ADAMTS14 Knockout CAL-27 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the CAL-27 human tongue squamous cell carcinoma line. This product provides a loss-of-function model for studying ADAMTS14, a zinc metalloprotease that functions as an aminoprocollagen peptidase, crucial for collagen maturation and extracellular matrix (ECM) organization. The CRISPR/Cas9-mediated disruption of the ADAMTS14 gene enables detailed investigation of its roles in collagen fibrillogenesis, ECM remodeling, and tumor microenvironment dynamics.
CAL-27 is an epithelial cell line established from a human tongue squamous cell carcinoma, serving as a robust model for head and neck cancer research. These cells exhibit characteristic features of invasive carcinoma, including altered cell adhesion and enhanced motility, making them particularly suitable for examining factors that regulate cancer cell behavior within the ECM-rich tumor microenvironment.
Mechanistically, ADAMTS14 specifically removes the N-terminal propeptides from fibrillar procollagens I, II, and III, encoded by COL1A1, COL1A2, and COL3A1. This cleavage is essential for collagen fibril assembly and subsequent crosslinking by lysyl oxidase (LOX), which determines tissue tensile strength. ADAMTS14 is transcriptionally regulated by TGF??1 through the SMAD2/3 signaling cascade, and it physically interacts with procollagens, fibronectin, and decorin in the ECM. Its activity thus directly promotes collagen processing and ECM structural integrity.
In the CAL-27 context, ADAMTS14 knockout likely impairs collagen maturation, leading to disrupted matrix architecture and altered cell?Cmatrix interactions. This may influence tumor cell invasion, migration, and metastatic potential, as ADAMTS14 has been implicated in osteoarthritis and musculoskeletal disorders, with emerging evidence suggesting a role in cancer progression. The model therefore offers a pathophysiologically relevant system to dissect how ECM remodeling affects squamous cell carcinoma aggressiveness.
This polyclonal knockout population is well-suited for a variety of research applications, including studies on collagen processing, ECM assembly, and tumor microenvironment remodeling. Representative assays compatible with this model include western blotting for N-propeptide cleavage, immunofluorescence staining of collagen I/III and fibronectin, Boyden chamber migration and invasion assays, and mass spectrometry-based collagen cross-linking analysis. Furthermore, it enables functional genomics screens and drug testing targeting ECM-related pathways. Researchers are encouraged to contact Ascent Research for further technical details and ordering information.
