Evidence map›Paper›PMID 37138298›Full record

ArticleStem cell research & therapy2023

Uncovering the gray zone: mapping the global landscape of direct-to-consumer businesses offering interventions based on secretomes, extracellular vesicles, and exosomes.

Atiyeh Asadpour, Badrul Hisham Yahaya, Katrina Bicknell, Graeme S Cottrell, Darius Widera

Open access · goldAbstract read
In one paragraph

Article in Stem cell research & therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Exosomes in precision dermatology: From biomarkers to targeted therapeutics in personalized care.Journal of the European Academy of Dermatology and Venereology : JEADV · 2026
    Review
  4. Review
  5. Review
  6. Article
  7. Harnessing Nanocarriers to Advance Vaccine Development.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Application of StandardizedPharmaceutics · 2025
    Article
  13. Article
  14. Review
  15. Cancer and Secretomes: HLA-G and Cancer Puzzle.Advances in experimental medicine and biology · 2025
    Review
  16. Review
  17. Article
  18. Review
  19. 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

5 authors at 2 institutions in 2 countries.

Atiyeh AsadpourStem Cell Biology and Regenerative Medicine Group, School of Pharmacy, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP, UK.
Badrul Hisham YahayaLung Stem Cell and Gene Therapy Group, Department of Biomedical Sciences, Advanced Medical and Dental Institute (IPPT), Universiti Sains Malaysia, Sains@Bertam, 13200, Kepala Batas, Penang, Malaysia.
Katrina BicknellSchool of Pharmacy, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP, UK.
Graeme S CottrellCellular and Molecular Neuroscience, School of Pharmacy, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP, UK.
Darius WideraStem Cell Biology and Regenerative Medicine Group, School of Pharmacy, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP, UK. d.widera@reading.ac.uk.ORCID 0000-0003-1686-130X
University of Reading · GBUniversiti Sains Malaysia · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe last decade has seen a significant increase in media attention, industrial growth, and patient interest in stem cell-based interventions. This led to a rise in direct-to-consumer businesses offering stem cell "therapies" for multiple indications with little evidence of safety and efficacy. In parallel, the use of stem cell secretomes as a substitute for stem cell transplantation has become an increasing trend in regenerative medicine with multiple clinical trials currently assessing their efficacy and safety profile. As a result, multiple businesses and private clinics have now started to exploit this situation and are offering secretome-based interventions despite the lack of supporting data. This poses significant risks for the patients and could lead to a credibility crisis in the field.

methodsInternet searches were used to locate clinics marketing and selling interventions based on stem cell secretomes, exosomes, or extracellular vesicles. Data were extracted from websites with a particular focus on the global distribution of the businesses, the cellular source of the secretome, the indication spectrum, and the pricing of the provided services. Lastly, the types of evidence used on the websites of the businesses to market their services were extracted.

resultsOverall, 114 companies market secretome-based therapies in 28 countries. The vast majority of the interventions are based on allogenic stem cells from undisclosed cellular sources and skin care is the most marketed indication. The price range is USD99-20,000 depending on the indication.

conclusionsThe direct-to-consumer industry for secretome-based therapies appears to be primed for growth in the absence of appropriate regulatory frameworks and guidelines. We conclude that such business activity requires tight regulations and monitoring by the respective national regulatory bodies to prevent patients from being conned and more importantly from being put at risk.

Indexed as

ExosomesExtracellular VesiclesHumansRegenerative MedicineSecretomeStem CellsCommunity healthDirect-to-consumer-businessesExosomesExtracellular vesiclesRegenerative medicineSecretomeStem cells

Identifiers

PMID37138298
PMCPMC10156419
OpenAlexW4367857274

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.