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Ezzeldin N, El-Lebedy D, Hassan M, Shalaby AO, Hussein SAM, Gharib AM, Hamdy G, Mohammed AM, Ramadan A, Sobeih ME. Evaluating circulating cell-free DNA and DNA integrity index as biomarkers in non-small cell lung cancer. J Egypt Natl Canc Inst 2024; 36:21. [PMID: 38880832 DOI: 10.1186/s43046-024-00219-1] [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: 10/16/2023] [Accepted: 03/23/2024] [Indexed: 06/18/2024] Open
Abstract
BACKGROUND Analysis of free DNA molecules shed from tumour cells in plasma of patients referred as circulating tumour DNA (ctDNA) with reference to physiological circulating cell-free DNA (cfDNA) is nowadays exploited as liquid biopsy and is considered a new emerging promising biomarker for diagnosis, selection of proper treatment, and prognosis of cancer. DNA integrity index (DII) is assessed by calculating the ratio between the concentration of long cfDNA strands released from tumour cells (ALU247) and the short strands released from normal cells (ALU115). The aim of the current study was to evaluate DII as a potential diagnostic and prognostic biomarker of NSCLC. METHODS Our study included 48 NSCLC patients diagnosed as primary NSCLC before starting treatment, 30 COPD patients diagnosed clinically, radiologically, and subjected to chest high-resolution computerized tomography, and 40 healthy controls. cfDNA concentration and DII were measured by quantitative real-time polymerase chain reaction (qPCR). RESULTS ALU115, ALU247, and DII were significantly higher in NSCLC compared to COPD patients (p < 0.0001) and controls (p < 0.0001) and in COPD patients compared to control subjects (p < 0.0001). DII positively correlated with the stage of tumour (p = 0.01), tumour metastasis (p = 0.004), and with adenocarcinoma compared to other histopathological types (p = 0.02). To evaluate clinical utility of DII in NSCLC, ROC curve analysis demonstrated an AUC of 0.91 at a cut-off value of 0.44 with total accuracy = 85.6%, sensitivity = 90%, specificity = 83%, PPV = 78.1%, and NPV = 92.1%. CONCLUSION cfDNA and DII represent a promising diagnostic and prognostic tool in NSCLC. This type of noninvasive liquid biopsy revealed its chance in the screening, early diagnosis, and monitoring of NSCLC.
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Affiliation(s)
- Nada Ezzeldin
- Chest Diseases, National Research Centre, Cairo, Egypt
| | - Dalia El-Lebedy
- Clinical Pathology department, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt
| | - Mirhane Hassan
- Clinical Pathology department, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt.
| | | | | | | | - Gehan Hamdy
- Chest Diseases, National Research Centre, Cairo, Egypt
| | - Asmaa Mahmoud Mohammed
- Department of Environmental and Occupational Medicine, National Research Centre, Cairo, Egypt
| | - Abeer Ramadan
- Molecular Genetics and Enzymology Department, Human Genetics and Genomics Research Institute, National Research Centre, Cairo, Egypt
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Garrido-Navas MC, García-Díaz A, Molina-Vallejo MP, González-Martínez C, Alcaide Lucena M, Cañas-García I, Bayarri C, Delgado JR, González E, Lorente JA, Serrano MJ. The Polemic Diagnostic Role of TP53 Mutations in Liquid Biopsies from Breast, Colon and Lung Cancers. Cancers (Basel) 2020; 12:E3343. [PMID: 33198130 PMCID: PMC7696715 DOI: 10.3390/cancers12113343] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/02/2020] [Accepted: 11/10/2020] [Indexed: 12/15/2022] Open
Abstract
Being minimally invasive and thus allowing repeated measures over time, liquid biopsies are taking over traditional solid biopsies in certain circumstances such as those for unreachable tumors, very early stages or treatment monitoring. However, regarding TP53 mutation status analysis, liquid biopsies have not yet substituted tissue samples, mainly due to the lack of concordance between the two types of biopsies. This needs to be examined in a study-dependent manner, taking into account the particular type of liquid biopsy analyzed, that is, circulating tumor cells (CTCs) or cell-free DNA (cfDNA), its involvement in the tumor biology and evolution and, finally, the technology used to analyze each biopsy type. Here, we review the main studies analyzing TP53 mutations in either CTCs or cfDNA in the three more prevalent solid tumors: breast, colon and lung cancers. We evaluate the correlation for mutation status between liquid biopsies and tumor tissue, suggesting possible sources of discrepancies, as well as evaluating the clinical utility of using liquid biopsies for the analysis of TP53 mutation status and the future actions that need to be undertaken to make liquid biopsy analysis a reality for the evaluation of TP53 mutations.
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Affiliation(s)
- M. Carmen Garrido-Navas
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
- Universidad Internacional de la Rioja, Avenida de la Paz, 137, 26006 Logroño, Spain
| | - Abel García-Díaz
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
- Departamento de Medicina, Facultad de Medicina, Universidad de Granada, 18016 Granada, Spain
| | - Maria Pilar Molina-Vallejo
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
| | - Coral González-Martínez
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
| | - Miriam Alcaide Lucena
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Clínico San Cecilio, 18016 Granada, Spain
| | - Inés Cañas-García
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Clínico San Cecilio, 18016 Granada, Spain
| | - Clara Bayarri
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
- Department of Thoracic Surgery, Virgen de las Nieves University Hospital, Av. de las Fuerzas Armadas, 2, 18014 Granada, Spain
| | - Juan Ramón Delgado
- Bio-Health Research Institute (Instituto de Investigación Biosanitaria ibs. GRANADA), Complejo Hospitalario Universitario Granada (CHUG), University of Granada, 18012 Granada, Spain; (J.R.D.); (E.G.)
| | - Encarna González
- Bio-Health Research Institute (Instituto de Investigación Biosanitaria ibs. GRANADA), Complejo Hospitalario Universitario Granada (CHUG), University of Granada, 18012 Granada, Spain; (J.R.D.); (E.G.)
| | - Jose Antonio Lorente
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
- Laboratory of Genetic Identification, Department of Legal Medicine, University of Granada, Av. de la Investigación, 11, 18071 Granada, Spain
| | - M. Jose Serrano
- GENYO Centre for Genomics and Oncological Research, formed by Pfizer, the University of Granada and the Andalusian Regional Government, PTS Granada, Liquid Biopsy and Cancer Interception Group, Av. de la Ilustración, 114, 18016 Granada, Spain; (A.G.-D.); (M.P.M.-V.); (C.G.-M.); (M.A.L.); (I.C.-G.); (C.B.); (J.A.L.)
- Bio-Health Research Institute (Instituto de Investigación Biosanitaria ibs. GRANADA), Complejo Hospitalario Universitario Granada (CHUG), University of Granada, 18012 Granada, Spain; (J.R.D.); (E.G.)
- Department of Pathological Anatomy, Faculty of Medicine, Campus de Ciencias de la Salud, University of Granada, 18016 Granada, Spain
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Hamano I, Hatakeyama S, Hamaya T, Togashi K, Okamoto T, Yamamoto H, Yoneyama T, Yoneyama T, Hashimoto Y, Ohyama C. Utility of plasma cell-free DNA in metastatic castration-resistant prostate cancer. IJU Case Rep 2020; 3:141-144. [PMID: 33392474 PMCID: PMC7770589 DOI: 10.1002/iju5.12172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/09/2020] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION Cell-free DNA is suggested as a prognostic biomarker in metastatic castration-resistant prostate cancer. However, it remains unknown which parameter of cell-free DNA is correlated with the progression and prognosis of metastatic castration-resistant prostate cancer. CASE PRESENTATION A 75-year-old man with newly diagnosed prostate cancer (serum prostate-specific antigen 4891 ng/mL, Gleason score 4 + 5 = 9, cT3bN1M1) was referred to our department. He first received sequential hormonal therapies and was consequently diagnosed metastatic castration-resistant prostate cancer 64 months after initial treatment. He underwent serial examinations of plasma cell-free DNA, including concentration, androgen receptor amplification, TP53 point mutation, and PTEN loss. Only the cell-free DNA concentration increased along with disease progression and declined after the administration of abiraterone and enzalutamide. CONCLUSION This case presented that cell-free DNA concentration was possibly correlated with response to castration-resistant prostate cancer treatment and disease progression. Cell-free DNA concentration was proposed as a potential prognostic biomarker of metastatic castration-resistant prostate cancer.
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Affiliation(s)
- Itsuto Hamano
- Department ofUrologyHirosaki University Graduate School of MedicineHirosakiJapan
| | - Shingo Hatakeyama
- Department ofAdvanced Blood Purification TherapyHirosaki University Graduate School of MedicineHirosakiJapan
| | - Tomoko Hamaya
- Department ofUrologyHirosaki University Graduate School of MedicineHirosakiJapan
| | - Kyo Togashi
- Department ofUrologyHirosaki University Graduate School of MedicineHirosakiJapan
| | - Teppei Okamoto
- Department ofUrologyHirosaki University Graduate School of MedicineHirosakiJapan
| | - Hayato Yamamoto
- Department ofUrologyHirosaki University Graduate School of MedicineHirosakiJapan
| | - Tohru Yoneyama
- Department ofAdvanced Transplant and Regenerative MedicineHirosaki University Graduate School of MedicineHirosakiJapan
| | - Takahiro Yoneyama
- Department ofAdvanced Transplant and Regenerative MedicineHirosaki University Graduate School of MedicineHirosakiJapan
| | - Yasuhiro Hashimoto
- Department ofUrologyHirosaki University Graduate School of MedicineHirosakiJapan
| | - Chikara Ohyama
- Department ofUrologyHirosaki University Graduate School of MedicineHirosakiJapan
- Department ofAdvanced Blood Purification TherapyHirosaki University Graduate School of MedicineHirosakiJapan
- Department ofAdvanced Transplant and Regenerative MedicineHirosaki University Graduate School of MedicineHirosakiJapan
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Fettke H, Kwan EM, Azad AA. Cell-free DNA in cancer: current insights. Cell Oncol (Dordr) 2018; 42:13-28. [PMID: 30367445 DOI: 10.1007/s13402-018-0413-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The field of liquid biopsies in oncology is rapidly expanding, with the application of cell-free circulating tumour DNA (ctDNA) showing promise in this era of precision medicine. Compared with traditional clinical and radiographic tumour monitoring methods, the analysis of ctDNA provides a minimally-invasive and technically feasible approach to assess temporal and spatial molecular evolutions of the tumour landscape. The constantly advancing technological platforms available for ctDNA extraction and analysis allow greater analytical sensitivities than ever before. The potential translational impact of ctDNA as a blood-based biomarker for the identification, characterization and monitoring of cancer has been demonstrated in numerous proof-of-concept studies, with ctDNA analysis beginning to be applied clinically across multiple facets of oncology. CONCLUSIONS In this review we discuss the biology, recent advancements, technical considerations and clinical implications of ctDNA in the context of cancer, and highlight important challenges and future directions for the integration of ctDNA into standardised patient care.
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Affiliation(s)
- Heidi Fettke
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia.
| | - Edmond M Kwan
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia.,Department of Medical Oncology, Monash Health, Melbourne, Australia
| | - Arun A Azad
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia.,Department of Medical Oncology, Monash Health, Melbourne, Australia
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Zein-El-Dine S, Bou Akl I, Mohamad M, Chmaisse A, Chahwan S, Asmar K, El-Merhi F, Saade C. Split-bolus contrast injection protocol enhances the visualization of the thoracic vasculature and reduced radiation dose during chest CT. Br J Radiol 2018; 91:20180509. [PMID: 30160182 DOI: 10.1259/bjr.20180509] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE To investigate the visualization of mediastinal lymph nodes during thoracic CT employing a multiphasic contrast media (CM) protocol. METHODS Institutional review board approved retrospective study consisting of 300 patients with known chest malignancy. Patients were allocated to one of two CM protocols: Protocol A, consisted of dual bolus (Phase 1:100 ml CM followed by 100 ml saline chaser) i.v. injected at 2.5 ml s-1; Protocol B employed 100 ml of CM using a multiphasic injection protocol (Phase 1 and 2:60 ml contrast and saline, followed by Phase 3 and 4:40 ml contrast and saline injected at 2.5 ml s-1) with a fixed scan delay of 70 s for each acquisition. Attenuation profiles of the thoracic arteries and veins were calculated as well as the arterio-venous contrast ratios (AVCR). Receiver operating characteristic (ROC), visual grading characteristic (VGC), and Cohen's kappa analysis were assessed. RESULTS Arterial opacification was up to 24% (p < 0.032) higher in protocol B than A, whereas, in the veins it was significantly lower in protocol B than A, with a maximum reduction of up to 84% (p < 0.0001). There was no statistical significance between the central and peripheral pulmonary arteries [>263 Hounsfield units (HU)] in each protocol. Protocol B, demonstrated significant improvement in AVCR at various anatomical sites (p < 0.002). Radiation dose was significantly reduced in protocol B compared to A (p < 0.004). Both ROC and VGC demonstrated significantly higher Az score for protocol B compared to A (p < 0.0001) with an increased inter reader agreement from poor to excellent. CONCLUSION Employing a multiphasic CM protocol significantly improves opacification of the thoracic vasculature and visualization of mediastinal lymph nodes during thoracic CT. ADVANCES IN KNOWLEDGE Uniform opacification between thoracic arteries and veins increases the delineation between vasculature and lymph nodes, reduces radiation dose when employing a multiphase contrast media injection protocol.
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Affiliation(s)
- Salah Zein-El-Dine
- 1 Respiratory Medicine Department, American University of Beirut Medical Center , Beirut , Lebanon
| | - Imad Bou Akl
- 1 Respiratory Medicine Department, American University of Beirut Medical Center , Beirut , Lebanon
| | - Maha Mohamad
- 2 Diagnostic Radiology Department, University of Beirut Medical Center , Beirut , Lebanon
| | - Ahmad Chmaisse
- 2 Diagnostic Radiology Department, University of Beirut Medical Center , Beirut , Lebanon
| | - Stephanie Chahwan
- 2 Diagnostic Radiology Department, University of Beirut Medical Center , Beirut , Lebanon
| | - Karl Asmar
- 2 Diagnostic Radiology Department, University of Beirut Medical Center , Beirut , Lebanon
| | - Fadi El-Merhi
- 2 Diagnostic Radiology Department, University of Beirut Medical Center , Beirut , Lebanon
| | - Charbel Saade
- 3 Faculty of Health Sciences, Medical Imaging Sciences, American University of Beirut , Beirut , Lebanon
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Diagnostic role of circulating extracellular matrix-related proteins in non-small cell lung cancer. BMC Cancer 2018; 18:899. [PMID: 30227835 PMCID: PMC6145327 DOI: 10.1186/s12885-018-4772-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 08/23/2018] [Indexed: 12/16/2022] Open
Abstract
Background Interactions between cancer cells and the surrounding microenvironment are crucial determinants of cancer progression. During this process, bi-directional communication among tumor cells and cancer associated fibroblasts (CAF) regulate extracellular matrix (ECM) deposition and remodeling. As a result of this dynamic process, soluble ECM proteins can be released into the bloodstream and may represent novel circulating biomarkers useful for cancer diagnosis. The aim of the present study was to measure the levels of three circulating ECM related proteins (COL11A1, COL10A1 and SPARC) in plasma samples of lung cancer patients and in healthy heavy-smokers controls and test whether such measurements have diagnostic or prognostic value. Methods Gene expression profiling of lung fibroblasts isolated from paired normal and cancer tissue of NSCLC patients was performed by gene expression microarrays. The prioritization of the candidates for the study of circulating proteins in plasma was based on the most differentially expressed genes in cancer associated fibroblasts. Soluble ECM proteins were assessed by western blot in the conditioned medium of lung fibroblasts and by ELISA assays in plasma samples. Results Plasma samples from lung cancer patients and healthy heavy-smokers controls were tested for levels of COL11A1 and COL10A1 (n = 57 each) and SPARC (n = 90 each). Higher plasma levels of COL10A1 were detected in patients (p ≤ 0.001), a difference that was driven specifically by females (p < 0.001). No difference in COL11A1 levels between patients and controls was found. SPARC levels were also higher in plasma patients than controls (p < 0.001) with good performance in discriminating the two groups (AUC = 0.744). No significant association was observed between plasma proteins levels and clinicopathological features or survival. Conclusion Soluble factors related to proficient tumor-stroma cross-talk are detectable in plasma of primary lung cancer patients and may represent a valuable complementary diagnostic tool to discriminate lung cancer patients from healthy heavy-smokers individuals as shown for the SPARC protein. Electronic supplementary material The online version of this article (10.1186/s12885-018-4772-0) contains supplementary material, which is available to authorized users.
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Soliman SES, Alhanafy AM, Habib MSED, Hagag M, Ibrahem RAL. Serum circulating cell free DNA as potential diagnostic and prognostic biomarker in non small cell lung cancer. Biochem Biophys Rep 2018; 15:45-51. [PMID: 29984326 PMCID: PMC6031238 DOI: 10.1016/j.bbrep.2018.06.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/04/2018] [Accepted: 06/04/2018] [Indexed: 12/18/2022] Open
Abstract
Background Non-small cell lung cancer (NSCLC) is leading cause of cancer related death and the survival rate for patients with NSCLC remain poor so early diagnosis of NSCLC represents the best opportunity for cure. Cell-free DNA (cf-DNA) is extracellular nucleic acids found in cell-free plasma/serum of humans, given the recent approval of a liquid biopsy in lung cancer, the use of circulating tumor DNA as a novel non-invasive diagnostic and prognostic biomarker is promising. Objectives Studying whether the concentrations of circulating Cell Free DNA in serum can be used as a diagnostic and prognostic biomarker for NSCLC patients. Method This study was carried out on 140 subjects included 60 patients with non small cell lung cancer,40 patients with Chronic Obstructive Pulmonary Disease (COPD) and 40 healthy controls. Quantitative analysis of serum circulating cf-DNA was done b y AlU-based quantitative real time PCR. Serum level of CEA was measured by ELISA. Results NSCLC patients demonstrated significantly higher values of each of ALU 215, ALU 247, and DNA integrity than both COPD patients and controls. On ROC curve analysis, the total accuracy of ALU 247, ALU 115, DNA integrity (92.1%, 83.6%, 56.4%) at cutoff points (325, 565 & 0.48) respectively. On combining both DNA integrity and CEA, improved sensitivity to 93.3% was noted. For NSCLC patients, ALU 115 & ALU 247 increased significantly with more advanced stage and highest level was noticed in metastatic patients. Regarding survival there was better overall survival among patients with low DNA integrity. Conclusion Serum cf-DNA concentrations and integrity index may be valuable tool in early diagnosis of NSCLC and prediction of prognosis of those patients.
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Affiliation(s)
- Shimaa El-Shafey Soliman
- Department of Medical Biochemistry &Molecular biology, Faculty of Medicine, Menoufia University, Shebin El-Kom, Menoufia Postal Code: 32511, Egypt
| | - Alshimaa Mahmoud Alhanafy
- Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Menoufia University, Egypt
| | - Mona Salah El-Din Habib
- Department of Medical Biochemistry &Molecular biology, Faculty of Medicine, Menoufia University, Shebin El-Kom, Menoufia Postal Code: 32511, Egypt
| | - Mohamed Hagag
- Department of Cardiothoracic Surgery, Faculty of Medicine, Menoufia University, Egypt
| | - Reda Abdel Latif Ibrahem
- Department of Public Health and Community Medicine, Faculty of Medicine, Menoufia University, Egypt
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