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Liang M, Lyu ZS, Zhang YY, Tang SQ, Xing T, Chen YH, Wang Y, Jiang Q, Xu LP, Zhang XH, Huang XJ, Kong Y. Activation of PPARδ in bone marrow endothelial progenitor cells improves their hematopoiesis-supporting ability after myelosuppressive injury. Cancer Lett 2024; 592:216937. [PMID: 38704134 DOI: 10.1016/j.canlet.2024.216937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
Dysfunctional bone marrow (BM) endothelial progenitor cells (EPCs) with high levels of reactive oxygen species (ROS) are responsible for defective hematopoiesis in poor graft function (PGF) patients with acute leukemia or myelodysplastic neoplasms post-allotransplant. However, the underlying mechanism by which BM EPCs regulate their intracellular ROS levels and the capacity to support hematopoiesis have not been well clarified. Herein, we demonstrated decreased levels of peroxisome proliferator-activated receptor delta (PPARδ), a lipid-activated nuclear receptor, in BM EPCs of PGF patients compared with those with good graft function (GGF). In vitro assays further identified that PPARδ knockdown contributed to reduced and dysfunctional BM EPCs, characterized by the impaired ability to support hematopoiesis, which were restored by PPARδ overexpression. Moreover, GW501516, an agonist of PPARδ, repaired the damaged BM EPCs triggered by 5-fluorouracil (5FU) in vitro and in vivo. Clinically, activation of PPARδ by GW501516 benefited the damaged BM EPCs from PGF patients or acute leukemia patients in complete remission (CR) post-chemotherapy. Mechanistically, we found that increased expression of NADPH oxidases (NOXs), the main ROS-generating enzymes, may lead to elevated ROS level in BM EPCs, and insufficient PPARδ may trigger BM EPC damage via ROS/p53 pathway. Collectively, we found that defective PPARδ contributes to BM EPC dysfunction, whereas activation of PPARδ in BM EPCs improves their hematopoiesis-supporting ability after myelosuppressive therapy, which may provide a potential therapeutic target not only for patients with leukemia but also for those with other cancers.
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Affiliation(s)
- Mi Liang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Zhong-Shi Lyu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Yuan-Yuan Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China.
| | - Shu-Qian Tang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Tong Xing
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Yu-Hong Chen
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Yu Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Qian Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Lan-Ping Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Xiao-Hui Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China; State Key Laboratory of Natural and Biomimetic Drugs, China.
| | - Yuan Kong
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China.
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Mariani JN, Mansky B, Madsen PM, Salinas D, Kesmen D, Huynh NPT, Kuypers NJ, Kesel ER, Bates J, Payne C, Chandler-Militello D, Benraiss A, Goldman SA. Repression of developmental transcription factor networks triggers aging-associated gene expression in human glial progenitor cells. Nat Commun 2024; 15:3873. [PMID: 38719882 PMCID: PMC11079006 DOI: 10.1038/s41467-024-48118-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 04/18/2024] [Indexed: 05/12/2024] Open
Abstract
Human glial progenitor cells (hGPCs) exhibit diminished expansion competence with age, as well as after recurrent demyelination. Using RNA-sequencing to compare the gene expression of fetal and adult hGPCs, we identify age-related changes in transcription consistent with the repression of genes enabling mitotic expansion, concurrent with the onset of aging-associated transcriptional programs. Adult hGPCs develop a repressive transcription factor network centered on MYC, and regulated by ZNF274, MAX, IKZF3, and E2F6. Individual over-expression of these factors in iPSC-derived hGPCs lead to a loss of proliferative gene expression and an induction of mitotic senescence, replicating the transcriptional changes incurred during glial aging. miRNA profiling identifies the appearance of an adult-selective miRNA signature, imposing further constraints on the expansion competence of aged GPCs. hGPC aging is thus associated with acquisition of a MYC-repressive environment, suggesting that suppression of these repressors of glial expansion may permit the rejuvenation of aged hGPCs.
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Affiliation(s)
- John N Mariani
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA.
| | - Benjamin Mansky
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Pernille M Madsen
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Center for Translational Neuromedicine, University of Copenhagen Faculty of Health, Copenhagen, 2200, Denmark
| | - Dennis Salinas
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Deniz Kesmen
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Nguyen P T Huynh
- Center for Translational Neuromedicine, University of Copenhagen Faculty of Health, Copenhagen, 2200, Denmark
| | - Nicholas J Kuypers
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Erin R Kesel
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Janna Bates
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Casey Payne
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Devin Chandler-Militello
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Abdellatif Benraiss
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Steven A Goldman
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY, 14642, USA.
- Center for Translational Neuromedicine, University of Copenhagen Faculty of Health, Copenhagen, 2200, Denmark.
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3
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Zhang H, Ouyang C. BTB protein family and human breast cancer: signaling pathways and clinical progress. J Cancer Res Clin Oncol 2023; 149:16213-16229. [PMID: 37682360 DOI: 10.1007/s00432-023-05314-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/17/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Breast cancer is considered the number one killer of women both in China and abroad, and the leading cause of cancer death. It severely affects female health-related quality of life. Broad-complex, tramtrack, bric à brac (BTB) protein family was first discovered in drosophila as early as in 1993 by Godt D and peers, since then, more family members and their critical biological functions were uncovered. Moreover, researchers around the world have recently demonstrated that numerous signaling pathways connect BTB family members and human breast cancer. PURPOSE In this review, we critically discuss these findings regarding the essential mechanisms and functions of the BTB protein family in mediating the organic processes of human breast cancer. Meanwhile, we summarize the signaling pathways the BTB protein family participates in. And we address that BTB proteins regulate the growth, apoptosis, and other behaviors of breast cancer cells. We also point out the future directions for further studies in this field. METHODS The relevant online literatures have been reviewed for this article. CONCLUSION This review could offer an update on novel molecular targets for treating human breast cancer and new insights into BTB protein family research.
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Affiliation(s)
- Haorui Zhang
- Department of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xi Cheng District, Beijing, 100037, China
| | - Chenxi Ouyang
- Department of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xi Cheng District, Beijing, 100037, China.
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Kim H, Lee K, Phi JH, Paek SH, Yun H, Choi SH, Park SH. Neuroepithelial tumor with EWSR1::PATZ1 fusion: A literature review. J Neuropathol Exp Neurol 2023; 82:934-947. [PMID: 37804108 DOI: 10.1093/jnen/nlad076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/08/2023] Open
Abstract
We present the clinicopathological and molecular genetic characteristics of a neuroepithelial tumor (NET), EWSR1::PATZ1 fusion-positive with a literature review. This fusion has recently been discovered in rare central nervous system tumors and soft tissue sarcomas and was not included in the fifth edition of the WHO classifications. We identified this fusion in 2 NETs. The first case involved a 7-year-old girl and the second case occurred in a 53-year-old man; both presented with headaches and vomiting. The pediatric case initially showed an intermediate grade of the tumor, but upon recurrences, it transformed into a high-grade tumor with 2 relapses in 8.3 years. This case exhibited high mitotic activity (20/10 high-power fields), and a high Ki-67 index (21%). The TERT promoter (TERTp) mutation was present in both initial and recurrent tumors. In contrast, the adult case was a low-grade tumor with no mitotic activity or recurrence over 13.5 months after subtotal resection and gamma knife surgery. Interestingly, the pediatric case demonstrated a longer survival time compared to conventional glioblastoma. The TERTp mutation, similar to being a molecular signature in adult-type glioblastoma, could also be an indicator of high-grade behavior in PATZ1 fusion NET.
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Affiliation(s)
- Hyunhee Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Kwanghoon Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Hoon Phi
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea
| | - Sun Ha Paek
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea
| | - Hongseok Yun
- Department of Genomic Medicine, Seoul National University Hospital, Seoul, Korea
| | - Seung Hong Choi
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Sung-Hye Park
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
- Neurosicence Research Institute, Seoul National University College of Medicine, Seoul, Korea
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5
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Lucà S, Franco R, Napolitano A, Soria V, Ronchi A, Zito Marino F, Della Corte CM, Morgillo F, Fiorelli A, Luciano A, Palma G, Arra C, Battista S, Cerchia L, Fedele M. PATZ1 in Non-Small Cell Lung Cancer: A New Biomarker That Negatively Correlates with PD-L1 Expression and Suppresses the Malignant Phenotype. Cancers (Basel) 2023; 15:cancers15072190. [PMID: 37046851 PMCID: PMC10093756 DOI: 10.3390/cancers15072190] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/03/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023] Open
Abstract
Non-small cell lung cancer (NSCLC), the leading cause of cancer death worldwide, is still an unmet medical problem due to the lack of both effective therapies against advanced stages and markers to allow a diagnosis of the disease at early stages before its progression. Immunotherapy targeting the PD-1/PD-L1 checkpoint is promising for many cancers, including NSCLC, but its success depends on the tumor expression of PD-L1. PATZ1 is an emerging cancer-related transcriptional regulator and diagnostic/prognostic biomarker in different malignant tumors, but its role in lung cancer is still obscure. Here we investigated expression and role of PATZ1 in NSCLC, in correlation with NSCLC subtypes and PD-L1 expression. A cohort of 104 NSCLCs, including lung squamous cell carcinomas (LUSCs) and adenocarcinomas (LUADs), was retrospectively analyzed by immunohistochemistry for the expression of PATZ1 and PD-L1. The results were correlated with each other and with the clinical characteristics, showing on the one hand a positive correlation between the high expression of PATZ1 and the LUSC subtype and, on the other hand, a negative correlation between PATZ1 and PD-L1, validated at the mRNA level in independent NSCLC datasets. Consistently, two NSCLC cell lines transfected with a PATZ1-overexpressing plasmid showed PD-L1 downregulation, suggesting a role for PATZ1 in the negative regulation of PD-L1. We also showed that PATZ1 overexpression inhibits NSCLC cell proliferation, migration, and invasion, and that Patz1-knockout mice develop LUAD. Overall, this suggests that PATZ1 may act as a tumor suppressor in NSCLC.
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Affiliation(s)
- Stefano Lucà
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Antonella Napolitano
- Institute for Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), 80145 Naples, Italy
| | - Valeria Soria
- Institute for Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), 80145 Naples, Italy
| | - Andrea Ronchi
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Federica Zito Marino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Carminia Maria Della Corte
- Department of Precision Medicine, Medical Oncology, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Floriana Morgillo
- Department of Precision Medicine, Medical Oncology, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Alfonso Fiorelli
- Translational Medical and Surgical Science, Thoracic Surgery, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Antonio Luciano
- S.S.D. Sperimentazione Animale, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Giuseppe Palma
- S.S.D. Sperimentazione Animale, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Claudio Arra
- S.S.D. Sperimentazione Animale, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Sabrina Battista
- Institute for Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), 80145 Naples, Italy
| | - Laura Cerchia
- Institute for Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), 80145 Naples, Italy
| | - Monica Fedele
- Institute for Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), 80145 Naples, Italy
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6
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Ximerakis M, Holton KM, Giadone RM, Ozek C, Saxena M, Santiago S, Adiconis X, Dionne D, Nguyen L, Shah KM, Goldstein JM, Gasperini C, Gampierakis IA, Lipnick SL, Simmons SK, Buchanan SM, Wagers AJ, Regev A, Levin JZ, Rubin LL. Heterochronic parabiosis reprograms the mouse brain transcriptome by shifting aging signatures in multiple cell types. NATURE AGING 2023; 3:327-345. [PMID: 37118429 PMCID: PMC10154248 DOI: 10.1038/s43587-023-00373-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 01/30/2023] [Indexed: 04/30/2023]
Abstract
Aging is a complex process involving transcriptomic changes associated with deterioration across multiple tissues and organs, including the brain. Recent studies using heterochronic parabiosis have shown that various aspects of aging-associated decline are modifiable or even reversible. To better understand how this occurs, we performed single-cell transcriptomic profiling of young and old mouse brains after parabiosis. For each cell type, we cataloged alterations in gene expression, molecular pathways, transcriptional networks, ligand-receptor interactions and senescence status. Our analyses identified gene signatures, demonstrating that heterochronic parabiosis regulates several hallmarks of aging in a cell-type-specific manner. Brain endothelial cells were found to be especially malleable to this intervention, exhibiting dynamic transcriptional changes that affect vascular structure and function. These findings suggest new strategies for slowing deterioration and driving regeneration in the aging brain through approaches that do not rely on disease-specific mechanisms or actions of individual circulating factors.
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Affiliation(s)
- Methodios Ximerakis
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA.
- Harvard Stem Cell Institute, Cambridge, MA, USA.
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| | - Kristina M Holton
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Richard M Giadone
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Ceren Ozek
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Monika Saxena
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Samara Santiago
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Xian Adiconis
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Danielle Dionne
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Lan Nguyen
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Kavya M Shah
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Jill M Goldstein
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Caterina Gasperini
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Ioannis A Gampierakis
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Scott L Lipnick
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Sean K Simmons
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Sean M Buchanan
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Amy J Wagers
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
- Joslin Diabetes Center, Boston, MA, USA
- Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA, USA
| | - Aviv Regev
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Howard Hughes Medical Institute, Koch Institute of Integrative Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Joshua Z Levin
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Lee L Rubin
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA.
- Harvard Stem Cell Institute, Cambridge, MA, USA.
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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7
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The Role of Antioxidants in the Interplay between Oxidative Stress and Senescence. Antioxidants (Basel) 2022; 11:antiox11071224. [PMID: 35883714 PMCID: PMC9311946 DOI: 10.3390/antiox11071224] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 02/01/2023] Open
Abstract
Cellular senescence is an irreversible state of cell cycle arrest occurring in response to stressful stimuli, such as telomere attrition, DNA damage, reactive oxygen species, and oncogenic proteins. Although beneficial and protective in several physiological processes, an excessive senescent cell burden has been involved in various pathological conditions including aging, tissue dysfunction and chronic diseases. Oxidative stress (OS) can drive senescence due to a loss of balance between pro-oxidant stimuli and antioxidant defences. Therefore, the identification and characterization of antioxidant compounds capable of preventing or counteracting the senescent phenotype is of major interest. However, despite the considerable number of studies, a comprehensive overview of the main antioxidant molecules capable of counteracting OS-induced senescence is still lacking. Here, besides a brief description of the molecular mechanisms implicated in OS-mediated aging, we review and discuss the role of enzymes, mitochondria-targeting compounds, vitamins, carotenoids, organosulfur compounds, nitrogen non-protein molecules, minerals, flavonoids, and non-flavonoids as antioxidant compounds with an anti-aging potential, therefore offering insights into innovative lifespan-extending approaches.
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8
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PATZ1 Induces Apoptosis through PUMA in Glioblastoma. JOURNAL OF ONCOLOGY 2022; 2022:4953107. [PMID: 35509848 PMCID: PMC9061038 DOI: 10.1155/2022/4953107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 12/13/2022]
Abstract
Aim This study was aimed at investigating the mechanism of PATZ1 inducing apoptosis through PUMA in glioblastoma. Overexpressed PATZ1 was transfected to explore its role in inducing apoptosis in glioblastoma cells. Methods The expression of protein was detected by western blotting assay. qRT-PCR assay was used to detect the expression of RNA. Confocal microscopy was used to analyze the correlation between PATZ1 and PUMA. TUNEL assay was used to detect the cell apoptosis. The ability of cell proliferation was detected by MTT assay and EDU assay. The effects of PATZ1 on cell apoptosis and tumor proliferation were observed in vivo by tumor xenograft mouse model. Results The results showed that low PATZ1 expression correlates with poor prognosis in glioblastoma patients. Overexpression of PATZ1 inhibits glioma cell proliferation and induces apoptosis by activating intrinsic apoptotic pathways. PATZ1 colocalizes intracellularly with PUMA inducing apoptosis through PUMA in glioblastoma. Conclusion PATZ1 plays a biological regulatory role in inducing apoptosis in glioblastoma, and this regulatory effect is related to PUMA, and the specific mechanism remains to be further explored.
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9
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Mancinelli S, Vitiello M, Donnini M, Mantile F, Palma G, Luciano A, Arra C, Cerchia L, Liguori GL, Fedele M. The Transcription Regulator Patz1 Is Essential for Neural Stem Cell Maintenance and Proliferation. Front Cell Dev Biol 2021; 9:657149. [PMID: 33898458 PMCID: PMC8058466 DOI: 10.3389/fcell.2021.657149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/15/2021] [Indexed: 01/14/2023] Open
Abstract
Proper regulation of neurogenesis, the process by which new neurons are generated from neural stem and progenitor cells (NS/PCs), is essential for embryonic brain development and adult brain function. The transcription regulator Patz1 is ubiquitously expressed in early mouse embryos and has a key role in embryonic stem cell maintenance. At later stages, the detection of Patz1 expression mainly in the developing brain suggests a specific involvement of Patz1 in neurogenesis. To address this point, we first got insights in Patz1 expression profile in different brain territories at both embryonic and postnatal stages, evidencing a general decreasing trend with respect to time. Then, we performed in vivo and ex vivo analysis of Patz1-knockout mice, focusing on the ventricular and subventricular zone, where we confirmed Patz1 enrichment through the analysis of public RNA-seq datasets. Both embryos and adults showed a significant reduction in the number of Patz1-null NS/PCs, as well as of their self-renewal capability, compared to controls. Consistently, molecular analysis revealed the downregulation of stemness markers in NS/PCs derived from Patz1-null mice. Overall, these data demonstrate the requirement of Patz1 for NS/PC maintenance and proliferation, suggesting new roles for this key transcription factor specifically in brain development and plasticity, with possible implications for neurodegenerative disorders and glial brain tumors.
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Affiliation(s)
- Sara Mancinelli
- Institute of Genetics and Biophysics, National Research Council, Naples, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Michela Vitiello
- Institute for Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Maria Donnini
- Institute of Genetics and Biophysics, National Research Council, Naples, Italy
| | - Francesca Mantile
- Institute of Genetics and Biophysics, National Research Council, Naples, Italy
| | - Giuseppe Palma
- Struttura Semplice Dipartimentale (S.S.D.) Sperimentazione Animale, Istituto Nazionale Tumori—Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS)–Fondazione G. Pascale, Naples, Italy
| | - Antonio Luciano
- Struttura Semplice Dipartimentale (S.S.D.) Sperimentazione Animale, Istituto Nazionale Tumori—Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS)–Fondazione G. Pascale, Naples, Italy
| | - Claudio Arra
- Struttura Semplice Dipartimentale (S.S.D.) Sperimentazione Animale, Istituto Nazionale Tumori—Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS)–Fondazione G. Pascale, Naples, Italy
| | - Laura Cerchia
- Institute for Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | | | - Monica Fedele
- Institute for Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
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10
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Men H, Cai H, Cheng Q, Zhou W, Wang X, Huang S, Zheng Y, Cai L. The regulatory roles of p53 in cardiovascular health and disease. Cell Mol Life Sci 2021; 78:2001-2018. [PMID: 33179140 PMCID: PMC11073000 DOI: 10.1007/s00018-020-03694-6] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/22/2020] [Accepted: 10/29/2020] [Indexed: 02/06/2023]
Abstract
Cardiovascular disease (CVD) remains the leading cause of mortality globally, so further investigation is required to identify its underlying mechanisms and potential targets for its prevention. The transcription factor p53 functions as a gatekeeper, regulating a myriad of genes to maintain normal cell functions. It has received a great deal of research attention as a tumor suppressor. In the past three decades, evidence has also shown a regulatory role for p53 in the heart. Basal p53 is essential for embryonic cardiac development; it is also necessary to maintain normal heart architecture and physiological function. In pathological cardiovascular circumstances, p53 expression is elevated in both patient samples and animal models. Elevated p53 plays a regulatory role via anti-angiogenesis, pro-programmed cell death, metabolism regulation, and cell cycle arrest regulation. This largely promotes the development of CVDs, particularly cardiac remodeling in the infarcted heart, hypertrophic cardiomyopathy, dilated cardiomyopathy, and diabetic cardiomyopathy. Roles for p53 have also been found in atherosclerosis and chemotherapy-induced cardiotoxicity. However, it has different roles in cardiomyocytes and non-myocytes, even in the same model. In this review, we describe the different effects of p53 in cardiovascular physiological and pathological conditions, in addition to potential CVD therapies targeting p53.
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Affiliation(s)
- Hongbo Men
- Department of Cardiovascular Disease, First Hospital of Jilin University, Jilin University, Changchun, 130021, China
- Department of Pediatrics, Pediatric Research Institute, University of Louisville, Louisville, KY, 40202, USA
| | - He Cai
- Department of Cardiovascular Disease, First Hospital of Jilin University, Jilin University, Changchun, 130021, China
| | - Quanli Cheng
- Department of Cardiovascular Disease, First Hospital of Jilin University, Jilin University, Changchun, 130021, China
| | - Wenqian Zhou
- Department of Cardiovascular Disease, First Hospital of Jilin University, Jilin University, Changchun, 130021, China
- Department of Pediatrics, Pediatric Research Institute, University of Louisville, Louisville, KY, 40202, USA
| | - Xiang Wang
- Department of Cardiovascular Disease, First Hospital of Jilin University, Jilin University, Changchun, 130021, China
- Department of Pediatrics, Pediatric Research Institute, University of Louisville, Louisville, KY, 40202, USA
| | - Shan Huang
- Department of Cardiovascular Disease, First Hospital of Jilin University, Jilin University, Changchun, 130021, China
- Department of Pediatrics, Pediatric Research Institute, University of Louisville, Louisville, KY, 40202, USA
| | - Yang Zheng
- Department of Cardiovascular Disease, First Hospital of Jilin University, Jilin University, Changchun, 130021, China.
| | - Lu Cai
- Department of Pediatrics, Pediatric Research Institute, University of Louisville, Louisville, KY, 40202, USA.
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, 40202, USA.
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11
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Ng ZL, Siew J, Li J, Ji G, Huang M, Liao X, Yu S, Chew Y, Png CW, Zhang Y, Wen S, Yang H, Zhou Y, Long YC, Jiang ZH, Wu Q. PATZ1 (MAZR) Co-occupies Genomic Sites With p53 and Inhibits Liver Cancer Cell Proliferation via Regulating p27. Front Cell Dev Biol 2021; 9:586150. [PMID: 33598459 PMCID: PMC7882738 DOI: 10.3389/fcell.2021.586150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 01/13/2021] [Indexed: 01/05/2023] Open
Abstract
Liver cancer is the third most common cause of cancer death in the world. POZ/BTB and AT-hook-containing zinc finger protein 1 (PATZ1/MAZR) is a transcription factor associated with various cancers. However, the role of PATZ1 in cancer progression remains controversial largely due to lack of genome-wide studies. Here we report that PATZ1 regulates cell proliferation by directly regulating CDKN1B (p27) in hepatocellular carcinoma cells. Our PATZ1 ChIP-seq and gene expression microarray analyses revealed that PATZ1 is strongly related to cancer signatures and cellular proliferation. We further discovered that PATZ1 depletion led to an increased rate of colony formation, elevated Ki-67 expression and greater S phase entry. Importantly, the increased cancer cell proliferation was accompanied with suppressed expression of the cyclin-dependent kinase inhibitor CDKN1B. Consistently, we found that PATZ1 binds to the genomic loci flanking the transcriptional start site of CDKN1B and positively regulates its transcription. Notably, we demonstrated that PATZ1 is a p53 partner and p53 is essential for CDKN1B regulation. In conclusion, our study provides novel mechanistic insights into the inhibitory role of PATZ1 in liver cancer progression, thereby yielding a promising therapeutic intervention to alleviate tumor burden.
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Affiliation(s)
- Zhen Long Ng
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jiamin Siew
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jia Li
- Cancer Science Institute of Singapore, Centre for Translational Medicine, Singapore, Singapore
| | - Guanxu Ji
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Min Huang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Xiaohua Liao
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Sue Yu
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yuanyuan Chew
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chin Wen Png
- Department of Microbiology, Immunology Programme, Life Sciences Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yongliang Zhang
- Department of Microbiology, Immunology Programme, Life Sciences Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Shijun Wen
- Medicinal Chemistry and Molecular Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Henry Yang
- Cancer Science Institute of Singapore, Centre for Translational Medicine, Singapore, Singapore
| | - Yiting Zhou
- The Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Center for Stem Cell and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Yun Chau Long
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Zhi Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Qiang Wu
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
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12
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Huerta M, Reyes L, García-Rivera G, Bañuelos C, Betanzos A, Díaz-Hernández M, Galindo A, Bolaños J, Cárdenas H, Azuara-Liceaga E, Chávez-Munguía B, Orozco E. A noncanonical GATA transcription factor of Entamoeba histolytica modulates genes involved in phagocytosis. Mol Microbiol 2020; 114:1019-1037. [PMID: 32808689 DOI: 10.1111/mmi.14592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 12/21/2022]
Abstract
In this paper, we explored the presence of GATA in Entamoeba histolytica and their function as regulators of phagocytosis-related genes. Bioinformatics analyses evidenced a single 579 bp sequence encoding for a protein (EhGATA), smaller than GATA factors of other organisms. EhGATA appeared phylogenetically close to Dictyostelium discoideum and Schistosoma mansoni GATA proteins. Its sequence predicts the presence of a zinc-finger DNA binding domain and an AT-Hook motif; it also has two nuclear localization signals. By transmission electron and confocal microscopy, anti-EhGATA antibodies revealed the protein in the cytoplasm and nucleus, and 65% of nuclear signal was in the heterochromatin. EhGATA recombinant protein and trophozoites nuclear extracts bound to GATA-DNA consensus sequence. By in silico scrutiny, 1,610 gene promoters containing GATA-binding sequences appeared, including Ehadh and Ehvps32 promoters, whose genes participate in phagocytosis. Chromatin immunoprecipitation assays showed that EhGATA interact with Ehadh and Ehvps32 promoters. In EhGATA-overexpressing trophozoites (NeoGATA), the Ehadh and Ehvps32 mRNAs amount was modified, strongly supporting that EhGATA could regulate their transcription. NeoGATA trophozoites exhibited rounded shapes, high proliferation rates, and diminished erythrophagocytosis. Our results provide new insights into the role of EhGATA as a noncanonical transcription factor, regulating genes associated with phagocytosis.
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Affiliation(s)
- Miriam Huerta
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
| | - Luz Reyes
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
| | - Guillermina García-Rivera
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
| | - Cecilia Bañuelos
- Programa de Doctorado Transdisciplinario en Desarrollo Científico y Tecnológico para la Sociedad, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
| | - Abigail Betanzos
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México.,Consejo Nacional de Ciencia y Tecnología, Ciudad de México, México
| | - Mitzi Díaz-Hernández
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
| | - Ausencio Galindo
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
| | - Jeni Bolaños
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
| | - Helios Cárdenas
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, Ciudad de México, México
| | - Elisa Azuara-Liceaga
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, Ciudad de México, México
| | - Bibiana Chávez-Munguía
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
| | - Esther Orozco
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México
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13
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Li J, Shangguan H, Chen X, Ye X, Zhong B, Chen P, Wang Y, Xin B, Bi Y, Zhu D. Advanced glycation end product levels were correlated with inflammation and carotid atherosclerosis in type 2 diabetes patients. Open Life Sci 2020; 15:364-372. [PMID: 33817224 PMCID: PMC7874589 DOI: 10.1515/biol-2020-0042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/25/2020] [Accepted: 05/03/2020] [Indexed: 11/18/2022] Open
Abstract
Diabetes mellitus with atherosclerosis (AS) adds to the social burden. This study aimed to investigate whether advanced glycation end product (AGE) levels were correlated with inflammation and carotid AS (CAS) in type 2 diabetes mellitus (T2DM) patients. A total of 50 elderly T2DM patients and 50 age-matched senior healthy subjects were recruited in this study. T2DM patients were classified into two groups based on the intima–media thickness (IMT) of the carotid artery from color Doppler ultrasonography. Patients with IMT > 1 mm were classified into the T2DM + CAS group (n = 28), and patients with IMT < 1 mm were assigned as the T2DM + non-atherosclerosis (NAS) group (n = 22). The plasma levels of AGEs, receptor for AGE (RAGE), tumor necrosis factor alpha (TNF-α), and interferon gamma (IFN-γ) of all subjects were measured by enzyme-linked immunosorbent assay. The T-lymphocyte subsets were analyzed by a flow detector. T2DM + CAS patients showed significantly higher concentrations of AGEs, RAGE, TNF-α, and IFN-γ in the peripheral blood. The highest levels of CD4+ T cells were observed in the T2DM + CAS group. The AGE level was positively correlated with the concentrations of RAGE, TNF-α, IFN-γ, and CD4+. In summary, the results showed that the levels of AGEs may be correlated with the inflammatory status in T2DM patients with CAS.
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Affiliation(s)
- Jie Li
- Department of Endocrinology, Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing 210008, China.,Department of Endocrinology, Nanjing Central Hospital, Nanjing 210008, China
| | - Haiyan Shangguan
- Department of Endocrinology, Nanjing Central Hospital, Nanjing 210008, China
| | - Xiaoqian Chen
- Department of Endocrinology, Nanjing Central Hospital, Nanjing 210008, China
| | - Xiao Ye
- Department of Endocrinology, Zhejiang Provincial People's Hospital, Hangzhou 310000, China.,Department of Endocrinology, People's Hospital of Hangzhou Medical College, Hangzhou 310000, China
| | - Bin Zhong
- Department of Endocrinology, Nanjing Central Hospital, Nanjing 210008, China
| | - Pen Chen
- Department of Endocrinology, Nanjing Central Hospital, Nanjing 210008, China
| | - Yamei Wang
- Department of Endocrinology, Nanjing Central Hospital, Nanjing 210008, China
| | - Bin Xin
- Department of Endocrinology, Nanjing Central Hospital, Nanjing 210008, China
| | - Yan Bi
- Department of Endocrinology, Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing 210008, China.,Department of Endocrinology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, Jiangsu, China
| | - Dalong Zhu
- Department of Endocrinology, Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing 210008, China.,Department of Endocrinology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, Jiangsu, China
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14
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CD9 induces cellular senescence and aggravates atherosclerotic plaque formation. Cell Death Differ 2020; 27:2681-2696. [PMID: 32346137 DOI: 10.1038/s41418-020-0537-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/26/2022] Open
Abstract
CD9, a 24 kDa tetraspanin membrane protein, is known to regulate cell adhesion and migration, cancer progression and metastasis, immune and allergic responses, and viral infection. CD9 is upregulated in senescent endothelial cells, neointima hyperplasia, and atherosclerotic plaques. However, its role in cellular senescence and atherosclerosis remains undefined. We investigated the potential mechanism for CD9-mediated cellular senescence and its role in atherosclerotic plaque formation. CD9 knockdown in senescent human umbilical vein endothelial cells significantly rescued senescence phenotypes, while CD9 upregulation in young cells accelerated senescence. CD9 regulated cellular senescence through a phosphatidylinositide 3 kinase-AKT-mTOR-p53 signal pathway. CD9 expression increased in arterial tissues from humans and rats with age, and in atherosclerotic plaques in humans and mice. Anti-mouse CD9 antibody noticeably prevented the formation of atherosclerotic lesions in ApoE-/- mice and Ldlr-/- mice. Furthermore, CD9 ablation in ApoE-/- mice decreased atherosclerotic lesions in aorta and aortic sinus. These results suggest that CD9 plays critical roles in endothelial cell senescence and consequently the pathogenesis of atherosclerosis, implying that CD9 is a novel target for prevention and treatment of vascular aging and atherosclerosis.
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15
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Wang Z, Zhu T, Ma W, Fan E, Lu N, Ouyang F, Wang N, Yang G, Kong L, Qu G, Zhang S, Wang J. Potential function of CbuSPL and gene encoding its interacting protein during flowering in Catalpa bungei. BMC PLANT BIOLOGY 2020; 20:105. [PMID: 32143577 PMCID: PMC7060540 DOI: 10.1186/s12870-020-2303-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 02/24/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND "Bairihua", a variety of the Catalpa bungei, has a large amount of flowers and a long flowering period which make it an excellent material for flowering researches in trees. SPL is one of the hub genes that regulate both flowering transition and development. RESULTS SPL homologues CbuSPL9 was cloned using degenerate primers with RACE. Expression studies during flowering transition in "Bairihua" and ectopic expression in Arabidopsis showed that CbuSPL9 was functional similarly with its Arabidopsis homologues. In the next step, we used Y2H to identify the proteins that could interact with CbuSPL9. HMGA, an architectural transcriptional factor, was identified and cloned for further research. BiFC and BLI showed that CbuSPL9 could form a heterodimer with CbuHMGA in the nucleus. The expression analysis showed that CbuHMGA had a similar expression trend to that of CbuSPL9 during flowering in "Bairihua". Intriguingly, ectopic expression of CbuHMGA in Arabidopsis would lead to aberrant flowers, but did not effect flowering time. CONCLUSIONS Our results implied a novel pathway that CbuSPL9 regulated flowering development, but not flowering transition, with the participation of CbuHMGA. Further investments need to be done to verify the details of this pathway.
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Affiliation(s)
- Zhi Wang
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
| | - Tianqing Zhu
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
| | - Wenjun Ma
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
| | - Erqin Fan
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
- Present address: State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 People’s Republic of China
| | - Nan Lu
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
| | - Fangqun Ouyang
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
| | - Nan Wang
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
| | - Guijuan Yang
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
| | - Lisheng Kong
- Present address: Department of Biology Centre for Forest Biology, University of Victoria, Victoria 11, BC Canada
| | - Guanzheng Qu
- Present address: State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 People’s Republic of China
| | - Shougong Zhang
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
| | - Junhui Wang
- Present address: State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 People’s Republic of China
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16
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Danoy M, Poulain S, Koui Y, Tauran Y, Scheidecker B, Kido T, Miyajima A, Sakai Y, Plessy C, Leclerc E. Transcriptome profiling of hiPSC-derived LSECs with nanoCAGE. Mol Omics 2020; 16:138-146. [PMID: 31989141 DOI: 10.1039/c9mo00135b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Liver Sinusoidal Endothelial Cells (LSECs) are an important component of the liver as they compose the microvasculature which allows the supply of oxygen, blood, and nutrients. However, maintenance of these cells in vitro remains challenging as they tend to rapidly lose some of their characteristics such as fenestration or as their immortalized counterparts present poor characteristics. In this work, human induced pluripotent stem cells (hiPSCs) have been differentiated toward an LSEC phenotype. After differentiation, the RNA quantification allowed demonstration of high expression of specific vascular markers (CD31, CD144, and STAB2). Immunostaining performed on the cells was found to be positive for both Stabilin-1 and Stabilin-2. Whole transcriptome analysis performed with the nanoCAGE method further confirmed the overall vascular commitment of the cells. The gene expression profile revealed the upregulation of the APLN, LYVE1, VWF, ESAM and ANGPT2 genes while VEGFA appeared to be downregulated. Analysis of promoter motif activities highlighted several transcription factors (TFs) of interest in LSECs (IRF2, ERG, MEIS2, SPI1, IRF7, WRNIP1, HIC2, NFIX_NFIB, BATF, and PATZ1). Based on this investigation, we compiled the regulatory network involving the relevant TFs, their target genes as well as their related signaling pathways. The proposed hiPSC-derived LSEC model and its regulatory network were then confirmed by comparing the experimental data to primary human LSEC reference datasets. Thus, the presented model appears as a promising tool to generate more complex in vitro liver multi-cellular tissues.
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Affiliation(s)
- Mathieu Danoy
- CNRS UMI 2820, Laboratory for Integrated Micro Mechatronic Systems, Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
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17
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PATZ1 is required for efficient HIV-1 infection. Biochem Biophys Res Commun 2019; 514:538-544. [DOI: 10.1016/j.bbrc.2019.04.175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 04/25/2019] [Indexed: 11/20/2022]
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18
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Lin Z, Wang L, Chen M, Chen J. The acute transcriptomic response of coral-algae interactions to pH fluctuation. Mar Genomics 2018; 42:32-40. [PMID: 30197044 DOI: 10.1016/j.margen.2018.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/25/2018] [Accepted: 08/26/2018] [Indexed: 10/28/2022]
Abstract
Little is known about how the coral host and its endosymbiont interactions change when they are exposed to a sudden nonlinear environmental transformation, yet this is crucial to coral survival in extreme events. Here, we present a study that investigates the transcriptomic response of corals and their endosymbionts to an abrupt change in pH (pH 7.60 and 8.35). The transcriptome indicates that the endosymbiont demonstrates a synchronized downregulation in carbon acquisition and fixation processes and may result in photosynthetic dysfunction in endosymbiotic Symbiodinium, suggesting that the mutualistic continuum of coral-algae interactions is compromised in response to high-CO2 exposure. Transcriptomic data also shows that corals are still capable of calcifying in response to the low pH but could experience a series of negative effects on their energy dynamics, which including protein damage, DNA repair, ion transport, cellular apoptosis, calcification acclimation and maintenance of intracellular pH homeostasis and stress tolerance to pH swing. This suggests enhanced energy costs for coral metabolic adaptation. This study provides a deeper understanding of the biological basis related to the symbiotic corals in response to extreme future climate change and environmental variability.
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Affiliation(s)
- Zhenyue Lin
- School of Life Sciences, Xiamen University, Xiamen 361005, China; Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China.
| | - Liuying Wang
- School of Life Sciences, Xiamen University, Xiamen 361005, China.
| | - Mingliang Chen
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China.
| | - Jianming Chen
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China.
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19
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Franco R, Scognamiglio G, Valentino E, Vitiello M, Luciano A, Palma G, Arra C, La Mantia E, Panico L, Tenneriello V, Pinto A, Frigeri F, Capobianco G, Botti G, Cerchia L, De Chiara A, Fedele M. PATZ1 expression correlates positively with BAX and negatively with BCL6 and survival in human diffuse large B cell lymphomas. Oncotarget 2018; 7:59158-59172. [PMID: 27494852 PMCID: PMC5312302 DOI: 10.18632/oncotarget.10993] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 07/18/2016] [Indexed: 12/18/2022] Open
Abstract
Non-Hodgkin lymphomas (NHLs) include a heterogeneous group of diseases, which differ in both cellular origin and clinical behavior. Among the aggressive malignancies of this group, the diffuse large B-cell lymphomas (DLBCLs) are the most frequently observed. They are themselves clinically and molecularly heterogeneous and have been further sub-divided in three sub-types according to different cell of origin, mechanisms of oncogenesis and clinical outcome. Among them, the germinal center B-cell-like (GCB) derives from the germinal center and expresses the BCL6 oncogene. We have previously shown that Patz1-knockout mice develop B-cell neoplasias, suggesting a tumor suppressor role for PATZ1 in human NHLs. Here, by immunohistochemical analysis of a tissue-microarray including 170 NHLs, we found that PATZ1 nuclear expression is down-regulated in follicular lymphomas and DLBCLs. Moreover, consistent with our previous results showing a PATZ1-dependent regulation of BCL6 and BAX transcription, we show that low PATZ1 nuclear expression significantly correlates with high BCL6 expression, mainly in DLBCLs, and with low BAX expression, also considering separately follicular lymphomas and DLBCLs. Finally, by analyzing overall and progression-free survival in DLBCL patients that underwent rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone chemotherapy, low levels of PATZ1 were significantly associated to a worst outcome and demonstrated an independent prognostic factor in multivariate analysis, including known prognostic factors of DLBCL, IPI score and cell of origin (GCB/non-GCB). Therefore, we propose PATZ1 as a new prognostic marker of DLBCLs, which may act as a tumor suppressor by enhancing apoptosis through inhibiting and enhancing transcription of BCL6 and BAX, respectively.
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Affiliation(s)
- Renato Franco
- Surgical Pathology Unit, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy.,Pathology Unit, Second University of Naples, Naples, Italy
| | - Giosuè Scognamiglio
- Surgical Pathology Unit, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy
| | - Elena Valentino
- Surgical Pathology Unit, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy
| | - Michela Vitiello
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy
| | - Antonio Luciano
- Animal Facility, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy
| | - Giuseppe Palma
- Animal Facility, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy
| | - Claudio Arra
- Animal Facility, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy
| | - Elvira La Mantia
- Surgical Pathology Unit, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy
| | - Luigi Panico
- Pathology Unit, Hospital 'S.G. Moscati', Avellino, Italy
| | | | - Antonello Pinto
- Haematology-Oncology and Stem Cell Transplantation Unit, Department of Hematology, National Cancer Institute, Fondazione 'G. Pascale', IRCCS, Naples, Italy
| | - Ferdinando Frigeri
- Haematology-Oncology and Stem Cell Transplantation Unit, Department of Hematology, National Cancer Institute, Fondazione 'G. Pascale', IRCCS, Naples, Italy
| | - Gaetana Capobianco
- Haematology-Oncology and Stem Cell Transplantation Unit, Department of Hematology, National Cancer Institute, Fondazione 'G. Pascale', IRCCS, Naples, Italy
| | - Gerardo Botti
- Surgical Pathology Unit, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy
| | - Laura Cerchia
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy
| | - Annarosaria De Chiara
- Surgical Pathology Unit, National Cancer Institute 'Fondazione Giovanni Pascale', IRCCS, Naples, Italy
| | - Monica Fedele
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy
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20
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Ho MY, Liang CM, Liang SM. PATZ1 induces PP4R2 to form a negative feedback loop on IKK/NF-κB signaling in lung cancer. Oncotarget 2018; 7:52255-52269. [PMID: 27391343 PMCID: PMC5239549 DOI: 10.18632/oncotarget.10427] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/17/2016] [Indexed: 11/25/2022] Open
Abstract
Activation of IKK enhances NF-κB signaling to facilitate cancer cell migration, invasion and metastasis. Here, we uncover the existence of a negative feedback loop of IKK. The transcription factor PATZ1 induces protein phosphatase-4 (PP4) regulatory subunit 2 (PP4R2) in an IKK-dependent manner. PP4R2 enhances the binding of PP4 to phosphorylated IKK to inactivate IKK/NF-κB signaling during sustained stimulation by cellular stimuli such as growth factors and inflammatory mediators. Matched pair studies reveal that primary lung cancers express more PATZ1 and PP4R2 than lymph node metastases in patients. Ectopic PATZ1 decreases invasion/colonization of lung cancers and prolongs the survival of xenograft mice. These effects of PATZ1 are reversed by downregulating PP4R2. Our results suggest that PATZ1 and PP4R2 provide negative feedback on IKK/NF-κB signaling to prevent cancer cells from over-stimulation from cellular stimuli; a decline in PATZ1 and PP4R2 is functionally associated with cancer migration/invasion and agents enhancing PATZ1 and PP4R2 are worth exploring to prevent invasion/metastasis of lung cancers.
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Affiliation(s)
- Ming-Yi Ho
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan, ROC
| | - Chi-Ming Liang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan, ROC
| | - Shu-Mei Liang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan, ROC.,Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan, ROC
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21
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Fedele M, Crescenzi E, Cerchia L. The POZ/BTB and AT-Hook Containing Zinc Finger 1 (PATZ1) Transcription Regulator: Physiological Functions and Disease Involvement. Int J Mol Sci 2017; 18:ijms18122524. [PMID: 29186807 PMCID: PMC5751127 DOI: 10.3390/ijms18122524] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 12/22/2022] Open
Abstract
PATZ1 is a zinc finger protein, belonging to the POZ domain Krüppel-like zinc finger (POK) family of architectural transcription factors, first discovered in 2000 by three independent groups. Since that time accumulating evidences have shown its involvement in a variety of biological processes (i.e., embryogenesis, stemness, apoptosis, senescence, proliferation, T-lymphocyte differentiation) and human diseases. Here we summarize these studies with a focus on the PATZ1 emerging and controversial role in cancer, where it acts as either a tumor suppressor or an oncogene. Finally, we give some insight on clinical perspectives using PATZ1 as a prognostic marker and therapeutic target.
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22
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Iesato A, Nakamura T, Izumi H, Uehara T, Ito KI. PATZ1 knockdown enhances malignant phenotype in thyroid epithelial follicular cells and thyroid cancer cells. Oncotarget 2017; 8:82754-82772. [PMID: 29137300 PMCID: PMC5669926 DOI: 10.18632/oncotarget.19787] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 06/28/2017] [Indexed: 11/25/2022] Open
Abstract
This study was designed to examine the involvement of PATZ1 in carcinogenesis and dedifferentiation of thyroid cancer. Immunohistochemistry on clinical specimens indicated nuclear PATZ1 expression in all normal thyroid glands and adenomatous goiter, while nuclear PATZ1 expression decreased along with the dedifferentiation of thyroid cancer. Knockdown of nuclear PATZ1 by siRNA in an immortalized normal follicular epithelial cell line (Nthy-ori 3-1) altered cellular morphology and significantly increased cell proliferation, migration, and invasion. In addition, the expression of urokinase-type plasminogen activator (uPA), matrix metalloproteinase (MMP) 2, MMP9, and MMP11 was increased by PATZ1 knockdown in Nthy-ori 3-1 cells. When PATZ1 was silenced in differentiated thyroid cancer (DTC) cell lines (TPC-1 and FTC-133), proliferation, cellular motility, and expression of uPA and MMPs were significantly increased. Forced expression of exogenous PATZ1 decreased proliferation, cellular motility, and the expression of uPA and MMPs in ATC cell lines (ACT-1 and FRO). In thyroid cancer cell lines, PATZ1 functioned as a tumor suppressor regardless of p53 status. Moreover, the ratio of nuclear PATZ1 positive tumors was significantly decreased in ATC irrespective of p53 status. Our study demonstrates that PATZ1 knockdown enhances malignant phenotype both in thyroid follicular epithelial cells and thyroid cancer cells, suggesting that PATZ1 functions as a tumor suppressor in thyroid follicular epithelial cells and is involved in the dedifferentiation of thyroid cancer.
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Affiliation(s)
- Asumi Iesato
- Division of Breast, Endocrine and Respiratory Surgery, Department of Surgery (II), Shinshu University School of Medicine, Matsumoto, Japan
| | - Teruo Nakamura
- Division of Breast, Endocrine and Respiratory Surgery, Department of Surgery (II), Shinshu University School of Medicine, Matsumoto, Japan
| | - Hiroto Izumi
- Department of Occupational Pneumology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Ken-Ichi Ito
- Division of Breast, Endocrine and Respiratory Surgery, Department of Surgery (II), Shinshu University School of Medicine, Matsumoto, Japan
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23
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Hernandez-Segura A, de Jong TV, Melov S, Guryev V, Campisi J, Demaria M. Unmasking Transcriptional Heterogeneity in Senescent Cells. Curr Biol 2017; 27:2652-2660.e4. [PMID: 28844647 DOI: 10.1016/j.cub.2017.07.033] [Citation(s) in RCA: 473] [Impact Index Per Article: 67.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 06/22/2017] [Accepted: 07/13/2017] [Indexed: 12/31/2022]
Abstract
Cellular senescence is a state of irreversibly arrested proliferation, often induced by genotoxic stress [1]. Senescent cells participate in a variety of physiological and pathological conditions, including tumor suppression [2], embryonic development [3, 4], tissue repair [5-8], and organismal aging [9]. The senescence program is variably characterized by several non-exclusive markers, including constitutive DNA damage response (DDR) signaling, senescence-associated β-galactosidase (SA-βgal) activity, increased expression of the cyclin-dependent kinase (CDK) inhibitors p16INK4A (CDKN2A) and p21CIP1 (CDKN1A), increased secretion of many bio-active factors (the senescence-associated secretory phenotype, or SASP), and reduced expression of the nuclear lamina protein LaminB1 (LMNB1) [1]. Many senescence-associated markers result from altered transcription, but the senescent phenotype is variable, and methods for clearly identifying senescent cells are lacking [10]. Here, we characterize the heterogeneity of the senescence program using numerous whole-transcriptome datasets generated by us or publicly available. We identify transcriptome signatures associated with specific senescence-inducing stresses or senescent cell types and identify and validate genes that are commonly differentially regulated. We also show that the senescent phenotype is dynamic, changing at varying intervals after senescence induction. Identifying novel transcriptome signatures to detect any type of senescent cell or to discriminate among diverse senescence programs is an attractive strategy for determining the diverse biological roles of senescent cells and developing specific drug targets.
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Affiliation(s)
- Alejandra Hernandez-Segura
- European Research Institute for the Biology of Aging, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, the Netherlands
| | - Tristan V de Jong
- European Research Institute for the Biology of Aging, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, the Netherlands
| | - Simon Melov
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, 94945 Novato CA, USA
| | - Victor Guryev
- European Research Institute for the Biology of Aging, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, the Netherlands
| | - Judith Campisi
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, 94945 Novato CA, USA; Lawrence Berkeley National Laboratory, Life Sciences Division, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Marco Demaria
- European Research Institute for the Biology of Aging, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, the Netherlands.
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24
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Li J, Su X, Wang Y, Yang W, Pan Y, Su C, Zhang X. Genome-wide identification and expression analysis of the BTB domain-containing protein gene family in tomato. Genes Genomics 2017; 40:1-15. [PMID: 29892895 DOI: 10.1007/s13258-017-0604-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/03/2017] [Indexed: 01/01/2023]
Abstract
BTB (broad-complex, tramtrack, and bric-a-brac) family proteins are characterized by the presence of a protein-protein interaction BTB domain. BTB proteins have diverse functions, including transcriptional regulation, protein degradation, chromatin remodeling, and cytoskeletal regulation. However, little is known about this gene family in tomato (Solanum lycopersicum), the most important model plant for crop species. In this study, 38 BTB genes were identified based on tomato whole-genome sequence. Phylogenetic analysis of BTB proteins in tomato revealed that SlBTB proteins could be divided into at least 4 subfamilies. The SlBTB proteins contains 1-3 BTB domains, and several other types of functional domains, including KCTD (Potassium channel tetramerization domain-containing), the MATH (meprin and TRAF homology), ANK (Ankyrin repeats), NPR1 (nonexpressor of pathogenesis-related proteins1), NPH3 (Nonphototropic Hypocotyl 3), TAZ zinc finger, C-terminal Kelch, Skp1 and Arm (Armadillo/beta-catenin-like repeat) domains are also found in some tomato BTB proteins. Moreover, their expression patterns in tissues/stages, in response to different abiotic stress treatments and hormones were also investigated. This study provides the first comprehensive analysis of BTB gene family in the tomato genome. The data will undoubtedly be useful for better understanding the potential functions of BTB genes, and their possible roles in mediating hormone cross-talk and abiotic stress in tomato as well as in some other relative species.
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Affiliation(s)
- Jinhua Li
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education; College of Horticulture and Landscape Architechture, Southwest University, No. 2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Xiaoxing Su
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education; College of Horticulture and Landscape Architechture, Southwest University, No. 2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yinlei Wang
- Institute of Vegetable Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Wei Yang
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education; College of Horticulture and Landscape Architechture, Southwest University, No. 2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yu Pan
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education; College of Horticulture and Landscape Architechture, Southwest University, No. 2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Chenggang Su
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education; College of Horticulture and Landscape Architechture, Southwest University, No. 2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Xingguo Zhang
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education; College of Horticulture and Landscape Architechture, Southwest University, No. 2 Tiansheng Road, Beibei, Chongqing, 400715, China.
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25
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PATZ1 is a new prognostic marker of glioblastoma associated with the stem-like phenotype and enriched in the proneural subtype. Oncotarget 2017; 8:59282-59300. [PMID: 28938636 PMCID: PMC5601732 DOI: 10.18632/oncotarget.19546] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 06/19/2017] [Indexed: 01/20/2023] Open
Abstract
Glioblastoma (GBM), the most malignant of the brain tumors, has been classified on the basis of molecular signature into four subtypes: classical, mesenchymal, proneural and neural, among which the mesenchymal and proneural subtypes have the shortest and longest survival, respectively. Here we show that the transcription factor PATZ1 gene is upregulated in gliomas compared to normal brain and, among GBMs, is particularly enriched in the proneural subtype and co-localize with stemness markers. Accordingly, in GBM-derived glioma-initiating stem cells (GSCs) PATZ1 is overexpressed compared to differentiated tumor cells and its expression significantly correlates with the characteristic stem cell capacity to grow as neurospheres in vitro. Interestingly, survival analysis demonstrated that PATZ1 lower levels informed poor prognosis in GBM and, specifically, in the proneural subgroup, suggesting it may serve a role as diagnostic and prognostic biomarker for intra-subtype heterogeneity of proneural GBM. We also show that PATZ1 suppresses the expression of the mesenchyme-inducer CXCR4, and that PATZ1 and CXCR4 are inversely correlated in GSC and proneural GBM. Overall these findings support a central role of PATZ1 in regulating malignancy of GBM.
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26
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Wang Y, Boerma M, Zhou D. Ionizing Radiation-Induced Endothelial Cell Senescence and Cardiovascular Diseases. Radiat Res 2016; 186:153-61. [PMID: 27387862 DOI: 10.1667/rr14445.1] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Exposure to ionizing radiation induces not only apoptosis but also senescence. While the role of endothelial cell apoptosis in mediating radiation-induced acute tissue injury has been extensively studied, little is known about the role of endothelial cell senescence in the pathogenesis of radiation-induced late effects. Senescent endothelial cells exhibit decreased production of nitric oxide and expression of thrombomodulin, increased expression of adhesion molecules, elevated production of reactive oxygen species and inflammatory cytokines and an inability to proliferate and form capillary-like structures in vitro. These findings suggest that endothelial cell senescence can lead to endothelial dysfunction by dysregulation of vasodilation and hemostasis, induction of oxidative stress and inflammation and inhibition of angiogenesis, which can potentially contribute to radiation-induced late effects such as cardiovascular diseases (CVDs). In this article, we discuss the mechanisms by which radiation induces endothelial cell senescence, the roles of endothelial cell senescence in radiation-induced CVDs and potential strategies to prevent, mitigate and treat radiation-induced CVDs by targeting senescent endothelial cells.
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Affiliation(s)
- Yingying Wang
- Division of Radiation Health Department of Pharmaceutical Sciences, University of Arkansas Medical Sciences, Little Rock, Arkansas 72205
| | - Marjan Boerma
- Division of Radiation Health Department of Pharmaceutical Sciences, University of Arkansas Medical Sciences, Little Rock, Arkansas 72205
| | - Daohong Zhou
- Division of Radiation Health Department of Pharmaceutical Sciences, University of Arkansas Medical Sciences, Little Rock, Arkansas 72205
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27
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PATZ1 is a target of miR-29b that is induced by Ha-Ras oncogene in rat thyroid cells. Sci Rep 2016; 6:25268. [PMID: 27125250 PMCID: PMC4850481 DOI: 10.1038/srep25268] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 04/14/2016] [Indexed: 01/07/2023] Open
Abstract
The regulatory transcriptional factor PATZ1 is constantly downregulated in human thyroid cancer where it acts as a tumour suppressor by targeting p53-dependent genes involved in Epithelial-Mesenchymal Transition and cell migration. The aim of the present work was to elucidate the upstream signalling mechanisms regulating PATZ1 expression in thyroid cancer cells. The bioinformatics search for microRNAs able to potentially target PATZ1 led to the identification of several miRNAs. Among them we focused on the miR-29b since it was found upregulated in rat thyroid differentiated cells transformed by the Ha-Ras oncogene towards a high proliferating and high migratory phenotype resembling that of anaplastic carcinomas. Functional assays confirmed PATZ1 as a target of miR-29b, and, consistently, an inverse correlation between miR-29b and PATZ1 protein levels was found upon induction of Ha-Ras oncogene expression in these cells. Interestingly, restoration of PATZ1 expression in rat thyroid cells stably expressing the Ha-Ras oncogene decreased cell proliferation and migration, indicating a key role of PATZ1 in Ras-driven thyroid transformation. Together, these results suggest a novel mechanism regulating PATZ1 expression based on the upregulation of miR-29b expression induced by Ras oncogene.
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28
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Rönn T, Volkov P, Gillberg L, Kokosar M, Perfilyev A, Jacobsen AL, Jørgensen SW, Brøns C, Jansson PA, Eriksson KF, Pedersen O, Hansen T, Groop L, Stener-Victorin E, Vaag A, Nilsson E, Ling C. Impact of age, BMI and HbA1c levels on the genome-wide DNA methylation and mRNA expression patterns in human adipose tissue and identification of epigenetic biomarkers in blood. Hum Mol Genet 2015; 24:3792-813. [PMID: 25861810 DOI: 10.1093/hmg/ddv124] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 04/07/2015] [Indexed: 01/03/2023] Open
Abstract
Increased age, BMI and HbA1c levels are risk factors for several non-communicable diseases. However, the impact of these factors on the genome-wide DNA methylation pattern in human adipose tissue remains unknown. We analyzed the DNA methylation of ∼480 000 sites in human adipose tissue from 96 males and 94 females and related methylation to age, BMI and HbA1c. We also compared epigenetic signatures in adipose tissue and blood. Age was significantly associated with both altered DNA methylation and expression of 1050 genes (e.g. FHL2, NOX4 and PLG). Interestingly, many reported epigenetic biomarkers of aging in blood, including ELOVL2, FHL2, KLF14 and GLRA1, also showed significant correlations between adipose tissue DNA methylation and age in our study. The most significant association between age and adipose tissue DNA methylation was found upstream of ELOVL2. We identified 2825 genes (e.g. FTO, ITIH5, CCL18, MTCH2, IRS1 and SPP1) where both DNA methylation and expression correlated with BMI. Methylation at previously reported HIF3A sites correlated significantly with BMI in females only. HbA1c (range 28-46 mmol/mol) correlated significantly with the methylation of 711 sites, annotated to, for example, RAB37, TICAM1 and HLA-DPB1. Pathway analyses demonstrated that methylation levels associated with age and BMI are overrepresented among genes involved in cancer, type 2 diabetes and cardiovascular disease. Our results highlight the impact of age, BMI and HbA1c on epigenetic variation of candidate genes for obesity, type 2 diabetes and cancer in human adipose tissue. Importantly, we demonstrate that epigenetic biomarkers in blood can mirror age-related epigenetic signatures in target tissues for metabolic diseases such as adipose tissue.
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Affiliation(s)
- Tina Rönn
- Department of Clinical Sciences, Epigenetics and Diabetes and
| | - Petr Volkov
- Department of Clinical Sciences, Epigenetics and Diabetes and
| | - Linn Gillberg
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark
| | - Milana Kokosar
- Department of Physiology/Endocrinology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Medicinaregatan 11, Box 434, 405 30 Gothenburg, Sweden
| | | | - Anna Louisa Jacobsen
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark
| | - Sine W Jørgensen
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark, Steno Diabetes Center, Niels Steensensvej 2, DK-2820 Gentofte, Denmark
| | - Charlotte Brøns
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark
| | - Per-Anders Jansson
- Wallenberg Laboratory, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Karl-Fredrik Eriksson
- Department of Clinical Sciences, Vascular Diseases, Lund University, 205 02 Malmö, Sweden
| | - Oluf Pedersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Universitetsparken 1, 2100 Copenhagen, Denmark and
| | - Torben Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Universitetsparken 1, 2100 Copenhagen, Denmark and
| | - Leif Groop
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, CRC, 205 02 Malmö, Sweden
| | - Elisabet Stener-Victorin
- Department of Physiology/Endocrinology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Medicinaregatan 11, Box 434, 405 30 Gothenburg, Sweden, Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Allan Vaag
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark
| | - Emma Nilsson
- Department of Clinical Sciences, Epigenetics and Diabetes and Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark
| | - Charlotte Ling
- Department of Clinical Sciences, Epigenetics and Diabetes and
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29
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Lim JH. Zinc finger and BTB domain-containing protein 3 is essential for the growth of cancer cells. BMB Rep 2015; 47:405-10. [PMID: 24856827 PMCID: PMC4163853 DOI: 10.5483/bmbrep.2014.47.7.075] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Indexed: 11/23/2022] Open
Abstract
ZBTB3 belongs to the Zinc finger and BTB/POZ domain containing transcription factor family; however, its biological role has rarely been studied. We demonstrate for the first time, to our knowledge, that ZBTB3 is an essential factor for cancer cell growth via the regulation of the ROS detoxification pathway. Suppression of ZBTB3 using two different short hairpin RNAs in human melanoma, lung carcinoma, and breast carcinoma results in diminished cell growth. In addition, we found that suppression of ZBTB3 activates a caspase cascade, including caspase-9, -3, and PARP leading to cellular apoptosis, resulting from failed ROS detoxification. We identified that ZBTB3 plays an important role in the gene expression of ROS detoxification enzymes. Our results reveal that ZBTB3 may play a critical role in cancer cell growth via the ROS detoxification system. Therefore, therapeutic strategies that target ZBTB3 could be used in selective cancer treatments. [BMB Reports 2014; 47(7): 405-410]
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Affiliation(s)
- Ji-Hong Lim
- Department of Biomedical Chemistry, College of Biomedical and Health Science, Konkuk University, Chungju 380-701, Korea
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30
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Chiappetta G, Valentino T, Vitiello M, Pasquinelli R, Monaco M, Palma G, Sepe R, Luciano A, Pallante P, Palmieri D, Aiello C, Rea D, Losito SN, Arra C, Fusco A, Fedele M. PATZ1 acts as a tumor suppressor in thyroid cancer via targeting p53-dependent genes involved in EMT and cell migration. Oncotarget 2015; 6:5310-23. [PMID: 25595894 PMCID: PMC4467151 DOI: 10.18632/oncotarget.2776] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 11/18/2014] [Indexed: 02/06/2023] Open
Abstract
PATZ1, a POZ-Zinc finger protein, is emerging as an important regulator of development and cancer, but its cancer-related function as oncogene or tumor-suppressor is still debated. Here, we investigated its possible role in thyroid carcinogenesis. We demonstrated PATZ1 is down-regulated in thyroid carcinomas compared to normal thyroid tissues, with an inverse correlation to the degree of cell differentiation. In fact, PATZ1 expression was significantly further down-regulated in poorly differentiated and anaplastic thyroid cancers compared to the papillary histotype, and it resulted increasingly delocalized from the nucleus to the cytoplasm proceeding from differentiated to undifferentiated thyroid carcinomas. Restoration of PATZ1 expression in three thyroid cancer-derived cell lines, all characterized by fully dedifferentiated cells, significantly inhibited their malignant behaviors, including in vitro proliferation, anchorage-independent growth, migration and invasion, as well as in vivo tumor growth. Consistent with recent studies showing a role for PATZ1 in the p53 pathway, we showed that ectopic expression of PATZ1 in thyroid cancer cells activates p53-dependent pathways opposing epithelial-mesenchymal transition and cell migration to prevent invasiveness. These results provide insights into a potential tumor-suppressor role of PATZ1 in thyroid cancer progression, and thus may have potential clinical relevance for the prognosis and therapy of thyroid cancer.
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MESH Headings
- Animals
- Apoptosis
- Blotting, Western
- Carcinoma, Papillary/genetics
- Carcinoma, Papillary/metabolism
- Carcinoma, Papillary/pathology
- Cell Movement
- Cell Proliferation
- Chromatin Immunoprecipitation
- Epithelial-Mesenchymal Transition
- Female
- Genes, Tumor Suppressor
- Humans
- Immunoenzyme Techniques
- Kruppel-Like Transcription Factors/genetics
- Kruppel-Like Transcription Factors/metabolism
- Mice
- Mice, Nude
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Serpins/genetics
- Serpins/metabolism
- Thyroid Carcinoma, Anaplastic/genetics
- Thyroid Carcinoma, Anaplastic/metabolism
- Thyroid Carcinoma, Anaplastic/pathology
- Thyroid Gland/metabolism
- Thyroid Gland/pathology
- Thyroid Neoplasms/genetics
- Thyroid Neoplasms/metabolism
- Thyroid Neoplasms/pathology
- Tumor Cells, Cultured
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Protein p53/metabolism
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Gennaro Chiappetta
- Department of Experimental Oncology, Functional Genomic Unit, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Teresa Valentino
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Counsil (CNR), 80131 Naples, Italy
| | - Michela Vitiello
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Counsil (CNR), 80131 Naples, Italy
| | - Rosa Pasquinelli
- Department of Experimental Oncology, Functional Genomic Unit, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Mario Monaco
- Department of Experimental Oncology, Functional Genomic Unit, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Giuseppe Palma
- Animal Facility, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Romina Sepe
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Counsil (CNR), 80131 Naples, Italy
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples “Federico II”, 80131 Naples, Italy
| | - Antonio Luciano
- Animal Facility, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Pierlorenzo Pallante
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Counsil (CNR), 80131 Naples, Italy
| | - Dario Palmieri
- Departments of Molecular Virology, Immunology and Human Genetics, Comprehensive Cancer Center, Ohio State University, Columbus, OH 43210, USA
| | - Concetta Aiello
- Department of Experimental Oncology, Functional Genomic Unit, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Domenica Rea
- Animal Facility, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Simona Nunzia Losito
- Department of Experimental Oncology, Functional Genomic Unit, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Claudio Arra
- Animal Facility, National Cancer Institute “Fondazione Giovanni Pascale”, IRCCS, 80131 Naples, Italy
| | - Alfredo Fusco
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Counsil (CNR), 80131 Naples, Italy
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples “Federico II”, 80131 Naples, Italy
| | - Monica Fedele
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Counsil (CNR), 80131 Naples, Italy
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PATZ1 Is a DNA Damage-Responsive Transcription Factor That Inhibits p53 Function. Mol Cell Biol 2015; 35:1741-53. [PMID: 25755280 DOI: 10.1128/mcb.01475-14] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 02/25/2015] [Indexed: 02/07/2023] Open
Abstract
Insults to cellular health cause p53 protein accumulation, and loss of p53 function leads to tumorigenesis. Thus, p53 has to be tightly controlled. Here we report that the BTB/POZ domain transcription factor PATZ1 (MAZR), previously known for its transcriptional suppressor functions in T lymphocytes, is a crucial regulator of p53. The novel role of PATZ1 as an inhibitor of the p53 protein marks its gene as a proto-oncogene. PATZ1-deficient cells have reduced proliferative capacity, which we assessed by transcriptome sequencing (RNA-Seq) and real-time cell growth rate analysis. PATZ1 modifies the expression of p53 target genes associated with cell proliferation gene ontology terms. Moreover, PATZ1 regulates several genes involved in cellular adhesion and morphogenesis. Significantly, treatment with the DNA damage-inducing drug doxorubicin results in the loss of the PATZ1 transcription factor as p53 accumulates. We find that PATZ1 binds to p53 and inhibits p53-dependent transcription activation. We examine the mechanism of this functional inhibitory interaction and demonstrate that PATZ1 excludes p53 from DNA binding. This study documents PATZ1 as a novel player in the p53 pathway.
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32
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The dosage of Patz1 modulates reprogramming process. Sci Rep 2014; 4:7519. [PMID: 25515777 PMCID: PMC4268633 DOI: 10.1038/srep07519] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 11/26/2014] [Indexed: 01/11/2023] Open
Abstract
The acquisition of pluripotent cells can be achieved by combined overexpression of transcription factors Oct4, Klf4, Sox2 and c-Myc in somatic cells. This cellular reprogramming process overcomes various barriers to re-activate pluripotency genes and re-acquire the highly dynamic pluripotent chromatin status. Many genetic and epigenetic factors are essentially involved in the reprogramming process. We previously reported that Patz1 is required for maintenance of ES cell identity. Here we report that Patz1 plays an inhibitory role in OKSM-induced reprogramming process since more iPS colonies can be induced from Patz1+/− MEFs than wild type MEFs; while the addition of Patz1 significantly repressed reprogramming efficiency. Patz1+/− MEFs can surpass the senescence barrier of Ink4a/Arf locus, thus enhancing iPS colonies formation. Moreover, Patz1+/− MEFs displayed higher levels of acetylated histone H3, H3K4me2, H3K4me3, H3K36me3 and lower levels of histone H3K9me3 and HP1α, indicating that heterozygous knockout of Patz1 results in a globally open chromatin which is more accessible for transcriptional activation. However, Patz1−/− MEFs gave the lowest reprogramming efficiency which may result from cell senescence trigged by up-regulated Ink4a/Arf locus. Together, we have demonstrated that the dosage of Patz1 modulates reprogramming process via significantly influencing cell senescence, proliferation and chromatin structure.
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Glaab E, Schneider R. Comparative pathway and network analysis of brain transcriptome changes during adult aging and in Parkinson's disease. Neurobiol Dis 2014; 74:1-13. [PMID: 25447234 DOI: 10.1016/j.nbd.2014.11.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 09/23/2014] [Accepted: 11/03/2014] [Indexed: 01/19/2023] Open
Abstract
Aging is considered as one of the main factors promoting the risk for Parkinson's disease (PD), and common mechanisms of dopamine neuron degeneration in aging and PD have been proposed in recent years. Here, we use a statistical meta-analysis of human brain transcriptomics data to investigate potential mechanistic relationships between adult brain aging and PD pathogenesis at the pathway and network level. The analyses identify statistically significant shared pathway and network alterations in aging and PD and an enrichment in PD-associated sequence variants from genome-wide association studies among the jointly deregulated genes. We find robust discriminative patterns for groups of functionally related genes with potential applications as combined risk biomarkers to detect aging- and PD-linked oxidative stress, e.g., a consistent over-expression of metallothioneins matching with findings in previous independent studies. Interestingly, analyzing the regulatory network and mouse knockout expression data for NR4A2, a transcription factor previously associated with rare mutations in PD and here found as the most significantly under-expressed gene in PD among the jointly altered genes, suggests that aging-related NR4A2 expression changes may increase PD risk via downstream effects similar to disease-linked mutations and to expression changes in sporadic PD. Overall, the analyses suggest mechanistic explanations for the age-dependence of PD risk and reveal significant and robust shared process alterations with potential applications in biomarker development for pre-symptomatic risk assessment or early stage diagnosis.
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Affiliation(s)
- Enrico Glaab
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Luxembourg.
| | - Reinhard Schneider
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Luxembourg
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Identification and Expression Profiling of the BTB Domain-Containing Protein Gene Family in the Silkworm, Bombyx mori. Int J Genomics 2014; 2014:865065. [PMID: 24895545 PMCID: PMC4033408 DOI: 10.1155/2014/865065] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 04/05/2014] [Accepted: 04/07/2014] [Indexed: 11/30/2022] Open
Abstract
The BTB domain is a conserved protein-protein interaction motif. In this study, we identified 56 BTB domain-containing protein genes in the silkworm, in addition to 46 in the honey bee, 55 in the red flour beetle, and 53 in the monarch butterfly. Silkworm BTB protein genes were classified into nine subfamilies according to their domain architecture, and most of them could be mapped on the different chromosomes. Phylogenetic analysis suggests that silkworm BTB protein genes may have undergone a duplication event in three subfamilies: BTB-BACK-Kelch, BTB-BACK-PHR, and BTB-FLYWCH. Comparative analysis demonstrated that the orthologs of each of 13 BTB protein genes present a rigorous orthologous relationship in the silkworm and other surveyed insects, indicating conserved functions of these genes during insect evolution. Furthermore, several silkworm BTB protein genes exhibited sex-specific expression in larval tissues or at different stages during metamorphosis. These findings not only contribute to a better understanding of the evolution of insect BTB protein gene families but also provide a basis for further investigation of the functions of BTB protein genes in the silkworm.
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35
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Dhaouadi N, Li JY, Feugier P, Gustin MP, Dab H, Kacem K, Bricca G, Cerutti C. Computational identification of potential transcriptional regulators of TGF-ß1 in human atherosclerotic arteries. Genomics 2014; 103:357-70. [PMID: 24819318 DOI: 10.1016/j.ygeno.2014.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 03/17/2014] [Accepted: 05/03/2014] [Indexed: 11/17/2022]
Abstract
TGF-ß is protective in atherosclerosis but deleterious in metastatic cancers. Our aim was to determine whether TGF-ß transcriptional regulation is tissue-specific in early atherosclerosis. The computational methods included 5 steps: (i) from microarray data of human atherosclerotic carotid tissue, to identify the 10 best co-expressed genes with TGFB1 (TGFB1 gene cluster), (ii) to choose the 11 proximal promoters, (iii) to predict the TFBS shared by the promoters, (iv) to identify the common TFs co-expressed with the TGFB1 gene cluster, and (v) to compare the common TFs in the early lesions to those identified in advanced atherosclerotic lesions and in various cancers. Our results show that EGR1, SP1 and KLF6 could be responsible for TGFB1 basal expression, KLF6 appearing specific to atherosclerotic lesions. Among the TFs co-expressed with the gene cluster, transcriptional activators (SLC2A4RG, MAZ) and repressors (ZBTB7A, PATZ1, ZNF263) could be involved in the fine-tuning of TGFB1 expression in atherosclerosis.
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Affiliation(s)
- Nedra Dhaouadi
- EA 4173 Génomique Fonctionnelle de l'Hypertension Artérielle, Université de Lyon, Université Lyon 1, Hôpital Nord-Ouest Villefranche-sur-Saône, 8 avenue Rockefeller, F-69373 Lyon, France; Unité de Physiologie Intégrée, Laboratoire de Pathologies Vasculaires, Université de Carthage, Faculté des Sciences de Bizerte, Bizerte, Tunisia
| | - Jacques-Yuan Li
- EA 4173 Génomique Fonctionnelle de l'Hypertension Artérielle, Université de Lyon, Université Lyon 1, Hôpital Nord-Ouest Villefranche-sur-Saône, 8 avenue Rockefeller, F-69373 Lyon, France
| | - Patrick Feugier
- EA 4173 Génomique Fonctionnelle de l'Hypertension Artérielle, Université de Lyon, Université Lyon 1, Hôpital Nord-Ouest Villefranche-sur-Saône, 8 avenue Rockefeller, F-69373 Lyon, France
| | - Marie-Paule Gustin
- EA 4173 Génomique Fonctionnelle de l'Hypertension Artérielle, Université de Lyon, Université Lyon 1, Hôpital Nord-Ouest Villefranche-sur-Saône, 8 avenue Rockefeller, F-69373 Lyon, France
| | - Houcine Dab
- Unité de Physiologie Intégrée, Laboratoire de Pathologies Vasculaires, Université de Carthage, Faculté des Sciences de Bizerte, Bizerte, Tunisia
| | - Kamel Kacem
- Unité de Physiologie Intégrée, Laboratoire de Pathologies Vasculaires, Université de Carthage, Faculté des Sciences de Bizerte, Bizerte, Tunisia
| | - Giampiero Bricca
- EA 4173 Génomique Fonctionnelle de l'Hypertension Artérielle, Université de Lyon, Université Lyon 1, Hôpital Nord-Ouest Villefranche-sur-Saône, 8 avenue Rockefeller, F-69373 Lyon, France
| | - Catherine Cerutti
- EA 4173 Génomique Fonctionnelle de l'Hypertension Artérielle, Université de Lyon, Université Lyon 1, Hôpital Nord-Ouest Villefranche-sur-Saône, 8 avenue Rockefeller, F-69373 Lyon, France.
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Clinical update on cancer: molecular oncology of head and neck cancer. Cell Death Dis 2014; 5:e1018. [PMID: 24457962 PMCID: PMC4040714 DOI: 10.1038/cddis.2013.548] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/04/2013] [Accepted: 12/05/2013] [Indexed: 02/07/2023]
Abstract
Head and neck cancers encompass a heterogeneous group of tumours that, in general, are biologically aggressive in nature. These cancers remain difficult to treat and treatment can cause severe, long-term side effects. For patients who are not cured by surgery and/or (chemo)radiotherapy, there are few effective treatment options. Targeted therapies and predictive biomarkers are urgently needed in order to improve the management and minimise the treatment toxicity, and to allow selection of patients who are likely to benefit from both nonselective and targeted therapies. This clinical update aims to provide an insight into the current understanding of the molecular pathogenesis of the disease, and explores the novel therapies under development and in clinical trials.
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PATZ1 interacts with p53 and regulates expression of p53-target genes enhancing apoptosis or cell survival based on the cellular context. Cell Death Dis 2013; 4:e963. [PMID: 24336083 PMCID: PMC3877567 DOI: 10.1038/cddis.2013.500] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 11/06/2013] [Accepted: 11/13/2013] [Indexed: 01/08/2023]
Abstract
PATZ1 is a transcriptional factor functioning either as an activator or a repressor of gene transcription depending upon the cellular context. It appears to have a dual oncogenic/anti-oncogenic activity. Indeed, it is overexpressed in colon carcinomas, and its silencing inhibits colon cancer cell proliferation or increases sensitivity to apoptotic stimuli of glioma cells, suggesting an oncogenic role. Conversely, the development of B-cell lymphomas, sarcomas, hepatocellular carcinomas and lung adenomas in Patz1-knockout (ko) mice supports its tumour suppressor function. PATZ1 role in mouse lymphomagenesis is mainly because of the involvement of PATZ1 in BCL6-negative autoregulation. However, this does not exclude that PATZ1 may be involved in tumorigenesis by other mechanisms. Here, we report that PATZ1 interacts with the tumour suppressor p53 and binds p53-dependent gene promoters, including those of BAX, CDKN1A and MDM2. Knockdown of PATZ1 in HEK293 cells reduces promoter activity of these genes and inhibits their expression, suggesting a role of PATZ in enhancing p53 transcriptional activity. Consistently, Patz1-ko mouse embryonic fibroblasts (MEFs) show decreased expression of Bax, Cdkn1a and Mdm2 compared with wild-type (wt) MEFs. Moreover, Patz1-ko MEFs show a decreased percentage of apoptotic cells, either spontaneous or induced by treatment with 5-fluorouracil (5FU), compared with wt controls, suggesting a pro-apoptotic role for PATZ1 in these cells. However, PATZ1 binds p53-target genes also independently from p53, exerting, in the absence of p53, an opposite function on their expression. Indeed, knockdown of PATZ1 in p53-null osteosarcoma cells upregulates BAX expression and decreases survival of 5FU-treated cells, then suggesting an anti-apoptotic role of PATZ1 in p53-null cancer cells. Therefore, these data support a PATZ1 tumour-suppressive function based on its ability to enhance p53-dependent transcription and apoptosis. Conversely, its opposite and anti-apoptotic role in p53-null cancer cells provides the perspective of PATZ1 silencing as a possible adjuvant in the treatment of p53-null cancer.
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Amelio I, Markert EK, Rufini A, Antonov AV, Sayan BS, Tucci P, Agostini M, Mineo TC, Levine AJ, Melino G. p73 regulates serine biosynthesis in cancer. Oncogene 2013; 33:5039-46. [DOI: 10.1038/onc.2013.456] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Revised: 09/19/2013] [Accepted: 09/24/2013] [Indexed: 12/25/2022]
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Abramova A, Sakaguchi S, Schebesta A, Hassan H, Boucheron N, Valent P, Roers A, Ellmeier W. The transcription factor MAZR preferentially acts as a transcriptional repressor in mast cells and plays a minor role in the regulation of effector functions in response to FcεRI stimulation. PLoS One 2013; 8:e77677. [PMID: 24204913 PMCID: PMC3804165 DOI: 10.1371/journal.pone.0077677] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 09/03/2013] [Indexed: 11/19/2022] Open
Abstract
Mast cells are key players in type I hypersensitivity reactions in humans and mice and their activity has to be tightly controlled. Previous studies implicated the transcription factor MAZR in the regulation of mast cell function. To study the role of MAZR in mast cells, we generated a conditional Mazr allele and crossed Mazr (F/F) mice with the Vav-iCre deleter strain, which is active in all hematopoietic cells. MAZR-null BM-derived mast cells (BMMC) were phenotypically indistinguishable from wild-type BMMCs, although the numbers of IL-3 generated Mazr (F/F) Vav-iCre BMMCs were reduced in comparison to Mazr (F/F) BMMCs, showing that MAZR is required for the efficient generation of BMMC in vitro. A gene expression analysis revealed that MAZR-deficiency resulted in the dysregulation of 128 genes, with more genes up- than down-regulated in the absence of MAZR, indicating that MAZR acts as a transcriptional repressor in mast cells. Among the up-regulated genes were the chemokines Ccl5, Cxcl10, Cxcl12, the chemokine receptor Ccr5 and the cytokine IL18, suggesting an immunoregulatory role for MAZR in mast cells. Enforced expression of MAZR in mature Mazr-deficient BMMCs rescued the altered expression pattern of some genes tested, suggesting direct regulation of these genes by MAZR. Upon FcεRI stimulation, Mazr expression was transiently down-regulated in BMMCs. However, early and late effector functions in response to FcεRI-mediated stimulation were not impaired in the absence of MAZR, with the exception of IL-6, which was slightly decreased. Taken together, out data indicate that MAZR preferentially acts as a transcriptional repressor in mast cells, however MAZR plays only a minor role in the transcriptional networks that regulate early and late effector functions in mast cells in response to FcεRI stimulation.
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Affiliation(s)
- Anastasia Abramova
- Division of Immunobiology, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Shinya Sakaguchi
- Division of Immunobiology, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Alexandra Schebesta
- Division of Immunobiology, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Hammad Hassan
- Division of Immunobiology, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Nicole Boucheron
- Division of Immunobiology, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Peter Valent
- Division of Hematology and Hemostaseology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | - Axel Roers
- Institute for Immunology, University of Technology Dresden, Medical Faculty Carl-Gustav Carus, Dresden, Germany
| | - Wilfried Ellmeier
- Division of Immunobiology, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- * E-mail:
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Chillemi G, Davidovich P, D'Abramo M, Mametnabiev T, Garabadzhiu AV, Desideri A, Melino G. Molecular dynamics of the full-length p53 monomer. Cell Cycle 2013; 12:3098-108. [PMID: 23974096 DOI: 10.4161/cc.26162] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The p53 protein is frequently mutated in a very large proportion of human tumors, where it seems to acquire gain-of-function activity that facilitates tumor onset and progression. A possible mechanism is the ability of mutant p53 proteins to physically interact with other proteins, including members of the same family, namely p63 and p73, inactivating their function. Assuming that this interaction might occurs at the level of the monomer, to investigate the molecular basis for this interaction, here, we sample the structural flexibility of the wild-type p53 monomeric protein. The results show a strong stability up to 850 ns in the DNA binding domain, with major flexibility in the N-terminal transactivations domains (TAD1 and TAD2) as well as in the C-terminal region (tetramerization domain). Several stable hydrogen bonds have been detected between N-terminal or C-terminal and DNA binding domain, and also between N-terminal and C-terminal. Essential dynamics analysis highlights strongly correlated movements involving TAD1 and the proline-rich region in the N-terminal domain, the tetramerization region in the C-terminal domain; Lys120 in the DNA binding region. The herein presented model is a starting point for further investigation of the whole protein tetramer as well as of its mutants.
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41
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Valentino T, Palmieri D, Vitiello M, Simeone A, Palma G, Arra C, Chieffi P, Chiariotti L, Fusco A, Fedele M. Embryonic defects and growth alteration in mice with homozygous disruption of the Patz1 gene. J Cell Physiol 2013; 228:646-53. [PMID: 22886576 DOI: 10.1002/jcp.24174] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 07/31/2012] [Indexed: 11/09/2022]
Abstract
PATZ1 is an emerging cancer-related gene coding for a POZ/AT-hook/kruppel Zinc finger transcription factor, which is lost or misexpressed in human neoplasias. Here, we investigated its role in development exploring wild-type and Patz1-knockout mice during embryogenesis. We report that the Patz1 gene is ubiquitously expressed at early stages of development and becomes more restricted at later stages, with high levels of expression in actively proliferating neuroblasts belonging to the ventricular zones of the central nervous system (CNS). The analysis of embryos in which Patz1 was disrupted revealed the presence of severe defects in the CNS and in the cardiac outflow tract, which eventually lead to a pre-mature in utero death during late gestation or soon after birth. Moreover, the Patz1-null mice showed a general growth retardation, which was consistent with the slower growth rate and the increased susceptibility to senescence of Patz1(-/-) mouse embryonic fibroblasts (MEFs) compared to wild-type controls. Therefore, these results indicate a critical role of PATZ1 in the control of cell growth and embryonic development.
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Affiliation(s)
- Teresa Valentino
- Istituto di Endocrinologia ed Oncologia Sperimentale del CNR and Dipartimento di Biologia e Patologia Cellulare e Molecolare, Università di Napoli Federico II, Naples, Italy
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42
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Heo JI, Cho JH, Kim JR. HJURP regulates cellular senescence in human fibroblasts and endothelial cells via a p53-dependent pathway. J Gerontol A Biol Sci Med Sci 2013; 68:914-25. [PMID: 23292286 DOI: 10.1093/gerona/gls257] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Holliday junction recognition protein (HJURP), a centromere protein-A (CENP-A) histone chaperone, mediates centromere-specific assembly of CENP-A nucleosome, contributing to high-fidelity chromosome segregation during cell division. However, the role of HJURP in cellular senescence of human primary cells remains unclear. We found that the expression levels of HJURP decreased in human dermal fibroblasts and umbilical vein endothelial cells in replicative or premature senescence. Ectopic expression of HJURP in senescent cells partially overcame cell senescence. Conversely, downregulation of HJURP in young cells led to premature senescence. p53 knockdown, but not p16 knockdown, abolished senescence phenotypes caused by HJURP reduction. These data suggest that HJURP plays an important role in the regulation of cellular senescence through a p53-dependent pathway and might contribute to tissue or organismal aging and protection of cellular transformation.
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Affiliation(s)
- Jong-Ik Heo
- Department of Biochemistry and Molecular Biology, Aging-associated Vascular Disease Research Center, College of Medicine, Yeungnam University, Daegu, Republic of Korea
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Mathieu V, de Lassalle EM, Toelen J, Mohr T, Bellahcène A, Van Goietsenoven G, Verschuere T, Bouzin C, Debyser Z, De Vleeschouwer S, Van Gool S, Poirier F, Castronovo V, Kiss R, Feron O. Galectin-1 in Melanoma Biology and Related Neo-Angiogenesis Processes. J Invest Dermatol 2012; 132:2245-54. [DOI: 10.1038/jid.2012.142] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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