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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestnik-bio-msu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Московского университета. Серия 16. Биология</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Moskovskogo universiteta. Seriya 16. Biologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0137-0952</issn><publisher><publisher-name>Lomonosov Moscow State University,  School of Biology</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestnik-bio-msu-443</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Геронтология</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Gerontology</subject></subj-group></article-categories><title-group><article-title>pH КУЛЬТУРАЛЬНОЙ СРЕДЫ И “СТАЦИОНАРНОЕ”/ХРОНОЛОГИЧЕСКОЕ СТАРЕНИЕ РАЗЛИЧНЫХ КЛЕТОК</article-title><trans-title-group xml:lang="en"><trans-title>PH OF CULTURE MEDIUM AND STATIONARY PHASE/CHRONOLOGICAL AGING OF DIFFERENT CELLS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Моргунова</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Morgunova</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Россия, 119234, Москва, Ленинские горы, д. 1, стр. 12</p><p>аспирантка сектора эволюционной цитогеронтологии биологического факультета МГУ. Тел.: 8-495-939-15-90</p></bio><bio xml:lang="en"><p>Leninskiye gory 1-12, Moscow, 119234, Russia</p></bio><email xlink:type="simple">morgunova@mail.bio.msu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клебанов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Klebanov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Россия, 119234, Москва, Ленинские горы, д. 1, стр. 12</p><p>научный сотрудник сектора эволюционной цитогеронтологии биологического факультета МГУ. Тел.: 8-495-939-15-90</p></bio><bio xml:lang="en"><p>Leninskiye gory 1-12, Moscow, 119234, Russia</p></bio><email xlink:type="simple">klebanov@mail.bio.msu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маротта</surname><given-names>Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Marotta</surname><given-names>F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Corso Matteotti 1/A, 20121 Milano, Italy</p><p>PhD, MD, руководитель Лаборатории исследований влияния на старение “РеДженера” и директор клиники Сан-Бабила, Корсо Маттеотти 1/А, 20121 Милан, Италия. Тел. +39-024077243</p></bio><bio xml:lang="en"><p>Corso Matteotti 1/A, 20121 Milano, Italy</p></bio><email xlink:type="simple">fmarchimede@libero.it</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хохлов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Khokhlov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Россия, 119234, Москва, Ленинские горы, д. 1, стр. 12</p><p>докт. биол. наук, зав. сектором эволюционной цитогеронтологии биологического факультета МГУ. Тел.: 8-495-939-15-90</p></bio><bio xml:lang="en"><p>Leninskiye gory 1-12, Moscow, 119234, Russia</p></bio><email xlink:type="simple">khokhlov@mail.bio.msu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ReGenera Research Group for Aging Intervention and San Babila Clinic</institution><country>Италия</country></aff><aff xml:lang="en"><institution>ReGenera Research Group for Aging Intervention and San Babila Clinic</institution><country>Italy</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>24</day><month>04</month><year>2017</year></pub-date><volume>72</volume><issue>2</issue><fpage>58</fpage><lpage>62</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Моргунова Г.В., Клебанов А.А., Маротта Ф., Хохлов А.Н., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Моргунова Г.В., Клебанов А.А., Маротта Ф., Хохлов А.Н.</copyright-holder><copyright-holder xml:lang="en">Morgunova G.V., Klebanov A.A., Marotta F., Khokhlov A.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestnik-bio-msu.elpub.ru/jour/article/view/443">https://vestnik-bio-msu.elpub.ru/jour/article/view/443</self-uri><abstract><p>Существует точка зрения, согласно которой хронологическое старение (ХС) дрожжей и “стационарное” старение (СС) культивируемых клеток человека и животных являются следствием закисления ростовой среды. Однако целый ряд появившихся в последнее время работ свидетельствует о том, что этот процесс хотя и влияет в определенной степени на скорость “старения” клеток в стационарной фазе, но не определяет его полностью. По-видимому, определяющим фактором здесь является ограничение клеточной пролиферации, которое приводит к “старению” клеток даже в физиологически оптимальных условиях. При ХС дрожжей и при СС клеток млекопитающих ростовая среда закисляется до pH≤4. Если не допускать накопления кислоты в среде, можно увеличить продолжительность жизни культуры, однако клетки всё равно будут вымирать, только с меньшей скоростью. Наблюдаемые эффекты закисления среды при ХС и СС могут объясняться активацией высоко консервативных сигнальных путей роста, приводящих к развитию окислительного стресса, а эти процессы, в свою очередь, могут быть вовлечены в старение многоклеточных организмов и связаны с возникновением у них возрастных заболеваний. Ранее мы изучали влияние буферной ёмкости культуральной среды на СС трансформированных клеток китайского хомячка. Было установлено, что наличие в среде HEPES в концентрации 20 мМ не влияет на скорость роста клеток. При этом ростовые кривые выходили на “плато” в один и тот же день. Однако в среде с HEPES клетки, с одной стороны, достигали меньшей насыщающей плотности, чем в контроле (т.е. были “старше” согласно критериям геронтологической клеточно-кинетической модели), а с другой – претерпевали СС с гораздо меньшей скоростью (но все равно “старели”). Можно полагать, что внеклеточный рН, который, кстати, хорошо коррелирует с внутриклеточным, является хотя и важным (концепция И.А. Аршавского о роли ацидотической альтерации в старении), но не ключевым фактором, определяющим выживание клеток в стационарной культуре.</p></abstract><trans-abstract xml:lang="en"><p>There is a point of view that the chronological aging (CA) of yeast and the stationary phase aging (SPA) of cultured animal and human cells are a consequence of growth medium acidification. However, a number of recent publications indicate that the process influences, to a certain extent, on the rate of “aging” of cells in the stationary phase of growth but does not determines it completely. Apparently, the key factor in this case is the cell proliferation restriction which leads to “aging” of the cells even under physiologically optimal conditions. During yeast CA and SPA of mammalian cells the medium is getting acidified to pH≤4. Preventing the medium acidification could make it possible to increase the culture life span, but the cells will still die out, albeit at a slower rate. Effects of the medium acidification observed during CA and SPA can be explained by the activation of highly conserved growth signaling pathways leading to the oxidative stress development; these processes, in turn, can be involved in aging of multicellular organisms and play a role in their age-related diseases. A while ago we studied the effect of buffer capacity of growth medium on SPA of transformed Chinese hamster cells. We found that HEPES at 20 mM had no effect on the cell growth, and both control and experimental growth curves reached plateau level on the same day. However, the cells grown with HEPES, on the one hand, reached lower saturation density than the control ones (i.e., were “older” in terms of the gerontological cell kinetics model), and on the other – underwent SPA at much slower rate (though still were “getting older”). It can be assumed that extracellular pH which, by the way, is well correlated with intracellular pH, is very important (I.A. Arshavsky’s concept on a role of the acidic alteration in aging) but not the key factor determining survival of cells in a stationary culture.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>pH ростовой среды</kwd><kwd>буферная ёмкость</kwd><kwd>клеточные культуры</kwd><kwd>“стационарное старение”</kwd><kwd>хронологическое старение</kwd><kwd>обзор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>growth medium pH</kwd><kwd>buffer capacity</kwd><kwd>cell cultures</kwd><kwd>stationary phase aging</kwd><kwd>chronological aging</kwd><kwd>review</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Khokhlov A.N. Which aging in yeast is “true”? // Moscow Univ. Biol. Sci. Bull. 2016. Vol. 71. N 1. P. 11–13.</mixed-citation><mixed-citation xml:lang="en">Khokhlov A.N. Which aging in yeast is “true”? // Moscow Univ. Biol. Sci. Bull. 2016. Vol. 71. N 1. 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