Evidence map›Paper›PMID 31101835›Full record

ArticleScientific reports2019

Combination therapy with BYL719 and LEE011 is synergistic and causes a greater suppression of p-S6 in triple negative breast cancer.

Yuan Yuan, Wei Wen, Susan E Yost, Quanhua Xing, Jin Yan, Ernest S Han, Joanne Mortimer, John H Yim

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. PROBABILISTIC LEARNING OF TREATMENT TREES IN CANCER.The annals of applied statistics · 2023
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. JCO precision oncology · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. PTEN and Other PtdIns(3,4,5)PInternational journal of molecular sciences · 2020
    Review
  20. Review
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 2 institutions in 1 country.

Yuan YuanDepartment of Medical Oncology & Molecular Therapeutics, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA. yuyuan@coh.org.
Wei WenDivision of Surgical Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA.
Susan E YostDepartment of Medical Oncology & Molecular Therapeutics, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA.
Quanhua XingDivision of Surgical Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA.
Jin YanDivision of Surgical Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA.
Ernest S HanDivision of Gynecologic Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA.
Joanne MortimerDepartment of Medical Oncology & Molecular Therapeutics, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA.
John H YimDivision of Surgical Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA. jyim@coh.org.
Beckman Research InstituteCity of Hope · US

Funding

Transgenic Mouse FacilityP30CA033572 · NCI · CITY OF HOPE/BECKMAN RESEARCH INSTITUTE · PI STANLEY R. HAMILTON · 1985 to 2026
$86.3M
Oncology Research Career Development ProgramK12CA001727 · NCI · CITY OF HOPE NATIONAL MEDICAL CENTER · PI MORTIMER, JOANNE E. · 1992 to 2024
$14.6M
NCI NIH HHS K12 CA001727NCI NIH HHS P30 CA033572
6 · The paper itself

Abstract

A third of patients with triple negative breast cancer (TNBC) have relapsed disease within 2-5 years from initial diagnosis, leaving an unmet need for therapeutic targets. TNBC frequently harbors alterations of the PI3K/AKT/mTOR pathway, but single agent PI3K/AKT/mTOR inhibitors have not shown marked efficacy. In this study, we investigated a strategy to improve efficacy of PI3K-α inhibitor BYL719 (alpelisib) in TNBC. While BYL719 is effective at inhibiting cell proliferation in T47D, a triple positive cell line, it had limited activity in TNBC. This may be partially due to persistent phosphorylation of RB, and incomplete inhibition of p-S6 in TNBC, since the inhibitory effect of BYL719 on p-RB and p-S6 was significantly reduced in TNBC compared to T47D cells. Addition of the CDK4/6 inhibitor LEE011 to BYL719 caused a simultaneous reduction of p-RB and p-S6, and a more complete inhibition of p-S6, leading to decreased expression of the pro-survival protein MCL-1, an induction of apoptosis, and an enhanced reduction of tumor growth in a PDX model of TNBC. These findings suggest that inhibition of p-RB and p-S6 is important for an effective response to the treatment of TNBC, and provides a strong rationale for clinical development of combination therapy with BYL719 and LEE011 for treatment of metastatic TNBC with intact RB.Presentation: This study was presented in part as an abstract at the 2016 San Antonio Breast Cancer Symposium (P3-03-15) and the 2018 Cancer Research and Targeted Therapy in London.

Indexed as

AminopyridinesAnimalsAntineoplastic Combined Chemotherapy ProtocolsApoptosisCell Line, TumorCell SurvivalClass I Phosphatidylinositol 3-KinasesCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6Drug SynergismEnzyme InhibitorsFemaleHumansMicePhosphorylationProtein Kinase InhibitorsAlpelisibAminopyridinesCDK4 protein, humanCDK6 protein, humanClass I Phosphatidylinositol 3-KinasesCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6Enzyme InhibitorsMTOR protein, humanPIK3CA protein, humanProtein Kinase InhibitorsProto-Oncogene Proteins c-aktPurinesRetinoblastoma ProteinribociclibRibosomal Protein S6 KinasesThiazolesTOR Serine-Threonine Kinases

Identifiers

PMID31101835
PMCPMC6525251
OpenAlexW2945177002

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.