Evidence map›Paper›PMID 22843486›Full record

ArticleAnnals of the rheumatic diseases2013

Targeted delivery of cytokine therapy to rheumatoid tissue by a synovial targeting peptide.

Sarah E Wythe, Danielle DiCara, Taher E I Taher, Ciara M Finucane, Rita Jones, Michele Bombardieri, Y K Stella Man, Ahuva Nissim, Stephen J Mather, Yuti Chernajovsky and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Peptide targeting improves the delivery and therapeutic index of glucocorticoids to treat rheumatoid arthritis.Journal of controlled release : official journal of the Controlled Release Society · 2024
    Article
  7. Article
  8. Biomaterial strategies for improved intra-articular drug delivery.Journal of biomedical materials research. Part A · 2021
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Peptide-directed liposomal delivery improves the therapeutic index of an immunomodulatory cytokine in controlling autoimmune arthritis.Journal of controlled release : official journal of the Controlled Release Society · 2018
    Article
  17. Review
  18. Article
  19. Article
  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

11 authors at 1 institution in 1 country.

Sarah E WytheWilliam Harvey Research Institute, Barts and The London School of Medicine and Dentistry, London, UK.
Danielle DiCara
Taher E I Taher
Ciara M Finucane
Rita Jones
Michele Bombardieri
Y K Stella Man
Ahuva Nissim
Stephen J Mather
Yuti Chernajovsky
Costantino Pitzalis
William Harvey Research Institute · GB

Funding

Arthritis Research UK 17606
6 · The paper itself

Abstract

objectivesThe synovial endothelium targeting peptide (SyETP) CKSTHDRLC has been identified previously and was shown to preferentially localise to synovial xenografts in the human/severe combined immunodeficient (SCID) mouse chimera model of rheumatoid arthritis (RA). The objective of the current work was to generate SyETP-anti-inflammatory-cytokine fusion proteins that would deliver bioactive cytokines specifically to human synovial tissue.

methodsFusion proteins consisting of human interleukin (IL)-4 linked via a matrix metalloproteinase (MMP)-cleavable sequence to multiple copies of either SyETP or scrambled control peptide were expressed in insect cells, purified by Ni-chelate chromatography and bioactivity tested in vitro. The ability of SyETP to retain bioactive cytokine in synovial but not control skin xenografts in SCID mice was determined by in vivo imaging using nano-single-photon emission computed tomography-computed tomography (nano-SPECT-CT) and measuring signal transducer and activator of transcription 6 (STAT6) phosphorylation in synovial grafts following intravenous administration of the fusion protein.

resultsIn vitro assays confirmed that IL-4 and the MMP-cleavable sequence were functional. IL-4-SyETP augmented production of IL-1 receptor antagonist (IL-1ra) by fibroblast-like synoviocytes (FLS) stimulated with IL-1β  in a dose-dependent manner. In vivo imaging showed that IL-4-SyETP was retained in synovial but not in skin tissue grafts and the period of retention was significantly enhanced through increasing the number of SyETP copies from one to three. Finally, retention correlated with increased bioactivity of the cytokine as quantified by STAT6 phosphorylation in synovial grafts.

conclusionsThe present work demonstrates that SyETP specifically delivers fused IL-4 to human rheumatoid synovium transplanted into SCID mice, thus providing a proof of concept for peptide-targeted tissue-specific immunotherapy in RA. This technology is potentially applicable to other biological treatments providing enhanced potency to inflammatory sites and reducing systemic toxicity.

Indexed as

Arthritis, RheumatoidAnimalsCytokinesDisease Models, AnimalDrug Delivery SystemsHumansImmunotherapyInterleukin-4MiceMice, SCIDMultimodal ImagingPeptidesPositron-Emission TomographyRecombinant Fusion ProteinsSynovial MembraneTomography, X-Ray ComputedCytokinesInterleukin-4PeptidesRecombinant Fusion Proteins

Identifiers

PMID22843486
PMCPMC3551226
OpenAlexW2114809670

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.