Une étude révèle que le mélanome se propage davantage à l'âge mûr

31 mai 2026

Rapporté par l'IA

De nouvelles recherches du Fox Chase Cancer Center montrent que le mélanome se propage de manière plus agressive chez les souris d'âge mûr que chez les souris jeunes ou très âgées. Ce phénomène semble lié à l'évolution, au fil du temps, d'un type spécifique de cellule immunitaire.

Les chercheurs ont présenté ces résultats lors de la réunion annuelle de l'American Association for Cancer Research. La propagation du cancer a atteint son pic chez les souris d'âge mûr, tandis qu'elle est restée plus faible chez les souris jeunes et a de nouveau décliné chez les souris très âgées. Mitchell Fane, le chercheur principal, a souligné que la plupart des études en laboratoire n'utilisent que des souris jeunes, ce qui limite la compréhension du comportement du cancer chez les patients plus âgés.

Articles connexes

Illustration of abdominal fat cells related to aging and new fat generation.

Study links age-related belly fat to a newly identified fat-progenitor cell state

27 juin 2026 Rapporté par l'IA Image générée par IA Vérifié par des faits

Researchers at City of Hope report that aging can spur the emergence of an age-enriched population of adipose progenitor cells that is especially prone to generating new fat cells in abdominal white fat. The work, published in Science, points to a signaling pathway that may help drive midlife increases in belly fat and could become a future therapeutic target.

Ovaries may change identity after menopause in mice

New research in mice suggests that ovaries undergo significant changes after reproductive decline, potentially contributing to inflammation. Scientists found increased immune cell activity in aged ovaries.

GATA6 loss drives colorectal cancer spread to liver

8 juillet 2026 Rapporté par l'IA

Researchers have identified how reduced levels of the GATA6 factor enable colorectal cancer cells to adopt a fetal-like state and metastasize to the liver. The findings point to epigenetic changes rather than genetic mutations as a key driver of this deadly progression.

Health

Study links gut “luminal exosomes” to age-related inflammation and metabolic decline in mice

Health

Study of nearly 500 cat tumors finds cancer-gene overlaps with humans and dogs

Health

Study finds olive oil fat speeds pancreatic cancer in mice

Stiffening cancer cells boosts car t-cell therapy in mice

Researchers have found that making cancer cells stiffer can enhance the effectiveness of car t-cell therapy against aggressive tumors. In experiments with mice, the approach led to complete tumor disappearance in some cases. The findings were presented recently at a conference in London.

Silica nanoparticles eliminate prostate tumors in mice

9 juillet 2026 Rapporté par l'IA

Researchers at Weill Cornell Medicine have developed tiny silica nanoparticles that destroyed aggressive prostate cancer tumors in mice while boosting the immune system. The treatment led to complete remissions when combined with immunotherapy.

mercredi 22 juillet 2026 23h27

Une étude révèle que le mélanome se propage davantage à l'âge mûr

Articles connexes

Study links age-related belly fat to a newly identified fat-progenitor cell state

Ovaries may change identity after menopause in mice

GATA6 loss drives colorectal cancer spread to liver

Study links gut “luminal exosomes” to age-related inflammation and metabolic decline in mice

Study of nearly 500 cat tumors finds cancer-gene overlaps with humans and dogs

Study finds olive oil fat speeds pancreatic cancer in mice

Stiffening cancer cells boosts car t-cell therapy in mice

Silica nanoparticles eliminate prostate tumors in mice

Modeling study suggests earlier drug switches could curb cancer resistance

Pitt team reports dual promoter mutations that help melanoma cells sustain unusually long telomeres

Study finds blood-cancer-linked mutations in brain immune cells tied to Alzheimer’s pathology

Study links loss of MHC class I on tumors to CD4+ T cell-driven ferroptosis

Mouse study suggests restoring a youthful gut microbiome may curb age-related liver damage and cancer risk

Ce site utilise des cookies