The COL5A1 Knockout Raji Polyclonal Cells product consists of a CRISPR/Cas9-edited polyclonal Raji cell population with targeted disruption of the COL5A1 gene. This loss-of-function model is designed to enable investigation of collagen type V alpha-1 chain function in a human B lymphoblastoid background. The polyclonal knockout format provides a heterogeneous pool of edited cells, suitable for bulk analyses and functional studies without the bottlenecks of single-cell cloning. Researchers can use these cells to explore the cellular consequences of COL5A1 ablation in an immune cell context.
The Raji host cell line is a well-characterized human B lymphocyte model derived from a Burkitt lymphoma patient. These suspension-adapted, Epstein-Barr virus (EBV)-positive lymphoblastoid cells retain key features of B cell biology, including surface immunoglobulin expression and the capacity for antibody secretion, and are widely employed in immunological and oncological research. Their rapid growth and genetic tractability make them an ideal platform for CRISPR-based gene editing. The knockout of COL5A1 in Raji cells thus provides a unique tool to study extracellular matrix-related gene function in a hematopoietic lineage.
COL5A1 encodes the alpha-1 chain of type V collagen, a minor fibrillar collagen that nucleates and regulates the diameter of type I collagen fibrils in the extracellular matrix (ECM). This protein interacts directly with collagens I and III, as well as with small leucine-rich proteoglycans such as decorin and lumican, and serves as a ligand for integrins ??1??1 and ??2??1. Its expression is regulated by TGF-??/SMAD signaling, and downstream it modulates focal adhesion assembly through FAK and SRC, activates MAPK/ERK cascades, and influences Rho GTPase activity and matrix metalloproteinase (MMP) secretion. Therefore, COL5A1 ablation disrupts collagen fibrillogenesis and integrin-mediated mechanotransduction.
In the Raji cellular context, COL5A1 knockout allows interrogation of its potential roles beyond classical connective tissues. Although Raji cells grow in suspension, they express functional integrins and can engage with ECM substrates, making them relevant for studying adhesion and signaling events. Loss of COL5A1 in this B-cell model can reveal how collagen V-related pathways impact lymphoma cell behavior, including migration, survival signaling, and interaction with the tumor microenvironment. This system may uncover novel functions of COL5A1 in immune cell adhesion or ECM remodeling.
Applications of COL5A1 Knockout Raji Polyclonal Cells include detailed mechanistic studies of ECM organization, collagen fibrillogenesis defects, and associated pathologies such as classical Ehlers-Danlos syndrome. They are well-suited for assays evaluating integrin signaling, phospho-FAK levels, MMP activity, and gene expression changes via RT-qPCR or RNA-seq. These cells also constitute a valuable resource for drug testing in fibrotic disease and tumor microenvironment research. For additional product details and ordering information, please contact Ascent Research.
