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Abstract

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»óÀû ÀÎÀÚ´Â ¿¹ÈÄ¿ÍÀÇ Åë°èÀû À¯ÀǼºÀº ¾ø¾ú´Ù.
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Àû±â°£ÀÌ Âª¾Æ Åë°èÀûÀÎ ÀÇÀÇ´Â ¾ø¾ú´Ù. ¶ÇÇÑ, 6°³¿ù ÀÌ»ó ÃßÀû°Ë»ç°¡ °¡´ÉÇÏ¿´´ø °æ¿ì ¸ðµÎ
¹æ»ç¼± Ä¡·á¸¦ ½ÃÇàÇÏ¿´À¸¹Ç·Î ÀÌ¿¡ ´ëÇÑ È¿¿ë¼ºÀ» Åë°èÇÐÀûÀ¸·Î ¾ð±ÞÇÒ ¼ö´Â ¾øÁö¸¸. ÀÌ¿Í
º´ÇàÇÏ¿© È­Çпä¹ýÀ» ½ÃÇàÇÑ °æ¿ì¿¡´Â Æò±Õ »ýÁ¸À²À» À¯ÀÇÇÏ°Ô Áõ°¡½ÃÄ×´Ù. ±×·¯¹Ç·Î, ¼ö¼ú
ÈÄ ¹æ»ç¼± ¹× Ç×¾ÏÄ¡·á¿¡ À־ Á» ´õ Àû±ØÀûÀÎ Ä¡·á°¡ ÇÊ¿äÇÏ´Ù.
°á·ÐÀûÀ¸·Î. ÀÌ Á¾¾çÀÇ ¹ß»ý¿¡ °ü·ÃµÈ p53°ú ¾ÏÀ¯ÀüÀÚÀÇ ¸é¿ª¹ÝÀÀµµ´Â ȯÀÚÀÇ ¿¹Èĸ¦ ÆÇ
Á¤ÇÏ´Â ÀÎÀڷμ­ÀÇ ÀÇÀÇ´Â ¾ø¾ú´Ù. ±×¸®°í. ¿©·¯ ¹®Çå¿¡¼­ ¿¹ÈÄ¿Í °ü·ÃÀÌ ÀÖ´Ù°í º¸°íµÈ
DNA ploidy´Â º» ¿¬±¸¿¡¼­´Â ¿¹ÈÄ °áÁ¤ ÀÎÀڷμ­ÀÇ Åë°èÀû ÀÇÀǸ¦ ¹ß°ßÇÒ ¼ö ¾ø¾ú´Ù. ±×·¯
¹Ç·Î. ȯÀÚ °³°³ÀÎÀÇ ¿¹Èĸ¦ °áÁ¤ÇÏ´Â º¸´Ù °´°üÀûÀÎ ÁöÇ¥¸¦ ¾ò±â À§ÇÑ ¿¬±¸°¡ ´õ ÇÊ¿äÇÏ´Ù°í »ç·áµÈ´Ù
#ÃÊ·Ï#
Primitive neuroectodermal tumor(PNETs) and medulloblastoma are common primary
malignant brain tumors of childhood. Untreated patients are proven to be fatal, but the
current treatment regimens may achieve 50% to 60% cures. However, the prognosis of
each individual case can not be accurately determined, because exact prognostic factors
have not been established. The aim of this study was to investigate whether various
factors were correlated with clinical outcome, and to understand their roles in the
oncogenesis.
Twenty-five patients with medulloblastoma and nine patients with supratentorial
PNETs were reviewed(mean follow-up periods : 25.6 months). We have investigated the
prognostic value of p53 protein and other oncogene expression by immunohistochemistry
and DNA analysis by flow cytometry on paraffin section of the specimen, We also
studied the other prognostic factors such as clinical features, tumoral factors, and
treatment medalities as well.
The positive expression of p53 protein, c-myc, and pan-ras were significantly high in
these tumors. With DNA flow cytometry. 18 were aneuploid and 8 were diploid. There
was no significant prognostic correlation between the immunoreactively of p53, oncogene
expression, and DNA ploidy. Only the stage of tumor(T. M stage : p=0.0002, 0.0418,
respectively) and chemotherapy(p=0.0433) were correlated with their prognosis.
We conclude that further special investigations should be added to justify the
prognostic factors for these highly malignant tumors.

Å°¿öµå

PNETs; Medulloblastomam Immunohistochemistry; Oncogene; p53; DNA ploidy.;

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