Cited by 270Lipid metabolism and biosynthesisLipid Membrane Structure and BehaviorFatty Acid Research and Health

Fatty acid remodeling by LPCAT3 enriches arachidonate in phospholipid membranes and regulates triglyceride transport

Open access
Hashidate-Yoshida, Tomomi, Harayama, Takeshi, Hishikawa, Daisuke, Morimoto, Ryo, Hamano, Fumie, Tokuoka, Suzumi M, Eto, Miki, Tamura-Nakano, Miwa +7 more·2015·eLife

Abstract

Polyunsaturated fatty acids (PUFAs) in phospholipids affect the physical properties of membranes, but it is unclear which biological processes are influenced by their regulation. For example, the functions of membrane arachidonate that are independent of a precursor role for eicosanoid synthesis remain largely unknown. Here, we show that the lack of lysophosphatidylcholine acyltransferase 3 (LPCAT3) leads to drastic reductions in membrane arachidonate levels, and that LPCAT3-deficient mice are neonatally lethal due to an extensive triacylglycerol (TG) accumulation and dysfunction in enterocytes. We found that high levels of PUFAs in membranes enable TGs to locally cluster in high density, and that this clustering promotes efficient TG transfer. We propose a model of local arachidonate enrichment by LPCAT3 to generate a distinct pool of TG in membranes, which is required for normal directionality of TG transfer and lipoprotein assembly in the liver and enterocytes.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.7554/elife.06328

Cites

64 of 64 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • High phospholipid unsaturation may modify membrane physical properties and augment release of cholesteryl ester and triacylglycerol-containing vesicles from the endoplasmic reticulum.

    “High PL unsaturation may modify membrane physical properties and augment release of CE and TAG-containing vesicles from ER45,46.”

    From An iPSC-derived astrocyte model of fragile X syndrome exhibits dysregulated cholesterol homeostasis (2023) · cites this paper as [45]

    The Introduction and Discussion (page numbers unavailable) say PUFA-rich phospholipids make membranes more flexible and propose that this helps triglyceride transport. The Results report greater triglyceride clustering and MTP-mediated transfer with PUFA-rich membranes. The paper does not establish enhanced release of cholesteryl ester–containing vesicles from the ER, or directly show vesicle release as the mechanism. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Hashidate-Yoshida, T., Harayama, T., Hishikawa, D., Morimoto, R., Hamano, F., Tokuoka, S. M., Eto, M., Tamura-Nakano, M., Yanobu-Takanashi, R., Mukumoto, Y., Kiyonari, H., Okamura, T., Kita, Y., Shindou, H., & Shimizu, T.
Affiliations
  • Department of Lipid Signaling, National Center for Global Health and Medicine, Tokyo, Japan
  • National Center for Global Health and Medicine (JP)
  • The University of Tokyo (JP)
  • Communal Laboratory, National Center for Global Health and Medicine, Tokyo, Japan
  • Department of Laboratory Animal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
  • Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Developmental Biology, Kobe, Japan
  • Japan Science and Technology Agency (JP)
Corresponding author
Shimizu, Takao
Venue
eLife
Published
2015-04-21
Volume
4
ISSN
2050-084X (ISSN-L)
OpenAlex
W1976336399
Cited by
270
References
64
Citations by year
2026: 31 · 2025: 32 · 2024: 40 · 2023: 26 · 2022: 31 · 2021: 26 · 2020: 17 · 2019: 17 · 2018: 21 · 2017: 13 · 2016: 12 · 2015: 4
FWCI
8.30
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DiVA at Umeå University (Umeå University) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Japan Society for the Promotion of Science (JSPS) (24229003, 26460380, 26860202, 26870879)
  • Takeda Science Foundation (Special Research grant 2013)
  • National Center for Global Health and Medicine (24-001,25-201, 26A105)
  • Japan Science and Technology Agency (JST) (CREST)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
Keywords
LPCAT3, lysophosphatidylcholine acyltransferase, arachidonic acid, phospholipid membranes, polyunsaturated fatty acids, enterocytes, neonatal lethality, lipoprotein assembly, membrane lipid remodeling, hepatic lipoprotein secretion
MeSH terms
Animals, Cell Membrane, Fatty Acids, Fatty Acids, Unsaturated, Liver, 1-Acylglycerophosphocholine O-Acyltransferase, Phospholipids, Triglycerides, Arachidonic Acid, Cell Culture Techniques, Enterocytes, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review