Blockade of CD47 increases survival of mice exposed to lethal total body irradiation.

Blockade of CD47 increases survival of mice exposed to lethal total body irradiation.
复制标题

DOI:
10.1038/srep01038
复制
发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Roberts, David D.
Roberts, David D.
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Soto-Pantoja, David R.;Ridnour, Lisa A.;Wink, David A.;Roberts, David D.

文献摘要

参考文献

被引文献

相似文献

电离辐射的意外或治疗性全身暴露具有深刻的病理生理后果,包括急性辐射综合征。目前,只有在发生放射性或核事故或恐怖主义时才能使用研究药物。缺乏对正常组织的选择性辐射防护剂也限制了可以递送以治疗癌症的治疗剂量。CD 47是分泌蛋白血小板反应蛋白-1的受体。血小板反应蛋白-1或CD 47的阻断提供了软组织和骨髓的局部放射保护。我们现在报告,使用反义吗啉代抑制CD 47增加暴露于致死性全身照射的小鼠的存活率。存活率的增加与外周循环血细胞计数的增加和骨髓衍生细胞增殖能力的增加有关。此外,CD 47阻断减少了细胞死亡,同时在放射敏感的胃肠道组织中诱导保护性自噬反应。因此,CD 47是一个新的放射治疗靶点,可以预防造血和胃肠道放射综合征。
Accidental or therapeutic total body exposure to ionizing radiation has profound pathophysiological consequences including acute radiation syndrome. Currently only investigational drugs are available in case of radiological or nuclear accidents or terrorism. Lack of selective radioprotectants for normal tissues also limits the therapeutic doses that can be delivered to treat cancers. CD47 is a receptor for the secreted protein thrombospondin-1. Blockade of thrombospondin-1 or CD47 provides local radioprotection of soft tissues and bone marrow. We now report that suppression of CD47 using an antisense morpholino increases survival of mice exposed to lethal total body irradiation. Increased survival is associated with increased peripheral circulating blood cell counts and increased proliferative capacity of bone marrow derived cells. Moreover, CD47 blockade decreased cell death while inducing a protective autophagy response in radiosensitive gastrointestinal tissues. Thus, CD47 is a new target for radiomitigation that prevents both hematopoietic and gastrointestinal radiation syndromes.
DOI: 10.2147/ijgm.s22177
发表时间: 2012
影响因子: 2.3
作者:
Heslet L;Bay C;Nepper-Christensen S
通讯作者: Nepper-Christensen S
DOI: 10.1161/01.res.0000259579.35787.4e
发表时间: 2007-03-16
影响因子: 20.1
作者:
Isenberg, Jeff S.;Romeo, Martin J.;Roberts, David D.
通讯作者: Roberts, David D.
DOI: 10.1097/sla.0b013e31815685dc
发表时间: 2008-01-01
期刊: ANNALS OF SURGERY
影响因子: 9
作者:
Isenberg, Jeff S.;Pappan, Loretta K.;Roberts, David D.
通讯作者: Roberts, David D.
DOI: 10.1016/j.matbio.2010.12.004
发表时间: 2011-03
期刊: MATRIX BIOLOGY
影响因子: 6.9
作者:
Frazier, Elfaridah P.;Isenberg, Jeff S.;Shiva, Sruti;Zhao, Lei;Schlesinger, Paul;Dimitry, Julie;Abu-Asab, Mones S.;Tsokos, Maria;Roberts, David D.;Frazier, William A.
通讯作者: Frazier, William A.
DOI: 10.1038/nrc2561
发表时间: 2009-03
期刊: Nature reviews. Cancer
影响因子: --
作者:
通讯作者: --