Evidence map›Paper›PMID 41998208›Full record

ArticleScientific reports2026

Astaxanthin effect on tissue transglutaminase expression in human neuronal differentiated stem cells exposed to hypoxia and hypoxia/reoxygenation.

Gabriele Bonaventura, Rosario Iemmolo, Valentina La Cognata, Maria Assunta Chiacchio, Cavallaro Sebastiano, Rosalia Pellitteri, Agatina Campisi

Abstract read
In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Gabriele BonaventuraInstitute for Biomedical Research and Innovation (IRIB), National Research Council, Catania, Italy.
Rosario IemmoloLaboratory of Genomics, L.C. Laboratori Campisi, Avola, Italy.
Valentina La CognataInstitute for Biomedical Research and Innovation (IRIB), National Research Council, Catania, Italy.
Maria Assunta ChiacchioDepartment of Drug and Health Sciences, Section of Biochemistry, University of Catania, Catania, Italy.
Cavallaro SebastianoInstitute for Biomedical Research and Innovation (IRIB), National Research Council, Catania, Italy.
Rosalia PellitteriInstitute for Biomedical Research and Innovation (IRIB), National Research Council, Catania, Italy.
Agatina CampisiDepartment of Drug and Health Sciences, Section of Biochemistry, University of Catania, Catania, Italy. agatina.campisi@unict.it.ORCID http://orcid.org/0000-0002-9808-4681

Funding

PIA.CE. RI 2020-2022 57722172121
6 · The paper itself

Abstract

Astaxanthin represents a natural antioxidant compound extracted from marine organisms, showing neuroprotective effects. In this study, for the first time, we highlighted the effect of astaxanthin pre-treatment on localization and expression of tissue transglutaminase isoforms (TG2-L and TG2-S) in human Neuronal Cells Differentiated from Human Dental Pulp Stem Cells (hNCs) exposed to hypoxia and/or hypoxia/reoxygenation. The percentage of cell viability, mitochondrial membrane potential and caspase-3 cleavage were evaluated. In particular, TG2 is involved in hypoxia diseases, playing different roles on the basis of its localization and conformation state. Our results highlight a significant increase of isoforms levels in hypoxia and/or hypoxia/reoxygenation, compared with the normoxia condition. In hypoxia and/or hypoxia/reoxygenation a significant decrease of the percentage of cell viability, an alteration mitochondrial membrane potential and the activation of the apoptotic pathway were observed. Astaxanthin pre-treatment was able to counteract the excitotoxic effect induced by hypoxia and/or hypoxia/reoxygenation, restoring TG2 isoform levels, the percentage of cell viability and the mitochondrial membrane potential to normoxia condition, inhibiting also apoptotic pathway activation. Our data highlight that astaxanthin could represent a candidate adjuvant for neural regeneration under hypoxic conditions, acting on the TG2 state, which plays a key role in apoptosis and self-renewal capacity.

Indexed as

GTP-Binding ProteinsNeural Stem CellsTransglutaminasesApoptosisCell DifferentiationCell HypoxiaCells, CulturedCell SurvivalHumansMembrane Potential, MitochondrialNeuronsOxygenProtein Glutamine gamma Glutamyltransferase 2XanthophyllsastaxanthineGTP-Binding ProteinsOxygenProtein Glutamine gamma Glutamyltransferase 2TransglutaminasesXanthophyllsAstaxanthinExcitotoxicityHuman neuronal cellsHypoxia/reoxygenationTissue transglutaminase isoforms

Identifiers

PMID41998208
PMCPMC13250132

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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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 Socratic graph.