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Lung cancer is one of the most serious leading cancers with high incidence globally. Identifying molecular markers is key for disease diagnosis and treatment. Coal dust might be important triggering factors in disease development. Here, we first performed RNA-seq-based screening in coal dust treated and nontreated RAW264.7 cell lines.  PHLDB2  was found to be the top differentially expressed gene. By retrieving TCGA lung cancer dataset, we observed that  PHLDB2  showed upregulations in males and smoker patients. Patients with lower  PHLDB2  expression survived longer than those with higher expressions. Furthermore,  PHLDB2  was negatively correlated with EMT makers, and a total of 2.74% mutation rate were observed in 1,059 patients. This finding highlights the critical role of  PHLDB2  in lung cancer development.  PHLDB2  might be a molecular maker for disease diagnosis or treatment.

RNA-seq-Based Screening in Coal Dust-Treated Cells Identified PHLDB2 as a Novel Lung Cancer-Related Molecular Marker