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Medical Sciences

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Selected Works

2013

Dendritic

Articles 1 - 3 of 3

Full-Text Articles in Medicine and Health Sciences

Development Of Two Distinct Dendritic-Like Apcs In The Context Of Splenic Stroma, Pravin Periasamy, Sawang Petvises, Helen O'Neill Feb 2013

Development Of Two Distinct Dendritic-Like Apcs In The Context Of Splenic Stroma, Pravin Periasamy, Sawang Petvises, Helen O'Neill

Helen O'Neill

Murine splenic stroma has been found to provide an in vitro niche for hematopoiesis of dendritic-like APC. Two distinct cell types have been characterized. The novel "L-DC" subset has cross-presenting capacity, leading to activation of CD8+ T cells, but not activating CD4+ T cells, which is consistent with their CD11cloCD11bhiMHC-II- phenotype. For L-DC, an equivalent tissue-specific APC has been found only in spleen. A second population of CD11chiCD11bloMHC-II+ cells resembling conventional dendritic cells (cDC) can activate both CD4 and CD8 T cells. Production of L-DC but not cDC-like cells is now shown to be dependent on contact between the L-DC …


Investigation Into The Prevalence Of A Novel Dendritic-Like Cell Subset In Vivo, Kristin Griffiths, Jonathan Tan, Helen O'Neill Dec 2012

Investigation Into The Prevalence Of A Novel Dendritic-Like Cell Subset In Vivo, Kristin Griffiths, Jonathan Tan, Helen O'Neill

Helen O'Neill

A novel dendritic-like cell subset termed L-DC was recently identified in murine spleen based on marker expression of a homogeneous cell population derived from long-term culture of neonatal spleen. The function of L-DC is distinct from other splenic dendritic and myeloid cell subsets because of their high endocytic capacity and their ability to cross-present antigen to CD8+ T cells. This paper shows the subset to be unique to spleen and blood, with a similar, but possibly functionally distinct subset also present in bone marrow. The prevalence of the subset is low; ~6% of all dendritic and myeloid cells in the …


Investigation Into The Prevalence Of A Novel Dendritic-Like Cell Subset In Vivo, Kristin Griffiths, Jonathan Tan, Helen O'Neill Dec 2012

Investigation Into The Prevalence Of A Novel Dendritic-Like Cell Subset In Vivo, Kristin Griffiths, Jonathan Tan, Helen O'Neill

Jonathan Tan

A novel dendritic-like cell subset termed L-DC was recently identified in murine spleen based on marker expression of a homogeneous cell population derived from long-term culture of neonatal spleen. The function of L-DC is distinct from other splenic dendritic and myeloid cell subsets because of their high endocytic capacity and their ability to cross-present antigen to CD8+ T cells. This paper shows the subset to be unique to spleen and blood, with a similar, but possibly functionally distinct subset also present in bone marrow. The prevalence of the subset is low; ~6% of all dendritic and myeloid cells in the …