Immunotherapy is currently regarded as the most promising treatment to fight against cancer. This is particularly true in the treatment of chronic lymphocytic leukemia, an indolent neoplastic disease of B-lymphocytes which eventually causes the immune system's failure. In this and other areas of cancer research, mathematical modeling is pointed out as a prominent tool to analyze theoretical and practical issues. Its lack in studies of chemoimmunotherapy of chronic lymphocytic leukemia is what motivates us to come up with a simple ordinary differential equation model. It is based on ideas of de Pillis & Radunskaya and on standard pharmacokinetics-pharmacodynamics assumptions. In order to check the positivity of the state variables, we first establish an invariant region where these time-dependent variables remain positive. Afterwards, the action of the immune system, as well as the chemoimmunotherapeutic role in promoting cancer cure are investigated by means of numerical simulations and the classical linear stability analysis. The role of adoptive cellular immunotherapy is also addressed. Our overall conclusion is that chemoimmunotherapeutic protocols can be effective in treating chronic lymphocytic leukemia provided that chemotherapy is not a limiting factor to the immunotherapy efficacy.
Resumo: O presente estudo tem como objetivo mapear a produção do conhecimento sobre a modalidade basquetebol publicada em periódicos brasileiros, no período entre os anos de 2010 e 2015. O levantamento apontou que a produção sobre o basquetebol somou 66 artigos, distribuídos em 18 periódicos científicos, sendo o maior número sobre treinamento esportivo. No que tange a classificação por estratos do Qualis, é predominante os que estão classificados no estrato B1. Também foi observada uma tendência na produção na forma de uma rede de colaboração de autores. A título de conclusão o estudo aponta que a produção sobre o basquetebol apesar de pequena quantitativamente e com predominância na temática de treinamento apresenta-se diversificada epistemologicamente.
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