Neonatal candidiasis poses significant clinical challenges due to its potential for severe morbidity and mortality in vulnerable infants. Due to their underdeveloped immune system, neonates are at a higher risk for infections caused by Candida species. They can vary from mild to severe, including penetrating deep tissues, bloodstream spread, and dissemination to organs. The immune system of newborns is marked by a limited innate immune response, with lower levels of pro-inflammatory cytokines. Adaptive immunity, important for lasting protection, also experiences delayed maturation with weakened Th1 and Th17 responses. These shortcomings result in a higher vulnerability to Candida infections during infancy. Murine models have been crucial in understanding the reasons behind this susceptibility. These models assist in examining how different immune elements, like neutrophils, macrophages, and T cells, and their interactions are involved in Candida infections. Moreover, they offer an understanding of how early-life exposure to Candida affects immune responses and may aid in developing possible therapeutic plans. In this article we review current results from research to provide a thorough summary and critical insights into neonatal immune response to Candida, highlighting the importance of using murine models in this field of study. Understanding these immune dynamics is essential for creating specific treatments and preventive strategies to prevent newborns from Candida infections, ultimately improving neonatal health outcomes.
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| http://dx.doi.org/10.1615/CritRevImmunol.2024055053 | DOI Listing |
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