Gastric Cancer Pre-Stage Detection and Early Diagnosis of Gastritis Using Serum Protein Signatures

Background: A gastric cancer (GC) diagnosis relies on histopathology. Endoscopy rates are increasing. <i>Helicobacter pylori</i> infection is a major GC risk factor. In an effort to elucidate abundant blood biomarkers, and potentially reduce the number of diagnostic surgical intervention...

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Main Authors: Shahid Aziz, Faisal Rasheed, Rabaab Zahra, Simone König
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/27/9/2857
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author Shahid Aziz
Faisal Rasheed
Rabaab Zahra
Simone König
author_facet Shahid Aziz
Faisal Rasheed
Rabaab Zahra
Simone König
author_sort Shahid Aziz
collection DOAJ
description Background: A gastric cancer (GC) diagnosis relies on histopathology. Endoscopy rates are increasing. <i>Helicobacter pylori</i> infection is a major GC risk factor. In an effort to elucidate abundant blood biomarkers, and potentially reduce the number of diagnostic surgical interventions, we investigated sera and biopsies from a cohort of 219 <i>H. pylori</i> positive and negative patients diagnosed with GC, gastritis, and ulcers. This allowed the comparative investigation of the different gastroduodenal diseases, and the exclusion of protein changes resulting from bacterial infection or inflammation of the gastric mucosa when searching for GC-dependent proteins. Methods: High-definition mass spectrometry-based expression analysis of tryptically digested proteins was performed, followed by multivariate statistical and network analyses for the different disease groups, with respect to <i>H. pylori</i> infection status. Significantly regulated proteins differing more than two-fold between groups were shortlisted, and their role in gastritis and GC discussed. Results: We present data of comparative protein analyses of biopsies and sera from patients suffering from mild to advanced gastritis, ulcers, and early to advanced GC, in conjunction with a wealth of metadata, clinical information, histopathological evaluation, and <i>H. pylori</i> infection status. We used samples from pre-malignant stages to extract prospective serum markers for early-stage GC, and present a 29-protein marker panel containing, amongst others, integrin β-6 and glutathione peroxidase. Furthermore, ten serum markers specific for advanced GC, independent of <i>H. pylori</i> infection, are provided. They include CRP, protein S100A9, and kallistatin. The majority of these proteins were previously discussed in the context of cancer or GC. In addition, we detected hypoalbuminemia and increased fibrinogen serum levels in gastritis. Conclusion: Two protein panels were suggested for the development of multiplex tests for GC serum diagnostics. For most of the elements contained in these panels, individual commercial tests are available. Thus, we envision the design of multi-protein assays, incorporating several to all of the panel members, in order to gain a level of specificity that cannot be achieved by testing a single protein alone. As their development and validation will take time, gastritis diagnosis based on the fibrinogen to albumin serum ratio may be a quick way forward. Its determination at the primary/secondary care level for early diagnosis could significantly reduce the number of referrals to endoscopy. Preventive measures are in high demand. The protein marker panels presented in this work will contribute to improved GC diagnostics, once they have been transferred from a research result to a practical tool.
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spelling doaj.art-c8eede9928b349d58e48b3bbe1c4f23b2023-11-23T08:50:43ZengMDPI AGMolecules1420-30492022-04-01279285710.3390/molecules27092857Gastric Cancer Pre-Stage Detection and Early Diagnosis of Gastritis Using Serum Protein SignaturesShahid Aziz0Faisal Rasheed1Rabaab Zahra2Simone König3BreathMAT Lab, Pakistan Institute of Nuclear Science and Technology (PINSTEC), Islamabad 44000, PakistanBreathMAT Lab, Pakistan Institute of Nuclear Science and Technology (PINSTEC), Islamabad 44000, PakistanDepartment of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, PakistanIZKF Core Unit Proteomics, University of Münster, 48149 Münster, GermanyBackground: A gastric cancer (GC) diagnosis relies on histopathology. Endoscopy rates are increasing. <i>Helicobacter pylori</i> infection is a major GC risk factor. In an effort to elucidate abundant blood biomarkers, and potentially reduce the number of diagnostic surgical interventions, we investigated sera and biopsies from a cohort of 219 <i>H. pylori</i> positive and negative patients diagnosed with GC, gastritis, and ulcers. This allowed the comparative investigation of the different gastroduodenal diseases, and the exclusion of protein changes resulting from bacterial infection or inflammation of the gastric mucosa when searching for GC-dependent proteins. Methods: High-definition mass spectrometry-based expression analysis of tryptically digested proteins was performed, followed by multivariate statistical and network analyses for the different disease groups, with respect to <i>H. pylori</i> infection status. Significantly regulated proteins differing more than two-fold between groups were shortlisted, and their role in gastritis and GC discussed. Results: We present data of comparative protein analyses of biopsies and sera from patients suffering from mild to advanced gastritis, ulcers, and early to advanced GC, in conjunction with a wealth of metadata, clinical information, histopathological evaluation, and <i>H. pylori</i> infection status. We used samples from pre-malignant stages to extract prospective serum markers for early-stage GC, and present a 29-protein marker panel containing, amongst others, integrin β-6 and glutathione peroxidase. Furthermore, ten serum markers specific for advanced GC, independent of <i>H. pylori</i> infection, are provided. They include CRP, protein S100A9, and kallistatin. The majority of these proteins were previously discussed in the context of cancer or GC. In addition, we detected hypoalbuminemia and increased fibrinogen serum levels in gastritis. Conclusion: Two protein panels were suggested for the development of multiplex tests for GC serum diagnostics. For most of the elements contained in these panels, individual commercial tests are available. Thus, we envision the design of multi-protein assays, incorporating several to all of the panel members, in order to gain a level of specificity that cannot be achieved by testing a single protein alone. As their development and validation will take time, gastritis diagnosis based on the fibrinogen to albumin serum ratio may be a quick way forward. Its determination at the primary/secondary care level for early diagnosis could significantly reduce the number of referrals to endoscopy. Preventive measures are in high demand. The protein marker panels presented in this work will contribute to improved GC diagnostics, once they have been transferred from a research result to a practical tool.https://www.mdpi.com/1420-3049/27/9/2857<i>Helicobacter pylori</i>gastric cancerulcergastritisproteomics
spellingShingle Shahid Aziz
Faisal Rasheed
Rabaab Zahra
Simone König
Gastric Cancer Pre-Stage Detection and Early Diagnosis of Gastritis Using Serum Protein Signatures
Molecules
<i>Helicobacter pylori</i>
gastric cancer
ulcer
gastritis
proteomics
title Gastric Cancer Pre-Stage Detection and Early Diagnosis of Gastritis Using Serum Protein Signatures
title_full Gastric Cancer Pre-Stage Detection and Early Diagnosis of Gastritis Using Serum Protein Signatures
title_fullStr Gastric Cancer Pre-Stage Detection and Early Diagnosis of Gastritis Using Serum Protein Signatures
title_full_unstemmed Gastric Cancer Pre-Stage Detection and Early Diagnosis of Gastritis Using Serum Protein Signatures
title_short Gastric Cancer Pre-Stage Detection and Early Diagnosis of Gastritis Using Serum Protein Signatures
title_sort gastric cancer pre stage detection and early diagnosis of gastritis using serum protein signatures
topic <i>Helicobacter pylori</i>
gastric cancer
ulcer
gastritis
proteomics
url https://www.mdpi.com/1420-3049/27/9/2857
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