Article ; Online: Cohort Generation and Characterization of Patient-Specific Familial Hypercholesterolemia Induced Pluripotent Stem Cells.
2021 Volume 30, Issue 12, Page(s) 632–640
Abstract: Homozygous familial hypercholesterolemia (hoFH) is a rare disorder caused primarily by pathological mutations in the low-density lipoprotein receptor (LDLR), which disrupts LDL-cholesterol (LDL-C) metabolism homeostasis. hoFH patients are at extremely ... ...
Abstract | Homozygous familial hypercholesterolemia (hoFH) is a rare disorder caused primarily by pathological mutations in the low-density lipoprotein receptor (LDLR), which disrupts LDL-cholesterol (LDL-C) metabolism homeostasis. hoFH patients are at extremely high risk for cardiovascular disease and are resistant to standard therapies. LDLR knockout animals and in vitro cell models overexpressing different mutations have proved useful, but may not fully recapitulate human LDLR mutation biology. We and others have generated induced pluripotent stem cells (iPSC) from hoFH patient's fibroblasts and T cells and demonstrated their ability to recapitulate hoFH biology. In this study, we present the generation and characterization of a cohort of seven hoFH-iPSC lines derived from peripheral blood mononuclear cells (PBMC) collected from four homozygous and three compound heterozygous patients. The hoFH-iPSC cohort demonstrated a wide range of LDLR expression and LDL-C internalization in response to rosuvastatin that correlated with the predicted pathogenicity of the mutation. We were able to confirm that hoFH-iPSC cohort were pluripotent by differentiation toward all three germ layers and specifically to hepatocyte-like cells (HLC), the cell with primary LDL-C metabolic regulatory control, by expression of hepatocyte markers. hoFH patient PBMC-derived iPSC recapitulate the LDLR dysfunction of their specific mutation. They were capable of differentiating to HLC and could be useful for early developmental studies, pharmacology/toxicology, and potentially autologous cell therapy. |
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MeSH term(s) | Cholesterol, LDL/genetics ; Cholesterol, LDL/metabolism ; Homozygote ; Humans ; Hyperlipoproteinemia Type II/genetics ; Induced Pluripotent Stem Cells/metabolism ; Leukocytes, Mononuclear/metabolism ; Mutation/genetics ; Receptors, LDL/genetics ; Receptors, LDL/metabolism |
Chemical Substances | Cholesterol, LDL ; Receptors, LDL |
Language | English |
Publishing date | 2021-05-21 |
Publishing country | United States |
Document type | Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2142214-X |
ISSN | 1557-8534 ; 1547-3287 |
ISSN (online) | 1557-8534 |
ISSN | 1547-3287 |
DOI | 10.1089/scd.2021.0004 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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