1 Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC, USA.
2 Department of Laboratory Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.
3 Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC, USA; Department of Biomedical Engineering, College of Engineering and Computing, University of South Carolina, Columbia, SC, USA.