1
|
Ma X, Dai L, Tan C, Li J, He X, Wang Y, Xue J, Huang M, Ren J, Xia Y, Wu Q, Zhao H, Chan WY, Feng B. β-catenin mediates endodermal commitment of human ES cells via distinct transactivation functions. Cell Biosci 2024; 14:96. [PMID: 39049023 PMCID: PMC11267888 DOI: 10.1186/s13578-024-01279-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024] Open
Abstract
BACKGROUND β-catenin, acting as the core effector of canonical Wnt signaling pathway, plays a pivotal role in controlling lineage commitment and the formation of definitive endoderm (DE) during early embryonic development. Despite extensive studies using various animal and cell models, the β-catenin-centered regulatory mechanisms underlying DE formation remain incompletely understood, partly due to the rapid and complex cell fate transitions during early differentiation. RESULTS In this study, we generated new CTNNB1-/- human ES cells (hESCs) using CRISPR-based insertional gene disruption approach and systematically rescued the DE defect in these cells by introducing various truncated or mutant forms of β-catenin. Our analysis showed that a truncated β-catenin lacking both N- and C-terminal domains (ΔN148C) could robustly rescue the DE formation, whereas hyperactive β-catenin mutants with S33Y mutation or N-terminal deletion (ΔN90) had limited ability to induce DE lineage. Notably, the ΔN148C mutant exhibited significant nuclear translocation that was positively correlated with successful DE rescue. Transcriptomic analysis further uncovered that two weak β-catenin mutants lacking the C-terminal transactivation domain (CTD) activated primitive streak (PS) genes, whereas the hyperactive β-catenin mutants activated mesoderm genes. CONCLUSION Our study uncovered an unconventional regulatory function of β-catenin through weak transactivation, indicating that the levels of β-catenin activity determine the lineage bifurcation from mesendoderm into endoderm and mesoderm.
Collapse
Affiliation(s)
- Xun Ma
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
| | - Liujiang Dai
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
| | - Chunlai Tan
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jiangchuan Li
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiangjun He
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yaofeng Wang
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
| | - Junyi Xue
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Min Huang
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau SAR, China
| | - Jianwei Ren
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
| | - Yin Xia
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Qiang Wu
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau SAR, China
| | - Hui Zhao
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, 518000, China
| | - Wai-Yee Chan
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, 518000, China
| | - Bo Feng
- School of Biomedical Sciences, Faculty of Medicine, CUHK-GIBH CAS Joint Research Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China.
- Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
- The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, 518000, China.
| |
Collapse
|
2
|
Bisson JA, Gordillo M, Kumar R, de Silva N, Yang E, Banks KM, Shi ZD, Lee K, Yang D, Chung WK, Huangfu D, Evans T. GATA6 regulates WNT and BMP programs to pattern precardiac mesoderm during the earliest stages of human cardiogenesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.09.602666. [PMID: 39026742 PMCID: PMC11257636 DOI: 10.1101/2024.07.09.602666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Haploinsufficiency for GATA6 is associated with congenital heart disease (CHD) with variable comorbidity of pancreatic or diaphragm defects, although the etiology of disease is not well understood. Here, we used cardiac directed differentiation from human embryonic stem cells (hESCs) as a platform to study GATA6 function during early cardiogenesis. GATA6 loss-of-function hESCs had a profound impairment in cardiac progenitor cell (CPC) specification and cardiomyocyte (CM) generation due to early defects during the mesendoderm and lateral mesoderm patterning stages. Profiling by RNA-seq and CUT&RUN identified genes of the WNT and BMP programs regulated by GATA6 during early mesoderm patterning. Furthermore, interactome analysis detected GATA6 binding with developmental transcription factors and chromatin remodelers suggesting cooperative regulation of cardiac lineage gene accessibility. We show that modulating WNT and BMP inputs during the first 48 hours of cardiac differentiation is sufficient to partially rescue CPC and CM defects in GATA6 heterozygous and homozygous mutant hESCs. This study provides evidence of the regulatory functions for GATA6 directing human precardiac mesoderm patterning during the earliest stages of cardiogenesis to further our understanding of haploinsufficiency causing CHD and the co-occurrence of cardiac and other organ defects caused by human GATA6 mutations.
Collapse
Affiliation(s)
- Joseph A. Bisson
- Department of Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Miriam Gordillo
- Department of Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Ritu Kumar
- Department of Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
- current address: Gladstone Institutes, San Francisco, CA, 94158, USA
| | - Neranjan de Silva
- Department of Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Ellen Yang
- Department of Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Kelly M. Banks
- Department of Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Zhong-Dong Shi
- Developmental Biology Program, Sloan Kettering Institute, New York, NY, 10065, USA
| | - Kihyun Lee
- Developmental Biology Program, Sloan Kettering Institute, New York, NY, 10065, USA
- current address: College of Pharmacy, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Dapeng Yang
- Developmental Biology Program, Sloan Kettering Institute, New York, NY, 10065, USA
| | - Wendy K. Chung
- Childrens Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Danwei Huangfu
- Developmental Biology Program, Sloan Kettering Institute, New York, NY, 10065, USA
| | - Todd Evans
- Department of Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
- Hartman Institute for Therapeutic Organ Regeneration, Weill Cornell Medicine, New York, NY 10065, USA
- Center for Genomic Health, Weill Cornell Medicine, New York, NY 10065, USA
| |
Collapse
|
3
|
Lin S, Chen Q, Tan C, Su M, Min L, Ling L, Zhou J, Zhu T. ZEB family is a prognostic biomarker and correlates with anoikis and immune infiltration in kidney renal clear cell carcinoma. BMC Med Genomics 2024; 17:153. [PMID: 38840097 PMCID: PMC11151722 DOI: 10.1186/s12920-024-01895-7] [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: 12/27/2023] [Accepted: 04/28/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Zinc finger E-box binding homEeobox 1 (ZEB1) and ZEB2 are two anoikis-related transcription factors. The mRNA expressions of these two genes are significantly increased in kidney renal clear cell carcinoma (KIRC), which are associated with poor survival. Meanwhile, the mechanisms and clinical significance of ZEB1 and ZEB2 upregulation in KIRC remain unknown. METHODS Through the Cancer Genome Atlas (TCGA) database and Gene Expression Omnibus (GEO) database, expression profiles, prognostic value and receiver operating characteristic curves (ROCs) of ZEB1 and ZEB2 were evaluated. The correlations of ZEB1 and ZEB2 with anoikis were further assessed in TCGA-KIRC database. Next, miRTarBase, miRDB, and TargetScan were used to predict microRNAs targeting ZEB1 and ZEB2, and TCGA-KIRC database was utilized to discern differences in microRNAs and establish the association between microRNAs and ZEBs. TCGA, TIMER, TISIDB, and TISCH were used to analyze tumor immune infiltration. RESULTS It was found that ZEB1 and ZEB2 expression were related with histologic grade in KIRC patient. Kaplan-Meier survival analyses showed that KIRC patients with low ZEB1 or ZEB2 levels had a significantly lower survival rate. Meanwhile, ZEB1 and ZEB2 are closely related to anoikis and are regulated by microRNAs. We constructed a risk model using univariate Cox and LASSO regression analyses to identify two microRNAs (hsa-miR-130b-3p and hsa-miR-138-5p). Furthermore, ZEB1 and ZEB2 regulate immune cell invasion in KIRC tumor microenvironments. CONCLUSIONS Anoikis, cytotoxic immune cell infiltration, and patient survival outcomes were correlated with ZEB1 and ZEB2 mRNA upregulation in KIRC. ZEB1 and ZEB2 are regulated by microRNAs.
Collapse
Affiliation(s)
- Sheng Lin
- Department of Laboratory Medicine, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Qi Chen
- Department of Urology, Foshan First People's Hospital, Foshan City, Guangdong Province, China
| | - Canliang Tan
- Department of general surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Manyi Su
- Department of Laboratory Medicine, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Ling Min
- Department of Laboratory Medicine, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Lv Ling
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Junhao Zhou
- Department of general surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong Province, China.
- KingMed school of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong Province, China.
| | - Ting Zhu
- Department of Laboratory Medicine, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, China.
- KingMed school of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong Province, China.
| |
Collapse
|
4
|
Xia Y, Wu Y, Gong Y, Yue C, Tao L, Xin T, Shen C, Zhu Y, Shen M, Shen J. Brachyury promotes extracellular matrix synthesis through transcriptional regulation of Smad3 in nucleus pulposus. Am J Physiol Cell Physiol 2024; 326:C1384-C1397. [PMID: 38690917 PMCID: PMC11371320 DOI: 10.1152/ajpcell.00475.2023] [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: 09/21/2023] [Revised: 01/18/2024] [Accepted: 02/20/2024] [Indexed: 05/03/2024]
Abstract
Metabolic dysfunction of the extracellular matrix (ECM) is one of the primary causes of intervertebral disc degeneration (IVDD). Previous studies have demonstrated that the transcription factor Brachyury (Bry) has the potential to promote the synthesis of collagen II and aggrecan, while the specific mechanism is still unknown. In this study, we used a lipopolysaccharide (LPS)-induced model of nucleus pulposus cell (NPC) degeneration and a rat acupuncture IVDD model to elucidate the precise mechanism through which Bry affects collagen II and aggrecan synthesis in vitro and in vivo. First, we confirmed Bry expression decreased in degenerated human nucleus pulposus (NP) cells (NPCs). Knockdown of Bry exacerbated the decrease in collagen II and aggrecan expression in the lipopolysaccharide (LPS)-induced NPCs degeneration in vitro model. Bioinformatic analysis indicated that Smad3 may participate in the regulatory pathway of ECM synthesis regulated by Bry. Chromatin immunoprecipitation followed by quantitative polymerase chain reaction (ChIP-qPCR) and luciferase reporter gene assays demonstrated that Bry enhances the transcription of Smad3 by interacting with a specific motif on the promoter region. In addition, Western blot and reverse transcription-qPCR assays demonstrated that Smad3 positively regulates the expression of aggrecan and collagen II in NPCs. The following rescue experiments revealed that Bry-mediated regulation of ECM synthesis is partially dependent on Smad3 phosphorylation. Finally, the findings from the in vivo rat acupuncture-induced IVDD model were consistent with those obtained from in vitro assays. In conclusion, this study reveals that Bry positively regulates the synthesis of collagen II and aggrecan in NP through transcriptional activation of Smad3.NEW & NOTEWORTHY Mechanically, in the nucleus, Bry enhances the transcription of Smad3, leading to increased expression of Smad3 protein levels; in the cytoplasm, elevated substrate levels further lead to an increase in the phosphorylation of Smad3, thereby regulating collagen II and aggrecan expression. Further in vivo experiments provide additional evidence that Bry can alleviate IVDD through this mechanism.
Collapse
Affiliation(s)
- Yanzhang Xia
- Department of Orthopedics Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou University, Suzhou, People's Republic of China
| | - Yinghui Wu
- Department of Orthopedics Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou University, Suzhou, People's Republic of China
| | - Yuhao Gong
- Department of Orthopedics Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou University, Suzhou, People's Republic of China
| | - Caichun Yue
- Department of Orthopedics Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou University, Suzhou, People's Republic of China
| | - Linfeng Tao
- Department of Critical Care Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Tianwen Xin
- Department of Orthopedics Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou University, Suzhou, People's Republic of China
| | - Cong Shen
- State Key Laboratory of Reproductive Medicine, Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Yue Zhu
- Department of Breast and Thyroid Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Minghong Shen
- Department of Pathology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Jun Shen
- Department of Orthopedics Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou University, Suzhou, People's Republic of China
| |
Collapse
|
5
|
Maruyama K, Miyazaki S, Kobayashi R, Hikita H, Tsubone T, Ohnuma K. The migration pattern of cells during the mesoderm and endoderm differentiation from human pluripotent stem cells. In Vitro Cell Dev Biol Anim 2024; 60:535-543. [PMID: 38656570 DOI: 10.1007/s11626-024-00904-4] [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: 12/26/2023] [Accepted: 03/16/2024] [Indexed: 04/26/2024]
Abstract
Gastrulation is the first major differentiation process in animal embryos. However, the dynamics of human gastrulation remain mostly unknown owing to the ethical limitations. We studied the dynamics of the mesoderm and endoderm cell differentiation from human pluripotent stem cells for insight into the cellular dynamics of human gastrulation. Human pluripotent stem cells have properties similar to those of the epiblast, which gives rise to the three germ layers. The mesoderm and endoderm were induced with more than 75% purity from human induced pluripotent stem cells. Single-cell dynamics of pluripotent stem cell-derived mesoderm and endoderm cells were traced using time-lapse imaging. Both mesoderm and endoderm cells migrate randomly, accompanied by short-term directional persistence. No substantial differences were detected between mesoderm and endoderm migration. Computer simulations created using the measured parameters revealed that random movement and external force, such as the spread out of cells from the primitive streak area, mimicked the homogeneous discoidal germ layer formation. These results were consistent with the development of amniotes, which suggests the effectiveness of human pluripotent stem cells as a good model for studying human embryogenesis.
Collapse
Affiliation(s)
- Kenshiro Maruyama
- Department of Science of Technology Innovation, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Shota Miyazaki
- Department of Bioengineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Ryo Kobayashi
- Department of Bioengineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Haru Hikita
- Department of Electrical, Electronics and Information Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Tadashi Tsubone
- Department of Electrical, Electronics and Information Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Kiyoshi Ohnuma
- Department of Science of Technology Innovation, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan.
- Department of Bioengineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan.
| |
Collapse
|
6
|
Ortiz-Salazar MA, Camacho-Aguilar E, Warmflash A. Endogenous Nodal switches Wnt interpretation from posteriorization to germ layer differentiation in geometrically constrained human pluripotent cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.13.584912. [PMID: 38559061 PMCID: PMC10979992 DOI: 10.1101/2024.03.13.584912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The Wnt pathway is essential for inducing the primitive streak, the precursor of the mesendoderm, as well as setting anterior-posterior coordinates. How Wnt coordinates these diverse activities remains incompletely understood. Here, we show that in Wnt-treated human pluripotent cells, endogenous Nodal signaling is a crucial switch between posteriorizing and primitive streak-including activities. While treatment with Wnt posteriorizes cells in standard culture, in micropatterned colonies, higher levels of endogenously induced Nodal signaling combine with exogenous Wnt to drive endoderm differentiation. Inhibition of Nodal signaling restores dose-dependent posteriorization by Wnt. In the absence of Nodal inhibition, micropatterned colonies undergo spontaneous, elaborate morphogenesis concomitant with endoderm differentiation even in the absence of added extracellular matrix proteins like Matrigel. Our study shows how Wnt and Nodal combinatorially coordinate germ layer differentiation with AP patterning and establishes a system to study a natural self-organizing morphogenetic event in in vitro culture.
Collapse
Affiliation(s)
| | - Elena Camacho-Aguilar
- Department of Biosciences, Rice University, Houston, TX, USA 77005
- Present address: Department of Gene Regulation and Morphogenesis, Andalusian Center for Developmental Biology (CSIC-UPO-JA), Seville, Spain, 41013
| | - Aryeh Warmflash
- Department of Biosciences, Rice University, Houston, TX, USA 77005
- Department of Bioengineering, Rice University, Houston, TX, USA 77005
| |
Collapse
|
7
|
Jiang Q, Lan S, Tan F, Liang Y, Guo Z, Hou Y, Zhang H, Wu G, Liu Z. Adenosylhomocysteinase plays multiple roles in maintaining the identity and pluripotency of mouse embryonic stem cells†. Biol Reprod 2024; 110:450-464. [PMID: 38035769 DOI: 10.1093/biolre/ioad165] [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: 07/20/2023] [Revised: 10/25/2023] [Accepted: 11/30/2023] [Indexed: 12/02/2023] Open
Abstract
Adenosylhomocysteinase (AHCY), a key enzyme in the methionine cycle, is essential for the development of embryos and the maintenance of mouse embryonic stem cells (mESCs). However, the precise underlying mechanism of Ahcy in regulating pluripotency remains unclear. As the only enzyme that can hydrolyze S-adenosylhomocysteine in mammals, AHCY plays a critical role in the metabolic homeostasis, epigenetic remodeling, and transcriptional regulation. Here, we identified Ahcy as a direct target of OCT4 and unveiled that AHCY regulates the self-renewal and differentiation potency of mESCs through multiple mechanisms. Our study demonstrated that AHCY is required for the metabolic homeostasis of mESCs. We revealed the dual role of Ahcy in both transcriptional activation and inhibition, which is accomplished via the maintenance of H3K4me3 and H3K27me3, respectively. We found that Ahcy is required for H3K4me3-dependent transcriptional activation in mESCs. We also demonstrated that AHCY interacts with polycomb repressive complex 2 (PRC2), thereby maintaining the pluripotency of mESCs by sustaining the H3K27me3-regulated transcriptional repression of related genes. These results reveal a previously unrecognized OCT4-AHCY-PRC2 axis in the regulation of mESCs' pluripotency and provide insights into the interplay between transcriptional factors, cellular metabolism, chromatin dynamics and pluripotency regulation.
Collapse
Affiliation(s)
- Qi Jiang
- College of Life Science, Northeast Agricultural University, Harbin, China
- Basic Research Department, Guangzhou National Laboratory, Guangzhou, China
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Shubing Lan
- Basic Research Department, Guangzhou National Laboratory, Guangzhou, China
| | - Fancheng Tan
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, China
| | - Yiping Liang
- Basic Research Department, Guangzhou National Laboratory, Guangzhou, China
| | - Zhencheng Guo
- Basic Research Department, Guangzhou National Laboratory, Guangzhou, China
| | - Yanlin Hou
- Basic Research Department, Guangzhou National Laboratory, Guangzhou, China
| | - Hui Zhang
- Basic Research Department, Guangzhou National Laboratory, Guangzhou, China
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Guangming Wu
- Basic Research Department, Guangzhou National Laboratory, Guangzhou, China
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhonghua Liu
- College of Life Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| |
Collapse
|
8
|
Xu T, Su P, Wu L, Li D, Qin W, Li Q, Zhou J, Miao YL. OCT4 regulates WNT/β-catenin signaling and prevents mesoendoderm differentiation by repressing EOMES in porcine pluripotent stem cells. J Cell Physiol 2023; 238:2855-2866. [PMID: 37942811 DOI: 10.1002/jcp.31135] [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: 05/01/2023] [Revised: 08/29/2023] [Accepted: 09/21/2023] [Indexed: 11/10/2023]
Abstract
The regulatory network between signaling pathways and transcription factors (TFs) is crucial for the maintenance of pluripotent stem cells. However, little is known about how the key TF OCT4 coordinates signaling pathways to regulate self-renewal and lineage differentiation of porcine pluripotent stem cells (pPSCs). Here, we explored the function of OCT4 in pPSCs by transcriptome and chromatin accessibility analysis. The TFs motif enrichment analysis revealed that, following OCT4 knockdown, the regions of increased chromatin accessibility were enriched with EOMES, GATA6, and FOXA1, indicating that pPSCs differentiated toward the mesoendoderm (ME) lineage. Besides, pPSCs rapidly differentiated into ME when the WNT/β-catenin inhibitor XAV939 was removed. However, the ME differentiation of pPSCs caused by OCT4 knockdown did not rely on the activation of WNT/β-catenin signaling because the target gene of WNT/β-catenin signaling, AXIN2 was not upregulated after OCT4 knockdown, despite significant upregulation of WLS and some WNT ligands. Importantly, OCT4 is directly bound to the promoter and enhancers of EOMES and repressed its transcription. Overexpression of EOMES was sufficient to induce ME differentiation in the presence of XAV939. These results demonstrate that OCT4 can regulate WNT/β-catenin signaling and prevent ME differentiation of pPSCs by repressing EOMES transcription.
Collapse
Affiliation(s)
- Tian Xu
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei, China
| | - Peng Su
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei, China
| | - Linhui Wu
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei, China
| | - Delong Li
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei, China
| | - Wei Qin
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei, China
| | - Qiao Li
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei, China
| | - Jilong Zhou
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei, China
- Frontiers Science Center for Animal Breeding and Sustainable Production (Huazhong Agricultural University), Ministry of Education, Wuhan, China
| | - Yi-Liang Miao
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei, China
- Frontiers Science Center for Animal Breeding and Sustainable Production (Huazhong Agricultural University), Ministry of Education, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| |
Collapse
|
9
|
Li B, Jin X, Chan HM. Effects of low doses of methylmercury (MeHg) exposure on definitive endoderm cell differentiation in human embryonic stem cells. Arch Toxicol 2023; 97:2625-2641. [PMID: 37612375 PMCID: PMC10475006 DOI: 10.1007/s00204-023-03580-7] [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: 07/13/2023] [Accepted: 08/03/2023] [Indexed: 08/25/2023]
Abstract
Fetal development is one of the most sensitive windows to methylmercury (MeHg) toxicity. Laboratory and epidemiological studies have shown a dose-response relationship between fetal MeHg exposure and neuro performance in different life stages from infants to adults. In addition, MeHg exposure has been reported to be associated with disorders in endoderm-derived organs, such as morphological changes in liver cells and pancreatic cell dysfunctions. However, the mechanisms of the effects of MeHg on non-neuronal organs or systems, especially during the early development of endoderm-derived organs, remain unclear. Here we determined the effects of low concentrations of MeHg exposure during the differentiation of definitive endoderm (DE) cells from human embryonic stem cells (hESCs). hESCs were exposed to MeHg (0, 10, 100, and 200 nM) that covers the range of Hg concentrations typically found in human maternal blood during DE cell induction. Transcriptomic analysis showed that sub-lethal doses of MeHg exposure could alter global gene expression patterns during hESC to DE cell differentiation, leading to increased expression of endodermal genes/proteins and the over-promotion of endodermal fate, mainly through disrupting calcium homeostasis and generating ROS. Bioinformatic analysis results suggested that MeHg exerts its developmental toxicity mainly by disrupting ribosome biogenesis during early cell lineage differentiation. This disruption could lead to aberrant growth or dysfunctions of the developing endoderm-derived organs, and it may be the underlying mechanism for the observed congenital diseases later in life. Based on the results, we proposed an adverse outcome pathway for the effects of MeHg exposure during human embryonic stem cells to definitive endoderm differentiation.
Collapse
Affiliation(s)
- Bai Li
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, ON, K1N 6N5, Canada
| | - Xiaolei Jin
- Regulatory Toxicology Research Division, Bureau of Chemical Safety, Food Directorate, HPFB, Health Canada, 251 Sir Frederick Banting Driveway, Ottawa, ON, K1A 0K9, Canada.
| | - Hing Man Chan
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, ON, K1N 6N5, Canada.
| |
Collapse
|
10
|
Ayad NM, Lakins JN, Ghagre A, Ehrlicher AJ, Weaver VM. Tissue tension permits β-catenin phosphorylation to drive mesoderm specification in human embryonic stem cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.14.549074. [PMID: 37503095 PMCID: PMC10370032 DOI: 10.1101/2023.07.14.549074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
The role of morphogenetic forces in cell fate specification is an area of intense interest. Our prior studies suggested that the development of high cell-cell tension in human embryonic stem cells (hESC) colonies permits the Src-mediated phosphorylation of junctional β-catenin that accelerates its release to potentiate Wnt-dependent signaling critical for initiating mesoderm specification. Using an ectopically expressed nonphosphorylatable mutant of β-catenin (Y654F), we now provide direct evidence that impeding tension-dependent Src-mediated β-catenin phosphorylation impedes the expression of Brachyury (T) and the epithelial-to-mesenchymal transition (EMT) necessary for mesoderm specification. Addition of exogenous Wnt3a or inhibiting GSK3β activity rescued mesoderm expression, emphasizing the importance of force dependent Wnt signaling in regulating mechanomorphogenesis. Our work provides a framework for understanding tension-dependent β-catenin/Wnt signaling in the self-organization of tissues during developmental processes including gastrulation.
Collapse
Affiliation(s)
- Nadia M.E. Ayad
- Graduate Program in Bioengineering, University of California, San Francisco and University of California Berkeley, San Francisco, CA 94143, USA; Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Johnathon N. Lakins
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Ajinkya Ghagre
- Department of Bioengineering, McGill University, Montreal, QC H3A 0E9, Canada
| | - Allen J. Ehrlicher
- Department of Bioengineering, Department of Anatomy and Cell Biology, Department of Biomedical Engineering, Department of Mechanical Engineering, Centre for Structural Biology, Rosalind and Morris Goodman Cancer Institute, McGill University, Montreal, QC H3A 1A3, Canada
| | - Valerie M. Weaver
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA; UCSF Comprehensive Cancer Center, Helen Diller Family Cancer Research Center, University of California, San Francisco, San Francisco, CA 94143, USA; Department of Bioengineering and Therapeutic Sciences, Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143, USA
| |
Collapse
|
11
|
Zhang M, Reis AH, Simunovic M. Human embryoids: A new strategy of recreating the first steps of embryonic development in vitro. Semin Cell Dev Biol 2023; 141:14-22. [PMID: 35871155 DOI: 10.1016/j.semcdb.2022.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/05/2022] [Accepted: 07/04/2022] [Indexed: 01/24/2023]
Abstract
Molecular mechanisms surrounding early human embryonic events such as blastocyst formation, implantation, and the specification of the body axes are some of the most attractive research questions of developmental biology today. A knowledge on the detailed signaling landscape underlying these critical events in the human could impact the way we treat early pregnancy disorders and infertility, and considerably advance our abilities to make precise human tissues in a lab. However, owing to ethical, technical, and policy restrictions, research on early human embryo development historically stalled behind animal models. The rapid progress in 3D culture of human embryonic stem cells over the past years created an opportunity to overcome this critical challenge. We review recently developed strategies of making 3D models of the human embryo built from embryonic stem cells, which we refer to as embryoids. We focus on models aimed at reconstituting the 3D epithelial characteristics of the early human embryo, namely the intra/extraembryonic signaling crosstalk, tissue polarity, and embryonic cavities. We identify distinct classes of embryoids based on whether they explicitly include extraembryonic tissues and we argue for the merit of compromising on certain aspects of embryo mimicry in balancing the experimental feasibility with ethical considerations. Human embryoids open gates toward a new field of synthetic human embryology, allowing to study the long inaccessible stages of early human development at unprecedented detail.
Collapse
Affiliation(s)
- Miaoci Zhang
- Department of Chemical Engineering, Fu Foundation School of Engineering and Applied Sciences, Columbia University, New York 10027, USA; Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York 10032, USA
| | - Alice H Reis
- Department of Chemical Engineering, Fu Foundation School of Engineering and Applied Sciences, Columbia University, New York 10027, USA; Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York 10032, USA
| | - Mijo Simunovic
- Department of Chemical Engineering, Fu Foundation School of Engineering and Applied Sciences, Columbia University, New York 10027, USA; Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York 10032, USA; Department of Genetics and Development, Columbia Irving Medical Center, New York 10032, USA.
| |
Collapse
|
12
|
Metabolism-based cardiomyocytes production for regenerative therapy. J Mol Cell Cardiol 2023; 176:11-20. [PMID: 36681267 DOI: 10.1016/j.yjmcc.2023.01.007] [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: 09/29/2022] [Revised: 12/17/2022] [Accepted: 01/14/2023] [Indexed: 01/19/2023]
Abstract
Human pluripotent stem cells (hPSCs) are currently used in clinical applications such as cardiac regenerative therapy, studying disease models, and drug screening for heart failure. Transplantation of hPSC-derived cardiomyocytes (hPSC-CMs) can be used as an alternative therapy for heart transplantation. In contrast to differentiated somatic cells, hPSCs possess unique metabolic programs to maintain pluripotency, and understanding their metabolic features can contribute to the development of technologies that can be useful for their clinical applications. The production of hPSC-CMs requires stepwise specification during embryonic development and metabolic regulation is crucial for proper embryonic development. These metabolic features have been applied to hPSC-CM production methods, such as mesoderm induction, specifications for cardiac progenitors, and their maturation. This review describes the metabolic programs in hPSCs and the metabolic regulation in hPSC-CM production for cardiac regenerative therapy.
Collapse
|
13
|
Virtual cells in a virtual microenvironment recapitulate early development-like patterns in human pluripotent stem cell colonies. Stem Cell Reports 2022; 18:377-393. [PMID: 36332630 PMCID: PMC9859929 DOI: 10.1016/j.stemcr.2022.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 10/04/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
The mechanism by which morphogenetic signals engage the regulatory networks responsible for early embryonic tissue patterning is incompletely understood. Here, we developed a minimal gene regulatory network (GRN) model of human pluripotent stem cell (hPSC) lineage commitment and embedded it into "cellular" agents that respond to a dynamic morphogenetic signaling microenvironment. Simulations demonstrated that GRN wiring had significant non-intuitive effects on tissue pattern order, composition, and dynamics. Experimental perturbation of GRN connectivities supported model predictions and demonstrated the role of OCT4 as a master regulator of peri-gastrulation fates. Our so-called GARMEN strategy provides a multiscale computational platform to understand how single-cell-based regulatory interactions scale to tissue domains. This foundation provides new opportunities to simulate the impact of network motifs on normal and aberrant tissue development.
Collapse
|
14
|
Yoney A, Bai L, Brivanlou AH, Siggia ED. Mechanisms underlying WNT-mediated priming of human embryonic stem cells. Development 2022; 149:dev200335. [PMID: 35815787 PMCID: PMC9357376 DOI: 10.1242/dev.200335] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 06/23/2022] [Indexed: 11/10/2023]
Abstract
Embryogenesis is guided by a limited set of signaling pathways dynamically expressed in different places. How a context-dependent signaling response is generated has been a central question of developmental biology, which can now be addressed with in vitro models of human embryos that are derived from embryonic stem cells (hESCs). Our previous work demonstrated that during early stages of hESC differentiation, cells chronicle signaling hierarchy. Only cells that have been exposed (primed) by WNT signaling can respond to subsequent activin exposure and differentiate to mesendodermal (ME) fates. Here, we show that WNT priming does not alter SMAD2 binding nor its chromatin opening but, instead, acts by inducing the expression of the SMAD2 co-factor EOMES. Expression of EOMES is sufficient to replace WNT upstream of activin-mediated ME differentiation, thus unveiling the mechanistic basis for priming and cellular memory in early development.
Collapse
Affiliation(s)
- Anna Yoney
- Center for Studies in Physics and Biology, The Rockefeller University, New York, NY 10065, USA
- Laboratory of Synthetic Embryology, The Rockefeller University, New York, NY 10065, USA
| | - Lu Bai
- Department of Biochemistry and Molecular Biology, Department of Physics, Center for Eukaryotic Gene Regulation, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ali H. Brivanlou
- Laboratory of Synthetic Embryology, The Rockefeller University, New York, NY 10065, USA
| | - Eric D. Siggia
- Center for Studies in Physics and Biology, The Rockefeller University, New York, NY 10065, USA
| |
Collapse
|
15
|
Yadav S, Garrido A, Hernández MC, Oliveros JC, Pérez-García V, Fraga MF, Carrera AC. PI3Kβ-regulated β-catenin mediates EZH2 removal from promoters controlling primed human ESC stemness and primitive streak gene expression. Stem Cell Reports 2022; 17:2239-2255. [PMID: 36179694 PMCID: PMC9561645 DOI: 10.1016/j.stemcr.2022.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 11/21/2022] Open
Abstract
The mechanism governing the transition of human embryonic stem cells (hESCs) toward differentiated cells is only partially understood. To explore this transition, the activity and expression of the ubiquitous phosphatidylinositol 3-kinase (PI3Kα and PI3Kβ) were modulated in primed hESCs. The study reports a pathway that dismantles the restraint imposed by the EZH2 polycomb repressor on an essential stemness gene, NODAL, and on transcription factors required to trigger primitive streak formation. The primitive streak is the site where gastrulation begins to give rise to the three embryonic cell layers from which all human tissues derive. The pathway involves a PI3Kβ non-catalytic action that controls nuclear/active RAC1 levels, activation of JNK (Jun N-terminal kinase) and nuclear β-catenin accumulation. β-Catenin deposition at promoters triggers release of the EZH2 repressor, permitting stemness maintenance (through control of NODAL) and correct differentiation by allowing primitive streak master gene expression. PI3Kβ epigenetic control of EZH2/β-catenin might be modulated to direct stem cell differentiation. PI3Kβ directs epigenetic control of stemness and primitive streak (PS) essential genes PI3Kβ directs RAC1/JNK/β-catenin activation and induces EZH2 promoter displacement β-Catenin/EZH2 control NODAL, a gene essential for stemness and the master PS genes PI3Kβ/PI3K activities cooperate at stemness; PI3Kβ directs PS gene expression
Collapse
Affiliation(s)
- Sudhanshu Yadav
- Department of Immunology and Oncology, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Antonio Garrido
- Department of Immunology and Oncology, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - M Carmen Hernández
- Department of Immunology and Oncology, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Juan C Oliveros
- Department of Systems Biology, Bioinformatics, Centro Nacional de Biotecnología/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Vicente Pérez-García
- Centro de Investigación Príncipe Felipe, Eduardo Primo Yúfera, 46013 Valencia, Spain
| | - Mario F Fraga
- Nanomaterials and Nanotechnology Research Center/CSIC, Health Research Institute of Asturias (ISPA), Institute of Oncology of Asturias (IUOPA), Research Center for Rare Diseases (CIBERER), 33011 Oviedo, Asturias, Spain
| | - Ana C Carrera
- Department of Immunology and Oncology, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
| |
Collapse
|
16
|
Mukherjee S, Luedeke DM, McCoy L, Iwafuchi M, Zorn AM. SOX transcription factors direct TCF-independent WNT/β-catenin responsive transcription to govern cell fate in human pluripotent stem cells. Cell Rep 2022; 40:111247. [PMID: 36001974 PMCID: PMC10123531 DOI: 10.1016/j.celrep.2022.111247] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 05/06/2022] [Accepted: 08/01/2022] [Indexed: 02/01/2023] Open
Abstract
WNT/β-catenin signaling controls gene expression across biological contexts from development and stem cell homeostasis to diseases including cancer. How β-catenin is recruited to distinct enhancers to activate context-specific transcription is unclear, given that most WNT/ß-catenin-responsive transcription is thought to be mediated by TCF/LEF transcription factors (TFs). With time-resolved multi-omic analyses, we show that SOX TFs can direct lineage-specific WNT-responsive transcription during the differentiation of human pluripotent stem cells (hPSCs) into definitive endoderm and neuromesodermal progenitors. We demonstrate that SOX17 and SOX2 are required to recruit β-catenin to lineage-specific WNT-responsive enhancers, many of which are not occupied by TCFs. At TCF-independent enhancers, SOX TFs establish a permissive chromatin landscape and recruit a WNT-enhanceosome complex to activate SOX/ß-catenin-dependent transcription. Given that SOX TFs and the WNT pathway are critical for specification of most cell types, these results have broad mechanistic implications for the specificity of WNT responses across developmental and disease contexts.
Collapse
Affiliation(s)
- Shreyasi Mukherjee
- Center for Stem Cell and Organoid Medicine (CuSTOM), Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Molecular and Developmental Biology Graduate Program, University of Cincinnati, College of Medicine, Cincinnati, OH, USA.
| | - David M Luedeke
- Center for Stem Cell and Organoid Medicine (CuSTOM), Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Leslie McCoy
- Center for Stem Cell and Organoid Medicine (CuSTOM), Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Makiko Iwafuchi
- Center for Stem Cell and Organoid Medicine (CuSTOM), Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Aaron M Zorn
- Center for Stem Cell and Organoid Medicine (CuSTOM), Division of Developmental Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; University of Cincinnati Department of Pediatrics, College of Medicine, Cincinnati, OH, USA.
| |
Collapse
|
17
|
Lan X, Ding S, Zhang T, Yi Y, Li C, Jin W, Chen J, Liang K, Wang H, Jiang W. PCGF6 controls neuroectoderm specification of human pluripotent stem cells by activating SOX2 expression. Nat Commun 2022; 13:4601. [PMID: 35933409 PMCID: PMC9357003 DOI: 10.1038/s41467-022-32295-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 07/25/2022] [Indexed: 11/28/2022] Open
Abstract
Polycomb group (PcG) proteins are known to repress developmental genes during embryonic development and tissue homeostasis. Here, we report that PCGF6 controls neuroectoderm specification of human pluripotent stem cells (PSCs) by activating SOX2 gene. Human PSCs with PCGF6 depletion display impaired neuroectoderm differentiation coupled with increased mesendoderm outcomes. Transcriptome analysis reveals that de-repression of the WNT/β-catenin signaling pathway is responsible for the differentiation of PSC toward the mesendodermal lineage. Interestingly, PCGF6 and MYC directly interact and co-occupy a distal regulatory element of SOX2 to activate SOX2 expression, which likely accounts for the regulation in neuroectoderm differentiation. Supporting this notion, genomic deletion of the SOX2-regulatory element phenocopies the impaired neuroectoderm differentiation, while overexpressing SOX2 rescues the neuroectoderm phenotype caused by PCGF6-depletion. Together, our study reveals that PCGF6 can function as lineage switcher between mesendoderm and neuroectoderm in human PSCs by both suppression and activation mechanisms. Variant Polycomb complexes can have tissue-specific roles during development. Here they show that PCGF6 controls lineage-specification in human PSCs by promoting neuroectoderm differentiation and repressing mesendoderm differentiation via distinct downstream targets.
Collapse
Affiliation(s)
- Xianchun Lan
- Department of Biological Repositories, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, RNA Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Song Ding
- Department of Biological Repositories, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, RNA Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Tianzhe Zhang
- Department of Biological Repositories, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, RNA Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Ying Yi
- Department of Biological Repositories, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, RNA Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Conghui Li
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Wenwen Jin
- Department of Biological Repositories, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, RNA Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Jian Chen
- Chinese Institute for Brain Research (Beijing), Research Unit of Medical Neurobiology, Chinese Academy of Medical Sciences, 102206, Beijing, China
| | - Kaiwei Liang
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Hengbin Wang
- Department of Internal Medicine, Division of Hematology, Oncology, and Palliative Care, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Wei Jiang
- Department of Biological Repositories, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, RNA Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China. .,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China. .,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China.
| |
Collapse
|
18
|
Ducos B, Bensimon D, Scerbo P. Vertebrate Cell Differentiation, Evolution, and Diseases: The Vertebrate-Specific Developmental Potential Guardians VENTX/ NANOG and POU5/ OCT4 Enter the Stage. Cells 2022; 11:cells11152299. [PMID: 35892595 PMCID: PMC9331430 DOI: 10.3390/cells11152299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/09/2022] [Accepted: 07/13/2022] [Indexed: 01/02/2023] Open
Abstract
During vertebrate development, embryonic cells pass through a continuum of transitory pluripotent states that precede multi-lineage commitment and morphogenesis. Such states are referred to as “refractory/naïve” and “competent/formative” pluripotency. The molecular mechanisms maintaining refractory pluripotency or driving the transition to competent pluripotency, as well as the cues regulating multi-lineage commitment, are evolutionarily conserved. Vertebrate-specific “Developmental Potential Guardians” (vsDPGs; i.e., VENTX/NANOG, POU5/OCT4), together with MEK1 (MAP2K1), coordinate the pluripotency continuum, competence for multi-lineage commitment and morphogenesis in vivo. During neurulation, vsDPGs empower ectodermal cells of the neuro-epithelial border (NEB) with multipotency and ectomesenchyme potential through an “endogenous reprogramming” process, giving rise to the neural crest cells (NCCs). Furthermore, vsDPGs are expressed in undifferentiated-bipotent neuro-mesodermal progenitor cells (NMPs), which participate in posterior axis elongation and growth. Finally, vsDPGs are involved in carcinogenesis, whereby they confer selective advantage to cancer stem cells (CSCs) and therapeutic resistance. Intriguingly, the heterogenous distribution of vsDPGs in these cell types impact on cellular potential and features. Here, we summarize the findings about the role of vsDPGs during vertebrate development and their selective advantage in evolution. Our aim to present a holistic view regarding vsDPGs as facilitators of both cell plasticity/adaptability and morphological innovation/variation. Moreover, vsDPGs may also be at the heart of carcinogenesis by allowing malignant cells to escape from physiological constraints and surveillance mechanisms.
Collapse
Affiliation(s)
- Bertrand Ducos
- LPENS, PSL, CNRS, 24 rue Lhomond, 75005 Paris, France
- IBENS, PSL, CNRS, 46 rue d’Ulm, 75005 Paris, France
- High Throughput qPCR Core Facility, ENS, PSL, 46 rue d’Ulm, 75005 Paris, France
- Correspondence: (B.D.); (D.B.); (P.S.)
| | - David Bensimon
- LPENS, PSL, CNRS, 24 rue Lhomond, 75005 Paris, France
- IBENS, PSL, CNRS, 46 rue d’Ulm, 75005 Paris, France
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA 90094, USA
- Correspondence: (B.D.); (D.B.); (P.S.)
| | - Pierluigi Scerbo
- LPENS, PSL, CNRS, 24 rue Lhomond, 75005 Paris, France
- IBENS, PSL, CNRS, 46 rue d’Ulm, 75005 Paris, France
- Correspondence: (B.D.); (D.B.); (P.S.)
| |
Collapse
|
19
|
Plouhinec JL, Simon G, Vieira M, Collignon J, Sorre B. Dissecting signaling hierarchies in the patterning of the mouse primitive streak using micropatterned EpiLC colonies. Stem Cell Reports 2022; 17:1757-1771. [PMID: 35714597 PMCID: PMC9287665 DOI: 10.1016/j.stemcr.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 11/30/2022] Open
Abstract
Embryo studies have established that the patterning of the mouse gastrula depends on a regulatory network in which the WNT, BMP, and NODAL signaling pathways cooperate, but aspects of their respective contributions remain unclear. Studying their impact on the spatial organization and developmental trajectories of micropatterned epiblast-like cell (EpiLC) colonies, we show that NODAL is required prior to BMP action to establish the mesoderm and endoderm lineages. The presence of BMP then forces NODAL and WNT to support the formation of posterior primitive streak (PS) derivatives, while its absence allows them to promote that of anterior PS derivatives. Also, a Nodal mutation elicits more severe patterning defects in vitro than in the embryo, suggesting that ligands of extra-embryonic origin can rescue them. These results support the implication of a combinatorial process in PS patterning and illustrate how the study of micropatterned EpiLC colonies can complement that of embryos. BMP or WNT cannot rescue the impact a Nodal KO has on primitive streak formation BMP exposure results in Nodal promoting posterior rather than anterior PS formation The maintenance of posterior mesodermal identities is dependent on Nodal expression Low Nodal expression does not prevent the emergence of anterior PS derivatives
Collapse
Affiliation(s)
- Jean-Louis Plouhinec
- Université Paris Cité, CNRS, Laboratoire Matière et Systèmes Complexes, 75013 Paris, France
| | - Gaël Simon
- Université Paris Cité, CNRS, Laboratoire Matière et Systèmes Complexes, 75013 Paris, France; Université Paris Cité, CNRS, Institut Jacques Monod, 75013 Paris, France
| | - Mathieu Vieira
- Université Paris Cité, CNRS, Institut Jacques Monod, 75013 Paris, France
| | - Jérôme Collignon
- Université Paris Cité, CNRS, Institut Jacques Monod, 75013 Paris, France.
| | - Benoit Sorre
- Université Paris Cité, CNRS, Laboratoire Matière et Systèmes Complexes, 75013 Paris, France; Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Laboratoire Physico Chimie Curie, 75005 Paris, France.
| |
Collapse
|
20
|
Zhang X, Zhang X, Liu K, Li W, Wang J, Liu P, Ma W. HIVEP3 cooperates with ferroptosis gene signatures to confer adverse prognosis in acute myeloid leukemia. Cancer Med 2022; 11:5050-5065. [PMID: 35535739 PMCID: PMC9761064 DOI: 10.1002/cam4.4806] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 03/23/2022] [Accepted: 04/26/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND The human immunodeficiency virus type I enhancer binding protein (HIVEP) family, which contains zinc finger and acid-rich (ZAS) domains, has been demonstrated to be implicated in vital biological processes, such as cell survival, tumor necrosis factor (TNF) signaling, and tumor formation. However, its expression patterns, prognostic relevance, and functional implications in acute myeloid leukemia (AML) remain elusive. METHODS We inspected HIVEP mRNA expression levels in datasets from The Cancer Genome Atlas (TCGA) and GSE24006. Survival analyses were orchestrated using the web-based bioinformatics platforms and R studio in two AML cohorts. Prognostic value and capacity were assessed by Cox regression analyses. Association of HIVEP3 expression levels with clinical characteristics were analyzed with R and UALCAN. Subsequentially, functional enrichment analyses were operated to interpret HIVEP3 co-expressed gene clusters. A prognostic gene signature was created by the least absolute shrinkage and selection operator (LASSO) regression algorithm. Moreover, bone marrow aspirate smears of AML patients were stained for HIVEP3 by immunohistochemistry (IHC). HIVEP3 expression was examined by qRT-PCR in leukemia cell lines treated with ferroptosis compounds in vitro. RESULTS Augmented transcriptional levels of HIVEP2 and 3 were noted in AML patients (p<0.001). HIVEP3 not only could confer adverse prognosis independently in AML patients, but also was associated with AML subtypes, age, cytogenetic risk, and disease-related molecules. Co-expressed gene clusters of HIVEP3 were enriched in functional pathways related to AML leukemogenesis, such as ribosome, metabolism, and calcium signaling. Combined with multiple tumorigenesis signaling pathways, we proposed an integrated LASSO model with HIVEP3 and ferroptosis regulators AIFM2 and LPCAT3, to predict the outcome for AML patients. Furthernore, altered HIVEP3 expression at the mRNA or protein level was confirmed in sorted leukemia cells and blast cells in bone marrow tissues. In vitro experiments authenticated the involvement of HIVEP3 in ferroptosis signaling pathways. CONCLUSIONS Our findings suggest that HIVEP3 is a de novo independent prognostic indicator, and the crosstalk between HIVEP3 and ferroptosis signaling pathways may inspire a specific perspective on the oncological network of AML.
Collapse
Affiliation(s)
- Xiaoning Zhang
- Department of Clinical Laboratory MedicineThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory MedicineJinanPR China
| | - Xiaoyu Zhang
- Department of NephroticThe Fifth People's Hospital of JinanJinanPR China
| | - Kuo Liu
- Department of Clinical Laboratory MedicineThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory MedicineJinanPR China
| | - Wenwen Li
- Department of Clinical Laboratory MedicineThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory MedicineJinanPR China
| | - Jiazheng Wang
- Department of Clinical Laboratory MedicineThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory MedicineJinanPR China
| | - Peng Liu
- Department of Clinical Laboratory MedicineThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory MedicineJinanPR China
| | - Wanshan Ma
- Department of Clinical Laboratory MedicineThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory MedicineJinanPR China
| |
Collapse
|
21
|
Sequential enhancer state remodelling defines human germline competence and specification. Nat Cell Biol 2022; 24:448-460. [PMID: 35411086 PMCID: PMC7612729 DOI: 10.1038/s41556-022-00878-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 02/28/2022] [Indexed: 12/26/2022]
|
22
|
Ardalan Khales S, Abbaszadegan MR, Hosseini SE, Forghanifard MM. Contribution of TWIST1-EVX1 Axis in Invasiveness of Esophageal Squamous Cell Carcinoma; a Functional Study. IRANIAN JOURNAL OF BIOTECHNOLOGY 2022; 20:e2733. [PMID: 36337061 PMCID: PMC9583822 DOI: 10.30498/ijb.2022.224786.2733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Epithelial-mesenchymal transition (EMT) is a biological process in embryonic development and cancer progression, and different gene families, such as HOX genes, are closely related to this process. OBJECTIVES Our aim in this study was to investigate the correlation between TWIST1 and EVX1 mRNA expression in ESCC patients and also examine the probable regulatory function of TWIST1 on EVX1 expression in human ESCC cell line. MATERIALS AND METHODS TWIST1 and EVX1 gene expression patterns were assessed in ESCC patients by relative comparative Real-time PCR then correlated with their clinical characteristics. In silico analysis of the EVX1 gene was conducted. KYSE-30 cells were transduced by a retroviral system to ectopically express TWIST1, followed by qRT-PCR to reveal the correlation between TWIST1 and EVX1 gene expression. RESULTS The expression of TWIST1 and EVX1 was correlated to each other significantly (p=0.005) in ESCC. Of 28 patients with under/normal expression of TWIST1, 22 samples (78.57%) had over/normal expression of EVX1. TWIST1 overexpression was correlated with advanced stages of the tumor (III, IV) (P = 0.019) and lymph node metastasis. However, EVX1 under expression was associated with lymph node metastasis (p = 0.027) and invasiveness of the disease (P = 0.037) in ESCC. Furthermore, retroviral transduction enforced significant overexpression of TWIST1 in GFP-hTWIST-1 approximately 9-fold compared to GFP control cells, causing a - 8.83- fold reduction in EVX1 mRNA expression significantly. CONCLUSIONS Our results indicated the repressive role of TWIST1 on EVX1 gene expression in ESCC. Therefore, our findings can help dissect the molecular mechanism of ESCC tumorigenesis and discover novel therapeutic targets for ESCC invasion and metastasis.
Collapse
Affiliation(s)
| | | | - Seyed Ebrahim Hosseini
- Department of Biology, Faculty of Sciences, Zand Institute of Higher Education, Shiraz, Iran
| | | |
Collapse
|
23
|
Jiang Y, Chen C, Randolph LN, Ye S, Zhang X, Bao X, Lian XL. Generation of pancreatic progenitors from human pluripotent stem cells by small molecules. Stem Cell Reports 2021; 16:2395-2409. [PMID: 34450037 PMCID: PMC8452541 DOI: 10.1016/j.stemcr.2021.07.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 12/20/2022] Open
Abstract
Human pluripotent stem cell (hPSC)-derived pancreatic progenitors (PPs) provide promising cell therapies for type 1 diabetes. Current PP differentiation requires a high amount of Activin A during the definitive endoderm (DE) stage, making it economically difficult for commercial ventures. Here we identify a dose-dependent role for Wnt signaling in controlling DE differentiation without Activin A. While high-level Wnt activation induces mesodermal formation, low-level Wnt activation by a small-molecule inhibitor of glycogen synthase kinase 3 is sufficient for DE differentiation, yielding SOX17+FOXA2+ DE cells. BMP inhibition further enhances this DE differentiation, generating over 87% DE cells. These DE cells could be further differentiated into PPs and functional β cells. RNA-sequencing analysis of PP differentiation from hPSCs revealed expected transcriptome dynamics and new gene regulators during our small-molecule PP differentiation protocol. Overall, we established a robust growth-factor-free protocol for generating DE and PP cells, facilitating scalable production of pancreatic cells for regenerative applications.
Collapse
Affiliation(s)
- Yuqian Jiang
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA; Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Chuanxin Chen
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA
| | - Lauren N Randolph
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA; Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Songtao Ye
- Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA
| | - Xin Zhang
- Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA
| | - Xiaoping Bao
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Xiaojun Lance Lian
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA; Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA; Department of Biology, Pennsylvania State University, University Park, PA 16802, USA.
| |
Collapse
|
24
|
Boyer A, Zhang X, Levasseur A, Abou Nader N, St-Jean G, Nagano MC, Boerboom D. Constitutive activation of CTNNB1 results in a loss of spermatogonial stem cell activity in mice. PLoS One 2021; 16:e0251911. [PMID: 34015032 PMCID: PMC8136708 DOI: 10.1371/journal.pone.0251911] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/05/2021] [Indexed: 01/15/2023] Open
Abstract
Spermatogenesis requires that a careful balance be maintained between the self-renewal of spermatogonial stem cells (SSCs) and their commitment to the developmental pathway through which they will differentiate into spermatozoa. Recently, a series of studies employing various in vivo and in vitro models have suggested a role of the wingless-related MMTV integration site gene family/beta-catenin (WNT/CTNNB1) pathway in determining the fate of SSCs. However, conflicting data have suggested that CTNNB1 signaling may either promote SSC self-renewal or differentiation. Here, we studied the effects of sustained CTNNB1 signaling in SSCs using the Ctnnb1tm1Mmt/+; Ddx4-CreTr/+ (ΔCtnnb1) mouse model, in which a stabilized form of CTNNB1 is expressed in all germ cells. ΔCtnnb1 mice were found to have reduced testis weights and partial germ cell loss by 4 months of age. Germ cell transplantation assays showed a 49% reduction in total functional SSC numbers in 8 month-old transgenic mice. In vitro, Thy1-positive undifferentiated spermatogonia from ΔCtnnb1 mice formed 57% fewer clusters, which was associated with decreased cell proliferation. A reduction in mRNA levels of genes associated with SSC maintenance (Bcl6b, Gfra1, Plzf) and increased levels for markers associated with progenitor and differentiating spermatogonia (Kit, Rarg, Sohlh1) were detected in these cluster cells. Furthermore, RNAseq performed on these clusters revealed a network of more than 900 genes regulated by CTNNB1, indicating that CTNNB1 is an important regulator of spermatogonial fate. Together, our data support the notion that CTNNB1 signaling promotes the transition of SSCs to undifferentiated progenitor spermatogonia at the expense of their self-renewal.
Collapse
Affiliation(s)
- Alexandre Boyer
- Centre de Recherche en Reproduction et Fertilité, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Xiangfan Zhang
- Department of Obstetrics and Gynecology, Division of Reproductive Biology, Faculty of Medicine, McGill University, Montréal, Québec, Canada
| | - Adrien Levasseur
- Centre de Recherche en Reproduction et Fertilité, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Nour Abou Nader
- Centre de Recherche en Reproduction et Fertilité, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Guillaume St-Jean
- Centre de Recherche en Reproduction et Fertilité, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Makoto C. Nagano
- Department of Obstetrics and Gynecology, Division of Reproductive Biology, Faculty of Medicine, McGill University, Montréal, Québec, Canada
| | - Derek Boerboom
- Centre de Recherche en Reproduction et Fertilité, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
- * E-mail:
| |
Collapse
|
25
|
Ziegler N, Bader E, Epanchintsev A, Margerie D, Kannt A, Schmoll D. AMPKβ1 and AMPKβ2 define an isoform-specific gene signature in human pluripotent stem cells, differentially mediating cardiac lineage specification. J Biol Chem 2021; 295:17659-17671. [PMID: 33454005 DOI: 10.1074/jbc.ra120.013990] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 10/07/2020] [Indexed: 12/18/2022] Open
Abstract
AMP-activated protein kinase (AMPK) is a key regulator of energy metabolism that phosphorylates a wide range of proteins to maintain cellular homeostasis. AMPK consists of three subunits: α, β, and γ. AMPKα and β are encoded by two genes, the γ subunit by three genes, all of which are expressed in a tissue-specific manner. It is not fully understood, whether individual isoforms have different functions. Using RNA-Seq technology, we provide evidence that the loss of AMPKβ1 and AMPKβ2 lead to different gene expression profiles in human induced pluripotent stem cells (hiPSCs), indicating isoform-specific function. The knockout of AMPKβ2 was associated with a higher number of differentially regulated genes than the deletion of AMPKβ1, suggesting that AMPKβ2 has a more comprehensive impact on the transcriptome. Bioinformatics analysis identified cell differentiation as one biological function being specifically associated with AMPKβ2. Correspondingly, the two isoforms differentially affected lineage decision toward a cardiac cell fate. Although the lack of PRKAB1 impacted differentiation into cardiomyocytes only at late stages of cardiac maturation, the availability of PRKAB2 was indispensable for mesoderm specification as shown by gene expression analysis and histochemical staining for cardiac lineage markers such as cTnT, GATA4, and NKX2.5. Ultimately, the lack of AMPKβ1 impairs, whereas deficiency of AMPKβ2 abrogates differentiation into cardiomyocytes. Finally, we demonstrate that AMPK affects cellular physiology by engaging in the regulation of hiPSC transcription in an isoform-specific manner, providing the basis for further investigations elucidating the role of dedicated AMPK subunits in the modulation of gene expression.
Collapse
Affiliation(s)
- Nicole Ziegler
- Research & Development, Sanofi-Aventis Deutschland GmbH, Frankfurt/Main, Germany.
| | - Erik Bader
- Integrated Drug Discovery, Sanofi-Aventis Deutschland GmbH, Frankfurt/Main, Germany
| | - Alexey Epanchintsev
- Research & Development, Sanofi-Aventis Deutschland GmbH, Frankfurt/Main, Germany
| | - Daniel Margerie
- Research & Development, Digital Data Sciences, Sanofi-Aventis Deutschland GmbH, Frankfurt/Main, Germany
| | - Aimo Kannt
- Research & Development, Sanofi-Aventis Deutschland GmbH, Frankfurt/Main, Germany
| | - Dieter Schmoll
- Research & Development, Sanofi-Aventis Deutschland GmbH, Frankfurt/Main, Germany.
| |
Collapse
|
26
|
Xin C, Zhu C, Jin Y, Li H. Discovering the role of VEGF signaling pathway in mesendodermal induction of human embryonic stem cells. Biochem Biophys Res Commun 2021; 553:58-64. [PMID: 33756346 DOI: 10.1016/j.bbrc.2021.03.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/06/2021] [Indexed: 11/28/2022]
Abstract
Human embryonic stem cells (hESCs) have the unique feature of unlimited self-renewal and differentiation into derivatives of all three germ layers in human body, providing a powerful in vitro model for studying cell differentiation. FGF2, BMP4 and TGF-β signaling have been shown to play crucial roles in mesendodermal differentiation of hESCs. However, their underlying molecular mechanisms and other signaling pathways potentially involved in mesendodermal differentiation of hESCs remain to be further investigated. In this study, we uncover that VEGF signaling pathway plays a critical role in the mesendodermal induction of hESCs. Treating hESCs with Lenvatinib, a pan-inhibitor of VEGF receptors (VEGFRs), impedes their mesendodermal induction. Conversely, overexpression of VEGFA165, a major human VEGF isoform, promotes the mesendodermal differentiation. Similar to the VEGFR inhibitor, MEK inhibitor PD0325901 hinders mesendodermal induction of hESCs. In contrast, overexpression of ERK2GOF, an intrinsically active ERK2 mutant, markedly reduces the inhibitory effect of the VEGFR inhibitor. Thus, the MEK-ERK cascade plays an important role for the function of VEGF signaling pathway in the mesendodermal induction of hESCs. All together, this study identifies the critical role of VEGF signaling pathway as well as potential crosstalk of VEGF signaling pathway with other known signaling pathways in mesendodermal differentiation of hESCs.
Collapse
Affiliation(s)
- Chenge Xin
- Department of Histoembryology, Genetics and Developmental Biology, Shanghai Key Laboratory of Reproductive Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chaonan Zhu
- Department of Histoembryology, Genetics and Developmental Biology, Shanghai Key Laboratory of Reproductive Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Jin
- Department of Histoembryology, Genetics and Developmental Biology, Shanghai Key Laboratory of Reproductive Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Basic Clinical Research Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, CAS Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Hui Li
- Department of Histoembryology, Genetics and Developmental Biology, Shanghai Key Laboratory of Reproductive Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Basic Clinical Research Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| |
Collapse
|
27
|
Dziedzicka D, Tewary M, Keller A, Tilleman L, Prochazka L, Östblom J, Couvreu De Deckersberg E, Markouli C, Franck S, Van Nieuwerburgh F, Spits C, Zandstra PW, Sermon K, Geens M. Endogenous suppression of WNT signalling in human embryonic stem cells leads to low differentiation propensity towards definitive endoderm. Sci Rep 2021; 11:6137. [PMID: 33731744 PMCID: PMC7969605 DOI: 10.1038/s41598-021-85447-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/23/2021] [Indexed: 02/06/2023] Open
Abstract
Low differentiation propensity towards a targeted lineage can significantly hamper the utility of individual human pluripotent stem cell (hPSC) lines in biomedical applications. Here, we use monolayer and micropatterned cell cultures, as well as transcriptomic profiling, to investigate how variability in signalling pathway activity between human embryonic stem cell lines affects their differentiation efficiency towards definitive endoderm (DE). We show that endogenous suppression of WNT signalling in hPSCs at the onset of differentiation prevents the switch from self-renewal to DE specification. Gene expression profiling reveals that this inefficient switch is reflected in NANOG expression dynamics. Importantly, we demonstrate that higher WNT stimulation or inhibition of the PI3K/AKT signalling can overcome the DE commitment blockage. Our findings highlight that redirection of the activity of Activin/NODAL pathway by WNT signalling towards mediating DE fate specification is a vulnerable spot, as disruption of this process can result in poor hPSC specification towards DE.
Collapse
Affiliation(s)
- Dominika Dziedzicka
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Mukul Tewary
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada ,grid.13097.3c0000 0001 2322 6764Centre for Stem Cells and Regenerative Medicine, King’s College London, Guy’s Hospital, London, SE1 9RT UK
| | - Alexander Keller
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Laurentijn Tilleman
- grid.5342.00000 0001 2069 7798Laboratory of Pharmaceutical Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Laura Prochazka
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada
| | - Joel Östblom
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada
| | - Edouard Couvreu De Deckersberg
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Christina Markouli
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Silvie Franck
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Filip Van Nieuwerburgh
- grid.5342.00000 0001 2069 7798Laboratory of Pharmaceutical Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Claudia Spits
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Peter W. Zandstra
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada ,grid.17091.3e0000 0001 2288 9830Michael Smith Laboratories, University of British Columbia, Vancouver, BC V6T 1Z4 Canada ,grid.17091.3e0000 0001 2288 9830School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3 Canada
| | - Karen Sermon
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Mieke Geens
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| |
Collapse
|
28
|
Human ES Cell Culture Conditions Fail to Preserve the Mouse Epiblast State. Stem Cells Int 2021; 2021:8818356. [PMID: 33828592 PMCID: PMC8004371 DOI: 10.1155/2021/8818356] [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: 07/17/2020] [Revised: 11/11/2020] [Accepted: 01/24/2021] [Indexed: 11/17/2022] Open
Abstract
Mouse embryonic stem cells (mESCs) and mouse epiblast stem cells (mEpiSCs) are the pluripotent stem cells (PSCs), derived from the inner cell mass (ICM) of preimplantation embryos at embryonic day 3.5 (E3.5) and postimplantation embryos at E5.5-E7.5, respectively. Depending on their environment, PSCs can exist in the so-called naïve (ESCs) or primed (EpiSCs) states. Exposure to EpiSC or human ESC (hESC) culture condition can convert mESCs towards an EpiSC-like state. Here, we show that the undifferentiated epiblast state is however not stabilized in a sustained manner when exposing mESCs to hESC or EpiSC culture condition. Rather, prolonged exposure to EpiSC condition promotes a transition to a primitive streak- (PS-) like state via an unbiased epiblast-like intermediate. We show that the Brachyury-positive PS-like state is likely promoted by endogenous WNT signaling, highlighting a possible species difference between mouse epiblast-like stem cells and human Embryonic Stem Cells.
Collapse
|
29
|
Yang R, Liu S, Liang X, Yin N, Jiang L, Zhang Y, Faiola F. TBBPA, TBBPS, and TCBPA disrupt hESC hepatic differentiation and promote the proliferation of differentiated cells partly via up-regulation of the FGF10 signaling pathway. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123341. [PMID: 32653787 DOI: 10.1016/j.jhazmat.2020.123341] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/18/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
Halogenated flame retardants (HFRs), including Tetrabromobisphenol A (TBBPA), Tetrabromobisphenol S (TBBPS), and Tetrachlorobisphenol A (TCBPA), are widely applied in the manufacturing industry to improve fire safety and can be detected in pregnant women's serum at nanomolar levels. Thus, it is necessary to pay attention to the three HFR potential development toxicity, which has not been conclusively addressed yet. The liver is the main organ that detoxifies our body; TBBPA exposure may lead to increased liver weight in rodents. Therefore, in this study, we assessed the developmental hepatic toxicity of the three HFRs with a human embryonic stem cell hepatic differentiation-based system and transcriptomics analyses. We mostly evaluated lineage fate alterations and demonstrated the three HFRs may have common disruptive effects on hepatic differentiation, with TCBPA being significantly more potent. More specifically, the three HFRs up-regulated genes related to cell cycle and FGF10 signaling, at late stages of the hepatic differentiation. This indicates the three chemicals promoted hepatoblast proliferation likely via up-regulating the FGF10 cascade. At the same time, we also presented a powerful way to combine in vitro differentiation and in silico transcriptomic analyses, to efficiently evaluate hazardous materials' adverse effects on lineage fate decisions during early development.
Collapse
Affiliation(s)
- Renjun Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuyu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China; Wellcome Trust/CRUK Gurdon Institute, Department of Pathology, University of Cambridge, Cambridge, CB2 1QN, UK
| | - Xiaoxing Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Nuoya Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Linshu Jiang
- Beijing Key Laboratory for Dairy Cow Nutrition, Beijing University of Agriculture, Beijing, 102206, China
| | - Yang Zhang
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
30
|
Prasad MS, Charney RM, Patel LJ, García-Castro MI. Distinct molecular profile and restricted stem cell potential defines the prospective human cranial neural crest from embryonic stem cell state. Stem Cell Res 2020; 49:102086. [PMID: 33370869 PMCID: PMC7932500 DOI: 10.1016/j.scr.2020.102086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 06/14/2020] [Accepted: 11/04/2020] [Indexed: 12/18/2022] Open
Abstract
Neural crest cells are an embryonic multipotent stem cell population. Recent studies in model organisms have suggested that neural crest cells are specified earlier than previously thought, at blastula stages. However, the molecular dynamics of early neural crest specification, and functional changes from pluripotent precursors to early specified NC, remain to be elucidated. In this report, we utilized a robust human model of cranial neural crest formation to address the distinct molecular character of the earliest stages of neural crest specification and assess the functional differences from its embryonic stem cell precursor. Our human neural crest model reveals a rapid change in the epigenetic state of neural crest and pluripotency genes, accompanied by changes in gene expression upon Wnt-based induction from embryonic stem cells. These changes in gene expression are directly regulated by the transcriptional activity of β-catenin. Furthermore, prospective cranial neural crest cells are characterized by restricted stem cell potential compared to embryonic stem cells. Our results suggest that human neural crest induced by Wnt/β-catenin signaling from human embryonic stem cells rapidly acquire a prospective neural crest cell state defined by a unique molecular signature and endowed with limited potential compared to pluripotent stem cells.
Collapse
Affiliation(s)
- Maneeshi S Prasad
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, USA.
| | - Rebekah M Charney
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, USA
| | - Lipsa J Patel
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, USA
| | - Martín I García-Castro
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, USA.
| |
Collapse
|
31
|
Liu R, Zhang Y, Ding Y, Zhang S, Pan L. Characteristics of TGFBR1-EGFR-CTNNB1-CDH1 Signaling Axis in Wnt-Regulated Invasion and Migration in Lung Cancer. Cell Transplant 2020; 29:963689720969167. [PMID: 33231090 PMCID: PMC7784602 DOI: 10.1177/0963689720969167] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
This study aimed to explore the characteristics of TGFBR1-epidermal growth factor receptor (EGFR)-CTNNB1-CDH1 axis in regulating the invasion and migration in lung cancer. Using the small interfering RNA technology, EGFR was silenced in H2170 and H1299 cells. Then, the colony formation, migration, and invasion abilities were detected using colony-forming assay and transwell assay. Moreover, the mRNA expression of smad2, smad3, CTNNB1, and CDH1, and the protein expression of TGFBR1, CDH1, and TCF were determined using the real-time polymerase chain reaction and western blotting. The results showed that silencing EGFR could significantly decrease the colony-forming ability in H2170 and H1299. Knocking down EGFR could significantly inhibit the invasion and migration ability of H2179 and H1299. Inhibiting the expression of EGFR could significantly decrease the expression of smad2, smad3, CDH1, and CTNNB1, with all P-values <0.05. In addition, silencing EGFR could markedly decrease the expression of TGFBR1 and CDH1 in H1299 and H2170, with all P-values <0.05. In conclusion, silencing EGFR could significantly regulate the progression of lung cancer via TGFBR1-EGFR-CTNNB1-CDH1 axis in Wnt signaling pathway.
Collapse
Affiliation(s)
- Rong Liu
- Department of Radiology, First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Yusui Zhang
- Department of Radiology, First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Yuan Ding
- Department of Radiology, First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Shuai Zhang
- Department of Interventional Radiology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
- Shuai Zhang, Department of Interventional Radiology, the Affiliated Cancer Hospital of Guizhou Medical University, No. 1 West Beijing Road, Guiyang 550004, China.
| | - Long Pan
- Department of Interventional and Vascular Surgery, Tenth People’s Hospital of Tongji University, Shanghai, China
- Long Pan, Department of Interventional and Vascular Surgery, Tenth People’s Hospital of Tongji University. No. 301 Middle Yan Chang Road, Shanghai 200072, China.
| |
Collapse
|
32
|
Kreuser U, Buchert J, Haase A, Richter W, Diederichs S. Initial WNT/β-Catenin Activation Enhanced Mesoderm Commitment, Extracellular Matrix Expression, Cell Aggregation and Cartilage Tissue Yield From Induced Pluripotent Stem Cells. Front Cell Dev Biol 2020; 8:581331. [PMID: 33195222 PMCID: PMC7661475 DOI: 10.3389/fcell.2020.581331] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/07/2020] [Indexed: 12/20/2022] Open
Abstract
Mesodermal differentiation of induced pluripotent stem cells (iPSCs) in vitro and subsequent specification into mesodermal derivatives like chondrocytes is currently afflicted with a substantial cell loss that severely limits tissue yield. More knowledge on the key players regulating mesodermal differentiation of iPSCs is currently needed to drive all cells into the desired lineage and to overcome the current need for intermediate cell selection steps to remove misdifferentiated cells. Using two independent human iPSC lines, we here report that a short initial WNT/β-catenin pulse induced by the small molecule CHIR99021 (24 h) enhanced expression of mesodermal markers (PDGFRα, HAND1, KDR, and GATA4), supported the exit from pluripotency (decreased OCT4, SOX2, and LIN28A) and inhibited ectodermal misdifferentiation (reduced PAX6, TUBB3, and NES). Importantly, the initial CHIR pulse increased cell proliferation until day 14 (five-fold), adjusted expression of adhesion-related genes (CDH3 up, CDH6 down) and increased extracellular matrix (ECM)-related gene expression (COL6, COL1, COL3, COL5, DCN, NPNT, LUM, MGP, MATN2, and VTN), thus yielding more matrix-interacting progenitors with a high aggregation capability. Enhanced contribution to chondrogenic pellet formation increased the cell yield after eight weeks 200-fold compared to controls. The collagen type II and proteoglycan-positive area was enlarged in the CHIR group, indicating an increased number of cartilage-forming cells. Conclusively, short initial WNT activation improved mesoderm commitment and our data demonstrated for the first time to our knowledge that, acting via stimulation of cell proliferation, ECM expression and cell aggregation, WNT pulsing is a key step to make cell selection steps before chondrogenesis obsolete. This advanced understanding of the WNT/β-catenin function is a major step toward robust and efficient generation of high-quality mesodermal progenitors from human iPSCs and toward rescuing low tissue yield during subsequent in vitro chondrogenesis, which is highly desired for clinical cartilage regeneration, disease modeling and drug screening.
Collapse
Affiliation(s)
- Ursula Kreuser
- Research Center for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Justyna Buchert
- Research Center for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Alexandra Haase
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiac, Thoracic, Transplantation, and Vascular Surgery, Hannover, Germany
| | - Wiltrud Richter
- Research Center for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Solvig Diederichs
- Research Center for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| |
Collapse
|
33
|
Tessier S, Risbud MV. Understanding embryonic development for cell-based therapies of intervertebral disc degeneration: Toward an effort to treat disc degeneration subphenotypes. Dev Dyn 2020; 250:302-317. [PMID: 32564440 DOI: 10.1002/dvdy.217] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/09/2020] [Accepted: 06/14/2020] [Indexed: 12/19/2022] Open
Abstract
Chronic low back and neck pain are associated with intervertebral disc degeneration and are major contributors to the global burden of disability. New evidence now suggests that disc degeneration comprises a spectrum of subphenotypes influenced by genetic background, age, and environmental factors, which may be contributing to the mixed outcomes seen in clinical trials of cell-based therapies that aim to treat disc degeneration. This problem is further compounded by the fact that disc degeneration and aging coincide with an exhaustion of endogenous progenitor cells, imposing limitations on the regenerative capacity of the disc. At the bench-side, current work is focused on applying our knowledge of embryonic disc development to direct and refine differentiation of adult and human-induced pluripotent stem cells into notochord-like and nucleus pulposus-like cells for use in novel cell-based therapies. Accordingly, this review presents the salient features of intervertebral disc development, post-natal maintenance, and regeneration, with emphasis on recent advancements. We also discuss how a stratified approach can be undertaken for the development of future cell-based therapies to bring emerging subphenotypes into consideration.
Collapse
Affiliation(s)
- Steven Tessier
- Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA.,Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Makarand V Risbud
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Graduate Program in Cell Biology and Regenerative Medicine, Jefferson College of Life Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| |
Collapse
|
34
|
Abstract
The polar trophoblast overlays the epiblast in eutherian mammals and, depending on the species, has one of two different fates. It either remains a single-layered, thinning epithelium called "Rauber's layer," which soon disintegrates, or, alternatively, it keeps proliferating, contributing heavily to the population of differentiating, invasive trophoblast cells and, at least in mice, to the induction of gastrulation. While loss of the persistent polar trophoblast in mice leads to reduced induction of gastrulation, we show here that prevention of the loss of the polar trophoblast in cattle results in ectopic domains of the gastrulation marker, BRACHYURY This phenotype, and increased epiblast proliferation, arose when Rauber's layer was maintained for a day longer by countering apoptosis through BCL2 overexpression. This suggests that the disappearance of Rauber's layer is a necessity, presumably to avoid excessive signaling interactions between this layer and the subjacent epiblast. We note that, in all species in which the polar trophoblast persists, including humans and mice, ectopic polar trophoblast signaling is prevented via epiblast cavitation which leads to the (pro)amniotic cavity, whose function is to distance the central epiblast from such signaling interactions.
Collapse
|
35
|
Rifes P, Isaksson M, Rathore GS, Aldrin-Kirk P, Møller OK, Barzaghi G, Lee J, Egerod KL, Rausch DM, Parmar M, Pers TH, Laurell T, Kirkeby A. Modeling neural tube development by differentiation of human embryonic stem cells in a microfluidic WNT gradient. Nat Biotechnol 2020; 38:1265-1273. [DOI: 10.1038/s41587-020-0525-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 04/14/2020] [Indexed: 12/27/2022]
|
36
|
TATA box-binding protein-related factor 3 drives the mesendoderm specification of human embryonic stem cells by globally interacting with the TATA box of key mesendodermal genes. Stem Cell Res Ther 2020; 11:196. [PMID: 32448362 PMCID: PMC7245780 DOI: 10.1186/s13287-020-01711-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/23/2020] [Accepted: 05/06/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Mesendodermal formation during early gastrulation requires the expression of lineage-specific genes, while the regulatory mechanisms during this process have not yet been fully illustrated. TATA box-binding protein (TBP) and TBP-like factors are general transcription factors responsible for the transcription initiation by recruiting the preinitiation complex to promoter regions. However, the role of TBP family members in the regulation of mesendodermal specification remains largely unknown. METHODS We used an in vitro mesendodermal differentiation system of human embryonic stem cells (hESCs), combining with the microarray and quantitative polymerase chain reaction (qRT-PCR) analysis, loss of function and gain of function to determine the function of the TBP family member TBP-related factor 3 (TRF3) during mesendodermal differentiation of hESCs. The chromatin immunoprecipitation (ChIP) and biochemistry analysis were used to determine the binding of TRF3 to the promoter region of key mesendodermal genes. RESULTS The mesendodermal differentiation of hESCs was confirmed by the microarray gene expression profile, qRT-PCR, and immunocytochemical staining. The expression of TRF3 mRNA was enhanced during mesendodermal differentiation of hESCs. The TRF3 deficiency did not affect the pluripotent marker expression, alkaline phosphatase activity, and cell cycle distribution of undifferentiated hESCs or the expression of early neuroectodermal genes during neuroectodermal differentiation. During the mesendodermal differentiation, the expression of pluripotency markers decreased in both wild-type and TRF3 knockout (TRF3-/-) cells, while the TRF3 deficiency crippled the expression of the mesendodermal markers. The reintroduction of TRF3 into the TRF3-/- hESCs rescued inhibited mesendodermal differentiation. Mechanistically, the TRF3 binding profile was significantly shifted to the mesendodermal specification during mesendodermal differentiation of hESCs based on the ChIP-seq data. Moreover, ChIP and ChIP-qPCR analysis showed that TRF3 was enriched at core promoter regions of mesendodermal developmental genes, EOMESODERMIN, BRACHYURY, mix paired-like homeobox, and GOOSECOID homeobox, during mesendodermal differentiation of hESCs. CONCLUSIONS These results reveal that the TBP family member TRF3 is dispensable in the undifferentiated hESCs and the early neuroectodermal differentiation. However, it directs mesendodermal lineage commitment of hESCs via specifically promoting the transcription of key mesendodermal transcription factors. These findings provide new insights into the function and mechanisms of the TBP family member in hESC early lineage specification.
Collapse
|
37
|
Luo X, van der Veer BK, Sun L, Bartoccetti M, Boretto M, Vankelecom H, Khoueiry R, Koh KP. Coordination of germ layer lineage choice by TET1 during primed pluripotency. Genes Dev 2020; 34:598-618. [PMID: 32115407 PMCID: PMC7111260 DOI: 10.1101/gad.329474.119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 01/27/2020] [Indexed: 01/23/2023]
Abstract
Here, Luo et al. show how the DNA dioxygenase Tet1 plays a pivotal role upstream of germ layer lineage bifurcation. A permissive role for Tet1 in neural fate induction is identified, and involves Zic2-dependent engagement at neural target genes at lineage priming, is dependent on the signaling environment during gastrulation, and impacts neural tube closure after gastrulation. Gastrulation in the early postimplantation stage mammalian embryo begins when epiblast cells ingress to form the primitive streak or develop as the embryonic ectoderm. The DNA dioxygenase Tet1 is highly expressed in the epiblast and yet continues to regulate lineage specification during gastrulation when its expression is diminished. Here, we show how Tet1 plays a pivotal role upstream of germ layer lineage bifurcation. During the transition from naive pluripotency to lineage priming, a global reconfiguration redistributes Tet1 from Oct4-cobound promoters to distal regulatory elements at lineage differentiation genes, which are distinct from high-affinity sites engaged by Oct4. An altered chromatin landscape in Tet1-deficient primed epiblast-like cells is associated with enhanced Oct4 expression and binding to Nodal and Wnt target genes, resulting in collaborative signals that enhance mesendodermal and inhibit neuroectodermal gene expression during lineage segregation. A permissive role for Tet1 in neural fate induction involves Zic2-dependent engagement at neural target genes at lineage priming, is dependent on the signaling environment during gastrulation, and impacts neural tube closure after gastrulation. Our findings provide mechanistic information for epigenetic integration of pluripotency and signal-induced differentiation cues.
Collapse
Affiliation(s)
- Xinlong Luo
- Laboratory for Stem Cell and Developmental Epigenetics, Department of Development and Regeneration, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Bernard K van der Veer
- Laboratory for Stem Cell and Developmental Epigenetics, Department of Development and Regeneration, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Lei Sun
- Laboratory for Stem Cell and Developmental Epigenetics, Department of Development and Regeneration, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Michela Bartoccetti
- Laboratory for Stem Cell and Developmental Epigenetics, Department of Development and Regeneration, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Matteo Boretto
- Laboratory of Tissue Plasticity in Health and Disease, Department of Development and Regeneration, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Hugo Vankelecom
- Laboratory of Tissue Plasticity in Health and Disease, Department of Development and Regeneration, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Rita Khoueiry
- Laboratory for Stem Cell and Developmental Epigenetics, Department of Development and Regeneration, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Kian Peng Koh
- Laboratory for Stem Cell and Developmental Epigenetics, Department of Development and Regeneration, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| |
Collapse
|
38
|
Reprogramming of chimpanzee fibroblasts into a multipotent cancerous but not fully pluripotent state by transducing iPSC factors in 2i/LIF culture. Differentiation 2020; 112:67-76. [DOI: 10.1016/j.diff.2020.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/23/2019] [Accepted: 01/06/2020] [Indexed: 02/07/2023]
|
39
|
Taei A, Rasooli P, Braun T, Hassani SN, Baharvand H. Signal regulators of human naïve pluripotency. Exp Cell Res 2020; 389:111924. [PMID: 32112799 DOI: 10.1016/j.yexcr.2020.111924] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 02/18/2020] [Accepted: 02/23/2020] [Indexed: 12/19/2022]
Abstract
Pluripotent cells transiently develop during peri-implantation embryogenesis and have the capacity to convert into three embryonic lineages. Two typical states of pluripotency, naïve and primed, can be experimentally induced in vitro. The in vitro naïve state can be stabilized in response to environmental inductive cues via a unique transcriptional regulatory program. However, interference with various signaling pathways creates a spectrum of alternative pluripotent cells that display different functions and molecular expression patterns. Similarly, human naïve pluripotent cells can be placed into two main levels - intermediate and bona fide. Here, we discuss several culture conditions that have been used to establish naïve-associated gene regulatory networks in human pluripotent cells. We also describe different transcriptional patterns in various culture systems that are associated with these two levels of human naïve pluripotency.
Collapse
Affiliation(s)
- Adeleh Taei
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Developmental Biology, University of Science and Culture, Tehran, Iran
| | - Paniz Rasooli
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Thomas Braun
- Max-Planck Institute for Heart and Lung Research, Department of Cardiac Development and Remodeling, Bad Nauheim, Germany
| | - Seyedeh-Nafiseh Hassani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Developmental Biology, University of Science and Culture, Tehran, Iran.
| |
Collapse
|
40
|
NOTO Transcription Factor Directs Human Induced Pluripotent Stem Cell-Derived Mesendoderm Progenitors to a Notochordal Fate. Cells 2020; 9:cells9020509. [PMID: 32102328 PMCID: PMC7072849 DOI: 10.3390/cells9020509] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 12/11/2022] Open
Abstract
The founder cells of the Nucleus pulposus, the centre of the intervertebral disc, originate in the embryonic notochord. After birth, mature notochordal cells (NC) are identified as key regulators of disc homeostasis. Better understanding of their biology has great potential in delaying the onset of disc degeneration or as a regenerative-cell source for disc repair. Using human pluripotent stem cells, we developed a two-step method to generate a stable NC-like population with a distinct molecular signature. Time-course analysis of lineage-specific markers shows that WNT pathway activation and transfection of the notochord-related transcription factor NOTO are sufficient to induce high levels of mesendoderm progenitors and favour their commitment toward the notochordal lineage instead of paraxial and lateral mesodermal or endodermal lineages. This study results in the identification of NOTO-regulated genes including some that are found expressed in human healthy disc tissue and highlights NOTO function in coordinating the gene network to human notochord differentiation.
Collapse
|
41
|
Fu Y, Xu M, Cui Z, Yang Z, Zhang Z, Yin X, Huang X, Zhou M, Wang X, Chen C. Genome-wide identification of FHL1 as a powerful prognostic candidate and potential therapeutic target in acute myeloid leukaemia. EBioMedicine 2020; 52:102664. [PMID: 32062360 PMCID: PMC7021551 DOI: 10.1016/j.ebiom.2020.102664] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 01/16/2020] [Accepted: 01/22/2020] [Indexed: 01/21/2023] Open
Abstract
Background Acute myeloid leukaemia (AML) is a malignant haematological tumour with high heterogeneity and mortality. A reliable prognostic assessment is critical for treatment strategies. However, the current prognostic evaluation system of AML is insufficient. Methods Genome-wide univariate Cox regression analysis was performed on three independent AML datasets to screen for the prognostic-related genes. Kaplan–Meier survival analysis was employed to verify the efficacy of FHL1 in evaluating overall survival in 1298 de novo AML patients, 648 non-acute promyelocytic leukaemia AML patients and 407 cytogenetically normal AML patients; the data for some of these patients were also used for EFS and RFS validation. Multivariate Cox regression was performed to validate FHL1 as an independent prognostic indicator. WGCNA, GSEA, and gene correlation analysis were applied to explore the mechanism of FHL1 in AML. The synergistic cytocidal effect of FHL1 knockdown was verified in in vitro experiments. Findings Comprehensive genome-wide analyses and large-sample validation showed that FHL1 is a powerful prognostic candidate for overall survival, event-free survival, and relapse-free survival in AML and is independent of prognosis-related clinical factors and genetic abnormalities. The molecular mechanism may occur through regulation of FHL1 in leukaemia stem cells, tumour-associated signalling pathways, and transmembrane transport of chemotherapeutic drugs. FHL1-targeted intervention enhances the sensitivity of AML cells to cytarabine. Interpretation FHL1 may serve as an evaluation factor for clinical strategy selection, and its targeted intervention may be beneficial for chemotherapy in AML patients.
Collapse
Affiliation(s)
- Yue Fu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China; School of Medicine, Shandong University, Jinan, Shandong, China; Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Man Xu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zelong Cui
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zongcheng Yang
- School of Stomatology, Shandong University, Jinan, Shandong, China
| | - Zhiyong Zhang
- School of Computer Science and Technology, Shandong University, Qingdao, Shandong, China; Fintech Institute of the People's Bank of China, Shenzhen, Guangdong, China
| | - Xiaolin Yin
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xiangnan Huang
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Minran Zhou
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xiaoming Wang
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Chunyan Chen
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China.
| |
Collapse
|
42
|
Wang Y, Zeng G, Jiang Y. The Emerging Roles of miR-125b in Cancers. Cancer Manag Res 2020; 12:1079-1088. [PMID: 32104088 PMCID: PMC7024862 DOI: 10.2147/cmar.s232388] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 02/02/2020] [Indexed: 12/14/2022] Open
Abstract
MicroRNAs (miRNAs) are endogenous, noncoding, single-stranded RNA molecules of 22 nucleotides in length. MiRNAs have both tumor-suppressive properties and oncogenic properties that can control critical processes in tumors. Mature miR-125b originates from miR-125b-1 and miR-125b-2 and leads to the degradation of target mRNAs or the inhibition of translation through binding to the 3′ untranslated regions (3′-UTR) of target mRNAs. Importantly, miR-125b is involved in regulating NF-κB, p53, PI3K/Akt/mTOR, ErbB2, Wnt, and another signaling pathways, thereby controlling cell proliferation, differentiation, metabolism, apoptosis, drug resistance and tumor immunity. This review aims to summarize the recent literature on the role of miR-125b in the regulation of tumorigenesis and to explore its potential clinical application in the diagnosis, prognosis and clinical treatment of tumors.
Collapse
Affiliation(s)
- Ying Wang
- Department of Oncology, The Fifth People's Hospital of Chengdu, Chengdu, People's Republic of China
| | - Guilin Zeng
- Department of Oncology, The Fifth People's Hospital of Chengdu, Chengdu, People's Republic of China
| | - Yicheng Jiang
- Department of Oncology, The People's Hospital of Chongqing Hechuan, Chongqing, People's Republic of China
| |
Collapse
|
43
|
Senft AD, Costello I, King HW, Mould AW, Bikoff EK, Robertson EJ. Combinatorial Smad2/3 Activities Downstream of Nodal Signaling Maintain Embryonic/Extra-Embryonic Cell Identities during Lineage Priming. Cell Rep 2020; 24:1977-1985.e7. [PMID: 30134160 PMCID: PMC6113931 DOI: 10.1016/j.celrep.2018.07.077] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/31/2018] [Accepted: 07/22/2018] [Indexed: 11/29/2022] Open
Abstract
Epiblast cells in the early post-implantation stage mammalian embryo undergo a transition described as lineage priming before cell fate allocation, but signaling pathways acting upstream remain ill defined. Genetic studies demonstrate that Smad2/3 double-mutant mouse embryos die shortly after implantation. To learn more about the molecular disturbances underlying this abrupt failure, here we characterized Smad2/3-deficient embryonic stem cells (ESCs). We found that Smad2/3 double-knockout ESCs induced to form epiblast-like cells (EpiLCs) display changes in naive and primed pluripotency marker gene expression, associated with the disruption of Oct4-bound distal regulatory elements. In the absence of Smad2/3, we observed enhanced Bmp target gene expression and de-repression of extra-embryonic gene expression. Cell fate allocation into all three embryonic germ layers is disrupted. Collectively, these experiments demonstrate that combinatorial Smad2/3 functional activities are required to maintain distinct embryonic and/or extra-embryonic cell identity during lineage priming in the epiblast before gastrulation. Smad2/3 alters the transcriptome and activity of distal regulatory elements in EpiLCs Smad2 prevents expression of extra-embryonic genes during priming and differentiation Smad2/3 is essential for mesoderm and definitive endoderm cell fate allocation Smad2/3 signaling balances Bmp signaling during neural precursor differentiation
Collapse
Affiliation(s)
- Anna D Senft
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
| | - Ita Costello
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
| | - Hamish W King
- Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK
| | - Arne W Mould
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
| | - Elizabeth K Bikoff
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
| | | |
Collapse
|
44
|
Lei I, Tian S, Chen V, Zhao Y, Wang Z. SWI/SNF Component BAF250a Coordinates OCT4 and WNT Signaling Pathway to Control Cardiac Lineage Differentiation. Front Cell Dev Biol 2020; 7:358. [PMID: 32039194 PMCID: PMC6987383 DOI: 10.3389/fcell.2019.00358] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 12/10/2019] [Indexed: 12/30/2022] Open
Abstract
Dissecting epigenetic mechanisms controlling early cardiac differentiation will provide insights into heart regeneration and heart disease treatment. SWI/SNF complexes remodel nucleosomes to regulate gene expression and play a key role in organogenesis. Here, we reported a unique function of BAF250a in regulating the physical interaction of OCT4 and β-CATENIN during cardiac lineage differentiation from human ESCs. BAF250a deletion greatly reduced the physical interaction between OCT4 and β-CATENIN but did not alter the expression of β-CATENIN and OCT4 in the mesodermal progenitor cells. BAF250a ablation led to decreased recruitment of OCT4 and β-CATENIN at promoters of key mesodermal lineage genes, such as MESP1 and EOMES. Subsequently, the expression of lineage-specific genes was downregulated, whereas the expression of pluripotent genes was upregulated. In parallel, BAF250a ablation also altered recruitments of OCT4 and β-CATENIN to the promoter of CCND2 and CCND3, two key genes for S phase entry during cell cycle. Consequently, BAF250a deletion led to prolonged S phase in Mesp1+ cardiac progenitor cells, which in turn inhibited efficient differentiation of Mesp1+ to Isl1+ cells. Furthermore, BAF250a deletion abolished the interaction of OCT4 and BRG1 in mesoderm, suggesting that BAF250a is the key component in SWI/SNF complex that determines the interaction of Oct4/β-catenin in mesoderm. In contrast, we found that BAF250a did not regulate the OCT4/β-CATENIN interaction during neuroectoderm differentiation. Altogether, our results suggest that BAF250a specifically controls proper cardiac mesoderm differentiation by reorganizing the binding of OCT4/β-CATENIN and regulates both key lineage differentiation genes and cell cycle genes that coincided in response to WNT/β-CATENIN signal.
Collapse
Affiliation(s)
- Ienglam Lei
- Faculty of Health Sciences, University of Macau, Taipa, China.,Department of Cardiac Surgery, Cardiovascular Center, University of Michigan, Ann Arbor, MI, United States
| | - Shuo Tian
- Department of Cardiac Surgery, Cardiovascular Center, University of Michigan, Ann Arbor, MI, United States
| | - Victor Chen
- Department of Cardiac Surgery, Cardiovascular Center, University of Michigan, Ann Arbor, MI, United States
| | - Yong Zhao
- Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Key Laboratory of Cardiac Regenerative Medicine, National Health and Family Planning Commission, Central China Branch of National Center for Cardiovascular Diseases Henan Province, Zhengzhou, China
| | - Zhong Wang
- Department of Cardiac Surgery, Cardiovascular Center, University of Michigan, Ann Arbor, MI, United States
| |
Collapse
|
45
|
Morgani SM, Hadjantonakis AK. Signaling regulation during gastrulation: Insights from mouse embryos and in vitro systems. Curr Top Dev Biol 2019; 137:391-431. [PMID: 32143751 DOI: 10.1016/bs.ctdb.2019.11.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Gastrulation is the process whereby cells exit pluripotency and concomitantly acquire and pattern distinct cell fates. This is driven by the convergence of WNT, BMP, Nodal and FGF signals, which are tightly spatially and temporally controlled, resulting in regional and stage-specific signaling environments. The combination, level and duration of signals that a cell is exposed to, according its position within the embryo and the developmental time window, dictates the fate it will adopt. The key pathways driving gastrulation exhibit complex interactions, which are difficult to disentangle in vivo due to the complexity of manipulating multiple signals in parallel with high spatiotemporal resolution. Thus, our current understanding of the signaling dynamics regulating gastrulation is limited. In vitro stem cell models have been established, which undergo organized cellular differentiation and patterning. These provide amenable, simplified, deconstructed and scalable models of gastrulation. While the foundation of our understanding of gastrulation stems from experiments in embryos, in vitro systems are now beginning to reveal the intricate details of signaling regulation. Here we discuss the current state of knowledge of the role, regulation and dynamic interaction of signaling pathways that drive mouse gastrulation.
Collapse
Affiliation(s)
- Sophie M Morgani
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, United States; Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Anna-Katerina Hadjantonakis
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, United States.
| |
Collapse
|
46
|
Tewary M, Dziedzicka D, Ostblom J, Prochazka L, Shakiba N, Heydari T, Aguilar-Hidalgo D, Woodford C, Piccinini E, Becerra-Alonso D, Vickers A, Louis B, Rahman N, Danovi D, Geens M, Watt FM, Zandstra PW. High-throughput micropatterning platform reveals Nodal-dependent bisection of peri-gastrulation-associated versus preneurulation-associated fate patterning. PLoS Biol 2019; 17:e3000081. [PMID: 31634368 PMCID: PMC6822778 DOI: 10.1371/journal.pbio.3000081] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 10/31/2019] [Accepted: 09/25/2019] [Indexed: 12/22/2022] Open
Abstract
In vitro models of postimplantation human development are valuable to the fields of regenerative medicine and developmental biology. Here, we report characterization of a robust in vitro platform that enabled high-content screening of multiple human pluripotent stem cell (hPSC) lines for their ability to undergo peri-gastrulation-like fate patterning upon bone morphogenetic protein 4 (BMP4) treatment of geometrically confined colonies and observed significant heterogeneity in their differentiation propensities along a gastrulation associable and neuralization associable axis. This cell line-associated heterogeneity was found to be attributable to endogenous Nodal expression, with up-regulation of Nodal correlated with expression of a gastrulation-associated gene profile, and Nodal down-regulation correlated with a preneurulation-associated gene profile expression. We harness this knowledge to establish a platform of preneurulation-like fate patterning in geometrically confined hPSC colonies in which fates arise because of a BMPs signalling gradient conveying positional information. Our work identifies a Nodal signalling-dependent switch in peri-gastrulation versus preneurulation-associated fate patterning in hPSC cells, provides a technology to robustly assay hPSC differentiation outcomes, and suggests conserved mechanisms of organized fate specification in differentiating epiblast and ectodermal tissues.
Collapse
Affiliation(s)
- Mukul Tewary
- Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario, Canada
- Collaborative Program in Developmental Biology, University of Toronto, Toronto, Ontario, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
- Centre for Stem Cells & Regenerative Medicine, King's College London, London, United Kingdom
| | - Dominika Dziedzicka
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Joel Ostblom
- Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - Laura Prochazka
- Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Nika Shakiba
- Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Tiam Heydari
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - Daniel Aguilar-Hidalgo
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - Curtis Woodford
- Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Elia Piccinini
- Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - David Becerra-Alonso
- Department of Quantitative Methods, Universidad Loyola Andalucia, Sevilla, Spain
| | - Alice Vickers
- Centre for Stem Cells & Regenerative Medicine, King's College London, London, United Kingdom
| | - Blaise Louis
- Centre for Stem Cells & Regenerative Medicine, King's College London, London, United Kingdom
| | - Nafees Rahman
- Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Davide Danovi
- Centre for Stem Cells & Regenerative Medicine, King's College London, London, United Kingdom
| | - Mieke Geens
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Fiona M. Watt
- Centre for Stem Cells & Regenerative Medicine, King's College London, London, United Kingdom
| | - Peter W. Zandstra
- Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario, Canada
- Collaborative Program in Developmental Biology, University of Toronto, Toronto, Ontario, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| |
Collapse
|
47
|
Gomez GA, Prasad MS, Wong M, Charney RM, Shelar PB, Sandhu N, Hackland JOS, Hernandez JC, Leung AW, García-Castro MI. WNT/β-catenin modulates the axial identity of embryonic stem cell-derived human neural crest. Development 2019; 146:dev.175604. [PMID: 31399472 DOI: 10.1242/dev.175604] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 07/26/2019] [Indexed: 12/27/2022]
Abstract
WNT/β-catenin signaling is crucial for neural crest (NC) formation, yet the effects of the magnitude of the WNT signal remain ill-defined. Using a robust model of human NC formation based on human pluripotent stem cells (hPSCs), we expose that the WNT signal modulates the axial identity of NCs in a dose-dependent manner, with low WNT leading to anterior OTX+ HOX- NC and high WNT leading to posterior OTX- HOX+ NC. Differentiation tests of posterior NC confirm expected derivatives, including posterior-specific adrenal derivatives, and display partial capacity to generate anterior ectomesenchymal derivatives. Furthermore, unlike anterior NC, posterior NC exhibits a transient TBXT+/SOX2+ neuromesodermal precursor-like intermediate. Finally, we analyze the contributions of other signaling pathways in posterior NC formation, which suggest a crucial role for FGF in survival/proliferation, and a requirement of BMP for NC maturation. As expected retinoic acid (RA) and FGF are able to modulate HOX expression in the posterior NC. Surprisingly, early RA supplementation prohibits NC formation. This work reveals for the first time that the amplitude of WNT signaling can modulate the axial identity of NC cells in humans.
Collapse
Affiliation(s)
- Gustavo A Gomez
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Maneeshi S Prasad
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Man Wong
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Rebekah M Charney
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Patrick B Shelar
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Nabjot Sandhu
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - James O S Hackland
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Jacqueline C Hernandez
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Alan W Leung
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Martín I García-Castro
- School of Medicine Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| |
Collapse
|
48
|
Multifactorial Modeling Reveals a Dominant Role of Wnt Signaling in Lineage Commitment of Human Pluripotent Stem Cells. Bioengineering (Basel) 2019; 6:bioengineering6030071. [PMID: 31443254 PMCID: PMC6783940 DOI: 10.3390/bioengineering6030071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/08/2019] [Accepted: 08/13/2019] [Indexed: 12/17/2022] Open
Abstract
The human primed pluripotent state is maintained by a complex balance of several signaling pathways governing pluripotency maintenance and commitment. Here, we explore a multiparameter approach using a full factorial design and a simple well-defined culture system to assess individual and synergistic contributions of Wnt, FGF and TGFβ signaling to pluripotency and lineage specification of human induced pluripotent stem cells (hiPSC). Hierarchical clustering and quadratic models highlighted a dominant effect of Wnt signaling over FGF and TGFβ signaling, drawing hiPSCs towards mesendoderm lineages. In addition, a synergistic effect between Wnt signaling and FGF was observed to have a negative contribution to pluripotency maintenance and a positive contribution to ectoderm and mesoderm commitment. Furthermore, FGF and TGFβ signaling only contributed significantly for negative ectoderm scores, suggesting that the effect of both factors for pluripotency maintenance resides in a balance of inhibitory signals instead of proactive stimulation of hiPSC pluripotency. Overall, our dry-signaling multiparameter modeling approach can contribute to elucidate individual and synergistic inputs, providing an additional degree of comprehension of the complex regulatory mechanisms of human pluripotency and commitment.
Collapse
|
49
|
Branco MA, Cotovio JP, Rodrigues CAV, Vaz SH, Fernandes TG, Moreira LM, Cabral JMS, Diogo MM. Transcriptomic analysis of 3D Cardiac Differentiation of Human Induced Pluripotent Stem Cells Reveals Faster Cardiomyocyte Maturation Compared to 2D Culture. Sci Rep 2019; 9:9229. [PMID: 31239450 PMCID: PMC6592905 DOI: 10.1038/s41598-019-45047-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 05/30/2019] [Indexed: 12/11/2022] Open
Abstract
Human induced pluripotent stem cells (hiPSCs) represent an almost limitless source of cells for disease modelling and drug screening applications. Here we established an efficient and robust 3D platform for cardiomyocyte (CMs) production from hiPSCs, solely through small-molecule-based temporal modulation of the Wnt signalling, which generates more than 90% cTNT+ cells. The impact of performing the differentiation process in 3D conditions as compared to a 2D culture system, was characterized by transcriptomic analysis by using data collected from sequential stages of 2D and 3D culture. We highlight that performing an initial period of hiPSC aggregation before cardiac differentiation primed hiPSCs towards an earlier mesendoderm lineage differentiation, via TGF-β/Nodal signaling stabilization. Importantly, it was also found that CMs in the 3D microenvironment mature earlier and show an improved communication system, which we suggested to be responsible for a higher structural and functional maturation of 3D cardiac aggregates.
Collapse
Affiliation(s)
- Mariana A Branco
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.,The Discoveries Centre for Regenerative and Precision Medicine, Lisbon Campus, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - João P Cotovio
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.,The Discoveries Centre for Regenerative and Precision Medicine, Lisbon Campus, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Carlos A V Rodrigues
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.,The Discoveries Centre for Regenerative and Precision Medicine, Lisbon Campus, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Sandra H Vaz
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028, Lisbon, Portugal.,Instituto de Farmacologia e Neurociências, Faculdade de Medicina da Universidade de Lisboa, 1649-028, Lisbon, Portugal
| | - Tiago G Fernandes
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.,The Discoveries Centre for Regenerative and Precision Medicine, Lisbon Campus, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Leonilde M Moreira
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Joaquim M S Cabral
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.,The Discoveries Centre for Regenerative and Precision Medicine, Lisbon Campus, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Maria Margarida Diogo
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal. .,The Discoveries Centre for Regenerative and Precision Medicine, Lisbon Campus, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.
| |
Collapse
|
50
|
MIR17HG-miR-18a/19a axis, regulated by interferon regulatory factor-1, promotes gastric cancer metastasis via Wnt/β-catenin signalling. Cell Death Dis 2019; 10:454. [PMID: 31186404 PMCID: PMC6560107 DOI: 10.1038/s41419-019-1685-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/18/2019] [Accepted: 05/23/2019] [Indexed: 12/24/2022]
Abstract
MIR17HG, located on chromosome 13, is a class of Pri-miRNAs that generates six miRNAs: miR-17, miR-18a, miR-19a, miR-20a, miR-19b-1 and miR-92-1. These miRNAs are ubiquitously overexpressed in diverse tumour types and exhibit complex biological links to tumour metastasis. We demonstrated that MIR17HG-derived miR-18a and miR-19a coordinately mediate gastric cancer cell metastasis by directly inhibiting SMAD2 expression and upregulating Wnt/β-catenin signalling. Based on previous studies, we hypothesised that an investigation of MIR17HG inhibition would be beneficial to clinical gastric cancer treatment, and systematically coupled bioinformatics analyses brought interferon regulatory factor-1 (IRF-1) to our attention. We then established stable clones in gastric cancer cells containing a doxycycline-inducible IRF-1 expression system and found that the expression of IRF-1 downregulates the embedded miRNAs of MIR17HG in gastric cancer cells and inhibits gastric cancer cell metastasis by attenuating Wnt/β-catenin signalling. Further rescue assays confirmed the crucial roles of miR-18a and miR-19a in the IRF-1-mediated inhibition of Wnt/β-catenin signalling. We also demonstrated that IRF-1 binds to the transcriptional site in the MIR17HG promoter and inhibits MIR17HG expression. Moreover, IFN-γ induced the IRF-1-mediated downregulation of MIR17HG in gastric cancer cells. Our hypothesis was supported by the results of immunohistochemistry analyses of clinical gastric cancer samples, and we also demonstrated the role of IRF-1 in inhibiting MIR17HG expression and tumour metastasis in vivo. We conclude that IRF-1 inhibits gastric cancer metastasis by downregulating MIR17HG-miR-18a/miR-19a axis expression and attenuating Wnt/β-catenin signalling.
Collapse
|