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Cell Biology International

Xingwen Wang, Xin Zhao, Zhigang Yi, Bing Ma, Hong Wang, Yanchuan Pu, Jing Wang, Shuanke Wang
WNT5A, a representative ligand of activating several non-canonical Wnt signal pathways, plays significant roles in oncogenesis and tumor inhibition. It has been shown that the non-receptor tyrosine kinase SRC is required for WNT5A-induced invasion of osteosarcoma cells. However, the precise molecular mechanism underlying WNT5A/SRC-mediated osteosarcoma cells invasion remains poorly defined. The study was designed to explore the role of ERK1/2 in WNT5A/SRC-induced osteosarcoma cells invasion and the downstream target of the SRC/ERK1/2 signalings...
January 18, 2018: Cell Biology International
Cristiano Pedrozo Vieira, Manuela Viola, Giane Daniela Carneiro, Maria Luisa D'Angelo, Cristina Pontes Vicente, Alberto Passi, Edson Rosa Pimentel
Tendinitis changes the biochemical and morphological properties of the tendon, promoting an increase of activity of metalloproteinases and disorganization of collagen bundles. Tenocytes the primary cells in tendon, are scattered throughout the collagenic fibres, and are responsible of tendon remodeling and tissue repair in pathological condition. In vivo, glycine, component of the typical Gly-X-Y collagen tripeptide, showed beneficial effects in biochemical and biomechanical properties of Achilles tendon with tendinitis...
January 18, 2018: Cell Biology International
Xiaofeng Peng, Kangming Pan, Wenli Zhao, Jianzhu Zhang, Shicheng Yuan, Xiang Wen, Wenquan Zhou, Zhijin Yu
Colon cancer is the third most common malignancy and one of the leading causes of cancer-associated mortality worldwide. Neuronal pentraxin 1 (NPTX1) is associated with tumor progression in some types of tumors. However, its expression and role in colon cancer has not been yet reported. Here we observed that NPTX1 was down-regulated in colon cancer. Additionally, we explored the functional significance of NPTX1 in colon cancer. We found that over-expression of NPTX1 inhibited colon cancer cell growth by performing MTT, colony formation, Edu corporation assays, and cell cycle analysis...
January 18, 2018: Cell Biology International
Wei Wang, Fan-Bin Meng, Zhen-Xing Wang, Xiao Li, Dong-Sheng Zhou
Osteosarcoma represents the most common primary malignant bone tumor in children and adolescents, which shows severe resistance towards standard chemotherapy because of high invasive capacity and growing incidence. Selenocystine (SeC) is a naturally available Se-containing amino acid that displays splendid anticancer activities against several human tumors. However, little information about SeC-induced growth inhibition against human osteosarcoma is available. Herein, the anticancer efficiency and underlying mechanism of SeC against human osteosarcoma were evaluated in vitro and in vivo...
January 11, 2018: Cell Biology International
Jessica Cristina Marín-Llera, Jesús Chimal-Monroy
Skeletal progenitors are derived from resident limb bud mesenchymal cells of the vertebrate embryos. However, it remains poorly understood if they represent stem cells, progenitors or multipotent mesenchymal stromal cells (MSC). Derived-MSC of different adult tissues under in vitro experimental conditions can differentiate into the same cellular lineages that are present in the limb. Here, comparing non-cultured versus cultured mesenchymal limb bud cells, we determined the expression of MSC-associated markers, the in vitro differentiation capacity and their gene expression profile...
January 4, 2018: Cell Biology International
Svitlana H Plohovska, Yuliya A Krasylenko, Alla I Yemets
Cytoskeleton is gaining the increasing recognition as one of nitric oxide (NO) -downstream targets because of its involvement in plenty of NO-controlled processes in plants throughout the entire life cycle starting from seed germination to pollination as well as (a)biotic stress tolerance. It has been revealed that low temperature (+0.5°C) has an inhibitory effect on A. thaliana primary root growth and causes an anisotropic increase of epidermal cells diameter in elongation zone. Furthermore, actin filaments' organization of epidermal cells in different zones of primary roots is modulated by NO content...
December 30, 2017: Cell Biology International
Xuerong Sun, Tangbin Zou, Changqing Zuo, Mingmeng Zhang, Benyan Shi, Zhiwen Jiang, Hongjing Cui, Xiaoxin Liao, Xiaoyi Li, Yuelian Tang, Yusheng Liu, Xinguang Liu
Dysfunctional adipogenesis such as subcutaneous lipoatrophy is closely related to insulin resistance and metabolic disorders. Although the expression or release of the cytokine interleukin-1α(L-1α) is known to increase in adipose tissue in response to cell death, cell senescence, aging, or solar radiation, the regulatory role of IL-1α in adipogenesis has not been sufficiently investigated. To investigate the problem, we explored the effect of IL-1α on the proliferation and adipogenic differentiation of human adipose-derived mesenchymal stem cells (ADSCs) using cell counting, alamarBlue assay, oil O staining, Western blot, among others...
December 30, 2017: Cell Biology International
Jing Hu, LiBin Zhang, Qiang Chen, Jie Lin, ShaoBo Wang, Ri Liu, WenJing Zhang, Kun Miao, Tao Shou
Cytoplasmic polyadenylation element binding protein 4 (CPEB4) could be an important regulator in variety of cancers. However, the biological function and the underlying molecular mechanism of CPEB4 in non-small cell lung cancer (NSCLC) remains unknown. In this study, we investigated the metastasis role of CPEB4 in NSCLC cells, we knocked down CPEB4 using siRNA. Transwell migration assay and cell invasion assay on Matrigel were presented, and cell migration was also determined by scratch-healing assay. ROS generation were determined by fluorescence probe DCFH2-DA...
December 29, 2017: Cell Biology International
Noelia Lander, Miguel A Chiurillo, Mayara S Bertolini, Roberto Docampo, Aníbal E Vercesi
The presence of a conserved mechanism for mitochondrial calcium uptake in trypanosomatids was crucial for the molecular identification of the mitochondrial calcium uniporter (MCU), a long-sought channel present in most eukaryotic organisms. Since then, research efforts to elucidate the role of MCU and its regulatory elements in different biological models have multiplied. MCU is the pore-forming subunit of a multimeric complex (the MCU complex or MCUC) and its predicted structure in trypanosomes is simpler than in mammalian cells, lacking two of its subunits and probably possessing other unidentified components...
December 29, 2017: Cell Biology International
Dongying Chen, Xiaohan Yuan, Lijie Liu, Minghui Zhang, Bo Qu, Zhen Zhen, Xuejun Gao
ATPase family AAA-domain containing protein 3A (ATAD3A) is a nuclear-encoded mitochondrial membrane protein, which is essential for cell growth and metabolism. The mechanism by which ATAD3A acts is still not fully understood. In this study, we explored the regulatory role of ATAD3A on milk biosynthesis and proliferation of bovine mammary epithelial cell. We showed that ATAD3A is localized in mitochondria and the expression of ATAD3A was up-regulated in response to extracellular stimuli such as amino acids and hormones...
December 29, 2017: Cell Biology International
Marina Guimarães Gobbo, Guilherme Henrique Tamarindo, Daniele Lisboa Ribeiro, Silvana Gisele Pegorin de Campos, Sebastião Roberto Taboga, Rejane Maira Góes
Chronic hyperglycemia increases production of reactive oxygen species, which favors carcinogenesis. The association between diabetes and prostate cancer is controversial. Melatonin has antioxidant, anti-inflammatory and antiproliferative properties. We investigated whether low doses of melatonin prevent the tissue alterations caused by diabetes and alter prostate histology of healthy rats. We also investigated whether experimental diabetes promoted the development of pathological lesions in the ventral prostate of rats...
December 26, 2017: Cell Biology International
Rui Wei, Fei Yu, Jin Yang, Hongwei Gao, Haining Wang, Tianpei Hong
Peroxisome proliferator-activated receptor γ (PPARγ) is expressed in various types of human cancer cells including leukaemia cells, and activation of PPARγ can inhibit cancer cell growth. However, whether PPARγ is expressed in Jurkat cells, a human T-lymphocyte leukaemia cell line, and whether activation of PPARγ affects cell biological behaviours remains to be clarified. In this study, we investigated the effect of a PPARγ activator rosiglitazone, under clinically relevant pharmacological concentrations, on the growth and apoptosis of Jurkat cells in vitro and explored the possible mechanism...
December 23, 2017: Cell Biology International
Chang Liu, Huili Tong, Shufeng Li, Yunqin Yan
Extracellular matrix components have important regulatory functions during cell proliferation and differentiation. In recent study, extracellular matrix were shown to have a strong effect on skeletal muscle differentiation. Here, we aimed to elucidate the effects of extracellular matrix protein 2 (ECM2), an extracellular matrix component, on the differentiation of bovine skeletal muscle-derived satellite cells (MDSCs). Western blot and immunofluorescence analyses were used to elucidate the ECM2 expression pattern in bovine MDSCs during differentiation in vitro...
December 23, 2017: Cell Biology International
Qinqin Zhou, Dejun Fan, Kejun Huang, Xiuting Chen, Yufeng Chen, Qingyun Mai
RNA activation mediated by small double-stranded RNAs targeting promoter sequence named small activating RNAs (saRNAs), is one of the mechanisms for gene activation. Artificial regulation of gene expression through RNA activation doesn't affect the alteration of the genomic DNA sequences or exogenous plasmid DNA, therefore it is a relative manageable approach for gene perturbation. KLF4 is a member of zinc-finger transcription factors and its functions in colorectal cells are still controversial. In order to elucidate the functions of KLF4, we synthesized saRNAs that target the promoter regions of KLF4 and transfected into varied colorectal epithelial cell lines...
December 23, 2017: Cell Biology International
Tianshu Guo, Ye Zhang, Xiujuan Qu, Xiaofang Che, Ce Li, Yibo Fan, Xing Wan, Rui Ma, Kezuo Hou, Huiming Zhou, Xiaowei He, Xuejun Hu, Yunpeng Liu, Ling Xu
Tumor necrosis factor-alpha-related apoptosis-inducing ligand (TRAIL) triggers apoptosis by inducing the death-inducing signaling complex (DISC) formation. Recently, TNFα-induced protein 3 (TNFAIP3, A20) was reported to prevent TRAIL-induced caspase 8 cleavage in the DISC by mediating ubiquitination of RIP1 in glioblastoma. However, whether A20 regulates caspase 8 cleavage in the DISC when TRAIL induces apoptosis in gastric cancer cells is unknown. In the present study, A20 interacted with RIP1 and DR4 in MGC803 and SGC7901 gastric cancer cells...
December 23, 2017: Cell Biology International
Xiaoting Fan, Lei Li, Zhaoyang Ye, Yan Zhou, Wen-Song Tan
Human amniotic membrane-derived mesenchymal stem cells (hAMSCs) draw great interests for regenerative medicine due to convenient availability and low immunogen-icity. However, suboptimal culture conditions limit their application. In recent years, small molecules have proven powerful in regulating stem cell fates and can be applied to stimulate their function. In the present study, the impacts of sodium butyrate (Na-Bu), a histone deacetylase inhibitor (HDACi), on hAMSCs were investigated. It was shown that NaBu at a low concentration inhibited cell proliferation by arresting cell cycle at G0/G1 rather than inducing apoptosis...
December 22, 2017: Cell Biology International
Erfath Thanjeem Begum M, Katari Venkatesh, Dwaipayan Sen
Parkinson's disease (PD) is the second most progressive neurodegenerative disease characterized by the loss of dopaminergic neurons and accumulation of misfolded proteins in endoplasmic reticulum (ER) leading to activation of the unfolded protein response (UPR). In the present study, we aimed to determine the potential survival effect of the delta opioid neuro-peptide D-Alanine 2, Leucine 5 Enkephaline (DADLE) and its mechanism in dopaminergic SH-SY5Y cells which were subjected to ER stress. In this cellular model of PD, enhanced cell survivability was observed on DADLE treatment (but not with μ and κ opioid agonists) along with concomitant down regulation of the UPR stress sensors and protein aggregates...
December 22, 2017: Cell Biology International
Mateus P Mori, Nadja C de Souza-Pinto
DNA is constantly being damaged, either by endogenous or exogenous genotoxins. In that regard, DNA repair activities are essential for maintaining genomic stability and to life itself. Mutations in genes encoding DNA repair proteins cause severe human syndromes, but DNA repair defects have also been linked to several other diseases, notably to cancer and normal aging. Recently, new evidence has emerged indicating that some DNA repair diseases display mitochondrial and metabolic dysfunction through mechanisms that are yet being uncovered...
December 22, 2017: Cell Biology International
Xin Ma, Peng Li, Xiang Sun, Yifeng Sun, Rong Hu, Ping Yuan
Due to high infertility ratio nowadays, it is essential to explore efficient ways of enhancing mammalian reproductivity, in particular female reproductivity. Using female Oct4-GFP embryonic stem cells, we mimic the in vivo development procedure to induce ES cells into epiblast cell-like cells (EpiLCs) and then primordial germ cell-like cells (PGCLCs). GFP positive PGCLCs that showed typical PGC markers and epigenetic modification were efficiently obtained. Further transplantation of the GFP positive PGCLC and native ovary cell mixture into ovary of infertile mice revealed that both MVH and GFP positive cells could be developed in ovary, but no later developmental stage germ cells were observed...
December 22, 2017: Cell Biology International
Felipe Corrêa-da-Silva, Jéssica Aparecida da Silva Pereira, Cristhiane Favero de Aguiar, Pedro Manoel Mendes de Moraes-Vieira
In the past decade, several reports have appointed the importance of mitochondria in the immune response. Our understanding of mitochondria evolved from a simple supplier of energy into a platform necessary for immunorregulation. Proinflammatory responses are associated with enhanced glycolytic activity and breakdown of the TCA cycle. Mitochondrial reactive species of oxygen (mROS) are key regulators of classically activated macrophages, with substantial impact in the anti-microbicidal activity and pro-inflammatory cytokine secretion of macrophages...
December 22, 2017: Cell Biology International
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