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https://www.readbyqxmd.com/read/28231576/molecular-markers-involved-in-tumorigenesis-of-thyroid-carcinoma-focus-on-aggressive-histotypes
#1
Gustavo C Penna, Fernanda Vaisman, Mario Vaisman, Manuel Sobrinho-Simões, Paula Soares
Thyroid cancer derived from follicular cells (TCDFC) comprises well-differentiated (papillary and follicular) carcinoma, poorly differentiated carcinoma, and anaplastic carcinoma. Papillary thyroid carcinoma is the most common endocrine cancer, and its incidence is steadily increasing. Lethality and aggressiveness of TCDFC is inversely correlated with differentiation degree. In this review, an emphasis has been put on molecular markers involved in tumorigenesis of thyroid carcinoma with a focus on aggressive histotypes and the role of such biomarkers in predicting thyroid cancer outcome...
February 24, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28231541/endogenous-microrna-424-predicts-clinical-outcome-and-its-inhibition-acts-as-cancer-suppressor-in-human-non-small-cell-lung-cancer
#2
Yu Wang, Zhenyang Lv, Junfeng Fu, Ze Wang, Zhe Fan, Ting Lei
PURPOSE: We examined the expression, clinical correlation and functional mechanisms of endogenous microRNA-424 (miR-424) in human non-small cell lung cancer (NSCLC). METHODS: Expression pattern of endogenous miR-424 was examined by qRT-PCR in clinical samples obtained from 233 NSCLC patients. Correlations between differential miR-424 expression level (low vs. high) and NSCLC patients' clinicopathological parameters or survival were statistically examined. In in vitro NSCLC H596 and SW900 cells, miR-424 was either upregulated or downregulation by lentiviral transduction...
February 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28231299/exploration-of-inhibitory-mechanisms-of-curcumin-in-lung-cancer-metastasis-using-a-mirna-transcription-factor-target-gene-network
#3
De-Min Jiao, Li Yan, Li-Shan Wang, Hui-Zhen Hu, Xia-Li Tang, Jun Chen, Jian Wang, You Li, Qing-Yong Chen
The present study was aimed to unravel the inhibitory mechanisms of curcumin for lung cancer metastasis via constructing a miRNA-transcription factor (TF)-target gene network. Differentially expressed miRNAs between human high-metastatic non-small cell lung cancer 95D cells treated with and without curcumin were identified using a TaqMan human miRNA array followed by real-time PCR, out of which, the top 6 miRNAs (miR-302b-3p, miR-335-5p, miR-338-3p, miR-34c-5p, miR-29c-3p and miR-34a-35p) with more verified target genes and TFs than other miRNAs as confirmed by a literature review were selected for further analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28231262/oleanolic-acid-induces-migration-in-mv1lu-and-mda-mb-231-epithelial-cells-involving-egf-receptor-and-map-kinases-activation
#4
Ángel Bernabé-García, David Armero-Barranco, Sergio Liarte, María Ruzafa-Martínez, Antonio Jesús Ramos-Morcillo, Francisco José Nicolás
During wound healing, skin function is restored by the action of several cell types that undergo differentiation, migration, proliferation and/or apoptosis. These dynamics are tightly regulated by the evolution of the extra cellular matrix (ECM) contents along the process. Pharmacologically active flavonoids have shown to exhibit useful physiological properties interesting in pathological states. Among them, oleanolic acid (OA), a pentacyclic triterpene, shows promising properties over wound healing, as increased cell migration in vitro and improved wound resolution in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28231007/molecular-dynamics-recrystallization-behavior-and-water-solubility-of-amorphous-anticancer-agent-bicalutamide-and-its-polyvinylpyrrolidone-mixtures
#5
Justyna Szczurek, Marzena Rams-Baron, Justyna Knapik-Kowalczuk, Agata Antosik, Joanna Szafraniec, Witold Jamroz, Mateusz Dulski, Renata Jachowicz, Marian Paluch
In this paper, we investigated the molecular mobility and physical stability of amorphous bicalutamide, a poorly water-soluble drug widely used in prostate cancer treatment. Our broadband dielectric spectroscopy measurements and differential scanning calorimetry studies revealed that amorphous BIC is a moderately fragile material with strong tendency to recrystallize from amorphous state. However, mixing the drug with polymer polyvinylpyrrolidone results in a substantial improvement of physical stability attributed to antiplasticizing effect governing by polymer additive...
February 23, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28230165/mtdna-meta-analysis-reveals-both-phenotype-specificity-and-allele-heterogeneity-a-model-for-differential-association
#6
Shani Marom, Michael Friger, Dan Mishmar
Human mtDNA genetic variants have traditionally been considered markers for ancient population migrations. However, during the past three decades, these variants have been associated with altered susceptibility to various phenotypes, thus supporting their importance for human health. Nevertheless, mtDNA disease association has frequently been supported only in certain populations, due either to population stratification or differential epistatic compensations among populations. To partially overcome these obstacles, we performed meta-analysis of the multiple mtDNA association studies conducted until 2016, encompassing 53,975 patients and 63,323 controls...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230094/hierarchical-tissue-organization-as-a-general-mechanism-to-limit-the-accumulation-of-somatic-mutations
#7
Imre Derényi, Gergely J Szöllősi
How can tissues generate large numbers of cells, yet keep the divisional load (the number of divisions along cell lineages) low in order to curtail the accumulation of somatic mutations and reduce the risk of cancer? To answer the question we consider a general model of hierarchically organized self-renewing tissues and show that the lifetime divisional load of such a tissue is independent of the details of the cell differentiation processes, and depends only on two structural and two dynamical parameters. Our results demonstrate that a strict analytical relationship exists between two seemingly disparate characteristics of self-renewing tissues: divisional load and tissue organization...
February 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28230040/ezrin-expression-in-the-primary-hepatocellular-carcinoma-patients-and-associated-with-clinical-pathological-characteristics
#8
Debiao Pan, Shi Wang, Hailin Ye, Shengqian Xu, Guanxiong Ye
OBJECTIVE: The aim of this study was to assess Ezrin expression in the primary hepatic carcinoma patients and associated with clinical, pathological characteristics. MATERIALS AND METHODS: Fifty-one patients with primary hepatocellular carcinoma (PHC) with completed clinical data were retrospectively analyzed in this study. The Ezrin expression in PHC and normal control liver tissue was tested by immunohistochemical assay. The Ezrin expression and relationship with clinical characteristics were evaluated...
December 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28229962/overexpression-of-hsa-mir-939-follows-by-ngfr-down-regulation-and-apoptosis-reduction
#9
Fahimeh Hosseini Aghdaei, Bahram M Soltani, Sadat Dokanehiifard, Seyed Javad Mowla, Masoud Soleimani
Neurotrophin receptors play a crucial role in neuronal survival, differentiation and regeneration. Nerve growth factor receptor (NGFR) or P75(NTR) is a neurotrophin receptor that is involved in many pathological conditions including cancers. Genetic factors that are involved in regulation of neurotrophin receptors are under intense investigation. MiRNAs are novel regulators of signalling pathways that are candidates for regulation of neurotrophin receptors. Computational programs predicted that NGFR gene is a bona fide target for hsa-miR- 939...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28229932/csn5-jab1-suppresses-the-wnt-inhibitor-dkk1-in-colorectal-cancer-cells
#10
Sandra Jumpertz, Thomas Hennes, Yaw Asare, Anke K Schütz, Jürgen Bernhagen
The COP9 signalosome (CSN) is a multi-protein complex that is highly conserved in eukaryotes. Due to its regulatory impact on processes such as cell cycle, DNA damage response and apoptosis, the CSN is essential for mammalian cells. One of the best-studied functions of the CSN is the deNEDDylation of cullin-RING ligases (CRLs) via its catalytically active subunit CSN5/JAB1, thereby triggering the degradation of various target proteins. CSN5 was found to be overexpressed in many human cancer entities, including colon adenocarcinoma...
February 13, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28229217/foxo3-estrogen-receptor-alpha-and-androgen-receptor-impact-tumor-growth-rate-and-infiltration-of-dendritic-cell-subsets-differentially-between-male-and-female-mice
#11
Matthew G Thompson, Daniel S Peiffer, Michelle Larson, Flor Navarro, Stephanie K Watkins
Tumors evade immune recognition and destruction in many ways including the creation of an immune-suppressive tumor microenvironment (TME). Dendritic cells (DC) that infiltrate the TME are tolerogenic, and suppress effector T cells and anti-tumor activity. Previous reports demonstrated that a key regulator of tolerance in DC is the transcription factor FOXO3. Gender disparity has been studied in cancer in relation to incidence, aggressiveness, and prognosis. Few studies have touched on the importance in relation to impact on the immune system...
February 22, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28229187/-precursors-of-gastric-cancer-dysplasia-and-adenoma
#12
C Langner
Gastric cancer develops from preneoplastic and early neoplastic precursor lesions. In particular, the intestinal type according to the Lauren classification is driven by chronic inflammation and progresses via a chronic gastritis - atrophy/metaplasia - dysplasia - carcinoma sequence. Staging of the extent of atrophy (OLGA) or intestinal metaplasia (OLGIM) enables risk stratification and determines follow-up investigations according to the management of precancerous conditions and lesions in the stomach (MAPS) international guidelines...
February 22, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28228868/primary-neuroendocrine-carcinoma-of-the-breast-report-of-2-cases-and-literature-review
#13
Fernando Collado-Mesa, Jose M Net, Geetika A Klevos, Monica M Yepes
Neuroendocrine tumors of the breast are very rare accounting for less than 0.1% of all breast cancers and less than 1% of all neuroendocrine tumors. Focal neuroendocrine differentiation can be found in different histologic types of breast carcinoma including in situ and invasive ductal or invasive lobular. However, primary neuroendocrine carcinoma of the breast requires the expression of neuroendocrine markers in more than 50% of the cell population, the presence of ductal carcinoma in situ, and the absence of clinical evidence of concurrent primary neuroendocrine carcinoma of any other organ...
March 2017: Radiology case reports
https://www.readbyqxmd.com/read/28228223/-clinical-experience-with-first-generation-epidermal-growth-factor-receptor-%C3%A2-tyrosine-kinase-inhibitors-in-non-small-cell-lung-cancer-patients-%C3%A2-with-brain-metastasis
#14
Huixing Dong, Shaohua Cui, Feng Pan, Lili Dong, Yanjie Niu, Yizhuo Zhao, Aiqin Gu, Xiaoyan Jin, Liyan Jiang
BACKGROUND: A survival analysis and the influencing factors for non-small cell lung cancer (NSCLC) patients with brain metastases accepting first-generation epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKIs) treatment have not yet been elucidated to date. In this study, we collected and analyzed the survival data of NSCLC patients with brain metastasis to obtain evidence and to provide guidance in clinical practice. METHODS: NSCLC patients with brain metastases who were treated with first-generation EGFR-TKIs were retrospectively collected in 2012-2013 from Shanghai Chest Hospital, Shanghai Jiao Tong University...
February 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28228184/a-novel-approach-for-pathway-analysis-of-gwas-data-highlights-role-of-bmp-signaling-and-muscle-cell-differentiation-in-colorectal-cancer-susceptibility-erratum
#15
Aniket Mishra, Stuart MacGregor
The publishers regret to announce that the affiliation for the above paper was incorrectly inserted. The correct affiliation is below: Aniket Mishra1, Genetics and Epidemiology of Colorectal Cancer Consortium (GECCO) and the Colorectal Cancer Family Registry (CCFR), and Stuart MacGregor1 1 Statistical Genetics, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.
February 23, 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28228161/catching-moving-targets-cancer-stem-cell-hierarchies-therapy-resistance-considerations-for-clinical-intervention
#16
REVIEW
Claudia Gasch, Brendan Ffrench, John J O'Leary, Michael F Gallagher
It is widely believed that targeting the tumour-initiating cancer stem cell (CSC) component of malignancy has great therapeutic potential, particularly in therapy-resistant disease. However, despite concerted efforts, CSC-targeting strategies have not been efficiently translated to the clinic. This is partly due to our incomplete understanding of the mechanisms underlying CSC therapy-resistance. In particular, the relationship between therapy-resistance and the organisation of CSCs as Stem-Progenitor-Differentiated cell hierarchies has not been widely studied...
February 23, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28228152/cardiac-metastasis-from-colon-cancer-effectively-treated-with-5-fluorouracil-leucovorin-and-oxaliplatin-modified-folfox6-plus-panitumumab-a-case-report
#17
Yoshiki Tsujii, Yoshito Hayashi, Akira Maekawa, Tetsuji Fujinaga, Kengo Nagai, Shunsuke Yoshii, Akihiko Sakatani, Satoshi Hiyama, Shinichiro Shinzaki, Hideki Iijima, Tetsuo Takehara
BACKGROUND: Cardiac metastasis from colorectal cancer is rare. There is little evidence supporting the effectiveness of chemotherapy, and standard therapy for metastatic cardiac tumors has not been established. CASE PRESENTATION: A 76-year-old woman presented with a right ventricle tumor that was detected incidentally on screening cardiac ultrasonography. The initial computed tomography (CT) scan showed the cardiac tumor, which was approximately 40 mm in size, and multiple pulmonary nodules...
February 23, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28227910/development-of-a-three-dimensional-lattice-free-multiscale-model-of-the-mammary-terminal-end-bud
#18
Joseph D Butner, Vittorio Cristini, Zhihui Wang, Joseph D Butner, Vittorio Cristini, Zhihui Wang, Vittorio Cristini, Joseph D Butner, Zhihui Wang
The terminal end bud (TEB) is a bulbous structure composed of highly proliferative cells that is responsible for mammary gland development during the pubertal stage. This is a highly organized process, involving cellular differentiation hierarchies regulated by endocrine and paracrine signaling. Here, we present development of a lattice-free, three dimensional multiscale agent based model of the TEB to study the effects of cellular phenotypic hierarchies, endocrine and paracrine signaling, and proliferation demographics on pubertal mammary gland development...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227670/diffuse-reflectance-spectroscopy-can-differentiate-high-grade-and-low-grade-prostatic-carcinoma
#19
Priya N Werahera, Edward A Jasion, E David Crawford, M Scott Lucia, Adrie van Bokhoven, Holly T Sullivan, Fernando J Kim, Paul D Maroni, J David Port, John W Daily, Francisco G La Rosa, Priya N Werahera, Edward A Jasion, E David Crawford, M Scott Lucia, Adrie van Bokhoven, Holly T Sullivan, Fernando J Kim, Paul D Maroni, J David Port, John W Daily, Francisco G La Rosa, John W Daily, Adrie Van Bokhoven, E David Crawford, J David Port, Priya N Werahera, M Scott Lucia, Holly T Sullivan, Paul D Maroni, Edward A Jasion, Francisco G La Rosa, Fernando J Kim
Prostate tumors are graded by the revised Gleason Score (GS) which is the sum of the two predominant Gleason grades present ranging from 6-10. GS 6 cancer exclusively with Gleason grade 3 is designated as low grade (LG) and correlates with better clinical prognosis for patients. GS >7 cancer with at least one of the Gleason grades 4 and 5 is designated as HG indicate worse prognosis for patients. Current transrectal ultrasound guided prostate biopsies often fail to correctly diagnose HG prostate cancer due to sampling errors...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227013/pan-cancer-analysis-for-studying-cancer-stage-using-protein-and-gene-expression-data
#20
Sameer Mishra, Chanchala D Kaddi, May D Wang, Sameer Mishra, Chanchala D Kaddi, May D Wang, Sameer Mishra, Chanchala D Kaddi, May D Wang
Pan-cancer analyses attempt to discover similar features among multiple cancers to identify fundamental patterns common to cancer development and progression. A pan-cancer analysis integrating both protein expression and transcriptomic data is important because it can identify genes that are linked to proteins potentially responsible for a patient's status. This study aims to identify differentially expressed (DE) genes between early and advanced cases of multiple cancer types through the usage of RNA sequencing data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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