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2016 ; 7
(49
): 80391-80403
Nephropedia Template TP
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ANGPTL8 reverses established adriamycin cardiomyopathy by stimulating adult
cardiac progenitor cells
#MMPMID27823982
Chen S
; Chen J
; Meng XL
; Shen JS
; Huang J
; Huang P
; Pu Z
; McNeill NH
; Grayburn PA
Oncotarget
2016[Dec]; 7
(49
): 80391-80403
PMID27823982
show ga
Established adriamycin cardiomyopathy is a lethal disease. When congestive heart
failure develops, mortality is approximately 50% in a year. It has been known
that ANGPTLs has various functions in lipid metabolism, inflammation, cancer cell
invasion, hematopoietic stem activity and diabetes. We hypothesized that ANGPTL8
is capable of maintaining heart function by stimulating adult cardiac progenitor
cells to initiate myocardial regeneration. We employed UTMD to deliver piggybac
transposon plasmids with the human ANGPTL8 gene to the liver of rats with
adriamycin cardiomyopathy. After ANGPTL8 gene liver delivery, overexpression of
transgenic human ANGPTL8 was found in rat liver cells and blood. UTMD- ANGPTL8
gene therapy restored LV mass, fractional shortening index, and LV posterior wall
diameter to nearly normal. Our results also showed that ANGPTL8 reversed
established ADM cardiomyopathy. This was associated with activation of ISL-1
positive cardiac progenitor cells in the epicardium. A time-course experiment
shown that ISL-1 cardiac progenitor cells proliferated and formed a niche in the
epicardial layer and then migrated into sub-epicardium. The observed myocardial
regeneration accompanying reversal of adriamycin cardiomyopathy was associated
with upregulation of PirB expression on the cell membrane of cardiac muscle cells
or progenitor cells stimulated by ANGPTL8.