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Ayón-Núñez DA, Cervantes-Torres J, Cabello-Gutiérrez C, Rosales-Mendoza S, Rios-Valencia D, Huerta L, Bobes RJ, Carrero JC, Segura-Velázquez R, Fierro NA, Hernández M, Zúñiga-Ramos J, Gamba G, Cárdenas G, Frías-Jiménez E, Herrera LA, Fragoso G, Sciutto E, Suárez-Güemes F, Laclette JP. An RBD-Based Diagnostic Method Useful for the Surveillance of Protective Immunity against SARS-CoV-2 in the Population. Diagnostics (Basel) 2022; 12:diagnostics12071629. [PMID: 35885534 PMCID: PMC9324632 DOI: 10.3390/diagnostics12071629] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/24/2022] [Accepted: 04/30/2022] [Indexed: 12/17/2022] Open
Abstract
After more than two years, the COVID-19 pandemic is still ongoing and evolving all over the world; human herd immunity against SARS-CoV-2 increases either by infection or by unprecedented mass vaccination. A substantial change in population immunity is expected to contribute to the control of transmission. It is essential to monitor the extension and duration of the population’s immunity to support the decisions of health authorities in each region and country, directed to chart the progressive return to normality. For this purpose, the availability of simple and cheap methods to monitor the levels of relevant antibodies in the population is a widespread necessity. Here, we describe the development of an RBD-based ELISA for the detection of specific antibodies in large numbers of samples. The recombinant expression of an RBD-poly-His fragment was carried out using either bacterial or eukaryotic cells in in vitro culture. After affinity chromatography purification, the performance of both recombinant products was compared by ELISA in similar trials. Our results showed that eukaryotic RBD increased the sensitivity of the assay. Interestingly, our results also support a correlation of the eukaryotic RBD-based ELISA with other assays aimed to test for neutralizing antibodies, which suggests that it provides an indication of protective immunity against SARS-CoV-2.
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Affiliation(s)
- Dolores Adriana Ayón-Núñez
- School of Veterinary Medicine and Zootechnics, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (D.A.A.-N.); (R.S.-V.)
| | - Jacquelynne Cervantes-Torres
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - Carlos Cabello-Gutiérrez
- Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, Belisario Domínguez Secc. 16, Tlalpan, Ciudad de México 14080, Mexico; (C.C.-G.); (J.Z.-R.)
| | - Sergio Rosales-Mendoza
- Laboratorio de Biofarmacéuticos Recombinantes, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6, San Luis Potosí 78210, Mexico;
| | - Diana Rios-Valencia
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - Leonor Huerta
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - Raúl J. Bobes
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - Julio César Carrero
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - René Segura-Velázquez
- School of Veterinary Medicine and Zootechnics, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (D.A.A.-N.); (R.S.-V.)
| | - Nora Alma Fierro
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - Marisela Hernández
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - Joaquín Zúñiga-Ramos
- Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, Belisario Domínguez Secc. 16, Tlalpan, Ciudad de México 14080, Mexico; (C.C.-G.); (J.Z.-R.)
| | - Gerardo Gamba
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15, Belisario Domínguez Secc. 16, Tlalpan, Ciudad de México 14080, Mexico
| | - Graciela Cárdenas
- Instituto Nacional de Neurología y Neurocirugía, Av. Insurgentes Sur 3877, Tlalpan, Ciudad de México 14269, Mexico;
| | - Emmanuel Frías-Jiménez
- Instituto Nacional de Medicina Genómica, Periférico Sur 4809, Ciudad de México 14610, Mexico; (E.F.-J.); (L.A.H.)
| | - Luis Alonso Herrera
- Instituto Nacional de Medicina Genómica, Periférico Sur 4809, Ciudad de México 14610, Mexico; (E.F.-J.); (L.A.H.)
| | - Gladis Fragoso
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - Edda Sciutto
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
| | - Francisco Suárez-Güemes
- School of Veterinary Medicine and Zootechnics, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (D.A.A.-N.); (R.S.-V.)
- Correspondence: (F.S.-G.); (J.P.L.); Tel.: +52(55)-5622-3153 (J.P.L.)
| | - Juan Pedro Laclette
- Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; (J.C.-T.); (D.R.-V.); (L.H.); (R.J.B.); (J.C.C.); (N.A.F.); (M.H.); (G.G.); (G.F.); (E.S.)
- Correspondence: (F.S.-G.); (J.P.L.); Tel.: +52(55)-5622-3153 (J.P.L.)
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