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Ge C, Chen Z, Sun H, Sun P, Zhao J, Wu Y, Xu J, Zhou M, Luan M. Visually evaluating drug efficacy in living cells using COF-based fluorescent nanoprobe via CHA amplified detection of miRNA and simultaneous apoptosis imaging. Anal Chim Acta 2024; 1302:342502. [PMID: 38580409 DOI: 10.1016/j.aca.2024.342502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 04/07/2024]
Abstract
BACKGROUNDS Cancer is a highly fatal disease which is close relative of miRNA aberrant expression and apoptosis disorders. Elucidation of the therapeutic efficacy through investigating the changes in miRNA and apoptosis holds immense importance in advancing the development of miRNA-based precision therapy. However, it remains a challenge as how to visually evaluate the efficacy during protocol optimization of miRNA-based anticancer drugs at the cellular level. Therefore, exploring effective and noninvasive methods for real-time monitoring of therapeutic efficacy in living cells is of great significance. RESULTS Herein, we reported a novel fluorescent nanoprobe COF-H1/H2-Peptide for visually evaluating drug efficacy in living cells through amplified imaging of low-abundant miRNA-221 with catalytic hairpin assembly (CHA) circle amplification, as well as simultaneous caspase-3 imaging. With strong stability and good biocompatibility, this newly fabricated amplified nanoprobe showed high sensitivity and specificity for the detection of miRNA-221 and caspase-3, and the limit of detection (LOD) of miRNA-221 was as low as 2.79 pM. The fluorescent imaging results showed that this amplified nanoprobe could not only detect caspase-3 in living cells, but also effectively detect low levels of miRNA-221 with increasing anticancer drug concentration and treatment time. The smart nanoprobe had effective performance for optimizing miRNA-based drug treatment schedules by dual-color fluorescence imaging. SIGNIFICANCE This nanoprobe combined CHA amplified detection of intracellular miRNA-221 and synchronous apoptosis imaging, with excellent sensitivity for the detection of cellular low-level miRNA, enabling the realization of real-time assessment of the efficacy of miRNA-based therapy in living cells. This work presents a promising approach for revealing the regulatory mechanisms between miRNAs and apoptosis in cancer occurrence, development, and treatment.
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Affiliation(s)
- Chuandong Ge
- Institute for Functional Biomolecules, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China
| | - Zhe Chen
- Institute for Functional Biomolecules, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China
| | - Heming Sun
- Institute for Functional Biomolecules, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China
| | - Ping Sun
- Institute for Functional Biomolecules, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China
| | - Jiayin Zhao
- Textile Industrial Products Testing Center of Nanjing Customs District, Wuxi, 214101, PR China
| | - Yanjuan Wu
- Institute for Functional Biomolecules, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China
| | - Jing Xu
- Institute for Functional Biomolecules, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China
| | - Mingyang Zhou
- Institute for Functional Biomolecules, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China.
| | - Mingming Luan
- Institute for Functional Biomolecules, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China.
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So IS, Kang JH, Hong JW, Sung S, Hasan AF, Sa KH, Han SW, Kim IS, Kang YM. A novel apoptosis probe, cyclic ApoPep-1, for in vivo imaging with multimodal applications in chronic inflammatory arthritis. Apoptosis 2021; 26:209-218. [PMID: 33655467 DOI: 10.1007/s10495-021-01659-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2021] [Indexed: 11/26/2022]
Abstract
Apoptosis plays an essential role in the pathophysiologic processes of rheumatoid arthritis. A molecular probe that allows spatiotemporal observation of apoptosis in vitro, in vivo, and ex vivo concomitantly would be useful to monitoring or predicting pathophysiologic stages. In this study we investigated whether cyclic apoptosis-targeting peptide-1 (CApoPep-1) can be used as an apoptosis imaging probe in inflammatory arthritis. We tested the utility of CApoPep-1 for detecting apoptotic immune cells in vitro and ex vivo using flow cytometry and immunofluorescence. The feasibility of visualizing and quantifying apoptosis using this probe was evaluated in a murine collagen-induced arthritis (CIA) model, especially after treatment. CApoPep-1 peptide may successfully replace Annexin V for in vitro and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay for ex vivo in the measurement of apoptotic cells, thus function as a sensitive probe enough to be used clinically. In vivo imaging in CIA mice revealed that CApoPep-1 had 42.9 times higher fluorescence intensity than Annexin V for apoptosis quantification. Furthermore, it may be used as an imaging probe for early detection of apoptotic response in situ after treatment. The CApoPep-1 signal was mostly co-localized with the TUNEL signal (69.6% of TUNEL+ cells) in defined cell populations in joint tissues of CIA mice. These results demonstrate that CApoPep-1 is sufficiently sensitive to be used as an apoptosis imaging probe for multipurpose applications which could detect the same target across in vitro, in vivo, to ex vivo in inflammatory arthritis.
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Affiliation(s)
- In-Seop So
- Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
- Cell and Matrix Research Institute, Kyungpook National University, Daegu, Republic of Korea
| | - Jin Hee Kang
- Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
- Cell and Matrix Research Institute, Kyungpook National University, Daegu, Republic of Korea
- Department of Biochemistry and Cell Biology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Jung Wan Hong
- Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
- Cell and Matrix Research Institute, Kyungpook National University, Daegu, Republic of Korea
| | - Shijin Sung
- Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
- Cell and Matrix Research Institute, Kyungpook National University, Daegu, Republic of Korea
- Department of Biochemistry and Cell Biology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Al Faruque Hasan
- Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
- Cell and Matrix Research Institute, Kyungpook National University, Daegu, Republic of Korea
- Department of Biochemistry and Cell Biology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Keum Hee Sa
- Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
- Cell and Matrix Research Institute, Kyungpook National University, Daegu, Republic of Korea
- Department of Biochemistry and Cell Biology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Seung Woo Han
- Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
| | - In San Kim
- Cell and Matrix Research Institute, Kyungpook National University, Daegu, Republic of Korea
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Young Mo Kang
- Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea.
- Cell and Matrix Research Institute, Kyungpook National University, Daegu, Republic of Korea.
- Department of Biochemistry and Cell Biology, Kyungpook National University School of Medicine, Daegu, Republic of Korea.
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Croft LV, Mulders JA, Richard DJ, O'Byrne K. Digital Holographic Imaging as a Method for Quantitative, Live Cell Imaging of Drug Response to Novel Targeted Cancer Therapies. Methods Mol Biol 2019; 2054:171-83. [PMID: 31482456 DOI: 10.1007/978-1-4939-9769-5_12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Digital holographic imaging (DHI) is a noninvasive, live cell imaging technique that enables long-term quantitative visualization of cells in culture. DHI uses phase-shift imaging to monitor and quantify cellular events such as cell division, cell death, cell migration, and drug responses. In recent years, the application of DHI has expanded from its use in the laboratory to the clinical setting, and currently it is being developed for use in theranostics. Here, we describe the use of the DHI platform HoloMonitorM4 to evaluate the effects of novel, targeted cancer therapies on cell viability and proliferation using the HeLa cancer cell line as a model. We present single cell tracking and population-wide analysis of multiple cell morphology parameters.
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Rapic S, Vangestel C, Elvas F, Verhaeghe J, den Wyngaert TV, Wyffels L, Pauwels P, Staelens S, Stroobants S. Evaluation of [ 18F]CP18 as a Substrate-Based Apoptosis Imaging Agent for the Assessment of Early Treatment Response in Oncology. Mol Imaging Biol 2017; 19:560-9. [PMID: 28050749 DOI: 10.1007/s11307-016-1037-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE The substrate-based positron emission tomography (PET) tracer [18F]CP18 is capable of detecting the activity of caspase-3/7, two key executioner proteases in the apoptosis pathway, through selective cleavage of the ligand by the activated proteases and subsequent accumulation in apoptotic cells. Using an in vitro and in vivo model of colorectal cancer (CRC), we investigated whether [18F]CP18 tracer accumulation provides a measure for apoptosis and reliably reflects early treatment response to chemotherapeutics. PROCEDURES [18F]CP18 cell uptake was assessed in treated Colo205 cells (saline, 5-fluorouracil (5-FU), irinotecan or their combination) and correlated with caspase-3/7 activity. [18F]CP18 imaging was performed in Colo205 xenografts, starting with a baseline μPET/micro X-ray computed tomography (μCT) scan, followed by a 3-day treatment with saline (n = 5), 5-FU (low sensitivity, n = 4), irinotecan (high sensitivity, n = 5), or a combination of both (n = 7). The study was concluded with a second [18F]CP18 scan, 24 h after final treatment administration, followed by tumor removal for gamma counting (%ID/g) and for cleaved caspase-3 immunohistochemistry (apoptotic index/necrosis). Tumors were delineated on μCT images and, using the obtained volumes of interest, average percentage injected dose per cubic centimeter (%ID/cm3) was calculated from every μPET image. RESULTS In vitro, [18F]CP18 cell uptake was positively correlated with caspase-3/7 activity (r = 0.59, p = 0.003). A drug-dependent increase in [18F]CP18 tumor uptake compared to baseline was observed in animals treated with 5-FU (+14 ± 25 %), irinotecan (+56 ± 54 %), and their combination (+158 ± 69 %, p = 0.002). %ID/cm3 showed a positive relationship with both %ID/g (r = 0.83, p < 0.0001) and the apoptotic index (r = 0.60, p = 0.004), but not with tumor necrosis (r = 0.22, p = 0.36). CONCLUSION Both our in vitro and in vivo findings have shown the ability of [18F]CP18-PET to visualize therapy-induced cancer cell apoptosis and possibly serve as a biomarker for early therapy response.
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Han J, Wang X, Yu M. Cu 2+-labeled dansyl compounds as fluorescent and PET probes for imaging apoptosis. Bioorg Med Chem Lett 2016; 26:5594-6. [PMID: 27780640 DOI: 10.1016/j.bmcl.2016.09.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/22/2016] [Accepted: 09/23/2016] [Indexed: 11/21/2022]
Abstract
Compound DNSTT-Cu2+, a novel chelate of Cu2+ with DOTA conjugated to a fluorescent dansyl fragment, is developed for imaging cell apoptosis. Apoptotic U-87MG cells could be selectively visualized by the fluorescence of DNSTT-Cu2+ from cytoplasm of cells, confirmed by the fluorescence of apoptosis cells co-labeled with Alexa Fluor 568-labeled annexin V, a conventional probe for selectively labeling membranes of apoptosis cells. A radioactive 64Cu2+ analog, DNSTT-64Cu2+, was easily synthesized, providing a potential PET probe for imaging apoptosis in vivo.
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