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https://www.readbyqxmd.com/read/27916695/the-advantage-of-hollow-mesoporous-carbon-as-a-near-infrared-absorbing-drug-carrier-in-chemo-photothermal-therapy-compared-with-ir-820
#1
Qinfu Zhao, Xiudan Wang, Yue Yan, Da Wang, Ying Zhang, Tongying Jiang, Siling Wang
In this study, we synthesized a kind of hollow mesoporous carbon (HMC) as near-infrared (NIR) nanomaterial and made a comparison between HMC and IR-820 commercially available in terms of heat generation properties and thermal stability exposed under NIR laser irradiation. The NIR-induced photothermal tests indicated that HMC had excellent heat generating capacity and remained stable after exposed to NIR laser irradiation for several times. On the contrary, the IR-820 was thermal unstable and degraded completely after exposed to NIR laser irradiation for only one time...
December 1, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27909934/current-achievements-and-future-perspectives-of-metronomic-chemotherapy
#2
REVIEW
Adriana Romiti, Rosa Falcone, Michela Roberto, Paolo Marchetti
In recent years, many anticancer drugs have been tested at metronomic dosages for a variety of tumours. Mechanisms of action attributed to metronomic chemotherapy (MCT) include antiangiogenesis, immunomodulation, direct inhibition of tumour growth, effect on tumour initiating cells and the modulation of clonal evolution. An active clinical research, aimed at testing MCT in several cancers, has been conducted over the past 15 years. However, because the majority of available results come from earlier phase II studies, mainly performed in the area of breast cancer (BC), it is clear that there are areas still to be investigated...
December 1, 2016: Investigational New Drugs
https://www.readbyqxmd.com/read/27904580/quercetin-and-ovarian-cancer-an-evaluation-based-on-a-systematic-review
#3
REVIEW
Arefe Parvaresh, Roghaye Razavi, Nahid Rafie, Reza Ghiasvand, Makan Pourmasoumi, Maryam Miraghajani
Some studies have suggested chemopreventive and therapeutic effects of quercetin (Q) on carcinogenesis. The aim of this review was to evaluate the association between Q and ovarian cancer risk among human researches and induced sensitivity to some types of chemotherapeutic drugs and antiproliferative effects of this flavonoid in the animals and cell lines studies. Data for this systematic review were achieved through searches of the MEDLINE (PubMed), Google Scholar, Science Direct, Scopus, Cochrane, SID, and Magiran databases for studies published up to May 2015...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27898041/ribosome-inactivating-proteins-from-plants-a-historical-overview
#4
REVIEW
Andrea Bolognesi, Massimo Bortolotti, Stefania Maiello, Maria Giulia Battelli, Letizia Polito
This review provides a historical overview of the research on plant ribosome-inactivating proteins (RIPs), starting from the first studies at the end of eighteenth century involving the purification of abrin and ricin, as well as the immunological experiments of Paul Erlich. Interest in these plant toxins was revived in 1970 by the observation of their anticancer activity, which has given rise to a large amount of research contributing to the development of various scientific fields. Biochemistry analyses succeeded in identifying the enzymatic activity of RIPs and allowed for a better understanding of the ribosomal machinery...
November 26, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27897092/an-investigation-on-intermolecular-interaction-between-bis-indolyl-methane-and-hsa-and-bsa-using-multi-technique-methods
#5
Hamid Dezhampanah, Roghaye Firouzi
Bis(indolyl)methane (BIM) as one of the main active components of anticancer and antibacterial drugs is applied in medicinal and extensive area of chemistry. In this research interaction of human and bovine serum albumins, as drug carriers with BIM was investigated using spectroscopy methods and molecular modeling study. The fluorescence quenching measurements at the rage of 293 to 310 K revealed that the quenching mechanisms for human and bovine serum albumins are static and dynamic processes, respectively...
November 29, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27892657/effective-delivery-of-porphyrazine-photosensitizers-to-cancer-cells-by-polymer-brush-nanocontainers
#6
Natalia Y Shilyagina, Nina N Peskova, Svetlana A Lermontova, Anna A Brilkina, Vladimir A Vodeneev, Alexander V Yakimasky, Larisa G Klapshina, Irina V Balalaeva
Efficient drug delivery can be assigned to tasks that attract the most acute attention of researchers in the field of anticancer drug design. We have reported the first case of using amphiphilic polymer brushes as nanocontainers for photosensitizer delivery to cancer cells. Regular graft-copolymers of hydrophobic polyimides with hydrophilic polymethacrylic acid side chains were loaded with photosensitive dye tetra(4-fluorophenyl)tetracyanoporphyrazine (Pz) providing a sufficiently stable homogeneous fraction of fluorescent Pz-loaded nanoparticles with a size of 100-150 nm...
November 28, 2016: Journal of Biophotonics
https://www.readbyqxmd.com/read/27889069/ru-iii-anticancer-agents-with-aromatic-and-non-aromatic-dithiocarbamates-as-ligands-loading-into-nanocarriers-and-preliminary-biological-studies
#7
S Scintilla, L Brustolin, A Gambalunga, F Chiara, A Trevisan, C Nardon, D Fregona
Since the discovery of cisplatin in the 1960s, other metal complexes have been investigated as potential antitumor agents to overcome the side-effects associated with the administration of the Pt-based drug. In line with our previous research, in this work we report the synthesis and characterization of mono- and dinuclear Ru(III) complexes with the pyrrolidinedithiocarbamate (PDT) ligand and the more sterically-hindered carbazole-dithiocarbamato ligand (CDT), to compare their properties (both at the chemical and antiproliferative level), in an attempt to assess a structure-activity rationale...
November 16, 2016: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/27888498/chitosan-nanolayered-cisplatin-loaded-lipid-nanoparticles-for-enhanced-anticancer-efficacy-in-cervical-cancer
#8
Jing-Yi Wang, Yu Wang, Xia Meng
In this study, cisplatin (CDDP)-loaded chitosan-coated solid lipid nanoparticles (SLN) was successfully formulated to treat HeLa cervical carcinoma. The formulation nanoparticles were nanosized and exhibited a controlled release of drug in physiological conditions. The blank nanoparticles exhibited an excellent biocompatibility profile indicating its suitability for cancer targeting. The incorporation of CDDP in SLN remarkably increased the cancer cell death as evident from the MTT assay. Importantly, CDDP-loaded chitosan-coated SLN (CChSLN) significantly (P < 0...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27887841/cytotoxic-activity-apoptosis-induction-and-structure-activity-relationship-of-8-or-2-aryl-3-4-dihydroisoquinolin-2-ium-salts-as-promising-anticancer-agents
#9
Fang-Jun Cao, Li-Fei Zhu, Qian Kuang, Xing-Qiang Li, Bo-Hang Zhou, Xin-Juan Yang, Le Zhou
As our continuing research, a series of 2-aryl-8-OR-3,4-dihydroisoquinolin-2-ium bromides were evaluated for cytotoxic activity on cancer cells and apoptosis induction in the present study. SAR was derived also. Among them, 23 compounds showed the higher cytotoxicity on MKN-45 cells with IC50 values of 1.99-11.3μM than a standard anticancer drug cis-platinum (IC50=11.4μM) or their natural model compound chelerythrine (IC50=12.7μM); 16 compounds possessed the medium to high activity on NB4 cells with IC50 values of 1...
November 14, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27883129/platinum-complexes-as-light-promoted-anticancer-agents-a-redefined-strategy-for-controlled-activation
#10
Koushambi Mitra
Site-specific delivery and amenable activation of prodrugs are indispensible criteria for designing novel anticancer agents. Platinum based drugs vanguard the chemotherapeutic regimes and over the years significant attention has been paid to achieve more efficacious drugs with fewer adverse effects. The switch from platinum(ii) drugs to the inert platinum(iv) analogues proved advantageous but the new prodrugs still suffered from unspecific cytotoxic actions. Thus the photoactivation of an inert platinum prodrug specifically within neoplastic cells provided the desired spatio-temporal control over drug activation by means of illumination, thereby limiting the cytotoxic events to only at the targeted tumors...
November 24, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27881431/predictive-approaches-for-drug-combination-discovery-in-cancer
#11
Seyed Ali Madani Tonekaboni, Laleh Soltan Ghoraie, Venkata Satya Kumar Manem, Benjamin Haibe-Kains
Drug combinations have been proposed as a promising therapeutic strategy to overcome drug resistance and improve efficacy of monotherapy regimens in cancer. This strategy aims at targeting multiple components of this complex disease. Despite the increasing number of drug combinations in use, many of them were empirically found in the clinic, and the molecular mechanisms underlying these drug combinations are often unclear. These challenges call for rational, systematic approaches for drug combination discovery...
November 22, 2016: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/27877185/lead-phytochemicals-for-anticancer-drug-development
#12
REVIEW
Sukhdev Singh, Bhupender Sharma, Shamsher S Kanwar, Ashok Kumar
Cancer is a serious concern at present. A large number of patients die each year due to cancer illnesses in spite of several interventions available. Development of an effective and side effects lacking anticancer therapy is the trending research direction in healthcare pharmacy. Chemical entities present in plants proved to be very potential in this regard. Bioactive phytochemicals are preferential as they pretend differentially on cancer cells only, without altering normal cells. Carcinogenesis is a complex process and includes multiple signaling events...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27877037/acute-and-subacute-toxicity-profiles-of-thymoquinone-loaded-nanostructured-lipid-carrier-in-balb-c-mice
#13
Yong Sze Ong, Latifah Saiful Yazan, Wei Keat Ng, Mustapha M Noordin, Sarah Sapuan, Jhi Biau Foo, Yin Sim Tor
BACKGROUND: Thymoquinone (TQ), the predominant active lipophilic component in Nigella sativa seed oil, has a variety of pharmacological properties such as anticancer activities. However, translation of TQ to clinical phase is still not possible due to its hydrophobic properties. This problem can be solved by encapsulating it in nanoformulations to enhance its pharmacological properties. In our previous study, TQ has been successfully encapsulated in a nanostructured lipid carrier (hereinafter referred to as TQNLC) with excellent physiochemical properties such as high encapsulation efficiency, high drug-loading capacity, particle diameter less than 100 nm, and stability up to 2 years...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27866063/anticancer-therapy-induced-vascular-toxicity-vegf-inhibition-and-beyond
#14
REVIEW
Daniela Di Lisi, Rosalinda Madonna, Concetta Zito, Enrico Bronte, Giuseppe Badalamenti, Paolo Parrella, Ines Monte, Carlo Gabriele Tocchetti, Antonio Russo, Giuseppina Novo
Cardiotoxicity induced by chemotherapeutic agents and radiotherapy is a growing problem. In recent years, an increasing number of new drugs with targeted action have been designed. These molecules, such as monoclonal antibodies and tyrosine kinase inhibitors, can cause different type of toxicities compared to traditional chemotherapy. However, they can also cause cardiac complications such as heart failure, arterial hypertension, QT interval prolongation and arrhythmias. Currently, a field of intense research is the vascular toxicity induced by new biologic drugs, particularly those which inhibit vascular endothelial growth factor (VEGF) and its receptor (VEGF-R) and other tyrosine kinases...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27858362/subcutaneous-murine-xenograft-models-a-critical-tool-for-studying-human-tumor-growth-and-angiogenesis-in-vivo
#15
Katharina M Schmidt, Edward K Geissler, Sven A Lang
Subcutaneous tumor models are widely used in angiogenesis research. Due to the relative simplicity, these mouse models are ideal for the evaluation of molecular hypotheses. In addition, these models are frequently used to assess anti-angiogenic efficacy during drug development. Finally, subcutaneous models can be performed with either xenogeneic or syngeneic tumors, both harboring advantages and drawbacks. Herein, we describe the use of subcutaneous xenograft models in anticancer research.
2016: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27852123/acanthopanax-senticosus-photochemistry-and-anticancer-potential
#16
Ting Li, Kelsey Ferns, Zi-Qiao Yan, Si-Yuan Yin, Jun-Jie Kou, Dongsheng Li, Zheng Zeng, Lin Yin, Xiaoyu Wang, Hong-Xia Bao, Yu-Jie Zhou, Qing-Hai Li, Zhan-Yi Zhao, Huidi Liu, Shu-Lin Liu
Acanthopanax senticosus (previously classified as Eleutherococcus senticosus), commonly known as Ciwujia or Siberian Ginseng, is a traditional Chinese medicine (TCM), widely used for its high medicinal value, such as antifatigue, anti-inflammation, antistress, anti-ulcer and cardiovascular functions, in China, Korea, Japan and Russia. In the past decades, researchers worldwide have conducted systematic investigations on this herb, from chemistry to pharmacology, and a large number of chemical components have been characterized for their significant pharmacological effects...
November 16, 2016: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/27852122/pinus-massoniana-bark-extract-structure-activity-relationship-and-biomedical-potentials
#17
Jiao Feng, Xiao-Lu Zhang, Ying-Ya Li, Ying-Yu Cui, Yi-Han Chen
Proanthocyanidins (PAs) belong to the condensed tannin subfamily of natural flavonoids. Recent studies have shown that the main bioactive compounds of Pinus massoniana bark extract (PMBE) are PAs, especially the proanthocyanidins B series, which play important roles in cell cycle arrest, apoptosis induction and migration inhibition of cancer cells in vivo and in vitro. PA-Bs are mixtures of oligomers and polymers composed of flavan-3-ol, and the relationship between their structure and corresponding biomedical potentials is summarized in this paper...
November 16, 2016: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/27846724/-the-role-of-pd-1-pd-l1-signaling-pathway-in-antitumor-immune-response
#18
P Zatloukalová, M Pjechová, S Babčanová, T R Hupp, B Vojtěšek
BACKGROUND: Correct function of the immune system depends on close cooperation between stimulation and inhibition signals, which protect an organism from outside microorganisms and other agents, but also protects healthy tissues against possible self-destructing attacks of the immune system. However, the inhibitory mechanisms can be abused by cancer cells that evade immune responses and, in fact, they help develop cancer. Therefore, one of the characteristics of cancer cells is the ability to evade immune recognition...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/27834805/tapirira-guianensis-aubl-extracts-inhibit-proliferation-and-migration-of-oral-cancer-cells-lines
#19
Renato José Silva-Oliveira, Gabriela Francine Lopes, Luiz Fernando Camargos, Ana Maciel Ribeiro, Fábio Vieira Dos Santos, Richele Priscila Severino, Vanessa Gisele Pasqualotto Severino, Ana Paula Terezan, Ralph Gruppi Thomé, Hélio Batista Dos Santos, Rui Manuel Reis, Rosy Iara Maciel de Azambuja Ribeiro
Cancer of the head and neck is a group of upper aerodigestive tract neoplasms in which aggressive treatments may cause harmful side effects to the patient. In the last decade, investigations on natural compounds have been particularly successful in the field of anticancer drug research. Our aim is to evaluate the antitumor effect of Tapirira guianensis Aubl. extracts on a panel of head and neck squamous cell carcinoma (HNSCC) cell lines. Analysis of secondary metabolites classes in fractions of T. guianensis was performed using Nuclear Magnetic Resonance (NMR)...
November 8, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27829985/potential-therapeutic-strategies-for-hypertension-exacerbated-cardiotoxicity-of-anticancer-drugs
#20
REVIEW
Robin K Kuriakose, Rakesh C Kukreja, Lei Xi
Despite their recognized cardiotoxic effects, anthracyclines remain an essential component in many anticancer regimens due to their superior antitumor efficacy. Epidemiologic data revealed that about one-third of cancer patients have hypertension, which is the most common comorbidity in cancer registries. The purpose of this review is to assess whether anthracycline chemotherapy exacerbates cardiotoxicity in patients with hypertension. A link between hypertension comorbidity and anthracycline-induced cardiotoxicity (AIC) was first suggested in 1979...
2016: Oxidative Medicine and Cellular Longevity
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