Stem cell research最新文献

PGK1 (phosphoglycerate kinase-1) is required for ATP production in the body. Mutation in the PGK1 gene causes a rare, inherited metabolic disorder causing deficiency of enzyme PGK1, leading to hemolytic anemia, neurological symptoms, and muscle weakness. We generated induced pluripotent stem cells (iPSCs) from a patient carrying a PGK1 variant by isolating fibroblasts from skin punch biopsy and reprogramming using CytoTune iPS 2.0 Sendai reprogramming kit. The resulting iPSCs had normal karyotype, expressed pluripotent markers, and differentiated into three germ layers in vitro. The iPSC line NIMHi016-A can be used to model neuromuscular disorders.

Long COVID, or post-acute sequelae of SARS-CoV-2 infection, leads to vascular dysfunction, which contributes to the chronic multi-organ damage often seen in affected patients. Long COVID, a global health concern is associated with increased thrombotic risk, also known as COVID-19-associated coagulopathy (CAC). Here, we derived an induced pluripotent stem cell (iPSC) line from peripheral blood mononuclear cells (PBMCs) of a long COVID patient. This iPSC line showed normal morphology, maintained pluripotency, had a stable karyotype, and demonstrated the ability to differentiate into the three germ layers (ectoderm, endoderm, and mesoderm). This line provides a valuable tool for modeling long COVID and exploring mechanisms underlying multi-organ dysfunction.

KDM5D is a gene implicated in spermatogenic failure and sex-related differences in colon cancer progression, though its role in spermatogenesis remains unclear. We successfully generated a KDM5D knockout human embryonic stem cells using CRISPR/Cas9 technology. This knockout cell line provides a valuable model for studying KDM5D's function in spermatogenesis and its influence on sex differences in various diseases.

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is an inherited cardiac disease characterised by adrenergic-induced arrhythmias. The leading causes of CPVT are pathogenic variants in cardiac ryanodine receptor 2 (RYR2) and rarely, in cardiac calsequestrin-2 (CASQ2) genes, which are major components of Ca²⁺ handling in cardiac myocytes. This resource builds upon an established induced pluripotent stem cell line generated from a family with autosomal dominant CPVT due to a heterozygous variant in CASQ2 c.539A > G, p.Lys180Arg (CIAUi003-A) (Ross et al., 2019). The current iPSC line was genetically modified using CRISPR/Cas9 to correct the pathogenic c.539A > G variant creating a CRISPR-corrected isogenic control line (CIAUi003-A-1).

Mucopolysaccharidosis Type Ⅱ, as Known as Hunter syndrome, is a rare X-liked genetic disease caused by mutations in iduronate-2-sulfatase (IDS) gene. We obtained peripheral blood mononuclear cells (PBMCs) from a patient with a severe type of Hunter syndrome carrying c.418 + 495_1006 + 1304 deletion in the IDS gene. We generated an induced pluripotent stem cell (iPSC) line (PNUSCRi005-A hiPSCs) from the PBMCs of the patient using non-integrative Sendai virus. The hiPSCs exhibited embryonic stem cell-like characteristics, showed differentiation properties into three germ layers, and had a normal karyotype.

A human induced pluripotent stem cell (iPSC) line was generated from patient with Kennedy Disease (KD), who carried the CAG repeat expansion mutation in AR gene. Peripheral blood mononuclear cells (PBMCs) were reprogrammed using non-integrating delivery of KFL4, OCT4, SOX2, BCL-XL and c-MYC. The iPSC line expresses pluripotency markers, displays a normal karyotype, and is capable of differentiate into three germ layers in vitro. This iPSC line represents a valuable cell model for studing KD in humans.

Pyruvate Dehydrogenase Kinase1 (PDK1) belongs to the family of kinases, regulates diverse metabolic processes. PDK1 is a susceptibility locus for heart failure via thinning of ventricle walls, and enlarged atria and ventricles. We successfully developed a PDK1 knockout (PDK1^-/^-) human embryonic stem cell (hESC) line using an episomal vector-based CRISPR/Cas9 system explore the role of PDK in human heart development. This PDK1-KO hESC line-maintained stem cell-like morphology, pluripotency, and normal karyotype and can differentiate into all three germ layers in vivo. This cell line will be a valuable tool for future research on the role of PDK1 in heart development.