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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">54551</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>MEDICAL BIOPHYSICS AND BIOPHYSICAL CHEMISTRY</subject>
    </subj-group>
    <subj-group>
     <subject>МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">The effect of amyloid fibrils from lysozyme on the lipid bilayer of human lymphocytes under the conditions of oxidative stress in vitro.</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Влияние амилоидных фибрилл из лизоцима на состояние липидного бислоя лимфоцитов человека в условиях окислительного стресса in vitro</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Венская</surname>
       <given-names>Е И</given-names>
      </name>
      <name xml:lang="en">
       <surname>Venskaia</surname>
       <given-names>E И</given-names>
      </name>
     </name-alternatives>
     <email>e.i.rusina@mail.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Лукьяненко</surname>
       <given-names>Л М</given-names>
      </name>
      <name xml:lang="en">
       <surname>Lukyanenko</surname>
       <given-names>L М</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Скоробогатова</surname>
       <given-names>А С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Skarabahatava</surname>
       <given-names>A С</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт биофизики и клеточной инженерии НАН Беларуси</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Biophysics and Cell Engineering of NAS of Belarus</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт биофизики и клеточной инженерии НАН Беларуси</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Biophysics and Cell Engineering of NAS of Belarus</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт биофизики и клеточной инженерии НАН Беларуси</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Biophysics and Cell Engineering of NAS of Belarus</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2020-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2020</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2020-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2020</year>
   </pub-date>
   <volume>5</volume>
   <issue>3</issue>
   <fpage>450</fpage>
   <lpage>455</lpage>
   <history>
    <date date-type="received" iso-8601-date="2020-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2020</year>
    </date>
    <date date-type="accepted" iso-8601-date="2020-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2020</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54551/view">https://rusjbpc.ru/en/nauka/article/54551/view</self-uri>
   <abstract xml:lang="ru">
    <p>В данной работе изучено влияние амилоидных фибрилл из лизоцима на физико-химическое состояние липидного бислоя мембран лимфоцитов человека в условиях окислительного стресса. Для моделирования окислительного стресса в клетках использовали трет-бутилгидроперекись (t-BHP) в конечной концентрации 1 мМ. Об изменении физико-химического состояния липидного бислоя мембран лимфоцитов человека судили по параметрам флуоресценции липофильных зондов (ТМА-ДФГ, лаурдан и пирен) встраиваемых в липидный бислой мембран клеток на различной глубине. Генерацию АФК определяли с помощью флуоресцентного зонда CM-H2DCFDA. О процессах перекисного окисления липидов (ПОЛ) в мембранах клеток судили по концентрации малонового диальдегида (МДА). Полученные результаты позволяют сделать вывод о том, что образованные на основе лизоцима амилоидные фибриллы вызывают модификацию липидного бислоя мембран лимфоцитов человека, проявляющуюся в изменении параметров флуоресценции липофильных зондов, встроенных в мембрану клеток, и процесса ПОЛ в ней. С другой стороны, амилоидные фибриллы при краткосрочном воздействии на лимфоциты не приводят к генерации АФК в них, но способны усиливать окислительный стресс, вызванный t-BHP. Таким образом, окислительный стресс, вызванный воздействием t-BHP, усиливается в присутствии амилоидных фибрилл, полученных из лизоцима.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The aim of this work is the investigation of the effect of amyloid fibrils on the physical and chemical state of the lipid bilayer of human lymphocytes membrane under the conditions of oxidative stress. Also, the process of reactive oxygen species (ROS) in human lymphocytes after amyloid fibril influence was studied. Tert-butyl hydroperoxide (t-TBH) in the final concentration 1 mM was used for oxidative stress modeling. Changes of lipid bilayer were studied using lipophilic fluorescent probes (TMA-DPH, laurdan, pyrene) which incorporated into the membrane lipid bilayer at different depths. ROS generation was measured with the help of the fluorescent probe CM-H2DCFDA. Process of lipid peroxidation (LP) in the cell membrane judged by the concentration of the malondialdehyde (MDA). Obtained results indicate that lysozyme based amyloid fibrils lead to the lipid bilayer modification which manifested as changes of fluorescent parameters of lipophilic probes incorporated into the cells membrane and process of LP. At the same time, short term exposure of amyloid fibrils does not stimulate ROS generation in the lymphocytes but intensify oxidative stress generated by t-TBH. Consequently, amyloid fibrils from lysozyme increase oxidative stress generated by t-TBH.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>амилоидные фибриллы</kwd>
    <kwd>лизоцим</kwd>
    <kwd>лимфоциты</kwd>
    <kwd>микровязкость липидного бислоя</kwd>
    <kwd>окислительный стресс</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>amyloid fibrils</kwd>
    <kwd>lysozyme</kwd>
    <kwd>lymphocytes</kwd>
    <kwd>microviscosity of lipid bilayer</kwd>
    <kwd>oxidative stress</kwd>
   </kwd-group>
  </article-meta>
 </front>
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