Univerzitetni klinični center Maribor (SBMB)
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Neural stem cell markers, nestin and musashi proteins, in the progression of human glioma: correlation of nestin with prognosis of patient survivalStrojnik, Tadej ...Background: The IF protein nestin and the RNA-binding protein musashi are expressed by neural progenitor cells during CNS development. Their expression in glial tumors was evaluated by ... immunohistochemistry, and the histopathological scores correlated with levels of cysteine cathepsins that are known prognostic markers in several tumors. Methods: The levels of nestin, musashi, and cathepsins B and L were assessed by immunohistochemical analysis of biopsies from 87 patients with primary CNS tumors. To confirm the immunohistochemical data, nestin expression was analyzed by real-time PCR in 12 brain tumor biopsies. The exact location of nestin-positive cells was determined by mapping the distribution of nestin in a highly invasive human glioma xenograft model. Results: Immunostaining revealed nestin to be expressed in 95.8% and musashi in 80% of the patient biopsies. The total IHC score for nestin was significantly higher in high- than in low-grade tumors (P< .0001). No difference was observed for musashi (P = .11). Real-time PCR of nestin expression confirmed the immunohistochemical data. Nestin expression was shown to be a strong prognostic marker for decreased overall survival (P =.0001), whereas musashi expression has no prognostic significance. Moreover, nestin was shown by Cox regression analysis to be a stronger prognostic marker than cathepsins B and L. IHC staining of nestin in a xenograft model showed that its expression is localized mainly in the invasive tumor cells at the tumor periphery. Conclusions: Nestin is shown to be a strong prognostic marker for glioma malignancy. The presented data links the invasive glioma cells to CNS precursor cells, indicating that the most malignant cells in the gliomas may well be closely related to the glioma stem cells.Vir: Surgical neurology. - ISSN 0090-3019 (Vol. 68, no. 2, aug. 2007, str. 133-143)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 2007Jezik - angleškiCOBISS.SI-ID - 2723903
Avtor
Strojnik, Tadej |
Røsland, Gro Vatne |
Sakariassen, Per Oystein |
Kavalar, Rajko |
Lah Turnšek, Tamara
Teme
Glioma |
Gliom |
Stem Cells |
Matične celice |
Biological Markers |
Biološki markerji |
Cathepsins |
Katepsini |
Immunohistochemistry |
Imunohistokemija |
Prognosis |
Prognoza |
Survival |
Preživetje
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Strojnik, Tadej | 17002 |
Røsland, Gro Vatne | ![]() |
Sakariassen, Per Oystein | ![]() |
Kavalar, Rajko | 10772 |
Lah Turnšek, Tamara | 07802 |
Vir: Osebne bibliografije
in: SICRIS
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