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Blood-brain barrier

A bacterial cell (elongated shape in the center) inside a glioblastoma tumor cell, as seen through an electron microscope. The black dots within the bacterium are engineered antibodies carrying gold particles that bind specifically to a component found only in bacterial cell envelopes and not in human cells
Bacteria on the Brain
14.11.2025
Brain & Behavior, Cancer, Viruses & Microorganisms, Molecular and Cell Biology, Disease, Drugs & Diagnostics

Weizmann researchers, together with Beilinson and Rambam physicians, reveal that diverse bacteria reside within brain tumors, potentially...

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Finding Immune Cells under Our Very Noses
31.07.2024
Brain & Behavior, Viruses & Microorganisms, Immunology, Disease, Drugs & Diagnostics

Antibody-producing cells discovered inside the nasal conchae may help develop new nasal vaccinations and treatments for allergies and...

Settled at Birth: Blood Vessels Remember Their Origins
Settled at Birth: Blood Vessels Remember Their Origins
25.05.2022
Stem Cells, Systems Biology, Molecular and Cell Biology, Evolution and Development

Blood vessels originating from lymphatic vessels were found to be tailored to specific functions

pituitary
Where the Blood-Brain Barrier Breaks Down
07.01.2019
Biochemistry, Brain & Behavior, Systems Biology

The cells that keep blood vessels in the pituitary permeable to hormones may hold the key to future drug delivery

Immunofluorescence microscope image of the choroid plexus. Epithelial cells are in green and chemokine proteins (CXCL10) are in red
Scientists Identify the Signature of Aging in the Brain
29.09.2014
Brain & Behavior, Molecular and Cell Biology, Immunology

Weizmann Institute researchers suggest that the brain's “immunological age” is what counts...

Immunostaining of brain section in which the epithelial choroid plexus expresses TGF-β (green), hanging in the brain ventricle, the keyhole-like structure delineated by the ependymal lining (red). In the box, monocytes (green) entering via the choroidal vasculature. The composition reflects the immune-educative nature of the choroid plexus as a gatekeeper of the route to the injured parenchyma
Gateway to the Brain
08.04.2013
Brain & Behavior, Immunology

Shifts in our immune system as we age might explain how older brains get “rusty”

Bringing Down Barriers
Bringing Down Barriers
14.02.2013
Biochemistry, Disease, Drugs & Diagnostics, Organic Chemistry

An unusual protein sequence may help drugs cross the brain-blood barrier

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Between Flood and Drought: The Metric That Could Better Explain What Happens to Water in the Age of Climate Change

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Gut Microbes Actively Support Immunity in People Living with HIV

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From Cancer to Alzheimer’s: Engineered Immune Cells Reduce Plaques in the Brain

Prof. Igal Talmi, 1925–2026

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12.02.2026
Gut Microbes Actively Support Immunity in People Living with HIV
04.02.2026
Prof. Igal Talmi, 1925–2026
02.02.2026
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Computers can solve complex problems but they are far from omnipotent. Prof. Ran Raz of the Weizmann Institute's Computer Science and Applied Mathematics Department is trying to portray the limits...

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