RT Journal Article T1 Evolution of Metastasis Study Models toward Metastasis-On-A-Chip: The Ultimate Model? A1 Ruiz-Espigares, Jesús A1 Nieto, Daniel A1 Moroni, Lorenzo A1 Jiménez, Gema A1 Marchal, Juan Antonio K1 3D bioprinting K1 Cancer K1 Metastasis K1 Metastasis-on-a-chip K1 Tumor-on-a-chip K1 Bioimpresión K1 Impresión tridimensional K1 Microambiente tumoral AB For decades, several attempts have been made to obtain a mimetic model for the study of metastasis, the reason of most of deaths caused by cancer, in order to solve the unknown phenomena surrounding this disease. To better understand this cellular dissemination process, more realistic models are needed that are capable of faithfully recreating the entire and essential tumor microenvironment (TME). Thus, new tools known as tumor-on-a-chip and metastasis-on-a-chip have been recently proposed. These tools incorporate microfluidic systems and small culture chambers where TME can be faithfully modeled thanks to 3D bioprinting. In this work, a literature review has been developed about the different phases of metastasis, the remaining unknowns and the use of new models to study this disease. The aim is to provide a global vision of the current panorama and the great potential that these systems have for in vitro translational research on the molecular basis of the pathology. In addition, these models will allow progress toward a personalized medicine, generating chips from patient samples that mimic the original tumor and the metastatic process to perform a precise pharmacological screening by establishing the most appropriate treatment protocol. PB Wiley-VCH Verlag GmbH & Co. KGaA SN 1613-6810 YR 2021 FD 2021-03-11 LK http://hdl.handle.net/10668/4271 UL http://hdl.handle.net/10668/4271 LA en NO Ruiz-Espigares J, Nieto D, Moroni L, Jiménez G, Marchal JA. Evolution of Metastasis Study Models toward Metastasis-On-A-Chip: The Ultimate Model? Small. 2021 Apr;17(14):e2006009 DS RISalud RD Apr 11, 2025