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Nucleosomes protect DNA from irradiation-induced double strand breaks in living cells (BLISS)

ABSTRACT: The depletion of HMGB1 reduces the deposition of histones on naked DNA (Celona et al, 2011). in primary MEFs and yeast. We verified that the downmodulation of HMGB1 decreases histone level also in a model of murine mesothelioma. HMGB1 was KD in Murine Mesothelioma AB22 cells by the expression of a shRNA. Nucleosome positioning and occupancy were tested by ATAC-seq. Since a reduced amount of nucleosomes increase the cell sensitivity to gamma irradiatio, we tested the number and position of breaks using BLISS-seq.

ORGANISM(S): Mus musculus

PROVIDER: GSE134797 | GEO | 2020/07/07

REPOSITORIES: GEO

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Nucleosomes protect DNA from irradiation-induced double strand breaks in living cells (ATAC-seq)

Project description:The depletion of HMGB1 reduces the deposition of histones on naked DNA (Celona et al, 2011). in primary MEFs and yeast. We verified that the downmodulation of HMGB1 decreases histone level also in a model of murine mesothelioma. HMGB1 was KD in Murine Mesothelioma AB22 cells by the expression of a shRNA. Nucleosome positioning and occupancy were tested by ATAC-seq. Since a reduced amount of nucleosomes increase the cell sensitivity to gamma irradiatio, we tested the number and position of breaks using BLISS-seq.

2020-07-07 | GSE134796 | GEO

Nucleosomes protect DNA from irradiation-induced double strand breaks in living cells (RNA-seq)

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Nucleosomes protect DNA from irradiation-induced double strand breaks in living cells [BLISS human]

Project description:The number and position of breaks using BLISS-seq was measured in MCF-7 cells upon irradiation with 10 Gy and with or without the use of the antioxidant (N-acetylcysteine, NAC, 10mM).

2020-07-07 | GSE150016 | GEO

Nucleosomes protect DNA from irradiation-induced double strand breaks in living cells (BLISS)

Project description:Nucleosomes protect DNA from irradiation-induced double strand breaks in living cells (BLISS)

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Nucleosomes protect DNA from irradiation-induced double strand breaks in living cells [BLISS human]

Project description:Nucleosomes protect DNA from irradiation-induced double strand breaks in living cells [BLISS human]

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Immunopeptidomics of malignant mesothelioma to identify target antigens for T cell Immunotherapy

Project description:Immunoaffinity purification was performed on human mesothelioma cell lines NCI-H2452, NCI-H28, MSTO-211H and JL1, on murine mesothelioma cell line AB12, as well as on mesothelioma samples from two patients (including tumor and benign tissues). Thereafter Immunopeptidomics by Mass Spectrometry on a Tims TOF Pro revealed the MHC peptide landscape of mesothelioma.

2023-09-08 | PXD038273 | Pride

Genome-wide detection of DNA double-strand breaks by in-suspension BLISS

Project description:sBLISS (in-suspension Break Labeling In Situ and Sequencing) is a versatile and widely applicable method for identification of endogenous and induced DNA double-strand breaks (DSBs), in any cell type that can be brought into suspension. After in situ labeling, DSB ends are linearly amplified followed by next-generation sequencing and DSB landscape analysis. Here, we present a step-by-step experimental protocol for sBLISS, followed by a basic computational analysis. The main advantages of sBLISS are (i) the suspension setup, which circumvents the need to work with delicate coverslips as in the original BLISS, (ii) the possibility for adaptation to a high-throughput robotics or single-cell workflow, and (iii) its flexibility and applicability to virtually every cell type, including patient-derived cells, organoids, and isolated nuclei. The wet-lab protocol can be completed in 1.5 weeks, and it is suitable for researchers with intermediate expertise in molecular biology and genomics. For the computational analyses, basic-to-intermediate bioinformatics expertise is required.

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Genome-wide detection of DNA double-strand breaks by in-suspension BLISS

Project description:Genome-wide detection of DNA double-strand breaks by in-suspension BLISS

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Genexpression of murine mesothelioma cell lines AC29 and AB1

Project description:RNA from two murine mesothelioma cell lines (AC29 and AB1) was extracted and hybridized to Affymetrix Microarrays to compare gene expression. Both mesothelioma cell lines were established following intraperitoneal introduction of crocidolite (asbestos) fibers (Davis et al. 1992) in CBA mice (AC29 cell line), and BALB/c mice (AB1).

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Mesothelioma-associated fibroblasts enhance proliferation and migration of malignant pleural mesothelioma cells via Met/PI3K and WNT signaling but do not protect against cisplatin

Project description:Malignant pleural mesothelioma (MPM) is an aggressive malignancy with poor prognosis. Unlike many other cancers, MPM is mostly characterized by inactivation of tumor suppressor genes. Its highly malignant nature in absence of tumor driving oncogene mutations indicates an extrinsic supply of stimulating signals by cells of the tumor microenvironment (TME). Cancer-associated fibroblasts (CAFs) are an abundant cell type of the TME and have been shown to drive the progression of several cancer types. The aim of the current study was to isolate and characterize patient-derived mesothelioma-associated fibroblasts (Meso-CAFs), and evaluate their impact on MPM cells.

2022-12-31 | E-MTAB-12179 | biostudies-arrayexpress

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