While I don't really buy into the autoimmune theory as it is usually described, I thought this was interesting. Glucosamine may have some effect on T-Cells.
http://www.naturalhealth365.com/natural_cures/0985_glucosamine_autoimmune_disease.html
Dan
http://www.naturalhealth365.com/natural_cures/0985_glucosamine_autoimmune_disease.html
Dan