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Zeng X, Wang Y, Dai M, Li W, Huang Q, Qin L, Li Y, Yan Y, Xue X, Yi F, Li W, He L, Liu Q, Qi L. Single-cell transcriptomics dissects the transcriptome alterations of hematopoietic stem cells in myelodysplastic neoplasms. J Transl Med 2024; 22:359. [PMID: 38632656 PMCID: PMC11022353 DOI: 10.1186/s12967-024-05165-z] [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: 02/26/2024] [Accepted: 04/04/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Myelodysplastic neoplasms (MDS) are myeloid neoplasms characterized by disordered differentiation of hematopoietic stem cells and a predisposition to acute myeloid leukemia (AML). The underline pathogenesis remains unclear. METHODS In this study, the trajectory of differentiation and mechanisms of leukemic transformation were explored through bioinformatics analysis of single-cell RNA-Seq data from hematopoietic stem and progenitor cells (HSPCs) in MDS patients. RESULTS Among the HSPC clusters, the proportion of common myeloid progenitor (CMP) was the main cell cluster in the patients with excess blasts (EB)/ secondary AML. Cell cycle analysis indicated the CMP of MDS patients were in an active proliferative state. The genes involved in the cell proliferation, such as MAML3 and PLCB1, were up-regulated in MDS CMP. Further validation analysis indicated that the expression levels of MAML3 and PLCB1 in patients with MDS-EB were significantly higher than those without EB. Patients with high expression of PLCB1 had a higher risk of transformation to AML. PLCB1 inhibitor can suppress proliferation, induce cell cycle arrest, and activate apoptosis of leukemic cells in vitro. CONCLUSION This study revealed the transcriptomic change of HSPCs in MDS patients along the pseudotime and indicated that PLCB1 plays a key role in the transformation of MDS into leukemia.
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Affiliation(s)
- Xiangzong Zeng
- Department of Hematology, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
- Division of Gastroenterology, Institute of Digestive Disease, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Yichen Wang
- Division of Gastroenterology, Institute of Digestive Disease, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Min Dai
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wei Li
- Division of Gastroenterology, Institute of Digestive Disease, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Qingtian Huang
- Division of Gastroenterology, Institute of Digestive Disease, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Lingsha Qin
- Division of Gastroenterology, Institute of Digestive Disease, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Yuquan Li
- Department of Hematology, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Yanwen Yan
- Department of Hematology, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Xiangjun Xue
- Department of Hematology, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Fang Yi
- Department of Hematology, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Wenhao Li
- Department of Hematology, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Langyu He
- Department of Blood Transfusion, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Qifa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Ling Qi
- Division of Gastroenterology, Institute of Digestive Disease, Affiliated Qingyuan Hospital, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China.
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Banerjee S, Sanyal S, Hodawadekar S, Naiyer S, Bano N, Banerjee A, Rhoades J, Dong D, Allman D, Atchison ML. Unusual lineage plasticity revealed by YY1 knockout in pro-B cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.22.586298. [PMID: 38586061 PMCID: PMC10996465 DOI: 10.1101/2024.03.22.586298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
During B cell development, cells progress through multiple developmental stages with the pro-B cell stage defining commitment to the B cell lineage. YY1 is a ubiquitous transcription factor that is capable of both activation and repression functions. We find here that knockout of YY1 at the pro-B cell stage eliminates B lineage commitment. YY1 knockout pro-B cells can generate T lineage cells in vitro using the OP9- DL4 feeder system, as well as in vivo after injection into sub-lethally irradiated Rag1 -/- mice. These T lineage-like cells lose their B lineage transcript profile and gain a T cell lineage profile. Single cell-RNA-seq experiments showed that as YY1 knockout pro-B cells transition into T lineage cells, various cell clusters adopt transcript profiles representing a multiplicity of hematopoietic lineages indicating unusual lineage plasticity. Given the ubiquitous nature of YY1 and its dual activation and repression functions, YY1 likely regulates commitment in multiple cell lineages.
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Zolotarev N, Wang Y, Du M, Bayer M, Grosschedl A, Cisse I, Grosschedl R. Regularly spaced tyrosines in EBF1 mediate BRG1 recruitment and formation of nuclear subdiffractive clusters. Genes Dev 2024; 38:4-10. [PMID: 38233109 PMCID: PMC10903943 DOI: 10.1101/gad.350828.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 12/21/2023] [Indexed: 01/19/2024]
Abstract
B lineage priming by pioneer transcription factor EBF1 requires the function of an intrinsically disordered region (IDR). Here, we examine the role of regularly spaced tyrosines in the IDR as potential determinants of IDR function and activity of EBF1. We found that four Y > A mutations in EBF1 reduced the formation of condensates in vitro and subdiffractive clusters in vivo. Notably, Y > A mutant EBF1 was inefficient in promoting B cell differentiation and showed impaired chromatin binding, recruitment of BRG1, and activation of specific target genes. Thus, regularly spaced tyrosines in the IDR contribute to the biophysical and functional properties of EBF1.
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Affiliation(s)
- Nikolay Zolotarev
- Laboratory of Cellular and Molecular Immunology, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany
- Department of Biological Physics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany
| | - Yuanting Wang
- Laboratory of Cellular and Molecular Immunology, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany
| | - Manyu Du
- Department of Biological Physics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany
| | - Marc Bayer
- Laboratory of Cellular and Molecular Immunology, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany
| | - Anna Grosschedl
- Department of Biological Physics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany
| | - Ibrahim Cisse
- Department of Biological Physics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany
| | - Rudolf Grosschedl
- Laboratory of Cellular and Molecular Immunology, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany;
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Peters IJA, de Pater E, Zhang W. The role of GATA2 in adult hematopoiesis and cell fate determination. Front Cell Dev Biol 2023; 11:1250827. [PMID: 38033856 PMCID: PMC10682726 DOI: 10.3389/fcell.2023.1250827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
The correct maintenance and differentiation of hematopoietic stem cells (HSC) in bone marrow is vital for the maintenance and operation of the human blood system. GATA2 plays a critical role in the maintenance of HSCs and the specification of HSCs into the different hematopoietic lineages, highlighted by the various defects observed in patients with heterozygous mutations in GATA2, resulting in cytopenias, bone marrow failure and increased chance of myeloid malignancy, termed GATA2 deficiency syndrome. Despite this, the mechanisms underlying GATA2 deficiency syndrome remain to be elucidated. The detailed description of how GATA2 regulates HSC maintenance and blood lineage determination is crucial to unravel the pathogenesis of GATA2 deficiency syndrome. In this review, we summarize current advances in elucidating the role of GATA2 in hematopoietic cell fate determination and discuss the challenges of modeling GATA2 deficiency syndrome.
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Affiliation(s)
| | | | - Wei Zhang
- *Correspondence: Wei Zhang, ; Emma de Pater,
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Fei W, Yan Y, Liu G, Peng B, Liu Y, Chen Q. High-risk histological subtype-related FAM83A hijacked FOXM1 transcriptional regulation to promote malignant progression in lung adenocarcinoma. PeerJ 2023; 11:e16306. [PMID: 37904848 PMCID: PMC10613442 DOI: 10.7717/peerj.16306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 09/26/2023] [Indexed: 11/01/2023] Open
Abstract
Background According to the histopathology, lung adenocarcinoma (LUAD) could be divided into five distinct pathological subtypes, categorized as high-risk (micropapillary and solid) group, intermediate-risk (acinar and papillary) group, and low-risk (lepidic) group. Despite this classification, there is limited knowledge regarding the role of transcription factors (TFs) in the molecular regulation of LUAD histology patterns. Methods Publish data was mined to explore the candidate TFs associated with high-risk histopathology in LUAD, which was validated in tissue samples. Colony formation, CCK8, EdU, transwell, and matrigel assays were performed to determine the biological function of FAM83A in vitro. Subcutaneous tumor-bearing in BALB/c nude mice and xenograft perivitelline injection in zebrafish were utilized to unreal the function of FAM83A in vivo. We also performed chromatin immunoprecipitation (ChIP), dual-luciferase reporter, and rescue assays to uncover the underline mechanism of FAM83A. Immunohistochemistry (IHC) was performed to confirm the oncogenic role of FAM83A in clinical LUAD tissues. Results Screening the transcriptional expression data from TCGA-LUAD, we focus on the differentially expressed TFs across the divergent pathological subtypes, and identified that the expression of FAM83A is higher in patients with high-risk groups compared with those with intermediate or low-risk groups. The FAM83A expression is positively correlated with worse overall survival, progression-free survival, and advanced stages. Gain- and loss-of-function assays revealed that FAM83A promoted cell proliferation, invasion, and migration of tumor cell lines both in vivo and in vitro. Pathway enrichment analysis shows that FAM83A expression is significantly enriched in cell cycle-related pathways. The ChIP and luciferase reporter assays revealed that FAM83A hijacks the promoter of FOXM1 to progress the malignant LUAD, and the rescue assay uncovered that the function of FAM83A is partly dependent on FOXM1 regulation. Additionally, patients with high FAM83A expression positively correlated with higher IHC scores of Ki-67 and FOXM1, and patients with active FAM83A/FOXM1 axis had poor prognoses in LUAD. Conclusions Taken together, our study revealed that the high-risk histological subtype-related FAM83A hijacks FOXM1 transcriptional regulation to promote malignant progression in lung adenocarcinoma, which implies targeting FAM83A/FOXM1 is the therapeutic vulnerability.
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Affiliation(s)
- Wei Fei
- Department of Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yan Yan
- Department of Cardiovascular Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Guangjun Liu
- Department of Thoracic Surgery, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Bo Peng
- Department of Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Thoracic Surgery, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Yuanyuan Liu
- Department of Respiratory and Critical Care Medicine, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Qiang Chen
- Department of Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Thoracic Surgery, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
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Sigvardsson M. Transcription factor networks link B-lymphocyte development and malignant transformation in leukemia. Genes Dev 2023; 37:703-723. [PMID: 37673459 PMCID: PMC10546977 DOI: 10.1101/gad.349879.122] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Rapid advances in genomics have opened unprecedented possibilities to explore the mutational landscapes in malignant diseases, such as B-cell acute lymphoblastic leukemia (B-ALL). This disease is manifested as a severe defect in the production of normal blood cells due to the uncontrolled expansion of transformed B-lymphocyte progenitors in the bone marrow. Even though classical genetics identified translocations of transcription factor-coding genes in B-ALL, the extent of the targeting of regulatory networks in malignant transformation was not evident until the emergence of large-scale genomic analyses. There is now evidence that many B-ALL cases present with mutations in genes that encode transcription factors with critical roles in normal B-lymphocyte development. These include PAX5, IKZF1, EBF1, and TCF3, all of which are targeted by translocations or, more commonly, partial inactivation in cases of B-ALL. Even though there is support for the notion that germline polymorphisms in the PAX5 and IKZF1 genes predispose for B-ALL, the majority of leukemias present with somatic mutations in transcription factor-encoding genes. These genetic aberrations are often found in combination with mutations in genes that encode components of the pre-B-cell receptor or the IL-7/TSLP signaling pathways, all of which are important for early B-cell development. This review provides an overview of our current understanding of the molecular interplay that occurs between transcription factors and signaling events during normal and malignant B-lymphocyte development.
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Affiliation(s)
- Mikael Sigvardsson
- Department of Biomedical and Clinical Sciences, Linköping University, 58185 Linköping, Sweden; Division of Molecular Hematology, Lund University, 22184 Lund, Sweden
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Hu XH, Chen L, Wu H, Tang YB, Zheng QM, Wei XY, Wei Q, Huang Q, Chen J, Xu X. Cell therapy in end-stage liver disease: replace and remodel. Stem Cell Res Ther 2023; 14:141. [PMID: 37231461 DOI: 10.1186/s13287-023-03370-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 04/26/2023] [Indexed: 05/27/2023] Open
Abstract
Liver disease is prevalent worldwide. When it reaches the end stage, mortality rises to 50% or more. Although liver transplantation has emerged as the most efficient treatment for end-stage liver disease, its application has been limited by the scarcity of donor livers. The lack of acceptable donor organs implies that patients are at high risk while waiting for suitable livers. In this scenario, cell therapy has emerged as a promising treatment approach. Most of the time, transplanted cells can replace host hepatocytes and remodel the hepatic microenvironment. For instance, hepatocytes derived from donor livers or stem cells colonize and proliferate in the liver, can replace host hepatocytes, and restore liver function. Other cellular therapy candidates, such as macrophages and mesenchymal stem cells, can remodel the hepatic microenvironment, thereby repairing the damaged liver. In recent years, cell therapy has transitioned from animal research to early human studies. In this review, we will discuss cell therapy in end-stage liver disease treatment, especially focusing on various cell types utilized for cell transplantation, and elucidate the processes involved. Furthermore, we will also summarize the practical obstacles of cell therapy and offer potential solutions.
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Affiliation(s)
- Xin-Hao Hu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Lan Chen
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Hao Wu
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, 310003, China
| | - Yang-Bo Tang
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, 310003, China
| | - Qiu-Min Zheng
- Life Sciences Institute, Zhejiang University, Hangzhou, 310058, China
| | - Xu-Yong Wei
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Qiang Wei
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Qi Huang
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jian Chen
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China.
| | - Xiao Xu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China.
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Shevyrev D, Tereshchenko V, Berezina TN, Rybtsov S. Hematopoietic Stem Cells and the Immune System in Development and Aging. Int J Mol Sci 2023; 24:ijms24065862. [PMID: 36982935 PMCID: PMC10056303 DOI: 10.3390/ijms24065862] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/13/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Hematopoietic stem cells (HSCs) support haematopoiesis throughout life and give rise to the whole variety of cells of the immune system. Developing in the early embryo, passing through the precursor stage, and maturing into the first HSCs, they undergo a fairly large number of divisions while maintaining a high regenerative potential due to high repair activity. This potential is greatly reduced in adult HSCs. They go into a state of dormancy and anaerobic metabolism to maintain their stemness throughout life. However, with age, changes occur in the pool of HSCs that negatively affect haematopoiesis and the effectiveness of immunity. Niche aging and accumulation of mutations with age reduces the ability of HSCs to self-renew and changes their differentiation potential. This is accompanied by a decrease in clonal diversity and a disturbance of lymphopoiesis (decrease in the formation of naive T- and B-cells) and the predominance of myeloid haematopoiesis. Aging also affects mature cells, regardless of HSC, therefore, phagocytic activity and the intensity of the oxidative burst decrease, and the efficiency of processing and presentation of antigens by myeloid cells is impaired. Aging cells of innate and adaptive immunity produce factors that form a chronic inflammatory background. All these processes have a serious negative impact on the protective properties of the immune system, increasing inflammation, the risk of developing autoimmune, oncological, and cardiovascular diseases with age. Understanding the mechanisms of reducing the regenerative potential in a comparative analysis of embryonic and aging HSCs, the features of inflammatory aging will allow us to get closer to deciphering the programs for the development, aging, regeneration and rejuvenation of HSCs and the immune system.
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Affiliation(s)
- Daniil Shevyrev
- Centre for Cell Technology and Immunology, Sirius University of Science and Technology, Sirius, 354340 Sochi, Russia
| | - Valeriy Tereshchenko
- Centre for Cell Technology and Immunology, Sirius University of Science and Technology, Sirius, 354340 Sochi, Russia
| | - Tatiana N Berezina
- Department of Scientific Basis of Extreme Psychology, Moscow State University of Psychology and Education, 127051 Moscow, Russia
| | - Stanislav Rybtsov
- Centre for Cell Technology and Immunology, Sirius University of Science and Technology, Sirius, 354340 Sochi, Russia
- Centre for Regenerative Medicine, University of Edinburgh, Edinburgh EH8 9YL, UK
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