INVESTIGADORES
FERNANDEZ maria del carmen
artículos
Título:
Bradykinin modulates focal adhesions and induces stress fiber remodeling
Autor/es:
MARÍA GABRIELA MARQUEZ; MARIA C. FERNÁNDEZ TOME; NICOLAS O. FAVALE; LUCILA G PESCIO; NORMA STERIN-SPEZIALE
Revista:
AMERICAN JOURNAL OF PHYSIOLOGY-RENAL PHYSIOLOGY - (Print)
Editorial:
APS
Referencias:
Año: 2008 vol. 294 p. 603 - 613
ISSN:
0363-6127
Resumen:
Ma´rquez MG, del Carmen Ferna´ndez-Tome M, Favale NO,
Pescio LG, Sterin-Speziale NB. Bradykinin modulates focal adhesions
and induces stress fiber remodeling in renal papillary collecting
duct cells. Am J Physiol Renal Physiol 294: F603F613, 2008. First
published December 26, 2007; doi:10.1152/ajprenal.00234.2007.
Focal adhesions (FAs) are specialized regions of cell attachment to the
extracellular matrix. Previous works have suggested that bradykinin
(BK) can modulate cell-matrix interaction. In the present study, we
used a physiological cellular model to evaluate the potential role of
BK in modulating FAs and stress fibers. We performed a quantitative
morphometric analysis of FAs in primary cultured rat renal papillary
collecting duct cells, which included size, axial ratio (shape), and
average length. After 1, 5, or 10 min of incubation with BK, cultured
cells were immunostained and analyzed by confocal microscopy. Although
the shape of FAs was not altered, BK induced a decrease in the
number of vinculin-stained FAs per cell, and a decrease in both their size
and their average length, but not in talin-containing FAs, thus suggesting
that BK could be inducing a restructuring of FAs. BK also induced a
remodeling of the actin filament assemblies rather than their dissipation.
Since we have previously demonstrated that BK stimulates activation of
PLC in rat renal papillae, we attempted to determine whether BK can
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
published December 26, 2007; doi:10.1152/ajprenal.00234.2007.
Focal adhesions (FAs) are specialized regions of cell attachment to the
extracellular matrix. Previous works have suggested that bradykinin
(BK) can modulate cell-matrix interaction. In the present study, we
used a physiological cellular model to evaluate the potential role of
BK in modulating FAs and stress fibers. We performed a quantitative
morphometric analysis of FAs in primary cultured rat renal papillary
collecting duct cells, which included size, axial ratio (shape), and
average length. After 1, 5, or 10 min of incubation with BK, cultured
cells were immunostained and analyzed by confocal microscopy. Although
the shape of FAs was not altered, BK induced a decrease in the
number of vinculin-stained FAs per cell, and a decrease in both their size
and their average length, but not in talin-containing FAs, thus suggesting
that BK could be inducing a restructuring of FAs. BK also induced a
remodeling of the actin filament assemblies rather than their dissipation.
Since we have previously demonstrated that BK stimulates activation of
PLC in rat renal papillae, we attempted to determine whether BK can
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
and induces stress fiber remodeling in renal papillary collecting
duct cells. Am J Physiol Renal Physiol 294: F603F613, 2008. First
published December 26, 2007; doi:10.1152/ajprenal.00234.2007.
Focal adhesions (FAs) are specialized regions of cell attachment to the
extracellular matrix. Previous works have suggested that bradykinin
(BK) can modulate cell-matrix interaction. In the present study, we
used a physiological cellular model to evaluate the potential role of
BK in modulating FAs and stress fibers. We performed a quantitative
morphometric analysis of FAs in primary cultured rat renal papillary
collecting duct cells, which included size, axial ratio (shape), and
average length. After 1, 5, or 10 min of incubation with BK, cultured
cells were immunostained and analyzed by confocal microscopy. Although
the shape of FAs was not altered, BK induced a decrease in the
number of vinculin-stained FAs per cell, and a decrease in both their size
and their average length, but not in talin-containing FAs, thus suggesting
that BK could be inducing a restructuring of FAs. BK also induced a
remodeling of the actin filament assemblies rather than their dissipation.
Since we have previously demonstrated that BK stimulates activation of
PLC in rat renal papillae, we attempted to determine whether BK can
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
published December 26, 2007; doi:10.1152/ajprenal.00234.2007.
Focal adhesions (FAs) are specialized regions of cell attachment to the
extracellular matrix. Previous works have suggested that bradykinin
(BK) can modulate cell-matrix interaction. In the present study, we
used a physiological cellular model to evaluate the potential role of
BK in modulating FAs and stress fibers. We performed a quantitative
morphometric analysis of FAs in primary cultured rat renal papillary
collecting duct cells, which included size, axial ratio (shape), and
average length. After 1, 5, or 10 min of incubation with BK, cultured
cells were immunostained and analyzed by confocal microscopy. Although
the shape of FAs was not altered, BK induced a decrease in the
number of vinculin-stained FAs per cell, and a decrease in both their size
and their average length, but not in talin-containing FAs, thus suggesting
that BK could be inducing a restructuring of FAs. BK also induced a
remodeling of the actin filament assemblies rather than their dissipation.
Since we have previously demonstrated that BK stimulates activation of
PLC in rat renal papillae, we attempted to determine whether BK can
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
Bradykinin modulates focal adhesions
and induces stress fiber remodeling in renal papillary collecting
duct cells. Am J Physiol Renal Physiol 294: F603F613, 2008. First
published December 26, 2007; doi:10.1152/ajprenal.00234.2007.
Focal adhesions (FAs) are specialized regions of cell attachment to the
extracellular matrix. Previous works have suggested that bradykinin
(BK) can modulate cell-matrix interaction. In the present study, we
used a physiological cellular model to evaluate the potential role of
BK in modulating FAs and stress fibers. We performed a quantitative
morphometric analysis of FAs in primary cultured rat renal papillary
collecting duct cells, which included size, axial ratio (shape), and
average length. After 1, 5, or 10 min of incubation with BK, cultured
cells were immunostained and analyzed by confocal microscopy. Although
the shape of FAs was not altered, BK induced a decrease in the
number of vinculin-stained FAs per cell, and a decrease in both their size
and their average length, but not in talin-containing FAs, thus suggesting
that BK could be inducing a restructuring of FAs. BK also induced a
remodeling of the actin filament assemblies rather than their dissipation.
Since we have previously demonstrated that BK stimulates activation of
PLC in rat renal papillae, we attempted to determine whether BK can
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
published December 26, 2007; doi:10.1152/ajprenal.00234.2007.
Focal adhesions (FAs) are specialized regions of cell attachment to the
extracellular matrix. Previous works have suggested that bradykinin
(BK) can modulate cell-matrix interaction. In the present study, we
used a physiological cellular model to evaluate the potential role of
BK in modulating FAs and stress fibers. We performed a quantitative
morphometric analysis of FAs in primary cultured rat renal papillary
collecting duct cells, which included size, axial ratio (shape), and
average length. After 1, 5, or 10 min of incubation with BK, cultured
cells were immunostained and analyzed by confocal microscopy. Although
the shape of FAs was not altered, BK induced a decrease in the
number of vinculin-stained FAs per cell, and a decrease in both their size
and their average length, but not in talin-containing FAs, thus suggesting
that BK could be inducing a restructuring of FAs. BK also induced a
remodeling of the actin filament assemblies rather than their dissipation.
Since we have previously demonstrated that BK stimulates activation of
PLC in rat renal papillae, we attempted to determine whether BK can
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
Am J Physiol Renal Physiol 294: F603F613, 2008. First
published December 26, 2007; doi:10.1152/ajprenal.00234.2007.
Focal adhesions (FAs) are specialized regions of cell attachment to the
extracellular matrix. Previous works have suggested that bradykinin
(BK) can modulate cell-matrix interaction. In the present study, we
used a physiological cellular model to evaluate the potential role of
BK in modulating FAs and stress fibers. We performed a quantitative
morphometric analysis of FAs in primary cultured rat renal papillary
collecting duct cells, which included size, axial ratio (shape), and
average length. After 1, 5, or 10 min of incubation with BK, cultured
cells were immunostained and analyzed by confocal microscopy. Although
the shape of FAs was not altered, BK induced a decrease in the
number of vinculin-stained FAs per cell, and a decrease in both their size
and their average length, but not in talin-containing FAs, thus suggesting
that BK could be inducing a restructuring of FAs. BK also induced a
remodeling of the actin filament assemblies rather than their dissipation.
Since we have previously demonstrated that BK stimulates activation of
PLC in rat renal papillae, we attempted to determine whether BK can
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
in rat renal papillae, we attempted to determine whether BK can
modulate FA restructuring by this mechanism, by pretreating cultured
cells with the PLC inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
inhibitor U73122. The present study, performed
under physiological conditions with cells that were not genetically manipulated,
provides new experimental evidence supporting the notion that
the intrarenal hormone BK modulates FAs and actin cytoskeleton organization
through a mechanism that involves the activation of PLC. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.
. We
propose this finding as a novel mechanism for BK modulation of tubular
collecting duct function.