Evidence map›Paper›PMID 41298368›Full record

ArticleNature communications2025

Sec14L6 is a phosphoinositide transporter that regulates phosphoinositide homeostasis and biogenesis of lipid droplets.

Tiantian Zhou, Juan Xiong, Xuewen Hu, Yuanjiao Du, Anbing Shi, Weiping Chang, Jichao Qin, Lin Deng, Wei-Ke Ji

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

9 authors.

Tiantian Zhou *Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongii Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic infectious Diseases, Huazhong University of Science and Technology, Wuhan, China.
Juan Xiong *Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.ORCID http://orcid.org/0000-0002-3005-0274
Xuewen Hu *Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongii Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic infectious Diseases, Huazhong University of Science and Technology, Wuhan, China.
Yuanjiao DuShenzhen Bay Laboratory, Shenzhen, China.
Anbing ShiDepartment of Biochemistry and Molecular Biology, School of Basic Medicine, Tongii Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic infectious Diseases, Huazhong University of Science and Technology, Wuhan, China.
Weiping ChangShenzhen Bay Laboratory, Shenzhen, China.
Jichao QinDepartment of Gastrointestinal Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.ORCID http://orcid.org/0000-0002-2961-7624
Lin DengShenzhen Bay Laboratory, Shenzhen, China.ORCID http://orcid.org/0000-0003-4483-1909
Wei-Ke JiDepartment of Biochemistry and Molecular Biology, School of Basic Medicine, Tongii Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic infectious Diseases, Huazhong University of Science and Technology, Wuhan, China. Weike_Ji1985@163.com.ORCID http://orcid.org/0000-0003-1788-0879

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lipid droplets (LDs) are evolutionarily conserved organelles essential for cellular metabolism. They form and grow at the endoplasmic reticulum (ER), requiring lipid transfer between these compartments, yet the underlying molecular mechanisms remain elusive. We identify Sec14L6, a unique Sec14 family member, as a lipid transporter regulating phosphoinositide (PIP) homeostasis and LD biogenesis, promoting adipogenic differentiation of mesenchymal stem cells. Sec14L6 directly binds the LD biogenesis factor ACSL3, which facilitates the association of Sec14L6 with LD surface. Furthermore, the ER membrane protein PGRMC1 recruits Sec14L6 to the ER. Targeted lipidomics revealed profound PIP dysregulation in Sec14L6-KO cells: LDs accumulated phosphoinositide-4-phosphate (PI4P) and PI(4,5)P₂, while these PIPs were reduced within the ER. In vitro assays demonstrated that Sec14L6 transports PI4P and PI(4,5)P₂. Sec14L6 knockout significantly impaired LD formation; this defect was rescued by wild-type Sec14L6, but not by lipid-transfer-deficient mutants. Our study reveals an essential role for Sec14L6 in PIP homeostasis and promotes LD biogenesis through lipid transfer between the ER and LDs.

Indexed as

Lipid DropletsPhosphatidylinositolsAnimalsCoenzyme A LigasesEndoplasmic ReticulumHEK293 CellsHomeostasisHumansLipid MetabolismMembrane ProteinsMesenchymal Stem CellsMicePhosphatidylinositol 4,5-DiphosphatePhosphatidylinositol PhosphatesCoenzyme A LigasesMembrane ProteinsPhosphatidylinositol 4,5-Diphosphatephosphatidylinositol 4-phosphatePhosphatidylinositol PhosphatesPhosphatidylinositols

Identifiers

PMID41298368
PMCPMC12658205

What OpenQuestion holds

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Registered trials

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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.