1
|
Lu C, Meng C, Li Y, Yuan J, Ren X, Gao L, Su D, Cao K, Cui M, Yuan Q, Gao X. A probe for NIR-II imaging and multimodal analysis of early Alzheimer's disease by targeting CTGF. Nat Commun 2024; 15:5000. [PMID: 38866763 PMCID: PMC11169542 DOI: 10.1038/s41467-024-49409-4] [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: 12/08/2023] [Accepted: 06/04/2024] [Indexed: 06/14/2024] Open
Abstract
To date, earlier diagnosis of Alzheimer's disease (AD) is still challenging. Recent studies revealed the elevated expression of connective tissue growth factor (CTGF) in AD brain is an upstream regulator of amyloid-beta (Aβ) plaque, thus CTGF could be an earlier diagnostic biomarker of AD than Aβ plaque. Herein, we develop a peptide-coated gold nanocluster that specifically targets CTGF with high affinity (KD ~ 21.9 nM). The probe can well penetrate the blood-brain-barrier (BBB) of APP/PS1 transgenic mice at early-stage (earlier than 3-month-old) in vivo, allowing non-invasive NIR-II imaging of CTGF when there is no appearance of Aβ plaque deposition. Notably, this probe can also be applied to measuring CTGF on postmortem brain sections by multimodal analysis, including fluorescence imaging, peroxidase-like chromogenic imaging, and ICP-MS quantitation, which enables distinguishment between the brains of AD patients and healthy people. This probe possesses great potential for precise diagnosis of earlier AD before Aβ plaque formation.
Collapse
Affiliation(s)
- Cao Lu
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Cong Meng
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Yuying Li
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Jinling Yuan
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Xiaojun Ren
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Liang Gao
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Dongdong Su
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Kai Cao
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Mengchao Cui
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Qing Yuan
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China.
| | - Xueyun Gao
- Center of Excellence for Environmental Safety and Biological Effects, Department of Chemistry, Beijing University of Technology, Beijing, 100124, P. R. China.
| |
Collapse
|
2
|
Xia D, Zhang Y, Zhang C, Yao X, Tang Y, Wang F, Han X, Yin H, Xu C, Gao X. Observation of the protein expression level via naked eye: Pt clusters catalyze non-color molecules into brown-colored molecules in cells. Front Chem 2023; 11:1145415. [PMID: 36860645 PMCID: PMC9969140 DOI: 10.3389/fchem.2023.1145415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
α v β 3 is overexpressed in various tumor cells and plays a key role in tumor genesis, invasion, and metastasis. Therefore, it is of great significance to precisely detect the α v β 3 level in cells via a simple method. For this purpose, we have constructed a peptide-coated platinum (Pt) cluster. Due to its bright fluorescence, well-defined Pt atom numbers, and peroxidase-like catalytic activity, this cluster can be used to evaluate α v β 3 levels in cells by fluorescence imaging, inductively coupled plasma mass spectrometry (ICP-MS), and catalytic amplification of visual dyes, respectively. In this report, the expression level of α v β 3 in living cells is well-detected by the naked eye under an ordinary light microscope when the Pt cluster binds to αvβ3 in cells and catalyzes non-color 3,3'-diaminobenzidine (DAB) into brown-colored molecules in situ. Moreover, SiHa, HeLa, and 16HBE cell lines with different α v β 3 expression levels can be visually distinguished by the peroxidase-like Pt clusters. This research will provide a reliable method for the simple detection of α v β 3 levels in cells.
Collapse
Affiliation(s)
- Dongfang Xia
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, China
| | - Yong Zhang
- Faculty of Environment and Life, Beijing University of Technology, Beijing, China
| | - Chunyu Zhang
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiuxiu Yao
- Faculty of Environment and Life, Beijing University of Technology, Beijing, China
| | - Yuhua Tang
- Faculty of Environment and Life, Beijing University of Technology, Beijing, China
| | - Fuchao Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, China
| | - Xu Han
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multi-disciplinary Research Division, Institute of High Energy Physics and University of Chinese Academy of Sciences (UCAS), Chinese Academy of Sciences (CAS), Beijing, China
| | - Hongzong Yin
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, China,*Correspondence: Hongzong Yin, ; Chao Xu, ; Xueyun Gao,
| | - Chao Xu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, China,*Correspondence: Hongzong Yin, ; Chao Xu, ; Xueyun Gao,
| | - Xueyun Gao
- Faculty of Environment and Life, Beijing University of Technology, Beijing, China,*Correspondence: Hongzong Yin, ; Chao Xu, ; Xueyun Gao,
| |
Collapse
|
3
|
An Integrated Optical and Chromogenic Probe for Tumor Cell Imaging. J Pharm Biomed Anal 2022; 215:114766. [DOI: 10.1016/j.jpba.2022.114766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 04/02/2022] [Accepted: 04/10/2022] [Indexed: 11/22/2022]
|
4
|
Li J, Zhang X, Gao F, Yuan Q, Zhang C, Yuan H, Liu Y, Chen L, Han Y, Gao X, Gao L. Catalytic Clusterbody for Enhanced Quantitative Protein Immunoblot. Anal Chem 2021; 93:10807-10815. [PMID: 34328735 DOI: 10.1021/acs.analchem.1c00779] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
To assess low-abundance protein biomarkers associated with tumor progression, we have developed artificial catalytic antibodies based on well-defined metal clusters modified with rationally designed peptides, termed clusterbodies. Such clusterbodies possess favorable integrated features of matched ultrasmall sizes, intrinsic fluorescence, and enzyme-like catalytic and selective recognition properties that are inaccessible to traditional antibodies. Consequently, a quantitative assay with high accuracy and high sensitivity is established by measuring the fluorescence and catalytic chemiluminescence of metal clusters preferentially recognizing the protein biomarker, which is confirmed by the molecular-weight marker references of immunoblotting. The results of quantitative immunoblotting are highly close to that derived from the enzyme-linked immunosorbent assay, implying the reliability of this protocol. Remarkably, the detection limit of the aimed protein achieved is as low as 1.0 pg, one magnitude lower than that of the conventional immunoassay. The significant variation of expression levels of the biomarker in tumor cells evidently indicates their distinguished invasion ability. This platform has potential application in analyzing low-abundance protein biomarkers in complex biological matrixes, which is essential to corroborate tumor malignancy in early stage. It inspires the construction of clusterbody-based precise bioprobes with customized structures and integrative functions for advanced quantitative biosensing.
Collapse
Affiliation(s)
- Jiaojiao Li
- Department of Chemistry and Biology, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, China
| | - Xiangchun Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Fuping Gao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Qing Yuan
- Department of Chemistry and Biology, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, China
| | - Chunyu Zhang
- Department of Chemistry and Biology, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, China
| | - Hui Yuan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yanhong Liu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Lu Chen
- Department of Chemistry and Biology, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, China
| | - Ying Han
- Department of Chemistry and Biology, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, China
| | - Xueyun Gao
- Department of Chemistry and Biology, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, China
| | - Liang Gao
- Department of Chemistry and Biology, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, China
| |
Collapse
|
5
|
Xia W, Hu C. Progress in Research on Tumor Metastasis Inhibitors. Curr Med Chem 2020; 27:5758-5772. [PMID: 31560282 DOI: 10.2174/0929867326666190927120847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 08/08/2019] [Accepted: 08/13/2019] [Indexed: 02/08/2023]
Abstract
Tumor metastasis is a significant cause of malignant cancer-related death. Therefore, inhibiting tumor metastasis is an effective means of treating malignant tumors. Increasing our understanding of the molecular mechanisms that govern tumor metastasis can reveal new anti-cancer targets. This article will discuss the breakthroughs in this area and the corresponding recent developments in anti-cancer drug discovery.
Collapse
Affiliation(s)
- Weiqi Xia
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Chunqi Hu
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| |
Collapse
|
6
|
Liu C, Zhang X, Han X, Fang Y, Liu X, Wang X, Waterhouse GIN, Xu C, Yin H, Gao X. Polypeptide-Templated Au Nanoclusters with Red and Blue Fluorescence Emissions for Multimodal Imaging of Cell Nuclei. ACS APPLIED BIO MATERIALS 2020; 3:1934-1943. [DOI: 10.1021/acsabm.9b01078] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Chang Liu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, P.R. China
| | - Xiangchun Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Xu Han
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multi-disciplinary Research Division, Institute of High Energy Physics and University of Chinese Academy of Sciences (UCAS), Chinese Academy of Sciences (CAS), Beijing 100049, P.R. China
| | - Yide Fang
- Menaul School Qingdao No.17, Wenhai Road, Qingdao Bule Silicon Valley, Qingdao 266200, Shandong, P.R. China
| | - Xuemei Liu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, P.R. China
| | - Xiaolin Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, P.R. China
| | - Geoffrey I. N. Waterhouse
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, P.R. China
- School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Chao Xu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, P.R. China
| | - Hongzong Yin
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, P.R. China
| | - Xueyun Gao
- Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
| |
Collapse
|
7
|
Du R, Wang X, He S. BDNF improves axon transportation and rescues visual function in a rodent model of acute elevation of intraocular pressure. SCIENCE CHINA-LIFE SCIENCES 2020; 63:1337-1346. [PMID: 32201927 DOI: 10.1007/s11427-019-1567-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/28/2019] [Indexed: 12/12/2022]
Abstract
Optic neuropathies lead to blindness; the common pathology is the degeneration of axons of the retinal ganglion cells. In this study, we used a rat model of retinal ischemia-reperfusion and a one-time intravitreal brain-derived neurotrophic factor (BDNF) injection; then we examined axon transportation function, continuity, physical presence of axons in different part of the optic nerve, and the expression level of proteins involved in axon transportation. We found that in the disease model, axon transportation was the most severely affected, followed by axon continuity, then the number of axons in the distal and proximal optic nerve. BDNF treatment relieved all reductions and significantly restored function. The molecular changes were more minor, probably due to massive gliosis of the optic nerve, so interpretation of protein expression data should be done with some caution. The process in this acute model resembles a fast-forward of changes in the chronic model of glaucoma. Therefore, impairment in axon transportation appears to be a common early process underlying different optic neuropathies. This research on effective intervention can be used to develop interventions for all optic neuropathies targeting axon transportation.
Collapse
Affiliation(s)
- Rui Du
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xu Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shigang He
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China. .,Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai, 200240, China. .,Bio-X Institute, Shanghai Jiao Tong University, Shanghai, 200240, China.
| |
Collapse
|
8
|
Sengupta P, Pramanik K, Datta P, Sarkar P. Chemically modified carbon nitride-chitin-acetic acid hybrid as a metal-free bifunctional nanozyme cascade of glucose oxidase-peroxidase for "click off" colorimetric detection of peroxide and glucose. Biosens Bioelectron 2020; 154:112072. [PMID: 32056967 DOI: 10.1016/j.bios.2020.112072] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/31/2020] [Accepted: 02/03/2020] [Indexed: 11/30/2022]
Abstract
Hybrid nanomaterials-based artificial enzymes with numerous utilities are necessary to develop future bionic devices in mimicking physiological processes. This paper demonstrates bifunctional enzyme mimicking roles of a metal-free nanozyme hybrid of chemically modified graphitic carbon nitride (MGCN), chitin and acetic acid (AcOH). The MGCN exhibited glucose oxidase-mimicking activity and chitin-AcOH mirrored peroxidase. MGCN-chitin-AcOH when in contact with glucose, oxidised glucose to gluconic acid and hydrogen peroxide (H2O2) while the chitin-AcOH decomposed the generated H2O2, as proved separately, by concurrent oxidation of 3,3',5,5'-tetramethylbenzidine (TMB). The super-sensitive colorimetric process produced linear regression equation for H2O2 as A = 0.00105C + 0.0630 (C:μM, R2 = 0.9961) with a detection limit of 0.052 μM, whereas for glucose, the linear relationship was A = 0.00084C + 0.0458 (C:μM, R2 = 0.9952) having a detection limit of 0.055 μM. The developed method was also successfully applied for assessment of H2O2 and glucose in human serum and urine samples. Non-enzymatic glucose test strips from MGCN-chitin-AcOH based hydrogel were reported and verified for semi-quantitative analysis of glucose. These compared well with results from standard enzyme-based colorimetric procedure. The developed hybrid nanozyme provided feasible alternatives to the two natural enzymes (peroxidase and glucose oxidase) realized through real sample analysis. The developed hybrid nanozyme can be successfully used for colorimetric detection of peroxide and glucose in medical diagnostics.
Collapse
Affiliation(s)
- Pavel Sengupta
- Biolectrochemical Laboratory, Calcutta Institute of Technology, Banitabla, Howrah, West Bengal, 711316, India
| | - Krishnendu Pramanik
- Biolectrochemical Laboratory, Calcutta Institute of Technology, Banitabla, Howrah, West Bengal, 711316, India
| | - Pallab Datta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711103, West Bengal, India
| | - Priyabrata Sarkar
- Biolectrochemical Laboratory, Calcutta Institute of Technology, Banitabla, Howrah, West Bengal, 711316, India.
| |
Collapse
|
9
|
Decreasing intraocular pressure significantly improves retinal vessel density, cytoarchitecture and visual function in rodent oxygen induced retinopathy. SCIENCE CHINA-LIFE SCIENCES 2019; 63:290-300. [PMID: 31728829 DOI: 10.1007/s11427-018-9559-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/08/2019] [Indexed: 10/25/2022]
Abstract
We attempted to explore a noninvasive, easily applicable and economically affordable therapy for retinopathy of prematurity (ROP). Rat pups were raised in 80% oxygen from postnatal day 7 to P12, and returned to room air. Travoprost eye drops were administered twice a day for 7 days, to reduce intraocular pressure (IOP) by about 20%. Immunohistochemical staining was performed to visualize vessel endothelial cells, to analyze retinal neurons and cytoarchitecture. Behavioral experiments were carried out to test visual acuity and contrast sensitivity. At the end of the 7-day treatment, the number of vessels extending to the vitreous body was significantly reduced and retinal vessel density increased. This improvement was maintained to the end of the 12th week. In the central retina of the model group, the horizontal cells were completely wiped out, the outer plexiform layer was undetectable, and the rod bipolar cell dendrites sprouted into the outer nuclear layer. The treatment partially reverted these architectural changes. Most importantly, behavioral experiments revealed significantly improved visual acuity and contrast sensitivity in the treated group. Therefore, reducing IOP could potentially serve as a safe and economical measure to treat ROP.
Collapse
|