RESUMO
Cancer is the second-leading cause of death in the world, accounting for one out of six deaths. Consequently, there is an urgent need for new and more effective therapeutic options as well as drug screening methods. Immortal, "stable" cancer cell lines have been employed since the past century to assess drug response but face several disadvantages. They often accumulate new genetic aberrations due to long-term culture and lack the indisputable heterogeneity of solid tumors, therefore, compromising the recapitulation of molecular features from parental tumors. Primary cancer cells have emerged as an attractive alternative to commercial cell lines since they can preserve such properties more closely. Here, we provide an overview of the basic concepts underlying generation and characterization of primary cell cultures from tumor samples. We emphasize the advantages and disadvantages of using these types of cancer cell cultures, and we make a comparison with other types of cultures used for personalized therapy. Finally, we consider the use of primary cancer cell cultures in personalized therapy as a means to improve drug response prediction and therapeutic outcomes.
Assuntos
Técnicas de Cultura de Células , Neoplasias/terapia , Medicina de Precisão/métodos , Humanos , Neoplasias/patologia , Células Tumorais CultivadasRESUMO
ABSTRACT Cancer is the second-leading cause of death in the world, accounting for one out of six deaths. Consequently, there is an urgent need for new and more effective therapeutic options as well as drug screening methods. Immortal, stable cancer cell lines have been employed since the past century to assess drug response but face several disadvantages. They often accumulate new genetic aberrations due to long-term culture and lack the indisputable heterogeneity of solid tumors, therefore, compromising the recapitulation of molecular features from parental tumors. Primary cancer cells have emerged as an attractive alternative to commercial cell lines since they can preserve such properties more closely. Here, we provide an overview of the basic concepts underlying generation and characterization of primary cell cultures from tumor samples. We emphasize the advantages and disadvantages of using these types of cancer cell cultures, and we make a comparison with other types of cultures used for personalized therapy. Finally, we consider the use of primary cancer cell cultures in personalized therapy as a means to improve drug response prediction and therapeutic outcomes.
Assuntos
Humanos , Técnicas de Cultura de Células , Medicina de Precisão/métodos , Neoplasias/terapia , Células Tumorais Cultivadas , Neoplasias/patologiaRESUMO
En este trabajo se describe la caracterización morfológica, cromosómica y presencia de desmosomas de una línea celular (CaLo) derivada de una biopsia de cáncer cervicouterino. Nuestros resultados indican que CaLo posee una morfología típica de células epiteliales, una aneuploidia cromosómica con número modal de 58 y presencia de desmosomas de bida a la positividad en membrana para la presencia de desmogleína-1. A partir de CaLo también se aisló un clon llamado KaLo. esta clonación nos proporciona una evidencia del origen maligno de estas células. Ambos tipos celulares fueron cultivados en presencia de algunas citocinas recientemente empleadas en ciertos protocolos clínicos (TNF-Ó, IL-2. IL-3 GM-CSF, M-CSF e IFN-ç). Nuestros resultados demuestran un efecto inhibidor de la proliferación por parte de TNF-Ó, IL-3 y GM-CSF, mientras que con M-CSF e IFN-ç no se detectó efecto. Por otra parte, obresvamos un incremento en la proliferación celular en presencia de la IL-2. Estos resultados dan indicios de que el TNF-Ó, la IL-3 y el M-CSF pueden tener posibilidades de aplicación clínica por sus propiedades inhibidoras; mientras que ponen en evidencia el riesgo de utilizar in vivo la IL-2, pues activa la proliferación de células tumorales de cérvix, tal como se ha informado para algunos carcinomas de cabeza y cuello