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Anticancer Effect

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https://www.readbyqxmd.com/read/30114645/lycorine-a-prospective-natural-lead-for-anticancer-drug-discovery
#1
REVIEW
Mridul Roy, Long Liang, Xiaojuan Xiao, Peifu Feng, Mao Ye, Jing Liu
Nature is the most abundant source for novel drug discovery. Lycorine is a natural alkaloid with immense therapeutic potential. Lycorine is active in a very low concentration and with high specificity against a number of cancers both in vivo and in vitro and against various drug-resistant cancer cells. This review summarized the therapeutic effect and the anticancer mechanisms of lycorine. At the same time, we have discussed the pharmacology and comparative structure-activity relationship for the anticancer activity of this compound...
August 13, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/30114639/honokiol-an-anticancer-lignan
#2
REVIEW
Abdur Rauf, Seema Patel, Muhammad Imran, AneelaMaalik, Muhammad Umair Arshad, Farhan Saeed, Yahia N Mabkhot, Salim S Al-Showiman, Nazir Ahmad, Eman Elsharkawy
BACKGROUND: Honokiol ((3',5-di-(2-propenyl)-1,1'-biphenyl-2,2'-diol), a lignan, is a promising antitumor compound, having exerted activity against a number of human cancer cell lines. Honokiol has inhibitory role on the proliferation, invasion and survival of cancer cells in in vitro as well as in vivo studies. It interferes with signaling pathways components in order to elicit the anticancer effect. SCOPE AND APPROACH: In present review, the published data on the efficacy of honokiol against various cancer cell lines and tumor-bearing animal models has been presented and discussed...
August 13, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/30114451/reduction-sensitive-mixed-micelles-for-selective-intracellular-drug-delivery-to-tumor-cells-and-reversal-of-multidrug-resistance
#3
Xiao Du, Shaoping Yin, Fang Zhou, Xu Du, Jianan Xu, Xiaochen Gu, Guangji Wang, Juan Li
Stimuli-responsive nanocarriers have demonstrated their potentials in optimizing chemotherapeutics and anticancer efficacy. In this study, a mixed micelle system (THSP) was prepared by combining reduction-sensitive hyaluronic acid-poly(lactide) (HA-ss-PLA) conjugates and D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS), with objective to achieve multiple functionalities of selective intracellular rapid release, active targeting capability and multidrug resistance reversal. The mixed micelle possessed desirable particle diameter of 124...
August 13, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/30113849/synephrine-hydrochloride-suppresses-esophageal-cancer-tumor-growth-and-metastatic-potential-through-inhibition-of-galectin-3-akt-erk-signaling
#4
Wen Wen Xu, Can-Can Zheng, Yunna Huang, Wen-You Chen, Qing-Sheng Yang, Jia-Yi Ren, Yue-Ming Wang, Qing-Yu He, Hua-Xin Liao, Bin Li
A library consisting of 429 food-source compounds was used to screen the natural products with anticancer property in esophageal squamous cell carcinoma (ESCC). We demonstrated for the first time that synephrine, an active compound isolated from leaves of citrus trees, markedly suppressed cell proliferation (Inhibition rate with 20 µM synephrine at day 5: 71.1 ± 5.8% and 75.7 ± 6.2% for KYSE30 and KYSE270, respectively) and colony formation (Inhibition rate with 10 µM synephrine: 86.5 ± 5.9% and 82.3 ± 4...
August 16, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/30113819/click-chemistry-assisted-synthesis-of-a-%C3%AE-d-galactose-targeted-sio-2-rc-shell-core-structure-as-a-nanoplatform-for-metal-based-complex-delivery
#5
Xiuling Xu, Fan Hu, Qi Shuai
A facile reversed-phase microemulsion method was used to synthesize shell-core nanospheres of SiO2 @RCs (SiO2 -encapsuled rare-earth metal complexes). β-d-Galactose was then grafted onto the surfaces of the nanospheres through the copper(I)-catalyzed azide-alkyne cycloaddition click reaction for targeted delivery. The chemical characteristics and surface profiles of the nanocarriers were investigated by Fourier transform infrared spectroscopy, dynamic light scattering, transmission electron microscopy, and scanning electron microscopy...
August 16, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/30113000/modulation-of-mitochondrial-and-epigenetic-targets-by-polyphenols-rich-extract-from-araucaria-angustifolia-in-larynx-carcinoma
#6
Catia Santos Branco, Angela Duong, Alencar K Machado, Gustavo Scola, Ana C Andreazza, Mirian Salvador
Araucaria angustifolia extract (AAE) is a polyphenol-rich extract that has gained interest as a natural anticancer agent. Recent work suggests that AAE induces oxidative damage and apoptosis through its action on decreasing complex I activity of the mitochondrial electron transport chain (ETC). In the present study, we aimed to further examine the specific targets by which AAE exerts pro-apoptotic effects in HEp-2 cancer cells. Specifically, the effect of AAE on the: 1) levels of pyruvate dehydrogenase was assessed by ELISA assay; 2) levels of mitochondrial ETC complexes, focusing on complex I at the gene transcript and protein level relevant to ROS generation was evaluated by multiplex ELISA followed by qRT-PCR and immunoblotting; 3) mitochondrial membrane potential (ΔΨm) was assessed by MitoTracker Red CMXRos; and 4) chemical variations on DNA was evaluated by dot-blotting in HEp-2 cells...
August 16, 2018: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/30112929/overcoming-drug-resistant-lung-cancer-by-paclitaxel-loaded-hyaluronic-acid-coated-liposomes-targeted-to-mitochondria
#7
Yongfeng Tian, Hua Zhang, Yanmei Qin, Dong Li, Yang Liu, Hao Wang, Li Gan
As a major cause for the inefficiency of cancer chemotherapy, multidrug resistance (MDR) has become a major barrier to cancer treatment. Mitochondrion-orientated transportation of smart liposomes has been developed as a promising strategy to deliver anticancer drugs directly to tumor sites and actively target the mitochondria, so that drugs can interfere with mitochondrial function and facilitate cell apoptosis, overcoming MDR. Herein, we report a novel dual-functional paclitaxel (PTX) liposome system possessing both CD44 targeting and mitochondrial targeting properties to enhance drug accumulation in mitochondria and trigger apoptosis of drug-resistant cancer cells...
August 16, 2018: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/30112527/half-sandwich-os-ii-and-ru-ii-bathophenanthroline-complexes-anticancer-drug-candidates-with-unusual-potency-and-a-cellular-activity-profile-in-highly-invasive-triple-negative-breast-cancer-cells
#8
Jitka Pracharova, Vojtech Novohradsky, Hana Kostrhunova, Pavel Štarha, Zdeněk Trávníček, Jana Kasparkova, Viktor Brabec
There is an urgent need to discover new, selective compounds to add to the limited arsenal of chemotherapeutics displaying selective toxicity for aggressive triple-negative breast cancer (TNBC) cells. The effect of two, recently developed metal-based half-sandwich complexes [Os(η6-pcym)(bphen)(dca)]PF6 (Os-dca) and [Ru(η6-pcym)(bphen)(dca)]PF6 (Ru-dca) [pcym = 1-methyl-4-(propan-2-yl)benzene (p-cymene); bphen = 4,7-diphenyl-1,10-phenanthroline (bathophenanthroline); dca = dichloroacetate] on triple-negative breast cancer cells MDA-MB-231 is reported...
August 16, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/30112111/chloroquine-plays-a-cell-dependent-role-in-the-response-to-treatment-of-pancreatic-adenocarcinoma
#9
María Inés Molejon, Mirna Swayden, Daniele Fanale, Jennifer Bintz, Odile Gayet, Philippe Soubeyran, Juan Iovanna
In this study, our aim is to assess the role played by autophagy and its inhibition in the different PDAC cellular compartments, and its involvement in chemo-resistance using primary human pancreatic cancer-derived cells (PCC) and Cancer Associated Fibroblasts (CAF). Autophagy flux, as measured by LC3-I and -II in the presence of Chloroquine, showed a variable level in PCC and CAFs. We found no correlation between autophagy level and degree of tumor differentiation. Association of Chloroquine with gemcitabine, 5FU, oxaliplatin, irinotecan and docetaxel revealed that its effect on survival is cell- and drug-dependent in vitro and in vivo ...
July 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/30112108/mebendazole-stimulates-cd14-myeloid-cells-to-enhance-t-cell-activation-and-tumour-cell-killing
#10
Jenny Rubin, Sharmineh Mansoori, Kristin Blom, Malin Berglund, Lena Lenhammar, Claes Andersson, Angelica Loskog, Mårten Fryknäs, Peter Nygren, Rolf Larsson
Mebendazole (MBZ) was recently shown to induce a tumor suppressive M1 phenotype in THP-1 monocytes and macrophages. In the present study the immune effects of MBZ was further investigated using human peripheral blood mononuclear cells (PBMCs) co-cultured with tumour cells. The Biomap platform was used to screen for biomarkers induced from MBZ exposed co-cultures of T-cell receptor activated PBMCs, HT29 colon cancer cells and either human fibroblasts or human umbilical vein endothelial cells (HUVEC) cells. In these co-culture systems MBZ at 0...
July 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/30112106/selinexor-reduces-the-expression-of-dna-damage-repair-proteins-and-sensitizes-cancer-cells-to-dna-damaging-agents
#11
Trinayan Kashyap, Christian Argueta, Thaddeus Unger, Boris Klebanov, Sophia Debler, William Senapedis, Marsha L Crochiere, Margaret S Lee, Michael Kauffman, Sharon Shacham, Yosef Landesman
Introduction: The goal of this study was to examine the effects of selinexor, an inhibitor of exportin-1 mediated nuclear export, on DNA damage repair and to evaluate the cytotoxic effects of selinexor in combination with DNA damaging agents (DDAs) in cancer cells. Results: Selinexor reduced the expression of DNA damage repair (DDR) proteins. This did not induce significant DNA damage in tested cell lines. Inhibition of DDR protein expression resulted in enhanced cancer cell death when cells were pretreated with DDAs...
July 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/30112023/in-vitro-screening-of-cytotoxic-activity-of-euphol-from-euphorbia-tirucalli-on-a-large-panel-of-human-cancer-derived-cell-lines
#12
Viviane Aline Oliveira Silva, Marcela Nunes Rosa, Aline Tansini, Renato J S Oliveira, Olga Martinho, João Paulo Lima, Luiz F Pianowski, Rui M Reis
A large number of classic antineoplastic agents are derived from plants. Euphorbia tirucalli L. (Euphorbiaceae) is a subtropical and tropical plant, used in Brazilian folk medicine against many diseases, including cancer, yet little is known about its true anticancer properties. The present study evaluated the antitumor effect of the tetracyclic triterpene alcohol, euphol, the main constituent of E. tirucalli in a panel of 73 human cancer lines from 15 tumor types. The biological effect of euphol in pancreatic cells was also assessed...
August 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/30111752/combination-effect-of-silver-nanoparticles-and-histone-deacetylases-inhibitor-in-human-alveolar-basal-epithelial-cells
#13
Sangiliyandi Gurunathan, Min-Hee Kang, Jin-Hoi Kim
Although many treatment strategies have been reported for lung disease, the mechanism of combination therapy using silver nanoparticles (AgNPs) and histone deacetylases inhibitors (HDACi) remains unclear. Therefore, innovative treatment strategies are essential for addressing the therapeutic challenges of this highly aggressive lung cancer. AgNPs and HDACi seem to be the best candidates for anticancer therapy because of their anti-proliferative effect in a variety of cancer cells. First, we synthesized AgNPs using wogonin as a reducing and stabilizing agent, following which the synthesized AgNPs were characterized by various analytical techniques...
August 15, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/30111296/targeting-colorectal-cancer-cell-metabolism-through-development-of-cisplatin-and-metformin-nano-cubosomes
#14
Mona M Saber, Abdulaziz M Al-Mahallawi, Noha N Nassar, Björn Stork, Samia A Shouman
BACKGROUND: Colorectal cancer (CRC) remains a leading cause of death worldwide. Utilizing cisplatin in CRC is correlated with severe adverse effects and drug-resistance. Combined anticancer drug-treatment, along with, their enhanced delivery, can effectively kill cancer through multiple pathways. Nano-cubosomes are emerging as nanocarriers for anticancer therapies, hence, we constructed nano-cubosomes bearing cisplatin and cisplatin-metformin combination for investigation on HCT-116 cells...
August 15, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30111169/plitidepsin-a-potential-new-treatment-for-relapsed-refractory-multiple-myeloma
#15
Michael Leisch, Alexander Egle, Richard Greil
Plitidepsin is a marine-derived anticancer compound isolated from the Mediterranean tunicate Applidium albicans. It exerts pleiotropic effects on cancer cells, most likely by binding to the eukaryotic translation eEF1A2. This ultimately leads to cell-cycle arrest, growth inhibition and induction of apoptosis via multiple pathway alterations. Recently, a Phase III randomized trial in patients with relapsed/refractory multiple myeloma reported outcomes for plitidepsin plus dexamethasone compared with dexamethasone...
August 16, 2018: Future Oncology
https://www.readbyqxmd.com/read/30111018/-preparation-of-hispidulin-chitosan-microsphere-and-its-antiproliferation-effect-in-vitro
#16
Xia Li, Ya-Hua Wang, Tian-Ci Yan, Hao-Lun Xu, He-Lu Yan, Lan-Yu He, Lan-Yu He, Xue Ying
Hispidulin(HPDL) chitosan microspheres were prepared in this study to deliver HPDL to the lesion sitevia intravenous injection, and further evaluate their anticancer effects in vitro and the growth inhibition effect on A549 cells spheroids. HPDL chitosan microspheres were prepared by emulsion crosslinking method with chitosan as a drug carrier and the amount of HPDL was determined by high performance liquid chromatography (HPLC). The morphology of microspheres was observed under laser scanning confocal microscope...
July 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/30110614/the-molecularly-imprinted-polymer-essentials-curation-of-anticancer-ophthalmic-and-projected-gene-therapy-drug-delivery-systems
#17
REVIEW
Christian Antonio Tuwahatu, Chi Chung Yeung, Yun Wah Lam, Vellaisamy Arul Lenus Roy
The development of polymeric materials as drug delivery systems has advanced from systems that rely on classical passive targeting to carriers that can sustain the precisely controlled release of payloads upon physicochemical triggers in desired microenvironment. Molecularly imprinted polymers (MIP), materials designed to capture specific molecules based on their molecular shape and charge distribution, are attractive candidates for fulfilling these purposes. In particular, drug-imprinted polymers coupled with active targeting mechanisms have been explored as potential drug delivery systems...
August 12, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/30110124/antihypertensive-drugs-and-prostate-cancer-survival-after-radical-prostatectomy-in-finland-a-nationwide-cohort-study
#18
Eerik Ee Santala, Antti Rannikko, Teemu J Murtola
Antihypertensive (anti-HT) drugs targeting renin-angiotensin-aldosterone (RAA)- system have been associated with improved prostate cancer (PCa)-specific survival. Challenge is that often multiple drugs are used simultaneously. We evaluated the association between use of anti-HT drugs and PCa survival among 14,422 surgically treated Finnish PCa patients. Information on drug purchases was obtained from a national prescription database. We used Cox regression to calculate hazard ratios (HRs) and 95% confidence intervals (95% CIs) for risk of PCa death and initiation of androgen deprivation therapy (ADT) with adjustment for age, tumor extent, use of statins and for Charlson Comorbidity Index...
August 15, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/30109780/apatinib-targets-both-tumor-and-endothelial-cells-in-hepatocellular-carcinoma
#19
Chaoxu Yang, Shukui Qin
Hepatocellular carcinoma (HCC) is one of the most commonly diagnosed malignancies worldwide with poor prognosis and tends to be hypervascular. Aberrant expression of the vascular endothelial growth factor 2 (VEGFR-2) has been implicated in the progression of HCC and represents a valid target for anticancer therapy. Apatinib, a small molecule inhibitor of VEGFR-2 tyrosine kinase, shows strong antitumor activity in various tumors. This study is designed to evaluate the activity of apatinib on both human umbilical vein vascular endothelial cells (HUVECs) and HCC cell lines (in vitro and in vivo), and also to investigate the characteristics and possible mechanisms underlying these effects by molecular biology methods...
August 14, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/30109630/rapid-and-selective-screening-method-for-isolation-and-identification-of-carotenoid-producing-bacteria
#20
Dalal Asker, Tarek S Awad, Teruhiko Beppu, Kenji Ueda
Carotenoids are naturally occurring yellow to red pigments with many biological activities including antioxidant, anticancer, anti-inflammatory, membrane stabilizers, and precursors for vitamin A. These biological activities are linked with many health benefits (e.g., anticarcinogenic activity, prevention of chronic diseases, etc.), which grew the interest of several industrial sectors especially in food, feed, nutraceuticals, cosmetics, and pharmaceutical industries. The production of natural carotenoids from microbial sources such as bacteria can help meet the growing global market of carotenoids estimated at $1...
2018: Methods in Molecular Biology
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