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Barros RM, de Oliveira MS, Costa KMN, Sato MR, Santos KLM, de L Damasceno BPG, Cuberes T, Oshiro-Junior JA. Physicochemical Characterization of Bioactive Compounds in Nanocarriers. Curr Pharm Des 2021; 26:4163-4173. [PMID: 32156229 DOI: 10.2174/1381612826666200310144533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 02/28/2020] [Indexed: 02/06/2023]
Abstract
The encapsulation of bioactive compounds is an emerging technique for finding new medicines since it provides protection against ambient degradation factors before reaching the target site. Nanotechnology provides new methods for encapsulating bioactive compounds and for drug carrier development. Nanocarriers satisfactorily impact the absorption, distribution, metabolism, and excretion rate when compared to conventional carriers. The nanocarrier material needs to be compatible and bind to the drug and be bio-resorbable. In this context, the physicochemical characterization of encapsulated bioactive compounds is fundamental to guarantee the quality, reproducibility, and safety of the final pharmaceutical product. In this review, we present the physicochemical techniques most used today by researchers to characterize bioactive compounds in nanocarriers and the main information provided by each technique, such as morphology, size, degree of crystallinity, long-term stability, the efficacy of drug encapsulation, and the amount released as a function of time.
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Affiliation(s)
- Rafaella M Barros
- Programa de Pos-Graduacao em Ciencias Farmaceuticas, Universidade Estadual da Paraiba, Av. das Baraunas, 351, Campina Grande, PB, 58109-753, Brazil
| | - Maísa S de Oliveira
- Programa de Pos-Graduacao em Ciencias Farmaceuticas, Universidade Estadual da Paraiba, Av. das Baraunas, 351, Campina Grande, PB, 58109-753, Brazil
| | - Kammila M N Costa
- Programa de Pos-Graduacao em Ciencias Farmaceuticas, Universidade Estadual da Paraiba, Av. das Baraunas, 351, Campina Grande, PB, 58109-753, Brazil
| | - Mariana R Sato
- Faculdade de Ciencias Farmaceuticas, Universidade Estadual Paulista (UNESP), Araraquara-Jau, Km 1, Araraquara, Sao Paulo, Brazil
| | - Karen L M Santos
- Programa de Pos-Graduacao em Ciencias Farmaceuticas, Universidade Estadual da Paraiba, Av. das Baraunas, 351, Campina Grande, PB, 58109-753, Brazil
| | - Bolívar P G de L Damasceno
- Programa de Pos-Graduacao em Ciencias Farmaceuticas, Universidade Estadual da Paraiba, Av. das Baraunas, 351, Campina Grande, PB, 58109-753, Brazil
| | - Teresa Cuberes
- Laboratorio de Nanotecnologia, Universidad de Castilla-La Mancha (UCLM), Plaza Manuel Meca 1, 13400 Almaden, Spain
| | - Joáo A Oshiro-Junior
- Programa de Pos-Graduacao em Ciencias Farmaceuticas, Universidade Estadual da Paraiba, Av. das Baraunas, 351, Campina Grande, PB, 58109-753, Brazil
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Oshiro-Júnior JA, Rodero C, Hanck-Silva G, Sato MR, Alves RC, Eloy JO, Chorilli M. Stimuli-responsive Drug Delivery Nanocarriers in the Treatment of Breast Cancer. Curr Med Chem 2020; 27:2494-2513. [PMID: 30306849 DOI: 10.2174/0929867325666181009120610] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/16/2018] [Accepted: 09/14/2018] [Indexed: 01/08/2023]
Abstract
Stimuli-responsive drug-delivery nanocarriers (DDNs) have been increasingly reported in the literature as an alternative for breast cancer therapy. Stimuli-responsive DDNs are developed with materials that present a drastic change in response to intrinsic/chemical stimuli (pH, redox and enzyme) and extrinsic/physical stimuli (ultrasound, Near-infrared (NIR) light, magnetic field and electric current). In addition, they can be developed using different strategies, such as functionalization with signaling molecules, leading to several advantages, such as (a) improved pharmaceutical properties of liposoluble drugs, (b) selectivity with the tumor tissue decreasing systemic toxic effects, (c) controlled release upon different stimuli, which are all fundamental to improving the therapeutic effectiveness of breast cancer treatment. Therefore, this review summarizes the use of stimuli-responsive DDNs in the treatment of breast cancer. We have divided the discussions into intrinsic and extrinsic stimuli and have separately detailed them regarding their definitions and applications. Finally, we aim to address the ability of these stimuli-responsive DDNs to control the drug release in vitro and the influence on breast cancer therapy, evaluated in vivo in breast cancer models.
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Affiliation(s)
- João A Oshiro-Júnior
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ. Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil.,Graduation Program in Pharmaceutical Sciences, State University of Paraíba, Campina Grande, PB, Brazil
| | - Camila Rodero
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ. Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Gilmar Hanck-Silva
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ. Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Mariana R Sato
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ. Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Renata Carolina Alves
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ. Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Josimar O Eloy
- College of Pharmacy, Dentistry and Nursing, Department of Pharmacy, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ. Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
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Sato MR, Oshiro-Junior JA, Souza PC, Campos DL, Pereira-Da-Silva MA, Pavan FR, Da Silva PB, Chorilli M. Copper(II) complex-loaded castor oil-based nanostructured lipid carriers used against Mycobacterium tuberculosis : Development, characterisation, in vitro and in vivo biological assays. Pharmazie 2019; 74:715-720. [PMID: 31907109 DOI: 10.1691/ph.2019.9110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
A copper(II) complex-loaded castor oil-based nanostructured lipid carrier was evaluated to enhance the poor water solubility of antimicrobial compounds, improving their biological properties and antimicrobial activity against Mycobacterium tuberculosis. Nanostructured lipid carriers were composed of the castor oil, polyoxyethylene 40 stearate and caprylic/capric triglyceride, poloxamer 407, cetyltrimethylammonium bromide and three different copper(II) complexes. The systems were ultrasonicated at an amplitude of 8% for 20 min and an ice bath was used throughout the procedure. The blank nanostructured lipid carrier (F5) and nanostructured lipid carriers loaded with copper(II) complex 1, 2 and 3 (F5.1, F5.2 and F5.3, respectively) for 45 days presented values of mean diameter, poly dispersity index and zeta potential ranging from 186 to 199 nm, 0.14 to 0.2 and 24 to 30 mV, respectively. Atomic force microscopy indicated that the nanostructured lipid carriers were distributed at the nanoscale, corroborating the mean diameter data. Differential scanning calorimetry determined the melting points of the constituents of the nanostructured lipid carriers. The antimicrobial activity of copper(II) complexloaded F5 against M. tuberculosis H37Rv showed better anti-tuberculosis activity than the free complexes. In vivo biological assays of complex-loaded F5 demonstrated reduced toxicity. Our results suggest that nanostructured lipid carriers could be a potential nanotechnological strategy to optimise tuberculosis treatment.
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Sato MR, Oshiro Junior JA, Machado RT, de Souza PC, Campos DL, Pavan FR, da Silva PB, Chorilli M. Nanostructured lipid carriers for incorporation of copper(II) complexes to be used against Mycobacterium tuberculosis. Drug Des Devel Ther 2017; 11:909-921. [PMID: 28356717 PMCID: PMC5367736 DOI: 10.2147/dddt.s127048] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis. Cessation of treatment before the recommended conclusion may lead to the emergence of multidrug-resistant strains. The aim of this study was to develop nanostructured lipid carriers (NLCs) for use in the treatment of M. tuberculosis. The NLCs comprised the following lipid phase: 2.07% polyoxyethylene 40 stearate, 2.05% caprylic/capric triglyceride, and 0.88% polyoxyl 40 hydrogenated castor oil; the following aqueous phase: 3.50% poloxamer 407 (F1-F6), and 0.50% cetyltrimethylammonium bromide (F7-F12); and incorporated the copper(II) complexes [CuCl2(INH)2]·H2O (1), [Cu(NCS)2(INH)2]·5H2O (2), and [Cu(NCO)2(INH)2]·4H2O (3) to form compounds F11.1, F11.2, and F11.3, respectively. The mean diameter of F11, F11.1, F11.2, and F11.3 ranged from 111.27±21.86 to 134.25±22.72 nm, 90.27±12.97 to 116.46±9.17 nm, 112.4±10.22 to 149.3±15.82 nm, and 78.65±6.00 to 122.00±8.70 nm, respectively. The polydispersity index values for the NLCs ranged from 0.13±0.01 to 0.30±0.09. The NLCs showed significant changes in zeta potential, except for F11.2, with F11, F11.1, F11.2, and F11.3 ranging from 18.87±4.04 to 23.25±1.13 mV, 17.03±1.77 to 21.42±1.87 mV, 20.51±1.88 to 22.60±3.44 mV, and 17.80±1.96 to 25.25±7.78 mV, respectively. Atomic force microscopy confirmed the formation of nanoscale spherical particle dispersions by the NLCs. Differential scanning calorimetry determined the melting points of the constituents of the NLCs. The in vitro activity of copper(II) complex-loaded NLCs against M. tuberculosis H37Rv showed an improvement in the anti-TB activity of 55.4, 27.1, and 41.1 times the activity for complexes 1, 2, and 3, respectively. An in vivo acute toxicity study of complex-loaded NLCs demonstrated their reduced toxicity. The results suggest that NLCs may be a powerful tool to optimize the activity of copper(II) complexes against M. tuberculosis.
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Affiliation(s)
- Mariana R Sato
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - João A Oshiro Junior
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Rachel Ta Machado
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Paula C de Souza
- Department of Biological Sciences, Faculdade de Ciências Farmacêuticas, UNESP - Univ Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Débora L Campos
- Department of Biological Sciences, Faculdade de Ciências Farmacêuticas, UNESP - Univ Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Fernando R Pavan
- Department of Biological Sciences, Faculdade de Ciências Farmacêuticas, UNESP - Univ Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Patricia B da Silva
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, Faculdade de Ciências Farmacêuticas, UNESP - Univ Estadual Paulista, Campus Araraquara, Araraquara, SP, Brazil
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