Comment on “International Stem Cell”: The EU Court of Justice Revisits the Patentability of Processes for the Production of Human Stem Cells – The Decision in International Stem Cell Corporation

2015 ◽  
Vol 46 (6) ◽  
pp. 740-748 ◽  
Author(s):  
Paolo Stazi
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Human Stem Cells ◽  
Court Of Justice ◽  
The Eu

scholarly journals Telomere length set point regulation in human pluripotent stem cells critically depends on the shelterin protein TPP1

2020 ◽  
Vol 31 (23) ◽  
pp. 2583-2596
Author(s):  
John M. Boyle ◽  
Kelsey M. Hennick ◽  
Samuel G. Regalado ◽  
Jacob M. Vogan ◽  
Xiaozhu Zhang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Telomere Length ◽  
Pluripotent Stem Cells ◽  
Human Stem Cells ◽  
Set Point ◽  
Hypomorphic Allele ◽  
Point Control ◽  
Set Point Control ◽  
Stem Cell Lines

To better understand telomere length set point control in human stem cells, we generated knockout stem cell lines for TPP1 and contrasted their phenotypes with those of homozygous TPP1 L104A mutant stem cells. This comparison reveals that TPP1 L104A is not a hypomorphic allele but formally establishes TPP1 L104 as a dissociation of function mutant.

Research and Findings

2009 ◽  
Vol 13 (04) ◽  
pp. 76-79
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Disease Management ◽  
Cancer Risk ◽  
Cancer Patients ◽  
Drug Dosage ◽  
Human Stem Cells ◽  
New Materials ◽  
East Asians ◽  
Lower Drug

Australian Scientists Reach Breakthrough in Stem Cell Research. Breakthrough in Disease Management of Chikungunya Fever by Singapore Researchers. MicroRNAs Lead to Formation or Suppression of Tumors? Singapore and US Scientists Share Results. Singapore and South Korea to Invent More New Materials. Asian Blood Cancer Patients Respond Better with a Lower Drug Dosage. Safer Ethical Way to Make Human Stem Cells. "Blushing" Response from Alcohol Drinking Signals Increased Cancer Risk Among East Asians.

Assessment of Induced Pluripotent Stem Cell-Derived Cardiomyocyte Contractility Using Micropost Arrays

2013 ◽  
Author(s):  
Marita L. Rodriguez ◽  
Charles E. Murry ◽  
Nathan J. Sniadecki
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Induced Pluripotent Stem Cell ◽  
Heart Tissue ◽  
Patient Specific ◽  
Human Stem Cells ◽  
Cell Therapies ◽  
Cardiomyocyte Contractility ◽  
Induced Pluripotent ◽  
Contractile Forces

Cardiovascular stem cell therapies have shown increasing promise as a potential therapeutic means for reversing the effects of a myocardial infarction [1]. Out of the currently available sources of human stem cells, human induced pluripotent stem cells (hiPSCs) are very promising in that: the number of cell lines that can be induced to the pluripotent state is extremely vast, they serve as a potential source for patient-specific cardiomyocytes, and their use is non-controversial. However, before they can be used feasibly in a clinical setting, the functional engraftment of these cells into the host tissue must be improved [2]. It is hypothesized that the structural and functional maturity of the stem-cell derived cardiomyocytes prior to implantation, may significantly affect the ability of these cells to engraft with resident heart tissue [3]. One of the most important functional characteristics of a cardiomyocyte is its ability to produce contractile forces. However, assessing the contractile properties of single iPS-CMs is a difficult task. iPS-CMs generally have relatively unorganized cytoskeletons, with stress fibers in multiple directions. This trait renders one or two-point force assays ineffectual in determining total cell forces. Furthermore, iPS-CMs don’t spread well on tissue culture surfaces, which make two-dimensional force measurements almost impossible.

scholarly journals Reconstructing human early embryogenesis in vitro with pluripotent stem cells

2021 ◽  
Author(s):  
Berna Sozen ◽  
Victoria Jorgensen ◽  
Meng Zhu ◽  
Tongtong Cui ◽  
Magdalena Zernicka-Goetz
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Human Development ◽  
Pluripotent Stem Cells ◽  
Molecular Mechanisms ◽  
Early Embryo ◽  
Human Stem Cells ◽  
Amniotic Cavity ◽  
Early Human

ABSTRACTUnderstanding human development is of fundamental biological and clinical importance. Yet despite its significance, insights into early developmental events in humans still remain largely unknown. While recent advances show that stem cells can mimic embryogenesis1–9 to unravel hidden developmental mechanisms, a stem cell-based model of early human embryogenesis is lacking. Here, we use human extended pluripotent stem cells10to reconstitute early human development in 3-dimensions and recapitulate early embryo-like events. We first perform a systematic characterisation to reveal unique signalling requirements for building the human pre-implantation blastocyst. Further, we show that these in vitro stem cell-derived blastocyst-like structures are able to undertake spatiotemporal self-organisation to mimic peri-implantation remodelling in which a polarised rosette opens up the amniotic cavity within a developing disc. The hallmarks of human early development displayed by this stem cell-based in vitro model mimics features of embryonic day 3 to day 9/10 of natural development. Thus, this platform represents a tractable model system to contribute to the basic understanding of cellular and molecular mechanisms governing early embryonic events in humans and to provide valuable insights into the design of differentiation protocols for human stem cells in clinical applications.

scholarly journals Application potential and plasticity of human stem cells

2019 ◽  
Vol 7 (3) ◽  
pp. 140-145 ◽  
Author(s):  
Mikołaj Lorenz ◽  
Paul Mozdziak ◽  
Bartosz Kempisty ◽  
Marta Dyszkiewicz-Konwińska
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Neural Stem Cells ◽  
Cell Isolation ◽  
Human Stem Cells ◽  
Heart Attacks ◽  
Isolation Methods ◽  
Application Potential ◽  
The Subject ◽  
Stem Cell Isolation

AbstractSignificant advances have been achieved in the study of stem cells over recent years. Stem cell isolation, their plasticity, differentiation and pre-clinical and clinical applications have undergone a significant study. The objective of this paper is to review the advances in stem cell isolation methods. There are many types of stem cells in the article. Isolation and subsequent differentiation of among others: Human adipose-derived stem cells, cancer stem cells, neural stem cells and mesenchymal stem cells. The subject of Endometrial mesenchymal stromal cells, whose isolation methods are relatively new, was also raised. Attention was paid to the development of preclinical studies using Dental Pulp Stem Cells in various diseases such as Parkinson’s disease or Alzheimer’s disease. Progress in research on the use of stem cells in the treatment of heart attacks, burns, bone injuries and the use of neural stem cells in animal models as an attempt to treat multiple sclerosis has been described.Running title: Potential and plasticity of stem cells

Concise Review; Effects of Antibiotics and Antimycotics on the Biological Properties of Human Pluripotent and Multipotent Stem Cells

2020 ◽  
Vol 16 ◽  
Author(s):  
Maryam Farzaneh
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Pluripotent Stem Cells ◽  
Disease Modeling ◽  
Culture Media ◽  
Embryonic Stem ◽  
Great Promise ◽  
Human Stem Cells ◽  
Multipotent Stem Cells ◽  
The Impact

Abstract:: Human pluripotent stem cells (PSCs) including embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) have the remarkable potential to self-renew and develop into various cell lineages. Human mesenchymal stem cells (MSCs) or multipotent stem cells that are present in various organs can self-renew and differentiate into multiple mesenchymal lineages. Both human PSCs and MSCs hold great promise in cell-based therapies, disease modeling, drug discovery, and regenerative medicine. Human stem cells must be cultured under the optimal conditions to use them in transplantology. Therefore, researchers must ensure the sterility of human stem cell lines. Bacterial contamination is a common problem in laboratories and major precautions are required to detect the types of microorganisms, eliminate, and prevent contamination in cell cultures. Stem cell culture media usually contains antibiotics and antimycotics such as penicillin-streptomycin (pen-strep), gentamicin, and amphotericin B (AmB) to avoid bacterial, fungal, and yeast contaminants. Numerous publications recognized the serious effect of antibiotics and antimycotics on in vitro properties of human stem cells, including proliferation, differentiation, survival, and genetic instability. This review study aimed to understand the impact of routinely used antibiotics and antimycotics such as pen-strep, gentamicin, and AmB on viability, proliferation, and functional properties (differentiation and pluripotency) of human PSCs and MSCs.

scholarly journals Single-Use Bioreactors for Human Pluripotent and Adult Stem Cells: Towards Regenerative Medicine Applications

2021 ◽  
Vol 8 (5) ◽  
pp. 68
Author(s):  
Diogo E.S. Nogueira ◽  
Joaquim M.S. Cabral ◽  
Carlos A.V. Rodrigues
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Regenerative Medicine ◽  
Large Scale ◽  
Adult Stem Cells ◽  
Regulatory Agencies ◽  
Human Stem Cells ◽  
Stem Cell Expansion ◽  
Single Use

Research on human stem cells, such as pluripotent stem cells and mesenchymal stromal cells, has shown much promise in their use for regenerative medicine approaches. However, their use in patients requires large-scale expansion systems while maintaining the quality of the cells. Due to their characteristics, bioreactors have been regarded as ideal platforms to harbour stem cell biomanufacturing at a large scale. Specifically, single-use bioreactors have been recommended by regulatory agencies due to reducing the risk of product contamination, and many different systems have already been developed. This review describes single-use bioreactor platforms which have been used for human stem cell expansion and differentiation, along with their comparison with reusable systems in the development of a stem cell bioprocess for clinical applications.

scholarly journals Human stem cells – sources, sourcing and in vitro methods

2021 ◽  
Vol 9 (2) ◽  
pp. 73-85
Author(s):  
Alicja Szubarga ◽  
Marta Kamińska ◽  
Wiktoria Kotlarz ◽  
Stefan Malewski ◽  
Wiktoria Zawada ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Stem Cell ◽  
Type I Diabetes ◽  
Embryonic Stem ◽  
The Body ◽  
Type I ◽  
Human Stem Cells ◽  
Hematopoietic Stem

Abstract Stem cells are an important subject of research, and are increasingly used in the treatment of various diseases. Due to the development of advanced in vitro techniques, they have become an integral part of modern medicine. The sources of human stem cells are primarily bone marrow and adipose tissue, although non – embryonic stem cells are also scattered throughout the body. Notably, recent research has focused on stem cells found in the oral cavity, both in the dental pulp and oral mucosa. Furthermore, isolation of stem cells from umbilical cord blood is also becoming increasingly popular, while wharton’s jelly and amniotic fluid also seem to be an interesting source of stem cells. The safety and efficacy of stem cells use can be established by animal studies, which are a key element of preclinical research. Mouse, rat and pig models allow for testing of stem cell therapies. Recent studies primarily use mesenchymal stem cells such as mouse – adipose derived mesenchymal stem cells and mouse and rat hematopoietic stem cells. Great hope for future therapies is the use of bioengineering to program cells into induced stem cells, which have the biggest ability for differentiation and transdifferentiation, which carries no risk of teratogenesis. Stem cells are used in many areas of medicine, especially in regenerative medicine, with a growing interest in orthopedics and in the treatment of heart failure. Mesenchymal stem cells are the most used stem cell type, which despite their limited ability to differentiate, give great therapeutic results, mainly due to their immunomodulating effect. Recent studies have even shown that the use of mesenchymal stem cells may be useful in the treatment of COVID-19. Moreover, Research on the use of mesenchymal stem cells in the treatment of Crohn’s disease, acute-graft-versus-host disease and type I diabetes are also promising. The aim of the current review is to present and systematize current knowledge about stem cells, their use and related in vitro research. Running title: Research and use of human stem cells

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