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Genetic Predisposition to Hepatocellular Carcinoma. Metabolites 2022; 13:metabo13010035. [PMID: 36676960 PMCID: PMC9864136 DOI: 10.3390/metabo13010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Liver preneoplastic and neoplastic lesions of the genetically susceptible F344 and resistant BN rats cluster, respectively, with human HCC with better (HCCB) and poorer prognosis (HCCP); therefore, they represent a valid model to study the molecular alterations determining the genetic predisposition to HCC and the response to therapy. The ubiquitin-mediated proteolysis of ERK-inhibitor DUSP1, which characterizes HCC progression, favors the unrestrained ERK activity. DUSP1 represents a valuable prognostic marker, and ERK, CKS1, or SKP2 are potential therapeutic targets for human HCC. In DN (dysplastic nodule) and HCC of F344 rats and human HCCP, DUSP1 downregulation and ERK1/2 overexpression sustain SKP2-CKS1 activity through FOXM1, the expression of which is associated with a susceptible phenotype. SAM-methyl-transferase reactions and SAM/SAH ratio are regulated by GNMT. In addition, GNMT binds to CYP1A, PARP1, and NFKB and PREX2 gene promoters. MYBL2 upregulation deregulates cell cycle and induces the progression of premalignant and malignant liver. During HCC progression, the MYBL2 transcription factor positively correlates with cells proliferation and microvessel density, while it is negatively correlated to apoptosis. Hierarchical supervised analysis, regarding 6132 genes common to human and rat liver, showed a gene expression pattern common to normal liver of both strains and BN nodules, and a second pattern is observed in F344 nodules and HCC of both strains. Comparative genetics studies showed that DNs of BN rats cluster with human HCCB, while F344 DNs and HCCs cluster with HCCP.
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Borrego A, Colombo F, de Souza JG, Jensen JR, Dassano A, Piazza R, Rodrigues dos Santos BA, Ribeiro OG, De Franco M, Cabrera WHK, Icimoto MY, Starobinas N, Magalhães G, Monteleone LF, Eto SF, DeOcesano-Pereira C, Goldfeder MB, Pasqualoto KFM, Dragani TA, Ibañez OCM. Pycard and BC017158 Candidate Genes of Irm1 Locus Modulate Inflammasome Activation for IL-1β Production. Front Immunol 2022; 13:899569. [PMID: 35799794 PMCID: PMC9254735 DOI: 10.3389/fimmu.2022.899569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/05/2022] [Indexed: 11/13/2022] Open
Abstract
We identified Pycard and BC017158 genes as putative effectors of the Quantitative Trait locus (QTL) that we mapped at distal chromosome 7 named Irm1 for Inflammatory response modulator 1, controlling acute inflammatory response (AIR) and the production of IL-1β, dependent on the activation of the NLRP3 inflammasome. We obtained the mapping through genome-wide linkage analysis of Single Nucleotide Polymorphisms (SNPs) in a cross between High (AIRmax) and Low (AIRmin) responder mouse lines that we produced by several generations of bidirectional selection for Acute Inflammatory Response. A highly significant linkage signal (LOD score peak of 72) for ex vivo IL-1β production limited a 4 Mbp interval to chromosome 7. Sequencing of the locus region revealed 14 SNPs between “High” and “Low” responders that narrowed the locus to a 420 Kb interval. Variants were detected in non-coding regions of Itgam, Rgs10 and BC017158 genes and at the first exon of Pycard gene, resulting in an E19K substitution in the protein ASC (apoptosis associated speck-like protein containing a CARD) an adaptor molecule in the inflammasome complex. Silencing of BC017158 inhibited IL1-β production by stimulated macrophages and the E19K ASC mutation carried by AIRmin mice impaired the ex vivo IL-1β response and the formation of ASC specks in stimulated cells. IL-1β and ASC specks play major roles in inflammatory reactions and in inflammation-related diseases. Our results delineate a novel genetic factor and a molecular mechanism affecting the acute inflammatory response.
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Affiliation(s)
- Andrea Borrego
- Laboratory of Immunogenetics, Instituto Butantan, São Paulo, Brazil
| | - Francesca Colombo
- Department of Research, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Istituto Nazionale dei Tumori, Milan, Italy
| | - Jean Gabriel de Souza
- Laboratory of Immunogenetics, Instituto Butantan, São Paulo, Brazil
- Centre of New Target Discovery (CENTD), Instituto Butantan/GlaxoSmithKline (GSK)/Sao Paulo Research Foundation (FAPESP), São Paulo, Brazil
| | | | - Alice Dassano
- Department of Research, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Istituto Nazionale dei Tumori, Milan, Italy
| | - Rocco Piazza
- Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
| | | | | | | | | | | | - Nancy Starobinas
- Laboratory of Immunogenetics, Instituto Butantan, São Paulo, Brazil
| | - Geraldo Magalhães
- Laboratory of Immunopathology, Instituto Butantan, São Paulo, Brazil
| | | | - Silas Fernandes Eto
- Laboratory of Development and Innovation, Instituto Butantan, São Paulo, Brazil
| | - Carlos DeOcesano-Pereira
- Centre of New Target Discovery (CENTD), Instituto Butantan/GlaxoSmithKline (GSK)/Sao Paulo Research Foundation (FAPESP), São Paulo, Brazil
| | | | | | - Tommaso A. Dragani
- Department of Research, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Istituto Nazionale dei Tumori, Milan, Italy
| | - Olga Célia Martinez Ibañez
- Laboratory of Immunogenetics, Instituto Butantan, São Paulo, Brazil
- *Correspondence: Olga Célia Martinez Ibañez,
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Borrego A, Jensen JR, Cabrera WHK, Massa S, Ribeiro OG, Starobinas N, De Franco M, Eto SF, Manenti G, Dragani TA, Ibañez OM. Mapping of novel loci involved in lung and colon tumor susceptibility by the use of genetically selected mouse strains. Genes Immun 2021; 23:23-32. [PMID: 34966170 PMCID: PMC8866122 DOI: 10.1038/s41435-021-00159-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/29/2021] [Accepted: 12/13/2021] [Indexed: 11/29/2022]
Abstract
Two non-inbred mouse lines, phenotypically selected for maximal (AIRmin) and minimal (AIRmax) acute inflammatory response, show differential susceptibility/resistance to the development of several chemically-induced tumor types. An intercross pedigree of these mice was generated and treated with the chemical carcinogen dimethylhydrazine, which induces lung and intestinal tumors. Genome wide high-density genotyping with the Restriction Site-Associated DNA genotyping (2B-RAD) technique was used to map genetic loci modulating individual genetic susceptibility to both lung and intestinal cancer. Our results evidence new common quantitative trait loci (QTL) for those phenotypes and provide an improved understanding of the relationship between genomic variation and individual genetic predisposition to tumorigenesis in different organs.
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Affiliation(s)
- Andrea Borrego
- Laboratory of Immunogenetics, Instituto Butantan, São Paulo, Brazil
| | | | | | - Solange Massa
- Laboratory of Immunogenetics, Instituto Butantan, São Paulo, Brazil
| | | | - Nancy Starobinas
- Laboratory of Immunogenetics, Instituto Butantan, São Paulo, Brazil
| | | | - Silas Fernandes Eto
- Laboratory of Development and Innovation, Instituto Butantan, São Paulo, Brazil
| | - Giacomo Manenti
- Genetic Epidemiology and Pharmacogenomics Unit Fondazione IRCCS, Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Tommaso Antonio Dragani
- Genetic Epidemiology and Pharmacogenomics Unit Fondazione IRCCS, Istituto Nazionale dei Tumori di Milano, Milan, Italy.
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