Evidence map›Paper›PMID 24574320›Full record

ArticleCancer medicine2014

Silibinin inhibits accumulation of myeloid-derived suppressor cells and tumor growth of murine breast cancer.

Parvin Forghani, Mohammad R Khorramizadeh, Edmund K Waller

Open access · goldAbstract read
In one paragraph

Article in Cancer medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

32 citing papers in PubMed, 62 citations in OpenAlex.

  1. International journal of molecular sciences · 2026
    Review
  2. Review
  3. Review
  4. Milk Thistle (Current medicinal chemistry · 2025
    Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Tumor immunomodulatory effects of polyphenols.Frontiers in immunology · 2022
    Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Progress on Modulating Tumor-Associated Macrophages with Biomaterials.Advanced materials (Deerfield Beach, Fla.) · 2020
    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

3 authors at 2 institutions in 2 countries.

Parvin ForghaniDepartment of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia.
Mohammad R Khorramizadeh
Edmund K Waller
Tehran University of Medical Sciences · IREmory University · US

Funding

Winship Cancer Institute Cancer Center Support GrantP30CA138292 · NCI · EMORY UNIVERSITY · PI Suresh S Ramalingam · 2009 to 2026
$47.5M
Using donor pDC to optimize GvHD and GvL in allogeneic stem cell transplantationR01CA188523 · NCI · EMORY UNIVERSITY · PI WALLER, EDMUND K · 2014 to 2018
$1.6M
Using donor dendritic cells to optimize GvHD and GvL in allogeneic stem cell transplantationR56AI145231 · NIAID · EMORY UNIVERSITY · PI WALLER, EDMUND K · 2019 to 2019
$379k
NCI NIH HHS P30 CA138292NCI NIH HHS R01 CA188523NIAID NIH HHS R56 AI145231
6 · The paper itself

Abstract

Myeloid-derived suppressor cells (MDSC)s increase in blood and accumulate in the tumor microenvironment of tumor-bearing animals, contributing to immune suppression in cancer. Silibinin, a natural flavonoid from the seeds of milk thistle, has been developed as an anti-inflammatory agent and supportive care agent to reduce the toxicity of cancer chemotherapy. The goals of this study were to evaluate the effect of silibinin on MDSCs in tumor-bearing mice and antitumor activity of silibinin in a mouse model of breast cancer. 4T1 luciferase-transfected mammary carcinoma cells were injected into in the mammary fat pad female BALB/c mice, and female CB17-Prkdc Scid/J mice. Silibinin treatment started on day 4 or day 14 after tumor inoculation continued every other day. Tumor growth was monitored by bioluminescent imaging (BLI) measuring total photon flux. Flow cytometry measured total leukocytes, CD11b(+) Gr-1(+) MDSC, and T cells in the blood and tumors of tumor-bearing mice. The effects of silibinin on 4T1 cell viability in vitro were measured by BLI. Treatment with silibinin increased overall survival in mice harboring tumors derived from the 4T1-luciferase breast cancer cell line, and reduced tumor volumes and numbers of CD11b(+) Gr-1(+) MDSCs in the blood and tumor, and increased the content of T cells in the tumor microenvironment. Silibinin failed to inhibit tumor growth in immunocompromised severe combined immunodeficiency mice, supporting the hypothesis that anticancer effect of silibinin is immune-mediated. The antitumor activity of silibinin requires an intact host immune system and is associated with decreased accumulation of blood and tumor-associated MDSCs.

Indexed as

AnimalsAntioxidantsFemaleMammary Neoplasms, ExperimentalMiceMice, Inbred BALB CMice, SCIDMyeloid CellsRandom AllocationSilybinSilymarinXenograft Model Antitumor AssaysAntioxidantsSilybinSilymarin4T1breast cancermicemyeloid-derived suppressor cellsSCIDsilibinin

Identifiers

PMID24574320
PMCPMC3987072
OpenAlexW1976705588

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.