The AGO3 Knockout HeLa Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population with targeted disruption of the human AGO3 gene. This heterogeneous pool of HeLa cells carries diverse loss-of-function mutations introduced by Cas9-mediated gene editing, providing a robust model without clonal selection artifacts. It is intended for studying Argonaute protein function, miRNA-mediated gene silencing, and post-transcriptional regulation in an epithelial cancer background.
The host HeLa cell line, derived from human cervical adenocarcinoma, is HPV18-positive, resulting in E6-mediated degradation of p53 and functional tumor suppressor inactivation. HeLa exhibits an aneuploid karyotype and is widely used in cancer and molecular biology research. Its robust growth and genetic tractability make it ideal for gene knockout studies in the context of cervical carcinogenesis.
AGO3 is a core RISC component that binds mature miRNAs and guides them to target mRNAs such as CDKN1A, BCL2, MYC, and PTEN, mediating translational repression and mRNA decay. Its function is regulated by upstream factors including MYC, TP53, DICER, DROSHA, TRBP, PACT, and HSP90, and it interacts with GW182/TNRC6, DICER, TRBP, PACT, HSP90, and MOV10 within silencing complexes. Representative pathway components??AGO3, let-7 and miR-21 miRNAs, DICER, DROSHA, GW182, and target mRNAs??coordinate gene silencing; thus, AGO3 disruption uncouples miRNA guidance from effector functions, perturbing regulatory networks.
In HeLa cells, AGO3 knockout is particularly informative given the HPV-driven oncogenic background and miRNA dysregulation. p53 degradation by E6 alters miRNA expression, and loss of AGO3 further impairs miRNA-mediated control, enabling dissection of cell cycle progression, apoptosis, and viral carcinogenesis. This model allows comparison of non-catalytic AGO3 with other Argonaute proteins and assessment of functional redundancy in a cervical cancer context.
Applications include functional analysis of Argonaute proteins, miRNA target deconvolution, and miRNA-mediated cancer regulation studies. Assays such as Western blotting, RT-qPCR, miRNA luciferase reporters, RNA immunoprecipitation, RNA-seq, proteomics, and cell proliferation/apoptosis assays are readily applied. Researchers can probe non-catalytic AGO family roles in cervical cancer biology. For more information, contact Ascent Research.
