Abstract
MICAL-like 2 belongs to a multi-domain protein family and involves in a series of biological processes. However, the expression patterns and biological functions of this gene during embryonic development have not been well characterized. Here, the model organism zebrafish (Danio rerio) is utilized to examine the gene expression and its roles in vascular development. Whole-mount in situ hybridization analysis demonstrates that zebrafish micall2a is a maternal gene that commences to express at the zygote stage, and continues to larval stage. Moreover, micall2a is dynamically expressed in zebrafish developing vascular system during a time window encompassing many key steps in embryonic vasculogenesis and angiogenesis. Loss-of-function of micall2a in zebrafish embryos leads to deficiency in caudal vein plexus (CVP) formation, while the dorsal aorta (DA), posterior cardinal vein (PCV), and intersegmental vessels (ISVs) are not influenced. Our study suggests a role of MICALL2 in vascular development and offers a potential therapeutic target for vascular associated diseases.
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This study was supported by grants from the National Natural Science Foundation of China (82000458).
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Wei Liu and Dongxu Fu contributed equally to this work. Changsheng Chen and Dong Liu supervised and designed this project. Changsheng Chen wrote the manuscript. Wei Liu and Dongxu Fu performed the experiments. Wei Liu, Dongxu Fu and Changsheng Chen analyzed the data.
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Statement on the welfare of animals. Animal-related experiments were carried out following the NIH Guidelines for the care and use of laboratory animals (http://oacu.od.nih.gov/regs/index.htm), and animal protocols were ethically approved by the Administration Committee of Experimental Animals of Nantong University, Jiangsu Province, China (Approval ID: SYXK(SU) 20200711–001 of January 30, 2021).
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Wei Liu, Fu, D., Liu, D. et al. Expression Patterns and Biological Roles of Micall2a during Zebrafish Vascular Development. Biol Bull Russ Acad Sci 50, 1106–1114 (2023). https://doi.org/10.1134/S1062359023600885
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DOI: https://doi.org/10.1134/S1062359023600885