Evidence map›Paper›PMID 34831393›Full record

ArticleCells2021

Annexin A1 Mimetic Peptide and Piperlongumine: Anti-Inflammatory Profiles in Endotoxin-Induced Uveitis.

Ana Paula Girol, Caroline de Freitas Zanon, Ícaro Putinhon Caruso, Sara de Souza Costa, Helena Ribeiro Souza, Marinônio Lopes Cornélio, Sonia Maria Oliani

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. AcCells · 2025
    Article
  3. Annexin A1 in the nervous and ocular systems.Neural regeneration research · 2024
    Review
  4. Article
  5. Annexin A1 (Ac2-26)-dependent Fpr2 receptor alleviates sepsis-induced acute kidney injury by inhibiting inflammation and apoptosis in vivo and in vitro.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2023
    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

7 authors at 3 institutions in 1 country.

Ana Paula GirolDepartment of Physical and Morphological Sciences, University Center Padre Albino (UNIFIPA), Catanduva 15809-144, SP, Brazil.ORCID 0000-0002-8760-8945
Caroline de Freitas ZanonDepartment of Biology, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil.
Ícaro Putinhon CarusoDepartment of Phisics, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil.ORCID 0000-0003-4464-0520
Sara de Souza CostaDepartment of Physical and Morphological Sciences, University Center Padre Albino (UNIFIPA), Catanduva 15809-144, SP, Brazil.ORCID 0000-0002-9359-5482
Helena Ribeiro SouzaDepartment of Physical and Morphological Sciences, University Center Padre Albino (UNIFIPA), Catanduva 15809-144, SP, Brazil.
Marinônio Lopes CornélioDepartment of Phisics, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil.
Sonia Maria OlianiDepartment of Biology, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil.ORCID 0000-0003-0918-2130
Fundação Padre Albino · BRUniversidade Estadual Paulista (Unesp) · BRFaculdade Ceres · BR

Funding

National Council for Scientific and Technological Development 308144/2014-7National Council for Scientific and Technological Development 404190/2016-2São Paulo Research Foundation 2015/03359-5São Paulo Research Foundation 2019/19949-7
6 · The paper itself

Abstract

Uveitis is one of the main causes of blindness worldwide, and therapeutic alternatives are worthy of study. We investigated the effects of piperlongumine (PL) and/or annexin A1 (AnxA1) mimetic peptide Ac2-26 on endotoxin-induced uveitis (EIU). Rats were inoculated with lipopolysaccharide (LPS) and intraperitoneally treated with Ac2-26 (200 µg), PL (200 and 400 µg), or Ac2-26 + PL after 15 min. Then, 24 h after LPS inoculation, leukocytes in aqueous humor, mononuclear cells, AnxA1, formyl peptide receptor (fpr)1, fpr2, and cyclooxygenase (COX)-2 were evaluated in the ocular tissues, along with inflammatory mediators in the blood and macerated supernatant. Decreased leukocyte influx, levels of inflammatory mediators, and COX-2 expression confirmed the anti-inflammatory actions of the peptide and pointed to the protective effects of PL at higher dosage. However, when PL and Ac2-26 were administered in combination, the inflammatory potential was lost. AnxA1 expression was elevated among groups treated with PL or Ac2-26 + PL but reduced after treatment with Ac2-26. Fpr2 expression was increased only in untreated EIU and Ac2-26 groups. The interaction between Ac2-26 and PL negatively affected the anti-inflammatory action of Ac2-26 or PL. We emphasize that the anti-inflammatory effects of PL can be used as a therapeutic strategy to protect against uveitis.

Indexed as

AnimalsAnnexin A1Anti-Inflammatory AgentsCiliaCyclooxygenase 2DioxolanesEndotoxinsEyeInflammation MediatorsMaleModels, BiologicalMonocytesNeutrophilsPeptidesPiperidonesRatsAnnexin A1annexin A1 peptide (2-26)Anti-Inflammatory AgentsCyclooxygenase 2DioxolanesEndotoxinsInflammation Mediatorslipoxin A(4) receptor, ratPeptidesPiperidonespiperlongumineReceptors, LipoxinAc2-26eye inflammationFPR receptorinflammatory mediatorslipopolysaccharidenatural bioactive extracts

Identifiers

PMID34831393
PMCPMC8625584
OpenAlexW3213811685

What OpenQuestion holds

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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.