Evidence map›Paper›PMID 10362360›Full record

ArticleOncogene1999

Etk/Bmx, a PH-domain containing tyrosine kinase, protects prostate cancer cells from apoptosis induced by photodynamic therapy or thapsigargin.

L Y Xue, Y Qiu, J He, H J Kung, N L Oleinick

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 79 citations in OpenAlex.

  1. Targeting the BMX in cancer: molecular mechanisms and emerging therapeutic strategies.Journal of enzyme inhibition and medicinal chemistry · 2026
    Review
  2. Signaling Pathways Regulated by UBR Box-Containing E3 Ligases.International journal of molecular sciences · 2021
    Review
  3. Review
  4. Review
  5. Article
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  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Mechanisms of resistance to photodynamic therapy.Current medicinal chemistry · 2011
    Review
  14. Nonreceptor tyrosine kinases in prostate cancer.Neoplasia (New York, N.Y.) · 2007
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
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 2 institutions in 1 country.

L Y XueDepartment of Radiation Oncology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA.
Y Qiu
J He
H J Kung
N L Oleinick
University School · USCase Western Reserve University · US

Funding

SYNTHESIS OF PHTHALOCYANINES FOR TUMOR PHOTOTHERAPYP01CA048735 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI OLEINICK, NANCY L · 1990 to 2002
$3.3M
ERBB KINASE ACTIVATION AND TRANSFORMATIONR01CA039207 · NCI · UNIVERSITY OF CALIFORNIA DAVIS · PI KUNG, HSING-JIEN · 1986 to 2004
$1.5M
CYTOGENETICS AND BIOCHEMISTRY OF PROSTATE CANCERR01CA057179 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI PRETLOW, THOMAS G · 1998 to 2002
$1.1M
ERBB KINASE ACTIVATION AND TRANSFORMATIONR37CA039207 · NCI · UNIVERSITY OF CALIFORNIA DAVIS · PI KUNG, HSING-JIEN · 1991 to 1999
–
CYTOGENETICS AND BIOCHEMISTRY OF PROSTATE CANCERU01CA057179 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI PRETLOW, THOMAS G · 1992 to 1996
–
NCI NIH HHS CA39207NCI NIH HHS CA57179NCI NIH HHS P01 CA48735
6 · The paper itself

Abstract

Prostate carcinoma (PCA) is the most frequently diagnosed malignancy in American men. PCA at advanced stages can both proliferate abnormally and resist apoptosis. Among the many known signal transduction pathways, phosphatidylinositide-3'OH kinase (PI3-kinase) has been shown to play an important role in cell survival and resistance to apoptosis. In this study, we investigate the involvement of Etk/Bmx, a newly discovered tyrosine kinase that is a substrate of PI3-kinase, in protection of prostate cancer cells from apoptosis. Parental LNCaP cells and two derivative cell lines, one overexpressing wild type Etk (Etkwt) and the other expressing a dominant negative Etk (EtkDN), were used to study the function of Etk. The cells were treated with photodynamic therapy (PDT), a newly approved cancer treatment which employs a photosensitizer and visible light to produce an oxidative stress in cells, often leading to apoptosis. Our results indicate that PDT induces apoptosis in LNCaP cells, as measured by DNA fragmentation and by cleavage of poly(ADP-ribose) polymerase (PARP), and moreover, the extent of apoptosis was much reduced in Etkwt cells as compared to LNCaP or EtkDN cells. Assay of overall cell viability confirmed that Etkwt cells were considerably less sensitive to PDT than were the parental LNCaP or EtkDN cells. Similar results were found in response to thapsigargin (TG). A specific inhibitor of PI3-kinase, LY294002, abolished Etk activity and markedly increased TG-induced PARP cleavage. The results suggest that Etk/Bmx is an efficient effector of PI3-kinase and that the newly described PI3-kinase/Etk pathway is involved in the protection of prostate carcinoma cells from apoptosis in response to PDT or TG.

Indexed as

PhotochemotherapyApoptosisCarcinomaCell SurvivalChromonesDNA FragmentationEnzyme InhibitorsHumansMaleMorpholinesMutationPhosphatidylinositol 3-KinasesPhotosensitizing AgentsPoly(ADP-ribose) PolymerasesProstatic NeoplasmsProtein-Tyrosine Kinases2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneBMX protein, humanChromonesEnzyme InhibitorsMorpholinesPhosphatidylinositol 3-KinasesPhotosensitizing AgentsPoly(ADP-ribose) PolymerasesProtein-Tyrosine KinasesThapsigargin

Identifiers

PMID10362360
OpenAlexW2133241367

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.