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Teppang KL, Zhao Q, Yang J. Development of fluorophores for the detection of oligomeric aggregates of amyloidogenic proteins found in neurodegenerative diseases. Front Chem 2023; 11:1343118. [PMID: 38188930 PMCID: PMC10766704 DOI: 10.3389/fchem.2023.1343118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 12/11/2023] [Indexed: 01/09/2024] Open
Abstract
Alzheimer's disease and Parkinson's disease are the two most common neurodegenerative diseases globally. These neurodegenerative diseases have characteristic late-stage symptoms allowing for differential diagnosis; however, they both share the presence of misfolded protein aggregates which appear years before clinical manifestation. Historically, research has focused on the detection of higher-ordered aggregates (or amyloids); however, recent evidence has shown that the oligomeric state of these protein aggregates plays a greater role in disease pathology, resulting in increased efforts to detect oligomers to aid in disease diagnosis. In this review, we summarize some of the exciting new developments towards the development of fluorescent probes that can detect oligomeric aggregates of amyloidogenic proteins present in Alzheimer's and Parkinson's disease patients.
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Affiliation(s)
| | | | - Jerry Yang
- Department of Chemistry and Biochemistry, University of California San Diego, San Diego, CA, United States
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2
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Zhao M, Zhang G, Huang S, Zhang J, Zhu Y, Zhu X, Zhang R, Li F. An activatable small-molecule fluorogenic probe for detection and quantification of beta-amyloid aggregates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123145. [PMID: 37478711 DOI: 10.1016/j.saa.2023.123145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/20/2023] [Accepted: 07/11/2023] [Indexed: 07/23/2023]
Abstract
Extracellular accumulation of β amyloid (Aβ) peptides in the brain is thought to be a pathological hallmark and initial event before the symptom starts of Alzheimer's patients. Herein, we developed two series of benzo[d]thiazole-based small-molecule compounds (BM1-BM4, BPM1-BPM4) with a donor-acceptor (D-A) or donor-π-acceptor (D-π-A) architecture, respectively, based on structure-activity relationship. Among them, the optimized BPM1 not only displayed the highest binding affinity to Aβ aggregates over other proteins or Aβ monomers, but was readily activated its fluorescence with 10-fold fluorescence enhancement, allowing for specifically and sensitively detecting Aβ aggregates. BPM1 also exhibits several other advantages including low molecular weight, low cytotoxicity and excellent biological stability. Besides, cell staining results confirmed that SK-N-BE(2) cells can be fluorescently lighted up as well as cell permeability and damage when treated with BPM1-bound Aβ1-42 aggregates.
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Affiliation(s)
- Meng Zhao
- Department of Nuclear Medicine, Research Center for Translations Medicine, the Second Hospital of Anhui Medical University, Hefei 230601, PR China
| | - Gang Zhang
- Department of Nuclear Medicine, Research Center for Translations Medicine, the Second Hospital of Anhui Medical University, Hefei 230601, PR China
| | - Shan Huang
- Department of Nuclear Medicine, Research Center for Translations Medicine, the Second Hospital of Anhui Medical University, Hefei 230601, PR China
| | - Jingmiao Zhang
- Department of Nuclear Medicine, Research Center for Translations Medicine, the Second Hospital of Anhui Medical University, Hefei 230601, PR China
| | - Yingzhong Zhu
- School of Chemistry and Chemical Engineering and Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China.
| | - Xiaxia Zhu
- Department of Nuclear Medicine, Research Center for Translations Medicine, the Second Hospital of Anhui Medical University, Hefei 230601, PR China
| | - Ruilong Zhang
- School of Chemistry and Chemical Engineering and Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China
| | - Fei Li
- Department of Nuclear Medicine, Research Center for Translations Medicine, the Second Hospital of Anhui Medical University, Hefei 230601, PR China.
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Naganuma F, Murata D, Inoue M, Maehori Y, Harada R, Furumoto S, Kudo Y, Nakamura T, Okamura N. A Novel Near-Infrared Fluorescence Probe THK-565 Enables In Vivo Detection of Amyloid Deposits in Alzheimer's Disease Mouse Model. Mol Imaging Biol 2023; 25:1115-1124. [PMID: 37580462 PMCID: PMC10728248 DOI: 10.1007/s11307-023-01843-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/16/2023]
Abstract
PURPOSE Noninvasive imaging of protein aggregates in the brain is critical for the early diagnosis, disease monitoring, and evaluation of the effectiveness of novel therapies for Alzheimer's disease (AD). Near-infrared fluorescence (NIRF) imaging with specific probes is a promising technique for the in vivo detection of protein deposits without radiation exposure. Comprehensive screening of fluorescent compounds identified a novel compound, THK-565, for the in vivo imaging of amyloid-β (Aβ) deposits in the mouse brain. This study assessed whether THK-565 could detect amyloid-β deposits in vivo in the AD mouse model. PROCEDURES The fluorescent properties of THK-565 were evaluated in the presence and absence of Aβ fibrils. APP knock-in (APP-KI) mice were used as an animal model of AD. In vivo NIRF images were acquired after the intravenous administration of THK-565 and THK-265 in mice. The binding selectivity of THK-565 to Aβ was evaluated using brain slices obtained from these mouse models. RESULTS The fluorescence intensity of the THK-565 solution substantially increased by mixing with Aβ fibrils. The maximum emission wavelength of the complex of THK-565 and Aβ fibrils was 704 nm, which was within the optical window range. THK-565 selectively bound to amyloid deposits in brain sections of APP-KI mice After the intravenous administration of THK-565, the fluorescence signal in the head of APP-KI mice was significantly higher than that of wild-type mice and higher than that after administration of THK-265. Ex vivo analysis confirmed that the THK-565 signal corresponded to Aβ immunostaining in the brain sections of these mice. CONCLUSIONS A novel NIRF probe, THK-565, enabled the in vivo detection of Aβ deposits in the brains of the AD mouse model, suggesting that NIRF imaging with THK-565 could non-invasively assess disease-specific pathology in AD.
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Grants
- 22KK0123 Ministry of Education, Culture, Sports, Science, and Technology of Japan
- 18H02771 Ministry of Education, Culture, Sports, Science, and Technology of Japan
- 16K15570 Ministry of Education, Culture, Sports, Science, and Technology of Japan
- Sumitomo Electric Industries
- Small Business Innovation Research (SBIR) program of Japan
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Affiliation(s)
- Fumito Naganuma
- Division of Pharmacology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Miyagino-Ku, Sendai, Miyagi, 983-8536, Japan
| | - Daiki Murata
- Division of Pharmacology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Miyagino-Ku, Sendai, Miyagi, 983-8536, Japan
| | - Marie Inoue
- Division of Pharmacology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Miyagino-Ku, Sendai, Miyagi, 983-8536, Japan
| | - Yuri Maehori
- Division of Pharmacology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Miyagino-Ku, Sendai, Miyagi, 983-8536, Japan
| | - Ryuichi Harada
- Department of Pharmacology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8575, Japan
| | - Shozo Furumoto
- Division of Radiopharmaceutical Chemistry, Cyclotron and Radioisotope Center, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi, 980-8578, Japan
| | - Yukitsuka Kudo
- Department of Aging Research and Geriatrics Medicine, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8575, Japan
| | - Tadaho Nakamura
- Division of Pharmacology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Miyagino-Ku, Sendai, Miyagi, 983-8536, Japan
| | - Nobuyuki Okamura
- Division of Pharmacology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Miyagino-Ku, Sendai, Miyagi, 983-8536, Japan.
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Yang J, Ding W, Zhu B, Zhen S, Kuang S, Yang J, Zhang C, Wang P, Yang F, Yang L, Yin W, Tanzi RE, Shen S, Ran C. Bioluminescence Imaging with Functional Amyloid Reservoirs in Alzheimer's Disease Models. Anal Chem 2023; 95:14261-14270. [PMID: 37712902 DOI: 10.1021/acs.analchem.3c02358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Bioluminescence imaging has changed the daily practice of preclinical research on cancer and other diseases over the last few decades; however, it has rarely been applied in preclinical research on Alzheimer's disease (AD). In this Article, we demonstrated that bioluminescence imaging could be used to report the levels of amyloid beta (Aβ) species in vivo. We hypothesized that AkaLumine, a newly discovered substrate for luciferase, could bind to Aβ aggregates and plaques. We further speculated that the Aβ aggregates/fibrils/plaques could be considered as "functional amyloids", which have a reservoir function to sequester and release AkaLumine to control the bioluminescence intensity, which could be used to report the levels of Aβs. Our hypotheses have been validated via in vitro solution tests, mimic studies with brain tissues and mice, two-photon imaging with AD mice, and in vivo bioluminescence imaging using transgenic AD mice that were virally transduced with AkaLuciferase (AkaLuc), a new luciferase that generates bioluminescence in the near-infrared window. As expected, compared to the control group, we observed that the Aβ group showed lower bioluminescence intensity due to AkaLumine sequestering at early time points, while higher intensity was due to AkaLumine releasing at later time points. Lastly, we demonstrated that this method could be used to monitor AD progression and the therapeutic effectiveness of avagacestat, a well-studied gamma-secretase inhibitor. Importantly, a good correlation (R2 = 0.81) was established between in vivo bioluminescence signals and Aβ burdens of the tested AD mice. We believe that our approach can be easily implemented into daily imaging experiments and has tremendous potential to change the daily practice of preclinical AD research.
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Affiliation(s)
- Jing Yang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129,United States
- School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Weihua Ding
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Biyue Zhu
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129,United States
| | - Sherri Zhen
- Genetics and Aging Research Unit, McCance Center for Brain Health, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts 02129, United States
| | - Shi Kuang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129,United States
| | - Jun Yang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129,United States
| | - Can Zhang
- Genetics and Aging Research Unit, McCance Center for Brain Health, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts 02129, United States
| | - Peng Wang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129,United States
- School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Fan Yang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129,United States
| | - Liuyue Yang
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Wei Yin
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129,United States
| | - Rudolph E Tanzi
- Genetics and Aging Research Unit, McCance Center for Brain Health, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts 02129, United States
| | - Shiqian Shen
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Chongzhao Ran
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Boston, Massachusetts 02129,United States
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Li L, Xiang F, Yao L, Zhang C, Jia X, Chen A, Liu Y. Synthesis and evaluation of curcumin-based near-infrared fluorescent probes for detection of amyloid β peptide in Alzheimer mouse models. Bioorg Med Chem 2023; 92:117410. [PMID: 37506558 DOI: 10.1016/j.bmc.2023.117410] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023]
Abstract
The abnormal accumulation of amyloid β protein (Aβ) is one of the most important causes of Alzheimer's disease (AD) and is usually a detecting biomarker. Curcumin and its derivatives have potential Aβ aggregate targeting ability; we synthesized a series of curcumin-based near-infrared fluorescence probes in this study. By characterizing the excitation wavelength and emission wavelength, the imaging characteristics of the investigation in the near-infrared light region were determined; with an increase in the concentration of the probe compounds, the fluorescence intensity showed an upward trend, demonstrating ideal optical characteristics. In vivo, imaging results showed that the synthesized probe compounds could penetrate the blood-brain barrier (BBB) and specifically bind to Aβ in the brain of APP/PS1 mice. Especially for compound 3b, the maximum emission wavelength was around 667 nm, and the fluorescence signal intensity in the brain of the APP/PS1 mice model was more than twice that of the wild control group at 120 min after administration, which could display Aβ pathological changes. The fluorescent probes designed in this study can become an effective tool for early AD diagnosis and visual detection.
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Affiliation(s)
- Li Li
- School of Pharmacy, Liaoning University, Shenyang 110036, People's Republic of China; Liaoning Key Laboratory of New Drug Research & Development, Shenyang 110036, People's Republic of China
| | - Fengting Xiang
- School of Pharmacy, Liaoning University, Shenyang 110036, People's Republic of China
| | - Luyang Yao
- School of Pharmacy, Liaoning University, Shenyang 110036, People's Republic of China
| | - Chuang Zhang
- School of Pharmacy, Liaoning University, Shenyang 110036, People's Republic of China
| | - Xirong Jia
- School of Pharmacy, Liaoning University, Shenyang 110036, People's Republic of China
| | - Anqi Chen
- School of Pharmacy, Liaoning University, Shenyang 110036, People's Republic of China
| | - Yu Liu
- School of Pharmacy, Liaoning University, Shenyang 110036, People's Republic of China; Liaoning University, Judicial Expertise Center, Shenyang 110036, People's Republic of China.
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6
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Bajad NG, Kumar A, Singh SK. Recent Advances in the Development of Near-Infrared Fluorescent Probes for the in Vivo Brain Imaging of Amyloid-β Species in Alzheimer's Disease. ACS Chem Neurosci 2023; 14:2955-2967. [PMID: 37574911 DOI: 10.1021/acschemneuro.3c00304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023] Open
Abstract
The deposition of β-amyloid (Aβ) plaques in the parenchymal and cortical regions of the brain of Alzheimer's disease (AD) patients is considered the foremost pathological hallmark of the disease. The early diagnosis of AD is paramount in order to effective management and treatment of the disease. Developing near-infrared fluorescence (NIRF) probes targeting Aβ species is a potential and attractive approach suitable for the early and timely diagnosis of AD. The advantages of the NIRF probes over other tools include real-time detection, higher sensitivity, resolution, comparatively inexpensive experimental setup, and noninvasive nature. Currently, enormous progress is being observed in the development of NIRF probes for the in vivo imaging of Aβ species. Several strategies, i.e., the classical push-pull approach, "turn-on" effect, aggregation-induced emission (AIE), and resonance energy transfer (RET), have been exploited for development. We have outlined and discussed the recently emerged NIRF probes with different design strategies targeting Aβ species for ex vivo and in vivo imaging. We believe that understanding the recent development enables the prospect of the rational design of probes and will pave the way for developing future novel probes for early diagnosis of AD.
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Affiliation(s)
- Nilesh Gajanan Bajad
- Pharmaceutical Chemistry Research Laboratory I, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, India
| | - Ashok Kumar
- Pharmaceutical Chemistry Research Laboratory I, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, India
| | - Sushil Kumar Singh
- Pharmaceutical Chemistry Research Laboratory I, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, India
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7
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Warerkar OD, Mudliar NH, Ahuja T, Shahane SD, Singh PK. A highly sensitive hemicyanine-based near-infrared fluorescence sensor for detecting toxic amyloid aggregates in human serum. Int J Biol Macromol 2023; 247:125621. [PMID: 37392920 DOI: 10.1016/j.ijbiomac.2023.125621] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/14/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023]
Abstract
The development of an accurate and sensitive sensor for detecting amyloid plaques, which are responsible for many protein disorders like Alzheimer's disease, is crucial for early diagnosis. Recently, there has been a notable increase in the development of fluorescence probes that exhibit emission in the red region (>600 nm), aiming to effectively tackle the challenges encountered when working with complex biological matrices. In the current investigation, a hemicyanine-based probe, called LDS730, has been used for the sensing of amyloid fibrils, which belong to the Near-Infrared Fluorescence (NIRF) family of dyes. NIRF probes provide higher precision in detection, prevent photo-damage, and minimize the autofluorescence of biological specimens. The LDS730 sensor emits in the near-infrared region and shows a 110-fold increase in fluorescence turn-on emission when bound to insulin fibrils, making it a highly sensitive sensor. The sensor has an emission maximum of ~710 nm in a fibril-bound state, which shows a significant red shift along with a Stokes' shift of ~50 nm. The LDS730 sensor also displays excellent performance in the complicated human serum matrix, with a limit of detection (LOD) of 103 nM. Molecular docking calculations suggest that the most likely binding location of LDS730 in the fibrillar structure is the inner channels of amyloid fibrils along its long axis, and the sensor engages in several types of hydrophobic interactions with neighboring amino acid residues of the fibrillar structure. Overall, this new amyloid sensor has great potential for the early detection of amyloid plaques and for improving diagnostic accuracy.
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Affiliation(s)
- Oshin D Warerkar
- SVKM's Shri C. B. Patel Research Centre, Vile Parle, Mumbai, Maharashtra 400056, India
| | - Niyati H Mudliar
- SVKM's Shri C. B. Patel Research Centre, Vile Parle, Mumbai, Maharashtra 400056, India
| | - Tanya Ahuja
- SVKM's Shri C. B. Patel Research Centre, Vile Parle, Mumbai, Maharashtra 400056, India
| | - Sailee D Shahane
- SVKM's Shri C. B. Patel Research Centre, Vile Parle, Mumbai, Maharashtra 400056, India
| | - Prabhat K Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India.
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Chen Y. Two-Photon Fluorescent Probes for Amyloid-β Plaques Imaging In Vivo. Molecules 2023; 28:6184. [PMID: 37687013 PMCID: PMC10488448 DOI: 10.3390/molecules28176184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 09/10/2023] Open
Abstract
Amyloid-β (Aβ) peptide deposition, hyperphosphorylated tau proteins, reactive astrocytes, high levels of metal ions, and upregulated monoamine oxidases are considered to be the primary pathological markers of Alzheimer's disease (AD). Among them, Aβ peptide deposition or Aβ plaques, is regarded as the initial factor in the pathogenesis of AD and a critical pathological hallmark in AD. This review highlights recently Aβ-specific fluorescent probes for two-photon imaging of Aβ plaques in vivo. It includes the synthesis and detection mechanism of probes, as well as their application to two-photon imaging of Aβ plaques in vivo.
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Affiliation(s)
- Yi Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100190, China
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Yue NN, Xu HM, Xu J, Zhu MZ, Zhang Y, Tian CM, Nie YQ, Yao J, Liang YJ, Li DF, Wang LS. Application of Nanoparticles in the Diagnosis of Gastrointestinal Diseases: A Complete Future Perspective. Int J Nanomedicine 2023; 18:4143-4170. [PMID: 37525691 PMCID: PMC10387254 DOI: 10.2147/ijn.s413141] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/02/2023] [Indexed: 08/02/2023] Open
Abstract
The diagnosis of gastrointestinal (GI) diseases currently relies primarily on invasive procedures like digestive endoscopy. However, these procedures can cause discomfort, respiratory issues, and bacterial infections in patients, both during and after the examination. In recent years, nanomedicine has emerged as a promising field, providing significant advancements in diagnostic techniques. Nanoprobes, in particular, offer distinct advantages, such as high specificity and sensitivity in detecting GI diseases. Integration of nanoprobes with advanced imaging techniques, such as nuclear magnetic resonance, optical fluorescence imaging, tomography, and optical correlation tomography, has significantly enhanced the detection capabilities for GI tumors and inflammatory bowel disease (IBD). This synergy enables early diagnosis and precise staging of GI disorders. Among the nanoparticles investigated for clinical applications, superparamagnetic iron oxide, quantum dots, single carbon nanotubes, and nanocages have emerged as extensively studied and utilized agents. This review aimed to provide insights into the potential applications of nanoparticles in modern imaging techniques, with a specific focus on their role in facilitating early and specific diagnosis of a range of GI disorders, including IBD and colorectal cancer (CRC). Additionally, we discussed the challenges associated with the implementation of nanotechnology-based GI diagnostics and explored future prospects for translation in this promising field.
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Affiliation(s)
- Ning-ning Yue
- Department of Gastroenterology, Shenzhen People’s Hospital (the Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
| | - Hao-ming Xu
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, People’s Republic of China
| | - Jing Xu
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, People’s Republic of China
| | - Min-zheng Zhu
- Department of Gastroenterology and Hepatology, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, People’s Republic of China
| | - Yuan Zhang
- Department of Medical Administration, Huizhou Institute of Occupational Diseases Control and Prevention, Huizhou, Guangdong, People’s Republic of China
| | - Cheng-Mei Tian
- Department of Emergency, Shenzhen People’s Hospital (the Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
| | - Yu-qiang Nie
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, People’s Republic of China
| | - Jun Yao
- Department of Gastroenterology, Shenzhen People’s Hospital (the Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
| | - Yu-jie Liang
- Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital, Shenzhen, Guangdong, People’s Republic of China
| | - De-feng Li
- Department of Gastroenterology, Shenzhen People’s Hospital (the Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
| | - Li-sheng Wang
- Department of Gastroenterology, Shenzhen People’s Hospital (the Second Clinical Medical College, Jinan University), Shenzhen, Guangdong, People’s Republic of China
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Al Olaimat M, Martinez J, Saeed F, Bozdag S. PPAD: a deep learning architecture to predict progression of Alzheimer's disease. Bioinformatics 2023; 39:i149-i157. [PMID: 37387135 DOI: 10.1093/bioinformatics/btad249] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023] Open
Abstract
MOTIVATION Alzheimer's disease (AD) is a neurodegenerative disease that affects millions of people worldwide. Mild cognitive impairment (MCI) is an intermediary stage between cognitively normal state and AD. Not all people who have MCI convert to AD. The diagnosis of AD is made after significant symptoms of dementia such as short-term memory loss are already present. Since AD is currently an irreversible disease, diagnosis at the onset of the disease brings a huge burden on patients, their caregivers, and the healthcare sector. Thus, there is a crucial need to develop methods for the early prediction AD for patients who have MCI. Recurrent neural networks (RNN) have been successfully used to handle electronic health records (EHR) for predicting conversion from MCI to AD. However, RNN ignores irregular time intervals between successive events which occurs common in electronic health record data. In this study, we propose two deep learning architectures based on RNN, namely Predicting Progression of Alzheimer's Disease (PPAD) and PPAD-Autoencoder. PPAD and PPAD-Autoencoder are designed for early predicting conversion from MCI to AD at the next visit and multiple visits ahead for patients, respectively. To minimize the effect of the irregular time intervals between visits, we propose using age in each visit as an indicator of time change between successive visits. RESULTS Our experimental results conducted on Alzheimer's Disease Neuroimaging Initiative and National Alzheimer's Coordinating Center datasets showed that our proposed models outperformed all baseline models for most prediction scenarios in terms of F2 and sensitivity. We also observed that the age feature was one of top features and was able to address irregular time interval problem. AVAILABILITY AND IMPLEMENTATION https://github.com/bozdaglab/PPAD.
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Affiliation(s)
- Mohammad Al Olaimat
- Department of Computer Science and Engineering, University of North Texas, Denton, TX, United States
| | - Jared Martinez
- Department of Computer Science and Engineering, University of North Texas, Denton, TX, United States
| | - Fahad Saeed
- School of Computing and Information Sciences, Florida International University, Miami, FL, United States
| | - Serdar Bozdag
- Department of Computer Science and Engineering, University of North Texas, Denton, TX, United States
- Department of Mathematics, University of North Texas, Denton, TX, United States
- BioDiscovery Institute, University of North Texas, Denton, TX, United States
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11
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Ji YM, Hou M, Zhou W, Ning ZW, Zhang Y, Xing GW. An AIE-Active NIR Fluorescent Probe with Good Water Solubility for the Detection of Aβ 1-42 Aggregates in Alzheimer's Disease. Molecules 2023; 28:5110. [PMID: 37446772 DOI: 10.3390/molecules28135110] [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: 05/24/2023] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Alzheimer's disease (AD), an amyloid-related disease, seriously endangers the health of elderly individuals. According to current research, its main pathogenic factor is the amyloid protein, which is a kind of fibrillar aggregate formed by noncovalent self-assembly of proteins. Based on the characteristics of aggregation-induced emission (AIE), a bislactosyl-decorated tetraphenylethylene (TPE) molecule TMNL (TPE + malononitrile + lactose), bearing two malononitrile substituents, was designed and synthesized in this work. The amphiphilic TMNL could self-assemble into fluorescent organic nanoparticles (FONs) with near-infrared (NIR) fluorescence emission in physiological PBS (phosphate buffered saline), achieving excellent fluorescent enhancement (47-fold) upon its combination with Aβ1-42 fibrils. TMNL was successfully applied to image Aβ1-42 plaques in the brain tissue of AD transgenic mice, and due to the AIE properties of TMNL, no additional rinsing process was necessary. It is believed that the probe reported in this work should be useful for the sensitive detection and accurate localization mapping of Aβ1-42 aggregates related to Alzheimer's disease.
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Affiliation(s)
- Yan-Ming Ji
- Center of Safety Production and Testing Technology, China Academy of Safety Science and Technology, Beijing 100012, China
| | - Min Hou
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Wei Zhou
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Zhang-Wei Ning
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yuan Zhang
- College of Chemistry, Beijing Normal University, Beijing 100875, China
- Key Laboratory of Energy Conversion and Storage Materials, Beijing Normal University, Beijing 100875, China
| | - Guo-Wen Xing
- College of Chemistry, Beijing Normal University, Beijing 100875, China
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, China
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12
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Fang Y, Wang Q, Xiang C, Liu G, Li J. A Novel Aggregation-Induced Emission Fluorescent Probe for Detection of β-Amyloid Based on Pyridinyltriphenylamine and Quinoline-Malononitrile. BIOSENSORS 2023; 13:610. [PMID: 37366974 DOI: 10.3390/bios13060610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/12/2023] [Accepted: 05/31/2023] [Indexed: 06/28/2023]
Abstract
β-amyloid is an important pathological feature of Alzheimer's disease. Its abnormal production and aggregation in the patient's brain is an important basis for the early diagnosis and confirmation of Alzheimer's disease. In this study, a novel aggregation-induced emission fluorescent probe, PTPA-QM, was designed and synthesized based on pyridinyltriphenylamine and quinoline-malononitrile. These molecules exhibit a donor-donor-π-acceptor structure with a distorted intramolecular charge transfer feature. PTPA-QM displayed the advantages of good selectivity toward viscosity. The fluorescence intensity of PTPA-QM in 99% glycerol solution was 22-fold higher than that in pure DMSO. PTPA-QM has been confirmed to have excellent membrane permeability and low toxicity. More importantly, PTPA-QM exhibits a high affinity towards β-amyloid in brain sections of 5XFAD mice and classical inflammatory cognitive impairment mice. In conclusion, our work provides a promising tool for the detection of β-amyloid.
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Affiliation(s)
- Yan Fang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Qi Wang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Chenlong Xiang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Guijin Liu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Junjian Li
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
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13
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Wongso H, Ono M, Yamasaki T, Kumata K, Higuchi M, Zhang MR, Fulham MJ, Katsifis A, Keller PA. Synthesis and structure-activity relationship (SAR) studies of 1,2,3-triazole, amide, and ester-based benzothiazole derivatives as potential molecular probes for tau protein. RSC Med Chem 2023; 14:858-868. [PMID: 37252097 PMCID: PMC10211319 DOI: 10.1039/d2md00358a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/24/2023] [Indexed: 01/04/2024] Open
Abstract
The pyridinyl-butadienyl-benzothiazole (PBB3 15) scaffold was used to develop tau ligands with improved in vitro and in vivo properties for imaging applications to provide insights into the etiology and characteristics of Alzheimer's disease. The photoisomerisable trans-butadiene bridge of PBB3 was replaced with 1,2,3-triazole, amide, and ester moieties and in vitro fluorescence staining studies revealed that triazole derivatives showed good visualisation of Aβ plaques, but failed to detect the neurofibrillary tangles (NFTs) in human brain sections. However, NFTs could be observed using the amide 110 and ester 129. Furthermore, the ligands showed low to high affinities (Ki = >1.5 mM-0.46 nM) at the shared binding site(s) with PBB3.
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Affiliation(s)
- Hendris Wongso
- School of Chemistry and Molecular Bioscience, Molecular Horizons, University of Wollongong Wollongong NSW 2522 Australia
- Research Center for Radioisotope, Radiopharmaceutical, and Biodosimetry Technology, National Research and Innovation Agency Puspiptek Banten 15314 Indonesia
- Research Collaboration Center for Theranostic Radiopharmaceuticals, National Research and Innovation Agency Sumedang 45363 Indonesia
| | - Maiko Ono
- Department of Functional Brain Imaging, National Institutes for Quantum Science and Technology Chiba 263-8555 Japan
| | - Tomoteru Yamasaki
- Department of Advanced Nuclear Medicine Sciences, National Institutes for Quantum Science and Technology Chiba 263-8555 Japan
| | - Katsushi Kumata
- Department of Advanced Nuclear Medicine Sciences, National Institutes for Quantum Science and Technology Chiba 263-8555 Japan
| | - Makoto Higuchi
- Department of Functional Brain Imaging, National Institutes for Quantum Science and Technology Chiba 263-8555 Japan
| | - Ming-Rong Zhang
- Department of Advanced Nuclear Medicine Sciences, National Institutes for Quantum Science and Technology Chiba 263-8555 Japan
| | - Michael J Fulham
- Department of PET and Nuclear Medicine, Royal Prince Alfred Hospital Camperdown NSW 2050 Australia
| | - Andrew Katsifis
- Department of PET and Nuclear Medicine, Royal Prince Alfred Hospital Camperdown NSW 2050 Australia
| | - Paul A Keller
- School of Chemistry and Molecular Bioscience, Molecular Horizons, University of Wollongong Wollongong NSW 2522 Australia
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14
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Dreos A, Ge J, Najera F, Tebikachew BE, Perez-Inestrosa E, Moth-Poulsen K, Blennow K, Zetterberg H, Hanrieder J. Investigating New Applications of a Photoswitchable Fluorescent Norbornadiene as a Multifunctional Probe for Delineation of Amyloid Plaque Polymorphism. ACS Sens 2023; 8:1500-1509. [PMID: 36946692 PMCID: PMC10152485 DOI: 10.1021/acssensors.2c02496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/03/2023] [Indexed: 03/23/2023]
Abstract
Amyloid beta (Aβ) plaques are a major pathological hallmark of Alzheimer's disease (AD) and constitute of structurally heterogenic entities (polymorphs) that have been implicated in the phenotypic heterogeneity of AD pathology and pathogenesis. Understanding amyloid aggregation has been a critical limiting factor to gain understanding of AD pathogenesis, ultimately reflected in that the underlying mechanism remains elusive. We identified a fluorescent probe in the form of a turn-off photoswitchable norbornadiene derivative (NBD1) with several microenvironment-sensitive properties that make it relevant for applications within advanced fluorescence imaging, for example, multifunctional imaging. We explored the application of NBD1 for in situ delineation of structurally heterogenic Aβ plaques in transgenic AD mouse models. NBD1 plaque imaging shows characteristic broader emission bands in the periphery and more narrow emission bands in the dense cores of mature cored plaques. Further, we demonstrate in situ photoisomerization of NBD1 to quadricyclane and thermal recovery in single plaques, which is relevant for applications within both functional and super-resolution imaging. This is the first time a norbornadiene photoswitch has been used as a probe for fluorescence imaging of Aβ plaque pathology in situ and that its spectroscopic and switching properties have been studied within the specific environment of senile Aβ plaques. These findings open the way toward new applications of NBD-based photoswitchable fluorescent probes for super-resolution or dual-color imaging and multifunctional microscopy of amyloid plaque heterogeneity. This could allow to visualize Aβ plaques with resolution beyond the diffraction limit, label different plaque types, and gain insights into their physicochemical composition.
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Affiliation(s)
- Ambra Dreos
- Department
of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, 43180 Mölndal, Sweden
- Instituto
de Investigación Biomédica de Málaga y Plataforma
en Nanomedicina−IBIMA Plataforma Bionand, 29590 Malaga, Spain
| | - Junyue Ge
- Department
of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, 43180 Mölndal, Sweden
| | - Francisco Najera
- Instituto
de Investigación Biomédica de Málaga y Plataforma
en Nanomedicina−IBIMA Plataforma Bionand, 29590 Malaga, Spain
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
| | - Behabitu Ergette Tebikachew
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, 41296 Gothenburg, Sweden
| | - Ezequiel Perez-Inestrosa
- Instituto
de Investigación Biomédica de Málaga y Plataforma
en Nanomedicina−IBIMA Plataforma Bionand, 29590 Malaga, Spain
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
| | - Kasper Moth-Poulsen
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, 41296 Gothenburg, Sweden
- Institute
of Materials Science of Barcelona, ICMAB-CSIC, Bellaterra, 08193 Barcelona, Spain
- Catalan
Institution for Research and Advanced Studies ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
- Department
of Chemical Engineering, Universitat Politecnica
de Catalunya, EEBE, Eduard
Maristany 10-14, 08019 Barcelona, Spain
| | - Kaj Blennow
- Department
of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, 43180 Mölndal, Sweden
- Clinical
Neurochemistry Laboratory, Sahlgrenska University
Hospital, 43180 Mölndal, Sweden
| | - Henrik Zetterberg
- Department
of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, 43180 Mölndal, Sweden
- Clinical
Neurochemistry Laboratory, Sahlgrenska University
Hospital, 43180 Mölndal, Sweden
- Department
of Neurodegenerative Disease, Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
- UK
Dementia Research Institute, University
College London, London WC1N 3BG, UK
- Hong
Kong Center for Neurodegenerative Diseases, Hong Kong 1512-1518, China
- UW
Department of Medicine, School of Medicine and Public Health, Madison, Wisconsin 53726, United States
| | - Jörg Hanrieder
- Department
of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, 43180 Mölndal, Sweden
- Department
of Neurodegenerative Disease, Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
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15
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Mirochnik AG, Puzyrkov ZN, Fedorenko EV, Svistunova IV, Markova AA, Shibaeva AV, Burtsev ID, Kostyukov AA, Egorov AE, Kuzmin VA. Fluorescent boron difluoride curcuminoides as perspective materials for bio-visualization. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 291:122319. [PMID: 36630811 DOI: 10.1016/j.saa.2023.122319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 12/09/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Curcuminoids of boron difluoride, 1-aryl(hetaryl)-5-phenylpenta-2,4-dien-1-onates of boron difluoride, have been synthesized. A comparative study of the electronic structure, luminescent properties and their potential for applications in bio-imaging has been carried out. The influence of the electronic structure of α-substituents on the luminescence of compounds was studied by the methods of stationary and time-resolved luminescence spectroscopy and DFT modeling. The introduction of π-donor substituents leads to a noticeable bathochromic shift and an increase in the Stokes shift in the luminescence spectra. On going from σ-donor substituents in the phenyl ring to π-donor substituents, the luminescence quantum yield increases from 0.03 to 0.22. The maximum Stokes shift and high quantum yield of luminescence is exhibited by the complex with a stilbene substituent, which has the longest π-system and the maximum efficiency of charge transfer. Dyes are able to penetrate into the cells of the model cell line and accumulate, moreover, accumulation occurs mainly in the cytoplasm of cells. The compounds penetrate into the cells by 12 h of incubation without damaging it's structure and without causing rapid cell death. The submicromolar range of non-toxic concentrations during long-term incubation for a model cell line was determined, which is a characteristic of fluorescent imaging. Due to uniform distribution in the cytoplasm of cells dye with naphtyl substituent is promising for visualization of the cell cytoplasm. This leader compound has the lowest cytotoxicity for cells from the synthesized series of dyes, which makes it promising for further studies as a fluorescent imaging agent. The leader compound has the lowest cytotoxicity for cells from the synthesized series of dyes, which makes it promising for further studies as a fluorescent imaging agent.
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Affiliation(s)
- Anatolii G Mirochnik
- Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russian Federation
| | - Zakhar N Puzyrkov
- Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russian Federation; Far Eastern Federal University, 8, Sukhanova Str., Vladivostok 690950, Russian Federation
| | - Elena V Fedorenko
- Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russian Federation.
| | - Irina V Svistunova
- Far Eastern Federal University, 8, Sukhanova Str., Vladivostok 690950, Russian Federation
| | - Alina A Markova
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
| | - Anna V Shibaeva
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
| | - Ivan D Burtsev
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
| | - Alexey A Kostyukov
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
| | - Anton E Egorov
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
| | - Vladimir A Kuzmin
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
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16
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Yan C, Dai J, Yao Y, Fu W, Tian H, Zhu WH, Guo Z. Preparation of near-infrared AIEgen-active fluorescent probes for mapping amyloid-β plaques in brain tissues and living mice. Nat Protoc 2023; 18:1316-1336. [PMID: 36697872 DOI: 10.1038/s41596-022-00789-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/21/2022] [Indexed: 01/26/2023]
Abstract
Fibrillar aggregates of the amyloid-β protein (Aβ) are the main component of the senile plaques found in brains of patients with Alzheimer's disease (AD). Development of probes allowing the noninvasive and high-fidelity mapping of Aβ plaques in vivo is critical for AD early detection, drug screening and biomedical research. QM-FN-SO3 (quinoline-malononitrile-thiophene-(dimethylamino)phenylsulfonate) is a near-infrared aggregation-induced-emission-active fluorescent probe capable of crossing the blood-brain barrier (BBB) and ultrasensitively lighting up Aβ plaques in living mice. Herein, we describe detailed procedures for the two-stage synthesis of QM-FN-SO3 and its applications for mapping Aβ plaques in brain tissues and living mice. Compared with commercial thioflavin (Th) derivatives ThT and ThS (the gold standard for detection of Aβ aggregates) and other reported Aβ plaque fluorescent probes, QM-FN-SO3 confers several advantages, such as long emission wavelength, large Stokes shift, ultrahigh sensitivity, good BBB penetrability and miscibility in aqueous biological media. The preparation of QM-FN-SO3 takes ~2 d, and the confocal imaging experiments for Aβ plaque visualization, including the preparation for mouse brain sections, take ~7 d. Notably, acquisition and analyses for in vivo visualization of Aβ plaques in mice can be completed within 1 h and require only a basic knowledge of spectroscopy and chemistry.
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Affiliation(s)
- Chenxu Yan
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Jianfeng Dai
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Yongkang Yao
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Wei Fu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Wei-Hong Zhu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhiqian Guo
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China.
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17
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Cao Y, Liu X, Zhang J, Liu Z, Fu Y, Zhang D, Zheng M, Zhang H, Xu MH. Design of a Coumarin-Based Fluorescent Probe for Efficient In Vivo Imaging of Amyloid-β Plaques. ACS Chem Neurosci 2023; 14:829-838. [PMID: 36749171 DOI: 10.1021/acschemneuro.2c00468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Amyloid-β (Aβ) is the core constituent protein of senile plaques, which is one of the key pathological hallmarks of Alzheimer's disease (AD). Here we describe the design, synthesis, and evaluation of coumarin-derived small molecule fluorophores for Aβ imaging. By embedding the aromatic coumarin framework into π bridge of a push-pull chromophore, a novel fluorescence probe XCYC-3 applicable to efficient Aβ recognition was discovered. XCYC-3 displays higher fluorescent enhancement for aggregated Aβ than monomeric Aβ, and possesses good blood-brain barrier permeability. In vitro staining and in vivo imaging studies demonstrated that XCYC-3 could efficiently recognize Aβ plaques in the brain of AD transgenic mice. These results suggest that XCYC-3 is a promising fluorescence imaging agent for Aβ, which might provide important clues for the future development of potent NIR fluorescent probes for Aβ diagnosis.
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Affiliation(s)
- Yangyang Cao
- Shenzhen Grubbs Institute and Department of Chemistry, Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiaohui Liu
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingjing Zhang
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zhongmin Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yan Fu
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Dong Zhang
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Mingyue Zheng
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haiyan Zhang
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming-Hua Xu
- Shenzhen Grubbs Institute and Department of Chemistry, Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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18
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Hou SS, Yang J, Lee JH, Kwon Y, Calvo-Rodriguez M, Bao K, Ahn S, Kashiwagi S, Kumar ATN, Bacskai BJ, Choi HS. Near-infrared fluorescence lifetime imaging of amyloid-β aggregates and tau fibrils through the intact skull of mice. Nat Biomed Eng 2023; 7:270-280. [PMID: 36747008 PMCID: PMC10040441 DOI: 10.1038/s41551-023-01003-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 01/08/2023] [Indexed: 02/08/2023]
Abstract
Non-invasive methods for the in vivo detection of hallmarks of Alzheimer's disease can facilitate the study of the progression of the disease in mouse models and may enable its earlier diagnosis in humans. Here we show that the zwitterionic heptamethine fluorophore ZW800-1C, which has peak excitation and emission wavelengths in the near-infrared optical window, binds in vivo and at high contrast to amyloid-β deposits and to neurofibrillary tangles, and allows for the microscopic imaging of amyloid-β and tau aggregates through the intact skull of mice. In transgenic mouse models of Alzheimer's disease, we compare the performance of ZW800-1C with that of the two spectrally similar heptamethine fluorophores ZW800-1A and indocyanine green, and show that ZW800-1C undergoes a longer fluorescence-lifetime shift when bound to amyloid-β and tau aggregates than when circulating in blood vessels. ZW800-1C may prove advantageous for tracking the proteinic aggregates in rodent models of amyloid-β and tau pathologies.
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Affiliation(s)
- Steven S Hou
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Joyce Yang
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jeong Heon Lee
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Yeseo Kwon
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Maria Calvo-Rodriguez
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Kai Bao
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sung Ahn
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Anand T N Kumar
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Brian J Bacskai
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Hak Soo Choi
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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19
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Zhang M, Fu H, Hu W, Leng J, Zhang Y. Versatile Dicyanomethylene-Based Fluorescent Probes for the Detection of β-Amyloid in Alzheimer’s Disease: A Theoretical Perspective. Int J Mol Sci 2022; 23:ijms23158619. [PMID: 35955758 PMCID: PMC9369443 DOI: 10.3390/ijms23158619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/29/2022] [Accepted: 07/30/2022] [Indexed: 02/05/2023] Open
Abstract
Motivated by the growing demand for target chemosensors designed with diagnostic or therapeutic capability for fibrils related to amyloidosis diseases, we investigated in the present work the response mechanism of dicyanomethylene-based fluorescent probes for amyloid fibril using a combined approach, including molecular docking, quantum mechanics/molecular mechanics (QM/MM), and the quantum chemical method. Various binding modes for the probes in β-amyloid (Aβ) are discussed, and the fibril environment-induced molecular optical changes at the most stable site are compared to the fibril-free situation in aqueous environments. The results reveal that the fluorescence enhancement for the probes in Aβ observed experimentally is an average consequence over multiple binding sites. In particular, the conformational difference, including conjugation length and donor effect, significantly contributes to the optical property of the studied probes both in water and fibril. To further estimate the transition nature of the molecular photoabsorption and photoemission processes, the hole-electron distribution and the structural variation on the first excited state of the probes are investigated in detail. On the basis of the calculations, structure–property relationships for the studied chemosensors are established. Our computational approach with the ability to elucidate the available experimental results can be used for designing novel molecular probes with applications to Aβ imaging and the early diagnosis of Alzheimer’s disease.
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20
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Cabrera P, Jara-Guajardo P, Oyarzún MP, Parra-Muñoz N, Campos A, Soler M, Álvarez A, Morales-Zavala F, Araya E, Minniti AN, Aldunate R, Kogan MJ. Surface enhanced fluorescence effect improves the in vivo detection of amyloid aggregates. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2022; 44:102569. [PMID: 35595016 DOI: 10.1016/j.nano.2022.102569] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
The β-amyloid (Aβ) peptide is one of the key etiological agents in Alzheimer's disease (AD). The in vivo detection of Aβ species is challenging in all stages of the illness. Currently, the development of fluorescent probes allows the detection of Aβ in animal models in the near-infrared region (NIR). However, considering future applications in biomedicine, it is relevant to develop strategies to improve detection of amyloid aggregates using NIR probes. An innovative approach to increase the fluorescence signal of these fluorophores is the use of plasmonic gold nanoparticles (surface-enhanced fluorescence effect). In this work, we improved the detection of Aβ aggregates in C. elegans and mouse models of AD by co-administering functionalized gold nanorods (GNRs-PEG-D1) with the fluorescent probes CRANAD-2 or CRANAD-58, which bind selectively to different amyloid species (soluble and insoluble). This work shows that GNRs improve the detection of Aβ using NIR probes in vivo.
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Affiliation(s)
- Pablo Cabrera
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile
| | - Pedro Jara-Guajardo
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile
| | - María Paz Oyarzún
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile
| | - Nicole Parra-Muñoz
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago 8370456, Chile
| | - Aldo Campos
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago 8370456, Chile
| | - Mónica Soler
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago 8370456, Chile
| | - Alejandra Álvarez
- Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O´Higgins 340, Santiago 8331150, Chile; Cell Signaling Laboratory, Department of Cellular and Molecular Biology, Center for Aging and Regeneration (CARE), Millennium Institute on Immunology and Immunotherapy, Biological Sciences Faculty, Pontificia Universidad Catolica de Chile, Santiago 8380494, Chile
| | - Francisco Morales-Zavala
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile; Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Camino La Piramide 5750, Huechuraba, Chile
| | - Eyleen Araya
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Republica 275, Santiago, Chile
| | - Alicia N Minniti
- Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O´Higgins 340, Santiago 8331150, Chile
| | - Rebeca Aldunate
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Santo Tomás, Ejercito 146, Santiago, Chile.
| | - Marcelo J Kogan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile.
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21
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Rai H, Gupta S, Kumar S, Yang J, Singh SK, Ran C, Modi G. Near-Infrared Fluorescent Probes as Imaging and Theranostic Modalities for Amyloid-Beta and Tau Aggregates in Alzheimer's Disease. J Med Chem 2022; 65:8550-8595. [PMID: 35759679 DOI: 10.1021/acs.jmedchem.1c01619] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A person suspected of having Alzheimer's disease (AD) is clinically diagnosed for the presence of principal biomarkers, especially misfolded amyloid-beta (Aβ) and tau proteins in the brain regions. Existing radiotracer diagnostic tools, such as PET imaging, are expensive and have limited availability for primary patient screening and pre-clinical animal studies. To change the status quo, small-molecular near-infrared (NIR) probes have been rapidly developed, which may serve as an inexpensive, handy imaging tool to comprehend the dynamics of pathogenic progression in AD and assess therapeutic efficacy in vivo. This Perspective summarizes the biochemistry of Aβ and tau proteins and then focuses on structurally diverse NIR probes with coverages of their spectroscopic properties, binding affinity toward Aβ and tau species, and theranostic effectiveness. With the summarized information and perspective discussions, we hope that this paper may serve as a guiding tool for designing novel in vivo imaging fluoroprobes with theranostic capabilities in the future.
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Affiliation(s)
- Himanshu Rai
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, U.P.-221005, India
| | - Sarika Gupta
- Molecular Science Laboratory, National Institute of Immunology, New Delhi-110067, India
| | - Saroj Kumar
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Jian Yang
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Sushil K Singh
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, U.P.-221005, India
| | - Chongzhao Ran
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts 02129, United States
| | - Gyan Modi
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, U.P.-221005, India
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22
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Mann G, Chauhan K, Kumar V, Daksh S, Kumar N, Thirumal M, Datta A. Bio-Evaluation of 99mTc-Labeled Homodimeric Chalcone Derivative as Amyloid-β-Targeting Probe. Front Med (Lausanne) 2022; 9:813465. [PMID: 35783620 PMCID: PMC9249127 DOI: 10.3389/fmed.2022.813465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 05/24/2022] [Indexed: 11/19/2022] Open
Abstract
Chalcone derivatives have been successfully utilized for a range of biological applications and can cross the blood–brain barrier easily. β-amyloid-specific bis-chalcone derivative, 6,9-bis(carboxymethyl)-14-(4-[(E)-3-(4-(dimethylamino)phenyl)acryloyl]phenoxy)-3-(2-[(2-(4-[(E)-3-(4-(dimethylamino)phenyl)acryloyl]phenoxy)ethyl)amino]-2-oxoethyl)-11-oxo-3,6,9,12-tetraazatetradecanoic acid, DT(Ch)2, was analyzed using molecular modeling to explain the binding modes of the ligand with amyloid fibril and monomer followed by 99mTc-complexation in 95% yield and 98.7% efficiency. High-binding specificity of the radiocomplex was established following in vitro evaluation against 100-fold excess of DT(Ch)2. 99mTc–DT(Ch)2 exhibited <3% trans-complexation in human serum after 24 h, indicating high stability. A fast clearance rate in pharmacokinetics studies displayed a biphasic pattern with t1/2(F) = 30 min ± 0.09 and t1/2(S) = 4 h 20 min ± 0.06. In vivo single-photon emission computed tomography (SPECT) imaging in rabbits reiterated the pharmacokinetics data with initially high brain uptake followed by rapid washout. Biodistribution studies confirmed the initial brain uptake as 1.16 ± 0.02% ID/g after 2 min and the brain2min/brain30min ratio was 3.74. Radioactivity distribution in the brain was >40% in the cingulate cortex followed by >25% in the hippocampus, a distribution pattern aligned to Alzheimer’s affected brain regions. Radiocomplex also displayed rapid plasma clearance followed by hepatobolic and renal modes of excretion.
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Affiliation(s)
- Garima Mann
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
- Department of Chemistry, University of Delhi, New Delhi, India
| | - Kanchan Chauhan
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Mexico
| | - Vikas Kumar
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
| | - Shivani Daksh
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
| | - Nikhil Kumar
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
| | - M. Thirumal
- Department of Chemistry, University of Delhi, New Delhi, India
| | - Anupama Datta
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, New Delhi, India
- *Correspondence: Anupama Datta, ;
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23
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Neuroimaging Modalities in Alzheimer’s Disease: Diagnosis and Clinical Features. Int J Mol Sci 2022; 23:ijms23116079. [PMID: 35682758 PMCID: PMC9181385 DOI: 10.3390/ijms23116079] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 11/17/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disease causing progressive cognitive decline until eventual death. AD affects millions of individuals worldwide in the absence of effective treatment options, and its clinical causes are still uncertain. The onset of dementia symptoms indicates severe neurodegeneration has already taken place. Therefore, AD diagnosis at an early stage is essential as it results in more effective therapy to slow its progression. The current clinical diagnosis of AD relies on mental examinations and brain imaging to determine whether patients meet diagnostic criteria, and biomedical research focuses on finding associated biomarkers by using neuroimaging techniques. Multiple clinical brain imaging modalities emerged as potential techniques to study AD, showing a range of capacity in their preciseness to identify the disease. This review presents the advantages and limitations of brain imaging modalities for AD diagnosis and discusses their clinical value.
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24
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Zuo Z, Kang T, Hu S, Su W, Gan Y, Miao Z, Zhao H, Feng P, Ke B, Li M. A Bioluminescent Probe for Detecting Norepinephrine in Vivo. Anal Chem 2022; 94:6441-6445. [PMID: 35452217 DOI: 10.1021/acs.analchem.2c00460] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
As a neurotransmitter, norepinephrine (NE) is critical for psychiatric conditions, neurodegenerative diseases, and pheochromocytoma. A real-time and noninvasive method for the detection of NE as a tracer to investigate the NE-relevant disease treatment process is urgently desirable. Herein, we successfully developed a turn-on NE bioluminescent probe (NBP), which was grounded on p-toluenethiol deprotectrf by nucleophilic substitution. Compared with other analytes, the NBP exhibited high sensitivity and selectivity in vitro. More importantly, the NBP provides a promising strategy for in vivo imaging of NE in living animals with noninvasive visualization and real-time features.
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Affiliation(s)
- Zeping Zuo
- Laboratory of Anaesthesiology & Critical Care Medicine, Department of Anesthesiology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ting Kang
- Laboratory of Anaesthesiology & Critical Care Medicine, Department of Anesthesiology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Shilong Hu
- Laboratory of Anaesthesiology & Critical Care Medicine, Department of Anesthesiology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Wuyue Su
- Medical College, Tibet University, Lhasa 850000, China
| | - Yu Gan
- Laboratory of Anaesthesiology & Critical Care Medicine, Department of Anesthesiology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhuang Miao
- Laboratory of Anaesthesiology & Critical Care Medicine, Department of Anesthesiology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Hanqing Zhao
- Laboratory of Anaesthesiology & Critical Care Medicine, Department of Anesthesiology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ping Feng
- Institute of Clinical Trials, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Bowen Ke
- Laboratory of Anaesthesiology & Critical Care Medicine, Department of Anesthesiology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Minyong Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
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25
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Feng L, Tian X, Yao D, Yu Z, Huo X, Tian Z, Ning J, Cui J, James TD, Ma X. A practical strategy to develop isoform-selective near-infrared fluorescent probes for human cytochrome P450 enzymes. Acta Pharm Sin B 2022; 12:1976-1986. [PMID: 35847500 PMCID: PMC9279627 DOI: 10.1016/j.apsb.2021.11.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/20/2021] [Accepted: 11/16/2021] [Indexed: 01/08/2023] Open
Affiliation(s)
- Lei Feng
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Xiangge Tian
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Dahong Yao
- School of Pharmaceutical Sciences, Shenzhen Technology University, Shenzhen 518060, China
| | - Zhenlong Yu
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Xiaokui Huo
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Zhenhao Tian
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Jing Ning
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
- Corresponding authors. Tel.: +86 411 86110419.
| | - Jingnan Cui
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Tony D. James
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xiaochi Ma
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
- Corresponding authors. Tel.: +86 411 86110419.
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26
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Galvin J, Curran E, Arteaga F, Goossens A, Aubuchon-Endsley N, McMurray MA, Moore J, Hansen KC, Chial HJ, Potter H, Brodsky JL, Coughlan CM. Proteasome activity modulates amyloid toxicity. FEMS Yeast Res 2022; 22:foac004. [PMID: 35150241 PMCID: PMC8906389 DOI: 10.1093/femsyr/foac004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/14/2021] [Accepted: 02/10/2022] [Indexed: 11/13/2022] Open
Abstract
Alzheimer's disease (AD) is responsible for 60%-80% of identified cases of dementia. While the generation and accumulation of amyloid precursor protein (APP) fragments is accepted as a key step in AD pathogenesis, the precise role of these fragments remains poorly understood. To overcome this deficit, we induced the expression of the soluble C-terminal fragment of APP (C99), the rate-limiting peptide for the generation of amyloid fragments, in yeast that contain thermosensitive mutations in genes encoding proteasome subunits. Our previous work with this system demonstrated that these proteasome-deficient yeast cells, expressing C99 when proteasome activity was blunted, generated amyloid fragments similar to those observed in AD patients. We now report the phenotypic repercussions of inducing C99 expression in proteasome-deficient cells. We show increased levels of protein aggregates, cellular stress and chaperone expression, electron-dense accumulations in the nuclear envelope/ER, abnormal DNA condensation, and an induction of apoptosis. Taken together, these findings suggest that the generation of C99 and its associated fragments in yeast cells with compromised proteasomal activity results in phenotypes that may be relevant to the neuropathological processes observed in AD patients. These data also suggest that this yeast model should be useful for testing therapeutics that target AD-associated amyloid, since it allows for the assessment of the reversal of the perturbed cellular physiology observed when degradation pathways are dysfunctional.
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Affiliation(s)
- John Galvin
- Department of Biological Sciences, University of Denver , Denver CO 80208, United States
| | - Elizabeth Curran
- Department of Biological Sciences, University of Denver , Denver CO 80208, United States
| | - Francisco Arteaga
- Department of Biological Sciences, University of Denver , Denver CO 80208, United States
| | - Alicia Goossens
- Department of Biological Sciences, University of Denver , Denver CO 80208, United States
| | - Nicki Aubuchon-Endsley
- Department of Biological Sciences, University of Denver , Denver CO 80208, United States
| | - Michael A McMurray
- Department of Cell and Developmental Biology, Anschutz Medical Campus, Aurora, CO 80045, United States
| | - Jeffrey Moore
- Department of Cell and Developmental Biology, Anschutz Medical Campus, Aurora, CO 80045, United States
| | - Kirk C Hansen
- Department of Biochemistry and Molecular Genetics, Anschutz Medical Campus, Aurora, CO 80045, United States
| | - Heidi J Chial
- University of Colorado Alzheimer's and Cognition Center (CUACC), Department of Neurology, School of Medicine, Anschutz Medical Campus, Aurora 80045, United States
| | - Huntington Potter
- University of Colorado Alzheimer's and Cognition Center (CUACC), Department of Neurology, School of Medicine, Anschutz Medical Campus, Aurora 80045, United States
| | - Jeffrey L Brodsky
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Christina M Coughlan
- University of Colorado Alzheimer's and Cognition Center (CUACC), Department of Neurology, School of Medicine, Anschutz Medical Campus, Aurora 80045, United States
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27
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Tian Z, Yan F, Tian X, Feng L, Cui J, Deng S, Zhang B, Xie T, Huang S, Ma X. A NIR fluorescent probe for Vanin-1 and its applications in imaging, kidney injury diagnosis, and the development of inhibitor. Acta Pharm Sin B 2022; 12:316-325. [PMID: 35127388 PMCID: PMC8799884 DOI: 10.1016/j.apsb.2021.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/22/2021] [Accepted: 05/27/2021] [Indexed: 02/07/2023] Open
Abstract
Vanin-1 is an amidohydrolase that catalyses the conversion of pantetheine into the amino-thiol cysteamine and pantothenic acid (coenzyme A precursor), which plays a vital role in multiple physiological and pathological processes. In this study, an enzyme-activated near-infrared (NIR) fluorescent probe (DDAV) has been constructed for sensitively detecting Vanin-1 activity in complicated biosamples on the basis of its catalytic characteristics. DDAV exhibited a high selectivity and sensitivity toward Vanin-1 and was successfully applied to the early diagnosis of kidney injury in cisplatin-induced kidney injury model. In addition, DDAV could serve as a visual tool for in situ imaging endogenous Vanin-1 in vivo. More importantly, Enterococcus faecalis 20247 which possessed high expression of Vanin-1 was screened out from intestinal bacteria using DDAV, provided useful guidance for the rational use of NSAIDs in clinic. Finally, oleuropein as a potent natural inhibitor for Vanin-1 was discovered from herbal medicines library using a high-throughput screening method using DDAV, which held great promise for clinical therapy of inflammatory bowel disease.
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28
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Wagh SB, Maslivetc VA, La Clair JJ, Kornienko A. Lessons in Organic Fluorescent Probe Discovery. Chembiochem 2021; 22:3109-3139. [PMID: 34062039 PMCID: PMC8595615 DOI: 10.1002/cbic.202100171] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/22/2021] [Indexed: 02/03/2023]
Abstract
Fluorescent probes have gained profound use in biotechnology, drug discovery, medical diagnostics, molecular and cell biology. The development of methods for the translation of fluorophores into fluorescent probes continues to be a robust field for medicinal chemists and chemical biologists, alike. Access to new experimental designs has enabled molecular diversification and led to the identification of new approaches to probe discovery. This review provides a synopsis of the recent lessons in modern fluorescent probe discovery.
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Affiliation(s)
- Sachin B Wagh
- The Department of Chemistry and Biochemistry, Texas State University, San Marcos, USA
| | - Vladimir A Maslivetc
- The Department of Chemistry and Biochemistry, Texas State University, San Marcos, USA
| | - James J La Clair
- Xenobe Research Institute, P. O. Box 3052, San Diego, CA, 92163-1062, USA
| | - Alexander Kornienko
- The Department of Chemistry and Biochemistry, Texas State University, San Marcos, USA
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29
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Abstract
Magnetic resonance imaging (MRI) is one of the most powerful imaging tools today, capable of displaying superior soft-tissue contrast. This review discusses developments in the field of 19 F MRI multimodal probes in combination with optical fluorescence imaging (OFI), 1 H MRI, chemical exchange saturation transfer (CEST) MRI, ultrasonography (USG), X-ray computed tomography (CT), single photon emission tomography (SPECT), positron emission tomography (PET), and photoacoustic imaging (PAI). In each case, multimodal 19 F MRI probes compensate for the deficiency of individual techniques and offer improved sensitivity or accuracy of detection over unimodal counterparts. Strategies for designing 19 F MRI multimodal probes are described with respect to their structure, physicochemical properties, biocompatibility, and the quality of images.
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Affiliation(s)
- Dawid Janasik
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego, 4, 44-100, Gliwice, Poland
| | - Tomasz Krawczyk
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego, 4, 44-100, Gliwice, Poland
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30
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Peng K, Lozach PY. Rift Valley fever virus: a new avenue of research on the biological functions of amyloids? Future Virol 2021. [DOI: 10.2217/fvl-2021-0094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rift Valley fever is a mosquito-borne viral zoonosis that was first discovered in the Great Rift Valley, Kenya, in 1930. Rift Valley fever virus (RVFV) primarily infects domestic animals and humans, with clinical outcomes ranging from self-limiting febrile illness to acute hepatitis and encephalitis. The virus left Africa a few decades ago, and there is a risk of introduction into southern Europe and Asia. From this perspective, we introduce RVFV and focus on the capacity of its virulence factor, the nonstructural protein NSs, to form amyloid-like fibrils. Here, we discuss the implications for the NSs biological function, the ability of RVFV to evade innate immunity, and RVFV virulence and neurotoxicity.
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Affiliation(s)
- Ke Peng
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, Hubei, 430071, PR China
- University of the Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Pierre-Yves Lozach
- Cell Networks, CIID (Cluster of Excellence & Center for Integrative Infectious Disease Research), Virology, University Hospital Heidelberg, 69120, Heidelberg, Germany
- University of Lyon, INRAE, EPHE, IVPC (Infections Virales et Pathologie Comparée), 69007, Lyon, France
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31
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Wang H, Wang X, Li P, Dong M, Yao SQ, Tang B. Fluorescent probes for visualizing ROS-associated proteins in disease. Chem Sci 2021; 12:11620-11646. [PMID: 34659698 PMCID: PMC8442704 DOI: 10.1039/d1sc02165f] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/06/2021] [Indexed: 12/14/2022] Open
Abstract
Abnormal expression of proteins, including catalytic and expression dysfunction, is directly related to the development of various diseases in living organisms. Reactive oxygen species (ROS) could regulate protein expression by redox modification or cellular signal pathway and thus influence the development of disease. Determining the expression level and activity of these ROS-associated proteins is of considerable importance in early-stage disease diagnosis and the identification of new drug targets. Fluorescence imaging technology has emerged as a powerful tool for specific in situ imaging of target proteins by virtue of its non-invasiveness, high sensitivity and good spatiotemporal resolution. In this review, we summarize advances made in the past decade for the design of fluorescent probes that have contributed to tracking ROS-associated proteins in disease. We envision that this review will attract significant attention from a wide range of researchers in their utilization of fluorescent probes for in situ investigation of pathological processes synergistically regulated by both ROS and proteins.
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Affiliation(s)
- Hui Wang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University Jinan 250014 P. R. China
| | - Xin Wang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University Jinan 250014 P. R. China
| | - Ping Li
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University Jinan 250014 P. R. China
| | - Mingyan Dong
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University Jinan 250014 P. R. China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore Singapore 117543 Singapore
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University Jinan 250014 P. R. China
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Patel K, Shah SKH, Prabhakaran P. Aggregation-induced emission materials for protein fibrils imaging. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2021; 185:113-136. [PMID: 34782102 DOI: 10.1016/bs.pmbts.2021.06.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Protein fibrillation is linked to many devastating diseases including neurodegenerative disorders. Fluorescence probes play a significant role in the detection of amyloid aggregates, monitoring amyloid kinetics, and in the development of amyloid inhibitors. Despite the considerable progress in this area, the mechanism of amyloid fibril formation in vivo is not completely understood. Recent studies in amyloidosis indicate that oligomers and prefibrillar species are more cytotoxic than the fibrils. Hence, early diagnosis of fibrillation has high therapeutical relevance. The gold standard for amyloid staining is thioflavin-T and its major drawbacks are aggregation caused quenching and inability in the detection of oligomers. New amyloid staining probes with novel properties are highly desirable as they can give valuable insights into the complicated process and can replace conventional probes. Aggregation-induced emission probes (AIE-probes) with desirable features are promising candidates in protein fibrils imaging. AIE probes in staining different amyloid fibrils, monitoring amyloid kinetics, and early-stage conformers are reported. Other remarkable features are they can be modified as NIR probes, multifunctional probes, theranostic probes, and super-resolution imaging probes. We aim to provide a broad perspective on the progress attained with AIE probes in protein fibrils imaging and thereby emphasizing the scope of these smart probes in translative research.
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Affiliation(s)
- Karma Patel
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, India
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Telegin FY, Marfin YS. New insights into quantifying the solvatochromism of BODIPY based fluorescent probes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 255:119683. [PMID: 33799189 DOI: 10.1016/j.saa.2021.119683] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/19/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
A simple semiempiric phenomenological approach is developed for quantifying the solvent effect on the absorption and emission properties of BODIPYs. It is based on a new rule describing the linear relationship between the difference (Stokes shift) and the sum (double Gibbs free energy of electron transfer) for absorption and emission wavenumbers derived from a combination of solvent functions of Liptay theory. This rule is correspondent to changes of dipole moments in the ground and excited states. High reliability and advantages of the developed approach in comparison with traditional methods of the analysis of the solvatochromism based on Dimroth-Reichard and Lippert-Mataga solvent scales are illustrated for selected BODIPYs exhibiting positive, negative, and near-zero solvatochromism.
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Affiliation(s)
- Felix Y Telegin
- Department of Inorganic Chemistry, Ivanovo State University of Chemistry and Technology 7, Sheremetevsky Ave, Ivanovo 153000, Russia.
| | - Yuriy S Marfin
- Department of Inorganic Chemistry, Ivanovo State University of Chemistry and Technology 7, Sheremetevsky Ave, Ivanovo 153000, Russia
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Bodea SV, Westmeyer GG. Photoacoustic Neuroimaging - Perspectives on a Maturing Imaging Technique and its Applications in Neuroscience. Front Neurosci 2021; 15:655247. [PMID: 34220420 PMCID: PMC8253050 DOI: 10.3389/fnins.2021.655247] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 03/08/2021] [Indexed: 11/13/2022] Open
Abstract
A prominent goal of neuroscience is to improve our understanding of how brain structure and activity interact to produce perception, emotion, behavior, and cognition. The brain's network activity is inherently organized in distinct spatiotemporal patterns that span scales from nanometer-sized synapses to meter-long nerve fibers and millisecond intervals between electrical signals to decades of memory storage. There is currently no single imaging method that alone can provide all the relevant information, but intelligent combinations of complementary techniques can be effective. Here, we thus present the latest advances in biomedical and biological engineering on photoacoustic neuroimaging in the context of complementary imaging techniques. A particular focus is placed on recent advances in whole-brain photoacoustic imaging in rodent models and its influential role in bridging the gap between fluorescence microscopy and more non-invasive techniques such as magnetic resonance imaging (MRI). We consider current strategies to address persistent challenges, particularly in developing molecular contrast agents, and conclude with an overview of potential future directions for photoacoustic neuroimaging to provide deeper insights into healthy and pathological brain processes.
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Affiliation(s)
- Silviu-Vasile Bodea
- Department of Chemistry and School of Medicine, Technical University of Munich (TUM), Munich, Germany
- Institute for Synthetic Biomedicine, Helmholtz Center Munich, Munich, Germany
| | - Gil Gregor Westmeyer
- Department of Chemistry and School of Medicine, Technical University of Munich (TUM), Munich, Germany
- Institute for Synthetic Biomedicine, Helmholtz Center Munich, Munich, Germany
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35
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Whitmore CA, Boules MI, Behof WJ, Haynes JR, Koktysh D, Rosenberg AJ, Tantawy MN, Pham W. Design, Synthesis, and Validation of a Novel [ 11C]Promethazine PET Probe for Imaging Abeta Using Autoradiography. Molecules 2021; 26:molecules26082182. [PMID: 33920113 PMCID: PMC8070574 DOI: 10.3390/molecules26082182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/03/2021] [Accepted: 04/07/2021] [Indexed: 11/16/2022] Open
Abstract
Promethazine, an antihistamine drug used in the clinical treatment of nausea, has been demonstrated the ability to bind Abeta in a transgenic mouse model of Alzheimer’s disease. However, so far, all of the studies were performed in vitro using extracted tissues. In this work, we report the design and synthesis of a novel [11C]promethazine PET radioligand for future in vivo studies. The [11C]promethazine was isolated by RP-HPLC with radiochemical purity >95% and molar activity of 48 TBq/mmol. The specificity of the probe was demonstrated using human hippocampal tissues via autoradiography.
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Affiliation(s)
- Clayton A. Whitmore
- Vanderbilt University Medical Center, Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, USA; (C.A.W.); (M.I.B.); (W.J.B.); (J.R.H.); (A.J.R.); (M.N.T.)
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Mariam I. Boules
- Vanderbilt University Medical Center, Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, USA; (C.A.W.); (M.I.B.); (W.J.B.); (J.R.H.); (A.J.R.); (M.N.T.)
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - William J. Behof
- Vanderbilt University Medical Center, Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, USA; (C.A.W.); (M.I.B.); (W.J.B.); (J.R.H.); (A.J.R.); (M.N.T.)
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Justin R. Haynes
- Vanderbilt University Medical Center, Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, USA; (C.A.W.); (M.I.B.); (W.J.B.); (J.R.H.); (A.J.R.); (M.N.T.)
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Dmitry Koktysh
- Department of Chemistry, Vanderbilt University, VU Station, Nashville, TN 37235, USA;
- Vanderbilt Institute of Nanoscale Science and Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Adam J. Rosenberg
- Vanderbilt University Medical Center, Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, USA; (C.A.W.); (M.I.B.); (W.J.B.); (J.R.H.); (A.J.R.); (M.N.T.)
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Mohammed N. Tantawy
- Vanderbilt University Medical Center, Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, USA; (C.A.W.); (M.I.B.); (W.J.B.); (J.R.H.); (A.J.R.); (M.N.T.)
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Wellington Pham
- Vanderbilt University Medical Center, Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, USA; (C.A.W.); (M.I.B.); (W.J.B.); (J.R.H.); (A.J.R.); (M.N.T.)
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Vanderbilt Institute of Nanoscale Science and Engineering, Vanderbilt University, Nashville, TN 37235, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37232, USA
- Vanderbilt Ingram Cancer Center, Nashville, TN 37232, USA
- Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37232, USA
- Vanderbilt Memory and Alzheimer’s Center, Vanderbilt University Medical Center, Nashville, TN 37212, USA
- Institute of Imaging Science, Vanderbilt University, 1161, 21st Avenue South, Nashville, TN 37232, USA
- Correspondence: ; Tel.: +1-(615)-936-7621
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Warerkar OD, Mudliar NH, Singh PK. A hemicyanine based fluorescence turn-on sensor for amyloid fibril detection in the far-red region. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Thapa P, Upadhyay SP, Suo WZ, Singh V, Gurung P, Lee ES, Sharma R, Sharma M. Chalcone and its analogs: Therapeutic and diagnostic applications in Alzheimer's disease. Bioorg Chem 2021; 108:104681. [PMID: 33571811 PMCID: PMC7928223 DOI: 10.1016/j.bioorg.2021.104681] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/15/2020] [Accepted: 01/20/2021] [Indexed: 02/08/2023]
Abstract
Chalcone [(E)-1,3-diphenyl-2-propene-1-one], a small molecule with α, β unsaturated carbonyl group is a precursor or component of many natural flavonoids and isoflavonoids. It is one of the privileged structures in medicinal chemistry. It possesses a wide range of biological activities encouraging many medicinal chemists to study this scaffold for its usefulness to oncology, infectious diseases, virology and neurodegenerative diseases including Alzheimer's disease (AD). Small molecular size, convenient and cost-effective synthesis, and flexibility for modifications to modulate lipophilicity suitable for blood brain barrier (BBB) permeability make chalcones a preferred candidate for their therapeutic and diagnostic potential in AD. This review summarizes and highlights the importance of chalcone and its analogs as single target small therapeutic agents, multi-target directed ligands (MTDLs) as well as molecular imaging agents for AD. The information summarized here will guide many medicinal chemist and researchers involved in drug discovery to consider chalcone as a potential scaffold for the development of anti-AD agents including theranostics.
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Affiliation(s)
- Pritam Thapa
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA.
| | - Sunil P Upadhyay
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
| | - William Z Suo
- Laboratory for Alzheimer's Disease & Aging Research, Veterans Affairs Medical Center, Kansas City, MO 64128, USA
| | - Vikas Singh
- Division of Neurology, KCVA Medical Center, Kansas City, MO, USA
| | - Prajwal Gurung
- Inflammation Program, University of Iowa, Iowa City, IA 52242, USA
| | - Eung Seok Lee
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Ram Sharma
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
| | - Mukut Sharma
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
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38
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Zhang Y, Ding C, Li C, Wang X. Advances in fluorescent probes for detection and imaging of amyloid-β peptides in Alzheimer's disease. Adv Clin Chem 2021; 103:135-190. [PMID: 34229849 DOI: 10.1016/bs.acc.2020.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Amyloid plaques generated from the accumulation of amyloid-β peptides (Aβ) fibrils in the brain is one of the main hallmarks of Alzheimer's disease (AD), a most common neurodegenerative disorder. Aβ aggregation can produce neurotoxic oligomers and fibrils, which has been widely accepted as the causative factor in AD pathogenesis. Accordingly, both soluble oligomers and insoluble fibrils have been considered as diagnostic biomarkers for AD. Among the existing analytical methods, fluorometry using fluorescent probes has exhibited promising potential in quantitative detection and imaging of both soluble and insoluble Aβ species, providing a valuable approach for the diagnosis and drug development of AD. In this review, the most recent advances in the fluorescent probes for soluble or insoluble Aβ aggregates are discussed in terms of design strategy, probing mechanism, and potential applications. In the end, future research directions of fluorescent probes for Aβ species are also proposed.
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Affiliation(s)
- Yunhua Zhang
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, PR China
| | - Cen Ding
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, PR China
| | - Changhong Li
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, PR China
| | - Xiaohui Wang
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, PR China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, PR China.
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Ma S, Chen G, Xu J, Liu Y, Li G, Chen T, Li Y, James TD. Current strategies for the development of fluorescence-based molecular probes for visualizing the enzymes and proteins associated with Alzheimer’s disease. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213553] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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40
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Fueyo-González F, González-Vera JA, Alkorta I, Infantes L, Jimeno ML, Aranda P, Acuña-Castroviejo D, Ruiz-Arias A, Orte A, Herranz R. Environment-Sensitive Probes for Illuminating Amyloid Aggregation In Vitro and in Zebrafish. ACS Sens 2020; 5:2792-2799. [PMID: 32551591 DOI: 10.1021/acssensors.0c00587] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The aberrant aggregation of certain peptides and proteins, forming extracellular plaques of fibrillar material, is one of the hallmarks of amyloid diseases, such as Alzheimer's and Parkinson's. Herein, we have designed a new family of solvatochromic dyes based on the 9-amino-quinolimide moiety capable of reporting during the early stages of amyloid fibrillization. We have rationally improved the photophysical properties of quinolimides by placing diverse amino groups at the 9-position of the quinolimide core, leading to higher solvatochromic and fluorogenic character and higher lifetime dependence on the hydrophobicity of the environment, which represent excellent properties for the sensitive detection of prefibrillar aggregates. Among the different probes prepared, the 9-azetidinyl-quinolimide derivative showed striking performance in the following β-amyloid peptide (Aβ) aggregation in solution in real time and identifying the formation of different types of early oligomers of Aβ, the most important species linked to cytotoxicity, using novel, multidimensional fluorescence microscopy, with one- or two-photon excitation. Interestingly, the new dye allowed the visualization of proteinaceous inclusion bodies in a zebrafish model with neuronal damage induced by the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine. Our results support the potential of the novel fluorophores as powerful tools to follow amyloid aggregation using fluorescence microscopy in vivo, revealing heterogeneous populations of different types of aggregates and, more broadly, to study protein interactions.
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Affiliation(s)
| | - Juan A. González-Vera
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Departamento de Fisicoquímica, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente, Facultad de Farmacia, Universidad de Granada, Campus Cartuja, 18071 Granada, Spain
| | - Ibon Alkorta
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Lourdes Infantes
- Instituto de Química Física Rocasolano, IQFR-CSIC, Serrano 119, 28006 Madrid, Spain
| | - Maria Luisa Jimeno
- Centro de Química Orgánica Lora Tamayo (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Paula Aranda
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, 18016 Granada, Spain
| | - Dario Acuña-Castroviejo
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, 18016 Granada, Spain
- CIBER de Fragilidad y Envejecimiento, Ibs. Granada, Unidad de Gestión Clínica de Laboratorios Clínicos, Hospital Universitario San Cecilio, 18016 Granada, Spain
| | - Alvaro Ruiz-Arias
- Departamento de Fisicoquímica, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente, Facultad de Farmacia, Universidad de Granada, Campus Cartuja, 18071 Granada, Spain
| | - Angel Orte
- Departamento de Fisicoquímica, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente, Facultad de Farmacia, Universidad de Granada, Campus Cartuja, 18071 Granada, Spain
| | - Rosario Herranz
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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41
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Kaur A, New EJ, Sunde M. Strategies for the Molecular Imaging of Amyloid and the Value of a Multimodal Approach. ACS Sens 2020; 5:2268-2282. [PMID: 32627533 DOI: 10.1021/acssensors.0c01101] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Protein aggregation has been widely implicated in neurodegenerative diseases such as Alzheimer's disease, frontotemporal dementia, Parkinson's disease, and Huntington disease, as well as in systemic amyloidoses and conditions associated with localized amyloid deposits, such as type-II diabetes. The pressing need for a better understanding of the factors governing protein assembly has driven research for the development of molecular sensors for amyloidogenic proteins. To date, a number of sensors have been developed that report on the presence of protein aggregates utilizing various modalities, and their utility demonstrated for imaging protein aggregation in vitro and in vivo. Analysis of these sensors highlights the various advantages and disadvantages of the different imaging modalities and makes clear that multimodal sensors with properties amenable to more than one imaging technique need to be developed. This critical review highlights the key molecular scaffolds reported for molecular imaging modalities such as fluorescence, positron emission tomography, single photon emission computed tomography, and magnetic resonance imaging and includes discussion of the advantages and disadvantages of each modality, and future directions for the design of amyloid sensors. We also discuss the recent efforts focused on the design and development of multimodal sensors and the value of cross-validation across multiple modalities.
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Affiliation(s)
- Amandeep Kaur
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, New South Wales 2006, Australia
- The University of Sydney, Nano Institute (Sydney Nano), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Elizabeth J. New
- The University of Sydney, Nano Institute (Sydney Nano), The University of Sydney, Sydney, New South Wales 2006, Australia
- The University of Sydney, School of Chemistry, Faculty of Science, Sydney, New South Wales 2006, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Margaret Sunde
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, New South Wales 2006, Australia
- The University of Sydney, Nano Institute (Sydney Nano), The University of Sydney, Sydney, New South Wales 2006, Australia
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Uddin A, Roy B, Jose GP, Hossain SS, Hazra P. Sensing and modulation of amyloid fibrils by photo-switchable organic dots. NANOSCALE 2020; 12:16805-16818. [PMID: 32761038 DOI: 10.1039/d0nr04312e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Abnormal aggregation of amyloidogenic proteins (like Aβ 42, amylin, α-synuclein, insulin) and the deposition of these aggregates is believed to be associated with several diseases known as amyloidosis. The pathway of aggregation involves three distinct phases: the oligomeric, elongation and plateau phases. Among them, the oligomeric phase of Aβ 42 and α-synuclein involves the generation of transient oligomeric species suspected to cause several neurological disorders, including Alzheimer's and Parkinson's diseases. Over the past few years, scientists have devoted much more effort to devising new fluorescent molecular probes to estimate the mechanisms of formation, and have gained vital information about possible therapeutic routes for amyloidosis. However, such fluorescent probes face serious limitations because of self-quenching at high concentrations of the probe; therefore, they are inappropriate for quantitative analysis and bio-imaging experiments. Hence, smart biocompatible fluorescent probes are indispensable, as they not only overcome the drawbacks of conventional fluorescent probes, but also have the potential ability to fight amyloidosis through modulation of the pathways involved. In this work, for the first time we introduce a series of promising photo-switchable aggregation-induced emission (AIE) dots (DPAPMI, CPMI) and aggregation caused quenching (ACQ) dots (DMAPMI) which can detect amyloid fibrils in terms of switching and enhancing their fluorescence emission. Interestingly, the organic dots enhance the aggregation rate of insulin by speeding up the microscopic processes, specifically secondary nucleation (with rate constant k2) and the elongation process (with rate constant k+). Moreover, the comparison of kinetics studies with ThT suggests that our organic dots can sense pre-fibrillar aggregates of insulin during the aggregation process, which may be beneficial for the early detection of amyloid fibrils. In summary, our study indicates that these organic dots can be used for the imaging and early stage detection of amyloid fibril formation and the modulation of amyloid formation pathways.
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Affiliation(s)
- Aslam Uddin
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune, Maharashtra, India.
| | - Bibhisan Roy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune, Maharashtra, India.
| | - Gregor P Jose
- Department of Biology, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune, Maharashtra, India
| | - Sk Saddam Hossain
- School of Chemistry, University of Hyderabad, Hyderabad-500 046, India
| | - Partha Hazra
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune, Maharashtra, India. and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune, Maharashtra, India
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43
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Dual-functional AIE fluorescent probes for imaging β-amyloid plaques and lipid droplets. Anal Chim Acta 2020; 1133:109-118. [PMID: 32993862 DOI: 10.1016/j.aca.2020.07.073] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 07/17/2020] [Accepted: 07/30/2020] [Indexed: 12/31/2022]
Abstract
Alzheimer's disease (AD) is a chronic neurodegenerative disease. Better imaging and early diagnosis of biomarkers of AD is extremely important for therapeutic interventions. The amyloid cascade hypothesis and its revised version identify insoluble β-amyloid deposition as a good diagnostic biomarker for AD. Moreover, lipid droplets may also act as an auxiliary biomarker related to AD pathology based on recent studies. Herein, two quinoline-based AIE probes were designed and synthesized for the imaging of Aβ plaques and lipid droplets. The probes exhibited remarkable turn-on fluorescence enhancements with the Aβ aggregates. The lipid droplets-targeting probe FB exhibited high selectivity and binding affinity towards the Aβ aggregates with a detection limit as low as 26.9 nM. Furthermore, FB was capable of readily imaging Aβ plaques and lipid droplets at the cellular level and in brain sections of transgenic AD mice. The probe FB can serve as a promising tool for developing early diagnosis and innovative therapeutics of AD.
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Yeo SK, Shepelytskyi Y, Grynko V, Albert MS. Molecular Imaging of Fluorinated Probes for Tau Protein and Amyloid-β Detection. Molecules 2020; 25:molecules25153413. [PMID: 32731418 PMCID: PMC7435578 DOI: 10.3390/molecules25153413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 12/16/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common form of dementia and results in progressive neurodegeneration. The incidence rate of AD is increasing, creating a major public health issue. AD is characterized by neurofibrillary tangles (NFTs) composed of hyperphosphorylated tau protein and senile plaques composed of amyloid-β (Aβ). Currently, a definitive diagnosis of AD is accomplished post-mortem. Thus, the use of molecular probes that are able to selectively bind to NFTs or Aβ can be valuable tools for the accurate and early diagnosis of AD. The aim of this review is to summarize and highlight fluorinated molecular probes that can be used for molecular imaging to detect either NFTs or Aβ. Specifically, fluorinated molecular probes used in conjunction with 19F MRI, PET, and fluorescence imaging will be explored.
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Affiliation(s)
- Sarah K. Yeo
- Biology Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada;
| | - Yurii Shepelytskyi
- Chemistry and Materials Science Program, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (Y.S.); (V.G.)
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
| | - Vira Grynko
- Chemistry and Materials Science Program, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (Y.S.); (V.G.)
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
| | - Mitchell S. Albert
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
- Chemistry Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
- Northern Ontario School of Medicine, Thunder Bay, ON P7B 5E1, Canada
- Correspondence: ; Tel.: +1-807-355-9191
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45
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Choi JW, Ju YH, Choi Y, Hyeon SJ, Gadhe CG, Park JH, Kim MS, Baek S, Kim Y, Park KD, Pae AN, Ryu H, Lee CJ, Cho BR. PyrPeg, a Blood-Brain-Barrier-Penetrating Two-Photon Imaging Probe, Selectively Detects Neuritic Plaques, Not Tau Aggregates. ACS Chem Neurosci 2020; 11:1801-1810. [PMID: 32421307 DOI: 10.1021/acschemneuro.0c00211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Amyloid-β (Aβ) tracers have made a significant contribution to the treatment of Alzheimer's disease (AD) by allowing a definitive diagnosis in living patients. Unfortunately, they also detect tau and other protein aggregates that compromise test accuracy. In AD research, there has been a growing need for in vivo Aβ imaging by two-photon microscopy, which enables deep-brain-fluorescence imaging. There is no suitable neuritic Aβ probe for two-photon microscopy. Here we report PyrPeg, a novel two-photon fluorescent probe that can selectively target insoluble Aβ rather than tau and α-synuclein aggregates in the AD model brain and postmortem brain. When injected intravenously, PyrPeg detects the neuritic plaques in the brain and olfactory bulb of the AD model. PyrPeg may serve as a useful blood-brain-barrier-penetrating diagnostic tool for optical and functional monitoring of insoluble forms of Aβ aggregates in the living AD brain.
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Affiliation(s)
- Ji-Woo Choi
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Yeon Ha Ju
- Center for Cognition and Sociality, Institute for Basic Science (IBS), 55 Expo-ro, Yuseong-gu, Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Yunsook Choi
- Center for Functional Connectomics, Korea Institute of Science and Technology (KIST), 5 Hwarangro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut 06511, United States
| | - Seung Jae Hyeon
- Centers for Neuromedicine and Neuroscience, Brain Science Institute, KIST, 5 Hwarangro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Changdev G. Gadhe
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, KIST, 5 Hwarangro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Jong-Hyun Park
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, KIST, 5 Hwarangro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Mun Seok Kim
- Department of Chemistry, Daejin University, 1007 Hoguk-ro, Pocheon-si, Gyeonggi-do 11159, Republic of Korea
| | - Seungyeop Baek
- Integrated Science and Engineering Division, Department of Pharmacy and Department of Biotechnology, and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Republic of Korea
| | - YoungSoo Kim
- Integrated Science and Engineering Division, Department of Pharmacy and Department of Biotechnology, and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Republic of Korea
| | - Ki Duk Park
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, KIST, 5 Hwarangro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Ae Nim Pae
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, KIST, 5 Hwarangro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hoon Ryu
- Centers for Neuromedicine and Neuroscience, Brain Science Institute, KIST, 5 Hwarangro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Boston University Alzheimer’s Disease Center (BU ADC) and Department of Neurology, Boston University School of Medicine, Boston, Massachusetts 02118, United States
| | - C. Justin Lee
- Center for Cognition and Sociality, Institute for Basic Science (IBS), 55 Expo-ro, Yuseong-gu, Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Bong Rae Cho
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemistry, Daejin University, 1007 Hoguk-ro, Pocheon-si, Gyeonggi-do 11159, Republic of Korea
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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Yang X, Feng P, Ma L, Kang T, Hu S, Hai A, Ke B, Liu J, Li M. Biological applications of a turn-on bioluminescent probe for monitoring sulfite oxidase deficiency in vivo. Eur J Med Chem 2020; 200:112476. [PMID: 32492597 DOI: 10.1016/j.ejmech.2020.112476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/03/2020] [Accepted: 05/16/2020] [Indexed: 02/08/2023]
Abstract
Sulfites are widely used as preservative and antioxidant additives in food and drug. A non-invasive method for in vivo imaging of sulfite represents a powerful tool for estimating its potential effects in living organisms. Herein, we report the design, development, and application of sulfite bioluminescent probes (SBPs) for the analyte-specific detection of sulfite through sulfite-mediated intramolecular cleavage. Among them, SBP-1 exhibited the excellent responsivity, high selectivity and sensitivity. By taking advantage of this probe, the first in vivo imaging of sulfate was successfully carried out, not only to trace exogenous sulfite level in living animal, but also to investigate endogenous sulfite in a sulfite oxidase deficiency model.
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Affiliation(s)
- Xi Yang
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, 610072, China
| | - Ping Feng
- Institute of Clinical Trials, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lin Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong, 250012, China
| | - Ting Kang
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Shilong Hu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong, 250012, China
| | - Ao Hai
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Bowen Ke
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jin Liu
- Laboratory of Anesthesia and Critical Care Medicine, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Minyong Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong, 250012, China.
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Li X, Lu J, Xu Y, Wang J, Qiu X, Fan L, Li B, Liu W, Mao F, Zhu J, Shen X, Li J. Discovery of nitazoxanide-based derivatives as autophagy activators for the treatment of Alzheimer's disease. Acta Pharm Sin B 2020; 10:646-666. [PMID: 32322468 PMCID: PMC7161708 DOI: 10.1016/j.apsb.2019.07.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/03/2019] [Accepted: 07/17/2019] [Indexed: 12/26/2022] Open
Abstract
Drug repurposing is an efficient strategy for new drug discovery. Our latest study found that nitazoxanide (NTZ), an approved anti-parasite drug, was an autophagy activator and could alleviate the symptom of Alzheimer's disease (AD). In order to further improve the efficacy and discover new chemical entities, a series of NTZ-based derivatives were designed, synthesized, and evaluated as autophagy activator against AD. All compounds were screened by the inhibition of phosphorylation of p70S6K, which was the direct substrate of mammalian target of rapamycin (mTOR) and its phosphorylation level could reflect the mTOR-dependent autophagy level. Among these analogs, compound 22 exhibited excellent potency in promoting β-amyloid (Aβ) clearance, inhibiting tau phosphorylation, as well as stimulating autophagy both in vitro and in vivo. What's more, 22 could effectively improve the memory and cognitive impairments in APP/PS1 transgenic AD model mice. These results demonstrated that 22 was a potential candidate for the treatment of AD.
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Key Words
- AChEIs, acetylcholinesterase inhibitors
- AD, Alzheimer's disease
- APP, amyloid precursor protein
- Alzheimer's disease
- Autophagy
- Aβ, β-amyloid
- BBB, blood–brain barrier
- CNS, central nervous system
- MWM, Morris Water Maze
- NCEs, new chemical entities
- NFTs, neurofibrillary tangles
- NMDA, N-methyl-d-aspartate
- NTZ, nitazoxanide
- Nitazoxanide
- PAMPA, parallel artificial membrane permeation assay
- PBL, porcine brain lipid
- SPs, senile plaques
- Tau protein
- WORT, wortmannin
- mTOR, mammalian target of rapamycin
- β-amyloid
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Wang H, Zhang J, Dou F, Chen Z. A near-infrared fluorescent probe quinaldine red lights up the β-sheet structure of amyloid proteins in mouse brain. Biosens Bioelectron 2020; 153:112048. [PMID: 32056662 DOI: 10.1016/j.bios.2020.112048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/19/2020] [Accepted: 01/22/2020] [Indexed: 01/15/2023]
Abstract
In this report, we describe a near-infrared fluorescent probe called quinaldine red (QR) which lights up the β-sheet structure of amyloid fibrils. The photochemical and biophysical properties of QR along with other canonical amyloid probes in the presence of protein fibrils were investigated by using fluorescence spectroscopy, confocal fluorescent microscopy and isothermal titration calorimetry. Moreover, the binding sites and interaction mode between QR and insulin fibrils were calculated based on molecule docking. Among these amyloid probes, QR showed several advantages including strong supramolecular force, near-infrared emission, high sensitivity and resistance to bleaching. A linear response of the fluorescence intensity of QR towards fibril samples in the presence of sera was visualized in the range of 1-30 μM, with the limit of detection (LOD) of 2.31 μM. The recovery and relative standard deviation (RSD) of the proposed method for the determination of protein fibrils was 90.4%-99.2% and 3.05%-3.47%, respectively. Finally, QR can be fluorescently lighted up when meeting the aberrant protein aggregates of pathogenic mice. We recommend QR as a novel and excellent alternative tool for monitoring conformational transition of amyloid proteins.
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Affiliation(s)
- Haojie Wang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry and College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China
| | - Jianxiang Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning and Beijing Key Laboratory of Genetic Engineering Drugs & Biotechnology, College of Life Sciences, Beijing Normal University, Beijing, PR China
| | - Fei Dou
- State Key Laboratory of Cognitive Neuroscience and Learning and Beijing Key Laboratory of Genetic Engineering Drugs & Biotechnology, College of Life Sciences, Beijing Normal University, Beijing, PR China.
| | - Zhijun Chen
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry and College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China.
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Leitão MIPS, Rama Raju B, Cerqueira NMFSA, Sousa MJ, Gonçalves MST. Benzo[a]phenoxazinium chlorides: Synthesis, antifungal activity, in silico studies and evaluation as fluorescent probes. Bioorg Chem 2020; 98:103730. [PMID: 32199304 DOI: 10.1016/j.bioorg.2020.103730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/05/2020] [Accepted: 03/05/2020] [Indexed: 12/16/2022]
Abstract
Four new benzo[a]phenoxazinium chlorides with combinations of chloride, ethyl ester and methyl as terminals of the amino substituents were synthesized. These compounds were characterized and their optical properties were studied in absolute dry ethanol and water. Their antiproliferative activity was tested against Saccharomyces cerevisiae in a broth microdilution assay, along with an array of 36 other benzo[a]phenoxazinium chlorides. Minimum Inhibitory Concentration (MIC) values between 1.56 and >200 µM were observed. Fluorescence microscopy studies, used to assess the intracellular distribution of the dyes, showed that these benzo[a]phenoxazinium chlorides function as efficient and site specific probes for the detection of the vacuole membrane. The added advantage of some of the compounds, that displayed the lower MIC values, was the simultaneous staining of both the vacuole membrane and the perinuclear membrane of endoplasmic reticulum (ER). Molecular docking studies were performed on the human membrane protein oxidosqualene cyclase (OSC), using the crystal structure available on PDB (code 1W6K). The results showed that these most active compounds accommodated better in the active sites of ER enzyme OSC suggesting this enzyme as a potential target. As a whole, the results demonstrate that the benzo[a]phenoxazinium chlorides are interesting alternatives to the available commercial dyes. Changes in the substituents of these compounds can tailor both their staining specificity and antimicrobial activity.
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Affiliation(s)
- Maria Inês P S Leitão
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Centre of Molecular and Environmental Biology/Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - B Rama Raju
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Centre of Physics, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Nuno M F S A Cerqueira
- REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Maria João Sousa
- Centre of Molecular and Environmental Biology/Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - M Sameiro T Gonçalves
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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50
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Conducting Polymer-Based Composite Materials for Therapeutic Implantations: From Advanced Drug Delivery System to Minimally Invasive Electronics. INT J POLYM SCI 2020. [DOI: 10.1155/2020/5659682] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Conducting polymer-based composites have recently becoming popular in both academic research and industrial practices due to their high conductivity, ease of process, and tunable electrical properties. The multifunctional conducting polymer-based composites demonstrated great application potential for in vivo therapeutics and implantable electronics, including drug delivery, neural interfacing, and minimally invasive electronics. In this review article, the state-of-the-art conducting polymer-based composites in the mentioned biological fields are discussed and summarized. The recent progress on the synthesis, structure, properties, and application of the conducting polymer-based composites is presented, aimed at revealing the structure-property relationship and the corresponding functional applications of the conducting polymer-based composites. Furthermore, key issues and challenges regarding the implantation performance of these composites are highlighted in this paper.
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