Exploring FeLV-Gag-Based VLPs as a New Vaccine Platform-Analysis of Production and Immunogenicity
Ortiz, Raquel (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Barajas Vélez, Ana (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Pons-Grífols, Anna (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Trinité, Benjamin (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Tarrés-Freixas, Ferran (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Rovirosa, Carla (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Urrea, Víctor (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Barreiro, Antonio (HIPRA)
Gonzalez-Tendero, Anna (HIPRA)
Cardona, Maria (HIPRA)
Ferrer, Laura (HIPRA)
Clotet Sala, Bonaventura (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Carrillo, Jorge (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Aguilar-Gurrieri, Carmen (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Blanco, Julià (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
Universitat Autònoma de Barcelona

Date:	2023
Abstract:	Feline leukemia virus (FeLV) is one of the most prevalent infectious diseases in domestic cats. Although different commercial vaccines are available, none of them provides full protection. Thus, efforts to design a more efficient vaccine are needed. Our group has successfully engineered HIV-1 Gag-based VLPs that induce a potent and functional immune response against the HIV-1 transmembrane protein gp41. Here, we propose to use this concept to generate FeLV-Gag-based VLPs as a novel vaccine strategy against this retrovirus. By analogy to our HIV-1 platform, a fragment of the FeLV transmembrane p15E protein was exposed on FeLV-Gag-based VLPs. After optimization of Gag sequences, the immunogenicity of the selected candidates was evaluated in C57BL/6 and BALB/c mice, showing strong cellular and humoral responses to Gag but failing to generate anti-p15E antibodies. Altogether, this study not only tests the versatility of the enveloped VLP-based vaccine platform but also sheds light on FeLV vaccine research.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	FeLV vaccination ; Glycogag ; Humoral immunity ; Veterinary science ; Virus-like particle
Published in:	International journal of molecular sciences, Vol. 24 (may 2023) , ISSN 1422-0067

DOI: 10.3390/ijms24109025
PMID: 37240371

22 p, 3.7 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Institut d'Investigació en Ciencies de la Salut Germans Trias i Pujol (IGTP)
Articles > Research articles
Articles > Published articles