{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T11:43:13Z","timestamp":1778499793823,"version":"3.51.4"},"reference-count":34,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,5,18]],"date-time":"2022-05-18T00:00:00Z","timestamp":1652832000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Physiol."],"abstract":"<jats:p>Biological tissues are naturally three-dimensional (3D) opaque structures, which poses a major challenge for the deep imaging of spatial distribution and localization of specific cell types in organs in biomedical research. Here we present a 3D heart imaging reconstruction approach by combining an improved heart tissue-clearing technique with high-resolution light-sheet fluorescence microscopy (LSFM). We have conducted a three-dimensional and multi-scale volumetric imaging of the ultra-thin planes of murine hearts for up to 2,000 images per heart in x-, y-, and z three directions. High-resolution 3D volume heart models were constructed in real-time by the Zeiss Zen program. By using such an approach, we investigated detailed three-dimensional spatial distributions of two specific cardiomyocyte populations including HCN4 expressing pacemaker cells and Pnmt<jats:sup>+<\/jats:sup> cell-derived cardiomyocytes by using reporter mouse lines Hcn4<jats:sup>DreER\/tdTomato<\/jats:sup> and Pnmt<jats:sup>Cre\/ChR2\u2212tdTomato<\/jats:sup>. HCN4 is distributed throughout right atrial nodal regions (i.e., sinoatrial and atrioventricular nodes) and the superior-inferior vena cava axis, while Pnmt<jats:sup>+<\/jats:sup> cell-derived cardiomyocytes show distinct ventral, left heart, and dorsal side distribution pattern. Our further electrophysiological analysis indicates that Pnmt + cell-derived cardiomyocytes rich left ventricular (LV) base is more susceptible to ventricular arrhythmia under adrenergic stress than left ventricular apex or right ventricle regions. Thus, our 3D heart imaging reconstruction approach provides a new solution for studying the geometrical, topological, and physiological characteristics of specific cell types in organs.<\/jats:p>","DOI":"10.3389\/fphys.2022.779514","type":"journal-article","created":{"date-parts":[[2022,5,18]],"date-time":"2022-05-18T07:34:43Z","timestamp":1652859283000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["High-Resolution 3D Heart Models of Cardiomyocyte Subpopulations in Cleared Murine Heart"],"prefix":"10.3389","volume":"13","author":[{"given":"Huiying","family":"Ren","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaoli","family":"Pu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tianyi","family":"Sun","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tangting","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leiying","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhu","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher","family":"O\u2019Shea","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Davor","family":"Pavlovic","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoqiu","family":"Tan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ming","family":"Lei","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2022,5,18]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"126","DOI":"10.1038\/nature15250","article-title":"Deep Imaging of Bone Marrow Shows Non-dividing Stem Cells Are Mainly Perisinusoidal","volume":"526","author":"Acar","year":"2015","journal-title":"Nature"},{"key":"B2","doi-asserted-by":"publisher","first-page":"161","DOI":"10.1016\/j.cell.2017.03.008","article-title":"Tridimensional Visualization and Analysis of Early Human Development","volume":"169","author":"Belle","year":"2017","journal-title":"Cell"},{"key":"B3","doi-asserted-by":"publisher","first-page":"1827","DOI":"10.1016\/j.jacep.2020.09.012","article-title":"Evidence of Superior and Inferior Sinoatrial Nodes in the Mammalian Heart","volume":"6","author":"Brennan","year":"2020","journal-title":"JACC: Clin. 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