The correlation between phosphorylated Histone H3 (PHH3) and p-STAT3 in Meningiomas.

To assess the correlation between PHH-3 and STAT-3 in grade I and grade II meningiomas.Medical records were retrospectively reviewed for all cranial cases which diagnosed and underwent surgery at Bezmialem Vakif University Hospital between 2012 and 2017. All cranial grade I and grade II meningioma patients constituted the core sample for this study.This series included 104 (69 female, 35 male) patients, with a median age of 57.3 years. The mean preoperative course was 23.0 ± 40.5 months. The most common symptom was headache (76%) and followed by seizure (24%), weakness (18%) and visual disturbances (14%). Seventy one (68.2%) patients were diagnosed as WHO grade I meningioma and 33 (31.8%) were WHO grade II, grade III meningiomas were excluded from study due to small number of patients. Subtypes of meningioma includes 5 angiomatous (4,8%), 6 fibroblastic (5.7%), 1 meningothelial (0,9%), 11 psammomatous (10,5%), 3 secretory (2,8%), 43 transitional (41,3%) and 33 atypical (31,7%) meningiomas. There is a strong correlation with PHH-3 and Ki-67 (p:0,001>) and mitosis index (p:0,001 > ) although there is no correlation with STAT-3 (p:0,260). There is a strong correlation with STAT-3 and Ki-67 (p:0,013), although there is no correlation with mitosis index (p:0,085) and PHH-3 (p:0,260).In our study we also obtain same results with Ki-67 and mitotic index, although correlation with PHH-3 and STAT-3 is firstly determined and there was no statistically significant relation were observed. Depends on the STAT-3 cell proliferation feature, inactivation of these pathways may predict new chemotherapies for grade II meningiomas.