Evidence map›Paper›PMID 17971903›Full record

ArticleNeoplasia (New York, N.Y.)2007

Prazosin displays anticancer activity against human prostate cancers: targeting DNA and cell cycle.

Ssu-Chia Lin, Shih-Chieh Chueh, Che-Jen Hsiao, Tsia-Kun Li, Tzu-Hsuan Chen, Cho-Hwa Liao, Ping-Chiang Lyu, Jih-Hwa Guh

Open access · goldAbstract read
In one paragraph

Article in Neoplasia (New York, N.Y.), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

33 citing papers in PubMed, 70 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

8 authors at 3 institutions in 1 country.

Ssu-Chia LinSchool of Pharmacy, National Taiwan University, Taipei, Taiwan.
Shih-Chieh Chueh
Che-Jen Hsiao
Tsia-Kun Li
Tzu-Hsuan Chen
Cho-Hwa Liao
Ping-Chiang Lyu
Jih-Hwa Guh
National Taiwan University · TWNational Tsing Hua University · TWNational Taiwan University Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Quinazoline-based alpha1-adrenoceptor antagonists, in particular doxazosin and terazosin, are suggested to display antineoplastic activity against prostate cancers. However, there are few studies elucidating the effect of prazosin. In this study, prazosin displayed antiproliferative activity superior to that of other alpha1-blockers, including doxazosin, terazosin, tamsulosin, and phentolamine. Prazosin induced G2 checkpoint arrest and subsequent apoptosis in prostate cancer PC-3, DU-145, and LNCaP cells. In p53-null PC-3 cells, prazosin induced an increase in DNA strand breaks and ATM/ATR checkpoint pathways, leading to the activation of downstream signaling cascades, including Cdc25c phosphorylation at Ser216, nuclear export of Cdc25c, and cyclin-dependent kinase (Cdk) 1 phosphorylation at Tyr15. The data, together with sustained elevated cyclin A levels (other than cyclin B1 levels), suggested that Cdk1 activity was inactivated by prazosin. Moreover, prazosin triggered mitochondria-mediated and caspase-executed apoptotic pathways in PC-3 cells. The oral administration of prazosin significantly reduced tumor mass in PC-3-derived cancer xenografts in nude mice. In summary, we suggest that prazosin is a potential antitumor agent that induces cell apoptosis through the induction of DNA damage stress, leading to Cdk1 inactivation and G2 checkpoint arrest. Subsequently, mitochondria-mediated caspase cascades are triggered to induce apoptosis in PC-3 cells.

Indexed as

Adrenergic alpha-AntagonistsAnimalsAntineoplastic AgentsApoptosisBlotting, WesternCaspasesCell CycleCell Line, TumorCell ProliferationComet AssayDNA, NeoplasmFlow CytometryHumansMaleMiceMice, NudeAdrenergic alpha-AntagonistsAntineoplastic AgentsCaspasesDNA, NeoplasmPrazosinCdc25ccell cycleDNA damagemitochondria-involved apoptosisPrazosin

Identifiers

PMID17971903
PMCPMC2040210
OpenAlexW1964694459

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.