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Serrano G, Berastegui N, Díaz-Mazkiaran A, García-Olloqui P, Rodriguez-Res C, Huerga-Dominguez S, Ainciburu M, Vilas-Zornoza A, Martin-Uriz PS, Aguirre-Ruiz P, Ullate-Agote A, Ariceta B, Lamo-Espinosa JM, Acha P, Calvete O, Jimenez T, Molero A, Montoro MJ, Díez-Campelo M, Valcarcel D, Solé F, Alfonso-Pierola A, Ochoa I, Prósper F, Ezponda T, Hernaez M. Single-cell transcriptional profile of CD34+ hematopoietic progenitor cells from del(5q) myelodysplastic syndromes and impact of lenalidomide. Nat Commun 2024; 15:5272. [PMID: 38902243 PMCID: PMC11189937 DOI: 10.1038/s41467-024-49529-x] [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: 11/01/2023] [Accepted: 06/06/2024] [Indexed: 06/22/2024] Open
Abstract
While myelodysplastic syndromes with del(5q) (del(5q) MDS) comprises a well-defined hematological subgroup, the molecular basis underlying its origin remains unknown. Using single cell RNA-seq (scRNA-seq) on CD34+ progenitors from del(5q) MDS patients, we have identified cells harboring the deletion, characterizing the transcriptional impact of this genetic insult on disease pathogenesis and treatment response. Interestingly, both del(5q) and non-del(5q) cells present similar transcriptional lesions, indicating that all cells, and not only those harboring the deletion, may contribute to aberrant hematopoietic differentiation. However, gene regulatory network (GRN) analyses reveal a group of regulons showing aberrant activity that could trigger altered hematopoiesis exclusively in del(5q) cells, pointing to a more prominent role of these cells in disease phenotype. In del(5q) MDS patients achieving hematological response upon lenalidomide treatment, the drug reverts several transcriptional alterations in both del(5q) and non-del(5q) cells, but other lesions remain, which may be responsible for potential future relapses. Moreover, lack of hematological response is associated with the inability of lenalidomide to reverse transcriptional alterations. Collectively, this study reveals transcriptional alterations that could contribute to the pathogenesis and treatment response of del(5q) MDS.
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Affiliation(s)
- Guillermo Serrano
- Computational Biology Program CIMA-Universidad de Navarra, Cancer Center Clínica Universidad de Navarra (CCUN), IdISNA, Pamplona, Spain
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Nerea Berastegui
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | - Aintzane Díaz-Mazkiaran
- Computational Biology Program CIMA-Universidad de Navarra, Cancer Center Clínica Universidad de Navarra (CCUN), IdISNA, Pamplona, Spain
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | - Paula García-Olloqui
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | - Carmen Rodriguez-Res
- Computational Biology Program CIMA-Universidad de Navarra, Cancer Center Clínica Universidad de Navarra (CCUN), IdISNA, Pamplona, Spain
| | - Sofia Huerga-Dominguez
- Hematology and Cell Therapy Service, Cancer Center Clínica Universidad de Navarra (CCUN), IdISNA, Pamplona, Spain
| | - Marina Ainciburu
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | - Amaia Vilas-Zornoza
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | - Patxi San Martin-Uriz
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
| | - Paula Aguirre-Ruiz
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
| | - Asier Ullate-Agote
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
| | - Beñat Ariceta
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | | | - Pamela Acha
- MDS Research Group, Josep Carreras Leukaemia Research Institut, Universitat Autònoma de Barcelona, Barcelona, Spain
- Service of Hematology, Hospital Universitari Vall d'Hebron, Barcelona; Vall d'Hebron Instituto de Oncología (VHIO), Barcelona, Spain
| | - Oriol Calvete
- MDS Research Group, Josep Carreras Leukaemia Research Institut, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Tamara Jimenez
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
- Department of Hematology, Hospital Universitario de Salamanca-IBSAL, Salamanca, Spain
| | - Antonieta Molero
- Service of Hematology, Hospital Universitari Vall d'Hebron, Barcelona; Vall d'Hebron Instituto de Oncología (VHIO), Barcelona, Spain
| | - Maria Julia Montoro
- Service of Hematology, Hospital Universitari Vall d'Hebron, Barcelona; Vall d'Hebron Instituto de Oncología (VHIO), Barcelona, Spain
| | - Maria Díez-Campelo
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
- Department of Hematology, Hospital Universitario de Salamanca-IBSAL, Salamanca, Spain
| | - David Valcarcel
- Service of Hematology, Hospital Universitari Vall d'Hebron, Barcelona; Vall d'Hebron Instituto de Oncología (VHIO), Barcelona, Spain
| | - Francisco Solé
- MDS Research Group, Josep Carreras Leukaemia Research Institut, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ana Alfonso-Pierola
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
- Hematology and Cell Therapy Service, Cancer Center Clínica Universidad de Navarra (CCUN), IdISNA, Pamplona, Spain
| | - Idoia Ochoa
- Instituto de Ciencia de los Datos e Inteligencia Artificial (DATAI), University of Navarra, Pamplona, Spain
- Department of Electrical and Electronics engineering, School of Engineering (Tecnun), University of Navarra, Donostia, Spain
| | - Felipe Prósper
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain.
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain.
- Hematology and Cell Therapy Service, Cancer Center Clínica Universidad de Navarra (CCUN), IdISNA, Pamplona, Spain.
| | - Teresa Ezponda
- Hematology-Oncology Program, CIMA, Cancer Center Clínica Universidad de Navarra (CCUN), IdiSNA, Pamplona, Spain.
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain.
| | - Mikel Hernaez
- Computational Biology Program CIMA-Universidad de Navarra, Cancer Center Clínica Universidad de Navarra (CCUN), IdISNA, Pamplona, Spain.
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain.
- Instituto de Ciencia de los Datos e Inteligencia Artificial (DATAI), University of Navarra, Pamplona, Spain.
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Kim M, Kruhlak M, Hoffmann V, Zerfas P, Bishop K, Doolittle WKL, Edmondson EF, Zhu YJ, Cheng SY. Morphological and Functional Colonic Defects Caused by a Mutated Thyroid Hormone Receptor α. Thyroid 2023; 33:239-250. [PMID: 36103385 PMCID: PMC10081711 DOI: 10.1089/thy.2022.0336] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Background: Mutations of thyroid hormone receptor α (TRα1) result in resistance to thyroid hormone (RTHα), exhibiting symptoms of retarded growth, delayed bone maturation, anemia, and severe constipation. Using a mouse model of RTHα (Thra1PV/+ mouse), we aimed at understanding the molecular basis underlying the severe constipation observed in patients. Methods: The Thra1PV/+ mouse expresses a strong dominant negative mutant, PV, which has lost T3 binding and transcription activity. Thra1PV/+ mouse faithfully reproduces growth abnormalities and anemia as shown in RTHα patients and therefore is a valid model to examine causes of severe constipation in patients. We used histopathological analysis, confocal fluorescence imaging, transmission electron microscopy (TEM), and gene expression profiles to comprehensively analyze the colonic abnormalities of Thra1PV/+ mouse. Results: We found a significant increase in colonic transit time and decrease stool water content in Thra1PV/+ mouse, mimicking constipation as found in patients. Histopathological analysis showed expanded lamina propria filled with interstitium fluid between crypt columns, enlarged muscularis mucosa, and increased content of collagen in expanded submucosa. The TEM analysis revealed shorter muscle fibers with wider gap junctions between muscle cells, fewer caveolae, and hypoplastic interstitial cells of Cajal (ICC) in the rectal smooth muscles of Thra1PV/+ mice. These abnormal histological manifestations suggested defective intercellular transfer of small molecules, electrolytes, and signals for communication among muscles cells, validated by Lucifer Yellow transferring assays. Expression of key smooth muscle contractility regulators, such as calmodulin, myosin light-chain kinase, and phosphorylated myosin light chain, was markedly lower, and c-KIT signaling in ICC was attenuated, resulting in decreased contractility of the rectal smooth muscles of Thra1PV/+ mice. Collectively, these abnormal histopathological alterations and diminished contractility regulators led to the constipation exhibited in patients. Conclusions: This is the first demonstration that TRα1 mutants could act to cause abnormal rectum smooth muscle organization, defects in intercellular exchange of small molecules, and decreased expression of contractility regulators to weaken the contractility of rectal smooth muscles. These findings provide new insights into the molecular basis underlying constipation found in RTHα patients.
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Affiliation(s)
- Minjun Kim
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Michael Kruhlak
- Laboratory of Cancer Biology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Victoria Hoffmann
- Office of Research Services, Diagnostic and Research Services Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Patricia Zerfas
- Office of Research Services, Diagnostic and Research Services Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Kevin Bishop
- Translational and Functional Genomics Branch, National Human Genome Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Woo Kyung Lee Doolittle
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Elijah F. Edmondson
- Molecular Histopathology Laboratory, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Yuelin Jack Zhu
- Laboratory of Cancer Biology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Sheue-yann Cheng
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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Han CR, Wang H, Hoffmann V, Zerfas P, Kruhlak M, Cheng SY. Thyroid Hormone Receptor α Mutations Cause Heart Defects in Zebrafish. Thyroid 2021; 31:315-326. [PMID: 32762296 PMCID: PMC7891307 DOI: 10.1089/thy.2020.0332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background: Mutations of thyroid hormone receptor α1 (TRα1) cause resistance to thyroid hormone (RTHα). Patients exhibit growth retardation, delayed bone development, anemia, and bradycardia. By using mouse models of RTHα, much has been learned about the molecular actions of TRα1 mutants that underlie these abnormalities in adults. Using zebrafish models of RTHα that we have recently created, we aimed to understand how TRα1 mutants affect the heart function during this period. Methods: In contrast to human and mice, the thra gene is duplicated, thraa and thrab, in zebrafish. Using CRISPR/Cas9-mediated targeted mutagenesis, we created C-terminal mutations in each of two duplicated thra genes in zebrafish (thraa 8-bp insertion or thrab 1-bp insertion mutations). We recently showed that these mutant fish faithfully recapitulated growth retardation as found in patients and thra mutant mice. In the present study, we used histological analysis, gene expression profiles, confocal fluorescence, and transmission electron microscopy (TEM) to comprehensively analyze the phenotypic characteristics of mutant fish heart during development. Results: We found both a dilated atrium and an abnormally shaped ventricle in adult mutant fish. The retention of red blood cells in the two abnormal heart chambers, and the decreased circulating blood speed and reduced expression of contractile genes indicated weakened contractility in the heart of mutant fish. These abnormalities were detected in mutant fish as early as 35 days postfertilization (juveniles). Furthermore, the expression of genes associated with the sarcomere assembly was suppressed in the heart of mutant fish, resulting in abnormalities of sarcomere organization as revealed by TEM, suggesting that the abnormal sarcomere organization could underlie the bradycardia exhibited in mutant fish. Conclusions: Using a zebrafish model of RTHα, the present study demonstrated for the first time that TRα1 mutants could act to cause abnormal heart structure, weaken contractility, and disrupt sarcomere organization that affect heart functions. These findings provide new insights into the bradycardia found in RTHα patients.
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Affiliation(s)
- Cho Rong Han
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Hui Wang
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Victoria Hoffmann
- Diagnostic and Research Services Branch, Office of Research Services, National Institutes of Health, Bethesda, Maryland, USA
| | - Patricia Zerfas
- Diagnostic and Research Services Branch, Office of Research Services, National Institutes of Health, Bethesda, Maryland, USA
| | - Michael Kruhlak
- Laboratory of Cancer Biology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Sheue-Yann Cheng
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
- Address correspondence to: Sheue-Yann Cheng, PhD, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Room 5128, Bethesda, MD 20892-4264, USA
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Bao L, Roediger J, Park S, Fu L, Shi B, Cheng SY, Shi YB. Thyroid Hormone Receptor Alpha Mutations Lead to Epithelial Defects in the Adult Intestine in a Mouse Model of Resistance to Thyroid Hormone. Thyroid 2019; 29:439-448. [PMID: 30595106 PMCID: PMC6437623 DOI: 10.1089/thy.2018.0340] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The thyroid hormone triiodothyronine (T3) is critical for vertebrate development and affects the function of many adult tissues and organs. Its genomic effects are mediated by thyroid hormone nuclear receptors (TRs) present in all vertebrates. The discovery of patients with resistance to thyroid hormone (RTHβ) >50 years ago and subsequent identification of genetic mutations in only the THRB gene in these patients suggest that mutations in the THRA gene may have different pathological manifestations in humans. Indeed, the recent discovery of a number of human patients carrying heterozygous mutations in the THRA gene (RTHα) revealed a distinct phenotype that was not observed in RTH patients with THRB gene mutations (RTHβ). That is, RTHα patients have constipation, implicating intestinal defects caused by THRA gene mutations. METHODS To determine how TRα1 mutations affect the intestine, this study analyzed a mutant mouse expressing a strong dominantly negative TRα1 mutant (denoted TRα1PV; Thra1PV mice). This mutant mouse faithfully reproduces RTHα phenotypes observed in patients. RESULTS In adult Thra1PV/+ mice, constipation was observed just like in patients with TRα mutations. Importantly, significant intestinal defects were discovered, including shorter villi and increased differentiated cells in the crypt, accompanied by reduced stem-cell proliferation in the intestine. CONCLUSIONS The findings suggest that further analysis of this mouse model should help to reveal the molecular and physiological defects in the intestine caused by TRα mutations and to determine the underlying mechanisms.
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Affiliation(s)
- Lingyu Bao
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, P.R. China
- Section on Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD); Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute (NCI); National Institutes of Health, Bethesda, Maryland
| | - Julia Roediger
- Section on Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD); Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute (NCI); National Institutes of Health, Bethesda, Maryland
| | - Sunmi Park
- Gene Regulation Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute (NCI); National Institutes of Health, Bethesda, Maryland
| | - Liezhen Fu
- Section on Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD); Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute (NCI); National Institutes of Health, Bethesda, Maryland
| | - Bingyin Shi
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, P.R. China
| | - Sheue-Yann Cheng
- Gene Regulation Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute (NCI); National Institutes of Health, Bethesda, Maryland
| | - Yun-Bo Shi
- Section on Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD); Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute (NCI); National Institutes of Health, Bethesda, Maryland
- Address correspondence to: Yun-Bo Shi, PhD, Section on Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Building 49 Room 6A82, Bethesda, MD 20892
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