The presence of an internal tandem duplication (ITD) mutation in the FLT3 receptor leads to its constitutive activation. In comparison to FLT3-WT positive 32D cells, a distinctly higher activity of NF-kappaB coud be observed in FLT3-ITD positive 32D cells. The amount of the NF-kappaB subunits p50 and p65 as well as the inhibitory proteins IkappaBalpha and IkappaBbeta however was virtually unaffected. The preincubation of THP-1 with ozLDL led to a reversible inhibition of the LPS induced activation of NF-kappaB. In that context, it could be excluded that this inhibition is based on toxic effects. Moreover, time course experiments showed that NF-kappaB regained its activatability after 6 hours.
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The presence of an internal tandem duplication (ITD) mutation in the FLT3 receptor leads to its constitutive activation. In comparison to FLT3-WT positive 32D cells, a distinctly higher activity of NF-kappaB coud be observed in FLT3-ITD positive 32D cells. The amount of the NF-kappaB subunits p50 and p65 as well as the inhibitory proteins IkappaBalpha and IkappaBbeta however was virtually unaffected. The preincubation of THP-1 with ozLDL led to a reversible inhibition of the LPS induced activati...
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