Cationic Dendrimer G2-S16 Inhibits Herpes Simplex Type 2 Infection and Protects Mice Vaginal Microbiome

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Title: Cationic Dendrimer G2-S16 Inhibits Herpes Simplex Type 2 Infection and Protects Mice Vaginal Microbiome
Authors: Guerrero-Beltrán, Carlos | Garcia-Heredia, Inmaculada | Ceña-Diez, Rafael | Rodriguez-Izquierdo, Ignacio | Serramía, María Jesús | Martinez-Hernandez, Francisco | Lluesma Gómez, Mónica | Martinez-Garcia, Manuel | Muñoz-Fernández, María Ángeles
Research Group/s: Ecología Microbiana Molecular
Center, Department or Service: Universidad de Alicante. Departamento de Fisiología, Genética y Microbiología
Keywords: G2-S16 polyanionic carbosilane dendrimer | HSV-2 | Semen | Microbicide | Female mice | Vaginal microbiome | HCV
Knowledge Area: Microbiología
Issue Date: 4-Jun-2020
Publisher: MDPI
Citation: Guerrero-Beltrán C, Garcia-Heredia I, Ceña-Diez R, Rodriguez-Izquierdo I, Serramía MJ, Martinez-Hernandez F, Lluesma-Gomez M, Martinez-Garcia M, Muñoz-Fernández MÁ. Cationic Dendrimer G2-S16 Inhibits Herpes Simplex Type 2 Infection and Protects Mice Vaginal Microbiome. Pharmaceutics. 2020; 12(6):515. doi:10.3390/pharmaceutics12060515
Abstract: The G2-S16 polyanionic carbosilane dendrimer is a promising microbicide that inhibits HSV-2 infection in vitro and in vivo in mice models. This G2-S16 dendrimer inhibits HSV-2 infection even in the presence of semen. Murine models, such as BALB/c female mice, are generally used to characterize host-pathogen interactions within the vaginal tract. However, the composition of endogenous vaginal flora remains largely undefined with modern microbiome analyses. It is important to note that the G2-S16 dendrimer does not change healthy mouse vaginal microbiome where Pseudomonas (10.2–79.1%) and Janthinobacterium (0.7–13%) are the more abundant genera. The HSV-2 vaginally infected female mice showed a significant microbiome alteration because an increase of Staphylococcus (up to 98.8%) and Escherichia (30.76%) levels were observed becoming these bacteria the predominant genera. BALB/c female mice vaginally-treated with the G2-S16 dendrimer and infected with the HSV-2 maintained a healthy vaginal microbiome similar to uninfected female mice. Summarizing, the G2-S16 polyanionic carbosilane dendrimer inhibits the HSV-2 infection in the presence of semen and prevents the alteration of mice female vaginal microbiome.
Sponsor: This work has been (partially) funded by the RD16/0025/0019, projects as part of Acción Estratégica en Salud, Plan Nacional de Investigación Científica, Desarrollo e Innovación Tecnológica (2013–2016) and cofinanced by Instituto de Salud Carlos III (ISCIII‐Subdirección General de Evaluación) and Fondo Europeo de Desarrollo Regional (FEDER), RETIC PT17/0015/0042, Fondo de Investigación Sanitaria (FIS) (PI16/01863, PI19/01638) and EPIICAL Project. CIBER‐BBN is an initiative funded by the VI National R&D&i Plan 2008–2011, Iniciativa Ingenio 2010, the Consolider Program, and CIBER Actions and financed by ISCIII with assistance from the European Regional Development Fund. This work has been supported partially by a EUROPARTNER: Strengthening and spreading international partnership activities of the Faculty of Biology and Environmental Protection for interdisciplinary research and innovation of the University of Lodz Programme: NAWA International Academic Partnership Programme. This article/publication is based upon work from COST Action CA 17140 “Cancer Nanomedicine from the Bench to the Bedside” supported by COST (European Cooperation in Science and Technology). This work has been also supported by Ministry of Economy and Competitiveness CGL2013‐40564‐R and Gordon and Betty Moore Foundation grant num. 5334.
ISSN: 1999-4923
DOI: 10.3390/pharmaceutics12060515
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
Peer Review: si
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