scholarly journals Stirred Suspension Bioreactor Culture of Porcine Induced Pluripotent Stem Cells

2019 ◽  
Author(s):  
Kyle Burrell ◽  
Rkia Dardari ◽  
Taylor Goldsmith ◽  
Derek Toms ◽  
Daniel A.F. Villagomez ◽  
...  
Keyword(s):  
Stem Cells ◽  
Induced Pluripotent Stem Cells ◽  
Pluripotent Stem Cells ◽  
Scale Up ◽  
Culture Method ◽  
The Body ◽  
Future Research ◽  
Bioreactor Culture ◽  
Cell Numbers ◽  
Induced Pluripotent

AbstractInduced pluripotent stem cells (iPSCs) are an attractive cell source for regenerative medicine and the development of therapies, as they can proliferate indefinitely under defined conditions and differentiate into any cell type in the body. Large scale expansion of cells is limited in adherent culture, making it difficult to obtain adequate cell numbers for research. It has been previously shown that stirred suspension bioreactors (SSBs) can be used to culture mouse and human stem cells. Pigs are important pre-clinical models for stem cell research. Therefore, this study investigated the use of SSBs as an alternative culture method for the expansion of iPSCs. Using an established porcine iPSC line as well as a new cell line derived and characterized in the current study, we report that porcine iPSCs (piPSCs) can grow in SSB while maintaining characteristics of pluripotency and karyotypic stability similar to cells grown in traditional two-dimensional static culture. This culture method provides a suitable platform for scale up of cell culture to provide adequate cell numbers for future research applications involving porcine induced pluripotent stem cells.

scholarly journals Investigating the feasibility of scale up and automation of human induced pluripotent stem cells cultured in aggregates in feeder free conditions

2014 ◽  
Vol 173 ◽  
pp. 53-58 ◽  
Author(s):  
Filipa A.C. Soares ◽  
Amit Chandra ◽  
Robert J. Thomas ◽  
Roger A. Pedersen ◽  
Ludovic Vallier ◽  
...  
Keyword(s):  
Stem Cells ◽  
Induced Pluripotent Stem Cells ◽  
Pluripotent Stem Cells ◽  
Scale Up ◽  
Induced Pluripotent ◽  
Cells Cultured

scholarly journals Versatility of Induced Pluripotent Stem Cells (iPSCs) for Improving the Knowledge on Musculoskeletal Diseases

2020 ◽  
Vol 21 (17) ◽  
pp. 6124
Author(s):  
Clara Sanjurjo-Rodríguez ◽  
Rocío Castro-Viñuelas ◽  
María Piñeiro-Ramil ◽  
Silvia Rodríguez-Fernández ◽  
Isaac Fuentes-Boquete ◽  
...  
Keyword(s):  
Stem Cells ◽  
Induced Pluripotent Stem Cells ◽  
Pluripotent Stem Cells ◽  
Disease Modeling ◽  
Musculoskeletal Diseases ◽  
The Body ◽  
Cellular Mechanisms ◽  
Induced Pluripotent ◽  
New Strategies

Induced pluripotent stem cells (iPSCs) represent an unlimited source of pluripotent cells capable of differentiating into any cell type of the body. Several studies have demonstrated the valuable use of iPSCs as a tool for studying the molecular and cellular mechanisms underlying disorders affecting bone, cartilage and muscle, as well as their potential for tissue repair. Musculoskeletal diseases are one of the major causes of disability worldwide and impose an important socio-economic burden. To date there is neither cure nor proven approach for effectively treating most of these conditions and therefore new strategies involving the use of cells have been increasingly investigated in the recent years. Nevertheless, some limitations related to the safety and differentiation protocols among others remain, which humpers the translational application of these strategies. Nonetheless, the potential is indisputable and iPSCs are likely to be a source of different types of cells useful in the musculoskeletal field, for either disease modeling or regenerative medicine. In this review, we aim to illustrate the great potential of iPSCs by summarizing and discussing the in vitro tissue regeneration preclinical studies that have been carried out in the musculoskeletal field by using iPSCs.

scholarly journals Biomedical Application of Dental Tissue-Derived Induced Pluripotent Stem Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Jung-Hwan Lee ◽  
Seog-Jin Seo
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Induced Pluripotent Stem Cells ◽  
Pluripotent Stem Cells ◽  
Biomedical Application ◽  
Donor Site ◽  
Donor Site Morbidity ◽  
The Body ◽  
Dental Tissue ◽  
Induced Pluripotent

The academic researches and clinical applications in recent years found interest in induced pluripotent stem cells (iPSCs-) based regenerative medicine due to their pluripotency able to differentiate into any cell types in the body without using embryo. However, it is limited in generating iPSCs from adult somatic cells and use of these cells due to the low stem cell potency and donor site morbidity. In biomedical applications, particularly, dental tissue-derived iPSCs have been getting attention as a type of alternative sources for regenerating damaged tissues due to high potential of stem cell characteristics, easy accessibility and attainment, and their ectomesenchymal origin, which allow them to have potential for nerve, vessel, and dental tissue regeneration. This paper will cover the overview of dental tissue-derived iPSCs and their application with their advantages and drawbacks.

Selective Culture Method for Hepatocyte-like Cells Differentiated from Human Induced Pluripotent Stem Cells

2014 ◽  
Vol 29 (5) ◽  
pp. 407-413 ◽  
Author(s):  
Yuki Kondo ◽  
Sachimi Yoshihashi ◽  
Kayo Mimori ◽  
Ruri Ogihara ◽  
Yoshinori Kanehama ◽  
...  
Keyword(s):  
Stem Cells ◽  
Induced Pluripotent Stem Cells ◽  
Pluripotent Stem Cells ◽  
Culture Method ◽  
Induced Pluripotent

scholarly journals Therapeutic Potential of Human Induced Pluripotent Stem Cells and Renal Progenitor Cells in Experimental Chronic Kidney Disease

2020 ◽  
Author(s):  
Patrícia de Carvalho Ribeiro ◽  
Fernando Henrique Lojudice ◽  
Ida Maria Maximina Fernandes-Charpiot ◽  
Maria Alice Sperto Ferreira Baptista ◽  
Stanley de Almeida Araújo ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Stem Cells ◽  
Kidney Disease ◽  
Induced Pluripotent Stem Cells ◽  
Pluripotent Stem Cells ◽  
The Body ◽  
Positive Staining ◽  
Post Surgery ◽  
Induced Pluripotent ◽  
Renal Progenitor

Abstract BackgroundChronic Kidney Disease (CKD) is a global public health problem. Regenerative medicine using pluripotent stem cells represents an attractive therapeutic approach for the treatment of CKD.MethodsWe transplanted Mitomycin C (MMC)-treated human induced pluripotent stem cells (hiPSCs) and renal progenitors cells (RPCs) into a CKD rat model system. The RPCs and hiPSCs cells were characterized by immunofluorescence and qRT-PCR. Untreated 5/6 nephrectomized rats were compared to CKD animals receiving the same amount of MMC-treated hiPSCs or RPCs. Renal function, histology and immunohistochemistry were evaluated 45 days post-surgery. ResultsWe successfully generated hiPSCs from peripheral blood and differentiated them into RPCs expressing renal progenitor genes (PAX2, WT1, SIX2, and SALL1) and podocyte-related genes (SYNPO, NPHS1). RPCs also exhibited reduced OCT4 expression, confirming the loss of pluripotency. After cell transplantation into CKD rats, the body weight change was significantly increased in both hiPSC and RPC groups, in comparison with the control group. Creatinine clearance (CCr) was preserved only in the hiPSC group. Similarly, the number of macrophages in the kidneys of the hiPSC group reached a statistically significant reduction, when compared to control rats. Both treatments reduced positive staining for the marker α-smooth muscle actin. Histological features showed decreased tubulointerstitial damage (interstitial fibrosis and tubular atrophy) as well as a reduction in glomerulosclerosis in both iPSC and RPC groups.ConclusionsIn conclusion, we describe that both MMC-treated hiPSCs and RPCs exert beneficial effects in attenuating CKD progression. Both cell types were equally efficient to reduce histological damage and weight loss caused by CKD. hiPSCs seems to be more efficient than RPCs, possibly due to an anti-inflammatory mechanism triggered by hiPSCs. These results demonstrate that the use of MMC-treated hiPSCs and RPCs improve clinical and histological CKD parameters, avoided tumor formation, and therefore may be a promising cell therapy strategy for CKD.

scholarly journals Standards for Deriving Nonhuman Primate-Induced Pluripotent Stem Cells, Neural Stem Cells and Dopaminergic Lineage

2018 ◽  
Vol 19 (9) ◽  
pp. 2788 ◽  
Author(s):  
Guang Yang ◽  
Hyenjong Hong ◽  
April Torres ◽  
Kristen Malloy ◽  
Gourav Choudhury ◽  
...  
Keyword(s):  
Stem Cells ◽  
Neural Stem Cells ◽  
Induced Pluripotent Stem Cells ◽  
Cell Lines ◽  
Pluripotent Stem Cells ◽  
In Vitro Models ◽  
The Body ◽  
Model Systems ◽  
Induced Pluripotent

Humans and nonhuman primates (NHP) are similar in behavior and in physiology, specifically the structure, function, and complexity of the immune system. Thus, NHP models are desirable for pathophysiology and pharmacology/toxicology studies. Furthermore, NHP-derived induced pluripotent stem cells (iPSCs) may enable transformative developmental, translational, or evolutionary studies in a field of inquiry currently hampered by the limited availability of research specimens. NHP-iPSCs may address specific questions that can be studied back and forth between in vitro cellular assays and in vivo experimentations, an investigational process that in most cases cannot be performed on humans because of safety and ethical issues. The use of NHP model systems and cell specific in vitro models is evolving with iPSC-based three-dimensional (3D) cell culture systems and organoids, which may offer reliable in vitro models and reduce the number of animals used in experimental research. IPSCs have the potential to give rise to defined cell types of any organ of the body. However, standards for deriving defined and validated NHP iPSCs are missing. Standards for deriving high-quality iPSC cell lines promote rigorous and replicable scientific research and likewise, validated cell lines reduce variability and discrepancies in results between laboratories. We have derived and validated NHP iPSC lines by confirming their pluripotency and propensity to differentiate into all three germ layers (ectoderm, mesoderm, and endoderm) according to standards and measurable limits for a set of marker genes. The iPSC lines were characterized for their potential to generate neural stem cells and to differentiate into dopaminergic neurons. These iPSC lines are available to the scientific community. NHP-iPSCs fulfill a unique niche in comparative genomics to understand gene regulatory principles underlying emergence of human traits, in infectious disease pathogenesis, in vaccine development, and in immunological barriers in regenerative medicine.

Clinical Application of Induced Pluripotent Stem Cells in Cardiovascular Medicine

Cardiology ◽  
2015 ◽  
Vol 131 (4) ◽  
pp. 236-244 ◽  
Author(s):  
Hong-jie Chi ◽  
Song Gao ◽  
Xin-chun Yang ◽  
Jun Cai ◽  
Wen-shu Zhao ◽  
...  
Keyword(s):  
Stem Cells ◽  
Induced Pluripotent Stem Cells ◽  
Clinical Application ◽  
Drug Screening ◽  
Pluripotent Stem Cells ◽  
Disease Diagnosis ◽  
The Body ◽  
Patient Specific ◽  
Human Ipscs ◽  
Induced Pluripotent

Induced pluripotent stem cells (iPSCs) are generated by reprogramming human somatic cells through the overexpression of four transcription factors: Oct4, Sox2, Klf4 and c-Myc. iPSCs are capable of indefinite self-renewal, and they can differentiate into almost any type of cell in the body. These cells therefore offer a highly valuable therapeutic strategy for tissue repair and regeneration. Recent experimental and preclinical research has revealed their potential for cardiovascular disease diagnosis, drug screening and cellular replacement therapy. Nevertheless, significant challenges remain in terms of the development and clinical application of human iPSCs. Here, we review current progress in research related to patient-specific iPSCs for ex vivo modeling of cardiovascular disorders and drug screening, and explore the potential of human iPSCs for use in the field of cardiovascular regenerative medicine.

scholarly journals Induced Pluripotent Stem Cells and Their Use in Human Models of Disease and Development

2019 ◽  
Vol 99 (1) ◽  
pp. 79-114 ◽  
Author(s):  
Peter Karagiannis ◽  
Kazutoshi Takahashi ◽  
Megumu Saito ◽  
Yoshinori Yoshida ◽  
Keisuke Okita ◽  
...  
Keyword(s):  
Stem Cells ◽  
Induced Pluripotent Stem Cells ◽  
Molecular Mechanism ◽  
Pluripotent Stem Cells ◽  
Ectopic Expression ◽  
Developmental State ◽  
The Body ◽  
Human Ipscs ◽  
Wide Range ◽  
Induced Pluripotent

The discovery of somatic cell nuclear transfer proved that somatic cells can carry the same genetic code as the zygote, and that activating parts of this code are sufficient to reprogram the cell to an early developmental state. The discovery of induced pluripotent stem cells (iPSCs) nearly half a century later provided a molecular mechanism for the reprogramming. The initial creation of iPSCs was accomplished by the ectopic expression of four specific genes (OCT4, KLF4, SOX2, and c-Myc; OSKM). iPSCs have since been acquired from a wide range of cell types and a wide range of species, suggesting a universal molecular mechanism. Furthermore, cells have been reprogrammed to iPSCs using a myriad of methods, although OSKM remains the gold standard. The sources for iPSCs are abundant compared with those for other pluripotent stem cells; thus the use of iPSCs to model the development of tissues, organs, and other systems of the body is increasing. iPSCs also, through the reprogramming of patient samples, are being used to model diseases. Moreover, in the 10 years since the first report, human iPSCs are already the basis for new cell therapies and drug discovery that have reached clinical application. In this review, we examine the generation of iPSCs and their application to disease and development.

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