The GNG12 Knockout A-549 Polyclonal Cells are a CRISPR/Cas9-edited heterogeneous population derived from the A-549 lung adenocarcinoma cell line, in which the GNG12 gene has been disrupted. This polyclonal pool, generated without single-cell cloning, provides a cost-effective and physiologically relevant loss-of-function model for studying the gamma-12 subunit of heterotrimeric G proteins. The use of a polyclonal population mitigates clonal artifacts and offers a representative sampling of gene-disrupted genotypes, making it suitable for functional genomics screens and pathway analysis in a disease-relevant context.
The host A-549 cell line is an adherent epithelial line originally isolated from a 58-year-old Caucasian male with lung adenocarcinoma. Widely employed as a model of non-small cell lung cancer, A-549 cells are instrumental in cancer biology research, including investigations of oncogenic signaling, tumor cell migration, and drug sensitivity. Their robust growth and well-characterized genetic background provide a reliable platform for creating knockout derivatives to dissect molecular mechanisms underlying lung adenocarcinoma progression.
GNG12 encodes the gamma-12 subunit, which assembles with G protein beta subunits (e.g., GNB1 and GNB2) to form the G?¦? dimer. Upon activation of G protein-coupled receptors (GPCRs) by ligands such as chemokines, hormones, or neurotransmitters, the heterotrimeric G protein dissociates, and the G?¦? complex directly modulates downstream effectors including adenylyl cyclase, phospholipase C beta (PLCB), and ion channels. This G?¦? signaling influences second messenger production (cAMP, IP3/DAG) and cascades such as the MAPK/ERK and PI3K-AKT pathways, ultimately regulating cellular proliferation, migration, and survival.
In the context of A-549 lung adenocarcinoma cells, disruption of GNG12 is expected to impair GPCR-G?¦?-mediated signaling, potentially altering key tumorigenic processes. By impairing GNG12 function, this model can reveal the specific contributions of gamma-12-containing G?¦? dimers to pathways frequently dysregulated in lung cancer, including cAMP-dependent PKA activation and MAPK/ERK-driven proliferation. The polyclonal knockout pool thus serves as a valuable tool to disentangle the roles of distinct G protein subunits in oncogenic signaling networks.
Researchers can employ these knockout cells in a wide array of functional assays to investigate GPCR signaling mechanisms in lung adenocarcinoma. Typical applications include Western blotting and RT-qPCR for knockout validation, cell proliferation and viability assays (MTT, BrdU), Transwell migration and invasion studies, cAMP accumulation measurements, and phospho-ERK detection by flow cytometry following GPCR agonist stimulation. The model also supports drug response profiling to identify compounds that act through G?¦?-dependent pathways. For further product details, technical data, or ordering information, please contact Ascent Research.
