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Articles 31 - 37 of 37
Full-Text Articles in Cell and Developmental Biology
Splenic Endothelial Cell Lines Support Development Of Dendritic Cells From Bone Marrow, Geneviève Despars, Helen O'Neill
Splenic Endothelial Cell Lines Support Development Of Dendritic Cells From Bone Marrow, Geneviève Despars, Helen O'Neill
Helen O'Neill
Although growth factors are commonly used to generate dendritic cells (DCs) in vitro, the role of the microenvironment necessary for DC development is still poorly understood. The mixed splenic stromal cell population STX3 defines an in vitro microenvironment supportive of DC development. Dissection of cellular components of the STX3 stroma should provide information about a niche for DC development. STX3 was therefore cloned by single-cell sorting, and a panel of 102 splenic stromal cell lines was established. Four representative splenic stromal cell lines that support hematopoiesis from bone marrow are described here in terms of stromal cell type and DC …
Cell Surface Expression Of A Peptide Encoded By The Unrearranged Tcr-Vβ8.2 Gene, Janice Abbey, Mark Hulett, Helen O'Neill
Cell Surface Expression Of A Peptide Encoded By The Unrearranged Tcr-Vβ8.2 Gene, Janice Abbey, Mark Hulett, Helen O'Neill
Helen O'Neill
Germline transcription of T-cell receptor (TCR) genes has been described in early lymphoid cells. The most common explanation for this phenomenon is that transcription of unrearranged Vβ genes directs gene usage during the rearrangement event. Germline transcription of the TCR-Vβ8.2 gene has been detected in a precursor T-cell line, C1-V13D, which shows no rearrangement at any of the TCR gene loci. This cell line also shows weak binding of specific anti-V 8.2 antibody to the cell surface, consistent with expression of a truncated TCR chain. RT-PCR has been used to confirm expression of spliced germline transcripts of TCR-Vβ8.2 in C1-V13D …
The Immunogenicity Of Dendritic Cell-Derived Exosomes, Ben Quah, Helen O'Neill
The Immunogenicity Of Dendritic Cell-Derived Exosomes, Ben Quah, Helen O'Neill
Helen O'Neill
Exosome production represents an alternate endocytic pathway for secretion. Multivesicular endosomes (MVE) fuse with the plasma membrane expelling internal vesicles or exosomes from cells. Exosome production has been recently described for immune cells including B cells, dendritic cells (DC), mast cells, macrophages and T cells. Exosomes derived from some DC populations stimulate T lymphocyte proliferation in vitro and have potent capacity to generate anti-tumour immune responses in vivo. These reported studies have involved in vitro grown mature DC expanded from precursors with cytokines. However, immature DC produce higher numbers of exosomes than mature DC and this is thought to be …
Food Based Approaches For A Healthy Nutrition In Africa, Mamoudou Hama Dicko
Food Based Approaches For A Healthy Nutrition In Africa, Mamoudou Hama Dicko
Pr. Mamoudou H. DICKO, PhD
The latest estimates of the FAO demonstrate the problems of the fight against hunger. These problems are manifested by the ever-increasing number of chronically undernourished people worldwide. Their numbers during the 1999-2001 period were estimated at about 840 million of which 798 million live in developing countries. Sub-Saharan Africa alone represented 198 million of those. In this part of Africa the prevalence of undernourishment ranges from 5-34%, causing growth retardation and insufficient weight gain among one third of the children under five years of age and resulting in a mortality of 5-15% among these children. Malnutrition resulting from undernourishment is …
Compartmental Specificity Of Cellular Membrane Fusion Encoded In Snare Proteins, James Mcnew, Frank Parlati, Ryorichi Fukuda, Robert Johnston, Keren Paz, Fabienne Paumet, Thomas Sollner, James Rothman
Compartmental Specificity Of Cellular Membrane Fusion Encoded In Snare Proteins, James Mcnew, Frank Parlati, Ryorichi Fukuda, Robert Johnston, Keren Paz, Fabienne Paumet, Thomas Sollner, James Rothman
Fabienne Paumet
No abstract provided.
Soluble Nsf Attachment Protein Receptors (Snares) In Rbl-2h3 Mast Cells: Functional Role Of Syntaxin4 In Exocytosis And Identification Of A Vamp8-Containing Secretory Compartment, Fabienne Paumet, Joelle Le Mao, Sophie Martin, Thierry Galli, Bernard David, Ulrich Blank, Michele Roa
Soluble Nsf Attachment Protein Receptors (Snares) In Rbl-2h3 Mast Cells: Functional Role Of Syntaxin4 In Exocytosis And Identification Of A Vamp8-Containing Secretory Compartment, Fabienne Paumet, Joelle Le Mao, Sophie Martin, Thierry Galli, Bernard David, Ulrich Blank, Michele Roa
Fabienne Paumet
No abstract provided.
Involvement Of The Ras-Like Gtpase Rab3d In Rbl-2h3 Mast Cell Exocytosis Following Stimulation Via High Affinity Ige Receptors (Fcεri), Michele Roa, Fabienne Paumet, Joelle Le Mao, Bernard David, Ulrich Blank
Involvement Of The Ras-Like Gtpase Rab3d In Rbl-2h3 Mast Cell Exocytosis Following Stimulation Via High Affinity Ige Receptors (Fcεri), Michele Roa, Fabienne Paumet, Joelle Le Mao, Bernard David, Ulrich Blank
Fabienne Paumet
No abstract provided.