1
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Chen S, Wang L, Hu Y, Liu S, Geng L, Li Y. High Drug Capacity of Nano-Levodopa-Liposomes: Preparation, In Vitro Release and Brain-Targeted Research. Appl Biochem Biotechnol 2024; 196:3317-3330. [PMID: 37646886 DOI: 10.1007/s12010-023-04673-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 09/01/2023]
Abstract
In this work, nano-levodopa-liposomes (L-dopa-Lip) suspension was prepared by rotary-evaporated film-ultrasonic method, and freeze-drying powders of L-dopa-Lip were also obtained to improve the stability. The products were characterized by TEM, DLS, and TG-DSC, and the phase-transition temperature (Tm) and encapsulation efficiency were calculated. The brain-targeting and in vitro release of the drug was also studied. The results showed that L-dopa-Lip were well-formed spherical vesicles, and the sizes were about 100 nm, and the encapsulation efficiency was higher than 90%. The drug release temperature of L-dopa-Lip was 68 °C, and the in vitro release property and mathematical model were also studied. The brain targeting of L-dopa-Lip in vivo was explored by injecting the gold nanoparticles (AuNPs) labeled L-dopa-Lip (AuNPs-L-dopa-Lip) through the tail vein. ICP-MS and TEM showed that L-dopa-Lip had brain targeting, suggesting the potential treatment of L-dopa-Lip on brain dysfunction. The results of this work might be helpful for designing drug-loaded liposomes for the treatment of central nervous system (CNS) diseases and monitoring their distributions in vivo.
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Affiliation(s)
- Shenna Chen
- College of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang, 050024, China
| | - Lin Wang
- College of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang, 050024, China
| | - Yue Hu
- College of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang, 050024, China
| | - Sha Liu
- College of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang, 050024, China
| | - Lina Geng
- College of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang, 050024, China.
| | - Yayong Li
- Department of Rehabilitation Medicine, Shijiazhuang People's Hospital, Shijiazhuang, 050000, China
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2
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Liu X, Hao Y, Huang Z, Shi Y, Su C, Zhao L. Modulation of microglial polarization by sequential targeting surface-engineered exosomes improves therapy for ischemic stroke. Drug Deliv Transl Res 2024; 14:418-432. [PMID: 37587291 DOI: 10.1007/s13346-023-01408-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2023] [Indexed: 08/18/2023]
Abstract
Microglia are important cells that act on regulating neuroinflammation and neurofunction after the induction of ischemic stroke (IS). Consequently, the efficient accumulation of drugs within ischemic regions, particularly in microglia, serves as a valuable approach for achieving effective therapy by attenuating microglia-mediated cerebral ischemic injury. In this study, we designed mannose (man)-conjugated luteolin (lut)-loaded platelet-derived exosomes (lut/man-pEXO) as surface engineered multifunctional cascade-delivery drug carriers to target ischemic blood vessels and subsequent microglia to enhance drug accumulation and induce neuroprotection of neurovascular unit (NVU) against IS. The results revealed that as platelets naturally gathered in pathological ischemic cerebral vessels, lut/man-pEXO could bind to platelets and efficiently target ischemic injury sites. Moreover, owing to the selective binding affinity of mannose present in lut/man-pEXO towards the mannose receptor expressed on microglia, lut/man-pEXO exhibited superior microglia-targeting properties, inducing the increased uptake of lut by microglia. As a result, lut/man-pEXO regulated microglia by inhibiting the activation of detrimental M1 and promoting the transition towards the anti-inflammatory type (M2), thus attenuating ischemic damage of NVU by reducing the infarct area, rescuing the damage of blood-brain barrier (BBB) and preventing inflammatory transformation of astrocytes.
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Affiliation(s)
- Xintong Liu
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China
| | - Yunni Hao
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China
| | - Zhixuan Huang
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China
| | - Yijie Shi
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China
| | - Chang Su
- School of Veterinary Medicine, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China
| | - Liang Zhao
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China.
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3
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Nguyen-Thi PT, Ho TT, Nguyen TT, Vo GV. Nanotechnology-based Drug Delivery for Alzheimer's and Parkinson's Diseases. Curr Drug Deliv 2024; 21:917-931. [PMID: 37424345 DOI: 10.2174/1567201820666230707113405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 05/03/2023] [Accepted: 05/12/2023] [Indexed: 07/11/2023]
Abstract
The delivery of drugs to the brain is quite challenging in the treatment of the central nervous system (CNS) diseases due to the blood-brain barrier and the blood-cerebrospinal fluid barrier. However, significant developments in nanomaterials employed by nanoparticle drug-delivery systems have substantial potential to cross or bypass these barriers leading to enhanced therapeutic efficacies. Advances in nanoplatform, nanosystems based on lipids, polymers and inorganic materials have been extensively studied and applied in treating Alzheimer's and Parkinson's diseases. In this review, various types of brain drug delivery nanocarriers are classified, summarized, and their potential as drug delivery systems in Alzheimer's and Parkinson's diseases is discussed. Finally, challenges facing the clinical translation of nanoparticles from bench to bedside are highlighted.
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Affiliation(s)
| | - Thanh-Tam Ho
- Institute for Global Health Innovations, Duy Tan University, Da Nang 550000, Vietnam
- Faculty of Pharmacy, Duy Tan University, Da Nang 550000, Vietnam
| | - Thuy Trang Nguyen
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 71420, Vietnam
| | - Giau Van Vo
- Department of Biomedical Engineering, School of Medicine, Vietnam National University, Ho Chi Minh City [VNU-HCM], Ho Chi Minh City 700000, Vietnam
- Research Center for Genetics and Reproductive Health [CGRH], School of Medicine, Vietnam National University, Ho Chi Minh City [VNU-HCM], Ho Chi Minh City 70000, Vietnam
- Vietnam National University, Ho Chi Minh City [VNU-HCM], Ho Chi Minh City 700000, Vietnam
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4
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Roy R, Paul R, Bhattacharya P, Borah A. Combating Dopaminergic Neurodegeneration in Parkinson's Disease through Nanovesicle Technology. ACS Chem Neurosci 2023; 14:2830-2848. [PMID: 37534999 DOI: 10.1021/acschemneuro.3c00070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023] Open
Abstract
Parkinson's disease (PD) is characterized by dopaminergic neurodegeneration, resulting in dopamine depletion and motor behavior deficits. Since the discovery of L-DOPA, it has been the most prescribed drug for symptomatic relief in PD, whose prolonged use, however, causes undesirable motor fluctuations like dyskinesia and dystonia. Further, therapeutics targeting the pathological hallmarks of PD including α-synuclein aggregation, oxidative stress, neuroinflammation, and autophagy impairment have also been developed, yet PD treatment is a largely unmet success. The inception of the nanovesicle-based drug delivery approach over the past few decades brings add-on advantages to the therapeutic strategies for PD treatment in which nanovesicles (basically phospholipid-containing artificial structures) are used to load and deliver drugs to the target site of the body. The present review narrates the characteristic features of nanovesicles including their blood-brain barrier permeability and ability to reach dopaminergic neurons of the brain and finally discusses the current status of this technology in the treatment of PD. From the review, it becomes evident that with the assistance of nanovesicle technology, the therapeutic efficacy of anti-PD pharmaceuticals, phyto-compounds, as well as that of nucleic acids targeting α-synuclein aggregation gained a significant increment. Furthermore, owing to the multiple drug-carrying abilities of nanovesicles, combination therapy targeting multiple pathogenic events of PD has also found success in preclinical studies and will plausibly lead to effective treatment strategies in the near future.
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Affiliation(s)
- Rubina Roy
- Cellular and Molecular Neurobiology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar 788011, Assam, India
| | - Rajib Paul
- Department of Zoology, Pandit Deendayal Upadhyaya Adarsha Mahavidyalaya (PDUAM), Eraligool, Karimganj 788723, Assam, India
| | - Pallab Bhattacharya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad 382355, Gandhinagar, Gujarat, India
| | - Anupom Borah
- Cellular and Molecular Neurobiology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar 788011, Assam, India
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5
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Wei D, Zhang N, Qu S, Wang H, Li J. Advances in nanotechnology for the treatment of GBM. Front Neurosci 2023; 17:1180943. [PMID: 37214394 PMCID: PMC10196029 DOI: 10.3389/fnins.2023.1180943] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/05/2023] [Indexed: 05/24/2023] Open
Abstract
Glioblastoma (GBM), a highly malignant glioma of the central nervous system, is the most dread and common brain tumor with a high rate of therapeutic resistance and recurrence. Currently, the clinical treatment methods are surgery, radiotherapy, and chemotherapy. However, owning to the highly invasive nature of GBM, it is difficult to completely resect them due to the unclear boundary between the edges of GBM and normal brain tissue. Traditional radiotherapy and the combination of alkylating agents and radiotherapy have significant side effects, therapeutic drugs are difficult to penetrate the blood brain barrier. Patients receiving treatment have a high postoperative recurrence rate and a median survival of less than 2 years, Less than 5% of patients live longer than 5 years. Therefore, it is urgent to achieve precise treatment through the blood brain barrier and reduce toxic and side effects. Nanotechnology exhibit great potential in this area. This article summarizes the current treatment methods and shortcomings of GBM, and summarizes the research progress in the diagnosis and treatment of GBM using nanotechnology.
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Affiliation(s)
- Dongyan Wei
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
- College of Life Sciences, Tarim University, Alar, China
| | - Ni Zhang
- Mental Health Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shuang Qu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Hao Wang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Jin Li
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
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6
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Chavda VP, Khadela A, Shah Y, Postwala H, Balar P, Vora L. Current status of Cancer Nanotheranostics: Emerging strategies for cancer management. Nanotheranostics 2023; 7:368-379. [PMID: 37151802 PMCID: PMC10161386 DOI: 10.7150/ntno.82263] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/20/2023] [Indexed: 05/09/2023] Open
Abstract
Cancer diagnosis and management have been a slow-evolving area in medical science. Conventional therapies have by far proved to have various limitations. Also, the concept of immunotherapy which was thought to revolutionize the management of cancer has presented its range of drawbacks. To overcome these limitations nanoparticulate-derived diagnostic and therapeutic strategies are emerging. These nanomaterials are to be explored as they serve as a prospect for cancer theranostics. Nanoparticles have a significant yet unclear role in screening as well as therapy of cancer. However, nanogels and Photodynamic therapy is one such approach to be developed in cancer theranostics. Photoactive cancer theranostics is a vivid area that might prove to help manage cancer. Also, the utilization of the quantum dots as a diagnostic tool and to selectively kill cancer cells, especially in CNS tumors. Additionally, the redox-sensitive micelles targeting the tumor microenvironment of the cancer are also an important theranostic tool. This review focuses on exploring various agents that are currently being studied or can further be studied as cancer theranostics.
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Affiliation(s)
- Vivek P Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, L.M. College of Pharmacy, Ahmedabad, Gujarat 380009, India
- ✉ Corresponding author: Vivek P. Chavda, Department of Pharmaceutics and Pharmaceutical Technology, L.M. College of Pharmacy, Niangua, Ahmedabad (Gujarat)-380009. +91 7030919407; ; ORCID ID: https://orcid.org/0000-0002-7701-8597
| | - Avinash Khadela
- Department of Pharmacology, L. M. College of Pharmacy, Niangua, Ahmedabad, Gujarat 380009, India
| | - Yasha Shah
- PharmD Section, L.M. College of Pharmacy, Ahmedabad, Gujarat 380009, India
| | - Humzah Postwala
- PharmD Section, L.M. College of Pharmacy, Ahmedabad, Gujarat 380009, India
| | - Pankti Balar
- Pharmacy Section, L.M. College of Pharmacy, Ahmedabad, Gujarat 380009, India
| | - Lalit Vora
- School of Pharmacy, Queen's University Belfast, 97 Lilburn Road, BT9 7BL, U.K
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7
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Abstract
Super-resolution imaging techniques that overcome the diffraction limit of light have gained wide popularity for visualizing cellular structures with nanometric resolution. Following the pace of hardware developments, the availability of new fluorescent probes with superior properties is becoming ever more important. In this context, fluorescent nanoparticles (NPs) have attracted increasing attention as bright and photostable probes that address many shortcomings of traditional fluorescent probes. The use of NPs for super-resolution imaging is a recent development and this provides the focus for the current review. We give an overview of different super-resolution methods and discuss their demands on the properties of fluorescent NPs. We then review in detail the features, strengths, and weaknesses of each NP class to support these applications and provide examples from their utilization in various biological systems. Moreover, we provide an outlook on the future of the field and opportunities in material science for the development of probes for multiplexed subcellular imaging with nanometric resolution.
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Affiliation(s)
- Wei Li
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, People’s Republic
of China
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | | | - Bingfu Lei
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, People’s Republic
of China
| | - Yingliang Liu
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, People’s Republic
of China
| | - Clemens F. Kaminski
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
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8
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Mills H, Acquah R, Tang N, Cheung L, Klenk S, Glassen R, Pirson M, Albert A, Hoang DT, Van TN. A Critical Scrutiny on Liposomal Nanoparticles Drug Carriers as Modelled by Topotecan Encapsulation and Release in Treating Cancer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:7702512. [PMID: 35983007 PMCID: PMC9381203 DOI: 10.1155/2022/7702512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/10/2022] [Accepted: 07/27/2022] [Indexed: 11/18/2022]
Abstract
The medical field is looking for drugs and/or ways of delivering drugs without harming patients. A number of severe drug side effects are reported, such as acute kidney injury (AKI), hepatotoxicity, skin rash, and so on. Nanomedicine has come to the rescue. Liposomal nanoparticles have shown great potential in loading drugs, and delivering drugs to specific targeted sites, hence achieving a needed bioavailability and steady state concentration, which is achieved by a controlled drug release ability by the nanoparticles. The liposomal nanoparticles can be conjugated to cancer receptor tags that give the anticancer-loaded nanoparticles specificity to deliver anticancer agents only at cancerous sites, hence circumventing destruction of normal cells. Also, the particles are biocompatible. The drugs are shielded by attack from the liver and other cytochrome P450 enzymes before reaching the desired sites. The challenge, however, is that the drug release is slow by these nanoparticles on their own. Scientists then came up with several ways to enhance drug release. Magnetic fields, UV light, infrared light, and so on are amongst the enhancers used by scientists to potentiate drug release from nanoparticles. In this paper, synthesis of liposomal nanoparticle formulations (liposomal-quantum dots (L-QDs), liposomal-quantum dots loaded with topotecan (L-QD-TPT)) and their analysis (cytotoxicity, drug internalization, loading efficiency, drug release rate, and the uptake of the drug and nanoparticles by the HeLa cells) are discussed.
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Affiliation(s)
- Hilla Mills
- Department of Medical Science, University for Development, Accra, Ghana
| | - Ronald Acquah
- Department of Medical Science, University for Development, Accra, Ghana
| | - Nova Tang
- RD Lab, The Hospital Institute for Hebal Research, Toluca, MEX 50200, Mexico
| | - Luke Cheung
- RD Lab, The Hospital Institute for Hebal Research, Toluca, MEX 50200, Mexico
| | - Susanne Klenk
- Research Institution of Clinical Biomedicine, Hospital University Medical Centre, Ulm 89000, Germany
| | - Ronald Glassen
- Research Institution of Clinical Biomedicine, Hospital University Medical Centre, Ulm 89000, Germany
| | - Magali Pirson
- Industrial Research Group, International College of Science and Technology, Route de Lennik 800, CP 590, Brussels 1070, Belgium
| | - Alain Albert
- Industrial Research Group, International College of Science and Technology, Route de Lennik 800, CP 590, Brussels 1070, Belgium
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9
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Ultrasound-Triggered Liposomes Encapsulating Quantum Dots as Safe Fluorescent Markers for Colorectal Cancer. Pharmaceutics 2021; 13:pharmaceutics13122073. [PMID: 34959354 PMCID: PMC8705306 DOI: 10.3390/pharmaceutics13122073] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/24/2021] [Accepted: 11/27/2021] [Indexed: 11/21/2022] Open
Abstract
Quantum dots (QDs) are a promising tool to detect and monitor tumors. However, their small size allows them to accumulate in large quantities inside the healthy cells (in addition to the tumor cells), which increases their toxicity. In this study, we synthesized stealth liposomes encapsulating hydrophilic graphene quantum dots and triggered their release with ultrasound with the goal of developing a safer and well-controlled modality to deliver fluorescent markers to tumors. Our results confirmed the successful encapsulation of the QDs inside the core of the liposomes and showed no effect on the size or stability of the prepared liposomes. Our results also showed that low-frequency ultrasound is an effective method to release QDs encapsulated inside the liposomes in a spatially and temporally controlled manner to ensure the effective delivery of QDs to tumors while reducing their systemic toxicity.
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10
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Liang P, Mao L, Dong Y, Zhao Z, Sun Q, Mazhar M, Ma Y, Yang S, Ren W. Design and Application of Near-Infrared Nanomaterial-Liposome Hybrid Nanocarriers for Cancer Photothermal Therapy. Pharmaceutics 2021; 13:2070. [PMID: 34959351 PMCID: PMC8704010 DOI: 10.3390/pharmaceutics13122070] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/09/2021] [Accepted: 11/26/2021] [Indexed: 01/04/2023] Open
Abstract
Liposomes are attractive carriers for targeted and controlled drug delivery receiving increasing attention in cancer photothermal therapy. However, the field of creating near-infrared nanomaterial-liposome hybrid nanocarriers (NIRN-Lips) is relatively little understood. The hybrid nanocarriers combine the dual superiority of nanomaterials and liposomes, with more stable particles, enhanced photoluminescence, higher tumor permeability, better tumor-targeted drug delivery, stimulus-responsive drug release, and thus exhibiting better anti-tumor efficacy. Herein, this review covers the liposomes supported various types of near-infrared nanomaterials, including gold-based nanomaterials, carbon-based nanomaterials, and semiconductor quantum dots. Specifically, the NIRN-Lips are described in terms of their feature, synthesis, and drug-release mechanism. The design considerations of NIRN-Lips are highlighted. Further, we briefly introduced the photothermal conversion mechanism of NIRNs and the cell death mechanism induced by photothermal therapy. Subsequently, we provided a brief conclusion of NIRNs-Lips applied in cancer photothermal therapy. Finally, we discussed a synopsis of associated challenges and future perspectives for the applications of NIRN-Lips in cancer photothermal therapy.
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Affiliation(s)
- Pan Liang
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Linshen Mao
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Yanli Dong
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Zhenwen Zhao
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry Chinese Academy of Sciences, Beijing Mass Spectrum Center, Beijing 100190, China;
| | - Qin Sun
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Maryam Mazhar
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Yining Ma
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Sijin Yang
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Wei Ren
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
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11
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Chang D, Ma Y, Xu X, Xie J, Ju S. Stimuli-Responsive Polymeric Nanoplatforms for Cancer Therapy. Front Bioeng Biotechnol 2021; 9:707319. [PMID: 34249894 PMCID: PMC8267819 DOI: 10.3389/fbioe.2021.707319] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 05/27/2021] [Indexed: 12/12/2022] Open
Abstract
Polymeric nanoparticles have been widely used as carriers of drugs and bioimaging agents due to their excellent biocompatibility, biodegradability, and structural versatility. The principal application of polymeric nanoparticles in medicine is for cancer therapy, with increased tumor accumulation, precision delivery of anticancer drugs to target sites, higher solubility of pharmaceutical properties and lower systemic toxicity. Recently, the stimuli-responsive polymeric nanoplatforms attracted more and more attention because they can change their physicochemical properties responding to the stimuli conditions, such as low pH, enzyme, redox agents, hypoxia, light, temperature, magnetic field, ultrasound, and so on. Moreover, the unique properties of stimuli-responsive polymeric nanocarriers in target tissues may significantly improve the bioactivity of delivered agents for cancer treatment. This review introduces stimuli-responsive polymeric nanoparticles and their applications in tumor theranostics with the loading of chemical drugs, nucleic drugs and imaging molecules. In addition, we discuss the strategy for designing multifunctional polymeric nanocarriers and provide the perspective for the clinical applications of these stimuli-responsive polymeric nanoplatforms.
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Affiliation(s)
- Di Chang
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Yuanyuan Ma
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Xiaoxuan Xu
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Jinbing Xie
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Shenghong Ju
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
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12
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Silva S, Almeida AJ, Vale N. Importance of Nanoparticles for the Delivery of Antiparkinsonian Drugs. Pharmaceutics 2021; 13:508. [PMID: 33917696 PMCID: PMC8068059 DOI: 10.3390/pharmaceutics13040508] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/01/2021] [Accepted: 04/05/2021] [Indexed: 11/27/2022] Open
Abstract
Parkinson's disease (PD) affects around ten million people worldwide and is considered the second most prevalent neurodegenerative disease after Alzheimer's disease. In addition, there is a higher risk incidence in the elderly population. The main PD hallmarks include the loss of dopaminergic neurons and the development of Lewy bodies. Unfortunately, motor symptoms only start to appear when around 50-70% of dopaminergic neurons have already been lost. This particularly poses a huge challenge for early diagnosis and therapeutic effectiveness. Actually, pharmaceutical therapy is able to relief motor symptoms, but as the disease progresses motor complications and severe side-effects start to appear. In this review, we explore the research conducted so far in order to repurpose drugs for PD with the use of nanodelivery systems, alternative administration routes, and nanotheranostics. Overall, studies have demonstrated great potential for these nanosystems to target the brain, improve drug pharmacokinetic profile, and decrease side-effects.
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Affiliation(s)
- Sara Silva
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), 4200-450 Porto, Portugal;
- Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
| | - António J. Almeida
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
| | - Nuno Vale
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), 4200-450 Porto, Portugal;
- Faculty of Medicine, University of Porto, Al. Hernâni Monteiro, 4200-319 Porto, Portugal
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13
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Mabrouk M, Das DB, Salem ZA, Beherei HH. Nanomaterials for Biomedical Applications: Production, Characterisations, Recent Trends and Difficulties. Molecules 2021; 26:1077. [PMID: 33670668 PMCID: PMC7922738 DOI: 10.3390/molecules26041077] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/14/2021] [Accepted: 02/15/2021] [Indexed: 12/18/2022] Open
Abstract
Designing of nanomaterials has now become a top-priority research goal with a view to developing specific applications in the biomedical fields. In fact, the recent trends in the literature show that there is a lack of in-depth reviews that specifically highlight the current knowledge based on the design and production of nanomaterials. Considerations of size, shape, surface charge and microstructures are important factors in this regard as they affect the performance of nanoparticles (NPs). These parameters are also found to be dependent on their synthesis methods. The characterisation techniques that have been used for the investigation of these nanomaterials are relatively different in their concepts, sample preparation methods and obtained results. Consequently, this review article aims to carry out an in-depth discussion on the recent trends on nanomaterials for biomedical engineering, with a particular emphasis on the choices of the nanomaterials, preparation methods/instruments and characterisations techniques used for designing of nanomaterials. Key applications of these nanomaterials, such as tissue regeneration, medication delivery and wound healing, are also discussed briefly. Covering this knowledge gap will result in a better understanding of the role of nanomaterial design and subsequent larger-scale applications in terms of both its potential and difficulties.
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Affiliation(s)
- Mostafa Mabrouk
- Refractories, Ceramics and Building Materials Department, National Research Centre, 33El Bohouth St (former EL Tahrir St), Dokki, Giza P.O. 12622, Egypt;
- Department of Chemical Engineering, Loughborough University, Loughborough LE113TU, Leicestershire, UK
| | - Diganta B. Das
- Department of Chemical Engineering, Loughborough University, Loughborough LE113TU, Leicestershire, UK
| | - Zeinab A. Salem
- Department of Oral Biology, Faculty of Dentistry, Cairo University, Giza P.O. 12613, Egypt;
- Faculty of Oral and Dental Medicine, Ahram Canadian University, 6 October City P.O. 12573, Egypt
| | - Hanan H. Beherei
- Refractories, Ceramics and Building Materials Department, National Research Centre, 33El Bohouth St (former EL Tahrir St), Dokki, Giza P.O. 12622, Egypt;
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14
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Cabellos J, Gimeno-Benito I, Catalán J, Lindberg HK, Vales G, Fernandez-Rosas E, Ghemis R, Jensen KA, Atluri R, Vázquez-Campos S, Janer G. Short-term oral administration of non-porous and mesoporous silica did not induce local or systemic toxicity in mice. Nanotoxicology 2020; 14:1324-1341. [PMID: 33108958 DOI: 10.1080/17435390.2020.1818325] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this study, two sets of methyl-coated non-porous and mesoporous amorphous silica materials of two target sizes (100 and 300 nm; 10-844 m2/g) were used to investigate the potential role of specific surface area (SSA) and porosity on the oral toxicity in mice. Female Swiss mice were administered by oral gavage for 5 consecutive days. Two silica dose levels (100 and 1000 mg/kg b.w.) were tested for all four materials. All dispersions were characterized by transmission electron microscopy (TEM) and Nanoparticle tracking analysis (NTA). Batch dispersions of porous silica were rather unstable due to agglomeration. Animals were sacrificed one day after the last administration or after a three-week recovery period. No relevant toxicological effects were induced by any of the silica materials tested, as evaluated by body weight, gross pathology, relative organ weights (liver, spleen, kidneys), hematology, blood biochemistry, genotoxicity (Comet assay in jejunum cells and micronucleus test in peripheral blood erythrocytes), liver and small intestine histopathology, and intestinal inflammation. The presence of silica particles in the intestine was evaluated by a hyperspectral imaging microscopy system (CytoViva) using histological samples of jejunum tissue. Silica spectral signatures were found in jejunum samples with all the treatments, but only statistically significant in one of the treatment groups.
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Affiliation(s)
| | | | - Julia Catalán
- Finnish Institute of Occupational Health, Helsinki, Finland.,Department of Anatomy, Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
| | - Hanna K Lindberg
- Finnish Institute of Occupational Health, Helsinki, Finland.,Finnish Safety and Chemicals Agency, Helsinki, Finland
| | - Gerard Vales
- Finnish Institute of Occupational Health, Helsinki, Finland
| | | | - Radu Ghemis
- Leitat Technological Center, Terrassa, Spain
| | - Keld A Jensen
- The National Research Centre for the Working Environment, Copenhague, Denmark
| | - Rambabu Atluri
- The National Research Centre for the Working Environment, Copenhague, Denmark.,INFINGENT Innovations AB, Medeon Science Park, Malmö, Sweden
| | | | - Gemma Janer
- Leitat Technological Center, Terrassa, Spain
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15
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Huang R, Boltze J, Li S. Strategies for Improved Intra-arterial Treatments Targeting Brain Tumors: a Systematic Review. Front Oncol 2020; 10:1443. [PMID: 32983974 PMCID: PMC7479245 DOI: 10.3389/fonc.2020.01443] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 07/08/2020] [Indexed: 12/16/2022] Open
Abstract
Conventional treatments for brain tumors relying on surgery, radiation, and systemic chemotherapy are often associated with high recurrence and poor prognosis. In recent decades, intra-arterial administration of anti-cancer drugs has been considered a suitable alternative drug delivery route to intravenous and oral administration. Intra-arterial administration is believed to offer increasing drug responses by primary and metastatic brain tumors, and to be associated with better median overall survival. By directly injecting therapeutic agents into carotid or vertebral artery, intra-arterial administration rapidly increases intra-tumoral drug concentration but lowers systemic exposure. However, unexpected vascular or neural toxicity has questioned the therapeutic safety of intra-arterial drug administration and limits its widespread clinical application. Therefore, improving targeting and accuracy of intra-arterial administration has become a major research focus. This systematic review categorizes strategies for optimizing intra-arterial administration into five categories: (1) transient blood-brain barrier (BBB)/blood-tumor barrier (BTB) disruption, (2) regional cerebral hypoperfusion for peritumoral hemodynamic changes, (3) superselective endovascular intervention, (4) high-resolution imaging techniques, and (5) others such as cell and gene therapy. We summarize and discuss both preclinical and clinical research, focusing on advantages and disadvantages of different treatment strategies for a variety of cerebral tumor types.
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Affiliation(s)
- Rui Huang
- Department of Neurology, Dalian Municipal Central Hospital Affiliated With Dalian Medical University, Dalian, China
| | - Johannes Boltze
- School of Life Sciences, University of Warwick, Coventry, United Kingdom
| | - Shen Li
- Department of Neurology, Dalian Municipal Central Hospital Affiliated With Dalian Medical University, Dalian, China
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16
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Spencer AP, Torrado M, Custódio B, Silva-Reis SC, Santos SD, Leiro V, Pêgo AP. Breaking Barriers: Bioinspired Strategies for Targeted Neuronal Delivery to the Central Nervous System. Pharmaceutics 2020; 12:E192. [PMID: 32102252 PMCID: PMC7076453 DOI: 10.3390/pharmaceutics12020192] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/01/2020] [Accepted: 02/19/2020] [Indexed: 12/23/2022] Open
Abstract
Central nervous system (CNS) disorders encompass a vast spectrum of pathological conditions and represent a growing concern worldwide. Despite the high social and clinical interest in trying to solve these pathologies, there are many challenges to bridge in order to achieve an effective therapy. One of the main obstacles to advancements in this field that has hampered many of the therapeutic strategies proposed to date is the presence of the CNS barriers that restrict the access to the brain. However, adequate brain biodistribution and neuronal cells specific accumulation in the targeted site also represent major hurdles to the attainment of a successful CNS treatment. Over the last few years, nanotechnology has taken a step forward towards the development of therapeutics in neurologic diseases and different approaches have been developed to surpass these obstacles. The versatility of the designed nanocarriers in terms of physical and chemical properties, and the possibility to functionalize them with specific moieties, have resulted in improved neurotargeted delivery profiles. With the concomitant progress in biology research, many of these strategies have been inspired by nature and have taken advantage of physiological processes to achieve brain delivery. Here, the different nanosystems and targeting moieties used to achieve a neuronal delivery reported in the open literature are comprehensively reviewed and critically discussed, with emphasis on the most recent bioinspired advances in the field. Finally, we express our view on the paramount challenges in targeted neuronal delivery that need to be overcome for these promising therapeutics to move from the bench to the bedside.
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Affiliation(s)
- Ana P. Spencer
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.S.); (M.T.); (B.C.); (S.C.S.-R.); (S.D.S.); (V.L.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- FEUP—Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal
| | - Marília Torrado
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.S.); (M.T.); (B.C.); (S.C.S.-R.); (S.D.S.); (V.L.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal
| | - Beatriz Custódio
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.S.); (M.T.); (B.C.); (S.C.S.-R.); (S.D.S.); (V.L.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal
| | - Sara C. Silva-Reis
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.S.); (M.T.); (B.C.); (S.C.S.-R.); (S.D.S.); (V.L.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Sofia D. Santos
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.S.); (M.T.); (B.C.); (S.C.S.-R.); (S.D.S.); (V.L.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Victoria Leiro
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.S.); (M.T.); (B.C.); (S.C.S.-R.); (S.D.S.); (V.L.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Ana P. Pêgo
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (A.P.S.); (M.T.); (B.C.); (S.C.S.-R.); (S.D.S.); (V.L.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- FEUP—Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal
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17
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El-Sawy HS, Al-Abd AM, Ahmed TA, El-Say KM, Torchilin VP. Stimuli-Responsive Nano-Architecture Drug-Delivery Systems to Solid Tumor Micromilieu: Past, Present, and Future Perspectives. ACS NANO 2018; 12:10636-10664. [PMID: 30335963 DOI: 10.1021/acsnano.8b06104] [Citation(s) in RCA: 268] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The microenvironment characteristics of solid tumors, renowned as barriers that harshly impeded many drug-delivery approaches, were precisely studied, investigated, categorized, divided, and subdivided into a complex diverse of barriers. These categories were further studied with a particular perspective, which makes all barriers found in solid-tumor micromilieu turn into different types of stimuli, and were considered triggers that can increase and hasten drug-release targeting efficacy. This review gathers data concerning the nature of solid-tumor micromilieu. Past research focused on the treatment of such tumors, the recent efforts employed for engineering smart nanoarchitectures with the utilization of the specified stimuli categories, the possibility of combining more than one stimuli for much-greater targeting enhancement, examples of the approved nanoarchitectures that already translated clinically as well as the obstacles faced by the use of these nanostructures, and, finally, an overview of the possible future implementations of smart-chemical engineering for the design of more-efficient drug delivery and theranostic systems and for making nanosystems with a much-higher level of specificity and penetrability features.
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Affiliation(s)
- Hossam S El-Sawy
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy , Egyptian Russian University , Badr City , Cairo 63514 , Egypt
| | - Ahmed M Al-Abd
- Department of Pharmaceutical Sciences, College of Pharmacy , Gulf Medical University , Ajman , United Arab Emirates
- Pharmacology Department, Medical Division , National Research Centre , Giza 12622 , Egypt
| | - Tarek A Ahmed
- Department of Pharmaceutics, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Al-Azhar University , Cairo 11651 , Egypt
| | - Khalid M El-Say
- Department of Pharmaceutics, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Al-Azhar University , Cairo 11651 , Egypt
| | - Vladimir P Torchilin
- Department of Pharmaceutical Sciences Center for Pharmaceutical Biotechnology and Nanomedicine , Northeastern University , 140 The Fenway, Room 211/214, 360 Huntington Aveue , Boston , Massachusetts 02115 , United States
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18
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Fernandes LF, Bruch GE, Massensini AR, Frézard F. Recent Advances in the Therapeutic and Diagnostic Use of Liposomes and Carbon Nanomaterials in Ischemic Stroke. Front Neurosci 2018; 12:453. [PMID: 30026685 PMCID: PMC6041432 DOI: 10.3389/fnins.2018.00453] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 06/13/2018] [Indexed: 12/11/2022] Open
Abstract
The complexity of the central nervous system (CNS), its limited self-repairing capacity and the ineffective delivery of most CNS drugs to the brain contribute to the irreversible and progressive nature of many neurological diseases and also the severity of the outcome. Therefore, neurological disorders belong to the group of pathologies with the greatest need of new technologies for diagnostics and therapeutics. In this scenario, nanotechnology has emerged with innovative and promising biomaterials and tools. This review focuses on ischemic stroke, being one of the major causes of death and serious long-term disabilities worldwide, and the recent advances in the study of liposomes and carbon nanomaterials for therapeutic and diagnostic purposes. Ischemic stroke occurs when blood flow to the brain is insufficient to meet metabolic demand, leading to a cascade of physiopathological events in the CNS including local blood brain barrier (BBB) disruption. However, to date, the only treatment approved by the FDA for this pathology is based on the potentially toxic tissue plasminogen activator. The techniques currently available for diagnosis of stroke also lack sensitivity. Liposomes and carbon nanomaterials were selected for comparison in this review, because of their very distinct characteristics and ranges of applications. Liposomes represent a biomimetic system, with composition, structural organization and properties very similar to biological membranes. On the other hand, carbon nanomaterials, which are not naturally encountered in the human body, exhibit new modes of interaction with biological molecules and systems, resulting in unique pharmacological properties. In the last years, several neuroprotective agents have been evaluated under the encapsulated form in liposomes, in experimental models of stroke. Effective drug delivery to the brain and neuroprotection were achieved using stealth liposomes bearing targeting ligands onto their surface for brain endothelial cells and ischemic tissues receptors. Carbon nanomaterials including nanotubes, fullerenes and graphene, started to be investigated and potential applications for therapy, biosensing and imaging have been identified based on their antioxidant action, their intrinsic photoluminescence, their ability to cross the BBB, transitorily decrease the BBB paracellular tightness, carry oligonucleotides and cells and induce cell differentiation. The potential future developments in the field are finally discussed.
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Affiliation(s)
| | | | - André R. Massensini
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Frédéric Frézard
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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19
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Zamora-Perez P, Tsoutsi D, Xu R, Rivera Gil P. Hyperspectral-Enhanced Dark Field Microscopy for Single and Collective Nanoparticle Characterization in Biological Environments. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E243. [PMID: 29415420 PMCID: PMC5848940 DOI: 10.3390/ma11020243] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/18/2018] [Accepted: 01/31/2018] [Indexed: 11/16/2022]
Abstract
We review how the hyperspectral dark field analysis gives us quantitative insights into the manner that different nanoscale materials interact with their environment and how this relationship is directly expressed in an optical readout. We engage classification tools to identify dominant spectral signatures within a scene or to qualitatively characterize nanoparticles individually or in populations based on their composition and morphology. Moreover, we follow up the morphological evolution of nanoparticles over time and in different biological environments to better understand and establish a link between the observed nanoparticles' changes and cellular behaviors.
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Affiliation(s)
- Paula Zamora-Perez
- Integrative Biomedical Materials and Nanomedicine Lab, Department of Experimental and Health Sciences (DCEXS), Pompeu Fabra University (UPF), PRBB, Barcelona 08003, Spain.
| | - Dionysia Tsoutsi
- Integrative Biomedical Materials and Nanomedicine Lab, Department of Experimental and Health Sciences (DCEXS), Pompeu Fabra University (UPF), PRBB, Barcelona 08003, Spain.
| | - Ruixue Xu
- Integrative Biomedical Materials and Nanomedicine Lab, Department of Experimental and Health Sciences (DCEXS), Pompeu Fabra University (UPF), PRBB, Barcelona 08003, Spain.
| | - Pilar Rivera Gil
- Integrative Biomedical Materials and Nanomedicine Lab, Department of Experimental and Health Sciences (DCEXS), Pompeu Fabra University (UPF), PRBB, Barcelona 08003, Spain.
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20
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Joshi S, Cooke JRN, Chan DKW, Ellis JA, Hossain SS, Singh-Moon RP, Wang M, Bigio IJ, Bruce JN, Straubinger RM. Liposome size and charge optimization for intraarterial delivery to gliomas. Drug Deliv Transl Res 2018; 6:225-33. [PMID: 27091339 DOI: 10.1007/s13346-016-0294-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Nanoparticles such as liposomes may be used as drug delivery vehicles for brain tumor therapy. Particle geometry and electrostatic properties have been hypothesized to be important determinants of effective tumor targeting after intraarterial injection. In this study, we investigate the combined roles of liposome size and surface charge on the effectiveness of delivery to gliomas after intraarterial injection. Intracarotid injection of liposomes was performed in separate cohorts of both healthy and C6 glioma-bearing Sprague Dawley rats after induction of transient cerebral hypoperfusion. Large (200 nm) and small (60-80 nm) fluorescent dye-loaded liposomes that were either cationic or neutral in surface charge were utilized. Delivery effectiveness was quantitatively measured both with real-time, in vivo and postmortem diffuse reflectance spectroscopy. Semi-quantitative multispectral fluorescence imaging was also utilized to assess the pattern and extent of liposome targeting within tumors. Large cationic liposomes demonstrated the most effective hemispheric and glioma targeting of all the liposomes tested. Selective large cationic liposome retention at the site of glioma growth was observed. The liposome deposition pattern within tumors after intraarterial injection was variable with both core penetration and peripheral deposition observed in specific tumors. This study provides evidence that liposome size and charge are important determinants of effective brain and glioma targeting after intraarterial injection. Our results support the future development of 200-nm cationic liposomal formulations of candidate intraarterial anti-glioma agents for further pre-clinical testing.
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Affiliation(s)
- Shailendra Joshi
- Department of Anesthesiology, Columbia University Medical Center, 630 West 168th Street, P&S Box 46, New York, NY, 10032, USA.
| | - Johann R N Cooke
- Department of Anesthesiology, Columbia University Medical Center, 630 West 168th Street, P&S Box 46, New York, NY, 10032, USA
| | - Darren K W Chan
- Department of Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Jason A Ellis
- Department of Neurological Surgery, Columbia University Medical Center, New York, NY, USA
| | - Shaolie S Hossain
- Department of Molecular Cardiology, Texas Heart Institute, Houston, TX, USA.,Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX, USA
| | | | - Mei Wang
- Department of Anesthesiology, Columbia University Medical Center, 630 West 168th Street, P&S Box 46, New York, NY, 10032, USA
| | - Irving J Bigio
- Department of Electrical Engineering and Biomedical Engineering, Boston University, Boston, MA, USA
| | - Jeffrey N Bruce
- Department of Neurological Surgery, Columbia University Medical Center, New York, NY, USA
| | - Robert M Straubinger
- Department of Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, USA.,Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, USA
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21
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Manaia EB, Abuçafy MP, Chiari-Andréo BG, Silva BL, Oshiro Junior JA, Chiavacci LA. Physicochemical characterization of drug nanocarriers. Int J Nanomedicine 2017; 12:4991-5011. [PMID: 28761340 PMCID: PMC5516877 DOI: 10.2147/ijn.s133832] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Pharmaceutical design has enabled important advances in the prevention, treatment, and diagnosis of diseases. The use of nanotechnology to optimize the delivery of drugs and diagnostic molecules is increasingly receiving attention due to the enhanced efficiency provided by these systems. Understanding the structures of nanocarriers is crucial in elucidating their physical and chemical properties, which greatly influence their behavior in the body at both the molecular and systemic levels. This review was conducted to describe the principles and characteristics of techniques commonly used to elucidate the structures of nanocarriers, with consideration of their size, morphology, surface charge, porosity, crystalline arrangement, and phase. These techniques include X-ray diffraction, small-angle X-ray scattering, dynamic light scattering, zeta potential, polarized light microscopy, transmission electron microscopy, scanning electron microcopy, and porosimetry. Moreover, we describe some of the commonly used nanocarriers (liquid crystals, metal-organic frameworks, silica nanospheres, liposomes, solid lipid nanoparticles, and micelles) and the main aspects of their structures.
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Affiliation(s)
- Eloísa Berbel Manaia
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Marina Paiva Abuçafy
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Bruna Galdorfini Chiari-Andréo
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
- Department of Biological and Health Sciences, Centro Universitário de Araraquara, UNIARA, Araraquara, SP, Brazil
| | - Bruna Lallo Silva
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - João Augusto Oshiro Junior
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Leila Aparecida Chiavacci
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
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22
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Theranostic Liposome-Nanoparticle Hybrids for Drug Delivery and Bioimaging. Int J Mol Sci 2017; 18:ijms18071415. [PMID: 28671589 PMCID: PMC5535907 DOI: 10.3390/ijms18071415] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 06/24/2017] [Accepted: 06/26/2017] [Indexed: 12/04/2022] Open
Abstract
Advanced theranostic nanomedicine is a multifunctional approach which combines the diagnosis and effective therapy of diseased tissues. Here, we investigated the preparation, characterization and in vitro evaluation of theranostic liposomes. As is known, liposome–quantum dot (L–QD) hybrid vesicles are promising nanoconstructs for cell imaging and liposomal-topotecan (L-TPT) enhances the efficiency of TPT by providing protection against systemic clearance and allowing extended time for it to accumulate in tumors. In the present study, hydrophobic CdSe/ZnS QD and TPT were located in the bilayer membrane and inner core of liposomes, respectively. Dynamic light scattering (DLS), zeta potential (ζ) measurements and fluorescence/absorption spectroscopy were performed to determine the vesicle size, charge and spectroscopic properties of the liposomes. Moreover, drug release was studied under neutral and acidic pH conditions. Fluorescence microscopy and flow cytometry analysis were used to examine the cellular uptake and intracellular distribution of the TPT-loaded L–QD formulation. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was utilized to investigate the in vitro cytotoxicity of the formulations on HeLa cells. According to the results, the TPT-loaded L–QD hybrid has adequate physicochemical properties and is a promising multifunctional delivery vehicle which is capable of a simultaneous co-delivery of therapeutic and diagnostic agents.
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23
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Affiliation(s)
- Vineeth M. Vijayan
- Polymer Science Division, BMT Wing; Sree Chitra Tirunal Institute for Medical Sciences and Technology; Thiruvananthapuram 695012 Kerala India
| | - Jayabalalan Muthu
- Polymer Science Division, BMT Wing; Sree Chitra Tirunal Institute for Medical Sciences and Technology; Thiruvananthapuram 695012 Kerala India
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24
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Aizik G, Waiskopf N, Agbaria M, Levi-Kalisman Y, Banin U, Golomb G. Delivery of Liposomal Quantum Dots via Monocytes for Imaging of Inflamed Tissue. ACS NANO 2017; 11:3038-3051. [PMID: 28196324 DOI: 10.1021/acsnano.7b00016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Quantum dots (QDs), semiconductor nanocrystals, are fluorescent nanoparticles of growing interest as an imaging tool of a diseased tissue. However, a major concern is their biocompatibility, cytotoxicity, and fluorescence instability in biological milieu, impeding their use in biomedical applications, in general, and for inflammation imaging, in particular. In addition, for an efficient fluorescent signal at the desired tissue, and avoiding systemic biodistribution and possible toxicity, targeting is desired. We hypothesized that phagocytic cells of the innate immunity system (mainly circulating monocytes) can be exploited as transporters of specially designed liposomes containing QDs to the inflamed tissue. We developed a liposomal delivery system of QDs (LipQDs) characterized with high encapsulation yield, enhanced optical properties including far-red emission wavelength and fluorescent stability, high quantum yield, and protracted fluorescent decay lifetime. Treatment with LipQDs, rather than free QDs, exhibited high accumulation and retention following intravenous administration in carotid-injured rats (an inflammatory model). QD-monocyte colocalization was detected in the inflamed arterial segment only following treatment with LipQDs. No cytotoxicity was observed following LipQD treatment in cell cultures, and changes in liver enzymes and gross histopathological changes were not detected in mice and rats, respectively. Our results suggest that the LipQD formulation could be a promising strategy for imaging inflammation.
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Affiliation(s)
- Gil Aizik
- Institute for Drug Research, Faculty of Medicine, ‡Institute of Chemistry and the §Institute for Life Sciences, Faculty of Life Sciences, and ∥The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 9112001, Israel
| | - Nir Waiskopf
- Institute for Drug Research, Faculty of Medicine, ‡Institute of Chemistry and the §Institute for Life Sciences, Faculty of Life Sciences, and ∥The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 9112001, Israel
| | - Majd Agbaria
- Institute for Drug Research, Faculty of Medicine, ‡Institute of Chemistry and the §Institute for Life Sciences, Faculty of Life Sciences, and ∥The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 9112001, Israel
| | - Yael Levi-Kalisman
- Institute for Drug Research, Faculty of Medicine, ‡Institute of Chemistry and the §Institute for Life Sciences, Faculty of Life Sciences, and ∥The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 9112001, Israel
| | - Uri Banin
- Institute for Drug Research, Faculty of Medicine, ‡Institute of Chemistry and the §Institute for Life Sciences, Faculty of Life Sciences, and ∥The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 9112001, Israel
| | - Gershon Golomb
- Institute for Drug Research, Faculty of Medicine, ‡Institute of Chemistry and the §Institute for Life Sciences, Faculty of Life Sciences, and ∥The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 9112001, Israel
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25
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Huang H, Lovell JF. Advanced Functional Nanomaterials for Theranostics. ADVANCED FUNCTIONAL MATERIALS 2017; 27:1603524. [PMID: 28824357 PMCID: PMC5560626 DOI: 10.1002/adfm.201603524] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Nanoscale materials have been explored extensively as agents for therapeutic and diagnostic (i.e. theranostic) applications. Research efforts have shifted from exploring new materials in vitro to designing materials that function in more relevant animal disease models, thereby increasing potential for clinical translation. Current interests include non-invasive imaging of diseases, biomarkers and targeted delivery of therapeutic drugs. Here, we discuss some general design considerations of advanced theranostic materials and challenges of their use, from both diagnostic and therapeutic perspectives. Common classes of nanoscale biomaterials, including magnetic nanoparticles, quantum dots, upconversion nanoparticles, mesoporous silica nanoparticles, carbon-based nanoparticles and organic dye-based nanoparticles, have demonstrated potential for both diagnosis and therapy. Variations such as size control and surface modifications can modulate biocompatibility and interactions with target tissues. The needs for improved disease detection and enhanced chemotherapeutic treatments, together with realistic considerations for clinically translatable nanomaterials will be key driving factors for theranostic agent research in the near future.
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Affiliation(s)
- Haoyuan Huang
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York, 14260, United States
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York, 14260, United States
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Vieira DB, Gamarra LF. Getting into the brain: liposome-based strategies for effective drug delivery across the blood-brain barrier. Int J Nanomedicine 2016; 11:5381-5414. [PMID: 27799765 PMCID: PMC5077137 DOI: 10.2147/ijn.s117210] [Citation(s) in RCA: 249] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This review summarizes articles that have been reported in literature on liposome-based strategies for effective drug delivery across the blood–brain barrier. Due to their unique physicochemical characteristics, liposomes have been widely investigated for their application in drug delivery and in vivo bioimaging for the treatment and/or diagnosis of neurological diseases, such as Alzheimer’s, Parkinson’s, stroke, and glioma. Several strategies have been used to deliver drug and/or imaging agents to the brain. Covalent ligation of such macromolecules as peptides, antibodies, and RNA aptamers is an effective method for receptor-targeting liposomes, which allows their blood–brain barrier penetration and/or the delivery of their therapeutic molecule specifically to the disease site. Additionally, methods have been employed for the development of liposomes that can respond to external stimuli. It can be concluded that the development of liposomes for brain delivery is still in its infancy, although these systems have the potential to revolutionize the ways in which medicine is administered.
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Affiliation(s)
| | - Lionel F Gamarra
- Hospital Israelita Albert Einstein, São Paulo, Brazil; Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brazil
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27
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Chang LW, Hou ML, Hung SH, Lin LC, Tsai TH. Pharmacokinetics of quercetin-loaded nanodroplets with ultrasound activation and their use for bioimaging. Int J Nanomedicine 2015; 10:3031-42. [PMID: 25945049 PMCID: PMC4407821 DOI: 10.2147/ijn.s78983] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Bubble formulations have both diagnostic and therapeutic applications. However, research on nanobubbles/nanodroplets remains in the initial stages. In this study, a nanodroplet formulation was prepared and loaded with a novel class of chemotherapeutic drug, ie, quercetin, to observe its pharmacokinetic properties and ultrasonic bioimaging of specific sites, namely the abdominal vein and bladder. Four parallel groups were designed to investigate the effects of ultrasound and nanodroplets on the pharmacokinetics of quercetin. These groups were quercetin alone, quercetin triggered with ultrasound, quercetin-encapsulated in nanodroplets, and quercetin encapsulated in nanodroplets triggered with ultrasound. Spherical vesicles with a mean diameter of 280 nm were formed, and quercetin was completely encapsulated within. In vivo ultrasonic imaging confirmed that the nanodroplets could be treated by ultrasound. The results indicate that the initial 5-minute serum concentration, area under the concentration–time curve, elimination half-life, and clearance of quercetin were significantly enhanced by nanodroplets with or without ultrasound.
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Affiliation(s)
- Li-Wen Chang
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Mei-Ling Hou
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shuo-Hui Hung
- Department of Surgery, Ministry of Health and Welfare, Taipei, Taiwan
| | - Lie-Chwen Lin
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Tung-Hu Tsai
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan ; Department of Education and Research, Taipei City Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan ; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan ; Graduate Institute of Acupuncture Science, China Medical University, Taichung, Taiwan
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Abstract
Since their discovery in the 1960s, liposomes have been studied in depth, and they continue to constitute a field of intense research. Liposomes are valued for their biological and technological advantages, and are considered to be the most successful drug-carrier system known to date. Notable progress has been made, and several biomedical applications of liposomes are either in clinical trials, are about to be put on the market, or have already been approved for public use. In this review, we briefly analyze how the efficacy of liposomes depends on the nature of their components and their size, surface charge, and lipidic organization. Moreover, we discuss the influence of the physicochemical properties of liposomes on their interaction with cells, half-life, ability to enter tissues, and final fate in vivo. Finally, we describe some strategies developed to overcome limitations of the “first-generation” liposomes, and liposome-based drugs on the market and in clinical trials.
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Affiliation(s)
- Giuseppina Bozzuto
- Chemical Methodology Institute, CNR, Rome, Italy ; Department of Technology and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Agnese Molinari
- Department of Technology and Health, Istituto Superiore di Sanità, Rome, Italy
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29
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Multifunctional, stimuli-sensitive nanoparticulate systems for drug delivery. Nat Rev Drug Discov 2014; 13:813-27. [PMID: 25287120 DOI: 10.1038/nrd4333] [Citation(s) in RCA: 1009] [Impact Index Per Article: 100.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The use of nanoparticulate pharmaceutical drug delivery systems (NDDSs) to enhance the in vivo effectiveness of drugs is now well established. The development of multifunctional and stimulus-sensitive NDDSs is an active area of current research. Such NDDSs can have long circulation times, target the site of the disease and enhance the intracellular delivery of a drug. This type of NDDS can also respond to local stimuli that are characteristic of the pathological site by, for example, releasing an entrapped drug or shedding a protective coating, thus facilitating the interaction between drug-loaded nanocarriers and target cells or tissues. In addition, imaging contrast moieties can be attached to these carriers to track their real-time biodistribution and accumulation in target cells or tissues. Here, I highlight recent developments with multifunctional and stimuli-sensitive NDDSs and their therapeutic potential for diseases including cancer, cardiovascular diseases and infectious diseases.
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Abstract
The use of nanoparticulate pharmaceutical drug delivery systems (NDDSs) to enhance the in vivo effectiveness of drugs is now well established. The development of multifunctional and stimulus-sensitive NDDSs is an active area of current research. Such NDDSs can have long circulation times, target the site of the disease and enhance the intracellular delivery of a drug. This type of NDDS can also respond to local stimuli that are characteristic of the pathological site by, for example, releasing an entrapped drug or shedding a protective coating, thus facilitating the interaction between drug-loaded nanocarriers and target cells or tissues. In addition, imaging contrast moieties can be attached to these carriers to track their real-time biodistribution and accumulation in target cells or tissues. Here, I highlight recent developments with multifunctional and stimuli-sensitive NDDSs and their therapeutic potential for diseases including cancer, cardiovascular diseases and infectious diseases.
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31
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Zhu Y, Hong H, Xu ZP, Li Z, Cai W. Quantum dot-based nanoprobes for in vivo targeted imaging. Curr Mol Med 2014; 13:1549-67. [PMID: 24206136 DOI: 10.2174/1566524013666131111121733] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 05/30/2013] [Accepted: 10/02/2013] [Indexed: 02/06/2023]
Abstract
Fluorescent semiconductor quantum dots (QDs) have attracted tremendous attention over the last decade. The superior optical properties of QDs over conventional organic dyes make them attractive labels for a wide variety of biomedical applications, whereas their potential toxicity and instability in biological environment have puzzled scientific researchers. Much research effort has been devoted to surface modification and functionalization of QDs to make them versatile probes for biomedical applications, and significant progress has been made over the last several years. This review article aims to describe the current state-of-the-art of the synthesis, modification, bioconjugation, and applications of QDs for in vivo targeted imaging. In addition, QD-based multifunctional nanoprobes are also summarized.
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Affiliation(s)
- Y Zhu
- (W. Cai) Departments of Radiology and Medical Physics, University of Wisconsin - Madison, Room 7137, 1111 Highland Avenue, Madison, WI 53705-2275, USA.
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Muthu MS, Leong DT, Mei L, Feng SS. Nanotheranostics - application and further development of nanomedicine strategies for advanced theranostics. Am J Cancer Res 2014; 4:660-77. [PMID: 24723986 PMCID: PMC3982135 DOI: 10.7150/thno.8698] [Citation(s) in RCA: 352] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 03/11/2014] [Indexed: 12/16/2022] Open
Abstract
Nanotheranostics is to apply and further develop nanomedicine strategies for advanced theranostics. This review summarizes the various nanocarriers developed so far in the literature for nanotheranostics, which include polymer conjugations, dendrimers, micelles, liposomes, metal and inorganic nanoparticles, carbon nanotubes, and nanoparticles of biodegradable polymers for sustained, controlled and targeted co-delivery of diagnostic and therapeutic agents for better theranostic effects with fewer side effects. The theranostic nanomedicine can achieve systemic circulation, evade host defenses and deliver the drug and diagnostic agents at the targeted site to diagnose and treat the disease at cellular and molecular level. The therapeutic and diagnostic agents are formulated in nanomedicine as a single theranostic platform, which can then be further conjugated to biological ligand for targeting. Nanotheranostics can also promote stimuli-responsive release, synergetic and combinatory therapy, siRNA co-delivery, multimodality therapies, oral delivery, delivery across the blood-brain barrier as well as escape from intracellular autophagy. The fruition of nanotheranostics will be able to provide personalized therapy with bright prognosis, which makes even the fatal diseases curable or at least treatable at the earliest stage.
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Grabtchak S, Callaghan KB, Whelan WM. Tagging photons with gold nanoparticles as localized absorbers in optical measurements in turbid media. BIOMEDICAL OPTICS EXPRESS 2013; 4:2989-3006. [PMID: 24409396 PMCID: PMC3862156 DOI: 10.1364/boe.4.002989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/19/2013] [Accepted: 11/21/2013] [Indexed: 06/03/2023]
Abstract
We analyze a role of a localized inclusion as a probe for spatial distributions of migrating photons in turbid media. We present new experimental data and two-dimensional analysis of radiance detection of a localized absorptive inclusion formed by gold nanoparticles in Intralipid-1% when the target is translated along the line connecting the light source and detector. Data are analyzed using the novel analytical expression for the relative angular photon distribution function for radiance developed by extending the perturbation approach for fluence. Obtained photon maps allow predicting conditions for detectability of inclusions for which proximity to the detector is essential.
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Affiliation(s)
- Serge Grabtchak
- Department of Physics, University of Prince Edward Island, Charlottetown, PEI C1A4P3, Canada
- Departments of Electrical and Computer Engineering, and Physics, Dalhousie University, Halifax, NS B3H3J5, Canada
| | - Kristen B. Callaghan
- Department of Physics, University of Prince Edward Island, Charlottetown, PEI C1A4P3, Canada
| | - William M. Whelan
- Department of Physics, University of Prince Edward Island, Charlottetown, PEI C1A4P3, Canada
- Atlantic Veterinary College, Charlottetown, PEI C1A4P3, Canada
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34
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Abbott NJ. Blood-brain barrier structure and function and the challenges for CNS drug delivery. J Inherit Metab Dis 2013; 36:437-49. [PMID: 23609350 DOI: 10.1007/s10545-013-9608-0] [Citation(s) in RCA: 557] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 04/02/2013] [Accepted: 04/03/2013] [Indexed: 12/12/2022]
Abstract
The neurons of the central nervous system (CNS) require precise control of their bathing microenvironment for optimal function, and an important element in this control is the blood-brain barrier (BBB). The BBB is formed by the endothelial cells lining the brain microvessels, under the inductive influence of neighbouring cell types within the 'neurovascular unit' (NVU) including astrocytes and pericytes. The endothelium forms the major interface between the blood and the CNS, and by a combination of low passive permeability and presence of specific transport systems, enzymes and receptors regulates molecular and cellular traffic across the barrier layer. A number of methods and models are available for examining BBB permeation in vivo and in vitro, and can give valuable information on the mechanisms by which therapeutic agents and constructs permeate, ways to optimize permeation, and implications for drug discovery, delivery and toxicity. For treating lysosomal storage diseases (LSDs), models can be included that mimic aspects of the disease, including genetically-modified animals, and in vitro models can be used to examine the effects of cells of the NVU on the BBB under pathological conditions. For testing CNS drug delivery, several in vitro models now provide reliable prediction of penetration of drugs including large molecules and artificial constructs with promising potential in treating LSDs. For many of these diseases it is still not clear how best to deliver appropriate drugs to the CNS, and a concerted approach using a variety of models and methods can give critical insights and indicate practical solutions.
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Affiliation(s)
- N Joan Abbott
- BBB Group, Institute of Pharmaceutical Science, King's College London, London, UK.
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35
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Ramli M, Hussein MZ, Yusoff K. Preparation and characterization of an anti-inflammatory agent based on a zinc-layered hydroxide-salicylate nanohybrid and its effect on viability of Vero-3 cells. Int J Nanomedicine 2013; 8:297-306. [PMID: 23345976 PMCID: PMC3551460 DOI: 10.2147/ijn.s38858] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A new organic-inorganic nanohybrid based on zinc-layered hydroxide intercalated with an anti-inflammatory agent was synthesized through direct reaction of salicylic acid at various concentrations with commercially available zinc oxide. The basal spacing of the pure phase nanohybrid was 15.73 Å, with the salicylate anions arranged in a monolayer form and an angle of 57 degrees between the zinc-layered hydroxide interlayers. Fourier transform infrared study further confirmed intercalation of salicylate into the interlayers of zinc-layered hydroxide. The loading of salicylate in the nanohybrid was estimated to be around 29.66%, and the nanohybrid exhibited the properties of a mesoporous-type material, with greatly enhanced thermal stability of the salicylate compared with its free counterpart. In vitro cytotoxicity assay revealed that free salicylic acid, pure zinc oxide, and the nanohybrid have a mild effect on viability of African green monkey kidney (Vero-3) cells.
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Affiliation(s)
- Munirah Ramli
- Advanced Materials and Nanotechnology Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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