Ryuichi Okamoto

7.0k total citations · 1 hit paper
171 papers, 5.0k citations indexed

About

Ryuichi Okamoto is a scholar working on Oncology, Genetics and Immunology. According to data from OpenAlex, Ryuichi Okamoto has authored 171 papers receiving a total of 5.0k indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Oncology, 53 papers in Genetics and 52 papers in Immunology. Recurrent topics in Ryuichi Okamoto's work include Immune Cell Function and Interaction (40 papers), Cancer Cells and Metastasis (31 papers) and Inflammatory Bowel Disease (30 papers). Ryuichi Okamoto is often cited by papers focused on Immune Cell Function and Interaction (40 papers), Cancer Cells and Metastasis (31 papers) and Inflammatory Bowel Disease (30 papers). Ryuichi Okamoto collaborates with scholars based in Japan, United States and Germany. Ryuichi Okamoto's co-authors include Mamoru Watanabe, Kiichiro Tsuchiya, Tetsuya Nakamura, Takanori Kanai∥, Yasuhiro Nemoto, Takashi Nagaishi, Shigeru Oshima, Teruji Totsuka, Shiro Yui and Tomohiro Mizutani and has published in prestigious journals such as Nature Medicine, Nature Communications and SHILAP Revista de lepidopterología.

In The Last Decade

Ryuichi Okamoto

160 papers receiving 4.9k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Functional engraftment of colon epithelium expanded in vitro from a single adult Lgr5+ stem cell

2012 627 citations Shiro Yui, Tetsuya Nakamura et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ryuichi Okamoto Japan	39	1.8k	1.5k	1.4k	1.3k	829	171	5.0k
Kiichiro Tsuchiya Japan	35	1.7k 0.9×	1.2k 0.8×	1.0k 0.7×	911 0.7×	678 0.8×	150	4.2k
Rainer Blasczyk Germany	37	1.9k 1.0×	1.0k 0.7×	2.6k 1.9×	997 0.8×	602 0.7×	314	6.3k
Manon E. Wildenberg Netherlands	31	1.1k 0.6×	1.1k 0.7×	2.1k 1.5×	1.5k 1.2×	943 1.1×	103	5.1k
Clemens Neufert Germany	27	2.0k 1.1×	1.1k 0.8×	3.0k 2.2×	1.7k 1.3×	957 1.2×	73	6.2k
Ping Jin United States	36	2.0k 1.1×	974 0.7×	1.1k 0.8×	397 0.3×	392 0.5×	125	4.4k
Tuo Zhang United States	32	2.1k 1.2×	1.3k 0.9×	864 0.6×	410 0.3×	491 0.6×	111	4.2k
Hiroyuki Miyoshi Japan	39	5.0k 2.7×	2.3k 1.5×	1.4k 1.0×	1.3k 1.0×	1.1k 1.3×	89	9.1k
Anna Mondino Italy	39	2.2k 1.2×	1.9k 1.3×	3.8k 2.7×	558 0.4×	327 0.4×	109	6.6k
Stefania Vetrano Italy	33	1.1k 0.6×	788 0.5×	1.2k 0.8×	1.1k 0.9×	807 1.0×	82	3.8k
Anthony Rongvaux United States	32	2.7k 1.5×	1.2k 0.8×	3.2k 2.3×	593 0.5×	321 0.4×	51	6.5k

Countries citing papers authored by Ryuichi Okamoto

Since Specialization

Citations

This map shows the geographic impact of Ryuichi Okamoto's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryuichi Okamoto with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryuichi Okamoto more than expected).

Fields of papers citing papers by Ryuichi Okamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryuichi Okamoto. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryuichi Okamoto. The network helps show where Ryuichi Okamoto may publish in the future.

Co-authorship network of co-authors of Ryuichi Okamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuichi Okamoto. A scholar is included among the top collaborators of Ryuichi Okamoto based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryuichi Okamoto. Ryuichi Okamoto is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Honda, Shinya, Satoko Arakawa, Satoru Torii, et al.. (2025). Optineurin is an adaptor protein for ubiquitinated substrates in Golgi membrane-associated degradation. Nature Communications. 16(1). 8966–8966.

Tamura, Akiko, Hiromichi Shimizu, Toshimitsu Fujii, et al.. (2025). Comparative short-term efficacy of upadacitinib versus tofacitinib for ulcerative colitis: a 24-week real-world study in Japan. Intestinal Research. 24(1). 95–102. 1 indexed citations

Kobayashi, Masanori, Go Ito, Ami Kawamoto, et al.. (2024). Evaluating endoscopic ultrasound-guided tissue acquisition for diagnosis of small pancreatic neuroendocrine neoplasms. SHILAP Revista de lepidopterología. 12(11). E1379–E1385. 1 indexed citations

Shimizu, Hiromichi, Shuji Hibiya, Ami Kawamoto, et al.. (2024). Long-term efficacy and safety of tofacitinib in patients with ulcerative colitis: 3-year results from a real-world study. Intestinal Research. 22(3). 369–377. 3 indexed citations

Kano, Yoshihito, Yosuke Yoneyama, Satoshi Watanabe, et al.. (2024). Discovery of non-genomic drivers of YAP signaling modulating the cell plasticity in CRC tumor lines. iScience. 27(3). 109247–109247. 3 indexed citations

Miyoshi, Masato, Sei Kakinuma, Ayako Sato, et al.. (2024). A20 in hepatic stellate cells suppresses chronic hepatitis by inhibiting DCLK1 – JNK pathway‐dependent chemokines. The FASEB Journal. 38(13). e23757–e23757. 2 indexed citations

Kobayashi, Masanori, et al.. (2023). The Jolting Method: An Efficient Method for Extracting Multiple Common Bile Duct Stones Completely in a Single Procedure. SHILAP Revista de lepidopterología. 14(4). 243–244.

Watanabe, Satoshi, Sakura Kirino, Sayaka Nagata, et al.. (2023). Organoids transplantation as a new modality to design epithelial signature to create a membrane-protective sulfomucin-enriched segment. Journal of Gastroenterology. 58(4). 379–393. 8 indexed citations

Watanabe, Satoshi, Ryuichi Okamoto, Tetsuya Nakamura, et al.. (2022). Transplantation of intestinal organoids into a mouse model of colitis. Nature Protocols. 17(3). 649–671. 85 indexed citations

10.

Okamoto, Ryuichi, Tomohiro Mizutani, & Hiromichi Shimizu. (2022). Development and Application of Regenerative Medicine in Inflammatory Bowel Disease. Digestion. 104(1). 24–29. 14 indexed citations

11.

Takenaka, K, Kohei Suzuki, Toshimitsu Fujii, et al.. (2021). Pancolonic endoscopic and histologic evaluation for relapse prediction in patients with ulcerative colitis in clinical remission. Alimentary Pharmacology & Therapeutics. 53(8). 900–907. 14 indexed citations

12.

Takenaka, K, Ami Kawamoto, Shuji Hibiya, et al.. (2021). Higher concentrations of cytokine blockers are needed to obtain small bowel mucosal healing during maintenance therapy in Crohn's disease. Alimentary Pharmacology & Therapeutics. 54(8). 1052–1060. 18 indexed citations

13.

Sato, Taku, Jumpei Asano, Masayuki Fujii, et al.. (2020). Regulated IFN signalling preserves the stemness of intestinal stem cells by restricting differentiation into secretory-cell lineages. Nature Cell Biology. 22(8). 919–926. 25 indexed citations

14.

Watanabe, Sho, Shuji Hibiya, Yoshihito Kano, et al.. (2020). Intestinal phenotype is maintained by Atoh1 in the cancer region of intraductal papillary mucinous neoplasm. Cancer Science. 112(2). 932–944. 3 indexed citations

15.

Maeyashiki, Chiaki, Yoichi Nibe, Akiko Tamura, et al.. (2020). Receptor‐Interacting Protein Kinase 3 (RIPK3) inhibits autophagic flux during necroptosis in intestinal epithelial cells. FEBS Letters. 594(10). 1586–1595. 10 indexed citations

16.

Watanabe, Sho, Kiichiro Tsuchiya, Shuji Hibiya, et al.. (2019). TP53 Mutation by CRISPR System Enhances the Malignant Potential of Colon Cancer. Molecular Cancer Research. 17(7). 1459–1467. 18 indexed citations

17.

Nemoto, Yasuhiro, Shigeru Oshima, Takashi Nagaishi, et al.. (2019). High-fat diet-derived free fatty acids impair the intestinal immune system and increase sensitivity to intestinal epithelial damage. Biochemical and Biophysical Research Communications. 522(4). 971–977. 87 indexed citations

18.

Kawamoto, Ami, Sayaka Nagata, Junichi Takahashi, et al.. (2018). Ubiquitin D is Upregulated by Synergy of Notch Signalling and TNF-α in the Inflamed Intestinal Epithelia of IBD Patients. Journal of Crohn s and Colitis. 13(4). 495–509. 29 indexed citations

19.

Nakata, Toru, Hiromichi Shimizu, Sayaka Nagata, et al.. (2016). Indispensable role of Notch ligand-dependent signaling in the proliferation and stem cell niche maintenance of APC-deficient intestinal tumors. Biochemical and Biophysical Research Communications. 482(4). 1296–1303. 11 indexed citations

20.

Zeißig, Sebastian, Arthur Kaser, Torsten Olszak, et al.. (2009). Animal Models of IBD 1. Mucosal Immunology. 2. 11–11. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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