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½ÇÇèÀû °£°æº¯Áõ¿¡ À־ µ¿¾çÇ÷°ü ³»ÇǼ¼Æ÷ÀÇ º¯È­ The Morphologic Changes of the Sinusoidal Endothelial Cells in N- diethylnitrosamine Induced Cirrhotic Rat Liver

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¹é¿ÁÁö/Ok Ji Paik ¹ÚÈñ°æ/äÁ¾¹Î/°ûÁ¤½Ä/¼ÕÅÂÁß/Hee Kyung Park/Jong Min Chae/Jyung Sik Kwak/Tae Joong Sohn

Abstract

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½ÇÇèÀû °£°æº¯Áõ¿¡¼­ Disse °­ÀÇ ¼¼Æ÷¿Ü ±âÁúÀÇ Ä§Âø¿¡ µû¸¥ µ¿¾çÇ÷°ü ³»ÇǼ¼Æ÷ÀÇ º¯È­¸¦
¾Ë¾Æº¸°íÀÚ Sprague-Dawley°è ¼öÄÆ ÈòÁã¿¡ N-Diethylnitrosamine(DEN) 100 mg/KgÀ» ÁÖ
1ȸ ¹Ýº¹Çؼ­ º¹°­ ³»·Î ÁÖ»çÇÑ ÈÄ °£°æº¯ÁõÀ» À¯¹ßÇÏ°í ÃÖÃÊ ÁÖ»ç ÈÄ 1ÀÏ, 3ÀÏ, 1, 2, 3, 4,
5 ¹× 6ÁÖ¿¡ °¢°¢ 3 ¸¶¸®¾¿ µµ»ìÇÏ¿© ±¤ÇÐÇö¹Ì°æ, ¸é¿ªÁ¶Á÷È­ÇÐÀû, Åõ°úÀüÀÚÇö¹Ì°æ ¹× ÁÖ»çÀü
ÀÚÇö¹Ì°æÀ¸·Î °üÂûÇÏ¿´´Ù. ±× °á°ú DEN Åõ¿© 2ÁÖ ÈĺÎÅÍ µ¿¾çÇ÷°ü ÁÖÀ§ÀÇ Disse °­¿¡ ¼¼Æ÷
ÀÇ ±âÁúÀÇ ÃàÀûÀÌ ÀϾÀ¸¸ç 4ÁÖ ÈĺÎÅÍ ±âÀú¸·À» Çü¼ºÇϱ⠽ÃÀÛÇÏ¿´´Ù. ¸é¿ªÁ¶Á÷È­ÇÐÀû
°üÂû¿¡¼­ lamininÀº 4ÁÖ ÈĺÎÅÍ µ¿¾çÇ÷°ü ÁÖÀ§¿¡ ¿¬¼ÓÀûÀ¸·Î ¿°»öµÇ±â ½ÃÀÛÇÏ¿´À¸¸ç ½ÇÇè 6
ÁÖ ÈÄ¿¡´Â ¼¶À¯¼º °Ýº®°ú Àü°£¼Ò¿±ÀÇ µ¿¾çÇ÷°ü ÁÖÀ§¿¡ °­ÇÏ°Ô ¹ÝÀÀÇÏ¿´´Ù. µ¿¾çÇ÷°ü ³»ÇǼ¼
Æ÷ÀÇ ÁÖ»çÀüÀÚÇö¹Ì°æ °üÂû¿¡¼­ DEN Åõ¿© 4ÁÖ ÈĺÎÅÍ ´Ù°ø¼ºÀÇ °¨¼Ò°¡ ÀϾ ±× Å©±â¿Í
¼ýÀû °¨¼Ò°¡ ½ÃÀ۵Ǿú´Ù. 6ÁÖ ÈÄ¿¡´Â ³»ÇǼ¼Æ÷ º®¿¡ âÀÌ °ÅÀÇ ¼Ò½ÇµÇ¾î ÀÖ¾ú´Ù. µû¶ó¼­
DENÀ¸·Î À¯µµµÈ ½ÇÇèÀûÀÎ °£°æº¯Áõ¿¡¼­ µ¿¾çÇ÷°ü ³»ÇǼ¼Æ÷ÀÇ ´Ù°ø¼ºÀÇ ¼Ò½Ç ¹× ±âÀú¸·ÀÌ
Çü¼º µîÀÇ º¯ÇüÀÌ µ¿¾çÇ÷°ü ³»ÀÇ Ç÷¾×°ú °£¼¼Æ÷ »çÀÌÀÇ ¹°Áú ±³È¯À» ¾î·Æ°Ô ÇÏ¿© °£¼¼Æ÷ÀÇ
±â´É ÀúÇÏ ³ª¾Æ°¡ °£±â´É ºÎÀüÀ» ÃÊ·¡Çϴµ¥¿¡ Áß¿äÇÑ ±â¿©¸¦ ÇÒ °ÍÀ¸·Î ¹Ï¾îÁø´Ù. µ¿¾çÇ÷
°üÀÇ ³»ÇǼ¼Æ÷ÀÇ º¯ÇüÀº Disse °­¿¡ lamininÀ» Æ÷ÇÔÇÑ ¼¼Æ÷¿Ü ±âÁúÀÇ ÃàÀûÀÌ ±× ¿øÀÎÀ¸·Î
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#ÃÊ·Ï#
The purpose of this study is to investigate the morphologic changes of the sinusoidal
endothelial cells and the associated structures of the cirrhotic rat liver induced by repeat
intraperitoneal injections of N-diethylnitrosamine (DEN) (100 mg/kg/week). One day to 6
weeks later, rat livers were observed under the light, transmission and scanning electron
microscopy, and immunostained with laminin antibody. Two weeks after DEN treatment,
the fibrillar material in Disse's space was noted, and then a basement membrane-like
structure was found at 4 weeks after treatment. Laminin was detected in perisinusoidal
areas after 4 weeks. Laminin was strongly positive on the fibrous septum and in the
sinusoidal wall of cirrhotic nodules after 6 weeks of treatment. The diameters and
numbers of sinusoidal endothelial fenestrations did not change significantly until 2
weeks. They decreased within 4 weeks, and then the sinusoidal endothelium was poorly
fenestrated at 6 weeks after DEN treatment. These results suggest that as fibrosis
develops in cirrhosis, the deposit of extracellular matrix such as laminin within Disse's
space is a major contributing factor in the structural alteration of sinusoidal endothelial
cells, and the capillarization of the sinusoidal endothelial cells may be a contributor to
impairment of the hepatic function in cirrhosis.

Å°¿öµå

Rat liver; Cirrhosis; Sinusoidal endothelial cell; Laminin; Scanning electron microscopy;

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