Evidence map›Paper›PMID 19298255›Full record

ArticleBritish journal of pharmacology2009

Artemisinin induces doxorubicin resistance in human colon cancer cells via calcium-dependent activation of HIF-1alpha and P-glycoprotein overexpression.

C Riganti, S Doublier, D Viarisio, E Miraglia, G Pescarmona, D Ghigo, A Bosia

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
10.1field-weighted citation impact, top 2% 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

46 citing papers in PubMed, 111 citations in OpenAlex.

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  17. A novel strategy for treating cancer: understanding the role of CaExploration of targeted anti-tumor therapy · 2021
    Review
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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

7 authors at 1 institution in 1 country.

C RigantiDepartment of Genetics, Biology and Biochemistry, University of Torino, and Research Center on Experimental Medicine (CeRMS), Via Santena, Torino, Italy. chiara.riganti@unito.it
S Doublier
D Viarisio
E Miraglia
G Pescarmona
D Ghigo
A Bosia
University of Turin · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeArtemisinin is an antimalarial drug exerting pleiotropic effects, such as the inhibition of the transcription factor nuclear factor-kappa B and of the sarcoplasmic/endoplasmic reticulum Ca(++)-ATPase (SERCA) of P. falciparum. As the sesquiterpene lactone thapsigargin, a known inhibitor of mammalian SERCA, enhances the expression of P-glycoprotein (Pgp) by increasing the intracellular Ca(++) ([Ca(++)](i)) level, we investigated whether artemisinin and its structural homologue parthenolide could inhibit SERCA in human colon carcinoma HT29 cells and induce a resistance to doxorubicin. EXPERIMENTAL APPROACH: HT29 cells were incubated with artemisinin or parthenolide and assessed for SERCA activity, [Ca(++)](i) levels, Pgp expression, doxorubicin accumulation and toxicity, and translocation of the hypoxia-inducible factor, HIF-1alpha. KEY

resultsArtemisinin and parthenolide, like the specific SERCA inhibitors thapsigargin and cyclopiazonic acid, reduced the activity of SERCA. They also increased intracellular calcium concentration ([Ca(++)](i)) and Pgp expression and decreased doxorubicin accumulation and cytotoxicity. The intracellular Ca(++) chelator, 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid, and the inhibitor of calmodulin-dependent kinase II (CaMKII) KN93 prevented these effects. CaMKII is known to promote the phosphorylation and the activation of HIF-1alpha, which may induce Pgp. In HT29 cells, artemisinin and parthenolide induced the phosphorylation of HIF-1alpha, which was inhibited by KN93. CONCLUSIONS AND IMPLICATIONS: Our results suggest that artemisinin and parthenolide may act as SERCA inhibitors and, like other SERCA inhibitors, induce resistance to doxorubicin in human colon cancer cells, via the CaMKII-dependent activation of HIF-1alpha and the induction of Pgp.

Indexed as

Drug Resistance, NeoplasmAntimalarialsAntimetabolites, AntineoplasticArtemisininsATP Binding Cassette Transporter, Subfamily B, Member 1CalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2Cell Line, TumorColonic NeoplasmsDoxorubicinHumansHypoxia-Inducible Factor 1, alpha SubunitPhosphorylationProtein TransportSarcoplasmic Reticulum Calcium-Transporting ATPasesSesquiterpenesAntimalarialsAntimetabolites, AntineoplasticartemisininArtemisininsATP Binding Cassette Transporter, Subfamily B, Member 1CalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2DoxorubicinHIF1A protein, humanHypoxia-Inducible Factor 1, alpha SubunitparthenolideSarcoplasmic Reticulum Calcium-Transporting ATPasesSesquiterpenes

Identifiers

PMID19298255
PMCPMC2697684
OpenAlexW1827803632

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.