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Transcriptome analysis upon lymphatic endothelial cells (LEC) and cancer cells (Haca4) co-culture

ABSTRACT: To investigate the mechanisms underlying the connection between LEC and cancer cells and their potential roles in tumorigenesis we co-cultured LEC and HaCa4 cells for 24 hours and compared the transcript levels of both FACS-isolated HaCa4 cells and LEC from co-cultures with those from individual cell cultures

ORGANISM(S): Mus musculus

PROVIDER: GSE227697 | GEO | 2023/04/21

REPOSITORIES: GEO

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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

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

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

2009-09-30 | GSE16354 | GEO

Metabolomics revealed the influence of breast cancer on lymphatic endothelial cell metabolism, metabolic crosstalk, and lymphangiogenic signaling in co-culture

Project description:<p>Breast cancer metastasis occurs via blood and lymphatic vessels. Breast cancer cells 'educate' lymphatic endothelial cells (LECs) to support tumor vascularization and growth. However, despite known metabolic alterations in breast cancer, it remains unclear how lymphatic endothelial cell metabolism is altered in the tumor microenvironment and its effect in lymphangiogenic signaling in LECs. We analyzed metabolites inside LECs in co-culture with MCF-7, MDA-MB-231, and SK-BR-3 breast cancer cell lines using 1H nuclear magnetic resonance (NMR) metabolomics, Seahorse, and the spatial distribution of metabolic co-enzymes using optical redox ratio imaging to describe breast cancer-LEC metabolic crosstalk. LECs co-cultured with breast cancer cells exhibited cell-line dependent altered metabolic profiles, including significant changes in lactate concentration in breast cancer co-culture. Cell metabolic phenotype analysis using Seahorse showed LECs in co-culture exhibited reduced mitochondrial respiration, increased reliance on glycolysis and reduced metabolic flexibility. Optical redox ratio measurements revealed reduced NAD(P)H levels in LECs potentially due to increased NAD(P)H utilization to maintain redox homeostasis. 13C-labeled glucose experiments did not reveal lactate shuttling into LECs from breast cancer cells, yet showed other 13C signals in LECs suggesting internalized metabolites and metabolic exchange between the two cell types. We also determined that breast cancer co-culture stimulated lymphangiogenic signaling in LECs, yet activation was not stimulated by lactate alone. Increased lymphangiogenic signaling suggests paracrine signaling between LECs and breast cancer cells which could have a pro-metastatic role.</p>

2024-06-25 | MTBLS859 | MetaboLights

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

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. There are n=3 of 1. control LEC spheroids (LEC), 2. KSHV infected LEC spheroids (K-LEC)

2011-12-21 | E-GEOD-22522 | biostudies-arrayexpress

MicroRNA expression in human lymphatic endothelial cells (LEC) and blood endothelial cells (BEC)

Project description:This experiment was aim to identify differentially expressed miRNAs from cultured human LEC and BEC using microRNA-seq.

2019-02-19 | GSE126679 | GEO

Expression data from two sorted lymphatic endothelial cell (LEC) populations, podoplanin-high versus podoplanin low

Project description:Extracorporeal shockwave treatment was shown to improve orthopaedic diseases, wound healing and to stimulate lymphangiogenesis in vivo. The aim of this study was to investigate in vitro shockwave treatment (IVSWT) effects on lymphatic endothelial cell (LEC) behavior and lymphangiogenesis. We analyzed migration, proliferation, vascular tube forming capability and marker expression changes of LECs after IVSWT compared with HUVECs. Finally, transcriptome- and miRNA analyses were conducted to gain deeper insight into the IVSWT-induced molecular mechanisms in LECs. The results indicate that IVSWT-mediated proliferation changes of LECs are highly energy flux density-dependent and LEC 2D as well as 3D migration was enhanced through IVSWT. IVSWT suppressed HUVEC 3D migration but enhanced vasculogenesis. Furthermore, we identified podoplaninhigh and podoplaninlow cell subpopulations, whose ratios changed upon IVSWT treatment. Transcriptome- and miRNA analyses on these populations showed differences in genes specific for signaling and vascular tissue. Our findings help to understand the cellular and molecular mechanisms underlying shockwave-induced lymphangiogenesis in vivo. Immortalized lymphatic endothelial cells were flow-sorted in two populations according to their differences in FSC and SSC values and subjected to Affymetrix analysis in triplicate samples

2014-10-20 | E-GEOD-62510 | biostudies-arrayexpress

Expression profiling of tumor lymphatic endothelial cells upon acute Ang2 inhibition

Project description:Lymphatic endothelial cells (LEC) were isolated from MT-ret tumor tissue 12h after treatment with an Ang2-blocking antibody or control-IgG

2020-12-01 | GSE141262 | GEO

Expression data from two sorted lymphatic endothelial cell (LEC) populations, podoplanin-high versus podoplanin low

2014-10-20 | GSE62510 | GEO

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