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https://www.readbyqxmd.com/read/29027915/a-combination-of-immune-checkpoint-inhibition-with-metronomic-chemotherapy-as-a-way-of-targeting-therapy-resistant-cancer-cells
#1
REVIEW
Irina Kareva
Therapeutic resistance remains a major obstacle in treating many cancers, particularly in advanced stages. It is likely that cytotoxic lymphocytes (CTLs) have the potential to eliminate therapy-resistant cancer cells. However, their effectiveness may be limited either by the immunosuppressive tumor microenvironment, or by immune cell death induced by cytotoxic treatments. High-frequency low-dose (also known as metronomic) chemotherapy can help improve the activity of CTLs by providing sufficient stimulation for cytotoxic immune cells without excessive depletion...
October 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29027830/occurrence-types-properties-and-interactions-of-phenolic-compounds-with-other-food-constituents-in-oil-bearing-plants
#2
Muhammad H Alu'datt, Taha Rababah, Mohammad N Alhamad, Ghaid J Al-Rabadi, Carole C Tranchant, Ali Almajwal, Stan Kubow, Inteaz Alli
Phenolic phytochemicals have become of interest due to their therapeutic potential, particularly with regards to their anti-cancer, anti-inflammatory, hypolipidemic, and hypoglycemic properties. An evolving area of research involving phenolics in foods and their products pertains to the functional, biological, and nutritional consequences resulting from the binding between certain phenolic compounds and the macronutrient and micronutrient constituents of foods. The goal of this review is to provide a summary of studies investigating endogenous phenolic interactions with major components in food systems, including carbohydrates, proteins, lipids, minerals and vitamins, with a focus on the phenolic compounds and nutrients in oil-bearing plants...
October 13, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29017516/identification-of-a-rac-akt-like-gene-in-leishmania-parasites-as-a-putative-therapeutic-target-in-leishmaniasis
#3
Rubén E Varela-M, Rodrigo Ochoa, Carlos E Muskus, Antonio Muro, Faustino Mollinedo
BACKGROUND: Leishmaniasis is one of the world's most neglected diseases caused by at least 20 different species of the protozoan parasite Leishmania. Although new drugs have become recently available, current therapy for leishmaniasis is still unsatisfactory. A subgroup of serine/threonine protein kinases named as related to A and C protein kinases (RAC), or protein kinase B (PKB)/AKT, has been identified in several organisms including Trypanosoma cruzi parasites. PKB/AKT plays a critical role in mammalian cell signaling promoting cell survival and is a major drug target in cancer therapy...
October 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28988409/the-nutritional-and-health-benefits-of-kiwiberry-actinidia-arguta-a-review
#4
Piotr Latocha
The kiwiberry (Actinidia arguta) is a new product on the market that is enjoying growing consumer acceptance around the world. This widespread interest has created increased demand for identification of the kiwiberry's nutritional health benefits. Containing over 20 essential nutrients and a range of vitamins, the kiwiberry comes near the top of fruits classed as superfoods. It is one of the richest sources of vitamin C with up to 430 mg/100 g fresh weight (FW) and is considered the richest dietary source of myo-inositol (up to 982 mg/100 g FW)...
October 7, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28974455/melatonin-as-an-angiogenesis-inhibitor-to-combat-cancer-mechanistic-evidence
#5
REVIEW
Nasser Hashemi Goradel, Mohammad Hossein Asghari, Milad Moloudizargari, Babak Negahdari, Hamed Haghi-Aminjan, Mohammad Abdollahi
Melatonin, a pineal indolamine, participates in different body functions and is shown to possess diverse biological activities such as anti-tumor action. Angiogenesis inhibition is one of the mechanisms by which melatonin exerts its oncostatic effects. Increased angiogenesis is a major feature of tumor progression, thus angiogenesis inhibition is a critical step in cancer therapy. Melatonin employs a variety of mechanisms to target nutrients and oxygen supply to cancer cells. At the transcriptional level, hypoxia induced factor-1α (HIF-1α) and the genes under its control, such as vascular endothelial growth factor (VEGF) are the main targets of melatonin for inhibition of angiogenesis...
November 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28954710/mechanisms-of-anti-cancer-effects-of-ascorbate-cytotoxic-activity-and-epigenetic-modulation
#6
REVIEW
Domenico Mastrangelo, Elvira Pelosi, Germana Castelli, Francesco Lo-Coco, Ugo Testa
Vitamin C (Vit C or Ascorbate) is essential for many fundamental biochemical processes. Vit C is an essential nutrient with redox functions at normal physiologic concentrations. The main physiologic function of this vitamin is related to its capacity to act as a co-factor for a large family of enzymes, collectively known as Fe and 2-oxoglutarate-dependent dioxygenases. It also modulates epigenetic gene expression through the control of TET enzymes activity. Vit C also has several biological properties allowing to restore the deregulated epigenetic response observed in many tumors...
September 21, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28950000/glutaminase-is-essential-for-the-growth-of-triple-negative-breast-cancer-cells-with-a-deregulated-glutamine-metabolism-pathway-and-its-suppression-synergizes-with-mtor-inhibition
#7
Michael Lampa, Heike Arlt, Timothy He, Beatriz Ospina, Jason Reeves, Bailin Zhang, Joshua Murtie, Gejing Deng, Claude Barberis, Dietmar Hoffmann, Hong Cheng, Jack Pollard, Christopher Winter, Victoria Richon, Carlos Garcia-Escheverria, Francisco Adrian, Dmitri Wiederschain, Lakshmi Srinivasan
Tumor cells display fundamental changes in metabolism and nutrient uptake in order to utilize additional nutrient sources to meet their enhanced bioenergetic requirements. Glutamine (Gln) is one such nutrient that is rapidly taken up by tumor cells to fulfill this increased metabolic demand. A vital step in the catabolism of glutamine is its conversion to glutamate by the mitochondrial enzyme glutaminase (GLS). This study has identified GLS a potential therapeutic target in breast cancer, specifically in the basal subtype that exhibits a deregulated glutaminolysis pathway...
2017: PloS One
https://www.readbyqxmd.com/read/28920157/mechanisms-of-cancer-cell-killing-by-sea-cucumber-derived-compounds
#8
REVIEW
Teresa Liliana Wargasetia, Widodo
The aim of cancer therapy is to specifically eradicate tumor cells while causing minimal damage to normal tissues and minimal side-effects. Because of this, the use of natural substances with low toxicity is a good option. Sea cucumbers are one of many potential marine animals that contain valuable nutrients and medicinal properties. The medicinal value of sea cucumbers is attributed to the presence of bioactive agents with promising biological and pharmacological properties that include cytotoxic activity, induction of apoptosis, cell cycle arrest, inhibition of tumor growth, anti-metastatic and anti-angiogenic properties, and inhibition of drug resistance...
September 18, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28915711/vitamin-k-and-its-analogs-potential-avenues-for-prostate-cancer-management
#9
REVIEW
Subramanyam Dasari, Syed M Ali, Guoxing Zheng, Aoshuang Chen, Venkata Satish Dontaraju, Maarten C Bosland, Andre Kajdacsy-Balla, Gnanasekar Munirathinam
Epidemiological studies have demonstrated a relationship between cancer incidence and dietary habits. Especially intake of certain essential nutrients like vitamins has been shown to be beneficial in experimental studies and some clinical trials. Vitamin K (VK) is an essential nutrient involved in the blood clotting cascade, and there are considerable experimental data demonstrating its potential anticancer activity in several cancer types including prostate cancer. Previous in vitro and in vivo studies have focused mainly on anti-oxidative effects as the underlying anticancer mechanism of VK...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915616/tdp-43-hdac6-axis-promoted-tumor-progression-and-regulated-nutrient-deprivation-induced-autophagy-in-glioblastoma
#10
Tzu-Wei Lin, Ming-Teh Chen, Liang-Ting Lin, Pin-I Huang, Wen-Liang Lo, Yi-Ping Yang, Kai-Hsi Lu, Yi-Wei Chen, Shih-Hwa Chiou, Cheng-Wen Wu
Glioblastoma Multiforme (GBM) is a lethal primary brain tumor with poor survival lifespan and dismal outcome. Surgical resection of GBM is greatly limited due to the biological significance of brain, giving rise to tumor relapse in GBM patients. Transactive response DNA binding protein-43 (TDP-43) is a DNA/RNA-binding protein known for causing neurodegenerative diseases through post-translational modification; but little is known about its involvement in cancer development. In this study, we found that nutrient deprivation in GBM cell lines elevated TDP-43 expression by a mechanism of evasion from ubiquitin-dependent proteolytic pathway, and subsequently activated the autophagy process...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28843267/screening-for-circulating-tumour-cells-allows-early-detection-of-cancer-and-monitoring-of-treatment-effectiveness-an-observational-study
#11
Karin Ried, Peter Eng, Avni Sali
Background: Circulating-Tumour-Cells (CTC) provide a blood biomarker for early carcinogenesis, cancer progression and treatment effectiveness. An increase in CTCs is associated with cancer progression, a CTC decrease with cancer containment or remission. Several technologies have been developed to identify CTC, including the validated Isolation-by-Size-of-Epithelial-Tumour (ISET, Rarecells) technology, combining blood filtration and microscopy using standard histo-pathological criteria. Methods: This observational study compared CTC count to cancer status and cancer risk, by monitoring treatment effectiveness in cancer patients and by screening for CTC in asymptomatic patients with risk factors, including family history of cancer...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28813436/enhancement-of-the-production-of-l-glutaminase-an-anticancer-enzyme-from-aeromonas-veronii-by-adaptive-and-induced-mutation-techniques
#12
S Aravinth Vijay Jesuraj, Md Moklesur Rahman Sarker, Long Chiau Ming, S Marylin Jeya Praya, M Ravikumar, Wong Tin Wui
Microbial anti-cancer enzymes have been proven to be effective and economical agents for cancer treatment. Aeromonas veronii has been identified as a microorganism with the potential to produce L-glutaminase, an anticancer agent effective against acute lymphocytic leukaemia. In this study, a selective medium of Aeromonas veronii was used to culture the microorganism. Strain improvement was done by adaptive and induced mutational techniques. A selective minimal agar media was incorporated for the growth of the strain which further supports adaptive mutation...
2017: PloS One
https://www.readbyqxmd.com/read/28802749/enhanced-fluorescence-detection-of-proteins-using-zno-nanowires-integrated-inside-microfluidic-chips
#13
Lingxia Guo, Yuchen Shi, Xiangfei Liu, Zhitao Han, Zhenjie Zhao, Yong Chen, Wenhui Xie, Xin Li
Nanostructure-enhanced detection is promising for a number of applications such as early cancer diagnosis, environmental monitoring and mine safety, among which nanostructures integrated microfluidic chips offers unique advantage of ultra-low quantitative analyses. Here, dense ZnO nanowires of varied diameter and length were obtained by changing the content of polyethyleneimine (PEI) and growth time via simple hydrothermal growth in microfluidic channels for protein detection. We showed that this approach was superiorly efficient compared to the conventional hydrothermal method due to the flow-induced replenishment of nutrient and the effect of shear stress...
August 3, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28792588/immunosuppressive-enzymes-in-the-tumor-microenvironment
#14
REVIEW
Valérie Molinier-Frenkel, Flavia Castellano
Antigen encounter by T lymphocytes induces important metabolic changes. Antitumor T lymphocytes enter in a metabolic competition with tumors, which divert feedback mechanisms of the immune response. Immunosuppressive enzymes, modifying the nutrient availability and leading to the production of toxic catabolites, represent one of these mechanisms, contributing to the metabolic halo in which T lymphocytes evolve during immune responses. Two classes of immunosuppressive enzymes, expressed by the tumor cells or by cells of the microenvironment, have been described: those catabolizing essential or semiessential amino acids, tryptophan, arginine, and phenylalanine and the ectoenzymes, which degrade the ATP to produce adenosine...
October 2017: FEBS Letters
https://www.readbyqxmd.com/read/28750681/drug-induced-amino-acid-deprivation-as-strategy-for-cancer-therapy
#15
REVIEW
Marcus Kwong Lam Fung, Godfrey Chi-Fung Chan
Cancer is caused by uncontrollable growth of neoplastic cells, leading to invasion of adjacent and distant tissues resulting in death. Cancer cells have specific nutrient(s) auxotrophy and have a much higher nutrient demand compared to normal tissues. Therefore, different metabolic inhibitors or nutrient-depleting enzymes have been tested for their anti-cancer activities. We review recent available laboratory and clinical data on using various specific amino acid metabolic pathways inhibitors in treating cancers...
July 27, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28707601/potential-role-of-natural-compounds-as-anti-angiogenic-agents-in-cancer
#16
Muthu K Shanmugam, Sudha Warrier, Alan Prem Kumar, Gautam Sethi, Frank Arfuso
BACKGROUND: Neovascularization, also known as angiogenesis, is the process of capillary sprouting from pre-existing blood vessels. This physiological process is a hallmark event in normal embryonic development as blood vessels generally supply both oxygen and nutrients to the cells of the body. Any disruption in this process can lead to the development of various chronic diseases, including cancer. In cancer, aberrant angiogenesis plays a prominent role in maintaining sustained tumor growth to malignant phenotypes and promoting metastasis...
July 12, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28695747/novel-strategies-for-anti-aging-drug-discovery
#17
REVIEW
Komal Saraswat, Syed Ibrahim Rizvi
Scientific achievements in the last few decades, leading to effective therapeutic interventions, have dramatically improved human life expectancy. Consequently, aging has become a significant problem and represents the major risk factor for most human pathologies including diabetes, cardiovascular diseases, neurological disorders, and cancer. Scientific discoveries over the past two decades have been instrumental in dissecting molecular mechanism(s) which play important roles in determining longevity. The same understanding has also led to the acknowledgement of the plurality of 'causes' which act either alone or in combination to create the condition which can be defined as 'aging'...
September 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28677502/pten-insulin-resistance-and-cancer
#18
Aiqing Li, Minzi Qiu, Hongbo Zhou, Tao Wang, Wen Guo
BACKGROUND: The tumor suppressor PTEN serves as a negative regulator of PI3K/PTEN/Akt signaling pathway that regulates cellular functions such as cell growth, differentiation, proliferation and migration. The PI3K/PTEN/Akt signaling cascades might also have effect on glucose uptake via translocation of GLUT-4. Insulin controls energy storage and the whole body glucose homeostasis. Its binding to insulin receptor on the surface of diverse cells allows glucose entry into cells, and activates a variety of cellular actions...
July 4, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28674495/anti-allergic-hydroxy-fatty-acids-from-typhonium-blumei-explored-through-chemgps-np
#19
Michal Korinek, Yi-Hong Tsai, Mohamed El-Shazly, Kuei-Hung Lai, Anders Backlund, Shou-Fang Wu, Wan-Chun Lai, Tung-Ying Wu, Shu-Li Chen, Yang-Chang Wu, Yuan-Bin Cheng, Tsong-Long Hwang, Bing-Hung Chen, Fang-Rong Chang
Increasing prevalence of allergic diseases with an inadequate variety of treatment drives forward search for new alternative drugs. Fatty acids, abundant in nature, are regarded as important bioactive compounds and powerful nutrients playing an important role in lipid homeostasis and inflammation. Phytochemical study on Typhonium blumei Nicolson and Sivadasan (Araceae), a folk anti-cancer and anti-inflammatory medicine, yielded four oxygenated fatty acids, 12R-hydroxyoctadec-9Z,13E-dienoic acid methyl ester (1) and 10R-hydroxyoctadec-8E,12Z-dienoic acid methyl ester (2), 9R-hydroxy-10E-octadecenoic acid methyl ester (3), and 12R(*)-hydroxy-10E-octadecenoic acid methyl ester (4)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28665313/fine-tuning-tumor-endothelial-cells-to-selectively-kill-cancer
#20
REVIEW
Emilie Uldry, Seraina Faes, Nicolas Demartines, Olivier Dormond
Tumor endothelial cells regulate several aspects of tumor biology, from delivering oxygen and nutrients to shaping the immune response against a tumor and providing a barrier against tumor cell dissemination. Accordingly, targeting tumor endothelial cells represents an important modality in cancer therapy. Whereas initial anti-angiogenic treatments focused mainly on blocking the formation of new blood vessels in cancer, emerging strategies are specifically influencing certain aspects of tumor endothelial cells...
June 30, 2017: International Journal of Molecular Sciences
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