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Dahiya B, Prasad T, Rais A, Sheoran A, Kamra E, Mor P, Soni A, Sharma S, Mehta PK. Quantification of mycobacterial proteins in extrapulmonary tuberculosis cases by nano-based real-time immuno-PCR. Future Microbiol 2023; 18:771-783. [PMID: 37540117 DOI: 10.2217/fmb-2023-0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023] Open
Abstract
Aim: Diagnosis of extrapulmonary tuberculosis (EPTB) is difficult, and a rapid and dependable diagnostic test is urgently needed. Methods: A nano-based assay, SYBR Green magnetic bead-coupled gold nanoparticle-based real-time immuno-polymerase chain reaction (MB-AuNP-RT-I-PCR) was studied for the quantitative detection of Mycobacterium tuberculosis MPT-64+CFP-10 proteins in clinically suspected EPTB patients. Results: A wide range (270 fg/ml-9.9 ng/ml) of MPT-64+CFP-10 was quantified by MB-AuNP-RT-I-PCR in EPTB cases, whereas magneto-ELISA demonstrated a narrow range (1.8-10 ng/ml). Furthermore, high sensitivity (88.2%) and specificity (100%) were attained by MB-AuNP-RT-I-PCR in EPTB (n = 51) and non-TB control (n = 49) subjects, respectively. Both MB-AuNP-I-PCR/magneto-ELISA exhibited significantly lower (p < 0.05-0.01) sensitivities than MB-AuNP-RT-I-PCR. Conclusion: The MB-AuNP-RT-I-PCR described herein shows good diagnostic accuracy, which may translate into a credible diagnostic kit.
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Affiliation(s)
- Bhawna Dahiya
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Tulika Prasad
- Special Centre for Nano Science & Advanced Instrumentation Research Facility, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Anam Rais
- Special Centre for Nano Science & Advanced Instrumentation Research Facility, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Abhishek Sheoran
- Department of Statistics, Ramanujan College, University of Delhi, New Delhi, 110019, India
| | - Ekta Kamra
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Preeti Mor
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Aishwarya Soni
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Suman Sharma
- Department of Pathology, University of Health Sciences, Rohtak, 124001, Haryana, India
| | - Promod K Mehta
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
- Present address: Microbiology Department, Faculty of Allied Health Sciences, Shree Guru Gobind Singh Tricentenary University, Gurugram, 122505, Haryana, India
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Kamra E, Prasad T, Rais A, Dahiya B, Sheoran A, Soni A, Sharma S, Mehta PK. Diagnosis of genitourinary tuberculosis: detection of mycobacterial lipoarabinomannan and MPT-64 biomarkers within urine extracellular vesicles by nano-based immuno-PCR assay. Sci Rep 2023; 13:11560. [PMID: 37463964 DOI: 10.1038/s41598-023-38740-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/13/2023] [Indexed: 07/20/2023] Open
Abstract
We detected a cocktail of Mycobacterium tuberculosis lipoarabinomannan (LAM) and MPT-64 biomarkers within urine extracellular vesicles (EVs) of genitourinary TB (GUTB) patients by nano-based immuno-PCR (I-PCR) assay, i.e., magnetic bead-coupled gold nanoparticle-based I-PCR (MB-AuNP-I-PCR) and compared the results with I-PCR and Magneto-ELISA. The size (s) of urine EVs ranged between 52.6 and 220.4 nm as analyzed by transmission electron microscopy (TEM) and nanoparticle tracking analysis. Functionalized AuNPs (coupled with detection antibodies/oligonucleotides) were characterized by UV-vis spectroscopy, TEM, ELISA, PCR, Atomic Force Microscopy and Fourier Transform Infrared spectroscopy, while conjugation of capture antibodies with MBs was validated by UV-vis spectroscopy and Magneto-ELISA. Our MB-AuNP-I-PCR exhibited sensitivities of 85% and 87.2% in clinically suspected (n = 40) and total (n = 47) GUTB cases, respectively, with 97.1% specificity in non-TB controls (n = 35). These results were further authenticated by the quantitative SYBR Green MB-AuNP-real-time I-PCR (MB-AuNP-RT-I-PCR). Concurrently, I-PCR and Magneto-ELISA showed sensitivities of 68.1% and 61.7%, respectively in total GUTB cases, which were significantly lower (p < 0.05-0.01) than MB-AuNP-I-PCR. Markedly, a wide range (400 fg/mL-11 ng/mL) of LAM+MPT-64 was quantified within urine EVs of GUTB cases by SYBR Green MB-AuNP-RT-I-PCR, which can assess the disease dynamics. This study will certainly improve the current algorithms used in GUTB diagnostics.
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Affiliation(s)
- Ekta Kamra
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, India
| | - Tulika Prasad
- Special Centre for Nano Science and Advanced Instrumentation Research Facility, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Anam Rais
- Special Centre for Nano Science and Advanced Instrumentation Research Facility, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Bhawna Dahiya
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, India
| | - Abhishek Sheoran
- Department of Statistics, Ramanujan College, University of Delhi, New Delhi, 110019, India
| | - Aishwarya Soni
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, India
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Sonipat, 131039, India
| | - Suman Sharma
- Department of Microbiology, University of Health Sciences (UHS), Rohtak, 124001, India
| | - Promod K Mehta
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, India.
- Department of Microbiology, Faculty of Allied Health Sciences, SGT University, Gurgaon, 122505, India.
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Soni A, Dahiya B, Sheoran A, Kumar V, Guliani A, Kumar N, Hooda V, Yadav A, Nehra K, Mehta PK. Diagnosis of pleural tuberculosis by multi-targeted loop-mediated isothermal amplification assay based on SYBR Green I reaction: comparison with GeneXpert® MTB/RIF assay. Expert Rev Respir Med 2023; 17:1079-1089. [PMID: 38058175 DOI: 10.1080/17476348.2023.2292738] [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: 09/23/2023] [Accepted: 12/05/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Diagnosis of pleural tuberculosis (TB) is tedious owing to its close resemblance with malignant pleural effusion and sparse bacterial load in clinical specimens. There is an immediate need to design a rapid and dependable diagnostic test to prevent unnecessary morbidity/mortality. RESEARCH DESIGN AND METHODS A multi-targeted loop-mediated isothermal amplification (MT-LAMP) was deliberated using mpt64 and IS6110 to diagnose pleural TB within pleural fluids/biopsies. MT-LAMP products were analyzed by gel-based and visual detection methods, viz. SYBR Green I, SYBR Green I+deoxyuridine triphosphate uracil-N-glycosylase (dUTP-UNG), and dry methyl green reactions. RESULTS In a pilot study, while assessing pleural TB/non-TB control subjects (n = 40), both SYBR Green I+dUTP-UNG/gel-based MT-LAMP assays exhibited better sensitivity/specificity than SYBR Green I and dry methyl green MT-LAMP. Since it is facile to work with SYBR Green I+dUTP-UNG than gel-based MT-LAMP, we validated the performance of SYBR Green I+dUTP-UNG in a higher number of specimens (n = 97), which revealed somewhat higher sensitivity (85.2 vs. 81.5%) and specificity (97.7 vs. 90.7%) than SYBR Green I MT-LAMP. Furthermore, the sensitivity attained by SYBR Green I+dUTP-UNG MT-LAMP was significantly higher (p < 0.001) than GeneXpert. CONCLUSIONS Our SYBR Green I+dUTP-UNG MT-LAMP is a simple and reliable method to diagnose pleural TB, which may translate into a point-of-care test.
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Affiliation(s)
- Aishwarya Soni
- Centre for Biotechnology, Maharshi Dayanand University (MDU), Rohtak, India
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology (DCRUST), Murthal, Sonipat, India
| | - Bhawna Dahiya
- Centre for Biotechnology, Maharshi Dayanand University (MDU), Rohtak, India
- Microbiology Department, Faculty of Allied Health Sciences, Shree Guru Gobind Singh Tricentenary (SGT) University, Gurugram, India
| | - Abhishek Sheoran
- Department of Statistics, Ramanujan College, University of Delhi, New Delhi, India
| | - Vipul Kumar
- Department of TB & Respiratory Medicine, University of Health Sciences (UHS), Rohtak, India
| | - Astha Guliani
- Department of TB & Respiratory Medicine, University of Health Sciences (UHS), Rohtak, India
| | - Nitin Kumar
- Centre for Medical Biotechnology, MDU, Rohtak, India
| | - Vikas Hooda
- Centre for Biotechnology, Maharshi Dayanand University (MDU), Rohtak, India
| | | | - Kiran Nehra
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology (DCRUST), Murthal, Sonipat, India
| | - Promod K Mehta
- Centre for Biotechnology, Maharshi Dayanand University (MDU), Rohtak, India
- Microbiology Department, Faculty of Allied Health Sciences, Shree Guru Gobind Singh Tricentenary (SGT) University, Gurugram, India
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