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ÈòÁã¿¡¼­ Human Dura Mater(TutoplastR)¸¦ ÀÌ¿ëÇÑ ¹æ±¤È®´ë¼ú ÈÄ ¹æ±¤ Á¶Á÷ÀÇ Àç»ý¿¡ °üÇÑ ¿¬±¸ Bladder Cellular Regeneration after Augmentation Cystoplasty with Human Dura Mater(TutoplastR) in Rat

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Abstract

¼­·Ð
Á¤»óÀûÀÎ ¹æ±¤ ¹ß´ÞÀº ¹æ±¤»óÇÇÀÇ Çü¼º ÈÄ¿¡ ÆòÈ°±Ù³»·ÎÀÇ ÅÂ¾Æ Á߹迱 °áÇÕÁ¶Á÷
(mesenchyme)ÀÇ ºÐÈ­¿¡ ÀÇÇØ ÀÌ·ç¾îÁö¸ç, ÀÌÈÄ ÆòÈ°±ÙÀÌ ¼º¼÷µÇ¸é¼­ ¹æ±¤º® ¿ÜÃþÀÌ Çü¼ºµÈ
´Ù. ÀÌ·¯ÇÑ ¹ß´Þ °úÁ¤Àº ¹æ±¤À» »óÇÇ, °íÀ¯ÆÇ(lamina propria), ÆòÈ°±ÙÀ¸·Î ±¸¼ºµÈ 3°¡Áö Ãþ
À¸·Î ¿Ï¼º½ÃŲ´Ù.
¹æ±¤º®¿¡ ÀΰøÀûÀ¸·Î ¸¸µç °á¼ÕÀÇ Ä¡À¯, Áï ¹æ±¤Àç»ýÀº Á¤»óÁ¶Á÷ÀÇ Àý´ÜºÎ °¡ÀåÀÚ¸®¿¡¼­
ºÎÅÍ ½ÃÀ۵ȴÙ. Áö±Ý±îÁö ¿¬±¸µÈ ¸ðµç Á¾·ùÀÇ ¹æ±¤È®´ë¼úÀº 2°³ÀÇ °úÁ¤À» Æ÷ÇÔÇÏ°í ÀÖ´Ù.
Áï, °á¼ÕÀÇ °¡ÀåÀÚ¸®¿¡¼­ ÀϾ´Â °úÁ¤°ú °á¼ÕÀÇ Á߽ɺο¡ ÀÖ´Â ÆòÈ°±Ù¼¼Æ÷¼¶(islands of
smooth muscle cert)À¸·ÎºÎÅÍ ÀϾ´Â ¶Ç ÇϳªÀÇ °úÁ¤À¸·Î ÀÌ·ç¾îÁø´Ù. »óÇǼ¼Æ÷ÀÇ Áõ½ÄÀº
¿Ü»ó ÈÄ Ãʱ⿡ ±Þ°ÝÈ÷ ÀϾ¸ç ÆòÈ°±ÙÀÇ Àç»ýÀº »óÇǼ¼Æ÷ÀÇ Àç»ý ÈÄ¿¡ ÀϾ°í, ÀÌ·¯ÇÑ
Àç»ý¼¼Æ÷´Â Àý´ÜµÈ °¡ÀåÀÚ¸®ºÎÅÍ °á¼ÕÀÇ Á߽ɺηΠ³ªÅ¸³­´Ù. ÀÌ·¯ÇÑ °úÁ¤ÀÌ È®½ÇÈ÷ ÀϾ
´Â µ¥¿¡´Â 1°³¿ù¿¡¼­ 3°³¿ùÀÌ ¼Ò¿äµÈ´Ù. Àý´Ü¸éÀ¸·ÎºÎÅÍ ¶³¾îÁø ºÎÀ§ÀÇ Àç»ýÁ¶Á÷ ³» ÆòÈ°±Ù
¼¼Æ÷¼¶ÀÇ Á¸Àç´Â µ¿¼Ò ³» º¯È¯(in situ transmutation) ¶Ç´Â ÀÌ¹Ì Á¸ÀçÇÏ´Â °áÇÕÁ¶Á÷Çü¼º¼¼
Æ÷ ¿ä¼Ò(fibroblastic element)ÀÇ ºÐÈ­·Î ÀÎÇØ ÀϾ´Ù°í °¡Á¤ÇÑ´Ù. ¹æ±¤ÀÇ »õ·Î Àç»ýµÈ ºÎ
À§°¡ ½Å°æÁö ¹è¸¦ ¹Þ¾Æ ¼öÃà°ú ÀÌ¿ÏÀÇ Á¤»óÀûÀÎ »ý¸®Àû ±â´ÉÀ» ÇÒ Áö´Â ¾ÆÁ÷µµ ¿¬±¸ Áß¿¡
ÀÖ´Ù.
¹æ±¤ Àç°Ç¿¡ ´ëÇÑ ±¸Ã¼ÀûÀÎ ¸ñÇ¥´Â ¹æ±¤¿ëÀûÀ» Áõ°¡ ½ÃÄÑ ¹æ±¤ ³»¾ÐÀ» °¨¼Ò½ÃÅ°¸ç »óºÎ¿ä
·ÎÀÇ ±â´ÉÀ» À¯ÁöÇÏ°í ¿ä·ÎÁõ»óÀ» °³¼±ÇÏ¸ç ¿äÀÚÁ¦·ÂÀ» ȸº¹ÇÏ°í ¿ä°ü ¹æ±¤¿ª·ù¸¦ ¾ø¾Ö´Â
µî ¿ø·¡ÀÇ ¹æ±¤Á¶Á÷°ú °°Àº ±â´ÉÀ» Çϵµ·Ï Çϸç ÀåÀ» ÀÌ¿ëÇÑ ¹æ±¤È®´ë¼úÀÇ ÇÕº´ÁõÀ» ÁÙÀÌ´Â
µ¥ ÀÖ´Ù. ÀÌ·¯ÇÑ ¸ñÇ¥¸¦ ÀÌ·ç±â À§ÇØ µ¿¹°¸ðÇüÀÇ °³¹ßÀÌ ÇÊ¿äÇÏ°Ô µÇ¾ú°í ÀÌ ½ÇÇ赿¹°À» ÀÌ
¿ëÇÏ¿© ¹æ±¤È®´ë¼úÀ» ½ÃÇàÇÏ°í À̽ÄÆíÀ§·ÎÀÇ ¹æ±¤¼¼Æ÷ Àç»ýÀ» ¿¬±¸ÇÏ°Ô µÇ¾ú´Ù. ±×·¯³ª, ÀÌ
·¯ÇÑ ½Ã¼úÀº ÃßÀû °üÂû ±â°£ÀÌ Âª°í ¹æ±¤È®´ë¼ú¿¡ »ç¿ëÇÒ ´ëü Àç·á¸¦ ã±â À§ÇÑ ´õ ¸¹Àº
¿¬±¸°¡ ÇÊ¿äÇÑ »óȲÀÌ´Ù.
ÀÌ¿¡ ÀúÀÚµéÀº ¹æ±¤ÀÇ ¹ß´Þ°ú Àç»ý ½Ã¿¡ ÀϾ´Â ¼¼Æ÷ Çö»óÀ» ¿¬±¸Çϱâ À§ÇØ Àΰ£ÀÇ »ý
ü ³» Dura mater(TutoplastR)¸¦ ÀÌ¿ëÇÏ¿© ÈòÁãÀÇ ¹æ±¤È®´ë¼úÀ» ½ÃÇàÇÑ ÈÄ
¹æ±¤³»¾Ð°ú ¿ëÀû ¹× ÀÌ ¿ÜºÎ Á¶Á÷¿¡¼­ÀÇ ¹æ±¤ »óÇǼ¼Æ÷¿Í ÆòÈ°±Ù¼¼Æ÷ÀÇ Àç»ý ´É·ÂÀ» Á¶Á÷ÇÐ
ÀûÀ¸·Î °üÂûÇÏ¿´´Ù.

Purpose : To study the cellular events occuring during bladder development and
regeneration, we used the human Dura mater(TutoplasteR) for augmenting
the rat bladder. We compared their intravesical threshold pressure and volume, and
observed the regenerative capacity of urothelium and smooth muscle cell within
TutoplasR.
Materials and Methods : Among a total of 67 rats, 11 normal rats were checked their
intravesical threshold pressure and volume(Group 1). 9 rats underwent only
vesicotomy(Sham operation) and were checked their threshold pressure and volume at 2
months and 3 months postoperatively(Group 2). 47 rats underwent augmentation
cystoplasty with TutoplastR after partial cystectomy, which were checked
pressure and volume at 1 day, 3-7 days, 2-4 weeks, 2-6 months postoperatively(Group
3). Specimens were examined histologically to assess the regeneration of urothelium and
smooth muscle cell on the grafts.
Results : There was a significant increase in intravesical volume of group 3 compared
with group 1 and 2. There was a significant decrease in intravesical pressure of group
3 compared with group 2, but there was no significant difference between group 1 and
3. The specimens of 1 day postoperatively showed inflammatory findings.
Epithelialization on the grafts margin was noted at 3 days postoperatively. At 7 days
postoperatively, there was epithelial hyperplasia on the graft site. At 2 weeks
postoperatively, there was a partial absorption of TutoplastR as well as
favorable progression of epithelialization. Smooth muscle regeneration and complete
epithelialization were shown at 3 months postoperatively and absorption of
TutoplastR was completed thereafter.
Conclusions : The regeneration of bladder cellular constituents within
TutoplastR will be valuable for further understanding the mechanism
controlling bladder development and regeneration. Further studies will be necessary for
using the method as an alternative strategy to the classical bladder augmentation.

Å°¿öµå

Bladder regeneration; Augmentation cystoplasty; Dura mater; Tutoplast;

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