Evidence map›Paper›PMID 31664534›Full record

ArticleMedical oncology (Northwood, London, England)2019

Caffeine enhances the anti-tumor effect of 5-fluorouracil via increasing the production of reactive oxygen species in hepatocellular carcinoma.

Zhilei Wang, Chengxin Gu, Xinrui Wang, Yating Lang, Yanqin Wu, Xiaoqin Wu, Xifei Zhu, Kunyuan Wang, Hui Yang

Abstract read
PubMed Publisher
In one paragraph

Article in Medical oncology (Northwood, London, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

19 citing papers in PubMed, 36 citations in OpenAlex.

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  7. Coffee as a Source of Antioxidants and an Elixir of Youth.Antioxidants (Basel, Switzerland) · 2025
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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

9 authors at 1 institution in 1 country.

Zhilei WangDepartment of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, 510260, Guangdong, People's Republic of China.
Chengxin GuDepartment of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, 510260, Guangdong, People's Republic of China.
Xinrui WangThe Second Clinical Medicine School of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China.
Yating LangThe Second Clinical Medicine School of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China.
Yanqin WuThe Second Clinical Medicine School of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China.
Xiaoqin WuThe Second Clinical Medicine School of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China.
Xifei ZhuThe Second Clinical Medicine School of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China.
Kunyuan WangDepartment of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, 510260, Guangdong, People's Republic of China. kalawang@foxmail.com.
Hui YangDepartment of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, 510260, Guangdong, People's Republic of China. yanghui@gzhmu.edu.cn.ORCID http://orcid.org/0000-0003-1344-501X
Second Affiliated Hospital of Guangzhou Medical University · CN

Funding

Guangzhou Medical University Student Science and Technology Innovation Project 2017A027the Guangdong Natural Science Funds for Distinguished Young Scholar no. S2013050014121the National Natural Science Foundation of China no. 81372634the Science and Technology Program of Guangzhou no. 201707010470
6 · The paper itself

Abstract

The development of drug resistance affecting the prognosis of patients with hepatocellular carcinoma (HCC) leads to low survival rate of HCC patients. Caffeine is reported to have a function of protecting the liver and anti-tumor activity. Therefore, caffeine may be an ideal enhancer for HCC chemotherapy regimens. Our study showed that the combination of caffeine and 5-FU significantly inhibited the proliferation of HCC cells in vivo and in vitro comparing with caffeine or 5-FU monotherapy. The CI values of caffeine (0.5 mM) combined with 5-FU (25, 50 μM) were all less than 1, confirming that the utilization of drug combination has a synergistic inhibitory effect on the proliferation of HCC cells. Meanwhile, results of Western blot and TUNEL assays demonstrated that the apoptotic level of HCC cells in the combined group was significantly increased. The protein expression level of cleaved PARP was up-regulated, while the protein level of Bcl-2 and Bcl-xL was down-regulated. In addition, we found that ROS levels were increased in the 1 mM caffeine and 25 μM 5-FU combination group comparing with the control or single drug group. Taken together, this is the first study to demonstrate that the combination of caffeine and 5-FU inhibits HCC cells proliferation and promotes cellular apoptosis by regulating intracellular ROS production. The present data provides a basis for the application of caffeine combined with 5-FU as a novel chemotherapy regimen for HCC.

Indexed as

AnimalsAntimetabolites, AntineoplasticAntineoplastic Combined Chemotherapy ProtocolsApoptosisCaffeineCarcinoma, HepatocellularCell Line, TumorCell ProliferationCentral Nervous System StimulantsDrug SynergismFluorouracilHumansLiver NeoplasmsMaleMiceMice, Inbred BALB CAntimetabolites, AntineoplasticCaffeineCentral Nervous System StimulantsFluorouracilReactive Oxygen Species5-FluouracilApoptosisCaffeineHepatocellular carcinomaProliferationReactive oxygen species

Identifiers

PMID31664534
OpenAlexW2982409861

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.