RESUMO
IL-22 has been identified as a cancer-promoting cytokine that is secreted by infiltrating immune cells in several cancer models. We hypothesized that IL-22 regulation would occur at the interface between cancer cells and immune cells. Breast and lung cancer cells of murine and human origin induced IL-22 production from memory CD4+ T cells. In the present study, we found that IL-22 production in humans is dependent on activation of the NLRP3 inflammasome with the subsequent release of IL-1ß from both myeloid and T cells. IL-1 receptor signaling via the transcription factors AhR and RORγt in T cells was necessary and sufficient for IL-22 production. In these settings, IL-1 induced IL-22 production from a mixed T helper cell population comprised of Th1, Th17, and Th22 cells, which was abrogated by the addition of anakinra. We confirmed these findings in vitro and in vivo in two murine tumor models, in primary human breast and lung cancer cells, and in deposited expression data. Relevant to ongoing clinical trials in breast cancer, we demonstrate here that the IL-1 receptor antagonist anakinra abrogates IL-22 production and reduces tumor growth in a murine breast cancer model. Thus, we describe here a previously unrecognized mechanism by which cancer cells induce IL-22 production from memory CD4+ T cells via activation of the NLRP3 inflammasome and the release of IL-1ß to promote tumor growth. These findings may provide the basis for therapeutic interventions that affect IL-22 production by targeting IL-1 activity.
Assuntos
Linfócitos T CD4-Positivos/metabolismo , Interleucina-1beta/fisiologia , Interleucinas/biossíntese , Animais , Neoplasias da Mama/imunologia , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Carcinoma Pulmonar de Células não Pequenas/imunologia , Carcinoma Pulmonar de Células não Pequenas/metabolismo , Carcinoma Pulmonar de Células não Pequenas/patologia , Linhagem Celular Tumoral , Proliferação de Células , Meios de Cultivo Condicionados , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Inflamassomos/metabolismo , Interleucinas/metabolismo , Leucócitos Mononucleares/metabolismo , Neoplasias Pulmonares/imunologia , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patologia , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos C57BL , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Transplante de Neoplasias , Transdução de Sinais , Carga Tumoral , Interleucina 22RESUMO
Se describe el desarrollo de un cuestionario en castellano para la medición y descripción del dolor. Está construido con 44 palabras descriptoras, ordenadas en 2 grupos, 16 subgrupos y una escala de 4 categorías. Brinde información con valores numéricos sobre los aspectos sensoriales del dolor, sobre el sufrimiento del paciente y sobre la intensidad del dolor. Se obtienen 4 índices: sensorial (S), sufrimiento (s), intensidad (i) y evaluación total (T). Se pretende también obtener información sobre la presencia o no de disturbios psicológicos