Evidence map›Paper›PMID 42598102›Full record

ArticleBioactive materials2027

Biomimetic stress granules replenish lysosomal repair to reinstate macrophage immunometabolic antibacterial programs.

Shenzhi Zhao, Liang Chen, Zhenxuan Shao, Yikan Sun, Xueluer Mu, Minjun Yao, Jiayu Chen, Xiaoqiang Jin, Fangqian Wang, Xupeng Chai and 12 more

Abstract read
In one paragraph

Article in Bioactive materials, 2027. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

22 authors.

Shenzhi ZhaoDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Liang ChenDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Zhenxuan ShaoDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Yikan SunDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Xueluer MuCollege of Polymer Science and Engineering, Qingdao University of Science and Technology, No. 53 Zhengzhou Road, Qingdao, 266042, China.
Minjun YaoDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Jiayu ChenDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Xiaoqiang JinDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Fangqian WangDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Xupeng ChaiDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Yucheng XueDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Eloy YinwangDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Shixin ChenDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Haochen MouDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Kelei WangDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Xiayu HuDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Lingxiao JinDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Jiangchu LeiDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Shuyang ZhangDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Zengjie ZhangDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Xiaohua YuDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Zhaoming YeDepartment of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Severe intracellular bacterial infection can progressively compromise lysosomal defence in macrophages, yet the underlying repair bottleneck remains unclear. Here we identify a time-dependent exhaustion of stress granule (SG)-associated lysosomal repair during sustained infection: progressive depletion of core SG components, including G3BP1 and galectin-3 (Gal-3), undermines lysosomal membrane resealing, resulting in lysosomal deacidification and persistent cytosolic acidification. This pH imbalance suppresses glycolytic metabolism and blunts macrophage pro-inflammatory antibacterial programs, thereby enabling intracellular bacterial persistence. Since this exhausted repair module cannot be readily reconstituted by conventional pharmacological or genetic approaches, we engineer biomimetic stress granules (BSGs), Gal-3-functionalized nanodiscs cloaked in acid-responsive fusogen-expressing macrophage membrane vesicles (Gal3-NDs@EF-MNVs), to achieve sequential targeting and cytosolic delivery to damaged lysosomes. BSGs stabilize membrane lesions, suppress lysosomal leakage and restore lysosomal acidification, pH homeostasis and metabolic fitness, thereby recapitulating the 'plugging' behavior of native stress granules at sites of membrane injury. This work establishes biomimetic organelle repair as a general, materials-driven paradigm to restore innate immunity against intracellular infections - without escalating antibiotics or genetic manipulation.

Indexed as

ImmunometabolismIntracellular infectionLysosomesMacrophagesNanomedicine

Identifiers

PMID42598102
PMCPMC13471229

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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.