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Banaei G, García-Rodríguez A, Tavakolpournegari A, Martín-Pérez J, Villacorta A, Marcos R, Hernández A. The release of polylactic acid nanoplastics (PLA-NPLs) from commercial teabags. Obtention, characterization, and hazard effects of true-to-life PLA-NPLs. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131899. [PMID: 37354720 DOI: 10.1016/j.jhazmat.2023.131899] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/30/2023] [Accepted: 06/18/2023] [Indexed: 06/26/2023]
Abstract
This study investigates MNPLs release from commercially available teabags and their effects on both undifferentiated monocultures of Caco-2 and HT29 and in the in vitro model of the intestinal Caco-2/HT29 barrier. Teabags were subjected to mechanical and thermodynamic forces simulating the preparation of a cup of tea. The obtained dispersions were characterized using TEM, SEM, DLS, LDV, NTA, and FTIR. Results confirmed that particles were in the nano-range, constituted by polylactic acid (PLA-NPLs), and about one million of PLA-NPLs per teabag were quantified. PLA-NPLs internalization, cytotoxicity, intracellular reactive oxygen species induction, as well as structural and functional changes in the barrier were assessed. Results show that PLA-NPLs present high uptake rates, especially in mucus-secretor cells, and bio-persisted in the tissue after 72 h of exposure. Although no significant cytotoxicity was observed after the exposure to 100 µg/mL PLA-NPLs during 48 h, a slight barrier disruption could be detected at short-time periods. The present work reveals new insights into the safety of polymer-based teabags, the behavior of true-to-life MNPLs in the human body, as well as new questions on how repeated and prolonged exposures could affect the structure and function of the human intestinal epithelium.
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Affiliation(s)
- Gooya Banaei
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Alba García-Rodríguez
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Alireza Tavakolpournegari
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Juan Martín-Pérez
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Aliro Villacorta
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain; Facultad de Recursos Naturales Renovables, Universidad Arturo Prat, Iquique, Chile
| | - Ricard Marcos
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.
| | - Alba Hernández
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.
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2
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Abpeikar Z, Safaei M, Akbar Alizadeh A, Goodarzi A, Hatam G. The novel treatments based on tissue engineering, cell therapy and nanotechnology for cutaneous leishmaniasis. Int J Pharm 2023; 633:122615. [PMID: 36657555 DOI: 10.1016/j.ijpharm.2023.122615] [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: 08/16/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023]
Abstract
Cutaneous leishmaniasis (CL) is a global public health issue. Conventional treatments have substantial costs, side effects, and parasite resistance. Due to easy application and inexpensive cost, topical treatment is the optimal approach for CL. It could be used alone or with systemic treatments. Electrospun fibers as drug release systems in treating skin lesions have various advantages such as adjustable drug release rate, maintaining appropriate humidity and temperature, gas exchange, plasticity at the lesion site, similarity with the skin extracellular matrix (ECM) and drug delivery with high efficiency. Hydrogels are valuable scaffolds in the treatment of skin lesions. The important features of hydrogels include preserving unstable drugs from degradation, absorption of wound secretions, high biocompatibility, improving the re-epithelialization of the wound and preventing the formation of scars. One of the issues in local drug delivery systems for the skin is the low permeability of drugs in the skin. Polymeric scaffolds that are designed as microneedle patches can penetrate the skin and overcome this challenge. Also, drug delivery using nanocarriers increases the effectiveness of drugs in lower and more tolerable doses and reduces the toxicity of drugs. The application of cell therapy in the treatment of parasitic and infectious diseases has been widely investigated. The complexity of leishmaniasis treatment requires identifying new treatment options like cell therapy to overcome the disease. Topics investigated in this study include drug delivery systems based on tissue engineering scaffolds, nanotechnology and cell therapy-based studies to reduce the complications of CL.
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Affiliation(s)
- Zahra Abpeikar
- Department of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Mohsen Safaei
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Akbar Alizadeh
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Science and Technology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Arash Goodarzi
- Department of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran; Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Gholamreza Hatam
- Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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3
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Chen J, Yuan Z, Tu Y, Hu W, Xie C, Ye L. Experimental and computational models to investigate intestinal drug permeability and metabolism. Xenobiotica 2023; 53:25-45. [PMID: 36779684 DOI: 10.1080/00498254.2023.2180454] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Oral administration is the preferred route for drug administration that leads to better therapy compliance. The intestine plays a key role in the absorption and metabolism of oral drugs, therefore, new intestinal models are being continuously proposed, which contribute to the study of intestinal physiology, drug screening, drug side effects, and drug-drug interactions.Advances in pharmaceutical processes have produced more drug formulations, causing challenges for intestinal models. To adapt to the rapid evolution of pharmaceuticals, more intestinal models have been created. However, because of the complexity of the intestine, few models can take all aspects of the intestine into account, and some functions must be sacrificed to investigate other areas. Therefore, investigators need to choose appropriate models according to the experimental stage and other requirements to obtain the desired results.To help researchers achieve this goal, this review summarised the advantages and disadvantages of current commonly used intestinal models and discusses possible future directions, providing a better understanding of intestinal models.
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Affiliation(s)
- Jinyuan Chen
- Institute of Scientific Research, Southern Medical University, Guangzhou, P.R. China.,TCM-Integrated Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Ziyun Yuan
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, P.R. China
| | - Yifan Tu
- Boehringer-Ingelheim, Connecticut, P.R. USA
| | - Wanyu Hu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, P.R. China
| | - Cong Xie
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Ling Ye
- TCM-Integrated Hospital, Southern Medical University, Guangzhou, P.R. China
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4
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Kharouba M, El-Kamel A, Mehanna R, Thabet E, Heikal L. Pitavastatin-loaded bilosomes for oral treatment of hepatocellular carcinoma: a repurposing approach. Drug Deliv 2022; 29:2925-2944. [PMID: 36081339 PMCID: PMC9467608 DOI: 10.1080/10717544.2022.2120925] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Albeit its established efficacy as an anti-hyperlipidemic agent, pitavastatin (PIT) has been shown to have other various therapeutic effects. One of these effects is the anti-cancer activity against hepatocellular carcinoma (HCC). This effect has been evaluated in this study for the first time via its oral delivery loaded in bilosomes both in vitro in hepatocellular carcinoma (HCC) cell line; HepG2 and in vivo in an Ehrlich ascites carcinoma (EAC) model. Moreover, the impact of surface modification of bilosomes with lactoferrin (LF) as an active targeting ligand for HCC was investigated. Bilosomes were prepared by thin-film hydration and different molar phospholipid to bile salt ratios were used to optimize the bilosomal formulation. The molar phospholipid to bile salt ratio was adjusted to 4:1 at pH 7.4. LF-coated bilosomes possessed a particle size, PDI, entrapment efficiency, and zeta potential of 112.28 nm ± 6.35, 0.229 ± 0.06, 90.56% ± 3.22, and −7.86 mV ± 1.13, respectively. LF-coated bilosomes also increased permeation of PIT when tested on Caco-2 cells by 3.1-folds (compared to uncoated ones or free PIT solution). It also improved the cytotoxicity of HepG2 spheroids 44-folds more than PIT-free solution. RT-PCR analysis showed that LF-coated PIT-loaded bilosomes caused an improvement (2-fold increase) in the apoptotic potential of PIT mediated by caspase-3. In conclusion, the optimized LF-coated PIT-loaded bilosomes were cytotoxic to HCC with improved hepatocytes permeation and cellular uptake. Thus, the proposed formula could be a promising treatment for HCC.
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Affiliation(s)
- Maged Kharouba
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Amal El-Kamel
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Radwa Mehanna
- Medical Physiology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt.,Center of Excellence for Research in Regenerative Medicine and its Applications CERRMA, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Eman Thabet
- Medical Physiology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt.,Center of Excellence for Research in Regenerative Medicine and its Applications CERRMA, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Lamia Heikal
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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5
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Khan Z, Alhalmi A, Tyagi N, Khan WU, Sheikh A, Abourehab MAS, Kohli K, Kesharwani P. Folic acid engineered sulforaphane loaded microbeads for targeting breast cancer. JOURNAL OF BIOMATERIALS SCIENCE, POLYMER EDITION 2022; 34:674-694. [PMID: 36345958 DOI: 10.1080/09205063.2022.2144692] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Non-targeted cancer therapy poses a huge risk to the cancer patients' life due to high toxicity offered by chemotherapy. Breast carcinoma is one of such deleterious disease, demanding a highly effectual treatment option which could reduce the toxicity and extend survival rate. Since, folate receptors extensively display themselves on the cancer cell surface, targeting them would help to ameliorate the progression and metastasis. Considering this, we envisaged and developed sulforaphane loaded folate engineered microbeads to target breast cancer cells over-expressing folate receptors. The surface engineered microbeads were optimized and developed using emulsion gelation technique, among which the best developed preparation demonstrated the particle size of 1302 ± 3.98 µm, % EE of 84.1 ± 3.32% and in vitro drug release of 98.1 ± 4.42%@24h. The spherical sized microbead showed controlled release with improved haem-compatibility in comparison to the bare drug. Free radical scavenging activity by ABTS assay showed strong anti-oxidant activity (IC50 20.62 µg/ml) of the targeted microbeads with profound cancer cell sup pressing effect (IC50 17.48 ± 3.5 µM) as observed in MCF-7 cells by MTT assay. Finally, in comparison to lone SFN, the targeted therapy showed enhanced uptake by the intestinal villi indicating a suitable oral targeted therapy against breast carcinoma.
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Affiliation(s)
- Zafar Khan
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi-110062
| | - Abdulsalam Alhalmi
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi-110062
| | - Neha Tyagi
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi-110062
| | - Wasi Uzzaman Khan
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi-110062
| | - Afsana Sheikh
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi-110062
| | - Mohammed A. S. Abourehab
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Minia University, Minia 61519, Egypt
| | - Kanchan Kohli
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi-110062
- Director (Research and Publication), Faculty of pharmacy, Lloyd Institute of Management and Technology, Greater Noida, India
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi-110062
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical science, Chennai, India
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6
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Lee J, Oshi MA, Kwak D, Kim H, Kim J, Hlaing SP, Saparbayeva A, Hwang S, Jung Y, Yoo JW. On-demand reconstitutable hyaluronic acid-doped azathioprine microcrystals effectively ameliorate ulcerative colitis via selective accumulation in inflamed tissues. Biomater Sci 2022; 10:6500-6509. [PMID: 36178247 DOI: 10.1039/d2bm01137a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although CD44-targeted delivery of pure drug microcrystals of azathioprine (AZA) could be a desirable approach to treat ulcerative colitis (UC), premature drug release and systemic absorption before reaching the colitis region remain a major obstacle. In this study, to overcome these limitations, we developed on-demand reconstitutable HA-doped AZA microcrystals (EFS/HA-AZAs) via incorporating hyaluronic acid (HA)-doped AZA microcrystals (HA-AZAs) into a Eudragit FS (EFS) microcomposite. Since EFS acts as a protective layer, the premature release of AZA in the simulated conditions of the stomach and small intestine was substantially reduced, while HA-AZAs were successfully reconstituted from the EFS/HA-AZAs in the colonic environment, resulting from the pH-triggered dissolution of EFS. After complete reconstitution of HA-AZAs in the colon, HA-AZAs selectively accumulated in the inflamed region via the HA-CD44 interaction. Owing to successful colitis-targeted delivery, EFS/HA-AZAs showed potent anti-inflammatory effects in a dextran sulfate sodium-induced murine colitis model within 7 days without systemic toxicity. These results suggest that EFS/HA-AZAs could be a promising drug delivery system for UC treatment.
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Affiliation(s)
- Juho Lee
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Murtada A Oshi
- College of Pharmacy, Omdurman Islamic University, PO. Box 167, Omdurman, Sudan
| | - Dongmin Kwak
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Hyunwoo Kim
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Jihyun Kim
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Shwe Phyu Hlaing
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Aruzhan Saparbayeva
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Seonghwan Hwang
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Yunjin Jung
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Jin-Wook Yoo
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
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7
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Delon L, Gibson R, Prestidge C, Thierry B. Mechanisms of uptake and transport of particulate formulations in the small intestine. J Control Release 2022; 343:584-599. [PMID: 35149142 DOI: 10.1016/j.jconrel.2022.02.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 10/19/2022]
Abstract
Micro- and nano-scale particulate formulations are widely investigated towards improving the oral bioavailability of both biologics and drugs with low solubility and/or low intestinal permeability. Particulate formulations harnessing physiological intestinal transport pathways have recently yielded remarkably high oral bioavailabilities, illustrating the need for better understanding the specific pathways underpinning particle small intestinal absorption and the relative role of intestinal cells. Mechanistic knowledge has been hampered by the well acknowledged limitations of current in vitro, in vivo and ex vivo models relevant to the human intestinal physiology and the lack of standardization in studies reporting absorption data. Here we review the relevant literature and critically discusses absorption pathways with a focus on the role of specific intestinal epithelial and immune cells. We conclude that while Microfold (M) cells are a valid target for oral vaccines, enterocytes play a greater role in the systemic bioavailability of orally administrated particulate formulations, particularly within the sub-micron size range. We also comment on less-reported mechanisms such as paracellular permeability of particles, persorption due to cell damage and uptake by migratory immune cells.
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Affiliation(s)
- Ludivine Delon
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Mawson Lakes, Adelaide, South Australia 5095, Australia; Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Rachel Gibson
- Australia School of Allied Health Science and Practice, University of Adelaide, South Australia 5005, Australia
| | - Clive Prestidge
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Benjamin Thierry
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Mawson Lakes, Adelaide, South Australia 5095, Australia.
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8
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Parodi A, Buzaeva P, Nigovora D, Baldin A, Kostyushev D, Chulanov V, Savvateeva LV, Zamyatnin AA. Nanomedicine for increasing the oral bioavailability of cancer treatments. J Nanobiotechnology 2021; 19:354. [PMID: 34717658 PMCID: PMC8557561 DOI: 10.1186/s12951-021-01100-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/21/2021] [Indexed: 12/28/2022] Open
Abstract
Abstract Oral administration is an appealing route of delivering cancer treatments. However, the gastrointestinal tract is characterized by specific and efficient physical, chemical, and biological barriers that decrease the bioavailability of medications, including chemotherapeutics. In recent decades, the fields of material science and nanomedicine have generated several delivery platforms with high potential for overcoming multiple barriers associated to oral administration. This review describes the properties of several nanodelivery systems that improve the bioavailability of orally administered therapeutics, highlighting their advantages and disadvantages in generating successful anticancer oral nanomedicines. Graphical Abstract ![]()
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Affiliation(s)
- Alessandro Parodi
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991, Moscow, Russia. .,Sirius University of Science and Technology, 1 Olympic Ave, 354340, Sochi, Russia.
| | - Polina Buzaeva
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991, Moscow, Russia
| | - Daria Nigovora
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991, Moscow, Russia
| | - Alexey Baldin
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992, Moscow, Russia
| | - Dmitry Kostyushev
- Sirius University of Science and Technology, 1 Olympic Ave, 354340, Sochi, Russia.,National Medical Research Center of Tuberculosis and Infectious Diseases, Ministry of Health, 127994, Moscow, Russia
| | - Vladimir Chulanov
- Sirius University of Science and Technology, 1 Olympic Ave, 354340, Sochi, Russia.,National Medical Research Center of Tuberculosis and Infectious Diseases, Ministry of Health, 127994, Moscow, Russia.,Department of Infectious Diseases, Sechenov University, 119991, Moscow, Russia
| | - Lyudmila V Savvateeva
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991, Moscow, Russia
| | - Andrey A Zamyatnin
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991, Moscow, Russia. .,Sirius University of Science and Technology, 1 Olympic Ave, 354340, Sochi, Russia. .,Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992, Moscow, Russia. .,Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7X, UK.
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9
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Mashoofnia A, Mohamadnia Z, Kompany‐Zareh M. Application of Multivariate and Spectroscopic Techniques for Investigation of the Interactions between Polyelectrolyte Layers in Layer‐by‐Layer Assembled pH‐Sensitive Nanocapsules. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100107] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Anita Mashoofnia
- Polymer Research Laboratory, Department of Chemistry Institute for Advanced Studies in Basic Science (IASBS) Gava Zang Zanjan 45137‐66731 Iran
| | - Zahra Mohamadnia
- Polymer Research Laboratory, Department of Chemistry Institute for Advanced Studies in Basic Science (IASBS) Gava Zang Zanjan 45137‐66731 Iran
| | - Mohsen Kompany‐Zareh
- Analytical Chemistry Division, Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137‐66731 Iran
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10
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Mohan LJ, McDonald L, Daly JS, Ramtoola Z. Optimising PLGA-PEG Nanoparticle Size and Distribution for Enhanced Drug Targeting to the Inflamed Intestinal Barrier. Pharmaceutics 2020; 12:pharmaceutics12111114. [PMID: 33228175 PMCID: PMC7699526 DOI: 10.3390/pharmaceutics12111114] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 11/27/2022] Open
Abstract
Oral nanomedicines are being investigated as an innovative strategy for targeted drug delivery to treat inflammatory bowel diseases. Preclinical studies have shown that nanoparticles (NPs) can preferentially penetrate inflamed intestinal tissues, allowing for targeted drug delivery. NP size is a critical factor affecting their interaction with the inflamed intestinal barrier and this remains poorly defined. In this study we aimed to assess the impact of NP particle size (PS) and polydispersity (PDI) on cell interaction and uptake in an inflamed epithelial cell model. Using 10, 55 and 100 mg/mL poly(lactic-co-glycolic acid)-polyethylene glycol (PLGA-PEG), NPs of 131, 312 and 630 nm PS, respectively, were formulated by solvent dispersion. NP recovery was optimised by differential centrifugation to yield NPs of decreased and unimodal size distribution. NP-cell interaction was assessed in healthy and inflamed caco-2 cell monolayers. Results show that NP interaction with caco-2 cells increased with increasing PS and PDI and was significantly enhanced in inflamed cells. Trypan blue quenching revealed that a significant proportion of multimodal NPs were primarily membrane bound, while monomodal NPs were internalized within cells. These results are interesting as the PS and PDI of NPs can be optimised to allow targeting of therapeutic agents to the epithelial membrane and/or intracellular targets in the inflamed intestinal epithelium.
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Affiliation(s)
- Lauren J. Mohan
- Division of Biology, Department of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, Dublin 2 D02 YN77, Ireland;
- School of Pharmacy and Biological Sciences, RCSI University of Medicine and Health Sciences, Dublin 2 D02 YN77, Ireland; (L.M.); (Z.R.)
- Correspondence:
| | - Lauren McDonald
- School of Pharmacy and Biological Sciences, RCSI University of Medicine and Health Sciences, Dublin 2 D02 YN77, Ireland; (L.M.); (Z.R.)
| | - Jacqueline S. Daly
- Division of Biology, Department of Anatomy and Regenerative Medicine, RCSI University of Medicine and Health Sciences, Dublin 2 D02 YN77, Ireland;
| | - Zebunnissa Ramtoola
- School of Pharmacy and Biological Sciences, RCSI University of Medicine and Health Sciences, Dublin 2 D02 YN77, Ireland; (L.M.); (Z.R.)
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11
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Schoultz I, Keita ÅV. The Intestinal Barrier and Current Techniques for the Assessment of Gut Permeability. Cells 2020; 9:E1909. [PMID: 32824536 PMCID: PMC7463717 DOI: 10.3390/cells9081909] [Citation(s) in RCA: 220] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/07/2020] [Accepted: 08/14/2020] [Indexed: 02/08/2023] Open
Abstract
The intestinal barrier is essential in human health and constitutes the interface between the outside and the internal milieu of the body. A functional intestinal barrier allows absorption of nutrients and fluids but simultaneously prevents harmful substances like toxins and bacteria from crossing the intestinal epithelium and reaching the body. An altered intestinal permeability, a sign of a perturbed barrier function, has during the last decade been associated with several chronic conditions, including diseases originating in the gastrointestinal tract but also diseases such as Alzheimer and Parkinson disease. This has led to an intensified interest from researchers with diverse backgrounds to perform functional studies of the intestinal barrier in different conditions. Intestinal permeability is defined as the passage of a solute through a simple membrane and can be measured by recording the passage of permeability markers over the epithelium via the paracellular or the transcellular route. The methodological tools to investigate the gut barrier function are rapidly expanding and new methodological approaches are being developed. Here we outline and discuss, in vivo, in vitro and ex vivo techniques and how these methods can be utilized for thorough investigation of the intestinal barrier.
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Affiliation(s)
- Ida Schoultz
- Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 703 62 Örebro, Sweden;
| | - Åsa V. Keita
- Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden
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12
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Verma ML, Dhanya B, Sukriti, Rani V, Thakur M, Jeslin J, Kushwaha R. Carbohydrate and protein based biopolymeric nanoparticles: Current status and biotechnological applications. Int J Biol Macromol 2020; 154:390-412. [DOI: 10.1016/j.ijbiomac.2020.03.105] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/03/2020] [Accepted: 03/12/2020] [Indexed: 12/14/2022]
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13
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Sorrentino A, Cataldo A, Curatolo R, Tagliatesta P, Mosca L, Bellucci S. Novel optimized biopolymer-based nanoparticles for nose-to-brain delivery in the treatment of depressive diseases. RSC Adv 2020; 10:28941-28949. [PMID: 35520064 PMCID: PMC9055835 DOI: 10.1039/d0ra04212a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/26/2020] [Indexed: 12/28/2022] Open
Abstract
A valid option to bypass the obstacle represented by the blood–brain barrier (BBB) in brain delivery is the use of the unconventional intranasal route of administration. The treatment of depressive diseases, resulting from the depletion of a neurotransmitter in the inter-synaptic space, such as serotonin, is indirectly treated using molecules that can permeate the BBB unlike the latter. In the present article, a set of nanovectors were produced using a mucoadhesive biopolymer, i.e. alginate (Alg). Optimizing the reaction, polymeric nanoparticles having diameter of 30–70 nm were produced, and water stable multi-walled carbon nanotubes functionalized (MWCNT-COOH)/Alg complexes were obtained. These nanovectors were loaded with serotonin, evaluating drug loading/release. By means of Raman microscopy, the cellular internalization of the (MWCNT-COOH)/Alg complex was demonstrated. A complete biocompatibility on neuronal cells was proved for the whole set of nanovectors. Finally, a method of self-administration was tested, which involves the use of a household apparatus, such as an aerosol machine, observing a fine particulate, able to deliver the nanovectors through the nose. A valid option to bypass the obstacle represented by the blood–brain barrier (BBB) in brain delivery is the use of the unconventional intranasal route of administration.![]()
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Affiliation(s)
| | - Antonino Cataldo
- INFN-Laboratori Nazionali di Frascati
- Frascati
- Italy
- Department of Engineering
- Polytechnic of Marche University of Ancona
| | - Riccardo Curatolo
- INFN-Laboratori Nazionali di Frascati
- Frascati
- Italy
- Dipartimento di Scienze e Tecnologie Chimiche
- Universita' di Roma Tor Vergata
| | - Pietro Tagliatesta
- Dipartimento di Scienze e Tecnologie Chimiche
- Universita' di Roma Tor Vergata
- Rome
- Italy
| | - Luciana Mosca
- Department of Biochemical Sciences
- Sapienza University of Rome
- Rome
- Italy
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Andreani T, Fangueiro JF, Severino P, Souza ALRD, Martins-Gomes C, Fernandes PMV, Calpena AC, Gremião MP, Souto EB, Silva AM. The Influence of Polysaccharide Coating on the Physicochemical Parameters and Cytotoxicity of Silica Nanoparticles for Hydrophilic Biomolecules Delivery. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1081. [PMID: 31357658 PMCID: PMC6723031 DOI: 10.3390/nano9081081] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/22/2019] [Accepted: 07/25/2019] [Indexed: 01/09/2023]
Abstract
The present work reports the effect of polysaccharides (chitosan and sodium alginate) on silica nanoparticles (SiNP) for hydrophilic molecules delivery taking insulin as model drug. The influence of tetraethyl orthosilicate (TEOS) and homogenization speed on SiNP properties was assessed by a 22 factorial design achieving as optimal parameters: 0.43 mol/L of TEOS and homogenization speed of 5000 rpm. SiNP mean particle size (Z-Ave) was of 256.6 nm and polydispersity index (PI) of 0.218. SiNP coated with chitosan (SiNP-CH) or sodium alginate (SiNP-SA) increased insulin association efficacy; reaching 84.6% (SiNP-SA) and 90.8% (SiNP-CH). However, coated SiNP released 50%-60% of the peptide during the first 45 min at acidic environment, while uncoated SiNP only released 30%. Similar results were obtained at pH 6.8. The low Akaike's (AIC) values indicated that drug release followed Peppas model for SiNP-SA and second order for uncoated SiNP and SiNP-CH (pH 2.0). At pH 6.8, the best fitting was Boltzmann for Ins-SiNP. However, SiNP-CH and SiNP-SA showed a first-order behavior. Cytotoxicity of nanoparticles, assessed in Caco-2 and HepG2 cells, showed that 100 to 500 µg/mL SiNP-CH and SiNP-SA slightly decreased cell viability, comparing with SiNP. In conclusion, coating SiNP with selected polysaccharides influenced the nanoparticles physicochemical properties, the insulin release, and the effect of these nanoparticles on cell viability.
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Affiliation(s)
- Tatiana Andreani
- CITAB - Centre for Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5001-801 Vila Real, Portugal.
- Department of Biology and Environment, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal.
- CIQUP - Research Center in Chemistry, Department of Chemistry and Biochemistry, Faculty of Sciences, Porto University, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal.
| | - Joana F Fangueiro
- CITAB - Centre for Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5001-801 Vila Real, Portugal
| | - Patrícia Severino
- Institute of Technology and Research, University of Tiradentes, Avenida Murilo Dantas, Farolândia, Aracaju, Brazil
| | - Ana Luiza R de Souza
- Faculty of Pharmaceutical Sciences, Universidade Estadual Paulista, UNESP, Rodovia Araraquara-Jau, Km. 01, Araraquara, São Paulo, Brazil
| | - Carlos Martins-Gomes
- CITAB - Centre for Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5001-801 Vila Real, Portugal
- Department of Biology and Environment, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
| | - Paula M V Fernandes
- CIQUP - Research Center in Chemistry, Department of Chemistry and Biochemistry, Faculty of Sciences, Porto University, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Ana C Calpena
- Biopharmacy and Pharmacokinetic Unit, Pharmacy and Pharmaceutical Technology Department, School of Pharmacy, University of Barcelona, Av. Joan XXIII, s/n, 8028 Barcelona, Spain
| | - Maria P Gremião
- Faculty of Pharmaceutical Sciences, Universidade Estadual Paulista, UNESP, Rodovia Araraquara-Jau, Km. 01, Araraquara, São Paulo, Brazil
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar 4710-057 Braga, Portugal.
| | - Amélia M Silva
- CITAB - Centre for Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5001-801 Vila Real, Portugal.
- Department of Biology and Environment, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal.
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15
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Breaking the barricade of oral chemotherapy through polysaccharide nanocarrier. Int J Biol Macromol 2019; 130:34-49. [DOI: 10.1016/j.ijbiomac.2019.02.094] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 02/10/2019] [Accepted: 02/15/2019] [Indexed: 01/19/2023]
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16
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Mohan LJ, Daly JS, Ryan BM, Ramtoola Z. The future of nanomedicine in optimising the treatment of inflammatory bowel disease. Scand J Gastroenterol 2019; 54:18-26. [PMID: 30678499 DOI: 10.1080/00365521.2018.1563805] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
There have been major advancements in the treatment of inflammatory bowel disease (IBD) over the past three decades. However despite significant progress, the best available treatments continue to demonstrate variable efficacy in patients and are associated with adverse effects. Therefore there remains an unmet clinical need for ongoing therapeutic advances for IBD. In recent years nanomedicines have emerged as promising diagnostic and therapeutic tools. Nanoparticles in particular show promise to facilitate targeted oral drug delivery in IBD. Here we discuss the pitfalls of current therapies and explore the potential for nanoparticles to improve the treatment of IBD. This review examines the range of conventional and novel therapies which have benefited from nanoparticle-mediated delivery and highlights the proven therapeutic efficacy of this approach in preclinical models. These strategies under development represent a novel and innovative treatment for IBD.
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Affiliation(s)
- Lauren J Mohan
- a Division of Biology, Department of Anatomy , Royal College of Surgeons in Ireland , Dublin , Ireland.,b School of Pharmacy, Royal College of Surgeons in Ireland , Dublin , Ireland
| | - Jacqueline S Daly
- a Division of Biology, Department of Anatomy , Royal College of Surgeons in Ireland , Dublin , Ireland
| | - Barbara M Ryan
- c Department of Gastroenterology and Clinical Medicine , Tallaght Hospital and Trinity College , Dublin , Ireland
| | - Zebunnissa Ramtoola
- b School of Pharmacy, Royal College of Surgeons in Ireland , Dublin , Ireland
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17
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Lien TF, Lan YS. Effects of nanoparticle chromium mixed with γ-polyglutamic acid on the chromium bioavailability, growth performance, serum parameters and carcass traits of pigs. ANIMAL PRODUCTION SCIENCE 2019. [DOI: 10.1071/an18441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Because chromium is a mineral that is difficult to absorb, nanotechnology was used to produce nanoparticle trivalent chromium, which has a reduced particle size and increased surface area to increase chromium bioavailability. The aim of the present study was to investigate the effect of dietary supplementation nanoparticle trivalent chromium with or without γ-polyglutamic acid (γ-PGA) on the chromium bioavailability, growth performance, serum parameters and carcass traits of pigs. In Trial 1, eight growing pigs (Landrace × Yorkshire × Duroc; LYD) with an initial average weight of 51.3 ± 2.0 kg were used in a 4 × 4 Latin square design as the control group (without chromium supplements), the chromium picolinate group (CrPic), the nanoparticle chromium picolinate group (NanoCrPic) and the nanoparticle chromium picolinate mixed with γ-polyglutamic acid (NanoCrPic–PGA) group. Chromium was added at a level of 200 μg/kg to a basal diet containing 728 µg Cr/kg DM, using different forms of chromium, so as to evaluate the chromium bioavailability. The results of Trial 1 indicated that the bioavailability of the supplemented chromium was as follows: NanoCrPic–PGA > NanoCrPic > CrPic (P < 0.05). In Trial 2, 64 LYD growing pigs (average bodyweight 74.46 ± 3.9 kg) were randomly allotted to the same four dietary treatment groups as in Trial 1 and the same levels of chromium were added to the diet. Each group contained four pens and there were four pigs in each pen. The experimental results indicated that the gain:feed ratio in the NanoCrPic–PGA group was better than that in the NanoCrPic group (P < 0.001). The serum chromium concentrations in the NanoCrPic–PGA group were higher than in the control group (P < 0.05), the serum insulin concentration in the chromium supplementation groups was lower than that in the control group (P < 0.05), and blood glucose in the NanoCrPic group was lower than that in the control group (P < 0.05). The carcass traits were not affected by chromium supplementation. In conclusion, nanoparticle trivalent chromium, either alone or together with γ-PGA, improved chromium bioavailability and feeding effectiveness.
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18
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Severino P, da Silva CF, Andrade LN, de Lima Oliveira D, Campos J, Souto EB. Alginate Nanoparticles for Drug Delivery and Targeting. Curr Pharm Des 2019; 25:1312-1334. [PMID: 31465282 DOI: 10.2174/1381612825666190425163424] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/15/2019] [Indexed: 12/31/2022]
Abstract
Nanotechnology refers to the control, manipulation, study and manufacture of structures and devices at the nanometer size range. The small size, customized surface, improved solubility and multi-functionality of nanoparticles will continue to create new biomedical applications, as nanoparticles allow to dominate stability, solubility and bioavailability, as well controlled release of drugs. The type of a nanoparticle, and its related chemical, physical and morphological properties influence its interaction with living cells, as well as determine the route of clearance and possible toxic effects. This field requires cross-disciplinary research and gives opportunities to design and develop multifunctional devices, which allow the diagnosis and treatment of devastating diseases. Over the past few decades, biodegradable polymers have been studied for the fabrication of drug delivery systems. There was extensive development of biodegradable polymeric nanoparticles for drug delivery and tissue engineering, in view of their applications in controlling the release of drugs, stabilizing labile molecules from degradation and site-specific drug targeting. The primary aim is to reduce dosing frequency and prolong the therapeutic outcomes. For this purpose, inert excipients should be selected, being biopolymers, e.g. sodium alginate, commonly used in controlled drug delivery. Nanoparticles composed of alginate (known as anionic polysaccharide widely distributed in the cell walls of brown algae which, when in contact with water, forms a viscous gum) have emerged as one of the most extensively characterized biomaterials used for drug delivery and targeting a set of administration routes. Their advantages include not only the versatile physicochemical properties, which allow chemical modifications for site-specific targeting but also their biocompatibility and biodegradation profiles, as well as mucoadhesiveness. Furthermore, mechanical strength, gelation, and cell affinity can be modulated by combining alginate nanoparticles with other polymers, surface tailoring using specific targeting moieties and by chemical or physical cross-linking. However, for every physicochemical modification in the macromolecule/ nanoparticles, a new toxicological profile may be obtained. In this paper, the different aspects related to the use of alginate nanoparticles for drug delivery and targeting have been revised, as well as how their toxicological profile will determine the therapeutic outcome of the drug delivery system.
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Affiliation(s)
- Patricia Severino
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Classius F da Silva
- Universidade Federal de Sao Paulo, Instituto de Ciências Ambientais, Quimicas e Farmaceuticas, Departamento de Engenharia Quimica, Rua Sao Nicolau, 210, Diadema - SP, CEP 09.913-030, Brazil
| | - Luciana N Andrade
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Daniele de Lima Oliveira
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Joana Campos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar 4710-057 Braga, Portugal
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19
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Matsumura N, Yamaura Y, Katagi J, Ono S, Kim S, Yamashita S, Sugano K. Evaluation of Using Dogs to Predict Fraction of Oral Dose Absorbed in Humans for Poorly Water-Soluble Drugs. J Pharm Sci 2018; 107:2489-2496. [DOI: 10.1016/j.xphs.2018.05.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/16/2018] [Accepted: 05/22/2018] [Indexed: 12/31/2022]
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Antileishmanial Activity of Amphotericin B-loaded-PLGA Nanoparticles: An Overview. MATERIALS 2018; 11:ma11071167. [PMID: 29987206 PMCID: PMC6073796 DOI: 10.3390/ma11071167] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 01/19/2023]
Abstract
In recent decades, nanotechnology has made phenomenal strides in the pharmaceutical field, favouring the improvement of the biopharmaceutical properties of many active compounds. Many liposome-based formulations containing antitumor, antioxidant and antifungal compounds are presently on the market and are used daily (for example Doxil®/Caelyx® and Ambisome®). Polymeric nanoparticles have also been used to entrap many active compounds with the aim of improving their pharmacological activity, bioavailability and plasmatic half-life while decreasing their side effects. The modulation of the structural/morphological properties of nanoparticles allows us to influence various technological parameters, such as the loading capacity and/or the release profile of the encapsulated drug(s). Amongst the biocompatible polymers, poly(D,L-lactide) (PLA), poly(D,L-glycolide) (PLG) and their co-polymers poly(lactide-co-glycolide) (PLGA) are the most frequently employed due to their approval by the FDA for human use. The aim of this review is to provide a description of the foremost recent investigations based on the encapsulation of amphotericin B in PLGA nanoparticles, in order to furnish an overview of the technological properties of novel colloidal formulations useful in the treatment of Leishmaniasis. The pharmacological efficacy of the drug after nanoencapsulation will be compared to the commercial formulations of the drug (i.e., Fungizone®, Ambisome®, Amphocil® and Abelcet®).
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Bourquin J, Milosevic A, Hauser D, Lehner R, Blank F, Petri-Fink A, Rothen-Rutishauser B. Biodistribution, Clearance, and Long-Term Fate of Clinically Relevant Nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704307. [PMID: 29389049 DOI: 10.1002/adma.201704307] [Citation(s) in RCA: 231] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/20/2017] [Indexed: 05/18/2023]
Abstract
Realization of the immense potential of nanomaterials for biomedical applications will require a thorough understanding of how they interact with cells, tissues, and organs. There is evidence that, depending on their physicochemical properties and subsequent interactions, nanomaterials are indeed taken up by cells. However, the subsequent release and/or intracellular degradation of the materials, transfer to other cells, and/or translocation across tissue barriers are still poorly understood. The involvement of these cellular clearance mechanisms strongly influences the long-term fate of used nanomaterials, especially if one also considers repeated exposure. Several nanomaterials, such as liposomes and iron oxide, gold, or silica nanoparticles, are already approved by the American Food and Drug Administration for clinical trials; however, there is still a huge gap of knowledge concerning their fate in the body. Herein, clinically relevant nanomaterials, their possible modes of exposure, as well as the biological barriers they must overcome to be effective are reviewed. Furthermore, the biodistribution and kinetics of nanomaterials and their modes of clearance are discussed, knowledge of the long-term fates of a selection of nanomaterials is summarized, and the critical points that must be considered for future research are addressed.
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Affiliation(s)
- Joël Bourquin
- Adolphe Merkle InstituteUniversity of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Ana Milosevic
- Adolphe Merkle InstituteUniversity of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Daniel Hauser
- Adolphe Merkle InstituteUniversity of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Roman Lehner
- Adolphe Merkle InstituteUniversity of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Fabian Blank
- Respiratory Medicine, Department of Biomedical Research, University of Bern, Murtenstrasse 50, 3008, Bern
| | - Alke Petri-Fink
- Adolphe Merkle InstituteUniversity of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700, Fribourg, Switzerland
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Bouwmeester H, van der Zande M, Jepson MA. Effects of food-borne nanomaterials on gastrointestinal tissues and microbiota. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2018; 10:e1481. [PMID: 28548289 PMCID: PMC5810149 DOI: 10.1002/wnan.1481] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/02/2017] [Accepted: 05/04/2017] [Indexed: 12/26/2022]
Abstract
Ingestion of engineered nanomaterials is inevitable due to their addition to food and prevalence in food packaging and domestic products such as toothpaste and sun cream. In the absence of robust dosimetry and particokinetic data, it is currently challenging to accurately assess the potential toxicity of food-borne nanomaterials. Herein, we review current understanding of gastrointestinal uptake mechanisms, consider some data on the potential for toxicity of the most commonly encountered classes of food-borne nanomaterials (including TiO2 , SiO2, ZnO, and Ag nanoparticles), and discuss the potential impact of the luminal environment on nanoparticle properties and toxicity. Much of our current understanding of gastrointestinal nanotoxicology is derived from increasingly sophisticated epithelial models that augment in vivo studies. In addition to considering the direct effects of food-borne nanomaterials on gastrointestinal tissues, including the potential role of chronic nanoparticle exposure in development of inflammatory diseases, we also discuss the potential for food-borne nanomaterials to disturb the normal balance of microbiota within the gastrointestinal tract. The latter possibility warrants close attention given the increasing awareness of the critical role of microbiota in human health and the known impact of some food-borne nanomaterials on bacterial viability. WIREs Nanomed Nanobiotechnol 2018, 10:e1481. doi: 10.1002/wnan.1481 This article is categorized under: Toxicology and Regulatory Issues in Nanomedicine > Toxicology of Nanomaterials.
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Affiliation(s)
- Hans Bouwmeester
- Division of ToxicologyWageningen University and ResearchWageningenThe Netherlands
- RIKILT ‐ Wageningen University and ResearchWageningenThe Netherlands
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Reduced cardiotoxicity and increased oral efficacy of artemether polymeric nanocapsules in Plasmodium berghei-infected mice. Parasitology 2017; 145:1075-1083. [PMID: 29223181 DOI: 10.1017/s0031182017002207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Artemether (ATM) cardiotoxicity, its short half-life and low oral bioavailability are the major limiting factors for its use to treat malaria. The purposes of this work were to study free-ATM and ATM-loaded poly-ε-caprolactone nanocapules (ATM-NC) cardiotoxicity and oral efficacy on Plasmodium berghei-infected mice. ATM-NC was obtained by interfacial polymer deposition and ATM was associated with polymeric NC oily core. For cardiotoxicity evaluation, male black C57BL6 uninfected or P. berghei-infected mice received, by oral route twice daily/4 days, vehicle (sorbitol/carboxymethylcellulose), blank-NC, free-ATM or ATM-NC at doses 40, 80 or 120 mg kg-1. Electrocardiogram (ECG) lead II signal was obtained before and after treatment. For ATM efficacy evaluation, female P. berghei-infected mice were treated the same way. ATM-NC improved antimalarial in vivo efficacy and reduced mice mortality. Free-ATM induced significantly QT and QTc intervals prolongation. ATM-NC (120 mg kg-1) given to uninfected mice reduced QT and QTc intervals prolongation 34 and 30%, respectively, compared with free-ATM. ATM-NC given to infected mice also reduced QT and QTc intervals prolongation, 28 and 27%, respectively. For the first time, the study showed a nanocarrier reducing cardiotoxicity of ATM given by oral route and it was more effective against P. berghei than free-ATM as monotherapy.
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Potential of different salt forming agents on the formation of chitosan nanoparticles as carriers for protein drug delivery systems. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2017. [DOI: 10.1007/s40005-017-0369-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Kozuka C, Shimizu-Okabe C, Takayama C, Nakano K, Morinaga H, Kinjo A, Fukuda K, Kamei A, Yasuoka A, Kondo T, Abe K, Egashira K, Masuzaki H. Marked augmentation of PLGA nanoparticle-induced metabolically beneficial impact of γ-oryzanol on fuel dyshomeostasis in genetically obese-diabetic ob/ob mice. Drug Deliv 2017; 24:558-568. [PMID: 28181829 PMCID: PMC8241037 DOI: 10.1080/10717544.2017.1279237] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/01/2017] [Accepted: 01/03/2017] [Indexed: 12/19/2022] Open
Abstract
Our previous works demonstrated that brown rice-specific bioactive substance, γ-oryzanol acts as a chaperone, attenuates exaggerated endoplasmic reticulum (ER) stress in brain hypothalamus and pancreatic islets, thereby ameliorating metabolic derangement in high fat diet (HFD)-induced obese diabetic mice. However, extremely low absorption efficiency from intestine of γ-oryzanol is a tough obstacle for the clinical application. Therefore, in this study, to overcome extremely low bioavailability of γ-oryzanol with super-high lipophilicity, we encapsulated γ-oryzanol in polymer poly (DL-lactide-co-glycolide) (PLGA) nanoparticles (Nano-Orz), and evaluated its metabolically beneficial impact in genetically obese-diabetic ob/ob mice, the best-known severest diabetic model in mice. To our surprise, Nano-Orz markedly ameliorated fuel metabolism with an unexpected magnitude (∼1000-fold lower dose) compared with regular γ-oryzanol. Furthermore, such a conspicuous impact was achievable by its administration once every 2 weeks. Besides the excellent impact on dysfunction of hypothalamus and pancreatic islets, Nano-Orz markedly decreased ER stress and inflammation in liver and adipose tissue. Collectively, nanotechnology-based developments of functional foods oriented toward γ-oryzanol shed light on the novel approach for the treatment of a variety of metabolic diseases in humans.
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Affiliation(s)
- Chisayo Kozuka
- Division of Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology (Second Department of Internal Medicine), Graduate School of Medicine and
| | - Chigusa Shimizu-Okabe
- Department of Molecular Anatomy, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Chitoshi Takayama
- Department of Molecular Anatomy, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Kaku Nakano
- Department of Cardiovascular Medicine and
- Department of Cardiovascular Research, Development, and Translational Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | | | | | | | - Asuka Kamei
- Kanagawa Academy of Science and Technology, Kanagawa, Japan, and
| | - Akihito Yasuoka
- Kanagawa Academy of Science and Technology, Kanagawa, Japan, and
| | - Takashi Kondo
- Kanagawa Academy of Science and Technology, Kanagawa, Japan, and
| | - Keiko Abe
- Kanagawa Academy of Science and Technology, Kanagawa, Japan, and
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kensuke Egashira
- Department of Cardiovascular Medicine and
- Department of Cardiovascular Research, Development, and Translational Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
- SENTAN Pharma Inc., Fukuoka, Japan
| | - Hiroaki Masuzaki
- Division of Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology (Second Department of Internal Medicine), Graduate School of Medicine and
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Wang C, Zheng Y, Sand oval MA, Valdes SA, Chen Z, Lansakara-P DS, Du M, Shi Y, Cui Z. Oral 4-( N)-stearoyl gemcitabine nanoparticles inhibit tumor growth in mouse models. Oncotarget 2017; 8:89876-89886. [PMID: 29163795 PMCID: PMC5685716 DOI: 10.18632/oncotarget.21264] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/08/2017] [Indexed: 01/14/2023] Open
Abstract
In spite of recent advances in targeted tumor therapy, systemic chemotherapy with cytotoxic agents remains a vital cancer treatment modality. Gemcitabine is a nucleoside analog commonly used in the treatment of various solid tumors, but an oral gemcitabine dosage form remain unavailable. Previously, we developed the 4-(N)-stearoyl gemcitabine solid lipid nanoparticles (GemC18-SLNs) by incorporating 4-(N)-stearoyl gemcitabine (GemC18), an amide prodrug of gemcitabine, into solid lipid nanoparticles. GemC18-SLNs, when administered intravenously, showed strong antitumor activity against various human and mouse tumors in mouse models. In the present study, we defined the plasma pharmacokinetics of gemcitabine when GemC18-SLNs were given orally to healthy mice and evaluated the antitumor activity of GemC18-SLNs when given orally in mouse models of lung cancer. In mice orally gavaged with GemC18-SLNs, plasma gemcitabine concentration followed an absorption phase and then clearance phase, with a Tmax of ~2 h. The absolute oral bioavailability of gemcitabine in the GemC18-SLNs was ~70% (based on AUC0-24 h values). In mice with pre-established tumors (i.e. mouse TC-1 or LLC lung cancer cells), oral GemC18-SLNs significantly inhibited the tumor growth and increased mouse survival time, as compared to the molar equivalent dose of gemcitabine hydrochloride or GemC18 in vegetable oil or in Tween 20. Immunohistostaining revealed that oral GemC18-SLNs also have significant antiproliferative, antiangiogenic, and proapoptotic activity in LLC tumors. Formulating a lipophilic amide prodrug of gemcitabine into solid lipid nanoparticles may represent a viable approach toward developing a safe and efficacious gemcitabine oral dosage form.
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Affiliation(s)
- Caixia Wang
- Inner Mongolia Medical University, School of Basic Sciences, Inner Mongolia Key Laboratory of Molecular Biology, Hohhot, Inner Mongolia, China
| | - Yuanqiang Zheng
- Inner Mongolia University, Research Center for Laboratory Animal Sciences, Hohhot, Inner Mongolia, China
| | - Michael A. Sand oval
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, Texas, USA
| | - Solange A. Valdes
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, Texas, USA
| | - Zhe Chen
- Inner Mongolia Medical University, School of Basic Sciences, Inner Mongolia Key Laboratory of Molecular Biology, Hohhot, Inner Mongolia, China
| | - Dharmika S. Lansakara-P
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, Texas, USA
| | - Maolin Du
- Inner Mongolia Medical University, School of Public Health, Hohhot, Inner Mongolia, China
| | - Yanchun Shi
- Inner Mongolia Medical University, School of Basic Sciences, Inner Mongolia Key Laboratory of Molecular Biology, Hohhot, Inner Mongolia, China
| | - Zhengrong Cui
- Inner Mongolia Medical University, School of Basic Sciences, Inner Mongolia Key Laboratory of Molecular Biology, Hohhot, Inner Mongolia, China
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, Texas, USA
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El-Houssiny AS, Ward AA, Mostafa DM, Abd-El-Messieh SL, Abdel-Nour KN, Darwish MM, Khalil WA. Sodium alginate nanoparticles as a new transdermal vehicle of glucosamine sulfate for treatment of osteoarthritis. EUROPEAN JOURNAL OF NANOMEDICINE 2017. [DOI: 10.1515/ejnm-2017-0008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractGlucosamine sulfate (GS) has been used orally for the treatment of osteoarthritis (OA). However, it may be susceptible to the liver first pass phenomenon, which greatly affects its bioavailability, in addition to its side effects on the gastrointestinal tract. Alginate nanoparticles (Alg NPs) were investigated as a new drug carrier for transdermal delivery of GS to improve its effectiveness and reduce side effects. GS-Alg NPs were characterized by encapsulation efficiency, NP yield, particle size and surface charge properties. The in vitro release studies of GS and the ex vivo permeability through rat skin were determined using a UV-Vis spectrophotometer. GS-Alg NPs are within the nanometer range of size. High negative surface charge values are obtained and indicate the high suspension stability of the prepared formulation. The in vitro release studies showed that GS is released from Alg NPs in a sustained and prolonged manner. The ex vivo permeability of GS through rat skin is enhanced significantly after encapsulation in the negatively charged Alg NPs. We successfully reported a highly stable nanoparticlulate system using Alg NPs that permits the encapsulation of GS for topical administration, overcoming the disadvantages of oral administration.
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Li Q, Xia D, Tao J, Shen A, He Y, Gan Y, Wang C. Self-Assembled Core-Shell-Type Lipid-Polymer Hybrid Nanoparticles: Intracellular Trafficking and Relevance for Oral Absorption. J Pharm Sci 2017; 106:3120-3130. [DOI: 10.1016/j.xphs.2017.05.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/30/2017] [Accepted: 05/16/2017] [Indexed: 01/30/2023]
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Mao SY, Lien TF. Effects of nanosized zinc oxide and γ-polyglutamic acid on eggshell quality and serum parameters of aged laying hens. Arch Anim Nutr 2017; 71:373-383. [DOI: 10.1080/1745039x.2017.1355600] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Syuan-Yian Mao
- Department of Animal Science, National Chiayi University, Chiayi, Taiwan
| | - Tu-Fa Lien
- Department of Animal Science, National Chiayi University, Chiayi, Taiwan
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Amplified CPEs enhancement of chorioamnion membrane mass transport by encapsulation in nano-sized PLGA particles. Eur J Pharm Biopharm 2017; 117:292-299. [DOI: 10.1016/j.ejpb.2017.04.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/26/2017] [Accepted: 04/28/2017] [Indexed: 01/20/2023]
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31
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Omar H, Croissant JG, Alamoudi K, Alsaiari S, Alradwan I, Majrashi MA, Anjum DH, Martins P, Laamarti R, Eppinger J, Moosa B, Almalik A, Khashab NM. Biodegradable Magnetic Silica@Iron Oxide Nanovectors with Ultra-Large Mesopores for High Protein Loading, Magnetothermal Release, and Delivery. J Control Release 2016; 259:187-194. [PMID: 27913308 DOI: 10.1016/j.jconrel.2016.11.032] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/08/2016] [Accepted: 11/27/2016] [Indexed: 10/20/2022]
Abstract
The delivery of large cargos of diameter above 15nm for biomedical applications has proved challenging since it requires biocompatible, stably-loaded, and biodegradable nanomaterials. In this study, we describe the design of biodegradable silica-iron oxide hybrid nanovectors with large mesopores for large protein delivery in cancer cells. The mesopores of the nanomaterials spanned from 20 to 60nm in diameter and post-functionalization allowed the electrostatic immobilization of large proteins (e.g. mTFP-Ferritin, ~534kDa). Half of the content of the nanovectors was based with iron oxide nanophases which allowed the rapid biodegradation of the carrier in fetal bovine serum and a magnetic responsiveness. The nanovectors released large protein cargos in aqueous solution under acidic pH or magnetic stimuli. The delivery of large proteins was then autonomously achieved in cancer cells via the silica-iron oxide nanovectors, which is thus a promising for biomedical applications.
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Affiliation(s)
- Haneen Omar
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Jonas G Croissant
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Kholod Alamoudi
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Shahad Alsaiari
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Ibrahim Alradwan
- Life sciences and Environment Research Institute, Center of Excellence in Nanomedicine (CENM), King Abdulaziz City for Science and Technology (KACST), Riyadh 11461, Saudi Arabia
| | - Majed A Majrashi
- Life sciences and Environment Research Institute, Center of Excellence in Nanomedicine (CENM), King Abdulaziz City for Science and Technology (KACST), Riyadh 11461, Saudi Arabia
| | - Dalaver H Anjum
- Imaging and Characterization Laboratory, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Patricia Martins
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Ria Laamarti
- KAUST Catalysis Center (KCC), Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST)
| | - Jorg Eppinger
- KAUST Catalysis Center (KCC), Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST)
| | - Basem Moosa
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Abdulaziz Almalik
- Life sciences and Environment Research Institute, Center of Excellence in Nanomedicine (CENM), King Abdulaziz City for Science and Technology (KACST), Riyadh 11461, Saudi Arabia.
| | - Niveen M Khashab
- Smart Hybrid Materials Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia..
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Denkbas EB, Ottenbrite RM. Perspectives on: Chitosan Drug Delivery Systems Based on their Geometries. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911506066930] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chitosan is a natural polymer that has many physicochemical (polycationic, reactive OH and NH2 groups) and biological (bioactive, biocompatible, biodegradable) properties. These unique properties make chitosan an excellent material for the development of new biomedical applications. One of the most well known biomedical chitosan applications is in drug delivery systems. Chitosans have been used in the design of many different types of drug carriers for various administration routes such as oral, bucal, nasal, transdermal, parenteral, vaginal, cervical, intrauterine and rectal. Chitosan can be engineered into different shapes and geometries such as nanoparticles, microspheres, membranes, sponges and rods. This paper is a perspective on the preparation of the chitosan drug delivery systems based on different structural geometries. In this respect, special preparation techniques are used to prepare chitosan drug carriers by altering such parameters as crosslinker concentration, chitosan molecular weight, drug/polymer ratio and processing conditions all of which affect the morphology of chitosan drug carriers and release rate of the loaded drug.
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Affiliation(s)
- Emir Baki Denkbas
- Hacettepe University, Chemistry Department, Biochemistry Division, 06800 Beytepe, Ankara, Turkey
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Thanos CG, Yip KP, Mathiowitz E. Intestinal Uptake of Polymer Microspheres in the Rabbit Studied with Confocal Microscopy. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911504045275] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study characterizes the ability of several polymer formulations to penetrate the absorptive epithelium and lymphoid-associated tissue of the gastrointestinal tract. Using phase inversion nano encapsulation and solvent diffusion, formulations with variable size ranges consisting of either poly(fumaric-co-sebacic)anhydride, poly(lactide-co-glycolide), polystyrene, or polycaprolactone were fabricated and administered to an isolated loop in the small intestine of rabbits. Particles were loaded with a fluorescent dye for detection. Following a period of incubation, animals were sacrificed and the tissue was explanted and processed for histology. Confocal laser scanning microscopy (CLSM) was used to track the microspheres and two separate emission detectors were used to isolate the dye from background. Particles that possess bioadhesiveness in the micron size range could be localized to the absorptive epithelium while larger particles and formulations with low bioadhesiveness failed to penetrate enterocytes and were taken up preferentially in the Peyer’s patches. This work demonstrates that the surface chemistry of oral formulations can ultimately determine the fate and can aid in designing delivery vehicles for a variety of therapeutics currently plagued with poor oral bioavailability.
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Liu W, Pan H, Zhang C, Zhao L, Zhao R, Zhu Y, Pan W. Developments in Methods for Measuring the Intestinal Absorption of Nanoparticle-Bound Drugs. Int J Mol Sci 2016; 17:ijms17071171. [PMID: 27455239 PMCID: PMC4964542 DOI: 10.3390/ijms17071171] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/12/2016] [Accepted: 07/13/2016] [Indexed: 12/17/2022] Open
Abstract
With the rapid development of nanotechnology, novel drug delivery systems comprising orally administered nanoparticles (NPs) have been paid increasing attention in recent years. The bioavailability of orally administered drugs has significant influence on drug efficacy and therapeutic dosage, and it is therefore imperative that the intestinal absorption of oral NPs be investigated. This review examines the various literature on the oral absorption of polymeric NPs, and provides an overview of the intestinal absorption models that have been developed for the study of oral nanoparticles. Three major categories of models including a total of eight measurement methods are described in detail (in vitro: dialysis bag, rat gut sac, Ussing chamber, cell culture model; in situ: intestinal perfusion, intestinal loops, intestinal vascular cannulation; in vivo: the blood/urine drug concentration method), and the advantages and disadvantages of each method are contrasted and elucidated. In general, in vitro and in situ methods are relatively convenient but lack accuracy, while the in vivo method is troublesome but can provide a true reflection of drug absorption in vivo. This review summarizes the development of intestinal absorption experiments in recent years and provides a reference for the systematic study of the intestinal absorption of nanoparticle-bound drugs.
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Affiliation(s)
- Wei Liu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
- Department of Pharmaceutics, School of Pharmacy, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China.
| | - Hao Pan
- School of Pharmacy, Queen's University Belfast, Belfast BT7 1NN, UK.
| | - Caiyun Zhang
- Department of Pharmaceutics, School of Pharmacy, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China.
| | - Liling Zhao
- Department of Pharmaceutics, School of Pharmacy, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China.
| | - Ruixia Zhao
- Department of Pharmaceutics, School of Pharmacy, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China.
| | - Yongtao Zhu
- Department of Pharmaceutics, School of Pharmacy, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China.
| | - Weisan Pan
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
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Dinda AK, Bhat M, Srivastava S, Kottarath SK, Prashant CK. Novel nanocarrier for oral Hepatitis B vaccine. Vaccine 2016; 34:3076-3081. [PMID: 27156634 DOI: 10.1016/j.vaccine.2016.04.084] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 04/20/2016] [Accepted: 04/26/2016] [Indexed: 11/18/2022]
Abstract
Oral vaccination is a safe, cost effective and non-invasive method suitable for mass immunization. We fabricated nanoparticle (NP) with 14kd polycaprolactone (PCL) entrapping hepatitis B surface antigen (HBsAg) stabilized with Pluronics® F127 and used it as oral delivery vehicle. We evaluated its efficacy for specific antibody production and compared with parenteral routes of immunization in mice. We found a superior antibody response with a higher titer of anti-HBsAg antibody till 2 months following single oral administration compared to other routes of immunization and conventional alum-based HBsAg vaccine. The NPs with the antigen were found in the macrophages in small intestinal villi, peripheral lymph nodes and other reticulo-endothelial organs 2 months after oral administration. This study suggests the efficacy of the current nanocarrier system for efficient antigen presentation disseminated in peripheral lymphoid tissues following oral administration with a prolonged antibody response, which can minimize the requirement of booster dose.
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Affiliation(s)
- Amit K Dinda
- Department of pathology, All India Institute of medical sciences,Ansari nagar, New Delhi 110029, India.
| | - Madhusudan Bhat
- Department of pathology, All India Institute of medical sciences,Ansari nagar, New Delhi 110029, India
| | - Sandeep Srivastava
- Department of pathology, All India Institute of medical sciences,Ansari nagar, New Delhi 110029, India
| | - Sarat K Kottarath
- Department of pathology, All India Institute of medical sciences,Ansari nagar, New Delhi 110029, India
| | - Chandravilas K Prashant
- Department of pathology, All India Institute of medical sciences,Ansari nagar, New Delhi 110029, India
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Tsai Y, Mao S, Li M, Huang J, Lien T. Effects of nanosize zinc oxide on zinc retention, eggshell quality, immune response and serum parameters of aged laying hens. Anim Feed Sci Technol 2016. [DOI: 10.1016/j.anifeedsci.2016.01.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Kamil A, Smith DE, Blumberg JB, Astete C, Sabliov C, Oliver Chen CY. Bioavailability and biodistribution of nanodelivered lutein. Food Chem 2016; 192:915-23. [DOI: 10.1016/j.foodchem.2015.07.106] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 07/13/2015] [Accepted: 07/22/2015] [Indexed: 02/07/2023]
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38
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Li MZ, Huang JT, Tsai YH, Mao SY, Fu CM, Lien TF. Nanosize of zinc oxide and the effects on zinc digestibility, growth performances, immune response and serum parameters of weanling piglets. Anim Sci J 2016; 87:1379-1385. [PMID: 26805551 DOI: 10.1111/asj.12579] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 10/07/2015] [Accepted: 11/04/2015] [Indexed: 11/28/2022]
Abstract
The aim of this study was to investigate the effect of dietary supplementation of nanosize zinc on zinc digestibility, growth performances, immune response and serum parameters of weanling piglets. Ninety-six LYD weanling piglets were assigned to control, zinc oxide (ZnO), organic-Zn (Zn-methionine) and nanosize ZnO (nano-Zn) groups with four replicates. The zinc was at the 120 mg/kg level in the treatment group's diet, while the control group's was 80 mg/kg Zn. The experiment results indicated that the nano-Zn and organic-Zn groups had significantly higher Zn digestibility compared to the ZnO and control groups. For the immune response traits, the IgG level and goat red blood cells (GRBC) antibody titer were nano-Zn and organic-Zn>ZnO>control; in the phytohemagglutinin (PHA) challenge test result, nano-Zn>organic-Zn>ZnO>control; in regard to the γ-globulin level, nano-Zn and organic-Zn>ZnO and control, with significant difference between groups. In the serum parameters aspect, serum Zn concentration in nano-Zn and organic-Zn groups were higher than in the ZnO and control groups, serum growth hormone concentration was increased in the nano-Zn group than in the other groups. In conclusion, nanosize zinc oxide for dietary supplementation can increase zinc digestibility, serum growth hormone levels and carbonic anhydrase activity and enhance the immune response of weanling piglets.
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Affiliation(s)
- Ming-Zhe Li
- Department of Animal Science, National Chiayi University, Chiayi, Taiwan
| | - Jie-Ting Huang
- Department of Animal Science, National Chiayi University, Chiayi, Taiwan
| | - Yi-Hao Tsai
- Department of Animal Science, National Chiayi University, Chiayi, Taiwan
| | - Syuan-Yian Mao
- Department of Animal Science, National Chiayi University, Chiayi, Taiwan
| | - Chao-Ming Fu
- Department of Physics, National Taiwan University, Taipei, Taiwan
| | - Tu-Fa Lien
- Department of Animal Science, National Chiayi University, Chiayi, Taiwan.
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39
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Ghosh B, Nowak BF, Bridle AR. Alginate Microencapsulation for Oral Immunisation of Finfish: Release Characteristics, Ex Vivo Intestinal Uptake and In Vivo Administration in Atlantic Salmon, Salmo salar L. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:841-853. [PMID: 26410294 DOI: 10.1007/s10126-015-9663-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
This study examined the feasibility of alginate microcapsules manufactured using a low-impact technology and reagents to protect orally delivered immunogens for use as immunoprophylactics for fish. Physical characteristics and protein release kinetics of the microcapsules were examined at different pH and temperature levels using a microencapsulated model protein, bovine serum albumin (BSA). Impact of the microencapsulation process on contents was determined by analysing change in bioactivity of microencapsulated lysozyme. Feasibility of the method for oral immunoprophylaxis of finfish was assessed using FITC-labelled microcapsules. These were applied to distal intestinal explants of Atlantic salmon (Salmo salar) to investigate uptake ex vivo. Systemic distribution of microcapsules was investigated by oral administration of FITC-labelled microcapsules to Atlantic salmon fry by incorporating into feed. The microcapsules produced were structurally robust and retained surface integrity, with a modal size distribution of 250-750 nm and a tendency to aggregate. Entrapment efficiency of microencapsulation was 51.2 % for BSA and 43.2 % in the case of lysozyme. Microcapsules demonstrated controlled release of protein, which increased with increasing pH or temperature, and the process had no significant negative effect on bioactivity of lysozyme. Uptake of fluorescent-labelled microcapsules was clearly demonstrated by intestinal explants over a 24-h period. Evidence of microcapsules was found in the intestine, spleen, kidney and liver of fry following oral administration. Amenability of the microcapsules to intestinal uptake and distribution reinforced the strong potential for use of this microencapsulation method in oral immunoprophylaxis of finfish using sensitive immunogenic substances.
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Affiliation(s)
- Bikramjit Ghosh
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
| | - Barbara F Nowak
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
| | - Andrew R Bridle
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
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41
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Trif M, Florian PE, Roseanu A, Moisei M, Craciunescu O, Astete CE, Sabliov CM. Cytotoxicity and intracellular fate of PLGA and chitosan-coated PLGA nanoparticles in Madin-Darby bovine kidney (MDBK) and human colorectal adenocarcinoma (Colo 205) cells. J Biomed Mater Res A 2015; 103:3599-611. [PMID: 25976509 DOI: 10.1002/jbm.a.35498] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 04/22/2015] [Accepted: 05/06/2015] [Indexed: 11/08/2022]
Abstract
Polymeric nanoparticles (NPs) are known to facilitate intracellular uptake of drugs to improve their efficacy, with minimum bioreactivity. The goal of this study was to assess cellular uptake and trafficking of PLGA NPs and chitosan (Chi)-covered PLGA NPs in Madin-Darby bovine kidney (MDBK) and human colorectal adenocarcinoma (Colo 205) cells. Both PLGA and Chi-PLGA NPs were not cytotoxic to the studied cells at concentrations up to 2500 μg/mL. The positive charge conferred by the chitosan deposition on the PLGA NPs improved NPs uptake by MDBK cells. In this cell line, Chi-PLGA NPs colocalized partially with early endosomes compartment and showed a more consistent perinuclear localization than PLGA NPs. Kinetic uptake of PLGA NPs by Colo 205 was slower than that by MDBK cells, detected only at 24 h, exceeding that of Chi-PLGA NPs. This study offers new insights on NP interaction with target cells supporting the use of NPs as novel nutraceuticals/drug delivery systems in metabolic disorders or cancer therapy. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 103A: 3599-3611, 2015.
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Affiliation(s)
- Mihaela Trif
- Institute of Biochemistry of the Romanian Academy, Bucharest, 060031, Romania
| | - Paula E Florian
- Institute of Biochemistry of the Romanian Academy, Bucharest, 060031, Romania
| | - Anca Roseanu
- Institute of Biochemistry of the Romanian Academy, Bucharest, 060031, Romania
| | - Magdalena Moisei
- Institute of Biochemistry of the Romanian Academy, Bucharest, 060031, Romania
| | - Oana Craciunescu
- Department of Cellular Biology, National Institute R&D for Biological Sciences, Bucharest, 060031, Romania
| | - Carlos E Astete
- Biological and Agricultural Engineering Department, Louisiana State University and LSU Agricultural Center, Baton Rouge, Los Angeles, 70803
| | - Cristina M Sabliov
- Biological and Agricultural Engineering Department, Louisiana State University and LSU Agricultural Center, Baton Rouge, Los Angeles, 70803
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Francis D, Mouftah S, Steffen R, Beduneau A, Pellequer Y, Lamprecht A. Ion milling coupled field emission scanning electron microscopy reveals current misunderstanding of morphology of polymeric nanoparticles. Eur J Pharm Biopharm 2015; 89:56-61. [DOI: 10.1016/j.ejpb.2014.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 10/28/2014] [Accepted: 11/12/2014] [Indexed: 10/24/2022]
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43
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Agrawal AK, Urimi D, Harde H, Kushwah V, Jain S. Folate appended chitosan nanoparticles augment the stability, bioavailability and efficacy of insulin in diabetic rats following oral administration. RSC Adv 2015. [DOI: 10.1039/c5ra19115g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study embarks upon the folic acid (FA) functionalization of chitosan nanoparticles and its implications on stability, oral bioavailability and hypoglycemic activity following oral administration.
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Affiliation(s)
- Ashish Kumar Agrawal
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
| | - Dileep Urimi
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
| | - Harshad Harde
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
| | - Varun Kushwah
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
| | - Sanyog Jain
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
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Wang Y, Zhang X, Cheng C, Li C. Mucoadhesive and enzymatic inhibitory nanoparticles for transnasal insulin delivery. Nanomedicine (Lond) 2014; 9:451-64. [PMID: 24910876 DOI: 10.2217/nnm.13.102] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
AIM To develop a novel nanocarrier with mucoadhesion and enzymatic inhibition for transnasal insulin delivery. METHODS & METHODS: The physicochemical characterization of the nanoparticles included size and morphology, as well as mucoadhesion and enzymatic inhibition. The in vitro release of insulin from the nanoparticles was evaluated in 3 mg/ml glucose medium. The cytocompatibility of the nanoparticles was assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. The interactions of the nanoparticles with Caco-2 cells and nasal epithelia, and the effect of the nanoparticles on transnasal insulin delivery were estimated. RESULTS The nanoparticles were spherical in shape, with an average size of 100 nm, and presented strong enzymatic inhibitory activity and high mucin adsorption ability. The insulinloaded nanoparticles showed the rapid insulin release in 3 mg/ml glucose medium. The nanoparticles were noncytotoxic to Caco-2 cells. Furthermore, the insulin-loaded nanoparticles overcame mucosal barriers and significantly decreased plasma glucose levels.
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Surface functional modification of self-assembled insulin nanospheres for improving intestinal absorption. Int J Biol Macromol 2014; 74:49-60. [PMID: 25433129 DOI: 10.1016/j.ijbiomac.2014.11.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 11/17/2014] [Accepted: 11/19/2014] [Indexed: 01/12/2023]
Abstract
In this work we fabricated therapeutic protein drugs such as insulin as free-carrier delivery system to improve their oral absorption efficiency. The formulation involved self-assembly of insulin into nanospheres (INS) by a novel thermal induced phase separation method. In consideration of harsh environment in gastrointestinal tract, surface functional modification of INS with ɛ-poly-L-lysine (EPL) was employed to form a core-shell structure (INS@EPL) and protect them from too fast dissociation before their arriving at target uptake sites. Both INS and INS@EPL were characterized as uniformly spherical particles with mean diameter size of 150-300 nm. The process of transient thermal treatment did not change their biological potency retention significantly. In vitro dissolution studies showed that shell cross-linked of INS with EPL improved the release profiles of insulin from the self-assembled nanospheres at intestinal pH. Confocal microscopy visualization and transport experiments proved the enhanced paracellular permeability of INS@EPL in Caco-2 cells. Compared to that of INS, enteral administration of INS@EPL at 20 IU/kg resulted in more significant hypoglycemic effects in diabetic rats up to 12 h. Accordingly, the results indicated that surface functional modification of self-assembled insulin nanospheres with shell cross-linked polycationic peptide could be a promising candidate for oral therapeutic protein delivery.
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Harde H, Agrawal AK, Jain S. Development of stabilized glucomannosylated chitosan nanoparticles using tandem crosslinking method for oral vaccine delivery. Nanomedicine (Lond) 2014; 9:2511-29. [DOI: 10.2217/nnm.13.225] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Aim: The aim of this study was to develop a novel platform technology, comprising of stable glucomannosylated chitosan nanoparticles, for oral immunization. Materials & methods: Chitosan nanoparticles were stabilized by tandem crosslinking using tripolyphosphate followed by glutaraldehyde. Process and formulation variables were optimized using a ‘Box–Behnken’ design. The in vitro and in vivo performances were established in RAW 264.7 and BALB/c mice, respectively. Results: The lyophilized formulation was exceptionally stable in simulated biological media and the enclosed antigen was conformationally stable. The mechanistic understanding of glucomannosylated chitosan nanoparticles in RAW 264.7 revealed transcellular uptake via both mannose and glucose transporter-mediated endocytosis. Glucomannan modification resulted in significantly higher systemic (serum IgG titer), mucosal (secretory IgA) and cell-mediated (IL-2 and IFN-γ) immune responses in comparison with nonmodified chitosan nanoparticles. Conclusion: The present strategy is expected to contribute some novel tools for the oral delivery of numerous biomacromolecules. Original submitted 8 August 2013; Revised submitted 15 December 2013
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Affiliation(s)
- Harshad Harde
- Center for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research, SAS Nagar, Punjab, 160062, India
| | - Ashish Kumar Agrawal
- Center for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research, SAS Nagar, Punjab, 160062, India
| | - Sanyog Jain
- Center for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research, SAS Nagar, Punjab, 160062, India
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Paques JP, van der Linden E, van Rijn CJ, Sagis LM. Preparation methods of alginate nanoparticles. Adv Colloid Interface Sci 2014; 209:163-71. [PMID: 24745976 DOI: 10.1016/j.cis.2014.03.009] [Citation(s) in RCA: 235] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 03/20/2014] [Accepted: 03/20/2014] [Indexed: 01/21/2023]
Abstract
This article reviews available methods for the formation of alginate nano-aggregates, nanocapsules and nanospheres. Primarily, alginate nanoparticles are being prepared by two methods. In the "complexation method", complex formation on the interface of an oil droplet is used to form alginate nanocapsules, and complex formation in an aqueous solution is used to form alginate nano-aggregates. In a second method w/o emulsification coupled with gelation of the alginate emulsion droplet can be used to form alginate nanospheres. We review advantages and disadvantages of these methods, and give an overview of the properties of the alginate particles produced with these methods.
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Abstract
INTRODUCTION Oral delivery of therapeutics, particularly protein-based pharmaceutics, is of great interest for safe and controlled drug delivery for patients. Hydrogels offer excellent potential as oral therapeutic systems due to inherent biocompatibility, diversity of both natural and synthetic material options and tunable properties. In particular, stimuli-responsive hydrogels exploit physiological changes along the intestinal tract to achieve site-specific, controlled release of protein, peptide and chemotherapeutic molecules for both local and systemic treatment applications. AREAS COVERED This review provides a wide perspective on the therapeutic use of hydrogels in oral delivery systems. General features and advantages of hydrogels are addressed, with more considerable focus on stimuli-responsive systems that respond to pH or enzymatic changes in the gastrointestinal environment to achieve controlled drug release. Specific examples of therapeutics are given. Last, in vitro and in vivo methods to evaluate hydrogel performance are discussed. EXPERT OPINION Hydrogels are excellent candidates for oral drug delivery, due to the number of adaptable parameters that enable controlled delivery of diverse therapeutic molecules. However, further work is required to more accurately simulate physiological conditions and enhance performance, which is important to achieve improved bioavailability and increase commercial interest.
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Affiliation(s)
- Lindsey A Sharpe
- The University of Texas, Department of Biomedical Engineering , Austin, TX 78712 , USA +1 512 471 6644 ; +1 512 471 8227 ;
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Park MH, Baek JS, Lee CA, Kim DC, Cho CW. The effect of Eudragit type on BSA-loaded PLGA nanoparticles. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2014. [DOI: 10.1007/s40005-014-0129-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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