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https://www.readbyqxmd.com/read/29739999/evaluation-of-wisp1-as-a-candidate-gene-for-bone-mineral-density-in-the-old-order-amish
#1
Xing Wang, Shabnam Salimi, Zhongliang Deng, James Perry, Kathleen A Ryan, Zhizhen Li, Dongfang Liu, Elizabeth Streeten, Alan R Shuldiner, Mao Fu
Wnt1-inducible signaling pathway protein-1 (WISP1) is a novel target of the Wnt pathway for modulating osteogenesis and improving bone strength. However, it is not clear if genetic variants in the WISP1 region are associated with bone mineral density (BMD) in human. The aim of this study is to investigate the role of genetic variation in WISP1 gene as a determinant of BMD in 1,510 Old Order Amish (OOA). We performed regional association analysis of 58 tag variants within 5 kb upstream and downstream to WISP1 with BMD and found 5 variants that were associated with BMD at multiple skeletal sites (P values from 2...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29738359/genomic-profile-and-pathologic-features-of-diffuse-large-b-cell-lymphoma-subtype-of-methotrexate-associated-lymphoproliferative-disorder-in-rheumatoid-arthritis-patients
#2
Joaquim Carreras, Yara Yukie Kikuti, Masashi Miyaoka, Shinichiro Hiraiwa, Sakura Tomita, Haruka Ikoma, Yusuke Kondo, Sawako Shiraiwa, Kiyoshi Ando, Shinji Sato, Yasuo Suzuki, Ikuo Miura, Giovanna Roncador, Naoya Nakamura
Rheumatoid arthritis patients often develop the diffuse large B-cell lymphoma subtype of methotrexate-associated lymphoproliferative disorder (DLBCL). We characterized the genomic profile and pathologic characteristics of 20 biopsies using an integrative approach. DLBCL was associated with extranodal involvement, a high/high-intermediate international prognostic index in 53% of cases, and responded to MTX withdrawal. The phenotype was nongerminal center B-cell in 85% of samples and Epstein-Barr encoding region positive (EBER) in 65%, with a high proliferation index and intermediate MYC expression levels...
May 5, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29733692/microrna-5110-regulates-pigmentation-by-cotargeting-melanophilin-and-wnt-family-member-1
#3
Shanshan Yang, Bo Liu, Kaiyuan Ji, Ruiwen Fan, Changsheng Dong
Mammalian pigmentation requires the production of melanin by melanocytes and its transfer to neighboring keratinocytes. These complex processes are regulated by several molecular pathways. Melanophilin ( MLPH) and WNT family member 1 ( WNT1), known to be involved in melanin transfer and melanin production, respectively, were predicted to be targets of microRNA-5110 using bioinformatics. In the current study, we investigated the effects of microRNA-5110 on pigmentation in alpaca ( Vicugna pacos) melanocytes...
May 7, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29731982/gene-specific-methylation-profiles-in-brca-mutation-positive-and-brca-mutation-negative-male-breast-cancers
#4
Piera Rizzolo, Valentina Silvestri, Virginia Valentini, Veronica Zelli, Ines Zanna, Giovanna Masala, Simonetta Bianchi, Domenico Palli, Laura Ottini
Male breast cancer (MBC) is a rare disease. Due to its rarity, MBC research and clinical approach are mostly based upon data derived from female breast cancer (FBC). Increasing evidence indicate that on molecular level MBC may be an heterogeneous disease different from FBC. In order to investigate whether epigenetic signatures could define molecular subgroups of MBCs, we performed promoter methylation analysis of genes involved in signal transduction and hormone signalling in BRCA1/2 mutation-positive and -negative MBCs...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29727702/prmt1-regulates-craniofacial-bone-formation-upstream-of-msx1
#5
Yongchao Gou, Jingyuan Li, Jian Wu, Rahul Gupta, Ihnbae Cho, Thach-Vu Ho, Yang Chai, Amy Merrill, Jun Wang, Jian Xu
Protein arginine methylation has been recently identified as an important form of post-translational modification (PTM). It is carried out by the protein arginine methyltransferase (PRMT) family of enzymes, which in mammals consists of nine members. Among them, PRMT1 is the major arginine methyltransferase and participates in transcription, signal transduction, development and cancer. The function of PRMT1 in craniofacial development remains unclear. We generated Wnt1-Cre;Prmt1fl/fl mice with cranial neural crest (CNC)-specific deletion of Prmt1 and compared CNC-derived craniofacial bones from newborn control and Wnt1-Cre;Prmt1fl/fl mice...
May 1, 2018: Mechanisms of Development
https://www.readbyqxmd.com/read/29715461/direct-visualization-of-the-wntless-induced-redistribution-of-wnt1-in-developing-chick-embryos
#6
Lisa M Galli, Frederick Santana, Chantilly Apollon, Linda A Szabo, Keri Ngo, Laura W Burrus
Paracrine Wnt signals are critical regulators of cell proliferation, specification, and differentiation during embryogenesis. Consistent with the discovery that Wnt ligands are post-translationally modified with palmitoleate (a 16 carbon mono-unsaturated fatty acid), our studies show that the vast majority of bioavailable chick WNT1 (cWNT1) produced in stably transfected L cells is cell-associated. Thus, it seems unlikely that the WNT1 signal is propagated by diffusion alone. Unfortunately, the production and transport of vertebrate Wnt proteins has been exceedingly difficult to study as few antibodies are able to detect endogenous Wnt proteins and fixation is known to disrupt the architecture of cells and tissues...
April 28, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29704505/research-on-epigenetic-mechanism-of-sfrp2-in-advanced-chronic-myeloid-leukemia
#7
Ziye Li, Jianmin Luo
Secreted frizzled-related protein 2 (SFRP2) has been reported to act as a tumor suppressors. This study aims to detect the biological role of SFRP2 in advanced chronic myeloid leukemia (CML). In this study we examined bone marrow samples from 45 CML patients and 10 healthy donors. K562 and KCL22 cells were cultured and treated with demethylation drug and histone deacetylase inhibitor (HDACi). KCL22 and K562 cells were transfected with lentiviral vector (LV)-SFRP2, LV-control. The cells were then subjected to proliferation and apoptosis assays, real time polymerase chain reaction (PCR), Methylation-specific PCR (MSP), Western blotting, co-immunoprecipitation (CoIP) and Chromatin immunoprecipitation (ChIP), We found that SFRP2 was down-regulated in the accelerated and blast phase of CML, whereas, the levels of WNT1, WNT3 and WNT5A were up-regulated in the accelerated and blast phase of CML...
April 25, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29679755/long-non-coding-rna-xist-sponges-mir-34a-to-promotes-colon-cancer-progression-via-wnt-%C3%AE-catenin-signaling-pathway
#8
Ningning Sun, Guozun Zhang, Yingying Liu
Little is known about the role of long non-coding RNA XIST in the development of colon cancer. The aim of the present study was to investigate the levels of XIST in colon cancer, and explore its underlying mechanism. In this study, we found XIST expression level was upregulated in colon cancer tissues and cell lines. In addition, the growth rate of cells transfected with si-XIST was significantly decreased compared to that with si-NC, which was reversed by miR-34a targeted with 3'-UTR. Moreover, miR-34a suppressed the expression of WNT1 by binding with the 3'-UTR, which interact with WNT1 to inhibit the proliferation of cells...
April 18, 2018: Gene
https://www.readbyqxmd.com/read/29655688/novel-ras-inhibitor-25-o-methylalisol-f-attenuates-epithelial-to-mesenchymal-transition-and-tubulo-interstitial-fibrosis-by-selectively-inhibiting-tgf-%C3%AE-mediated-smad3-phosphorylation
#9
Hua Chen, Tian Yang, Min-Chang Wang, Dan-Qian Chen, Yang Yang, Ying-Yong Zhao
BACKGROUND: Tubulo-interstitial fibrosis (TIF) is the common pathway in the chronic kidney disease (CKD). Epithelial-to-mesenchymal transition (EMT) is a major contributor to the TIF by the increased myofibroblasts. Renin-angiotensin system (RAS) is critical mediator on EMT in progressive CKD. Angiotensin II (ANG) mediates EMT and causes TIF by stimulating transforming growth factor-β1 (TGF-β1). RAS activation could further activate TGF-β1. Inhibition of the RAS is one of the most powerful therapies for progressive CKD...
March 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29626750/novel-regulatory-roles-of-wnt1-in-infection-associated-colorectal-cancer
#10
Jianwei Wang, Rong Lu, Xinghui Fu, Zhou Dan, Yong-Guo Zhang, Xinxia Chang, Qisha Liu, Yinglin Xia, Xingyin Liu, Jun Sun
Salmonella infection is a major public health concern, and colonization in humans can be chronic and increases the risk of cancers. Wnt signaling is a key pathway for intestinal renewal and development, inflammation, and tumorigenesis. In the current study, we report a novel role of Wnt1 in infection and colon cancer using cell culture models, a Salmonella-colitis colon cancer model, and human samples. In contrast to the bacteria-induced increases in Wnt2 and Wnt11, Salmonella colonization significantly reduced the level of Wnt1 in intestinal epithelial cells in vivo and in vitro...
April 4, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29619217/metabolomics-of-oncogene-specific-metabolic-reprogramming-during-breast-cancer
#11
Chen Dai, Jennifer Arceo, James Arnold, Arun Sreekumar, Norman J Dovichi, Jun Li, Laurie E Littlepage
Background: The complex yet interrelated connections between cancer metabolism and oncogenic driver genes are relatively unexplored but have the potential to identify novel biomarkers and drug targets with prognostic and therapeutic value. The goal of this study was to identify global metabolic profiles of breast tumors isolated from multiple transgenic mouse models and to identify unique metabolic signatures driven by these oncogenes. Methods: Using mass spectrometry (GC-MS, LC-MS/MS, and capillary zone electrophoresis (CZE)-MS platforms), we quantified and compared the levels of 374 metabolites in breast tissue from normal and transgenic mouse breast cancer models overexpressing a panel of oncogenes (PyMT, PyMT-DB, Wnt1, Neu, and C3-TAg)...
2018: Cancer & Metabolism
https://www.readbyqxmd.com/read/29618987/cholinergic-submucosal-neurons-display-increased-excitability-following-in-vivo-cholera-toxin-exposure-in-mouse-ileum
#12
Candice Fung, Katerina Koussoulas, Petra Unterweger, Andrew M Allen, Joel C Bornstein, Jaime P P Foong
Cholera-induced hypersecretion causes dehydration and death if untreated. Cholera toxin (CT) partly acts via the enteric nervous system (ENS) and induces long-lasting changes to enteric neuronal excitability following initial exposure, but the specific circuitry involved remains unclear. We examined this by first incubating CT or saline (control) in mouse ileal loops in vivo for 3.5 h and then assessed neuronal excitability in vitro using Ca2+ imaging and immunolabeling for the activity-dependent markers cFos and pCREB...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29603045/wnt-%C3%AE-catenin-signaling-pathway-in-severe-preeclampsia
#13
Xiaofang Wang, Zhan Zhang, Xianxu Zeng, Jinming Wang, Linlin Zhang, Wanyu Song, Ying Shi
This study aims to elucidate the mechanisms of Wnt/β-catenin signaling pathway in the development of preeclampsia (PE). The mRNA levels of Wnt1, β-catenin, c-myc and cyclinD1 were determined by real-time PCR in the placentas. Moreover, the expression levels of Wnt1, β-catenin, Dickkopf-1 (DKK1) and glycogen synthase kinase 3β (GSK-3β) proteins were detected by Western blot. Immunohistochemistry was used in placental tissue microarray to localize the expression of Wnt1, β-catenin, DKK1 proteins in the placentas of two groups...
March 30, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29599839/rapamycin-protects-against-paraquat-induced-pulmonary-epithelial-mesenchymal-transition-via-the-wnt-%C3%AE-catenin-signaling-pathway
#14
Chanthasone Vongphouttha, Jie Zhu, Shuhao Deng, Wenlin Tai, Wenjuan Wu, Zhenkun Li, Wen Lei, Yin Wang, Zhaoxing Dong, Tao Zhang
Paraquat (PQ) is a herbicide that is widely used in developing countries, and pulmonary fibrosisis one of the most typical features of PQ poisoning. The molecular mechanism underlying PQ toxicity is largely unknown, which makes it difficult to treat. In the present study, western blot analysis, reverse transcription-quantitative polymerase chain reaction and fluorescent immunostaining were used to analyze the effects of rapamycin on PQ-induced epithelial-mesenchymal transition (EMT) in A549 and MRC-5 cells...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29599817/wenyang-huazhuo-tongluo-formula-inhibits-fibrosis-via-suppressing-wnt-%C3%AE-catenin-signaling-pathway-in-a-bleomycin-induced-systemic-sclerosis-mouse-model
#15
Qian Wang, Wenhua Zang, Li Han, Lei Yang, Songshan Ye, Jingfeng Ouyang, Chaoyun Zhang, Yuefeng Bi, Cuiyue Zhang, Hua Bian
Background: Systemic sclerosis (SSc) is an autoimmune disease characterized by fibrosis of the skin and internal organs. So far, no Western medicine treatment can completely inhibit or reverse the progress of SSc, while at the same time, our previous series of studies have shown that the treatment of SSc by the Wenyang Huazhuo Tongluo formula (WYHZTL), a Chinese herbal decoction, shows a delightful prospect. The aim of this study is to further investigate the mechanism of anti-fibrosis of WYHZTL formula in SSc mouse model...
2018: Chinese Medicine
https://www.readbyqxmd.com/read/29577695/-enhancer-trapping-nearby-rps26-gene-in-zebrafish-mediated-by-the-tol2-transposon-and-it-s-annotation
#16
Yatong Sang, Dan Shen, Wei Chen, Shuheng Chan, Hao Gu, Bo Gao, Chengyi Song
With the completion of large-scale genome sequencing of human beings and other organisms, understanding the expression of control elements on the genome has become an important research task in the post-genome era. The enhancer trapping technology is an effective method for identifying enhancer elements in the genome and understanding its mechanism for gene expression regulation. In this study, we selected the stable enhancer trapping line TK4 (head and trunk specific GFP expression), which is generated with the mediation of Tol2 transposon system, and analyzed the trapped enhancers with the techniques of Splinkerette PCR (sp-PCR), in situ hybridization and comparative genomics...
March 25, 2018: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/29575325/neural-stem-cell-grafts-promote-astroglia-driven-neurorestoration-in-the-aged-parkinsonian-brain-via-wnt-%C3%AE-catenin-signalling
#17
Francesca L'Episcopo, Cataldo Tirolo, Luca Peruzzotti-Jametti, Maria F Serapide, Nunzio Testa, Salvatore Caniglia, Beatrice Balzarotti, Stefano Pluchino, Bianca Marchetti
During aging - one the most potent risk factors for Parkinson's disease (PD) - both astrocytes and microglia undergo functional changes that ultimately hamper homoeostasis, defence and repair of substantia nigra pars compacta (SNpc) midbrain dopaminergic (mDA) neurons. We tested the possibility of rejuvenating the host microenvironment and boosting SNpc DA neuronal plasticity via the unilateral transplantation of syngeneic neural stem/progenitor cells (NSCs) in the SNpc of aged mice with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced experimental PD...
March 25, 2018: Stem Cells
https://www.readbyqxmd.com/read/29567137/wnt-gene-family-members-and-their-expression-profiling-in-litopenaeus-vannamei
#18
Jiangli Du, Xiaojun Zhang, Jianbo Yuan, Xiaoxi Zhang, Fuhua Li, Jianhai Xiang
The Wnt gene family encodes secreted glycoproteins involved in a wide variety of biological processes, including embryo development, cell proliferation and differentiation, and tissue regeneration. The Wnt pathway exists in all metazoan animals, however, the relevant research is rare in crustaceans. Here we described 12 Wnt genes representing 12 Wnt gene subfamilies in the Pacific white shrimp, Litopenaeus vannamei. Based on homolog annotations and phylogenetic analyses, we named these 12 Wnt genes as LvWnt1, LvWnt2, LvWnt4-11, LvWnt16, and LvWntA...
March 19, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29552828/-killing-effect-of-huaier-combined-with-dc-cik-on-nude-mice-bearing-colon-cancer-ht29-stem-cells-in-vivo
#19
Wen-Wen Sun, Jin-Xia Dou, Lin Zhang, Li-Kui Qiao, Na Shen, Wen-Yuan Gao
To compare the therapeutic effects of different treatment methods on the nude mice bearing colon cancer HT29 cells. BalB/C nude mice colon cancer stem cell models were established and randomly divided into the following four groups, with 8 nude mice in each group: blank control group, DC-CIK group, Huaier group, and Huaier combined with DC-CIK group (combined treatment group). The mice in DC-CIK group and combined treatment group received 1×10⁶ DC-CIK cells treatment by tail vein injectionafter the tumor stem cells were inoculated for 4 days,2 times a week for three weeks...
January 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29552441/complex-heterozygous-wnt1-mutation-in-severe-recessive-osteogenesis-imperfecta-of-a-chinese-patient
#20
Yanqin Lu, Yunzhang Dai, Yanzhou Wang, Naixiang Zhai, Jian Zhang, Junlong Liu, Xiaoli Yin, Tianyou Li, Xiuzhi Ren, Jinxiang Han
Osteogenesis imperfecta (OI) is a heritable connective tissue disorder with a predominately autosomal-dominant inheritance pattern. Recessive forms of OI are rare and involve many different causative genes. WNT1 mutations were found to cause either autosomal-recessive OI or dominantly inherited early-onset osteoporosis. Here we describe a 32-year-old boy with severe osteopenia and deformity of the extremities. The relative long thumb and ring finger are obvious. We identified a novel combination of complex heterozygous WNT1 mutation of c...
February 2018: Intractable & Rare Diseases Research
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