Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25883887
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Springerplus
2015 ; 4
(ä): 161
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Prolonged exposure to neutrophil extracellular traps can induce mitochondrial
damage in macrophages and dendritic cells
#MMPMID25883887
Donis-Maturano L
; Sánchez-Torres LE
; Cerbulo-Vázquez A
; Chacón-Salinas R
; García-Romo GS
; Orozco-Uribe MC
; Yam-Puc JC
; González-Jiménez MA
; Paredes-Vivas YL
; Calderón-Amador J
; Estrada-Parra S
; Estrada-García I
; Flores-Romo L
Springerplus
2015[]; 4
(ä): 161
PMID25883887
show ga
Neutrophils are one the earliest, crucial innate defenses against innumerable
pathogens. Their main microbicidal activities include phagocytosis and
degranulation, with many pharmacologically active molecules contributing to
inflammation. Recently, a novel antimicrobial mechanism was discovered; the
Neutrophil Extracelullar Traps (NETs) formed by extrusion of DNA and associated
molecules (histones, elastase, antimicrobial peptides, among others) which trap
and kill microorganisms. Since NETs were recently described, research has focused
on their induction and microbicidal properties, and recently on disease
involvement. However, the functional consequences of NETs interacting with other
immune cells, either resident or recruited during early inflammation, have not
been assessed. We therefore investigated the consequences of exposing two major
APCs, macrophages (Mfs) and conventional Dendritic Cells (cDCs) to NETs. Our data
revealed that at early times (30 min), both Antigen Presenting Cells (APCs)
showed induction of important costimulatory molecules (CD80, CD86). Unexpectedly,
however, at later times (6 and 24 hours) NETs apparently triggered a cell death
process in these APCs by a caspase- and Apoptosis induced factor (AIF)-dependent
pathway, suggesting mitochondrial damage. By rhodamine-123 labelling we found
that in both APCs, relatively prolonged exposure to NETs or their components
importantly decreased the mitochondrial membrane potential. Ultrastructural
analysis confirmed mitochondrial alterations in both APCs. Our results would
suggest that early in inflammation, NETs can activate the two main APCs (Mfs and
cDCs), but as the process continues, NETs can then initiate apoptosis of these
cells through mitochondrial harm. Conceivable, this "late" induction of cell
death in these two APCs might start limiting an ongoing inflammatory process to
control it.