We study the global gene expression profiles of BKV viremia and nephropathy patients using microarrays in order to better understand the immunologic response to polyomavirus BK (BKV).
Genomics of BK viremia in kidney transplant recipients.
Specimen part, Disease
View SamplesWe investigated the clinical, histopathologic and genomic features of donor-specific antibody (DSA) +/C4d- and DSA-/C4d- transplant glomerulopathy (TGP) using microarrays. Comparison of the gene expression profiles of DSA-/C4d- TGP biopsies with ptc+g score > 1 to normal and IFTA (Interstitial Fibrosis and Tubular Atrophy) biopsies by microarrays revealed increased expression of quantitative cytotoxic T cell--associated transcripts (QCAT). However, CAMR (chronic antibody-mediated rejection) and DSA+/C4d- TGP had increased expression of QCAT, interferon-gamma and rejection induced, constitutive macrophage-associated, natural killer cell-associated, and DSA selective transcripts. B cell and endothelial cell associated transcripts expression were upregulated only in CAMR biopsies. Our results suggest that while DSA+/C4d- TGP should be classified under CAMR, DSA-/C4d- TGP with ptc+g score > 1 probably develops through a chronic cellular immune response.
The clinical and genomic significance of donor-specific antibody-positive/C4d-negative and donor-specific antibody-negative/C4d-negative transplant glomerulopathy.
Specimen part
View SamplesWe study the global gene expression profiles of TGP patients with or without graft loss to determine if a clinical and/or gene expression profile can predict allograft survival.
Clinical, Histological, and Molecular Markers Associated With Allograft Loss in Transplant Glomerulopathy Patients.
Specimen part
View SamplesThe presence of Donor-Specific anti-HLA Antibodies (DSA) is associated with an increased risk of both acute and chronic antibody-mediated rejection (AMR) in kidney allografts. AMR has remained challenging in kidney transplantation and is the major cause of late allograft loss. However, not all patients with DSA develop AMR, leading to the question of whether this represents accommodation, if other protective mechanisms exist or if this is actually a state of pre-rejection.
A pathogenesis-based transcript signature in donor-specific antibody-positive kidney transplant patients with normal biopsies.
Specimen part
View SamplesWe describe the viral gene expression cascade at the single-cell level, showing bifurcations and bottleneck states. Host gene expression changes are related to viral transcription. The role of cellular signaling pathways in infection is studied using trajectory analysis and the importance of the Nrf2 transcription factor studied in follow-up experiments. Overall design: Human primary fibroblasts were infected with HSV-1 and single-cell RNA-sequencing was performed at different early time points after infection.
Single-cell RNA-sequencing of herpes simplex virus 1-infected cells connects NRF2 activation to an antiviral program.
Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Conservation and divergence in Toll-like receptor 4-regulated gene expression in primary human versus mouse macrophages.
Sex, Specimen part, Treatment
View SamplesThese microarrays were performed for use in a genome-wide scan for LPS-regulated genes in mouse macrophages, in order to construct a list of LPS-regulated genes for detailed interrogation on custom microarrays (see GSE19490 for custom array analysis).
Conservation and divergence in Toll-like receptor 4-regulated gene expression in primary human versus mouse macrophages.
Specimen part
View SamplesThese microarrays were performed for use in a genome-wide scan for LPS-regulated genes in human monocyte-derived macrophages, in order to construct a list of LPS-regulated genes for detailed interrogation on custom microarrays (see GSE19482 for custom array analysis).
Conservation and divergence in Toll-like receptor 4-regulated gene expression in primary human versus mouse macrophages.
Specimen part
View SamplesAge-dependent electrical and morphological remodeling of the Drosophila heart caused by hERG/seizure mutations
Age-dependent electrical and morphological remodeling of the Drosophila heart caused by hERG/seizure mutations.
No sample metadata fields
View SamplesIn this study, we sought to determine how IL-17 and TNF influence normal human melanocytes, either alone, or with both cytokines together. We reveal a dichotomous effect of IL-17 and TNF, which not only elicit essential mitogenic cytokines but also suppress melanogenesis by down-regulating genes of melanogenesis pathway
IL-17 and TNF synergistically modulate cytokine expression while suppressing melanogenesis: potential relevance to psoriasis.
Specimen part, Treatment, Time
View Samples