Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:Q3V6T2 (ape)
 2,133 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We have used a competitive repopulation assay in baboons to develop improved methods for hematopoietic stem cell transduction and have previously shown increased gene transfer into baboon marrow repopulating cells using a gibbon ape leukemia virus (GALV)-pseudotype retroviral vector (Kiem et al, Blood 90:4638, 1997). In this study using GALV-pseudotype vectors, we examined additional variables that have been reported to increase gene transfer into hematopoietic progenitor cells in culture for their ability to increase gene transfer into baboon hematopoietic repopulating cells. Baboon marrow was harvested after in vivo administration (priming) of stem cell factor (SCF) and granulocyte colony-stimulating factor (G-CSF). CD34-enriched marrow cells were divided into two equal fractions to directly compare transduction efficiencies under different gene transfer conditions. Transduction by either incubation with retroviral vectors on CH-296-coated flasks or by cocultivation on vector-producing cells was studied in five animals; in one animal, transduction on CH-296 was compared with transduction on bovine serum albumin (BSA)-coated flasks. The highest level of gene transfer was obtained after 24 hours of prestimulation followed by 48 hours of incubation on CH-296 in vector-containing medium in the presence of multiple hematopoietic growth factors (interleukin-6, stem cell factor, FLT-3 ligand, and megakaryocyte growth and development factor). Using these conditions, up to 20% of peripheral blood and marrow cells contained vector sequences for more than 20 weeks, as determined by both polymerase chain reaction and Southern blot analysis. Gene transfer rates were higher for cells transduced on CH-296 as compared with BSA or cocultivation. In one animal, we have used a vector expressing a cell surface protein (human placental alkaline phosphatase) and have detected 10% and 5% of peripheral blood cells expressing the transduced gene 2 and 4 weeks after transplantation as measured by flow cytometry. In conclusion, the conditions described here have resulted in gene transfer rates that will allow detection of transduced cells by flow cytometry to facilitate the evaluation of gene expression. The levels of gene transfer obtained with these conditions suggest the potential for therapeutic efficacy in diseases affecting the hematopoietic system.
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PMID:Improved gene transfer into baboon marrow repopulating cells using recombinant human fibronectin fragment CH-296 in combination with interleukin-6, stem cell factor, FLT-3 ligand, and megakaryocyte growth and development factor. 973 Oct 44

In the evolution of primates, the common marmoset belongs to the new world monkey family and is distinct from the great ape family (which includes humans). In this study, we predicted the amino acid sequences of 30 immunity-related genes from the common marmoset and compared them with those from human and mouse. The domain composition of each orthologous protein was analyzed by the SMART tool and was found to be the same among the three species. A BLAST search revealed that the common marmoset and human proteins were 86% identical on average, whereas the conservation between the common marmoset and mouse or between the human and mouse was only 60%. This indicates that the common marmoset and human proteins are closely related and are similarly divergent from the mouse. We divided the 30 proteins into two categories based on the degree of conservation between the common marmoset and mouse amino acid sequences. One group included 19 proteins and had a relatively high level of conservation (68% identical), whereas the other 11 proteins were less conserved (45% identical). This suggests that these immunity-related genes do not evolve at a uniform rate. Interestingly, however, ligand/receptor pairs such as interleukin-6 and interleukin-6 receptor appear to have evolved simultaneously.
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PMID:Comparison of 30 immunity-related genes from the common marmoset with orthologues from human and mouse. 1857 46