Project description:We performed spatial transcriptomics on a case series of different clinical subtypes of cutaneous lupus erythematosus including acute cutaneous lupus erythematosus (malar rash, systemic lupus erythematosus). Our goals were to (1) determine which differentially expressed genes (DEGs) could be attributed to specific cell populations in specific locations within the tissue, (2) determine if spatial transcriptomics could better distinguish between CLE clinical subtypes than bulk RNA approaches and (3) examine potential cell-cell communication pathways within the skin lesions.
Project description:We performed a comparative immunology case study of client-owned dogs to determine if immune and skin gene expression profiles in spontaneous canine chronic cutaneous lupus erythematosus (CCLE) with concomitant systemic autoimmunity mirror those observed in human CCLE.
Project description:Lesional skin biopsies were taken from patients with active, untreated lupus skin disease (chronic discoid lupus erythematosus, CDLE, n=6; subacute cutaneous lupus erythematosus, SCLE, n=5). Healthy control specimens (HC) were obtained from healthy skin of 5 patients undergoing plastic surgery. In every case, two 4mm punch biopsies were taken. One was flash-frozen in liquid nitrogen and afterwards processed for mRNA isolation. The second biopsy was fixed in 5% formalin solution overnight, and was proceeded for histological investigation.The one-color Agilent 60-mer oligo microarray (Agilent, Santa Clara, CA) was used for gene expression analyses. Statistical analyses were performed using the Agilent Feature Extraction Software⢠and the Rosetta Resolver⢠gene expression data analysis system. The presented gene list (Table S1) includes normalized sample/ control log10-ratios (expression > 2-fold enhanced, p<0.01).
Project description:RNA-seq analysis of nonlesional skin, whole blood, and cultured primary keratinocytes of wild-type and autoimmunity-prone K5-Vgll3 mice, which overexpress the female-biased transcription cofactor VGLL3 in the epidermis and develop a progressive lupus-like rash and systemic autoimmune disease with features of systemic lupus erythematosus. These skin and blood data demonstrate that skin-directed overexpression of VGLL3 results in gene expression changes strikingly similar to those seen in skin and blood of patients with cutaneous and systemic lupus, respectively.
Project description:To screen specific DNA methylation markers in systemic lupus erythematosus (SLE) patient's blood DNA, whole-blood DNAs from 6 female SLE patients and 6 female controls were analyzed by methylation microarray.
Project description:Gene expression profiling of peripheral blood cells from patients with systemic lupus erythematosus (SLE) vs healthy individual (HI).
Project description:We performed a comparative immunology case study of client-owned dogs to determine if immune and skin gene expression profiles in spontaneous canine cutaneous lupus erythematosus mirror those observed in human cutaneous lupus.
Project description:Study of high-density lipoproteins using 6 human plasma samples. The study sought to find small RNA signatures in systemic erythematosus lupus.
Project description:Gene expression profiling of peripheral blood cells from patients with systemic lupus erythematosus (SLE) vs healthy individual (HI). Peripheral blood was obtained from patients with SLE (n=21) and HI (n=45). Blood samples from 45 HI are used as control.