TBXA2R Knockout 4T1 Cell Line

The choice depends on whether you are studying TBXA2R's role in thromboxane A2 signaling in tumor cells, or its contributions to breast cancer metastasis biology. The Knockout line is appropriate for asking whether TBXA2R is required for tumor cell-intrinsic responses to thromboxane signaling — particularly relevant in 4T1, a triple-negative breast cancer model with established lung metastasis behavior. Overexpression is useful for studying whether elevated TBXA2R enhances metastatic capacity or for distinguishing TPα and TPβ isoform-specific functions. For breast cancer metastasis research, the EDITGENE TBXA2R Knockout in 4T1 is particularly valuable because 4T1 is a widely used murine syngeneic model — TBXA2R loss effects can be assessed both in vitro and in immune-competent BALB/c mice (the genetic background for 4T1). This makes the model especially relevant for studying tumor cell-intrinsic versus immune-cell-mediated contributions of TBXA2R signaling to metastasis. Rescue with wild-type or signaling-deficient TBXA2R enables mechanistic dissection.

Primary applications: • Thromboxane signaling: thromboxane A2 mimetic (U46619) stimulation followed by phosphoinositide hydrolysis, calcium mobilization, or Gq/G12-mediated signaling readouts. • Breast cancer metastasis: in vivo orthotopic 4T1 implantation in BALB/c mice with lung metastasis quantification to assess tumor cell-intrinsic TBXA2R contributions. • Migration and invasion: wound healing, Transwell invasion, and trans-endothelial migration assays. • Anti-thromboxane therapeutic specificity: genetic control for testing thromboxane receptor antagonists in cancer contexts. EDITGENE recommends this model for researchers investigating tumor cell-intrinsic thromboxane signaling, breast cancer metastasis biology, and thromboxane pathway pharmacology in syngeneic mouse models.

Yes. TBXA2R rescue experiments require attention to GPCR topology and isoform specificity: • Construct design: use a codon-modified TBXA2R sequence with a C-terminal tag (FLAG, HA). TBXA2R is a seven-transmembrane GPCR — N-terminal tags after the signal peptide are tolerated; the third intracellular loop is critical for Gq/G12 coupling. • Isoform-specific rescue: human TPα and TPβ isoforms differ in C-terminal tails and downstream signaling — for mouse 4T1 context, ensure the rescue construct matches the studied physiology. • Signaling-deficient rescue: G-protein coupling mutations dissect ligand binding from intracellular signaling. • Functional readout: rescue should restore U46619-induced calcium mobilization and downstream signaling. 4T1 is an aggressively proliferating murine breast cancer cell line; transduction with lentivirus or retrovirus works at standard efficiency. The BALB/c-syngeneic genetic background is preserved through standard rescue protocols, enabling in vivo immune-competent xenograft studies.