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Tshilate TS, Ishengoma E, Rhode C. Construction of a high-density linkage map and QTL detection for growth traits in South African abalone (Haliotis midae). Anim Genet 2024. [PMID: 38945682 DOI: 10.1111/age.13462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/23/2024] [Accepted: 06/16/2024] [Indexed: 07/02/2024]
Abstract
Haliotis midae is one of the most important molluscs in South African commercial aquaculture. In this study, a high-resolution integrated linkage map was constructed, and QTL identified using 2b-RADseq for genotyping SNPs in three families. The final integrated linkage map was composed by merging the individual family maps, resulting in 3290 informative SNPs mapping to 18 linkage groups, conforming to the known haploid chromosome number for H. midae. The total map spanned 1798.25 cM with an average marker interval of 0.55 cM, representing a genome coverage of 98.76%. QTL analysis, across all three families, resulted in a total of five QTL identified for growth-related traits, shell width, shell length, and total body weight. For shell width and total body weight, one QTL was identified for each trait respectively, whilst three QTL were identified for shell length. The identified QTL respectively explained between 7.20% and 11.40% of the observed phenotypic variance. All three traits were significantly correlated (r = 0.862-0.970; p < 0.01) and shared overlapping QTL. The QTL for growth traits were mapped back to the H. midae draft genome and BLAST searches revealed the identity of candidate genes, such as egf-1, megf10, megf6, tnx, sevp1, kcp, notch1, and scube2 with possible functional roles in H. midae growth. The constructed high-density linkage map and mapped QTL have given valuable insights regarding the genetic architecture of growth-related traits and will be important genetic resources for marker-assisted selection. It remains, however, important to validate causal variants through linkage disequilibrium fine mapping in future.
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Affiliation(s)
| | - Edson Ishengoma
- Department of Genetics, Stellenbosch University, Matieland, South Africa
- Mkwawa University College of Education, University of Dar es Salaam, Iringa, Tanzania
| | - Clint Rhode
- Department of Genetics, Stellenbosch University, Matieland, South Africa
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Lai X, Ji F, Yu F, Chen H, Shen S, Gao H. Delta of Exopalaemon carinicauda: molecular characterization, expression in different tissues and developmental stages, and its SNPs association analysis with development. Mol Biol Rep 2023; 50:10083-10095. [PMID: 37910385 DOI: 10.1007/s11033-023-08840-4] [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: 08/15/2023] [Accepted: 09/25/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND The Notch signaling pathway plays a significant role in the gene regulatory network of development of vertebrate and invertebrate. However, as a ligand for the Notch signaling pathway, the mechanism of Delta in the development of Exopalaemon carinicauda is still unclear. METHODS AND RESULTS The Delta's molecular characteristics, tissue distribution and their association with development in E. carinicauda were studied by RACE (rapid amplification of cDNA end), qRT-PCR (quantitative Real-time PCR) and SNP (single nucleotide polymorphism), respectively. The delta in E. carinicauda had a full-length cDNA of 2807 bp and its Delta of 808 amino-acid residue had the highest identity with the Delta of Homarus americanus (identity = 76.63%). Delta had the highest expression in the ovary, and its expression varied with different stages of embryonic, larval, and ovarian development. After delta RNA interference (with a highest interference efficiency of 66% at 24 h), the expression of Notch signaling pathway genes and developmental related genes was significantly reduced, and the ovarian development was significantly delayed. Further study found that there were 4 SNPs (ds1-4) in delta cDNA, of which two (ds2 T1521G caused a mutation Asn422Lys and ds3 G1674A caused a mutation Tyr473Cys in the EGF-like domain) were associated with the development of E. carinicauda. The Gonadosomatic Index (GSI) of the ds2 TT genotypes was 37.28% and 134.60% higher than E. carinicauda of GT and GG genotype respectively (P < 0.05). CONCLUSION Our research indicated that delta was involved in the development of E. carinicauda and provided new insights for molecular breeding with SNP markers in E. carinicauda.
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Affiliation(s)
- Xiaofang Lai
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Key Laboratory of Marine Biological Resources and Environment of Jiangsu Province, School of Marine Science and Fisheries, Jiangsu Ocean University, Lianyungang, 222005, Jiangsu, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Lianyungang, 222005, Jiangsu, China.
- Marine Resource Development institute of Jiangsu (Lianyungang), Lianyungang, 222005, Jiangsu, China.
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, Jiangsu, China.
| | - Fanyue Ji
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Key Laboratory of Marine Biological Resources and Environment of Jiangsu Province, School of Marine Science and Fisheries, Jiangsu Ocean University, Lianyungang, 222005, Jiangsu, China
| | - Feifan Yu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Key Laboratory of Marine Biological Resources and Environment of Jiangsu Province, School of Marine Science and Fisheries, Jiangsu Ocean University, Lianyungang, 222005, Jiangsu, China
| | - Hao Chen
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Key Laboratory of Marine Biological Resources and Environment of Jiangsu Province, School of Marine Science and Fisheries, Jiangsu Ocean University, Lianyungang, 222005, Jiangsu, China
| | - Shanrui Shen
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Key Laboratory of Marine Biological Resources and Environment of Jiangsu Province, School of Marine Science and Fisheries, Jiangsu Ocean University, Lianyungang, 222005, Jiangsu, China
| | - Huan Gao
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Key Laboratory of Marine Biological Resources and Environment of Jiangsu Province, School of Marine Science and Fisheries, Jiangsu Ocean University, Lianyungang, 222005, Jiangsu, China
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Lianyungang, 222005, Jiangsu, China
- Marine Resource Development institute of Jiangsu (Lianyungang), Lianyungang, 222005, Jiangsu, China
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, Jiangsu, China
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3
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Khan AO, Rodriguez-Romera A, Reyat JS, Olijnik AA, Colombo M, Wang G, Wen WX, Sousos N, Murphy LC, Grygielska B, Perrella G, Mahony CB, Ling RE, Elliott NE, Karali CS, Stone AP, Kemble S, Cutler EA, Fielding AK, Croft AP, Bassett D, Poologasundarampillai G, Roy A, Gooding S, Rayes J, Machlus KR, Psaila B. Human Bone Marrow Organoids for Disease Modeling, Discovery, and Validation of Therapeutic Targets in Hematologic Malignancies. Cancer Discov 2023; 13:364-385. [PMID: 36351055 PMCID: PMC9900323 DOI: 10.1158/2159-8290.cd-22-0199] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 10/04/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022]
Abstract
A lack of models that recapitulate the complexity of human bone marrow has hampered mechanistic studies of normal and malignant hematopoiesis and the validation of novel therapies. Here, we describe a step-wise, directed-differentiation protocol in which organoids are generated from induced pluripotent stem cells committed to mesenchymal, endothelial, and hematopoietic lineages. These 3D structures capture key features of human bone marrow-stroma, lumen-forming sinusoids, and myeloid cells including proplatelet-forming megakaryocytes. The organoids supported the engraftment and survival of cells from patients with blood malignancies, including cancer types notoriously difficult to maintain ex vivo. Fibrosis of the organoid occurred following TGFβ stimulation and engraftment with myelofibrosis but not healthy donor-derived cells, validating this platform as a powerful tool for studies of malignant cells and their interactions within a human bone marrow-like milieu. This enabling technology is likely to accelerate the discovery and prioritization of novel targets for bone marrow disorders and blood cancers. SIGNIFICANCE We present a human bone marrow organoid that supports the growth of primary cells from patients with myeloid and lymphoid blood cancers. This model allows for mechanistic studies of blood cancers in the context of their microenvironment and provides a much-needed ex vivo tool for the prioritization of new therapeutics. See related commentary by Derecka and Crispino, p. 263. This article is highlighted in the In This Issue feature, p. 247.
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Affiliation(s)
- Abdullah O. Khan
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, United Kingdom
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Antonio Rodriguez-Romera
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Jasmeet S. Reyat
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, United Kingdom
| | - Aude-Anais Olijnik
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Michela Colombo
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Guanlin Wang
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Wei Xiong Wen
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Nikolaos Sousos
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Cancer and Haematology Centre, Churchill Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Lauren C. Murphy
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Beata Grygielska
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, United Kingdom
| | - Gina Perrella
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, United Kingdom
| | - Christopher B. Mahony
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Rebecca E. Ling
- MRC Weatherall Institute of Molecular Medicine, Department of Paediatrics and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Natalina E. Elliott
- MRC Weatherall Institute of Molecular Medicine, Department of Paediatrics and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Christina Simoglou Karali
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Andrew P. Stone
- Vascular Biology Program, Boston Children's Hospital, Department of Surgery, Harvard Medical School, Boston, Massachusetts
| | - Samuel Kemble
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Emily A. Cutler
- University College London Cancer Institute, London, United Kingdom
| | | | - Adam P. Croft
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - David Bassett
- Healthcare Technologies Institute, School of Chemical Engineering, University of Birmingham, Birmingham, United Kingdom
| | | | - Anindita Roy
- MRC Weatherall Institute of Molecular Medicine, Department of Paediatrics and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Sarah Gooding
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Cancer and Haematology Centre, Churchill Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Julie Rayes
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, United Kingdom
| | - Kellie R. Machlus
- Vascular Biology Program, Boston Children's Hospital, Department of Surgery, Harvard Medical School, Boston, Massachusetts
| | - Bethan Psaila
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institute of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Cancer and Haematology Centre, Churchill Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
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4
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Li Y, Chen X. Progress on methods of T lymphocyte development in vitro. Zhejiang Da Xue Xue Bao Yi Xue Ban 2022; 51:491-499. [PMID: 37202105 PMCID: PMC10265001 DOI: 10.3724/zdxbyxb-2021-0369] [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: 11/30/2021] [Accepted: 03/20/2022] [Indexed: 05/20/2023]
Abstract
T lymphocytes (T cells) play an important role in adoptive cellular immunotherapy (ACT). T cells can be stably derived and easily obtained by various methods of T cell development in vitro, which have more advantages than traditional methods of T cells isolated from autologous or allogeneic tissues. At present, there are mainly three methods for T cell development in vitro: fetal thymus organ culture, recombinant thymus organ culture and two-dimensional culture driven by Notch signal. Fetal thymus organ culture is easy to operate, the isolated thymus can support T cell differentiation and development to maturity in vitro, but the intact thymus has problems of limited maintenance time and difficulty in cell harvesting. In recombinant thymic organ culture, various thymic stromal cells are dispersed and recombined to construct a three-dimensional culture environment, which can support T cell maturation in vitro and in vivo; however, biomaterials and three-dimensional environment may lead to limited culture maintenance time and cell yield. Two-dimensional culture method uses artificial presentation of Notch signaling pathway ligands to drive T cell differentiation and development; the culture architecture is simple and stable, but it can only support T cell development to the early immature stage. This article reviews the research progress of various culture methods of T cell development in vitro, and discusses the existing problems and the future development to facilitate the application of ACT.
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Bhalla P, Su DM, van Oers NSC. Thymus Functionality Needs More Than a Few TECs. Front Immunol 2022; 13:864777. [PMID: 35757725 PMCID: PMC9229346 DOI: 10.3389/fimmu.2022.864777] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 05/03/2022] [Indexed: 12/18/2022] Open
Abstract
The thymus, a primary lymphoid organ, produces the T cells of the immune system. Originating from the 3rd pharyngeal pouch during embryogenesis, this organ functions throughout life. Yet, thymopoiesis can be transiently or permanently damaged contingent on the types of systemic stresses encountered. The thymus also undergoes a functional decline during aging, resulting in a progressive reduction in naïve T cell output. This atrophy is evidenced by a deteriorating thymic microenvironment, including, but not limited, epithelial-to-mesenchymal transitions, fibrosis and adipogenesis. An exploration of cellular changes in the thymus at various stages of life, including mouse models of in-born errors of immunity and with single cell RNA sequencing, is revealing an expanding number of distinct cell types influencing thymus functions. The thymus microenvironment, established through interactions between immature and mature thymocytes with thymus epithelial cells (TEC), is well known. Less well appreciated are the contributions of neural crest cell-derived mesenchymal cells, endothelial cells, diverse hematopoietic cell populations, adipocytes, and fibroblasts in the thymic microenvironment. In the current review, we will explore the contributions of the many stromal cell types participating in the formation, expansion, and contraction of the thymus under normal and pathophysiological processes. Such information will better inform approaches for restoring thymus functionality, including thymus organoid technologies, beneficial when an individuals’ own tissue is congenitally, clinically, or accidentally rendered non-functional.
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Affiliation(s)
- Pratibha Bhalla
- Department of Immunology, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Dong-Ming Su
- Department of Microbiology, Immunology & Genetics, The University of North Texas Health Sciences Center, Fort Worth, TX, United States
| | - Nicolai S C van Oers
- Department of Immunology, The University of Texas Southwestern Medical Center, Dallas, TX, United States.,Department of Microbiology, The University of Texas Southwestern Medical Center, Dallas, TX, United States.,Department of Pediatrics, The University of Texas Southwestern Medical Center, Dallas, TX, United States
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6
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Hirano KI, Hosokawa H, Yahata T, Ando K, Tanaka M, Imai J, Yazawa M, Ohtsuka M, Negishi N, Habu S, Sato T, Hozumi K. Dll1 Can Function as a Ligand of Notch1 and Notch2 in the Thymic Epithelium. Front Immunol 2022; 13:852427. [PMID: 35371023 PMCID: PMC8968733 DOI: 10.3389/fimmu.2022.852427] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/22/2022] [Indexed: 11/30/2022] Open
Abstract
T-cell development in the thymus is dependent on Notch signaling induced by the interaction of Notch1, present on immigrant cells, with a Notch ligand, delta-like (Dll) 4, on the thymic epithelial cells. Phylogenetic analysis characterizing the properties of the Dll4 molecule suggests that Dll4 emerged from the common ancestor of lobe- and ray-finned fishes and diverged into bony fishes and terrestrial organisms, including mammals. The thymus evolved in cartilaginous fishes before Dll4, suggesting that T-cell development in cartilaginous fishes is dependent on Dll1 instead of Dll4. In this study, we compared the function of both Dll molecules in the thymic epithelium using Foxn1-cre and Dll4-floxed mice with conditional transgenic alleles in which the Dll1 or Dll4 gene is transcribed after the cre-mediated excision of the stop codon. The expression of Dll1 in the thymic epithelium completely restored the defect in the Dll4-deficient condition, suggesting that Dll1 can trigger Notch signaling that is indispensable for T-cell development in the thymus. Moreover, using bone marrow chimeras with Notch1- or Notch2-deficient hematopoietic cells, we showed that Dll1 is able to activate Notch signaling, which is sufficient to induce T-cell development, with both the receptors, in contrast to Dll4, which works only with Notch1, in the thymic environment. These results strongly support the hypothesis that Dll1 regulates T-cell development via Notch1 and/or Notch2 in the thymus of cartilaginous fishes and that Dll4 has replaced Dll1 in inducing thymic Notch signaling via Notch1 during evolution.
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Affiliation(s)
- Ken-ichi Hirano
- Department of Immunology, Tokai University School of Medicine, Isehara, Japan
| | - Hiroyuki Hosokawa
- Department of Immunology, Tokai University School of Medicine, Isehara, Japan
- Institute of Medical Sciences, Tokai University, Isehara, Japan
| | - Takashi Yahata
- Institute of Medical Sciences, Tokai University, Isehara, Japan
- Department of Innovative Medical Science, Tokai University School of Medicine, Isehara, Japan
| | - Kiyoshi Ando
- Institute of Medical Sciences, Tokai University, Isehara, Japan
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Masayuki Tanaka
- Support Center of Medical Research and Education, Tokai University School of Medicine, Isehara, Japan
| | - Jin Imai
- Divison of Gastroenterology and Hepatology, Tokai University School of Medicine, Isehara, Japan
| | - Masaki Yazawa
- Department of Immunology, Tokai University School of Medicine, Isehara, Japan
| | - Masato Ohtsuka
- Institute of Medical Sciences, Tokai University, Isehara, Japan
- Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Japan
| | - Naoko Negishi
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Sonoko Habu
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Takehito Sato
- Department of Immunology, Tokai University School of Medicine, Isehara, Japan
| | - Katsuto Hozumi
- Department of Immunology, Tokai University School of Medicine, Isehara, Japan
- *Correspondence: Katsuto Hozumi,
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7
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Hirano KI, Hosokawa H, Koizumi M, Endo Y, Yahata T, Ando K, Hozumi K. LMO2 is essential to maintain the ability of progenitors to differentiate into T-cell lineage in mice. eLife 2021; 10:e68227. [PMID: 34382935 PMCID: PMC8360648 DOI: 10.7554/elife.68227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/31/2021] [Indexed: 12/20/2022] Open
Abstract
Notch signaling primarily determines T-cell fate. However, the molecular mechanisms underlying the maintenance of T-lineage potential in pre-thymic progenitors remain unclear. Here, we established two murine Ebf1-deficient pro-B cell lines, with and without T-lineage potential. The latter expressed lower levels of Lmo2; their potential was restored via ectopic expression of Lmo2. Conversely, the CRISPR/Cas9-mediated deletion of Lmo2 resulted in the loss of the T-lineage potential. Introduction of Bcl2 rescued massive cell death of Notch-stimulated pro-B cells without efficient LMO2-driven Bcl11a expression but was not sufficient to retain their T-lineage potential. Pro-B cells without T-lineage potential failed to activate Tcf7 due to DNA methylation; Tcf7 transduction restored this capacity. Moreover, direct binding of LMO2 to the Bcl11a and Tcf7 loci was observed. Altogether, our results highlight LMO2 as a crucial player in the survival and maintenance of T-lineage potential in T-cell progenitors via the regulation of the expression of Bcl11a and Tcf7.
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Affiliation(s)
- Ken-ichi Hirano
- Department of Immunology, Tokai University School of MedicineIseharaJapan
| | - Hiroyuki Hosokawa
- Department of Immunology, Tokai University School of MedicineIseharaJapan
- Institute of Medical Sciences, Tokai UniversityIseharaJapan
| | - Maria Koizumi
- Department of Immunology, Tokai University School of MedicineIseharaJapan
| | - Yusuke Endo
- Laboratory of Medical Omics Research, Kazusa DNA Research InstituteKisarazuJapan
- Department of Omics Medicine, Graduate School of Medicine, Chiba UniversityChibaJapan
| | - Takashi Yahata
- Institute of Medical Sciences, Tokai UniversityIseharaJapan
- Department of Innovative Medical Science, Tokai University School of MedicineIseharaJapan
| | - Kiyoshi Ando
- Institute of Medical Sciences, Tokai UniversityIseharaJapan
- Department of Hematology and Oncology, Tokai University School of MedicineIseharaJapan
| | - Katsuto Hozumi
- Department of Immunology, Tokai University School of MedicineIseharaJapan
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8
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Yazawa M, Hosokawa H, Koizumi M, Hirano KI, Imai J, Hozumi K. Notch signaling supports the appearance of follicular helper T cells in the Peyer's patches concomitantly with the reduction of regulatory T cells. Int Immunol 2021; 33:469-478. [PMID: 34147033 DOI: 10.1093/intimm/dxab032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/16/2021] [Indexed: 12/22/2022] Open
Abstract
The intracellular fragment of Notch1, a mediator of Notch signaling that is frequently detected in thymic immigrants, is critical for specifying T cell fate in the thymus, where Delta-like 4 (Dll4) functions as a Notch ligand on the epithelium. However, as such Notch signaling has not been detected in mature T cells, how Notch signaling contributes to their response in secondary lymphoid organs has not yet been fully defined. Here, we detected the marked expression of Dll4 on the stromal cells and the active fragment of Notch1 (Notch1 intracellular domain, N1ICD) in CD4 + T cells in the follicle of Peyer's patches (PPs). In addition, N1ICD-bearing T cells were also found in the T-cell zone of PP, especially in the transcription factor Foxp3 + regulatory T (Treg) cells, with slight expression of Dll4 on the stromal cells. These fragments disappeared in Dll4-deficient conditions. It was also found that Notch1- and Notch2-deficient T cells preferentially differentiated into Treg cells in PPs, but not CXCR5 +PD-1 + follicular helper T (Tfh) cells. Moreover, these phenotypes were also observed in chimeric mice reconstituted with the control and T cell-specific Notch1/2-deficient bone marrow or Treg cells. These results demonstrated that Dll4-mediated Notch signaling in PPs is required for the efficient appearance of Tfh cells in a Treg cell-prone environment, which is common among the gut-associated lymphoid tissues, and is critical for the generation of Tfh-mediated germinal center B cells.
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Affiliation(s)
- Masaki Yazawa
- Department of Immunology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Hiroyuki Hosokawa
- Department of Immunology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Maria Koizumi
- Department of Immunology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Ken-Ichi Hirano
- Department of Immunology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Jin Imai
- Department of Gastroenterology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Katsuto Hozumi
- Department of Immunology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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9
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Saiki W, Ma C, Okajima T, Takeuchi H. Current Views on the Roles of O-Glycosylation in Controlling Notch-Ligand Interactions. Biomolecules 2021; 11:biom11020309. [PMID: 33670724 PMCID: PMC7922208 DOI: 10.3390/biom11020309] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/12/2022] Open
Abstract
The 100th anniversary of Notch discovery in Drosophila has recently passed. The Notch is evolutionarily conserved from Drosophila to humans. The discovery of human-specific Notch genes has led to a better understanding of Notch signaling in development and diseases and will continue to stimulate further research in the future. Notch receptors are responsible for cell-to-cell signaling. They are activated by cell-surface ligands located on adjacent cells. Notch activation plays an important role in determining the fate of cells, and dysregulation of Notch signaling results in numerous human diseases. Notch receptors are primarily activated by ligand binding. Many studies in various fields including genetics, developmental biology, biochemistry, and structural biology conducted over the past two decades have revealed that the activation of the Notch receptor is regulated by unique glycan modifications. Such modifications include O-fucose, O-glucose, and O-N-acetylglucosamine (GlcNAc) on epidermal growth factor-like (EGF) repeats located consecutively in the extracellular domain of Notch receptors. Being fine-tuned by glycans is an important property of Notch receptors. In this review article, we summarize the latest findings on the regulation of Notch activation by glycosylation and discuss future challenges.
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Affiliation(s)
- Wataru Saiki
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; (W.S.); (C.M.); (T.O.)
| | - Chenyu Ma
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; (W.S.); (C.M.); (T.O.)
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; (W.S.); (C.M.); (T.O.)
- Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Hideyuki Takeuchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; (W.S.); (C.M.); (T.O.)
- Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Aichi 464-8601, Japan
- Correspondence: ; Tel.: +81-52-744-2068
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Lee HY, Hong IS. Targeting Liver Cancer Stem Cells: An Alternative Therapeutic Approach for Liver Cancer. Cancers (Basel) 2020; 12:cancers12102746. [PMID: 32987767 PMCID: PMC7598600 DOI: 10.3390/cancers12102746] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 12/12/2022] Open
Abstract
The first report of cancer stem cell (CSC) from Bruce et al. has demonstrated the relatively rare population of stem-like cells in acute myeloid leukemia (AML). The discovery of leukemic CSCs prompted further identification of CSCs in multiple types of solid tumor. Recently, extensive research has attempted to identity CSCs in multiple types of solid tumors in the brain, colon, head and neck, liver, and lung. Based on these studies, we hypothesize that the initiation and progression of most malignant tumors rely largely on the CSC population. Recent studies indicated that stem cell-related markers or signaling pathways, such as aldehyde dehydrogenase (ALDH), CD133, epithelial cell adhesion molecule (EpCAM), Wnt/β-catenin signaling, and Notch signaling, contribute to the initiation and progression of various liver cancer types. Importantly, CSCs are markedly resistant to conventional therapeutic approaches and current targeted therapeutics. Therefore, it is believed that selectively targeting specific markers and/or signaling pathways of hepatic CSCs is an effective therapeutic strategy for treating chemotherapy-resistant liver cancer. Here, we provide an overview of the current knowledge on the hepatic CSC hypothesis and discuss the specific surface markers and critical signaling pathways involved in the development and maintenance of hepatic CSC subpopulations.
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Affiliation(s)
- Hwa-Yong Lee
- Department of Biomedical Science, Jungwon University, 85 Goesan-eup, Munmu-ro, Goesan-gun, Chungcheongbuk-do 367700, Korea;
| | - In-Sun Hong
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Korea
- Department of Molecular Medicine, School of Medicine, Gachon University, Incheon 406840, Korea
- Correspondence: ; Tel.: +82-32-899-6315; Fax: +82-32-899-6350
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