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Cancer AND phytochemicals

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https://www.readbyqxmd.com/read/28915128/polyphenols-dietary-assessment-and-role-in-the-prevention-of-cancers
#1
Joseph A Rothwell, Viktoria Knaze, Raul Zamora-Ros
PURPOSE OF REVIEW: Polyphenols are a large and diverse family of phytochemicals widely consumed by humans. Here we summarize the latest epidemiological evidence for associations between cancer risk and polyphenol intake, taking into account difficulties in the accurate estimation of exposure. RECENT FINDINGS: Flavonoids are the most studied subgroup of polyphenols with regard to cancer risk. In recent epidemiological studies, total flavonoid intake has rarely been associated with a reduction in cancer risk...
September 14, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28912888/sulforaphane-induced-cell-cycle-arrest-and-senescence-are-accompanied-by-dna-hypomethylation-and-changes-in-microrna-profile-in-breast-cancer-cells
#2
Anna Lewinska, Jagoda Adamczyk-Grochala, Anna Deregowska, Maciej Wnuk
Cancer cells are characterized by genetic and epigenetic alterations and phytochemicals, epigenetic modulators, are considered as promising candidates for epigenetic therapy of cancer. In the present study, we have investigated cancer cell fates upon stimulation of breast cancer cells (MCF-7, MDA-MB-231, SK-BR-3) with low doses of sulforaphane (SFN), an isothiocyanate. SFN (5-10 µM) promoted cell cycle arrest, elevation in the levels of p21 and p27 and cellular senescence, whereas at the concentration of 20 µM, apoptosis was induced...
2017: Theranostics
https://www.readbyqxmd.com/read/28912082/mapk-signalling-pathway-in-cancers-olive-products-as-cancer-preventive-and-therapeutic-agents
#3
REVIEW
Ilaria Peluso, Nagendra Sastry Yarla, Roberto Ambra, Gianni Pastore, George Perry
The mitogen-activated protein kinases (MAPKs) are fundamental in inflammation and cancer control, through the crosstalk between the redox regulated nuclear factor E2-related factor 2 (Nrf2) and nuclear factor-kB (NFκB) gene expression. MAPKs regulate various cellular activities involved in cancer progression, including proliferation, apoptosis and immune escape and blockade of upstream kinases is a current therapeutic strategy. However, these therapies are associated with some adverse effects and with the paradoxical activation of the MAPKs pathway...
September 11, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28911532/bioactive-phytochemicals-in-barley
#4
REVIEW
Emmanuel Idehen, Yao Tang, Shengmin Sang
Epidemiological studies have consistently shown that regular consumption of whole grain barley reduces the risk of developing chronic diseases. The presence of barley fiber, especially β-glucan in whole grain barley, has been largely credited for these health benefits. However, it is now widely believed that the actions of the fiber component alone do not explain the observed health benefits associated with the consumption of whole grain barley. Whole grain barley also contains phytochemicals including phenolic acids, flavonoids, lignans, tocols, phytosterols, and folate...
January 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28901514/multimodal-actions-of-the-phytochemical-sulforaphane-suppress-both-ar-and-ar-v7-in-22rv1-cells-advocating-a-potent-pharmaceutical-combination-against-castration-resistant-prostate-cancer
#5
Namrata Khurana, Hogyoung Kim, Partha K Chandra, Sudha Talwar, Pankaj Sharma, Asim B Abdel-Mageed, Suresh C Sikka, Debasis Mondal
Prostate cancer (PCa) cells expressing full-length androgen receptor (AR-FL) are susceptible to androgen deprivation therapy (ADT). However, outgrowth of castration-resistant prostate cancer (CRPC) can occur due to the expression of constitutively active (ligand-independent) AR splice variants, particularly AR-V7. We previously demonstrated that sulforaphane (SFN), an isothiocyanate phytochemical, can decrease AR-FL levels in the PCa cell lines, LNCaP and C4-2B. Here, we examined the efficacy of SFN in targeting both AR-FL and AR-V7 in the CRPC cell line, CWR22Rv1 (22Rv1)...
August 30, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28901472/inositol-hexaphosphate-hydrolysate-competitively-binds-to-akt-to-inhibit-the-proliferation-of-colon-carcinoma
#6
Chen Chen, Fuguo Yang, Cuiping Liu, Lianhua Cui, Min Fu, Yang Song
Phytate, myto-inositol 1,2,3,4,5,6 hexaphosphate (IP6), is recognized as an anti-nutrition phytochemical for decades. Recently, numerous studies have indicated that IP6 and its hydrolysates could suppress colon oncogenesis. However, very little is known concerning the mechanism of IP6 hydrolysates in regulating colon oncogenesis. The aim of the present study was to identify the underlying relationship between IP6 hydrolysates and colon cancer. Three types of human colorectal cancer cells were utilized in the present study...
September 7, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28901261/spices-with-breast-cancer-chemopreventive-and-therapeutic-potentials-a-functional-foods-based-review
#7
Aliyu Muhammad, Mohammed Auwal Ibrahim, Ochuko Lucky Erukainure, Ibrahim Malami, Auwal Adamu
Cancer is a disease that affects a significant number of both rural and urban dwellers. Among the various types of cancer, breast cancer is one of the most common diagnosed cancers among females. Its menace can be curbed with locally consumed spices due to their multiple bioactive phytochemicals. This review focuses on the breast cancer chemopreventive and therapeutic potentials of locally consumed spices. The most commonly consumed spices with breast cancer chemopreventive and chemotherapeutic phytochemical include pepper, onions, ginger, garlic, curry and thyme containing many biologically active metabolites ranging from vitamins, fatty acids esters, polyphenols/phenolics, sulfur-containing compounds and anthraquinones with proven antioxidant, anti-inflammatory, immuno-modulatory, antitumor and anticancer properties against breast cancer/carcinogenesis...
September 12, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28899497/molecular-targets-and-anticancer-potential-of-sanguinarine-a-benzophenanthridine-alkaloid
#8
REVIEW
Sehamuddin Galadari, Anees Rahman, Siraj Pallichankandy, Faisal Thayyullathil
BACKGROUND: Cancer is an enormous global health burden, and should be effectively addressed with better therapeutic strategies. Currently, over 60% of the clinically approved anticancer agents are either directly isolated from natural sources or are modified from natural lead molecules. Sanguinarine (SNG), a quaternary benzophenanthridine alkaloid has gained increasing attention in recent years as a potential anticancer agent. PURPOSE: There is a large untapped source of phytochemical-based anticancer agents remaining to be explored...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28893230/assessment-of-free-radical-scavenging-and-anti-proliferative-activities-of-tinospora-cordifolia-miers-willd
#9
Picheswara Rao Polu, Udupa Nayanbhirama, Saleemulla Khan, Rajlexmi Maheswari
BACKGROUND: Tinospora cordifolia (Guduchi or Amrita) is an important drug of Ayurvedic System of Medicine and found mention in various classical texts for the treatment of diseases such as jaundice, fever, diabetes, cancer and skin disease etc. In view of its traditional claims, antioxidant and anti-proliferative activities were evaluated in the present study. METHODS: Ethanol extract (TCE) and subsequent petroleum ether (TCP), dichloromethane (TCD), n-Butanol (TCB) and aqueous (TCA) fractions of were prepared from stems of T cordifolia...
September 11, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28884080/antibacterial-antioxidant-and-cell-proliferative-properties-of-coccinia-grandis-fruits
#10
Prashant Sakharkar, Balwantsinh Chauhan
OBJECTIVE: Little knowledge is available on the antimicrobial and antioxidant properties of Coccina grandis fruits and no study has reported on its cell proliferative property. The aim of this study was to examine the antimicrobial, antioxidant and cell proliferative property of fruits of C. grandis. MATERIALS AND METHODS: Fruits of C. grandis were extracted using water; ethanol and acetone by cold and hot Soxhlet extraction. The antibacterial activities of the extracts were tested against Staphylococcusaureus,Enterococcusfaecalis,Escherichiacoli and Pseudomonasaeruginosa using the modified Kirby-Bauer diffusion method and compared against erythromycin...
July 2017: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/28881699/thymoquinone-as-an-anticancer-molecule-from-basic-research-to-clinical-investigation
#11
REVIEW
Md Asaduzzaman Khan, Mousumi Tania, Shangyi Fu, Junjiang Fu
Thymoquinone is an anticancer phytochemical commonly found in black cumin. In this review, we discuss the potential of thymoquinone as anticancer molecule, its mechanism of action and future usage in clinical applications. Thymoquinone exhibits anticancer activity via numerous mechanisms of action, specifically by showing selective antioxidant and oxidant activity, interfering with DNA structure, affecting carcinogenic signaling molecules/pathways and immunomodulation. In vitro activity of thymoquinone has been further implicated in animal models of cancer; however, no clinical application has been proven yet...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28872603/ginger-phytochemicals-inhibit-cell-growth-and-modulate-drug-resistance-factors-in-docetaxel-resistant-prostate-cancer-cell
#12
Chi-Ming Liu, Chiu-Li Kao, Yu-Ting Tseng, Yi-Ching Lo, Chung-Yi Chen
Ginger has many bioactive compounds with pharmacological activities. However, few studies are known about these bioactive compounds activity in chemoresistant cells. The aim of the present study was to investigate the anticancer properties of ginger phytochemicals in docetaxel-resistant human prostate cancer cells in vitro. In this study, we isolated 6-gingerol, 10-gingerol, 4-shogaol, 6-shogaol, 10-shogaol, and 6-dehydrogingerdione from ginger. Further, the antiproliferation activity of these compounds was examined in docetaxel-resistant (PC3R) and sensitive (PC3) human prostate cancer cell lines...
September 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28870814/curcumin-inhibits-bladder-cancer-stem-cells-by-suppressing-sonic-hedgehog-pathway
#13
Dengdian Wang, Xiaochuan Kong, Yuan Li, Weiwei Qian, Jiaxing Ma, Daming Wang, Dexin Yu, Caiyun Zhong
Cancer stem cells (CSCs) is responsible for the recurrence of human cancers. Thus, targeting CSCs is considered to be a valid way for human cancer treatment. Curcumin is a major component of phytochemicals that exerts potent anticancer activities. However, the effect of curcumin on bladder cancer stem cells (BCSCs) remains to be elucidated. In this study, we investigated the mechanism of curcumin suppressing bladder cancer stem cells. In this study, UM-UC-3 and EJ cells were cultured in serum-free medium (SFM) to form cell spheres that was characterized as BCSCs...
September 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28865203/pharmacological-and-phytochemical-screening-of-palestinian-traditional-medicinal-plants-erodium-laciniatum-and-lactuca-orientalis
#14
Nidal Jaradat, Motasem AlMasri, Abdel Naser Zaid, Dua'a Ghazi Othman
BACKGROUND: Various epidemiological studies showed that herbal remedies containing polyphenols may protect against various diseases such as cancers, vascular diseases and inflammatory pathologies. Currently, such groups of bioactive compounds have become a subject of many antimicrobials and antioxidant investigations. Accordingly, the current study aimed to conduct biological and phytochemical screening for two Palestinian traditional medicinal plants, Erodium laciniatum and Lactuca orientalis...
September 1, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28864041/abietane-diterpenoids-from-sideritis-montana-l-and-their-antiproliferative-activity
#15
Barbara Tóth, Norbert Kúsz, Peter Forgo, Noémi Bózsity, István Zupkó, Gyula Pinke, Judit Hohmann, Andrea Vasas
The present study aimed at the phytochemical and pharmacological investigation of Sideritis montana L. (Lamiaceae). Two new abietane diterpenes [sideritins A (1) and B (2)] were isolated from the methanol extract of the plant. Six known compounds [pomiferin E (3), 9α,13α-epi-dioxyabiet-8(14)-en-18-ol (4), paulownin (5), 6-methoxysakuranetin (6), 3-oxo-α-ionol (7) and 4-allyl-2,6-dimethoxyphenol glucoside (8)] were also obtained from the plant. The structures were determined by means of HREIMS and NMR experiments...
August 31, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28862664/brassica-derived-plant-bioactives-as-modulators-of-chemopreventive-and-inflammatory-signaling-pathways
#16
REVIEW
Christine Sturm, Anika E Wagner
A high consumption of vegetables belonging to the Brassicaceae family has been related to a lower incidence of chronic diseases including different kinds of cancer. These beneficial effects of, e.g., broccoli, cabbage or rocket (arugula) intake have been mainly dedicated to the sulfur-containing glucosinolates (GLSs)-secondary plant compounds nearly exclusively present in Brassicaceae-and in particular to their bioactive breakdown products including isothiocyanates (ITCs). Overall, the current literature indicate that selected Brassica-derived ITCs exhibit health-promoting effects in vitro, as well as in laboratory mice in vivo...
September 1, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28859099/acacetin-enhances-the-therapeutic-efficacy-of-doxorubicin-in-non-small-cell-lung-carcinoma-cells
#17
Reenu Punia, Komal Raina, Rajesh Agarwal, Rana P Singh
BACKGROUND: Anthracyclines are efficient and potent agents to treat broad range of cancers but cytotoxicity induced by them limits their use in therapeutics. Use of plant-derived agents help to prevent or delay the process of cancer progression and their combination increases the anti-cancer potential of mainstream compound. However, multidrug resistance is major cause of treatment failure in cancer patients. PURPOSE: In this study, combination treatments of fisetin or acacetin with doxorubicin were explored for their potential synergistic effect on non-small-cell lung carcinoma (NSCLC) cells...
2017: PloS One
https://www.readbyqxmd.com/read/28855870/leaf-and-root-extracts-from-campomanesia-adamantium-myrtaceae-promote-apoptotic-death-of-leukemic-cells-via-activation-of-intracellular-calcium-and-caspase-3
#18
Jaqueline F Campos, Priscilla P de Toledo Espindola, Heron F V Torquato, Wagner D Vital, Giselle Z Justo, Denise B Silva, Carlos A Carollo, Kely de Picoli Souza, Edgar J Paredes-Gamero, Edson L Dos Santos
Phytochemical studies are seeking new alternatives to prevent or treat cancer, including different types of leukemias. Campomanesia adamantium, commonly known as guavira or guabiroba, exhibits pharmacological properties including antioxidant, antimicrobial, and antiproliferative activities. Considering the anticancer potential of this plant species, the aim of this study was to evaluate the antileukemic activity and the chemical composition of aqueous extracts from the leaves (AECL) and roots (AECR) of C. adamantium and their possible mechanisms of action...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28853883/characterization-of-the-degradation-profile-of-umbelliprenin-a-bioactive-prenylated-coumarin-of-a-ferulago-species
#19
Salvatore Genovese, Vito Alessandro Taddeo, Francesco Epifano, Serena Fiorito, Cécile Bize, Arnaud Rives, Philippe de Medina
Umbelliprenin is a secondary plant metabolite that displays promising chemopreventive, anti-inflammatory, and antigenotoxic properties. It possesses potential for applications to human welfare notably to prevent the emergence of cancer. For this purpose, stability studies are needed to define proper storage conditions and adapted formulations for this drug candidate. The identification of degradative products is a major concern for the preclinical development of umbelliprenin, providing also interesting information related to potential original phytochemicals formed in plants exposed to stressors...
August 30, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28852971/identification-of-phytochemicals-targeting-c-met-kinase-domain-using-consensus-docking-and-molecular-dynamics-simulation-studies
#20
Shima Aliebrahimi, Shideh Montasser Kouhsari, Seyed Nasser Ostad, Seyed Shahriar Arab, Leila Karami
c-Met receptor tyrosine kinase is a proto-oncogene whose aberrant activation is attributed to a lower rate of survival in most cancers. Natural product-derived inhibitors known as "fourth generation inhibitors" constitute more than 60% of anticancer drugs. Furthermore, consensus docking approach has recently been introduced to augment docking accuracy and reduce false positives during a virtual screening. In order to obtain novel small-molecule Met inhibitors, consensus docking approach was performed using Autodock Vina and Autodock 4...
August 29, 2017: Cell Biochemistry and Biophysics
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