Evidence map›Paper›PMID 25043857›Full record

ArticleMolecular carcinogenesis2015

Palmatine inhibits growth and invasion in prostate cancer cell: Potential role for rpS6/NFκB/FLIP.

Heather G Hambright, Izhar Singh Batth, Jianping Xie, Rita Ghosh, Addanki Pratap Kumar

Abstract read
In one paragraph

Article in Molecular carcinogenesis, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.7field-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

31 citing papers in PubMed, 55 citations in OpenAlex.

  1. An Updated and Comprehensive Review ofMolecules (Basel, Switzerland) · 2026
    Review
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  9. Antiproliferative Effect ofLife (Basel, Switzerland) · 2022
    Article
  10. Article
  11. Frontiers in pharmacology · 2022
    Article
  12. 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

5 authors at 1 institution in 1 country.

Heather G HambrightDepartment of Urology, University of Texas Health Science Center, San Antonio, Texas.
Izhar Singh BatthDepartment of Urology, University of Texas Health Science Center, San Antonio, Texas.
Jianping XieDepartment of Urology, University of Texas Health Science Center, San Antonio, Texas.
Rita GhoshDepartment of Urology, University of Texas Health Science Center, San Antonio, Texas.
Addanki Pratap KumarDepartment of Urology, University of Texas Health Science Center, San Antonio, Texas.
The University of Texas Health Science Center at San Antonio · US

Funding

TISSUE CULTURE---COREP30CA054174 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Robin Jean Leach · 1991 to 2026
$59.1M
Institute for Integration of Medicine & Science: A Partnership to Improve HealthUL1TR001120 · NCATS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI CLARK, ROBERT A, HARGREAVES, KENNETH M · 2013 to 2017
$16.5M
Institutional Research Training GrantT32DE014318 · NIDCR · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Kenneth M Hargreaves · 2002 to 2026
$12.1M
Oxidative stress in prostate cancer: Efficacy of antioxidants in Nkx3.1; Pten modR01CA149516 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI GHOSH, RITA · 2010 to 2014
$1.6M
Oxidative stress and programmed death pathways: Cross talk in pancreatic cancerR01AT007448 · NCCIH · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI KUMAR, ADDANKI PRATAP · 2012 to 2016
$1.6M
TARGETING FLIP FOR PROSTATE CANCER PREVENTIONR01CA135451 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI KUMAR, ADDANKI PRATAP · 2008 to 2012
$1.5M
Institute for Integration of Medicine & Science: A Partnership to Improve HealthTL1TR001119 · NCATS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI CLARK, ROBERT A, DOUGHERTY, DONALD M · 2013 to 2017
$640k
Akt/CREB signaling: Target for prostate cancerI01BX000766 · VA · SOUTH TEXAS VETERANS HEALTH CARE SYSTEM · PI KUMAR, ADDANKI PRATAP · 2011 to 2013
–
BLRD VA I01 BX000766NCATS NIH HHS TL1 TR001119NCATS NIH HHS UL1 TR001120NCCIH NIH HHS R01 AT007448NCI NIH HHS 1R01 CA 135451NCI NIH HHS 2P30 CA 054174-17NCI NIH HHS P30 CA054174NCI NIH HHS R01 CA135451NCI NIH HHS R01 CA 149516NCI NIH HHS R01 CA149516NCI NIH HHS R21 CA 137578NIDCR NIH HHS T32 DE014318
6 · The paper itself

Abstract

Novel agents are desperately needed for improving the quality of life and 5-year survival to more than 30% for metastatic castrate-resistant prostate cancer. Previously we showed that Nexrutine, Phellodendron amurense bark extract, inhibits prostate tumor growth in vitro and in vivo. Subsequently using biochemical fractionation we identified butanol fraction contributes to the observed biological activities. We report here that palmatine, which is present in the butanol fraction, selectively inhibits growth of prostate cancer cells without significant effect on non-tumorigenic prostate epithelial cells. By screening receptor tyrosine kinases in a protein kinase array, we identified ribosomal protein S6, a downstream target of p70S6K and the Akt/mTOR signaling cascade as a potential target. We further show that palmatine treatment is associated with decreased activation of NFκB and its downstream target gene FLIP. These events led to inhibition of invasion. Similar results were obtained using parent extract Nexrutine (Nx) suggesting that palmatine either in the purified form or as one of the components in Nx is a potent cytotoxic agent with tumor invasion inhibitory properties. Synergistic inhibition of rpS6/NFκB/FLIP axis with palmatine may have therapeutic potential for the treatment of prostate cancer and possibly other malignancies with their constitutive activation. These data support a biological link between rpS6/NFκB/FLIP in mediating palmatine-induced inhibitory effects and warrants additional preclinical studies to test its therapeutic efficacy.

Indexed as

Berberine AlkaloidsCASP8 and FADD-Like Apoptosis Regulating ProteinCell Line, TumorCell ProliferationEpithelial CellsHumansMaleNeoplasm InvasivenessNF-kappa BPlant ExtractsProstateProstatic NeoplasmsProto-Oncogene Proteins c-aktRibosomal Protein S6 KinasesRibosomal Protein S6 Kinases, 70-kDaSignal TransductionBerberine AlkaloidsCASP8 and FADD-Like Apoptosis Regulating ProteinMTOR protein, humanNexrutineNF-kappa BpalmatinePlant ExtractsProto-Oncogene Proteins c-aktRibosomal Protein S6 KinasesRibosomal Protein S6 Kinases, 70-kDaTOR Serine-Threonine Kinasespalmatineprostate cancerrpS6

Identifiers

PMID25043857
PMCPMC4490121
OpenAlexW1482893508

What OpenQuestion holds

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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.