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2016 ; 6
(ä): 22971
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gab.com Text
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English Wikipedia
Vaginal Fibroblastic Cells from Women with Pelvic Organ Prolapse Produce Matrices
with Increased Stiffness and Collagen Content
#MMPMID26965792
Ruiz-Zapata AM
; Kerkhof MH
; Ghazanfari S
; Zandieh-Doulabi B
; Stoop R
; Smit TH
; Helder MN
Sci Rep
2016[Mar]; 6
(ä): 22971
PMID26965792
show ga
Pelvic organ prolapse (POP) is characterised by the weakening of the pelvic floor
support tissues, and often by subsequent prolapse of the bladder outside the
body, i.e. cystocele. The bladder is kept in place by the anterior vaginal wall
which consists of a dense extracellular matrix rich in collagen content that is
maintained and remodelled by fibroblastic cells, i.e. fibroblasts and
myofibroblasts. Since altered matrix production influences tissue quality, and
myofibroblasts are involved in normal and pathological soft tissue repair
processes, we evaluated matrix production of cells derived from pre- and
post-menopausal POP and non-POP control anterior vaginal wall tissues. Results
showed that cells from postmenopausal POP women deposited matrices with high
percentage of collagen fibres with less anisotropic orientation and increased
stiffness than those produced by controls. There was a transient increase in
myofibroblastic phenotype that was lost after the peak of tissue remodelling. In
conclusion, affected fibroblasts from postmenopausal prolapsed tissues produced
altered matrices in vitro compared to controls. Such aberrant altered matrix
production does not appear to be a consequence of abnormal phenotypical changes
towards the myofibroblastic lineage.