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Sámano-Hernández L, Y G, González-Márquez H, Corazón-Martínez L, Lucio VM BD. Human papilloma virus presence and its physical status in primary pterygium. Heliyon 2023; 9:e16189. [PMID: 37234612 PMCID: PMC10208819 DOI: 10.1016/j.heliyon.2023.e16189] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/25/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Pterygium is one of the most frequent pathologies in ophthalmology, and is a benign, overgrowth of fibrovascular tissue, often with a wing-like appearance, from the conjunctiva over the cornea. It is composed of an epithelium and highly vascular, sub-epithelial, loose connective tissue. There is much debate surround the pathogenesis of pterygium and a number of theories have been put forward including genetic instability, cellular proliferation, inflammatory influence, and degeneration of connective tissue, angiogenesis, aberrant apoptosis and viral infection. At present, the involvement of human papillomavirus (HPV) in the genesis of pterygium is controversial, as have reported that HPV is present in 58% of cases, while others have failed to detect HPV in pterygium. In this study, we evaluated the presence and viral genotype of HPV DNA in pterygia and healthy conjunctiva sample, and virus integration into the cellular genome. Forty primary pterygia samples and 12 healthy conjunctiva samples were analyzed to HPV DNA presence by polymerase chain reaction, using MY09/MY11 primers of HPV-L1 gene. Viral genotype was identified by DNA sequence analysis of this amplicon. HPV integration into the cellular genome was analyzed by western blot detecting HPV-L1 capsid protein. Presence of HPV was observed in 19 of the 40 pterygia samples. In contrast, healthy conjunctiva samples were negative. To determine virus type, sequence analyses were performed. Interestingly, 11 out of the 19-pterygium samples were identified as HPV-11 type, meanwhile, the remaining 8 pterygium samples were identified as HPV-18. HPV-L1 capsid protein were found only in 3 out of the 10 samples studied. In conclusion, our study identified the presence of HPV DNA exclusively in pterygium samples and described HPV-11 and -18 genotypes. Our results suggest that HPV may be involved in the pathogenesis of pterygium. On the other hand, the expression of the L1-HPV protein suggests viral integration into the cellular genome.
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Affiliation(s)
- Leslye Sámano-Hernández
- Microbiology and Ocular Proteomics, Research Unit, Institute of Ophthalmology Fundación de Asistencia Privada Conde de Valenciana, Chimalpopoca, 14 Colonia Obrera, 06800, México City, Mexico
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Mexico City, Mexico
| | - Garfias Y
- Cellular Biology, Research Unit, Institute of Ophthalmology Fundación de Asistencia Privada Conde de Valenciana, Chimalpopoca, 14 Colonia Obrera, 06800, México City, Mexico
- Department of Biochemistry, Faculty of Medicine, UNAM, Insurgentes Sur 3000, Coyoacán, 04510, Mexico City, Mexico
| | - Humberto González-Márquez
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Mexico City, Mexico
| | - L.A. Corazón-Martínez
- Microbiology and Ocular Proteomics, Research Unit, Institute of Ophthalmology Fundación de Asistencia Privada Conde de Valenciana, Chimalpopoca, 14 Colonia Obrera, 06800, México City, Mexico
| | - Bautista-de Lucio VM
- Microbiology and Ocular Proteomics, Research Unit, Institute of Ophthalmology Fundación de Asistencia Privada Conde de Valenciana, Chimalpopoca, 14 Colonia Obrera, 06800, México City, Mexico
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Kelishadi M, Kelishadi M, Tabarraei A. Letter to the Editor: Coinfection of Adenovirus with the Members of Herpesviridae in Ophthalmic Pterygium. Open Microbiol J 2016; 10:209-210. [PMID: 28217193 PMCID: PMC5278547 DOI: 10.2174/1874285801610010209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 10/31/2016] [Accepted: 10/31/2016] [Indexed: 11/25/2022] Open
Affiliation(s)
- Mishar Kelishadi
- Laboratory Sciences Research Center, Department of Microbiology, Golestan University of Medical Science, Gorgan, Iran; Department of Virology, Pasteur Institute of Iran, Tehran, Iran
| | | | - Alijan Tabarraei
- Infectious Diseases Research Center, Department of Microbiology, Golestan University of Medical Sciences, Gorgan, Iran
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