Evidence map›Paper›PMID 22902301›Full record

ArticleActa biomaterialia2012

Size-controlled insulin-secreting cell clusters.

Adam D Mendelsohn, Crystal Nyitray, Mark Sena, Tejal A Desai

Abstract read
In one paragraph

Article in Acta biomaterialia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Article
  2. Formation of Re-Aggregated Neonatal Porcine Islet Clusters ImprovesTransplant international : official journal of the European Society for Organ Transplantation · 2022
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Membranes to achieve immunoprotection of transplanted islets.Frontiers in bioscience (Landmark edition) · 2014
    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

4 authors.

Adam D MendelsohnJoint Graduate Group in Bioengineering, University of California at San Francisco, San Francisco, CA 94158, USA.
Crystal Nyitray
Mark Sena
Tejal A Desai

Funding

DIABETES, ENDOCRINOLOGY &METABOLISM TRAINING PROGRAMT32DK007418 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI EDWARD C HSIAO · 1986 to 2026
$14.3M
UCSF/UCB Joint Graduate Group in BIoengineeringT32GM008155 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI DESAI, TEJAL A. · 1985 to 2020
$12.2M
NANOPOROUS INOGANIC BIOCAPSULESR21EB000570 · NIBIB · BOSTON UNIVERSITY · PI DESAI, TEJAL A. · 2002 to 2003
$193k
NIBIB NIH HHS R21 EB000570NIDDK NIH HHS T32 DK007418NIDDK NIH HHS T32 DK07418NIGMS NIH HHS T32 GM008155
6 · The paper itself

Abstract

The search for an effective cure for type I diabetes from the transplantation of encapsulated pancreatic β-cell clusters has so far produced sub-optimal clinical outcomes. Previous efforts have not controlled the size of transplanted clusters, a parameter implicated in affecting long-term viability and the secretion of therapeutically sufficient insulin. Here we demonstrate a method based on covalent attachment of patterned laminin for fabricating uniformly size-controlled insulin-secreting cell clusters. We show that cluster size within the range 40-120μm in diameter affects a variety of therapeutically relevant cellular responses including insulin expression, content and secretion. Our studies elucidate two size-dependent phenomena: (1) as the cluster size increases from 40μm to 60μm, glucose stimulation results in a greater amount of insulin produced per cell; and (2) as the cluster size increases beyond 60μm, sustained glucose stimulation results in a greater amount of insulin secreted per cell. Our study describes a method for producing uniformly sized insulin-secreting cell clusters, and since larger cluster sizes risk nutrient availability limitations, our data suggest that 100-120μm clusters may provide optimal viability and efficacy for encapsulated β-cell transplants as a treatment for type I diabetes and that further in vivo evaluation is warranted.

Indexed as

AnimalsCell Culture TechniquesCell Line, TumorCell SurvivalDiabetes Mellitus, Type 1HumansInsulinInsulin-Secreting CellsInsulin SecretionRatsInsulin

Identifiers

PMID22902301
PMCPMC4030672

What Socratic holds

Textmetadata
LicenceTDM
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 Socratic graph.