(a) Immuno-suppressive drug therapy may be used to promote acceptance of the graft.
(b) Use of antibiotics and interferons in case infection occurs in the body of the recipient when immune system is suppressed because of immuno-suppressive drug therapy.
Explanation:
Immuno-supressive drug therapy involves administration of drugs to restrict inhibition of T cells.
Following drugs may be used in such therapy:
(1) Glucocorticoids and corticosteroids: These drugs are helpful in down regulation of GPCR signaling as a result of which prostaglandins are not synthesized.
(2) Cyclosporin - A: It leads to the blockage of activation of T lymphocytes.
(3) Rapamycin: It leads to the inhibition of cellular translation as a result of which immune cells do not get activated.
The two types of succession are primary and secondary. <span> Primary succession is the series of changes that occur on an entirely new habitat which has never been colonized before, while secondary occurs on places that have already been colonized before.</span>