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Published in: BMC Cancer 1/2024

Open Access 01-12-2024 | Glioblastoma | Research

CD13 expression affects glioma patient survival and influences key functions of human glioblastoma cell lines in vitro

Authors: Wenying Zhang, Anne Blank, Irina Kremenetskaia, Anja Nitzsche, Güliz Acker, Peter Vajkoczy, Susan Brandenburg

Published in: BMC Cancer | Issue 1/2024

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Abstract

CD13 (APN) is an Alanyl-Aminopeptidase with diverse functions. The role of CD13 for gliomas is still unknown. In this study, data of glioma patients obtained by TCGA and CGGA databases were used to evaluate the survival rate and prognostic value of CD13 expression level. Protein expression of CD13 was confirmed by immunofluorescence staining of fresh patient tissues. Eight human glioblastoma cell lines were studied by RT-PCR, Western Blot, immunofluorescence staining and flow cytometry to define CD13 expression. Cell lines with different CD13 expression status were treated with a CD13 inhibitor, bestatin, and examined by MTT, scratch and colony formation assaysas well as by apoptosis assay and Western Blots. Bioinformatics analysis indicated that patients with high expression of CD13 had poor survival and prognosis. Additionally, CD13 protein expression was positively associated with clinical malignant characteristics. Investigated glioblastoma cell lines showed distinct expression levels and subcellular localization of CD13 with intracellular enrichment. Bestatin treatment reduced proliferation, migration and colony formation of glioma cells in a CD13-dependent manner while apoptosis was increased. In summary, CD13 has an impact on glioma patient survival and is important for the main function of specific glioma cells.
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Metadata
Title
CD13 expression affects glioma patient survival and influences key functions of human glioblastoma cell lines in vitro
Authors
Wenying Zhang
Anne Blank
Irina Kremenetskaia
Anja Nitzsche
Güliz Acker
Peter Vajkoczy
Susan Brandenburg
Publication date
01-12-2024
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2024
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/s12885-024-12113-z

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