news 2026

Tanycytes (white) capture Tau protein (red) circulating in the cerebrospinal fluid and transport it along their extensions/arms, which pass through brain tissue and come into contact with blood vessels (green), into which they release this protein, which is involved in Alzheimer's disease when it accumulates in the brain.

According to a CNRS communication dated February 19, 2026. Based on a scientific publication in Science Advances , to which the RDP - Plant Reproduction and Development Laboratory contributed: "The actin cytoskeleton is required to maintain plant cell division orientation against cellular geometry." Thumbnail credit: © Camila Goldy In plants, cells cannot move or reorganize freely due to their rigid cell walls.

In plants, cells can neither move nor reorganize freely due to their rigid walls. How, then, do they correctly orient their division to build coherent tissues - A study published in Science Advances reveals that, in addition to an already well-documented classical cue, plant cells rely on the actin cytoskeleton to adjust the plane of division according to their environment.

In the event of neuroinflammation, the brain has a rapid defense mechanism: tiny bone channels allow immune cells to pass directly from the cranial bone to the meninges. A recent study by Inserm, CNRS and Aix-Marseille University reveals that these channels are formed in the first few weeks of life, and that their structure can be remodeled to facilitate the passage of immune cells.

A team of researchers from Hôpital Henri-Mondor AP-HP, Inserm, Université Paris-Est Créteil (UPEC) and the ComPaRe - Neurofibromatosis cohort, coordinated by Dr Laura Fertitta and Pr Pierre Wolkenstein, has developed the cNF-PUSH-D'oe questionnaire.this is the first questionnaire to measure the stigma experienced by people with neurofibromatosis type 1 in relation to cutaneous neurofibromas.

In an article published in Genome Biology , scientists show that DNA replication not only ensures faithful duplication of the genome, but also helps reshape the three-dimensional organization of chromosomes in the nucleus.

Only a few animals in the world possess the ability to regenerate tissue, enabling them to regrow limb parts or whole limbs after amputation. In a study published in the journal PNAS , a research team from Inserm, the University of Montpellier and Montpellier University Hospital shows that laboratory-grown mouse embryos can only initiate regeneration of forelimb buds, such as the front legs, for an extremely short period: between 10.5 and 12.5 days after fertilization, when limb buds are just beginning to form.