keyword
MENU ▼
Read by QxMD icon Read
search

Graphene apoptosis

keyword
https://www.readbyqxmd.com/read/29135959/intratumoral-delivery-of-doxorubicin-on-folate-conjugated-graphene-oxide-by-in-situ-forming-thermo-sensitive-hydrogel-for-breast-cancer-therapy
#1
Yi Teng Fong, Chih-Hao Chen, Jyh-Ping Chen
By taking advantage of the pH-sensitive drug release property of graphene oxide (GO) after intracellular uptake, we prepared folic acid (FA)-conjugated GO (GOFA) for targeted delivery of the chemotherapeutic drug doxorubicin (DOX). GOFA-DOX was further encapsulated in an injectable in-situ forming thermo-sensitive hyaluronic acid-chitosan-g-poly(N-isopropylacrylamide) (HACPN) hydrogel for intratumoral delivery of DOX. As the degradation time of HACPN could be extended up to 3 weeks, intratumoral delivery of GOFA-DOX/HACPN could provide controlled and targeted delivery of DOX through slow degradation HACPN and subsequent cellular uptake of released GOFA-DOX by tumor cells through interactions of GOFA with folate receptors on the tumor cell's surface...
November 14, 2017: Nanomaterials
https://www.readbyqxmd.com/read/29096398/mitochondrial-specific-photodynamic-therapy-by-rare-earth-nanoparticles-mediated-near-infrared-graphene-quantum-dots
#2
Dandan Zhang, Liewei Wen, Ru Huang, Huanhuan Wang, Xianglong Hu, Da Xing
Photodynamic therapy (PDT) has been proposed in cancer treatment for decades, but its clinical translation is significantly impeded by the low yield of ROS, poor tissue penetration depth of most current photosensitizers, and short lifetime of ROS. These limitations directly affect the therapeutic effect of PDT in cancer therapy. Here we proposed a new strategy by collaboratively integrating rare-earth doped upconversion nanoparticles (UCNP) with graphene quantum dot (GQD) for highly efficacious PDT, based on the merits of UCNP, which can emit UV-vis light under near-infrared light (NIR) excitation, and GQD, which can produce (1)O2 efficiently...
October 23, 2017: Biomaterials
https://www.readbyqxmd.com/read/29089229/enhancement-of-the-photokilling-effect-of-tio2-in-photodynamic-therapy-by-conjugating-with-reduced-graphene-oxide-and-its-mechanism-exploration
#3
Hongyuan Shang, Dong Han, Min Ma, Sha Li, Wenting Xue, Aiping Zhang
As a promising next-generation photodynamic therapy (PDT) photosensitizer, TiO2 nanoparticles (NPs) has gained great attention due to its higher efficiency. Yet, its application in PDT is strongly limited by its UV light response range. In this work, TiO2 NPs conjugated with reduced graphene oxide (RGO-TiO2) composites were successfully prepared by hydrothermal reduction method. They were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Transmission electron microscope (TEM), Brunauer-Emmett-Teller (BET), UV-vis spectroscopy and X-ray photoelectron spectroscopy (XPS)...
October 24, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29075115/novel-biomolecule-lycopene-reduced-graphene-oxide-silver-nanoparticle-enhances-apoptotic-potential-of-trichostatin-a-in-human-ovarian-cancer-cells-skov3
#4
Xi-Feng Zhang, Feng-Hua Huang, Guo-Liang Zhang, Ding-Ping Bai, De Felici Massimo, Yi-Fan Huang, Sangiliyandi Gurunathan
BACKGROUND: Recently, there has been much interest in the field of nanomedicine to improve prevention, diagnosis, and treatment. Combination therapy seems to be most effective when two different molecules that work by different mechanisms are combined at low dose, thereby decreasing the possibility of drug resistance and occurrence of unbearable side effects. Based on this consideration, the study was designed to investigate the combination effect of reduced graphene oxide-silver nanoparticles (rGO-AgNPs) and trichostatin A (TSA) in human ovarian cancer cells (SKOV3)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29064374/in-vitro-toxic-effects-of-reduced-graphene-oxide-nanosheets-on-lung-cancer-cells
#5
Tanveer Tabish, Zahid Pranjol, Hasan Hayat, Alma Rahat, Trefa Mohammed Abdullah, Jacqueline Whatmore, Shaowei Zhang
The intriguing properties of reduced graphene oxide (rGO) have paved the way for a number of potential biomedical applications such as drug delivery, tissue engineering, gene delivery and bio-sensing. Over the last decade, there have been escalating concerns regarding the possible toxic effects, behaviour and fate of rGO in living systems and environments. This paper reports on integrative chemical-biological interactions of rGO with lung cancer cells, i.e. A549 and SKMES-1, to determine its potential toxicological impacts on them, as a function of its concentration...
October 24, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29018231/biochemical-mechanisms-of-dose-dependent-cytotoxicity-and-ros-mediated-apoptosis-induced-by-lead-sulfide-graphene-oxide-quantum-dots-for-potential-bioimaging-applications
#6
Mahdi Ayoubi, Parvaneh Naserzadeh, Mohammad Taghi Hashemi, Mohammad Reza Rostami, Elnaz Tamjid, Mohammad Mahdi Tavakoli, Abdolreza Simchi
Colloidal quantum dots (CQD) have attracted considerable attention for biomedical diagnosis and imaging as well as biochemical analysis and stem cell tracking. In this study, quasi core/shell lead sulfide/reduced graphene oxide CQD with near infrared emission (1100 nm) were prepared for potential bioimaging applications. The nanocrystals had an average diameter of ~4 nm, a hydrodynamic size of ~8 nm, and a high quantum efficiency of 28%. Toxicity assay of the hybrid CQD in the cultured human mononuclear blood cells does not show cytotoxicity up to 200 µg/ml...
October 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924347/the-mechanisms-of-graphene-based-materials-induced-programmed-cell-death-a-review-of-apoptosis-autophagy-and-programmed-necrosis
#7
REVIEW
Lingling Ou, Shaoqiang Lin, Bin Song, Jia Liu, Renfa Lai, Longquan Shao
Graphene-based materials (GBMs) are widely used in many fields, including biomedicine. To date, much attention had been paid to the potential unexpected toxic effects of GBMs. Here, we review the recent literature regarding the impact of GBMs on programmed cell death (PCD). Apoptosis, autophagy, and programmed necrosis are three major PCDs. Mechanistic studies demonstrated that the mitochondrial pathways and MAPKs (JNK, ERK, and p38)- and TGF-β-related signaling pathways are implicated in GBMs-induced apoptosis...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28919753/combination-of-graphene-oxide-silver-nanoparticle-nanocomposites-and-cisplatin-enhances-apoptosis-and-autophagy-in-human-cervical-cancer-cells
#8
Yu-Guo Yuan, Sangiliyandi Gurunathan
BACKGROUND: Cisplatin (Cis) is a widely used chemotherapeutic drug for treating a variety of cancers, due to its ability to induce cell death in cancer cells significantly. Recently, graphene and its modified nanocomposites have gained much interest in cancer therapy, due to their unique physicochemical properties. The objective of this study was to investigate the combination effect of Cis and a reduced graphene oxide-silver nanoparticle nanocomposite (rGO-AgNPs) in human cervical cancer (HeLa) cells...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28916996/successive-release-of-tissue-inhibitors-of-metalloproteinase-1-through-graphene-oxide-based-delivery-system-can-promote-skin-regeneration
#9
Cheng Zhong, Dike Shi, Yixiong Zheng, Peter J Nelson, Qi Bao
The purpose of this study was to testify the hypothesis that graphene oxide (GO) could act as an appropriate vehicle for the release of tissue inhibitors of metalloproteinase-1 (TIMP-1) protein in the context of skin repair. GO characteristics were observed by scanning electron microscopy, atomic force microscopy, and thermal gravimetric analysis. After TIMP-1 absorbing GO, the release profiles of various concentrations of TIMP-1 from GO were compared. GO biocompatibility with fibroblast viability was assessed by measuring cell cycle and apoptosis...
September 15, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28860751/quercetin-mediated-synthesis-of-graphene-oxide-silver-nanoparticle-nanocomposites-a-suitable-alternative-nanotherapy-for-neuroblastoma
#10
Yu-Guo Yuan, Yan-Hong Wang, Hui-Hui Xing, Sangiliyandi Gurunathan
BACKGROUND: Graphene and graphene-related materials have gained substantial interest from both academia and industry for the development of unique nanomaterials for biomedical applications. Graphene oxide (GO) and silver nanoparticles (AgNPs) are a valuable platform for the development of nanocomposites, permitting the combination of nanomaterials with different physical and chemical properties to generate novel materials with improved and effective functionalities in a single platform...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28814866/graphene-oxide-and-reduced-graphene-oxide-induced-neural-pheochromocytoma-derived-pc12-cell-lines-apoptosis-and-cell-cycle-alterations-via-the-erk-signaling-pathways
#11
Yiyuan Kang, Jia Liu, Junrong Wu, Qian Yin, Huimin Liang, Aijie Chen, Longquan Shao
Given the novel applications of graphene materials in biomedical and electronics industry, the health hazards of these particles have attracted extensive worldwide attention. Although many studies have been performed on graphene material-induced toxic effects, toxicological data for the effect of graphene materials on the nervous system are lacking. In this study, we focused on the biological effects of graphene oxide (GO) and reduced graphene oxide (rGO) materials on PC12 cells, a type of traditional neural cell line...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28810193/kinetics-and-mechanism-of-antibacterial-activity-and-cytotoxicity-of-ag-rgo-nanocomposite
#12
Marjan Moghayedi, Elaheh K Goharshadi, Kiarash Ghazvini, Hossein Ahmadzadeh, Laleh Ranjbaran, Raheleh Masoudi, Ralf Ludwig
Nowadays, nanomaterials with remarkable antibacterial activity and low cytotoxicity attract much interest in research. By considering the antibacterial activity of Ag and graphene oxide (GO), the Ag-RGO nanocomposite was prepared by a one-pot and facile technique and it was used to evaluate its antibacterial activity and cytotoxicity against Escherichia coli and glioblastoma cancer cells (U87MG), respectively. The antibacterial activity was studied by micro-dilution and colony counting methods to investigate cell viability...
August 4, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28782357/beyond-a-carrier-graphene-quantum-dots-as-a-probe-for-programmatically-monitoring-anti-cancer-drug-delivery-release-and-response
#13
Hui Ding, Fan Zhang, Chaochao Zhao, Yanlin Lv, Guanghui Ma, Wei Wei, Zhiyuan Tian
On the basis of the unique physicochemical properties of graphene quantum dots (GQDs), we developed a novel type of theranostic agent by loading anticancer drug doxorubicin (DOX) to GQD's surface and conjugating Cy5.5 (Cy) dye to GQD though a cathepsin D-responsive (P) peptide. Such type of agents demonstrated superior therapeutic performance both in vitro and in vivo because of the improved tissue penetration and cellular uptake. More importantly, they are capable of functioning as probes for programmed tracking the delivery and release of anticancer drug as well as drug-induced cancer cell apoptosis through GQD's, DOX's, and Cy's charateristic fluorescence, respectively...
August 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28662392/mc3t3-e1-pre-osteoblast-response-and-differentiation-after-graphene-oxide-nanosheet-uptake
#14
Mónica Cicuéndez, Virgília S Silva, María J Hortigüela, M Concepción Matesanz, Mercedes Vila, M Teresa Portolés
Nano-graphene oxide (GO) and its functionalized derivatives have aroused a great interest for drug delivery, tissue engineering and photothermal cancer therapy, but their biocompatibility has not yet been fully assessed. The aim of the present study was to evaluate the proliferation and differentiation of MC3T3-E1 pre-osteoblasts after the uptake of GO nanosheets (c.a. 400nm), functionalized with poly(ethylene glycol-amine) (PEG) and labelled with fluorescein isothiocyanate (FITC). Significant proliferation decrease and apoptosis increase were observed 3days after incorporation of FITC-PEG-GO by MC3T3-E1 cells...
October 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28652728/ti-go-ag-nanocomposite-the-effect-of-content-level-on-the-antimicrobial-activity-and-cytotoxicity
#15
Jianfeng Jin, Li Zhang, Mengqi Shi, Yumei Zhang, Qintao Wang
Surface modification of titanium (Ti) implants are extensively studied in order to obtain prominent biocompatibility and antimicrobial activity, especially preventing implant-associated infection. In this study, Ti substrates surface were modified by graphene oxide (GO) thin film and silver (Ag) nanoparticles via electroplating and ultraviolet reduction methods so as to achieve this purpose. Microstructures, distribution, quantities and spectral peaks of GO and Ag loading on the Ti sheets surface were characterized...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28614069/pegylated-lipid-bilayer-wrapped-nano-graphene-oxides-for-synergistic-co-delivery-of-doxorubicin-and-rapamycin-to-prevent-drug-resistance-in-cancers
#16
Raj Kumar Thapa, Jeong Hoon Byeon, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
Nano-graphene oxide (nGO) is a carbon allotrope studied for its potential as carrier for chemotherapeutic delivery and its photoablation effects. However, interaction of nGO with blood components and the subsequent toxicities warrant a hybrid system for effective cancer drug delivery. Combination chemotherapy aids in effective cancer treatment and prevention of drug resistance. Therefore, in this study, we attempted to prepare polyethylene glycosylated (PEGylated) lipid bilayer-wrapped nGO co-loaded with doxorubicin (DOX) and rapamycin (RAPA), GOLDR, for the prevention and treatment of resistant cancers...
June 14, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28572728/analysis-of-the-cytotoxicity-of-hierarchical-nanoporous-graphenic-carbon-against-human-glioblastoma-grade-iv-cells
#17
Sławomir Jaworski, Paulina Biniecka, Żaneta Bugajska, Karolina Daniluk, Sławomir Dyjak, Barbara Strojny, Marta Kutwin, Mateusz Wierzbicki, Marta Grodzik, André Chwalibog
A newly produced hierarchical, nanoporous carbon (HNC) material is studied for the first time in a biological model. The material consists of uniform particles and is characterized by a mean diameter <150 nm, a high specific surface area of 1,000 m(2)/g, well-developed porosity, and high electrical conductivity. These unique properties and ability to transfer charge create a possibility of employing HNC as a moderator of tumor cell growth. As the charge of HNC may interfere with cell membranes by adhesion and by bonding with cell receptors, it may block the supply of nutrients...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28495579/a-new-chemotherapy-agent-free-theranostic-system-composed-of-graphene-oxide-nano-complex-and-aptamers-for-treatment-of-cancer-cells
#18
Amirhossein Bahreyni, Rezvan Yazdian-Robati, Shirin Hashemitabar, Mohammad Ramezani, Pouria Ramezani, Khalil Abnous, Seyed Mohammad Taghdisi
The common cancer treatment strategies like chemotherapy and radiotherapy are nonspecific and can trigger severe side effects by damaging normal cells. So, targeted cancer therapies, such as apoptosis induction, have attracted great attention in recent years. In this project, two nano-complexes, MUC1 aptamer-NAS-24 aptamer-Graphene oxide (GO) and MUC1 aptamer-Cytochrome C aptamer-GO, were designed to induce cell programmed death in MDA-MB-231 and MCF-7 cells (breast cancer cell lines) and to verify the level of apoptosis in both cell lines...
May 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28443516/synergistic-effect-of-graphene-oxide-coated-nanotised-apigenin-with-paclitaxel-go-na-ptx-a-ros-dependent-mitochondrial-mediated-apoptosis-in-ovarian-cancer
#19
Manish Kumar Pal, Shyam Pyari Jaiswar, Ashish Dwivedi, Shruti Goyal, Vinay Nand Dwivedi, Anumesh Kumar Pathak, Vinod Kumar, Pushp Lata Sankhwar, Ratan Singh Ray
Ovarian cancer is most lethal among all gynecologic malignancies. Paclitaxel (PTX) is well used chemotherapeutic regimen for cancer control; however its undesired toxicity has been always a matter of concern for clinicians. Here we used the graphene oxide coated nanotised apigenin (GO-NA) as chemo sensitizing agent to enhance the efficacy of paclitaxel to overcome the limitations of chemotherapy. GO and GO-Apigenin was prepared by modified Hummers method and the nanoparticles were characterized by dynamic light scattering and transmission electron microscopy Human ovarian adenocarcinomas (SKOV-3) cells was treated by DMSO, Group I (Control)-McCoy's 5A Medium, Group II-Paclitaxel (5nM) alone, Group III- Nanotised Apigenin (GO-NA-10μM) Group IV- Paclitaxel (5nM) + GO-NA (10μM)...
April 24, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28435453/sirna-delivery-with-pegylated-graphene-oxide-nanosheets-for-combined-photothermal-and-genetherapy-for-pancreatic-cancer
#20
Feng Yin, Kuan Hu, Yangzi Chen, Mengying Yu, Dongyuan Wang, Qianqian Wang, Ken-Tye Yong, Fei Lu, Yongye Liang, Zigang Li
Since the successful exfoliation of graphene from graphite in 2004, graphene and graphene oxide (GO) have been considered the most promising two-dimensional (2D) nanomaterials with distinguished physical and chemical characteristics and have attracted great attention in many different fields. Graphene oxide is well-known for its distinct physiochemical properties and shows only minimal cytotoxicity compared to carbon nanotubes. Until now, only limited efforts have been invested in utilizing GO for gene therapy in pancreatic cancer treatments...
2017: Theranostics
keyword
keyword
16085
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"