JOURNAL OF LUMINESCENCE
·
2016
·
IF 2.693
Lili Pang,Hongjing Cui,Yu Liu,Wenying Zhong
The dual-function anti-VEGF antibody conjugated CdHgTe quantum dots with good targeting property was successfully prepared. In this system, anti-VEGF antibody is not only a target agent but also a therapeutic drug. The anti-VEGF antibody conjugated near-infrared quantum dots can achieve the purposes of detection and treatment at the same time. As-prepared dual-function fluorescent probe in this work has been successfully applied for in vivo and in vitro imaging, which is promising in rapid tumor detection.
研究领域:
生物医学工程
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分子影像学
·
肿瘤学
✓ 已验证
产品关联
DOI
高影响因子
BIOMATERIALS
·
2011
·
IF 7.883
Yongjun Liu,Zhijin Chen,Chunxi Liu,Dexin Yu,Zaijun Lu,Na Zhang
Molecular imaging is essential to increase the sensitivity and selectivity of cancer diagnosis especially in the early stage of tumor. Here, we designed a novel multifunctional polymeric nanoparticle contrast agent (Anti-VEGF PLA-PEG-PLL-Gd NP) simultaneously modified with Gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA) and anti-vascular endothelial growth factor (VEGF) antibody to deliver Gd-DTPA to the tumor area and achieve the early diagnosis of hepatocellular carcinoma (HCC). The Anti-VEGF PLA-PEG-PLL-Gd NPs exhibited high T 1 relaxivity and no obvious cytotoxicity under the experimental concentrations in human hepatocellular carcinoma (HepG2) cells. The results of in vitro cell uptake experiments demonstrated that the uptake process of NPs was both concentration and time depended. Compared with non-targeted NPs, the Anti-VEGF antibody modified NPs showed much higher cell uptake in the HepG2 cells. During in vivo studies , the targeted NPs showed significantly signal intensity enhancement at the tumor site (mouse hepatocarcinoma tumor, H22) compared with non-targeted NPs and Gd-DTPA injection in tumor-bearing mice and the imaging time was significantly prolonged from less than an hour (Gd-DTPA injection group) to 12 h. These results demonstrated that this novel MRI contrast agent Anti-VEGF PLA-PEG-PLL-Gd NPs showed great potential in the early diagnosis of liver tumors.
研究领域:
医学影像学
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肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 68
·38987-38994
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IF 2.936
Dongzhi Yang,Na Wang,Haixia Ji,Shian Sun,Jingjing Dong,Yuanyuan Zhong,Chuntong Qian,Huanghuang Xu
Due to excellent optical properties, CdTe quantum dots (QDs) exhibit great potential in cancer imaging. However, CdTe QDs can be quickly cleared out before reaching the desired location because of their ultra-small size. The structure and optical properties of CdTe QDs are also easily affected by the surrounding solution, which leads to their compromised applications in vivo. Here, CdTe QDs were incorporated into hollow mesoporous silica nanoparticles (hMSN) to form CdTe@hMSN nano-platforms. The as-synthesized system maintained the excellent emission properties of CdTe QDs; meanwhile, relatively high drug loading efficiency was also observed for doxorubicin (DOX). With the target for vascular endothelial growth factor (VEGF), the formed CdTe@hMSN(DOX)–VEGF Abs showed feasibility of tumor-oriented drug delivery and CdTe@hMSN conjugate accumulation. The high accumulation and enhanced targeted drug delivery of CdTe@hMSN conjugates in tumor nodules confirmed that CdTe@hMSN conjugates can serve as promising candidates for cancer detection and treatment.
研究领域:
纳米技术
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癌症研究
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药学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
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2019
·
IF 2.367
Jun Shi,Yanting Wu,Siyi Guo,Huidi Zhang,Guitian Chen,Xiaoqi Xu
The aim of this study was to investigate the efficacy of anti-VEGF antibody-modified Paeonol liposome gels (PAE-BEV-lip gels) in the prevention and treatment of hypertrophic scars (HS). Systematic optimization of the encapsulation process of anti-VEGF antibody-modified Paeonol liposomes (PAE-BEV-lips) was performed using Box–Behnken design with the optimized parameters as follows: SPC concentration of 7.36 mg mL−1; SPC-Chol-PAE:pNP-PEG3000-DOPE:BVE-PEG3000-DOPE ratio of 14:5:4:0.28:0.05, w/w; the hydration temperature of 41 °C; stripping using pH 7.5 sodium dihydrogen phosphate buffer; and ultrasound for 3 min (ultrasound time 2 s, interval 3 s, power 300 W). Using these conditions, the encapsulation efficiency of PAE reached the peak level, i.e. 73.61 ± 2.36%. The PAE-BEV-lips displayed unimodal size-distribution with a mean diameter of (235.7 ± 4.67) nm and a zeta potential of –(5.13 ± 0.25) mV. The investigation of the retention effect PAE-BEV-lip gels revealed a slower transdermal delivery rate, a remarkable dermal retention effect, and superior bioavailability compared to PAE gels and PAE conventional liposome gels (PAE-lip gels). Meanwhile, PAE-BEV-lip gels exhibited definite effects on the prevention and treatment of HS of the rabbit ears. The PAE-BEV-lip gels group showed a lower scar proliferation rate, fewer and looser collagenous fibers and fibromyocytes, more regular chondrocytes, less calcified tissue and fewer inflammatory cells compared to other groups. At the same time, PAE-BEV-lip gels significantly reduced scar hyperplasia index (1.34 ± 0.51) and levels of VEGF, TGF-β1 and TNF-α (30.90 ± 3.57, 733.2 ± 43.19 and 66.76 ± 2.98 ng·L−1, respectively), compared to the model group (p < .01).
研究领域:
药剂学
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皮肤病学
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）