Evidence map›Paper›PMID 38311582›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2024

Mfn2/Hsc70 Complex Mediates the Formation of Mitochondria-Lipid Droplets Membrane Contact and Regulates Myocardial Lipid Metabolism.

Lang Hu, Daishi Tang, Bingchao Qi, Dong Guo, Ying Wang, Jing Geng, Xiaoliang Zhang, Liqiang Song, Pan Chang, Wensheng Chen and 2 more

Open access · goldAbstract read
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
12.1field-weighted citation impact, top 1% 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

49 citing papers in PubMed, 41 citations in OpenAlex.

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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

12 authors at 6 institutions in 1 country.

Lang HuDepartment of Cardiology, Tangdu Hospital, Airforce Medical University, Xi'an, 710032, China.
Daishi TangDigestive System Department, Shaanxi Provincial Crops Hospital of Chinese People's Armed Police Force, Xi'an, 710032, China.
Bingchao QiDepartment of Cardiology, Tangdu Hospital, Airforce Medical University, Xi'an, 710032, China.
Dong GuoDepartment of Cardiology, Tangdu Hospital, Airforce Medical University, Xi'an, 710032, China.
Ying WangDepartment of Cardiology, Tangdu Hospital, Airforce Medical University, Xi'an, 710032, China.
Jing GengDepartment of Cardiology, Tangdu Hospital, Airforce Medical University, Xi'an, 710032, China.
Xiaoliang ZhangDepartment of Cardiology, Tangdu Hospital, Airforce Medical University, Xi'an, 710032, China.
Liqiang SongDepartment of Respirology, Xijing Hospital, Airforce Medical University, Xi'an, 710032, China.
Pan ChangDepartment of Cardiology, The Second Affiliated Hospital of Xi'an Medical College, Xi'an, 710032, China.
Wensheng ChenDepartment of Cardiovascular Surgery, Xi'an Gaoxin Hospital, Xi'an, 710032, China.
Feng FuDepartment of Physiology and Pathophysiology, Airforce Medical University, Xi'an, 710032, China.
Yan LiDepartment of Cardiology, Tangdu Hospital, Airforce Medical University, Xi'an, 710032, China.ORCID 0000-0001-7025-1209
Tang Du Hospital · CNAir Force Engineering University · CNJiangSu Armed Police General Hospital · CNXi'an Chest Hospital · CNXi'an Medical University · CNXijing Hospital · CN

Funding

Innovation Project of Tangdu Hospital 2019GJHZ003Innovation Project of Tangdu Hospital 2019YXGJ003Key Research and Development Plan of Shaanxi 2022KWZ-18National Natural Science Foundation of China 82070385National Natural Science Foundation of China 82070387
6 · The paper itself

Abstract

The heart primarily derives its energy through lipid oxidation. In cardiomyocytes, lipids are stored in lipid droplets (LDs) and are utilized in mitochondria, although the structural and functional connections between these two organelles remain largely unknown. In this study, visible evidence have presented indicating that a complex is formed at the mitochondria-LD membrane contact (MLC) site, involving mitochondrion-localized Mfn2 and LD-localized Hsc70. This complex serves to tether mitochondria to LDs, facilitating the transfer of fatty acids (FAs) from LDs to mitochondria for β-oxidation. Reduction of Mfn2 induced by lipid overload inhibits MLC, hinders FA transfer, and results in lipid accumulation. Restoring Mfn2 reinstates MLC, alleviating myocardial lipotoxicity under lipid overload conditions both in-vivo and in-vitro. Additionally, prolonged lipid overload induces Mfn2 degradation through the ubiquitin-proteasome pathway, following Mfn2 acetylation at the K243 site. This leads to the transition from adaptive lipid utilization to maladaptive lipotoxicity. The experimental findings are supported by clinical data from patients with obesity and age-matched non-obese individuals. These translational results make a significant contribution to the molecular understanding of MLC in the heart, and offer new insights into its role in myocardial lipotoxicity.

Indexed as

GTP PhosphohydrolasesHSC70 Heat-Shock ProteinsLipid DropletsLipid MetabolismMyocytes, CardiacAnimalsFatty AcidsHeartHumansHydrolasesMiceMitochondriaMitochondrial MembranesFatty AcidsGTP PhosphohydrolasesHSC70 Heat-Shock ProteinsHspa8 protein, mouseHydrolasesMfn2 protein, mouseHsc70lipid overloadMfn2mitochondrion‐lipid droplets membrane contactsmyocardial lipotoxicity

Identifiers

PMID38311582
PMCPMC11005711
OpenAlexW4391537439

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.