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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Доклады Академии наук</journal-id><journal-title-group><journal-title xml:lang="en">Доклады Академии наук</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Академии наук</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-5652</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">12155</article-id><article-id pub-id-type="doi">10.31857/S0869-56524841117-120</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Physiology</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Физиология</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Effect of taste receptor protein T1R3 on the development of islet tissue of the murine pancreas</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние вкусового рецепторного белка T1R3 на развитие островковой ткани поджелудочной железы мыши</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Murovets</surname><given-names>V. O.</given-names></name><name xml:lang="ru"><surname>Муровец</surname><given-names>В. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>murovetsvo@infran.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sozontov</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Созонтов</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>murovetsvo@infran.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zachepilo</surname><given-names>T. G.</given-names></name><name xml:lang="ru"><surname>Зачепило</surname><given-names>Т. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>murovetsvo@infran.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Pavlov Institute of Physiology of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт физиологии им. И.П. Павлова Российской Академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Saint-Petersburg State University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-04-10" publication-format="electronic"><day>10</day><month>04</month><year>2019</year></pub-date><volume>484</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>117</fpage><lpage>120</lpage><history><date date-type="received" iso-8601-date="2019-05-01"><day>01</day><month>05</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-05-01"><day>01</day><month>05</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Russian academy of sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Российская академия наук</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Russian academy of sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-5652/article/view/12155">https://journals.eco-vector.com/0869-5652/article/view/12155</self-uri><abstract xml:lang="en"><p>Protein T1R3, the main subunit of sweet, as well as amino acid, taste receptor, is expressed in the epithelium of the tongue and gastro intestinal tract, in β–cells of the pancreas, hypothalamus, and numerous other organs. Recently, convincing witnesses of T1R3 involvement in control of carbohydrate and lipid metabolism, and control of production of incretines and insulin, have been determined. In the study on Tas1r3-gene knockout mouse strain and parent strain C57Bl/6J as control, priority data concerning the effect of T1R3 on the morphological characteristics of Langerhans islets in the pancreas, are obtained. In Tas1r3 knockout animals, it is found that the size of the islets and their density in pancreatic tissue are reduced, as compared to the parent strain. Additionally, a decrease of expression of active caspase-3 in islets of gene-knockouts is demonstrated. The obtained data show that the lack of a functional, gene encoding sweet-taste receptor protein causes a dystrophy of the islet tissue and associates to the development of pathological changes in the pancreas specific to type-2 diabetes and obesity in humans.</p></abstract><trans-abstract xml:lang="ru"><p>При исследовании мышей с нокаутом гена <italic>Tas</italic><italic>1</italic><italic>r</italic><italic>3</italic> и родительской линии C57BL/6J в качестве контрольной получили приоритетные данные о влиянии белка T1R3 на морфологию островков Лангерганса поджелудочной железы. У мышей с нокаутом <italic>Tas</italic><italic>1</italic><italic>r</italic><italic>3</italic> выявили уменьшение размера островков и плотности их расположения по сравнению с мышами C57BL/6J и снижение экспрессии активной каспазы-3 в островковой ткани. Таким образом, отсутствие нормально функционирующего гена рецептора сладкого вкуса T1R3 приводит к дистрофии островковой ткани и сопряжено с развитием патологических изменений поджелудочной железы, характерных для диабета типа 2 и ожирения у человека.</p></trans-abstract><kwd-group xml:lang="en"><kwd>sweet taste receptor</kwd><kwd>T1R3</kwd><kwd>Tas1r3 gene knockout</kwd><kwd>pancreas</kwd><kwd>islet of Langerhans</kwd><kwd>caspase-3</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рецептор сладкого</kwd><kwd>T1R3</kwd><kwd>нокаут гена Tas1r3</kwd><kwd>поджелудочная железа</kwd><kwd>островок Лангерганса</kwd><kwd>каспаза 3</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Damak S., Rong M., Yasumatsu K., Kokrashvili Z., Varadarajan V., Zou S., Jiang P., Ninomiya Y., Margolskee R.F. // Science. 2003. V. 301. № 5634. 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