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Infection of Myeloid Angiogenic Cells (MACs) with Bartonella henselae (B.h.) induces a chord formation phenotype in vitro.

ABSTRACT: Myeloid Angiogenic Cells (MACs) were infected with the intracellular, bacterial pathogen Bartonella henselae (B.h.). Infected cells were seeded onto Matrigel coated plates. While uninfected cells showed no phenotypic changes and died over time, infected cells showed strong phenotypic changes and developed into complex 2D chord networks over the course of long term culture (eg 49d). To examine the changes in gene expression associated with the development of the B.h.dependent chord formation phenotype, RNA was isolated from MACs shortly after isolation (d4) and from cells of the chord structures (+B.h. Matrigel). As primary endothelial cells are also know to form chord networks when cultured on Matrigel, a sample of human umbilical vein endothelial cells (HUVECs) cultured on Matrigel for 12hr was also included in the analysis as a control.

ORGANISM(S): Homo sapiens

PROVIDER: GSE55170 | GEO | 2015/04/23

SECONDARY ACCESSION(S): PRJNA238661

REPOSITORIES: GEO

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Infection of Myeloid Angiogenic Cells (MACs) with Bartonella henselae (B.h.) induces a chord formation phenotype in vitro.

Project description:Myeloid Angiogenic Cells (MACs) were infected with the intracellular, bacterial pathogen Bartonella henselae (B.h.). Infected cells were seeded onto Matrigel coated plates. While uninfected cells showed no phenotypic changes and died over time, infected cells showed strong phenotypic changes and developed into complex 2D chord networks over the course of long term culture (eg 49d). To examine the changes in gene expression associated with the development of the B.h.dependent chord formation phenotype, RNA was isolated from MACs shortly after isolation (d4) and from cells of the chord structures (+B.h. Matrigel). As primary endothelial cells are also know to form chord networks when cultured on Matrigel, a sample of human umbilical vein endothelial cells (HUVECs) cultured on Matrigel for 12hr was also included in the analysis as a control. myeloid angiogenic cells (MACs) from three donors were compared d4 after isolation with MACs infected with Bartonella henselae and cultured on Matrigel coated plates for up to 49 days, 1 sample from human umbilical cord vein endothelial cells (HUVECs) cultured for 12hr on Matrigel coated plates were also included as a control.

2015-04-23 | E-GEOD-55170 | biostudies-arrayexpress

Comparison of microglial proteomes of MACS and FACS-based purified CD11b+ microglia

Project description:Background Proteomic characterization of microglia has been limited by low yield and contamination by non-microglial proteins by magnetic-activated cell sorting (MACS) enrichment strategies. To determine whether a fluorescent-activated cell sorting (FACS)-based strategy overcomes these limitations, we compared microglial proteomes of MACS and FACS-based purified CD11b+ microglia in order to identify core sets of microglial proteins in adult mouse brain tissue. Results Quantitative multiplex proteomics by tandem mass tag mass spectrometry (TMT-MS) of MACS-enriched (N = 5) and FACS-purified (N = 5) adult wild-type CD11b+ microglia identified 1,791 proteins, of which 953 were differentially expressed indicating significant differences between both approaches. While the FACS-purified microglia proteome was enriched with cytosolic, endoplasmic reticulum and ribosomal proteins involved in protein metabolism and immune system functions, the MACS-enriched microglia proteome was enriched with proteins related to mitochondrial function and synaptic transmission. As compared to MACS, the FACS microglial proteome showed strong enrichment for canonical microglial proteins while neuron, astrocyte, and oligodendrocyte proteins were decreased. Interestingly, we observed enrichment of endothelial specific proteins in the FACS microglia proteome. By comparing FACS-purified microglia proteomes with transcriptomes, we observed highly concordant as well as highly discordant proteins that were abundant at the protein level but low at the transcript level. Conclusions We demonstrate that TMT-MS proteomics of FACS-purified adult microglia is superior to column-based enrichment approaches, resulting in purer and highly-enriched microglial proteomes. We also define core sets of highly-abundant adult microglial proteins including Moesin (Msn) that can guide future studies.

2020-05-11 | PXD015652 | Pride

A genome-wide analysis of human pluripotent stem cell-derived endothelial cells cultured in synthetic hydrogels compared to standard 2D or 3D cell culture platforms

Project description:The influence of 2D and 3D cell culture platforms on vascular function was investigated by comparing gene expression for human pluripotent stem cell-derived endothelial cells (H1-ECs), primary human brain vascular pericytes (pericytes), and human umbilical vein endothelial cells (HUVECs) cultured on tissue culture polystyrene (TCP, “2D”), on or in poly(ethylene glycol) (PEG) hydrogels formed via “thiol-ene” photopolymerization, and on or in gelled Matrigel. ECs cocultured with pericytes in PEG formed vascular networks with global gene expression that was highly correlated to a standard 3D Matrigel assay (Spearman’s coefficients ≥ 0.98). H1-ECs, HUVECs, and pericytes were characterized gene expression signatures associated with the cell cycle and mitosis when cultured on TCP surfaces compared to cells cultured on top of or encapsulated in PEG hydrogels or Matrigel. The proliferative signature was not necessarily a function of the 2D format, since endothelial cells cultured on PEG hydrogels were not characterized by increased proliferation or a proliferative gene signature compared to cells encapsulated in PEG hydrogels. The proliferative phenotype for H1-ECs on TCP was regulated by FAK-ERK activity, and inhibition or knockdown of ERK pathway signaling decreased proliferation and cell cycle genes while increasing expression of “3D-like” vasculature development genes. Our results suggest that cells in 2D culture adopt a highly proliferative state that interferes with normal vascular function and provides unique insight into the importance of cellular and extracellular context for in vitro tissue modeling.

2017-02-22 | GSE93511 | GEO

HUVEC with/without VEGF-A treatment in 3D matrigel or 2D monoculture

Project description:To profile changes in gene expression in human endothelial cells in response to VEGF-A165 and phenotypic changes during vascular network formation in vitro 16 samples of human umbilical vein endothelial cells were analysized, four distinct biological samples were used in each condition. The four conditions included: VEGF treatment in Matrigel culture, Mock treatment in Matrigel culture, VEGF treatment in 2D monolayer, and mock treatment in 2D monolayer.

2015-06-30 | E-GEOD-53550 | biostudies-arrayexpress

Bacterial Intestinal Gut Modification Around Cancer Surgery (BIG MACS) Diet

Project description:The long-term study objective is to develop optimized nutritional therapies for surgery and test them in clinical practice. This pilot study will test a microbiome-optimization diet in colorectal cancer surgery patients. The study hypothesizes that the Bacterial Intestinal Gut Modification Around Cancer Surgery (BIG MACS) Diet will provide participants with increased microbiota accessible carbohydrates (MACs) to support the microbiome and improve outcomes.

| 2972 | ecrin-mdr-crc

NIAID Mulit-Center AIDS Cohort Study (MACS)

Project description:NIAID Mulit-Center AIDS Cohort Study (MACS)

| PRJNA671317 | ENA

NIAID Mulit-Center AIDS Cohort Study (MACS)

Project description:NIAID Mulit-Center AIDS Cohort Study (MACS)

| PRJNA671318 | ENA

miRNA expression of tube forming HUVECs

Project description:To identify the miRNAs specifically upregulated during tube formation of primary endothelial cells , HUVECs were cultured in culture plates with or without matrigel-coating and the miRNAs from them were compared.

2017-08-11 | GSE56663 | GEO

Expression data from isolated endothelial cells from glioblastoma and normal brain cultured on Matrigel

Project description:Expression data from isolated endothelial cells from glioblastoma and normal brain cultured on Matrigel

| PRJNA573744 | ENA

Transcription profiling of mouse gonocytes isolated from 2 dpp mouse testes by THY1+ MACS sorting and treated with retinoic acid

Project description:to investigate the RA regulated genes in 2 dpp thy1+ gonocytes Experiment Overall Design: gonocytes were isolated from 2 dpp mouse testes by THY1+ MACS sorting and cultured without serum, growth factors and feeder cells for 8hr, with either vehicle ethanol or RA (100 nM). Two control and two RA treated samples were included.

2008-06-16 | E-GEOD-9521 | biostudies-arrayexpress

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