New strategy prevents rheumatoid arthritis in mice

Eureka Alert reported the results of a striking finding. Dana-Farber Cancer Institute scientists have demonstrated a new strategy for treating autoimmune disease that successfully blocked the development of rheumatoid arthritis in a mouse model. They say it holds promise for improved treatment of arthritis and other autoimmune disorders in people.

The scientists report in the Journal of Clinical Investigation that infusing a highly specific type of cell that regulates immune responses into arthritis-prone mice shut down the cascade of inflammation that damages tissues and joints.

The method worked best when the infusions of CD8+ Treg cells were given at the same time that the animals were injected with a protein that triggered the arthritis-causing autoimmune reaction. “We found we could almost completely inhibit the disease in this setting,” said Harvey Cantor, MD, chair of the Department of Cancer Immunology and AIDS at Dana-Farber and the study’s senior author.

Too bad we couldn’t predict wrheumatoid-arthritishen people were going to be exposed to whatever triggers RA and give them this preventative at that moment.

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