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Zhang P, Wu G, Zhang D, Lai WF. Mechanisms and strategies to enhance penetration during intravesical drug therapy for bladder cancer. J Control Release 2023; 354:69-79. [PMID: 36603810 DOI: 10.1016/j.jconrel.2023.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 01/05/2023]
Abstract
Bladder cancer (BCa) is one of the most prevalent cancers worldwide. The effectiveness of intravesical therapy for bladder cancer, however, is limited due to the short dwell time and the presence of permeation barriers. Considering the histopathological features of BCa, the permeation barriers for drugs to transport across consist of a mucus layer and a nether tumor physiological barrier. Mucoadhesive delivery systems or mucus-penetrating delivery systems are developed to enhance their retention in or penetration across the mucus layer, but delivery systems that are capable of mucoadhesion-to-mucopenetration transition are more efficient to deliver drugs across the mucus layer. For the tumor physiological barrier, delivery systems mainly rely on four types of penetration mechanisms to cross it. This review summarizes the classical and latest approaches to intravesical drug delivery systems to penetrate BCa.
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Affiliation(s)
- Pu Zhang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China
| | - Guoqing Wu
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China
| | - Dahong Zhang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China.
| | - Wing-Fu Lai
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China; Department of Food Science and Nutrition, Hong Kong Polytechnic University, Hong Kong, China.
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2
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Ottonelli I, Caraffi R, Tosi G, Vandelli MA, Duskey JT, Ruozi B. Tunneling Nanotubes: A New Target for Nanomedicine? Int J Mol Sci 2022; 23:ijms23042237. [PMID: 35216348 PMCID: PMC8878036 DOI: 10.3390/ijms23042237] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 02/01/2023] Open
Abstract
Tunneling nanotubes (TNTs), discovered in 2004, are thin, long protrusions between cells utilized for intercellular transfer and communication. These newly discovered structures have been demonstrated to play a crucial role in homeostasis, but also in the spreading of diseases, infections, and metastases. Gaining much interest in the medical research field, TNTs have been shown to transport nanomedicines (NMeds) between cells. NMeds have been studied thanks to their advantageous features in terms of reduced toxicity of drugs, enhanced solubility, protection of the payload, prolonged release, and more interestingly, cell-targeted delivery. Nevertheless, their transfer between cells via TNTs makes their true fate unknown. If better understood, TNTs could help control NMed delivery. In fact, TNTs can represent the possibility both to improve the biodistribution of NMeds throughout a diseased tissue by increasing their formation, or to minimize their formation to block the transfer of dangerous material. To date, few studies have investigated the interaction between NMeds and TNTs. In this work, we will explain what TNTs are and how they form and then review what has been published regarding their potential use in nanomedicine research. We will highlight possible future approaches to better exploit TNT intercellular communication in the field of nanomedicine.
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Affiliation(s)
- Ilaria Ottonelli
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, 41125 Modena, Italy;
- Nanotech Lab, Te.Far.T.I., Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (R.C.); (G.T.); (M.A.V.); (B.R.)
| | - Riccardo Caraffi
- Nanotech Lab, Te.Far.T.I., Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (R.C.); (G.T.); (M.A.V.); (B.R.)
| | - Giovanni Tosi
- Nanotech Lab, Te.Far.T.I., Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (R.C.); (G.T.); (M.A.V.); (B.R.)
| | - Maria Angela Vandelli
- Nanotech Lab, Te.Far.T.I., Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (R.C.); (G.T.); (M.A.V.); (B.R.)
| | - Jason Thomas Duskey
- Nanotech Lab, Te.Far.T.I., Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (R.C.); (G.T.); (M.A.V.); (B.R.)
- Correspondence:
| | - Barbara Ruozi
- Nanotech Lab, Te.Far.T.I., Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (R.C.); (G.T.); (M.A.V.); (B.R.)
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Singh M, Schiavone N, Papucci L, Maan P, Kaur J, Singh G, Nandi U, Nosi D, Tani A, Khuller GK, Priya M, Singh R, Kaur IP. Streptomycin sulphate loaded solid lipid nanoparticles show enhanced uptake in macrophage, lower MIC in Mycobacterium and improved oral bioavailability. Eur J Pharm Biopharm 2021; 160:100-124. [PMID: 33497794 DOI: 10.1016/j.ejpb.2021.01.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 12/29/2020] [Accepted: 01/19/2021] [Indexed: 12/27/2022]
Abstract
Present study addresses the challenge of incorporating hydrophilic streptomycin sulphate (STRS; log P -6.4) with high dose (1 g/day) into a lipid matrix of SLNs. Cold high-pressure homogenization technique used for SLN preparation achieved 30% drug loading and 51.17 ± 0.95% entrapment efficiency. Polyethylene glycol 600 as a supporting-surfactant assigned small size (218.1 ± 15.46 nm) and mucus-penetrating property. It was conceived to administer STRS-SLNs orally rather than intramuscularly. STRS-SLNs remained stable on incubation for varying times in SGF or SIF. STRS-SLNs were extensively characterised for microscopic (TEM and AFM), thermal (DSC), diffraction (XRD) and spectroscopic (NMR and FTIR) properties and showed zero-order controlled release. Enhanced (60 times) intracellular uptake was observed in THP-1 and Pgp expressing LoVo and DLD-1 cell lines, using fluorescein-SLNs. Presence of SLNs in LoVo cells was also revealed by TEM studies. STRS-SLNs showed 3 times reduction in MIC against Mycobacterium tuberculosis H37RV (256182) in comparison to free STRS. It also showed better activity against both M. bovis BCG and Mycobacterium tuberculosis H37RV (272994) in comparison to free STRS. Cytotoxicity and acute toxicity studies (OECD 425 guidelines) confirmed in vitro and in vivo safety of STRS-SLNs. Single-dose oral pharmacokinetic studies in rat plasma using validated LCMS/MS technique or the microbioassay showed significant oral absorption and bioavailability (160% - 710% increase than free drug).
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Affiliation(s)
- Mandeep Singh
- University Institute of Pharmaceutical Sciences, UGC-Centre of Advanced Study, Panjab University, Chandigarh 160014, India
| | - Nicola Schiavone
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Section of Experimental Pathology and Oncology, University of Florence, Italy
| | - Laura Papucci
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Section of Experimental Pathology and Oncology, University of Florence, Italy
| | - Prathiba Maan
- Department of Biotechnology, BMS Block-1, Sector 25, Panjab University, Chandigarh 160014, India
| | - Jagdeep Kaur
- Department of Biotechnology, BMS Block-1, Sector 25, Panjab University, Chandigarh 160014, India
| | - Gurdarshan Singh
- PK-PD-Toxicology & Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Utpal Nandi
- PK-PD-Toxicology & Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Daniele Nosi
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, University of Florence, Florence, Italy
| | - Alessia Tani
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, University of Florence, Florence, Italy
| | - Gopal K Khuller
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Manisha Priya
- Tuberculosis Research Laboratory, Translational Health Science and Technology Institute, NCR Biotech Cluster, PO Box # 4, Faridabad-Gurugram Expressway, Faridabad 121003, India
| | - Ramandeep Singh
- Tuberculosis Research Laboratory, Translational Health Science and Technology Institute, NCR Biotech Cluster, PO Box # 4, Faridabad-Gurugram Expressway, Faridabad 121003, India
| | - Indu Pal Kaur
- University Institute of Pharmaceutical Sciences, UGC-Centre of Advanced Study, Panjab University, Chandigarh 160014, India.
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Intercellular Transfer of Mitochondria between Senescent Cells through Cytoskeleton-Supported Intercellular Bridges Requires mTOR and CDC42 Signalling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6697861. [PMID: 34373767 PMCID: PMC8349290 DOI: 10.1155/2021/6697861] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 05/31/2021] [Accepted: 06/19/2021] [Indexed: 12/23/2022]
Abstract
Cellular senescence is a state of irreversible cell proliferation arrest induced by various stressors including telomere attrition, DNA damage, and oncogene induction. While beneficial as an acute response to stress, the accumulation of senescent cells with increasing age is thought to contribute adversely to the development of cancer and a number of other age-related diseases, including neurodegenerative diseases for which there are currently no effective disease-modifying therapies. Non-cell-autonomous effects of senescent cells have been suggested to arise through the SASP, a wide variety of proinflammatory cytokines, chemokines, and exosomes secreted by senescent cells. Here, we report an additional means of cell communication utilised by senescent cells via large numbers of membrane-bound intercellular bridges-or tunnelling nanotubes (TNTs)-containing the cytoskeletal components actin and tubulin, which form direct physical connections between cells. We observe the presence of mitochondria in these TNTs and show organelle transfer through the TNTs to adjacent cells. While transport of individual mitochondria along single TNTs appears by time-lapse studies to be unidirectional, we show by differentially labelled co-culture experiments that organelle transfer through TNTs can occur between different cells of equivalent cell age, but that senescent cells, rather than proliferating cells, appear to be predominant mitochondrial donors. Using small molecule inhibitors, we demonstrate that senescent cell TNTs are dependent on signalling through the mTOR pathway, which we further show is mediated at least in part through the downstream actin-cytoskeleton regulatory factor CDC42. These findings have significant implications for the development of senomodifying therapies, as they highlight the need to account for local direct cell-cell contacts as well as the SASP in order to treat cancer and diseases of ageing in which senescence is a key factor.
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Gosenca Matjaž M, Škarabot M, Gašperlin M, Janković B. Lamellar liquid crystals maintain keratinocytes' membrane fluidity: An AFM qualitative and quantitative study. Int J Pharm 2019; 572:118712. [PMID: 31593808 DOI: 10.1016/j.ijpharm.2019.118712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 01/21/2023]
Abstract
Despite extensive investigations of lamellar liquid crystals for dermal application, the effects of these systems at the cellular level are still not well elucidated. The key aim of this study was to determine the elasticity and morphological features of keratinocytes after exposure to a lamellar liquid crystal system (LLCS) using atomic force microscopy (AFM) as the method of choice. Prior to AFM assessment, a cell proliferation test and light plus fluorescence imaging were applied to determine the sub-toxic concentration of LLCS. According to the AFM results, slightly altered morphology was observed in the case of fixed keratinocytes, while an intact morphology was visualized on live cells. From the quantitative study, decreased Young's moduli were determined for fixed cells (i.e., 8.6 vs. 15.2 MPa and 1.3 vs. 2.9 MPa for ethanol or PFA-fixed LLCS-treated vs. control cells, respectively) and live cells (i.e., ranging from 0.6 to 2.8 for LLCS-treated vs. 1.1-4.5 MPa for untreated cells), clearly demonstrating increased cell elasticity. This is related to improved membrane fluidity as a consequence of interactions between the acyl chains of cell membrane phosphatidylcholine and those of LLCS. What seems to be of major importance is that the study confirms the potential clinical relevance of such systems in treatment of aged skin with characteristically more rigid epithelial cells.
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Affiliation(s)
- Mirjam Gosenca Matjaž
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, Ljubljana, Slovenia
| | - Miha Škarabot
- Jožef Stefan Institute, Department of Condensed Matter Physics, Jamova cesta 39, Ljubljana, Slovenia
| | - Mirjana Gašperlin
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, Ljubljana, Slovenia
| | - Biljana Janković
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, Ljubljana, Slovenia.
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Formicola B, D'Aloia A, Dal Magro R, Stucchi S, Rigolio R, Ceriani M, Re F. Differential Exchange of Multifunctional Liposomes Between Glioblastoma Cells and Healthy Astrocytes via Tunneling Nanotubes. Front Bioeng Biotechnol 2019; 7:403. [PMID: 31921808 PMCID: PMC6920177 DOI: 10.3389/fbioe.2019.00403] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/25/2019] [Indexed: 12/21/2022] Open
Abstract
Despite advances in cancer therapies, nanomedicine approaches including the treatment of glioblastoma (GBM), the most common, aggressive brain tumor, remains inefficient. These failures are likely attributable to the complex and not yet completely known biology of this tumor, which is responsible for its strong invasiveness, high degree of metastasis, high proliferation potential, and resistance to radiation and chemotherapy. The intimate connection through which the cells communicate between them plays an important role in these biological processes. In this scenario, tunneling nanotubes (TnTs) are recently gaining importance as a key feature in tumor progression and in particular in the re-growth of GBM after surgery. In this context, we firstly identified structural differences of TnTs formed by U87-MG cells, as model of GBM cells, in comparison with those formed by normal human astrocytes (NHA), used as a model of healthy cells. Successively, we have studied the possibility to exploit U87-MG TnTs as drug-delivery channels in cancer therapy, using liposomes composed of cholesterol/sphingomyelin and surface functionalized with mApoE and chlorotoxin peptides (Mf-LIP) as nanovehicle model. The results showed that U87-MG cells formed almost exclusively thick and long protrusions, whereas NHA formed more thin and short TnTs. Considering that thick TnTs are more efficient in transport of vesicles and organelles, we showed that fluorescent-labeled Mf-LIP can be transported via TnTs between U87-MG cells and with less extent through the protrusions formed by NHA cells. Our results demonstrate that nanotubes are potentially useful as drug-delivery channels for cancer therapy, facilitating the intercellular redistribution of this drug in close and far away cells, thus reaching isolated tumor niches that are hardly targeted by simple drug diffusion in the brain parenchyma. Moreover, the differences identified in TnTs formed by GBM and NHA cells can be exploited to increase treatment precision and specificity.
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Affiliation(s)
- Beatrice Formicola
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Alessia D'Aloia
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Roberta Dal Magro
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Simone Stucchi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Roberta Rigolio
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Michela Ceriani
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Francesca Re
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
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Resnik N, Prezelj T, De Luca GMR, Manders E, Polishchuk R, Veranič P, Kreft ME. Helical organization of microtubules occurs in a minority of tunneling membrane nanotubes in normal and cancer urothelial cells. Sci Rep 2018; 8:17133. [PMID: 30459350 PMCID: PMC6244236 DOI: 10.1038/s41598-018-35370-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 11/05/2018] [Indexed: 12/22/2022] Open
Abstract
Tunneling membrane nanotubes (TnTs) are membrane protrusions connecting nearby or distant cells in vitro and in vivo. Functions of TnTs in cellular processes are various and rely on TnT structure, which also depends on cytoskeletal composition. In the present study, we focused on the organization of microtubules (MTs) and intermediate filaments (IFs) in TnTs of urothelial cells. We analysed TnTs of normal porcine urothelial cells, which morphologically and physiologically closely resemble normal human urothelial cells, and of cancer cells derived from invasive human urothelial neoplasm. Wide-field fluorescence, confocal and super-resolution microscopy techniques, together with image analyses and 3D reconstructions enlightened specific MT-IF organization in TnTs, and for the first time revealed that MTs and IFs co-occur in the majority of normal and cancer urothelial cell TnTs. Our findings show that in the initiation segment of TnTs, MTs are cross-linked with each other into filamentous network, however in the middle and the attaching segment of TnT, MTs can helically enwrap IFs, the phenomenon that has not been shown before within the TnTs. In this study, we assess MT-IF co-occurrence in TnTs and present evidence that such helical organization of MTs enwrapping IFs is only occurring in a minority of the TnTs. We also discuss the possible cell-biological and physiological reasons for helical organization of MTs in TnTs.
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Affiliation(s)
- Nataša Resnik
- University of Ljubljana, Faculty of Medicine, Institute of Cell Biology, Ljubljana, Slovenia
| | - Tim Prezelj
- University of Ljubljana, Faculty of Medicine, Institute of Cell Biology, Ljubljana, Slovenia
| | | | - Erik Manders
- University of Amsterdam, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands
| | - Roman Polishchuk
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli (NA), Italy
| | - Peter Veranič
- University of Ljubljana, Faculty of Medicine, Institute of Cell Biology, Ljubljana, Slovenia
| | - Mateja Erdani Kreft
- University of Ljubljana, Faculty of Medicine, Institute of Cell Biology, Ljubljana, Slovenia.
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Nirbhavane P, Vemuri N, Kumar N, Khuller GK. Lipid Nanocarrier-Mediated Drug Delivery System to Enhance the Oral Bioavailability of Rifabutin. AAPS PharmSciTech 2017; 18:829-837. [PMID: 27350276 DOI: 10.1208/s12249-016-0559-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 05/27/2016] [Indexed: 02/03/2023] Open
Abstract
Rifabutin (RFB) is prescribed for the treatment of tuberculosis infections as well as Mycobacterium avium complex (MAC) infection in immunocompromised individuals and HIV patients. With a view to develop a sustained release oral solid lipid nanoformulation (SLN), RFB was encapsulated in glyceryl monostearate (GMS) nanoparticles. The rifabutin solid lipid nanoparticles (RFB-SLNs), prepared by the solvent diffusion evaporation method, had a size of 345 ± 17.96 nm and PDI of 0.321 ± 0.09. The stability of RFB-SLNs was investigated in simulated gastric fluid (SGF) pH 2.0, simulated intestinal fluid (SIF) pH 6.8 and physiological buffer (PBS) pH 7.4. The gastric medium did not affect the SLNs and were found to be stable, while a sustained release was observed in SIF up to 48 h and in PBS up to 7 days. The pharmacokinetic profile of a single oral administration of RFB-SLNs in mice showed maintenance of therapeutic drug concentrations in plasma for 4 days and in the tissues (lungs, liver and spleen) for 7 days. Oral administration of free RFB showed clearance from plasma within 24 h. The relative bioavailability of RFB from SLNs was five fold higher as compared to administration with free RFB. The intent of using lipid nanocarriers is primarily to enhance the oral bioavailability of rifabutin and eventually decrease the dose and dosing frequency for successful management of MAC infection.
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Biological voyage of solid lipid nanoparticles: a proficient carrier in nanomedicine. Ther Deliv 2016; 7:691-709. [DOI: 10.4155/tde-2016-0038] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This review projects the prospects and issues faced by solid lipid nanoparticles (SLNs) in current scenarios, specially related to its clinical implementation and effectiveness. We re-examine the basic concept of biobehavior and movement of SLNs as a nanomedicine carrier. The extensive survey of the uptake and absorption mechanism from different routes, distribution pattern, targeting efficiency, effect of surface functionalization on biodistribution, elimination pathways and toxic effects have been documented. In general, the objective of this review is to boost our knowledge about the interaction of SLNs with the bioenvironment, their movement in, and effect on, a living system and future prospects.
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Marquele-Oliveira F, Torres EC, Barud HDS, Zoccal KF, Faccioli LH, Hori JI, Berretta AA. Physicochemical characterization by AFM, FT-IR and DSC and biological assays of a promising antileishmania delivery system loaded with a natural Brazilian product. J Pharm Biomed Anal 2016; 123:195-204. [PMID: 26897464 DOI: 10.1016/j.jpba.2016.01.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/16/2016] [Accepted: 01/19/2016] [Indexed: 12/31/2022]
Abstract
The control and treatment of Leishmaniasis, a neglected and infectious disease affecting approximately 12 million people worldwide, are challenging. Leishmania parasites multiply intracellularly within macrophages located in deep skin and in visceral tissues, and the currently employed treatments for this disease are subject to significant drawbacks, such as resistance and toxicity. Thus, the search for new Leishmaniasis treatments is compulsory, and Ocotea duckei Vattimo, a plant-derived product from the biodiverse Brazilian flora, may be a promising new treatment for this disease. In this regard, the aim of this work was to develop and characterize a delivery system based on solid lipid nanoparticles (SLN) that contain the liposoluble lignan fraction (LF) of Ocotea duckei Vattimo, which targets the Leishmania phagolysosome of infected macrophages. LF-loaded SLNs were obtained via the hot microemulsion method, and their physical and chemical properties were comprehensively assessed using PCS, AFM, SEM, FT-IR, DSC, HPLC, kinetic drug release studies, and biological assays. The size of the developed delivery system was 218.85±14.2 nm, its zeta potential was -30 mV and its entrapment efficiency (EE%) was high (the EEs% of YAN [yangambin] and EPI-YAN [epi-yangambin] markers were 94.21±0.40% and 94.20±0.00%, respectively). Microscopy, FT-IR and DSC assays confirmed that the delivery system was nanosized and indicated a core-shell encapsulation model, which corroborated the measured kinetics of drug release. The total in vitro release rates of YAN and EPI-YAN in buffer (with sink conditions attained) were 29.6±8.3% and 34.3±8.9%, respectively, via diffusion through the cellulose acetate membrane of the SLN over a period of 4 h. After 24 h, the release rates of both markers reached approximately 45%, suggesting a sustained pattern of release. Mathematical modeling indicated that both markers, YAN and EPI-YAN, followed matrix diffusion-based release kinetics (Higuchi's model) with an estimated diffusion coefficient (D) of 1.3.10(-6) cm(2)/s. The LF-loaded SLNs were non-toxic to murine macrophages (20-80 μg mL(-1) range) and exerted a prominent anti-leishmanial effect (20 μg mL(-1)). These data suggest this new and well-characterized lipid nanoparticle delivery system safely and effectively kills Leishmania and warrants further clinical investigation.
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Affiliation(s)
- Franciane Marquele-Oliveira
- Laboratório de Pesquisa, Desenvolvimento e Inovação, Apis Flora Indl. Coml. Ltda., Ribeirão Preto, SP, Brazil.
| | - Elina Cassia Torres
- Laboratório de Pesquisa, Desenvolvimento e Inovação, Apis Flora Indl. Coml. Ltda., Ribeirão Preto, SP, Brazil
| | - Hernane da Silva Barud
- Instituto de Química, Universidade Estadual Paulista, UNESP, Caixa Postal 355, 14800-900, Araraquara, SP, Brazil; Grupo de Química Medicinal e Medicina Regenerativa (QUIMMERA)-Centro Universitário de Araraquara/UNIARA, Araraquara, SP, Brazil
| | - Karina Furlani Zoccal
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas. Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Brazil
| | - Lúcia Helena Faccioli
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas. Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Brazil
| | - Juliana I Hori
- Departamento de Biologia Celular, Molecular e Bioagentes Patogênicos, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, FMRP/USP, 14049-900, Ribeirão Preto, SP, Brazil
| | - Andresa Aparecida Berretta
- Laboratório de Pesquisa, Desenvolvimento e Inovação, Apis Flora Indl. Coml. Ltda., Ribeirão Preto, SP, Brazil; Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, FCFRP/USP, 14049-900, Ribeirão Preto, SP, Brazil.
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11
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Radaic A, Barbosa L, Jaime C, Kapila Y, Pessine F, de Jesus M. How Lipid Cores Affect Lipid Nanoparticles as Drug and Gene Delivery Systems. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/bs.abl.2016.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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12
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Coumarin 6 as a fluorescent model drug: How to identify properties of lipid colloidal drug delivery systems via fluorescence spectroscopy? EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201300413] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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