Subtopic Deep Dive
Cardiac Tissue Engineering with Stem Cell Scaffolds
Research Guide
What is Cardiac Tissue Engineering with Stem Cell Scaffolds?
Cardiac tissue engineering with stem cell scaffolds combines pluripotent stem cells, biomaterials, and bioreactors to create functional myocardial tissue for heart repair.
Researchers use iPSCs on collagen or hydrogel scaffolds to mature cardiac tissue with electromechanical properties (Ronaldson-Bouchard et al., 2018, 1194 citations). 3D printing enables patient-specific vascularized cardiac patches (Noor et al., 2019, 1002 citations). Over 10 papers from the list address stem cell integration and scaffold optimization.
Why It Matters
This approach targets myocardial infarction by engineering transplantable myocardium that integrates with host tissue, restoring contractility (Ronaldson-Bouchard et al., 2018). Mesenchymal stem cells on scaffolds improve regeneration via paracrine effects and vascularization (Han et al., 2019; Wei et al., 2013). Cardiosphere-derived cells from biopsies yield scalable cardiac progenitors for therapy (Smith et al., 2007).
Key Research Challenges
Stem Cell Maturation
Human iPSCs on scaffolds fail to achieve adult-like contraction force and conduction velocity (Ronaldson-Bouchard et al., 2018). Biochemical cues and electrical stimulation improve maturity but require optimization. Over 1194 citations highlight persistent gaps in electromechanical function.
Vascularization Integration
Thick cardiac patches lack perfusion, limiting nutrient delivery and scale-up (Noor et al., 2019). Decellularized scaffolds promote vessel ingrowth but face immune rejection risks (Gilpin and Yang, 2017). 3D printing addresses perfusability with 1002 citations.
Transplantation Outcomes
Engineered tissues show arrhythmias post-implant due to immature coupling (Smith et al., 2007). Scaffold degradation must match tissue remodeling without fibrosis. Collagen cross-linking strategies balance mechanics and biointegration (Parenteau-Bareil et al., 2010).
Essential Papers
Advanced maturation of human cardiac tissue grown from pluripotent stem cells
Kacey Ronaldson-Bouchard, P. Stephen, Keith Yeager et al. · 2018 · Nature · 1.2K citations
Collagen-Based Biomaterials for Tissue Engineering Applications
Rémi Parenteau‐Bareil, Robert Gauvin, François Berthod · 2010 · Materials · 1.2K citations
Collagen is the most widely distributed class of proteins in the human body. The use of collagen-based biomaterials in the field of tissue engineering applications has been intensively growing over...
Regenerative Potential of Cardiosphere-Derived Cells Expanded From Percutaneous Endomyocardial Biopsy Specimens
Rachel Smith, Lucio Barile, Hee Cheol Cho et al. · 2007 · Circulation · 1.1K citations
Background— Ex vivo expansion of resident cardiac stem cells, followed by delivery to the heart, may favor regeneration and functional improvement. Methods and Results— Percutaneous endomyocardial ...
Mesenchymal Stem Cells for Regenerative Medicine
Yu Han, Xuezhou Li, Yanbo Zhang et al. · 2019 · Cells · 1.1K citations
In recent decades, the biomedical applications of mesenchymal stem cells (MSCs) have attracted increasing attention. MSCs are easily extracted from the bone marrow, fat, and synovium, and different...
3D Printing of Personalized Thick and Perfusable Cardiac Patches and Hearts
Nadav Noor, Assaf Shapira, Reuven Edri et al. · 2019 · Advanced Science · 1.0K citations
Abstract Generation of thick vascularized tissues that fully match the patient still remains an unmet challenge in cardiac tissue engineering. Here, a simple approach to 3D‐print thick, vascularize...
Mesenchymal stem cells: a new trend for cell therapy
Xin Wei, Xue Yang, Zhipeng Han et al. · 2013 · Acta Pharmacologica Sinica · 939 citations
Properties of the amniotic membrane for potential use in tissue engineering
Hassan Niknejad, Habiballah Peirovi, Masoumeh Jorjani et al. · 2008 · European Cells and Materials · 784 citations
An important component of tissue engineering (TE) is the supporting matrix upon which cells and tissues grow, also known as the scaffold. Scaffolds must easily integrate with host tissue and provid...
Reading Guide
Foundational Papers
Start with Parenteau-Bareil et al. (2010, 1193 citations) for collagen scaffold basics and Smith et al. (2007, 1132 citations) for cardiosphere-derived stem cells, as they establish biomaterials and cell sources.
Recent Advances
Study Ronaldson-Bouchard et al. (2018, 1194 citations) for iPSC maturation and Noor et al. (2019, 1002 citations) for 3D printed vascularized patches.
Core Methods
Core techniques: iPSC differentiation on fibrin/collagen (Ronaldson-Bouchard 2018), 3D bioprinting with hydrogels (Noor 2019), decellularization (Gilpin 2017), and electrospinning nanofibers (Kumbar 2008).
How PapersFlow Helps You Research Cardiac Tissue Engineering with Stem Cell Scaffolds
Discover & Search
Research Agent uses searchPapers('cardiac tissue engineering iPSC scaffolds') to retrieve Ronaldson-Bouchard et al. (2018), then citationGraph reveals 1194 citing works on maturation protocols, and findSimilarPapers expands to Noor et al. (2019) for vascularized patches.
Analyze & Verify
Analysis Agent applies readPaperContent on Ronaldson-Bouchard et al. (2018) to extract maturation metrics, verifyResponse with CoVe checks electromechanical claims against Smith et al. (2007), and runPythonAnalysis plots contraction force data from supplements using matplotlib for statistical verification (GRADE: A for evidence strength).
Synthesize & Write
Synthesis Agent detects gaps in vascularization via contradiction flagging between 2D vs 3D scaffolds, then Writing Agent uses latexEditText to draft methods, latexSyncCitations for 10+ papers, and latexCompile generates a review figure with exportMermaid for scaffold design flowcharts.
Use Cases
"Analyze contraction force data from iPSC cardiac tissues across Ronaldson-Bouchard 2018 and similar papers"
Research Agent → searchPapers → Analysis Agent → runPythonAnalysis (pandas loads supplement CSVs, matplotlib plots force-velocity curves) → researcher gets overlaid stats plot and p-values.
"Write LaTeX review section on collagen scaffolds for cardiac stem cells"
Synthesis Agent → gap detection → Writing Agent → latexEditText (drafts paragraph) → latexSyncCitations (adds Parenteau-Bareil 2010) → latexCompile → researcher gets PDF section with figure.
"Find GitHub code for 3D printing cardiac patch models"
Research Agent → paperExtractUrls (Noor 2019) → paperFindGithubRepo → githubRepoInspect → researcher gets simulation scripts and STL files for perfusable heart models.
Automated Workflows
Deep Research workflow runs searchPapers on 'stem cell scaffolds cardiac' yielding 50+ papers, structures report with GRADE scores on maturation evidence from Ronaldson-Bouchard (2018). DeepScan applies 7-step CoVe to verify vascularization claims in Noor et al. (2019) vs decellularization (Gilpin 2017). Theorizer generates hypotheses on bioreactor designs from citationGraph clusters.
Frequently Asked Questions
What defines cardiac tissue engineering with stem cell scaffolds?
It engineers functional myocardium by seeding iPSCs or cardiosphere cells onto biomaterials like collagen or hydrogels, matured in bioreactors for electromechanical properties (Ronaldson-Bouchard et al., 2018).
What are key methods used?
Methods include 3D bioprinting vascularized patches (Noor et al., 2019), collagen cross-linking (Parenteau-Bareil et al., 2010), and decellularization for scaffolds (Gilpin and Yang, 2017).
What are the most cited papers?
Ronaldson-Bouchard et al. (2018, 1194 citations) on iPSC maturation; Parenteau-Bareil et al. (2010, 1193 citations) on collagen scaffolds; Smith et al. (2007, 1132 citations) on cardiosphere cells.
What open problems remain?
Challenges include scaling vascularized tissues beyond 1mm thick, achieving adult-level maturation, and ensuring arrhythmia-free transplantation (Noor et al., 2019; Ronaldson-Bouchard et al., 2018).
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