Abstract | OBJECTIVE: METHODS: 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. RESULTS: 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. CONCLUSION:
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.
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Authors | Gai Xue, Jianli Li, Jianfang Liu, Honghai Wu, Yanning Hou |
Journal | Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology
(Zhonghua Gan Zang Bing Za Zhi)
Vol. 22
Issue 12
Pg. 910-4
(Dec 2014)
ISSN: 1007-3418 [Print] China |
PMID | 25654284
(Publication Type: Journal Article)
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Chemical References |
- Fluorescent Dyes
- Organic Chemicals
- PKH 26
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Topics |
- Animals
- Cell Proliferation
- Fluorescent Dyes
- Humans
- Liver Cirrhosis
- Mesenchymal Stem Cells
- Organic Chemicals
- Rats
- Umbilical Cord
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