ltb4 การใช้

• LTB4 promotes skin inflammation by acting on peroxisome proliferator-activated receptor alpha ( PPAR? ).
• Among these 7 ligand, in contrast, BLT1 binds and is activated by only LTB4 and 20-hydroxy-LTB4.
• Among these 7 ligand, in contrast, BLT1 binds and is activated by only LTB4 and 20-hydroxy-LTB4.
• Additionally, squalene oxidation leads to increased activity of the 5-lipoxygenase enzyme responsible for conversion of arachidonic acid to leukotriene B4 ( LTB4 ).
• Opposition between the pro-inflammatory LTB4 / BLT1 and anti-inflammatory actions of the 12-HHT / BLT2 axes occurs in another setting.
• ALOX5 and its LTB4 metabolite as well as this metabolite's BLT1 and BLT2 receptors have also been shown to promote the growth of various types of human cancer cell lines in culture.
• Recent studies indicate that the role ( s ) of the 12-HHT / BLT2 receptor axis in human physiology and pathology may be very different than those of the LTB4 / BLT1 axis.
• To date, however, neither LTB4 synthesis inhibitors ( i . e . blockers of ALOX5 or LTA4 hydrolase ) nor inhibitors of LTB4 receptors ( BLT1 and BLT2 ) have turned out to be effective anti-inflammatory drugs.
• To date, however, neither LTB4 synthesis inhibitors ( i . e . blockers of ALOX5 or LTA4 hydrolase ) nor inhibitors of LTB4 receptors ( BLT1 and BLT2 ) have turned out to be effective anti-inflammatory drugs.
• Several years after their identification of a Leukotriene B4 ( LTB4 ) receptor termed BLT1 or BLTR1 and encoded by the LTB4R1 gene, Shimizu and colleagues identified a second LTB4 receptor, BLT2 or BLTR2, encoded by the LTB4R2 gene.
• Several years after their identification of a Leukotriene B4 ( LTB4 ) receptor termed BLT1 or BLTR1 and encoded by the LTB4R1 gene, Shimizu and colleagues identified a second LTB4 receptor, BLT2 or BLTR2, encoded by the LTB4R2 gene.
• HRAS stimulates the expression of 5-lipoxygenase, 5-lipoxygenase-activating protein, LTB4, and BLT2 receptors Rat2 and a rat fibroblast cell lines thereby increasing the tumor-forming ability the latter cell line in athymic mice.
• This byproduct differs from 5-oxo-ETE not only in the position and geometry of its double bounds but also in its activity : it stimulates human neutrophils apparently by acting on one or more LTB4 receptors rather than OXER1.
• Unlike LTB4 and its BLT1 receptor, which are implicated in contributing to allergen-based airway disease in mice and humans, 12-HHT and its BLT2 receptor appear to suppress this disease in mice and may do so in humans.
• Discovered several years after the leukotriene B4 receptor 1 ( BLT1 ), BLT2 receptor binds leukotriene B4 ( LTB4 ) with far lower affinity than the BLT1 receptor does and therefore has been termed the "'low affinity LTB4 receptor " '.
• Discovered several years after the leukotriene B4 receptor 1 ( BLT1 ), BLT2 receptor binds leukotriene B4 ( LTB4 ) with far lower affinity than the BLT1 receptor does and therefore has been termed the "'low affinity LTB4 receptor " '.
• LTB4, 5-HETE, and 5-oxoETE may contribute to the innate immune response as leukocyte chemotactic factors, i . e . they recruit and further activate circulating blood neutrophils and monccytes to sites of microbial invasion, tissue injury, and foreign bodies.
• The expression of 5-lipoxygenase, 5-lipoxygenase-activating protein, 12-lipoxygenase ( enzymes synthesizing LTB4 and 12 ( S )-HETE, respectively ) as wells as LTB4 and 12 ( S )-HETE were substantially elevated in these cells.
• The expression of 5-lipoxygenase, 5-lipoxygenase-activating protein, 12-lipoxygenase ( enzymes synthesizing LTB4 and 12 ( S )-HETE, respectively ) as wells as LTB4 and 12 ( S )-HETE were substantially elevated in these cells.
• LTB4 and 12 ( S )-HETE stimulate the invasivenes in an in vitro Matrigel invasion assay of highly malignant human 253 J-BV unirnary bladder cancer cell; their activity in this assay is completely inhibited by an pharmacological inhibition or siRNA knockdown of BLT2 receptors.