Fig. 1

Circ-PDE1C was highly expressed in OA tissues. A RT-qPCR was performed for circ-PDE1C expression examination. B The genic information of circ-PDE1C. C RNase R treatment and RT-qPCR were performed for stability detection of circ-PDE1C and PDE1C in CHON-001 cells. D RT-qPCR was performed for localization analysis of circ-PDE1C. ***P < 0.001