The Aldh1a2 Knockout PC12 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the rat PC12 pheochromocytoma cell line, designed to disrupt the Aldh1a2 gene and eliminate retinaldehyde dehydrogenase 2 (RALDH2) function. This heterogeneous edited population provides a robust loss-of-function model for investigating retinoic acid biosynthesis in neuronal signaling. The polyclonal format reflects diverse editing outcomes that collectively ablate target-gene activity, suitable for population-level studies of Aldh1a2-dependent processes.
The PC12 host cell line originates from rat adrenal medullary pheochromocytoma and serves as a well-established neuronal-like cell model. These catecholamine-producing, neurosecretory cells respond to nerve growth factor (NGF) by extending neurites and differentiating into sympathetic neuron-like cells. PC12 cells are widely used to study neuronal differentiation, signal transduction, and neurosecretion, providing a physiologically relevant context for dissecting neurogenesis and neural plasticity.
Aldh1a2 encodes RALDH2, the primary enzyme that oxidizes retinaldehyde to all-trans-retinoic acid (atRA), which regulates gene expression via RAR/RXR transcription factors. RALDH2 activity is modulated by upstream morphogens FGF8, SHH, and BMP4, and requires cofactors such as NAD+ and interactions with CRBP1 (Rbp1) and RDH10. atRA-activated RAR??/RXR?? heterodimers transcriptionally control key targets including Hoxa1, Hoxb1, CYP26A1, and differentiation markers Vimentin and Nestin. In Aldh1a2 knockout cells, loss of RALDH2 abolishes atRA synthesis, disrupting this signaling cascade and creating a clean background for retinoid-dependent gene regulation studies.
Within PC12 cells, retinoic acid signaling critically influences NGF-induced neuronal differentiation and neurite outgrowth. The Aldh1a2 knockout impairs retinaldehyde-to-atRA conversion, leading to attenuated Hox gene expression and altered cytoskeletal dynamics, measurable via ??III-tubulin and Nestin markers. This model permits precise mapping of the interplay between retinoic acid and neurotrophin pathways, revealing how retinoid metabolism shapes neurodevelopmental processes. It thereby serves as an essential tool for dissecting RALDH2-dependent signaling in a cell type that mimics sympathetic neuron biology.
This polyclonal Aldh1a2 knockout PC12 product is suited for elucidating retinoic acid’s role in neuronal differentiation, studying neurodevelopmental defects, and testing retinoid pathway modulators. Representative assays include western blotting for RALDH2, RT-qPCR for Hoxa1 and Hoxb1, LC-MS retinoic acid quantitation, NGF-induced neurite outgrowth assessment, and immunofluorescence for ??III-tubulin and Nestin. For additional technical inquiries, please contact Ascent Research.
