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Comparison of the transcriptome of K-LEC spheroids to control LEC spheroids

ABSTRACT: Kaposi sarcoma is the most common cancer in AIDS patients and is typified by red skin lesions.The disease is caused by the KSHV virus (HHV8) and is recognisable by its distinctive red skin lesions. The lesions are KSHV infected spindle cells expressing markers of the lymphatic endothelial and blood vessel endothelial cells as well as other cell types. The effects of KSHV infection of lymphatic endothelial cells (LEC) cultured in 3D matrix for three days were assayed using Affymetrix hgu133plus2 chips. There are n=3 of 1. control LEC spheroids (LEC), 2. KSHV infected LEC spheroids (K-LEC)

ORGANISM(S): Homo sapiens

SUBMITTER: Paive Ojala

PROVIDER: E-GEOD-22522 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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KSHV-initiated notch activation leads to membrane-type-1 matrix metalloproteinase-dependent lymphatic endothelial-to-mesenchymal transition.

Cheng Fang F Pekkonen Pirita P Laurinavicius Simonas S Sugiyama Nami N Henderson Stephen S Günther Thomas T Rantanen Ville V Kaivanto Elisa E Aavikko Mervi M Sarek Grzegorz G Hautaniemi Sampsa S Biberfeld Peter P Aaltonen Lauri L Grundhoff Adam A Boshoff Chris C Alitalo Kari K Lehti Kaisa K Ojala Päivi M PM

Cell host & microbe 20111201 6

Kaposi sarcoma (KS), an angioproliferative disease associated with Kaposi sarcoma herpesvirus (KSHV) infection, harbors a diversity of cell types ranging from endothelial to mesenchymal cells of unclear origin. We developed a three-dimensional cell model for KSHV infection and used it to demonstrate that KSHV induces transcriptional reprogramming of lymphatic endothelial cells to mesenchymal cells via endothelial-to-mesenchymal transition (EndMT). KSHV-induced EndMT was initiated by the viral pr ...[more]

PMID: 22177562

Similar Datasets

Transcription profiling of lymphatic endothelial cells infected with Kaposi's sacoma associated herpes virus

Project description:This SuperSeries is composed of the following subset Series: GSE16353: The profile of cellular and KSHV microRNAs in AIDS_KS biopsies (and normal skin control biopsies) GSE16354: Infection of Lymphatic and Blood Vessel Endothelial Cells (LEC and BEC) with KSHV GSE16355: Lymphatic endothelial cells (LEC) transfected with the KSHV microRNA cluster GSE16356: Lymphatic endothelial cells (LEC) treated with a MAF-targeted siRNA Refer to individual Series

2009-09-30 | E-GEOD-16357 | biostudies-arrayexpress

Comparison of the transcriptome of K-LEC spheroids to control LEC spheroids

Project description:Kaposi sarcoma is the most common cancer in AIDS patients and is typified by red skin lesions.The disease is caused by the KSHV virus (HHV8) and is recognisable by its distinctive red skin lesions. The lesions are KSHV infected spindle cells expressing markers of the lymphatic endothelial and blood vessel endothelial cells as well as other cell types. The effects of KSHV infection of lymphatic endothelial cells (LEC) cultured in 3D matrix for three days were assayed using Affymetrix hgu133plus2 chips.

2011-12-21 | GSE22522 | GEO

The profile of cellular and KSHV microRNAs in KSHV infected lymphatic endothelial cells (6 and 72 hours post infection)

Project description:Kaposi sarcoma is the most common cancer in AIDS patients and is typified by red skin lesions. The disease is caused by the KSHV virus (HHV8) and is recognizable by its distinctive red skin lesions. The lesions are KSHV infected spindle cells, most commonly the lymphatic endothelial and blood vessel endothelial cells (LEC and BEC), plus surrounding stroma. The effects of KSHV infection of LECs were assayed using Affymetrix hgu133plus2 chips at 6 and 72 hours post infection. There were n=4 each of lymphatic endothelial cells (LEC) following 6 hours of culture, LEC following 6 hours post KSHV infection, LEC following 72 hours of culture, and LEC following 72 hours post KSHV infection.

2010-05-18 | E-GEOD-17016 | biostudies-arrayexpress

Transcription profiling of human LEC cells reveals KSHV manipulates notch signaling by upregulating Dll4 and JAG1 to alter cell cycle gene expression in

Project description:Kaposi sarcoma is the most common cancer in AIDS patients and is typified by red skin lesions. The disease is caused by the KSHV virus (HHV8) and is recognizable by its distinctive red skin lesions. The lesions are KSHV infected spindle cells, most commonly the lymphatic endothelial and blood vessel endothelial cells (LEC and BEC), plus surrounding stroma. Here we examine KSHVs modulation of Notch signaling using wild-type LEC cells co-cultured with DLL4 and JAG1 expressing LEC cells. Experiment Overall Design: There are 1) n=2 of LEC control cells co-cultured with pSIN expressing LEC, 2) n=3 of LEC co-cultured with pSIN-Dll4 expressing LEC, and 3) n=3 of LEC co-cultured with pSIN-JAG1 expressing LEC.

2009-12-05 | E-GEOD-16547 | biostudies-arrayexpress

Transcription profiling of human lymphatic edothelial cells transfected with the KSHV microRNA cluster

Project description:Kaposi sarcoma is the most common cancer in AIDS patients and is typified by red skin lesions. The disease is caused by the KSHV virus (HHV8) and is recognisable by its distinctive red skin lesions. The lesions are KSHV-infected spindle cells, most commonly the lymphatic endothelial and blood vessel endothelial cells (LEC and BEC), plus surrounding stroma. The KSHV virus expresses multiple microRNA in a single cluster. Here we test the effects of this KSHV microRNA cluster in LEC cells using Affymetrix hgu133plus2 chips. Experiment Overall Design: There are n=3 of: 1. LEC control with empty vector pSIN-MCS (LEC), 2. LEC transfected with the same vector containing the KSHV microRNA cluster.

2009-10-10 | E-GEOD-16355 | biostudies-arrayexpress

RNAi knock down of MAFin human lymphatic endothelial cells

Project description:Kaposi sarcoma is the most common cancer in AIDS patients and is typified by red skin lesions. The disease is caused by the KSHV virus (HHV8) and is recognisable by its distinctive red skin lesions. The lesions are KSHV-infected spindle cells, most commonly the lymphatic endothelial and blood vessel endothelial cells (LEC and BEC), plus surrounding stroma. The KSHV virus expresses multiple MAF-downregulating microRNA. Here we test the effects of MAF silencing by siRNA in LEC cells using Affymetrix hgu133plus2 chips. Experiment Overall Design: There are n=3 of 1. LEC control cells transfected with a non-targeting siRNA, 2. LEC transfected with a MAF-targeting siRNA

2009-10-10 | E-GEOD-16356 | biostudies-arrayexpress

Lymphatic endothelial cells (LEC) transfected with the KSHV microRNA cluster

Project description:Kaposi sarcoma is the most common cancer in AIDS patients and is typified by red skin lesions. The disease is caused by the KSHV virus (HHV8) and is recognisable by its distinctive red skin lesions. The lesions are KSHV-infected spindle cells, most commonly the lymphatic endothelial and blood vessel endothelial cells (LEC and BEC), plus surrounding stroma. The KSHV virus expresses multiple microRNA in a single cluster. Here we test the effects of this KSHV microRNA cluster in LEC cells using Affymetrix hgu133plus2 chips.

2009-09-30 | GSE16355 | GEO

Lymphatic endothelial cells (LEC) treated with a MAF-targeted siRNA

Project description:Kaposi sarcoma is the most common cancer in AIDS patients and is typified by red skin lesions. The disease is caused by the KSHV virus (HHV8) and is recognisable by its distinctive red skin lesions. The lesions are KSHV-infected spindle cells, most commonly the lymphatic endothelial and blood vessel endothelial cells (LEC and BEC), plus surrounding stroma. The KSHV virus expresses multiple MAF-downregulating microRNA. Here we test the effects of MAF silencing by siRNA in LEC cells using Affymetrix hgu133plus2 chips.

2009-09-30 | GSE16356 | GEO

Infection of Lymphatic and Blood Vessel Endothelial Cells (LEC and BEC) with KSHV

2009-09-30 | GSE16354 | GEO

Differentially regulated splice variants and systems biology analysis of Kaposi's Sarcoma-associated Herpesvirus-infected lymphatic endothelial cells

Project description:Alternative RNA splicing greatly increases proteome diversity, and the possibility of studying genome-wide alternative splicing (AS) events becomes available with the advent of high-throughput genomics tools devoted to this issue. Kaposi’s sarcoma associated herpesvirus (KSHV) is the etiological agent of KS, a tumor of lymphatic endothelial cell (LEC) lineage, but little is known about the AS variations induced by KSHV. We analyzed KSHV-controlled AS using high-density microarrays capable of detecting all exons in the human genome. Splicing variants and altered exon-intron usage in infected LEC were found, and these correlated with protein domain modification. The different 3’ UTR used in new transcripts also help isoforms to escape microRNA-mediated surveillance. Exome-level analysis further revealed information that cannot be disclosed using classical gene-level profiling: a significant exon usage difference existed between LEC and CD34+ precursor cells, and KSHV infection resulted in LEC-to-precursor, dedifferentiation-like exon level reprogramming. Our results demonstrate the application of exon arrays in systems biology research, and suggest the regulatory effects of AS in endothelial cells are far more complex than previously observed. This extra layer of molecular diversity helps to account for various aspects of endothelial biology, KSHV life cycle and disease pathogenesis that until now have been unexplored. 5 samples were analyzed. 3 were KSHV infected lymphatic endothelial cells (LECs), and 2 were non-infected control samples.

2011-05-05 | E-GEOD-26341 | biostudies-arrayexpress

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