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Ebert K, Haffner I, Zwingenberger G, Keller S, Raimúndez E, Geffers R, Wirtz R, Barbaria E, Hollerieth V, Arnold R, Walch A, Hasenauer J, Maier D, Lordick F, Luber B. Combining gene expression analysis of gastric cancer cell lines and tumor specimens to identify biomarkers for anti-HER therapies-the role of HAS2, SHB and HBEGF. BMC Cancer 2022; 22:254. [PMID: 35264144 PMCID: PMC8908634 DOI: 10.1186/s12885-022-09335-4] [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: 08/14/2021] [Accepted: 02/24/2022] [Indexed: 02/22/2023] Open
Abstract
Background The standard treatment for patients with advanced HER2-positive gastric cancer is a combination of the antibody trastuzumab and platin-fluoropyrimidine chemotherapy. As some patients do not respond to trastuzumab therapy or develop resistance during treatment, the search for alternative treatment options and biomarkers to predict therapy response is the focus of research. We compared the efficacy of trastuzumab and other HER-targeting drugs such as cetuximab and afatinib. We also hypothesized that treatment-dependent regulation of a gene indicates its importance in response and that it can therefore be used as a biomarker for patient stratification. Methods A selection of gastric cancer cell lines (Hs746T, MKN1, MKN7 and NCI-N87) was treated with EGF, cetuximab, trastuzumab or afatinib for a period of 4 or 24 h. The effects of treatment on gene expression were measured by RNA sequencing and the resulting biomarker candidates were tested in an available cohort of gastric cancer patients from the VARIANZ trial or functionally analyzed in vitro. Results After treatment of the cell lines with afatinib, the highest number of regulated genes was observed, followed by cetuximab and trastuzumab. Although trastuzumab showed only relatively small effects on gene expression, BMF, HAS2 and SHB could be identified as candidate biomarkers for response to trastuzumab. Subsequent studies confirmed HAS2 and SHB as potential predictive markers for response to trastuzumab therapy in clinical samples from the VARIANZ trial. AREG, EREG and HBEGF were identified as candidate biomarkers for treatment with afatinib and cetuximab. Functional analysis confirmed that HBEGF is a resistance factor for cetuximab. Conclusion By confirming HAS2, SHB and HBEGF as biomarkers for anti-HER therapies, we provide evidence that the regulation of gene expression after treatment can be used for biomarker discovery. Trial registration. Clinical specimens of the VARIANZ study (NCT02305043) were used to test biomarker candidates. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09335-4.
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Affiliation(s)
- Karolin Ebert
- Technische Universität München, Fakultät für Medizin, Klinikum rechts der Isar, Institut für Allgemeine Pathologie und Pathologische Anatomie, 81675, München, Germany
| | - Ivonne Haffner
- University Cancer Center Leipzig (UCCL), University Leipzig Medical Center, 04103, Leipzig, Germany
| | - Gwen Zwingenberger
- Technische Universität München, Fakultät für Medizin, Klinikum rechts der Isar, Institut für Allgemeine Pathologie und Pathologische Anatomie, 81675, München, Germany
| | - Simone Keller
- Technische Universität München, Fakultät für Medizin, Klinikum rechts der Isar, Institut für Allgemeine Pathologie und Pathologische Anatomie, 81675, München, Germany
| | - Elba Raimúndez
- Faculty of Mathematics and Natural Sciences, University of Bonn, 53113, Bonn, Germany.,Center for Mathematics, Technische Universität München, 85748, Garching, Germany
| | - Robert Geffers
- Helmholtz Zentrum für Infektionsforschung, 38124, Braunschweig, Germany
| | - Ralph Wirtz
- STRATIFYER Molecular Pathology GmbH, 50935, Köln, Germany
| | - Elena Barbaria
- Technische Universität München, Fakultät für Medizin, Klinikum rechts der Isar, Institut für Allgemeine Pathologie und Pathologische Anatomie, 81675, München, Germany
| | - Vanessa Hollerieth
- Technische Universität München, Fakultät für Medizin, Klinikum rechts der Isar, Institut für Allgemeine Pathologie und Pathologische Anatomie, 81675, München, Germany
| | - Rouven Arnold
- Technische Universität München, Fakultät für Medizin, Klinikum rechts der Isar, Institut für Allgemeine Pathologie und Pathologische Anatomie, 81675, München, Germany
| | - Axel Walch
- Helmholtz Zentrum München-German Research Center for Environmental Health, Research Unit Analytical Pathology, 85764, Neuherberg, Germany
| | - Jan Hasenauer
- Faculty of Mathematics and Natural Sciences, University of Bonn, 53113, Bonn, Germany.,Center for Mathematics, Technische Universität München, 85748, Garching, Germany.,Helmholtz Zentrum München-German Research Center for Environmental Health, Institute of Computational Biology, 85764, Neuherberg, Germany
| | | | - Florian Lordick
- University Cancer Center Leipzig (UCCL), University Leipzig Medical Center, 04103, Leipzig, Germany
| | - Birgit Luber
- Technische Universität München, Fakultät für Medizin, Klinikum rechts der Isar, Institut für Allgemeine Pathologie und Pathologische Anatomie, 81675, München, Germany.
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Kim S, Yang L, Kim S, Lee RG, Graham MJ, Berliner JA, Lusis AJ, Cai L, Temel RE, Rateri DL, Lee S. Targeting hepatic heparin-binding EGF-like growth factor (HB-EGF) induces anti-hyperlipidemia leading to reduction of angiotensin II-induced aneurysm development. PLoS One 2017; 12:e0182566. [PMID: 28792970 PMCID: PMC5549937 DOI: 10.1371/journal.pone.0182566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/20/2017] [Indexed: 01/02/2023] Open
Abstract
Objective The upregulated expression of heparin binding EGF-like growth factor (HB-EGF) in the vessel and circulation is associated with risk of cardiovascular disease. In this study, we tested the effects of HB-EGF targeting using HB-EGF-specific antisense oligonucleotide (ASO) on the development of aortic aneurysm in a mouse aneurysm model. Approach and results Low-density lipoprotein receptor (LDLR) deficient mice (male, 16 weeks of age) were injected with control and HB-EGF ASOs for 10 weeks. To induce aneurysm, the mice were fed a high fat diet (22% fat, 0.2% cholesterol; w/w) at 5 week point of ASO administration and infused with angiotensin II (AngII, 1,000ng/kg/min) for the last 4 weeks of ASO administration. We confirmed that the HB-EGF ASO administration significantly downregulated HB-EGF expression in multiple tissues including the liver. Importantly, the HB-EGF ASO administration significantly suppressed development of aortic aneurysms including thoracic and abdominal types. Interestingly, the HB-EGF ASO administration induced a remarkable anti-hyperlipidemic effect by suppressing very low density lipoprotein (VLDL) level in the blood. Mechanistically, the HB-EGF targeting suppressed hepatic VLDL secretion rate without changing heparin-releasable plasma triglyceride (TG) hydrolytic activity or fecal neutral cholesterol excretion rate. Conclusion This result suggested that the HB-EGF targeting induced protection against aneurysm development through anti-hyperlipidemic effects. Suppression of hepatic VLDL production process appears to be a key mechanism for the anti-hyperlipidemic effects by the HB-EGF targeting.
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Affiliation(s)
- Seonwook Kim
- Saha Cardiovascular Research Center at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
| | - Lihua Yang
- Saha Cardiovascular Research Center at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
| | - Seongu Kim
- Saha Cardiovascular Research Center at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
| | - Richard G. Lee
- Cardiovascular Antisense Drug Discovery Group at the Ionis Pharmaceuticals, Inc., Carlsbad, California, United States of America
| | - Mark J. Graham
- Cardiovascular Antisense Drug Discovery Group at the Ionis Pharmaceuticals, Inc., Carlsbad, California, United States of America
| | - Judith A. Berliner
- Department of Medicine-Cardiology, University of California-Los Angeles School of Medicine, Los Angeles, California, United States of America
| | - Aldons J. Lusis
- Department of Medicine-Cardiology, University of California-Los Angeles School of Medicine, Los Angeles, California, United States of America
| | - Lei Cai
- Saha Cardiovascular Research Center at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
| | - Ryan E. Temel
- Saha Cardiovascular Research Center at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
- Department of Pharmacology & Nutritional Sciences at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
| | - Debra L. Rateri
- Saha Cardiovascular Research Center at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
| | - Sangderk Lee
- Saha Cardiovascular Research Center at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
- Department of Pharmacology & Nutritional Sciences at the University of Kentucky College of Medicine, Lexington, Kentucky, United States of America
- * E-mail:
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Cancer cell spheroids for screening of chemotherapeutics and drug-delivery systems. Ther Deliv 2016; 6:509-20. [PMID: 25996047 DOI: 10.4155/tde.15.1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Over the last few decades, the most popular platform to perform high-throughput screening for viable anti-neoplastic compounds has been monolayer cell culture. However, cells in monolayer culture lose many of their in vivo characteristics. As a result, this platform provides a limited predictive value in determining the clinical outcome of the compounds of interest. Using a technique known as 3D spheroid culture, may be the answer to this conundrum. Spheroids have been shown to mimic the tissue-like properties of tumors necessary for the proper evaluation of compounds. In this review, production of cancer cell spheroids, utilization of these spheroids in understanding various therapeutic mechanisms and the potential for their use in high-throughput screening of drugs and drug-delivery systems are discussed in detail.
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Hu Y, Lin X, Wang P, Xue YX, Li Z, Liu LB, Yu B, Feng TD, Liu YH. CRM197 in Combination With shRNA Interference of VCAM-1 Displays Enhanced Inhibitory Effects on Human Glioblastoma Cells. J Cell Physiol 2015; 230:1713-28. [PMID: 25201410 DOI: 10.1002/jcp.24798] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/02/2014] [Indexed: 01/01/2023]
Abstract
CRM197 is a naturally nontoxic diphtheria toxin mutant that binds and inhibits heparin-binding epidermal growth factor-like growth factor. CRM197 serves as carrier protein for vaccine and other therapeutic agents. CRM197 also inhibits the growth, migration, invasion, and induces apoptosis in various tumors. Vascular cell adhesion molecule-1 (VCAM-1) is an important cell surface adhesion molecule associated with malignancy of gliomas. In this work, we aimed to investigate the role and mechanism of CRM197 combined with shRNA interference of VCAM-1 (shRNA-VCAM-1) on the migration, invasion, and apoptosis of glioblastoma cells. U87 and U251 human glioblastoma cells were treated with CRM197 (10 µg/ml) and shRNA interfering technology was employed to silence VCAM-1 expression. Cell viability, migration, invasiveness, and apoptosis were assessed with CCK8, Transwell and Annexin V-PE/7-AAD staining. Activation of cleaved caspase-3, 8, and 9, activity of matrix metalloproteinase-2/9 (MMP-2/9), and expression of phosphorylated Akt (p-Akt) were also checked. Results showed that CRM197 and shRNA-VCAM-1 not only significantly inhibited the cell proliferation, migration, invasion, but also promoted the apoptosis of U87 and U251 cells. Combined treatment of both displayed enhanced inhibitory effects on the malignant biological behavior of glioma cells. The activation of cleaved caspase-3, 8, 9 was promoted, activity of MMP-2 and MMP-9 and expression of p-Akt were inhibited significantly by the treatment of CRM197 and shRNA-VCAM-1 alone or in combination, indicating that the combination of CRM197 with shRNA-VCAM-1 additively inhibited the malignant behavior of human glioblastoma cells via activating caspase-3, 8, 9 as well as inhibiting MMP-2, MMP-9, and Akt pathway.
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Affiliation(s)
- Yi Hu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, P. R. China
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Labyntsev AI, Korotkevich NV, Manoĭlov KI, Kaberniuk AA, Kolibo DV, Komisarenko SV. [Recombinant fluorescent models for studying of diphtheria toxin]. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2015; 40:433-42. [PMID: 25898753 DOI: 10.1134/s1068162014040086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Diphtheria toxin is the main pathogenicity factor of causative agent of diphtheria Corynebacterium diphtheriae. Due to the small molecule size, it is of considerable interestfor the development of synthetic protein molecules with transporting function, e.g. immunotoxins. Expression and characterization of nontoxic recombinant fluorescent derivates of diphtheria toxin and its nontoxic mutant CRM 197 were described in this article. Obtained proteins may be applied in studies of receptor-binding and transporting functions of the toxin in cells, for determination of toxin receptor proHB-EGF expression level, immunization and antibody generation against the toxin and in development of diagnostic test-systems, detection of diphtheria toxin and antitoxic antibodies.
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Sun M, Ju H, Zhou Z, Zhu R. Pilot genome-wide study of tandem 3' UTRs in esophageal cancer using high-throughput sequencing. Mol Med Rep 2014; 9:1597-605. [PMID: 24604236 PMCID: PMC4020480 DOI: 10.3892/mmr.2014.2003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 02/11/2014] [Indexed: 01/28/2023] Open
Abstract
Regulatory regions within the 3' untranslated region (UTR) influence polyadenylation (polyA), translation efficiency, localization and stability of mRNA. Alternative polyA (APA) has been considered to have a key role in gene regulation since 2008. Esophageal carcinoma is the eighth most common type of cancer worldwide. The association between polyA and disease highlights the requirement for comprehensive characterization of genome-wide polyA profiles. In the present study, global polyA profiles were established using the sequencing APA sites (SAPAS) method in order to elucidate the interrelation between 3' UTR length and the development of esophageal cancer. PolyA profiles were analyzed in squamous cell carcinoma, with ~903 genes identified to have shortened 3' UTRs and 917 genes identified to use distal polyA sites. The genes with shortened 3' UTRs were primarily associated with adherens junctions and the cell cycle. Four differentially expressed genes were also found, among which three genes were observed to be upregulated in cancerous tissue and involved in the positive regulation of cell motion, migration and locomotion. One gene was found to be downregulated in cancerous tissue, and associated with oxidative phosphorylation. These findings suggest that esophagitis may have a key role in the development of esophageal carcinoma. Furthermore, the genes with tandem 3' UTRs and differential expression identified in the present study may have the potential to be used as biomarkers for the diagnosis and prognosis of esophageal cancer.
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Affiliation(s)
- Mingzhong Sun
- Department of Clinical Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, Yancheng, Jiangsu 224001, P.R. China
| | - Huixiang Ju
- Department of Clinical Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, Yancheng, Jiangsu 224001, P.R. China
| | - Zhongwei Zhou
- Department of Clinical Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, Yancheng, Jiangsu 224001, P.R. China
| | - Rong Zhu
- Department of Clinical Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, Yancheng, Jiangsu 224001, P.R. China
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