<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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">Russian Journal of Infection and Immunity</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Infection and Immunity</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфекция и иммунитет</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-7619</issn><issn publication-format="electronic">2313-7398</issn><publisher><publisher-name xml:lang="en">SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">446</article-id><article-id pub-id-type="doi">10.15789/2220-7619-2016-4-345-352</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">HUMAN PAPILLOMA VIRUS IMMUNOGEN CREATION ON THE BASE OF CHIMERIC RECOMBINANT PROTEIN L2E7</article-title><trans-title-group xml:lang="ru"><trans-title>СОЗДАНИЕ ИММУНОГЕНА ПРОТИВ ВИРУСА ПАПИЛЛОМЫ ЧЕЛОВЕКА НА ОСНОВЕ ХИМЕРНОГО РЕКОМБИНАНТНОГО БЕЛКА L2E7</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Malakhov</surname><given-names>I. S.</given-names></name><name xml:lang="ru"><surname>Малахов</surname><given-names>И. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Master (Biology), Engineer, Genetic Engineering Vaccine Laboratory</p></bio><bio xml:lang="ru"><p>магистр биологии, инженер 1 категории лаборатории генетической инженерии вакцин</p></bio><email>ipatyi.malakhov@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Al-Shehadat</surname><given-names>R. I.</given-names></name><name xml:lang="ru"><surname>Аль-Шехадат</surname><given-names>Р. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Biology), Deputy of Head of the Genetic Engineering Vaccine Laboratory</p></bio><bio xml:lang="ru"><p>к.б.н., зам. зав. лабораторией генетической инженерии вакцин </p></bio><email>ipatyi.malakhov@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Duckhovlinov</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Духовлинов</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Biology), Head of the Genetic Engineering Vaccine Laboratory, State Research Institute of Highly Pure Biopreparations</p></bio><bio xml:lang="ru"><p>к.б.н., зав. лабораторией генетической инженерии вакцин </p></bio><email>ipatyi.malakhov@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Simbirtsev</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Симбирцев</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>RAS Corresponding Member, PhD, MD (Biology), Professor, Director of State Research Institute of Highly Pure Biopreparations</p></bio><bio xml:lang="ru"><p>член-корреспондент РАН, д.б.н., профессор, директор </p></bio><email>ipatyi.malakhov@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Highly Pure Biopreparations, St. Petersburg, Russia</institution></aff><aff><institution xml:lang="ru">ФГУП Государственный  НИИ особо чистых биопрепаратов ФМБА России, Санкт-Петербург, Россия</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2016-12-06" publication-format="electronic"><day>06</day><month>12</month><year>2016</year></pub-date><volume>6</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>345</fpage><lpage>352</lpage><history><date date-type="received" iso-8601-date="2017-01-05"><day>05</day><month>01</month><year>2017</year></date><date date-type="accepted" iso-8601-date="2017-01-05"><day>05</day><month>01</month><year>2017</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2016, Malakhov I.S., Al-Shehadat R.I., Duckhovlinov I.V., Simbirtsev A.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2016, Малахов И.С., Аль-Шехадат Р.И., Духовлинов И.В., Симбирцев А.С.</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="en">Malakhov I.S., Al-Shehadat R.I., Duckhovlinov I.V., Simbirtsev A.S.</copyright-holder><copyright-holder xml:lang="ru">Малахов И.С., Аль-Шехадат Р.И., Духовлинов И.В., Симбирцев А.С.</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://iimmun.ru/iimm/article/view/446">https://iimmun.ru/iimm/article/view/446</self-uri><abstract xml:lang="en"><p>The cervical cancer is one of the most common diseases in world. This malignancy is the seventh highest prevalence oncological disease worldwide and the second highest prevalence oncological disease of women in the world. Meanwhile women need to be infected by human papilloma virus (HPV) is absolutely necessary for it further evolution, HPV DNA was found in 99.97% cases of disease. Except cervical cancer, HPV cause 85% of rectal cancer, 50% of the vulva, vagina and penis cancers, 20% of oropharyngeal cancer and 10% of larynx and esophagus cancers. In 2009, 14 000 women were diagnosed with cervical cancer in Russia. The growth in morbidity was 19% (in comparison with 1999). The most effective recognised measure for almost each infection prophylaxis is a vaccination. Two human papilloma virus vaccines are available in Russia nowadays — Gardasil and Cervarix, produced in Belgium and the Netherlands respectively. Cervarix is a bivalent vaccine based on virus-like particles (VLP) of two types. Recombinant major capsid proteins L1 HPV 16 and HPV 18 express in baculovirus expression system and self-assembled into virus-like particles (about 70 percent of cervical cancers are caused by HPV 16 and HPV 18). VLP of each strain produced in different baculovirus vectors and then combined in single drug. Gardasil is like Cervarix with few exceptions. Producing organisms are fungi S. cerevisiae in this case, and this vaccine contains low-risk HPV 6 and HPV 11 VLP. Thus, Gardasil is quadrivalent HPV-6/11/16/18 vaccine. These vaccines are very effective in averting infection of disease and don’t have significant side-effects, however they have some disadvantages. Firstly, they have a high price because of necessity of their expression in eukaryotic cells. Secondly, they are strain-specific, so vaccines are completely effective only for virus’s strains which are represented in the vaccine. Thirdly, it`s the absence of therapeutic (treatment of established infection) value of stated vaccines. According to information from literature, N-terminus of the L2 protein can induce non strain-specific neutralizing antibody that protects organism from papillomavirus challenge. E7 protein is a virus oncogene, its function is unlimited proliferation of infected cells that cause malignization in chronic course of disease. This protein is a very attractive target for therapeutic vaccines because of its necessity both for virus life cycle and sustenance of malignant phenotype in cancer cells. So, in this research the design of immunogen on the base of proteins HPV L2 and E7 is selected, vaccine on the base of which will avoid the disadvantages of Gardasil and Cervarix listed above. The stain-producer of protein on the base of cells E. coli was created. The protein was purified in denaturing reducing conditions by metal-affine chromatography and refold by sequential remove of urea and 2-mercaptoethanol.</p></abstract><trans-abstract xml:lang="ru"><p>Рак шейки матки является одним из наиболее распространенных видов новообразований, занимая 7 место в мире среди всех злокачественных опухолей, и вторым по распространенности онкологическим заболеванием у женщин. Необходимым условием развития рака шейки матки является наличие в клетке ДНК вируса папилломы человека (ВПЧ): ДНК ВПЧ найдено в 99,7% случаев заболевания. Помимо рака шейки матки, ДНК ВПЧ обнаружено в 85% случаев рака прямой кишки, 50% рака вульвы, вагины и пениса, 20% ротоглоточного рака и 10% гортани и рака пищевода. В России количество женщин, вновь заболевших раком шейки матки в 2009 г., составляет 14 000 человек. По сравнению с 1999 г. рост заболеваемости населения составил 19%. Наиболее эффективной мерой в профилактике практически любой инфекции признана вакцинация. В настоящее время в России доступны две вакцины (Церварикс и Гардасил) против вируса папилломы человека, производимые в Бельгии и Нидерландах соотвественно. Церварикс представляет собой бивалентную вакцину, состоящую из вирусоподобных частиц, образуемых при самосборке капсидного вирусного белка L1 ВПЧ типа 16 и 18 (онкогенные штаммы вируса, найденные примерно у 70% больных раком шейки матки). В этом препарате белок L1 ВПЧ экспрессируется в рекомбинантном бакуловирусном векторе; вируспоподобные частицы каждого вирусного штамма производятся отдельно и затем объединяются в один препарат. Гардасил аналогичен Цервариксу, однако в качестве продуцентов используются дрожжи S. cerevisiae, и в препарат добавлены вирусоподобные частицы вирусов папилломы человека неонкогенных типов 6 и 11. Таким образом Гардасил является квадривалентной ВПЧ-6/11/16/18 вакциной. Эти вакцины весьма эффективны в предотвращении инфицирования вирусом и не имеют значимых побочных эффектов, однако они обладают и рядом минусов. В первую очередь это высокая стоимость из-за необходимости их экспрессии в эукариотических клетках. Во-вторых, это их штаммоспецифичность, из-за которой вакцины полностью эффективны только против штаммов вируса, представленных в вакцине. В-третьих, это отсутствие терапевтической (лечение уже установившейся инфекции) ценности данных вакцин. В литературе показано, что N-конец вирусного белка L2 способен генерировать нештаммоспецифичные нейтрализующие антитела, блокирующие проникновение вируса в клетку. Белок Е7 является вирусным онкогеном, отвечающим за неконтролируемую пролиферацию зараженных клеток, что в хронических случаях приводит к опухолевой трансформации. Этот белок по причине своей незаменимости, как для жизненного цикла вируса, так и для поддержания опухолевого фенотипа раковых клеток, является привлекательной целью терапевтической вакцины. Таким образом, недостатков Гардасила и Церварикса была бы лишена вакцина на основе белков L2 и E7 вируса папилломы человека. Создан штамм-продуцент белка на основе клеток E. coli, белок очищен в восстановительных денатурирующих условиях металлоаффинной хроматографией и рефолдирован путем последовательного удаления мочевины и меркаптоэтанола.</p></trans-abstract><kwd-group xml:lang="en"><kwd>HPV vaccine</kwd><kwd>papilloma</kwd><kwd>human papillomavirus</kwd><kwd>L2 protein</kwd><kwd>E7 protein</kwd><kwd>folding</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вакцина ВПЧ</kwd><kwd>папиллома</kwd><kwd>вирус папилломы человека</kwd><kwd>белок L2</kwd><kwd>белок E7</kwd><kwd>фолдинг</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1.Ярилин А.А. Иммунология. ГЭОТАР Медиа, 2010. 752 с. [Yarilin A.A. Immunologiya [Immunology]. Мoscow: GEOTAR-Media, 2010, 752 p.]</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>2.Anfinsen C.B., Haber E., Sela M., White F.H. The kinetics of formation of native ribonuclease during oxidation of the reduced polypeptide chain. Proc. Natl. Acad. Sci. USA, 1961, vol. 47, no. 9, p. 1309. doi: 10.1073/pnas.47.9.1309</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>3.Baseman J.G., Koutsky L.A. The epidemiology of human papillomavirus infections. J. Clin. Virol., 2005, vol. 32, pp. 16–24. doi: 10.1016/j.jcv.2004.12.008</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>4.Bosch F.X., De Sanjosé S. Human papillomavirus and cervical cancer — burden and assessment of causality. J. Natl. Cancer Inst., 2003, vol. 2003, no. 31, pp. 3–13. doi: 10.1093/oxfordjournals.jncimonographs.a003479</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>5.Bzhalava D., Eklund C., Dillner J. International standardization and classification of human papillomavirus types. Virology, 2015, vol. 476, pp. 341–344. doi: 10.1016/j.virol.2014.12.028</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>6.Campo M.S., Grindlay G.J., O’Neil B.W., Chandrachud L.M., McGarvie G.M., Jarrett W.F. Prophylactic and therapeutic vaccination against a mucosal papillomavirus. J. Gen. Virol., 1993, vol. 74, pp. 945–953. doi: 10.1099/0022-1317-74-6-945</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>7.Campos S.K., Ozbun M.A. Two highly conserved cysteine residues in HPV16 L2 form an intramolecular disulfide bond and are critical for infectivity in human keratinocytes. PLoS One, 2009, vol. 4, no. 2, e4463. doi: 10.1371/journal.pone.0004463</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>8.Christensen N.D., Cladel N.M., Reed C.A., Budgeon L.R., Embers M.E., Skulsky D.M., McClements W.L., Ludmerer S.W., Jansen K.U. Hybrid papillomavirus L1 molecules assemble into virus-like particles that reconstitute conformational epitopes and induce neutralizing antibodies to distinct HPV types. Virology, 2001, vol. 291, no. 2, pp. 324–334. doi: 10.1006/viro.2001.1220</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>9.Creighton T.E. Kinetic study of protein unfolding and refolding using urea gradient electrophoresis. J. Mol. Biol., 1980, vol. 137, no. 1. pp. 61–80. doi: 10.1016/0022-2836(80)90157-6</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>10.Daayana S., Elkord E., Winters U., Pawlita M., Roden R., Stern P.L., Kitchener H.C. Phase II trial of imiquimod and HPV therapeutic vaccination in patients with vulval intraepithelial neoplasia. Br. J. Cancer, 2010, vol. 102, no. 7, pp. 1129–1136. doi: 10.1038/ sj.bjc.6605611</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>11.Demurtas O.C., Massa S., Ferrante P., Venuti A., Franconi R., Giuliano G.A. Chlamydomonas-derived Human Papillomavirus 16 E7 vaccine induces specific tumor protection. PLoS One, 2013, vol. 8, no. 4, pp. E61473. doi: 10.1371/journal.pone.0061473</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>12.Fang-Cheng Z., Gang C., Jie W., Su-Feng J., Yun-Shui J., Men G., Jian-Buo L., Li Z., Zian M., Houwen T. Evaluation of pre-clinical efficacy to HPV16 L2E6E7 vaccine and HPV16 E6E7 adenovirus-5 vector vaccine with different dosages and prime-booster regiments in mouse model. J. Vaccines Vaccin., 2013, vol. 4, pp. 1–4. doi: 10.4172/2157-7560.1000189</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>13.Frazer I.H. Prevention of cervical cancer through papillomavirus vaccination. Nat. Rev. Immunol., 2004, vol. 4, no. 1, pp. 46–55. doi: 10.1038/nri1260</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>14.Gambhira R., Karanam B., Jagu S., Roberts J.N., Buck C.B., Bossis I., Alphs H., Culp T., Neil D., Christensen N.D., Roden R.B. A protective and broadly cross-neutralizing epitope of human papillomavirus L2. J. Virol., 2007, vol. 81, no. 24, pp. 13927–13931. doi: 10.1128/JVI.00936-07</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>15.Gambhira R., Jagu S., Karanam B., Gravitt P.E., Culp T.D., Christensen N.D., Roden R.B. Protection of rabbits against challenge with rabbit papillomaviruses by immunization with the N terminus of human papillomavirus type 16 minor capsid antigen L2. J. Virol., 2007, vol. 81, no. 21, pp. 11585–11592. doi: 10.1128/JVI.01577-07</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>16.Govan V.A. A novel vaccine for cervical cancer: quadrivalent human papillomavirus (types 6, 11, 16 and 18) recombinant vaccine (Gardasil®). Ther. Clin. Risk Manag., 2008, vol. 4, no. 1, p. 65. doi: 10.2147/TCRM.S856</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>17.Heck D.V., Yee C.L., Howley P.M., Münger K. Efficiency of binding the retinoblastoma protein correlates with the transforming capacity of the E7 oncoproteins of the human papillomaviruses. Proc. Natl. Acad. Sci. USA, 1992, vol. 89, no. 10, pp. 4442–4446. doi: 10.1073/pnas.89.10.4442</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>18.International Agency for Research on Cancer, IARC Working group on the evaluation of carcinogenic risks to humans. IARC monographs on the evaluation of carcinogenic risks to humans. IARC, 2012, vol. 100B. doi: 10.1016/s0378-8741(03)00216-2</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>19.Invitrogen. Ni-NTA purification system. User manual. Catalog nos. K950-01, K951-01, K952-01, K953-01, K954-01, R901-01, R901-10, R 901-15. Version C. 25-0496, 2006, 32 p.</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>20.Jagu S., Karanam B., Gambhira R., Chivukula S.V., Chaganti R.J., Lowy D.R., Schiller J.T., Roden R.B. Concatenated multi-type L2 fusion proteins as candidate prophylactic panhuman papillomavirus vaccines. J. Natl. Cancer Inst., 2009, vol. 101, no. 11, pp. 782–792. doi: 10.1093/jnci/djp106</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>21.Jagu S., Kwak K., Karanam B., Huh W. K., Damotharan V., Chivukula S.V., Roden R.B. Optimization of multimeric human papillomavirus L2 vaccines. PLoS One, 2013, vol. 8, no. 1, e55538. doi: 10.1371/journal.pone.0055538</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>22.Jagu S., Kwak K., Garcea R.L., Roden R.B. Vaccination with multimeric L2 fusion protein and L1 VLP or capsomeres to broaden protection against HPV infection. Vaccine, 2010, vol. 28, no. 28, pp. 4478–4486. doi: 10.1016/j.vaccine.2010.04.039</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>23.Jarrett W.F., O’Neil B.W., Gaukroger J.M., Smith K.T., Laird H.M., Campo M.S. Studies on vaccination against papillomaviruses: the immunity after infection and vaccination with bovine papillomaviruses of different types. Vet. Rec., 1990, vol. 126, no. 19, pp. 473–475. doi: 10.1136/vr.126.19.473</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>24.Kalnin K., Tibbitts T., Yan Y., Stegalkina S., Shen L., Costa V., Sabharwal R., Anderson S.F., Day P.M., Christensen N., Schiller J.T., Jagu S., Roden R.B., Almond J., Kleanthous H. Low doses of flagellin-L2 multimer vaccines protect against challenge with diverse papillomavirus genotypes. Vaccine, 2014, vol. 32, no. 28, pp. 3540–3547. doi: 10.1016/j.vaccine.2014.04.032</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>25.Karanam B., Gambhira R., Peng S., Jagu S., Kim D.J., Ketner G.W., Stern P.L., Adams R.J., Roden R.B. Vaccination with HPV16 L2E6E7 fusion protein in GPI-0100 adjuvant elicits protective humoral and cell-mediated immunity. Vaccine, 2009, vol. 27, no. 7, pp. 1040–1049. doi: 10.1016/j.vaccine.2008.11.099</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>26.Kawana K., Adachi K., Kojima S., Taguchi A., Tomio K., Yamashita A., Nishida H., Nagasaka K., Arimoto T., Yokoyama T., Wada-Hiraike O., Oda K., Sewaki T., Osuga Y., Fujii, T. Oral vaccination against HPV E7 for treatment of cervical intraepithelial neoplasia grade 3 (CIN3) elicits E7-specific mucosal immunity in the cervix of CIN3 patients. Vaccine, 2014, vol. 32, no. 47, pp. 6233–6239. doi: 10.1016/j.vaccine.2014.09.020</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>27.Laemmli U.K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature, 1970, vol. 227, pp. 680–685. doi: 10.1016/0022-2836(73)90198-8</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>28.Malagón T., Drolet M., Boily M.C., Franco E. L., Jit M., Brisson J., Brisson M. Cross-protective efficacy of two human papillomavirus vaccines: a systematic review and meta-analysis. Lancet Infect. Dis., 2012, vol. 12, no. 10, pp. 781–789. doi: 10.1016/ S1473-3099(12)70187-1</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>29.Monie A., Hung C.F., Roden R., Wu T.C. Cervarix™: a vaccine for the prevention of HPV 16, 18-associated cervical cancer. Biologics., 2008, vol. 2, no. 1, pp. 107. doi: 10.2147/BTT.S1877</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>30.Ohlenschläger O., Seiboth T., Zengerling H., Briese L., Marchanka A., Ramachandran R., Baum M., Korbas M., Meyer-Klaucke W., Dürst M., Görlach M. Solution structure of the partially folded high-risk human papilloma virus 45 oncoprotein E7. Oncogene, 2006, vol. 25, no. 44, pp. 5953–5959. doi: 10.1038/sj.onc.1209584</mixed-citation></ref><ref id="B31"><label>31.</label><mixed-citation>31.Pastrana D.V., Buck C.B., Pang Y.S., Thompson C.D., Castle P.E., Fitzgerald P.C., Kjaerd S.K., Lowyand D.R., Schiller J.T. Reactivity of human sera in a sensitive, high-throughput pseudovirus-based papillomavirus neutralization assay for HPV16 and HPV18. Virology, 2004, vol. 321, no. 2, pp. 205–216. doi: 10.1016/j.virol.2003.12.027</mixed-citation></ref><ref id="B32"><label>32.</label><mixed-citation>32.QIAGEN. Compatibility of reagents with Ni-NTA. QIAGEN, 2006.</mixed-citation></ref><ref id="B33"><label>33.</label><mixed-citation>33.Roden R.B., Yutzy W.H., Fallon R., Inglis S., Lowy D.R., Schiller J.T. Minor capsid protein of human genital papillomaviruses contains subdominant, cross-neutralizing epitopes. Virology, 2000, vol. 270, no. 2, pp. 254–257. doi: 10.1006/viro.2000.0272</mixed-citation></ref><ref id="B34"><label>34.</label><mixed-citation>34.Rogovskaya S.I., Shabalova I.P., Mikheeva I.V., Minkina G.N., Podzolkova N.M., Shipulina O.Y., Sultanov S.N., Kosenko I.A., Brotons M., Buttmann N., Dartell M., Arbyn M., Syrjänen S., Poljak M. Human papillomavirus prevalence and type-distribution, cervical cancer screening practices and current status of vaccination implementation in Russian Federation, the Western Countries of the former Soviet Union, Caucasus Region and Central Asia. Vaccine, 2013, vol. 31, pp. H46–H58. doi: 10.1016/j.vaccine.2013.06.043</mixed-citation></ref><ref id="B35"><label>35.</label><mixed-citation>35.Roy A., Kucukural A., Zhang Y. I-TASSER: a unified platform for automated protein structure and function prediction. Nat. Protoc., 2010, vol. 5, no. 4, pp. 725–738. doi: 10.1038/nprot.2010.5</mixed-citation></ref><ref id="B36"><label>36.</label><mixed-citation>36.Schiller J.T., Castellsagué X., Villa L.L., Hildesheim A. An update of prophylactic human papillomavirus L1 virus-like particle vaccine clinical trial results. Vaccine, 2008, vol. 26, pp. K53–K61. doi: 10.1016/j.vaccine.2008.06.002</mixed-citation></ref><ref id="B37"><label>37.</label><mixed-citation>37.Studier F.W. Protein production by auto-induction in high density shaking cultures. Protein Expr. Purif., 2005, vol. 41, no. 1, pp. 207–234. doi: 10.1016/j.pep.2005.01.016</mixed-citation></ref><ref id="B38"><label>38.</label><mixed-citation>38.Thompson H.S.G., Davies M.L., Watts M.J., Mann A.E., Holding F.P., O’Neill T., Beech J.T., Thompson S.J., Leesman G.D., Ulrich J.T. Enhanced immunogenicity of a recombinant genital warts vaccine adjuvanted with monophosphoryl lipid A. Vaccine, 1998, vol. 16, no. 20, pp. 1993–1999. doi: 10.1016/S0264-410X(98)00088-7</mixed-citation></ref><ref id="B39"><label>39.</label><mixed-citation>39.Tsumoto K., Ejima D., Kumagai I., Arakawa T. Practical considerations in refolding proteins from inclusion bodies. Protein Expr. Purif., 2003, vol. 28, no. 1, pp. 1–8. doi: 10.1016/S1046-5928(02)00641-1</mixed-citation></ref><ref id="B40"><label>40.</label><mixed-citation>40.Van Doorslaer K., Reimers L.L., Studentsov Y.Y., Einstein M.H., Burk R.D. Serological response to an HPV16 E7 based therapeutic vaccine in women with high-grade cervical dysplasia. Gynecol. Oncol., 2010, vol. 116, no. 2, pp. 208–212. doi: 10.1016/j.ygyno.2009.05.044</mixed-citation></ref><ref id="B41"><label>41.</label><mixed-citation>41.Wick D.A., Webb J.R. A novel, broad spectrum therapeutic HPV vaccine targeting the E7 proteins of HPV16, 18, 31, 45 and 52 that elicits potent E7-specific CD8T cell immunity and regression of large, established, E7-expressing TC-1 tumors. Vaccine, 2011, vol. 29, no. 44, pp. 7857–7866. doi: 10.1016/j.vaccine.2011.07.090</mixed-citation></ref><ref id="B42"><label>42.</label><mixed-citation>42.Xiong A.S., Yao Q.H., Peng R.H., Li X., Fan H.Q., Cheng Z.M., Li Y. A simple, rapid, high-fidelity and cost-effective PCR-based two-step DNA synthesis method for long gene sequences. Nucleic Acids Res., 2004, vol. 32, no. 12, pp. e98–e98. doi: 10.1093/nar/ gnh094</mixed-citation></ref><ref id="B43"><label>43.</label><mixed-citation>43.Yang J., Yan R., Roy A., Xu D., Poisson J., Zhang Y. The I-TASSER Suite: protein structure and function prediction. Nat. Methods, 2015, vol. 12, no. 1, pp. 7–8. doi: 10.1038/nmeth.3213</mixed-citation></ref><ref id="B44"><label>44.</label><mixed-citation>44.Zhang Y. I-TASSER server for protein 3D structure prediction. BMC bioinformatics, 2008, vol. 9, no. 1, p. 40. doi: 10.1186/1471-2105-9-40</mixed-citation></ref></ref-list></back></article>
