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Cancer curcumin

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https://www.readbyqxmd.com/read/28345465/demethoxycurcumin-inhibited-human-epithelia-ovarian-cancer-cells-growth-via-up-regulating-mir-551a
#1
Zhenhua Du, Xianqun Sha
Curcumin is a natural agent that has ability to dampen tumor cells' growth. However, the natural form of curcumin is prone to degrade and unstable in vitro. Here, we demonstrated that demethoxycurcumin (a curcumin-related demethoxy compound) could inhibit cell proliferation and induce apoptosis of ovarian cancer cells. Moreover, IRS2/PI3K/Akt axis was inactivated in cells treated with demethoxycurcumin. Quantitative real-time reverse transcription polymerase chain reaction demonstrated that miR-551a was down-regulated in ovarian cancer tissues and ovarian cancer cell lines...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28338175/study-on-the-mechanism-of-ampk-signaling-pathway-and-its-effect-on-apoptosis-of-human-hepatocellular-carcinoma-smmc-7721-cells-by-curcumin
#2
Y-J Zhang, H Xiang, J-S Liu, D Li, Z-Y Fang, H Zhang
OBJECTIVE: Liver cancer is a common malignant tumor in the digestive system. Curcumin is a kind of phenolic pigment, which is extracted from herbage and has a plenty of physiological roles in anti-inflammation, anti-oxidation and anti-tumor. In our study, human hepatoma SMMC-7721 cell lines were selected and treated with curcumin to detect its effects on the apoptosis and AMPK signaling pathway. MATERIALS AND METHODS: Human liver cancer cell strain SMMC-7721 was cultured and treated with different curcumin concentrations for different times followed by measuring the changes of cell proliferation activity and cycle by MTT and flow cytometry, respectively...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28337376/curcumin-derivative-wz35-efficiently-suppresses-colon-cancer-progression-through-inducing-ros-production-and-er-stress-dependent-apoptosis
#3
Junru Zhang, Zhiguo Feng, Chunhua Wang, Huiping Zhou, Weidong Liu, Karvannan Kanchana, Xuanxuan Dai, Peng Zou, Junlian Gu, Lu Cai, Guang Liang
Colon cancer is characterized by its fast progression and poor prognosis, and novel agents of treating colon cancer are urgently needed. WZ35, a synthetic curcumin derivative, has been reported to exhibit promising antitumor activity. Here, we investigated the in vitro and in vivo activities of WZ35 and explored the underlying mechanisms in colon cancer cell lines. WZ35 treatment significantly decreased the cell viability associated with G2/M cell cycle arrest and apoptosis induction in colon cancer cell lines...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28331366/the-effects-of-turmeric-curcumin-on-tumor-suppressor-protein-p53-and-estrogen-receptor-er%C3%AE-in-breast-cancer-cells
#4
Kelly Hallman, Katie Aleck, Brigitte Dwyer, Victoria Lloyd, Meghan Quigley, Nada Sitto, Amy E Siebert, Sumi Dinda
Curcumin (CUR) is a compound that has antibacterial, antiviral, anti-inflammatory, and anticancer properties. In this study, we have analyzed the effects of CUR on the expression of ERα and p53 in the presence of hormones and anti-hormones in breast cancer cells. Cells were cultured in a medium containing charcoal-stripped fetal bovine serum to deplete any endogenous steroids and treated with CUR at varying concentrations or in combination with hormones and anti-hormones. Protein analysis revealed a relative decrease in the levels of p53 and ERα upon treatment with 5-60 µM CUR...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28330763/ph-responsive-controlled-release-of-anti-cancer-hydrophobic-drugs-from-sodium-alginate-and-hydroxyapatite-bi-coated-iron-oxide-nanoparticles
#5
Danushika C Manatunga, Rohini M de Silva, K M Nalin de Silva, Nuwan de Silva, Shiva Bhandari, Yoke Khin Yap, N Pabakara Costha
Developing a drug carrier system which could perform targeted and controlled release over a period of time is utmost concern in the pharmaceutical industry. This is more relevant when designing drug carriers for poorly water soluble drug molecules such as curcumin and 6-gingerol. Development of a drug carrier system which could overcome these limitations and perform controlled and targeted drug delivery is beneficial. This study describes a promising approach for the design of novel pH sensitive sodium alginate, hydroxyapatite bilayer coated iron oxide nanoparticle composite (IONP/HAp-NaAlg) via the co-precipitation approach...
March 18, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28323035/naturally-occurring-anti-cancer-agents-targeting-ezh2
#6
Fahimeh Shahabipour, Michele Caraglia, Muhammed Majeed, Giuseppe Derosa, Pamela Maffioli, Amirhossein Sahebkar
Natural products are considered as promising tools for the prevention and treatment of cancer. The enhancer of zeste homolog 2 (EZH2) is a histone methyltransferase unit of polycomb repressor complexes such as PRC2 complex that has oncogenic roles through interference with growth and metastatic potential. Several agents targeting EZH2 has been discovered but they often induce side effects in clinical trials. Recently, EZH2 has emerged as a potential target of natural products with documented anti-cancer effects and this discloses a new scenario for the development of EZH2 inhibitory strategies with agents with low cytotoxic detrimental effects...
March 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28322158/effect-and-mechanism-of-curcumin-on-ezh2-mir-101-regulatory-feedback-loop-in-multiple-myeloma
#7
Chuanqing Wu, Tuo Ruan, Weizhen Liu, Xiaojie Zhu, Juan Pan, Wen Lu, Chen Yan, Kaixiong Tao, Weikang Zhang, Chun Zhang
BACKGROUND: Multiple myeloma is the second most prevalent hematologic malignancy and thought to be incurable. Therefore, it's urgent to find new drugs for treatment. Some experiments have shown that curcumin might have great potential in treating multiple myeloma, while the mechanism is still unknown. EZH2 and SUZ12 are the core proteins in PRC2 and their expression are increased in various human cancers, including the poor prognostic multiple myeloma. Meanwhile, the regulation of miRNAs and EZH2 has been demonstrated in other cancer researches, like lung cancer, pancreatic cancer, leukemia and so on...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28319780/new-bis-hydroxymethyl-alkanoate-curcuminoid-derivatives-exhibit-activity-against-triple-negative-breast-cancer-in%C3%A2-vitro-and-in%C3%A2-vivo
#8
Min-Tsang Hsieh, Ling-Chu Chang, Hsin-Yi Hung, Hui-Yi Lin, Mei-Hui Shih, Chang-Hai Tsai, Sheng-Chu Kuo, Kuo-Hsiung Lee
Novel bis(hydroxymethyl) alkanoate curcuminoid derivatives were designed, synthesized and screened for in vitro antiproliferative and in vivo antitumor activity. Selected new compound 9a and curcumin were further evaluated for inhibitory activity against ER(+)/PR(+) breast cancer (MCF-7, T47D), HER 2(+) breast cancer (SKBR3, BT474, and MDA-MB-457) and triple negative breast cancer (TNBC) (HS-578T, MDA-MB-157, and MDA-MB-468) cell lines. In addition, compound 9a was evaluated in the MDA-MB-231 xenograft nude mice model...
March 8, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28316232/in-vitro-reduction-of-arsenic-bioavailability-using-dietary-strategies
#9
M J Clemente, V Devesa, D Velez
The main route of human exposure to inorganic arsenic (As) is through consumption of food and water. Continued exposure to inorganic As [As(III) and As(V)] may cause a variety of diseases, including various types of cancer. Removal of As from these sources is complex, especially for food. One way to decrease As exposure could be by reducing intestinal absorption of it. The aim of this study is to seek dietary strategies (pure compounds, extracts, or supplements) that are capable of reducing the amount of As that is absorbed and reaches the systemic circulation...
March 20, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28300724/methylene-blue-curcumin-and-ion-pairing-nanoparticles-effects-on-photodynamic-therapy-of-mda-mb-231-breast-cancer-cell
#10
Reza Hosseinzadeh, Khatereh Khorsandi
PURPOSE: The aim of current study was to use methylene blue-curcumin ion pair nanoparticles and single dyes as photosensitizer for comparison of photodynamic therapy (PDT) efficacy on MDA-MB-231 cancer cells, also various light sources effect on activation of photosensitizer (PS) was considered. METHOD: Ion pair nanoparticles were synthesized using opposite charge ions precipitation and lyophilized. The PDT experiments were designed and the effect of PSs and light sources (Red LED (630nm; power density: 30mWcm(-2)) and blue LED (465nm; power density: 34mWcm(-2))) on the human breast cancer cell line were examined...
March 11, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28287321/curcumin-nanotechnologies-and-its-anticancer-activity
#11
Parasuraman Aiya Subramani, Kalpana Panati, Venkata Ramireddy Narala
Cancer is one of the leading causes of death worldwide. Curcumin is a well-established anticancer agent in vitro but its efficacy is yet to be proven in clinical trials. Poor bioavailability of curcumin is the principal reason behind the lack of efficiency of curcumin in clinical trials. Many studies prove that the bioavailability of curcumin can be improved by administering it through nanoparticle drug carriers. This review focuses on the efforts made in the field of nanotechnology to improve the bioavailability of curcumin...
April 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28286973/curcumin-inhibits-urothelial-tumor-development-by-suppressing-igf2-and-igf2-mediated-pi3k-akt-mtor-signaling-pathway
#12
Binqiang Tian, Yingmei Zhao, Tao Liang, Xuxiao Ye, Zuowei Li, Dongliang Yan, Qiang Fu, Yonghui Li
We have previously reported that curcumin inhibits urothelial tumor development in a rat bladder carcinogenesis model. In this study, we report that curcumin inhibits urothelial tumor development by suppressing IGF2 and IGF2-mediated PI3K/AKT/mTOR signaling pathway. Curcumin inhibits IGF2 expression at the transcriptional level and decreases the phosphorylation levels of IGF1R and IRS-1 in bladder cancer cells and N-methyl-N-nitrosourea (MNU)-induced urothelial tumor tissue. Ectopic expression of IGF2 and IGF1R, but not IGF1, in bladder cancer cells restored this process, suggesting that IGF2 is a target of curcumin...
March 11, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28286519/erbb-proteins-as-molecular-target-of-dietary-phytochemicals-in-malignant-diseases
#13
REVIEW
Alexandru Filippi, Oana-Alina Ciolac, Constanța Ganea, Maria-Magdalena Mocanu
ErbB proteins overexpression, in both normal and mutated forms, is associated with invasive forms of cancer prone to metastasis and with stronger antiapoptotic mechanisms and therefore more challenging to treat. Downstream effectors of ErbB receptors mediating these phenotypic traits include MAPK, STAT, and PI3K/AKT/mTOR pathways. Various phytochemical compounds were studied for their large number of biological effects including anticancer activity. Among these compounds, epigallocatechin-3-gallate (EGCG), the main catechin from green tea leaves, and curcumin, component of the curry powder, constituted the object of numerous studies...
2017: Journal of Oncology
https://www.readbyqxmd.com/read/28283780/metabolic-carbonyl-reduction-of-anthracyclines-role-in-cardiotoxicity-and-cancer-resistance-reducing-enzymes-as-putative-targets-for-novel-cardioprotective-and-chemosensitizing-agents
#14
REVIEW
Kamil Piska, Paulina Koczurkiewicz, Adam Bucki, Katarzyna Wójcik-Pszczoła, Marcin Kołaczkowski, Elżbieta Pękala
Anthracycline antibiotics (ANT), such as doxorubicin or daunorubicin, are a class of anticancer drugs that are widely used in oncology. Although highly effective in cancer therapy, their usefulness is greatly limited by their cardiotoxicity. Possible mechanisms of ANT cardiotoxicity include their conversion to secondary alcohol metabolites (i.e. doxorubicinol, daunorubicinol) catalyzed by carbonyl reductases (CBR) and aldo-keto reductases (AKR). These metabolites are suspected to be more cardiotoxic than their parent compounds...
March 10, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28281678/a-glycyrrhetinic-acid-modified-curcumin-supramolecular-hydrogel-for-liver-tumor-targeting-therapy
#15
Guoqin Chen, Jinliang Li, Yanbin Cai, Jie Zhan, Jie Gao, Mingcai Song, Yang Shi, Zhimou Yang
Curcumin (Cur), a phenolic anti-oxidant compound obtained from Curcuma longa plant, possesses a variety of therapeutic properties. However, it is suffered from its low water solubility and low bioavailability property, which seriously restricts its clinical application. In this study, we developed a glycyrrhetinic acid (GA) modified curcumin supramolecular pro-gelator (GA-Cur) and a control compound Nap-Cur by replacing GA with the naphthylacetic acid (Nap). Both compounds showed good water solubility and could form supramolecular gels by disulfide bond reduction triggered by glutathione (GSH) in vitro...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28281377/diterpenoids-with-thioredoxin-reductase-inhibitory-activities-from-jatropha-multifida
#16
Jian-Yong Zhu, Chun-Yang Zhang, Jing-Jing Dai, Khalid Rahman, Hong Zhang
Chemical investigation of the Jatropha multifida has led to the isolation of nine diterpenoids (1-9), including a new jatromulone A, four podocarpane diterpenoids (2-5), two lathyrane-type diterpenoids (6 and 7) and two dinorditerpenoids (8 and 9). Their structures were elucidated by spectroscopic analysis, and the absolute configurations of 1 were determined by CD analysis. All of the diterpenoids were screened for inhibitory activity against thioredoxin reductase (TrxR), which is a potential target for cancer chemotherapy with redox balance and antioxidant functions...
March 10, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28278578/delivery-of-curcumin-by-a-ph-responsive-chitosan-mesoporous-silica-nanoparticles-for-cancer-treatment
#17
Navid Ahmadi Nasab, Hassan Hassani Kumleh, Mojtaba Beygzadeh, Shahram Teimourian, Mahmood Kazemzad
Mesoporous silica nanocarriers as accommodate drug molecule capsules were synthesized and capped by chitosan natural polymer. This nanocarrier acts as a pH-responsive shield to increase the solubility and improvement of anticancer properties of curcumin against U87MG glioblastoma cancer cell line. The encapsulation efficiency and drug-loading content were measured 88.1 ± 4.76% and 8.81 ± 0.47%, respectively. The curcumin release from the CS-MCM-41 was slow and sustained at low pH (42.72 ± 2.29%) compared to the environment pH (19...
February 23, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28273819/cancer-chemoprevention-by-phytochemicals-nature-s-healing-touch
#18
REVIEW
Haseeb Zubair, Shafquat Azim, Aamir Ahmad, Mohammad Aslam Khan, Girijesh Kumar Patel, Seema Singh, Ajay Pratap Singh
Phytochemicals are an important part of traditional medicine and have been investigated in detail for possible inclusion in modern medicine as well. These compounds often serve as the backbone for the synthesis of novel therapeutic agents. For many years, phytochemicals have demonstrated encouraging activity against various human cancer models in pre-clinical assays. Here, we discuss select phytochemicals-curcumin, epigallocatechin-3-gallate (EGCG), resveratrol, plumbagin and honokiol-in the context of their reported effects on the processes of inflammation and oxidative stress, which play a key role in tumorigenesis...
March 3, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28272691/the-effect-of-curcumin-on-bladder-tumor-in-rat-model
#19
Z-J Pan, N Deng, Z-H Zou, G-X Chen
OBJECTIVE: Bladder cancer is the most commonly malignant tumor in the urogenital tract, only next to prostate cancer with a higher incidence in China. Curcumin is the major component of curcuma longa and has multiple biological effects including anti-tumor. This study aimed to investigate the effect of curcumin on bladder cancer. MATERIALS AND METHODS: SPF-grade Wistar rats were used for establishing bladder cancer model through injection of N-methyl-N-nitrosourea (MNU)...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28270067/the-effects-of-nanoencapsulated-curcumin-fe3o4-on-proliferation-and-htert-gene-expression-in-lung-cancer-cells
#20
Hadi Sadeghzadeh, Younes Pilehvar-Soltanahmadi, Abolfazl Akbarzadeh, Hassan Dariushnejad, Forough Sanjarian, Nosratollah Zarghami
OBJECTIVE: The aim of the study is to fabricate curcumin-loaded PLGA-PEG-Fe3O4 nanoparticles and comprise the effects of pure curcumin and curcumin-nanomagnetic encapsulated in PLGA-PEG on cell cytotoxicity and hTERT gene expression in A549 lung cancer cell line. BACKGROUND: Lung cancer is the most common cancer in men and one of the four main cancers that occurs in women. Telomerase is active in more than 85% of various cancerous cells such as lung cancer while its activity is very low in normal cells...
February 13, 2017: Anti-cancer Agents in Medicinal Chemistry
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