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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 Regen+Med
2017 ; 12
(3
): 249-261
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The role of myeloid cell-derived PDGF-B in neotissue formation in a
tissue-engineered vascular graft
#MMPMID28524773
Onwuka E
; Best C
; Sawyer A
; Yi T
; Heuer E
; Sams M
; Wiet M
; Zheng H
; Kyriakides T
; Breuer C
Regen Med
2017[Apr]; 12
(3
): 249-261
PMID28524773
show ga
AIM: Inflammatory myeloid lineage cells mediate neotissue formation in
tissue-engineered vascular grafts, but the molecular mechanism is not completely
understood. We examined the role of vasculogenic PDGF-B in tissue-engineered
vascular graft neotissue development. MATERIALS & METHODS: Myeloid cell-specific
PDGF-B knockout mice (PDGF-KO) were generated using bone marrow transplantation,
and scaffolds were implanted as inferior vena cava interposition grafts in either
PDGF-KO or wild-type mice. RESULTS: After 2 weeks, grafts from PDGF-KO mice had
more remaining scaffold polymer and less intimal neotissue development. Increased
macrophage apoptosis, decreased smooth muscle cell proliferation and decreased
collagen content was also observed. CONCLUSION: Myeloid cell-derived PDGF
contributes to vascular neotissue formation by regulating macrophage apoptosis,
smooth muscle cell proliferation and extracellular matrix deposition.