Embryonic cortical extracellular vesicles confer neuroprotection via multipathway signaling with CaMKIIα as a key mediator

This study demonstrates that small extracellular vesicles derived from the embryonic mouse cortex confer neuroprotection and restore neuronal function in aged models by delivering surface-bound BDNF to activate the CaMKIIα signaling axis, thereby stabilizing microtubules and enhancing synaptic plasticity.

Garcia-Rodriguez, R., Gonzalez de la Fuente, S., Guerrero-Valero, M. + 6 more2026-02-18📄 molecular biology

Regulatory landscapes and structural choreography of transcription initiation in spirochetes

This study reveals that spirochetal RNA polymerase possesses a diminished ability to melt promoters and a unique mechanism of -35 element disengagement, which are compensated by CarD and accompanied by unusually tight non-sequence-specific DNA binding, collectively highlighting the distinct regulatory and structural adaptations of transcription in spirochetes.

Trapp, V. K., Wang, T., Hilal, T. + 8 more2026-02-17📄 molecular biology

Conserved sequence elements in the final exon of MDM2-eight-exon skipping event reveal a cassette regulon model of alternative splicing controlled by a distal regulatory element.

This study demonstrates that genotoxic stress-induced eight-exon skipping in the MDM2 proto-oncogene is governed by a distal regulatory element within the final exon, supporting an "Exon Regulon" model of coordinated splicing that offers new insights for developing cancer therapies targeting specific splice variants.

Khurshid, S., Montes, M., Rahat, R. + 8 more2026-02-17📄 molecular biology

Aging in Fast-Forward: An Inducible SIRT6 Deficiency model as a Lens on Brain Aging and Neurodegeneration

This study presents a novel, inducible, and reversible neuron-like model that mimics gradual SIRT6 depletion to recapitulate key molecular hallmarks of brain aging and neurodegeneration, enabling the distinction between physiological and pathological changes while identifying disrupted nucleocytoplasmic transport as a shared mechanism.

Rabuah Botton, Y., Smirnov, D., Yang, S. + 7 more2026-02-17📄 molecular biology

WITHDRAWN: The effects of estrogen on cardiac progenitor cell-derived extracellular vesicles in enhancing cardiac protection through promoting tissue repair and regeneration

This manuscript, which originally investigated the role of estrogen in enhancing cardiac protection via extracellular vesicles from cardiac progenitor cells, has been withdrawn by the authors to incorporate additional data and undergo substantial revision prior to resubmission.

Aksoy, Z. B., Aydos, D., Kocakaya, E. + 3 more2026-02-16📄 molecular biology

Antisense oligonucleotide allele-specific targeting of EFEMP1 in a patient-derived model of Doyne honeycomb retinal dystrophy

This study demonstrates that an allele-specific antisense oligonucleotide effectively clears mutant EFEMP1 transcripts and reverses disease-associated extracellular deposits and intracellular lipid accumulation in a patient-derived model of Doyne honeycomb retinal dystrophy, suggesting a promising therapeutic strategy for this incurable condition.

Rezek, F. O., Sanchez-Pintado, B., Eden, E. R. + 6 more2026-02-16📄 molecular biology