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An in vitro system to evaluate the effects of ischemia on survival of cells used for cell therapy.

Publication ,  Journal Article
Davis, BH; Schroeder, T; Yarmolenko, PS; Guilak, F; Dewhirst, MW; Taylor, DA
Published in: Ann Biomed Eng
August 2007

Maintaining cell viability is a major challenge associated with transplanting cells into ischemic myocardium to restore function. A likely contributor to significant cell death during cardiac cell therapy is hypoxia/anoxia. We developed a system that enabled quantification and association of cell survival with oxygen and nutrient values within in vitro constructs. Myoblasts were suspended in 2% collagen gels in 1 cm diameter x 1 cm deep constructs. At 48 +/- 3 h post-seeding, oxygen levels were measured using microelectrodes and gels were snap-frozen. Bioluminescence metabolite imaging and TUNEL staining were performed on cryosections. Oxygen and glucose consumption and lactate production rates were calculated by fitting data to Fick's second law of diffusion with Michaelis-Menten kinetics. Oxygen levels dropped to 0 mmHg and glucose levels dropped from 4.28 to 3.18 mM within the first 2000 mum of construct depth. Cell viability dropped to approximately 40% over that same distance and continued to drop further into the construct. We believe this system provides a reproducible and controllable test bed to compare survival, proliferation, and phenotype of various cell inputs (e.g., myoblasts, mesenchymal stem cells, and cardiac stem cells) and the impact of different treatment regimens on the likelihood of survival of transplanted cells.

Duke Scholars

Published In

Ann Biomed Eng

DOI

ISSN

0090-6964

Publication Date

August 2007

Volume

35

Issue

8

Start / End Page

1414 / 1424

Location

United States

Related Subject Headings

  • Tissue Transplantation
  • Swine
  • Oxygen Consumption
  • Myocardial Ischemia
  • Myoblasts, Cardiac
  • Muscle, Skeletal
  • Mesenchymal Stem Cells
  • Lactic Acid
  • In Vitro Techniques
  • Hypoxia
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Davis, B. H., Schroeder, T., Yarmolenko, P. S., Guilak, F., Dewhirst, M. W., & Taylor, D. A. (2007). An in vitro system to evaluate the effects of ischemia on survival of cells used for cell therapy. Ann Biomed Eng, 35(8), 1414–1424. https://doi.org/10.1007/s10439-007-9301-2
Davis, Bryce H., Thies Schroeder, Pavel S. Yarmolenko, Farshid Guilak, Mark W. Dewhirst, and Doris A. Taylor. “An in vitro system to evaluate the effects of ischemia on survival of cells used for cell therapy.Ann Biomed Eng 35, no. 8 (August 2007): 1414–24. https://doi.org/10.1007/s10439-007-9301-2.
Davis BH, Schroeder T, Yarmolenko PS, Guilak F, Dewhirst MW, Taylor DA. An in vitro system to evaluate the effects of ischemia on survival of cells used for cell therapy. Ann Biomed Eng. 2007 Aug;35(8):1414–24.
Davis, Bryce H., et al. “An in vitro system to evaluate the effects of ischemia on survival of cells used for cell therapy.Ann Biomed Eng, vol. 35, no. 8, Aug. 2007, pp. 1414–24. Pubmed, doi:10.1007/s10439-007-9301-2.
Davis BH, Schroeder T, Yarmolenko PS, Guilak F, Dewhirst MW, Taylor DA. An in vitro system to evaluate the effects of ischemia on survival of cells used for cell therapy. Ann Biomed Eng. 2007 Aug;35(8):1414–1424.
Journal cover image

Published In

Ann Biomed Eng

DOI

ISSN

0090-6964

Publication Date

August 2007

Volume

35

Issue

8

Start / End Page

1414 / 1424

Location

United States

Related Subject Headings

  • Tissue Transplantation
  • Swine
  • Oxygen Consumption
  • Myocardial Ischemia
  • Myoblasts, Cardiac
  • Muscle, Skeletal
  • Mesenchymal Stem Cells
  • Lactic Acid
  • In Vitro Techniques
  • Hypoxia