ABSTRACT
Cases in which the duplication of chromosome 8p (dup 8p) is observed are characterized by facial dysmorphism, agenesis/hypoplasia of the corpus callosum, heart defects and severe mental retardation. The frequency of dup 8p cases is higher compared to other chromosomes because of the Non-allelic homologous recombination (NAHR) between two segmental duplication regions (SDs) containing olfactory receptor gene clusters, REPD (repeat-distal) and REPP (repeat-proximal), located in chromosome 8p23.1. Here we generated a human iPSC line from a patient's amniotic fluid cells with a 18 Mb duplication in 8p23.3p22, which will serve as useful tools for studying dup 8p syndrome.
Subject(s)
Induced Pluripotent Stem Cells , Intellectual Disability , Amniotic Fluid , Chromosomes , Chromosomes, Human, Pair 8/genetics , Humans , In Situ Hybridization, Fluorescence , Intellectual Disability/geneticsABSTRACT
Apolipoprotein (apo) B is a large, amphipathic glycoprotein which plays an important role in human lipoprotein metabolism. The 43-kb APOB gene located on the short arm of human chromosome 2 and consisted of 29 exons, mutations in the APOB gene can give rise to either hypo- or hypercholesterolemia. We used peripheral blood mononuclear cells (PBMCs) from a volunteer carrying the APOB mutation (c.10579C>T, p.Arg3527Trp) located in exon 9 to establish induced pluripotent stem cells (iPSC), which will be an effective means to reveal the key biologically relevant metabolic mechanisms, a powerful tool for medicine selection and related research.
Subject(s)
Induced Pluripotent Stem Cells , Apolipoproteins B/genetics , Exons/genetics , Humans , Leukocytes, Mononuclear , Mutation/geneticsABSTRACT
Myoclonus Epilepsy and Ataxia due to Potassium channel mutation (MEAK) is a rare epilepsy caused by changes in the structure and function of potassium channels due to mutations in the potassium voltage-gated channel subfamily C member 1 (KCNC1) gene. MEAK is one of the progressive myoclonus epilepsy (PME), and there are few studies on MEAK pathogenesis and targeted drugs. Here, we used peripheral blood from MEAK patients with KCNC1 (c.959G > A) gene mutation to establish induced pluripotent stem cells (iPSC). The iPSC of KCNC1 mutation established by us is a powerful tool for related research.
ABSTRACT
Asparagine synthetase (ASNS) deficiency (ASNSD; MIM #615574) is a rare neurodevelopmental disorder caused by mutations in the ASNS gene. The ASNS gene maps to cytogenetic band 7q21.3 and is 35 kb long. ASNSD is characterised by congenital microcephaly, severely delayed psychomotor development, seizures, and hyperekplexic activity. Here, we reported a family with compound heterozygous mutations in ASNS (NM_001178076:c.551C>T; c. 944A>C) and established induced pluripotent stem cells (iPSCs) from blood samples. To date, limited functional data have been reported to explain the underlying pathophysiology of ASNSD; therefore, iPSCs from these patients may be powerful tools for studying disease mechanisms.
Subject(s)
Aspartate-Ammonia Ligase/deficiency , Aspartate-Ammonia Ligase/genetics , Cell Differentiation , Induced Pluripotent Stem Cells/pathology , Leukocytes, Mononuclear/pathology , Mutation , Neurodevelopmental Disorders/pathology , Adult , Animals , Cells, Cultured , Child , Female , Heterozygote , Humans , Induced Pluripotent Stem Cells/metabolism , Leukocytes, Mononuclear/metabolism , Male , Mice , Mice, Inbred NOD , Mice, SCID , Neurodevelopmental Disorders/enzymology , Neurodevelopmental Disorders/genetics , Teratoma/enzymology , Teratoma/genetics , Teratoma/pathologyABSTRACT
Haemoglobin (Hb) H-constant spring (CS) alpha thalassaemia (- -/-αCS) is the most common type of nondeletional Hb H disease in southern China. The CRISPR/Cas9-based gene correction of patient-specific induced pluripotent stem cells (iPSCs) and cell transplantation now represent a therapeutic solution for this genetic disease. We designed primers for the target sites using CRISPR/Cas9 to specifically edit the HBA2 gene with an Hb-CS mutation. After applying a correction-specific PCR assay to purify the corrected clones followed by sequencing to confirm the mutation correction, we verified that the purified clones retained full pluripotency and exhibited a normal karyotype. This strategy may be promising in the future, although it is far from representing a solution for the treatment of HbH-CS thalassemia now.
