Evaluation of the novel USPIO GEH121333 for MR imaging of cancer immune responses.
Evaluation of the novel USPIO GEH121333 for MR imaging of cancer immune responses.
复制标题
对癌症免疫反应MR成像的新型USPIO GEH121333的评估。
DOI：
10.1002/cmmi.1526
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发表时间：
2013-05
影响因子：
--
通讯作者：
Daldrup-Link, Heike E.
中科院分区：
文献类型：
--
作者：
Shi, Qiaoyun;Pisani, Laura J.;Lee, Yauk K.;Messing, Solomon;Ansari, Celina;Bhaumik, Srabani;Lowery, Lisa;Lee, Brian D.;Meyer, Dan E.;Daldrup-Link, Heike E.
Tumor-associated macrophages (TAM) maintain a chronic inflammation in cancers, which is associated with tumor aggressiveness and poor prognosis. The purpose of this study was to: (1) evaluate the pharmacokinetics and tolerability of the novel ultrasmall superparamagnetic iron oxide nanoparticle (USPIO) compound GEH121333; (2) assess whether GEH121333 can serve as a MR imaging biomarker for TAM; and (3) compare tumor MR enhancement profiles between GEH121333 and ferumoxytol. Blood half-lives of GEH121333 and ferumoxytol were measured by relaxometry (n = 4 each). Tolerance was assessed in healthy rats injected with high dose GEH121333, vehicle or saline (n = 4 each). Animals were monitored for 7 days regarding body weight, complete blood counts and serum chemistry, followed by histological evaluation of visceral organs. MR imaging was performed on mice harboring MMTV-PyMT-derived breast adenocarcinomas using a 7 T scanner before and up to 72 h post-injection (p.i.) of GEH121333 (n = 10) or ferumoxytol (n = 9). Tumor R1, R2* relaxation rates were compared between different experimental groups and time points, using a linear mixed effects model with a random effect for each animal. MR data were correlated with histopathology. GEH121333 showed a longer circulation half-life than ferumoxytol. Intravenous GEH121333 did not produce significant adverse effects in rats. All tumors demonstrated significant enhancement on T1, T2 and T2*-weighted images at 1, 24, 48 and 72 h p.i. GEH121333 generated stronger tumor T2* enhancement than ferumoxytol. Histological analysis verified intracellular compartmentalization of GEH121333 by TAM at 24, 48 and 72 h p.i. MR imaging with GEH121333 nanoparticles represents a novel biomarker for TAM assessment. This new USPIO MR contrast agent provides a longer blood half-life and better TAM enhancement compared with the iron supplement ferumoxytol. Copyright © 2013 John Wiley & Sons, Ltd. Supporting information may be found in the online version of this paper
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肿瘤血管生成中的尿激酶和巨噬细胞。
影响因子：
8.8
作者：
Hildenbrand, R.;Dilger, I.;Hoerlin, A.;Stutte, H. J.
通讯作者：
Stutte, H. J.
DOI：
10.1158/1078-0432.ccr-10-3420
发表时间：
2011-09-01
期刊：
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子：
--
作者：
Daldrup-Link HE;Golovko D;Ruffell B;Denardo DG;Castaneda R;Ansari C;Rao J;Tikhomirov GA;Wendland MF;Corot C;Coussens LM
通讯作者：
Coussens LM
影响因子：
4.8
作者：
Mizutani, Kosuke;Sud, Sudha;Pienta, Kenneth J.
通讯作者：
Pienta, Kenneth J.
影响因子：
2.2
作者：
Kawamura, Kyoko;Komohara, Yoshihiro;Takeya, Motohiro
通讯作者：
Takeya, Motohiro
影响因子：
5.3
作者：
GUY, CT;CARDIFF, RD;MULLER, WJ
通讯作者：
MULLER, WJ