Example sentences for: pma

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

  • In other words, lysosomes that accumulate more reduced dye will produce stronger fluorescence after PMA stimulation.

  • Interestingly, the effect of PMA did reach significance in cultures supplemented with 172 mM ethanol (F 3;36 = 3.0, P = 0.043; groups 09b→12b, 15b→18b, 21b→24b).

  • It has been previously shown that potentiating effect of phorbol esters on IFNg-dependent MHCII induction in THP-1 monocytic cell line was associated with the increase in synthesis of IFNg receptors [ 19 ] . For that reason, we questioned whether PMA could produce similar changes in LS1034 colon carcinoma cells.

  • PMA, a phorbol ester, activates PKC and has previously been shown to activate SL-1 [ 40 ] . It appears that mesothelin is activated by Wnt-1, which can be mimicked by LiCl, and that SL-1 is activated by Wnt-5a in a beta-catenin-independent manner, which can be mimicked by activating PKC.

  • It is known that during clonal selection in the thymus, immature CD4, CD8 double positive cells develop into single positive CD4 or CD8 cells according to the relative affinity of their TCR to class II or class I molecules respectively [ 5 6 ] . These immature T-cells are selected in the thymic epithelium on the basis of their TCR interaction with either class I or class II MHC molecules [ 7 8 ] , thus generating two mutually exclusive subpopulations that are characterized by the expression of either CD4 or CD8 glycoproteins [ 9 ] . Earlier studies in the murine system have demonstrated that PMA and cAMP can modulate the expression CD4 and CD8 on developing thymocytes [ 10 11 12 13 ] . In keeping with these findings, ex vivo experiments with human thymocytes previously reported by our group, revealed that while phorbol esters can coordinately regulate the transcription of α and β TCR during intrathymic T cell differentiation [ 14 ] , cAMP selectively affected the transcription of the α and δ-TCR [ 15 16 ] . Together the murine data and our own findings support the hypothesis that in humans, TCR expression and CD4, CD8 commitment and selection may be regulated by the same signal-transduction pathways.


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