**7. The use of biobanks for organoid research**

The progression on the development of organoids from ASCs paved the way for the establishment of the biobank for cancer [18]. The cancer biobanks provide cancer organoid cultures of numerous cancer subtypes [79]. Based on an investigation of numerous organoids using biobanks it was concluded that the dependency of organoids on ligands varies from one type of organoids to other types of organoids [59]. The inception of biobanks of organoids for cancer paved the way for the up-gradation of anti-cancer drugs with a wide range of testing based on requirements by cancer patients [21]. In a study done by Smalley and coworkers in 2018 [80], CD 34 biomarker has been utilized effectively in cancer treatment and the outcome has been studied in detail.
