Koichi Ikuta

14.4k citations

162 papers · 11.2k indexed · 6 hit papers · h-index 56

Impact in

Immunology top 0.1%
- Immune Cell Function and Interaction
- T-cell and B-cell Immunology
- Immunotherapy and Immune Responses
- IL-33, ST2, and ILC Pathways
- Immune Response and Inflammation
Hematology top 0.5%
- Hematopoietic Stem Cell Transplantation

Papers in

Immunology 106
- Immune Cell Function and Interaction 71
- T-cell and B-cell Immunology 64
- IL-33, ST2, and ILC Pathways 25
- Immunotherapy and Immune Responses 22
- Immune Response and Inflammation 13
Hematology 23
- Hematopoietic Stem Cell Transplantation 11

Co-authors: Tasuku Honjo Kazushige Maki Irving L. Weissman Naoshige Uchida Akihiro Shimba Jun‐ichi Miyazaki Shizue Tani‐ichi Sidonia Fagarasan
Journals: The Journal of Immunology (28 papers)International Immunology (14 papers)The Journal of Experimental Medicine (13 papers)Proceedings of the National Academy of Sciences (12 papers)Immunity (6 papers)
Partner nations: Japan United States Germany

In The Last Decade

Koichi Ikuta

157 papers receiving 11.0k citations

Hit Papers

6 papers align trajectories log scale

Inducible gene knockout of transcription factor recombination signal binding protein‐J reveals its essential role in T versus B lineage decision 2002 · 480 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2002 International Immunology
2001 Nature
1999 Nature Genetics
1997 Nature
1992 Proceedings of the National Academy of Sciences
1990 Cell

Peers

Countries citing papers authored by Koichi Ikuta

Since Specialization

Citations

This map shows the geographic impact of Koichi Ikuta'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 Koichi Ikuta with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koichi Ikuta more than expected).

Fields of papers citing papers by Koichi Ikuta

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koichi Ikuta. 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 Koichi Ikuta. The network helps show where Koichi Ikuta may publish in the future.

Co-authors

The 25 scholars most cited alongside Koichi Ikuta, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Koichi Ikuta Line = papers co-authored together Koichi Ikuta links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Stress-induced glucocorticoids enhance acute inflammation by promoting the differentiation of Th17 cells Cell Reports ·Akihiro Shimba, Guangwei Cui, Shinya Abe, Keiji Hirota, Eiji Miyauchi, 幸久福本, Shizue Tani‐ichi, П.А. Плетнёв, Masaki Tajima, pTushar J Palekarp, Masaki Miyazaki, Hans‐Reimer Rodewald, Hiroyuki Yoshitomi, Hideki Ueno, Hiroshi Ohno, Koichi Ikuta	2025	0
2	The transcription factor RORα is required for the development of type 1 innate lymphoid cells in adult bone marrow The Journal of Immunology ·Shinya Abe, Bob Allen, T. Asahi, П.А. Плетнёв, Shizue Tani‐ichi, Akihiro Shimba, Mario Ganau, Hitoshi Miyachi, Satsuki Kitano, Masaki Miyazaki, Hans‐Reimer Rodewald, Fumiko Toyoshima, Koichi Ikuta	2025	2
3	A Chimeric IL-7Rα/IL-2Rβ Receptor Promotes the Differentiation of T Cell Progenitors into B Cells and Type 2 Innate Lymphoid Cells The Journal of Immunology ·Akihiro Shimba, Shizue Tani‐ichi, Jan Hystad, Guangwei Cui, Satoru Munakata, Shinya Abe, Satsuki Kitano, Hitoshi Miyachi, Hiroshi Kawamoto, Koichi Ikuta	2024	2
4	A RORE-dependent Intronic Enhancer in the IL-7 Receptor-α Locus Controls Glucose Metabolism via Vγ4+ γδT17 Cells The Journal of Immunology ·Shizue Tani‐ichi, Kysara Aureldy Davonso Matualage, A. Yoshikawa, Hitomi Watanabe, Satsuki Kitano, Aki Ejima, Shinya Hatano, Hitoshi Miyachi, Guangwei Cui, Akihiro Shimba, Shinya Abe, Shohei Hori, Gen Kondoh, Sagar Sagar, Yasunobu Yoshikai, Koichi Ikuta	2024	1
5	CD45 alleviates airway inflammation and lung fibrosis by limiting expansion and activation of ILC2s Proceedings of the National Academy of Sciences ·Guangwei Cui, Akihiro Shimba, Jianshi Jin, Avadh Naresh Kushwaha, T. Asahi, Shinya Abe, Aki Ejima, Sandesh Poudel, Kıvanç Kamay, П.А. Плетнёв, Shizue Tani‐ichi, Ryo Yamada, Takashi Ebihara, Katsuyuki Shiroguchi, Koichi Ikuta	2023	9
6	Androgens Alleviate Allergic Airway Inflammation by Suppressing Cytokine Production in Th2 Cells The Journal of Immunology ·Aki Ejima, Shinya Abe, Akihiro Shimba, Susumu Satô, Takuya Uehata, Shizue Tani‐ichi, Satoru Munakata, Guangwei Cui, Osamu Takeuchi, Toyohiro Hirai, Shigeaki Kato, Koichi Ikuta	2022	22
7	High-throughput identification and quantification of single bacterial cells in the microbiota Nature Communications ·Jianshi Jin, Reiko Yamamoto, Tadashi Takeuchi, Guangwei Cui, Eiji Miyauchi, Avadh Naresh Kushwaha, Koichi Ikuta, Hiroshi Ohno, Katsuyuki Shiroguchi	2022	14
8	Cytotoxic innate lymphoid cells sense cancer cell-expressed interleukin-15 to suppress human and murine malignancies Nature Immunology ·Emily R. Kansler, Saïda Dadi, Chirag Krishna, Briana G. Nixon, Efstathios G. Stamatiades, Ming Liu, Fengshen Kuo, Zhanar Umurzakhova, Xian Zhang, Kristelle J. Capistrano, Kyle A. Blum, Kate Weiss, Ross M. Kedl, Guangwei Cui, Koichi Ikuta, Timothy A. Chan, Christina S. Leslie, A. Ari Hakimi, Ming O. Li	2022	55
9	Innate-like CD27+CD45RBhigh γδ T Cells Require TCR Signaling for Homeostasis in Peripheral Lymphoid Organs The Journal of Immunology ·Shizue Tani‐ichi, Keisuke Wagatsuma, Takahiro Hara, Guangwei Cui, Shinya Abe, Hitoshi Miyachi, Satsuki Kitano, Koichi Ikuta	2020	4
10	IL-7R–Dependent Phosphatidylinositol 3-Kinase Competes with the STAT5 Signal to Modulate T Cell Development and Homeostasis The Journal of Immunology ·Guangwei Cui, Akihiro Shimba, Guangyong Ma, Kazuhiko Takahara, Shizue Tani‐ichi, Yuanbo Zhu, T. Asahi, G.A. Agbeko, Hitoshi Miyachi, Satsuki Kitano, Takahiro Hara, Jun‐ichirou Yasunaga, N. Sherwood, Hisakata Yamada, Masao Matsuoka, Kohjiro Ueki, Yasunobu Yoshikai, Koichi Ikuta	2020	13
11	Glucocorticoids Drive Diurnal Oscillations in T Cell Distribution and Responses by Inducing Interleukin-7 Receptor and CXCR4 Immunity ·Akihiro Shimba, Guangwei Cui, Shizue Tani‐ichi, Makoto Ogawa, Shinya Abe, Stephen Winterton, Satsuki Kitano, Hitoshi Miyachi, Hisakata Yamada, Takahiro Hara, Yasunobu Yoshikai, Takashi Nagasawa, Günther Schütz, Koichi Ikuta	2018	128
12	Characterization of the IL-15 niche in primary and secondary lymphoid organs in vivo Proceedings of the National Academy of Sciences ·Guangwei Cui, Takahiro Hara, Szandor Simmons, Keisuke Wagatsuma, G.A. Agbeko, Hitoshi Miyachi, Satsuki Kitano, Masaru Ishii, Shizue Tani‐ichi, Koichi Ikuta	2014	133
13	A Genome-Wide Analysis Identifies a Notch–RBP-Jκ–IL-7Rα Axis That Controls IL-17–Producing γδ T Cell Homeostasis in Mice The Journal of Immunology ·Masataka Nakamura, Kensuke Shibata, Shinya Hatano, Tetsuya Sato, Yasuyuki Ohkawa, Hisakata Yamada, Koichi Ikuta, Yasunobu Yoshikai	2014	24
14	Regulatory Role of γδ T Cells in the Recruitment of CD4+ and CD8+ T Cells to Lung and Subsequent Pulmonary Fibrosis The Journal of Immunology ·Philip L. Simonian, Christina L. Roark, Fernando Diaz del Valle, Brent E. Palmer, Ivor S. Douglas, Koichi Ikuta, Willi K. Born, Rebecca L. O’Brien, Andrew P. Fontenot	2006	62
15	Transcriptional Regulation of the Mouse IL-7 Receptor α Promoter by Glucocorticoid Receptor The Journal of Immunology ·Hai‐Chon Lee, Hirofumi Shibata, 佐中真由実, Kazushige Maki, Koichi Ikuta	2005	55
16	Induction of Germline Transcription in the Human TCRγ Locus by STAT5 The Journal of Immunology ·Hai‐Chon Lee, Sang‐Kyu Ye, Tasuku Honjo, Koichi Ikuta	2001	21
17	Differential Roles of Cytokine Receptors in the Development of Epidermal γδ T Cells The Journal of Immunology ·Sang‐Kyu Ye, Kazushige Maki, Hai‐Chon Lee, Akiko Ito, Kazuhiro Kawai, Haruhiko Suzuki, Tak W. Mak, Yueh‐hsiu Chien, Tasuku Honjo, Koichi Ikuta	2001	32
18	Depletion of a γδ T Cell Subset Can Increase Host Resistance to a Bacterial Infection The Journal of Immunology ·Rebecca L. O’Brien, Xiang Yin, Sally A. Huber, Koichi Ikuta, Willi K. Born	2000	76
19	Increased Frequency of Surface IgA-Positive Plasma Cells in the Intestinal Lamina Propria and Decreased IgA Excretion in Hyper IgA (HIGA) Mice, a Murine Model of IgA Nephropathy with Hyperserum IgA The Journal of Immunology ·Tadashi Kamata, Fumiaki Nogaki, Sidonia Fagarasan, Toshio Sakiyama, Ikei S. Kobayashi, Shigeki Miyawaki, Koichi Ikuta, Eri Muso, Haruyoshi Yoshida, Shigetake Sasayama, Tasuku Honjo	2000	67
20	Inhibition of pancreatic β‐cell glucokinase by antisense RNA expression in transgenic mice: mouse strain‐dependent alteration of glucose tolerance FEBS Letters ·MARCUS GOUVEIA DOS SANTOS, Fumi Tashiro, Koichi Ikuta, M L GASIGLIA, Hideki Katagiri, Kouichi Inukai, Masayoshi Kikuchi, Y Yazaki, Y. Oka, Jun‐ichi Miyazaki	1995	18

About Koichi Ikuta

Koichi Ikuta is a scholar working on Immunology, Hematology, Oncology, Genetics and Behavioral Neuroscience, having authored 162 papers that have together received 11.2k indexed citations. Recurring topics across this work include Immune Cell Function and Interaction (71 papers), T-cell and B-cell Immunology (64 papers), IL-33, ST2, and ILC Pathways (25 papers), Immunotherapy and Immune Responses (22 papers), Cytokine Signaling Pathways and Interactions (19 papers), Immune Response and Inflammation (13 papers), Hematopoietic Stem Cell Transplantation (11 papers) and Asthma and respiratory diseases (11 papers). The work is most often cited by research in Immunology (6.6k citations), Hematology (1.6k citations), Genetics (669 citations), Immunology and Allergy (377 citations) and Oncology (1.7k citations). Koichi Ikuta has collaborated with scholars based in Japan, United States and Germany. Frequent co-authors include Tasuku Honjo, Kazushige Maki, Irving L. Weissman, Irving L. Weissman, Naoshige Uchida, Akihiro Shimba, Jun‐ichi Miyazaki, Shizue Tani‐ichi, Sidonia Fagarasan and Shinji Sunaga. Their work appears in journals such as The Journal of Immunology, International Immunology, The Journal of Experimental Medicine, Proceedings of the National Academy of Sciences and Immunity.

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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