Theranostics 2023; 13(7):2154-2175. doi:10.7150/thno.77735 This issue Cite

Research Paper

Multilineage commitment of Sca-1+ cells in reshaping vein grafts

Zhichao Ni†,1, Lingxia Lyu†,1, Hui Gong1, Luping Du1, Zuoshi Wen1, Hua Jiang2, Hao Yang2, Yanhua Hu1, Bohuan Zhang1, Qingbo Xu1✉, Xiaogang Guo1✉, Ting Chen1,3✉

1. Department of Cardiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
2. Department of kidney disease center, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, Zhejiang, PR China.
3. Alibaba-Zhejiang University Joint Research Center of Future Digital Healthcare, Hangzhou, China.
These authors contributed equally.

Citation:
Ni Z, Lyu L, Gong H, Du L, Wen Z, Jiang H, Yang H, Hu Y, Zhang B, Xu Q, Guo X, Chen T. Multilineage commitment of Sca-1+ cells in reshaping vein grafts. Theranostics 2023; 13(7):2154-2175. doi:10.7150/thno.77735. https://www.thno.org/v13p2154.htm
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Abstract

Graphic abstract

Vein graft failure remains a significant clinical problem. Similar to other vascular diseases, stenosis of vein grafts is caused by several cell lines; however, the sources of these cells remain unclear. The objective of this study was to investigate the cellular sources that reshape vein grafts. By analyzing transcriptomics data and constructing inducible lineage-tracing mouse models, we investigated the cellular components of vein grafts and their fates. The sc-RNAseq data suggested that Sca-1+ cells were vital players in vein grafts and might serve as progenitors for multilineage commitment. By generating a vein graft model in which the venae cavae from C57BL/6J wild-type mice were transplanted adjacent to the carotid arteries of Sca-1(Ly6a)-CreERT2; Rosa26-tdTomato mice, we demonstrated that the recipient Sca-1+ cells dominated reendothelialization and the formation of adventitial microvessels, especially at the perianastomotic regions. In turn, using chimeric mouse models, we confirmed that the Sca-1+ cells that participated in reendothelialization and the formation of adventitial microvessels all had a non-bone-marrow origin, whereas bone-marrow-derived Sca-1+ cells differentiated into inflammatory cells in vein grafts. Furthermore, using a parabiosis mouse model, we confirmed that non-bone-marrow-derived circulatory Sca-1+ cells were vital for the formation of adventitial microvessels, whereas Sca-1+ cells derived from local carotid arteries were the source of endothelium restoration. Using another mouse model in which venae cavae from Sca-1 (Ly6a)-CreERT2; Rosa26-tdTomato mice were transplanted adjacent to the carotid arteries of C57BL/6J wild-type mice, we confirmed that the donor Sca-1+ cells were mainly responsible for smooth muscle cells commitment in the neointima, particularly at the middle bodies of vein grafts. In addition, we provided evidence that knockdown/knockout of Pdgfrα in Sca-1+ cells decreased the cell potential to generate SMCs in vitro and decreased number of intimal SMCs in vein grafts. Our findings provided cell atlases of vein grafts, which demonstrated that recipient carotid arteries, donor veins, non-bone-marrow circulation, and the bone marrow provided diverse Sca-1+ cells/progenitors that participated in the reshaping of vein grafts.


Citation styles

APA
Ni, Z., Lyu, L., Gong, H., Du, L., Wen, Z., Jiang, H., Yang, H., Hu, Y., Zhang, B., Xu, Q., Guo, X., Chen, T. (2023). Multilineage commitment of Sca-1+ cells in reshaping vein grafts. Theranostics, 13(7), 2154-2175. https://doi.org/10.7150/thno.77735.

ACS
Ni, Z.; Lyu, L.; Gong, H.; Du, L.; Wen, Z.; Jiang, H.; Yang, H.; Hu, Y.; Zhang, B.; Xu, Q.; Guo, X.; Chen, T. Multilineage commitment of Sca-1+ cells in reshaping vein grafts. Theranostics 2023, 13 (7), 2154-2175. DOI: 10.7150/thno.77735.

NLM
Ni Z, Lyu L, Gong H, Du L, Wen Z, Jiang H, Yang H, Hu Y, Zhang B, Xu Q, Guo X, Chen T. Multilineage commitment of Sca-1+ cells in reshaping vein grafts. Theranostics 2023; 13(7):2154-2175. doi:10.7150/thno.77735. https://www.thno.org/v13p2154.htm

CSE
Ni Z, Lyu L, Gong H, Du L, Wen Z, Jiang H, Yang H, Hu Y, Zhang B, Xu Q, Guo X, Chen T. 2023. Multilineage commitment of Sca-1+ cells in reshaping vein grafts. Theranostics. 13(7):2154-2175.

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