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Zhang G, Lu J, Zheng J, Mei S, Li H, Zhang X, Ping A, Gao S, Fang Y, Yu J. Spi1 regulates the microglial/macrophage inflammatory response via the PI3K/AKT/mTOR signaling pathway after intracerebral hemorrhage. Neural Regen Res 2024; 19:161-170. [PMID: 37488863 PMCID: PMC10479839 DOI: 10.4103/1673-5374.375343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/27/2023] [Accepted: 04/02/2023] [Indexed: 07/26/2023] Open
Abstract
Preclinical and clinical studies have shown that microglia and macrophages participate in a multiphasic brain damage repair process following intracerebral hemorrhage. The E26 transformation-specific sequence-related transcription factor Spi1 regulates microglial/macrophage commitment and maturation. However, the effect of Spi1 on intracerebral hemorrhage remains unclear. In this study, we found that Spi1 may regulate recovery from the neuroinflammation and neurofunctional damage caused by intracerebral hemorrhage by modulating the microglial/macrophage transcriptome. We showed that high Spi1 expression in microglia/macrophages after intracerebral hemorrhage is associated with the activation of many pathways that promote phagocytosis, glycolysis, and autophagy, as well as debris clearance and sustained remyelination. Notably, microglia with higher levels of Spi1 expression were characterized by activation of pathways associated with a variety of hemorrhage-related cellular processes, such as complement activation, angiogenesis, and coagulation. In conclusion, our results suggest that Spi1 plays a vital role in the microglial/macrophage inflammatory response following intracerebral hemorrhage. This new insight into the regulation of Spi1 and its target genes may advance our understanding of neuroinflammation in intracerebral hemorrhage and provide therapeutic targets for patients with intracerebral hemorrhage.
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Affiliation(s)
- Guoqiang Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Jianan Lu
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Jingwei Zheng
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Shuhao Mei
- Department of Neurosurgery, Huashan Hospital of Fudan University School of Medicine, Shanghai, China
| | - Huaming Li
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Xiaotao Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - An Ping
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Shiqi Gao
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Yuanjian Fang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Jun Yu
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, Zhejiang Province, China
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang Province, China
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2
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Yu ZP, Jian ZY, Sun AN, Chen BA, Ge Z. The CSN5/HSF/SPI1/PU.1 Axis Regulates Cell Proliferation in Hypocellular Myelodysplastic Syndrome Patients. J Pediatr Hematol Oncol 2023; 45:e873-e878. [PMID: 37526438 PMCID: PMC10521780 DOI: 10.1097/mph.0000000000002712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 05/20/2023] [Indexed: 08/02/2023]
Abstract
OBJECTIVE This study explored the relationship between the activation of the jak/stat3 signaling pathway and the CSN5 gene transcript and protein expression levels in the hematopoietic stem cells of patients with myelodysplastic syndromes (MDSs). This study also aimed to investigate the correlation between the expression level of CSN5 and the deubiquitination of HSF1, as well as the transcript level of the spi1/pu.1 genes to explore the pathogenesis of MDS. MATERIALS AND METHODS We isolated cells from normal individuals and MDS patients, and the mRNA and protein expression levels of spi1/pu.1 in cd34+ cells (hematopoietic stem cells) were measured by PCR and western blotting, respectively. A ChIP assay was used to detect the binding of HSF1 to the spi1/pu.1 promoter in cd34+ cells. The ubiquitination of HSF1 in cd34+ cells was detected by CO-IP. The binding of HSF1 and Fbxw7α was detected in in cd34+ cells by CO-IP. The binding of HSF1 and CSN5 was evaluated. A luciferase reporter assay was used to detect the effect of STAT3 on CSN5 promoter activation in cd34+ cells. Western blotting was used to detect the phosphorylation of STAT3 in cd34+ cells of MDS patients. The binding of STAT3 and C/EBP beta in cd34+ cells was detected by CO-IP. RESULTS Inhibition of SPI1/PU.1 expression was observed in MDS samples with low proliferation ability. Further experiments proved that phosphorylation of STAT3 affected CSN5 function and mediated the ubiquitination of HSF, the upstream regulator of SPI1/PU.1 transcription, which led to the inhibition of SPI1/PU.1 expression. Restoration of CSN5 rescued the inhibition of HSF1 ubiquitination, causing SPI1/PU.1 transcription to resume and increasing SPI1/PU.1 expression, promoting the recovery of cell proliferation in hypocellular MDS. CONCLUSIONS Our research revealed the regulatory role of the CSN5/HSF/SPI1/PU.1 axis in hypocellular MDS, providing a probable target for clinical intervention.
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Affiliation(s)
- Zheng-Ping Yu
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing
| | - Zi-Ying Jian
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing
| | - Ai-Ning Sun
- Hematology Division, Suzhou Medical University, Suzhou, China
| | - Bao-An Chen
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing
| | - Zheng Ge
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing
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3
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Heat-Shock Proteins in Leukemia and Lymphoma: Multitargets for Innovative Therapeutic Approaches. Cancers (Basel) 2023; 15:cancers15030984. [PMID: 36765939 PMCID: PMC9913431 DOI: 10.3390/cancers15030984] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/27/2023] [Accepted: 01/31/2023] [Indexed: 02/08/2023] Open
Abstract
Heat-shock proteins (HSPs) are powerful chaperones that provide support for cellular functions under stress conditions but also for the homeostasis of basic cellular machinery. All cancer cells strongly rely on HSPs, as they must continuously adapt to internal but also microenvironmental stresses to survive. In solid tumors, HSPs have been described as helping to correct the folding of misfolded proteins, sustain oncogenic pathways, and prevent apoptosis. Leukemias and lymphomas also overexpress HSPs, which are frequently associated with resistance to therapy. HSPs have therefore been proposed as new therapeutic targets. Given the specific biology of hematological malignancies, it is essential to revise their role in this field, providing a more adaptable and comprehensive picture that would help design future clinical trials. To that end, this review will describe the different pathways and functions regulated by HSP27, HSP70, HSP90, and, not least, HSP110 in leukemias and lymphomas.
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4
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Choudhury A, Ratna A, Lim A, Sebastian RM, Moore CL, Filliol AA, Bledsoe J, Dai C, Schwabe RF, Shoulders MD, Mandrekar P. Loss of heat shock factor 1 promotes hepatic stellate cell activation and drives liver fibrosis. Hepatol Commun 2022; 6:2781-2797. [PMID: 35945902 PMCID: PMC9512451 DOI: 10.1002/hep4.2058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 06/24/2022] [Accepted: 07/05/2022] [Indexed: 11/26/2022] Open
Abstract
Liver fibrosis is an aberrant wound healing response that results from chronic injury and is mediated by hepatocellular death and activation of hepatic stellate cells (HSCs). While induction of oxidative stress is well established in fibrotic livers, there is limited information on stress‐mediated mechanisms of HSC activation. Cellular stress triggers an adaptive defense mechanism via master protein homeostasis regulator, heat shock factor 1 (HSF1), which induces heat shock proteins to respond to proteotoxic stress. Although the importance of HSF1 in restoring cellular homeostasis is well‐established, its potential role in liver fibrosis is unknown. Here, we show that HSF1 messenger RNA is induced in human cirrhotic and murine fibrotic livers. Hepatocytes exhibit nuclear HSF1, whereas stellate cells expressing alpha smooth muscle actin do not express nuclear HSF1 in human cirrhosis. Interestingly, despite nuclear HSF1, murine fibrotic livers did not show induction of HSF1 DNA binding activity compared with controls. HSF1‐deficient mice exhibit augmented HSC activation and fibrosis despite limited pro‐inflammatory cytokine response and display delayed fibrosis resolution. Stellate cell and hepatocyte‐specific HSF1 knockout mice exhibit higher induction of profibrogenic response, suggesting an important role for HSF1 in HSC activation and fibrosis. Stable expression of dominant negative HSF1 promotes fibrogenic activation of HSCs. Overactivation of HSF1 decreased phosphorylation of JNK and prevented HSC activation, supporting a protective role for HSF1. Our findings identify an unconventional role for HSF1 in liver fibrosis. Conclusion: Our results show that deficiency of HSF1 is associated with exacerbated HSC activation promoting liver fibrosis, whereas activation of HSF1 prevents profibrogenic HSC activation.
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Affiliation(s)
- Asmita Choudhury
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Anuradha Ratna
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Arlene Lim
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Rebecca M Sebastian
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Christopher L Moore
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Aveline A Filliol
- Institute of Human Nutrition, Columbia University Irving Medical Center, New York, New York, USA
| | - Jacob Bledsoe
- Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester, Massachusetts, USA
| | - Chengkai Dai
- Center for Cancer Research, National Cancer Institute, Frederick, Maryland, USA
| | - Robert F Schwabe
- Institute of Human Nutrition, Columbia University Irving Medical Center, New York, New York, USA
| | - Matthew D Shoulders
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Pranoti Mandrekar
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
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5
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Kmiecik SW, Mayer MP. Molecular mechanisms of heat shock factor 1 regulation. Trends Biochem Sci 2021; 47:218-234. [PMID: 34810080 DOI: 10.1016/j.tibs.2021.10.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/08/2021] [Accepted: 10/22/2021] [Indexed: 02/06/2023]
Abstract
To thrive and to fulfill their functions, cells need to maintain proteome homeostasis even in the face of adverse environmental conditions or radical restructuring of the proteome during differentiation. At the center of the regulation of proteome homeostasis is an ancient transcriptional mechanism, the so-called heat shock response (HSR), orchestrated in all eukaryotic cells by heat shock transcription factor 1 (Hsf1). As Hsf1 is implicated in aging and several pathologies like cancer and neurodegenerative disorders, understanding the regulation of Hsf1 could open novel therapeutic opportunities. In this review, we discuss the regulation of Hsf1's transcriptional activity by multiple layers of control circuits involving Hsf1 synthesis and degradation, conformational rearrangements and post-translational modifications (PTMs), and molecular chaperones in negative feedback loops.
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Affiliation(s)
- Szymon W Kmiecik
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, D-69120 Heidelberg, Germany
| | - Matthias P Mayer
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, D-69120 Heidelberg, Germany.
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6
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Moody R, Wilson K, Kampan NC, McNally OM, Jobling TW, Jaworowski A, Stephens AN, Plebanski M. Mapping Epitopes Recognised by Autoantibodies Shows Potential for the Diagnosis of High-Grade Serous Ovarian Cancer and Monitoring Response to Therapy for This Malignancy. Cancers (Basel) 2021; 13:cancers13164201. [PMID: 34439354 PMCID: PMC8392293 DOI: 10.3390/cancers13164201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Most women are diagnosed with high-grade serous ovarian cancer (HGSOC) at stage III, when the cancer has already spread, contributing to poor survival outcomes. However, while earlier diagnosis increases survival rates, there is a lack of early diagnosis biomarkers. Previously, autoantibodies specific for phosphorylated heat shock factor 1 (HSF1-PO4) were suggested as a potential diagnostic biomarker for early-stage HGSOC. In the present study, specific regions within HSF1 were identified, tested and confirmed as useful biomarkers, with comparable diagnostic potential to the full protein, across two separate clinical cohorts. Additionally, antibody responses to HSF1-PO4 and the corresponding peptides were found to increase following a round of standard first-line chemotherapy. Together, our data suggest that the identified short peptide sequences could be used as practical alternatives to support early diagnosis or monitor responses to chemotherapy. Abstract Autoantibodies recognising phosphorylated heat shock factor 1 (HSF1-PO4) protein are suggested as potential new diagnostic biomarkers for early-stage high-grade serous ovarian cancer (HGSOC). We predicted in silico B-cell epitopes in human and murine HSF1. Three epitope regions were synthesised as peptides. Circulating immunoglobulin A (cIgA) against the predicted peptide epitopes or HSF1-PO4 was measured using ELISA, across two small human clinical trials of HGSOC patients at diagnosis. To determine whether chemotherapy would promote changes in reactivity to either HSF1-PO4 or the HSF-1 peptide epitopes, IgA responses were further assessed in a sample of patients after a full cycle of chemotherapy. Anti-HSF1-PO4 responses correlated with antibody responses to the three selected epitope regions, regardless of phosphorylation, with substantial cross-recognition of the corresponding human and murine peptide epitope variants. Assessing reactivity to individual peptide epitopes, compared to HSF1-PO4, improved assay sensitivity. IgA responses to HSF1-PO4 further increased significantly post treatment, indicating that HSF1-PO4 is a target for immunity in response to chemotherapy. Although performed in a small cohort, these results offer potential insights into the interplay between autoimmunity and ovarian cancer and offer new peptide biomarkers for early-stage HGSOC diagnosis, to monitor responses to chemotherapy, and widely for pre-clinical HGSOC research.
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Affiliation(s)
- Rhiane Moody
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia; (R.M.); (K.W.); (A.J.)
| | - Kirsty Wilson
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia; (R.M.); (K.W.); (A.J.)
| | - Nirmala Chandralega Kampan
- Department of Obstetrics and Gynaecology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur 56000, Malaysia;
| | - Orla M. McNally
- Gynaeoncology Unit, Royal Women’s Hospital, Parkville, VIC 3052, Australia;
| | - Thomas W. Jobling
- Department of Gynaecological Oncology, Monash Medical Centre, Bentleigh East, VIC 3165, Australia;
| | - Anthony Jaworowski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia; (R.M.); (K.W.); (A.J.)
| | - Andrew N. Stephens
- Hudson Institute of Medical Research, Clayton, VIC 3168, Australia;
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC 3168, Australia
| | - Magdalena Plebanski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia; (R.M.); (K.W.); (A.J.)
- Correspondence:
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7
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Ramsey HE, Stengel K, Pino JC, Johnston G, Childress M, Gorska AE, Arrate PM, Fuller L, Villaume M, Fischer MA, Ferrell PB, Roe CE, Zou J, Lubbock ALR, Stubbs M, Zinkel S, Irish JM, Lopez CF, Hiebert S, Savona MR. Selective Inhibition of JAK1 Primes STAT5-Driven Human Leukemia Cells for ATRA-Induced Differentiation. Target Oncol 2021; 16:663-674. [PMID: 34324169 DOI: 10.1007/s11523-021-00830-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND All-trans retinoic acid (ATRA), a derivate of vitamin A, has been successfully used as a therapy to induce differentiation in M3 acute promyelocytic leukemia (APML), and has led to marked improvement in outcomes. Previously, attempts to use ATRA in non-APML in the clinic, however, have been underwhelming, likely due to persistent signaling through other oncogenic drivers. Dysregulated JAK/STAT signaling is known to drive several hematologic malignancies, and targeting JAK1 and JAK2 with the JAK1/JAK2 inhibitor ruxolitinib has led to improvement in survival in primary myelofibrosis and alleviation of vasomotor symptoms and splenomegaly in polycythemia vera and myelofibrosis. OBJECTIVE While dose-dependent anemia and thrombocytopenia limit the use of JAK2 inhibition, selectively targeting JAK1 has been explored as a means to suppress inflammation and STAT-associated pathologies related to neoplastogenesis. The objective of this study is to employ JAK1 inhibition (JAK1i) in the presence of ATRA as a potential therapy in non-M3 acute myeloid leukemia (AML). METHODS Efficacy of JAK1i using INCB52793 was assessed by changes in cell cycle and apoptosis in treated AML cell lines. Transcriptomic and proteomic analysis evaluated effects of JAK1i. Synergy between JAK1i+ ATRA was assessed in cell lines in vitro while efficacy in vivo was assessed by tumor reduction in MV-4-11 cell line-derived xenografts. RESULTS Here we describe novel synergistic activity between JAK1i inhibition and ATRA in non-M3 leukemia. Transcriptomic and proteomic analysis confirmed structural and functional changes related to maturation while in vivo combinatory studies revealed significant decreases in leukemic expansion. CONCLUSIONS JAK1i+ ATRA lead to decreases in cell cycle followed by myeloid differentiation and cell death in human leukemias. These findings highlight potential uses of ATRA-based differentiation therapy of non-M3 human leukemia.
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Affiliation(s)
- Haley E Ramsey
- Cancer Biology Program, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Kristy Stengel
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - James C Pino
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Bioinformatics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Gretchen Johnston
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Merrida Childress
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Agnieszka E Gorska
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Pia M Arrate
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Londa Fuller
- Cancer Biology Program, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Matthew Villaume
- Cancer Biology Program, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Melissa A Fischer
- Cancer Biology Program, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - P Brent Ferrell
- Cancer Biology Program, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Caroline E Roe
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Jing Zou
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Alexander L R Lubbock
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Bioinformatics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | | | - Sandra Zinkel
- Cancer Biology Program, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA.,Division of Hematology/Oncology, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, 777 Preston Research Building, 2200 Pierce Avenue, Nashville, TN, 37232, USA
| | - Jonathan M Irish
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Carlos F Lopez
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Bioinformatics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Scott Hiebert
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA.,Division of Hematology/Oncology, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, 777 Preston Research Building, 2200 Pierce Avenue, Nashville, TN, 37232, USA
| | - Michael R Savona
- Cancer Biology Program, Vanderbilt University School of Medicine, Nashville, TN, USA. .,Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA. .,Vanderbilt Center for Immunobiology, Nashville, TN, USA. .,Division of Hematology/Oncology, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, 777 Preston Research Building, 2200 Pierce Avenue, Nashville, TN, 37232, USA.
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8
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Boast B, Miosge LA, Kuehn HS, Cho V, Athanasopoulos V, McNamara HA, Sontani Y, Mei Y, Howard D, Sutton HJ, Omari SA, Yu Z, Nasreen M, Andrews TD, Cockburn IA, Goodnow CC, Rosenzweig SD, Enders A. A Point Mutation in IKAROS ZF1 Causes a B Cell Deficiency in Mice. THE JOURNAL OF IMMUNOLOGY 2021; 206:1505-1514. [PMID: 33658297 DOI: 10.4049/jimmunol.1901464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/27/2021] [Indexed: 12/26/2022]
Abstract
IKZF1 (IKAROS) is essential for normal lymphopoiesis in both humans and mice. Previous Ikzf1 mouse models have demonstrated the dual role for IKZF1 in both B and T cell development and have indicated differential requirements of each zinc finger. Furthermore, mutations in IKZF1 are known to cause common variable immunodeficiency in patients characterized by a loss of B cells and reduced Ab production. Through N-ethyl-N-nitrosourea mutagenesis, we have discovered a novel Ikzf1 mutant mouse with a missense mutation (L132P) in zinc finger 1 (ZF1) located in the DNA binding domain. Unlike other previously reported murine Ikzf1 mutations, this L132P point mutation (Ikzf1L132P ) conserves overall protein expression and has a B cell-specific phenotype with no effect on T cell development, indicating that ZF1 is not required for T cells. Mice have reduced Ab responses to immunization and show a progressive loss of serum Igs compared with wild-type littermates. IKZF1L132P overexpressed in NIH3T3 or HEK293T cells failed to localize to pericentromeric heterochromatin and bind target DNA sequences. Coexpression of wild-type and mutant IKZF1, however, allows for localization to pericentromeric heterochromatin and binding to DNA indicating a haploinsufficient mechanism of action for IKZF1L132P Furthermore, Ikzf1+/L132P mice have late onset defective Ig production, similar to what is observed in common variable immunodeficiency patients. RNA sequencing revealed a total loss of Hsf1 expression in follicular B cells, suggesting a possible functional link for the humoral immune response defects observed in Ikzf1L132P/L132P mice.
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Affiliation(s)
- Brigette Boast
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Lisa A Miosge
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Hye Sun Kuehn
- Immunology Service, Department of Laboratory Medicine, National Institutes of Health Clinical Center, Bethesda, MD 20892
| | - Vicky Cho
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Vicki Athanasopoulos
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia.,Centre for Personalised Immunology, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Hayley A McNamara
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Yovina Sontani
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Yan Mei
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Debbie Howard
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Henry J Sutton
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Sofia A Omari
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia.,Children's Cancer Institute, School of Women's and Children's Health, Lowy Cancer Centre, University of New South Wales, Sydney, New South Wales 2031, Australia
| | - Zhijia Yu
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Mariam Nasreen
- Australian Phenomics Facility, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia; and
| | - T Daniel Andrews
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Ian A Cockburn
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Christopher C Goodnow
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, New South Wales 2010, Australia
| | - Sergio D Rosenzweig
- Immunology Service, Department of Laboratory Medicine, National Institutes of Health Clinical Center, Bethesda, MD 20892
| | - Anselm Enders
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia;
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9
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Liu N, Feng Y, Liu H, Wu W, Liang Y, Li P, Wei Z, Wu M, Tang ZH, Han J, Cheng X, Liu Z, Laurence A, Li H, Zhen G, Yang XP. ATP6V0d2 Suppresses Alveoli Macrophage Alternative Polarization and Allergic Asthma via Degradation of PU.1. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2021; 13:479-497. [PMID: 33733641 PMCID: PMC7984956 DOI: 10.4168/aair.2021.13.3.479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/20/2020] [Accepted: 09/07/2020] [Indexed: 11/20/2022]
Abstract
PURPOSE Macrophages are important regulators of environmental allergen-induced airway inflammation and asthma. ATP6V0d2 is a subunit of vacuolar ATPase highly expressed in macrophages. However, the functions of ATP6V0d2 in the regulation of pathogenesis of allergic asthma remain unclear. The aim of this study is to determine the function and related molecular mechanisms of macrophage protein ATP6V0d2 in allergic asthma. METHODS We compared the disease severity between female C57BL/6 wild-type and ATP6V0d2-/- mice in an ovalbumin (OVA)-induced asthma model. We also investigated the association of expression of ATP6V0d2, PU.1 and CCL17 with disease severity among asthmatic patients. RESULTS The expression of ATP6V0d2 in sputum cells of asthmatic patients and in the lungs of OVA-challenged mice was enhanced compared to healthy subjects and their counterparts, respectively. However, ATP6V0d2-deficient mice exaggerated inflammatory cell infiltration as well as enhanced alternative activated macrophage (AAM) polarization and mucus production in an OVA-induced asthma model. Furthermore, we found that Atp6v0d2 promoted lysosomal degradation of Pu.1, which induced AAM polarization and Ccl17 production. Among asthma patients, ATP6V0d2 expression was inversely associated with disease severity, whereas PU.1 and CCL17 expression was positively associated with disease severity. CONCLUSIONS Our results identify macrophage Atp6v0d2, as an induced feedback inhibitor of asthma disease severity by promoting Pu.1 lysosomal degradation, which may in turn leads to reduced AAM polarization and Ccl17 production.
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Affiliation(s)
- Na Liu
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuchen Feng
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Huicheng Liu
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Wenliang Wu
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Yuxia Liang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Pingfei Li
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Zhengping Wei
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Min Wu
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Zhao Hui Tang
- Department of Surgery, Tongji Hospital, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Junyan Han
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Xiang Cheng
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Zheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Arian Laurence
- University College Hospital, NHS Trust, London, United Kingdom
| | - Huabin Li
- Department of Otolaryngology, Head and Neck Surgery, Affiliated Eye-Ear-Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Guohua Zhen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Xiang Ping Yang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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10
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Hadi T, Ramseyer C, Gautier T, Bellaye PS, Lopez T, Schmitt A, Foley S, Yesylevskyy S, Minervini T, Douhard R, Dondaine L, Proukhnitzky L, Messaoudi S, Wendremaire M, Moreau M, Neiers F, Collin B, Denat F, Lagrost L, Garrido C, Lirussi F. Lipoproteins LDL versus HDL as nanocarriers to target either cancer cells or macrophages. JCI Insight 2020; 5:140280. [PMID: 33252359 PMCID: PMC7819744 DOI: 10.1172/jci.insight.140280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 11/11/2020] [Indexed: 01/01/2023] Open
Abstract
In this work, we have explored natural unmodified low- and high-density lipoproteins (LDL and HDL, respectively) as selective delivery vectors in colorectal cancer therapy. We show in vitro in cultured cells and in vivo (NanoSPECT/CT) in the CT-26 mice colorectal cancer model that LDLs are mainly taken up by cancer cells, while HDLs are preferentially taken up by macrophages. We loaded LDLs with cisplatin and HDLs with the heat shock protein-70 inhibitor AC1LINNC, turning them into a pair of “Trojan horses” delivering drugs selectively to their target cells as demonstrated in vitro in human colorectal cancer cells and macrophages, and in vivo. Coupling of the drugs to lipoproteins and stability was assessed by mass spectometry and raman spectrometry analysis. Cisplatin vectorized in LDLs led to better tumor growth suppression with strongly reduced adverse effects such as renal or liver toxicity. AC1LINNC vectorized into HDLs induced a strong oxidative burst in macrophages and innate anticancer immune response. Cumulative antitumor effect was observed for both drug-loaded lipoproteins. Altogether, our data show that lipoproteins from patient blood can be used as natural nanocarriers allowing cell-specific targeting, paving the way toward more efficient, safer, and personalized use of chemotherapeutic and immunotherapeutic drugs in cancer.
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Affiliation(s)
- Tarik Hadi
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France.,NYU Langone Medical Center, department of Cardiac Surgery, New York, New York, USA
| | - Christophe Ramseyer
- Université de Bourgogne-Franche Comté, France.,Laboratoire Chrono Environnement UMR CNRS 6249, Université de Bourgogne Franche-Comté, Besançon Cedex, France
| | - Thomas Gautier
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France
| | | | - Tatiana Lopez
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France
| | - Antonin Schmitt
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Anti-cancer Center George-François Leclerc, CGFL, Dijon, France
| | - Sarah Foley
- Université de Bourgogne-Franche Comté, France.,Laboratoire Chrono Environnement UMR CNRS 6249, Université de Bourgogne Franche-Comté, Besançon Cedex, France
| | - Semen Yesylevskyy
- Laboratoire Chrono Environnement UMR CNRS 6249, Université de Bourgogne Franche-Comté, Besançon Cedex, France.,Department of Physics of Biological Systems, Institute of Physics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Thibault Minervini
- Université de Bourgogne-Franche Comté, France.,Laboratoire Chrono Environnement UMR CNRS 6249, Université de Bourgogne Franche-Comté, Besançon Cedex, France
| | - Romain Douhard
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France
| | - Lucile Dondaine
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France
| | - Lil Proukhnitzky
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France
| | - Samir Messaoudi
- BioCIS, Univ. Paris-Sud, CNRS, Univ. Paris-Saclay, Châtenay-Malabry, France
| | - Maeva Wendremaire
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France
| | - Mathieu Moreau
- ICMUB, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | - Fabrice Neiers
- Centre des Sciences du Goût et de l'Alimentation, INRA, CNRS, Bourgogne Franche-Comté University, France
| | - Bertrand Collin
- Université de Bourgogne-Franche Comté, France.,Anti-cancer Center George-François Leclerc, CGFL, Dijon, France
| | - Franck Denat
- ICMUB, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS, Université Bourgogne Franche-Comté, Dijon, France
| | - Laurent Lagrost
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France
| | - Carmen Garrido
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France.,Anti-cancer Center George-François Leclerc, CGFL, Dijon, France
| | - Frederic Lirussi
- INSERM, U1231, Label LipSTIC, and Ligue Nationale contre le Cancer, Dijon, France.,Université de Bourgogne-Franche Comté, France.,University Hospital of Besançon (CHU), France
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11
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Mishra M, Thacker G, Sharma A, Singh AK, Upadhyay V, Sanyal S, Verma SP, Tripathi AK, Bhatt MLB, Trivedi AK. FBW7 Inhibits Myeloid Differentiation in Acute Myeloid Leukemia via GSK3-Dependent Ubiquitination of PU.1. Mol Cancer Res 2020; 19:261-273. [PMID: 33188146 DOI: 10.1158/1541-7786.mcr-20-0268] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/17/2020] [Accepted: 11/09/2020] [Indexed: 11/16/2022]
Abstract
Glycogen synthase kinase 3β (GSK3β), an ubiquitously expressed serine/threonine kinase is reported to be overexpressed and hyperactivated in cancers including acute myeloid leukemia (AML) where it promotes self-renewal, growth, and survival of AML cells. Therefore, GSK3β inhibition results in AML cell growth inhibition and myeloid differentiation. Here we identified master transcription factor PU.1 of monocyte-macrophage differentiation pathway as potential GSK3β target. We demonstrate that GSK3β phosphorylates PU.1 at Ser41 and Ser140 leading to its recognition and subsequent ubiquitin-mediated degradation by E3 ubiquitin ligase FBW7. This GSK3-dependent degradation of PU.1 by FBW7 inhibited monocyte-macrophage differentiation. We further showed that a phospho-deficient PU.1 mutant (PU.1-S41, S140A) neither bound to FBW7 nor was degraded by it. Consequently, PU.1-S41, S140A retained its transactivation, DNA-binding ability and promoted monocyte-macrophage differentiation of U937 cells even without phorbol 12-myristate 13-acetate (PMA) treatment. We further showed that FBW7 overexpression inhibited both PMA as well as M-CSF-induced macrophage differentiation of myeloid cell lines and peripheral blood mononuclear cells (PBMC) from healthy volunteers, respectively. Contrarily, FBW7 depletion promoted differentiation of these cells even without any inducer suggesting for a robust role of GSK3β-FBW7 axis in negatively regulating myeloid differentiation. Furthermore, we also recapitulated these findings in PBMCs isolated from patients with leukemia where FBW7 overexpression markedly inhibited endogenous PU.1 protein levels. In addition, PBMCs also showed enhanced differentiation when treated with M-CSF and GSK3 inhibitor (SB216763) together compared with M-CSF treatment alone. IMPLICATIONS: Our data demonstrate a plausible mechanism behind PU.1 restoration and induction of myeloid differentiation upon GSK3β inhibition and further substantiates potential of GSK3β as a therapeutic target in AML.
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Affiliation(s)
- Mukul Mishra
- Division of Cancer Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Gatha Thacker
- Division of Cancer Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Akshay Sharma
- Division of Cancer Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Anil Kumar Singh
- Division of Cancer Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Vishal Upadhyay
- Division of Cancer Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Sabyasachi Sanyal
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, UP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, UP, India
| | | | - Anil Kumar Tripathi
- King George's Medical University, Lucknow, UP, India.,Ram Manohar Lohia Institute of Medical Sciences (RMLIMS), UP, Lucknow, India
| | | | - Arun Kumar Trivedi
- Division of Cancer Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, UP, India
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12
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Carpenter RL, Gökmen-Polar Y. HSF1 as a Cancer Biomarker and Therapeutic Target. Curr Cancer Drug Targets 2020; 19:515-524. [PMID: 30338738 DOI: 10.2174/1568009618666181018162117] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/30/2018] [Accepted: 09/15/2018] [Indexed: 12/30/2022]
Abstract
Heat shock factor 1 (HSF1) was discovered in 1984 as the master regulator of the heat shock response. In this classical role, HSF1 is activated following cellular stresses such as heat shock that ultimately lead to HSF1-mediated expression of heat shock proteins to protect the proteome and survive these acute stresses. However, it is now becoming clear that HSF1 also plays a significant role in several diseases, perhaps none more prominent than cancer. HSF1 appears to have a pleiotropic role in cancer by supporting multiple facets of malignancy including migration, invasion, proliferation, and cancer cell metabolism among others. Because of these functions, and others, of HSF1, it has been investigated as a biomarker for patient outcomes in multiple cancer types. HSF1 expression alone was predictive for patient outcomes in multiple cancer types but in other instances, markers for HSF1 activity were more predictive. Clearly, further work is needed to tease out which markers are most representative of the tumor promoting effects of HSF1. Additionally, there have been several attempts at developing small molecule inhibitors to reduce HSF1 activity. All of these HSF1 inhibitors are still in preclinical models but have shown varying levels of efficacy at suppressing tumor growth. The growth of research related to HSF1 in cancer has been enormous over the last decade with many new functions of HSF1 discovered along the way. In order for these discoveries to reach clinical impact, further development of HSF1 as a biomarker or therapeutic target needs to be continued.
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Affiliation(s)
- Richard L Carpenter
- Melvin and Bren Simon Cancer Center, Indiana University School of Medicine, Bloomington, IN 47405, United States.,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Bloomington, IN 47405, United States.,Department of Medical Sciences, Indiana University School of Medicine, Bloomington, IN 47405, United States
| | - Yesim Gökmen-Polar
- Melvin and Bren Simon Cancer Center, Indiana University School of Medicine, Bloomington, IN 47405, United States.,Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, United States
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13
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Da Costa R, De Almeida S, Chevarin M, Hadj-Rabia S, Leclerc-Mercier S, Thauvin-Robinet C, Garrido C, Faivre L, Vabres P, Duplomb L, Jego G. Neutralization of HSF1 in cells from PIK3CA-related overgrowth spectrum patients blocks abnormal proliferation. Biochem Biophys Res Commun 2020; 530:520-526. [PMID: 32620236 DOI: 10.1016/j.bbrc.2020.04.146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/29/2020] [Indexed: 02/09/2023]
Abstract
PIK3CA-related overgrowth spectrum is caused by mosaicism mutations in the PIK3CA gene. These mutations, which are also observed in various types of cancer, lead to a constitutive activation of the PI3K/AKT/mTOR pathway, increasing cell proliferation. Heat shock transcription factor 1 (HSF1) is the major stress-responsive transcription factor. Recent findings indicate that AKT phosphorylates and activates HSF1 independently of heat-shock in breast cancer cells. Here, we aimed to investigate the role of HSF1 in PIK3CA-related overgrowth spectrum. We observed a higher rate of proliferation and increased phosphorylation of AKT and p70S6K in mutant fibroblasts than in control cells. We also found elevated phosphorylation and activation of HSF1, which is directly correlated to AKT activation. Specific AKT inhibitors inhibit HSF1 phosphorylation as well as HSF1-dependent gene transcription. Finally, we demonstrated that targeting HSF1 with specific inhibitors reduced the proliferation of mutant cells. As there is currently no curative treatment for PIK3CA-related overgrowth spectrum, our results identify HSF1 as a new potential therapeutic target.
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Affiliation(s)
- Romain Da Costa
- INSERM, LNC UMR1231, Team GAD, University of Burgundy and Franche-Comté, F-21000, Dijon, France; FHU-TRANSLAD, University of Burgundy and Franche-Comté, Dijon University Hospital, F-21000, Dijon, France
| | - Steven De Almeida
- INSERM, LNC UMR1231 Team HSP-pathies, University of Burgundy and Franche-Comté, F-21000, Dijon, France
| | - Martin Chevarin
- INSERM, LNC UMR1231, Team GAD, University of Burgundy and Franche-Comté, F-21000, Dijon, France; FHU-TRANSLAD, University of Burgundy and Franche-Comté, Dijon University Hospital, F-21000, Dijon, France
| | - Smail Hadj-Rabia
- Department of Dermatology, Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), Hôpital Universitaire Necker- Enfants Malades, Assistance Publique - Hôpitaux de Paris-Centre (AP-HP5), Paris, France
| | - Stéphanie Leclerc-Mercier
- Department of Pathology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Christel Thauvin-Robinet
- INSERM, LNC UMR1231, Team GAD, University of Burgundy and Franche-Comté, F-21000, Dijon, France; FHU-TRANSLAD, University of Burgundy and Franche-Comté, Dijon University Hospital, F-21000, Dijon, France
| | - Carmen Garrido
- INSERM, LNC UMR1231 Team HSP-pathies, University of Burgundy and Franche-Comté, F-21000, Dijon, France
| | - Laurence Faivre
- INSERM, LNC UMR1231, Team GAD, University of Burgundy and Franche-Comté, F-21000, Dijon, France; FHU-TRANSLAD, University of Burgundy and Franche-Comté, Dijon University Hospital, F-21000, Dijon, France
| | - Pierre Vabres
- INSERM, LNC UMR1231, Team GAD, University of Burgundy and Franche-Comté, F-21000, Dijon, France; FHU-TRANSLAD, University of Burgundy and Franche-Comté, Dijon University Hospital, F-21000, Dijon, France; Department of Dermatology, Dijon University Hospital, F-21000, Dijon, France
| | - Laurence Duplomb
- INSERM, LNC UMR1231, Team GAD, University of Burgundy and Franche-Comté, F-21000, Dijon, France; FHU-TRANSLAD, University of Burgundy and Franche-Comté, Dijon University Hospital, F-21000, Dijon, France
| | - Gaëtan Jego
- INSERM, LNC UMR1231 Team HSP-pathies, University of Burgundy and Franche-Comté, F-21000, Dijon, France.
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14
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Janus P, Toma-Jonik A, Vydra N, Mrowiec K, Korfanty J, Chadalski M, Widłak P, Dudek K, Paszek A, Rusin M, Polańska J, Widłak W. Pro-death signaling of cytoprotective heat shock factor 1: upregulation of NOXA leading to apoptosis in heat-sensitive cells. Cell Death Differ 2020; 27:2280-2292. [PMID: 31996779 PMCID: PMC7308270 DOI: 10.1038/s41418-020-0501-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 01/15/2023] Open
Abstract
Heat shock can induce either cytoprotective mechanisms or cell death. We found that in certain human and mouse cells, including spermatocytes, activated heat shock factor 1 (HSF1) binds to sequences located in the intron(s) of the PMAIP1 (NOXA) gene and upregulates its expression which induces apoptosis. Such a mode of PMAIP1 activation is not dependent on p53. Therefore, HSF1 not only can activate the expression of genes encoding cytoprotective heat shock proteins, which prevents apoptosis, but it can also positively regulate the proapoptotic PMAIP1 gene, which facilitates cell death. This could be the primary cause of hyperthermia-induced elimination of heat-sensitive cells, yet other pro-death mechanisms might also be involved.
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Affiliation(s)
- Patryk Janus
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Agnieszka Toma-Jonik
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Natalia Vydra
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Katarzyna Mrowiec
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Joanna Korfanty
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Marek Chadalski
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Piotr Widłak
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Karolina Dudek
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Anna Paszek
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland.,Department of Data Science and Engineering, The Silesian University of Technology, Akademicka 16, 44-100, Gliwice, Poland
| | - Marek Rusin
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland
| | - Joanna Polańska
- Department of Data Science and Engineering, The Silesian University of Technology, Akademicka 16, 44-100, Gliwice, Poland
| | - Wiesława Widłak
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102, Gliwice, Poland.
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15
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Barna J, Csermely P, Vellai T. Roles of heat shock factor 1 beyond the heat shock response. Cell Mol Life Sci 2018; 75:2897-2916. [PMID: 29774376 PMCID: PMC11105406 DOI: 10.1007/s00018-018-2836-6] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/07/2018] [Indexed: 01/09/2023]
Abstract
Various stress factors leading to protein damage induce the activation of an evolutionarily conserved cell protective mechanism, the heat shock response (HSR), to maintain protein homeostasis in virtually all eukaryotic cells. Heat shock factor 1 (HSF1) plays a central role in the HSR. HSF1 was initially known as a transcription factor that upregulates genes encoding heat shock proteins (HSPs), also called molecular chaperones, which assist in refolding or degrading injured intracellular proteins. However, recent accumulating evidence indicates multiple additional functions for HSF1 beyond the activation of HSPs. Here, we present a nearly comprehensive list of non-HSP-related target genes of HSF1 identified so far. Through controlling these targets, HSF1 acts in diverse stress-induced cellular processes and molecular mechanisms, including the endoplasmic reticulum unfolded protein response and ubiquitin-proteasome system, multidrug resistance, autophagy, apoptosis, immune response, cell growth arrest, differentiation underlying developmental diapause, chromatin remodelling, cancer development, and ageing. Hence, HSF1 emerges as a major orchestrator of cellular stress response pathways.
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Affiliation(s)
- János Barna
- Department of Genetics, Eötvös Loránd University, Pázmány Péter Stny. 1/C, Budapest, 1117, Hungary
- MTA-ELTE Genetics Research Group, Eötvös Loránd University, Budapest, Hungary
| | - Péter Csermely
- Department of Medical Chemistry, Semmelweis University, Budapest, Hungary
| | - Tibor Vellai
- Department of Genetics, Eötvös Loránd University, Pázmány Péter Stny. 1/C, Budapest, 1117, Hungary.
- MTA-ELTE Genetics Research Group, Eötvös Loránd University, Budapest, Hungary.
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16
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Mougeot JL, Noll BD, Bahrani Mougeot FK. Sjögren's syndrome X-chromosome dose effect: An epigenetic perspective. Oral Dis 2018; 25:372-384. [PMID: 29316023 DOI: 10.1111/odi.12825] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 12/12/2017] [Accepted: 12/20/2017] [Indexed: 02/06/2023]
Abstract
Sjögren's syndrome (SS) is a chronic autoimmune disease affecting exocrine glands leading to mouth and eyes dryness. The extent to which epigenetic DNA methylation changes are responsible for an X-chromosome dose effect has yet to be determined. Our objectives were to (i) describe how epigenetic DNA methylation changes could explain an X-chromosome dose effect in SS for women with normal 46,XX genotype and (ii) determine the relevant relationships to this dose effect, between X-linked genes, genes controlling X-chromosome inactivation (XCI) and genes encoding associated transcription factors, all of which are differentially expressed and/or differentially methylated in the salivary glands of patients with SS. We identified 58 upregulated X-chromosome genes, including 22 genes previously shown to escape XCI, based on the analysis of SS patient salivary gland GEO2R gene expression datasets. Moreover, we found XIST and its cis regulators RLIM, FTX, and CHIC1, and polycomb repressor genes of the PRC1/2 complexes to be upregulated. Many of the X-chromosome genes implicated in SS pathogenesis can be regulated by transcription factors which we found to be overexpressed and/or differentially methylated in patients with SS. Determination of the mechanisms underlying methylation-dependent gene expression and impaired XCI is needed to further elucidate the etiopathogenesis of SS.
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Affiliation(s)
- J-Lc Mougeot
- Department of Oral Medicine-Cannon Research Center, Carolinas HealthCare System, Charlotte, NC, USA.,Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - B D Noll
- Department of Oral Medicine-Cannon Research Center, Carolinas HealthCare System, Charlotte, NC, USA.,Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - F K Bahrani Mougeot
- Department of Oral Medicine-Cannon Research Center, Carolinas HealthCare System, Charlotte, NC, USA.,Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC, USA
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17
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Mennetrier L, Lopez T, Pruvot B, Yousfi N, Armant O, Hazhaz H, Lhuissiez V, Garrido C, Chluba J. zHSF1 modulates zper2 expression in zebrafish embryos. Chronobiol Int 2018; 35:1008-1015. [PMID: 29509048 DOI: 10.1080/07420528.2018.1441855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
HSF1 is a transcription factor that plays a key role in circadian resetting by temperature. We have used zebrafish embryos to decipher the roles of zHsf1, heat and light on zper2 transcription in vivo. Our results show that heat shock (HS) stimulated zper2 expression in the dark but has no cumulative effect combined with light. After light exposition, zper2 expression was 2.7 fold increased threefold in the hsf1-morphants in comparison to control embryos. Our results show that zHsf1 plays a positive role in HS-driven expression of zper2 in the dark but seems to act as an attenuator in the presence light.
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Affiliation(s)
- Lucas Mennetrier
- a UFR SVTE - UFR Sciences de la Vie, de la Terre et de l'Environnement, Université de Bourgogne Franche-Comté , Dijon , France
| | - Tatiana Lopez
- a UFR SVTE - UFR Sciences de la Vie, de la Terre et de l'Environnement, Université de Bourgogne Franche-Comté , Dijon , France.,b UMR 1231 INSERM LNC , Dijon , France.,c UFR des Sciences de Santé , Université de Bourgogne Franche-Comté , Dijon , France
| | | | - Nadhir Yousfi
- a UFR SVTE - UFR Sciences de la Vie, de la Terre et de l'Environnement, Université de Bourgogne Franche-Comté , Dijon , France
| | - Olivier Armant
- d Institut de Radioprotection et de Sureté Nucléaire (IRSN) , PRP-ENV/SERIS/LECO , Cadarache , Saint-Paul-lez-Durance , France
| | - Hanae Hazhaz
- a UFR SVTE - UFR Sciences de la Vie, de la Terre et de l'Environnement, Université de Bourgogne Franche-Comté , Dijon , France
| | - Vincent Lhuissiez
- a UFR SVTE - UFR Sciences de la Vie, de la Terre et de l'Environnement, Université de Bourgogne Franche-Comté , Dijon , France
| | - Carmen Garrido
- b UMR 1231 INSERM LNC , Dijon , France.,c UFR des Sciences de Santé , Université de Bourgogne Franche-Comté , Dijon , France
| | - Johanna Chluba
- a UFR SVTE - UFR Sciences de la Vie, de la Terre et de l'Environnement, Université de Bourgogne Franche-Comté , Dijon , France.,b UMR 1231 INSERM LNC , Dijon , France
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18
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Abstract
Heat shock protein 70 (Hsp70) is the most ubiquitous stress-inducible chaperone. It accumulates in the cells in response to a wide variety of physiological and environmental insults including anticancer chemotherapy, thus allowing the cell to survive to lethal conditions. Intracellular Hsp70 is viewed as a cytoprotective protein. Indeed, this protein can inhibit key effectors of the apoptotic and autophagy machineries. In cancer cells, the expression of Hsp70 is abnormally high, and Hsp70 may participate in oncogenesis and in resistance to chemotherapy. In rodent models, Hsp70 overexpression increases tumor growth and metastatic potential. Depletion or inhibition of Hsp70 frequently reduces the size of the tumors and can even cause their complete involution. However, HSP70 is also found in the extra-cellular space where it may signal via membrane receptors or endosomes to alter gene transcription and cellular function. Overall, Hsp70 extracellular function is believed to be immnunogenic and the term chaperokine to define the extracellular chaperones such as Hsp70 has been advanced. In this chapter the knowledge to date, as well as some emerging paradigms about the intra- and extra-cellular functions of Hsp70, are presented. The strategies targeting Hsp70 that are being developed in cancer therapy will also be discussed.
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Affiliation(s)
- Christophe Boudesco
- Univ. Bourgogne Franche-Comté, LNC UMR1231, Dijon, France
- INSERM, LNC UMR1231, Dijon, France
- Equipe Labellisée par la Ligue Nationale Contre le Cancer, INSERM, LNC UMR1231, Dijon, France
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne Franche-Comté, Dijon, France
| | - Sebastien Cause
- Univ. Bourgogne Franche-Comté, LNC UMR1231, Dijon, France
- INSERM, LNC UMR1231, Dijon, France
- Equipe Labellisée par la Ligue Nationale Contre le Cancer, INSERM, LNC UMR1231, Dijon, France
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne Franche-Comté, Dijon, France
| | - Gaëtan Jego
- Univ. Bourgogne Franche-Comté, LNC UMR1231, Dijon, France.
- INSERM, LNC UMR1231, Dijon, France.
- Equipe Labellisée par la Ligue Nationale Contre le Cancer, INSERM, LNC UMR1231, Dijon, France.
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne Franche-Comté, Dijon, France.
| | - Carmen Garrido
- Univ. Bourgogne Franche-Comté, LNC UMR1231, Dijon, France.
- INSERM, LNC UMR1231, Dijon, France.
- Equipe Labellisée par la Ligue Nationale Contre le Cancer, INSERM, LNC UMR1231, Dijon, France.
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne Franche-Comté, Dijon, France.
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Baek SE, Jang MA, Lee SJ, Park SY, Bae SS, Kim CD. 5-Lipoxygenase in monocytes emerges as a therapeutic target for intimal hyperplasia in a murine wire-injured femoral artery. Biochim Biophys Acta Mol Basis Dis 2017. [PMID: 28645655 DOI: 10.1016/j.bbadis.2017.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Given the importance of leukotrienes in vascular inflammation induced by local tissue injury, this study investigated the role for 5-lipoxygenase (5-LO) in monocytes in the development of intimal hyperplasia. As a mechanistic study, the importance of monocyte 5-LO in monocyte-macrophage differentiation with subsequent infiltration in neointima was evaluated. In a mouse model of wire-injured femoral artery, intimal hyperplasia started as early as 2wks after injury, and luminal area and blood flow were reduced due to increased neointima formation. Time-dependent increases in macrophage infiltration were observed in neointima and showed a positive relationship with neointima volume. In 5-LO-deficient (KO) mice or wild-type (WT) mice treated with an inhibitor of 5-LO activating protein (MK886, 1 and 10mg/kg), intimal hyperplasia and macrophage infiltration into neointima were reduced, but monocyte adhesion to injured luminal surface was not inhibited, which suggested 5-LO participates in monocyte-macrophage differentiation. In an in vitro study, monocyte-macrophage differentiation was found to be increased by high mobility group box 1 protein (HMGB1), but this effect was attenuated in cells isolated from 5-LO-KO mice. Furthermore, macrophage infiltration and intimal hyperplasia were more prominent in 5-LO-KO mice transplanted with monocytes from WT mice than in 5-LO-KO mice transplanted with monocytes from 5-LO-KO mice. Taken together, it was suggested that 5-LO in monocytes played a pivotal role in monocyte-macrophage differentiation and subsequent infiltration of macrophage in neointima, leading to vascular remodeling after vascular injury.
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Affiliation(s)
- Seung Eun Baek
- Department of Pharmacology, School of Medicine and Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Yangsan, Gyeongnam 50612, Republic of Korea
| | - Min A Jang
- Department of Pharmacology, School of Medicine and Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Yangsan, Gyeongnam 50612, Republic of Korea
| | - Seung Jin Lee
- College of Pharmacy, Pusan National University, Pusan 609-735, Republic of Korea
| | - So Youn Park
- Department of Pharmacology, School of Medicine and Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Yangsan, Gyeongnam 50612, Republic of Korea
| | - Sun Sik Bae
- Department of Pharmacology, School of Medicine and Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Yangsan, Gyeongnam 50612, Republic of Korea
| | - Chi Dae Kim
- Department of Pharmacology, School of Medicine and Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Yangsan, Gyeongnam 50612, Republic of Korea.
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A novel PAD4/SOX4/PU.1 signaling pathway is involved in the committed differentiation of acute promyelocytic leukemia cells into granulocytic cells. Oncotarget 2016; 7:3144-57. [PMID: 26673819 PMCID: PMC4823096 DOI: 10.18632/oncotarget.6551] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 11/20/2015] [Indexed: 12/31/2022] Open
Abstract
All-trans retinoic acid (ATRA) treatment yields cure rates > 80% through proteasomal degradation of the PML-RARα fusion protein that typically promotes acute promyelocytic leukemia (APL). However, recent evidence indicates that ATRA can also promote differentiation of leukemia cells that are PML-RARα negative, such as HL-60 cells. Here, gene expression profiling of HL-60 cells was used to investigate the alternative mechanism of impaired differentiation in APL. The expression of peptidylarginine deiminase 4 (PADI4), encoding PAD4, a protein that post-translationally converts arginine into citrulline, was restored during ATRA-induced differentiation. We further identified that hypermethylation in the PADI4 promoter was associated with its transcriptional repression in HL-60 and NB4 (PML-RARα positive) cells. Functionally, PAD4 translocated into the nucleus upon ATRA exposure and promoted ATRA-mediated differentiation. Mechanistic studies using RNAi knockdown or electroporation-mediated delivery of PADI4, along with chromatin immunoprecipitation, helped identify PU.1 as an indirect target and SOX4 as a direct target of PAD4 regulation. Indeed, PAD4 regulates SOX4-mediated PU.1 expression, and thereby the differentiation process, in a SOX4-dependent manner. Taken together, our results highlight an association between PAD4 and DNA hypermethylation in APL and demonstrate that targeting PAD4 or regulating its downstream effectors may be a promising strategy to control differentiation in the clinic.
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21
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HSP110 promotes colorectal cancer growth through STAT3 activation. Oncogene 2016; 36:2328-2336. [PMID: 27819670 DOI: 10.1038/onc.2016.403] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 09/09/2016] [Accepted: 09/23/2016] [Indexed: 01/09/2023]
Abstract
Heat shock protein 110 (HSP110) is induced by different stresses and, through its anti-apoptotic and chaperoning properties, helps cells survive these adverse situations. In colon cancers, HSP110 is abnormally abundant. We have recently shown that colorectal cancer patients with microsatellite instability (MSI) had an improved response to chemotherapy because they harbor an HSP110-inactivating mutation (HSP110DE9). In this work, we used patient biopsies, human colorectal cancer cells grown in vitro and in vivo (xenografts), and intestinal crypts to demonstrate that HSP110 is also involved in colon cancer growth. We showed that HSP110 induces colon cancer cell proliferation and that this effect is associated with STAT3 activation, specifically an increase in STAT3 phosphorylation, nuclear translocation and transcription factor activity. STAT3 inhibition blocks the proliferative effect of HSP110. From a molecular standpoint, we demonstrated that HSP110 directly binds to STAT3, thereby facilitating its phosphorylation by JAK2. Finally, we showed a correlation between HSP110 expression and STAT3 phosphorylation in colon cancer patient samples. Thus, the expression of HSP110 in colon cancer contributes to STAT3-dependent tumor growth and the frequent inactivating mutation of this chaperone is probably an important event underlying the improved prognosis in colon cancer displaying MSI.
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22
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Zheng R, Studzinski GP. Nuclear ERK5 inhibits progression of leukemic monocytes to macrophages by regulating the transcription factor PU.1 and heat shock protein HSP70. Leuk Lymphoma 2016; 58:1468-1480. [PMID: 27748139 DOI: 10.1080/10428194.2016.1243675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Differentiation therapy can supplement the therapy of APL, but other subtypes of AML are treated principally with cytotoxic agents, with few lasting remissions. While the induction of monocyte followed by macrophage differentiation by vitamin D derivatives (VDDs) is dramatic in cultured AML cells of all subtypes, attempts to translate this to the clinic have not been effective. Thus, better understanding of the mechanisms underlying VDD-induced differentiation may improve this approach. The key events in this form of differentiation include increased expression of CD11b, and the transcription factor PU.1 is known to be a part of this process. We show here that in the transition of monocytes to macrophages induced by a VDD, ERK5, a member of the MAPK family of signaling molecules, prevents PU.1 expression. However, upon ERK5 inhibition PU.1 protein is stabilized by HSP70.Thus, ERK5 may be a target for manipulation of the immunoregulatory actions of macrophages in cancer.
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Affiliation(s)
- Ruifang Zheng
- a Department of Pathology and Laboratory Medicine , New Jersey Medical School, Rutgers University , Newark , NJ , USA
| | - George P Studzinski
- a Department of Pathology and Laboratory Medicine , New Jersey Medical School, Rutgers University , Newark , NJ , USA
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23
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Nouri M, Deezagi A, Ebrahimi M. Reprogramming of human peripheral blood monocytes to erythroid lineage by blocking of the PU-1 gene expression. Ann Hematol 2016; 95:549-56. [PMID: 26758270 DOI: 10.1007/s00277-015-2583-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 12/23/2015] [Indexed: 11/26/2022]
Abstract
In hematopoietic system development, PU.1 and GATA-1 as lineage-specific transcription factors (TF) are expressed in common myeloid progenitors. The cross antagonism between them ascertains gene expression programs of monocytic and erythroid cells, respectively. This concept in transdifferentiation approaches has not been well considered yet, especially in intralineage conversion systems. To demonstrate whether PU.1 suppression induces monocyte lineage conversion into red blood cells, a combination of three PU.1-specific siRNAs was implemented to knock down PU.1 gene expression and generate the balance in favor of GATA-1 expression to induce erythroid differentiation. For this purpose, monocytes were isolated from human peripheral blood and transfected by PU.1 siRNAs. In transfected monocytes, the rate of PU.1 expression in mRNA level was significantly decreased until 0.38 ± 0.118 when compared to untreated monocytes at 72 h (p value ≤0.05) which resulted in significant overexpression of GATA1 of 16.1 ± 0.343-fold compared to the untreated group (p value ≤0.01). Subsequently, overexpression of hemoglobin (α 13.26 ± 1.34-fold; p value≤0.0001) and β-globin (37.55 ± 16.56-fold; p value≤0.0001) was observed when compared to control groups. The results of western immunoblotting confirm those findings too. While, reduced expression of monocyte, CD14 gene, was observed in qRT-PCR and flow cytometry results. Our results suggest that manipulating the ratio of the two TFs in bifurcation differentiation pathways via applying siRNA technology can possibly change the cells' fate as a safe way for therapeutics application.
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Affiliation(s)
- Masoumeh Nouri
- Department of Molecular Medicine and Biochemistry, National Institute of Genetic Engineering and Biotechnology Km. 17, Karaj-Tehran freeway Pajouhesh Blvd., P.O.Box 14155-6343, Tehran, Iran
| | - Abdolkhalegh Deezagi
- Department of Molecular Medicine and Biochemistry, National Institute of Genetic Engineering and Biotechnology Km. 17, Karaj-Tehran freeway Pajouhesh Blvd., P.O.Box 14155-6343, Tehran, Iran.
| | - Marzieh Ebrahimi
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Wang X, Dai Z, Wu X, Wang K, Wang X. Distinct RNA transcriptome patterns are potentially associated with angiogenesis in Tie2-expressing monocytes. Gene 2015; 580:1-7. [PMID: 26748243 DOI: 10.1016/j.gene.2015.12.065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/09/2015] [Accepted: 12/29/2015] [Indexed: 01/04/2023]
Abstract
Tie2-expressing Monocytes (TEMs) were previously identified as a novel subset of monocytes and were believed to have prominent pro-angiogenesis activities in human tumors. While the molecular mechanism of the angiogenesis promoting capacity of TEMs remains unclear. RNA transcriptome pattern, including non-coding RNAs as microRNA (miRNA) and long non-coding RNA (lncRNA), plays important role in cell differentiation and functions. However, little is known about the transcriptome patterns of TEMs, including those non-coding RNAs. We explore the transcriptome of TEMs and the matched monocytes that do not express Tie2 (Tie2(-)monocytes) isolated from peripheral blood of healthy adults employing the Agilent Human miRNA(8*60K,Design ID: 046064)microarray and the Agilent lncRNA Gene Expression(4*180K, Design ID: 042818)microarray. A total of 141 mRNAs, 142 lncRNAs and 75 miRNAs were found dysregulated in TEMs compared to Tie2(-)monocytes. TEMs have the distinct RNA transcriptome patterns according to the Hierarchical clustering and then the gene expression patterns were confirmed by quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR). Functional annotation by Gene Ontology (GO) analyses showed that the up-regulated mRNAs in TEMs were associated to blood vessel remodeling and positive regulation of epithelial cell proliferation, and the up-regulated insulin like growth factor 1(IGF1) mRNA was involved in both pathways. For functional analysis of those dysregulated non-coding RNAs, target genes of the miRNAs were predicted and cis/trans-regulation analysis of the lncRNAs were performed.
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Affiliation(s)
- Xinjing Wang
- Shanghai First Maternity and Infant Hospital, Tongji University, School of Medicine.
| | - Zhiyuan Dai
- Shanghai First Maternity and Infant Hospital, Tongji University, School of Medicine.
| | - Xiaoli Wu
- Shanghai First Maternity and Infant Hospital, Tongji University, School of Medicine.
| | - Kai Wang
- Shanghai First Maternity and Infant Hospital, Tongji University, School of Medicine.
| | - Xipeng Wang
- Shanghai First Maternity and Infant Hospital, Tongji University, School of Medicine.
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IL-32θ inhibits monocytic differentiation of leukemia cells by attenuating expression of transcription factor PU.1. Oncotarget 2015; 6:4394-405. [PMID: 25726525 PMCID: PMC4414198 DOI: 10.18632/oncotarget.3013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 12/31/2014] [Indexed: 12/18/2022] Open
Abstract
PU.1 is a key transcription factor regulating the myeloid differentiation. PU.1-induced monocytic differentiation into macrophage is also important for blood cancer development. Therefore, we chose THP-1 monocytic leukemia cells to investigate the function of a recently discovered IL-32θ. Genetic analyses identified differences in the sequences of IL-32θ and IL-32β. Using previously established cell lines that stably express IL-32θ and IL-32β and cell lines transiently expressing IL-32θ, we observed that expression of IL-32θ inhibited phorbol 12-myristate 13-acetate (PMA)-induced monocytic differentiation in both THP-1 and HL-60 cells. IL-32θ also suppressed expression of the macrophage cell surface markers, CD11b, CD18, and CD36. Interestingly, expression of IL-32β or IL-32θ had no effect on the expression levels of cell cycle related factors. As a result, we concluded that these isoforms did not contribute to PMA-induced cell cycle arrest. IL-32θ was found to modulate expression of PU.1, a transcription factor necessary for myeloid lineage commitment. Transient expression of PU.1 in THP-1/IL-32θ cells rescued the observed differentiation defect. Additionally, transient expression of both CCAAT-enhancer-binding protein α (C/EBPα) and PU.1 in THP-1/IL-32θ cells exhibited synergistic effects in rescuing the differentiation defect. These observations indicate that intracellular IL-32θ inhibits the differentiation of monocytes into macrophages by attenuating PU.1 expression.
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HSP90 and HSP70: Implication in Inflammation Processes and Therapeutic Approaches for Myeloproliferative Neoplasms. Mediators Inflamm 2015; 2015:970242. [PMID: 26549943 PMCID: PMC4624912 DOI: 10.1155/2015/970242] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/27/2015] [Indexed: 12/23/2022] Open
Abstract
Myeloproliferative neoplasms (MPN) are clonal stem cell disorders that lead to the excessive production of one or more blood cell lineages. It has been reported that, in most MPN, inflammatory cytokines are frequently increased, indicating that inflammation plays a crucial role in these disorders. Heat shock proteins (HSP) are induced in response to many stressful conditions from heat shock to hypoxia and inflammation. Besides their chaperone and cytoprotective functions, HSPs are key players during inflammation, hence the term “chaperokine.” Through their chaperone activity, HSP90, a stabilizer of many oncogenes (e.g., JAK2), and HSP70, a powerful antiapoptotic chaperone, tightly regulate Nuclear Factor-kappa B signalling, a critical pathway in mediating inflammatory responses. In light of this potential, several HSP90 inhibitors have been generated as anticancer agents able to degrade oncogenes. As it turns out, however, these drugs are also potent inhibitors of the inflammatory response in various diseases. Given the chaperone potential of HSP70 and the fact that HSP90 inhibitors induce HSP70, interest in HSP70 inhibitors is also increasing. Here, we focus on the implication of HSP90 and HSP70 in inflammatory responses and on the emergence of new therapeutic approaches in MPN based on HSP inhibitors.
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Huang C, Lu X, Tong L, Wang J, Zhang W, Jiang B, Yang R. Requirement for endogenous heat shock factor 1 in inducible nitric oxide synthase induction in murine microglia. J Neuroinflammation 2015; 12:189. [PMID: 26467650 PMCID: PMC4607096 DOI: 10.1186/s12974-015-0406-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/28/2015] [Indexed: 01/17/2023] Open
Abstract
Background Inducible nitric oxide synthase (iNOS) makes a great contribution to host defense and inflammation. In many settings, lipopolysaccharide (LPS) induces iNOS expression through activation of the inhibitor of κB-α (IκB-α)-nuclear factor-κB (NF-κB) cascade, whereas interferon-γ (IFN-γ) acts through Janus kinase (JAK)-signal transducer and activator of transcription 1 (STAT1) signals. Heat shock factor 1 (HSF1), a major regulator of heat shock protein transcription, has been shown to regulate the production of pro-inflammatory cytokines such as tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), but it remains obscure whether and how HSF1 affects iNOS induction. Methods Western blot was used to measure the protein expression. The mRNA level was measured by real-time PCR. Silence of HSF1 was achieved by small interfering RNA. Nitric oxide (NO) content and NF-κB binding activity were assayed by commercial kits. Chromatin immunoprecipitation (ChIP) was used to measure the binding activity of NF-κB and STAT1 to iNOS promoters. Results HSF1 inhibition or knockdown prevented the LPS- and/or IFN-γ-stimulated iNOS protein expression in cultured microglia. HSF1 inhibition blocked iNOS mRNA transcription. These inhibitory effects of HSF1 inhibition on iNOS expression were confirmed in brain tissues from endotoxemic mice. Further analysis showed that HSF1 inhibition had no effect on IκB-α degradation and NF-κB or STAT1 phosphorylation in LPS/IFN-γ-stimulated cells. The nuclear transport of active NF-κB or STAT1 was also not affected by HSF1 inhibition, but HSF1 inhibition reduced the binding of NF-κB and STAT1 to their DNA elements. In addition, HSF1 inhibition reduced NF-κB and STAT1 bindings to iNOS promoter inside the LPS/IFN-γ-stimulated cells. Conclusions This preventing effect of HSF1 inhibition on iNOS mRNA transcription presents the necessary role of HSF1 in iNOS induction.
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Affiliation(s)
- Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China. .,Key Laboratory of Inflammation and Molecular Drug Targets of Jiangsu Province, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China.
| | - Xu Lu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China. .,Key Laboratory of Inflammation and Molecular Drug Targets of Jiangsu Province, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China.
| | - Lijuan Tong
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China. .,Key Laboratory of Inflammation and Molecular Drug Targets of Jiangsu Province, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China.
| | - Jili Wang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China. .,Key Laboratory of Inflammation and Molecular Drug Targets of Jiangsu Province, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China.
| | - Wei Zhang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China. .,Key Laboratory of Inflammation and Molecular Drug Targets of Jiangsu Province, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China.
| | - Bo Jiang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China. .,Key Laboratory of Inflammation and Molecular Drug Targets of Jiangsu Province, Nantong University, #19 Qixiu Road, Nantong, Jiangsu Province, 226001, China.
| | - Rongrong Yang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Jiangsu Province, #20Xisi Road, Nantong, Jiangsu Province, 226001, China.
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Boudesco C, Rattier T, Garrido C, Jego G. Do not stress, just differentiate: role of stress proteins in hematopoiesis. Cell Death Dis 2015; 6:e1628. [PMID: 25633297 PMCID: PMC4669758 DOI: 10.1038/cddis.2014.560] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- C Boudesco
- INSERM UMR 866, « Equipe labellisée Ligue contre le Cancer » and Laboratoire d'Excellence LipSTIC, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France
- University of Burgundy, Faculty of Medicine and Pharmacy, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France
| | - T Rattier
- INSERM UMR 866, « Equipe labellisée Ligue contre le Cancer » and Laboratoire d'Excellence LipSTIC, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France
- University of Burgundy, Faculty of Medicine and Pharmacy, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France
| | - C Garrido
- INSERM UMR 866, « Equipe labellisée Ligue contre le Cancer » and Laboratoire d'Excellence LipSTIC, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France
- University of Burgundy, Faculty of Medicine and Pharmacy, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France
- CGFL, Centre de lutte contre le cancer GF Leclerc, Dijon, France
| | - G Jego
- INSERM UMR 866, « Equipe labellisée Ligue contre le Cancer » and Laboratoire d'Excellence LipSTIC, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France
- University of Burgundy, Faculty of Medicine and Pharmacy, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France
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Morano KA, Sistonen L, Mezger V. Heat shock in the springtime. Cell Stress Chaperones 2014; 19:753-61. [PMID: 25199949 PMCID: PMC4389858 DOI: 10.1007/s12192-014-0539-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 08/12/2014] [Accepted: 08/12/2014] [Indexed: 11/26/2022] Open
Abstract
A collaborative workshop dedicated to the discussion of heat shock factors in stress response, development, and disease was held on April 22-24, 2014 at the Université Paris Diderot in Paris, France. Recent years have witnessed an explosion of interest in these highly conserved transcription factors, with biological roles ranging from environmental sensing to human development and cancer.
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Affiliation(s)
- Kevin A. Morano
- />Department of Microbiology and Molecular Genetics, University of Texas Medical School at Houston, Houston, TX 77030 USA
| | - Lea Sistonen
- />Department of Biosciences, Åbo Akademi University, BioCity, 20520 Turku, Finland
| | - Valérie Mezger
- />UMR7216 Epigenetics and Cell Fate, CNRS, F-75205 Paris Cedex 13, France
- />University Paris Diderot, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France
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