Objective
SOMATOSTATIN (SS) ANALOGS ANTAGONIZE THE MITOGENIC EFFECT OF GROWTH FACTORS AND STIMULATE A MEMBRANE TYROSINE PHOSPHATASE (PTP), POSSIBLY IMPLICATED IN CELL PROLIFERATION. PTP1C HAS TWO SH2 DOMAINS THAT INTERACT WITH GROWTH FACTOR RECEPTORS, AND IS ABLE TO DEPHOSPHORYLATE THESE RECEPTORS. THE ACTIVATION OF THE SS RECEPTOR SSTR2 LEADS TO STIMULATION OF A PTP ACTIVITY AND INHIBITION OF CELL PROLIFERATION. THERE IS A SSTR2-PTP1C COMPLEX CAPABLE OF BINDING SS AND HAVING PTP ACTIVITY. OUR OBJECTIVE IS TO CHARACTERIZE THIS COMPLEX AND DEMONSTRATE ITS ROLE IN THE ANTIPROLIFERATIVE SIGNAL. WE WILL INVESTIGATE THE RECEPTOR SEQUENCES INVOLVED IN THE FORMATION OF THE COMPLEX USING MOLECULES MODIFIED IN THE INTRACELLULAR REGIONS INVOLVED IN THE SIGNAL TRANSDUCTION MECHANISM. THUS, CHIMERIC SSTR2SSTR3 MOLECULES (NOT COUPLED TO PTP1C) AND N- OR C-TERMINALLY TRUNCATED PTP1C MOLECULES WILL BE CONSTRUCTED. THIS WILL ALLOW US TO DEFINE THE IMPORTANT SEQUENCES IN THE FORMATION OF THE COMPLEX AND THE ROLE OF PTP1C IN THE ANTIPROLIFERATIVE SIGNAL.
Call for proposal
Data not availableFunding Scheme
Data not availableCoordinator
54006 Thessaloniki
Greece