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1,052 results for “Cell growth”
Data from: Phytoplankton growth and stoichiometric responses to warming, nutrient addition and grazing depend on lake productivity and cell size
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Data from: Reduced CTGF Expression Promotes Cell Growth, Migration, and Invasion in Nasopharyngeal Carcinoma
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High throughput measurement of single HeLa cell volume growth and cell cycle progression using FXm
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Data from: In silico study of the role of cell growth factors in photosynthesis using a virtual leaf tissue generator coupled to a microscale photosynthesis gas exchange model
Computational tools that allow in silico analysis of the role of cell growth and division on photosynthesis are scarce. We present a freely available tool that combines a virtual leaf tissue generator and a two-dimensional microscale model of gas transport during C3 photosynthesis. A total of 270 mesophyll geometries were generated with varying degree of growth anisotropy, growth extent and extent of schizogenous airspace formation in the palisade mesophyll. The anatomical properties of the virtual leaf tissue and microscopic cross sections of actual leaf tissue of tomato (Solanum lycopersicum L.) were statistically compared. Model equations for transport of CO2 in the liquid phase of the leaf tissue were discretized over the geometries. The virtual leaf tissue generator produced a leaf anatomy of tomato that was statistically similar to real tomato leaf tissue. The response of photosynthesis to intercellular CO2 predicted by a model that used the virtual leaf tissue geometry compared well with measured values. The results indicate that the light-saturated rate of photosynthesis was influenced by interactive effects of extent and directionality of cell growth and degree of airspace formation through the exposed surface of mesophyll per leaf area. The tool could be used further in investigations of improving photosynthesis and gas exchange in relation to cell growth and leaf anatomy.
Development and Growth Factor Control of Epithelial-Mesenchymal Transition in Fetal and Adult Alveolar Type II Cells
<p>Raw data</p>
Data and code for paper "Reciprocal interactions between tumour cell populations enhance growth and reduce radiation sensitivity in prostate cancer."
<p>This repository contains raw data and code for the manuscript with DOI: 10.1038/s42003-020-01529-5.</p>
Data from: Exogenous restoration of TUSC2 expression induces responsiveness to erlotinib in wildtype epidermal growth factor receptor (EGFR) lung cancer cells through context specific pathways resulting in enhanced therapeutic efficacy
Expression of the tumor suppressor gene TUSC2 is reduced or absent in most lung cancers and is associated with worse overall survival. In this study, we restored TUSC2 gene expression in several wild type EGFR non-small cell lung cancer (NSCLC) cell lines resistant to the epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor erlotinib and analyzed their sensitivity to erlotinib in vitro and in vivo. A significant inhibition of cell growth and colony formation was observed with TUSC2 transient and stable expression. TUSC2-erlotinib cooperativity in vitro could be reproduced in vivo in subcutaneous tumor growth and lung metastasis formation lung cancer xenograft mouse models. Combination treatment with intravenous TUSC2 nanovesicles and erlotinib synergistically inhibited tumor growth and metastasis, and increased apoptotic activity. High-throughput qRT-PCR array analysis enabling multi-parallel expression profile analysis of eighty six receptor and non-receptor tyrosine kinase genes revealed a significant decrease of FGFR2 expression level, suggesting a potential role of FGFR2 in TUSC2-enhanced sensitivity to erlotinib. Western blots showed inhibition of FGFR2 by TUSC2 transient transfection, and marked increase of PARP, an apoptotic marker, cleavage level after TUSC2-erlotinb combined treatment. Suppression of FGFR2 by AZD4547 or gene knockdown enhanced sensitivity to erlotinib in some but not all tested cell lines. TUSC2 inhibits mTOR activation and the latter cell lines were responsive to the mTOR inhibitor rapamycin combined with erlotinib. These results suggest that TUSC2 restoration in wild type EGFR NSCLC may overcome erlotinib resistance, and identify FGFR2 and mTOR as critical regulators of this activity in varying cellular contexts. The therapeutic activity of TUSC2 could extend the use of erlotinib to lung cancer patients with wildtype EGFR.
Data from: Cell cycle-dependent differentiation dynamics balances growth and endocrine differentiation in the pancreas
Organogenesis relies on the spatiotemporal balancing of differentiation and proliferation driven by an expanding pool of progenitor cells. In the mouse pancreas, lineage tracing at the population level has shown that the expanding pancreas progenitors can initially give rise to all endocrine, ductal, and acinar cells but become bipotent by embryonic day 13.5, giving rise to endocrine cells and ductal cells. However, the dynamics of individual progenitors balancing self-renewal and lineage-specific differentiation has never been described. Using three-dimensional live imaging and in vivo clonal analysis, we reveal the contribution of individual cells to the global behaviour and demonstrate three modes of progenitor divisions: symmetric renewing, symmetric endocrinogenic, and asymmetric generating a progenitor and an endocrine progenitor. Quantitative analysis shows that the endocrine differentiation process is consistent with a simple model of cell cycle–dependent stochastic priming of progenitors to endocrine fate. The findings provide insights to define control parameters to optimize the generation of β-cells in vitro.
Data from: SiSTL1, encoding a large subunit of ribonucleotide reductase, is crucial for plant growth, chloroplast biogenesis, and cell cycle progression in Setaria italica
The activity of ribonucleotide reductase (RNR), which catalyzes the transformation of four ribonucleoside diphosphates (NDPs) to their corresponding deoxyribonucleoside diphosphates (dNDPs), is the main determiner of the cellular concentration of dNTP pools and should be tightly coordinated with DNA synthesis and cell-cycle progression. Either constitutively increased or decreased RNR activity are indeed likely to interfere with DNA replication and lead to arrested cell cycle progression; however, the mechanisms underlying these disruptive effects in higher plants remain to be uncovered. In this study, we identified a RNR large subunit mutant, sistl1, in Setaria italica (foxtail millet), that exhibited growth retardation as well as striped leaf phenotype, i.e., irregularly reduced leaf vein distances and decreased chloroplast biogenesis. We determined that a Gly737 to Glu substitution occurrring in the C-terminus of the SiSTL1 protein slightly affected its optimal function, leading in turn to the reduced expression of genes variously involved in the assembly and activation of the DNA pre-replicative complex, elongation of replication forks and S phase entry. Our study provides new insight into how SiSTL1 regulates plant growth, chloroplast biogenesis, and cell cycle progression in Poaceae crops.
Data from: Downregulation of circATXN7 represses non-small cell lung cancer growth by releasing miR-7-5p
<p>Circular RNAs (circRNAs) participate in the occurrence and progression of many cancers. CircRNA ataxin 7 (circATXN7) (circBase ID: hsa_circ_0066436) plays a promoting influence on gastric cancer progression. However, the biological role of circATXN7 in non-small cell lung cancer (NSCLC) is indistinct. CircATXN7 and PFN2 were highly expressed in NSCLC, whereas miR-7-5p expression had the opposite trend. CircATXN7 overexpression constrained apoptosis and promoted proliferation, metastasis, invasion, and epithelial-mesenchymal transition (EMT) of NSCLC cells, but circATXN7 silencing played the opposing influence and repressed xenograft tumor growth <i>in vivo</i>. CircATXN7 served as a miR-7-5p sponge, and circATXN7 regulated malignant behaviors of NSCLC cells through sponging miR-7-5p. PFN2 acted as a miR-7-5p target. PFN2 silencing overturned the promoting effect of miR-7-5p inhibitor on NSCLC cell malignancy, while PFN2 overexpression reversed the inhibitory impact of miR-7-5p mimic on NSCLC cell malignancy. CircATXN7 accelerated the malignancy of NSCLC cells through adsorbing miR-7-5p and upregulating PFN2, offering evidence to support circATXN7 as a might target for NSCLC treatment.</p>
NF-kB suppresses the breast cancer cell's growth via the p38 MAPK inhibitor
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Data from: Trajectory energy minimisation for cell growth tracking and genealogy analysis
Cell growth experiments with a microfluidic device produce large-scale time-lapse image data, which contain important information on cell growth and patterns in their genealogy. To extract such information, we propose a scheme to segment and track bacterial cells automatically. In contrast with most published approaches, which often split segmentation and tracking into two independent procedures, we focus on designing an algorithm that describes cell properties evolving between consecutive frames by feeding segmentation and tracking results from one frame to the next one. The cell boundaries are extracted by minimizing the distance regularized level set evolution (DRLSE) model. Each individual cell was identified and tracked by identifying cell septum and membrane as well as developing a trajectory energy minimization function along time-lapse series. Experiments show that by applying this scheme, cell growth and division can be measured automatically. The results show the efficiency of the approach when testing on different datasets while comparing with other existing algorithms. The proposed approach demonstrates great potential for large-scale bacterial cell growth analysis.
Expanded Access Study of RAD001 in Metastatic Renal Cell Cancer Patients Who Are Intolerant of or Who Have Failed Despite Prior Vascular Endothelial Growth Factor Therapy
ClinicalTrials.gov study NCT00655252. IPD Sharing: Not stated. Countries: 13. Publications: 2.
A Study of ASP2215 in Combination With Erlotinib in Subjects With Epidermal Growth Factor Receptor (EGFR) Activating Mutation-Positive (EGFRm+) Advanced Non-Small-Cell Lung Cancer (NSCLC) Who Have Acq
ClinicalTrials.gov study NCT02495233. IPD Sharing: NO. Countries: 1. Publications: 0.
Aumolertinib With Chemotherapy or Alone Compared With Osimertinib in Patients With Epidermal Growth Factor Receptor-Mutant Non-Small Cell Lung Cancer
ClinicalTrials.gov study NCT05493501. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Selenium in Preventing Tumor Growth in Patients With Previously Resected Stage I Non-small Cell Lung Cancer
ClinicalTrials.gov study NCT00008385. IPD Sharing: YES. Countries: 2. Publications: 0.
The Molecular Epidemiology of Epidermal Growth Factor Receptor (EGFR) Mutations in Patients With Advanced EGFR Mutation-positive Non-small Cell Lung Cancer Treated With Afatinib
ClinicalTrials.gov study NCT04640870. IPD Sharing: NO. Countries: 0. Publications: 24.
A Study of RO4929097 in Patients With Advanced Renal Cell Carcinoma That Have Failed Vascular Endothelial Growth Factor (VEGF)/Vascular Endothelial Growth Factor Receptor (VEGFR) Therapy
ClinicalTrials.gov study NCT01141569. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Xentuzumab (BI 836845) Plus Afatinib in Patients With Epidermal Growth Factor Receptor (EGFR) Mutant Non-small Cell Lung Cancer (NSCLC)
ClinicalTrials.gov study NCT02191891. IPD Sharing: YES. Countries: 4. Publications: 0.
A Study of Trastuzumab Emtansine in Participants With Human Epidermal Growth Factor Receptor (HER)2 Immunohistochemistry (IHC)-Positive, Locally Advanced or Metastatic Non-Small Cell Lung Cancer (NSCL
ClinicalTrials.gov study NCT02289833. IPD Sharing: Not stated. Countries: 7. Publications: 0.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.