scholarly journals Cardiac Tissue Engineering for the Treatment of Myocardial Infarction

2021 ◽  
Vol 8 (11) ◽  
pp. 153
Author(s):  
Dongmin Yu ◽  
Xiaowei Wang ◽  
Lei Ye

Poor cell engraftment rate is one of the primary factors limiting the effectiveness of cell transfer therapy for cardiac repair. Recent studies have shown that the combination of cell-based therapy and tissue engineering technology can improve stem cell engraftment and promote the therapeutic effects of the treatment for myocardial infarction. This mini-review summarizes the recent progress in cardiac tissue engineering of cardiovascular cells from differentiated human pluripotent stem cells (PSCs), highlights their therapeutic applications for the treatment of myocardial infarction, and discusses the present challenges of cardiac tissue engineering and possible future directions from a clinical perspective.

Gels ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 253
Author(s):  
Bhaumik Patel ◽  
Ravi Manne ◽  
Devang B. Patel ◽  
Shashank Gorityala ◽  
Arunkumar Palaniappan ◽  
...  

Cardiovascular diseases are a leading cause of mortality across the globe, and transplant surgeries are not always successful since it is not always possible to replace most of the damaged heart tissues, for example in myocardial infarction. Chitosan, a natural polysaccharide, is an important biomaterial for many biomedical and pharmaceutical industries. Based on the origin, degree of deacetylation, structure, and biological functions, chitosan has emerged for vital tissue engineering applications. Recent studies reported that chitosan coupled with innovative technologies helped to load or deliver drugs or stem cells to repair the damaged heart tissue not just in a myocardial infarction but even in other cardiac therapies. Herein, we outlined the latest advances in cardiac tissue engineering mediated by chitosan overcoming the barriers in cardiac diseases. We reviewed in vitro and in vivo data reported dealing with drug delivery systems, scaffolds, or carriers fabricated using chitosan for stem cell therapy essential in cardiac tissue engineering. This comprehensive review also summarizes the properties of chitosan as a biomaterial substrate having sufficient mechanical stability that can stimulate the native collagen fibril structure for differentiating pluripotent stem cells and mesenchymal stem cells into cardiomyocytes for cardiac tissue engineering.


Author(s):  
Dominique Shum-Tim ◽  
Khalid Ridwan ◽  
Mohammad Alrefai ◽  
John Connell ◽  
Arghya Paul ◽  
...  

2017 ◽  
Vol 5 (10) ◽  
pp. 1976-1987 ◽  
Author(s):  
Ambigapathi Moorthi ◽  
Yu-Chang Tyan ◽  
Tze-Wen Chung

Cardiovascular disease (CVD), leading to myocardial infarction and heart failure, is one of the major causes of death worldwide.


2015 ◽  
Vol 117 (suppl_1) ◽  
Author(s):  
Jun Li ◽  
Long Wan ◽  
Yao Chen ◽  
Zhenhua Wang ◽  
Wentian Zhang ◽  
...  

Cardiac tissue engineering using biomaterials with or without a combination of cardiac stem cell therapy offers a new therapeutic option for repairing infarcted heart. So far, cardiac tissue scaffold is designed mainly based on natural and synthetic biomaterials, which do not mimic human myocardial extracellular matrix. This raises a fundamental issue about the biocompatibility of currently used biomaterials with myocardial tissue. Here we hypothesized that human heart valve-derived scaffold (hHVS) may provide a clinically relevant novel biomaterial for cardiac repair. In this study, human heart valve tissue was sliced into 100 μm tissue sheet by frozen-sectioning and then decellularized to form the hHVS. Upon anchoring onto the hHVS, post-infarct murine BM c-kit+ cells exhibited an increased capacity for proliferation and cardiomyogenic differentiation in vitro. When used to patch infarcted heart in a murine model of myocardial infarction, either implantation of the hHVS alone or c-kit+ cell-seeded hHVS significantly improved cardiac function, as shown by transthoracic echocardiography as well as by hemodynamic measurements via a Millar catheter, and by reduced infarct size; while c-kit+ cell-seeded hHVS was even superior to the hHVS alone. Thus, we have successfully developed a hHVS for cardiac repair. Our in vitro and in vivo observations provide the first evidence for translating the hHVS-based cardiac tissue engineering into clinical strategies to treat myocardial infarction.


2011 ◽  
Vol 9 (66) ◽  
pp. 1-19 ◽  
Author(s):  
Jayarama Reddy Venugopal ◽  
Molamma P. Prabhakaran ◽  
Shayanti Mukherjee ◽  
Rajeswari Ravichandran ◽  
Kai Dan ◽  
...  

World Health Organization estimated that heart failure initiated by coronary artery disease and myocardial infarction (MI) leads to 29 per cent of deaths worldwide. Heart failure is one of the leading causes of death in industrialized countries and is expected to become a global epidemic within the twenty-first century. MI, the main cause of heart failure, leads to a loss of cardiac tissue impairment of left ventricular function. The damaged left ventricle undergoes progressive ‘remodelling’ and chamber dilation, with myocyte slippage and fibroblast proliferation. Repair of diseased myocardium with in vitro -engineered cardiac muscle patch/injectable biopolymers with cells may become a viable option for heart failure patients. These events reflect an apparent lack of effective intrinsic mechanism for myocardial repair and regeneration. Motivated by the desire to develop minimally invasive procedures, the last 10 years observed growing efforts to develop injectable biomaterials with and without cells to treat cardiac failure. Biomaterials evaluated include alginate, fibrin, collagen, chitosan, self-assembling peptides, biopolymers and a range of synthetic hydrogels. The ultimate goal in therapeutic cardiac tissue engineering is to generate biocompatible, non-immunogenic heart muscle with morphological and functional properties similar to natural myocardium to repair MI. This review summarizes the properties of biomaterial substrates having sufficient mechanical stability, which stimulates the native collagen fibril structure for differentiating pluripotent stem cells and mesenchymal stem cells into cardiomyocytes for cardiac tissue engineering.


Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 914
Author(s):  
Arsalan Ul Haq ◽  
Felicia Carotenuto ◽  
Paolo Di Nardo ◽  
Roberto Francini ◽  
Paolo Prosposito ◽  
...  

Myocardial infarction (MI) is the consequence of coronary artery thrombosis resulting in ischemia and necrosis of the myocardium. As a result, billions of contractile cardiomyocytes are lost with poor innate regeneration capability. This degenerated tissue is replaced by collagen-rich fibrotic scar tissue as the usual body response to quickly repair the injury. The non-conductive nature of this tissue results in arrhythmias and asynchronous beating leading to total heart failure in the long run due to ventricular remodelling. Traditional pharmacological and assistive device approaches have failed to meet the utmost need for tissue regeneration to repair MI injuries. Engineered heart tissues (EHTs) seem promising alternatives, but their non-conductive nature could not resolve problems such as arrhythmias and asynchronous beating for long term in-vivo applications. The ability of nanotechnology to mimic the nano-bioarchitecture of the extracellular matrix and the potential of cardiac tissue engineering to engineer heart-like tissues makes it a unique combination to develop conductive constructs. Biomaterials blended with conductive nanomaterials could yield conductive constructs (referred to as extrinsically conductive). These cell-laden conductive constructs can alleviate cardiac functions when implanted in-vivo. A succinct review of the most promising applications of nanomaterials in cardiac tissue engineering to repair MI injuries is presented with a focus on extrinsically conductive nanomaterials.


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