Evidence map›Paper›PMID 27706246›Full record

ArticlePloS one2016

Extracellular Histone Released from Leukemic Cells Increases Their Adhesion to Endothelium and Protects them from Spontaneous and Chemotherapy-Induced Leukemic Cell Death.

Hyun Ju Yoo, Jee-Soo Lee, Ji-Eun Kim, JaYoon Gu, Youngil Koh, Inho Kim, Hyun Kyung Kim

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

16 citing papers in PubMed, 24 citations in OpenAlex.

  1. Regulation of histones in thromboinflammation.Frontiers in immunology · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Circulating Histones to Detect and Monitor the Progression of Cancer.International journal of molecular sciences · 2023
    Review
  7. Article
  8. Characterization of the B-Cell Epitopes ofFrontiers in cellular and infection microbiology · 2022
    Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. 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

7 authors at 1 institution in 1 country.

Hyun Ju YooDepartment of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea.
Jee-Soo LeeDepartment of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea.
Ji-Eun KimDepartment of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea.
JaYoon GuDepartment of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea.
Youngil KohCancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
Inho KimCancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
Hyun Kyung KimDepartment of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea.
Seoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWhen leukocytes are stimulated by reactive oxygen species (ROS), they release nuclear contents into the extracellular milieu, called by extracellular traps (ET). The nuclear contents are mainly composed of the histone-DNA complex and neutrophil elastase. This study investigated whether leukemic cells could release ET and the released histone could induce endothelial activation, eventually resulting in leukemic progression.

methodsThe circulating ET were measured in 80 patients with hematologic diseases and 40 healthy controls. ET formation and ROS levels were investigated during leukemic cell proliferation in vitro. Histone-induced endothelial adhesion molecules expression and cell survival were measured by flow cytometry.

resultsAcute leukemia patients had high levels of ET, which correlated with peripheral blast count. Leukemic cells produced high ROS levels and released extracellular histone, which was significantly blocked by antioxidants. Histone significantly induced 3 endothelial adhesion molecules expression, and promoted leukemic cell adhesion to endothelial cells, which was inhibited by histone inhibitors (heparin, polysialic acid, and activated protein C), neutralizing antibodies against these adhesion molecules, and a Toll like receptor(TLR)9 antagonist. When leukemic cells were co-cultured with endothelial cells, adherent leukemic cells showed better survival than the non-adherent ones, demonstrating that histone-treated endothelial cells protected leukemic cells from both spontaneous and chemotherapy-induced death.

conclusionOur data demonstrate for the first time that extracellular histone can be released from leukemic cells through a ROS-dependent mechanism. The released histone promotes leukemic cell adhesion by inducting the surface expression of endothelial adhesion molecules and eventually protects leukemic cells from cell death.

Indexed as

AdultAgedAntineoplastic AgentsApoptosisCell AdhesionCell Adhesion MoleculesCell ProliferationCell SurvivalCoculture TechniquesCulture Media, ConditionedExtracellular TrapsFemaleHistonesHL-60 CellsHumansHuman Umbilical Vein Endothelial CellsAntineoplastic AgentsCell Adhesion MoleculesCulture Media, ConditionedHistonesReactive Oxygen Species

Identifiers

PMID27706246
PMCPMC5051947
OpenAlexW2528871059

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.