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Xiao Z, Liu X, Kang X, Feng Y, Zheng L, Chen C. Rapid and accurate detection of SARS-CoV-2 using the RHAM technology. Sci Rep 2023; 13:22798. [PMID: 38129524 PMCID: PMC10739982 DOI: 10.1038/s41598-023-49733-7] [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: 06/26/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023] Open
Abstract
Rapid and sensitive detection of pathogens is of utmost importance in interrupting the transmission chain of infectious diseases. In recent years, this has proven to be vital during the coronavirus disease (COVID-19) global pandemic that put countless lives at risk. Numerous molecular diagnostic methods were used, including RT-PCR, NASBA, E-SDA, E-RCA, LAMP, and RPA. However, these technologies potentially require primer optimization and complex instruments. Here, we propose the RHAM (RNase Hybridization-Assisted amplification) system as a rapid, specific, and sensitive molecular diagnosis platform. Combining the LAMP and RNase HII-mediated fluorescent reporter, the RHAM system can amplify and visualize the target in one isothermal system with high sensitivity (5 × 102 copies/mL). There was no cross-reactivity with other common respiratory viruses. Analysis of clinical samples revealed the RHAM system to generate positive signals within 15 min without false positive or negative results. The present study shows that RHAM is not only an ideal platform for detecting pathogens, such as SARS-CoV-2 but can be potentially applied in POCT settings.
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Affiliation(s)
- Zhuo Xiao
- Guangzhou Pluslife Biotech Co., Ltd., No. 6 Lianhuayan Road, Huangpu District, Guangzhou, 510700, Guangdong, China
| | - Xiaoli Liu
- Guangzhou Pluslife Biotech Co., Ltd., No. 6 Lianhuayan Road, Huangpu District, Guangzhou, 510700, Guangdong, China
| | - Xiaolong Kang
- Guangzhou Pluslife Biotech Co., Ltd., No. 6 Lianhuayan Road, Huangpu District, Guangzhou, 510700, Guangdong, China
| | - Yaoheng Feng
- Guangzhou Pluslife Biotech Co., Ltd., No. 6 Lianhuayan Road, Huangpu District, Guangzhou, 510700, Guangdong, China
| | - Lijun Zheng
- Guangzhou Pluslife Biotech Co., Ltd., No. 6 Lianhuayan Road, Huangpu District, Guangzhou, 510700, Guangdong, China
| | - Chong Chen
- Guangzhou Pluslife Biotech Co., Ltd., No. 6 Lianhuayan Road, Huangpu District, Guangzhou, 510700, Guangdong, China.
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