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Han H, Jang SH, Ahn JK, Lee CY. DNA repair-retarded isothermal CRISPR amplification for rapid, sensitive base excision repair enzyme assay. Anal Chim Acta 2024; 1314:342799. [PMID: 38876521 DOI: 10.1016/j.aca.2024.342799] [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: 03/08/2024] [Revised: 05/05/2024] [Accepted: 05/29/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND As a core enzyme in the base excision repair system, uracil DNA glycosylase (UDG) is indispensable in maintaining genomic integrity and normal cell cycles. Its abnormal activity intervenes in cancers and neurodegerative diseases. Previous UDG assays based on isothermal amplification and Clustered Regularly Interspaced Short Palindromic Repeats/Cas (CRISPR/Cas) system were fine in sensitivity, but exposed to complications in assay flow, time, and probe design. After isothermal amplification, a CRISPR/Cas reagent should be separately added with extra manual steps and its guide RNA (gRNA) should be designed, considering the presence of protospacer adjacent motif (PAM) site. RESULTS We herein describe a UDG-REtarded CRISPR Amplification assay, termed 'URECA'. In URECA, isothermal nucleic acid (NA) amplification and CRISPR/Cas12a system were tightly combined to constitute a one-pot, isothermal CRISPR amplification system. Isothermal NA amplification for a UDG substrate (US) with uracil (U) bases was designed to activate and boost CRISPR/Cas12a reaction. Such scheme enabled us to envision that UDG would halt the isothermal CRISPR amplification reaction by excising U bases and messing up the US. Based on this principle, the assay detected the UDG activity down to 9.17 x 10-4 U/mL in 50 min. With URECA, we fulfilled the recovery test of UDG activities in plasma and urine with high precision and reproducibility and reliably determined UDG activities in cell extracts. Also, we verified its capability to screen candidate UDG inhibitors, showing its potentials in practical application as well as drug discovery. SIGNIFICANCE URECA offers further merits: i) the assay is seamless. Following target recognition, the reactions proceed in one-step without any intervening steps, ii) probe design is simple. Unlike the conventional CRISPR/Cas12a-based assays, URECA does not consider the PAM site in probe design as Cas12a activation relies on instantaneous gRNA binding to single-stranded DNA strands. By rationally designing an enzyme substrate probe to be specific to other enzymes, while keeping a role as a template for isothermal CRISPR amplification, the detection principle of URECA will be expanded to devise biosensors for various enzymes of biological, clinical significance.
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Affiliation(s)
- Hyogu Han
- User Convenience Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan, 15588, South Korea; Department of Chemistry, Gangneung-Wonju National University, Gangneung, 25457, South Korea
| | - Se Hee Jang
- User Convenience Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan, 15588, South Korea; Department of Medical Device Engineering and Management, College of Medicine, Yonsei University, Seoul 03722, South Korea
| | - Jun Ki Ahn
- User Convenience Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan, 15588, South Korea.
| | - Chang Yeol Lee
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea.
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Chan KI, Zhang S, Li G, Xu Y, Cui L, Wang Y, Su H, Tan W, Zhong Z. MYC Oncogene: A Druggable Target for Treating Cancers with Natural Products. Aging Dis 2024; 15:640-697. [PMID: 37450923 PMCID: PMC10917530 DOI: 10.14336/ad.2023.0520] [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: 04/24/2023] [Accepted: 05/20/2023] [Indexed: 07/18/2023] Open
Abstract
Various diseases, including cancers, age-associated disorders, and acute liver failure, have been linked to the oncogene, MYC. Animal testing and clinical trials have shown that sustained tumor volume reduction can be achieved when MYC is inactivated, and different combinations of therapeutic agents including MYC inhibitors are currently being developed. In this review, we first provide a summary of the multiple biological functions of the MYC oncoprotein in cancer treatment, highlighting that the equilibrium points of the MYC/MAX, MIZ1/MYC/MAX, and MAD (MNT)/MAX complexes have further potential in cancer treatment that could be used to restrain MYC oncogene expression and its functions in tumorigenesis. We also discuss the multifunctional capacity of MYC in various cellular cancer processes, including its influences on immune response, metabolism, cell cycle, apoptosis, autophagy, pyroptosis, metastasis, angiogenesis, multidrug resistance, and intestinal flora. Moreover, we summarize the MYC therapy patent landscape and emphasize the potential of MYC as a druggable target, using herbal medicine modulators. Finally, we describe pending challenges and future perspectives in biomedical research, involving the development of therapeutic approaches to modulate MYC or its targeted genes. Patients with cancers driven by MYC signaling may benefit from therapies targeting these pathways, which could delay cancerous growth and recover antitumor immune responses.
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Affiliation(s)
- Ka Iong Chan
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Siyuan Zhang
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Guodong Li
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Yida Xu
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Liao Cui
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, School of Pharmacy, Guangdong Medical University, Zhanjiang 524000, China
| | - Yitao Wang
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Huanxing Su
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Wen Tan
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Zhangfeng Zhong
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
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3
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Nao SC, Huang LS, Shiu-Hin Chan D, Wang X, Li GD, Wu J, Wong CY, Wang W, Leung CH. Repurposing sodium stibogluconate as an uracil DNA glycosylase inhibitor against prostate cancer using a time-resolved oligonucleotide-based drug screening platform. Bioorg Chem 2024; 144:107176. [PMID: 38330721 DOI: 10.1016/j.bioorg.2024.107176] [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: 11/10/2023] [Revised: 01/26/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
Repurposing drugs can significantly reduce the time and costs associated with drug discovery and development. However, many drug compounds possess intrinsic fluorescence, resulting in aberrations such as auto-fluorescence, scattering and quenching, in fluorescent high-throughput screening assays. To overcome these drawbacks, time-resolved technologies have received increasing attention. In this study, we have developed a rapid and efficient screening platform based on time-resolved emission spectroscopy in order to screen for inhibitors of the DNA repair enzyme, uracil-DNA glycosylase (UDG). From a database of 1456 FDA/EMA-approved drugs, sodium stibogluconate was discovered as a potent UDG inhibitor. This compound showed synergistic cytotoxicity against 5-fluorouracil-resistant cancer cells. This work provides a promising future for time-resolved technologies for high-throughput screening (HTS), allowing for the swift identification of bioactive compounds from previously overlooked scaffolds due to their inherent fluorescence properties.
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Affiliation(s)
- Sang-Cuo Nao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China
| | - Le-Sheng Huang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China
| | | | - Xueliang Wang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China; Research & Development Institute of Northwestern Polytechnical University in Shenzhen, 45 South Gaoxin Road, Shenzhen 518057, China
| | - Guo-Dong Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China
| | - Jia Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China
| | - Chun-Yuen Wong
- Department of Chemistry, City University of Hong Kong, Hong Kong, China.
| | - Wanhe Wang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China; Research & Development Institute of Northwestern Polytechnical University in Shenzhen, 45 South Gaoxin Road, Shenzhen 518057, China.
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China; Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macau, China; Macao Centre for Research and Development in Chinese Medicine, University of Macau, Taipa, Macau, China; MoE Frontiers Science Centre for Precision Oncology, University of Macau, Taipa, Macau, China.
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4
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Jin H, Cui D, Fan Y, Li G, Zhong Z, Wang Y. Recent advances in bioaffinity strategies for preclinical and clinical drug discovery: Screening natural products, small molecules and antibodies. Drug Discov Today 2024; 29:103885. [PMID: 38278476 DOI: 10.1016/j.drudis.2024.103885] [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: 11/19/2023] [Revised: 12/26/2023] [Accepted: 01/11/2024] [Indexed: 01/28/2024]
Abstract
Bioaffinity drug screening strategies have gained popularity in preclinical and clinical drug discovery for natural products, small molecules and antibodies owing to their superior selectivity, the large number of compounds to be screened and their ability to minimize the time and expenses of the drug discovery process. This paper provides a systematic summary of the principles of commonly used bioaffinity-based screening methods, elaborates on the success of bioaffinity in clinical drug development and summarizes the active compounds, preclinical drugs and marketed drugs obtained through affinity screening methods. Owing to the high demand for new drugs, bioaffinity-guided screening techniques will play a greater part in clinical drug development.
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Affiliation(s)
- Haochun Jin
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Dianxin Cui
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Yu Fan
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, China
| | - Guodong Li
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, China.
| | - Zhangfeng Zhong
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China.
| | - Yitao Wang
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China.
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5
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Wu H, Wu Y, He P, Liang J, Xu X, Ji C. A meta-analysis for the diagnostic accuracy of SelectMDx in prostate cancer. PLoS One 2024; 19:e0285745. [PMID: 38329970 PMCID: PMC10852267 DOI: 10.1371/journal.pone.0285745] [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] [Received: 11/19/2022] [Accepted: 05/02/2023] [Indexed: 02/10/2024] Open
Abstract
To overview the diagnostic accuracy of SelectMDx for the detection of clinically significant prostate cancer and to review sources of methodologic variability. Four electronic databases, including PubMed, Embase, Web of Science, and Cochrane Library were searched for eligible studies investigating the diagnostic value of SelectMDx compared with the gold standard. The pooled sensitivity, specificity, and positive and negative predictive values were calculated. Included studies were assessed according to the Standards for Quality Assessment of Diagnostic Accuracy Studies 2 tool. The review identified 14 relevant publications with 2579 patients. All reports constituted phase 1 biomarker studies. Pooled analysis of findings found an area under the receiver operating characteristic analysis curve of 70% [95% CI, 66%-74%], a sensitivity of 81% [95% CI, 69%-89%], and a specificity of 52% [95% CI, 41%-63%]. The positive likelihood ratio was 1.68, and the negative predictive value is 0.37. Factors that may influence variability in test results included the breath collection method, the patient's physiologic condition, the test environment, and the method of analysis. Considerable heterogeneity was observed among the studies owing to the difference in the sample size. SelectMDx appears to have moderate to good diagnostic accuracy in differentiating patients with clinically significant prostate cancer from people at high risk of developing prostate cancer. Higher-quality clinical studies assessing the diagnostic accuracy of SelectMDx for clinically significant cancer are still needed.
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Affiliation(s)
- Hanting Wu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yanling Wu
- Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Peijie He
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Juan Liang
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiujuan Xu
- Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Conghua Ji
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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6
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Feng R, Fan Y, Zhang X, Chen L, Zhong ZF, Wang Y, Yu H, Zhang QW, Li G. A Biomimetic Multifunctional Nanoframework for Symptom Relief and Restorative Treatment of Acute Liver Failure. ACS NANO 2024. [PMID: 38294834 PMCID: PMC10883031 DOI: 10.1021/acsnano.4c00173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Acute liver failure (ALF) is a rare and serious condition characterized by major hepatocyte death and liver dysfunction. Owing to the limited therapeutic options, this disease generally has a poor prognosis and a high mortality rate. When ALF cannot be reversed by medications, liver transplantation is often needed. However, transplant rejection and the shortage of donor organs still remain major challenges. Most recently, stem cell therapy has emerged as a promising alternative for the treatment of liver diseases. However, the limited cell delivery routes and poor stability of live cell products have greatly hindered the feasibility and therapeutic efficacy of stem cell therapy. Inspired by the functions of mesenchymal stem cells (MSCs) primarily through the secretion of several factors, we developed an MSC-inspired biomimetic multifunctional nanoframework (MBN) that encapsulates the growth-promoting factors secreted by MSCs via combination with hydrophilic or hydrophobic drugs. The red blood cell (RBC) membrane was coated with the MBN to enhance its immunological tolerance and prolong its circulation time in blood. Importantly, the MBN can respond to the oxidative microenvironment, where it accumulates and degrades to release the payload. In this work, two biomimetic nanoparticles, namely, rhein-encapsulated MBN (RMBN) and N-acetylcysteine (NAC)-encapsulated MBN (NMBN), were designed and synthesized. In lipopolysaccharide (LPS)/d-galactosamine (D-GalN)-induced and acetaminophen (APAP)-induced ALF mouse models, RMBN and NMBN could effectively target liver lesions, relieve the acute symptoms of ALF, and promote liver cell regeneration by virtue of their strong antioxidative, anti-inflammatory, and regenerative activities. This study demonstrated the feasibility of the use of an MSC-inspired biomimetic nanoframework for treating ALF.
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Affiliation(s)
- Ruibing Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, P. R. China
| | - Yu Fan
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, P. R. China
- Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, P.R. China
| | - Xinya Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, P. R. China
- Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, P.R. China
| | - Lanmei Chen
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Zhang-Feng Zhong
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, P. R. China
| | - Yitao Wang
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, P. R. China
| | - Hua Yu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, P. R. China
| | - Qing-Wen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, P. R. China
| | - Guodong Li
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, P. R. China
- Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, P.R. China
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Berkal MA, Nardin C. Pesticide biosensors: trends and progresses. Anal Bioanal Chem 2023; 415:5899-5924. [PMID: 37668672 DOI: 10.1007/s00216-023-04911-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 09/06/2023]
Abstract
Pesticides, chemical substances extensively employed in agriculture to optimize crop yields, pose potential risks to human and environmental health. Consequently, regulatory frameworks are in place to restrict pesticide residue concentrations in water intended for human consumption. These regulations are implemented to safeguard consumer safety and mitigate any adverse effects on the environment and public health. Although gas chromatography- and liquid chromatography-mass spectrometry (GC-MS and LC-MS) are highly efficient techniques for pesticide quantification, their use is not suitable for real-time monitoring due to the need for sophisticated laboratory pretreatment of samples prior to analysis. Since they would enable analyte detection with selectivity and sensitivity without sample pretreatment, biosensors appear as a promising alternative. These consist of a bioreceptor allowing for specific recognition of the target and of a detection platform, which translates the biological interaction into a measurable signal. As early detection systems remain urgently needed to promptly alert and act in case of pollution, we review here the biosensors described in the literature for pesticide detection to advance their development for use in the field.
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Affiliation(s)
| | - Corinne Nardin
- Universite de Pau Et Des Pays de L'Adour, E2S UPPA, CNRS, IPREM, Pau, France.
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8
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Zhong W, Sczepanski JT. Chimeric d/l-DNA Probes of Base Excision Repair Enable Real-Time Monitoring of Thymine DNA Glycosylase Activity in Live Cells. J Am Chem Soc 2023; 145:17066-17074. [PMID: 37493592 PMCID: PMC10416308 DOI: 10.1021/jacs.3c03010] [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] [Received: 03/22/2023] [Indexed: 07/27/2023]
Abstract
The base excision repair (BER) pathway is a frontline defender of genomic integrity and plays a central role in epigenetic regulation through its involvement in the erasure of 5-methylcytosine. This biological and clinical significance has led to a demand for analytical methods capable of monitoring BER activities, especially in living cells. Unfortunately, prevailing methods, which are primarily derived from nucleic acids, are mostly incompatible with intracellular use due to their susceptibility to nuclease degradation and other off-target interactions. These limitations preclude important biological studies of BER enzymes and many clinical applications. Herein, we report a straightforward approach for constructing biostable BER probes using a unique chimeric d/l-DNA architecture that exploits the bioorthogonal properties of mirror-image l-DNA. We show that chimeric BER probes have excellent stability within living cells, where they were successfully employed to monitor relative BER activity, evaluate the efficiency of small molecule BER inhibitors, and study enzyme mutants. Notably, we report the first example of a fluorescent probe for real-time monitoring of thymine DNA glycosylase (TDG)-mediated BER of 5-formylcytosine and 5-carboxylcytosine in living cells, providing a much-needed tool for studying DNA (de)methylation biology. Chimeric probes offer a robust and highly generalizable approach for real-time monitoring of BER activity in living cells, which should enable a broad spectrum of basic research and clinical applications.
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Affiliation(s)
- Wenrui Zhong
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843, United States
| | - Jonathan T. Sczepanski
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843, United States
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Song YQ, Li GD, Niu D, Chen F, Jing S, Wai Wong VK, Wang W, Leung CH. A robust luminescent assay for screening alkyladenine DNA glycosylase inhibitors to overcome DNA repair and temozolomide drug resistance. J Pharm Anal 2023; 13:514-522. [PMID: 37305785 PMCID: PMC10257196 DOI: 10.1016/j.jpha.2023.04.010] [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: 01/06/2023] [Revised: 03/22/2023] [Accepted: 04/15/2023] [Indexed: 06/13/2023] Open
Abstract
Temozolomide (TMZ) is an anticancer agent used to treat glioblastoma, typically following radiation therapy and/or surgical resection. However, despite its effectiveness, at least 50% of patients do not respond to TMZ, which is associated with repair and/or tolerance of TMZ-induced DNA lesions. Studies have demonstrated that alkyladenine DNA glycosylase (AAG), an enzyme that triggers the base excision repair (BER) pathway by excising TMZ-induced N3-methyladenine (3meA) and N7-methylguanine lesions, is overexpressed in glioblastoma tissues compared to normal tissues. Therefore, it is essential to develop a rapid and efficient screening method for AAG inhibitors to overcome TMZ resistance in glioblastomas. Herein, we report a robust time-resolved photoluminescence platform for identifying AAG inhibitors with improved sensitivity compared to conventional steady-state spectroscopic methods. As a proof-of-concept, this assay was used to screen 1440 food and drug administration-approved drugs against AAG, resulting in the repurposing of sunitinib as a potential AAG inhibitor. Sunitinib restored glioblastoma (GBM) cancer cell sensitivity to TMZ, inhibited GBM cell proliferation and stem cell characteristics, and induced GBM cell cycle arrest. Overall, this strategy offers a new method for the rapid identification of small-molecule inhibitors of BER enzyme activities that can prevent false negatives due to a fluorescent background.
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Affiliation(s)
- Ying-Qi Song
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, 999078, China
| | - Guo-Dong Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, 999078, China
| | - Dou Niu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, 999078, China
| | - Feng Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, 999078, China
| | - Shaozhen Jing
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Vincent Kam Wai Wong
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macao, 999078, China
| | - Wanhe Wang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, 999078, China
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Macao, 999078, China
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10
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Chen Q, Zu M, Gong H, Ma Y, Sun J, Ran S, Shi X, Zhang J, Xiao B. Tea leaf-derived exosome-like nanotherapeutics retard breast tumor growth by pro-apoptosis and microbiota modulation. J Nanobiotechnology 2023; 21:6. [PMID: 36600299 DOI: 10.1186/s12951-022-01755-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
While several artificial nanodrugs have been approved for clinical treatment of breast tumor, their long-term applications are restricted by unsatisfactory therapeutic outcomes, side reactions and high costs. Conversely, edible plant-derived natural nanotherapeutics (NTs) are source-widespread and cost-effective, which have been shown remarkably effective in disease treatment. Herein, we extracted and purified exosome-like NTs from tea leaves (TLNTs), which had an average diameter of 166.9 nm and a negative-charged surface of - 28.8 mV. These TLNTs contained an adequate slew of functional components such as lipids, proteins and pharmacologically active molecules. In vitro studies indicated that TLNTs were effectively internalized by breast tumor cells (4T1 cells) and caused a 2.5-fold increase in the amount of intracellular reactive oxygen species (ROS) after incubation for 8 h. The high levels of ROS triggered mitochondrial damages and arrested cell cycles, resulting in the apoptosis of tumor cells. The mouse experiments revealed that TLNTs achieved good therapeutic effects against breast tumors regardless of intravenous injection and oral administration through direct pro-apoptosis and microbiota modulation. Strikingly, the intravenous injection of TLNTs, not oral administration, yielded obvious hepatorenal toxicity and immune activation. These findings collectively demonstrate that TLNTs can be developed as a promising oral therapeutic platform for the treatment of breast cancer.
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Affiliation(s)
- Qiubing Chen
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Beibei, Chongqing, 400715, China.,Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Materials and Energy, Southwest University, Beibei, Chongqing, 400715, China
| | - Menghang Zu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Beibei, Chongqing, 400715, China
| | - Hanlin Gong
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Ya Ma
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Beibei, Chongqing, 400715, China
| | - Jianfeng Sun
- Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Headington, OX3 7LD, Oxford, UK
| | - Susan Ran
- Loomis Chaffee School, Windsor, CT, 06095, USA
| | - Xiaoxiao Shi
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Beibei, Chongqing, 400715, China
| | - Jinming Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China.
| | - Bo Xiao
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Beibei, Chongqing, 400715, China.
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11
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Zhang Q, Zhao R, Li CC, Zhang Y, Tang C, Luo X, Ma F, Zhang CY. Construction of an Entropy-Driven Dumbbell-Type DNAzyme Assembly Circuit for Lighting Up Uracil-DNA Glycosylase in Living Cells. Anal Chem 2022; 94:13978-13986. [PMID: 36179339 DOI: 10.1021/acs.analchem.2c03223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sensitive monitoring of intracellular uracil-DNA glycosylase (UDG) in living cells is essential to understanding the DNA repair pathways and discovery of anticancer drugs. Herein, we demonstrate the construction of an entropy-driven dumbbell-type DNAzyme assembly circuit for lighting up UDG in living cells via the integration of entropy-driven DNA catalysis (EDC) with the DNAzyme biocatalyst. Target UDG excises the damaged uracil base, causing the breakage of detection probe and the release of trigger. The released trigger can initiate the downstream EDC reaction to form two catalytically active DNAzyme units. The resultant dual Mg2+-DNAzyme units serve as the signal transducers to cyclically cleave the fluorophore/quenched-modified reporters, generating an enhanced fluorescence signal. In contrast to the single-layered EDC method with a linear amplification, the proposed doublet EDC-DNAzyme strategy exhibits high signal gain and achieves a detection limit of 8.71 × 10-6 U/mL. Notably, this assay can be performed in one-step manner at room temperature without the requirement of strict temperature control and complicated reaction procedures, and it can further screen the UDG inhibitors, measure kinetic parameters, and discriminate cancer cells from normal cells. Moreover, this strategy can monitor intracellular UDG activity with improved signal gain, and it may be exploited for sensing and imaging of other types of DNA modifying enzymes with the integration of the corresponding detection substrate, providing a facile and robust approach for biological research studies and clinical diagnosis.
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Affiliation(s)
- Qian Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Ran Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Chen-Chen Li
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yan Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Chunying Tang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Xiliang Luo
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Fei Ma
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
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12
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Ma F, Liu YZ, Liu M, Qiu JG, Zhang CY. Transcriptionally amplified synthesis of fluorogenic RNA aptamers for label-free DNA glycosylase assay. Chem Commun (Camb) 2022; 58:10229-10232. [PMID: 36004508 DOI: 10.1039/d2cc03628b] [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
We demonstrate for the first time the utilization of fluorogenic RNA aptamers for label-free uracil-DNA glycosylase (UDG) assay. Through rationally engineering the transcription machine with dU substitution, this assay requires only a single probe to simultaneously sense and amplify the UDG signal, achieving a low detection limit of 6.3 × 10-6 U mL-1. Moreover, it can be applied for screening UDG inhibitors and measuring endogenous UDG activity in different cells.
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Affiliation(s)
- Fei Ma
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China. .,School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Ya-Zhen Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Meng Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Jian-Ge Qiu
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China.
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
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13
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Wang J, Jin Y, Li M, Liu S, Lo KKW, Zhao Q. Time-Resolved Luminescent Sensing and Imaging for Enzyme Catalytic Activity Based on Responsive Probes. Chem Asian J 2022; 17:e202200429. [PMID: 35819359 DOI: 10.1002/asia.202200429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 07/11/2022] [Indexed: 11/07/2022]
Abstract
Enzymes, as a kind of biomacromolecules, play an important role in many physiological processes and relate directly to various diseases. Developing an efficient detection method for enzyme activity is important to achieve early diagnosis of enzyme-relevant diseases and high throughput screening of potential enzyme-relevant drugs. Time-resolved luminescence assay provide a high accuracy and signal-to-noise ratios detection methods for enzyme activity, which has been widely used in high throughput screening of enzyme-relevant drugs and diagnosis of enzyme-relevant diseases. Inspired by these advantages, various responsive probes based on metal complexes and metal-free organic compounds have been developed for time-resolved bioimaging and biosensing of enzyme activity owing to their long luminescence lifetimes, high quantum yields and photostability. In this review, we comprehensively reviewed metal complex- and metal-free organic compound-based responsive probes applied to detect enzyme activity through time-resolved imaging, including their design strategies and sensing principles. Current challenges and future prospects in this rapidly growing field are also discussed.
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Affiliation(s)
- Jiawei Wang
- Nanjing University of Posts and Telecommunications, Institute of Advanced Materials, 9 Wenyuan Road, 210023, Nanjing, CHINA
| | - Yibiao Jin
- Nanjing University of Posts and Telecommunications, Institute of Advanced Materials, 9 Wenyuan Road, 210023, Nanjing, CHINA
| | - Mingdang Li
- Nanjing University of Posts and Telecommunications, Institute of Advanced Materials, 9 Wenyuan Road, 210023, Nanjing, CHINA
| | - Shujuan Liu
- Nanjing University of Posts and Telecommunications, Institute of Advanced Materials, 9 Wenyuan Road, 210023, Nanjing, CHINA
| | - Kenneth Kam-Wing Lo
- City University of Hong Kong, Department of Chemistry, Tat Chee Avenue, Hong Kong, CHINA
| | - Qiang Zhao
- Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, 210023, Nanjing, CHINA
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14
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Chen F, Li G, Wu C, Wang L, Ko CN, Ma DL, Leung CH. Interference Reduction Biosensing Strategy for Highly Sensitive microRNA Detection. Anal Chem 2022; 94:4513-4521. [PMID: 35234447 DOI: 10.1021/acs.analchem.2c00138] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
MicroRNAs are potential biomarkers for human cancers and other diseases due to their roles as post-transcriptional regulators for gene expression. However, the detection of miRNAs by conventional methods such as RT-qPCR, in situ hybridization, northern blot-based platforms, and next-generation sequencing is complicated by short length, low abundance, high sequence homology, and susceptibility to degradation of miRNAs. In this study, we developed a nicking endonuclease-mediated interference reduction rolling circle amplification (NEM-IR-RCA) strategy for the ultrasensitive and highly specific detection of miRNA-21. This method exploits the advantages of the optical properties of long-lived iridium(III) probes, in conjunction with time-resolved emission spectroscopy (TRES) and exponential rolling circle amplification (E-RCA). Under the NEM-IR-RCA-based signal enhancement processes, the limit of detection of miRNA-21 was down to 0.0095 fM with a linear range from 0.05 to 100 fM, which is comparable with the conventional RT-qPCR. Unlike RT-qPCR, the strategy was performed at a lower and constant temperature without heating/cooling cycles and reverse transcription. The strategy could clearly discriminate between matched and mismatched targets, demonstrating high specificity. Moreover, the potential application of this method was demonstrated in cancer cells and mouse serum samples, showing good agreement with RT-qPCR results. Apart from miRNA-21 detection, this platform could be also adapted for detecting other miRNAs, such as let-7a and miRNA-22, indicating its excellent potential for biomedical research and clinical diagnostics.
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Affiliation(s)
- Feng Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR 999078, China
| | - Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR 999078, China.,Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, China
| | - Chun Wu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR 999077, China
| | - Ling Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR 999078, China
| | - Chung-Nga Ko
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR 999077, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR 999077, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR 999078, China.,Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR 999078, China.,Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, China
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15
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Chen F, Li G, Wu C, Wang W, Ma DL, Leung CH. A rapid and label-free DNA-based interference reduction nucleic acid amplification strategy for viral RNA detection. Biosens Bioelectron 2022; 198:113829. [PMID: 34840016 DOI: 10.1016/j.bios.2021.113829] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 10/11/2021] [Accepted: 11/19/2021] [Indexed: 12/26/2022]
Abstract
Common reference methods for COVID-19 diagnosis include thermal cycling amplification (e.g. RT-PCR) and isothermal amplification methods (e.g. LAMP and RPA). However, they may not be suitable for direct detection in environmental and biological samples due to background signal interference. Here, we report a rapid and label-free interference reduction nucleic acid amplification strategy (IR-NAAS) that exploits the advantages of luminescent iridium(III) probes, time-resolved emission spectroscopy (TRES) and multi-branch rolling circle amplification (mbRCA). Using IR-NAAS, we established a luminescence approach for diagnosing COVID-19 RNAs sequences RdRp, ORF1ab and N with a linear range of 0.06-6.0 × 105 copies/mL and a detection limit of down to 7.3 × 104 copies/mL. Moreover, the developed method was successfully applied to detect COVID-19 RNA sequences from various environmental and biological samples, such as domestic sewage, and mice urine, blood, feces, lung tissue, throat and nasal secretions. Apart from COVID-19 diagnosis, IR-NAAS was also demonstrated for detecting other RNA viruses, such as H1N1 and CVA10, indicating that this approach has great potential approach for routine preliminary viral detection.
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Affiliation(s)
- Feng Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, China
| | - Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, China
| | - Chun Wu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Wanhe Wang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China; Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China.
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, China; Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, China.
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16
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Ouyang Y, Liu Y, Deng Y, He H, Huang J, Ma C, Wang K. Recent advances in biosensor for DNA glycosylase activity detection. Talanta 2021; 239:123144. [PMID: 34923254 DOI: 10.1016/j.talanta.2021.123144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 10/19/2022]
Abstract
Base excision repair (BER) is vital for maintaining the integrity of the genome under oxidative damage. DNA glycosylase initiates the BER pathway recognizes and excises the mismatched substrate base leading to the apurinic/apyrimidinic site generation, and simultaneously breaks the single-strand DNA. As the aberrant activity of DNA glycosylase is associated with numerous diseases, including cancer, immunodeficiency, and atherosclerosis, the detection of DNA glycosylase is significant from bench to bedside. In this review, we summarized novel DNA strategies in the past five years for DNA glycosylase activity detection, which are classified into fluorescence, colorimetric, electrochemical strategies, etc. We also highlight the current limitations and look into the future of DNA glycosylase activity monitoring.
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Affiliation(s)
- Yuzhen Ouyang
- School of Life Sciences, Central South University, Changsha, 410013, China; Clinical Medicine Eight-year Program, Xiangya School of Medicine, Central South University, Changsha, 410078, China
| | - Yifan Liu
- School of Life Sciences, Central South University, Changsha, 410013, China; Clinical Medicine Eight-year Program, Xiangya School of Medicine, Central South University, Changsha, 410078, China
| | - Yuan Deng
- School of Life Sciences, Central South University, Changsha, 410013, China
| | - Hailun He
- School of Life Sciences, Central South University, Changsha, 410013, China
| | - Jin Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, China.
| | - Changbei Ma
- School of Life Sciences, Central South University, Changsha, 410013, China.
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, China
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17
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Hu M, Zhu D, Zhou X. M-CDC: Magnetic pull-down-assisted colorimetric method based on the CRISPR/Cas12a system. Methods 2021; 203:259-267. [PMID: 34813932 DOI: 10.1016/j.ymeth.2021.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/28/2021] [Accepted: 11/15/2021] [Indexed: 11/30/2022] Open
Abstract
The construction of a rapid, simple, and specific nucleic acid detection platform is of great significance to the control of the large-scale spread of infectious diseases. We have recently established a magnetic pull-down-assisted colorimetric method based on the CRISPR/Cas12a system (termed M-CDC), which effectively integrates the advantages of CRISPR/Cas12a, magnetic beads-based separation, and AuNP bioprobe to provide a simple and specific biosensing platform for nucleic acid assay. The M-CDC method is compatible with point-of-care testing and enables the detection of nucleic acid samples in less than an hour without relying on expensive and complex instruments. In this paper, step-by-step instructions for M-CDC assay, including recombinase polymerase amplification (RPA)/reverse transcription-polymerase chain reaction (RT-RPA) of DNA or RNA, Cas12a-mediated target recognition and cleavage, and subsequent magnetic beads-mediated colorimetric readouts are provided. In addition, the protocol for the expression and purification of Lachnospiraceae bacterium-Cas12a (LbCas12a) protein, the design and synthesis of high-efficient crRNA, and the preparation of AuNP bioprobe are also offered.
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Affiliation(s)
- Menglu Hu
- School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Debin Zhu
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou 510006, PR China.
| | - Xiaoming Zhou
- School of Life Sciences, South China Normal University, Guangzhou 510631, PR China.
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18
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Ning Y, Jin GQ, Wang MX, Gao S, Zhang JL. Recent progress in metal-based molecular probes for optical bioimaging and biosensing. Curr Opin Chem Biol 2021; 66:102097. [PMID: 34775149 DOI: 10.1016/j.cbpa.2021.102097] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/03/2021] [Accepted: 10/05/2021] [Indexed: 12/29/2022]
Abstract
Biological imaging and biosensing from subcellular/cellular level to whole body have enabled non-invasive visualisation of molecular events during various biological and pathological processes, giving great contributions to the rapid and impressive advances in chemical biology, drug discovery, disease diagnosis and prognosis. Optical imaging features a series of merits, including convenience, high resolution, good sensitivity, low cost and the absence of ionizing radiation. Among different luminescent probes, metal-based molecules offer unique promise in optical bioimaging and biosensing in vitro and in vivo, arising from their small sizes, strong luminescence, large Stokes shifts, long lifetimes, high photostability and tunable toxicity. In this review, we aim to highlight the design of metal-based molecular probes from the standpoint of synthetic chemistry in the last 2 years for optical imaging, covering d-block transition metal and lanthanide complexes and multimodal imaging agents.
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Affiliation(s)
- Yingying Ning
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China; Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (i(3)), Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, 02129, USA
| | - Guo-Qing Jin
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China
| | - Meng-Xin Wang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China; Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, PR China; Spin-X Institute, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, PR China; Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China; Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, PR China.
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19
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Li G, Liu H, Feng R, Kang TS, Wang W, Ko CN, Wong CY, Ye M, Ma DL, Wan JB, Leung CH. A bioactive ligand-conjugated iridium(III) metal-based complex as a Keap1-Nrf2 protein-protein interaction inhibitor against acetaminophen-induced acute liver injury. Redox Biol 2021; 48:102129. [PMID: 34526248 PMCID: PMC8710994 DOI: 10.1016/j.redox.2021.102129] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/30/2021] [Accepted: 09/07/2021] [Indexed: 01/04/2023] Open
Abstract
Hepatotoxicity caused by an overdose of acetaminophen (APAP) is the leading reason for acute drug-related liver failure. Nuclear factor erythroid-2-related factor 2 (Nrf2) is a protein that helps to regulate redox homeostasis and coordinate stress responses via binding to the Kelch-like ECH-associated protein 1 (Keap1). Targeting the Keap1-Nrf2 interaction has recently emerged as a potential strategy to alleviate liver injury caused by APAP. Here, we designed and synthesized a number of iridium (III) and rhodium (III) complexes bearing ligands with reported activity against oxidative stress, which is associated with Nrf2 transcriptional activation. The iridium (III) complex 1 bearing a bioactive ligand 2,9-dimethyl-1,10-phenanthroline and 4-chloro-2-phenylquinoline, a derivative of the bioactive ligand 2-phenylquinoline, was identified as a direct small-molecule inhibitor of the Keap1–Nrf2 protein-protein interaction. 1 could stabilize Keap1 protein, upregulate HO-1 and NQO1, and promote Nrf2 nuclear translocation in normal liver cells. Moreover, 1 reversed APAP-induced liver damage by disrupting Keap1–Nrf2 interaction and without inducing organ damage and immunotoxicity in mice. Our study demonstrates the identification of a selective and efficacious antagonist of Keap1–Nrf2 interaction possessed good cellular permeability in cellulo and ideal pharmacokinetic parameters in vivo, and, more importantly, validates the feasibility of conjugating metal complexes with bioactive ligands to generate metal-based drug leads as non-toxic Keap1–Nrf2 interaction inhibitors for treating APAP-induced acute liver injury. 1 reversed APAP-induced liver damage by disrupting Keap1–Nrf2 interaction without inducing organ damage or immunotoxicity. Complex 1 possessed good cellular permeability in cellulo and ideal pharmacokinetic parameters in vivo. Conjugating metal complexes with bioactive ligands opens a novel avenue for the treatment of APAP-induced liver damage.
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Affiliation(s)
- Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China
| | - Hao Liu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Ruibing Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China
| | - Tian-Shu Kang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China
| | - Wanhe Wang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China; Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Chung-Nga Ko
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Chun-Yuen Wong
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong SAR, China
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China.
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China.
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China; Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Macao SAR, China.
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20
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Jiang C, Wang F, Zhang K, Min T, Chen D, Wen Y. Distance-Based Biosensor for Ultrasensitive Detection of Uracil-DNA Glycosylase Using Membrane Filtration of DNA Hydrogel. ACS Sens 2021; 6:2395-2402. [PMID: 34048234 DOI: 10.1021/acssensors.1c00624] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the deoxyribonucleic acid (DNA) repair pathways, DNA repair enzymes have great significance for genomic integrity. As one important initiator of the base-excision repair pathway, the aberrant activity of uracil-DNA glycosylase (UDG) is closely associated with many diseases. Herein, we developed a simple distance-based device for visual detection of UDG activity using a load-free DNA hydrogel. The DNA hydrogel consists of polyacrylamide-DNA chains being bridged by a single-stranded DNA crosslinker containing a responsive uracil base site. UDG can recognize and remove the uracil, resulting in the cleavage effect of the DNA crosslinker strand with the assistance of endonuclease IV (Endo IV). Plugging one end of the capillary tube, the DNA hydrogel acting as a filter membrane separator would control molecules to flow into the tube. The integrity of the DNA hydrogel networks is affected by the excision of UDG. Therefore, taking full advantage of membrane filtration of the DNA hydrogel, the activity of UDG can be quantitatively detected via reading the distance of the red indicator solution in the capillary tube. Without any instruments and complicated procedures, this method realizes high sensitivity and specificity for the detection of UDG as low as 0.02 mU/mL and can even measure UDG in complex cell samples. Additionally, this method is simple, universal, and can be used to screen inhibitors, which shows great potential for point-of-care testing, clinical diagnosis, and drug discovery.
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Affiliation(s)
- Chao Jiang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Fangfang Wang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Kexin Zhang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Tiantian Min
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Desheng Chen
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
| | - Yongqiang Wen
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
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21
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22
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Song YQ, Wu C, Wu KJ, Han QB, Miao XM, Ma DL, Leung CH. Ubiquitination Regulators Discovered by Virtual Screening for the Treatment of Cancer. Front Cell Dev Biol 2021; 9:665646. [PMID: 34055799 PMCID: PMC8149734 DOI: 10.3389/fcell.2021.665646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 03/15/2021] [Indexed: 12/03/2022] Open
Abstract
The ubiquitin-proteasome system oversees cellular protein degradation in order to regulate various critical processes, such as cell cycle control and DNA repair. Ubiquitination can serve as a marker for mutation, chemical damage, transcriptional or translational errors, and heat-induced denaturation. However, aberrant ubiquitination and degradation of tumor suppressor proteins may result in the growth and metastasis of cancer. Hence, targeting the ubiquitination cascade reaction has become a potential strategy for treating malignant diseases. Meanwhile, computer-aided methods have become widely accepted as fast and efficient techniques for early stage drug discovery. This review summarizes ubiquitination regulators that have been discovered via virtual screening and their applications for cancer treatment.
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Affiliation(s)
- Ying-Qi Song
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau
| | - Chun Wu
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Ke-Jia Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau
| | - Quan-Bin Han
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Xiang-Min Miao
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau
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23
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Wang LJ, Liang L, Liu BJ, Jiang B, Zhang CY. A controlled T7 transcription-driven symmetric amplification cascade machinery for single-molecule detection of multiple repair glycosylases. Chem Sci 2021; 12:5544-5554. [PMID: 34168791 PMCID: PMC8179622 DOI: 10.1039/d1sc00189b] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/24/2021] [Indexed: 12/26/2022] Open
Abstract
Genomic oxidation and alkylation are two of the most important forms of cytotoxic damage that may induce mutagenesis, carcinogenicity, and teratogenicity. Human 8-oxoguanine (hOGG1) and alkyladenine DNA glycosylases (hAAG) are responsible for two major forms of oxidative and alkylative damage repair, and their aberrant activities may cause repair deficiencies that are associated with a variety of human diseases, including cancers. Due to their complicated catalytic pathways and hydrolysis mechanisms, simultaneous and accurate detection of multiple repair glycosylases has remained a great challenge. Herein, by taking advantage of unique features of T7-based transcription and the intrinsic superiorities of single-molecule imaging techniques, we demonstrate for the first time the development of a controlled T7 transcription-driven symmetric amplification cascade machinery for single-molecule detection of hOGG1 and hAAG. The presence of hOGG1 and hAAG can remove damaged 8-oxoG and deoxyinosine, respectively, from the dumbbell substrate, resulting in breaking of the dumbbell substrate, unfolding of two loops, and exposure of two T7 promoters simultaneously. The T7 promoters can activate symmetric transcription amplifications with the unfolded loops as the templates, inducing efficient transcription to produce two different single-stranded RNA transcripts (i.e., reporter probes 1 and 2). Reporter probes 1 and 2 hybridize with signal probes 1 and 2, respectively, to initiate duplex-specific nuclease-directed cyclic digestion of the signal probes, liberating large amounts of Cy3 and Cy5 fluorescent molecules. The released Cy3 and Cy5 molecules can be simply measured by total internal reflection fluorescence-based single-molecule detection, with the Cy3 signal indicating the presence of hOGG1 and the Cy5 signal indicating the presence of hAAG. This method exhibits good specificity and high sensitivity with a detection limit of 3.52 × 10-8 U μL-1 for hOGG1 and 3.55 × 10-7 U μL-1 for hAAG, and it can even quantify repair glycosylases at the single-cell level. Moreover, it can be applied for the measurement of kinetic parameters, the screening of potential inhibitors, and the detection of repair glycosylases in human serum, providing a new paradigm for repair enzyme-related biomedical research, drug discovery, and clinical diagnosis.
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Affiliation(s)
- Li-Juan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University Jinan 250014 China
- School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Le Liang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University Jinan 250014 China
| | - Bing-Jie Liu
- Academy of Medical Sciences, Zhengzhou University Zhengzhou 450000 China
| | - BingHua Jiang
- Academy of Medical Sciences, Zhengzhou University Zhengzhou 450000 China
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University Jinan 250014 China
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