Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
ÇѱÛÁ¦¸ñ(Korean Title) |
ÆäÀÌÁö·©Å©¸¦ ÀÌ¿ëÇÑ ¾ÏȯÀÚÀÇ ÀÌÁúÀûÀÎ ¿¹ÈÄ À¯ÀüÀÚ ½Äº° ¹× ¿¹ÈÄ ¿¹Ãø |
¿µ¹®Á¦¸ñ(English Title) |
Identification of Heterogeneous Prognostic Genes and Prediction of Cancer Outcome using PageRank |
ÀúÀÚ(Author) |
ÃÖÁ¾È¯
¾ÈÀç±Õ
Jonghwan Choi
Jaegyoon Ahn
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¿ø¹®¼ö·Ïó(Citation) |
VOL 45 NO. 01 PP. 0061 ~ 0068 (2018. 01) |
Çѱ۳»¿ë (Korean Abstract) |
¾ÏȯÀÚÀÇ ¿¹ÈÄ ¿¹Ãø¿¡ ±â¿©ÇÏ´Â À¯ÀüÀÚ¸¦ ã´Â °ÍÀº ȯÀÚ¿¡°Ô º¸´Ù ÀûÇÕÇÑ Ä¡·á¸¦ Á¦°øÇϱâ À§ÇÑ µµÀü °úÁ¦ Áß ÇϳªÀÌ´Ù. ¿¹ÈÄ À¯ÀüÀÚ¸¦ ã±â À§ÇØ À¯ÀüÀÚ ¹ßÇö µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÑ ºÐ·ù ¸ðµ¨ °³¹ß ¿¬±¸°¡ ¸¹ÀÌ ÀÌ·ç¾îÁö°í ÀÖ´Ù. ÇÏÁö¸¸ ¾ÏÀÇ ÀÌÁú¼ºÀ¸·Î ÀÎÇØ ¿¹ÈÄ ¿¹ÃøÀÇ Á¤È®µµ Çâ»ó¿¡ ÇÑ°è°¡ ÀÖ´Ù´Â ¹®Á¦°¡ ÀÖ´Ù. º» ³í¹®¿¡¼´Â À¯¹æ¾ÏÀ» ºñ·ÔÇÑ 6°³ÀÇ ¾Ï¿¡ ´ëÇÑ ¾ÏȯÀÚÀÇ ¸¶ÀÌÅ©·Î¾î·¹ÀÌ µ¥ÀÌÅÍ¿Í »ý¹°ÇÐÀû ³×Æ®¿öÅ© µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© ÆäÀÌÁö·©Å© ¾Ë°í¸®ÁòÀ» ÅëÇØ ¿¹ÈÄ À¯ÀüÀÚµéÀ» ½Äº°ÇÏ°í, K-Nearest Neighbor ¾Ë°í¸®ÁòÀ» »ç¿ëÇÏ¿© ¾Ï ȯÀÚÀÇ ¿¹Èĸ¦ ¿¹ÃøÇÏ´Â ¸ðµ¨À» Á¦¾ÈÇÑ´Ù. ±×¸®°í ÆäÀÌÁö·©Å©¸¦ »ç¿ëÇϱâ Àü¿¡ K-Means Ŭ·¯½ºÅ͸µÀ¸·Î À¯ÀüÀÚ ¹ßÇö ÆÐÅÏÀÌ ºñ½ÁÇÑ »ùÇõéÀ» ³ª´©¾î ÀÌÁú¼ºÀ» ±Øº¹ÇÏ°íÀÚ ÇÑ´Ù. º» ³í¹®¿¡¼ Á¦¾ÈÇÑ ¹æ¹ýÀº ±âÁ¸ÀÇ À¯ÀüÀÚ ¹ÙÀÌ¿À¸¶Ä¿¸¦ ã´Â ¾Ë°í¸®Áòº¸´Ù ³ôÀº ¿¹Ãø Á¤È®µµ¸¦ º¸¿©ÁÖ¾úÀ¸¸ç, GO °ËÁõÀ» ÅëÇØ Å¬·¯½ºÅÍ¿¡ ƯÀÌÀûÀÎ »ý¹°ÇÐÀû ±â´ÉÀ» È®ÀÎÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
The identification of genes that contribute to the prediction of prognosis in patients with cancer is one of the challenges in providing appropriate therapies. To find the prognostic genes, several classification models using gene expression data have been proposed. However, the prediction accuracy of cancer prognosis is limited due to the heterogeneity of cancer. In this paper, we integrate microarray data with biological network data using a modified PageRank algorithm to identify prognostic genes. We also predict the prognosis of patients with 6 cancer types (including breast carcinoma) using the K-Nearest Neighbor algorithm. Before we apply the modified PageRank, we separate samples by K-Means clustering to address the heterogeneity of cancer. The proposed algorithm showed better performance than traditional algorithms for prognosis. We were also able to identify cluster-specific biological processes using GO enrichment analysis.
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Å°¿öµå(Keyword) |
ÆäÀÌÁö·©Å©
¾Ï
ÀÌÁú¼º
¿¹ÈÄ ¿¹Ãø
¹ÙÀÌ¿À¸¶Ä¿
ºÐ·ùºÐ¼®
PageRank
cancer
heterogeneity
prognosis prediction
biomarker
classification
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