Koichi Araki

17.2k total citations · 4 hit papers
115 papers, 8.2k citations indexed

About

Koichi Araki is a scholar working on Immunology, Infectious Diseases and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Koichi Araki has authored 115 papers receiving a total of 8.2k indexed citations (citations by other indexed papers that have themselves been cited), including 52 papers in Immunology, 32 papers in Infectious Diseases and 19 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Koichi Araki's work include Immune Cell Function and Interaction (36 papers), Viral Infections and Vectors (27 papers) and T-cell and B-cell Immunology (20 papers). Koichi Araki is often cited by papers focused on Immune Cell Function and Interaction (36 papers), Viral Infections and Vectors (27 papers) and T-cell and B-cell Immunology (20 papers). Koichi Araki collaborates with scholars based in Japan, United States and China. Koichi Araki's co-authors include Rafi Ahmed, Gordon J. Freeman, Christian P. Larsen, Shivaprakash Gangappa, Virginia Shaffer, Alexandra P. Turner, Martin F. Bachmann, Erin E. West, Bogumila T. Konieczny and Antonio Lanzavecchia and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Koichi Araki

112 papers receiving 8.1k 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.

mTOR regulates memory CD8 T-cell differentiation

2009 1.2k citations Koichi Araki, Rafi Ahmed et al. profile →
Rescue of exhausted CD8 T cells by PD-1–targeted therapies is CD28-dependent

2017 724 citations Alice O. Kamphorst, Andreas Wieland et al. Science profile →
Cooperation of Tim-3 and PD-1 in CD8 T-cell exhaustion during chronic viral infection

2010 653 citations Erin E. West, Koichi Araki et al. profile →
CD8 T Cell Exhaustion in Chronic Infection and Cancer: Opportunities for Interventions

2018 446 citations Masao Hashimoto, Alice O. Kamphorst et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Koichi Araki Japan	39	5.1k	2.5k	1.7k	1.3k	1.0k	115	8.2k
Georg Kochs Germany	61	6.3k 1.2×	1.2k 0.5×	4.8k 2.8×	3.1k 2.4×	4.1k 3.9×	147	13.6k
Fatah Kashanchi United States	59	3.0k 0.6×	1.2k 0.5×	6.1k 3.5×	2.4k 1.8×	1.2k 1.2×	257	10.6k
Nancy C. Reich United States	52	3.5k 0.7×	3.9k 1.6×	3.5k 2.0×	789 0.6×	772 0.7×	93	7.7k
Philip I. Marcus United States	41	1.4k 0.3×	869 0.3×	2.6k 1.5×	878 0.7×	1.7k 1.7×	115	7.3k
Ulrich Kalinke Germany	58	8.2k 1.6×	2.1k 0.8×	3.8k 2.2×	2.1k 1.6×	2.3k 2.2×	241	14.1k
Jonathan R. Lamb United Kingdom	55	5.2k 1.0×	638 0.3×	2.2k 1.3×	936 0.7×	1.2k 1.2×	233	10.2k
Paul Jolicoeur Canada	50	2.6k 0.5×	1.3k 0.5×	3.3k 1.9×	1.4k 1.1×	910 0.9×	174	7.6k
Hideyuki Yanai Japan	36	9.1k 1.8×	2.4k 0.9×	3.5k 2.0×	1.2k 1.0×	2.1k 2.0×	69	12.3k
Deborah J. Lenschow United States	41	9.3k 1.8×	2.4k 1.0×	2.3k 1.3×	1.6k 1.2×	1.4k 1.3×	66	13.4k
Zhi‐Ming Zheng United States	46	735 0.1×	1.6k 0.6×	4.0k 2.3×	732 0.6×	2.6k 2.5×	149	7.1k

Countries citing papers authored by Koichi Araki

Since Specialization

Citations

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

Fields of papers citing papers by Koichi Araki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Araki

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Araki. A scholar is included among the top collaborators of Koichi Araki 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 Koichi Araki. Koichi Araki 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

Oshikiri, Tomoya, Naoyoshi Kubota, Takahiro Tezuka, et al.. (2025). Influence of Compactness and Crystallinity on Hole Transfer Ability of Nickel Oxide Layer in Modal Coupling Regime. Chemistry - A European Journal. 31(39). e202501332–e202501332.

Liu, Bingxin, Yamato Sajiki, Yongxian Hu, et al.. (2025). PBAE-PEG-based lipid nanoparticles for lung cell-specific gene delivery. Molecular Therapy. 33(3). 1154–1165. 8 indexed citations

Chen, Chao, Hong Zheng, Edwin M. Horwitz, et al.. (2023). Mitochondrial metabolic flexibility is critical for CD8 ⁺ T cell antitumor immunity. Science Advances. 9(49). eadf9522–eadf9522. 26 indexed citations

Ando, Satomi, Yamato Sajiki, Rajesh M. Valanparambil, et al.. (2022). mTOR regulates T cell exhaustion and PD-1–targeted immunotherapy response during chronic viral infection. Journal of Clinical Investigation. 133(2). 51 indexed citations

Ando, Satomi & Koichi Araki. (2022). CD8 T-cell heterogeneity during T-cell exhaustion and PD-1-targeted immunotherapy. International Immunology. 34(11). 571–577. 16 indexed citations

Kamphorst, Alice O., Andreas Wieland, Tahseen H. Nasti, et al.. (2017). Rescue of exhausted CD8 T cells by PD-1–targeted therapies is CD28-dependent. Science. 355(6332). 1423–1427. 724 indexed citations breakdown →

Ray, John, Matthew Staron, Justin A. Shyer, et al.. (2015). The Interleukin-2-mTORc1 Kinase Axis Defines the Signaling, Differentiation, and Metabolism of T Helper 1 and Follicular B Helper T Cells. Immunity. 43(4). 690–702. 245 indexed citations

Duraiswamy, Jaikumar, Chris Ibegbu, David Masopust, et al.. (2011). Phenotype, Function, and Gene Expression Profiles of Programmed Death-1hi CD8 T Cells in Healthy Human Adults. The Journal of Immunology. 186(7). 4200–4212. 183 indexed citations

Penaloza‐MacMaster, Pablo, Koichi Araki, Alice O. Kamphorst, et al.. (2011). FoxP3+ CD4+ cells promote CD8 T cell exhaustion during chronic infection (105.5). The Journal of Immunology. 186(1_Supplement). 105.5–105.5. 1 indexed citations

10.

Araki, Koichi, Ben Youngblood, & Rafi Ahmed. (2010). The role of mTOR in memory CD8⁺ T‐cell differentiation. Immunological Reviews. 235(1). 234–243. 146 indexed citations

11.

Wang, Gong & Koichi Araki. (2008). An Unsupervised Opinion Mining Approach for Japanese Weblog Reputation Information Using an Improved SO-PMI Algorithm. IEICE Transactions on Information and Systems. E91-D(4). 1032–1041. 4 indexed citations

12.

Lee, Byoung‐Hee, Kumiko Yoshimatsu, Koichi Araki, et al.. (2006). A pseudotype vesicular stomatitis virus containing Hantaan virus envelope glycoproteins G1 and G2 as an alternative to hantavirus vaccine in mice. Vaccine. 24(15). 2928–2934. 24 indexed citations

13.

Lee, Byoung‐Hee, Kumiko Yoshimatsu, Akihiko Maeda, et al.. (2003). Association of the nucleocapsid protein of the Seoul and Hantaan hantaviruses with small ubiquitin-like modifier-1-related molecules. Virus Research. 98(1). 83–91. 45 indexed citations

14.

Nakasone, Tadashi, et al.. (1992). Immune responses and serum levels of cytokines in adult T‐cell leukemia patients and human T‐cell leukemia virus type‐I carriers. European Journal Of Haematology. 48(2). 99–104. 4 indexed citations

15.

Imai, Kohsuke, T Nakano, Satoshi Motoya, et al.. (1992). Increased circulating intercellular adhesion molecule-1 in adult T cell leukemia patients.. PubMed. 56(3). 239–40. 5 indexed citations

16.

Tamori, S, et al.. (1988). Increase in cytoplasmic free calcium concentration initiated by T3 antigen stimulation is imparied in adult T-cell leukemia cells. Leukemia Research. 12(4). 357–363. 3 indexed citations

17.

Hashimoto, Hironobu, et al.. (1982). Synthesis and biological activities of 4-(d-alanylamino)-2-amino-2,3,4-trideoxy-l-threo-pentose (3-deoxyprumycin). Carbohydrate Research. 99(1). 59–69. 10 indexed citations

18.

Hashimoto, Hironobu, et al.. (1981). . NIPPON KAGAKU KAISHI. 805–812. 2 indexed citations

19.

Araki, Koichi, et al.. (1978). Chemoimmunotherapy of acute myelogenous leukemia with BCG-cell wall skeleton (CWS).. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 41(6). 1171–7. 1 indexed citations

20.

Tahara, T., et al.. (1978). ChemInform Abstract: SYNTHESES AND STRUCTURE‐ACTIVITY RELATIONSHIPS OF 6‐ARYL‐4H‐S‐TRIAZOLO(3,4‐C)THIENO(2,3‐E)(1,4)DIAZEPINES. Chemischer Informationsdienst. 9(44). 1153–8. 9 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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