DNAJC15 Knockout NCI-H1299 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the NCI-H1299 human non-small cell lung cancer cell line. This product provides a genetically disrupted DNAJC15 locus, resulting in a loss-of-function model for investigating mitochondrial biology and lung cancer pathology. The polyclonal nature captures a range of CRISPR-induced editing events, enabling robust population-level analyses without clonal selection biases. Researchers can use this model to dissect the contributions of DNAJC15 to mitochondrial function, apoptosis, and drug resistance mechanisms in a physiologically relevant cancer cell background.
The NCI-H1299 cell line was originally established from a lymph node metastasis of a lung adenocarcinoma from a 43-year-old male patient. As a widely used model of non-small cell lung cancer, NCI-H1299 cells are characterized by their metastatic potential and serve as a key system for studying tumor progression and therapeutic resistance. The absence of p53 protein expression in these cells further accentuates their utility in examining p53-independent apoptotic pathways and stress responses, making them particularly suitable for probing mitochondrial-mediated cell death mechanisms triggered by DNAJC15 loss.
DNAJC15 encodes a mitochondrial co-chaperone that critically regulates protein import and cristae architecture through direct interaction with HSPA9 (mortalin), a major component of the mitochondrial import machinery. It functions within the mitochondrial unfolded protein response (UPRmt) pathway, acting downstream of stress signals that activate transcription factors ATF4 and CHOP. DNAJC15 collaborates with chaperones HSPD1 and proteases LONP1 and CLPP to maintain proteostasis and respiratory chain integrity. Disruption of DNAJC15 impairs mitochondrial respiration, elevates reactive oxygen species (ROS) production, and sensitizes cells to apoptotic stimuli, thereby linking mitochondrial quality control to cell death execution.
In the NCI-H1299 lung adenocarcinoma background, DNAJC15 knockout provides a powerful tool to dissect how mitochondrial dysfunction influences metastatic behavior and drug sensitivity. Given the central role of mitochondrial metabolism in cancer cell adaptation, the loss of DNAJC15-mediated co-chaperone activity can reveal vulnerabilities in redox homeostasis and energy production that may be exploited therapeutically. This model is especially relevant for investigating resistance to chemotherapy and targeted agents, as mitochondrial priming can dictate apoptotic thresholds. Moreover, the polyclonal population reflects heterogeneous editing outcomes, mirroring the genetic diversity found in tumors and allowing assessment of overall pathway perturbation.
Researchers can employ this knockout cell pool in a broad array of functional studies, including western blotting and RT-qPCR to confirm gene disruption and downstream target expression, Seahorse metabolic flux analysis to measure oxygen consumption and glycolytic rates, apoptosis assays to evaluate cell death sensitivity, and immunofluorescence to visualize mitochondrial morphology changes. These cells are well-suited for lung cancer functional genomics, mechanistic studies of mitochondrial import and UPRmt signaling, and drug resistance screens. For further inquiries regarding product specifications or experimental protocols, please contact Ascent Research.
