{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T16:19:25Z","timestamp":1762100365471,"version":"build-2065373602"},"reference-count":45,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2005,5,11]],"date-time":"2005-05-11T00:00:00Z","timestamp":1115769600000},"content-version":"vor","delay-in-days":71,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Microscopy Res &amp; Technique"],"published-print":{"date-parts":[[2005,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>In a previous report we described the survival and contractile function of mouse embryonic stem cell\u2010derived cardiomyocytes in the host retroperitoneum. To further understand the nature of embryonic stem cell\u2010derived cardiomyocytes, the study assessed the synthesis of natriuretic peptides in ectopic myocardial tissues of embryonic stem cell origin. Cardiomyocytes formed in embryoid body outgrowths were transplanted into the retroperitoneum of adult nude mice, and the myocardial tissues that developed were characterized by RT\u2010PCR and immunohistochemistry concerning atrial and brain natriuretic peptides (ANP, BNP). In the outgrowths of embryoid bodies in vitro, gene expression of ANP and BNP was detected by RT\u2010PCR and granules positive for the peptides were identified in a few cardiomyocytes by light and electron microscopic immunocytochemistry. Seven days after transplantation the transplants exhibited multidifferentiated teratoma tissues. Developing chamber myocardial tissues positive for cardiac troponin I, cadherin, and connexin 43 were evident in the transplants, which contained ANP\u2010positive cardiomyocytes. Transplants with beating bundles were observed 30 days after transplantation, in which gene expression of both natriuretic peptides was detected. Myocardial tissues with abundant ANP\u2010immunoreactivity, as well as with BNP\u2010immunoreactivity to a lesser extent, were evident in the transplants. Also, myocardial tissues without immunoreactivity for natriuretic peptides were observed. Immunoelectron microscopy showed discernible secretory granules containing ANP and\/or BNP in the cardiomyocytes. These results showed that part of the cardiomyocytes in embryonic stem cell\u2010derived ectopic myocardial tissues are capable of producing natriuretic peptides, which suggests that they may be used as an endocrine source for cardiac hormones. Microsc. Res. Tech. 66:165\u2013172, 2005. \u00a9 2005 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/jemt.20152","type":"journal-article","created":{"date-parts":[[2005,5,11]],"date-time":"2005-05-11T16:16:46Z","timestamp":1115828206000},"page":"165-172","source":"Crossref","is-referenced-by-count":4,"title":["Natriuretic peptides in ectopic myocardial tissues originating from mouse embryonic stem cells"],"prefix":"10.1002","volume":"66","author":[{"given":"Kohei","family":"Johkura","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li","family":"Cui","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fengming","family":"Yue","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keiko","family":"Nitta","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shunsuke","family":"Takei","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasumitsu","family":"Okouchi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuhiko","family":"Asanuma","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naoko","family":"Ogiwara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katsunori","family":"Sasaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,5,11]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1152\/ajpendo.1990.259.3.E312"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1006\/dbio.1993.1034"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1177\/002215540104901012"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.RES.0000027865.61704.32"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1210\/edrv-6-2-107"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1006\/dbio.2000.9753"},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1369\/jhc.3A6241.2004"},{"key":"e_1_2_1_9_1","first-page":"R1093","article-title":"Release of natriuretic factor from rat heart\u2010lung preparation by atrial distension","volume":"247","author":"Dietz JR","year":"1984","journal-title":"Am J Physiol"},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1152\/ajpheart.00677.2001"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/jemt.10154"},{"key":"e_1_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.83.18.6697"},{"key":"e_1_2_1_13_1","doi-asserted-by":"publisher","DOI":"10.1101\/gad.222902"},{"key":"e_1_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/jemt.20057"},{"key":"e_1_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.84.3.1203"},{"key":"e_1_2_1_16_1","doi-asserted-by":"publisher","DOI":"10.3727\/000000003108747361"},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1177\/002215540305100904"},{"key":"e_1_2_1_18_1","first-page":"217","article-title":"The natriuretic peptide system in the brain: implications in the central control of cardiovascular and neuroendocrine functions","volume":"13","author":"Imura H","year":"1992","journal-title":"Front Neuroendocrinol"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.90.16.7799"},{"key":"e_1_2_1_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0008-6363(02)00730-7"},{"key":"e_1_2_1_21_1","doi-asserted-by":"publisher","DOI":"10.1172\/JCI200112131"},{"key":"e_1_2_1_22_1","doi-asserted-by":"publisher","DOI":"10.1038\/nbt1014"},{"key":"e_1_2_1_23_1","doi-asserted-by":"publisher","DOI":"10.1172\/JCI118769"},{"key":"e_1_2_1_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9258(19)89483-8"},{"key":"e_1_2_1_25_1","doi-asserted-by":"publisher","DOI":"10.1038\/314264a0"},{"key":"e_1_2_1_26_1","doi-asserted-by":"publisher","DOI":"10.1210\/jc.79.5.1476"},{"key":"e_1_2_1_27_1","first-page":"II332","article-title":"Transplantation of fetal myocardial tissue into the infarcted myocardium of rat. 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