51
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Ashwaq AAS, Rasedee A, Abdul AB, Taufiq-Yap YH, Al-Qubaisi MS, Eid EEM. Characterization, drug release profile and cytotoxicity of Dentatin-Hydroxypropyl-β-Cyclodextrin complex. J INCL PHENOM MACRO 2017. [DOI: 10.1007/s10847-016-0688-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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52
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Prasad S, Achazi K, Böttcher C, Haag R, Sharma SK. Fabrication of nanostructures through self-assembly of non-ionic amphiphiles for biomedical applications. RSC Adv 2017. [DOI: 10.1039/c6ra28654b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Non-cytotoxic and non-ionic amphiphiles having supramolecular aggregation behavior were synthesized from biocompatible starting materials using a “greener” chemo-enzymatic method.
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Affiliation(s)
- Suchita Prasad
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
| | - Katharina Achazi
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Sunil K. Sharma
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
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53
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Kundu P, Das M, Tripathy K, Sahoo SK. Delivery of Dual Drug Loaded Lipid Based Nanoparticles across the Blood-Brain Barrier Impart Enhanced Neuroprotection in a Rotenone Induced Mouse Model of Parkinson's Disease. ACS Chem Neurosci 2016; 7:1658-1670. [PMID: 27642670 DOI: 10.1021/acschemneuro.6b00207] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Parkinson's disease (PD) is the most widespread form of dementia where there is an age related degeneration of dopaminergic neurons in the substantia nigra region of the brain. Accumulation of α-synuclein (αS) protein aggregate, mitochondrial dysfunction, oxidative stress, and neuronal cell death are the pathological hallmarks of PD. In this context, amalgamation of curcumin and piperine having profound cognitive properties, and antioxidant activity seems beneficial. However, the blood-brain barrier (BBB) is the major impediment for delivery of neurotherapeutics to the brain. The present study involves formulation of curcumin and piperine coloaded glyceryl monooleate (GMO) nanoparticles coated with various surfactants with a view to enhance the bioavailability of curcumin and penetration of both drugs to the brain tissue crossing the BBB and to enhance the anti-parkinsonism effect of both drugs in a single platform. In vitro results demonstrated augmented inhibition of αS protein into oligomers and fibrils, reduced rotenone induced toxicity, oxidative stress, and apoptosis, and activation of autophagic pathway by dual drug loaded NPs compared to native counterpart. Further, in vivo studies revealed that our formulated dual drug loaded NPs were able to cross BBB, rescued the rotenone induced motor coordination impairment, and restrained dopaminergic neuronal degeneration in a PD mouse model.
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Affiliation(s)
- Paromita Kundu
- Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, India
| | - Manasi Das
- Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, India
| | - Kalpalata Tripathy
- Department
of Pathology, Shri Ramachandra Bhanj Medical College, Cuttack 753007, India
| | - Sanjeeb K Sahoo
- Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, India
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54
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Antibacterial Action of Curcumin against Staphylococcus aureus: A Brief Review. J Trop Med 2016; 2016:2853045. [PMID: 27956904 PMCID: PMC5124450 DOI: 10.1155/2016/2853045] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 10/24/2016] [Indexed: 01/07/2023] Open
Abstract
Curcumin, the major constituent of Curcuma longa L. (Zingiberaceae family) or turmeric, commonly used for cooking in Asian cuisine, is known to possess a broad range of pharmacological properties at relatively nontoxic doses. Curcumin is found to be effective against Staphylococcus aureus (S. aureus). As demonstrated by in vitro experiment, curcumin exerts even more potent effects when used in combination with various other antibacterial agents. Hence, curcumin which is a natural product derived from plant is believed to have profound medicinal benefits and could be potentially developed into a naturally derived antibiotic in the future. However, there are several noteworthy challenges in the development of curcumin as a medicine. S. aureus infections, particularly those caused by the multidrug-resistant strains, have emerged as a global health issue and urgent action is needed. This review focuses on the antibacterial activities of curcumin against both methicillin-sensitive S. aureus (MSSA) and methicillin-resistant S. aureus (MRSA). We also attempt to highlight the potential challenges in the effort of developing curcumin into a therapeutic antibacterial agent.
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55
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Ashwaq AAS, Al-Qubaisi MS, Rasedee A, Abdul AB, Taufiq-Yap YH, Yeap SK. Inducing G2/M Cell Cycle Arrest and Apoptosis through Generation Reactive Oxygen Species (ROS)-Mediated Mitochondria Pathway in HT-29 Cells by Dentatin (DEN) and Dentatin Incorporated in Hydroxypropyl-β-Cyclodextrin (DEN-HPβCD). Int J Mol Sci 2016; 17:E1653. [PMID: 27763535 PMCID: PMC5085686 DOI: 10.3390/ijms17101653] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 08/31/2016] [Accepted: 09/09/2016] [Indexed: 01/22/2023] Open
Abstract
Dentatin (DEN), purified from the roots of Clausena excavata Burm f., has poor aqueous solubility that reduces its therapeutic application. The aim of this study was to assess the effects of DEN-HPβCD (hydroxypropyl-β-cyclodextrin) complex as an anticancer agent in HT29 cancer cell line and compare with a crystal DEN in dimethyl sulfoxide (DMSO). The exposure of the cancer cells to DEN or DEN-HPβCD complex leads to cell growth inhibition as determined by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. To analyze the mechanism, in which DEN or DEN-HPβCD complex causes the death in human colon HT29 cancer cells, was evaluated by the enzyme-linked immunosorbent assay (ELIZA)-based assays for caspase-3, 8, 9, and reactive oxygen species (ROS). The findings showed that an anti-proliferative effect of DEN or DEN-HPβCD complex were via cell cycle arrest at the G2/M phase and eventually induced apoptosis through both mitochondrial and extrinsic pathways. The down-regulation of poly(ADP-ribose) polymerase (PARP) which leaded to apoptosis upon treatment, was investigated by Western-blotting. Hence, complexation between DEN and HPβCD did not diminish or eliminate the effective properties of DEN as anticancer agent. Therefore, it would be possible to resolve the conventional and current issues associated with the development and commercialization of antineoplastic agents in the future.
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Affiliation(s)
- Al-Abboodi Shakir Ashwaq
- MAKNA-UPM, Cancer Research Laboratory, Institute of Bioscience, University Putra Malaysia, 43400 Selangor, Malaysia.
| | - Mothanna Sadiq Al-Qubaisi
- MAKNA-UPM, Cancer Research Laboratory, Institute of Bioscience, University Putra Malaysia, 43400 Selangor, Malaysia.
| | - Abdullah Rasedee
- Department of Veterinary Laboratory Diagnosis, Faculty of Veterinary Medicine, University Putra Malaysia, 43400 Selangor, Malaysia.
| | - Ahmad Bustamam Abdul
- MAKNA-UPM, Cancer Research Laboratory, Institute of Bioscience, University Putra Malaysia, 43400 Selangor, Malaysia.
- Department of Biomedical Science, Faculty of Medicine & Health Science, University Putra Malaysia, 43400 Selangor, Malaysia.
| | - Yun Hin Taufiq-Yap
- Department of Chemistry, Faculty of Science, University Putra Malaysia, 43400 Selangor, Malaysia.
| | - Swee Keong Yeap
- LIVES, Institute of Bioscience, University Putra Malaysia, 43400 Selangor, Malaysia.
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Preparation of a paclitaxel-loaded cationic nanoemulsome and its biodistribution via direct intratumoral injection. Colloids Surf B Biointerfaces 2016; 142:81-88. [DOI: 10.1016/j.colsurfb.2016.02.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 02/21/2016] [Accepted: 02/22/2016] [Indexed: 12/18/2022]
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57
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Darne PA, Mehta MR, Agawane SB, Prabhune AA. Bioavailability studies of curcumin–sophorolipid nano-conjugates in the aqueous phase: role in the synthesis of uniform gold nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra13469f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The major limiting factors for curcumin to be accepted as a modern drug, despite its widespread applications, are its low aqueous solubility, low retention time and poor bioavailability.
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Affiliation(s)
- Priti A. Darne
- Biochemical Sciences Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Mihir R. Mehta
- Biochemical Sciences Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Sachin B. Agawane
- Biochemical Sciences Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Asmita A. Prabhune
- Biochemical Sciences Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
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58
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Kumari P, Swami MO, Nadipalli SK, Myneni S, Ghosh B, Biswas S. Curcumin Delivery by Poly(Lactide)-Based Co-Polymeric Micelles: An In Vitro Anticancer Study. Pharm Res 2015; 33:826-41. [DOI: 10.1007/s11095-015-1830-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 11/13/2015] [Indexed: 10/22/2022]
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59
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Ucisik MH, Sleytr UB, Schuster B. Emulsomes meet S-layer proteins: an emerging targeted drug delivery system. Curr Pharm Biotechnol 2015; 16:392-405. [PMID: 25697368 PMCID: PMC4460288 DOI: 10.2174/138920101604150218112656] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 09/17/2014] [Accepted: 12/12/2014] [Indexed: 11/22/2022]
Abstract
Here, the use of emulsomes as a drug delivery system is reviewed and compared with other similar lipidic nanoformulations. In particular, we look at surface modification of emulsomes using S-layer proteins, which are self-assembling proteins that cover the surface of many prokaryotic organisms. It has been shown that covering emulsomes with a crystalline S-layer lattice can protect cells from oxidative stress and membrane damage. In the future, the capability to recrystallize S-layer fusion proteins on lipidic nanoformulations may allow the presentation of binding functions or homing protein domains to achieve highly specific targeted delivery of drug-loaded emulsomes. Besides the discussion on several designs and advantages of composite emulsomes, the success of emulsomes for the delivery of drugs to fight against viral and fungal infections, dermal therapy, cancer, and autoimmunity is summarized. Further research might lead to smart, biocompatible emulsomes, which are able to protect and reduce the side effects caused by the drug, but at the same time are equipped with specific targeting molecules to find the desired site of action.
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Affiliation(s)
| | | | - Bernhard Schuster
- Department of Biomedical Engineering, School of Engineering and Natural Sciences, Istanbul Medipol University, Ekinciler Cad. No.19, 34810 Beykoz, Istanbul, Turkey.
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60
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Shamsi S, Chen Y, Lim LY. Characterization and biological properties of NanoCUR formulation and its effect on major human cytochrome P450 enzymes. Int J Pharm 2015; 495:194-203. [DOI: 10.1016/j.ijpharm.2015.08.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 08/12/2015] [Accepted: 08/21/2015] [Indexed: 02/06/2023]
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61
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Alphandéry E, Grand-Dewyse P, Lefèvre R, Mandawala C, Durand-Dubief M. Cancer therapy using nanoformulated substances: scientific, regulatory and financial aspects. Expert Rev Anticancer Ther 2015; 15:1233-55. [DOI: 10.1586/14737140.2015.1086647] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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62
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Zhou X, Chen Z. Preparation and performance evaluation of emulsomes as a drug delivery system for silybin. Arch Pharm Res 2015; 38:2193-200. [PMID: 26152876 DOI: 10.1007/s12272-015-0630-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Accepted: 07/02/2015] [Indexed: 12/17/2022]
Abstract
We developed silybin (SIL) emulsomes and evaluated their physicochemical properties and the in vivo pharmacokinetics of SIL delivered by emulsomes in rats. SIL emulsomes were prepared using the thin film dispersion method. SIL emulsomes were evaluated for their entrapment efficiency, particle size, zeta potential, morphology, in vitro release, and in vivo drug delivery in rats. The entrapment efficiency was above 80 %. The average particle size and zeta potential were 364.1 ± 20 nm and -34 ± 8 mV, respectively. Morphological analysis revealed that the SIL emulsomes were spherical in shape. Compared to an SIL solution, emulsomes produced sustained release of SIL for up to 48 h after an initial burst release in vitro. The pharmacokinetics of SIL emulsomes in rats were evaluated after intravenous injection, and the results were compared with those obtained for the control SIL solution. Following SIL delivery by emulsomes, the area under the curve was 2.2-fold higher and the mean residence time was 2.5-fold higher than the corresponding values recorded using SIL solution. Hence, emulsomes might represent a promising system for improving the bioavailability of lipophilic drugs. Moreover, emulsomes produce sustained drug release, which is advantageous in the clinical setting.
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Affiliation(s)
- Xiaodan Zhou
- Department of Pharmacy, Gansu Provincial Hospital, 204 Donggang West Road, Lanzhou, 730000, China.
| | - Zhipeng Chen
- Department of Pharmacy, Nanjing University of Traditional Chinese Medicine, Nanjing, 210046, China.
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63
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Tran TTD, Tran KA, Tran PHL. Modulation of particle size and molecular interactions by sonoprecipitation method for enhancing dissolution rate of poorly water-soluble drug. ULTRASONICS SONOCHEMISTRY 2015; 24:256-263. [PMID: 25500098 DOI: 10.1016/j.ultsonch.2014.11.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 11/29/2014] [Accepted: 11/29/2014] [Indexed: 06/04/2023]
Abstract
Aim of present work was to originally elucidate the roles of ultrasonication method for modulating the size and molecular interactions in controlling release of poorly water-soluble drug. Curcumin was chosen as a model drug. Three types of polymers were investigated as carriers for preparation of polymeric nanoparticles under various ultrasonication conditions and polymer-drug ratios. Changes in drug crystallinity, particle size, and molecular interactions which would be factors enhancing drug dissolution rate were evaluated. Amorphous form of curcumin, size reduction of nanoparticles and interaction between drug and polymer in formulations were attributed to improved drug dissolution rate. Particle size was strongly affected by polymer type, polymer-drug ratio and ultrasonication conditions. Interestingly, control of those factors caused differences in molecular interactions of the hydroxyl groups and then, highly affected particle size of the nanoparticles. It was obvious that there was a reciprocal influence between the drug-polymer interactions and particle size of the nanoparticles. This relation could be modulated by polymers and ultrasonication processes for enhancing drug dissolution rate.
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Affiliation(s)
- Thao Truong-Dinh Tran
- Pharmaceutical Engineering Laboratory, Biomedical Engineering Department, International University, Vietnam National University - Ho Chi Minh City, Viet Nam.
| | - Kiet Anh Tran
- Pharmaceutical Engineering Laboratory, Biomedical Engineering Department, International University, Vietnam National University - Ho Chi Minh City, Viet Nam
| | - Phuong Ha-Lien Tran
- Pharmaceutical Engineering Laboratory, Biomedical Engineering Department, International University, Vietnam National University - Ho Chi Minh City, Viet Nam.
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64
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Ucisik MH, Küpcü S, Breitwieser A, Gelbmann N, Schuster B, Sleytr UB. S-layer fusion protein as a tool functionalizing emulsomes and CurcuEmulsomes for antibody binding and targeting. Colloids Surf B Biointerfaces 2015; 128:132-139. [PMID: 25734967 PMCID: PMC4406452 DOI: 10.1016/j.colsurfb.2015.01.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 01/28/2015] [Accepted: 01/29/2015] [Indexed: 11/13/2022]
Abstract
Selective targeting of tumor cells by nanoparticle-based drug delivery systems is highly desirable because it maximizes the drug concentration at the desired target while simultaneously protecting the surrounding healthy tissues. Here, we show a design for smart nanocarriers based on a biomimetic approach that utilizes the building principle of virus envelope structures. Emulsomes and CurcuEmulsomes comprising a tripalmitin solid core surrounded by phospholipid layers are modified by S-layer proteins that self-assemble into a two-dimensional array to form a surface layer. One significant advantage of this nanoformulation is that it increases the solubility of the lipophilic anti-cancer agent curcumin in the CurcuEmulsomes by a factor of 2700. In order to make the emulsomes specific for IgG, the S-layer protein is fused with two protein G domains. This S-layer fusion protein preserves its recrystallization characteristics, forming an ordered surface layer (square lattice with 13 nm unit-by-unit distance). The GG domains are presented in a predicted orientation and exhibit a selective binding affinity for IgG.
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Affiliation(s)
- Mehmet H Ucisik
- Institute for Synthetic Bioarchitectures, Department of Nanobiotechnology, University of Natural Resources and Life Sciences (BOKU) Vienna, Muthgasse 11, 1190 Vienna, Austria; Department of Biomedical Engineering, School of Engineering and Natural Sciences, Istanbul Medipol University, Ekinciler Cad. No. 19 Kavacık Kavşağı, Beykoz 34810, Istanbul, Turkey.
| | - Seta Küpcü
- Institute for Synthetic Bioarchitectures, Department of Nanobiotechnology, University of Natural Resources and Life Sciences (BOKU) Vienna, Muthgasse 11, 1190 Vienna, Austria
| | - Andreas Breitwieser
- Institute for Biophysics, Department of Nanobiotechnology, University of Natural Resources and Life Sciences (BOKU) Vienna, Muthgasse 11, 1190 Vienna, Austria
| | | | - Bernhard Schuster
- Institute for Synthetic Bioarchitectures, Department of Nanobiotechnology, University of Natural Resources and Life Sciences (BOKU) Vienna, Muthgasse 11, 1190 Vienna, Austria
| | - Uwe B Sleytr
- Institute for Biophysics, Department of Nanobiotechnology, University of Natural Resources and Life Sciences (BOKU) Vienna, Muthgasse 11, 1190 Vienna, Austria
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65
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Zeighamian V, Darabi M, Akbarzadeh A, Rahmati-Yamchi M, Zarghami N, Badrzadeh F, Salehi R, Mirakabad FST, Taheri-Anganeh M. PNIPAAm-MAA nanoparticles as delivery vehicles for curcumin against MCF-7 breast cancer cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:735-42. [PMID: 25819738 DOI: 10.3109/21691401.2014.982803] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Breast cancer is the most frequently occurring cancer among women throughout the world. Natural compounds such as curcumin hold promise to treat a variety of cancers including breast cancer. However, curcumin's therapeutic application is limited, due to its rapid degradation and poor aqueous solubility. On the other hand, previous studies have stated that drug delivery using nanoparticles might improve the therapeutic response to anticancer drugs. Poly(N-isopropylacrylamide-co-methacrylic acid) (PNIPAAm-MAA) is one of the hydrogel copolymers utilized in the drug delivery system for cancer therapy. The aim of this study was to examine the cytotoxic potential of curcumin encapsulated within the NIPAAm-MAA nanoparticle, on the MCF-7 breast cancer cell line. In this work, polymeric nanoparticles were synthesized through the free radical mechanism, and curcumin was encapsulated into NIPAAm-MAA nanoparticles. Then, the cytotoxic effect of curcumin-loaded NIPAAm-MAA on the MCF-7 breast cancer cell line was measured by MTT assays. The evaluation of the results showed that curcumin-loaded NIPAAm-MAA has more cytotoxic effect on the MCF-7 cell line and efficiently inhibited the growth of the breast cancer cell population, compared with free curcumin. In conclusion, this study indicates that curcumin-loaded NIPAAm-MAA suppresses the growth of the MCF-7 cell line. Overall, it is concluded that encapsulating curcumin into the NIPAAm-MAA copolymer could open up new avenues for breast cancer treatment.
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Affiliation(s)
- Vahideh Zeighamian
- a Department of Medical Biotechnology , Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran.,b Student Research Committee, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Masoud Darabi
- a Department of Medical Biotechnology , Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Clinical Biochemistry and Laboratory Sciences , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Abolfazl Akbarzadeh
- d Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,e Department of Medical Nanotechnology , Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mohammad Rahmati-Yamchi
- a Department of Medical Biotechnology , Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Clinical Biochemistry and Laboratory Sciences , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Nosratollah Zarghami
- a Department of Medical Biotechnology , Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Clinical Biochemistry and Laboratory Sciences , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Fariba Badrzadeh
- a Department of Medical Biotechnology , Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Roya Salehi
- d Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
| | | | - Mortaza Taheri-Anganeh
- a Department of Medical Biotechnology , Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran
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66
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Cheikh-Ali Z, Caron J, Cojean S, Bories C, Couvreur P, Loiseau PM, Desmaële D, Poupon E, Champy P. "Squalenoylcurcumin" nanoassemblies as water-dispersible drug candidates with antileishmanial activity. ChemMedChem 2014; 10:411-8. [PMID: 25523035 DOI: 10.1002/cmdc.201402449] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Indexed: 12/21/2022]
Abstract
Curcumin, a natural polyphenolic compound, showed antiparasitic potential, including trypanocidal and leishmanicidal activity, in several in vitro and in vivo models. The molecule is well tolerated in humans. However, it is insoluble in water and displays poor oral bioavailability as a result of low absorption. New derivatives of curcumin were prepared by esterification of one or two of its phenolic groups with 1,1',2-tris-norsqualenic acid. These "squalenoylcurcumins" were formulated as water-dispersible nanoassemblies of homogeneous size, and they proved to be stable. Squalenoylcurcumins were inactive against Trypanosoma brucei brucei trypomastigotes, even as nanoassemblies, in contrast with curcumin. However, against Leishmania donovani promastigotes, the activities of the squalenoylcurcumins and their nanoassemblies were enhanced relative to that of curcumin. In L. donovani axenic and intramacrophagic amastigotes, they showed activity in the range of miltefosine, with good selectivity indexes. In regard to their dispersibility in water and to the safety of curcumin, these nanoassemblies are promising candidates for preclinical study toward the treatment of visceral leishmaniasis.
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Affiliation(s)
- Zakaria Cheikh-Ali
- Laboratoire de Pharmacognosie, CNRS UMR 8076 BioCIS, LabEX LERMIT, Faculté de Pharmacie, Université Paris-Sud, 92296 Châtenay-Malabry (France)
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67
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Sleytr UB, Schuster B, Egelseer E, Pum D. S-layers: principles and applications. FEMS Microbiol Rev 2014; 38:823-64. [PMID: 24483139 PMCID: PMC4232325 DOI: 10.1111/1574-6976.12063] [Citation(s) in RCA: 232] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 01/10/2014] [Accepted: 01/13/2014] [Indexed: 01/12/2023] Open
Abstract
Monomolecular arrays of protein or glycoprotein subunits forming surface layers (S-layers) are one of the most commonly observed prokaryotic cell envelope components. S-layers are generally the most abundantly expressed proteins, have been observed in species of nearly every taxonomical group of walled bacteria, and represent an almost universal feature of archaeal envelopes. The isoporous lattices completely covering the cell surface provide organisms with various selection advantages including functioning as protective coats, molecular sieves and ion traps, as structures involved in surface recognition and cell adhesion, and as antifouling layers. S-layers are also identified to contribute to virulence when present as a structural component of pathogens. In Archaea, most of which possess S-layers as exclusive wall component, they are involved in determining cell shape and cell division. Studies on structure, chemistry, genetics, assembly, function, and evolutionary relationship of S-layers revealed considerable application potential in (nano)biotechnology, biomimetics, biomedicine, and synthetic biology.
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Affiliation(s)
- Uwe B. Sleytr
- Institute of BiophysicsDepartment of NanobiotechnologyUniversity of Natural Resources and Life SciencesViennaAustria
| | - Bernhard Schuster
- Institute of Synthetic BiologyDepartment of NanobiotechnologyUniversity of Natural Resources and Life SciencesViennaAustria
| | - Eva‐Maria Egelseer
- Institute of BiophysicsDepartment of NanobiotechnologyUniversity of Natural Resources and Life SciencesViennaAustria
| | - Dietmar Pum
- Institute of BiophysicsDepartment of NanobiotechnologyUniversity of Natural Resources and Life SciencesViennaAustria
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68
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Pillai JJ, Thulasidasan AKT, Anto RJ, Chithralekha DN, Narayanan A, Kumar GSV. Folic acid conjugated cross-linked acrylic polymer (FA-CLAP) hydrogel for site specific delivery of hydrophobic drugs to cancer cells. J Nanobiotechnology 2014; 12:25. [PMID: 25026938 PMCID: PMC4107481 DOI: 10.1186/1477-3155-12-25] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 07/04/2014] [Indexed: 12/27/2022] Open
Abstract
Background The hydrogel based system is found to be rarely reported for the delivery of hydrophobic drug due to the incompatibility of hydrophilicity of the polymer network and the hydrophobicity of drug. This problem can be solved by preparing semi-interpenetrating network of cross-linked polymer for tuning the hydrophilicity so as to entrap the hydrophobic drugs. The current study is to develop a folic acid conjugated cross-linked pH sensitive, biocompatible polymeric hydrogel to achieve a site specific drug delivery. For that, we have synthesized a folic acid conjugated PEG cross-linked acrylic polymer (FA-CLAP) hydrogel and investigated its loading and release of curcumin. The formed polymer hydrogel was then conjugated with folic acid for the site specific delivery of curcumin to cancer cells and then further characterized and conducted the cell uptake and cytotoxicity studies on human cervical cancer cell lines (HeLa). Results In this study, we synthesized folic acid conjugated cross-linked acrylic hydrogel for the delivery of hydrophobic drugs to the cancer site. Poly (ethyleneglycol) (PEG) diacrylate cross-linked acrylic polymer (PAA) was prepared via inverse emulsion polymerization technique and later conjugated it with folic acid (FA-CLAP). Hydrophobic drug curcumin is entrapped into it and investigated the entrapment efficiency. Characterization of synthesized hydogel was done by using Fourier Transform-Infrared spectroscopy (FT-IR), Transmission Electron Microscopy (TEM), Differential Scanning Calorimetry (DSC). Polymerization and folate conjugation was confirmed by FT-IR spectroscopy. The release kinetics of drug from the entrapped form was studied which showed initial burst release followed by sustained release due to swelling and increased cross-linking. In vitro cytotoxicity and cell uptake studies were conducted in human cervical cancer (HeLa) cell lines. Conclusions Results showed that curcumin entrapped folate conjugated cross-linked acrylic polymer (FA-CLAP) hydrogel showed higher cellular uptake than the non folate conjugated form. So this can be suggested as a better delivery system for site specific release of hydrophobic cancer drugs.
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Schuster B, Sleytr UB. Biomimetic interfaces based on S-layer proteins, lipid membranes and functional biomolecules. J R Soc Interface 2014; 11:20140232. [PMID: 24812051 PMCID: PMC4032536 DOI: 10.1098/rsif.2014.0232] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 04/15/2014] [Indexed: 12/20/2022] Open
Abstract
Designing and utilization of biomimetic membrane systems generated by bottom-up processes is a rapidly growing scientific and engineering field. Elucidation of the supramolecular construction principle of archaeal cell envelopes composed of S-layer stabilized lipid membranes led to new strategies for generating highly stable functional lipid membranes at meso- and macroscopic scale. In this review, we provide a state-of-the-art survey of how S-layer proteins, lipids and polymers may be used as basic building blocks for the assembly of S-layer-supported lipid membranes. These biomimetic membrane systems are distinguished by a nanopatterned fluidity, enhanced stability and longevity and, thus, provide a dedicated reconstitution matrix for membrane-active peptides and transmembrane proteins. Exciting areas in the (lab-on-a-) biochip technology are combining composite S-layer membrane systems involving specific membrane functions with the silicon world. Thus, it might become possible to create artificial noses or tongues, where many receptor proteins have to be exposed and read out simultaneously. Moreover, S-layer-coated liposomes and emulsomes copying virus envelopes constitute promising nanoformulations for the production of novel targeting, delivery, encapsulation and imaging systems.
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Affiliation(s)
- Bernhard Schuster
- Department of NanoBiotechnology, University of Natural Resources and Life Sciences, Institute for Synthetic Bioarchitectures, Muthgasse 11, 1190 Vienna, Austria
| | - Uwe B. Sleytr
- Department of NanoBiotechnology, University of Natural Resources and Life Sciences, Institute for Biophysics, Muthgasse 11, 1190 Vienna, Austria
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