1
|
Yin J, Xin B, Hui X, Chai N, Yao L, Hu H, Xu B, Ma W, Zhang M, Wang J, Nie Y, Zhou G, Wang G, Chen L, Lu H, Wu K. 188Re-labeled GX1 dimer as a novel dual-functional probe targeting TGM2 for imaging and antiangiogenic therapy of gastric cancer. Eur J Pharm Biopharm 2020; 154:144-152. [PMID: 32682942 DOI: 10.1016/j.ejpb.2020.07.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 07/03/2020] [Accepted: 07/14/2020] [Indexed: 01/21/2023]
Abstract
PURPOSE The GX1 peptide (CGNSNPKSC) can specifically bind to TGM2 and possesses the ability to target the blood vessels of gastric cancer. This study intends to develop an integrated dual-functional probe with higher affinity, specificity and targeting and to characterize it in vivo and in vitro. METHODS The dimer and tetramer of GX1 were prepared using cross-linked PEG and labeled with 99mTc. The best targeting probe [PEG-(GX1)2] was selected by gamma camera imaging in nude mouse models of gastric cancer. 188Re-PEG-(GX1)2 was prepared and characterized through cell binding analysis and competitive inhibition experiments, gamma camera imaging, MTT analysis and flow cytometry, BLI, immunohistochemistry, HE staining and biochemical analysis. RESULTS PEG-(GX1)2 bound specifically to Co-HUVEC with higher affinity than GX1. 188Re-PEG-(GX1)2 had better ability to target gastric cancer in tumor-bearing nude mice and higher T/H ratios than 188Re-GX1. 188Re-PEG-(GX1)2 inhibited the growth of Co-HUVEC and induced apoptosis, and its effects were more robust than those of 188Re-GX1. BLI showed that 188Re-PEG-(GX1)2 inhibited tumor proliferation in vivo with a stronger effect than 188Re-GX1. Compared with 188Re-GX1, 188Re-PEG-(GX1)2 suppressed tumor angiogenesis and tumor cell proliferation and induced tumor cell apoptosis in vivo. The 188Re-PEG-(GX1)2 group did not cause visible changes in liver and kidney morphology and function in vivo. CONCLUSION The dimer of GX1 was synthesized by using cross-linked PEG, and then 188Re-PEG-(GX1)2 was prepared. This radiopharmaceutical played both diagnostic and therapeutic functions, and gamma camera imaging could be utilized to detect the distribution of drugs in vivo during treatment. Through a series of experiments in vitro and in vivo, the feasibility of the drug was confirmed, and these results laid the foundation for the subsequent development and application of GX1.
Collapse
Affiliation(s)
- Jipeng Yin
- School of Biomedical Engineering, Fourth Military Medical University, Xi'an 710032, China; Clinical Medical Research Center, The 75th Group Army Hospital of PLA, Dali 671003, China
| | - Bo Xin
- Department of Oncology, No. 960 Hospital of PLA, Taian 271001, China
| | - Xiaoli Hui
- First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - Na Chai
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, China
| | - Liping Yao
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, China
| | - Hao Hu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, China
| | - Bing Xu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, China
| | - Wenhui Ma
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Mingru Zhang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, China
| | - Guangqing Zhou
- Clinical Medical Research Center, The 75th Group Army Hospital of PLA, Dali 671003, China
| | - Guanliang Wang
- Clinical Medical Research Center, The 75th Group Army Hospital of PLA, Dali 671003, China
| | - Liusheng Chen
- Clinical Medical Research Center, The 75th Group Army Hospital of PLA, Dali 671003, China.
| | - Hongbing Lu
- School of Biomedical Engineering, Fourth Military Medical University, Xi'an 710032, China.
| | - Kaichun Wu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, China.
| |
Collapse
|
2
|
Liu X, Du C, Li H, Jiang T, Luo Z, Pang Z, Geng D, Zhang J. Engineered superparamagnetic iron oxide nanoparticles (SPIONs) for dual-modality imaging of intracranial glioblastoma via EGFRvIII targeting. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1860-1872. [PMID: 31579072 PMCID: PMC6753680 DOI: 10.3762/bjnano.10.181] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
In this work, a peptide-modified, biodegradable, nontoxic, brain-tumor-targeting nanoprobe based on superparamagnetic iron oxide nanoparticles (SPIONs) (which have been commonly used as T 2-weighted magnetic resonance (MR) contrast agents) was successfully synthesized and applied for accurate molecular MR imaging and sensitive optical imaging. PEPHC1, a short peptide which can specifically bind to epidermal growth factor receptor variant III (EGFRvIII) that is overexpressed in glioblastoma, was conjugated with SPIONs to construct the nanoprobe. Both in vitro and in vivo MR and optical imaging demonstrated that the as-constructed nanoprobe was effective and sensitive for tumor targeting with desirable biosafety. Given its desirable properties such as a 100 nm diameter (capable of penetration of the blood-brain barrier) and bimodal imaging capability, this novel and versatile multimodal nanoprobe could bring a new perspective for elucidating intracranial glioblastoma preoperative diagnosis and the accuracy of tumor resection.
Collapse
Affiliation(s)
- Xianping Liu
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai 200040, China
| | - Chengjuan Du
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai 200040, China
| | - Haichun Li
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Ting Jiang
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Zimiao Luo
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Zhiqing Pang
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Daoying Geng
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai 200040, China
| | - Jun Zhang
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai 200040, China
| |
Collapse
|
3
|
Albumin-based nanoparticles as methylprednisolone carriers for targeted delivery towards the neonatal Fc receptor in glomerular podocytes. Int J Mol Med 2017; 39:851-860. [PMID: 28259932 PMCID: PMC5360426 DOI: 10.3892/ijmm.2017.2902] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 02/16/2017] [Indexed: 01/08/2023] Open
Abstract
Glucocorticoids (GCs) are commonly used in the treatment of nephrotic syndrome. However, high doses and long periods of GC therapy can result in severe side effects. The present study aimed to selectively deliver albumin-methylprednisolone (MP) nanoparticles towards glomerular podocytes, which highly express the specific neonatal Fc receptor (FcRn) of albumin. Bovine serum albumin (BSA) was labeled with a fluorescent dye and linked with modified MP via an amide bond. The outcome nanoparticle named BSA633-MP showed a uniform size with a diameter of approximately 10 nm and contained 12 drug molecules on average. The nanoconjugates were found to be stable at pH 7.4 and acid-sensitive at pH 4.0, with approximately 72% release of the MP drug after 48 h of incubation. The nanoparticle demonstrated a 36-fold uptake in receptor-specific cellular delivery in the FcRn-expressing human podocytes compared to the uptake in the non-FcRn-expressing control cells. Co-localization further confirmed that uptake of the nanoconjugates involved receptor-mediated endocytosis followed by lysosome associated transportation. In vitro cellular experiments indicated that the BSA633-MP ameliorated puromycin aminonucleoside-induced podocyte apoptosis. Moreover, in vivo fluorescence molecular imaging showed that BSA633-MP was mainly accumulated in the liver and kidney after intravenous dosing for 24 h. Collectively, this study may provide an approach for the effective and safe therapy of nephrotic syndrome.
Collapse
|