Koji Iijima

5.5k total citations · 1 hit paper
75 papers, 3.1k citations indexed

About

Koji Iijima is a scholar working on Immunology, Physiology and Surgery. According to data from OpenAlex, Koji Iijima has authored 75 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Immunology, 29 papers in Physiology and 21 papers in Surgery. Recurrent topics in Koji Iijima's work include Asthma and respiratory diseases (28 papers), IL-33, ST2, and ILC Pathways (27 papers) and Eosinophilic Esophagitis (19 papers). Koji Iijima is often cited by papers focused on Asthma and respiratory diseases (28 papers), IL-33, ST2, and ILC Pathways (27 papers) and Eosinophilic Esophagitis (19 papers). Koji Iijima collaborates with scholars based in United States, Japan and United Kingdom. Koji Iijima's co-authors include Hirohito Kita, Takao Kobayashi, Kathleen R. Bartemes, Gail M. Kephart, Li Y. Drake, Scott M. O’Grady, Andrew N. J. McKenzie, W. Brett Cherry, Juhan Yoon and Hideaki Kouzaki and has published in prestigious journals such as Nature Immunology, The Journal of Immunology and PLoS ONE.

In The Last Decade

Koji Iijima

72 papers receiving 3.1k citations

Hit Papers

IL-33–Responsive Lineage−CD25+CD44hi Lymphoid Cells Media... 2011 2026 2016 2021 2011 100 200 300 400
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.

  1. IL-33–Responsive Lineage−CD25+CD44hi Lymphoid Cells Mediate Innate Type 2 Immunity and Allergic Inflammation in the Lungs
    2011 439 citations Koji Iijima, Takao Kobayashi et al. The Journal of Immunology profile →

Peers

Koji Iijima
Huabin Li China
Robert P. Schleimer United States
B. Boris Vargaftig France
Junichi Chihara Japan
Sylvie Marleau Canada
Nobuaki Miyahara Japan
Antoon J. M. van Oosterhout Netherlands
Élyse Y. Bissonnette Canada
Oliver Haworth United Kingdom
Nanda Vos Netherlands
Huabin Li China
Koji Iijima
Citations per year, relative to Koji Iijima Koji Iijima (= 1×) peers Huabin Li

Countries citing papers authored by Koji Iijima

Since Specialization
Citations

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

Fields of papers citing papers by Koji Iijima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Iijima

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Iijima. A scholar is included among the top collaborators of Koji Iijima 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 Koji Iijima. Koji Iijima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Tojima, Ichiro, et al.. (2025). Allergen-induced activation of epithelial P2Y2 receptors promotes adenosine triphosphate exocytosis and type 2 immunity in airways. Journal of Allergy and Clinical Immunology. 155(5). 1607–1622.
2.
Kobayashi, Takao, et al.. (2023). Lung-resident CD69+ST2+ TH2 cells mediate long-term type 2 memory to inhaled antigen in mice. Journal of Allergy and Clinical Immunology. 152(1). 167–181.e6. 18 indexed citations
3.
4.
Iijima, Koji, Peter J. Maniak, Takao Kobayashi, et al.. (2023). Cholinergic sensing of allergen exposure by airway epithelium promotes type 2 immunity in the lungs. Journal of Allergy and Clinical Immunology. 153(3). 793–808.e2. 6 indexed citations
5.
Iijima, Koji, et al.. (2022). Blocking the inhibitory receptor programmed cell death 1 prevents allergic immune response and anaphylaxis in mice. Journal of Allergy and Clinical Immunology. 150(1). 178–191.e9. 8 indexed citations
6.
Kobayashi, Takao, Koji Iijima, Alexander L. Dent, & Hirohito Kita. (2016). Follicular helper T cells mediate IgE antibody response to airborne allergens. Journal of Allergy and Clinical Immunology. 139(1). 300–313.e7. 139 indexed citations
7.
Kobayashi, Takao, Koji Iijima, James L. Checkel, & Hirohito Kita. (2013). IL-1 Family Cytokines Drive Th2 and Th17 Cells to Innocuous Airborne Antigens. American Journal of Respiratory Cell and Molecular Biology. 49(6). 989–998. 29 indexed citations
8.
Kobayashi, Takao, Koji Iijima, Suresh Radhakrishnan, et al.. (2009). Asthma-Related Environmental Fungus, Alternaria , Activates Dendritic Cells and Produces Potent Th2 Adjuvant Activity. The Journal of Immunology. 182(4). 2502–2510. 89 indexed citations
9.
Shimizu, Takashi, Koji Iijima, Yoshinori Ogawa, et al.. (2007). Gene injections of vascular endothelial growth factor and growth differentiation factor-9 stimulate ovarian follicular development in immature female rats. Fertility and Sterility. 89(5). 1563–1570. 12 indexed citations
10.
Rajagopalan, Govindarajan, Moon M. Sen, Manisha Singh, et al.. (2006). INTRANASAL EXPOSURE TO STAPHYLOCOCCAL ENTEROTOXIN B ELICITS AN ACUTE SYSTEMIC INFLAMMATORY RESPONSE. Shock. 25(6). 647–656. 49 indexed citations
11.
Kobayashi, Takao, Koji Iijima, & Hirohito Kita. (2003). Marked Airway Eosinophilia Prevents Development of Airway Hyper-responsiveness During an Allergic Response in IL-5 Transgenic Mice. The Journal of Immunology. 170(11). 5756–5763. 50 indexed citations
12.
Chapoval, Svetlana P., Koji Iijima, Eric Marietta, et al.. (2002). Allergic Inflammatory Response to Short Ragweed Allergenic Extract in HLA-DQ Transgenic Mice Lacking CD4 Gene. The Journal of Immunology. 168(2). 890–899. 14 indexed citations
13.
Song, Qinghua, et al.. (2001). Effects of Ninjin-yoei-to (Rensheng-Yangrong-Tang), a Kampo medicine, on brain monoamine and nerve growth factor contents in mice with olfactory bulb lesions. 18(2). 64–70. 5 indexed citations
14.
Song, Qinghua, Kazuo Toriizuka, Koji Iijima, & Takeshi Yabe. (2000). Effects of Hokoei-to (Pu-gong-ying-tang), Kampo formula, on estradiol and progesterone contents in brain regions and serum in ovariectomized mice.. 17(5). 180–185.
15.
16.
Song, Qinghua, Takao Kobayashi, Koji Iijima, Tie Hong, & Jong‐Chol Cyong. (2000). Hepatoprotective effects of Inula britannica on hepatic injury in mice. Phytotherapy Research. 14(3). 180–186. 29 indexed citations
17.
Okumura, Masae, et al.. (1999). EFFECTS OF ACUPUNCTURE ON PERIPHERAL T LYMPHOCYTE SUBPOPULATION AND AMOUNTS OF CEREBRAL CATECHOLAMINES IN MICE. Acupuncture & Electro-Therapeutics Research. 24(2). 127–139. 12 indexed citations
18.
Iijima, Koji. (1996). Effects of Toki-shakuyaku-san on the expression of Fc receptors and CR3 on macrophages in mice. 13. 132–142.
19.
Iijima, Koji, et al.. (1995). Preventive Effect of Taraxasteryl Acetate fromInula britannicasubsp.japonicaon Experimental Hepatitisin vivo. Planta Medica. 61(1). 50–53. 26 indexed citations
20.
Iijima, Koji, et al.. (1993). Effects of Sino-Japanese herbs in the family Labiatae on the hepatic drug metabolizing enzymes and lipid peroxidation in rats.. Folia Pharmacologica Japonica. 101(5). 327–336. 2 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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