NCIt definition : Tumor infiltrating lymphocytes (TIL) harvested directly from infiltrate of a patient's
melanoma and cultured with interleukin-2 to expand the TIL cell population. Tumor
infiltrating lymphocytes have specific activity against the melanoma from which they
are derived. Introducing these melanoma tumor-reactive autologous tumor infiltrating
lymphocytes back into the same patient may enhance a cytotoxic T-cell-mediated immune
response against the melanoma cancer cells.;