Cited by 7Cancer-related cognitive impairment studiesTryptophan and brain disordersIntensive Care Unit Cognitive Disorders

Cytokines and Brain-Derived Neurotrophic Factor as Biomarkers of Cognitive Impairment Related to Breast Cancer and Its Treatments: A Systematic Review

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Fierro-Salgado, Yenny Trinidad, Reiriz, Manuel, Beltrán-Velasco, Ana Isabel, Calleja-Conde, Javier, Hernández-Oñativia, Xabier, Uceda, Sara, Echeverry-Alzate, Víctor·2025·International Journal of Molecular Sciences

Abstract

Breast cancer is a globally prevalent oncological disease whose treatments, while improving survival rates, often lead to adverse cognitive effects. Brain-derived neurotrophic factor (BDNF) and cytokines, key mediators of the inflammatory response, may play a significant role in these cognitive alterations. This systematic review (osf.io/vk37x) addresses the use of BDNF and cytokines as biomarkers of cognitive impairment in breast cancer animal models. A comprehensive literature search was conducted across the following databases: Web of Science, Scopus, ScienceDirect, PubMed, and Medline. Keywords used were: (“breast cancer” AND “cognitive impairment” AND (“brain derived neurotrophic factor” OR “cytokines”). A total of 9876 articles were identified, of which 17 studies met the inclusion criteria. For quality assessment the SYRCLE’s tool for assessing Risk of Bias was used. Neuroinflammatory and systemic inflammatory responses, particularly increases in pro-inflammatory cytokines (IL-6, IL-1β, TNF-α) and reductions in hippocampal BDNF, are consistently linked to breast cancer and chemotherapy-induced cognitive impairment in animal models. Several interventions normalized these biomarkers and improved cognitive performance after chemotherapy. Anti-inflammatory cytokines (IL-10 or IL-4) were measured in fewer studies and recent research suggests that they could serve as potential protective biomarkers. BDNF, pro- and anti-inflammatory cytokines may represent candidate biomarkers for cancer-related cognitive impairment.

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Authors
Fierro-Salgado, Y. T., Reiriz, M., Beltrán-Velasco, A. I., Calleja-Conde, J., Hernández-Oñativia, X., Uceda, S., & Echeverry-Alzate, V.
Affiliations
  • Universidad Nebrija (ES)
  • NBC Group, School of Life and Nature Sciences, Nebrija University, 28240 Madrid, Spain
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2025-10-16
Volume
26
Issue
20
Pages
10074
ISSN
1422-0067 (ISSN-L)
OpenAlex
W4415244919
Cited by
7
References
4
Citations by year
2026: 7
FWCI
1.21
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cancer-related cognitive impairment studies
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Intensive Care Unit Cognitive Disorders
Keywords
breast cancer, chemotherapy-induced cognitive impairment, brain-derived neurotrophic factor, cytokines, neuroinflammation, systemic inflammation, hippocampus, biomarkers, interleukin-6, IL-1β, TNF-α, IL-10, IL-4, animal models
MeSH terms
Animals, Breast Neoplasms, Female, Humans, Biomarkers, Cytokines, Brain-Derived Neurotrophic Factor, Cognitive Dysfunction

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