Proceedings of the National Academy of Sciences · 29 July 2026 · From issue 13

In mice, removing one gene switch in immune cells made them more vulnerable to a gut infection.

Naveen Kumar, Alvina Deka et al., RelB NF-κB tunes Notch2 signaling to promote IL-23-secreting solitary isolated lymphoid tissue-resident DCs critical for gut immunity, Proceedings of the National Academy of Sciences.

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Also in issue 13 15 papers

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A crop-eating mite uses 64 copies of one protein to block a plant's chemical defense.
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In a simulated universe, star forming galaxies drift inward, throwing off growth rate measurements.
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In lab tests, redesigned fungus-fighting drugs worked better and harmed cells less.
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One photo of a drop breaking apart can reveal a liquid's thickness and stickiness.
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A blood thinner helped more migraine patients with a heart hole than a standard migraine drug did.
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In lab tests, a silver catalyst turned nitrobenzene into a target chemical with 99.6% accuracy.
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Invasive species do more damage in poorer nations, not richer ones as long assumed.
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The grab point on human centromeres mutates far faster than the rest of the region, up to 20 times more.
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Most carbon from Canada's record 2023 wildfires rose from soil, not burning trees.
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One lab-made reactive fragment performed almost every classic carbon-building reaction under the same mild conditions.
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In a lab experiment, a moving focus point that beats normal light speed limits made controllable terahertz light bursts.
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In mice, a chemical tag on a kidney salt channel is required to stop the body losing too much salt.
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