Patient‐derived organoid culture in epithelial ovarian cancers—Techniques, applications, and future perspectives

Abstract

Epithelial ovarian cancer (EOC) is a heterogeneous disease composed of different cell types with different molecular aberrations. Traditional cell lines and mice models cannot recapitulate the human tumor biology and tumor microenvironment (TME). Patient‐derived organoids (PDOs) are freshly derived from patients' tissues and are then cultured with extracellular matrix and conditioned medium. The high concordance of epigenetic, genomic, and proteomic landscapes between the parental tumors and PDOs suggests that PDOs can provide more reliable results in studying cancer biology, allowing high throughput drug screening, and identifying their associated signaling pathways and resistance mechanisms. However, despite having a heterogeneity of cells in PDOs, some cells in TME will be lost during the culture process. Next‐generation organoids have been developed to circumvent some of the limitations. Genetically engineered organoids involving targeted gene editing can facilitate the understanding of tumorigenesis and drug response. Co‐culture systems where PDOs are cultured with different cell components like immune cells can allow research using immunotherapy which is otherwise impossible in conventional cell lines. In this review, the limitations of the traditional in vitro and in vivo assays, the use of PDOs, the challenges including some tips and tricks of PDO generation in EOC, and the future perspectives, will be discussed.

Biomimetic Scaffolds—A Novel Approach to Three Dimensional Cell Culture Techniques for Potential Implementation in Tissue Engineering

“…The name ‘organoid’ accurately describes a miniaturised model of an entire organ. Organoids are commonly used in cancer research, with patient-derived organoids (PDOs) proving to be a valuable tool in drug testing and the study of cancer biology [ 56 , 57 , 58 ]. Additionally, organoids are utilised as models for a range of other diseases, including lung diseases [ 59 ], liver cirrhosis [ 60 ], inflammatory bowel disease [ 61 ], and brain disorders [ 62 ].…”