Gut Microbiota Production of Phenylacetate Programs Vascular Niche Senescence and Drives Atherosclerosis

This study demonstrates that the gut microbiota-derived metabolite phenylacetate drives atherosclerosis by inducing endothelial senescence and a secreted IL-6/Notch1 signaling axis that disrupts perivascular adipose tissue function, revealing a novel microbiome-targeted therapeutic avenue for age-related vascular disease.

Shabanian, K., Constancias, F., Pugin, B. + 17 more2026-03-02📄 cell biology

Single-cell Analysis of Paired FFPE Placentas Reveals Trophoblast Reprogramming and Immune Dysregulation in Chronic Villitis of Unknown Etiology

This study establishes an FFPE-compatible single-nucleus RNA sequencing method to reveal that Chronic Villitis of Unknown Etiology involves stress-induced trophoblast reprogramming and loss of immune privilege, leading to aberrant maternal-fetal immune activation and adverse pregnancy outcomes.

Li, J., Wang, M., Zhang, Q. + 7 more2026-03-02📄 cell biology

Substance matters: IL5 and IL33 activation of eosinophils on periostin and fibrinogen induce cytoskeletal reorganization and cell death

This study demonstrates that while IL5 and IL33 both activate human eosinophils, IL33 induces a distinct, transient pear-shaped polarization followed by a flattened, less polarized morphology with reduced motility and increased cell death on periostin and fibrinogen surfaces, highlighting how specific cytokine activators and adhesive substrates jointly regulate eosinophil cytoskeletal reorganization and functional behavior.

Mitchell, J., Mosher, D. F.2026-03-02📄 cell biology

Non-canonical signaling mechanisms of short-chain fatty acid receptors in glucagon-like peptide-1 (GLP-1) releasing enteroendocrine cells

This study reveals that short-chain fatty acids and ketone bodies differentially regulate GLP-1 secretion in enteroendocrine cells by activating FFA2 and FFA3 receptors through distinct, non-canonical intracellular signaling pathways that operate independently of or diverge from traditional G-protein mechanisms.

Masse, K. E., Lee, B. N., Wu, H. + 5 more2026-03-02📄 cell biology

Single Cell Transcriptomics and Surface Protein Expression Reveal Distinct Cellular and Molecular Phenotypes in Human RPESC-RPE and PSC-RPE

This study utilizes CITE-Seq to demonstrate that while both adult RPESC-derived and PSC-derived RPE cells express key markers, they exhibit distinct molecular and surface protein profiles—specifically higher mature retinal function markers and CD24 in RPESC-RPE versus stem cell-related genes and CD57 in PSC-RPE—suggesting significant differences in their functional and immunomodulatory properties that could influence transplantation outcomes for AMD.

Nandakumar, S., Farjood, F., Bertucci, T. + 8 more2026-03-01📄 cell biology

CD14 and and TLR4 contribute to the circadian regulation of retinal phagocytosis as co-receptors

This study demonstrates that the innate immunity receptors CD14 and TLR4 act as tissue-specific co-receptors that, through MyD88-dependent kinase signaling and circadian replenishment, collaborate with other receptors like MerTK and CD36 to regulate the daily peak of photoreceptor outer segment phagocytosis in retinal pigment epithelium cells.

Dhaoui Hajem, L., Enderlin, J., Rieu, Q. + 6 more2026-03-01📄 cell biology