Evidence map›Paper›PMID 42424144›Full record

ArticleCell reports2026

Myeloid MMP14 couples extracellular proteolysis to inflammatory and metabolic remodeling during obesity.

Long J Shao, Fathima Elizondo, Feng Gao, Elizabeth L Lieu, Bharati Reddi, Maryam Elizondo, Iqbal Mahmud, Kristin Eckel-Mahan, Philipp E Scherer, Xin Ge and 3 more

Abstract read
In one paragraph

Article in Cell reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

13 authors.

Long J ShaoThe Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas Health Science Center at Houston, Houston, TX, USA.
Fathima ElizondoThe Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas Health Science Center at Houston, Houston, TX, USA.
Feng GaoDepartment of Medicine, Baylor College of Medicine, Houston, TX, USA.
Elizabeth L LieuDepartment of Medicine, Baylor College of Medicine, Houston, TX, USA.
Bharati ReddiThe Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas Health Science Center at Houston, Houston, TX, USA.
Maryam ElizondoGraduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA.
Iqbal MahmudMetabolomics Core Facility, Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Kristin Eckel-MahanThe Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas Health Science Center at Houston, Houston, TX, USA; Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA.
Philipp E SchererTouchstone Diabetes Center, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Xin GeThe Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas Health Science Center at Houston, Houston, TX, USA; Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA.
Huaizhu WuDepartment of Medicine, Baylor College of Medicine, Houston, TX, USA.
Sean HartigDepartment of Medicine, Baylor College of Medicine, Houston, TX, USA.
Kai SunThe Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas Health Science Center at Houston, Houston, TX, USA; Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA. Electronic address: kai.sun@uth.tmc.edu.

Funding

Dichotomous Effects of MT1-MMP on Adipose Tissue RemodelingR01DK109001 · NIDDK · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI SUN, KAI · 2017 to 2021
$2.0M
Therapeutic Monoclonal Antibodies Inhibiting Proteases of Biomedical ImportanceR35GM141089 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI GE, XIN · 2021 to 2025
$2.0M
Molecular regulation of leptin bioavailabilityR01DK138018 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI Sean Hartig · 2024 to 2026
$1.9M
Discovering the new function of DRP1 on lipid metabolismR01DK129815 · NIDDK · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI SUN, KAI · 2022 to 2025
$1.5M
NIDDK NIH HHS R01 DK109001NIDDK NIH HHS R01 DK129815NIDDK NIH HHS R01 DK138018NIGMS NIH HHS R35 GM141089
6 · The paper itself

Abstract

Macrophages orchestrate tissue remodeling, inflammation, and metabolic dysfunction in obesity, but the role of macrophage-intrinsic extracellular proteolysis in immunometabolic regulation remains unclear. Matrix metalloproteinase-14 (MMP14), a membrane-bound protease, is strongly induced during monocyte-to-macrophage differentiation and further elevated in adipose tissue macrophages from high-fat diet (HFD)-fed mice. Pharmacological inhibition or myeloid-specific deletion of Mmp14 impaired macrophage differentiation, proliferation, migration, phagocytosis, and inflammatory activation in response to obesity-associated adipose tissue signals. Mechanistically, MMP14 promoted inflammatory programming by increasing endotrophin generation and enhancing TLR4-NFκB signaling. MMP14 also reprogrammed macrophage lipid metabolism by suppressing lipolysis and promoting lipid accumulation, altering metabolic communication with neighboring cells. In vivo, myeloid-specific Mmp14 deletion protected mice from HFD-induced insulin resistance, dyslipidemia, hepatic steatosis, adipose inflammation, and fibrosis. These findings identify macrophage MMP14 as a key mediator linking extracellular matrix remodeling with inflammatory and metabolic dysfunction in obesity.

Indexed as

InflammationMatrix Metalloproteinase 14ObesityAdipose TissueAnimalsCell DifferentiationDiet, High-FatHumansInsulin ResistanceLipid MetabolismMacrophagesMaleMiceMice, Inbred C57BLProteolysisSignal TransductionMatrix Metalloproteinase 14Mmp14 protein, mouseCP: immunologyCP: metabolisminflammatory signalinglipid metabolismmacrophagesmetabolic adaptationMMP14

Identifiers

PMID42424144
PMCPMC13479528

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.