1
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Karakosta C, Samiotaki M, Panayotou G, Papaconstantinou DS, Moschos MM. Lens Cytoskeleton: An Update on the Etiopathogenesis of Human Cataracts. Cureus 2024; 16:e56793. [PMID: 38650819 PMCID: PMC11035009 DOI: 10.7759/cureus.56793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2024] [Indexed: 04/25/2024] Open
Abstract
A cataract is a loss of the transparency of a normal crystalline lens. Multiple factors, including age as the major risk factor for cataracts, can disturb the transparency of the crystalline lens due to cumulative damage from environmental insults to proteins, particularly crystallins. Lens proteins do not turnover, and crystallins undergo extensive post-translational modifications (PTMs) with age in order to interact with each other and maintain their soluble basis for lens transparency. These PTMs include truncation, oxidation, deamidation, acetylation, phosphorylation, and glycosylation. Cataract formation, apart from protein PTMs, involves protein crosslinking, protein insolubilization, and aggregation. Oxidation is a key feature in age-related cataract formation. Due to the role of genetic and environmental factors, as well as its variable clinical presentation, we consider cataracts to be a multifactorial disease. The preliminary results of our study indicate that proteins implicated in the pathway of a structural constituent of the eye lens (BFSP1, BFSP2, CRYAA, CRYAB, CRYBA, CRYBB, CRYGC, CRYGD, CRYGS, KRTs, and VIM), together with AQP1 and AQP5, may also be involved in lens aging.
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Affiliation(s)
- Christina Karakosta
- Ophthalmology, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
| | - Martina Samiotaki
- Proteomics, Biomedical Sciences Research Center "Alexander Fleming", Athens, GRC
| | - George Panayotou
- Proteomics, Biomedical Sciences Research Center "Alexander Fleming", Athens, GRC
| | - Dimitrios S Papaconstantinou
- Ophthalmology, Gennimatas Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
| | - Marilita M Moschos
- 1st Department of Ophthalmology, National and Kapodistrian University of Athens, Athens, GRC
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2
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Yuan X, Xiao Y, Luo Y, Wei C, Wang J, Huang J, Liao W, Song S, Jiang Z. Identification and validation of PGLS as a metabolic target for early screening and prognostic monitoring of gastric cancer. J Clin Lab Anal 2021; 36:e24189. [PMID: 34953081 PMCID: PMC8841181 DOI: 10.1002/jcla.24189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Gastric cancer is the third leading cause of cancer-related death in the world. The purpose of the present study is to investigate the expression and prognostic significance of 6-phosphogluconolactonase (PGLS) in gastric cancer. METHODS The protein extracted from a panel of four pairs of gastric cancer tissues and adjacent tissues, labeled with iTRAQ (8-plex) reagents, and followed by LC-ESI-MS/MS. The expressions of proteins were further validated by immunohistochemistry analysis. The expression levels of mRNA were analyzed and validated in the Oncomine database. The correlations of PGLS with prognostic outcomes were evaluated with Kaplan-Meier plotter database. RESULTS The present study found that PGLS was significantly up-regulated in gastric cancer by using iTRAQ-based proteomics and immunohistochemistry analysis. The sensitivity of PGLS in gastric cancer was 72.9%. The high expression of PGLS was significantly correlated with TNM staging in gastric cancer (p = 0.02). The overexpression of PGLS predicts worse overall survival (OS) and post-progression survival (PPS) for gastric cancer (OS, HR = 1.48, p = 2.1e-05; PPS, HR = 1.35, p = 0.015). Specifically, the high PGLS expression predicts poor OS, PPS in male gastric cancer patients, in patients with lymph node metastasis and in patients with Her-2 (-). CONCLUSIONS These findings suggested that PGLS was aberrantly expressed in gastric cancer and predicts poor overall survival, post-progression survival for gastric cancer patients. The present study collectively supported that PGLS is an important target for early determining and follow-up monitoring for gastric cancer.
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Affiliation(s)
- Xiaoxia Yuan
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Yang Xiao
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Yaomin Luo
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Chen Wei
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Jiaxin Wang
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Jinglin Huang
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Weiliang Liao
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Shenjie Song
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Zhen Jiang
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, China
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3
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Woollam M, Teli M, Liu S, Daneshkhah A, Siegel AP, Yokota H, Agarwal M. Urinary Volatile Terpenes Analyzed by Gas Chromatography-Mass Spectrometry to Monitor Breast Cancer Treatment Efficacy in Mice. J Proteome Res 2020; 19:1913-1922. [PMID: 32227867 DOI: 10.1021/acs.jproteome.9b00722] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Urinary volatile terpene (VT) levels are significantly altered with induced models of breast cancer in mice. The question arises whether VTs can detect the efficacy of antitumor treatments. BALB/c mice were injected with 4T1.2 murine tumor cells in the mammary pad or iliac artery to model localized breast cancer and induced bone metastasis. The effect of two dopaminergic antitumor agents was tested by conventional histology and altered VT levels. The headspace of urine specimens was analyzed by gas chromatography-mass spectrometry. In the localized model, the statistical significance (p < 0.05) was identified for 26% of VTs, and in the metastasis model, 19% of VTs. The authors discovered separate VT panels classifying localized/control [area under the curve (AUC) = 1.0] and metastasis/control (AUC = 0.98). Treatment samples were tested using these panels, which showed that mice treated with either agent were statistically significantly different from cancer samples, which is consistent with conventional analysis.
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Affiliation(s)
- Mark Woollam
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States
| | - Meghana Teli
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis Indianapolis 46202, Indiana, United States
| | - Shengzhi Liu
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis Indianapolis 46202, Indiana, United States
| | - Ali Daneshkhah
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States
| | - Amanda P Siegel
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States
| | - Hiroki Yokota
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis Indianapolis 46202, Indiana, United States.,Biomechanics and Biomaterials Research Center, Indianapolis 46202, Indiana, United States
| | - Mangilal Agarwal
- Integrated Nanosystems Development Institute, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States.,Department of Mechanical Engineering and Energy, Indiana University-Purdue University Indianapolis, Indianapolis 46202, Indiana, United States
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4
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Identifying Mutually Exclusive Gene Sets with Prognostic Value and Novel Potential Driver Genes in Patients with Glioblastoma. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4860367. [PMID: 31815141 PMCID: PMC6878817 DOI: 10.1155/2019/4860367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/15/2019] [Accepted: 10/01/2019] [Indexed: 12/12/2022]
Abstract
The pathogenesis and prognosis of glioblastoma (GBM) remain poorly understood. Mutual exclusivity analysis can distinguish driver genes and pathways from passenger ones. The purpose of this study was to identify mutually exclusive gene sets (MEGSs) that have prognostic value and to detect novel driver genes in GBM. The genomic alteration profile and clinical information were derived from The Cancer Genome Atlas, and the MEGSA method was used to identify the MEGS. Next, we performed survival analysis and constructed a risk prediction model for prognostic stratification. Leave-one-out cross-validation and permutation test were used to evaluate its performance. Finally, we identified 21 statistically significant MEGSs. We found that the MEGS in the RB pathway was significantly associated with poor prognosis, after adjusting for age and gender (HR = 1.837, 95% CI: 1.192-2.831). Based on the risk prediction model, 208 (80.9%) and 49 (19.1%) patients were assigned to high- and low-risk groups, respectively (log-rank: p < 0.001, adjusted p=0.001). Additionally, we found that SPTA1, a novel gene involved in the MEGS, was mutually exclusive with members of cell cycle, P53, and RB pathways. In conclusion, the MEGS in the RB pathway had considerable clinical value for GBM prognostic stratification. Mutated SPTA1 may be involved in GBM development.
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5
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Madugundu AK, Na CH, Nirujogi RS, Renuse S, Kim KP, Burns KH, Wilks C, Langmead B, Ellis SE, Collado‐Torres L, Halushka MK, Kim M, Pandey A. Integrated Transcriptomic and Proteomic Analysis of Primary Human Umbilical Vein Endothelial Cells. Proteomics 2019; 19:e1800315. [PMID: 30983154 PMCID: PMC6812510 DOI: 10.1002/pmic.201800315] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 01/17/2019] [Indexed: 01/11/2023]
Abstract
Understanding the molecular profile of every human cell type is essential for understanding its role in normal physiology and disease. Technological advancements in DNA sequencing, mass spectrometry, and computational methods allow us to carry out multiomics analyses although such approaches are not routine yet. Human umbilical vein endothelial cells (HUVECs) are a widely used model system to study pathological and physiological processes associated with the cardiovascular system. In this study, next-generation sequencing and high-resolution mass spectrometry to profile the transcriptome and proteome of primary HUVECs is employed. Analysis of 145 million paired-end reads from next-generation sequencing confirmed expression of 12 186 protein-coding genes (FPKM ≥0.1), 439 novel long non-coding RNAs, and revealed 6089 novel isoforms that were not annotated in GENCODE. Proteomics analysis identifies 6477 proteins including confirmation of N-termini for 1091 proteins, isoforms for 149 proteins, and 1034 phosphosites. A database search to specifically identify other post-translational modifications provide evidence for a number of modification sites on 117 proteins which include ubiquitylation, lysine acetylation, and mono-, di- and tri-methylation events. Evidence for 11 "missing proteins," which are proteins for which there was insufficient or no protein level evidence, is provided. Peptides supporting missing protein and novel events are validated by comparison of MS/MS fragmentation patterns with synthetic peptides. Finally, 245 variant peptides derived from 207 expressed proteins in addition to alternate translational start sites for seven proteins and evidence for novel proteoforms for five proteins resulting from alternative splicing are identified. Overall, it is believed that the integrated approach employed in this study is widely applicable to study any primary cell type for deeper molecular characterization.
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Affiliation(s)
- Anil K. Madugundu
- Center for Molecular MedicineNational Institute of Mental Health and NeurosciencesHosur RoadBangalore560029KarnatakaIndia
- Institute of BioinformaticsInternational Technology ParkBangalore560066KarnatakaIndia
- Manipal Academy of Higher EducationManipal576104KarnatakaIndia
- McKusick‐Nathans Institute of Genetic MedicineJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Center for Individualized Medicine and Department of Laboratory Medicine and PathologyMayo ClinicRochesterMN55905USA
| | - Chan Hyun Na
- McKusick‐Nathans Institute of Genetic MedicineJohns Hopkins University School of MedicineBaltimoreMD21205USA
- NeurologyInstitute for Cell EngineeringJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Raja Sekhar Nirujogi
- McKusick‐Nathans Institute of Genetic MedicineJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Santosh Renuse
- McKusick‐Nathans Institute of Genetic MedicineJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Center for Individualized Medicine and Department of Laboratory Medicine and PathologyMayo ClinicRochesterMN55905USA
| | - Kwang Pyo Kim
- Department of Applied ChemistryKyung Hee UniversityYonginGyeonggi17104Republic of Korea
| | - Kathleen H. Burns
- McKusick‐Nathans Institute of Genetic MedicineJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Departments of PathologyJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Sidney Kimmel Comprehensive Cancer CenterJohns Hopkins University School of MedicineBaltimoreMD21205USA
- High Throughput Biology CenterJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Christopher Wilks
- Department of Computer ScienceJohns Hopkins UniversityBaltimoreMD21218USA
- Center for Computational BiologyJohns Hopkins UniversityBaltimoreMD21205USA
| | - Ben Langmead
- Department of Computer ScienceJohns Hopkins UniversityBaltimoreMD21218USA
- Center for Computational BiologyJohns Hopkins UniversityBaltimoreMD21205USA
| | - Shannon E. Ellis
- Center for Computational BiologyJohns Hopkins UniversityBaltimoreMD21205USA
- Department of BiostatisticsJohns Hopkins Bloomberg School of Public HealthBaltimoreMD21205USA
| | - Leonardo Collado‐Torres
- Center for Computational BiologyJohns Hopkins UniversityBaltimoreMD21205USA
- Lieber Institute for Brain DevelopmentJohns Hopkins Medical CampusBaltimoreMD21205USA
| | - Marc K. Halushka
- Departments of PathologyJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Min‐Sik Kim
- Department of Applied ChemistryKyung Hee UniversityYonginGyeonggi17104Republic of Korea
- Department of New BiologyDGISTDaegu42988Republic of Korea
| | - Akhilesh Pandey
- Center for Molecular MedicineNational Institute of Mental Health and NeurosciencesHosur RoadBangalore560029KarnatakaIndia
- McKusick‐Nathans Institute of Genetic MedicineJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Center for Individualized Medicine and Department of Laboratory Medicine and PathologyMayo ClinicRochesterMN55905USA
- NeurologyInstitute for Cell EngineeringJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Departments of PathologyJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Department of Biological ChemistryJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Department of OncologyJohns Hopkins University School of MedicineBaltimoreMD21205USA
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6
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Liluashvili V, Kalayci S, Fluder E, Wilson M, Gabow A, Gümüs ZH. iCAVE: an open source tool for visualizing biomolecular networks in 3D, stereoscopic 3D and immersive 3D. Gigascience 2018; 6:1-13. [PMID: 28814063 PMCID: PMC5554349 DOI: 10.1093/gigascience/gix054] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 07/05/2017] [Indexed: 02/02/2023] Open
Abstract
Visualizations of biomolecular networks assist in systems-level data exploration in many cellular processes. Data generated from high-throughput experiments increasingly inform these networks, yet current tools do not adequately scale with concomitant increase in their size and complexity. We present an open source software platform, interactome-CAVE (iCAVE), for visualizing large and complex biomolecular interaction networks in 3D. Users can explore networks (i) in 3D using a desktop, (ii) in stereoscopic 3D using 3D-vision glasses and a desktop, or (iii) in immersive 3D within a CAVE environment. iCAVE introduces 3D extensions of known 2D network layout, clustering, and edge-bundling algorithms, as well as new 3D network layout algorithms. Furthermore, users can simultaneously query several built-in databases within iCAVE for network generation or visualize their own networks (e.g., disease, drug, protein, metabolite). iCAVE has modular structure that allows rapid development by addition of algorithms, datasets, or features without affecting other parts of the code. Overall, iCAVE is the first freely available open source tool that enables 3D (optionally stereoscopic or immersive) visualizations of complex, dense, or multi-layered biomolecular networks. While primarily designed for researchers utilizing biomolecular networks, iCAVE can assist researchers in any field.
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Affiliation(s)
- Vaja Liluashvili
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Selim Kalayci
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Eugene Fluder
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Manda Wilson
- Computational Biology Center, Memorial-Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Aaron Gabow
- Computational Biology Center, Memorial-Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Zeynep H Gümüs
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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7
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Liebel S, Regina Grötzner S, Dietrich Moura Costa D, Antônio Ferreira Randi M, Alberto de Oliveira Ribeiro C, Filipak Neto F. Cylindrospermopsin effects on protein profile of HepG2 cells. Toxicol Mech Methods 2016; 26:554-563. [PMID: 27494769 DOI: 10.1080/15376516.2016.1216209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Human hepatoma cells (HepG2) were exposed to purified cylindrospermopsin (CYN), a potent toxicant for eukaryotic cells produced by several cyanobacteria. Exposure to 10 μg l-1 of CYN for 24 h resulted in alteration of expression of 48 proteins, from which 26 were identified through mass spectrometry. Exposure to 100 μg l-1 of CYN for 24 h affected nuclear area and actin filaments intensity, which can be associated with cell proliferation and toxicity. The proteins are implicated in different biological processes: protein folding, xenobiotic efflux, antioxidant defense, energy metabolism and cell anabolism, cell signaling, tumorigenic potential, and cytoskeleton structure. Protein profile indicates that CYN exposure may lead to alteration of glucose metabolism that can be associated with the supply of useful energy to cells respond to chemical stress and proliferate. Increase of G protein-coupled receptors (GPCRs), heterogeneous nuclear ribonucleoproteins (hnRNP), and reactive oxygen species (ROS) levels observed in HepG2 cells can associate with cell proliferation and resistance. Increase of MRP3 and glutathione peroxidase can protect cells against some chemicals and ROS. CYN exposure also led to alteration of the expression of cytoskeleton proteins, which may be associated with cell proliferation and toxicity.
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Affiliation(s)
- Samuel Liebel
- a Departamento De Biologia Celular , Universidade Federal Do Paraná , Curitiba , Brazil
| | - Sonia Regina Grötzner
- a Departamento De Biologia Celular , Universidade Federal Do Paraná , Curitiba , Brazil
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8
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Liu J, Luo Z, Zhang L, Wang L, Nie Q, Wang ZF, Huang Z, Hu X, Gong L, Arrigo AP, Tang X, Xiang JW, Liu F, Deng M, Ji W, Hu W, Zhu JY, Chen B, Bridge J, Hollingsworth MA, Gigantelli J, Liu Y, Nguyen QD, Li DWC. The small heat shock protein αA-crystallin negatively regulates pancreatic tumorigenesis. Oncotarget 2016; 7:65808-65824. [PMID: 27588467 PMCID: PMC5323194 DOI: 10.18632/oncotarget.11668] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 08/14/2016] [Indexed: 12/12/2022] Open
Abstract
Our recent study has shown that αA-crystallin appears to act as a tumor suppressor in pancreas. Here, we analyzed expression patterns of αA-crystallin in the pancreatic tumor tissue and the neighbor normal tissue from 74 pancreatic cancer patients and also pancreatic cancer cell lines. Immunocytochemistry revealed that αA-crystallin was highly expressed in the normal tissue from 56 patients, but barely detectable in the pancreatic tumor tissue. Moreover, a low level of αA-crystallin predicts poor prognosis for patients with pancreatic duct adenocarcinoma (PDAC). In the 12 pancreatic cell lines analyzed, except for Capan-1 and Miapaca-2 where the level of αA-crystallin was about 80% and 65% of that in the control cell line, HPNE, the remaining pancreatic cancer cells have much lower αA-crystallin levels. Overexpression of αA-crystallin in MiaPaca-1 cells lacking endogenous αA-crystallin significantly decreased its tumorigenicity ability as shown in the colony formation and wound healing assays. In contrast, knockdown of αA-crystallin in the Capan-1 cells significantly increased its tumorigenicity ability as demonstrated in the above assays. Together, our results further demonstrate that αA-crystallin negatively regulates pancreatic tumorigenesis and appears to be a prognosis biomarker for PDAC.
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Affiliation(s)
- Jifang Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
- Institute of Cancer Research, The Affiliated Tumor Hospital of Guangzhou Medical College, Guangzhou, Guangdong 510095, China
| | - Zhongwen Luo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Lan Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Ling Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Key Laboratory of Protein Chemistry and Developmental Biology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Qian Nie
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
- Key Laboratory of Protein Chemistry and Developmental Biology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Zheng-Feng Wang
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Hepatobiliary Surgery Center of Peking University People's Hospital, Peking University, Beijing 100044, China
| | - Zhaoxia Huang
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Key Laboratory of Protein Chemistry and Developmental Biology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xiaohui Hu
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Key Laboratory of Protein Chemistry and Developmental Biology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Lili Gong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Andre-Patrick Arrigo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Xiangcheng Tang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Jia-Wen Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Fangyuan Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Mi Deng
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Weike Ji
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Wenfeng Hu
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ji-Ye Zhu
- Hepatobiliary Surgery Center of Peking University People's Hospital, Peking University, Beijing 100044, China
| | - Baojiang Chen
- Department of Biostatistics, College of Public Health, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Julia Bridge
- Department of Microbiology and Pathology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Michael A Hollingsworth
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - James Gigantelli
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Yizhi Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Quan D Nguyen
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - David Wan-Cheng Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
- Department of Ophthalmology & Visual Sciences, Truhlsen Eye Institute, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Key Laboratory of Protein Chemistry and Developmental Biology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
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9
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Visan S, Balacescu O, Berindan-Neagoe I, Catoi C. In vitro comparative models for canine and human breast cancers. ACTA ACUST UNITED AC 2016; 89:38-49. [PMID: 27004024 PMCID: PMC4777467 DOI: 10.15386/cjmed-519] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 09/15/2015] [Indexed: 12/12/2022]
Abstract
During the past four decades, an increased number of similarities between canine mammary tumors and human breast cancer have been reported: molecular, histological, morphological, clinical and epidemiological, which lead to comparative oncological studies. One of the most important goals in human and veterinary oncology is to discover potential molecular biomarkers that could detect breast cancer in an early stage and to develop new effective therapies. Recently, cancer cell lines have successfully been used as an in vitro model to study the biology of cancer, to investigate molecular pathways and to test the efficiency of anticancer drugs. Moreover, establishment of an experimental animal model for the study of human breast cancer will improve testing potential anti-cancer therapies and the discovery of effective therapeutic schemes suitable for human clinical trials. In this review, we collected data from previous studies that strengthen the value of canine mammary cancer cell lines as an in vitro model for the study of human breast cancer.
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Affiliation(s)
- Simona Visan
- Department of Pathological Anatomy, Necropsy and Veterinary Forensic Medicine, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania; Department of Functional Genomics, Proteomics and Experimental Pathology, Prof. Dr. Ion Chiricuta Oncology Institute, Cluj-Napoca, Romania
| | - Ovidiu Balacescu
- Department of Functional Genomics, Proteomics and Experimental Pathology, Prof. Dr. Ion Chiricuta Oncology Institute, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Department of Functional Genomics, Proteomics and Experimental Pathology, Prof. Dr. Ion Chiricuta Oncology Institute, Cluj-Napoca, Romania; Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania; Department of Immunology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania; Department of Experimental Therapeutics, MD Anderson Cancer Center, Houston, Texas, USA
| | - Cornel Catoi
- Department of Pathological Anatomy, Necropsy and Veterinary Forensic Medicine, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
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10
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Zhou Y, Deng X, Zang N, Li H, Li G, Li C, He M. Transcriptomic and Proteomic Investigation of HSP90A as a Potential Biomarker for HCC. Med Sci Monit 2015; 21:4039-49. [PMID: 26704341 PMCID: PMC4694708 DOI: 10.12659/msm.896712] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is the third most frequent cause of cancer-related death in adults. Despite recent advances in the clinical technologies, the screening and diagnostic efficacy for HCC remains poor. Discovering novel and reliable HCC biomarkers is urgently needed. Material/Methods We performed a transcriptome-proteome integrated assay to track the possible HCC biomarkers from the process of HCC-derived gene expression in malignant cells to its protein product released into serum. Results Our screening results demonstrated that heat shock protein 90A (HSP90A), which participates in the PI3K-Akt signaling pathway and many other cancer-related pathways, warrants further investigation. The expression of HSP90A was increased in the HCC cells, serum, and tissues. Immunohistochemistry analysis on 76 clinical tissue samples also suggested the relevance between HSP90A expression and HCC metastatic behavior. Conclusions These findings suggest a role for HSP90A in HCC pathogenesis and the potential use of HSP90A for the screening and diagnosis of this malignancy.
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Affiliation(s)
- Yi Zhou
- Medical Scientific Research Center of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Xiaofang Deng
- School of Public Health, Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Ning Zang
- Medical Scientific Research Center of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Hongtao Li
- Medical Scientific Research Center of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Gang Li
- Medical Scientific Research Center of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Cuiping Li
- School of Public Health, Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Min He
- Key Laboratory of High-Incidence Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, China (mainland)
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11
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Abstract
The annexins are a well-known, closely related, multigene superfamily of Ca2+-regulated, phospholipid-dependent, membrane-binding proteins. As a member of the annexins, Anxa1 participates in a variety of important biological processes, such as cellular transduction, membrane aggregation, inflammation, phagocytosis, proliferation, differentiation and apoptosis. Accumulated evidence has indicated that Anxa1 deregulations are associated with the development, invasion, metastasis, occurrence and drug resistance of cancers. The research evidence in recent years indicates that Anxa1 might specifically function either as a tumor suppressor or a tumor promoter candidate for certain cancers depending on the particular type of tumor cells/tissues. This article summarizes the associations between Anxa1 and malignant tumors, as well as potential action mechanisms. Anxa1 has the potential to be used in the future as a biomarker for the diagnosis, treatment and prognosis of certain tumors.
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Affiliation(s)
- Chunmei Guo
- Department of Biotechnology, Dalian Medical University, Dalian 116044, China
| | - Shuqing Liu
- Department of Biochemistry, Dalian Medical University, Dalian 116044, China
| | - Ming-Zhong Sun
- Department of Biotechnology, Dalian Medical University, Dalian 116044, China
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12
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Isolation and characterization of a canine mammary cell line prepared for proteomics analysis. Tissue Cell 2013; 45:183-90. [DOI: 10.1016/j.tice.2012.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 10/28/2012] [Accepted: 11/29/2012] [Indexed: 11/18/2022]
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13
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Lee YJ, Jeong SH, Hong SC, Cho BI, Ha WS, Park ST, Choi SK, Jung EJ, Ju YT, Jeong CY, Kim JW, Lee CW, Yoo J, Ko GH. Prognostic value of CAPZA1 overexpression in gastric cancer. Int J Oncol 2013; 42:1569-77. [PMID: 23545944 PMCID: PMC3661194 DOI: 10.3892/ijo.2013.1867] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 03/04/2013] [Indexed: 11/06/2022] Open
Abstract
F-actin capping protein α1 subunit (CAPZA1) was previously identified in a proteomic analysis of human gastric cancer clinical specimens and selected for further study. The association between CAPZA1 overexpression, detected by immunohistochemistry, and clinicopathological features including survival were evaluated. In vitro gain-of-function and loss-of-function approaches were utilized to assess the function of CPAZA1 in malignancy. Univariate analysis revealed that poorly differentiated disease, according to the World Health Organization (WHO) classification, advanced T stage, positive lymph nodes, high TNM stage, D2 lymph node dissection, adjuvant chemotherapy and CAPZA1 underexpression were significantly associated with cancer-related death (p<0.05); however, only high TNM stage remained significantly associated by multivariate analysis (p<0.01). CAPZA1 overexpression was associated with well differentiated histology, smaller tumor size, lower T stage, absence of lymph node metastasis, lower TNM stage, lower recurrence rate and longer survival time, compared to CAPZA1 underexpression. In vitro, forced expression of CAPZA1 caused a significant decrease in gastric cancer cell migration and invasion, whereas CAPZA1 depletion had the opposite effect. The present study suggests that CAPZA1 could be a marker of good prognosis in gastric cancer and shows that CAPZA1 is associated with decreased cancer cell migration and invasion.
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Affiliation(s)
- Young-Joon Lee
- Department of Surgery, Postgraduate School of Medicine, Gyeongnam Regional Cancer Center, Gyeongsang National University, Jinju, Republic of Korea
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14
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Natter K, Kohlwein SD. Yeast and cancer cells - common principles in lipid metabolism. BIOCHIMICA ET BIOPHYSICA ACTA 2013; 1831:314-26. [PMID: 22989772 PMCID: PMC3549488 DOI: 10.1016/j.bbalip.2012.09.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 09/07/2012] [Accepted: 09/08/2012] [Indexed: 12/15/2022]
Abstract
One of the paradigms in cancer pathogenesis is the requirement of a cell to undergo transformation from respiration to aerobic glycolysis - the Warburg effect - to become malignant. The demands of a rapidly proliferating cell for carbon metabolites for the synthesis of biomass, energy and redox equivalents, are fundamentally different from the requirements of a differentiated, quiescent cell, but it remains open whether this metabolic switch is a cause or a consequence of malignant transformation. One of the major requirements is the synthesis of lipids for membrane formation to allow for cell proliferation, cell cycle progression and cytokinesis. Enzymes involved in lipid metabolism were indeed found to play a major role in cancer cell proliferation, and most of these enzymes are conserved in the yeast, Saccharomyces cerevisiae. Most notably, cancer cell physiology and metabolic fluxes are very similar to those in the fermenting and rapidly proliferating yeast. Both types of cells display highly active pathways for the synthesis of fatty acids and their incorporation into complex lipids, and imbalances in synthesis or turnover of lipids affect growth and viability of both yeast and cancer cells. Thus, understanding lipid metabolism in S. cerevisiae during cell cycle progression and cell proliferation may complement recent efforts to understand the importance and fundamental regulatory mechanisms of these pathways in cancer.
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Affiliation(s)
- Klaus Natter
- University of Graz, Institute of Molecular Biosciences, Lipidomics Research Center Graz, Humboldtstrasse 50/II, 8010 Graz,
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15
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da Costa A, Kohn B, Gruber AD, Klopfleisch R. Multiple RT-PCR markers for the detection of circulating tumour cells of metastatic canine mammary tumours. Vet J 2012; 196:34-9. [PMID: 23036177 DOI: 10.1016/j.tvjl.2012.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 08/09/2012] [Accepted: 08/28/2012] [Indexed: 02/09/2023]
Abstract
In humans, detection of circulating tumour cells (CTCs) using nucleic acid-based methods such as reverse transcription polymerase chain reaction (RT-PCR) has proven to be of prognostic relevance. However, similar procedures are still lacking in veterinary oncology. To assess the correlation of CTC markers with the metastatic potential of canine mammary tumours, 120 peripheral blood samples from bitches with mammary carcinomas with (group 1) and without (group 2) histological evidence of vascular invasion and/or presence of lymph node metastases and mammary adenomas (group 3) were analyzed. Blood samples were collected in EDTA tubes and RNA was extracted within 48 h. Subsequently, the samples were tested by RT-PCR for a panel of seven CTC mRNA markers. CRYAB was the most sensitive single marker with a sensitivity of 35% and also the most specific marker with a specificity of 100% to detect group 1 blood samples. A multimarker assay combining four genes enhanced the sensitivity up to 77.5%, but decreased the specificity to 80%. CRYAB appeared to be highly specific but only moderately sensitive at detecting blood samples from dogs with metastatic tumours and detection significantly correlated with vascular invasion of primary mammary tumours. However, a multimarker assay of four genes significantly enhanced the sensitivity of the assay and is therefore preferable for CTC detection.
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Affiliation(s)
- A da Costa
- Institute of Veterinary Pathology, Freie Universität Berlin, Robert-von-Ostertag-Straße 15, 14163 Berlin, Germany
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16
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17
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Inhibition of glycogen phosphorylation induces changes in cellular proteome and signaling pathways in MIA pancreatic cancer cells. Pancreas 2012; 41:397-408. [PMID: 22158071 PMCID: PMC3306546 DOI: 10.1097/mpa.0b013e318236f022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Novel quantitative proteomic approaches were used to study the effects of inhibition of glycogen phosphorylase on proteome and signaling pathways in MIA PaCa-2 pancreatic cancer cells. METHODS We performed quantitative proteomic analysis in MIA PaCa-2 cancer cells treated with a stratified dose of CP-320626 (5-chloro-1H-indole-2-carboxylic acid [1-(4-fuorobenzyl)-2-(4-hydroxypiperidin-1-yl)-2 oxoethyl] amide) (25, 50, and 100 μM). The effect of metabolic inhibition on cellular protein turnover dynamics was also studied using the modified SILAC (stable isotope labeling with amino acids in cell culture) method. RESULTS A total of 22 protein spots and 4 phosphoprotein spots were quantitatively analyzed. We found that dynamic expression of total proteins and phosphoproteins was significantly changed in MIA PaCa-2 cells treated with an incremental dose of CP-320626. Functional analyses suggested that most of the proteins differentially expressed were in the pathways of mitogen-activated protein kinase/extracellular signal-regulated kinase and tumor necrosis factor α/nuclear factor κB. CONCLUSIONS Signaling pathways and metabolic pathways share many common cofactors and substrates forming an extended metabolic network. The restriction of substrate through 1 pathway such as inhibition of glycogen phosphorylation induces pervasive metabolomic and proteomic changes manifested in protein synthesis, breakdown, and posttranslational modification of signaling molecules. Our results suggest that quantitative proteomic is an important approach to understand the interaction between metabolism and signaling pathways.
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18
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Sigismund S, Confalonieri S, Ciliberto A, Polo S, Scita G, Di Fiore PP. Endocytosis and signaling: cell logistics shape the eukaryotic cell plan. Physiol Rev 2012; 92:273-366. [PMID: 22298658 DOI: 10.1152/physrev.00005.2011] [Citation(s) in RCA: 236] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Our understanding of endocytosis has evolved remarkably in little more than a decade. This is the result not only of advances in our knowledge of its molecular and biological workings, but also of a true paradigm shift in our understanding of what really constitutes endocytosis and of its role in homeostasis. Although endocytosis was initially discovered and studied as a relatively simple process to transport molecules across the plasma membrane, it was subsequently found to be inextricably linked with almost all aspects of cellular signaling. This led to the notion that endocytosis is actually the master organizer of cellular signaling, providing the cell with understandable messages that have been resolved in space and time. In essence, endocytosis provides the communications and supply routes (the logistics) of the cell. Although this may seem revolutionary, it is still likely to be only a small part of the entire story. A wealth of new evidence is uncovering the surprisingly pervasive nature of endocytosis in essentially all aspects of cellular regulation. In addition, many newly discovered functions of endocytic proteins are not immediately interpretable within the classical view of endocytosis. A possible framework, to rationalize all this new knowledge, requires us to "upgrade" our vision of endocytosis. By combining the analysis of biochemical, biological, and evolutionary evidence, we propose herein that endocytosis constitutes one of the major enabling conditions that in the history of life permitted the development of a higher level of organization, leading to the actuation of the eukaryotic cell plan.
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Affiliation(s)
- Sara Sigismund
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Milan, Italy
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19
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Warmoes M, Jaspers JE, Pham TV, Piersma SR, Oudgenoeg G, Massink MPG, Waisfisz Q, Rottenberg S, Boven E, Jonkers J, Jimenez CR. Proteomics of mouse BRCA1-deficient mammary tumors identifies DNA repair proteins with potential diagnostic and prognostic value in human breast cancer. Mol Cell Proteomics 2012; 11:M111.013334. [PMID: 22366898 DOI: 10.1074/mcp.m111.013334] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Breast cancer 1, early onset (BRCA1) hereditary breast cancer, a type of cancer with defects in the homology-directed DNA repair pathway, would benefit from the identification of proteins for diagnosis, which might also be of potential use as screening, prognostic, or predictive markers. Sporadic breast cancers with defects in the BRCA1 pathway might also be diagnosed. We employed proteomics based on one-dimensional gel electrophoresis in combination with nano-LC-MS/MS and spectral counting to compare the protein profiles of mammary tumor tissues of genetic mouse models either deficient or proficient in BRCA1. We identified a total of 3,545 proteins, of which 801 were significantly differentially regulated between the BRCA1-deficient and -proficient breast tumors. Pathway and protein complex analysis identified DNA repair and related functions as the major processes associated with the up-regulated proteins in the BRCA1-deficient tumors. In addition, by selecting highly connected nodes, we identified a BRCA1 deficiency signature of 45 proteins that enriches for homology-directed DNA repair deficiency in human gene expression breast cancer data sets. This signature also exhibits prognostic power across multiple data sets, with optimal performance in a data set enriched in tumors deficient in homology-directed DNA repair. In conclusion, by comparing mouse proteomes from BRCA1-proficient and -deficient mammary tumors, we were able to identify several markers associated with BRCA1 deficiency and a prognostic signature for human breast cancer deficient in homology-directed DNA repair.
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Affiliation(s)
- Marc Warmoes
- Oncoproteomics Laboratory, Department of Medical Oncology, VU University Medical Center, De Boelelaan 1117, 1081HV, Amsterdam, The Netherlands
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20
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Mojtahedi Z, Safaei A, Yousefi Z, Ghaderi A. Immunoproteomics of HER2-Positive and HER2-Negative Breast Cancer Patients with Positive Lymph Nodes. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2011; 15:409-18. [DOI: 10.1089/omi.2010.0131] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Zahra Mojtahedi
- Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Akbar Safaei
- Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Yousefi
- Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abbas Ghaderi
- Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran
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21
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Quantitative prediction of tumor response to neoadjuvant chemotherapy in breast cancer: novel marker genes and prediction model using the expression levels. Breast Cancer 2011; 19:37-45. [DOI: 10.1007/s12282-011-0263-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2011] [Accepted: 03/03/2011] [Indexed: 01/26/2023]
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22
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Röwer C, Koy C, Hecker M, Reimer T, Gerber B, Thiesen HJ, Glocker MO. Mass spectrometric characterization of protein structure details refines the proteome signature for invasive ductal breast carcinoma. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:440-456. [PMID: 21472563 DOI: 10.1007/s13361-010-0031-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 10/30/2010] [Accepted: 11/03/2010] [Indexed: 05/30/2023]
Abstract
Early diagnosis as well as individualized therapies are necessary to reduce the mortality of breast cancer, and personalized patient care strategies rely on novel prognostic or predictive factors. In this study, with six breast cancer patients, 2D gel analysis was applied for studying protein expression differences in order to distinguish invasive ductal breast carcinoma, the most frequent breast tumor subtype, from control samples. In total, 1203 protein spots were assembled in a 2D reference gel. Differentially abundant spots were subjected to peptide mass fingerprinting for protein identification. Twenty proteins with their corresponding 38 differentially expressed 2D gel spots were contained in our previously reported proteome signature, suggesting that distinct protein forms were contributing. In-depth MS/MS measurements enabled analyses of protein structure details of selected proteins. In protein spots that significantly contributed to our signature, we found that glyceraldehyde-3-phosphate dehydrogenase was N-terminally truncated, pyruvate kinase M2 and nucleoside diphosphate kinase A but not other isoforms of these proteins were of importance, and nucleophosmin phosphorylation at serine residues 106 and 125 were clearly identified. Principle component analysis and hierarchical clustering with normalized quantitative data from the 38 spots resulted in accurate separation of tumor from control samples. Thus, separation of tissue samples as in our initial proteome signature could be confirmed even with a different proteome analysis platform. In addition, detailed protein structure investigations enabled refining our proteome signature for invasive ductal breast carcinoma, opening the way to structure-/function studies with respect to disease processes and/or therapeutic intervention.
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Affiliation(s)
- Claudia Röwer
- Proteome Center Rostock, Department for Proteome Research, Institute of Immunology, Medical Faculty, University of Rostock, Schillingallee 69, P.O. Box 100 888, Rostock 18055, Germany
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23
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Puerto M, Campos A, Prieto A, Cameán A, de Almeida AM, Coelho AV, Vasconcelos V. Differential protein expression in two bivalve species; Mytilus galloprovincialis and Corbicula fluminea; exposed to Cylindrospermopsis raciborskii cells. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2011; 101:109-116. [PMID: 20970860 DOI: 10.1016/j.aquatox.2010.09.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 09/10/2010] [Accepted: 09/18/2010] [Indexed: 05/30/2023]
Abstract
The cyanobacteria Cylindrospermopsis raciborskii is considered a threat to aquatic organisms due to the production of the toxin cylindrospermopsin (CYN). Despite the numerous reports evidencing the toxic effects of C. raciborskii cells and CYN in different species, not much is known regarding the toxicity mechanisms associated with this toxin and the cyanobacteria. In this work, a proteomics approach based in the two-dimensional gel electrophoresis and mass spectrometry was used to study the effects of the exposure of two bivalve species, Mytilus galloprovincialis and Corbicula fluminea, to CYN producing (CYN+) and non-producing (CYN-) C. raciborskii cells. Additionally the activities of glutathione S-transferase (GST) and glutathione peroxidase (GPx) were determined. Alterations in actin and tubulin isoforms were detected in gills of both bivalve species and digestive gland of M. galloprovincialis when exposed to CYN- and CYN+ cells. Moreover, GST and GPx activities changed in gills and digestive tract of bivalves exposed to both C. raciborskii freeze dried cells, in comparison to control animals exposed to the green alga Chlorella vulgaris. These results suggest the induction of physiological stress and tissue injury in bivalves by C. raciborskii. This condition is supported by the changes observed in GPx and GST activities which indicate alterations in the oxidative stress defense mechanisms. The results also evidence the capacity of CYN non-producing C. raciborskii to induce biochemical responses and therefore its toxicity potential to bivalves. The heat shock protein 60 (HSP60), extrapallial (EP) fluid protein and triosephosphate isomerase homologous proteins from gills of M. galloprovincialis were down-regulated specifically with the presence of CYN+ C. raciborskii cells. The presence of CYN may lead to additional toxic effects in M. galloprovincialis. This work demonstrates that proteomics is a powerful approach to characterize the biochemical effects of C. raciborskii and to investigate the physiological condition of the exposed organisms.
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Affiliation(s)
- Maria Puerto
- Area of Toxicology, Faculty of Pharmacy, University of Seville, Seville, Spain
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Molecular-assisted immunohistochemical optimization. Acta Histochem 2010; 112:519-28. [PMID: 19628254 DOI: 10.1016/j.acthis.2009.05.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2008] [Revised: 05/06/2009] [Accepted: 05/19/2009] [Indexed: 11/22/2022]
Abstract
Immunohistochemistry (IHC) is an essential tool in diagnostic surgical pathology, allowing analysis of protein subcellular localization. The use of IHC by different laboratories has lead to inconsistencies in published literature for several antibodies, due to either interpretative (inter-observer variation) or technical reasons. These disparities have major implications in both clinical and research settings. In this study, we report our experience conducting an IHC optimization of antibodies against five proteins previously identified by proteomic analysis to be breast cancer biomarkers, namely 6PGL (PGLS), CAZ2 (CAPZA2), PA2G4 (EBP1) PSD2 and TKT. Large variations in the immunolocalizations and intensities were observed when manipulating the antigen retrieval method and primary antibody incubation concentration. However, the use of an independent molecular analysis method provided a clear indication in choosing the appropriate biologically and functionally relevant "staining pattern". Without this latter step, each of these contradictory results would have been a priori "technically acceptable" and would have led to different biological and functional interpretations of these proteins and potentially different applications in a routine pathology setting. Thus, we conclude that full validation of immunohistochemical protocols for scientific and clinical use will require the incorporation of biological knowledge of the biomarker and the disease in question.
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25
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Chen H, Pimienta G, Gu Y, Sun X, Hu J, Kim MS, Chaerkady R, Gucek M, Cole RN, Sukumar S, Pandey A. Proteomic characterization of Her2/neu-overexpressing breast cancer cells. Proteomics 2010; 10:3800-10. [PMID: 20960451 PMCID: PMC4327899 DOI: 10.1002/pmic.201000297] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Accepted: 08/05/2010] [Indexed: 12/12/2022]
Abstract
The receptor tyrosine kinase HER2 is an oncogene amplified in invasive breast cancer and its overexpression in mammary epithelial cell lines is a strong determinant of a tumorigenic phenotype. Accordingly, HER2-overexpressing mammary tumors are commonly indicative of a poor prognosis in patients. Several quantitative proteomic studies have employed two-dimensional gel electrophoresis in combination with MS/MS, which provides only limited information about the molecular mechanisms underlying HER2/neu signaling. In the present study, we used a SILAC-based approach to compare the proteomic profile of normal breast epithelial cells with that of Her2/neu-overexpressing mammary epithelial cells, isolated from primary mammary tumors arising in mouse mammary tumor virus-Her2/neu transgenic mice. We identified 23 proteins with relevant annotated functions in breast cancer, showing a substantial differential expression. This included overexpression of creatine kinase, retinol-binding protein 1, thymosin 4 and tumor protein D52, which correlated with the tumorigenic phenotype of Her2-overexpressing cells. The differential expression pattern of two genes, gelsolin and retinol binding protein 1, was further validated in normal and tumor tissues. Finally, an in silico analysis of published cancer microarray data sets revealed a 23-gene signature, which can be used to predict the probability of metastasis-free survival in breast cancer patients.
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MESH Headings
- Animals
- Biomarkers, Tumor/biosynthesis
- Biomarkers, Tumor/chemistry
- Biomarkers, Tumor/genetics
- Cell Count
- Cell Growth Processes/physiology
- Cell Line, Tumor
- Computer Simulation
- Female
- Humans
- Kaplan-Meier Estimate
- Mammary Neoplasms, Experimental/enzymology
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/pathology
- Mice
- Mice, Transgenic
- Proteomics/methods
- Receptor, ErbB-2/biosynthesis
- Receptor, ErbB-2/chemistry
- Receptor, ErbB-2/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Tandem Mass Spectrometry
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Affiliation(s)
- Hexin Chen
- Department of Biology, University of South Carolina, Columbia, South Carolina, USA
| | - Genaro Pimienta
- McKusick-Nathans Institute of Genetic Medicine and Departments of Biological Chemistry, Pathology and Oncology, Johns Hopkins University, Baltimore, MD 21205
| | - Yiben Gu
- Department of Biology, University of South Carolina, Columbia, South Carolina, USA
| | - Xu Sun
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina, USA
| | - Jianjun Hu
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina, USA
| | - Min-Sik Kim
- McKusick-Nathans Institute of Genetic Medicine and Departments of Biological Chemistry, Pathology and Oncology, Johns Hopkins University, Baltimore, MD 21205
| | - Raghothama Chaerkady
- McKusick-Nathans Institute of Genetic Medicine and Departments of Biological Chemistry, Pathology and Oncology, Johns Hopkins University, Baltimore, MD 21205
- Institute of Bioinformatics, International Tech Park, Bangalore 560066, India
| | - Marjan Gucek
- The Johns Hopkins School of Medicine, Mass Spectrometry and Proteomics Facility, Baltimore, Maryland, USA
| | - Robert N Cole
- The Johns Hopkins School of Medicine, Mass Spectrometry and Proteomics Facility, Baltimore, Maryland, USA
| | - Saraswati Sukumar
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Akhilesh Pandey
- McKusick-Nathans Institute of Genetic Medicine and Departments of Biological Chemistry, Pathology and Oncology, Johns Hopkins University, Baltimore, MD 21205
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26
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Ambrosino C, Tarallo R, Bamundo A, Cuomo D, Franci G, Nassa G, Paris O, Ravo M, Giovane A, Zambrano N, Lepikhova T, Jänne OA, Baumann M, Nyman TA, Cicatiello L, Weisz A. Identification of a hormone-regulated dynamic nuclear actin network associated with estrogen receptor alpha in human breast cancer cell nuclei. Mol Cell Proteomics 2010; 9:1352-67. [PMID: 20308691 PMCID: PMC2877992 DOI: 10.1074/mcp.m900519-mcp200] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Revised: 02/22/2010] [Indexed: 11/06/2022] Open
Abstract
Estrogen receptor alpha (ERalpha) is a modular protein of the steroid/nuclear receptor family of transcriptional regulators that upon binding to the hormone undergoes structural changes, resulting in its nuclear translocation and docking to specific chromatin sites. In the nucleus, ERalpha assembles in multiprotein complexes that act as final effectors of estrogen signaling to the genome through chromatin remodeling and epigenetic modifications, leading to dynamic and coordinated regulation of hormone-responsive genes. Identification of the molecular partners of ERalpha and understanding their combinatory interactions within functional complexes is a prerequisite to define the molecular basis of estrogen control of cell functions. To this end, affinity purification was applied to map and characterize the ERalpha interactome in hormone-responsive human breast cancer cell nuclei. MCF-7 cell clones expressing human ERalpha fused to a tandem affinity purification tag were generated and used to purify native nuclear ER-containing complexes by IgG-Sepharose affinity chromatography and glycerol gradient centrifugation. Purified complexes were analyzed by two-dimensional DIGE and mass spectrometry, leading to the identification of a ligand-dependent multiprotein complex comprising beta-actin, myosins, and several proteins involved in actin filament organization and dynamics and/or known to participate in actin-mediated regulation of gene transcription, chromatin dynamics, and ribosome biogenesis. Time course analyses indicated that complexes containing ERalpha and actin are assembled in the nucleus early after receptor activation by ligands, and gene knockdown experiments showed that gelsolin and the nuclear isoform of myosin 1c are key determinants for assembly and/or stability of these complexes. Based on these results, we propose that the actin network plays a role in nuclear ERalpha actions in breast cancer cells, including coordinated regulation of target gene activity, spatial and functional reorganization of chromatin, and ribosome biogenesis.
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Affiliation(s)
- Concetta Ambrosino
- From the Departments of General Pathology and
- Department of Biological and Environmental Sciences, University of Sannio, 82100 Benevento, Italy
| | | | | | | | | | | | - Ornella Paris
- From the Departments of General Pathology and
- Associazione Italiana per la Ricerca sul Cancro (AIRC) Naples Oncogenomics Center, 80145 Naples, Italy
| | - Maria Ravo
- From the Departments of General Pathology and
| | - Alfonso Giovane
- Biochemistry and Biophysics “F. Cedrangolo,” Second University of Naples, 80138 Naples, Italy
| | - Nicola Zambrano
- CEINGE Biotecnologie Avanzate and Department of Biochemistry and Medical Biotechnologies, University of Naples Federico II, 80145 Naples, Italy
| | | | | | - Marc Baumann
- Protein Chemistry Unit, Biomedicum Helsinki, University of Helsinki, 00290 Helsinki, Finland
| | - Tuula A. Nyman
- Protein Chemistry Research Group, Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland, and
| | - Luigi Cicatiello
- From the Departments of General Pathology and
- Associazione Italiana per la Ricerca sul Cancro (AIRC) Naples Oncogenomics Center, 80145 Naples, Italy
| | - Alessandro Weisz
- From the Departments of General Pathology and
- Associazione Italiana per la Ricerca sul Cancro (AIRC) Naples Oncogenomics Center, 80145 Naples, Italy
- Molecular Medicine Laboratory, Faculty of Medicine and Surgery, University of Salerno, 84081 Baronissi, Italy
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Deng M, Chen PC, Xie S, Zhao J, Gong L, Liu J, Zhang L, Sun S, Liu J, Ma H, Batra SK, Li DWC. The small heat shock protein alphaA-crystallin is expressed in pancreas and acts as a negative regulator of carcinogenesis. Biochim Biophys Acta Mol Basis Dis 2010; 1802:621-31. [PMID: 20434541 DOI: 10.1016/j.bbadis.2010.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2010] [Revised: 04/14/2010] [Accepted: 04/16/2010] [Indexed: 11/18/2022]
Abstract
The small heat shock protein alphaA-crystallin is a structural protein in the ocular lens. In addition, recent studies have also revealed that it is a molecular chaperone, an autokinase and a strong anti-apoptotic regulator. Besides its lenticular distribution, a previous study demonstrates that a detectable level of alphaA-crystallin is found in other tissues including thymus and spleen. In the present study, we have re-examined the distribution of alphaA-crystallin in various normal human and mouse tissues and found that the normal pancreas expresses a moderate level of alphaA-crystallin. Moreover, alphaA-crystallin is found significantly downregulated in 60 cases of pancreatic carcinoma of different types than it is in 11 normal human pancreas samples. In addition, we demonstrate that alphaA-crystallin can enhance the activity of the activating protein-1 (AP-1) through modulating the function of the MAP kinase, and also upregulates components of TGFbeta pathway. Finally, expression of alphaA-crystallin in a pancreatic cancer cell line, MiaPaCa, results in retarded cell migration. Together, these results suggest that alphaA-crystallin seems to negatively regulate pancreatic carcinogenesis.
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Affiliation(s)
- Mi Deng
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA
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Differential roles of Annexin A1 (ANXA1/lipocortin-1/lipomodulin) and thioredoxin binding protein-2 (TBP-2/VDUP1/TXNIP) in glucocorticoid signaling of HTLV-I-transformed T cells. Immunol Lett 2010; 131:11-8. [PMID: 20398702 DOI: 10.1016/j.imlet.2010.04.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Revised: 04/08/2010] [Accepted: 04/08/2010] [Indexed: 01/26/2023]
Abstract
Glucocorticoid (GC) is widely used for therapeutic purposes in immunological and hematological disorders. Annexin A1 (ANXA1/lipocortin-1/lipomodulin), a GC-inducible molecule, was regarded as a vital anti-inflammatory mediator of GC. Thioredoxin binding protein-2 (TBP-2/VDUP1/TXNIP), a regulator of redox reactions, cell growth and lipid metabolism, was also reportedly induced by GC. HTLV-I infected T cells undergo the transition from the IL-2 dependent to IL-2 independent growth during the long-term culture in vitro. We found that these T cells responded to GC with growth arrest and apoptosis in the IL-2 dependent growth stage, whereas they failed to respond to GC after their growth had shifted into the IL-2 independent stage. Here we employed these T cell lines and studied the roles of ANXA1 and TBP-2 in mediating GC-induced apoptosis. In GC-sensitive T cells, ANXA1 expression was negligible and unaffected by GC treatment, whereas TBP-2 was expressed and induced by GC treatment. In GC-resistant T cells, however, ANXA1 was highly expressed regardless of GC treatment and promoted cellular proliferation. In contrast, TBP-2 expression was lost and could not mediate the GC-induced apoptosis. In conclusion, these results suggest that TBP-2, but not ANXA1, is directly involved in the switching of GC sensitivity and GC resistance in HTLV-I infected T cell lines, whereas ANXA1 may be a biomarker indicative of the advanced stage of the transformation.
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Xu X, Qiao M, Zhang Y, Jiang Y, Wei P, Yao J, Gu B, Wang Y, Lu J, Wang Z, Tang Z, Sun Y, Wu W, Shi Q. Quantitative proteomics study of breast cancer cell lines isolated from a single patient: Discovery of TIMM17A as a marker for breast cancer. Proteomics 2010; 10:1374-90. [DOI: 10.1002/pmic.200900380] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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30
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Jung EJ, Moon HG, Park ST, Cho BI, Lee SM, Jeong CY, Ju YT, Jeong SH, Lee YJ, Choi SK, Ha WS, Lee JS, Kang KR, Hong SC. Decreased annexin A3 expression correlates with tumor progression in papillary thyroid cancer. Proteomics Clin Appl 2010; 4:528-37. [PMID: 21137070 DOI: 10.1002/prca.200900063] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2009] [Revised: 11/30/2009] [Accepted: 12/15/2009] [Indexed: 01/21/2023]
Abstract
PURPOSE The aim of this study is to identify the potential tumor markers that function in carcinogenesis and tumor progression, thus providing important diagnostic and prognostic information. EXPERIMENTAL DESIGN We performed 2-D gel electrophoresis and MALDI-TOF MS to investigate the differentially expressed proteins in 25 papillary thyroid carcinoma tissues. For validation of candidate proteins and investigation of clinical significance, we performed Western, Northern blot analysis and immunohistochemical staining. RESULTS Our proteomic analyses revealed significantly decreased annexin A3 expression in papillary thyroid carcinoma at both the protein and mRNA levels, compared with normal thyroid tissue. ANXA3 immunoreactivity was not significantly correlated with lymph node metastasis, multifocality, capsular invasion or perithyroidal extension in thyroid cancer. However, the tumor subgroup with a lymph node metastasis score of >3 displayed significantly lower ANXA3 expression than did subgroups with negative and ≤3 scores (p=0.001). Moreover, ANXA3 expression was markedly lower in large tumors (>1 cm in diameter) than in microcarcinomas (p=0.001). CONCLUSION AND CLINICAL RELEVANCE Decreased expression of ANXA3 in papillary thyroid cancer supports the idea that ANXA3 may be an effective marker of microcarcinoma, and a negative predictor of papillary thyroid cancer progression.
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Affiliation(s)
- Eun-Jung Jung
- Department of Surgery, School of Medicine, Gyeongsang National Unniversity, Gyeongsang National University Hospital, Gyeongnam Regional Cancer Center, Jinju, South Korea
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31
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Deighton RF, McGregor R, Kemp J, McCulloch J, Whittle IR. Glioma pathophysiology: insights emerging from proteomics. Brain Pathol 2010; 20:691-703. [PMID: 20175778 DOI: 10.1111/j.1750-3639.2010.00376.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Proteomics is increasingly employed in both neurological and oncological research to provide insight into the molecular basis of disease but rarely has a coherent, novel pathophysiological insight emerged. Gliomas account for >50% of adult primary intracranial tumors, with malignant gliomas (anaplastic astrocytomas and glioblastoma multiforme) being the most common. In glioma, the application of proteomic technology has identified altered protein expression but without consistency of these alterations or their biological significance being established. A systematic review of multiple independent proteomic analyses of glioma has demonstrated alterations of 99 different proteins. Importantly 10 of the 99 proteins found differentially expressed in glioma [PHB, Hsp20, serum albumin, epidermal growth factor receptor (EGFR), EA-15, RhoGDI, APOA1, GFAP, HSP70, PDIA3] were identified in multiple publications. An assessment of protein-protein interactions between these proteins compiled using novel web-based technology, revealed a robust and cohesive network for glioblastoma. The protein network discovered (containing TP53 and RB1 at its core) compliments recent findings in genomic studies of malignant glioma. The novel perspective provided by network analysis indicates that the potential of this technology to explore crucial aspects of glioma pathophysiology can now be realized but only if the conceptual and technical limitations highlighted in this review are addressed.
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Affiliation(s)
- Ruth F Deighton
- Department of Clinical Neurosciences, Western General Hospital and Centre for Cognitive and Neural Systems, University of Edinburgh, Scotland, UK.
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32
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Röwer C, Vissers JPC, Koy C, Kipping M, Hecker M, Reimer T, Gerber B, Thiesen HJ, Glocker MO. Towards a proteome signature for invasive ductal breast carcinoma derived from label-free nanoscale LC-MS protein expression profiling of tumorous and glandular tissue. Anal Bioanal Chem 2009; 395:2443-56. [PMID: 19876624 DOI: 10.1007/s00216-009-3187-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Revised: 09/18/2009] [Accepted: 09/23/2009] [Indexed: 11/26/2022]
Abstract
As more and more alternative treatments become available for breast carcinoma, there is a need to stratify patients and individual molecular information seems to be suitable for this purpose. In this study, we applied label-free protein quantitation by nanoscale LC-MS and investigated whether this approach could be used for defining a proteome signature for invasive ductal breast carcinoma. Tissue samples from healthy breast and tumor were collected from three patients. Protein identifications were based on LC-MS peptide fragmentation data which were obtained simultaneously to the quantitative information. Hereby, an invasive ductal breast carcinoma proteome signature was generated which contains 60 protein entries. The on-column concentrations for osteoinductive factor, vimentin, GAP-DH, and NDKA are provided as examples. These proteins represent distinctive gene ontology groups of differentially expressed proteins and are discussed as risk markers for primary tumor pathogenesis. The developed methodology has been found well applicable in a clinical environment in which standard operating procedures can be kept; a prerequisite for the definition of molecular parameter sets that shall be capable for stratification of patients.
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MESH Headings
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/metabolism
- Blotting, Western
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/pathology
- Chromatography, Liquid/methods
- Computational Biology
- Female
- Humans
- Immunoenzyme Techniques
- Nanotechnology
- Proteome/analysis
- Proteomics/methods
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods
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Affiliation(s)
- Claudia Röwer
- Proteome Center Rostock, University of Rostock, 18055, Rostock, Germany
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33
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Abstract
The desire for biomarkers for diagnosis and prognosis of diseases has never been greater. With the availability of genome data and an increased availability of proteome data, the discovery of biomarkers has become increasingly feasible. However, the task is daunting and requires collaborations among researchers working in the fields of transplantation, immunology, genetics, molecular biology, biostatistics and bioinformatics. With the advancement of high throughput omic techniques such as genomics and proteomics (collectively known as proteogenomics), efforts have been made to develop diagnostic tools from new and to-be discovered biomarkers. Yet biomarker validation, particularly in organ transplantation, remains challenging because of the lack of a true gold standard for diagnostic categories and analytical bottlenecks that face high-throughput data deconvolution. Even though microarray technique is relatively mature, proteomics is still growing with regards to data normalization and analysis methods. Study design, sample selection and rigorous data analysis are the critical issues for biomarker discovery using high-throughput proteogenomic technologies that combine the use and strengths of both genomics and proteomics. In this review, we look into the current status and latest developments in the field of biomarker discovery using genomics and proteomics related to organ transplantation, with an emphasis on the evolution of proteomic technologies.
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Affiliation(s)
- Tara K Sigdel
- Department of Pediatrics-Nephrology, Stanford University Medical School, Stanford University, Stanford, CA 94305, USA
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