Relationships among murine CD11c(high) dendritic cell subsets as revealed by baseline gene expression patterns.
نویسندگان
چکیده
The functional relationships and properties of different subtypes of dendritic cells (DC) remain largely undefined. To better characterize these cells, we used global gene analysis to determine gene expression patterns among murine CD11c(high) DC subsets. CD4(+), CD8alpha(+), and CD8alpha(-) CD4(-) (double negative (DN)) DC were purified from spleens of normal C57/BL6 mice and analyzed using Affymetrix microarrays. The CD4(+) and CD8alpha(+) DC subsets showed distinct basal expression profiles differing by >200 individual genes. These included known DC subset markers as well as previously unrecognized, differentially expressed CD Ags such as CD1d, CD5, CD22, and CD72. Flow cytometric analysis confirmed differential expression in nine of nine cases, thereby validating the microarray analysis. Interestingly, the microarray expression profiles for DN cells strongly resembled those of CD4(+) DC, differing from them by <25 genes. This suggests that CD4(+) and DN DC are closely related phylogenetically, whereas CD8alpha(+) DC represent a more distant lineage, supporting the historical distinction between CD8alpha(+) and CD8alpha(-) DC. However, staining patterns revealed that in contrast to CD4(+) DC, the DN subset is heterogeneous and comprises at least two subpopulations. Gene Ontology and literature mining analyses of genes expressed differentially among DC subsets indicated strong associations with immune response parameters as well as cell differentiation and signaling. Such associations offer clues to possible unique functions of the CD11c(high) DC subsets that to date have been difficult to define as rigid distinctions.
منابع مشابه
Relationships Among Murine CD11c Dendritic Cell Subsets as Revealed by Baseline Gene Expression Patterns
متن کامل
القای سلول‌های دندریتیک تولروژن موشی با تنظیم کاهشی ملکول کمک تحریکی CD40 با استفاده از وکتور لنتی ویروس
Induction of Tolerogenic Murine Dendritic Cells by Downregulating the Co-stimulatory Molecule of CD40 Using Lentivirus Vector Mahmoodzadeh A1, Pourfatollah AA1, Karimi MH2, Moazzeni SM1 1Dept. of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran 2Transplantation Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran. Correspond Aut...
متن کاملOptimizing Dendritic Cell Preparation for Fusion with Melanoma Cells
Background: Fusion of dendritic cells (DCs) with melanoma cells could reinforce the antigenicity of tumors as a strategy for the treatment of malignant melanoma. However, the insufficient quantity of DCs and the low fusion efficiency limits the development of such approach. Objective: To define the dosage of the stimulating factors as well as the induction condition for the optimal DCs prepara...
متن کاملRedefining Myeloid Cell Subsets in Murine Spleen
Spleen is known to contain multiple dendritic and myeloid cell subsets, distinguishable on the basis of phenotype, function and anatomical location. As a result of recent intensive flow cytometric analyses, splenic dendritic cell (DC) subsets are now better characterized than other myeloid subsets. In order to identify and fully characterize a novel splenic subset termed "L-DC" in relation to o...
متن کاملPhenotypic, Ultra-Structural, and Functional Characterization of Bovine Peripheral Blood Dendritic Cell Subsets
Dendritic cells (DC) are multi-functional cells that bridge the gap between innate and adaptive immune systems. In bovine, significant information is lacking on the precise identity and role of peripheral blood DC subsets. In this study, we identify and characterize bovine peripheral blood DC subsets directly ex vivo, without further in vitro manipulation. Multi-color flow cytometric analysis r...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of immunology
دوره 171 1 شماره
صفحات -
تاریخ انتشار 2003