Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Lohberger, B; Rinner, B; Stuendl, N; Absenger, M; Liegl-Atzwanger, B; Walzer, SM; Windhager, R; Leithner, A.
Aldehyde dehydrogenase 1, a potential marker for cancer stem cells in human sarcoma.
PLoS One. 2012; 7(8):e43664-e43664
Doi: 10.1371/journal.pone.0043664
[OPEN ACCESS]
Web of Science
PubMed
FullText
FullText_MUG
- Führende Autor*innen der Med Uni Graz
- Lohberger Birgit
- Co-Autor*innen der Med Uni Graz
- Absenger-Novak Markus
- Eck Nicole
- Leithner Andreas
- Liegl-Atzwanger Bernadette
- Rinner Beate
- Altmetrics:
- Dimensions Citations:
- Plum Analytics:
- Scite (citation analytics):
- Abstract:
- Tumors contain a small population of cancer stem cells (CSC) proposed to be responsible for tumor maintenance and relapse. Aldehyde dehydrogenase 1 (ALDH1) activity has been used as a functional stem cell marker to isolate CSCs in different cancer types. This study used the Aldefluor® assay and fluorescence-activated cell sorting (FACS) analysis to isolate ALDH1(high) cells from five human sarcoma cell lines and one primary chordoma cell line. ALDH1(high) cells range from 0.3% (MUG-Chor1) to 4.1% (SW-1353) of gated cells. Immunohistochemical staining, analysis of the clone formation efficiency, and xCELLigence microelectronic sensor technology revealed that ALDH1(high) cells from all sarcoma cell lines have an increased proliferation rate compared to ALDH1(low) cells. By investigating of important regulators of stem cell biology, real-time RT-PCR data showed an increased expression of c-Myc, β-catenin, and SOX-2 in the ALDH1(high) population and a significant higher level of ABCG2. Statistical analysis of data demonstrated that ALDH1(high) cells of SW-982 and SW-1353 showed higher resistance to commonly used chemotherapeutic agents like doxorubicin, epirubicin, and cisplatin than ALDH1(low) cells. This study demonstrates that in different sarcoma cell lines, high ALDH1 activity can be used to identify a subpopulation of cells characterized by a significantly higher proliferation rate, increased colony forming, increased expression of ABC transporter genes and stemness markers compared to control cells. In addition, enhanced drug resistance was demonstrated.
- Find related publications in this database (using NLM MeSH Indexing)
- ATP-Binding Cassette Transporters - genetics
- Cell Line, Tumor -
- Cell Proliferation -
- Drug Resistance, Multiple -
- Gene Expression Regulation, Neoplastic -
- Humans -
- Isoenzymes - metabolism
- Neoplasm Proteins - genetics
- Neoplastic Stem Cells - enzymology
- Proto-Oncogene Proteins c-myc - genetics
- RNA, Messenger - genetics
- Retinal Dehydrogenase - metabolism
- SOXB1 Transcription Factors - genetics
- Sarcoma - pathology
- Tumor Markers, Biological - metabolism
- Up-Regulation -
- beta Catenin - genetics