1. Department of Pathology, Dalian Medical University, Dalian 116044, China
2. Department of Human Anatomy, Dalian Medical University, Dalian 116044, China
3. School of Pharmaceutical Sciences, Dalian University of Technology, Dalian 116024, China
4. Genomics and Functional Proteomics Laboratories, Departments of Medicine and Medical Microbiology and Immunology, Creighton University Medical Center, NE 68131, USA
5. The Key Laboratory of Tumor Stem Cell Research of Liaoning Province, Dalian Medical University, Dalian 116044, China
6. Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China