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Recent Advances in Gold Nanomaterials for Photothermal Therapy 光热治疗用金纳米材料的研究进展
Pub Date : 2022-06-01 DOI: 10.3390/jnt3020008
Y. Chuang, Hsin-Lun Lee, J. Chiou, L. Lo
Gold nanoparticle (AuNPs)-mediated photothermal therapy (PTT) has attracted increasing attention both in laboratory research and clinical applications. Due to its easily-tuned properties of irradiation light and inside-out hyperthermia ability, it has demonstrated clear advantages in cancer therapy over conventional thermal ablation. Despite this great advancement, the therapeutic efficacy of AuNPs mediated PTT in tumor treatment remains compromised by several obstacles, including low photothermal conversion efficiency, tissue penetration limitation of excitation light, and inherent non-specificity. In view of the rapid development of AuNPs mediated PTT, we present an in-depth review of major breakthroughs in the advanced development of gold nanomaterials for PTT, with emphasis on those from 2010 to date. In particular, the current state of knowledge for AuNPs based photothermal agents within a paradigm of key structure-optical property relationships is presented in order to provide guidance for the design of novel AuNP based photothermal agents to meet necessary functional requirements in specific applications. Furthermore, potential challenges and future development of AuNP mediated PTT are also elucidated for clinical translation. It is expected that AuNP mediated PTT will soon constitute a markedly promising avenue in the treatment of cancer.
金纳米粒子介导的光热治疗(PTT)在实验室研究和临床应用中引起了越来越多的关注。由于其易于调节的辐照光特性和内-外热疗能力,它在癌症治疗中表现出了优于传统热消融的明显优势。尽管取得了这一巨大进展,AuNPs介导的PTT在肿瘤治疗中的治疗效果仍然受到几个障碍的影响,包括光热转换效率低、激发光的组织穿透限制和固有的非特异性。鉴于AuNPs介导的PTT的快速发展,我们对用于PTT的金纳米材料的先进开发的重大突破进行了深入回顾,重点是2010年至今的突破。特别是,在关键结构-光学性质关系的范式中,介绍了基于AuNP的光热剂的当前知识状态,以便为设计新的基于AuNPs的光热剂提供指导,以满足特定应用中的必要功能要求。此外,还阐明了AuNP介导的PTT在临床翻译方面的潜在挑战和未来发展。预计AuNP介导的PTT将很快成为治疗癌症的一种非常有前途的途径。
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引用次数: 10
Simultaneous Thermal and Spectroscopic Screening of Morphologically Complex Theranostic Gold Nanoparticles 形貌复杂Theranostic金纳米粒子的同时热筛选和光谱筛选
Pub Date : 2022-05-26 DOI: 10.3390/jnt3020007
S. Chavva, Namratha Bhat, A. M. T. San Juan, Siddhant Jaitpal, S. Mabbott
Gold nanoparticles absorb light energy and convert it to thermal energy that transfers to the surrounding environment, making them potentially useful for the hyperthermic treatments well known as photothermal therapy (PTT). Further, it is well documented that noble metal nanoparticles are capable of significantly enhancing the Raman scattering of molecules attached to their surfaces, a technique which is termed surface-enhanced Raman scattering (SERS). SERS combined with PTT has the ability to locate nanoparticles at depth and trigger heat production, providing an effective methodology to both seek and destroy diseased tissues. While PTT and SERS are often used in tandem and there are several ways of individually measuring SERS and thermal output, there is currently no method available that pre-screens both properties prior to in vitro or in vivo application. In this work, we have designed a 3D printed platform capable of coupling a commercially available Raman probe to a sample cuvette for SERS and heat output to be monitored simultaneously. We have compared the performance of morphologically complex gold nanoparticles, nanostars (AuNSs) and nanoplates (AuNPLs), which are both well utilized in SERS and photothermal experiments; and measured the SERS activity originating from common Raman reporter analytes 4-mercaptobenzoic acid (MBA) and 1,4-benzenedithiol (BDT). We were able to show that the system effectively measures the thermal output and SERS activity of the particles and can evaluate the effect that multiple irradiation cycles have on the SERS signal.
金纳米颗粒吸收光能并将其转化为热能,然后转移到周围环境中,使其有可能用于众所周知的光热治疗(PTT)。此外,有充分的证据表明,贵金属纳米颗粒能够显著增强附着在其表面的分子的拉曼散射,这一技术被称为表面增强拉曼散射(SERS)。SERS与PTT相结合能够在深度定位纳米颗粒并引发热量产生,为寻找和摧毁病变组织提供了一种有效的方法。虽然PTT和SERS通常串联使用,并且有几种单独测量SERS和热输出的方法,但目前还没有可用的方法在体外或体内应用之前预先筛选这两种性质。在这项工作中,我们设计了一个3D打印平台,该平台能够将商用拉曼探针耦合到样品比色皿上,以同时监测SERS和热输出。我们比较了形态复杂的金纳米颗粒、纳米星(AuNSs)和纳米板(AuNPL)的性能,它们都在SERS和光热实验中得到了很好的利用;并测量源自常见拉曼报告分析物4-巯基苯甲酸(MBA)和1,4-苯二硫醇(BDT)的SERS活性。我们能够证明,该系统有效地测量了颗粒的热输出和SERS活性,并可以评估多次辐照循环对SERS信号的影响。
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引用次数: 1
Lipid Nanoparticles as Platforms for Theranostic Purposes: Recent Advances in the Field 脂质纳米颗粒作为治疗目的的平台:该领域的最新进展
Pub Date : 2022-05-05 DOI: 10.3390/jnt3020006
N. Naziris, C. Demetzos
Lipid nanoparticles (LNPs) are the first approved nanomedicines and the most well-studied class of nanocarriers for drug delivery. Currently, they are in the frontline of the pandemic fight as vaccine formulations and therapeutic products. However, even though they are so well-studied, new materials and new modifications arise every day that can improve their properties. Their dynamic nature, especially the liquid crystal state of membranes, is under constant investigation and it is that which many times leads to their complex biological behavior. In addition, newly discovered biomaterials and nanoparticles that possess promising effects and functionalities, but also toxicity and/or poor pharmacokinetics, can be combined with LNPs to ameliorate their properties. As a result, many promising theranostic applications have emerged during the past decade, proving the huge potential of LNPs in the field. In the present review, we summarize some of the most prominent classes of LNPs for nanotheranostic purposes, and present state-of-the-art research examples, with emphasis on the utilized biomaterials and the functionality that they confer to the resultant supramolecular nanosystems, in relation to diagnostic and therapeutic modalities. Although there has been unprecedented progress in theranostics, the translational gap between the bench and the clinic is undeniable. This issue must be addressed by experts in a coordinated way, in order to fully exploit these nanomedicines for the benefit of the society.
脂质纳米颗粒(LNPs)是最早被批准的纳米药物,也是研究最深入的一类用于药物递送的纳米载体。目前,它们作为疫苗配方和治疗产品处于抗击疫情的前线。然而,尽管它们得到了很好的研究,但每天都会出现新的材料和新的改性,可以改善它们的性能。它们的动力学性质,特别是膜的液晶状态,一直在研究中,正是这种性质导致了它们复杂的生物行为。此外,新发现的生物材料和纳米颗粒具有良好的效果和功能,但也具有毒性和/或较差的药代动力学,可以与LNP结合以改善其性能。因此,在过去的十年里,出现了许多有前景的治疗应用,证明了LNP在该领域的巨大潜力。在本综述中,我们总结了用于纳米治疗目的的一些最突出的LNP类别,并介绍了最先进的研究实例,重点是所使用的生物材料及其赋予所产生的超分子纳米系统的与诊断和治疗模式相关的功能。尽管在治疗学方面取得了前所未有的进展,但临床和临床之间的转化差距是不可否认的。专家们必须以协调一致的方式解决这个问题,以便充分利用这些纳米药物造福社会。
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引用次数: 3
Exosomes for Regulation of Immune Responses and Immunotherapy 调节免疫反应和免疫治疗的外泌体
Pub Date : 2022-03-16 DOI: 10.3390/jnt3010005
Md Walid Akram Hussain, Sarah Jahangir, Bikona Ghosh, F. Yesmin, Afnan Anis, Sabikun Nahar Satil, Faizan Anwar, M. Rashid
Exosomes are membrane-enveloped nanosized (30–150 nm) extracellular vesicles of endosomal origin produced by almost all cell types and encompass a multitude of functioning biomolecules. Exosomes have been considered crucial players of cell-to-cell communication in physiological and pathological conditions. Accumulating evidence suggests that exosomes can modulate the immune system by delivering a plethora of signals that can either stimulate or suppress immune responses, which have potential applications as immunotherapies for cancer and autoimmune diseases. Here, we discuss the current knowledge about the active biomolecular components of exosomes that contribute to exosomal function in modulating different immune cells and also how these immune cell-derived exosomes play critical roles in immune responses. We further discuss the translational potential of engineered exosomes as immunotherapeutic agents with their advantages over conventional nanocarriers for drug delivery and ongoing clinical trials.
外泌体是由几乎所有细胞类型产生的内泌体来源的膜包裹的纳米(30-150 nm)细胞外小泡,包含大量功能性生物分子。外泌体被认为是生理和病理条件下细胞间通讯的关键参与者。越来越多的证据表明,外泌体可以通过传递大量信号来调节免疫系统,这些信号可以刺激或抑制免疫反应,这些信号作为癌症和自身免疫疾病的免疫疗法具有潜在的应用前景。在这里,我们讨论了外泌体的活性生物分子成分的当前知识,这些成分有助于外泌体在调节不同免疫细胞中的功能,以及这些免疫细胞衍生的外泌体如何在免疫反应中发挥关键作用。我们进一步讨论了工程外泌体作为免疫治疗剂的转化潜力,以及它们在药物递送和正在进行的临床试验中相对于传统纳米载体的优势。
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引用次数: 11
Implantable Devices for the Treatment of Breast Cancer. 用于治疗乳腺癌的植入式装置。
Pub Date : 2022-03-01 DOI: 10.3390/jnt3010003
Mohammad Mohtasim Hamid Pial, Asahi Tomitaka, Nezih Pala, Upal Roy

Breast cancer is one of the leading causes of death in the female population worldwide. Standard treatments such as chemotherapy show noticeable results. However, along with killing cancer cells, it causes systemic toxicity and apoptosis of the nearby healthy cells, therefore patients must endure side effects during the treatment process. Implantable drug delivery devices that enhance therapeutic efficacy by allowing localized therapy with programmed or controlled drug release can overcome the shortcomings of conventional treatments. An implantable device can be composed of biopolymer materials, nanocomposite materials, or a combination of both. This review summarizes the recent research and current state-of-the art in these types of implantable devices and gives perspective for future directions.

乳腺癌是全世界女性死亡的主要原因之一。标准治疗如化疗效果显著。然而,在杀死癌细胞的同时,它会引起全身毒性和附近健康细胞的凋亡,因此患者在治疗过程中必须忍受副作用。植入式药物输送装置通过程序化或控制药物释放的局部治疗来提高治疗效果,可以克服传统治疗的缺点。植入式装置可以由生物聚合物材料、纳米复合材料或两者的组合组成。本文综述了这类植入式装置的最新研究和现状,并对未来的发展方向进行了展望。
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引用次数: 1
In Silico, Combined Plasmonic Photothermal and Photodynamic Therapy in Mice 等离子体光热和光动力联合治疗小鼠的实验研究
Pub Date : 2022-02-28 DOI: 10.3390/jnt3010004
G. Kareliotis, Eleni Chronopoulou, M. Makropoulou
Plasmonic photothermal and photodynamic therapy (PPTT and PDT, respectively) are two cancer treatments that have the potential to be combined in a synergistic scheme. The aim of this study is to optimize the PPTT treatment part, in order to account for the PDT lack of coverage in the hypoxic tumor volume and in cancer areas laying in deep sites. For the needs of this study, a mouse was modeled, subjected to PDT and its necrotic area was estimated by using the MATLAB software. The same procedure was repeated for PPTT, using COMSOL Multiphysics. PPTT treatment parameters, namely laser power and irradiation time, were optimized in order to achieve the optimum therapeutic effect of the combined scheme. The PDT alone resulted in 54.8% tumor necrosis, covering the upper cancer layers. When the PPTT was also applied, the total necrosis percentage raised up to 99.3%, while all of the surrounding studied organs (skin, heart, lungs and trachea, ribs, liver and spleen) were spared. The optimized values of the PPTT parameters were 550 mW of laser power and 70 s of irradiation time. Hence, the PPTT–PDT combination shows great potential in achieving high levels of tumor necrosis while sparing the healthy tissues.
等离子体光热疗法和光动力疗法(分别为PPTT和PDT)是两种癌症治疗方法,有可能以协同方案相结合。本研究的目的是优化PPTT治疗部分,以解释PDT在缺氧肿瘤体积和癌症深部区域的覆盖不足。为了本研究的需要,对小鼠进行建模,进行PDT,并使用MATLAB软件估计其坏死面积。使用COMSOL Multiphysics对PPTT重复相同的程序。优化PPTT治疗参数,即激光功率和照射时间,以达到联合方案的最佳治疗效果。单独的PDT导致54.8%的肿瘤坏死,覆盖癌症上层。当还应用PPTT时,总坏死率提高到99.3%,而周围所有研究器官(皮肤、心脏、肺和气管、肋骨、肝脏和脾脏)都得以保留。PPTT参数的优化值为550mW的激光功率和70s的照射时间。因此,PPTT–PDT组合在保护健康组织的同时,在实现高水平肿瘤坏死方面显示出巨大的潜力。
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引用次数: 2
Acknowledgment to the Reviewers of the Journal of Nanotheranostics in 2021 感谢《纳米肿瘤学杂志》2021年审稿人
Pub Date : 2022-02-02 DOI: 10.3390/jnt3010002
Rigorous peer reviews are the basis of high-quality academic publishing [...]
严格的同行评议是高质量学术出版的基础[…]
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引用次数: 0
Hybrid Nanoparticles as Theranostics Platforms for Glioblastoma Treatment: Phototherapeutic and X-ray Phase Contrast Tomography Investigations 混合纳米粒子作为治疗胶质母细胞瘤的Theranos平台:光治疗和X射线相位对比断层扫描研究
Pub Date : 2022-01-20 DOI: 10.3390/jnt3010001
Loredana Ricciardi, S. Chatterjee, G. Palermo, Elisabeta I. Szerb, A. Sanna, F. Palermo, N. Pieroni, M. Fratini, R. Bartolino, A. Cedola, Massimo La Deda, G. Strangi
Glioblastoma multiforme (GBM) is one of the deadliest and most aggressive cancers, remarkably resilient to current therapeutic treatments. Here, we report preliminary in vivo studies of GBM treatments based on photo-nanotherapeutics to activate synergistic killing mechanisms. Core-shell nanoparticles have been weaponized by combining photophysical properties of a new generation PDT agent (Ir(III) complex) with the thermoplasmonic effects of resonant gold nanospheres. In order to investigate the damages induced in GBM treated with these photoactivable nanosystems, we employed X-ray phase-contrast tomography (XPCT). This high-resolution three-dimensional imaging technique highlighted a vast devascularization process by micro-vessels disruption, which is indicative of tumor elimination without relapse.
多形性胶质母细胞瘤(GBM)是最致命、最具侵袭性的癌症之一,对目前的治疗具有显著的抵抗力。在此,我们报道了基于光纳米疗法的GBM治疗的初步体内研究,以激活协同杀伤机制。通过将新一代PDT试剂(Ir(III)络合物)的光物理性质与共振金纳米球的热等离子体效应相结合,核壳纳米颗粒已被武器化。为了研究用这些光活性纳米系统处理的GBM引起的损伤,我们采用了X射线相位对比断层扫描(XPCT)。这种高分辨率的三维成像技术突出了微血管破裂造成的巨大血管断流过程,这表明肿瘤消除而不会复发。
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引用次数: 0
The Nanotheranostic Researcher’s Guide for Use of Animal Models of Traumatic Brain Injury 纳米技术研究人员使用创伤性脑损伤动物模型指南
Pub Date : 2021-12-01 DOI: 10.3390/jnt2040014
Brandon Z. McDonald, Connor C. Gee, Forrest M. Kievit
Traumatic brain injury (TBI) is currently the leading cause of injury-related morbidity and mortality worldwide, with an estimated global cost of USD 400 billion annually. Both clinical and preclinical behavioral outcomes associated with TBI are heterogeneous in nature and influenced by the mechanism and frequency of injury. Previous literature has investigated this relationship through the development of animal models and behavioral tasks. However, recent advancements in these methods may provide insight into the translation of therapeutics into a clinical setting. In this review, we characterize various animal models and behavioral tasks to provide guidelines for evaluating the therapeutic efficacy of treatment options in TBI. We provide a brief review into the systems utilized in TBI classification and provide comparisons to the animal models that have been developed. In addition, we discuss the role of behavioral tasks in evaluating outcomes associated with TBI. Our goal is to provide those in the nanotheranostic field a guide for selecting an adequate TBI animal model and behavioral task for assessment of outcomes to increase research in this field.
创伤性脑损伤(TBI)目前是全球与损伤相关的发病率和死亡率的主要原因,估计全球每年的成本为4000亿美元。与TBI相关的临床和临床前行为结果本质上是异质的,并受到损伤机制和频率的影响。先前的文献已经通过动物模型和行为任务的发展来研究这种关系。然而,这些方法的最新进展可能会为将治疗方法转化为临床环境提供见解。在这篇综述中,我们描述了各种动物模型和行为任务,为评估TBI治疗方案的疗效提供了指导。我们对TBI分类中使用的系统进行了简要回顾,并与已经开发的动物模型进行了比较。此外,我们还讨论了行为任务在评估TBI相关结果中的作用。我们的目标是为纳米治疗领域的研究人员提供一份指南,指导他们选择合适的TBI动物模型和行为任务来评估结果,以增加该领域的研究。
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引用次数: 3
Prospects of Extracellular Vesicles in Otorhinolaryngology, Head and Neck Surgery 细胞外囊泡在耳鼻咽喉头颈外科的应用前景
Pub Date : 2021-11-28 DOI: 10.3390/jnt2040013
Metka Sluga, S. Battelino, Domen Vozel
The diagnostic and therapeutic potential of extracellular vesicles (EVs) has been recognised in many fields of medicine for several years. More recently, it has become a topic of increasing interest in otorhinolaryngology, head and neck surgery (ORL-HNS). With this narrative review, we have aspired to determine different aspects of those nanometrically sized theranostic particles, which seem to have promising potential as biomarkers in some of the most common diseases of the ORL-HNS by being available via less invasive diagnostic methods. At the same time, a better understanding of their activity provides us with new possibilities for developing specific target treatments. So far, most research has been oriented towards the role of EVs in the progression of head and neck cancer, notably head and neck squamous cell cancer. Nonetheless, some of this research has focused on chronic diseases of the ears, nose and paranasal sinuses. However, most research is still in the preclinical or experimental phase. It therefore requires a further and more profound understanding of EV content and behaviour to utilise their nanotheranostic capacities to their fullest potential.
细胞外小泡(EVs)的诊断和治疗潜力多年来已在许多医学领域得到认可。最近,它已经成为耳鼻喉科、头颈外科(ORL-HNS)越来越感兴趣的话题。通过这篇叙述性综述,我们渴望确定这些纳米大小的治疗颗粒的不同方面,通过侵入性较小的诊断方法,这些颗粒似乎有可能成为ORL-HNS一些最常见疾病的生物标志物。同时,更好地了解它们的活性为我们开发特定的靶向治疗方法提供了新的可能性。到目前为止,大多数研究都集中在EVs在头颈癌症进展中的作用,尤其是头颈部鳞状细胞癌症。尽管如此,一些研究还是集中在耳朵、鼻子和鼻窦的慢性疾病上。然而,大多数研究仍处于临床前或实验阶段。因此,需要对电动汽车的内容和行为有更深入的了解,才能充分利用其纳米治疗能力。
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引用次数: 0
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Journal of nanotheranostics
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