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https://www.readbyqxmd.com/read/29053988/intermedin-reduces-neointima-formation-by-regulating-vascular-smooth-muscle-cell-phenotype-via-camp-pka-pathway
#1
Qing Zhu, Xian-Qiang Ni, Wei-Wei Lu, Jin-Sheng Zhang, Jin-Ling Ren, Di Wu, Yao Chen, Lin-Shuang Zhang, Yan-Rong Yu, Chao-Shu Tang, Yong-Fen Qi
BACKGROUND AND AIMS: Vascular smooth muscle cell (VSMC) dedifferentiation contributes to neointima formation, which results in various vascular disorders. Intermedin (IMD), a cardiovascular paracrine/autocrine polypeptide, is involved in maintaining circulatory homeostasis. However, whether IMD protects against neointima formation remains largely unknown. The purpose of this study is to investigate the role of IMD in neointima formation and the possible mechanism. METHODS: IMD1-53 (100ng/kg/h) or saline water was used on rat carotid-artery balloon-injury model...
October 9, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29052243/wnt-%C3%AE-catenin-signalling-pathway-mediated-aberrant-hippocampal-neurogenesis-in-kainic-acid-induced-epilepsy
#2
Zhengyi Qu, Fang Su, Xueting Qi, Jianbo Sun, Hongcai Wang, Zhenkui Qiao, Hong Zhao, Yulan Zhu
Temporal lobe epilepsy is a chronic disorder of nerve system, mainly characterized by hippocampal sclerosis with massive neuronal loss and severe gliosis. Aberrant neurogenesis has been shown in the epileptogenesis process of temporal lobe epilepsy. However, the molecular mechanisms underlying aberrant neurogenesis remain unclear. The roles of Wnt signalling cascade have been well established in neurogenesis during multiple aspects. Here, we used kainic acid-induced rat epilepsy model to investigate whether Wnt/β-catenin signalling pathway is involved in the aberrant neurogenesis in temporal lobe epilepsy...
October 19, 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/29047233/overexpression-of-mir-191-predicts-poor-prognosis-and-promotes-proliferation-and-invasion-in-esophageal-squamous-cell-carcinoma
#3
Xiaotian Gao, Zhanqiang Xie, Zhigang Wang, Keluo Cheng, Ke Liang, Zeqing Song
PURPOSE: Accumulating evidence has shown that dysregulation of microRNA-191 (miR-191) is closely associated with tumorigenesis and progression in a wide range of cancers. This study aimed to explore the potential role of miR-191 in esophageal squamous cell carcinoma (ESCC). MATERIALS AND METHODS: miR-191 expression was assessed in 93 ESCC tissue specimens by real-time polymerase chain reaction, and survival analysis was performed via Kaplan-Meier and Cox regression analyses...
November 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29045972/-acetylsalicylic-acid-treatment-enhanced-immunomodulatory-function-of-mesenchymal-stem-cells-derived-from-gingiva
#4
R L Yang, T T Yu, Y H Zhou
OBJECTIVE: To analyze the role of acetylsalicylic acid (ASA) in immunomodulation of mesenchymal stem cells derived from gingiva (GMSCs), and to explore the role of ASA in enhancing the immumomodulation of GMSCs and the capacity of GMSCs to treat immune disorders and the underlying mechanism. METHODS: Flow cytometry analysis were used to analyze the role of ASA in the expression of stem cells surface markers CD146, CD105, CD90, CD34 and CD45 in GMSCs,and the GMSCs proliferation was analyzed by 5-bromo-2-deoxyuridine (BrdU) staining and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29043628/strand-specific-analysis-of-dna-synthesis-and-proteins-association-with-dna-replication-forks-in-budding-yeast
#5
Chuanhe Yu, Haiyun Gan, Zhiguo Zhang
DNA replication initiates at DNA replication origins after unwinding of double-strand DNA(dsDNA) by replicative helicase to generate single-stranded DNA (ssDNA) templates for the continuous synthesis of leading-strand and the discontinuous synthesis of lagging-strand. Therefore, methods capable of detecting strand-specific information will likely yield insight into the association of proteins at leading and lagging strand of DNA replication forks and the regulation of leading and lagging strand synthesis during DNA replication...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29043627/quantitative-bromodeoxyuridine-immunoprecipitation-analyzed-by-high-throughput-sequencing-qbrdu-seq-or-qbu
#6
Joanna E Haye-Bertolozzi, Oscar M Aparicio
Incorporation into DNA of nucleoside analogs like 5-bromo-2'-deoxyuridine (BrdU) is a powerful tool for in vivo studies of DNA synthesis during replication and repair. Immunoprecipitation of BrdU-labeled DNA analyzed by DNA sequencing (BrdU-IP-seq) allows for genome-wide, sequence-specific tracking of replication origin and replication fork dynamics under different conditions, such as DNA damage and replication stress, and in mutant strains. We have recently developed a quantitative method for BrdU-IP-seq (qBrdU-seq) involving DNA barcoding to enable quantitative analysis of multiple experimental samples subjected to BrdU-IP-seq...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29042220/long-noncoding-rna-uc-173-promotes-renewal-of-the-intestinal-mucosa-by-inducing-degradation-of-microrna-195
#7
Lan Xiao, Jing Wu, Jun-Yao Wang, Hee Kyoung Chung, Sudhakar Kalakonda, Jaladanki N Rao, Myriam Gorospe, Jian-Ying Wang
BACKGROUND AND AIM: s: The mammalian intestinal epithelium self renews rapidly and homeostasis is preserved via tightly controlled mechanisms. Long noncoding RNAs transcribed from ultraconserved regions (T-UCRs) control different cell functions, but little is known about their role in maintaining the integrity of the intestinal epithelium. We searched for T-UCRs that regulate growth of the intestinal mucosa and investigated the mechanism by which T-UCR uc.173 regulates epithelial renewal...
October 14, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29039101/methods-for-analysis-of-nanoparticle-immunosuppressive-properties-in-vitro-and-in-vivo
#8
Timothy M Potter, Barry W Neun, Marina A Dobrovolskaia
Adverse drug effects on the immune system function represent a significant concern in the pharmaceutical industry, because 10-20% of the drug withdrawal from the market is accounted to immunotoxicity. Immunosuppression is one such adverse effect. The traditional immune function test used to estimate materials' immunosuppression is a T-cell-dependent antibody response (TDAR). This method involves a 28 day in vivo study evaluating the animal's antibody titer to a known antigen (KLH) with and without challenge...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29033188/ppp1cc-is-associated-with-astrocyte-and-microglia-proliferation-after-traumatic-spinal-cord-injury-in-rats
#9
Xiaojuan Liu, Shen Huang, Chun Liu, Xia Liu, Yuntian Shen, Zhiming Cui
Reactive astrogliosis and microgliosis after spinal cord injury (SCI) contribute to glial scar formation that impedes axonal regeneration. The mechanisms underlying reactive astrocyte and microglia proliferation upon injury remain partially understood. Protein phosphatase 1, catalytic subunit, gamma isozyme (PPP1CC) participates in cell proliferation, differentiation and apoptosis. However, the expression and functions of PPP1CC following SCI are still unknown. In this study, an acute spinal cord contusion injury model in adult rats was established to investigate the potential role of PPP1CC during the pathological process of SCI...
September 28, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29030818/identifying-quiescent-stem-cells-in-hair-follicles
#10
Christine N Rodriguez, Hoang Nguyen
Hair follicle stem cells (HFSCs) are noted for their relative quiescence and therefore can be distinguished from other cells by their differential history of cell division. Replicating cells can be labeled by pulsing the animals repeatedly with 5-bromo-2'-deoxyuridine (BrdU) or tritiated thymidine ([(3)H]TdR), thymidine analogs that get incorporated into DNA during DNA synthesis. Because dividing cells dilute the label after each cell division, frequently dividing cells will lose the label over time while slow cycling cells will retain the label and thus are termed label retaining cells (LRCs)...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29030815/detecting-hematopoietic-stem-cell-proliferation-using-brdu-incorporation
#11
Katie A Matatall, Claudine S Kadmon, Katherine Y King
Cellular quiescence is a key component of hematopoietic stem cell (HSC) homeostasis; therefore, a reliable method to measure HSC cell division is critical in many studies. However, measuring the proliferation rate of largely quiescent and rare populations of cells can be challenging. Bromo-deoxyuridine (BrdU) incorporation into replicating DNA is a commonly used and highly reproducible method to detect cell division history. Here, we describe a protocol for BrdU incorporation analysis in hematopoietic stem and progenitor cells that can provide a sensitive measure of cell division even in rare cell populations...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29030097/transient-vimentin-expression-during-the-embryonic-development-of-the-chicken-cerebellum
#12
Vasiliki Kommata, Catherine R Dermon
Complex morphogenetic events, critical for the development of normal cerebellum foliation and layering, are known to involve type III intermediate filament protein such as vimentin expressed by Bergmann glia. The present study aimed to determine aspects of intermediate and late embryonic pattern of vimentin expression during the corticogenesis of chicken cerebellum at embryonic days 10-19 (E10-E19), using single and double immunohistochemistry/immunofluorescence. Vimentin expression showed partial co-localization with the glial markers GFAP and BLBP...
October 13, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29029852/human-adipose-tissue-derived-stem-cells-inhibit-the-activity-of-keloid-fibroblasts-and-fibrosis-in-a-keloid-model-by-paracrine-signaling
#13
Jianlan Liu, Jie Ren, Lina Su, Shimeng Cheng, Jing Zhou, Xiaolu Ye, Yabin Dong, Silei Sun, Fazhi Qi, Zhifei Liu, Jonathon Pleat, Hongjun Zhai, Ningwen Zhu
BACKGROUND: Human adipose tissue-derived mesenchymal stem cells (ASCs) have potential utility as modulators of the regeneration of tissue that is inflamed or scarred secondary to injuries such as burns or trauma. However, the effect of ASCs on one particular type of scarring, keloidal disease, remains unknown. The absence of an optimal model for investigation has hindered the development of an effective therapy using ASCs for keloids. OBJECTIVE: To investigate the influence of ASCs on angiogenesis, extracellular matrix deposition, and inflammatory cell influx in keloids...
October 10, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29024939/ailanthone-inhibits-non-small-cell-lung-cancer-cell-growth-through-repressing-dna-replication-via-downregulating-rpa1
#14
Zhongya Ni, Chao Yao, Xiaowen Zhu, Chenyuan Gong, Zihang Xu, Lixin Wang, Suyun Li, Chunpu Zou, Shiguo Zhu
BACKGROUND: The identification of bioactive compounds from Chinese medicine plays a crucial role in the development of novel reagents against non-small lung cancer (NSCLC). METHODS: High throughput screening assay and analyses of cell growth, cell cycle, apoptosis, cDNA microarray, BrdU incorporation and gene expression were performed. RESULTS: Ailanthone (Aila) suppressed NSCLC cell growth and colony formation in vitro and inhibited NSCLC tumour growth in subcutaneously xenografted and orthotopic lung tumour models, leading to prolonged survival of tumour-bearing mice...
October 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29018405/chimeric-peptide-tat-ha-nr2b9c-improves-regenerative-repair-after-transient-global-ischemia
#15
Hai-Hui Zhou, Li Zhang, Hai-Xia Zhang, Jin-Ping Zhang, Wei-Hong Ge
Transient global ischemia (TGI) is a major public health problem, and it heightens the need of effective treatments. The present study was undertaken to investigate whether recombinant polypeptide Tat-HA-NR2B9c improves spatial learning and memory deficits in rats after TGI. Rats were subjected to 20-min ischemia induced by four-vessel occlusion (4-VO) method and daily injected with Tat-HA-NR2B9c (1.12 mg/kg) for 1 week. Tat-HA-NR2B9c increased CREB activity, upregulated B-cell lymphoma-2 (Bcl-2) expression after treated for 24 h...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29018080/chd7-deficiency-delays-leukemogenesis-in-mice-induced-by-cbfb-myh11
#16
Tao Zhen, Erika Kwon, Ling Zhao, Jingmei Hsu, R Katherine Hyde, Ying Lu, Lemlem Alemu, Nancy A Speck, P Paul Liu
Inversion of chromosome 16 is a consistent finding in patients with acute myeloid leukemia subtype M4 with eosinophilia (AML M4Eo), which generates a CBFB-MYH11 fusion gene. Previous studies showed that the interaction between CBFβ-SMMHC (encoded by CBFB-MYH11) and RUNX1 plays a critical role in the pathogenesis of this leukemia. Recently, it was shown that chromodomain-helicase-DNA binding protein 7 (CHD7) interacts with RUNX1 and suppresses RUNX1-induced expansion of hematopoietic stem and progenitor cells...
October 10, 2017: Blood
https://www.readbyqxmd.com/read/28993144/microrna-139-inhibits-the-proliferation-and-migration-of-osteosarcoma-cells-via-targeting-forkhead-box-p2
#17
Chunan Zhong, Jijun Liu, Yuzhe Zhang, Jianping Luo, Jia Zheng
AIMS: Osteosarcoma (OS) is the most common primary bone malignancy that affects adolescents. Although great attention has been paid to the diagnosis of and therapy for OS, the 5-year survival rate of patients with this disease remains poor. MicroRNAs are small non-coding RNAs involved in pathogenesis and progression of human malignancies. MiR-139 has been implicated in several human cancers. However, the role played by miR-139 in pathogenesis of human OS has remained largely unknown. MAIN METHODS: Realtime PCR was used to detect the expression of miR-139...
October 6, 2017: Life Sciences
https://www.readbyqxmd.com/read/28992883/comparative-study-of-the-effects-of-terlipressin-versus-splenectomy-on-liver-regeneration-after-partial-hepatectomy-in-rats
#18
Tom Florian Ulmer, Anne Weiland, Georg Lurje, Christian Klink, Anne Andert, Hamid Alizai, Christoph Heidenhain, Ulf Neumann
BACKGROUND: Post-hepatectomy liver failure as a result of insufficient liver remnant is a feared complication in liver surgery. Efforts have been made to find new strategies to support liver regeneration. The aim of this study was to investigate the effects of terlipressin versus splenectomy on postoperative liver function and liver regeneration in rats undergoing 70% partial hepatectomy. METHODS: Seventy-two male Wistar rats were randomly assigned into three groups (n=24 in each group): 70% partial hepatectomy as control (PHC), 70% partial hepatectomy with splenectomy (PHS) or 70% partial hepatectomy with a micropump for terlipressin administration (PHT)...
October 15, 2017: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/28986650/expression-of-stem-cell-factors-in-the-adult-sea-cucumber-digestive-tube
#19
Vladimir Mashanov, Olga Zueva, Daria Mashanova, José E García-Arrarás
Homeostatic cell turnover has been extensively characterized in mammals. In their adult tissues, lost or aging differentiated cells are replenished by a self-renewing cohort of stem cells. The stem cells have been particularly well studied in the intestine and are clearly identified by the expression of marker genes including Lgr5 and Bmi1. It is, however, unknown if the established principles of tissue renewal learned from mammals would be operating in non-mammalian systems. Here, we study homeostatic cell turnover in the sea cucumber digestive tube, the organ with high tissue plasticity even in adult animals...
October 7, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28984196/multitype-bellman-harris-branching-model-provides-biological-predictors-of-early-stages-of-adult-hippocampal-neurogenesis
#20
Biao Li, Amanda Sierra, Juan Jose Deudero, Fatih Semerci, Andrew Laitman, Marek Kimmel, Mirjana Maletic-Savatic
BACKGROUND: Adult hippocampal neurogenesis, the process of formation of new neurons, occurs throughout life in the hippocampus. New neurons have been associated with learning and memory as well as mood control, and impaired neurogenesis has been linked to depression, schizophrenia, autism and cognitive decline during aging. Thus, understanding the biological properties of adult neurogenesis has important implications for human health. Computational models of neurogenesis have attempted to derive biologically relevant knowledge, hard to achieve using experimentation...
October 3, 2017: BMC Systems Biology
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