Author contributions
DK Zheng, CH Cheng and YH Tang contributed to statistical analyses and
manuscript writing. ZX Fang and YH Tang contributed to interpretation of
the data. YC Chen, QH You, and XL Gao helped with collecting tissues
from the mice. KF Wang, HQ Zhou, and ZX Lan provided advice and revised
the manuscript. J Sun contributed to the study concept and design,
critical revision of the manuscript, and administrative support. All of
the authors critically reviewed and approved the final version of the
manuscript.