1
|
Arase M, Nakanishi N, Tsutsumi R, Kawakami A, Arai Y, Sakaue H, Oto J. The Utility of Urinary Titin to Diagnose and Predict the Prognosis of Acute Myocardial Infarction. Int J Mol Sci 2024; 25:573. [PMID: 38203744 PMCID: PMC10778763 DOI: 10.3390/ijms25010573] [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] [Received: 11/11/2023] [Revised: 12/18/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Early detection and management are crucial for better prognosis in acute myocardial infarction (AMI). Serum titin, a component of the sarcomere in cardiac and skeletal muscle, was associated with AMI. Thus, we hypothesized that urinary N-fragment titin may be a biomarker for its diagnosis and prognosis. Between January 2021 and November 2021, we prospectively enrolled 83 patients with suspected AMI. Their urinary N-fragment titin, serum high-sensitivity troponin I (hsTnI), creatine kinase (CK), and creatine kinase-MB (CK-MB) were measured on admission. Then, urinary titin was assessed as diagnostic and prognostic biomarker in AMI. Among 83 enrolled patients, 51 patients were diagnosed as AMI. In AMI patients who were admitted as early as 3 h or longer after symptom onset, their urinary titin levels were significantly higher than non-AMI patients who are also admitted 3 h or longer after symptom onset (12.76 [IQR 5.87-16.68] pmol/mgCr (creatinine) and 5.13 [IQR 3.93-11.25] pmol/mgCr, p = 0.045, respectively). Moreover, the urinary titin levels in patients who died during hospitalization were incredibly higher than in those who were discharged (15.90 [IQR 13.46-22.61] pmol/mgCr and 4.90 [IQR 3.55-11.95] pmol/mgCr, p = 0.023). Urinary N-fragment titin can be used as non-invasive early diagnostic biomarker in AMI. Furthermore, it associates with hospital discharge disposition, providing prognostic utility.
Collapse
Affiliation(s)
- Miharu Arase
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan (Y.A.); (J.O.)
| | - Nobuto Nakanishi
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan (Y.A.); (J.O.)
- Department of Disaster and Emergency Medicine, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan
| | - Rie Tsutsumi
- Department of Nutrition and Metabolism, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan
| | - Ayuka Kawakami
- Department of Nutrition and Metabolism, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan
| | - Yuta Arai
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan (Y.A.); (J.O.)
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan
| | - Jun Oto
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan (Y.A.); (J.O.)
| |
Collapse
|
2
|
Xu H, Wang Z, Wang Y, Pan S, Zhao W, Chen M, Chen X, Tao T, Ma L, Ni Y, Li W. GSTM2 alleviates heart failure by inhibiting DNA damage in cardiomyocytes. Cell Biosci 2023; 13:220. [PMID: 38037116 PMCID: PMC10688053 DOI: 10.1186/s13578-023-01168-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 11/08/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Heart failure (HF) seriously threatens human health worldwide. However, the pathological mechanisms underlying HF are still not fully clear. RESULTS In this study, we performed proteomics and transcriptomics analyses on samples from human HF patients and healthy donors to obtain an overview of the detailed changes in protein and mRNA expression that occur during HF. We found substantial differences in protein expression changes between the atria and ventricles of myocardial tissues from patients with HF. Interestingly, the metabolic state of ventricular tissues was altered in HF samples, and inflammatory pathways were activated in atrial tissues. Through analysis of differentially expressed genes in HF samples, we found that several glutathione S-transferase (GST) family members, especially glutathione S-transferase M2-2 (GSTM2), were decreased in all the ventricular samples. Furthermore, GSTM2 overexpression effectively relieved the progression of cardiac hypertrophy in a transverse aortic constriction (TAC) surgery-induced HF mouse model. Moreover, we found that GSTM2 attenuated DNA damage and extrachromosomal circular DNA (eccDNA) production in cardiomyocytes, thereby ameliorating interferon-I-stimulated macrophage inflammation in heart tissues. CONCLUSIONS Our study establishes a proteomic and transcriptomic map of human HF tissues, highlights the functional importance of GSTM2 in HF progression, and provides a novel therapeutic target for HF.
Collapse
Affiliation(s)
- Hongfei Xu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Zhen Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Yalin Wang
- Department of Operation Room, The First Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Shaobo Pan
- Department of Operation Room, The First Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Wenting Zhao
- Department of Cardiology, The First Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Miao Chen
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Xiaofan Chen
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Tingting Tao
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Liang Ma
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Yiming Ni
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, School of Medicine, Number 79 Qingchun Road, Hangzhou, China.
| | - Weidong Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, School of Medicine, Number 79 Qingchun Road, Hangzhou, China.
| |
Collapse
|
3
|
Urinary Titin Is a Novel Biomarker for Muscle Atrophy in Nonsurgical Critically Ill Patients: A Two-Center, Prospective Observational Study. Crit Care Med 2021; 48:1327-1333. [PMID: 32706557 DOI: 10.1097/ccm.0000000000004486] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Although skeletal muscle atrophy is common in critically ill patients, biomarkers associated with muscle atrophy have not been identified reliably. Titin is a spring-like protein found in muscles and has become a measurable biomarker for muscle breakdown. We hypothesized that urinary titin is useful for monitoring muscle atrophy in critically ill patients. Therefore, we investigated urinary titin level and its association with muscle atrophy in critically ill patients. DESIGN Two-center, prospective observational study. SETTING Mixed medical/surgical ICU in Japan. PATIENTS Nonsurgical adult patients who were expected to remain in ICU for greater than 5 days. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Urine samples were collected on days 1, 2, 3, 5, and 7 of ICU admission. To assess muscle atrophy, rectus femoris cross-sectional area and diaphragm thickness were measured with ultrasound on days 1, 3, 5, and 7. Secondary outcomes included its relationship with ICU-acquired weakness, ICU Mobility Scale, and ICU mortality. Fifty-six patients and 232 urinary titin measurements were included. Urinary titin (normal range: 1-3 pmol/mg creatinine) was 27.9 (16.8-59.6), 47.6 (23.5-82.4), 46.6 (24.4-97.6), 38.4 (23.6-83.0), and 49.3 (27.4-92.6) pmol/mg creatinine on days 1, 2, 3, 5, and 7, respectively. Cumulative urinary titin level was significantly associated with rectus femoris muscle atrophy on days 3-7 (p ≤ 0.03), although urinary titin level was not associated with change in diaphragm thickness (p = 0.31-0.45). Furthermore, cumulative urinary titin level was associated with occurrence of ICU-acquired weakness (p = 0.01) and ICU mortality (p = 0.02) but not with ICU Mobility Scale (p = 0.18). CONCLUSIONS In nonsurgical critically ill patients, urinary titin level increased 10-30 times compared with the normal level. The increased urinary titin level was associated with lower limb muscle atrophy, occurrence of ICU-acquired weakness, and ICU mortality.
Collapse
|
4
|
Nakano H, Hashimoto H, Mochizuki M, Naraba H, Takahashi Y, Sonoo T, Matsubara T, Yamakawa K, Nakamura K. Urine Titin N-Fragment as a Biomarker of Muscle Injury for Critical Illness Myopathy. Am J Respir Crit Care Med 2021; 203:515-518. [PMID: 33030965 DOI: 10.1164/rccm.202008-3089le] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
5
|
Urinary Titin N-Fragment as a Biomarker of Muscle Atrophy, Intensive Care Unit-Acquired Weakness, and Possible Application for Post-Intensive Care Syndrome. J Clin Med 2021; 10:jcm10040614. [PMID: 33561946 PMCID: PMC7915692 DOI: 10.3390/jcm10040614] [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: 12/29/2020] [Revised: 01/29/2021] [Accepted: 02/03/2021] [Indexed: 12/15/2022] Open
Abstract
Titin is a giant protein that functions as a molecular spring in sarcomeres. Titin interconnects the contraction of actin-containing thin filaments and myosin-containing thick filaments. Titin breaks down to form urinary titin N-fragments, which are measurable in urine. Urinary titin N-fragment was originally reported to be a useful biomarker in the diagnosis of muscle dystrophy. Recently, the urinary titin N-fragment has been increasingly gaining attention as a novel biomarker of muscle atrophy and intensive care unit-acquired weakness in critically ill patients, in whom titin loss is a possible pathophysiology. Furthermore, several studies have reported that the urinary titin N-fragment also reflected muscle atrophy and weakness in patients with chronic illnesses. It may be used to predict the risk of post-intensive care syndrome or to monitor patients' condition after hospital discharge for better nutritional and rehabilitation management. We provide several tips on the use of this promising biomarker in post-intensive care syndrome.
Collapse
|
6
|
Chan BYH, Roczkowsky A, Cho WJ, Poirier M, Sergi C, Keschrumrus V, Churko JM, Granzier H, Schulz R. MMP inhibitors attenuate doxorubicin cardiotoxicity by preventing intracellular and extracellular matrix remodelling. Cardiovasc Res 2021; 117:188-200. [PMID: 31995179 PMCID: PMC7797218 DOI: 10.1093/cvr/cvaa017] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 12/18/2019] [Accepted: 01/21/2020] [Indexed: 12/20/2022] Open
Abstract
AIMS Heart failure is a major complication in cancer treatment due to the cardiotoxic effects of anticancer drugs, especially from the anthracyclines such as doxorubicin (DXR). DXR enhances oxidative stress and stimulates matrix metalloproteinase-2 (MMP-2) in cardiomyocytes. We investigated whether MMP inhibitors protect against DXR cardiotoxicity given the role of MMP-2 in proteolyzing sarcomeric proteins in the heart and remodelling the extracellular matrix. METHODS AND RESULTS Eight-week-old male C57BL/6J mice were treated with DXR weekly with or without MMP inhibitors doxycycline or ONO-4817 by daily oral gavage for 4 weeks. Echocardiography was used to determine cardiac function and left ventricular remodelling before and after treatment. MMP inhibitors ameliorated DXR-induced systolic and diastolic dysfunction by reducing the loss in left ventricular ejection fraction, fractional shortening, and E'/A'. MMP inhibitors attenuated adverse left ventricular remodelling, reduced cardiomyocyte dropout, and prevented myocardial fibrosis. DXR increased myocardial MMP-2 activity in part also by upregulating N-terminal truncated MMP-2. Immunogold transmission electron microscopy showed that DXR elevated MMP-2 levels within the sarcomere and mitochondria which were associated with myofilament lysis, mitochondrial degeneration, and T-tubule distention. DXR-induced myofilament lysis was associated with increased titin proteolysis in the heart which was prevented by ONO-4817. DXR also increased the level and activity of MMP-2 in human embryonic stem cell-derived cardiomyocytes, which was reduced by ONO-4817. CONCLUSIONS MMP-2 activation is an early event in DXR cardiotoxicity and contributes to myofilament lysis by proteolyzing cardiac titin. Two orally available MMP inhibitors ameliorated DXR cardiotoxicity by attenuating intracellular and extracellular matrix remodelling, suggesting their use may be a potential prophylactic strategy to prevent heart injury during chemotherapy.
Collapse
Affiliation(s)
- Brandon Y H Chan
- Department of Pediatrics and Pharmacology, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, AB T6G 2S2, Canada
| | - Andrej Roczkowsky
- Department of Pediatrics and Pharmacology, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, AB T6G 2S2, Canada
| | - Woo Jung Cho
- Faculty of Medicine and Dentistry Cell Imaging Centre, University of Alberta, Edmonton, AB, Canada
| | - Mathieu Poirier
- Department of Pediatrics and Pharmacology, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, AB T6G 2S2, Canada
| | - Consolato Sergi
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Vic Keschrumrus
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, USA
| | - Jared M Churko
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, USA
| | - Henk Granzier
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, USA
| | - Richard Schulz
- Department of Pediatrics and Pharmacology, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, AB T6G 2S2, Canada
| |
Collapse
|
7
|
Palau P, Reese-Petersen AL, Domínguez E, Ramón JM, López L, Mollar A, Chorro FJ, Sanchis J, Núñez J. Matrix metalloproteinase-12 cleaved fragment of titin as a predictor of functional capacity in patients with heart failure and preserved ejection fraction. SCAND CARDIOVASC J 2020; 55:9-14. [PMID: 33030056 DOI: 10.1080/14017431.2020.1831052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Serum levels of matrix metalloproteinase-12 cleaved fragment of titin (TIM), a novel circulatory biomarker specific for cardiac titin degradation, has emerged as a potential biomarker in cardiovascular diseases. In this work, we aimed to evaluate the association between TIM and maximal functional capacity assessed by the percentage of predicted peak exercise oxygen uptake (pp-peakVO2) in patients with heart failure and preserved ejection fraction (HFpEF). Design. In this post-hoc study, we included 46 stable symptomatic (New York Heart Association II-III) HFpEF patients enrolled in the TRAINING-HF study (NCT02638961). pp-peak-VO2 was calculated from baseline values. Baseline circulating levels of TIM were measured by competitive ELISA in serum from the TRAINING-HF patients. The independent association between TIM and pp-peakVO2 was evaluated by multivariate linear regression analysis. Results. The mean age of the sample was 73.8 ± 8.7 years, 56.5% were females, and 76.1% were on NYHA II. The medians of pp-peakVO2 and TIM were 60.9% (50.4-69.3), and 130.1 ng/mL (98.1-159.5), respectively. The median of NT-proBNP was 912 pg/mL (302-1826). pp-peakVO2 was significant and inversely correlated with TIM (r= -41, p = .005). In multivariate analysis, after adjusting for NYHA class, hypertension, body mass index, and glomerular filtration rate, higher TIM was significantly associated with lower pp-peak VO2 (p = .029). Conclusions. In this sample of stable and symptomatic HFpEF patients, higher serum levels of TIM identified patients with worse functional status.
Collapse
Affiliation(s)
- Patricia Palau
- Servicio de Cardiología, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia, Valencia, Spain
| | | | - Eloy Domínguez
- FISABIO, Universitat Jaume I. Castellón, Castellón, Spain
| | - Jose María Ramón
- Servicio de Cardiología, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia, Valencia, Spain
| | - Laura López
- Facultat de Fisioterapia, Universitat de València, Valencia, Spain
| | - Anna Mollar
- Servicio de Cardiología, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia, Valencia, Spain
| | - Francisco Javier Chorro
- Servicio de Cardiología, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia, Valencia, Spain.,CIBER Cardiovascular, Madrid, Spain
| | - Juan Sanchis
- Servicio de Cardiología, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia, Valencia, Spain.,CIBER Cardiovascular, Madrid, Spain
| | - Julio Núñez
- Servicio de Cardiología, Hospital Clínico Universitario, INCLIVA, Universitat de Valencia, Valencia, Spain.,CIBER Cardiovascular, Madrid, Spain
| |
Collapse
|
8
|
Kang M, Seong Y, Mahmud J, Nguyen BT. Obscurin and Clusterin Elevation in Serum of Acute Myocardial Infarction Patients. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.11955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Min‐Jung Kang
- Molecular Recognition Research CenterKorea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
- Division of Bio‐Medical Science & Technology, KIST SchoolKorea University of Science and Technology Seoul 02792 Republic of Korea
| | - Yunseo Seong
- Division of Bio‐Medical Science & Technology, KIST SchoolKorea University of Science and Technology Seoul 02792 Republic of Korea
| | - Joyeta Mahmud
- Division of Bio‐Medical Science & Technology, KIST SchoolKorea University of Science and Technology Seoul 02792 Republic of Korea
| | - Binh Thanh Nguyen
- Division of Bio‐Medical Science & Technology, KIST SchoolKorea University of Science and Technology Seoul 02792 Republic of Korea
| |
Collapse
|
9
|
Abstract
Titin/connectin, encoded by the TTN gene, is the largest protein in humans. It acts as a molecular spring in the sarcomere of striated muscles. Although titin is degraded in the skeletal muscles of patients with muscular dystrophies, studies of titin have been limited by its mammoth size. Mutations in the TTN gene have been detected not only in skeletal muscle diseases but in cardiac muscle diseases. TTN mutations result in a wide variety of phenotypes. Recent proteome analysis has found that titin fragments are excreted into the urine of patents with Duchenne muscular dystrophy (DMD). Enzyme-linked immunosorbent assays (ELISAs) have shown that urinary titin is a useful noninvasive biomarker for the diagnosis and screening of not only DMD, but also of neuromuscular diseases, for predicting the outcome of cardiomyopathy and for evaluating physical activities. The development of ELISA systems to measure urinary titin has opened a door to studying muscle degradation directly and noninvasively. This review provides current understanding of urinary titin and future prospects for measuring this protein.
Collapse
|
10
|
Rahim MAA, Rahim ZHA, Ahmad WAWAN, Bakri MM, Ismail MD, Hashim OH. Inverse changes in plasma tetranectin and titin levels in patients with type 2 diabetes mellitus: a potential predictor of acute myocardial infarction? Acta Pharmacol Sin 2018; 39:1197-1207. [PMID: 29417940 PMCID: PMC6289394 DOI: 10.1038/aps.2017.141] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 10/10/2017] [Indexed: 01/05/2023] Open
Abstract
An early intervention using biomarkers to predict acute myocardial infarction (AMI) will effectively reduce global heart attack incidence, particularly among high-risk patients with type 2 diabetes mellitus (T2DM). This study attempted to identify potential biomarkers by detecting changes in the levels of plasma proteins in T2DM patients following onset of AMI in comparison with those without AMI. Volunteer T2DM patients without AMI (control; n=10) and T2DM patients with AMI (n=10) were recruited. Plasma samples from these patients were evaluated via two-dimensional gel electrophoresis (2DE) to screen for proteins with level changes between the two groups. The abundance of spots on gel images was analyzed using Progenesis SameSpots and subjected to false discovery rate (FDR) analysis. Protein spots with statistically significant changes of at least 1.5 fold were selected for mass spectrometry (MS) analysis. Due to strong cardiac connections, tetranectin and titin were evaluated by enzymelinked immunosorbent assay (ELISA). The adjusted P-values and fold changes between the two groups resulted in identification of 34 protein spots with significantly altered abundance. Upon MS analysis, 17 plasma proteins were identified: tetranectin, titin, clusterin, haptoglobin, myosin-13, zinc fnger protein 445, DNA repair protein RAD50, serum albumin, apolipoprotein A-IV, caspase-6, aminoacyl tRNA synthase complex-interacting multifunctional protein 1, serotransferrin, retinol-binding protein 4, transthyretin, alpha-1-antitrypsin, apolipoprotein A-I and serum amyloid A. Comparable patterns of changes in tetranectin and titin between the control and AMI groups were confirmed using ELISA. In summary, tetranectin and titin in plasma appeared to be closely associated with the onset of AMI among T2DM patients and can be used as potential biomarkers for prediction of a cardiac event, though this requires validation in a prospective cohort study.
Collapse
|
11
|
Zhang YH, Huang T, Chen L, Xu Y, Hu Y, Hu LD, Cai Y, Kong X. Identifying and analyzing different cancer subtypes using RNA-seq data of blood platelets. Oncotarget 2017; 8:87494-87511. [PMID: 29152097 PMCID: PMC5675649 DOI: 10.18632/oncotarget.20903] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/16/2017] [Indexed: 12/11/2022] Open
Abstract
Detection and diagnosis of cancer are especially important for early prevention and effective treatments. Traditional methods of cancer detection are usually time-consuming and expensive. Liquid biopsy, a newly proposed noninvasive detection approach, can promote the accuracy and decrease the cost of detection according to a personalized expression profile. However, few studies have been performed to analyze this type of data, which can promote more effective methods for detection of different cancer subtypes. In this study, we applied some reliable machine learning algorithms to analyze data retrieved from patients who had one of six cancer subtypes (breast cancer, colorectal cancer, glioblastoma, hepatobiliary cancer, lung cancer and pancreatic cancer) as well as healthy persons. Quantitative gene expression profiles were used to encode each sample. Then, they were analyzed by the maximum relevance minimum redundancy method. Two feature lists were obtained in which genes were ranked rigorously. The incremental feature selection method was applied to the mRMR feature list to extract the optimal feature subset, which can be used in the support vector machine algorithm to determine the best performance for the detection of cancer subtypes and healthy controls. The ten-fold cross-validation for the constructed optimal classification model yielded an overall accuracy of 0.751. On the other hand, we extracted the top eighteen features (genes), including TTN, RHOH, RPS20, TRBC2, in another feature list, the MaxRel feature list, and performed a detailed analysis of them. The results indicated that these genes could be important biomarkers for discriminating different cancer subtypes and healthy controls.
Collapse
Affiliation(s)
- Yu-Hang Zhang
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, People's Republic of China.,Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| | - Tao Huang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| | - Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai 201306, People's Republic of China
| | - YaoChen Xu
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| | - Yu Hu
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| | - Lan-Dian Hu
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| | - Yudong Cai
- School of Life Sciences, Shanghai University, Shanghai 200444, People's Republic of China
| | - Xiangyin Kong
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| |
Collapse
|