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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Head and Neck Tumors</journal-id><journal-title-group><journal-title xml:lang="en">Head and Neck Tumors</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли головы и шеи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2222-1468</issn><issn publication-format="electronic">2411-4634</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">888</article-id><article-id pub-id-type="doi">10.17650/2222-1468-2023-13-2-44-56</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">PD-L1 and p53 expression in squamous cell carcinoma of the oropharynx depending on human papilloma virus status</article-title><trans-title-group xml:lang="ru"><trans-title>Экспрессия pD-L1 и р53 при плоскоклеточной карциноме ротоглотки в зависимости от статуса вируса папилломы человека</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8128-2553</contrib-id><name-alternatives><name xml:lang="en"><surname>Polatova</surname><given-names>D. Sh.</given-names></name><name xml:lang="ru"><surname>Полатова</surname><given-names>Д. Ш.</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>383 Farobi St., Tashkent 100174</p><p>103 Makhtumkuli St., Tashkent 100047</p></bio><bio xml:lang="ru"><p>100174 Ташкент, ул. Фароби, 383</p><p>100047 Ташкент, ул. Махтумкули, 103</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0064-3746</contrib-id><name-alternatives><name xml:lang="en"><surname>Madaminov</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Мадаминов</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>Akhmad Yuldashevich Madaminov</p><p>103 Makhtumkuli St., Tashkent 100047</p></bio><bio xml:lang="ru"><p>Ахмад Юлдашевич Мадаминов</p><p>100047 Ташкент, ул. Махтумкули, 10</p></bio><email>akhmad.madaminov@inbox.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3416-5837</contrib-id><name-alternatives><name xml:lang="en"><surname>Savkin</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Савкин</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>103 Makhtumkuli St., Tashkent 100047</p></bio><bio xml:lang="ru"><p>100047 Ташкент, ул. Махтумкули, 10</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8026-9944</contrib-id><name-alternatives><name xml:lang="en"><surname>Nurzhabov</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Нуржабов</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>103 Makhtumkuli St., Tashkent 100047</p></bio><bio xml:lang="ru"><p>100047 Ташкент, ул. Махтумкули, 10</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5225-1539</contrib-id><name-alternatives><name xml:lang="en"><surname>Asamedinov</surname><given-names>N. K.</given-names></name><name xml:lang="ru"><surname>Асамединов</surname><given-names>Н. К.</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>103 Makhtumkuli St., Tashkent 100047</p></bio><bio xml:lang="ru"><p>100047 Ташкент, ул. Махтумкули, 10</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-4488-7270</contrib-id><name-alternatives><name xml:lang="en"><surname>Ibragimova</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Ибрагимова</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>103 Makhtumkuli St., Tashkent 100047</p></bio><bio xml:lang="ru"><p>100047 Ташкент, ул. Махтумкули, 10</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9191-4128</contrib-id><name-alternatives><name xml:lang="en"><surname>Davletov</surname><given-names>R. R.</given-names></name><name xml:lang="ru"><surname>Давлетов</surname><given-names>Р. Р.</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>383 Farobi St., Tashkent 100174</p></bio><bio xml:lang="ru"><p>100174 Ташкент, ул. Фароби, 383</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-1069-4645</contrib-id><name-alternatives><name xml:lang="en"><surname>Nasirov</surname><given-names>S. K.</given-names></name><name xml:lang="ru"><surname>Насиров</surname><given-names>С. К.</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>2 Farobiy St., Tashkent 100109</p></bio><bio xml:lang="ru"><p>100109 Ташкент, ул. Фаробий, 2</p></bio><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Republican Specialized Scientific and Practical Medical Center of Oncology and Radiology</institution></aff><aff><institution xml:lang="ru">Республиканский специализированный научно-практический медицинский центр онкологии и радиологии</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Tashkent State Dental Institute</institution></aff><aff><institution xml:lang="ru">Ташкентский государственный стоматологический институт</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Tashkent Medical Academy</institution></aff><aff><institution xml:lang="ru">Ташкентская медицинская академия</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-09-13" publication-format="electronic"><day>13</day><month>09</month><year>2023</year></pub-date><volume>13</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>44</fpage><lpage>56</lpage><history><date date-type="received" iso-8601-date="2023-09-13"><day>13</day><month>09</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-09-13"><day>13</day><month>09</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Polatova D.S., Madaminov A.Y., Savkin A.V., Nurzhabov A.I., Asamedinov N.K., Ibragimova D.A., Davletov R.R., Nasirov S.K.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Полатова Д.Ш., Мадаминов А.Ю., Савкин А.В., Нуржабов А.И., Асамединов Н.К., Ибрагимова Д.А., Давлетов Р.Р., Насиров С.К.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Polatova D.S., Madaminov A.Y., Savkin A.V., Nurzhabov A.I., Asamedinov N.K., Ibragimova D.A., Davletov R.R., Nasirov S.K.</copyright-holder><copyright-holder xml:lang="ru">Полатова Д.Ш., Мадаминов А.Ю., Савкин А.В., Нуржабов А.И., Асамединов Н.К., Ибрагимова Д.А., Давлетов Р.Р., Насиров С.К.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ogsh.abvpress.ru/jour/article/view/888">https://ogsh.abvpress.ru/jour/article/view/888</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> High-risk human papilloma virus (Hpv), especially genotype 16, causes oropharyngeal squamous cell carcinoma (OSCC). It is detected in about 70 % of tumors developing from lymphoid tissue of the tonsils or the base of the tongue. Due to the increased number of Hpv-positive OSCC, Hpv status is considered a marker of OSCC clinical outcome. Easy testing, low cost, reliability, and high sensitivity of immunohistochemical analysis for p16INk4a allowed to widely use this method for Hpv status determination.</p><p><bold>Aim.</bold> To determine the association between programmed death-ligand 1 (pD-L1) and p53 expression and presence of indirect Hpv marker – p16INk4a – in patients with OSCC.</p><p><bold>Materials and methods</bold>. The study included 76 patients with OSCC т1–4N0–3m0 who received treatment at the Republican Specialized Scientific and practical medical Center of Oncology and Radiology (n = 37) and its Tashkent branch (n = 39) between 2015 and 2020. for all selected patients, retrospective immunohistochemical analysis for the presence of p16INk4a, pD-L1 and р53 in  tumor  samples  fixed  with  formalin  in  paraffin  blocks  was  performed.  In  our  work,  immunohistochemical  examination for p16INk4a was the only relevant tool for Hpv status determination. To reinforce its prognostic significance, we used additional molecular markers pD-L1 and p53 which play an important role in carcinogenic transformation and OSCC progression.</p><p><bold>Results.</bold> The results of immunohistochemical analysis showed that p16INk4a overexpression was accompanied by positive pD-L1 reaction in 46 % (6/13) of cases; there were no cases of positive expression of mutant type p53. wild type p53 was identified in only 1 (3 %) case in combination with p16INk4a overexpression.</p><p><bold>Conclusion.</bold> The developed panel consisting of 3 molecular markers (p16INk4a, pD-L1 and р53) may open new horizons in accurate prognosis, risk stratification and understanding of OSCC molecular signature. This, in turn, will help clinicians in selection of individual therapy strategies for treatment de-escalation and outcome optimization.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Вирус папилломы человека (Впч) высокого риска, особенно 16-го генотипа, вызывает плоскоклеточную карциному ротоглотки (пККР). Он выявляется примерно в 70 % опухолей, возникающих из лимфоидной ткани небных миндалин или основания языка. В связи с ростом числа случаев Впч-положительной пККР Впч-статус стал рассматриваться как маркер клинического исхода пККР. простота выполнения, низкая стоимость, надежность и высокая чувствительность иммуногистохимического исследования, направленного на выявление p16INk4a, дали основание широко использовать этот метод для установления Впч-статуса.</p><p><bold>Цель исследования</bold> – определение зависимости экспрессии лиганда рецептора программируемой клеточной гибели 1 (pD-L1) и р53 от наличия непрямого маркера Впч – p16INk4a – у пациентов с пККР.</p><p><bold>Материалы и методы</bold>. В исследование вошли 76 пациентов с пККР т1–4N0–3m0, которые получали лечение в Республиканском специализированном научно-практическом медицинском центре онкологии и радиологии (n = 37) и его ташкентском городском филиале (n = 39) в период с 2015 по 2020 г. Всем ретроспективно отобранным пациентам проведен иммуногистохимический анализ на наличие p16INk4a, pD-L1 и р53 в образцах опухолевой ткани, фиксированных формалином и залитых в парафин. В нашей работе иммуногистохимическое исследование, направленное на выявление p16INk4a, было единственным релевантным инструментом при установлении Впч-статуса. Для укрепления его прогностической значимости мы использовали дополнительные молекулярные маркеры – pD-L1 и p53, которые играют большую роль в канцерогенной трансформации и дальнейшем прогрессировании пККР. Результаты.</p><p><bold>Результаты</bold> иммуногистохимического анализа показали, что сверхэкспрессия p16INk4a сопровождалась положительной реакцией pD-L1 в 46 % (6/13) случаев; ни в одном случае положительной экспрессии мутантного типа р53 не наблюдалось. Дикий тип р53 идентифицирован только в 1 (3 %) случае в сочетании со сверхэкспрессией p16INk4a.</p><p><bold>Заключение.</bold> созданная нами панель, состоящая из 3 молекулярных маркеров (p16INk4a, pD-L1 и р53), возможно, откроет новые горизонты в точном прогнозировании, стратификации риска и понимании молекулярной сигнатуры пККР. Это, в свою очередь, поможет клиницистам при выборе индивидуальных стратегий терапии, направленных на деэскалацию лечения и оптимизацию его результатов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>human papilloma virus</kwd><kwd>oropharyngeal squamous cell carcinoma</kwd><kwd>p16<sup>INk4a</sup></kwd><kwd>programmed death-ligand 1</kwd><kwd>р53</kwd><kwd>immunohistochemical analysis</kwd><kwd>protein expression</kwd><kwd>molecular marker</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вирус папилломы человека</kwd><kwd>плоскоклеточная карцинома ротоглотки</kwd><kwd>p16<sup>INk4a</sup></kwd><kwd>лиганд рецептора про- граммируемой клеточной гибели 1</kwd><kwd>р53</kwd><kwd>иммуногистохимическое исследование</kwd><kwd>экспрессия белка</kwd><kwd>молекулярный маркер</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>De Martel C., Georges D., Bray F. et al. 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