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DETECT10N OF HUMAN PAPILLOMAVIRUS AND OVEREXPRESS1ON OF p53 IN SQUAMOUS CELL CARCINOMAS OF ORAL CAVITY

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Abstract

±¸°­¾ÏÀÇ ¹ß¾Ï°úÁ¤¿¡ ÀÎü À¯µÎÁ¾ ¹ÙÀÌ·¯½º(human papillomavirus, HPV)ÀÇ °¨¿°°ú p53ÀÇ
°ú¹ßÇöÀÇ ¿ªÇÒÀ» ±¸¸íÇÏ°íÀÚ ÀúÀÚ´Â 1992³âºÎÅÍ 1996³â 6¿ù±îÁö ÇѾç´ëÇб³º´¿ø Á¶Á÷º´¸®°ú
¿¡¼­ ±¸°­¾ÏÀ¸·Î Áø´ÜµÈ 31¿¹ÀÇ »ý°Ë Ç¥º»À» ÀÌ¿ëÇÏ¿©, HPVÀÇ °¨¿°ºóµµ¿Í °íÀ§Ç豺ÀÎ
HPV-16, -18, ¹× -33 ¾ÆÇüÀÇ °¨¿°ºóµµ¸¦ ÁßÇÕÈ¿¼Ò ¿¬¼â¹ÝÀÀÀ» ÀÌ¿ëÇÏ¿© °Ë»öÇÏ¿´°í, p53
°ú¹ßÇöÀº ¸é¿ªÁ¶Á÷È­ÇÐÀû ¿°»öÀ¸·Î ÆÇÁ¤ÇÏ¿´´Ù. HPV °¨¿°°ú ÀÓ»ó º´±â ¹× º´¸®Á¶Á÷ÇÐÀû ºÐ
È­µµ »çÀÌÀÇ ¿¬°ü¼º°ú HPV °¨¿°°ú p53ÀÇ °ú¹ßÇö »çÀÌÀÇ ¿¬°ü¼ºÀ» Á¶»çÇÏ¿´´ø¹Ù ´ÙÀ½°ú °°
Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. ±¸°­ÀÇ ÆíÆò¼¼Æ÷ ¾ÏÁ¾ 31¿¹ Áß 21¿¹(67.7%)¿¡¼­ HPV-DNA°¡ °ËÃâµÇ¾úÀ¸¸ç, 16¿¹°¡
HPV-16¿¡, 4¿¹°¡ HPV-18¿¡, 2¿¹°¡ HPV-33ÀÇ ¾ÆÇü¿¡¼­ °¢°¢ °ËÃâµÇ¾ú´Ù. À̵é Áß
HPV-16°ú -18, ±×¸®°í HPV-16°ú -33 ¾ÆÇüÀÌ µ¿½Ã¿¡ ¾ç¼ºÀÎ ¿¹°¡ °¢°¢ 1¿¹ ÀÖ¾ú´Ù.
2. HPV °¨¿°°ú º´¸®Á¶Á÷ÇÐÀû ºÐÈ­µµ ±×¸®°í ÀÓ»ó º´±â »çÀÌ¿¡ À¯ÀÇÇÑ »ó°ü °ü°è´Â Åë°è
ÇÐÀûÀ¸·Î ÀÎÁ¤µÇÁö ¾Ê¾Ò´Ù.
3. P53 °ú¹ßÇöÀº 24¿¹(77%)¿¡¼­ ³ªÅ¸³µÀ¸¸ç, HPV ¾ç¼ºÀÎ 21¿¹ Áß 18¿¹¿¡¼­, ±×¸®°í HPV
À½¼º 10¿¹Áß 6¿¹¿¡¼­ p53 °ú¹ßÇöÀ» º¸¿´´Ù. ±¸°­¾ÏÁ¾¿¡¼­ HPV-DNA °ËÃ⠾缺·ü°ú p53 °ú
¹ßÇö »çÀÌ¿¡ ÀÇÀÇÀÖ´Â Åë°èÇÐÀû »ó°ü°ü°è´Â ¾ø¾ú´Ù.
ÀÌ»óÀÇ °á°ú´Â ±¸°­¿¡ ¹ß»ýÇÑ ÆíÆò¼¼Æ÷ ¾ÏÁ¾ÀÇ ¹ß¾Ï°úÁ¤¿¡ HPVÀÇ °¨¿°°ú p53ÀÇ ¹ßÇöÀº
°¢°¢ ´Ù¸¥ ±âÀüÀ¸·Î ÀÛ¿ëÇÒ °¡´É¼ºÀ» ½Ã»çÇϸç HPV °¨¿°ÀÌ p53ÀÇ µ¹¿¬º¯À̸¦ À¯¹ßÇϴµ¥
´Ù¸¥ ÀÎÀÚ°¡ ÀÛµ¿ÇÒ °¡´É¼ºµµ ¾Ï½ÃÇÑ´Ù.
#ÃÊ·Ï#
Epidemiological evidence suggests that human papillomavirus(HPV) infection is a high
risk factor for the development of oral cancers. Many oncogenes, especially p53
suppressor gene, have a critical role of carcinogenesis in several human cancers
including oral cancers.
To investigate the prevalence of HPV infection and subtyping of high risk
group(HPV-16, -18 and -33) HPV in oral cancers, the author studied 31 cases of
squamous cell carcinomas arising from the oral cavity using polymerase chain reaction
(PCR). The author also demonstrated the overexpression of p53 oncoprotein in the oral
cancers using immunohistochemical methods. The correlation between HPVs infection
and p53 overexpression in tumorigenesis of the oral cancers was evaluated.
1. Twenty-one cases(66.7%) among 31 cases of oral squamous cell carcinomas were
positive for HPV-DNA. Among them, 16 cases were positive for HPV-16, 4 cases for
HPV-18, and 2 cases for HPV-33. Two cases were coinfected with HPV-16 and
HPV-18, and HPV-18 and HPV-33.
2. The prevalence of HPV infection appeared not correlated with tumor differentiation
and clinical stages of oral squamous cell carcinomas.
3. The overexpression of p53 oncoprotein was present in 24 of 31 cases(77% ). In 21
HPV positive tumors 18 cases were positive for overexpression of p53 oncoprotein. Six
cases were positive for p53 in ten HPV negative tumors. There was no correlation
between HPV DNA detection rate and p53 overexpression. The above results suggest
that HPV infection and p53 oncogene mutation play different roles in tumorigenesis of
oral squamous cell carcinomas. No coexpression of p53 oncoprotein with HPV-DNA
detection suggests that another etiologic mechanism other than HPV infection may be
operative.

Oral cancer; HPV infection; p53 overexpression; polymerase chain reaction; immunohistochemical stain.;

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