Elevated expression of macrophage migration inhibitory factor correlates with tumor recurrence and poor prognosis of patients with gliomas

J Neurooncol. 2012 Jan;106(1):43-51. doi: 10.1007/s11060-011-0640-3. Epub 2011 Jul 3.

Abstract

Macrophage migration inhibitory factor (MIF) plays a critical role in tumorigenesis. We aim to examine the association of MIF with tumor recurrence and survival of gliomas, and to determine whether MIF is a valuable prognostic predictor for glioma patients. The expression of MIF and interleukin 8 (IL-8) was evaluated in 36 high-grade gliomas (20 glioblastoma multiforme, 13 anaplastic astrocytoma, and 3 anaplastic oligoastrocytoma) and 32 low-grade gliomas (18 fibrillary astrocytoma, 5 pilocytic astrocytoma, 5 oligodendroglioma, 3 ependymoma and 1 pleomorphic xanthoastrocytoma) by immunostaining. Intratumoral microvessel density (IMD) of tumors in relation to immunostainings and clinicopathological factors were analyzed statistically as well as the follow-up data of patients. High expression of both MIF (58.8%) and IL-8 (52.9%) was significantly associated with high-grade gliomas and increased microvessels in tumors, but only high expression of MIF was closely related to tumor recurrence (P = 0.001). High expression of IL-8 exhibited a close correlation with high expression of MIF in tumors (P = 0.001). Histological grading, high expression of MIF and IL-8 correlated with patients' overall survival in univariate analysis. However, only histological grading and MIF expression exhibited a relationship with survival of patients as independent prognostic factors of glioma by multivariate analysis; the hazard ratios were 28.012 (P = 0.001) and 11.782 (P = 0.001), respectively. Elevated production of MIF in glioma tumor cells may contribute to tumor recurrence and a worse prognosis. MIF may serve as an independent predictive factor for prognosis of glioma patients.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Brain Neoplasms / blood supply
  • Brain Neoplasms / genetics*
  • Brain Neoplasms / pathology*
  • Capillaries / pathology
  • Child
  • Female
  • Follow-Up Studies
  • Genetic Markers
  • Glioma / blood supply
  • Glioma / genetics*
  • Glioma / pathology*
  • Humans
  • Immunohistochemistry
  • Interleukin-8 / biosynthesis
  • Interleukin-8 / genetics
  • Kaplan-Meier Estimate
  • Macrophage Migration-Inhibitory Factors / biosynthesis*
  • Male
  • Middle Aged
  • Neoplasm Recurrence, Local / genetics*
  • Neovascularization, Pathologic / pathology
  • Predictive Value of Tests
  • Prognosis
  • Regression Analysis
  • Survival
  • Young Adult

Substances

  • Genetic Markers
  • Interleukin-8
  • Macrophage Migration-Inhibitory Factors