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Sciurti E, Signore MA, Velardi L, Di Corato R, Blasi L, Campa A, Martucci MC, Siciliano PA, Francioso L. Label-free electrochemical biosensor for direct detection of Oncostatin M (OSM) inflammatory bowel diseases (IBD) biomarker in human serum. Talanta 2024; 271:125726. [PMID: 38316076 DOI: 10.1016/j.talanta.2024.125726] [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: 11/24/2023] [Revised: 12/22/2023] [Accepted: 01/26/2024] [Indexed: 02/07/2024]
Abstract
Oncostatin M (OSM) is an interleukin-6 (IL-6) member family cytokine implicated in the pathogenesis of chronic diseases including inflammatory bowel disease (IBD). OSM is a novel diagnostic biomarker over-expressed in the serum of IBD patients. This paper reports on the first electrochemical OSM immunosensor, developed using a multistep fabrication process aimed at covalently immobilizing OSM antibodies on a mixed self-assembled monolayer coated gold working electrode. Cyclic voltammetry, atomic force microscopy (AFM), IR spectroscopy and optical characterizations were used to validate the sensor functionalization protocol. Electrochemical impedance spectroscopy (EIS) measurements were performed to assess the reliability of the immunosensor preparation and to verify the antibody-antigen complexes formation. The label-free immunosensor showed high sensitivity identifying OSM at clinically relevant concentrations (37-1000 pg mL-1) with low detection limit of 2.86 pg mL-1. Both sensitivity and selectivity of the proposed immunosensor were also demonstrated in human serum in the presence of interfering biomarkers, making it an innovative potential platform for the OSM biomarker detection in IBD patients' serum.
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Affiliation(s)
- E Sciurti
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy.
| | - M A Signore
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy
| | - L Velardi
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy
| | - R Di Corato
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy
| | - L Blasi
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy
| | - A Campa
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy
| | - M C Martucci
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy
| | - P A Siciliano
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy
| | - L Francioso
- Institute for Microelectronics and Microsystems - National Research Council (IMM - CNR), Via Monteroni, 73100 Lecce, Italy
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Han JP, Lee Y, Lee JH, Chung HY, Lee GS, Nam YR, Choi M, Moon KS, Lee H, Lee H, Yeom SC. In vivo genome editing using 244- cis LNPs and low-dose AAV achieves therapeutic threshold in hemophilia A mice. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 34:102050. [PMID: 37916225 PMCID: PMC10616378 DOI: 10.1016/j.omtn.2023.102050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 10/04/2023] [Indexed: 11/03/2023]
Abstract
Gene therapy and rebalancing therapy have emerged as promising approaches for treating hemophilia A, but there are limitations, such as temporary efficacy due to individual differences. Genome editing for hemophilia has shown long-term therapeutic potential in preclinical trials. However, a cautious approach is necessary because genome editing is irreversible. Therefore, we attempted to induce low-level human factor 8 (hF8) gene knockin (KI) using 244-cis lipid nanoparticles and low-dose adeno-associated virus to minimize side effects and achieve a therapeutic threshold in hemophilia A mice. We selected the serpin family C member 1, SerpinC1, locus as a target to enable a combined rebalancing strategy with hF8 KI to augment efficacy. This strategy improved blood coagulation activity and reduced hemophilic complications without adverse effects. Furthermore, hemophilic mice with genome editing exhibit enhanced survival for 40 weeks. Here, we demonstrate an effective, safe, and sustainable treatment for hemophilia A. This study provides valuable information to establish safe and long-term genome-editing-mediated treatment strategies for treating hemophilia and other protein-deficient genetic diseases.
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Affiliation(s)
- Jeong Pil Han
- Graduate School of International Agricultural Technology and Institute of Green BioScience and Technology, Seoul National University, Pyeongchang, Gangwon 25354, Korea
| | - Yeji Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seodaemun-gu, Seoul 03760, Korea
| | - Jeong Hyeon Lee
- Graduate School of International Agricultural Technology and Institute of Green BioScience and Technology, Seoul National University, Pyeongchang, Gangwon 25354, Korea
| | - Hye Yoon Chung
- Graduate School of International Agricultural Technology and Institute of Green BioScience and Technology, Seoul National University, Pyeongchang, Gangwon 25354, Korea
| | - Geon Seong Lee
- Graduate School of International Agricultural Technology and Institute of Green BioScience and Technology, Seoul National University, Pyeongchang, Gangwon 25354, Korea
| | - Yu Ri Nam
- Deartment of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Yuseong-gu, Daejeon 34141, Korea
| | - Myeongjin Choi
- Department of Advanced Toxicology Research, Korea Institute of Toxicology, Yuseong-gu, Daejeon 34114, Korea
| | - Kyoung-Sik Moon
- Department of Advanced Toxicology Research, Korea Institute of Toxicology, Yuseong-gu, Daejeon 34114, Korea
| | - Haeshin Lee
- Deartment of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Yuseong-gu, Daejeon 34141, Korea
| | - Hyukjin Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seodaemun-gu, Seoul 03760, Korea
| | - Su Cheong Yeom
- Graduate School of International Agricultural Technology and Institute of Green BioScience and Technology, Seoul National University, Pyeongchang, Gangwon 25354, Korea
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Gwanank-gu, Seoul 08826, Korea
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Verma N, Sutariya P, Patel T, Shukla M, Pandya A. Tailored calix[4]arene-gold nanoconjugate as a ultra-sensitive immunosensing nanolabel. Biomed Microdevices 2022; 25:1. [PMID: 36449135 DOI: 10.1007/s10544-022-00640-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2022] [Indexed: 12/03/2022]
Abstract
The construction of highly sensitive and specific immunosensing nanolabels have attracted tremendous attention in the development of reliable point-of-care disease diagnostics. However, there are still challenges with traditional immunoassays, such as complicated and time-consuming procedure, the use of enzyme label, non-specificity, and require readers for detection. Therefore, we have designed and developed site-directed antibody-immobilized calix[4]arene-gold nanoconjugate based colorimetric immunosensing nanolabel to offer high sensitivity. The prepared nanolabel enabled oriented binding of the antibodies by providing full accessibility of Fab domain for antigen binding. The improved sensitivity of the developed nanolabel was evaluated using vertical flow immunoassay (VFIA) for detecting C-reactive protein (CRP) with a lower detection limit up to 1 ng/ml. Our developed nanolabel was found to be highly specific, easy, quick, and appropriate for onsite detection. The nanolabel is validated with spiked blood samples which exhibited ~90% recovery having a relative error of ~2%. Furthermore, the nanolabel was also used for screening of human blood real samples which showed relative error of ~0.6%. The developed nanolabel can be utilized as a potential nanolabel for the quantitative detection of various biomolecules in clinical samples.
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Affiliation(s)
- Nidhi Verma
- Department of Biotechnology and Bioengineering, Institute of Advanced Research, Gandhinagar, Gujarat, 382426, India
| | - Pinkesh Sutariya
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, Gujarat, 388120, India
| | - Tvarit Patel
- Department of Biotechnology and Bioengineering, Institute of Advanced Research, Gandhinagar, Gujarat, 382426, India
| | - Malvika Shukla
- Department of Biotechnology and Bioengineering, Institute of Advanced Research, Gandhinagar, Gujarat, 382426, India
| | - Alok Pandya
- Department of Biotechnology and Bioengineering, Institute of Advanced Research, Gandhinagar, Gujarat, 382426, India.
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Review on the applications of atomic force microscopy imaging in proteins. Micron 2022; 159:103293. [DOI: 10.1016/j.micron.2022.103293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/22/2022] [Accepted: 05/06/2022] [Indexed: 11/19/2022]
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Bu L, Luo T, Yan J, Li G, Huang J. Single-molecule analysis of genome-wide DNA methylation by fiber FISH coupled with atomic force microscopy. Analyst 2022; 147:1559-1566. [DOI: 10.1039/d2an00216g] [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
A straightforward single-molecule approach was developed for identifying whole-genome DNA methylation through fiber-FISH coupled with AFM. This method has advantages of low DNA input, reproduction, long reads and low cost.
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Affiliation(s)
- Lingli Bu
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Biomedical Sciences, Hunan University, Changsha 410082, China
| | - Tao Luo
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Biomedical Sciences, Hunan University, Changsha 410082, China
| | - Jiangyu Yan
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Biomedical Sciences, Hunan University, Changsha 410082, China
| | - Guorui Li
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Biomedical Sciences, Hunan University, Changsha 410082, China
| | - Jing Huang
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, School of Biomedical Sciences, Hunan University, Changsha 410082, China
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