This invention relates to three-dimensional synthetic and semi-synthetic compositions having biological activity, and to the uses thereof in the treatment and/or prophylaxis of various disorders in mammalian patients. More particularly it relates to preparations and uses of synthetic and semi-synthetic bodies, such as liposomes, which after introduction into the body of a patient, produce beneficial anti-inflammatory, organ protective and immune regulatory effects. The invention also relates to treatments and compositions for alleviating inflammatory and autoimmune diseases and their symptoms.