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ELECTRON MICROSCOPIC AND IMMUNOHISTOCHEMICAL STUDY ON THE PROLIFERATION OF RABBIT SUBMANDIBULAR GLANDULAR CELL AFTER DUCT LIGATION AND CUT

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ÀÌ¿µÁö (  ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­¾Ç¾È¸é¿Ü°úÇб³½Ç
ÀÌÀçÈÆ (  ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­¾Ç¾È¸é¿Ü°úÇб³½Ç

Abstract

°á·Ð
¾ÇÇϼ± µµ°üÀÇ °áÂû, ¶Ç´Â Àý´Ü ÈÄ ¾ÇÇϼ±¿¡¼­ ÀϾ´Â Á¶Á÷ÇÐÀû º¯È­¸¦ ºñ±³ ¿¬±¸Çϱâ
À§Çؼ­ °¡ÅäÀÇ °æºÎ Àý°³¸¦ ÅëÇÏ¿© ¾ÇÇϼ± µµ°üÀ» °áÂû ¹× Àý´ÜÇÑ ÈÄ 3, 5, 7, 14, 30ÀÏ° °ü
·ù°íÁ¤ÈÄ Èñ»ýÇÏ¿´´Ù. äµæÇÑ Ç¥º»À» Åë¹ý´ë·Î ó¸®ÇÏ¿© 4¥ìm ÆĶóÇÉÀýÆíÀ» Á¦ÀÛÇÏ¿©
Hematoxylin & Eosin ¿°»ö, Masson's Trichrome ¿°»ö ¹× ¸é¿ªÁ¶Á÷È­ÇÐ ¿°»öÈÄ ±¤ÇÐÇö¹Ì
°æÀ¸·Î °Ë°æÇÏ°í Åõ°úÀüÀÚÇö¹Ì°æÀ¸·Î °üÂûÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. H&E ¿°»ö ¼Ò°ß¿¡¼­´Â 3ÀÏ° µµ°üÀ» °áÂûÇÑ ±º°ú Àý´ÜÇÑ ±º¿¡¼­ ´Ù¼ÒÀÇ ¿°Áõ¼¼Æ÷°¡ °ü
ÂûµÇ¾úÀ¸¸ç ½Ã°£ °æ°ú¿¡ µû¶ó ¼±Æ÷ÀÇ ÅðÃà Çö»óÀÌ ³ªÅ¸³ª±â ½ÃÀÛÇÏ¿´´Ù. ½ÇÇè 7ÀÏ ¼Ò°ßÁß
µµ°ü °áÂû±º¿¡¼­ ¼±¹æ¼¼Æ÷°¡ µµ°ü¼¼Æ÷·Î È­»ý(metaplasia) µÇ´Â ¾ç»óÀÌ ³ªÅ¸³ª±â ½ÃÀÛÇÏ¿©
ÅðÇ༺ º¯È­¸¦ º¸¿´´Ù. µµ°ü Àý´Ü ±º¿¡¼­´Â °áÂû±ºº¸´Ù ÅðÇ༺ º¯È­´Â ½ÉÇÏ°Ô ³ªÅ¸³ªÁö ¾Ê
¾ÒÀ¸³ª µµ°üÀÌ ºÐ¸®µÇ´Â ¾ç»óÀÌ ³ªÅ¸³µ´Ù.
2. MT ¿°»ö ¼Ò°ß¿¡¼­´Â ¾ç±º ¸ðµÎ ±³¿ø¼¶À¯ ħÂøÀÌ Áõ°¡Çϱ⠽ÃÀÛÇؼ­ 30ÀÏ ¼Ò°ß¿¡ µµ°ü
»çÀÌ¿¡µµ °üÂûµÇ¾ú´Âµ¥, µµ°üÀ» °áÂûÇÑ ±º¿¡¼­ ±× Á¤µµ°¡ ´õ ½ÉÇÏ¿´´Ù.
3. ¸é¿ªÁ¶Á÷È­ÇÐ ¼Ò°ß¿¡¼­´Â 7ÀÏ° µµ°ü¼¼Æ÷¿¡¼­ PCNA ¾ç¼º¼¼Æ÷°¡ Áõ°¡ÇÏ¿´°í, 14ÀÏ°¿¡
´Â ¾ç±º °øÈ÷ ¼±¹æ¼¼Æ÷¿¡¼­ PCNA¾ç¼º¼¼Æ÷°¡ Áõ°¡ÇÏ¿´À¸¸ç ƯÈ÷ µµ°ü °áÂû±º¿¡¼­ ¶Ñ·ÇÇÑ
Áõ°¡¸¦ º¸¿´°í, °£Áú¼¼Æ÷¸¦ Á¦¿ÜÇÏ°í ÀÌÈÄ¿¡´Â Á¡Â÷ °¨¼ÒÇÏ¿´´Ù. 30ÀÏ°¿¡´Â µµ°ü Àý´Ü±ºÀÇ
¼±¹æ¼¼Æ÷ ¹× µµ°ü¼¼Æ÷¿¡¼­ PCNA ¾ç¼º¼¼Æ÷°¡ µµ°ü°áÂû±ºº¸´Ù ¸¹¾Ò´Ù.
4. Åõ°úÀüÀÚÇö¹Ì°æ ¼Ò°ß¿¡¼­´Â µµ°ü °áÂû±º¿¡¼­ 7ÀÏ°ºÎÅÍ µµ°ü È­»ýÀÌ ½ÃÀ۵Ǿú°í, 30ÀÏ°
ÇÙÀÇ º¯¿¬ÃßÇâ(margination)ÀÌ Á¡Á¡ µÎµå·¯Á® ÅðÈ­ÇÏ¿´´Ù. µµ°ü Àý´Ü±º¿¡¼­µµ µµ°ü È­»ýÀÌ
º¸À̱ä ÇÏ¿´Áö¸¸ µµ°ü °áÂûÀ» ½ÃÇàÇÑ ±ºº¸´Ù ´Ù¾çÇÑ Å©±âÀÇ °ú¸³µé ¼ö°¡ »ó´ëÀûÀ¸·Î ¸¹ÀÌ
°üÂûµÇ¾ú´Ù.
ÀÌ»óÀÇ ¼Ò°ßÀ¸·Î ¾ç±Ù °øÈ÷ µµ°ü È­»ýÀÌ °üÂûµÇ¾ú°í ÷ºÎÂÊ¿¡ °ú¸³µéÀÌ ¸ðÀÌ¸ç ¼¼Æ÷³» ¼Ò
±â°üÀÌ Àû¾îÁö°í r-ERÀÌ ¸¹¾ÆÁö´Â ÅðÇ༺ º¯È­¸¦ º¸¿´´Âµ¥ ƯÈ÷ µµ°ü °áÂû±º¿¡¼­ ´õ¿í ¶Ñ
·ÇÇÏ¿´´Ù. ¶ÇÇÑ µµ°ü °áÂû±º¿¡¼­ ¼±¹æ¼¼Æ÷, µµ°ü¼¼Æ÷ ¹× °£Áú¼¼Æ÷¿¡¼­ È°¹ßÇÑ Áõ½Ä¼ºÀ» º¸¿©
ÅðÇ༺ º¯È­°¡ º¸´Ù ½ÉÇÏ°Ô ÁøÇàµÇ¾ú´Ù.
#ÃÊ·Ï#
Obstructive sialadenitis of major of major salivary glands is a common entity that
occurs either in sialolithiasis or in foreign-body obstruction of the excretory ducts. This
is characterized histologically by the presence of duct-like structural groups in a highly
fibrotic stroma.
Although the pathologic features are well recognized, the various cell types involved in
the atrophy and subsequent regeneration of the obstructed salivary gland have been
controversial. For this reason, an animal model of obstructive sialadenitis that induced
atrophy in the salivary gland was used.
Experimental study was performed to observe changes of submandibular gland in rabbit
and apply the results to clinical activity, Forty five rabbits each weighing about 3Kg
were used and divided into control and experimental group. In the experimental group,
ducts of submandibular gland was ligated and cutted divided into each twenty rabbits.
Rabbits were serially sacrificed on the 3rd, 5th, 14th 30th day of experiment. The
submandibular glands were dissected out at sacrifice and stained with H&E, MT,
immunohistochemical stain and the histological examinations were carried out under th
light and transmission electron microscope.
After examination and comparison of all specimens, the results of this study were as
follows :
1. In the features of H&E stain, moderate infiltration of inflammatory cell were present
at 3rd day of experiment. The features of ductal metaplasia was observer after 7th day
in the ligation group and destructive changes was continues. In the cutting group,
atrophic changes were less sever than ligation group but the small ductule were
separated from stroma after 7th day.
2. In the feature of MT stain, apposition of connective tissue was increased in all
group, more active in ligation group.
3. In the features of immunohistochemical stain, ligation group showed increased PCNA
positive response at 7th day and the higher activity of duct cells was observed.
Severance group shoved increased PCNA positive response at 7th day and the higher
activity of duct cells was observed. Severance group showed more PCNA positive
response than ligation group at 30th day.
4. In TEM features, ductal metaplasia was started at 7th day and degenerative change
with margination of nucleus had been severe. Although ductal metaplasia was seen in
the severance group, more mumerous granule in different size was founded than ligation
group.
From above results, degenerative change was identified with ductal metaplasia, apically
apposition of granule, r-ER destruction in ligation group, Severance of duct elicit
degenerative change of grandular cells but the change was less sever than ligation
group and more PCNA positive cell was founded at acinar cell.

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