Evidence map›Paper›PMID 39416781›Full record

ArticleFrontiers in immunology2024

Spermidine attenuates chondrocyte inflammation and cellular pyroptosis through the AhR/NF-κB axis and the NLRP3/caspase-1/GSDMD pathway.

Xiaocheng Guo, Xinyuan Feng, Yue Yang, He Zhang, Lunhao Bai

Abstract read
In one paragraph

Article in Frontiers in immunology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Xiaocheng GuoDepartment of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.
Xinyuan FengDepartment of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.
Yue YangDepartment of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.
He ZhangDepartment of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.
Lunhao BaiDepartment of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Osteoarthritis (OA) is a prevalent chronic degenerative disease, marked by a complex interplay of mechanical stress, inflammation, and metabolic imbalances. Recent studies have highlighted the potential of spermidine (SPD), a naturally occurring polyamine known for its anti-inflammatory and antioxidant properties, as a promising therapeutic agent for OA. This study delves into the therapeutic efficacy and mechanistic pathways of SPD in mitigating OA symptoms. Methods: Forty Sprague-Dawley rats were randomly assigned to four groups, including the CG (sham operation), model (anterior cruciate ligament transection [ACLT], and treatment (ACLT + two different doses of SPD) groups. Results: Our research reveals that SPD exerts significant anti-inflammatory and antipyroptotic effects on IL-1β-treated chondrocytes and in anterior cruciate ligament transection (ACLT) rat models of OA, primarily through interaction with the Aryl hydrocarbon receptor (AhR). Specifically, SPD's binding to AhR plays a crucial role in modulating the inflammatory response and cellular pyroptosis by inhibiting both the AhR/NF-κB and NLRP3/caspase-1/GSDMD signaling pathways. Furthermore, the knockdown of AhR was found to negate the beneficial effects of SPD, underscoring the centrality of the AhR pathway in SPD's action mechanism. Additionally, SPD was observed to promote the preservation of cartilage integrity and suppress ECM degradation, further supporting its potential as an effective intervention for OA. Discussion: Collectively, our findings propose SPD as a novel therapeutic approach for OA treatment, targeting the AhR pathway to counteract the disease's progression and highlighting the need for further clinical evaluation to fully establish its therapeutic utility.

Indexed as

ChondrocytesInflammationPyroptosisSignal TransductionSpermidineAnimalsAnti-Inflammatory AgentsBasic Helix-Loop-Helix ProteinsCaspase 1Cells, CulturedDisease Models, AnimalGasderminsMaleNF-kappa BNLR Family, Pyrin Domain-Containing 3 ProteinOsteoarthritisAhr protein, ratAnti-Inflammatory AgentsBasic Helix-Loop-Helix ProteinsCaspase 1GasderminsGsdmd protein, ratNF-kappa BNLR Family, Pyrin Domain-Containing 3 ProteinNlrp3 protein, ratPhosphate-Binding ProteinsReceptors, Aryl HydrocarbonSpermidinearomatic hydrocarbon receptorinflammationosteoarthritispyroptosisspermidine

Identifiers

PMID39416781
PMCPMC11479918

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LicenceCC BY
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Registered trials

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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.