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Deciphering transcriptomic changes in chemobrain: a comprehensive review
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DOI：10.1186/s40478-025-02102-z.png)
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Abstract
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Chemotherapy-induced cognitive impairments (CICI), colloquially known as “chemobrain,” represents a profound and debilitating side effect experienced by a significant number of cancer survivors, impacting their memory, multitasking, and quality of life. This review critically evaluates the molecular mechanisms underlying CICI, with a particular focus on the insights gained from transcriptomic analyses. As cancer incidence rises globally, understanding the complex interplay between chemotherapy agents and their cognitive repercussions becomes increasingly vital. Key mechanisms implicated in CICI include blood-brain barrier disruption, neuroinflammation, and oxidative stress as a result of various chemotherapy treatments, such as doxorubicin, cisplatin, and paclitaxel. We delve into advanced transcriptomic methodologies including RNA sequencing, cDNA microarrays, and single-cell transcriptomics that elucidate the alteration in gene expression profiles associated with CICI and provide a deeper understanding of the underlying pathophysiological processes. Furthermore, we emphasize the importance of developing comprehensive single-cell atlases and employing spatial transcriptomics to uncover cellular heterogeneity and the spatial dynamics of gene expression across different brain regions. This review consolidates the existing literature on the transcriptomic profile of CICI, highlighting potential genes and pathways while suggesting future research avenues aimed at mitigating cognitive dysfunction. Ultimately, integrating transcriptomic findings with clinical insights is essential for the development of targeted, personalized interventions, thereby improving cognitive health and overall quality of life for cancer survivors dealing with long-term impacts of their treatment.
Keywords:
chemotherapy-induced cognitive impairments
transcriptomic analysis
blood-brain barrier disruption
neuroinflammation
oxidative stress
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