1
|
Troike KM, Wang SZ, Silver DJ, Lee J, Mulkearns-Hubert EE, Hajdari N, Ghosh PK, Kay KE, Beilis JL, Mitchell SE, Bishop CW, Hong ES, Artomov M, Hubert CG, Rajappa P, Connor JR, Fox PL, Kristensen BW, Lathia JD. Homeostatic iron regulatory protein drives glioblastoma growth via tumor cell-intrinsic and sex-specific responses. Neurooncol Adv 2024; 6:vdad154. [PMID: 38239626 PMCID: PMC10794878 DOI: 10.1093/noajnl/vdad154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2024] Open
Abstract
Background Glioblastoma (GBM) displays alterations in iron that drive proliferation and tumor growth. Iron regulation is complex and involves many regulatory mechanisms, including the homeostatic iron regulator (HFE) gene, which encodes the homeostatic iron regulatory protein. While HFE is upregulated in GBM and correlates with poor survival outcomes, the function of HFE in GBM remains unclear. Methods We interrogated the impact of cell-intrinsic Hfe expression on proliferation and survival of intracranially implanted animals through genetic gain- and loss-of-function approaches in syngeneic mouse glioma models, along with in vivo immune assessments. We also determined the expression of iron-associated genes and their relationship to survival in GBM using public data sets and used transcriptional profiling to identify differentially expressed pathways in control compared to Hfe-knockdown cells. Results Overexpression of Hfe accelerated GBM proliferation and reduced animal survival, whereas suppression of Hfe induced apoptotic cell death and extended survival, which was more pronounced in females and associated with attenuation of natural killer cells and CD8+ T cell activity. Analysis of iron gene signatures in Hfe-knockdown cells revealed alterations in the expression of several iron-associated genes, suggesting global disruption of intracellular iron homeostasis. Further analysis of differentially expressed pathways revealed oxidative stress as the top pathway upregulated following Hfe loss. Hfe knockdown indeed resulted in enhanced 55Fe uptake and generation of reactive oxygen species. Conclusions These findings reveal an essential function for HFE in GBM cell growth and survival, as well as a sex-specific interaction with the immune response.
Collapse
Affiliation(s)
- Katie M Troike
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Molecular Medicine, Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Sabrina Z Wang
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Medical Scientist Training Program, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Daniel J Silver
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
| | - Juyeun Lee
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Erin E Mulkearns-Hubert
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Nicole Hajdari
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Prabar K Ghosh
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Kristen E Kay
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Molecular Medicine, Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Julia L Beilis
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Sofia E Mitchell
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Christopher W Bishop
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ellen S Hong
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Medical Scientist Training Program, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Mykyta Artomov
- Institute for Genomic Medicine, Nationwide Children’s Hospital, Columbus, Ohio, USA
- Department of Pediatrics, The Ohio State Wexner Medical Center, Columbus, Ohio, USA
| | - Christopher G Hubert
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Biochemistry, Case Western Reserve University, Cleveland, Ohio, USA
| | - Prajwal Rajappa
- Institute for Genomic Medicine, Nationwide Children’s Hospital, Columbus, Ohio, USA
- Department of Neurological Surgery, The Ohio State Wexner Medical Center, Columbus, Ohio, USA
| | - James R Connor
- Department of Neurosurgery, Penn State Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Paul L Fox
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
| | - Bjarne W Kristensen
- Department of Clinical Medicine, Biotech Research and Innovation Center (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Justin D Lathia
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Molecular Medicine, Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| |
Collapse
|
2
|
Kotian N, Troike KM, Curran KN, Lathia JD, McDonald JA. A Drosophila RNAi screen reveals conserved glioblastoma-related adhesion genes that regulate collective cell migration. G3 Genes|Genomes|Genetics 2022; 12:6388037. [PMID: 34849760 PMCID: PMC8728034 DOI: 10.1093/g3journal/jkab356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/06/2021] [Indexed: 11/14/2022]
Abstract
Abstract
Migrating cell collectives are key to embryonic development but also contribute to invasion and metastasis of a variety of cancers. Cell collectives can invade deep into tissues, leading to tumor progression and resistance to therapies. Collective cell invasion is also observed in the lethal brain tumor glioblastoma (GBM), which infiltrates the surrounding brain parenchyma leading to tumor growth and poor patient outcomes. Drosophila border cells, which migrate as a small cell cluster in the developing ovary, are a well-studied and genetically accessible model used to identify general mechanisms that control collective cell migration within native tissue environments. Most cell collectives remain cohesive through a variety of cell–cell adhesion proteins during their migration through tissues and organs. In this study, we first identified cell adhesion, cell matrix, cell junction, and associated regulatory genes that are expressed in human brain tumors. We performed RNAi knockdown of the Drosophila orthologs in border cells to evaluate if migration and/or cohesion of the cluster was impaired. From this screen, we identified eight adhesion-related genes that disrupted border cell collective migration upon RNAi knockdown. Bioinformatics analyses further demonstrated that subsets of the orthologous genes were elevated in the margin and invasive edge of human GBM patient tumors. These data together show that conserved cell adhesion and adhesion regulatory proteins with potential roles in tumor invasion also modulate collective cell migration. This dual screening approach for adhesion genes linked to GBM and border cell migration thus may reveal conserved mechanisms that drive collective tumor cell invasion.
Collapse
Affiliation(s)
- Nirupama Kotian
- Division of Biology, Kansas State University, Manhattan, KS 66506, USA
| | - Katie M Troike
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Kristen N Curran
- Division of Biology, Kansas State University, Manhattan, KS 66506, USA
| | - Justin D Lathia
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | | |
Collapse
|
3
|
Shenoy G, Troike KM, Kuhn M, Webb BS, Snyder A, Khunsriraksakul C, Lathia J, Wang HG, Proctor E, Connor J. TAMI-42. THE ROLE OF HFE AND IRON IN CELL ADHESION AND MIGRATION IN GLIOBLASTOMA. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab196.825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Glioblastoma (GBM) remains one of the most difficult to treat malignancies facing modern medicine. The strong migratory and invasive capacity of GBM cells allows for diffuse invasion into neighboring healthy brain which presents a significant hurdle for complete surgical resection of these tumors. Unsurprisingly, even after receiving maximal surgical resection, radiation and chemotherapy, the majority of GBM patients end up with recurrent disease. Increased expression levels of the homeostatic iron regulator gene (HFE) in brain tumors such as GBM have been associated with poorer outcomes. In order to better understand how HFE expression impacts the adhesive and migratory capacity of GBM, we utilized syngeneic mouse glioma models (KR158, CT2A) that have been transfected to either over-express or under-express HFE. We observed that knocking down HFE in the KR158 model resulted in significantly decreased migratory capacity as well as decreased adhesion to fibronectin and artificial basement membrane. Likewise, overexpressing HFE in a CT2A model resulted in increased adhesion to fibronectin or artificial basement membrane. Since HFE is known to regulate iron uptake, we studied how modulating the iron status of GBM cells impacted their ability to migrate and adhere. We found that increasing the iron pool of these mouse glioma models by exposure to exogenous iron compounds decreased migratory capacity. To better understand mechanistically how HFE and iron status impacted migration and adhesion, we probed how expression of integrins and their downstream signaling molecules, the Rho GTPases were altered in response to iron. We found that exposure to iron decreased levels of the Rho GTPases Cdc42 and RhoA. Furthermore, cells that overexpressed HFE were found to have increased expression of integrin β1 and integrin α5 suggesting that HFE and iron may impact integrins and their downstream signaling pathways to alter migration of GBM cells.
Collapse
Affiliation(s)
| | - Katie M Troike
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | | | | | | | - Justin Lathia
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | | | | |
Collapse
|
4
|
Silver DJ, Roversi G, Bithi N, Wang S, Troike KM, Neumann CK, Ahuja G, Reizes O, Brown JM, Hine C, Lathia J. STEM-11. HYDROGEN SULFIDE FUNCTIONS AS A TUMOR SUPPRESSION IN GLIOBLASTOMA. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab196.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Glioblastoma (GBM) cancer stem cells (CSCs) respond to a variety of stimuli within their immediate surroundings. However, little is known about the lifestyle factors that alter CSC enrichment and function within the tumor microenvironment (TME). To examine the consequences of diet-induced obesity on the progression of GBM, we interrogated tumor growth using patient-derived and syngeneic GBM models implanted into the brains of mice fed either an obesogenic high-fat diet (HFD) or a low-fat, control diet. HFD consumption resulted in an accelerated disease trajectory, presenting significantly shortened overall survival. HFD reshaped the TME altering the lipid landscape, enhancing the CSC phenotype, stimulating tumor cell proliferation, and protecting from necrotic cell death. Similar results were not observed in metabolically obese, leptin-deficient (ob/ob) mice. We simultaneously identified a potent suppression of the gasotransmitter, hydrogen sulfide (H2S). H2S functions principally through protein S-sulfhydration and regulates multiple programs including bioenergetics, metabolism, and immune response. Inhibition of H2S increased tumor cell proliferation and chemotherapy resistance, whereas treatment with H2S donors reduced tumor cell fitness in vitro and attenuated GBM growth in vivo. Exogenous treatment with H2S donors also rescued the lipid-mediated increase in tumor cell proliferation. As H2S exerts its action though protein S-sulfhydration, we confirmed that HFD-fed mice, which experienced decreased H2S synthesis, presented a severely depleted S-sulfhydrated protein landscape. Loss of this post-translational modification was confirmed in GBM patient tissues compared to age- and sex-matched controls. Taken together, our findings provide evidence that H2S functions as a tumor suppressor in GBM. Our observations highlight a new mechanism for tumor growth dynamics that can be leveraged for new therapeutic strategies focused on boosting H2S. Finally, our findings indicate that lifestyle factors can have pleiotropic effects on GBM progression through concomitant mechanisms involving tumor metabolism, modifications to the TME, and regulation over the CSC phenotype.
Collapse
Affiliation(s)
- Daniel J Silver
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | - Nazmin Bithi
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Sabrina Wang
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Katie M Troike
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | - Grace Ahuja
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Ofer Reizes
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - J Mark Brown
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | - Justin Lathia
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| |
Collapse
|
5
|
Troike KM, Mulkearns-Hubert EE, Silver DJ, Connor J, Lathia J. CBIO-06. CELL INTRINSIC HFE DRIVES SEX-SPECIFIC GLIOBLASTOMA GROWTH. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab196.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Iron is an essential element required for a number of cellular processes and can contribute to malignant transformation and tumor expansion. In glioblastoma (GBM), tumor cells have been shown to modulate expression of iron-associated proteins to enhance iron uptake from the surrounding microenvironment, driving proliferation and tumor growth. The homeostatic iron regulatory (HFE) gene encodes a transmembrane glycoprotein that aids in iron homeostasis by modulating iron uptake and release. HFE is upregulated in GBM tumors compared to non-tumor brain and expression of HFE increases with tumor grade. Furthermore, HFE mRNA expression is associated with significantly reduced survival specifically in female patients with GBM. However, it is unclear how HFE impacts sex-specific GBM growth. To interrogate the underlying mechanism of HFE-mediated sex differences, we employed genetic loss and gain of function approaches using syngeneic mouse glioma models. We observed significant alterations in the expression of several iron-associated genes with Hfe knockdown or overexpression, suggesting global disruption of iron homeostasis. We found that knockdown of Hfe decreased cell number and increased apoptosis in vitro and led to a significant impairment of tumor growth in vivo, with a more pronounced effect seen in female mice. Conversely, overexpression of Hfe increased cell number and significantly decreased survival only in female animals. These findings support the hypothesis that Hfe is a critical regulator of cellular iron status and contributes to tumor aggression in a sex-dependent manner. These data also suggest an unexplored link between cell intrinsic iron signaling and sex-specific microenvironmental and immune responses, which is the focus of ongoing studies.
Collapse
Affiliation(s)
- Katie M Troike
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | - Daniel J Silver
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | - Justin Lathia
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| |
Collapse
|
6
|
Troike KM, Acanda de la Rocha AM, Alban TJ, Grabowski MM, Otvos B, Cioffi G, Waite KA, Barnholtz Sloan JS, Lathia JD, Guilarte TR, Azzam DJ. The Translocator Protein ( TSPO) Genetic Polymorphism A147T Is Associated with Worse Survival in Male Glioblastoma Patients. Cancers (Basel) 2021; 13:cancers13184525. [PMID: 34572751 PMCID: PMC8471762 DOI: 10.3390/cancers13184525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/27/2021] [Accepted: 09/02/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary The translocator protein 18 kDa (TSPO) gene is highly expressed in glioblastoma (GBM), the most common primary malignant brain tumor, which remains one of the most difficult tumors to treat. TSPO is located in the outer mitochondrial membrane and binds cholesterol through its C-terminal domain. One frequent single-nucleotide polymorphism (SNP) rs6971, which changes the alanine 147 into threonine (Ala147Thr), has been found in the C-terminal domain of the TSPO region and dramatically alters the affinity with which TSPO binds drug ligands. However, the potential association between the TSPO genetic variants and GBM clinical outcomes is not known. Here, we evaluated the effects of the Ala147Thr SNP localized in this TSPO region on biological, sex-specific, overall, and progression-free GBM survival. Our findings suggest an association between the TSPO rs6971 variant and adverse outcomes in male GBM patients but not in females. These findings also suggest that the TSPO rs6971 SNP could be used as a prognostic marker of survival in GBM patients. Abstract Glioblastoma (GBM) is the most common primary brain tumor in adults, with few available therapies and a five-year survival rate of 7.2%. Hence, strategies for improving GBM prognosis are urgently needed. The translocator protein 18kDa (TSPO) plays crucial roles in essential mitochondria-based physiological processes and is a validated biomarker of neuroinflammation, which is implicated in GBM progression. The TSPO gene has a germline single nucleotide polymorphism, rs6971, which is the most common SNP in the Caucasian population. High TSPO gene expression is associated with reduced survival in GBM patients; however, the relation between the most frequent TSPO genetic variant and GBM pathogenesis is not known. The present study retrospectively analyzed the correlation of the TSPO polymorphic variant rs6971 with overall and progression-free survival in GBM patients using three independent cohorts. TSPO rs6971 polymorphism was significantly associated with shorter overall survival and progression-free survival in male GBM patients but not in females in one large cohort of 441 patients. We observed similar trends in two other independent cohorts. These observations suggest that the TSPO rs6971 polymorphism could be a significant predictor of poor prognosis in GBM, with a potential for use as a prognosis biomarker in GBM patients. These results reveal for the first time a biological sex-specific relation between rs6971 TSPO polymorphism and GBM.
Collapse
Affiliation(s)
- Katie M. Troike
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (K.M.T.); (T.J.A.); (M.M.G.); (B.O.); (J.D.L.)
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Arlet M. Acanda de la Rocha
- Department of Environmental Health Sciences, Robert Stempel College of Public Health & Social Work, Florida International University, Miami, FL 33199, USA;
| | - Tyler J. Alban
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (K.M.T.); (T.J.A.); (M.M.G.); (B.O.); (J.D.L.)
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Matthew M. Grabowski
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (K.M.T.); (T.J.A.); (M.M.G.); (B.O.); (J.D.L.)
- Department of Neurosurgery, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Balint Otvos
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (K.M.T.); (T.J.A.); (M.M.G.); (B.O.); (J.D.L.)
- Department of Neurosurgery, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Gino Cioffi
- National Cancer Institute, Division of Cancer Epidemiology and Genetics, Trans-Divisional Research Program, Bethesda, MD 20892, USA; (G.C.); (K.A.W.); (J.S.B.S.)
| | - Kristin A. Waite
- National Cancer Institute, Division of Cancer Epidemiology and Genetics, Trans-Divisional Research Program, Bethesda, MD 20892, USA; (G.C.); (K.A.W.); (J.S.B.S.)
| | - Jill S. Barnholtz Sloan
- National Cancer Institute, Division of Cancer Epidemiology and Genetics, Trans-Divisional Research Program, Bethesda, MD 20892, USA; (G.C.); (K.A.W.); (J.S.B.S.)
- National Cancer Institute, Center for Biomedical Informatics and Information Technology, Bethesda, MD 20892, USA
| | - Justin D. Lathia
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (K.M.T.); (T.J.A.); (M.M.G.); (B.O.); (J.D.L.)
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
- Case Comprehensive Cancer Center, School of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Tomás R. Guilarte
- Department of Environmental Health Sciences, Robert Stempel College of Public Health & Social Work, Florida International University, Miami, FL 33199, USA;
- Brain, Behavior & the Environment Program, Robert Stempel College of Public Health & Social Work, Florida International University, Miami, FL 33199, USA
- Correspondence: (T.R.G.); (D.J.A.)
| | - Diana J. Azzam
- Department of Environmental Health Sciences, Robert Stempel College of Public Health & Social Work, Florida International University, Miami, FL 33199, USA;
- Correspondence: (T.R.G.); (D.J.A.)
| |
Collapse
|
7
|
Silver DJ, Roversi GA, Bithi N, Wang SZ, Troike KM, Neumann CK, Ahuja GK, Reizes O, Brown JM, Hine C, Lathia JD. Severe consequences of a high-lipid diet include hydrogen sulfide dysfunction and enhanced aggression in glioblastoma. J Clin Invest 2021; 131:138276. [PMID: 34255747 PMCID: PMC8409594 DOI: 10.1172/jci138276] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 07/08/2021] [Indexed: 12/26/2022] Open
Abstract
Glioblastoma (GBM) remains among the deadliest of human malignancies, and the emergence of the cancer stem cell (CSC) phenotype represents a major challenge to durable treatment response. Because the environmental and lifestyle factors that impact CSC populations are not clear, we sought to understand the consequences of diet on CSC enrichment. We evaluated disease progression in mice fed an obesity-inducing high-fat diet (HFD) versus a low-fat, control diet. HFD resulted in hyper-aggressive disease accompanied by CSC enrichment and shortened survival. HFD drove intracerebral accumulation of saturated fats, which inhibited the production of the cysteine metabolite and gasotransmitter, hydrogen sulfide (H2S). H2S functions principally through protein S-sulfhydration and regulates multiple programs including bioenergetics and metabolism. Inhibition of H2S increased proliferation and chemotherapy resistance, whereas treatment with H2S donors led to death of cultured GBM cells and stasis of GBM tumors in vivo. Syngeneic GBM models and GBM patient specimens present an overall reduction in protein S-sulfhydration, primarily associated with proteins regulating cellular metabolism. These findings provide clear evidence that diet modifiable H2S signaling serves to suppress GBM by restricting metabolic fitness, while its loss triggers CSC enrichment and disease acceleration. Interventions augmenting H2S bioavailability concurrent with GBM standard of care may improve outcomes for GBM patients.
Collapse
Affiliation(s)
- Daniel J. Silver
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
| | - Gustavo A. Roversi
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Nazmin Bithi
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Sabrina Z. Wang
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Medical Scientist Training Program, Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
| | - Katie M. Troike
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Chase K.A. Neumann
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Grace K. Ahuja
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Ofer Reizes
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - J. Mark Brown
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Christopher Hine
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Justin D. Lathia
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
| |
Collapse
|
8
|
Silver DJ, Roversi GA, Bithi N, Neumann CKA, Troike KM, Ahuja GK, Reizes O, Brown JM, Hine C, Lathia JD. ETMM-01. CANCER STEM CELL ENRICHMENT AND METABOLIC SUBSTRATE ADAPTABILITY ARE DRIVEN BY HYDROGEN SULFIDE SUPPRESSION IN GLIOBLASTOMA. Neurooncol Adv 2021. [PMCID: PMC7992216 DOI: 10.1093/noajnl/vdab024.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Glioblastoma (GBM) remains among the deadliest of human malignancies. The emergence of the cancer stem cell (CSC) phenotype represents a major challenge to disease management and durable treatment response. The extrinsic, environmental, and lifestyle factors that result in CSC enrichment are not well understood. The CSC state endows cells with a fluid metabolic profile, enabling the utilization of multiple nutrient sources. Therefore, to test the impact of diet on CSC enrichment, we evaluated disease progression in tumor-bearing mice fed an obesity-inducing high-fat diet (HFD) versus an energy-balanced, low-fat control diet. HFD consumption resulted in hyper-aggressive disease that was accompanied by CSC enrichment and shortened survival. HFD consumption also drove intracerebral accumulation of saturated fats, which in turn inhibited the production and signaling of the gasotransmitter hydrogen sulfide (H2S). H2S is an endogenously produced bio-active metabolite derived from sulfur amino acid catabolism. It functions principally through protein S-sulfhydration and regulates a variety of programs including mitochondrial bioenergetics and cellular metabolism. Inhibition of H2S synthesis resulted in increased proliferation and chemotherapy resistance, whereas treatment with H2S donors led to cytotoxicity and death of cultured GBM cells. Compared to non-cancerous controls, patient GBM specimens were reduced in overall protein S-sulfhydration, which was primarily lost from proteins regulating cellular metabolism. These findings support the hypothesis that diet-regulated H2S signaling serves to suppress GBM by restricting metabolic adaptability, while its loss triggers CSC enrichment and disease acceleration. Interventions augmenting H2S bioavailability concurrent with GBM standard of care may improve outcomes for GBM patients.
Collapse
Affiliation(s)
- Daniel J Silver
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Cleveland, OH, USA
| | | | - Nazmin Bithi
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | - Katie M Troike
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Grace K Ahuja
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Ofer Reizes
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Cleveland, OH, USA
| | - J Mark Brown
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Cleveland, OH, USA
| | - Christopher Hine
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Cleveland, OH, USA
| | - Justin D Lathia
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Cleveland, OH, USA
| |
Collapse
|
9
|
Abstract
Increasing prevalence of obesity and obesity-related conditions worldwide has necessitated a more thorough understanding of adipose tissue (AT) and expanded the scope of research in this field. AT is now understood to be far more complex and dynamic than previously thought, which has also fueled research to reevaluate how hormones, such as growth hormone (GH), alter the tissue. In this review, we will introduce properties of AT important for understanding how GH alters the tissue, such as anatomical location of depots and adipokine output. We will provide an overview of GH structure and function and define several human conditions and cognate mouse lines with extremes in GH action that have helped shape our understanding of GH and AT. A detailed discussion of the GH/AT relationship will be included that addresses adipokine production, immune cell populations, lipid metabolism, senescence, differentiation, and fibrosis, as well as brown AT and beiging of white AT. A brief overview of how GH levels are altered in an obese state, and the efficacy of GH as a therapeutic option to manage obesity will be given. As we will reveal, the effects of GH on AT are numerous, dynamic and depot-dependent. © 2017 American Physiological Society. Compr Physiol 7:819-840, 2017.
Collapse
Affiliation(s)
- Katie M Troike
- The Diabetes Institute at Ohio University, 108 Konneker Research Labs, Ohio University, Athens, Ohio, USA.,School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, Athens, Ohio, USA
| | - Brooke E Henry
- The Diabetes Institute at Ohio University, 108 Konneker Research Labs, Ohio University, Athens, Ohio, USA.,School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, Athens, Ohio, USA
| | - Elizabeth A Jensen
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio, USA.,Edison Biotechnology Institute, Konneker Research Labs, Ohio University, Athens, Ohio, USA
| | - Jonathan A Young
- Department of Biological Sciences, College of Arts and Sciences, Ohio University, Athens, Ohio, USA.,Edison Biotechnology Institute, Konneker Research Labs, Ohio University, Athens, Ohio, USA
| | - Edward O List
- The Diabetes Institute at Ohio University, 108 Konneker Research Labs, Ohio University, Athens, Ohio, USA.,Edison Biotechnology Institute, Konneker Research Labs, Ohio University, Athens, Ohio, USA
| | - John J Kopchick
- The Diabetes Institute at Ohio University, 108 Konneker Research Labs, Ohio University, Athens, Ohio, USA.,Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio, USA.,Edison Biotechnology Institute, Konneker Research Labs, Ohio University, Athens, Ohio, USA
| | - Darlene E Berryman
- The Diabetes Institute at Ohio University, 108 Konneker Research Labs, Ohio University, Athens, Ohio, USA.,Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio, USA
| |
Collapse
|
10
|
Sackmann-Sala L, Berryman DE, Lubbers ER, Zhang H, Vesel CB, Troike KM, Gosney ES, List EO, Kopchick JJ. Age-related and depot-specific changes in white adipose tissue of growth hormone receptor-null mice. J Gerontol A Biol Sci Med Sci 2013; 69:34-43. [PMID: 23873966 DOI: 10.1093/gerona/glt110] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Growth hormone receptor-null (GHR(-/-)) mice are dwarf, insulin sensitive, and long-lived in spite of increased adiposity. However, their adiposity is not uniform, with select white adipose tissue (WAT) depots enlarged. To study WAT depot-specific effects on insulin sensitivity and life span, we analyzed individual WAT depots of 12- and 24-month-old GHR(-) (/-) and wild-type (WT) mice, as well as their plasma levels of selected hormones. Adipocyte sizes and plasma insulin, leptin, and adiponectin levels decreased with age in both GHR(-) (/-) and WT mice. Two-dimensional gel electrophoresis proteomes of WAT depots were similar among groups, but several proteins involved in endocytosis and/or cytoskeletal organization (Ehd2, S100A10, actin), anticoagulation (S100A10, annexin A5), and age-related conditions (alpha2-macroglobulin, apolipoprotein A-I, transthyretin) showed significant differences between genotypes. Because Ehd2 may regulate endocytosis of Glut4, we measured Glut4 levels in the WAT depots of GHR(-) (/-) and WT mice. Inguinal WAT of 12-month-old GHR(-) (/-) mice displayed lower levels of Glut4 than WT. Overall, the protein changes detected in this study offer new insights into possible mechanisms contributing to enhanced insulin sensitivity and extended life span in GHR(-) (/-) mice.
Collapse
Affiliation(s)
- Lucila Sackmann-Sala
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701.
| | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Sackmann-Sala L, Berryman DE, Lubbers ER, Vesel CB, Troike KM, List EO, Munn RD, Ikeno Y, Kopchick JJ. Decreased insulin sensitivity and increased oxidative damage in wasting adipose tissue depots of wild-type mice. Age (Dordr) 2012; 34:1225-37. [PMID: 21953241 PMCID: PMC3448990 DOI: 10.1007/s11357-011-9304-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Accepted: 08/19/2011] [Indexed: 05/08/2023]
Abstract
Unintentional weight loss (wasting) in the elderly is a major health concern as it leads to increased mortality. Several studies have focused on muscle loss, but little is known about the mechanisms giving rise to loss of fat mass at old ages. To investigate potential mechanisms, white adipose tissue (WAT) characteristics and proteomic profiles were compared between adult (10-12-month-old) and aged (22-24-month-old) wild-type mice. Four individual WAT depots were analyzed to account for possible depot-specific differences. Proteomic profiles of WAT depots, along with body weights and compositions, plasma levels of insulin, leptin and adiponectin, insulin tolerance, adipocyte sizes, and products of oxidative damage in each WAT depot were determined. We found that lean mass remained constant while fat mass and insulin tolerance were decreased in old age, as were adipocyte sizes in the WAT depots. Proteomic results showed increased levels of enolase, pyruvate dehydrogenase E1β, NAD(+)-dependent isocitrate dehydrogenase α, and ATP synthase subunit β, and decreased levels of carbonic anhydrase 3 in WAT of aged mice. These data suggest increased aerobic glucose oxidation in wasting WAT, consistent with decreased insulin signaling. Also, Cu/Zn superoxide dismutase and two chaperones were increased in aged WAT depots, indicating higher stress resistance. In agreement, lipid peroxidation (HNE-His adducts) increased in old age, although protein oxidation (carbonyl groups) showed no increase. In conclusion, features of wasting WAT were similar in the four depots, including decreased adipocyte sizes and alterations in protein expression profiles that indicated decreased insulin sensitivity and increased lipid peroxidation.
Collapse
Affiliation(s)
- Lucila Sackmann-Sala
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
- Department of Biological Sciences, College of Arts and Sciences, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
- Molecular and Cellular Biology Program, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
| | - Darlene E. Berryman
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
- Molecular and Cellular Biology Program, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
- School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
| | - Ellen R. Lubbers
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
| | - Clare B. Vesel
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
| | - Katie M. Troike
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
| | - Edward O. List
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
| | - Rachel D. Munn
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
| | - Yuji Ikeno
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, 15355 Lambda Drive, San Antonio, TX 78245 USA
| | - John J. Kopchick
- Edison Biotechnology Institute, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
- Molecular and Cellular Biology Program, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
- Department of Biomedical Sciences, College of Osteopathic Medicine, Ohio University, 1 Water Tower Dr., The Ridges, Athens, OH 45701 USA
| |
Collapse
|