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A IMMUNOHISTOCHEMICAL STUDY ON HEAT SHOCK PROTEIN IN ORAL CARCINOGENESIS IN HAMSTER

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¿À½Âȯ (  ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­¾Ç¾È¸é¿Ü°úÇб³½Ç

Abstract

°á·Ð
Á¾¾ç¼¼Æ÷¿¡¼­ HSPÀÇ ¹ßÇöÀº ƯÈ÷ ¸é¿ªÀνÄÀ» Áõ°¡½ÃÄÑ ¾ÏÁ¾ÀÇ ¸é¿ª¹ÝÀÀ¿¡ Áß¿äÇÑ °ÍÀ¸·Î
¿©°ÜÁö°í ÀÖÀ¸³ª ±¸°­¾Ï¿¡¼­´Â ¿¬±¸µÈ ¹Ù°¡ °ÅÀÇ ¾ø¾î ÇܽºÅÍ Çù³¶¿¡ DMBA¸¦ µµÆ÷ÇÏ¿©
±¸°­¾ÏÀ» ¹ß»ý½ÃÄÑ°í ¹ß¾Ï °úÁ¤ÀÇ ´Ü°èº°·Î HSP47°ú HSP70ÀÇ ºÐÆ÷¾ç»ó°ú ¹ßÇö Á¤µµ¸¦ ¾Ë
¾Æ º¸±â À§ÇÏ¿© ¸é¿ªÁ¶Á÷È­ÇÐÀû °Ë»ç¸¦ ½ÃÇàÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. Á¤»ó ±¸°­ Á¡¸·¿¡¼­ HSP47 ¾ç¼º¼¼Æ÷´Â °ÅÀÇ ¹ßÇöÀÌ ¾ÈµÇ¾úÀ¸³ª 6ÁÖ ÀÌÈÄ¿¡ ±âÀúÃþ ¹×
»ó±âÀúÃþ¿¡ Áߵ ÀÌ»óÀ¸·Î Å©°Ô Áõ°¡µÇ¾ú°í, »óÇÇÀÌÇü¼º ´Ü°è¿¡´Â À¯±ØÃþ¿¡¼­µµ ¹ßÇöÀÌ
µÇ¾úÀ¸³ª, Àü¾Ï´Ü°è¿¡¼­ HSP47Àº ¾ç¼º¼¼Æ÷µéÀÌ ÀÎÁ¢ °æ°èÁ¶Á÷¿¡ °¡Àå ¸¹Àº ¹ßÇöÀ» º¸¿´´Ù.
2. °áÇÕÁ¶Á÷³» HSP47 ¾ç¼º¼¼Æ÷µéÀº ÁÖ·Î ¿°Áõ¼¼Æ÷µé·Î ´ëÁ¶±º¿¡¼­ »óÇÇÀÌÇü¼º, ¾ÏÁ¾ ´Ü°è
·Î °¥¼ö·Ï Áõ°¡ÇÏ¿´À¸¸ç, 14ÁÖ ÀÌÈÄ¿¡´Â Á¤»ó»óÇÇ¿Í °æ°èºÎ¿¡¼­ÀÇ ¹ßÇöµµ Å©°Ô °¨¼ÒµÇ¾ú´Ù.
3. HSP70ÀÇ ¹ßÇöÀº ´ëÁ¶±º ¹× »óÇÇÀÌÇü¼º ´Ü°è¿Í »óÇdz»¾Ï ´Ü°è¿¡¼­´Â ¾ø¾úÀ¸³ª ¾ÏÁ¾ ´Ü
°èÀÎ 14ÁÖ ÀÌÈÄÀÇ ±âÀúÃþÀº ¹ßÇöÀÌ ¾àÇÑ ¹Ý¸é ±Ø¼¼Æ÷Ãþ¿¡¼­ ¹ßÇöÀÌ Áõ°¡µÈ ¾ç»óÀ¸·Î ³ªÅ¸³µ
´Ù.
4. HSP70ÀÇ °áÇÕÁ¶Á÷³» ¹ßÇöÀº ´ëÁ¶±º¿¡ ºñÇÏ¿© ÀÌÇü¼º ±â°£¿¡ Áõ°¡ÇÏ¿´°í ¾ÏÁ¾ ´Ü°è¿¡¼­
°¡Àå ¸¹ÀÌ °üÂûµÇ¾úÀ¸¸ç, Á¾¾ç¼¼Æ÷¿¡¼­´Â ÀüüÀûÀ¸·Î ¹Ì¹ßÇöÀ» º¸¿© ºÐÈ­ ´Ü°è ¹× ¹ß¾Ï ±â
°£¿¡ Å« Â÷ÀÌ°¡ ¾øÀ» »Ó ¾Æ´Ï¶ó 16ÁÖ ÀÌÈÄÀÇ ¾ÏÁ¾¼¼Æ÷¿¡¼­´Â °ÅÀÇ À½¼ºÀ» º¸ÀÌ¸ç °¢±º »çÀÌ
¿¡ Â÷ÀÌ°¡ ¾øÀÌ À¯»çÇÑ À¯ÇüÀ» º¸¿´´Ù.
ÀÌ»ó°ú °°Àº ¼Ò°ßÀ¸·Î ±¸°­¾Ï ¹ß¾Ï ´Ü°è¿¡ µû¶ó HSP ¹ßÇöÀÌ ±¸°­¾ÏÀÇ Á¤µµ³ª ¾Ç¼ºÀáÀç·Â
ÀÇ Ç¥ÁöÀÚ´Â ¾Æ´Ï¶ó°í ¿©°ÜÁö³ª ¹ß¾ÏÁ¤µµ¿¡ µû¶ó °áÇÕÁ¶Á÷ ¹× ÀÎÁ¢°æ°è»óÇÇ¿¡¼­ÀÇ HSP ¹ß
Çö Áõ°¡°¡ °üÂûµÇ¾î Ç×Á¾¾ç ¸é¿ª¹ÝÀÀÀÇ Á¤µµ¸¦ ¹Ý¿µÇϱ⠶§¹®¿¡ ±¸°­Á¡¸·º´¼ÒÀÇ ¾Ç¼º ÀáÀç
¼ºÀ» Æò°¡Çϴµ¥ ÀÏ¹Ý Á¶Á÷¼Ò°ß¿¡ ºÎ°¡ÀûÀ¸·Î µµ¿òÀ» ÁÙ ¼ö ÀÖÀ¸¸®¶ó ¿©°ÜÁø´Ù.
#ÃÊ·Ï#
Heat shock protein (HSP) expression is unregulated in tumor cells and, HSP expression
is likely marker of the malignant potential of oral epithelial lesion. Furthermore, the
70kDa HSP is implicated in the degree of tumor differentiation, the rate of tumor
proliferation and the magnitude of the anti-tumor immune response. Accordingly, the
distribution and intensity of HSP 70 and HSP 47 expression was assessed in the DMBA
induced oral carcinogenesis in hamster.
Golden Syrian hamsters which were 3 months-age and 90-120g were collected.
9,10-dimethyl -1, 2-benzanthracene(DMBA) in a 0.5% solution in mineral oil was
painted on the buccal pouch mucosa 3 times per week in the study group.
In each control and experimental groups of 6, 8, 10, 12, 14, 16, 18, 20 weeks, specimen
were sectioned for immunohistochemical stydy with anti-HSP47 and anti-HSP70
antibody.
The following results were obtained.
1. HSP47 positive cells were rare or negative of normal oral mucosa, increased mildly
in basal and suprabasal basal layer, and spinous cell layer after experimental 6 weeks
(dysplastic of CIS stage). In CIS stage, HSP47 expression is prominent in dysplastic
free or normal adjacent epithelium.
2. HSP 47 positive cells in connective tissue were mainly inflammatory cells, which is
gradually increased from control to precancerous and cancer stage. But HSP47 positive
cells after 14 weeks were decreased, especially normal and cancer adjacent epithelium.
3. The positive staining cells of HSP70 in control, dysplastic, and CIS stage were not
seen. But they were mild findings in basal layer and moderate findings in spinous layer
after experimental 14 weeks (cancer stage).
4. HSP70 positive cells were increased in precancerous and cancer stage than control
group in connective tissue. After experimental 16 weeks, we could not find the HSP
expression in cancer cells according to cancer differentiation or cancer stage.
It is concluded that HSP70 or HSP47 expression is not a definitive marker of
malignancy or malignant potential. However. with further development, HSP
immunoreactivity may be valuable as an adjunct to conventional histology for assessing
the malignant potential of oral mucosal lesions.

Å°¿öµå

Oral carcinogenesis; epithelial dysplasia; squamous cell carcinoma; heat shock protein;

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