PTGDR and non-small cell lung carcinoma: In the first place, we found that OSBPL5 mRNA and protein levels were decreased under sh-LMCD1-AS1 transfection, but pcDNA3.1/OSBPL5 alleviated such decrease in NSCLC cells (Fig. 5A, Additional file 1: Figs. S2A, S3A-B).