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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
CREB3L1 and PTN expressions correlate with prognosis of brain glioma patients.
Bioscience Reports 2018 May 30
The present study was conducted to investigate the clinical significance of cAMP responsive element binding protein 3 like 1 (CREB3L1) and pleiotrophin (PTN) expression in prognosis of patients with brain gliomas. Human brain tissue samples were collected from normal glial tissues (control), low- and high-grade glioma tissues. CREB3L1 and PTN expression levels in cells were assessed by immunohistochemistry (IHC), and population distribution of the CREB3L1- and PTN-presenting patients was examined. The CREB3L1 and PTN mRNA expression levels in three types of the brain cells was determined by RT-PCR. Survival rates for population of the CREB3L1- and PTN-presenting patients were examined. CREB3L1+ cell counts were decreased with increased PTN+ cells in the low-grade and high-grade glioma tissues as compared with the control. Population proportion of the CREB3L1+ -presenting patients decreased from the control to the high-grade glioma and the population of the PTN+ -presenting patients increased in low- and high-grade gliomas as compared with the control (both P <0.05). The decrease in the CREB3L1 mRNA expression was associated with the increase in the PTN mRNA expression in the low- and high-grade gliomas ( P <0.05). Survival time for patients with CREB3L1- and PTN+ gliomas was shorter than patients with CREB3L1+ and PTN- gliomas in the investigated cohorts (both P <0.05). There was a relationship between the expression levels of both proteins and survival time. CREB3L1 and PTN expression levels serve as biomarkers with utility in grading gliomas. Absence of CREB3L1 and presence of PTN in brain glioma cells correlate with survival time of the glioma patients.
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