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  • Title: HLA association with response and toxicity in melanoma patients treated with interleukin 2-based immunotherapy.
    Author: Marincola FM, Venzon D, White D, Rubin JT, Lotze MT, Simonis TB, Balkissoon J, Rosenberg SA, Parkinson DR.
    Journal: Cancer Res; 1992 Dec 01; 52(23):6561-6. PubMed ID: 1423301.
    Abstract:
    Peripheral blood lymphocytes from 146 patients with metastatic melanoma undergoing interleukin 2 (IL-2)-based immunotherapy were characterized for HLA A, B, Cw, DR, DQw, and DRw specificities. Patients had been enrolled into sequential treatment protocols with either IL-2 alone (28) or in combination with tumor-infiltrating lymphocytes (TILs) (86), alpha-interferon (26), lymphokine-activated killer cells (16), radiation therapy (7), cyclophosphamide (3), tumor necrosis factor (1), and interleukin 4 (1) for a total of 168 courses of therapy. HLA phenotype was then correlated with response rate and toxicity to IL-2. We noted: (a) a significant difference in the frequency of A11 (20.5% versus 10.2%; P < 0.05) allele between melanoma patients and the North American Caucasian population; (b) a significantly higher frequency of A11 phenotype among responders (40.5%) than in the melanoma patient population (20.5%; P < 0.01), which was even more obvious among patients responding to TIL therapy (47.4% versus 22.1%; P < 0.05); within TIL patients, responders also had an increased frequency of A19 (42.1% versus 25.6%; P < 0.05); (c) a correlation between the number of TILs received and response rate (P < 0.005); and (d) an association between DR4 haplotype and decreased tolerance to IL-2 among the patients receiving TILs (P = 0.01). These results suggest that, in melanoma patients, some HLA Class I specificities may predict for a greater likelihood of response to IL-2-based therapy, while HLA Class II phenotype correlates with tolerance to the combination of TIL and IL-2 therapy.
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