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TUMOR-ASSOCIATED PROTEINS IN RAT SUBMANDIBULAR GLAND INDUCED BY DMBA AND IRRADIATION

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Abstract

È­ÇÐ ¹ß¾ÏÁ¦ÀÎ DMBA ¸Å½Ä°ú ¹æ»ç¼± Á¶»ç·Î À¯¹ßµÈ ¹é¼­ ¾ÇÇϼ± Á¾¾ç¿¡¼­ Á¾¾ç ¼¼Æ÷ÀÇ
¿øÇü Áú¸· Ç¥¸é ´Ü¹éÁúÀÇ º¯È­¸¦ ±Ô¸íÇϱâ À§ÇØ 3M KCI ¿ë¾×À¸·Î ÃßÃâÇÑ ¾ÇÇϼ± Á¾¾ç¼¼Æ÷
ÀÇ Ç¥¸é ´Ü¹éÁú·ÎºÎÅÍ ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. Á¾¾ç¼¼Æ÷ÀÇ ¿øÇüÁú¸· ´Ü¹éÁúÀ» ÃßÃâÇÏ¿© PAG¹× SDS-PAGÀü±â ¿µµ¿À» ½ÃÇàÇÑ °æ°ú
Á¤»ó ¾ÇÇϼ±¿¡¼­ ³ªÅ¸³ªÁö ¾Ê´Â ´Ü¹éÁú A¿Í B°¡ »õ·Ó°Ô ³ªÅ¸³µ´Ù.
2. ´Ü¹éÁú A´Â ¾ÇÇϼ±¿¡ DMBA¸Å½Ä°ú ¹æ»ç¼± Á¶»ç¸¦ ½ÃÇàÇÑ 4ÁÖ ÈĺÎÅÍ ³ªÅ¸³ª±â ½ÃÀÛ
ÇÏ¿© 38ÁÖ±îÁö ±× ¾çÀÌ °ÅÀÇ ÀÏÁ¤ÇÏ¿´À¸¸ç ´Ü¹éÁú B´Â 10ÁÖ ÈĺÎÅÍ ³ªÅ¸³ª±â ½ÃÀÛÇÏ¿© 24
ÁÖ°¡ °æ°úÇÑ ÈÄ¿¡ »ç¶óÁ³´Ù.
3. ´Ü¹éÁú A´Â PAG Àü±â ¿µµ¿»ó¿¡¼­ ºÐÀÚ·® 96,000 daltonÀ¸·Î SDS-PAG Àü±â ¿µµ¿»ó¿¡
¼­´Â ±× ºÐÀÚ·®ÀÌ °¢°¢ 69,000°ú 35,000 dalton¿¡ ÇØ´çÇÏ´Â 2°³ÀÇ ¼Ò´ÜÀ§·Î ±¸¼ºµÇ¾î ÀÖ¾ú´Ù.
´Ü¹éÁú B´Â PAG Àü±â ¿µµ¿»ó¿¡¼­ ºÐÀÚ·® 53,000 daltonÀ¸·Î SDS-PAG »ó¿¡¼­´Â 50,000
daltonÀ¸·Î ³ªÅ¸³µ°í ÇϳªÀÇ ¼Ò´ÜÀ§·Î ±¸¼ºµÇ¾î ÀÖ¾ú´Ù.
4. Immunoelectrophoresis ¹× double immunodiffusion½ÃÇà °á°ú ´Ü¹éÁú A´Â Á¤»ó ¹é¼­ ¹×
ų»¹é¼­ÀÇ ¿©·¯ ±â°ü¿¡¼­´Â ¹ß°ßµÇÁö ¾Ê´Â Á¾¾ç ƯÀ̴ܹéÁú·Î, ´Ü¹éÁú B´Â Á¤»ó ¹é¼­ ¹×
ų»¹é¼­ÀÇ °£¿¡¼­µµ ³ªÅ¸³ª´Â ¾Ï °ü·Ã ´Ü¹éÁú·Î Á¶»çµÇ¾ú´Ù.
#ÃÊ·Ï#
This study was performed in order to identify changes of the plasma membrane
proteins in rat submaudibular gland tumors induced by 7,12-dimethylbenz[a] anthracene
[DMBA] and X-irradiation. Two kinds of tumor associated membrane proteins (protein
A and B) were isolated with 3 M KCI extraction from rat submandibular gland tumors
induced by DMBA and X-irradiation. To identify their antigenicities,
immunoelectrophoresis and double immunodiffusion was carried out with various proteins
extracted from liver, heart, skin and pancreas of adult rats and from embryonic liver,
heart and skin.
The rabbit antisera against the protein A did not cross-react with any of the proteins
extracted from the above mentioned tissues, suggesting that protein A might be tumor
specific antigen. However, the rabbit antisera against protein B was precipitated with
proteins extracted from the liver of adult and embryonic rats.
Polyacrylamide gel electrophoresis of these two proteins (A and B) showed that
protein A was a dimer with molecular weights of 69,000 and 35,000 dalton, whereas
protein B was a monomer with molecular weight of 50,000 dalton.

Irradiation; DMBA; Tumor associated membrane proteins; Immunoelectrophoresis; Double immunodiffusion; Tumor specific antigen;

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