Evidence map›Paper›PMID 35440608›Full record

ArticleScientific reports2022

Preferential stimulation of melanocytes by M2 macrophages to produce melanin through vascular endothelial growth factor.

Heeju Han, Yena Kim, Hyunkyung Mo, Si Hwa Choi, Kijun Lee, Yeri Alice Rim, Ji Hyeon Ju

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

17 citing papers in PubMed, 17 citations in OpenAlex.

  1. Moranoline-EnrichedInternational journal of molecular sciences · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Regenerative biomaterials · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Screening for Biomarkers Related to Pigmentation and Formation in Vitiligo.Combinatorial chemistry & high throughput screening · 2025
    Article
  12. Article
  13. Article
  14. Cellular and molecular mechanisms of skin wound healing.Nature reviews. Molecular cell biology · 2024
    Review
  15. Review
  16. Article
  17. 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.

Heeju HanCatholic iPSC Research Center (CiRC), CiSTEM Laboratory, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
Yena KimCatholic iPSC Research Center (CiRC), CiSTEM Laboratory, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
Hyunkyung MoCatholic iPSC Research Center (CiRC), CiSTEM Laboratory, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
Si Hwa ChoiCatholic iPSC Research Center (CiRC), CiSTEM Laboratory, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
Kijun LeeCatholic iPSC Research Center (CiRC), CiSTEM Laboratory, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
Yeri Alice RimCatholic iPSC Research Center (CiRC), CiSTEM Laboratory, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
Ji Hyeon JuCatholic iPSC Research Center (CiRC), CiSTEM Laboratory, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea. juji@catholic.ac.kr.
Catholic University of Korea · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Post-inflammatory hyperpigmentation is a skin discoloration process that occurs following an inflammatory response or wound. As the skin begins to heal, macrophages first exhibit a proinflammatory phenotype (M1) during the early stages of tissue repair and then transition to a pro-healing, anti-inflammatory phenotype (M2) in later stages. During this process, M1 macrophages remove invading bacteria and M2 macrophages remodel surrounding tissue; however, the relationship between macrophages and pigmentation is unclear. In this study, we examined the effect of macrophages on melanin pigmentation using human induced pluripotent stem cells. Functional melanocytes were differentiated from human induced pluripotent stem cells and named as hiMels. The generated hiMels were then individually cocultured with M1 and M2 macrophages. Melanin synthesis decreased in hiMels cocultured with M1 macrophages but significantly increased in hiMels cocultured with M2 macrophages. Moreover, the expression of vascular endothelial growth factor was increased in M2 cocultured media. Our findings suggest that M2 macrophages, and not M1 macrophages, induce hyperpigmentation in scarred areas of the skin during tissue repair.

Indexed as

HyperpigmentationInduced Pluripotent Stem CellsMacrophagesHumansMelaninsMelanocytesVascular Endothelial Growth Factor AMelaninsVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID35440608
PMCPMC9019043
OpenAlexW4224325361

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.