Evidence map›Paper›PMID 29844427›Full record

ArticleNature communications2018

Pharmacologic inhibition of protein phosphatase-2A achieves durable immune-mediated antitumor activity when combined with PD-1 blockade.

Winson S Ho, Herui Wang, Dominic Maggio, John S Kovach, Qi Zhang, Qi Song, Francesco M Marincola, John D Heiss, Mark R Gilbert, Rongze Lu and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
3.8field-weighted citation impact, top 5% 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

54 citing papers in PubMed, 88 citations in OpenAlex.

  1. Article
  2. Adaptive resistance in cancer immunotherapy.Cellular & molecular immunology · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. MedComm · 2025
    Article
  10. Targeting PP2A in cancer: an underrated option.Journal of experimental & clinical cancer research : CR · 2025
    Review
  11. Article
  12. Article
  13. Article
  14. Protein Phosphatase 2A Promotes CD8Research (Washington, D.C.) · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. PP2A catalytic subunit alpha is critically required for CD8bioRxiv : the preprint server for biology · 2024
    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

11 authors at 5 institutions in 1 country.

Winson S HoSurgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
Herui WangNeuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
Dominic MaggioSurgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
John S KovachLixte Biotechnology Holdings, Inc., East Setauket, NY, 11733, USA.
Qi ZhangNeuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
Qi SongNeuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
Francesco M MarincolaAbbVie Biotherapeutics, Redwood City, CA, 94063, USA.
John D HeissSurgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
Mark R GilbertNeuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
Rongze LuMedImmune, Gaithersburg, MD, 20878, USA. lurongzerose@gmail.com.
Zhengping ZhuangSurgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA. zhengping.zhuang@nih.gov.
National Cancer Institute · USNational Institutes of Health · USNational Institute of Neurological Disorders and Stroke · USAbbVie (United States) · USLixte (United States) · US

Funding

Brain Tumor Clinical and Clinical Research Program (Clinical Support Services)ZIDBC011642 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI OZER, BYRAM · 2015 to 2025
$23.4M
Molecular Pathogenesis of NeoplasiaZIANS003052 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI HEISS, JOHN · 2009 to 2025
$20.7M
6 · The paper itself

Abstract

Mounting evidence suggests that inhibition of protein phosphatase-2A (PP2A), a serine/threonine phosphatase, could enhance anticancer immunity. However, drugs targeting PP2A are not currently available. Here, we report that a PP2A inhibitor, LB-100, when combined with anti-PD-1 (aPD-1) blockade can synergistically elicit a durable immune-mediated antitumor response in a murine CT26 colon cancer model. This effect is T-cell dependent, leading to regression of a significant proportion of tumors. Analysis of tumor lymphocytes demonstrates enhanced effector T-cell and reduced suppressive regulatory T-cell infiltration. Clearance of tumor establishes antigen-specific secondary protective immunity. A synergistic effect of LB-100 and aPD-1 blockade is also observed in B16 melanoma model. In addition, LB-100 activates the mTORC1 signaling pathway resulting in decreased differentiation of naive CD4 cells into regulatory T cells. There is also increased expression of Th1 and decreased expression of Th2 cytokines. These data highlight the translational potential of PP2A inhibition in combination with checkpoint inhibition.

Indexed as

AnimalsAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsBridged Bicyclo Compounds, HeterocyclicCD8-Positive T-LymphocytesCell Line, TumorColonic NeoplasmsFemaleHumansImmunotherapyLymphocyte ActivationLymphocytes, Tumor-InfiltratingMechanistic Target of Rapamycin Complex 1Melanoma, ExperimentalMiceMice, Inbred BALB CAntineoplastic AgentsBridged Bicyclo Compounds, HeterocyclicLB100Mechanistic Target of Rapamycin Complex 1Pdcd1 protein, mousePiperazinesProgrammed Cell Death 1 ReceptorProtein Phosphatase 2

Identifiers

PMID29844427
PMCPMC5974350
OpenAlexW2806646910

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.