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Cancer metabolism

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https://www.readbyqxmd.com/read/29684875/toxicoproteomic-analysis-of-human-lung-epithelial-cells-exposed-to-steel-industry-ambient-particulate-matter-pm-reveals-possible-mechanism-of-pm-related-carcinogenesis
#1
S Senthil Kumar, P Muthuselvam, V Pugalenthi, N Subramanian, K M Ramkumar, T Suresh, T Suzuki, P Rajaguru
Toxicoproteomic analysis of steel industry ambient particulate matter (PM) that contain high concentrations of PAHs and metals was done by treating human lung cancer cell-line, A549 and the cell lysates were analysed using quantitative label-free nano LC-MS/MS. A total of 18,562 peptides representing 1576 proteins were identified and quantified, with 196 proteins had significantly altered expression in the treated cells. Enrichment analyses revealed that proteins associated to redox homeostsis, metabolism, and cellular energy generation were inhibited while, proteins related to DNA damage and repair and other stresses were over expressed...
April 20, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29684851/mitochondrial-dna-content-reduction-induces-aerobic-glycolysis-and-reversible-resistance-to-drug-induced-apoptosis-in-sw480-colorectal-cancer-cells
#2
Jing-Jing Mou, Jin Peng, Ying-Ying Shi, Na Li, You Wang, Yuan Ke, Yun-Feng Zhou, Fu-Xiang Zhou
Mutations and reductions in mitochondrial DNA (mtDNA), which are frequent in human tumors, may contribute to enhancing their malignant phenotypes. However, the effects of mtDNA abnormalities in colorectal cancer remain largely unknown. In this study, mtDNA-reduced cell model was established by partial depletion of mtDNA in SW480 cells and the effects of mtDNA reduction in colorectal cancer cells were investigated. We found that mtDNA-reduced cells had enhanced glucose uptake and generated markedly higher level of lactate...
April 20, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29684818/glut1-protects-prostate-cancer-cells-from-glucose-deprivation-induced-oxidative-stress
#3
Pedro Gonzalez-Menendez, David Hevia, Rebeca Alonso-Arias, Alejandro Alvarez-Artime, Aida Rodriguez-Garcia, Sandrina Kinet, Ivan Gonzalez-Pola, Naomi Taylor, Juan C Mayo, Rosa M Sainz
Glucose, chief metabolic support for cancer cell survival and growth, is mainly imported into cells by facilitated glucose transporters (GLUTs). The increase in glucose uptake along with tumor progression is due to an increment of facilitative glucose transporters as GLUT1. GLUT1 prevents cell death of cancer cells caused by growth factors deprivation, but there is scarce information about its role on the damage caused by glucose deprivation, which usually occurs within the core of a growing tumor. In prostate cancer (PCa), GLUT1 is found in the most aggressive tumors, and it is regulated by androgens...
April 12, 2018: Redox Biology
https://www.readbyqxmd.com/read/29684618/everolimus-is-a-new-anti-cancer-molecule-metabolic-side-effects-as-lipid-disorders-and-hyperglycemia
#4
REVIEW
L Morviducci, F Rota, L Rizza, P Di Giacinto, S Ramponi, M R Nardone, C Tubili, A Lenzi, P Zuppi, R Baldelli
In the last few years, molecular targeted therapies have replaced traditional cytotoxic chemotherapy in the fight against many cancers to the extent that our understanding of tumor biology has become more sophisticated. This shift has markedly changed adverse event profiles, compared to cytotoxic chemotherapy, affecting a diverse range of organ systems. Everolimus was approved by the FDA in 2011 for the treatment of progressive pancreatic NE tumors (Yao, 2011; Jensenn, 2012). It is an inhibitor of mammalian target of rapamycin (mTOR) and exhibits antitumor activity via disruption of various signaling pathways and it's used in the treatment of advanced renal cell cancer, breast cancer and neuroendocrine tumors (NET); it's used also as anti-rejection agent for transplantation but with lower doses for anti-rejection (1...
April 20, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29684520/phosphate-toxicity-and-tumorigenesis
#5
REVIEW
Ronald B Brown, Mohammed S Razzaque
In this brief opinion article, we briefly summarized evidence that cellular phosphate burden from phosphate toxicity is a pathophysiological determinant of cancer cell growth. Tumor cells express more phosphate cotransporters and store more inorganic phosphate than normal cells, and dysregulated phosphate homeostasis is associated with the genesis of various human tumors. High dietary phosphate consumption causes the growth of lung and skin tumors in experimental animal models. Experimental studies show that excessive phosphate burden induces growth-promoting cell signaling, stimulates neovascularization, and is associated with chromosome instability and metastasis...
April 20, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29684339/sorafenib-induced-tumor-lysis-syndrome-in-a-patient-with-metastatic-hepatocellular-carcinoma
#6
Sardar Zakariya Imam, Mohammad Faizan Zahid, Muhammad Asad Maqbool
Tumor lysis syndrome is a potentially lethal complication of chemotherapy, usually associated with aggressive hematologic malignancies. We describe the case of a young patient with metastatic hepatocellular cancer who developed rapid and fatal tumor lysis syndrome following initiation of sorafenib therapy. Although rare with sorafenib therapy for hepatocellular carcinoma, tumor lysis syndrome is serious complication. Patients with a high burden of disease at therapy initiation should have their metabolic parameters measured prior to starting therapy and closely followed for the first 1-2 weeks while being treated...
April 17, 2018: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/29684136/effects-of-a-group-mediated-exercise-and-dietary-intervention-in-the-treatment-of-prostate-cancer-patients-undergoing-androgen-deprivation-therapy-results-from-the-idea-p-trial
#7
Brian C Focht, Alexander R Lucas, Elizabeth Grainger, Christina Simpson, Ciaran M Fairman, Jennifer M Thomas-Ahner, Jackie Buell, J Paul Monk, Amir Mortazavi, Steven K Clinton
Background: Although androgen-deprivation therapy (ADT) is the foundation of treatment for prostate cancer, the physiological impacts of ADT result in functional decline and enhanced risk of chronic disease and metabolic syndrome. Purpose: The Individualized Diet and Exercise Adherence Pilot Trial (IDEA-P) is a single-blind, randomized, pilot trial comparing the effects of a group-mediated, cognitive-behavioral (GMCB) exercise and dietary intervention (EX+D) with those of a standard-of-care (SC) control during the treatment of prostate cancer patients undergoing ADT...
April 19, 2018: Annals of Behavioral Medicine: a Publication of the Society of Behavioral Medicine
https://www.readbyqxmd.com/read/29683977/slco1b1-polymorphism-is-a-drug-response-predictive-marker-for-advanced-pancreatic-cancer-patients-treated-with-gemcitabine-s-1-or-gemcitabine-plus-s-1
#8
Yasunori Sato, Hideki Ueno, Tatsuya Ioka, Shinichi Ohkawa, Masafumi Ikeda, Tomotaka Shimamura, Akihito Tsuji, Yoshiaki Tsuchiya, Junji Furuse, Hiroshi Ishii, Ken Furuya, Haruo Iguchi, Yoshihiro Saito, Nahoko Kaniwa, Jun-Ichi Sawada, Hiromi Sakamoto, Akihiro Sekine, Takuji Okusaka, Teruhiko Yoshida
OBJECTIVES: The aim of this study was to evaluate the effects of single-nucleotide polymorphisms (SNPs) on advanced pancreatic cancer risk and overall survival (OS) in a candidate-gene approach. METHODS: Overall, 5438 SNPs in 219 candidate genes encoding several drug-metabolizing enzymes or transporters were analyzed. In the screening study, 3 SNPs were found associated with OS (P ≤ 0.0005). We validated these SNPs as part of the randomized phase 3 study (GEST study)...
April 19, 2018: Pancreas
https://www.readbyqxmd.com/read/29683930/importance-of-18f-fdg-pet-ct-to-select-patients-with-nonresectable-colorectal-liver-metastases-for-liver-transplantation
#9
Harald Grut, Mona-Elisabeth Revheim, Pål-Dag Line, Svein Dueland
OBJECTIVE: The aim of this study was to evaluate fluorine-18-fluorodeoxyglucose (F-FDG) PET/CT for the selection of patients with nonresectable colorectal liver metastases (NCLM) for liver transplantation (LT). In the secondary cancer study, we reported an improved 5-year overall survival in patients treated with LT for NCLM (56%) compared with chemotherapy (9%). However, many patients were rejected for LT owing to the detection of extrahepatic disease at preoperative imaging. PATIENTS AND METHODS: F-FDG PET/CT and contrast-enhanced computed tomography (ceCT) examinations before tentative LT for NCLM were assessed, and findings contraindicating LT were registered...
April 20, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29683929/18f-fdg-pet-ct-in-the-evaluation-of-cancer-cervix-where-do-we-stand-today
#10
Shanmuga S Palaniswamy, Chaitanya R Borde, Padma Subramanyam
The incidence of gynecological malignancies is on the rise partly because of the availability of screening programmes, awareness, higher technological advancements, and availability of better medical care. Early diagnosis of any malignancy leads to prompt treatment. Use of 18Fluorine-Fluorodeoxyglucose (F-FDG) PET/CT in the treatment and follow-up of patients with Ca cervix considerably improves patient management. The primary diagnosis of Ca cervix is made either by biopsy of a visible tumor on the cervix or by a cone biopsy of a nonvisible malignant cervical focus...
April 20, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29683756/de-novo-expression-of-transfected-sirtuin-3-enhances-susceptibility-of-human-mcf-7-breast-cancer-cells-to-hyperoxia-treatment
#11
Marija Pinterić, Iva I Podgorski, Sandra Sobočanec, Marijana Popović Hadžija, Mladen Paradžik, Ana Dekanić, Maja Marinović, Mirna Halasz, Robert Belužić, Grazia Davidović, Andreja Ambriović Ristov, Tihomir Balog
Sirtuin 3 (Sirt3) has a promising role in cancer tumourigenesis and treatment, but there have been controversies about its role as oncogene or tumour suppressor in different types of cancer. Changes in its expression are associated with the excessive production of reactive oxygen species (ROS), thus contributing to mitochondrial dysfunction and age-related pathologies. Hyperoxic treatment (i.e. generator of ROS) was shown to support some tumourigenic properties, but finally suppresses growth of certain mammary carcinoma cells...
April 23, 2018: Free Radical Research
https://www.readbyqxmd.com/read/29683683/sequentially-responsive-therapeutic-peptide-assembling-nanoparticles-for-dual-targeted-cancer-immunotherapy
#12
Keman Cheng, Yanping Ding, Ying Zhao, Shefang Ye, Xiao Zhao, Yinlong Zhang, Tianjiao Ji, Huanhuan Wu, Bin Wang, Gregory J Anderson, Lei Ren, Guangjun Nie
Combination therapeutic regimen is becoming a primary direction for current cancer immunotherapy to broad the antitumor response. Functional nanomaterials offer great potential for steady co-delivery of various drugs, especially small molecules, therapeutic peptides, and nucleic acids, thereby realizing controllable drug release, increase of drug bioavailability and reduction of adverse effects. Herein, a therapeutic peptide assembling nanoparticle that can sequentially respond to dual stimuli in the tumor extracellular matrix was designed for tumor-targeted delivery and on-demand release of a short D-peptide antagonist of programmed cell death-ligand 1 (D PPA-1) and an inhibitor of idoleamine 2, 3-dioxygenase (NLG919)...
April 23, 2018: Nano Letters
https://www.readbyqxmd.com/read/29683489/regulation-of-cellular-senescence-via-the-foxo4-p53-axis
#13
REVIEW
Benjamin Bourgeois, Tobias Madl
Forkhead box O (FOXO) and p53 proteins are transcription factors that regulate diverse signalling pathways to control cell cycle, apoptosis and metabolism. In the last decade both FOXO and p53 have been identified as key players in aging, and their misregulation is linked to numerous diseases including cancers. However, many of the underlying molecular mechanisms remain mysterious, including regulation of ageing by FOXOs and p53. Several activities appear to be shared between FOXOs and p53, including their central role in the regulation of cellular senescence...
April 23, 2018: FEBS Letters
https://www.readbyqxmd.com/read/29683462/polysome-profiling-in-leishmania-human-cells-and-mouse-testis
#14
Zemfira N Karamysheva, Elena B Tikhonova, Petar N Grozdanov, James C Huffman, Kristen R Baca, Alexander Karamyshev, R Brian Denison, Clinton C MacDonald, Kai Zhang, Andrey L Karamyshev
Proper protein expression at the right time and in the right amounts is the basis of normal cell function and survival in a fast-changing environment. For a long time, the gene expression studies were dominated by research on the transcriptional level. However, the steady-state levels of mRNAs do not correlate well with protein production, and the translatability of mRNAs varies greatly depending on the conditions. In some organisms, like the parasite Leishmania, the protein expression is regulated mostly at the translational level...
April 8, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29683435/phospholipid-signaling-in-innate-immune-cells
#15
Valerie B O'Donnell, Jamie Rossjohn, Michael Jo Wakelam
Phospholipids comprise a large body of lipids that define cells and organelles by forming membrane structures. Importantly, their complex metabolism represents a highly controlled cellular signaling network that is essential for mounting an effective innate immune response. Phospholipids in innate cells are subject to dynamic regulation by enzymes, whose activities are highly responsive to activation status. Along with their metabolic products, they regulate multiple aspects of innate immune cell biology, including shape change, aggregation, blood clotting, and degranulation...
April 23, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29682501/vdac1-as-pharmacological-target-in-cancer-and-neurodegeneration-focus-on-its-role-in-apoptosis
#16
REVIEW
Andrea Magrì, Simona Reina, Vito De Pinto
Cancer and neurodegeneration are different classes of diseases that share the involvement of mitochondria in their pathogenesis. Whereas the high glycolytic rate (the so-called Warburg metabolism) and the suppression of apoptosis are key elements for the establishment and maintenance of cancer cells, mitochondrial dysfunction and increased cell death mark neurodegeneration. As a main actor in the regulation of cell metabolism and apoptosis, VDAC may represent the common point between these two broad families of pathologies...
2018: Frontiers in Chemistry
https://www.readbyqxmd.com/read/29682216/physical-training-interventions-for-children-and-teenagers-affected-by-acute-lymphoblastic-leukemia-and-related-treatment-impairments
#17
REVIEW
Carolina Simioni, Giorgio Zauli, Alberto M Martelli, Marco Vitale, Simona Ultimo, Daniela Milani, Luca M Neri
A decreased physical fitness has been reported in patients and survivors of acute lymphoblastic leukemia (ALL). This is influenced by the negative effects of the disease and by the treatments of childhood cancer. In the past, children were advised to recover in bed, and to take as much relax as possible. Nowadays, it is considered that too much immobility may result in a further decrease of physical fitness and functioning. Exercise training for ALL children has frequently been reported to improve physical fitness and the well-being of the children, since it prevents the negative effects of a sedentary life-style, such as obesity and a poor skeletal health...
March 30, 2018: Oncotarget
https://www.readbyqxmd.com/read/29682189/cisplatin-liposome-and-6-amino-nicotinamide-combination-to-overcome-drug-resistance-in-ovarian-cancer-cells
#18
Daniela Catanzaro, Silvia Nicolosi, Veronica Cocetta, Marika Salvalaio, Andrea Pagetta, Eugenio Ragazzi, Monica Montopoli, Gianfranco Pasut
Ovarian cancer is an aggressive and lethal cancer usually treated by cytoreductive surgery followed by chemotherapy. Unfortunately, after an initial response, many patients relapse owing mainly to the development of resistance against the standard chemotherapy regime, carboplatin/paclitaxel, which is also affected by heavy side effects. In view to addressing such issues here, an association of liposomal cisplatin with 6-amino nicotinamide is investigated. It is known that resistant cells increase their demand for glucose, which is partially redirected toward the pentose phosphate pathway (PPP)...
March 30, 2018: Oncotarget
https://www.readbyqxmd.com/read/29682162/metabolic-alterations-in-a-slow-paced-model-of-pancreatic-cancer-induced-wasting
#19
Elisabeth Wyart, Simone Reano, Myriam Y Hsu, Dario Livio Longo, Mingchuan Li, Emilio Hirsch, Nicoletta Filigheddu, Alessandra Ghigo, Chiara Riganti, Paolo Ettore Porporato
Cancer cachexia is a devastating syndrome occurring in the majority of terminally ill cancer patients. Notably, skeletal muscle atrophy is a consistent feature affecting the quality of life and prognosis. To date, limited therapeutic options are available, and research in the field is hampered by the lack of satisfactory models to study the complexity of wasting in cachexia-inducing tumors, such as pancreatic cancer. Moreover, currently used in vivo models are characterized by an explosive cachexia with a lethal wasting within few days, while pancreatic cancer patients might experience alterations long before the onset of overt wasting...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29682155/targeting-mitochondrial-bioenergetics-as-a-therapeutic-strategy-for-chronic-lymphocytic-leukemia
#20
REVIEW
Subir Roy Chowdhury, Versha Banerji
Altered cellular metabolism is considered a hallmark of cancer and is fast becoming an avenue for therapeutic intervention. Mitochondria have recently been viewed as an important cellular compartment that fuels the metabolic demands of cancer cells. Mitochondria are the major source of ATP and metabolites necessary to fulfill the bioenergetics and biosynthetic demands of cancer cells. Furthermore, mitochondria are central to cell death and the main source for generation of reactive oxygen species (ROS). Overall, the growing evidence now suggests that mitochondrial bioenergetics, biogenesis, ROS production, and adaptation to intrinsic oxidative stress are elevated in chronic lymphocytic leukemia (CLL)...
2018: Oxidative Medicine and Cellular Longevity
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