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Human nucleus pulposus cell LC-MS/MS

ABSTRACT: To identify PPP1CA interactome in human nucleus pulposus cell

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Primary Cell

SUBMITTER: Huaizhen Liang

LAB HEAD: Cao Yang

PROVIDER: PXD042397 | Pride | 2023-10-24

REPOSITORIES: Pride

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Publications

Lysine methylation of PPP1CA by the methyltransferase SUV39H2 disrupts TFEB-dependent autophagy and promotes intervertebral disc degeneration.

Liang Huaizhen H Luo Rongjin R Li Gaocai G Zhang Weifeng W Zhu Dingchao D Wu Di D Zhou Xingyu X Tong Bide B Wang Bingjin B Feng Xiaobo X Wang Kun K Song Yu Y Yang Cao C

Cell death and differentiation 20230821 9

Impaired transcription factor EB (TFEB) function and deficient autophagy activity have been shown to aggravate intervertebral disc (IVD) degeneration (IDD), yet the underlying mechanisms remain less clear. Protein posttranslational modifications (PTMs) are critical for determining TFEB trafficking and transcriptional activity. Here, we demonstrate that TFEB activity is controlled by protein methylation in degenerated nucleus pulposus cells (NPCs), even though TFEB itself is incapable of undergoi ...[more]

PMID: 37605006

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human nucleus pulposus cell LC-MS/MS

Project description:To investigate whether SUV39H2 binds to PPP1CA in nucleus pulposus cells

2023-10-24 | PXD042152 | Pride

human nucleus pulposus cell LC-MS/MS

Project description:To identify the TFEB binding protein and TFEB methylation status

2023-10-24 | PXD042438 | Pride

Expression data from synovium, bone marrow and nucleus pulposus

Project description:Synovial and bone marrow mesenchymal stem cells after intradiscally injection show regenerative effects of nucleus pulposus. Microarray analyses of rats were performed to investigate the closeness of the gene profiles between the nucleus pulposus cells and the synovial or bone marrow mesenchymal stem cells. To investigate interaction between synovial mesenchymal stem cells and nucleus pulposus cells, human synovial mesenchymal stem cells and rat nucleus pulposus cells were co-cultured, and species specific microarray were performed. Synovium of knee joints, bone marrow and nucleus pulposus were harvested from rat or human, and cells were isolated for RNA extraction and hybridization on Affymetrix microarrays. To compare the gene profiles each other, isolated cells were mono-cultured respectively, and human synovial mesenchymal stem cells and rat nucleus pulposus cells were co-cultured.

2010-10-11 | E-GEOD-24612 | biostudies-arrayexpress

MicroRNAs expression profiling of human nucleus pulposus cells: control vs. degeneration

Project description:MicroRNAs expression profiling of human nucleus pulposus cells derived from patients with disc degeneration in comparison with those derived from patients with scoliosis as control. Two-condition experiment: control nucleus pulposus cells vs. degenerative nucleus pulposus cells. Biological replicates: 3 control, 3 degenerated, independently harvested. Four replicates per array. The supplementary file 'GSE19943_fold_pvalue.txt' contains fold-changes and p-values.

2012-01-01 | E-GEOD-19943 | biostudies-arrayexpress

Expression data from bovine nucleus pulposus interverteral disc cells

Project description:Assessment of the putative differential gene expression profiles in high osmolality-treated bovine nucleus pulposus intervertebral disc cells for a short (5 h) and a long (24 h) time period. Identification of novel genes up- or down-regulated as an early or a late response to hyperosmotic stress. A 5 and 24 h-hyperosmotic treatment of nucleus pulposus cells led to transcriptional changes in >100 and 200 genes, respectively. Nucleus pulposus intervertebral disc cells were exposed to hyperosmotic stress for 5 and 24 h before RNA extraction and transcriptomics analysis. Three biological replicates were tested for each condition. Selected genes found to be differentially expressed were validated by RT-qPCR. Functional experiments were performed in order to assess the role of specific proteins encoded by genes found to be up-regulated in the osmo-reguatory response of intervertebral disc cells.

2015-06-19 | E-GEOD-59485 | biostudies-arrayexpress

Single cell sequencing of human nucleus pulposus

Project description:In order to discover the cell type in nucleus pulposus and find the cell type specific genetic change during intervertebral disc degeneration, we applied single cell RNA sequencing of nucleus pulposus tissue from degenerated and non-degenerated disc.

2023-12-31 | GSE153066 | GEO

Expression data from synovium, bone marrow and nucleus pulposus

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Tagln+ progenitors contribute to the development and maintenance of nucleus pulposus

Project description:Failure of intervertebral disc components, e.g. the nucleus pulposus causes intervertebral disc disease and associated low-back pain. Despite the high prevalence of disc disease, the changes in intervertebral disc cells and their regenerative potential with ageing and degeneration are not fully elucidated. Understanding the cell lineage, cell differentiation and maintenance of nucleus pulposus may have therapeutic application for the regeneration of degenerative disc, with significant impact for healthy ageing. Here we found that TAGLN expressing cells are present in human healthy nucleus pulposus, but diminish in degenerative disc. By lineage analyses in mice, we found cells in the nucleus pulposus are derived from a peripherally located population of notochord-derived Tagln expressing cells (PeriNP cells). The PeriNP cells are proliferative and can differentiate into the inner part of the nucleus pulposus. The Tagln+ cells and descendants diminish during aging and puncture induced disc degeneration. The maintenance and differentiation of PeriNP cells is partially regulated by Smad4 dependent signaling. Removal of Smad4 by nucleus pulposus specific Cre (Foxa2mNE-Cre), results in decreased Tagln+ cells and abnormal disc morphology, leading to disc degeneration. Our findings propose that the PeriNP Tagln expressing cells are a pool of notochord-derived progenitors that are important for maintenance of the nucleus pulposus and provide insights for regenerative therapy against intervertebral disc degeneration.

2024-05-14 | GSE186549 | GEO

Effect of recombinant Shh on gene expression of primary rat nucleus pulposus cells

Project description:In order to study the effect of recombinant Shh (rShh) on nucleus pulposus cells, primary nucleus pulposus cells from SD rats were obtained.Then, nucleus pulposus cells were treated with rShh at 200 ng/ml(dissolved in dmso) for 48h. Similarly, we treated nucleus pulposus cells with the same concentration of DMSO as the control group, and analyzed the data of 3 biological repeats of RNA-seq in each group for gene expression profile analysis.

2022-11-10 | GSE217505 | GEO

Expression data from bovine nucleus pulposus interverteral disc cells

2015-06-19 | GSE59485 | GEO