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Su Z, Li L, Hao F, Zhao J, Li M, Zhao X, Zhao D. A Stable Irinotecan Liposome with Enhanced Antitumor Activity in a Range of Tumor Models. Pharm Res 2023; 40:3043-3058. [PMID: 37914843 DOI: 10.1007/s11095-023-03622-w] [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: 06/13/2023] [Accepted: 10/11/2023] [Indexed: 11/03/2023]
Abstract
PURPOSE This study aimed to prepare a stable irinotecan liposome (CPT-11 liposome) and evaluate its antitumor efficacy in a range of tumor models. METHODS CPT-11 liposome was prepared with a Z-average particle size of 110 ~ 120 nm and high entrapment efficiency (> 95%) and had a good stability within 18 months. Then the antitumor efficacy was studied in human colon (Ls-174t), gastric (NCI-N87), pancreatic (BxPC-3) and small cell lung (NCI-H526) cancer xenograft models. The toxicity of high-dose CPT-11 liposome was also evaluated in Beagle dogs. RESULTS The results showed that the anti-tumor effects of CPT-11 liposome were markedly superior (at least 10 times higher) to those of the CPT-11 injection group in all four xenograft models. The tissue distribution test in the Ls-174t model further demonstrated that the CPT-11 liposome could alter the plasma and tissue distribution of CPT-11, increase the exposure level of its active metabolite SN-38 in tumor, and ultimately improve antitumor efficiency. Meanwhile, CPT-11 liposome showed a much less toxicity than CPT-11 injection in beagle dogs. CONCLUSIONS Overall, the CPT-11 liposome may be developed as a new clinical alternative for the cancer patients.
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Affiliation(s)
- Zhengxing Su
- Sichuan Kelun Pharmaceutical Research Institute Co. Ltd., Chengdu, 611130, China
- Hunan Kelun Pharmaceutical Institute Co. Ltd., Yueyang, 414199, China
| | - Li Li
- Department of Pharmacy, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Fei Hao
- Sichuan Kelun Pharmaceutical Research Institute Co. Ltd., Chengdu, 611130, China
| | - Jinlong Zhao
- Sichuan Kelun Pharmaceutical Research Institute Co. Ltd., Chengdu, 611130, China
- Hunan Kelun Pharmaceutical Institute Co. Ltd., Yueyang, 414199, China
| | - Ming Li
- Sichuan Kelun Pharmaceutical Research Institute Co. Ltd., Chengdu, 611130, China
| | - Xi Zhao
- Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd., Chengdu, 611130, China
| | - Dong Zhao
- Sichuan Kelun Pharmaceutical Research Institute Co. Ltd., Chengdu, 611130, China.
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2
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Liposomes: Advancements and innovation in the manufacturing process. Adv Drug Deliv Rev 2020; 154-155:102-122. [PMID: 32650041 DOI: 10.1016/j.addr.2020.07.002] [Citation(s) in RCA: 244] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/13/2020] [Accepted: 07/02/2020] [Indexed: 12/18/2022]
Abstract
Liposomes are well recognised as effective drug delivery systems, with a range of products approved, including follow on generic products. Current manufacturing processes used to produce liposomes are generally complex multi-batch processes. Furthermore, liposome preparation processes adopted in the laboratory setting do not offer easy translation to large scale production, which may delay the development and adoption of new liposomal systems. To promote advancement and innovation in liposome manufacturing processes, this review considers the range of manufacturing processes available for liposomes, from laboratory scale and scale up, through to large-scale manufacture and evaluates their advantages and limitations. The regulatory considerations associated with the manufacture of liposomes is also discussed. New innovations that support leaner scalable technologies for liposome fabrication are outlined including self-assembling liposome systems and microfluidic production. The critical process attributes that impact on the liposome product attributes are outlined to support potential wider adoption of these innovations.
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3
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Kanwa N, De SK, Maity A, Chakraborty A. Interaction of aliphatic amino acids with zwitterionic and charged lipid membranes: hydration and dehydration phenomena. Phys Chem Chem Phys 2020; 22:3234-3244. [DOI: 10.1039/c9cp06188f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aliphatic amino acids interact differently in order to induce gelation or fluidization in zwitterionic and charged lipid membranes as a result of hydration or dehydration of the membrane surface.
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Affiliation(s)
- Nishu Kanwa
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Soumya Kanti De
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Avijit Maity
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Anjan Chakraborty
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
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4
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Has C, Sunthar P. A comprehensive review on recent preparation techniques of liposomes. J Liposome Res 2019; 30:336-365. [DOI: 10.1080/08982104.2019.1668010] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- C. Has
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - P. Sunthar
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
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5
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Creatine nanoliposome reverts the HPA-induced damage in complex II–III activity of the rats’ cerebral cortex. Mol Biol Rep 2019; 46:5897-5908. [DOI: 10.1007/s11033-019-05023-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 08/06/2019] [Indexed: 12/12/2022]
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6
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Inhaled Antibiotics for Mycobacterial Lung Disease. Pharmaceutics 2019; 11:pharmaceutics11070352. [PMID: 31331119 PMCID: PMC6680843 DOI: 10.3390/pharmaceutics11070352] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/09/2019] [Accepted: 07/15/2019] [Indexed: 12/22/2022] Open
Abstract
Mycobacterial lung diseases are an increasing global health concern. Tuberculosis and nontuberculous mycobacteria differ in disease severity, epidemiology, and treatment strategies, but there are also a number of similarities. Pathophysiology and disease progression appear to be relatively similar between these two clinical diagnoses, and as a result these difficult to treat pulmonary infections often require similarly extensive treatment durations of multiple systemic drugs. In an effort to improve treatment outcomes for all mycobacterial lung diseases, a significant body of research has investigated the use of inhaled antibiotics. This review discusses previous research into inhaled development programs, as well as ongoing research of inhaled therapies for both nontuberculous mycobacterial lung disease, and tuberculosis. Due to the similarities between the causative agents, this review will also discuss the potential cross-fertilization of development programs between these similar-yet-different diseases. Finally, we will discuss some of the perceived difficulties in developing a clinically utilized inhaled antibiotic for mycobacterial diseases, and potential arguments in favor of the approach.
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7
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Borin DB, Mezzomo NJ, Vaucher RA, Carmo GDO, Rodrigues Junior LC, Sulczewski FB, Schwertz CI, Mendes RE, Damiani AP, Andrade VMDE, Rech VC, Boeck CR. Production, characterization and toxicology assay of creatine pegylated nanoliposome with polysorbate 80 for brain delivery. AN ACAD BRAS CIENC 2018; 90:2317-2329. [PMID: 29694498 DOI: 10.1590/0001-3765201820170553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 07/26/2017] [Indexed: 12/24/2022] Open
Abstract
Creatine acts intracellularly as energy buffer and storage, demonstrating protective effects in animal models of neurodegenerative diseases. However, its permeability throught blood-brain barrier (BBB) is reduced. The aim of the present study was developing a carrier to facilitate the delivery of creatine to the central nervous system. Creatine nanoliposomes were produced, characterized and assayed in models of toxicity in vitro and in vivo. Particles showed negative zeta potential (-12,5 mV), polydispersity index 0.237 and medium-size of 105 nm, which was confirmed by transmission electron microscopy (TEM) images. Toxicity assay in vitro was evaluated with blank liposomes (no drug) or creatine nanoliposomes at concentrations of 0.02 and 0.2 mg/mL, that did not influence the viability of Vero cells. The result. of the comet assay that the nanoliposomes are not genotoxic, togeher with cell viability demonstrated that the nanoliposomes are not toxic. Besides, in vivo assays not demonstrate toxicity in hematological and biochemical markers of young rats. Nevertheless, increase content of creatine in the cerebral cortex tissue after subchronic treatment was observed. Altogether, results indicate increase permeability of creatine to the BBB that could be used as assay for in vivo studies to confirm improved effect than free creatine.
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Affiliation(s)
- Diego B Borin
- Centro Universitário Franciscano, Rua dos Andradas, 1614, Centro, 97010-032 Santa Maria, RS, Brazil
| | - Nathana J Mezzomo
- Universidade Federal de Santa Maria, Av. Roraima, 1000, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Rodrigo A Vaucher
- Universidade Federal de Pelotas, Rua Gomes Carneiro, 1, Centro, 96010-610 Pelotas, RS, Brazil
| | - Guilherme DO Carmo
- Universidade Federal de Santa Maria, Av. Roraima, 1000, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Luiz C Rodrigues Junior
- Universidade Federal de Ciências da Saúde de Porto Alegre, Rua Sarmento Leite, 245, Centro Histórico, 90050-170 Porto Alegre, RS, Brazil
| | - Fernando B Sulczewski
- Centro Universitário Franciscano, Rua dos Andradas, 1614, Centro, 97010-032 Santa Maria, RS, Brazil
| | - Claiton I Schwertz
- Instituto Federal Catarinense, Rodovia SC 283, s/n, Vila Fragosos, 89700-000 Concórdia, SC, Brazil
| | - Ricardo E Mendes
- Instituto Federal Catarinense, Rodovia SC 283, s/n, Vila Fragosos, 89700-000 Concórdia, SC, Brazil
| | - Adriani P Damiani
- Universidade do Extremo Sul Catarinense, Av. Universitária, 1105, Universitário, 88806-000 Criciúma, SC, Brazil
| | - Vanessa M DE Andrade
- Universidade do Extremo Sul Catarinense, Av. Universitária, 1105, Universitário, 88806-000 Criciúma, SC, Brazil
| | - Virgínia C Rech
- Centro Universitário Franciscano, Rua dos Andradas, 1614, Centro, 97010-032 Santa Maria, RS, Brazil
| | - Carina R Boeck
- Centro Universitário Franciscano, Rua dos Andradas, 1614, Centro, 97010-032 Santa Maria, RS, Brazil
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Xu K, Liang ZC, Ding X, Hu H, Liu S, Nurmik M, Bi S, Hu F, Ji Z, Ren J, Yang S, Yang YY, Li L. Nanomaterials in the Prevention, Diagnosis, and Treatment of Mycobacterium Tuberculosis Infections. Adv Healthc Mater 2018; 7. [PMID: 28941042 DOI: 10.1002/adhm.201700509] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 06/23/2017] [Indexed: 11/10/2022]
Abstract
Despite the tremendous advancements that have been made in biomedical research, Mycobacterium tuberculosis (TB) still remains one of the top 10 causes of death worldwide, outpacing the Human Immunodeficiency Virus as a leading cause of death from an infectious disease. In the light of such significant disease burden, tremendous efforts have been made worldwide to stem this burgeoning spread of disease. The use of nanomaterials in TB management has increased in the past decade, particularly in the areas of early TB detection, prevention, and treatment. Nanomaterials have been proven to be efficacious in the rapid and accurate detection of TB pathogens. Novel nanocarriers have also shown tremendous promise in improving drug delivery, potentially enhancing drug concentrations in target organs while at the same time, reducing treatment frequency. In addition, the engineering of antigen nanocarriers represents an exciting front in TB research, potentially paving the way for the successful development of a new class of effective TB vaccines. This article discusses epidemiology and pathogenesis of TB infections, current TB therapeutics, advanced nanomaterials for anti-TB drug delivery, and TB vaccines. In addition, challenges and future perspectives in developing safe and effective nanomaterials in TB diagnosis and therapy are also presented.
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Affiliation(s)
- Kaijin Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou 310003 P. R. China
| | - Zhen Chang Liang
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way The Nanos 138669 Singapore
| | - Xin Ding
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way The Nanos 138669 Singapore
| | - Haiyang Hu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou 310003 P. R. China
| | - Shaoqiong Liu
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way The Nanos 138669 Singapore
| | - Martin Nurmik
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way The Nanos 138669 Singapore
| | - Sheng Bi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou 310003 P. R. China
| | - Feishu Hu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou 310003 P. R. China
| | - Zhongkang Ji
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou 310003 P. R. China
| | - Jingjing Ren
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou 310003 P. R. China
| | - Shigui Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou 310003 P. R. China
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way The Nanos 138669 Singapore
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; The First Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou 310003 P. R. China
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9
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Sebaaly C, Greige-Gerges H, Stainmesse S, Fessi H, Charcosset C. Effect of composition, hydrogenation of phospholipids and lyophilization on the characteristics of eugenol-loaded liposomes prepared by ethanol injection method. FOOD BIOSCI 2016. [DOI: 10.1016/j.fbio.2016.04.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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García-Manrique P, Matos M, Gutiérrez G, Estupiñán OR, Blanco-López MC, Pazos C. Using Factorial Experimental Design To Prepare Size-Tuned Nanovesicles. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b01552] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pablo García-Manrique
- Department of Chemical
and Environmental Engineering and ‡Department of
Physical and Analytical Chemistry, University of Oviedo, Julián
Clavería 8, 33006 Oviedo, Spain
| | - María Matos
- Department of Chemical
and Environmental Engineering and ‡Department of
Physical and Analytical Chemistry, University of Oviedo, Julián
Clavería 8, 33006 Oviedo, Spain
| | - Gemma Gutiérrez
- Department of Chemical
and Environmental Engineering and ‡Department of
Physical and Analytical Chemistry, University of Oviedo, Julián
Clavería 8, 33006 Oviedo, Spain
| | - Oscar R. Estupiñán
- Department of Chemical
and Environmental Engineering and ‡Department of
Physical and Analytical Chemistry, University of Oviedo, Julián
Clavería 8, 33006 Oviedo, Spain
| | - María Carmen Blanco-López
- Department of Chemical
and Environmental Engineering and ‡Department of
Physical and Analytical Chemistry, University of Oviedo, Julián
Clavería 8, 33006 Oviedo, Spain
| | - Carmen Pazos
- Department of Chemical
and Environmental Engineering and ‡Department of
Physical and Analytical Chemistry, University of Oviedo, Julián
Clavería 8, 33006 Oviedo, Spain
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11
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Duong AD, Collier MA, Bachelder EM, Wyslouzil BE, Ainslie KM. One Step Encapsulation of Small Molecule Drugs in Liposomes via Electrospray-Remote Loading. Mol Pharm 2015; 13:92-9. [PMID: 26568143 PMCID: PMC10372480 DOI: 10.1021/acs.molpharmaceut.5b00528] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Resiquimod is a Toll-like receptor (TLR) 7/8 agonist that has previously been used as a vaccine adjuvant, as a topical treatment of viral lesions and skin cancer, and as an antiviral treatment. We report on the combined application of remote loading and electrospray to produce liposomal resiquimod, with the broader goals of improving drug encapsulation efficiency and scalability of liposome production methods. Drug loading in liposomes increased from less than 1% to greater that 3% by mass when remote loading was used, whether the liposomes were generated by thin-film hydration or electrospray methods. Dynamic light scattering (DLS) determined mean vesicle diameters of 137 ± 11 nm and 103 ± 4 for the thin-film and electrospray methods, respectively. Transmission electron microscopy (TEM) images showed spherical vesicles with sizes consistent with the DLS measurements. In vitro drug release profiles found that most of the drug remained within the liposomes at both pH 5.5 and 7.4. The in vitro bioactivity of the liposomal drug was also demonstrated by the increase in nitrite production when RAW macrophages were exposed to the drug. Our findings indicate that the remotely loaded liposomes formed via the scalable electrospray method have characteristics comparable to those produced via conventional batch methods. The methods discussed here are not limited to the enhanced delivery of resiquimod. Rather, they should be readily adaptable to other compounds compatible with remote loading.
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Affiliation(s)
- Anthony D Duong
- William G. Lowrie Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University , Columbus, Ohio 43210, United States
| | - Michael A Collier
- Division of Molecular Pharmaceutics, College of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Eric M Bachelder
- Division of Molecular Pharmaceutics, College of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Barbra E Wyslouzil
- William G. Lowrie Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University , Columbus, Ohio 43210, United States.,Department of Chemistry and Biochemistry, College of Arts and Sciences, The Ohio State University , Columbus, Ohio 43210, United States
| | - Kristy M Ainslie
- Division of Molecular Pharmaceutics, College of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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12
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Inhaled drug treatment for tuberculosis: Past progress and future prospects. J Control Release 2015; 240:127-134. [PMID: 26596254 DOI: 10.1016/j.jconrel.2015.11.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 11/13/2015] [Accepted: 11/16/2015] [Indexed: 02/07/2023]
Abstract
Since the 1990s the rising incidence of multiple drug resistant TB, particularly in the context of human immunodeficiency virus co-infected patients, has threatened global TB control. At that time funding agencies began to support formal investigation of aerosol therapy which until then had been the subject of case reports of individual investigators. Over the last decade, proponents of aerosol therapy have increased in number within the TB research community as the incidence of multiple and extremely drug resistant TB has increased dramatically around the world. Aerosol therapy offers the potential to deliver drug at target concentrations directly into the lungs, use the alveolar-capillary interface to achieve systemic levels, while reducing the risk of systemic toxicity seen with parentally administered doses. In addition, there are insufficient new drugs in the pipeline to anticipate the appearance of a new regimen in time to assure future control of drug resistance. Consequently, alternative strategies are critical to achieving global TB control, and inhaled therapies should be considered as one such strategy.
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Justo OR, Simioni PU, Gabriel DL, Tamashiro WMDSC, Rosa PDTV, Moraes ÂM. Evaluation of in vitro anti-inflammatory effects of crude ginger and rosemary extracts obtained through supercritical CO2 extraction on macrophage and tumor cell line: the influence of vehicle type. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:390. [PMID: 26511466 PMCID: PMC4625945 DOI: 10.1186/s12906-015-0896-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 10/05/2015] [Indexed: 01/24/2023]
Abstract
BACKGROUND Numerous plants from have been investigated due to their anti-inflammatory activity and, among then, extracts or components of ginger (Zingiber officinale Roscoe) and rosemary (Rosmarinus officinalis L.), sources of polyphenolic compounds. 6-gingerol from ginger rhizome and carnosic acid and carnosol from rosemary leaves present anti-tumor, anti-inflammatory and antioxidant activities. However, the evaluation of the mechanisms of action of these and other plant extracts is limited due to their high hydrophobicity. Dimethylsulfoxide (DMSO) is commonly used as a vehicle of liposoluble materials to mammalian cells in vitro, presenting enhanced cell penetration. Liposomes are also able to efficiently deliver agents to mammalian cells, being capable to incorporate in their structure not only hydrophobic molecules, but also hydrophilic and amphiphilic compounds. Another strategy is based on the use of Pluronic F-68, a biocompatible low-foaming, non-ionic surfactant, to disperse hydrophobic components. Here, these three delivery approaches were compared to analyze their influence on the in vitro anti-inflammatory effects of ginger and rosemary extracts, at different concentrations, on primary mammalian cells and on a tumor cell line. METHODS Ginger and rosemary extracts free of organic solvents were obtained by supercritical fluid extraction and dispersed in DMSO, Pluronic F-68 or liposomes, in variable concentrations. Cell viability, production of inflammatory mediators and nitric oxide (NO) release were measured in vitro on J774 cell line and murine macrophages primary culture stimulated with bacterial lipopolysaccharide and interferon-γ after being exposed or not to these extracts. RESULTS Ginger and rosemary extracts obtained by supercritical CO2 extraction inhibited the production of pro-inflammatory cytokines and the release of NO by peritoneal macrophages and J774 cells. The delivery vehicles influenced the anti-inflammatory effects. Comparatively, the ginger extract showed the highest anti-inflammatory activity on the tumor cell line. Controversially, rosemary extract dispersed on DMSO induced a more significant IL-1 and TNF-α reduction than ginger extract in primary macrophages. CONCLUSIONS Amongst the tested delivery vehicles, DMSO was the most suitable, presenting reduced cytotoxicity, followed by Pluronic F-68 and liposomes, provably due to differences in their form of absorption, distribution and cellular metabolism. Co-administration of liposomes and plant extracts may cause death of macrophages cells and induction of NO production. It can be concluded that some of the beneficial effects attributed to extracts of ginger and rosemary may be associated with the inhibition of inflammatory mediators due to their high antioxidant activity. However, these effects were influenced by the type of delivery vehicle.
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Affiliation(s)
- Oselys Rodriguez Justo
- Department of Engineering of Materials and of Bioprocesses - School of Chemical Engineering, University of Campinas, 13083-852, Campinas, SP, Brazil
| | - Patricia Ucelli Simioni
- Department of Genetics, Evolution and Bioagents - Institute of Biology, University of Campinas, 13083-970, Campinas, SP, Brazil
| | - Dirce Lima Gabriel
- Department of Genetics, Evolution and Bioagents - Institute of Biology, University of Campinas, 13083-970, Campinas, SP, Brazil
| | | | - Paulo de Tarso Vieira Rosa
- Departament of Physical Chemistry - Institute of Chemistry, University of Campinas, 13083-970, Campinas, SP, Brazil
| | - Ângela Maria Moraes
- Department of Engineering of Materials and of Bioprocesses - School of Chemical Engineering, University of Campinas, 13083-852, Campinas, SP, Brazil.
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14
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Singh J, Garg T, Rath G, Goyal AK. Advances in nanotechnology-based carrier systems for targeted delivery of bioactive drug molecules with special emphasis on immunotherapy in drug resistant tuberculosis – a critical review. Drug Deliv 2015; 23:1676-98. [DOI: 10.3109/10717544.2015.1074765] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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15
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Olaru ID, von Groote-Bidlingmaier F, Heyckendorf J, Yew WW, Lange C, Chang KC. Novel drugs against tuberculosis: a clinician's perspective. Eur Respir J 2014; 45:1119-31. [PMID: 25431273 DOI: 10.1183/09031936.00162314] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The United Nations Millennium Development Goal of reversing the global spread of tuberculosis by 2015 has been offset by the rampant re-emergence of drug-resistant tuberculosis, in particular fluoroquinolone-resistant multidrug-resistant and extensively drug-resistant tuberculosis. After decades of quiescence in the development of antituberculosis medications, bedaquiline and delamanid have been conditionally approved for the treatment of drug-resistant tuberculosis, while several other novel compounds (AZD5847, PA-824, SQ109 and sutezolid) have been evaluated in phase II clinical trials. Before novel drugs can find their place in the battle against drug-resistant tuberculosis, linezolid has been compassionately used with success in the treatment of fluoroquinolone-resistant multidrug-resistant tuberculosis. This review largely discusses six novel drugs that have been evaluated in phase II and III clinical trials, with focus on the clinical evidence for efficacy and safety, potential drug interactions, and prospect for using multiple novel drugs in new regimens.
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Affiliation(s)
- Ioana Diana Olaru
- Division of Clinical Infectious Diseases, Research Center Borstel, German Center for Infection Research, Clinical Tuberculosis Center, Borstel, Germany
| | | | - Jan Heyckendorf
- Division of Clinical Infectious Diseases, Research Center Borstel, German Center for Infection Research, Clinical Tuberculosis Center, Borstel, Germany
| | - Wing Wai Yew
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Hong Kong, China
| | - Christoph Lange
- Division of Clinical Infectious Diseases, Research Center Borstel, German Center for Infection Research, Clinical Tuberculosis Center, Borstel, Germany International Health/Infectious Diseases, University of Lübeck, Lübeck, Germany Dept of Internal Medicine, University of Namibia School of Medicine, Windhoek, Namibia Dept of Medicine, Karolinska Institute, Stockholm, Sweden
| | - Kwok Chiu Chang
- Tuberculosis and Chest Service, Dept of Health, Hong Kong, China
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16
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Andrade F, Rafael D, Videira M, Ferreira D, Sosnik A, Sarmento B. Nanotechnology and pulmonary delivery to overcome resistance in infectious diseases. Adv Drug Deliv Rev 2013; 65:1816-27. [PMID: 23932923 PMCID: PMC7103277 DOI: 10.1016/j.addr.2013.07.020] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 07/18/2013] [Indexed: 12/22/2022]
Abstract
Used since ancient times especially for the local treatment of pulmonary diseases, lungs and airways are a versatile target route for the administration of both local and systemic drugs. Despite the existence of different platforms and devices for the pulmonary administration of drugs, only a few formulations are marketed, partly due to physiological and technological limitations. Respiratory infections represent a significant burden to health systems worldwide mainly due to intrahospital infections that more easily affect immune-compromised patients. Moreover, tuberculosis (TB) is an endemic infectious disease in many developing nations and it has resurged in the developed world associated with the human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) epidemic. Currently, medicine faces the specter of antibiotic resistance. Besides the development of new anti-infectious drugs, the development of innovative and more efficient delivery systems for drugs that went off patent appears as a promising strategy pursued by the pharmaceutical industry to improve the therapeutic outcomes and to prolong the utilities of their intellectual property portfolio. In this context, nanotechnology-based drug delivery systems (nano-DDS) emerged as a promising approach to circumvent the limitations of conventional formulations and to treat drug resistance, opening the hypothesis for new developments in this area.
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Liu D, Hu H, Lin Z, Chen D, Zhu Y, Hou S, Shi X. Quercetin deformable liposome: Preparation and efficacy against ultraviolet B induced skin damages in vitro and in vivo. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2013; 127:8-17. [DOI: 10.1016/j.jphotobiol.2013.07.014] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 07/10/2013] [Accepted: 07/11/2013] [Indexed: 10/26/2022]
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Tang S, Gao D, Zhao T, Zhou J, Zhao X. An evaluation of the anti-tumor efficacy of oleanolic acid-loaded PEGylated liposomes. NANOTECHNOLOGY 2013; 24:235102. [PMID: 23670283 DOI: 10.1088/0957-4484/24/23/235102] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The effective delivery of oleanolic acid (OA) to the target site has several benefits in therapy for different pathologies. However, the delivery of OA is challenging due to its poor aqueous solubility. The study aims to evaluate the tumor inhibition effect of the PEGylated OA nanoliposome on the U14 cervical carcinoma cell line. In our previous study, OA was successfully encapsulated into PEGylated liposome with the modified ethanol injection method. Oral administration of PEGylated OA liposome was demonstrated to be more efficient in inhibiting xenograft tumors. The results of organ index indicated that PEG liposome exhibited higher anti-tumor activity and lower cytotoxicity. It was also found that OA and OA liposomes induced tumor cell apoptosis detected by flow cytometry. Furthermore, effects of OA on the morphology of tumor and other tissues were observed by hematoxylin and eosin staining. The histopathology sections did not show pathological changes in kidney or liver in tested mice. In contrast, there was a significant difference in tumor tissues between treatment groups and the negative control group. These observations imply that PEGylated liposomes seem to have advantages for cancer therapy in terms of effective delivery of OA.
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Affiliation(s)
- Shengnan Tang
- Applied Chemical Key Lab of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, No. 438 Hebei Street, Qinhuangdao 066004, People's Republic of China
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Gao D, Tang S, Tong Q. Oleanolic acid liposomes with polyethylene glycol modification: promising antitumor drug delivery. Int J Nanomedicine 2012; 7:3517-26. [PMID: 22848175 PMCID: PMC3405888 DOI: 10.2147/ijn.s31725] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Oleanolic acid is a pentacyclic triterpene present in many fruits and vegetables, and has received much attention on account of its biological properties. However, its poor solubility and low bioavailability limit its use. The objective of this study was to encapsulate oleanolic acid into nanoliposomes using the modified ethanol injection method. METHODS The liposomes contain a hydrophobic oleanolic acid core, an amphiphilic soybean lecithin monolayer, and a protective hydrophilic polyethylene glycol (PEG) coating. During the preparation process, the formulations described were investigated by designing 3⁴ orthogonal experiments as well as considering the effects of different physical characteristics. The four factors were the ratios of drug to soybean phosphatidylcholine (w/w), cholesterol (w/w), PEG-2000 (w/w), and temperature of phosphate-buffered saline at three different levels. We identified the optimized formulation which showed the most satisfactory lipid stability and particle formation. The morphology of the liposomes obtained was determined by transmission electron microscopy and atomic force microscopy. The existence of PEG in the liposome component was validated by Fourier transform infrared spectrum analysis. RESULTS The PEGylated liposomes dispersed individually and had diameters of around 110-200 nm. Encapsulation efficiency was more than 85%, as calculated by high-performance liquid chromatography and Sephadex® gel filtration. Furthermore, when compared with native oleanolic acid, the liposomal formulations showed better stability in vitro. Finally, the cytotoxicity of the oleanolic acid liposomes was evaluated using a microtiter tetrazolium assay. CONCLUSION These results suggest that PEGylated liposomes would serve as a potent delivery vehicle for oleanolic acid in future cancer therapy.
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Affiliation(s)
- Dawei Gao
- Applied Chemical Key Laboratory of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, China.
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Chen KH, Mueannoom W, Gaisford S, Kett VL. Investigation into the effect of varying l-leucine concentration on the product characteristics of spray-dried liposome powders. J Pharm Pharmacol 2012; 64:1412-24. [DOI: 10.1111/j.2042-7158.2012.01521.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abstract
Objectives
Spray-dried formulations offer an attractive delivery system for administration of drug encapsulated into liposomes to the lung, but can suffer from low encapsulation efficiency and poor aerodynamic properties. In this paper the effect of the concentration of the anti-adherent l-leucine was investigated in tandem with the protectants sucrose and trehalose.
Methods
Two manufacturing methods were compared in terms of their ability to offer small liposomal size, low polydispersity and high encapsulation of the drug indometacin.
Key findings
Unexpectedly sucrose offered the best protection to the liposomes during the spray drying process, although formulations containing trehalose formed products with the best powder characteristics for pulmonary delivery; high glass transition values, fine powder fraction and yield. It was also found that l-leucine contributed positively to the characteristics of the powders, but that it should be used with care as above the optimum concentration of 0.5% (w/w) the size and polydispersity index increased significantly for both disaccharide formulations.
Conclusions
The method of liposome preparation had no effect on the stability or encapsulation efficiency of spray-dried powders containing optimal protectant and anti-adherent. Using l-leucine at concentrations higher than the optimum level caused instability in the reconstituted liposomes.
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Affiliation(s)
- Kun-Hung Chen
- School of Pharmacy, Queen's University of Belfast, Belfast, UK
| | | | - Simon Gaisford
- The School of Pharmacy, University of London, London, UK
| | - Vicky L Kett
- School of Pharmacy, Queen's University of Belfast, Belfast, UK
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Abstract
Because of limitations associated with the conventional treatment of various chronic diseases a growing attention has been given to the development of targeted drug delivery systems. Pulmonary route of drug delivery gaining much importance in the present day research field as it enables to target the drug delivery directly to lung both for local and systemic treatment. Over the last 2 decades, the systemic absorption of a broad range of therapeutics after pulmonary application has been demonstrated in animals as well as in humans. This review was prepared with an aim to discuss the technical, physiological, and efficacy aspects of the novel pulmonary route of drug targeting. The review also focuses on the mechanisms of pulmonary drug administration along with compatibility of the excipients employed, devices used, and techniques of particulate dosage production. This review was prepared based on the method of extensive literature survey on the topics covering all the aspects discussed in the present subject. Hence, the better understanding of complexes and challenges facing the development of pulmonary drug delivery system offer an opportunity to the pharmaceutical scientist in minimizing the clinical and technical gaps.
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Affiliation(s)
- J. S. Patil
- Department of Pharmaceutics, BLDEA's College of Pharmacy, BLDE University Campus, Bijapur, India
| | - S. Sarasija
- Department of Pharmaceutics, Al- Ameen College of Pharmacy, Hosur Road, Bangalore, Karnataka, India
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Song J, Shi F, Zhang Z, Zhu F, Xue J, Tan X, Zhang L, Jia X. Formulation and evaluation of celastrol-loaded liposomes. Molecules 2011; 16:7880-92. [PMID: 22143548 PMCID: PMC6264578 DOI: 10.3390/molecules16097880] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 09/05/2011] [Accepted: 09/05/2011] [Indexed: 11/16/2022] Open
Abstract
The main purpose of this study was to evaluate the intestinal absorption and the antineoplastic effect of the poorly water-soluble drug celastrol when liposomes were used as oral drug delivery system. Liposomes were prepared by the ethanol-injection method. An optimized liposome formulation composed of phospholipid, cholesterol and Tween-80 resulted in favorable encapsulation efficiency at 98.06 ± 0.94%. Homogeneous and stable particle size of 89.6 ± 7.3 nm and zeta potential of -(87.7 ± 5.8) mV were determined by laser particle size analyzer. Subsequently, the four-site perfusion rat intestinal model revealed that celastrol-loaded liposomes had improved effective permeability compared to the free drug in four intestinal segments (p < 0.05). Moreover, celastrol-loaded liposomes could also inhibit the tumor growth in C57BL/6 mice. These results suggest that liposomes could be a promising perioral carrier for celastrol.
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Affiliation(s)
- Jie Song
- Key Laboratory of Delivery Systems of Chinese Meteria Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing 210028, Jiangsu, China; (J.S.); (Z.Z.); (Z.F.); (J.X.); (X.T.)
| | - Feng Shi
- Department of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; (F.S.)
| | - Zhenhai Zhang
- Key Laboratory of Delivery Systems of Chinese Meteria Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing 210028, Jiangsu, China; (J.S.); (Z.Z.); (Z.F.); (J.X.); (X.T.)
| | - Fenxia Zhu
- Key Laboratory of Delivery Systems of Chinese Meteria Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing 210028, Jiangsu, China; (J.S.); (Z.Z.); (Z.F.); (J.X.); (X.T.)
| | - Jing Xue
- Key Laboratory of Delivery Systems of Chinese Meteria Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing 210028, Jiangsu, China; (J.S.); (Z.Z.); (Z.F.); (J.X.); (X.T.)
| | - Xiaobin Tan
- Key Laboratory of Delivery Systems of Chinese Meteria Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing 210028, Jiangsu, China; (J.S.); (Z.Z.); (Z.F.); (J.X.); (X.T.)
| | - Luyong Zhang
- National Center of Drug Screening, China Pharmaceutical University, Nanjing 210038, Jiangsu, China; (L.Z.)
| | - Xiaobin Jia
- Key Laboratory of Delivery Systems of Chinese Meteria Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing 210028, Jiangsu, China; (J.S.); (Z.Z.); (Z.F.); (J.X.); (X.T.)
- Author to whom correspondence should be addressed: ; Tel.: +86-25-856378091; Fax: +86-25-85637809
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Singodia D, Verma A, Khare P, Dube A, Mitra K, Mishra PR. Investigations on feasibility of in situ development of amphotericin B liposomes for industrial applications. J Liposome Res 2011; 22:8-17. [PMID: 21682670 DOI: 10.3109/08982104.2011.584317] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Amphotericin B (AmB) liposome formulations are very successful in the treatment of fungal infections and leishmaniasis. But higher cost limits its widespread use among people in developing countries. Therefore, we have developed a modified ethanol-injection method for the preparation of AmB liposomes. Two liposomal formulations were developed with dimyristoyl phosphatidylcholine [F-1a] and soya phosphatidylcholine [F-2a], along with egg phosphatidyl glycerol and cholesterol. AmB was dissolved in acidified dimethyl acetamide and mixed with ethanolic lipid solution and rapidly injected in 5% dextrose to prepare liposomes. Liposomes were characterized on the basis of size (~100 nm), zeta (-43.3 ± 2.8 mV) and percent entrapment efficiency (>95%). The in vitro release study showed an insignificant difference (P ≥ 0.05) for 24-hour release between marketed AmB liposomes (AmBisome) and F-1a and F-2a. Proliposome concentrate, used for the preparation of in situ liposomes, was physically stable for more than 3 months at experimental conditions. Similarly, AmB showed no sign of degradation in reconstituted liposomes stored at 2-8°C for more than 3 months. IC(50) value of Ambisome (0.18 µg/mL) was comparatively similar to F-1a (0.17 µg/mL) and F-2a (0.16 µg/mL) against intramacrophagic amastigotes. Under experimental conditions, a novel modified method for AmB liposomes is a great success and generates interest for development as a platform technology for many therapeutic drug products.
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Affiliation(s)
- Deepak Singodia
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, India
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Analysis of process parameters on the characteristics of liposomes prepared by ethanol injection with a view to process scale-up: Effect of temperature and batch volume. Chem Eng Res Des 2011. [DOI: 10.1016/j.cherd.2010.09.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Jaafar-Maalej C, Diab R, Andrieu V, Elaissari A, Fessi H. Ethanol injection method for hydrophilic and lipophilic drug-loaded liposome preparation. J Liposome Res 2010; 20:228-43. [PMID: 19899957 DOI: 10.3109/08982100903347923] [Citation(s) in RCA: 221] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this article, a hydrophobic (beclomethasone dipropionate; BDP) and a hydrophilic (cytarabine; Ara-C) drugs have been encapsulated in liposomes in order to be administered via the pulmonary route. For this aim, a liposome preparation method, which is easy to scale up, the ethanol injection method, has been selected. The effects of critical process and formulation parameters have been investigated. The drug-loaded liposomes were prepared and characterized in terms of size, zeta potential, encapsulation efficiency, release study, cell uptake, and aerodynamic behavior. Small multilamellar vesicles, with sizes ranging from about 80 to 170 nm, were successfully obtained. Results indicated a significant influence of phospholipid and cholesterol amounts on liposome size and encapsulation efficiency. The higher encapsulation efficiencies were about 100% for the hydrophobic drug (BDP) and about 16% for the hydrophilic one (Ara-C). The in vitro release study showed a prolonged release profile for BDP, in contrast with Ara-C, which was released more rapidly. The cell-uptake test revealed that fluorescent liposomes have been well internalized into the cytoplasm of SW-1573 human lung carcinoma cells, confirming the possibility to use liposomes for lung cell targeting. Nebulized Ara-C and BDP liposomes presented aerodynamic diameters compatible with deep lung deposition. In conclusion, the elaborated liposomes seem to be promising carriers for both Ara-C and BDP pulmonary delivery.
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Affiliation(s)
- Chiraz Jaafar-Maalej
- Pharmaceutical Technology Department, Laboratoire d'Automatique et de Génie de Procédés, LAGEP, UMR CNRS 5007, Université Claude Bernard Lyon 1, ISPBL-Faculté de Pharmacie de Lyon, Villeurbanne, France
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Elhissi AMA, Karnam KK, Danesh-Azari MR, Gill HS, Taylor KMG. Formulations generated from ethanol-based proliposomes for delivery via medical nebulizers. J Pharm Pharmacol 2010; 58:887-94. [PMID: 16805947 DOI: 10.1211/jpp.58.7.0002] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Multilamellar and oligolamellar liposomes were produced from ethanol-based soya phosphatidylcholine proliposome formulations by addition of isotonic sodium chloride or sucrose solutions. The resultant liposomes entrapped up to 62% of available salbutamol sulfate compared with only 1.23% entrapped by conventionally prepared liposomes. Formulations were aerosolized using an air-jet nebulizer (Pari LC Plus) or a vibrating-mesh nebulizer (Aeroneb Pro small mesh, Aeroneb Pro large mesh, or Omron NE U22). All vibrating-mesh nebulizers produced aerosol droplets having larger volume median diameter (VMD) and narrower size distribution than the air-jet nebulizer. The choice of liposome dispersion medium had little effect on the performance of the Pari nebulizer. However, for the Aeroneb Pro small mesh and Omron NE U22, the use of sucrose solution tended to increase droplet VMD, and reduce aerosol mass and phospholipid outputs from the nebulizers. For the Aeroneb Pro large mesh, sucrose solution increased the VMD of nebulized droplets, increased phospholipid output and produced no effect on aerosol mass output. The Omron NE U22 nebulizer produced the highest mass output (approx. 100%) regardless of formulation, and the delivery rates were much higher for the NaCl-dispersed liposomes compared with sucrose-dispersed formulation. Nebulization produced considerable loss of entrapped drug from liposomes and this was accompanied by vesicle size reduction. Drug loss tended to be less for the vibrating-mesh nebulizers than the jet nebulizer. The large aperture size mesh (8μm) Aeroneb Pro nebulizer increased the proportion of entrapped drug delivered to the lower stage of a twin impinger. This study has demonstrated that liposomes generated from proliposome formulations can be aerosolized in small droplets using air-jet or vibrating-mesh nebulizers. In contrast to the jet nebulizer, the performance of the vibrating-mesh nebulizers was greatly dependent on formulation. The high phospholipid output produced by the nebulizers employed suggests that both air-jet and vibrating-mesh nebulization may provide the potential of delivering liposome-entrapped or solubilized hydrophobic drugs to the airways.
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Affiliation(s)
- Abdelbary M A Elhissi
- Department of Pharmaceutics, School of Pharmacy, University of London, 29-39 Brunswick Square, London, UK.
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Justo OR, Moraes ÃM. Economical Feasibility Evaluation of an Ethanol Injection Liposome Production Plant. Chem Eng Technol 2010. [DOI: 10.1002/ceat.200800502] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Characterization of Nebulized Liposomal Amikacin (Arikace™) as a Function of Droplet Size. J Aerosol Med Pulm Drug Deliv 2008; 21:245-54. [DOI: 10.1089/jamp.2008.0686] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Milanino R, Buchner V. Copper: role of the 'endogenous' and 'exogenous' metal on the development and control of inflammatory processes. REVIEWS ON ENVIRONMENTAL HEALTH 2006; 21:153-215. [PMID: 17243347 DOI: 10.1515/reveh.2006.21.3.153] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Affiliation(s)
- Roberto Milanino
- Dipartimento di Medicina e Salute Pubblica, Sezione di Farmacologia, Facoltà di Medicina e Chirurgia, Università di Verona, Policlinico GB Rossi, I-37134, Verona, Italy.
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