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Nutrition and Cancer

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https://www.readbyqxmd.com/read/27911093/dna-microarray-profiling-highlights-nrf2-mediated-chemoprevention-targeted-by-wasabi-derived-isothiocyanates-in-hepg2-cells
#1
Phoebe Zapanta Trio, Atsuyoshi Kawahara, Shunsuke Tanigawa, Kozue Sakao, De-Xing Hou
6-MSITC and 6-MTITC are sulforaphane (SFN) analogs found in Japanese Wasabi. As we reported previously, Wasabi isothiocyanates (ITCs) are activators of Nrf2-antioxidant response element pathway, and also inhibitors of pro-inflammatory cyclooxygenase-2. This study is the first to assess the global changes in transcript levels by Wasabi ITCs, comparing with SFN, in HepG2 cells. We performed comparative gene expression profiling by treating HepG2 cells with ITCs, followed by DNA microarray analyses using HG-U133 plus 2...
December 2, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27911090/antitumor-activity-of-portulaca-oleracea-l-polysaccharide-on-hela-cells-through-inducing-tlr4-nf-%C3%AE%C2%BAb-signaling
#2
Rui Zhao, Tao Zhang, Baoling Ma, Xing Li
Abstarct We have previously shown that Portulaca oleracea L. polysaccharide (POL-P3b) possesses the ability to inhibit cervical cancer cell growth in vitro and in vivo. In this study, we explored how toll-like receptor 4 (TLR4) signaling correlated with the antitumor mechanism of POL-P3b. Western blotting was utilized to detect the expression of TLR4 and the downstream signaling pathway. The level of inflammatory mediator was quantified using enzyme-linked immunosorbent assay (ELISA) kits. The effects of POL-P3b on the proliferation and apoptosis in HeLa cells were determined by WST-8 assay and Hoechst 33342/propidium iodide (PI) assay...
December 2, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27901346/capsaicin-modulates-the-immune-cross-talk-between-human-mononuclears-and-cells-from-two-colon-carcinoma-lines
#3
Hanna Bessler, Meir Djaldetti
BACKGROUND: Capsaicin, the pungent alkaloid of the chili peppers, has gained a worldwide reputation. In addition to its culinary assets, capsaicin possesses analgesic, anti-inflammatory, antimicrobial, and even carcinopreventive properties. Considering the linkage between chronic inflammation and tumorigenesis, the aim of the study was to evaluate the role of capsaicin in the immune interplay between human peripheral blood mononuclear cells (PBMCs) and HT-29 or RKO cells from human colon carcinoma lines...
November 30, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27898225/plasma-riboflavin-level-is-associated-with-risk-relapse-and-survival-of-esophageal-squamous-cell-carcinoma
#4
Shan-Shan Li, Yi-Wei Xu, Jian-Yi Wu, Hua-Zhen Tan, Zhi-Yong Wu, Yu-Jie Xue, Jian-Jun Zhang, En-Min Li, Li-Yan Xu
Riboflavin is an essential micronutrient for normal cellular activity, and deficiency may result in disease, such as cancer. We performed a case-control study to explore the association of riboflavin levels with risk and prognosis of esophageal squamous cell carcinoma (ESCC). Plasma riboflavin levels, as measured by enzyme-linked immunosorbent assay (ELISA), in ESCC patients were significantly lower than in those of healthy controls (7.04 ± 6.34 ng/ml vs. 9.32 ± 12.40 ng/ml; P < 0.05). Moreover, there was an inverse relationship between riboflavin level and risk of ESCC (odds ratio (OR) = 0...
November 29, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27897439/il-4-mrna-is-downregulated-in-the-liver-of-pancreatic-cancer-patients-suffering-from-cachexia
#5
Olga Prokopchuk, Jürgen M Steinacker, Ulrich Nitsche, Stephanie Otto, Jeannine Bachmann, Elaine C Schubert, Helmut Friess, Marc E Martignoni
BACKGROUND: Interleukin-4 (IL-4) together with interleukin-13 (IL-13) play an important role in inflammation and wound repair, and are known to be upregulated in human skeletal muscle after strenuous physical exercise. Additionally, these cytokines may act as autocrine growth factors in pancreatic cancer cells. We hypothesize that IL-4, IL-13, and their corresponding receptors are involved in mechanism of cancer cachexia. METHODS: Tissue samples from human skeletal muscle, white fat, liver, healthy pancreas, and pancreatic ductal adenocarcinoma were analyzed by quantitative real-time polymerase chain reaction for mRNA expression levels of IL-4, IL-13, IL-4 receptor α, and IL-13 receptor α1...
November 29, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27892708/antitumoral-effects-of-d-fraction-from-grifola-frondosa-maitake-mushroom-in-breast-cancer
#6
Eliana Noelia Alonso, María Julia Ferronato, Norberto Ariel Gandini, María Eugenia Fermento, Diego Javier Obiol, Alejandro López Romero, Julián Arévalo, María Emilia Villegas, María Marta Facchinetti, Alejandro Carlos Curino
D-Fraction is protein-bound β-1,6 and β-1,3 glucans (proteoglucan) extracted from the edible and medicinal mushroom Grifola frondosa (Maitake). The antitumoral effect of D-Fraction has long been exclusively attributed to their immunostimulatory capacity. However, in recent years increasing evidence showed that D-Fraction directly affects the viability of canine and human tumor cells, independent of the immune system. Previously, we have reported that D-Fraction modulates the expression of genes associated with cell proliferation, cell death, migration, invasion, and metastasis in MCF7 human breast cancer cells...
November 28, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27892697/allium-roseum-l-extract-exerts-potent-suppressive-activities-on-chronic-myeloid-leukemia-k562-cell-viability-through-the-inhibition-of-bcr-abl-pi3k-akt-and-erk1-2-pathways-and-the-abrogation-of-vegf-secretion
#7
Soumaya Souid, Hanen Najjaa, Ichrak Riahi-Chebbi, Meriam Haoues, Mohamed Neffati, Ingrid Arnault, Jacques Auger, Habib Karoui, Makram Essafi, Khadija Essafi-Benkhadir
Use of plant extracts, alone or combined to the current chemotherapy as chemosensitizers, has emerged as a promising strategy to overcome tumor drug resistance. Here, we investigated the anticancer activity of Allium roseum L. extracts, a wild edible species in North Africa, on human Chronic Myeloid Leukemia (CML) K562 cells. The dehydrated aqueous extract (DAE) disturbed the cell cycle progression and induced the apoptosis of K562 cells. Chemical analysis of DAE showed a diversity of organosulfur compounds S-alk(en)yl-cysteine sulfoxides (RCSO) and high amount of allicin, suggesting that such molecule may be behind its antitumor effect...
November 28, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27880058/fish-oil-derived-dha-mediated-enhancement-of-apoptosis-in-acute-lymphoblastic-leukemia-cells-is-associated-with-accumulation-of-p53-downregulation-of-survivin-and-caspase-3-activation
#8
Mohammad Reza Sam, Mohammad Esmaeillou, Mohammad Ali Shokrgozar
In acute lymphoblastic leukemia (ALL), resistance to chemotherapy is associated with inactivation of p53 and upregulation of survivin. Thus, targeting the p53 and survivin expression may provide an attractive strategy for ALL treatment. It has been shown that fish-oil-derived docosahexaenoic acid (DHA) activates several antitumorigenic mechanisms in tumor cells, but little is known regarding the role of DHA on modulating p53 and survivin expression in ALL cells. In this study, we investigated the alterations of the p53 and survivin expression and induction of apoptosis in DHA-treated Molt-4 cells that serve as a model for ALL cells...
November 23, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27880046/docosahexaenoic-acid-mediated-inhibition-of-heat-shock-protein-90-p23-chaperone-complex-and-downstream-client-proteins-in-lung-and-breast-cancer
#9
Michael Mouradian, Irvin V Ma, Erika D Vicente, Keith D Kikawa, Ronald S Pardini
The molecular chaperone, heat shock protein 90 (Hsp90), is a critical regulator for the proper folding and stabilization of several client proteins, and is a major contributor to carcinogenesis. Specific Hsp90 inhibitors have been designed to target the ATP-binding site in order to prevent Hsp90 chaperone maturation. The current study investigated the effects of docosahexaenoic acid (DHA; C22:6 n-3) on Hsp90 function and downstream client protein expression. In vitro analyses of BT-474 human breast carcinoma and A549 human lung adenocarcinoma cell lines revealed dose-dependent decreases in intracellular ATP levels by DHA treatment, resulting in a significant reduction of Hsp90 and p23 association in both cell lines...
November 23, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27880045/koelreuteria-formosana-extract-induces-growth-inhibition-and-cell-death-in-human-colon-carcinoma-cells-via-g2-m-arrest-and-lc3-ii-activation-dependent-autophagy
#10
Chi-Ting Horng, Yueh-Jung Wu, Pei-Ni Chen, Shu-Chen Chu, Chun-Miao Tsai, Yih-Shou Hsieh
Autophagy is a self-destructive process that degrades cytoplasmic constituents. In our previous study, Koelreuteria formosana ethanolic extract (KFEE), which is obtained from natural plants endemic to Taiwan, has inhibited cell metastasis in renal carcinoma cells. However, the anticancer effects of KFEE on colon cancer remain unclear. In this study, KFEE exerted a strong cytotoxic effect on DLD-1 and COLO 205 human colorectal cancer cell lines. KFEE effectively inhibited cancer cell proliferation, induced G2/M-phase arrest associated with downregulaton of cyclin E, cyclin B and cdc25C and upregulation of p21, and induced cell death by activating autophagy but did not cause apoptotic cell death...
November 23, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27880042/morus-rubra-extract-induces-cell-cycle-arrest-and-apoptosis-in-human-colon-cancer-cells-through-endoplasmic-reticulum-stress-and-telomerase
#11
Selim Demir, Ibrahim Turan, Yuksel Aliyazicioglu, Kagan Kilinc, Serap Ozer Yaman, Elif Ayazoglu Demir, Ayse Arslan, Ahmet Mentese, Orhan Deger
Many studies have reported cytotoxic effects of different Morus species, but there have been only limited studies on the cytotoxic effect of Morus rubra. The aims of this study were to evaluate the cytotoxic effect of dimethyl sulfoxide extract of M. rubra and to investigate, for the first time, its probable cytotoxic activity in human colon cancer (WiDr) cells, together with the mechanism involved. The cytotoxic activity of extract was determined using MTT assay. The mechanism involved in the cytotoxic effect of extract was then evaluated in terms of apoptosis, and the cell cycle using flow cytometry, mitochondrial membrane potential (MMP) was investigated using the fluorometric method, and expression levels of telomerase and C/EBP homologous protein (CHOP) were investigated using reverse-transcription PCR (RT-PCR)...
November 23, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27779444/selective-anticancer-activity-of-acacetin-against-chronic-lymphocytic-leukemia-using-both-in-vivo-and-in-vitro-methods-key-role-of-oxidative-stress-and-cancerous-mitochondria
#12
Ahmad Salimi, Mehryar Habibi Roudkenar, Leila Sadeghi, Alireza Mohseni, Enayatollah Seydi, Nahal Pirahmadi, Jalal Pourahmad
The present study investigates the in vitro and in vivo effect of acacetin (4'-methoxy-5,7-dihydroxyflavone) on chronic lymphocytic leukemia (CLL) B-lymphocytes and mitochondria. CLL B-lymphocytes and healthy B-lymphocytes were obtained from CLL patients and healthy donors, respectively. Mitochondria were isolated from B-lymphocytes of both groups. Xenografts in severe combined immune deficient mice were used to examine the toxicity and anti CLL activity of acacetin. We evaluated and compared the mechanism of action of acacetin on CLL and healthy B-lymphocytes and their mitochondria...
October 25, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27715329/preoperative-body-mass-index-may-determine-the-prognosis-of-advanced-gastric-cancer
#13
Dong Hwan Jun, Beom Jin Kim, Ji Hoon Park, Jae G Kim, Kyong-Choun Chi, Joong-Min Park, Mi Kyung Kim, Hyun Kang
Radical gastrectomy followed by adjuvant chemotherapy for advanced gastric cancer causes serious nutritional impairment. Our study evaluated the clinical impact of body mass index (BMI) on the long-term outcomes of advanced gastric cancer (stage II and III). We analyzed 211 cases of stage II and III gastric cancer between January 2005 and December 2010 at Chung-Ang University Hospital, Seoul, Korea. Patients were divided into four groups according to BMI: underweight, normal, overweight, and obese. In addition, we divided patients into two groups: BMI-High (BMI ≥ 23 kg/m(2)) vs...
October 7, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27689688/a-randomized-controlled-trial-to-increase-navy-bean-or-rice-bran-consumption-in-colorectal-cancer-survivors
#14
Erica C Borresen, Dustin G Brown, Greg Harbison, Lynn Taylor, Amanda Fairbanks, Joanne O'Malia, Marlon Bazan, Sangeeta Rao, Susan M Bailey, Melissa Wdowik, Tiffany L Weir, Regina J Brown, Elizabeth P Ryan
Consumption of navy beans (NB) and rice bran (RB) have been shown to inhibit colon carcinogenesis. Given the overall poor diet quality in colorectal cancer (CRC) survivors and low reported intake of whole grains and legumes, practical strategies to increase consumption merit attention. This study determined feasibility of increasing NB or RB intake in CRC survivors to increase dietary fiber and examined serum inflammatory biomarkers and telomere lengths. Twenty-nine subjects completed a randomized controlled trial with foods that included cooked NB powder (35 g/day), heat-stabilized RB (30 g/day), or no additional ingredient...
September 30, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27682242/dietary-patterns-for-women-with-triple-negative-breast-cancer-and-dense-breasts
#15
Yukyung Go, Minsung Chung, Yongsoon Park
Triple-negative breast cancer (TNBC) is a common subtype of breast cancer among women with dense breasts and is associated with a poor prognosis. Diet is a modifiable risk factor for breast cancer, but the association between the risk of TNBC and diet has not been studied. The present study investigated the hypothesis that a healthy dietary pattern was negatively associated with risk of TNBC in women with dense breasts (density types 3 and 4). After total mastectomy or breast conserving surgery, patients with TNBC (n = 38) and non-TNBC (n = 178) were recruited...
September 28, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27682136/effect-of-conjugated-linoleic-acid-enriched-butter-after-24-hours-of-intestinal-mucositis-induction
#16
Patrícia Aparecida Vieira de Barros, Simone de Vasconcelos Generoso, Maria Emília Rabelo Andrade, Marco Antonio Sundfeld da Gama, Fernando Cesar Ferraz Lopes, Éricka Lorenna de Sales E Souza, Flaviano Dos Santos Martins, Sued Eustáquio Mendes Miranda, Simone Odília Antunes Fernandes, Valbert Nascimento Cardoso
Mucositis is the most common side effect due to chemotherapy or radiotherapy. It refers to the inflammation of intestinal mucous membranes, and it is associated with complications such as diarrhea, weight loss, and increased intestinal permeability (IP). This study was designed to evaluate the effect of diet containing conjugated linoleic acid (CLA)-enriched butter on intestinal damage and inflammatory response after 24 h of 5-fluorouracil (5-FU)-induced mucositis. Mice were divided into four groups: CTL; CLA; 5-FU, and CLA 5-FU, and they were fed for 31 days...
September 28, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27673721/age-affects-the-mitigating-efficacy-of-riboflavin-against-cisplatin-induced-toxicity-in-vivo
#17
Iftekhar Hassan, Imrana Naseem, Shazia Aman, Ibrahim M Alhazza
Cis-diamminedichloroplatinum (CP), a prominent anticancer drug, exerts toxic insults that are functional to various factors that compromise its antineoplastic activity. Riboflavin (RF) is an essential vitamin and photosensitizer that ameliorates CP-induced toxic insults in vivo in a dose-dependent manner. The aim of the present study is to investigate how age can influence the ameliorative effect of RF against CP-induced toxicity. Ninety male mice were divided into three age groups: young, adult, and old for the present investigation under an established treatment strategy with CP, RF, and their combinations under photoillumination for 1 mo...
September 27, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27673552/sweet-potato-peels-and-cancer-prevention
#18
Abimbola Peter Oluyori, Arun Kumar Shaw, Gabriel Ademola Olatunji, Preeti Rastogi, Sanjeev Meena, Dipak Datta, Ashish Arora, Sammajay Reddy, Saidha Puli
A bioassay-guided fractionation of an alcoholic extract from the peels of Ipomoea batatas Lam has been carried out. Sulforhodamine B and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays were used to evaluate the anticancer and antioxidant potential, respectively, while silica gel column chromatography (CC) was used to isolate compounds that were characterized using 1D- and 2D-NMR (Nuclear Magnetic Resonance) and mass spectrometry. The alcoholic extract was fractionated into n-hexane, ethyl acetate, n-butanol, and water...
September 27, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27673410/inhibitory-kinetics-and-mechanism-of-flavonoids-extracted-from-cotinus-coggygria-scop-against-glioblastoma-cancer
#19
Gang Wang, Jun-Jie Wang, Li Du, Li Fei, Shing-Shun Tony To
This proposal seeks to study the potential therapeutic modality of chemoprevention and anticancer effects and mechanisms of the flavonoids from Cotinus coggygria Scop. on glioblastoma cancer. In the current study, the total flavonoids (TFs) isolated from Cotinus coggygria Scop. var. cinerea Engl. (Cotinus coggygria Scop.) and the major flavonoids of Cotinus coggygria Scop. (CCFs) were identified, and the inhibitory kinetics of TF and CCF on glioblastoma cell lines were calculated. We also investigated whether TF or CCF regulated the apoptotic mechanism in cellular models of glio-blastoma cells...
September 27, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27673354/pomegranate-intake-protects-against-genomic-instability-induced-by-medical-x-rays-in-vivo-in-mice
#20
Sameera Nallanthighal, Amit B Shirode, Julius A Judd, Ramune Reliene
Ionizing radiation (IR) is a well-documented human carcinogen. The increased use of IR in medical procedures has doubled the annual radiation dose and may increase cancer risk. Genomic instability is an intermediate lesion in IR-induced cancer. We examined whether pomegranate extract (PE) suppresses genomic instability induced by x-rays. Mice were treated orally with PE and exposed to an x-ray dose of 2 Gy. PE intake suppressed x-ray-induced DNA double-strand breaks (DSBs) in peripheral blood and chromosomal damage in bone marrow...
September 27, 2016: Nutrition and Cancer
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