Treatment of Incurable Blood Cancer on the Anvil

by Kathy Jones on  July 18, 2010 at 2:14 PM Cancer News   - G J E 4
 Treatment of Incurable Blood Cancer on the Anvil
A conceptually new model for the development and progression of multiple myeloma has been presented by researchers from Uppsala University. Myeloma is one of the most common blood cancers, and at present considered to be incurable.

Using large cohorts of myeloma patients, the researchers have identified a profile of genes that are silenced by epigenetic mechanisms in the malignant plasma cell.

"This silencing may lead to the uncontrolled growth of the malignant cells," said Helena Jernberg Wiklund, one of the investigators in the study.

The silenced gene profile was compared and contrasted to normal plasma cells, which are highly specialised and for which growth and lifetime is tightly controlled.

The silenced genes have a common denominator in being targets and controlled by the Polycomb repressor complex (PcG).

This complex has previously been implicated in self-renewal and division of normal embryonic stem cells.

In the study, the researchers found that inhibitors of PcG also could decrease the growth of tumour cells in an animal model of myeloma.

"A new strategy for treating multiple myeloma could be to develop drugs that are targeted to the PcG complex, leading to reactivation of the silenced gene profile", said Helena Jernberg Wiklund.

The study is published in the latest edition of the on-line journal PLoS ONE.

Source: ANI

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