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ÀڱðæºÎ¾Ï ȯÀÚ¿¡¼­ ÀÎÀ¯µÎÁ¾ ¹ÙÀÌ·¯½ºÀÇ À¶ÇÕ°ú HPV ´Ü¹éÁú¿¡ ´ëÇÑ Ç×ü ¹ÝÀÀ Integration of HPV and the Antibody Response to HPV Proteins in Patients with Cervical Cancer

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Abstract

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ÀÎÀ¯µÎÁ¾ ¹ÙÀÌ·¯½º(human papillomavirus, HPV) °¨¿°ÀÌ ÁÖµÈ ¹ß»ý ¿øÀÎÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Â
ÀÚ±Ã°æ ºÎ¾ÏÀº Çѱ¹ ¿©¼º¿¡¼­ Á¦ÀÏ ÈçÇÑ ¾ÏÀ̸ç, Àڱà °æºÎ¾ÏÀÇ 90% À̻󿡼­ HPV DNA
°¡ ¹ß°ßµÇ°í ÀÖ´Ù. ÀÌ Áß HPV-16Àº ȯÀÚÀÇ 60% À̻󿡼­ ¹ß°ßµÇ´Â °¡Àå ÈçÇÑ ¾ÆÇüÀÌ´Ù.
ÀڱðæºÎ¾Ï¹ß»ý°ú HPV¿ÍÀÇ °ü°è´Â ¸¹Àº ÇÐÀڵ鿡 ÀÇÇØ ¿¬±¸µÇ¾î, HPV-16°ú HPV-18Àº ÀÚ
±Ã°æºÎ¾ÏÀ» À¯¹ß½Ãų ¼ö ÀÖ´Â »ýÈ­ÇÐÀû Ư¼ºÀ» °®°í ÀÖ´Â °íÀ§Ç豺 ¹ÙÀÌ·¯½ºÀ̸ç, ÀÌ´Â ¹Ù
ÀÌ·¯½ºÀÇ Æ¯Á¤ ºÎºÐÀÎ E6, E7 ´Ü¹éÁúÀÌ Á¾¾ç¾ïÁ¦ÀÎÀÚ¸¦ ºÒÈ°¼ºÈ­½ÃŲ °á°ú·Î ¾ÏÈ­ º¯ÇüÀÌ
ÀϾ±â ¶§¹®À̶óÇÑ´Ù. ÀϹÝÀûÀ¸·Î ÀڱðæºÎ¾ÏÀÇ Ãʱâ Àü±¸ º´¼Ò¿¡¼­´Â HPV-16 DNA°¡
ºÎüÇü(episomal state)À¸·Î Á¸Àç Çϳª ÁøÇàµÈ »óÇÇÀÌÇüÁõÀ̳ª ħÀ±¾Ï¿¡¼­´Â ¹ÙÀÌ·¯½º À¯Àü
ÀÚ°¡ »óÇǼ¼Æ÷ÀÇ ¿°»öü¿¡ À¶ÇÕµÈ »óÅ·ΠÈçÈ÷ Á¸ÀçÇÏ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ°í, HPV DNA
Áß¿¡¼­ ÁÖ·Î À¶ÇյǴ °÷Àº ¹ß¾Ï À¯ÀüÀÚÀÎ E6, E7ÀÇ ¹ßÇöÀ» Á¶ÀýÇÏ´Â E2 DNAÀÇ ºÎºÐÀÌ´Ù.
À¶ÇÕ¿¡ ÀÇÇÑ E2 DNAÀÇ ºÎºÐÀû ¼Ò½ÇÀº E6, E7 À¯ÀüÀÚÀÇ Àü»ç (transcription)¸¦ È°¼ºÈ­½ÃÅ°
¸ç À̵éÀº p53, pRbµîÀÇ ¾Ï ¾ïÁ¦À¯ÀüÀÚ¸¦ ºÒÈ°¼ºÈ­ ½ÃÅ°¹Ç·Î ¾ÏÈ­°¡ ÃËÁøµÈ´Ù°í ÇÑ´Ù.
ÃÖ±Ù °¢±â ±â´ÉÀÌ ´Ù¸¥ HPV ´Ü¹éÁúµéÀ» Áö¹èÇÏ´Â À¯ÀüÀÚ°¡ ¹àÇôÁö¸é¼­ HPVÀÇ ¾î´À ºÎ
À§°¡ ¸é¿ª¿ø¼ºÀ» °®´ÂÁö ºÐ¼®ÇÒ ¼ö ÀÖ°Ô µÇ¾ú´Ù. HPVÀÇ ¿Ü¸· ´Ü¹éÁú¸¸À» Çü¼º½ÃŲ
virus-like particle(VLP)°ú ½ÃÇè°ü³»¿¡¼­ ÇÕ¼ºÇÑ HPV ´Ü¹éÁú(in vitro transcripted and
translated HPV protein)¿¡ ´ëÇÑ ÁßÈ­ Ç×ü Çü¼º ´É·ÂÀº ±âÁ¸ÀÇ HPV Ç׿ø¹°Áúº¸´Ù ¿ì¼öÇÑ
°ÍÀ¸·Î ¹àÇôÁ³°í, HPV-16 L1/L2 VLP¿Í E6, E7 ´Ü¹éÁú¿¡ ´ëÇØ Çü¼ºµÈ Ç×ü°¡ÀÇ ÃøÁ¤Àº ÀÚ
±Ã °æºÎ¾ÏÀÇ Áø´Ü ¹× Á¾¾ç Ç¥Áö¹°Áú·Î¼­ ÀÓ»óÀûÀÎ °¡Ä¡°¡ ÀÖ´Ù°í ÇÑ´Ù.
ÀÌ¿¡ ÀúÀÚµéÀº ÀڱðæºÎ¾ÏÀÇ ÀÓ»óÀû Áø´Ü ¹× ¿¹ÈÄ ÆÇ´Ü¿¡ µµ¿òÀ» ¹ÞÀ¸¸é¼­, ¶ÇÇÑ HPV-16
E6, E7 ´Ü¹éÁú°ú HPV-16 L1/L2 VLP°¡ HPV ¹é½ÅÀ¸·Î »ç¿ë°¡´ÉÇÑÁö¸¦ º¸±â À§ÇÏ¿© ÀÚ±Ã
°æºÎ¾Ï ȯÀÚµéÀ» º´±âº°·Î ºÐ·ùÇÏ¿© HPV-16 DNAÀÇ À¶ÇÕ¿©ºÎ, HPV-16 E6, E7 À¯ÀüÀÚÀÇ
¹ßÇöÀ¯¹« ¹× HPV-16 L1/L2 VLP¿Í E6, E7 ´Ü¹éÁú¿¡ ´ëÇØ Çü¼ºµÈ Ç×ü¸¦ Á¶»çÇÏ¿´´Ù.

Purpose : HPV (human papillomavirus) are known as the major causative agent for
development of cervical cancer. High-risk HPVs, especially HPV-16 /18 DNA, are often
found to be integrated into the human genome in high grade CINs as well as cervial
cancer. Investigation of the relationship between the genomic states of HPV genes and
their antibody response against the HPV-16 L1/L2 virus-like particles (VLPs) and the in
vitro translated E6 and E7 proteins may help to explain the mechanism of HPV-related
cervical carcinogenesis and host immune responses.
Materials and Methods : Cervical cancer tissues obtained from 41 patients with cervical
cancer were studied by PCR, Southern blot hybridization and the antibody response
against HPV-16 L1/L2 VLPs and HPV-16 E6, E7 proteins of serum were tested by
ELISA and radioimmunoprecipitation assay (RIPA), respectively.
Results : Integrated forms of the HPV-16 DNA were found in 23 of the 38 patients
(60.5%). The HPV-16 positive cervial cancer patients had a significantly higher
prevalence (39.5%; 15/38) of antibodies to HPV-16 L1/L2 VLPs than 8.7% (2/28) of the
the control group (P<0.05). Antibodies to HPV-16 L1/L2 VLPs were more detectable in
60% (9/15) of the cervical cancer patients with episomal forms of HPV-16 DNA than
those who having only integrated HPV-16 (26.1%; 6/23) (P<0.05). Antibodies to E6 and
E7 proteins were positive in 36.8% (14/38) and 50% (19/38) of the patients with HPV-16
positive cervical cancer. And those were significantly higher than the positivities for the
control group (8.3% and 2.8%), (P<0.05). The difference between seroreactivities to E6
and E7 proteins in the patients with episomal forms of HPV-16 DNA (pure episomal
and mixed forms) and those with integrated forms of HPV-16 DNA was not significant
(P > 0.05).
Conclusion : Integrated forms of HPV-16 DNA were prevalent in most patients with
cervical cancer. Antibodies to HPV-16 L1/L2 VLPs, in vitro translated HPV-16 E6 and
E7 proteins appeared in the significantly larger proportions of the HPV-associated
cervical cancer patients than in the controls. Antibodies to HPV-16 L1/L2 VLPs were
more detectable in the cervical cancer patients with episomal form of HPV-16 DNA
than those who having only integrated forms of HPV-16. Antibody responses to
HPV-16 E6 and E7 proteins were not influenced by the different viral states. More
numbers of studies would be necessary to determine the relationship between the
genomic states of HPV and the immune responses to their proteins by the such
genomic and serologic parameters.

Human papillomavirus; Cervical cancer; Integration; HPV-16 L1/L2 VLPs; Radioimmunoprecipitation assay;

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