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Velasco‐Hernandez T, Trincado JL, Vinyoles M, Closa A, Martínez‐Moreno A, Gutiérrez‐Agüera F, Molina O, Rodríguez‐Cortez VC, Ximeno‐Parpal P, Fernández‐Fuentes N, Petazzi P, Beneyto‐Calabuig S, Velten L, Romecin P, Casquero R, Abollo‐Jiménez F, de la Guardia RD, Lorden P, Bataller A, Lapillonne H, Stam RW, Vives S, Torrebadell M, Fuster JL, Bueno C, Sarry J, Eyras E, Heyn H, Menéndez P. Integrative single-cell expression and functional studies unravels a sensitization to cytarabine-based chemotherapy through HIF pathway inhibition in AML leukemia stem cells. Hemasphere 2024; 8:e45. [PMID: 38435427 PMCID: PMC10895904 DOI: 10.1002/hem3.45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/11/2023] [Accepted: 01/13/2024] [Indexed: 03/05/2024] Open
Abstract
Relapse remains a major challenge in the clinical management of acute myeloid leukemia (AML) and is driven by rare therapy-resistant leukemia stem cells (LSCs) that reside in specific bone marrow niches. Hypoxia signaling maintains cells in a quiescent and metabolically relaxed state, desensitizing them to chemotherapy. This suggests the hypothesis that hypoxia contributes to the chemoresistance of AML-LSCs and may represent a therapeutic target to sensitize AML-LSCs to chemotherapy. Here, we identify HIFhigh and HIFlow specific AML subgroups (inv(16)/t(8;21) and MLLr, respectively) and provide a comprehensive single-cell expression atlas of 119,000 AML cells and AML-LSCs in paired diagnostic-relapse samples from these molecular subgroups. The HIF/hypoxia pathway signature is attenuated in AML-LSCs compared with more differentiated AML cells but is more expressed than in healthy hematopoietic cells. Importantly, chemical inhibition of HIF cooperates with standard-of-care chemotherapy to impair AML growth and to substantially eliminate AML-LSCs in vitro and in vivo. These findings support the HIF pathway in the stem cell-driven drug resistance of AML and unravel avenues for combinatorial targeted and chemotherapy-based approaches to specifically eliminate AML-LSCs.
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Affiliation(s)
- Talia Velasco‐Hernandez
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
| | - Juan L. Trincado
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
| | - Meritxell Vinyoles
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
| | - Adria Closa
- The John Curtin School of Medical ResearchThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
- EMBL Australia Partner Laboratory Network at the Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | | | | | - Oscar Molina
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
| | - Virginia C. Rodríguez‐Cortez
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
| | | | | | - Paolo Petazzi
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
| | - Sergi Beneyto‐Calabuig
- Centre for Genomic Regulation (CRG)The Barcelona Institute of Science and TechnologyBarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
| | - Lars Velten
- Centre for Genomic Regulation (CRG)The Barcelona Institute of Science and TechnologyBarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
| | - Paola Romecin
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
| | | | | | - Rafael D. de la Guardia
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- GENYO, Center for Genomics and Oncological ResearchPfizer/Universidad de Granada/Junta de AndalucíaGranadaSpain
| | - Patricia Lorden
- CNAG‐CRG, Centre for Genomic Regulation (CRG)Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
| | - Alex Bataller
- Department of HematologyHospital Clínic de BarcelonaBarcelonaSpain
| | - Hélène Lapillonne
- Centre de Recherce Saint‐AntoineArmand‐Trousseau Childrens HospitalParisFrance
| | - Ronald W. Stam
- Princess Maxima Center for Pediatric OncologyUtrechtThe Netherlands
| | - Susana Vives
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Hematology DepartmentICO‐Hospital Germans Trias i PujolBarcelonaSpain
| | - Montserrat Torrebadell
- Hematology LaboratoryHospital Sant Joan de DéuBarcelonaSpain
- Leukemia and Other Pediatric Hemopathies. Developmental Tumors Biology Group. Institut de Recerca Hospital Sant Joan de DéuBarcelonaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER) ISCIIIMadridSpain
| | - Jose L. Fuster
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
- Sección de Oncohematología PediátricaHospital Clínico Universitario Virgen de la Arrixaca and Instituto Murciano de Investigación Biosanitaria (IMIB)MurciaSpain
| | - Clara Bueno
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
- CIBER‐ONCBarcelonaSpain
| | - Jean‐Emmanuel Sarry
- Centre de Recherches en Cancérologie de ToulouseUniversité de ToulouseInserm U1037, CNRS U5077ToulouseFrance
- LabEx ToucanToulouseFrance
- Équipe Labellisée Ligue Nationale Contre le CancerToulouseFrance
| | - Eduardo Eyras
- The John Curtin School of Medical ResearchThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
- EMBL Australia Partner Laboratory Network at the Australian National UniversityCanberraAustralian Capital TerritoryAustralia
- Hospital del Mar Medical Research Institute (IMIM)BarcelonaSpain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)BarcelonaSpain
| | - Holger Heyn
- CNAG‐CRG, Centre for Genomic Regulation (CRG)Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
| | - Pablo Menéndez
- Josep Carreras Leukemia Research InstituteBarcelonaSpain
- Red Española de Terapias Avanzadas (TERAV)‐Instituto de Salud Carlos III (ISCIII) (RICORS, RD21/0017/0029)MadridSpain
- CIBER‐ONCBarcelonaSpain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)BarcelonaSpain
- Department of Biomedicine, School of MedicineUniversity of BarcelonaBarcelonaSpain
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Díez-Villanueva A, Sanz-Pamplona R, Solé X, Cordero D, Crous-Bou M, Guinó E, Lopez-Doriga A, Berenguer A, Aussó S, Paré-Brunet L, Obón-Santacana M, Moratalla-Navarro F, Salazar R, Sanjuan X, Santos C, Biondo S, Diez-Obrero V, Garcia-Serrano A, Alonso MH, Carreras-Torres R, Closa A, Moreno V. COLONOMICS - integrative omics data of one hundred paired normal-tumoral samples from colon cancer patients. Sci Data 2022; 9:595. [PMID: 36182938 PMCID: PMC9526730 DOI: 10.1038/s41597-022-01697-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/16/2022] [Indexed: 11/29/2022] Open
Abstract
Colonomics is a multi-omics dataset that includes 250 samples: 50 samples from healthy colon mucosa donors and 100 paired samples from colon cancer patients (tumor/adjacent). From these samples, Colonomics project includes data from genotyping, DNA methylation, gene expression, whole exome sequencing and micro-RNAs (miRNAs) expression. It also includes data from copy number variation (CNV) from tumoral samples. In addition, clinical data from all these samples is available. The aims of the project were to explore and integrate these datasets to describe colon cancer at molecular level and to compare normal and tumoral tissues. Also, to improve screening by finding biomarkers for the diagnosis and prognosis of colon cancer. This project has its own website including four browsers allowing users to explore Colonomics datasets. Since generated data could be reuse for the scientific community for exploratory or validation purposes, here we describe omics datasets included in the Colonomics project as well as results from multi-omics layers integration.
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Affiliation(s)
- Anna Díez-Villanueva
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Rebeca Sanz-Pamplona
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Xavier Solé
- Molecular Biology CORE, Center for Biomedical Diagnostics, Hospital Clínic de Barcelona, 08036, Barcelona, Spain
- Translational Genomic and Targeted Therapeutics in Solid Tumors, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036, Barcelona, Spain
| | - David Cordero
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Marta Crous-Bou
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) - Bellvitge Biomedical Research Institute (IDIBELL). L'Hospitalet de Llobregat, Barcelona, 08908, Spain
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Elisabet Guinó
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Adriana Lopez-Doriga
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Antoni Berenguer
- Rheumatology Department - Parc Taulí Research and Innovation Institute (I3PT), Barcelona, Spain
| | - Susanna Aussó
- TIC Salut Social Foundation. Ministry of Health of Generalitat de Catalunya, Barcelona, Spain
| | | | - Mireia Obón-Santacana
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Ferran Moratalla-Navarro
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine and health Sciences and Universitat de Barcelona Institute of Complex Systems (UBICS), University of Barcelona, Barcelona, Spain
| | - Ramon Salazar
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Department of Clinical Sciences, Faculty of Medicine and health Sciences and Universitat de Barcelona Institute of Complex Systems (UBICS), University of Barcelona, Barcelona, Spain
- Medical Oncology Department. Catalan Institute of Oncology (ICO), Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Oncology (CIBERONC), Madrid, Spain
| | - Xavier Sanjuan
- Department of Clinical Sciences, Faculty of Medicine and health Sciences and Universitat de Barcelona Institute of Complex Systems (UBICS), University of Barcelona, Barcelona, Spain
- Pathology Service, Bellvitge University Hospital (HUB), Hospitalet de Llobregat, Barcelona, Spain
| | - Cristina Santos
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Department of Clinical Sciences, Faculty of Medicine and health Sciences and Universitat de Barcelona Institute of Complex Systems (UBICS), University of Barcelona, Barcelona, Spain
- Medical Oncology Department. Catalan Institute of Oncology (ICO), Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Oncology (CIBERONC), Madrid, Spain
| | - Sebastiano Biondo
- Department of Clinical Sciences, Faculty of Medicine and health Sciences and Universitat de Barcelona Institute of Complex Systems (UBICS), University of Barcelona, Barcelona, Spain
- Digestive Surgery Service, Bellvitge University Hospital (HUB). Hospitalet de Llobregat, Barcelona, Spain
| | - Virginia Diez-Obrero
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
| | - Ainhoa Garcia-Serrano
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Maria Henar Alonso
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine and health Sciences and Universitat de Barcelona Institute of Complex Systems (UBICS), University of Barcelona, Barcelona, Spain
| | - Robert Carreras-Torres
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Adria Closa
- The John Curtin School of Medical Research, Australian National University, Canberra, Australia
- EMBL Australia Partner Laboratory Network at the Australian National University, Canberra, Australia
| | - Víctor Moreno
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO). Hospitalet de Llobregat, Barcelona, Spain.
- Colorectal Cancer Group, ONCOBELL, Bellvitge Biomedical Research Institute (IDIBELL). Hospitalet de Llobregat, Barcelona, Spain.
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain.
- Department of Clinical Sciences, Faculty of Medicine and health Sciences and Universitat de Barcelona Institute of Complex Systems (UBICS), University of Barcelona, Barcelona, Spain.
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3
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Closa A, Reixachs-Solé M, Fuentes-Fayos AC, Hayer K, Melero J, Adriaanse FRS, Bos R, Torres-Diz M, Hunger S, Roberts K, Mullighan C, Stam R, Thomas-Tikhonenko A, Castaño J, Luque R, Eyras E. A convergent malignant phenotype in B-cell acute lymphoblastic leukemia involving the splicing factor SRRM1. NAR Cancer 2022; 4:zcac041. [DOI: 10.1093/narcan/zcac041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/09/2022] [Accepted: 11/25/2022] [Indexed: 12/13/2022] Open
Abstract
Abstract
A significant proportion of infant B-cell acute lymphoblastic leukemia (B-ALL) patients remains with a dismal prognosis due to yet undetermined mechanisms. We performed a comprehensive multicohort analysis of gene expression, gene fusions, and RNA splicing alterations to uncover molecular signatures potentially linked to the observed poor outcome. We identified 87 fusions with significant allele frequency across patients and shared functional impacts, suggesting common mechanisms across fusions. We further identified a gene expression signature that predicts high risk independently of the gene fusion background and includes the upregulation of the splicing factor SRRM1. Experiments in B-ALL cell lines provided further evidence for the role of SRRM1 on cell survival, proliferation, and invasion. Supplementary analysis revealed that SRRM1 potentially modulates splicing events associated with poor outcomes through protein-protein interactions with other splicing factors. Our findings reveal a potential convergent mechanism of aberrant RNA processing that sustains a malignant phenotype independently of the underlying gene fusion and that could potentially complement current clinical strategies in infant B-ALL.
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Affiliation(s)
- Adria Closa
- The Shine-Dalgarno Centre for RNA Innovation, John Curtin School of Medical Research, Australian National University , Canberra, Australia
- Centre for Computational Biomedical Sciences, John Curtin School of Medical Research, Australian National University , Canberra, Australia
- EMBL Australia Partner Laboratory Network at the Australian National University , Canberra, Australia
| | - Marina Reixachs-Solé
- The Shine-Dalgarno Centre for RNA Innovation, John Curtin School of Medical Research, Australian National University , Canberra, Australia
- Centre for Computational Biomedical Sciences, John Curtin School of Medical Research, Australian National University , Canberra, Australia
- EMBL Australia Partner Laboratory Network at the Australian National University , Canberra, Australia
| | - Antonio C Fuentes-Fayos
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC) , Cordoba, Spain
- University of Cordoba (UCO) , Cordoba, Spain
- Reina Sofía University Hospital , Cordoba, Spain
| | - Katharina E Hayer
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia , Philadelphia, USA
| | - Juan L Melero
- The Shine-Dalgarno Centre for RNA Innovation, John Curtin School of Medical Research, Australian National University , Canberra, Australia
- Centre for Computational Biomedical Sciences, John Curtin School of Medical Research, Australian National University , Canberra, Australia
- EMBL Australia Partner Laboratory Network at the Australian National University , Canberra, Australia
| | | | - Romy S Bos
- Princess Máxima Center for Pediatric Oncology , Utrecht, The Netherlands
| | - Manuel Torres-Diz
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia , Philadelphia, USA
| | - Stephen P Hunger
- Division of Oncology, Children's Hospital of Philadelphia , Philadelphia, USA
| | - Kathryn G Roberts
- Department of Pathology, St. Jude Children's Research Hospital , Memphis, USA
| | - Charles G Mullighan
- Department of Pathology, St. Jude Children's Research Hospital , Memphis, USA
| | - Ronald W Stam
- Princess Máxima Center for Pediatric Oncology , Utrecht, The Netherlands
| | - Andrei Thomas-Tikhonenko
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia , Philadelphia, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania , Philadelphia, USA
| | - Justo P Castaño
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC) , Cordoba, Spain
- University of Cordoba (UCO) , Cordoba, Spain
- Reina Sofía University Hospital , Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición , (CIBERobn), Cordoba, Spain
| | - Raúl M Luque
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC) , Cordoba, Spain
- University of Cordoba (UCO) , Cordoba, Spain
- Reina Sofía University Hospital , Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición , (CIBERobn), Cordoba, Spain
| | - Eduardo Eyras
- The Shine-Dalgarno Centre for RNA Innovation, John Curtin School of Medical Research, Australian National University , Canberra, Australia
- Centre for Computational Biomedical Sciences, John Curtin School of Medical Research, Australian National University , Canberra, Australia
- EMBL Australia Partner Laboratory Network at the Australian National University , Canberra, Australia
- Catalan Institution for Research and Advanced Studies (ICREA) , Barcelona, Spain
- Hospital del Mar Medical Research Institute (IMIM) , Barcelona, Spain
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Velasco-Hernandez T, Trincado JL, Vinyoles M, Closa A, Molina O, Velten L, Bueno C, Eyras E, Heyn H, Menendez P. A single-cell expression atlas of human AML-LScs unravels the
contribution of HIF pathway and its therapeutic potential. KLINISCHE PADIATRIE 2022. [DOI: 10.1055/s-0042-1748695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - JL Trincado
- Josep Carreras Leukemia Research Institute, Barcelona,
Spain
| | - M Vinyoles
- Josep Carreras Leukemia Research Institute, Barcelona,
Spain
| | - A Closa
- The Australian National University, Camberra, Australia
| | - O Molina
- Josep Carreras Leukemia Research Institute, Barcelona,
Spain
| | - L Velten
- Centre for Genomic Regulation, Barcelona, Spain
| | - C Bueno
- Josep Carreras Leukemia Research Institute, Barcelona,
Spain
| | - E Eyras
- The Australian National University, Camberra, Australia
| | - H Heyn
- CNAG-CRG, Barcelona, Spain
| | - P Menendez
- Josep Carreras Leukemia Research Institute, Barcelona,
Spain
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Velasco T, Trincado J, Vinyoles M, Closa A, Molina O, Bueno C, Eyras E, Heyn H, Menéndez P. 3215 – A SINGLE-CELL EXPRESSION ATLAS OF HUMAN AML LEUKEMIA-INITIATING CELLS UNRAVELS THE CONTRIBUTION OF HIF PATHWAY AND ITS THERAPEUTIC POTENTIAL. Exp Hematol 2022. [DOI: 10.1016/j.exphem.2022.07.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Closa A, Bowden M, Orsola A, Lloreta J, Juanpere N, Zhou CW, Bellmunt J, Eyras E. Differential expression of SRSF2 contribute to the splicing changes related to micropapillary variant histology in nonmuscle-invasive bladder cancer (NMIBC). J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.e16520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Adria Closa
- UPF - Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain
| | - Michaela Bowden
- Center for Molecular Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA
| | - Anna Orsola
- Bladder Cancer Center, Dana Farber Cancer Institute, Boston, MA
| | - José Lloreta
- Departament de Ciències Experimentals i de la Salut - UPF, Barcelona, Spain
| | | | | | | | - Eduardo Eyras
- UPF & ICREA & Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain
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Sanz-Pamplona R, Lopez-Doriga A, Paré-Brunet L, Lázaro K, Bellido F, Alonso MH, Aussó S, Guinó E, Beltrán S, Castro-Giner F, Gut M, Sanjuan X, Closa A, Cordero D, Morón-Duran FD, Soriano A, Salazar R, Valle L, Moreno V. Exome Sequencing Reveals AMER1 as a Frequently Mutated Gene in Colorectal Cancer. Clin Cancer Res 2015; 21:4709-18. [PMID: 26071483 DOI: 10.1158/1078-0432.ccr-15-0159] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 05/17/2015] [Indexed: 12/30/2022]
Abstract
PURPOSE Somatic mutations occur at early stages of adenoma and accumulate throughout colorectal cancer progression. The aim of this study was to characterize the mutational landscape of stage II tumors and to search for novel recurrent mutations likely implicated in colorectal cancer tumorigenesis. EXPERIMENTAL DESIGN The exomic DNA of 42 stage II, microsatellite-stable colon tumors and their paired mucosae were sequenced. Other molecular data available in the discovery dataset [gene expression, methylation, and copy number variations (CNV)] were used to further characterize these tumors. Additional datasets comprising 553 colorectal cancer samples were used to validate the discovered mutations. RESULTS As a result, 4,886 somatic single-nucleotide variants (SNV) were found. Almost all SNVs were private changes, with few mutations shared by more than one tumor, thus revealing tumor-specific mutational landscapes. Nevertheless, these diverse mutations converged into common cellular pathways, such as cell cycle or apoptosis. Among this mutational heterogeneity, variants resulting in early stop codons in the AMER1 (also known as FAM123B or WTX) gene emerged as recurrent mutations in colorectal cancer. Losses of AMER1 by other mechanisms apart from mutations such as methylation and copy number aberrations were also found. Tumors lacking this tumor suppressor gene exhibited a mesenchymal phenotype characterized by inhibition of the canonical Wnt pathway. CONCLUSIONS In silico and experimental validation in independent datasets confirmed the existence of functional mutations in AMER1 in approximately 10% of analyzed colorectal cancer tumors. Moreover, these tumors exhibited a characteristic phenotype.
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Affiliation(s)
- Rebeca Sanz-Pamplona
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Adriana Lopez-Doriga
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Laia Paré-Brunet
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Kira Lázaro
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Fernando Bellido
- Hereditary Cancer Program, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - M Henar Alonso
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Susanna Aussó
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Elisabet Guinó
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Sergi Beltrán
- Centre Nacional d'Anàlisi Genòmica (CNAG), Barcelona, Spain
| | | | - Marta Gut
- Centre Nacional d'Anàlisi Genòmica (CNAG), Barcelona, Spain
| | - Xavier Sanjuan
- Pathology Service, University Hospital Bellvitge (HUB-IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Adria Closa
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - David Cordero
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Francisco D Morón-Duran
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Antonio Soriano
- Gastroenterology Service, University Hospital Bellvitge (HUB-IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Ramón Salazar
- Department of Medical Oncology, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain. Translational Research Laboratory, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Laura Valle
- Hereditary Cancer Program, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Victor Moreno
- Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL) and CIBERESP, L'Hospitalet de Llobregat, Barcelona, Spain. Department of Clinical Sciences, Faculty of Medicine, University of Barcelona (UB), Barcelona, Spain.
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8
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Bu P, Wang L, Chen KY, Rakhilin N, Sun J, Closa A, Tung KL, King S, Kristine Varanko A, Xu Y, Huan Chen J, Zessin AS, Shealy J, Cummings B, Hsu D, Lipkin SM, Moreno V, Gümüş ZH, Shen X. miR-1269 promotes metastasis and forms a positive feedback loop with TGF-β. Nat Commun 2015; 6:6879. [PMID: 25872451 PMCID: PMC4399006 DOI: 10.1038/ncomms7879] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 03/09/2015] [Indexed: 01/29/2023] Open
Abstract
As patient survival drops precipitously from early-stage cancers to late-stage and metastatic cancers, microRNAs that promote relapse and metastasis can serve as prognostic and predictive markers as well as therapeutic targets for chemoprevention. Here we show that miR-1269a promotes colorectal cancer (CRC) metastasis and forms a positive feedback loop with TGF-β signalling. miR-1269a is upregulated in late-stage CRCs, and long-term monitoring of 100 stage II CRC patients revealed that miR-1269a expression in their surgically removed primary tumours is strongly associated with risk of CRC relapse and metastasis. Consistent with clinical observations, miR-1269a significantly increases the ability of CRC cells to invade and metastasize in vivo. TGF-β activates miR-1269 via Sox4, while miR-1269a enhances TGF-β signalling by targeting Smad7 and HOXD10, hence forming a positive feedback loop. Our findings suggest that miR-1269a is a potential marker to inform adjuvant chemotherapy decisions for CRC patients and a potential therapeutic target to deter metastasis.
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Affiliation(s)
- Pengcheng Bu
- 1] School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA [2] Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Lihua Wang
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Kai-Yuan Chen
- School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Nikolai Rakhilin
- School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Jian Sun
- 1] Departments of Medicine, Genetic Medicine and Surgery, Weill Cornell Medical College, New York, New York 10021, USA [2] Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York 10021, USA
| | - Adria Closa
- 1] Department of Clinical Sciences, University of Barcelona, Barcelona 08193, Spain [2] Cancer Prevention and Control Program, Catalan Institute of Oncology-IDIBELL, CIBERESP, Barcelona E08907, Spain
| | - Kuei-Ling Tung
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Sarah King
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
| | | | - Yitian Xu
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Joyce Huan Chen
- Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Amelia S Zessin
- Division of Medical Oncology, Duke Cancer Institute, Duke University, Durham, North Carolina 27710, USA
| | - James Shealy
- School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Bethany Cummings
- Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853, USA
| | - David Hsu
- Division of Medical Oncology, Duke Cancer Institute, Duke University, Durham, North Carolina 27710, USA
| | - Steven M Lipkin
- Departments of Medicine, Genetic Medicine and Surgery, Weill Cornell Medical College, New York, New York 10021, USA
| | - Victor Moreno
- 1] Department of Clinical Sciences, University of Barcelona, Barcelona 08193, Spain [2] Cancer Prevention and Control Program, Catalan Institute of Oncology-IDIBELL, CIBERESP, Barcelona E08907, Spain
| | - Zeynep H Gümüş
- 1] Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10065, USA [2] Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, New York 10065, USA
| | - Xiling Shen
- 1] School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA [2] Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853, USA [3] Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, USA
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9
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Closa A, Cordero D, Sanz-Pamplona R, Solé X, Crous-Bou M, Paré-Brunet L, Berenguer A, Guino E, Lopez-Doriga A, Guardiola J, Biondo S, Salazar R, Moreno V. Identification of candidate susceptibility genes for colorectal cancer through eQTL analysis. Carcinogenesis 2014; 35:2039-46. [PMID: 24760461 DOI: 10.1093/carcin/bgu092] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
In this study, we aim to identify the genes responsible for colorectal cancer risk behind the loci identified in genome-wide association studies (GWAS). These genes may be candidate targets for developing new strategies for prevention or therapy. We analyzed the association of genotypes for 26 GWAS single nucleotide polymorphisms (SNPs) with the expression of genes within a 2 Mb region (cis-eQTLs). Affymetrix Human Genome U219 expression arrays were used to assess gene expression in two series of samples, one of healthy colonic mucosa (n = 47) and other of normal mucosa adjacent to colon cancer (n = 97, total 144). Paired tumor tissues (n = 97) were also analyzed but did not provide additional findings. Partial Pearson correlation (r), adjusted for sample type, was used for the analysis. We have found Bonferroni-significant cis-eQTLs in three loci: rs3802842 in 11q23.1 associated to C11orf53, COLCA1 (C11orf92) and COLCA2 (C11orf93; r = 0.60); rs7136702 in 12q13.12 associated to DIP2B (r = 0.63) and rs5934683 in Xp22.3 associated to SHROOM2 and GPR143 (r = 0.47). For loci in chromosomes 11 and 12, we have found other SNPs in linkage disequilibrium that are more strongly associated with the expression of the identified genes and are better functional candidates: rs7130173 for 11q23.1 (r = 0.66) and rs61927768 for 12q13.12 (r = 0.86). These SNPs are located in DNA regions that may harbor enhancers or transcription factor binding sites. The analysis of trans-eQTLs has identified additional genes in these loci that may have common regulatory mechanisms as shown by the analysis of protein-protein interaction networks.
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Affiliation(s)
- Adria Closa
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - David Cordero
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - Rebeca Sanz-Pamplona
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - Xavier Solé
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - Marta Crous-Bou
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - Laia Paré-Brunet
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - Antoni Berenguer
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - Elisabet Guino
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - Adriana Lopez-Doriga
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain
| | - Jordi Guardiola
- Gastroenterology Service, Bellvitge University Hospital, Barcelona E08907, Spain and
| | - Sebastiano Biondo
- Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona E08907, Spain, General and Digestive Surgery Service, Bellvitge University Hospital, Barcelona E08907, Spain
| | - Ramon Salazar
- Medical Oncology Service, Catalan Institute of Oncology, Barcelona E08907, Spain
| | - Victor Moreno
- Cancer Prevention and Control Program, Catalan Institute of Oncology, and Consortium for Biomedical Research on Epidemiology and Public Health (CIBERESP), Barcelona E08907, Spain, Colorectal Cancer Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona E08907, Spain, Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona E08907, Spain,
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10
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Pare-Brunet L, Sanz-Pamplona R, Lopez-Doriga A, Berenguer-Llergo A, Ausso S, Cordero D, Closa A, Moreno V. Expression and methylation profiles associated with recurrent mutations in stage II colorectal cancer. J Clin Oncol 2013. [DOI: 10.1200/jco.2013.31.15_suppl.e14613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14613 Background: Aberration of normal genetic and epigenetic patterns occurs at early stages of colorectal cancer (CRC) and accumulates throughout cancer progression. To characterize pre-metastatic tumors, a series of stage II, microsatellite stable, colon tumors and their paired mucosa were profiled on RNA expression and DNA methylation microarrays ( www.colonomics.org ). Our aim is to define molecular subtypes based on recurrent gene mutations, methylation and expression profiles, and explore if these molecular subtypes are associated to patients’ prognosis. Methods: We have sequenced exomes (Illumina Genome Analyzer) of a subset of 42 COLONOMICS normal-tumor paired samples (21 good and 21 bad prognosis). Variants identified in normal tissue were used to filter SNPs. DNA methylation (Infinium Human Methylation 450k) and RNA expression (Affymetrix U219) data from those samples were used in this analysis. Correlation was used to assess the association between tumor mutations and differentially expressed/methylated genes. Significant genes were subsequently used to perform tumor clustering. Results: Exome analysis revealed a mean of 150 somatic mutations per sample. From these, 12 variants were recurrently mutated (KRAS, TP53, etc) in more than 3 tumors that were used to define tumor subtypes based on gene methylation/expression patterns. We obtained 12 profiles that clearly identified the cluster of mutated samples. For some profiles, the cluster only includes those tumors with the mutation. Interestingly, some clusters included the mutated samples and additional tumors showing the same phenotype despite not having the mutation. For each mutation, the overlapping between the differently methylated/expressed genes ranged from 14 to 200 common genes. When combining data from the three platforms two main CRC molecular subtypes emerge; each of which shows molecular heterogeneity but no association with prognosis. Conclusions: Mutational status is associated with gene methylation and expression patterns in CRC patients. Although none of these clusters was associated with prognosis, different groups of tumors could be related to distinctive pathways, which may reveal useful as therapeutic targets.
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Affiliation(s)
- Laia Pare-Brunet
- Biomarkers and Susceptibility Unit, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Rebeca Sanz-Pamplona
- Biomarkers and Susceptibility Unit, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Adriana Lopez-Doriga
- Biomarkers and Susceptibility Unit, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Antoni Berenguer-Llergo
- Biomarkers and Susceptibility Unit, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Susanna Ausso
- Biomarkers and Susceptibility Unit, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - David Cordero
- Biomarkers and Susceptibility Unit, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Adria Closa
- Biomarkers and Susceptibility Unit, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Victor Moreno
- IDIBELL, Institut Catala d'Oncologia, L'Hospitalet de Llobregat, Spain
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