Evidence map›Paper›PMID 21184147›Full record

ArticlePharmaceutical research2011

Controlled release of anti-inflammatory siRNA from biodegradable polymeric microparticles intended for intra-articular delivery to the temporomandibular joint.

Paschalia M Mountziaris, David C Sing, Sue Anne Chew, Stephanie N Tzouanas, E Dennis Lehman, F Kurtis Kasper, Antonios G Mikos

Abstract read
PubMed Publisher
In one paragraph

Article in Pharmaceutical research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
  2. Article
  3. Temporomandibular Joint Regenerative Medicine.International journal of molecular sciences · 2018
    Review
  4. Review
  5. Technologies for controlled, local delivery of siRNA.Journal of controlled release : official journal of the Controlled Release Society · 2015
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. 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.

Paschalia M MountziarisDepartment of Bioengineering, Rice University, PO Box 1892, MS 142, Houston, Texas 77251-1892, USA.
David C Sing
Sue Anne Chew
Stephanie N Tzouanas
E Dennis Lehman
F Kurtis Kasper
Antonios G Mikos
Rice University · US

Funding

BIOTECHNOLOGY RESEARCH TRAINING GRANTT32GM008362 · NIGMS · RICE UNIVERSITY · PI WEST, JENNIFER L · 1990 to 2010
$3.6M
In Situ Hardening Cellular Constructs for Craniofacial Bone RegenerationR01DE017441 · NIDCR · RICE UNIVERSITY · PI MIKOS, ANTONIOS G. · 2008 to 2012
$1.6M
NANOBIOLOGY INSTITUTIONAL TRAINING GRANT(RMI)T90DK070121 · NIDDK · UNIVERSITY OF HOUSTON · PI PETTITT, BERNARD MONTGOMERY · 2004 to 2008
$1.5M
NIDCR NIH HHS R01 DE17441NIDDK NIH HHS 5 T90 DK070121-04NIGMS NIH HHS 5 T32 GM008362-19
6 · The paper itself

Abstract

purposeAs the next step in the development of an intra-articular controlled release system to treat painful temporomandibular joint (TMJ) inflammation, we developed several biodegradable poly(DL-lactic-co-glycolic acid) (PLGA)-based microparticle (MP) formulations encapsulating a model anti-inflammatory small interfering RNA (siRNA) together with branched poly(ethylenimine) (PEI) as a transfecting agent. The effect of siRNA loading and N:P ratio on the release kinetics of siRNA-PEI polyplexes was determined, and the size and N:P ratio of the polyplexes released over time was characterized.

methodsPolyplex-loaded PLGA MPs were prepared using an established double emulsion technique. Increasing the pH of the release samples enabled siRNA-PEI dissociation and subsequent measurement of the release of each component over 28 days. Polyplex diameter was measured for all release samples and compared to freshly prepared siRNA-PEI under simulated physiologic conditions.

resultsSystematic variation of siRNA loading and N:P ratio resulted in distinct siRNA and PEI release profiles. Polyplex diameter remained constant despite large variations in the relative amounts of siRNA and PEI. Excess PEI was sequestered through complexation with 500-1,000 nm diameter PLGA MP-derived particles, including small MPs and PLGA degradation products.

conclusionsThese PLGA MP formulations show exciting potential as the first intra-articular TMJ controlled release system.

Indexed as

MicrospheresAbsorbable ImplantsAnti-Inflammatory AgentsChemistry, PharmaceuticalDelayed-Action PreparationsEmulsionsHydrogen-Ion ConcentrationIminesInjections, Intra-ArticularKineticsLactic AcidOsteitisParticle SizePolyethylenesPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerAnti-Inflammatory AgentsDelayed-Action PreparationsEmulsionsIminesLactic Acidpoly(ethylene imine)PolyethylenesPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerRNA, Small Interfering

Identifiers

PMID21184147
OpenAlexW2070641148

What OpenQuestion holds

Textmetadata
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.