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https://www.readbyqxmd.com/read/28648006/-0-5-gy-x-ray-radiation-promotes-osteoblast-differentiation-by-wnt-%C3%AE-catenin-signaling
#1
M Chen, Q R Dong, Q Huang, C She, W Xu
Objective: To investigate the important roles of Wnt signaling in the processes of 0.5Gy X-ray promoting osteoblast differentiation, and make clear the molecular mechanisms involved. Methods: Flow cytometry was employed to detect the apoptosis after osteoblast exposure to 0.5 Gy X-ray radiation.The protein level of osteoblast differentiation markers, such as collagen Iα (Col1α), alkaline phosphatase (ALP), osteocalcin (OCN), were detected by Western-blot and ALP activity staining was performed. Real-time PCR and Western-blot were utilized to evaluate the variations of key factors in Wnt signaling pathways, while specific inhibitor of Wnt/β-Catenin, XAV939 was used to block the Wnt signaling...
June 20, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28647886/wnt-signaling-in-ewing-sarcoma-osteosarcoma-and-malignant-peripheral-nerve-sheath-tumors
#2
REVIEW
Matthew G Pridgeon, Patrick J Grohar, Matthew R Steensma, Bart O Williams
PURPOSE OF REVIEW: Wnt signaling plays a central role in development and homeostasis, and its dysregulation is a common event in many types of human cancer. Here we explore in detail the contributions of Wnt signaling to the initiation and maintenance of three types of saroma: Ewing sarcoma, osteosarcoma, and malignant peripheral nerve sheath tumors. This review provides an overview of the Wnt signaling pathway and explores in detail the current knowledge about its role in the initiation or maintenance of three tumor types: Ewing sarcoma, osteosarcoma, and malignant peripheral nerve sheath tumors...
June 24, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28647818/assessment-of-the-effect-of-systemic-delivery-of-sclerostin-antibodies-on-wnt-signaling-in-distraction-osteogenesis
#3
Mohammad M Alzahrani, Asim M Makhdom, Frank Rauch, Dominique Lauzier, Maria Kotsiopriftis, Saber Ghadakzadeh, Reggie C Hamdy
Sclerostin is a known inhibitor of the Wnt signaling pathway which is involved in osteogenesis and, when inactivated, stimulates bone formation. To our knowledge, this effect has not been studied in the context of distraction osteogenesis (DO). Tibial DO was conducted on a total of 24 wild-type mice, which were then divided into 2 groups-a saline injection group (control) and an anti-sclerostin (Scl-Ab) injection group (treatment). The mice in the treatment group received 100 mg/kg intravenous injections of the antibody weekly until killing...
June 24, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28647646/the-secreted-protein-wnt5a-regulates-condylar-chondrocyte-proliferation-hypertrophy-and-migration
#4
Xianpeng Ge, Ruirui Shi, Xuchen Ma
OBJECTIVE: Our previous study showed that WNT5A, a member of the noncanonical WNT pathway, is involved in interleukin-1beta induced matrix metalloproteinase expression in temporomandibular joint (TMJ) condylar chondrocytes. The purpose of this study is to further explore the roles of WNT5A in cartilage biology of the TMJ. METHODS: An early TMJ osteoarthritis-like rat model was constructed by a mechanical method (steady mouth-opening). The gene and protein levels of WNT5A during the condylar cartilage changes were measured...
June 16, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28647408/identification-and-expression-characterization-of-wnta-during-intestinal-regeneration-in-the-sea-cucumber-apostichopus-japonicus
#5
Xiaoni Li, Lina Sun, Hongsheng Yang, Libin Zhang, Ting Miao, Lili Xing, Da Huo
Wnt genes encode secreted glycoproteins that act as signaling molecules; these molecules direct cell proliferation, migration, differentiation and survival during animal development, maintenance of homeostasis and regeneration. At present, although the regeneration mechanism in Apostichopus japonicus has been studied, there is a little research on the Wnt signaling pathway in A. japonicus. To understand the potential role of the Wnt signaling pathway in A. japonicus, we cloned and sequenced the WntA gene in A...
June 21, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28646917/polycaprolactone-nanofiber-scaffold-enhances-the-osteogenic-differentiation-potency-of-various-human-tissue-derived-mesenchymal-stem-cells
#6
Ruyue Xue, Yuna Qian, Linhao Li, Guidong Yao, Li Yang, Yingpu Sun
BACKGROUND: Polycaprolactone (PCL) has been regarded as a promising synthetic material for bone tissue engineering application. Owing to its unique biochemical properties and great compatibility, PCL fibers have come to be explored as a potential delivering scaffold for stem cells to support bone regeneration during clinical application. METHODS: The human derived mesenchymal stem cells (MSCs) were obtained from umbilical cord (UC), bone marrow (BM), and adipose tissue (AD), respectively...
June 24, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28646916/prc1-contributes-to-tumorigenesis-of-lung-adenocarcinoma-in-association-with-the-wnt-%C3%AE-catenin-signaling-pathway
#7
Ping Zhan, Bin Zhang, Guang-Min Xi, Ying Wu, Hong-Bing Liu, Ya-Fang Liu, Wu-Jian Xu, Qing-Qing Zhu, Feng Cai, Ze-Jun Zhou, Ying-Ying Miu, Xiao-Xia Wang, Jia-Jia Jin, Qian Li, Li-Ping Qian, Tang-Feng Lv, Yong Song
BACKGROUND: Protein regulator of cytokinesis-1 (PRC1) belongs to the microtubule-associated proteins (MAPs) family, and is involved in cytokinesis. Recent investigations suggest PRC1 involvement in human carcinogenesis, including breast carcinoma, hepatocellular carcinoma and etc. However, whether PRC1 contributes to lung adenocarcinoma tumorigenesis remains unknown. METHODS: Quantitative reverse-transcription polymerase chain reaction (qRT-PCR), Western blotting and Immunohistochemical staining (IHC) were used to evaluate and contrast the PRC1 expression profile in lung adenocarcinoma and adjacent normal lung tissues...
June 24, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28646284/chd1l-expression-increases-tumor-progression-and-acts-as-a-predictive-biomarker-for-poor-prognosis-in-pancreatic-cancer
#8
Chuan Liu, Xiaowei Fu, Zhiwei Zhong, Jing Zhang, Haiyan Mou, Qiong Wu, Tianle Sheng, Bo Huang, Yeqing Zou
BACKGROUND: The chromodomain helicase/ATPase DNA binding protein 1-like gene (CHD1L) plays a key role in controlling various cellular phenomena, including immune-mediated inflammation, transformation, apoptosis, cell cycle progression, and proliferation. METHODS: This study investigated the function and clinical significance of CHD1L protein expression in pancreatic cancer (PC). We analyzed CHD1L expression in surgical specimens from 112 PC patients. The correlation between the clinical characteristics and prognosis was also determined...
June 23, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28645563/bruceine-d-inhibits-hepatocellular-carcinoma-growth-by-targeting-%C3%AE-catenin-jagged1-pathways
#9
Ziying Cheng, Xing Yuan, Yi Qu, Xia Li, Guozhen Wu, Chenwei Li, Xianpeng Zu, Niao Yang, Xisong Ke, Juan Zhou, Ning Xie, Xike Xu, Shanrong Liu, Yunheng Shen, Huiliang Li, Weidong Zhang
Hepatocellular carcinoma (HCC) is known for high mortality and limited available treatments. Aberrant activation of the Wnt and Notch signaling pathways is critical to liver carcinogenesis and progression. Here, we identified a small molecule, bruceine D (BD), as a Notch inhibitor, using an RBP-Jκ-dependent luciferase-reporter system. BD significantly inhibited liver tumor growth and enhanced the therapeutic effects of sorafenib in various murine HCC models. Mechanistically, BD promotes proteasomal degradation of β-catenin and the depletion of its nuclear accumulation, which in turn disrupts the Wnt/β-catenin-dependent transcription of the Notch ligand Jagged1 in HCC...
June 20, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28645312/phf21b-overexpression-promotes-cancer-stem-cell-like-traits-in-prostate-cancer-cells-by-activating-the-wnt-%C3%AE-catenin-signaling-pathway
#10
Qiji Li, Liping Ye, Wei Guo, Min Wang, Shuai Huang, Xinsheng Peng
BACKGROUND: PHF21B is newly identified to be involved in the tumor progression; however, its biological role and molecular mechanism in prostate cancer have not been defined. This study is aimed to study the role of PHF21B in the progression of prostate cancer. METHODS: Real-time PCR, immunohistochemistry and western blotting analysis were used to determine PHF21B expression in prostate cancer cell lines and clinical specimens. The role of PHF21B in maintaining prostate cancer stem cell-like phenotype was examined by tumor-sphere formation assay and expression levels of stem cell markers...
June 23, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28644919/signaling-and-epigenetic-mechanisms-of-intestinal-stem-cells-and-progenitors-insight-into-crypt-homeostasis-plasticity-and-niches
#11
REVIEW
Ryan J Smith, Abilasha Rao-Bhatia, Tae-Hee Kim
The rapid turnover of intestinal epithelial cells is maintained by a small number of stem cells located in pocket-like gland structures called crypts. While our understanding of the identity and function of intestinal stem cells (ISCs) has rapidly progressed, epigenetic and transcriptional regulation in crypt stem cell and progenitor pools remains an active field of investigation. Surrounded by various types of cells in the stroma, crypt progenitors display high levels of plasticity, harboring the ability to interconvert in the face of epithelial damage...
June 23, 2017: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/28643912/mouse-models-for-the-study-of-cranial-base-growth-and-anomalies
#12
REVIEW
S R Vora
The cranial base is a central and integral component of the cranioskeleton, yet little is known about its growth. Despite the dissimilarities between human and murine cranioskeletal form, mouse models are proving instrumental in studying craniofacial growth. The objectives of this review are to summarize recent findings from numerous mouse models that display growth defects in one or more cranial base synchondroses, with accompanying changes in chondrocyte cellular zones. Many of these models also display altered growth of the cranial vault and/or the facial region...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28643330/muc1-c-is-a-target-in-lenalidomide-resistant-multiple-myeloma
#13
Li Yin, Ashujit Tagde, Reddy Gali, Yu-Tzu Tai, Teru Hideshima, Kenneth Anderson, David Avigan, Donald Kufe
Lenalidomide (LEN) acts directly on multiple myeloma (MM) cells by inducing cereblon-mediated degradation of interferon regulatory factor 4, Ikaros (IKZF)1 and IKZF3, transcription factors that are essential for MM cell survival. The mucin 1 (MUC1) C-terminal transmembrane subunit (MUC1-C) oncoprotein is aberrantly expressed by MM cells and protects against reactive oxygen species (ROS)-mediated MM cell death. The present studies demonstrate that targeting MUC1-C with GO-203, a cell-penetrating peptide inhibitor of MUC1-C homodimerization, is more than additive with LEN in downregulating the WNT/β-catenin pathway, suppressing MYC, and inducing late apoptosis/necrosis...
June 23, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28643150/epigenetically-controlled-six3-expression-regulates-glioblastoma-cell-proliferation-and-invasion-alongside-modulating-the-activation-levels-of-wnt-pathway-members
#14
Baoxin Zhang, Chenfu Shen, Fengyun Ge, Tingting Ma, Zuping Zhang
Glioma is the most common primary brain tumor in adults. Six3 is a human homologue of the highly conserved sine oculis gene family and essential transcription regulatory factor in process of eye and fetal forebrain development. However, little is known about the role of Six3 in human tumorigenesis. The aim of this study is to investigate the methylation/expression of Six3 and reveal its function and action mechanism in glioma. Our results showed that Six3 was down-regulated in human glioma tissues and human glioma SHG-44, U251, SF126 and U373-MG cells compared with the normal tissues...
June 22, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28642544/resistin-promotes-the-abnormal-type-i-collagen-phenotype-of-subchondral-bone-in-obese-patients-with-end-stage-hip-osteoarthritis
#15
Ashleigh M Philp, Rebecca L Collier, Liam M Grover, Edward T Davis, Simon W Jones
The purpose of this study was to determine the effect of adiposity on the architecture and composition of hip OA subchondral bone, and to examine the pathological role of adipokines. Femoral heads were collected from normal-weight or over-weight/obese patients with hip OA. Structural parameters of subchondral bone were determined by MicroCT and type I collagen α1/α2 ratio was determined by SDS PAGE and by qRT-PCR in ex-vivo bone explants. The serum concentration of adipokines was determined by Luminex. The effect of resistin on primary OA osteoblasts was determined by analysis of Wnt pathway signal transduction, bone nodule formation, and osteoblast metabolic activity...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642450/cbp501-inhibits-egf-dependent-cell-migration-invasion-and-epithelial-to-mesenchymal-transition-of-non-small-cell-lung-cancer-cells-by-blocking-kras-to-calmodulin-binding
#16
Naoya Saito, Naoki Mine, Donald W Kufe, Daniel D Von Hoff, Takumi Kawabe
The anti-cancer agent CBP501 binds to calmodulin (CaM). Recent studies showed that migration and metastasis are inhibited by several CaM antagonists. However, there is no available evidence that CBP501 has similar effects. Here we found that CBP501 inhibits migration of non-small cell lung cancer (NSCLC) cells in vitro, even in the presence of migration inducing factors such as WNT, IL-6, and several growth factors. CBP501 also inhibited epidermal growth factor (EGF) enhanced invasion and the epithelial-to-mesenchymal transition (EMT), and this inhibition was accompanied by (i) suppression of Akt and ERK1/2 phosphorylation, and (ii) suppression of expression of transcription factor Zeb1 and the mesenchymal marker Vimentin...
June 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28642062/lrh-1-senses-signaling-from-phosphatidylcholine-to-regulate-the-expansion-growth-of-digestive-organs-via-synergy-with-wnt-%C3%AE-catenin-signaling-in-zebrafish
#17
Gang Zhai, Jia Song, Tingting Shu, Junjun Yan, Xia Jin, Jiangyan He, Zhan Yin
Liver receptor homolog-1 (LRH-1) is an orphan nuclear receptor that is critical for the growth and proliferation of cancer cells and other biological processes, including lipid transportation and metabolism, sexual determination and steroidogenesis. However, because homozygous lrh-1(-/-) mice die in utero, the regulatory mechanisms involved in embryonic development mediated by this receptor are poorly understood. In the present study, we performed transcription activator-like effector nuclease (TALEN)-mediated loss-of-function assays, taking advantage of zebrafish external fertilization, to investigate the function of lrh-1...
April 27, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28641961/wnt5a-and-its-signaling-pathway-in-angiogenesis
#18
REVIEW
Ya-Ning Shi, Neng Zhu, Chan Liu, Hong-Tao Wu, Yu Gui, Duan-Fang Liao, Li Qin
Wnt5a, a secreted glycoprotein, belongs to the noncanonical Wnt family involved in a wide range of organism development and tissue homeostasis. Wnt5a and its signaling pathway can regulate fundamental cellular processes, including specification of cell fate, proliferation, and survival. Accumulating evidence indicates that Wnt5a exhibits dual effects on angiogenesis. The formation of new blood vessels derives from pre-existing vessels via canonical and non-canonical Wnt pathways, depending on cell types, receptors, downstream effectors, and microenvironment...
June 20, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28641613/-prostaglandin-e2-receptor-4-agonist-promotes-human-cd34-cell-proliferation-in-vitro-by-activating-wnt-%C3%AE-catenin-signaling-pathway
#19
Ya-Qun Wang, Fang-Jie Liu, Hui-Zhen Chen, He-Hua Wang, Wai-Yi Zou, Chang Su, Juan Li, Duo-Rong Xu
OBJECTIVE: To investigate the potential signaling pathway that regulates the proliferation of human CD34(+) cells stimulated by prostaglandin E2 receptor 4 agonist (EP4A) in vitro. METHODS: Twenty samples of peripheral blood containing stem cells were collected from the G-CSF mobilized healthy donors in our department of hematology. Human CD34(+) cells were isolated by magnetic activated cell sorting (MACS) microbeads kit. The Cell Counting Kit-8 (CCK8) assay was used to determine the optimal concentration and time of EP4A to promote human CD34(+) cell proliferation in vitro...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28639895/upregulation-of-mir-199a-b-contributes-to-cisplatin-resistance-via-wnt-%C3%AE-catenin-abcg2-signaling-pathway-in-aldha1-colorectal-cancer-stem-cells
#20
Binghe Chen, Dezhong Zhang, Jun Kuai, Mingkun Cheng, Xiangjie Fang, Guangyan Li
Cisplatin resistance in colorectal cancer largely results from the colorectal cancer stem cells which could be targeted to improve the efficacy of chemotherapy. MicroRNAs are possible modulators of cancer stem cell characteristics and maybe involved in the retention of cancer stem cell chemoresistance. The aim of this study was to investigate the biological function of miR-199a/b on cisplatin resistance in colorectal cancer stem cells and its related mechanisms. Here, ALDHA1(+) cells from primary colorectal cancer tissues behaved similar to cancer stem cells and were chemoresistant to cisplatin...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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