Az epidermális növekedési faktor receptorát célzó terápiák RAS paradoxona vastag- és végbélrákban

作者: József Tímár , István Láng , None

DOI: 10.1556/MONKOL.52.2008.2.7

关键词: PanitumumabMolecular biologyAntibody therapyMedicine

摘要: Absztrakt A vastag- es vegbelrak karcinogenezise soran a korai adenomakban az esetek kozel feleben K-RAS-, ennel ritkabban B-RAF-mutacio alakul ki. K-RAS-mutans daganatok inkabb ferfiakban alakulnak ki, mig B-RAF-mutans tumorok nőkre jellemzőek e genek mutacioja fuggetlen mikroszatellita-statusztol. Az epidermalis novekedesi faktor receptoranak (EGFR) valtozo mertekű expresszioja vegbelrakok dontő hanyadaban kimutathato; maga gen nem mutalt, amplifikacioja igen ritka, gyakrabban megfelelő kromoszoma poliszomiaja miatt fokozott kopiaszam. Ez kepezte alapjat anti-EGFR antitest-terapiak bevezetesenek kezelesebe. E terapiak indikaciojanak sokaig EGFR feherje legalabb minimalis szintű jelentette. ket antitest-terapia kemoterapia-rezisztens kolorektalis rakok monoterapiaja eseten hasonlo (kb. 10%) objektiv tumorvalaszt eredmenyez, mely daganat EGFR-statuszatol. panitumumab eseteben feny derult azonban ...

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