Pharmacokinetics and tissue diffusion of ganciclovir in mice and rats

Imène Boujemla, May Fakhoury, Michel Nassar, Homa Adle-Biassette, Marie Françoise Hurteaud, Evelyne Jacqz-Aigrain, Pierre Gressens, Natacha Teissier

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Abstract

Background Congenital cytomegalovirus (CMV) infection is the leading infectious cause of birth defects, mental retardation and non-genetic sensorineural hearing loss. Murine models have been developed in order to understand the pathophysiological mechanisms underlying these lesions. These models are being proposed for the validation of therapeutic protocols for clinical use. The aim of this preclinical study was to assess the pharmacokinetics of the reference antiviral molecule, ganciclovir, in order to optimize these protocols and confirm the diffusion of the molecule to the appropriate target zones. Methods Transplacental and intracochlear diffusion of ganciclovir was evaluated in mice and rats. Pharmacokinetics was assessed in adult mice and pups after 5 consecutive days of intraperitoneal injection of ganciclovir. The occurrence of hematological side effects of ganciclovir was evaluated in the different blood cell lineages. Results In adult rats, the intracochlear diffusion of ganciclovir was shown to achieve the same concentration as in blood. In gestating mice, transplacental diffusion was observed, with a fetal-to-maternal blood ratio of 0.5. In newborn mice, the plasma concentration profile of ganciclovir showed a peak at 2 h followed by a gradual decrease. In adult mice, the concentration peaked at 1 h, but became undetectable by 2 h after injection. Counts of white blood cells, red blood cells and platelets decreased significantly in ganciclovir-treated newborn mice. Conclusion Our data provide evidence for the intracochlear diffusion of the molecule, which may be relevant for the treatment of sensorineural hearing loss in congenitally-infected children.

Original languageEnglish (US)
Pages (from-to)111-115
Number of pages5
JournalAntiviral Research
Volume132
DOIs
StatePublished - Aug 1 2016

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ASJC Scopus subject areas

  • Pharmacology
  • Virology

Cite this

Boujemla, I., Fakhoury, M., Nassar, M., Adle-Biassette, H., Hurteaud, M. F., Jacqz-Aigrain, E., Gressens, P., & Teissier, N. (2016). Pharmacokinetics and tissue diffusion of ganciclovir in mice and rats. Antiviral Research, 132, 111-115. https://doi.org/10.1016/j.antiviral.2016.05.019