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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2017 ; 12
(9
): e0183827
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gab.com Text
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English Wikipedia
Reduced proliferation of endothelial colony-forming cells in unprovoked venous
thromboembolic disease as a consequence of endothelial dysfunction
#MMPMID28910333
Hernandez-Lopez R
; Chavez-Gonzalez A
; Torres-Barrera P
; Moreno-Lorenzana D
; Lopez-DiazGuerrero N
; Santiago-German D
; Isordia-Salas I
; Smadja D
; C Yoder M
; Majluf-Cruz A
; Alvarado-Moreno JA
PLoS One
2017[]; 12
(9
): e0183827
PMID28910333
show ga
BACKGROUND: Venous thromboembolic disease (VTD) is a public health problem. We
recently reported that endothelial colony-forming cells (ECFCs) derived from
endothelial cells (EC) (ECFC-ECs) from patients with VTD have a dysfunctional
state. For this study, we proposed that a dysfunctional status of these cells
generates a reduction of its proliferative ability, which is also associated with
senescence and reactive oxygen species (ROS). METHODS AND RESULTS: Human
mononuclear cells (MNCs) were obtained from peripheral blood from 40 healthy
human volunteers (controls) and 50 patients with VTD matched by age (20-50 years)
and sex to obtain ECFCs. We assayed their proliferative ability with plasma of
patients and controls and supernatants of cultures from ECFC-ECs,
senescence-associated ?-galactosidase (SA-?-gal), ROS, and expression of
ephrin-B2/Eph-B4 receptor. Compared with cells from controls, cells from VTD
patients showed an 8-fold increase of ECFCs that emerged 1 week earlier, reduced
proliferation at long term (39%) and, in passages 4 and 10, a highly senescent
rate (30±1.05% vs. 91.3±15.07%, respectively) with an increase of ROS and
impaired expression of ephrin-B2/Eph-4 genes. Proliferation potential of cells
from VTD patients was reduced in endothelial medium [1.4±0.22 doubling population
(DP)], control plasma (1.18±0.31 DP), or plasma from VTD patients (1.65±0.27 DP).
CONCLUSIONS: As compared with controls, ECFC-ECs from individuals with VTD have
higher oxidative stress, proliferation stress, cellular senescence, and low
proliferative potential. These findings suggest that patients with a history of
VTD are ECFC-ECs dysfunctional that could be associated to permanent risk for new
thrombotic events.