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Rosati D, Palmieri M, Brunelli G, Morrione A, Iannelli F, Frullanti E, Giordano A. Differential gene expression analysis pipelines and bioinformatic tools for the identification of specific biomarkers: A review. Comput Struct Biotechnol J 2024; 23:1154-1168. [PMID: 38510977 PMCID: PMC10951429 DOI: 10.1016/j.csbj.2024.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/22/2024] Open
Abstract
In recent years, the role of bioinformatics and computational biology together with omics techniques and transcriptomics has gained tremendous importance in biomedicine and healthcare, particularly for the identification of biomarkers for precision medicine and drug discovery. Differential gene expression (DGE) analysis is one of the most used techniques for RNA-sequencing (RNA-seq) data analysis. This tool, which is typically used in various RNA-seq data processing applications, allows the identification of differentially expressed genes across two or more sample sets. Functional enrichment analyses can then be performed to annotate and contextualize the resulting gene lists. These studies provide valuable information about disease-causing biological processes and can help in identifying molecular targets for novel therapies. This review focuses on differential gene expression (DGE) analysis pipelines and bioinformatic techniques commonly used to identify specific biomarkers and discuss the advantages and disadvantages of these techniques.
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Affiliation(s)
- Diletta Rosati
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
- Cancer Genomics & Systems Biology Lab, Dept. of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Italy
| | - Maria Palmieri
- Cancer Genomics & Systems Biology Lab, Dept. of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Italy
| | - Giulia Brunelli
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Italy
| | - Andrea Morrione
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Francesco Iannelli
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elisa Frullanti
- Cancer Genomics & Systems Biology Lab, Dept. of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Italy
| | - Antonio Giordano
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
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Liu Y, Huang Y, Mo G, Zhou T, Hou Q, Shi C, Yu J, Lv Y. Combined prognostic value of preoperative serum thyrotrophin and thyroid hormone concentration in papillary thyroid cancer. J Clin Lab Anal 2022; 36:e24503. [PMID: 35666615 PMCID: PMC9279971 DOI: 10.1002/jcla.24503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/12/2022] [Accepted: 05/06/2022] [Indexed: 01/02/2023] Open
Abstract
Background A growing number of studies have found a close association between thyroid hormones and thyrotrophin (TSH), and they also have prognostic significance in some cancer types; this study aimed to investigate the prognostic value of free triiodothyronine (fT3), free thyroxine (fT4), fT3/fT4, TSH, and their combination in patients with papillary thyroid carcinoma (PTC). Methods This study retrospectively analyzed the relevant data of 726 newly diagnosed PTC patients. Both univariate and multivariate analyses were used to predict the recurrence rate, and a risk score was established. In addition, with the use of a random survival forest, a random forest (RF) score was constructed. After calculating the area under the curve (AUC), the diagnostic efficacy of risk score, RF score, and four indicators was compared. Results fT3, fT4, fT3/fT4, and TSH were strongly associated with some invasive clinicopathological features and postoperative recurrence. Patients with high expression of fT4 and TSH have a high risk of recurrence. By contrast, patients with high expression of fT3 and fT3/fT4 have a low risk of recurrence. At the same time, the combined use of various indicators is more helpful for establishing an accurate diagnosis. By comparison, we found that the RF score was better than the risk score in terms of predicting the recurrence of PTC. Conclusion The diagnostic accuracy of a combination of fT3, fT4, fT3/fT4, and TSH can help improve our clinical estimate of the risk of recurrent PTC, thus allowing the development of a more effective treatment plan for patients.
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Affiliation(s)
- Yushu Liu
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China.,The second clinical medicine college, Medical Department, Nanchang University, Nanchang, China
| | - Yanyi Huang
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China.,The second clinical medicine college, Medical Department, Nanchang University, Nanchang, China
| | - Guoheng Mo
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China.,The Queen of Mary college, Medical Department, Nanchang University, Nanchang, China
| | - Tao Zhou
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qian Hou
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chaoqun Shi
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jichun Yu
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yunxia Lv
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
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Huang Y, Yi T, Liu Y, Yan M, Peng X, Lv Y. The landscape of tumors-infiltrate immune cells in papillary thyroid carcinoma and its prognostic value. PeerJ 2021; 9:e11494. [PMID: 34055497 PMCID: PMC8142931 DOI: 10.7717/peerj.11494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 04/29/2021] [Indexed: 12/19/2022] Open
Abstract
Introduction Thyroid cancer is a very common malignant tumor in the endocrine system, while the incidence of papillary thyroid carcinoma (PTC) throughout the world also shows a trend of increase year by year. In this study, we constructed two models: ICIscore and Riskscore. Combined with these two models, we can make more accurate and reasonable inferences about the prognosis of PTC patients. Methods We selected 481 PTC samples from TCGA and 147 PTC samples from GEO (49 samples in GSE33630, 65 samples in GSE35570 and 33 samples in GSE60542). We performed consistent clustering for them and divided them into three subgroups and screened differentially expressed genes from these three subgroups. Then we divided the differential genes into three subtypes. We also distinguished the up-regulated and down-regulated genes and calculated ICIscore for each PTC sample. ICIscore consists of two parts: (1) the PCAu was calculated from up-regulated genes. (2) the PCAd was calculated from down-regulated genes. The PCAu and PCAd of each sample were the first principal component of the relevant gene. What’s more, we divided the patients into two groups and constructed mRNA prognostic signatures. Additionally we also verified the independent prognostic value of the signature. Results Though ICIscore, we were able to observe the relationship between immune infiltration and prognosis. The result suggests that the activation of the immune system may have both positive and negative consequences. Though Riskscore, we could make more accurate predictions about the prognosis of patients with PTC. Meanwhile, we also generated and validated the ICIscore group and Riskscore group respectively. Conclusion All the research results show that by combining the two models constructed, ICIscore and Riskscore, we can make a more accurate and reasonable inference about the prognosis of patients with clinical PTC patients. This suggests that we can provide more effective and reasonable treatment plan for clinical PTC patients.
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Affiliation(s)
- Yanyi Huang
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Nanchang University, The Second Clinical Medicine College, Nanchang, Jiangxi, China
| | - Tao Yi
- Department of Otolaryngology, People's Hospital of Yichun, Yichun, Jiangxi, China
| | - Yushu Liu
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Nanchang University, The Second Clinical Medicine College, Nanchang, Jiangxi, China
| | - Mengyun Yan
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Nanchang University, The First Clinical Medicine College, Nanchang, Jiangxi, China
| | - Xinli Peng
- Department of Otolaryngology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yunxia Lv
- Department of Thyroid Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Silvain J, Zeitouni M, Paradies V, Zheng HL, Ndrepepa G, Cavallini C, Feldman DN, Sharma SK, Mehilli J, Gili S, Barbato E, Tarantini G, Ooi SY, von Birgelen C, Jaffe AS, Thygesen K, Montalescot G, Bulluck H, Hausenloy DJ. Procedural myocardial injury, infarction and mortality in patients undergoing elective PCI: a pooled analysis of patient-level data. Eur Heart J 2021; 42:323-334. [PMID: 33257958 PMCID: PMC7850039 DOI: 10.1093/eurheartj/ehaa885] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/10/2020] [Accepted: 10/14/2020] [Indexed: 12/28/2022] Open
Abstract
AIMS The prognostic importance of cardiac procedural myocardial injury and myocardial infarction (MI) in chronic coronary syndrome (CCS) patients undergoing elective percutaneous coronary intervention (PCI) is still debated. METHODS AND RESULTS We analysed individual data of 9081 patients undergoing elective PCI with normal pre-PCI baseline cardiac troponin (cTn) levels. Multivariate models evaluated the association between post-PCI elevations in cTn and 1-year mortality, while an interval analysis evaluated the impact of the size of the myocardial injury on mortality. Our analysis was performed in the overall population and also according to the type of cTn used [52.0% had high-sensitivity cTn (hs-cTn)]. Procedural myocardial injury, as defined by the Fourth Universal Definition of MI (UDMI) [post-PCI cTn elevation ≥1 × 99th percentile upper reference limit (URL)], occurred in 52.8% of patients and was not associated with 1-year mortality [adj odds ratio (OR), 1.35, 95% confidence interval (CI) (0.84-1.77), P = 0.21]. The association between post-PCI cTn elevation and 1-year mortality was significant starting ≥3 × 99th percentile URL. Major myocardial injury defined by post-PCI ≥5 × 99th percentile URL occurred in 18.2% of patients and was associated with a two-fold increase in the adjusted odds of 1-year mortality [2.29, 95% CI (1.32-3.97), P = 0.004]. In the subset of patients for whom periprocedural evidence of ischaemia was collected (n = 2316), Type 4a MI defined by the Fourth UDMI occurred in 12.7% of patients and was strongly associated with 1-year mortality [adj OR 3.21, 95% CI (1.42-7.27), P = 0.005]. We also present our results according to the type of troponin used (hs-cTn or conventional troponin). CONCLUSION Our analysis has demonstrated that in CCS patients with normal baseline cTn levels, the post-PCI cTn elevation of ≥5 × 99th percentile URL used to define Type 4a MI is associated with 1-year mortality and could be used to detect 'major' procedural myocardial injury in the absence of procedural complications or evidence of new myocardial ischaemia.
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Affiliation(s)
- Johanne Silvain
- Sorbonne Université, ACTION Study Group, Institut de Cardiologie, Hôpital Pitié-Salpêtrière (AP-HP), INSERM UMRS 1166, 47-83 bld de l’Hôpital, 75013 Paris, France
| | - Michel Zeitouni
- Sorbonne Université, ACTION Study Group, Institut de Cardiologie, Hôpital Pitié-Salpêtrière (AP-HP), INSERM UMRS 1166, 47-83 bld de l’Hôpital, 75013 Paris, France
| | - Valeria Paradies
- Cardiology Department, Maasstad Hospital, Rotterdam, Netherlands
| | - Huili L Zheng
- Health Promotion Board, National Registry of Diseases Office, Singapore, Singapore
| | - Gjin Ndrepepa
- Department of Adult Cardiology, Deutsches Herzzentrum München, Technische Universität, Munich, Germany
| | - Claudio Cavallini
- Division of Cardiology, Ospedale S Maria della Misericordia, Piazzale Meneghini 1, Perugia 06100, Italy
| | - Dimitri N Feldman
- Division of Cardiology, Weill Cornell Medical College, New York, NY, USA
| | - Samin K Sharma
- Cardiac Catheterization Laboratory, Cardiovascular Institute, Mount Sinai Hospital, New York, NY, USA
| | - Julinda Mehilli
- Munich University Clinic, Ludwig-Maximilians University, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | | | - Emanuele Barbato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Napoli, Italy
| | - Giuseppe Tarantini
- Department of Cardiac, Thoracic and Vascular Sciences, University of Padua Medical School, Padua, Italy
| | - Sze Y Ooi
- Eastern Heart Clinic, Prince of Wales Hospital, Sydney, NSW, Australia
| | - Clemens von Birgelen
- Department of Cardiology, Thoraxcentrum Twente, Medisch Spectrum Twente, Enschede, Netherlands
- Department of Health Technology and Services Research, Faculty of Behavioural, Management and Social Sciences, Technical Medical Centre, University of Twente, Enschede, Netherlands
| | - Allan S Jaffe
- Department of Cardiology, Mayo Clinic, Rochester, MN, USA
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Kristian Thygesen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Gilles Montalescot
- Sorbonne Université, ACTION Study Group, Institut de Cardiologie, Hôpital Pitié-Salpêtrière (AP-HP), INSERM UMRS 1166, 47-83 bld de l’Hôpital, 75013 Paris, France
| | | | - Derek J Hausenloy
- The Hatter Cardiovascular Institute, University College London, London, UK
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore, Singapore, Singapore
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taichung City, Taiwan
- Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
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