La dernière recherche, menée par Dr Pierpaolo Ginefra et dirigée par Dr Nicola Vannini, du Département d’oncologie UNIL-CHUV, révèle le potentiel de l'Urolithine-A pour renforcer l'immunosurveillance du cancer, offrant de nouvelles perspectives pour renforcer la défense de notre corps contre le cancer.
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La dernière recherche, menée par Dr Pierpaolo Ginefra et dirigée par Dr Nicola Vannini, du Département d’oncologie UNIL-CHUV, vient d'être publiée dans Cancer Research Communications.
Leurs résultats démontrent le potentiel prometteur de l'Urolithine-A à renforcer l'immunosurveillance du cancer. Leurs travaux, qui ont précédemment mis en évidence les bénéfices de l’Urolithine-A sur les cellules souches hématopoïétiques (CSH) âgées en cas d’infection, s’attaquent désormais aux jeunes cellules T et à leur rôle dans la lutte contre les cellules cancéreuses.
L'étude* montre que l'Urolithine-A active le facteur de transcription FOXO1 dans les cellules T CD8+, entraînant une expansion de la population de cellules T naïves. Cette activation, associée à l'expression de CD62L, équipe les cellules T de capacités accrues pour lutter contre le cancer, aboutissant finalement à un meilleur contrôle de la croissance tumorale.
Cette recherche passionnante apporte non seulement de nouvelles perspectives sur les effets immunomodulateurs de l'Urolithine-A, mais ouvre également des voies pour de nouvelles explorations dans les stratégies de prévention et de traitement du cancer.
Qu'est-ce que l'Urolithine-A ? L'Urolithine-A est générée par la microflore intestinale en tant que métabolite alimentaire naturel des ellagitannines, une classe de composés présents dans la grenade et d'autres fruits et noix.
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Urolithin-A: A New Frontier in Cancer Defense
In a significant advancement in cancer research, scientists from Vannini Lab, from the Department of oncology UNIL-CHUV, have uncovered exciting findings regarding the potential of Urolithin-A in enhancing cancer immunosurveillance. Building upon their previous work which demonstrated the effect of Urolithin-A on aged hematopoietic stem cells (HSCs), resulting in improved immune system function during infection, the team has now extended their focus to young T cells and their capacity to combat cancer cells.
While the earlier research explored the effects of Urolithin-A on aged HSCs in the context of infection, the current study*, recently published in Cancer Research Communications, investigates its impact on young T cells in the fight against cancer. Importantly, the researchers observed a remarkable enhancement in cancer immunosurveillance among mice pre-exposed to Urolithin-A enriched food.
"Our previous work shed light on the rejuvenating effects of Urolithin-A on the immune system in the context of infection. In this new publication, we are thrilled to unveil its potential in bolstering cancer immunosurveillance," commented lead researcher Dr. Nicola Vannini.
The study elucidates that Urolithin-A activates the FOXO1 transcription factor in CD8+ T cells, leading to an expansion of the Naïve T cell population. This activation, coupled with the expression of CD62L, equips T cells with enhanced cancer-fighting capabilities, ultimately resulting in better control of tumor growth.
"Our findings suggest that incorporating Urolithin-A enriched foods into the diet may offer a novel approach to bolstering the body's defenses against cancer," added Dr. Pierpaolo Ginefra, first author of the study.
This exciting research not only provides new insights into the immunomodulatory effects of Urolithin-A but also opens avenues for further exploration in cancer prevention and treatment strategies.
This study was done in collaboration with Nestlé Health Science. Funding for this research was generously provided by the Swiss Cancer Research Foundation (KFS-4993-02-2020-R).
What is Urolithin-A? Urolithin A is generated by the gut microflora as a natural food metabolite of ellagitannins, a class of compounds found in the pomegranate and other fruits and nuts.
*Urolithin-A promotes CD8+ T cell-mediated cancer immunosurveillance via FOXO1 activation.