Nanobar array assay revealed complementary roles of BIN1 splice isoforms in cardiac T-tubule morphogenesis | |
Lin-Lin Li; Qian-Jin Guo; Hsin-Ya Lou; Jing-Hui Liang; Yang Yang; Xin Xing; Hong-Tao Li; Jing Han; Shan Shen; Hui Li | |
刊名 | Nano Letters |
2020 | |
卷号 | 20期号:20页码:9 |
关键词 | nanopillar array BIN1 splicing isoforms T-tubule muscle contraction heart disease |
ISSN号 | 1530-6984 |
DOI | 10.1021/acs.nanolett.0c01957 |
通讯作者 | Cui, Bianxiao(bcui@stanford.edu) ; Wang, Shi-Qiang(wsq@pku.edu.cn) |
英文摘要 | Bridging integrator-1 (BIN1) is a family of banana-shaped molecules implicated in cell membrane tubulation. To understand the curvature sensitivity and functional roles of BIN1 splicing isoforms, we engineered vertical nanobars on a cell culture substrate to create high and low curvatures. When expressed individually, BIN1 isoforms with phosphoinositide-binding motifs (pBIN1) appeared preferentially at high-curvature nanobar ends, agreeing well with their membrane tubulation in cardiomyocytes. In contrast, the ubiquitous BIN1 isoform without phosphoinositide-binding motif (uBIN1) exhibited no affinity to membranes around nanobars but accumulated along Z-lines in cardiomyocytes. Importantly, in pBIN1-uBIN1 coexpression, pBIN1 recruited uBIN1 to high-curvature membranes at nanobar ends, and uBIN1 attached the otherwise messy pBIN1 tubules to Z-lines. The complementary cooperation of BIN1 isoforms (comboBIN1) represents a novel mechanism of T-tubule formation along Z-lines in cardiomyocytes. Dysregulation of BIN1 splicing, e.g., during myocardial infarction, underlied T-tubule disorganization, and correction of uBIN1/pBIN1 stoichiometry rescued T-tubule morphology in heart disease. |
资助项目 | State Research and Development Program[2016YFA0500401] ; National Natural Science Foundation of China[91854209] ; National Natural Science Foundation of China[31630035] ; National Natural Science Foundation of China[31971116] ; National Natural Science Foundation of China[31327901] ; National Institute of Health (NIH)[1R01GM128142] ; National Institute of Health (NIH)[R01GM125737] ; Packard Fellowship for Science and Engineering |
WOS关键词 | N-BAR DOMAIN ; MEMBRANE CURVATURE ; SARCOPLASMIC-RETICULUM ; AMPHIPHYSIN-2 BIN1 ; ORGANIZATION ; GENERATION ; PROTEINS |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000571442000021 |
资助机构 | State Research and Development Program ; National Natural Science Foundation of China ; National Institute of Health (NIH) ; Packard Fellowship for Science and Engineering |
内容类型 | 期刊论文 |
源URL | [http://ir.ia.ac.cn/handle/173211/40590] |
专题 | 类脑智能研究中心_微观重建与智能分析 |
通讯作者 | Bianxiao Cui; Shi-Qiang Wang |
推荐引用方式 GB/T 7714 | Lin-Lin Li,Qian-Jin Guo,Hsin-Ya Lou,et al. Nanobar array assay revealed complementary roles of BIN1 splice isoforms in cardiac T-tubule morphogenesis[J]. Nano Letters,2020,20(20):9. |
APA | Lin-Lin Li.,Qian-Jin Guo.,Hsin-Ya Lou.,Jing-Hui Liang.,Yang Yang.,...&Shi-Qiang Wang.(2020).Nanobar array assay revealed complementary roles of BIN1 splice isoforms in cardiac T-tubule morphogenesis.Nano Letters,20(20),9. |
MLA | Lin-Lin Li,et al."Nanobar array assay revealed complementary roles of BIN1 splice isoforms in cardiac T-tubule morphogenesis".Nano Letters 20.20(2020):9. |
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