1.   ...a special drug which stops rejection of transplanted organs.

2.   Cyclosporin A is a unique cyclic undecapeptide of fungal origin with potent immunosuppressive properties used to prevent the rejection of transplanted organs and to treat autoimmune diseases.

3.   Because these antigens differ in each individual, they tag a transplanted organ as foreign, prompting the immune system to attack and reject it.

4.   Being able to use those immune cells could also have implications for fighting infections, and for preventing rejection of transplanted organs and tissue.

5.   A second is the rising number of recipients of transplanted organs and tissues, who are at increased risk for lymphoma because of the anti-rejection drugs they take.

6.   But it also affected many people who took immunosuppressant drugs to prevent rejection of transplanted organs.

7.   Cyclosporine prevents the rejection of a transplanted organ by the body of the recipient.

8.   Doctors are divided about whether to treat patients with transplanted organs from executed prisoners.

9.   Drugs used to prevent rejection of transplanted organs weaken the immune system and make recipients more vulnerable to infections.

10.   Foreign, in this case, could mean anything from disease-causing bacteria to a life-saving transplanted organ.