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Träfflista för sökning "WFRF:(Fredriksson Simon) ;pers:(Östman Arne)"

Sökning: WFRF:(Fredriksson Simon) > Östman Arne

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1.
  • Fredriksson, Simon, et al. (författare)
  • Protein detection using proximity-dependent DNA ligation assays
  • 2002
  • Ingår i: Nature Biotechnology. - : Springer Science and Business Media LLC. - 1087-0156 .- 1546-1696. ; 20:5, s. 473-477
  • Tidskriftsartikel (refereegranskat)abstract
    • The advent of in vitro DNA amplification has enabled rapid acquisition of genomic information. We present here an analogous technique for protein detection, in which the coordinated and proximal binding of a target protein by two DNA aptamers promotes ligation of oligonucleotides linked to each aptamer affinity probe. The ligation of two such proximity probes gives rise to an amplifiable DNA sequence that reflects the identity and amount of the target protein. This proximity ligation assay detects zeptomole (40 x 10(-21) mol) amounts of the cytokine platelet-derived growth factor (PDGF) without washes or separations, and the mechanism can be generalized to other forms of protein analysis.
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2.
  • Lindblom, Per, 1974, et al. (författare)
  • Endothelial PDGF-B retention is required for proper investment of pericytes in the microvessel wall.
  • 2003
  • Ingår i: Genes & development. - : Cold Spring Harbor Laboratory. - 0890-9369 .- 1549-5477. ; 17:15, s. 1835-40
  • Tidskriftsartikel (refereegranskat)abstract
    • Several platelet-derived growth factor (PDGF) and vascular endothelial growth factor (VEGF) family members display C-terminal protein motifs that confer retention of the secreted factors within the pericellular space. To address the role of PDGF-B retention in vivo, we deleted the retention motif by gene targeting in mice. This resulted in defective investment of pericytes in the microvessel wall and delayed formation of the renal glomerulus mesangium. Long-term effects of lack of PDGF-B retention included severe retinal deterioration, glomerulosclerosis, and proteinuria. We conclude that retention of PDGF-B in microvessels is essential for proper recruitment and organization of pericytes and for renal and retinal function in adult mice.
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