Evidence map›Paper›PMID 37315562›Full record

ArticleDevelopmental cell2023

LC3B is lipidated to large lipid droplets during prolonged starvation for noncanonical autophagy.

Mohyeddine Omrane, Kalthoum Ben M'Barek, Alexandre Santinho, Nathan Nguyen, Shanta Nag, Thomas J Melia, Abdou Rachid Thiam

Open access · greenAbstract read
In one paragraph

Article in Developmental cell, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
6.9field-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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Molecules (Basel, Switzerland) · 2026
    Article
  8. Article
  9. ATG2A-DGAT2 cooperation fuels lipid droplet growth.Nature structural & molecular biology · 2025
    Article
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  11. Article
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  13. Resveratrol Attenuates HMolecular neurobiology · 2025
    Article
  14. ATG16L1 controls mammalian vacuolar proton ATPase.The Journal of cell biology · 2025
    Article
  15. Article
  16. Article
  17. New Potential Agent in Ovarian Ischemia Reperfusion Injury: Alpha Pinene.Journal of biochemical and molecular toxicology · 2025
    Article
  18. Article
  19. Review
  20. An update on autophagy disorders.Journal of inherited metabolic disease · 2025
    Review
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

7 authors at 2 institutions in 3 countries.

Mohyeddine OmraneLaboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 75005 Paris, France.
Kalthoum Ben M'BarekLaboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 75005 Paris, France.
Alexandre SantinhoLaboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 75005 Paris, France.
Nathan NguyenDepartment of Cell Biology, Yale University School of Medicine, New Haven, CT 06510, USA.
Shanta NagDepartment of Cell Biology, Yale University School of Medicine, New Haven, CT 06510, USA.
Thomas J MeliaDepartment of Cell Biology, Yale University School of Medicine, New Haven, CT 06510, USA.
Abdou Rachid ThiamLaboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 75005 Paris, France. Electronic address: thiam@ens.fr.
Centre National de la Recherche Scientifique · FRYale University · US

Funding

Texas NeuroAIDS Research CenterU24MH100930 · NIMH · UNIVERSITY OF TEXAS MED BR GALVESTON · PI GELMAN, BENJAMIN B. · 2013 to 2023
$12.1M
Regulation of Autophagosome Membrane Dynamics by the AtgB Family of ProteinsR01GM100930 · NIGMS · YALE UNIVERSITY · PI MELIA, THOMAS JAMES · 2013 to 2024
$5.4M
NIGMS NIH HHS R01 GM100930NIMH NIH HHS U24 MH100930
6 · The paper itself

Abstract

Lipid droplets (LDs) store lipids that can be utilized during times of scarcity via autophagic and lysosomal pathways, but how LDs and autophagosomes interact remained unclear. Here, we discovered that the E2 autophagic enzyme, ATG3, localizes to the surface of certain ultra-large LDs in differentiated murine 3T3-L1 adipocytes or Huh7 human liver cells undergoing prolonged starvation. Subsequently, ATG3 lipidates microtubule-associated protein 1 light-chain 3B (LC3B) to these LDs. In vitro, ATG3 could bind alone to purified and artificial LDs to mediate this lipidation reaction. We observed that LC3B-lipidated LDs were consistently in close proximity to collections of LC3B-membranes and were lacking Plin1. This phenotype is distinct from macrolipophagy, but it required autophagy because it disappeared following ATG5 or Beclin1 knockout. Our data suggest that extended starvation triggers a noncanonical autophagy mechanism, similar to LC3B-associated phagocytosis, in which the surface of large LDs serves as an LC3B lipidation platform for autophagic processes.

Indexed as

AutophagyLipid DropletsAnimalsAutophagosomesAutophagy-Related Protein 5HumansMiceMicrotubule-Associated ProteinsAutophagy-Related Protein 5MAP1LC3B protein, humanMap1lc3b protein, mouseMicrotubule-Associated ProteinsAtg3LC3Blipid dropletsnoncanonical autophagyorganelle biogenesisprolonged starvation

Identifiers

PMID37315562
PMCPMC10686041
OpenAlexW4380489615

What OpenQuestion holds

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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 OpenQuestion graph.