Tian chu chu

Tian chu chu


Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 March 2025 in Microorganisms
Verified
Journal Article
Open access
PDF file
XRXiang Ren
Xiang Ren
ZHZhiping Hei
Zhiping Hei
KJKai Ji
Kai Ji
YYYan Yan
Yan Yan
TCTian chu chu
Tian chu chu
YSYuning Sun
Yuning Sun
The Minute Virus of Canines (MVC), belonging to the genus Bocaparvovirus within the family Parvoviridae, is associated with enteritis and embryonic infection in neonatal canines. Viral attachment to host cells is a critical step in infection, and viral protein 2 (VP2) as an important structural protein of MVC influences host selection and infection severity. Nevertheless, little is known about the interaction between VP2 protein and host cells. In this study, we identified that VP2 directly interacts with the kinase domain of RhoA-associated protein kinase 1 (ROCK1) by using mass spectrometry and immunoprecipitation approach and demonstrated that the RhoA/ROCK1/myosin light chain 2 (MLC2) signaling pathway was activated during the early stage of MVC infection in Walter Reed canine cell/3873D (WRD) cells. Further studies indicated that RhoA/ROCK1-mediated phosphorylation of MLC2 triggers the contraction of the actomyosin ring, disrupts tight junctions, and exposes the tight junction protein Occludin, which facilitates the interaction between VP2 and Occludin. Specific inhibitors of RhoA and ROCK1 restored the MVC-induced intracellular translocation of Occludin and the increase in cell membrane permeability. Moreover, the two inhibitors significantly reduced viral protein expression and genomic copy number. Collectively, our study provides the first evidence that there is a direct interaction between the structural protein VP2 of MVC and ROCK1, and that the tight junction protein Occludin can serve as a potential co-receptor for MVC infection, which may offer new targets for anti-MVC strategies.

3 February 2026 in Microbial Pathogenesis
Verified
Journal Article
Closed access
XRXiang Ren
Xiang Ren
SSShengbin Si
Shengbin Si
YXYishu Xiao
Yishu Xiao
ZHZhiping Hei
Zhiping Hei
ZZZhijie Zhang
Zhijie Zhang
YSYuning Sun
Yuning Sun