This thesis proposes the hypothesis that there are proteins present in the peritoneal dialysis effluent that will inform on the rate of simple peritoneal sclerosis and EPS. These proteins are likely to be those involved in tissue remodeling or fibrosis. MMPs, TIMPs, and proteins identified by proteomics are examples on these potential proteins. To address this, each chapter sought to parts of this wider hypothesis. Chapter 3 proposed that changes in the MMP system in the peritoneum would underlie PS &/or the switch to EPS and may
244
have value as biomarkers or diagnostics in PDE while chapter 4 tested the hypothesis that MMP family members had a peritoneal production. Chapter 6 took this information and proposed that changes in the peritoneal cell population would change with time on PD and that this underpinned changes in ECM processing systems with time on PD. Finally, using data from parallel proteomic interrogation of PDE being performed in the same laboratory, chapter 5 attempted to validate some of these data by classical ELISA in the patient cohorts available. The above chapters are important to identify markers of peritoneal injury (biomarkers) that could be monitored to provide indication of the development of peritoneal injury including PS and EPS. Biomarkers that can be measured in the PDE samples can potentially be used to monitor changes occurring in the peritoneal ECM in response to time on treatment. Therefore, the overall aims of this thesis were to identify biomarkers or diagnostic tools for PS and EPS.
This thesis proposes the hypothesis that there are proteins present in the peritoneal dialysis effluent that will inform on the rate of simple peritoneal sclerosis and EPS. These proteins are likely to be those involved in tissue remodeling or fibrosis. MMPs, TIMPs, and proteins identified by proteomics are examples on these potential proteins. To address this, each
chapter
sought to parts of this wider hypothesis.
Chapter
3 proposed that
changes
in the MMP system in the peritoneum would underlie PS &/or the switch to EPS and may
244
have value as biomarkers or diagnostics in PDE while
chapter
4
tested
the hypothesis that MMP family members had a peritoneal production.
Chapter
6 took this information and proposed that
changes
in the peritoneal cell population would
change
with time on PD and that this underpinned
changes
in ECM processing systems with time on PD.
Finally
, using data from parallel proteomic interrogation of PDE
being performed
in the same laboratory,
chapter
5 attempted to validate
some
of these data by classical ELISA in the patient cohorts available. The above
chapters
are
important
to identify markers of peritoneal injury (biomarkers) that could
be monitored
to provide indication of the development of peritoneal injury including PS and EPS. Biomarkers that can
be measured
in the PDE samples can
potentially
be
used
to monitor
changes
occurring in the peritoneal ECM in response to time on treatment.
Therefore
, the
overall
aims of this thesis were to identify biomarkers or diagnostic tools for PS and EPS.