World's Best Scientists 2026 revealed!
Sidonia Fagarasan

Sidonia Fagarasan

D-Index & Metrics

Immunology

D-Index
56
Citations
23872
World Ranking
3663
National Ranking
145

Sidonia Fagarasan publication distribution in Immunology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Immunology in 2026. The highlighted bar marks where Sidonia Fagarasan sits on this spectrum.

62–71 publications: 9 scientists 72–81 publications: 23 scientists 82–91 publications: 40 scientists 92–101 publications: 72 scientists 102–111 publications: 86 scientists 112–121 publications: 108 scientists 122–131 publications: 150 scientists 132–141 publications: 160 scientists 142–151 publications: 159 scientists 152–161 publications: 189 scientists 162–171 publications: 166 scientists 172–181 publications: 181 scientists 182–191 publications: 188 scientists 192–201 publications: 187 scientists 202–211 publications: 178 scientists 212–221 publications: 158 scientists 222–231 publications: 168 scientists 232–241 publications: 159 scientists 242–251 publications: 160 scientists 252–261 publications: 148 scientists 262–271 publications: 116 scientists 272–281 publications: 125 scientists 282–291 publications: 115 scientists 292–301 publications: 111 scientists 302–311 publications: 95 scientists 312–321 publications: 97 scientists 322–331 publications: 97 scientists 332–341 publications: 99 scientists 342–351 publications: 96 scientists 352–361 publications: 68 scientists 362–371 publications: 76 scientists 372–381 publications: 71 scientists 382–391 publications: 71 scientists 392–401 publications: 62 scientists 402–411 publications: 54 scientists 412–421 publications: 41 scientists 422–431 publications: 63 scientists 432–441 publications: 53 scientists 442–451 publications: 31 scientists 452–461 publications: 42 scientists 462–471 publications: 40 scientists 472–481 publications: 29 scientists 482–491 publications: 34 scientists 492–501 publications: 30 scientists 502–511 publications: 23 scientists 512–521 publications: 41 scientists 522–531 publications: 29 scientists 532–541 publications: 28 scientists 542–551 publications: 16 scientists 552–561 publications: 18 scientists 562–571 publications: 18 scientists 572–581 publications: 17 scientists 582–591 publications: 17 scientists 592–601 publications: 17 scientists 602–611 publications: 19 scientists 612–621 publications: 13 scientists 622–631 publications: 12 scientists 632–641 publications: 11 scientists 642–651 publications: 16 scientists 652–661 publications: 9 scientists 662–671 publications: 5 scientists 672–681 publications: 13 scientists 682–691 publications: 12 scientists 692–701 publications: 6 scientists 702–711 publications: 6 scientists 712–721 publications: 9 scientists 722–731 publications: 9 scientists 732–741 publications: 6 scientists 742–751 publications: 11 scientists 752–761 publications: 10 scientists 762–771 publications: 7 scientists 772–781 publications: 12 scientists 782–791 publications: 7 scientists 792–801 publications: 5 scientists 802–806 publications: 1 scientists 807+ publications: 100 scientists
62 publications 807+

This scientist: 85 publications — 1st percentile

1% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 807 publications or more.

Sidonia Fagarasan D-index placement in Immunology in 2026

The chart shows the D-index (discipline H-index) distribution of Immunology scientists ranked by Research.com in 2026. The highlighted bar marks where Sidonia Fagarasan sits on this spectrum.

40–41 D-Index: 28 scientists 42–43 D-Index: 91 scientists 44–45 D-Index: 157 scientists 46–47 D-Index: 192 scientists 48–49 D-Index: 175 scientists 50–51 D-Index: 188 scientists 52–53 D-Index: 177 scientists 54–55 D-Index: 155 scientists 56–57 D-Index: 194 scientists 58–59 D-Index: 201 scientists 60–61 D-Index: 197 scientists 62–63 D-Index: 201 scientists 64–65 D-Index: 173 scientists 66–67 D-Index: 167 scientists 68–69 D-Index: 172 scientists 70–71 D-Index: 199 scientists 72–73 D-Index: 184 scientists 74–75 D-Index: 133 scientists 76–77 D-Index: 162 scientists 78–79 D-Index: 127 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 125 scientists 84–85 D-Index: 121 scientists 86–87 D-Index: 102 scientists 88–89 D-Index: 96 scientists 90–91 D-Index: 75 scientists 92–93 D-Index: 72 scientists 94–95 D-Index: 74 scientists 96–97 D-Index: 66 scientists 98–99 D-Index: 68 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 60 scientists 104–105 D-Index: 54 scientists 106–107 D-Index: 36 scientists 108–109 D-Index: 23 scientists 110–111 D-Index: 52 scientists 112–113 D-Index: 41 scientists 114–115 D-Index: 34 scientists 116–117 D-Index: 25 scientists 118–119 D-Index: 28 scientists 120–121 D-Index: 11 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 19 scientists 128–129 D-Index: 20 scientists 130–131 D-Index: 16 scientists 132–133 D-Index: 17 scientists 134–135 D-Index: 14 scientists 136–137 D-Index: 15 scientists 138–139 D-Index: 9 scientists 140–141 D-Index: 11 scientists 142–143 D-Index: 9 scientists 144–145 D-Index: 9 scientists 146–147 D-Index: 7 scientists 148–149 D-Index: 7 scientists 150–151 D-Index: 7 scientists 152–153 D-Index: 5 scientists 154–155 D-Index: 8 scientists 156 D-Index: 6 scientists 157+ D-Index: 96 scientists
40 D-Index 157+

This scientist: 56 D-Index — 26th percentile

26% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 157 D-Index or more.

Overview

Sidonia Fagarasan is affiliated with RIKEN in Japan and has contributed to various fields primarily within biochemistry, genetics, molecular biology, immunology, and microbiology, with additional work intersecting medicine. Their research encompasses subfields including molecular biology, immunology, emergency medical services, biological psychiatry, and microbiology.

The scientist's main research topics include immune cell function and interaction, gut microbiota and health, pediatric health and respiratory diseases, T-cell and B-cell immunology, tryptophan and brain disorders, polyamine metabolism and applications, and antimicrobial peptides and activities.

Frequent publication venues for their research are:

  • Trends in Immunology
  • Nature
  • Science
  • Trends in Cell Biology
  • Arthritis & Rheumatology

Sidonia Fagarasan's recent papers illustrate a focus on immune mechanisms and antitumor responses, including:

  • "B cell-derived GABA elicits IL-10+ macrophages to limit anti-tumour immunity," 2021, Nature
  • "Spermidine activates mitochondrial trifunctional protein and improves antitumor immunity in mice," 2022, Science
  • "Spermidine - an old molecule with a new age-defying immune function," 2023, Trends in Cell Biology
  • "Effect of Impaired T Cell Receptor Signaling on the Gut Microbiota in a Mouse Model of Systemic Autoimmunity," 2021, Arthritis & Rheumatology
  • "Circulation of gut-preactivated naïve CD8+T cells enhances antitumor immunity in B cell-defective mice," 2020, Proceedings of the National Academy of Sciences

The scientist has collaborated frequently with a core group of co-authors, including Baihao Zhang, Tasuku Honjo, Kenji Chamoto, Yuki Sugiura, and Rosemary J. Menzies. These collaborations have resulted in multiple joint publications demonstrating sustained research partnerships.

Best Publications

  • Class Switch Recombination and Hypermutation Require Activation-Induced Cytidine Deaminase (AID), a Potential RNA Editing Enzyme

    Masamichi Muramatsu;Kazuo Kinoshita;Sidonia Fagarasan;Shuichi Yamada

  • Metabolite-sensing receptors GPR43 and GPR109A facilitate dietary fibre-induced gut homeostasis through regulation of the inflammasome

    Laurence Macia;Jian Tan;Angelica T. Vieira;Katie Leach

  • Foxp3+ follicular regulatory T cells control the germinal center response

    Michelle A. Linterman;Wim Pierson;Sau K. Lee;Axel Kallies

  • A rheostat for immune responses: the unique properties of PD-1 and their advantages for clinical application.

    Taku Okazaki;Shunsuke Chikuma;Yoshiko Iwai;Sidonia Fagarasan

  • Aberrant expansion of segmented filamentous bacteria in IgA-deficient gut

    Keiichiro Suzuki;Bob Meek;Yasuko Doi;Masamichi Muramatsu

  • Critical roles of activation-induced cytidine deaminase in the homeostasis of gut flora.

    Sidonia Fagarasan;Masamichi Muramatsu;Keiichiro Suzuki;Hitoshi Nagaoka

  • Preferential Generation of Follicular B Helper T Cells from Foxp3+ T Cells in Gut Peyer's Patches

    Masayuki Tsuji;Noriko Komatsu;Shimpei Kawamoto;Keiichiro Suzuki

  • Intestinal IgA synthesis: regulation of front-line body defences.

    Sidonia Fagarasan;Tasuku Honjo

  • Foxp3+ T Cells Regulate Immunoglobulin A Selection and Facilitate Diversification of Bacterial Species Responsible for Immune Homeostasis

    Shimpei Kawamoto;Mikako Maruya;Lucia M. Kato;Wataru Suda

  • In situ class switching and differentiation to IgA-producing cells in the gut lamina propria

    Sidonia Fagarasan;Kazuo Kinoshita;Masamichi Muramatsu;Koichi Ikuta

  • T-Independent immune response: new aspects of B cell biology.

    Sidonia Fagarasan;Tasuku Honjo

  • Adaptive Immune Regulation in the Gut: T Cell–Dependent and T Cell–Independent IgA Synthesis

    Sidonia Fagarasan;Shimpei Kawamoto;Osami Kanagawa;Keiichiro Suzuki

  • The transcriptional regulators IRF4, BATF and IL-33 orchestrate development and maintenance of adipose tissue-resident regulatory T cells

    Ajithkumar Vasanthakumar;Kazuyo Moro;Annie Xin;Yang Liao

  • The inhibitory receptor PD-1 regulates IgA selection and bacterial composition in the gut.

    Shimpei Kawamoto;Thinh H. Tran;Mikako Maruya;Keiichiro Suzuki

  • Requirement for lymphoid tissue-inducer cells in isolated follicle formation and T cell-independent immunoglobulin A generation in the gut.

    Masayuki Tsuji;Keiichiro Suzuki;Hiroshi Kitamura;Mikako Maruya

  • Mitochondrial activation chemicals synergize with surface receptor PD-1 blockade for T cell-dependent antitumor activity

    Kenji Chamoto;Partha S. Chowdhury;Alok Kumar;Kazuhiro Sonomura;Kazuhiro Sonomura

  • B cell-derived GABA elicits IL-10 + macrophages to limit anti-tumour immunity

    Baihao Zhang;Alexis Vogelzang;Michio Miyajima;Yuki Sugiura

  • Regulation of B1 cell migration by signals through Toll-like receptors.

    Seon-ah Ha;Masayuki Tsuji;Keiichiro Suzuki;Bob Meek

  • PD-1 and LAG-3 inhibitory co-receptors act synergistically to prevent autoimmunity in mice

    Taku Okazaki;Il-mi Okazaki;Jian Wang;Daisuke Sugiura

  • B cell priming for extrafollicular antibody responses requires Bcl-6 expression by T cells

    Sau K. Lee;Robert J. Rigby;Dimitra Zotos;Louis M. Tsai

  • Foxp3(+) follicular regulatory T cells control the germinal centre response

    M. A Linterman;Wim Pierson;S. K Lee;A Kallies

Frequent Co-Authors

Tasuku Honjo
Tasuku Honjo Kyoto University
Masamichi Muramatsu
Masamichi Muramatsu National Institutes of Health
Michelle A. Linterman
Michelle A. Linterman Babraham Institute
Carola G. Vinuesa
Carola G. Vinuesa Australian National University
Axel Kallies
Axel Kallies University of Melbourne
Osami Kanagawa
Osami Kanagawa École Normale Supérieure de Lyon
Koichi Ikuta
Koichi Ikuta Kyoto University
Andrea Cerutti
Andrea Cerutti Icahn School of Medicine at Mount Sinai
Adrian Liston
Adrian Liston University of Cambridge
Fumihiko Matsuda
Fumihiko Matsuda Kyoto University

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