1
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Acharjee A, Okyere D, Nath D, Nagar S, Gkoutos GV. Network dynamics and therapeutic aspects of mRNA and protein markers with the recurrence sites of pancreatic cancer. Heliyon 2024; 10:e31437. [PMID: 38803850 PMCID: PMC11128524 DOI: 10.1016/j.heliyon.2024.e31437] [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: 11/03/2023] [Revised: 05/11/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a deadly disease that typically manifests late patient presentation and poor outcomes. Furthermore, PDAC recurrence is a common challenge. Distinct patterns of PDAC recurrence have been associated with differential activation of immune pathway-related genes and specific inflammatory responses in their tumour microenvironment. However, the molecular associations between and within cellular components that underpin PDAC recurrence require further development, especially from a multi-omics integration perspective. In this study, we identified stable molecular associations across multiple PDAC recurrences and utilised integrative analytics to identify stable and novel associations via simultaneous feature selection. Spatial transcriptome and proteome datasets were used to perform univariate analysis, Spearman partial correlation analysis, and univariate analyses by Machine Learning methods, including regularised canonical correlation analysis and sparse partial least squares. Furthermore, networks were constructed for reported and new stable associations. Our findings revealed gene and protein associations across multiple PDAC recurrence groups, which can provide a better understanding of the multi-layer disease mechanisms that contribute to PDAC recurrence. These findings may help to provide novel association targets for clinical studies for constructing precision medicine and personalised surveillance tools for patients with PDAC recurrence.
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Affiliation(s)
- Animesh Acharjee
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC Health Data Research UK (HDR UK), Birmingham, United Kingdom
- Institute of Translational Medicine, University Hospitals Birmingham NHS, Foundation Trust, B15 2TT, United Kingdom
- Centre for Health Data Research, University of Birmingham, B15 2TT, United Kingdom
| | - Daniella Okyere
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Dipanwita Nath
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Shruti Nagar
- Eureka Tutorials, Muzaffarnagar, U.P., 251201, India
| | - Georgios V. Gkoutos
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC Health Data Research UK (HDR UK), Birmingham, United Kingdom
- Institute of Translational Medicine, University Hospitals Birmingham NHS, Foundation Trust, B15 2TT, United Kingdom
- Centre for Health Data Research, University of Birmingham, B15 2TT, United Kingdom
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2
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Li Z, Song C, Yang J, Jia Z, Chen D, Yan C, Tian L, Wu X. Clustering algorithm based on DINNSM and its application in gene expression data analysis. Technol Health Care 2024; 32:229-239. [PMID: 38759052 DOI: 10.3233/thc-248020] [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: 05/19/2024]
Abstract
BACKGROUND Selecting an appropriate similarity measurement method is crucial for obtaining biologically meaningful clustering modules. Commonly used measurement methods are insufficient in capturing the complexity of biological systems and fail to accurately represent their intricate interactions. OBJECTIVE This study aimed to obtain biologically meaningful gene modules by using the clustering algorithm based on a similarity measurement method. METHODS A new algorithm called the Dual-Index Nearest Neighbor Similarity Measure (DINNSM) was proposed. This algorithm calculated the similarity matrix between genes using Pearson's or Spearman's correlation. It was then used to construct a nearest-neighbor table based on the similarity matrix. The final similarity matrix was reconstructed using the positions of shared genes in the nearest neighbor table and the number of shared genes. RESULTS Experiments were conducted on five different gene expression datasets and compared with five widely used similarity measurement techniques for gene expression data. The findings demonstrate that when utilizing DINNSM as the similarity measure, the clustering results performed better than using alternative measurement techniques. CONCLUSIONS DINNSM provided more accurate insights into the intricate biological connections among genes, facilitating the identification of more accurate and biological gene co-expression modules.
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Affiliation(s)
- Zongjin Li
- Department of Computer, Qinghai Normal University, Xining, China
| | - Changxin Song
- Department of Mechanical Engineering and Information, Shanghai Urban Construction Vocational College, Shanghai, China
| | - Jiyu Yang
- Department of Cardiovascular Medicine, Xining First People's Hospital, Xining, China
| | - Zeyu Jia
- Department of Computer, Qinghai Normal University, Xining, China
| | - Dongzhen Chen
- School of Materials Science and Engineering, Xi'an Polytechnic University, Xi'an, China
| | - Chengying Yan
- Department of Cardiovascular Medicine, Xining First People's Hospital, Xining, China
| | - Liqin Tian
- Department of Computer, Qinghai Normal University, Xining, China
- School of Computer, North China Institute of Science and Technology, Langfang, China
| | - Xiaoming Wu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
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3
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Perry RN, Albarracin D, Aherrahrou R, Civelek M. Network Preservation Analysis Reveals Dysregulated Metabolic Pathways in Human Vascular Smooth Muscle Cell Phenotypic Switching. CIRCULATION. GENOMIC AND PRECISION MEDICINE 2023; 16:372-381. [PMID: 37387208 PMCID: PMC10434832 DOI: 10.1161/circgen.122.003781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/06/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND Vascular smooth muscle cells are key players involved in atherosclerosis, the underlying cause of coronary artery disease. They can play either beneficial or detrimental roles in lesion pathogenesis, depending on the nature of their phenotypic changes. An in-depth characterization of their gene regulatory networks can help better understand how their dysfunction may impact disease progression. METHODS We conducted a gene expression network preservation analysis in aortic smooth muscle cells isolated from 151 multiethnic heart transplant donors cultured under quiescent or proliferative conditions. RESULTS We identified 86 groups of coexpressed genes (modules) across the 2 conditions and focused on the 18 modules that are least preserved between the phenotypic conditions. Three of these modules were significantly enriched for genes belonging to proliferation, migration, cell adhesion, and cell differentiation pathways, characteristic of phenotypically modulated proliferative vascular smooth muscle cells. The majority of the modules, however, were enriched for metabolic pathways consisting of both nitrogen-related and glycolysis-related processes. Therefore, we explored correlations between nitrogen metabolism-related genes and coronary artery disease-associated genes and found significant correlations, suggesting the involvement of the nitrogen metabolism pathway in coronary artery disease pathogenesis. We also created gene regulatory networks enriched for genes in glycolysis and predicted key regulatory genes driving glycolysis dysregulation. CONCLUSIONS Our work suggests that dysregulation of vascular smooth muscle cell metabolism participates in phenotypic transitioning, which may contribute to disease progression, and suggests that AMT (aminomethyltransferase) and MPI (mannose phosphate isomerase) may play an important role in regulating nitrogen and glycolysis-related metabolism in smooth muscle cells.
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Affiliation(s)
- R. Noah Perry
- Center for Public Health Genomics (R.N.P., R.A., M.C.), University of Virginia, Charlottesville
- Department of Biomedical Engineering (R.N.P., D.A., M.C.), University of Virginia, Charlottesville
| | - Diana Albarracin
- Department of Biomedical Engineering (R.N.P., D.A., M.C.), University of Virginia, Charlottesville
| | - Redouane Aherrahrou
- Center for Public Health Genomics (R.N.P., R.A., M.C.), University of Virginia, Charlottesville
| | - Mete Civelek
- Center for Public Health Genomics (R.N.P., R.A., M.C.), University of Virginia, Charlottesville
- Department of Biomedical Engineering (R.N.P., D.A., M.C.), University of Virginia, Charlottesville
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4
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Yang N, Hu W, He J, Wu X, Zou T, Zheng J, Zhao C, Wang M. Ultra-high performance liquid chromatography-quadrupole/time-of-flight mass spectrometry-based lipidomics reveals key lipid molecules as potential therapeutic targets of Polygonum cuspidatum against hyperlipidemia in a hamster model. J Sep Sci 2023; 46:e2200844. [PMID: 36815210 DOI: 10.1002/jssc.202200844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/28/2023] [Accepted: 02/19/2023] [Indexed: 02/24/2023]
Abstract
Polygonum cuspidatum is a homology of traditional medicine and functional food widely distributed around the world. Our previous study on the hyperlipidemic animal model demonstrated that Polygonum cuspidatum was effective in ameliorating hyperlipidemia, which is characterized by lipid disorders. Herein, the regulatory effect of Polygonum cuspidatum on lipid metabolism needs to be known if its hypolipidemic mechanism is desired to clarify. In this study, an ultra-high performance liquid chromatography-quadrupole/time-of-flight mass spectrometry-based lipidomic strategy was first applied to investigate the lipidomic patterns of high-fat diet-induced hyperlipidemic hamsters when treated with Polygonum cuspidatum. The results showed that Polygonum cuspidatum improved the lipidomic profile of hyperlipidemia. A total of 65 differential lipids related to the hypolipidemic effect of Polygonum cuspidatum were screened out and identified, and these differential lipids covered various categories, such as phosphatidylcholines, phosphatidylethanolamines, triacylglycerols, sphingomyelins and so on. Orally administrated Polygonum cuspidatum restored these differential lipids back to normal or nearly normal levels. This study adopted lipidomics to reveal the key lipid molecules as potential therapeutic targets of Polygonum cuspidatum against hyperlipidemia, which would provide a scientific basis for its clinical application.
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Affiliation(s)
- Na Yang
- Department of Pharmacy, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, P. R. China.,Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, P. R. China
| | - Wei Hu
- Department of Pharmacy, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, P. R. China.,Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, P. R. China
| | - Jun He
- Department of Pharmacy, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Xu Wu
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, P. R. China
| | - Ting Zou
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, P. R. China
| | - Jiahui Zheng
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, P. R. China
| | - Chongbo Zhao
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, P. R. China
| | - Min Wang
- Department of Pharmacy, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, P. R. China.,Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, P. R. China
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5
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Fleming GM, ElQadi MM, Taruc RR, Tela A, Duffy GA, Ramsay EE, Faber PA, Chown SL. Classification and ecological relevance of soundscapes in urban informal settlements. PEOPLE AND NATURE 2023. [DOI: 10.1002/pan3.10454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Affiliation(s)
- Genie M. Fleming
- School of Biological Sciences Monash University Melbourne Victoria Australia
| | | | - Ruzka R. Taruc
- Public Health Faculty Hasanuddin University Makassar Indonesia
| | - Autiko Tela
- School of Public Health and Primary Care Fiji National University, College of Medicine, Nursing and Health Sciences Suva Fiji
| | - Grant A. Duffy
- School of Biological Sciences Monash University Melbourne Victoria Australia
| | - Emma E. Ramsay
- School of Biological Sciences Monash University Melbourne Victoria Australia
| | - Peter A. Faber
- School of Biological Sciences Monash University Melbourne Victoria Australia
| | - Steven L. Chown
- School of Biological Sciences Monash University Melbourne Victoria Australia
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Hao X, Chen J, Li Y, Liu X, Li Y, Wang B, Cao J, Gu Y, Ma W, Ma L. Molecular Defense Response of Bursaphelenchus xylophilus to the Nematophagous Fungus Arthrobotrys robusta. Cells 2023; 12:cells12040543. [PMID: 36831210 PMCID: PMC9953903 DOI: 10.3390/cells12040543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/14/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
Bursaphelenchus xylophilus causes pine wilt disease, which poses a serious threat to forestry ecology around the world. Microorganisms are environmentally friendly alternatives to the use of chemical nematicides to control B. xylophilus in a sustainable way. In this study, we isolated a nematophagous fungus-Arthrobotrys robusta-from the xylem of diseased Pinus massoniana. The nematophagous activity of A. robusta against the PWNs was observed after just 6 h. We found that B. xylophilus entered the trap of A. robusta at 24 h, and the nervous system and immunological response of B. xylophilus were stimulated by metabolites that A. robusta produced. At 30 h of exposure to A. robusta, B. xylophilus exhibited significant constriction, and we were able to identify xenobiotics. Bursaphelenchus xylophilus activated xenobiotic metabolism, which expelled the xenobiotics from their bodies, by providing energy through lipid metabolism. When PWNs were exposed to A. robusta for 36 h, lysosomal and autophagy-related genes were activated, and the bodies of the nematodes underwent disintegration. Moreover, a gene co-expression pattern network was constructed by WGCNA and Cytoscape. The gene co-expression pattern network suggested that metabolic processes, developmental processes, detoxification, biological regulation, and signaling were influential when the B. xylophilus specimens were exposed to A. robusta. Additionally, bZIP transcription factors, ankyrin, ATPases, innexin, major facilitator, and cytochrome P450 played critical roles in the network. This study proposes a model in which mobility improved whenever B. xylophilus entered the traps of A. robusta. The model will provide a solid foundation with which to understand the molecular and evolutionary mechanisms underlying interactions between nematodes and nematophagous fungi. Taken together, these findings contribute in several ways to our understanding of B. xylophilus exposed to microorganisms and provide a basis for establishing an environmentally friendly prevention and control strategy.
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Affiliation(s)
- Xin Hao
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Jie Chen
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Yongxia Li
- Key Laboratory of Forest Protection, National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, China
| | - Xuefeng Liu
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Yang Li
- School of Forestry, Northeast Forestry University, Harbin 150040, China
- China Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Bowen Wang
- School of Art and Archaeology, Zhejiang University, Hangzhou 310028, China
| | - Jingxin Cao
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Yaru Gu
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Wei Ma
- College of Pharmaceutical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Ling Ma
- School of Forestry, Northeast Forestry University, Harbin 150040, China
- Correspondence:
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7
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Fanalli SL, da Silva BPM, Gomes JD, Durval MC, de Almeida VV, Moreira GCM, Silva-Vignato B, Afonso J, Freitas FAO, Reecy JM, Koltes JE, Koltes D, Garrick D, Correia de Almeida Regitano L, Balieiro JCDC, Mourão GB, Coutinho LL, Fukumasu H, de Alencar SM, Luchiari Filho A, Cesar ASM. RNA-seq transcriptome profiling of pigs' liver in response to diet with different sources of fatty acids. Front Genet 2023; 14:1053021. [PMID: 36816031 PMCID: PMC9936315 DOI: 10.3389/fgene.2023.1053021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Pigs (Sus scrofa) are an animal model for metabolic diseases in humans. Pork is an important source of fatty acids (FAs) in the human diet, as it is one of the most consumed meats worldwide. The effects of dietary inclusion of oils such as canola, fish, and soybean oils on pig gene expression are mostly unknown. Our objective was to evaluate FA composition, identify changes in gene expression in the liver of male pigs fed diets enriched with different FA profiles, and identify impacted metabolic pathways and gene networks to enlighten the biological mechanisms' variation. Large White male pigs were randomly allocated to one of three diets with 18 pigs in each; all diets comprised a base of corn and soybean meal to which either 3% of soybean oil (SOY), 3% canola oil (CO), or 3% fish oil (FO) was added for a 98-day trial during the growing and finishing phases. RNA sequencing was performed on the liver samples of each animal by Illumina technology for differential gene expression analyses, using the R package DESeq2. The diets modified the FA profile, mainly in relation to polyunsaturated and saturated FAs. Comparing SOY vs. FO, 143 differentially expressed genes (DEGs) were identified as being associated with metabolism, metabolic and neurodegenerative disease pathways, inflammatory processes, and immune response networks. Comparing CO vs. SOY, 148 DEGs were identified, with pathways related to FA oxidation, regulation of lipid metabolism, and metabolic and neurodegenerative diseases. Our results help explain the behavior of genes with differential expression in metabolic pathways resulting from feeding different types of oils in pig diets.
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Affiliation(s)
- Simara Larissa Fanalli
- Faculty of Animal Science and Food Engineering, (FZEA), University of São Paulo, São Paulo, Brazil
| | | | - Julia Dezen Gomes
- Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil
| | - Mariah Castro Durval
- Faculty of Animal Science and Food Engineering, (FZEA), University of São Paulo, São Paulo, Brazil
| | | | | | - Bárbara Silva-Vignato
- Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil
| | | | - Felipe André Oliveira Freitas
- Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil
| | - James Mark Reecy
- Animal Science Department, Iowa State University, Ames, IA, United States
| | | | - Dawn Koltes
- Animal Science Department, Iowa State University, Ames, IA, United States
| | - Dorian Garrick
- AL Rae Centre for Genetics and Breeding, Massey University, Hamilton, New Zealand
| | | | | | - Gerson Barreto Mourão
- Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil
| | - Luiz Lehmann Coutinho
- Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil
| | - Heidge Fukumasu
- Faculty of Animal Science and Food Engineering, (FZEA), University of São Paulo, São Paulo, Brazil
| | - Severino Matias de Alencar
- Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil
| | - Albino Luchiari Filho
- Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil
| | - Aline Silva Mello Cesar
- Faculty of Animal Science and Food Engineering, (FZEA), University of São Paulo, São Paulo, Brazil,Animal Science Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, Brazil,*Correspondence: Aline Silva Mello Cesar,
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8
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Xiao G, Guan R, Cao Y, Huang Z, Xu Y. KISL: knowledge-injected semi-supervised learning for biological co-expression network modules. Front Genet 2023; 14:1151962. [PMID: 37205122 PMCID: PMC10185879 DOI: 10.3389/fgene.2023.1151962] [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: 01/27/2023] [Accepted: 04/11/2023] [Indexed: 05/21/2023] Open
Abstract
The exploration of important biomarkers associated with cancer development is crucial for diagnosing cancer, designing therapeutic interventions, and predicting prognoses. The analysis of gene co-expression provides a systemic perspective on gene networks and can be a valuable tool for mining biomarkers. The main objective of co-expression network analysis is to discover highly synergistic sets of genes, and the most widely used method is weighted gene co-expression network analysis (WGCNA). With the Pearson correlation coefficient, WGCNA measures gene correlation, and uses hierarchical clustering to identify gene modules. The Pearson correlation coefficient reflects only the linear dependence between variables, and the main drawback of hierarchical clustering is that once two objects are clustered together, the process cannot be reversed. Hence, readjusting inappropriate cluster divisions is not possible. Existing co-expression network analysis methods rely on unsupervised methods that do not utilize prior biological knowledge for module delineation. Here we present a method for identification of outstanding modules in a co-expression network using a knowledge-injected semi-supervised learning approach (KISL), which utilizes apriori biological knowledge and a semi-supervised clustering method to address the issue existing in the current GCN-based clustering methods. To measure the linear and non-linear dependence between genes, we introduce a distance correlation due to the complexity of the gene-gene relationship. Eight RNA-seq datasets of cancer samples are used to validate its effectiveness. In all eight datasets, the KISL algorithm outperformed WGCNA when comparing the silhouette coefficient, Calinski-Harabasz index and Davies-Bouldin index evaluation metrics. According to the results, KISL clusters had better cluster evaluation values and better gene module aggregation. Enrichment analysis of the recognition modules demonstrated their effectiveness in discovering modular structures in biological co-expression networks. In addition, as a general method, KISL can be applied to various co-expression network analyses based on similarity metrics. Source codes for the KISL and the related scripts are available online at https://github.com/Mowonhoo/KISL.git.
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Affiliation(s)
- Gangyi Xiao
- College of Computer Science and Technology, Jilin University, Changchun, China
| | - Renchu Guan
- College of Computer Science and Technology, Jilin University, Changchun, China
| | - Yangkun Cao
- School of Artificial Intelligence Jilin University, Changchun, China
| | - Zhenyu Huang
- College of Computer Science and Technology, Jilin University, Changchun, China
- *Correspondence: Ying Xu, ; Zhenyu Huang,
| | - Ying Xu
- School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China
- *Correspondence: Ying Xu, ; Zhenyu Huang,
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He L, He W, Luo J, Xu M. Upregulated ENC1 predicts unfavorable prognosis and correlates with immune infiltration in endometrial cancer. Front Cell Dev Biol 2022; 10:919637. [PMID: 36531950 PMCID: PMC9751423 DOI: 10.3389/fcell.2022.919637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 11/17/2022] [Indexed: 07/30/2023] Open
Abstract
A better knowledge of the molecular process behind uterine corpus endometrial carcinoma (UCEC) is important for prognosis prediction and the development of innovative targeted gene therapies. The purpose of this research is to discover critical genes associated with UCEC. We analyzed the gene expression profiles of TCGA-UCEC and GSE17025, respectively, using Weighted Gene Co-expression Network Analysis (WGCNA) and differential gene expression analysis. From four sets of findings, a total of 95 overlapping genes were retrieved. On the 95 overlapping genes, KEGG pathway and GO enrichment analysis were conducted. Then, we mapped the PPI network of 95 overlapping genes using the STRING database. Twenty hub genes were evaluated using the Cytohubba plugin, including NR3C1, ATF3, KLF15, THRA, NR4A1, FOSB, PER3, HLF, NTRK3, EGR3, MAPK13, ARNTL2, PKM2, SCD, EIF5A, ADHFE1, RERGL, TUB, and ENC1. The expression levels of NR3C1, PKM2, and ENC1 were shown to be adversely linked with the survival time of UCEC patients using univariate Cox regression analysis and Kaplan-Meier survival calculation. ENC1 were also overexpressed in UCEC tumor tissues or cell lines, as shown by quantitative real-time PCR and Western blotting. Then we looked into it further and discovered that ENC1 expression was linked to tumor microenvironment and predicted various immunological checkpoints. In conclusion, our data indicate that ENC1 may be required for the development of UCEC and may serve as a future biomarker for diagnosis and therapy.
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Affiliation(s)
- Lingling He
- Department of Obstetrics and Gynecology, Ganzhou People's Hospital, Ganzhou, China
- Department of Obstetrics and Gynecology, Ganzhou Hospital-Nanfang Hospital, Southern Medical University, Ganzhou, China
- Department of Obstetrics and Gynecology, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, China
| | - Wenjing He
- Department of Endocrinology, Baoji Gaoxin Hospital, Baoji, China
| | - Ji Luo
- Department of Obstetrics and Gynecology, Ganzhou People's Hospital, Ganzhou, China
- Department of Obstetrics and Gynecology, Ganzhou Hospital-Nanfang Hospital, Southern Medical University, Ganzhou, China
- Department of Obstetrics and Gynecology, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, China
| | - Minjuan Xu
- Department of Obstetrics and Gynecology, Ganzhou People's Hospital, Ganzhou, China
- Department of Obstetrics and Gynecology, Ganzhou Hospital-Nanfang Hospital, Southern Medical University, Ganzhou, China
- Department of Obstetrics and Gynecology, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, China
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10
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Zhang T, Wong G. Gene expression data analysis using Hellinger correlation in weighted gene co-expression networks (WGCNA). Comput Struct Biotechnol J 2022; 20:3851-3863. [PMID: 35891798 PMCID: PMC9307959 DOI: 10.1016/j.csbj.2022.07.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 07/09/2022] [Accepted: 07/09/2022] [Indexed: 12/24/2022] Open
Abstract
Weighted gene co-expression network analysis (WGCNA) is used to detect clusters with highly correlated genes. Measurements of correlation most typically rely on linear relationships. However, a linear relationship does not always model pairwise functional-related dependence between genes. In this paper, we first compared 6 different correlation methods in their ability to capture complex dependence between genes in three different tissues. Next, we compared their gene-pairwise coefficient results and corresponding WGCNA results. Finally, we applied a recently proposed correlation method, Hellinger correlation, as a more sensitive correlation measurement in WGCNA. To test this method, we constructed gene networks containing co-expression gene modules from RNA-seq data of human frontal cortex from Alzheimer's disease patients. To test the generality, we also used a microarray data set from human frontal cortex, single cell RNA-seq data from human prefrontal cortex, RNA-seq data from human temporal cortex, and GTEx data from heart. The Hellinger correlation method captures essentially similar results as other linear correlations in WGCNA, but provides additional new functional relationships as exemplified by uncovering a link between inflammation and mitochondria function. We validated the network constructed with the microarray and single cell sequencing data sets and a RNA-seq dataset of temporal cortex. We observed that this new correlation method enables the detection of non-linear biologically meaningful relationships among genes robustly and provides a complementary new approach to WGCNA. Thus, the application of Hellinger correlation to WGCNA provides a more flexible correlation approach to modelling networks in gene expression analysis that uncovers novel network relationships.
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Affiliation(s)
- Tianjiao Zhang
- Cancer Centre, Centre for Reproduction, Development and Aging, Department of Public Health and Medicinal Administration, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau Special Administrative Region
| | - Garry Wong
- Cancer Centre, Centre for Reproduction, Development and Aging, Department of Public Health and Medicinal Administration, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau Special Administrative Region
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11
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Zainal-Abidin RA, Harun S, Vengatharajuloo V, Tamizi AA, Samsulrizal NH. Gene Co-Expression Network Tools and Databases for Crop Improvement. PLANTS (BASEL, SWITZERLAND) 2022; 11:1625. [PMID: 35807577 PMCID: PMC9269215 DOI: 10.3390/plants11131625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/05/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
Transcriptomics has significantly grown as a functional genomics tool for understanding the expression of biological systems. The generated transcriptomics data can be utilised to produce a gene co-expression network that is one of the essential downstream omics data analyses. To date, several gene co-expression network databases that store correlation values, expression profiles, gene names and gene descriptions have been developed. Although these resources remain scattered across the Internet, such databases complement each other and support efficient growth in the functional genomics area. This review presents the features and the most recent gene co-expression network databases in crops and summarises the present status of the tools that are widely used for constructing the gene co-expression network. The highlights of gene co-expression network databases and the tools presented here will pave the way for a robust interpretation of biologically relevant information. With this effort, the researcher would be able to explore and utilise gene co-expression network databases for crops improvement.
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Affiliation(s)
- Rabiatul-Adawiah Zainal-Abidin
- Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute (MARDI), Serdang 43400, Selangor, Malaysia; (R.-A.Z.-A.); (A.-A.T.)
| | - Sarahani Harun
- Centre for Bioinformatics Research, Institute of Systems Biology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia;
| | - Vinothienii Vengatharajuloo
- Centre for Bioinformatics Research, Institute of Systems Biology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia;
| | - Amin-Asyraf Tamizi
- Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute (MARDI), Serdang 43400, Selangor, Malaysia; (R.-A.Z.-A.); (A.-A.T.)
- Department of Plant Science, Kulliyyah of Science, International Islamic Universiti Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Nurul Hidayah Samsulrizal
- Department of Plant Science, Kulliyyah of Science, International Islamic Universiti Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
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GCEN: An Easy-to-Use Toolkit for Gene Co-Expression Network Analysis and lncRNAs Annotation. Curr Issues Mol Biol 2022; 44:1479-1487. [PMID: 35723358 PMCID: PMC9164028 DOI: 10.3390/cimb44040100] [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: 02/06/2022] [Revised: 03/13/2022] [Accepted: 03/23/2022] [Indexed: 02/07/2023] Open
Abstract
Gene co-expression network analysis has been widely used in gene function annotation, especially for long noncoding RNAs (lncRNAs). However, there is a lack of effective cross-platform analysis tools. For biologists to easily build a gene co-expression network and to predict gene function, we developed GCEN, a cross-platform command-line toolkit developed with C++. It is an efficient and easy-to-use solution that will allow everyone to perform gene co-expression network analysis without the requirement of sophisticated programming skills, especially in cases of RNA-Seq research and lncRNAs function annotation. Because of its modular design, GCEN can be easily integrated into other pipelines.
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