Re-generation of tissue about an animal-based scaffold: AMS studies of the fate of the scaffold

Frank A. Rickey, David Elmore, Darren Hillegonds, Stephen Badylak, Rae Record, Abby Simmons-Byrd

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Small intestinal submucosa (SIS) is an unusual tissue, which shows great promise for the repair of damaged tissues in humans. When the SIS is used as a surgical implant, the porcine-derived material is not rejected by the host immune system, and in fact stimulates the constructive re-modeling of damaged tissue. In dogs, these SIS scaffolds have been used to grow new arteries, tendons, and urinary bladders. Moreover, the SIS scaffold tissue seems to disappear from the implant region after a few months. The fate of this SIS tissue is of considerable importance if it is to be used in human tissue repair. SIS is obtained from pigs. We have labeled the SIS in several pigs by intraveneous administration of 14C enriched proline from the age of three weeks until they reach market weight. The prepared SIS was then implanted in dogs as scaffolds for urinary bladder patches. During the remaining life of each dog, blood, urine and feces samples were collected on a regular schedule. AMS analyses of these specimens were performed to measure the elimination rate of the SIS. At different intervals, the dogs were sacrificed. Tissue samples were analyzed by AMS to determine the whole-body distribution of the labeled SIS.

Original languageEnglish (US)
Pages (from-to)904-909
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume172
Issue number1-4
StatePublished - 2000
Externally publishedYes

Fingerprint

Alpha Magnetic Spectrometer
Scaffolds (biology)
regeneration
Scaffolds
animals
Animals
Tissue
dogs
swine
bladder
Repair
Tissue Scaffolds
feces
Immune system
Tendons
immune systems
tendons
urine
Proline
schedules

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Re-generation of tissue about an animal-based scaffold : AMS studies of the fate of the scaffold. / Rickey, Frank A.; Elmore, David; Hillegonds, Darren; Badylak, Stephen; Record, Rae; Simmons-Byrd, Abby.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 172, No. 1-4, 2000, p. 904-909.

Research output: Contribution to journalArticle

Rickey, Frank A. ; Elmore, David ; Hillegonds, Darren ; Badylak, Stephen ; Record, Rae ; Simmons-Byrd, Abby. / Re-generation of tissue about an animal-based scaffold : AMS studies of the fate of the scaffold. In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2000 ; Vol. 172, No. 1-4. pp. 904-909.
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