| Popis: |
IRS-2 is the inhibitor of serine proteases from the Ixodes ricinus tick. My task in this thesis was to find out the effect of the IRS-2 on dendritic cells activated by TLR4 ligand or by Borrelia afzelii. This effect was studied on several levels. I focused on the cytokine production, the expression of costimulatory molecules and cell signaling pathways. The results show that the IRS-2 may inhibit the expression of costimulatory molecules CD-80 a CD-86 on the cell surface, but this finding needs to be confirmed again. The production of cytokines was not affected by the IRS-2. The effect of the IRS-2 on the activity of p38, Erk1/2 nor NF-?B in LPS stimulated cells vas not observed. The fosforylation of STAT 3 in cells activated by the B. afzelii was lowered by the IRS-2. |
