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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 Mediators+Inflamm
2017 ; 2017
(ä): 9524594
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gab.com Text
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English Wikipedia
Middermal Elastolysis: Dermal Fibroblasts Cooperate with Inflammatory Cells to
the Elastolytic Disorder
#MMPMID29097850
De Cunto G
; Lamberti A
; de Santi MM
; Miracco C
; Fimiani M
; Lungarella G
; Cavarra E
Mediators Inflamm
2017[]; 2017
(ä): 9524594
PMID29097850
show ga
Little is known about the cause and pathophysiology of middermal elastolysis
(MDE). In this condition, variable inflammatory infiltrate may be present or not
together with loss of elastic fibres in the middermis that spares both papillary
and lower reticular dermis. MDE may be a consequence of abnormal extracellular
matrix degradation related to an imbalance between elastolytic enzymes released
from inflammatory and resident cells and their naturally occurring inhibitors.
However, the cause of this imbalance is still an object of investigation. In
order to shed light on the role of fibroblasts in MDE, we used fibroblast
cultures from MDE and control subjects to evaluate matrix metalloproteinases
(MMPs) and their major inhibitor TIMP-1, which in combination with neutrophil or
macrophage proteases released in inflamed areas may influence the elastolytic
burden. We demonstrate that fibroblasts derived from MDE produce in vitro low
levels of TIMP-1, the major inhibitor of MMPs. Elevated levels of MMP-2, MMP-14,
and TIMP-2 capable to activate in a cooperative manner pro-MMP-2 are present in
MDE tissue samples. Additionally, significant reaction for MMP-1 is present in
the same MDE areas. These data all together suggest that ECM changes in MDE are
due to cooperation of different cell populations (i.e., inflammatory cells and
fibroblasts).
|Cells, Cultured
[MESH]
|Female
[MESH]
|Fibroblasts/immunology/*metabolism
[MESH]
|Humans
[MESH]
|Immunohistochemistry
[MESH]
|Matrix Metalloproteinase 2/metabolism
[MESH]
|Matrix Metalloproteinases/metabolism
[MESH]
|Microscopy
[MESH]
|Middle Aged
[MESH]
|Skin Diseases/immunology/*metabolism
[MESH]
|Skin/immunology/metabolism/pathology
[MESH]
|Tissue Inhibitor of Metalloproteinase-1/metabolism
[MESH]