Des tests sanguins pour les détecter grâce à l'ADN — Cancers

22 Août, 2017, 05:48 | Author: Cyril Hebras
  • Test de dépistage des cellules cancéreuses

Une étude américaine publiée le 16 août dernier dans la revue Science translational Medicine avance en effet pouvoir détecter les tumeurs de manière précoce grâce à des tests sanguins et des analyses ADN.

Comme le rappelle cette étude, l'importance des souffrances et le nombre de décès dépendent pour beaucoup de la précocité du diagnostic.

" Nous essayons de trouver l'aiguille dans la botte de foin, alors lorsque nous trouvons une altération de l'ADN, nous voulons nous assurer que c'est bien ce que nous pensons " a expliqué Victor Velculescu, co-auteur de l'étude et spécialiste en oncologie au Johns Hopkins Kimmel Cancer Center à Baltimore (Etats-Unis).

Pour le cancer du poumon, sur les 71 malades de l'étude touchés par cette maladie, 45 % ont été diagnostiqués au stade 1 et 72 % au stade 2. Pour le cancer de l'ovaire, ce chiffre monte à 67% au stade 1 et 75% au stade 2.

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Ce test limite le risque de "faux positifs ".

Autre avancée, l'expérience a également été menée sur un groupe témoin en bonne santé.

Le test semble donc prometteur même s'il doit donc être perfectionné.

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