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https://www.readbyqxmd.com/read/29228448/experimental-study-on-the-prevention-of-liver-cancer-angiogenesis-via-mir-126
#1
B-Q Jing, Y Ou, L Zhao, Q Xie, Y-X Zhang
OBJECTIVE: The aim of the present work was to study the prevention of liver cancer angiogenesis via miR-126. For this purpose, experimentations were conducted. MATERIALS AND METHODS: The precursor sequence of miR-126 was amplified in the DNA of human liver cancer cell lines. We, therefore, constructed the overexpression and interference vectors of miR-126 in vitro; which were respectively transferred to liver cancer cells in the logarithmic phase and inoculated under both sides of the back skin of Balb/c-nu nude mice aged 4-6 weeks with 10 mu l (1 x 105) cell suspension...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228308/rxr%C3%AE-enriched-cancer-stem-cell-like-properties-triggered-by-cddp-in-head-and-neck-squamous-cell-carcinoma-hnscc
#2
Pan Jiang, Chaoqi Xu, Ming Zhou, Huaqun Zhou, Weida Dong, Xiaoyue Wu, Aochang Chen, Qing Feng
Retinoid X receptor-α (RXRα) is a kind of nuclear receptor and is a target of cancer prevention and treatment in various types of cancers. Cancer stem cells (CSCs) are regarded as the main cause of carcinoma metastasis, tumor recurrence and chemotherapy resistance. So far, the mechanism how RXRα regulates CSCs remains unknown. In the present study, we found that RXRα was up-regulated in head and neck squamous cell carcinoma (HNSCC) tissues and the enriched HNSCC cancer stem cells. Over-expression of RXRα was able to expand the CSC-like properties in HNSCC cells, while knockdown of RXRα could repress the stemness respectively...
December 6, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29228285/matrix-factorization-based-data-fusion-for-the-prediction-of-lncrna-disease-associations
#3
Guangyuan Fu, Jun Wang, Carlotta Domeniconi, Guoxian Yu
Motivation: Long non-coding RNAs (lncRNAs) play crucial roles in complex disease diagnosis, prognosis, prevention, and treatment, but only a small portion of lncRNA-disease associations have been experimentally verified. Various computational models have been proposed to identify lncRNA-disease associations by integrating heterogeneous data sources. However, existing models generally ignore the intrinsic structure of data sources or treat them as equally relevant, while they may not be...
December 7, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29228205/associations-between-polymorphisms-in-genes-related-to-estrogen-metabolism-and-function-and-prostate-cancer-risk-results-from-the-prostate-cancer-prevention-trial
#4
Li Tang, Mary E Platek, Song Yao, Cathee Till, Phyllis J Goodman, Catherine M Tangen, Yue Wu, Elizabeth A Platz, Marian L Neuhouser, Frank Z Stanczyk, Juergen K V Reichardt, Regina M Santella, Ann Hsing, William D Figg, Scott M Lippman, Ian M Thompson, Christine B Ambrosone
Substantial preclinical data suggest estrogen's carcinogenic role in prostate cancer development; however, epidemiological evidence based on circulating estrogen levels is largely null. Compared with circulating estrogen, the intraprostatic estrogen milieu may play a more important role in prostate carcinogenesis. Using a nested case-control design in the Prostate Cancer Prevention Trial (PCPT), we examined associations of genetic variants of genes that are involved in estrogen synthesis, metabolism and function with prostate cancer risk...
December 8, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29227817/comparing-granulocyte-colony-stimulating-factor-filgrastim-and-pegfilgrastim-to-its-biosimilars-in-terms-of-efficacy-and-safety-a-meta-analysis-of-randomised-clinical-trials-in-breast-cancer-patients
#5
Edoardo Botteri, Andriy Krendyukov, Giuseppe Curigliano
BACKGROUND: Granulocyte colony-stimulating factors (G-CSFs) are widely used to prevent neutropenia in cancer patients undergoing myelosuppressive chemotherapy. Several biosimilar medicines of G-CSF are now available, with their development involving a step-wise series of comparisons to demonstrate similarity to reference biologics. Randomised clinical trials (RCTs) are considered confirmatory, and for G-CSF biosimilars, patients with breast cancer (BC) undergoing myelosuppressive chemotherapy are the most sensitive population in which to confirm similarity...
December 8, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29227732/%C3%AE-8-oxoguanine-dna-glycosylase-overexpression-reduces-oxidative-stress-induced-mitochondrial-dysfunction-and-apoptosis-through-the-jnk-signaling-pathway-in-human-bronchial-epithelial-cells
#6
Ziying Lin, Wenya Xu, Chunyan Li, Yahong Wang, Lawei Yang, Bao'an Zou, Shenglan Gao, Weimin Yao, Zeqing Song, Gang Liu
8-Oxoguanine DNA glycosylase (OGG1) is responsible for repairing 8-oxo-7,8-dihydroguanine (8-oxoG). Our previous study demonstrated that α-OGG1 protects cells from oxidative damage-induced apoptosis and mitochondrial dysfunction in human lung cancer cells. However, the function of β-OGG1 remains to be elucidated. In this study, we demonstrated that overexpressed β-OGG1 has the same role as α-OGG1 in protecting human bronchial epithelial cells from apoptosis and mitochondrial dysfunction. Furthermore, flow cytometry, confocal microscopy, and western blotting showed that the overexpression of β-OGG1 could block oxidant-induced apoptosis in human bronchial epithelial cells...
December 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/29227654/synergistic-chemopreventive-and-therapeutic-effects-of-co-drug-ua-met-implication-in-tumor-metastasis
#7
Guirong Zheng, Zhichun Shen, Aixiao Xu, Kai Jiang, Pengyu Wu, Xiang Yang, Xian Chen, Jingwei Shao
The anticancer properties of ursolic acid (UA) and metformin (Met) have been well demonstrated. However, whether these compounds can act synergistically to prevent and treat cancer is not known. We present in this study, the synergism between UA and Met, and that of a new codrug made of UA and Met (UA-Met) against several cancer cell lines. The combination of high concentration of UA (25, 50, 75, 100 μM) and Met (5, 10, 20, 40 mM) resulted in synergetic cytotoxicity on MDA-MB-231 and MCF-7 cells (CI < 0...
December 11, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29227648/quinazolinone-based-anticancer-agents-synthesis-anti-proliferative-sar-anti-tubulin-activity-and-tubulin-co-crystal-structure
#8
Wolfgang Dohle, Fabrice L Jourdan, Gregory Menchon, Andrea E Prota, Paul A Foster, Pascoe Mannion, Ernest Hamel, Mark P Thomas, Philip G Kasprzyk, Eric Ferrandis, Michel O Steinmetz, Mathew P Leese, Barry V L Potter
Quinazolinone-based anti-cancer agents were designed, decorated with functional groups from a 2-methoxyestradiol-based microtubule disruptor series, incorporating the aryl sulfamate motif of steroid sulfatase (STS) inhibitors. The steroidal AB-ring system was mimicked, favoring conformations with an N-2 substituent occupying D-ring space. Evaluation against breast and prostate tumor cell lines identified 7b with DU-145 anti-proliferative activity (GI50 300 nM). A preliminary structure-activity relationship afforded compounds (e...
December 11, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29227203/therapeutic-charm-of-quercetin-and-its-derivatives-a-review-of-research-and-patents
#9
Ajay Sharma, Dharambir Kashyap, Katrin Sak, Hardeep Singh Tuli, Anil K Sharma
Bioactive polyphenolic compounds derived from plants are being utilized for prevention of various chronic diseases including cancer and cardiovascular disorders. Quercetin, a potential poly-phenolic flavonol, found in onions, apples and berries, has been implicated against cancer proliferation, chronic inflammation and various other oxidative manifestations. Evidences suggested that quercetin negatively regulates the numerous crucial signaling pathways associated with life-threatening diseases. Major signaling pathways including NF-κB, MAPK, PI3K-AKT and mTOR are found to be regulated by quercetin...
December 11, 2017: Pharmaceutical Patent Analyst
https://www.readbyqxmd.com/read/29226720/memantine-induces-apoptosis-and-inhibits-cell-cycle-progression-in-lncap-prostate-cancer-cells
#10
G Albayrak, E Konac, A U Dikmen, C Y Bilen
Deregulated cancer cell metabolism plays an important role in cancer progression. Cancer cell metabolism has been in the centre of attention in therapeutical cancer cell targeting. Repurposed chemical agents, such as metformin and aspirin, have been studied extensively as preventive and therapeutic agents. Metformin is Food and Drug administration (FDA)-approved antidiabetic drug cheaper than other chemotherapeutic agents that were shown to have anticancer effects. Memantine is an FDA-approved Alzheimer's drug...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29226049/unresectable-undifferentiated-embryonal-sarcoma-of-the-liver-in-an-adult-male-treated-with-chemotherapy-and-orthotopic-liver-transplantation
#11
Zarak H Khan, Kamran Ilyas, Hamza H Khan, Haider Ghazanfar, Qulsoom Hussain, Faisal Inayat, Muhammad Yasir, Rizwan Asim
Undifferentiated embryonal sarcoma of the liver (UESL) is a malignancy of mesenchymal origin observed predominantly in the pediatric population and very rarely in adults. We describe the case of a 21-year-old male who presented with acute onset of right upper quadrant pain and distention. Physical examination of the patient revealed right upper quadrant tenderness with the lower border of the liver palpable, 4 cm below the right costal margin. Laboratory tests performed on admission showed that the patient's liver function tests, urinalysis, complete blood count, and basic metabolic panel were within reference range...
October 8, 2017: Curēus
https://www.readbyqxmd.com/read/29225797/seasonal-clustering-of-sinopulmonary-mucormycosis-in-patients-with-hematologic-malignancies-at-a-large-comprehensive-cancer-center
#12
Shobini Sivagnanam, Dhruba J Sengupta, Daniel Hoogestraat, Rupali Jain, Zach Stednick, David N Fredricks, Paul Hendrie, Estella Whimbey, Sara T Podczervinski, Elizabeth M Krantz, Jeffrey S Duchin, Steven A Pergam
Background: Invasive Mucorales infections (IMI) lead to significant morbidity and mortality in immunocompromised hosts. The role of season and climatic conditions in case clustering of IMI remain poorly understood. Methods: Following detection of a cluster of sinopulmonary IMIs in patients with hematologic malignancies, we reviewed center-based medical records of all patients with IMIs and other invasive fungal infections (IFIs) between January of 2012 and August of 2015 to assess for case clustering in relation to seasonality...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29225779/risk-of-solid-cancer-in-patients-with-mast-cell-activation-syndrome-results-from-germany-and-usa
#13
Gerhard J Molderings, Thomas Zienkiewicz, Jürgen Homann, Markus Menzen, Lawrence B Afrin
Background:  It has been shown repeatedly that mast cells can promote or prevent cancer development and growth. If development and/or progression of a solid cancer is substantially influenced by mast cell activity, the frequencies of occurrence of solid cancers in patients with primary mast cells disorders would be expected to differ from the corresponding prevalence data in the general population. In fact, a recent study demonstrated that patients with systemic mastocytosis (i.e., a rare neoplastic variant of the primary mast cell activation disease) have increased risk for solid cancers, in particular melanoma and non-melanoma skin cancers...
2017: F1000Research
https://www.readbyqxmd.com/read/29225776/the-sedentary-r-evolution-have-we-lost-our-metabolic-flexibility
#14
Jens Freese, Rainer Johannes Klement, Begoña Ruiz-Núñez, Sebastian Schwarz, Helmut Lötzerich
During the course of evolution, up until the agricultural revolution, environmental fluctuations forced the human species to develop a flexible metabolism in order to adapt its energy needs to various climate, seasonal and vegetation conditions. Metabolic flexibility safeguarded human survival independent of food availability. In modern times, humans switched their primal lifestyle towards a constant availability of energy-dense, yet often nutrient-deficient, foods, persistent psycho-emotional stressors and a lack of exercise...
2017: F1000Research
https://www.readbyqxmd.com/read/29225696/colorectal-cancer-towards-new-challenges-and-concepts-of-preventive-healthcare
#15
EDITORIAL
Lidia Colace, Stefania Boccia, Ruggero De Maria, Ann Zeuner
Colorectal cancer (CRC) holds the woeful record of being the most preventable but least prevented type of cancer. Although healthy lifestyles and screening programs associated to early polyp removal greatly reduce CRC incidence and CRC-related death, the overall lack of information and of effective preventive policies is promoting an overwhelming global escalation of this disease. Moreover, new challenges such as the increasing occurrence of aggressive CRC in young adults highlight underlying changes not only in the incidence but also in the nature of this disease...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/29225690/do-we-need-regional-guidelines-for-breast-cancer-management-in-the-mena-region-mena-breast-cancer-guidelines-project
#16
Reham Fayed, Dina Hamza, Heba Abdallah, Mohamed Kelany, Amira Tahseen, Adel T Aref
Purpose: Breast cancer is the most common cancer among females worldwide in general and in the Middle East and the North African region (MENA region) in particular. Management of breast cancer in the MENA region faces a lot of challenges, which include younger age at presentation, aggressive behaviour, lack of national breast screening programmes and lack of reliable data registries as well as socioeconomic factors. These factors make applying the international guidelines for breast cancer management very challenging...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/29225297/body-mass-index-and-pancreatic-cancer-incidence-a-pooled-analysis-of-nine-population-based-cohort-studies-with-more-than-340-000-japanese-subjects
#17
Yuriko N Koyanagi, Keitaro Matsuo, Hidemi Ito, Akiko Tamakoshi, Yumi Sugawara, Akihisa Hidaka, Keiko Wada, Isao Oze, Yuri Kitamura, Rong Liu, Tetsuya Mizoue, Norie Sawada, Chisato Nagata, Kenji Wakai, Tomio Nakayama, Atsuko Sadakane, Keitaro Tanaka, Manami Inoue, Shoichiro Tsugane, Shizuka Sasazuki
BACKGROUND: A high body mass index (BMI) has been proposed as an important risk factor for pancreatic cancer. However, this association of BMI with pancreatic cancer risk has not been confirmed in Asian populations. METHODS: We evaluated the association between BMI (either at baseline or during early adulthood) and pancreatic cancer risk by conducting a pooled analysis of nine population-based prospective cohort studies in Japan with more than 340,000 subjects. Summary hazard ratios (HRs) were estimated by pooling study-specific HRs for unified BMI categories with a random-effects model...
December 9, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/29225137/valproic-acid-a-histone-deacetylase-inhibitor-induces-apoptosis-in-breast-cancer-stem-cells
#18
Nazlıhan Aztopal, Merve Erkisa, Elif Erturk, Engin Ulukaya, Asuman Hatice Tokullugil, Ferda Ari
Cancer stem-like cells (CSCs) are a cell subpopulation that can reinitiate tumors, resist chemotherapy, give rise to metastases and lead to disease relapse because of an acquired resistance to apoptosis. Especially, epigenetic alterations play a crucial role in the regulation of stemness and also have been implicated in the development of drug resistance. Hence, in the present study, we examined the cytotoxic and apoptotic activity of valproic acid (VPA) as an inhibitor of histone deacetylases (HDACs) against breast CSCs (BCSCs)...
December 7, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29225112/fisetin-a-bioactive-phytochemical-with-potential-for-cancer-prevention-and-pharmacotherapy
#19
REVIEW
Dharambir Kashyap, Ajay Sharma, Katrin Sak, Hardeep Singh Tuli, Harpal Singh Buttar, Anupam Bishayee
A wide variety of chronic diseases, such as neurodegenerative and cardiovascular disorders, diabetes mellitus, osteoarthtitis, obesity and various cancers, are now being treated with cost effective phytomedicines. Since synthetic medicines are very expensive, concerted efforts are being made in developing and poor countries to discover cost effective medicines for the treatment of non-communicable diseases (NCDs). Understanding the underlying mechanisms of bioactive medicines from natural sources would not only open incipient avenues for the scientific community and pharmaceutical industry to discover new drug molecules for the therapy of NCDs, but also help to garner knowledge for alternative therapeutic approaches for the management of chronic diseases...
December 7, 2017: Life Sciences
https://www.readbyqxmd.com/read/29225106/tannic-acid-ta-a-molecular-tool-for-chelating-and-imaging-labile-iron
#20
Isara Phiwchai, Wiphawee Yuensook, Natsaree Sawaengsiriphon, Saowalak Krungchanuchat, Chalermchai Pilapong
This report presents the potential utilization of tannic acid (TA) as a natural iron chelator. TA is capable of binding with small ferric complexes without competitive binding with endogenous iron-containing molecules such as ferritin and transferrin. It was observed that the extracellular iron binding of TA resulted in the formation of self-assembled Fe3+-TA complexes, which were then taken up by HepG2 cells via phagocytosis pathway with autophagy-inducing properties. Obviously, TA was found to inhibit iron-induced HepG2 cell growth...
December 7, 2017: European Journal of Pharmaceutical Sciences
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