A investigação sobre a imunoterapia contra o cancro está a evoluir para estratégias mais dirigidas
As descobertas na investigação da via imunitária ajudaram a refinar as estratégias de imunoterapia contra o cancro no sentido de as tornar mais dirigidas.1,2
A história da investigação da imunidade contra o cancro1-7
Explorando uma abordagem mais personalizada na investigação da imunoterapia do cancro
Com a evolução para estratégias mais dirigidas, a investigação foca-se na identificação de fatores preditivos da resposta imunitária individual através de características tumorais específicas e fatores no microambiente tumoral, tais como
- A presença de células imunitárias infiltradas no tumor8
- A capacidade das células imunitárias infiltrarem o microambiente tumoral pode constituir um critério chave para uma diversidade de estratégias dirigidas ao sistema imunitário e pode indicar quais os tumores com maior probabilidade de resposta
- Os padrões de expressão dos genes nos tumores, particularmente os envolvidos na resposta imunitária9
- Expressão de proteínas na superfície celular
- expressão de PD-L1 nas células tumorais e nas células imunitárias que infiltram o tumor10,11
- expressão de MUC1 nas células tumorais12
Referências
- Chen DS, Mellman I. Oncology meets immunology: the cancer-immunity cycle. Immunity. 2013;39:1-10. Artigo Completo
- Mellman I, Coukos G, Dranoff G. Cancer immunotherapy comes of age. Nature. 2011;480:480-489. Artigo Completo
- Lesterhuis WJ, Haanen JB, Punt CJ. Cancer immunotherapy—revisited. Nat Rev Drug Discov. 2011;10:591-600. Artigo Completo
- National Institutes of Health ClinicalTrials.gov. https://clinicaltrials.gov/ct2/show/NCT01494688. Accessed March 4, 2015.
- National Institutes of Health ClinicalTrials.gov. https://clinicaltrials.gov/ct2/show/NCT00739609. Accessed March 4, 2015.
- Glienke W, Esser R, Priesner C, et al. Advantages and applications of CAR-expressing natural killer cells. Front Pharmacol. 2015;6:21. doi: 10.3389/fphar.2015.00021. Artigo Completo
- National Institutes of Health ClinicalTrials.gov. https://clinicaltrials.gov/ct2/show/NCT01303705. Accessed March 4, 2015.
- Gajewski TF, Schreiber H, Fu YX. Innate and adaptive immune cells in the tumour microenvironment. Nat Immunol. 2013;14:1014-1022.Artigo Completo
- Ji RR, Chasalow SD, Wang L, et al. An immune-active tumour microenvironment favors clinical response to ipilimumab. Cancer Immunol Immunother. 2012;61:1019-1031. Artigo Completo
- Taube JM, Anders RA, Young GD, et al. Colocalization of inflammatory response with B7-h1 expression in human melanocytic lesions supports an adaptive resistance mechanism of immune escape. Sci Transl Med. 2012;4:127ra37. Artigo Completo
- Chen DS, Irving BA, Hodi FS. Molecular pathways: next-generation immunotherapy—inhibiting programmed death-ligand 1 and programmed death-1. Clin Cancer Res. 2012;18:6580-6587. Artigo Completo
- Stojnev S, Ristic-Petrovic A, Velickovic LJ, et al. Prognostic significance of mucin expression in urothelial bladder cancer. Int J Clin Exp Pathol. 2014;7:4945-4958. Artigo Completo
- Pardoll DM. The blockade of immune checkpoints in cancer immunotherapy. Nat Rev Cancer. 2012;12:252-264. Artigo Completo
- Taylor RC, Patel A, Panageas KS, Busam KJ, Brady MS. Tumour-infiltrating lymphocytes predict sentinel lymph node positivity in patients with cutaneous melanoma. J Clin Oncol. 2007;25:869-875. Artigo Completo
- Hiraoka K, Miyamoto M, Cho Y, et al. Concurrent infiltration by CD8+ T cells and CD4+ T cells is a favourable prognostic factor in non-small-cell lung carcinoma. Br J Cancer. 2006;94:275-280. Artigo Completo
- Sharma P, Shen Y, Wen S, et al. CD8 tumour-infiltrating lymphocytes are predictive of survival in muscle-invasive urothelial carcinoma.Proc Natl Acad Sci U S A. 2007;104:3967-3972. Artigo Completo
- Okita Y, Tanaka H, Ohira M, et al. Role of tumour-infiltrating CD11b+ antigen-presenting cells in the progression of gastric cancer. J Surg Res. 2014;186:192-200. Artigo Completo
- Matsuda S, Yamane T, Hamaji M. CD4- and TCRalphabeta-positive T lymphocytes predominantly infiltrated into well-moderately differentiated colon adenocarcinoma tissues. Jpn J Clin Oncol. 1998;28:97-103. Abstract
- Gao Q, Wang XY, Qiu SJ, et al. Overexpression of PD-L1 significantly associates with tumour aggressiveness and postoperative recurrence in human hepatocellular carcinoma. Clin Cancer Res. 2009;15:971-979. Artigo Completo
- Badoual C, Hans S, Rodriguez J, et al. Prognostic value of tumour-infiltrating CD4+ T-cell subpopulations in head and neck cancers. Clin Cancer Res. 2006;12:465-472. Artigo Completo
- Thompson RH, Dong H, Lohse CM, et al. PD-1 is expressed by tumour-infiltrating immune cells and is associated with poor outcome for patients with renal cell carcinoma. Clin Cancer Res. 2007;13:1757-1761. Artigo Completo
- Liyanage UK, Moore TT, Joo HG, et al. Prevalence of regulatory T cells is increased in peripheral blood and tumour microenvironment of patients with pancreas or breast adenocarcinoma. J lmmunol. 2002;169:2756-2761. Artigo Completo
- Noonan K, Matsui W, Serafini P, et al. Activated marrow-infiltrating lymphocytes effectively target plasma cells and their clonogenic precursors. Cancer Res. 2005;65:2026-2034. Artigo Completo
- Chen BJ, Chapuy B, Ouyang J, et al. PD-L1 expression is characteristic of a subset of aggressive B-cell lymphomas and virus-associated malignancies. Clin Cancer Res. 2013;19:3462-3473. Abstract