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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Carboplatin-treated human retinal endothelial cells

ABSTRACT: Super-selective intra-ophthalmic artery chemotherapy (SSIOAC) is an organ-specific drug-delivery strategy to treat retinoblastoma, the most common primary ocular malignancy in children. Unfortunately, recent clinical reports associate adverse vascular toxicities with SSIOAC using melphalan, the most commonly used chemotherapeutic. To explore the reason for the unexpected vascular toxicities, we have developed in vitro studies with human retinal endothelial cells to test the effects of the chemotherapeutics and a non-human primate model to monitor the SSIOAC treatment in real-time and post-treatment. Melphalan and carboplatin (another chemotherapeutic used to treat retinoblastoma via SSIOAC) triggered migration, proliferation, and apoptosis when used to treat human retinal endothelial cells. Melphalan was associated with increased adhesion of leukocytes to human retinal endothelial cells, and tended to increase with increased cell expression of adhesion proteins (ICAM-1) and soluble chemotactic factors (IL-8). Histopathology post-SSIOAC indicated vessel wall sloughing, leukostasis, and vessel occlusion. We have established an in vitro human cell culture model and a non-human primate model to evaluate strategies designed to obviate vascular side effects, and optimize the efficacy of SSIAOC and the drug preparations used in SSIOAC. 4 non-treated (CNT) vs. 4 carboplatin-treated primary human retinal endothelial cells (RECs).

ORGANISM(S): Homo sapiens

SUBMITTER: Jena Steinle

PROVIDER: E-GEOD-34379 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Melphalan-treated human retinal endothelial cells

Project description:Super-selective intra-ophthalmic artery chemotherapy (SSIOAC) is an organ-specific drug-delivery strategy to treat retinoblastoma, the most common primary ocular malignancy in children. Unfortunately, recent clinical reports associate adverse vascular toxicities with SSIOAC using melphalan, the most commonly used chemotherapeutic. To explore the reason for the unexpected vascular toxicities, we have developed in vitro studies with human retinal endothelial cells to test the effects of the chemotherapeutics and a non-human primate model to monitor the SSIOAC treatment in real-time and post-treatment. Melphalan and carboplatin (another chemotherapeutic used to treat retinoblastoma via SSIOAC) triggered migration, proliferation, and apoptosis when used to treat human retinal endothelial cells. Melphalan was associated with increased adhesion of leukocytes to human retinal endothelial cells, and tended to increase with increased cell expression of adhesion proteins (ICAM-1) and soluble chemotactic factors (IL-8). Histopathology post-SSIOAC indicated vessel wall sloughing, leukostasis, and vessel occlusion. We have established an in vitro human cell culture model and a non-human primate model to evaluate strategies designed to obviate vascular side effects, and optimize the efficacy of SSIAOC and the drug preparations used in SSIOAC. 4 non-treated (MNT) vs. 4 melphalan-treated primary human retinal endothelial cells (RECs).

2011-12-13 | E-GEOD-34381 | biostudies-arrayexpress

Melphalan-treated human retinal endothelial cells

2011-12-13 | GSE34381 | GEO

Carboplatin-treated human retinal endothelial cells

2011-12-13 | GSE34379 | GEO

Cell leukostasis during organ-targeted chemotherapy in human retinal endothelial cells and rhesus macaques endothelial cells

Project description:This SuperSeries is composed of the following subset Series: GSE34379: Carboplatin-treated human retinal endothelial cells GSE34381: Melphalan-treated human retinal endothelial cells Refer to individual Series

2011-12-13 | E-GEOD-34389 | biostudies-arrayexpress

Mechanisms of endothelial injury and transplant-associated thrombotic microangiopathy in tandem autologous hematopoietic stem cell transplant for neuroblastoma

Project description:Our data indicate that endothelial injury is increased in auto-stem cell transplant patients receiving the specific conditioning regimen carboplatin, etoposide and melphalan and is associated with clinical TA-TMA. Moreover, our data identify specific pathways that can be targeted to treat or prevent TA-TMA.

2023-09-11 | GSE227176 | GEO

Homo sapiens

Project description:Melphalan-treated human retinal endothelial cells

| PRJNA156393 | ENA

Homo sapiens

Project description:Carboplatin-treated human retinal endothelial cells

| PRJNA156391 | ENA

Angiogenic and Immunologic Proteins Identified by Deep Proteomic Profiling of Human Choroidal and Retinal Vascular Endothelial Cells

Project description:PURPOSE Diseases that involve choroidal or retinal endothelial vascular cells are leading causes of vision loss: age-related macular degeneration, retinal ischemic vasculopathies and non-infectious posterior uveitis. Proteins differentially expressed by these endothelial cell populations are potential drug targets. We used deep proteomics to define the molecular phenotype of human choroidal and retinal endothelial cells at the protein level. METHODS Choroidal and retinal endothelial cells were separately isolated from 5 human eye pairs by selection on CD31. Total protein was extracted and digested, and peptide fractions were analysed by reverse-phase liquid chromatography tandem mass spectrometry. Peptide sequences were assigned to fragment ion spectra and proteins were inferred using public protein databases. Protein abundance was determined by spectral counting. Protein expression in choroidal versus retinal endothelial cells was compared using edgeR package in R, and annotation enrichment analysis was performed. RESULTS Human choroidal or retinal endothelial cells expressed 5042 non-redundant proteins. Setting the false discovery rate at 5%, 498 proteins (14.4%) of 3454 quantifiable proteins with minimum mean spectral counts of 2.5 were differentially expressed between cell populations. Choroidal and retinal endothelial cells were enriched in angiogenic proteins, and retinal endothelial cells were also enriched in immunologic proteins. CONCLUSIONS This work demonstrates the protein heterogeneity of human choroidal and retinal vascular endothelial cells and provides multiple candidates for further study as novel treatments or drug targets for posterior eye diseases.

2018-03-26 | PXD005972 | Pride

Protective effects on melphalan-induced mouse intestinal injury treated by Human Umbilical Cord-derived Mesenchymal Stem Cells

Project description:Autologous peripheral hematopoietic stem cell transplantation (autoHSCT) is one front-line therapy with high-dose melphalan for multiple myeloma (MM). Patients with MM who receive conditioning regimen with melphalan usually suffer from severe gastrointestinal symptoms, as one of nonhematological toxicities. Aim: It is an urgent demand to develop an effective methods to repair the intestinal injuries in patients with MM receiving conditioning regimen with high-dose melphalan for autoHSCT. Therefore, the protective effects of Human umbilical cord derived-mesenchymal stem cells (hucMSCs) is investigated after infusion into mouse model with melphalan-induce gastrointestinal injuries.

2024-04-01 | GSE225899 | GEO

Modeling Trilateral Retinoblastoma using Human Embryonic Stem Cells

Project description:Human embryonic stem cells (hESCs) provide a platform for understanding mechanisms underlying diseases and finding ways to treat them. Trilateral retinoblastoma (TRb) is a condition in which retinoblastoma, the most common congenital intraocular malignancy, is associated with an intracranial neural tumor. This mostly fatal disease is caused by biallelic inactivation of the retinoblastoma-1 (RB1) gene, transcribing pRB. Using CRISPR-Cas9 we generated RB1-null hESCs, an embryonic lethal condition. These cells display distinct gene expression patterns with alterations in pRB targets, and mitochondrial phenotypes similar to those of poorly differentiated retinoblastomas. RB1–/– hESC produce extremely large teratomas, with neural expansions similar to those of TRb tumors. Analysis of these tumors revealed a potentially novel role of pRB in ectoderm differentiation, acting through ZEB1. Lastly, RB1–/– cells are significantly sensitive to carboplatin, a chemotherapy used to treat TRb, suggesting our model can be used to screen novel treatments for the disease.

2017-04-09 | GSE84504 | GEO

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