Abstract:
:The failure of regeneration of damaged liver in various end-stage liver diseases results in high morbidity and mortality. In this context, we have demonstrated the differentiation ability of human hematopoietic stem cells (HSCs) into hepatocytes. In this study, HSCs were isolated from a donor and cultured which exhibited the presence of CD34 and CD133 and absence of CD90 and CD73 markers. These CD34+ HSCs were induced for 21 days in hepatocyte differentiation medium (HDM). The obtained cells were characterized by immunocytochemical, immunofluorescence, western blot, qRT-PCR and flow cytometry analysis. Further, functional assays were done to accentuate the differentiated cells are hepatocytes. In HDM at day 6 differentiated cells showed the expression of definitive endodermal (DE) markers, SOX17, GATA4 and FoxA2 indicating the beginning of differentiation process. At day 21 the flow cytometry analysis showed 84.2 % positive to ALB-PE, 75.4 % positive to HNF4α-PE, and 77.3% positive to AFP-PE. Further, the qRT-PCR and western blot analysis presented prominent expression of hepatocyte-specific genes AAT, ALB, AFP, CK18, CK19, HNF4α, TFR2, and Hepcidin confirms the generation of hepatocytes in HDM. The ability of albumin secretion, urea production, glycogen storage, uptake of LDL, high ALDH enzyme activity describes the functionality of differentiated hepatocytes. Distinct expression of UGT1A1, CYP2B6, CYP2C9, CYP3A4, and CYP7A1 genes explains the ability to clear toxins and bilirubin as observed in normal hepatocytes. All these results indicate HSCs were differentiated into hepatocytes thus, autologous transplantation of HSCs could be a better option in the regeneration of the damaged liver.
journal_name
Tissue Celljournal_title
Tissue & cellauthors
Kumar PS,Chandrasekhar C,Srikanth L,Sarma PVGKdoi
10.1016/j.tice.2019.101312subject
Has Abstractpub_date
2020-02-01 00:00:00pages
101312eissn
0040-8166issn
1532-3072pii
S0040-8166(19)30294-0journal_volume
62pub_type
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