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Hu O, Gong Y, Chang Y, Tan Y, Chen Z, Bi W, Jiang Z. Fluorescent and colorimetric dual-readout platform for tuberculosis point-of-care detection based on dual signal amplification strategy and quantum dot nanoprobe. Biosens Bioelectron 2024; 264:116641. [PMID: 39167885 DOI: 10.1016/j.bios.2024.116641] [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: 04/23/2024] [Revised: 07/17/2024] [Accepted: 08/06/2024] [Indexed: 08/23/2024]
Abstract
Rapid and accurate diagnosis of tuberculosis (TB) is of great significance to control the spread of this devastating infectious disease. In this work, a sensitive and low-cost point-of-care testing (POCT) detection platform for TB was developed based on recombinase polymerase amplification (RPA)-catalytic hairpin assembly (CHA)-assisted dual signal amplification strategy. This platform could achieve homogeneous fluorescent and visual diagnosis of TB by using CdTe quantum dots (QDs) signal reporter. In the presence of target DNA (IS1081 gene fragment), RPA amplicons blocked by short oligonucleotide strands could trigger CHA signal amplification, leading to the Ag+ releasing from C-Ag+-C structure and the fluorescence quenching of CdTe QDs by the released Ag+. Furthermore, the detection performance of CdTe QDs modified by 3-mercaptopropionic acid (MPA) or thiomalic acid (TMA) (MPA-capped QDs and TMA-capped QDs) was systematically compared. Experimental results demonstrated that TMA-capped QDs exhibited better detection sensitivity due to their stronger interaction with Ag+. The limits of detection (LODs) of fluorescence and visual analysis were as low as 0.13 amol L-1 and 0.33 amol L-1. This method was successfully applied to the clinical sputum samples from 36 TB patients and 20 healthy individuals, and its quantitative results were highly consistent with those obtained by real-time fluorescent quantitative polymerase chain reaction (RT-qPCR). The proposed approach has the advantages of high sensitivity and specificity, simple operation and low cost, and is expected to be applied in clinical TB screening and diagnosis.
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Affiliation(s)
- Ou Hu
- Department of Neurology, The First Affiliated Hospital, Jinan University, Guangzhou 510630, PR China; Institute of Pharmaceutical Analysis, College of Pharmacy/State Key Laboratory of Bioactive Molecules and Druggability Assessment/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research of China, Jinan University, Guangzhou 510632, PR China; School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Yingyu Gong
- Institute of Pharmaceutical Analysis, College of Pharmacy/State Key Laboratory of Bioactive Molecules and Druggability Assessment/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research of China, Jinan University, Guangzhou 510632, PR China
| | - Yuexiang Chang
- Institute of Pharmaceutical Analysis, College of Pharmacy/State Key Laboratory of Bioactive Molecules and Druggability Assessment/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research of China, Jinan University, Guangzhou 510632, PR China
| | - Yaoju Tan
- State Key Laboratory of Respiratory Disease, Department of Clinical Laboratory, Guangzhou Chest Hospital, Guangzhou 510095, PR China
| | - Zuanguang Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China; School of Health Medicine, Guangzhou Huashang College, Guangzhou 511300, PR China.
| | - Wei Bi
- Department of Neurology, The First Affiliated Hospital, Jinan University, Guangzhou 510630, PR China.
| | - Zhengjin Jiang
- Institute of Pharmaceutical Analysis, College of Pharmacy/State Key Laboratory of Bioactive Molecules and Druggability Assessment/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research of China, Jinan University, Guangzhou 510632, PR China.
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Zhu Y, Feng P, Jiang P, Li K, Huang K, Chen J, Chen P. Biomolecule-regulation of fluorescent probe signaling: Homogeneous rapid portable protease sensing in serum. Anal Chim Acta 2024; 1316:342824. [PMID: 38969403 DOI: 10.1016/j.aca.2024.342824] [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: 02/23/2024] [Revised: 04/27/2024] [Accepted: 06/04/2024] [Indexed: 07/07/2024]
Abstract
BACKGROUND As is well documented, prostate cancer (PCa) being the second most prevalent cancer in men worldwide, emphasizing the importance of early diagnosis for prognosis. However, conventional prostate-specific antigen (PSA) testing lacks sufficient diagnostic efficiency due to its relatively low sensitivity and limited detection range. Mounting evidence suggests that matrix metalloproteinase 9 (MMP-9) expression increases with the aggressive behavior of PCa, highlighting the significance of detecting the serum level of MMP-9 in patients. Developing a non-immune rapid, portable MMP-9 detection strategy and investigating its representativeness of PCa serum markers hold considerable implications. RESULTS Herein, our study developed a simple, homogeneous dual fluorescence and smartphone-assisted red-green-blue (RGB) visualization peptide sensor of MMP-9, utilizing cadmium telluride quantum dots (CdTe QDs) and calcein as signal reporters. The essence of our approach revolves around the proteolytic ability of MMP-9, exploiting the selective recognition of molecule-Cu2+ complexes with different molecular weights by CdTe QDs and calcein. Under optimized conditions, the limits of detection (LODs) for MMP-9 were 0.5 pg/mL and 6 pg/mL using fluorescence and RGB values readouts, respectively. Indeed, this strategy exhibited robust specificity and anti-interference ability. MMP-9 was quantified in 42 clinical serum samples via dual-fluorescence analysis, with 12 samples being visually identified with a smartphone. According to receiver operating characteristic curve (ROC) analysis, its sensitivity and specificity were 90 % and 100 %, respectively, with an area under curve (AUC) value of 0.903. SIGNIFICANCE AND NOVELTY Of note, the results of the aforementioned analysis were highly consistent with the serum level of PSA, clinical color Doppler flow imaging (CDFI), and histopathological results. Therefore, this simple, rapid, homogeneous fluorescence and visualization strategy can reliably measure MMP-9 levels and exhibit promising potential in point-of-care testing (POCT) applications for PCa patients.
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Affiliation(s)
- Yalan Zhu
- Department of Laboratory Medicine, Med+X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Pan Feng
- Department of Laboratory Medicine, Med+X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Pengjun Jiang
- Department of Laboratory Medicine, Med+X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Kai Li
- Center for Archaeological Science, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Ke Huang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
| | - Jie Chen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Piaopiao Chen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
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He Y, Zeng X, Xiong Y, Shen C, Huang K, Chen P. Portable Aptasensor Based on Parallel Rolling Circle Amplification for Tumor-Derived Exosomes Liquid Biopsy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2403371. [PMID: 38923850 PMCID: PMC11348067 DOI: 10.1002/advs.202403371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/05/2024] [Indexed: 06/28/2024]
Abstract
Here, a separation-free and label-free portable aptasensor is developed for rapid and sensitive analysis of tumor-derived exosomes (TEXs). It integrated a parallel rolling circle amplification (RCA) reaction, selective binding of metal ions or small molecules to nucleic acid-specific conformations, and a low-cost, highly sensitive handheld fluorometer. Lung cancer, for example, is targeted with two typical biomarkers (mucin 1 and programmed cell death ligand 1 (PD-L1)) on its exosomes. The affinity of aptamers to the targets modulated the amount of RCA products (T-Hg2+-T and cytosine (C)-rich single-stranded DNA), which in turn affected the fluorescence intensity of quantum dots (QDs) and methylene blue (MB). The results revealed that the limit of detection (LOD) of the handheld fluorometer for cell-derived exosomes can be as low as 30 particles mL-1. Moreover, its specificity, sensitivity, and area under the curve (AUC) are 93% (14/15), 92% (23/25), and 0.956, as determined by the analysis of 40 clinical samples. Retesting 16 of these samples with the handheld fluorometer yielded strong concordance between the fluorometer results and those acquired from clinical computed tomography (CT) and pathology.
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Affiliation(s)
- Yaqin He
- Department of Laboratory MedicineMed+X Center for ManufacturingNational Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengduSichuan610041China
| | - Xianghu Zeng
- Department of Laboratory MedicineMed+X Center for ManufacturingNational Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengduSichuan610041China
| | - Ying Xiong
- Department of Laboratory MedicineMed+X Center for ManufacturingNational Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengduSichuan610041China
| | - Congcong Shen
- Department of Laboratory MedicineMed+X Center for ManufacturingNational Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengduSichuan610041China
| | - Ke Huang
- College of Chemistry and Material ScienceSichuan Normal UniversityChengduSichuan610068China
| | - Piaopiao Chen
- Department of Laboratory MedicineMed+X Center for ManufacturingNational Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengduSichuan610041China
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Zeng X, Wu C, Xiong Y, Zhan Z, Shen C, Lin F, Zhang J, Chen P. Target proteins-regulated DNA nanomachine-electroactive substance complexes enable separation-free electrochemical detection of clinical exosome. Biosens Bioelectron 2024; 256:116273. [PMID: 38621341 DOI: 10.1016/j.bios.2024.116273] [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: 01/29/2024] [Revised: 03/20/2024] [Accepted: 04/03/2024] [Indexed: 04/17/2024]
Abstract
Simple and reliable profiling of tumor-derived exosomes (TDEs) holds significant promise for the early detection of cancer. Nonetheless, this remains challenging owing to the substantial heterogeneity and low concentration of TDEs. Herein, we devised an accurate and highly sensitive electrochemical sensing strategy for TDEs via simultaneously targeting exosomal mucin 1 (MUC1) and programmed cell death ligand 1 (PD-L1). This approach employs high-affinity aptamers as specific recognition elements, utilizes rolling circle amplification and DNA nanospheres as effective bridges and signal amplifiers, and leverages methylene blue (MB) and doxorubicin (DOX) as robust signal reporters. The crux of this separation- and label-free method is the specific response of MB and DOX to G-quadruplex structures and DNA nanospheres, respectively. Quantifying TDEs using this strategy enabled precise discrimination of lung cancer patients (n = 25) from healthy donors (n = 12), showing 100% specificity (12/12), 92% sensitivity (23/25), and an overall accuracy of 94.6% (35/37), with an area under the receiver operating characteristic curve (AUC) of 0.97. Furthermore, the assay results strongly correlated with findings from computerized tomography and pathological analyses. Our approach could facilitate the early diagnosis of lung cancer through TDEs-based liquid biopsy.
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Affiliation(s)
- Xianghu Zeng
- Department of Laboratory Medicine, Department of Thoracic Surgery, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Chengyong Wu
- Department of Laboratory Medicine, Department of Thoracic Surgery, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ying Xiong
- Department of Laboratory Medicine, Department of Thoracic Surgery, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zixuan Zhan
- Department of Laboratory Medicine, Department of Thoracic Surgery, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Congcong Shen
- Department of Laboratory Medicine, Department of Thoracic Surgery, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Feng Lin
- Department of Laboratory Medicine, Department of Thoracic Surgery, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Junlong Zhang
- Department of Laboratory Medicine, Department of Thoracic Surgery, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Piaopiao Chen
- Department of Laboratory Medicine, Department of Thoracic Surgery, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
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Meng Y, Wang Y, Zhan Z, Chen Y, Zhang C, Peng W, Ying B, Chen P. Fructose@histone synergistically improve the performance of DNA-templated Cu NPs: rapid analysis of LAM in tuberculosis urine samples using a handheld fluorometer and a smartphone RGB camera. J Mater Chem B 2024; 12:6668-6677. [PMID: 38884176 DOI: 10.1039/d4tb00693c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
This study presented a nanoparticle-enhanced aptamer-recognizing homogeneous detection system combined with a portable instrument (NASPI) to quantify lipoarabinomannan (LAM). This system leveraged the high binding affinity of aptamers, the high sensitivity of nanoparticle cascade amplification, and the stabilization effect of dual stabilizers (fructose and histone), and used probe-Cu2+ to achieve LAM detection at concentrations ranging from 10 ag mL-1 to 100 fg mL-1, with a limit of detection of 3 ag mL-1 using a fluorometer. It can also be detected using an independently developed handheld fluorometer or the red-green-blue (RGB) camera of a smartphone, with a minimum detection concentration of 10 ag mL-1. We validated the clinical utility of the biosensor by testing the LAM in the urine of patients. Forty urine samples were tested, with positive LAM results in the urine of 18/20 tuberculosis (TB) cases and negative results in the urine of 6/10 latent tuberculosis infection cases and 10/10 non-TB cases. The assay results revealed a 100% specificity and a 90% sensitivity, with an area under the curve of 0.9. We believe that the NASPI biosensor can be a promising clinical tool with great potential to convert LAM into clinical indicators for TB patients.
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Affiliation(s)
- Yanming Meng
- Department of Laboratory Medicine, Med + X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Yue Wang
- Department of Laboratory Medicine, Med + X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Zixuan Zhan
- Department of Laboratory Medicine, Med + X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Yuemei Chen
- Department of Laboratory Medicine, Med + X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Chunying Zhang
- Department of Laboratory Medicine, Med + X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Wu Peng
- Department of Laboratory Medicine, Med + X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Binwu Ying
- Department of Laboratory Medicine, Med + X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Piaopiao Chen
- Department of Laboratory Medicine, Med + X Center for Manufacturing, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
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Jiang P, Zhan Z, Peng Y, Wu C, Wang Y, Wu L, Shi S, Ying B, Wei Y, Chen P, Chen J. Steric Hindrance-Mediated Enzymatic Reaction Enable Homogeneous Dual Fluorescence Indicators Aptasensing of Hepatocellular Carcinoma CTCs. Anal Chem 2024; 96:10705-10713. [PMID: 38910291 DOI: 10.1021/acs.analchem.4c01624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Circulating tumor cells (CTCs) serve as important biomarkers in the liquid biopsy of hepatocellular carcinoma (HCC). Herein, a homogeneous dual fluorescence indicators aptasensing strategy is described for CTCs in HCC, with the core assistance of a steric hindrance-mediated enzymatic reaction. CTCs in the sample could specifically bind to a 5'-biotin-modified glypican-3 (GPC3) aptamer and remove the steric hindrance formed by the biotin-streptavidin system. This influences the efficiency of the terminal deoxynucleotidyl transferase enzymatic reaction. Then, methylene blue (MB) was introduced to react with the main product poly cytosine (polyC) chain, and trivalent cerium ion (Ce3+) was added to react with the byproduct pyrophosphate to form fluorescent pyrophosphate cerium coordination polymeric nanoparticles. Finally, the CTCs were quantified by dual fluorescence indicators analysis. Under optimized conditions, the linear range was 5 to 104 cells/mL, and the limits of detection reached 2 cells/mL. Then, 40 clinical samples (15 healthy and 25 HCC patients) were analyzed. The receiver operating characteristic curve analysis revealed an area under the curve of 0.96, a sensitivity of 92%, and a specificity of 100%. Therefore, this study established a sensitive and accurate CTCs sensing system for clinical HCC patients, promoting early tumor diagnosis.
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Affiliation(s)
- Pengjun Jiang
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zixuan Zhan
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yufu Peng
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Chengyong Wu
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yue Wang
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Longfei Wu
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Shiya Shi
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Binwu Ying
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yonggang Wei
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Piaopiao Chen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jie Chen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Liver Surgery, National Clinical Research Center for Geriatrics, W Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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Hjelmar KJS, de Armas LR, Goldberg E, Pallikkuth S, Mathad J, Montepiedra G, Gupta A, Pahwa S. Impact of in-utero exposure to HIV and latent TB on infant humoral responses. Front Immunol 2024; 15:1423435. [PMID: 38994354 PMCID: PMC11236605 DOI: 10.3389/fimmu.2024.1423435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 06/11/2024] [Indexed: 07/13/2024] Open
Abstract
Introduction Latent tuberculosis infection (LTBI) is a common coinfection in people living with HIV (PWH). How LTBI and HIV exposure in utero influence the development of infant humoral immunity is not well characterized. To address this question, we assessed the relationship between maternal humoral responses in pregnant women with HIV or with HIV/LTBI on humoral responses in infants to BCG vaccination and TB acquisition. Methods Plasma samples were obtained from mother infant pairs during pregnancy (14-34 wks gestation) and in infants at 12 and 44 wks of age from the IMPAACT P1078 clinical trial. LTBI was established by Interferon gamma release assay (IGRA). Progression to active TB (ATB) disease was observed in 5 women at various times after giving birth. All infants were BCG vaccinated at birth and tested for IGRA at 44 weeks. Mtb (PPD, ESAT6/CFP10, Ag85A, LAM), HIV (GP120), and Influenza (HA) specific IgG, IgM, and IgA were measured in plasma samples using a bead based Luminex assay with Flexmap 3D. Results In maternal plasma there were no differences in Mtb-specific antibodies or viral antibodies in relation to maternal IGRA status. ATB progressors showed increases in Mtb-specific antibodies at diagnosis compared to study entry. However, when compared to the non-progressors at entry, progressors had higher levels of Ag85A IgG and reduced ESAT6/CFP10 IgG and LAM IgG, IgM, and IgA1. All infants showed a decrease in IgG to viral antigens (HIV GP120 and HA) from 12 to 44 weeks attributed to waning of maternally transferred antibody titers. However, Mtb-specific (PPD, ESAT6/CFP10, Ag85A, and LAM) IgG and IgM increased from 12 to 44 weeks. HIV and HA IgG levels in maternal and 12-week infant plasma were highly correlated, and ESAT6/CFP10 IgG and LAM IgG showed a relationship between maternal and infant Abs. Finally, in the subset of infants that tested IGRA positive at 44 weeks, we observed a trend for lower LAM IgM compared to IGRA- infants at 44 weeks. Discussion The results from our study raise the possibility that antibodies to LAM are associated with protection from progression to ATB and support further research into the development of humoral immunity against TB through infection or vaccination.
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Affiliation(s)
- Kimberly J. S. Hjelmar
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Lesley R. de Armas
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Evan Goldberg
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Suresh Pallikkuth
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Jyoti Mathad
- Department of Medicine, Department of Obstetrics & Gynecology, Weill Cornell Medical College, New York City, NY, United States
| | - Grace Montepiedra
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Amita Gupta
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Savita Pahwa
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, United States
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Lyu L, Jia H, Liu Q, Ma W, Li Z, Pan L, Zhang X. Individualized lipid profile in urine-derived extracellular vesicles from clinical patients with Mycobacterium tuberculosis infections. Front Microbiol 2024; 15:1409552. [PMID: 38873163 PMCID: PMC11169924 DOI: 10.3389/fmicb.2024.1409552] [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: 04/02/2024] [Accepted: 05/06/2024] [Indexed: 06/15/2024] Open
Abstract
Background Lipids are a key nutrient source for the growth and reproduction of Mycobacterium tuberculosis (Mtb). Urine-derived extracellular vesicles (EVs), because of its non-invasive sampling, lipid enrichment, and specific sorting character, have been recognized as a promising research target for biomarker discovery and pathogenesis elucidation in tuberculosis (TB). We aim to profile lipidome of Mtb-infected individuals, offer novel lipid signatures for the development of urine-based TB testing, and provide new insights into the lipid metabolism after Mtb infection. Methods Urine-derived extracellular vesicles from 41 participants (including healthy, pulmonary tuberculosis, latent tuberculosis patients, and other lung disease groups) were isolated and individually detected using targeted lipidomics and proteomics technology platforms. Biomarkers were screened by multivariate and univariate statistical analysis and evaluated by SPSS software. Correlation analyses were performed on lipids and proteins using the R Hmisc package. Results Overall, we identified 226 lipids belonging to 14 classes. Of these, 7 potential lipid biomarkers for TB and 6 for latent TB infection (LTBI) were identified, all of which were classified into diacylglycerol (DAG), monoacylglycerol (MAG), free fatty acid (FFA), and cholesteryl ester (CE). Among them, FFA (20:1) was the most promising biomarker target in diagnosing TB/LTBI from other compared groups and also have great diagnostic performance in distinguishing TB from LTBI with AUC of 0.952. In addition, enhanced lipolysis happened as early as individuals got latent Mtb infection, and ratio of raft lipids was gradually elevated along TB progression. Conclusion This study demonstrated individualized lipid profile of urinary EVs in patients with Mtb infection, revealed novel potential lipid biomarkers for TB/LTBI diagnosis, and explored mechanisms by which EV lipid raft-dependent bio-processes might affect pathogenesis. It lays a solid foundation for the subsequent diagnosis and therapeutic intervention of TB.
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Affiliation(s)
- Lingna Lyu
- Department of Gastroenterology and Hepatology, Beijing You’an Hospital Affiliated to Capital Medical University, Beijing, China
- Beijing Key Laboratory for Drug Resistant Tuberculosis Research, Beijing Chest Hospital Affiliated to Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Hongyan Jia
- Beijing Key Laboratory for Drug Resistant Tuberculosis Research, Beijing Chest Hospital Affiliated to Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Qiuyue Liu
- Beijing Key Laboratory for Drug Resistant Tuberculosis Research, Beijing Chest Hospital Affiliated to Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Wenxia Ma
- Department of Gastroenterology and Hepatology, Beijing You’an Hospital Affiliated to Capital Medical University, Beijing, China
| | - Zihui Li
- Beijing Key Laboratory for Drug Resistant Tuberculosis Research, Beijing Chest Hospital Affiliated to Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Liping Pan
- Beijing Key Laboratory for Drug Resistant Tuberculosis Research, Beijing Chest Hospital Affiliated to Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Xiuli Zhang
- The Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, China
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Wang Y, Shen C, Wu C, Zhan Z, Qu R, Xie Y, Chen P. Self-Assembled DNA Machine and Selective Complexation Recognition Enable Rapid Homogeneous Portable Quantification of Lung Cancer CTCs. RESEARCH (WASHINGTON, D.C.) 2024; 7:0352. [PMID: 38711475 PMCID: PMC11070850 DOI: 10.34133/research.0352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 03/21/2024] [Indexed: 05/08/2024]
Abstract
In this study, we systematically investigated the interactions between Cu2+ and various biomolecules, including double-stranded DNA, Y-shaped DNA nanospheres, the double strand of the hybridization chain reaction (HCR), the network structure of cross-linked HCR (cHCR), and small molecules (PPi and His), using Cu2+ as an illustrative example. Our research demonstrated that the coordination between Cu2+ and these biomolecules not only is suitable for modulating luminescent material signals through complexation reactions with Cu2+ but also enhances signal intensities in materials based on chemical reactions by increasing spatial site resistance and local concentration. Building upon these findings, we harnessed the potential for signal amplification in self-assembled DNA nanospheres and the selective complexation modulation of calcein in conjunction with the aptamer targeting mucin 1 as a recognition probe. We applied this approach to the analysis of circulating tumor cells, with the lung cancer cell line A549 serving as a representative model. Our assay, utilizing both a fluorometer and a handheld detector, achieved impressive detection limits of ag/ml and single-cell levels for mucin 1 and A549 cells, and this approach was successfully validated using 46 clinical samples, yielding 100% specificity and 86.5% sensitivity. Consequently, our strategy has paved the way for more portable and precise disease diagnosis.
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Affiliation(s)
| | | | | | | | | | | | - Piaopiao Chen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, West China Hospital,
Sichuan University, Chengdu, Sichuan 610041, China
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10
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Wu C, Yan L, Zhan Z, Qu R, Wang Y, Zeng X, Yang H, Feng P, Wei Z, Chen P. Biomolecules-mediated electrochemical signals of Cu 2+: Y-DNA nanomachines enable homogeneous rapid one-step assay of lung cancer circulating tumor cells. Biosens Bioelectron 2024; 249:116030. [PMID: 38241796 DOI: 10.1016/j.bios.2024.116030] [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: 11/26/2023] [Revised: 01/01/2024] [Accepted: 01/10/2024] [Indexed: 01/21/2024]
Abstract
This study presents a straightforward efficient technique for extracting circulating tumor cells (CTCs) and a rapid one-step electrochemical method (45 min) for detecting lung cancer A549 cells based on the specific recognition of mucin 1 using aptamers and the modulation of Cu2+ electrochemical signals by biomolecules. The CTCs separation and enrichment process can be completed within 45 min using lymphocyte separation solution (LSS), erythrocyte lysis solution (ELS), and three centrifugations. Besides, the influence of various biomolecules on Cu2+ electrochemical signals is comprehensively discussed, with DNA nanospheres selected as the medium. Three single-stranded DNA sequences were hybridized to form Y-shaped DNA (Y-DNA), creating DNA nanospheres. Upon specific capture of mucin 1 by the aptamer, most DNA nanospheres could form complexes with Cu2+ (DNA nanosphere-Cu2+), significantly reducing the concentration of free Cu2+. Our approach yielded the limit of detection (LOD) of 2 ag/mL for mucin 1 and 1 cell/mL for A549 cells. 39 clinical blood samples were used for further validation, yielding results closely correlated with pathological, computed tomography (CT) scan findings and folate receptor-polymerase chain reaction (FR-PCR) kits. The receiver operating characteristic (ROC) curve displayed an area under the curve (AUC) value of 0.960, demonstrating 100% specificity and 93.1% sensitivity for the assay. Taken together, our findings indicate that this straightforward and efficient pretreatment and rapid, highly sensitive electrochemical assay holds great promise for liquid biopsy-based tumor detection using CTCs.
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Affiliation(s)
- Chengyong Wu
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Li Yan
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zixuan Zhan
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Runlian Qu
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yue Wang
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xianghu Zeng
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Haihui Yang
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Pan Feng
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zeliang Wei
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Piaopiao Chen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, National Clinical Research Center for Geriatrics, Out-patient Department, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
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11
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He Y, Zhan Z, Yan L, Wu C, Wang Y, Shen C, Huang K, Wei Z, Lin F, Ying B, Li W, Chen P. Single-Cell Liquid Biopsy of Lung Cancer: Ultra-Simplified Efficient Enrichment of Circulating Tumor Cells and Hand-Held Fluorometer Portable Testing. ACS NANO 2024; 18:5017-5028. [PMID: 38305181 DOI: 10.1021/acsnano.3c11147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Herein, we propose a paper-based laboratory via enzyme-free nucleic acid amplification and nanomaterial-assisted cation exchange reactions (CERs) assisted single-cell-level analysis (PLACS). This method allowed for the rapid detection of mucin 1 and trace circulating tumor cells (CTCs) in the peripheral blood of lung cancer patients. Initially, an independently developed method requiring one centrifuge, two reagents (lymphocyte separation solution and erythrocyte lysate), and a three-step, 45 min sample pretreatment was employed. The core of the detection approach consisted of two competitive selective identifications: copper sulfide nanoparticles (CuS NPs) to C-Ag+-C and Ag+, and dual quantum dots (QDs) to Cu2+ and CuS NPs. To facilitate multimodal point-of-care testing (POCT), we integrated solution visualization, test strip length reading, and a self-developed hand-held fluorometer readout. These methods were detectable down to ag/mL of mucin 1 concentration and the single-cell level. Forty-seven clinical samples were assayed by fluorometer, yielding 94% (30/32) sensitivity and 100% (15/15) specificity with an area under the curve (AUC) of 0.945. Nine and 15 samples were retested by a test strip and hand-held fluorometer, respectively, with an AUC of 0.95. All test results were consistent with the clinical imaging and the folate receptor (FR)-PCR kit findings, supporting its potential in early diagnosis and postoperative monitoring.
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Affiliation(s)
- Yaqin He
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zixuan Zhan
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Li Yan
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Chengyong Wu
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yue Wang
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Congcong Shen
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ke Huang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Zeliang Wei
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Feng Lin
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Binwu Ying
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Weimin Li
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Piaopiao Chen
- Department of Laboratory Medicine, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Department of Thoracic Surgery, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, Core Facilities of West China Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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12
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Wang Y, Chen X, Shen X, He Y, Zhan Z, Liu C, Xie Y, Lin F, Huang K, Chen P. Simplified Rapid Enrichment of CTCs and Selective Recognition Prereduction Enable a Homogeneous ICP-MS Liquid Biopsy Strategy of Lung Cancer. Anal Chem 2023; 95:14244-14252. [PMID: 37705297 DOI: 10.1021/acs.analchem.3c02302] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
The effective enrichment and hypersensitivity analysis of circulating tumor cells (CTCs) in clinical whole blood samples are highly significant for clinical tumor liquid biopsy. In this study, we established an easy operation and affordable CTCs extraction technique while simultaneously performing the homogeneous inductively coupled plasma mass spectrometry (ICP-MS) determination of CTCs in lung cancer clinical samples based on selective recognition reactions and prereduction phenomena. Our strategy allowed for the pretreatment of whole blood samples in less than 45 min after step-by-step centrifugation, which only required lymphocyte separation solution and erythrocyte lysate. Furthermore, a three-stage signal amplification system consisting of catalytic hairpin assembly (CHA), selective recognition for C-Ag+-C structures and Ag+ of copper sulfide nanoparticles (CuS NPs), and prereduction of Hg2+ through ascorbic acid (AA) was constructed by using mucin 1 as the CTCs marker and the aptamer for identification probes. In optimal conditions, the detection limits of ICP-MS were as low as 0.3 ag/mL for mucin 1 and 0.25 cells/mL for A549 cells. This method analyzed CTCs in 58 clinical samples quantitatively, and the results were consistent with clinical CT images and pathological findings. The area under the curve (AUC) value of the receiver operating characteristic (ROC) curve was 0.957, which provided a specificity of 100% and a sensitivity of 91.5% for the assay. Therefore, the simplicity of the extraction method, the accessibility, and the high sensitivity of the assay method make the strategies attractive for clinical CTCs testing applications.
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Affiliation(s)
- Yue Wang
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Thoracic Surgery, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xin Chen
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Xu Shen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Thoracic Surgery, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yaqin He
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Thoracic Surgery, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zixuan Zhan
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Thoracic Surgery, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Chengxin Liu
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Thoracic Surgery, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yi Xie
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Thoracic Surgery, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Feng Lin
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Thoracic Surgery, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ke Huang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Piaopiao Chen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Department of Thoracic Surgery, Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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13
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Yan Z, Wang J, Pang Y, Wang X, Yi L, Wei P, Ruan H, Gu M, Zhang H, Yang X. Immunoassay with Novel Paired Antibodies for Detection of Lipoarabinomannan in the Pleural Fluid and Plasma of Patients with Tuberculous Pleurisy. Microorganisms 2023; 11:2259. [PMID: 37764103 PMCID: PMC10535579 DOI: 10.3390/microorganisms11092259] [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: 07/20/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Tuberculous pleurisy (TP) is one of the most common forms of extrapulmonary tuberculosis, but its diagnosis is challenging. Lipoarabinomannan (LAM) antigen is a biomarker for Mycobacterium tuberculosis (Mtb) infection. LAM detection has potential as an auxiliary diagnostic method for TP. We have successfully generated five rabbit anti-LAM monoclonal antibodies (BJRbL01, BJRbL03, BJRbL20, BJRbL52, and BJRbL76). Here, anti-LAM antibodies were tested to detect LAM in the pleural fluid and plasma of patients with TP by sandwich enzyme-linked immunosorbent assays (ELISAs). The results revealed that all of the anti-LAM antibodies were successfully used as capture and detection antibodies in sandwich ELISAs. The BJRbL01/BJRbL01-Bio pair showed better performance than the other antibody pairs for detecting mycobacterial clinical isolates and had a limit of detection of 62.5 pg/mL for purified LAM. LAM levels were significantly higher in the pleural fluid and plasma of patients with TP than in those of patients with malignant pleural effusion or the plasma of non-TB, and LAM levels in the pleural fluid and plasma were positively correlated. Moreover, LAM levels in the pleural fluid sample were significantly higher in confirmed TP patients than in clinically diagnosed TP patients. Our studies provide novel LAM detection choices in the pleural fluid and plasma of TP patients and indicate that LAM detection assay has an auxiliary diagnostic value for TP, which may help to improve the diagnosis of TP.
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Affiliation(s)
- Zhuohong Yan
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Jinghui Wang
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
- Department of Medical Oncology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Yu Pang
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Xiaojue Wang
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Ling Yi
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Panjian Wei
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Hongyun Ruan
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Meng Gu
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Hongtao Zhang
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Xinting Yang
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
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14
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Huang H, Qu R, Wu K, Xu J, Li J, Lu S, Sui G, Fan XY. Proteinase K-pretreated ConA-based ELISA assay: a novel urine LAM detection strategy for TB diagnosis. Front Microbiol 2023; 14:1236599. [PMID: 37692407 PMCID: PMC10485274 DOI: 10.3389/fmicb.2023.1236599] [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: 06/08/2023] [Accepted: 08/07/2023] [Indexed: 09/12/2023] Open
Abstract
Objectives Lipoarabinomannan (LAM), an abundant cell wall glycolipid of mycobacteria including Mycobacterium tuberculosis (Mtb), is a promising TB diagnostic marker. The current commercially available urine LAM assays are not sufficiently sensitive, and more novel detection strategies are urgently needed to fill the current diagnostic gap. Methods A proteinase K-pretreated Concanavalin A (ConA)-based ELISA assay was developed. Diagnostic performance was assessed by several bacterial strains and clinical urine samples. Results The limit of detection (LoD) of the assay against ManLAM was 6 ng/ml. The assay reacted strongly to Mtb H37Rv and M. bovis BCG, intermediately to M. smegmatis mc2155, and weakly to four non-mycobacteria pathogens. This method could distinguish TB patients from healthy controls (HCs) and close contacts (CCs) in 71 urine samples treated with proteinase K, which increases urine LAM antibody reactiveness. In TB+HIV+ and TB+HIV- patients, the sensitivity was 43.8 and 37.5%, respectively, while the specificity was 100.0%. The areas under ROC curves (AUCs) were 0.74 and 0.82, respectively. Conclusion This study implies that ConA can be paired with antibodies to detect LAM. Proteinase K treatment could effectively enhance the sensitivity by restoring the reactiveness of antibodies to LAM.
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Affiliation(s)
- Huan Huang
- Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, China
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Rong Qu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, China
| | - Kang Wu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jinchuan Xu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jianhui Li
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Shuihua Lu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, Shenzhen, China
| | - Guodong Sui
- Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, China
- Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Xiao-Yong Fan
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, China
- Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
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