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Orally Administered Amphotericin B Nanoformulations: Physical Properties of Nanoparticle Carriers on Bioavailability and Clinical Relevance. Pharmaceutics 2022; 14:pharmaceutics14091823. [PMID: 36145572 PMCID: PMC9505005 DOI: 10.3390/pharmaceutics14091823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/24/2022] Open
Abstract
Amphotericin B is an effective polyene antifungal considered as a “gold standard” in the management of fungal infections. Currently, it is administered mainly by IV due to poor aqueous solubility, which precludes its delivery orally. Paradoxically, IV administration is akin to side effects that have not been fully eliminated even with more recent IV formulations. Thus, the need for alternative formulations/route of administration for amphotericin B remains crucial. The oral route offers the possibility of delivering amphotericin B systemically and with diminished side effects; however, enterocyte permeation remains a constraint. Cellular phagocytosis of submicron particles can be used to courier encapsulated drugs. In this regard, nanoparticulate delivery systems have received much attention in the past decade. This review examines the trajectory of orally delivered amphotericin B and discusses key physical factors of nanoformulations that impact bioavailability. The review also explores obstacles that remain and gives a window into the possibility of realizing an oral nanoformulation of amphotericin B in the near future.
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Jing D, Wu W, Chen X, Xiao H, Zhang Z, Chen F, Zhang Z, Liu J, Shao Z, Pu F. Quercetin encapsulated in Folic Acid-Modified Liposomes is therapeutic against osteosarcoma by non-Covalent binding to the JH2 Domain of JAK2 Via the JAK2-STAT3-PDL1. Pharmacol Res 2022; 182:106287. [PMID: 35671921 DOI: 10.1016/j.phrs.2022.106287] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 05/19/2022] [Accepted: 06/01/2022] [Indexed: 11/29/2022]
Abstract
Osteosarcoma (OS) is a malignant solid tumor prone to lung metastasis that occurs in adolescents aged 15-19 years. Neoadjuvant chemotherapy and surgical treatment aimed at curing OS have gained limited progress over the last 30 years. Exploring new effective second-line therapies for OS patients is a serious challenge for researchers. Quercetin, a multiple biologically active polyphenolic flavonoid, has been used in tumor therapy. However, the exact mechanism of quercetin is still unknown, which limits the application of quercetin. In the current study, we found that quercetin could inhibit JAK2 through the JH2 domain in a non-covalent manner, resulting in the inhibition of OS proliferation and immune escape via the JAK2-STAT3-PD-L1 signaling axis. More importantly, to overcome the shortcomings of quercetin, including low water solubility and low oral availability, we encapsulated it with folic acid-modified liposomes. The transportation of quercetin by folic acid-modified liposomes may provide a feasible strategy to cure OS.
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Affiliation(s)
- Doudou Jing
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
| | - Wei Wu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
| | - Xuanzuo Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
| | - Hongwei Xiao
- Key Laboratory of Animal Embryo Engineering and Molecular Breeding of Hubei Province, Institute of Animal Science and Veterinary Medicine, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430064, P.R. China.
| | - Zhenhao Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
| | - Fengxia Chen
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China.
| | - Zhicai Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
| | - Jianxiang Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
| | - Zengwu Shao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
| | - Feifei Pu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
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Shaikh MS, Kale MA, Shaikh MDM, Mahaparale PR. Formulation, characterization and antimicrobial studies of lyophilized luliconazole nanosuspension for enhancing solubility using modified polymer. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1879077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mohd Sayeed Shaikh
- Department of Pharmaceutical Chemistry, Government College of Pharmacy Aurangabad, Maharashtra, India
| | - Mayura A. Kale
- Department of Pharmaceutical Chemistry, Government College of Pharmacy Aurangabad, Maharashtra, India
| | - MD Mujtba Shaikh
- Department of Pharmaceutics, Kohinoor Institute of Pharmacy, Aurangabad, Maharashtra, India
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Faustino C, Pinheiro L. Lipid Systems for the Delivery of Amphotericin B in Antifungal Therapy. Pharmaceutics 2020; 12:pharmaceutics12010029. [PMID: 31906268 PMCID: PMC7023008 DOI: 10.3390/pharmaceutics12010029] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 12/31/2022] Open
Abstract
Amphotericin B (AmB), a broad-spectrum polyene antibiotic in the clinic for more than fifty years, remains the gold standard in the treatment of life-threatening invasive fungal infections and visceral leishmaniasis. Due to its poor water solubility and membrane permeability, AmB is conventionally formulated with deoxycholate as a micellar suspension for intravenous administration, but severe infusion-related side effects and nephrotoxicity hamper its therapeutic potential. Lipid-based formulations, such as liposomal AmB, have been developed which significantly reduce the toxic side effects of the drug. However, their high cost and the need for parenteral administration limit their widespread use. Therefore, delivery systems that can retain or even enhance antimicrobial efficacy while simultaneously reducing AmB adverse events are an active area of research. Among those, lipid systems have been extensively investigated due to the high affinity of AmB for binding lipids. The development of a safe and cost-effective oral formulation able to improve drug accessibility would be a major breakthrough, and several lipid systems for the oral delivery of AmB are currently under development. This review summarizes recent advances in lipid-based systems for targeted delivery of AmB focusing on non-parenteral nanoparticulate formulations mainly investigated over the last five years and highlighting those that are currently in clinical trials.
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Affiliation(s)
| | - Lídia Pinheiro
- Correspondence: ; Tel.: +351-21-7946-400; Fax: +351-21-7946-470
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Alrbyawi H, Poudel I, Dash RP, Srinivas NR, Tiwari AK, Arnold RD, Babu RJ. Role of Ceramides in Drug Delivery. AAPS PharmSciTech 2019; 20:287. [PMID: 31410612 DOI: 10.1208/s12249-019-1497-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/31/2019] [Indexed: 12/20/2022] Open
Abstract
Ceramides belong to the sphingolipid group of lipids, which serve as both intracellular and intercellular messengers and as regulatory molecules that play essential roles in signal transduction, inflammation, angiogenesis, and metabolic disorders such as diabetes, neurodegenerative diseases, and cancer cell degeneration. Ceramides also play an important structural role in cell membranes by increasing their rigidity, creating micro-domains (rafts and caveolae), and altering membrane permeability; all these events are involved in the cell signaling. Ceramides constitute approximately half of the lipid composition in the human skin contributing to barrier function as well as epidermal signaling as they affect both proliferation and apoptosis of keratinocytes. Incorporation of ceramides in topical preparations as functional lipids appears to alter skin barrier functions. Ceramides also appear to enhance the bioavailability of drugs by acting as lipid delivery systems. They appear to regulate the ocular inflammation signaling, and external ceramides have shown relief in the anterior and posterior eye disorders. Ceramides play a structural role in liposome formulations and enhance the cellular uptake of amphiphilic drugs, such as chemotherapies. This review presents an overview of the various biological functions of ceramides, and their utility in topical, oral, ocular, and chemotherapeutic drug delivery.
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Karakucuk A, Teksin ZS, Eroglu H, Celebi N. Evaluation of improved oral bioavailability of ritonavir nanosuspension. Eur J Pharm Sci 2019; 131:153-158. [PMID: 30790704 DOI: 10.1016/j.ejps.2019.02.028] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 02/12/2019] [Accepted: 02/17/2019] [Indexed: 01/02/2023]
Abstract
The main objective of this study was to evaluate the pharmacokinetics of ritonavir (RTV) nanosuspension in rats in both fed and fasted state in comparison with coarse powder, physical mixture and commercial product (Norvir®). The point to point relation model was generated between the results of in vitro dissolution and in vivo pharmacokinetic studies. The oral RTV nanosuspension was prepared with microfluidization method. Nanosuspension was obtained with 540-550 nm of particle size, 0.1-0.4 of particle size distribution and about -20 mV of zeta potential values. According to in vivo pharmacokinetic studies in rats, Cmax and AUC0-t values in nanosuspension displayed an 8.9- and 12.5-fold increase compared to the coarse powder, and a 1.9- and 2.1-fold increase compared to the commercial product, respectively in the fed group. The point to point relation model showed that the correlation model was significant. It is concluded that nanosuspension is a promising drug delivery system to enhance oral bioavailability of ritonavir.
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Affiliation(s)
- Alptug Karakucuk
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Zeynep S Teksin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Hakan Eroglu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Nevin Celebi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey.
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Alavi M, Hamidi M. Passive and active targeting in cancer therapy by liposomes and lipid nanoparticles. Drug Metab Pers Ther 2019; 34:dmpt-2018-0032. [PMID: 30707682 DOI: 10.1515/dmpt-2018-0032] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/20/2018] [Indexed: 05/23/2023]
Abstract
Considerable development in the application of injectable drug delivery systems for cancer therapy has occurred in the last few decades. These improvements include liposomes, lipid nanoparticles (LNPs), and other nanoparticles with or without macromolecular conjugates. For example, liposomal doxorubicin modified by poly(ethylene glycol) (Doxil) was the first liposome with anti-cancer effects which was approved by the US Food and Drug Administration, whereas Abraxane (modified albumin nanoparticles loaded by paclitaxel) was recently confirmed for the treatment of breast cancer. Recently, drug delivery systems by LNPs are an emerging technology with numerous advantages over conventional liposomes and chemotherapy using free drug treatment of cancer. These properties are biocompatibility, controlled and sustained release of anti-tumor drugs, and lower toxicity. Valuable experiments on these drug delivery systems offer better treatment of multidrug-resistant cancers and lower cardiotoxicity. LNPs have been presented with high functionality in chemotherapeutic targeting of breast and prostate cancer. The basis for this targeting behavior has been shown to be both passive and active targeting. The main objective of this review was an overview of the current position of the liposome-based drug delivery systems in targeted anticancer chemotherapy.
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Affiliation(s)
- Mehran Alavi
- Department of Nanobiotechnology, Faculty of Science, Razi University, Kermanshah, Iran
| | - Mehrdad Hamidi
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan, Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
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Preparation and Characterization of Spherical Amorphous Solid Dispersion with Amphotericin B. Pharmaceutics 2018; 10:pharmaceutics10040235. [PMID: 30453493 PMCID: PMC6320868 DOI: 10.3390/pharmaceutics10040235] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/07/2018] [Accepted: 11/13/2018] [Indexed: 01/16/2023] Open
Abstract
In the present study, new polymer microspheres of amphotericin B (AmB) were prepared by a spray drying technique using cyclodextrin polymers (Poly-CD) to improve the solubility and dissolution of AmB, to prevent in vivo toxic AmB aggregations. Formulations were characterized through scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermal analysis, Raman spectroscopy, particle size, drug purity test and in vitro release studies. The analysis indicated that the chemical structure of AmB remained unchanged in the amorphous solid dispersion, but the structure was changed from crystalline to amorphous. AmB was completely release from such optimized formulations in dissolution media in 40 min. This work may contribute to a new generation of spherical amorphous solid dispersion using a cyclodextrin polymer, which has implications for the possibility of drug development for oral utilization or as powder aerosols for pulmonary administration.
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In-vitro and in-vivo antileishmanial activity of inexpensive Amphotericin B formulations: Heated Amphotericin B and Amphotericin B-loaded microemulsion. Exp Parasitol 2018; 192:85-92. [DOI: 10.1016/j.exppara.2018.07.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 06/18/2018] [Accepted: 07/30/2018] [Indexed: 12/20/2022]
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Liu M, Chen M, Yang Z. Design of amphotericin B oral formulation for antifungal therapy. Drug Deliv 2017; 24:1-9. [PMID: 28155335 PMCID: PMC8241147 DOI: 10.1080/10717544.2016.1225852] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 08/15/2016] [Accepted: 08/15/2016] [Indexed: 11/28/2022] Open
Abstract
Amphotericin B (AmB) remains the "gold standard" for systemic antifungal therapy, even though new drugs are emerging as the attractive antifungal agents. Since AmB has negligible oral absorption as a consequence of its unfavorable physicochemical characterizations, its use is restricted to parenteral administration which is accompanied by severe side effects. As greater understanding of the gastrointestinal tract has developed, the advanced drug delivery systems are emerging with the potential to overcome the barriers of AmB oral delivery. Much research has demonstrated that oral AmB formulations such as lipid formulations may have beneficial therapeutic efficacy with reduced adverse effects and suitable for clinical application. Here we reviewed the different formulation strategies to enhance oral drug efficacy, and discussed the current trends and future perspectives for AmB oral administration in the treatment of antifungal infections.
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Affiliation(s)
- Min Liu
- Urology Department, First Affiliated Hospital of Gannan Medical University, Gannan Medical University, Ganzhou, China, and
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Zhiwen Yang
- Department of Pharmacy, Songjiang Hospital Affiliated Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Radwan MA, AlQuadeib BT, Šiller L, Wright MC, Horrocks B. Oral administration of amphotericin B nanoparticles: antifungal activity, bioavailability and toxicity in rats. Drug Deliv 2017; 24:40-50. [PMID: 28155565 PMCID: PMC8247729 DOI: 10.1080/10717544.2016.1228715] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Amphotericin B (AMB) is used most commonly in severe systemic life-threatening fungal infections. There is currently an unmet need for an efficacious (AMB) formulation amenable to oral administration with better bioavailability and lower nephrotoxicity. Novel PEGylated polylactic-polyglycolic acid copolymer (PLGA-PEG) nanoparticles (NPs) formulations of AMB were therefore studied for their ability to kill Candida albicans (C. albicans). The antifungal activity of AMB formulations was assessed in C. albicans. Its bioavalability was investigated in nine groups of rats (n = 6). Toxicity was examined by an in vitro blood hemolysis assay, and in vivo nephrotoxicity after single and multiple dosing for a week by blood urea nitrogen (BUN) and plasma creatinine (PCr) measurements. The MIC of AMB loaded to PLGA-PEG NPs against C. albicans was reduced two to threefold compared with free AMB. Novel oral AMB delivery loaded to PLGA-PEG NPs was markedly systemically available compared to Fungizone® in rats. The addition of 2% of GA to the AMB formulation significantly (p < 0.05) improved the bioavailability from 1.5 to 10.5% and the relative bioavailability was > 790% that of Fungizone®. The novel AMB formulations showed minimal toxicity and better efficacy compared to Fungizone®. No nephrotoxicity in rats was detected after a week of multiple dosing of AMB NPs based on BUN and PCr, which remained at normal levels. An oral delivery system of AMB-loaded to PLGA-PEG NPs with better efficacy and minimal toxicity was formulated. The addition of glycyrrhizic acid (GA) to AMB NPs formulation resulted in a significant oral absorption and improved bioavailability in rats.
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Affiliation(s)
- Mahasen A Radwan
- a Department of Pharmaceutical Practice , College of Pharmacy, Princess Nourah bint Abdelrahman University , Riyadh , Saudi Arabia.,b Department of Pharmaceutics and Pharmaceutical Technology , College of Pharmacy, Egyptian Russian University , Bader City , Egypt
| | - Bushra T AlQuadeib
- c Department of Pharmaceutics , College of Pharmacy, King Saud University , Riyadh , Saudi Arabia
| | - Lidija Šiller
- d School of Chemical Engineering and Advanced Materials, Herschel Building, Newcastle University , Newcastle upon Tyne , UK , and
| | - Matthew C Wright
- e Institute of Cellular Medicine, Leech Building, Medical School, Newcastle University , Newcastle upon Tyne , UK
| | - Benjamin Horrocks
- d School of Chemical Engineering and Advanced Materials, Herschel Building, Newcastle University , Newcastle upon Tyne , UK , and
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Zuo T, Chen H, Xiang S, Hong J, Cao S, Weng L, Zhang L, Liu L, Li H, Zhu H, Liu Q. Cryptotanshinone-Loaded Cerasomes Formulation: In Vitro Drug Release, in Vivo Pharmacokinetics, and in Vivo Efficacy for Topical Therapy of Acne. ACS OMEGA 2016; 1:1326-1335. [PMID: 30023507 PMCID: PMC6044685 DOI: 10.1021/acsomega.6b00232] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 12/08/2016] [Indexed: 06/08/2023]
Abstract
Cerasomes (CS), evolved from liposomes, are novel drug-delivery systems that have potential medical application as carriers for drugs or active ingredients. Although many studies have been conducted on the pharmaceutical and physicochemical properties of CS, the role of CS in influencing the in vivo plasma and topical pharmacokinetics and efficacy of topical drug delivery remain unclear. In this context, we chose cryptotanshinone (CTS) as a model drug for the preparation of CTS-CS by means of the ethanol injection method to investigate their in vitro/in vivo drug-release behavior and in vivo efficacy. (1) In in vitro studies, CTS-CS gel was proven to be capable of achieving a higher permeation rate and significant accumulation in the dermis of isolated rat skin using Franz diffusion cells. (2) In in vivo studies, microdialysis experiments used to measure the plasma and topical pharmacokinetics demonstrated that the CS had a high drug concentration, short peak time, and slow elimination. Meanwhile, the plasma area under the concentration-time curve of CTS-CS gel was less than half that for the CTS gel in 12 h, which indicates that the drug bioavailability dramatically increased in the experiments. (3) In in vivo efficacy studies, we duplicated a rat acne model and performed antiacne efficacy experiments. The CTS-CS gel improved the antiacne efficacy compared to that of ordinary CTS gel. Moreover, it inhibited the expression of interleukin-1α and androgen receptors effectively. All of these results show that CTS-CS gel has significant potential for the treatment of acne induced by inflammation and excessive secretion of androgen, suggesting that CS formulations were designed as a good therapeutic option for skin disease.
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Affiliation(s)
- Ting Zuo
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
| | - Huoji Chen
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
| | - Shijian Xiang
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
| | - Junhui Hong
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
| | - Siwei Cao
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
| | - Lidong Weng
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
| | - Lu Zhang
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
| | - Li Liu
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
| | - Hui Li
- Guangzhou
Red Cross Hospital, 396 Tongfuzhong Road, Guangzhou 510220, P. R. China
| | - Hongxia Zhu
- Combining
Traditional Chinese and Western Medicine Hospital, Southern Medical University, 13 Shiliugang Road, Guangzhou 510315, P. R. China
| | - Qiang Liu
- School
of Traditional Chinese Medicine, Southern
Medical University, 1023
Shatainan Road, Guangzhou 510515, P. R. China
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Zhao X, Luo G, Bai C, Peng H, Xiong H. Juglone Thermosensitive Liposomes: Preparation, Characterization, in vitro Release and Hyperthermia Cell Evaluation. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2016. [DOI: 10.1515/ijfe-2015-0285] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this research, thermosensitive liposomes (t-L) containing juglone were prepared with 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and cholesterol by aether injection method. Morphological characteristics, encapsulation efficiency (EE), particle size, zeta potential, in vitro release, and cell viability of t-L were investigated and compared with those of conventional liposomes (c-L). Results indicated that t-L are multilamellar vesicles with lower negative charge, larger particle diameter, and higher EE than c-L. Moreover, in vitro juglone release from t-L was temperature dependent. Up to 60 % of the loaded juglone was released from t-L in 20 min when environmental temperature was increased from 37 °C to 42 °C; by contrast, >60 % of the drug remained inside for 24 h at 37 °C. Furthermore, MTT assay results revealed that t-L significantly increased the inhibitory effect on HepG2 cell growth and proliferation when these cells were exposed to hyperthermia; therefore, t-L could be applied for targeted therapy.
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Liu Y, Gao D, Zhang X, Liu Z, Dai K, Ji B, Wang Q, Luo L. Antitumor drug effect of betulinic acid mediated by polyethylene glycol modified liposomes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 64:124-132. [DOI: 10.1016/j.msec.2016.03.080] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/02/2016] [Accepted: 03/22/2016] [Indexed: 11/30/2022]
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