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Cell Proliferation

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https://www.readbyqxmd.com/read/28523736/hyper-activation-of-%C3%AE-catenin-signalling-induced-by-ikk%C3%AE%C2%B5-inhibition-thwarts-colorectal-cancer-cell-proliferation
#1
Jie Chen, Jun Zhao, Xuan Chen, Chengming Ding, Katie Lee, Zeming Jia, Yaoting Zhang, Yuzheng Zhou, Chaoying Wei, Jiantai He, Zanxian Xia, Jian Peng
OBJECTIVE: Aberrant activation of Wnt/β-catenin signalling contributes significantly to the development of human colorectal cancers and β-catenin is the key signalling molecule transducing canonical Wnt/β-catenin signalling. Therefore, β-catenin is a promising therapeutic target for cancer treatment. This study demonstrates that the oncogenic IKKε kinase phosphorylates β-catenin to restrain its hyper activation, therefore promoting colorectal cancer (CRC) cell proliferation. MATERIALS AND METHODS: IKKε and β-catenin expression levels in human colorectal cancer tissues and cell lines were analysed by immunohistochemical staining and Western blotting...
May 19, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28464433/linc00152-a-pivotal-oncogenic-long-non-coding-rna-in-human-cancers
#2
REVIEW
Yang Yu, Jian Yang, Quanpeng Li, Boming Xu, Yifan Lian, Lin Miao
In recent years, increasing evidence has shown the potential role of long non-coding RNAs (lncRNAs) in multiple cancers. Deregulation of lncRNAs was detected being closely associated with many kinds of tumours where they can act as a tumour suppressor or accelerator. LINC00152 was identified as an oncogene involved in many kinds of cancers, such as gastric cancer, hepatocellular carcinoma, colon cancer, gallbladder cancer and renal cell carcinoma. Moreover, inhibition of LINC00152 can suppress proliferation, migration and invasion of the cancer cells...
May 2, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28464358/mir-1297-regulates-neural-stem-cell-differentiation-and-viability-through-controlling-hes1-expression
#3
Jiaolin Zheng, Dan Yi, Xiaodong Shi, Huaizhang Shi
OBJECTIVES: Neural stem cells (NSCs) are self-renewing, undifferentiated and multipotent precursors that can generate neuronal and glial lineages. MicroRNAs (miRNAs) are small non-coding RNAs that act crucial roles in cell proliferation, differentiation and migration. However, the role of miR-1297 in the development of NSCs is still unknown. MATERIALS AND METHODS: Primary NSCs were isolated from rat's embryos. The expression of miR-1297 and Hes1 were measured by qRT-PCR...
May 2, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28394091/neuro-oncological-ventral-antigen-1-nova1-implications-in-neurological-diseases-and-cancers
#4
REVIEW
Yu Xin, Zheng Li, Heyi Zheng, Jeffery Ho, Matthew T V Chan, William K K Wu
Neuro-oncological ventral antigen 1 (NOVA1) is a RNA-binding protein that interacts with RNA containing repeats of the YCAY sequence. This protein is a brain-specific splicing factor regulating neuronal alternative splicing. It has been increasingly recognized as an important contributor to neurological disorders and carcinogenesis. In this review, we summarize the biological functions and pathological roles of NOVA1. The clinical implications of NOVA1 will also be discussed.
April 10, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28370690/heat-shock-transcription-factor-1-promotes-the-proliferation-migration-and-invasion-of-osteosarcoma-cells
#5
Zhenhua Zhou, Yan Li, Qi Jia, Zhiwei Wang, Xudong Wang, Jingjing Hu, Jianru Xiao
OBJECTIVES: Osteosarcoma is the most commonly diagnosed primary malignancy of bone and its overall survival rate is still very low. The molecular mechanisms underlying the progression of osteosarcoma have not been clearly illuminated. Heat shock transcription factor 1 (HSF1) is a key regulator of the heat shock response and also plays important roles in many cancers, but its function in osteosarcoma remains unexplored. MATERIALS AND METHODS: In this study, the proliferation of osteosarcoma cells was determined by Cell Counting Kit-8 assays and colony formation assays...
April 1, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28370734/apoptosis-and-cell-cycle-regulatory-effects-of-adenosine-by-modulation-of-gli-1-and-erk1-2-pathways-in-cd44-and-cd24-breast-cancer-stem-cells
#6
S M Jafari, H R Joshaghani, M Panjehpour, M Aghaei, N Zargar Balajam
OBJECTIVES: Breast cancer stem cells (CSCs) are a small population of tumour cells with the ability of self-renewal and resistance to chemotherapy. Targeting CSCs is a promising strategy for treatment of cancer. A recent study demonstrated that adenosine receptor agonists inhibit glioblastoma CSCs proliferation. At present, the effect of adenosine on breast CSCs has not been reported. Therefore, this study was designed to evaluate the effect of adenosine and its signalling pathways in breast CSCs...
March 29, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28319306/microrna-802-plays-a-tumour-suppressive-role-in-tongue-squamous-cell-carcinoma-through-directly-targeting-map2k4
#7
Xiaozhen Wu, Zuode Gong, Lanying Sun, Long Ma, Qibao Wang
OBJECTIVES: Tongue squamous cell carcinoma (TSCC) is the most common oral tumours. MicroRNAs play crucial roles in many cell processes including cell viability, development, apoptosis, migration and invasion. The role of miR-802 in the TSCC is still unknown. MATERIALS AND METHODS: The miR-802 expression in TSCC tissues and cell lines was determined by quantitative real-time polymerase chain reaction. CCK-8 assay was performed to measure the cell viability, while the cell invasion assay was used to determine the cell invasion...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28247446/the-clinical-significance-and-biological-function-of-large-tumour-suppressor-2-in-hepatocellular-carcinoma
#8
Rong Liang, Yan Lin, Chun-Ling Yuan, Zhi-Hui Liu, Yong-Qiang Li, Xiao-Ling Luo, Jia-Zhou Ye, Hai-Hong Ye
OBJECTIVES: Present evidence has suggested that large tumour suppressor 2 (LATS2) is abnormally expressed in most human cancer. However, the clinical and prognostic value in hepatocellular carcinoma (HCC) is still unknown. MATERIALS AND METHODS: Large tumour suppressor 2 mRNA and protein expression levels in HCC tissues and cell lines were detected by qRT-PCR, immunohistochemistry or Western blot. The correlation between LATS2 expression and clinicopathological factors was analysed through immunohistochemistry...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28244168/ccat2-a-novel-oncogenic-long-non-coding-rna-in-human-cancers
#9
REVIEW
Yu Xin, Zheng Li, Heyi Zheng, Matthew T V Chan, William Ka Kei Wu
Colon cancer-associated transcript 2 (CCAT2) was originally identified as an oncogenic long non-coding RNA in colorectal cancer. Since its discovery, the oncogenic role of CCAT2 has been increasingly demonstrated in human cancers. In this connection, CCAT2 upregulation is frequently reported and very often associated with tumour progression and poor clinical outcomes. Functionally, knockdown of CCAT2 could induce cancer cell apoptosis and suppress cell proliferation and invasiveness, suggesting that CCAT2 might be a therapeutic target...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28217977/mir-506-enhances-the-sensitivity-of-human-colorectal-cancer-cells-to-oxaliplatin-by-suppressing-mdr1-p-gp-expression
#10
Hui Zhou, Changwei Lin, Yi Zhang, Xiuzhong Zhang, Chong Zhang, Pengbo Zhang, Xingwang Xie, Zeqiang Ren
OBJECTIVES: Chemoresistance development represents a major obstacle to the successful treatment of colorectal cancer (CRC). The aim of this study was to elucidate the mechanism by which miR-506 reverses oxaliplatin chemoresistance in CRC. METHODS: In this study, miR-506 levels were measured in 74 patients with colon cancer via quantitative real-time polymerase chain reaction (qRT-PCR) and in situ hybridization (ISH). We subsequently analysed the relationship between miR-506 expression and CRC patient survival via the Kaplan-Meier method...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28217951/cytotoxic-effect-of-zinc-oxide-nanoparticles-on-murine-photoreceptor-cells-via-potassium-channel-block-and-na-k-atpase-inhibition
#11
Chao Chen, Wenjuan Bu, Hongyan Ding, Qin Li, Dabo Wang, Hongsheng Bi, Dadong Guo
OBJECTIVE: Zinc oxide (ZnO) nanoparticles can exhibit toxicity towards organisms and oxidative stress is often hypothesized to be one of the most important factors. Nevertheless, the detailed mechanism of toxicity-induced by ZnO nanoparticles has not been completely addressed. The present study aimed to investigate the toxic effects of ZnO nanoparticles on the expression and activity of Na(+) /K(+) -ATPase and on potassium channel block. MATERIALS AND METHODS: In the present study, we explored the cytotoxic effect of ZnO nanoparticles on murine photoreceptor cells using lactate dehydrogenase (LDH) release assay, reactive oxygen species (ROS) determination, mitochondrial membrane potential (Δφm) measurement, delayed rectifier potassium current recordings and Na(+) /K(+) -ATPase expression and activity monitoring...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28205330/effect-of-matrix-stiffness-on-osteoblast-functionalization
#12
Tao Zhang, Shiyu Lin, Xiaoru Shao, Qi Zhang, Changyue Xue, Shu Zhang, Yunfeng Lin, Bofeng Zhu, Xiaoxiao Cai
OBJECTIVES: Stiffness of bone tissue differs response to its physiological or pathological status, such as osteoporosis or osteosclerosis. Consequently, the function of cells residing in bone tissue including osteoblasts (OBs), osteoclasts and osteocytes will be affected. However, to the best of our knowledge, the detailed mechanism of how extracellular matrix stiffness affects OB function remains unclear. MATERIALS AND METHODS: We conducted a study that exposed rat primary OBs to polydimethylsiloxane substrates with varied stiffness to investigate the alterations of cell morphology, osteoblastic differentiation and its potential mechanism in mechanotransduction...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28205268/the-effect-of-delta-like-1-homologue-on-the-proliferation-and-odontoblastic-differentiation-in-human-dental-pulp-stem-cells
#13
Shengcai Qi, Yanhong Yan, Yue Wen, Jialiang Li, Jing Wang, Fubo Chen, Xiaoshan Tang, Guangwei Shang, Yuanzhi Xu, Raorao Wang
INTRODUCTION: This study aimed to investigate the functions of delta-like homologue 1 (DLK1) in the proliferation and differentiation of human dental pulp stem cells (hDPSCs). METHODS: Immunohistochemical analysis was used to determine the expression of alkaline phosphatase (ALP), dentin sialophosphoprotein (DSPP), DLK1, NOTCH1 and p-ERK1/2 in the mouse first maxillary molar. Recombinant lentivirus was constructed to overexpress DLK1 stably in hDPSCs. The cell viability and proliferation of hDPSCs were examined by CCK8 and EdU incorporation assay respectively...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28145066/analysis-of-gene-expression-profiles-between-apical-papilla-tissues-stem-cells-from-apical-papilla-and-cell-sheet-to-identify-the-key-modulators-in-mscs-niche
#14
Shu Diao, Xiao Lin, Liping Wang, Rui Dong, Juan Du, Dongmei Yang, Zhipeng Fan
OBJECTIVES: The microenvironmental niche plays the key role for maintaining the cell functions. The stem cells from apical papilla (SCAPs) are important for tooth development and regeneration. However, there is limited knowledge about the key factors in niche for maintaining the function of SCAPs. In this study, we analyse the gene expression profiles between apical papilla tissues, SCAPs and SCAPs cell sheet to identify the key genes in SCAPs niche. MATERIALS AND METHODS: Microarray assays and bioinformatic analysis were performed to screen the differential genes between apical papilla tissues and SCAPs, and SCAPs and SCAPs cell sheet...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28133828/a-defined-mix-of-cytokines-mimics-conditioned-medium-from-cultures-of-bone-marrow-derived-mesenchymal-stem-cells-and-elicits-bone-regeneration
#15
Wataru Katagiri, Kohei Sakaguchi, Takamasa Kawai, Yukiko Wakayama, Masashi Osugi, Hideharu Hibi
OBJECTIVES: We previously reported that conditioned medium from cultures of bone marrow-derived mesenchymal stem cells have strong potential to accelerate bone regeneration. We now examine in vitro and in vivo a defined cytokine cocktail that mimics the effects of conditioned medium on bone regeneration. MATERIALS AND METHODS: A cocktail of recombinant human insulin-like growth factor-1, vascular endothelial growth factor-A and transforming growth factor-β1 was prepared at concentrations similar to those in conditioned medium...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28071833/co-culture-with-macrophages-enhances-the-clonogenic-and-invasion-activity-of-endometriotic-stromal-cells
#16
Rachel W S Chan, Cheuk-Lun Lee, Ernest H Y Ng, William S B Yeung
OBJECTIVE: To study the effect on endometrial and endometriotic cells after co-culture with macrophages, using clonogenic, invasion and self-renewal assays. MATERIALS AND METHODS: Peripheral blood samples, endometrium and endometriotic tissues were collected. Autologous macrophages were co-cultured with endometrial and endometriotic cells. The number of colony-forming units (CFU), invasiveness and self-renewal activity after co-culture with macrophages were determined...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/27981756/maternal-diabetes-modulates-offspring-cell-proliferation-and-apoptosis-during-odontogenesis-via-the-tlr4-nf-%C3%AE%C2%BAb-signalling-pathway
#17
Guoqing Chen, Wenhua Sun, Yan Liang, Tian Chen, Weihua Guo, Weidong Tian
OBJECTIVES: Maternal gestational diabetes leads to an adverse in utero environment and increases the risk of malformations during embryo organogenesis. In the present study, we analysed the effects of maternal diabetes on tooth germ cell proliferation and apoptosis in offspring, and investigated their underlying mechanisms. MATERIALS AND METHODS: A rat model of maternal diabetes was induced by intraperitoneal injection of streptozotocin and the pregnant rats were divided into three groups: controls, the diabetic group and diabetic group with insulin treatment...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/27910163/serum-amyloid-a-an-acute-phase-protein-stimulates-proliferative-and-proinflammatory-responses-of-keratinocytes
#18
Ning Yu, Shujie Zhang, Jiajing Lu, Ying Li, Xuemei Yi, Li Tang, Lina Su, Yangfeng Ding
OBJECTIVES: Serum amyloid A (SAA), an acute phase protein, is highly expressed in psoriatic lesions but its function is not fully understood. The aim of this study was to explore its role in activation of keratinocytes. MATERIALS AND METHODS: Real-time PCR and immunofluorescence were performed to examine SAA expression in imiquimod (IMQ)-induced psoriasis-like mice. In vivo function of SAA was examined by treating psoriasis-like mice with SAA neutralising antibody...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/27910161/mir-29a-regulates-vascular-neointimal-hyperplasia-by-targeting-yy1
#19
Yu Zhang, Yong Hui Li, Chao Liu, Chan-Juan Nie, Xin-Hua Zhang, Cui-Ying Zheng, Wen Jiang, Wei-Na Yin, Ming-Hui Ren, Yu-Xin Jin, Shu-Feng Liu, Bin Zheng, Jin-Kun Wen
OBJECTIVES: The formation of vascular neointima is mainly related to impairment of the vascular endothelial barrier and abnormal proliferation and migration of smooth muscle cells. The objective of this study was to investigate whether miR-29a exerts any promoting effect on the vascular neointimal hyperplasia and if so, its mechanism. MATERIALS AND METHODS: RT-qPCR was performed to determine expression of miR-29a in vascular smooth muscle cells (VSMC) and vascular neointimal hyperplasia...
June 2017: Cell Proliferation
https://www.readbyqxmd.com/read/27868262/adipocytes-enhance-expression-of-osteoclast-adhesion-related-molecules-through-the-cxcl12-cxcr4-signalling-pathway
#20
Tingting Luo, Hongrui Liu, Wei Feng, Di Liu, Juan Du, Jing Sun, Wei Wang, Xiuchun Han, Jie Guo, Norio Amizuka, Xianqi Li, Minqi Li
OBJECTIVES: The purpose of this study was to investigate effects of adipocytes on osteoclast adhesion-related molecules. MATERIALS AND METHODS: ST2 cells, a cloned stromal cell line from mouse bone marrow, able to differentiate into adipocytes, were cultured in serum-free α-MEM which was then collected to be used as adipocyte-conditioned medium (ADIPO CM). RAW264.7 cells were cultured in ADIPO CM in the presence of RANKL, and bone marrow-derived macrophages were cultured in ADIPO CM in the presence of RANKL and macrophage-colony stimulating factor to induce osteoclast differentiation...
June 2017: Cell Proliferation
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