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CATHERINE
SWEENEY, B.Sc.
Postgraduate
Research Student
- 2000-date:
Postgraduate Research Student, School of Biotechnology, Dublin
City University.
- 2000:
Research Assistant, Trinity Biotech, Bray, Co. Wicklow.
- 1995-1999:
B.Sc. in Pharmacology, Faculty of Science, University College
Dublin.
- 1998:
Research Assistant, Proctor and Gamble, Frankfurt, Germany.
Ongoing
Research
- Role
of Notch signaling in pressure-induced vascular smooth muscle cell apoptosis
The
Notch signaling system is a highly conserved method of cell to cell
communication involved in cell fate decisions. Changes in intra-vascular
forces (pressure and flow) that occur in specific disease states,
such as hypertension, are associated with vascular remodeling. It
has previously been shown that pulse pressure induces proliferation
of vascular smooth muscle cells in vitro. As cell number is
the net result of cellular proliferation and cell death, it follows
that pulse pressure may also effect vascular smooth muscle cell apoptosis.
The Notch pathway has been identified as a 'general arbiter' of cell
fate decisions in many cell types. Therefore, using a novel perfused
transcapillary co-culture system for culturing vascular cells under
hemodynamic conditions, we aim to (i) examine the effect of changes
in intra-vascular forces on vascular smooth muscle cell apoptosis
and (ii) determine the effect of Notch signaling mechanism(s) in mediating
mechanical force-induced apoptosis in vascular smooth muscle cells.
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