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Xie L, Kong Q, Ai M, He A, Yao B, Zhang L, Zhang K, Zhu C, Li Y, Xia L, Tian R, Xu R. Spatial Proteomic Profiling of Colorectal Cancer Revealed Its Tumor Microenvironment Heterogeneity. J Proteome Res 2024; 23:3342-3352. [PMID: 39026393 DOI: 10.1021/acs.jproteome.3c00719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Colorectal cancer is a predominant malignancy with a second mortality worldwide. Despite its prevalence, therapeutic options remain constrained and surgical operation is still the most useful therapy. In this regard, a comprehensive spatially resolved quantitative proteome atlas was constructed to explore the functional proteomic landscape of colorectal cancer. This strategy integrates histopathological analysis, laser capture microdissection, and proteomics. Spatial proteome profiling of 200 tissue section samples facilitated by the fully integrated sample preparation technology SISPROT enabled the identification of more than 4000 proteins on the Orbitrap Exploris 240 from 2 mm2 × 10 μm tissue sections. Compared with normal adjacent tissues, we identified a spectrum of cancer-associated proteins and dysregulated pathways across various regions of colorectal cancer including ascending colon, transverse colon, descending colon, sigmoid colon, and rectum. Additionally, we conducted proteomic analysis on tumoral epithelial cells and paracancerous epithelium from early to advanced stages in hallmark rectum cancer and sigmoid colon cancer. Bioinformatics analysis revealed functional proteins and cell-type signatures associated with different regions of colorectal tumors, suggesting potential clinical implications. Overall, this study provides a comprehensive spatially resolved functional proteome landscape of colorectal cancer, serving as a valuable resource for exploring potential biomarkers and therapeutic targets.
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Affiliation(s)
- Lifen Xie
- Department of Oncology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), 1017 Dongmen North Road, Shenzhen 518020, China
- The First Affiliated Hospital, Jinan University, 613 Huangpu Avenue West Road, Guangzhou 510632, China
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Qian Kong
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Meiling Ai
- Department of Oncology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), 1017 Dongmen North Road, Shenzhen 518020, China
- The First Affiliated Hospital, Jinan University, 613 Huangpu Avenue West Road, Guangzhou 510632, China
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - An He
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Bin Yao
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Luobin Zhang
- Department of Oncology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), 1017 Dongmen North Road, Shenzhen 518020, China
| | - Keren Zhang
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Chaowei Zhu
- Department of Gastrointestinal Surgery, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), 1017 Dongmen North Road, Shenzhen 518020, China
| | - Yangqiu Li
- Department of Hematology, First Affiliated Hospital, Institute of Hematology, School of Medicine, Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, 613 Huangpu Avenue West Road, Guangzhou 510632, China
| | - Ligang Xia
- Department of Gastrointestinal Surgery, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), 1017 Dongmen North Road, Shenzhen 518020, China
| | - Ruijun Tian
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Ruilian Xu
- Department of Oncology, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), 1017 Dongmen North Road, Shenzhen 518020, China
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Pan YB, Xu WJ, Huang MS, Lu YD, Zhou YJ, Teng Y, Gong JB, Fu XY, Mao XL, Li SW. Anoikis-related signature identifies tumor microenvironment landscape and predicts prognosis and drug sensitivity in colorectal cancer. J Cancer 2024; 15:841-857. [PMID: 38213716 PMCID: PMC10777033 DOI: 10.7150/jca.91627] [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] [Received: 10/28/2023] [Accepted: 11/28/2023] [Indexed: 01/13/2024] Open
Abstract
Background: Anoikis, a mechanism of programmed apoptosis, plays an important role in growth and metastasis of tumors. However, there are still few available comprehensive reports on the impact of anoikis on colorectal cancer. Method: A clustering analysis was done on 133 anoikis-related genes in GSE39582, and we compared clinical features between clusters, the tumor microenvironment was analyzed with algorithms such as "Cibersort" and "ssGSEA". We investigated risk scores of clinical feature groups and anoikis-associated gene mutations after creating a predictive model. We incorporated clinical traits to build a nomogram. Additionally, the quantitative real-time PCR was employed to investigate the mRNA expression of selected anoikis-associated genes. Result: We identified two anoikis-related clusters with distinct prognoses, clinical characteristics, and biological functions. One of the clusters was associated with anoikis resistance, which activated multiple pathways encouraging tumor metastasis. In our prognostic model, oxaliplatin may be a sensitive drug for low-risk patients. The nomogram showed good ability to predict survival time. And SIRT3, PIK3CA, ITGA3, DAPK1, and CASP3 increased in CRC group through the PCR assay. Conclusion: Our study identified two distinct modes of anoikis in colorectal cancer, with active metastasis-promoting pathways inducing an anti-anoikis subtype, which has a stronger propensity for metastasis and a worse prognosis than an anoikis-activated subtype. Massive immune cell infiltration may be an indicator of anoikis resistance. Anoikis' role in the colorectal cancer remains to be investigated.
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Affiliation(s)
- Yu-Biao Pan
- Taizhou Hospital of Zhejiang Province, Zhejiang University, Linhai, China
| | - Wang-jin Xu
- Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Meng-sha Huang
- Hospital of Huangyan affiliated to Wenzhou Medical University, Huangyan, Zhejiang, China
| | - Yan-di Lu
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China
| | - Yi-jing Zhou
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China
| | - Ya Teng
- Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Jian-bin Gong
- Taizhou Hospital of Zhejiang Province, Zhejiang University, Linhai, China
| | - Xin-yu Fu
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China
| | - Xin-li Mao
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China
- Institute of Digestive Disease, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Shao-wei Li
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China
- Institute of Digestive Disease, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
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Yang X, Yu Y, Wang Z, Wu P, Su X, Wu Z, Gan J, Zhang D. NOX4 has the potential to be a biomarker associated with colon cancer ferroptosis and immune infiltration based on bioinformatics analysis. Front Oncol 2022; 12:968043. [PMID: 36249057 PMCID: PMC9554470 DOI: 10.3389/fonc.2022.968043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/07/2022] [Indexed: 11/20/2022] Open
Abstract
Background Colon cancer (CC) is a common tumor, but its pathogenesis is still not well understood. Competitive endogenous RNA (ceRNA) theory, ferroptosis and tumor immune infiltration may be the mechanisms of the development of cancer. The purpose of the study is to seek genes connected with both immunity and ferroptosis, and provide important molecular basis for early noninvasive diagnosis and immunotherapy of CC. Methods We extracted messenger RNA (mRNA), microRNA (miRNA), and long noncoding RNA (lncRNA) data of CC from The Cancer Genome Atlas database (TCGA), identified the differentially expressed mRNA (DEmRNA), miRNA (DEmiRNA) and lncRNA (DElncRNA), then constructed a ceRNA network. Venn overlap analysis was used to identify genes associated with immunity and ferroptosis in ceRNA network. The expression and prognosis of target genes were analyzed via Gene Expression Profiling Interactive Analysis (GEPIA) and PrognoScan database, and we analysed the related functions and signaling pathways of target genes by enrichment analysis. The correlation between target genes and tumor immune infiltrating was explored by CIBERSORT and spearman correlation analysis. Finally, the expression of target genes was detected via quantitative reverse transcription-PCR (qRT-PCR) in CC and normal colon tissues. Results Results showed that there were 4 DElncRNA, 4 DEmiRNA and 126 DEmRNA in ceRNA network. NADPH oxidase 4 protein (NOX4) was a DEmRNA associated with immunity and ferroptosis in ceRNA network. NOX4 was highly expressed in CC and connected with unfavourable prognosis. NOX4 was obviously enriched in pathways connected with carcinogenesis and significantly correlated with six kinds of immune cells. Immune checkpoints and NOX4 spearman correlation analysis showed that the expression of NOX4 was positively related to programmed cell death protein 1 (PD-1)-PDCD1, programmed cell death-Ligand 1 (PD-L1)-CD274 and cytotoxic T-lymphocyte-associated protein 4 (CTLA4). Conclusions To conclude, our study suggests that NOX4 is associated with both ferroptosis and tumor immunity, and might be a biomarker associated with the carcinogenesis, prognosis of CC and a potential target of CC immunotherapy.
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Affiliation(s)
- Xiaoping Yang
- Key Laboratory of Digestive Diseases of Gansu Province, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Yi Yu
- Department of Gastroenterology, Lanzhou University Second Hospital, Lanzhou, China
| | - Zirui Wang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Pingfan Wu
- Department of Pathology, The 940th Hospital of the Joint Logistic Support of the People’s Liberation Army, Lanzhou, China
| | - Xiaolu Su
- Department of Pathology, Lanzhou University Second Hospital, Lanzhou, China
| | - Zhiping Wu
- Department of Gastroenterology, Lanzhou University Second Hospital, Lanzhou, China
| | - Jianxin Gan
- Department of general surgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Dekui Zhang
- Key Laboratory of Digestive Diseases of Gansu Province, Lanzhou University Second Hospital, Lanzhou, China
- Department of Gastroenterology, Lanzhou University Second Hospital, Lanzhou, China
- *Correspondence: Dekui Zhang,
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Qi W, Yan Q, Lv M, Song D, Wang X, Tian K. Prognostic Signature of Osteosarcoma Based on 14 Autophagy-Related Genes. Pathol Oncol Res 2021; 27:1609782. [PMID: 34335109 PMCID: PMC8322075 DOI: 10.3389/pore.2021.1609782] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 06/04/2021] [Indexed: 12/14/2022]
Abstract
Background: Osteosarcoma is a common malignancy of bone with inferior survival outcome. Autophagy can exert multifactorial influence on tumorigenesis and tumor progression. However, the specific function of genes related to autophagy in the prognosis of osteosarcoma patients remains unclear. Herein, we aimed to explore the association of genes related to autophagy with the survival outcome of osteosarcoma patients. Methods: The autophagy-associated genes that were related to the prognosis of osteosarcoma were optimized by LASSO Cox regression analysis. The survival of osteosarcoma patients was forecasted by multivariate Cox regression analysis. The immune infiltration status of 22 immune cell types in osteosarcoma patients with high and low risk scores was compared by using the CIBERSORT tool. Results: The risk score model constructed according to 14 autophagy-related genes (ATG4A, BAK1, BNIP3, CALCOCO2, CCL2, DAPK1, EGFR, FAS, GRID2, ITGA3, MYC, RAB33B, USP10, and WIPI1) could effectively predict the prognosis of patients with osteosarcoma. A nomogram model was established based on risk score and metastasis. Conclusion: Autophagy-related genes were identified as pivotal prognostic signatures, which could guide the clinical decision making in the treatment of osteosarcoma.
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Affiliation(s)
- Wei Qi
- Department of West Hospital Orthopaedic Trauma, Zibo Central Hospital, Zibo, China
| | - Qian Yan
- Department of Information Section, Zibo Central Hospital, Zibo, China
| | - Ming Lv
- Department of West Hospital Orthopaedic Trauma, Zibo Central Hospital, Zibo, China
| | - Delei Song
- Department of West Hospital Orthopaedic Trauma, Zibo Central Hospital, Zibo, China
| | - Xianbin Wang
- Department of Eastern Hospital Orthopaedic Trauma, Zibo Central Hospital, Zibo, China
| | - Kangsong Tian
- Department of West Hospital Orthopaedic Trauma, Zibo Central Hospital, Zibo, China
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5
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Busuioc C, Ciocan-Cartita CA, Braicu C, Zanoaga O, Raduly L, Trif M, Muresan MS, Ionescu C, Stefan C, Crivii C, Al Hajjar N, Mǎrgǎrit S, Berindan-Neagoe I. Epithelial-Mesenchymal Transition Gene Signature Related to Prognostic in Colon Adenocarcinoma. J Pers Med 2021; 11:jpm11060476. [PMID: 34073426 PMCID: PMC8229043 DOI: 10.3390/jpm11060476] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/13/2021] [Accepted: 05/21/2021] [Indexed: 12/12/2022] Open
Abstract
Colon adenocarcinoma (COAD) remains an important cause of cancer-related mortality worldwide. Epithelial–mesenchymal transition (EMT) is a key mechanism, promoting not only the invasive or metastatic phenotype but also resistance to therapy. Using bioinformatics approaches, we studied the alteration on EMT related genes and its implication on COAD prognostic based on public datasets. For the EMT mechanisms, two overexpressed genes were identified (NOX4 and IGF2BP3), as well as five downregulated genes (BMP5, DACT3, EEF1A2, GCNT2 and SFRP1) that were related to prognosis in COAD. A qRT-PCR validation step was conducted in a COAD patient cohort comprising of 29 tumor tissues and 29 normal adjacent tissues, endorsing the expression level for BMP5, as well as for two of the miRNAs targeting key EMT related genes, revealing upregulation of miR-27a-5p and miR-146a-5p. The EMT signature can be used to develop a panel of biomarkers for recurrence prediction in COAD patients, which may contribute to the improvement of risk stratification for the patients.
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Affiliation(s)
- Constantin Busuioc
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania; (C.B.); (C.A.C.-C.); (C.B.); (O.Z.); (L.R.); (I.B.-N.)
| | - Cristina Alexandra Ciocan-Cartita
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania; (C.B.); (C.A.C.-C.); (C.B.); (O.Z.); (L.R.); (I.B.-N.)
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania; (C.B.); (C.A.C.-C.); (C.B.); (O.Z.); (L.R.); (I.B.-N.)
| | - Oana Zanoaga
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania; (C.B.); (C.A.C.-C.); (C.B.); (O.Z.); (L.R.); (I.B.-N.)
| | - Lajos Raduly
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania; (C.B.); (C.A.C.-C.); (C.B.); (O.Z.); (L.R.); (I.B.-N.)
| | - Monica Trif
- Centre for Innovative Process Engineering (CENTIV) GmbH, 28857 Syke, Germany;
| | - Mihai-Stefan Muresan
- 7th Surgical Department, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (M.-S.M.); (C.I.)
- Surgical Department, Municipal Hospital, 400139 Cluj-Napoca, Romania
| | - Calin Ionescu
- 7th Surgical Department, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (M.-S.M.); (C.I.)
- Surgical Department, Municipal Hospital, 400139 Cluj-Napoca, Romania
| | - Cristina Stefan
- Sing Duke-NUS Global Health Institute Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore;
| | - Carmen Crivii
- Department of Anatomy and Embryology, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania
- Correspondence: (C.C.); (S.M.)
| | - Nadim Al Hajjar
- Department of Surgery, Octavian Fodor Regional Institute of Gastroenterology and Hepatology, 19–21 Croitorilor Street, 400162 Cluj-Napoca, Romania;
- Department of Surgery, University of Medicine and Pharmacy, 19–21 Croitorilor Street, 400162 Cluj-Napoca, Romania
| | - Simona Mǎrgǎrit
- Department of Anesthesia and Intensive Care I, Iuliu Hatieganu University of Medicine and Pharmacy, 19–21 Croitorilor Street, 400162 Cluj-Napoca, Romania
- Department of Intensive Care Unit, Octavian Fodor Regional Institute of Gastroenterology and Hepatology, 19–21 Croitorilor Street, 400162 Cluj-Napoca, Romania
- Correspondence: (C.C.); (S.M.)
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania; (C.B.); (C.A.C.-C.); (C.B.); (O.Z.); (L.R.); (I.B.-N.)
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Identification prognosis-associated immune genes in colon adenocarcinoma. Biosci Rep 2021; 40:226879. [PMID: 33140821 PMCID: PMC7670579 DOI: 10.1042/bsr20201734] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 10/15/2020] [Accepted: 11/02/2020] [Indexed: 12/25/2022] Open
Abstract
Colon adenocarcinoma (COAD) is one of the most prevalent malignant tumors worldwide. Immune genes (IGs) have a considerable correlation with tumor initiation and prognosis. The present paper aims to identify the prognosis value of IGs in COAD and conduct a prognosis model for clinical utility. Gene expression data of COAD were downloaded from The Cancer Genome Atlas (TCGA), screening and analyzing differentially expressed IGs by bioinformatics. Core genes were screened by univariate and multivariate Cox regression analyses. Survival analysis was appraised by the Kaplan–Meier method and the log-rank test. Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, and Gene Set Enrichment Analysis (GSEA) were used to identify IGs’ relevant signal pathways. We predicted the overall survival (OS) by nomogram. Finally, a prognosis model was conducted based on 12 IGs (SLC10A2, CXCL3, NOX4, FABP4, ADIPOQ, IGKV1-33, IGLV6-57, INHBA, UCN, VIP, NGFR, and TRDC). The risk score was an independent prognostic factor, and a nomogram could accurately predict the OS of individual COAD patients. These results were validated in GSE39582, GSE12945, and GSE103479 cohorts. Functional enrichment analysis demonstrated that these IGs are mainly enriched in hormone secretion, hormone transport, lipid transport, cytokine–cytokine receptor interaction, and peroxisome proliferators-activated receptor signaling pathway. In summary, the risk score is an independent prognostic biomarker. We also excavated several IGs related to COAD’s survival and maybe potential biomarkers for COAD diagnosis and treatment.
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Zhou Z, Mo S, Gu R, Dai W, Zou X, Han L, Zhang L, Wang R, Cai G. Hematopoietic Gene Expression Regulation Through m 6A Methylation Predicts Prognosis in Stage III Colorectal Cancer. Front Oncol 2020; 10:572708. [PMID: 33102231 PMCID: PMC7556240 DOI: 10.3389/fonc.2020.572708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/08/2020] [Indexed: 11/13/2022] Open
Abstract
Background Methylation of N6 adenosine (m6A) plays important regulatory roles in diverse biological processes. The purpose of this research was to explore the potential mechanism of m6A modification level on the clinical outcome of stage III colorectal cancer (CRC). Methods Gene set variation analysis (GSVA) and gene set enrichment analysis (GSEA) were adopted to reveal the signal pathway which was most likely affected by m6A methylation. The linear models for microarray data (LIMMA) method and the least absolute shrink-age and selection operator (LASSO) Cox regression model were used to identify the signature. The signature can sensitively separate the patients into high and low risk indicating the relapse-free survival (RFS) time based on time-dependent receiver operating characteristic (ROC) analysis. Then, the multi-gene signature was validated in GSE14333 and the Cancer Genome Atlas (TCGA) cohort. The number of the samples in GSE14333 and TCGA cohort are 63 and 150. Finally, two nomograms were set up and validated to predict prognosis of patients with stage III CRC. Results The hematopoietic cell lineage (HCL) signaling pathway was disclosed through GSEA and GSVA. Seven HCL-related genes were determined in the LASSO model to construct signature, with AUC 0.663, 0.708, and 0.703 at 1-, 3-, and 5-year RFS, respectively. Independent datasets analysis and stratification analysis indicated that the HCL-related signature was reliable in distinguishing high- and low-risk stage III CRC patients. Two nomograms incorporating the signature and pathological N stage were set up, which yielded good discrimination and calibration in the predictions of prognosis for stage III CRC patients. Conclusions A novel HCL-related signature was developed as a predictive model for survival rate of stage III CRC patients. Nomograms based on the signature were advantageous to facilitate personalized counseling and treatment in stage III CRC.
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Affiliation(s)
- Zheng Zhou
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shaobo Mo
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ruiqi Gu
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Weixing Dai
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xinhui Zou
- School of Public Health, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lingyu Han
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Long Zhang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Cancer Institute, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Renjie Wang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Guoxiang Cai
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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8
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Feng C, Jin X, Han Y, Guo R, Zou J, Li Y, Wang Y. Expression and Prognostic Analyses of ITGA3, ITGA5, and ITGA6 in Head and Neck Squamous Cell Carcinoma. Med Sci Monit 2020; 26:e926800. [PMID: 33099569 PMCID: PMC7594586 DOI: 10.12659/msm.926800] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The landscape of head and neck cancers has changed with improvements in standard therapy; however, it is necessary to exploit advanced genomic approaches to identify novel diagnostic and prognostic biomarkers for head and neck squamous cell carcinoma (HNSC). ITGA3, ITGA5, and ITGA6, members of the integrin family of proteins, play active roles in cytoskeletal organization and cell migration, proliferation, and survival. However, the expression patterns and prognostic values of ITGA3, ITGA5, and ITGA6 in head and neck squamous cell carcinoma remain unclear. MATERIAL AND METHODS Different expression patterns and prognostic values of ITGA3, ITGA5, and ITGA6 were analyzed in patients with HNSC using various databases, including ONCOMINE, GEPIA, TIMER, HPA, Kaplan-Meier Plotter, GEO, and TCGA. RESULTS Expression levels of ITGA3, ITGA5, and ITGA6 were substantially increased in patients with HNSC. Additionally, higher expression levels of ITGA3, ITGA5, and ITGA6 were associated with worse overall survival in patients with HNSC, and higher levels of ITGA3 correlated with a worse relapse-free survival. CONCLUSIONS ITGA3, ITGA5, and ITGA6 are potential diagnostic and prognostic biomarkers for HNSC. In particular, IGTA5 might be used as a significant independent prognostic factor in this cancer.
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Affiliation(s)
- Chen Feng
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland).,NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan, Shandong, China (mainland)
| | - Xiaoxue Jin
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland).,NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan, Shandong, China (mainland)
| | - Yingying Han
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland).,NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan, Shandong, China (mainland)
| | - Ruixiang Guo
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland).,NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan, Shandong, China (mainland)
| | - Juanjuan Zou
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland).,NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan, Shandong, China (mainland)
| | - Yanzhong Li
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland).,NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan, Shandong, China (mainland)
| | - Yan Wang
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland).,NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan, Shandong, China (mainland)
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9
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N-glycomic profiling of colorectal cancer according to tumor stage and location. PLoS One 2020; 15:e0234989. [PMID: 32598367 PMCID: PMC7323945 DOI: 10.1371/journal.pone.0234989] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 06/06/2020] [Indexed: 12/24/2022] Open
Abstract
Alterations in glycosylation are seen in many types of cancer, including colorectal cancer (CRC). Glycans, the sugar moieties of glycoconjugates, are involved in many important functions relevant to cancer and can be of value as biomarkers. In this study, we have used mass spectrometry to analyze the N-glycan profiles of 35 CRC tissue samples and 10 healthy tissue samples from non-CRC patients who underwent operations for other reasons. The tumor samples were divided into groups depending on tumor location (right or left colon) and stage (II or III), while the healthy samples were divided into right or left colon. The levels of neutral and acidic N-glycan compositions and glycan classes were analyzed in a total of ten different groups. Surprisingly, there were no significant differences in glycan levels when all right- and left-sided CRC samples were compared, and few differences (such as in the abundance of the neutral N-glycan H3N5) were seen when the samples were divided according to both location and stage. Multiple significant differences were found in the levels of glycans and glycan classes when stage II and III samples were compared, and these glycans could be of value as candidates for new markers of cancer progression. In order to validate our findings, we analyzed healthy tissue samples from the right and left colon and found no significant differences in the levels of any of the glycans analyzed, confirming that our findings when comparing CRC samples from the right and left colon are not due to normal variations in the levels of glycans between the healthy right and left colon. Additionally, the levels of the acidic glycans H4N3F1P1, H5N4F1P1, and S1H5N4F1 were found to change in a cancer-specific but colon location-nonspecific manner, indicating that CRC affects glycan levels in similar ways regardless of tumor location.
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10
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Holm M, Joenväärä S, Saraswat M, Tohmola T, Ristimäki A, Renkonen R, Haglund C. Plasma protein expression differs between colorectal cancer patients depending on primary tumor location. Cancer Med 2020; 9:5221-5234. [PMID: 32452655 PMCID: PMC7367633 DOI: 10.1002/cam4.3178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/07/2020] [Accepted: 05/09/2020] [Indexed: 12/25/2022] Open
Abstract
Colorectal cancer (CRC) includes tumors in the right colon, left colon, and rectum, although they differ significantly from each other in aspects such as prognosis and treatment. Few previous mass spectrometry-based studies have analyzed differences in protein expression depending on the tumor location. In this study, we have used mass spectrometry-based proteomics to analyze plasma samples from 83 CRC patients to study if differences in plasma protein expression can be seen depending on primary tumor location (right colon, left colon, or rectum). Differences were studied between the groups both regardless of and according to tumor stage (II or III). Large differences in plasma protein expression were seen, and we found that plasma samples from patients with rectal cancer separated from samples from patients with colon cancer when analyzed by principal component analysis and hierarchical clustering. Samples from patients with cancer in the right and left colon also tended to separate from each other. Pathway analysis discovered canonical pathways involved in lipid metabolism and inflammation to be enriched. This study will help to further define CRC as distinct entities depending on tumor location, as shown by the widespread differences in plasma protein profile and dysregulated pathways.
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Affiliation(s)
- Matilda Holm
- Department of Surgery, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Department of Pathology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Applied Tumor Genomics Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Sakari Joenväärä
- Transplantation Laboratory, Haartman Institute, University of Helsinki, Helsinki, Finland.,HUSLAB, Helsinki University Hospital, Helsinki, Finland
| | - Mayank Saraswat
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Tiialotta Tohmola
- Transplantation Laboratory, Haartman Institute, University of Helsinki, Helsinki, Finland.,HUSLAB, Helsinki University Hospital, Helsinki, Finland.,Department of Biosciences, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Ari Ristimäki
- Department of Pathology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Applied Tumor Genomics Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,HUSLAB, Helsinki University Hospital, Helsinki, Finland
| | - Risto Renkonen
- Transplantation Laboratory, Haartman Institute, University of Helsinki, Helsinki, Finland.,HUSLAB, Helsinki University Hospital, Helsinki, Finland
| | - Caj Haglund
- Department of Surgery, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,HUSLAB, Helsinki University Hospital, Helsinki, Finland
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11
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NOX4 overexpression is a poor prognostic factor in patients undergoing curative esophagectomy for esophageal squamous cell carcinoma. Surgery 2019; 167:620-627. [PMID: 31889545 DOI: 10.1016/j.surg.2019.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/09/2019] [Accepted: 11/14/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Nox4 has been associated with tumor progression in various types of malignancies. This study aimed to evaluate the importance of the expression of Nox4 in patients undergoing curative esophagectomy for esophageal squamous cell carcinoma. METHODS We reviewed retrospectively 121 patients with esophageal squamous cell carcinoma who had undergone a curative esophagectomy, including 67 patients with overexpression and 54 patients with low expression of Nox4 as evaluated by immunohistochemical analysis. In addition, 2 esophageal squamous cell carcinoma cell lines, TE11 and KYSE270, were treated with the Nox4 inhibitor GKT-137831 to explore the expression of Nox4, cell proliferative activity, and selected downstream pathways in these esophageal squamous cell carcinoma cell lines by Western blot analysis. RESULTS Univariate analysis showed that T1-2 status, absence of nodal metastasis, and low Nox4 expression were associated with greater disease-free survival (P = .001) and overall survival (P < .001), and Nox4 overexpression was an independent prognostic factor of worse disease-free survival and overall survival (P = .013 and P = .007, respectively). The esophageal squamous cell carcinoma cell lines treated with the Nox4 inhibitor GKT-137831 showed decreased cell proliferation in a dose-dependent manner (P < .01). Western blot analysis demonstrated that expression of AKT, phosphorylated AKT, mammalian target of rapamycin, and phosphorylated mammalian target of rapamycin were less in esophageal squamous cell carcinoma cells treated with the Nox4 inhibitor (P < .01). CONCLUSION This study suggests that Nox4 overexpression is a poor prognostic factor for patients with esophageal squamous cell carcinoma undergoing curative esophagectomy.
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12
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Xie B, Bai B, Xu Y, Liu Y, Lv Y, Gao X, Wu F, Fang Z, Lou Y, Pan H, Han W. Tumor-suppressive function and mechanism of HOXB13 in right-sided colon cancer. Signal Transduct Target Ther 2019; 4:51. [PMID: 31815008 PMCID: PMC6882800 DOI: 10.1038/s41392-019-0086-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/07/2019] [Accepted: 10/10/2019] [Indexed: 01/05/2023] Open
Abstract
Right-sided colon cancer (RCC) and left-sided colon cancer (LCC) differ in their clinical and molecular features. An investigation of differentially expressed genes (DEGs) between RCC and LCC could contribute to targeted therapy for colon cancer, especially RCC, which has a poor prognosis. Here, we identified HOXB13, which was significantly less expressed in RCC than in LCC and associated with prognosis in RCC, by using 5 datasets from the Gene Expression Omnibus (GEO). Tissue sample analysis showed that HOXB13 was differentially expressed between normal and only RCC tumor tissues. HOXB13 inhibited colon cancer cell proliferation and induced apoptosis both in vitro and in vivo. Furthermore, we found that HOXB13 might be regulated by DNMT3B and suppress C-myc expression to exert antitumor effects via β-catenin/TCF4 signals in RCC. In conclusion, the current study is the first to demonstrate that HOXB13 has a tumor-suppressive effect in RCC. High expression levels of HOXB13 are associated with prolonged overall survival in patients with RCC. The DNMT3B-HOXB13-C-myc signaling axis might be a molecular target for the treatment of RCC.
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Affiliation(s)
- Binbin Xie
- Department of Medical Oncology; Sir Run Run Shaw Hospital; School of Medicine, Zhejiang University, Hangzhou, 310016 PR China
| | - Bingjun Bai
- Department of Colorectal Surgery; Sir Run Run Shaw Hospital; School of Medicine, Zhejiang University, Hangzhou, 310016 PR China
| | - Yuzi Xu
- Department of Stomatology; Stomatology Hospital; School of Medicine, Zhejiang University, Hangzhou, 310000 PR China
| | - Yunlong Liu
- Department of Medical Oncology; Sir Run Run Shaw Hospital; School of Medicine, Zhejiang University, Hangzhou, 310016 PR China
| | - Yiming Lv
- Department of Colorectal Surgery; Sir Run Run Shaw Hospital; School of Medicine, Zhejiang University, Hangzhou, 310016 PR China
| | - Xing Gao
- Department of Medical Oncology; The Second Affiliated Hospital of Suzhou University; School of Medicine, Suzhou University, Suzhou, 215000 PR China
| | - Fei Wu
- School of Medicine, Anhui University of Science and Technology, Huainan, 232001 PR China
| | - Zhipeng Fang
- Department of Medical Oncology; Sir Run Run Shaw Hospital; School of Medicine, Zhejiang University, Hangzhou, 310016 PR China
| | - Ying Lou
- Department of Medical Oncology; Sir Run Run Shaw Hospital; School of Medicine, Zhejiang University, Hangzhou, 310016 PR China
| | - Hongming Pan
- Department of Medical Oncology; Sir Run Run Shaw Hospital; School of Medicine, Zhejiang University, Hangzhou, 310016 PR China
| | - Weidong Han
- Department of Medical Oncology; Sir Run Run Shaw Hospital; School of Medicine, Zhejiang University, Hangzhou, 310016 PR China
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13
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Jiao Y, Li Y, Liu S, Chen Q, Liu Y. ITGA3 serves as a diagnostic and prognostic biomarker for pancreatic cancer. Onco Targets Ther 2019; 12:4141-4152. [PMID: 31213833 PMCID: PMC6549486 DOI: 10.2147/ott.s201675] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/22/2019] [Indexed: 12/12/2022] Open
Abstract
Background and objective: ITGA3 is a cell surface adhesion protein that interacts with extracellular matrix proteins which function in cancer metastasis. We examined the relationship of pancreatic ITGA3 expression with the clinical and pathological characteristics of patients with pancreatic cancer. Methods: Data mining was used to analyze pancreatic cancer data from The Cancer Genome Atlas database. A Chi squared test was used to evaluate correlations of ITGA3 expression with clinical and pathological parameters. Receiver operating characteristic (ROC) analysis was used to evaluate the diagnostic performance of ITGA3 expression. Survival analysis and Cox regression analysis were used to examine the prognostic value of ITGA3 expression. Gene Set Enrichment Analysis (GSEA) was used to identify signaling pathways related to ITGA3 expression. Results: Pancreatic expression of ITGA3 was greater in patients with pancreatic cancer than those without cancer, and was also associated with histological type, histological grade, stage, T classification, vital status, and relapse. ROC analysis indicated that ITGA3 had significant diagnostic value, in that high expression correlated with poor overall survival and relapse-free survival, especially in patients with early-stage cancer. Cox analysis indicated that high ITGA3 expression was an independent prognostic factor for pancreatic cancer. GSEA analysis identified 9 signaling pathways that were enriched in the presence of high ITGA3 expression. Conclusion: Expression of ITGA3 can be used as a diagnostic and prognostic biomarker in pancreatic cancer.
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Affiliation(s)
- Yan Jiao
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Yanqing Li
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, People's Republic of China
| | - Songyang Liu
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Qingmin Chen
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Yahui Liu
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin, 130021, People's Republic of China
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14
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Nox4 Overexpression as a Poor Prognostic Factor in Patients with Oral Tongue Squamous Cell Carcinoma Receiving Surgical Resection. J Clin Med 2018; 7:jcm7120497. [PMID: 30513726 PMCID: PMC6306917 DOI: 10.3390/jcm7120497] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 11/26/2018] [Accepted: 11/27/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Nox4 has been reported to promote tumor progression of various types of cancer through many different pathways. The current study was designed to evaluate the prognostic significance of Nox4 in patients with oral tongue squamous cell carcinoma (OTSCC) receiving surgical resection. METHODS We retrospectively analyzed the 161 patients with OTSCC treated with surgical resection, including 81 patients with high expression of Nox4 and 80 patients with low expression of Nox4. Two OTSCC cell lines, SAS and SCC4, were used to investigate the proliferation activity. RESULTS The univariate and multivariable analyses showed that negative nodal metastasis and low expression of Nox4 were significantly associated with superior disease-free survival (DFS) and overall survival (OS). Western blotting analysis indicated that Nox4 was highly expressed in these two OTSCC cell lines and knockdown of Nox4 was successful by transfecting with Nox4 shRNA. In addition, these cell lines were also treated with a Nox4 inhibitor (GKT-137831) and the results showed GKT-137831 could inhibit the proliferation of OTSCC tumor cells in a dose-dependent manner. CONCLUSION Our study suggests that Nox4 plays an important role in disease progression of OTSCC and Nox4 overexpression is a poor prognostic factor for patients with OTSCC who received surgical resection.
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15
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Tang CT, Gao YJ, Ge ZZ. NOX4, a new genetic target for anti-cancer therapy in digestive system cancer. J Dig Dis 2018; 19:578-585. [PMID: 30058122 DOI: 10.1111/1751-2980.12651] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 07/19/2018] [Accepted: 07/24/2018] [Indexed: 12/11/2022]
Abstract
Oxidative stress has been implicated as an important factor in tumorigenesis and tumor progression. The nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit 4 (NOX4), a substrate of NADPH that can generate H2 O2 reactive oxygen species, has been reported to be highly expressed in gastrointestinal tumors. In this review we summarize the available evidence on the biological function of NOX4 in digestive system tumors by focusing on its correlation with classical cell signaling pathways, including VEGF, MAPK and PI3K/AKT, and with biochemical mediators, such as nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), activator protein (AP)-1 and transforming growth factor (TGF)-β. According to the clinical and database studies on tumors of the digestive system, such as colorectal, gastric and pancreatic cancer, there are significant associations between NOX4 expression and tumor prognosis as well as patient's survival. Animal studies using NOX4 inhibitors such as diphenylene iodonium and GKT137831, which selectively block NOX4, indicate their potential as therapeutic agents for targeting cancer cells.
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Affiliation(s)
- Chao Tao Tang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Yun Jie Gao
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Zhi Zheng Ge
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
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16
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Du S, Miao J, Zhu Z, Xu E, Shi L, Ai S, Wang F, Kang X, Chen H, Lu X, Guan W, Xia X. NADPH oxidase 4 regulates anoikis resistance of gastric cancer cells through the generation of reactive oxygen species and the induction of EGFR. Cell Death Dis 2018; 9:948. [PMID: 30237423 PMCID: PMC6148243 DOI: 10.1038/s41419-018-0953-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 07/22/2018] [Accepted: 08/03/2018] [Indexed: 01/17/2023]
Abstract
Anoikis is a type of programmed cell death induced by detachment from the extracellular matrix. In cancer cells, anoikis resistance is essential for cancer cell survival in blood circulation and distant metastasis. However, the mechanisms behind anoikis resistance of gastric cancer remain largely unknown. Herein, we demonstrate that NADPH oxidase 4 (NOX4) expression and reactive oxygen species (ROS) generation are upregulated in suspension gastric cell cultures compared with adherent cultures. Silencing of NOX4 decreases ROS generation and downregulates EGFR, sensitizing cells to anoikis. NOX4 overexpression upregulates ROS and EGFR levels and promotes anoikis resistance. NOX4 depletion inhibits gastric cancer survival in blood circulation and attenuates distant metastasis. NOX4 expression is correlated with EGFR expression in patients. In conclusion, induction of NOX4 expression by detachment promotes anoikis resistance of gastric cancer through ROS generation and downstream upregulation of EGFR, which is critical for the metastatic progression of gastric cancer.
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Affiliation(s)
- Shangce Du
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Ji Miao
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Zhouting Zhu
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - En Xu
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Linsen Shi
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Shichao Ai
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Feng Wang
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Xing Kang
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Hong Chen
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Xiaofeng Lu
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China
| | - Wenxian Guan
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China. .,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China.
| | - Xuefeng Xia
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China. .,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, 210008, Nanjing, Jiangsu, P. R. China.
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17
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Wang WH, Xie TY, Xie GL, Ren ZL, Li JM. An Integrated Approach for Identifying Molecular Subtypes in Human Colon Cancer Using Gene Expression Data. Genes (Basel) 2018; 9:E397. [PMID: 30072645 PMCID: PMC6115727 DOI: 10.3390/genes9080397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/18/2018] [Accepted: 07/27/2018] [Indexed: 02/08/2023] Open
Abstract
Identifying molecular subtypes of colorectal cancer (CRC) may allow for more rational, patient-specific treatment. Various studies have identified molecular subtypes for CRC using gene expression data, but they are inconsistent and further research is necessary. From a methodological point of view, a progressive approach is needed to identify molecular subtypes in human colon cancer using gene expression data. We propose an approach to identify the molecular subtypes of colon cancer that integrates denoising by the Bayesian robust principal component analysis (BRPCA) algorithm, hierarchical clustering by the directed bubble hierarchical tree (DBHT) algorithm, and feature gene selection by an improved differential evolution based feature selection method (DEFSW) algorithm. In this approach, the normal samples being completely and exclusively clustered into one class is considered to be the standard of reasonable clustering subtypes, and the feature selection pays attention to imbalances of samples among subtypes. With this approach, we identified the molecular subtypes of colon cancer on the mRNA gene expression dataset of 153 colon cancer samples and 19 normal control samples of the Cancer Genome Atlas (TCGA) project. The colon cancer was clustered into 7 subtypes with 44 feature genes. Our approach could identify finer subtypes of colon cancer with fewer feature genes than the other two recent studies and exhibits a generic methodology that might be applied to identify the subtypes of other cancers.
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Affiliation(s)
- Wen-Hui Wang
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Southern Medical University, Guangzhou 510515, China.
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
- Network Information Center, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China.
| | - Ting-Yan Xie
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Southern Medical University, Guangzhou 510515, China.
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Guang-Lei Xie
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Southern Medical University, Guangzhou 510515, China.
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Zhong-Lu Ren
- Center for Systems Medical Genetics, Department of Obstetrics & Gynecology Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
- Laboratory of Systems Neuroscience, Institute of Mental Health Southern Medical University, Southern Medical University, Guangzhou 510515, China.
| | - Jin-Ming Li
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Southern Medical University, Guangzhou 510515, China.
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
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18
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Lim LC, Lim YM. Proteome Heterogeneity in Colorectal Cancer. Proteomics 2018; 18. [PMID: 29316255 DOI: 10.1002/pmic.201700169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 12/17/2017] [Indexed: 01/26/2023]
Abstract
Tumor heterogeneity is an important feature of colorectal cancer (CRC) manifested by dynamic changes in gene expression, protein expression, and availability of different tumor subtypes. Recent publications in the past 10 years have revealed proteome heterogeneity between different colorectal tumors and within the same tumor site. This paper reviews recent research works on the proteome heterogeneity in CRC, which includes the heterogeneity within a single tumor (intratumor heterogeneity), between different anatomical sites at the same organ, and between primary and metastatic sites (intertumor heterogeneity). The potential use of proteome heterogeneity in precision medicine and its implications in biomarker discovery and therapeutic outcomes will be discussed. Identification of the unique proteome landscape between and within individual tumors is imperative for understanding cancer biology and the management of CRC patients.
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Affiliation(s)
- Lay Cheng Lim
- Centre for Cancer Research, Faculty of Medicine and Health Sciences, University of Tunku Abdul Rahman, Selangor, Malaysia
| | - Yang Mooi Lim
- Centre for Cancer Research, Faculty of Medicine and Health Sciences, University of Tunku Abdul Rahman, Selangor, Malaysia
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19
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Gao X, Sun J, Huang C, Hu X, Jiang N, Lu C. RNAi-mediated silencing of NOX4 inhibited the invasion of gastric cancer cells through JAK2/STAT3 signaling. Am J Transl Res 2017; 9:4440-4449. [PMID: 29118906 PMCID: PMC5666053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 06/19/2017] [Indexed: 06/07/2023]
Abstract
NADPH oxidase 4 (NOX4) is a member of the NADPH oxidase (NOX) family of enzymes and has been found abnormally expressed in human cancers. However, its role in gastric cancer (GC) is still unclear. In the current study, we reported that NOX4 expression levels were significantly up-regulated in GC tissues compared to normal tissues (P<0.0001). Higher NOX4 expression was significantly associated with poorer overall survival in GC patients. Silencing NOX4 in two NOX4 high expression GC cell lines, MGC-803 and BGC-823 cells, did not affect cell proliferation, while inhibited cell adhesion and cell invasion of GC cells. Furthermore, Gene set enrichment analysis (GSEA) results indicated that NOX4 expression was strongly associated with cell migration, epithelial-mesenchymal transition (EMT) and Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling pathways. More interestingly, Interleukin-6 (IL-6) increased the invasion ability and activation of JAK2/STAT3 of MGC-803 and BGC-823 cells. Such effects were attenuated by NOX4 silencing. Overexpression of NOX4 in one NOX4 low expression GC cell line, SGC-7901 cells, significantly promoted cell invasion, which was impaired by treatment of JAK2 inhibitor, AG490. AG490 inhibited STAT3 activation in SW1990 cells. NOX4 may exert its function through JAK2/STAT3 pathway. In summary, the findings of this study indicate that NOX4 may promote the development of GC, potentially representing a novel prognostic marker for overall survival in GC.
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Affiliation(s)
- Xiang Gao
- Department of Biostatistics and Computational Biology, SKLG, School of Life Sciences, Fudan UniversityShanghai, China
- Genergy Bio-technology (Shanghai) Co., LTDRoom 4B, Building#3, No. 401 Caobao Rd, Xuhui District, Shanghai, China
| | - Jingping Sun
- The First People’s Hospital of Wujiang DistrictSuzhou, Jiangsu, China
| | - Chunyu Huang
- Genergy Bio-technology (Shanghai) Co., LTDRoom 4B, Building#3, No. 401 Caobao Rd, Xuhui District, Shanghai, China
| | - Xiaohua Hu
- Department of Biostatistics and Computational Biology, SKLG, School of Life Sciences, Fudan UniversityShanghai, China
| | - Ning Jiang
- Department of Biostatistics and Computational Biology, SKLG, School of Life Sciences, Fudan UniversityShanghai, China
| | - Chenqi Lu
- Department of Biostatistics and Computational Biology, SKLG, School of Life Sciences, Fudan UniversityShanghai, China
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Profiling of long non-coding RNAs identifies LINC00958 and LINC01296 as candidate oncogenes in bladder cancer. Sci Rep 2017; 7:395. [PMID: 28341852 PMCID: PMC5428251 DOI: 10.1038/s41598-017-00327-0] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/21/2017] [Indexed: 12/26/2022] Open
Abstract
Aberrant expression of long non-coding RNAs (lncRNAs) has been regarded as a critical component in bladder cancer (BC) and lncRNAs have been associated with BC development and progression although their overall expression and functional significance is still unclear. The aim of our study was to identify novel lncRNAs with a functional role in BC carcinogenesis. RNA-sequencing was used to identify aberrantly expressed lncRNAs in 8 normal and 72 BC samples. We identified 89 lncRNAs that were significantly dys-regulated in BC. Five lncRNAs; LINC00958, LINC01296, LINC00355, LNC-CMC1-1 and LNC-ALX1-2 were selected for further analyses. Silencing of LINC00958 or LINC01296 in vitro reduced both cell viability and migration. Knock-down of LINC00958 also affected invasion and resistance to anoikis. These cellular effects could be linked to direct/indirect regulation of protein coding mRNAs involved in cell death/survival, proliferation and cellular movement. Finally, we showed that LINC00958 binds proteins involved in regulation and initiation of translation and in post-transcriptional modification of RNA, including Metadherin, which has previously been associated with BC. Our analyses identified novel lncRNAs in BC that likely act as oncogenic drivers contributing to an aggressive cancerous phenotype likely through interaction with proteins involved in initiation of translation and/or post-transcriptional modification of RNA.
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Regulation of anoikis resistance by NADPH oxidase 4 and epidermal growth factor receptor. Br J Cancer 2017; 116:370-381. [PMID: 28081539 PMCID: PMC5294491 DOI: 10.1038/bjc.2016.440] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 12/03/2016] [Accepted: 12/05/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Normal cells are sensitive to anoikis, which is a cell detachment-induced apoptosis. However, cancer cells acquire anoikis resistance that is essential for successful metastasis. This study aimed to demonstrate the function and potential mechanism of NADPH oxidase 4 (NOX4) and EGFR activation in regulating anoikis resistance in lung cancer. METHODS Cells were cultured either in the attached or suspended condition. Cell viability was measured by cell counting and live and dead cell staining. Expression levels of NOX4 and EGFR were measured by PCR and immunoblotting. Reactive oxygen species (ROS) levels were measured by flow cytometry. Effects of NOX4 overexpression or NOX4 knockdown by si-NOX4 on anoikis sensitivity were explored. Levels of NOX4 and EGFR in lung cancer tissues were evaluated by IHC staining. RESULTS NOX4 was upregulated but EGFR decreased in suspended cells compared with attached cells. Accordingly, ROS levels were increased in suspended cells, resulting in the activation of Src and EGFR. NOX4 knockdown decreased activation of Src and EGFR, and thus sensitised cells to anoikis. NOX4 overexpression increased EGFR levels and attenuated anoikis. NOX4 expression is upregulated and is positively correlated with EGFR levels in the lung cancer patient tissues. CONCLUSIONS NOX4 upregulation confers anoikis resistance by ROS-mediated activation of EGFR and Src, and by maintaining EGFR levels, which is critical for cell survival.
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22
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Proteomic analysis reveals aberrant expression of CALR and HSPA5 in thyroid tissues of Graves' disease. Clin Biochem 2017; 50:40-45. [DOI: 10.1016/j.clinbiochem.2016.08.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 08/18/2016] [Accepted: 08/19/2016] [Indexed: 02/06/2023]
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Yang Q, Kong XX, Ding KF. Differences in prognosis and molecular biological features between left- and right-sided colon cancer. Shijie Huaren Xiaohua Zazhi 2016; 24:3556-3563. [DOI: 10.11569/wcjd.v24.i24.3556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Apart from differences in epidemiologic, pathologic and symptomatic features, the natural prognosis, therapeutic prognosis, as well as survival after relapse also show great differences between left- and right-sided colon cancer. Those differences in prognosis are noticed to be dependent on tumor stage and also thought to be due to the variant genetic background and molecular biological features. In this review, we summarize the differences in prognosis and molecular biological features between left- and right-sided colon cancer, and discuss the possible connections between clinical and molecular differences. Taking into account the impact that location and differentially expressed molecules may have on prognosis, clinicians could have a more accurate estimate on the prognosis of colon cancer patients.
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24
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Tong M, Zheng W, Li H, Li X, Ao L, Shen Y, Liang Q, Li J, Hong G, Yan H, Cai H, Li M, Guan Q, Guo Z. Multi-omics landscapes of colorectal cancer subtypes discriminated by an individualized prognostic signature for 5-fluorouracil-based chemotherapy. Oncogenesis 2016; 5:e242. [PMID: 27429074 PMCID: PMC5399173 DOI: 10.1038/oncsis.2016.51] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/27/2016] [Accepted: 06/17/2016] [Indexed: 12/11/2022] Open
Abstract
Until recently, few prognostic signatures for colorectal cancer (CRC) patients receiving 5-fluorouracil (5-FU)-based chemotherapy could be used in clinical practice. Here, using transcriptional profiles for a panel of cancer cell lines and three cohorts of CRC patients, we developed a prognostic signature based on within-sample relative expression orderings (REOs) of six gene pairs for stage II-III CRC patients receiving 5-FU-based chemotherapy. This REO-based signature had the unique advantage of being insensitive to experimental batch effects and free of the impractical data normalization requirement. After stratifying 184 CRC samples with multi-omics data from The Cancer Genome Atlas into two prognostic groups using the REO-based signature, we further revealed that patients with high recurrence risk were characterized by frequent gene copy number aberrations reducing 5-FU efficacy and DNA methylation aberrations inducing distinct transcriptional alternations to confer 5-FU resistance. In contrast, patients with low recurrence risk exhibited deficient mismatch repair and carried frequent gene mutations suppressing cell adhesion. These results reveal the multi-omics landscapes determining prognoses of stage II-III CRC patients receiving 5-FU-based chemotherapy.
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Affiliation(s)
- M Tong
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - W Zheng
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - H Li
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - X Li
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - L Ao
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Y Shen
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Q Liang
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - J Li
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - G Hong
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - H Yan
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - H Cai
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - M Li
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Q Guan
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Z Guo
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
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Guo XF, Arceo J, Huge BJ, Ludwig KR, Dovichi NJ. Chemical cytometry of thiols using capillary zone electrophoresis-laser induced fluorescence and TMPAB-o-M, an improved fluorogenic reagent. Analyst 2016; 141:1325-30. [PMID: 26814594 PMCID: PMC4747679 DOI: 10.1039/c5an02116b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Low molecular weight thiol compounds play crucial roles in many physiological processes. Most methods for determination of thiol compounds are population-averaged; few methods for quantification of thiol compounds in single cells have been reported. We report an ultrasensitive method for determination of thiol compounds in single cells by use of 1,3,5,7-tetramethyl-8-phenyl-(2-maleimide)-difluoroboradiaza-s-indacene (TMPAB-o-M), a fluorogenic probe with useful spectral properties, coupled with capillary zone electrophoresis and laser induced fluorescence detection using a post-column sheath flow cuvette. TMPAB-o-M provides low background, high sensitivity, and excellent reactivity. After optimization of the separation method, we achieved baseline separation of labeled glutathione (GSH), cysteine (Cys), homocysteine, and γ-glutamylcysteine within 11 min, and produced concentration limits of detection from 10 to 20 pM and mass LODs of 65 to 100 zmol. The method was applied for analysis of thiol containing compounds in both cell homogenates and in single HCT-29 and MCF-10A cells. GSH was the main thiol, and Cys was also detected in both cell types. Cells were treated with N-ethylmaleimide, which significantly attenuated thiol levels.
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Affiliation(s)
- Xiao-Feng Guo
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA. and Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Jennifer Arceo
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Bonnie Jaskowski Huge
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Katelyn R Ludwig
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Norman J Dovichi
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
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Sjöström M, Ossola R, Breslin T, Rinner O, Malmström L, Schmidt A, Aebersold R, Malmström J, Niméus E. A Combined Shotgun and Targeted Mass Spectrometry Strategy for Breast Cancer Biomarker Discovery. J Proteome Res 2015; 14:2807-18. [DOI: 10.1021/acs.jproteome.5b00315] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | - Ruedi Aebersold
- Department
of Biology, Institute of Molecular Systems Biology, Eidgenössische Technische Hochschule, 8092 Zurich, Switzerland
| | | | - Emma Niméus
- Division
of Surgery, Skåne University Hospital, 221 85 Lund, Sweden
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Thongboonkerd V, LaBaer J, Domont GB. Recent Advances of Proteomics Applied to Human Diseases. J Proteome Res 2014; 13:4493-6. [DOI: 10.1021/pr501038g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Visith Thongboonkerd
- Medical Proteomics Unit,
Office for Research and Development, Faculty of Medicine Siriraj Hospital,
and Center for Research in Complex Systems Science, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok 10700, Thailand
| | - Joshua LaBaer
- Virginia G. Piper Center
for Personalized Diagnostics, Biodesign Institute, Arizona State University, 1001 South McAllister Avenue, Tempe, Arizona 85287-6401, United States
| | - Gilberto B. Domont
- Proteomics Unit, Institute
of Chemistry, Federal University of Rio de Janeiro (UFRJ), Avenida
Athos da Silveira Ramos, Rio de Janeiro, 21941-909 RJ, Brazil
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