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New treatment option for advanced prostate cancer

Date:
August 14, 2011
Source:
Lund University
Summary:
Prostate cancer that has become resistant to hormone treatment and that does not respond to radiation or chemotherapy requires new methods of treatment. By attacking stem cell-like cells in prostate cancer, researchers are working on a project to develop a new treatment option.

Exploring the tumour biology of prostate cancer, the research group have now observed that the protein STAT3 is active in the stem cell-like cells.
Credit: Image courtesy of Lund University

Prostate cancer that has become resistant to hormone treatment and that does not respond to radiation or chemotherapy requires new methods of treatment. By attacking stem cell-like cells in prostate cancer, researchers at Lund University are working on a project to develop a new treatment option.

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An interdisciplinary project is underway between two research groups, in which senior researcher Rebecka Hellsten and Professor Anders Bjartell at the Faculty of Medicine's division for Urological Cancer Research, Skεne University Hospital in Malmφ, and Professor Olov Sterner and Assistant Professor Martin Johansson at the Lund University division of Organic Chemistry recently published their latest research findings in the scientific online journal PLoS ONE.

"Prostatic tumours are thought to consist only of about 0.1 per cent cancer stem cells, but if you are not successful in eradicating that tumour cell population, there is a risk of subsequent uncontrolled growth of the tumour. The cancer stem cells are often unresponsive to both hormonal treatment and to chemotherapy, so it is essential to develop a direct treatment towards all types of cancer cells," says Anders Bjartell.

Exploring the tumour biology of prostate cancer, the research group have now observed that the protein STAT3 is active in the stem cell-like cells. In their previous studies, they have proven that the natural compound galiellalactone affects STAT3 and has inhibitory effects on the growth of prostate cancer.

Through the development of new specific STAT3-inhibitors with galiellalactone as a model, the researchers hope to develop targeted therapies that attack the stem cell-like cancer cells in prostate cancer and prevent the tumour from growing and spreading.


Story Source:

The above story is based on materials provided by Lund University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Rebecka Hellsten, Martin Johansson, Anna Dahlman, Olov Sterner, Anders Bjartell. Galiellalactone Inhibits Stem Cell-Like ALDH-Positive Prostate Cancer Cells. PLoS ONE, 2011; 6 (7): e22118 DOI: 10.1371/journal.pone.0022118

Cite This Page:

Lund University. "New treatment option for advanced prostate cancer." ScienceDaily. ScienceDaily, 14 August 2011. <www.sciencedaily.com/releases/2011/08/110812091811.htm>.
Lund University. (2011, August 14). New treatment option for advanced prostate cancer. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2011/08/110812091811.htm
Lund University. "New treatment option for advanced prostate cancer." ScienceDaily. www.sciencedaily.com/releases/2011/08/110812091811.htm (accessed November 26, 2014).

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