The ANKRD50 Knockout A-549 Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout population in which the ANKRD50 gene has been disrupted in the A-549 human lung adenocarcinoma epithelial cell line. ANKRD50 encodes a component of the centriolar distal appendages, and its disruption generates a loss-of-function model that is valuable for investigating ciliogenesis and its downstream signaling pathways. As a polyclonal population, this product preserves the genetic diversity inherent to a bulk-edited pool, making it suitable for robust functional experiments without the biases introduced by single-cell cloning.
The A-549 host cell line, originally isolated from a 58-year-old Caucasian male with lung carcinoma, is an established model for human lung adenocarcinoma. These adherent alveolar epithelial cells are extensively used in cancer biology for drug screening, signal transduction, and migration studies. Their well-characterized epithelial phenotype renders them a relevant system for examining ciliary biology in the context of lung cancer, where cilia-dependent signaling is increasingly appreciated as a modulator of malignancy.
ANKRD50 functions as a scaffold at the distal appendages of the mother centriole, where it directly binds to CEP83, CEP89, SCLT1, FBF1, and CEP164, facilitating the docking of the ciliary vesicle and the initiation of primary cilium assembly. Its loss abrogates centriole maturation, prevents cilium formation, and attenuates Hedgehog signaling. Key effectors downstream of the cilium include the transmembrane protein SMO and the transcription factors GLI1/GLI2, which are trafficked by IFT88 and other intraflagellar transport components. Consequently, ANKRD50 knockout leads to reduced expression of Hedgehog target genes.
In A-549 cells, ANKRD50 disruption provides a unique system for studying the interplay between primary cilia and lung adenocarcinoma pathophysiology. Ciliogenesis defects have been correlated with altered proliferation, migration, and drug sensitivity in cancer cells, and impaired ANKRD50 function helps dissect these relationships. Additionally, the model connects to oral-facial-digital syndrome type 14 and broader ciliopathy mechanisms, offering a platform to explore centriolar appendage dysfunction in an epithelial cancer background.
Researchers can employ this polyclonal knockout pool in serum starvation-induced cilia formation assays, combined with immunofluorescence microscopy for centriole markers such as CEP164 and cilium markers like acetylated ??-tubulin. Western blotting and RT-qPCR enable analysis of ANKRD50 interactors and Hedgehog pathway activity. Wound healing assays further permit assessment of ciliary influence on cell migration. This model is also suited for cilia-targeted compound screening. For further information, please contact Ascent Research.
