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https://www.readbyqxmd.com/read/28537914/epigenomic-study-identifies-a-novel-mesenchyme-homeobox2-gli1-transcription-axis-involved-in-cancer-drug-resistance-overall-survival-and-therapy-prognosis-in-lung-cancer-patients
#1
Leonel Armas-López, Patricia Piña-Sánchez, Oscar Arrieta, Enrique Guzman de Alba, Blanca Ortiz-Quintero, Patricio Santillán-Doherty, David C Christiani, Joaquín Zúñiga, Federico Ávila-Moreno
Several homeobox-related gene (HOX) transcription factors such as mesenchyme HOX-2 (MEOX2) have previously been associated with cancer drug resistance, malignant progression and/or clinical prognostic responses in lung cancer patients; however, the mechanisms involved in these responses have yet to be elucidated. Here, an epigenomic strategy was implemented to identify novel MEOX2 gene promoter transcription targets and propose a new molecular mechanism underlying lung cancer drug resistance and poor clinical prognosis...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28527696/essential-roles-of-g9a-in-cell-proliferation-and-differentiation-during-tooth-development
#2
Taichi Kamiunten, Hisashi Ideno, Akemi Shimada, Yoshinori Arai, Tatsuo Terashima, Yasuhiro Tomooka, Yoshiki Nakamura, Kazuhisa Nakashima, Hiroshi Kimura, Yoichi Shinkai, Makoto Tachibana, Akira Nifuji
Teeth develop through interactions between epithelial and mesenchymal tissues mediated by a signaling network comprised of growth factors and transcription factors However, little is known about how epigenetic modifiers affect signaling pathways and thereby regulate tooth formation. We previously reported that the histone 3 lysine 9 (H3K9) methyltransferase (MTase) G9a is specifically enriched in the tooth mesenchyme during mouse development. In this study, we investigated the functions of G9a in tooth development using G9a conditional knockout (KO) mice...
May 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28524856/histone-variant-h3-3-orchestrates-neural-stem-cell-differentiation-in-the-developing-brain
#3
Wenlong Xia, Jianwei Jiao
During the brain development, the process of neural stem cells (NSCs) proliferation and differentiation is precisely regulated. The deficiency in the embryonic brain development will cause serious developmental disorders. Epigenetic modifications play critical roles in controlling proliferation and differentiation in different types of stem cells. Histone variants, as one of epigenetic regulators, have been reported to be associated with many bioprocesses. Among different variants, H3.3 is one of the important epigenetic regulators, but its role in embryonic NSCs remains unclear...
May 19, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28514345/-immunohistochemical-criteria-for-differential-diagnostics-of-squamous-epithelium-changes-in-pyogenic-granuloma-and-squamous-cell-carcinoma-of-the-oral-mucosa
#4
A A Ivina, V A Semkin, I I Babichenko
The paper presents an example of differential diagnostic studies for pyogenic granuloma and oral squamous cell carcinoma (SCC). In the described case immunohistochemistry with antibodies to Ki-67 and Gli1 was used as conventional histological procedure proved to be inconvenient for adequate diagnostics. The immunohistochemical study established increased proliferative activity of epithelial cells specific both pyogenic granuloma and oral SCC, but intensive Gli1 protein expression in membranes and cytoplasm of epithelial cells with malignant transformation allowed differentiation of these neoplasms...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28512846/melatonin-influences-the-sonic-hedgehog-signaling-pathway-in-porcine-cumulus-oocyte-complexes
#5
Sanghoon Lee, Jun-Xue Jin, Anukul Taweechaipaisankul, Geon A Kim, Curie Ahn, Byeong Chun Lee
Melatonin, which is synthesized in the pineal gland and peripheral reproductive organs, has antioxidant properties and regulates physiological processes. It is well known that melatonin affects in vitro maturation (IVM) of oocytes and embryonic development in many species. However, beneficial effects of melatonin on IVM have been explained mainly by indirect antioxidant effects and little information is available on the underlying mechanism by which melatonin directly acts on porcine cumulus oocyte complexes (COCs)...
May 17, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28507311/disruption-of-shh-signaling-cascade-by-sbe-attenuates-lung-cancer-progression-and-sensitizes-ddp-treatment
#6
Jing Du, Weiwei Chen, Lijuan Yang, Juanjuan Dai, Jiwei Guo, Yan Wu, Kaikai Gong, Jian Zhang, Ning Yu, Zhen Xie, Sichuan Xi
Deregulated Sonic Hedgehog (SHH) pathway facilitates the initiation, progression, and metastasis of Non-small cell lung cancer (NSCLC), confers drug resistance and renders a therapeutic interference option to lung cancer patients with poor prognosis. In this study, we screened and evaluated the specificity of a Chinese herb Scutellariabarbata D. Don extraction (SBE) in repressing SHH signaling pathway to block NSCLC progression. Our study confirmed that aberrant activation of the SHH signal pathway conferred more proliferative and invasive phenotypes to human lung cancer cells...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28506991/sonic-hedgehog-regulation-of-foxf2-promotes-cranial-neural-crest-mesenchyme-proliferation-and-is-disrupted-in-cleft-lip-morphogenesis
#7
Joshua L Everson, Dustin M Fink, Joon Won Yoon, Elizabeth J Leslie, Henry W Kietzman, Lydia J Ansen-Wilson, Hannah M Chung, David O Walterhouse, Mary L Marazita, Robert J Lipinski
Cleft lip is one of the most common human birth defects, yet our understanding of the mechanisms that regulate lip morphogenesis is limited. Here, we show that Sonic Hedgehog (Shh)-induced proliferation of cranial neural crest cell (cNCC) mesenchyme is required for upper lip closure. Gene expression profiling revealed a subset of Forkhead box (Fox) genes regulated by Shh signaling during lip morphogenesis. During cleft pathogenesis, reduced proliferation in the medial nasal process mesenchyme paralleled the domain of reduced Foxf2 and Gli1 expression...
May 15, 2017: Development
https://www.readbyqxmd.com/read/28505006/myopericytomatosis-clinicopathologic-analysis-of-11-cases-with-molecular-identification-of-recurrent-pdgfrb-alterations-in-myopericytomatosis-and-myopericytoma
#8
Yin P Hung, Christopher D M Fletcher
Myopericytoma is a benign tumor of concentrically distributed perivascular myoid cells. Its molecular basis and relationship with myofibroma/myofibromatosis and other pericytic tumors are not fully understood. In our consultation/surgical files of over 1000 myopericytic lesions, we identified 11 cases with diffuse dermal/subcutaneous involvement by microscopic myopericytomatous nodules, a phenomenon we have termed myopericytomatosis. Myopericytomatosis affected mostly adults (female:male=8:3; median age, 37 y; range, 9 to 63 y) in the lower extremities (foot/ankle, 5; calf, 3; knee, 1; thigh, 1; neck, 1) over months to 25 years, ranging from 1...
May 12, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28487292/gli3-repressor-determines-hedgehog-pathway-activation-and-is-required-for-response-to-smo-antagonist-glasdegib-in-aml
#9
Parvesh Chaudhry, Mohan Singh, Timothy J Triche, Monica Guzman, Akil A Merchant
The Hedgehog (Hh) signaling pathway is activated in many cancers and is a promising target for therapeutic development. Deletions in the receptor Patched (PTCH) or activating mutations in Smoothened (SMO) have been reported in basal cell carcinoma (BCC) and medulloblastoma, but are largely absent in most tumor types; therefore, the mechanism of pathway activation in most cancers, including hematological malignancies, remains unknown. In normal tissues, Hh pathway activation via PTCH/SMO causes an increase in the downstream transcriptional activator GLI1 and a decrease in the transcriptional repressor GLI3R...
May 9, 2017: Blood
https://www.readbyqxmd.com/read/28487226/oncogenic-function-of-tusc3-in-non-small-cell-lung-cancer-is-associated-with-hedgehog-signalling-pathway
#10
Ye Gu, Xiaojuan Pei, Yansong Ren, Kaican Cai, Kang Guo, Jiaye Chen, Weizhao Qin, Mingdao Lin, Qian Wang, Na Tang, Zhiqiang Cheng, Yanqing Ding, Jie Lin
Non-small cell lung cancer (NSCLC) represents 75-80% of all lung carcinomas, which is the most common cause of death from cancer. Tumour suppressor candidate 3 (TUSC3) is pivotal in many biochemical functions and cytological processes. Dis-regulation of TUSC3 is frequently observed in epithelial cancers. In this study, we observed up-regulated TUSC3 expression at the mRNA and protein levels in clinical NSCLC samples compared with adjacent non-tumorous lung tissues. The expression level of TUSC3 is significantly correlated with tumour metastasis and patient survival...
May 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28483168/hedgehog-gli1-signaling-regelates-differentiation-of-chicken-gallus-gallus-embryonic-stem-cells-to-male-germ-cells
#11
Dong Li, Shaoze Cheng, Wenhui Zhang, Man Wang, Changhua Sun, Chen Zhang, Yilin Wang, Jing Jin, Yani Zhang, Bichun Li
Gli1 is an important signaling molecular in Hedgehog signaling pathway. In our study, we explored the adjustment effect of Hedgehog-Gli1 signaling pathway on chicken male germ cells differentiation based on the transcriptome-wide analyses of chicken ESCs, primordial germ cells (PGCs) and spermatogonia stem cells (SSCs) that were associated with male germ cell differentiation. We screened out Hedgehog signaling pathway and identified 8 candidated differentially expressed genes (DEGs), Wnt3a, Wnt16, Wnt8a, HHIPL1, Gli1, BMP6, BMP7 and TTLL4...
February 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28477008/combination-therapy-with-micellarized-cyclopamine-and-temozolomide-attenuate-glioblastoma-growth-through-gli1-down-regulation
#12
Yu-Jie Liu, Ying-Cong Ma, Wen-Jie Zhang, Zhen-Zhen Yang, De-Sheng Liang, Zhi-Fu Wu, Xian-Rong Qi
Glioblastoma multiforme (GBM) is the most common and deadly brain cancer, characterized by its aggressive proliferation to adjacent tissue and high recurrence rate. We studied the efficacy and related mechanisms of the combination of cyclopamine (Cyp, a Sonic-hedgehog pathway (Shh) inhibitor) and temozolomide (TMZ, the clinically most used chemotherapeutic agent) in anti-GBM treatment. The micellarized Cyp (MCyp) showed better performance than Cyp solution in inhibiting GBM cells proliferation (3.77-fold against U87 MG cells and 3...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28463091/curcumin-increases-efficiency-of-%C3%AE-irradiation-in-gliomas-by-inhibiting-hedgehog-signaling-pathway
#13
Xiangqi Meng, Jinquan Cai, Jichao Liu, Bo Han, Fei Gao, Weida Gao, Yao Zhang, Jinwei Zhang, Zhefeng Zhao, Chuanlu Jiang
It was reported that γ-irradiation had a controversial therapeutic effect on glioma cells. We aimed to investigate the cytotoxic effect on the glioma cells induced by γ-irradiation and explore the treatment to rescue the phenotype alteration of remaining cells. We used transwell assay to detect the glioma cell invasion and migration capacity. Cell proliferation and apoptosis were tested by the CCK-8 assay and flow cytometry respectively. Western Blot was used to detect the activity of Hedgehog signaling pathway and Epithelial-to-Mesenchymal Transition (EMT) status...
May 2, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28458545/role-of-hedgehog-gli1-signaling-in-the-enhanced-proliferation-and-differentiation-of-mg63-cells-enabled-by-hierarchical-micro-nanotextured-topography
#14
Yao Lin, Yinghe Huang, Junbing He, Feng Chen, Yanfang He, Wenying Zhang
Hedgehog-Gli1 signaling is evolutionarily conserved and plays an essential role in osteoblast proliferation and differentiation as well as bone formation. To evaluate the role of the Hedgehog-Gli1 pathway in the response of osteoblasts to hierarchical biomaterial topographies, human MG63 osteoblasts were seeded onto smooth, microstructured, and micro-/nanotextured topography (MNT) titanium to assess osteoblast proliferation and differentiation in terms of proliferative activity, alkaline phosphatase (ALP) production, and osteogenesis-related gene expression...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28457748/gli1-mesenchymal-stromal-cells-are-a-key-driver-of-bone-marrow-fibrosis-and-an-important-cellular-therapeutic-target
#15
Rebekka K Schneider, Ann Mullally, Aurelien Dugourd, Fabian Peisker, Remco Hoogenboezem, Paulina M H Van Strien, Eric M Bindels, Dirk Heckl, Guntram Büsche, David Fleck, Gerhard Müller-Newen, Janewit Wongboonsin, Monica Ventura Ferreira, Victor G Puelles, Julio Saez-Rodriguez, Benjamin L Ebert, Benjamin D Humphreys, Rafael Kramann
Bone marrow fibrosis (BMF) develops in various hematological and non-hematological conditions and is a central pathological feature of myelofibrosis. Effective cell-targeted therapeutics are needed, but the cellular origin of BMF remains elusive. Here, we show using genetic fate tracing in two murine models of BMF that Gli1(+) mesenchymal stromal cells (MSCs) are recruited from the endosteal and perivascular niche to become fibrosis-driving myofibroblasts in the bone marrow. Genetic ablation of Gli1(+) cells abolished BMF and rescued bone marrow failure...
April 13, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28446712/aspirin-inhibits-the-shh-gli1-signaling-pathway-and-sensitizes-malignant-glioma-cells-to-temozolomide-therapy
#16
Jianguang Ming, Bo Sun, Ziwei Li, Lin Lin, Xiangqi Meng, Bo Han, Ruijia Wang, Pengfei Wu, Jianlong Li, Jinquan Cai, Chuanlu Jiang
Aberrant activation of sonic hedgehog (SHH)/glioma-associated oncogene homolog 1 (GLI1) pathway plays an important role in the tumorigenicity of malignant glioma cells and resistance to temozolomide (TMZ). Here we investigated the aspirin's antineoplastic molecular route by targeting SHH/GLI1 pathway and examined the feasibility of aspirin combined with TMZ therapy. Western blot and quantitative real-time polymerase chain reaction (qRT-PCR) revealed that the activity of the SHH/GLI1 pathway was strongly inhibited by aspirin...
April 2017: Aging
https://www.readbyqxmd.com/read/28446294/-effect-of-hedgehog-signaling-pathway-abnormality-on-chemothe-rapeutic-resistance-of-multiple-myeloma
#17
Jia-Sheng Hu, Xiao Huang, Ying-Dan Huang, Yan-Yan Lu, Quan-Yi Lu
OBJECTIVE: To study the correlation between the excessive activation of Hedgehog signal and the drug resistance of multiple myeloma. METHODS: The resistant cell line RPMI 8226/R of multiple myeloma was established by an ascending concentration gradient method. The experiment consisted of 4 groups: RPMI8226/R, RPMI8226/S, GANT61+RPMI8226/R and GANT61+RPMI8226/S. The CCK-8 (cell counting kit-8) assay was used to detect the cell proliferation inhibition rate in 4 groups; the RT-PCR was used to detect the expression of Gli1, Gli2, Shh, Ihh, Smo and Sufu in the RPMI8226/S and RPMI8226/R cells...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28445928/regulation-of-angiogenic-behaviors-by-oxytocin-receptor-through-gli1-indcued-transcription-of-hif-1%C3%AE-in-human-umbilical-vein-endothelial-cells
#18
Ji Zhu, Huiyan Wang, Xiaoyan Zhang, Yin Xie
Angiogenesis is a dynamic hypoxia-stimulated process playing a key role in tissue growth and repair under various pathophysiological circumstances. Abnormal angiogenesis contributes to the pathogenesis of many human diseases. Oxytocin receptor is a classical G-protein-coupled receptor expressed on endothelial cells. The present study was aimed to investigate how oxytocin receptor regulated the angiogenic behaviors of human umbilical vein endothelial cells (HUVECs). We found that oxytocin at 0.1μM significantly increased cell proliferation, upregulated the mRNA and protein expression of CD31 and vWF (two important endothelial markers), and enhanced the tuber formation capacity in HUVECs...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28441382/hedgehog-signalling-pathway-orchestrates-angiogenesis-in-triple-negative-breast-cancers
#19
Concetta Di Mauro, Roberta Rosa, Valentina D'Amato, Paola Ciciola, Alberto Servetto, Roberta Marciano, Roberta Clara Orsini, Luigi Formisano, Sandro De Falco, Valeria Cicatiello, Maurizio Di Bonito, Monica Cantile, Francesca Collina, Angela Chambery, Bianca Maria Veneziani, Sabino De Placido, Roberto Bianco
BACKGROUND: Several evidences suggest a marked angiogenic dependency in triple-negative breast cancer (TNBC) tumorigenesis and a potential sensitivity to anti-angiogenic agents. Herein, the putative role of Hedgehog (Hh) pathway in regulating TNBC-dependent angiogenesis was investigated. METHODS: Expression and regulation of the Hh pathway transcription factor glioma-associated oncogene homolog1 protein (GLI1) were studied on the endothelial compartment and on TNBC-initiated angiogenesis...
May 23, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28429760/corrigendum-selective-targeting-of-hdac1-2-elicits-anticancer-effects-through-gli1-acetylation-in-preclinical-models-of-shh-medulloblastoma
#20
Sonia Coni, Anna Barbara Mancuso, Laura Di Magno, Giulia Sdruscia, Simona Manni, Silvia Maria Serrao, Dante Rotili, Eleonora Spiombi, Francesca Bufalieri, Marialaura Petroni, Monika Kusio-Kobialka, Enrico De Smaele, Elisabetta Ferretti, Carlo Capalbo, Antonello Mai, Pawel Niewiadomski, Isabella Screpanti, Lucia Di Marcotullio, Gianluca Canettieri
No abstract text is available yet for this article.
April 21, 2017: Scientific Reports
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