1
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Pande S. Factors affecting response variables with emphasis on drug release and loading for optimization of liposomes. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2024; 52:334-344. [PMID: 38833335 DOI: 10.1080/21691401.2024.2360634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 05/22/2024] [Indexed: 06/06/2024]
Abstract
Drug delivery through Liposomes has shown tremendous potential in terms of the therapeutic application of nanoparticles. There are several drug-loaded liposomal formulations approved for clinical use that help mitigate harmful effects of life-threatening diseases. Developments in the field of liposomal formulations and drug delivery have made it possible for clinicians and researchers to find therapeutic solutions for complicated medical conditions. A key aspect in the development of drug-loaded liposomes is a careful review of optimization techniques to improve the overall formulation stability and efficacy. Optimization studies help in improving/modulating the various properties of drug-loaded liposomes and are vital for the development of this class of delivery systems. A comprehensive overview of the various process variables and factors involved in the optimization of drug-loaded liposomes is presented in this review. The influence of different independent variables on drug release and loading properties with the application of a statistical experimental design is also explained in this article.
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Affiliation(s)
- Shantanu Pande
- Drug Product Technical Services, Wave Life Sciences, MA, USA
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2
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Ismail EA, Omolo CA, Gafar MA, Khan R, Nyandoro VO, Yakubu ES, Mackraj I, Tageldin A, Govender T. Novel peptide and hyaluronic acid coated biomimetic liposomes for targeting bacterial infections and sepsis. Int J Pharm 2024; 662:124493. [PMID: 39048042 DOI: 10.1016/j.ijpharm.2024.124493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 07/12/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
Sepsis is a life-threatening syndrome resulting from an imbalanced immune response to severe infections. Despite advances in nanomedicines, effective treatments for sepsis are still lacking. Herein, vancomycin free base (VCM)-loaded dual functionalized biomimetic liposomes based on a novel TLR4-targeting peptide (P3) and hyaluronic acid (HA) (HA-P3-Lipo) were developed to enhance sepsis therapy. The nanocarrier revealed appropriate physicochemical parameters, good stability, and biocompatibility. The release of VCM from HA-P3-Lipo was found to be sustained with 76 % VCM released in 48 h. The biomimicry was elucidated by in silico tools and MST and results confirmed strong binding between the system and TLR4. Furthermore, HA-P3-Lipo revealed 2-fold enhanced antibacterial activity against S. aureus, sustained antibacterial activity against MRSA over 72 h and 5-fold better MRSA biofilm inhibition compared to bare VCM. Bacterial-killing kinetics and flow cytometry confirmed the superiority of HA-P3-Lipo in eliminating MRSA faster than VCM. The in vivo potential of the nanocarrier was elucidated in an MRSA-induced sepsis mice model, and the results confirmed the superiority of HA-P3-Lipo compared to free VCM in eliminating bacteria and down-regulating the proinflammatory markers. Therefore, HA-P3-Lipo exhibits potential as a promising novel multi-functional nanosystem against sepsis and could significantly contribute to the transformation of sepsis therapy.
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Affiliation(s)
- Eman A Ismail
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa; Department of Pharmaceutics, Faculty of Pharmacy, University of Gezira, Wad Medani, Sudan
| | - Calvin A Omolo
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa; United States International University-Africa, School of Pharmacy and Health Sciences, Department of Pharmaceutics, P. O. Box 14634-00800, Nairobi, Kenya.
| | - Mohammed A Gafar
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Rene Khan
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Vincent O Nyandoro
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa; School of Pharmacy, Kabarak University, P.O BOX Private bag 20157, Nakuru, Kenya
| | - Elliasu S Yakubu
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (SAMRC), Cape Town 7505, South Africa
| | - Irene Mackraj
- Discipline of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Abdelrahman Tageldin
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa.
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Vatankhah M, Dadashzadeh S, Mahboubi A, Haeri A, Jandaghi Alaee K, Mostafavi Naeini SB, Abbasian Z. Preparation of multivesicular liposomes for the loco-regional delivery of Vancomycin hydrochloride using active loading method: drug release and antimicrobial properties. J Liposome Res 2024; 34:77-87. [PMID: 37287348 DOI: 10.1080/08982104.2023.2220805] [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: 11/25/2022] [Accepted: 05/29/2023] [Indexed: 06/09/2023]
Abstract
Over the last few years, among controlled-release delivery systems, multivesicular liposomes (MVLs) have attracted attention due to their unique benefits as a loco-regional drug delivery system. Considering the clinical limitations of the current treatment strategies for osteomyelitis, MVLs can be a suitable carrier for the local delivery of effective antibiotics. This study aimed to prepare vancomycin hydrochloride (VAN HL) loaded MVLs using the active loading method which to the best of our knowledge has not been previously reported. Empty MVLS were prepared by the double emulsion (w/o/w) method and VAN HL was loaded into the prepared liposomes by the ammonium gradient method. After full characterization, the release profile of VAN HL from MVLs was assessed at two different pH values (5.5 and 7.4), and compared with the release profile of the free drug and also passively loaded MVLs. In vitro antimicrobial activities were evaluated using the disc diffusion method. Our results demonstrated that the encapsulation efficiency was higher than 90% in the optimum actively loaded MVL. The free VAN HL was released within 6-8 h, while the passively loaded MVLs and the optimum actively loaded MVL formulation released the drug in 6 days and up to 19 days, respectively. The released drug showed effective antibacterial activity against osteomyelitis-causing pathogens. In conclusion, the prepared formulation offered the advantages of sustained-release properties, appropriate particle size as well as being composed of biocompatible materials, and thus could be a promising candidate for the loco-regional delivery of VAN HL and the management of osteomyelitis.
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Affiliation(s)
- Melody Vatankhah
- Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Simin Dadashzadeh
- Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Mahboubi
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azadeh Haeri
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences
| | - Kimia Jandaghi Alaee
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Baubak Mostafavi Naeini
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Abbasian
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Wang X, Cai H, Huang X, Lu Z, Zhang L, Hu J, Tian D, Fu J, Zhang G, Meng Y, Zheng G, Chang C. Formulation and evaluation of a two-stage targeted liposome coated with hyaluronic acid for improving lung cancer chemotherapy and overcoming multidrug resistance. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023; 34:1928-1951. [PMID: 37060335 DOI: 10.1080/09205063.2023.2201815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 03/29/2023] [Indexed: 04/16/2023]
Abstract
Multidrug resistance (MDR) has emerged as a prominent challenge contributing to the ineffectiveness of chemotherapy in treating non-small cell lung cancer (NSCLC) patients. Currently, mitochondria of cancer cells are identified as a promising target for overcoming MDR due to their crucial role in intrinsic apoptosis pathway and energy supply centers. Here, a two-stage targeted liposome (HA/TT LP/PTX) was successfully developed via a two-step process: PTX-loaded cationic liposome (TT LP/PTX) were formulated by lipid film hydration & ultrasound technique, followed by further coating with natural anionic polysaccharide hyaluronic acid (HA). TT, an amphipathic polymer conjugate of triphenylphosphine (TPP)-tocopheryl polyethylene glycol succinate (TPGS), was used to modify the liposomes for mitochondrial targeting. The average particle size, zeta potential and encapsulation efficiency (EE%) of HA/TT LP/PTX were found to be 153 nm, -30.3 mV and 92.1% based on the optimal prescription of HA/TT LP/PTX. Compared to cationic liposome, HA-coated liposomes showed improved stability and safety, including biological stability in serum, cytocompatibility, and lower hemolysis percentage. In drug-resistant A549/T cells, HA was shown to improve the cellular uptake of PTX through CD44 receptor-mediated endocytosis and subsequent degradation by hyaluronidase (HAase) in endosomes. Following this, the exposure of TT polymer facilitated the accumulation of PTX within the mitochondria. As a result, the function of mitochondria in A549/T cells was disturbed, leading to an increased ROS level, decreased ATP level, dissipated MMP, and increased G2/M phase arrest. This resulted in a higher apoptotic rate and stronger anticancer efficacy.
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Affiliation(s)
- Xuelian Wang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Hongye Cai
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Xinyu Huang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Zhuhang Lu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Luxi Zhang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Junjie Hu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Daizhi Tian
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Jiyu Fu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Guizhi Zhang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Yan Meng
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Guohua Zheng
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Cong Chang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
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Ahmed ETM, Hassan M, Shamma RN, Makky A, Hassan DH. Controlling the Evolution of Selective Vancomycin Resistance through Successful Ophthalmic Eye-Drop Preparation of Vancomycin-Loaded Nanoliposomes Using the Active-Loading Method. Pharmaceutics 2023; 15:1636. [PMID: 37376084 DOI: 10.3390/pharmaceutics15061636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Vancomycin is the front-line defense and drug of choice for the most serious and life-threatening methicillin-resistant Staphylococcus aureus (MRSA) infections. However, poor vancomycin therapeutic practice limits its use, and there is a consequent rise of the threat of vancomycin resistance by complete loss of its antibacterial activity. Nanovesicles as a drug-delivery platform, with their featured capabilities of targeted delivery and cell penetration, are a promising strategy to resolve the shortcomings of vancomycin therapy. However, vancomycin's physicochemical properties challenge its effective loading. In this study, we used the ammonium sulfate gradient method to enhance vancomycin loading into liposomes. Depending on the pH difference between the extraliposomal vancomycin-Tris buffer solution (pH 9) and the intraliposomal ammonium sulfate solution (pH 5-6), vancomycin was actively and successfully loaded into liposomes (up to 65% entrapment efficiency), while the liposomal size was maintained at 155 nm. Vancomycin-loaded nanoliposomes effectively enhanced the bactericidal effect of vancomycin; the minimum inhibitory concentration (MIC) value for MRSA decreased 4.6-fold. Furthermore, they effectively inhibited and killed heteroresistant vancomycin-intermediate S.aureous (h-VISA) with an MIC of 0.338 μg mL-1. Moreover, MRSA could not develop resistance against vancomycin that was loaded into and delivered by liposomes. Vancomycin-loaded nanoliposomes could be a feasible solution for enhancing vancomycin's therapeutic use and controlling the emerging vancomycin resistance.
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Affiliation(s)
- El Tahra M Ahmed
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, 6th of October City, Giza 12585, Egypt
| | - Mariam Hassan
- Department of Microbiology and Immunology, Faculty of Pharmacy Cairo University, Cairo 12613, Egypt
- Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University, New Galala City, Suez 43511, Egypt
| | - Rehab Nabil Shamma
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy Cairo University, Cairo 12613, Egypt
| | - Amna Makky
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy Cairo University, Cairo 12613, Egypt
| | - Doaa H Hassan
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, 6th of October City, Giza 12585, Egypt
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Li J, Leung SYS, Chung YL, Chow SKH, Alt V, Rupp M, Brochausen C, Chui CS, Ip M, Cheung WH, Wong RMY. Hydrogel Delivery of DNase I and Liposomal Vancomycin to Eradicate Fracture-related Methicillin-resistant Staphylococcus aureus Infection and Support Osteoporotic Fracture Healing. Acta Biomater 2023; 164:223-239. [PMID: 37019168 DOI: 10.1016/j.actbio.2023.03.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 03/24/2023] [Accepted: 03/29/2023] [Indexed: 04/07/2023]
Abstract
Fracture-related infection (FRI) is a devastating complication in orthopedic surgery. A recent study showed that FRI causes more severe infection and further delays healing in osteoporotic bone. Moreover, bacterial biofilm formed on implants cannot be eradicated by systemic antibiotics, warranting novel treatments. Here, we developed a DNase I and Vancomycin hydrogel delivery vehicle to eradicate Methicillin-resistant Staphylococcus aureus (MRSA) infection in vivo. Vancomycin was encapsulated in liposomes, and DNase I and Vancomycin/liposomal-Vancomycin was loaded on thermosensitive hydrogel. In vitro drug release test showed a burst release of DNase I (77.2%) within 72 hours and sustained release of Vancomycin (82.6%) up to day 14. The in vivo efficacy was evaluated in a clinically relevant ovariectomy (OVX) induced osteoporotic metaphyseal fracture model with MRSA infection, and a total of 120 Sprague Dawley rats were used. In the OVX with infection group, biofilm development caused a drastic inflammatory response, trabecular bone destruction, and non-union. In the DNase I and Vancomycin co-delivery hydrogel group (OVX-Inf-DVG), bacteria on bone and implant were eradicated. X-ray and micro-CT showed preservation of trabecular bone and bone union. HE staining showed the absence of inflammatory necrosis, and fracture healing was restored. The local elevation of TNF-α and IL-6 and increased number of osteoclasts were prevented in the OVX-Inf-DVG group. Our findings suggest that dual release of DNase I and Vancomycin initially followed by Vancomycin only later up to 14 days effectively eliminates MRSA infection, prevents biofilm development and provides a sterile environment to promote fracture healing in osteoporotic bone with FRI. STATEMENT OF SIGNIFICANCE: The biofilm formation on the implant is difficult to eradicate, causing recurrent infection and non-union in fracture-related infection (FRI). Here we developed a hydrogel therapy with high in vivo efficacy to eliminate MRSA biofilm infection in a clinically-relevant FRI model in osteoporotic bone. By loading DNase I and vancomycin/liposomal-vancomycin on thermosensitive poly-(DL-lactic acidco-glycolic acid) (PLGA)-polyethylene glycol (PEG)-PLGA hydrogel, a dual release of DNase I and Vancomycin was achieved whilst preserving enzyme activity. In this model, the progressive development of infection caused a drastic inflammatory response, osteoclastogenesis, trabecular bone destruction, and non-union of fracture. These pathological changes were successfully prevented by the dual delivery of DNase I and vancomycin. Our findings provide a promising strategy for FRI in osteoporotic bone.
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Affiliation(s)
- Jie Li
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | | | - Yik Lok Chung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Simon Kwoon Ho Chow
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Volker Alt
- Department of Trauma Surgery, University Hospital Regensburg, Germany
| | - Markus Rupp
- Department of Trauma Surgery, University Hospital Regensburg, Germany
| | | | - Chun Sing Chui
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Margaret Ip
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wing-Hoi Cheung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ronald Man Yeung Wong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.
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Expanding therapeutic strategies for intracellular bacterial infections through conjugates of apoptotic body-antimicrobial peptides. Drug Discov Today 2023; 28:103444. [PMID: 36400344 DOI: 10.1016/j.drudis.2022.103444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 11/03/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022]
Abstract
Macrophage intracellular infections are difficult to treat because conventional antibiotics tend to have poor penetration of mammalian cells. As a consequence, the immune response is affected and bacteria remain protected inside macrophages. The use of antimicrobial peptides (AMPs) is one of the alternatives developed as new treatments because of their broad spectrum of action. To improve drug delivery into the intracellular space, extracellular vesicles (EVs) have emerged as an innovative strategy for drug delivery. In particular, apoptotic bodies (ApoBDs) are EVs that exhibit attraction to macrophages, which makes them a promising means of improving AMP delivery to treat macrophage intracellular infections. Here, we review important aspects that should be taken into account when developing ApoBD-AMP conjugates.
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Abdelaziz MM, Hefnawy A, Anter A, Abdellatif MM, Khalil MA, Khalil IA. Inhalable vancomycin-loaded lactose microparticles for treatment of MRSA pneumonia. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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9
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Zhao L, Ckurshumova W, Fefer M, Liu J, Hoare T. Fabrication, Characterization and In Planta Uptake of Engineered Surfactant Nanovesicles for the Delivery of the Biostimulant Sodium Copper Chlorophyllin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15028-15037. [PMID: 36414271 DOI: 10.1021/acs.jafc.2c05279] [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: 06/16/2023]
Abstract
Effective delivery of agrochemicals requires control over bioactive release kinetics coupled with effective penetration of the bioactive into plants. Herein, we demonstrate the fabrication of hybrid nanovesicles based on sodium dodecylbenzenesulfonate (SDBS) and cetyltrimethylammonium bromide (CTAB) for enabling effective delivery of the biostimulant sodium copper chlorophyllin (Cu-chl) into plants. SDBS-CTAB nanovesicles exhibited a particle size of 107 nm with a well-defined spherical morphology, while modified formulations that included small fractions of the unsaturated dopant Span 80 yielded larger nanovesicles that were softer and more irregular in shape. All nanovesicles maintained high colloidal stability over >4 weeks and enabled sustained Cu-chl release, with the incorporation of Span 80 into the membranes enabling controllable acceleration of the release rate. Nanovesicle encapsulation improved the photostability of Cu-chl bioactive 3-4 × relative to that of free Cu-chl and enabled significant penetration of Cu-chl into the plant root without inducing any significant phytotoxicity.
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Affiliation(s)
- Lisha Zhao
- Department of Chemical Engineering, 1280 Main Street West, Hamilton, Ontario, CanadaL8S 4L7
| | - Wenzi Ckurshumova
- Suncor AgroScience, 2489 North Sheridan Way, Mississauga, Ontario, CanadaL5K 1A8
| | - Michael Fefer
- Suncor AgroScience, 2489 North Sheridan Way, Mississauga, Ontario, CanadaL5K 1A8
| | - Jun Liu
- Suncor AgroScience, 2489 North Sheridan Way, Mississauga, Ontario, CanadaL5K 1A8
| | - Todd Hoare
- Department of Chemical Engineering, 1280 Main Street West, Hamilton, Ontario, CanadaL8S 4L7
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Saddiqi ME, Kadir AA, Abdullah FFJ, Zakaria MZAB, Banke IS. Preparation, characterization and in vitro cytotoxicity evaluation of free and liposome-encapsulated tylosin. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yadav N, Kumar U, Chauhan VS. Conformationally restricted, dipeptide-based, self-assembled nanoparticles for efficient vancomycin delivery. Nanomedicine (Lond) 2022; 17:2023-2035. [PMID: 36645108 DOI: 10.2217/nnm-2022-0144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Aim: Emergence of vancomycin (Van) resistance, and usage of its higher dose and short half-life are posing a serious concern. Slow and sustained release of Van using a nanodelivery system may overcome these problems. Materials & methods: Arginine-α,β-dehydrophenylalanine (RΔF) was synthesized using solution-phase synthesis which self-assembled into nanospheres. Van was entrapped in the nanoparticles (NPs). In vitro and in vivo efficacy of Van-RΔF was determined using broth microdilution and the mouse thigh infection model, respectively. Results & conclusion: Van-RΔF NPs efficiently inhibited bacterial growth (Staphylococcus aureus), while Van alone showed limited growth inhibition in in vitro. Intravenous administration of Van-RΔF in mice with bacterial thigh infection showed enhanced efficacy (double) compared with Van alone, which indicates its high potential for further development.
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Affiliation(s)
- Nitin Yadav
- Molecular Medicine Group, International Centre for Genetic Engineering & Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
- Delhi Institute of Pharmaceutical Sciences & Research, Mehrauli-Badarpur Road, Sector-3, Pushpvihar, New Delhi, 110017, India
| | - Utkarsh Kumar
- Molecular Medicine Group, International Centre for Genetic Engineering & Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Virander Singh Chauhan
- Molecular Medicine Group, International Centre for Genetic Engineering & Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
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Papp N, Panicker J, Rubino J, Pais G, Czechowicz A, Prozialeck WC, Griffin B, Weissig V, Scheetz M, Joshi MD. In Vitro Nephrotoxicity and Permeation of Vancomycin Hydrochloride Loaded Liposomes. Pharmaceutics 2022; 14:pharmaceutics14061153. [PMID: 35745726 PMCID: PMC9230554 DOI: 10.3390/pharmaceutics14061153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 12/10/2022] Open
Abstract
Drugs can be toxic to the fetus depending on the amount that permeates across the maternal–fetal barrier. One way to limit the amount which penetrates this barrier is to increase the molecular size of the drug. In this study, we have achieved this by encapsulating our model antibiotic (vancomycin hydrochloride, a known nephrotoxic agent) in liposomes. PEGylated and non-PEGylated liposomes encapsulating vancomycin hydrochloride were prepared using two different methods: thin-film hydration followed by the freeze–thaw method and the reverse-phase evaporation method. These liposomes were characterized by their hydrodynamic size and zeta potential measurements, CryoTEM microscopy, loading and encapsulation efficiency studies, in vitro release measurements and in vitro cytotoxicity assays using NRK-52 E rat kidney cells. We also determined the in vitro permeability of these liposomes across the human placental cell and dog kidney cell barriers. Vancomycin hydrochloride-loaded PEGylated liposomes (VHCL-lipo) of a size less than 200 nm were prepared. The VHCL-lipo were found to have the faster release of vancomycin hydrochloride and resulted in greater viability of NRK-52E cells. In vitro, the VHCL-lipo permeated the human placental cell and dog kidney cell barriers to a lesser extent than the free vancomycin hydrochloride. The data suggest a reduction in nephrotoxicity and permeability of vancomycin hydrochloride after encapsulation in PEGylated liposomes.
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Affiliation(s)
- Nicole Papp
- Department of Pharmaceutical Sciences, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (N.P.); (J.P.); (J.R.)
| | - Jeffin Panicker
- Department of Pharmaceutical Sciences, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (N.P.); (J.P.); (J.R.)
| | - John Rubino
- Department of Pharmaceutical Sciences, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (N.P.); (J.P.); (J.R.)
| | - Gwendolyn Pais
- Department of Pharmacy Practice, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (G.P.); (B.G.); (M.S.)
| | - Alexander Czechowicz
- Department of Pharmaceutical Sciences, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA; (A.C.); (V.W.)
| | - Walter C. Prozialeck
- Department of Pharmacology, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA;
| | - Brooke Griffin
- Department of Pharmacy Practice, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (G.P.); (B.G.); (M.S.)
| | - Volkmar Weissig
- Department of Pharmaceutical Sciences, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA; (A.C.); (V.W.)
| | - Marc Scheetz
- Department of Pharmacy Practice, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (G.P.); (B.G.); (M.S.)
| | - Medha D. Joshi
- Department of Pharmaceutical Sciences, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (N.P.); (J.P.); (J.R.)
- Department of Pharmaceutical Sciences, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA; (A.C.); (V.W.)
- Correspondence: ; Tel.: +1-(623)572-3593; Fax: +1-(623)572-3565
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Abdelaziz MM, Hefnawy A, Anter A, Abdellatif MM, Khalil MAF, Khalil IA. Respirable spray dried vancomycin coated magnetic nanoparticles for localized lung delivery. Int J Pharm 2022; 611:121318. [PMID: 34838622 DOI: 10.1016/j.ijpharm.2021.121318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 01/28/2023]
Abstract
Bacterial pneumonia is a common pulmonary infection responsible for premature death. Biomaterials based-carriers loaded with antibiotics enhance drug potency through localizing the therapy, minimizing the associated adverse effects, and improving patient compliance. Herein, this study reports the preparation of an inhalable dry powder formulation composed of a nano-in-microparticles. Vancomycin was adsorbed on the core of magnetic nanoparticles followed by spray drying into lactose/dextran to optimize the aerodynamic performance and allow the local delivery of the drug into the bacterial pneumonia infection site. Lactose and Dextran are polysaccharides commonly used for pulmonary delivery due to their optimum aerodynamic performance and biocompatibility. The preparation of the nano-in-micro particles with optimum properties was confirmed using FTIR, TEM, SEM, Laser-diffraction, ICP-AES and TGA. The TEM micrographs confirmed the formation of spherical magnetic nanoparticles with a diameter 14.7 ± 5.9 nm and a coating thickness 3 - 16 nm, while laser diffraction showed that outer microparticles exhibited a mean diameter < 5 µm. The formulations demonstrated a promising activity against S. aureus and MRSA and better biocompatibility using MTT assay. In vivo safety and pharmacokinetic studies confirmed the localization of VAN in lung tissue and minimized adverse effects compared to free VAN. Therefore, the developed nano-in-microparticles confers a good potential for eradication of lung infections.
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Affiliation(s)
| | - Amr Hefnawy
- Smyth Lab, College of Pharmacy, University of Texas at Austin, TX 78712, USA
| | - Asem Anter
- Microbiology Unit, Drug Factory, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6th of October, Giza 12566, Egypt
| | - Menna M Abdellatif
- Department of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
| | - Mahmoud A F Khalil
- Department of Microbiology and Immunology, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt
| | - Islam A Khalil
- Department of Pharmaceutics, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6th of October, Giza 12582, Egypt.
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15
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Rani NNIM, Chen XY, Al-Zubaidi ZM, Azhari H, Khaitir TMN, Ng PY, Buang F, Tan GC, Wong YP, Said MM, Butt AM, Hamid AA, Amin MCIM. Surface-engineered liposomes for dual-drug delivery targeting strategy against Methicillin-resistant Staphylococcus aureus (MRSA). Asian J Pharm Sci 2021; 17:102-119. [PMID: 35261647 PMCID: PMC8888183 DOI: 10.1016/j.ajps.2021.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/26/2021] [Accepted: 11/26/2021] [Indexed: 11/30/2022] Open
Abstract
This study focused on the encapsulation of vancomycin (VAN) into liposomes coated with a red blood cell membrane with a targeting ligand, daptomycin–polyethylene glycol–1,2-distearoyl-sn-glycero-3-phosphoethanolamine, formed by conjugation of DAPT and N-hydroxysuccinimidyl-polyethylene glycol-1,2-distearoyl-sn-glycero-3-phosphoethanolamine. This formulation is capable of providing controlled and targeted drug delivery to the bacterial cytoplasm. We performed MALDI-TOF, NMR and FTIR analyses to confirm the conjugation of the targeting ligand via the formation of amide bonds. Approximately 45% of VAN could be loaded into the aqueous cores, whereas 90% DAPT was detected using UV–vis spectrophotometry. In comparison to free drugs, the formulations controlled the release of drugs for > 72 h. Additionally, as demonstrated using CLSM and flow cytometry, the resulting formulation was capable of evading detection by macrophage cells. In comparison to free drugs, red blood cell membrane–DAPT–VAN liposomes, DAPT liposomes, and VAN liposomes reduced the MIC and significantly increased bacterial permeability, resulting in > 80% bacterial death within 4 h. Cytotoxicity tests were performed in vitro and in vivo on mammalian cells, in addition to hemolytic activity tests in human erythrocytes, wherein drugs loaded into the liposomes and RBCDVL exhibited low toxicity. Thus, the findings of this study provide insight about a dual antibiotic targeting strategy that utilizes liposomes and red blood cell membranes to deliver targeted drugs against MRSA.
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Affiliation(s)
- Nur Najihah Izzati Mat Rani
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
- Faculty of Pharmacy and Health Sciences, University Kuala Lumpur Royal College of Medicine Perak No.3, Perak 30450, Malaysia
| | - Xiang Yi Chen
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Zahraa M. Al-Zubaidi
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Hanisah Azhari
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Tzar Mohd Nizam Khaitir
- Department of Medical Microbiology & Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Pei Yuen Ng
- Drug and Herbal Research Center, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Fhataheya Buang
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
- Reading School of Pharmacy, University of Reading, Reading RG66AD, United Kingdom
| | - Geok Chin Tan
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Yin Ping Wong
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Mazlina Mohd Said
- Drug and Herbal Research Center, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Adeel Masood Butt
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | | | - Mohd Cairul Iqbal Mohd Amin
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
- Corresponding author.
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Abstract
The kidneys are vital organs performing several essential functions. Their primary function is the filtration of blood and the removal of metabolic waste products as well as fluid homeostasis. Renal filtration is the main pathway for drug removal, highlighting the importance of this organ to the growing field of nanomedicine. The kidneys (i) have a key role in the transport and clearance of nanoparticles (NPs), (ii) are exposed to potential NPs’ toxicity, and (iii) are the targets of diseases that nanomedicine can study, detect, and treat. In this review, we aim to summarize the latest research on kidney-nanoparticle interaction. We first give a brief overview of the kidney’s anatomy and renal filtration, describe how nanoparticle characteristics influence their renal clearance, and the approaches taken to image and treat the kidney, including drug delivery and tissue engineering. Finally, we discuss the future and some of the challenges faced by nanomedicine.
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17
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Development of Vancomycin Delivery Systems Based on Autologous 3D Platelet-Rich Fibrin Matrices for Bone Tissue Engineering. Biomedicines 2021; 9:biomedicines9070814. [PMID: 34356878 PMCID: PMC8301455 DOI: 10.3390/biomedicines9070814] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/29/2021] [Accepted: 07/05/2021] [Indexed: 01/05/2023] Open
Abstract
Autologous platelet-rich fibrin (PRF) is derived from the blood and its use in the bone tissue engineering has emerged as an effective strategy for novel drug and growth factor delivery systems. Studies have approved that combined therapy with PRF ensures higher biological outcomes, but patients still undergo additional treatment with antibiotic drugs before, during, and even after the implantation of biomaterials with PRF. These systematically used drugs spread throughout the blood and lead not only to positive effects but may also induce adverse side effects on healthy tissues. Vancomycin hydrochloride (VANKA) is used to treat severe Staphylococcal infections but its absorption in the target tissue after oral administration is low; therefore, in this study, we have developed and analyzed two kinds of VANKA carriers—liposomes and microparticles in 3D PRF matrices. The adjustment, characterization, and analysis of VANKA carriers in 3D PRF scaffolds is carried out in terms of encapsulation efficiency, drug release kinetics and antibacterial activity; furthermore, we have studied the micro- and macrostructure of the scaffolds with microtomography.
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Ziesmer J, Tajpara P, Hempel N, Ehrström M, Melican K, Eidsmo L, Sotiriou GA. Vancomycin-Loaded Microneedle Arrays against Methicillin-Resistant Staphylococcus Aureus Skin Infections. ADVANCED MATERIALS TECHNOLOGIES 2021; 6:2001307. [PMID: 34307835 PMCID: PMC8281827 DOI: 10.1002/admt.202001307] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/12/2021] [Indexed: 05/24/2023]
Abstract
Skin and soft tissue infections (SSTIs) caused by methicillin-resistant Staphylococcus aureus (MRSA) are a major healthcare burden, often treated with intravenous injection of the glycopeptide antibiotic vancomycin (VAN). However, low local drug concentration in the skin limits its treatment efficiency, while systemic exposure promotes the development of resistant bacterial strains. Topical administration of VAN on skin is ineffective as its high molecular weight prohibits transdermal penetration. In order to implement a local VAN delivery, microneedle (MN) arrays with a water-insoluble support layer for the controlled administration of VAN into the skin are developed. The utilization of such a support layer results in water-insoluble needle shafts surrounded by drug-loaded water-soluble tips with high drug encapsulation. The developed MN arrays can penetrate the dermal barriers of both porcine and fresh human skin. Permeation studies on porcine skin reveal that the majority of the delivered VAN is retained within the skin. It is shown that the VAN-MN array reduces MRSA growth both in vitro and ex vivo on skin. The developed VAN-MN arrays may be extended to several drugs and may facilitate localized treatment of MRSA-caused skin infections while minimizing adverse systemic effects.
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Affiliation(s)
- Jill Ziesmer
- Department of MicrobiologyTumour and Cell BiologyKarolinska InstitutetStockholmSE‐17177Sweden
| | - Poojabahen Tajpara
- Department of Medicine SolnaUnit of RheumatologyKarolinska InstitutetStockholmSE‐17177Sweden
| | | | - Marcus Ehrström
- Department of Reconstructive Plastic SurgeryKarolinska University Hospital SolnaStockholmSE‐17176Sweden
| | - Keira Melican
- Center for the Advancement of Integrated Medical and Engineering Sciences (AIMES)Karolinska Institutet and KTH Royal Institute of TechnologyStockholmSE‐171 77Sweden
- Department of NeuroscienceKarolinska InstitutetStockholmSE‐171 77Sweden
| | - Liv Eidsmo
- Department of Medicine SolnaUnit of RheumatologyKarolinska InstitutetStockholmSE‐17177Sweden
- Diagnostiskt Centrum HudStockholmSE‐11137Sweden
- Leo Foundation Skin Immunology CenterUniversity of CopenhagenCopenhagenDK‐2100Denmark
| | - Georgios A. Sotiriou
- Department of MicrobiologyTumour and Cell BiologyKarolinska InstitutetStockholmSE‐17177Sweden
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19
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Citeroni MR, Mauro A, Ciardulli MC, Di Mattia M, El Khatib M, Russo V, Turriani M, Santer M, Della Porta G, Maffulli N, Forsyth NR, Barboni B. Amnion-Derived Teno-Inductive Secretomes: A Novel Approach to Foster Tendon Differentiation and Regeneration in an Ovine Model. Front Bioeng Biotechnol 2021; 9:649288. [PMID: 33777919 PMCID: PMC7991318 DOI: 10.3389/fbioe.2021.649288] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/16/2021] [Indexed: 12/12/2022] Open
Abstract
Regenerative medicine has greatly progressed, but tendon regeneration mechanisms and robust in vitro tendon differentiation protocols remain to be elucidated. Recently, tendon explant co-culture (CO) has been proposed as an in vitro model to recapitulate the microenvironment driving tendon development and regeneration. Here, we explored standardized protocols for production and storage of bioactive tendon-derived secretomes with an evaluation of their teno-inductive effects on ovine amniotic epithelial cells (AECs). Teno-inductive soluble factors were released in culture-conditioned media (CM) only in response to active communication between tendon explants and stem cells (CMCO). Unsuccessful tenogenic differentiation in AECs was noted when exposed to CM collected from tendon explants (CMFT) only, whereas CMCO upregulated SCXB, COL I and TNMD transcripts, in AECs, alongside stimulation of the development of mature 3D tendon-like structures enriched in TNMD and COL I extracellular matrix proteins. Furthermore, although the tenogenic effect on AECs was partially inhibited by freezing CMCO, this effect could be recovered by application of an in vivo-like physiological oxygen (2% O2) environment during AECs tenogenesis. Therefore, CMCO can be considered as a waste tissue product with the potential to be used for the development of regenerative bio-inspired devices to innovate tissue engineering application to tendon differentiation and healing.
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Affiliation(s)
- Maria Rita Citeroni
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Annunziata Mauro
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | | | - Miriam Di Mattia
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Mohammad El Khatib
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Valentina Russo
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Maura Turriani
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Michael Santer
- School of Pharmacy and Bioengineering, Keele University School of Medicine, Stoke-on-Trent, United Kingdom
| | - Giovanna Della Porta
- Department of Medicine, Surgery and Dentistry, University of Salerno, Salerno, Italy
- Research Centre for Biomaterials BIONAM, University of Salerno, Fisciano, Italy
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Salerno, Italy
- School of Pharmacy and Bioengineering, Keele University School of Medicine, Stoke-on-Trent, United Kingdom
- Research Centre for Biomaterials BIONAM, University of Salerno, Fisciano, Italy
- Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Nicholas R. Forsyth
- School of Pharmacy and Bioengineering, Keele University School of Medicine, Stoke-on-Trent, United Kingdom
| | - Barbara Barboni
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
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20
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Jagwani S, Jalalpure S, Dhamecha D, Jadhav K, Bohara R. Pharmacokinetic and Pharmacodynamic Evaluation of Resveratrol Loaded Cationic Liposomes for Targeting Hepatocellular Carcinoma. ACS Biomater Sci Eng 2020; 6:4969-4984. [PMID: 33455290 DOI: 10.1021/acsbiomaterials.0c00429] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death worldwide. The destructive nature of the disease makes it difficult for clinicians to manage the condition. Hence, there is an urgent need to find new alternatives for HCC, as the role of conventional cytotoxic drugs has reached a plateau to control HCC associated mortality. Antioxidant compounds of plant origin with potential anti-tumor effect have been recognized as alternate modes in cancer treatment and chemoprevention. Resveratrol (RS) is a model natural nonflavonoid drug known for its anti-cancer activity. However, its clinical application is limited due to its poor bioavailability. The current research work aims to formulate, optimize, and characterize RS loaded cationic liposomes (RLs) for specific delivery in HCC. The optimized liposomes formulation (RL5) was spherical with a vesicle size (VS) of 145.78 ± 9.9 nm, ζ potential (ZP) of 38.03 ± 9.12 mV, and encapsulation efficiency (EE) of 78.14 ± 8.04%. In vitro cytotoxicity studies in HepG2 cells demonstrated an improved anti-cancer activity of RL5 in comparison with free RS. These outcomes were supported by a cell uptake study in HepG2 cells, in which RL5 exhibited a higher uptake than free RS. Furthermore, confocal images of HepG2 cells after 3 and 5 h of incubation showed higher internalization of coumarin 6 (C6) loaded liposomes (CL) as compared to those of the free C6. Pharmacokinetic and pharmacodynamic (prophylactic and therapeutic treatment modalities) studies were performed in N-nitrosodiethylamine (NDEA-carcinogen) induced HCC in rats. Pharmacokinetic evaluation of RL5 demonstrated increased localization of RS in cancerous liver tissues by 3.2- and 2.2-fold increase in AUC and Cmax, respectively, when compared to those of the free RS group. A pharmacodynamic investigation revealed a significant reduction in hepatocyte nodules in RL5 treated animals when compared to those of free RS. Further, on treatment with RL5, HCC-bearing rats showed a significant decrease in the liver marker enzymes (alanine transaminase, alkaline phosphatase, aspartate transaminase, total bilirubin levels, γ-glutamyl transpeptidase, and α-fetoprotein), in comparison with that of the disease control group. Our findings were supported by histopathological analysis, and we were first to demonstrate that NDEA induced detrimental effect on rat livers was successfully reversed with the treatment of RL5 formulation. These results implied that delivery of RS loaded cationic liposomes substantially controlled the severity of HCC and that they can be considered as a promising nanocarrier in the management of HCC.
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Affiliation(s)
- Satveer Jagwani
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India.,Dr. Prabhakar Kore Basic Science Research Center, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India
| | - Sunil Jalalpure
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India.,Dr. Prabhakar Kore Basic Science Research Center, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India
| | - Dinesh Dhamecha
- Dr. Prabhakar Kore Basic Science Research Center, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India
| | - Kiran Jadhav
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India
| | - Raghvendra Bohara
- Centre for Interdisciplinary Research, D. Y. Patil Education Society (Institution Deemed to be University), Line Bazar, Kasaba Bawada, Kolhapur, 416006, Maharashtra, India.,CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland, Upper New Castle, Galway, H91 W2TY, Ireland
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21
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Sarangi NK, Stalcup A, Keyes TE. The Impact of Membrane Composition and Co‐Drug Synergistic Effects on Vancomycin Association with Model Membranes from Electrochemical Impedance Spectroscopy. ChemElectroChem 2020. [DOI: 10.1002/celc.202000818] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nirod Kumar Sarangi
- School of Chemical Sciences and National Centre for Sensor Research Dublin City University DCU Glasnevin Campus D09 W6Y4 Dublin 9 Ireland
| | - Apryll Stalcup
- School of Chemical Sciences and National Centre for Sensor Research Dublin City University DCU Glasnevin Campus D09 W6Y4 Dublin 9 Ireland
| | - Tia E. Keyes
- School of Chemical Sciences and National Centre for Sensor Research Dublin City University DCU Glasnevin Campus D09 W6Y4 Dublin 9 Ireland
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22
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Rahnfeld L, Luciani P. Injectable Lipid-Based Depot Formulations: Where Do We Stand? Pharmaceutics 2020; 12:E567. [PMID: 32575406 PMCID: PMC7356974 DOI: 10.3390/pharmaceutics12060567] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/13/2020] [Accepted: 06/15/2020] [Indexed: 01/18/2023] Open
Abstract
The remarkable number of new molecular entities approved per year as parenteral drugs, such as biologics and complex active pharmaceutical ingredients, calls for innovative and tunable drug delivery systems. Besides making these classes of drugs available in the body, injectable depot formulations offer the unique advantage in the parenteral world of reducing the number of required injections, thus increasing effectiveness as well as patient compliance. To date, a plethora of excipients has been proposed to formulate depot systems, and among those, lipids stand out due to their unique biocompatibility properties and safety profile. Looking at the several long-acting drug delivery systems based on lipids designed so far, a legitimate question may arise: How far away are we from an ideal depot formulation? Here, we review sustained release lipid-based platforms developed in the last 5 years, namely oil-based solutions, liposomal systems, in situ forming systems, solid particles, and implants, and we critically discuss the requirements for an ideal depot formulation with respect to the used excipients, biocompatibility, and the challenges presented by the manufacturing process. Finally, we delve into lights and shadows originating from the current setups of in vitro release assays developed with the aim of assessing the translational potential of depot injectables.
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Affiliation(s)
| | - Paola Luciani
- Pharmaceutical Technology Research Group, Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland;
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23
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Ferreira M, Aguiar S, Bettencourt A, Gaspar MM. Lipid-based nanosystems for targeting bone implant-associated infections: current approaches and future endeavors. Drug Deliv Transl Res 2020; 11:72-85. [PMID: 32514703 DOI: 10.1007/s13346-020-00791-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Bone infections caused by Staphylococcus aureus are a major concern in medical care, particularly when associated with orthopedic-implant devices. The ability of the bacteria to form biofilms and their capacity to invade and persist within osteoblasts turn the infection eradication into a huge challenge. The reduction of antibiotic penetration through bacterial biofilms associated with the presence of persistent cells, ability to survive in the host, and high tolerance to antibiotics are some of the reasons for the difficult treatment of these infections. Effective therapeutic approaches are urgently needed. In this sense, lipid-based nanosystems, such as liposomes, have been investigated as an innovative and alternative strategy for the treatment of implant-associated S. aureus infections, due to their preferential accumulation at infected sites and interaction with S. aureus. This review highlights the recent advances on antibiotic-loaded liposome formulations both in vitro and in vivo and how the interaction with S. aureus biofilms may be improved by modulating the liposomal external surface. Graphical Abstract.
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Affiliation(s)
- Magda Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, Universidade de Lisboa, Av. Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Sandra Aguiar
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, Universidade de Lisboa, Av. Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Ana Bettencourt
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
| | - Maria Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
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24
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Pais GM, Liu J, Zepcan S, Avedissian SN, Rhodes NJ, Downes KJ, Moorthy GS, Scheetz MH. Vancomycin-Induced Kidney Injury: Animal Models of Toxicodynamics, Mechanisms of Injury, Human Translation, and Potential Strategies for Prevention. Pharmacotherapy 2020; 40:438-454. [PMID: 32239518 PMCID: PMC7331087 DOI: 10.1002/phar.2388] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 02/21/2020] [Accepted: 03/02/2020] [Indexed: 12/13/2022]
Abstract
Vancomycin is a recommended therapy in multiple national guidelines. Despite the common use, there is a poor understanding of the mechanistic drivers and potential modifiers of vancomycin-mediated kidney injury. In this review, historic and contemporary rates of vancomycin-induced kidney injury (VIKI) are described, and toxicodynamic models and mechanisms of toxicity from preclinical studies are reviewed. Aside from known clinical covariates that worsen VIKI, preclinical models have demonstrated that various factors impact VIKI, including dose, route of administration, and thresholds for pharmacokinetic parameters. The degree of acute kidney injury (AKI) is greatest with the intravenous route and higher doses that produce larger maximal concentrations and areas under the concentration curve. Troughs (i.e., minimum concentrations) have less of an impact. Mechanistically, preclinical studies have identified that VIKI is a result of drug accumulation in proximal tubule cells, which triggers cellular oxidative stress and apoptosis. Yet, there are several gaps in the knowledge that may represent viable targets to make vancomycin therapy less toxic. Potential strategies include prolonging infusions and lowering maximal concentrations, administration of antioxidants, administering agents that decrease cellular accumulation, and reformulating vancomycin to alter the renal clearance mechanism. Based on preclinical models and mechanisms of toxicity, we propose potential strategies to lessen VIKI.
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Affiliation(s)
- Gwendolyn M. Pais
- Department of Pharmacy Practice, Chicago College of Pharmacy, Midwestern University, Downers Grove, Illinois
- Pharmacometrics Center of Excellence, Midwestern University Chicago College of Pharmacy, Downers Grove, Illinois
| | - Jiajun Liu
- Department of Pharmacy Practice, Chicago College of Pharmacy, Midwestern University, Downers Grove, Illinois
- Pharmacometrics Center of Excellence, Midwestern University Chicago College of Pharmacy, Downers Grove, Illinois
| | - Sanja Zepcan
- Chicago College of Pharmacy, Midwestern University, Downers Grove, Illinois
| | - Sean N. Avedissian
- Antiviral Pharmacology Laboratory, University of Nebraska Medical Center (UNMC) Center for Drug Discovery, UNMC, Omaha, Nebraska
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska
| | - Nathaniel J. Rhodes
- Department of Pharmacy Practice, Chicago College of Pharmacy, Midwestern University, Downers Grove, Illinois
- Pharmacometrics Center of Excellence, Midwestern University Chicago College of Pharmacy, Downers Grove, Illinois
| | - Kevin J. Downes
- Division of Infectious Diseases, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Ganesh S. Moorthy
- Division of Critical Care, Department of Anesthesiology and Critical Care, The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Marc H. Scheetz
- Department of Pharmacy Practice, Chicago College of Pharmacy, Midwestern University, Downers Grove, Illinois
- Pharmacometrics Center of Excellence, Midwestern University Chicago College of Pharmacy, Downers Grove, Illinois
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25
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Scriboni AB, Couto VM, Ribeiro LNDM, Freires IA, Groppo FC, de Paula E, Franz-Montan M, Cogo-Müller K. Fusogenic Liposomes Increase the Antimicrobial Activity of Vancomycin Against Staphylococcus aureus Biofilm. Front Pharmacol 2019; 10:1401. [PMID: 31849660 PMCID: PMC6895244 DOI: 10.3389/fphar.2019.01401] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 11/01/2019] [Indexed: 11/23/2022] Open
Abstract
Objective: The aim of the present study was to encapsulate vancomycin in different liposomal formulations and compare the in vitro antimicrobial activity against Staphylococcus aureus biofilms. Methods: Large unilamellar vesicles of conventional (LUV VAN), fusogenic (LUVfuso VAN), and cationic (LUVcat VAN) liposomes encapsulating VAN were characterized in terms of size, polydispersity index, zeta potential, morphology, encapsulation efficiency (%EE) and in vitro release kinetics. The formulations were tested for their Minimum Inhibitory Concentration (MIC) and inhibitory activity on biofilm formation and viability, using methicillin-susceptible S. aureus ATCC 29213 and methicillin-resistant S. aureus ATCC 43300 strains. Key Findings: LUV VAN showed better %EE (32.5%) and sustained release than LUVfuso VAN, LUVcat VAN, and free VAN. The formulations were stable over 180 days at 4°C, except for LUV VAN, which was stable up to 120 days. The MIC values for liposomal formulations and free VAN ranged from 0.78 to 1.56 µg/ml against both tested strains, with no difference in the inhibition of biofilm formation as compared to free VAN. However, when treating mature biofilm, encapsulated LUVfuso VAN increased the antimicrobial efficacy as compared to the other liposomal formulations and to free VAN, demonstrating a better ability to penetrate the biofilm. Conclusion: Vancomycin encapsulated in fusogenic liposomes demonstrated enhanced antimicrobial activity against mature S. aureus biofilms.
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Affiliation(s)
- Andreia Borges Scriboni
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Verônica Muniz Couto
- Department of Biochemistry and Tissue Biology, Biology Institute, University of Campinas, Campinas, Brazil
| | | | - Irlan Almeida Freires
- Department of Oral Biology, University of Florida College of Dentistry, Gainesville, FL, United States
| | - Francisco Carlos Groppo
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Eneida de Paula
- Department of Biochemistry and Tissue Biology, Biology Institute, University of Campinas, Campinas, Brazil
| | - Michelle Franz-Montan
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Karina Cogo-Müller
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.,Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil
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Omolo CA, Megrab NA, Kalhapure RS, Agrawal N, Jadhav M, Mocktar C, Rambharose S, Maduray K, Nkambule B, Govender T. Liposomes with pH responsive 'on and off' switches for targeted and intracellular delivery of antibiotics. J Liposome Res 2019; 31:45-63. [PMID: 31663407 DOI: 10.1080/08982104.2019.1686517] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
pH responsive drug delivery systems are one of the new strategies to address the spread of bacterial resistance to currently used antibiotics. The aim of this study was to formulate liposomes with 'On' and 'Off'' pH responsive switches for infection site targeting. The vancomycin (VCM) loaded liposomes had sizes below 100 nm, at pH 7.4. The QL-liposomes had a negative zeta potential at pH 7.4 that switched to a positive charge at acidic pH. VCM release from the liposome was quicker at pH 6 than pH 7.4. The OA-QL-liposome showed 4-fold lower MIC at pH 7.4 and 8- and 16-fold lower at pH 6.0 against both MSSA and MRSA compared to the bare drug. OA-QL liposome had a 1266.67- and 704.33-fold reduction in the intracellular infection for TPH-1 macrophage and HEK293 cells respectively. In vivo studies showed that the amount of MRSA recovered from mice treated with formulations was 189.67 and 6.33-fold lower than the untreated and bare VCM treated mice respectively. MD simulation of the QL lipid with the phosphatidylcholine membrane (POPC) showed spontaneous binding of the lipid to the bilayer membrane both electrostatic and Van der Waals interactions contributed to the binding. These studies demonstrated that the 'On' and 'Off' pH responsive liposomes enhanced the activity targeted and intracellular delivery VCM.
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Affiliation(s)
- Calvin A Omolo
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.,School of Pharmacy and Health Sciences, United States International University of Africa, Nairobi, Kenya
| | - Nagia A Megrab
- Department of Pharmaceutics and Industrial Pharmacy, Zagazig University, Zagazig, Egypt
| | - Rahul S Kalhapure
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Nikhil Agrawal
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Mahantesh Jadhav
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Sanjeev Rambharose
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.,Division of Emergency Medicine, Department of Surgery, University of Cape Town, Cape Town, South Africa
| | - Kaminee Maduray
- Department of Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Bongani Nkambule
- Department of Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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27
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Pawar V, Bulbake U, Khan W, Srivastava R. Chitosan sponges as a sustained release carrier system for the prophylaxis of orthopedic implant-associated infections. Int J Biol Macromol 2019; 134:100-112. [DOI: 10.1016/j.ijbiomac.2019.04.190] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/13/2019] [Accepted: 04/29/2019] [Indexed: 12/31/2022]
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28
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Cockle Shell-Derived Calcium Carbonate (Aragonite) Nanoparticles: A Dynamite to Nanomedicine. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9142897] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cockle shell is an external covering of small, salt water edible clams (Anadara granosa) that dwells in coastal area. This abundant biomaterial is hard, cheap and readily available with high content of calcium carbonate in aragonite polymorphic form. At present, cockle shell-derived calcium carbonate nanoparticles (CSCaCO3NPs) with dual applications has remarkably drawn significant attention of researchers in nanotechnology as a nanocarrier for delivery of different categories of drugs and as bone scaffold due to its beneficial potentials such as biocompatibility, osteoconductivity, pH sensitivity, slow biodegradation, hydrophilic nature and a wide safety margin. In addition, CSCaCO3NP possesses structural porosity, a large surface area and functional group endings for electrostatic ion bonds with high loading capacity. Thus, it maintains great potential in the drug delivery system and a large number of biomedical utilisations. The pioneering researchers adopted a non-hazardous top-down method for the synthesis of CSCaCO3NP with subsequent improvements that led to the better spherical diameter size obtained recently which is suitable for drug delivery. The method is therefore a simple, low cost and environmentally friendly, which involves little procedural steps without stringent temperature management and expensive hazardous chemicals or any carbonation methods. This paper presents a review on a few different types of nanoparticles with emphasis on the versatile most recent advancements and achievements on the synthesis and developments of CSCaCO3NP aragonite with its applications as a nanocarrier for drug delivery in nanomedicine.
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Hassan D, Omolo CA, Gannimani R, Waddad AY, Mocktar C, Rambharose S, Agrawal N, Govender T. Delivery of novel vancomycin nanoplexes for combating methicillin resistant Staphylococcus aureus (MRSA) infections. Int J Pharm 2019; 558:143-156. [PMID: 30641177 DOI: 10.1016/j.ijpharm.2019.01.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/31/2018] [Accepted: 01/03/2019] [Indexed: 01/01/2023]
Abstract
The development of novel antibiotic systems is needed to address the methicillin-resistant Staphylococcus aureus (MRSA) infections. The aim of the study was to explore the novel nanoplex delivery method for vancomycin (VCM) against MRSA using dextran sulfate sodium salt (DXT) as a polyelectrolyte complexing agent. Nanoplexes were formulated by the self-assembling amphiphile polyelectrolyte complexation method and characterized. The size, polydispersity index (PDI), and zeta potential (ZP) of the optimized VCM nanoplexes were 84.6 ± 4.248 nm, 0.449 ± 0.024 and -33.0 ± 4.87 mV respectively, with 90.4 ± 0.77% complexation efficiency (CE %) and 62.3 ± 0.23% drug loading. The in vitro (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide)tetrazolium (MTT) studies of the nanoplexes were found to be non-toxic against different mammalian cell lines tested and may confirm its biosafety. While the in vitro drug release studies demonstrated sustained slower release. The in silico study confirmed the spontaneous interaction of VCM with DXT in the presence of sodium chloride. A 6.24-fold enhancement was observed for VCM nanoplexes via in vitro antibacterial studies. Flow-cytometric analysis showed effective cell killing of 67% from VCM nanoplexes compared to 32.98% from the bare vancomycin at the minimum inhibitory concentration (MIC) of 1.25 μg/mL. The in vivo studies using BALB/c mouse skin infection model revealed that nanoplexes reduced MRSA burden by 2.3-folds compared to bare VCM. The novel nanoplexes have potential to be a promising delivery system to combat MRSA infections for improved treatment of bacterial infections.
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Affiliation(s)
- Daniel Hassan
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Calvin A Omolo
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Ramesh Gannimani
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Ayman Y Waddad
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Sanjeev Rambharose
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa; Division of Emergency Medicine, Department of Surgery, University of Cape Town, Cape Town, South Africa
| | - Nikhil Agrawal
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa.
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30
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Exploring anti-MRSA activity of chitosan-coated liposomal dicloxacillin. J Microbiol Methods 2019; 156:23-28. [DOI: 10.1016/j.mimet.2018.11.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 11/15/2018] [Accepted: 11/17/2018] [Indexed: 01/09/2023]
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31
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Charoenviriyakul C, Takahashi Y, Nishikawa M, Takakura Y. Preservation of exosomes at room temperature using lyophilization. Int J Pharm 2018; 553:1-7. [PMID: 30316791 DOI: 10.1016/j.ijpharm.2018.10.032] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 10/09/2018] [Accepted: 10/10/2018] [Indexed: 01/08/2023]
Abstract
The application of exosomes as a therapeutic reagent or drug delivery vehicle can be expanded by developing a method to preserve exosomes. Although exosomes are generally stored at -80 °C, this temperature is not suitable for their handling or transportation and, therefore, other storage methods are desirable. Lyophilization is a promising storage method that can be used to preserve various substances at room temperature. In this study, we sought to develop a room temperature preservation method for exosomes using lyophilization and compared the properties of the lyophilized exosomes with ones stored at -80 °C. Lyophilization without cryoprotectant resulted in the aggregation of B16BL6 melanoma-derived exosomes, while the addition of trehalose, a cryoprotectant, prevented aggregation during lyophilization. PAGE analysis revealed that the proteins and RNA of exosomes were protected following lyophilization in the presence of trehalose. Lyophilization had little effect on the pharmacokinetics of Gaussia luciferase (gLuc)-labeled exosomes after an intravenous injection into mice. Moreover, it was found that lyophilized exosomes retained the activity of loaded gLuc and immunostimulatory CpG DNA for approximately 4 weeks even when stored at 25 °C. In conclusion, lyophilization with trehalose is an effective method for the storage of exosomes for various applications.
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Affiliation(s)
- Chonlada Charoenviriyakul
- Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yuki Takahashi
- Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Makiya Nishikawa
- Laboratory of Biopharmaceutics, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yoshinobu Takakura
- Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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32
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Synthesis of an oleic acid based pH-responsive lipid and its application in nanodelivery of vancomycin. Int J Pharm 2018; 550:149-159. [DOI: 10.1016/j.ijpharm.2018.08.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 08/06/2018] [Accepted: 08/16/2018] [Indexed: 12/20/2022]
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33
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TÜRKAN F, ATALAR MN. Glutatyon S-Transferaz Enzim Aktivitesi Üzerine Amoksilin ve Vankomisin Hidroklorid Hidratın Etkisi: Bir in vitro çalışma. ACTA ACUST UNITED AC 2018. [DOI: 10.21597/jist.428354] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Novel lipids with three C18-fatty acid chains and an amino acid head group for pH-responsive and sustained antibiotic delivery. Chem Phys Lipids 2018; 212:12-25. [DOI: 10.1016/j.chemphyslip.2017.12.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 12/12/2017] [Accepted: 12/31/2017] [Indexed: 12/13/2022]
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35
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Hibbitts A, O'Leary C. Emerging Nanomedicine Therapies to Counter the Rise of Methicillin-Resistant Staphylococcus aureus. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E321. [PMID: 29473883 PMCID: PMC5849018 DOI: 10.3390/ma11020321] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 02/14/2018] [Accepted: 02/19/2018] [Indexed: 12/25/2022]
Abstract
In a recent report, the World Health Organisation (WHO) classified antibiotic resistance as one of the greatest threats to global health, food security, and development. Methicillin-resistant Staphylococcus aureus (MRSA) remains at the core of this threat, with persistent and resilient strains detectable in up to 90% of S. aureus infections. Unfortunately, there is a lack of novel antibiotics reaching the clinic to address the significant morbidity and mortality that MRSA is responsible for. Recently, nanomedicine strategies have emerged as a promising therapy to combat the rise of MRSA. However, these approaches have been wide-ranging in design, with few attempts to compare studies across scientific and clinical disciplines. This review seeks to reconcile this discrepancy in the literature, with specific focus on the mechanisms of MRSA infection and how they can be exploited by bioactive molecules that are delivered by nanomedicines, in addition to utilisation of the nanomaterials themselves as antibacterial agents. Finally, we discuss targeting MRSA biofilms using nano-patterning technologies and comment on future opportunities and challenges for MRSA treatment using nanomedicine.
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Affiliation(s)
- Alan Hibbitts
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.
- Trinity Centre of Bioengineering, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
- Advanced Materials and Bioengineering Research (AMBER) Centre, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland.
| | - Cian O'Leary
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.
- Trinity Centre of Bioengineering, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
- Advanced Materials and Bioengineering Research (AMBER) Centre, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland.
- School of Pharmacy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.
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Wang Y, Zhao Y, Cui Y, Zhao Q, Zhang Q, Musetti S, Kinghorn KA, Wang S. Overcoming multiple gastrointestinal barriers by bilayer modified hollow mesoporous silica nanocarriers. Acta Biomater 2018; 65:405-416. [PMID: 29037897 DOI: 10.1016/j.actbio.2017.10.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/10/2017] [Accepted: 10/13/2017] [Indexed: 11/24/2022]
Abstract
Oral administration of nanocarriers remains a significant challenge in the pharmaceutical sciences. The nanocarriers must efficiently overcome multiple gastrointestinal barriers including the harsh gastrointestinal environment, the mucosal layer, and the epithelium. Neutral hydrophilic surfaces are reportedly necessary for mucus permeation, but hydrophobic and cationic surfaces are important for efficient epithelial absorption. To accommodate these conflicting surface property requirements, we developed a strategy to modify nanocarrier surfaces with cationic cell-penetrating peptides (CPP) concealed by a hydrophilic succinylated casein (SCN) layer. SCN is a mucus-inert natural material specifically degraded in the intestine, thus protecting nanocarriers from the harsh gastric environment, facilitating their mucus permeation, and inducing exposure of CPPs after degradation for further effective transepithelial transport. Quantum dots doped hollow silica nanoparticles (HSQN) with a diameter around 180 nm was used as the nanocarrier and demonstrated as high as 50% loading efficacy of paclitaxel, a model drug with poor solubility and permeability. The dual layer modification strategy prevented premature drug leakage in stomach and maintained high mucus permeation (the trajectory spanned 9-fold larger area than single CPP modification). After intestinal degradation of SCN by trypsin, these nanocarriers exhibited strong interaction with epithelial membranes and a 5-fold increase in cellular uptake. Significant transepithelial transport and intestinal distribution were also observed for this dual-modified formulation. A pharmacokinetics study on the paclitaxel-loaded nanocarrier found 40% absolute bioavailability and 7.8-fold higher AUC compared to oral Taxol®. Compared with single CPP modified nanocarriers, our formulation showed increased in vivo efficacy and tumor accumulation of the model drug with negligible intestinal toxicity. In summary, sequential modification with CPP and SCN layers on HSQN offers a potential strategy to overcome the multiple barriers of the gastrointestinal tract. STATEMENT OF SIGNIFICANCE Oral administration of nanocarriers remains a big challenge due to the multiple gastrointestinal barriers. In order to achieve both strong mucus permeation and efficient epithelial absorption, we modified the surface of silica nanoparticles with two layers: cell penetrating peptide (CPP) layer and succinylated casein (SCN) layer. The newly developed nanoformulations are demonstrated to have the following advantages: 1) versatile carrier with easy preparation, 2) high drug loading especially for poor soluble molecules, 3) reduced drug leakage in the stomach, 4) effective mucus penetration and transepithelial transport and 5) good biocompatibility, which in all indicate a great potential of this bilayer-modification strategy to facilitate the oral delivery of therapeutic agents.
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Yang Z, Tian L, Liu J, Huang G. Construction and evaluation in vitro and in vivo of tedizolid phosphate loaded cationic liposomes. J Liposome Res 2017; 28:322-330. [PMID: 28920493 DOI: 10.1080/08982104.2017.1380665] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
First, the SA-TDZA-Lips were prepared by reverse-phase evaporation method. Then, the drug release behaviour was evaluated by dynamic membrane dialysis in vitro and the preliminary safety was evaluated by haemolysis method. Finally, with tedizolid phosphate injection (TDZA-Inj) and tedizolid phosphate loaded liposomes (TDZA-Lips) as the control groups, the pharmacokinetic characteristic and tissues distribution of SA-TDZA-Lips were evaluated after intravenous injection. As a result, the stearylamine modified tedizolid phosphate liposomal delivery system was constructed successfully and the particle size was 194.9 ± 2.93 nm. The encapsulation efficiency (EE) was 53.52 ± 2.18%. The in vitro release of SA-TDZA-Lips was in accordance with Weibull equation. And there was no haemolysis happened, which indicated good preliminary safety for injection. The results of pharmacokinetics showed that the t1/2β increased by 0.74 times and 0.51 times higher than that of TDZA-Inj group and TDZA-Lips group, respectively. The MRT of SA-TDZA-Lips was 1.30 and 1.09 times higher than that of TDZA-Inj group and TDZA-Lips group, respectively. The AUC was 2.40 times and 0.23 times higher than that of TDZA-Inj group and TDZA-Lips group, respectively. The tissue distribution results showed that the relative uptake rate (Re) of TDZA in the lung was 1.527, which indicated the targeting. In conclusion, the SA-TDZA-Lips prepared in this study had several advantages like positive charge, strong cell affinity, prolonged circulation time in vivo, sustained release effect, and increased drug concentration in lungs. All advantages above provided significant clinical value of application for the treatment of bacterial pneumonia with tedizolid phosphate.
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Affiliation(s)
- Zhenlei Yang
- a School of Pharmaceutical Sciences , Shandong University , Jinan , PR China
| | - Liu Tian
- a School of Pharmaceutical Sciences , Shandong University , Jinan , PR China
| | - Jingjing Liu
- a School of Pharmaceutical Sciences , Shandong University , Jinan , PR China
| | - Guihua Huang
- a School of Pharmaceutical Sciences , Shandong University , Jinan , PR China
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Liu X, Han M, Xu J, Geng S, Zhang Y, Ye X, Gou J, Yin T, He H, Tang X. Asialoglycoprotein receptor-targeted liposomes loaded with a norcantharimide derivative for hepatocyte-selective targeting. Int J Pharm 2017; 520:98-110. [DOI: 10.1016/j.ijpharm.2017.02.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 01/30/2017] [Accepted: 02/02/2017] [Indexed: 12/13/2022]
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Micro- and nano-carrier systems: The non-invasive and painless local administration strategies for disease therapy in mucosal tissues. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:153-171. [DOI: 10.1016/j.nano.2016.08.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 08/05/2016] [Accepted: 08/17/2016] [Indexed: 12/12/2022]
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40
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Chitosan coated vancomycin hydrochloride liposomes: Characterizations and evaluation. Int J Pharm 2015; 495:508-515. [PMID: 26325316 DOI: 10.1016/j.ijpharm.2015.08.085] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/11/2015] [Accepted: 08/26/2015] [Indexed: 11/21/2022]
Abstract
The present work evaluated the feasibility of chitosan coated liposomes (c-Lips) for the intravenous delivery of vancomycin hydrochloride (VANH), a water-soluble antibiotic for the treatment of gram-positive bacterial infections like osteomyelitis, arthritis, endocarditis, pneumonia, etc. The objective of this research was to develop a suitable drug delivery system in vivo which could improve therapeutic efficacy and decrease side effects especially nephrotoxicity. Firstly, the vancomycin hydrochloride liposomes (VANH-Lips) were prepared by modified reverse phase evaporation method, then the chitosan wrapped vancomycin hydrochloride liposomes (c-VANH-Lips) nanosuspension was formulated by the method of electrostatic deposition. Based on the optimized results of single-factor screening experiment, the c-VANH-Lips were found to be relatively uniform in size (220.40 ± 3.56 nm) with a narrow polydispersity index (PI) (0.21 ± 0.03) and a positive zeta potential (25.7 ± 1.12 mV). The average drug entrapment efficiency (EE) and drug loading (DL) were 32.65 ± 0.59% and 2.18 ± 0.04%, respectively. The in vitro release profile of c-VANH-Lips possessed a sustained release Characterization and the release behavior was in accordance with the Weibull equation. Hemolysis experiments showed that its intravenous injection had preliminary safety. In vivo, after intravenous injection to mice, c-VANH-Lips showed a longer retention time and higher AUC values compared with the VANH injection (VANH-Inj) and VANH-Lips. In addition, biodistribution results clearly demonstrated that c-VANH-Lips preferentially decreased the drug distribution in kidney of mice after intravenous injection. These results revealed that injectable c-VANH-Lips may serve as a promising carrier for VANH to increase therapeutic efficacy on gram-positive bacterial infections and reduce nephrotoxicity, which provides significantly clinical value for long-term use of VANH.
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