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Distribution of Sca-1+ cardiac progenitor cells in the healthy and the post-MI heart
Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The myocardial infarction (MI) is one of the leading causes of death in the world today. Accumulated atherosclerotic plaque occluding cardiac blood vessels results in a lack of oxygen supply to parts of the heart, and consequentially the death cardiomyocytes. The damaged area is replaced by scar tissue because of the heart’s insufficient regenerative capability, and the contraction property of the post-MI heart is therefore compromised. The recent findings of an endogenous cardiac progenitor cell (CPC) population gives hope for the establishment of new methods for medical treatments of the post-MI heart. Compared to other stem/progenitor cell sources, the CPCs are committed to a cardiac fate which places them in the forefront of interesting cell sources for regenerative treatments. In this thesis, the distribution of stem cell antigen 1 (Sca-1) positive CPCs in the healthy mouse myocardium, as well as the healthy and post-MI rat left ventricle was determined and compared to the total amount of nuclei. An immunohistochemistry protocol for the detection of Sca-1+ cells was established, and the number of Sca-1+ cells and the total number of nuclei in the different mouse and rat tissue samples were counted using laser scanning cytometry (LSC). The results could conclude a significantly higher distribution of Sca-1+ cells in the mouse atrium compared to the mouse ventricle, and a significantly higher distribution of Sca-1+ cells in the 8 days post-MI rat left ventricle compared to the healthy rat left ventricle. Furthermore, a heterogeneous distribution within the 8 days post-MI rat left ventricle was observed.

Place, publisher, year, edition, pages
2012. , 48 p.
Keyword [en]
Myocardial infarction, cardiac progenitor cell, regenerative medicine, immunohistochemistry, laser scanning cytometry.
National Category
Industrial Biotechnology
Identifiers
URN: urn:nbn:se:liu:diva-81720ISRN: LiU-IKE-EX-12/06--SEOAI: oai:DiVA.org:liu-81720DiVA: diva2:555777
Subject / course
Biotechnology
Presentation
2012-08-30, Almen, 09:00 (English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-09-21 Created: 2012-09-21 Last updated: 2012-09-25Bibliographically approved

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Distribution of Sca-1+ cardiac progenitor cells in the healthy and the post-MI heart(2104 kB)338 downloads
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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf