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Abstract

°á·Ð
67¸íÀÇ ±ÙÄ¡Àû ÀýÁ¦¼úÀ» ½ÃÇà¹ÞÀº ÁøÇ༺ À§¾Ï ȯÀÚ¸¦ 5-FU, Adriamycin ¿ä¹ý±º(N=37)
°ú 5-FU, Adriamycin, ¸Þ½Ã¸¶¿¢½º ¿ä¹ý±º(N=30)À¸·Î ³ª´©¾î ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
¸Þ½Ã¸¶¿¢½º Åõ¿©±º¿¡¼­ NK activity(NK 25)´Â Åõ¿©Àü¿¡ ºñÇÏ¿©(25.8%) ¸Þ½Ã¸¶¿¢½º Åõ¿© 2
°³¿ù ¹× 4°³¿ù ÈÄ¿¡ °¢°¢ 28.9%, 43.4%·Î »ó½ÂÇÏ¿© NK cellÀÇ ±â´ÉÀÌ À¯ÀÇÇÏ°Ô Çâ»óµÇ¾ú´Ù
(p<0.05). ¶ÇÇÑ ¸Þ½Ã¸¶¿¢½º Åõ¿©±ºÀÇ ADCC¸¦ ½Ã±âº°·Î ºÐ¼®ÇÑ °á°ú Åõ¿©Àü¿¡ ºñÇÏ¿©
(37%) Åõ¿©2°³¿ù ÈÄ 42.1%·Î »ó½ÂÇÏ¿© À¯ÀÇÇÑ Áõ°¡¸¦ º¸¿´´Ù(p<0.05). ´ëÁ¶±º¿¡¼­ Ä¡·áÀüÈÄ
ÀÇ ADCC´Â À¯ÀÇÇÑ º¯È­°¡ ¾ø¾ú´Ù(p>0.05). ¸Þ½Ã¸¶ ¿¢½º Åõ¿©±º¿¡¼­ Åõ¿©Àü°ú Åõ¿©4°³¿ù ÈÄ
ÀÇ CD4+ cellÀº 30%¿¡¼­ 35%·Î À¯ÀÇÇÏ°Ô Áõ°¡ÇÏ¿´À¸³ª(p<0.05) CD8+ cell¹× CD4+/CD8+
ratio´Â Åõ¿© Àü°ú Åõ¿©ÈÄ¿¡¼­ À¯ÀÇÇÑ º¯È­°¡ ¾ø¾ú´Ù(p>0.05).
¸é¿ª ¼¼Æ÷ È°¼ºµµ¸¦ ¸Þ½Ã¸¶¿¢½º Åõ¿©±º°ú ´ëÁ¶±º »çÀÌ¿¡ ¼­·Î ºñ±³ÇÏ¿´À» ¶§ ¾ç±º»çÀÌ¿¡
¸é¿ª ¼¼Æ÷ÀÇ È°¼ºµµ¿¡ À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(p>0.05). ¸Þ½Ã¸¶¿¢½º Åõ¿©±ºÀÇ 2³â ¹«
º´ »ýÁ¸À²Àº 77%À̾ú°í ´ëÁ¶±ºÀÇ 2³â ¹«º´»ýÁ¸À²Àº 58%·Î ¸Þ½Ã¸¶¿¢½º Åõ¿©±º¿¡¼­ À¯ÀÇÇÏ
°Ô ¹«º´»ýÁ¸±â°£ÀÌ ±æ¾ú´Ù(p<0.05). ¸Þ½Ã¸¶¿¢½º Åõ¿©±º¿¡¼­ WHO ºÐ·ù»ó Grade ¥²ÀÌ»óÀÇ
ºÎÀÛ¿ëÀº °üÂûµÇÁö ¾Ê¾Ò´Ù. ÀÌ»óÀÇ °á°ú·Î ±ÙÄ¡Àû ÀýÁ¦¼úÀ» ½ÃÇà¹ÞÀº À§¾ÏȯÀÚ¿¡¼­ÀÇ ¸Þ½Ã
¸¶¿¢½ºÀÇ Åõ¿©´Â ¸é¿ª ÁÖÈ¿ ¼¼Æ÷ÀÇ È°¼ºÈ­ ¹× ¹«º´ »ýÁ¸À²ÀÇ Áõ°¡¿¡ À¯ÀÇÇÑ È¿°ú¸¦ ³ªÅ¸³»¾ú´Ù.
#ÃÊ·Ï#
Purpose : The Mesima-Ex is a kind of biologic response modifier, which is extracted
from a mushroom called Phellinus linteus. Mesima-Ex consists of various chemical
compounds which include protein bound polysaccharide, mucoprotein, triterpenoid, and
quinones. Mesima-Ex exerts its antitumor effects by augmenting host immune response
without any toxic side effects. In vitro study, Mesima-Ex seems to potentiates antibody
dependent cell mediated cytotoxicity(ADCC) and cell mediated cytotoxicity(CMI) against
tumor cells. We initiated this study to verify antitumor effects of Mesima-Ex as an
antineoplastic agent.
Materials and Method : Gastric cancer patients who underwent curative resection with
normal hepatic and renal function were eligible. They were divided into two groups by
random number table. One group(N=30: Mesima-Ex group) received postoperative
adjuvant chemotherapy with 5-FU(500 mg/m2 weekly), adriamycin(40
mg/m2 every 3 weeks) and Mesima-Ex(6 cap daily per Os). Another
group(N=37: control group) received 5-FU and adriamycin only without Mesima-Ex
NK(natural killer cell) activity, ADCC(antibody dependent cell mediated cytotoxicity),
CD4+, and CD8+ cells were measured and an analysis of disease free survival rate of
the two study groups was performed.
Results : Sixty seven patients were enrolled in this study. Their median age was 55
years old. NK activity(basal activity: 25%) was enhanced significantly at the 2nd, and
4th months in the Mesima-Ex group(28.9%, 43.4%, p<0.05). ADCC was also enhanced
from 37% to 42.1% at the 2nd month in the Mesima-Ex group(p<0.05). The control
group did not show any significant change in NK activity or ADCC. The CD4+ cell
ratio was increased from 37% to 42.1% at the 2nd months in the Mesima-Ex group but
not in the control group(p<0.05). There was no significant change in CD8+
subsets(p>0.05). There were no toxic side effects more than grade ¥² from Mesima-Ex
administration. The two year disease free survival rate was higher in the Mesima-Ex
group than that of the control group(77% vs 58%, p<0.05).
Conclusion : Mesima-Ex can be used safely as an immunomodulator with standard
chemotherapeutic agents for purpose of adjuvant chemotherapy Mesima-Ex was effective
in augmenting host immune response in vitro. The Mesima-Ex group showed a higher
two year disease free survival rate than that of the control group.

Å°¿öµå

Mesima-Ex; Immunomodulator; Phellinus linteus; Gastric cancer;

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