Prevention of T cell activation is one of the goals of successful organ and tissue transplantation. Blockade of T cell co-stimulation, particularly of the CD28:B7 interaction, has been shown to prolong graft survival. Inducible Co-Stimulator (ICOS) is the third member of the B7 family and here we review the literature on ICOS, its receptor (B7RP-1), and blockade of this pathway in transplant models.
View Article and Find Full Text PDFBackground: Work-related stress among seafarers is well known but a suspected excess of work-related stress due to the COVID-19 so far has not been published. The aim of the study was to evaluate the well- -being of the seafarers during the outbreak of COVID-19 pandemic and their evaluation of the precautions taken by the shipping companies.
Materials And Methods: Seventy-two seafarers completed the General Health Questionnaire (GHQ12) with three extra questions on how the COVID-19 precautions were taken on board.
We have previously reported that ICOS-Ig expressed locally by a PIEC xenograft induces a perigraft cellular accumulation of CD4 CD25 Foxp3 T cells and specific xenograft prolongation. In the present study we isolated and purified CD4 CD25 T cells from ICOS-Ig secreting PIEC grafts to examine their phenotype and mechanism of xenograft survival using knockout and mutant mice. CD4 CD25 T cells isolated from xenografts secreting ICOS-Ig were analysed by flow cytometry and gene expression by real-time PCR.
View Article and Find Full Text PDFBackground: P21-activated kinase 1 (PAK1) stimulates growth and metastasis of colorectal cancer (CRC) through activation of multiple signalling pathways. Up-regulation of CRC stem cell markers by PAK1 also contributes to the resistance of CRC to 5-fluorouracil. The aim of this study was to investigate the effect of PAK1 depletion and inhibition on the immune system and on intestinal tumour formation in APC mice.
View Article and Find Full Text PDFTransfus Clin Biol
November 2012
The new training reference guide related to state registered degree has been applied since 31 July 2009. Training and valuation projects developed by nurse training institutes have been amended to comply with learning concept: understanding-action-transfer. Validation of grade 4.
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