| ²é¿´: 939 | »Ø¸´: 2 | |||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | |||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |||
9125lnͳæ (СÓÐÃûÆø)
|
[ÇóÖú]
DNA methylation-associated silencing of tumor-suppressor microRNAs in cancer
|
||
|
¼¸¾ä·Òë²»³öÀ´µÄ 1 Considering the genomic rearrangements, copy-number alterations and translocations that many cancer cells suffer and that give rise to altered levels of the transcripts, changes in the tumoral cell phenotype can be due not only to the protein alteration itself, but also to global RNA deregulation by altered competition for miRNAs 2 This mechanism creates a feedback relationship taking into account that miR-103/107 are both generated by and regulators of Dicer, producing a downscaling of Dicer levels but not their complete depletion, maintaining a basal level to regulate the miRNA pathway. 3 iRNAs transcribed from CpG islands undergo DNA methylation-associated repression with a similar chromatin context to coding genes, such as binding of the transcriptional repressor methyl-CpG-binding domain proteins (Lujambio et al., 2007; Urdinguio et al., 2010), and a histone modification profile associated with silencing, such as in the case of loss of acetylation of histones H3 and H4 (Lujambio et al., 2007; Toyota et al., 2008). |
» ²ÂÄãϲ»¶
½ÓÊÜÈκε÷¼Á
ÒѾÓÐ6È˻ظ´
22408 312Çóµ÷¼Á
ÒѾÓÐ26È˻ظ´
ÊÕµ½¸´ÊÔµ÷¼Áµ«ÊÇÈ¥²»ÁË
ÒѾÓÐ8È˻ظ´
260Çóµ÷¼Á
ÒѾÓÐ5È˻ظ´
¼±Ðèµ÷¼Á
ÒѾÓÐ10È˻ظ´
É격/¿¼²©
ÒѾÓÐ4È˻ظ´
»¯¹¤Ñ§Ë¶294·Ö£¬Çóµ¼Ê¦ÊÕÁô
ÒѾÓÐ37È˻ظ´
Çóµ÷¼Á
ÒѾÓÐ11È˻ظ´
Ò»Ö¾Ô¸»ªÖÐũҵ071010£¬320Çóµ÷¼Á
ÒѾÓÐ19È˻ظ´
304Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
editorlin
ľ³æ (ÕýʽдÊÖ)
- ·ÒëEPI: 19
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.07
- ½ð±Ò: 4091
- ºì»¨: 10
- Ìû×Ó: 731
- ÔÚÏß: 73.5Сʱ
- ³æºÅ: 1376940
- ×¢²á: 2011-08-23
- ÐÔ±ð: GG
- רҵ: ÆäËûÎÞ»ú·Ç½ðÊô²ÄÁÏ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï
°®ÓëÓêÏÂ(½ð±Ò+1): £¡~ 2011-09-23 08:46:36
°®ÓëÓêÏÂ(½ð±Ò+1): £¡~ 2011-09-23 08:46:36
|
µÚ3¶Î×îºóÒ»¾äÐÞ¸ÄÈçÏ¡ª¡ª ºóÕßÓë»ùÒò¾²Ä¬Èç×éµ°°×H3ºÍH4µÄÒÒõ£»¯×÷Óò»×ãÕâÖÖÇé¿öÓйأ¨Â¬¹þÄ·±È°ÂµÈ£¬2007£»·áÌïµÈ£¬2008£©¡£ |

3Â¥2011-09-22 23:42:12
editorlin
ľ³æ (ÕýʽдÊÖ)
- ·ÒëEPI: 19
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.07
- ½ð±Ò: 4091
- ºì»¨: 10
- Ìû×Ó: 731
- ÔÚÏß: 73.5Сʱ
- ³æºÅ: 1376940
- ×¢²á: 2011-08-23
- ÐÔ±ð: GG
- רҵ: ÆäËûÎÞ»ú·Ç½ðÊô²ÄÁÏ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
°®ÓëÓêÏÂ(½ð±Ò+1): £¡~ 2011-09-23 08:46:22
sltmac(½ð±Ò+10, ·ÒëEPI+1): 2011-09-26 07:02:15
sltmac: ÐÁ¿à£¬»¶Ó³£À´ 2011-09-26 07:02:21
°®ÓëÓêÏÂ(½ð±Ò+1): £¡~ 2011-09-23 08:46:22
sltmac(½ð±Ò+10, ·ÒëEPI+1): 2011-09-26 07:02:15
sltmac: ÐÁ¿à£¬»¶Ó³£À´ 2011-09-26 07:02:21
|
ºÇºÇ£¬¸ôÐÐÈç¸ôɽ£¬ÓÉÓÚ²»ÊÇÕâ¸öרҵµÄ£¬ËùÒÔ·ÒëÆðÀ´ºÜÀÛ£¬¶øÇÒ²»Ò»¶¨ÒëµÃ¶Ô¡£ÏÖÔÚÌṩÒëÎÄÈçÏ£¬Ï£Íû´ó¼ÒÅúÆÀÖ¸Õý¡£¶àл£¡ 1. ¼øÓÚ»ùÒòÖØ×é¡¢¿½±´ÊýÁ¿±ä»¯ÒÔ¼°µ¼ÖÂÐí¶à°©Ï¸°û¾Àú²¢ÒýÆðת¼ˮƽ¸Ä±äµÄÒ×룬Ö×Áöϸ°ûÏÔÐ͵ı仯²»½öÊǵ°°×ÖÊ×ÔÉí±ä»¯µ¼Öµģ¬Ò²ÊǾºÕùmiRNAsµÄ±ä»¯Ôì³ÉÁËÈ«RNA·´³£ËùÖ¡£ 2. ¸Ã»úÀí²úÉúÒ»ÖÖ·´À¡¹ØÏµ£¬ÕâÖÖ¹ØÏµÖØÊÓmiR-103/107µÄÐγɺÍDicer»ùÒòµÄµ÷¿ØÒò×Ó£¬ÒýÆðDicer»ùÒòˮƽµÄϽµµ«ÉÐδÍêÈ«ËðºÄ£¬¶øÊÇά³ÖÔÚÄܹ»µ÷¿ØmiRNA·¾¶µÄ»ù´¡Ë®Æ½¡£ 3. ÓÉÓÚÏàËÆÈ¾É«ÌåµÄ×÷Óã¬ÓÉCpGµº×ªÂ¼ÐγɵÄiRNAsÊܵ½ÁËÓëDNA¼×»ù»¯ÓйصÄÒÖÖÆ×÷Ó᣸ÃȾɫÌåÓë±àÂë»ùÒòºÍ×éµ°°×±äÐÔÓйأ¬Ç°ÕßÈç½áºÏת¼ÒÖÖÆÒò×Ó¼×»ù-CpG-½áºÏÇøÓòµ°°×ÖÊ£¨Â¬¹þÄ·±È°ÂµÈ£¬2007£»ÎÖ¶¡¹ÈÒÁ°ÂµÈ£¬2010£©£¬ºóÕßÓë»ùÒò¾²Ä¬Óйأ¬Èç×éµ°°×H3ºÍH4µÄÒÒõ£»¯×÷Óò»×ãÕâÖÖÇé¿ö¡£ |

2Â¥2011-09-22 23:35:53













»Ø¸´´ËÂ¥
50