Evidence map›Paper›PMID 20577894›Full record

ArticleInvestigational new drugs2011

Anti-tumour effects of xanthone derivatives and the possible mechanisms of action.

Quan-Guan Su, Yan Liu, Yu-Chen Cai, Yue-Li Sun, Bo Wang, Li-Jian Xian

Abstract read
PubMed Publisher
In one paragraph

Article in Investigational new drugs, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

8 citing papers in PubMed, 31 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Quan-Guan SuState Key Laboratory of Oncology in Southern China, Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China.
Yan Liu
Yu-Chen Cai
Yue-Li Sun
Bo Wang
Li-Jian Xian
Sun Yat-sen University · CNSun Yat-sen University Cancer Center · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To explore the potential anti-tumour activities of xanthone derivatives, 26 hydroxylxanthones and benzoxanthones and their structurally modified analogues were examined for potential cytotoxic activities against eight human cancer cell lines. Most of the xanthone derivatives exhibited a higher degree of cytotoxicity on HepG2 cells than on the other seven cancer cell lines. Compound 24 (1,3,7-Trihydroxy-12H-benzo[b] xanthen-12-one) showed the highest degree of cytotoxicity of the tested compounds against HepG2 cells and demonstrated good tumour specificity by exhibiting a much higher degree of cytotoxicity against HepG2 cells than against normal liver cells (L02). Several valuable structure-activity relationships were derived from the cytotoxicity data. In addition, we found that compound 24 could downregulate the expression of the Mcl-1 protein, induce changes in the mitochondrial membrane potential and induce apoptosis in HepG2 cells via the mitochondrial pathway. Compound 24 was also shown to inhibit topoisomerase (topo) II activity and downregulate the levels of both topo II mRNA and protein in HepG2 cells. The present results suggest that due to its potent cytotoxicity and good tumour selectivity, compound 24 may be exploited as a potential lead compound in the development of a new anti-tumour agent with specific activity against liver cancer.

Indexed as

Antineoplastic AgentsApoptosisCell Line, TumorDNA Topoisomerases, Type IIDown-RegulationHep G2 CellsHumansLiver NeoplasmsMembrane Potential, MitochondrialMyeloid Cell Leukemia Sequence 1 ProteinNeoplasmsProto-Oncogene Proteins c-bcl-2Structure-Activity RelationshipXanthonesAntineoplastic AgentsDNA Topoisomerases, Type IIMyeloid Cell Leukemia Sequence 1 ProteinProto-Oncogene Proteins c-bcl-2Xanthones

Identifiers

PMID20577894
OpenAlexW1981530119

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.