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folic acid and cancer

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https://www.readbyqxmd.com/read/27901355/folic-acid-conjugated-and-ag-carrying-organoclay-nanoparticles-and-their-response-to-l929-fibroblast-and-dld-1-cancer-cells
#1
Zakir M O Rzayev, Sevda Khalilova, Kouroush Salimi
This work presents the synthesis and characterization of intercalated nanocomposites (NCs) from dispersed water solution blends of octadecyl amine-montmorillonite (ODA-MMT) (NC-0), folic acid (FA) conjugated ODA-MMT (NC-1) and Ag-MMT clay as a stable silver carrying agent (NC-2). The composition, chemical/physical and morphology of NCs with in situ intercalating nanostructures were investigated. Effect of organoclay, FA and Ag-MMT on L929 fibroblast (control), human colon carcinoma (DLD-1) cell lines, and the cytotoxicity, apoptosis and necrosis degree were estimated via WST-1/hemocytometric, double staining (as a ribonuclease A enzyme based method) and fluorescence microscopy methods in dose-dependent manner...
November 30, 2016: Journal of Microencapsulation
https://www.readbyqxmd.com/read/27899044/folic-acid-modified-and-functionalized-cus-nanocrystal-based-nanoparticles-for-combined-tumor-chemo-and-photothermal-therapy
#2
Zhu Xiali, Yingjie Zhang, Heqing Huang, Huijuan Zhang, Lin Hou, Zhenzhong Zhang
Recent studies have identified that CuS nanocrystal (CuS NCs) could be used as a new class of promising photo-thermal agents due to their excellent plasmonic absorption abilities in a wide near-infrared (NIR) region. However, most of nanocarriers lack target capacity for combining chemotherapy and photothermal therapy effects. Herein, we reported chitosan (CS)-encapsulated and folic acid (FA)-modified nanoparticles (NPs) simultaneously loading with functionalized CuS NCs and docetaxel (DTX) (FA-DTX-PVP/CuS-NPs)...
November 30, 2016: Journal of Drug Targeting
https://www.readbyqxmd.com/read/27894196/development-and-characterization-of-folic-acid-conjugated-chitosan-nanoparticles-for-targeted-and-controlled-delivery-of-gemcitabinein-lung-cancer-therapeutics
#3
Fengqiang Wang, Yan Wang, Qingzhu Ma, Yuan Cao, Bo Yu
The present study was designed to investigate the tumor-targeting potential of gemcitabine (GEM)-loaded surface-tailored chitosan (CS)/poly (ethylene glycol) nanoparticles (FA-PEG-GEM-NPs). The nanoparticles encapsulated with GEM were prepared, characterized, and tethered with folic acid. The developed formulations were characterized with respect to particle size/poly-dispersity index, shape, and zeta potential analysis. The in vitro study shows the sustained drug-release kinetics during 48 h. The present result shows remarkable cytotoxicity rendered by GEM when delivered through FA-PEG-GEM-NPs formulation...
November 29, 2016: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27892656/cytochrome-p450-bioconjugate-as-a-nanovehicle-for-improved-chemotherapy-treatment
#4
Katrin Quester, Karla Juarez-Moreno, Isamel Secundino, Yvonne Roseinstein, Karla P Alejo, Alejandro Huerta-Saquero, Rafael Vazquez-Duhalt
Cancer is still a growing public health problem, especially breast cancer that is one of the most important cancers in women. Chemotherapy, even though a successful treatment, is accompanied by severe side effects. Moreover, most of the drugs used for chemotherapy are administered as prodrugs and need to be transformed to the active form by cytochromes P450 (CYPs). In addition, increasing numbers of cancer tissues show lower CYP activity than the surrounding healthy tissues in which prodrugs are preferentially activated causing cytotoxicity...
November 28, 2016: Macromolecular Bioscience
https://www.readbyqxmd.com/read/27883070/ph-responsive-virus-like-nanoparticles-with-enhanced-tumour-targeting-ligands-for-cancer-drug-delivery
#5
Roya Biabanikhankahdani, Noorjahan Banu Mohamed Alitheen, Kok Lian Ho, Wen Siang Tan
Multifunctional nanocarriers harbouring specific targeting moieties and with pH-responsive properties offer great potential for targeted cancer therapy. Several synthetic drug carriers have been studied extensively as drug delivery systems but not much information is available on the application of virus-like nanoparticles (VLNPs) as multifunctional nanocarriers. Here, we describe the development of pH-responsive VLNPs, based on truncated hepatitis B virus core antigen (tHBcAg), displaying folic acid (FA) for controlled drug delivery...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27875950/targeted-delivery-of-cabazitaxel-by-conjugation-to-albumin-peg-folate-nanoparticles-using-a-cysteine-acrylate-linker-and-simple-synthesis-conditions
#6
Mohammad Kazem Khoeeniha, Mehdi Esfandyari-Manesh, Hossein Behrouz, Mohsen Amini, Behrang Shiri Varnamkhasti, Fatemeh Atyabi, Rassoul Dinarvand
Cabazitaxel (CBZ) is a new taxane approved by the FDA for treatment of castration-resistant prostate cancer not responding to docetaxel. However, CBZ is not a suitable substrate for p-glycoprotein 60, an efflux pump which transports anticancer drugs out of malignant cells and is therefore a promising drug for treatment of multidrug resistant tumors. Similar to other taxanes, the presence of Tween 80 in the CBZ formulation shows that it is insoluble in water. Therefore, to increase the solubility and circulation time, a CBZ-albumin conjugate was synthesized...
November 22, 2016: Current Drug Delivery
https://www.readbyqxmd.com/read/27872483/targeted-delivery-system-for-cancer-cells-consist-of-multiple-ligands-conjugated-genetically-modified-ccmv-capsid-on-doxorubicin-gnps-complex
#7
Indu Barwal, Rajiv Kumar, Suneel Kateriya, Amit Kumar Dinda, Subhash Chandra Yadav
Targeted nano-delivery vehicles were developed from genetically modified Cowpea chlorotic mottle virus (CCMV) capsid by ligands bioconjugation for efficient drug delivery in cancer cells. RNA binding (N 1-25aa) and β-hexamer forming (N 27-41aa) domain of capsid was selectively deleted by genetic engineering to achieve the efficient in vitro assembly without natural cargo. Two variants of capsids were generated by truncating 41 and 26 amino acid from N terminus (NΔ41 and NΔ26) designated as F1 and F2 respectively...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27870961/design-and-construction-of-multifunctional-hyperbranched-polymers-coated-magnetite-nanoparticles-for-both-targeting-magnetic-resonance-imaging-and-cancer-therapy
#8
Asemeh Mashhadi Malekzadeh, Ali Ramazani, Seyed Jamal Tabatabaei Rezaei, Hassan Niknejad
Magnetic drug targeting is a drug delivery strategy that can be used to improve the therapeutic efficiency on tumor cells and reduce the side effects on normal cells and tissues. The aim in this study is designing a novel multifunctional drug delivery system based on superparamagnetic nanoparticles for cancer therapy. Magnetic nanoparticles were synthesized by coprecipitation of iron oxide followed by coating with poly citric acid (PCA) dendritic macromolecules via bulk polymerization strategy. It was further surface-functionalized with poly(ethylene glycol) (PEG) and then to achieve tumor cell targeting property, folic acid was further incorporated to the surface of prepared carriers via a facile coupling reaction between the hydroxyl end group of the PEG and the carboxyl group of folic acid...
November 10, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27870005/hiv-protease-inhibitors-for-the-treatment-of-cancer-repositioning-hiv-protease-inhibitors-while-developing-more-potent-no-hybridized-derivatives
#9
REVIEW
Danijela Maksimovic-Ivanic, Paolo Fagone, James McCubrey, Klaus Bendtzen, Sanja Mijatovic, Ferdinando Nicoletti
The possible use of HIV protease inhibitors (HIV-PI) as new therapeutic option for the treatment of cancer primarily originated from their success in treating HIV-related Kaposi's sarcoma (KS). While these findings were initially attributed to immune reconstitution and better control of oncogenic viral infections, the number of reports on solid tumors, KS, lymphoma, fibrosarcoma, multiple myeloma, and prostate cancer suggest other mechanisms for the anti-neoplastic activity of PIs. However, a major drawback for the possible adoption of HIV-PIs in the therapy of cancer relies on their relatively weak anticancer potency, and important side effects...
November 21, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27868444/-plant-based-diets-a-review
#10
Zoltán Szabó, Attila Erdélyi, Andrea Gubicskóné Kisbenedek, Tamás Ungár, Éva Lászlóné Polyák, Szilvia Szekeresné Szabó, Réka Erika Kovács, László Bence Raposa, Mária Figler
Plant-based diet is an old-new trend in nutrition. In this review based on a historical context, we wish to introduce this popular nutritional trend. Our aim is to present plant-based diet as a primary measure for prevention. We intend to critically analyse some past stereotypes related to plant-based diet - whose main components include fruits, vegetables, whole grains, legumes, nuts and seeds - according to the literature (e.g. protein, vitamin B12, folic acid, and iron intake) by doing so we wish to create an adequate conceptual basis for its interpretation...
November 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27866122/synthesis-characterization-and-radiolabeling-of-folic-acid-modified-nanostructured-lipid-carriers-as-a-contrast-agent-and-drug-delivery-system
#11
Eser Ucar, Serap Teksoz, Cigdem Ichedef, Ayfer Yurt Kilcar, E Ilker Medine, Kadir Ari, Yasemin Parlak, B Elvan Sayit Bilgin, Perihan Unak
Nanostructured lipid carriers (NLCs) are the new generation of solid lipid drug delivery systems. Their suitability as contrast agents for gamma scintigraphy is an attracting major attention. The aim of current study was to prepare surface modified nanostructured lipid carrier system for paclitaxel (PTX) with active targeting and imaging functions. In accordance with the purpose of study, PTX loaded nanostructured lipid carriers (NLCs) prepared, modified with a folate derivative and radiolabeled with technetium-99m tricarbonyl complex ((99m)Tc(CO)3(+))...
January 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/27858003/a-drug-loaded-nanoscale-metal-organic-framework-with-a-tumor-targeting-agent-for-highly-effective-hepatoma-therapy
#12
Yan-An Li, Xiao-Dong Zhao, Hai-Peng Yin, Gong-Jun Chen, Song Yang, Yu-Bin Dong
Drug delivery systems with targeting agents for precise drug release in cancer therapy are very significant and important. Herein, we report the rational design and synthesis of a DOX (doxorubicin) loaded UiO-68-type of nanoscale metal-organic framework (NMOF) with a tumor targeting agent (folic acid, FA), DOX@UiO-68-FA (3), as a multifunctional drug delivery system for hepatoma (Hep G2) therapy via tail-vein injection. Compared to free DOX, FA-unloaded DOX@Mi-UiO-68 (2), 3 exhibits a much higher antitumor efficacy, which was confirmed by cell imaging, standard 3-(4,5-dimethylthiahiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) proliferation and in vivo experiments...
December 1, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27853366/development-of-plga-lipid-nanoparticles-with-covalently-conjugated-indocyanine-green-as-a-versatile-nanoplatform-for-tumor-targeted-imaging-and-drug-delivery
#13
Yu Xin, Tie Liu, Chenlong Yang
We have prepared novel poly(d,l-lactide-co-glycolide) (PLGA) lipid nanoparticles (PNPs) that covalently conjugate folic acid (FA) and indocyanine green (ICG), in addition to encapsulating resveratrol (RSV) (FA-RSV/ICG-PLGA-lipid NPs, abbreviated as FA-RIPNPs); these nanoparticles have been developed for simultaneous targeted delivery of anticancer drug and fluorescence imaging. The FA-RIPNPs, with an average particle size of 92.8±2.1 nm, were prepared by a facile self-assembly-and-nanoprecipitation method, and they showed excellent stability and biocompatibility characteristics...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27846450/folic-acid-and-trastuzumab-conjugated-redox-responsive-random-multiblock-copolymeric-nanocarriers-for-breast-cancer-therapy-in-vitro-and-in-vivo-studies
#14
Arun Kumar, Shantanu V Lale, M R Aji Alex, Veena Choudhary, Veena Koul
The study represents synthesis, characterization and biological evaluation of redox responsive polymeric nanoparticles based on random multiblock copolymer for doxorubicin delivery in breast cancer. The random multiblock copolymer was synthesized via ring opening polymerization of lactide with polyethylene glycol to form triblock copolymer followed by isomerization polymerization of the triblock copolymer and 2-hydroxyethyl disulfide with the help of hexamethylene diisocynate in presence of dibutyltin dilaurate as a catalyst...
November 6, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27843313/salvianolic-acid-b-protects-against-myocardial-damage-caused-by-nanocarrier-tio2-and-synergistic-anti-breast-carcinoma-effect-with-curcumin-via-codelivery-system-of-folic-acid-targeted-and-polyethylene-glycol-modified-tio2-nanoparticles
#15
Lingling Ding, Jiawei Li, Rui Huang, Zhidong Liu, Chunhua Li, Shaozi Yao, Jinyan Wang, Dongli Qi, Nan Li, Jiaxin Pi
Targeted delivery by the folate ligand is an effective way to enhance an anti-breast carcinoma effect, due to its high affinity for the folate receptor, which is overexpressed in many tumor cells. In this study, we firstly synthesized a folic acid (FA)-targeted and polyethylene glycol (PEG)-modified TiO2 nanocarrier. Then, an FA-PEG-TiO2 nanoparticle (NP) codelivery system loaded with curcumin and salvianolic acid B were prepared by emulsion evaporation-solidification at low temperature. The obtained folate-targeted NPs (FA-NPs) showed more cytotoxicity on MCF7 cells and MDA-MB-231 cells than a nontargeted NP group...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27825867/folic-acid-decorated-and-pegylated-plga-nanoparticles-for-improving-the-antitumour-activity-of-5-fluorouracil
#16
Mazen M El-Hammadi, Ángel V Delgado, Consolación Melguizo, José C Prados, José L Arias
5-Fluorouracil (5-FU) is a broad spectrum cytotoxic agent being used in chemotherapy of malignancies. However, 5-FU shows a number of limitations like short half-life, non-selective biodistribution, and the development of drug resistances by tumour cells. It was investigated the potential use of folic acid-decorated and PEGylated poly(D,L-lactide-co-glycolide) nanoparticles (FOL-PEG-PLGA NPs) for the targeted delivery of 5-FU to colon and breast cancers. PEG-PLGA and FOL-PEG-PLGA conjugates were synthesized and characterized...
November 5, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27824072/superparamagnetic-fe3o4-peg2k-fa-ce6-nanoprobes-for-in-vivo-dual-mode-imaging-and-targeted-photodynamic-therapy
#17
Ting Yin, Peng Huang, Guo Gao, Joseph G Shapter, Yulan Shen, Rongjin Sun, Caixia Yue, Chunlei Zhang, Yanlei Liu, Sui Zhou, Daxiang Cui
The development of targeted nanoprobes is a promising approach to cancer diagnostics and therapy. In the present work, a novel multifunctional photo/magnet-diagnostic nanoprobe (MNPs-PEG2K-FA@Ce6) has been developed. This nanoprobe is built using folic acid (FA), bifunctional polyethylene glycol (PEG2K) and photosensitizer chlorin e6 (Ce6). The MNPs-PEG2K-FA@Ce6 nanoprobes are superparamagnetic, can be synthesized on a large scale by a one-pot hydrothermal process without further surface modification and are stable in an aqueous environment for eight months...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27821343/synergistic-effect-of-chemo-photothermal-for-breast-cancer-therapy-using-folic-acid-fa-modified-zinc-oxide-nanosheet
#18
Karuppaiya Vimala, Krishnamurthy Shanthi, Shenbagamurthy Sundarraj, Soundarapandian Kannan
Modern therapies for malignant breast cancer in clinics are not efficacious and often result in deprived patient compliance owing to squat therapeutic effectiveness and strong systemic side effects. In order to overcome this, we combined chemo-photothermal targeted therapy of breast cancer within one novel multifunctional drug delivery system. Folic Acid-functionalized polyethylene glycol coated Zinc Oxide nanosheet (FA-PEG-ZnO NS), was successfully synthesized, characterized and introduced to the drug delivery field for the first time...
October 26, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27819368/supramolecular-cyclodextrin-nanocarriers-for-chemo-and-gene-therapy-towards-the-effective-treatment-of-drug-resistant-cancers
#19
Xiaohong Chen, Ying-Kun Qiu, Cally Owh, Xian Jun Loh, Yun-Long Wu
A tumor active targeting β-cyclodextrin based nanocarrier β-NC-OEI-SS-FA was designed by the modification of star shaped cationic derivatives β-NC-OEI with folic acid through a disulfide bond, to co-deliver chemotherapeutic paclitaxel and the Nur77 gene for overcoming Bcl-2 mediated non-pump resistance by an "enemy to friend" strategy for potential drug resistant cancer therapy.
December 7, 2016: Nanoscale
https://www.readbyqxmd.com/read/27808311/fabrication-and-bioconjugation-of-b-iii-and-cr-iii-co-doped-znga2o4-persistent-luminescent-nanoparticles-for-dual-targeted-cancer-bioimaging
#20
Huai-Xin Zhao, Cheng-Xiong Yang, Xiu-Ping Yan
Persistent luminescent nanoparticles (PLNPs) show great potential in realizing precision imaging due to the absence of in situ excitation and no background interference. However, the current PLNP-based tumour imaging is usually achieved by single targeting or passive targeting strategies, and thus it lacks high specificity and affinity for efficient persistent luminescence imaging in vivo. Herein we report the bioconjugation of multiple targeting ligands on the surface of PLNPs for dual-targeted bioimaging to improve the specificity and affinity of the PLNP nanoprobe for in vitro and in vivo bioimaging...
December 7, 2016: Nanoscale
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