Evidence map›Paper›PMID 24910243›Full record

ArticleCell metabolism2014

The adipocyte-inducible secreted phospholipases PLA2G5 and PLA2G2E play distinct roles in obesity.

Hiroyasu Sato, Yoshitaka Taketomi, Ayako Ushida, Yuki Isogai, Takumi Kojima, Tetsuya Hirabayashi, Yoshimi Miki, Kei Yamamoto, Yasumasa Nishito, Tetsuyuki Kobayashi and 11 more

Open access · bronzeAbstract read
In one paragraph

Article in Cell metabolism, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 1 pooled it
6.7field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 1 synthesis or guideline pooled it, 143 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Phospholipases: Where Do We Stand?Methods in molecular biology (Clifton, N.J.) · 2027
    Review
  4. Secreted phospholipase PLA2G5 acts as a hemolytic factor in sepsis.The Journal of clinical investigation · 2026
    Article
  5. Association ofBiomedical reports · 2026
    Article
  6. Article
  7. Article
  8. Autophagy activation by the Becn1Brain, behavior, and immunity · 2026
    Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

21 authors at 7 institutions in 2 countries.

Hiroyasu SatoLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan; Department of Health Chemistry, Showa University, School of Pharmacy, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
Yoshitaka TaketomiLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan; Department of Health Chemistry, Showa University, School of Pharmacy, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
Ayako UshidaLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan; Department of Biology, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan.
Yuki IsogaiLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan; Department of Biology, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan.
Takumi KojimaLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan.
Tetsuya HirabayashiLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan.
Yoshimi MikiLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan; Department of Health Chemistry, Showa University, School of Pharmacy, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
Kei YamamotoLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan.
Yasumasa NishitoCore Technology and Research Center, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan.
Tetsuyuki KobayashiDepartment of Biology, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan.
Kazutaka IkedaInstitute for Advanced Biosciences, Keio University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan.
Ryo TaguchiDepartment of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai-shi, Aichi 487-8501, Japan.
Shuntaro HaraDepartment of Health Chemistry, Showa University, School of Pharmacy, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
Satoshi IdaDepartment of Gastroenterological Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
Yuji MiyamotoDepartment of Gastroenterological Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
Masayuki WatanabeDepartment of Gastroenterological Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
Hideo BabaDepartment of Gastroenterological Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
Keishi MiyataDepartment of Molecular Genetics, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
Yuichi OikeDepartment of Molecular Genetics, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
Michael H GelbDepartments of Chemistry and Biochemistry, University of Washington, Campus Box 351700, 36 Bagley Hall, Seattle, WA 98195, USA.
Makoto MurakamiLipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan; CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan. Electronic address: murakami-mk@igakuken.or.jp.
Tokyo Metropolitan Institute of Medical Science · JPKumamoto University · JPShowa University · JPOchanomizu University · JPChubu University · JPKeio University · JPUniversity of Washington · US

Funding

Biochemical Studies of 14-kDa Phospholipases A2R37HL036235 · NHLBI · UNIVERSITY OF WASHINGTON · PI GELB, MICHAEL H · 2007 to 2016
$4.1M
STUDIES IN ENZYMOLOGY USING INHIBITORSR01HL036235 · NHLBI · UNIVERSITY OF WASHINGTON · PI GELB, MICHAEL H · 1989 to 2006
$2.1M
RATIONALLY-DESIGNED INHIBITORS OF PHOSPHOLIPASE-A2R23HL036235 · NHLBI · UNIVERSITY OF WASHINGTON · PI GELB, MICHAEL H · 1986 to 1988
–
NHLBI NIH HHS HL36235NHLBI NIH HHS R01 HL036235NHLBI NIH HHS R37 HL036235
6 · The paper itself

Abstract

Metabolic disorders, including obesity and insulin resistance, have their basis in dysregulated lipid metabolism and low-grade inflammation. In a microarray search of unique lipase-related genes whose expressions are associated with obesity, we found that two secreted phospholipase A2s (sPLA2s), PLA2G5 and PLA2G2E, were robustly induced in adipocytes of obese mice. Analyses of Pla2g5(-/-) and Pla2g2e(-/-) mice revealed distinct roles of these sPLA2s in diet-induced obesity. PLA2G5 hydrolyzed phosphatidylcholine in fat-overladen low-density lipoprotein to release unsaturated fatty acids, which prevented palmitate-induced M1 macrophage polarization. As such, PLA2G5 tipped the immune balance toward an M2 state, thereby counteracting adipose tissue inflammation, insulin resistance, hyperlipidemia, and obesity. PLA2G2E altered minor lipoprotein phospholipids, phosphatidylserine and phosphatidylethanolamine, and moderately facilitated lipid accumulation in adipose tissue and liver. Collectively, the identification of "metabolic sPLA2s" adds this gene family to a growing list of lipolytic enzymes that act as metabolic coordinators.

Indexed as

Adipose Tissue, WhiteAnimalsCells, CulturedDiet, High-FatFemaleGlucose Tolerance TestGroup II Phospholipases A2Group V Phospholipases A2HumansInflammationInsulinLeptinLipoproteinsLiverMacrophagesMiceGroup II Phospholipases A2Group V Phospholipases A2InsulinLeptinLipoproteinsPla2g2e protein, mousePla2g5 protein, mouseProto-Oncogene Proteins c-aktRNA, Messenger

Identifiers

PMID24910243
PMCPMC4079757
OpenAlexW2056128417

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.