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Budzyński MA, Wong AK, Faghihi A, Teves SS. A dynamic role for transcription factors in restoring transcription through mitosis. Biochem Soc Trans 2024; 52:821-830. [PMID: 38526206 PMCID: PMC11088908 DOI: 10.1042/bst20231022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/01/2024] [Accepted: 03/06/2024] [Indexed: 03/26/2024]
Abstract
Mitosis involves intricate steps, such as DNA condensation, nuclear membrane disassembly, and phosphorylation cascades that temporarily halt gene transcription. Despite this disruption, daughter cells remarkably retain the parent cell's gene expression pattern, allowing for efficient transcriptional memory after division. Early studies in mammalian cells suggested that transcription factors (TFs) mark genes for swift reactivation, a phenomenon termed 'mitotic bookmarking', but conflicting data emerged regarding TF presence on mitotic chromosomes. Recent advancements in live-cell imaging and fixation-free genomics challenge the conventional belief in universal formaldehyde fixation, revealing dynamic TF interactions during mitosis. Here, we review recent studies that provide examples of at least four modes of TF-DNA interaction during mitosis and the molecular mechanisms that govern these interactions. Additionally, we explore the impact of these interactions on transcription initiation post-mitosis. Taken together, these recent studies call for a paradigm shift toward a dynamic model of TF behavior during mitosis, underscoring the need for incorporating dynamics in mechanistic models for re-establishing transcription post-mitosis.
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Affiliation(s)
- Marek A. Budzyński
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Alexander K.L. Wong
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Armin Faghihi
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Sheila S. Teves
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
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2
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Pérez-Mora S, Pérez-Ishiwara DG, Salgado-Hernández SV, Medel-Flores MO, Reyes-López CA, Rodríguez MA, Sánchez-Monroy V, Gómez-García MDC. Entamoeba histolytica: In Silico and In Vitro Oligomerization of EhHSTF5 Enhances Its Binding to the HSE of the EhPgp5 Gene Promoter. Int J Mol Sci 2024; 25:4218. [PMID: 38673804 PMCID: PMC11050682 DOI: 10.3390/ijms25084218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Throughout its lifecycle, Entamoeba histolytica encounters a variety of stressful conditions. This parasite possesses Heat Shock Response Elements (HSEs) which are crucial for regulating the expression of various genes, aiding in its adaptation and survival. These HSEs are regulated by Heat Shock Transcription Factors (EhHSTFs). Our research has identified seven such factors in the parasite, designated as EhHSTF1 through to EhHSTF7. Significantly, under heat shock conditions and in the presence of the antiamoebic compound emetine, EhHSTF5, EhHSTF6, and EhHSTF7 show overexpression, highlighting their essential role in gene response to these stressors. Currently, only EhHSTF7 has been confirmed to recognize the HSE as a promoter of the EhPgp5 gene (HSE_EhPgp5), leaving the binding potential of the other EhHSTFs to HSEs yet to be explored. Consequently, our study aimed to examine, both in vitro and in silico, the oligomerization, and binding capabilities of the recombinant EhHSTF5 protein (rEhHSTF5) to HSE_EhPgp5. The in vitro results indicate that the oligomerization of rEhHSTF5 is concentration-dependent, with its dimeric conformation showing a higher affinity for HSE_EhPgp5 than its monomeric state. In silico analysis suggests that the alpha 3 α-helix (α3-helix) of the DNA-binding domain (DBD5) of EhHSTF5 is crucial in binding to the major groove of HSE, primarily through hydrogen bonding and salt-bridge interactions. In summary, our results highlight the importance of oligomerization in enhancing the affinity of rEhHSTF5 for HSE_EhPgp5 and demonstrate its ability to specifically recognize structural motifs within HSE_EhPgp5. These insights significantly contribute to our understanding of one of the potential molecular mechanisms employed by this parasite to efficiently respond to various stressors, thereby enabling successful adaptation and survival within its host environment.
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Affiliation(s)
- Salvador Pérez-Mora
- Laboratorio de Biomedicina Molecular 1, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City 07320, Mexico; (S.P.-M.); (D.G.P.-I.); (S.V.S.-H.); (M.O.M.-F.)
| | - David Guillermo Pérez-Ishiwara
- Laboratorio de Biomedicina Molecular 1, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City 07320, Mexico; (S.P.-M.); (D.G.P.-I.); (S.V.S.-H.); (M.O.M.-F.)
| | - Sandra Viridiana Salgado-Hernández
- Laboratorio de Biomedicina Molecular 1, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City 07320, Mexico; (S.P.-M.); (D.G.P.-I.); (S.V.S.-H.); (M.O.M.-F.)
| | - María Olivia Medel-Flores
- Laboratorio de Biomedicina Molecular 1, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City 07320, Mexico; (S.P.-M.); (D.G.P.-I.); (S.V.S.-H.); (M.O.M.-F.)
| | - César Augusto Reyes-López
- Laboratorio de Bioquímica Estructural, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City 07320, Mexico;
| | - Mario Alberto Rodríguez
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Mexico City 07360, Mexico;
| | - Virginia Sánchez-Monroy
- Sección de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | - María del Consuelo Gómez-García
- Laboratorio de Biomedicina Molecular 1, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City 07320, Mexico; (S.P.-M.); (D.G.P.-I.); (S.V.S.-H.); (M.O.M.-F.)
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3
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Huiskes FG, Creemers EE, Brundel BJJM. Dissecting the Molecular Mechanisms Driving Electropathology in Atrial Fibrillation: Deployment of RNA Sequencing and Transcriptomic Analyses. Cells 2023; 12:2242. [PMID: 37759465 PMCID: PMC10526291 DOI: 10.3390/cells12182242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/30/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Despite many efforts to treat atrial fibrillation (AF), the most common progressive and age-related cardiac tachyarrhythmia in the Western world, the efficacy is still suboptimal. A plausible reason for this is that current treatments are not directed at underlying molecular root causes that drive electrical conduction disorders and AF (i.e., electropathology). Insights into AF-induced transcriptomic alterations may aid in a deeper understanding of electropathology. Specifically, RNA sequencing (RNA-seq) facilitates transcriptomic analyses and discovery of differences in gene expression profiles between patient groups. In the last decade, various RNA-seq studies have been conducted in atrial tissue samples of patients with AF versus controls in sinus rhythm. Identified differentially expressed molecular pathways so far include pathways related to mechanotransduction, ECM remodeling, ion channel signaling, and structural tissue organization through developmental and inflammatory signaling pathways. In this review, we provide an overview of the available human AF RNA-seq studies and highlight the molecular pathways identified. Additionally, a comparison is made between human RNA-seq findings with findings from experimental AF model systems and we discuss contrasting findings. Finally, we elaborate on new exciting RNA-seq approaches, including single-nucleotide variants, spatial transcriptomics and profiling of different populations of total RNA, small RNA and long non-coding RNA.
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Affiliation(s)
- Fabries G. Huiskes
- Department of Physiology, Amsterdam UMC, Location Vrije Universiteit, VUmc, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, 1081 HZ, Amsterdam, The Netherlands;
- Department of Experimental Cardiology, Amsterdam UMC, Location AMC, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, 1105 AZ Amsterdam, The Netherlands;
| | - Esther E. Creemers
- Department of Experimental Cardiology, Amsterdam UMC, Location AMC, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, 1105 AZ Amsterdam, The Netherlands;
| | - Bianca J. J. M. Brundel
- Department of Physiology, Amsterdam UMC, Location Vrije Universiteit, VUmc, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, 1081 HZ, Amsterdam, The Netherlands;
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4
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Price RM, Budzyński MA, Shen J, Mitchell JE, Kwan JJ, Teves S. Heat shock transcription factors demonstrate a distinct mode of interaction with mitotic chromosomes. Nucleic Acids Res 2023; 51:5040-5055. [PMID: 37114996 PMCID: PMC10250243 DOI: 10.1093/nar/gkad304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 04/05/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
A large number of transcription factors have been shown to bind and interact with mitotic chromosomes, which may promote the efficient reactivation of transcriptional programs following cell division. Although the DNA-binding domain (DBD) contributes strongly to TF behavior, the mitotic behaviors of TFs from the same DBD family may vary. To define the mechanisms governing TF behavior during mitosis in mouse embryonic stem cells, we examined two related TFs: Heat Shock Factor 1 and 2 (HSF1 and HSF2). We found that HSF2 maintains site-specific binding genome-wide during mitosis, whereas HSF1 binding is somewhat decreased. Surprisingly, live-cell imaging shows that both factors appear excluded from mitotic chromosomes to the same degree, and are similarly more dynamic in mitosis than in interphase. Exclusion from mitotic DNA is not due to extrinsic factors like nuclear import and export mechanisms. Rather, we found that the HSF DBDs can coat mitotic chromosomes, and that HSF2 DBD is able to establish site-specific binding. These data further confirm that site-specific binding and chromosome coating are independent properties, and that for some TFs, mitotic behavior is largely determined by the non-DBD regions.
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Affiliation(s)
- Rachel M Price
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver BC V6T 1Z3, Canada
| | - Marek A Budzyński
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver BC V6T 1Z3, Canada
| | - Junzhou Shen
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver BC V6T 1Z3, Canada
| | - Jennifer E Mitchell
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver BC V6T 1Z3, Canada
| | - James Z J Kwan
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver BC V6T 1Z3, Canada
| | - Sheila S Teves
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver BC V6T 1Z3, Canada
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5
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Mitochondria in Cryptococcus: an update of mitochondrial transcriptional regulation in Cryptococcus. Curr Genet 2023; 69:1-6. [PMID: 36729179 DOI: 10.1007/s00294-023-01261-7] [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: 01/19/2023] [Accepted: 01/19/2023] [Indexed: 02/03/2023]
Abstract
Encapsulated Cryptococcus species are responsible for approximately 15% of AIDS-related mortality. Numerous intriguing investigations have demonstrated that mitochondria play a crucial role in the pathogen-host axis of microorganisms. Mitochondria are vital energy-generating organelles, but they also regulate a variety of cellular activities, such as fungal adaptability in the host and drug resistance. Mitochondria are also the source of reactive oxygen species, which serve as intracellular messengers but are harmful when produced in excess. Thus, precise and stringent regulation of mitochondrial activity, including oxidative phosphorylation and the ROS detoxification process, is essential to ensure that only the amount required to maintain basic biological activities and prevent ROS toxicity in the cell is maintained. However, the relationship between mitochondria and the pathogenicity of Cryptococcus remains poorly understood. In this review, we focus on transcription regulation and maintenance of mitochondrial function along the pathogen-host interaction axis, as well as prospective antifungal strategies that target mitochondria.
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6
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Suo C, Gao Y, Ding C, Sun T. The function and regulation of heat shock transcription factor in Cryptococcus. Front Cell Infect Microbiol 2023; 13:1195968. [PMID: 37168390 PMCID: PMC10165103 DOI: 10.3389/fcimb.2023.1195968] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 04/10/2023] [Indexed: 05/13/2023] Open
Abstract
Cryptococcus species are opportunistic human fungal pathogens. Survival in a hostile environment, such as the elevated body temperatures of transmitting animals and humans, is crucial for Cryptococcus infection. Numerous intriguing investigations have shown that the Hsf family of thermotolerance transcription regulators plays a crucial role in the pathogen-host axis of Cryptococcus. Although Hsf1 is known to be a master regulator of the heat shock response through the activation of gene expression of heat shock proteins (Hsps). Hsf1 and other Hsfs are multifaceted transcription regulators that regulate the expression of genes involved in protein chaperones, metabolism, cell signal transduction, and the electron transfer chain. In Saccharomyces cerevisiae, a model organism, Hsf1's working mechanism has been intensively examined. Nonetheless, the link between Hsfs and Cryptococcus pathogenicity remains poorly understood. This review will focus on the transcriptional regulation of Hsf function in Cryptococcus, as well as potential antifungal treatments targeting Hsf proteins.
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Affiliation(s)
- Chenhao Suo
- College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Yiru Gao
- College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Chen Ding
- College of Life and Health Sciences, Northeastern University, Shenyang, China
- *Correspondence: Tianshu Sun, ; Chen Ding,
| | - Tianshu Sun
- Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
- *Correspondence: Tianshu Sun, ; Chen Ding,
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7
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Kim H, Gomez-Pastor R. HSF1 and Its Role in Huntington's Disease Pathology. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1410:35-95. [PMID: 36396925 DOI: 10.1007/5584_2022_742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
PURPOSE OF REVIEW Heat shock factor 1 (HSF1) is the master transcriptional regulator of the heat shock response (HSR) in mammalian cells and is a critical element in maintaining protein homeostasis. HSF1 functions at the center of many physiological processes like embryogenesis, metabolism, immune response, aging, cancer, and neurodegeneration. However, the mechanisms that allow HSF1 to control these different biological and pathophysiological processes are not fully understood. This review focuses on Huntington's disease (HD), a neurodegenerative disease characterized by severe protein aggregation of the huntingtin (HTT) protein. The aggregation of HTT, in turn, leads to a halt in the function of HSF1. Understanding the pathways that regulate HSF1 in different contexts like HD may hold the key to understanding the pathomechanisms underlying other proteinopathies. We provide the most current information on HSF1 structure, function, and regulation, emphasizing HD, and discussing its potential as a biological target for therapy. DATA SOURCES We performed PubMed search to find established and recent reports in HSF1, heat shock proteins (Hsp), HD, Hsp inhibitors, HSF1 activators, and HSF1 in aging, inflammation, cancer, brain development, mitochondria, synaptic plasticity, polyglutamine (polyQ) diseases, and HD. STUDY SELECTIONS Research and review articles that described the mechanisms of action of HSF1 were selected based on terms used in PubMed search. RESULTS HSF1 plays a crucial role in the progression of HD and other protein-misfolding related neurodegenerative diseases. Different animal models of HD, as well as postmortem brains of patients with HD, reveal a connection between the levels of HSF1 and HSF1 dysfunction to mutant HTT (mHTT)-induced toxicity and protein aggregation, dysregulation of the ubiquitin-proteasome system (UPS), oxidative stress, mitochondrial dysfunction, and disruption of the structural and functional integrity of synaptic connections, which eventually leads to neuronal loss. These features are shared with other neurodegenerative diseases (NDs). Currently, several inhibitors against negative regulators of HSF1, as well as HSF1 activators, are developed and hold promise to prevent neurodegeneration in HD and other NDs. CONCLUSION Understanding the role of HSF1 during protein aggregation and neurodegeneration in HD may help to develop therapeutic strategies that could be effective across different NDs.
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Affiliation(s)
- Hyuck Kim
- Department of Neuroscience, School of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Rocio Gomez-Pastor
- Department of Neuroscience, School of Medicine, University of Minnesota, Minneapolis, MN, USA.
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8
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Roos-Mattjus P, Sistonen L. Interplay between mammalian heat shock factors 1 and 2 in physiology and pathology. FEBS J 2022; 289:7710-7725. [PMID: 34478606 DOI: 10.1111/febs.16178] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/17/2021] [Accepted: 09/02/2021] [Indexed: 01/14/2023]
Abstract
The heat-shock factors (HSFs) belong to an evolutionary conserved family of transcription factors that were discovered already over 30 years ago. The HSFs have been shown to a have a broad repertoire of target genes, and they also have crucial functions during normal development. Importantly, HSFs have been linked to several disease states, such as neurodegenerative disorders and cancer, highlighting their importance in physiology and pathology. However, it is still unclear how HSFs are regulated and how they choose their specific target genes under different conditions. Posttranslational modifications and interplay among the HSF family members have been shown to be key regulatory mechanisms for these transcription factors. In this review, we focus on the mammalian HSF1 and HSF2, including their interplay, and provide an updated overview of the advances in understanding how HSFs are regulated and how they function in multiple processes of development, aging, and disease. We also discuss HSFs as therapeutic targets, especially the recently reported HSF1 inhibitors.
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Affiliation(s)
- Pia Roos-Mattjus
- Faculty of Science and Engineering, Biochemistry, Åbo Akademi University, Turku, Finland.,Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Lea Sistonen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
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9
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Kovács D, Kovács M, Ahmed S, Barna J. Functional diversification of heat shock factors. Biol Futur 2022; 73:427-439. [PMID: 36402935 DOI: 10.1007/s42977-022-00138-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 11/08/2022] [Indexed: 11/21/2022]
Abstract
Heat shock transcription factors (HSFs) are widely known as master regulators of the heat shock response. In invertebrates, a single heat shock factor, HSF1, is responsible for the maintenance of protein homeostasis. In vertebrates, seven members of the HSF family have been identified, namely HSF1, HSF2, HSF3, HSF4, HSF5, HSFX, and HSFY, of which HSF1 and HSF2 are clearly associated with heat shock response, while HSF4 is involved in development. Other members of the family have not yet been studied as extensively. Besides their role in cellular proteostasis, HSFs influence a plethora of biological processes such as aging, development, cell proliferation, and cell differentiation, and they are implicated in several pathologies such as neurodegeneration and cancer. This is achieved by regulating the expression of a great variety of genes including chaperones. Here, we review our current knowledge on the function of HSF family members and important aspects that made possible the functional diversification of HSFs.
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Affiliation(s)
- Dániel Kovács
- Department of Genetics, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, H-1117, Hungary
| | - Márton Kovács
- Department of Genetics, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, H-1117, Hungary
| | - Saqib Ahmed
- Department of Genetics, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, H-1117, Hungary
| | - János Barna
- Department of Genetics, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, H-1117, Hungary. .,ELKH-ELTE Genetics Research Group, Pázmány Péter sétány 1/c, Budapest, H-1117, Hungary.
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10
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de Thonel A, Ahlskog JK, Daupin K, Dubreuil V, Berthelet J, Chaput C, Pires G, Leonetti C, Abane R, Barris LC, Leray I, Aalto AL, Naceri S, Cordonnier M, Benasolo C, Sanial M, Duchateau A, Vihervaara A, Puustinen MC, Miozzo F, Fergelot P, Lebigot É, Verloes A, Gressens P, Lacombe D, Gobbo J, Garrido C, Westerheide SD, David L, Petitjean M, Taboureau O, Rodrigues-Lima F, Passemard S, Sabéran-Djoneidi D, Nguyen L, Lancaster M, Sistonen L, Mezger V. CBP-HSF2 structural and functional interplay in Rubinstein-Taybi neurodevelopmental disorder. Nat Commun 2022; 13:7002. [PMID: 36385105 PMCID: PMC9668993 DOI: 10.1038/s41467-022-34476-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 10/24/2022] [Indexed: 11/17/2022] Open
Abstract
Patients carrying autosomal dominant mutations in the histone/lysine acetyl transferases CBP or EP300 develop a neurodevelopmental disorder: Rubinstein-Taybi syndrome (RSTS). The biological pathways underlying these neurodevelopmental defects remain elusive. Here, we unravel the contribution of a stress-responsive pathway to RSTS. We characterize the structural and functional interaction between CBP/EP300 and heat-shock factor 2 (HSF2), a tuner of brain cortical development and major player in prenatal stress responses in the neocortex: CBP/EP300 acetylates HSF2, leading to the stabilization of the HSF2 protein. Consequently, RSTS patient-derived primary cells show decreased levels of HSF2 and HSF2-dependent alteration in their repertoire of molecular chaperones and stress response. Moreover, we unravel a CBP/EP300-HSF2-N-cadherin cascade that is also active in neurodevelopmental contexts, and show that its deregulation disturbs neuroepithelial integrity in 2D and 3D organoid models of cerebral development, generated from RSTS patient-derived iPSC cells, providing a molecular reading key for this complex pathology.
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Affiliation(s)
- Aurélie de Thonel
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France.
| | - Johanna K Ahlskog
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Kevin Daupin
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Véronique Dubreuil
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Jérémy Berthelet
- Université de Paris, CNRS, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
| | - Carole Chaput
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
- Ksilink, Strasbourg, France
| | - Geoffrey Pires
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Camille Leonetti
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Ryma Abane
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Lluís Cordón Barris
- Laboratory of Molecular Regulation of Neurogenesis, GIGA-Stem Cells and GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, CHU Sart Tilman, Liège, Belgium
| | - Isabelle Leray
- Université de Nantes, CHU Nantes, Inserm, CNRS, SFR Santé, Inserm UMS 016, CNRS UMS 3556, F-44000, Nantes, France
| | - Anna L Aalto
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Sarah Naceri
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Marine Cordonnier
- INSERM, UMR1231, Laboratoire d'Excellence LipSTIC, Dijon, France
- University of Bourgogne Franche-Comté, Dijon, France
- Département d'Oncologie médicale, Centre Georges-François Leclerc, Dijon, France
| | - Carène Benasolo
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Matthieu Sanial
- CNRS, UMR 7592 Institut Jacques Monod, F-75205, Paris, France
| | - Agathe Duchateau
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Anniina Vihervaara
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
- KTH Royal Institute of Technology, Stockholm, Sweden
| | - Mikael C Puustinen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Federico Miozzo
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
- Neuroscience Institute-CNR (IN-CNR), Milan, Italy
| | - Patricia Fergelot
- Department of Medical Genetics, University Hospital of Bordeaux, Bordeaux, France and INSERM U1211, University of Bordeaux, Bordeaux, France
| | - Élise Lebigot
- Service de Biochimie-pharmaco-toxicologie, Hôpital Bicêtre, Hopitaux Universitaires Paris-Sud, 94270 Le Kremlin Bicêtre, Paris-Sud, France
| | - Alain Verloes
- Université de Paris, INSERM, NeuroDiderot, Robert-Debré Hospital, F-75019, Paris, France
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Pierre Gressens
- Université de Paris, INSERM, NeuroDiderot, Robert-Debré Hospital, F-75019, Paris, France
| | - Didier Lacombe
- Department of Medical Genetics, University Hospital of Bordeaux, Bordeaux, France and INSERM U1211, University of Bordeaux, Bordeaux, France
| | - Jessica Gobbo
- INSERM, UMR1231, Laboratoire d'Excellence LipSTIC, Dijon, France
- University of Bourgogne Franche-Comté, Dijon, France
- Département d'Oncologie médicale, Centre Georges-François Leclerc, Dijon, France
| | - Carmen Garrido
- INSERM, UMR1231, Laboratoire d'Excellence LipSTIC, Dijon, France
- University of Bourgogne Franche-Comté, Dijon, France
- Département d'Oncologie médicale, Centre Georges-François Leclerc, Dijon, France
| | - Sandy D Westerheide
- Department of Cell Biology, Microbiology, and Molecular Biology, College of Arts and Sciences, University of South Florida, Tampa, FL, USA
| | - Laurent David
- Université de Nantes, CHU Nantes, Inserm, CNRS, SFR Santé, Inserm UMS 016, CNRS UMS 3556, F-44000, Nantes, France
| | - Michel Petitjean
- Université de Paris, CNRS, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
| | - Olivier Taboureau
- Université de Paris, CNRS, Unité de Biologie Fonctionnelle et Adaptative, Paris, France
| | | | - Sandrine Passemard
- Université de Paris, INSERM, NeuroDiderot, Robert-Debré Hospital, F-75019, Paris, France
| | | | - Laurent Nguyen
- Laboratory of Molecular Regulation of Neurogenesis, GIGA-Stem Cells and GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, CHU Sart Tilman, Liège, Belgium
| | - Madeline Lancaster
- MRC Laboratory of Molecular Biology, Cambridge Biomedical, Campus, Cambridge, UK
| | - Lea Sistonen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Valérie Mezger
- Université de Paris, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France.
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11
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HSF2BP protects against acute liver injury by regulating HSF2/HSP70/MAPK signaling in mice. Cell Death Dis 2022; 13:830. [PMID: 36167792 PMCID: PMC9515097 DOI: 10.1038/s41419-022-05282-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 01/23/2023]
Abstract
Heat shock proteins (HSPs) depletion and protein misfolding are important causes of hepatocyte death and liver regeneration disorder in liver injury. HSF2BP, as its name implies, is a binding protein of HSF2, but the specific role of HSF2BP in heat shock response (HSR) remains unknown. The aim of this study is to identify the role of HSF2BP in HSR and acute liver injury. In this study, we found that HSF2BP expression increased significantly within 24 h after APAP administration, and the trend was highly consistent with that of HSP70. hsf2bp-KO and hsf2bp-TG mouse models demonstrated HSF2BP reduced hepatocyte death, ameliorated inflammation, and improved liver function in APAP- or D-GalN/LPS- induced liver injury. Meanwhile, a significant increase of the survival rate was observed in hsf2bp-TG mice after APAP administration. Further studies showed that HSF2BP upregulated the expression of HSF2 and HSP70 and inhibited the activation of Jnk1/2 and P38 MAPK. Additionally, HSP70 siRNA pretreatment abolished the effect of HSF2BP on the MAPK pathway in APAP-treated hepatocytes. The results reveal that HSF2BP is a protective factor in acute liver injury, and the HSF2BP/HSP70/MAPK regulatory axis is crucial for the pathogenesis of liver injury. HSF2BP is a potential therapeutic target for liver injury.
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12
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Xu X, Lin Y, Zeng X, Yang C, Duan S, Ding L, Lu W, Lin J, Pan X, Ma X, Liu S. PARP1 Might Substitute HSF1 to Reactivate Latent HIV-1 by Binding to Heat Shock Element. Cells 2022; 11:cells11152331. [PMID: 35954175 PMCID: PMC9367301 DOI: 10.3390/cells11152331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/29/2022] [Accepted: 07/25/2022] [Indexed: 01/27/2023] Open
Abstract
At present, the barrier to HIV-1 functional cure is the persistence of HIV-1 reservoirs. The “shock (reversing latency) and kill (antiretroviral therapy)” strategy sheds light on reducing or eliminating the latent reservoir of HIV-1. However, the current limits of latency-reversing agents (LRAs) are their toxicity or side effects, which limit their practicability pharmacologically and immunologically. Our previous research found that HSF1 is a key transcriptional regulatory factor in the reversion of HIV-1 latency. We then constructed the in vitro HSF1-knockout (HSF1-KO) HIV-1 latency models and found that HSF1 depletion inhibited the reactivation ability of LRAs including salubrinal, carfizomib, bortezomib, PR-957 and resveratrol, respectively. Furthermore, bortezomib/carfizomib treatment induced the increase of heat shock elements (HSEs) activity after HSF1-KO, suggesting that HSEs participated in reversing the latent HIV-1. Subsequent investigation showed that latent HIV-1-reversal by H2O2-induced DNA damage was inhibited by PARP1 inhibitors, while PARP1 was unable to down-regulate HSF1-depleted HSE activity, indicating that PARP1 could serve as a replaceable protein for HSF1 in HIV-1 latent cells. In summary, we succeeded in finding the mechanisms by which HSF1 reactivates the latent HIV-1, which also provides a theoretical basis for the further development of LRAs that specifically target HSF1.
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Affiliation(s)
- Xinfeng Xu
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
| | - Yingtong Lin
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaoyun Zeng
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
- Department of Pharmacy, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Chan Yang
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
| | - Siqin Duan
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
| | - Liqiong Ding
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
- School of Pharmaceutical Sciences, Hubei University of Science and Technology, Xianning 437100, China
| | - Wanzhen Lu
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
| | - Jian Lin
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
- Department of Pharmacy, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Xiaoyan Pan
- Center for Biosafety Mega-Science, State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China;
| | - Xiancai Ma
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
- Guangzhou Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China
- Correspondence: (X.M.); (S.L.)
| | - Shuwen Liu
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; (X.X.); (Y.L.); (X.Z.); (C.Y.); (S.D.); (L.D.); (W.L.); (J.L.)
- Correspondence: (X.M.); (S.L.)
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13
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Gong M, Zhang F, Miao Y, Niu J. Advances of Heat Shock Family in Ulcerative Colitis. Front Pharmacol 2022; 13:869930. [PMID: 35645809 PMCID: PMC9133716 DOI: 10.3389/fphar.2022.869930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 04/25/2022] [Indexed: 11/29/2022] Open
Abstract
Ulcerative Colitis (UC) is a non-specific and chronic inflammatory disease of colonic mucosa whose exact etiology and mechanisms remain unclear. The incidence rate of UC is increasing year by year worldwide. What followed is that the medical costs are also rising rapidly. Therefore, it is urgent to understand the pathogenesis and find promising therapeutic targets for UC. Intestinal mucosal homeostasis is essential for normal bowel function, and its imbalance may be an important pathogenesis of UC. Endogenous homeostatic regulators play roles in repairing intestinal mucosa injury after stress. Heat shock family proteins are essential endogenous homeostasis factors. They can inhibit inflammation, regulate intestinal epithelial cells’ survival and death, and promote mucosal healing. Thus, they play important roles in sustaining intestinal mucosal homeostasis and protecting against UC progression. However, the heat shock family may promote UC carcinogenesis. Here, we summarize the advances in the research of the functions of the heat shock family in UC. And this review is an attempt to light on the etiopathogenesis of UC, highlighting the endogenous protective mechanisms, hoping to provide a novel therapeutic target for UC treatment.
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Affiliation(s)
- Min Gong
- Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- Yunnan Province Clinical Research Center for Digestive Diseases, Kunming, China
| | - Fengrui Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- Yunnan Province Clinical Research Center for Digestive Diseases, Kunming, China
| | - Yinglei Miao
- Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- Yunnan Province Clinical Research Center for Digestive Diseases, Kunming, China
- *Correspondence: Yinglei Miao, ; Junkun Niu,
| | - Junkun Niu
- Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- Yunnan Province Clinical Research Center for Digestive Diseases, Kunming, China
- *Correspondence: Yinglei Miao, ; Junkun Niu,
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14
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Parakkunnel R, Bhojaraja Naik K, Susmita C, Girimalla V, Bhaskar KU, Sripathy KV, Shantharaja CS, Aravindan S, Kumar S, Lakhanpaul S, Bhat KV. Evolution and co-evolution: insights into the divergence of plant heat shock factor genes. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:1029-1047. [PMID: 35722513 PMCID: PMC9203654 DOI: 10.1007/s12298-022-01183-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/27/2022] [Accepted: 05/04/2022] [Indexed: 05/03/2023]
Abstract
The Heat Shock Factor (Hsf) genes are widely distributed across the plant kingdom regulating the plant response to various abiotic stresses. In addition to natural selection, breeding and accelerated selection changed the structure and function of Hsf genes. 1076 Hsf genes from 30 genera from primitive algae to the most advanced plant species and major crop plants were used for phylogenetic analysis. The interspecific divergence was studied with 11 members of genus Oryza while intraspecific divergence was studied with sesame pan-genome adapted to diverse ecological niches. B2 genes in eudicots and monocots originated separately while A1 gave rise to the recently evolved Class-C genes and land colonization happened with evolution of A1 genes. An increase in the number of lineages in the Oryza clade with the evolution of AA genome indicated independent domestication and positive selection was observed in > 53% of loci whereas the highly conserved homologues were under purifying selection. The paralogous genes under positive selection exhibited more domain changes for diversified function and increased fitness. A significant co-evolving cluster involving amino acids Phenylalanine, Lysine and Valine played crucial role in maintaining hydrophobic core along with highly conserved Tryptophan residues. A mutation of Glutamic acid to Glutamine was observed in A8 genes of Lamiales affecting protein solvency. Breeding resulted in accumulation of mutations reducing the hydrophobicity of proteins and a further reduction in protein aggregation. This study identify genome duplications, non-neutral selection and co-evolving residues as causing drastic changes in the conserved domain of Hsf proteins. Supplementary information The online version contains supplementary material available at 10.1007/s12298-022-01183-7.
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Affiliation(s)
- Ramya Parakkunnel
- ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, Karnataka 560065 India
| | - K Bhojaraja Naik
- ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, Karnataka 560065 India
| | - C Susmita
- ICAR- Indian Institute of Seed Science, Mau, Uttar Pradesh 275103 India
| | - Vanishree Girimalla
- ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, Karnataka 560065 India
| | - K Udaya Bhaskar
- ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, Karnataka 560065 India
| | - KV Sripathy
- ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, Karnataka 560065 India
| | - CS Shantharaja
- ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, Karnataka 560065 India
| | - S Aravindan
- 4Division of Genomic Resources, ICAR- National Bureau of Plant Genetic Resources, New Delhi, 110012 India
| | - Sanjay Kumar
- ICAR- Indian Institute of Seed Science, Mau, Uttar Pradesh 275103 India
| | | | - KV Bhat
- 4Division of Genomic Resources, ICAR- National Bureau of Plant Genetic Resources, New Delhi, 110012 India
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15
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Reyes A, Navarro AJ, Diethelm-Varela B, Kalergis AM, González PA. Is there a role for HSF1 in viral infections? FEBS Open Bio 2022; 12:1112-1124. [PMID: 35485710 PMCID: PMC9157408 DOI: 10.1002/2211-5463.13419] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/29/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022] Open
Abstract
Cells undergo numerous processes to adapt to new challenging conditions and stressors. Heat stress is regulated by a family of heat shock factors (HSFs) that initiate a heat shock response by upregulating the expression of heat shock proteins (HSPs) intended to counteract cellular damage elicited by increased environmental temperature. Heat shock factor 1 (HSF1) is known as the master regulator of the heat shock response and upon its activation induces the transcription of genes that encode for molecular chaperones, such as HSP40, HSP70, and HSP90. Importantly, an accumulating body of studies relates HSF1 with viral infections; the induction of fever during viral infection may activate HSF1 and trigger a consequent heat shock response. Here, we review the role of HSF1 in different viral infections and its impact on the health outcome for the host. Studying the relationship between HSF1 and viruses could open new potential therapeutic strategies given the availability of drugs that regulate the activation of this transcription factor.
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Affiliation(s)
- Antonia Reyes
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile
| | - Areli J Navarro
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile
| | - Benjamín Diethelm-Varela
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile.,Departamento de Endocrinología, Escuela de Medicina, Facultad de Medicina Pontificia, Universidad Católica de Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile
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16
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Smith RS, Takagishi SR, Amici DR, Metz K, Gayatri S, Alasady MJ, Wu Y, Brockway S, Taiberg SL, Khalatyan N, Taipale M, Santagata S, Whitesell L, Lindquist S, Savas JN, Mendillo ML. HSF2 cooperates with HSF1 to drive a transcriptional program critical for the malignant state. SCIENCE ADVANCES 2022; 8:eabj6526. [PMID: 35294249 PMCID: PMC8926329 DOI: 10.1126/sciadv.abj6526] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 01/25/2022] [Indexed: 05/14/2023]
Abstract
Heat shock factor 1 (HSF1) is well known for its role in the heat shock response (HSR), where it drives a transcriptional program comprising heat shock protein (HSP) genes, and in tumorigenesis, where it drives a program comprising HSPs and many noncanonical target genes that support malignancy. Here, we find that HSF2, an HSF1 paralog with no substantial role in the HSR, physically and functionally interacts with HSF1 across diverse types of cancer. HSF1 and HSF2 have notably similar chromatin occupancy and regulate a common set of genes that include both HSPs and noncanonical transcriptional targets with roles critical in supporting malignancy. Loss of either HSF1 or HSF2 results in a dysregulated response to nutrient stresses in vitro and reduced tumor progression in cancer cell line xenografts. Together, these findings establish HSF2 as a critical cofactor of HSF1 in driving a cancer cell transcriptional program to support the anabolic malignant state.
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Affiliation(s)
- Roger S. Smith
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Seesha R. Takagishi
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Biochemistry and Biophysics, UCSF, San Francisco, CA 94158, USA
- Tetrad Graduate Program, UCSF, San Francisco, CA 94143, USA
| | - David R. Amici
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Kyle Metz
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Sitaram Gayatri
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Milad J. Alasady
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Yaqi Wu
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Master of Biotechnology Program, Northwestern University, Evanston, IL 60208, USA
| | - Sonia Brockway
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Stephanie L. Taiberg
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Natalia Khalatyan
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Mikko Taipale
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
- Molecular Architecture of Life Program, Canadian Institute for Advanced Research (CIFAR), Toronto, ON, Canada
| | - Sandro Santagata
- Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA 02115, USA
- Ludwig Center at Harvard, Boston, MA 02115, USA
| | - Luke Whitesell
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Susan Lindquist
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
- Massachusetts Institute of Technology, Cambridge, MA 02142, USA
- Howard Hughes Medical Institute, Cambridge, MA 02139, USA
| | - Jeffrey N. Savas
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Marc L. Mendillo
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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17
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Heat Shock Factors in Protein Quality Control and Spermatogenesis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1391:181-199. [PMID: 36472823 DOI: 10.1007/978-3-031-12966-7_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Proper regulation of cellular protein quality control is crucial for cellular health. It appears that the protein quality control machinery is subjected to distinct regulation in different cellular contexts such as in somatic cells and in germ cells. Heat shock factors (HSFs) play critical role in the control of quality of cellular proteins through controlling expression of many genes encoding different proteins including those for inducible protein chaperones. Mammalian cells exert distinct mechanism of cellular functions through maintenance of tissue-specific HSFs. Here, we have discussed different HSFs and their functions including those during spermatogenesis. We have also discussed the different heat shock proteins induced by the HSFs and their activities in those contexts. We have also identified several small molecule activators and inhibitors of HSFs from different sources reported so far.
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18
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Bello F, Orozco E, Benítez-Cardoza CG, Zamorano-Carrillo A, Reyes-López CA, Pérez-Ishiwara DG, Gómez-García C. The novel EhHSTF7 transcription factor displays an oligomer state and recognizes a heat shock element in the Entamoeba histolytica parasite. Microb Pathog 2021; 162:105349. [PMID: 34864144 DOI: 10.1016/j.micpath.2021.105349] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/01/2021] [Accepted: 12/01/2021] [Indexed: 01/09/2023]
Abstract
The heat shock response is a conserved mechanism that allows cells to respond and survive stress damage and is transcriptionally regulated by the heat shock factors and heat shock elements. The P-glycoprotein confer the multidrug resistance phenotype; Entamoeba histolytica has the largest multidrug resistance gene family described so far; one of these genes, the EhPgp5 gene, has an emetine-inducible expression. A functional heat shock element was localized in the EhPgp5 gene promoter, indicating transcriptional regulation by heat shock factors. In this work, we determined the oligomer state of EhHSTF7 and the recognition of the heat shock element of the EhPgp5 gene. The EhHSTF7 recombinant protein was obtained as monomer and oligomer. In silico molecular docking predicts protein-DNA binding between EhHSTF7 and 5'-GAA-3' complementary bases. The rEhHSTF7 protein specifically binds to the heat shock element of the EhPgp5 gene in gel shift assays. The competition assays with heat shock element mutants indicate that 5'-GAA-3' complementary bases are necessary for the rEhHSTF7 binding. Finally, the siRNA-mediated knockdown of Ehhstf7 expression causes downregulation of EhPgp5 expression, suggesting that EhHSTF7 is likely to play a key role in the E. histolytica multidrug resistance. This is the first report of a transcription factor that recognizes a heat shock element from a gene involved in drug resistance in parasites. However, further analysis needs to demonstrate the biological relevance of the EhHSTF7 and the rest of the heat shock factors of E. histolytica, to understand the underlying regulation of transcriptional control in response to stress.
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Affiliation(s)
- Fabiola Bello
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Gustavo A. Madero, 07360, Mexico City, Mexico
| | - Esther Orozco
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Gustavo A. Madero, 07360, Mexico City, Mexico
| | - Claudia G Benítez-Cardoza
- Programa Institucional en Biomedicina Molecular, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, La Escalera, Gustavo A. Madero, 07320, Mexico City, Mexico
| | - Absalom Zamorano-Carrillo
- Programa Institucional en Biomedicina Molecular, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, La Escalera, Gustavo A. Madero, 07320, Mexico City, Mexico
| | - César A Reyes-López
- Programa Institucional en Biomedicina Molecular, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, La Escalera, Gustavo A. Madero, 07320, Mexico City, Mexico
| | - D Guillermo Pérez-Ishiwara
- Programa Institucional en Biomedicina Molecular, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, La Escalera, Gustavo A. Madero, 07320, Mexico City, Mexico
| | - Consuelo Gómez-García
- Programa Institucional en Biomedicina Molecular, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, La Escalera, Gustavo A. Madero, 07320, Mexico City, Mexico.
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19
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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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20
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Structures of heat shock factor trimers bound to DNA. iScience 2021; 24:102951. [PMID: 34458700 PMCID: PMC8379338 DOI: 10.1016/j.isci.2021.102951] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 05/15/2021] [Accepted: 08/02/2021] [Indexed: 12/14/2022] Open
Abstract
Heat shock factor 1 (HSF1) and 2 (HSF2) play distinct but overlapping regulatory roles in maintaining cellular proteostasis or mediating cell differentiation and development. Upon activation, both HSFs trimerize and bind to heat shock elements (HSEs) present in the promoter region of target genes. Despite structural insights gained from recent studies, structures reflecting the physiological architecture of this transcriptional machinery remains to be determined. Here, we present co-crystal structures of human HSF1 and HSF2 trimers bound to DNA, which reveal a triangular arrangement of the three DNA-binding domains (DBDs) with protein-protein interactions largely mediated by the wing domain. Two structural properties, different flexibility of the wing domain and local DNA conformational changes induced by HSF binding, seem likely to contribute to the subtle differential specificity between HSF1 and HSF2. Besides, two more structures showing DBDs bound to "two-site" head-to-head HSEs were determined as additions to the published tail-to-tail dimer-binding structures.
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21
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Joutsen J, Da Silva AJ, Luoto JC, Budzynski MA, Nylund AS, de Thonel A, Concordet JP, Mezger V, Sabéran-Djoneidi D, Henriksson E, Sistonen L. Heat Shock Factor 2 Protects against Proteotoxicity by Maintaining Cell-Cell Adhesion. Cell Rep 2021; 30:583-597.e6. [PMID: 31940498 DOI: 10.1016/j.celrep.2019.12.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/15/2019] [Accepted: 12/12/2019] [Indexed: 12/13/2022] Open
Abstract
Maintenance of protein homeostasis, through inducible expression of molecular chaperones, is essential for cell survival under protein-damaging conditions. The expression and DNA-binding activity of heat shock factor 2 (HSF2), a member of the heat shock transcription factor family, increase upon exposure to prolonged proteotoxicity. Nevertheless, the specific roles of HSF2 and the global HSF2-dependent gene expression profile during sustained stress have remained unknown. Here, we found that HSF2 is critical for cell survival during prolonged proteotoxicity. Strikingly, our RNA sequencing (RNA-seq) analyses revealed that impaired viability of HSF2-deficient cells is not caused by inadequate induction of molecular chaperones but is due to marked downregulation of cadherin superfamily genes. We demonstrate that HSF2-dependent maintenance of cadherin-mediated cell-cell adhesion is required for protection against stress induced by proteasome inhibition. This study identifies HSF2 as a key regulator of cadherin superfamily genes and defines cell-cell adhesion as a determinant of proteotoxic stress resistance.
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Affiliation(s)
- Jenny Joutsen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland; Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland
| | - Alejandro Jose Da Silva
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland; Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland
| | - Jens Christian Luoto
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland; Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland
| | - Marek Andrzej Budzynski
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland; Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland
| | - Anna Serafia Nylund
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland; Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland
| | - Aurelie de Thonel
- CNRS, UMR 7216 "Epigenetic and Cell Fate," 75250 Paris Cedex 13, France; University of Paris Diderot, Sorbonne Paris Cité, 75250 Paris Cedex 13, France; Département Hospitalo-Universitaire DHU PROTECT, Paris, France
| | - Jean-Paul Concordet
- INSERM U1154, CNRS UMR 7196, Muséum National d'Histoire Naturelle, Paris, France
| | - Valérie Mezger
- CNRS, UMR 7216 "Epigenetic and Cell Fate," 75250 Paris Cedex 13, France; University of Paris Diderot, Sorbonne Paris Cité, 75250 Paris Cedex 13, France; Département Hospitalo-Universitaire DHU PROTECT, Paris, France
| | - Délara Sabéran-Djoneidi
- CNRS, UMR 7216 "Epigenetic and Cell Fate," 75250 Paris Cedex 13, France; University of Paris Diderot, Sorbonne Paris Cité, 75250 Paris Cedex 13, France; Département Hospitalo-Universitaire DHU PROTECT, Paris, France
| | - Eva Henriksson
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland; Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland
| | - Lea Sistonen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland; Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland.
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22
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Santopolo S, Riccio A, Rossi A, Santoro MG. The proteostasis guardian HSF1 directs the transcription of its paralog and interactor HSF2 during proteasome dysfunction. Cell Mol Life Sci 2021; 78:1113-1129. [PMID: 32607595 PMCID: PMC11071745 DOI: 10.1007/s00018-020-03568-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 05/03/2020] [Accepted: 05/28/2020] [Indexed: 02/06/2023]
Abstract
Protein homeostasis is essential for life in eukaryotes. Organisms respond to proteotoxic stress by activating heat shock transcription factors (HSFs), which play important roles in cytoprotection, longevity and development. Of six human HSFs, HSF1 acts as a proteostasis guardian regulating stress-induced transcriptional responses, whereas HSF2 has a critical role in development, in particular of brain and reproductive organs. Unlike HSF1, that is a stable protein constitutively expressed, HSF2 is a labile protein and its expression varies in different tissues; however, the mechanisms regulating HSF2 expression remain poorly understood. Herein we demonstrate that the proteasome inhibitor anticancer drug bortezomib (Velcade), at clinically relevant concentrations, triggers de novo HSF2 mRNA transcription in different types of cancers via HSF1 activation. Similar results were obtained with next-generation proteasome inhibitors ixazomib and carfilzomib, indicating that induction of HSF2 expression is a general response to proteasome dysfunction. HSF2-promoter analysis, electrophoretic mobility shift assays, and chromatin immunoprecipitation studies unexpectedly revealed that HSF1 is recruited to a heat shock element located at 1.397 bp upstream from the transcription start site in the HSF2-promoter. More importantly, we found that HSF1 is critical for HSF2 gene transcription during proteasome dysfunction, representing an interesting example of transcription factor involved in controlling the expression of members of the same family. Moreover, bortezomib-induced HSF2 was found to localize in the nucleus, interact with HSF1, and participate in bortezomib-mediated control of cancer cell migration. The results shed light on HSF2-expression regulation, revealing a novel level of HSF1/HSF2 interplay that may lead to advances in pharmacological modulation of these fundamental transcription factors.
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Affiliation(s)
- Silvia Santopolo
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy
| | - Anna Riccio
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy
| | - Antonio Rossi
- Institute of Translational Pharmacology, CNR, Rome, Italy
| | - M Gabriella Santoro
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy.
- Institute of Translational Pharmacology, CNR, Rome, Italy.
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23
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Dong B, Jaeger AM, Hughes PF, Loiselle DR, Hauck JS, Fu Y, Haystead TA, Huang J, Thiele DJ. Targeting therapy-resistant prostate cancer via a direct inhibitor of the human heat shock transcription factor 1. Sci Transl Med 2020; 12:eabb5647. [PMID: 33328331 PMCID: PMC10571035 DOI: 10.1126/scitranslmed.abb5647] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 09/24/2020] [Indexed: 01/05/2023]
Abstract
Heat shock factor 1 (HSF1) is a cellular stress-protective transcription factor exploited by a wide range of cancers to drive proliferation, survival, invasion, and metastasis. Nuclear HSF1 abundance is a prognostic indicator for cancer severity, therapy resistance, and shortened patient survival. The HSF1 gene was amplified, and nuclear HSF1 abundance was markedly increased in prostate cancers and particularly in neuroendocrine prostate cancer (NEPC), for which there are no available treatment options. Despite genetic validation of HSF1 as a therapeutic target in a range of cancers, a direct and selective small-molecule HSF1 inhibitor has not been validated or developed for use in the clinic. We described the identification of a direct HSF1 inhibitor, Direct Targeted HSF1 InhiBitor (DTHIB), which physically engages HSF1 and selectively stimulates degradation of nuclear HSF1. DTHIB robustly inhibited the HSF1 cancer gene signature and prostate cancer cell proliferation. In addition, it potently attenuated tumor progression in four therapy-resistant prostate cancer animal models, including an NEPC model, where it caused profound tumor regression. This study reports the identification and validation of a direct HSF1 inhibitor and provides a path for the development of a small-molecule HSF1-targeted therapy for prostate cancers and other therapy-resistant cancers.
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Affiliation(s)
- Bushu Dong
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, USA
| | - Alex M Jaeger
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Philip F Hughes
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - David R Loiselle
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - J Spencer Hauck
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Yao Fu
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Timothy A Haystead
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Jiaoti Huang
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Dennis J Thiele
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, USA.
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
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24
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Burchfiel ET, Vihervaara A, Guertin MJ, Gomez-Pastor R, Thiele DJ. Comparative interactomes of HSF1 in stress and disease reveal a role for CTCF in HSF1-mediated gene regulation. J Biol Chem 2020; 296:100097. [PMID: 33208463 PMCID: PMC7948500 DOI: 10.1074/jbc.ra120.015452] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/10/2020] [Accepted: 11/18/2020] [Indexed: 01/09/2023] Open
Abstract
Heat shock transcription factor 1 (HSF1) orchestrates cellular stress protection by activating or repressing gene transcription in response to protein misfolding, oncogenic cell proliferation, and other environmental stresses. HSF1 is tightly regulated via intramolecular repressive interactions, post-translational modifications, and protein-protein interactions. How these HSF1 regulatory protein interactions are altered in response to acute and chronic stress is largely unknown. To elucidate the profile of HSF1 protein interactions under normal growth and chronic and acutely stressful conditions, quantitative proteomics studies identified interacting proteins in the response to heat shock or in the presence of a poly-glutamine aggregation protein cell-based model of Huntington's disease. These studies identified distinct protein interaction partners of HSF1 as well as changes in the magnitude of shared interactions as a function of each stressful condition. Several novel HSF1-interacting proteins were identified that encompass a wide variety of cellular functions, including roles in DNA repair, mRNA processing, and regulation of RNA polymerase II. One HSF1 partner, CTCF, interacted with HSF1 in a stress-inducible manner and functions in repression of specific HSF1 target genes. Understanding how HSF1 regulates gene repression is a crucial question, given the dysregulation of HSF1 target genes in both cancer and neurodegeneration. These studies expand our understanding of HSF1-mediated gene repression and provide key insights into HSF1 regulation via protein-protein interactions.
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Affiliation(s)
- Eileen T Burchfiel
- Department of Biochemistry, Duke University School of Medicine, Durham, North Carolina, USA; Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Anniina Vihervaara
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA
| | - Michael J Guertin
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia, USA
| | - Rocio Gomez-Pastor
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Dennis J Thiele
- Department of Biochemistry, Duke University School of Medicine, Durham, North Carolina, USA; Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, North Carolina, USA; Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, North Carolina, USA.
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25
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Zhang F, Zhao W, Zhou J, Wang W, Luo J, Feng Y, Wu J, Li M, Wang K, Niu J, Miao Y. Heat shock transcription factor 2 reduces the secretion of IL-1β by inhibiting NLRP3 inflammasome activation in ulcerative colitis. Gene 2020; 768:145299. [PMID: 33181254 DOI: 10.1016/j.gene.2020.145299] [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: 05/09/2020] [Revised: 09/25/2020] [Accepted: 11/04/2020] [Indexed: 10/23/2022]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory disease with unknown aetiology. As a pro-inflammatory cytokine, interleukin-1β (IL-1β) plays a critical, damaging role in UC. Heat shock proteins (HSPs) are important anti-inflammatory factors that maintain intestinal epithelial cells (IECs) homeostasis. Heat shock transcription factor 2 (HSF2) is an important regulator of HSPs. In our previous research, we found that HSF2 is highly expressed in UC, is negatively related to colon inflammation of mice, and inhibits the expression of IL-1β, but the specific mechanism is still unclear. As a product of the NLRP3 inflammasome, the expression of IL-1β is closely related to NLRP3 inflammasome activation. Therefore, we hypothesised that HSF2 affects the secretion of IL-1β by regulating activation of the NLRP3 inflammasome. In this study, hsf-/- DSS model mice showed highest levels of expression of the NLRP3 inflammasome and the secretion of IL-1β. In Caco-2 cells, the levels of expression of the NLRP3 inflammasome and the secretion of IL-1β were inhibited by overexpression of HSF2, and inhibited HSF2 increased activation of the NLRP3 inflammasome and the secretion of IL-1β. These findings indicated that HSF2 might be an important target for inflammatory modulation in UC.
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Affiliation(s)
- Fengrui Zhang
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming 650032, China
| | - Wei Zhao
- Kunming Medical University, Kunming 650032, China
| | - Jiao Zhou
- Kunming Medical University, Kunming 650032, China
| | - Wen Wang
- Kunming Medical University, Kunming 650032, China
| | - Juan Luo
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming 650032, China
| | - Yuran Feng
- Department of Ultrasound, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Jing Wu
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming 650032, China
| | - Maojuan Li
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming 650032, China
| | - Kunhua Wang
- Department of General Surgery, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming 650032, China
| | - Junkun Niu
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming 650032, China.
| | - Yinglei Miao
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming 650032, China.
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26
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Masser AE, Ciccarelli M, Andréasson C. Hsf1 on a leash - controlling the heat shock response by chaperone titration. Exp Cell Res 2020; 396:112246. [PMID: 32861670 DOI: 10.1016/j.yexcr.2020.112246] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/14/2020] [Accepted: 08/22/2020] [Indexed: 01/06/2023]
Abstract
Heat shock factor 1 (Hsf1) is an ancient transcription factor that monitors protein homeostasis (proteostasis) and counteracts disturbances by triggering a transcriptional programme known as the heat shock response (HSR). The HSR is transiently activated and upregulates the expression of core proteostasis genes, including chaperones. Dysregulation of Hsf1 and its target genes are associated with disease; cancer cells rely on a constitutively active Hsf1 to promote rapid growth and malignancy, whereas Hsf1 hypoactivation in neurodegenerative disorders results in formation of toxic aggregates. These central but opposing roles highlight the importance of understanding the underlying molecular mechanisms that control Hsf1 activity. According to current understanding, Hsf1 is maintained latent by chaperone interactions but proteostasis perturbations titrate chaperone availability as a result of chaperone sequestration by misfolded proteins. Liberated and activated Hsf1 triggers a negative feedback loop by inducing the expression of key chaperones. Until recently, Hsp90 has been highlighted as the central negative regulator of Hsf1 activity. In this review, we focus on recent advances regarding how the Hsp70 chaperone controls Hsf1 activity and in addition summarise several additional layers of activity control.
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Affiliation(s)
- Anna E Masser
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, S-106 91, Stockholm, Sweden
| | - Michela Ciccarelli
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, S-106 91, Stockholm, Sweden
| | - Claes Andréasson
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, S-106 91, Stockholm, Sweden.
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27
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Pincus D. Regulation of Hsf1 and the Heat Shock Response. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1243:41-50. [PMID: 32297210 DOI: 10.1007/978-3-030-40204-4_3] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The heat shock response (HSR) is characterized by the induction of molecular chaperones following a sudden increase in temperature. In eukaryotes, the HSR comprises the set of genes controlled by the transcription factor Hsf1. The HSR is induced by defects in co-translational protein folding, ribosome biogenesis, organellar targeting of nascent proteins, and protein degradation by the ubiquitin proteasome system. Upon heat shock, these processes may be endogenous sources of polypeptide ligands that activate the HSR. Mechanistically, these ligands are thought to titrate the chaperone Hsp70 away from Hsf1, releasing Hsf1 to induce the full arsenal of cellular chaperones to restore protein homeostasis. In metazoans, this cell-autonomous feedback loop is modulated by the microenvironment and neuronal cues to enable tissue-level and organism-wide coordination.
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Affiliation(s)
- David Pincus
- Department of Molecular Genetics and Cell Biology, Center for Physics of Evolving Systems, University of Chicago, Chicago, IL, USA.
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28
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Prince TL, Lang BJ, Guerrero-Gimenez ME, Fernandez-Muñoz JM, Ackerman A, Calderwood SK. HSF1: Primary Factor in Molecular Chaperone Expression and a Major Contributor to Cancer Morbidity. Cells 2020; 9:E1046. [PMID: 32331382 PMCID: PMC7226471 DOI: 10.3390/cells9041046] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/17/2020] [Accepted: 04/19/2020] [Indexed: 02/07/2023] Open
Abstract
Heat shock factor 1 (HSF1) is the primary component for initiation of the powerful heat shock response (HSR) in eukaryotes. The HSR is an evolutionarily conserved mechanism for responding to proteotoxic stress and involves the rapid expression of heat shock protein (HSP) molecular chaperones that promote cell viability by facilitating proteostasis. HSF1 activity is amplified in many tumor contexts in a manner that resembles a chronic state of stress, characterized by high levels of HSP gene expression as well as HSF1-mediated non-HSP gene regulation. HSF1 and its gene targets are essential for tumorigenesis across several experimental tumor models, and facilitate metastatic and resistant properties within cancer cells. Recent studies have suggested the significant potential of HSF1 as a therapeutic target and have motivated research efforts to understand the mechanisms of HSF1 regulation and develop methods for pharmacological intervention. We review what is currently known regarding the contribution of HSF1 activity to cancer pathology, its regulation and expression across human cancers, and strategies to target HSF1 for cancer therapy.
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Affiliation(s)
- Thomas L. Prince
- Department of Molecular Functional Genomics, Geisinger Clinic, Danville, PA 17821, USA
| | - Benjamin J. Lang
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
| | - Martin E. Guerrero-Gimenez
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Buenos Aires B1657, Argentina
| | - Juan Manuel Fernandez-Muñoz
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Buenos Aires B1657, Argentina
| | - Andrew Ackerman
- Department of Molecular Functional Genomics, Geisinger Clinic, Danville, PA 17821, USA
| | - Stuart K. Calderwood
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
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29
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Duchateau A, de Thonel A, El Fatimy R, Dubreuil V, Mezger V. The "HSF connection": Pleiotropic regulation and activities of Heat Shock Factors shape pathophysiological brain development. Neurosci Lett 2020; 725:134895. [PMID: 32147500 DOI: 10.1016/j.neulet.2020.134895] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 02/29/2020] [Accepted: 03/04/2020] [Indexed: 12/21/2022]
Abstract
The Heat Shock Factors (HSFs) have been historically identified as a family of transcription factors that are activated and work in a stress-responsive manner, after exposure to a large variety of stimuli. However, they are also critical in normal conditions, in a life long manner, in a number of physiological processes that encompass gametogenesis, embryonic development and the integrity of adult organs and organisms. The importance of such roles is emphasized by the devastating impact of their deregulation on health, ranging from reproductive failure, neurodevelopmental disorders, cancer, and aging pathologies, including neurodegenerative disorders. Here, we provide an overview of the delicate choreography of the regulation of HSFs during neurodevelopment, at prenatal and postnatal stages. The regulation of HSFs acts at multiple layers and steps, and comprises the control of (i) HSF mRNA and protein levels, (ii) HSF activity in terms of DNA-binding and transcription, (iii) HSF homo- and hetero-oligomerization capacities, and (iv) HSF combinatory set of post-translational modifications. We also describe how these regulatory mechanisms operate in the normal developing brain and how their perturbation impact neurodevelopment under prenatal or perinatal stress conditions. In addition, we put into perspective the possible role of HSFs in the evolution of the vertebrate brains and the importance of the HSF pathway in a large variety of neurodevelopmental disorders.
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Affiliation(s)
- Agathe Duchateau
- Université de Paris, Epigenetics and Cell Fate, CNRS, F-75013, Paris, France; Département Hospitalo-Universitaire DHU PROTECT, Paris, France; ED 562 BioSPC, Université de Paris, F-75205, Paris Cedex 13, France
| | - Aurélie de Thonel
- Université de Paris, Epigenetics and Cell Fate, CNRS, F-75013, Paris, France; Département Hospitalo-Universitaire DHU PROTECT, Paris, France
| | - Rachid El Fatimy
- Université de Paris, Epigenetics and Cell Fate, CNRS, F-75013, Paris, France; Département Hospitalo-Universitaire DHU PROTECT, Paris, France
| | - Véronique Dubreuil
- Université de Paris, Epigenetics and Cell Fate, CNRS, F-75013, Paris, France; Département Hospitalo-Universitaire DHU PROTECT, Paris, France
| | - Valérie Mezger
- Université de Paris, Epigenetics and Cell Fate, CNRS, F-75013, Paris, France; Département Hospitalo-Universitaire DHU PROTECT, Paris, France.
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Rai KK, Rai N, Aamir M, Tripathi D, Rai SP. Interactive role of salicylic acid and nitric oxide on transcriptional reprogramming for high temperature tolerance in lablab purpureus L.: Structural and functional insights using computational approaches. J Biotechnol 2020; 309:113-130. [PMID: 31935417 DOI: 10.1016/j.jbiotec.2020.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/17/2019] [Accepted: 01/03/2020] [Indexed: 02/07/2023]
Abstract
Salicylic acid (SA) and nitric oxide (NO) are considered as putative plant growth regulators that are involved in the regulation of an array of plant's growth and developmental functions under environmental fluctuations when applied at lower concentrations. The possible involvement of NO in SA induced attenuation of high temperature (HT) induced oxidative stress in plants is however, still vague and need to be explored. Therefore, the present study aimed to investigates the biochemical and physiological changes induced by foliar spray of SA and NO combinations to ameliorate HT induced oxidative stress in Lablab purpureus L. Foliar application of combined SA and NO significantly improved relative water content (27.8 %), photosynthetic pigment content (67.2 %), membrane stability (45 %), proline content (1.0 %), expression of enzymatic antioxidants (7.1-18 %) along with pod yield (1.0 %). Heat Shock Factors (HSFs) play crucial roles in plants abiotic stress tolerance, however there structural and functional classifications in L. purpureus L. is still unknown. So, In-silico approach was also used for functional characterization and homology modelling of HSFs in L. purpureus. The experimental findings depicted that combine effect of SA and NO enhances tolerance in HT stressed L. purpureus L. plants by regulating physiological functions, antioxidants, expression and regulation of stress-responsive genes via transcriptional regulation of heat shock factor.
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Affiliation(s)
- Krishna Kumar Rai
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University (BHU), Varanasi, 221005 Uttar Pradesh, India; Indian Institute of Vegetable Research, Post Box-01, P.O.-Jakhini (Shahanshahpur), Varanasi, 221305, Uttar Pradesh, India
| | - Nagendra Rai
- Indian Institute of Vegetable Research, Post Box-01, P.O.-Jakhini (Shahanshahpur), Varanasi, 221305, Uttar Pradesh, India
| | - Mohd Aamir
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University (BHU), Varanasi, 221005 Uttar Pradesh, India
| | - Deepika Tripathi
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University (BHU), Varanasi, 221005 Uttar Pradesh, India
| | - Shashi Pandey Rai
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University (BHU), Varanasi, 221005 Uttar Pradesh, India.
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31
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Zhang F, Wang W, Niu J, Yang G, Luo J, Lan D, Wu J, Li M, Sun Y, Wang K, Miao Y. Heat-shock transcription factor 2 promotes sodium butyrate-induced autophagy by inhibiting mTOR in ulcerative colitis. Exp Cell Res 2020; 388:111820. [PMID: 31923427 DOI: 10.1016/j.yexcr.2020.111820] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 12/24/2019] [Accepted: 01/06/2020] [Indexed: 12/13/2022]
Abstract
Butyrate-induced autophagy and anti-inflammatory effects of IECs plays an important role in UC. HSP has been proved to be associated with autophagy. HSF2, as an important regulator of HSP, has been determined to be highly expressed in UC. This study was designed to elucidate the relationship between HSF2, butyrate and epithelial autophagy and the potential mechanism of HSF2-related autophagy in UC. The autophagy levels and HSF2 expression in intestinal mucosa were increased in UC patients compared to controls. In DSS colitis models, hsf2-/- mice exhibited more severe intestinal inflammation and lower autophagy levels than wild-type mice. HSF2 expression could be induced by sodium butyrate and LPS as a dose-response relationship in HT-29 cells, epigenetically via increasing histone acetylation levels at the promoter region by sodium butyrate. Autophagy induced by sodium butyrate was promoted by overexpression HSF2 in HT-29 cells. Moreover, overexpression HSF2 decreased the expression and phosphorylation levels of PI3K, Akt and mTOR induced by sodium butyrate. HSF2 might induced by sodium butyrate and inflammation and played protective roles in UC by enhancing autophagy of IECs. This indicated that HSF2 may be a critical target for autophagy modulation and a new potential therapeutic target in UC.
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Affiliation(s)
- Fengrui Zhang
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Wen Wang
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Junkun Niu
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Gang Yang
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Juan Luo
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Danfeng Lan
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Jing Wu
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Maojuan Li
- Department of General Surgery, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Yang Sun
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Kunhua Wang
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
| | - Yinglei Miao
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Diseases, Kunming, 650032, China.
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Alasady MJ, Mendillo ML. The Multifaceted Role of HSF1 in Tumorigenesis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1243:69-85. [PMID: 32297212 DOI: 10.1007/978-3-030-40204-4_5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Heat Shock Factor 1 (HSF1), the master transcriptional regulator of the heat shock response (HSR), was first cloned more than 30 years ago. Most early research interrogating the role that HSF1 plays in biology focused on its cytoprotective functions, as a factor that promotes the survival of organisms by protecting against the proteotoxicity associated with neurodegeneration and other pathological conditions. However, recent studies have revealed a deleterious role of HSF1, as a factor that is co-opted by cancer cells to promote their own survival to the detriment of the organism. In cancer, HSF1 operates in a multifaceted manner to promote oncogenic transformation, proliferation, metastatic dissemination, and anti-cancer drug resistance. Here we review our current understanding of HSF1 activation and function in malignant progression and discuss the potential for HSF1 inhibition as a novel anticancer strategy. Collectively, this ever-growing body of work points to a prominent role of HSF1 in nearly every aspect of carcinogenesis.
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Affiliation(s)
- Milad J Alasady
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Marc L Mendillo
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. .,Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. .,Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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33
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Saju JM, Hossain MS, Liew WC, Pradhan A, Thevasagayam NM, Tan LSE, Anand A, Olsson PE, Orbán L. Heat Shock Factor 5 Is Essential for Spermatogenesis in Zebrafish. Cell Rep 2019; 25:3252-3261.e4. [PMID: 30566854 DOI: 10.1016/j.celrep.2018.11.090] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 08/24/2018] [Accepted: 11/26/2018] [Indexed: 01/09/2023] Open
Abstract
Heat shock factors (Hsfs) are transcription factors that regulate responses to heat shock and other environmental stimuli. Four heat shock factors (Hsf1-4) have been characterized from vertebrates to date. In addition to stress response, they also play important roles in development and gametogenesis. Here, we study the fifth member of heat shock factor family, Hsf5, using zebrafish as a model organism. Mutant hsf5-/- males, generated by CRISPR/Cas9 technique, were infertile with drastically reduced sperm count, increased sperm head size, and abnormal tail architecture, whereas females remained fertile. We show that Hsf5 is required for progression through meiotic prophase 1 during spermatogenesis as suggested by the accumulation of cells in the leptotene and zygotene-pachytene stages and increased apoptosis in post-meiotic cells. hsf5-/- mutants show gonadal misregulation of a substantial number of genes with roles in cell cycle, apoptosis, protein modifications, and signal transduction, indicating an important role of Hsf5 in early stages of spermatogenesis.
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Affiliation(s)
- Jolly M Saju
- Reproductive Genomics Group, Temasek Life Sciences Laboratory, Singapore, Singapore
| | - Mohammad Sorowar Hossain
- Reproductive Genomics Group, Temasek Life Sciences Laboratory, Singapore, Singapore; Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Woei Chang Liew
- Reproductive Genomics Group, Temasek Life Sciences Laboratory, Singapore, Singapore
| | - Ajay Pradhan
- Biology, The Life Science Center, School of Science and Technology, Örebro University, Örebro, Sweden
| | | | - Lydia Shun En Tan
- Reproductive Genomics Group, Temasek Life Sciences Laboratory, Singapore, Singapore
| | - Amit Anand
- Bioimaging and Biocomputing, Temasek Life Sciences Laboratory, Singapore, Singapore.
| | - Per-Erik Olsson
- Biology, The Life Science Center, School of Science and Technology, Örebro University, Örebro, Sweden.
| | - László Orbán
- Reproductive Genomics Group, Temasek Life Sciences Laboratory, Singapore, Singapore; Frontline Fish Genomics Research Group, Department of Animal Sciences, Georgikon Faculty, University of Pannonia, Keszthely, Hungary; Centre for Comparative Genomics, Murdoch University, Murdoch, Australia.
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Structural analysis of missense mutations occurring in the DNA-binding domain of HSF4 associated with congenital cataracts. JOURNAL OF STRUCTURAL BIOLOGY-X 2019; 4:100015. [PMID: 32647819 PMCID: PMC7337047 DOI: 10.1016/j.yjsbx.2019.100015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 12/31/2022]
Abstract
High-resolution structures of wild-type and K23N mutant DBD in HSF4 were determined. Cataract-related mutations in HSF4 were structurally analyzed through MD simulation. Mutations Q61R, K64E, R73H, R116H and R119C likely perturb DNA-binding activity. Mutations K23N, P60H and L114P probably affect trimer formation or folding dynamics. Mutations A19D, H35Y and I86V may be false positives leading to trivial impacts.
Congenital cataract (CC) is the major cause of childish blindness, and nearly 50% of CCs are hereditary disorders. HSF4, a member of the heat shock transcription factor family, acts as a key regulator of cell growth and differentiation during the development of sensory organs. Missense mutations in the HSF4-encoding gene have been reported to cause CC formation; in particular, those occurring within the DNA-binding domain (DBD) are usually autosomal dominant mutations. To address how the identified mutations lead to HSF4 malfunction by placing adverse impacts on protein structure and DNA-binding specificity and affinity, we determined two high-resolution structures of the wild-type DBD and the K23N mutant of human HSF4, built DNA-binding models, conducted in silico mutations and molecular dynamics simulations. Our analysis suggests four possible structural mechanisms underlining the missense mutations in HSF4-DBD and cataractogenesis: (i), disruption of HSE recognition; (ii), perturbation of protein-DNA interactions; (iii), alteration of protein folding; (iv), other impacts, e.g. inhibition of protein oligomerization.
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35
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Dong B, Jaeger AM, Thiele DJ. Inhibiting Heat Shock Factor 1 in Cancer: A Unique Therapeutic Opportunity. Trends Pharmacol Sci 2019; 40:986-1005. [PMID: 31727393 DOI: 10.1016/j.tips.2019.10.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 12/31/2022]
Abstract
The ability of cancer cells to cope with stressful conditions is critical for their survival, proliferation, and metastasis. The heat shock transcription factor 1 (HSF1) protects cells from stresses such as chemicals, radiation, and temperature. These properties of HSF1 are exploited by a broad spectrum of cancers, which exhibit high levels of nuclear, active HSF1. Functions for HSF1 in malignancy extend well beyond its central role in protein quality control. While HSF1 has been validated as a powerful target in cancers by genetic knockdown studies, HSF1 inhibitors reported to date have lacked sufficient specificity and potency for clinical evaluation. We review the roles of HSF1 in cancer, its potential as a prognostic indicator for cancer treatment, evaluate current HSF1 inhibitors and provide guidelines for the identification of selective HSF1 inhibitors as chemical probes and for clinical development.
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Affiliation(s)
- Bushu Dong
- Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA
| | - Alex M Jaeger
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Dennis J Thiele
- Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA; Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC, USA; Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA.
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36
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Himanen SV, Sistonen L. New insights into transcriptional reprogramming during cellular stress. J Cell Sci 2019; 132:132/21/jcs238402. [PMID: 31676663 DOI: 10.1242/jcs.238402] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cellular stress triggers reprogramming of transcription, which is required for the maintenance of homeostasis under adverse growth conditions. Stress-induced changes in transcription include induction of cyto-protective genes and repression of genes related to the regulation of the cell cycle, transcription and metabolism. Induction of transcription is mediated through the activation of stress-responsive transcription factors that facilitate the release of stalled RNA polymerase II and so allow for transcriptional elongation. Repression of transcription, in turn, involves components that retain RNA polymerase II in a paused state on gene promoters. Moreover, transcription during stress is regulated by a massive activation of enhancers and complex changes in chromatin organization. In this Review, we highlight the latest research regarding the molecular mechanisms of transcriptional reprogramming upon stress in the context of specific proteotoxic stress responses, including the heat-shock response, unfolded protein response, oxidative stress response and hypoxia response.
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Affiliation(s)
- Samu V Himanen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland.,Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland
| | - Lea Sistonen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland .,Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520 Turku, Finland
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37
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Yang T, Ren C, Lu C, Qiao P, Han X, Wang L, Wang D, Lv S, Sun Y, Yu Z. Phosphorylation of HSF1 by PIM2 Induces PD-L1 Expression and Promotes Tumor Growth in Breast Cancer. Cancer Res 2019; 79:5233-5244. [PMID: 31409638 DOI: 10.1158/0008-5472.can-19-0063] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 05/17/2019] [Accepted: 08/07/2019] [Indexed: 11/16/2022]
Abstract
Heat shock transcription factor 1 (HSF1) is the master regulator of the proteotoxic stress response, which plays a key role in breast cancer tumorigenesis. However, the mechanisms underlying regulation of HSF1 protein stability are still unclear. Here, we show that HSF1 protein stability is regulated by PIM2-mediated phosphorylation of HSF1 at Thr120, which disrupts the binding of HSF1 to the E3 ubiquitin ligase FBXW7. In addition, HSF1 Thr120 phosphorylation promoted proteostasis and carboplatin-induced autophagy. Interestingly, HSF1 Thr120 phosphorylation induced HSF1 binding to the PD-L1 promoter and enhanced PD-L1 expression. Furthermore, HSF1 Thr120 phosphorylation promoted breast cancer tumorigenesis in vitro and in vivo. PIM2, pThr120-HSF1, and PD-L1 expression positively correlated with each other in breast cancer tissues. Collectively, these findings identify PIM2-mediated HSF1 phosphorylation at Thr120 as an essential mechanism that regulates breast tumor growth and potential therapeutic target for breast cancer. SIGNIFICANCE: These findings identify heat shock transcription factor 1 as a new substrate for PIM2 kinase and establish its role in breast tumor progression.
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Affiliation(s)
- Tingting Yang
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Chune Ren
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Chao Lu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Pengyun Qiao
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Xue Han
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Li Wang
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Dan Wang
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Shijun Lv
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Yonghong Sun
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China
| | - Zhenhai Yu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, P.R. China.
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38
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Functional diversification of tomato HsfA1 factors is based on DNA binding domain properties. Gene 2019; 714:143985. [PMID: 31330236 DOI: 10.1016/j.gene.2019.143985] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 07/13/2019] [Accepted: 07/15/2019] [Indexed: 12/14/2022]
Abstract
In all eukaryotes, the response to heat stress (HS) is dependent on the activity of HS transcription factors (Hsfs). Plants contain a large number of Hsfs, however, only members of the HsfA1 subfamily are considered as master regulators of stress response and thermotolerance. In Solanum lycopersicum, among the four HsfA1 members, only HsfA1a has been proposed to possess a master regulator function. We performed a comparative analysis of HsfA1a, HsfA1b, HsfA1c and HsfA1e at different levels of regulation and function. HsfA1a is constitutively expressed under control and stress conditions, while the other members are induced in specific tissues and stages of HS response. Despite that all members are localized in the nucleus when expressed in protoplasts, only HsfA1a shows a wide range of basal activity on several HS-induced genes. In contrast, HsfA1b, HsfA1c, and HsfA1e show only high activity for specific subsets of genes. Domain swapping mutants between HsfA1a and HsfA1c revealed that the variation in that transcriptional transactivation activity is due to differences in the DNA binding domain (DBD). Specifically, we identified a conserved arginine (R107) residue in the turn of β3 and β4 sheet in the C-terminus of the DBD of HsfA1a that is highly conserved in plant HsfA1 proteins, but is replaced by leucine and cysteine in tomato HsfA1c and HsfA1e, respectively. Although not directly involved in DNA interaction, R107 contributes to DNA binding and consequently the activity of HsfA1a. Thus, we demonstrate that this variation in DBD in part explains the functional diversification of tomato HsfA1 members.
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39
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Jaiswal L, De S, Singh RK, Baithalu RK. Molecular characterization and protein structure prediction of heat shock transcriptional factors in goat (Capra hircus) and sheep (Ovis aries). Anim Biotechnol 2019; 31:432-439. [PMID: 31164037 DOI: 10.1080/10495398.2019.1615497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Latika Jaiswal
- Animal Genomics Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Sachinandan De
- Animal Genomics Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Ravi Kant Singh
- Amity Institute of Biotechnology, Amity University, Raipur, India
| | - Rubina Kumari Baithalu
- Animal Genomics Lab, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
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40
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Liu B, Hu J, Zhang J. Evolutionary Divergence of Duplicated Hsf Genes in Populus. Cells 2019; 8:cells8050438. [PMID: 31083365 PMCID: PMC6563006 DOI: 10.3390/cells8050438] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/04/2019] [Accepted: 05/07/2019] [Indexed: 01/07/2023] Open
Abstract
Heat shock transcription factors (Hsfs), which function as the activator of heat shock proteins (Hsps), play multiple roles in response to environmental stress and the development of plants. The Hsf family had experienced gene expansion via whole-genome duplication from a single cell algae to higher plants. However, how the Hsf gene family went through evolutionary divergence after genome duplication is unknown. As a model wood species, Populus trichocarpa is widely distributed in North America with various ecological and climatic environments. In this study, we used P. trichocarpa as materials and identified the expression divergence of the PtHsf gene family in developmental processes, such as dormant bud formation and opening, catkins development, and in response to environments. Through the co-expression network, we further discovered the divergent co-expressed genes that related to the functional divergence of PtHsfs. Then, we studied the alternative splicing events, single nucleotide polymorphism distribution and tertiary structures of members of the PtHsf gene family. In addition to expression divergence, we uncovered the evolutionary divergence in the protein level which may be important to new function formations and for survival in changing environments. This study comprehensively analyzed the evolutionary divergence of a member of the PtHsf gene family after genome duplication, paving the way for further gene function analysis and genetic engineering.
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Affiliation(s)
- Bobin Liu
- College of Forestry, Fujian Colleges and Universities Engineering Research Institute of Conservation & Utilization of Natural Bioresources, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Jianjun Hu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China.
| | - Jin Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China.
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
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41
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Veri AO, Robbins N, Cowen LE. Regulation of the heat shock transcription factor Hsf1 in fungi: implications for temperature-dependent virulence traits. FEMS Yeast Res 2019; 18:4975774. [PMID: 29788061 DOI: 10.1093/femsyr/foy041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 04/16/2018] [Indexed: 12/27/2022] Open
Abstract
The impact of fungal pathogens on human health is devastating. For fungi and other pathogens, a key determinant of virulence is the capacity to thrive at host temperatures, with elevated temperature in the form of fever as a ubiquitous host response to defend against infection. A prominent feature of cells experiencing heat stress is the increased expression of heat shock proteins (Hsps) that play pivotal roles in the refolding of misfolded proteins in order to restore cellular homeostasis. Transcriptional activation of this heat shock response is orchestrated by the essential heat shock transcription factor, Hsf1. Although the influence of Hsf1 on cellular stress responses has been studied for decades, many aspects of its regulation and function remain largely enigmatic. In this review, we highlight our current understanding of how Hsf1 is regulated and activated in the model yeast Saccharomyces cerevisiae, and highlight exciting recent discoveries related to its diverse functions under both basal and stress conditions. Given that thermal adaption is a fundamental requirement for growth and virulence in fungal pathogens, we also compare and contrast Hsf1 activation and function in other fungal species with an emphasis on its role as a critical regulator of virulence traits.
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Affiliation(s)
- Amanda O Veri
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5G 1M1, Canada
| | - Nicole Robbins
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5G 1M1, Canada
| | - Leah E Cowen
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5G 1M1, Canada
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42
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Joutsen J, Sistonen L. Tailoring of Proteostasis Networks with Heat Shock Factors. Cold Spring Harb Perspect Biol 2019; 11:cshperspect.a034066. [PMID: 30420555 DOI: 10.1101/cshperspect.a034066] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Heat shock factors (HSFs) are the main transcriptional regulators of the heat shock response and indispensable for maintaining cellular proteostasis. HSFs mediate their protective functions through diverse genetic programs, which are composed of genes encoding molecular chaperones and other genes crucial for cell survival. The mechanisms that are used to tailor HSF-driven proteostasis networks are not yet completely understood, but they likely comprise from distinct combinations of both genetic and proteomic determinants. In this review, we highlight the versatile HSF-mediated cellular functions that extend from cellular stress responses to various physiological and pathological processes, and we underline the key advancements that have been achieved in the field of HSF research during the last decade.
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Affiliation(s)
- Jenny Joutsen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland.,Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Lea Sistonen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland.,Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland
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43
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Li G, Wang L, Wang Y, Li H, Liu Z, Wang H, Xu B, Guo X. Developmental characterization and environmental stress responses of Y-box binding protein 1 gene (AccYB-1) from Apis cerana cerana. Gene 2018; 674:37-48. [DOI: 10.1016/j.gene.2018.06.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/11/2018] [Accepted: 06/21/2018] [Indexed: 12/11/2022]
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44
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Tan J, MacRae TH. Stress tolerance in diapausing embryos of Artemia franciscana is dependent on heat shock factor 1 (Hsf1). PLoS One 2018; 13:e0200153. [PMID: 29979776 PMCID: PMC6034868 DOI: 10.1371/journal.pone.0200153] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 06/20/2018] [Indexed: 12/17/2022] Open
Abstract
Embryos of the crustacean, Artemia franciscana, may undergo oviparous development, forming encysted embryos (cysts) that are released from females and enter diapause, a state of suppressed metabolism and greatly enhanced stress tolerance. Diapause-destined embryos of A. franciscana synthesize three small heat shock proteins (sHsps), p26, ArHsp21 and ArHsp22, as well as artemin, a ferritin homologue, all lacking in embryos that develop directly into nauplii. Of these diapause-specific molecular chaperones, p26 and artemin are important contributors to the extraordinary stress tolerance of A. franciscana cysts, but how their synthesis is regulated is unknown. To address this issue, a cDNA for heat shock factor 1 (Hsf1), shown to encode a protein similar to Hsf1 from other organisms, was cloned from A. franciscana. Hsf1 was knocked down by RNA interference (RNAi) in nauplii and cysts of A. franciscana. Nauplii lacking Hsf1 died prematurely upon release from females, showing that this transcription factor is essential to the survival of nauplii. Diapause cysts with diminished amounts of Hsf1 were significantly less stress tolerant than cysts containing normal levels of Hsf1. Moreover, cysts deficient in Hsf1 possessed reduced amounts of p26, ArHsp21, ArHsp22 and artemin, revealing dependence on Hsf1 for expression of their genes and maximum stress tolerance. The results demonstrate an important role for Hsf1, likely in concert with other transcription factors, in the survival and growth of A. franciscana and in the developmentally regulated synthesis of proteins responsible for the stress tolerance of diapausing A. franciscana cysts.
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Affiliation(s)
- Jiabo Tan
- Department of Biology, Dalhousie University, Halifax, N. S., Canada
| | - Thomas H. MacRae
- Department of Biology, Dalhousie University, Halifax, N. S., Canada
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45
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Albihlal WS, Obomighie I, Blein T, Persad R, Chernukhin I, Crespi M, Bechtold U, Mullineaux PM. Arabidopsis HEAT SHOCK TRANSCRIPTION FACTORA1b regulates multiple developmental genes under benign and stress conditions. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:2847-2862. [PMID: 29697803 PMCID: PMC5961379 DOI: 10.1093/jxb/ery142] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 04/05/2018] [Indexed: 05/22/2023]
Abstract
In Arabidopsis thaliana, HEAT SHOCK TRANSCRIPTION FACTORA1b (HSFA1b) controls resistance to environmental stress and is a determinant of reproductive fitness by influencing seed yield. To understand how HSFA1b achieves this, we surveyed its genome-wide targets (ChIP-seq) and its impact on the transcriptome (RNA-seq) under non-stress (NS), heat stress (HS) in the wild type, and in HSFA1b-overexpressing plants under NS. A total of 952 differentially expressed HSFA1b-targeted genes were identified, of which at least 85 are development associated and were bound predominantly under NS. A further 1780 genes were differentially expressed but not bound by HSFA1b, of which 281 were classified as having development-associated functions. These genes are indirectly regulated through a hierarchical network of 27 transcription factors (TFs). Furthermore, we identified 480 natural antisense non-coding RNA (cisNAT) genes bound by HSFA1b, defining a further mode of indirect regulation. Finally, HSFA1b-targeted genomic features not only harboured heat shock elements, but also MADS box, LEAFY, and G-Box promoter motifs. This revealed that HSFA1b is one of eight TFs that target a common group of stress defence and developmental genes. We propose that HSFA1b transduces environmental cues to many stress tolerance and developmental genes to allow plants to adjust their growth and development continually in a varying environment.
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Affiliation(s)
- Waleed S Albihlal
- Department of Microbial & Cellular Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
| | - Irabonosi Obomighie
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex, UK
| | - Thomas Blein
- Institute of Plant Sciences-Paris-Saclay, Gif-sur-Yvette Cedex, France
| | - Ramona Persad
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex, UK
| | - Igor Chernukhin
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Martin Crespi
- Institute of Plant Sciences-Paris-Saclay, Gif-sur-Yvette Cedex, France
| | - Ulrike Bechtold
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex, UK
| | - Philip M Mullineaux
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex, UK
- Correspondence:
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46
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Ran X, Burchfiel ET, Dong B, Rettko NJ, Dunyak BM, Shao H, Thiele DJ, Gestwicki JE. Rational design and screening of peptide-based inhibitors of heat shock factor 1 (HSF1). Bioorg Med Chem 2018; 26:5299-5306. [PMID: 29661622 DOI: 10.1016/j.bmc.2018.04.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 03/31/2018] [Accepted: 04/06/2018] [Indexed: 01/09/2023]
Abstract
Heat shock factor 1 (HSF1) is a stress-responsive transcription factor that regulates expression of protein chaperones and cell survival factors. In cancer, HSF1 plays a unique role, hijacking the normal stress response to drive a cancer-specific transcriptional program. These observations suggest that HSF1 inhibitors could be promising therapeutics. However, HSF1 is activated through a complex mechanism, which involves release of a negative regulatory domain, leucine zipper 4 (LZ4), from a masked oligomerization domain (LZ1-3), and subsequent binding of the oligomer to heat shock elements (HSEs) in HSF1-responsive genes. Recent crystal structures have suggested that HSF1 oligomers are held together by extensive, buried contact surfaces, making it unclear whether there are any possible binding sites for inhibitors. Here, we have rationally designed a series of peptide-based molecules based on the LZ4 and LZ1-3 motifs. Using a plate-based, fluorescence polarization (FP) assay, we identified a minimal region of LZ4 that suppresses binding of HSF1 to the HSE. Using this information, we converted this peptide into a tracer and used it to understand how binding of LZ4 to LZ1-3 suppresses HSF1 activation. Together, these results suggest a previously unexplored avenue in the development of HSF1 inhibitors. Furthermore, the findings highlight how native interactions can inspire the design of inhibitors for even the most challenging protein-protein interactions (PPIs).
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Affiliation(s)
- Xu Ran
- Institute for Neurodegenerative Disease, University of California at San Francisco, San Francisco, CA 94143, United States
| | - Eileen T Burchfiel
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, United States
| | - Bushu Dong
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, United States
| | - Nicholas J Rettko
- Department of Pharmaceutical Chemistry, University of California at San Francisco, San Francisco, CA 94143, United States
| | - Bryan M Dunyak
- Institute for Neurodegenerative Disease, University of California at San Francisco, San Francisco, CA 94143, United States
| | - Hao Shao
- Institute for Neurodegenerative Disease, University of California at San Francisco, San Francisco, CA 94143, United States
| | - Dennis J Thiele
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, United States; Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, United States; Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, United States
| | - Jason E Gestwicki
- Institute for Neurodegenerative Disease, University of California at San Francisco, San Francisco, CA 94143, United States; Department of Pharmaceutical Chemistry, University of California at San Francisco, San Francisco, CA 94143, United States.
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47
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Deen AJ, Sihvola V, Härkönen J, Patinen T, Adinolfi S, Levonen AL. Regulation of stress signaling pathways by nitro-fatty acids. Nitric Oxide 2018; 78:S1089-8603(17)30323-3. [PMID: 29567143 DOI: 10.1016/j.niox.2018.03.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 03/09/2018] [Accepted: 03/16/2018] [Indexed: 12/31/2022]
Abstract
Electrophilic nitrated-fatty acids (NO2-FA, nitroalkenes) are formed during reactions of NO-derived oxidized species (•NO, •NO2) with either free or esterified polyunsaturated fatty acids. Due to their electrophilic character, they react with nucleophiles such as cysteine thiols in signaling proteins, thereby triggering downstream signaling cascades. Herein, we review two stress-signaling pathways activated by nitroalkenes, the KEAP1-NRF2 signaling pathway and the heat shock response (HSR) pathway. In addition, their biological and pharmacological relevance are discussed. Given that perturbations in both proteostasis and redox balance are common in many disease processes, dual activation of both pathways by nitroalkenes is a promising pharmacological approach for their treatment.
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Affiliation(s)
- Ashik Jawahar Deen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FI-70211, Finland
| | - Virve Sihvola
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FI-70211, Finland
| | - Jouni Härkönen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FI-70211, Finland
| | - Tommi Patinen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FI-70211, Finland
| | - Simone Adinolfi
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FI-70211, Finland
| | - Anna-Liisa Levonen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FI-70211, Finland.
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48
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MD simulation of high-resolution X-ray structures reveals post-translational modification dependent conformational changes in HSF-DNA interaction. Protein Cell 2018; 7:916-920. [PMID: 27882499 PMCID: PMC5205663 DOI: 10.1007/s13238-016-0331-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/30/2022] Open
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49
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The HSF1-PARP13-PARP1 complex facilitates DNA repair and promotes mammary tumorigenesis. Nat Commun 2017; 8:1638. [PMID: 29158484 PMCID: PMC5696371 DOI: 10.1038/s41467-017-01807-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 10/13/2017] [Indexed: 01/23/2023] Open
Abstract
Poly(ADP-ribose) polymerase 1 (PARP1) is involved in DNA repair, chromatin structure, and transcription. However, the mechanisms that regulate PARP1 distribution on DNA are poorly understood. Here, we show that heat shock transcription factor 1 (HSF1) recruits PARP1 through the scaffold protein PARP13. In response to DNA damage, activated and auto-poly-ADP-ribosylated PARP1 dissociates from HSF1–PARP13, and redistributes to DNA lesions and DNA damage-inducible gene loci. Histone deacetylase 1 maintains PARP1 in the ternary complex by inactivating PARP1 through deacetylation. Blocking ternary complex formation impairs redistribution of PARP1 during DNA damage, which reduces gene expression and DNA repair. Furthermore, ternary complex formation and PARP1 redistribution protect cells from DNA damage by promoting DNA repair, and support growth of BRCA1-null mammary tumors, which are sensitive to PARP inhibitors. Our findings identify HSF1 as a regulator of genome integrity and define this function as a guarding mechanism for a specific type of mammary tumorigenesis. PARP1 recruitment to DNA lesions is critical for DNA damage repair but how DNA damage induces PARP1 redistribution is largely unknown. Here, the authors provide evidence that PARP1 redistribution and DNA repair in tumor cells depend on the formation of a HSF1–PARP13–PARP1 complex.
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50
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Vilaboa N, Boré A, Martin-Saavedra F, Bayford M, Winfield N, Firth-Clark S, Kirton SB, Voellmy R. New inhibitor targeting human transcription factor HSF1: effects on the heat shock response and tumor cell survival. Nucleic Acids Res 2017; 45:5797-5817. [PMID: 28369544 PMCID: PMC5449623 DOI: 10.1093/nar/gkx194] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 03/13/2017] [Indexed: 12/20/2022] Open
Abstract
Comparative modeling of the DNA-binding domain of human HSF1 facilitated the prediction of possible binding pockets for small molecules and definition of corresponding pharmacophores. In silico screening of a large library of lead-like compounds identified a set of compounds that satisfied the pharmacophoric criteria, a selection of which compounds was purchased to populate a biased sublibrary. A discriminating cell-based screening assay identified compound 001, which was subjected to systematic analysis of structure–activity relationships, resulting in the development of compound 115 (IHSF115). IHSF115 bound to an isolated HSF1 DNA-binding domain fragment. The compound did not affect heat-induced oligomerization, nuclear localization and specific DNA binding but inhibited the transcriptional activity of human HSF1, interfering with the assembly of ATF1-containing transcription complexes. IHSF115 was employed to probe the human heat shock response at the transcriptome level. In contrast to earlier studies of differential regulation in HSF1-naïve and -depleted cells, our results suggest that a large majority of heat-induced genes is positively regulated by HSF1. That IHSF115 effectively countermanded repression in a significant fraction of heat-repressed genes suggests that repression of these genes is mediated by transcriptionally active HSF1. IHSF115 is cytotoxic for a variety of human cancer cell lines, multiple myeloma lines consistently exhibiting high sensitivity.
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Affiliation(s)
- Nuria Vilaboa
- Hospital Universitario La Paz-IdiPAZ, 28046 Madrid, Spain.,CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain
| | - Alba Boré
- Hospital Universitario La Paz-IdiPAZ, 28046 Madrid, Spain.,CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain
| | - Francisco Martin-Saavedra
- Hospital Universitario La Paz-IdiPAZ, 28046 Madrid, Spain.,CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain
| | - Melanie Bayford
- Domainex Ltd, Chesterford Research Park, Little Chesterford, Saffron Walden, Essex CB10 1XL, UK
| | - Natalie Winfield
- Domainex Ltd, Chesterford Research Park, Little Chesterford, Saffron Walden, Essex CB10 1XL, UK
| | - Stuart Firth-Clark
- Domainex Ltd, Chesterford Research Park, Little Chesterford, Saffron Walden, Essex CB10 1XL, UK
| | - Stewart B Kirton
- University of Hertfordshire, Hatfield, Hertfordshire, AL10 9AB, UK
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