Age-dependent accumulation of RAD51 on non-damaged chromosomes prevents chromosome segregation in mammalian oocytes

This study reveals that the AAA+ ATPase FIGNL1 prevents age-dependent accumulation of RAD51 on non-damaged chromosomes in mammalian oocytes, a process whose failure leads to defective chromosome condensation and meiotic arrest due to the mislocalization of condensin II and topoisomerase II.

Ito, M., Soeda, S., Kondo, T., Furukohri, A., Kajitani, M., Ogata, R., Ohsugi, M., Shinohara, A.2026-03-20📄 cell biology

Optimization of isolation, expansion, and differentiation of canine intestinal organoids

This study establishes an optimized protocol for isolating, expanding, and differentiating canine intestinal organoids from the duodenum and colon, demonstrating that 100 nM PGE2 enhances growth and a two-phase differentiation approach yields functional, marker-positive models suitable for future disease research and translational applications despite a limited sample size.

Dias, I. E., Ritchie, A., Delemarre, M., Schneeberger, K., Viegas, C. A., Dias, I. R., Carvalho, P. P., Spee, B.2026-03-20📄 cell biology

Morphotype-Resolved 3D Morphometry Reveals a Structure-Density-Location Coupling in Mitochondrial Networks

By applying quantitative 3D soft X-ray tomography to intact INS-1E cells, this study reveals that high glucose and Exendin-4 stimulation induce a coupled remodeling of mitochondrial shape, metabolic density, and subcellular location, establishing a structure-density-location relationship across different mitochondrial morphotypes.

Singh, A., Yadav, A., Deshmukh, A., Singh, A., Verma, R., White, K. L., Singla, J.2026-03-20📄 cell biology

Rhomboid protease RHBDL2 is a calcium-activated suppressor of EGFR signalling in keratinocytes.

The study reveals that the human rhomboid protease RHBDL2 acts as a calcium-activated suppressor of EGFR signaling in keratinocytes by shedding the receptor's ectodomain, thereby limiting cell migration and invasion while promoting proper skin differentiation.

Johnson, N., Dohnalek, J., Brezinova, J., Caslavsky, J., Skarkova, A., Jobe, N., Fliegl, M., Travnickova, K., Burbridge, E., Canbay, V., Christiansen, C., auf dem Keller, U., Labaj, J., Fedosieieva, O (…)2026-03-20📄 cell biology

SUN2 mediates epigenetic remodeling to drive mechanotransduction during skin fibrosis

This study identifies SUN2 as a critical nuclear mechanosensor that mediates epigenetic remodeling by coupling extracellular matrix stiffness to chromatin regulation and fibrotic gene expression, thereby driving skin fibrosis and representing a potential therapeutic target.

Nassereddine, A., Davidson, K., Sandria, S., Das, S., Rivera, R., Tran, V. A., Antani, J. D., Hinchcliff, M. D., King, M. C., Horsley, V.2026-03-20📄 cell biology

Analysis of cancer mutations introduced into the Drosophila Notch Negative Regulatory Region uncovers a diversity of regulatory outcomes

This study characterizes the diverse regulatory outcomes of introducing over 20 human cancer mutations into the Drosophila Notch Negative Regulatory Region, revealing distinct mechanisms of constitutive activation and synergy with PEST deletions that depend on the specific mutation location and its impact on protein stability and ligand responsiveness.

Shimizu, H., Baron, M.2026-03-19📄 cell biology

SteMClass: A Novel DNA Methylation-Based Classifier for iPSC In Vitro Differentiation States.

The paper introduces SteMClass, a novel DNA methylation-based classifier that accurately and harmoniously identifies various iPSC differentiation states across different protocols and array versions, thereby establishing a standardized quality control framework to enhance reproducibility and accelerate clinical translation in regenerative medicine.

Perez, E., Fernandez Vallone, V., Teichmann, D., Euskirchen, P., Siewert, C., Osberg, B., Wolkenstein, P., Stachelscheid, H., Capper, D.2026-03-19📄 cell biology

Mitotically Driven Cytoskeletal Reorganization Governs Zebrafish Left-Right Organizer Detachment from EVL and Lumen Morphogenesis

This study reveals that early cytokinetic events in zebrafish dorsal forerunner cells instructively drive cytoskeletal reorganization, actin recruitment, and rosette formation, which are essential for the Kupffer vesicle's detachment from the enveloping layer and subsequent lumen morphogenesis.

Wu, Y., Lan, Y., Allred, M. A., Timpson, C., Hehnly, H.2026-03-19📄 cell biology

A nano-liquid hub integrating growth and immune-evasion signaling to promote cell survival

This study identifies GEM, a metastable 34-nm nano-liquid hub on the plasma membrane that physically integrates growth and immune-evasion signaling through LLPS-like clustering, thereby amplifying survival pathways and promoting tumor growth in vivo.

Tsunoyama, T. A., Hoffmann, C., Sasaki, D., Tan, C., Tang, B., Hirosawa, K. M., Nemoto, Y. L., Kasai, R. S., Fujiwara, T., Suzuki, K. G., Sugita, Y., Ishikawa, H., Milovanovic, D., Kusumi, A.2026-03-18📄 cell biology