Evidence map›Paper›PMID 31773434›Full record

ArticleMetabolic brain disease2020

Tannic acid elicits selective antitumoral activity in vitro and inhibits cancer cell growth in a preclinical model of glioblastoma multiforme.

Natália P Bona, Nathalia S Pedra, Juliana H Azambuja, Mayara S P Soares, Luíza Spohr, Nicolly E Gelsleichter, Bernardo de M Meine, Fernanda G Sekine, Lorenço T Mendonça, Francine H de Oliveira and 4 more

Abstract read
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In one paragraph

Article in Metabolic brain disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

22 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Review
  3. Exploring the Mechanism of Tannic Acid AgainstPathogens (Basel, Switzerland) · 2026
    Article
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  5. Article
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  15. Antiviral Effects of Secondary Metabolites fromPlants (Basel, Switzerland) · 2023
    Article
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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

14 authors at 3 institutions in 1 country.

Natália P BonaPrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Biomarcadores, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Nathalia S PedraPrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Neuroquímica, Inflamação e Câncer, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Juliana H AzambujaPrograma de Pós-Graduação em Biociências - Laboratório de Biologia Celular, Departamento de Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Sarmento Leite 245, Porto Alegre, RS, Brazil.
Mayara S P SoaresPrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Neuroquímica, Inflamação e Câncer, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Luíza SpohrPrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Neuroquímica, Inflamação e Câncer, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Nicolly E GelsleichterPrograma de Pós-Graduação em Biociências - Laboratório de Biologia Celular, Departamento de Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Sarmento Leite 245, Porto Alegre, RS, Brazil.
Bernardo de M MeinePrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Biomarcadores, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Fernanda G SekinePrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Neuroquímica, Inflamação e Câncer, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Lorenço T MendonçaPrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Biomarcadores, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Francine H de OliveiraDepartamento de Patologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Elizandra BraganholPrograma de Pós-Graduação em Biociências - Laboratório de Biologia Celular, Departamento de Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Sarmento Leite 245, Porto Alegre, RS, Brazil.
Roselia M SpanevelloPrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Neuroquímica, Inflamação e Câncer, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Elita F da SilveiraPrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Neuroquímica, Inflamação e Câncer, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil.
Francieli Moro StefanelloPrograma de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de Biomarcadores, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário S/N, Pelotas, RS, Brazil. fmstefanello@gmail.com.
Universidade Federal de Pelotas · BRUniversidade Federal de Ciências da Saúde de Porto Alegre · BRUniversidade Federal do Rio Grande do Sul · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glioblastoma is a devastating tumor affecting the central nervous system with infiltrative capacity, high proliferation rate and chemoresistance. Therefore, it is urgent to find new therapeutic alternatives that improve this prognosis. Herein, we focused on tannic acid (TA) a polyphenol with antioxidant and antiproliferative activities. In this work, the antitumor and antioxidant effects of TA on rat (C6) glioblastoma cells and their cytotoxicity relative to primary astrocyte cultures were evaluated in vitro. Cells were exposed to TA of 6.25 to 75 μM for 24, 48 and/or 72 h. In addition, colony formation, migration and cell adhesion were analyzed and flow cytometry was used to analyze cell death and cell cycle. Next, the action of TA was evaluated in a preclinical glioblastoma model performed on Wistar rats. In this protocol, the animals were treated with a dose of 50 mg/kg/day TA for 15 days. Our results demonstrated that TA induced in vitro selective antiglioma activity, not demonstrating cytotoxicity in astrocyte culture. It induced cell death by apoptosis and cell cycle arrest, reducing formation and size of colonies, cell migration/adhesion and showing to be a potential antioxidant. Interestingly, the antiglioma effect was also observed in vivo, as TA decreased tumor volume by 55%, accompanied by an increase in the area of intratumoral necrosis and infiltration of lymphocytes without causing systemic damage. To the best of our knowledge, this is the first study to report TA activity in a GBM preclinical model. Thus, this natural compound is promising as a treatment for glioblastoma.

Indexed as

AnimalsAntineoplastic AgentsBrain NeoplasmsCell Line, TumorCell ProliferationCell SurvivalDose-Response Relationship, DrugFemaleGlioblastomaMaleRatsRats, WistarTanninsXenograft Model Antitumor AssaysAntineoplastic AgentsTanninsAnimal modelAntioxidantCancerGlioblastomaSelectivityTannic acid

Identifiers

PMID31773434
OpenAlexW2990193178

What OpenQuestion holds

Textmetadata
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.