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Kovács D, Biró JB, Ahmed S, Kovács M, Sigmond T, Hotzi B, Varga M, Vincze VV, Mohammad U, Vellai T, Barna J. Age-dependent heat shock hormesis to HSF-1 deficiency suggests a compensatory mechanism mediated by the unfolded protein response and innate immunity in young Caenorhabditis elegans. Aging Cell 2024; 23:e14246. [PMID: 38895933 PMCID: PMC11464127 DOI: 10.1111/acel.14246] [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: 08/01/2023] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024] Open
Abstract
The transcription factor HSF-1 (heat shock factor 1) acts as a master regulator of heat shock response in eukaryotic cells to maintain cellular proteostasis. The protein has a protective role in preventing cells from undergoing ageing, and neurodegeneration, and also mediates tumorigenesis. Thus, modulating HSF-1 activity in humans has a promising therapeutic potential for treating these pathologies. Loss of HSF-1 function is usually associated with impaired stress tolerance. Contrary to this conventional knowledge, we show here that inactivation of HSF-1 in the nematode Caenorhabditis elegans results in increased thermotolerance at young adult stages, whereas HSF-1 deficiency in animals passing early adult stages indeed leads to decreased thermotolerance, as compared to wild-type. Furthermore, a gene expression analysis supports that in young adults, distinct cellular stress response and immunity-related signaling pathways become induced upon HSF-1 deficiency. We also demonstrate that increased tolerance to proteotoxic stress in HSF-1-depleted young worms requires the activity of the unfolded protein response of the endoplasmic reticulum and the SKN-1/Nrf2-mediated oxidative stress response pathway, as well as an innate immunity-related pathway, suggesting a mutual compensatory interaction between HSF-1 and these conserved stress response systems. A similar compensatory molecular network is likely to also operate in higher animal taxa, raising the possibility of an unexpected outcome when HSF-1 activity is manipulated in humans.
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Affiliation(s)
- Dániel Kovács
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
| | | | - Saqib Ahmed
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
| | - Márton Kovács
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
| | - Tímea Sigmond
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
| | - Bernadette Hotzi
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
| | - Máté Varga
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
| | | | - Umar Mohammad
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
| | - Tibor Vellai
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
- HUN‐REN‐ELTE Genetics Research GroupEötvös Loránd UniversityBudapestHungary
| | - János Barna
- Department of GeneticsELTE Eötvös Loránd UniversityBudapestHungary
- HUN‐REN‐ELTE Genetics Research GroupEötvös Loránd UniversityBudapestHungary
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2
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Zhang X, Fan Y, Tan K. A bird's eye view of mitochondrial unfolded protein response in cancer: mechanisms, progression and further applications. Cell Death Dis 2024; 15:667. [PMID: 39261452 PMCID: PMC11390889 DOI: 10.1038/s41419-024-07049-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 09/01/2024] [Accepted: 09/02/2024] [Indexed: 09/13/2024]
Abstract
Mitochondria are essential organelles that play critical roles in energy metabolism, apoptosis and various cellular processes. Accumulating evidence suggests that mitochondria are also involved in cancer development and progression. The mitochondrial unfolded protein response (UPRmt) is a complex cellular process that is activated when the protein-folding capacity of the mitochondria is overwhelmed. The core machinery of UPRmt includes upstream regulatory factors, mitochondrial chaperones and proteases. These components work together to eliminate misfolded proteins, increase protein-folding capacity, and restore mitochondrial function. Recent studies have shown that UPRmt is dysregulated in various cancers and contributes to tumor initiation, growth, metastasis, and therapeutic resistance. Considering the pivotal role of the UPRmt in oncogenesis, numerous compounds and synthetic drugs targeting UPRmt-related components induce cancer cell death and suppress tumor growth. In this review, we comprehensively summarize recent studies on the molecular mechanisms of UPRmt activation in C. elegans and mammals and elucidate the conceptual framework, functional aspects, and implications of the UPRmt for cancer therapy. In summary, we paint a developmental landscape of the UPRmt in different types of cancer and offer valuable insights for the development of novel cancer treatment strategies by targeting the UPRmt.
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Affiliation(s)
- Xinyu Zhang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology; Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaborative Innovation Center for Eco-Environment, Hebei Province Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Yumei Fan
- Ministry of Education Key Laboratory of Molecular and Cellular Biology; Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaborative Innovation Center for Eco-Environment, Hebei Province Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Ke Tan
- Ministry of Education Key Laboratory of Molecular and Cellular Biology; Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaborative Innovation Center for Eco-Environment, Hebei Province Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China.
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3
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Xiao Y, Deng F, Luo Y, Wang T. Pharmaceutical inhibition of BCL6 ameliorates resistance to imatinib in chronic myeloid leukemia. Heliyon 2024; 10:e36640. [PMID: 39258188 PMCID: PMC11386027 DOI: 10.1016/j.heliyon.2024.e36640] [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: 10/25/2023] [Revised: 08/19/2024] [Accepted: 08/20/2024] [Indexed: 09/12/2024] Open
Abstract
The tyrosine kinase inhibitors (TKIs) have improved overall survival of CML (chronic myeloid leukemia) patients and allow them to experience normal life expectancy. However, relapse and drug resistance remain the main challenges in the clinical treatment of CML. The B-cell lymphoma 6 (BCL6) is essential to regulation of multiple function such as immune response and lymphomagenesis in lymph node germinal cells. Recent studies have shown that BCL6 is required for the maintenance of leukemia stem cells in CML, but the expression of Bcl-6 in response to Imatinib and the underlying mechanism are still unclear. Here, we found that BCL6 is expressed at high levels in primary CML bone marrow samples and CML TKI-resistance cell lines. CML cells with higher levels of BCL6 were generally sensitive to treatment with BCL6 inhibitors, BI-3812. Treatment of CML cells with BCL6 inhibitor and TKIs suggested enhanced anti-leukemia activity. In summary, our findings suggest BCL6 as a therapeutic target for the treatment of CML.
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Affiliation(s)
- Yingying Xiao
- Department of Hematology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Fang Deng
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yun Luo
- Department of Hematology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Teng Wang
- Department of Hematology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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4
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Dea A, Pincus D. The Heat Shock Response as a Condensate Cascade. J Mol Biol 2024; 436:168642. [PMID: 38848866 PMCID: PMC11214683 DOI: 10.1016/j.jmb.2024.168642] [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: 11/07/2023] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/09/2024]
Abstract
The heat shock response (HSR) is a gene regulatory program controlling expression of molecular chaperones implicated in aging, cancer, and neurodegenerative disease. Long presumed to be activated by toxic protein aggregates, recent work suggests a new functional paradigm for the HSR in yeast. Rather than toxic aggregates, adaptive biomolecular condensates comprised of orphan ribosomal proteins (oRP) and stress granule components have been shown to be physiological chaperone clients. By titrating away the chaperones Sis1 and Hsp70 from the transcription factor Hsf1, these condensates activate the HSR. Upon release from Hsp70, Hsf1 forms spatially distinct transcriptional condensates that drive high expression of HSR genes. In this manner, the negative feedback loop controlling HSR activity - in which Hsf1 induces Hsp70 expression and Hsp70 represses Hsf1 activity - is embedded in the biophysics of the system. By analogy to phosphorylation cascades that transmit information via the dynamic activity of kinases, we propose that the HSR is organized as a condensate cascade that transmits information via the localized activity of molecular chaperones.
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Affiliation(s)
- Annisa Dea
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL, United States
| | - David Pincus
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL, United States; Institute for Biophysical Dynamics, University of Chicago, Chicago, IL, United States; Center for Physics of Evolving Systems, University of Chicago, Chicago, IL, United States.
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5
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Viana PHL, Schvarcz CA, Danics LO, Besztercei B, Aloss K, Bokhari SMZ, Giunashvili N, Bócsi D, Koós Z, Benyó Z, Hamar P. Heat shock factor 1 inhibition enhances the effects of modulated electro hyperthermia in a triple negative breast cancer mouse model. Sci Rep 2024; 14:8241. [PMID: 38589452 PMCID: PMC11002009 DOI: 10.1038/s41598-024-57659-x] [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: 10/20/2023] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
Female breast cancer is the most diagnosed cancer worldwide. Triple negative breast cancer (TNBC) is the most aggressive type and there is no existing endocrine or targeted therapy. Modulated electro-hyperthermia (mEHT) is a non-invasive complementary cancer therapy using an electromagnetic field generated by amplitude modulated 13.56 MHz frequency that induces tumor cell destruction. However, we have demonstrated a strong induction of the heat shock response (HSR) by mEHT, which can result in thermotolerance. We hypothesized that inhibition of the heat shock factor 1 (HSF1) can synergize with mEHT and enhance tumor cell-killing. Thus, we either knocked down the HSF1 gene with a CRISPR/Cas9 lentiviral construct or inhibited HSF1 with a specific small molecule inhibitor: KRIBB11 in vivo. Wild type or HSF1-knockdown 4T1 TNBC cells were inoculated into the mammary gland's fat pad of BALB/c mice. Four mEHT treatments were performed every second day and the tumor growth was followed by ultrasound and caliper. KRIBB11 was administrated intraperitoneally at 50 mg/kg daily for 8 days. HSF1 and Hsp70 expression were assessed. HSF1 knockdown sensitized transduced cancer cells to mEHT and reduced tumor growth. HSF1 mRNA expression was significantly reduced in the KO group when compared to the empty vector group, and consequently mEHT-induced Hsp70 mRNA upregulation diminished in the KO group. Immunohistochemistry (IHC) confirmed the inhibition of Hsp70 upregulation in mEHT HSF1-KO group. Demonstrating the translational potential of HSF1 inhibition, combined therapy of mEHT with KRIBB11 significantly reduced tumor mass compared to either monotherapy. Inhibition of Hsp70 upregulation by mEHT was also supported by qPCR and IHC. In conclusion, we suggest that mEHT-therapy combined with HSF1 inhibition can be a possible new strategy of TNBC treatment with great translational potential.
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Affiliation(s)
- Pedro H L Viana
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Csaba A Schvarcz
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
- HUN-REN-SU Cerebrovascular and Neurocognitive Diseases Research Group, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Lea O Danics
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Balázs Besztercei
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Kenan Aloss
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Syeda M Z Bokhari
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Nino Giunashvili
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Dániel Bócsi
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Zoltán Koós
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Zoltán Benyó
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
- HUN-REN-SU Cerebrovascular and Neurocognitive Diseases Research Group, Tűzoltó Utca 37-47, Budapest, 1094, Hungary
| | - Péter Hamar
- Institute of Translational Medicine, Semmelweis University, Tűzoltó Utca 37-47, Budapest, 1094, Hungary.
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Qiu Y, Pei D, Wang M, Wang Q, Duan W, Wang L, Liu K, Guo Y, Luo L, Guo Z, Guan F, Wang Z, Xing A, Liu Z, Ma Z, Jiang G, Yan D, Liu X, Zhang Z, Wang W. Nuclear autoantigenic sperm protein facilitates glioblastoma progression and radioresistance by regulating the ANXA2/STAT3 axis. CNS Neurosci Ther 2024; 30:e14709. [PMID: 38605477 PMCID: PMC11009454 DOI: 10.1111/cns.14709] [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: 12/12/2023] [Revised: 02/28/2024] [Accepted: 03/15/2024] [Indexed: 04/13/2024] Open
Abstract
AIMS Although radiotherapy is a core treatment modality for various human cancers, including glioblastoma multiforme (GBM), its clinical effects are often limited by radioresistance. The specific molecular mechanisms underlying radioresistance are largely unknown, and the reduction of radioresistance is an unresolved challenge in GBM research. METHODS We analyzed and verified the expression of nuclear autoantigenic sperm protein (NASP) in gliomas and its relationship with patient prognosis. We also explored the function of NASP in GBM cell lines. We performed further mechanistic experiments to investigate the mechanisms by which NASP facilitates GBM progression and radioresistance. An intracranial mouse model was used to verify the effectiveness of combination therapy. RESULTS NASP was highly expressed in gliomas, and its expression was negatively correlated with the prognosis of glioma. Functionally, NASP facilitated GBM cell proliferation, migration, invasion, and radioresistance. Mechanistically, NASP interacted directly with annexin A2 (ANXA2) and promoted its nuclear localization, which may have been mediated by phospho-annexin A2 (Tyr23). The NASP/ANXA2 axis was involved in DNA damage repair after radiotherapy, which explains the radioresistance of GBM cells that highly express NASP. NASP overexpression significantly activated the signal transducer and activator of transcription 3 (STAT3) signaling pathway. The combination of WP1066 (a STAT3 pathway inhibitor) and radiotherapy significantly inhibited GBM growth in vitro and in vivo. CONCLUSION Our findings indicate that NASP may serve as a potential biomarker of GBM radioresistance and has important implications for improving clinical radiotherapy.
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Affiliation(s)
- Yuning Qiu
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
- Academy of Medical SciencesZhengzhou UniversityZhengzhouHenanChina
| | - Dongling Pei
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Minkai Wang
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Qimeng Wang
- Academy of Medical SciencesZhengzhou UniversityZhengzhouHenanChina
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Wenchao Duan
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Li Wang
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Kehan Liu
- Academy of Medical SciencesZhengzhou UniversityZhengzhouHenanChina
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Yu Guo
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Lin Luo
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zhixuan Guo
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Fangzhan Guan
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zilong Wang
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Aoqi Xing
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zhongyi Liu
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zeyu Ma
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Guozhong Jiang
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Dongming Yan
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Xianzhi Liu
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zhenyu Zhang
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Weiwei Wang
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
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7
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Viana P, Hamar P. Targeting the heat shock response induced by modulated electro-hyperthermia (mEHT) in cancer. Biochim Biophys Acta Rev Cancer 2024; 1879:189069. [PMID: 38176599 DOI: 10.1016/j.bbcan.2023.189069] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/20/2023] [Accepted: 12/28/2023] [Indexed: 01/06/2024]
Abstract
The Heat Shock Response (HSR) is a cellular stress reaction crucial for cell survival against stressors, including heat, in both healthy and cancer cells. Modulated electro-hyperthermia (mEHT) is an emerging non-invasive cancer therapy utilizing electromagnetic fields to selectively target cancer cells via temperature-dependent and independent mechanisms. However, mEHT triggers HSR in treated cells. Despite demonstrated efficacy in cancer treatment, understanding the underlying molecular mechanisms for improved therapeutic outcomes remains a focus. This review examines the HSR induced by mEHT in cancer cells, discussing potential strategies to modulate it for enhanced tumor-killing effects. Approaches such as HSF1 gene-knockdown and small molecule inhibitors like KRIBB11 are explored to downregulate the HSR and augment tumor destruction. We emphasize the impact of HSR inhibition on cancer cell viability, mEHT sensitivity, and potential synergistic effects, addressing challenges and future directions. This understanding offers opportunities for optimizing treatment strategies and advancing precision medicine in cancer therapy.
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Affiliation(s)
- Pedro Viana
- Institute of Translational Medicine, Semmelweis University, Tűzoltó utca 37-49, 1094 Budapest, Hungary.
| | - Péter Hamar
- Institute of Translational Medicine, Semmelweis University, Tűzoltó utca 37-49, 1094 Budapest, Hungary.
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8
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Mattoo S, Gupta A, Chauhan M, Agrawal A, Pore SK. Prospects and challenges of noncoding-RNA-mediated inhibition of heat shock protein 90 for cancer therapy. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2024; 1867:195006. [PMID: 38218528 DOI: 10.1016/j.bbagrm.2024.195006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/06/2024] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
Heat Shock Protein 90 (HSP90) is a potential drug target for cancer therapy as it is often dysregulated in several cancers, including lung, breast, pancreatic, and prostate cancers. In cancer, HSP90 fails to maintain the structural and functional integrity of its several client proteins which are involved in the hallmarks of cancer such as cell proliferation, invasion, migration, angiogenesis, and apoptosis. Several small molecule inhibitors of HSP90 have been shown to exhibit anticancer effects in vitro and in vivo animal models. However, a few of them are currently under clinical studies. The status and potential limitations of these inhibitors are discussed here. Studies demonstrate that several noncoding RNAs (ncRNAs) such as microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) regulate HSP90 and its client proteins to modulate cellular processes to exhibit oncogenic or tumor suppressing properties. Over the last decade, miRNAs and lncRNAs have drawn significant interest from the scientific community as therapeutic agents or targets for clinical applications. Here, we discuss the detailed mechanistic regulation of HSP90 and its client proteins by ncRNAs. Moreover, we highlight the significance of these ncRNAs as potential therapeutic agents/targets, and the challenges associated with ncRNA-based therapies. This article aims to provide a holistic view on HSP90-regulating ncRNAs for the development of novel therapeutic strategies to combat cancer.
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Affiliation(s)
- Shria Mattoo
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University Uttar Pradesh, Noida 201311, India
| | - Abha Gupta
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University Uttar Pradesh, Noida 201311, India
| | - Manvee Chauhan
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University Uttar Pradesh, Noida 201311, India
| | - Akshi Agrawal
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201311, India
| | - Subrata Kumar Pore
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University Uttar Pradesh, Noida 201311, India.
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9
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Gumilar KE, Chin Y, Ibrahim IH, Tjokroprawiro BA, Yang JY, Zhou M, Gassman NR, Tan M. Heat Shock Factor 1 Inhibition: A Novel Anti-Cancer Strategy with Promise for Precision Oncology. Cancers (Basel) 2023; 15:5167. [PMID: 37958341 PMCID: PMC10649344 DOI: 10.3390/cancers15215167] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Heat shock factor 1 (HSF1) is a transcription factor crucial for regulating heat shock response (HSR), one of the significant cellular protective mechanisms. When cells are exposed to proteotoxic stress, HSF1 induces the expression of heat shock proteins (HSPs) to act as chaperones, correcting the protein-folding process and maintaining proteostasis. In addition to its role in HSR, HSF1 is overexpressed in multiple cancer cells, where its activation promotes malignancy and leads to poor prognosis. The mechanisms of HSF1-induced tumorigenesis are complex and involve diverse signaling pathways, dependent on cancer type. With its important roles in tumorigenesis and tumor progression, targeting HSF1 offers a novel cancer treatment strategy. In this article, we examine the basic function of HSF1 and its regulatory mechanisms, focus on the mechanisms involved in HSF1's roles in different cancer types, and examine current HSF1 inhibitors as novel therapeutics to treat cancers.
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Affiliation(s)
- Khanisyah Erza Gumilar
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan (Y.C.); (I.H.I.); (J.-Y.Y.)
- Department of Obstetrics and Gynecology, Faculty of Medicine, Airlangga University, Surabaya 60286, Indonesia;
| | - Yeh Chin
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan (Y.C.); (I.H.I.); (J.-Y.Y.)
| | - Ibrahim Haruna Ibrahim
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan (Y.C.); (I.H.I.); (J.-Y.Y.)
| | - Brahmana A. Tjokroprawiro
- Department of Obstetrics and Gynecology, Faculty of Medicine, Airlangga University, Surabaya 60286, Indonesia;
| | - Jer-Yen Yang
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan (Y.C.); (I.H.I.); (J.-Y.Y.)
| | - Ming Zhou
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha 410013, China;
| | - Natalie R. Gassman
- Department of Pharmacology and Toxicology, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Ming Tan
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan (Y.C.); (I.H.I.); (J.-Y.Y.)
- Institute of Biochemistry and Molecular Biology, Center for Cancer Biology, China Medical University, Taichung 406040, Taiwan
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10
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Patwardhan CA, Kommalapati VK, Llbiyi T, Singh D, Alfa E, Horuzsko A, Korkaya H, Panda S, Reilly CA, Popik V, Chadli A. Capsaicin binds the N-terminus of Hsp90, induces lysosomal degradation of Hsp70, and enhances the anti-tumor effects of 17-AAG (Tanespimycin). Sci Rep 2023; 13:13790. [PMID: 37612326 PMCID: PMC10447550 DOI: 10.1038/s41598-023-40933-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023] Open
Abstract
Heat shock protein 90 (Hsp90) and its co-chaperones promote cancer, and targeting Hsp90 holds promise for cancer treatment. Most of the efforts to harness this potential have focused on targeting the Hsp90 N-terminus ATP binding site. Although newer-generation inhibitors have shown improved efficacy in aggressive cancers, induction of the cellular heat shock response (HSR) by these inhibitors is thought to limit their clinical efficacy. Therefore, Hsp90 inhibitors with novel mechanisms of action and that do not trigger the HSR would be advantageous. Here, we investigated the mechanism by which capsaicin inhibits Hsp90. Through mutagenesis, chemical modifications, and proteomic studies, we show that capsaicin binds to the N-terminus of Hsp90 and inhibits its ATPase activity. Consequently, capsaicin and its analogs inhibit Hsp90 ATPase-dependent progesterone receptor reconstitution in vitro. Capsaicin did not induce the HSR, instead, it promoted the degradation of Hsp70 through the lysosome-autophagy pathway. Remarkably, capsaicin did not induce degradation of the constitutively expressed cognate Hsc70, indicating selectivity for Hsp70. Combined treatments of capsaicin and the Hsp90 inhibitor 17-AAG improved the anti-tumor efficacy of 17-AAG in cell culture and tridimensional tumor spheroid growth assays using breast and prostate cancer models. Consistent with this, in silico docking studies revealed that capsaicin binding to the ATP binding site of Hsp90 was distinct from classical N-terminus Hsp90 inhibitors, indicating a novel mechanism of action. Collectively, these findings support the use of capsaicin as a chemical scaffold to develop novel Hsp90 N-terminus inhibitors as well as its ability to be a potential cancer co-therapeutic.
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Affiliation(s)
- Chaitanya A Patwardhan
- Georgia Cancer Center at Augusta University (Formerly Medical College of Georgia), 1410 Laney Walker Blvd, CN-3313, Augusta, GA, 30912, USA
| | - Vamsi Krishna Kommalapati
- Georgia Cancer Center at Augusta University (Formerly Medical College of Georgia), 1410 Laney Walker Blvd, CN-3313, Augusta, GA, 30912, USA
| | - Taoufik Llbiyi
- Georgia Cancer Center at Augusta University (Formerly Medical College of Georgia), 1410 Laney Walker Blvd, CN-3313, Augusta, GA, 30912, USA
| | - Digvijay Singh
- Georgia Cancer Center at Augusta University (Formerly Medical College of Georgia), 1410 Laney Walker Blvd, CN-3313, Augusta, GA, 30912, USA
| | - Eyad Alfa
- Georgia Cancer Center at Augusta University (Formerly Medical College of Georgia), 1410 Laney Walker Blvd, CN-3313, Augusta, GA, 30912, USA
| | - Anatolij Horuzsko
- Georgia Cancer Center at Augusta University (Formerly Medical College of Georgia), 1410 Laney Walker Blvd, CN-3313, Augusta, GA, 30912, USA
| | - Hasan Korkaya
- Georgia Cancer Center at Augusta University (Formerly Medical College of Georgia), 1410 Laney Walker Blvd, CN-3313, Augusta, GA, 30912, USA
| | - Siva Panda
- Department of Chemistry and Biochemistry, Augusta University, Augusta, GA, 30912, USA
| | - Christopher A Reilly
- Department of Pharmacology and Toxicology, Center for Human Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT, 84112, USA
| | - Vladimir Popik
- Department of Chemistry, University of Georgia, Athens, GA, 30602, USA
| | - Ahmed Chadli
- Georgia Cancer Center at Augusta University (Formerly Medical College of Georgia), 1410 Laney Walker Blvd, CN-3313, Augusta, GA, 30912, USA.
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11
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Pasqua AE, Sharp SY, Chessum NEA, Hayes A, Pellegrino L, Tucker MJ, Miah A, Wilding B, Evans LE, Rye CS, Mok NY, Liu M, Henley AT, Gowan S, De Billy E, te Poele R, Powers M, Eccles SA, Clarke PA, Raynaud FI, Workman P, Jones K, Cheeseman MD. HSF1 Pathway Inhibitor Clinical Candidate (CCT361814/NXP800) Developed from a Phenotypic Screen as a Potential Treatment for Refractory Ovarian Cancer and Other Malignancies. J Med Chem 2023; 66:5907-5936. [PMID: 37017629 PMCID: PMC10150365 DOI: 10.1021/acs.jmedchem.3c00156] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Indexed: 04/06/2023]
Abstract
CCT251236 1, a potent chemical probe, was previously developed from a cell-based phenotypic high-throughput screen (HTS) to discover inhibitors of transcription mediated by HSF1, a transcription factor that supports malignancy. Owing to its activity against models of refractory human ovarian cancer, 1 was progressed into lead optimization. The reduction of P-glycoprotein efflux became a focus of early compound optimization; central ring halogen substitution was demonstrated by matched molecular pair analysis to be an effective strategy to mitigate this liability. Further multiparameter optimization led to the design of the clinical candidate, CCT361814/NXP800 22, a potent and orally bioavailable fluorobisamide, which caused tumor regression in a human ovarian adenocarcinoma xenograft model with on-pathway biomarker modulation and a clean in vitro safety profile. Following its favorable dose prediction to human, 22 has now progressed to phase 1 clinical trial as a potential future treatment for refractory ovarian cancer and other malignancies.
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Affiliation(s)
- A. Elisa Pasqua
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Swee Y. Sharp
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Nicola E. A. Chessum
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Angela Hayes
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Loredana Pellegrino
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Michael J. Tucker
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Asadh Miah
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Birgit Wilding
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Lindsay E. Evans
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Carl S. Rye
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - N. Yi Mok
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Manjuan Liu
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Alan T. Henley
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Sharon Gowan
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Emmanuel De Billy
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Robert te Poele
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Marissa Powers
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Suzanne A. Eccles
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Paul A. Clarke
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Florence I. Raynaud
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Paul Workman
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Keith Jones
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
| | - Matthew D. Cheeseman
- Centre for Cancer Drug Discovery
and Division of Cancer Therapeutics at The Institute of Cancer Research, London SW7 3RP, United Kingdom
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12
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Vilaboa N, Lopez JA, de Mesa M, Escudero-Duch C, Winfield N, Bayford M, Voellmy R. Disruption of Proteostasis by Natural Products and Synthetic Compounds That Induce Pervasive Unfolding of Proteins: Therapeutic Implications. Pharmaceuticals (Basel) 2023; 16:ph16040616. [PMID: 37111374 PMCID: PMC10145903 DOI: 10.3390/ph16040616] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
Exposure of many cancer cells, including multiple myeloma cells, to cytotoxic concentrations of natural products celastrol and withaferin A or synthetic compounds of the IHSF series resulted in denaturation of a luciferase reporter protein. Proteomic analysis of detergent-insoluble extract fractions from HeLa-derived cells revealed that withaferin A, IHSF058 and IHSF115 caused denaturation of 915, 722 and 991 of 5132 detected cellular proteins, respectively, of which 440 were targeted by all three compounds. Western blots showed that important fractions of these proteins, in some cases approaching half of total protein amounts, unfolded. Relatively indiscriminate covalent modification of target proteins was observed; 1178 different proteins were modified by IHSF058. Further illustrating the depth of the induced proteostasis crisis, only 13% of these proteins detectably aggregated, and 79% of the proteins that aggregated were not targets of covalent modification. Numerous proteostasis network components were modified and/or found in aggregates. Proteostasis disruption caused by the study compounds may be more profound than that mediated by proteasome inhibitors. The compounds act by a different mechanism that may be less susceptible to resistance development. Multiple myeloma cells were particularly sensitive to the compounds. Development of an additional proteostasis-disrupting therapy of multiple myeloma is suggested.
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Affiliation(s)
- Nuria Vilaboa
- Hospital Universitario La Paz-IdiPAZ, 28046 Madrid, Spain
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, 28046 Madrid, Spain
| | - Juan Antonio Lopez
- Centro Nacional de Investigaciones Cardiovasculares, CNIC, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, CIBERCV, 28029 Madrid, Spain
| | - Marco de Mesa
- Hospital Universitario La Paz-IdiPAZ, 28046 Madrid, Spain
| | - Clara Escudero-Duch
- Hospital Universitario La Paz-IdiPAZ, 28046 Madrid, Spain
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, 28046 Madrid, Spain
| | - Natalie Winfield
- Domainex Ltd., Chesterford Research Park, Little Chesterford, Essex, Saffron Walden CB10 1XL, UK
| | - Melanie Bayford
- Domainex Ltd., Chesterford Research Park, Little Chesterford, Essex, Saffron Walden CB10 1XL, UK
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13
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Mitra S, Dash R, Sohel M, Chowdhury A, Munni YA, Ali C, Hannan MA, Islam T, Moon IS. Targeting Estrogen Signaling in the Radiation-induced Neurodegeneration: A Possible Role of Phytoestrogens. Curr Neuropharmacol 2023; 21:353-379. [PMID: 35272592 PMCID: PMC10190149 DOI: 10.2174/1570159x20666220310115004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/01/2022] [Accepted: 03/06/2022] [Indexed: 11/22/2022] Open
Abstract
Radiation for medical use is a well-established therapeutic method with an excellent prognosis rate for various cancer treatments. Unfortunately, a high dose of radiation therapy comes with its own share of side effects, causing radiation-induced non-specific cellular toxicity; consequently, a large percentage of treated patients suffer from chronic effects during the treatment and even after the post-treatment. Accumulating data evidenced that radiation exposure to the brain can alter the diverse cognitive-related signaling and cause progressive neurodegeneration in patients because of elevated oxidative stress, neuroinflammation, and loss of neurogenesis. Epidemiological studies suggested the beneficial effect of hormonal therapy using estrogen in slowing down the progression of various neuropathologies. Despite its primary function as a sex hormone, estrogen is also renowned for its neuroprotective activity and could manage radiation-induced side effects as it regulates many hallmarks of neurodegenerations. Thus, treatment with estrogen and estrogen-like molecules or modulators, including phytoestrogens, might be a potential approach capable of neuroprotection in radiation-induced brain degeneration. This review summarized the molecular mechanisms of radiation effects and estrogen signaling in the manifestation of neurodegeneration and highlighted the current evidence on the phytoestrogen mediated protective effect against radiationinduced brain injury. This existing knowledge points towards a new area to expand to identify the possible alternative therapy that can be taken with radiation therapy as adjuvants to improve patients' quality of life with compromised cognitive function.
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Affiliation(s)
- Sarmistha Mitra
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju38066, Republic of Korea
| | - Raju Dash
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju38066, Republic of Korea
| | - Md. Sohel
- Department of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Santosh, Tangail-1902, Bangladesh
| | - Apusi Chowdhury
- Department of Pharmaceutical Science, North-South University, Dhaka-12 29, Bangladesh
| | - Yeasmin Akter Munni
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju38066, Republic of Korea
| | - Chayan Ali
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala SE-751 08, Sweden
| | - Md. Abdul Hannan
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
| | - Tofazzal Islam
- Institute of Biotechnology and Genetic Engineering (IBGE), Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
| | - Il Soo Moon
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju38066, Republic of Korea
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14
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Dong Q, Xiu Y, Wang Y, Hodgson C, Borcherding N, Jordan C, Buchanan J, Taylor E, Wagner B, Leidinger M, Holman C, Thiele DJ, O’Brien S, Xue HH, Zhao J, Li Q, Meyerson H, Boyce BF, Zhao C. HSF1 is a driver of leukemia stem cell self-renewal in acute myeloid leukemia. Nat Commun 2022; 13:6107. [PMID: 36245043 PMCID: PMC9573868 DOI: 10.1038/s41467-022-33861-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 10/05/2022] [Indexed: 01/25/2023] Open
Abstract
Acute myeloid leukemia (AML) is maintained by self-renewing leukemic stem cells (LSCs). A fundamental problem in treating AML is that conventional therapy fails to eliminate LSCs, which can reinitiate leukemia. Heat shock transcription factor 1 (HSF1), a central regulator of the stress response, has emerged as an important target in cancer therapy. Using genetic Hsf1 deletion and a direct HSF1 small molecule inhibitor, we show that HSF1 is specifically required for the maintenance of AML, while sparing steady-state and stressed hematopoiesis. Mechanistically, deletion of Hsf1 dysregulates multifaceted genes involved in LSC stemness and suppresses mitochondrial oxidative phosphorylation through downregulation of succinate dehydrogenase C (SDHC), a direct HSF1 target. Forced expression of SDHC largely restores the Hsf1 ablation-induced AML developmental defect. Importantly, the growth and engraftment of human AML cells are suppressed by HSF1 inhibition. Our data provide a rationale for developing efficacious small molecules to specifically target HSF1 in AML.
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Affiliation(s)
- Qianze Dong
- grid.67105.350000 0001 2164 3847Department of Pathology, Case Western Reserve University, Cleveland, OH 44106 USA
| | - Yan Xiu
- grid.67105.350000 0001 2164 3847Department of Pathology, Case Western Reserve University, Cleveland, OH 44106 USA ,grid.410349.b0000 0004 5912 6484Department of Pathology, Louis Stokes Veterans Affairs Medical Center, Cleveland, OH 44106 USA
| | - Yang Wang
- grid.67105.350000 0001 2164 3847Department of Pathology, Case Western Reserve University, Cleveland, OH 44106 USA
| | | | - Nick Borcherding
- grid.4367.60000 0001 2355 7002Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO 63110 USA
| | - Craig Jordan
- grid.241116.10000000107903411Division of Hematology, University of Colorado Anschutz Campus, Denver, CO 80045 USA
| | - Jane Buchanan
- grid.214572.70000 0004 1936 8294Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, IA 52240 USA
| | - Eric Taylor
- grid.214572.70000 0004 1936 8294Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, IA 52240 USA
| | - Brett Wagner
- grid.214572.70000 0004 1936 8294Free Radical and Radiation Biology Program, Department of Radiation Oncology, University of Iowa, Iowa City, IA 52242 USA
| | - Mariah Leidinger
- grid.214572.70000 0004 1936 8294Department of Pathology, University of Iowa, Iowa City, IA 52242 USA
| | - Carol Holman
- grid.214572.70000 0004 1936 8294Department of Pathology, University of Iowa, Iowa City, IA 52242 USA
| | | | | | - Hai-hui Xue
- grid.239835.60000 0004 0407 6328Center for Discovery and Innovation, Hackensack University Medical Center, Nutley, NJ 07110 USA
| | - Jinming Zhao
- grid.67105.350000 0001 2164 3847Department of Pathology, Case Western Reserve University, Cleveland, OH 44106 USA ,grid.412449.e0000 0000 9678 1884Department of Pathology, China Medical University, 77 Puhe Rd, Shenbei Xinqu, Shenyang Shi, 110122 Liaoning Sheng China
| | - Qingchang Li
- grid.412449.e0000 0000 9678 1884Department of Pathology, China Medical University, 77 Puhe Rd, Shenbei Xinqu, Shenyang Shi, 110122 Liaoning Sheng China
| | - Howard Meyerson
- grid.443867.a0000 0000 9149 4843Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, OH 44106 USA
| | - Brendan F. Boyce
- grid.412750.50000 0004 1936 9166Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY 14642 USA
| | - Chen Zhao
- grid.67105.350000 0001 2164 3847Department of Pathology, Case Western Reserve University, Cleveland, OH 44106 USA ,grid.410349.b0000 0004 5912 6484Department of Pathology, Louis Stokes Veterans Affairs Medical Center, Cleveland, OH 44106 USA ,grid.443867.a0000 0000 9149 4843Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, OH 44106 USA
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15
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The role of mixed lineage kinase 3 (MLK3) in cancers. Pharmacol Ther 2022; 238:108269. [DOI: 10.1016/j.pharmthera.2022.108269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 10/15/2022]
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16
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Javid H, Hashemian P, Yazdani S, Sharbaf Mashhad A, Karimi-Shahri M. The role of heat shock proteins in metastatic colorectal cancer: A review. J Cell Biochem 2022; 123:1704-1735. [PMID: 36063530 DOI: 10.1002/jcb.30326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/20/2022] [Accepted: 08/24/2022] [Indexed: 01/18/2023]
Abstract
Heat shock proteins (HSPs) are a large molecular chaperone family classified by their molecular weights, including HSP27, HSP40, HSP60, HSP70, HSP90, and HSP110. HSPs are likely to have antiapoptotic properties and participate actively in various processes such as tumor cell proliferation, invasion, metastases, and death. In this review, we discuss comprehensively the functions of HSPs associated with the progression of colorectal cancer (CRC) and metastasis and resistance to cancer therapy. Taken together, HSPs have numerous clinical applications as biomarkers for cancer diagnosis and prognosis and potential therapeutic targets for CRC and its related metastases.
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Affiliation(s)
- Hossein Javid
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Laboratory Sciences, Varastegan Institute for Medical Sciences, Mashhad, Iran
| | - Pedram Hashemian
- Jahad Daneshgahi Research Committee, Jahad Daneshgahi Institute, Mashhad, Iran
| | - Shaghayegh Yazdani
- Department of Medical Laboratory Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Laboratory Sciences, Ilam University of Medical Sciences, Ilam, Iran
| | - Alireza Sharbaf Mashhad
- Department of Medical Laboratory Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Karimi-Shahri
- Department of Pathology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pathology, School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
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17
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Drake JM, Lang BJ, Guerrero-Gimenez ME, Bolton J, Dow CA, Calderwood SK, Price JT, Nguyen CH. Regulation of a Novel Splice Variant of Early Growth Response 4 (EGR4-S) by HER+ Signalling and HSF1 in Breast Cancer. Cancers (Basel) 2022; 14:1567. [PMID: 35326716 PMCID: PMC8946690 DOI: 10.3390/cancers14061567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/27/2022] [Accepted: 03/04/2022] [Indexed: 12/24/2022] Open
Abstract
The zinc finger transcription factor EGR4 has previously been identified as having a critical role in the proliferation of small cell lung cancer. Here, we have identified a novel, shortened splice variant of this transcription factor (EGR4-S) that is regulated by Heat Shock Factor-1 (HSF1). Our findings demonstrate that the shortened variant (EGR4-S) is upregulated with high EGFR, HER2, and H-Rasv12-expressing breast cell lines, and its expression is inhibited in response to HER pathway inhibitors. Protein and mRNA analyses of HER2+ human breast tumours indicated the novel EGR4-S splice variant to be preferentially expressed in tumour tissue and not detectable in patient-matched normal tissue. Knockdown of EGR4-S in the HER2-amplified breast cancer cell line SKBR3 reduced cell growth, suggesting that EGR4-S supports the growth of HER2+ tumour cells. In addition to chemical inhibitors of the HER2 pathway, EGR4-S expression was also found to be suppressed by chemical stressors and the overexpression of HSF1. Under these conditions, reduced EGR4-S levels were associated with the observed lower cell growth rate, but the augmentation of properties associated with higher metastatic potential. Taken together, these findings identify EGR4-S as a potential biomarker for HER2 pathway activation in human tumours that is regulated by HSF1.
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Affiliation(s)
- Jeremy M Drake
- ProMetTre Cancer Research, Melbourne 3205, Australia
- College of Health and Biomedicine, Victoria University, Melbourne 8001, Australia
| | - Benjamin J Lang
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Martin Eduardo Guerrero-Gimenez
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Mendoza 5500, Argentina
| | - Jack Bolton
- College of Health and Biomedicine, Victoria University, Melbourne 8001, Australia
| | - Christopher A Dow
- Dorevitch Pathology, Western Hospital, Melbourne 3011, Australia
- Department of Medicine, University of Melbourne, Melbourne 3052, Australia
| | - Stuart K Calderwood
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - John T Price
- College of Health and Biomedicine, Victoria University, Melbourne 8001, Australia
- Institute for Health and Sport, Victoria University, Melbourne 8001, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University and Western Health, Melbourne 8001, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton 3800, Australia
| | - Chau H Nguyen
- College of Health and Biomedicine, Victoria University, Melbourne 8001, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton 3800, Australia
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18
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Xu A, Zhang J, Zuo L, Yan H, Chen L, Zhao F, Fan F, Xu J, Zhang B, Zhang Y, Yin X, Cheng Q, Gao S, Deng J, Mei H, Huang Z, Sun C, Hu Y. FTO promotes multiple myeloma progression by posttranscriptional activation of HSF1 in an m 6A-YTHDF2-dependent manner. Mol Ther 2022; 30:1104-1118. [PMID: 34915192 PMCID: PMC8899603 DOI: 10.1016/j.ymthe.2021.12.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 10/23/2021] [Accepted: 12/10/2021] [Indexed: 01/27/2023] Open
Abstract
N6-methyladenosine (m6A), as the most pervasive internal modification of eukaryotic mRNA, plays a crucial role in various cancers, but its role in multiple myeloma (MM) pathogenesis has not yet been investigated. In this study, we revealed significantly decreased m6A methylation in plasma cells (PCs) from MM patients and showed that the abnormal m6A level resulted mainly from upregulation of the demethylase fat mass and obesity-associated protein (FTO). Gain- and loss-of-function studies demonstrated that FTO plays a tumor-promoting and pro-metastatic role in MM. Combined m6A and RNA sequencing (RNA-seq) and subsequent validation and functional studies identified heat shock factor 1 (HSF1) as a functional target of FTO-mediated m6A modification. FTO significantly promotes MM cell proliferation, migration, and invasion by targeting HSF1/HSPs in a YTHDF2-dependent manner. FTO inhibition, especially when combined with bortezomib (BTZ) treatment, synergistically inhibited myeloma bone tumor formation and extramedullary spread in NOD-Prkdcem26Cd52il2rgem26Cd22/Nju (NCG) mice. We demonstrated the functional importance of m6A demethylase FTO in MM progression, especially in promoting extramedullary myeloma (EMM) formation, and proposed the FTO-HSF1/HSP axis as a potential novel therapeutic target in MM.
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Affiliation(s)
- Aoshuang Xu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiasi Zhang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Liping Zuo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Han Yan
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lei Chen
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Fei Zhao
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Fengjuan Fan
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jian Xu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Bo Zhang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuyang Zhang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xuejiao Yin
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Qianwen Cheng
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Su Gao
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jun Deng
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Heng Mei
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhiping Huang
- Department of Hematology, Jingzhou Central Hospital, Jingzhou 434020, China
| | - Chunyan Sun
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Yu Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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19
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Quantitative Comparison of HSF1 Activators. Mol Biotechnol 2022; 64:873-887. [PMID: 35218516 PMCID: PMC9259536 DOI: 10.1007/s12033-022-00467-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 02/11/2022] [Indexed: 11/02/2022]
Abstract
The heat shock response (HSR) pathway is a highly conserved rescue mechanism, which protects the cells from harmful insults disturbing the cellular protein homeostasis via expression of chaperones. Furthermore, it was demonstrated to play crucial roles in various diseases like neurodegeneration and cancer. For neurodegenerative diseases, an overexpression of chaperones is a potential therapeutic approach to clear the cells from non-functional protein aggregates. Therefore, activators of the HSR pathway and its master regulator HSF1 are under close observation. There are numerous HSR activators published in the literature using different model systems, experimental designs, and readout assays. The aim of this work was to provide a quantitative comparison of a broad range of published activators using a newly developed HSF responsive dual-luciferase cell line. Contrary to natural target genes, which are regulated by multiple input pathways, the artificial reporter exclusively reacts to HSF activity. In addition, the results were compared to endogenous heat shock protein expression. As a result, great differences in the intensity of pathway activation were observed. In addition, a parallel viability assessment revealed high variability in the specificity of the drugs. Furthermore, the differences seen compared to published data indicate that some activators exhibit tissue-specific differences leading to interesting assumptions about the regulation of HSF1.
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20
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Shkedi A, Adkisson M, Schroeder A, Eckalbar WL, Kuo SY, Neckers L, Gestwicki JE. Inhibitor Combinations Reveal Wiring of the Proteostasis Network in Prostate Cancer Cells. J Med Chem 2021; 64:14809-14821. [PMID: 34606726 PMCID: PMC8806517 DOI: 10.1021/acs.jmedchem.1c01342] [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] [Indexed: 11/29/2022]
Abstract
The protein homeostasis (proteostasis) network is composed of multiple pathways that work together to balance protein folding, stability, and turnover. Cancer cells are particularly reliant on this network; however, it is hypothesized that inhibition of one node might lead to compensation. To better understand these connections, we dosed 22Rv1 prostate cancer cells with inhibitors of four proteostasis targets (Hsp70, Hsp90, proteasome, and p97), either alone or in binary combinations, and measured the effects on cell growth. The results reveal a series of additive, synergistic, and antagonistic relationships, including strong synergy between inhibitors of p97 and the proteasome and striking antagonism between inhibitors of Hsp90 and the proteasome. Based on RNA-seq, these relationships are associated, in part, with activation of stress pathways. Together, these results suggest that cocktails of proteostasis inhibitors might be a powerful way of treating some cancers, although antagonism that blunts the efficacy of both molecules is also possible.
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Affiliation(s)
- Arielle Shkedi
- Department of Pharmaceutical Chemistry and the Institute for Neurodegenerative Disease, University of California San Francisco, San Francisco CA 94158
| | - Michael Adkisson
- Functional Genomics Core, University of California San Francisco, San Francisco, CA 94158
| | - Andrew Schroeder
- Functional Genomics Core, University of California San Francisco, San Francisco, CA 94158
| | - Walter L Eckalbar
- Functional Genomics Core, University of California San Francisco, San Francisco, CA 94158
| | - Szu-Yu Kuo
- Department of Pharmaceutical Chemistry and the Institute for Neurodegenerative Disease, University of California San Francisco, San Francisco CA 94158
| | - Leonard Neckers
- Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892
| | - Jason E. Gestwicki
- Department of Pharmaceutical Chemistry and the Institute for Neurodegenerative Disease, University of California San Francisco, San Francisco CA 94158
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21
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Alford BD, Tassoni-Tsuchida E, Khan D, Work JJ, Valiant G, Brandman O. ReporterSeq reveals genome-wide dynamic modulators of the heat shock response across diverse stressors. eLife 2021; 10:57376. [PMID: 34223816 PMCID: PMC8257254 DOI: 10.7554/elife.57376] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/11/2021] [Indexed: 12/16/2022] Open
Abstract
Understanding cellular stress response pathways is challenging because of the complexity of regulatory mechanisms and response dynamics, which can vary with both time and the type of stress. We developed a reverse genetic method called ReporterSeq to comprehensively identify genes regulating a stress-induced transcription factor under multiple conditions in a time-resolved manner. ReporterSeq links RNA-encoded barcode levels to pathway-specific output under genetic perturbations, allowing pooled pathway activity measurements via DNA sequencing alone and without cell enrichment or single-cell isolation. We used ReporterSeq to identify regulators of the heat shock response (HSR), a conserved, poorly understood transcriptional program that protects cells from proteotoxicity and is misregulated in disease. Genome-wide HSR regulation in budding yeast was assessed across 15 stress conditions, uncovering novel stress-specific, time-specific, and constitutive regulators. ReporterSeq can assess the genetic regulators of any transcriptional pathway with the scale of pooled genetic screens and the precision of pathway-specific readouts.
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Affiliation(s)
- Brian D Alford
- Department of Biochemistry, Stanford University, Stanford, United States
| | - Eduardo Tassoni-Tsuchida
- Department of Biochemistry, Stanford University, Stanford, United States.,Department of Biology, Stanford University, Stanford, United States
| | - Danish Khan
- Department of Biochemistry, Stanford University, Stanford, United States
| | - Jeremy J Work
- Department of Biochemistry, Stanford University, Stanford, United States
| | - Gregory Valiant
- Department of Computer Science, Stanford University, Stanford, United States
| | - Onn Brandman
- Department of Biochemistry, Stanford University, Stanford, United States
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22
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Isermann T, Şener ÖÇ, Stender A, Klemke L, Winkler N, Neesse A, Li J, Wegwitz F, Moll UM, Schulz-Heddergott R. Suppression of HSF1 activity by wildtype p53 creates a driving force for p53 loss-of-heterozygosity. Nat Commun 2021; 12:4019. [PMID: 34188043 PMCID: PMC8242083 DOI: 10.1038/s41467-021-24064-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
The vast majority of human tumors with p53 mutations undergo loss of the remaining wildtype p53 allele (loss-of-heterozygosity, p53LOH). p53LOH has watershed significance in promoting tumor progression. However, driving forces for p53LOH are poorly understood. Here we identify the repressive WTp53-HSF1 axis as one driver of p53LOH. We find that the WTp53 allele in AOM/DSS chemically-induced colorectal tumors (CRC) of p53R248Q/+ mice retains partial activity and represses heat-shock factor 1 (HSF1), the master regulator of the proteotoxic stress response (HSR) that is ubiquitously activated in cancer. HSR is critical for stabilizing oncogenic proteins including mutp53. WTp53-retaining CRC tumors, tumor-derived organoids and human CRC cells all suppress the tumor-promoting HSF1 program. Mechanistically, retained WTp53 activates CDKN1A/p21, causing cell cycle inhibition and suppression of E2F target MLK3. MLK3 links cell cycle with the MAPK stress pathway to activate the HSR response. In p53R248Q/+ tumors WTp53 activation by constitutive stress represses MLK3, thereby weakening the MAPK-HSF1 response necessary for tumor survival. This creates selection pressure for p53LOH which eliminates the repressive WTp53-MAPK-HSF1 axis and unleashes tumor-promoting HSF1 functions, inducing mutp53 stabilization enabling invasion.
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Affiliation(s)
- Tamara Isermann
- Institute of Molecular Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Özge Çiçek Şener
- Institute of Molecular Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Adrian Stender
- Institute of Molecular Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Luisa Klemke
- Institute of Molecular Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Nadine Winkler
- Institute of Molecular Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Albrecht Neesse
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany
| | - Jinyu Li
- Department of Pathology, Stony Brook University, Stony Brook, NY, USA
| | - Florian Wegwitz
- Department of Gynecology and Obstetrics, University Medical Center Göttingen, Göttingen, Germany
| | - Ute M Moll
- Institute of Molecular Oncology, University Medical Center Göttingen, Göttingen, Germany
- Department of Pathology, Stony Brook University, Stony Brook, NY, USA
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23
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Feder ZA, Ali A, Singh A, Krakowiak J, Zheng X, Bindokas VP, Wolfgeher D, Kron SJ, Pincus D. Subcellular localization of the J-protein Sis1 regulates the heat shock response. J Cell Biol 2021; 220:211600. [PMID: 33326013 PMCID: PMC7748816 DOI: 10.1083/jcb.202005165] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/13/2020] [Accepted: 11/06/2020] [Indexed: 12/24/2022] Open
Abstract
Cells exposed to heat shock induce a conserved gene expression program, the heat shock response (HSR), encoding protein homeostasis (proteostasis) factors. Heat shock also triggers proteostasis factors to form subcellular quality control bodies, but the relationship between these spatial structures and the HSR is unclear. Here we show that localization of the J-protein Sis1, a cofactor for the chaperone Hsp70, controls HSR activation in yeast. Under nonstress conditions, Sis1 is concentrated in the nucleoplasm, where it promotes Hsp70 binding to the transcription factor Hsf1, repressing the HSR. Upon heat shock, Sis1 forms an interconnected network with other proteostasis factors that spans the nucleolus and the surface of the endoplasmic reticulum. We propose that localization of Sis1 to this network directs Hsp70 activity away from Hsf1 in the nucleoplasm, leaving Hsf1 free to induce the HSR. In this manner, Sis1 couples HSR activation to the spatial organization of the proteostasis network.
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Affiliation(s)
- Zoë A Feder
- Whitehead Institute for Biomedical Research, Cambridge, MA
| | - Asif Ali
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL
| | - Abhyudai Singh
- Department of Electrical and Computer Engineering, University of Delaware, Newark, DE.,Department of Biomedical Engineering, University of Delaware, Newark, DE.,Department of Mathematical Sciences, University of Delaware, Newark, DE.,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE
| | | | - Xu Zheng
- Whitehead Institute for Biomedical Research, Cambridge, MA.,State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Vytas P Bindokas
- Integrated Light Microscopy Core Facility, University of Chicago, Chicago, IL
| | - Donald Wolfgeher
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL
| | - Stephen J Kron
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL
| | - David Pincus
- Whitehead Institute for Biomedical Research, Cambridge, MA.,Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL.,Center for Physics of Evolving Systems, University of Chicago, Chicago, IL
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24
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Ainslie A, Huiting W, Barazzuol L, Bergink S. Genome instability and loss of protein homeostasis: converging paths to neurodegeneration? Open Biol 2021; 11:200296. [PMID: 33878947 PMCID: PMC8059563 DOI: 10.1098/rsob.200296] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Genome instability and loss of protein homeostasis are hallmark events of age-related diseases that include neurodegeneration. Several neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, Huntington's disease and amyotrophic lateral sclerosis are characterized by protein aggregation, while an impaired DNA damage response (DDR) as in many genetic DNA repair disorders leads to pronounced neuropathological features. It remains unclear to what degree these cellular events interconnect with each other in the development of neurological diseases. This review highlights how the loss of protein homeostasis and genome instability influence one other. We will discuss studies that illustrate this connection. DNA damage contributes to many neurodegenerative diseases, as shown by an increased level of DNA damage in patients, possibly due to the effects of protein aggregates on chromatin, the sequestration of DNA repair proteins and novel putative DNA repair functions. Conversely, genome stability is also important for protein homeostasis. For example, gene copy number variations and the loss of key DDR components can lead to marked proteotoxic stress. An improved understanding of how protein homeostasis and genome stability are mechanistically connected is needed and promises to lead to the development of novel therapeutic interventions.
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Affiliation(s)
- Anna Ainslie
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands.,Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Wouter Huiting
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Lara Barazzuol
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands.,Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Steven Bergink
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
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25
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Lallier M, Marchandet L, Moukengue B, Charrier C, Baud’huin M, Verrecchia F, Ory B, Lamoureux F. Molecular Chaperones in Osteosarcoma: Diagnosis and Therapeutic Issues. Cells 2021; 10:cells10040754. [PMID: 33808130 PMCID: PMC8067202 DOI: 10.3390/cells10040754] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/12/2021] [Accepted: 03/25/2021] [Indexed: 12/16/2022] Open
Abstract
Osteosarcoma (OS) is the most common form of primary bone tumor affecting mainly children and young adults. Despite therapeutic progress, the 5-year survival rate is 70%, but it drops drastically to 30% for poor responders to therapies or for patients with metastases. Identifying new therapeutic targets is thus essential. Heat Shock Proteins (HSPs) are the main effectors of Heat Shock Response (HSR), the expression of which is induced by stressors. HSPs are a large family of proteins involved in the folding and maturation of other proteins in order to maintain proteostasis. HSP overexpression is observed in many cancers, including breast, prostate, colorectal, lung, and ovarian, as well as OS. In this article we reviewed the significant role played by HSPs in molecular mechanisms leading to OS development and progression. HSPs are directly involved in OS cell proliferation, apoptosis inhibition, migration, and drug resistance. We focused on HSP27, HSP60, HSP70 and HSP90 and summarized their potential clinical uses in OS as either biomarkers for diagnosis or therapeutic targets. Finally, based on different types of cancer, we consider the advantage of targeting heat shock factor 1 (HSF1), the major transcriptional regulator of HSPs in OS.
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Affiliation(s)
- Morgane Lallier
- UMR1238, Phy-OS, Sarcomes Osseux et Remodelage des Tissus Calcifiés, INSERM, Université de Nantes, 44035 Nantes, France; (M.L.); (L.M.); (B.M.); (C.C.); (M.B.); (F.V.); (B.O.)
| | - Louise Marchandet
- UMR1238, Phy-OS, Sarcomes Osseux et Remodelage des Tissus Calcifiés, INSERM, Université de Nantes, 44035 Nantes, France; (M.L.); (L.M.); (B.M.); (C.C.); (M.B.); (F.V.); (B.O.)
| | - Brice Moukengue
- UMR1238, Phy-OS, Sarcomes Osseux et Remodelage des Tissus Calcifiés, INSERM, Université de Nantes, 44035 Nantes, France; (M.L.); (L.M.); (B.M.); (C.C.); (M.B.); (F.V.); (B.O.)
| | - Celine Charrier
- UMR1238, Phy-OS, Sarcomes Osseux et Remodelage des Tissus Calcifiés, INSERM, Université de Nantes, 44035 Nantes, France; (M.L.); (L.M.); (B.M.); (C.C.); (M.B.); (F.V.); (B.O.)
| | - Marc Baud’huin
- UMR1238, Phy-OS, Sarcomes Osseux et Remodelage des Tissus Calcifiés, INSERM, Université de Nantes, 44035 Nantes, France; (M.L.); (L.M.); (B.M.); (C.C.); (M.B.); (F.V.); (B.O.)
- CHU Nantes, 44035 Nantes, France
| | - Franck Verrecchia
- UMR1238, Phy-OS, Sarcomes Osseux et Remodelage des Tissus Calcifiés, INSERM, Université de Nantes, 44035 Nantes, France; (M.L.); (L.M.); (B.M.); (C.C.); (M.B.); (F.V.); (B.O.)
| | - Benjamin Ory
- UMR1238, Phy-OS, Sarcomes Osseux et Remodelage des Tissus Calcifiés, INSERM, Université de Nantes, 44035 Nantes, France; (M.L.); (L.M.); (B.M.); (C.C.); (M.B.); (F.V.); (B.O.)
| | - François Lamoureux
- UMR1238, Phy-OS, Sarcomes Osseux et Remodelage des Tissus Calcifiés, INSERM, Université de Nantes, 44035 Nantes, France; (M.L.); (L.M.); (B.M.); (C.C.); (M.B.); (F.V.); (B.O.)
- Correspondence:
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26
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Dash R, Jahan I, Ali MC, Mitra S, Munni YA, Timalsina B, Hannan MA, Moon IS. Potential roles of natural products in the targeting of proteinopathic neurodegenerative diseases. Neurochem Int 2021; 145:105011. [PMID: 33711400 DOI: 10.1016/j.neuint.2021.105011] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/14/2022]
Abstract
Defective proteostasis is associated with the gradual accumulations of misfolded proteins and is a hallmark of many age-associated neurodegenerative diseases. In the aged brain, maintenance of the proteostasis network presents a substantial challenge, and its loss contributes to the onset and progression of neurological diseases associated with cognitive decline due to the generation of toxic protein aggregates, a process termed 'proteinopathy'. Emerging evidence suggests that reversing proteinopathies by boosting proteostasis might provide an effective means of preventing neurodegeneration. From this perspective, phytochemicals may play significant roles as potent modulators of the proteostasis network, as previous reports have suggested they can interact with various network components to modify pathologies and confer neuroprotection. This review focuses on some potent phytochemicals that directly or indirectly modulate the proteostasis network and on their possible molecular targets. In addition, we propose strategies for the natural product-based modulation of proteostasis machinery that target proteinopathies.
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Affiliation(s)
- Raju Dash
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea
| | - Israt Jahan
- Department of Pharmacy, Faculty of Life and Earth Sciences, Jagannath University, Dhaka, 1100, Bangladesh
| | - Md Chayan Ali
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Sciences, Islamic University, Kushtia, 7003, Bangladesh
| | - Sarmistha Mitra
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea
| | - Yeasmin Akter Munni
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea
| | - Binod Timalsina
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea
| | - Md Abdul Hannan
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea; Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Il Soo Moon
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea.
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27
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Confocal Laser Scanning Microscopy and Fluorescence Correlation Methods for the Evaluation of Molecular Interactions. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1310:1-30. [PMID: 33834430 DOI: 10.1007/978-981-33-6064-8_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Confocal laser scanning microscopy (CLSM) and related microscopic techniques allow a unique and versatile approach to image and analyze living cells due to their specificity and high sensitivity. Among confocal related techniques, fluorescence correlation methods, such as fluorescence correlation spectroscopy (FCS) and dual-color fluorescence cross-correlation spectroscopy (FCCS), are highly sensitive biophysical methods for analyzing the complex dynamic events of molecular diffusion and interaction change in live cells as well as in solution by exploiting the characteristics of fluorescence signals. Analytical and quantitative information from FCS and FCCS coupled with fluorescence images obtained from CLSM can now be applied in convergence science such as drug delivery and nanomedicine, as well as in basic cell biology. In this chapter, a brief introduction into the physical parameters that can be obtained from FCS and FCCS is first provided. Secondly, experimental examples of the methods for evaluating the parameters is presented. Finally, two potential FCS and FCCS applications for convergence science are introduced in more detail.
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28
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Hervás R, Oroz J. Mechanistic Insights into the Role of Molecular Chaperones in Protein Misfolding Diseases: From Molecular Recognition to Amyloid Disassembly. Int J Mol Sci 2020; 21:ijms21239186. [PMID: 33276458 PMCID: PMC7730194 DOI: 10.3390/ijms21239186] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/29/2020] [Accepted: 11/29/2020] [Indexed: 12/14/2022] Open
Abstract
Age-dependent alterations in the proteostasis network are crucial in the progress of prevalent neurodegenerative diseases, such as Alzheimer’s, Parkinson’s, or amyotrophic lateral sclerosis, which are characterized by the presence of insoluble protein deposits in degenerating neurons. Because molecular chaperones deter misfolded protein aggregation, regulate functional phase separation, and even dissolve noxious aggregates, they are considered major sentinels impeding the molecular processes that lead to cell damage in the course of these diseases. Indeed, members of the chaperome, such as molecular chaperones and co-chaperones, are increasingly recognized as therapeutic targets for the development of treatments against degenerative proteinopathies. Chaperones must recognize diverse toxic clients of different orders (soluble proteins, biomolecular condensates, organized protein aggregates). It is therefore critical to understand the basis of the selective chaperone recognition to discern the mechanisms of action of chaperones in protein conformational diseases. This review aimed to define the selective interplay between chaperones and toxic client proteins and the basis for the protective role of these interactions. The presence and availability of chaperone recognition motifs in soluble proteins and in insoluble aggregates, both functional and pathogenic, are discussed. Finally, the formation of aberrant (pro-toxic) chaperone complexes will also be disclosed.
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Affiliation(s)
- Rubén Hervás
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA;
| | - Javier Oroz
- Rocasolano Institute for Physical Chemistry, Spanish National Research Council (IQFR-CSIC), Serrano 119, E-28006 Madrid, Spain
- Correspondence: ; Tel.: +34-915619400
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29
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Ghosh P, O'Neill BE, Li KC. Targeted Imaging Agent to HSP70 Induced In Vivo. Mol Imaging 2020; 19:1536012120942685. [PMID: 33216684 PMCID: PMC7682199 DOI: 10.1177/1536012120942685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Heat shock protein expression can be induced by heat shock making it possible to artificially modulate their levels noninvasively in vivo in a spatially and temporally controlled manner. Here, we report the use of the major heat shock protein 70 (HSP70) as an inducible target by using the small molecule deoxyspergualin (DSG) conjugated to the near-infrared fluorophore (Cy5.5). We demonstrate that heat induction in the form of localized hyperthermia of normal tissue in living mice results in sufficient HSP70 overexpression for detection with DSG-Cy5.5 conjugate. This effect is dependent on total energy delivered and reaches maximum fluorescence signal in 6 to 8 hours post heat induction and declines over a period of up to 24 hours. These results suggest that DSG-Cy5.5 agent accumulates in tissue with elevated HSP70 by heat.
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Affiliation(s)
- Pradip Ghosh
- Department of Neurology, UT Medical School, University of Texas Health Science Center, Houston, TX, USA
| | - Brian E O'Neill
- Department of Radiology, 167626The Methodist Hospital Research Institute, Houston, TX, USA
| | - King C Li
- Carle Illinois College of Medicine, 14589University of Illinois, Champaign, IL, USA
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30
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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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31
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Polidano J, Vankadari N, Price JT, Wilce JA. Detailed protocol for optimised expression and purification of functional monomeric human Heat Shock Factor 1. Protein Expr Purif 2020; 176:105722. [PMID: 32768454 DOI: 10.1016/j.pep.2020.105722] [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: 07/20/2020] [Revised: 07/30/2020] [Accepted: 07/30/2020] [Indexed: 11/16/2022]
Abstract
Heat Shock Factor 1 (HSF1) is the master regulator of the heat shock response, a universal survival mechanism throughout eukaryotic species used to buffer potentially lethal proteotoxic conditions. HSF1's function in vivo is regulated by several factors, including post translational modifications and elevated temperatures, whereupon it forms trimers to bind with heat shock elements in DNA. Unsurprisingly, HSF1 is also extremely sensitive to elevated temperatures in vitro, which poses specific technical challenges when producing HSF1 using a recombinant expression system. Although there are several useful publications which outline steps taken for HSF1 expression and purification, studies that describe specific strategies and detailed protocols to overcome HSF1 trimerisation and degradation are currently lacking. Herein, we have reported our detailed experimental protocol for the expression and purification of monomeric human HSF1 (HsHSF1) as a major species. We also propose a refined method of inducing HsHSF1 activation in vitro, that we consider more accurately mimics HsHSF1 activation in vivo and is therefore more physiologically relevant.
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Affiliation(s)
- Joseph Polidano
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia; Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Victoria, 3800, Australia; Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, St. Albans, VIC, Australia
| | - Naveen Vankadari
- Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Victoria, 3800, Australia
| | - John T Price
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia; Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Victoria, 3800, Australia; Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia; Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, St. Albans, VIC, Australia
| | - Jacqueline A Wilce
- Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Victoria, 3800, Australia.
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32
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Emerging roles of HSF1 in cancer: Cellular and molecular episodes. Biochim Biophys Acta Rev Cancer 2020; 1874:188390. [PMID: 32653364 DOI: 10.1016/j.bbcan.2020.188390] [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: 04/08/2020] [Revised: 06/28/2020] [Accepted: 07/04/2020] [Indexed: 12/16/2022]
Abstract
Heat shock factor 1 (HSF1) systematically guards proteome stability and proteostasis by regulating the expression of heat shock protein (HSP), thus rendering cancer cells addicted to HSF1. The non-canonical transcriptional programme driven by HSF1, which is distinct from the heat shock response (HSR), plays an indispensable role in the initiation, promotion and progression of cancer. Therefore, HSF1 is widely exploited as a potential therapeutic target in a broad spectrum of cancers. Various molecules and signals in the cell jointly regulate the activation and attenuation of HSF1. The high-level expression of HSF1 in tumours and its relationship with patient prognosis imply that HSF1 can be used as a biomarker for patient prognosis and a target for cancer treatment. In this review, we discuss the newly identified mechanisms of HSF1 activation and regulation, the diverse functions of HSF1 in tumourigenesis, and the feasibility of using HSF1 as a prognostic marker. Disrupting cancer cell proteostasis by targeting HSF1 represents a novel anti-cancer therapeutic strategy.
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Wang X, Zhang X, Qiu C, Yang N. STAT3 Contributes to Radioresistance in Cancer. Front Oncol 2020; 10:1120. [PMID: 32733808 PMCID: PMC7358404 DOI: 10.3389/fonc.2020.01120] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 06/04/2020] [Indexed: 12/14/2022] Open
Abstract
Radiotherapy has been used in the clinic for more than one century and it is recognized as one of the main methods in the treatment of malignant tumors. Signal Transducers and Activators of Transcription 3 (STAT3) is reported to be upregulated in many tumor types, and it is believed to be involved in the tumorigenesis, development and malignant behaviors of tumors. Previous studies also found that STAT3 contributes to chemo-resistance of various tumor types. Recently, many studies reported that STAT3 is involved in the response of tumor cells to radiotherapy. But until now, the role of the STAT3 in radioresistance has not been systematically demonstrated. In this study, we will review the radioresistance induced by STAT3 and relative solutions will be discussed.
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Affiliation(s)
- Xuehai Wang
- Department of Otolaryngology, Weihai Municipal Hospital, Shandong University, Weihai, China
| | - Xin Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Chen Qiu
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, China
| | - Ning Yang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
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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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35
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Kelly JW. Pharmacologic Approaches for Adapting Proteostasis in the Secretory Pathway to Ameliorate Protein Conformational Diseases. Cold Spring Harb Perspect Biol 2020; 12:a034108. [PMID: 31088828 PMCID: PMC7197434 DOI: 10.1101/cshperspect.a034108] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Maintenance of the proteome, ensuring the proper locations, proper conformations, appropriate concentrations, etc., is essential to preserve the health of an organism in the face of environmental insults, infectious diseases, and the challenges associated with aging. Maintaining the proteome is even more difficult in the background of inherited mutations that render a given protein and others handled by the same proteostasis machinery misfolding prone and/or aggregation prone. Maintenance of the proteome or maintaining proteostasis requires the orchestration of protein synthesis, folding, trafficking, and degradation by way of highly conserved, interacting, and competitive proteostasis pathways. Each subcellular compartment has a unique proteostasis network compromising common and specialized proteostasis maintenance pathways. Stress-responsive signaling pathways detect the misfolding and/or aggregation of proteins in specific subcellular compartments using stress sensors and respond by generating an active transcription factor. Subsequent transcriptional programs up-regulate proteostasis network capacity (i.e., ability to fold and degrade proteins in that compartment). Stress-responsive signaling pathways can also be linked by way of signaling cascades to nontranscriptional means to reestablish proteostasis (e.g., by translational attenuation). Proteostasis is also strongly influenced by the inherent kinetics and thermodynamics of the folding, misfolding, and aggregation of individual proteins, and these sequence-based attributes in combination with proteostasis network capacity together influence proteostasis. In this review, we will focus on the growing body of evidence that proteostasis deficits leading to human pathology can be reversed by pharmacologic adaptation of proteostasis network capacity through stress-responsive signaling pathway activation. The power of this approach will be exemplified by focusing on the ATF6 arm of the unfolded protein response stress responsive-signaling pathway that regulates proteostasis network capacity of the secretory pathway.
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Affiliation(s)
- Jeffery W Kelly
- Departments of Chemistry and Molecular Medicine; and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037
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36
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Dong J, Jiang Z, Ma G. Hsp90 inhibition aggravates adriamycin-induced podocyte injury through intrinsic apoptosis pathway. Exp Cell Res 2020; 390:111928. [PMID: 32156599 DOI: 10.1016/j.yexcr.2020.111928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 02/09/2020] [Accepted: 02/25/2020] [Indexed: 12/14/2022]
Abstract
Podocyte injury leads to impaired filtration barrier function of the kidney that underlies the pathophysiology of idiopathic nephrotic syndrome (INS), the most common NS occurring in children. The heat shock protein 90 (Hsp90) is involved in the regulation of apoptosis in a variety of cell types, however, little is known about its role in podocytes and whether it associated with NS. Here, we show that Hsp90 is upregulated in glomeruli podocytes from mice with adriamycin (ADR)-induced nephropathy, and that it is also upregulated in an immortalized podocyte cell line treated with ADR in vitro, together suggesting an association of Hsp90 upregulation in podocytes with NS pathogenesis. Functionally, Hsp90 inhibition with PU-H71 aggravates ADR-induced podocyte apoptosis and worsens the impairment of filtration barrier function. Mechanistically, Hsp90 inhibition with PU-H71 enhances the activation of intrinsic apoptotic pathway, and moreover, blockade of podocyte apoptosis with zVAD-fmk (aVAD), a pan-caspase inhibitor, abrogates effects of Hsp90 inhibition on filtration barrier function of ADR-treated podocytes, thus demonstrating that Hsp90 inhibition aggravates ADR-induced podocyte injury through intrinsic apoptosis pathway. In sum, this study reveals a detrimental role of Hsp90 inhibition in podocyte injury, which may offer it as a potential therapeutic target in NS therapy.
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Affiliation(s)
- Junyu Dong
- Department of Paediatrics, The First Affiliated Hospital of Henan University of Science & Technology, Luoyang, Henan, 471000, China
| | - Zhihong Jiang
- Department of Paediatrics, The First Affiliated Hospital of Henan University of Science & Technology, Luoyang, Henan, 471000, China.
| | - Guorui Ma
- Department of Paediatrics, The First Affiliated Hospital of Henan University of Science & Technology, Luoyang, Henan, 471000, China
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37
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HSP90 Interacts with the Fibronectin N-terminal Domains and Increases Matrix Formation. Cells 2020; 9:cells9020272. [PMID: 31979118 PMCID: PMC7072298 DOI: 10.3390/cells9020272] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/15/2020] [Accepted: 01/18/2020] [Indexed: 12/20/2022] Open
Abstract
Heat shock protein 90 (HSP90) is an evolutionarily conserved chaperone protein that controls the function and stability of a wide range of cellular client proteins. Fibronectin (FN) is an extracellular client protein of HSP90, and exogenous HSP90 or inhibitors of HSP90 alter the morphology of the extracellular matrix. Here, we further characterized the HSP90 and FN interaction. FN bound to the M domain of HSP90 and interacted with both the open and closed HSP90 conformations; and the interaction was reduced in the presence of sodium molybdate. HSP90 interacted with the N-terminal regions of FN, which are known to be important for matrix assembly. The highest affinity interaction was with the 30-kDa (heparin-binding) FN fragment, which also showed the greatest colocalization in cells and accommodated both HSP90 and heparin in the complex. The strength of interaction with HSP90 was influenced by the inherent stability of the FN fragments, together with the type of motif, where HSP90 preferentially bound the type-I FN repeat over the type-II repeat. Exogenous extracellular HSP90 led to increased incorporation of both full-length and 70-kDa fragments of FN into fibrils. Together, our data suggested that HSP90 may regulate FN matrix assembly through its interaction with N-terminal FN fragments.
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38
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Workman P. Reflections and Outlook on Targeting HSP90, HSP70 and HSF1 in Cancer: A Personal Perspective. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1243:163-179. [PMID: 32297218 DOI: 10.1007/978-3-030-40204-4_11] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This personal perspective focuses on small-molecule inhibitors of proteostasis networks in cancer-specifically the discovery and development of chemical probes and drugs acting on the molecular chaperones HSP90 and HSP70, and on the HSF1 stress pathway. Emphasis is on progress made and lessons learned and a future outlook is provided. Highly potent, selective HSP90 inhibitors have proved invaluable in exploring the role of this molecular chaperone family in biology and disease pathology. Clinical activity was observed, especially in non small cell lung cancer and HER2 positive breast cancer. Optimal use of HSP90 inhibitors in oncology will likely require development of creative combination strategies. HSP70 family members have proved technically harder to drug. However, recent progress has been made towards useful chemical tool compounds and these may signpost future clinical drug candidates. The HSF1 stress pathway is strongly validated as a target for cancer therapy. HSF1 itself is a ligandless transcription factor that is extremely challenging to drug directly. HSF1 pathway inhibitors have been identified mostly by phenotypic screening, including a series of bisamides from which a clinical candidate has been identified for treatment of ovarian cancer, multiple myeloma and potentially other cancers.
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Affiliation(s)
- Paul Workman
- CRUK Cancer Therapeutics Unit, The Institute of Cancer Research, London, UK.
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39
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A Bioinformatic Approach for the Identification of Molecular Determinants of Resistance/Sensitivity to Cancer Thermotherapy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4606219. [PMID: 31814876 PMCID: PMC6878812 DOI: 10.1155/2019/4606219] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/03/2019] [Indexed: 12/30/2022]
Abstract
Application of heat above 43°C and up to 47°C, the so-called “thermal ablation” range, leads to tumor cell destruction either by apoptosis or by necrosis. However, tumor cells have developed mechanisms of defense that render them thermoresistant. Of importance, the in situ application of heat for the treatment of localized solid tumors can also prime specific antitumor immunity. Herein, a bioinformatic approach was employed for the identification of molecular determinants implicated in thermoresistance and immunogenic cell death (ICD). To this end, both literature-derived (text mining) and microarray gene expression profile data were processed, followed by functional enrichment analysis. Two important functional gene modules were detected in hyperthermia resistance and ICD, the former including members of the heat shock protein (HSP) family of molecular chaperones and the latter including immune-related molecules, respectively. Of note, the molecules HSP90AA1 and HSPA4 were found common between thermoresistance and damage signaling molecules (damage-associated molecular patterns (DAMPs)) and ICD. In addition, the prognostic potential of HSP90AA1 and HSPA4 overexpression for cancer patients' overall survival was investigated. The results of this study could constitute the basis for the strategic development of more efficient and personalized therapeutic strategies against cancer by means of thermotherapy, by taking into consideration the genetic profile of each patient.
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40
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Ferreira LMR, Cunha-Oliveira T, Sobral MC, Abreu PL, Alpoim MC, Urbano AM. Impact of Carcinogenic Chromium on the Cellular Response to Proteotoxic Stress. Int J Mol Sci 2019; 20:ijms20194901. [PMID: 31623305 PMCID: PMC6801751 DOI: 10.3390/ijms20194901] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/22/2019] [Accepted: 09/30/2019] [Indexed: 12/22/2022] Open
Abstract
Worldwide, several million workers are employed in the various chromium (Cr) industries. These workers may suffer from a variety of adverse health effects produced by dusts, mists and fumes containing Cr in the hexavalent oxidation state, Cr(VI). Of major importance, occupational exposure to Cr(VI) compounds has been firmly associated with the development of lung cancer. Counterintuitively, Cr(VI) is mostly unreactive towards most biomolecules, including nucleic acids. However, its intracellular reduction produces several species that react extensively with biomolecules. The diversity and chemical versatility of these species add great complexity to the study of the molecular mechanisms underlying Cr(VI) toxicity and carcinogenicity. As a consequence, these mechanisms are still poorly understood, in spite of intensive research efforts. Here, we discuss the impact of Cr(VI) on the stress response—an intricate cellular system against proteotoxic stress which is increasingly viewed as playing a critical role in carcinogenesis. This discussion is preceded by information regarding applications, chemical properties and adverse health effects of Cr(VI). A summary of our current understanding of cancer initiation, promotion and progression is also provided, followed by a brief description of the stress response and its links to cancer and by an overview of potential molecular mechanisms of Cr(VI) carcinogenicity.
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Affiliation(s)
- Leonardo M R Ferreira
- Department of Surgery and Diabetes Center and Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA 94143, USA.
| | - Teresa Cunha-Oliveira
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, UC-Biotech, Biocant Park, 3060-197 Cantanhede, Portugal.
| | - Margarida C Sobral
- Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal.
| | - Patrícia L Abreu
- Instituto de Medicina Molecular João Lobo Antunes, Faculty of Medicine, University of Lisbon, 1649-028 Lisbon, Portugal.
| | - Maria Carmen Alpoim
- Department of Life Sciences, Center of Investigation in Environment, Genetics and Oncobiology (CIMAGO) and CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3000-456 Coimbra, Portugal.
| | - Ana M Urbano
- Department of Life Sciences, Molecular Physical Chemistry Research Unit and Center of Investigation in Environment, Genetics and Oncobiology (CIMAGO), University of Coimbra, 3000-456 Coimbra, Portugal.
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41
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Tan X, Awuah SG. A cell-based screening system for RNA polymerase I inhibitors. MEDCHEMCOMM 2019; 10:1765-1774. [PMID: 31803394 PMCID: PMC6844272 DOI: 10.1039/c9md00227h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 07/16/2019] [Indexed: 12/15/2022]
Abstract
RNA polymerase I (RNA Pol I) is a "factory" that orchestrates the transcription of ribosomal RNA for constructing ribosomes as a primary workshop for protein translation to sustain cell growth. The deregulation of RNA Pol I often causes uncontrolled cell proliferation, leading to cancer. Efficient and reliable methods are needed for the identification of selective inhibitors of RNA Pol I. Yeast (Saccharomyces cerevisiae) is eukaryotic and represents a valuable model system to study RNA Pol I, especially with the availability of the X-ray crystal structure of the yeast homologue of RNA Pol I, offering a structural basis to selectively target this transcriptional machinery. Herein, we developed a cell-based screening strategy by establishing a stable yeast cell line with a stably integrated human RNA Pol I promoter and ribosomal DNA. The model system was validated using the well-known RNA Pol I inhibitor CX-5461 by measuring transcribed human rRNA as readout. Virtual screening coupled with compound library screening using this cell line enabled the identification of a new candidate inhibitor of RNA Pol I, namely, cerivastatin sodium. Furthermore, we used growth and transcription activity assays to biologically evaluate the hit compound. Preliminary studies demonstrated antiproliferative effects of cerivastatin sodium against human cancer cells, namely, A2780 and H460 cell lines. These results implicated cerivastatin sodium as a selective RNA Pol I inhibitor worthy of further development together with potential as a targeted anticancer therapeutic.
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Affiliation(s)
- Xiao Tan
- Department of Chemistry , University of Kentucky , 505 Rose Street , Lexington , Kentucky 40506 , USA . ; Tel: +1 8593239561
| | - Samuel G Awuah
- Department of Chemistry , University of Kentucky , 505 Rose Street , Lexington , Kentucky 40506 , USA . ; Tel: +1 8593239561
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42
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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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Abstract
The stability and function of many oncogenic mutant proteins depend on heat shock protein 90 (HSP90). This unique activity has inspired the exploration of HSP90 as an anticancer target for over two decades. Unfortunately, while clinical trials of highly optimized HSP90 inhibitors have demonstrated modest benefit for patients with advanced cancers, most commonly stabilization of disease, no HSP90 inhibitor has demonstrated sufficient efficacy to achieve FDA approval to date. This review discusses potential reasons for the limited success of these agents and how our increasingly sophisticated understanding of HSP90 suggests alternative, potentially more effective strategies for targeting it to treat cancers. First, we focus on insights gained from model organisms that suggest a fundamental role for HSP90 in supporting the adaptability and heterogeneity of cancers, key factors underlying their ability to evolve and acquire drug resistance. Second, we examine how HSP90’s role in promoting the stability of mutant proteins might be targeted in genetically unstable tumor cells to reveal their aberrant, foreign proteome to the immune system. Both of these emerging aspects of HSP90 biology suggest that the most effective use of HSP90 inhibitors may not be at high doses with the intent to kill cancer cells, but rather in combination with other molecularly targeted therapies at modest, non-heat shock-inducing exposures that limit the adaptive capacity of cancers.
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Affiliation(s)
- Alex M. Jaeger
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Luke Whitesell
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
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Fernando TM, Marullo R, Pera Gresely B, Phillip JM, Yang SN, Lundell-Smith G, Torregroza I, Ahn H, Evans T, Győrffy B, Privé GG, Hirano M, Melnick AM, Cerchietti L. BCL6 Evolved to Enable Stress Tolerance in Vertebrates and Is Broadly Required by Cancer Cells to Adapt to Stress. Cancer Discov 2019; 9:662-679. [PMID: 30777872 DOI: 10.1158/2159-8290.cd-17-1444] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 11/19/2018] [Accepted: 02/13/2019] [Indexed: 11/16/2022]
Abstract
Several lines of evidence link the canonical oncogene BCL6 to stress response. Here we demonstrate that BCL6 evolved in vertebrates as a component of the HSF1-driven stress response, which has been co-opted by the immune system to support germinal center formation and may have been decisive in the convergent evolution of humoral immunity in jawless and jawed vertebrates. We find that the highly conserved BTB corepressor binding site of BCL6 mediates stress adaptation across vertebrates. We demonstrate that pan-cancer cells hijack this stress tolerance mechanism to aberrantly express BCL6. Targeting the BCL6 BTB domain in cancer cells induces apoptosis and increases susceptibility to repeated doses of cytotoxic therapy. The chemosensitization effect upon BCL6 BTB inhibition is dependent on the derepression of TOX, implicating modulation of DNA repair as a downstream mechanism. Collectively, these data suggest a form of adaptive nononcogene addiction rooted in the natural selection of BCL6 during vertebrate evolution. SIGNIFICANCE: We demonstrate that HSF1 drives BCL6 expression to enable stress tolerance in vertebrates. We identify an HSF1-BCL6-TOX stress axis that is required by cancer cells to tolerate exposure to cytotoxic agents and points toward BCL6-targeted therapy as a way to more effectively kill a wide variety of solid tumors.This article is highlighted in the In This Issue feature, p. 565.
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Affiliation(s)
- Tharu M Fernando
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York.,Department of Pharmacology, Weill Cornell Medicine, New York, New York
| | - Rossella Marullo
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York
| | - Benet Pera Gresely
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York
| | - Jude M Phillip
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York
| | - Shao Ning Yang
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York
| | | | | | - Haelee Ahn
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York
| | - Todd Evans
- Department of Surgery, Weill Cornell Medicine, New York, New York
| | - Balázs Győrffy
- MTA TTK Lendület Cancer Biomarker Research Group, Institute of Enzymology, Budapest, Hungary.,Semmelweis University 2nd Department of Pediatrics, Budapest, Hungary
| | - Gilbert G Privé
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Masayuki Hirano
- Emory Vaccine Center and Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia
| | - Ari M Melnick
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York. .,Department of Pharmacology, Weill Cornell Medicine, New York, New York
| | - Leandro Cerchietti
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York.
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Ciato D, Li R, Monteserin Garcia JL, Papst L, D'Annunzio S, Hristov M, Tichomirowa MA, Belaya Z, Rozhinskaya L, Buchfelder M, Theodoropoulou M, Paez-Pereda M, Stalla GK. Inhibition of Heat Shock Factor 1 Enhances Repressive Molecular Mechanisms on the POMC Promoter. Neuroendocrinology 2019; 109:362-373. [PMID: 30995664 DOI: 10.1159/000500200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/02/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Cushing's disease (CD) is caused by adrenocorticotropic hormone (ACTH)-secreting pituitary tumours. They express high levels of heat shock protein 90 and heat shock factor 1 (HSF1) in comparison to the normal tissue counterpart, indicating activated cellular stress. AIMS Our objectives were: (1) to correlate HSF1 expression with clinical features and hormonal/radiological findings of CD, and (2) to investigate the effects of HSF1 inhibition as a target for CD treatment. PATIENTS/METHODS We examined the expression of total and pSer326HSF1 (marker for its transcriptional activation) by Western blot on eight human CD tumours and compared to the HSF1 status of normal pituitary. We screened a cohort of 45 patients with CD for HSF1 by immunohistochemistry and correlated the HSF1 immunoreactivity score with the available clinical data. We evaluated the effects of HSF1 silencing with RNA interference and the HSF1 inhibitor KRIBB11 in AtT-20 cells and four primary cultures of human corticotroph tumours. RESULTS We show that HSF1 protein is highly expressed and transcriptionally active in CD tumours in comparison to normal pituitary. The immunoreactivity score for HSF1 did not correlate with the typical clinical features of the disease. HSF1 inhibition reduced proopiomelanocortin (Pomc) transcription in AtT-20 cells. The HSF1 inhibitor KRIBB11 suppressed ACTH synthesis from 75% of human CD tumours in primary cell culture. This inhibitory action on Pomc transcription was mediated by increased glucocorticoid receptor and suppressed Nurr77/Nurr1 and AP-1 transcriptional activities. CONCLUSIONS These data show that HSF1 regulates POMC transcription. Pharmacological targeting of HSF1 may be a promising treatment option for the control of excess ACTH secretion in CD.
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Affiliation(s)
- Denis Ciato
- Clinical Neuroendocrinology, Max Planck Institute of Psychiatry, Munich, Germany,
| | - Ran Li
- Clinical Neuroendocrinology, Max Planck Institute of Psychiatry, Munich, Germany
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | | | - Lilia Papst
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Sarah D'Annunzio
- Clinical Neuroendocrinology, Max Planck Institute of Psychiatry, Munich, Germany
- Department of Biology, University of Padua, Padua, Italy
| | - Michael Hristov
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Maria A Tichomirowa
- Service d'Endocrinologie, Centre Hospitalier du Nord, Ettelbruck, Luxembourg
| | - Zhanna Belaya
- The National Research Centre for Endocrinology, Moscow, Russian Federation
| | | | - Michael Buchfelder
- Neurochirurgische Klinik, Klinikum der Universität Erlangen, Erlangen, Germany
| | - Marily Theodoropoulou
- Medizinische Klinik und Poliklinik IV, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Marcelo Paez-Pereda
- Clinical Neuroendocrinology, Max Planck Institute of Psychiatry, Munich, Germany
| | - Günter Karl Stalla
- Clinical Neuroendocrinology, Max Planck Institute of Psychiatry, Munich, Germany
- Medizinische Klinik und Poliklinik IV, Ludwig-Maximilians-Universität München, Munich, Germany
- Medicover Neuroendocrinology, Munich, Germany
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Abreu PL, Ferreira LMR, Cunha-Oliveira T, Alpoim MC, Urbano AM. HSP90: A Key Player in Metal-Induced Carcinogenesis? HEAT SHOCK PROTEINS 2019. [DOI: 10.1007/978-3-030-23158-3_11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Alford BD, Brandman O. Quantification of Hsp90 availability reveals differential coupling to the heat shock response. J Cell Biol 2018; 217:3809-3816. [PMID: 30131327 PMCID: PMC6219726 DOI: 10.1083/jcb.201803127] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 07/22/2018] [Accepted: 08/10/2018] [Indexed: 11/22/2022] Open
Abstract
The heat shock response (HSR) is a protective gene expression program that is activated by conditions that cause proteotoxic stress. While it has been suggested that the availability of free chaperones regulates the HSR, chaperone availability and the HSR have never been precisely quantified in tandem under stress conditions. Thus, how the availability of chaperones changes in stress conditions and the extent to which these changes drive the HSR are unknown. In this study, we quantified Hsp90 chaperone availability and the HSR under multiple stressors. We show that Hsp90-dependent and -independent pathways both regulate the HSR, and the contribution of each pathway varies greatly depending on the stressor. Moreover, stressors that regulate the HSR independently of Hsp90 availability do so through the Hsp70 chaperone. Thus, the HSR responds to diverse defects in protein quality by monitoring the state of multiple chaperone systems independently.
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Affiliation(s)
- Brian D Alford
- Department of Biochemistry, Stanford University, Stanford, CA
| | - Onn Brandman
- Department of Biochemistry, Stanford University, Stanford, CA
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Björk JK, Ahonen I, Mirtti T, Erickson A, Rannikko A, Bützow A, Nordling S, Lundin J, Lundin M, Sistonen L, Nees M, Åkerfelt M. Increased HSF1 expression predicts shorter disease-specific survival of prostate cancer patients following radical prostatectomy. Oncotarget 2018; 9:31200-31213. [PMID: 30131848 PMCID: PMC6101287 DOI: 10.18632/oncotarget.25756] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/25/2018] [Indexed: 12/19/2022] Open
Abstract
Prostate cancer is a highly heterogeneous disease and the clinical outcome is varying. While current prognostic tools are regarded insufficient, there is a critical need for markers that would aid prognostication and patient risk-stratification. Heat shock transcription factor 1 (HSF1) is crucial for cellular homeostasis, but also a driver of oncogenesis. The clinical relevance of HSF1 in prostate cancer is, however, unknown. Here, we identified HSF1 as a potential biomarker in mRNA expression datasets on prostate cancer. Clinical validation was performed on tissue microarrays from independent cohorts: one constructed from radical prostatectomies from 478 patients with long term follow-up, and another comprising of regionally advanced to distant metastatic samples. Associations with clinical variables and disease outcomes were investigated. Increased nuclear HSF1 expression correlated with disease advancement and aggressiveness and was, independently from established clinicopathological variables, predictive of both early initiation of secondary therapy and poor disease-specific survival. In a joint model with the clinical Cancer of the Prostate Risk Assessment post-Surgical (CAPRA-S) score, nuclear HSF1 remained a predictive factor of shortened disease-specific survival. The results suggest that nuclear HSF1 expression could serve as a novel prognostic marker for patient risk-stratification on disease progression and survival after radical prostatectomy.
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Affiliation(s)
| | - Ilmari Ahonen
- Department of Mathematics and Statistics, University of Turku, Turku, Finland
| | - Tuomas Mirtti
- Department of Pathology, Medicum, University of Helsinki, Helsinki, Finland
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
- Department of Pathology, HUSLAB, Helsinki University Hospital, Helsinki, Finland
| | - Andrew Erickson
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
- Department of Pathology, HUSLAB, Helsinki University Hospital, Helsinki, Finland
| | - Antti Rannikko
- Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Anna Bützow
- Department of Pathology, Medicum, University of Helsinki, Helsinki, Finland
| | - Stig Nordling
- Department of Pathology, Medicum, University of Helsinki, Helsinki, Finland
| | - Johan Lundin
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
| | - Mikael Lundin
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
| | - Lea Sistonen
- Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Matthias Nees
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Malin Åkerfelt
- Institute of Biomedicine, University of Turku, Turku, Finland
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Oncogenic hijacking of the stress response machinery in T cell acute lymphoblastic leukemia. Nat Med 2018; 24:1157-1166. [PMID: 30038221 PMCID: PMC6082694 DOI: 10.1038/s41591-018-0105-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 04/12/2018] [Indexed: 12/13/2022]
Abstract
Cellular transformation is accompanied by extensive re-wiring of many biological processes leading to augmented levels of distinct types of cellular stress, including proteotoxic stress. Cancer cells critically depend on stress-relief pathways for their survival. However, the mechanisms underlying the transcriptional initiation and maintenance of the oncogenic stress response remain elusive. Here, we show that the expression of heat shock transcription factor 1 (HSF1) and the downstream mediators of the heat shock response is transcriptionally upregulated in T-cell acute lymphoblastic leukemia (T-ALL). Hsf1 ablation suppresses the growth of human T-ALL and eradicates leukemia in mouse models of T-ALL, while sparing normal hematopoiesis. HSF1 drives a compact transcriptional program and among the direct HSF1 targets, specific chaperones and co-chaperones mediate its critical role in T-ALL. Notably, we demonstrate that the central T-ALL oncogene NOTCH1 hijacks the cellular stress response machinery by inducing the expression of HSF1 and its downstream effectors. The NOTCH1 signaling status controls the levels of chaperone/co-chaperone complexes and predicts the response of T-ALL patient samples to HSP90 inhibition. Our data demonstrate an integral crosstalk between mediators of oncogene and non-oncogene addiction and reveal critical nodes of the heat shock response pathway that can be targeted therapeutically.
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50
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Rojo de la Vega M, Chapman E, Zhang DD. NRF2 and the Hallmarks of Cancer. Cancer Cell 2018; 34:21-43. [PMID: 29731393 PMCID: PMC6039250 DOI: 10.1016/j.ccell.2018.03.022] [Citation(s) in RCA: 1012] [Impact Index Per Article: 168.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/11/2018] [Accepted: 03/19/2018] [Indexed: 12/20/2022]
Abstract
The transcription factor NRF2 is the master regulator of the cellular antioxidant response. Though recognized originally as a target of chemopreventive compounds that help prevent cancer and other maladies, accumulating evidence has established the NRF2 pathway as a driver of cancer progression, metastasis, and resistance to therapy. Recent studies have identified new functions for NRF2 in the regulation of metabolism and other essential cellular functions, establishing NRF2 as a truly pleiotropic transcription factor. In this review, we explore the roles of NRF2 in the hallmarks of cancer, indicating both tumor suppressive and tumor-promoting effects.
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Affiliation(s)
- Montserrat Rojo de la Vega
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85721, USA
| | - Eli Chapman
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85721, USA
| | - Donna D Zhang
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85721, USA; University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85721, USA.
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