Evidence map›Paper›PMID 33441663›Full record

ArticleScientific reports2021

Peptidoglycan mediates Leptospira outer membrane protein Loa22 to toll-like receptor 2 for inflammatory interaction: a novel innate immune recognition.

Shen-Hsing Hsu, Ming-Yang Chang, Shih-Ming Lin, Yi-Ching Ko, Li-Feng Chou, Ya-Chung Tian, Cheng-Chieh Hung, Chih-Wei Yang

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Synergistic Modulation of the Gut-Brain-Immune Axis by a DualJournal of microbiology and biotechnology · 2025
    Article
  6. Leptospirosis.Nature reviews. Disease primers · 2025
    Review
  7. Article
  8. Immunological characterization of recombinant outer membrane Loa22 protein of local pathogenicVeterinary research forum : an international quarterly journal · 2024
    Article
  9. Article
  10. Article
  11. Review
  12. Frontiers in immunology · 2022
    Article
  13. Host and Species-Specificities of Pattern Recognition Receptors Upon Infection WithFrontiers in cellular and infection microbiology · 2022
    Review
  14. Screening of Surface-Exposed Lipoproteins ofFrontiers in microbiology · 2022
    Article
  15. Frontiers in microbiology · 2021
    Article
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

8 authors at 3 institutions in 1 country.

Shen-Hsing HsuDepartment of Nephrology, Kidney Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 5 Fu-Shing St., Taoyuan, 33333, Taiwan, ROC.
Ming-Yang ChangDepartment of Nephrology, Kidney Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 5 Fu-Shing St., Taoyuan, 33333, Taiwan, ROC.
Shih-Ming LinDepartment of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, 70101, Taiwan, ROC.
Yi-Ching KoDepartment of Nephrology, Kidney Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 5 Fu-Shing St., Taoyuan, 33333, Taiwan, ROC.
Li-Feng ChouDepartment of Nephrology, Kidney Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 5 Fu-Shing St., Taoyuan, 33333, Taiwan, ROC.
Ya-Chung TianDepartment of Nephrology, Kidney Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 5 Fu-Shing St., Taoyuan, 33333, Taiwan, ROC.
Cheng-Chieh HungDepartment of Nephrology, Kidney Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 5 Fu-Shing St., Taoyuan, 33333, Taiwan, ROC. cchung@cgmh.org.tw.
Chih-Wei YangDepartment of Nephrology, Kidney Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 5 Fu-Shing St., Taoyuan, 33333, Taiwan, ROC. cwyang@ms1.hinet.net.
Chang Gung University · TWChang Gung Memorial Hospital · TWNational Cheng Kung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Leptospirosis is an overlooked zoonotic disease caused by pathogenic Leptospira depended on virulence of Leptospira and the host-pathogen interaction. Kidney is the major organ infected by Leptospira which causes tubulointerstitial nephritis. Leptospira outer membrane contains several virulence factors and an outer membrane protein A (OmpA) like protein (Loa22) is essential for virulence. Pull-down assays suggested that Loa22 was a potential Toll-Like Receptor 2 (TLR2) binding candidates from pathogenic Leptospira. Confocal microscopy was employed to observe the co-localization of TLR2 and Loa22-LPGN (Leptospira peptidoglycan) complexes. Atomic force microscopy (AFM), side-directed mutagenesis, and enzyme-linked immunosorbent assay (ELISA) were performed to investigate the affinity between rLoa22, LPGN, and TLR2. Real time PCR was applied to measure the cytokines expression. Downstream signal transduction components were verified by western blot to evaluate the gene regulations. Mutation of two Loa22 key residues (Asp

Indexed as

Immunity, InnateBacterial Outer Membrane ProteinsHEK293 CellsHumansInflammationLeptospiraLeptospirosisMicroscopy, ConfocalPeptidoglycanReal-Time Polymerase Chain ReactionToll-Like Receptor 2Bacterial Outer Membrane ProteinsPeptidoglycanTLR2 protein, humanToll-Like Receptor 2

Identifiers

PMID33441663
PMCPMC8115183
OpenAlexW3120730014

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.