Investigation of serum levels and tissue expression of two genes IGFBP-2 and IGFBP-3 act as potential biomarker for predicting the progression and survival in patients with glioblastoma multiforme
| Autor: | Kourosh Shahraki, Babak Masoumi, Hesam Abdolhoseinpour, Reza Jalili Khoshnood, Peyman Karimi Goudarzi, Farzad Mehrabi, Emad Yahaghi |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male 0301 basic medicine Oncology Aging medicine.medical_specialty Pathology Enzyme-Linked Immunosorbent Assay Context (language use) Kaplan-Meier Estimate Biology 03 medical and health sciences 0302 clinical medicine Internal medicine Biomarkers Tumor medicine Humans Clinical significance In patient Gene Aged Aged 80 and over Sex Characteristics Brain Neoplasms Brain Middle Aged medicine.disease Immunohistochemistry Tumor Burden Insulin-Like Growth Factor Binding Protein 2 Insulin-Like Growth Factor Binding Protein 3 030104 developmental biology Neurology Tissue expression 030220 oncology & carcinogenesis Potential biomarkers Female Neurology (clinical) Glioblastoma Blood Chemical Analysis |
| Zdroj: | Journal of the Neurological Sciences. 366:202-206 |
| ISSN: | 0022-510X |
| Popis: | Identification of genetic copy number changes in glial tumors is of importance in the context of improved/refined diagnostic, prognostic procedures and therapeutic decision-making. Blood-derived biomarkers, therefore, would be useful as minimally invasive markers that could support diagnosis and enable monitoring of tumour growth and response to treatment.The aim of this study was to evaluate the clinical significance of IGFBP-2/3 in glioblastoma multiforme (GBM) and their value as predictors of survival.We examined the plasma levels of IGFBP-2 and IGFBP-3 using ELISA in patient suffering from GBM and controls groups. Furthermore, immunohistochemistry method was used to evaluate the expression levels of these markers.Preoperative plasma levels of IGFBP-2 and IGFBP-3 were markedly higher in glioblastoma patients (mean±SD: 521.5±164.2ng/ml; 402.4±126ng/ml) when compared with healthy controls (301.28±73.12; 244±89.5ng/ml; p0.001). Immunohistochemical results indicated that the median H score for glioblastoma tissues was higher when compared with normal tissues. The mean scores for IGFBP-2 expression in glioblastoma was higher than normal tissues (p0.001). Our result showed that the median H score for glioblastoma tissues was higher when compared with normal tissue for IGFBP-3 expression. The mean scores for glioblastoma tissues was higher than normal tissues (p0.001). We also evaluated whether plasma IGFBP-2 and IGFBP-3 levels were related to clinical features. The plasma IGFBP-2 level was strongly linked to the patient's age (R=0.769, P=0.001) that were strongly increased in patients with older age (65), (mean±SD: 594.36±33.3ng/ml). On the other hand, plasma IGFBP-3 level was not correlated with age (P=0.462), sex (P=0.532), and tumor size (P=0.245). Our findings indicated that the tissue IGFBP-2 level was also markedly correlated with the patient's age (R=0.612, P=0.015). On the other hand, tissue IGFBP-3 expression level was not correlated with age (P=0.472), sex (P=0.512), and tumor size (P=0.241). Kaplan-Meier survival and log-rank analysis suggested that patients with high plasma level of IGFBP-2 and tissue expression of IGFBP-2 had shorter overall survival than those with low levels (log-rank test P=0.027; P0.001). Kaplan-Meier survival and log-rank analysis suggested that patients with high plasma level of IGFBP-3 and tissue expression of IGFBP-3 had shorter overall survival than those with low levels groups (log-rank test P=0.018; P0.001).These data suggest that plasma levels and tissue levels of IGFBP-2 and IGFBP-3 may be as potential biomarkers for predicting the progression and survival in patients with GBM. |
| Databáze: | OpenAIRE |
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