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Wang X, Dai G, Jiang G, Zhang D, Wang L, Zhang W, Chen H, Cheng T, Zhou Y, Wei X, Li F, Ma D, Tan S, Wei R, Xi L. A TMVP1-modified near-infrared nanoprobe: molecular imaging for tumor metastasis in sentinel lymph node and targeted enhanced photothermal therapy. J Nanobiotechnology 2023; 21:130. [PMID: 37069646 PMCID: PMC10108508 DOI: 10.1186/s12951-023-01883-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/06/2023] [Indexed: 04/19/2023] Open
Abstract
BACKGROUND TMVP1 is a novel tumor targeting polypeptide screened by our laboratory with a core sequence of five amino acids LARGR. It specially binds to vascular endothelial growth factor receptor-3 (VEGFR-3), which is mainly expressed on neo-lymphatic vessels in sentinel lymph node (SLN) with tumor metastasis in adults. Here, we prepared a targeted nanoprobe using TMVP1-modified nanomaterials for tumor metastasis SLN imaging. RESULTS In this study, TMVP1-modified polymer nanomaterials were loaded with the near-infrared (NIR) fluorescent dye, indocyanine green (ICG), to prepare a molecular imaging TMVP1-ICG nanoparticles (NPs) to identify tumor metastasis in SLN at molecular level. TMVP1-ICG-NPs were successfully prepared using the nano-precipitation method. The particle diameter, morphology, drug encapsulation efficiency, UV absorption spectrum, cytotoxicity, safety, and pharmacokinetic properties were determined. The TMVP1-ICG-NPs had a diameter of approximately 130 nm and an ICG loading rate of 70%. In vitro cell experiments and in vivo mouse experiments confirmed that TMVP1-ICG-NPs have good targeting ability to tumors in situ and to SLN with tumor metastasis by binding to VEGFR-3. Effective photothermal therapy (PTT) with TMVP1-ICG-NPs was confirmed in vitro and in vivo. As expected, TMVP1-ICG-NPs improved ICG blood stability, targeted tumor metastasis to SLN, and enhanced PTT/photodynamic (PDT) therapy, without obvious cytotoxicity, making it a promising theranostic nanomedicine. CONCLUSION TMVP1-ICG-NPs identified SLN with tumor metastasis and were used to perform imaging-guided PTT, which makes it a promising strategy for providing real-time NIR fluorescence imaging and intraoperative PTT for patients with SLN metastasis.
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Affiliation(s)
- Xueqian Wang
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Geyang Dai
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Guiying Jiang
- Department of Gynecology, West China Second University Hospital, Chengdu, 610000, China
| | - Danya Zhang
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Ling Wang
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Wen Zhang
- Hubei University of Medicine, Shiyan, 442000, China
| | - Huang Chen
- School of Medicine, Jianghan University, Wuhan, 430000, China
| | - Teng Cheng
- Department of Thyroid and Breast Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ying Zhou
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Xiao Wei
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Fei Li
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Ding Ma
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Songwei Tan
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Rui Wei
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China.
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China.
| | - Ling Xi
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China.
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China.
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Dols-Perez A, Fornaguera C, Feiner-Gracia N, Grijalvo S, Solans C, Gomila G. Effect of surface functionalization and loading on the mechanical properties of soft polymeric nanoparticles prepared by nano-emulsion templating. Colloids Surf B Biointerfaces 2023; 222:113019. [PMID: 36435028 DOI: 10.1016/j.colsurfb.2022.113019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/03/2022] [Accepted: 11/10/2022] [Indexed: 11/13/2022]
Abstract
Drug and gene delivery systems based on polymeric nanoparticles offer a greater efficacy and a reduced toxicity compared to traditional formulations. Recent studies have evidenced that their internalization, biodistribution and efficacy can be affected, among other factors, by their mechanical properties. Here, we analyze by means of Atomic Force Microscopy force spectroscopy how composition, surface functionalization and loading affect the mechanics of nanoparticles. For this purpose, nanoparticles made of Poly(lactic-co-glycolic) (PLGA) and Ethyl cellulose (EC) with different functionalizations and loading were prepared by nano-emulsion templating using the Phase Inversion Composition method (PIC) to form the nano-emulsions. A multiparametric nanomechanical study involving the determination of the Young's modulus, maximum deformation and breakthrough force was carried out. The obtained results showed that composition, surface functionalization and loading affect the nanomechanical properties in a different way, thus requiring, in general, to consider the overall mechanical properties after the addition of a functionalization or loading. A graphical representation method has been proposed enabling to easily identify mechanically equivalent formulations, which is expected to be useful in the development of soft polymeric nanoparticles for pre-clinical and clinical use.
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Affiliation(s)
- Aurora Dols-Perez
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Institut de Bioenginyeria de Catalunya (IBEC), C/ Balidiri i Reixac 15-21, 08028 Barcelona, Spain; Departament of Electronics and Biomedical Engineering, Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Spain.
| | - Cristina Fornaguera
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Grup d'Enginyeria de Materials (Gemat) - Institut Químic de Sarrià (IQS) - Universitat Ramon Llull (URL), Barcelona, Spain
| | - Natalia Feiner-Gracia
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Santiago Grijalvo
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Conxita Solans
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Gabriel Gomila
- Institut de Bioenginyeria de Catalunya (IBEC), C/ Balidiri i Reixac 15-21, 08028 Barcelona, Spain; Departament of Electronics and Biomedical Engineering, Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Spain
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Alsaab HO, Alharbi FD, Alhibs AS, Alanazi NB, Alshehri BY, Saleh MA, Alshehri FS, Algarni MA, Almugaiteeb T, Uddin MN, Alzhrani RM. PLGA-Based Nanomedicine: History of Advancement and Development in Clinical Applications of Multiple Diseases. Pharmaceutics 2022; 14:pharmaceutics14122728. [PMID: 36559223 PMCID: PMC9786338 DOI: 10.3390/pharmaceutics14122728] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/13/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022] Open
Abstract
Research on the use of biodegradable polymers for drug delivery has been ongoing since they were first used as bioresorbable surgical devices in the 1980s. For tissue engineering and drug delivery, biodegradable polymer poly-lactic-co-glycolic acid (PLGA) has shown enormous promise among all biomaterials. PLGA are a family of FDA-approved biodegradable polymers that are physically strong and highly biocompatible and have been extensively studied as delivery vehicles of drugs, proteins, and macromolecules such as DNA and RNA. PLGA has a wide range of erosion times and mechanical properties that can be modified. Many innovative platforms have been widely studied and created for the development of methods for the controlled delivery of PLGA. In this paper, the various manufacturing processes and characteristics that impact their breakdown and drug release are explored in depth. Besides different PLGA-based nanoparticles, preclinical and clinical applications for different diseases and the PLGA platform types and their scale-up issues will be discussed.
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Affiliation(s)
- Hashem O. Alsaab
- Department of Pharmaceutics and Pharmaceutical Technology, Taif University, Taif 21944, Saudi Arabia
- Correspondence: ; Tel.: +966-556047523
| | - Fatima D. Alharbi
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Alanoud S. Alhibs
- Department of Pharmacy, King Fahad Medical City, Riyadh 11564, Saudi Arabia
| | - Nouf B. Alanazi
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Bayan Y. Alshehri
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Marwa A. Saleh
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City, Cairo 11754, Egypt
| | - Fahad S. Alshehri
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, Makkah 24382, Saudi Arabia
| | - Majed A. Algarni
- Department of Clinical Pharmacy, College of Pharmacy, Taif University, Taif 21944, Saudi Arabia
| | - Turki Almugaiteeb
- Taqnia-Research Products Development Company, Riyadh 13244, Saudi Arabia
| | | | - Rami M. Alzhrani
- Department of Pharmaceutics and Pharmaceutical Technology, Taif University, Taif 21944, Saudi Arabia
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Omidi M, Mansouri V, Mohammadi Amirabad L, Tayebi L. Impact of Lipid/Magnesium Hydroxide Hybrid Nanoparticles on the Stability of Vascular Endothelial Growth Factor-Loaded PLGA Microspheres. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24370-24384. [PMID: 34006111 PMCID: PMC9328745 DOI: 10.1021/acsami.0c22140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The purpose of the present study is to characterize poly(d,l-lactide-co-glycolide) (PLGA) composite microcarriers for vascular endothelial growth factor (VEGF) delivery. To reduce the initial burst release and protect the bioactivity, VEGF is encapsulated in soybean l-α-phosphatidylethanolamine (PE) and l-α-phosphatidylcholine (PC) anhydrous reverse micelle (VEGF-RM) nanoparticles. Also, mesoporous nano-hexagonal Mg(OH)2 nanostructure (MNS)-loaded PE/PC anhydrous reverse micelle (MNS-RM) nanoparticles are synthesized to suppress the induced inflammation of PLGA acidic byproducts and regulate the release profile. The flow-focusing microfluidic geometry platforms are used to fabricate different combinations of PLGA composite microspheres (PLGA-CMPs) with MNSs, MNS-RM, VEGF-RM, and native VEGF. The essential parameters of each formulation, such as release profiles, encapsulation efficacy, bioactivity, inflammatory response, and cytotoxicity, are investigated by in vitro and in vivo studies. The results indicate that generated acidic byproducts during the hydrolytic degradation process of PLGA can be buffered, and pH values inside and outside microspheres can remain steady during degradation by MNSs. Furthermore, the significant improvement in the stability of the encapsulated VEGF is confirmed by the bioactivity assay. In vitro release study shows that the VEGF initial burst release is well minimized in the present microcarriers. The present monodisperse PLGA-CMPs can be widely used in various tissue engineering and therapeutic applications.
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Affiliation(s)
- Meisam Omidi
- Marquette University School of Dentistry, Milwaukee, Wisconsin 53201-1881, United States
- Protein Research Center, Shahid Beheshti University G.C., Tehran 19839-69411, Iran
| | - Vahid Mansouri
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical sciences, Tehran 19857-17443, Iran
- Department of Basic Science, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran 19857-17443, Iran
| | | | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, Wisconsin 53201-1881, United States
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5
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Pandey P, Gulati N, Makhija M, Purohit D, Dureja H. Nanoemulsion: A Novel Drug Delivery Approach for Enhancement of Bioavailability. RECENT PATENTS ON NANOTECHNOLOGY 2020; 14:276-293. [PMID: 32496999 DOI: 10.2174/1872210514666200604145755] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 02/26/2020] [Accepted: 03/07/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Poor bioavailability and solubility of drugs in aqueous phase are the most important problems of newly developed chemical entities that can be improved by nanoemulsion. OBJECTIVES BCS class II and IV which are poorly soluble in water demonstrate various problems in conventional dosage forms. For the improvement of solubility, bioavailability and getting the best therapeutic effect of poorly soluble drugs nanoemulsion is the best solution. METHODS Nanoemulsion are thermodynamically unstable isotropic system with droplet size 1-100 nm in which two immiscible fluids are combined together to form one phase by using an emulsifying agent. Nanoemulsion can be designed to promote the bioavailability of API by trapping them inside. RESULTS Nanoemulsion can be developed in many dosage forms such as oral, parenteral, topical, ophthalmic dosage form in large scale using common operation at a very low cost. Large range of lipophilic drugs can be easily incorporated in nanoemulsion. CONCLUSION In this review, attention is focused on the type of nanoemulsions, their advantages over other dosage form, method for their preparation, characterization, applications and patents in various fields.
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Affiliation(s)
- Parijat Pandey
- Shri Baba Mastnath Institute of Pharmaceutical Sciences and Research, Baba Mastnath University, Rohtak - 124001, India
| | - Nisha Gulati
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak - 124001, India
| | - Manish Makhija
- Department of Pharmaceutical Sciences, Indira Gandhi University, Meerpur, Rewari - 123401, India
| | - Deepika Purohit
- Department of Pharmaceutical Sciences, Indira Gandhi University, Meerpur, Rewari - 123401, India
| | - Harish Dureja
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak - 124001, India
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6
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Omidi M, Almeida L, Tayebi L. Microfluidic-assisted fabrication of reverse micelle/PLGA hybrid microspheres for sustained vascular endothelial growth factor delivery. Biotechnol Appl Biochem 2020; 68:616-625. [PMID: 32533571 DOI: 10.1002/bab.1971] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 06/06/2020] [Indexed: 12/17/2022]
Abstract
In this study, poly (d, l-lactide-co-glycolide) (PLGA) composite microspheres containing anhydrous reverse micelle (R.M.) dipalmitoylphosphatidylcholine (DPPC) nanoparticles loaded vascular endothelial growth factor (VEGF) were produced using microfluidic platforms. The VEGF-loaded R.M. nanoparticles (VRM) were achieved by initial self-assembly and subsequent lipid inversion of the DPPC vesicles. The fabricated VRMs were encapsulated into the PLGA matrix by flow-focusing geometry microfluidic platforms. The encapsulation efficiency, in vitro release profile, and the bioactivity of the produced composite microspheres were investigated. The release study showed that VEGF was slowly released from the PLGA composite microspheres over 28 days with a reduced initial burst (18 ± 4.17% in the first 24 H). The VEGF stability during encapsulation and release period was also investigated, and the results indicated that encapsulated VEGF was well preserved. Also, the bioactivity assay of the PLGA composite microspheres on human umbilical vein endothelial cells was confirmed that the encapsulated VEGF was utterly active. The present monodisperse and controllable VEGF-loaded microspheres with reproducible manner could be widely used in tissue engineering and therapeutic applications.
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Affiliation(s)
- Meisam Omidi
- Marquette University School of Dentistry, Milwaukee, WI, USA
| | - Luis Almeida
- Marquette University School of Dentistry, Milwaukee, WI, USA
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI, USA
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7
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Bazylińska U, Kulbacka J, Chodaczek G. Nanoemulsion Structural Design in Co-Encapsulation of Hybrid Multifunctional Agents: Influence of the Smart PLGA Polymers on the Nanosystem-Enhanced Delivery and Electro-Photodynamic Treatment. Pharmaceutics 2019; 11:pharmaceutics11080405. [PMID: 31405247 PMCID: PMC6723278 DOI: 10.3390/pharmaceutics11080405] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/31/2019] [Accepted: 08/08/2019] [Indexed: 01/25/2023] Open
Abstract
In the present study, we examined properties of poly(lactide-co-glycolide) (PLGA)-based nanocarriers (NCs) with various functional or “smart” properties, i.e., coated with PLGA, polyethylene glycolated PLGA (PEG-PLGA), or folic acid-functionalized PLGA (FA-PLGA). NCs were obtained by double emulsion (water-in-oil-in-water) evaporation process, which is one of the most suitable approaches in nanoemulsion structural design. Nanoemulsion surface engineering allowed us to co-encapsulate a hydrophobic porphyrin photosensitizing dye—verteporfin (VP) in combination with low-dose cisplatin (CisPt)—a hydrophilic cytostatic drug. The composition was tested as a multifunctional and synergistic hybrid agent for bioimaging and anticancer treatment assisted by electroporation on human ovarian cancer SKOV-3 and control hamster ovarian fibroblastoid CHO-K1 cell lines. The diameter of PLGA NCs with different coatings was on average 200 nm, as shown by dynamic light scattering, transmission electron microscopy, and atomic force microscopy. We analyzed the effect of the nanocarrier charge and the polymeric shield variation on the colloidal stability using microelectrophoretic and turbidimetric methods. The cellular internalization and anticancer activity following the electro-photodynamic treatment (EP-PDT) were assessed with confocal microscopy and flow cytometry. Our data show that functionalized PLGA NCs are biocompatible and enable efficient delivery of the hybrid cargo to cancer cells, followed by enhanced killing of cells when supported by EP-PDT.
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Affiliation(s)
- Urszula Bazylińska
- Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Grzegorz Chodaczek
- Łukasiewicz Research Network-PORT Polish Center for Technology Development, 54-066 Wroclaw, Poland
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Highly bioactive, bevacizumab-loaded, sustained-release PLGA/PCADK microspheres for intravitreal therapy in ocular diseases. Int J Pharm 2019; 563:228-236. [DOI: 10.1016/j.ijpharm.2019.04.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 03/25/2019] [Accepted: 04/04/2019] [Indexed: 12/21/2022]
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9
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Rehman AU, Collot M, Klymchenko AS, Akram S, Mustafa B, Vandamme T, Anton N. Spontaneous nano-emulsification with tailor-made amphiphilic polymers and related monomers. ACTA ACUST UNITED AC 2019. [DOI: 10.34154/2019-ejpr.01(01).pp-27-36/euraass] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In general, nano-emulsions are submicron droplets composed of liquid oil phase dispersed in liquid aqueous bulk phase. They are stable and very powerful systems when it regards the encapsulation of lipophilic compounds and their dispersion in aqueous medium. On the other hand, when the properties of the nano-emulsions aim to be modified, e.g. for changing their surface properties, decorating the droplets with targeting ligands, or modifying the surface charge, the dynamic liquid / liquid interfaces make it relatively challenging. In this study, we have explored the development of nano-emulsions which were not anymore stabilized with a classical low-molecular weight surfactant, but instead, with an amphiphilic polymer based on poly(maleic anhydride-alt-1-octadecene) (PMAO) and Jeffamine®, a hydrophilic amino-terminated PPG/PEG copolymer. Using a polymer as stabilizer is a potential solution for the nano-emulsion functionalization, ensuring the droplet stabilization as well as being a platform for the droplet decoration with ligands (for instance after addition of function groups in the terminations of the chains). The main idea of the present work was to understand if the spontaneous emulsification –commonly performed with nonionic surfactants– can be transposed with amphiphilic polymers, and a secondary objective was to identify the main parameters impacting on the process. PMAO was modified with two different Jeffamine®, additionally different oils and different formulation conditions were evaluated. As a control, the parent monomer, octadecyl succinic anhydride (OSA) was also modified and studied in the similar way as that of polymer. The generated nano-emulsions were mainly studied by dynamic light scattering and electron microscopy, that allows discriminating the crucial parameters in the spontaneous process, originally conducted with polymers as only stabilizer.
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Affiliation(s)
- Asad Ur Rehman
- University of Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France AND Bahauddin Zakariya University (BZU) Multan, Pakistan
| | - Mayeul Collot
- University of Strasbourg, CNRS, LBP UMR 7021, F-67000 Strasbourg, France
| | | | - Salman Akram
- University of Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France
| | - Bilal Mustafa
- University of Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France
| | - Thierry Vandamme
- University of Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France
| | - Nicolas Anton
- University of Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France
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Prévot G, Soria FN, Thiolat ML, Daniel J, Verlhac JB, Blanchard-Desce M, Bezard E, Barthélémy P, Crauste-Manciet S, Dehay B. Harnessing Lysosomal pH through PLGA Nanoemulsion as a Treatment of Lysosomal-Related Neurodegenerative Diseases. Bioconjug Chem 2018; 29:4083-4089. [PMID: 30424597 DOI: 10.1021/acs.bioconjchem.8b00697] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Most neurodegenerative disorders are characterized by deposits of misfolded proteins and neuronal degeneration in specific brain regions. Growing evidence indicates that lysosomal impairment plays a primary pathogenic role in these diseases, in particular, the occurrence of increased lysosomal pH. Thus, therapeutic development aiming at restoring lysosomal function represents a novel, precise, and promising strategy for the treatment of these pathologies. Herein we demonstrate that acidic oil-in-water nanoemulsions loaded with poly(dl-lactide- co-glycolide) (PLGA) are able to rescue impaired lysosomal pH in genetic cellular models of Parkinson's disease. For in vivo assays, nanoemulsions were labeled with an original synthetic hydrophobic far red-emitting dye to allow fluorescence monitoring. Following stereotaxic injection in the mouse brain, widespread diffusion of the nanocarrier was observed, up to 500 μm from the injection site, as well as internalization into the lysosomal compartment in brain cells. Finally, promising preliminary assays of systemic administration demonstrate that a fraction of the formulation crosses the blood brain barrier, penetrates the brain parenchyma, is internalized by cells, and colocalizes with lysosomal markers. Overall, these results suggest the feasibility and the therapeutic potential of this new nanoformulation as an effective drug delivery tool to the brain, with the potential to rescue pathological lysosomal deficits.
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Affiliation(s)
- Geoffrey Prévot
- Université de Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux , France
| | - Federico N Soria
- Université de Bordeaux , Institut des Maladies Neurodégénératives, UMR 5293 , F-33076 Bordeaux , France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33076 Bordeaux , France
| | - Marie-Laure Thiolat
- Université de Bordeaux , Institut des Maladies Neurodégénératives, UMR 5293 , F-33076 Bordeaux , France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33076 Bordeaux , France
| | - Jonathan Daniel
- Université de Bordeaux , Institut des Sciences Moléculaires (CNRS UMR 5255) , F-33400 Talence , France
| | - Jean Baptiste Verlhac
- Université de Bordeaux , Institut des Sciences Moléculaires (CNRS UMR 5255) , F-33400 Talence , France
| | - Mireille Blanchard-Desce
- Université de Bordeaux , Institut des Sciences Moléculaires (CNRS UMR 5255) , F-33400 Talence , France
| | - Erwan Bezard
- Université de Bordeaux , Institut des Maladies Neurodégénératives, UMR 5293 , F-33076 Bordeaux , France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33076 Bordeaux , France
| | - Philippe Barthélémy
- Université de Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux , France
| | - Sylvie Crauste-Manciet
- Université de Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux , France
| | - Benjamin Dehay
- Université de Bordeaux , Institut des Maladies Neurodégénératives, UMR 5293 , F-33076 Bordeaux , France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33076 Bordeaux , France
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Feiner-Gracia N, Dols-Perez A, Royo M, Solans C, Garcia-Celma M, Fornaguera C. Cell penetrating peptide grafting of PLGA nanoparticles to enhance cell uptake. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.09.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Chen L, Mei L, Feng D, Huang D, Tong X, Pan X, Zhu C, Wu C. Anhydrous reverse micelle lecithin nanoparticles/PLGA composite microspheres for long-term protein delivery with reduced initial burst. Colloids Surf B Biointerfaces 2017; 163:146-154. [PMID: 29291500 DOI: 10.1016/j.colsurfb.2017.12.040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/29/2017] [Accepted: 12/20/2017] [Indexed: 11/25/2022]
Abstract
To address the issue of initial burst release from poly (lactic-co-glycolic) acid (PLGA) microspheres prepared by water-in-oil-in-water (W/O/W) double emulsion technique, PLGA composite microspheres containing anhydrous reverse micelle (ARM) lecithin nanoparticles were developed by a modified solid-in-oil-in-water (S/O/W) technique. Bovine serum albumin (BSA) loaded ARM lecithin nanoparticles, which were obtained by initial self-assembly and subsequent lipid inversion of the lecithin vesicles, were then encapsulated into PLGA matrix by the S/O/W technique to form composite microspheres. In vitro release study indicated that BSA was slowly released from the PLGA composite microspheres over 60 days with a reduced initial burst (11.42 ± 2.17% within 24 h). The potential mechanism of reduced initial burst and protein protection using this drug delivery system was analyzed through observing the degradation process of carriers and fitting drug release data with various kinetic models. The secondary structure of encapsulated BSA was well maintained through the steric barrier effect of ARM lecithin nanoparticles, which avoided exposure of proteins to the organic solvent during the preparation procedure. In addition, the PLGA composite microspheres exhibited superior biocompatibility without notable cytotoxicity. These results suggested that ARM lecithin nanoparticles/PLGA composite microspheres could be a promising platform for long-term protein delivery with a reduced initial burst.
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Affiliation(s)
- Longkai Chen
- Institute for Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China; School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Liling Mei
- Institute for Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China; School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Disang Feng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Di Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xin Tong
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Chune Zhu
- Institute for Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Chuanbin Wu
- Institute for Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China; School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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