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photothermal therapy

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https://www.readbyqxmd.com/read/28819209/synergistic-immuno-photothermal-nanotherapy-symphony-for-the-treatment-of-unresectable-and-metastatic-cancers
#1
Yang Liu, Paolo Maccarini, Gregory M Palmer, Wiguins Etienne, Yulin Zhao, Chen-Ting Lee, Xiumei Ma, Brant A Inman, Tuan Vo-Dinh
Metastatic spread is the mechanism in more than 90 percent of cancer deaths and current therapeutic options, such as systemic chemotherapy, are often ineffective. Here we provide a proof of principle for a novel two-pronged modality referred to as Synergistic Immuno Photothermal Nanotherapy (SYMPHONY) having the potential to safely eradicate both primary tumors and distant metastatic foci. Using a combination of immune-checkpoint inhibition and plasmonic gold nanostar (GNS)-mediated photothermal therapy, we were able to achieve complete eradication of primary treated tumors and distant untreated tumors in some mice implanted with the MB49 bladder cancer cells...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28815986/modulatory-functionalization-of-gold-nanorods-using-supramolecular-assemblies
#2
Sundo Jeong, Hongrual Park, Dongmin Seon, Jongwan Choi, Ki Bum Hong, Jiseok Lee, Chaekyu Kim, Jung-Keun Kim, Myoung-Hwan Park
Supramolecular assembly-mediated functionalization of gold nanorods (GNRs) has been developed by reversible phase transfer between water and oils, which offers a facile method for fabricating stubborn GNRs with surface charge tunability. In this regard, TMA-GNRs were initially prepared from conventional CTAB-GNRs via a ligand exchange reaction in the presence of excess of TMA ligands. To further expand their functionality and potential applications, electrostatic assemblies of positively charged TMA-GNRs with negatively charged oleate ions were prepared...
August 17, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28810733/doxorubicin-and-indocyanine-green-loaded-hybrid-bicelles-for-fluorescence-imaging-guided-synergetic-chemo-photothermal-therapy
#3
Li Lin, Xiaolong Liang, Yunxue Xu, Yongbo Yang, Xiaoda Li, Zhifei Dai
Hybrid bicelles have been demonstrated to have great potential for hydrophobic drug delivery. Herein, we report a near-infrared light-driven, temperature-sensitive hybrid bicelles co-encapsulating hydrophobic doxorubicin (DOX) and indocyanine green (ICG) (DOX/ICG@HBs). Encapsulation of ICG into the lipid bilayer membrane of DOX/ICG@HBs results in higher photostability than free ICG. DOX/ICG@HBs exhibited temperature-regulated drug release behavior and significant photothermal cytotoxicity. After tail vein injection, such discotic nanoparticles of DOX/ICG@HBs were found to accumulate selectively at the tumor site and act as an efficient probe to enhance fluorescence imaging greatly...
August 15, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28809413/tumor-targeted-nanoprobes-for-enhanced-multimodal-imaging-and-synergistic-photothermal-therapy-core-shell-and-dumbbell-gd-tailored-gold-nanorods
#4
Jinchang Yin, Deqi Chen, Shuangshuang Wu, Chaorui Li, Lizhi Liu, Yuanzhi Shao
Multifunctional nanoprobes, due to their unique nanocomposite structures, have prominent advantages that combine multimodal imaging of a tumor with photothermal therapy. However, they remain a challenge for constructing nanostructures via conventional approaches due to the peculiar environmental sensitivity of each component. Here, we report the design and synthesis of Gd-based nanoparticle-tailored gold nanorods with distinctive core-shell and dumbbell nanoarchitectures (NAs) by a specific synthesis technology...
August 15, 2017: Nanoscale
https://www.readbyqxmd.com/read/28806660/fluorescent-carbon-dot-gated-hollow-mesoporous-carbon-for-chemo-photothermal-synergistic-therapy
#5
Xiudan Wang, Yuanzhe Lin, Xian Li, Da Wang, Donghua Di, Qinfu Zhao, Siling Wang
An efficient and intelligent nano-carrier that combines cell imaging with near infrared (NIR) light and redox dual-responsive drug delivery was successfully prepared. The hollow mesoporous carbon (HMC) nanoparticles with high photothermal conversion ability were developed to increase the drug loading efficiency and realize chemotherapy and photothermal synergetic therapy. The photo-stable and luminescent carbon dots (CDs) were prepared from branched polyethyleneimine (PEI) by hydrothermal reaction. The PEI CDs (CDPEI) were grafted on the openings of HMC as the "gatekeepers" via disulfide units (HMC-SS-CDPEI) to prevent the premature release of doxorubicin (DOX)...
August 4, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28806615/graphene-gold-based-nanocomposites-applications-in-cancer-diseases-efficient-detection-and-therapeutic-tools
#6
REVIEW
Lina A Al-Ani, Mohammed A AlSaadi, Farkaad A Kadir, Najihah M Hashim, Nurhidayatullaili M Julkapli, Wageeh A Yehye
Early detection and efficient treatment of cancer disease remains a drastic challenge in 21st century. Throughout the bulk of funds, studies, and current therapeutics, cancer seems to aggressively advance with drug resistance strains and recurrence rates. Nevertheless, nanotechnologies have indeed given hope to be the next generation for oncology applications. According to US National cancer institute, it is anticipated to revolutionize the perspectives of cancer diagnosis and therapy. With such success, nano-hybrid strategy creates a marvelous preference...
July 28, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28800434/enhanced-photothermal-therapy-of-biomimetic-polypyrrole-nanoparticles-through-improving-blood-flow-perfusion
#7
Xuejun Wang, Haichun Li, Xianping Liu, Ye Tian, Huishu Guo, Ting Jiang, Zimiao Luo, Kai Jin, Xinping Kuai, Yao Liu, Zhiqing Pang, Wuli Yang, Shun Shen
In this study, we reported a strategy to improve delivery efficiency of a long-circulation biomimetic photothermal nanoagent for enhanced photothermal therapy through selectively dilating tumor vasculature. By using a simply nanocoating technology, a biomimetic layer of natural red blood cell (RBC) membranes was camouflaged on the surface of photothermal polypyrrole nanoparticles (PPy@RBC NPs). The erythrocyte-mimicking PPy NPs inherited the immune evasion ability from natural RBC resulting in superior prolonged blood retention time...
August 5, 2017: Biomaterials
https://www.readbyqxmd.com/read/28795690/ir-780-loaded-polymeric-micelles-enhance-the-efficacy-of-photothermal-therapy-in-treating-breast-cancer-lymphatic-metastasis-in-mice
#8
Bin He, Hai-Yan Hu, Tao Tan, Hong Wang, Kao-Xiang Sun, Ya-Ping Li, Zhi-Wen Zhang
Cancer metastasis is responsible for over 90% of breast cancer-related deaths, and inhibiting lymph node metastasis is an option to treat metastatic disease. Herein, we report the use of IR-780-loaded polymeric micelles (IPMs) for effective photothermal therapy (PTT) of breast cancer lymphatic metastasis. The IPMs were nanometer-sized micelles with a mean diameter of 25.6 nm and had good stability in simulated physiological solutions. Under 808-nm laser irradiation, IPMs exhibited high heat-generating capability in both in vitro and in vivo experiments...
August 10, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28790823/a54-peptide-mediated-functionalized-gold-nanocages-for-targeted-delivery-of-dox-as-a-combinational-photothermal-chemotherapy-for-liver-cancer
#9
Shengnan Huang, Chunming Li, Weiping Wang, Huanjie Li, Zhi Sun, Chengzhi Song, Benyi Li, Shaofeng Duan, Yurong Hu
The combination of photothermal therapy and chemotherapy (photothermal-chemotherapy) is a promising strategy for cancer therapy. Gold nanocages (AuNCs), with hollow and porous structures and unique optical properties, have become a rising star in the field of drug delivery. Here, we designed a novel targeted drug delivery system based on functionalized AuNCs and evaluated their therapeutic effects in vitro and in vivo. We then loaded doxorubicin into this promising system, designated as DHTPAuNCs consisting of hyaluronic acid-grafted and A54 peptide-targeted PEGylated AuNCs...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28782050/theranostic-gold-nanoantennas-for-simultaneous-multiplexed-raman-imaging-of-immunomarkers-and-photothermal-therapy
#10
Joseph A Webb, Yu-Chuan Ou, Shannon Faley, Eden P Paul, Joseph P Hittinger, Camden C Cutright, Eugene C Lin, Leon M Bellan, Rizia Bardhan
In this study, we demonstrate the theranostic capability of actively targeted, site-specific multibranched gold nanoantennas (MGNs) in triple-negative breast cancer (TNBC) cells in vitro. By utilizing multiplexed surface-enhanced Raman scattering (SERS) imaging, enabled by the narrow peak widths of Raman signatures, we simultaneously targeted immune checkpoint receptor programmed death ligand 1 (PDL1) and the epidermal growth factor receptor (EGFR) overexpressed in TNBC cells. A 1:1 mixture of MGNs functionalized with anti-PDL1 antibodies and Raman tag 5,5-dithio-bis-(2-nitrobenzoic acid) (DTNB) and MGNs functionalized with anti-EGFR antibodies and Raman tag para-mercaptobenzoic acid (pMBA) were incubated with the cells...
July 31, 2017: ACS Omega
https://www.readbyqxmd.com/read/28778062/dna-aptamer-functionalized-gold-nanostructures-for-molecular-recognition-and-photothermal-inactivation-of-methicillin-resistant-staphylococcus-aureus
#11
Ismail Ocsoy, Sadi Yusufbeyoglu, Vedat Yılmaz, Eric S McLamore, Nilay Ildız, Ahmet Ülgen
In this work, we report the development of DNA aptamer-functionalized gold nanoparticles (Apt@Au NPs) and gold nanorods (Apt@Au NRs) for inactivation of Methicillin-resistant Staphylococcus aureus (MRSA) with targeted photothermal therapy (PTT). Although both Apt@Au NPs and Apt@Au NRs specifically bind to MRSA cells, Apt@Au NPs and Apt@Au NRs inactivated ∼5% and over 95% of the cells,respectively through PTT. This difference in inactivation was based on the relatively high longitudinal absorption of near-infrared (NIR) radiation and strong photothermal conversion capability for the Apt@Au NRs compared to the Apt@Au NPs...
July 25, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28776627/review-of-the-progress-toward-achieving-heat-confinement-the-holy-grail-of-photothermal-therapy
#12
Wangzhong Sheng, Sha He, William J Seare, Adah Almutairi
No abstract text is available yet for this article.
August 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28767043/glutathione-responsive-micelles-incorporated-with-semiconducting-polymer-dots-and-doxorubicin-for-cancer-photothermal-chemotherapy
#13
Zhixiong Cai, Da Zhang, Xinyi Lin, Yunzhu Chen, Ming Wu, Zuwu Wei, Zhenxi Zhang, Xiaolong Liu, Cuiping Yao
Nanoplatform integrated with PTT and chemotherapy has been recognized a promising agent for enhancing cancer therapeutic outcomes, but still suffer from less controllability for optimizing their synergistic effects. Herein, we fabricated glutathione responsive micelles incorporated with semiconducting polymer dots and doxorubicin (referred as SPDOX NPs) for combining photothermal therapy (PTT) with chemotherapy to enhance cancer therapeutic efficiency. These micelles with excellent water dispersibility were comprised of three distinct functional components: (1) the monomethoxy-poly(ethylene glycol)-S-S-hexadecyl (mPEG-S-S-C16), which forms the micelles, can render hydrophobic substances water-soluble and improve the colloidal stability; (2) the disulfide linkages, can be cleaved in reductive environment for tumor-specific drug release due to the high GSH concentrations of tumor micro-environment; (3) Pdots and anticancer drug DOX that are loaded inside the hydrophobic core of the micelle can be applied to simultaneously perform PTT and chemotherapy to achieve significantly enhanced tumor killing efficiency both in vitro and in vivo...
August 2, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28759063/phase-and-morphological-control-of-moo3-x-nanostructures-for-efficient-cancer-theragnosis-therapy
#14
Bo Li, Xin Wang, Xiaoyu Wu, Guanjie He, Ruoyu Xu, Xinwu Lu, Feng Ryan Wang, Ivan P Parkin
Nanostructures of metal oxide semiconductors play significant roles in a variety of areas, such as biotherapy, pollutant treatment and energy storage and conversion. The molybdenum oxide (MoO3-x) nanostructures have shown promising applications especially when used as photothermal treatment agents due to their relatively low cost, facile synthesis and low toxicity. However, the design and synthesis of efficient MoO3-x nanomaterials with tunable phases and morphologies for theragnosis of tumors remains a challenge...
July 31, 2017: Nanoscale
https://www.readbyqxmd.com/read/28756194/red-blood-cell-membrane-camouflaged-melanin-nanoparticles-for-enhanced-photothermal-therapy
#15
Qin Jiang, Zimiao Luo, Yongzhi Men, Peng Yang, Haibao Peng, Ranran Guo, Ye Tian, Zhiqing Pang, Wuli Yang
Photothermal therapy (PTT) has represented a promising noninvasive approach for cancer treatment in recent years. However, there still remain challenges in developing non-toxic and biodegradable biomaterials with high photothermal efficiency in vivo. Herein, we explored natural melanin nanoparticles extracted from living cuttlefish as effective photothermal agents and developed red blood cell (RBC) membrane-camouflaged melanin (Melanin@RBC) nanoparticles as a platform for in vivo antitumor PTT. The as-obtained natural melanin nanoparticles demonstrated strong absorption at NIR region, higher photothermal conversion efficiency (∼40%) than synthesized melanin-like polydopamine nanoparticles (∼29%), as well as favorable biocompatibility and biodegradability...
July 20, 2017: Biomaterials
https://www.readbyqxmd.com/read/28755641/a-visual-guide-to-gene-optothermal-synergy-therapy-nanosystem-using-tungsten-oxide
#16
Bin Zheng, Jingya Wang, Huizhuo Pan, Hongbin Chen, Wanying Ji, Zhenyu Liao, Xiaoqun Gong, Hanjie Wang, Jin Chang
Combination of gene therapy and photothermal therapy (PTT) has drawn much attention in cancer therapy in recent years. However, this joint treatment process lacks fluorescence imaging visualization guidance that limits its clinical applications in oncotherapy. Herein, we report the use of gene therapy and tungsten oxide (W18O49, WO) synthetized with template method for combined PTT of cancer. In this system, a novel nanoplatform, with Bax gene, WO and indocyanine green (ICG) loaded in mesoporous silica nanoparticle had been successfully constructed, which was used as the near-infrared imaging-guided gene/optothermal multi-modal oncotherapy...
July 20, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28752765/gold-embedded-hollow-silica-nanogolf-balls-for-imaging-and-photothermal-therapy
#17
Woraphong Janetanakit, Liping Wang, Karla Santacruz-Gomez, Preston B Landon, Paul L Sud, Nirav Patel, Grace Jang, Malvika Jain, Alice Yepremyan, Sami A Kazmi, Deependra K Ban, Feng Zhang, Ratnesh Lal
Hybrid nanocarriers with multifunctional properties have wide therapeutic and diagnostic applications. We have constructed hollow silica nanogolf balls (HGBs) and gold-embedded hollow silica nanogolf balls (Au@SiO2 HGBs) using the layer-by-layer approach on a symmetric polystyrene (PS) Janus template; the template consists of smaller PS spheres attached to an oppositely charged large PS core. ζ Potential measurement supports the electric force-based template-assisted synthesis mechanism. Electron microscopy, UV-vis, and near-infrared (NIR) spectroscopy show that HGBs or Au@SiO2 HGBs are composed of a porous silica shell with an optional dense layer of gold nanoparticles embedded in the silica shell...
August 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28750318/pegylated-nh4-xwo3-nanorods-as-efficient-and-stable-multifunctional-nanoagents-for-simultaneous-ct-imaging-and-photothermal-therapy-of-tumor
#18
Daniel K Macharia, Qiyun Tian, Liang Chen, Yingqi Sun, Nuo Yu, Chuanglong He, Han Wang, Zhigang Chen
The simultaneous imaging and photothermal therapy of tumors have attracted much attention, and a prerequisite is to obtain multifunctional nanomaterials. Ideally, one kind of nanoparticles with single component can be used as both imaging agent and photothermal agent. Herein, we have developed the PEGylated (NH4)xWO3 (denoted as (NH4)xWO3-PEG) nanorods as multifunctional nanoparticles with single semiconductor component. (NH4)xWO3-PEG nanorods with about 30nm diameter and length of several hundred nanometers have been obtained through a solvothermal synthesis-PEGylation two-step route...
July 18, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28749498/black-tio2-based-core-shell-nanocomposites-as-doxorubicin-carriers-for-thermal-imaging-guided-synergistic-therapy-of-breast-cancer
#19
Wenzhi Ren, M Zubair Iqbal, Leyong Zeng, Tianxiang Chen, Yuanwei Pan, Jinshun Zhao, Hao Yin, Lili Zhang, Jichao Zhang, Aiguo Li, Aiguo Wu
TiO2 nanomaterials have been widely used for anticancer drug carriers and UV/980 nm NIR triggered cancer synergistic platforms. However, traditional pure TiO2 nanocarriers encounter some serious drawbacks, such as low drug loading ability, limited tissue penetration of UV light, and heating effect of 980 nm NIR on normal tissue, which obstruct their further application in cancer treatment. To overcome those challenges, novel mesoporous silica (mSiO2) coated black TiO2 core-shell nanocomposites are designed and constructed as doxorubicin carriers for 808 nm NIR triggered thermal imaging guided photothermal therapy combined chemotherapy of breast cancer...
July 27, 2017: Nanoscale
https://www.readbyqxmd.com/read/28745411/a-hollow-structured-cus-cu2-s-au-nanohybrid-synergistically-enhanced-photothermal-efficiency-and-photoswitchable-targeting-effect-for-cancer-theranostics
#20
Xiaoran Deng, Kai Li, Xuechao Cai, Bin Liu, Yi Wei, Kerong Deng, Zhongxi Xie, Zhijian Wu, Ping'an Ma, Zhiyao Hou, Ziyong Cheng, Jun Lin
It is of great importance in drug delivery to fabricate multifunctional nanocarriers with intelligent targeting properties, for cancer diagnosis and therapy. Herein, hollow-structured CuS@Cu2 S@Au nanoshell/satellite nanoparticles are designed and synthesized for enhanced photothermal therapy and photoswitchable targeting theranostics. The remarkably improved photothermal conversion efficiency of CuS@Cu2 S@Au under 808 nm near-infrared (NIR) laser irradiation can be explained by the reduced bandgap and more circuit paths for electron transitions for CuS and Cu2 S modified with Au nanoparticles, as calculated by the Vienna ab initio simulation package, based on density functional theory...
July 26, 2017: Advanced Materials
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