The TRU-TCA1-1 Knockout THP-1 Cell Line is a CRISPR/Cas9-edited knockout cell line in which the TRU-TCA1-1 gene has been stably disrupted in the human THP-1 acute monocytic leukemia cell line. This engineered loss-of-function model facilitates the study of TRU-TCA1-1, a gene encoding a mitochondrial protein implicated in the regulation of metabolism, apoptosis, and cell survival, within a monocytic environment.
THP-1 is a spontaneously immortalized monocytic cell line derived from the peripheral blood of a patient with acute monocytic leukemia. It is a widely used model system for investigating monocyte-to-macrophage differentiation, innate immune signaling, and leukemogenesis. THP-1 cells respond robustly to inflammatory stimuli such as TNF?? and IL-1?? and can be differentiated into macrophage-like cells with phorbol 12-myristate 13-acetate (PMA), making them ideal for studies of inflammation and signal transduction.
The TRU-TCA1-1 protein is localized to mitochondria and functions as a putative integrator of metabolic and apoptotic signals. Upstream regulators include the inflammatory cytokines TNF?? and IL-1??, the growth factor GM-CSF, and the differentiation inducer PMA. Downstream, TRU-TCA1-1 influences the activity of BCL2 family apoptotic regulators, the metabolic kinase PDK1, and the transcription factors NF-??B and AP-1. The protein interacts with HSP90, mitochondrial import receptors, and metabolic enzyme complexes, suggesting involvement in mitochondrial protein import and assembly of metabolic enzyme complexes. Through these interactions, TRU-TCA1-1 couples mitochondrial function to NF-??B?Cdependent survival and metabolic adaptation, and its disruption in THP-1 cells is expected to impair these processes, leading to enhanced sensitivity to inflammatory stimuli and altered proliferation.
Knockout of TRU-TCA1-1 in THP-1 cells creates a pertinent model for examining how mitochondrial dysfunction affects leukemia cell biology and inflammatory responses. The THP-1 line, which displays constitutive NF-??B and AP-1 activity, provides a sensitized background that amplifies the consequences of metabolic perturbation. This enables researchers to study the intersection of mitochondrial metabolism, apoptosis, and inflammatory signaling in a system that recapitulates key features of acute monocytic leukemia and monocyte biology.
This knockout cell line supports a diverse range of experimental applications. Standard assays include western blotting for cleaved caspase-3 to assess apoptosis, RT-qPCR for NF-??B target genes such as IL6 and TNF, flow cytometry with JC-1 staining for mitochondrial membrane potential, and MTT assays for cell viability. More advanced analyses encompass metabolic flux measurements to evaluate glycolysis and oxidative phosphorylation, RNA sequencing for transcriptome-wide changes, and co-immunoprecipitation to identify protein interaction partners. The line is well suited for drug screening targeting metabolic and inflammatory pathways, functional genomics studies, and mechanistic investigations of leukemia biology. For further information or technical inquiries, please contact Ascent Research.
