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C57BL/96 MouseÀÇ Æó, °£, ½ÅÀå¿¡¼­ ¹æ»ç¼±Á¶»ç ÈÄ TIMP-1, TIMP-2ÀÇ ¹ßÇö¿¡ ´ëÇÑ ¸é¿ªÁ¶Á÷È­ÇÐÀû ¿¬±¸ Immunohistochemical studies for TIMP-1 and TIMP-2 Expression after Irradiation in Lung, Liver and Kidney of C57BL/6 Mouse

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³ë¿µÁÖ/Young Ju Noh ¾È½Âµµ/±èÁ¾ÈÆ/ÃÖÀº°æ/ÀåÇý¼÷/Seung Do Ahn/Jong Hoon Kim/Eun Kyung Choi/Hyesock Chang

Abstract

¸ñÀû: ÇǺγª Æó, °£ ½ÅÀå µîÀÇ ¼¶À¯È­°¡ ¹æ»ç¼± Á¶»ç ÈÄ ÁÖ¿äÇÑ ºÎÀÛ¿ë ÁßÀÇ ÇϳªÀ̳ª ¾ÆÁ÷±îÁö ÀÌ °úÁ¤¿¡¼­ TGF-¥â °¡ ÁÖ¿äÇÑ ¿ªÇÒÀ» ÇÏ´Â °Í ÀÌ¿Ü¿¡´Â ¹àÇôÁø °ÍÀÌ °ÅÀÇ ¾ø´Â »óÅÂÀÌ´Ù. ¶Ç matrix metalloproteinase (MMP) ¹× tissue inhibitor of
metalloproteinase
(TIMP) À¯ÀüÀÚ È°¼º ¹× ¹ßÇöÀÌ Á¶Á÷ÀÇ À籸¼º°ú ¼Õ»ó, ¾Ï¼¼Æ÷ÀÇ Ä§À±°ú ÀüÀÌ¿¡ °ü¿©ÇÏ°í ÀÖ°í, ¹æ»ç¼±ÀÌ Á¾¾çÀÇ Ä¡·á¿¡ ³Î¸® ÀÌ¿ëµÇ°í ÀÖÀ½¿¡µµ ¹æ»ç¼±¿¡ ÀÇÇÑ MMP¿Í TIMP À¯ÀüÀÚÀÇ ¹ßÇö¿¡ ´ëÇÑ ¿¬±¸´Â °ÅÀÇ ¾ø´Â »óÅÂÀÌ´Ù. ÀÌ¿¡ ÀúÀÚµéÀº ¹æ»ç¼± Á¶»ç°¡ TIMP-1,
TIMP-2ÀÇ
¹ßÇö¿¡ ¾î¶² ¿µÇâÀ» ³¢Ä¡´ÂÁö ¾Ë¾Æº¸°íÀÚ º» ¿¬±¸¸¦ ½ÃÀÛÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý: C57BL/6 »ýÁ㸦 Varian CL-4/100À» »ç¿ëÇÏ¿© °¢°¢ 0, 2, 10 GyÀÇ Á¶»ç·®À¸
·Î Àü½ÅÁ¶»ç¸¦ ÇÏ¿´´Ù. ¹æ»ç¼± Á¶»ç ÈÄ 24, 48 ½Ã°£¿¡ »ýÁ㸦 Èñ»ýÇÏ¿© Æó, °£, ½ÅÀåÀ» ¾ò¾î
paraffin Æ÷¸Å Á¶Á÷ ÀýÆíÀ» ¸¸µé¾î Avidin-Biotin Complex ¹æ¹ýÀ¸·Î ¸é¿ª ¿°»öÀ» ÇÑ ÈÄ ±¤
ÇÐ Çö¹Ì°æÀ¸·Î °üÂûÇÏ¿© ¿°»öÀÇ °­µµ¿Í ¸éÀû¿¡ µû¶ó Á¡¼öÈ­ ÇÏ¿´´Ù.
°á°ú: TIMP-1Àº ´ëÁ¶±º¿¡ ºñÇØ ¹æ»ç¼± Á¶»ç ÈÄ ÆóÁ¶Á÷¿¡¼­´Â º¯È­°¡ ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ
´Ù. °£Á¶Á÷¿¡¼­´Â °£¼¼Æ÷¿Í kuffer ¼¼Æ÷¿¡¼­ ¹ßÇöÀÌ Áõ°¡ÇÏ¿´°í, ½ÅÀåÁ¶Á÷¿¡¼­´Â ÁÖ·Î ¼¼´¢
°ü ¼¼Æ÷¿¡¼­ ¹ßÇöÀÌ Áõ°¡ÇÏ¿´°í ¹æ»ç¼± Á¶»ç ÈÄ °æ°ú ½Ã°£¿¡ µû¸¥ º¯È­´Â °ÅÀÇ ¾ø¾ú´Ù.
TIMP-2´Â ÆóÁ¶Á÷¿¡¼­´Â 2 Gy Á¶»ç ÈÄ ¹ßÇöÀÌ Áõ°¡µÇ¾ú°í, °£Á¶Á÷¿¡¼­µµ 2 Gy 24 ½Ã°£¿¡
´Â È°¼ºÀÌ Áõ°¡ÇßÀ¸³ª 10 Gy¿¡¼­´Â ´ëÁ¶±º ¼öÁØÀ̾ú´Ù. ½ÅÀåÁ¶Á÷¿¡¼­´Â 10 Gy¿¡¼­´Â ¹ßÇö
ÀÇ Á¤µµÀÇ º¯È­´Â ¾ø¾ú°í 2 Gy¿¡¼­´Â ¹ßÇöÀÌ °¨¼ÒÇÏ¿´´Ù.
°á·Ð: °¢ Àå±â¿¡¼­ TIMP-1°ú TIMP-2ÀÇ ¹ßÇöÀÇ Á¤µµ´Â Â÷ÀÌ°¡ ÀÖ¾úÀ¸¸ç, °¢ Àå±âÀÇ Æ¯Á¤
ÇÑ ¼¼Æ÷¿¡¼­¸¸ ¹ßÇöÀÌ µÇ¾ú´Ù. TIMP-1ÀÇ °æ¿ì °£°ú ½ÅÀå¿¡¼­´Â ¹æ»ç¼±¿¡ ÀÇÇØ ¹ßÇöÀÌ Áõ°¡
µÇ¾úÀ¸³ª Æó¿¡¼­´Â ¹ßÇöÀÌ Áõ°¡µÇÁö ¾Ê¾Ò´Ù. TIMP-2ÀÇ °æ¿ì Æó¿¡¼­´Â ¹æ»ç¼±¿¡ ÀÇÇØ ¹ßÇö
ÀÌ Áõ°¡ÇÏ¿´À¸³ª °£°ú Æó¿¡¼­´Â ¹æ»ç¼±¿¡ ÀÇÇÑ ¹ßÇöÀÇ º¯È­´Â ºÒ±ÔÄ¢ÀûÀ̾ú´Ù. ¹æ»ç¼± Á¶»ç
ÈÄ °æ°ú ½Ã°£°ú ¹æ»ç¼±·®¿¡ µû¸¥ ¹ßÇöÀÇ º¯È­µµ ÀÏÁ¤ÇÏÁö ¾Ê¾Ò´Ù.

Purpose: Changes in the balance between MMP and TIMP can have a profound effect on the composition in the extracellular matrix (ECM) and affect various cellular functions including adhesion, migration, differentiation of cells, and fibrosis and
invasion
and metastasis of cancer cells. Radiation therapy is a popular treatment modality for benign and malignant tumor, but the study for radiation effect on MMP and TIMP is scarce, In the current study, we have examined the expression of TIMP in
fibrosis-prone (C57BL/6) mice after radiation.
Methods and Materials: Adult female mice of 10~12 weeks were used. The whole body
were irradiated using a Varian CL-4/100 with 2 and 10 Gy. Immunohistochemical
staining was performed according to Avidin Biotin complex method and evaluated by
observing high power field. For TIMP-1, TIMP-2 anti bodies, reactivity was assessed in
the parenchymal cell and in the stromal cell. The scale of staining was assessed by
combining the quantitative and qualiative intensity of staining.
Results: TIMP-1 immunoreactivity did not change in lung. But, in liver, TIMP-1
immunoreactivity was localized in cytoplasm of hepatocyte and kupffer cell. In kidney,
TIMP-1 immunoreactivity was localized in cytoplasm of some tubular cell. Temporal
variations were not seen. Dose-response relationship was not seen except kidney.
TIMP-2 immunoreactivity in lung was a score (++) at 0 Gy and elevated to a score
(+++) at 2 Gy. TIMP-2 immunoreactivity was a score(++) in liver at 0 Gy. TIMP-2
immunoreactivity was localized in cytoplasm of hepatocyte and kupffer cell as same as
patterns of TIMP-1 immunoreactivity. The TIMP-2 immunoreactivity in liver was
elevated to (+++) at 2 Gy. Immunoreactivity to TIMP-2 in kidney was a score (+++) at
0 Gy and ws not changed at 10 Gy. The sore of TIMP-2 immunoreactivity was reduced
to (++) at 2 Gy. TIMP-2 immunoreactivity was confined to tubules in kidney. Temporal
variation of TIMP-2 immunoreactivity was irregular. Dose-response relationship of
TIMP-2 immunoreactivity was not seen.
Conclusions: Differences between intensity of expression of TIMP-1 and TIMP-2 in
each organ was present. Expression of TIMP was localized to specific cell in each
organ. Irradiation increased TIMP-1 immunoreactivity in the liver and the kidney.
Irradiation increased TIMP-2 immunoreactivity in the lung. But, in the liver and the
kidney, TIMP-2 expression to radiation was irregular. Temporal variation of TIMP-2
immunoreactivity was irregular. Dose-response relationship of TIMP-2 immunoreactivity
was not seen. In the future, we expect that the study of immunohistochemical staining
of longer period of post-irradiation and quantitative analysis using western blotting and
northern blotting cold define the role of TIMP in the radiation induced tissue fibrosis.

TIMP; Radiation; C57BL/6 mouse; Immunohistochemisty; TIMP; Radiation; C57BL/6 mouse; Immunohistochemisty;

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