Figure 3. lncRNA CHCHD4P4 is upregulated in the HK-2 cells that were exposed to calcium oxalate monohydrate. A, Application of the BLAST algorithm in mouse and human lncRNAs identified 15 pairs of homologous lncRNAs (Table 2). B, Validation of the differential expression of CHCHD4P4 and AU015836 in the CaOx models and control groups using RT-PCR. C, Nuclear and cytoplasmic CHCHD4P4 RNAs from the HK-2 cells. Data are reported a means±SD. *P<0.05, **P<0.01 (t-test).