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Westphal D, Meinhardt M, Grützmann K, Schöne L, Steininger J, Neuhaus LT, Wiegel M, Schrimpf D, Aust DE, Schröck E, Baretton GB, Beissert S, Juratli TA, Schackert GG, Gravemeyer J, Becker JC, von Deimling A, Koelsche C, Klink B, Meier F, Schulz A, Muders MH, Seifert M. Identification of Epigenetically Regulated Genes Distinguishing Intracranial from Extracranial Melanoma Metastases. J Invest Dermatol 2023; 143:1233-1245.e17. [PMID: 36716920 DOI: 10.1016/j.jid.2023.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 12/13/2022] [Accepted: 01/09/2023] [Indexed: 01/29/2023]
Abstract
Despite remarkable advances in treating patients with metastatic melanoma, the management of melanoma brain metastases remains challenging. Recent evidence suggests that epigenetic reprogramming is an important mechanism for the adaptation of melanoma cells to the brain environment. In this study, the methylomes and transcriptomes of a cohort of matched melanoma metastases were evaluated by integrated omics data analysis. The identified 38 candidate genes displayed distinct promoter methylation and corresponding gene expression changes in intracranial compared with extracranial metastases. The 11 most promising genes were validated on protein level in both tumor and surrounding normal tissue using immunohistochemistry. In accordance with the underlying promoter methylation and gene expression changes, a significantly different protein expression was confirmed for STK10, PDXK, WDR24, CSSP1, NMB, RASL11B, phosphorylated PRKCZ, PRKCZ, and phosphorylated GRB10 in the intracranial metastases. The observed changes imply a distinct intracranial phenotype with increased protein kinase B phosphorylation and a higher frequency of proliferating cells. Knockdown of PRKCZ or GRB10 altered the expression of phosphorylated protein kinase B and decreased the viability of a brain-specific melanoma cell line. In summary, epigenetically regulated cancer-relevant alterations were identified that provide insights into the molecular mechanisms that discriminate brain metastases from other organ metastases, which could be exploited by targeting the affected signaling pathways.
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Affiliation(s)
- Dana Westphal
- Department of Dermatology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany; National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany.
| | - Matthias Meinhardt
- Institute of Pathology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Konrad Grützmann
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany; Core Unit for Molecular Tumor Diagnostics (CMTD), National Center for Tumor Diseases (NCT/UCC), Dresden, Germany; Institute for Medical Informatics and Biometry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Lisa Schöne
- Department of Dermatology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany; National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany; Institute for Medical Informatics and Biometry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Julian Steininger
- Department of Dermatology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Lena T Neuhaus
- Institute of Pathology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Miriam Wiegel
- Department of Dermatology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Daniel Schrimpf
- Department of Neuropathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany; Clinical Cooperation Unit Neuropathology, German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniela E Aust
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany; Institute of Pathology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany; Core Unit for Molecular Tumor Diagnostics (CMTD), National Center for Tumor Diseases (NCT/UCC), Dresden, Germany; German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany; BioBank Dresden (BBD), Tumor and Normal Tissue Bank (TNTB), National Center for Tumor Diseases (NCT/UCC), University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Evelin Schröck
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany; Core Unit for Molecular Tumor Diagnostics (CMTD), National Center for Tumor Diseases (NCT/UCC), Dresden, Germany; German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany; Institute for Clinical Genetics, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Gustavo B Baretton
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany; Institute of Pathology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany; Core Unit for Molecular Tumor Diagnostics (CMTD), National Center for Tumor Diseases (NCT/UCC), Dresden, Germany; German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany; BioBank Dresden (BBD), Tumor and Normal Tissue Bank (TNTB), National Center for Tumor Diseases (NCT/UCC), University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Stefan Beissert
- Department of Dermatology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany; National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany
| | - Tareq A Juratli
- Department of Neurosurgery, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Gabriele G Schackert
- Department of Neurosurgery, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Jan Gravemeyer
- Translational Skin Cancer Research, German Cancer Consortium (DKTK), Partner Site Essen, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jürgen C Becker
- Translational Skin Cancer Research, German Cancer Consortium (DKTK), Partner Site Essen, and German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Dermatology, University Hospital Essen, Essen, Germany
| | - Andreas von Deimling
- Department of Neuropathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany; Clinical Cooperation Unit Neuropathology, German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christian Koelsche
- Department of Neuropathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany; Clinical Cooperation Unit Neuropathology, German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of General Pathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Barbara Klink
- Core Unit for Molecular Tumor Diagnostics (CMTD), National Center for Tumor Diseases (NCT/UCC), Dresden, Germany; Institute for Clinical Genetics, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Friedegund Meier
- Department of Dermatology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany; National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany; Skin Cancer Center at the University Cancer Center and National Center for Tumor Diseases, Dresden, Germany
| | - Alexander Schulz
- Department of Dermatology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany; National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany
| | - Michael H Muders
- Institute of Pathology, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Michael Seifert
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Medizinische Fakultät and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany; Institute for Medical Informatics and Biometry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
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Wang W, Zhang J, Wang Y, Xu Y, Zhang S. Identifies microtubule-binding protein CSPP1 as a novel cancer biomarker associated with ferroptosis and tumor microenvironment. Comput Struct Biotechnol J 2022; 20:3322-3335. [PMID: 35832625 PMCID: PMC9253833 DOI: 10.1016/j.csbj.2022.06.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/19/2022] [Accepted: 06/21/2022] [Indexed: 12/02/2022] Open
Abstract
Centrosome and spindle pole-associated protein (CSPP1) is a centrosome and microtubule-binding protein that plays a role in cell cycle-dependent cytoskeleton organization and cilia formation. Previous studies have suggested that CSPP1 plays a role in tumorigenesis; however, no pan-cancer analysis has been performed. This study systematically investigates the expression of CSPP1 and its potential clinical outcomes associated with diagnosis, prognosis, and therapy. CSPP1 is widely present in tissues and cells and its aberrant expression serves as a diagnostic biomarker for cancer. CSPP1 dysregulation is driven by multi-dimensional mechanisms involving genetic alterations, DNA methylation, and miRNAs. Phosphorylation of CSPP1 at specific sites may play a role in tumorigenesis. In addition, CSPP1 correlates with clinical features and outcomes in multiple cancers. Take brain low-grade gliomas (LGG) with a poor prognosis as an example, functional enrichment analysis implies that CSPP1 may play a role in ferroptosis and tumor microenvironment (TME), including regulating epithelial-mesenchymal transition, stromal response, and immune response. Further analysis confirms that CSPP1 dysregulates ferroptosis in LGG and other cancers, making it possible for ferroptosis-based drugs to be used in the treatment of these cancers. Importantly, CSPP1-associated tumors are infiltrated in different TMEs, rendering immune checkpoint blockade therapy beneficial for these cancer patients. Our study is the first to demonstrate that CSPP1 is a potential diagnostic and prognostic biomarker associated with ferroptosis and TME, providing a new target for drug therapy and immunotherapy in specific cancers.
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Key Words
- ACC, adrenocortical carcinoma
- BP, biological pathways
- BRCA, breast invasive carcinoma
- Biomarker
- C-index, concordance index
- CAF, cancer-associated fibroblasts
- CC, cellular component
- CESC, cervical squamous cell carcinoma and endocervical adenocarcinoma
- CHOL, cholangiocarcinoma
- CNA, copy number alteration
- COAD, colon adenocarcinoma
- CPTAC, Clinical Proteomic Tumor Analysis Consortium
- CSPP1
- CSPP1, centrosome and spindle pole-associated protein
- CTL, cytotoxic T lymphocyte
- DEGs, differentially expressed genes
- DLBC, diffuse large B-cell lymphoma
- DSS, disease-specific survival
- EMT, epithelial-mesenchymal transition
- ENCORI, Encyclopedia of RNA Interactomes
- ESCA, esophageal carcinoma
- FAG, ferroptosis-associated gene
- FDG, ferroptosis-driver gene
- FSG, ferroptosis-suppressor gene
- Ferroptosis
- GBM, glioblastoma multiforme
- GO, Gene Ontology
- GSEA, Gene Set Enrichment Analysis
- GSVA, gene set variation analysis
- GTEx, Genotype-Tissue Expression
- HNSC, head and neck squamous cell carcinoma
- ICB, immune checkpoint blockade
- KEGG, Kyoto Encyclopedia of Genes and Genomes
- KICH, kidney chromophobe
- KIRC, renal clear cell carcinoma
- KM, Kaplan-Meier
- LAML, acute myeloid leukemia
- LGG, low-grade gliomas
- LIHC, liver hepatocellular carcinoma
- LUAD, lung adenocarcinoma
- LUSC, lung squamous cell carcinoma
- MF, molecular functions
- MHC, major histocompatibility complex
- MSI, microsatellite instability
- OS, overall survival
- OV, ovarian serous cystadenocarcinoma
- PAAD, pancreatic adenocarcinoma
- PFI, progression-free interval
- PFS, progression-free survival
- PRAD, prostate cancer
- Pan-cancer
- READ, rectum adenocarcinoma
- ROC, receiver operating characteristics
- SKCM, skin cutaneous melanoma
- TCGA, The Cancer Genome Atlas
- TGCT, testicular germ cell tumors, STAD, stomach adenocarcinoma
- THCA, thyroid cancer
- THYM, thymoma
- TIDE, Tumor Immune Dysfunction and Exclusion
- TIMER, Tumor Immune Estimation Resource
- TISIDB, Tumor-Immune System Interactions DataBase
- TMB, tumor mutation burden
- TME, tumor microenvironment
- Tumor microenvironment
- UCEC, endometrial cancer uterine corpus endometrial carcinoma
- UCS, uterine carcinosarcoma
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Affiliation(s)
- Wenwen Wang
- Translational Medicine Research Center, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Cancer Center, Zhejiang University, Hangzhou, China
| | - Jingjing Zhang
- Translational Medicine Research Center, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Cancer Center, Zhejiang University, Hangzhou, China
| | - Yuqing Wang
- Translational Medicine Research Center, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Cancer Center, Zhejiang University, Hangzhou, China
| | - Yasi Xu
- Translational Medicine Research Center, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Cancer Center, Zhejiang University, Hangzhou, China
| | - Shirong Zhang
- Translational Medicine Research Center, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Cancer Center, Zhejiang University, Hangzhou, China
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3
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Hua K, Ferland RJ. Primary Cilia Reconsidered in the Context of Ciliopathies: Extraciliary and Ciliary Functions of Cilia Proteins Converge on a Polarity theme? Bioessays 2018; 40:e1700132. [PMID: 29882973 PMCID: PMC6239423 DOI: 10.1002/bies.201700132] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 05/09/2018] [Indexed: 12/13/2022]
Abstract
Once dismissed as vestigial organelles, primary cilia have garnered the interest of scientists, given their importance in development/signaling, and for their implication in a new disease category known as ciliopathies. However, many, if not all, "cilia" proteins also have locations/functions outside of the primary cilium. These extraciliary functions can complicate the interpretation of a particular ciliopathy phenotype: it may be a result of defects at the cilium and/or at extraciliary locations, and it could be broadly related to a unifying cellular process for these proteins, such as polarity. Assembly of a cilium has many similarities to the development of other polarized structures. This evolutionarily preserved process for the assembly of polarized cell structures offers a perspective on how the cilium may have evolved. We hypothesize that cilia proteins are critical for cell polarity, and that core polarity proteins may have been specialized to form various cellular protrusions, including primary cilia.
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Affiliation(s)
- Kiet Hua
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA, 12208
| | - Russell J Ferland
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA, 12208
- Department of Neurology, Albany Medical College, Albany, New York, USA, 12208
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Shearer RF, Frikstad KAM, McKenna J, McCloy RA, Deng N, Burgess A, Stokke T, Patzke S, Saunders DN. The E3 ubiquitin ligase UBR5 regulates centriolar satellite stability and primary cilia. Mol Biol Cell 2018; 29:1542-1554. [PMID: 29742019 PMCID: PMC6080653 DOI: 10.1091/mbc.e17-04-0248] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Primary cilia are crucial for signal transduction in a variety of pathways, including hedgehog and Wnt. Disruption of primary cilia formation (ciliogenesis) is linked to numerous developmental disorders (known as ciliopathies) and diseases, including cancer. The ubiquitin-proteasome system (UPS) component UBR5 was previously identified as a putative positive regulator of ciliogenesis in a functional genomics screen. UBR5 is an E3 ubiquitin ligase that is frequently deregulated in tumors, but its biological role in cancer is largely uncharacterized, partly due to a lack of understanding of interacting proteins and pathways. We validated the effect of UBR5 depletion on primary cilia formation using a robust model of ciliogenesis, and identified CSPP1, a centrosomal and ciliary protein required for cilia formation, as a UBR5-interacting protein. We show that UBR5 ubiquitylates CSPP1, and that UBR5 is required for cytoplasmic organization of CSPP1-comprising centriolar satellites in centrosomal periphery, suggesting that UBR5-mediated ubiquitylation of CSPP1 or associated centriolar satellite constituents is one underlying requirement for cilia expression. Hence, we have established a key role for UBR5 in ciliogenesis that may have important implications in understanding cancer pathophysiology.
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Affiliation(s)
- Robert F Shearer
- Garvan Institute of Medical Research, Kinghorn Cancer Centre, Darlinghurst 2010, Australia.,Faculty of Medicine, St. Vincent's Clinical School, University of New South Wales, Sydney 2052, Australia
| | - Kari-Anne Myrum Frikstad
- Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, 0310 Oslo, Norway
| | - Jessie McKenna
- Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney 2052, Australia
| | - Rachael A McCloy
- Garvan Institute of Medical Research, Kinghorn Cancer Centre, Darlinghurst 2010, Australia
| | - Niantao Deng
- Garvan Institute of Medical Research, Kinghorn Cancer Centre, Darlinghurst 2010, Australia
| | - Andrew Burgess
- Garvan Institute of Medical Research, Kinghorn Cancer Centre, Darlinghurst 2010, Australia.,Faculty of Medicine, St. Vincent's Clinical School, University of New South Wales, Sydney 2052, Australia
| | - Trond Stokke
- Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, 0310 Oslo, Norway
| | - Sebastian Patzke
- Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, 0310 Oslo, Norway
| | - Darren N Saunders
- Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney 2052, Australia
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5
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Hua K, Ferland RJ. Primary cilia proteins: ciliary and extraciliary sites and functions. Cell Mol Life Sci 2018; 75:1521-1540. [PMID: 29305615 DOI: 10.1007/s00018-017-2740-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/21/2017] [Accepted: 12/27/2017] [Indexed: 02/07/2023]
Abstract
Primary cilia are immotile organelles known for their roles in development and cell signaling. Defects in primary cilia result in a range of disorders named ciliopathies. Because this organelle can be found singularly on almost all cell types, its importance extends to most organ systems. As such, elucidating the importance of the primary cilium has attracted researchers from all biological disciplines. As the primary cilia field expands, caution is warranted in attributing biological defects solely to the function of this organelle, since many of these "ciliary" proteins are found at other sites in cells and likely have non-ciliary functions. Indeed, many, if not all, cilia proteins have locations and functions outside the primary cilium. Extraciliary functions are known to include cell cycle regulation, cytoskeletal regulation, and trafficking. Cilia proteins have been observed in the nucleus, at the Golgi apparatus, and even in immune synapses of T cells (interestingly, a non-ciliated cell). Given the abundance of extraciliary sites and functions, it can be difficult to definitively attribute an observed phenotype solely to defective cilia rather than to some defective extraciliary function or a combination of both. Thus, extraciliary sites and functions of cilia proteins need to be considered, as well as experimentally determined. Through such consideration, we will understand the true role of the primary cilium in disease as compared to other cellular processes' influences in mediating disease (or through a combination of both). Here, we review a compilation of known extraciliary sites and functions of "cilia" proteins as a means to demonstrate the potential non-ciliary roles for these proteins.
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Affiliation(s)
- Kiet Hua
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA.
| | - Russell J Ferland
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA. .,Department of Neurology, Albany Medical College, Albany, NY, 12208, USA.
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Russnes HG, Lingjærde OC, Børresen-Dale AL, Caldas C. Breast Cancer Molecular Stratification: From Intrinsic Subtypes to Integrative Clusters. Am J Pathol 2017; 187:2152-2162. [PMID: 28733194 DOI: 10.1016/j.ajpath.2017.04.022] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/19/2017] [Accepted: 04/27/2017] [Indexed: 02/08/2023]
Abstract
Breast carcinomas can be stratified into different entities based on clinical behavior, histologic features, and/or by biological properties. A classification of breast cancer should be based on underlying biology, which we know must be determined by the somatic genomic landscape of mutations. Moreover, because the latest generations of anticancer agents are founded on biological mechanisms, a detailed molecular stratification is a requirement for appropriate clinical management. Such stratification, based on genomic drivers, will be important for selecting patients for clinical trials. It will also facilitate the discovery of novel drivers, the study of tumor evolution, and the identification of mechanisms of treatment resistance. Assays for risk stratification have focused mainly on response prediction to existing treatment regimens. Molecular stratification based on gene expression profiling revealed that breast cancers could be classified in so-called intrinsic subtypes (luminal A and B, HER2-enriched, basal-like, and normal-like), which mostly corresponded to hormone receptor and HER2 status, and further stratified luminal tumors based on proliferation. The realization that a significant proportion of the gene expression landscape is determined by the somatic copy number alterations that drive expression in cis led to the newer classification of breast cancers into integrative clusters. This stratification of breast cancers into integrative clusters reveals prototypical patterns of single-nucleotide variants and is associated with distinct clinical courses and response to therapy.
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Affiliation(s)
- Hege G Russnes
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway; Department of Pathology, Oslo University Hospital Radiumhospitalet, Oslo, Norway
| | - Ole Christian Lingjærde
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway; Department of Computer Science, University of Oslo, Oslo, Norway
| | - Anne-Lise Børresen-Dale
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway; Department of Medicine, University of Oslo, Oslo, Norway
| | - Carlos Caldas
- Department of Oncology, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, United Kingdom.
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7
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Zhu L, Wang Z, Wang W, Wang C, Hua S, Su Z, Brako L, Garcia-Barrio M, Ye M, Wei X, Zou H, Ding X, Liu L, Liu X, Yao X. Mitotic Protein CSPP1 Interacts with CENP-H Protein to Coordinate Accurate Chromosome Oscillation in Mitosis. J Biol Chem 2015; 290:27053-27066. [PMID: 26378239 DOI: 10.1074/jbc.m115.658534] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Indexed: 12/23/2022] Open
Abstract
Mitotic chromosome segregation is orchestrated by the dynamic interaction of spindle microtubules with the kinetochores. During chromosome alignment, kinetochore-bound microtubules undergo dynamic cycles between growth and shrinkage, leading to an oscillatory movement of chromosomes along the spindle axis. Although kinetochore protein CENP-H serves as a molecular control of kinetochore-microtubule dynamics, the mechanistic link between CENP-H and kinetochore microtubules (kMT) has remained less characterized. Here, we show that CSPP1 is a kinetochore protein essential for accurate chromosome movements in mitosis. CSPP1 binds to CENP-H in vitro and in vivo. Suppression of CSPP1 perturbs proper mitotic progression and compromises the satisfaction of spindle assembly checkpoint. In addition, chromosome oscillation is greatly attenuated in CSPP1-depleted cells, similar to what was observed in the CENP-H-depleted cells. Importantly, CSPP1 depletion enhances velocity of kinetochore movement, and overexpression of CSPP1 decreases the speed, suggesting that CSPP1 promotes kMT stability during cell division. Specific perturbation of CENP-H/CSPP1 interaction using a membrane-permeable competing peptide resulted in a transient mitotic arrest and chromosome segregation defect. Based on these findings, we propose that CSPP1 cooperates with CENP-H on kinetochores to serve as a novel regulator of kMT dynamics for accurate chromosome segregation.
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Affiliation(s)
- Lijuan Zhu
- Laboratory for Cellular Dynamics, University of Science and Technology of China, Hefei 230027, China
| | - Zhikai Wang
- Laboratory for Cellular Dynamics, University of Science and Technology of China, Hefei 230027, China; the Morehouse School of Medicine and Atlanta Cardiovascular Research Institute, Atlanta, Georgia 30310
| | - Wenwen Wang
- Laboratory for Cellular Dynamics, University of Science and Technology of China, Hefei 230027, China; the Morehouse School of Medicine and Atlanta Cardiovascular Research Institute, Atlanta, Georgia 30310,; the Airforce General Hospital, Beijing 100036, China
| | - Chunli Wang
- the National Chromatographic Research and Analysis Center, Chinese Academy of Sciences, Dalian 116023, China
| | - Shasha Hua
- Laboratory for Cellular Dynamics, University of Science and Technology of China, Hefei 230027, China; the Airforce General Hospital, Beijing 100036, China
| | - Zeqi Su
- the Beijing University of Chinese Medicine, Beijing 100029, China
| | - Larry Brako
- the Morehouse School of Medicine and Atlanta Cardiovascular Research Institute, Atlanta, Georgia 30310
| | - Minerva Garcia-Barrio
- the Morehouse School of Medicine and Atlanta Cardiovascular Research Institute, Atlanta, Georgia 30310
| | - Mingliang Ye
- the National Chromatographic Research and Analysis Center, Chinese Academy of Sciences, Dalian 116023, China
| | - Xuan Wei
- the Airforce General Hospital, Beijing 100036, China
| | - Hanfa Zou
- the National Chromatographic Research and Analysis Center, Chinese Academy of Sciences, Dalian 116023, China
| | - Xia Ding
- the Beijing University of Chinese Medicine, Beijing 100029, China
| | - Lifang Liu
- the Airforce General Hospital, Beijing 100036, China.
| | - Xing Liu
- Laboratory for Cellular Dynamics, University of Science and Technology of China, Hefei 230027, China; the Morehouse School of Medicine and Atlanta Cardiovascular Research Institute, Atlanta, Georgia 30310,.
| | - Xuebiao Yao
- Laboratory for Cellular Dynamics, University of Science and Technology of China, Hefei 230027, China.
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Sternemalm J, Geimer S, Frikstad KAM, Schink KO, Stokke T, Patzke S. CSPP-L Associates with the Desmosome of Polarized Epithelial Cells and Is Required for Normal Spheroid Formation. PLoS One 2015; 10:e0134789. [PMID: 26241740 PMCID: PMC4524657 DOI: 10.1371/journal.pone.0134789] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 07/14/2015] [Indexed: 11/20/2022] Open
Abstract
Deleterious mutations of the Centrosome/Spindle Pole associated Protein 1 gene, CSPP1, are causative for Joubert-syndrome and Joubert-related developmental disorders. These disorders are defined by a characteristic mal-development of the brain, but frequently involve renal and hepatic cyst formation. CSPP-L, the large protein isoform of CSPP1 localizes to microtubule ends of the mitotic mid-spindle and the ciliary axoneme, and is required for ciliogenesis. We here report the microtubule independent but Desmoplakin dependent localization of CSPP-L to Desmosomes in apical-basal polarized epithelial cells. Importantly, siRNA conferred depletion of CSPP-L or Desmoplakin promoted multi-lumen spheroid formation in 3D-cultures of non-ciliated human colon carcinoma Caco-2 cells. Multi-lumen spheroids of CSPP1 siRNA transfectants showed disrupted apical cell junction localization of the cytoskeleton organizing RhoGEF ECT2. Our results hence identify a novel, non-ciliary role for CSPP-L in epithelial morphogenesis.
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Affiliation(s)
- Johan Sternemalm
- Department of Radiation Biology, Division of Cancer Medicine, Surgery and Transplantation, Institute for Cancer Research, Oslo University Hospitals-Norwegian Radium Hospital, Oslo, Norway
| | - Stefan Geimer
- Cell Biology/Electron Microscopy, University of Bayreuth, Bayreuth, Germany
| | - Kari-Anne M Frikstad
- Department of Radiation Biology, Division of Cancer Medicine, Surgery and Transplantation, Institute for Cancer Research, Oslo University Hospitals-Norwegian Radium Hospital, Oslo, Norway
| | - Kay O Schink
- Department of Molecular Cell Biology, Division of Cancer Medicine, Surgery and Transplantation, Institute for Cancer Research, Oslo University Hospitals-Norwegian Radium Hospital, Oslo, Norway; Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Trond Stokke
- Department of Radiation Biology, Division of Cancer Medicine, Surgery and Transplantation, Institute for Cancer Research, Oslo University Hospitals-Norwegian Radium Hospital, Oslo, Norway
| | - Sebastian Patzke
- Department of Radiation Biology, Division of Cancer Medicine, Surgery and Transplantation, Institute for Cancer Research, Oslo University Hospitals-Norwegian Radium Hospital, Oslo, Norway
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