Evidence map›Paper›PMID 33952191›Full record

ArticleMolecular medicine (Cambridge, Mass.)2021

CircPTK2-miR-181c-5p-HMGB1: a new regulatory pathway for microglia activation and hippocampal neuronal apoptosis induced by sepsis.

Min Li, Junwen Hu, Yucong Peng, Jingbo Li, Reng Ren

Open access · goldAbstract read
In one paragraph

Article in Molecular medicine (Cambridge, Mass.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.1field-weighted citation impact, top 8% of its field
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

23 citing papers in PubMed, 42 citations in OpenAlex.

  1. Review
  2. Article
  3. p65 enhanced METTL3-mediated mCentral-European journal of immunology · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Complementary and alternative medicine on cognitive defects and neuroinflammation after sepsis.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2024
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Role of circRNA in pathogenesis of AlzheimerZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2022
    Article
  17. MicroRNA-181c-5p modulates phagocytosis efficiency in bone marrow-derived macrophages.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2022
    Article
  18. Article
  19. Review
  20. Sepsis-Induced Brain Dysfunction: Pathogenesis, Diagnosis, and Treatment.Oxidative medicine and cellular longevity · 2022
    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

5 authors at 1 institution in 1 country.

Min LiNeuroscience Intensive Care Unit, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China. limin_mlin@163.com.ORCID 0000-0002-0891-9404
Junwen HuDepartment of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China.
Yucong PengDepartment of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China.
Jingbo LiNeuroscience Intensive Care Unit, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China.
Reng RenNeuroscience Intensive Care Unit, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China.
Second Affiliated Hospital of Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCircular RNA hsa_circ_0008305 (circPTK2), miR-181c-5p and High mobility group box-1 (HMGB1) had a targeted regulatory relationship through bioinformatics analysis. This study explained the effects of these genes in microglia and sepsis mice.

methodsLipopolysaccharide (LPS) or Cecal Ligation and Puncture (CLP) was used to induce inflammation cell model or sepsis mouse model, as needed. Gene levels were measured by enzyme linked immunosorbent assay (ELISA), quantitative real-time PCR or Western blot, as required. Apoptosis was detected by TUNEL assay, and RNase R was used to test the stability of circPTK2. Targeting relationships between genes were analyzed using bioinformatics analysis and dual luciferase assay. Morris water maze test and mitochondrial membrane potential (MMP) detection were conducted to analyze the effects of genes on cognitive dysfunction of mice.

resultsLipopolysaccharide induction triggered the release of pro-inflammatory cytokines, the upregulation of HMGB1 and circPTK2, and the downregulation of miR-181c-5p in microglia. Overexpression of HMGB1 enhanced the effect of LPS, while silencing HMGB1 partially counteracted the effect of LPS. Moreover, miR-181c-5p was a target of circPTK2 and bound to HMGB1. MiR-181c-5p mimic partially reversed the functions of LPS and HMGB1 overexpression, reduced the levels of TNF-α, IL-1β, and HMGB1, and inhibited apoptosis. CircPTK2 knockdown had the same effect as miR-181c-5p up-regulation. In vivo, sicircPTK2 improved cognitive function, restored MMP level, inhibited apoptosis, reduced the levels of inflammatory factors and apoptotic factors, and increased the survival rate of CLP-induced mice.

conclusionOur research reveals that circPTK2 regulates microglia activation and hippocampal neuronal apoptosis induced by sepsis via miR-181c-5p-HMGB1 signaling.

Indexed as

HMGB1 ProteinMicroRNAsRNA, CircularAnimalsApoptosisCell LineCytokinesHippocampusLearningLipopolysaccharidesMiceMice, Inbred C57BLMicrogliaNeuronsSepsisSignal TransductionCytokinesHMGB1 ProteinHMGB1 protein, mouseLipopolysaccharidesMicroRNAsmirn181 microRNA, mouseRNA, CircularCircPTK2High mobility group box-1MicrogliaMiR-181c-5pSepsis

Identifiers

PMID33952191
PMCPMC8101146
OpenAlexW3159751935

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.