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Am J Clin Pathol ; 153(4): 513-523, 2020 03 09.
Artigo em Inglês | MEDLINE | ID: mdl-31895425

RESUMO

OBJECTIVES: Novel immunotherapeutic options for refractory metastatic cancer patients include adoptive cell therapies such as tumor infiltrating lymphocytes (TILs). This study characterizes the clinicopathologic findings in a cohort of TIL specimens. METHODS: Patients with metastatic malignancy who were eligible had TILs from their metastases grown and expanded and then sent to pathology. RESULTS: A total of 11 TIL specimens (10 melanoma, 1 adenocarcinoma) from patients enrolled in an experimental clinical trial were reviewed. All specimens showed more than 200 lymphoid cells, stained positive for lymphoid markers confirming an activated cytotoxic T-cell immunophenotype, and morphologically showed an intermediate-sized population with immature chromatin and frequent mitoses. Six cases (55%) showed large cells with nucleomegaly and prominent nucleoli. CONCLUSIONS: This report is the first describing cytopathologic findings of autologous TIL therapy including adequacy guidelines and expected cytomorphologic and immunophenotypic findings. To meet this novel clinical demand, a predefined cytology protocol to rapidly process and interpret these specimens needs to be established.


Assuntos
Adenocarcinoma/terapia , Imunoterapia Adotiva/métodos , Linfócitos do Interstício Tumoral/patologia , Melanoma/terapia , Adenocarcinoma/patologia , Adulto , Feminino , Citometria de Fluxo , Humanos , Imunofenotipagem , Masculino , Melanoma/patologia , Pessoa de Meia-Idade
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