4.7 Review

Advances in Rodent Experimental Models of Sepsis

Journal

Publisher

MDPI
DOI: 10.3390/ijms24119578

Keywords

sepsis; shock; cecal ligation and puncture; humanized mice; dirty mice; animal models

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Preclinical experimental models play a key role in the development of therapeutic strategies for human diseases. However, immunomodulatory therapies developed using rodent sepsis have not been successful in human clinical trials. This review highlights the importance of understanding the characteristics of host species, methods used to induce sepsis, and molecular processes in the development of successful treatment methods for human sepsis.
In the development of therapeutic strategies for human diseases, preclinical experimental models have a key role. However, the preclinical immunomodulatory therapies developed using rodent sepsis were not successful in human clinical trials. Sepsis is characterized by a dysregulated inflammation and redox imbalance triggered by infection. Human sepsis is simulated in experimental models using methods that trigger inflammation or infection in the host animals, most often mice or rats. It remains unknown whether the characteristics of the host species, the methods used to induce sepsis, or the molecular processes focused upon need to be revisited in the development of treatment methods that will succeed in human clinical trials. Our goal in this review is to provide a survey of existing experimental models of sepsis, including the use of humanized mice and dirty mice, and to show how these models reflect the clinical course of sepsis. We will discuss the strengths and limitations of these models and present recent advances in this subject area. We maintain that rodent models continue to have an irreplaceable role in studies toward discovering treatment methods for human sepsis.

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