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Vasudevan A, Tharayil V, Raffals LH, Bruining DH, Becker M, Murad MH, Loftus EV. Systematic Review and Meta-analysis: The Association Between Serum Ustekinumab Trough Concentrations and Treatment Response in Inflammatory Bowel Disease. Inflamm Bowel Dis 2024; 30:660-670. [PMID: 37071852 PMCID: PMC10988107 DOI: 10.1093/ibd/izad065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Indexed: 04/20/2023]
Abstract
BACKGROUND Optimizing therapy and monitoring response are integral aspects of inflammatory bowel disease treatment. We conducted a systematic review and meta-analysis to determine whether serum ustekinumab trough concentrations during maintenance therapy were associated with ustekinumab treatment response in patients with inflammatory bowel disease. METHODS A systematic review was performed to March 21, 2022, to identify studies using MEDLINE, EMBASE, and the Cochrane library. We included studies that reported the association between serum ustekinumab trough concentrations with clinical or endoscopic remission. Outcome measures were combined across studies using the random-effects model with an odds ratio (OR) for binary outcomes of endoscopic and clinical remission. RESULTS We identified 14 observational studies that were included in the analysis for clinical remission (919 patients, 63% with Crohn's disease) or endoscopic remission (290 patients, all with Crohn's disease). Median ustekinumab trough concentrations were higher amongst individuals achieving clinical remission compared with those not achieving remission (mean difference, 1.6 ug/mL; 95% confidence interval [CI], 0.21-3.01 ug/mL). Furthermore, individuals with median serum trough concentration in the fourth quartile were significantly more likely to achieve clinical (OR, 3.61; 95% CI, 2.11-6.20) but not endoscopic remission (OR, 4.67; 95% CI, 0.86-25.19) compared with those with first quartile median trough concentrations. CONCLUSION Based on the results of this meta-analysis primarily relating to patients with Crohn's disease on maintenance ustekinumab treatment, it appears that there is an association between higher ustekinumab trough concentration and clinical outcomes. Prospective studies are required to determine whether proactive dose adjustments of ustekinumab therapy provides additional clinical benefit.
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Affiliation(s)
- Abhinav Vasudevan
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA lol
| | - Vivek Tharayil
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA lol
| | - Laura H Raffals
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA lol
| | - David H Bruining
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA lol
| | - Michelle Becker
- Department of Pharmacy, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Mohammad Hassan Murad
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Edward V Loftus
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA lol
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De-Simone SG, Napoleão-Pêgo P, Gonçalves PS, Lechuga GC, Mandonado A, Graeff-Teixeira C, Provance DW. Angiostrongilus cantonensis an Atypical Presenilin: Epitope Mapping, Characterization, and Development of an ELISA Peptide Assay for Specific Diagnostic of Angiostrongyliasis. MEMBRANES 2022; 12:membranes12020108. [PMID: 35207030 PMCID: PMC8878667 DOI: 10.3390/membranes12020108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/06/2022] [Accepted: 01/06/2022] [Indexed: 12/10/2022]
Abstract
Background: Angiostrongyliasis, the leading cause universal of eosinophilic meningitis, is an emergent disease due to Angiostrongylus cantonensis (rat lungworm) larvae, transmitted accidentally to humans. The diagnosis of human angiostrongyliasis is based on epidemiologic characteristics, clinical symptoms, medical history, and laboratory findings, particularly hypereosinophilia in blood and cerebrospinal fluid. Thus, the diagnosis is difficult and often confused with those produced by other parasitic diseases. Therefore, the development of a fast and specific diagnostic test for angiostrongyliasis is a challenge mainly due to the lack of specificity of the described tests, and therefore, the characterization of a new target is required. Material and Methods: Using bioinformatics tools, the putative presenilin (PS) protein C7BVX5-1 was characterized structurally and phylogenetically. A peptide microarray approach was employed to identify single and specific epitopes, and tetrameric epitope peptides were synthesized to evaluate their performance in an ELISA-peptide assay. Results: The data showed that the A. cantonensis PS protein presents nine transmembrane domains, the catalytic aspartyl domain [(XD (aa 241) and GLGD (aa 332–335)], between TM6 and TM7 and the absence of the PALP and other characteristics domains of the class A22 and homologous presenilin (PSH). These individualities make it an atypical sub-branch of the PS family, located in a separate subgroup along with the enzyme Haemogonchus contournus and separated from other worm subclasses. Twelve B-linear epitopes were identified by microarray of peptides and validated by ELISA using infected rat sera. In addition, their diagnostic performance was demonstrated by an ELISA-MAP4 peptide. Conclusions: Our data show that the putative AgPS is an atypical multi-pass transmembrane protein and indicate that the protein is an excellent immunological target with two (PsAg3 and PsAg9) A. costarisencis cross-reactive epitopes and eight (PsAg1, PsAg2, PsAg6, PsAg7, PsAg8, PsAg10, PsAg11, PsAg12) apparent unique A. cantonensis epitopes. These epitopes could be used in engineered receptacle proteins to develop a specific immunological diagnostic assay for angiostrongyliasis caused by A. cantonensis.
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Affiliation(s)
- Salvatore G. De-Simone
- Center of Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation on Neglected Diseases (INCT-IDN), FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (P.N.-P.); (P.S.G.); (G.C.L.); (D.W.P.J.)
- Laboratory of Epidemiology and Molecular Systematics (LESM), Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil
- Department of Cellular and Molecular Biology, Biology Institute, Federal Fluminense University, Niterói 24220-900, RJ, Brazil
- Correspondence:
| | - Paloma Napoleão-Pêgo
- Center of Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation on Neglected Diseases (INCT-IDN), FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (P.N.-P.); (P.S.G.); (G.C.L.); (D.W.P.J.)
| | - Priscila S. Gonçalves
- Center of Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation on Neglected Diseases (INCT-IDN), FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (P.N.-P.); (P.S.G.); (G.C.L.); (D.W.P.J.)
- Department of Cellular and Molecular Biology, Biology Institute, Federal Fluminense University, Niterói 24220-900, RJ, Brazil
| | - Guilherme C. Lechuga
- Center of Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation on Neglected Diseases (INCT-IDN), FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (P.N.-P.); (P.S.G.); (G.C.L.); (D.W.P.J.)
| | - Arnaldo Mandonado
- Laboratory of Biology and Parasitology of Wild Mammals Reservoirs, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-360, RJ, Brazil;
| | - Carlos Graeff-Teixeira
- Infectious Diseases Unit, Department of Pathology, Federal University of Espirito Santo, Vitória 29075-910, ES, Brazil;
| | - David W. Provance
- Center of Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation on Neglected Diseases (INCT-IDN), FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (P.N.-P.); (P.S.G.); (G.C.L.); (D.W.P.J.)
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De-Simone SG, Provance DW. Lectin Affinity Chromatography: An Efficient Method to Purify Horse IgG3. Methods Mol Biol 2021; 2178:301-310. [PMID: 33128757 DOI: 10.1007/978-1-0716-0775-6_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Affinity chromatography is a separation method based on a specific binding interaction between an immobilized ligand and its binding partner. An important class of ligands for the effective separation and purification of biotechnologically important substances is lectins, a group of naturally occurring molecules widely found in plants that display a range of specificities to bind different sugars. As sugars are often added to proteins through the process of glycosylation, ∼1/3 of all genetically encoded proteins are glycosylated, numerous cognate pairs of lectins with glycosylation groups have been discovered. Their specific binding interactions have not only allowed the development of numerous methodological strategies involving immobilized lectins to isolate molecules of interests but also for understanding the intermolecular interactions and alterations in glycosylation during a diverse set of biological phenomena, including tumor cell metastasis, intracellular communication, and inflammation. In this chapter, we describe a basic procedure for the separation of horse antibody classes by affinity chromatography based on differences in their glycosylation patterns. This procedure has been utilized for the purification of horse IgG3 (hoIgG3) from other six Ig from equine sera in a single step by using an Artocarpus integrifolia Jacalin column. This class of antibody comprises the therapeutic fraction generated in equine for passive antibody therapy and can serve as a biomarker for patient hypersensitivity. During the course of developing the protocol, the affinity interaction constant between the huIgE-hypersensitive immunoglobulin and the purified hoIgG3 was also determined.
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Affiliation(s)
- Salvatore G De-Simone
- FIOCRUZ, Center for Technological Development in Health (CDTS)/National Institute of Science and Technology for Innovation on Neglected of Population Diseases (INCT-INDP), Rio de Janeiro, RJ, Brazil. .,FIOCRUZ, Oswaldo Cruz Institute, Laboratory of Experimental and Computational Biochemistry of Pharmaceuticals, Rio de Janeiro, RJ, Brazil. .,Department of Cellular and Molecular Biology, Biology Institute, Federal Fluminense University, Niterói, RJ, Brazil.
| | - David W Provance
- FIOCRUZ, Center for Technological Development in Health (CDTS)/National Institute of Science and Technology for Innovation on Neglected of Population Diseases (INCT-INDP), Rio de Janeiro, RJ, Brazil.,FIOCRUZ, Oswaldo Cruz Institute, Interdisciplinar Laboratory of Medical Research, Rio de Janeiro, RJ, Brazil
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Xu W, Wang D, Li D, Liu CC. Recent Developments of Electrochemical and Optical Biosensors for Antibody Detection. Int J Mol Sci 2019; 21:E134. [PMID: 31878197 PMCID: PMC6981776 DOI: 10.3390/ijms21010134] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/16/2019] [Accepted: 12/18/2019] [Indexed: 12/13/2022] Open
Abstract
Detection of biomarkers has raised much interest recently due to the need for disease diagnosis and personalized medicine in future point-of-care systems. Among various biomarkers, antibodies are an important type of detection target due to their potential for indicating disease progression stage and the efficiency of therapeutic antibody drug treatment. In this review, electrochemical and optical detection of antibodies are discussed. Specifically, creating a non-label and reagent-free sensing platform and construction of an anti-fouling electrochemical surface for electrochemical detection are suggested. For optical transduction, a rapid and programmable platform for antibody detection using a DNA-based beacon is suggested as well as the use of bioluminescence resonance energy transfer (BRET) switch for low cost antibody detection. These sensing strategies have demonstrated their potential for resolving current challenges in antibody detection such as high selectivity, low operation cost, simple detection procedures, rapid detection, and low-fouling detection. This review provides a general update for recent developments in antibody detection strategies and potential solutions for future clinical point-of-care systems.
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Affiliation(s)
- Wei Xu
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA;
| | - Daniel Wang
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH 44106, USA;
| | - Derek Li
- Solon High School, Solon, OH 44139, USA;
| | - Chung Chiun Liu
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH 44106, USA;
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Li J, Wang X, Shan Y, Huang H, Jian D, Xue L, Wang S, Liu F. Handheld Inkjet Printing Paper Chip Based Smart Tetracycline Detector. MICROMACHINES 2019; 10:E27. [PMID: 30609683 PMCID: PMC6356201 DOI: 10.3390/mi10010027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 12/20/2018] [Accepted: 12/27/2018] [Indexed: 12/12/2022]
Abstract
Tetracycline is widely used as medicine for disease treatments and additives in animal feeding. Unfortunately, the abuse of tetracycline inevitably causes tetracycline residue in animal-origin foods. Though classical methods can detect tetracycline in high sensitivity and precision, they often rely on huge and expensive setups as well as complicated and time-consuming operations, limiting their applications in rapid and on-site detection. Here, we propose a handheld inkjet printing paper chip based smart tetracycline detector: tetracycline can be determined by inkjet printing prepared paper chip based enzyme-linked immunosorbent assay (ELISA) with the advantages of high sensitivity, excellent specificity and low cost; moreover, a smartphone based paper chip reader and application is designed for automatically determining tetracycline with simple operations, high precision and fast speed. The smart tetracycline detector with a compact size of 154 mm × 80 mm × 50 mm and self-supplied internal power can reach a rather low detection limit of ~0.05 ng/mL, as proved by practical measurements. It is believed the proposed handheld inkjet printing paper chip based smart tetracycline detector is a potential tool in antibiotic sensing for routine uses at home and on-site detection in the field.
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Affiliation(s)
- Jiahao Li
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Xin Wang
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Yanke Shan
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Huachuan Huang
- School of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China.
| | - Dan Jian
- Computational Optics Laboratory, School of Science, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Liang Xue
- College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China.
| | - Shouyu Wang
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
- Computational Optics Laboratory, School of Science, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Fei Liu
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
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Purification of equine IgG3 by lectin affinity and an interaction analysis via microscale thermophoresis. Anal Biochem 2018; 561-562:27-31. [PMID: 30218639 DOI: 10.1016/j.ab.2018.09.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/22/2018] [Accepted: 09/11/2018] [Indexed: 12/18/2022]
Abstract
The availability of purified antibodies is a prerequisite for many applications and the appropriate choice(s) for antibody-purification is crucial. Numerous methods have been developed for the purification of antibodies from different sources with affinity chromatography-based methods being the most extensively utilized. These methods are based on high specificity, easy reversibility and biological interactions between two molecules (e.g., between receptor and ligand or antibody and antigen). However, no simple techniques have yet been described to characterize and purify subclasses of immunoglobulins (Ig) from some animals of biotechnology importance such as equines, which are frequently used to produce biotherapeutic antibodies. The sera of these animals present a large number of Ig classes that have a greater complexity than other animals. The implementation of an effective protocol to purify the desired antibody class/subclasses requires meticulous planning to achieve yields at a high purity. The IgG3 subclass of equine-Ig has recently been used as antigen in a new diagnostic test for allergic responses to horse sera-based therapies. Here, we defined a simple method using Jacalin lectin immobilized on Sepharose beads to prepare highly pure equine IgG3 antibodies with a determination of the affinity constants for Jacalin lectin and horse IgG3.
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Prado IC, Mendes VG, Souza AL, Dutra RF, De-Simone SG. Electrochemical immunosensor for differential diagnostic of Wuchereria bancrofti using a synthetic peptide. Biosens Bioelectron 2018; 113:9-15. [DOI: 10.1016/j.bios.2018.04.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 04/18/2018] [Indexed: 10/17/2022]
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Amani J, Maleki M, Khoshroo A, Sobhani-Nasab A, Rahimi-Nasrabadi M. An electrochemical immunosensor based on poly p-phenylenediamine and graphene nanocomposite for detection of neuron-specific enolase via electrochemically amplified detection. Anal Biochem 2018; 548:53-59. [DOI: 10.1016/j.ab.2018.02.024] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 02/21/2018] [Accepted: 02/23/2018] [Indexed: 12/11/2022]
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