Stem cell research最新文献

Autosomal dominant polycystic kidney disease (ADPKD), a single-gene-inherited kidney disease, is a common cause of end-stage kidney disease (ESKD). The PKD1 gene mutation is the most common cause of ADPKD, accounting for approximately 78% of cases. ADPKD is characterized by the scattered distribution of multiple cysts in the renal parenchyma, ultimately leading to ESKD. We collected peripheral blood mononuclear cells from a patient with ADPKD who carries a heterozygous PKD1 mutation and reprogrammed them into induced pluripotent stem cells (iPSCs). iPSC lines can provide a valuable resource for studying the pathogenesis of ADPKD and for drug screening purposes.

Abnormal trinucleotide CAG repeat expansions in exon 1 of the Androgen Receptor (AR) gene has been identified as the cause of Kennedy disease (KD). We generated and characterized a human induced pluripotent stem cell (iPSC) line from peripheral blood mononuclear cells (PBMC) of a patient with genetically confirmed KD. The pluripotency of these iPSCs was verified by the expression of several pluripotency markers at both RNA and protein levels, as well as their capability to differentiate into all three germ layers.

Here, we described the generation of human induced pluripotent stem cell lines (hiPSCs) from three sporadic Parkinson's disease (sPD) patients by reprogramming of their peripheral blood mononuclear cells (PBMC).

Mutations in the PRPF31 gene are a well-known cause of autosomal dominant retinitis pigmentosa (RP), the most prevalent genetic form of blindness in adults, affecting 1 in 4,000 individuals globally. In this study, peripheral blood mononuclear cells from a patient carrying a heterozygous mutation in PRPF31 were reprogrammed to generate the human iPSC line ESi132-A. This cell line was thoroughly characterized for self-renewal and pluripotency. These cells will be used to develop advanced 3D biomodels based on multi-ocular cell differentiation to assess the efficacy of novel treatments for RP including innovative drug and gene therapies.

A novel pathogenic variant in the MYH11 gene (c.4559+1G>A) leading to exon 32 skipping, is a rare cause of familial aortic aneurysms and dissections (fTAAD). The phenotype has proven highly variable with reduced penetrance. Here, we report human induced pluripotent stem cell (iPSC) lines, generated from peripheral blood mononuclear cells (PBMCs) of three variant carriers and two non-carrying family members. Each iPSC line exhibited typical iPSC morphology and expressed positive markers for pluripotency and tri-lineage differentiation. These cell lines offer a platform for in vitro investigation of the unknown fTAAD pathophysiology and testing of therapeutical agents for aneurysm growth attenuation.

BAG3 contributes to the maintenance of proteostasis through chaperone-assisted selective autophagy. This function is impaired by a single amino acid exchange (P209L) in the protein, which causes myofibrillar myopathy-6 (MFM6). This disease manifests as severe skeletal muscle weakness, neuropathy and restrictive cardiomyopathy. We generated an isogenic series of heterozygous and homozygous genome-edited human induced pluripotent stem cell (hiPSC) lines with the BAG3^P209L-mutation and its control. For quality control, we tested the pluripotency of these hiPSC lines and their ability to differentiate into the three germ layers. Generation of these cell lines enables the analysis of cellular pathomechanisms of BAG3^P209L-related MFM6.

Long QT syndrome type 2 (LQT2), caused by mutations in the KCNH2 gene, is an inherited ion channel disorder associated with sudden death in adolescents. In this study, we generated a patient-specific induced pluripotent stem cell (iPSC) line XXMUFAi001-A using non-integrative Sendai reprogramming technology from an individual carrying a heterozygous point mutation (c.2690 A>C) in KCNH2. XXMUFAi001-A cell line exhibited expression of pluripotency markers and demonstrated teratoma formation capability in vivo, as well as the potential to differentiate into all three germ layers. The establishment of XXMUFAi001-A is crucial for investigating the pathogenesis and drug screening of LQT2.

Polycystic ovary syndrome (PCOS) is a common endocrine disorder related to multifactors and genetic polymorphisms. Here, we derived an induced pluripotent stem cell (hiPSC) line NTUHi006-A from a phenotype A (full-blown) PCOS patients with clinical hyperandrogenism, chronic anovulation, and polycystic ovarian morphology on ultrasonography. NTUHi006-A showed stemness, pluripotency and stem cell-like morphology.

Fluorescent protein-based Genetically Encoded Voltage Indicators (GEVI) offer a remarkable system for high-throughput screening of membrane potential phenotypes. The GEVI MARINA is a derivative from ArcLight, which conversely to ArcLight increases its fluorescence intensity alongside depolarization. Here we created knock-in reporter human iPS cell lines carrying the MARINA reporter using SpCas9 programmable nuclease and characterize a heterozygous clone.

BAG3 is a central component of the chaperone-assisted selective autophagy complex and thus important for proteostasis. This function is affected by a point mutation (p.P209L; c.626C>T) in the BAG3 gene, leading to myofibrillar myopathy-6 (MFM6), restrictive cardiomyopathy and polyneuropathy, which manifests as severe skeletal muscle weakness and heart failure. The isogenic induced pluripotent stem cell (iPSC) control line was generated by correcting for c.626C>T in iPSCs from MFM6-patient. Quality control was achieved by testing for pluripotency and differentiation into the three germ layers. In conjunction with patient-specific MFM6 hiPSC, the isogenic hiPSC control line enable the correct analysis of MFM6.