Chinese Journal of Tissue Engineering Research ›› 2021, Vol. 25 ›› Issue (8): 1249-1255.doi: 10.3969/j.issn.2095-4344.3073

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Research hotspots of organoid models in recent 10 years: a search in domestic and foreign databases

Zhang Xiumei1, 2, Zhai Yunkai3, Zhao Jie4, Zhao Meng2   

  1. 1Institute of Scientific and Technical Information of China, Beijing 100038, China; 2WanFang Data Co., Ltd., Beijing 100038, China; 3School of Management Engineering, Zhengzhou University, Zhengzhou 450001, Henan Province, China; 4The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
  • Received:2020-06-12 Revised:2020-06-18 Accepted:2020-07-08 Online:2021-03-18 Published:2020-12-14
  • Contact: Zhang Xiumei, Institute of Scientific and Technical Information of China, Beijing 100038, China; WanFang Data Co., Ltd., Beijing 100038, China
  • About author:Zhang Xiumei, Institute of Scientific and Technical Information of China, Beijing 100038, China; WanFang Data Co., Ltd., Beijing 100038, China
  • Supported by:
    the National Key R & D Program of China, No. 2017YFC0909900

Abstract: BACKGROUND: Organoid models can partially restore the tissue and molecular characteristics of cells in the body, which is a preclinical model with good potential. Compared with precise and regenerative medicine methods, organoids with tissue organ functions can simulate body organs to the greatest extent. Moreover, organoid drug sensitivity data is more accurate than whole-genome sequencing. The technology for organoids can be combined with in vitro gene editing technology to achieve a genetic modification at organ level.   
OBJECTIVE: To summarize and analyze the research hotpots of organoid models in domestic and foreign databases in the past 10 years. 
METHODS: A computer search of WanFang, Web of Science, Chinese Clinical Trial Registry, and SooPAT was performed for articles regarding organoids in the past 10 years, and the research hotspots of organoid models were analyzed and concluded.  
RESULTS AND CONCLUSION: (1) Retrieval results of WanFang database: A total of 187 articles were included. In 2019, Chinese research on organoids showed an explosive growth. Among them, there were more studies on intestinal organoid models. The main application areas included precision medicine, tumor research and personalized medicine. (2) Retrieval results of the Web of Science Core Collection: A total of 2 450 articles were included. Twenty highly cited articles were analyzed using Histcite software. Among them, five classic original articles of organoids were screened out, and introduced intestinal organoids, pluripotent stem cell-derived three-dimensional brain organoids, prostate cancer organoids cultured from biopsy specimens and circulating tumor cells for a long time, kidney organoids containing nephrons, and three-dimensional organoid models of human stomach tissue, which are the pioneers in various fields and lay the foundation for future research on organoids. (3) Retrieval results of Chinese Clinical Trial Registry and There were 13 study protocols related to organoid research in the Chinese Clinical Trial Registry and 23 in the Research on clinical application of organoids in the United States is more extensive and develops earlier, but there are mostly cohort studies and single-arm trials. In recent years, China has achieved some results in the field of clinical organoid research, and two high-profile randomized controlled trials are underway. (4) Retrieval results of SooPAT Chinese patent database: There were 55 authorized patents, mainly involving the new culture method of 3D brain organoids, the research and development of high-throughput 3D cell, tissue-like and organoid dynamic culture systems. At present, researchers have successfully constructed a variety of organoid models, such as intestine, brain, kidney and various cancer tissues. However, due to insufficient evidence of clinical randomized controlled trials, the clinical applicability remains to be explored. Tumor organoids that are directly generated by tumor tissues of cancer patients in vitro can be used to analyze potential drug targets, screen anti-cancer drugs and develop new anti-tumor drugs, which will be the main research directions in the field of organoids in the future.

Key words: stem cells, organoid, in vitro, 3D culture, model, tumor, precision medicine, tumor research, personalized medicine

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