IEX fractionated proteome of pig tracheal cilia extract
Ontology highlight
ABSTRACT:
INSTRUMENT(S): Orbitrap Fusion Lumos
ORGANISM(S): Sus Scrofa (ncbitaxon:9823)
SUBMITTER: 
Edward Marcotte
PROVIDER: MSV000091856 | MassIVE | Thu May 04 06:54:00 BST 2023
SECONDARY ACCESSION(S): PXD041980
REPOSITORIES: MassIVE
Similar Datasets
Project description:Cilia were isolated from Tetrahymena thermophila SB715 by pH shock. Soluble ciliary proteins were extracted in buffer containing 1% NP40 and fractionated by HPLC SEC or mixed bed IEX. All fractions were reduced/alkylated and digested with trypsin for LC-MS/MS on an Orbitrap Fusion using a DDA 75 minute top speed CID method. Data were processed using MS Blender.
2023-04-05 | MSV000091648 | MassIVE
Project description:Tetrahymena thermophil SB715 were deciliated by pH shock, collected by centrifugation, washed once and flash frozen. Lysate was made by grinding in liquid nitrogen and resuspension in buffer containing 0.2% NP40 with pipetting. Lysate was clarified by sequential centrifugations including 1 hour 130,000 x g 4C. Clarified lysate was fractionated by HPLC SEC or diluted to reduce salts to 22mM NaCl prior to fractionation by mixed-bed IEX. Fractions were reduced/alkylated and digested with trypsin for DDA LC-MS/MS. Data from SEC fractions was collected on an Orbitrap Fusion Lumos using a 75 minute top speed HCD method. Data from IEX fractions was collected on an Orbitrap Fusion using a 75 minute Topspeed CID method.
2023-04-07 | MSV000091661 | MassIVE
Project description:Background: Whereas cilia damage and reduced cilia beat frequency have been implicated as causative of reduced mucociliary clearance in smokers, theoretically mucociliary clearance could also be affected by cilia length. Based on models of mucociliary clearance predicting cilia length must exceed the 6 -7 μm airway surface fluid depth to generate force in the mucus layer, we hypothesized cilia height may be decreased in airway epithelium of normal smokers compared to nonsmokers. Methodology/Principal Findings: Cilia length in normal nonsmokers and smokers was evaluated in aldehyde-fixed, paraffin-embedded endobronchial biopsies, and air-dried and hydrated samples brushed from human airway epithelium via fiberoptic bronchoscopy. In 28 endobronchial biopsies, healthy smoker cilia length was reduced 15% compared to nonsmokers (p<0.05). In 47 air-dried samples of airway epithelial cells, smoker cilia length was reduced 13% compared to nonsmokers (p<0.0001). Analysis of the length of individual, detached cilia in 17 samples, smoker cilia length was reduced 9% compared to nonsmokers (p<0.05). Finally, in 16 fully hydrated, unfixed samples, smoker cilia length was reduced 7% compared to nonsmokers (p<0.05). Conclusions/significance: Models predict that a reduction in cilia length would reduce mucociliary clearance, suggesting that smoking-associated shorter airway epithelial cilia plays a significant role in the pathogenesis of smoking-induced lung disease.
2012-12-13 | E-GEOD-16696 | biostudies-arrayexpress
Project description:Procedure details are reported in McCafferty et al. eLife2022;11e81977. Briefly cilia extract from Tetrahymena thermophila SB715 was fractionated on a mixed bed IEX HPLC column and all resulting fractions were crosslinked by addition of DSSO to 0.5mM. Following reduction, alkylation, trypsin digestion, and desalting, mass spectra were collected on an Orbitrap Fusion Lumos using a DDA MS2-MS3 method and spectra were processed in ProteomeDiscoverer 2.3 using the Xlinkx node to identify crosslinks. The look-up database for crosslink identification was generated from the same .RAW files using a standard Basic workflow to identify proteins present in the fractions.
2023-04-20 | MSV000091761 | MassIVE
Project description:Tetrahymena thermophila SB715 were deciliated by pH shock substituting HEPES for Tris in all subsequent buffers. Ciliry proteins were solubilized with buffer containing 1%NP40, and fractionated by HPLC on a mixed-bed IEX column. DSSO was added to 0.5 mM to all collected fractions. Crosslinking was quenched with Tris pH 8.0 at 28 mM and fractions were reduced, alkylated, and digested with trypsin for mass spectrometry. Spectra were collected on an Orbitrap Fusion Lumos using a DDA MS2-MS3 method for both protein and crosslink identification. Data in this deposition include the RAW files and MSBlender pipeline files used for protein identification. Crosslink analysis will be deposited separately.
2023-04-13 | MSV000091710 | MassIVE
Project description:Background: Whereas cilia damage and reduced cilia beat frequency have been implicated as causative of reduced mucociliary clearance in smokers, theoretically mucociliary clearance could also be affected by cilia length. Based on models of mucociliary clearance predicting cilia length must exceed the 6 -7 μm airway surface fluid depth to generate force in the mucus layer, we hypothesized cilia height may be decreased in airway epithelium of normal smokers compared to nonsmokers. Methodology/Principal Findings: Cilia length in normal nonsmokers and smokers was evaluated in aldehyde-fixed, paraffin-embedded endobronchial biopsies, and air-dried and hydrated samples brushed from human airway epithelium via fiberoptic bronchoscopy. In 28 endobronchial biopsies, healthy smoker cilia length was reduced 15% compared to nonsmokers (p<0.05). In 47 air-dried samples of airway epithelial cells, smoker cilia length was reduced 13% compared to nonsmokers (p<0.0001). Analysis of the length of individual, detached cilia in 17 samples, smoker cilia length was reduced 9% compared to nonsmokers (p<0.05). Finally, in 16 fully hydrated, unfixed samples, smoker cilia length was reduced 7% compared to nonsmokers (p<0.05).
2012-12-13 | GSE16696 | GEO
Project description:Analysis of epithelial explants injected with the intracellular domain of Notch (ICD) to block the formation of multi-ciliate cells, either alone or along with FoxJ1. FoxJ1 misexpression leads to the induction fo ectopic cilia in Xenopus laevis epithelia. Results show which genes are affected by FoxJ1 during the induction of ectopic cilia. Ciliated cells that produce a leftward fluid flow have been proposed to mediate left-right patterning in many vertebrate embryos. These cilia combine features of primary sensory and motile cilia, but how such cilia are specified is unknown. We address this issue by analyzing the Xenopus and Zebrafish homologs of FoxJ1, a forkhead transcription factor necessary for ciliogenesis in multi-ciliate cells of the mouse. We show that the cilia that underlie left-right patterning on the Xenopus gastrocoel roof plate (GRP) and Zebrafish Kupffer’s vesicle (KV) are severely shortened or fail to form in FoxJ1 morphants. We also show that misexpressing XFoxJ1 is sufficient to induce ectopic GRP-like cilia formation in frog embryos. Microarray analysis indicates that XFoxJ1 induces the formation of cilia by upregulating the expression of motile cilia genes. These results indicate that FoxJ1 is a critical determinant in specifying cilia used in left-right patterning. Keywords: Cilia Induction
2008-09-15 | GSE12613 | GEO
Project description:Study Smoking and COPD are associated with decreased mucociliary clearance and healthy smokers have shorter cilia in the large airway than nonsmokers. Intraflagellar transport (IFT) is the process by which cilia are produced and maintained. We assessed expression of IFT-related genes in smokers and nonsmokers and evaluated cilia length in the large and small airway of nonsmokers, healthy smokers, and smokers with COPD. Methods Airway epithelium was obtained via bronchoscopic brushing. Affymetrix microarrays were used to evaluate IFT gene expression in 2 independent data sets from large and small airway. Cilia length was assessed by measuring 100 cilia (10 cilia on each of 10 cells) per subject. Results All 40 IFT genes were expressed in the human large and small airway epithelium. In the large airway, 10 IFT genes were down-regulated and 1 up-regulated in smokers. In the small airway, 11 genes were down-regulated and 3 up-regulated in smokers. A set of 8 IFT genes was down-regulated in both data sets. In the large and small airway epithelium, cilia were significantly shorter in healthy smokers than nonsmokers, and significantly shorter in COPD smokers than in both healthy smokers and nonsmokers. Answer to the Question These results support the concept that loss of cilia length contributes to defective mucociliary clearance in COPD, and that smoking-induced changes in expression of IFT genes may be one mechanism of abnormally short cilia in smokers. Strategies to normalize cilia length may be an important avenue for novel COPD therapies. Gene expression was assessed for 40 intraflagellar transport related genes in the LAE of nonsmokers (n=21) and healthy smokers (n=31) and the SAE of an independent group of nonsmokers (n=28) and healthy smokers (n=69). Cilia length was assessed in a total of 228 airway epithelium samples, including 120 LAE samples and 108 SAE samples; a subset of the 228 samples is represented among the 149 samples in this Series.
2014-02-03 | E-GEOD-43939 | biostudies-arrayexpress
Project description:Mutations in CEP290, a large multidomain coiled coil protein, are associated with multiple cilia-associated syndromes. Over 130 CEP290 mutations have been linked to a wide spectrum of human ciliopathies, raising the question of how mutations in a single gene cause different disease syndromes. In zebrafish the expressivity of cep290 deficiencies were linked to the type of genetic ablation: acute cep290 morpholino knockdown caused severe cilia-related phenotypes while defects in a Crispr/Cas9 genetic mutant were restricted to photoreceptor defects. Here we show that milder phenotypes in genetic mutants were associated with upregulation of genes encoding the cilia-associated small GTPases arl3, arl13b, and unc119b. Upregulation of UNC119b was also observed in urine-derived renal epithelial cells from human JBTS CEP290 patients. Ectopic expression of arl3, arl13b and unc119b in cep290 morphant zebrafish embryos rescued Kupffer's vesicle cilia and partially rescued photoreceptor outer segment defects. The results suggest that genetic compensation by upregulation of genes involved in a common subcellular process, lipidated protein trafficking to cilia, may be a conserved mechanism contributing to genotype-phenotype variations observed in CEP290 deficiencies.
2021-05-26 | GSE175491 | GEO
Project description:We report that fortified levels of folic acid adversely affect cilia strucure and function. This data set agrees with previous experiements which have demonstrated that elevated folic acid levels can increase transcription variability on a genome-wide level. Furthermore, we demonstrate that among these dysregulated genes, genes contained within SYSgold cilia database are proportionally over-represented. This over-representation of cilia genes among dysregulated genes may play a key role in ciliopathys' sensitivity to elevated folic acid levels.
2020-08-15 | GSE137177 | GEO