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Semaglutide and teduglutide reduce immune-driven gut injury in mice

Researchers found that gut-derived GLP-1 and GLP-2 signaling helped protect mice against T cell-induced intestinal injury, with GLP-1R primarily regulating inflammation and GLP-2R supporting intestinal repair. Semaglutide and teduglutide, administered separately or together, reduced acute intestinal damage in mice lacking intestinal proglucagon, suggesting potential avenues for investigating treatments for immune-mediated gut injury.

21 Oct 2026

Understanding how neutrophil signaling pathways disrupt the human intestinal barrier

The intestinal mucosal barrier separates the host from the gut lumen and is essential for systemic homeostasis.

14 Oct 2026

Nasal immune adjuvant protects mice against respiratory viruses for months

The COVID-19 pandemic showed the challenges of protecting populations when a new respiratory virus emerges.

9 Oct 2026

New study reveals how VEGF-C amplifies lymphangiogenic signaling

Lymphatic vessels act as the body's "drainage system," collecting excess fluid from tissues. When lymphatic drainage is impaired because lymphatic vessels are underdeveloped, damaged, or dysfunctional, lymphedema can develop, causing swelling, particularly in the arms and legs.

1 Oct 2026

Spatial mapping reveals macrophage niches linked to severe COVID-19 lung injury

Researchers at the University of Liège have used imaging-based spatial single-cell transcriptomics to map the cellular organization of lungs from people who died with severe COVID-19.

1 Oct 2026

Simulations reveal how changing enzyme shapes affect molecular recognition

Enzymes are often described as molecular machines that recognize and process specific molecules. However, they are not rigid structures. Their shapes can change, and these changes can affect how molecules enter, interact with, and remain within their active sites.

29 Sep 2026

Advances in chemistry and delivery are taking oligonucleotide medicines beyond rare diseases

A review in Cell Reports Medicine examines how advances in oligonucleotide chemistry and delivery have established ASOs and RNA interference therapies as a class of genetic medicines, with 21 oligonucleotides approved at the time of writing. It also identifies extrahepatic delivery, safety, target validation, individualized treatment, and data quality as priorities as the field expands into common diseases and explores AI-assisted development.

24 Sep 2026

New AI tool predicts hydrogen positions to speed up drug discovery

New York University researchers have trained an AI model to learn chemical patterns associated with stability in drug-like molecules and accurately predict where their hydrogen atoms should be positioned.

23 Sep 2026

Regular exercisers show distinct metabolic and immune signatures in blood

Researchers compared blood samples from 40 regular exercisers and 46 sedentary adults and found differences in metabolites, blood chemistry, and immune cell gene activity. The patterns suggested greater fatty acid use and altered immune signaling among exercisers, but the study could not establish that exercise caused these differences.

21 Sep 2026

German researchers aim to completely degrade breast cancer protein

Simply switching off a protein that helps breast cancer cells to grow? That is not enough for researchers at the University of Duisburg-Essen.

21 Sep 2026

Sex-specific biological clocks reveal how aging differs across the body in women and men

Researchers developed 38 sex-specific biological aging clocks across 15 organ systems, finding differences between females and males in genetic architecture, molecular signatures, disease associations, and mortality patterns. Brain aging clocks were linked to progression from mild cognitive impairment to Alzheimer’s disease in both sexes and to sex-dependent cognitive trajectories among solanezumab-treated A4 participants, while the authors stressed that sex-pooled and sex-interaction models remain complementary approaches.

17 Sep 2026

Immunotherapy combined with BCG vaccine drastically lowers tuberculosis relapse risk

Tuberculosis (TB) remains one of the world's leading causes of death, and preventing post-treatment relapse continues to be a major worldwide health challenge.

17 Sep 2026

Salk scientists demonstrate B cells directly enhance killer T cell function

Cancer is the second leading cause of death in the United States, according to a 2026 Cancer Research Institute report. Cancer biologists are keenly aware of this statistic, as it drives them to innovations that revolutionize cancer care-innovations like immunotherapy.

17 Sep 2026

Refined starch activates immune pathways after low-carb weight loss

After substantial weight loss on a very-low-carbohydrate diet, participants who switched to a diet rich in refined starch showed greater activation of circulating immune and metabolic pathways than those who continued the low-carbohydrate diet or consumed a high-carbohydrate diet rich in added sugar. Mouse experiments suggested that activation of the complement immune pathway may help explain the inflammatory response associated with starch intake.

10 Sep 2026

Modified AlphaFold3 successfully predicts complex protein conformational changes

Conformational changes in proteins are vital to their function yet remain challenging for state-of-the-art artificial intelligence, such as AlphaFold3, to predict.

1 Sep 2026

Researchers traced lifelong obesity resistance in mice back to an early microbial encounter

Natural wild-derived microbiota protected mice against diet-induced obesity across sexes, genetic backgrounds, and age by increasing energy expenditure and promoting a thermogenic program in brown adipose tissue. The effect depended on the immune system’s initial encounter with the microbiota and required CCR2-associated myeloid activity, revealing a long-lasting microbiota-immune-brown fat pathway.

25 Aug 2026

Disrupted brain-immune signaling may help drive neurodegeneration

A Cell perspective argues that neurodegeneration can emerge from disrupted communication between neural and immune networks, with peripheral immunity, microglia, and gene-regulatory programs all shaping disease processes. The authors propose that restoring immune homeostasis and recalibrating neuroimmune circuits could create new therapeutic and diagnostic opportunities, while emphasizing that many mechanisms remain unresolved in humans.

24 Aug 2026