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THE CHANGE OF EXTRACELLUAR ALKALINE PHOSPHATASE EXPRESSION IN HYPERTROPHIC SCAR IN RABBITS

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Abstract

°á·Ð
º» ¿¬±¸´Â °¡ÅäÀÇ ºñÈļº ¹ÝÈç¸ðµ¨¿¡¼­ ³ªÅ¸³ª´ÂALP¹ßÇöÀÌ ½Ã°£ °æ°ú¿¡ µû¶ó, ¶Ç
triamcinolone Åõ¿©½Ã¿¡ ¾î¶»°Ô º¯ÇÏ´ÂÁö ¾Ë¾Æº¸±â À§ÇÏ¿© ½ÃÇàµÇ¾ú´Ù.
üÁß 2.5§¸³»¿ÜÀÇ ¿õ¼º ´ºÁú·£µå»ê °¡Åä 6¸¶¸®¸¦ ÀÌ¿ëÇÏ¿©, °¡ÅäÀÇ ±ÍÀÇ ¹èºÎ¿¡ Á÷°æ 6 §®
ÀÇ ¿øÇü ÀüÃþ ÇǺΠâ»óÀ» Çü¼ºÇÏ°í 16ÀÏ ÈÄ¿¡ â»ó¿¡ triamcinoloneÀ» ÁÖ»çÇÏ¿´°í, À̶§ ½Ä
¿°¼ö¸¦ ÁÖ»çÇÑ °ÍÀ» ´ëÁ¶±ºÀ¸·Î ÇÏ¿´´Ù. â»ó Çü¼ºÈÄ 3, 7, 15, 17, 19, 23ÀÏ¿¡ Á¶Á÷À» ÀýÃëÇÏ
°í Á¶Á÷ÇÐÀû ¹× ¸é¿ªÁ¶Á÷ÇÐÀûÀ¸·Î °üÂûÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
ALP¾ç¼º ¹ÝÀÀÀº 3ÀÏ¿¡ â»ó¿¬ ÁÖÀ§ÀÇ ¿°Áõ¼¼Æ÷¿Í ¼¶À¯¾Æ¼¼Æ÷¿¡¼­ °üÂûµÇ¾ú°í, 7ÀÏ¿¡´Â
»õ·Î Çü¼ºÁßÀÎ »óÇÇ ÇϹæÀÇ Ç÷°ü, ¿°Áõ¼¼Æ÷, ¼¶À¯¾Æ¼¼Æ÷¿¡¼­ °¡Àå °­ÇÏ°Ô ³ªÅ¸³µ´Ù. 15ÀÏ¿¡
´ÂALP¾ç¼º ¹ÝÀÀÀÌ °¨¼ÒµÇ¾î »óÇÇ ÇϹæÀÇ Ç÷°ü¿¡¼­ ÁÖ·Î °üÂûµÇ¾ú´Ù. 17ÀÏ ÀÌÈÄ¿¡´Â ½Ã°£ÀÌ
°æ°úÇÒ¼ö·ÏALP¾ç¼º ¹ÝÀÀ°ú ¼¶À¯Á¶Á÷ Áõ½ÄÀÌ Á¡Á¡ °¨¼ÒµÇ¾úÀ¸¸ç, ´ëÁ¶±º¿¡ ºñÇØ ½ºÅ×·ÎÀ̵å
Åõ¿©±º¿¡¼­ ¹ÝÀÀÀÌ ´õ ¾àÇÏ°Ô ³ªÅ¸³µ´Ù.
ÀÌ»óÀÇ °á°ú triamcinolone Åõ¿© ÈÄ ALP ¹ßÇöÀº Áõ°¡µÇÁö ¾Ê¾ÒÀ¸³ª ¼¶À¯Á¶Á÷ Áõ½ÄÀÌ °¨
¼ÒµÇ¾î, ¾î¶² ´Ù¸¥ ±âÀü¿¡ ÀÇÇØ ¹ÝÈç °¨¼ÒÈ¿°ú¸¦ ³ªÅ¸³¾ °ÍÀ¸·Î »ç·áµÈ´Ù.

ALP (alkaline phosphatase) is a membrane-bound metalloenzyme that is expressed in
osteoblasts, hepatocytes, lung, kidney, endothelial cells, leukocytes and other cells.
Normal soft tissue and skin show little tissue nonspecific ALP (TN-AP). However, scar
tissue contains high levels of TN-AP activity, and in fact, TN-AP is expressed
intensely regenerating connective tissue after the wounding.
The purpose of this study was to evaluate the change ALP expression in hypertrophic
scar model in rabbits and the effect of triamcinolone on ALP expression. Adult male
New Zealand white rabbits, weighing about 2.5 §¸, were used. After full-thickness
wounding over the ventral surface of each ear, either saline (control ear) or
triamcinolone (contralateral ear) was injected of day 16. Rabbits were sacrificed on day
3, 7, 15, 17, 19, 23, and the specimens were retrieved en bloc. Histologic and
immunohistochmical examinations of tissue samples were done. The results obtained
were as follows.
On day 3, ALP reaction was observed on fibroblasts and inflammatory cells in wound
margin. On day 7, ALP reaction was more intense than day 3 in capillaries, inflammtory
cells, and fibroblasts behind newly formed epithelium. On day 15, ALP reaction was
lessened in both groups and appeared mainly in subepidermal capillary network. Since
day 17, ALP reaction was lessened in both group and weaker in triamcinolone-injected
group than in saline injected group.
These results suggest that ALP reaction isn't increased in triamcinolone-injected and
triamcinolone reduces scar not by increasing TN-AP expression but other mechanism.

Å°¿öµå

Hypertrophic scar; Alkaline phosphatase;

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