Evidence map›Paper›PMID 40395777›Full record

ArticleMechanobiology in medicine2025

Tropomodulin1 regulates the biomechanical changes in macrophages induced by matrix stiffness.

Yajun Meng, Amannisa Tuersuntuoheti, Siyu Jiang, Jiayi Xie, Zejun Yue, Dingwen Xu, Xueyu Geng, Xiang Lian, Lide Xie, Lanping Amy Sung and 3 more

Abstract read
In one paragraph

Article in Mechanobiology in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. 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

13 authors.

Yajun MengHemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
Amannisa TuersuntuohetiHemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
Siyu JiangHemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
Jiayi XieDepartment of Automatic, Tsinghua University, Beijing 100084, China.
Zejun YueHemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
Dingwen XuDepartment of Clinic, School of Medical Science, Yangzhou Polytechnic College, Yangzhou, Jiangsu Province, 225127, China.
Xueyu GengHemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
Xiang LianDepartment of Emergency, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
Lide XieChengde Medical College, Chengde, Hebei Province, 067000, China.
Lanping Amy SungDepartment of Bioengineering, University of California, La Jolla, San Diego, 92093, CA, USA.
Xifu WangDepartment of Emergency, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
Jing ZhouHemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
Weijuan YaoHemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The monocyte/macrophage infiltration plays critical roles in the development of atherosclerosis. Arterial stiffness is a cholesterol-independent risk factor for cardiovascular events. The regulation of arterial stiffness on biomechanics of macrophages and its underlying mechanism remains unclear. We prepared polyacrylamide gels with low and high stiffness that corresponded to healthy and diseased blood vessels, respectively. We found that macrophages cultured on stiff matrix had increased rigidity and migration ability compared to those on soft matrix. An actin capping protein, tropomodulin1 (Tmod1) was upregulated in macrophages by stiff matrix and in arteries with high stiffness. Further analyses showed that deficiency of Tmod1 in macrophages completely or partially prevented the changes in actin polymerization, cell adhesion and cell spreading induced by stiff matrix. Overexpression of Tmod1 in macrophages enhanced actin polymerization, cell adhesion and spreading on stiff matrix. Tmod1 was involved in the regulation of vinculin expression and formation of focal adhesion in macrophages on stiff matrix. Finally, the deficiency of Tmod1 in macrophages retarded the formation of atherosclerotic plaques in blood vessels with high matrix stiffness. The results suggest that Tmod1 was a key regulator in macrophage rigidity and migration on stiff substrate. The present work will help us to understand the biomechanical mechanisms for the development of atherosclerosis.

Indexed as

Cytoskeletal proteinMacrophageMatrix stiffnessMigrationRigidity

Identifiers

PMID40395777
PMCPMC12067908

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.