PMID- 21134002 OWN - NLM STAT- MEDLINE DCOM- 20111212 LR - 20220408 IS - 1440-1789 (Electronic) IS - 0919-6544 (Linking) VI - 31 IP - 4 DP - 2011 Aug TI - Homozygous 10q23/PTEN deletion and its impact on outcome in glioblastoma: a prospective translational study on a uniformly treated cohort of adult patients. PG - 376-83 LID - 10.1111/j.1440-1789.2010.01178.x [doi] AB - Tumors from a prospective cohort of adult patients with newly diagnosed glioblastoma (n=73), treated uniformly with radiochemotherapy, were examined for 10q23/PTEN deletion by fluorescence in situ hybridization (FISH). Statistical methods were employed to evaluate the degree of association between 10q23/PTEN deletion status and patient age. Survival analysis was performed using Kaplan-Meier log-rank test and multivariable Cox models to assess the prognostic value of 10q23/PTEN deletion. Interestingly, 10q23/PTEN homozygous deletion was frequent in patients >45 years of age (P=0.034) and the median age of patients harboring PTEN homozygous deletions was significantly higher than those with the retained status (P=0.019). 10q23/PTEN homozygous deletion was associated with shorter survival in the entire cohort as well in patients >45 years (P<0.05), indicating that loss of 10q23/PTEN showed clinical importance in elderly patients. Our study highlights the independent prognostic/predictive value of 10q23/PTEN deletion status as identified by FISH, particularly in glioblastoma patients aged >45 years. CI - (c) 2010 Japanese Society of Neuropathology. FAU - Srividya, Mallavarapu R AU - Srividya MR AD - Departments of Neuropathology, Neurosurgery and Biostatistics, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India. FAU - Thota, Balaram AU - Thota B FAU - Shailaja, Bangalore C AU - Shailaja BC FAU - Arivazhagan, Arimappamagan AU - Arivazhagan A FAU - Thennarasu, Kandavel AU - Thennarasu K FAU - Chandramouli, Bangalore A AU - Chandramouli BA FAU - Hegde, Alangar S AU - Hegde AS FAU - Santosh, Vani AU - Santosh V LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101206 PL - Australia TA - Neuropathology JT - Neuropathology : official journal of the Japanese Society of Neuropathology JID - 9606526 RN - EC 3.1.3.67 (PTEN Phosphohydrolase) RN - EC 3.1.3.67 (PTEN protein, human) SB - IM MH - Adult MH - Brain Neoplasms/*genetics/mortality MH - *Chromosome Aberrations MH - *Chromosomes, Human, Pair 10 MH - Female MH - Gene Dosage MH - Glioblastoma/*genetics/mortality MH - Humans MH - Male MH - PTEN Phosphohydrolase/*genetics MH - Predictive Value of Tests MH - Prognosis MH - Prospective Studies MH - Survival Analysis EDAT- 2010/12/08 06:00 MHDA- 2011/12/14 06:00 CRDT- 2010/12/08 06:00 PHST- 2010/12/08 06:00 [entrez] PHST- 2010/12/08 06:00 [pubmed] PHST- 2011/12/14 06:00 [medline] AID - 10.1111/j.1440-1789.2010.01178.x [doi] PST - ppublish SO - Neuropathology. 2011 Aug;31(4):376-83. doi: 10.1111/j.1440-1789.2010.01178.x. Epub 2010 Dec 6.