Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China

2Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China

3National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China

Renal Division, Department of Medicine, Peking University First Hospital, Beijing 100034, China

5Institute of Nephrology, Peking University, Beijing 100034, China

6Key Laboratory of Renal Disease, Ministry of Health of China, Beijing 100034, China

7Research Units of Diagnosis and Treatment of Immune-mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing 100034, China