Key result
CRISPR-Cas9 generates a biallelic NRAP-knockout stem cell line to study cardiac function and disease progression.
Why the study?
NRAP loss-of-function mutations are linked to human cardiac diseases, but the regulatory functions of NRAP in myofibril assembly and mechanotransduction remain unclear.
Answers are grounded in this paper and cite their sources.
The generation of a biallelic NRAP-knockout hiPSC line provides a valuable preclinical tool to study the role of NRAP in cardiac function and cardiomyopathy progression.
Cardiomyopathies, a leading cause of mortality, are associated with dysfunctional intercalated discs, which connect neighbouring cardiomyocytes and ensure proper contractility. In human cardiac diseases, loss-of-function mutations of the intercalated disc-associated protein Nebulin-Related Anchoring Protein (NRAP) have been reported. NRAP plays a crucial role in myofibril assembly and mechanotransduction, however, its regulatory functions remain unclear. To investigate the effects of NRAP loss-of-function in cardiac disease, a human induced pluripotent stem cell (hiPSC) line was generated carrying a biallelic NRAP-knockout (KO) using the CRISPR-Cas9 technology. Control and mutant cell lines were assessed for karyotype integrity, pluripotency, off-target effects, mycoplasma contamination, and differentiation into ectoderm, mesoderm, and endoderm. This hiPSC line provides a valuable tool to study how NRAP modulates cardiac function and contributes to disease progression.
No takes yet. Share an insight, caveat, or question.
Raabe et al. (2025) studied Cardiomyopathies. CRISPR-Cas9 biallelic NRAP-knockout vs. Control cell line was evaluated on Karyotype integrity, pluripotency, off-target effects, mycoplasma contamination, and differentiation into germ layers. A human induced pluripotent stem cell line carrying a biallelic NRAP-knockout was generated using CRISPR-Cas9 to serve as a tool for studying NRAP's role in cardiac function and disease progression.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: