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Lu S, Kim HS, Cao Y, Bedi K, Zhao L, Narayanan IV, Magnuson B, Gu Y, Yang J, Yi Z, Babaniamansour S, Shameon S, Xu C, Paulsen MT, Qiu P, Jeyarajan S, Ljungman M, Thomas D, Dou Y, Crawford H, di Magliano MP, Ge K, Yang B, Shi J. KMT2D links TGF-β signaling to noncanonical activin pathway and regulates pancreatic cancer cell plasticity. Int J Cancer 2023. [PMID: 37140208 DOI: 10.1002/ijc.34528] [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: 04/21/2022] [Revised: 03/02/2023] [Accepted: 03/13/2023] [Indexed: 05/05/2023]
Abstract
Although KMT2D, also known as MLL2, is known to play an essential role in development, differentiation, and tumor suppression, its role in pancreatic cancer development is not well understood. Here, we discovered a novel signaling axis mediated by KMT2D, which links TGF-β to the activin A pathway. We found that TGF-β upregulates a microRNA, miR-147b, which in turn leads to post-transcriptional silencing of KMT2D. Loss of KMT2D induces the expression and secretion of activin A, which activates a noncanonical p38 MAPK-mediated pathway to modulate cancer cell plasticity, promote a mesenchymal phenotype, and enhance tumor invasion and metastasis in mice. We observed a decreased KMT2D expression in human primary and metastatic pancreatic cancer. Furthermore, inhibition or knockdown of activin A reversed the protumoral role of KMT2D loss. These findings support a tumor-suppressive role of KMT2D in pancreatic cancer and identify miR-147b and activin A as novel therapeutic targets.
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Affiliation(s)
- Shuang Lu
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
- Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Hong Sun Kim
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Yubo Cao
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Karan Bedi
- Department of Radiation Oncology, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Lili Zhao
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - Ishwarya Venkata Narayanan
- Department of Radiation Oncology, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Brian Magnuson
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - Yumei Gu
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Jing Yang
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Zhujun Yi
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Sepideh Babaniamansour
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Sargis Shameon
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Chang Xu
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Michelle T Paulsen
- Department of Radiation Oncology, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Ping Qiu
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Sivakumar Jeyarajan
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Mats Ljungman
- Department of Radiation Oncology, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Dafydd Thomas
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Yali Dou
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | | | | | - Kai Ge
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institute of Health, Bethesda, Maryland, USA
| | - Bo Yang
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Jiaqi Shi
- Department of Pathology & Clinical Labs, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, Michigan, USA
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2
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Lu V, Roy IJ, Torres A, Joly JH, Ahsan FM, Graham NA, Teitell MA. Glutamine-dependent signaling controls pluripotent stem cell fate. Dev Cell 2022; 57:610-623.e8. [PMID: 35216682 PMCID: PMC8930616 DOI: 10.1016/j.devcel.2022.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 11/01/2021] [Accepted: 01/31/2022] [Indexed: 12/30/2022]
Abstract
Human pluripotent stem cells (hPSCs) can self-renew indefinitely or can be induced to differentiate. We previously showed that exogenous glutamine (Gln) withdrawal biased hPSC differentiation toward ectoderm and away from mesoderm. We revealed that, although all three germ lineages are capable of de novo Gln synthesis, only ectoderm generates sufficient Gln to sustain cell viability and differentiation, and this finding clarifies lineage fate restrictions under Gln withdrawal. Furthermore, we found that Gln acts as a signaling molecule for ectoderm that supersedes lineage-specifying cytokine induction. In contrast, Gln in mesoderm and endoderm is the preferred precursor of α-ketoglutarate without a direct signaling role. Our work raises a question about whether the nutrient environment functions directly in cell differentiation during development. Interestingly, transcriptome analysis of a gastrulation-stage human embryo shows that unique Gln enzyme-encoding gene expression patterns may also distinguish germ lineages in vivo. Together, our study suggests that intracellular Gln may help coordinate differentiation of the three germ layers.
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Affiliation(s)
- Vivian Lu
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Irena J Roy
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Alejandro Torres
- Molecular Biology Institute, University of California at Los Angeles, Los Angeles, CA, USA
| | - James H Joly
- Mork Family Department of Chemical Engineering and Materials Science, Los Angeles, CA 90089, USA
| | - Fasih M Ahsan
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA, USA
| | - Nicholas A Graham
- Mork Family Department of Chemical Engineering and Materials Science, Los Angeles, CA 90089, USA; Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA; Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Michael A Teitell
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA; Molecular Biology Institute, University of California at Los Angeles, Los Angeles, CA, USA; Department of Bioengineering, Department of Pediatrics, California NanoSystems Institute, and Broad Center for Regenerative Medicine and Stem Cell Research, University of California at Los Angeles, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA.
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3
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Lu V, Roy IJ, Teitell MA. Nutrients in the fate of pluripotent stem cells. Cell Metab 2021; 33:2108-2121. [PMID: 34644538 PMCID: PMC8568661 DOI: 10.1016/j.cmet.2021.09.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/07/2021] [Accepted: 09/23/2021] [Indexed: 12/11/2022]
Abstract
Pluripotent stem cells model certain features of early mammalian development ex vivo. Medium-supplied nutrients can influence self-renewal, lineage specification, and earliest differentiation of pluripotent stem cells. However, which specific nutrients support these distinct outcomes, and their mechanisms of action, remain under active investigation. Here, we evaluate the available data on nutrients and their metabolic conversion that influence pluripotent stem cell fates. We also discuss key questions open for investigation in this rapidly expanding area of increasing fundamental and practical importance.
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Affiliation(s)
- Vivian Lu
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Irena J Roy
- Developmental and Stem Cell Biology, School of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Michael A Teitell
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, California NanoSystems Institute, and Broad Center for Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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4
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Regulation of mRNA translation in stem cells; links to brain disorders. Cell Signal 2021; 88:110166. [PMID: 34624487 DOI: 10.1016/j.cellsig.2021.110166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/09/2021] [Accepted: 09/29/2021] [Indexed: 11/22/2022]
Abstract
Translational control of gene expression is emerging as a cardinal step in the regulation of protein abundance. Especially for embryonic (ESC) and neuronal stem cells (NSC), regulation of mRNA translation is involved in the maintenance of pluripotency but also differentiation. For neuronal stem cells this regulation is linked to the various neuronal subtypes that arise in the developing brain and is linked to numerous brain disorders. Herein, we review translational control mechanisms in ESCs and NSCs during development and differentiation, and briefly discuss their link to brain disorders.
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Abstract
Blood is generated throughout life by continued proliferation and differentiation of hematopoietic progenitors, while at the top of the hierarchy, hematopoietic stem cells (HSCs) remain largely quiescent. This way HSCs avoid senescence and preserve their capacity to repopulate the hematopoietic system. But HSCs are not always quiescent, proliferating extensively in conditions such as those found in the fetal liver. Understanding the elusive mechanisms that regulate HSC fate would enable us to comprehend a crucial piece of HSC biology and pave the way for ex-vivo HSC expansion with clear clinical benefit. Here we review how metabolism, endoplasmic reticulum stress and oxidative stress condition impact HSCs decision to self-renew or differentiate and how these signals integrate into the mammalian target of rapamycin (mTOR) pathway. We argue that the bone marrow microenvironment continuously favors differentiation through the activation of the mTOR complex (mTORC)1 signaling, while the fetal liver microenvironment favors self-renewal through the inverse mechanism. In addition, we also postulate that strategies that have successfully achieved HSC expansion, directly or indirectly, lead to the inactivation of mTORC1. Finally, we propose a mechanism by which mTOR signaling, during cell division, conditions HSC fate. This mechanism has already been demonstrated in mature hematopoietic cells (T-cells), that face a similar decision after activation, either undergoing clonal expansion or differentiation.
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Zhang F, Zhu Y, Chen J, Kuang W, Huang R, Duan F, Li Y, Wang L, Qiu H, Chen X, Ming J, Liu P, Du Y, Chang SCN, Chen L, Na J. Efficient endothelial and smooth muscle cell differentiation from human pluripotent stem cells through a simplified insulin-free culture system. Biomaterials 2021; 271:120713. [PMID: 33618219 DOI: 10.1016/j.biomaterials.2021.120713] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 01/19/2021] [Accepted: 02/06/2021] [Indexed: 02/07/2023]
Abstract
A major obstacle for using human pluripotent stem cells (hPSCs) derived vascular cells for cell therapy is the lack of simple, cost-saving, and scalable methods for cell production. Here we described a simplified and chemically defined medium (AATS) for endothelial cells (ECs) and smooth muscle cells (SMCs) differentiation. AATS medium does not contain insulin, enabling the rapid and highly efficient vascular mesoderm formation through accelerating metabolic and autophagy-enhanced mesoderm induction. Transcriptome profiling confirmed that hPSC-derived ECs and SMCs in the AATS medium closely resembled primary ECs and SMCs formed in vivo. ECs appeared to adhere and grow better in the AATS medium over other cell types, which allowed the purification of CD31+CD144+ double-positive cells. Furthermore, the AATS medium was compatible with 3D microscaffold (MS) culture, which may facilitate large-scale bioproduction of ECs. HPSC-derived ECs and SMCs in the AATS medium exhibited strong revascularization potential in treating murine ischemic models. Our study provided a cost-effective and efficient medium system to manufacture GMP compatible, off-the-shelf ECs, and SMCs to model human diseases and vascular repair.
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Affiliation(s)
- Fengzhi Zhang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yonglin Zhu
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Jing Chen
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Wenhua Kuang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Rujin Huang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Fuyu Duan
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yaqian Li
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Lin Wang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Hui Qiu
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Xia Chen
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Jia Ming
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Peng Liu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yanan Du
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | | | - Ligong Chen
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Jie Na
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China.
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Lanza F, Seghatchian J. Trends and targets of various types of stem cell derived transfusable RBC substitution therapy: Obstacles that need to be converted to opportunity. Transfus Apher Sci 2020; 59:102941. [PMID: 32958397 PMCID: PMC7474814 DOI: 10.1016/j.transci.2020.102941] [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: 02/04/2023]
Abstract
A shortage of blood during the pandemic outbreak of COVID-19 is a typical example in which the maintenance of a safe and adequate blood supply becomes difficult and highly demanding. So far, human RBCs have been produced in vitro using diverse sources: hematopoietic stem cells (SCs), embryonic SCs and induced pluripotent SCs. The existing, even safest core of conventional cellular bioproducts destined for transfusion have some shortcoming in respects to: donor -dependency variability in terms of hematological /immunological and process/ storage period issues. SCs-derived transfusable RBC bioproducts, as one blood group type for all, were highly complex to work out. Moreover, the strategies for their successful production are often dependent upon the right selection of starting source materials and the composition and the stability of the right expansion media and the strict compliance to GMP regulatory processes. In this mini-review we highlight some model studies, which showed that the efficiency and the functionality of RBCs that could be produced by the various types of SCs, in relation to the in-vitro culture procedures are such that they may, potentially, be used at an industrial level. However, all cultured products do not have an unlimited life due to the critical metabolic pathways or the metabolites produced. New bioreactors are needed to remove these shortcomings and the development of a new mouse model is required. Modern clinical trials based on the employment of regenerative medicine approaches in combination with novel large-scale bioengineering tools, could overcome the current obstacles in artificial RBC substitution, possibly allowing an efficient RBC industrial production.
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Affiliation(s)
- Francesco Lanza
- Romagna Transplant Network, Hematology Unit, Ravenna Hospital & University of Ferrara-Italy, Via Randi 5, Ravenna, Italy.
| | - Jerard Seghatchian
- International Consultancy in Strategic Safety/Quality Innovations of Blood-Derived Bioproducts and Quality Audit/ Inspection, London, England, UK.
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8
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Chen Z, Li L, Wu W, Liu Z, Huang Y, Yang L, Luo Q, Chen J, Hou Y, Song G. Exercise protects proliferative muscle satellite cells against exhaustion via the Igfbp7-Akt-mTOR axis. Theranostics 2020; 10:6448-6466. [PMID: 32483463 PMCID: PMC7255041 DOI: 10.7150/thno.43577] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/01/2020] [Indexed: 12/14/2022] Open
Abstract
Background and Purpose: The exhaustion of muscle satellite cells (SCs) is correlated with muscle diseases, including sarcopenia and Duchenne muscular dystrophy. Exercise benefits skeletal muscle homeostasis and promotes proliferation of SCs. Elucidating the molecular mechanism underlying the muscle function-improving effect of exercise has important implications in regenerative medicine. Methods: Herein, we investigated the effect of 4-week treadmill training on skeletal muscle and SCs in mice. Hematoxylin and eosin (HE) staining was utilized to detect the morphometry of skeletal muscles. Flow cytometry and immunofluorescence were conducted to analyze the abundance and cell cycle of SCs. RNA sequencing was performed to elucidate the transcriptional regulatory network of SCs. The ChIP-PCR assay was used to detect enrichment of H3K27ac at the promoters of Akt. Results: We observed that exercise resulted in muscle hypertrophy and improved muscle regeneration in mice. Unexpectedly, exercise promoted cell cycling but suppressed the Akt-mTOR pathway in SCs. Proliferative SCs in “exercised mice” required suppressed mTOR activity to limit mitochondrial metabolism, maintaining the “limited activation status” of SCs against exhaustion. Mechanistically, exercise upregulated the expression of Igfbp7, thereby impeding the phosphorylation of Akt and resulting in inhibited mTOR activity and limited mitochondrial metabolism. The limited mitochondrial metabolism resulted in hypoacetylation of histone 3 and reduced enrichment of H3K27ac at promoters of Akt, decreasing the transcription of Akt. Moreover, repeatedly injured mice showed a preserved SC pool and improved muscle regeneration by the suppression of Akt-mTOR signaling. Conclusions: The findings of our study show that exercise protects proliferative SCs against exhaustion via the Igfbp7-Akt-mTOR axis. These findings establish a link between mechanical signaling, mitochondrial metabolism, epigenetic modification, and stem cell fate decisions; thus, present potential therapeutic targets for muscle diseases correlated with SC exhaustion.
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Rodrigues AS, Pereira SL, Ramalho-Santos J. Stem metabolism: Insights from oncometabolism and vice versa. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165760. [PMID: 32151634 DOI: 10.1016/j.bbadis.2020.165760] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/16/2020] [Accepted: 03/04/2020] [Indexed: 02/06/2023]
Abstract
Metabolism, is a transversal hot research topic in different areas, resulting in the integration of cellular needs with external cues, involving a highly coordinated set of activities in which nutrients are converted into building blocks for macromolecules, energy currencies and biomass. Importantly, cells can adjust different metabolic pathways defining its cellular identity. Both cancer cell and embryonic stem cells share the common hallmark of high proliferative ability but while the first represent a huge social-economic burden the second symbolize a huge promise. Importantly, research on both fields points out that stem cells share common metabolic strategies with cancer cells to maintain their identity as well as proliferative capability and, vice versa cancer cells also share common strategies regarding pluripotent markers. Moreover, the Warburg effect can be found in highly proliferative non-cancer stem cells as well as in embryonic stem cells that are primed towards differentiation, while a bivalent metabolism is characteristic of embryonic stem cells that are in a true naïve pluripotent state and cancer stem cells can also range from glycolysis to oxidative phosphorylation. Therefore, this review aims to highlight major metabolic similarities between cancer cells and embryonic stem cells demonstrating that they have similar strategies in both signaling pathways regulation as well as metabolic profiles while focusing on key metabolites.
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Affiliation(s)
- Ana Sofia Rodrigues
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Faculty of Medicine, Pólo I, 3004-504 Coimbra, Portugal.
| | - Sandro L Pereira
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.
| | - João Ramalho-Santos
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Faculty of Medicine, Pólo I, 3004-504 Coimbra, Portugal; Department of Life Sciences, University of Coimbra, Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal.
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10
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Madsen RR. PI3K in stemness regulation: from development to cancer. Biochem Soc Trans 2020; 48:301-315. [PMID: 32010943 PMCID: PMC7054754 DOI: 10.1042/bst20190778] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 01/04/2020] [Accepted: 01/07/2020] [Indexed: 02/08/2023]
Abstract
The PI3K/AKT pathway is a key target in oncology where most efforts are focussed on phenotypes such as cell proliferation and survival. Comparatively, little attention has been paid to PI3K in stemness regulation, despite the emerging link between acquisition of stem cell-like features and therapeutic failure in cancer. The aim of this review is to summarise current known and unknowns of PI3K-dependent stemness regulation, by integrating knowledge from the fields of developmental, signalling and cancer biology. Particular attention is given to the role of the PI3K pathway in pluripotent stem cells (PSCs) and the emerging parallels to dedifferentiated cancer cells with stem cell-like features. Compelling evidence suggests that PI3K/AKT signalling forms part of a 'core molecular stemness programme' in both mouse and human PSCs. In cancer, the oncogenic PIK3CAH1047R variant causes constitutive activation of the PI3K pathway and has recently been linked to increased stemness in a dose-dependent manner, similar to observations in mouse PSCs with heterozygous versus homozygous Pten loss. There is also evidence that the stemness phenotype may become 'locked' and thus independent of the original PI3K activation, posing limitations for the success of PI3K monotherapy in cancer. Ongoing therapeutic developments for PI3K-associated cancers may therefore benefit from a better understanding of the pathway's two-layered and highly context-dependent regulation of cell growth versus stemness.
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Affiliation(s)
- Ralitsa R. Madsen
- UCL Cancer Institute, Paul O'Gorman Building, University College London, 72 Huntley Street, London WC1E 6DD, U.K
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11
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Song C, Xu F, Ren Z, Zhang Y, Meng Y, Yang Y, Lingadahalli S, Cheung E, Li G, Liu W, Wan J, Zhao Y, Chen G. Elevated Exogenous Pyruvate Potentiates Mesodermal Differentiation through Metabolic Modulation and AMPK/mTOR Pathway in Human Embryonic Stem Cells. Stem Cell Reports 2019; 13:338-351. [PMID: 31353224 PMCID: PMC6700476 DOI: 10.1016/j.stemcr.2019.06.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 06/21/2019] [Accepted: 06/21/2019] [Indexed: 02/07/2023] Open
Abstract
Pyruvate is a key metabolite in glycolysis and the tricarboxylic acid (TCA) cycle. Exogenous pyruvate modulates metabolism, provides cellular protection, and is essential for the maintenance of human preimplantation embryos and human embryonic stem cells (hESCs). However, little is known about how pyruvate contributes to cell-fate determination during epiblast stage. In this study, we used hESCs as a model to demonstrate that elevated exogenous pyruvate shifts metabolic balance toward oxidative phosphorylation in both maintenance and differentiation conditions. During differentiation, pyruvate potentiates mesoderm and endoderm lineage specification. Pyruvate production and its mitochondrial metabolism are required in BMP4-induced mesoderm differentiation. However, the TCA-cycle metabolites do not have the same effect as pyruvate on differentiation. Further study shows that pyruvate increases AMP/ATP ratio, activates AMPK, and modulates the mTOR pathway to enhance mesoderm differentiation. This study reveals that exogenous pyruvate not only controls metabolism but also modulates signaling pathways in hESC differentiation.
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Affiliation(s)
- Chengcheng Song
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China
| | - Faxiang Xu
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China
| | - Zhili Ren
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China
| | - Yumeng Zhang
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China
| | - Ya Meng
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China; Center of Interventional Radiology, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Jinan University, Zhuhai, Guangdong 519000, China
| | - Yiqi Yang
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau, China
| | | | - Edwin Cheung
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau, China
| | - Gang Li
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau, China
| | - Weiwei Liu
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China; Bioimaging and Stem Cell Core Facility, Faculty of Health Sciences, University of Macau, Macau, China
| | - Jianbo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yang Zhao
- The MOE Key Laboratory of Cell Proliferation and Differentiation, College of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Guokai Chen
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China; Bioimaging and Stem Cell Core Facility, Faculty of Health Sciences, University of Macau, Macau, China.
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12
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Tewary M, Shakiba N, Zandstra PW. Stem cell bioengineering: building from stem cell biology. Nat Rev Genet 2019; 19:595-614. [PMID: 30089805 DOI: 10.1038/s41576-018-0040-z] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
New fundamental discoveries in stem cell biology have yielded potentially transformative regenerative therapeutics. However, widespread implementation of stem-cell-derived therapeutics remains sporadic. Barriers that impede the development of these therapeutics can be linked to our incomplete understanding of how the regulatory networks that encode stem cell fate govern the development of the complex tissues and organs that are ultimately required for restorative function. Bioengineering tools, strategies and design principles represent core components of the stem cell bioengineering toolbox. Applied to the different layers of complexity present in stem-cell-derived systems - from gene regulatory networks in single stem cells to the systemic interactions of stem-cell-derived organs and tissues - stem cell bioengineering can address existing challenges and advance regenerative medicine and cellular therapies.
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Affiliation(s)
- Mukul Tewary
- Institute of Biomaterials and Biomedical Engineering (IBBME) and The Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada.,Collaborative Program in Developmental Biology, University of Toronto, Toronto, Ontario, Canada
| | - Nika Shakiba
- Institute of Biomaterials and Biomedical Engineering (IBBME) and The Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
| | - Peter W Zandstra
- Institute of Biomaterials and Biomedical Engineering (IBBME) and The Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada. .,Collaborative Program in Developmental Biology, University of Toronto, Toronto, Ontario, Canada. .,Michael Smith Laboratories and School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada.
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13
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Christaki EE, Politou M, Antonelou M, Athanasopoulos A, Simantirakis E, Seghatchian J, Vassilopoulos G. Ex vivo generation of transfusable red blood cells from various stem cell sources: A concise revisit of where we are now. Transfus Apher Sci 2019; 58:108-112. [DOI: 10.1016/j.transci.2018.12.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Ostblom J, Nazareth EJP, Tewary M, Zandstra PW. Context-explorer: Analysis of spatially organized protein expression in high-throughput screens. PLoS Comput Biol 2019; 15:e1006384. [PMID: 30601802 PMCID: PMC6331134 DOI: 10.1371/journal.pcbi.1006384] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 01/14/2019] [Accepted: 11/08/2018] [Indexed: 11/18/2022] Open
Abstract
A growing body of evidence highlights the importance of the cellular microenvironment as a regulator of phenotypic and functional cellular responses to perturbations. We have previously developed cell patterning techniques to control population context parameters, and here we demonstrate context-explorer (CE), a software tool to improve investigation cell fate acquisitions through community level analyses. We demonstrate the capabilities of CE in the analysis of human and mouse pluripotent stem cells (hPSCs, mPSCs) patterned in colonies of defined geometries in multi-well plates. CE employs a density-based clustering algorithm to identify cell colonies. Using this automatic colony classification methodology, we reach accuracies comparable to manual colony counts in a fraction of the time, both in micropatterned and unpatterned wells. Classifying cells according to their relative position within a colony enables statistical analysis of spatial organization in protein expression within colonies. When applied to colonies of hPSCs, our analysis reveals a radial gradient in the expression of the transcription factors SOX2 and OCT4. We extend these analyses to colonies of different sizes and shapes and demonstrate how the metrics derived by CE can be used to asses the patterning fidelity of micropatterned plates. We have incorporated a number of features to enhance the usability and utility of CE. To appeal to a broad scientific community, all of the software’s functionality is accessible from a graphical user interface, and convenience functions for several common data operations are included. CE is compatible with existing image analysis programs such as CellProfiler and extends the analytical capabilities already provided by these tools. Taken together, CE facilitates investigation of spatially heterogeneous cell populations for fundamental research and drug development validation programs. Cell behavior is influenced by cues that cells receive from their surrounding environment such as signals secreted from other cells and cell-to-cell contact. These factors are spatially heterogeneous and cells at different positions within a colony will experience varying degrees of influence from such environmental cues. In vitro assays often do not allow control over environmental variables and there is a lack of easy to use software to investigate the effect of spatial variation in these factors. We have developed a software package to address this gap and facilitate the quantification of spatially heterogeneous cell responses. Our software accurately identifies colonies of cells within a well and individual cells can be grouped according to their position within these colonies, which enables quantification of cell response as a function of cellular location. To support broad scientific accessibility, the full functionality of the software is available through a graphical user interface. Using this software to analyze data from a screening-optimized micropatterning platform, we show that human pluripotent stem cell-derived colonies grown either under pluripotency maintenance or differentiation-inducing conditions exhibit cell responses that are dependent on spatial organization. This technology should enable more accurate and predictive context-dependent drug screening and cell-fate investigation.
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Affiliation(s)
- Joel Ostblom
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
- The Donnelly Centre, University of Toronto, Toronto, ON, Canada
| | - Emanuel J. P. Nazareth
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
- The Donnelly Centre, University of Toronto, Toronto, ON, Canada
| | - Mukul Tewary
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
- The Donnelly Centre, University of Toronto, Toronto, ON, Canada
| | - Peter W. Zandstra
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
- The Donnelly Centre, University of Toronto, Toronto, ON, Canada
- Medicine by Design, A Canada First Research Excellence Program at the University of Toronto, Toronto, ON, Canada
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
- * E-mail:
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15
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Abstract
Mammalian target of rapamycin (mTOR) is a conserved serine/threonine kinase of the phosphatidylinositol kinase-related kinase family that regulates cell growth, metabolism, and autophagy. Extensive research has linked mTOR to several human diseases including cancer, neurodegenerative disorders, and aging. In this review, recent publications regarding the mechanisms underlying the role of mTOR in female reproduction under physiological and pathological conditions are summarized. Moreover, we assess whether strategies to improve or suppress mTOR expression could have therapeutic potential for reproductive diseases like premature ovarian failure, polycystic ovarian syndrome, and endometriosis.
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16
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Lee E, Sivalingam J, Lim ZR, Chia G, Shi LG, Roberts M, Loh YH, Reuveny S, Oh SKW. Review: In vitro generation of red blood cells for transfusion medicine: Progress, prospects and challenges. Biotechnol Adv 2018; 36:2118-2128. [PMID: 30273713 DOI: 10.1016/j.biotechadv.2018.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 09/19/2018] [Accepted: 09/27/2018] [Indexed: 02/07/2023]
Abstract
In vitro generation of red blood cells (RBCs) has the potential to circumvent the shortfalls in global demand for blood for transfusion applications. The conventional approach for RBC generation has been from differentiation of hematopoietic stem cells (HSCs) derived from cord blood, adult bone marrow or peripheral blood. More recently, RBCs have been generated from human induced pluripotent stem cells (hiPSCs) as well as from immortalized adult erythroid progenitors. In this review, we highlight the recent advances to RBC generation from these different approaches and discuss the challenges and new strategies that can potentially make large-scale in vitro generation of RBCs a feasible approach.
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Affiliation(s)
- Esmond Lee
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668, Republic of Singapore; Institute for Stem Cell Biology and Regenerative Medicine, Stanford University, Palo Alto, CA 94305, USA.
| | - Jaichandran Sivalingam
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668, Republic of Singapore.
| | - Zhong Ri Lim
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668, Republic of Singapore
| | - Gloryn Chia
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668, Republic of Singapore
| | - Low Gin Shi
- Brilliant Research Pte. Ltd, Singapore 139955, Republic of Singapore
| | - Mackenna Roberts
- Oxford-University College London Centre for the Advancement of Sustainable Medical Innovation, University of Oxford, UK
| | - Yuin-Han Loh
- Institute of Molecular and Cellular Biology, Agency for Science, Technology and Research, Singapore 138668, Republic of Singapore; Department of Biological Sciences, National University of Singapore, Singapore 117543, Republic of Singapore
| | - Shaul Reuveny
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668, Republic of Singapore
| | - Steve Kah-Weng Oh
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668, Republic of Singapore
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17
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Abstract
Birth defects are a common occurrence in the United States and worldwide. Currently, evaluation of potential developmental toxicants (i.e., teratogens) relies heavily on animal-based models which do not always adequately mimic human development. In order to address this, researchers are developing in vitro human-based models which utilize human pluripotent stem cells (hPSCs) to assess the teratogenic potential of chemical substances. The field of human developmental toxicity assays includes a variety of platforms including monolayer, micropattern, embryoid body, and 3D organoid cultures. In this review, we will overview the field of human teratogenic assays, detail the most recent advances, and discuss current limitations and future perspectives.
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Affiliation(s)
- Kathryn E Worley
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Biotech 2147, 110 8th Street, Troy, NY 12180, USA.
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18
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Duan F, Huang R, Zhang F, Zhu Y, Wang L, Chen X, Bai L, Guo W, Chang SCN, Hu X, Na J. Biphasic modulation of insulin signaling enables highly efficient hematopoietic differentiation from human pluripotent stem cells. Stem Cell Res Ther 2018; 9:205. [PMID: 30053898 PMCID: PMC6062919 DOI: 10.1186/s13287-018-0934-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/15/2018] [Accepted: 06/18/2018] [Indexed: 12/23/2022] Open
Abstract
Background Hematopoietic lineage cells derived from human pluripotent stem cells (hPSCs) hold great promise for the treatment of hematological diseases and providing sufficient cells for immune therapy. However, a simple, cost-effective method to generate large quantities of hematopoietic stem/progenitor cells (HSPCs) is not yet available. Methods We established a monolayer, chemically defined culture system to induce hematopoietic differentiation from hPSCs in 8 days. Results We found that insulin-free medium allowed hPSCs to leave pluripotency promptly and preferably enter the vascular lineage. Addition of insulin during the later stage of differentiation was essential for the efficient induction of hemogenic endothelium and the emergence of large numbers of CD34+CD43+ HSPCs, while no insulin condition preferably permits endothelial differentiation. Global transcriptome profiling revealed that HSPCs differentiated using our protocol were similar to embryoid body-derived HSPCs. HSPCs obtained from our differentiation system formed robust erythroid, granulocyte and monocyte/macrophage colonies in CFU assay, and can be induced to generate functional macrophages with robust phagocytic ability. Conclusion Our results demonstrated that proper manipulation of insulin-mTOR signaling can greatly facilitate HSPC formation. This finding can be further exploited to formulate cost-effective differentiation medium to generate large quantities of cells of desired blood lineages for regenerative medicine. Electronic supplementary material The online version of this article (10.1186/s13287-018-0934-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fuyu Duan
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Rujin Huang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Fengzhi Zhang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yonglin Zhu
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Lin Wang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Xia Chen
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Lufeng Bai
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Wei Guo
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China.,Zhejiang University International Campus, Haining, Zhejiang Province, China
| | - Sophia Chia-Ning Chang
- School of Clinical Medicine, Tsinghua University, Beijing, 100084, China.,School of Medicine, China Medical University, Taichung, Taiwan
| | - Xiaoyu Hu
- Institute of Immunology and School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Jie Na
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, 100084, China.
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19
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Abstract
The mammalian target of rapamycin (mTOR) senses nutrients and growth factors to coordinate cell growth, metabolism and autophagy. Extensive research has mapped the signaling pathways regulated by mTOR that are involved in human diseases, such as cancer, and in diabetes and ageing. Recently, however, new studies have demonstrated important roles for mTOR in promoting the differentiation of adult stem cells, driving the growth and proliferation of stem and progenitor cells, and dictating the differentiation program of multipotent stem cell populations. Here, we review these advances, providing an overview of mTOR signaling and its role in murine and human stem and progenitor cells.
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Affiliation(s)
- Delong Meng
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Anderson R Frank
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jenna L Jewell
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA .,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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20
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Kim JH, Kurtz A, Yuan BZ, Zeng F, Lomax G, Loring JF, Crook J, Ju JH, Clarke L, Inamdar MS, Pera M, Firpo MT, Sheldon M, Rahman N, O'Shea O, Pranke P, Zhou Q, Isasi R, Rungsiwiwut R, Kawamata S, Oh S, Ludwig T, Masui T, Novak TJ, Takahashi T, Fujibuchi W, Koo SK, Stacey GN. Report of the International Stem Cell Banking Initiative Workshop Activity: Current Hurdles and Progress in Seed-Stock Banking of Human Pluripotent Stem Cells. Stem Cells Transl Med 2017; 6:1956-1962. [PMID: 29067781 PMCID: PMC6430055 DOI: 10.1002/sctm.17-0144] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 07/18/2017] [Indexed: 12/14/2022] Open
Abstract
This article summarizes the recent activity of the International Stem Cell Banking Initiative (ISCBI) held at the California Institute for Regenerative Medicine (CIRM) in California (June 26, 2016) and the Korean National Institutes for Health in Korea (October 19-20, 2016). Through the workshops, ISCBI is endeavoring to support a new paradigm for human medicine using pluripotent stem cells (hPSC) for cell therapies. Priority considerations for ISCBI include ensuring the safety and efficacy of a final cell therapy product and quality assured source materials, such as stem cells and primary donor cells. To these ends, ISCBI aims to promote global harmonization on quality and safety control of stem cells for research and the development of starting materials for cell therapies, with regular workshops involving hPSC banking centers, biologists, and regulatory bodies. Here, we provide a brief overview of two such recent activities, with summaries of key issues raised. Stem Cells Translational Medicine 2017;6:1956-1962.
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Affiliation(s)
- Jung-Hyun Kim
- Korea Stem Cell Bank, Center for Biomedical Sciences, Korea National Institute of Health (KNIH), Osong, South Korea
| | | | - Bao-Zhu Yuan
- Cell Collection and Research Center, National Institutes for Food and Drug Control, Beijing, China
| | - Fanyi Zeng
- Shanghai Institute of Medical Genetics, Shanghai Jiao Tong University, Shanghai, China
| | - Geoff Lomax
- California Institute for Regenerative Medicine, Oakland, CA, USA
| | - Jeanne F Loring
- Department of Molecular Medicine Center for Regenerative Medicine The Scripps Research Institute, San Diego, CA, USA
| | - Jeremy Crook
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, Fairy Meadow, New South Wales, Australia.,Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, New South Wales, Australia.,Department of Surgery, St. Vincent's Hospital, The University of Melbourne, Fitzroy, Victoria, Australia
| | | | - Laura Clarke
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Maneesha S Inamdar
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India
| | | | - Meri T Firpo
- Stem Cell Institute and Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Michael Sheldon
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ
| | | | - Orla O'Shea
- UK Stem Cell Bank, Division of Advanced Therapies, NIBSC, South Mimms, UK
| | - Patricia Pranke
- Stem Cell Research Institute, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Qi Zhou
- Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Rosario Isasi
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ruttachuk Rungsiwiwut
- Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Shin Kawamata
- Foundation for Biomedical Research and Innovation, Kobe, Japan
| | - Steve Oh
- Stem Cell Group, Bioprocessing Technology Institute, A*STAR, Singapore
| | | | | | | | | | - Wataru Fujibuchi
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Soo Kyung Koo
- Korea Stem Cell Bank, Center for Biomedical Sciences, Korea National Institute of Health (KNIH), Osong, South Korea
| | - Glyn N Stacey
- UK Stem Cell Bank, Division of Advanced Therapies, NIBSC, South Mimms, UK
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21
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Rahman N, Brauer PM, Ho L, Usenko T, Tewary M, Zúñiga-Pflücker JC, Zandstra PW. Engineering the haemogenic niche mitigates endogenous inhibitory signals and controls pluripotent stem cell-derived blood emergence. Nat Commun 2017; 8:15380. [PMID: 28541275 PMCID: PMC5477512 DOI: 10.1038/ncomms15380] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 03/22/2017] [Indexed: 12/13/2022] Open
Abstract
Efforts to recapitulate haematopoiesis, a process guided by spatial and temporal inductive signals, to generate haematopoietic progenitors from human pluripotent stem cells (hPSCs) have focused primarily on exogenous signalling pathway activation or inhibition. Here we show haemogenic niches can be engineered using microfabrication strategies by micropatterning hPSC-derived haemogenic endothelial (HE) cells into spatially-organized, size-controlled colonies. CD34+VECAD+ HE cells were generated with multi-lineage potential in serum-free conditions and cultured as size-specific haemogenic niches that displayed enhanced blood cell induction over non-micropatterned cultures. Intra-colony analysis revealed radial organization of CD34 and VECAD expression levels, with CD45+ blood cells emerging primarily from the colony centroid area. We identify the induced interferon gamma protein (IP-10)/p-38 MAPK signalling pathway as the mechanism for haematopoietic inhibition in our culture system. Our results highlight the role of spatial organization in hPSC-derived blood generation, and provide a quantitative platform for interrogating molecular pathways that regulate human haematopoiesis.
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Affiliation(s)
- Nafees Rahman
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3ES
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G9
| | - Patrick M. Brauer
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada M4N 3M5
| | - Lilian Ho
- Life Sciences (Biochemistry), University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Tatiana Usenko
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G9
| | - Mukul Tewary
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G9
- Collaborative Program in Developmental Biology, University of Toronto, Toronto, Ontario, Canada M5S 3E1
| | - Juan Carlos Zúñiga-Pflücker
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada M4N 3M5
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada M5S 1A8
- Medicine by Design, a Canada First Research Excellence Program at the University of Toronto, Toronto, Ontario, Canada M5S 3G9
| | - Peter W. Zandstra
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3ES
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G9
- Medicine by Design, a Canada First Research Excellence Program at the University of Toronto, Toronto, Ontario, Canada M5S 3G9
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada M5S 3E1
- Collaborative Program in Developmental Biology, University of Toronto, Toronto, Ontario, Canada M5S 3E1
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22
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Protein Kinases in Pluripotency—Beyond the Usual Suspects. J Mol Biol 2017; 429:1504-1520. [DOI: 10.1016/j.jmb.2017.04.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 04/21/2017] [Accepted: 04/21/2017] [Indexed: 12/14/2022]
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23
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Progenitor T-cell differentiation from hematopoietic stem cells using Delta-like-4 and VCAM-1. Nat Methods 2017; 14:531-538. [PMID: 28394335 DOI: 10.1038/nmeth.4258] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 03/07/2017] [Indexed: 12/28/2022]
Abstract
The molecular and cellular signals that guide T-cell development from hematopoietic stem and progenitor cells (HSPCs) remain poorly understood. The thymic microenvironment integrates multiple niche molecules to potentiate T-cell development in vivo. Recapitulating these signals in vitro in a stromal cell-free system has been challenging and limits T-cell generation technologies. Here, we describe a fully defined engineered in vitro niche capable of guiding T-lineage development from HSPCs. Synergistic interactions between Notch ligand Delta-like 4 and vascular cell adhesion molecule 1 (VCAM-1) were leveraged to enhance Notch signaling and progenitor T-cell differentiation rates. The engineered thymus-like niche enables in vitro production of mouse Sca-1+cKit+ and human CD34+ HSPC-derived CD7+ progenitor T-cells capable of in vivo thymus colonization and maturation into cytokine-producing CD3+ T-cells. This engineered thymic-like niche provides a platform for in vitro analysis of human T-cell development as well as clinical-scale cell production for future development of immunotherapeutic applications.
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