In vivo tracking of PKH26-labeled human umbilical cord mesenchymal stem cells after transplantation into rats with liver cirrhosis / 中华肝脏病杂志
Chinese Journal of Hepatology
;
(12): 910-914, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-337066
ABSTRACT
<p><b>OBJECTIVE</b>To observe the in vivo migration of human umbilical cord mesenchymal stem cells (hUCMSCs) labeled with the PKH26 red fluorescent dye after transplantation into rats with liver cirrhosis.</p><p><b>METHODS</b>Frozen hUCMSCs were resuscitated and labeled with PKH26. Labeling efficiency and fluorescent maintenance time of the PKH26-1abeled cells were measured. Morphology of the labeled and unlabeled (control) cells was observed by microscopy. The cell growth curve was determined using the MTT method. The PKH26-1abeled hUCMSCs were transplanted via tail vein injection into healthy (control) rats and rats with liver cirrhosis. Migration of the PKH26-1abeled hUCMSCs observed 48 h later in frozen liver sections under a fluorescence microscope.</p><p><b>RESULTS</b>The labeling ratio of PKH26 to hUCMSCs was 100%. Growth of the labeled cells was good. The cell morphology was not significantly different between the labeled and unlabeled cells; all cells were long and spindle-like. Cell proliferation was not impacted significantly by labeling.Fluorescence was maintained for at least 20 days, as detected by in vitro analysis. After transplantation into the rats, the PKH26-1abeled hUCMSCs were mainly distributed in the area surrounding the portal vein, the blood vessels, and the false lobule of the cirrhotic liver; a small amount ofhUCMSCs were present in the spleen and lung.</p><p><b>CONCLUSION</b>PKH26 is an ideal fluorescent dye to label hUCMSCs. The PKH26 labeling technique can be used to study the migration of hUCMSCs in cirrhotic liver.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Organic Chemicals
/
Umbilical Cord
/
Cell Proliferation
/
Mesenchymal Stem Cells
/
Fluorescent Dyes
/
Liver Cirrhosis
Limits:
Animals
/
Humans
Language:
Chinese
Journal:
Chinese Journal of Hepatology
Year:
2014
Type:
Article
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