polyethylene glycol (PEG) copolymers were optimised for delivery of chlorhexidine (CHX) to S. aureus, MRSA and S. epidermidis biofilms and evaluated for their toxicity using Caenorhabditis elegans. The respective polyethylene glycol (PEG) and poly vinyl caprolactam (PCL) structural components promoted stealth properties and enzymatic responsive release of CHX inside biofilms, leading to significantly enhanced penetration (56%) compared with free CHX and improving the efficacy against Staphylococcus aureus biofilms grown on an artificial dermis (2.4 log reduction of CFU). Mixing Soluplus-based micelles with Solutol further enhanced the CHX penetration (71%) and promoted maximum reduction in biofilm biomass (>60%). Nematodes-based toxicity assay showed micelles with no lethal effects as indicated by their high survival rate (100%) after 72 h exposure. This study thus demonstrated that bio-responsive carriers can be designed to deliver a poorly water-soluble antimicrobial agent and advance the control of biofilm associated infections.
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