Evidence map›Paper›PMID 33468240›Full record

ReviewStem cell research & therapy2021

Differences of embedding adipose-derived stromal cells in natural and synthetic scaffolds for dermal and subcutaneous delivery.

Frederik Penzien Mamsen, Lea Munthe-Fog, Mikela Karen Mungal Kring, Dominik Duscher, Mikkel Taudorf, Adam J Katz, Stig-Frederik Trojahn Kølle

Open access · goldAbstract readReview
In one paragraph

Review in Stem cell research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. 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

7 authors at 4 institutions in 3 countries.

Frederik Penzien MamsenDepartment of Plastic Surgery, Stemform, Gyngemose Parkvej 74, DK-2860, Copenhagen, Denmark. fpm@stemform.com.ORCID 0000-0002-6901-9733
Lea Munthe-FogDepartment of Plastic Surgery, Stemform, Gyngemose Parkvej 74, DK-2860, Copenhagen, Denmark.
Mikela Karen Mungal KringDepartment of Plastic Surgery, Stemform, Gyngemose Parkvej 74, DK-2860, Copenhagen, Denmark.
Dominik DuscherDepartment of Plastic and Hand Surgery, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstrasse 22, 81675, Munich, Germany.
Mikkel TaudorfDepartment of Radiology, Rigshospitalet, University Hospital of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen, Denmark.
Adam J KatzDepartment of Plastic and Reconstructive Surgery, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC, USA.
Stig-Frederik Trojahn KølleDepartment of Plastic Surgery, Stemform, Gyngemose Parkvej 74, DK-2860, Copenhagen, Denmark.
Great Minds in STEM (United States) · USRigshospitalet · DKTUM Klinikum · DEWake Forest University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn recent years, adipose-derived stromal cells (ASCs) have been heavily studied for soft tissue regeneration, augmentation, and dermal wound healing.

methodsIn this review, we investigated the trends in injectable scaffolds for ASC delivery in the dermis, and injectable or implantable scaffolds for ASC delivery in the subcutis. A total of 547 articles were screened across three databases; of these, 22 studies were found to be eligible and were included. The scaffolds were subdivided and analyzed based on their tissue placement (dermis or subcutis), delivery method (injected or implanted), and by the origin of the materials (natural, synthetic, and combinatory).

resultsASCs embedded in scaffolds generally showed improved viability. Neovascularization in the transplanted tissue was greater when undifferentiated ASCs were embedded in a combinatory scaffold or if differentiated ASCs were embedded in a natural scaffold. ASCs embedded in natural materials underwent more adipogenic differentiation than ASCs embedded in synthetic scaffolds, indicating an etiologically unknown difference that has yet to be described. Increased mechanical strength of the scaffold material correlated with improved outcome measurements in the investigated studies. Wound healing studies reported reduced healing time in all except one article due to contraction of the control wounds.

conclusionsIn future clinical trials, we recommend embedding ASCs in injectable and implantable scaffolds for enhanced protection, retained viability, and improved therapeutic effects.

trial registrationThis review was registered with PROSPERO: ID=CRD42020171534 . The use of scaffolds as a vehicle for ASC delivery generally improved cell viability, angiogenesis, and wound healing in vivo compared to utilizing ASCs alone. ASCs embedded in natural materials induced more adipogenesis than ASCs embedded in synthetic materials. Adipogenic-induced ASCs further increased this effect. The included studies indicate that the seeded scaffold material influences the differentiation of ASCs in vivo. All studies investigating the mechanical strength of ASC scaffolds reported improved outcome measurements with improved mechanical strength. The results suggest that scaffolds, in general, are favorable for ASC delivery. We recommend initiating clinical studies using scaffolds based on mechanical properties and tunability to improve ASC viability. For fat regeneration, natural scaffolds are recommended.

Indexed as

Adipose TissueStromal CellsAdipogenesisCell DifferentiationTissue ScaffoldsWound HealingAdipose-derived stromal cellsAngiogenesisCell deliveryScaffoldsViabilityVolume retention

Identifiers

PMID33468240
PMCPMC7814704
OpenAlexW3122030674

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.