PMID- 21486686 OWN - NLM STAT- MEDLINE DCOM- 20110705 LR - 20110502 IS - 1872-7980 (Electronic) IS - 0304-3835 (Linking) VI - 306 IP - 1 DP - 2011 Jul 1 TI - Identification of therapy-sensitive and therapy-resistant neuroblastoma subtypes in stages III, IVs and IV. PG - 27-33 LID - 10.1016/j.canlet.2011.02.016 [doi] AB - The aim was to present a new model of risk stratification with high predictive sensitivity for non-localized neuroblastomas (NBs). "MYCN amplification", "unfavorable histology of the International Neuroblastoma Pathology Classification (INPC) system" and "low Ha-ras/trk A expression" could be defined as an independent predictor for high-risk NBs. A risk stratification flow chart was applied to 103 advanced NBs in which all three factors were examined and 69 were grouped as high-risk NBs of which 38 patients died. The predictive sensitivity for poor patient outcome was 86%, which included 38 of the 44 total deaths in this analysis. Using the number of the three independent risk factors in each tumor, the 69 high-risk NBs were classified into three subgroups. NBs with the three risk factors (triple risk) represented the most aggressive character and survival of the affected patients was only 10% ("therapy-resistant NBs"). Survivals of the patients with NBs possessed the two (double) risk factors or the one (single) risk factor were 29% and 66%, respectively. This stratification also elucidated a subgroup in which patient survival was 90% ("therapy-sensitive"). There were 21 NBs with "high Ha-ras/trk A expression", "favorable INPC histology" and "unamplified MYCN" (no risk NBs). Among the four subgroups without a risk factor, with a single risk factor, with double risk and with triple risk, Kaplan-Meier analysis showed a significant difference in NB patient outcome (p<0.0001). Risk stratification might improve the therapeutic efficacy for the high-risk NBs and might decrease therapy-related sequelae in the lower risk NBs. CI - Copyright (c) 2011. Published by Elsevier Ireland Ltd. FAU - Kyo, Yohko AU - Kyo Y AD - National Hospital Organization Hiroshimanishi Medical Center, Hiroshima, Japan. FAU - Tanaka, Takeo AU - Tanaka T FAU - Hayashi, Kunihiko AU - Hayashi K FAU - Iehara, Tomoko AU - Iehara T FAU - Kaneko, Michio AU - Kaneko M FAU - Hosoi, Hajime AU - Hosoi H FAU - Sugimoto, Tohru AU - Sugimoto T FAU - Hamasaki, Minoru AU - Hamasaki M FAU - Kobayashi, Masao AU - Kobayashi M FAU - Sawada, Tadashi AU - Sawada T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110412 PL - Ireland TA - Cancer Lett JT - Cancer letters JID - 7600053 RN - 0 (Antineoplastic Agents) SB - IM MH - Antineoplastic Agents/pharmacology MH - Child MH - Child, Preschool MH - Decision Support Techniques MH - Disease-Free Survival MH - *Drug Resistance, Neoplasm MH - Female MH - Humans MH - Infant MH - Infant, Newborn MH - Male MH - Neoplasm Staging/*methods MH - Neuroblastoma/*diagnosis/*drug therapy/mortality MH - Prognosis MH - Risk Factors MH - Sensitivity and Specificity MH - Treatment Outcome EDAT- 2011/04/14 06:00 MHDA- 2011/07/06 06:00 CRDT- 2011/04/14 06:00 PHST- 2010/11/27 00:00 [received] PHST- 2011/02/11 00:00 [revised] PHST- 2011/02/15 00:00 [accepted] PHST- 2011/04/14 06:00 [entrez] PHST- 2011/04/14 06:00 [pubmed] PHST- 2011/07/06 06:00 [medline] AID - S0304-3835(11)00089-9 [pii] AID - 10.1016/j.canlet.2011.02.016 [doi] PST - ppublish SO - Cancer Lett. 2011 Jul 1;306(1):27-33. doi: 10.1016/j.canlet.2011.02.016. Epub 2011 Apr 12.