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Fernández-Barral A, Costales-Carrera A, Buira SP, Jung P, Ferrer-Mayorga G, Larriba MJ, Bustamante-Madrid P, Domínguez O, Real FX, Guerra-Pastrián L, Lafarga M, García-Olmo D, Cantero R, Del Peso L, Batlle E, Rojo F, Muñoz A, Barbáchano A. Vitamin D differentially regulates colon stem cells in patient-derived normal and tumor organoids. FEBS J 2019; 287:53-72. [PMID: 31306552 PMCID: PMC6972655 DOI: 10.1111/febs.14998] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 07/12/2019] [Indexed: 12/12/2022]
Abstract
Intestine is a major target of vitamin D and several studies indicate an association between vitamin D deficiency and inflammatory bowel diseases (IBD), but also increased colorectal cancer (CRC) risk and mortality. However, the putative effects of 1α,25‐dihydroxyvitamin D3 (calcitriol), the active vitamin D metabolite, on human colonic stem cells are unknown. Here we show by immunohistochemistry and RNAscope in situ hybridization that vitamin D receptor (VDR) is unexpectedly expressed in LGR5+ colon stem cells in human tissue and in normal and tumor organoid cultures generated from patient biopsies. Interestingly, normal and tumor organoids respond differentially to calcitriol with profound and contrasting changes in their transcriptomic profiles. In normal organoids, calcitriol upregulates stemness‐related genes, such as LGR5,SMOC2,LRIG1,MSI1,PTK7, and MEX3A, and inhibits cell proliferation. In contrast, in tumor organoids calcitriol has little effect on stemness‐related genes while it induces a differentiated phenotype, and variably reduces cell proliferation. Concordantly, electron microscopy showed that calcitriol does not affect the blastic undifferentiated cell phenotype in normal organoids but it induces a series of differentiated features in tumor organoids. Our results constitute the first demonstration of a regulatory role of vitamin D on human colon stem cells, indicating a homeostatic effect on colon epithelium with relevant implications in IBD and CRC.
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Affiliation(s)
- Asunción Fernández-Barral
- Departments of Cancer Biology and Biochemistry, Instituto de Investigaciones Biomédicas 'Alberto Sols', Spanish National Research Council (CSIC)-Autonomous University of Madrid (UAM) and IdiPAZ, Madrid, Spain.,Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain
| | - Alba Costales-Carrera
- Departments of Cancer Biology and Biochemistry, Instituto de Investigaciones Biomédicas 'Alberto Sols', Spanish National Research Council (CSIC)-Autonomous University of Madrid (UAM) and IdiPAZ, Madrid, Spain.,Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain
| | - Sandra P Buira
- Departments of Pathology and Surgery, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Madrid, Spain
| | - Peter Jung
- Institute for Research in Biomedicine Barcelona (IRB), Barcelona, Spain.,DKTK, German Cancer Consortium, Research Group, Institute of Pathology, Ludwig-Maximilians University, Munich, Germany German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Gemma Ferrer-Mayorga
- Departments of Cancer Biology and Biochemistry, Instituto de Investigaciones Biomédicas 'Alberto Sols', Spanish National Research Council (CSIC)-Autonomous University of Madrid (UAM) and IdiPAZ, Madrid, Spain.,Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain
| | - María Jesús Larriba
- Departments of Cancer Biology and Biochemistry, Instituto de Investigaciones Biomédicas 'Alberto Sols', Spanish National Research Council (CSIC)-Autonomous University of Madrid (UAM) and IdiPAZ, Madrid, Spain.,Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain
| | - Pilar Bustamante-Madrid
- Departments of Cancer Biology and Biochemistry, Instituto de Investigaciones Biomédicas 'Alberto Sols', Spanish National Research Council (CSIC)-Autonomous University of Madrid (UAM) and IdiPAZ, Madrid, Spain.,Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain
| | | | - Francisco X Real
- Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain.,Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | | | | | - Damián García-Olmo
- Departments of Pathology and Surgery, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Madrid, Spain.,Colorectal Unit, Department of Surgery, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - Ramón Cantero
- Colorectal Unit, Department of Surgery, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - Luis Del Peso
- Departments of Cancer Biology and Biochemistry, Instituto de Investigaciones Biomédicas 'Alberto Sols', Spanish National Research Council (CSIC)-Autonomous University of Madrid (UAM) and IdiPAZ, Madrid, Spain.,Biomedical Research Networking Centres-Respiratory Diseases (CIBERES), Madrid, Spain
| | - Eduard Batlle
- Institute for Research in Biomedicine Barcelona (IRB), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.,ICREA, Passeig Lluís Companys 23, 08010, Barcelona, Spain
| | - Federico Rojo
- Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain.,Departments of Pathology and Surgery, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Madrid, Spain
| | - Alberto Muñoz
- Departments of Cancer Biology and Biochemistry, Instituto de Investigaciones Biomédicas 'Alberto Sols', Spanish National Research Council (CSIC)-Autonomous University of Madrid (UAM) and IdiPAZ, Madrid, Spain.,Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain
| | - Antonio Barbáchano
- Departments of Cancer Biology and Biochemistry, Instituto de Investigaciones Biomédicas 'Alberto Sols', Spanish National Research Council (CSIC)-Autonomous University of Madrid (UAM) and IdiPAZ, Madrid, Spain.,Biomedical Research Networking Centres-Oncology (CIBERONC), Madrid, Spain
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Ferrer-Mayorga G, Larriba MJ, Crespo P, Muñoz A. Mechanisms of action of vitamin D in colon cancer. J Steroid Biochem Mol Biol 2019; 185:1-6. [PMID: 29981368 DOI: 10.1016/j.jsbmb.2018.07.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/20/2018] [Accepted: 07/03/2018] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is the neoplasia that is most frequently associated with vitamin D deficiency in epidemiological and observational studies in terms of incidence and mortality. Many mechanistic studies show that the active vitamin D metabolite (1α,25-dihydroxyvitamin D3 or calcitriol) inhibits proliferation and promotes epithelial differentiation of human colon carcinoma cell lines that express vitamin D receptor (VDR) via the regulation of a high number of genes. A key action underlining this effect is the multilevel inhibition of the Wnt/β-catenin signaling pathway, whose abnormal activation in colon epithelial cells initiates and promotes CRC. Recently, our group has shown that calcitriol modulates gene expression and inhibits protumoral properties of patient-derived colon cancer-associated fibroblasts (CAFs). Accordingly, high VDR expression in tumor stromal fibroblasts is associated with longer survival of CRC patients. Moreover, many types of immune cells express VDR and are regulated by calcitriol, which probably contributes to its action against CRC. Given the role attributed to the intestinal microbiota in CRC and the finding that it is altered by vitamin D deficiency, an indirect antitumoral effect of calcitriol is also plausible at this level. In summary, calcitriol has an array of potential protective effects against CRC by acting on carcinoma cells, CAFs, immune cells and probably also the gut microbiota.
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Affiliation(s)
- Gemma Ferrer-Mayorga
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, IdiPAZ and CIBERONC, Arturo Duperier, 4, E-28029 Madrid, Spain.
| | - María Jesús Larriba
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, IdiPAZ and CIBERONC, Arturo Duperier, 4, E-28029 Madrid, Spain.
| | - Piero Crespo
- Instituto de Biomedicina y Biotecnología de Cantabria and CIBERONC, E-39011 Santander, Spain.
| | - Alberto Muñoz
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, IdiPAZ and CIBERONC, Arturo Duperier, 4, E-28029 Madrid, Spain.
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Barbáchano A, Fernández-Barral A, Ferrer-Mayorga G, Costales-Carrera A, Larriba MJ, Muñoz A. The endocrine vitamin D system in the gut. Mol Cell Endocrinol 2017; 453:79-87. [PMID: 27913273 DOI: 10.1016/j.mce.2016.11.028] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/28/2016] [Accepted: 11/28/2016] [Indexed: 12/25/2022]
Abstract
The active vitamin D metabolite 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) has important regulatory actions in the gut through endocrine and probably also intracrine, autocrine and paracrine mechanisms. By activating the vitamin D receptor (VDR), which is expressed at a high level in the small intestine and colon, 1,25(OH)2D3 regulates numerous genes that control gut physiology and homeostasis. 1,25(OH)2D3 is a major responsible for epithelial barrier function and calcium and phosphate absorption, and the host's defense against pathogens and the inflammatory response by several types of secretory and immune cells. Moreover, recent data suggest that 1,25(OH)2D3 has a regulatory effect on the gut microbiota and stromal fibroblasts. Many studies have linked vitamin D deficiency to inflammatory bowel diseases (ulcerative colitis and Crohn's disease) and to an increased risk of colorectal cancer, and the possible use of VDR agonists to prevent or treat these diseases is receiving increasing interest.
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Affiliation(s)
- Antonio Barbáchano
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, E-28029 Madrid, Spain
| | - Asunción Fernández-Barral
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, E-28029 Madrid, Spain
| | - Gemma Ferrer-Mayorga
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, E-28029 Madrid, Spain
| | - Alba Costales-Carrera
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, E-28029 Madrid, Spain
| | - María Jesús Larriba
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, E-28029 Madrid, Spain
| | - Alberto Muñoz
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, E-28029 Madrid, Spain.
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Ferrer-Mayorga G, Gómez-López G, Barbáchano A, Fernández-Barral A, Peña C, Pisano DG, Cantero R, Rojo F, Muñoz A, Larriba MJ. Vitamin D receptor expression and associated gene signature in tumour stromal fibroblasts predict clinical outcome in colorectal cancer. Gut 2017; 66:1449-1462. [PMID: 27053631 PMCID: PMC5530491 DOI: 10.1136/gutjnl-2015-310977] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 03/08/2016] [Accepted: 03/15/2016] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Colorectal cancer (CRC) is a major health concern. Vitamin D deficiency is associated with high CRC incidence and mortality, suggesting a protective effect of vitamin D against this disease. Given the strong influence of tumour stroma on cancer progression, we investigated the potential effects of the active vitamin D metabolite 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) on CRC stroma. DESIGN Expression of vitamin D receptor (VDR) and two 1,25(OH)2D3 target genes was analysed in 658 patients with CRC with prolonged clinical follow-up. 1,25(OH)2D3 effects on primary cultures of patient-derived colon normal fibroblasts (NFs) and cancer-associated fibroblasts (CAFs) were studied using collagen gel contraction and migration assays and global gene expression analyses. Publicly available data sets (n=877) were used to correlate the 1,25(OH)2D3-associated gene signature in CAFs with CRC outcome. RESULTS High VDR expression in tumour stromal fibroblasts was associated with better overall survival (OS) and progression-free survival in CRC, independently of its expression in carcinoma cells. 1,25(OH)2D3 inhibited the protumoural activation of NFs and CAFs and imposed in CAFs a 1,25(OH)2D3-associated gene signature that correlated with longer OS and disease-free survival in CRC. Furthermore, expression of two genes from the signature, CD82 and S100A4, correlated with stromal VDR expression and clinical outcome in our cohort of patients with CRC. CONCLUSIONS 1,25(OH)2D3 has protective effects against CRC through the regulation of stromal fibroblasts. Accordingly, expression of VDR and 1,25(OH)2D3-associated gene signature in stromal fibroblasts predicts a favourable clinical outcome in CRC. Therefore, treatment of patients with CRC with VDR agonists could be explored even in the absence of VDR expression in carcinoma cells.
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Affiliation(s)
- Gemma Ferrer-Mayorga
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, IdiPAZ, Madrid, Spain
| | - Gonzalo Gómez-López
- Bioinformatics Unit, Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Antonio Barbáchano
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, IdiPAZ, Madrid, Spain
| | - Asunción Fernández-Barral
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, IdiPAZ, Madrid, Spain
| | - Cristina Peña
- Department of Medical Oncology, Hospital Universitario Puerta de Hierro Majadahonda, Majadahonda, Spain
| | - David G Pisano
- Bioinformatics Unit, Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Ramón Cantero
- Colorectal Unit, Department of Surgery, La Paz University Hospital, IdiPAZ, Madrid, Spain
| | - Federico Rojo
- Department of Pathology, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Madrid, Spain
| | - Alberto Muñoz
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, IdiPAZ, Madrid, Spain
| | - María Jesús Larriba
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, IdiPAZ, Madrid, Spain
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Herrera M, Herrera A, Larriba M, Ferrer-Mayorga G, Herreros A, Bonilla F, Baulida J, Peña C. Colon Cancer-associated Fibroblast Establishment and Culture Growth. Bio Protoc 2016. [DOI: 10.21769/bioprotoc.1773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Ferrer-Mayorga G, Alvarez-Díaz S, Valle N, De Las Rivas J, Mendes M, Barderas R, Canals F, Tapia O, Casal JI, Lafarga M, Muñoz A. Cystatin D locates in the nucleus at sites of active transcription and modulates gene and protein expression. J Biol Chem 2015; 290:26533-48. [PMID: 26364852 DOI: 10.1074/jbc.m115.660175] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Indexed: 01/07/2023] Open
Abstract
Cystatin D is an inhibitor of lysosomal and secreted cysteine proteases. Strikingly, cystatin D has been found to inhibit proliferation, migration, and invasion of colon carcinoma cells indicating tumor suppressor activity that is unrelated to protease inhibition. Here, we demonstrate that a proportion of cystatin D locates within the cell nucleus at specific transcriptionally active chromatin sites. Consistently, transcriptomic analysis show that cystatin D alters gene expression, including that of genes encoding transcription factors such as RUNX1, RUNX2, and MEF2C in HCT116 cells. In concordance with transcriptomic data, quantitative proteomic analysis identified 292 proteins differentially expressed in cystatin D-expressing cells involved in cell adhesion, cytoskeleton, and RNA synthesis and processing. Furthermore, using cytokine arrays we found that cystatin D reduces the secretion of several protumor cytokines such as fibroblast growth factor-4, CX3CL1/fractalkine, neurotrophin 4 oncostatin-M, pulmonary and activation-regulated chemokine/CCL18, and transforming growth factor B3. These results support an unanticipated role of cystatin D in the cell nucleus, controlling the transcription of specific genes involved in crucial cellular functions, which may mediate its protective action in colon cancer.
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Affiliation(s)
- Gemma Ferrer-Mayorga
- From the Instituto de Investigaciones Biomédicas "Alberto Sols," Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, E-28029 Madrid
| | - Silvia Alvarez-Díaz
- From the Instituto de Investigaciones Biomédicas "Alberto Sols," Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, E-28029 Madrid
| | - Noelia Valle
- From the Instituto de Investigaciones Biomédicas "Alberto Sols," Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, E-28029 Madrid
| | - Javier De Las Rivas
- the Centro de Investigación del Cáncer, Consejo Superior de Investigaciones Científicas-Universidad de Salamanca, E-37007 Salamanca
| | - Marta Mendes
- the Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, E-28040 Madrid
| | - Rodrigo Barderas
- the Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, E-28040 Madrid
| | - Francesc Canals
- the Proteomics Laboratory, Vall d'Hebron Institute of Oncology, Vall d'Hebron University Hospital, Barcelona, E-08035, and
| | - Olga Tapia
- the Departamento de Anatomía y Biología Celular, Facultad de Medicina, Universidad de Cantabria-Instituto de Investigación Valdecilla, E-39011 Santander, Spain
| | - J Ignacio Casal
- the Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, E-28040 Madrid
| | - Miguel Lafarga
- the Departamento de Anatomía y Biología Celular, Facultad de Medicina, Universidad de Cantabria-Instituto de Investigación Valdecilla, E-39011 Santander, Spain
| | - Alberto Muñoz
- From the Instituto de Investigaciones Biomédicas "Alberto Sols," Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, E-28029 Madrid,
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Sanz-Garcia C, Ferrer-Mayorga G, González-Rodríguez Á, Valverde AM, Martín-Duce A, Velasco-Martín JP, Regadera J, Fernández M, Alemany S. Sterile inflammation in acetaminophen-induced liver injury is mediated by Cot/tpl2. J Biol Chem 2013; 288:15342-51. [PMID: 23572518 DOI: 10.1074/jbc.m112.439547] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Cot/tpl2 (MAP3K8) activates MKK1/2-Erk1/2 following stimulation of the Toll-like/IL-1 receptor superfamily. Here, we investigated the role of Cot/tpl2 in sterile inflammation and drug-induced liver toxicity. Cot/tpl2 KO mice exhibited reduced hepatic injury after acetaminophen challenge, as evidenced by decreased serum levels of both alanine and aspartate aminotransferases, decreased hepatic necrosis, and increased survival relative to Wt mice. Serum levels of both alanine and aspartate aminotransferases were also lower after intraperitoneal injection of acetaminophen in mice expressing an inactive form of Cot/tpl2 compared with Wt mice, suggesting that Cot/tpl2 activity contributes to acetaminophen-induced liver injury. Furthermore, Cot/tpl2 deficiency reduced neutrophil and macrophage infiltration in the liver of mice treated with acetaminophen, as well as their hepatic and systemic levels of IL-1α. Intraperitoneal injection of damage-associated molecular patterns from necrotic hepatocytes also impaired the recruitment of leukocytes and decreased the levels of several cytokines in the peritoneal cavity in Cot/tpl2 KO mice compared with Wt counterparts. Moreover, similar activation profiles of intracellular pathways were observed in Wt macrophages stimulated with Wt or Cot/tpl2 KO damage-associated molecular patterns. However, upon stimulation with damage-associated molecular patterns, the activation of Erk1/2 and JNK was deficient in Cot/tpl2 KO macrophages compared with their Wt counterparts; an effect accompanied by weaker release of several cytokines, including IL-1α, an important component in the development of sterile inflammation. Taken together, these findings indicate that Cot/tpl2 contributes to acetaminophen-induced liver injury, providing some insight into the underlying molecular mechanisms.
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Affiliation(s)
- Carlos Sanz-Garcia
- Instituto Investigaciones Biomédicas Alberto Sols, CISC-UAM, 28029 Madrid, Spain
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Alvarez-Díaz S, Valle N, Ferrer-Mayorga G, Lombardía L, Herrera M, Domínguez O, Segura MF, Bonilla F, Hernando E, Muñoz A. MicroRNA-22 is induced by vitamin D and contributes to its antiproliferative, antimigratory and gene regulatory effects in colon cancer cells. Hum Mol Genet 2012; 21:2157-65. [PMID: 22328083 DOI: 10.1093/hmg/dds031] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Vitamin D deficiency is associated with the high risk of colon cancer and a variety of other diseases. The active vitamin D metabolite 1α,25-dihydroxyvitamin D(3) (1,25(OH)(2)D(3)) regulates gene transcription via its nuclear receptor (VDR), and posttranscriptional regulatory mechanisms of gene expression have also been proposed. We have identified microRNA-22 (miR-22) and several other miRNA species as 1,25(OH)(2)D(3) targets in human colon cancer cells. Remarkably, miR-22 is induced by 1,25(OH)(2)D(3) in a time-, dose- and VDR-dependent manner. In SW480-ADH and HCT116 cells, miR-22 loss-of-function by transfection of a miR-22 inhibitor suppresses the antiproliferative effect of 1,25(OH)(2)D(3). Additionally, miR-22 inhibition increases cell migration per se and decreases the antimigratory effect of 1,25(OH)(2)D(3) in both cell types. In silico analysis shows a significant overlap between genes suppressed by 1,25(OH)(2)D(3) and miR-22 putative target genes. Consistently, miR-22 inhibition abrogates the 1,25(OH)(2)D(3)-mediated suppression of NELL2, OGN, HNRPH1, RERE and NFAT5 genes. In 39 out of 50 (78%) human colon cancer patients, miR-22 expression was found lower in the tumour than in the matched normal tissue and correlated directly with that of VDR. Our results indicate that miR-22 is induced by 1,25(OH)(2)D(3) in human colon cancer cells and it may contribute to its antitumour action against this neoplasia.
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Affiliation(s)
- Silvia Alvarez-Díaz
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid (CSIC-UAM), E-28029 Madrid, Spain.
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