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Calcium cancer

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https://www.readbyqxmd.com/read/29791500/retraction-calcium-channel-blockers-and-risk-of-breast-cancer-a-meta-analysis-of-17-observational-studies
#1
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No abstract text is available yet for this article.
2018: PloS One
https://www.readbyqxmd.com/read/29790728/hydroxylated-polybrominated-biphenyl-ethers-exert-estrogenic-effects-via-non-genomic-g-protein-coupled-estrogen-receptor-mediated-pathways
#2
Lin-Ying Cao, Xiao-Min Ren, Yu Yang, Bin Wan, Liang-Hong Guo, De Chen, Yong Fan
BACKGROUND: Numerous studies have indicated the estrogenic effects of polybrominated diphenyl ethers (PBDEs) and hydroxylated PBDEs (OH-PBDEs). However, the previous mechanistic studies focused on their estrogenic effects through genomic transcriptional activation of estrogen receptors. OBJECTIVE: The present study aimed to investigate the estrogenic effects of PBDEs and OH-PBDEs via nongenomic G protein-coupled estrogen receptor (GPER) pathways. METHODS: The binding affinities of 12 PBDEs and 18 OH-PBDEs with GPER were determined by a fluorescence competitive binding assay in a human breast cancer cell line (SKBR3)...
May 2018: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29789326/hepatocellular-carcinoma-outcome-is-predicted-by-expression-of-neuronal-calcium-sensor-1
#3
Daniel Schuette, Lauren M Moore, Marie E Robert, Tamar H Taddei, Barbara E Ehrlich
BACKGROUND: Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related death worldwide. There is an urgent demand for prognostic biomarkers that facilitate early tumor detection, as the incidence of HCC has tripled in the USA in the last three decades. Biomarkers to identify populations at risk would have significant impact on survival. We recently found that expression of Neuronal Calcium Sensor 1 (NCS1), a Ca2+-dependent signaling molecule, predicted disease outcome in breast cancer, but its predictive value in other cancer types is unknown...
May 22, 2018: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/29786742/a-novel-alendronate-functionalized-nanoprobe-for-simple-colorimetric-detection-of-cancer-associated-hypercalcemia
#4
Abhishek Sahu, Youngmin Hwang, Cristian Vilos, Jong-Min Lim, Sunghyun Kim, Won Il Choi, Giyoong Tae
The calcium (Ca2+) ion concentration in the blood serum is tightly regulated, and any abnormalities in the level of serum calcium ions are associated with many potentially dangerous diseases. Thus, monitoring of the Ca2+ ion concentration in the blood serum is of fundamental importance. Gold nanoparticle (GNP)-based colorimetric biosensors have enormous potential in clinical diagnostic applications due to their simplicity, versatility, and unique optical properties. In this study, we have developed an alendronate functionalized gold nanoparticle (GNP-ALD) system for the measurement of Ca2+ ion concentration in biological samples...
May 22, 2018: Nanoscale
https://www.readbyqxmd.com/read/29783070/cdh17-alters-mmp-2-expression-via-canonical-nf-%C3%AE%C2%BAb-signalling-in-human-gastric-cancer
#5
Xiao-Jie Jiang, Jing Lin, Qing-He Cai, Jian-Feng Zhao, Hui-Jiao Zhang
Gastric cancer (GC), one of the most common cancers of the digestive system, results in high morbidity and mortality, but the molecular mechanisms underlying GC remain largely unknown. Cadherin-17 (CDH17) is a nonclassical member of the cadherin (CDH) superfamily of calcium-dependent proteins. Despite recent advances in the understanding of CDH17 biology, the mechanism of CDH17 in GC proliferation, migration, and invasion has not been extensively studied. In the present study, we observed that CDH17 expression was increased in GC tissues compared with para-carcinoma tissues and was correlated with lymph node metastasis and the AJCC stage...
May 18, 2018: Gene
https://www.readbyqxmd.com/read/29780159/modulation-of-store-operated-calcium-entry-and-nascent-adhesion-by-p21-activated-kinase-1
#6
In-Sook Jeon, Hye-Ryun Kim, Eun-Young Shin, Eung-Gook Kim, Heon-Seok Han, Jin-Tae Hong, Hak-Kyo Lee, Ki-Duk Song, Joong-Kook Choi
Calcium mobilization is necessary for cell movement during embryonic development, lymphocyte synapse formation, wound healing, and cancer cell metastasis. Depletion of calcium in the lumen of the endoplasmic reticulum using inositol triphosphate (IP3) or thapsigargin (TG) is known to induce oligomerization and cytoskeleton-mediated translocation of stromal interaction molecule 1 (STIM1) to the plasma membrane, where it interacts with the calcium release-activated calcium channel Orai1 to mediate calcium influx; this process is referred to as store-operated calcium entry (SOCE)...
May 21, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29777637/thymol-inhibits-oral-squamous-cell-carcinoma-growth-via-mitochondria-mediated-apoptosis
#7
Jorge J De La Chapa, Prajjal Kanti Singha, Debbie R Lee, Cara B Gonzales
BACKGROUND: Thymol is a Transient Receptor Potential Ankyrin Subtype 1 channel, (TRPA1) agonist found in thyme and oregano. Thymol has antioxidant, anti-inflammatory, and antimicrobial properties; thus thymol is added to many commercially available products including Listerine mouthwash. Thymol is also cytotoxic to HL-60 (acute promyelotic leukemia) cells in vitro. Therefore, we evaluated the effects of thymol against oral squamous cell carcinoma (OSCC) and its anticancer mechanism-of-action...
May 19, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29774408/possible-association-of-cag-repeat-polymorphism-in-kcnn3-encoding-the-potassium-channel-sk3-with-oxaliplatin-induced-neurotoxicity
#8
Benjamin Anon, Bérenger Largeau, Alban Girault, Aurélie Chantome, Morgane Caulet, Clémence Perray, Driffa Moussata, Christophe Vandier, Chantal Barin-Le Guellec, Thierry Lecomte
INTRODUCTION: Data suggest a role of the potassium channel SK3 (KCNN3 gene) in oxaliplatin-induced neurotoxicity (OIN). Length variations in the polymorphic CAG repeat of the KCNN3 gene may be associated with the risk of OIN. MATERIALS AND METHODS: We performed patch-clamp experiments on HEK293 cell lines, expressing SK3 channel isoforms with short (11) or long (24) CAG repetitions, to measure intracellular calcium concentrations to test the effects of oxaliplatin on current density...
May 17, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29767698/mechanisms-by-which-dietary-fatty-acids-regulate-mitochondrial-structure-function-in-health-and-disease
#9
E Madison Sullivan, Edward Ross Pennington, William D Green, Melinda A Beck, David A Brown, Saame Raza Shaikh
Mitochondria are the energy-producing organelles within a cell. Furthermore, mitochondria have a role in maintaining cellular homeostasis and proper calcium concentrations, building critical components of hormones and other signaling molecules, and controlling apoptosis. Structurally, mitochondria are unique because they have 2 membranes that allow for compartmentalization. The composition and molecular organization of these membranes are crucial to the maintenance and function of mitochondria. In this review, we first present a general overview of mitochondrial membrane biochemistry and biophysics followed by the role of different dietary saturated and unsaturated fatty acids in modulating mitochondrial membrane structure-function...
May 1, 2018: Advances in Nutrition
https://www.readbyqxmd.com/read/29765562/a-myriad-of-roles-of-mir-25-in-health-and-disease
#10
REVIEW
Márta Sárközy, Zsuzsanna Kahán, Tamás Csont
Small non-coding RNAs including microRNAs (miRNAs) have been recently recognized as important regulators of gene expression. MicroRNAs play myriads of roles in physiological processes as well as in the pathogenesis of a number of diseases by translational repression or mRNA destabilization of numerous target genes. The miR-106b-25 cluster is highly conserved in vertebrates and consists of three members including miR-106b, miR-93 and miR-25. MiR-106b and miR-93 share the same seed sequences; however, miR-25 has only a similar seed sequence resulting in different predicted target mRNAs...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29765509/resveratrol-induced-downregulation-of-naf-1-enhances-the-sensitivity-of-pancreatic-cancer-cells-to-gemcitabine-via-the-ros-nrf2-signaling-pathways
#11
Liang Cheng, Bin Yan, Ke Chen, Zhengdong Jiang, Cancan Zhou, Junyu Cao, Weikun Qian, Jie Li, Liankang Sun, Jiguang Ma, Qingyong Ma, Huanchen Sha
NAF-1 (nutrient-deprivation autophagy factor-1), which is an outer mitochondrial membrane protein, is known to play important roles in calcium metabolism, antiapoptosis, and antiautophagy. Resveratrol, a natural polyphenolic compound, is considered as a potent anticancer agent. Nevertheless, the molecular mechanisms underlying the effects of resveratrol and NAF-1 and their mediation of drug resistance in pancreatic cancer remain unclear. Here, we demonstrate that resveratrol suppresses the expression of NAF-1 in pancreatic cancer cells by inducing cellular reactive oxygen species (ROS) accumulation and activating Nrf2 signaling...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29765146/do-dietary-calcium-and-vitamin-d-matter-in-men-with-prostate-cancer
#12
REVIEW
Thierry Capiod, Nicolas Barry Delongchamps, Natascha Pigat, Jean-Claude Souberbielle, Vincent Goffin
Active surveillance (AS) is an attractive alternative to immediate treatment for men with low-risk prostate cancer. Thus, the identification of environmental factors that promote the progression of indolent disease towards aggressive stages is critical to optimize clinical management. Epidemiological studies suggest that calcium-rich diets contribute to an increased risk of developing prostate cancer and that vitamin D reduces this risk. However, the potential effect of these nutrients on the progression of early-stage prostate tumours is uncertain, as studies in this setting are scarce and have not provided unambiguous conclusions...
May 15, 2018: Nature Reviews. Urology
https://www.readbyqxmd.com/read/29763272/colorectal-cancer-screening-and-prevention
#13
Thad Wilkins, Danielle McMechan, Asif Talukder
Colorectal cancer is a common cause of morbidity and mortality in the United States. Most colorectal cancers arise from preexisting adenomatous or serrated polyps. The incidence and mortality of colorectal cancer can be reduced with screening of average-risk adults 50 to 75 years of age. Randomized controlled trials show evidence of reduced colorectal cancer-specific mortality with guaiac-based fecal occult blood tests and flexible sigmoidoscopy. There are no randomized controlled trials on the effectiveness of colonoscopy to reduce colorectal cancer-specific mortality; however, several randomized controlled trials comparing colonoscopy with other strategies are in progress...
May 15, 2018: American Family Physician
https://www.readbyqxmd.com/read/29759553/the-role-of-heme-iron-molecules-derived-from-red-and-processed-meat-in-the-pathogenesis-of-colorectal-carcinoma
#14
REVIEW
S M K Gamage, Lakal Dissabandara, Alfred King-Yin Lam, Vinod Gopalan
Emerging evidence that heme iron in red meat is a risk factor for colorectal carcinogenesis is a topic that has received recent scrutiny. This review aims to summarise the mechanism of colorectal carcinogenesis by heme contained in red and processed meat. Heme iron can induce cytotoxicity by 'cytotoxic heme factor' and promote surface epithelial cell apoptosis and compensatory epithelial hyperplasia. Heme, induces peroxidation of lipids, leading to free radical formation and generation of DNA adducts in colorectal epithelial cells...
June 2018: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/29757220/annexins-coordinators-of-cholesterol-homeostasis-in-endocytic-pathways
#15
REVIEW
Carles Rentero, Patricia Blanco-Muñoz, Elsa Meneses-Salas, Thomas Grewal, Carlos Enrich
The spatiotemporal regulation of calcium (Ca2+ ) storage in late endosomes (LE) and lysosomes (Lys) is increasingly recognized to influence a variety of membrane trafficking events, including endocytosis, exocytosis, and autophagy. Alterations in Ca2+ homeostasis within the LE/Lys compartment are implicated in human diseases, ranging from lysosomal storage diseases (LSDs) to neurodegeneration and cancer, and they correlate with changes in the membrane binding behaviour of Ca2+ -binding proteins. This also includes Annexins (AnxA), which is a family of Ca2+ -binding proteins participating in membrane traffic and tethering, microdomain organization, cytoskeleton interactions, Ca2+ signalling, and LE/Lys positioning...
May 12, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29756256/peptidylarginine-deiminases-and-deiminated-proteins-at-the-epidermal-barrier
#16
REVIEW
Laura Cau, Marie-Claire Méchin, Michel Simon
Deimination or citrullination is a posttranslational modification catalysed by a family of calcium-dependent enzymes called peptidylarginine deiminases (PADs). It corresponds to the transformation of arginine residues within a peptide sequence into citrulline residues. Deimination induces a decreased net charge of targeted proteins; therefore it alters their folding and changes intra and intermolecular ionic interactions. Deimination is involved in several physiological processes (inflammation, gene regulation, etc...
May 13, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/29755856/the-guiding-role-of-bone-metabolism-test-in-osteoporosis-treatment
#17
REVIEW
Wei Zhang, Guo-Ji Yang, Shi-Xian Wu, Dong-Qing Li, Ying-Bo Xu, Cheng-Hong Ma, Jun-Ling Wang, Wei-Wen Chen
Osteoporosis (OP) and osteoporotic fractures are becoming a serious health care issue in the world. Calcium and vitamin D are the basic treatment for osteoporosis. Nonetheless, they do not effectively reduce the incidences of fracture. Currently approved treatments for osteoporosis include selective estrogen receptor modulators (SERMs), bisphosphonates, denosumab, teriparatide, calcitonin and others. However, the appearance of some adverse effects including atypical fracture and breast cancer has limited long-term treatments above mentioned...
2018: American Journal of Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29755405/dual-paraneoplastic-endocrine-syndromes-heralding-onset-of-extrapulmonary-small-cell-carcinoma-a-case-report-and-narrative-review
#18
Jill B Feffer, Natalia M Branis, Jeanine B Albu
Objective: Extrapulmonary small cell carcinoma (EPSCC) is rare and frequent metastases at presentation can complicate efforts to identify a site of origin. In particular, SCC comprises <1% of prostate cancers and has been implicated in castration resistance. Methods: Clinical, laboratory, imaging, and pathology data are presented. Results: A 56-year-old man with locally advanced prostate adenocarcinoma on androgen deprivation therapy presented with a clogged nephrostomy tube...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29752690/spatio-temporal-dynamics-of-calcium-electrotransfer-during-cell-membrane-permeabilization
#19
Alexis Guionet, S Moosavi Nejad, Justin Teissié, Takashi Sakugawa, Sunao Katsuki, Hidenori Akiyama, Hamid Hosseini
Pulsed electric fields (PEFs) are applied as physical stimuli for DNA/drug delivery, cancer therapy, gene transformation, and microorganism eradication. Meanwhile, calcium electrotransfer offers an interesting approach to treat cancer, as it induces cell death easier in malignant cells than in normal cells. Here, we study the spatial and temporal cellular responses to 10 μs duration PEFs; by observing real-time, the uptake of extracellular calcium through the cell membrane. The experimental setup consisted of an inverted fluorescence microscope equipped with a color high-speed framing camera and a specifically designed miniaturized pulsed power system...
May 11, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/29752156/spectral-ct-imaging-of-lung-cancer-quantitative-analysis-of-spectral-parameters-and-their-correlation-with-tumor-characteristics
#20
Feng Wu, Hang Zhou, Feng Li, Jiang-Tao Wang, Tao Ai
RATIONALE AND OBJECTIVES: Spectral computed tomography (CT) imaging is widely used in the diagnosis of various cancers. This study aimed to analyze the characteristics of lung squamous cell carcinoma (SC) and adenocarcinoma (AC) using spectral CT imaging. METHODS: Sixty patients who were examined via spectral CT imaging and confirmed as having AC or SC via surgery and pathology were enrolled in this research project. A spectrum CT scanner was used, and both plain and enhanced CT scans were conducted to acquire spectral images...
May 8, 2018: Academic Radiology
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