Breast cancer complexity makes tailored therapy challenging

Targeted therapies tailored to a patient's tumor type will remain difficult.

May 17, 2012 at 4:41PM
(The Minnesota Star Tribune)
Pictured is a breast cancer cell, photographed by a scanning electron microscope, which produces a 3-dimensional images. This picture shows the overall shape of the cell's surface at a very high magnification. Cancer cells are best identified by internal details, but research with a scanning electron microscope can show how cells respond in changing environments and can show mapping distribution of binding sites of hormones and other biological molecules.
(National Cancer Institute/The Minnesota Star Tribune)

A new study of the protein-coding genes in 100 breast cancer tumors revealed vast differences among the cancers and highlights how complicated the disease really is.

"A sobering perspective on the complexity and diversity of the disease is emerging," researchers wrote in the online edition of the journal Nature, which is publishing a series of studies of the genetic changes in breast cancer.

The scientists, led by Michael Stratton at the Wellcome Trust Sanger Institute in Hinxton, England, found 73 different combinations of disease-causing mutations in the tumors, each involving up to six different genes from a set of 40 "driver genes."

Discovering that a single disease — breast cancer — can appear in so many different guises means that developing targeted therapies tailored to a patient's tumor type will remain a tall order in the near future.

Read more from Los Angeles Times.

Photo: A breast cancer cell, photographed by a scanning electron microscope. (National Cancer Institute)

about the writer

about the writer

Colleen Stoxen

Deputy Managing Editor for News Operations

Colleen Stoxen oversees hiring, intern programs, newsroom finances, news production and union relations. She has been with the Minnesota Star Tribune since 1987, after working as a copy editor and reporter at newspapers in California, Indiana and North Dakota.

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