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Aoki MN, Marin AM, Zanette DL, Nardin JM, Munhoz EC, Blanes L, Boçon de Araújo Munhoz F, de Oliveira Coelho B. Fluorescent and colorimetric RT-LAMP as a rapid and specific qualitative method for chronic myeloid leukemia diagnosis. Anal Biochem 2021; 641:114541. [PMID: 34971572 DOI: 10.1016/j.ab.2021.114541] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 12/14/2022]
Abstract
The detection of BCR-ABL1 mRNA transcripts is essential to molecular chronic myeloid leukemia (CML) diagnosis. In most cases, the RT-qPCR technique is performed as the gold standard diagnosis tool for clinical cases. However, this method requires expensive reagents and equipment, such as a real-time thermal cycler, probes and master mix. Consequently, the development and validation of simple and low-cost methods are essential for a rapid CML diagnosis in less specialized and equipped centers. In this study, we develop and demonstrate an accessible, rapid, and low-cost method using RT-LAMP for BCR-ABL1 detection in both cell lines and CML clinical samples, using fluorescent and colorimetric assays. Both methods demonstrated diagnostic specificity of 100% and while diagnostic sensitivity reaches more than 90% in samples with RT-qPCR cycle threshold above 31. The obtained data indicates that the proposed method here described is a cheaper, robust and specific approach for CML diagnosis with outstanding performance, especially for CML diagnostic procedure where present high BCR-ABL1 expression.
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Affiliation(s)
- Mateus Nóbrega Aoki
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Prof Algacyr Munhoz Mader 3775 Street, Curitiba, Paraná, ZIP 81350-010, Brazil.
| | - Anelis Maria Marin
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Prof Algacyr Munhoz Mader 3775 Street, Curitiba, Paraná, ZIP 81350-010, Brazil
| | - Dalila Luciola Zanette
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Prof Algacyr Munhoz Mader 3775 Street, Curitiba, Paraná, ZIP 81350-010, Brazil
| | - Jeanine Marie Nardin
- Erasto Gaertner Hospital, Dr. Ovande do Amaral 201 Street, Curitiba, Paraná, ZIP 81520-060, Brazil
| | - Eduardo Cilião Munhoz
- Erasto Gaertner Hospital, Dr. Ovande do Amaral 201 Street, Curitiba, Paraná, ZIP 81520-060, Brazil
| | - Lucas Blanes
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Prof Algacyr Munhoz Mader 3775 Street, Curitiba, Paraná, ZIP 81350-010, Brazil
| | - Francielle Boçon de Araújo Munhoz
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Prof Algacyr Munhoz Mader 3775 Street, Curitiba, Paraná, ZIP 81350-010, Brazil
| | - Bruna de Oliveira Coelho
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Prof Algacyr Munhoz Mader 3775 Street, Curitiba, Paraná, ZIP 81350-010, Brazil
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Qian XF, Duan AL, Huang RX, Li NX, Li YP, Guo XG. Pooled analysis of LAMP assay for the diagnosis of norovirus infection. J Clin Lab Anal 2021; 35:e23919. [PMID: 34331319 PMCID: PMC8418469 DOI: 10.1002/jcla.23919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/19/2021] [Accepted: 07/07/2021] [Indexed: 12/15/2022] Open
Abstract
Background Rapid laboratory detection is essential to diagnose norovirus infection. LAMP has many advantages compared with RT‐PCR for detecting norovirus, including high sensitivity, high specificity, rapidity, low cost, and intuitive results, which can be easily read with the naked eye with the help of color‐based reporters. In this study, we intend to analyze the accuracy of LAMP methods for the diagnosis of norovirus infection. Methods Two researchers independently retrieved relevant literature up to January 2021 (PubMed, Web of Science, Cochrane Library, Embase, CNKI, Wan Fang, and VIP). The researchers screened all articles and extracted their research data for meta‐analysis. QUADAS‐2 tool was used to evaluate the quality of the included studies by Review Manager 5.3. Forest plots were performed by Meta‐DiSc 1.4 to evaluate the accuracy of the test. Deeks’ funnel plot symmetry tests were conducted by Stata 15.0 to check the potential publication bias. Results Eleven sets of data extracted from the eight included studies were included for meta‐analysis. For the detection of norovirus, the pooled sensitivity, specificity, positive LR, negative LR, diagnostic OR, and their 95% CI were 0.96 (0.95–0.97), 0.99 (0.99–1.00), 91.14 (31.88–260.56), 0.06 (0.04–0.09), and 1473.68 (562.96–3857.70), respectively. Besides, AUC in the SROC curve was 0.9920. Conclusion LAMP had high sensitivity and specificity in terms of the diagnosis of norovirus infection. However, further extension of this approach should be researched to ensure the accuracy and practicability of this hopeful test in the future.
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Affiliation(s)
- Xi-Feng Qian
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Sixth Clinical School of Guangzhou Medical University, Guangzhou, China
| | - Ai-Ling Duan
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Sixth Clinical School of Guangzhou Medical University, Guangzhou, China
| | - Rong-Xian Huang
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Sixth Clinical School of Guangzhou Medical University, Guangzhou, China
| | - Nan-Xi Li
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Mental Medicine, The Mental Health School of Guangzhou Medical University, Guangzhou, China
| | - Ya-Ping Li
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Second Clinical School of Guangzhou Medical University, Guangzhou, China
| | - Xu-Guang Guo
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Correction to: A pooled analysis of the LAMP assay for the detection of Neisseria meningitidis. BMC Infect Dis 2020; 20:560. [PMID: 32736603 PMCID: PMC7395387 DOI: 10.1186/s12879-020-05300-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via the original article.
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