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The salivary proteome in relation to oral mucositis in autologous hematopoietic stem cell transplantation recipients: a labelled and label-free proteomics approach-DDALFQ

ABSTRACT: Decreased salivary flow rates and/or changes in protein composition reported after autologous hematopoietic stem cell transplantation (ASCT) reduces the protective function of saliva. This might be associated with the development of oral mucositis (OM), an inflammation of the oral mucosa as a result of chemotherapy before ASCT which affects patients? quality of life and risk factor for systemic infections. In this study, a TMT-labelled proteomics experiment, a label-free quantification (LFQ) proteomics experiment and a DIA-MS proteomics experiment were used to identify differences in the salivary proteome between patients with ulcerative OM (uOM; WHO score ? 2) and those without (nOM). For the TMT-labelled experiment, saliva samples of 5 uOM and 5 nOM were pooled at different time points: baseline, 1, 2, and 3 weeks after ASCT and 3 months after ASCT. A different salivary proteome was suggested by a distinct clustering of the OM pools at baseline, week 2 and week 3 after ASCT.

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Homo Sapiens (human) Human Oral Bacteria Ensemble

TISSUE(S): Saliva

DISEASE(S): Mucositis

SUBMITTER: An Staes

LAB HEAD: Nicole M.A. Blijlevens

PROVIDER: PXD033591 | Pride | 2023-07-10

REPOSITORIES: Pride

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The salivary proteome in relation to oral mucositis in autologous hematopoietic stem cell transplantation recipients: a labelled and label-free proteomics approach-TMTdata

Project description:Decreased salivary flow rates and/or changes in protein composition reported after autologous hematopoietic stem cell transplantation (ASCT) reduces the protective function of saliva. This might be associated with the development of oral mucositis (OM), an inflammation of the oral mucosa as a result of chemotherapy before ASCT which affects patients? quality of life and risk factor for systemic infections. In this study, a TMT-labelled proteomics experiment, a label-free quantification (LFQ) proteomics experiment and a DIA-MS proteomics experiment were used to identify differences in the salivary proteome between patients with ulcerative OM (uOM; WHO score ? 2) and those without (nOM). For the TMT-labelled experiment, saliva samples of 5 uOM and 5 nOM were pooled at different time points: baseline, 1, 2, and 3 weeks after ASCT and 3 months after ASCT. A different salivary proteome was suggested by a distinct clustering of the OM pools at baseline, week 2 and week 3 after ASCT.

2023-07-10 | PXD033603 | Pride

The salivary proteome in relation to oral mucositis in autologous hematopoietic stem cell transplantation recipients: a labelled and label-free proteomics approach -DIAdata

Project description:Decreased salivary flow rates and/or changes in protein composition reported after autologous hematopoietic stem cell transplantation (ASCT) reduces the protective function of saliva. This might be associated with the development of oral mucositis (OM), an inflammation of the oral mucosa as a result of chemotherapy before ASCT which affects patients, quality of life and risk factor for systemic infections. In this study, a TMT-labelled proteomics experiment, a label-free quantification (LFQ) proteomics experiment and a DIA-MS proteomics experiment were used to identify differences in the salivary proteome between patients with ulcerative OM (uOM; WHO score 2) and those without (nOM).

2023-07-10 | PXD033525 | Pride

Crenigacestat inhibits osteogenic differentiation of human valve interstitial cells and seems promising for treatment of cardiovascular calcification

Project description:Vascular calcification is common pathology various forms of which presented in the half of humans. Calcific aortic valve disease (CAVD) is one of the most dangerous forms of vascular calcification. Despite high mortality there is no target therapy against CAVD. Thus, we tested crenigacestat (LY3039478), inhibitor of Notch-signaling, and shRNA against RBPJk for inhibition of osteogenic differentiation of velve intersticial cells (VICs) in vitro. Both of them effectivelly enhibited osteogenic differentiation and we performed proteomics analysis do describe molecular mechanisms of their effect. Presented dataset contain results of shotgun proteomics analysis with ion mobility in TimsToF Pro instrument (in DDA PASEF mode) of VICs in classic osteogenic medium (OM) and OM supplemented with crenigacestat, DMSO or shCSL.

2022-10-04 | PXD029632 | Pride

Osteogenic human MSC-derived extracellular vesicles regulate MSC activity and osteogenic differentiation and promote bone regeneration in a rat calvarial defect model

Project description:The objective of this study was to explore the characteristics and roles of extracellular vesicles (EVs) obtained from human mesenchymal stem cells (MSCs) under two culture conditions: undifferentiated MSCs (Naïve-EVs) and MSCs undergoing early-stage osteogenesis (Osteo-EVs). Additionally, the study aimed to evaluate the potential of Osteo-EVs to induce bone formation for the purpose of regenerating bone defects in rat calvaria. To accomplish these goals, EVs from both groups were isolated using a technique called size-exclusion chromatography. The isolated EVs were then subjected to various analyses to gain insights into their properties. This included examining their size distribution, morphology, flow cytometry analysis, and proteome profiling using liquid chromatography-tandem mass spectrometry (LC-MS/MS) with Label Free Quantification.

2024-01-10 | PXD043335 | Pride

Whole saliva baseline proteome profile - head and neck cancer

Project description:Oral mucositis (OM) is a common, painful and often treatment-limiting side effect of radiotherapy (RT) for head and neck cancer (HNC) patients. Unstimulated saliva was collected before the first radiotherapy application in 50 HNC patients. 41 out of 50 patients developed OM (grade III) during radiotherapy, of which 14 patients even displayed an early OM (grade III) at low radiation dose of 30 Gy. Nine patients did not develop OM (grade III). Using an LC-MS/MS approach 5,323 tryptic peptides were assigned to 487 distinct proteins (≥2 peptides) in the data set. The levels of 48 proteins differed significantly (p<0.05) between patients developing OM or not. 17 proteins displayed increased levels (≥1.3-fold) and 31 proteins decreased in level in OM, respectively. Furthermore, using partial least square analysis proteins patterns could be used to distinguish subjects which did not develop grade III OM even after 70 Gy total dose (n=9) and those displaying early OM (grade III at <30 Gy total dose, n=14). Using leave one out cross validation 37 of 41 patients (90%) developing OM could be correctly assigned indicating that prognostic proteome signatures may help to identify patients that should be specifically monitored to increase overall effectiveness of RT treatment.

2016-07-04 | PXD003230 | Pride

iTRAQ-based proteomic analysis of dentate gyrus in temporal lobe epilepsy with hippocampal sclerosis

Project description:Temporal lobe epilepsy (TLE) is the most frequent type of focal epilepsy in adults, typically resistant to pharmacological treatment and mostly present with cognitive impairment and psychiatric comorbidities. The most common neuropathological hallmark in TLE patients is hippocampal sclerosis(HS). However, the underlying molecular mechanisms involved remain poorly characterized. Dentate gyrus(DG), one specific hippocampal subarea, structural and functional changes imply a key involvement of the DG in the development of TLE. In this study, isobaric tags for relative and absolute quantitation (iTRAQ) -based quantitative proteomic technique was performed to analysis of hippocampal DG obtained from patients with TLE-HS compared to control samples obtained from the autopsy. Our proteomic data identified 5583 proteins, of which 82 proteins were up-regulated and 90 proteins were down-regulated. Bioinformatics analysis indicated that differential expressed proteins enriched in “synaptic vesicle”, “mitochondrion”, “cell-cell adhesion”, “regulation of synaptic plasticity”, “ATP binding” and “Oxidative phosphorylation”. Protein-protein interaction network analysis found a pivotal module of 10 proteins that relate to “Oxidative phosphorylation”. This study is the first to investigate proteomic alterations in DG region of TLE-HS patients, and pave the way to better understanding of epileptogenesis mechanisms and future therapeutic intervention.

2021-01-18 | PXD023048 | Pride

Gene expression profiling in whole blood in patients for KlinefelterM-bM-^@M-^Ys Syndrome

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2013-09-01 | E-GEOD-47584 | biostudies-arrayexpress

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2018-10-17 | PXD004429 | Pride

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2023-10-24 | PXD023971 | Pride

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