Search: hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Medicinska och farmaceutiska grundvetenskaper) hsv:(Neurovetenskaper)
> (2000-2009) >
Fluorescent leukotr...
Fluorescent leukotriene B-4: potential applications
-
Sabirsh, A (author)
-
Wetterholm, A (author)
-
- Bristulf, Jesper (author)
- Lund University,Lunds universitet,LU Innovation,Sektionen Forskning, samverkan och innovation,Universitetsförvaltningen,Universitetets ledning och förvaltning,Research, Collaboration and Innovation,Central Administration,University Management and Central Administration
-
show more...
-
- Leffler, Hakon (author)
- Lund University,Lunds universitet,Avdelningen för mikrobiologi, immunologi och glykobiologi - MIG,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Microbiology, Immunology and Glycobiology - MIG,Department of Laboratory Medicine,Faculty of Medicine
-
- Haeggstrom, JZ (author)
- Karolinska Institutet
-
- Owman, Christer (author)
- Lund University,Lunds universitet,Drug Target Discovery,Forskargrupper vid Lunds universitet,Lund University Research Groups
-
show less...
-
(creator_code:org_t)
- 2005
- 2005
- English.
-
In: Journal of Lipid Research. - 1539-7262 .- 0022-2275. ; 46:6, s. 1339-1346
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
http://kipublication...
-
show less...
Abstract
Subject headings
Close
- Leukotriene B-4 (LTB4) is a potent lipid mediator of inflammation that acts primarily via a seven-transmembrane-spanning, G-protein-coupled receptor denoted BLT1. Here, we describe the synthesis and characterization of fluorescent analogs of LTB4 that are easy to produce, inexpensive, and without the disadvantages of a radioligand. Fluorescent LTB4 is useful for labeling LTB4 receptors for which no antibodies are available and for performing one-step fluorescence polarization assays conducive to high-throughput screening. We found that orange and green fluorescent LTB4 were full agonists that activated the LTB4 receptor BLT1 with EC50 values of 68 and 40 nM, respectively (4.5 nM for unmodified LTB4). Flow cytometric measurements and confocal imaging showed that fluorescent LTB4 colocalized with BLT1. Fluorescence polarization measurements showed that orange fluorescent LTB4 bound to BLT1 with a K-d of 66 nM and that this binding could be displaced by unlabeled LTB4 and other BLT1-specific ligands. Fluorescent LTB4 analogs were also able to displace tritiated LTB4. Orange fluorescent LTB4 binding to enhanced green fluorescent protein-tagged BLT1 could be observed using fluorescence resonance energy transfer. In addition to being a useful alternative to radiolabeled LTB4, the unique properties of fluorescently labeled LTB4 allow a variety of detection technologies to be used.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Microbiology in the medical area (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Immunologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Immunology in the medical area (hsv//eng)
Keyword
- G-protein coupled receptor
- pharmacology
- method
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database