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2015 ; 2015
(ä): 678347
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Transgenic Strategies to Study Podocyte Loss and Regeneration
#MMPMID26089920
Lombardi D
; Lasagni L
Stem Cells Int
2015[]; 2015
(ä): 678347
PMID26089920
show ga
Podocyte death and regeneration are major topics in kidney research but remain
controversial. Data obtained in humans demonstrate the existence of cells sited
along Bowman's capsule that behave as podocyte progenitors in vitro and in in
vivo mouse models of podocyte injury xenotrasplanted with this human-derived
population. However, this podocyte reservoir still remains elusive in murine
models, where it could be more easily studied. Transgenic models can be a
powerful tool to identify this population and to better understand its dynamics
and hierarchies in both physiological and pathological conditions. Indeed,
exploiting transgenic approaches allows detecting, at the single cell level,
movements, cell death, and replacement. Moreover, through lineage tracing it is
now possible to identify specific population increase and to point out clonal
expansions during or after the regenerative processes. However, applying
transgenic strategies to study glomerular regeneration requires the search of
markers to unequivocally identify this progenitor population. Achieving this aim
would lead to a deep comprehension of the biological processes that underlie
glomerular regeneration and clarify how different cell pools interface during
this phase. Here we discuss strategies that have been used and new approaches in
transgenic models finalized to study podocyte loss and subsequent replacement.