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Cell Proliferation

Yuanhao Zhang, Xiuwei Pan, Zhen Shi, Haibo Cai, Yun Gao, Weian Zhang
OBJECTIVES: Stem cell factor (SCF) is considered as a commonly indispensable cytokine for proliferation of haematopoietic stem cells (HSCs), which is used in large dosages during ex vivo culture. The work presented here aimed to reduce the consumption of SCF by sustained release but still support cells proliferation and maintain the multipotency of HSCs. MATERIALS AND METHODS: Stem cell factor was physically encapsulated within a hyaluronic acid/gelatin double network (HGDN) hydrogel to achieve a slow release rate...
November 15, 2017: Cell Proliferation
Zheng Li, Bo Yang, Xisheng Weng, Gary Tse, Matthew T V Chan, William Ka Kei Wu
Osteonecrosis of the femoral head (ONFH) is one of the most common orthopaedic diseases. The exact pathogenic mechanism of ONFH is still unknown. MicroRNAs (miRNAs) are a class of non-coding RNAs that negatively modulate gene expression at post-transcriptional level. An increasing number of studies have shown that miRNAs play crucial roles in different physiological processes, including development, cell proliferation, differentiation and metabolism. Recently, multiple studies demonstrated that miRNAs are involved in the pathogenesis of ONFH...
November 12, 2017: Cell Proliferation
Kelin She, Hui Yan, Jun Huang, Huaping Zhou, Jianxing He
OBJECTIVES: Long non-coding RNAs have identified to involve into the tumour cell proliferation, apoptosis and metastasis. We previously found that up-regulated LncRNA-SNHG7 (SNHG7) positively correlated to the Fas apoptosis inhibitory molecule 2 (FAIM2) in lung cancer cells with unclear mechanism. METHODS: Non-small cell lung cancer (NSCLC) and relative normal tissues (n = 25) were collected. The SNHG7 expression and function in NSCLC was determined. The SNHG7-miR 193b-FAIM2 network was analysed in vitro and vivo...
November 12, 2017: Cell Proliferation
Jia Wang, Fengzhen Wang, Zhuojun Wang, Shulin Li, Lu Chen, Caixia Liu, Dong Sun
OBJECTIVES: Amniotic fluid-derived stem cells (AFSCs) possessing multilineage differentiation potential are proposed as a novel and accessible source for cell-based therapy and tissue regeneration. Glial-derived neurotrophic factor (GDNF) has been hypothesized to promote the therapeutic effect of AFSCs on markedly ameliorating renal dysfunction. The aim of this study was to investigate whether AFSCs equipped with GDNF (GDNF-AFSCs) had capabilities of attenuating mouse renal tubular epithelial cells (mRTECs) apoptosis and evaluate its potential mechanisms...
November 7, 2017: Cell Proliferation
Claudia C Friedrich, Yunfeng Lin, Alexander Krannich, Yinan Wu, Joseph P Vacanti, Craig M Neville
OBJECTIVES: Creation of functional, durable vasculature remains an important goal within the field of regenerative medicine. Engineered biological vasculature has the potential to restore or improve human tissue function. We hypothesized that the pleotropic effects of insulin-like growth factor 1 (IGF1) would enhance the engineering of capillary-like vasculature. MATERIALS AND METHODS: The impact of IGF1 upon vasculogenesis was examined in in vitro cultures for a period of up to 40 days and as subcutaneous implants within immunodeficient mice...
November 7, 2017: Cell Proliferation
Zheng Li, Xingye Li, Chao Jiang, Wenwei Qian, Gary Tse, Matthew T V Chan, William K K Wu
Rheumatoid arthritis, a disabling autoimmune disease, is associated with altered gene expression in circulating immune cells and synovial tissues. Accumulating evidence has suggested that long non-coding RNAs (lncRNAs), which modulate gene expression through multiple mechanisms, are important molecules involved in immune and inflammatory pathways. Importantly, many studies have reported that lncRNAs can be utilized as biomarkers for disease diagnosis and prognostication. Recently, dysregulation of lncRNAs in rheumatoid arthritis and other autoimmune diseases has been revealed...
November 7, 2017: Cell Proliferation
Dejuan Sun, Lingjuan Zhu, Yuqian Zhao, Yingnan Jiang, Lixia Chen, Yang Yu, Liang Ouyang
OBJECTIVES: Triple negative breast cancer (TNBC) is a complex and intrinsically aggressive tumour with poor prognosis, and the discovery of targeted small-molecule drugs for TNBC treatment still remains in its infancy. In this study, we aimed to discover a small-molecule agent for TNBC treatment and illuminate its potential mechanisms. MATERIALS AND METHODS: Cell viability was detected by using methylthiazoltetrazolium (MTT) assay. Electron microscopy, GFP-LC3 transfection, monodansylcadaverine staining and apoptosis assay were performed to determine Fluoxetine-induced autophagy and apoptosis...
November 1, 2017: Cell Proliferation
Yiqi Deng, Lingjuan Zhu, Haoyang Cai, Guan Wang, Bo Liu
OBJECTIVES: Autophagy, a highly conserved lysosomal degradation process in eukaryotic cells, can digest long-lived proteins and damaged organelles through vesicular trafficking pathways. Nowadays, mechanisms of autophagy have been gradually elucidated and thus the discovery of small-molecule drugs targeting autophagy has always been drawing much attention. So far, some autophagy-related web servers have been available online to facilitate scientists to obtain the information relevant to autophagy conveniently, such as HADb, CTLPScanner, iLIR server and ncRDeathDB...
November 1, 2017: Cell Proliferation
Fuyou Zhang, Jianfa Li, Huizhong Xiao, Yifan Zou, Yuchen Liu, Weiren Huang
Long non-coding RNAs (lncRNAs), a group of non-protein-coding RNAs with more than 200 nucleotides in length, are involved in multiple biological processes, such as the proliferation, apoptosis, migration and invasion. Moreover, numerous studies have shown that lncRNAs play important roles as oncogenes or tumour suppressor genes in human cancers. In this paper, we concentrate on actin filament-associated protein 1-antisense RNA 1 (AFAP1-AS1), a well-known long non-coding RNA that is overexpressed in various tumour tissues and cell lines, including oesophageal cancer, pancreatic ductal adenocarcinoma, nasopharyngeal carcinoma, lung cancer, hepatocellular carcinoma, ovarian cancer, colorectal cancer, biliary tract cancer and gastric cancer...
October 22, 2017: Cell Proliferation
Rongman Xu, Xiangdong Zhao, Yuanyuan Zhao, Bin Chen, Li Sun, Changgen Xu, Bo Shen, Mei Wang, Wenrong Xu, Wei Zhu
OBJECTIVES: Gastric cancer mesenchymal stem cells (GC-MSCs) can promote the development of tumour growth. The tumour-promoting role of tumour-associated MSCs and T cells has been demonstrated. T cells as the major immune cells may influence and induce a pro-tumour phenotype in MSCs. This study focused on whether CD4(+) T cells can affect GC-MSCs to promote gastric cancer growth. MATERIALS AND METHODS: CD4(+) T cells upregulation of programmed death ligand 1 (PD-L1) expression in GC-MSCs through the phosphorylated signal transducer and activator of transcription (p-STAT3) signalling pathway was confirmed by immunofluorescence, western blotting and RT-PCR...
October 22, 2017: Cell Proliferation
Qianmin Ou, Xiaoxiao Wang, Yanlan Wang, Yan Wang, Xuefeng Lin
OBJECTIVES: During long-term culture, loss of stemness is observed which greatly restricts the application of human periodontal ligament stem cells (hPDLSCs) in tissue regeneration. Oestrogen (E2) was found to significantly enhance the proliferation and osteogenic differentiation capacity in mesenchymal stem cells. Therefore, in this study, we investigated effects of E2 on hPDLSCs stemness in long-term culture. MATERIALS AND METHODS: Effects of E2 on hPDLSCs stemness were systematically evaluated...
October 12, 2017: Cell Proliferation
Dan-Dan Zhou, Xiu-Fen Liu, Cheng-Wei Lu, Om Prakash Pant, Xiao-Dong Liu
The digestive system cancers are leading cause of cancer-related death worldwide, and have high risks of morbidity and mortality. More and more long non-coding RNAs (lncRNAs) have been studied to be abnormally expressed in cancers and play a key role in the process of digestive system tumour progression. Plasmacytoma variant translocation 1 (PVT1) seems fairly novel. Since 1984, PVT1 was identified to be an activator of MYC in mice. Its role in human tumour initiation and progression has long been a subject of interest...
October 12, 2017: Cell Proliferation
Xiaohai Wang, Yongzhi Xu, Xingjie Wang, Chenyi Jiang, Sha Han, Kai Dong, Mengjun Shen, Shujie Xia, Dongliang Xu
OBJECTIVES: Previously, we found that long intergenic non-coding RNA-p21 (lincRNA-p21) inhibited the development of human prostate cancer. However, the underlying molecular mechanisms are poorly understood. Here, we attempted to investigate the downstream targets of lincRNA-p21 in prostate cancer. MATERIALS AND METHODS: Expression of lincRNA-p21 and PKM2 was determined by qRT-PCR and Western blot. Lentivirus expressing shPKM2 or shCtrl was used to explore the role of PKM2 on the enhanced cell proliferation and glycolysis of lincRNA-p21-silenced prostate cancer cells...
October 9, 2017: Cell Proliferation
A B Trindade, J Therrien, J M Garcia, L C Smith
OBJECTIVES: Recent studies have reported the existence of stem cells in ovarian tissue that show enhanced proliferative and differentiation potential compared to other adult tissues. Based on this evidence, we hypothesized that ovarian tissue contained mesenchymal-like stem cells (MSC) that could be isolated using a novel rapid plastic adhesion technique. MATERIALS AND METHODS: We established MSC lines derived from ovarian and adipose tissue based on their ability to rapidly adhere to plastic culture dishes in the first 3 hours after plating and studied their potentiality in terms of molecular markers and differentiation capacity...
October 8, 2017: Cell Proliferation
Yawei Zhao, Lianzhi Cui, Yue Pan, Dan Shao, Xiao Zheng, Fan Zhang, Hansi Zhang, Kan He, Li Chen
OBJECTIVES: Cytotoxic chemotherapy is an effective and traditional treatment of ovarian cancer. However, chemotherapy-induced apoptosis may also trigger and ultimately accelerate the repopulation of the small number of adjacent surviving cells. This study mainly focused on the tumour cell repopulation caused by chemotherapy in ovarian cancer and the adjunctive/synergistic effect of Berberine on the prevention of tumour repopulation. MATERIALS AND METHODS: The transwell system was used to mimic the co-culture of surviving ovarian cancer cells in the microenvironment of cytotoxic chemotherapy-treated dying cells...
October 8, 2017: Cell Proliferation
Qun Zhou, Shao-Xin Huang, Feng Zhang, Shu-Jun Li, Cong Liu, Yong-Yong Xi, Liang Wang, Xin Wang, Qi-Qiang He, Cheng-Cao Sun, De-Jia Li
BACKGROUND: Lung cancer is still one of the most serious causes of cancer-related deaths all over the world. MicroRNAs (miRNAs) are defined as small non-coding RNAs which could play a pivotal role in post-transcriptional regulation of gene expression. Increasing evidence demonstrated dysregulation of miRNA expression associates with the development and progression of NSCLC. AIMS: To emphasize a variety of tissue-specific miRNAs, circulating miRNAs and miRNA-derived exosomes could be used as potential diagnostic and therapeutic biomarkers in NSCLC patients...
October 8, 2017: Cell Proliferation
Wei Lin, Zhiguang Zhao, Zhonglin Ni, Yaxin Zhao, Wenjun Du, Shijun Chen
OBJECTIVE: Interferon-inducible 16 (IFI16) is known to involve in p53-dependent tumour suppression and also the formation of inflammasome, which function, however, remains controversy during carcinogenesis as a pattern recognition receptor for tumour death-derived free DNA. In this study, we investigated the anti-tumour role of IFI16 in hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Hepatocellular carcinoma tissues (n = 20) and corresponding non-neoplastic tissues (n = 20) were collected to determine the expression of IFI16...
October 8, 2017: Cell Proliferation
Qiangfeng Yu, Leyang Xiang, Libo Yin, Xincheng Liu, Dinghua Yang, Jianyin Zhou
OBJECTIVES: Hypermethylation-induced epigenetic silencing of tumour suppressor genes (TSGs) are frequent events during carcinogenesis. MicroRNA-142 (miR-142) is found to be dysregulated in cancer patients to participate into tumour growth, metastasis and angiogenesis. However, the tumour suppressive role of miR-142 and the status of methylation are not fully understood in hepatocellular carcinoma (HCC). METHODS: Hepatocellular carcinoma tissues and corresponding non-neoplastic tissues were collected...
September 30, 2017: Cell Proliferation
Xianli Ma, Shengjin Qi, Zhenying Duan, Hongzhan Liao, Baohua Yang, Wenbo Wang, Jie Tan, Qinghua Li, Xuewei Xia
OBJECTIVES: Chordoma is a rare malignant bone tumour arising from notochordal remnants. Long non-coding RNA LOC554202, as the host gene of miR-31, contributes to various cancer developments. However, little is known about the biological function of LOC554202 in chordoma. Here, the relationship between LncRNA LOC554202, miR-31 and EZH2 was elucidated in chordoma. MATERIALS AND METHODS: The levels of LOC554402, miR-31, EZH2, RNF144B, and epithelial-mesenchymal transition (EMT) markers were measured in chordoma tissues and the chordoma cell lines via quantitative real-time PCR (qRT-PCR) or Western blot...
September 30, 2017: Cell Proliferation
Shiyu Lin, Qi Zhang, Xiaoru Shao, Tao Zhang, Changyue Xue, Sirong Shi, Dan Zhao, Yunfeng Lin
OBJECTIVES: The aim of this study was to investigate the role of insulin-like growth factor-1 (IGF-1) and crosstalk between endothelial cells (ECs) and adipose-derived stem cells (ASCs) in the process of angiogenesis. METHODS: A three-dimensional collagen gel used to culture mouse ASCs and mouse ECs in vitro was established. The effects of angiogenesis after exposure to IGF-1 were observed by confocal laser scanning microscopy. Western blotting and qPCR were performed to elucidate the underlying mechanisms...
September 27, 2017: Cell Proliferation
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