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Perween R, PraveenKumar M, Shrivastava T, Parray HA, Singh V, Singh S, Chiranjivi A, Jakhar K, Sonar S, Tiwari M, Reema, Panchal AK, Sharma C, Rathore DK, Ahamed S, Samal S, Mani S, Bhattacharyya S, Das S, Luthra K, Kumar R. The SARS CoV-2 spike directed non-neutralizing polyclonal antibodies cross-react with Human immunodeficiency virus (HIV-1) gp41. Int Immunopharmacol 2021; 101:108187. [PMID: 34649114 PMCID: PMC8479463 DOI: 10.1016/j.intimp.2021.108187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/20/2021] [Accepted: 09/20/2021] [Indexed: 12/24/2022]
Abstract
Cross-reactivity among the two diverse viruses is believed to originate from the concept of antibodies recognizing similar epitopes on the two viral surfaces. Cross-reactive antibody responses have been seen in previous variants of SARS and SARS-CoV-2, but little is known about the cross reactivity with other similar RNA viruses like HIV-1. In the present study, we examined the reactivity the SARS-CoV-2 directed antibodies, via spike, immunized mice sera and demonstrated whether they conferred any cross-reactive neutralization against HIV-1. Our findings show that SARS-CoV-2 spike immunized mice antibodies cross-react with the HIV-1 Env protein. Cross-neutralization among the two viruses is uncommon, suggesting the presence of a non-neutralizing antibody response to conserved epitopes amongst the two viruses. Our results indicate, that SARS-CoV-2 spike antibody cross reactivity is targeted towards the gp41 region of the HIV-1 Env (gp160) protein. Overall, our investigation not only answers a crucial question about the understanding of cross-reactive epitopes of antibodies generated in different viral infections, but also provides critical evidence for developing vaccine immunogens and novel treatment strategies with enhanced efficacy capable of recognising diverse pathogens with similar antigenic features.
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Affiliation(s)
- Reshma Perween
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Murugavelu PraveenKumar
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Tripti Shrivastava
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Hilal Ahmed Parray
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Vanshika Singh
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Swarandeep Singh
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Adarsh Chiranjivi
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Kamini Jakhar
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Sudipta Sonar
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Mahima Tiwari
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Reema
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Anil Kumar Panchal
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Chandresh Sharma
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Deepak Kumar Rathore
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Shubbir Ahamed
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Sweety Samal
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Shailendra Mani
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Sankar Bhattacharyya
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Supratik Das
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Kalpana Luthra
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Rajesh Kumar
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India.
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