Evidence map›Paper›PMID 19369227›Full record

ArticleBlood2009

Rational combined targeting of phosphodiesterase 4B and SYK in DLBCL.

Sang-Woo Kim, Deepak Rai, Morgan R McKeller, Ricardo C T Aguiar

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2009. 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
0.9field-weighted citation impact, top 27% 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, 41 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Detecting Förster resonance energy transfer in living cells by conventional and spectral flow cytometry.Cytometry. Part A : the journal of the International Society for Analytical Cytology · 2022
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. PDE4 subtypes in cancer.Oncogene · 2020
    Review
  12. Article
  13. Synergistic Targeting of the Regulatory and Catalytic Subunits of PI3Kδ in Mature B-cell Malignancies.Clinical cancer research : an official journal of the American Association for Cancer Research · 2018
    Article
  14. Safety and Pharmacodynamics of the PDE4 Inhibitor Roflumilast in Advanced B-cell Malignancies.Clinical cancer research : an official journal of the American Association for Cancer Research · 2017
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  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

4 authors at 1 institution in 1 country.

Sang-Woo KimDivision of Hematology and Medical Oncology, Department of Medicine, Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
Deepak Rai
Morgan R McKeller
Ricardo C T Aguiar
The University of Texas Health Science Center at San Antonio · US

Funding

Phosphodiesterase 4B as a Therapeutic Target in LymphomaR21CA112043 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI AGUIAR, RICARDO C · 2005 to 2006
$248k
NCI NIH HHS R21 CA112043NCI NIH HHS R21CA112043
6 · The paper itself

Abstract

Identification of rational therapeutic targets is an important strategy to improve the cure rate of diffuse large B-cell lymphoma (DLBCL). We previously showed that inhibition of the phosphodiesterase 4B (PDE4B) unleashes cyclic-AMP (cAMP) inhibitory effects toward the PI3K/AKT pathway and induces apoptosis. These data raised important considerations as to which upstream regulators mediate cAMP inhibition of PI3K/AKT, and how identifying this signaling route could be translated into clinical initiatives. We found that in normal and malignant B cells, cAMP potently inhibit the phosphorylation and activity of the tyrosine kinase SYK. Using genetic models of gain- and loss-of-function, we demonstrated the essential role for PDE4B in controlling these effects in DLBCL. Furthermore, we used a constitutively active SYK mutant to confirm its central role in transducing cAMP effects to PI3K/AKT. Importantly, given SYK credentials as a therapeutic target in B-cell tumors, we explored the role of PDE4B in these responses. In multiple DLBCL models, we found that genetically, hence specifically, inhibiting PDE4B expression significantly improved the efficacy of SYK inhibitors. Our data defined a hitherto unknown role for cAMP in negatively regulating SYK and indicate that combined inhibition of PDE4B and SYK should be actively pursued.

Indexed as

Phosphodiesterase 4 InhibitorsAnimalsAntineoplastic Combined Chemotherapy ProtocolsApoptosisBlotting, WesternB-LymphocytesCells, CulturedCyclic AMPCyclic Nucleotide Phosphodiesterases, Type 4Enzyme InhibitorsEnzyme-Linked Immunosorbent AssayHumansImmunoblottingIntracellular Signaling Peptides and ProteinsLymphoma, Large B-Cell, DiffuseMiceCyclic AMPCyclic Nucleotide Phosphodiesterases, Type 4Enzyme InhibitorsIntracellular Signaling Peptides and ProteinsPDE4B protein, humanPhosphatidylinositol 3-KinasesPhosphodiesterase 4 InhibitorsProtein-Tyrosine KinasesProto-Oncogene Proteins c-aktRNA, Small InterferingSyk KinaseSYK protein, humanSyk protein, mouse

Identifiers

PMID19369227
PMCPMC2699235
OpenAlexW1967891573

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.