Example sentences for: sb-

How can you use “sb-” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • Fast TGFβ responder genes, such as smad7 , whose maximum activation by TGFβ was reached after 60 min, was only slightly affected by SB-203580, while slow responders, such as pai-1, pthrp or upa , that showed peak activation after 180-240 min, were very sensitive to the repressive effect of SB-203580.

  • The strongest effect of SB-203580 was found on the TGFβ-dependent expression of pthrp and upa . In these cases, the inhibitor completely eliminated responsiveness to TGFβ.

  • We have previously demonstrated that TGFβ upregulates PTHrP and PAI-1 RNA levels in MDA-MB-231 cells [ 19 ] . TGFβ affected PTHrP expression primarily by increasing the level of the promoter P3-specific transcript [ 19 ] . Quantitative PCR analysis using primers allowing the detection of PTHrP P3 and PAI-1 transcripts indicated that incubation of MDA-MB-231 cells with SB-202190 and SB-203580 greatly inhibited TGFβ-induced increase in PTHrP and, to a lesser extent, PAI-1 mRNA levels (Fig.

  • Interestingly, treating cells with TGFβ for 60 min yielded a similar amount of Smad3 in the nucleus, irrespective of whether SB-203580 was present or not.

  • Here we show that, in the highly invasive breast cancer cell line MDA-MB-231, the SB-202190 and SB-203580 inhibitors negatively altered Smad3 nuclear entry upon TGFβ stimulation.


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