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chemotherapy hyperthermia

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https://www.readbyqxmd.com/read/27916642/magnetic-hyperthermia-and-ph-responsive-effective-drug-delivery-to-the-sub-cellular-level-of-human-breast-cancer-cells-by-modified-cofe2o4-nanoparticles
#1
Yunok Oh, Madhappan Santha Moorthy, Panchanathan Manivasagan, Subramaniyan Bharathiraja, Junghwan Oh
Magnetic iron oxide nanoparticles (MNPs) have been extensively utilized in a wide range of biomedical applications including magnetic hyperthermia agent. To improve the efficiency of the MNPs in therapeutic applications, in this study, we have synthesized CoFe2O4 nanoparticles and its surface was further functionalized with meso-2,3-dimercaptosuccinic acid (DMSA). The anticancer agent, Doxorubucin (DOX) was conjugated with CoFe2O4@DMSA nanoparticle to evaluate the combined effects of thermotherapy and chemotherapy...
December 1, 2016: Biochimie
https://www.readbyqxmd.com/read/27909289/hyperthermia-enhances-17-dmag-efficacy-in-hepatocellular-carcinoma-cells-with-aggravated-dna-damage-and-impaired-g2-m-transition
#2
Zhizhou Huang, Xueqiong Zhou, Yangfan He, Xiangyu Ke, Ying Wen, Fei Zou, Xuemei Chen
Due to the lack of effective treatment, hepatocellular carcinoma (HCC) is one of the malignancies with low survival rates worldwide. Combination of hyperthermia and chemotherapy has shown promising results in several abdominal tumours, but high expression of HSP90 in tumours attenuated the efficacy of hyperthermia. Thus a combination of hyperthermia and inhibition of HSP90 might be a feasible therapeutic strategy for HCC. One hepatic cell line (L02) and two HCC cell lines (Huh7 and HepG2) were heated at 42 °C for 0, 0...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27890732/programmed-near-infrared-light-responsive-drug-delivery-system-for-combined-magnetic-tumor-targeting-magnetic-resonance-imaging-and-chemo-phototherapy
#3
Qianhua Feng, Yuanyuan Zhang, Wanxia Zhang, Yongwei Hao, Yongchao Wang, Hongling Zhang, Lin Hou, Zhenzhong Zhang
: In this study, an intelligent drug delivery system was developed by capping doxorubicin (DOX)-loaded hollow mesoporous CuS nanoparticles (HMCuS NPs) with superparamagnetic iron oxide nanoparticles (IONPs). Under near infrared (NIR) light irradiation, the versatile HMCuS NPs could exploit the merits of both photothermal therapy (PTT) and photodynamic therapy (PDT) simultaneously. Herein, the multifunctional IONPs as gatekeeper with the enhanced capping efficiency were supposed to realize "zero premature release" and minimize the adverse side effects during the drug delivery in vivo...
November 24, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27890622/multi-functional-nanoparticles-as-theranostic-agents-for-treatment-imaging-in-pancreatic-cancer
#4
L R Jaidev, David Raj Chellappan, Dhiraj Vasanth Bhavsar, Ravi Ranganathan, Banudevi Sivanantham, Anuradha Subramanian, Uma Sharma, Narnamangalam R Jagannathan, Uma Maheswari Krishnan, Swaminathan Sethuraman
: Theranostics has received considerable attention since both therapy and imaging modalities can be integrated into a single nanocarrier. In this study, fluorescent iron oxide (FIO) nanoparticles and gemcitabine (G) encapsulated poly(lactide-co-glycolide) (PLGA) nanospheres (PGFIO) conjugated with human epidermal growth factor receptor 2, (HER-2) antibody (HER-PGFIO) were prepared and characterized. HER-PGFIO showed the magnetic moment of 10 emu/g, relaxivity (r2) of 773 mM(-1)s(-1) and specific absorption rate (SAR) of 183 W/g...
November 23, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27879041/cyanine-anchored-silica-nanochannels-for-light-driven-synergistic-thermo-chemotherapy
#5
Yibin Deng, Li Huang, Hong Yang, Hengte Ke, Hui He, Zhengqing Guo, Tao Yang, Aijun Zhu, Hong Wu, Huabing Chen
Smart nanoparticles are increasingly important in a variety of applications such as cancer therapy. However, it is still a major challenge to develop light-responsive nanoparticles that can maximize the potency of synergistic thermo-chemotherapy under light irradiation. Here, spatially confined cyanine-anchored silica nanochannels loaded with chemotherapeutic doxorubicin (CS-DOX-NCs) for light-driven synergistic cancer therapy are introduced. CS-DOX-NCs possess a J-type aggregation conformation of cyanine dye within the nanochannels and encapsulate doxorubicin through the π-π interaction with cyanine dye...
November 23, 2016: Small
https://www.readbyqxmd.com/read/27846403/magnetic-hyperthermia-enhances-cell-toxicity-with-respect-to-exogenous-heating
#6
Beatriz Sanz, M Pilar Calatayud, Teobaldo E Torres, Mónica L Fanarraga, M Ricardo Ibarra, Gerardo F Goya
Magnetic hyperthermia is a new type of cancer treatment designed for overcoming resistance to chemotherapy during the treatment of solid, inaccessible human tumors. The main challenge of this technology is increasing the local tumoral temperature with minimal side effects on the surrounding healthy tissue. This work consists of an in vitro study that compared the effect of hyperthermia in response to the application of exogenous heating (EHT) sources with the corresponding effect produced by magnetic hyperthermia (MHT) at the same target temperatures...
November 9, 2016: Biomaterials
https://www.readbyqxmd.com/read/27831759/triple-therapy-of-her2-cancer-using-radiolabeled-multifunctional-iron-oxide-nanoparticles-and-alternating-magnetic-field
#7
Hamidreza Zolata, Hossein Afarideh, Fereydoun Abbasi Davani
By using radio-labeled multifunctional superparamagnetic iron oxide nanoparticles (SPIONs) and an alternating magnetic field (AMF), we carried out targeted hyperthermia, drug delivery, radio-immunotherapy (RIT), and controlled chemotherapy of cancer tumors. We synthesized and characterized Indium-111-labeled, Trastuzumab and Doxorubicin (DOX)-conjugated APTES-PEG-coated SPIONs in our previous work. Then, we evaluated their capability in SPECT/MRI (single photon emission computed tomography/magnetic resonance imaging) dual modal molecular imaging, targeting, and controlled release...
November 2016: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/27822032/co-delivery-of-doxorubicin-and-recombinant-plasmid-phsp70-plk1-shrna-by-bacterial-magnetosomes-for-osteosarcoma-therapy
#8
Li Cheng, Youqun Ke, Shuisheng Yu, Juehua Jing
To explore a novel combination of chemotherapy, gene therapy, and thermotherapy for osteosarcoma, a targeted heat-sensitive co-delivery system based on bacterial magnetosomes (BMs) was developed. The optimal culture conditions of magnetotactic bacteria (MTB) AMB-1 and characterization of BMs were achieved. A recombinant eukaryotic plasmid heat shock protein 70-polo-like kinase 1-short hairpin RNA (pHSP70-Plk1-shRNA) under transcriptional control of a thermosensitive promoter (human HSP70 promoter) was constructed for gene therapy...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27768213/radiofrequency-induced-thermo-chemotherapy-effect-rite-for-non-muscle-invasive-bladder-cancer-treatment-current-role-and-perspectives
#9
Renzo Colombo, Hans van Valenberg, Marco Moschini, Johannes A Witjes
OBJECTIVE: An updated review of intravesical radiofrequency (RF)-induced thermo-chemotherapy effect (RITE) for NMIBC with regard to efficacy, adverse events (AEs) and perspectives. EVIDENCE ACQUISITION: An extensive and sensitive search for RF-induced chemo-hyperthermia in Medline, Embase, Cochrane and ClinicalTrials.gov databases was performed. A table of published clinical trials up to 2016 was constructed. No meta-analysis could be performed on the basis of new papers...
October 4, 2016: Urologia
https://www.readbyqxmd.com/read/27756009/magnetic-nanoparticle-induced-hyperthermia-with-appropriate-payloads-paul-ehrlich-s-magic-nano-bullet-for-cancer-theranostics
#10
N R Datta, S Krishnan, D E Speiser, E Neufeld, N Kuster, S Bodis, H Hofmann
Effective multimodal cancer management requires the optimal integration of diagnostic and therapeutic modalities. Radiation therapy, chemotherapy and immunotherapy, alone or in combination, are integral parts of various cancer treatment protocols. Hyperthermia at 39-45°C is a potent radiosensitiser and has been shown to improve therapeutic outcomes in various tumours through its synergy with chemotherapy. Gene silencing approaches, using small interfering RNAs and microRNAs, are also being explored in clinical trials in oncology...
October 3, 2016: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/27735129/graphene-quantum-dots-capped-magnetic-mesoporous-silica-nanoparticles-as-a-multifunctional-platform-for-controlled-drug-delivery-magnetic-hyperthermia-and-photothermal-therapy
#11
Xianxian Yao, Xingxing Niu, Kexin Ma, Ping Huang, Julia Grothe, Stefan Kaskel, Yufang Zhu
A multifunctional platform is reported for synergistic therapy with controlled drug release, magnetic hyperthermia, and photothermal therapy, which is composed of graphene quantum dots (GQDs) as caps and local photothermal generators and magnetic mesoporous silica nanoparticles (MMSN) as drug carriers and magnetic thermoseeds. The structure, drug release behavior, magnetic hyperthermia capacity, photothermal effect, and synergistic therapeutic efficiency of the MMSN/GQDs nanoparticles are investigated. The results show that monodisperse MMSN/GQDs nanoparticles with the particle size of 100 nm can load doxorubicin (DOX) and trigger DOX release by low pH environment...
October 13, 2016: Small
https://www.readbyqxmd.com/read/27721391/plasmonic-magnetic-multifunctional-nanoplatform-for-cancer-theranostics
#12
M Ravichandran, Goldie Oza, S Velumani, Jose Tapia Ramirez, Francisco Garcia-Sierra, Norma Barragan Andrade, A Vera, L Leija, Marco A Garza-Navarro
A multifunctional magneto-plasmonic CoFe2O4@Au core-shell nanoparticle was developed by iterative-seeding based method. This nanocargo consists of a cobalt ferrite kernel as a core (Nk) and multiple layers of gold as a functionalizable active stratum, (named as Nk@A after fifth iteration). Nk@A helps in augmenting the physiological stability and enhancing surface plasmon resonance (SPR) property. The targeted delivery of Doxorubicin using Nk@A as a nanopayload is demonstrated in this report. The drug release profile followed first order rate kinetics optimally at pH 5...
October 10, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27690303/intratumoral-radiofrequency-hyperthermia-enhanced-direct-chemotherapy-of-pancreatic-cancer
#13
Zhibin Bai, Yaoping Shi, Jianfeng Wang, Longhua Qiu, Eric J Monroe, Gaojun Teng, Feng Zhang, Xiaoming Yang
PURPOSE: To investigate the technical feasibility of using ultrasound-guided intratumoral radiofrequency hyperthermia (RFH) to enhance local chemotherapy of rat orthotopic pancreatic cancers. MATERIALS AND METHODS: Orthotopic pancreatic cancer masses were established by inoculating luciferase/mCherry labeled-pancreatic cancer cells into the pancreatic tails of Lewis model rats via a laparotomy approach. Twenty-four rats with pancreatic cancer and 24 mice with subcutaneous pancreatic cancer xenografts in four study groups (n = 6/group) received various treatments: i) combination therapy of intratumoral MR imaging-heating-guidewire-mediated RFH (42oC) plus local chemotherapy (gemcitabine); ii) intratumoral chemotherapy alone; iii) RFH alone; and (iv)phosphate-buffered saline (PBS)...
September 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27646591/ph-nir-light-controlled-multidrug-release-via-a-mussel-inspired-nanocomposite-hydrogel-for-chemo-photothermal-cancer-therapy
#14
Amin GhavamiNejad, Melisa SamariKhalaj, Ludwig Erik Aguilar, Chan Hee Park, Cheol Sang Kim
This study reports on an intelligent composite hydrogel with both pH-dependent drug release in a cancer environment and heat generation based on NIR laser exposure, for the combined application of photothermal therapy (PTT) and multidrug chemotherapy. For the first time in the literature, Dopamine nanoparticle (DP) was incorporated as a highly effective photothermal agent as well as anticancer drug, bortezomib (BTZ) carrier inside a stimuli responsive pNIPAAm-co-pAAm hydrogel. When light is applied to the composite hydrogel, DP nanoparticle absorbs the light, which is dissipated locally as heat to impact cancer cells via hyperthermia...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27633094/usefulness-of-thermographic-analysis-to-control-temperature-homogeneity-in-the-development-and-implementation-of-a-closed-recirculating-co2-chemohyperthermia-model
#15
David Padilla-Valverde, Susana Sanchez-Garcia, Esther García-Santos, Carlos Marcote-Ibañez, Mercedes Molina-Robles, Jesús Martín-Fernández, Pedro Villarejo-Campos
PURPOSE: To determine the effectiveness of thermography to control the distribution of abdominal temperature in the development of a closed chemohyperthermia model Materials and Methods: For thermographic analysis, we divided the abdominopelvic cavity into nine regions according to a modification of carcinomatosis peritoneal index. A difference of 2.5º C between and within the quadrants, and thermographic colors, were used as asymmetric criteria. Preclinical study: Rats Model: Six athymic nude rats, male, rnu/rnu...
September 16, 2016: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/27614237/multifunctional-organically-modified-silica-nanoparticles-for-chemotherapy-adjuvant-hyperthermia-and-near-infrared-imaging
#16
Abhignyan Nagesetti, Anthony J McGoron
We report a novel system of organically modified silica nanoparticles (Ormosil) capable of near infrared fluorescence and chemotherapy with adjuvant hyperthermia for image guided cancer therapy. Ormosil nanoparticles were loaded with a chemotherapeutic, Doxorubicin (DOX) and cyanine dye, IR820. Ormosil particles had a mean diameter of 51.2±2.4 nanometers and surface charge of -40.5±0.8mV. DOX was loaded onto Ormosil particles via physical adsorption (FDSIR820) or covalent linkage (CDSIR820) to the silanol groups on the Ormosil surface...
November 1, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27595890/doxorubicin-loaded-photosensitive-magnetic-liposomes-for-multi-modal-cancer-therapy
#17
Saqlain A Shah, M U Aslam Khan, M Arshad, S U Awan, M U Hashmi, N Ahmad
Multifunctional magnetic nanosystems have attracted an enormous attention of researchers for their potential applications in cancer diagnostics and therapy. The localized nanotherapies triggered by the external stimuli, like magnetic fields and visible light, are significant in clinical applications. We report a liposomal system that aims to treat cancer by magnetic hyperthermia, photodynamic therapy and chemotherapy simultaneously. The liposomes enclose clinically used photosensitizer m-THPC (Foscan) and anti-cancer drug doxorubicin, in its hydrophobic lipid bilayers, and contains magnetite nanoparticles in hydrophilic core...
August 31, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27589410/boosted-hyperthermia-therapy-by-combined-ac-magnetic-and-photothermal-exposures-in-ag-fe3o4-nanoflowers
#18
R Das, N Rinaldi-Montes, J Alonso, Z Amghouz, E Garaio, J A García, P Gorria, J A Blanco, M H Phan, H Srikanth
Over the past two decades, magnetic hyperthermia and photothermal therapy are becoming very promising supplementary techniques to well-established cancer treatments such as radiotherapy and chemotherapy. These techniques have dramatically improved their ability to perform controlled treatments, relying on the procedure of delivering nanoscale objects into targeted tumor tissues, which can release therapeutic killing doses of heat either upon AC magnetic field exposure or laser irradiation. Although an intense research effort has been made in recent years to study, separately, magnetic hyperthermia using iron oxide nanoparticles and photothermal therapy based on gold or silver plasmonic nanostructures, the full potential of combining both techniques has not yet been systematically explored...
September 28, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27566037/operating-personnel-safety-during-the-administration-of-hyperthermic-intraperitoneal-chemotherapy-hipec
#19
REVIEW
Ioannis Kyriazanos, Vasileios Kalles, Anastasios Stefanopoulos, John Spiliotis, Faheez Mohamed
Cytoreductive surgery (CRS) and Hyperthermic Intraperitoneal Chemotherapy (HIPEC) is increasingly used in the treatment of peritoneal malignancies. The administration of HIPEC after complete cytoreduction offers the combination of the pharmacokinetic advantages inherent to the intraperitoneal delivery of cytotoxic chemotherapy, with the direct cytotoxic effects of hyperthermia, and has been reported to offer significantly improved patient outcomes. As a result, this novel method disseminates rapidly, with many surgical teams having developed peritoneal malignancy treatment programs...
September 2016: Surgical Oncology
https://www.readbyqxmd.com/read/27565002/photoinduced-mild-hyperthermia-and-synergistic-chemotherapy-by-one-pot-synthesized-docetaxel-loaded-poly-lactic-co-glycolic-acid-polypyrrole-nanocomposites
#20
Jie Yuan, Jialu Liu, Qi Song, Dan Wang, Wensheng Xie, Hao Yan, Junfeng Zhou, Yen Wei, Xiaodan Sun, Lingyun Zhao
Mild hyperthermia has shown great advantages when combined with chemotherapy. The development of a multifunctional platform for the integration of mild hyperthermia capability into a drug-loading system is a key issue for cancer multimodality treatment application. Herein, a facile one-pot in situ fabrication protocol of docetaxel (DTX)-loaded poly(lactic-co-glycolic acid) (PLGA)/polypyrrole (PPy) nanocomposites was developed. While the PLGA nanoparticles (NPs) allow efficient drug loading, the PPy nanobulges embedded within the surface of the PLGA NPs, formed by in situ pyrrole polymerization without the introduction of other template agents, can act as ideal mediators for photoinduced mild hyperthermia...
September 21, 2016: ACS Applied Materials & Interfaces
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