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https://www.readbyqxmd.com/read/28296904/differentially-expressed-mirnas-in-sepsis-induced-acute-kidney-injury-target-oxidative-stress-and-mitochondrial-dysfunction-pathways
#1
Qin-Min Ge, Chun-Mei Huang, Xiang-Yang Zhu, Fan Bian, Shu-Ming Pan
OBJECTIVE: To identify specific miRNAs involved in sepsis-induced AKI and to explore their targeting pathways. METHODS: The expression profiles of miRNAs in serum from patients with sepsis-induced AKI (n = 6), sepsis-non AKI (n = 6), and healthy volunteers (n = 3) were investigated by microarray assay and validated by quantitative PCR (qPCR). The targets of the differentially expressed miRNAs were predicted by Target Scan, mirbase and Miranda. Then the significant functions and involvement in signaling pathways of gene ontology (GO) and KEGG pathways were analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28289266/wnts-synergize-to-activate-%C3%AE-catenin-signaling
#2
Anshula Alok, Zhengdeng Lei, N Suhas Jagannathan, Simran Kaur, Steven G Rozen, Lisa Tucker-Kellogg, David M Virshup
Wnt ligands regulate diverse signaling pathways during development, maintenance of tissue homeostasis, and in various disease states. While signaling regulated by individual Wnts has been extensively studied, Wnts are rarely expressed alone, and the consequences of Wnt gene co-expression are not well understood. We studied the effect of co-expression of Wnts on the β-catenin signaling pathway. While some Wnts are deemed 'non-canonical' due to their limited ability to activate β-catenin when expressed alone, unexpectedly, we find that multiple Wnt combinations can synergistically activate β-catenin signaling in multiple cell types...
March 13, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28286175/cilia-dependent-gli-processing-in-neural-crest-cells-is-required-for-tongue-development
#3
Grethel Millington, Kelsey Elliott, Ya-Ting Chang, Ching-Fang Chang, Andrzej Dlugosz, Samantha A Brugmann
Ciliopathies are a class of diseases caused by the loss of a ubiquitous, microtubule-based organelle called a primary cilium. Ciliopathies commonly result in defective development of the craniofacial complex, causing midfacial defects, craniosynostosis, micrognathia and aglossia. Herein, we explored how the conditional loss of primary cilia on neural crest cells (Kif3a(f/f);Wnt1-Cre) generated aglossia. On a cellular level, our data revealed that aglossia in Kif3a(f/f);Wnt1-Cre embryos was due to a loss of mesoderm-derived muscle precursors migrating into and surviving in the tongue anlage...
March 9, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28270411/-pro-renin-receptor-is-an-amplifier-of-wnt-%C3%AE-catenin-signaling-in-kidney-injury-and-fibrosis
#4
Zhen Li, Lili Zhou, Yongping Wang, Jinhua Miao, Xue Hong, Fan Fan Hou, Youhua Liu
The (pro)renin receptor (PRR) is a transmembrane protein with multiple functions. However, its regulation and role in the pathogenesis of CKD remain poorly defined. Here, we report that PRR is a downstream target and an essential component of Wnt/β-catenin signaling. In mouse models, induction of CKD by ischemia-reperfusion injury (IRI), adriamycin, or angiotensin II infusion upregulated PRR expression in kidney tubular epithelium. Immunohistochemical staining of kidney biopsy specimens also revealed induction of renal PRR in human CKD...
March 7, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28260089/overexpression-of-mir%C3%A2-214-promotes-the-progression-of-human-osteosarcoma-by-regulating-the-wnt-%C3%AE-%C3%A2-catenin-signaling-pathway
#5
Xun-Bing Zhu, Zhong-Chuan Zhang, Guan-Sheng Han, Jun-Zhu Han, Da-Peng Qiu
The aberrant expression of microRNA (miR)‑214 contributes to the regulation of normal and cancer cell biology, and is associated with human malignancies, however, it can operate in a contradictory manner. The role of miR‑214 in osteosarcoma remains to be fully elucidated. The aim of the present study was to investigate the effects of miR‑214 on osteosarcoma progression and tumor cell proliferation, and examine the molecular mechanism underlying osteosarcoma. The level of miR‑214 was determined using reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) analysis in osteosarcoma and matched paracancerous tissues, and in human osteosarcoma cancer cell lines...
February 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28253399/foxc1-and-foxc2-in-the-neural-crest-are-required-for-ocular-anterior-segment-development
#6
Seungwoon Seo, Lisheng Chen, Wenzhong Liu, Demin Zhao, Kathryn M Schultz, Amy Sasman, Ting Liu, Hao F Zhang, Philip J Gage, Tsutomu Kume
Purpose: The large Forkhead (Fox) transcription factor family has essential roles in development, and mutations cause a wide range of ocular and nonocular disease. One member, Foxc2 is expressed in neural crest (NC)-derived periocular mesenchymal cells of the developing murine eye; however, its precise role in the development, establishment, and maintenance of the ocular surface has yet to be investigated. Methods: To specifically delete Foxc2 from NC-derived cells, conditional knockout mice for Foxc2 (NC-Foxc2-/-) were generated by crossing Foxc2F mice with Wnt1-Cre mice...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28249010/tfap2-paralogs-regulate-melanocyte-differentiation-in-parallel-with-mitf
#7
Hannah E Seberg, Eric Van Otterloo, Stacie K Loftus, Huan Liu, Greg Bonde, Ramakrishna Sompallae, Derek E Gildea, Juan F Santana, J Robert Manak, William J Pavan, Trevor Williams, Robert A Cornell
Mutations in the gene encoding transcription factor TFAP2A result in pigmentation anomalies in model organisms and premature hair graying in humans. However, the pleiotropic functions of TFAP2A and its redundantly-acting paralogs have made the precise contribution of TFAP2-type activity to melanocyte differentiation unclear. Defining this contribution may help to explain why TFAP2A expression is reduced in advanced-stage melanoma compared to benign nevi. To identify genes with TFAP2A-dependent expression in melanocytes, we profile zebrafish tissue and mouse melanocytes deficient in Tfap2a, and find that expression of a small subset of genes underlying pigmentation phenotypes is TFAP2A-dependent, including Dct, Mc1r, Mlph, and Pmel...
March 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28246931/effects-of-sost-gene-silencing-on-proliferation-apoptosis-invasion-and-migration-of-human-osteosarcoma-cells-through-the-wnt-%C3%AE-catenin-signaling-pathway
#8
Jian Zou, Wei Zhang, Xiao-Lin Li
Our study explored the effects of SOST gene silencing on the proliferation, apoptosis, invasion, and migration of human osteosarcoma cells through Wnt/β-catenin signaling pathway. Fresh tissues were obtained from 108 patients with osteosarcoma and 46 patients with osteochondroma. Human osteosarcoma cells (MG-63, U2-OS, HOS, and Saos-2) and normal osteoblast (hFoB1.19) were selected and cultured. Osteosarcoma cells were grouped randomly into the blank group, the scrambled control group, and the SOST-siRNA group...
February 28, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28231299/exploration-of-inhibitory-mechanisms-of-curcumin-in-lung-cancer-metastasis-using-a-mirna-transcription-factor-target-gene-network
#9
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/28222099/morphological-study-of-tooth-development-in-podoplanin-deficient-mice
#10
Kenyo Takara, Naoki Maruo, Kyoko Oka, Chiaki Kaji, Yuji Hatakeyama, Naruhiko Sawa, Yukinari Kato, Junro Yamashita, Hiroshi Kojima, Yoshihiko Sawa
Podoplanin is a mucin-type highly O-glycosylated glycoprotein identified in several somatyic cells: podocytes, alveolar epithelial cells, lymphatic endothelial cells, lymph node stromal fibroblastic reticular cells, osteocytes, odontoblasts, mesothelial cells, glia cells, and others. It has been reported that podoplanin-RhoA interaction induces cytoskeleton relaxation and cell process stretching in fibroblastic cells and osteocytes, and that podoplanin plays a critical role in type I alveolar cell differentiation...
2017: PloS One
https://www.readbyqxmd.com/read/28199987/mir-34a-promotes-dcs-development-and-inhibits-their-function-on-t-cell-activation-by-targeting-wnt1
#11
Anfei Huang, Yi Yang, Si Chen, Fei Xia, Di Sun, Deyu Fang, Sidong Xiong, Liping Jin, Jinping Zhang
MicroRNAs serve important functions in numerous biological processes. Whether microRNAs also act on dendritic cell (DC) differentiation and function remains unclear. In this study, both conventional DCs (cDCs) and plasmacytoid DCs (pDCs) were increased in miR-34a overexpressing bone marrow chimeric and transgenic (TG) mice. Further experiments showed that miR-34a promoted preDC differentiated into cDCs and pDCs without affecting the proliferation and apoptosis of DCs. Luciferase report assay and Western blot experiments demonstrated that WNT1 is the direct target of miR-34a in DCs...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28199399/mirna-148a-serves-as-a-prognostic-factor-and-suppresses-migration-and-invasion-through-wnt1-in-non-small-cell-lung-cancer
#12
Yong Chen, Lingfeng Min, Chuanli Ren, Xingxiang Xu, Jianqi Yang, Xinchen Sun, Tao Wang, Fang Wang, Changjiang Sun, Xizhi Zhang
Lung cancer is the leading cause of cancer death in the world, and aberrant expression of miRNA is a common feature during the cancer initiation and development. Our previous study showed that levels of miRNA-148a assessed by quantitative real-time polymerase chain reaction (qRT-PCR) were a good prognosis factor for non-small cell lung cancer (NSCLC) patients. In this study, we used high-throughput formalin-fixed and paraffin-embedded (FFPE) lung cancer tissue arrays and in situ hybridization (ISH) to determine the clinical significances of miRNA-148a and aimed to find novel target of miRNA-148a in lung cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28198109/progenitors-in-peripheral-nerves-launch-heterotopic-ossification
#13
Elizabeth A Olmsted-Davis, Elizabeth A Salisbury, Diana Hoang, Eleanor L Davis, ZaWaunyka Lazard, Corinne Sonnet, Thomas A Davis, Jonathan A Forsberg, Alan R Davis
Studies presented here, using a murine model of bone morphogenetic protein type 2 (BMP2)-induced heterotopic ossification (HO) show that the protein initiates HO by signaling through progenitors in the endoneurium of peripheral nerves. In the mouse, these cells were identified in the endoneurium one day after BMP2 induction using antibody against phosphoSMAD (PS) 1, 5, and 8. Studies conducted in a tracking mouse that contains a tamoxifen-regulated Wnt1-Cre recombinase crossed with a td Tomato red (TR) reporter (Wnt1(CreErt) :Ai9Tm) confirmed their neural origin...
February 15, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28197199/electroacupuncture-at-dazhui-gv14-and-mingmen-gv4-protects-against-spinal-cord-injury-the-role-of-the-wnt-%C3%AE-catenin-signaling-pathway
#14
Xin Wang, Su-Hua Shi, Hai-Jiang Yao, Quan-Kai Jing, Yu-Ping Mo, Wei Lv, Liang-Yu Song, Xiao-Chen Yuan, Zhi-Gang Li, Li-Na Qin
Electroacupuncture at Dazhui (GV14) and Mingmen (GV4) on the Governor Vessel has been shown to exhibit curative effects on spinal cord injury; however, the underlying mechanism remains poorly understood. In this study, we established rat models of spinal cord injury using a modified Allen's weight-drop method. Ninety-nine male Sprague-Dawley rats were randomly divided into three equal groups: sham (only laminectomy), SCI (induction of spinal cord injury at T10), and EA (induction of spinal cord injury at T10 and electroacupuncture intervention at GV14 and GV4 for 20 minutes once a day)...
December 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/28186681/skin-derived-precursors-as-a-source-of-progenitors-for-corneal-endothelial-regeneration
#15
Emi Inagaki, Shin Hatou, Kazunari Higa, Satoru Yoshida, Shinsuke Shibata, Hideyuki Okano, Kazuo Tsubota, Shigeto Shimmura
Corneal blindness is the fourth leading cause of blindness in the world. Current treatment is allogenic corneal transplantation, which is limited by shortage of donors and immunological rejection. Skin-derived precursors (SKPs) are postnatal stem cells, which are self-renewing, multipotent precursors that can be isolated and expanded from the dermis. Facial skin may therefore be an accessible autologous source of neural crest derived cells. SKPs were isolated from facial skin of Wnt1-Cre/Floxed EGFP mouse. After inducing differentiation with medium containing retinoic acid and GSK 3-β inhibitor, SKPs formed polygonal corneal endothelial-like cells (sTECE)...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28181389/novel-lins1-missense-mutation-in-a-family-with-non-syndromic-intellectual-disability
#16
Jayesh Sheth, Gyan Ranjan, Krati Shah, Riddhi Bhavsar, Frenny Sheth
Newer sequencing technologies decipher molecular variations and increase the knowledge of pathogenesis of complex diseases like intellectual disability (ID), affecting 2-3% of the population. We report a novel family with a missense mutation in LINS1 as a cause for non-syndromic ID. Clinical exome sequencing for ID related genes carried out for a male with dysmorphism, mutism, and cognitive delay was uninformative. Subsequently, "pathogenic" and "likely pathogenic" variants associated with other inherited disorders were searched for as secondary findings...
February 9, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28151034/sfrp3-and-dkk1-regulate-fibroblast-like-synoviocytes-markers-and-wnt-elements-expression-depending-on-cellular-context
#17
Dorra Elhaj Mahmoud, Nadia Sassi, Ghassen Drissi, Maher Barsaoui, Khaled Zitouna, Hela Sahli, Maryam Kallel-Sellami, Lassad Kanoun, Elhem Cheour, Lilia Laadhar
CONTEXT: Fibroblast-like synoviocytes (FLS) from rheumatoid arthritis (RA) display pathogenic behavior. Various members of the Wnt pathway, especially the canonical Wnt/β-catenin cascade, may contribute to autonomous RA FLS activation. It has been shown that the two Wnt inhibitors: sFRP3 and DKK1 contribute to several critical aspects of joint biology. However, their effects on RA FLS are poorly characterized. The aim of our study was to investigate the effects of sFRP3 and DKK1 on FLS markers, Wnt components, and target oncogenes expression by RA FLS and compare the findings to osteoarthritic (OA) FLS...
February 2, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28150891/klk4-silencing-inhibits-the-growth-of-oral-squamous-cell-carcinoma-through-wnt-%C3%AE-catenin-signaling-pathway
#18
Zhi Cui, Ye Cui, Shuting Yang, Gan Luo, Yang Wang, Yixin Lou, Xinhua Sun
Oral squamous cell carcinoma (OSCC) is a malignancy that largely impacts the quality of people's daily life. Kallikrein-related peptidase 4 (KLK4) is highly expressed in OSCC; however, its roles in OSCC cells are unclear. In the present study, the effect of KLK4 silencing on the growth of OSCC cells was investigated. Our study showed that the proliferation and colony formation of OSCC cells was inhibited by KLK4 silencing and their cell cycle was arrested. Additionally, apoptosis of OSCC cells was enhanced by KLK4 silencing, with increased protein levels of cleaved PARP, cleaved caspase-3, Bax and decreased levels of Bcl-2...
February 2, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28149478/immunoexpression-of-wnt-%C3%AE-catenin-signaling-pathway-proteins-in-ameloblastoma-and-calcifying-cystic-odontogenic-tumor
#19
Sabrina-Nogueira Dutra, Fábio-Ramôa Pires, Luciana Armada, Rebeca-Souza Azevedo
BACKGROUND: Wnt/β-catenin signaling pathway is essential for the beginning of odontogenesis and may be involved in the development and progression of some odontogenic tumors. Thus, the aim of this study was to comparatively evaluate the immunohistochemical expression of Wnt/β-catenin signaling pathway proteins in a series of AME and CCOT. MATERIAL AND METHODS: Immunohistochemical reactions were performed using antibodies against Wnt1, Wnt5a and β-catenin in 17 cases of solid AME and 6 cases of CCOT...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28125843/pituitary-adenylate-cyclase-activating-peptide-pacap-a-novel-secretagogue-regulates-secreted-morphogens-in-newborn-rat-retina
#20
Monika Lakk, Viktoria Denes, Karmen Kovacs, Orsolya Hideg, Bence F Szabo, Robert Gabriel
Purpose: Pituitary adenylate cyclase-activating peptide (PACAP)1-38 has been reported to be responsible for regulation of a disparate array of developmental processes in the central nervous system, and its antiapoptotic effect has been revealed in numerous models, pointing to its relevance in the etiology of neurodegenerative disorders. However, its function in retinal development remains unclear. Here, we aimed to point out that versatility can be achieved through interaction with other regulators, in which PACAP can act indirectly on the retinal microenvironment...
January 1, 2017: Investigative Ophthalmology & Visual Science
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