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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">55168</article-id>
   <article-id pub-id-type="doi">10.29039/rusjbpc.2022.0562</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Моделирование в биофизике</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Modelling in biophycis</subject>
    </subj-group>
    <subj-group>
     <subject>Моделирование в биофизике</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">A STUDY OF THE POSSIBILITY OF DETECTING DIFFERENCES IN DYNAMICS OF TUMOR GROWTH BY CLUSTERING USING k-MEANS ALGORITHM</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИССЛЕДОВАНИЕ ВОЗМОЖНОСТИ ВЫЯВЛЕНИЯ РАЗЛИЧИЙ В РАЗВИТИИ ОПУХОЛЕВОГО ПРОЦЕССА ПУТЕМ КЛАСТЕРИЗАЦИИ С ИСПОЛЬЗОВАНИЕМ АЛГОРИТМА kMEANS</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Марнаутов</surname>
       <given-names>Н. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Marnautov</surname>
       <given-names>N. A.</given-names>
      </name>
     </name-alternatives>
     <email>nmarnautov@gmail.com</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Елфимов</surname>
       <given-names>А. Б.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Elfimov</surname>
       <given-names>A. B.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Комиссарова</surname>
       <given-names>Л. Х.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Komissarova</surname>
       <given-names>L. Kh.</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 биохимической физики им. Н.М. Эмануэля РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics of the Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics of the Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-11-24T11:58:29+03:00">
    <day>24</day>
    <month>11</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-11-24T11:58:29+03:00">
    <day>24</day>
    <month>11</month>
    <year>2022</year>
   </pub-date>
   <volume>7</volume>
   <issue>4</issue>
   <fpage>570</fpage>
   <lpage>573</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-07-25T00:00:00+03:00">
     <day>25</day>
     <month>07</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/55168/view">https://rusjbpc.ru/en/nauka/article/55168/view</self-uri>
   <abstract xml:lang="ru">
    <p>В работе исследована возможность кластеризации мышей на основе динамики развития опухолевого процесса. Исследование проводили на мышах линии C57Bl/6, с перевитой карциномой Льюис. Контрольной группе (группа №1) введение препаратов не осуществляли. Опытным группам проводили химиотерапию с использованием рубомицина (группа №2) / магнитолипосомального рубомицина (группы №3 - №4). Группу №4 дополнительно подвергали воздействию внешнего магнитного поля на область опухоли в течение 1 часа после введения препарата. Введение препаратов осуществляли на 10, 14, 18 сутки после перевивки опухоли. Достоверность различий между группами определяли с использованием U-критерия Манна-Уитни. Кластеризацию полученных данных осуществляли с использованием алгоритма k-средних (kMeans). Было обнаружено, что при кластеризации уверенно выделяется кластер мышей, не получавших химиотерапию. Так же было обнаружено, что при кластеризации на три кластера, большая часть мышей из групп №3 и №4 были отнесены к одному кластеру, не смотря на то, что на 21 сутки после перевивки опухоли между данными группами наблюдаются статистически достоверные различия (p &lt;0.05).</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The paper investigates the possibility of clustering mice based on the dynamics of the development of the tumor process. The study was carried out on mice of the C57Bl/6 line, with an intertwined Lewis carcinoma. The control group (group No. 1) was not administered drugs. The experimental groups were treated with chemotherapy using rubomycin (group No. 2) / magnetoliposomal rubomycin (groups No. 3 - No. 4). Group No. 4 was additionally exposed to an external magnetic field on the tumor area for 1 hour after administration of the drug. The drugs were administered on the 10th, 14th, 18th day after the tumor was transplanted. The reliability of the differences between the groups was determined using the Mann-Whitney U-test. Clustering of the obtained data was carried out using the k-means algorithm (kMeans). It was found that clustering confidently distinguishes a cluster of mice that have not received chemotherapy. It was also found that when clustering into three clusters, most of the mice from groups No. 3 and No. 4 were assigned to the same cluster, despite the fact that statistically significant differences were observed between these groups on the 21st day after tumor transplantation (p &lt;0.05).</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>кластеризация</kwd>
    <kwd>k-means</kwd>
    <kwd>метод k-средних</kwd>
    <kwd>метод главных компонент</kwd>
    <kwd>PCA</kwd>
    <kwd>магнитные липосомы</kwd>
    <kwd>наночастицы магнетита</kwd>
    <kwd>магнитоуправляемые носители</kwd>
    <kwd>направленная доставка</kwd>
    <kwd>химиотерапия</kwd>
    <kwd>рубомицин</kwd>
    <kwd>карцинома Льюис</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>clustering</kwd>
    <kwd>k-means</kwd>
    <kwd>k-means method</kwd>
    <kwd>principal component analysis</kwd>
    <kwd>PCA</kwd>
    <kwd>magnetic liposomes</kwd>
    <kwd>magnetite nanoparticles</kwd>
    <kwd>magnetically controlled carriers</kwd>
    <kwd>targeted delivery</kwd>
    <kwd>chemotherapy</kwd>
    <kwd>rubomycin</kwd>
    <kwd>Lewis carcinoma</kwd>
   </kwd-group>
  </article-meta>
 </front>
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