Allstate Corp.’s voluntary benefits unit is helping to pay for research for an experimental vaccine against breast cancer.

The Allstate Workplace Division, a subsidiary of Allstate, Northbrook, Ill., has given $220,426 through Gateway for Cancer Research, Schaumburg, Ill., for a clinical trial of a vaccine that may fight Stage IV breast cancer.

The vaccine potentially could enhance the survival chances of women with late-stage breast cancer and of people at high risk of being diagnosed with the disease, Allstate says.

The trial will evaluate a new mammaglobin-A DNA vaccine to be used in efforts to treat the disease.

Mammaglobin-A, a protein found almost exclusively in breast tissue, is present at much higher levels in breast cancer and is considered a reliable marker for the disease.

William Gillanders of Washington University is in charge of the research.