History of Organ Transplantation: Why Early Attempts Failed and the 1954 Breakthrough

Transplantation was attempted since the early 1900s (kidney, thyroid, ovary), but consistent failure resulted from three barriers:

Pre-1954 Barriers

• Rejection: Host immune system recognized donor HLA antigens as foreign → destruction of graft. No effective immunosuppression existed.
• Immunologic ignorance: HLA system undiscovered (1958); no tissue typing, crossmatching, or understanding of tolerance mechanisms.
• Technical limitations: Vascular anastomosis techniques immature; poor organ preservation (no cold storage solutions); inadequate perioperative care.

The 1954 Breakthrough

• Joseph Murray, MD performed the first successful kidney transplant between identical twins (Ronald → Richard Herrick) at Peter Bent Brigham Hospital.
• Genetic identity = no rejection → no immunosuppression needed.
• Recipient lived 8 years; proved transplantation could work.

Immunosuppression Evolution

1. 1960s: Azathioprine + prednisone (first maintenance regimen)
2. 1970s: Antilymphocyte globulin (induction)
3. 1983: Cyclosporine (calcineurin inhibitor) — transformed outcomes
4. 1990s: Tacrolimus, mycophenolate mofetil
5. 2000s: mTOR inhibitors, biologics (basiliximab, alemtuzumab), costimulation blockers (belatacept)

Each advance expanded eligibility and improved graft survival.