The ADAMTS14 Knockout LoVo Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the LoVo colorectal adenocarcinoma cell line, carrying targeted disruptions in the ADAMTS14 gene. This gene-edited population provides a loss-of-function model to investigate the role of the ADAMTS14 metalloproteinase in colorectal cancer biology. As a polyclonal pool, it captures a range of editing outcomes, enabling robust functional studies without the bias of single-cell clonal selection.
The LoVo host cell line was established from a lymph node metastasis of a 56-year-old male with colon adenocarcinoma, classified as Dukes’ type C. It is microsatellite stable (MSS) and harbors driver mutations in KRAS (G13D) and PIK3CA (H1047R), making it a widely used model for metastatic colorectal carcinoma. LoVo cells are particularly suited for studying invasion, metastasis, and drug resistance mechanisms.
ADAMTS14 encodes a secreted metalloproteinase that specifically cleaves procollagen types I, II, and III, an essential step in collagen fibril assembly and extracellular matrix (ECM) organization. It functions downstream of TGF-?? signaling: TGFB1 binding to TGFBR1 leads to SMAD2/3 activation, which transcriptionally upregulates ADAMTS14. The enzyme then directly interacts with and processes procollagen I, procollagen II, and procollagen III to generate mature collagen fibrils. This positions ADAMTS14 at a nexus connecting ECM-receptor interaction, focal adhesion, and PI3K-AKT pathways.
In the LoVo background, ADAMTS14 knockout disrupts collagen processing and ECM integrity. Given the cell line??s metastatic origin and RAS?CPI3K pathway activation, loss of ADAMTS14 is predicted to alter tumor microenvironment dynamics, potentially impairing cell migration and invasion through modified cell?CECM interactions. This model provides a platform to dissect how collagen fibril organization and TGF-??-driven ECM remodeling contribute to colorectal cancer progression in a genetically defined context.
These polyclonal knockout cells are suitable for a range of experimental applications. Gene expression validation can be performed by RT-qPCR, Western blotting, and immunofluorescence to confirm ADAMTS14 disruption. Functional assays include transwell migration and invasion assays, collagenase activity measurements, and ECM degradation studies to evaluate matrix remodeling and motility. Transcriptomic analysis via RNA-seq can reveal global pathway alterations. This model is ideal for studying colorectal carcinoma gene function, tumor?Cstroma interactions, and the role of collagen processing in metastasis. For further details, please contact Ascent Research.
