Evidence map›Paper›PMID 39538308›Full record

ArticleCell communication and signaling : CCS2024

Exosomes derived from IFNγ-stimulated mesenchymal stem cells protect photoreceptors in RCS rats by restoring immune homeostasis through tsRNAs.

Luodan A, Linghui Qu, Juncai He, Lingling Ge, Hui Gao, Xiaona Huang, Tianjing You, Hong Gong, Qingle Liang, Siyu Chen and 2 more

Abstract read
In one paragraph

Article in Cell communication and signaling : CCS, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Review
  2. Transfer RNA Fragments in Diseases of Sensory Organs.International journal of molecular sciences · 2026
    Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. 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

12 authors.

Luodan A *Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China.
Linghui Qu *Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, 400038, China.
Juncai HeSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China.
Lingling GeSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China.
Hui GaoSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China.
Xiaona HuangSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China.
Tianjing YouSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China.
Hong GongKey Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, 400038, China.
Qingle LiangDepartment of Clinical Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
Siyu ChenSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China.
Jing XieSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China. xiejingrain@163.com.
Haiwei XuSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University, Chongqing, 400038, China. xuhaiwei@tmmu.edu.cn.

Funding

he National Key Research and Development Program of China Grant No. 2021YFA1101203the Medical Science and Technology Research Fund of Guangdong Province A2021019the National Natural Science Foundation of China 81800874
6 · The paper itself

Abstract

backgroundRetinitis pigmentosa is a neurodegenerative disease with major pathologies of photoreceptor apoptosis and immune imbalance. Mesenchymal stem cells (MSCs) have been approved for clinical application for treating various immune-related or neurodegenerative diseases. The objective of this research was to investigate the mechanisms underlying the safeguarding effects of MSC-derived exosomes in a retinal degenerative disease model.

methodsInterferon gamma-stimulated exosomes (IFNγ-Exos) secreted from MSCs were isolated, purified, and injected into the vitreous body of RCS rats on postnatal day (P) 21. Morphological and functional changes in the retina were examined at P28, P35, P42, and P49 in Royal College of Surgeons (RCS) rats. The mechanism was explored using high-throughput sequencing technology and confirmed in vitro.

resultsTreatment with IFNγ-Exo produced better protective effects on photoreceptors and improved visual function in RCS rats. IFNγ-Exo significantly suppressed the activated microglia and inhibited the inflammatory responses in the retina of RCS rats, which was also confirmed in the lipopolysaccharide-activated microglia cell line BV2. Furthermore, through tRNA-derived small RNA (tsRNA) sequencing, we found that IFNγ-Exos from MSCs contained higher levels of Other-1_17-tRNA-Phe-GAA-1-M3, Other-6_23-tRNA-Lys-TTT-3, and TRF-57:75-GLN-CGG-2-m2 than native exosomes, which mainly regulated inflammatory and immune-related pathways, including the mTOR signaling pathway and EGFR tyrosine kinase inhibitor resistance.

conclusionsIFNγ stimulation enhanced the neuroprotective effects of MSC-derived exosomes on photoreceptors of the degenerative retina, which may be mediated by immune regulatory tsRNAs acting on microglia. In conclusion, IFNγ-Exo is a promising nanotherapeutic agent for the treatment of retinitis pigmentosa.

Indexed as

ExosomesInterferon-gammaMesenchymal Stem CellsAnimalsHomeostasisMicrogliaPhotoreceptor CellsPhotoreceptor Cells, VertebrateRatsRetinitis PigmentosaRNA, TransferInterferon-gammaRNA, TransferExosomesImmunomodulationInflammatory regulationMesenchymal stem cellsRetinitis pigmentosa

Identifiers

PMID39538308
PMCPMC11562488

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.