title: Novel molecular signatures in mononuclear cell populations from patients with systemic lupus erythematosus.
abstract: To gain novel insights into the immunopathogenesis of systemic lupus erythematosus we have analyzed gene expression data from isolated CD4+T cells, CD8+T cells, CD19+B cells, and CD56+NK-cell enriched peripheral blood cell fractions from patients and healthy donors. As predicted, type I interferon-inducible gene transcripts are overexpressed in all populations. Transcripts preferentially expressed in SLE CD4+and CD8+T cells include those associated with Tregulatory and Th17 effector cell programs, respectively, but in each case additional transcripts predicted to limit differentiation of those effector cells are detected. Evidence for involvement of the Wnt/β-catenin pathway was observed in both B and T cell fractions, and novel transcripts were identified in each cell population. These data point to disrupted T effector cell differentiation and the Wnt/β-catenin pathway as contributors to immune dysfunction in SLE while further supporting a central role for the type I interferon pathway in lupus.
authors: Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.
authors: Mikhail
authors: M
authors: Olferiev
authors: Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.
authors: Elzbieta
authors: E
authors: Jacek
authors: Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.
authors: Kyriakos A
authors: KA
authors: Kirou
authors: Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA. Electronic address: crowm@hss.edu.
authors: Mary K
authors: MK
authors: Crow
mesh_terms: D000328:Adult; D002454:Cell Differentiation; D005260:Female; D015870:Gene Expression; D006801:Humans; D007370:Interferon Type I / Q000276:immunology*; D007963:Leukocytes, Mononuclear / Q000166:cytology* / Q000276:immunology* / Q000378:metabolism; D008180:Lupus Erythematosus, Systemic / Q000235:genetics / Q000276:immunology*; D008875:Middle Aged; D060449:Wnt Signaling Pathway / Q000276:immunology*; D055815:Young Adult
chemical_list: D007370:Interferon Type I
keywords: Gene expression analysis; Microarray; Systemic lupus erythematosus; T effector cells; Type I interferon; Wnt/β-catenin