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Single-Cell RNA Sequencing Reveals the Role of Epithelial Cell Marker Genes in Predicting the Prognosis of Colorectal Cancer Patients. DISEASE MARKERS 2022; 2022:8347125. [PMID: 35968507 PMCID: PMC9372514 DOI: 10.1155/2022/8347125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/09/2022] [Accepted: 07/21/2022] [Indexed: 11/17/2022]
Abstract
Single-cell RNA sequencing (scRNA-seq) is increasingly used in studies on gastrointestinal cancers. This study investigated the prognostic value of epithelial cell-associated biomarkers in colorectal cancer (CRC) using scRNA-seq data. We downloaded and analysed scRNA-seq data from four CRC samples from the Gene Expression Omnibus (GEO), and we identified marker genes of malignant epithelial cells (MECs) using CRC transcriptome and clinical data downloaded from The Cancer Genome Atlas (TCGA) and GEO as training and validation cohorts, respectively. In the TCGA training cohort, weighted gene correlation network analysis, univariate Cox proportional hazard model (Cox) analysis, and least absolute shrinkage and selection operator regression analysis were performed on the marker genes of MEC subsets to identify a signature of nine prognostic MEC-related genes (MECRGs) and calculate a risk score based on the signature. CRC patients were divided into high- and low-risk groups according to the median risk score. We found that the MECRG risk score was significantly correlated with the clinical features and overall survival of CRC patients, and that CRC patients in the high-risk group showed a significantly shorter survival time. The univariate and multivariate Cox regression analyses showed that the MECRG risk score can serve as an independent prognostic factor for CRC patients. Gene set enrichment analysis revealed that the MECRG signature genes are involved in fatty acid metabolism, p53 signalling, and other pathways. To increase the clinical application value, we constructed a MECRG nomogram by combining the MECRG risk score with other independent prognostic factors. The validity of the nomogram is based on receiver operating characteristics and calibration curves. The MECRG signature and nomogram models were well validated in the GEO dataset. In conclusion, we established an epithelial cell marker gene-based risk assessment model based on scRNA-seq analysis of CRC samples for predicting the prognosis of CRC patients.
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Janacova L, Faktor J, Capkova L, Paralova V, Pospisilova A, Podhorec J, Ebhardt HA, Hrstka R, Nenutil R, Aebersold R, Bouchal P. SWATH-MS Analysis of FFPE Tissues Identifies Stathmin as a Potential Marker of Endometrial Cancer in Patients Exposed to Tamoxifen. J Proteome Res 2020; 19:2617-2630. [PMID: 32343582 DOI: 10.1021/acs.jproteome.0c00064] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A specific form of endometrial cancer (EC) can develop in breast cancer patients previously treated with tamoxifen (ET), an antagonist of estrogen receptor (ER) that inhibits proliferation of ER positive breast cancer. ET tumors have a different phenotype than endometrial tumors, which typically develop de novo without previous exposure to tamoxifen (EN). Here we aimed to identify specific protein markers that could serve as specific molecular targets in either phenotype. A set of total 45 formalin-fixed paraffin-embedded (FFPE) endometrial tumor tissues and adjacent myometrium tissue samples were analyzed using LC-MS/MS in SWATH-MS mode. We found that calcyphosin (CAPS) levels were elevated in EN tumors compared to ET tumors. The higher CAPS level in EC tissue invading to myometrium supports its relationship to EC aggressiveness. Further, stathmin (STMN1) levels were found significantly elevated in ET versus EN tumors and significantly associated with patient survival. This finding connects elevated levels of this cell cycle regulating, proliferation-associated protein with tamoxifen exposure. In summary, using SWATH-MS we show that CAPS and STMN1 should be recognized as clinicopathologically different EC markers of which STMN1 is specifically connected with a previous tamoxifen exposition.
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Affiliation(s)
- Lucia Janacova
- Department of Biochemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Jakub Faktor
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic
| | - Lenka Capkova
- Department of Biochemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Vendula Paralova
- Department of Biochemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Anna Pospisilova
- Department of Biochemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Jan Podhorec
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic.,Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Holger Alexander Ebhardt
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute for Technology (ETH) Zurich, Zurich, Switzerland.,Systems Biology Ireland, University College Dublin, Dublin, Ireland
| | - Roman Hrstka
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic
| | - Rudolf Nenutil
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute for Technology (ETH) Zurich, Zurich, Switzerland.,Faculty of Science, University of Zurich, Zurich, Switzerland
| | - Pavel Bouchal
- Department of Biochemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
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Proteomic Advances in Glial Tumors through Mass Spectrometry Approaches. ACTA ACUST UNITED AC 2019; 55:medicina55080412. [PMID: 31357616 PMCID: PMC6722920 DOI: 10.3390/medicina55080412] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/22/2019] [Accepted: 07/24/2019] [Indexed: 01/25/2023]
Abstract
Being the fourth leading cause of cancer-related death, glial tumors are highly diverse tumor entities characterized by important heterogeneity regarding tumor malignancy and prognosis. However, despite the identification of important alterations in the genome of the glial tumors, there remains a gap in understanding the mechanisms involved in glioma malignancy. Previous research focused on decoding the genomic alterations in these tumors, but due to intricate cellular mechanisms, the genomic findings do not correlate with the functional proteins expressed at the cellular level. The development of mass spectrometry (MS) based proteomics allowed researchers to study proteins expressed at the cellular level or in serum that may provide new insights on the proteins involved in the proliferation, invasiveness, metastasis and resistance to therapy in glial tumors. The integration of data provided by genomic and proteomic approaches into clinical practice could allow for the identification of new predictive, diagnostic and prognostic biomarkers that will improve the clinical management of patients with glial tumors. This paper aims to provide an updated review of the recent proteomic findings, possible clinical applications, and future research perspectives in diffuse astrocytic and oligodendroglial tumors, pilocytic astrocytomas, and ependymomas.
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Yang M, Sun Y, Sun J, Wang Z, Zhou Y, Yao G, Gu Y, Zhang H, Zhao H. Differentially expressed and survival-related proteins of lung adenocarcinoma with bone metastasis. Cancer Med 2018. [PMID: 29522283 PMCID: PMC5911611 DOI: 10.1002/cam4.1363] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Despite recent advances in targeted and immune‐based therapies, the poor prognosis of lung adenocarcinoma (LUAD) with bone metastasis (BM) remains a challenge. First, two‐dimensional gel electrophoresis (2‐DE) was used to identify proteins that were differentially expressed in LUAD with BM, and then matrix‐assisted laser desorption/ionization time of flight mass spectrometry (MALDI‐TOF‐MS) was used to identify these proteins. Second, the Cancer Genome Atlas (TCGA) was used to identify mutations in these differentially expressed proteins and Kaplan–Meier plotter (KM Plotter) was used to generate survival curves for the analyzed cases. Immunohistochemistry (IHC) was used to check the expression of proteins in 28 patients with BM and nine patients with LUAD. Lastly, the results were analyzed with respect to clinical features and patient's follow‐up. We identified a number of matched proteins from 2‐DE. High expression of enolase 1 (ENO1) (HR = 1.67, logrank P = 1.9E‐05), ribosomal protein lateral stalk subunit P2 (RPLP2) (HR = 1.77, logrank P = 2.9e‐06), and NME/NM23 nucleoside diphosphate kinase 2 (NME1‐NME2) (HR = 2.65, logrank P = 3.9E‐15) was all significantly associated with poor survival (P < 0.05). Further, ENO1 was upregulated (P = 0.0004) and calcyphosine (CAPS1) was downregulated (P = 5.34E‐07) in TCGA LUAD RNA‐seq expression data. IHC revealed that prominent ENO1 staining (OR = 7.5, P = 0.034) and low levels of CAPS1 (OR = 0.01, P < 0.0001) staining were associated with BM incidence. Finally, we found that LUAD patients with high expression of ENO1 and RPLP2 had worse overall survival. This is the first instance where the genes ENO1, RPLP2, NME1‐NME2 and CAPS1 were associated with disease severity and progression in LUAD patients with BM. Thus, with this study, we have identified potential biomarkers and therapeutic targets for this disease.
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Affiliation(s)
- Mengdi Yang
- Department of Internal Oncology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
| | - Yi Sun
- Department of Radiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
| | - Jing Sun
- Department of Internal Oncology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
| | - Zhiyu Wang
- Department of Internal Oncology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
| | - Yiyi Zhou
- Department of Internal Oncology, Shanghai Sixth People's Hospital, Soochow University, Shanghai, 200233, China
| | - Guangyu Yao
- Department of Internal Oncology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
| | - Yifeng Gu
- Department of Radiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
| | - Huizhen Zhang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
| | - Hui Zhao
- Department of Internal Oncology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
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Li F, Zhu D, Yang Y, Wu K, Zhao S. Overexpression of calcyphosine is associated with poor prognosis in esophageal squamous cell carcinoma. Oncol Lett 2017; 14:6231-6237. [PMID: 29113272 DOI: 10.3892/ol.2017.6973] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 07/27/2017] [Indexed: 12/19/2022] Open
Abstract
Calcyphosine (CAPS), a calcium-binding protein, has been identified as a potential diagnostic and prognostic biomarker in several human carcinomas. However, little is known about CAPS in esophageal squamous cell carcinoma (ESCC). The present study aimed to investigate the expression levels of CAPS in ESCC tissues and evaluate its clinicopathological significance. Reverse transcription-quantitative polymerase chain reaction and immunohistochemical staining were conducted to detect the expression of CAPS in ESCC tissues and adjacent non-cancerous tissues. ESCC samples exhibited higher levels of CAPS mRNA than paired non-cancerous samples (P=0.0015), and the mRNA level of CAPS was positively associated with histological grade (P=0.0013) and tumor invasion depth (P=0.0206). In addition, Kaplan-Meier survival analysis revealed that patients with high CAPS expression experienced significantly shorter 5-year overall survival times than those with low CAPS expression (P=0.0112). Multivariate analysis demonstrated that CAPS protein expression was an independent prognostic biomarker for patients with ESCC. In conclusion, the findings of the present study demonstrated that CAPS may represent a novel diagnostic indicator and an independent prognostic biomarker in ESCC.
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Affiliation(s)
- Feng Li
- Department of Thoracic Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Dengyan Zhu
- Department of Thoracic Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Yang Yang
- Department of Thoracic Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Kai Wu
- Department of Thoracic Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Song Zhao
- Department of Thoracic Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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Kerr KF, Avery CL, Lin HJ, Raffield LM, Zhang QS, Browning BL, Browning SR, Conomos MP, Gogarten SM, Laurie CC, Sofer T, Thornton TA, Hohensee C, Jackson RD, Kooperberg C, Li Y, Méndez-Giráldez R, Perez MV, Peters U, Reiner AP, Zhang ZM, Yao J, Sotoodehnia N, Taylor KD, Guo X, Lange LA, Soliman EZ, Wilson JG, Rotter JI, Heckbert SR, Jain D, Whitsel EA. Genome-wide association study of heart rate and its variability in Hispanic/Latino cohorts. Heart Rhythm 2017; 14:1675-1684. [PMID: 28610988 PMCID: PMC5671896 DOI: 10.1016/j.hrthm.2017.06.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Although time-domain measures of heart rate variability (HRV) are used to estimate cardiac autonomic tone and disease risk in multiethnic populations, the genetic epidemiology of HRV in Hispanics/Latinos has not been characterized. OBJECTIVE The purpose of this study was to conduct a genome-wide association study of heart rate (HR) and its variability in the Hispanic Community Health Study/Study of Latinos, Multi-Ethnic Study of Atherosclerosis, and Women's Health Initiative Hispanic SNP-Health Association Resource project (n = 13,767). METHODS We estimated HR (bpm), standard deviation of normal-to-normal interbeat intervals (SDNN, ms), and root mean squared difference in successive, normal-to-normal interbeat intervals (RMSSD, ms) from resting, standard 12-lead ECGs. We estimated associations between each phenotype and 17 million genotyped or imputed single nucleotide polymorphisms (SNPs), accounting for relatedness and adjusting for age, sex, study site, and ancestry. Cohort-specific estimates were combined using fixed-effects, inverse-variance meta-analysis. We investigated replication for select SNPs exceeding genome-wide (P <5 × 10-8) or suggestive (P <10-6) significance thresholds. RESULTS Two genome-wide significant SNPs replicated in a European ancestry cohort, 1 one for RMSSD (rs4963772; chromosome 12) and another for SDNN (rs12982903; chromosome 19). A suggestive SNP for HR (rs236352; chromosome 6) replicated in an African-American cohort. Functional annotation of replicated SNPs in cardiac and neuronal tissues identified potentially causal variants and mechanisms. CONCLUSION This first genome-wide association study of HRV and HR in Hispanics/Latinos underscores the potential for even modestly sized samples of non-European ancestry to inform the genetic epidemiology of complex traits.
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Affiliation(s)
- Kathleen F Kerr
- Department of Biostatistics, University of Washington, Seattle, Washington.
| | - Christy L Avery
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Henry J Lin
- The Institute for Translational Genomics and Population Sciences, LABioMed at Harbor-UCLA Medical Center, Torrance, California
| | - Laura M Raffield
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Qian S Zhang
- Department of Biostatistics, University of Washington, Seattle, Washington; Department of Medicine, University of Washington, Seattle, Washington
| | - Brian L Browning
- Department of Medicine, University of Washington, Seattle, Washington
| | - Sharon R Browning
- Department of Biostatistics, University of Washington, Seattle, Washington
| | - Matthew P Conomos
- Department of Biostatistics, University of Washington, Seattle, Washington
| | | | - Cathy C Laurie
- Department of Biostatistics, University of Washington, Seattle, Washington
| | - Tamar Sofer
- Department of Biostatistics, University of Washington, Seattle, Washington
| | - Timothy A Thornton
- Department of Biostatistics, University of Washington, Seattle, Washington
| | - Chancellor Hohensee
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Rebecca D Jackson
- Division of Endocrinology, Diabetes and Metabolism, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Charles Kooperberg
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Yun Li
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Raúl Méndez-Giráldez
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Marco V Perez
- Center for Inherited Cardiovascular Disease, Division of Cardiovascular Medicine, Stanford University, Palo Alto, California
| | - Ulrike Peters
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Alexander P Reiner
- Department of Epidemiology, University of Washington, Seattle, Washington
| | - Zhu-Ming Zhang
- Epidemiological Cardiology Research Center (EPICARE), Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Jie Yao
- The Institute for Translational Genomics and Population Sciences, LABioMed at Harbor-UCLA Medical Center, Torrance, California
| | - Nona Sotoodehnia
- Department of Epidemiology, University of Washington, Seattle, Washington; Department of Medicine, University of Washington, Seattle, Washington; Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, Washington
| | - Kent D Taylor
- The Institute for Translational Genomics and Population Sciences, LABioMed at Harbor-UCLA Medical Center, Torrance, California
| | - Xiuqing Guo
- The Institute for Translational Genomics and Population Sciences, LABioMed at Harbor-UCLA Medical Center, Torrance, California
| | - Leslie A Lange
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Elsayed Z Soliman
- Epidemiological Cardiology Research Center (EPICARE), Wake Forest School of Medicine, Winston Salem, North Carolina
| | - James G Wilson
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi
| | - Jerome I Rotter
- The Institute for Translational Genomics and Population Sciences, LABioMed at Harbor-UCLA Medical Center, Torrance, California
| | - Susan R Heckbert
- Department of Epidemiology, University of Washington, Seattle, Washington; Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, Washington
| | - Deepti Jain
- Department of Biostatistics, University of Washington, Seattle, Washington
| | - Eric A Whitsel
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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