Dasatinib and Doxorubicin Treatment of Sarcoma Initiating Cells: A Possible New Treatment Strategy

Joint Authors

Aggerholm-Pedersen, Ninna
Demuth, Christina
Meldgaard, Peter
Sandahl Sorensen, Boe
Kassem, Moustapha
Safwat, Akmal A.

Source

Stem Cells International

Issue

Vol. 2016, Issue 2016 (31 Dec. 2015), pp.1-8, 8 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2015-12-15

Country of Publication

Egypt

No. of Pages

8

Abstract EN

Background.

One of the major challenges affecting sarcoma treatment outcome, particularly that of metastatic disease, is resistance to chemotherapy.

Cancer-initiating cells are considered a major contributor to this resistance.

Methods.

An immortalised nontransformed human stromal (mesenchymal) stem cell line hMSC-TERT4 and a transformed cell line hMSC-TERT20-CE8, known to form sarcoma-like tumours when implanted in immune-deficient mice, were used as models.

Receptor tyrosine kinase (RTK) activation was analysed by RTK arrays and cellular viability after tyrosine kinases inhibitor (TKI) treatment with or without doxorubicin was assessed by MTS assay.

Results.

Initial results showed that the hMSC-TERT4 was more doxorubicin-sensitive while hMSC-TERT20-CE8 was less doxorubicin-sensitive evidenced by monitoring cell viability in the presence of doxorubicin at different doses.

The epidermal growth factor receptor (EGFR) was activated in both cell lines.

However hMSC-TERT20-CE8 exhibited significantly higher expression of the EGFR ligands.

EGFR inhibitors such as erlotinib and afatinib alone or in combination with doxorubicin failed to further decrease cell viability of hMSC-TERT20-CE8.

However, inhibition with the TKI dasatinib in combination with doxorubicin decreased cell viability of the hMSC-TERT20-CE8 cell line.

Conclusion.

Our results demonstrate that dasatinib, but not EGFR-directed treatment, can decrease cell viability of stromal cancer stem cells less sensitive to doxorubicin.

American Psychological Association (APA)

Aggerholm-Pedersen, Ninna& Demuth, Christina& Safwat, Akmal A.& Meldgaard, Peter& Kassem, Moustapha& Sandahl Sorensen, Boe. 2015. Dasatinib and Doxorubicin Treatment of Sarcoma Initiating Cells: A Possible New Treatment Strategy. Stem Cells International،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1117439

Modern Language Association (MLA)

Aggerholm-Pedersen, Ninna…[et al.]. Dasatinib and Doxorubicin Treatment of Sarcoma Initiating Cells: A Possible New Treatment Strategy. Stem Cells International Vol. 2016, no. 2016 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1117439

American Medical Association (AMA)

Aggerholm-Pedersen, Ninna& Demuth, Christina& Safwat, Akmal A.& Meldgaard, Peter& Kassem, Moustapha& Sandahl Sorensen, Boe. Dasatinib and Doxorubicin Treatment of Sarcoma Initiating Cells: A Possible New Treatment Strategy. Stem Cells International. 2015. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1117439

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1117439