
RO C H E DIAG NOSTI C S - 10 000 B IO N°75 - NOVE M B R E 2006 RO C H E DIAG NOSTI C S - 10 000 B IO N°75 - NOVE M B R E 200 6
INNOVATION
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RO C H E DIAG NOSTI C S - 10 000 B IO N°75 - NOVE M B R E 2006 RO C H E DIAG NOSTI C S - 10 000 B IO N°75 - NOVE M B R E 200 6
Les marqueurs tumoraux, dont l’indica-
tion essentielle est le suivi post théra-
peutique des tumeurs primaires peuvent
permettre un examen précocement posi-
tif et très fiable lorsqu’ils sont utilisés
de façon judicieuse. Ils sont par ailleurs
simples à utiliser, peu invasifs et peu
onéreux. Le coût d’un marqueur tumo-
ral est inférieur à 19 euros. L’élévation
isolée d’un marqueur tumoral semble
confirmer dans de nombreux cancers
l’utilité d’un examen par TEP-18FDG. En
augmentant la spécificité de l’exploration,
les marqueurs tumoraux devraient per-
mettre une meilleure prescription de la
TEP à condition de disposer d’un seuil de
différenciation fiable, faisant concorder le
diagnostic de récidive biochimique avec
la mise en évidence de la maladie métas-
tatique. Pour cela, la connaissance du
taux initial du marqueur, ainsi qu’un suivi
régulier, par la même technique dans un
même laboratoire, s’avèrent indispensa-
bles. Néanmoins, la TEP, même couplée
aux marqueurs tumoraux n’aura d’intérêt
que si elle induit des conduites thérapeu-
tiques nouvelles. Il faudra alors évaluer le
bénéfice de l’avance au diagnostic pour
le patient. Cela ne pourra être validé que
sur la base d’études dédiées incluant
d’emblée un suivi par les marqueurs
tumoraux et la TEP.
Contact Roche Diagnostics :
frederic.eberle@roche.com
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MARQUEURS TUMORAUXMARQUEURS TUMORAUX