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Taherian M, Bayati P, Mojtabavi N. Stem cell-based therapy for fibrotic diseases: mechanisms and pathways. Stem Cell Res Ther 2024; 15:170. [PMID: 38886859 PMCID: PMC11184790 DOI: 10.1186/s13287-024-03782-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 06/04/2024] [Indexed: 06/20/2024] Open
Abstract
Fibrosis is a pathological process, that could result in permanent scarring and impairment of the physiological function of the affected organ; this condition which is categorized under the term organ failure could affect various organs in different situations. The involvement of the major organs, such as the lungs, liver, kidney, heart, and skin, is associated with a high rate of morbidity and mortality across the world. Fibrotic disorders encompass a broad range of complications and could be traced to various illnesses and impairments; these could range from simple skin scars with beauty issues to severe rheumatologic or inflammatory disorders such as systemic sclerosis as well as idiopathic pulmonary fibrosis. Besides, the overactivation of immune responses during any inflammatory condition causing tissue damage could contribute to the pathogenic fibrotic events accompanying the healing response; for instance, the inflammation resulting from tissue engraftment could cause the formation of fibrotic scars in the grafted tissue, even in cases where the immune system deals with hard to clear infections, fibrotic scars could follow and cause severe adverse effects. A good example of such a complication is post-Covid19 lung fibrosis which could impair the life of the affected individuals with extensive lung involvement. However, effective therapies that halt or slow down the progression of fibrosis are missing in the current clinical settings. Considering the immunomodulatory and regenerative potential of distinct stem cell types, their application as an anti-fibrotic agent, capable of attenuating tissue fibrosis has been investigated by many researchers. Although the majority of the studies addressing the anti-fibrotic effects of stem cells indicated their potent capabilities, the underlying mechanisms, and pathways by which these cells could impact fibrotic processes remain poorly understood. Here, we first, review the properties of various stem cell types utilized so far as anti-fibrotic treatments and discuss the challenges and limitations associated with their applications in clinical settings; then, we will summarize the general and organ-specific mechanisms and pathways contributing to tissue fibrosis; finally, we will describe the mechanisms and pathways considered to be employed by distinct stem cell types for exerting anti-fibrotic events.
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Affiliation(s)
- Marjan Taherian
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Paria Bayati
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Nazanin Mojtabavi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
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2
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Guo S, Wang D. Novel insights into the potential applications of stem cells in pulmonary hypertension therapy. Respir Res 2024; 25:237. [PMID: 38849894 PMCID: PMC11162078 DOI: 10.1186/s12931-024-02865-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 06/04/2024] [Indexed: 06/09/2024] Open
Abstract
Pulmonary hypertension (PH) refers to a group of deadly lung diseases characterized by vascular lesions in the microvasculature and a progressive increase in pulmonary vascular resistance. The prevalence of PH has increased over time. Currently, the treatment options available for PH patients have limited efficacy, and none of them can fundamentally reverse pulmonary vascular remodeling. Stem cells represent an ideal seed with proven efficacy in clinical studies focusing on liver, cardiovascular, and nerve diseases. Since the potential therapeutic effect of mesenchymal stem cells (MSCs) on PH was first reported in 2006, many studies have demonstrated the efficacy of stem cells in PH animal models and suggested that stem cells can help slow the deterioration of lung tissue. Existing PH treatment studies basically focus on the paracrine action of stem cells, including protein regulation, exosome pathway, and cell signaling; however, the specific mechanisms have not yet been clarified. Apoptotic and afunctional pulmonary microvascular endothelial cells (PMVECs) and alveolar epithelial cells (AECs) are two fundamental promoters of PH although they have not been extensively studied by researchers. This review mainly focuses on the supportive communication and interaction between PMVECs and AECs as well as the potential restorative effect of stem cells on their injury. In the future, more studies are needed to prove these effects and explore more radical cures for PH.
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Affiliation(s)
- Sijia Guo
- Stem Cell Laboratory, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China.
| | - Dachun Wang
- Stem Cell Laboratory, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
- The Brown Foundation Institute of Molecular Medicine for the prevention of Human Diseases, University of Texas Medical School at Houston, Houston, TX, USA
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3
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Wartalski K, Wiater J, Maciak P, Pastuła A, Lis GJ, Samiec M, Trzcińska M, Duda M. Anabolic Steroids Activate the NF-κB Pathway in Porcine Ovarian Putative Stem Cells Independently of the ZIP-9 Receptor. Int J Mol Sci 2024; 25:2833. [PMID: 38474077 DOI: 10.3390/ijms25052833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/13/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Boldenone (Bdn) and nandrolone (Ndn) are anabolic androgenic steroids (AASs) that, as our previous studies have shown, may increase the risk of neoplastic transformation of porcine ovarian putative stem cells (poPSCs). The NF-κB pathway may be important in the processes of carcinogenesis and tumour progression. Therefore, in this work, we decided to test the hypothesis of whether Bdn and Ndn can activate the NF-κB pathway by acting through the membrane androgen receptor ZIP-9. For this purpose, the expression profiles of both genes involved in the NF-κB pathway and the gene coding for the ZIP-9 receptor were checked. The expression and localization of proteins of this pathway in poPSCs were also examined. Additionally, the expression of the ZIP-9 receptor and the concentration of the NF-κB1 and 2 protein complex were determined. Activation of the NF-κB pathway was primarily confirmed by an increase in the relative abundances of phosphorylated forms of RelA protein and IκBα inhibitor. Reduced quantitative profiles pinpointed not only for genes representing this pathway but also for unphosphorylated proteins, and, simultaneously, decreased concentration of the NF-κB1 and 2 complex may indicate post-activation silencing by negative feedback. However, the remarkably and sustainably diminished expression levels noticed for the SLC39A9 gene and ZIP-9 protein suggest that this receptor does not play an important role in the regulation of the NF-κB pathway.
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Affiliation(s)
- Kamil Wartalski
- Department of Histology, Jagiellonian University Medical College, Kopernika 7 Street, 31-034 Krakow, Poland
| | - Jerzy Wiater
- Department of Histology, Jagiellonian University Medical College, Kopernika 7 Street, 31-034 Krakow, Poland
| | - Patrycja Maciak
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387 Krakow, Poland
| | - Agnieszka Pastuła
- Department of Genetics and Evolutionism, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387 Krakow, Poland
| | - Grzegorz J Lis
- Department of Histology, Jagiellonian University Medical College, Kopernika 7 Street, 31-034 Krakow, Poland
| | - Marcin Samiec
- Department of Reproductive Biotechnology and Cryoconservation, National Research Institute of Animal Production, Krakowska 1 Street, 32-083 Balice, Poland
| | - Monika Trzcińska
- Department of Reproductive Biotechnology and Cryoconservation, National Research Institute of Animal Production, Krakowska 1 Street, 32-083 Balice, Poland
| | - Małgorzata Duda
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387 Krakow, Poland
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4
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Salehi Abar E, Vandghanooni S, Torab A, Jaymand M, Eskandani M. A comprehensive review on nanocomposite biomaterials based on gelatin for bone tissue engineering. Int J Biol Macromol 2024; 254:127556. [PMID: 37884249 DOI: 10.1016/j.ijbiomac.2023.127556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/09/2023] [Accepted: 10/18/2023] [Indexed: 10/28/2023]
Abstract
The creation of a suitable scaffold is a crucial step in the process of bone tissue engineering (BTE). The scaffold, acting as an artificial extracellular matrix, plays a significant role in determining the fate of cells by affecting their proliferation and differentiation in BTE. Therefore, careful consideration should be given to the fabrication approach and materials used for scaffold preparation. Natural polypeptides such as gelatin and collagen have been widely used for this purpose. The unique properties of nanoparticles, which vary depending on their size, charge, and physicochemical properties, have demonstrated potential in solving various challenges encountered in BTE. Therefore, nanocomposite biomaterials consisting of polymers and nanoparticles have been extensively used for BTE. Gelatin has also been utilized in combination with other nanomaterials to apply for this purpose. Composites of gelatin with various types of nanoparticles are particularly promising for creating scaffolds with superior biological and physicochemical properties. This review explores the use of nanocomposite biomaterials based on gelatin and various types of nanoparticles together for applications in bone tissue engineering.
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Affiliation(s)
- Elaheh Salehi Abar
- Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Somayeh Vandghanooni
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Torab
- Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Morteza Eskandani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
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Souralova T, Hulinova D, Jeseta M, Ventruba P, Hampl A, Koutna I. Truncated vitronectin with E-cadherin enables the xeno-free derivation of human embryonic stem cells. Sci Rep 2023; 13:15062. [PMID: 37700192 PMCID: PMC10497536 DOI: 10.1038/s41598-023-42236-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/07/2023] [Indexed: 09/14/2023] Open
Abstract
Human embryonic stem cells (hESCs) have unique abilities that enable their use in cell therapy, disease modeling, and drug development. Their derivation is usually performed using a feeder layer, which is undefined and can potentially cause a contamination by xeno components, therefore there is a tendency to replace feeders with xeno-free defined substrates in recent years. Three hESC lines were successfully derived on the vitronectin with a truncated N-terminus (VTN-N) in combination with E-cadherin in xeno-free conditions for the first time, and their undifferentiated state, hESC morphology, and standard karyotypes together with their potential to differentiate into three germ layers were confirmed. These results support the conclusion that the VTN-N/E-cadherin is a suitable substrate for the xeno-free derivation of hESCs and can be used for the derivation of hESCs according to good manufacturing practices.
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Affiliation(s)
- Tereza Souralova
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- International Clinical Research Center, Cell and Tissue Engineering Facility, St. Anne's University Hospital, Pekarska 53, 602 00, Brno, Czech Republic
| | - Daniela Hulinova
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- International Clinical Research Center, Cell and Tissue Engineering Facility, St. Anne's University Hospital, Pekarska 53, 602 00, Brno, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Michal Jeseta
- Department of Gynecology and Obstetrics, Faculty of Medicine, Center of Assisted Reproduction, Masaryk University Brno and University Hospital, Obilni Trh 11, 602 00, Brno, Czech Republic
| | - Pavel Ventruba
- Department of Gynecology and Obstetrics, Faculty of Medicine, Center of Assisted Reproduction, Masaryk University Brno and University Hospital, Obilni Trh 11, 602 00, Brno, Czech Republic
| | - Ales Hampl
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- International Clinical Research Center, Cell and Tissue Regeneration, St. Anne's University Hospital, Pekarska 53, 602 00, Brno, Czech Republic
| | - Irena Koutna
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
- International Clinical Research Center, Cell and Tissue Engineering Facility, St. Anne's University Hospital, Pekarska 53, 602 00, Brno, Czech Republic.
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Jeong JH, Park KN, Kim JH, Noh K, Hur SS, Kim Y, Hong M, Chung JC, Park JH, Lee J, Son YI, Lee JH, Kim SH, Hwang Y. Self-organized insulin-producing β-cells differentiated from human omentum-derived stem cells and their in vivo therapeutic potential. Biomater Res 2023; 27:82. [PMID: 37644502 PMCID: PMC10466773 DOI: 10.1186/s40824-023-00419-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 08/17/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Human omentum-derived mesenchymal stem cells (hO-MSCs) possess great potential to differentiate into multiple lineages and have self-renewal capacity, allowing them to be utilized as patient-specific cell-based therapeutics. Although the use of various stem cell-derived β-cells has been proposed as a novel approach for treating diabetes mellitus, developing an efficient method to establish highly functional β-cells remains challenging. METHODS We aimed to develop a novel cell culture platform that utilizes a fibroblast growth factor 2 (FGF2)-immobilized matrix to regulate the adhesion and differentiation of hO-MSCs into insulin-producing β-cells via cell-matrix/cell-cell interactions. In our study, we evaluated the in vitro differentiation potential of hO-MSCs cultured on an FGF2-immobilized matrix and a round-bottom plate (RBP). Further, the in vivo therapeutic efficacy of the β-cells transplanted into kidney capsules was evaluated using animal models with streptozotocin (STZ)-induced diabetes. RESULTS Our findings demonstrated that cells cultured on an FGF2-immobilized matrix could self-organize into insulin-producing β-cell progenitors, as evident from the upregulation of pancreatic β-cell-specific markers (PDX-1, Insulin, and Glut-2). Moreover, we observed significant upregulation of heparan sulfate proteoglycan, gap junction proteins (Cx36 and Cx43), and cell adhesion molecules (E-cadherin and Ncam1) in cells cultured on the FGF2-immobilized matrix. In addition, in vivo transplantation of differentiated β-cells into animal models of STZ-induced diabetes revealed their survival and engraftment as well as glucose-sensitive production of insulin within the host microenvironment, at over 4 weeks after transplantation. CONCLUSIONS Our findings suggest that the FGF2-immobilized matrix can support initial cell adhesion, maturation, and glucose-stimulated insulin secretion within the host microenvironment. Such a cell culture platform can offer novel strategies to obtain functional pancreatic β-cells from patient-specific cell sources, ultimately enabling better treatment for diabetes mellitus.
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Affiliation(s)
- Ji Hoon Jeong
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea
| | - Ki Nam Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, 14584, Republic of Korea
| | - Joo Hyun Kim
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Cheonan Hospital, Cheonan, 31151, Republic of Korea
| | - KyungMu Noh
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea
| | - Sung Sik Hur
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
| | - Yunhye Kim
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea
| | - Moonju Hong
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
| | - Jun Chul Chung
- Department of Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, 14584, Republic of Korea
| | - Jae Hong Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Cheonan Hospital, Cheonan, 31151, Republic of Korea
| | - Jongsoon Lee
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea
| | - Young-Ik Son
- Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea
| | - Ju Hun Lee
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, 15588, Republic of Korea.
| | - Sang-Heon Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
- Department of Bio-Med Engineering, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea.
| | - Yongsung Hwang
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea.
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea.
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7
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Wang Z. Assessing Tumorigenicity in Stem Cell-Derived Therapeutic Products: A Critical Step in Safeguarding Regenerative Medicine. Bioengineering (Basel) 2023; 10:857. [PMID: 37508884 PMCID: PMC10376867 DOI: 10.3390/bioengineering10070857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/08/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Stem cells hold promise in regenerative medicine due to their ability to proliferate and differentiate into various cell types. However, their self-renewal and multipotency also raise concerns about their tumorigenicity during and post-therapy. Indeed, multiple studies have reported the presence of stem cell-derived tumors in animal models and clinical administrations. Therefore, the assessment of tumorigenicity is crucial in evaluating the safety of stem cell-derived therapeutic products. Ideally, the assessment needs to be performed rapidly, sensitively, cost-effectively, and scalable. This article reviews various approaches for assessing tumorigenicity, including animal models, soft agar culture, PCR, flow cytometry, and microfluidics. Each method has its advantages and limitations. The selection of the assay depends on the specific needs of the study and the stage of development of the stem cell-derived therapeutic product. Combining multiple assays may provide a more comprehensive evaluation of tumorigenicity. Future developments should focus on the optimization and standardization of microfluidics-based methods, as well as the integration of multiple assays into a single platform for efficient and comprehensive evaluation of tumorigenicity.
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Affiliation(s)
- Zongjie Wang
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208, USA
- Chan Zuckerberg Biohub Chicago, Chicago, IL 60607, USA
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8
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Abstract
Pulmonary fibrosis (PF) is a chronic and relentlessly progressive interstitial lung disease in which the accumulation of fibroblasts and extracellular matrix (ECM) induces the destruction of normal alveolar structures, ultimately leading to respiratory failure. Patients with advanced PF are unable to perform physical labor and often have concomitant cough and dyspnea, which markedly impair their quality of life. However, there is a paucity of available pharmacological therapies, and to date, lung transplantation remains the only possible treatment for patients suffering from end-stage PF; moreover, the complexity of transplantation surgery and the paucity of donors greatly restrict the application of this treatment. Therefore, there is a pressing need for alternative therapeutic strategies for this complex disease. Due to their capacity for pluripotency and paracrine actions, stem cells are promising therapeutic agents for the treatment of interstitial lung disease, and an extensive body of literature supports the therapeutic efficacy of stem cells in lung fibrosis. Although stem cell transplantation may play an important role in the treatment of PF, some key issues, such as safety and therapeutic efficacy, remain to be resolved. In this review, we summarize recent preclinical and clinical studies on the stem cell-mediated regeneration of fibrotic lungs and present an analysis of concerning issues related to stem cell therapy to guide therapeutic development for this complex disease.
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Roberts RM, Ezashi T, Temple J, Owen JR, Soncin F, Parast MM. The role of BMP4 signaling in trophoblast emergence from pluripotency. Cell Mol Life Sci 2022; 79:447. [PMID: 35877048 PMCID: PMC10243463 DOI: 10.1007/s00018-022-04478-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/24/2022] [Accepted: 07/06/2022] [Indexed: 11/03/2022]
Abstract
The Bone Morphogenetic Protein (BMP) signaling pathway has established roles in early embryonic morphogenesis, particularly in the epiblast. More recently, however, it has also been implicated in development of extraembryonic lineages, including trophectoderm (TE), in both mouse and human. In this review, we will provide an overview of this signaling pathway, with a focus on BMP4, and its role in emergence and development of TE in both early mouse and human embryogenesis. Subsequently, we will build on these in vivo data and discuss the utility of BMP4-based protocols for in vitro conversion of primed vs. naïve pluripotent stem cells (PSC) into trophoblast, and specifically into trophoblast stem cells (TSC). PSC-derived TSC could provide an abundant, reproducible, and ethically acceptable source of cells for modeling placental development.
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Affiliation(s)
- R Michael Roberts
- Division of Animal Sciences and Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - Toshihiko Ezashi
- Division of Animal Sciences and Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
- Colorado Center for Reproductive Medicine, 10290 Ridgegate Circle, Lone Tree, CO, 80124, USA
| | - Jasmine Temple
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, 2880 Torrey Pines Scenic Drive, La Jolla, CA, 92037, USA
| | - Joseph R Owen
- Sanford Consortium for Regenerative Medicine, 2880 Torrey Pines Scenic Drive, La Jolla, CA, 92037, USA
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Diego, La Jolla, CA, USA
| | - Francesca Soncin
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, 2880 Torrey Pines Scenic Drive, La Jolla, CA, 92037, USA
| | - Mana M Parast
- Department of Pathology, University of California San Diego, La Jolla, CA, USA.
- Sanford Consortium for Regenerative Medicine, 2880 Torrey Pines Scenic Drive, La Jolla, CA, 92037, USA.
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10
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Vojnits K, Nakanishi M, Porras D, Kim Y, Feng Z, Golubeva D, Bhatia M. Developing CRISPR/Cas9-Mediated Fluorescent Reporter Human Pluripotent Stem-Cell Lines for High-Content Screening. Molecules 2022; 27:molecules27082434. [PMID: 35458632 PMCID: PMC9025795 DOI: 10.3390/molecules27082434] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/03/2022] [Accepted: 04/06/2022] [Indexed: 12/22/2022] Open
Abstract
Application of the CRISPR/Cas9 system to knock in fluorescent proteins to endogenous genes of interest in human pluripotent stem cells (hPSCs) has the potential to facilitate hPSC-based disease modeling, drug screening, and optimization of transplantation therapy. To evaluate the capability of fluorescent reporter hPSC lines for high-content screening approaches, we targeted EGFP to the endogenous OCT4 locus. Resulting hPSC–OCT4–EGFP lines generated expressed EGFP coincident with pluripotency markers and could be adapted to multi-well formats for high-content screening (HCS) campaigns. However, after long-term culture, hPSCs transiently lost their EGFP expression. Alternatively, through EGFP knock-in to the AAVS1 locus, we established a stable and consistent EGFP-expressing hPSC–AAVS1–EGFP line that maintained EGFP expression during in vitro hematopoietic and neural differentiation. Thus, hPSC–AAVS1–EGFP-derived sensory neurons could be adapted to a high-content screening platform that can be applied to high-throughput small-molecule screening and drug discovery campaigns. Our observations are consistent with recent findings indicating that high-frequency on-target complexities appear following CRISPR/Cas9 genome editing at the OCT4 locus. In contrast, we demonstrate that the AAVS1 locus is a safe genomic location in hPSCs with high gene expression that does not impact hPSC quality and differentiation. Our findings suggest that the CRISPR/Cas9-integrated AAVS1 system should be applied for generating stable reporter hPSC lines for long-term HCS approaches, and they underscore the importance of careful evaluation and selection of the applied reporter cell lines for HCS purposes.
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11
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Sears KE, Gullapalli K, Trivedi D, Mihas A, Bukys MA, Jensen J. Controlling neural territory patterning from pluripotency using a systems developmental biology approach. iScience 2022; 25:104133. [PMID: 35434550 PMCID: PMC9010746 DOI: 10.1016/j.isci.2022.104133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 06/09/2021] [Accepted: 03/17/2022] [Indexed: 11/18/2022] Open
Abstract
Successful manufacture of specialized human cells requires process understanding of directed differentiation. Here, we apply high-dimensional Design of Experiments (HD-DoE) methodology to identify critical process parameters (CPPs) that govern neural territory patterning from pluripotency—the first stage toward specification of central nervous system (CNS) cell fates. Using computerized experimental design, 7 developmental signaling pathways were simultaneously perturbed in human pluripotent stem cell culture. Regionally specific genes spanning the anterior-posterior and dorsal-ventral axes of the developing embryo were measured after 3 days and mathematical models describing pathway control were developed using regression analysis. High-dimensional models revealed particular combinations of signaling inputs that induce expression profiles consistent with emerging CNS territories and defined CPPs for anterior and posterior neuroectoderm patterning. The results demonstrate the importance of combinatorial control during neural induction and challenge the use of generic neural induction strategies such as dual-SMAD inhibition, when seeking to specify particular lineages from pluripotency. Mathematical models describe pathway control of neuroectoderm marker expression Stage 1 media conditions optimized for regionally specific neuroectoderm in 3 days Optimized conditions are more consistent than dual-SMADi across hiPSC lines
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12
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Jamalpoor A, Hartvelt S, Dimopoulou M, Zwetsloot T, Brandsma I, Racz PI, Osterlund T, Hendriks G. A novel human stem cell-based biomarker assay for in vitro assessment of developmental toxicity. Birth Defects Res 2022; 114:1210-1228. [PMID: 35289129 DOI: 10.1002/bdr2.2001] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/18/2022] [Accepted: 02/23/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Testing for developmental toxicity according to the current regulatory guidelines requires large numbers of animals, making these tests very resource intensive, time-consuming, and ethically debatable. Over the past decades, several alternative in vitro assays have been developed, but these often suffered from low predictability and the inability to provide a mechanistic understanding of developmental toxicity. METHODS To identify embryotoxic compounds, we developed a human induced pluripotent stem cells (hiPSCs)-based biomarker assay. The assay is based on the differentiation of hiPSCs into functional cardiomyocytes and hepatocytes. Proper stem cell differentiation is investigated by morphological profiling and assessment of time-dependent expression patterns of cell-specific biomarkers. In this system, a decrease in the expression of the biomarker genes and morphology disruption of the differentiated cells following compound treatment indicated teratogenicity. RESULTS The hiPSCs-based biomarker assay was validated with 21 well-established in vivo animal teratogenic and non-teratogenic compounds during cardiomyocyte and hepatocyte differentiation. The in vivo teratogenic compounds (e.g., thalidomide and valproic acid) markedly disrupted morphology, functionality, and the expression pattern of the biomarker genes in either one or both cell types. Non-teratogenic chemicals generally had no effect on the morphology of differentiated cells, nor on the expression of the biomarker genes. Compared to the in vivo classification, the assay achieved high accuracy (91%), sensitivity (91%), and specificity (90%). CONCLUSION The assay, which we named ReproTracker®, is a state-of-the-art in vitro method that can identify the teratogenicity potential of new pharmaceuticals and chemicals and signify the outcome of in vivo test systems.
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Affiliation(s)
- Amer Jamalpoor
- Toxys B.V., Leiden Bio Science Park, Oegstgeest, The Netherlands
| | - Sabine Hartvelt
- Toxys B.V., Leiden Bio Science Park, Oegstgeest, The Netherlands
| | - Myrto Dimopoulou
- Toxys B.V., Leiden Bio Science Park, Oegstgeest, The Netherlands
| | - Tom Zwetsloot
- Toxys B.V., Leiden Bio Science Park, Oegstgeest, The Netherlands
| | - Inger Brandsma
- Toxys B.V., Leiden Bio Science Park, Oegstgeest, The Netherlands
| | - Peter I Racz
- Toxys B.V., Leiden Bio Science Park, Oegstgeest, The Netherlands
| | - Torben Osterlund
- Toxys B.V., Leiden Bio Science Park, Oegstgeest, The Netherlands
| | - Giel Hendriks
- Toxys B.V., Leiden Bio Science Park, Oegstgeest, The Netherlands
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13
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Effects of embryonic stem cell-conditioned medium on the preimplantation development of mouse embryos. ZYGOTE 2022; 30:464-470. [PMID: 35172909 DOI: 10.1017/s0967199421000575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The production of high-quality embryos in the laboratory and a successful pregnancy are closely related to the condition and contents of oocyte and embryo culture media. In this study, we investigated the effects of embryonic stem cell-conditioned medium (ESCCM) and embryonic stem cells growth medium (ESCGM) compared with potassium-enriched simplex optimized medium (KSOM) on preimplantation embryo development stages during natural or in vitro fertilization (IVF). Birth rate of pups was measured. To obtain mature oocytes, and 2-cell and 8-cell embryos, human chorionic gonadotropin (HCG) was injected 48 h after i.p. injection of 5 units of pregnant mare serum gonadotropin. Mature oocytes were obtained from non-mated female mice 14 h after HCG injection. To obtain 2-cell and 8-cell embryos, mated female mice, 1 day and 3 days, respectively, after HCG injection, were used. Mature oocytes were fertilized in HTF medium. Embryos obtained from natural or in vitro fertilization were cultured in experimental media, ESCCM and ESCGM, or KSOM as the control culture medium. Embryos that developed to the blastocyst stage were transferred to the uteri of pseudopregnant mice and effects of the experimental media on embryo viability were determined. ESCCM and ESCGM could not pass the embryo after the 2-cell stage, but they were suitable for the development of the embryo from the 8-cell stage to the blastocyst. It can be concluded that the embryo has various requirements at different stages of development.
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14
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Eilenberger C, Rothbauer M, Brandauer K, Spitz S, Ehmoser EK, Küpcü S, Ertl P. Screening for Best Neuronal-Glial Differentiation Protocols of Neuralizing Agents Using a Multi-Sized Microfluidic Embryoid Body Array. Pharmaceutics 2022; 14:pharmaceutics14020339. [PMID: 35214071 PMCID: PMC8878393 DOI: 10.3390/pharmaceutics14020339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 02/01/2023] Open
Abstract
Stem cell technology and embryonic stem cell models are of great interest in biomedical research since they provide deeper insights into, e.g., neurogenesis and early mammalian brain development. Despite their great scientific potential, the reliable establishment of three-dimensional embryoid bodies (EBs) remains a major challenge, and the current lack of standardization and comparability is still limiting a broader application and translation of stem cell technology. Among others, a vital aspect for the reliable formation of EBs is optimizing differentiation protocols since organized differentiation is influenced by soluble inducers and EB size. A microfluidic biochip array was employed to automate cell loading and optimize directed neuronal and astrocytic differentiation protocols using murine P19 embryoid bodies to facilitate reliable embryonic stem cell differentiation. Our gravity-driven microfluidic size-controlled embryoid body-on-a-chip system allows (a) the robust operation and cultivation of up to 90 EBs in parallel and (b) the reproducible generation of five increasing sizes ranging from 300 µm to 1000 µm diameters. A comparative study adds two differentiation-inducers such as retinoic acid and EC23 to size-controlled embryoid bodies to identify the optimal differentiation protocol. Our study revealed a 1.4 to 1.9-fold higher neuron and astrocyte expression in larger embryoid bodies (above 750 µm) over smaller-sized EBs (below 450 µm), thus highlighting the importance of EB size in the establishment of robust neurodevelopmental in vitro models.
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Affiliation(s)
- Christoph Eilenberger
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria; (K.B.); (S.S.); (P.E.)
- Correspondence: (C.E.); (M.R.)
| | - Mario Rothbauer
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria; (K.B.); (S.S.); (P.E.)
- Orthopedic Microsystems, Karl Chiari Lab for Orthopaedic Biology, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
- Correspondence: (C.E.); (M.R.)
| | - Konstanze Brandauer
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria; (K.B.); (S.S.); (P.E.)
| | - Sarah Spitz
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria; (K.B.); (S.S.); (P.E.)
| | - Eva-Kathrin Ehmoser
- Department of Nanobiotechnology, Institute of Synthetic Bioarchitectures, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria; (E.-K.E.); (S.K.)
| | - Seta Küpcü
- Department of Nanobiotechnology, Institute of Synthetic Bioarchitectures, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria; (E.-K.E.); (S.K.)
| | - Peter Ertl
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria; (K.B.); (S.S.); (P.E.)
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15
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Isaja L, Ferriol-Laffouillere SL, Mucci S, Rodríguez-Varela MS, Romorini L. Embryoid Bodies-Based Multilineage Differentiation of Human Embryonic Stem Cells Grown on Feeder-Free Conditions. Methods Mol Biol 2022; 2520:189-198. [PMID: 34611823 DOI: 10.1007/7651_2021_440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Human embryonic stem cells (hESCs) can differentiate into any cell lineage (pluripotency potential) derived from the three germ layers: ectoderm, mesoderm, and endoderm. Pluripotency is usually demonstrated in vitro by spontaneous differentiation of hESCs grown on a monolayer of feeder-cells using an embryoid bodies (EBs)-based method. However, currently hESCs are grown mostly using fully defined media in the absence of a feeder layer. Here we describe a EBs-based protocol that allows multilineage differentiation of hESCs and human induced pluripotent stem cells (hiPSCs) grown on feeder-free conditions.
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Affiliation(s)
- Luciana Isaja
- Laboratorios de Investigación Aplicada en Neurociencias (LIAN-CONICET), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (Fleni), Belén de Escobar, Provincia de Buenos Aires, Argentina
| | - Sofía Luján Ferriol-Laffouillere
- Laboratorios de Investigación Aplicada en Neurociencias (LIAN-CONICET), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (Fleni), Belén de Escobar, Provincia de Buenos Aires, Argentina
| | - Sofía Mucci
- Laboratorios de Investigación Aplicada en Neurociencias (LIAN-CONICET), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (Fleni), Belén de Escobar, Provincia de Buenos Aires, Argentina
| | - María Soledad Rodríguez-Varela
- Laboratorios de Investigación Aplicada en Neurociencias (LIAN-CONICET), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (Fleni), Belén de Escobar, Provincia de Buenos Aires, Argentina
| | - Leonardo Romorini
- Laboratorios de Investigación Aplicada en Neurociencias (LIAN-CONICET), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (Fleni), Belén de Escobar, Provincia de Buenos Aires, Argentina.
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16
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Silva MC, Nandi G, Haggarty SJ. Differentiation of Human Induced Pluripotent Stem Cells into Cortical Neurons to Advance Precision Medicine. Methods Mol Biol 2022; 2429:143-174. [PMID: 35507160 DOI: 10.1007/978-1-0716-1979-7_10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A major obstacle in studying human central nervous system (CNS) diseases is inaccessibility to the affected tissue and cells. Even in limited cases where tissue is available through surgical interventions, differentiated neurons cannot be maintained for extended time frames, which is prohibitive for experimental repetition and scalability. Advances in methodologies for reprogramming human somatic cells into induced pluripotent stem cells (iPSC) and directed differentiation of human neurons in culture now allow access to physiological and disease relevant cell types. In particular, patient iPSC-derived neurons represent unique ex vivo neuronal networks that allow investigating disease genetic and molecular pathways in physiologically accurate cellular microenvironments, importantly recapitulating molecular and cellular phenotypic aspects of disease. Generation of functional neural cells from iPSCs relies on manipulation of culture formats in the presence of specific factors that promote the conversion of pluripotent stem cells into neurons. To this end, several experimental protocols have been developed. Direct differentiation of stem cells into post-mitotic neurons is usually associated with low throughput, low yield, and high technical variability. Instead, methods relying on expansion of the intermediate neural progenitor cells (NPCs) show incredible potential for posterior generation of suitable neuronal cultures for cellular and biochemical assays, as well as drug screening. NPCs are expandable, self-renewable multipotent cells that can differentiate into astrocytes, oligodendrocytes, and electrically active neurons. Here, we describe a protocol for generating iPSC-derived NPCs via formation of neural aggregates and selection of NPC precursor neural rosettes, followed by a simple and reproducible method for generating a mixed population of cortical-like neurons through growth factor withdrawal. Implementation of this protocol has the potential to advance the goals of precision medicine research for both neurological and psychiatric disorders.
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Affiliation(s)
- M Catarina Silva
- Chemical Neurobiology Laboratory, Center for Genomic Medicine, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
| | - Ghata Nandi
- Chemical Neurobiology Laboratory, Center for Genomic Medicine, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Stephen J Haggarty
- Chemical Neurobiology Laboratory, Center for Genomic Medicine, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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17
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Gwon K, Hong HJ, Gonzalez-Suarez AM, Slama MQ, Choi D, Hong J, Baskaran H, Stybayeva G, Peterson QP, Revzin A. Bioactive hydrogel microcapsules for guiding stem cell fate decisions by release and reloading of growth factors. Bioact Mater 2021; 15:1-14. [PMID: 35386345 PMCID: PMC8941170 DOI: 10.1016/j.bioactmat.2021.12.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 11/22/2021] [Accepted: 12/12/2021] [Indexed: 12/21/2022] Open
Abstract
Human pluripotent stem cells (hPSC) hold considerable promise as a source of adult cells for treatment of diseases ranging from diabetes to liver failure. Some of the challenges that limit the clinical/translational impact of hPSCs are high cost and difficulty in scaling-up of existing differentiation protocols. In this paper, we sought to address these challenges through the development of bioactive microcapsules. A co-axial flow focusing microfluidic device was used to encapsulate hPSCs in microcapsules comprised of an aqueous core and a hydrogel shell. Importantly, the shell contained heparin moieties for growth factor (GF) binding and release. The aqueous core enabled rapid aggregation of hPSCs into 3D spheroids while the bioactive hydrogel shell was used to load inductive cues driving pluripotency maintenance and endodermal differentiation. Specifically, we demonstrated that one-time, 1 h long loading of pluripotency signals, fibroblast growth factor (FGF)-2 and transforming growth factor (TGF)-β1, into bioactive microcapsules was sufficient to induce and maintain pluripotency of hPSCs over the course of 5 days at levels similar to or better than a standard protocol with soluble GFs. Furthermore, stem cell-carrying microcapsules that previously contained pluripotency signals could be reloaded with an endodermal cue, Nodal, resulting in higher levels of endodermal markers compared to stem cells differentiated in a standard protocol. Overall, bioactive heparin-containing core-shell microcapsules decreased GF usage five-fold while improving stem cell phenotype and are well suited for 3D cultivation of hPSCs. Heparin-containing microcapsules enable sustained release of inductive cues (growth factors) over the course of seven to nine days. Heparin-growth factor binding is reversible which means that different growth factors may be loaded in a sequential manner. Loading inductive cues into microcapsules results in better differentiation of pluripotent stem cells. Loading inductive cues into microcapsules allows to decrease the usage of growth factors by several fold.
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Affiliation(s)
- Kihak Gwon
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55902, USA
| | - Hye Jin Hong
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55902, USA
| | | | - Michael Q. Slama
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55902, USA
| | - Daheui Choi
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55902, USA
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jinkee Hong
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Harihara Baskaran
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Gulnaz Stybayeva
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55902, USA
| | - Quinn P. Peterson
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55902, USA
| | - Alexander Revzin
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55902, USA
- Corresponding author.
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18
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Yamaza H. Bilirubin induces discoloration and hypodontia on tooth. PEDIATRIC DENTAL JOURNAL 2021. [DOI: 10.1016/j.pdj.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Mousavi N. Characterization of in vitro 3D cultures. APMIS 2021; 129 Suppl 142:1-30. [PMID: 34399444 DOI: 10.1111/apm.13168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Over the past decade, 3D culture models of human and animal cells have found their way into tissue differentiation, drug development, personalized medicine and tumour behaviour studies. Embryoid bodies (EBs) are in vitro 3D cultures established from murine pluripotential stem cells, whereas tumoroids are patient-derived in vitro 3D cultures. This thesis aims to describe a new implication of an embryoid body model and to characterize the patient-specific microenvironment of the parental tumour in relation to tumoroid growth rate. In this thesis, we described a high-throughput monitoring method, where EBs are used as a dynamic angiogenesis model. In this model, digital image analysis (DIA) is implemented on immunohistochemistry (IHC) stained sections of the cultures over time. Furthermore, we have investigated the correlation between the genetic profile and inflammatory microenvironment of parental tumours on the in vitro growth rate of tumoroids. The EBs were cultured in spinner flasks. The samples were collected at days 4, 6, 9, 14, 18 and 21, dehydrated and embedded in paraffin. The histological sections were IHC stained for the endothelial marker CD31 and digitally scanned. The virtual whole-image slides were digitally analysed by Visiopharm® software. Histological evaluation showed vascular-like structures over time. The quantitative DIA was plausible to monitor significant increase in the total area of the EBs and an increase in endothelial differentiation. The tumoroids were established from 32 colorectal adenocarcinomas. The in vitro growth rate of the tumoroids was followed by automated microscopy over an 11-day period. The parental tumours were analysed by next-generation sequencing for KRAS, TP53, PIK3CA, SMAD4, MAP2K1, BRAF, FGFR3 and FBXW7 status. The tumoroids established from KRAS-mutated parental tumours showed a significantly higher growth rate compared to their wild-type counterparts. The density of CD3+ T lymphocytes and CD68+ macrophages was calculated in the centre of the tumours and at the invasive margin of the tumours. The high density of CD3+ cells and the low density of CD68+ cells showed a significant correlation with a higher growth rate of the tumoroids. In conclusion, a novel approach for histological monitoring of endothelial differentiation is presented in the stem cell-derived EBs. Furthermore, the KRAS status and density of CD3+ T cells and macrophages in the parental tumour influence the growth rate of the tumoroids. Our results indicate that these parameters should be included when tumoroids are to be implemented in personalized medicine.
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Affiliation(s)
- Nabi Mousavi
- Department of Pathology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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20
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Is It Possible to Treat Infertility with Stem Cells? Reprod Sci 2021; 28:1733-1745. [PMID: 33834375 DOI: 10.1007/s43032-021-00566-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 03/31/2021] [Indexed: 02/06/2023]
Abstract
Infertility is a major health problem, and despite improved treatments over the years, there are still some conditions that cannot be treated successfully using a conventional approach. Therefore, new options are being considered and one of them is cell therapy using stem cells. Stem cell treatments for infertility can be divided into two major groups, the first one being direct transplantation of stem cells or their paracrine factors into reproductive organs and the second one being in vitro differentiation into germ cells or gametes. In animal models, all of these approaches were able to improve the reproductive potential of tested animals, although in humans there is still too little evidence to suggest successful use. The reasons for lack of evidence are unavailability of proper material, the complexity of explored biological processes, and ethical considerations. Despite all of the above-mentioned hurdles, researchers were able to show that in women, it seems to be possible to improve some conditions, but in men, no similar clinically important improvement was achieved. To conclude, the data presented in this review suggest that the treatment of infertility with stem cells seems plausible, because some types of treatments have already been tested in humans, achieving live births, while others show great potential only in animal studies, for now.
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21
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Li A, Pereira C, Hill EE, Vukcevich O, Wang A. In vitro, In vivo and Ex vivo Models for Peripheral Nerve Injury and Regeneration. Curr Neuropharmacol 2021; 20:344-361. [PMID: 33827409 PMCID: PMC9413794 DOI: 10.2174/1570159x19666210407155543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 01/29/2021] [Accepted: 03/29/2021] [Indexed: 11/22/2022] Open
Abstract
Peripheral Nerve Injuries (PNI) frequently occur secondary to traumatic injuries. Recovery from these injuries can be expectedly poor, especially in proximal injuries. In order to study and improve peripheral nerve regeneration, scientists rely on peripheral nerve models to identify and test therapeutic interventions. In this review, we discuss the best described and most commonly used peripheral nerve models that scientists have and continue to use to study peripheral nerve physiology and function.
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Affiliation(s)
- Andrew Li
- University of California Davis Ringgold standard institution - Hand and Upper Extremity Surgery, Division of Plastic Surgery, Department of Surgery Sacramento, California. United States
| | - Clifford Pereira
- University of California Davis Ringgold standard institution - Hand and Upper Extremity Surgery, Division of Plastic Surgery, Department of Surgery Sacramento, California. United States
| | - Elise Eleanor Hill
- University of California Davis Ringgold standard institution - Department of Surgery Sacramento, California. United States
| | - Olivia Vukcevich
- University of California Davis Ringgold standard institution - Surgery & Biomedical Engineering Sacramento, California. United States
| | - Aijun Wang
- University of California Davis - Surgery & Biomedical Engineering 4625 2nd Ave., Suite 3005 Sacramento Sacramento California 95817. United States
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22
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E LL, Zhang R, Li CJ, Zhang S, Ma XC, Xiao R, Liu HC. Effects of rhBMP-2 on Bone Formation Capacity of Rat Dental Stem/Progenitor Cells from Dental Follicle and Alveolar Bone Marrow. Stem Cells Dev 2021; 30:441-457. [PMID: 33798004 DOI: 10.1089/scd.2020.0170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dental stem/progenitor cells are a promising cell sources for alveolar bone (AB) regeneration because of their same embryonic origin and superior osteogenic potential. However, their molecular processes during osteogenic differentiation remain unclear. The objective of this study was to identify the responsiveness of dental follicle cells (DFCs) and AB marrow-derived mesenchymal stem cells (ABM-MSCs) to recombinant human bone morphogenetic protein-2 (rhBMP-2). These cells expressed vimentin and MSC markers and did not express cytokeratin and hematopoietic stem cell markers and showed multilineage differentiation potential under specific culture conditions. DFCs exhibited higher proliferation and colony-forming unit-fibroblast efficiency than ABM-MSCs; rhBMP-2 induced DFCs to differentiate toward a cementoblast/osteoblast phenotype and ABM-MSCs to differentiate only toward a osteoblast phenotype; and rhBMP-2-induced DFCs exhibited higher osteogenic differentiation potential than ABM-MSCs. These cells adhered, grew, and produced extracellular matrix on nanohydroxyapatite/collagen/poly(l-lactide) (nHAC/PLA). During a 14-day culture on nHAC/PLA, the extracellular alkaline phosphatase (ALP) activity of DFCs decreased gradually and that of ABM-MSCs increased gradually; rhBMP-2 enhanced their extracellular ALP activity, intracellular osteocalcin (OCN), and osteopontin (OPN) protein expression; and DFCs exhibited higher extracellular ALP activity and intracellular OCN protein expression than ABM-MSCs. When implanted subcutaneously in severe combined immunodeficient mice for 3 months, DFCs+nHAC/PLA+rhBMP-2 obtained higher percentage of bone formation area, OCN, and cementum attachment protein expression and lower OPN expression than ABM-MSCs+nHAC/PLA+rhBMP-2. These results showed that DFCs possessed superior proliferation and osteogenic differentiation potential in vitro, and formed higher quantity and quality bones in vivo. It suggested that DFCs might exhibit a more sensitive responsiveness to rhBMP-2, so that DFCs enter a relatively mature stage of osteogenic differentiation earlier than ABM-MSCs after rhBMP-2 induction. The findings imply that these dental stem/progenitor cells are alternative sources for AB engineering in regenerative medicine, and developing dental tissue may provide better source for stem/progenitor cells.
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Affiliation(s)
- Ling-Ling E
- Institute of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Rong Zhang
- Institute of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Chuan-Jie Li
- Institute of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Shuo Zhang
- Institute of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiao-Cao Ma
- Institute of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Rui Xiao
- Institute of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hong-Chen Liu
- Institute of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
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23
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Dai W, Leng X, Wang J, Shi Z, Cheng J, Hu X, Ao Y. Intra-Articular Mesenchymal Stromal Cell Injections Are No Different From Placebo in the Treatment of Knee Osteoarthritis: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Arthroscopy 2021; 37:340-358. [PMID: 33098949 DOI: 10.1016/j.arthro.2020.10.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/08/2020] [Accepted: 10/08/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate the efficacy and safety of intra-articular mesenchymal stromal cells (MSCs) injections for knee osteoarthritis (OA) treatment. METHODS We performed a systematic literature search in PubMed, Embase, Scopus, and the Cochrane Library through April 2020 to identify level I randomized controlled trials (RCTs) that evaluated the clinical efficacy of MSCs versus control treatments for knee OA. Outcomes were analyzed on an intention-to-treat basis with random-effects models. RESULTS A total of 13 RCTs were included in the meta-analysis. Compared with placebo, there was no significant difference in VAS for pain (mean difference [MD] 1.62, 95% confidence interval [CI -0.60 to 3.85), WOMAC pain score (MD 1.88, 95% CI -0.21 to 3.98), WOMAC function score (MD -0.67, 95% CI -6.54 to 5.19), or WOMAC stiffness score (MD 0.64, 95% CI -0.86 to 2.14) for MSCs. Moreover, the smallest treatment effect of VAS for pain, WOMAC pain score, WOMAC function score, and WOMAC stiffness score did not exceed the minimum clinically important difference (MCID). Additionally, there was no significant difference in percentage of patients crossing the MCID threshold between MSC and placebo groups for VAS for pain (relative risk [RR] 0.93, 95% CI 0.55 to 1.57) or WOMAC total score (RR 0.40, 95% CI 0.13 to 1.21). Compared with hyaluronic acid (HA), MSC injection was associated with significantly better improvement in VAS for pain (MD 2.00, 95% CI 0.94 to 3.07), WOMAC pain score (MD 4.58, 95% CI 0.49 to 8.67), WOMAC total score (MD 14.86, 95% CI 10.59 to 19.13), and WOMAC stiffness score (MD 1.85, 95% CI 0.02 to 3.69). However, the smallest treatment effect of VAS for pain, WOMAC pain score, WOMAC function score, and WOMAC stiffness score did not exceed the MCID. Moreover, there was no significant difference in percentage of patients crossing the MCID threshold between MSC and HA groups for WOMAC total score (RR 0.57, 95% CI 0.21 to 1.55). We also found that MSCs did not increase adverse events compared with HA and placebo. CONCLUSIONS Intra-articular MSC injection was not found to be superior to placebo in pain relief and functional improvement for patients with symptomatic knee OA. However, additional direct testing and combination trials of different type of cells, doses, and number of injections of MSCs are required to further enhance clinical decision making for people with symptomatic knee OA. LEVEL OF EVIDENCE I, meta-analysis of level I studies.
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Affiliation(s)
- Wenli Dai
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, People's Republic of China
| | - Xi Leng
- Medical Imaging Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong, People's Republic of China
| | - Jian Wang
- Department of Orthopedic Surgery, Nanfang Hospital, Southern Medical University, Guangdong, People's Republic of China
| | - Zhanjun Shi
- Department of Orthopedic Surgery, Nanfang Hospital, Southern Medical University, Guangdong, People's Republic of China
| | - Jin Cheng
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, People's Republic of China
| | - Xiaoqing Hu
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, People's Republic of China.
| | - Yingfang Ao
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, People's Republic of China.
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24
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Investigating mineralization species in cultured bone from human mesenchymal stem cells using synchrotron-based XANES. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.109074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Bashir NZ. The role of insulin-like growth factors in modulating the activity of dental mesenchymal stem cells. Arch Oral Biol 2020; 122:104993. [PMID: 33259987 DOI: 10.1016/j.archoralbio.2020.104993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/14/2020] [Accepted: 11/19/2020] [Indexed: 12/27/2022]
Abstract
Regenerative treatment protocols are an exciting prospect in the management of oral pathology, as they allow for tissues to be restored to their original form and function, as compared to the reparative healing mechanisms which currently govern the outcomes of the majority of dental treatment. Stem cell therapy presents with a great deal of untapped potential in this pursuit of tissue regeneration, and, in particular, mesenchymal stem cells (MSCs) derived from dental tissues are of specific relevance with regards to their applications in engineering craniofacial tissues. A number of mediatory factors are involved in modulating the actions of dental MSCs, and, of these, insulin like growth factors (IGFs) are known to have potent effects in governing the behavior of these cells. The IGF family comprises a number of primary ligands, receptors, and binding proteins which are known to modulate the key properties of dental MSCs, such as their proliferation rates, differentiation potential, and mineralisation. The aims of this review are three-fold: (i) to present an overview of dental MSCs and the role of growth factors in modulating their characteristics, (ii) to discuss in greater detail the specific role of IGFs and the benefits they may convey for tissue engineering, and (iii) to provide a summary of potential for in vivo clinical translation of the current in vitro body of evidence.
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26
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Vibrational Spectroscopy for In Vitro Monitoring Stem Cell Differentiation. Molecules 2020; 25:molecules25235554. [PMID: 33256146 PMCID: PMC7729886 DOI: 10.3390/molecules25235554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 12/12/2022] Open
Abstract
Stem cell technology has attracted considerable attention over recent decades due to its enormous potential in regenerative medicine and disease therapeutics. Studying the underlying mechanisms of stem cell differentiation and tissue generation is critical, and robust methodologies and different technologies are required. Towards establishing improved understanding and optimised triggering and control of differentiation processes, analytical techniques such as flow cytometry, immunohistochemistry, reverse transcription polymerase chain reaction, RNA in situ hybridisation analysis, and fluorescence-activated cell sorting have contributed much. However, progress in the field remains limited because such techniques provide only limited information, as they are only able to address specific, selected aspects of the process, and/or cannot visualise the process at the subcellular level. Additionally, many current analytical techniques involve the disruption of the investigation process (tissue sectioning, immunostaining) and cannot monitor the cellular differentiation process in situ, in real-time. Vibrational spectroscopy, as a label-free, non-invasive and non-destructive analytical technique, appears to be a promising candidate to potentially overcome many of these limitations as it can provide detailed biochemical fingerprint information for analysis of cells, tissues, and body fluids. The technique has been widely used in disease diagnosis and increasingly in stem cell technology. In this work, the efforts regarding the use of vibrational spectroscopy to identify mechanisms of stem cell differentiation at a single cell and tissue level are summarised. Both infrared absorption and Raman spectroscopic investigations are explored, and the relative merits, and future perspectives of the techniques are discussed.
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27
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Visualization and quantification of dynamic intercellular coupling in human embryonic stem cells using single cell sonoporation. Sci Rep 2020; 10:18253. [PMID: 33106521 PMCID: PMC7589565 DOI: 10.1038/s41598-020-75347-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/08/2020] [Indexed: 12/28/2022] Open
Abstract
Gap junctions (GJs), which are proteinaceous channels, couple adjacent cells by permitting direct exchange of intracellular molecules with low molecular weights. GJ intercellular communication (GJIC) plays a critical role in regulating behaviors of human embryonic stem cells (hESCs), affecting their proliferation and differentiation. Here we report a novel use of sonoporation that enables single cell intracellular dye loading and dynamic visualization/quantification of GJIC in hESC colonies. By applying a short ultrasound pulse to excite single microbubbles tethered to cell membranes, a transient pore on the cell membrane (sonoporation) is generated which allows intracellular loading of dye molecules and influx of Ca2+ into single hESCs. We employ live imaging for continuous visualization of intercellular dye transfer and Ca2+ diffusion in hESC colonies. We quantify cell–cell permeability based on dye diffusion using mass transport models. Our results reveal heterogeneous intercellular connectivity and a variety of spatiotemporal characteristics of intercellular Ca2+ waves in hESC colonies induced by sonoporation of single cells.
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28
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Qiu C, Ge Z, Cui W, Yu L, Li J. Human Amniotic Epithelial Stem Cells: A Promising Seed Cell for Clinical Applications. Int J Mol Sci 2020; 21:ijms21207730. [PMID: 33086620 PMCID: PMC7594030 DOI: 10.3390/ijms21207730] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 02/06/2023] Open
Abstract
Perinatal stem cells have been regarded as an attractive and available cell source for medical research and clinical trials in recent years. Multiple stem cell types have been identified in the human placenta. Recent advances in knowledge on placental stem cells have revealed that human amniotic epithelial stem cells (hAESCs) have obvious advantages and can be used as a novel potential cell source for cellular therapy and clinical application. hAESCs are known to possess stem-cell-like plasticity, immune-privilege, and paracrine properties. In addition, non-tumorigenicity and a lack of ethical concerns are two major advantages compared with embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs). All of the characteristics mentioned above and other additional advantages, including easy accessibility and a non-invasive application procedure, make hAESCs a potential ideal cell type for use in both research and regenerative medicine in the near future. This review article summarizes current knowledge on the characteristics, therapeutic potential, clinical advances and future challenges of hAESCs in detail.
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Affiliation(s)
- Chen Qiu
- MOE Laboratory of Biosystems Homeostasis & Protection and College of Life Sciences-iCell Biotechnology Regenerative Biomedicine Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (C.Q.); (W.C.)
| | - Zhen Ge
- Institute of Materia Medica, Hangzhou Medical College, Hangzhou 310013, China;
| | - Wenyu Cui
- MOE Laboratory of Biosystems Homeostasis & Protection and College of Life Sciences-iCell Biotechnology Regenerative Biomedicine Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (C.Q.); (W.C.)
| | - Luyang Yu
- MOE Laboratory of Biosystems Homeostasis & Protection and College of Life Sciences-iCell Biotechnology Regenerative Biomedicine Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (C.Q.); (W.C.)
- Correspondence: (L.Y.); (J.L.)
| | - Jinying Li
- MOE Laboratory of Biosystems Homeostasis & Protection and College of Life Sciences-iCell Biotechnology Regenerative Biomedicine Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (C.Q.); (W.C.)
- Correspondence: (L.Y.); (J.L.)
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29
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Najafzadeh B, Asadzadeh Z, Motafakker Azad R, Mokhtarzadeh A, Baghbanzadeh A, Alemohammad H, Abdoli Shadbad M, Vasefifar P, Najafi S, Baradaran B. The oncogenic potential of NANOG: An important cancer induction mediator. J Cell Physiol 2020; 236:2443-2458. [PMID: 32960465 DOI: 10.1002/jcp.30063] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/02/2020] [Accepted: 09/07/2020] [Indexed: 12/11/2022]
Abstract
Cancer stem cells (CSCs) are a unique population in the tumor, but they only comprise 2%-5% of the tumor bulk. Although CSCs share several features with embryonic stem cells, CSCs can give rise to the tumor cells. CSCs overexpress embryonic transcription factor NANOG, which is downregulated in differentiated tissues. This transcription factor confers CSC's stemness, unlimited self-renewal, metastasis, invasiveness, angiogenesis, and drug-resistance with the assistance of WNT, OCT4, SOX2, Hedgehog, BMI-1, and other complexes. NANOG facilitates CSCs development via multiple pathways, like angiogenesis and lessening E-cadherin expression levels, which paves the road for metastasis. Moreover, NANOG represses apoptosis and leads to drug-resistance. This review aims to highlight the pivotal role of NANOG and the pertained pathways in CSCs. Also, this current study intends to demonstrate that targeting NANOG can dimmish the CSCs, sensitize the tumor to chemotherapy, and eradicate the cancer cells.
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Affiliation(s)
- Basira Najafzadeh
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Zahra Asadzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Baghbanzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajar Alemohammad
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Parisa Vasefifar
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Souzan Najafi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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30
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Application of digital image analysis on histological images of a murine embryoid body model for monitoring endothelial differentiation. Pathol Res Pract 2020; 216:153225. [PMID: 32987302 DOI: 10.1016/j.prp.2020.153225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 08/29/2020] [Accepted: 09/14/2020] [Indexed: 11/22/2022]
Abstract
The in vitro 3D model established from murine pluripotential stem cells (i.e., embryoid bodies (EBs)) is a dynamic model for endothelial differentiation. The aim of the present study was to investigate whether digital image analysis (DIA) can be applied on histological sections of EBs in order to quantify endothelial differentiation over time. The EBs were established in suspension cultures for 21 days in three independent replicate experiments. At day 4, 6, 9, 14, 18, and 21, the EBs were fixed in formaldehyde, embedded in paraffin and immunohistochemically (IHC) stained for CD31. The IHC-stained slides were digitally scanned and analysed using the Visiopharm® Quantitative Digital Pathology software Oncotopix™. The EBs developed CD31+ vascular-like structures during their differentiation. The quantitative DIA of the EBs showed that the log10 values of the relative CD31+ areas increased from -0.574 ± 0.470 (mean ± SD) at day 4 to 0.093 ± 0.688 (mean ± SD) at day 21 (p < 0.001). The approach presented in this study is a fast, quantitative and reproducible alternative method for an otherwise time-consuming and observer-dependent histological investigation. The future perspectives for such a system would be implementation of a modified version of the method on different 3D cultures and IHC markers.
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31
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Zhorzholadze NV, Sheremet NL, Tanas AS, Strelnikov VV. [New possibilities in the treatment of Stargardt disease]. Vestn Oftalmol 2020; 136:333-343. [PMID: 32880159 DOI: 10.17116/oftalma2020136042333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Stargardt disease is a hereditary retinal dystrophy associated with mutations in the ABCA4 gene. Currently, no etiopathogenetic drugs nor treatment methods for Stargardt disease have completely passed clinical trials. The review summarizes experimental and clinical studies of drugs aimed at reducing the accumulation of vitamin A dimers, lipofuscin, complement inhibition and RPE regeneration by stem cell transplantation, as well as gene therapy studies with intravitreal vector injection of the ABCA4 functional gene.
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Affiliation(s)
| | - N L Sheremet
- Research Institute of Eye Diseases, Moscow, Russia
| | - A S Tanas
- Research Centre for Medical Genetics, Moscow, Russia
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32
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Silva MC, Haggarty SJ. Human pluripotent stem cell-derived models and drug screening in CNS precision medicine. Ann N Y Acad Sci 2020; 1471:18-56. [PMID: 30875083 PMCID: PMC8193821 DOI: 10.1111/nyas.14012] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 01/02/2019] [Accepted: 01/07/2019] [Indexed: 12/12/2022]
Abstract
Development of effective therapeutics for neurological disorders has historically been challenging partly because of lack of accurate model systems in which to investigate disease etiology and test new therapeutics at the preclinical stage. Human stem cells, particularly patient-derived induced pluripotent stem cells (iPSCs) upon differentiation, have the ability to recapitulate aspects of disease pathophysiology and are increasingly recognized as robust scalable systems for drug discovery. We review advances in deriving cellular models of human central nervous system (CNS) disorders using iPSCs along with strategies for investigating disease-relevant phenotypes, translatable biomarkers, and therapeutic targets. Given their potential to identify novel therapeutic targets and leads, we focus on phenotype-based, small-molecule screens employing human stem cell-derived models. Integrated efforts to assemble patient iPSC-derived cell models with deeply annotated clinicopathological data, along with molecular and drug-response signatures, may aid in the stratification of patients, diagnostics, and clinical trial success, shifting translational science and precision medicine approaches. A number of remaining challenges, including the optimization of cost-effective, large-scale culture of iPSC-derived cell types, incorporation of aging into neuronal models, as well as robustness and automation of phenotypic assays to support quantitative drug efficacy, toxicity, and metabolism testing workflows, are covered. Continued advancement of the field is expected to help fully humanize the process of CNS drug discovery.
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Affiliation(s)
- M. Catarina Silva
- Chemical Neurobiology Laboratory, Departments of Neurology and Psychiatry, Massachusetts General Hospital, Center for Genomic Medicine, Harvard Medical School, Boston MA, USA
| | - Stephen J. Haggarty
- Chemical Neurobiology Laboratory, Departments of Neurology and Psychiatry, Massachusetts General Hospital, Center for Genomic Medicine, Harvard Medical School, Boston MA, USA
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33
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Wartalski K, Gorczyca G, Wiater J, Tabarowski Z, Palus-Chramiec K, Setkowicz Z, Duda M. Efficient generation of neural-like cells from porcine ovarian putative stem cells - morphological characterization and evaluation of their electrophysiological properties. Theriogenology 2020; 155:256-268. [PMID: 32810809 DOI: 10.1016/j.theriogenology.2020.05.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/20/2020] [Accepted: 05/23/2020] [Indexed: 12/20/2022]
Abstract
Until recently, the mammalian ovary was considered to consist of fully differentiated tissues, but evidence for the presence of adult stem cells in this organ appeared. The differentiation potential of these cells, referred to as putative stem cells, is not well defined. Porcine ovarian putative stem cells (poPSCs) were immunomagnetically isolated from postnatal pig ovaries based on the presence of the SSEA-4 surface marker protein. First, they were cultured in the undifferentiated state. After the third passage, a novel 7-day culture method inducing their differentiation into neural-like cells by the addition of forskolin (FSK), retinoic acid (RA) and basic fibroblast growth factor (bFGF) to the culture medium was applied. After 7 days, poPSCs successfully differentiated into neural-like cells, as evidenced by neural morphology and the presence of the neuronal markers nestin, NeuN, and GFAP, as confirmed by immunofluorescence, western blot, and real-time PCR. Electrophysiological analysis of potassium and sodium channel activity (patch clamp) confirmed that they indeed differentiated into neurons. The plasticity of poPSCs offers an excellent opportunity, especially in the field of neuroscience, since they can differentiate into neurons or glial cells. Although poPSCs might not be pluripotent cells, they also escape the rigid classification framework of adult stem cells.
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Affiliation(s)
- Kamil Wartalski
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387, Krakow, Poland; Department of Histology, Jagiellonian University Medical College, Kopernika 7, 31-034, Krakow, Poland
| | - Gabriela Gorczyca
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387, Krakow, Poland
| | - Jerzy Wiater
- Department of Histology, Jagiellonian University Medical College, Kopernika 7, 31-034, Krakow, Poland; Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387, Krakow, Poland
| | - Zbigniew Tabarowski
- Department of Experimental Hematology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387, Krakow, Poland
| | - Katarzyna Palus-Chramiec
- Department of Neurophysiology and Chronobiology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387, Krakow, Poland
| | - Zuzanna Setkowicz
- Department of Neuroanatomy, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387, Krakow, Poland
| | - Małgorzata Duda
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387, Krakow, Poland.
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34
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Abstract
Human kidney tissue can now be generated via the directed differentiation of human pluripotent stem cells. This advance is anticipated to facilitate the modeling of human kidney diseases, provide platforms for nephrotoxicity screening, enable cellular therapy, and potentially generate tissue for renal replacement. All such applications will rely upon the accuracy and reliability of the model and the capacity for stem cell-derived kidney tissue to recapitulate both normal and diseased states. In this review, we discuss the models available, how well they recapitulate the human kidney, and how far we are from application of these cells for use in cellular therapies.
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Affiliation(s)
- Melissa H Little
- Murdoch Children's Research Institute, Parkville, Victoria 3052, Australia; .,Department of Paediatrics, University of Melbourne, Victoria 3010, Australia.,Department of Anatomy and Neuroscience, University of Melbourne, Victoria 3010, Australia
| | - Lorna J Hale
- Murdoch Children's Research Institute, Parkville, Victoria 3052, Australia;
| | - Sara E Howden
- Murdoch Children's Research Institute, Parkville, Victoria 3052, Australia; .,Department of Paediatrics, University of Melbourne, Victoria 3010, Australia
| | - Santhosh V Kumar
- Murdoch Children's Research Institute, Parkville, Victoria 3052, Australia; .,Department of Paediatrics, University of Melbourne, Victoria 3010, Australia
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35
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Nakatake Y, Ko SB, Sharov AA, Wakabayashi S, Murakami M, Sakota M, Chikazawa N, Ookura C, Sato S, Ito N, Ishikawa-Hirayama M, Mak SS, Jakt LM, Ueno T, Hiratsuka K, Matsushita M, Goparaju SK, Akiyama T, Ishiguro KI, Oda M, Gouda N, Umezawa A, Akutsu H, Nishimura K, Matoba R, Ohara O, Ko MS. Generation and Profiling of 2,135 Human ESC Lines for the Systematic Analyses of Cell States Perturbed by Inducing Single Transcription Factors. Cell Rep 2020; 31:107655. [DOI: 10.1016/j.celrep.2020.107655] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 03/07/2020] [Accepted: 04/23/2020] [Indexed: 01/23/2023] Open
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36
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Singh MS, Park SS, Albini TA, Canto-Soler MV, Klassen H, MacLaren RE, Takahashi M, Nagiel A, Schwartz SD, Bharti K. Retinal stem cell transplantation: Balancing safety and potential. Prog Retin Eye Res 2020; 75:100779. [PMID: 31494256 PMCID: PMC7056514 DOI: 10.1016/j.preteyeres.2019.100779] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 08/29/2019] [Accepted: 09/02/2019] [Indexed: 12/14/2022]
Abstract
Stem cell transplantation holds great promise as a potential treatment for currently incurable retinal degenerative diseases that cause poor vision and blindness. Recently, safety data have emerged from several Phase I/II clinical trials of retinal stem cell transplantation. These clinical trials, usually run in partnership with academic institutions, are based on sound preclinical studies and are focused on patient safety. However, reports of serious adverse events arising from cell therapy in other poorly regulated centers have now emerged in the lay and scientific press. While progress in stem cell research for blindness has been greeted with great enthusiasm by patients, scientists, doctors and industry alike, these adverse events have raised concerns about the safety of retinal stem cell transplantation and whether patients are truly protected from undue harm. The aim of this review is to summarize and appraise the safety of human retinal stem cell transplantation in the context of its potential to be developed into an effective treatment for retinal degenerative diseases.
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Affiliation(s)
- Mandeep S Singh
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA.
| | - Susanna S Park
- Department of Ophthalmology & Vision Science, University of California-Davis Eye Center, Sacramento, CA, 95817, USA
| | - Thomas A Albini
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - M Valeria Canto-Soler
- CellSight Ocular Stem Cell and Regeneration Research Program, Department of Ophthalmology, Sue Anschutz-Rodgers Eye Center, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Henry Klassen
- Gavin Herbert Eye Institute and Stem Cell Research Center, Irvine, CA, 92697, USA
| | - Robert E MacLaren
- Nuffield Laboratory of Ophthalmology, Department of Clinical Neurosciences, University of Oxford and Oxford University Eye Hospital, NHS Foundation Trust, NIHR Biomedical Research Centre, Oxford, OX3 9DU, UK
| | - Masayo Takahashi
- Laboratory for Retinal Regeneration, Center for Biosystems Dynamics Research, RIKEN, Kobe, Hyogo, 650-0047, Japan
| | - Aaron Nagiel
- The Vision Center, Department of Surgery, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA; USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90007, USA
| | - Steven D Schwartz
- Stein Eye Institute, University of California Los Angeles Geffen School of Medicine, Los Angeles, CA, 90095, USA; Edythe and Eli Broad Stem Cell Institute, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Kapil Bharti
- National Eye Institute, National Institutes of Health, Bethesda, MD, 90892, USA
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37
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Sun DZ, Abelson B, Babbar P, Damaser MS. Harnessing the mesenchymal stem cell secretome for regenerative urology. Nat Rev Urol 2020; 16:363-375. [PMID: 30923338 DOI: 10.1038/s41585-019-0169-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The extensive arsenal of bioactive molecules secreted by mesenchymal stem cells (MSCs), known as the secretome, has demonstrated considerable therapeutic benefit in regenerative medicine. Investigation into the therapeutic potential of the secretome has enabled researchers to replicate the anti-inflammatory, pro-angiogenic and trophic effects of stem cells without the need for the cells themselves. Furthermore, treatment with the MSC secretome could circumvent hurdles associated with cellular therapy, including oncogenic transformation, immunoreactivity and cost. Thus, a clear rationale exists for investigating the therapeutic potential of the MSC secretome in regenerative urology. Indeed, preclinical studies have demonstrated the therapeutic benefits of the MSC secretome in models of stress urinary incontinence, renal disease, bladder dysfunction and erectile dysfunction. However, the specific mechanisms underpinning therapeutic activity are unclear and require further research before clinical translation. Improvements in current proteomic methods used to characterize the secretome will be necessary to provide further insight into stem cells and their secretome in regenerative urology.
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Affiliation(s)
- Daniel Z Sun
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA. .,Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, USA. .,Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Benjamin Abelson
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.,Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, USA.,Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Paurush Babbar
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.,Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, USA.,Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Margot S Damaser
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.,Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, USA.,Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Advanced Platform Technology Center, Louis Stokes Cleveland VA Medical Center, Cleveland, OH, USA
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38
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Trebinjac S, Gharairi M. Mesenchymal Stem Cells for Treatment of Tendon and Ligament Injuries-clinical Evidence. Med Arch 2020; 74:387-390. [PMID: 33424096 PMCID: PMC7780758 DOI: 10.5455/medarh.2020.74.387-390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Introduction Sport injuries, most of the time affect muscles, tendons, ligaments, cartilage and bones and range from very mild to severe, prompting different therapeutic approaches. Overuse is the most common cause of sports injuries and half of those injuries affect tendon, tendon sheet and tendon insertion to the bone. The number of ligament injuries, particularly anterior cruciate ligament (ACL) increasing. Aim We were searching PubMed, Google Scholar and Medline focusing on human clinical studies related to stem cell therapy for tendinopathies and ligament injuries. Considering small number of published articles, we accepted papers with all level of evidence without following strict PRISMA guidelines. Results The number of studies related to ligament injuries is very low compared to tendon injuries. In human clinical trials there have been only a few studies published so far. In double blind randomized control trial (RCT) Wang and coauthors combined allogenic precursor mesenchymal stem cells (MPC) with hyaluronic acid (HA) and compared with hyaluronic acid alone in 17 patients underwent ACL reconstruction. Intensity of pain and quality of life were assessed by Knee Injury and Osteoarthritis Outcome Score (KOOS) and SF-36v2 scores. A width of joint space, volume of cartilage and bone were recorded by magnetic resonance imaging (MRI). Moderate arthralgia and swelling were detected within 24 hours after the injection in 4 out of 11 patients in the group receiving MSC+HA. In the group receiving only HA, there were no adverse reactions. The signs of slowing down of regenerative process were presented on MRI by preserving joint space and reducing degradation of cartilage volume. Conclusion Clinical application of MSCs for treatment of tendon and ligament injuries might be good alternative option for athletes. Published clinical studies confirmed clinical improvement and integrity of impaired tissues. However, RTCs are needed to confirm real potential of cell therapy and their advantages comparing to other treatment options.
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Affiliation(s)
- Suad Trebinjac
- Czech Rehabilitation Hospital, FIFA Medical Center of Excellence, St - Deira. Dubai, UAE
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Abstract
Embryonic Stem cells are widely studied to elucidate the disease and developmental processes because of their capability to differentiate into cells of any lineage, Pervasive transcription is a distinct feature of all multicellular organisms and genomic elements such as enhancers and bidirectional or unidirectional promoters regulate these processes. Thousands of loci in each species produce a class of transcripts called noncoding RNAs (ncRNAs), that are well known for their influential regulatory roles in multiple biological processes including stem cell pluripotency and differentiation. The number of lncRNA species increases in more complex organisms highlighting the importance of RNA-based control in the evolution of multicellular organisms. Over the past decade, numerous studies have shed light on lncRNA biogenesis and functional significance in the cell and the organism. In this review, we focus primarily on lncRNAs affecting the stem cell state and developmental pathways.
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Affiliation(s)
- Meghali Aich
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, India; Academy of Scientific & Innovative Research, New Delhi, India
| | - Debojyoti Chakraborty
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, India; Academy of Scientific & Innovative Research, New Delhi, India.
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Serio RN, Gudas LJ. Modification of stem cell states by alcohol and acetaldehyde. Chem Biol Interact 2019; 316:108919. [PMID: 31846616 PMCID: PMC7036011 DOI: 10.1016/j.cbi.2019.108919] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 11/13/2019] [Accepted: 12/10/2019] [Indexed: 12/20/2022]
Abstract
Ethanol (EtOH) is a recreationally ingested compound that is both teratogenic and carcinogenic in humans. Because of its abundant consumption worldwide and the vital role of stem cells in the formation of birth defects and cancers, delineating the effects of EtOH on stem cell function is currently an active and urgent pursuit of scientific investigation to explicate some of the mechanisms contributing to EtOH toxicity. Stem cells represent a primordial, undifferentiated phase of development; thus encroachment on normal physiologic processes of differentiation into terminal lineages by EtOH can greatly alter the function of progenitors and terminally differentiated cells, leading to pathological consequences that manifest as fetal alcohol spectrum disorders and cancers. In this review we explore the disruptive role of EtOH in differentiation of stem cells. Our primary objective is to elucidate the mechanisms by which EtOH alters differentiation-related gene expression and lineage specifications, thus modifying stem cells to promote pathological outcomes. We additionally review the effects of a reactive metabolite of EtOH, acetaldehyde (AcH), in causing both differentiation defects in stem cells as well as genomic damage that incites cellular aging and carcinogenesis.
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Affiliation(s)
- Ryan N Serio
- Department of Pharmacology, Weill Cornell Graduate School of Medical Sciences of Cornell University, USA.
| | - Lorraine J Gudas
- Department of Pharmacology, Weill Cornell Graduate School of Medical Sciences of Cornell University, USA; Department of Pharmacology, Weill Cornell Medical College of Cornell University, USA.
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Guan S, Zhang K, Li J. Recent Advances in Extracellular Matrix for Engineering Stem Cell Responses. Curr Med Chem 2019; 26:6321-6338. [DOI: 10.2174/0929867326666190704121309] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/02/2018] [Accepted: 01/25/2019] [Indexed: 02/06/2023]
Abstract
Stem cell transplantation is an advanced medical technology, which brings hope for the
treatment of some difficult diseases in the clinic. Attributed to its self-renewal and differential
ability, stem cell research has been pushed to the forefront of regenerative medicine and has become
a hot topic in tissue engineering. The surrounding extracellular matrix has physical functions
and important biological significance in regulating the life activities of cells, which may play crucial
roles for in situ inducing specific differentiation of stem cells. In this review, we discuss the
stem cells and their engineering application, and highlight the control of the fate of stem cells, we
offer our perspectives on the various challenges and opportunities facing the use of the components
of extracellular matrix for stem cell attachment, growth, proliferation, migration and differentiation.
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Affiliation(s)
- Shuaimeng Guan
- School of Life Science, Zhengzhou University, Zhengzhou 450000, China
| | - Kun Zhang
- School of Life Science, Zhengzhou University, Zhengzhou 450000, China
| | - Jingan Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, China
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Freel BA, Sheets JN, Francis KR. iPSC modeling of rare pediatric disorders. J Neurosci Methods 2019; 332:108533. [PMID: 31811832 DOI: 10.1016/j.jneumeth.2019.108533] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 11/25/2019] [Accepted: 11/27/2019] [Indexed: 12/20/2022]
Abstract
Discerning the underlying pathological mechanisms and the identification of therapeutic strategies to treat individuals affected with rare neurological diseases has proven challenging due to a host of factors. For instance, rare diseases affecting the nervous system are inherently lacking in appropriate patient sample availability compared to more common diseases, while animal models often do not accurately recapitulate specific disease phenotypes. These challenges impede research that may otherwise illuminate aspects of disease initiation and progression, leading to the ultimate identification of potential therapeutics. The establishment of induced pluripotent stem cells (iPSCs) as a human cellular model with defined genetics has provided the unique opportunity to study rare diseases within a controlled environment. iPSC models enable researchers to define mutational effects on specific cell types and signaling pathways within increasingly complex systems. Among rare diseases, pediatric diseases affecting neurodevelopment and neurological function highlight the critical need for iPSC-based disease modeling due to the inherent difficulty associated with collecting human neural tissue and the complexity of the mammalian nervous system. Rare neurodevelopmental disorders are therefore ideal candidates for utilization of iPSC-based in vitro studies. In this review, we address both the state of the iPSC field in the context of their utility and limitations for neurodevelopmental studies, as well as speculating about the future applications and unmet uses for iPSCs in rare diseases.
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Affiliation(s)
- Bethany A Freel
- Cellular Therapies and Stem Cell Biology Group, Sanford Research, Sioux Falls, SD, USA
| | - Jordan N Sheets
- Cellular Therapies and Stem Cell Biology Group, Sanford Research, Sioux Falls, SD, USA
| | - Kevin R Francis
- Cellular Therapies and Stem Cell Biology Group, Sanford Research, Sioux Falls, SD, USA; Department of Pediatrics, University of South Dakota Sanford School of Medicine, Sioux Falls, SD, USA.
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Park JY, Han J, Jung HS, Lee G, Kim HJ, Cho GS, Park HJ, Han C, Kim JS, Kim JH. Synthetic probes for in vitro purification and in vivo tracking of hepatocytes derived from human pluripotent stem cells. Biomaterials 2019; 222:119431. [DOI: 10.1016/j.biomaterials.2019.119431] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/23/2019] [Accepted: 08/13/2019] [Indexed: 02/06/2023]
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Ben M’Barek K, Habeler W, Regent F, Monville C. Developing Cell-Based Therapies for RPE-Associated Degenerative Eye Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1186:55-97. [DOI: 10.1007/978-3-030-28471-8_3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Zhang W, Chen Z, Zhang D, Zhao B, Liu L, Xie Z, Yao Y, Zheng P. KHDC3L mutation causes recurrent pregnancy loss by inducing genomic instability of human early embryonic cells. PLoS Biol 2019; 17:e3000468. [PMID: 31609975 PMCID: PMC6812846 DOI: 10.1371/journal.pbio.3000468] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 10/24/2019] [Accepted: 09/26/2019] [Indexed: 12/28/2022] Open
Abstract
Recurrent pregnancy loss (RPL) is an important complication in reproductive health. About 50% of RPL cases are unexplained, and understanding the genetic basis is essential for its diagnosis and prognosis. Herein, we report causal KH domain containing 3 like (KHDC3L) mutations in RPL. KHDC3L is expressed in human epiblast cells and ensures their genome stability and viability. Mechanistically, KHDC3L binds to poly(ADP-ribose) polymerase 1 (PARP1) to stimulate its activity. In response to DNA damage, KHDC3L also localizes to DNA damage sites and facilitates homologous recombination (HR)-mediated DNA repair. KHDC3L dysfunction causes PARP1 inhibition and HR repair deficiency, which is synthetically lethal. Notably, we identified two critical residues, Thr145 and Thr156, whose phosphorylation by Ataxia-telangiectasia mutated (ATM) is essential for KHDC3L’s functions. Importantly, two deletions of KHDC3L (p.E150_V160del and p.E150_V172del) were detected in female RPL patients, both of which harbor a common loss of Thr156 and are impaired in PARP1 activation and HR repair. In summary, our study reveals both KHDC3L as a new RPL risk gene and its critical function in DNA damage repair pathways. Recurrent pregnancy loss is an important complication in reproductive health, and about 50% of cases remain unexplained. This study shows that KHDC3L safeguards the genomic stability of human early embryonic cells, and damaging mutations in its gene cause recurrent pregnancy loss in humans.
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Affiliation(s)
- Weidao Zhang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Yunnan Key Laboratory of Animal Reproduction, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - Zhongliang Chen
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Yunnan Key Laboratory of Animal Reproduction, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - Dengfeng Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - Bo Zhao
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Lu Liu
- Department of Obstetrics and Gynaecology, Yan An Hospital, Kunming Medical University, Kunming, China
| | - Zhengyuan Xie
- Yunnan Key Laboratory for Fertility Regulation and Birth Health of Minority Nationalities, Key Laboratory of Preconception Health in Western China, NHFPC, Population and Family Planning Institute of Yunnan Province, Kunming, China
| | - Yonggang Yao
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, China
- KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Ping Zheng
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Yunnan Key Laboratory of Animal Reproduction, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, China
- * E-mail:
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Raščanin S, Rančić N, Dragović S, Jovanović M. EMBRYONIC STEM CELLS: WHERE DO WE STAND AT THE MOMENT? ACTA MEDICA MEDIANAE 2019. [DOI: 10.5633/amm.2019.0320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Abstract
Pluripotent stem cells can help recreate a variety of different tissues. Stem cells are already in use in a variety of ways in the medical field but plastic surgeons have particular interest because of the constant need to produce additional tissue or mold existing tissue. More and more commercial products are being marketed with far-reaching goals and some with proven and promising results. In this article, the authors discuss the basic science behind stem cells and the theories on how they work. They then discuss some active uses of stem cells that should be understood by all plastic surgeons. The reader should then have an understanding and basis to evaluate new technologies and commercial products as they develop.
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Affiliation(s)
- Nikhil A Agrawal
- Division of Plastic Surgery, Baylor College of Medicine, Houston, Texas
| | - Dmitry Zavlin
- Institute for Reconstructive Surgery, Houston Methodist Hospital, Weill Cornell Medicine, Houston, Texas
| | - Matthew R Louis
- Department of Plastic and Reconstructive Surgery, Johns Hopkins University, School of Medicine, Baltimore, Maryland
| | - Edward M Reece
- Division of Plastic Surgery, Baylor College of Medicine, Houston, Texas
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Advances in Human Induced Pluripotent Stem Cell-Derived Hepatocytes for Use in Toxicity Testing. Ann Biomed Eng 2019; 48:1045-1057. [PMID: 31372857 DOI: 10.1007/s10439-019-02331-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 07/19/2019] [Indexed: 02/08/2023]
Abstract
Induced pluripotent stem cells (iPSCs) can be differentiated into multiple cell types in the body while maintaining proliferative capabilities. The generation of hepatocyte-like cells (HLCs) from iPSCs has resulted in a new source for liver cells. Since healthy primary human hepatocytes and hepatic cells are difficult to obtain, HLCs are gaining attention. HLCs can be obtained from a continuous, stable source while maintaining their original donor genotype, which opens new avenues into patient-specific testing and therapeutics. Studies have utilized HLCs for toxicity testing to further understand their drug metabolizing capabilities. This review focuses on advances being made to achieve hepatic functions from HLCs, their current use in hepatotoxicity testing, and their potential for future liver-related toxicity evaluations.
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Skolasinski SD, Panoskaltsis-Mortari A. Lung tissue bioengineering for chronic obstructive pulmonary disease: overcoming the need for lung transplantation from human donors. Expert Rev Respir Med 2019; 13:665-678. [PMID: 31164014 DOI: 10.1080/17476348.2019.1624163] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Introduction: Chronic obstructive pulmonary disease (COPD) affects more than 380 million people, causing more than 3 million deaths annually worldwide. Despite this enormous burden, currently available therapies are largely limited to symptom control. Lung transplant is considered for end-stage disease but is severely limited by the availability of human organs. Furthermore, the pre-transplant course is a complex orchestration of locating and harvesting suitable lungs, and the post-transplant course is complicated by rejection and infection. Lung tissue bioengineering has the potential to relieve the organ shortage and improve the post-transplant course by generating patient-specific lungs for transplant. Additionally, emerging progenitor cell therapies may facilitate in vivo regeneration of pulmonary tissue, obviating the need for transplant. Areas Covered: We review several lung tissue bioengineering approaches including the recellularization of decellularized scaffolds, 3D bioprinting, genetically-engineered xenotransplantation, blastocyst complementation, and direct therapy with progenitor cells. Articles were identified by searching relevant terms (see Key Words) in the PubMed database and selected for inclusion based on novelty and uniqueness of their approach. Expert Opinion: Lung tissue bioengineering research is in the early stages. Of the methods reviewed, only direct cell therapy has been investigated in humans. We anticipate a minimum of 5-10 years before human therapy will be feasible.
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Affiliation(s)
- Steven D Skolasinski
- a Division of Pulmonary, Allergy, Critical Care and Sleep Medicine , University of Minnesota , Minneapolis , MN , USA
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Abstract
INTRODUCTION Aberrant wound healing is a significant healthcare problem, posing a substantial burden on patients, their families, and the healthcare system. Existing treatment options remain only moderately effective and often fail to promote the closure of non-healing wounds in susceptible populations, such as aging and diabetic patients. Stem cell therapy has emerged as a promising treatment modality, with the potential to restore tissue to its pre-injured state. Of particular interest are mesenchymal stromal cells, which have been shown to accelerate wound healing by modulating the immune response and promoting angiogenesis. AREAS COVERED This review provides an overview of wound healing and current methods for the management of chronic wounds, as well as the current state and considerations for optimizing stem cell therapy. Considerations include stem cell types, tissue source, donor selection, cell heterogeneity, delivery methods, and genetic engineering. EXPERT OPINION A growing body of evidence has shown that delivery of stem cells, particularly mesenchymal stromal cells, has the potential to effectively improve the rate and quality of wound healing. However, significant additional basic and clinical research must be performed to optimize cell therapy, such as further elucidation of the therapeutic mechanisms of stem cells and standardization of clinical trial guidelines.
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Affiliation(s)
- Nina Kosaric
- a Hagey Laboratory for Pediatric Regenerative Medicine; Division of Plastic and Reconstructive Surgery, Department of Surgery , Stanford University School of Medicine , Stanford , CA , USA
| | - Harriet Kiwanuka
- a Hagey Laboratory for Pediatric Regenerative Medicine; Division of Plastic and Reconstructive Surgery, Department of Surgery , Stanford University School of Medicine , Stanford , CA , USA
| | - Geoffrey C Gurtner
- a Hagey Laboratory for Pediatric Regenerative Medicine; Division of Plastic and Reconstructive Surgery, Department of Surgery , Stanford University School of Medicine , Stanford , CA , USA
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