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Updated: Oct 17, 2025
Analyzing the Permeability of the Blood-Brain Barrier by Microbial Traversal through Microvascular Endothelial Cells
Published on: February 14, 2020
Breaking down barriers: Tumors make a leaky brain
Billel Benmimoun1, Pauline Spéder1
1Brain plasticity in response to the environment, Institut Pasteur, UMR3738, CNRS, 75015 Paris, France.
Abstract:
The causes of death among cancer patients are multifactorial, and the mechanisms that drive pathological conditions that are associated with, but take place outside of, the tumor are still poorly characterized. In this issue of Developmental Cell, Kim et al. (2021) identify a paraneoplastic syndrome that affects blood-brain barrier permeability and host survival.
Insights
Researchers identified a paraneoplastic syndrome impacting blood-brain barrier permeability and survival in cancer patients. This discovery sheds light on poorly understood mechanisms driving cancer-related conditions outside the tumor itself.
Area of Science:
- Oncology
- Neuroscience
- Pathology
Background:
- Cancer patient mortality involves multifactorial causes.
- Mechanisms driving pathological conditions outside the tumor are poorly understood.
Purpose of the Study:
- To identify specific paraneoplastic syndromes affecting cancer patient outcomes.
- To investigate the impact of paraneoplastic syndromes on blood-brain barrier permeability.
Main Methods:
- Utilized data from Kim et al. (2021) in Developmental Cell.
- Analyzed mechanisms of paraneoplastic syndromes in cancer.
Main Results:
- Identified a novel paraneoplastic syndrome.
- Demonstrated the syndrome's effect on blood-brain barrier permeability.
- Linked the syndrome to host survival in cancer patients.
Conclusions:
- Paraneoplastic syndromes represent a significant, understudied aspect of cancer pathology.
- Understanding these syndromes is crucial for improving cancer patient survival and treatment.
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