±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 478  |  »Ø¸´: 1

biomill8358

ÎÞ³æ (СÓÐÃûÆø)

[½»Á÷] ¡¾·ÖÏí¡¿RNA ½áºÏµ°°×HuRͨ¹ý´Ì¼¤XIAPµÄ·­Òë¶ø½éµ¼µÄϸ°û±£»¤ ÒÑÓÐ1È˲ÎÓë

RNA-binding protein HuRmediates cytoprotectionthrough stimulation of XIAP translation
RNA ½áºÏµ°°×HuRͨ¹ý´Ì¼¤XIAPµÄ·­Òë¶ø½éµ¼µÄϸ°û±£»¤
DDurie1,2, S MLewis1,5, ULiwak1,2, MKisilewicz1,2, MGorospe4 and MHolcik
Oncogene(2011) 30, 1460¨C1469; doi:10.1038/onc.2010.527; published online 22 November 2010
ÕªÒª£ºExpression of the intrinsic cellular caspaseinhibitor XIAP is regulated primarily at the level of protein synthesis. The 5¡äuntranslatedregion harboursan Internal Ribosome Entry Site (IRES) motif that supports cap-independent translation of XIAP mRNA during conditions of cellular stress. In this study, we show that the RNA-binding protein HuR, which is known to orchestrate an antiapoptoticcellular program, stimulates translation of XIAP mRNA through XIAP IRES. We further show that HuRbinds to XIAP IRES in vitroand in vivo, and stimulates recruitment of the XIAP mRNA into polysomes. Importantly, protection from the apoptosis-inducing agent etoposideby overexpressionof HuRrequires the presence of XIAP, suggesting that HuR-mediated cytoprotectionis partially executed through enhanced XIAP translation. Our data suggest that XIAP belongs to the HuR-regulated RNA operonof antiapoptoticgenes, which, along with Bcl-2, Mcl-1 and ProT¦Á, contributes to the regulation of cell survival.
1.ϸ°û¹ÌÓеÄcaspaseÒÖÖÆÎïXIAPµÄ±í´ïÖ÷ÒªÔÚµ°°×ºÏ³ÉµÄˮƽÉÏÊܵ½µ÷¿Ø¡£5¡äUTRÇøÓÐÒ»¸öÄÚ²¿ºËÌÇÌå½øÈëλµã£¨IRES£©½á¹¹Óò£¬ËüΪÔÚϸ°ûѹÁ¦Ìõ¼þÏ£¬XIAP mRNAñ×ÓÒÀÀµµÄ·­ÒëÌṩÁËÖ§³Ö¡£
2.±¾Ñо¿ÖУ¬ÎÒÃÇչʾÁËRNA½áºÏµ°°×HuR£¬Ò»ÖÖЭµ÷ϸ°û¿¹µòÍö³ÌÐòµÄµ°°×£¬Í¨¹ýXIAPµÄIRES´Ì¼¤XIAP mRNAµÄ·­Òë¡£½øÒ»²½Õ¹Ê¾ÁËHuRÔÚÌåÄÚÍâÓëXIAP IRESµÄ½áºÏ²¢´Ì¼¤ÕÐļXIAP mRNAÐγɶà¾ÛÌå¡£
3.ÖØÒªµÄÊÇ£¬¹ý±í´ïHuRµÖ¿¹Òý·¢µòÍöµÄÊÔ¼ÁÒÀÍв´ß°ÐèÒªXIAPµÄ´æÔÚ£¬°µÊ¾HuR½éµ¼µÄϸ°û±£»¤×÷Óò¿·ÖµÄͨ¹ý¼ÓÇ¿XIAPµÄ·­ÒëÀ´Ö´ÐС£
4.ÎÒÃǵÄÊý¾Ý°µÊ¾XIAPÊôÓÚHuRµ÷½ÚµÄ¿¹µòÍö»ùÒòµÄRNA²Ù×Ý×Ó£¬ËüÓëBcl-2, Mcl-1 ºÍProT¦ÁÒ»ÆðÓÐÖúÓÚϸ°ûÉú´æµÄµ÷¿Ø¡£
¸ü¶à×ÊÁÏÇëµÇ¼www.bioknow.cn
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹ØÉ̼ÒÍÆ¼ö: (ÎÒÒ²ÒªÔÚÕâÀïÍÆ¹ã)

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zlbmail

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
Â¥Ö÷£¬ÄãÊÇ×örnaµÄÂð£¿ÎÒÏëÇë½ÌÄãÈç¹ûÖªµÀÁËÒ»¸öµ°°×£¬Õâ¸öµ°°×ÊÇ¿ÉÒÔÓëmrna½áºÏµÄ£¬ÓÃʲô·½·¨¿ÉÒÔȥѰÕÒÓëÕâ¸öµ°°×½áºÏµÄmrna°¡£¿Ð»Ð»Á˹þ
2Â¥2011-04-11 03:34:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ biomill8358 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 317·Ö Ò»Ö¾Ô¸ÄÏÀí¹¤²ÄÁϹ¤³Ì ±¾¿Æºþ¹¤´ó Çóµ÷¼Á +10 ÓóÄàСÁåîõ 2026-03-28 10/500 2026-03-29 20:51 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ324Çóµ÷¼Á +5 hanamiko 2026-03-29 5/250 2026-03-29 16:46 by ѧԱ8dgXkO
[¿¼ÑÐ] 329Çóµ÷¼Á +10 Å¥¶÷Ñ© 2026-03-25 10/500 2026-03-29 13:32 by peike
[¿¼ÑÐ] 0856²ÄÁÏ»¯¹¤µ÷¼Á ×Ü·Ö330 +14 zhubinhao 2026-03-27 14/700 2026-03-29 10:01 by Sjndkwm
[¿¼ÑÐ] 330·ÖÇóµ÷¼Á +5 qzenlc 2026-03-29 5/250 2026-03-29 07:37 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 295Çóµ÷¼Á +4 wei-5 2026-03-26 4/200 2026-03-28 23:20 by Сľ³ætim
[¿¼ÑÐ] 312£¬ÉúÎïѧÇóµ÷¼Á +3 СÒëͬѧabc 2026-03-28 3/150 2026-03-28 15:32 by ÂäÉ˼
[¿¼ÑÐ] 070300Çóµ÷¼Á306·Ö +4 26ÒªÉϰ¶ 2026-03-27 4/200 2026-03-28 13:06 by ÌÆãå¶ù
[¿¼ÑÐ] 070300»¯Ñ§Çóµ÷¼Á +4 Æð¸öÃûÕ¦ÕâôÄÑ 2026-03-27 4/200 2026-03-27 21:39 by 83503ËïÀÏʦ
[¿¼ÑÐ] Çóµ÷¼Á +4 Áã°Ë# 2026-03-27 4/200 2026-03-27 18:07 by yu221
[¿¼²©] 26É격 +3 ¼ÓÓͳ尡£¡ 2026-03-26 3/150 2026-03-27 15:38 by cls512
[¿¼ÑÐ] 085600£¬²ÄÁÏÓ뻯¹¤321·Öµ÷¼Á +4 ´ó²öС×Ó 2026-03-27 6/300 2026-03-27 14:11 by ËÉ»¨¸×1201
[¿¼ÑÐ] ¿¼Ñе÷¼Á +10 ºôºô£¿~+123456 2026-03-24 10/500 2026-03-27 11:46 by wangjy2002
[¿¼ÑÐ] 276Çóµ÷¼Á¡£ÓаëÄêµç³ØºÍ°ëÄê¸ß·Ö×Óʵϰ¾­Àú +10 ²ÄÁÏѧ257Çóµ÷¼Á 2026-03-23 11/550 2026-03-27 10:13 by YCIT- LHL
[¿¼ÑÐ] 336²ÄÁÏÇóµ÷¼Á +7 ³ÂäÞÓ¨ 2026-03-26 9/450 2026-03-27 00:20 by wxiongid
[¿¼ÑÐ] 325Çóµ÷¼Á +3 Aoyijiang 2026-03-23 3/150 2026-03-26 20:46 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤304ÇóBÇøµ÷¼Á +3 Çñgl 2026-03-25 3/150 2026-03-25 19:03 by Ainin_
[¿¼ÑÐ] 292Çóµ÷¼Á +4 ¶ì¶ì¶ì¶î¶î¶î¶î¶ 2026-03-24 4/200 2026-03-24 16:41 by peike
[¿¼ÑÐ] 277·ÖÇóµ÷¼Á£¬¿çµ÷²ÄÁÏ +3 ¿¼Ñе÷¼Álxh 2026-03-24 3/150 2026-03-24 13:52 by JourneyLucky
[¿¼ÑÐ] ½ÓÊÕ2026˶ʿµ÷¼Á(ѧ˶+ר˶) +4 allen-yin 2026-03-23 6/300 2026-03-23 15:04 by Íô£¡£¿£¡
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û