Prognostic significance of DNA patterns and resistance-predictive tests in non-small cell lung carcinoma

✍ Scribed by Manfred Volm; Peter Drings; JÜRgen Mattern; Jaroslav Sonka; Ingolf Vogt-Moykopf; Klaus Wayss

• Publisher: John Wiley and Sons
• Year: 1985
• Tongue: English
• Weight: 613 KB
• Volume: 56
• Category: Article
• ISSN: 0008-543X
• DOI: 10.1002/1097-0142(19850915)56:6<1396::aid-cncr2820560630>3.0.co;2-l

✦ Synopsis

In a cooperative study, 240 surgical specimens of patients with non-small cell lung carcinomas (NSCLC) were investigated by means of flow cytometry, xenotransplantation to athymic mice and, an in vitro short-term test for predicting resistance. Aneuploidy was found in 83% of the tumors, and 20% showed more than one aneuploid DNA stemline. Patients with both aneuploid tumors and tumors with more than one DNA stemline had a significantly shorter survival rate than those with only diploid or only one DNA stemline. Patients whose tumors showed a low GO/Gl-cell proportion or a high proliferation pool (S and G2/M-cell proportion) died earlier. A relationship could not be discerned between growth of tumors in nude mice or establishment of cell lines and the prognosis for the patients. Patients with in vitro-resistant tumors died earlier under chemotherapy than those with in vitro-sensitive tumors. Patients treated by radiation survived longer if the tumors were resistant in vitro. Thus, DNA patterns and in vitro short-term tests for predicting resistance represent useful tools for prognostic evaluation of patients with NSCLC.