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Cell Biology International

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https://www.readbyqxmd.com/read/28627774/decreased-expression-of-wnt2-in-villi-of-unexplained-recurrent-spontaneous-abortion-patients-may-cause-trophoblast-cell-dysfunction-via-downregulated-wnt-%C3%AE-catenin-signaling-pathway
#1
Ning Li, Shuhong Li, Yanwei Wang, Jiahui Wang, Kai Wang, Xin Liu, Yan Li, Juan Liu
WNT2 has been reported to be important for placental development, especially for the proper vascularization of the placenta. However, its precise role in first-trimester trophoblast cells is still unknown. WNT2 expression in the villous tissues of unexplained recurrent spontaneous abortion (URSA) patients was compared with that of healthy women by Western blot. The function of WNT2 in HTR-8/SVneo trophoblast cells was evaluated by altering the cellular WNT2 level through overexpression and shRNA knockdown. The molecular mechanism of the effect of WNT2 on trophoblast cells was investigated...
June 19, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28627723/vitamin-d-enhances-omega-3-polyunsaturated-fatty-acids-induced-apoptosis-in-breast-cancer-cells
#2
Jing Yang, Shenglong Zhu, Guangxiao Lin, Ci Song, Zhao He
Breast cancer is a leading type of cancer in women and generally classified into three subtypes of ER(+) /PR(+) , HER2(+) and triple negative. Both omega-3 polyunsaturated fatty acids and vitamin D3 play positive role in the reduction of breast cancer incidence. However, whether combination of omega-3 polyunsaturated fatty acids and vitamin D3 has stronger protective effect on breast carcinogenesis still remains unknown. In this study, we show that the combination of ω-3 free fatty acids (ω-3 FFAs) and 1α, 25-dihydroxy-vitamin D3 (VD3 ) dramatically enhances cell apoptosis among three subtypes of breast cancer cell lines...
June 19, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28618119/kh-type-splicing-regulatory-protein-mediate-inflammatory-response-in-gastric-epithelial-cells-induced-by-lipopolysaccharide
#3
Chong Chen, Mei Cao, Daoyan Wu, Ningzhe Li, Jingshan Peng, Liju Song, Panpan Qi, Mao Zhang, Jian Zhao
To study differential expressions of KH-type splicing regulatory protein (KSRP) and inflammatory factors and to explore the relationship between them in Lipopolysaccharide (LPS)-induced gastric epithelial cells (GES-1), cells were exposed to LPS for 24 h in the presence or absence of SC-514. Western blot and real-time PCR (RT-PCR) were used to analysis the contents of KSRP, inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2). The results showed that LPS decreased the expression of KSRP protein in GES-1 cells, but not KSRP mRNA, while increasing the levels of iNOS and COX-2 proteins and mRNAs in GES-1cells...
June 15, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28618065/cold-interferes-with-male-meiotic-cytokinesis-in-arabidopsis-thaliana-independently-of-the-ahk2-3-ahp2-3-5-cytokinin-signaling-module
#4
Bing Liu, Nico De Storme, Danny Geelen
Previously we have shown that low temperature stress in Arabidopsis causes defects in microtubule organization and cytokinesis in male meiocytes, which leads to the formation of diploid pollen. Because cytokinin (CK) mediates multiple physiological responses to cold stress, we investigated whether CK signaling is involved in cold-induced diploid pollen formation. To this end, we monitored male sporogenesis in a series of mutants defective in CK metabolism and signalling. Arabidopsis plants with altered CK homeostasis, i...
June 15, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28593745/ox-ldl-increases-microrna-29a-transcription-through-up-regulating-yy1-and-stat1-in-macrophages
#5
Dongdong Jian, Bing Dai, Xiaotong Hu, Qiang Yao, Li Zhang, Jianhua Zhu
Macrophages and oxidized low-density lipoprotein (ox-LDL) have been verified playing vital roles in the pathogenesis of atherosclerosis (AS). Previous studies demonstrated that microRNA-29a (miR-29a) was up-regulated in many atherogenic process and cells thus acting as an important participant in AS. But the detailed regulation mechanism of miR-29a in AS has not been fully understood. In our study, we demonstrated a positive feedback loop ox-LDL-SRA-miR-29a. Furthermore, we found that YY1 and STAT1 were up-regulated in ox-LDL stimulating macrophages followed by translocating in the nucleus and binding to the transcriptional promoter region of miR-29a thus leading to the increase of miR-29a expression...
June 7, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28574187/menopause-transition-promotes-distinct-modulation-of-mrnas-and-mirnas-expression-in-calvaria-and-bone-marrow-osteoblastic-cells
#6
Mayara Sgarbi Semeghini, Fernanda Grilo de Azevedo, Roger Rodrigo Fernandes, Amanda Freire Assis, Janaína Andrea Dernowsek, Adalberto Luiz Rosa, Selma Siéssere, Geraldo Aleixo Passos, Karina Fittipaldi Bombonato-Prado
Investigation on functional genome research may contribute to the knowledge of functional roles of different mRNAs and miRNAs in bone cells of osteoporotic animals. Currently, few studies indicate the changes in gene modulation that osteoporosis causes in osteoblastic cells from different sites. Thus, the purpose of this investigation was to evaluate cell viability, alkaline phosphatase activity and modulation of mRNAs/miRNAs in osteoblastic cells from calvaria and bone marrow by means of microarray technology...
June 2, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28561419/endothelial-cells-co-cultured-with-renal-carcinoma-cells-significantly-reduce-reck-expression-under-chemical-hypoxia
#7
Xiaoyi Zhang, Lei Liu, Jing Liu, Zhengyuan Cheng, Zhi Wang, Chuanbing Shi, Fengan Ding, Sijie Chen, Pingsheng Chen
Renal cell carcinoma (RCC) is characterized by excessive angiogenesis, while chronic kidney disease (CKD) suffers from the opposite problem-failure of reparative angiogenesis. It can be due to their different responses to hypoxic environment. But the specific molecular regulators are still unclear. This study is aimed to explore the influence of human renal cell cancer cells (786-0) and human renal tubular epithelial cells (HK-2) on RECK expression, proliferation, and angiogenesis of adjacent microvascular endothelial cells (HMEC-1) under chemical hypoxia...
May 31, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28557172/deubiquitinase-usp18-prevents-cellular-apoptosis-from-oxidative-stress-in-liver-cells
#8
Keng Po Lai, Angela Hoi Yan Cheung, William Ka Fai Tse
Deubiquitinases (DUBs) de-conjugate ubiquitin (UBQ) from ubiquitylated substrates to regulate their activity and stability. They play different cellular functions such as cell cycle regulation, DNA repair and early embryogenesis. Additionally, studies have demonstrated that some DUBs are the signaling targets of cellular stress such as oxidative stress. Reactive oxygen species are generated during normal mitochondrial oxidative metabolism and proper cellular mechanism could protect the cell from the oxidative stress...
May 30, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28557137/modulation-of-cd11c-lung-dendritic-cells-in-respect-to-tgf-%C3%AE-in-experimental-pulmonary-fibrosis
#9
Kaustav Chakraborty, Soumya Chatterjee, Arindam Bhattacharyya
Idiopathic Pulmonary fibrosis (IPF) is a deadly progressive lung disease with very few treatment options till now. Bleomycin-induced pulmonary fibrosis (BIPF) is a commonly used mice model in IPF research. TGF-β1 has been shown to play a key role in pulmonary fibrosis (PF). Dendritic cell (DC) acts as a bridge between innate and adaptive immune system. The coexistence of chronic inflammation sustained by mature DCs with fibrosis suggests that inflammatory phenomenon has key importance in the pathogenesis of pulmonary fibrosis...
May 30, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28544005/hiv-1-p55-gag-protein-induces-senescence-of-human-bone-marrow-mesenchymal-stem-cells-and-reduces-their-capacity-to-support-expansion-of-hematopoietic-stem-cells-in-vitro
#10
Ya-Hong Yuan, Shan-Shan Zhao, Xiao-Li Wang, Zhi-Ping Teng, Dong-Sheng Li, Yi Zeng
Patients with human immunodeficiency virus-1 (HIV-1) infection often present with hematopoietic failure. As the important hematopoietic support cells in the bone marrow (BM), the bone marrow mesenchymal stem cells (BMSCs) can be impacted by HIV proteins that are released by infected cells within BM. In this study, we tested whether HIV protein p55-gag could induce senescence of BMSCs and reduce their capacity to support expansion of hematopoietic stem cells in vitro. BMSCs were chronically treated with p55-gag (BMSCgag ) for up to 20 days, and their proliferative activity and senescence makers were compared to nontreated cells (BMSCcon )...
May 25, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28544312/c-x-c-motif-chemokine-receptor-4-promotes-tumor-angiogenesis-in-gastric-cancer-via-activation-of-jak2-stat3
#11
Qing Zhang, Feng Xu, Yi Shi, Yi-Wen Chen, Hai-Ping Wang, Xue Yu, Yong Li
C-X-C motif chemokine receptor 4 (CXCR4) overexpression promotes gastric cancer growth and metastasis. In this study, we determined its role in regulating tumor angiogenesis. We overexpressed CXCR4 in gastric cancer cells and examined the effects of conditioned medium on endothelial cell proliferation, migration, and tube formation. The effects of CXCR4 overexpression on vascular endothelial growth factor (VEGF) expression and signal transducer and activator of transcription 3 (STAT3) activation were analyzed...
May 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28544161/bone-marrow-derived-cells-response-in-proximal-regions-of-nerves-after-peripheral-nerve-injury
#12
Lulu Chen, Jia Cheng, Xiaonan Yang, Xiaolei Jin, Zuoliang Qi, Yu-Qing Jin
In recent years, bone marrow-derived cells have been found to be crucial for peripheral nerve regeneration. After traumatic peripheral nerve injury, bone marrow-derived macrophages quickly infiltrate into the distal regions of nerves. To explore the changes caused by bone marrow-derived cells within the proximal regions of the nerves, sciatic nerves of chimeric mice carrying bone marrow cells expressing green fluorescent protein were crushed to observe the infiltration of invading bone marrow-derived cells...
May 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28544034/knock-down-of-farnesyl-pyrophosphate-synthase-protects-heart-derived-h9c2-cells-against-hypoxia-reoxygenation-induced-injury
#13
Dong-Pu Dai, Huan-Dong Wu, Jian Yang, Shi-Zhen Shen, Chen-Ze Zhao, Jie Ding, Shen-Jiang Hu
Farnesyl pyrophosphate synthase (FPPS) is a key enzyme in the mevalonate pathway. Our previous studies have indicated that cardiac-specific overexpression of FPPS induces cardiac hypertrophy and dysfunction in mice, and inhibition of FPPS prevents angiotensin (Ang) II-induced hypertrophy in cardiomyocytes. However, the role for FPPS in myocardial ischemia/reperfusion (MIR) injury is still not clear. The objective of this work was to investigate the effect of FPPS on MIR injury in H9c2 cells which were subjected to hypoxia/reoxygenation (HR) to mimic MIR...
May 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28500745/advanced-oxidation-protein-products-induce-hepatocyte-epithelial-mesenchymal-transition-via-a-ros-dependent-tgf-%C3%AE-smad-signaling-pathway
#14
Shibo Sun, Fang Xie, Qifan Zhang, Zhonglin Cui, Xinsheng Cheng, Feng Zhong, Kun He, Jie Zhou
Epithelial-mesenchymal transition (EMT) occurs during the progression of liver fibrosis in response to chronic liver injury. However, the molecular mechanism underlying the regulation of hepatocyte EMT remains unclear. The aim of this study was to determine whether advanced oxidation protein products (AOPP) had an effect on hepatocyte EMT. The human L02 hepatocyte cell line and hepatocytes from normal Sprague-Dawley rats were challenged with AOPP treatment in both in vitro and in vivo studies. The expression of cell and molecular markers of EMT in L02 hepatocytes were studied using Western blotting, and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) assays...
May 13, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28498509/molecular-interplays-in-hepatic-stellate-cells-apoptosis-senescence-and-phenotype-reversion-as-cellular-connections-that-modulates-liver-fibrosis
#15
REVIEW
Silva B O, Ramos L F, Moraes K C M
Liver fibrosis is a pathophysiological process correlated with intense repair and cicatrization mechanisms in injured liver, and over the past few years, the characterization of the fine-tuning of molecular interconnections that support the development of liver fibrosis has been investigated. In this cellular process, the hepatic stellate cells (HSCs) support the organ fibrogenesis. The HSCs are found in two distinct morpho-physiological states: quiescent and activated. In normal liver, most HSCs are found in quiescent state, presenting a considerable amount of lipid droplets in the cytoplasm, while in injured liver the activated phenotype of HSCs is a myofibroblast,that secretes extracellular matrix elements and contributes to the establishment of the fibrotic process...
May 12, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28493535/the-mongolian-gerbil-meriones-unguiculatus-as-a-model-for-inflammation-promoted-prostate-carcinogenesis
#16
Amado A Quintar, Bianca F Gonçalves, Sebastião R Taboga, Cristina A Maldonado
One of the recognized issues in prostate cancer research is the lack of animal models allowing the research of pathological, biochemical, and genetic factors in immunocompetent animals. Our research group has successfully employed the gerbil in several studies for prostate diseases. In the present work, we aimed to analyze the effect of chronic bacterial inflammation on N-methyl-N-nitrosourea (MNU)-induced prostate carcinogenesis in gerbils. Histopathological assessment of the prostatic complex revealed that treatment combinations with MNU plus testosterone or bacterial infection resulted in a promotion of prostate cancer, with bacterial inflammation being more effective in increasing premalignant and malignant tissular alterations than testosterone in the prostate...
May 11, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28493530/m2-macrophages-induce-emt-through-the-tgf-%C3%AE-smad2-signaling-pathway
#17
Liangying Zhu, Xiao Fu, Xiang Chen, Xiaodong Han, Ping Dong
IPF is characterized by fibroblast accumulation, collagen deposition and ECM remodeling, with myofibroblasts believed to be the effector cell type. Myofibroblasts develop due to EMT of lung alveolar epithelial cells, which can be induced by TGF-β. M2 macrophages, a macrophage subpopulation, secrete large amounts of TGF-β. To clarify the relationship between IPF, EMT, TGF-β and M2 macrophages, a bleomycin-induced pulmonary fibrosis mouse model was used. Seventeen days after mice were treated with bleomycin, the successful establishment of a pulmonary fibrosis model was confirmed by HE stain and Masson's trichrome stain...
May 11, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28493523/fibrillar-collagen-genes-are-not-coordinately-upregulated-with-tgf-%C3%AE-1-expression-in-finasteride-treated-prostate
#18
Flávia Karina Delella, Fernanda Losi Alves de Almeida, Helga Caputo Nunes, Jaqueline Carvalho Rinaldi, Sérgio Luis Felisbino
Benign prostatic hyperplasia (BPH) is the most common cause of lower urinary tract symptoms (LUTS) in older men. In this regard, recent studies have attempted to define the relationships between prostatic fibrosis, LUTS, and increased expression of transforming growth factor β1 (TGF β1) in BHP. Therapeutic approaches for BPH such as 5-α-reductase inhibitors and alpha-adrenergic blocking agents increase TGF β1 expression in the prostatic tissue. Here, we investigated the effects of the 5-α-reductase inhibitor-finasteride-on rat ventral prostate tissue, especially with regard to the tissue distribution and gene expression of fibrillar collagens...
May 11, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28488774/fscn1-is-upregulated-by-snai2-and-promotes-epithelial-to-mesenchymal-transition-in-head-and-necksquamous-cell-carcinoma
#19
Lei Wang, YaoPeng Jia, ZengYu Jiang, Wei Gao, BinQuan Wang
In this study, we investigated whether there is any association between the expression of FSCN1 and SNAI2and the possible underlying mechanisms in head and neck squamous cell carcinoma (HNSC). In addition, we also investigated whether FSCN1 modulates epithelial to mesenchymal transition (EMT) in HNSC cells. Microarray data of dysregulated genes in HNSC was searched in GEO datasets. The association between FSCN1 expression and the 5-year/10-year overall survival (OS), as well as the correlation between the expression of FSCN1 and SOX2, MYBL2, SNAI2, STAT1 and SOX4 were analyzed based on data in TCGA HNSC cohort (TCGA-HNSC)...
May 10, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28477422/prostate-cancer-molecular-profiling-the-achilles-heel-for-the-implementation-of-precision-medicine
#20
REVIEW
Eliane Gouvêa Oliveira-Barros, Pedro Nicolau-Neto, Nathalia Meireles Da Costa, Luís Felipe Ribeiro Pinto, Antonio Palumbo, Luiz Eurico Nasciutti
Cancer has been mainly treated by traditional therapeutic approaches which do not consider the human genetic diversity and present limitations, probably as a consequence of a poor knowledge of both patient's genetic background and tumor biology. Due to genome project conclusion and large-scale gene analyses emergence, the therapeutic management of several prevalent and aggressive tumors has dramatically improved and represents the closest examples of a precision medicine intervention in this field. Nonetheless, prostate cancer (PCa) remains as a challenge to personalized medicine implementation, probably due to its notorious heterogeneous molecular profile...
May 6, 2017: Cell Biology International
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