Publications by authors named "David Vanderwall"

Article Synopsis
  • - The study analyzes age-dependent changes in the brain proteins and their modifications in several mouse models of Alzheimer's disease (AD), focusing on how these models represent human AD complexities.
  • - Results showed that commonly used mouse models only replicate about 30% of the protein changes seen in humans, but adding more genetic factors can increase this to 42%.
  • - The research highlights inconsistencies between protein and gene expression in the 5xFAD model, indicating that amyloid plaque environments affect protein turnover, which could lead to new targets for AD treatment.
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Epstein-Barr virus (EBV) causes infectious mononucleosis, triggers multiple sclerosis, and is associated with 200,000 cancers/year. EBV colonizes the human B cell compartment and periodically reactivates, inducing expression of 80 viral proteins. However, much remains unknown about how EBV remodels host cells and dismantles key antiviral responses.

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Article Synopsis
  • * Tspan8 is downregulated in ulcerative colitis in mice, which disrupts cell junctions and increases epithelial permeability, thereby upregulating Stat1 signaling.
  • * Tspan8 is linked to lipid rafts and influences the endocytosis route of the IFN-γ receptor, which helps maintain intestinal epithelial integrity and minimizes inflammation.
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Background: Mass spectrometry (MS)-based proteomic analysis of posttranslational modifications (PTMs) usually requires the pre-enrichment of modified proteins or peptides. However, recent ultra-deep whole proteome profiling generates millions of spectra in a single experiment, leaving many unassigned spectra, some of which may be derived from PTM peptides.

Methods: Here we present JUMPptm, an integrative computational pipeline, to extract PTMs from unenriched whole proteome.

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Tandem mass tag (TMT) mass spectrometry is a mainstream isobaric chemical labeling strategy for profiling proteomes. Here we present a 29-plex TMT method to combine the 11-plex and 18-plex labeling strategies. The 29-plex method was examined with a pooled sample composed of 1×, 3×, and 10× Escherichia coli peptides with 100× human background peptides, which generated two E.

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With recent advances in mass spectrometry-based proteomics technologies, deep profiling of hundreds of proteomes has become increasingly feasible. However, deriving biological insights from such valuable datasets is challenging. Here we introduce a systems biology-based software JUMPn, and its associated protocol to organize the proteome into protein co-expression clusters across samples and protein-protein interaction (PPI) networks connected by modules (e.

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Mass spectrometry-based proteomics empowers deep profiling of proteome and protein posttranslational modifications (PTMs) in Alzheimer's disease (AD). Here we review the advances and limitations in historic and recent AD proteomic research. Complementary to genetic mapping, proteomic studies not only validate canonical amyloid and tau pathways, but also uncover novel components in broad protein networks, such as RNA splicing, development, immunity, membrane transport, lipid metabolism, synaptic function, and mitochondrial activity.

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