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Ou X, Zhang Z, Lin L, Du Y, Tang Y, Wang Y, Zou J. Tumor-homing bacterium-adsorbed liposomes encapsulating perfluorohexane/doxorubicin enhance pulsed-focused ultrasound for tumor therapy. RSC Adv 2023; 13:19065-19078. [PMID: 37362333 PMCID: PMC10288177 DOI: 10.1039/d3ra01876h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023] Open
Abstract
Objective: To make up for the insufficient ultrasound ablation of tumors, the energy output or synergist is increased but faces the big challenge of normal tissue damage. In this study, we report a tumor-homing bacterium, Bifidobacterium bifidum (B. bifidum), adsorbing liposomes that encapsulate perfluorohexane (PFH) and doxorubicin (DOX) to enhance the pulsed-focused ultrasound (PFUS) for tumor therapy, so as to improve the efficacy, safety and controllability of ultrasound treatment. Methods: The PFH and DOX co-loaded cationic liposomal nanoparticles (CL-PFH-DOX-NPs) were prepared for ultrasound (US) imaging, cell-killing, and B. bifidum adsorption for the reactive oxygen species (ROS) testing. The aggregation of B. bifidum and CL-PFH-DOX-NPs is called tumor-homing aggregation (B. bifidum@CL-PFH-DOX-NPs) in this study, and the synergistic effects of B. bifidum@CL-PFH-DOX-NPs were analyzed in vivo. Results: Comprehensive studies validated that CL-PFH-DOX-NPs can enhance US imaging and cell-killing and B. bifidum can promote ROS, and B. bifidum@CL-PFH-DOX-NPs achieve PFUS synergism in vivo. Importantly, active homing of B. bifidum facilitated the delivery and retention of CL-PFH-DOX-NPs in tumors, reducing dispersion in normal tissues, achieving the targeting ability of B. bifidum@CL-PFH-DOX-NPs. The best sonication time was chosen according to the distribution of CL-PFH-DOX-NPs in vivo to achieve efficient therapy. Especially, B. bifidum@CL-PFH-DOX-NPs amplified cavitation and the immune-boosting effects. Conclusion: Multifunctional B. bifidum@CL-PFH-DOX-NPs were successfully constructed with well targeting, which not only realized US imaging monitoring, strong cavitation and complementary killing during PFUS, but also achieved immunity enhancement after PFUS. The combination of PFUS, B. bifidum and CL-PFH-DOX-NPs provides a new idea for the potential application of ultrasound therapy in solid tumors.
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Affiliation(s)
- Xia Ou
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Zhong Zhang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Li Lin
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Yan Du
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Yu Tang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Yaotai Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Jianzhong Zou
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
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2
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Ma R, Pao P, Zhang K, Liu J, Zhang L. Ultrasound-guided puncture into newborn rat brain. IBRAIN 2023; 9:359-368. [PMID: 38680504 PMCID: PMC11045190 DOI: 10.1002/ibra.12103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 04/20/2023] [Accepted: 04/25/2023] [Indexed: 05/01/2024]
Abstract
Since the brain structure of neonatal rats was not fully formed during the first 4 days, it cannot be detected using ultrasound. The objective of this study was to investigate the use of ultrasound to guide puncture in the normal coronal brain structure and determine the puncture depth of the location of the cortex, hippocampus, lateral ventricle, and striatum of newborn rats of 5-15 days. The animal was placed in a prone position. The specific positions of the cortex, hippocampus, lateral ventricle, and striatum were measured under ultrasound. Then, the rats were punctured with a stereotaxic instrument, and dye was injected. Finally, the brains of rats were taken to make frozen sections to observe the puncture results. By ultrasound, the image of the cortex, hippocampus, lateral ventricle, and striatum of the rat can be obtained and the puncture depth of the cortex (8 days: 1.02 ± 0.12, 10 days: 1.02 ± 0.08, 13 days: 1.43 ± 0.05), hippocampus (8 days: 2.63 ± 0.07, 10 days: 2.77 ± 0.14, 13 days: 2.82 ± 0.09), lateral ventricle (8 days: 2.08 ± 0.04, 10 days: 2.26 ± 0.03, 13 days: 2.40 ± 0.06), and corpus striatum (8 days: 4.57 ± 0.09, 10 days: 4.94 ± 0.31, 13 days: 5.13 ± 0.10) can be accurately measured. The rat brain structure and puncture depth changed with the age of the rats. Ultrasound technology can not only clarify the brain structure characteristics of 5-15-day-old rats but also guide the puncture and injection of the rat brain structure. The results of this study laid the foundation for the future use of ultrasound in experimental animal models of neurological diseases.
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Affiliation(s)
- Rui‐Fang Ma
- Institute of NeuroscienceKunming Medical UniversityKunmingYunnanChina
| | - Ping‐Chieh Pao
- Picower Institute for Learning and Memory, Department of Brain and Cognitive SciencesMassachusetts Institute of TechnologyCambridgeMassachusettsUSA
| | - Kun Zhang
- Institute of UltrasoundShantou Ultrasonic Instrument Research Institute Co. Ltd.ShantouGuangdongChina
| | - Jin‐Xiang Liu
- Institute of NeuroscienceKunming Medical UniversityKunmingYunnanChina
| | - Lin Zhang
- Department of Obstetrics, The International Peace Maternity and Child Health Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
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Wang Y, Zhang Z, Ren L, Luo Y, Wang Q, Zou J. Dual mode imaging guided multi-functional bio-targeted oxygen production probes for tumor therapy. J Nanobiotechnology 2023; 21:142. [PMID: 37120558 PMCID: PMC10148460 DOI: 10.1186/s12951-023-01901-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/18/2023] [Indexed: 05/01/2023] Open
Abstract
Focused ultrasound ablation surgery (FUAS) is a novel therapy with a wide range of potential applications. However, synergists are crucial to the therapy process due to the ultrasonic energy's attenuation properties. As a result of the complex hypoxic environment in the tumor area and many factors, the existing synergists have limitations such as weak targeting, single imaging mode, and easy tumor recurrence after treatment. Because of the above deficiencies, this study intends to construct bio-targeted oxygen production probes consisting of Bifidobacterium that naturally target the hypoxia region of the tumor and multi-functional oxygen-producing nanoparticles equipped with IR780, perfluorohexane (PFH), CBP (carboplatin), and oxygen. The probes are expected to achieve targeted and synergistic FUAS therapy and dual-mode imaging to mediate tumor diagnosis and treatment. The oxygen and drugs carried in it are accurately released after FUAS stimulation, which is expected to alleviate tumor hypoxia, avoid tumor drug resistance, improve the effect of chemotherapy, and realize FUAS combined with chemotherapy antitumor therapy. This strategy is expected to make up for the deficiencies of existing synergists, improve the effectiveness and safety of treatment, and provide the foundation for future tumor therapy progress.
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Affiliation(s)
- Yaotai Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Zhong Zhang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Li Ren
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Yong Luo
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Qi Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Jianzhong Zou
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
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4
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Qin X, Cai P, Liu C, Chen K, Jiang X, Chen W, Li J, Jiao X, Guo E, Yu Y, Sun L, Tian H. Cardioprotective effect of ultrasound-targeted destruction of Sirt3-loaded cationic microbubbles in a large animal model of pathological cardiac hypertrophy. Acta Biomater 2023; 164:604-625. [PMID: 37080445 DOI: 10.1016/j.actbio.2023.04.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 04/22/2023]
Abstract
Pathological cardiac hypertrophy occurs in response to numerous increased afterload stimuli and precedes irreversible heart failure (HF). Therefore, therapies that ameliorate pathological cardiac hypertrophy are urgently required. Sirtuin 3 (Sirt3) is a main member of histone deacetylase class III and is a crucial anti-oxidative stress agent. Therapeutically enhancing the Sirt3 transfection efficiency in the heart would broaden the potential clinical application of Sirt3. Ultrasound-targeted microbubble destruction (UTMD) is a prospective, noninvasive, repeatable, and targeted gene delivery technique. In the present study, we explored the potential and safety of UTMD as a delivery tool for Sirt3 in hypertrophic heart tissues using adult male Bama miniature pigs. Pigs were subjected to ear vein delivery of human Sirt3 together with UTMD of cationic microbubbles (CMBs). Fluorescence imaging, western blotting, and quantitative real-time PCR revealed that the targeted destruction of ultrasonic CMBs in cardiac tissues greatly boosted Sirt3 delivery. Overexpression of Sirt3 ameliorated oxidative stress and partially improved the diastolic function and prevented the apoptosis and profibrotic response. Lastly, our data revealed that Sirt3 may regulate the potential transcription of catalase and MnSOD through Foxo3a. Combining the advantages of ultrasound CMBs with preclinical hypertrophy large animal models for gene delivery, we established a classical hypertrophy model as well as a strategy for the targeted delivery of genes to hypertrophic heart tissues. Since oxidative stress, fibrosis and apoptosis are indispensable in the evolution of cardiac hypertrophy and heart failure, our findings suggest that Sirt3 is a promising therapeutic option for these diseases. STATEMENT OF SIGNIFICANCE: : Pathological cardiac hypertrophy is a central prepathology of heart failure and is seen to eventually precede it. Feasible targets that may prevent or reverse disease progression are scarce and urgently needed. In this study, we developed surface-filled lipid octafluoropropane gas core cationic microbubbles that could target the release of human Sirt3 reactivating the endogenous Sirt3 in hypertrophic hearts and protect against oxidative stress in a pig model of cardiac hypertrophy induced by aortic banding. Sirt3-CMBs may enhance cardiac diastolic function and ameliorate fibrosis and apoptosis. Our work provides a classical cationic lipid-based, UTMD-mediated Sirt3 delivery system for the treatment of Sirt3 in patients with established cardiac hypertrophy, as well as a promising therapeutic target to combat pathological cardiac hypertrophy.
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Affiliation(s)
- Xionghai Qin
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Peian Cai
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Chang Liu
- Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Kegong Chen
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Xingpei Jiang
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Wei Chen
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Jiarou Li
- Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Xuan Jiao
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Erliang Guo
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin 150081, China
| | - Yixiu Yu
- Department of Stomatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Lu Sun
- Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Hai Tian
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China; Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China.
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5
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Tang R, He H, Lin X, Wu N, Wan L, Chen Q, Hu Y, Cheng C, Cao Y, Guo X, Zhou Y, Xiong X, Zheng M, Wang Q, Li F, Zhou Y, Li P. Novel combination strategy of high intensity focused ultrasound (HIFU) and checkpoint blockade boosted by bioinspired and oxygen-supplied nanoprobe for multimodal imaging-guided cancer therapy. J Immunother Cancer 2023; 11:jitc-2022-006226. [PMID: 36650023 PMCID: PMC9853265 DOI: 10.1136/jitc-2022-006226] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND High-intensity focused ultrasound (HIFU) has shown considerable promise in treating solid tumors, but its ultrasonic energy is easily attenuated, resulting in insufficient energy accumulation in the target area. Moreover, HIFU ablation alone may inevitably lead to the presence of residual tumors, which may cause tumor recurrence and metastasis. Here, we describe a synergistic regimen combining HIFU facilitation with immunomodulation based on a novel oxygen-carrying biomimetic perfluorocarbon nanoparticle (M@P-SOP) to stimulate immunogenic cell death in tumor cells while alleviating immune suppression tumor microenvironment. METHODS M@P-SOP was prepared by double emulsion and film extrusion method. The anticancer and antimetastatic effects of M@P-SOP were evaluated on a preclinical transplanted 4T1 tumor model by combining HIFU and immunotherapy. Flow cytometry and immunofluorescence were used to clarify the potential mechanism of HIFU+M@P-SOP and their role in anti-programmed death ligand-1 (PD-L1) therapy. RESULTS Guided by photoacoustic/MR/ultrasound (US) multimodal imaging, M@P-SOP was abundantly enriched in tumor, which greatly enhanced HIFU's killing of tumor tissue in situ, induced stronger tumor immunogenic cell death, stimulated dendritic cell maturation and activated CD8+ T cells. At the same time, M@P-SOP released oxygen to alleviate the tumor hypoxic environment, repolarizing the protumor M2-type macrophages into antitumor M1-type. With concurrent anti-PD-L1 treatment, the antitumor immune response was further amplified to the whole body, and the growth of mimic distant tumor was effectively suppressed. CONCLUSIONS Our findings offer a highly promising HIFU synergist for effectively ameliorating acoustic and hypoxia environment, eventually inhibiting tumor growth and metastasis by stimulating host's antitumor immunity under HIFU ablation, especially in synergizing with PD-L1 antibody immunotherapy.
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Affiliation(s)
- Rui Tang
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Hongye He
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Xiaohong Lin
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China,Department of Ultrasound, Chongqing General Hospital, Chongqing, China
| | - Nianhong Wu
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Li Wan
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Qiaoqi Chen
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Yaqin Hu
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Chen Cheng
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Yuting Cao
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Xun Guo
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Ying Zhou
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Xialin Xiong
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Min Zheng
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Qi Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China
| | - Faqi Li
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China
| | - Yang Zhou
- Department of ultrasound, The Third People's Hospital of Chengdu City, Chengdu, People's Republic of China
| | - Pan Li
- Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China,Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
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6
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Jiang F, Wang L, Tang Y, Wang Y, Li N, Wang D, Zhang Z, Lin L, Du Y, Ou X, Zou J. US/MR Bimodal Imaging-Guided Bio-Targeting Synergistic Agent for Tumor Therapy. Int J Nanomedicine 2022; 17:2943-2960. [PMID: 35814614 PMCID: PMC9270014 DOI: 10.2147/ijn.s363645] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/26/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Breast cancer is detrimental to the health of women due to the difficulty of early diagnosis and unsatisfactory therapeutic efficacy of available breast cancer therapies. High intensity focused ultrasound (HIFU) ablation is a new method for the treatment of breast tumors, but there is a problem of low ablation efficiency. Therefore, the improvement of HIFU efficiency to combat breast cancer is immediately needed. This study aimed to describe a novel anaerobic bacteria-mediated nanoplatform, comprising synergistic HIFU therapy for breast cancer under guidance of ultrasound (US) and magnetic resonance (MR) bimodal imaging. Methods The PFH@CL/Fe3O4 nanoparticles (NPs) (Perfluorohexane (PFH) and superparamagnetic iron oxides (SPIO, Fe3O4) with cationic lipid (CL) NPs) were synthesized using the thin membrane hydration method. The novel nanoplatform Bifidobacterium bifidum-mediated PFH@CL/Fe3O4 NPs were constructed by electrostatic adsorption. Thereafter, US and MR bimodal imaging ability of B. bifidum-mediated PFH@CL/Fe3O4 NPs was evaluated in vitro and in vivo. Finally, the efficacy of HIFU ablation based on B. bifidum-PFH@CL/Fe3O4 NPs was studied. Results B. bifidum combined with PFH@CL/Fe3O4 NPs by electrostatic adsorption and enhanced the tumor targeting ability of PFH@CL/Fe3O4 NPs. US and MR bimodal imaging clearly displayed the distribution of the bio-targeting nanoplatform in vivo. It was conducive for accurate and effective guidance of HIFU synergistic treatment of tumors. Furthermore, PFH@CL/Fe3O4 NPs could form microbubbles by acoustic droplet evaporation and promote efficiency of HIFU ablation under guidance of bimodal imaging. Conclusion A bio-targeting nanoplatform with high stability and good physicochemical properties was constructed. The HIFU synergistic agent achieved early precision imaging of tumors and promoted therapeutic effect, monitored by US and MR bimodal imaging during the treatment process.
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Affiliation(s)
- Fujie Jiang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
- Department of Radiology, Chongqing University Cancer Hospital, School of Medicine, Chongqing University, Chongqing, People’s Republic of China
| | - Lu Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Yu Tang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Yaotai Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Ningshan Li
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
- Department of Ultrasound, Xinqiao Hospital of Army Medical University, Chongqing, People’s Republic of China
| | - Disen Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Zhong Zhang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Li Lin
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Yan Du
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Xia Ou
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Jianzhong Zou
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
- Correspondence: Jianzhong Zou, State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China, Tel +86-13708302390, Email
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7
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Peng X, Han Q, Zhou X, Chen Y, Huang X, Guo X, Peng R, Wang H, Peng X, Cheng L. Effect of pH-sensitive nanoparticles on inhibiting oral biofilms. Drug Deliv 2022; 29:561-573. [PMID: 35156501 PMCID: PMC8856036 DOI: 10.1080/10717544.2022.2037788] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Dental caries is a biofilm-related preventable infectious disease caused by interactions between the oral bacteria and the host’s dietary sugars. As the microenvironments in cariogenic biofilms are often acidic, pH-sensitive drug delivery systems have become innovative materials for dental caries prevention in recent years. In the present study, poly(DMAEMA-co-HEMA) was used as a pH-sensitive carrier to synthesize a chlorhexidine (CHX)-loaded nanomaterial (p(DH)@CHX). In vitro, p(DH)@CHX exhibited good pH sensitivity and a sustained and high CHX release rate in the acidic environment. It also exhibited lower cytotoxicity against human oral keratinocytes (HOKs) compared to free CHX. Besides, compared with free CHX, p(DH)@CHX showed the same antibacterial effects on S. mutans biofilms. In addition, it had no effect on eradicating healthy saliva-derived biofilm, while free CHX exhibited an inhibitory effect. Furthermore, the 16s rDNA sequencing results showed that p(DH)@CHX had the potential to alter oral microbiota composition and possibly reduce caries risk. In conclusion, the present study presents an alternative option to design an intelligent material to prevent and treat dental caries.
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Affiliation(s)
- Xinyu Peng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Qi Han
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Oral Pathology, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yanyan Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoyu Huang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Xiao Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Ruiting Peng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Haohao Wang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Xian Peng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
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8
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Li Y, Zhang R, Xu Z, Wang Z. Advances in Nanoliposomes for the Diagnosis and Treatment of Liver Cancer. Int J Nanomedicine 2022; 17:909-925. [PMID: 35250267 PMCID: PMC8893038 DOI: 10.2147/ijn.s349426] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/26/2022] [Indexed: 12/12/2022] Open
Abstract
The mortality rate of liver cancer is gradually increasing worldwide due to the increasing risk factors such as fatty liver, diabetes, and alcoholic cirrhosis. The diagnostic methods of liver cancer include ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI), among others. The treatment of liver cancer includes surgical resection, transplantation, ablation, and chemoembolization; however, treatment still faces multiple challenges due to its insidious development, high rate of recurrence after surgical resection, and high failure rate of transplantation. The emergence of liposomes has provided new insights into the treatment of liver cancer. Due to their excellent carrier properties and maneuverability, liposomes can be used to perform a variety of functions such as aiding in imaging diagnoses, combinatorial therapies, and integrating disease diagnosis and treatment. In this paper, we further discuss such advantages.
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Affiliation(s)
- Yitong Li
- NHC Key Laboratory of Radiobiology (Jilin University), School of Public Health, Jilin University, Changchun, 130021, Jilin, People’s Republic of China
| | - Ruihang Zhang
- Second Clinical Medical College, Henan University of Traditional Chinese Medicine, Zhengzhou, 450052, Henan, People’s Republic of China
| | - Zhen Xu
- NHC Key Laboratory of Radiobiology (Jilin University), School of Public Health, Jilin University, Changchun, 130021, Jilin, People’s Republic of China
| | - Zhicheng Wang
- NHC Key Laboratory of Radiobiology (Jilin University), School of Public Health, Jilin University, Changchun, 130021, Jilin, People’s Republic of China
- Correspondence: Zhicheng Wang, NHC Key Laboratory of Radiobiology (Jilin University), School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, Jilin, People’s Republic of China, Tel +86 13843131059, Fax +86 431185619443, Email
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Zhang H, Zhang Y, Xu M, Song X, Chen S, Jian X, Ming D. The Effects of the Structural and Acoustic Parameters of the Skull Model on Transcranial Focused Ultrasound. SENSORS 2021; 21:s21175962. [PMID: 34502853 PMCID: PMC8434628 DOI: 10.3390/s21175962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/02/2021] [Accepted: 09/02/2021] [Indexed: 01/02/2023]
Abstract
Transcranial focused ultrasound (tFUS) has great potential in brain imaging and therapy. However, the structural and acoustic differences of the skull will cause a large number of technical problems in the application of tFUS, such as low focus energy, focal shift, and defocusing. To have a comprehensive understanding of the skull effect on tFUS, this study investigated the effects of the structural parameters (thickness, radius of curvature, and distance from the transducer) and acoustic parameters (density, acoustic speed, and absorption coefficient) of the skull model on tFUS based on acrylic plates and two simulation methods (self-programming and COMSOL). For structural parameters, our research shows that as the three factors increase the unit distance, the attenuation caused from large to small is the thickness (0.357 dB/mm), the distance to transducer (0.048 dB/mm), and the radius of curvature (0.027 dB/mm). For acoustic parameters, the attenuation caused by density (0.024 dB/30 kg/m3) and acoustic speed (0.021 dB/30 m/s) are basically the same. Additionally, as the absorption coefficient increases, the focus acoustic pressure decays exponentially. The thickness of the structural parameters and the absorption coefficient of the acoustic parameters are the most important factors leading to the attenuation of tFUS. The experimental and simulation trends are highly consistent. This work contributes to the comprehensive and quantitative understanding of how the skull influences tFUS, which further enhances the application of tFUS in neuromodulation research and treatment.
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Affiliation(s)
- Hao Zhang
- Laboratory of Neural Engineering and Rehabilitation, Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China; (H.Z.); (M.X.); (S.C.)
| | - Yanqiu Zhang
- School of Biomedical Engineering and Technology, Tianjin Medical University, Tianjin 300070, China; (Y.Z.); (X.J.)
| | - Minpeng Xu
- Laboratory of Neural Engineering and Rehabilitation, Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China; (H.Z.); (M.X.); (S.C.)
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China;
| | - Xizi Song
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China;
| | - Shanguang Chen
- Laboratory of Neural Engineering and Rehabilitation, Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China; (H.Z.); (M.X.); (S.C.)
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China;
- National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing 100094, China
| | - Xiqi Jian
- School of Biomedical Engineering and Technology, Tianjin Medical University, Tianjin 300070, China; (Y.Z.); (X.J.)
| | - Dong Ming
- Laboratory of Neural Engineering and Rehabilitation, Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China; (H.Z.); (M.X.); (S.C.)
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China;
- Correspondence:
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Polyethylenimine (PEI)-modified poly (lactic-co-glycolic) acid (PLGA) nanoparticles conjugated with tumor-homing bacteria facilitate high intensity focused ultrasound-mediated tumor ablation. Biochem Biophys Res Commun 2021; 571:104-109. [PMID: 34314995 DOI: 10.1016/j.bbrc.2021.07.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 07/17/2021] [Indexed: 01/06/2023]
Abstract
The acoustic propagation characteristic of ultrasound determines that the energy of ultrasound beam will decrease with the increase of its propagation depth in the body. Similarly, the energy of High Intensity Focused Ultrasound (HIFU) will be attenuated with the increase of HIFU propagation depth in the body. Ensuring sufficient ultrasound energy deposition in the HIFU ablation region for tumor ablation is usually achieved by increasing the ultrasound irradiation power or prolonging the ultrasound ablation time. However, these two methods may damage the normal tissue adjacent to the HIFU ablation region. Herein, we constructed the nanoparticles conjugated with tumor-homing bacteria as the biological tumor-homing synergist to facilitate HIFU-mediated tumor ablation avoiding the potential safety risk. In our strategy, Bifidobacterium bifidum (B.bifidum) was selectively colonized in the hypoxic region of solid tumors after been injected into 4T1 breast cancer bearing-BALB/c mice via the tail vein due to its anaerobic growth characteristic. The amount of B. bifidum with negative surface potential in the hypoxic region of solid tumors was increased by its anaerobic proliferation. Polyethylenimine (PEI) -modified Poly (lactic-co-glycolic) acid nanoparticles loaded sodium bicarbonate (PEI-PLGA-NaHCO3-NPs) with positive surface potential injected into 4T1 breast cancer bearing-BALB/c mice via the tail vein displayed the tumor-homing ability by the electrostatic adsorption with B. bifidum colonized solid tumors. PEI-PLGA-NaHCO3-NPs could release NaHCO3 to produce carbon dioxide (CO2) as cavitation nuclei inside the acidic microenvironment of solid tumors. When HIFU irradiated solid tumors contained with more cavitation nuclei, the ultrasound energy deposition at the tumor region was increased to destroy the tumors more effectively. Meanwhile, the improved efficiency of HIFU-mediated tumor ablation reduced the dependence of the tumor ablation on the ultrasound energy dose, which improved the safety of HIFU-mediated tumor ablation to the non-targeted ablation tissue. This tumor-homing synergist shows the potential application value on the HIFU-mediated tumor ablation in the clinical.
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Jiang F, Yang H, Wang L, Wang Y, Tang Y, Wang D, Wang Q, Zou J. [ Escherichia coli expressing gas vesicles is safe for enhancing the ablation effect of highintensity focused ultrasound in tumor-bearing mice]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:649-656. [PMID: 34134950 DOI: 10.12122/j.issn.1673-4254.2021.05.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect and safety of Escherichia coli (E.coli) expressing gas vesicle (GVs) for enhancing the efficacy of tumor ablation by high intensity focused ultrasound (HIFU) in tumor-bearing mice. OBJECTIVE Thirty-two female BALB/c mice were used to establish mouse models bearing 4T1 tumor, which were randomized into GVs group [E.coli BL21 (AI)-PET28a-Arg1] and control group (PBS), and the efficacy of HIFU ablation was evaluated by examining coagulative necrotic volume and pathology of the tumors. Another 104 BALB/c mice were also randomly divided into GVs group and control group, and body weight changes of the mice were recorded on days 1, 4 and 15 after intravenous injection of E.coli containing GVs or PBS. White blood cells, red blood cells, hemoglobin and platelet counts and liver and renal function parameters of the mice were detected, and serum levels of TNF-α and IL-1β were examined using ELISA. The pathological changes in the liver and spleen were evaluated using HE staining to assess the safety of the treatments. OBJECTIVE HIFU ablation resulted in a significantly greater volume of coagulative necrosis and severer tissue damage in GVs group than in the control group (P < 0.001). In the 104 BALB/c mice without tumor cell inoculation, intravenous injection of E.coli expressing GVs, as compared with PBS, did not significantly affect body weight or cause changes in white blood cell, red blood cell and platelet counts or hemoglobin level (P1=0.59, P2=0.27, P3=0.76, P4=0.81). The liver and kidney function parameters (P1=0.12, P2=0.46, P3=0.62, P4=0.86) and serum levels of TNF-α and IL-1β (P1=0.48, P2=0.56) were all comparable between GVs group and control group. No obvious pathological changes were detected in the liver and spleen tissues in either GVs group or the control group. OBJECTIVE E.coli expressing GVs is safe for enhancing the ablation effect of HIFU in tumor-bearing mice.
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Affiliation(s)
- F Jiang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - H Yang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - L Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Y Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Y Tang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - D Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Q Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - J Zou
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
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Yang H, Jiang F, Zhang L, Wang L, Luo Y, Li N, Guo Y, Wang Q, Zou J. Multifunctional l-arginine-based magnetic nanoparticles for multiple-synergistic tumor therapy. Biomater Sci 2021; 9:2230-2243. [PMID: 33507174 DOI: 10.1039/d0bm01932a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tumor therapy is facing the big challenge of insufficient treatment. Here, we report high-intensity focused ultrasound (HIFU)-responsive magnetic nanoparticles based on superparamagnetic iron oxide (SPIO, Fe3O4 NPs) as the shell and l-arginine (LA) as the core entrapped by poly-lactide-co-glycolide (PLGA) nanoparticles (Fe3O4@PLGA/LA NPs) for synergistic breast cancer therapy. These NPs can significantly enhance therapeutic performance due to their enhanced accumulation and prolonged retention at the tumor site under magnetic guidance. The Fe3O4@PLGA/LA NPs exhibited synergistic therapeutic effects by the rational combination of HIFU-based tumor ablation and nitric oxide (NO) assisted antitumor gas therapy. Both Fe3O4 NPs and LA could be released rapidly under HIFU irradiation, where Fe3O4 NPs can promote HIFU-based tumor ablation by changing the acoustic properties of the tumor tissues and LA can spontaneously react with hydrogen peroxide (H2O2) in the tumor microenvironment to generate NO for gas therapy. Moreover, Fe3O4 NPs can react with H2O2 to produce highly reactive oxygen-containing species (ROS) to accelerate the oxidation of LA and the release of NO. This novel strategy showed synergistic tumor growth suppression as compared with individual HIFU therapy or gas therapy. This can be attributed to the rational design of multifunctional NPs with magnetic targeting and multi-modality imaging properties.
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Affiliation(s)
- Haiyan Yang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China.
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Yang H, Jiang F, Ji X, Wang L, Wang Y, Zhang L, Tang Y, Wang D, Luo Y, Li N, Wang Q, Zou J. Genetically Engineered Bacterial Protein Nanoparticles for Targeted Cancer Therapy. Int J Nanomedicine 2021; 16:105-117. [PMID: 33447030 PMCID: PMC7802776 DOI: 10.2147/ijn.s292432] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 12/23/2020] [Indexed: 12/30/2022] Open
Abstract
PURPOSE Cancer treatment still faces big challenges in the clinic, which is raising concerns over the world. In this study, we report the novel strategy of combing bacteriotherapy with high-intensity focused ultrasound (HIFU) therapy for more efficient breast cancer treatment. METHODS The acoustic reporter gene (ARG) was genetically engineered to be expressed successfully in Escherichia coli (E. coli) to produce the protein nanoparticles-gas vesicles (GVs). Ultrasound was utilized to visualize the GVs in E. coli. In addition, it was injected intravenously for targeted breast cancer therapy by combing the bacteriotherapy with HIFU therapy. RESULTS ARG expressed in E. coli can be visualized in vitro and in vivo by ultrasound. After intravenous injection, E. coli containing GVs could specifically target the tumor site, colonize consecutively in the tumor microenvironment, and it could obviously inhibit tumor growth. Meanwhile, E. coli which contained GVs could synergize HIFU therapy efficiently both in vitro and in vivo as the cavitation nuclei. Furthermore, the tumor inhibition rate in the combination therapy group could be high up to 87% compared with that in the control group. CONCLUSION Our novel strategy of combing bacteriotherapy with HIFU therapy can treat breast cancers more effectively than the monotherapies, so it can be seen as a promising strategy.
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Affiliation(s)
- Haiyan Yang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Fujie Jiang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Xiaojuan Ji
- Department of Ultrasound, Children’s Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical and Research Center of Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing400016, People’s Republic of China
| | - Lu Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Yaotai Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Liang Zhang
- Institute of Ultrasound Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing400010, People’s Republic of China
| | - Yu Tang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Disen Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Yong Luo
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Ningshan Li
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Qi Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Jianzhong Zou
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing400016, People’s Republic of China
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Calderan L, Malatesta M. Imaging techniques in nanomedical research. Eur J Histochem 2020; 64. [PMID: 32613820 PMCID: PMC7341075 DOI: 10.4081/ejh.2020.3151] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022] Open
Abstract
About twenty years ago, nanotechnology began to be applied to biomedical issues giving rise to the research field called nanomedicine. Thus, the study of the interactions between nanomaterials and the biological environment became of primary importance in order to design safe and effective nanoconstructs suitable for diagnostic and/or therapeutic purposes. Consequently, imaging techniques have increasingly been used in the production, characterisation and preclinical/clinical application of nanomedical tools. This work aims at making an overview of the microscopy and imaging techniques in vivo and in vitro in their application to nanomedical investigation, and to stress their contribution to this developing research field.
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Affiliation(s)
- Laura Calderan
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona.
| | - Manuela Malatesta
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona.
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