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Cell Biology International

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https://www.readbyqxmd.com/read/28741879/mir-376a-suppresses-the-proliferation-and-invasion-of-non-small-cell-lung-cancer-by-targeting-c-myc
#1
Youyu Wang, Wei Cong, Gang Wu, Xueming Ju, Zhixi Li, Xin Duan, Xueli Wang, Hong Gao
It has been reported that miR-376a is involved in the formation and progression of several types of cancer However, the expression and function of miR-376a is still unknown in non-small cell lung carcinomas (NSCLC). In this study, the expression of miR-376a in NSCLC tissues and cell lines were examined by real-time PCR, the effects of miR-376a on cell proliferation, apoptosis and invasion were evaluated in vitro. Luciferase reporter assay was performed to identify the targets of miR-376a. The results showed that miR-376a was significantly downregulated in NSCLC tissues and cell lines...
July 25, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28741838/intrauterine-exposure-to-oestradiol-promotes-sex-specific-differential-effects-on-the-prostatic-development-of-neonate-gerbils
#2
Bruno D A Sanches, Juliana S Maldarine, Manoel F Biancardi, Fernanda C A Santos, Maria E Pinto-Fochi, Julia Q Antoniassi, Rejane M Goés, Patrícia S L Vilamaior, Sebastião R Taboga
The effects of intrauterine exposure to 17β-oestradiol (E2) are well studied for the male prostate and there are accumulating evidences that the exposure to high dosages leads to a hypomorphic development. However there is a lack of information about the effects of intrauterine exposure to E2 in the prostate of rodent females, and such research becomes relevant in view of the presence of functional prostate in a proportion of women, and the morphophysiological similarities between the prostate of female rodents and the prostate of women...
July 25, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28737260/answer-to-the-comment-of-manuscript-cbin-20170431-bioinformatics-analysis-in-menopause-transition-promotes-distinct-modulation-in-calvaria-and-bone-marrow-osteoblastic-cells
#3
Karina F B Prado
We thank Dr. Xu for this opportunity to better clarify the use of the t-test for microarray data analysis and we are happy that our results are useful. Firstly, t-test when used for microarray data analysis corresponds to a version adapted for large-scale data and not the classical t-test for experiments that generate a small set of data. The Agilent Gene Spring platform (1) that we used in this study provides the version of t-test suitable for microarray data analysis, including hypothesis test correction (Benjamini-Hochberg correction or FDR)...
July 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28737222/bioinformatics-analysis-in-menopause-transition-promotes-distinct-modulation-in-calvaria-and-bone-marrow-osteoblastic-cells
#4
Chenyu Li, Yanfei Wang, Hong Luan, Hui Zhang, Yan Xu
We read with great interest the recent report by Semeghini et al., "Menopause transition promotes distinct modulation of mRNAs and miRNAs expression in calvaria and bone marrow osteoblastic cells," which appeared on 24 May 2017 in Cell Biology International. The results of the report are very helpful for us, however, from our perspective, the author's methods in bioinformatics analysis is inappropriate: Student's t-tests is an inappropriate statistical method for detecting differentially expressed mRNA or miRNA in osteoblastic cells from calvaria of ovariectomized rats compared to control or in osteoblastic cells from bone marrow of ovariectomized rats compared to control...
July 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28710799/high-glucose-induces-o-glcnac-glycosylation-of-the-vitamin-d-receptor-vdr-in-thp1-cells-and-in-human-macrophages-derived-from-monocytes
#5
Fernando Hernandez-Sánchez, Silvia Guzmán-Beltrán, María Teresa Herrera, Yolanda Gonzalez, Manuel Salgado, Guadalupe Fabian, Martha Torres
Chronic hyperglycemia increases the carbon flux through the hexosamine pathway, allowing the accumulation of UDP-GlcNAc. UDP-GlcNAc is the sugar donor for the enzyme-mediated protein glycosylation event known as OGlcNAcylation. This posttranslational modification targets several transcription factors implicated in glucose toxicity, insulin resistance, and diabetes. Vitamin D plays an important role in glucose homeostasis and insulin secretion through transcriptional mechanisms mediated by its receptor (VDR)...
July 15, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28708281/cooperation-of-hif-and-ncam-mediated-mechanisms-in-cell-viability-of-hippocampal-cultures-after-oxygen-glucose-deprivation
#6
Lushnikova Iryna, Nikandrova Yelyzaveta, Skibo Galyna
Neurodegenerative diseases of different genesis are the result of cellular damages including those caused by oxygen and glucose deficit. Neuronal survival or death in brain pathologies depends on a variety of interrelated molecular mechanisms. A key role in modulation of neuron viability belongs to HIF (hypoxia-inducible factor) and NCAM (neural cell adhesion molecules) signaling pathways. In this work we used organotypic and dissociated hippocampal cultures to analyze cell viability and HIF-1α immunopositive (HIF-1α(+) ) signal after 30 minutes oxygen-glucose deprivation (OGD) followed by 24 h of reoxygenation in the presence of FGL (synthetic NCAM-derived mimetic peptide)...
July 14, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28707774/hsa_circ_0020397-regulates-colorectal-cancer-cell-viability-apoptosis-and-invasion-by-promoting-the-expression-of-the-mir-138-targets-tert-and-pd-l1
#7
Xiu-Li Zhang, Ling-Ling Xu, Fang Wang
Colorectal cancer (CRC) is a common human gastrointestinal cancer, and recent studies indicate that circular RNA (circRNA) may regulate cancer development. In this study, we assess the role of circRNA specifically in colorectal cancer. Our quantitative PCR assays demonstrate an upregulation of the circRNA has_circ_0020397 and a downregulation of miR-138 in CRC cells, as well as a negative correlation between these two. Using a dual-luciferase reporter assay, we show evidence of miR-138 binding sites on hsa_circ_0020397, and that overexpression of hsa_circ_0020397 could inhibit the downregulation of luciferase activity by miR-138...
July 14, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28699302/runx3-inhibits-melanoma-cell-migration-through-regulation-of-cell-shape-change
#8
Xin Zhang, Linghui Wang, Xianlu Zeng, Takashi Fujita, Wenguang Liu
The transcription factor Runx3 is a known tumor suppressor gene, and its expression is frequently lost in melanoma. However, the potential contribution of the loss of Runx3 expression to melanoma development and progression remains unclear. In this in vitro study, we demonstrated that ectopic Runx3 re-expression in B16-F10 melanoma cells changed the cell shape from elongated and branched to spread and unbranched, which enhanced stress fiber formation, increased the number of mature and fibrillar focal adhesions, and up-regulated fibronectin expression...
July 12, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28696027/atz-1-influences-meiosis-to-maintain-germline-chromosomal-stability-in-caenorhabditis-elegans
#9
Joseph A Dawson, Caitlin Methven-Kelley, Gregory M Davis
Exchange of genetic information during meiosis occurs in all sexually reproducing species to produce haploid gametes from diploid cells. This process involves tight coordination of a meiotic specific cohesin complex, the synaptonemal complex, and DNA damage repair mechanisms. In this study, we describe a putative myosin heavy chain protein orthologous to human myosin 1, F28D1.2, which we named atz-1 (Abnormal Transition Zone). Deletion of atz-1 results in embryonic lethality and a depleted transition zone, accompanied by reduced expression of the meiotic cohesin protein, REC-8...
July 11, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28685977/the-post-therapeutic-effect-of-rapamycin-in-mild-traumatic-brain-injured-rats-ensuing-in-the-upregulation-of-autophagy-and-mitophagy
#10
Changxing Wang, Zhiying Hu, Yang Zou, Mingjun Xiang, Yuting Jiang, Benson O A Botchway, Xue Huo, Xiaoxue Du, Marong Fang
Mild traumatic brain injury (mTBI), common in juveniles, has been reported to be caused by sports-related concussion. Many young children may suffer from post-concussion syndrome. mTBI, in early stages of life, could play a part in neuron apoptosis and degeneration, cognitive and motor coordination impairment, as well as dementia. Our study was aimed at further investigating the post therapeutic efficacy of rapamycin in the recuperation of mTBI whiles at the same time investigating the metamorphosis in both autophagy and mitophagy in mTBI...
July 7, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28685905/3d-modelling-of-carboxyl-terminal-phosphorylation-of-plant-%C3%AE-%C3%AE-tubulin-and-its-role-in-kinesin-8-microtubule-interaction
#11
O M Demchuk, P A Karpov, Ya B Blume
The results of computer modelling of plant kinesin-8/αβ-tubulin complexes with such αβ-tubulins' modified amino acid residues as phosphorylated Tyr262 and Tyr107 are reported in this paper. The molecular dynamics of these modified complexes in comparison with the dynamics of non-modified ones suggests that the phosphorylation of both α- and β-tubulins reveals stabilizing effect on the ptotein structure around the modified residue. It was found also that the phosphorylation of Tyr107 in β-tubulin molecule favours to more advantageous kinesin-8 binding with the phosphorylated microtubule surface in terms of energy...
July 7, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28685895/restoration-of-microrna-708-sensitizes-ovarian-cancer-cells-to-cisplatin-via-igf2bp1-akt-pathway
#12
Xuying Qin, Linlin Sun, Jing Wang
A previous study has shown that microRNA-708 (miR-708) functions as a metastasis suppressor in ovarian cancer. In this study, we aimed to explore its implication in regulating cisplatin sensitivity in ovarian cancer cells. To this end, ovarian cancer cells were transfected with miR-708-expressing plasmids or vector before treatment with different concentrations of cisplatin for 48 h. The 50% inhibitory concentration (IC50) value was calculated. Apoptosis was analyzed by measuring caspase-3 activity. The target gene mediating the function of miR-708 was identified...
July 7, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28678446/mda-mb-231-and-8701bc-breast-cancer-lines-promote-the-migration-and-invasiveness-of-ecv304-cells-on-2d-and-3d-type-i-collagen-matrix
#13
S Saladino, M Salamone, G Ghersi
Tumor angiogenesis is a multiphasic process, having the extracellular matrix remodeling as critical step. Different classes of proteolytic enzymes in matrix digestion/remodeling are involved. The role of lytic enzymes and their activation mode have not been completely elucidated. Herein, the crosstalk between endothelia and tumor cells, by realization of bi- and three-dimensional endothelial and breast cancer cells co-cultures, were studied in vitro. Particularly, the effects of two tumor conditioned media (TCM) were assessed about endothelial proliferation, migration and invasiveness...
July 5, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28675500/fam107b-is-regulated-by-s100a4-and-mediates-the-effect-of-s100a4-on-the-proliferation-and-migration-of-mgc803-gastric-cancer-cells
#14
Junfu Guo, Yue Bian, Yu Wang, Lisha Chen, Aiwen Yu, Xiuju Sun
FAM107B expression was decreased in stomach cancer and many other kinds of cancer. The forced expression of FAM107B in HeLa cells diminished proliferation in response to growth factors, suggesting that FAM107B might play important roles in many types of cancers. But the mechanisms underlying the decreased expression of FAM107B in cancers are not clear, the functional significance needs to be further clarified. Our previous findings from cDNA microarray showed that there are 179 differentially expressed genes after S100A4 inhibition in gastric cancer cells MGC803...
July 4, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28665049/the-regulatory-role-of-dipeptidyl-peptidase-i-on-the-activation-of-immune-granulocytes
#15
Yi Chu, Yaming Guo, Andrew F Walls, Xiaoying Zhou
Dipeptidyl peptidase I (DPPI), a lysosomal cysteine protease, required for activation of serine proteases of granulocytes including mast cells (MCs), neutrophils (NPs) and others, which were found in synovial tissue of patients with rheumatoid arthritis (RA). But, the role of DPPI associated with those cells in RA development is unclear. In this study, the collagen-induced-arthritis (CIA) rat-model was employed to investigate the expression and activity levels of DPPI and its association with RA progress. Primary granulocytes were freshly extracted from bone-marrows of normal or CIA rats, human mast cell line LAD-2 and primary neutrophils, human-recombinant-DPPI, DPPI-inhibitor Gly-Phe-CHN2 , LTB4, anti-IgE antibody, calcium ionophore were used to study the regulatory role of DPPI in cell activations...
June 30, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28665000/cytoskeleton-during-aerenchyma-formation-in-plants
#16
REVIEW
Elizabeth L Kordyum, Galina V Shevchenko, Vasyl O Brykov
Aerenchyma is a plant tissue characterized by prominent intercellular spaces facilitating gas diffusion between roots and the aerial environment. The classical formation of intercellular spaces is thought to be the result of schizogeny and lysogeny during development of wetland species and in some dry-land species in response to different abiotic stress, including drought, high temperature, and nutrient deficiency. The plant cytoskeleton is known to play a major role in cellular organization and signaling pathways...
June 30, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28656734/simvastatin-induced-actin-cytoskeleton-disassembly-in-normal-and-transformed-fibroblasts-without-affecting-lipid-raft-integrity
#17
Vladislav I Chubinskiy-Nadezhdin, Yuri A Negulyaev, Elena A Morachevskaya
Statins are the most commonly prescribed agents used to modulate cholesterol levels in course of hypercholesterolemia treatment because of their relative tolerability and LDL-C lowering effect. Recently, there are emerging interests in the perspectives of statin drugs as anticancer agents based on preclinical evidence of their antiproliferative, proapoptotic and anti-invasive properties. Functional impact of statin application on transformed cells still remains obscure that requires systematic study on adequate cellular models to provide correct comparison with their non-transformed counterparts...
June 28, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28656724/mir-148a-promotes-myocardial-differentiation-of-human-bone-mesenchymal-stromal-cells-via-dna-methyltransferase-1-dnmt1
#18
Changke Jiang, Fang Gong
MicroRNAs have potential to modulate the differentiation of stem cells. In previous study, we found that miR-148a was up-regulated in myocardial differentiation of human bone mesenchymal stromal cells (hBMSCs) induced by 5'-azacytidine. However, the role of miR-148a in regulating this process still remains unclear. In this study, we investigated the function and molecular mechanism of miR-148a in myocardial differentiation of hBMSCs. We found that miR-148a was significantly increased while DNA methyltransferase 1 (DNMT1) was significantly decreased in myocardial differentiation of hBMSCs...
June 28, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28656641/putative-gravisensors-among-microtubule-associated-proteins
#19
REVIEW
Galina V Shevchenko
Despite of long period of investigation (over 100 years), still a lot of questions remain unclear about molecular mechanisms of plant graviperception. This requires designing new experiments and new approaches to be applied in gravitational biology. Investigation of plant cell reactions under clinorotation (plant disorientation in respect to gravity vector) is of significant importance to such type of research. Clinorotation is known to cause changes of cell polarity and exert mechanical stress in plant cells...
June 28, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28653788/mir-497-accelerates-oxidized-low-density-lipoprotein-induced-lipid-accumulation-in-macrophages-by-repressing-the-expression-of-apelin
#20
Junfeng Cui, Zhong Ren, Wenshuang Zou, Yanling Jiang
microRNAs (miRNAs) play important roles in the pathogenesis of atherosclerosis. A previous study has reported that miR-497 is elevated in advanced atherosclerotic lesions in an apoE-deficient (apoE-/-) mouse model. The purpose of this study is to test whether miR-497 can modulate macrophage foam cell formation, an initiating event in atherosclerosis. We found that miR-497 was upregulated in THP-1 macrophages after treatment with oxidized low-density lipoprotein (oxLDL). Enforced expression of miR-497 promoted lipid accumulation and decreased cholesterol efflux in oxLDL-exposed THP-1 macrophages...
June 27, 2017: Cell Biology International
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