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Miranda-Muñoz K, Midkiff K, Woessner A, Afshar-Mohajer M, Zou M, Pollock E, Gonzalez-Nino D, Prinz G, Hutchinson L, Li R, Kompalage K, Culbertson CT, Tucker RJ, Coetzee H, Tsai T, Powell J, Almodovar J. A Multicomponent Microneedle Patch for the Delivery of Meloxicam for Veterinary Applications. ACS NANO 2024; 18:25716-25739. [PMID: 39225687 DOI: 10.1021/acsnano.4c08072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
This study evaluates the use of poly(vinyl alcohol), collagen, and chitosan blends for developing a microneedle patch for the delivery of meloxicam (MEL). Results confirm successful MEL encapsulation, structural integrity, and chemical stability even after ethylene oxide sterilization. Mechanical testing indicates the patch has the required properties for effective skin penetration and drug delivery, as demonstrated by load-displacement curves showing successful penetration of pig ear surfaces at 3N of normal load. In vitro imaging confirms the microneedle patch penetrates the pig's ear cadaver skin effectively and uniformly, with histological evaluation revealing the sustained presence and gradual degradation of microneedles within the skin. Additionally, in vitro drug diffusion experiments utilizing ballistic gel suggest that microneedles commence dissolution almost immediately upon insertion into the gel, steadily releasing the drug over 24 h. Furthermore, the microneedle patch demonstrates ideal drug release capabilities, achieving nearly 100% release of meloxicam content from a single patch within 18 h. Finally, in vivo studies using pigs demonstrate the successful dissolution and transdermal drug delivery efficacy of biodegradable microneedle patches delivering meloxicam in a porcine model, with over 70% of microneedles undergoing dissolution after 3 days. While low detectable meloxicam concentrations were observed in the bloodstream, high levels were detected in the ear tissue, confirming the release and diffusion of the drug from microneedles. This work highlights the potential of microneedle patches for controlled drug release in veterinary applications.
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Affiliation(s)
- Katherine Miranda-Muñoz
- Department of Biomedical Engineering, College of Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Kirsten Midkiff
- Department of Animal Sciences, University of Arkansas, B110 Agriculture, Food and Life Sciences Building, Fayetteville, Arkansas 72701, United States
| | - Alan Woessner
- Department of Biomedical Engineering, College of Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
- Arkansas Integrative Metabolic Research Center, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Mahyar Afshar-Mohajer
- Department of Mechanical Engineering, University of Arkansas, 204 Mechanical Engineering Building, Fayetteville, Arkansas 72701, United States
| | - Min Zou
- Department of Mechanical Engineering, University of Arkansas, 204 Mechanical Engineering Building, Fayetteville, Arkansas 72701, United States
| | - Erik Pollock
- Department of Biological Sciences, University of Arkansas, Fayetteville, Science Engineering Building, Fayetteville, Arkansas 72701, United States
| | - David Gonzalez-Nino
- Department of Civil Engineering, University of Arkansas, 4190 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Gary Prinz
- Department of Civil Engineering, University of Arkansas, 4190 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Lillian Hutchinson
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Ruohan Li
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Kushan Kompalage
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, 213 CBC Building, 1212 Mid-Campus Dr North, Manhattan, Kansas 66506, United States
| | - Christopher T Culbertson
- Department of Chemistry, Kansas State University, 228 Coles Hall, 1710 Denison Ave, Manhattan, Kansas 66506, United States
| | - Ryan Jared Tucker
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, 213 CBC Building, 1212 Mid-Campus Dr North, Manhattan, Kansas 66506, United States
| | - Hans Coetzee
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, 213 CBC Building, 1212 Mid-Campus Dr North, Manhattan, Kansas 66506, United States
| | - Tsung Tsai
- Department of Animal Sciences, University of Arkansas, B110 Agriculture, Food and Life Sciences Building, Fayetteville, Arkansas 72701, United States
| | - Jeremy Powell
- Department of Animal Sciences, University of Arkansas, B110 Agriculture, Food and Life Sciences Building, Fayetteville, Arkansas 72701, United States
| | - Jorge Almodovar
- Department of Biomedical Engineering, College of Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
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Zhang S, Yang G, Zhang Q, Fan Y, Tang M, Shen L, Zhu D, Zhang G, Yard B. PEGylation renders carnosine resistant to hydrolysis by serum carnosinase and increases renal carnosine levels. Amino Acids 2024; 56:44. [PMID: 38960916 PMCID: PMC11222247 DOI: 10.1007/s00726-024-03405-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 06/26/2024] [Indexed: 07/05/2024]
Abstract
Carnosine's protective effect in rodent models of glycoxidative stress have provided a rational for translation of these findings in therapeutic concepts in patient with diabetic kidney disease. In contrast to rodents however, carnosine is rapidly degraded by the carnosinase-1 enzyme. To overcome this hurdle, we sought to protect hydrolysis of carnosine by conjugation to Methoxypolyethylene glycol amine (mPEG-NH2). PEGylated carnosine (PEG-car) was used to study the hydrolysis of carnosine by human serum as well as to compare the pharmacokinetics of PEG-car and L-carnosine in mice after intravenous (IV) injection. While L-carnosine was rapidly hydrolyzed in human serum, PEG-car was highly resistant to hydrolysis. Addition of unconjugated PEG to carnosine or PEG-car did not influence hydrolysis of carnosine in serum. In mice PEG-car and L-carnosine exhibited similar pharmacokinetics in serum but differed in half-life time (t1/2) in kidney, with PEG-car showing a significantly higher t1/2 compared to L-carnosine. Hence, PEGylation of carnosine is an effective approach to prevent carnosine degradations and to achieve higher renal carnosine levels. However, further studies are warranted to test if the protective properties of carnosine are preserved after PEGylation.
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Affiliation(s)
- Shiqi Zhang
- Department of Endocrinology, The first affiliated hospital of Anhui Medical University, Hefei, 230022, China.
| | - Guang Yang
- Department of Endocrinology, The first affiliated hospital of Anhui Medical University, Hefei, 230022, China
| | - Qinqin Zhang
- Department of Endocrinology, The first affiliated hospital of Anhui Medical University, Hefei, 230022, China
| | - Yuying Fan
- Department of Endocrinology, The first affiliated hospital of Anhui Medical University, Hefei, 230022, China
| | - Mingna Tang
- Department of Endocrinology, The first affiliated hospital of Anhui Medical University, Hefei, 230022, China
| | - Liuhai Shen
- Department of Nuclear Medicine, Provincial Peoplès Hospital, Anhui No. 2, Hefei, 230041, China
| | - Dongchun Zhu
- Department of Pharmacy, The first affiliated hospital of Anhui Medical University, Hefei, 230022, China
| | - Guiyang Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Benito Yard
- Vth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Center Mannheim, University of Heidelberg, 68167, Mannheim, Germany
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Lei Z, Liang H, Sun W, Chen Y, Huang Z, Yu B. A biodegradable PVA coating constructed on the surface of the implant for preventing bacterial colonization and biofilm formation. J Orthop Surg Res 2024; 19:175. [PMID: 38459593 PMCID: PMC10921624 DOI: 10.1186/s13018-024-04662-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/02/2024] [Indexed: 03/10/2024] Open
Abstract
BACKGROUND Bone implant infections pose a critical challenge in orthopedic surgery, often leading to implant failure. The potential of implant coatings to deter infections by hindering biofilm formation is promising. However, a shortage of cost-effective, efficient, and clinically suitable coatings persists. Polyvinyl alcohol (PVA), a prevalent biomaterial, possesses inherent hydrophilicity, offering potential antibacterial properties. METHODS This study investigates the PVA solution's capacity to shield implants from bacterial adhesion, suppress bacterial proliferation, and thwart biofilm development. PVA solutions at concentrations of 5%, 10%, 15%, and 20% were prepared. In vitro assessments evaluated PVA's ability to impede bacterial growth and biofilm formation. The interaction between PVA and mCherry-labeled Escherichia coli (E. coli) was scrutinized, along with PVA's therapeutic effects in a rat osteomyelitis model. RESULTS The PVA solution effectively restrained bacterial proliferation and biofilm formation on titanium implants. PVA solution had no substantial impact on the activity or osteogenic potential of MC3T3-E1 cells. Post-operatively, the PVA solution markedly reduced the number of Staphylococcus aureus and E. coli colonies surrounding the implant. Imaging and histological scores exhibited significant improvements 2 weeks post-operation. Additionally, no abnormalities were detected in the internal organs of PVA-treated rats. CONCLUSIONS PVA solution emerges as an economical, uncomplicated, and effective coating material for inhibiting bacterial replication and biofilm formation on implant surfaces, even in high-contamination surgical environments.
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Affiliation(s)
- Zhonghua Lei
- Orthopedic and Traumatology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
- Department of Orthopedics, The Sixth Peoples Hospital of Huizhou, Huizhou, 516211, China
| | - Haifeng Liang
- Orthopedic and Traumatology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
- Department of Orthopedics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Wei Sun
- Orthopedic and Traumatology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Yan Chen
- Ultrasound Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Zhi Huang
- Institute of Biomedical Engineering, School of Basic Medical Sciences, Central South University, Changsha, 410083, China.
| | - Bo Yu
- Orthopedic and Traumatology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
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Ramöller IK, Volpe-Zanutto F, Vora LK, Abbate MTA, Hutton ARJ, McKenna PE, Peng K, Tekko IA, Sabri A, McAlister E, McCarthy HO, Paredes AJ, Donnelly RF. Intradermal delivery of the antiretroviral drugs cabotegravir and rilpivirine by dissolving microarray patches: Investigation of lymphatic uptake. J Control Release 2024; 366:548-566. [PMID: 38211640 DOI: 10.1016/j.jconrel.2024.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 01/13/2024]
Abstract
The lymphatic system possesses the main viral replication sites in the body following viral infection. Unfortunately, current antiretroviral agents penetrate the lymph nodes insufficiently when administered orally and, therefore, cannot access the lymphatic system sufficiently to interrupt this viral replication. For this reason, novel drug delivery systems aimed at enhancing the lymphatic uptake of antiretroviral drugs are highly desirable. Dissolving polymeric microarray patches (MAPs) may help to target the lymph intradermally. MAPs are intradermal drug delivery systems used to deliver many types of compounds. The present work describes a novel work investigating the lymphatic uptake of two anti-HIV drugs: cabotegravir (CAB) and rilpivirine (RPV) when delivered intradermally using dissolving MAPs containing nanocrystals of both drugs. Maps were formulated using NCs obtained by solvent-free milling technique. The polymers used to prepare the NCs of both drugs were PVA 10 Kda and PVP 58 Kda. Both NCs were submitted to the lyophilization process and reconstituted with deionized water to form the first layer of drug casting. Backing layers were developed for short application times and effective skin deposition. In vivo biodistribution profiles of RPV and CAB after MAP skin application were investigated and compared with the commercial intramuscular injection using rats. After a single application of RPV MAPs, a higher concentration of RPV was delivered to the axillary lymph nodes (AL) (Cmax 2466 ng/g - Tmax 3 days) when compared with RPV IM injection (18 ng/g - Tmax 1 day), while CAB MAPs delivered slightly lower amounts of drug to the AL (5808 ng/g in 3 days) when compared with CAB IM injection (9225 ng/g in 10 days). However, CAB MAPs delivered 7726 ng/g (Tmax 7 days) to the external lumbar lymph nodes, which was statistically equivalent to IM delivery (Cmax 8282 ng/g - Tmax 7 days). This work provides strong evidence that MAPs were able to enhance the delivery of CAB and RPV to the lymphatic system compared to the IM delivery route.
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Affiliation(s)
- Inken K Ramöller
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Fabiana Volpe-Zanutto
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom; Faculty of Pharmaceutical Sciences, R. Cândido Portinari, 200 - Cidade Universitária, University of Campinas, Campinas, SP 13083-871, Brazil
| | - Lalitkumar K Vora
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Marco T A Abbate
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Aaron R J Hutton
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Peter E McKenna
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Ke Peng
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Ismaiel A Tekko
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom; Faculty of Pharmacy, Aleppo University, Syria
| | - Akmal Sabri
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Emma McAlister
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Alejandro J Paredes
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom.
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5
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Xu M, Qi Y, Liu G, Song Y, Jiang X, Du B. Size-Dependent In Vivo Transport of Nanoparticles: Implications for Delivery, Targeting, and Clearance. ACS NANO 2023; 17:20825-20849. [PMID: 37921488 DOI: 10.1021/acsnano.3c05853] [Citation(s) in RCA: 50] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Understanding the in vivo transport of nanoparticles provides guidelines for designing nanomedicines with higher efficacy and fewer side effects. Among many factors, the size of nanoparticles plays a key role in controlling their in vivo transport behaviors due to the existence of various physiological size thresholds within the body and size-dependent nano-bio interactions. Encouraged by the evolving discoveries of nanoparticle-size-dependent biological effects, we believe that it is necessary to systematically summarize the size-scaling laws of nanoparticle transport in vivo. In this review, we summarized the size effect of nanoparticles on their in vivo transport along their journey in the body: begin with the administration of nanoparticles via different delivery routes, followed by the targeting of nanoparticles to intended tissues including tumors and other organs, and eventually clearance of nanoparticles through the liver or kidneys. We outlined the tools for investigating the in vivo transport of nanoparticles as well. Finally, we discussed how we may leverage the size-dependent transport to tackle some of the key challenges in nanomedicine translation and also raised important size-related questions that remain to be answered in the future.
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Affiliation(s)
- Mingze Xu
- Center for Medical Research on Innovation and Translation, Institute of Clinical Medicine, The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, P.R. China
| | - Yuming Qi
- Center for Medical Research on Innovation and Translation, Institute of Clinical Medicine, The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, P.R. China
| | - Gaoshuo Liu
- Center for Medical Research on Innovation and Translation, Institute of Clinical Medicine, The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, P.R. China
| | - Yuanqing Song
- Center for Medical Research on Innovation and Translation, Institute of Clinical Medicine, The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, P.R. China
| | - Xingya Jiang
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 511442, P.R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P.R. China
- Guangdong Provincial Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, P.R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, P.R. China
| | - Bujie Du
- Center for Medical Research on Innovation and Translation, Institute of Clinical Medicine, The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, P.R. China
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6
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Sabri AHB, Anjani QK, Gurnani P, Domínguez-Robles J, Moreno-Castellanos N, Zhao L, Hutton ARJ, Donnelly RF. Fabrication and characterisation of poly(sulfonated) and poly(sulfonic acid) dissolving microneedles for delivery of antibiotic and antifungal agents. Int J Pharm 2023; 644:123292. [PMID: 37553057 DOI: 10.1016/j.ijpharm.2023.123292] [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: 05/26/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/10/2023]
Abstract
Skin and soft tissue infections (SSTIs) arise from microbial ingress into the skin. In this study, poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (polyAMPS), which has been reported to exhibit antimicrobial properties was synthesised for the manufacture of microarray patches (MAPs). The free acid and sodium salt of polyAMPS with controlled molar masses and narrow dispersity were synthesised via reversible addition - fragmentation chain-transfer (RAFT) polymerisation reaction with a monomer conversion of over 99%, as determined by 1H NMR. The polymers were shown to be biocompatible when evaluated using a fibroblast dermal cell line while agar plating assay using cultures of C. albican demonstrated that the acid form of polyAMPS exhibited antimicrobial inhibition, which is potentiated in the presence of antimicrobial agents. The synthesised polymers were then used to fabricate dissolving MAPs, which were loaded with either ITRA or levofloxacin (LEV). The MAPs displayed acceptable mechanical resistance and punctured ex vivo skin to a depth of 600 µm. Skin deposition studies revealed that the MAPs were able to administer up to ∼ 1.9 mg of LEV (delivery efficiency: 94.7%) and ∼ 0.2 mg of ITRA (delivery efficiency: 45.9%), respectively. Collectively, the synthesis and development of this novel pharmaceutical system may offer a strategy to manage SSTIs.
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Affiliation(s)
- Akmal Hidayat Bin Sabri
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Qonita Kurnia Anjani
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Pratik Gurnani
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
| | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | | | - Li Zhao
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Aaron R J Hutton
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK.
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Pichon TJ, White NJ, Pun SH. ENGINEERED INTRAVENOUS THERAPIES FOR TRAUMA. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2023; 27:100456. [PMID: 37456984 PMCID: PMC10343715 DOI: 10.1016/j.cobme.2023.100456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Trauma leading to severe hemorrhage and shock on average kills patients within 3 to 6 hours after injury. With average prehospital transport times reaching 1-6 hours in low- to middle-income countries, stopping the bleeding and reversing hemorrhagic shock is vital. First-generation intravenous hemostats rely on traditional drug delivery platforms, such as self-assembling systems, fabricated nanoparticles, and soluble polymers due to their active targeting, biodistribution, and safety. We discuss some challenges translating these therapies to patients, as very few have successfully made it through preclinical evaluation in large-animals, and none have translated to the clinic. Finally, we discuss the physiology of hemorrhagic shock, highlight a new low volume resuscitant (LVR) PEG-20k, and end with considerations for the rational design of LVRs.
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Affiliation(s)
- Trey J. Pichon
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, 3720 15 Avenue NE, Box 355061, Seattle, Washington 98105, United States
- Resuscitation Engineering Science Unit (RESCU), Harborview Research and Training Building, Seattle, Washington 98104, United States
| | - Nathan J. White
- Department of Emergency Medicine, University of Washington School of Medicine, Seattle, Washington 98105, United States
- Resuscitation Engineering Science Unit (RESCU), Harborview Research and Training Building, Seattle, Washington 98104, United States
| | - Suzie H. Pun
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, 3720 15 Avenue NE, Box 355061, Seattle, Washington 98105, United States
- Resuscitation Engineering Science Unit (RESCU), Harborview Research and Training Building, Seattle, Washington 98104, United States
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Abdelghafour MM, Deák Á, Kiss T, Budai-Szűcs M, Katona G, Ambrus R, Lőrinczi B, Keller-Pintér A, Szatmári I, Szabó D, Rovó L, Janovák L. Self-Assembling Injectable Hydrogel for Controlled Drug Delivery of Antimuscular Atrophy Drug Tilorone. Pharmaceutics 2022; 14:2723. [PMID: 36559217 PMCID: PMC9782908 DOI: 10.3390/pharmaceutics14122723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
A two-component injectable hydrogel was suitably prepared for the encapsulation and prolonged release of tilorone which is an antimuscular atrophy drug. The rapid (7-45 s, depending on the polymer concentration) in situ solidifications of the hydrogel were evoked by the evolving Schiff-base bonds between the aldehyde groups of modified PVA (4-formyl benzoate PVA, PVA-CHO, 5.9 mol% functionalization degree) and the amino groups of 3-mercaptopropionate chitosan (CHIT-SH). The successful modification of the initial polymers was confirmed by both FTIR and NMR measurements; moreover, a new peak appeared in the FTIR spectrum of the 10% w/v PVA-CHO/CHIT-SH hydrogel at 1647 cm-1, indicating the formation of a Schiff base (-CH=N-) and confirming the interaction between the NH2 groups of CHIT-SH and the CHO groups of PVA-CHO for the formation of the dynamic hydrogel. The reaction between the NH2 and CHO groups of the modified biopolymers resulted in a significant increase in the hydrogel's viscosity which was more than one thousand times greater (9800 mPa·s) than that of the used polymer solutions, which have a viscosity of only 4.6 and 5.8 mPa·s, respectively. Furthermore, the initial chitosan was modified with mercaptopropionic acid (thiol content = 201.85 ± 12 µmol/g) to increase the mucoadhesive properties of the hydrogel. The thiolated chitosan showed a significant increase (~600 mN/mm) in adhesion to the pig intestinal membrane compared to the initial one (~300 mN/mm). The in vitro release of tilorone from the hydrogel was controlled with the crosslinking density/concentration of the hydrogel; the 10% w/v PVA-CHO/CHIT-SH hydrogel had the slowest releasing (21.7 h-1/2) rate, while the 2% w/v PVA-CHO/CHIT-SH hydrogel had the fastest releasing rate (34.6 h-1/2). Due to the characteristics of these hydrogels, their future uses include tissue regeneration scaffolds, wound dressings for skin injuries, and injectable or in situ forming drug delivery systems. Eventually, we hope that the developed hydrogel will be useful in the local treatment of muscle atrophy, such as laryngotracheal atrophy.
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Affiliation(s)
- Mohamed M. Abdelghafour
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Ágota Deák
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary
| | - Tamás Kiss
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös str. 6., H-6720 Szeged, Hungary
| | - Mária Budai-Szűcs
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös str. 6., H-6720 Szeged, Hungary
| | - Gábor Katona
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös str. 6., H-6720 Szeged, Hungary
| | - Rita Ambrus
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös str. 6., H-6720 Szeged, Hungary
| | - Bálint Lőrinczi
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös str. 6, H-6720 Szeged, Hungary
| | - Anikó Keller-Pintér
- Department of Biochemistry, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary
| | - István Szatmári
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös str. 6, H-6720 Szeged, Hungary
| | - Diána Szabó
- Department of Oto-Rhino-Laryngology and Head & Neck Surgery, University of Szeged, Tisza Lajos krt. 111, H-6724 Szeged, Hungary
| | - László Rovó
- Department of Oto-Rhino-Laryngology and Head & Neck Surgery, University of Szeged, Tisza Lajos krt. 111, H-6724 Szeged, Hungary
| | - László Janovák
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary
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9
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The clinical and translational prospects of microneedle devices, with a focus on insulin therapy for diabetes mellitus as a case study. Int J Pharm 2022; 628:122234. [PMID: 36191817 DOI: 10.1016/j.ijpharm.2022.122234] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 09/01/2022] [Accepted: 09/21/2022] [Indexed: 11/20/2022]
Abstract
Microneedles have the clinical advantage of being able to deliver complex drugs across the skin in a convenient and comfortable manner yet haven't successfully transitioned to medical practice. Diabetes mellitus is a complicated disease, which is commonly treated with multiple daily insulin injections, contributing to poor treatment adherence. Firstly, this review determines the clinical prospect of microneedles, alongside considerations that ought to be addressed before microneedle technology can be translated from bench to bedside. Thereafter, we use diabetes as a case study to consider how microneedle-based-technology may be successfully harnessed. Here, publications referring to insulin microneedles were evaluated to understand whether insertion efficiency, angle of insertion, successful dose delivery, dose adjustability, material biocompatibility and therapeutic stability are being addressed in early stage research. Moreover, over 3,000 patents from 1970-2019 were reviewed with the search term '"microneedle" AND "insulin"' to understand the current status of the field. In conclusion, the reporting of early stage microneedle research demonstrated a lack of consistency relating to the translational factors addressed. Additionally, a more rational design, based on a patient-centred approach is required before microneedle-based delivery systems can be used to revolutionise the lives of people living with diabetes following regulatory approval.
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10
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Obasi HC, Ijaz K, Akhtar H, Ali A, Khalid H, Khan AF, Chaudhry AA. Fabrication of antimicrobial electrospun mats using polyvinyl alcohol–zinc oxide blends. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04164-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Sharaf NS, Shetta A, Elhalawani JE, Mamdouh W. Applying Box-Behnken Design for Formulation and Optimization of PLGA-Coffee Nanoparticles and Detecting Enhanced Antioxidant and Anticancer Activities. Polymers (Basel) 2021; 14:144. [PMID: 35012166 PMCID: PMC8747114 DOI: 10.3390/polym14010144] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/12/2021] [Accepted: 12/15/2021] [Indexed: 11/25/2022] Open
Abstract
In an attempt to prove biological activity enhancement upon particle size reduction to the nanoscale, coffee (Cf) was chosen to be formulated into poly(lactic-co-glycolic) acid (PLGA) nanoparticles (NPs) using the single emulsion-solvent evaporation (SE-SE) method via Box-Behnken Design (BBD) to study the impact of certain process and formulation parameters on the particle size and size homogeneity, surface stability and encapsulation efficiency (EE%). The coffee-loaded PLGA (PLGA-Cf) NPs were characterized by different methods to aid in selecting the optimum formulation conditions. The desirable physicochemical characteristics involved small particle sizes with an average of 318.60 ± 5.65 nm, uniformly distributed within a narrow range (PDI of 0.074 ± 0.015), with considerable stability (Zeta Potential of -20.50 ± 0.52 mV) and the highest EE% (85.92 ± 4.01%). The antioxidant and anticancer activities of plain PLGA NPs, pure Cf and the optimum PLGA-Cf NPs, were evaluated using 2,2-Diphenyl-1-picryl-hydrazyl (DPPH) and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays, respectively. As a result of nano-encapsulation, antioxidant activity was enhanced by 26.5%. Encapsulated Cf showed higher anticancer potency than pure Cf against different cancerous cell lines with an increase of 86.78%, 78.17%, 85.84% and 84.84% against MCF-7, A-549, HeLa and HepG-2, respectively. The in vitro release followed the Weibull release model with slow and biphasic release profile in both tested pH media, 7.4 and 5.5.
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Affiliation(s)
| | | | | | - Wael Mamdouh
- Department of Chemistry, School of Sciences and Engineering, The American University in Cairo (AUC), AUC Avenue, P.O. Box 74, New Cairo 11835, Egypt; (N.S.S.); (A.S.); (J.E.E.)
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12
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Weimer P, Rossi RC, Koester LS. Dissolving Microneedles Developed in Association with Nanosystems: A Scoping Review on the Quality Parameters of These Emerging Systems for Drug or Protein Transdermal Delivery. Pharmaceutics 2021; 13:pharmaceutics13101601. [PMID: 34683895 PMCID: PMC8538119 DOI: 10.3390/pharmaceutics13101601] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 12/20/2022] Open
Abstract
The largest organ of the body provides the main challenge for the transdermal delivery of lipophilic or high molecular weight drugs. To cross the main barrier of the skin, the stratum corneum, many techniques have been developed and improved. In the last 20 years, the association of microneedles with nanostructured systems has gained prominence for its versatility and for enabling targeted drug delivery. Currently, the combination of these mechanisms is pointed to as an emerging technology; however, some gaps need to be answered to transcend the development of these devices from the laboratory scale to the pharmaceutical market. It is known that the lack of regulatory guidelines for quality control is a hindrance to market conquest. In this context, this study undertakes a scoping review of original papers concerning methods applied to evaluate both the quality and drug/protein delivery of dissolving and hydrogel-forming microneedles developed in association with nanostructured systems.
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Affiliation(s)
- Patrícia Weimer
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil;
| | - Rochele Cassanta Rossi
- Programa de Pós-Graduação em Nutrição e Alimentos, Universidade do Vale do Rio dos Sinos (UNISINOS), São Leopoldo 93022-000, Brazil;
| | - Letícia Scherer Koester
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil;
- Correspondence: ; Tel.: +55-51-33085278; Fax: +55-51-33085437
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13
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Thermosensitive Poloxamer- graft-Carboxymethyl Pullulan: A Potential Injectable Hydrogel for Drug Delivery. Polymers (Basel) 2021; 13:polym13183025. [PMID: 34577926 PMCID: PMC8466796 DOI: 10.3390/polym13183025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/26/2021] [Accepted: 09/03/2021] [Indexed: 02/07/2023] Open
Abstract
A thermosensitive copolymer composed of amphiphilic triblock copolymer, poloxamer 407, grafted on hydrophilic pullulan with pendant carboxymethyl groups (CMP) was prepared and characterized. The structure of the new copolymer was assessed by Fourier transform infrared (FT-IR) and 1H nuclear magnetic resonance (1H NMR) spectroscopy. The content of the poloxamer in the grafted copolymer was 83.8% (w/w). The effect of the copolymer concentration on the gelation behavior was analyzed by the vertical method and rheological tests; the gel phase of the copolymer occurred at a lower concentration (11%, w/v) as compared with poloxamer (18%, w/v). The starting gelation time under the simulated physiological conditions (phosphate buffer with a pH of 7.4, at 37 °C) was sensitive on the rest temperature before the test, this being 990 s and 280 s after 24 h rest at 4 °C and 20 °C, respectively. The rheological tests evidenced a high elasticity and excellent ability of the copolymer to recover the initial structure after the removal of the applied force or external stimuli. Moreover, the hydrogel has proved a sustained release of amoxicillin (taken as a model drug) over 168 h. Taken together, the results clearly indicate that this copolymer can be used as an injectable hydrogel.
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14
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Sabri AH, Cater Z, Gurnani P, Ogilvie J, Segal J, Scurr DJ, Marlow M. Intradermal delivery of imiquimod using polymeric microneedles for basal cell carcinoma. Int J Pharm 2020; 589:119808. [DOI: 10.1016/j.ijpharm.2020.119808] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/07/2020] [Accepted: 08/20/2020] [Indexed: 01/06/2023]
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15
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Tekko IA, Permana AD, Vora L, Hatahet T, McCarthy HO, Donnelly RF. Localised and sustained intradermal delivery of methotrexate using nanocrystal-loaded microneedle arrays: Potential for enhanced treatment of psoriasis. Eur J Pharm Sci 2020; 152:105469. [PMID: 32679177 PMCID: PMC7417809 DOI: 10.1016/j.ejps.2020.105469] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/27/2020] [Accepted: 07/13/2020] [Indexed: 12/19/2022]
Abstract
Methotrexate (MTX), typically used as its sodium salt (MTX Na), is a first-line treatments for moderate to severe psoriasis, showing good efficacy. However, its systemic administration is associated with many side effects. Intradermal delivery into psoriatic tissue could offer an alternative approach. However, successful intradermal administration of MTX Na is currently precluded by its physicochemical properties. Moreover, due to its hydrophilic nature, MTX Na is swiftly cleared from the target tissue, necessitating frequent dosing which may affect patient compliance. To address these limitations, we investigated the combination of nanocrystal (NC) and dissolving microneedle (MN) technologies as an alternative approach for localised and sustained intradermal delivery of MTX Na. Poorly water-soluble MTX nanocrystals (MTX NC) were produced by a bottom-up technique with a mean particle size of 678 ± 15 nm. Sustained in vitro drug release was observed over 72 h. The MTX NC were then incorporated into the shafts of dissolving MN arrays with a drug loading of 2.48 mg/array. The MTX NC-loaded MN arrays exhibited satisfactory mechanical strength and insertion capabilities in the skin-simulant Parafilm M® and their shafts dissolved entirely in less than 20 min after insertion into excised neonatal porcine skin. Importantly, in vivo studies in Sprague Dawley rats revealed that the MN arrays were able to deposit approximately 25.1% of the loaded MTX NC in the skin, which acted, in turn, as a drug depot and released the MTX in a sustained manner over 72 h, while minimising MTX systemic exposure. Indeed, 24 h from MN application, 312.70 ± 161.95 µg/g of MTX was retained in the skin at the application site. This was approximately 322-fold higher than the amount of MTX (0.942 ± 0.59 µg/g) retained in the skin after oral administration of MTX Na. Interestingly, even after 72 h after MN application, around 12.5% of the MTX NC deposited in the skin by the MN was retained. In contrast, the maximal blood concentration of MTX achieved following MN application, was only 40% of that measured after oral administration of MTX Na. Accordingly, MTX NC-loaded dissolving MN arrays could be a promising approach for effective localised and sustained intradermal delivery of MTX as a potential enhanced treatment for psoriasis.
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Affiliation(s)
- Ismaiel A Tekko
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast, BT9 7BL, Northern Ireland, United Kingdom; Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Aleppo University, Aleppo, Syria
| | - Andi Dian Permana
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast, BT9 7BL, Northern Ireland, United Kingdom; Department of Pharmaceutics, Faculty of Pharmacy, Hasanuddin University, Makassar, Indonesia
| | - Lalitkumar Vora
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast, BT9 7BL, Northern Ireland, United Kingdom
| | - Taher Hatahet
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast, BT9 7BL, Northern Ireland, United Kingdom
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast, BT9 7BL, Northern Ireland, United Kingdom
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast, BT9 7BL, Northern Ireland, United Kingdom.
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16
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Asikainen S, Seppälä J. Photo-crosslinked anhydride-modified polyester and -ethers for pH-sensitive drug release. Eur J Pharm Biopharm 2020; 150:33-42. [PMID: 32142953 DOI: 10.1016/j.ejpb.2020.02.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/31/2020] [Accepted: 02/29/2020] [Indexed: 11/17/2022]
Abstract
Photo-crosslinkable polymers have a great potential for the delivery of sensitive drugs. They allow preparation of drug releasing devices by photo-crosslinking, thus avoiding high processing temperatures. In this study, the hydrolysis behavior and drug release of three different photo-crosslinkable poly(ether anhydride)s and one poly(ester anhydride) were investigated. Three-arm poly(ethylene glycol) or polycaprolactone was reacted with succinic anhydride to obtain carboxylated macromers, and further functionalized with methacrylic anhydride to form methacrylated marcromers with anhydride linkages. The synthetized macromers were used to prepare photo-crosslinked matrices with different hydrolytic degradation times for active agent release purposes. The hydrolysis was clearly pH-sensitive: polymer networks degraded slowly in acidic conditions, and degradation rate increased as the pH shifted towards basic conditions. Drug release was studied with two water-soluble model drugs lidocaine (234 mol/g) and vitamin B12 (1355 g/mol). Vitamin B12 was released mainly due to polymer network degradation, whereas smaller molecule lidocaine was released also through diffusion and swelling of polymer network. Only a small amount of vitamin B12 was released in acidic conditions (pH 1.3 and pH 2.1). These polymers have potential in colon targeted drug delivery as the polymer could protect sensitive drugs from acidic conditions in the stomach, and the drug would be released as the conditions change closer to neutral pH in the intestine.
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Affiliation(s)
- Sanja Asikainen
- Polymer Technology, Department of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University, Finland
| | - Jukka Seppälä
- Polymer Technology, Department of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University, Finland.
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17
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Maksimenko O, Malinovskaya J, Shipulo E, Osipova N, Razzhivina V, Arantseva D, Yarovaya O, Mostovaya U, Khalansky A, Fedoseeva V, Alekseeva A, Vanchugova L, Gorshkova M, Kovalenko E, Balabanyan V, Melnikov P, Baklaushev V, Chekhonin V, Kreuter J, Gelperina S. Doxorubicin-loaded PLGA nanoparticles for the chemotherapy of glioblastoma: Towards the pharmaceutical development. Int J Pharm 2019; 572:118733. [PMID: 31689481 DOI: 10.1016/j.ijpharm.2019.118733] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/31/2019] [Accepted: 09/24/2019] [Indexed: 10/25/2022]
Abstract
Brain delivery of drugs by nanoparticles is a promising strategy that could open up new possibilities for the chemotherapy of brain tumors. As demonstrated in previous studies, the loading of doxorubicin in poly(lactide-co-glycolide) nanoparticles coated with poloxamer 188 (Dox-PLGA) enabled the brain delivery of this cytostatic that normally cannot penetrate across the blood-brain barrier in free form. The Dox-PLGA nanoparticles produced a very considerable anti-tumor effect against the intracranial 101.8 glioblastoma in rats, thus representing a promising candidate for the chemotherapy of brain tumors that warrants clinical evaluation. The objective of the present study, therefore, was the optimization of the Dox-PLGA formulation and the development of a pilot scale manufacturing process. Optimization of the preparation procedure involved the alteration of the technological parameters such as replacement of the particle stabilizer PVA 30-70 kDa with a presumably safer low molecular mass PVA 9-10 kDa as well as the modification of the external emulsion medium and the homogenization conditions. The optimized procedure enabled an increase of the encapsulation efficiency from 66% to >90% and reduction of the nanoparticle size from 250 nm to 110 nm thus enabling the sterilization by membrane filtration. The pilot scale process was characterized by an excellent reproducibility with very low inter-batch variations. The in vitro hematotoxicity of the nanoparticles was negligible at therapeutically relevant concentrations. The anti-tumor efficacy of the optimized formulation and the ability of the nanoparticles to penetrate into the intracranial tumor and normal brain tissue were confirmed by in vivo experiments.
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Affiliation(s)
- Olga Maksimenko
- Drugs Technology LLC, Rabochaya ul. 2A, 141400 Khimki, Moscow Region, Russia
| | - Julia Malinovskaya
- Drugs Technology LLC, Rabochaya ul. 2A, 141400 Khimki, Moscow Region, Russia; Lomonosov Moscow State University, ul. Leninskiye Gory, 119991 Moscow, Russia
| | - Elena Shipulo
- Drugs Technology LLC, Rabochaya ul. 2A, 141400 Khimki, Moscow Region, Russia
| | - Nadezhda Osipova
- Drugs Technology LLC, Rabochaya ul. 2A, 141400 Khimki, Moscow Region, Russia
| | - Victoria Razzhivina
- Drugs Technology LLC, Rabochaya ul. 2A, 141400 Khimki, Moscow Region, Russia
| | - Diana Arantseva
- Drugs Technology LLC, Rabochaya ul. 2A, 141400 Khimki, Moscow Region, Russia
| | - Oksana Yarovaya
- D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia
| | - Ulyana Mostovaya
- D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia
| | - Alexander Khalansky
- Institute of Human Morphology, Russian Academy of Sciences, ul. Tsurupy 3, 117418 Moscow, Russia
| | - Vera Fedoseeva
- Institute of Human Morphology, Russian Academy of Sciences, ul. Tsurupy 3, 117418 Moscow, Russia
| | - Anna Alekseeva
- Institute of Human Morphology, Russian Academy of Sciences, ul. Tsurupy 3, 117418 Moscow, Russia; I.M. Sechenov First Moscow State Medical University, B. Pirogovskaya ul., 19-1, 119146 Moscow, Russia
| | - Ludmila Vanchugova
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky pr. 29, 19991 Moscow, Russia
| | - Marina Gorshkova
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky pr. 29, 19991 Moscow, Russia
| | - Elena Kovalenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya, 16/10, bldg 7, 117198 Moscow, Russia
| | - Vadim Balabanyan
- Drugs Technology LLC, Rabochaya ul. 2A, 141400 Khimki, Moscow Region, Russia; Lomonosov Moscow State University, ul. Leninskiye Gory, 119991 Moscow, Russia
| | - Pavel Melnikov
- V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Health of the Russian Federation, Kropotkinskiy per. 23, 119034 Moscow, Russia
| | - Vladimir Baklaushev
- Federal Research and Clinical Center of Specialized Medical Care and Medical Technologies, Federal Biomedical Agency of the Russian Federation, Orekhoviy blvd. 28, 115682 Moscow, Russia
| | - Vladimir Chekhonin
- V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Health of the Russian Federation, Kropotkinskiy per. 23, 119034 Moscow, Russia
| | - Jörg Kreuter
- I.M. Sechenov First Moscow State Medical University, B. Pirogovskaya ul., 19-1, 119146 Moscow, Russia; Institute of Pharmaceutical Technology, Biocenter, Goethe University, Max-von-Laue-Str. 9, 60438 Frankfurt/Main, Germany
| | - Svetlana Gelperina
- Drugs Technology LLC, Rabochaya ul. 2A, 141400 Khimki, Moscow Region, Russia.
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18
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Wang C, Wang J, Zhang X, Yu S, Wen D, Hu Q, Ye Y, Bomba H, Hu X, Liu Z, Dotti G, Gu Z. In situ formed reactive oxygen species-responsive scaffold with gemcitabine and checkpoint inhibitor for combination therapy. Sci Transl Med 2019; 10:10/429/eaan3682. [PMID: 29467299 DOI: 10.1126/scitranslmed.aan3682] [Citation(s) in RCA: 392] [Impact Index Per Article: 78.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 07/18/2017] [Accepted: 11/15/2017] [Indexed: 12/12/2022]
Abstract
Patients with low-immunogenic tumors respond poorly to immune checkpoint blockade (ICB) targeting the programmed death-1 (PD-1)/programmed death-ligand 1 (PD-L1) pathway. Conversely, patients responding to ICB can experience various side effects. We have thus engineered a therapeutic scaffold that, when formed in situ, allows the local release of gemcitabine (GEM) and an anti-PD-L1 blocking antibody (aPDL1) with distinct release kinetics. The scaffold consists of reactive oxygen species (ROS)-degradable hydrogel that releases therapeutics in a programmed manner within the tumor microenvironment (TME), which contains abundant ROS. We found that the aPDL1-GEM scaffold elicits an immunogenic tumor phenotype and promotes an immune-mediated tumor regression in the tumor-bearing mice, with prevention of tumor recurrence after primary resection.
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Affiliation(s)
- Chao Wang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jinqiang Wang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Xudong Zhang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Shuangjiang Yu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Di Wen
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Quanyin Hu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yanqi Ye
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Hunter Bomba
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Xiuli Hu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA
| | - Zhuang Liu
- Institute of Functional Nano and Soft Materials, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Gianpietro Dotti
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Zhen Gu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA. .,Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.,Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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19
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Haryadi BM, Hafner D, Amin I, Schubel R, Jordan R, Winter G, Engert J. Nonspherical Nanoparticle Shape Stability Is Affected by Complex Manufacturing Aspects: Its Implications for Drug Delivery and Targeting. Adv Healthc Mater 2019; 8:e1900352. [PMID: 31410996 DOI: 10.1002/adhm.201900352] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/05/2019] [Indexed: 02/04/2023]
Abstract
The shape of nanoparticles is known recently as an important design parameter influencing considerably the fate of nanoparticles with and in biological systems. Several manufacturing techniques to generate nonspherical nanoparticles as well as studies on in vitro and in vivo effects thereof have been described. However, nonspherical nanoparticle shape stability in physiological-related conditions and the impact of formulation parameters on nonspherical nanoparticle resistance still need to be investigated. To address these issues, different nanoparticle fabrication methods using biodegradable polymers are explored to produce nonspherical nanoparticles via the prevailing film-stretching method. In addition, systematic comparisons to other nanoparticle systems prepared by different manufacturing techniques and less biodegradable materials (but still commonly utilized for drug delivery and targeting) are conducted. The study evinces that the strong interplay from multiple nanoparticle properties (i.e., internal structure, Young's modulus, surface roughness, liquefaction temperature [glass transition (Tg ) or melting (Tm )], porosity, and surface hydrophobicity) is present. It is not possible to predict the nonsphericity longevity by merely one or two factor(s). The most influential features in preserving the nonsphericity of nanoparticles are existence of internal structure and low surface hydrophobicity (i.e., surface-free energy (SFE) > ≈55 mN m-1 , material-water interfacial tension <6 mN m-1 ), especially if the nanoparticles are soft (<1 GPa), rough (Rrms > 10 nm), porous (>1 m2 g-1 ), and in possession of low bulk liquefaction temperature (<100 °C). Interestingly, low surface hydrophobicity of nanoparticles can be obtained indirectly by the significant presence of residual stabilizers. Therefore, it is strongly suggested that nonsphericity of particle systems is highly dependent on surface chemistry but cannot be appraised separately from other factors. These results and reviews allot valuable guidelines for the design and manufacturing of nonspherical nanoparticles having adequate shape stability, thereby appropriate with their usage purposes. Furthermore, they can assist in understanding and explaining the possible mechanisms of nonspherical nanoparticles effectivity loss and distinctive material behavior at the nanoscale.
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Affiliation(s)
- Bernard Manuel Haryadi
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
| | - Daniel Hafner
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Ihsan Amin
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Rene Schubel
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Rainer Jordan
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Gerhard Winter
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
| | - Julia Engert
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
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20
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Choi YJ, Jun YJ, Kim DY, Yi HG, Chae SH, Kang J, Lee J, Gao G, Kong JS, Jang J, Chung WK, Rhie JW, Cho DW. A 3D cell printed muscle construct with tissue-derived bioink for the treatment of volumetric muscle loss. Biomaterials 2019; 206:160-169. [PMID: 30939408 DOI: 10.1016/j.biomaterials.2019.03.036] [Citation(s) in RCA: 172] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/02/2019] [Accepted: 03/23/2019] [Indexed: 12/21/2022]
Abstract
Volumetric muscle loss (VML) is an irrecoverable injury associated with muscle loss greater than 20%. Although hydrogel-based 3D engineered muscles and the decellularized extracellular matrix (dECM) have been considered for VML treatment, they have shown limited efficacy. We established a novel VML treatment with dECM bioink using 3D cell printing technology. Volumetric muscle constructs composed of cell-laden dECM bioinks were generated with a granule-based printing reservoir. The 3D cell printed muscle constructs exhibited high cell viability without generating hypoxia and enhanced de novo muscle formation in a VML rat model. To improve functional recovery, prevascularized muscle constructs that mimic the hierarchical architecture of vascularized muscles were fabricated through coaxial nozzle printing with muscle and vascular dECM bioinks. Spatially printing tissue-specific dECM bioinks offers organized microenvironmental cues for the differentiation of each cell and improves vascularization, innervation, and functional recovery. Our present results suggest that a 3D cell printing and tissue-derived bioink-based approach could effectively generate biomimetic engineered muscles to improve the treatment of VML injuries.
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Affiliation(s)
- Yeong-Jin Choi
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea; Materials Processing Innovation Research Division, Department of Advanced Biomaterials Research, Korea Institute of Materials Science (KIMS). 797 Changwon-daero, Seongsan-gu, Changwon-si, Gyeongsangnam-do, 51508, South Korea
| | - Young-Joon Jun
- Department of Plastic Surgery, The Catholic University of Korea, 222 Banpodaero, Seocho-gu, Seoul 06591, South Korea
| | - Dong Yeon Kim
- Department of Plastic Surgery, The Catholic University of Korea, 222 Banpodaero, Seocho-gu, Seoul 06591, South Korea
| | - Hee-Gyeong Yi
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea
| | - Su-Hun Chae
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea
| | - Junsu Kang
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea
| | - Juyong Lee
- Department of Computer Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea
| | - Ge Gao
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea
| | - Jeong-Sik Kong
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea
| | - Jinah Jang
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea; Department of Creative IT Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea
| | - Wan Kyun Chung
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea
| | - Jong-Won Rhie
- Department of Plastic Surgery, The Catholic University of Korea, 222 Banpodaero, Seocho-gu, Seoul 06591, South Korea.
| | - Dong-Woo Cho
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, South Korea.
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Absorption, distribution, metabolism and excretion of the biomaterials used in Nanocarrier drug delivery systems. Adv Drug Deliv Rev 2019; 143:97-114. [PMID: 31255595 DOI: 10.1016/j.addr.2019.06.008] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 06/16/2019] [Accepted: 06/25/2019] [Indexed: 12/13/2022]
Abstract
Nanocarriers (NCs) are a type of drug delivery system commonly used to regulate the pharmacokinetic and pharmacodynamic properties of drugs. Although a wide variety of NCs has been developed, relatively few have been registered for clinical trials and even fewer are clinically approved. Overt or potential toxicity, indistinct mechanisms of drug release and unsatisfactory pharmacokinetic behavior all contribute to their high failure rate during preclinical and clinical testing. These negative characteristics are not only due to the NCs themselves but also to the materials of the drug nanocarrier system (MDNS) that are released in vivo. In this article, we review the main analytical techniques used for bioassay of NCs and MDNS and their pharmacokinetics after administration by various routes. We anticipate our review will serve to improve the understanding of MDNS pharmacokinetics and facilitate the development of NC drug delivery systems.
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Methotrexate-Loaded Solid Lipid Nanoparticles: Protein Functionalization to Improve Brain Biodistribution. Pharmaceutics 2019; 11:pharmaceutics11020065. [PMID: 30717376 PMCID: PMC6409770 DOI: 10.3390/pharmaceutics11020065] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/30/2019] [Accepted: 01/30/2019] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma is the most common and invasive primary tumor of the central nervous system and normally has a negative prognosis. Biodistribution in healthy animal models is an important preliminary study aimed at investigating the efficacy of chemotherapy, as it is mainly addressed towards residual cells after surgery in a region with an intact blood⁻brain barrier. Nanoparticles have emerged as versatile vectors that can overcome the blood⁻brain barrier. In this experimental work, solid lipid nanoparticles, prepared using fatty acid coacervation, have been loaded with an active lipophilic ester of cytotoxic drug methotrexate, and functionalized with either transferrin or insulin, two proteins whose receptors are abundantly expressed on the blood⁻brain barrier. Functionalization has been achieved by grafting a maleimide moiety onto the nanoparticle's surface and exploiting its reactivity towards thiolated proteins. The nanoparticles have been tested in vitro on a blood⁻brain barrier cellular model and in vivo for biodistribution in Wistar rats. Drug metabolites, in particular 7-hydroxymethotrexate, have also been investigated in the animal model. The data obtained indicate that the functionalization of the nanoparticles improved their ability to overcome the blood⁻brain barrier when a PEG spacer between the proteins and the nanoparticle's surface was used. This is probably because this method provided improved ligand⁻receptor interactions and selectivity for the target tissue.
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Development and Characterization of a Poly (Vinyl Alcohol)/Graphene Oxide Composite Hydrogel as An Artificial Cartilage Material. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8112272] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Poly (vinyl alcohol) hydrogel (PVA-H) is expected to be a suitable artificial articular cartilage material because of its high biocompatibility. However, it is difficult to affix to the surface of a living joint because it is bioinert and its mechanical strength needs to be improved. In this study, graphene oxide (GO) subjected to two oxidation rounds was used to form a nanocomposite material and the composite hydrogel PVA-GO-H was prepared by low-temperature crystallization. Scanning electron microscope (SEM) images showed that the addition of GO can increase roughness of the hydrogel surface. Contact angle measurements showed that the surface of PVA-GO-H exhibited hydrophobicity that increased with GO concentration and not with that of PVA-H, indicating that the hydrophilic parts of PVA and GO form hydrogen bonds and the hydrophobic part of GO was exposed on the surface. Tensile tests demonstrated that Young’s modulus was enhanced on the addition of GO. Osteoblast cells showed more affinity for PVA-GO-H than PVA-H, which much more cells adhere to than to PVA-GO-H after a certain period of culturing, suggesting GO can improve the cell attachment of PVA-H. Further studies on the influence of the oxidation time of GO are still required.
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24
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Toxicological study of doxorubicin-loaded PLGA nanoparticles for the treatment of glioblastoma. Int J Pharm 2018; 554:161-178. [PMID: 30414476 DOI: 10.1016/j.ijpharm.2018.11.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 10/31/2018] [Accepted: 11/06/2018] [Indexed: 12/16/2022]
Abstract
Doxorubicin loaded in poloxamer 188-coated PLGA nanoparticles (Dox-NP + P188) was shown to produce a high antitumor effect against the experimental orthotopic 101.8 glioblastoma in rats upon intravenous administration. The objective of the present study was to evaluate the acute and chronic toxicity of this nanoformulation. The parent drug was used as a reference formulation. Acute toxicity of doxorubicin-loaded nanoparticles in mice and rats was similar to that of free doxorubicin. The chronic toxicity study was conducted in Chinchilla rabbits; the treatment regimen consisted of 30 daily intravenous injections using two dosage levels: 0.22 mg/kg/day and 0.15 mg/kg/day. The study included assessment of the body weight, hematological parameters, blood biochemical parameters, urinalysis, and pathomorphological evaluation of the internal organs. The results of the study demonstrated that the hematological, cardiac, and testicular toxicity of doxorubicin could be reduced by binding the drug to PLGA nanoparticles. Coating of PLGA nanoparticles with poloxamer 188 contributed to the reduction of cardiotoxicity. Functional and morphological abnormalities caused by the nanoparticulate doxorubicin were dose-dependent and reversible. Altogether these results provide evidence that the PLGA-based nanoformulation not only might enable the broadening of the spectrum of doxorubicin activity but also an improvement of its safety profile.
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25
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Gavrina AI, Shirmanova MV, Aksenova NA, Yuzhakova DV, Snopova LB, Solovieva AB, Тimashev PS, Dudenkova VV, Zagaynova EV. Photodynamic therapy of mouse tumor model using chlorin e6- polyvinyl alcohol complex. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 178:614-622. [DOI: 10.1016/j.jphotobiol.2017.12.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/08/2017] [Accepted: 12/12/2017] [Indexed: 01/25/2023]
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26
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Castleberry SA, Quadir MA, Sharkh MA, Shopsowitz KE, Hammond PT. Polymer conjugated retinoids for controlled transdermal delivery. J Control Release 2017; 262:1-9. [PMID: 28690160 PMCID: PMC5641977 DOI: 10.1016/j.jconrel.2017.07.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/30/2017] [Accepted: 07/05/2017] [Indexed: 10/19/2022]
Abstract
All-trans retinoic acid (ATRA), a derivative of vitamin A, is a common component in cosmetics and commercial acne creams as well as being a first-line chemotherapeutic agent. Today, formulations for the topical application of ATRA rely on creams and emulsions to incorporate the highly hydrophobic ATRA drug. These strategies, when applied to the skin, deliver ATRA as a single bolus, which is immediately taken up into the skin and contributes to many of the known adverse side effects of ATRA treatment, including skin irritation and hair loss. Herein we present a new concept in topical delivery of retinoids by covalently bonding the drug through a hydrolytically degradable ester linkage to a common hydrophilic polymer, polyvinyl alcohol (PVA), creating an amphiphilic nanomaterial that is water-soluble. This PVA bound ATRA can then act as a pro-drug and accumulate within the skin to allow for the sustained controlled delivery of active ATRA. This approach was demonstrated to release active ATRA out to 10days in vitro while significantly enhancing dermal accumulation of the ATRA in explant pig skin. In vivo we demonstrate that the pro-drug formulation reduces application site inflammation compared to free ATRA and retains the drug at the application site at measurable quantities for up to six days.
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Affiliation(s)
- Steven A Castleberry
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Koch Institute of Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, United States
| | - Mohiuddin A Quadir
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Koch Institute of Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Malak Abu Sharkh
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Kevin E Shopsowitz
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Koch Institute of Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Paula T Hammond
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Koch Institute of Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA 02139, United States.
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27
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Re-programming pullulan for targeting and controlled release of doxorubicin to the hepatocellular carcinoma cells. Eur J Pharm Sci 2017; 103:104-115. [DOI: 10.1016/j.ejps.2017.02.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/03/2017] [Accepted: 02/08/2017] [Indexed: 02/07/2023]
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28
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Cole G, McCaffrey J, Ali AA, McBride JW, McCrudden CM, Vincente-Perez EM, Donnelly RF, McCarthy HO. Dissolving microneedles for DNA vaccination: Improving functionality via polymer characterization and RALA complexation. Hum Vaccin Immunother 2016; 13:50-62. [PMID: 27846370 DOI: 10.1080/21645515.2016.1248008] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
DNA vaccination holds the potential to treat or prevent nearly any immunogenic disease, including cancer. To date, these vaccines have demonstrated limited immunogenicity in vivo due to the absence of a suitable delivery system which can protect DNA from degradation and improve transfection efficiencies in vivo. Recently, microneedles have been described as a novel physical delivery technology to enhance DNA vaccine immunogenicity. Of these devices, dissolvable microneedles promise a safe, pain-free delivery system which may simultaneously improve DNA stability within a solid matrix and increase DNA delivery compared to solid arrays. However, to date little work has directly compared the suitability of different dissolvable matrices for formulation of DNA-loaded microneedles. Therefore, the current study examined the ability of 4 polymers to formulate mechanically robust, functional DNA loaded dissolvable microneedles. Additionally, complexation of DNA to a cationic delivery peptide, RALA, prior to incorporation into the dissolvable matrix was explored as a means to improve transfection efficacies following release from the polymer matrix. Our data demonstrates that DNA is degraded following incorporation into PVP, but not PVA matrices. The complexation of DNA to RALA prior to incorporation into polymers resulted in higher recovery from dissolvable matrices, and increased transfection efficiencies in vitro. Additionally, RALA/DNA nanoparticles released from dissolvable PVA matrices demonstrated up to 10-fold higher transfection efficiencies than the corresponding complexes released from PVP matrices, indicating that PVA is a superior polymer for this microneedle application.
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Affiliation(s)
- Grace Cole
- a School of Pharmacy, Queen's University Belfast , Belfast , Northern Ireland , UK
| | - Joanne McCaffrey
- a School of Pharmacy, Queen's University Belfast , Belfast , Northern Ireland , UK
| | - Ahlam A Ali
- a School of Pharmacy, Queen's University Belfast , Belfast , Northern Ireland , UK
| | - John W McBride
- a School of Pharmacy, Queen's University Belfast , Belfast , Northern Ireland , UK
| | - Cian M McCrudden
- a School of Pharmacy, Queen's University Belfast , Belfast , Northern Ireland , UK
| | - Eva M Vincente-Perez
- a School of Pharmacy, Queen's University Belfast , Belfast , Northern Ireland , UK
| | - Ryan F Donnelly
- a School of Pharmacy, Queen's University Belfast , Belfast , Northern Ireland , UK
| | - Helen O McCarthy
- a School of Pharmacy, Queen's University Belfast , Belfast , Northern Ireland , UK
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29
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Brunchi CE, Bercea M, Morariu S, Avadanei M. Investigations on the interactions between xanthan gum and poly(vinyl alcohol) in solid state and aqueous solutions. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.09.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mohanapriya S, Mumjitha M, PurnaSai K, Raj V. Fabrication and characterization of poly(vinyl alcohol)-TiO2 nanocomposite films for orthopedic applications. J Mech Behav Biomed Mater 2016; 63:141-156. [PMID: 27371870 DOI: 10.1016/j.jmbbm.2016.06.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/03/2016] [Accepted: 06/06/2016] [Indexed: 02/06/2023]
Abstract
Poly(vinyl alcohol) (PVA) is reinforced with TiO2 nanoparticles in order to enhance thermo-mechanical stabilities, surface characteristics and osteoblastic cell adhesion. PVA-TiO2 nanocomposite films with desirable mechanical, thermal and biocompatible properties are fabricated through solution casting method followed by de-hydrothermal cross-linking treatment. The composition of TiO2 nanoparticles was standardized to achieve mechanically stable nanocomposite films, based on tensile strength measurements composition of TiO2 is determined as optimal at 3wt%. PVA-TiO2 nanocomposite films were characterized by Scanning electron microscopy, Energy dispersive spectroscopy, Atomic force microscopy, Ultra violet and Fourier transform infrared spectroscopic techniques. Elemental mapping studies substantiate incorporation of TiO2 nanoparticles within the PVA matrix. Dimensional stability evaluated by soaking films in SBF for 24h insinuates the role of TiO2 in the direction of controlling degree of swelling. In-vitro bioactivity test and cell adhesion results also predict that presence of TiO2 is advantageous to enhance apatite growth and promote cell-substrate interaction. SEM studies illustrate improved surface morphology of PVA-TiO2 nanocomposite film with homogenously distributed TiO2 nanoparticles, which help to enhance thermo-mechanical behavior. TiO2 nanoparticles construct cell-adhesive hydrophilic nano-domains that act as potential cell adhesion sites and promotes osteointegration. Bio compatibility studies proved that thermally cross-linked PVA is non-toxic in relation to PVA cross-linked with glutaraldehyde. Cytotoxicity and cell adhesion of nanocomposite films evaluated through cell viability (MMT) assay and crystal violet staining revealed that PVA-3wt% TiO2nanocomposite could act as an excellent composite and hence suitable to be used in bone implant applications.
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Affiliation(s)
- S Mohanapriya
- Advanced Materials Research Laboratory, Department of Chemistry, Periyar University, Salem 11, Tamil Nadu, India
| | - M Mumjitha
- Advanced Materials Research Laboratory, Department of Chemistry, Periyar University, Salem 11, Tamil Nadu, India
| | - K PurnaSai
- Central Leather Research Institute, Chennai, Tamil Nadu, India
| | - V Raj
- Advanced Materials Research Laboratory, Department of Chemistry, Periyar University, Salem 11, Tamil Nadu, India.
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31
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Ivens IA, Achanzar W, Baumann A, Brändli-Baiocco A, Cavagnaro J, Dempster M, Depelchin BO, Rovira ARI, Dill-Morton L, Lane JH, Reipert BM, Salcedo T, Schweighardt B, Tsuruda LS, Turecek PL, Sims J. PEGylated Biopharmaceuticals: Current Experience and Considerations for Nonclinical Development. Toxicol Pathol 2015; 43:959-83. [PMID: 26239651 DOI: 10.1177/0192623315591171] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PEGylation (the covalent binding of one or more polyethylene glycol molecules to another molecule) is a technology frequently used to improve the half-life and other pharmaceutical or pharmacological properties of proteins, peptides, and aptamers. To date, 11 PEGylated biopharmaceuticals have been approved and there is indication that many more are in nonclinical or clinical development. Adverse effects seen with those in toxicology studies are mostly related to the active part of the drug molecule and not to polyethylene glycol (PEG). In 5 of the 11 approved and 10 of the 17 PEGylated biopharmaceuticals in a 2013 industry survey presented here, cellular vacuolation is histologically observed in toxicology studies in certain organs and tissues. No other effects attributed to PEG alone have been reported. Importantly, vacuolation, which occurs mainly in phagocytes, has not been linked with changes in organ function in these toxicology studies. This article was authored through collaborative efforts of industry toxicologists/nonclinical scientists to address the nonclinical safety of large PEG molecules (>10 kilo Dalton) in PEGylated biopharmaceuticals. The impact of the PEG molecule on overall nonclinical safety assessments of PEGylated biopharmaceuticals is discussed, and toxicological information from a 2013 industry survey on PEGylated biopharmaceuticals under development is summarized. Results will contribute to the database of toxicological information publicly available for PEG and PEGylated biopharmaceuticals.
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Affiliation(s)
- Inge A Ivens
- Bayer HealthCare, San Francisco, California, USA
| | | | | | | | | | | | | | | | - Laura Dill-Morton
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts, USA
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32
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PEG — A versatile conjugating ligand for drugs and drug delivery systems. J Control Release 2014; 192:67-81. [DOI: 10.1016/j.jconrel.2014.06.046] [Citation(s) in RCA: 415] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/23/2014] [Accepted: 06/24/2014] [Indexed: 01/07/2023]
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33
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Yuan R, Zheng F, Zhong S, Tao X, Zhang Y, Gao F, Yao F, Chen J, Chen Y, Shi G. Self-assembled nanoparticles of glycyrrhetic acid-modified pullulan as a novel carrier of curcumin. Molecules 2014; 19:13305-18. [PMID: 25170951 PMCID: PMC6271224 DOI: 10.3390/molecules190913305] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 08/22/2014] [Accepted: 08/25/2014] [Indexed: 02/05/2023] Open
Abstract
Glycyrrhetic acid (GA)-modified pullulan nanoparticles (GAP NPs) were synthesized as a novel carrier of curcumin (CUR) with a degree of substitution (DS) of GA moieties within the range of 1.2-6.2 groups per hundred glucose units. In the present study, we investigated the physicochemical characteristics, release behavior, in vitro cytotoxicity and cellular uptake of the particles. Self-assembled GAP NPs with spherical shapes could readily improve the water solubility and stability of CUR. The CUR release was sustained and pH-dependent. The cellular uptake of CUR-GAP NPs was confirmed by green fluorescence in the cells. An MTT study showed CUR-GAP NPs with higher cytotoxicity in HepG2 cells than free CUR, but GAP NPs had no significant cytotoxicity. GAP is thus an excellent carrier for the solubilization, stabilization, and controlled delivery of CUR.
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Affiliation(s)
- Roufen Yuan
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Fuchun Zheng
- Department of Pharmacy, First Affiliated Hospital, Shantou University Medical College, Shantou 515041, China
| | - Shuping Zhong
- Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Xiaojun Tao
- Medical College, Hunan Normal University, Changsha 410013, China
| | - Yanmei Zhang
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Fenfei Gao
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Fen Yao
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Jiaxiong Chen
- Chinese Academy of Sciences, Shantou Marine Plants Experiment Station, Shantou 515041, China
| | - Yicun Chen
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China.
| | - Ganggang Shi
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China.
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34
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Imran ul-haq M, Lai BFL, Kizhakkedathu JN. Hybrid Polyglycerols with Long Blood Circulation: Synthesis, Biocompatibility, and Biodistribution. Macromol Biosci 2014; 14:1469-82. [DOI: 10.1002/mabi.201400152] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/28/2014] [Indexed: 02/06/2023]
Affiliation(s)
- Muhammad Imran ul-haq
- Centre for Blood Research; Department of Pathology and Laboratory Medicine; 2350 Health Sciences Mall Vancouver BC V6T 1Z3 Canada
- Department of Chemistry; The University of British Columbia; Life Sciences Centre, 2350 Health Sciences Mall Vancouver BC V6T 1Z3 Canada
| | - Benjamin F. L. Lai
- Centre for Blood Research; Department of Pathology and Laboratory Medicine; 2350 Health Sciences Mall Vancouver BC V6T 1Z3 Canada
- Department of Chemistry; The University of British Columbia; Life Sciences Centre, 2350 Health Sciences Mall Vancouver BC V6T 1Z3 Canada
| | - Jayachandran N. Kizhakkedathu
- Centre for Blood Research; Department of Pathology and Laboratory Medicine; 2350 Health Sciences Mall Vancouver BC V6T 1Z3 Canada
- Department of Chemistry; The University of British Columbia; Life Sciences Centre, 2350 Health Sciences Mall Vancouver BC V6T 1Z3 Canada
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35
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Tachibana Y, Enmi JI, Agudelo CA, Iida H, Yamaoka T. Long-Term/Bioinert Labeling of Rat Mesenchymal Stem Cells with PVA-Gd Conjugates and MRI Monitoring of the Labeled Cell Survival after Intramuscular Transplantation. Bioconjug Chem 2014; 25:1243-51. [DOI: 10.1021/bc400463t] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yoichi Tachibana
- Department of Biomedical Engineering and ‡Department of Investigative Radiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka 565-8565, Japan
| | - Jun-ichiro Enmi
- Department of Biomedical Engineering and ‡Department of Investigative Radiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka 565-8565, Japan
| | - Carlos A. Agudelo
- Department of Biomedical Engineering and ‡Department of Investigative Radiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka 565-8565, Japan
| | - Hidehiro Iida
- Department of Biomedical Engineering and ‡Department of Investigative Radiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka 565-8565, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering and ‡Department of Investigative Radiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka 565-8565, Japan
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36
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Senanayake TH, Lu Y, Bohling A, Raja S, Band H, Vinogradov SV. Encapsulation of poorly soluble drugs in polymer-drug conjugates: effect of dual-drug nanoformulations on cancer therapy. Pharm Res 2014; 31:1605-15. [PMID: 24452808 DOI: 10.1007/s11095-013-1265-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 12/09/2013] [Indexed: 01/13/2023]
Abstract
PURPOSE Current cancer chemotherapy is gradually shifting to the application of drug combinations that prevent development of drug resistance. Many anticancer drugs have poor solubility and limited oral bioavailability. Using an innovative approach, we developed dual-drug nanoformulations of a polymeric nanogel conjugate with anticancer 5-FU nucleoside analog, floxuridine (FLOX), and the second anticancer drugs, paclitaxel (PCL), or a geldanamycin analog, 17-AAG, for combination therapy. METHODS PCL or 17-AAG had been encapsulated in the cholesteryl-polyvinyl alcohol-floxuridine nanogel (CPVA-FLOX) by simple solution mixing and sonication. Dual nanodrugs formed particles with diameter 180 nm and either drug content (5-20%) that were stable and could be administered orally. Their cytotoxicity in human and mouse cancer cells was determined by MTT assay, and cellular target inhibition - by Western blot analysis. Tumor growth inhibition was evaluated using an orthotopic mouse mammary 4T1 cancer model. RESULTS CPVA-FLOX was more potent than free drug in cancer models including drug-resistant ones; while dual nanodrugs demonstrated a significant synergy (CPVA-FLOX/PCL), or showed no significant synergy (CPVA-FLOX/17-AAG) compared to free drugs (PCL or 17-AAG). Dual nanodrug CPVA-FLOX/17-AAG effect on its cellular target (HSP70) was similar to 17-AAG alone. In animal model, however, both dual nanodrugs effectively inhibited tumor growth compared to CPVA-FLOX after oral administration. CONCLUSION Oral dual-drug nanoformulations of poorly-soluble drugs proved to be a highly efficient combination anticancer therapy in preclinical studies.
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Affiliation(s)
- Thulani H Senanayake
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska, 68198-6025, USA
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Synthesis of Glycopolymer Architectures by Reversible-Deactivation Radical Polymerization. Polymers (Basel) 2013. [DOI: 10.3390/polym5020431] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Jansen J, Ghaffar A, van der Horst TNS, Mihov G, van der Wal S, Feijen J, Grijpma DW. Controlling the kinetic chain length of the crosslinks in photo-polymerized biodegradable networks. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:877-888. [PMID: 23371770 DOI: 10.1007/s10856-013-4873-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 01/18/2013] [Indexed: 06/01/2023]
Abstract
Biodegradable polymer networks were prepared by photo-initiated radical polymerization of methacrylate functionalized poly(D,L-lactide) oligomers. The kinetic chains formed in this radical polymerization are the multifunctional crosslinks of the networks. These chains are carbon-carbon chains that remain after degradation. If their molecular weight is too high these poly(methacrylic acid) chains can not be excreted by the kidneys. The effect of the photo-initiator concentration and the addition of 2-mercaptoethanol as a chain transfer agent on the molecular weight of the kinetic chains was investigated. It was found that both increasing the initiator concentration and adding 2-mercaptoethanol decrease the kinetic chain length. However, the effect of adding 2-mercaptoethanol was much larger. Some network properties such as the glass transition temperature and the swelling ratio in acetone are affected when the kinetic chain length is decreased.
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Affiliation(s)
- Janine Jansen
- Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
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Senanayake TH, Warren G, Wei X, Vinogradov SV. Application of activated nucleoside analogs for the treatment of drug-resistant tumors by oral delivery of nanogel-drug conjugates. J Control Release 2013; 167:200-9. [PMID: 23385032 DOI: 10.1016/j.jconrel.2013.01.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 01/18/2013] [Accepted: 01/26/2013] [Indexed: 01/20/2023]
Abstract
A majority of nanoencapsulated drugs that have shown promise in cancer chemotherapy are administered intravenously. Development of effective oral nanoformulations presents a very challenging medical goal. Here, we describe successful applications of innovative polymeric nanogels in the form of conjugates with activated nucleoside analogs for oral administration in cancer chemotherapy. Previously, we reported the synthesis of amphiphilic polyvinyl alcohol and dextrin-based nanogel conjugates with the phosphorylated 5-FU nucleoside Floxuridine and demonstrated their enhanced activity against regular and drug-resistant cancers (T.H. Senanayake, G. Warren, S.V. Vinogradov, Novel anticancer polymeric conjugates of activated nucleoside analogs, Bioconjug. Chem. 22 (2011) 1983-1993). In this study, we synthesized and evaluated oral applications of nanogel conjugates of a protected Gemcitabine, the drug never used in oral therapies. These conjugates were able to quickly release an active form of the drug (Gemcitabine 5'-mono-, di- and triphosphates) by specific enzymatic activities, or slowly during hydrolysis. Gemcitabine conjugates demonstrated up to 127 times higher in vitro efficacy than the free drug against various cancer cells, including the lines resistant to nucleoside analogs. Surprisingly, these nanogel-drug conjugates were relatively stable in gastric conditions and able to actively penetrate through the gastrointestinal barrier based on permeability studies in Caco-2 cell model. In tumor xenograft models of several drug-resistant human cancers, we observed an efficient inhibition of tumor growth and extended the life-span of the animals by 3 times that of the control with orally treated Gemcitabine- or Floxuridine-nanogel conjugates. Thus, we have demonstrated a potential of therapeutic nanogel conjugates with the activated and stabilized Gemcitabine as a successful oral drug form against Gemcitabine-resistant and other drug-resistant tumors.
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Affiliation(s)
- Thulani H Senanayake
- Department of Pharmaceutical Sciences and Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, Omaha, United States
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Kaneo Y, Tanaka T, Yamamoto S, Kikkawa C. Preparation and properties of acid-cleavable poly(vinyl alcohol)cis-aconityl-antitumor anthracycline conjugates. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50022-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Imran ul-haq M, Lai BF, Chapanian R, Kizhakkedathu JN. Influence of architecture of high molecular weight linear and branched polyglycerols on their biocompatibility and biodistribution. Biomaterials 2012; 33:9135-47. [DOI: 10.1016/j.biomaterials.2012.09.007] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Accepted: 09/04/2012] [Indexed: 10/27/2022]
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Kodama Y, Horishita M, Fumoto S, Mine T, Miyamoto H, Yoshikawa N, Hirata H, Sasaki H, Nakamura J, Nishida K. Effect of viscous additives on the absorption and hepatic disposition of 5-fluorouracil (5-FU) after application to liver surface in rats. J Pharm Pharmacol 2012; 64:1438-44. [PMID: 22943174 DOI: 10.1111/j.2042-7158.2012.01514.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Objectives The aim was to study the effect of viscous additives on the absorption and hepatic disposition of 5-fluorouracil (5-FU) after application to the liver surface in rats. Methods 5-FU solution with or without viscous additives was applied to the rat liver surface with a cylindrical diffusion cell. Then, blood and the remaining solution in the diffusion cell were collected at selected times, followed by excision of the liver. The excised liver was divided into three sites and assayed for 5-FU content. Key findings The absorption rate of 5-FU from the liver surface was decreased in the presence of carboxymethylcellulose sodium (CMC-Na) and polyvinyl alcohol (PVA) as compared with the control. The k(a) values of PVA 15% and CMC-Na 1% were reduced to about 80 and 67% of the control. The maximum plasma concentration of 5-FU was decreased by incorporation of viscous additives. The 5-FU concentration at the diffusion cell attachment site of the liver (site 1) plateaued at 180 min in the absence of viscous additives. On the other hand, the concentration of 5-FU at site 1 increased in a time-dependent manner until 360 min in the presence of viscous additives. Conclusion Viscous additives might be useful for retaining drugs at their application site and controlling the rate of absorption from the liver surface.
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Affiliation(s)
- Yukinobu Kodama
- Graduate School of Biomedical Sciences, Nagasaki University Department of Hospital Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
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Vugmeyster Y, Harrold J, Xu X. Absorption, distribution, metabolism, and excretion (ADME) studies of biotherapeutics for autoimmune and inflammatory conditions. AAPS JOURNAL 2012; 14:714-27. [PMID: 22798020 DOI: 10.1208/s12248-012-9385-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 06/13/2012] [Indexed: 01/09/2023]
Abstract
Biotherapeutics are becoming an increasingly common drug class used to treat autoimmune and other inflammatory conditions. Optimization of absorption, distribution, metabolism, and excretion (ADME) profiles of biotherapeutics is crucial for clinical, as well as commercial, success of these drugs. This review focuses on the common questions and challenges in ADME optimization of biotherapeutics for inflammatory conditions. For these immunomodulatory and/or immunosuppressive biotherapeutics, special consideration should be given to the assessment of the interdependency of ADME profiles, pharmacokinetic/pharmacodynamic (PK/PD) relationships, and immunogenicity profiles across various preclinical species and humans, including the interdependencies both in biology and in assay readouts. The context of usage, such as dosing regimens, extent of disease, concomitant medications, and drug product characteristics may have a direct or indirect (via modulation of immunogenicity) impact on ADME profiles of biotherapeutics. Along these lines, emerging topics include assessments of preexisting reactivity to a biotherapeutic agent, impact of immunogenicity on tissue exposure, and analysis of penetration to normal versus inflamed tissues. Because of the above complexities and interdependences, it is essential to interpret PK, PD, and anti-drug antibody results in an integrated manner. In addition, because of the competitive landscape in autoimmune and inflammatory markets, many pioneering ADME-centric protein engineering and subsequent in vivo testing (such as optimization of novel modalities to extend serum and tissue exposures and to improve bioavailability) are being conducted with biotherapeutics in this therapeutic area. However, the ultimate challenge is demonstration of the clinical relevance (or lack thereof) of modified ADME and immunogenicity profiles.
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Affiliation(s)
- Yulia Vugmeyster
- Department of Pharmacokinetics, Dynamics, and Metabolism, Pfizer Inc., One Burtt Road, Andover, Massachusetts, USA.
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Vugmeyster Y, Entrican CA, Joyce AP, Lawrence-Henderson RF, Leary BA, Mahoney CS, Patel HK, Raso SW, Olland SH, Hegen M, Xu X. Pharmacokinetic, biodistribution, and biophysical profiles of TNF nanobodies conjugated to linear or branched poly(ethylene glycol). Bioconjug Chem 2012; 23:1452-62. [PMID: 22731748 DOI: 10.1021/bc300066a] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Covalent attachment of poly(ethylene glycol) (PEG) to therapeutic proteins has been used to prolong in vivo exposure of therapeutic proteins. We have examined pharmacokinetic, biodistribution, and biophysical profiles of three different tumor necrosis factor alpha (TNF) Nanobody-40 kDa PEG conjugates: linear 1 × 40 KDa, branched 2 × 20 kDa, and 4 × 10 kDa conjugates. In accord with earlier reports, the superior PK profile was observed for the branched versus linear PEG conjugates, while all three conjugates had similar potency in a cell-based assay. Our results also indicate that (i) a superior PK profile of branched versus linear PEGs is likely to hold across species, (ii) for a given PEG size, the extent of PEG branching affects the PK profile, and (iii) tissue penetration may differ between linear and branched PEG conjugates in a tissue-specific manner. Biophysical analysis (R(g)/R(h) ratio) demonstrated that among the three protein-PEG conjugates the linear PEG conjugate had the most extended time-average conformation and the most exposed surface charges. We hypothesized that these biophysical characteristics of the linear PEG conjugate accounts for relatively less optimal masking of sites involved in elimination of the PEGylated Nanobodies (e.g., intracellular uptake and proteolysis), leading to lower in vivo exposure compared to the branched PEG conjugates. However, additional studies are needed to test this hypothesis.
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Affiliation(s)
- Yulia Vugmeyster
- Department of Pharmacokinetics, Dynamics, and Metabolism, Pfizer Inc., Andover, MA, USA.
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3D-macroporous hybrid scaffolds for tissue engineering: Network design and mathematical modeling of the degradation kinetics. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2011.11.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Accumulation of nanocarriers in the ovary: a neglected toxicity risk? J Control Release 2012; 160:105-12. [PMID: 22361117 DOI: 10.1016/j.jconrel.2012.02.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 02/07/2012] [Accepted: 02/10/2012] [Indexed: 11/23/2022]
Abstract
Several nanocarrier systems are frequently used in modern pharmaceutical therapies. Within this study a potential toxicity risk of all nanoscaled drug delivery systems was found. An accumulation of several structurally different nanocarriers but not of soluble polymers was detected in rodent ovaries after intravenous (i.v.) administration. Studies in different mouse species and Wistar rats were conducted and a high local accumulation of nanoparticles, nanocapsules and nanoemulsions in specific locations of the ovaries was found in all animals. We characterised the enrichment by in vivo and ex vivo multispectral fluorescence imaging and confocal laser scanning microscopy. The findings of this study emphasise the role of early and comprehensive in vivo studies in pharmaceutical research. Nanocarrier accumulation in the ovaries may also comprise an important toxicity issue in humans but the results might as well open a new field of targeted ovarian therapies.
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Bertrand N, Leroux JC. The journey of a drug-carrier in the body: an anatomo-physiological perspective. J Control Release 2011; 161:152-63. [PMID: 22001607 DOI: 10.1016/j.jconrel.2011.09.098] [Citation(s) in RCA: 430] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 09/28/2011] [Accepted: 09/30/2011] [Indexed: 12/18/2022]
Abstract
Recent advances in chemistry and material sciences have witnessed the emergence of an increasing number of novel and complex nanosized carriers for the delivery of drugs and imaging agents. Nevertheless, this raise in complexity does not necessarily offer more efficient systems. The lack of performance experienced by several colloidal drug carriers during the preclinical and clinical development processes can be explained by inadequate pharmacokinetic/biodistribution profiles and/or unacceptable toxicities. A comprehensive understanding of the body characteristics is necessary to predict and prevent these problems from the early stages of nanomaterial conception. In this manuscript, we review and discuss the anatomical and physiological elements which must be taken into account when designing new carriers for delivery or imaging purposes. This article gives a general overview of the main organs involved in the elimination of nanosized materials and briefly summarizes the knowledge acquired over more than 30 years of research and development in the field of drug targeting.
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Affiliation(s)
- Nicolas Bertrand
- Faculty of Pharmacy, University of Montreal, PO Box 6128, Downtown Station, Montreal, QC, Canada, H3C 3J7
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Schädlich A, Naolou T, Amado E, Schöps R, Kressler J, Mäder K. Noninvasive in Vivo Monitoring of the Biofate of 195 kDa Poly(vinyl alcohol) by Multispectral Fluorescence Imaging. Biomacromolecules 2011; 12:3674-83. [DOI: 10.1021/bm200899h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andreas Schädlich
- Martin Luther University Halle-Wittenberg, Department of Pharmaceutical Technology and Biopharmaceutics, Wolfgang-Langenbeck-Strasse 4, D-06120 Halle (Saale), Germany
| | - Toufik Naolou
- Martin Luther University Halle-Wittenberg, Department of Chemistry/Physical Chemistry of Polymers, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Elkin Amado
- Martin Luther University Halle-Wittenberg, Department of Chemistry/Physical Chemistry of Polymers, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Regina Schöps
- Martin Luther University Halle-Wittenberg, Department of Chemistry/Physical Chemistry of Polymers, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Jörg Kressler
- Martin Luther University Halle-Wittenberg, Department of Chemistry/Physical Chemistry of Polymers, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Karsten Mäder
- Martin Luther University Halle-Wittenberg, Department of Pharmaceutical Technology and Biopharmaceutics, Wolfgang-Langenbeck-Strasse 4, D-06120 Halle (Saale), Germany
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Synthesis and characterization of mannosylated pegylated polyethylenimine as a carrier for siRNA. Int J Pharm 2011; 427:123-33. [PMID: 21864664 DOI: 10.1016/j.ijpharm.2011.08.014] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 07/20/2011] [Accepted: 08/06/2011] [Indexed: 12/16/2022]
Abstract
Regulation of gene expression using small interfering RNA (siRNA) is a promising strategy for research and treatment of numerous diseases. In this study, we develop and characterize a delivery system for siRNA composed of polyethylenimine (PEI), polyethylene glycol (PEG), and mannose (Man). Cationic PEI complexes and compacts siRNA, PEG forms a hydrophilic layer outside of the polyplex for steric stabilization, and mannose serves as a cell binding ligand for macrophages. The PEI-PEG-mannose delivery system was constructed in two different ways. In the first approach, mannose and PEG chains are directly conjugated to the PEI backbone. In the second approach, mannose is conjugated to one end of the PEG chain and the other end of the PEG chain is conjugated to the PEI backbone. The PEI-PEG-mannose delivery systems were synthesized with 3.45-13.3 PEG chains and 4.7-3.0 mannose molecules per PEI. The PEI-PEG-Man-siRNA polyplexes displayed a coarse surface in Scanning Electron Microscopy (SEM) images. Polyplex sizes were found to range from 169 to 357 nm. Gel retardation assays showed that the PEI-PEG-mannose polymers are able to efficiently complex with siRNA at low N/P ratios. Confocal microscope images showed that the PEI-PEG-Man-siRNA polyplexes could enter cells and localized in the lysosomes at 2h post-incubation. Pegylation of the PEI reduced toxicity without any adverse reduction in knockdown efficiency relative to PEI alone. Mannosylation of the PEI-PEG could be carried out without any significant reduction in knockdown efficiency relative to PEI alone. Conjugating mannose to PEI via the PEG spacer generated superior toxicity and gene knockdown activity relative to conjugating mannose and PEG directly onto the PEI backbone.
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Affiliation(s)
- You Han Bae
- University of Utah, Department of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, Salt Lake City, UT 84108, USA
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