Keiko Hatanaka

1.6k total citations · 1 hit paper
24 papers, 1.3k citations indexed

About

Keiko Hatanaka is a scholar working on Organic Chemistry, Immunology and Genetics. According to data from OpenAlex, Keiko Hatanaka has authored 24 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Organic Chemistry, 6 papers in Immunology and 5 papers in Genetics. Recurrent topics in Keiko Hatanaka's work include Asymmetric Synthesis and Catalysis (9 papers), Mesenchymal stem cell research (5 papers) and Pharmacological Effects of Natural Compounds (4 papers). Keiko Hatanaka is often cited by papers focused on Asymmetric Synthesis and Catalysis (9 papers), Mesenchymal stem cell research (5 papers) and Pharmacological Effects of Natural Compounds (4 papers). Keiko Hatanaka collaborates with scholars based in Japan, United States and Slovakia. Keiko Hatanaka's co-authors include Katsutoshi Ozaki, Iekuni Oh, Akiko Meguro, Kazuya Sato, Keiya Ozawa, Kazuo Muroi, Tadashi Nagai, Susumu Saito, Matthew M. Weiss and Lance A. Pfeifer and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Blood.

In The Last Decade

Keiko Hatanaka

23 papers receiving 1.3k 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.

Nitric oxide plays a critical role in suppression of T-cell proliferation by mesenchymal stem cells

2006 757 citations Kazuya Sato, Katsutoshi Ozaki et al. Blood profile →

Peers

Keiko Hatanaka

GENET

OC

MB

IMMUN

SURGE

Samuel Seoane Spain

Daniela Lötsch Austria

Veronica Albertini Switzerland

Jon Smythe United Kingdom

Annette Eckardt United States

Antti Kivelä Finland

James B. Springer United States

Christophe Orvain France

Vikas Madan Singapore

Wells S. Brown United States

Samuel Seoane Spain

Keiko Hatanaka

157 ×0.2

GENET

74 ×0.2

OC

492 ×1.7

MB

135 ×0.5

IMMUN

73 ×0.3

SURGE

Citations per year, relative to Keiko Hatanaka Keiko Hatanaka (= 1×) peers Samuel Seoane

Countries citing papers authored by Keiko Hatanaka

Since Specialization

Citations

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

Fields of papers citing papers by Keiko Hatanaka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keiko Hatanaka

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

1.

Nakajima, Yutaka, Naohiro Aoyama, Hiroshi Sasaki, et al.. (2016). Design, synthesis, and evaluation of 4,6-diaminonicotinamide derivatives as novel and potent immunomodulators targeting JAK3. Bioorganic & Medicinal Chemistry. 24(19). 4711–4722. 7 indexed citations

2.

Nakajima, Yutaka, Takayuki Inoue, Kazuo Nakai, et al.. (2015). Synthesis and evaluation of novel 1H-pyrrolo[2,3-b]pyridine-5-carboxamide derivatives as potent and orally efficacious immunomodulators targeting JAK3. Bioorganic & Medicinal Chemistry. 23(15). 4871–4883. 20 indexed citations

3.

Yamagishi, Hiroaki, Shohei Shirakami, Yutaka Nakajima, et al.. (2015). Discovery of 3,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridin-2(1H)-one derivatives as novel JAK inhibitors. Bioorganic & Medicinal Chemistry. 23(15). 4846–4859. 17 indexed citations

4.

Nakajima, Yutaka, Takashi Tojo, Masataka Morita, et al.. (2015). Synthesis and Evaluation of 1<i>H</i>-Pyrrolo[2,3-<i>b</i>]pyridine Derivatives as Novel Immunomodulators Targeting Janus Kinase 3. Chemical and Pharmaceutical Bulletin. 63(5). 341–353. 16 indexed citations

5.

Meguro, Akiko, Katsutoshi Ozaki, Keiko Hatanaka, et al.. (2011). Lack of IL-21 signal attenuates graft-versus-leukemia effect in the absence of CD8 T-cells. Bone Marrow Transplantation. 46(12). 1557–1565. 10 indexed citations

6.

Tatara, Raine, Katsutoshi Ozaki, Yuji Kikuchi, et al.. (2010). Mesenchymal stromal cells inhibit Th17 but not regulatory T-cell differentiation. Cytotherapy. 13(6). 686–694. 75 indexed citations

7.

Oh, Iekuni, Katsutoshi Ozaki, Akiko Meguro, et al.. (2010). Altered Effector CD4+ T Cell Function in IL-21R−/− CD4+ T Cell-Mediated Graft-Versus-Host Disease. The Journal of Immunology. 185(3). 1920–1926. 11 indexed citations

8.

Meguro, Akiko, Katsutoshi Ozaki, Iekuni Oh, et al.. (2009). IL-21 is critical for GVHD in a mouse model. Bone Marrow Transplantation. 45(4). 723–729. 22 indexed citations

9.

Tatara, Raine, Katsutoshi Ozaki, Keiko Hatanaka, et al.. (2009). Mesenchymal Stem Cells Inhibit Th17 Differentiation through PGE2 Production.. Blood. 114(22). 3633–3633. 1 indexed citations

10.

Oh, Iekuni, Katsutoshi Ozaki, Kazuya Sato, et al.. (2007). Interferon-γ and NF-κB mediate nitric oxide production by mesenchymal stromal cells. Biochemical and Biophysical Research Communications. 355(4). 956–962. 32 indexed citations

11.

Ozaki, Katsutoshi, Keiko Hatanaka, Hideaki Nakajima, et al.. (2006). Overexpression of Interleukin 21 Induces Expansion of Hematopoietic Progenitor Cells. International Journal of Hematology. 84(3). 224–230. 19 indexed citations

12.

Sato, Kazuya, Katsutoshi Ozaki, Iekuni Oh, et al.. (2006). Nitric oxide plays a critical role in suppression of T-cell proliferation by mesenchymal stem cells. Blood. 109(1). 228–234. 757 indexed citations breakdown →

13.

Sato, Kazuya, Katsutoshi Ozaki, Iekuni Oh, et al.. (2006). Mesenchymal Stem Cells Produce Nitric Oxide, a Key Molecule for T Cell Suppression, upon Interaction with Activated T Cells.. Blood. 108(11). 2556–2556. 1 indexed citations

14.

Dounay, Amy B., Keiko Hatanaka, Jeremy J. Kodanko, et al.. (2003). Catalytic Asymmetric Synthesis of Quaternary Carbons Bearing Two Aryl Substituents. Enantioselective Synthesis of 3-Alkyl-3-Aryl Oxindoles by Catalytic Asymmetric Intramolecular Heck Reactions. Journal of the American Chemical Society. 125(20). 6261–6271. 176 indexed citations

15.

Saito, Susumu, Keiko Hatanaka, & Hisashi Yamamoto. (2001). Asymmetric Mannich-type reactions with a chiral acetate: effect of Lewis acid on activation of aldimine. Tetrahedron. 57(5). 875–887. 16 indexed citations

16.

Akiyama, Masashi, et al.. (2001). Infiltration of Activated Eosinophils in the Skin Lesions of Atopic Dermatitis. Acta Dermato Venereologica. 81(1). 56–57. 2 indexed citations

17.

Saito, Susumu, Keiko Hatanaka, Taichi Kano, & Hisashi Yamamoto. (1998). Diastereoselective Aldol Reaction with an Acetate Enolate: 2,6-Bis(2-isopropylphenyl)-3,5-dimethylphenol as an Extremely Effective Chiral Auxiliary. Angewandte Chemie International Edition. 37(24). 3378–3381. 28 indexed citations

18.

Saito, Susumu, Keiko Hatanaka, Taichi Kano, & Hisashi Yamamoto. (1998). Diastereoselective Aldol Reaction with an Acetate Enolate: 2,6-Bis(2-isopropylphenyl)-3,5-dimethylphenol as an Extremely Effective Chiral Auxiliary. Angewandte Chemie International Edition. 37(24). 3378–3381.

19.

Saito, Susumu, Keiko Hatanaka, Taichi Kano, & Hisashi Yamamoto. (1998). Diastereoselektive Aldolreaktion mit einem Acetat-Enolat: 2,6-Bis(2-isopropylphenyl)-3,5-dimethylphenol als äußerst effektives chirales Auxiliar. Angewandte Chemie. 110(24). 3579–3582. 4 indexed citations

20.

Yamaguchi, Seiji, et al.. (1997). Ring Expansion of Isopropenylcyclopropanes to Dihydromethyloxepins. Bulletin of the Chemical Society of Japan. 70(9). 2215–2219. 5 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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