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Tissue Engineering: Construction of a Multicellular 3D Scaffold for the Delivery of Layered Cell Sheets
Published on: October 3, 2014
Cells and Materials for Cardiac Repair and Regeneration
Reem Saud Alhejailan1, Gloria Garoffolo2, Vineesh Vimala Raveendran1
1Cell Biology Department, King's Faisal Specialist Hospital & Research Center, Riyadh 11564, Saudi Arabia.
Insights
Regenerative medicine for heart disease faces challenges in cell selection and material use. Innovations in cell reprogramming and biophysics offer new strategies for cardiac repair and boosting the heart's natural regeneration potential.
Area of Science:
- Cardiovascular regenerative medicine
- Cardiac disease treatment
- Biomaterials and cell therapy
Background:
- Over two decades since regenerative medicine's introduction for cardiac conditions, optimal cell types and materials for clinical translation remain debated.
- The heart lacks a significant stem cell reservoir for myocyte regeneration; existing cells offer primarily pro-angiogenic or immunomodulatory benefits.
- Current strategies face challenges in effectively addressing cardiac aging, ischemia, and metabolic disorders.
Purpose of the Study:
- To review the current landscape of regenerative medicine for cardiac diseases.
- To discuss the limitations in identifying effective cell types and biomaterials for clinical translation.
- To explore emerging strategies for cardiac repair and enhancing endogenous regeneration.
Main Methods:
- Review of current research in regenerative medicine for cardiac applications.
- Analysis of advancements in somatic cell reprogramming.
- Evaluation of progress in material science and cell biophysics relevant to cardiac tissue engineering.
Main Results:
- Established that the adult human heart does not possess a consistent reservoir of stem cells capable of generating new myocytes.
- Identified that available cardiac cells primarily contribute through pro-angiogenic and immunomodulatory mechanisms.
- Highlighted the potential of new developments in somatic cell reprogramming, material science, and cell biophysics.
Conclusions:
- The optimal strategy for cardiac regenerative medicine is still under intense debate.
- Somatic cell reprogramming, advanced materials, and cell biophysics show promise for protecting the heart.
- These innovations may help boost the endogenous regenerative potential lost in adulthood.
Abstract:
After more than 20 years following the introduction of regenerative medicine to address the problem of cardiac diseases, still questions arise as to the best cell types and materials to use to obtain effective clinical translation. Now that it is definitively clear that the heart does not have a consistent reservoir of stem cells that could give rise to new myocytes, and that there are cells that could contribute, at most, with their pro-angiogenic or immunomodulatory potential, there is fierce debate on what will emerge as the winning strategy. In this regard, new developments in somatic cells' reprogramming, material science and cell biophysics may be of help, not only for protecting the heart from the deleterious consequences of aging, ischemia and metabolic disorders, but also to boost an endogenous regeneration potential that seems to be lost in the adulthood of the human heart.
