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https://www.readbyqxmd.com/read/28636993/polymorphisms-and-expression-pattern-of-circular-rna-circ-itch-contributes-to-the-carcinogenesis-of-hepatocellular-carcinoma
#1
Wenzhi Guo, Jiakai Zhang, Dongyu Zhang, Shengli Cao, Gongquan Li, Shuijun Zhang, Zhihui Wang, Peihao Wen, Han Yang, Xiaoyi Shi, Jie Pan, Hua Ye
Hepatocellular carcinoma (HCC) ranks the sixth most common cancer and the third cause of cancer-related mortality worldwide. Recent studies identified that circ-ITCH Suppresses mutiple cancers proliferation via inhibiting the Wnt/beta-Catenin pathway. In current study, conducted a genetic association study together with epidemiological follow-up study to delineate the role of circ-ITCH in the development and progression of HCC. we found rs10485505 (adjusted OR =1.18; 95% CI=1.06-1.31; P value =3.1×10-3) and rs4911154 (adjusted OR =1...
June 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28631711/-expansion-of-secretory-cells-in-the-fallopian-tubal-epithelium-in-the-early-stages-of-the-pathogenesis-of-ovarian-serous-carcinomas
#2
A V Asaturova, L S Ezhova, N M Faizullina, L V Adamyan, G N Khabas, M V Sannikova
AIM: to investigate the frequency of the types of fallopian tubal secretory cell expansion (SCE) in diseases of the reproductive organs and to determine the immunophenotype and biological role of the cells in the early stages of the pathogenesis of high-grade ovarian serous carcinomas (HGOSC). SUBJECTS AND METHODS: The investigation enrolled 287 patients with extraovarian diseases and ovarian serous tumors varying in grade, whose fallopian tubes were morphologically and immunohistochemically examined using p53, Ki-67, PAX2, Bcl-2, beta-catenin, and ALDH1 markers...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28624572/role-of-beta-catenin-and-endocannabinoids-in-the-nucleus-accumbens-in-extinction-in-rats-exposed-to-shock-and-reminders
#3
Nachshon Korem, Rachel Lange, Cecilia J Hillard, Irit Akirav
The response to a traumatic experience may be rapid recovery or development of psychopathology such as post-traumatic stress disorder (PTSD). Impaired extinction of fear memories is thought to contribute to the development of the persistent trauma memories and avoidance. The Wnt/β-catenin pathway and the endocannabinoid system appear to play significant roles in anxiety and depressive symptoms. Here we examined the involvement of β-catenin in the nucleus accumbens (NAc) in extinction in rats exposed to the shock and reminders model of PTSD...
June 15, 2017: Neuroscience
https://www.readbyqxmd.com/read/28620312/thermodynamics-in-gliomas-interactions-between-the-canonical-wnt-beta-catenin-pathway-and-ppar-gamma
#4
REVIEW
Alexandre Vallée, Yves Lecarpentier, Rémy Guillevin, Jean-Noël Vallée
Gliomas cells are the site of numerous metabolic and thermodynamics abnormalities with an increasing entropy rate which is characteristic of irreversible processes driven by changes in Gibbs energy, heat production, intracellular acidity, membrane potential gradient, and ionic conductance. We focus our review on the opposing interactions observed in glioma between the canonical WNT/beta-catenin pathway and PPAR gamma and their metabolic and thermodynamic implications. In gliomas, WNT/beta-catenin pathway is upregulated while PPAR gamma is downregulated...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28618047/focal-b-catenin-mutation-identified-on-formalin-fixed-and-paraffin-embedded-inflammatory-hepatocellular-adenomas
#5
Joan Saldarriaga, Bettina Bisig, Gabrielle Couchy, Claire Castain, Jessica Zucman-Rossi, Charles Balabaud, Christine Sempoux, Paulette Bioulac-Sage
The identification of hepatocellular adenoma (HCA) with mutation in exon 3 of the CTNNB1 gene encoding for b-catenin is clinically relevant due to higher risk of malignant transformation. Inflammatory HCA (IHCA) can exhibit b-catenin activation (b-IHCA). We report 2 cases with multiple IHCA in which focal b-catenin activation has been found in one of the IHCA. In both cases, the diagnosis of IHCA was confirmed on the resected nodules by routine stains, immunohistochemical detection of C-reactive protein (CRP), and molecular biology on frozen material...
June 15, 2017: Histopathology
https://www.readbyqxmd.com/read/28614212/phosphaturic-mesenchymal-tumors-clinicopathologic-immunohistochemical-and-molecular-analysis-of-22-cases-expanding-their-morphologic-and-immunophenotypic-spectrum
#6
Abbas Agaimy, Michael Michal, Simion Chiosea, Fredrik Petersson, Ladislav Hadravsky, Glenn Kristiansen, Raymund E Horch, Jan Schmolders, Arndt Hartmann, Florian Haller, Michal Michal
Phosphaturic mesenchymal tumor (PMT) is a rare neoplasm of uncertain histogenesis that has been linked to tumor-induced osteomalacia (TIO) since 1959. The neoplastic cells produce increased amount of FGF23 which results in TIO via uncontrolled renal loss of phosphate (phosphaturia), and consequently diminished bone mineralization. To date, ∼300 cases have been reported. Although there is increasing evidence that PMT can be diagnosed by reproducible histopathologic features, firm diagnosis has been often restricted to cases associated with TIO and, hence, diagnosis of "nonphosphaturic variants" remained challenging...
June 13, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28606512/heme-oxygenase-1-mediates-anti-adipogenesis-effect-of-raspberry-ketone-in-3t3-l1-cells
#7
Yung-Chieh Tsai, Bo-Cheng Yang, Wen-Huang Peng, Yen-Mei Lee, Mao-Hsiung Yen, Pao-Yun Cheng
BACKGROUND: Obesity is caused by excessive accumulation of body fat and is closely related to complex metabolic diseases. Raspberry ketone (RK), a major aromatic compound in red raspberry, was recently reported to possess anti-obesity effects. However, its mechanisms are unclear. AIM: Adipogenesis plays a critical role in obesity and, therefore, this study aimed to investigate the effect and mechanisms of action of RK on adipogenesis in 3T3-L1 preadipocytes. MATERIALS AND METHODS: 3T3-L1 preadipocytes were differentiated in medium containing insulin, dexamethasone, and 1-methyl-3-isobutylxanthine...
July 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28594935/a-nested-case-control-study-of-277-prediagnostic-serum-cytokines-and-glioma
#8
Judith Schwartzbaum, Min Wang, Elisabeth Root, Maciej Pietrzak, Grzegorz A Rempala, Ruo-Pan Huang, Tom Borge Johannesen, Tom K Grimsrud
Recent research shows bidirectional communication between the normal brain and the peripheral immune system. Glioma is a primary brain tumor characterized by systemic immunosuppression. To better understand gliomagenesis, we evaluated associations between 277 prediagnostic serum cytokines and glioma. We used glioma (n = 487) and matched control (n = 487) specimens from the Janus Serum Bank Cohort in Oslo, Norway. Conditional logistic regression allowed us to identify those cytokines that were individually associated with glioma...
2017: PloS One
https://www.readbyqxmd.com/read/28588757/identification-of-neuron-selective-androgen-receptor-inhibitors
#9
Maya Otto-Duessel, Ben Yi Tew, Steven Vonderfecht, Roger Moore, Jeremy O Jones
AIM: To identify neuron-selective androgen receptor (AR) signaling inhibitors, which could be useful in the treatment of spinal and bulbar muscular atrophy (SBMA), or Kennedy's disease, a neuromuscular disorder in which deterioration of motor neurons leads to progressive muscle weakness. METHODS: Cell lines representing prostate, kidney, neuron, adipose, and muscle tissue were developed that stably expressed the CFP-AR-YFP FRET reporter. We used these cells to screen a library of small molecules for cell type-selective AR inhibitors...
May 26, 2017: World Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28584793/clinical-significance-of-p53-protein-expression-beta-catenin-expression-and-her2-expression-for-epstein-barr-virus-associated-gastric-cancer
#10
Dong Won Baek, Byung Woog Kang, Soyoon Hwang, Jong Gwang Kim, An Na Seo, Han Ik Bae, Oh Kyoung Kwon, Seung Soo Lee, Ho Young Chung, Wansik Yu
This study assessed the expression of the p53 protein, beta-catenin, and HER2 and their prognostic implications in patients with EBV-associated gastric cancer (EBVaGC). After reviewing 1318 consecutive cases of surgically resected or endoscopic submucosal dissected gastric cancers, 117 patients were identified as EBV-positive using EBV-encoded RNA in-situ hybridization. The immunohistochemistry results were interpreted as follows: strong p53 nuclear expression in at least 50% of tumor nuclei was interpreted as a positive result, strong beta-catenin expression in at least 10% of cytoplasmic nuclei was interpreted as a positive result, and moderate or strong complete or basolateral membrane staining in 10% of tumor cells was interpreted as a positive result for HER2...
May 2017: Chonnam Medical Journal
https://www.readbyqxmd.com/read/28582348/phenotypic-intratumoral-heterogeneity-of-endometrial-carcinomas
#11
Cátia Silva, Ana S Pires-Luís, Eduardo Rocha, Carla Bartosch, José M Lopes
Intratumoral heterogeneity has been shown to play an important role in diagnostic accuracy, development of treatment resistance, and prognosis of cancer patients. Recent studies have proposed quantitative measurement of phenotypic intratumoral heterogeneity, but no study is yet available in endometrial carcinomas. In our study we evaluated the phenotypic intratumoral heterogeneity of a consecutive series of 10 endometrial carcinomas using measures of dispersion and diversity. Morphometric architectural (%tumor cells, %solid tumor, %differentiated tumor, and %lumens) and nuclear [volume-weighted mean nuclear volume (ν¯v)] parameters, as well as estrogen receptor, progesterone receptor, p53, vimentin, and beta-catenin immunoexpression (H-score) were digitally analyzed in 20 microscopic fields per carcinoma...
June 2, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28575850/deletion-of-tumor-suppressors-adenomatous-polyposis-coli-and-smad4-in-murine-luminal-epithelial-cells-causes-invasive-prostate-cancer-and-loss-of-androgen-receptor-expression
#12
Kenneth C Valkenburg, Angelo M De Marzo, Bart O Williams
Prostate cancer is the most diagnosed non-skin cancer in the US and kills approximately 27,000 men per year in the US. Additional genetic mouse models are needed that recapitulate the heterogeneous nature of human prostate cancer. The Wnt/beta-catenin signaling pathway is important for human prostate tumorigenesis and metastasis, and also drives tumorigenesis in mouse models. Loss of Smad4 has also been found in human prostate cancer and drives tumorigenesis and metastasis when coupled with other genetic aberrations in mouse models...
May 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28572010/making-cancer-quiescent-spdef-de-cycles-beta-catenin
#13
EDITORIAL
Barbara Fingleton
No abstract text is available yet for this article.
May 29, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28572009/how-to-gain-expertise-in-translational-research-during-training
#14
Ajay Bansal
No abstract text is available yet for this article.
May 29, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28543818/bone-formation-is-coupled-to-resorption-via-suppression-of-sclerostin-expression-by-osteoclasts
#15
Masanori Koide, Yasuhiro Kobayashi, Teruhito Yamashita, Shunsuke Uehara, Midori Nakamura, B Yukihiro Hiraoka, Yuki Ozaki, Tadahiro Iimura, Hisataka Yasuda, Naoyuki Takahashi, Nobuyuki Udagawa
Bone formation is coupled to bone resorption throughout life. However, the coupling mechanisms are not fully elucidated. Using Tnfrsf11b-deficient (OPG(-/-) ) mice, in which bone formation is clearly coupled to bone resorption, we found here that osteoclasts suppress the expression of sclerostin, a Wnt antagonist, thereby promoting bone formation. Wnt/β-catenin signals were higher in OPG(-/-) and RANKL-transgenic mice with a low level of sclerostin. Conditioned medium from osteoclast cultures (Ocl-CM) suppressed sclerostin expression in UMR106 cells and osteocyte cultures...
May 24, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28534077/white-matter-injury-in-the-preterm-infant-pathology-and-mechanisms
#16
REVIEW
Stephen A Back
The human preterm brain is particularly susceptible to cerebral white matter injury (WMI) that disrupts the normal progression of developmental myelination. Advances in the care of preterm infants have resulted in a sustained reduction in the severity of WMI that has shifted from more severe focal necrotic lesions to milder diffuse WMI. Nevertheless, WMI remains a global health problem and the most common cause of chronic neurological morbidity from cerebral palsy and diverse neurobehavioral disabilities. Diffuse WMI involves maturation-dependent vulnerability of the oligodendrocyte (OL) lineage with selective degeneration of late oligodendrocyte progenitors (preOLs) triggered by oxidative stress and other insults...
May 22, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28507620/expression-of-e-cadherin-beta-catenin-in-epithelial-carcinomas-of-the-thyroid-gland
#17
Koni Ivanova, Julian Ananiev, Elina Aleksandrova, Maria Magdalena Ignatova, Maya Gulubova
BACKGROUND: The aberrant activation of Wnt signalling pathway may be a common denominator for the development of thyroid tumorigenesis. It was announced that the loss of E-cadherin rather than β-catenin mutation represents a crucial event in determining the degree of differentiation of thyroid carcinomas. AIM: The aim of the study was to evaluate the expression of E-cadherin and β-catenin in the thyroid cancer tissue and to correlate these data with some histological and clinical parameters of the tumours...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28505585/giant-hepatocellular-carcinoma-with-bone-metastasis-in-a-young-adult-emerged-from-pigmented-adenoma-with-beta-catenin-activation-a-case-report
#18
Sebastian Lünse, Paula Döring, Claus-Dieter Heidecke, Lars Ivo Partecke
INTRODUCTION: Hepatocellular carcinomas (HCC) that are very large in size are a very rare finding in young adult. The malignant transformation of a pigmented hepatocellular adenoma (HCA) with beta-Catenin activation is a possible cause for appearance of HCC. PRESENTATION OF CASE: We present the case of a 33-year-old male with a huge HCC with bone metastasis, emerged from pigmented HCA with beta-Catenin activation. As a two-stage surgical procedure, a left hepatectomy followed by a partial rib resection was performed...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28500235/beta-catenin-inhibitor-bc2059-is-efficacious-as-monotherapy-or-in-combination-with-proteasome-inhibitor-bortezomib-in-multiple-myeloma
#19
Ioanna Savvidou, Tiffany Khong, Andrew Cuddihy, Catriona McLean, Stephen Horrigan, Andrew Spencer
Currently available treatment options are unlikely to be curative for the majority of multiple myeloma (MM) patients, emphasizing a continuing role for the introduction of investigational agents that can overcome drug resistance. The canonical Wnt/beta-catenin signalling pathway, essential for self-renewal, growth and survival, has been found to be dysregulated in MM, particularly in advanced stages of disease. This provides the rationale for evaluating the novel beta-catenin inhibitor BC2059 as monotherapy and in combination with proteasome inhibitors in vitro and in vivo...
May 12, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28499784/gsk-3-as-a-novel-prognostic-indicator-in-leukemia
#20
REVIEW
Peter P Ruvolo
While leukemias represent a diverse set of diseases with malignant cells derived from myeloid or lymphoid origin, a common feature is the dysregulation of signal transduction pathways that influence leukemogeneisis, promote drug resistance, and favor leukemia stem cells. Mutations in PI3K, PTEN, RAS, or other upstream regulators can activate the AKT kinase which has central roles in supporting cell proliferation and survival. A major target of AKT is Glycogen Synthase Kinase 3 (GSK3). GSK3 has two isoforms (alpha and beta) that were studied as regulators of metabolism but emerged as central players in cancer in the early 1990s...
May 8, 2017: Advances in Biological Regulation
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