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Yu L, Liu X, Zhao S, Zhu W, Wu L, Ding C. H-Aggregation of Squaraine Dye as Generic Colorimetric Molecules to Detect Cu 2. APPLIED SPECTROSCOPY 2024:37028241254391. [PMID: 38772555 DOI: 10.1177/00037028241254391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
An infrared squaraine dye was utilized to detect Cu2+ in solvents based on H-aggregates of squaraine dye. H-aggregates are a type of aggregation with enhanced photophysical properties compared to monomers. In the presence of a Ca2+ solution, F-Cl offers exceptional H-aggregators that can be transformed into monomers by adding Cu2+. Furthermore, this mode successfully demonstrated fluorescence changes in HeLa cells cultured in vitro after the addition of Ca2+ or Cu2+. A highly specific detection of Cu2+ was achieved using this transformation mode.
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Affiliation(s)
- Lijia Yu
- National Center for Occupational Safety and Health, National Center for Occupational Medicine of Coal Industry, NHC, Beijing, China
| | - Xi Liu
- National Center for Occupational Safety and Health, National Center for Occupational Medicine of Coal Industry, NHC, Beijing, China
| | - Shuhua Zhao
- National Center for Occupational Safety and Health, National Center for Occupational Medicine of Coal Industry, NHC, Beijing, China
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Wenxuan Zhu
- National Center for Occupational Safety and Health, National Center for Occupational Medicine of Coal Industry, NHC, Beijing, China
- School of Public Health, Hengyang Medical College, University of South China, Hengyang, China
| | - Lina Wu
- National Center for Occupational Safety and Health, National Center for Occupational Medicine of Coal Industry, NHC, Beijing, China
| | - Chunguang Ding
- National Center for Occupational Safety and Health, National Center for Occupational Medicine of Coal Industry, NHC, Beijing, China
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2
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Zhou ZH, Zhou XY, Zhang YY, Zhao TC, Li J, Zhong LP, Pang YC. Macrophage-Capturing Self-Assembly Photosensitizer Nanoparticles Induces Immune Microenvironment Re-Programming and Golgi-Responsive Immunogenic Cell Death in Head and Neck Carcinoma. Adv Healthc Mater 2024:e2400012. [PMID: 38553781 DOI: 10.1002/adhm.202400012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/20/2024] [Indexed: 04/11/2024]
Abstract
Head and neck carcinoma treatment is shifted toward the combination of therapy causing immune checkpoint blockade (ICB) and immunogenic cell death. In this study, a CSFRi-chimeric TAMCSFR+-targeting extracellular vesicle (EV@CSFRi) platform is developed and designed an intracellular protoporphyrin conjugated with RVRR peptide sequence for furin-cleavage to perform Golgi-targeting and generating ROS (GT-RG). The graphical abstract illustrates the self-assembly of GT-RG nanoparticles into nanofiber through the hydrophily of RVRR and hydrophobicity of RG, and the red line indicates the site of furin cleavage. As is shown in the Graphical abstract, the Golgi-targeting Protoporphyrin-RVRR platform is composed with CSFRi-chimeric extracellular vesicles and forms the tumor-responsive TAM-reprogramming bilayers (GT-RGEV@CSFRi). The GT-RGEV@CSFRi acted as a multifunctional theranostic platform, which can induce immunogenic cell death and further help modulate TAM, thus suppressing the HNC xenograft model by combination therapy with anti-PD-1.
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Affiliation(s)
- Zhi-Hang Zhou
- Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Department of Oral Pathology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xin-Yu Zhou
- Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011, China
| | - Yi-Yi Zhang
- Department of Oral Pathology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Tong-Chao Zhao
- Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jiang Li
- Department of Oral Pathology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Lai-Ping Zhong
- Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Yi-Chuan Pang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
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3
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Barik D, Pidikaka C, Porel M. Dansyl-tagged xanthate ester as a capping agent to synthesize fluorescent silver nanoparticles with binding affinity toward serum albumin. Photochem Photobiol 2024. [PMID: 38419115 DOI: 10.1111/php.13927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
Developing multifunctional nanomaterials with distinct photochemical properties, such as high quantum yield, improved photostability, and good biocompatibility is critical for a wide range of biomedical applications. Motivated by this, we designed and synthesized a dansyl-tagged xanthate-based capping agent (DX) for the synthesis of fluorescent silver nanoparticles (AgNPs). The capping agent DX was characterized by 1 H and 13 C-NMR, LC-MS, and FT-IR. The synthesized DX-capped fluorescent AgNPs were thoroughly characterized by UV-visible spectroscopy, fluorescence spectroscopy, field emission scanning electron microscope (FE-SEM), transmission electron microscope (TEM), dynamic light scattering (DLS), and zeta potential. The fluorescent AgNPs showed distinct surface plasmon resonance absorption at λmax = 414 nm, fluorescence at λmax = 498 nm, quantum yield = 0.24, zeta potential = +18.6 mV, average size = 18.2 nm. Furthermore, the biological activity of the fluorescent AgNPs was validated by its interaction with the most abundant protein in the blood, that is, BSA (Bovine serum albumin) and HSA (Human serum albumin) with binding constant of 2.34 × 104 M-1 and 2.14 × 104 M-1 respectively. Interestingly, fluorescence resonance energy transfer (FRET) was observed between the fluorescent AgNPs and BSA/HSA with a FRET efficiency of 77.23% and 56.36%, respectively, indicating strong interaction between fluorescent AgNPs and BSA/HSA.
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Affiliation(s)
- Debashis Barik
- Department of Chemistry, Indian Institute of Technology Palakkad, Palakkad, India
| | | | - Mintu Porel
- Department of Chemistry, Indian Institute of Technology Palakkad, Palakkad, India
- Environmental Sciences and Sustainable Engineering Center, Indian Institute of Technology Palakkad, Palakkad, India
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4
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Hong X, Geng P, Tian N, Li X, Gao M, Nie L, Sun Z, Liu G. From Bench to Clinic: A Nitroreductase Rv3368c-Responsive Cyanine-Based Probe for the Specific Detection of Live Mycobacterium tuberculosis. Anal Chem 2024; 96:1576-1586. [PMID: 38190499 DOI: 10.1021/acs.analchem.3c04293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Tuberculosis (TB), characterized by high mortality and low diagnosis, is caused by a single pathogen, Mycobacterium tuberculosis (Mtb). Imaging tools that can be used to track Mtb without pre-labeling and to diagnose live Mtb in clinical samples can shorten the gap between bench and clinic, fuel the development of novel anti-TB drugs, strengthen TB prevention, and improve patient treatment. In this study, we report an unprecedented novel nitroreductase-responsive cyanine-based fluorescent probe (Cy3-NO2-tre) that rapidly and specifically labels Mtb and detects it in clinical samples. Cy3-NO2-tre generated fluorescence after activation by a specific nitroreductase, Rv3368c, which is conserved in the Mycobacteriaceae. Cy3-NO2-tre effectively imaged mycobacteria within infected host cells, tracked the infection process, and visualized Mycobacterium smegmatis being endocytosed by macrophages. Cy3-NO2-tre also detected Mtb in the sputum of patients with TB and exhibited excellent photostability. Furthermore, the Cy3-NO2-tre/auramine O percentage change within 7 ± 2 days post drug treatment in the sputum of inpatients was closely correlated with the reexamination results of the chest computed tomography, strongly demonstrating the clinical application of Cy3-NO2-tre as a prognostic indicator in monitoring the therapeutic efficacy of anti-TB drugs in the early patient care stage.
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Affiliation(s)
- Xiaoqiao Hong
- School of Pharmaceutical Sciences, Tsinghua University, Haidian District, Beijing 100084, China
| | - Pengfei Geng
- School of Pharmaceutical Sciences, Tsinghua University, Haidian District, Beijing 100084, China
| | - Na Tian
- Translational Medicine Center, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Xueyuan Li
- School of Pharmaceutical Sciences, Tsinghua University, Haidian District, Beijing 100084, China
| | - Mengqiu Gao
- Translational Medicine Center, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Lihui Nie
- Translational Medicine Center, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Zhaogang Sun
- Translational Medicine Center, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
- Beijing Key Laboratory in Drug Resistant Tuberculosis Research, Beijing Tuberculosis & Thoracic Tumor Research Institute, Beijing 101149, China
| | - Gang Liu
- School of Pharmaceutical Sciences, Tsinghua University, Haidian District, Beijing 100084, China
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Yan X, Chen X, Shan Z, Bi L. Innovative Cyanine-Based Fluorescent Dye for Targeted Mitochondrial Imaging and Its Utility in Whole-Brain Visualization. ACS OMEGA 2024; 9:2585-2596. [PMID: 38250363 PMCID: PMC10795114 DOI: 10.1021/acsomega.3c07374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 12/01/2023] [Accepted: 12/12/2023] [Indexed: 01/23/2024]
Abstract
Conducting in vivo brain imaging can be a challenging task due to the complexity of brain tissue and the strict requirements for safe and effective imaging agents. However, a new fluorescent dye called Cy5-PEG2 has been developed that selectively accumulates in mitochondria, enabling the visualization of these essential organelles in various cell lines. This dye is versatile and can be used for the real-time monitoring of mitochondrial dynamics in living cells. Moreover, it can cross the blood-brain barrier, making it a promising tool for noninvasive in vivo brain imaging. Based on the assessment of glial cell responses in the hippocampus and neocortex regions using GFAP and Iba1 biomarkers, Cy5-PEG2 seems to have minimal adverse effects on brain immune response or neuronal health. Therefore, this mitochondria-targeting fluorescent dye has the potential to advance our understanding of mitochondrial dynamics and function within the broader context of whole-brain physiology and disease progression. However, further research is needed to evaluate the safety and efficacy of Cy5-PEG2.
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Affiliation(s)
- Xin Yan
- Department
of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States
- Health
Research Institute, Michigan Technological
University, Houghton, Michigan 49931, United States
| | - Xinqian Chen
- Department
of Kinesiology and Integrative Physiology, Michigan Technological University, Houghton, Michigan 49931, United States
- Health
Research Institute, Michigan Technological
University, Houghton, Michigan 49931, United States
| | - Zhiying Shan
- Department
of Kinesiology and Integrative Physiology, Michigan Technological University, Houghton, Michigan 49931, United States
- Health
Research Institute, Michigan Technological
University, Houghton, Michigan 49931, United States
| | - Lanrong Bi
- Department
of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States
- Health
Research Institute, Michigan Technological
University, Houghton, Michigan 49931, United States
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