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https://www.readbyqxmd.com/read/28102846/hepatitis-b-virus-x-protein-promotes-the-stem-like-properties-of-ov6-cancer-cells-in-hepatocellular-carcinoma
#1
Chao Wang, Ming-da Wang, Peng Cheng, Hai Huang, Wei Dong, Wei-Wei Zhang, Peng-Peng Li, Chuan Lin, Ze-Ya Pan, Meng-Chao Wu, Wei-Ping Zhou
Hepatitis B virus X protein (HBx) and cancer stem-like cells (CSCs) have both been implicated in the occurrence and development of HBV-related hepatocellular carcinoma (HCC). However, whether HBx contributes to the stem-like properties of OV6(+) CSCs in HCC remains elusive. In this study, we showed that the concomitant expression of HBx and OV6 was closely associated with the clinical outcomes and prognosis of patients with HBV-related HCC. HBx was required for the stem-like properties of OV6(+) liver CSCs, including self-renewal, stem cell-associated gene expression, tumorigenicity and chemoresistance...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102559/effect-of-bone-like-hydroxyapatite-poly-amino-acid-loaded-with-rifapentine-microspheres-on-bone-and-joint-tuberculosis-in-vitro
#2
Yuwu Liu, Dianming Jiang
Rifapentine-loaded poly(lactic-co-glycolic acid) microspheres (RPMs)-loaded bone-like hydroxyapatite/poly amino acid (BHA/PAA) is effective in curing S. aureus-induced chronic osteomyelitis. This study continues to investigate the effect of RPM-loaded BHA/PAA on the bacterial growth of Mycobacterium tuberculosis (MTB), cell proliferation and differentiation in MTB H37Rv-infected MG63 cells. Furthermore, whether Wnt/β-catenin signaling pathway was activated by RPM-loaded BHA/PAA was explored. We found the bactec growth index of H37Rv was significantly inhibited by RPM-loaded BHA/PAA...
January 19, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28102292/integrated-molecular-analysis-reveals-complex-interactions-between-genomic-and-epigenomic-alterations-in-esophageal-adenocarcinomas
#3
DunFa Peng, Yan Guo, Heidi Chen, Shilin Zhao, Kay Washington, TianLing Hu, Yu Shyr, Wael El-Rifai
The incidence of esophageal adenocarcinoma (EAC) is rapidly rising in the United States and Western countries. In this study, we carried out an integrative molecular analysis to identify interactions between genomic and epigenomic alterations in regulating gene expression networks in EAC. We detected significant alterations in DNA copy numbers (CN), gene expression levels, and DNA methylation profiles. The integrative analysis demonstrated that altered expression of 1,755 genes was associated with changes in CN or methylation...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102204/the-prevalence-of-ctnnb1-mutations-in-primary-aldosteronism-and-consequences-for-clinical-outcomes
#4
Vin-Cent Wu, Shuo-Meng Wang, Shih-Chieh Jeff Chueh, Shao-Yu Yang, Kuo-How Huang, Yen-Hung Lin, Jian-Jhong Wang, Rory Connolly, Ya-Hui Hu, Celso E Gomez-Sanchez, Kang-Yung Peng, Kwan-Dun Wu
Constitutive activation of the Wnt pathway/β-catenin signaling may be important in aldosterone-producing adenoma (APA). However, significant gaps remain in our understanding of the prevalence and clinical outcomes after adrenalectomy in APA patients harboring CTNNB1 mutations. The molecular expression of CYP11B2 and gonadal receptors in adenomas were also explored. Adenomas from 219 APA patients (95 men; 44.2%; aged 50.5 ± 11.9 years) showed a high rate of somatic mutations (n = 128, 58.4%). The majority of them harbored KCNJ5 mutations (n = 116, 52...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101190/ror2-inhibits-the-proliferation-of-gastric-carcinoma-cells-via-activation-of-non-canonical-wnt-signaling
#5
Likun Yan, Qingguo Du, Jianfeng Yao, Ruiting Liu
Gastric carcinoma is one of the most common human cancers and has a poor prognosis. Receptor tyrosine kinase-like orphan receptor 2 (ROR2), which is a non-canonical receptor of the Wnt signaling pathway, has been reported to be deregulated in numerous types of human cancers, including gastric carcinoma. However, the exact role of ROR2 in the regulation of the malignant phenotypes of gastric carcinoma, as well as the underlying molecular mechanism, remains largely unclear. The present study demonstrated that ROR2 was recurrently downregulated in gastric carcinoma tissues, as compared with their matched adjacent normal tissues...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101169/role-of-wnt-%C3%AE-catenin-wnt-c-jun-n-terminal-kinase-and-wnt-ca-2-pathways-in-cisplatin-induced-chemoresistance-in-ovarian-cancer
#6
Lu Huang, Ye Jin, Shujun Feng, Yuqing Zou, Sainan Xu, Shuang Qiu, Ling Li, Jianhua Zheng
The aim of the present study was to explore the expression of Wnt signaling proteins β-catenin, c-Jun N-terminal kinase (JNK) and Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) in ovarian cancer cells, and assess the correlation between this expression and cisplatin-induced chemoresistance. SKOV3 ovarian carcinoma cells and SKOV3/DDP (cisplatin resistant) cells were treated with cisplatin in the absence or presence of a Wnt signaling activator (CHIR-99021, glycogen synthase kinase 3β inhibitor) or inhibitor (XAV-939, tankyrase inhibitor)...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100625/the-ptpn14-tumour-suppressor-is-a-degradation-target-of-human-papillomavirus-e7
#7
Anita Szalmás, Vjekoslav Tomaić, Om Basukala, Paola Massimi, Suruchi Mittal, József Kónya, Lawrence Banks
: Activation of signalling pathways ensuring cell growth are essential for the proliferative competence of human papillomavirus (HPV)-infected cells. Tyrosine kinases and phosphatases are key regulators of cellular growth control pathways. A recently identified potential cellular target of HPV E7 is the cytoplasmic protein tyrosine phosphatase PTPN14, which is a potential tumour suppressor and is linked to the control of the Hippo and Wnt/beta-catenin signalling pathways. In this study we show that the E7 proteins of both high-risk and low-risk mucosal HPV types can interact with PTPN14...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28099945/in-vivo-and-in-vitro-effects-of-microrna-27a-on-proliferation-migration-and-invasion-of-breast-cancer-cells-through-targeting-of-sfrp1-gene-via-wnt-%C3%AE-catenin-signaling-pathway
#8
Ling-Yu Kong, Mei Xue, Qing-Cai Zhang, Chuan-Fu Su
This study aims to explore the effects of microRNA-27a (miR-27a) targeting of SFRP1 on the proliferation, migration and invasion of breast cancer (BC) cells through the regulation of Wnt/β-catenin signaling pathway. BC and normal breast tissues were obtained from 396 female BC patients and 308 female patients with benign breast lesions respectively. Human normal mammary epithelial (MCF-10A) and BC cell lines (BT-20, MCF-7, T-47D and MDA-MB-231) were cultured. After cell transfection, BC cells were assigned to six groups: control, miR-27a mimics, miR-27a inhibitors, negative control (NC), si-SFRP1 and si-SFRP1 + miR-27a inhibitors groups...
January 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099937/inactivation-of-ck1%C3%AE-in-multiple-myeloma-empowers-drug-cytotoxicity-by-affecting-akt-and-%C3%AE-catenin-survival-signaling-pathways
#9
Sabrina Manni, Marilena Carrino, Martina Manzoni, Ketty Gianesin, Sara Canovas Nunes, Matteo Costacurta, Laura Quotti Tubi, Paolo Macaccaro, Elisa Taiana, Anna Cabrelle, Gregorio Barilà, Annalisa Martines, Renato Zambello, Laura Bonaldi, Livio Trentin, Antonino Neri, Gianpietro Semenzato, Francesco Piazza
Recent evidence indicates that protein kinase CK1α may support the growth of multiple myeloma (MM) plasma cells. Here, by analyzing a large cohort of MM cases, we found that high CK1α mRNA levels are virtually associated with all MM patients. Moreover, we provided functional evidence that CK1α activity is essential for malignant plasma cell survival even in the protective niche generated by co-cultures with bone marrow stromal cells. We demonstrated that CK1α inactivation, while toxic for myeloma cells, is dispensable for the survival of healthy B lymphocytes and stromal cells...
January 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28098905/cripto-1-promotes-epithelial-mesenchymal-transition-in-prostate-cancer-via-wnt-%C3%AE-catenin-signaling
#10
Yan Liu, Zhenbang Qin, Kuo Yang, Ranlu Liu, Yong Xu
The Cripto-1 (CR-1) derived EGF-CFC family was overexpressed in tumor development enhancing proliferation, epithelial-mesenchymal transition (EMT) and migration of tumor cells. However, correlation between CR-1 and prostate cancer (PCa) remains still unclear. In the present study, we proved that CR-1 was expressed in PCa and its function was in the progression of PCa. Compared with benign prostatic hyperplasia (BPH) tissues, we confirmed that PCa tissues had high expression of CR-1 by immunohistochemistry and statistical data showed that CR-1 promoted properties of EMT in PCa tissues, including the downregulation of the cell adhesion molecules β-catenin (membrane) and E-cadherin while upregulating transcription factors β-catenin...
January 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098359/m2-like-macrophages-induce-colon-cancer-cell-invasion-via-matrix-metalloproteinases
#11
Katyayni Vinnakota, Yuan Zhang, Benson Chellakkan Selvanesan, Geriolda Topi, Tavga Salim, Janna Sand-Dejmek, Gunilla Jönsson, Anita Sjölander
The inflammatory milieu plays an important role in colon cancer development and progression. Previously, we have shown that tumor-associated macrophages (TAMs), an important component of the tumor microenvironment, are enriched in tumors compared with normal tissue and confer a poorer prognosis. In the present study, we found that matrix metallopeptidase-9 (MMP-9), which degrades extracellular matrix proteins, was increased in biopsies from colon cancer patients and in mouse xenografts with SW480 cell-derived tumors...
January 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28098144/oligo-fucoidan-prevents-renal-tubulointerstitial-fibrosis-by-inhibiting-the-cd44-signal-pathway
#12
Cheng-Hsien Chen, Yuh-Mou Sue, Chung-Yi Cheng, Yen-Cheng Chen, Chung-Te Liu, Yung-Ho Hsu, Pai-An Hwang, Nai-Jen Huang, Tso-Hsiao Chen
Tubulointerstitial fibrosis is recognized as a key determinant of progressive chronic kidney disease (CKD). Fucoidan, a sulphated polysaccharide extracted from brown seaweed, exerts beneficial effects in some nephropathy models. The present study evaluated the inhibitory effect of oligo-fucoidan (800 Da) on renal tubulointerstitial fibrosis. We established a mouse CKD model by right nephrectomy with transient ischemic injury to the left kidney. Six weeks after the surgery, we fed the CKD mice oligo-fucoidan at 10, 20, and 100 mg/kg/d for 6 weeks and found that the oligo-fucoidan doses less than 100 mg/kg/d improved renal function and reduced renal tubulointerstitial fibrosis in CKD mice...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28097806/a-silicone-rubber-membrane-with-a-specific-pore-size-enhances-cell-proliferation-and-wound-regeneration-via-the-wnt-%C3%AE-catenin-pathway
#13
Rui Xu, Yang Bai, Jian Zhao, Hesheng Xia, Yi Kong, Zhihui Yao, Rongshuai Yan, Xiaorong Zhang, Xiaohong Hu, Meixi Liu, Qingwu Yang, Gaoxing Luo, Jun Wu
A porous structure is critically important for wound dressing or tissue engineering scaffolds. However, the influence of the pore sizes on cell proliferation, tissue regeneration and the underlying mechanism remains unclear. In this study, silicone rubber membranes with different pore sizes were prepared using certain constituents of liquid silicone rubber (LSR) precursor/ liquid paraffin (LP) /hexane based on our previous studies. It was found that pore size had a significant impact on cell proliferation and wound healing...
January 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28097464/cdc42-promotes-schwann-cell-proliferation-and-migration-through-wnt-%C3%AE-catenin-and-p38-mapk-signaling-pathway-after-sciatic-nerve-injury
#14
Bin Han, Jun-Ying Zhao, Wu-Tao Wang, Zheng-Wei Li, Ai-Ping He, Xiao-Yang Song
Schwann cells (SCs) are unique glial cells in the peripheral nerve and may secrete multiple neurotrophic factors, adhesion molecules, extracellular matrix molecules to form the microenvironment of peripheral nerve regeneration, guiding and supporting nerve proliferation and migration. Cdc42 plays an important regulatory role in dynamic changes of the cytoskeleton. However, there is a little study referred to regulation and mechanism of Cdc42 on glial cells after peripheral nerve injury. The present study investigated the role of Cdc42 in the proliferation and migration of SCs after sciatic nerve injury...
January 17, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28096962/extra-virgin-olive-oil-in-maternal-diet-increases-osteogenic-genes-expression-but-high-amounts-have-deleterious-effects-on-bones-in-mice-offspring-at-adolescence
#15
Seyedeh Neda Mousavi, Fariba Koohdani, Mohamadreza Baghaban Eslaminejad, Pantea Izadi, Mohamadreza Eshraghian, Forough Azam Sayahpour, Leila Shafiei Neek, Farzad Shidfar
OBJECTIVES: Maternal high-fat diet has been shown to have deleterious effects on the offspring bones. However, there is no study to assess the effects of type and amount of maternal dietary oil in an isocaloric diet, with focus on extra virgin olive oil (EVOO). The objective of the current study was to test the hypothesis that type of maternal dietary oil has more effects than its amount in an isocaloric diet during gestation and lactation on bone genes expression in offspring in adolescence...
December 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28096344/atrial-natriuretic-peptide-regulates-adipose-tissue-accumulation-in-adult-atria
#16
Nadine Suffee, Thomas Moore-Morris, Patrick Farahmand, Catherine Rücker-Martin, Gilles Dilanian, Magali Fradet, Daigo Sawaki, Geneviève Derumeaux, Pascal LePrince, Karine Clément, Isabelle Dugail, Michel Puceat, Stéphane N Hatem
The abundance of epicardial adipose tissue (EAT) is associated with atrial fibrillation (AF), the most frequent cardiac arrhythmia. However, both the origin and the factors involved in EAT expansion are unknown. Here, we found that adult human atrial epicardial cells were highly adipogenic through an epithelial-mesenchymal transition both in vitro and in vivo. In a genetic lineage tracing the WT1(CreERT2+/-)Rosa(tdT+/-) mouse model subjected to a high-fat diet, adipocytes of atrial EAT derived from a subset of epicardial progenitors...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096336/%C3%AE-catenin-haploinsufficiency-promotes-mammary-tumorigenesis-in-an-erbb2-positive-basal-breast-cancer-model
#17
Bui Tung, Babette Schade, Robert D Cardiff, Olulanu H Aina, Virginie Sanguin-Gendreau, William J Muller
Aberrant activation of β-catenin through its activity as a transcription factor has been observed in a large proportion of human malignancies. Despite the improved understanding of the β-catenin signaling pathway over the past three decades, attempts to develop therapies targeting β-catenin remain challenging, and none of these targeted therapies have advanced to the clinic. In this study, we show that part of the challenge in antagonizing β-catenin is caused by its dual functionality as a cell adhesion molecule and a signaling molecule...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096263/integration-of-cadherin-adhesion-and-cytoskeleton-at-adherens-junctions
#18
René Marc Mège, Noboru Ishiyama
The cadherin-catenin adhesion complex is the key component of the intercellular adherens junction (AJ) that contributes both to tissue stability and dynamic cell movements in epithelial and nonepithelial tissues. The cadherin adhesion complex bridges neighboring cells and the actin-myosin cytoskeleton, and thereby contributes to mechanical coupling between cells which drives many morphogenetic events and tissue repair. Mechanotransduction at cadherin adhesions enables cells to sense, signal, and respond to physical changes in their environment...
January 17, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28096061/connexin37-deficiency-alters-organic-bone-matrix-cortical-bone-geometry-and-increases-wnt-%C3%AE-catenin-signaling
#19
Rafael Pacheco-Costa, Jay R Kadakia, Emily G Atkinson, Joseph M Wallace, Lilian I Plotkin, Rejane D Reginato
Deletion of connexin (Cx) 37 in mice leads to increased cancellous bone mass due to defective osteoclast differentiation. Paradoxically; however, Cx37-deficient mice exhibit reduced cortical thickness accompanied by higher bone strength, suggesting a contribution of Cx37 to bone matrix composition. Thus, we investigated whether global deletion of Cx37 alters the composition of organic bone extracellular matrix. Five-month-old Cx37(-/-) mice exhibited increased marrow cavity area, and periosteal and endocortical bone surface resulting in higher total area in tibia compared to Cx37(+/+) control mice...
January 13, 2017: Bone
https://www.readbyqxmd.com/read/28095618/genome-wide-analysis-of-canonical-wnt-target-gene-regulation-in-xenopus-tropicalis-challenges-%C3%AE-catenin-paradigm
#20
REVIEW
Yukio Nakamura, Stefan Hoppler
Wnt/β-catenin signaling is an important cell-to-cell signaling mechanism that controls gene expression during embryonic development and is critically implicated in human diseases. Developmental, cellular, and transcriptional responses to Wnt signaling are remarkably context-specific in different biological processes. While nuclear localization of β-catenin is the key to activation of the Wnt/β-catenin pathway and target gene expression, the molecular mechanisms of how the same Wnt/β-catenin signaling pathway induces specific responses remain undetermined...
January 17, 2017: Genesis: the Journal of Genetics and Development
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