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Elnaggar M, Chaisuparat R, Ghita I, Bentzen SM, Dyalram D, Ord RA, Lubek JE, Younis RH. Immuno-oncologic signature of malignant transformation in oral squamous cell carcinoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2023; 136:612-622. [PMID: 37739913 DOI: 10.1016/j.oooo.2023.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 04/25/2023] [Accepted: 07/02/2023] [Indexed: 09/24/2023]
Abstract
OBJECTIVE The purpose of this study is to identify the immuno-oncologic (IO) signature at the surgical tumor margin (TM) of oral squamous cell carcinoma (OSCC) that is involved in the process of malignant transformation. STUDY DESIGN Under institutional review board approval, TM of 73 OSCC were investigated using immunohistochemistry for the immune biomarker, programmed death ligand-1 (PD-L1). NanoString 770 IO-focused gene set was analyzed in 5 pairs of TM and invasive tumor (T). PD-L1 regulation in response to interferon-gamma (IFN-γ) was investigated in an oral potentially malignant cell line (OPMC). RESULTS Programmed death ligand-1 expression in the epithelial margin directly correlated with its expression in the underlying immune cells (P = .0082). Differential gene expression showed downregulation of PD-L1 and IFN-γ 6 gene signature in the TM relative to T pair.CD8 and macrophages were higher in TM. CNTFR, LYZ, C7, RORC, and FGF13 downregulation in T relative to TM. TDO2, ADAM12, MMP1, LAMC2, MB21D1, TYMP, OASL, COL5A1, exhausted_CD8, Tregs,and NK_CD56dim were upregulated in T relative to TM. Finally, IFN-γ induced upregulation of PD-L1 in the OPMC. CONCLUSIONS Our work suggests a role for IFN-γ in PD-L1 upregulation in OPMC and presents novel IO transcriptional signatures for frankly invasive OSCC relative to TM.
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Affiliation(s)
- Manar Elnaggar
- Department of Oncology and Diagnostic Sciences, Division of Oral and Maxillofacial Pathology, University of Maryland School of Dentistry, Baltimore, MD, USA; Department of Oral Pathology, Faculty of Dentistry, Alexandria University, Alexandria, Egypt; Department of Oral Pathology, Faculty of Dentistry, Arab Academy for Science and Technology, El Alamein, Egypt
| | - Risa Chaisuparat
- Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Ioana Ghita
- Department of Oncology and Diagnostic Sciences, Division of Oral and Maxillofacial Pathology, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Soren M Bentzen
- Division of Biostatistics and Bioinformatics, Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA; Biostatistics Core, Institute of Clinical and Translational Research, University of Maryland, Baltimore, MD, USA; Biostatistics Division, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA
| | - Donita Dyalram
- Department of Oral and Maxillofacial Surgery, University of Maryland School of Dentistry, Baltimore, MD, USA; Head and Neck Surgery Department of Oral and Maxillofacial Surgery, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA
| | - Robert A Ord
- Department of Oral and Maxillofacial Surgery, University of Maryland School of Dentistry, Baltimore, MD, USA; Head and Neck Surgery Department of Oral and Maxillofacial Surgery, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA
| | - Joshua E Lubek
- Department of Oral and Maxillofacial Surgery, University of Maryland School of Dentistry, Baltimore, MD, USA; Head and Neck Surgery Department of Oral and Maxillofacial Surgery, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA
| | - Rania H Younis
- Department of Oncology and Diagnostic Sciences, Division of Oral and Maxillofacial Pathology, University of Maryland School of Dentistry, Baltimore, MD, USA; Department of Oral Pathology, Faculty of Dentistry, Alexandria University, Alexandria, Egypt; Division of Tumor Immunology and Immunotherapy, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, UMB, Maryland, USA; Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA.
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Li K, Quan L, Huang F, Li Y, Shen Z. ADAM12 promotes the resistance of lung adenocarcinoma cells to EGFR-TKI and regulates the immune microenvironment by activating PI3K/Akt/mTOR and RAS signaling pathways. Int Immunopharmacol 2023; 122:110580. [PMID: 37418984 DOI: 10.1016/j.intimp.2023.110580] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/15/2023] [Accepted: 06/24/2023] [Indexed: 07/09/2023]
Abstract
Lung adenocarcinoma (LUAD) is a malignant respiratory disease, resulting in a heavy social burden. Epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) resistance and tumor immune microenvironment are important directions in the treatment of LUAD. In this study, we confirmed the role of ADAM metallopeptidase domain 12 (ADAM12) in LUAD development and progression. Our bioinformatic analysis was conducted to screen ADAM12 was correlated with EGFR-TKI and immune infiltration in LUAD patients. Our results showed that the transcription and post-transcription level of ADAM12 is significantly increased in tumor samples compared to normal samples, and ADAM12 correlated with poor prognosis in LUAD patients. High level of ADAM12 accelerated the LUAD progression via promoting proliferation, cell cycle, apoptosis escaping, immune escaping, EGFR-TKI resistance, angiogenesis, invasion and migration based on experiment validation in vitro and in vivo, which could be attenuated by ADAM12 knockdown. Further mechanistic studies suggested that the PI3K/Akt/mTOR and RAS signaling pathways were activated after ADAM12 knockdown. Therefore, ADAM12 might be validated as a possible molecular therapy target and prognostic marker for patients with LUAD.
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Affiliation(s)
- Keyu Li
- Department of Respiratory and Critical Care Medicine, The Affiliated Changsha Hospital of Xiangya School of Medicine Central South University, Changsha 410008, China
| | - Lingli Quan
- Department of Pulmonary and Critical Care Medicine 1, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Central South University, Zhuzhou 412000, China
| | - Fang Huang
- Department of General Medicine, The Affiliated Changsha Hospital of Xiangya School of Medicine Central South University, Changsha 410008, China
| | - Yukun Li
- Department of Assisted Reproductive Centre, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Central South University, Zhuzhou 412000, China.
| | - Zhenyu Shen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Hunan University of Medicine, Huaihua 418000, China.
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Che J, Su Z, Yang W, Xu L, Li Y, Wang H, Zhou W. Tumor-suppressor p53 specifically binds to miR-29c-3p and reduces ADAM12 expression in hepatocellular carcinoma. Dig Liver Dis 2023; 55:412-421. [PMID: 35853821 DOI: 10.1016/j.dld.2022.05.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is an extremely aggressive malignant tumor associated with high migratory and invasive potential. The present study intends to explore regulatory mechanism of p53/microRNA (miR)-29c-3p/A disintegrin and metalloproteinase 12 (ADAM12) axis in HCC based on clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) technology. METHODS Putative miR-29c-3p binding sites on ADAM12 3'UTR were verified by a luciferase assay. The binding affinity of p53 to miR-29c-3p was assessed based on CRISPR/Cas9 technology to construct a p53 knockout (p53-/-) HCCLM3 cell line. Furthermore, the effect of p53/miR-29c-3p/ADAM12 was assessed on maligant phenotypes in vitro and tumor formation and metastasis in nude mice. RESULTS ADAM12 was highly expressed but miR-29c-3p was poorly expressed in HCC. miR-29c-3p inhibited migratory and invasive abilities of HCC cells by targeting ADAM12 expression. p53 was found to target and upregulate miR-29c-3p, thus downregulating ADAM12 and conferring inhibitory effect on HCC cell activities. Moreover, ADAM12 knockout or p53 overexpression reduced HCC tumor formation and metastasis, which were reversed by further silencing of miR-29c-3p. CONCLUSION The identification of the p53/miR-29c-3p/ADAM12 axis in migration and invasion of HCC may potentially further our understanding of mechanisms underpinning HCC, and also bear translational value as novel molecular targets.
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Affiliation(s)
- Jinhui Che
- Department of Hepatopancreatobiliary Surgery, Xuzhou City Cancer Hospital, Xuzhou 221000, PR China
| | - Zhan Su
- Department of Hepatopancreatobiliary Surgery, Xuzhou City Cancer Hospital, Xuzhou 221000, PR China
| | - Weizhong Yang
- Department of Hepatopancreatobiliary Surgery, Xuzhou City Cancer Hospital, Xuzhou 221000, PR China
| | - Lu Xu
- Department of Hepatopancreatobiliary Surgery, Xuzhou City Cancer Hospital, Xuzhou 221000, PR China
| | - Yunjiu Li
- Department of Hepatopancreatobiliary Surgery, Xuzhou City Cancer Hospital, Xuzhou 221000, PR China
| | - Haihong Wang
- Department of Hepatopancreatobiliary Surgery, Xuzhou City Cancer Hospital, Xuzhou 221000, PR China.
| | - Wuyuan Zhou
- Department of Hepatopancreatobiliary Surgery, Xuzhou City Cancer Hospital, Xuzhou 221000, PR China.
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Savino L, Di Marcantonio MC, Moscatello C, Cotellese R, Centurione L, Muraro R, Aceto GM, Mincione G. Effects of H 2O 2 Treatment Combined With PI3K Inhibitor and MEK Inhibitor in AGS Cells: Oxidative Stress Outcomes in a Model of Gastric Cancer. Front Oncol 2022; 12:860760. [PMID: 35372019 PMCID: PMC8966616 DOI: 10.3389/fonc.2022.860760] [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: 01/23/2022] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Gastric cancer is worldwide the fifth and third cancer for incidence and mortality, respectively. Stomach wall is daily exposed to oxidative stress and BER system has a key role in the defense from oxidation-induced DNA damage, whilst ErbB receptors have important roles in the pathogenesis of cancer. We used AGS cells as an aggressive gastric carcinoma cell model, treated with H2O2 alone or combined with ErbB signaling pathway inhibitors, to evaluate the effects of oxidative stress in gastric cancer, focusing on the modulation of ErbB signaling pathways and their eventual cross-talk with BER system. We showed that treatment with H2O2 combined with PI3K/AKT and MEK inhibitors influenced cell morphology and resulted in a reduction of cancer cell viability. Migration ability was reduced after H2O2 treatment alone or combined with MEK inhibitor and after PI3K/AKT inhibitor alone. Western blotting analysis showed that oxidative stress stimulated EGFR pathway favoring the MAPKs activation at the expense of PI3K/AKT pathway. Gene expression analysis by RT-qPCR showed ErbB2 and OGG1 increase under oxidative stress conditions. Therefore, we suggest that in AGS cells a pro-oxidant treatment can reduce gastric cancer cell growth and migration via a different modulation of PI3K and MAPKs pathways. Moreover, the observed ErbB2 and OGG1 induction is a cellular response to protect the cells from H2O2-induced cell death. In conclusion, to tailor specific combinations of therapies and to decide which strategy to use, administration of a chemotherapy that increases intracellular ROS to toxic levels, might not only be dependent on the tumor type, but also on the molecular targeting therapy used.
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Affiliation(s)
- Luca Savino
- Department of Innovative Technologies in Medicine and Dentistry, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
| | - Maria Carmela Di Marcantonio
- Department of Innovative Technologies in Medicine and Dentistry, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
| | - Carmelo Moscatello
- Department of Medical, Oral and Biotechnological Sciences, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
| | - Roberto Cotellese
- Department of Medical, Oral and Biotechnological Sciences, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
| | - Lucia Centurione
- Department of Medicine and Aging Sciences, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
| | - Raffaella Muraro
- Department of Innovative Technologies in Medicine and Dentistry, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
| | - Gitana Maria Aceto
- Department of Medical, Oral and Biotechnological Sciences, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
| | - Gabriella Mincione
- Department of Innovative Technologies in Medicine and Dentistry, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
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Jing Z, Guo S, Li Y, Liang Z. FOXC2/ADAM12-dependent radiosensitivity of head and neck squamous cell carcinoma cells. Head Neck 2021; 44:212-225. [PMID: 34731528 DOI: 10.1002/hed.26918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 09/21/2021] [Accepted: 10/18/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Radiotherapy greatly benefits patients with tumors, but not all patients show favorable treatment response. This study investigated the impact of forkhead box protein C2 (FOXC2)-mediated a disintegrin and metalloprotease 12 (ADAM12) on the radiosensitivity of head and neck squamous cell carcinoma (HNSCC). METHODS After transfection and ionizing radiation, the biological activities of HNSCC cells were assessed. The relationship between ADAM12 and FOXC2 was verified. A xenograft model was used to evaluate the effect of FOXC2 knockdown on HNSCC growth in the context of radiation therapy. RESULTS FOXC2 and ADAM12 were upregulated in irradiated CAL-27 and HN4 cells. Knockdown of FOXC2 suppressed the malignant behaviors of CAL-27 and HN4 cells and inhibited the growth of transplanted tumors in nude mice. FOXC2 could bind ADAM12 promoter. Overexpression of ADAM12 reversed the promotion of FOXC2 silencing on the radiosensitivity of HNSCC cells. CONCLUSIONS FOXC2 regulates the radiosensitivity of HNSCC by targeting ADAM12.
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Affiliation(s)
- Zhibin Jing
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China
| | - Sitong Guo
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yao Li
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China
| | - Zheng Liang
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China
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Pham DL, Miller CR, Myers MS, Myers DM, Hansen LA, Nichols MG. Development and characterization of phasor-based analysis for FLIM to evaluate the metabolic and epigenetic impact of HER2 inhibition on squamous cell carcinoma cultures. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-210187R. [PMID: 34628733 PMCID: PMC8501457 DOI: 10.1117/1.jbo.26.10.106501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
SIGNIFICANCE Deranged metabolism and dysregulated growth factor signaling are closely associated with abnormal levels of proliferation, a recognized hallmark in tumorigenesis. Fluorescence lifetime imaging microscopy (FLIM) of endogenous nicotinamide adenine dinucleotide (NADH), a key metabolic coenzyme, offers a non-invasive, diagnostic indicator of disease progression, and treatment response. The model-independent phasor analysis approach leverages FLIM to rapidly evaluate cancer metabolism in response to targeted therapy. AIM We combined lifetime and phasor FLIM analysis to evaluate the influence of human epidermal growth factor receptor 2 (HER2) inhibition, a prevalent cancer biomarker, on both nuclear and cytoplasmic NAD(P)H of two squamous cell carcinoma (SCC) cultures. While better established, the standard lifetime analysis approach is relatively slow and potentially subject to intrinsic fitting errors and model assumptions. Phasor FLIM analysis offers a rapid, model-independent alternative, but the sensitivity of the bound NAD(P)H fraction to growth factor signaling must also be firmly established. APPROACH Two SCC cultures with low- and high-HER2 expression, were imaged using multiphoton-excited NAD(P)H FLIM, with and without treatment of the HER2 inhibitor AG825. Cells were challenged with mitochondrial inhibition and uncoupling to investigate AG825's impact on the overall metabolic capacity. Phasor FLIM and lifetime fitting analyses were compared within nuclear and cytoplasmic compartments to investigate epigenetic and metabolic impacts of HER2 inhibition. RESULTS NAD(P)H fluorescence lifetime and bound fraction consistently decreased following HER2 inhibition in both cell lines. High-HER2 SCC74B cells displayed a more significant response than low-HER2 SCC74A in both techniques. HER2 inhibition induced greater changes in nuclear than cytoplasmic compartments, leading to an increase in NAD(P)H intensity and concentration. CONCLUSIONS The use of both, complementary FLIM analysis techniques together with quantitative fluorescence intensity revealed consistent, quantitative changes in NAD(P)H metabolism associated with inhibition of growth factor signaling in SCC cell lines. HER2 inhibition promoted increased reliance on oxidative phosphorylation in both cell lines.
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Affiliation(s)
- Dan L. Pham
- Creighton University, Department of Physics, Omaha, Nebraska, United States
| | | | - Molly S. Myers
- Creighton University, Department of Physics, Omaha, Nebraska, United States
| | - Dominick M. Myers
- Creighton University, Department of Biomedical Sciences, Omaha, Nebraska, United States
| | - Laura A. Hansen
- Creighton University, Department of Biomedical Sciences, Omaha, Nebraska, United States
| | - Michael G. Nichols
- Creighton University, Department of Physics, Omaha, Nebraska, United States
- Creighton University, Department of Biomedical Sciences, Omaha, Nebraska, United States
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Kordbacheh F, Farah CS. Molecular Pathways and Druggable Targets in Head and Neck Squamous Cell Carcinoma. Cancers (Basel) 2021; 13:3453. [PMID: 34298667 PMCID: PMC8307423 DOI: 10.3390/cancers13143453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/02/2021] [Accepted: 07/08/2021] [Indexed: 12/30/2022] Open
Abstract
Head and neck cancers are a heterogeneous group of neoplasms, affecting an ever increasing global population. Despite advances in diagnostic technology and surgical approaches to manage these conditions, survival rates have only marginally improved and this has occurred mainly in developed countries. Some improvements in survival, however, have been a result of new management and treatment approaches made possible because of our ever-increasing understanding of the molecular pathways triggered in head and neck oncogenesis, and the growing understanding of the abundant heterogeneity of this group of cancers. Some important pathways are common to other solid tumours, but their impact on reducing the burden of head and neck disease has been less than impressive. Other less known and little-explored pathways may hold the key to the development of potential druggable targets. The extensive work carried out over the last decade, mostly utilising next generation sequencing has opened up the development of many novel approaches to head and neck cancer treatment. This paper explores our current understanding of the molecular pathways of this group of tumours and outlines associated druggable targets which are deployed as therapeutic approaches in head and neck oncology with the ultimate aim of improving patient outcomes and controlling the personal and economic burden of head and neck cancer.
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Affiliation(s)
- Farzaneh Kordbacheh
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA;
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, Australian National University, Canberra, ACT 0200, Australia
| | - Camile S. Farah
- The Australian Centre for Oral Oncology Research & Education, Perth, WA 6009, Australia
- Genomics for Life, Brisbane, QLD 4064, Australia
- Anatomical Pathology, Australian Clinical Labs, Subiaco, WA 6008, Australia
- Peter MacCallum Cancer Centre, Head and Neck Cancer Signalling Laboratory, Melbourne, VIC 3000, Australia
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8
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Yu C, You M, Zhang P, Zhang S, Yin Y, Zhang X. A five-gene signature is a prognostic biomarker in pan-cancer and related with immunologically associated extracellular matrix. Cancer Med 2021; 10:4629-4643. [PMID: 34121340 PMCID: PMC8267129 DOI: 10.1002/cam4.3986] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/20/2021] [Accepted: 04/23/2021] [Indexed: 12/20/2022] Open
Abstract
The tumor microenvironment (TME) is related to extracellular matrix (ECM) dynamics and has a broad fundamental and mechanistic role in tumorigenesis and cancer progression. We hypothesized that ECM regulators might play an essential role in pan‐cancer attribution by causing a generic effect through its regulation of the dynamics of ECM alteration. By analyzing data from TCGA using GSEA and univariate Cox regression analysis, we found that ECM regulator genes were significantly enriched and contributed to mortality in various cancer types. Notably, UMAP analysis revealed that ECM regulator genes dominated the differences between tumor and adjacent normal tissues based on 59 or 31 pan‐survival‐related ECM gene sets. Subsequently, a five‐gene signature consisting of the predominant ECM regulators ADAM12, MMP1, SERPINE1, PLOD3, and P4HA3 was identified. We found that this five‐gene signature was pro‐mortality in 18 types of cancer in TCGA, and validated eleven other cancer types in TCGA and seven types in the TARGET and CoMMpass databases using overall survival analysis. KEGG pathway enrichment and Pearson correlation analysis indicated that these five component genes that were correlated with specific ECM proteins involved in tumorigenesis from the ECM receptor interaction gene set. Additionally, the fitted results of a linear model were applied to strengthen the discovery, demonstrating that the five genes were correlated with immune infiltration score and especially associated with typically immunologically “cold” tumors. We thus conclude that the ADAM12, MMP1, SERPINE1, PLOD3, and P4HA3 signature showed a close association with a pan‐cancer effect on prognosis and is related to ECM proteins in the TME which corresponding with immunologically “cold” cancer types.
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Affiliation(s)
- Chunlai Yu
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China
| | - Mingliang You
- Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Hangzhou Cancer Institute, Affiliated Hangzhou Cancer Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Peizhen Zhang
- Department of Obstetrics and Gynecology, Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Sheng Zhang
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China
| | - Yuzhu Yin
- Department of Obstetrics and Gynecology, Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiao Zhang
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China.,CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, and Guangzhou Medical University, Guangzhou, Guangdong, China
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Wei T, Bi G, Bian Y, Ruan S, Yuan G, Xie H, Zhao M, Shen R, Zhu Y, Wang Q, Yang Y, Zhu D. The Significance of Secreted Phosphoprotein 1 in Multiple Human Cancers. Front Mol Biosci 2020; 7:565383. [PMID: 33324676 PMCID: PMC7724571 DOI: 10.3389/fmolb.2020.565383] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/24/2020] [Indexed: 12/12/2022] Open
Abstract
Malignant tumor represents a major reason for death in the world and its incidence is growing rapidly. Developing the tools for early diagnosis is possibly a promising way to offer diverse therapeutic options and promote the survival chance. Secreted phosphoprotein 1 (SPP1), also called Osteopontin (OPN), has been demonstrated overexpressed in many cancers. However, the specific role of SPP1 in prognosis, gene mutations, and changes in gene and miRNA expression in human cancers is unclear. In this report, we found SPP1 expression was higher in most of the human cancers. Based on Kaplan-Meier plotter and the PrognoScan database, we found high SPP1 expression was significantly correlated with poor survival in various cancers. Using a large dataset of colon adenocarcinoma (COAD), head and neck cancer (HNSC), lung adenocarcinoma (LUAD), and lung squamous cell carcinoma (LUSC) patients from the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases, this study identified 22 common genes and 2 common miRNAs. GO, and KEGG paths analyses suggested that SPP1 correlated genes were mainly involved in positive regulation of immune cell activation and infiltration. SPP1-associated genes and miRNAs regulatory networks suggested that their interactions may play a role in the progression of four selected cancers. SPP1 showed significant positive correlation with the immunocyte and immune marker sets infiltrating degrees. All of these data provide strong evidence that SPP1 may promote tumor progress through interacting with carcinogenic genes and facilitating immune cells’ infiltration in COAD, HNSC, LUAD, and LUSC.
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Affiliation(s)
- Tengteng Wei
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Guoshu Bi
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yunyi Bian
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Suhong Ruan
- Department of Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Guangda Yuan
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Hongya Xie
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Mengnan Zhao
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Rongming Shen
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Yimeng Zhu
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Qun Wang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yong Yang
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Donglin Zhu
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
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10
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Wang L, Tan Z, Zhang Y, Kady Keita N, Liu H, Zhang Y. ADAM12 silencing promotes cellular apoptosis by activating autophagy in choriocarcinoma cells. Int J Oncol 2020; 56:1162-1174. [PMID: 32319603 PMCID: PMC7115740 DOI: 10.3892/ijo.2020.5007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 01/17/2020] [Indexed: 12/14/2022] Open
Abstract
ADAM metallopeptidase domain 12 (ADAM12) has been demonstrated to mediate cell proliferation and apoptosis resistance in several types of cancer cells. However, the effect of ADAM12 silencing on the proliferation and apoptosis of choriocarcinoma cells remains unknown. The present study revealed that ADAM12 silencing significantly inhibited cellular activity and proliferation in the human choriocarcinoma JEG3 cell line and increased the rate of apoptosis. In addition, ADAM12 silencing significantly increased the expression levels of the autophagy proteins microtubule-associated protein-light-chain 3 (LC3B) and autophagy related 5 (ATG5) and the fluorescence density of LC3B in JEG-3 cells. However, the suppression of autophagy by 3-methyladenine could block ADAM12 silencing-induced cellular apoptosis. ADAM12 silencing reduced the levels of the inflammatory factors interleukin-1β, interferon-γ and TNF-α, and inactivated nuclear p65-NF-κB and p-mTOR in JEG-3 cells. The downregulation of p-mTOR expression by ADAM12 silencing was rescued in 3-methyladenine-treated JEG-3 cells, indicating that mTOR might participate in the autophagy-mediated pro-apoptotic effect of ADAM12 silencing. In conclusion, ADAM12 silencing promoted cellular apoptosis in human choriocarcinoma JEG3 cells, which might be associated with autophagy and the mTOR response. These findings indicate that ADAM12 silencing might be a potential novel therapeutic target for choriocarcinoma.
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Affiliation(s)
- Lin Wang
- Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Zhihui Tan
- Department of Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Ying Zhang
- Department of Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Nankoria Kady Keita
- Department of Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Huining Liu
- Department of Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Yu Zhang
- Department of Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
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11
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Yang B, Fu L, Xu S, Xiao J, Li Z, Liu Y. A nomogram based on a gene signature for predicting the prognosis of patients with head and neck squamous cell carcinoma. Int J Biol Markers 2019; 34:309-317. [PMID: 31452437 DOI: 10.1177/1724600819865745] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Head and neck squamous cell carcinoma (HNSCC) is one of the most common malignant tumors. The purpose of this study was to establish and validate a gene-expression-based prognostic signature in non-metastatic patients with HNSCC. MATERIALS AND METHODS All the patients were retrieved from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. We randomly divided the GSE65858 samples into 70% (training cohort, n = 190) and 30% (internal validation cohort, n = 72). A total of 36 samples collected from the TCGA HNSCC databases were selected as an independent external validation cohort. The oligo package in R was used to normalize the raw data before analysis. Data characteristics were extracted, and a gene signature was built via the least absolute shrinkage and selection operator regression model. The predictive model was developed by multivariable Cox regression analysis. T stage, N stage, human papilloma virus status, and the gene signature were incorporated in this predictive model, which was shown as a nomogram. Calibration and discrimination were performed to assess the performance of the nomogram. The clinical utility of this nomogram was assessed by the decision curve analysis. RESULTS Overall, 2001 significant messenger RNAs in HNSCC samples were identified compared with normal samples. The gene signature contained seven genes and significantly correlated with overall survival. The gene signature was also significant in subgroup analysis of the primary cohort. The calibration was plotted in the external cohort (C-index 0.90, 95% CI 0.85, 0.95) compared with the training (C-index 0.76, 95% CI 0.73, 0.79) and internal (C-index 0.71, 95% CI 0.66, 0.77) cohorts. In clinic, a decision curve analysis demonstrated that the model including the prognostic gene signature score status was better than that without it. CONCLUSION This study developed and validated a predictive model, which can promote the individualized prediction of overall survival in non-metastatic patients with HNSCC.
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Affiliation(s)
- Bowen Yang
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Medical Record Management Center, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China.,Provincial Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Lingyu Fu
- Medical Record Management Center, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Shan Xu
- Department of ENT, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jiawen Xiao
- Department of Medical Oncology, Shenyang Fifth People Hospital, Shenyang, China
| | - Zhi Li
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Provincial Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Yunpeng Liu
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Provincial Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
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12
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Platko K, Haas-Neill S, Aziz T, Al-Nedawi K. The role of circulating extracellular vesicles in breast cancer classification and molecular subtyping. Breast J 2019; 25:691-695. [PMID: 31079422 DOI: 10.1111/tbj.13309] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/19/2018] [Accepted: 09/19/2018] [Indexed: 11/28/2022]
Abstract
Currently, tumor biopsies are used for breast cancer molecular subtyping. Biopsies are associated with various pathological changes and are thought to contribute to the dissemination of tumor cells. Extracellular vesicles shed by tumor cells into circulation exhibit the molecular signature of the parent cells. Herein, we show that proteomic analysis of circulating EV can discriminate BC patients from healthy subjects and indicate stage of the disease. Also, we performed a correlation between the BC molecular subtype using plasma EV and immunohistochemistry of tumor biopsies. Circulating EV may represent a useful, non-invasive tool to study the molecular makeup of BC tumors.
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Affiliation(s)
- Khrystyna Platko
- Division of Nephrology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,Hamilton Center for Kidney Research, St. Joseph's Hospital, Hamilton, Ontario, Canada
| | - Sandor Haas-Neill
- Division of Nephrology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,Hamilton Center for Kidney Research, St. Joseph's Hospital, Hamilton, Ontario, Canada
| | - Tariq Aziz
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Khalid Al-Nedawi
- Division of Nephrology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,Hamilton Center for Kidney Research, St. Joseph's Hospital, Hamilton, Ontario, Canada
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13
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Norum HM, Michelsen AE, Lekva T, Arora S, Otterdal K, Olsen MB, Kong XY, Gude E, Andreassen AK, Solbu D, Karason K, Dellgren G, Gullestad L, Aukrust P, Ueland T. Circulating delta-like Notch ligand 1 is correlated with cardiac allograft vasculopathy and suppressed in heart transplant recipients on everolimus-based immunosuppression. Am J Transplant 2019; 19:1050-1060. [PMID: 30312541 DOI: 10.1111/ajt.15141] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 10/02/2018] [Accepted: 10/07/2018] [Indexed: 02/06/2023]
Abstract
Cardiac allograft vasculopathy (CAV) causes heart failure after heart transplantation (HTx), but its pathogenesis is incompletely understood. Notch signaling, possibly modulated by everolimus (EVR), is essential for processes involved in CAV. We hypothesized that circulating Notch ligands would be dysregulated after HTx. We studied circulating delta-like Notch ligand 1 (DLL1) and periostin (POSTN) and CAV in de novo HTx recipients (n = 70) randomized to standard or EVR-based, calcineurin inhibitor-free immunosuppression and in maintenance HTx recipients (n = 41). Compared to healthy controls, plasma DLL1 and POSTN were elevated in de novo (P < .01; P < .001) and maintenance HTx recipients (P < .001; P < .01). Use of EVR was associated with a treatment effect for DLL1. For de novo HTx recipients, a change in DLL1 correlated with a change in CAV at 1 (P = .021) and 3 years (P = .005). In vitro, activation of T cells increased DLL1 secretion, attenuated by EVR. In vitro data suggest that also endothelial cells and vascular smooth muscle cells (VSMCs) could contribute to circulating DLL1. Immunostaining of myocardial specimens showed colocalization of DLL1 with T cells, endothelial cells, and VSMCs. Our findings suggest a role of DLL1 in CAV progression, and that the beneficial effect of EVR on CAV could reflect a suppressive effect on DLL1. Trial registration numbers-SCHEDULE trial: ClinicalTrials.gov NCT01266148; NOCTET trial: ClinicalTrials.gov NCT00377962.
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Affiliation(s)
- Hilde M Norum
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway.,Division of Emergencies and Critical Care, Department for Research and Development, Oslo University Hospital, Oslo, Norway
| | - Annika E Michelsen
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway
| | - Tove Lekva
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Satish Arora
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Center for Heart Failure Research, Medical Faculty, University of Oslo, Oslo, Norway
| | - Kari Otterdal
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Maria Belland Olsen
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Xiang Yi Kong
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway
| | - Einar Gude
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Arne K Andreassen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | | | - Kristjan Karason
- Sahlgrenska University Hospital, Transplant Institute, Gothenburg, Sweden.,Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Göran Dellgren
- Sahlgrenska University Hospital, Transplant Institute, Gothenburg, Sweden.,Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, University of Gothenburg, Gothenburg, Sweden.,Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lars Gullestad
- Institute of Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway.,Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Pål Aukrust
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway.,Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Thor Ueland
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway.,K.G. Jebsen TREC, University of Tromsø, Tromsø, Norway
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14
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Huang X, Xie X, Liu P, Yang L, Chen B, Song C, Tang H, Xie X. Adam12 and lnc015192 act as ceRNAs in breast cancer by regulating miR-34a. Oncogene 2018; 37:6316-6326. [PMID: 30042416 DOI: 10.1038/s41388-018-0410-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/12/2018] [Accepted: 06/26/2018] [Indexed: 12/13/2022]
Abstract
Long non-coding RNAs (lncRNAs) are reported to play vital roles in the progress of multiple cancers. However, the functions of lncRNAs in breast cancer remain to be discovered. We performed microarrays to identify the differentially expressed mRNAs and lncRNAs in breast tissues with or without miR-34a knockout. To explore the functions of the differentially expressed mRNA and lncRNA in breast cancer, we conducted a series of experiments. We found that Adam12 and lnc015192 were significantly upregulated in miR-34a knockout breast tissues. Knockdown of Adam12 and lnc015192 inhibited breast cancer cell migration, invasion, and epithelial-mesenchymal transition (EMT). Further experiments revealed that lnc015192 regulated Adam12 expression by functioning as a competing endogenous RNA (ceRNA) for miR-34a. In summary, our study demonstrate that Adam12 and lnc015192 promote breast cancer metastasis partly by sponging miR-34a through the ceRNA mechanism.
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Affiliation(s)
- Xiaojia Huang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Xinhua Xie
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Peng Liu
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Lu Yang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Bo Chen
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Cailu Song
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China
| | - Hailin Tang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China.
| | - Xiaoming Xie
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, China.
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15
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Yuan YG, Wang YH, Xing HH, Gurunathan S. Quercetin-mediated synthesis of graphene oxide-silver nanoparticle nanocomposites: a suitable alternative nanotherapy for neuroblastoma. Int J Nanomedicine 2017; 12:5819-5839. [PMID: 28860751 PMCID: PMC5566358 DOI: 10.2147/ijn.s140605] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Graphene and graphene-related materials have gained substantial interest from both academia and industry for the development of unique nanomaterials for biomedical applications. Graphene oxide (GO) and silver nanoparticles (AgNPs) are a valuable platform for the development of nanocomposites, permitting the combination of nanomaterials with different physical and chemical properties to generate novel materials with improved and effective functionalities in a single platform. Therefore, this study was conducted to synthesize a graphene oxide–silver nanoparticle (GO-AgNPs) nanocomposite using the biomolecule quercetin and evaluate the potential cytotoxicity and mechanism of GO-AgNPs in human neuroblastoma cancer cells (SH-SY5Y). Methods The synthesized GO-AgNPs were characterized using various analytical techniques. The potential toxicities of GO-AgNPs were evaluated using a series of biochemical and cellular assays. The expression of apoptotic and anti-apoptotic genes was measured by quantitative real-time reverse transcription polymerase chain reaction. Further, apoptosis was confirmed by caspase-9/3 activity and a terminal deoxynucleotidyl transferase dUTP nick end labeling assay, and GO-AgNPs-induced autophagy was also confirmed by transmission electron microscopy. Results The prepared GO-AgNPs exhibited significantly higher cytotoxicity toward SH-SY5Y cells than GO. GO-AgNPs induced significant cytotoxicity in SH-SY5Y cells by the loss of cell viability, inhibition of cell proliferation, increased leakage of lactate dehydrogenase, decreased level of mitochondrial membrane potential, reduced numbers of mitochondria, enhanced level of reactive oxygen species generation, increased expression of pro-apoptotic genes, and decreased expression of anti-apoptotic genes. GO-AgNPs induced caspase-9/3-dependent apoptosis via DNA fragmentation. Finally, GO-AgNPs induced accumulation of autophagosomes and autophagic vacuoles. Conclusion In this study, we developed an environmentally friendly, facile, dependable, and simple method for the synthesis of GO-AgNPs nanocomposites using quercetin. The synthesized GO-AgNPs exhibited enhanced cytotoxicity compared with that of GO at very low concentrations. This study not only elucidates the potential cytotoxicity against neuroblastoma cancer cells, but also reveals the molecular mechanism of toxicity.
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Affiliation(s)
- Yu-Guo Yuan
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Yan-Hong Wang
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Hui-Hui Xing
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Sangiliyandi Gurunathan
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, Republic of Korea
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16
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Roy R, Dagher A, Butterfield C, Moses MA. ADAM12 Is a Novel Regulator of Tumor Angiogenesis via STAT3 Signaling. Mol Cancer Res 2017; 15:1608-1622. [PMID: 28765266 DOI: 10.1158/1541-7786.mcr-17-0188] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/26/2017] [Accepted: 07/27/2017] [Indexed: 12/28/2022]
Abstract
ADAM12, (ADisintegrin and metalloproteinase domain-containing protein 12), is upregulated in epithelial cancers and contributes to increased tumor proliferation, metastasis, and endocrine resistance. However, its role in tumor angiogenesis is unknown. Here, we report that ADAM12 is upregulated in the vessels of aggressive breast tumors and exerts key regulatory functions. ADAM12 significantly increases bFGF-mediated angiogenesis in vivo and ADAM12 levels are upregulated in tumors that have undergone a switch to the angiogenic phenotype. Importantly, ADAM12-overexpressing breast tumors display a higher microvessel density (MVD). Our goal was to identify the mechanisms by which tumor-associated ADAM12 promotes angiogenesis. ADAM12 expression in breast tumor cells correlated with a significant upregulation of proangiogenic factors such as VEGF and MMP-9 and downregulation of antiangiogenic factors such as Thrombospondin-1 (THBS1/TSP1) and Tissue Inhibitor of Metalloproteinases-2 (TIMP-2). Co-culture with ADAM12-expressing tumor cells promoted endothelial cell (EC) recruitment and capillary tube formation. Conversely, downregulation of endogenous ADAM12 in breast cancer cell lines resulted in reduction of pro-angiogenic factors and EC recruitment. These ADAM12-mediated effects are driven by the activation of EGFR, STAT3 and Akt signaling. Blockade of EGFR/STAT3 or silencing of ADAM12 reversed the proangiogenic tumor phenotype, significantly downregulated pro-angiogenic mitogens and reduced EC recruitment. In human breast cancer tissues, ADAM12 expression was significantly positively correlated with pro-angiogenic factors including VEGF and MMP-9 but negatively associated with TSP1.Implications: These novel findings suggest that ADAM12 regulates EC function and facilitates a proangiogenic microenvironment in a STAT3-dependent manner. A combined approach of targeting ADAM12 and STAT3 signaling in breast cancer may represent a promising strategy to inhibit tumor neovascularization. Mol Cancer Res; 15(11); 1608-22. ©2017 AACR.
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Affiliation(s)
- Roopali Roy
- The Program in Vascular Biology, Boston Children's Hospital, Boston, Massachusetts. .,Department of Surgery, Boston Children's Hospital, Boston, Massachusetts.,Department of Surgery, Harvard Medical School, Boston, Massachusetts
| | - Adelle Dagher
- The Program in Vascular Biology, Boston Children's Hospital, Boston, Massachusetts.,Department of Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Catherine Butterfield
- The Program in Vascular Biology, Boston Children's Hospital, Boston, Massachusetts.,Department of Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Marsha A Moses
- The Program in Vascular Biology, Boston Children's Hospital, Boston, Massachusetts. .,Department of Surgery, Boston Children's Hospital, Boston, Massachusetts.,Department of Surgery, Harvard Medical School, Boston, Massachusetts
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17
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Awasthi S, Chauhan R, Srivastava S, Tripathi RD. The Journey of Arsenic from Soil to Grain in Rice. FRONTIERS IN PLANT SCIENCE 2017; 8:1007. [PMID: 28676805 PMCID: PMC5476935 DOI: 10.3389/fpls.2017.01007] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 05/26/2017] [Indexed: 05/04/2023]
Abstract
Arsenic (As) is a non-essential toxic metalloid whose elevated concentration in rice grains is a serious issue both for rice yield and quality, and for human health. The rice-As interactions, hence, have been studied extensively in past few decades. A deep understanding of factors influencing As uptake and transport from soil to grains can be helpful to tackle this issue so as to minimize grain As levels. As uptake at the root surface by rice plants depends on factors like iron plaque and radial oxygen loss. There is involvement of a number of transporters viz., phosphate transporters and aquaglyceroporins in the uptake and transport of different As species and in the movement to subcellular compartments. These processes are also affected by sulfur availability and consequently on the level of thiol (-SH)-containing As binding peptides viz., glutathione (GSH) and phytochelatins (PCs). Further, the role of phloem in As movement to the grains is also suggested. This review presents a detailed map of journey of As from soil to the grains. The implications for the utilization of available knowledge in minimizing As in rice grains are presented.
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Affiliation(s)
- Surabhi Awasthi
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial ResearchLucknow, India
| | - Reshu Chauhan
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial ResearchLucknow, India
| | - Sudhakar Srivastava
- Institute of Environment and Sustanaible Development, Banaras Hindu UniversityVaranasi, India
| | - Rudra D. Tripathi
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial ResearchLucknow, India
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18
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Seo T, Sakon T, Nakazawa S, Nishioka A, Watanabe K, Matsumoto K, Akasaka M, Shioi N, Sawada H, Araki S. Haemorrhagic snake venom metalloproteases and human
ADAM
s cleave
LRP
5/6, which disrupts cell–cell adhesions
in vitro
and induces haemorrhage
in vivo. FEBS J 2017; 284:1657-1671. [DOI: 10.1111/febs.14066] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/11/2017] [Accepted: 03/22/2017] [Indexed: 11/25/2022]
Affiliation(s)
- Tadahiko Seo
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
| | - Taketo Sakon
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
| | - Shiori Nakazawa
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
| | - Asuka Nishioka
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
| | - Kohei Watanabe
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
| | - Kaori Matsumoto
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
| | - Mari Akasaka
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
| | - Narumi Shioi
- Department of Chemistry Faculty of Science Fukuoka University Japan
| | - Hitoshi Sawada
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
| | - Satohiko Araki
- Sugashima Marine Biological Laboratory Graduate School of Science Nagoya University Japan
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19
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Yin H, Zhong F, Ouyang Y, Wang Q, Ding L, He S. Upregulation of ADAM12 contributes to accelerated cell proliferation and cell adhesion-mediated drug resistance (CAM-DR) in Non-Hodgkin's Lymphoma. ACTA ACUST UNITED AC 2017; 22:527-535. [PMID: 28395594 DOI: 10.1080/10245332.2017.1312205] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE ADAM12 is a member of a disintegrin and metalloproteinase family and has been reported to participate in the development of variety of tumors. However, the role of ADAM12 in Non-Hodgkin Lymphoma (NHL) has not been investigated. The present study was undertaken to determine the expression and biologic function of ADAM12 in human NHL. METHODS First, we constructed a model of cell adhesion in NHL, the mRNA, and protein level of ADAM12 in suspension and the adhesion model was analyzed by RT-PCR and western blot. Then, flow cytometry assay and western blot were used to investigate the mechanism of ADAM12 in the proliferation of NHL cells. In vitro, after using siRNA interfering ADAM12 expression, we performed adhesion assay and cell viability assay to determine the effect of ADAM12 on adhesive rate and drug sensitivity. RESULTS ADAM12 was lowly expressed in suspended cells and highly expressed in adherent NHL cells. In addition, ADAM12 was positively correlated with the proliferation and apoptosis of NHL cells by regulating the expression of p-AKT and p-GSK-3β. Furthermore, ADAM12 promoted cell adhesion-mediated drug resistance (CAM-DR) in DLBCL via AKT signaling pathway. CONCLUSION AND DISCUSSION Our data support a role for ADAM12 in NHL cell proliferation, adhesion, and drug resistance, and it may pave the way for a novel therapeutic approach for CAM-DR in NHL.
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Affiliation(s)
- Haibing Yin
- a Department of Pathology , Affiliated Cancer Hospital of Nantong University , Nantong , PR China
| | - Fei Zhong
- b Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University , Nantong , PR China
| | - Yu Ouyang
- b Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University , Nantong , PR China
| | - Qiru Wang
- b Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University , Nantong , PR China
| | - Linlin Ding
- b Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University , Nantong , PR China
| | - Song He
- a Department of Pathology , Affiliated Cancer Hospital of Nantong University , Nantong , PR China
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20
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Fine Tuning Cell Migration by a Disintegrin and Metalloproteinases. Mediators Inflamm 2017; 2017:9621724. [PMID: 28260841 PMCID: PMC5316459 DOI: 10.1155/2017/9621724] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 12/22/2016] [Indexed: 02/07/2023] Open
Abstract
Cell migration is an instrumental process involved in organ development, tissue homeostasis, and various physiological processes and also in numerous pathologies. Both basic cell migration and migration towards chemotactic stimulus consist of changes in cell polarity and cytoskeletal rearrangement, cell detachment from, invasion through, and reattachment to their neighboring cells, and numerous interactions with the extracellular matrix. The different steps of immune cell, tissue cell, or cancer cell migration are tightly coordinated in time and place by growth factors, cytokines/chemokines, adhesion molecules, and receptors for these ligands. This review describes how a disintegrin and metalloproteinases interfere with several steps of cell migration, either by proteolytic cleavage of such molecules or by functions independent of proteolytic activity.
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21
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Taspase1: a 'misunderstood' protease with translational cancer relevance. Oncogene 2015; 35:3351-64. [PMID: 26657154 DOI: 10.1038/onc.2015.436] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 10/09/2015] [Accepted: 10/09/2015] [Indexed: 12/20/2022]
Abstract
Proteolysis is not only a critical requirement for life, but the executing enzymes also play important roles in numerous pathological conditions, including cancer. Therefore, targeting proteases is clearly relevant for improving cancer patient care. However, to effectively control proteases, a profound knowledge of their mechanistic function as well as their regulation and downstream signalling in health and disease is required. The highly conserved protease Threonine Aspartase1 (Taspase1) is overexpressed in numerous liquid and solid malignancies and was characterized as a 'non-oncogene addiction' protease. Although Taspase1 was shown to cleave various regulatory proteins in humans as well as leukaemia provoking mixed lineage leukaemia fusions, our knowledge on its detailed functions and the underlying mechanisms contributing to cancer is still incomplete. Despite superficial similarity to type 2 asparaginases as well as Ntn proteases, such as the proteasome, Taspase1-related research so far gives us the picture of a unique protease exhibiting special features. Moreover, neither effective genetic nor chemical inhibitors for this enzyme are available so far, thus hampering not only to further dissect Taspase1's pathobiological functions but also precluding the assessment of its clinical impact. Based on recent insights, we here critically review the current knowledge of Taspase1's structure-function relationship and its mechanistic relevance for tumorigenesis obtained from in vitro and in vivo cancer models. We provide a comprehensive overview of tumour entities for which Taspase1 might be of predictive and therapeutic value, and present the respective experimental evidence. To stimulate progress in the field, a comprehensive overview of Taspase1 targeting approaches is presented, including coverage of Taspase1-related patents. We conclude by discussing future inhibition strategies and relevant challenges, which need to be resolved by the field.
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22
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Ma B, Ma Q, Jin C, Wang X, Zhang G, Zhang H, Seeger H, Mueck AO. ADAM12 expression predicts clinical outcome in estrogen receptor-positive breast cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:13279-13283. [PMID: 26722530 PMCID: PMC4680475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/20/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES Our study was aimed to make sure whether ADAM12 could serve as a prognostic biomarker of estrogen receptor (ER) -positive breast cancer. METHODS 127 patients with ER-positive breast cancer were included in the present study. The level of ADAM12 was assayed through real-time quantitative PCR (RT-qPCR). Levels of ADAM12 in tumor tissues and adjacent normal tissues were compared with paired t-test. The association of ADAM12 expression with clinical characteristics was analyzed via χ(2) test. Kaplan-Meier survival curve was used to evaluate the role of ADAM12 expression in overall survival (OS) of patients. Cox-regression analysis was performed to judge if ADAM12 could serve as a prognostic marker in breast cancer. RESULTS The level of ADAM12 was upregulated in tumor tissues of breast cancer compared to that of adjacent normal tissues (P < 0.05). The expression of ADAM12 was closely related to the Ki-67 and HER2 status (P < 0.05 for both). The results of Kaplan-Meier survival curve showed that patients with higher level of ADAM12 exhibited shorter survival time compared to that of low level of ADAM12 (P < 0.001). Cox regression analysis showed that ADAM12 might be a biomarker in predicting prognosis of patients with ER-positive breast cancer (HR = 7.116, 95% CI = 3.329-15.212). CONCLUSION ADAM12 appears to be a prognostic marker in ER-positive breast cancer.
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Affiliation(s)
- Bo Ma
- Affiliated Central Hospital of Huzhou Teachers CollegeHuzhou, Zhejiang 313000, China
- University HospitalTuebingen, Germany
| | | | - Chunhui Jin
- Wuxi Hospital of Traditional Chinese MedicineChina
| | - Xiaohong Wang
- Affiliated Central Hospital of Huzhou Teachers CollegeHuzhou, Zhejiang 313000, China
| | - Guolei Zhang
- Affiliated Central Hospital of Huzhou Teachers CollegeHuzhou, Zhejiang 313000, China
| | - Huiying Zhang
- Affiliated Central Hospital of Huzhou Teachers CollegeHuzhou, Zhejiang 313000, China
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Rao VH, Rai V, Stoupa S, Agrawal DK. Blockade of Ets-1 attenuates epidermal growth factor-dependent collagen loss in human carotid plaque smooth muscle cells. Am J Physiol Heart Circ Physiol 2015; 309:H1075-86. [PMID: 26254334 DOI: 10.1152/ajpheart.00378.2015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 07/27/2015] [Indexed: 12/27/2022]
Abstract
Although degradation of extracellular matrix by matrix metalloproteinases (MMPs) is thought to be involved in symptomatic (S) carotid plaques in atherosclerosis, the mechanisms of MMP expression are poorly understood. Here, we demonstrate that collagen loss in vascular smooth vessel cells (VSMCs) isolated from S plaques was induced by epidermal growth factor (EGF) through the activation of p38-MAPK and JNK-MAPK pathways. Inhibitors of p38-MAPK and JNK-MAPK signaling pathways downregulated the expression of MMP-1 and MMP-9. In addition, we examined whether v-ets erythroblastosis virus E26 oncogene homologue 1 (Ets-1), an important regulator of different genes, is involved in destabilizing S plaques in patients with carotid stenosis. We demonstrate that EGF induces Ets-1 expression and decreases interstitial and basement membrane collagen in vascular smooth muscle cells (VSMCs) from patients with carotid stenosis. Increased expression of MMP-1 and -9 and decreased collagen mRNA transcripts were also found in Ets-1-overexpressed VSMCs. Transfection with both dominant-negative form of Ets-1 and small interfering RNA blocked EGF-induced MMP-1 and -9 expressions and increased the mRNA transcripts for collagen I (α1) and collagen III (α1) in S compared with asymptomatic (AS) carotid plaques. Inhibitors of p38-MAPK (SB202190) and JNK-MAPK (SP600125) signaling pathways decreased the expression of Ets-1, MMP-1, and MMP-9 and increased collagen type I and III expression in EGF-treated VSMCs. This study provides a mechanistic insight into the role of Ets-1 in the plaque destabilization in patients with carotid stenosis involving p38-MAPK and JNK signaling pathways.
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Affiliation(s)
- Velidi H Rao
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Nebraska
| | - Vikrant Rai
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Nebraska
| | - Samantha Stoupa
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Nebraska
| | - Devendra K Agrawal
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Nebraska
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Tomar S, Graves CA, Altomare D, Kowli S, Kassler S, Sutkowski N, Gillespie MB, Creek KE, Pirisi L. Human papillomavirus status and gene expression profiles of oropharyngeal and oral cancers from European American and African American patients. Head Neck 2015; 38 Suppl 1:E694-704. [PMID: 25899179 DOI: 10.1002/hed.24072] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 04/13/2015] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Disparities in prevalence, human papillomavirus (HPV) status, and mortality rates for head and neck cancer have been described between African American and European American patients. METHODS We studied the HPV status and gene expression profiles in 56 oropharyngeal/oral cavity tumors and 9 normal tissue samples from European American and African American patients treated in South Carolina between 2010 and 2012. RESULTS Overall, 59% of tumors were HPV DNA-positive, but only 48% of those expressed E7 mRNA (HPV-active). The prevalence of HPV-active tumors was 10% in African American patients and 39% in European American patients. Tumors positive for HPV DNA but negative for HPV mRNA exhibited gene expression profiles distinct from those of both HPV-active and HPV-negative cancers, suggesting that HPV DNA-positive/RNA-negative tumors may constitute a unique group. CONCLUSION This study provides a direct assessment of differential expression patterns in HPV-related oropharyngeal cancer arising from African American and European American patients, for which there is a paucity of data. © 2015 Wiley Periodicals, Inc. Head Neck 00: 000-000, 2015.
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Affiliation(s)
- Swati Tomar
- Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Christian A Graves
- Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Diego Altomare
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, South Carolina
| | - Sangeeta Kowli
- Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Susannah Kassler
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, South Carolina
| | - Natalie Sutkowski
- Department of Microbiology and Immunology, Medical University of South Carolina, Columbia, South Carolina
| | - M Boyd Gillespie
- Department of Otolaryngology and Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Kim E Creek
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, South Carolina
| | - Lucia Pirisi
- Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina
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Cheon DJ, Li AJ, Beach JA, Walts AE, Tran H, Lester J, Karlan BY, Orsulic S. ADAM12 is a prognostic factor associated with an aggressive molecular subtype of high-grade serous ovarian carcinoma. Carcinogenesis 2015; 36:739-47. [PMID: 25926422 DOI: 10.1093/carcin/bgv059] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 04/26/2015] [Indexed: 01/24/2023] Open
Abstract
ADAM metallopeptidase domain 12 (ADAM12) is a promising biomarker because of its low expression in normal tissues and high expression in a variety of human cancers. However, ADAM12 levels in ovarian cancer have not been well characterized. We previously identified ADAM12 as one of the signature genes associated with poor survival in high-grade serous ovarian carcinoma (HGSOC). Here, we sought to determine if high levels of the ADAM12 protein and/or messenger RNA (mRNA) are associated with clinical variables in HGSOC. We show that high protein levels of ADAM12 in banked preoperative sera are associated with shorter progression-free and overall survival. Tumor levels of ADAM12 mRNA were also associated with shorter progression-free and overall survival as well as with lymphatic and vascular invasion, and residual tumor volume following cytoreductive surgery. The majority of genes co-expressed with ADAM12 in HGSOC were transforming growth factor (TGF)β signaling targets that function in collagen remodeling and cell-matrix adhesion. In tumor sections, the ADAM12 protein and mRNA were expressed in epithelial cancer cells and surrounding stromal cells. In vitro data showed that ADAM12 mRNA levels can be increased by TGFβ signaling and direct contact between epithelial and stromal cells. High tumor levels of ADAM12 mRNA were characteristic of the mesenchymal/desmoplastic molecular subtype of HGSOC, which is known to have the poorest prognosis. Thus, ADAM12 may be a useful biomarker of aggressive ovarian cancer for which standard treatment is not effective.
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Affiliation(s)
- Dong-Joo Cheon
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Andrew J Li
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA and
| | - Jessica A Beach
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA, Gradute Program in Biomedical Science and Translational Medicine and
| | - Ann E Walts
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Hang Tran
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jenny Lester
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Beth Y Karlan
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA and
| | - Sandra Orsulic
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA and
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26
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Berdel HO, Yin H, Liu JY, Grochowska K, Middleton C, Yanasak N, Abdelsayed R, Berdel WE, Mozaffari M, Yu JC, Baban B. Targeting serum glucocorticoid-regulated kinase-1 in squamous cell carcinoma of the head and neck: a novel modality of local control. PLoS One 2014; 9:e113795. [PMID: 25485633 PMCID: PMC4259465 DOI: 10.1371/journal.pone.0113795] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 10/30/2014] [Indexed: 11/19/2022] Open
Abstract
Purpose The inhibition of serum glucocorticoid-regulated kinase-1 (SGK-1) has been found to decrease growth of colon and prostate cancer cells. The purpose of this study is to evaluate the therapeutic effect of SGK-1 inhibition in head and neck squamous cell carcinoma (SCC). Experimental Design Human head and neck tumors (HTB41/43) were established in athymic mice. Growth rates between mice treated with vehicle (PBS) injection (group 1, n = 5), SGK-1 Inhibitor GSK 650394 (group 2, n = 6), systemic cisplatin (group 3, n = 6), and a combination of SGK-1 Inhibitor and cisplatin (group 4, n = 6) were compared using repeated measures one-way ANOVA with Newman-Keuls Multiple Comparison Test. Tumor cells were subsequently submitted to further analyses. Results At the end of the experiment mean tumor sizes were 122.33+/−105.86, 76.73+/−36.09, 94.52+/−75.92, and 25.76+/−14.89 mm2 (mean +/− SD) for groups 1 to 4. Groups 2 and 3 showed decreased tumor growth compared to controls (p<0.001). Group 4 displayed even greater growth suppression (p<0.0001). Importantly, group 4 fared better than group 3 (p<0.001). CD44 expression was reduced in group 2 (p<0.05), and to an even greater extent in groups 3 and 4 (p<0.0025). A trend towards reduction of HER 2 expression was noted in group 4. Conclusions SGK-1 inhibition suppresses tumor growth, and in combination with systemic cisplatin exceeds the effect of cisplatin alone. Decreased expression of CD44 and HER 2 implies depletion of tumor stem cells, and less tumorigenicity. SGK-1 inhibition represents a potential modality of local control for palliation in advanced cases.
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Affiliation(s)
- Henrik O. Berdel
- Georgia Regents University, Augusta, GA, United States of America
- Palmetto Health/University of South Carolina School of Medicine, Columbia, SC, United States of America
| | - Hongyu Yin
- Georgia Regents University, Augusta, GA, United States of America
- Plastic Surgery Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Peking, China
| | - Jun Yao Liu
- Georgia Regents University, Augusta, GA, United States of America
| | | | | | - Nathan Yanasak
- Georgia Regents University, Augusta, GA, United States of America
| | - Rafik Abdelsayed
- Georgia Regents University, Augusta, GA, United States of America
| | - Wolfgang E. Berdel
- Department of Medicine A, Hematology and Oncology, University Hospital Muenster, Muenster, Germany
| | | | - Jack C. Yu
- Georgia Regents University, Augusta, GA, United States of America
| | - Babak Baban
- Georgia Regents University, Augusta, GA, United States of America
- * E-mail:
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Zhao Z, Li R, Sha S, Wang Q, Mao W, Liu T. Targeting HER3 with miR-450b-3p suppresses breast cancer cells proliferation. Cancer Biol Ther 2014; 15:1404-12. [PMID: 25046105 DOI: 10.4161/cbt.29923] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
In breast cancer cells, heterodimerization of HER2 and HER3 plays important and dominant roles in the functionality and transformation of HER-mediated pathways, in particular the PI3K/Akt survival pathway. HER3 was considered as a major signaling hub in HER2-amplified cancers. Inhibition of HER3 expression may therefore represent a rational therapeutic approach to breast cancers where HER2/HER3-mediated signaling plays a role in tumorigenesis and progression. miRNAs exerts important roles in regulating gene expressions by binding to and repressing target mRNAs. Here we reported that miRNA-450b-3p inhibits HER3 expression by directly targeting 3' UTR of HER3 mRNA and represses the downstream signal transductions of HER family. Overexpression of miRNA-450b-3p in SKBR3 cells inhibits cells clonogenic potential and enhances their sensitivity to trastuzumab, a monoclonal antibody that binds to the HER2 receptor, or doxorubicin through repressing proliferative signal pathways mediated by HER3/HER2/PI3K/AKT. Furthermore, we found that breast cancer patients with tumors that demonstrating upregulated HER3 (> 2-fold) and downregulated miR-450b-3p (> 2-fold) expressions compared with the paired adjacent non-tumorous tissues showed significantly poorer overall survival (P<0.05). Our study identified miRNA-450b-3p as a new tumor repressor and also provided some evidences suggesting that downregulation of miR-450b-3p expression with concurrent overexpression of HER3 may serve as a prognostic biomarker for poor overall survival in breast cancer patients.
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Affiliation(s)
- Zhen Zhao
- Department of Oncology; The Affiliated Jiangyin Hospital of Southeast University Medical College; Wuxi, Jiangsu, PR China
| | - Rui Li
- Department of Hematology; the First People's Hospital of Yunnan Province; Kunming, Yunnan, PR China
| | - Sha Sha
- Department of Oncology; The Affiliated Jiangyin Hospital of Southeast University Medical College; Wuxi, Jiangsu, PR China
| | - Qiong Wang
- Department of Oncology; The Affiliated Jiangyin Hospital of Southeast University Medical College; Wuxi, Jiangsu, PR China
| | - Weidong Mao
- Department of Oncology; The Affiliated Jiangyin Hospital of Southeast University Medical College; Wuxi, Jiangsu, PR China
| | - Tao Liu
- Department of Oncology; The Affiliated Jiangyin Hospital of Southeast University Medical College; Wuxi, Jiangsu, PR China
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Rao VH, Vogel K, Yanagida JK, Marwaha N, Kandel A, Trempus C, Repertinger SK, Hansen LA. Erbb2 up-regulation of ADAM12 expression accelerates skin cancer progression. Mol Carcinog 2014; 54:1026-36. [PMID: 24798404 DOI: 10.1002/mc.22171] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 03/31/2014] [Accepted: 04/07/2014] [Indexed: 12/17/2022]
Abstract
Solar ultraviolet (UV) radiation can cause severe damage to the skin and is the primary cause of most skin cancer. UV radiation causes DNA damage leading to mutations and also activates the Erbb2/HER2 receptor through indirect mechanisms involving reactive oxygen species. We hypothesized that Erbb2 activation accelerates the malignant progression of UV-induced skin cancer. Following the induction of benign squamous papillomas by UV exposure of v-ras(Ha) transgenic Tg.AC mice, mice were treated topically with the Erbb2 inhibitor AG825 and tumor progression monitored. AG825 treatment reduced tumor volume, increased tumor regression, and delayed the development of malignant squamous cell carcinoma (SCC). Progression to malignancy was associated with increased Erbb2 and ADAM12 (A Disintegin And Metalloproteinase 12) transcripts and protein, while inhibition of Erbb2 blocked the increase in ADAM12 message upon malignant progression. Similarly, human SCC and SCC cell lines had increased ADAM12 protein and transcripts when compared to normal controls. To determine whether Erbb2 up-regulation of ADAM12 contributed to malignant progression of skin cancer, Erbb2 expression was modulated in cultured SCC cells using forced over-expression or siRNA targeting, demonstrating up-regulation of ADAM12 by Erbb2. Furthermore, ADAM12 transfection or siRNA targeting revealed that ADAM12 increased both the migration and invasion of cutaneous SCC cells. Collectively, these results suggest Erbb2 up-regulation of ADAM12 as a novel mechanism contributing to the malignant progression of UV-induced skin cancer. Inhibition of Erbb2/HER2 reduced tumor burden, increased tumor regression, and delayed the progression of benign skin tumors to malignant SCC in UV-exposed mice. Inhibition of Erbb2 suppressed the increase in metalloproteinase ADAM12 expression in skin tumors, which in turn increased migration and tumor cell invasiveness.
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Affiliation(s)
- Velidi H Rao
- Department of Biomedical Sciences, Creighton University, Omaha, Nebraska
| | - Kristen Vogel
- Department of Biomedical Sciences, Creighton University, Omaha, Nebraska
| | - Jodi K Yanagida
- Department of Biomedical Sciences, Creighton University, Omaha, Nebraska
| | - Nitin Marwaha
- Department of Biomedical Sciences, Creighton University, Omaha, Nebraska
| | - Amrit Kandel
- Department of Biomedical Sciences, Creighton University, Omaha, Nebraska
| | - Carol Trempus
- Laboratory of Respiratory Biology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | | | - Laura A Hansen
- Department of Biomedical Sciences, Creighton University, Omaha, Nebraska
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29
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Qi Y, Duhachek-Muggy S, Li H, Zolkiewska A. Phenotypic diversity of breast cancer-related mutations in metalloproteinase-disintegrin ADAM12. PLoS One 2014; 9:e92536. [PMID: 24651654 PMCID: PMC3961381 DOI: 10.1371/journal.pone.0092536] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 02/23/2014] [Indexed: 12/29/2022] Open
Abstract
Six different somatic missense mutations in the human ADAM12 gene have been identified so far in breast cancer. Five of these mutations involve highly conserved residues in the extracellular domain of the transmembrane ADAM12-L protein. Two of these extracellular mutations, D301H and G479E, have been previously characterized in the context of mouse ADAM12. Three other mutations, T596A, R612Q, and G668A, have been reported more recently, and their effects on ADAM12-L protein structure/function are not known. Here, we show that ADAM12-L bearing the G668A mutation is largely retained in the endoplasmic reticulum in its nascent, full-length form, with an intact N-terminal pro-domain. The T596A and R612Q mutants are efficiently trafficked to the cell surface and proteolytically processed to remove their pro-domains. However, the T596A mutant shows decreased catalytic activity at the cell surface, while the R612Q mutant is fully active and comparable to the wild-type ADAM12-L. The D301H and G479E mutants, consistent with the corresponding D299H and G477E mutants of mouse ADAM12 described earlier, are not proteolytically processed and do not exhibit catalytic activity at the cell surface. Among all six breast cancer-associated mutations in ADAM12-L, mutations that preserve the activity - R612Q and L792F - occur in triple-negative breast cancers, while loss-of-function mutations - D301H, G479E, T596A, and G668A - are found in non-triple negative cancers. This apparent association between the catalytic activity of the mutants and the type of breast cancer supports a previously postulated role of an active ADAM12-L in the triple negative breast cancer disease.
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Affiliation(s)
- Yue Qi
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas, United States of America
| | - Sara Duhachek-Muggy
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas, United States of America
| | - Hui Li
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas, United States of America
| | - Anna Zolkiewska
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas, United States of America
- * E-mail:
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30
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Gandhi MD, Agulnik M. Targeted treatment of head and neck squamous-cell carcinoma: potential of lapatinib. Onco Targets Ther 2014; 7:245-51. [PMID: 24611017 PMCID: PMC3928467 DOI: 10.2147/ott.s46933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Squamous-cell cancer of the head and neck is a heterogeneous malignancy with treatment predicated on a multimodality therapy involving surgery, chemotherapy, and radiation. However, this approach results in durable responses in only a subset of patients, and is associated with significant toxicity. In advanced disease, multi-agent platinum-based chemotherapy produces only modest improvements in survival. Increased insight into tumor biology has demonstrated several critical oncogenic pathways offering prospects for targeted therapy that may improve upon the existing treatment strategies. The epidermal growth factor receptor is one such target, and directed therapy with the monoclonal antibody cetuximab has been extensively studied. Lapatinib is an oral agent that targets multiple transmembrane receptors within the epidermal growth factor receptor family, and offers a promising new approach to treatment. This paper reviews the rationale for and clinical activity of lapatinib in squamous-cell cancer of the head and neck.
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Affiliation(s)
- Mitul D Gandhi
- Division of Hematology and Oncology, Robert H Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Mark Agulnik
- Division of Hematology and Oncology, Robert H Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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31
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Rao VH, Kansal V, Stoupa S, Agrawal DK. MMP-1 and MMP-9 regulate epidermal growth factor-dependent collagen loss in human carotid plaque smooth muscle cells. Physiol Rep 2014; 2:e00224. [PMID: 24744893 PMCID: PMC3966234 DOI: 10.1002/phy2.224] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 01/13/2014] [Indexed: 11/11/2022] Open
Abstract
Mechanisms underlying the rupture of atherosclerotic plaque, a crucial factor in the development of myocardial infarction and stroke, are not well defined. Here, we examined the role of epidermal growth factor (EGF)‐mediated matrix metalloproteinases (MMP) on the stability of interstitial collagens in vascular smooth muscle cells (VSMCs) isolated from carotid endarterectomy tissues of symptomatic and asymptomatic patients with carotid stenosis. VSMCs isolated from the carotid plaques of both asymptomatic and symptomatic patients were treated with EGF. The MMP‐9 activity was quantified by gelatin zymography and the analysis of mRNA transcripts and protein for MMP‐9, MMP‐1, EGFR and collagen types I, Col I(α1) and collagen type III, Col III(α1) were analyzed by qPCR and immunofluorescence, respectively. The effect of EGF treatment to increase MMP‐9 activity and mRNA transcripts for MMP‐9, MMP‐1, and EGFR and to decrease mRNA transcripts for Col I(α1) and Col III(α1) was threefold to fourfold greater in VSMCs isolated from the carotid plaques of symptomatic than asymptomatic patients. Inhibitors of EGFR (AG1478) and a small molecule inhibitor of MMP‐9 decreased the MMP9 expression and upregulated Col I(α1) and Col III(α1) in EGF‐treated VSMCs of both groups. Additionally, the magnitude in decreased MMP‐9 mRNA and increased Col I(α1) and Col III(α1) due to knockdown of MMP‐9 gene with siRNA in EGF‐treated VSMCs was significantly greater in the symptomatic group than the asymptomatic group. Thus, a selective blockade of both EGFR and MMP‐9 may be a novel strategy and a promising target for stabilizing vulnerable plaques in patients with carotid stenosis. This report described the underlying mechanisms by which MMP‐1 and MMP‐9 induced by EFGR activation decreases the interstitial collagens and this could result in plaque instability in patients with carotid stenosis. Thus, selective blockade of EGFR and/or MMP‐9 may be a novel strategy and a promising target to stabilize atherosclerotic plaques and thus decreases morbidity and mortality.
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Affiliation(s)
- Velidi H Rao
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, 68178, Nebraska
| | - Vikash Kansal
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, 68178, Nebraska
| | - Samantha Stoupa
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, 68178, Nebraska
| | - Devendra K Agrawal
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, 68178, Nebraska ; Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, 68178, Nebraska
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Schramm HM. Should EMT of Cancer Cells Be Understood as Epithelial-Myeloid Transition? J Cancer 2014; 5:125-32. [PMID: 24494030 PMCID: PMC3909767 DOI: 10.7150/jca.8242] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 01/02/2014] [Indexed: 12/11/2022] Open
Abstract
Cancer cells express epithelial markers, and when progressing in malignancy they may express markers of the mesenchymal cell type. Therefore an epithelial-mesenchymal transition of the cancer cells is assumed. However the mesenchymal markers can equally well be interpreted as myeloid markers since they are common in both types of cell lineages. Moreover, cancer cells express multiple specific markers of the myeloid lineages thus giving rise to the hypothesis that the transition of cancer cells may be from epithelial to myeloid cells and not to mesenchymal cells. This interpretation would better explain why cancer cells, often already in their primary cancer site, frequently show properties common to those of macrophages, platelets and pre-/osteoclasts.
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Affiliation(s)
- Henning M. Schramm
- Institute Hiscia, Society for Cancer Research, CH-4144 Arlesheim/Switzerland
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Aghababaei M, Perdu S, Irvine K, Beristain AG. A disintegrin and metalloproteinase 12 (ADAM12) localizes to invasive trophoblast, promotes cell invasion and directs column outgrowth in early placental development. Mol Hum Reprod 2013; 20:235-49. [PMID: 24243624 DOI: 10.1093/molehr/gat084] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
During pregnancy, stromal- and vascular-remodeling trophoblasts serve critical roles in directing placental development acquiring pro-invasive characteristics. The A Disintegrin and Metalloproteinase (ADAM) family of multifunctional proteins direct cellular processes across multiple organ systems via their intrinsic catalytic, cell adhesive and intracellular signaling properties. ADAM12, existing as two distinct splice variants (ADAM12L and ADAM12S), is highly expressed in the human placenta and promotes cell migration and invasion in several tumor cell lines; however, its role in trophoblast biology is unknown. In this study, ADAM12 was localized to anchoring trophoblast columns in first trimester placentas and to highly invasive extracellular matrix-degrading trophoblasts in placental villous explants. The importance of ADAM12 in directing trophoblast invasion was tested using loss-of and gain-of-function strategies, where siRNA-directed knockdown of ADAM12 inhibited trophoblast cell invasion while over-expression promoted migration and invasion in two trophoblastic cell models. In placental villous explant cultures, siRNA-directed loss of ADAM12 significantly dampened trophoblast column outgrowth. Additionally, we provide functional evidence for the ADAM12S variant in promoting trophoblast invasion and column outgrowth through a mechanism requiring its catalytic activity. This is the first study to assign a function for ADAM12 in trophoblast biology, where ADAM12 may play a central role regulating the behavior of invasive trophoblast subsets in early pregnancy. This study also underlines the importance of ADAM12L and ADAM12S in directing cell motility in normal developmental processes outside of cancer, specifically highlighting a potentially important function of ADAM12S in directing early placental development.
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Affiliation(s)
- M Aghababaei
- Department of Obstetrics and Gynecology, The University of British Columbia, Vancouver, Canada
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Pollheimer J, Fock V, Knöfler M. Review: the ADAM metalloproteinases - novel regulators of trophoblast invasion? Placenta 2013; 35 Suppl:S57-63. [PMID: 24231445 DOI: 10.1016/j.placenta.2013.10.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 10/21/2013] [Accepted: 10/22/2013] [Indexed: 01/11/2023]
Abstract
During pregnancy, the extravillous trophoblast (EVT) invades the maternal decidua and remodels spiral arteries reaching as far as the inner third of the myometrium. This process is mandatory to a successful pregnancy since EVTs regulate spiral artery remodeling to achieve maximal vasodilation and thus an adequate nutrient supply to the embryo or communicate with maternal leukocyte populations to guarantee acceptance of the allogeneic conceptus. To achieve this, EVTs undergo a remarkable and unique differentiation process, which yields different phenotypes such as proliferative cell column trophoblasts or growth-arrested, invasive interstitial or endovascular cytotrophoblasts. Matrix metalloproteinases have long been seen as imperative to trophoblast invasion because of their ability to degrade extracellular matrix and therefore allow cellular movement in foreign tissues. However, global gene expression analysis reveals that EVTs also express various members of distintegrin and metalloproteinases (ADAMs). These proteases are associated with the process of proteolytic shedding and activation of surface proteins including growth factors, cytokines, receptors and their ligands rather than extracellular matrix breakdown. While ADAM12 has been associated with chromosomal abnormalities as well as preeclampsia or intrauterine fetal growth restriction, the function of ADAMs in trophoblasts remains elusive. In this article, we review the diverse invasive trophoblast phenotypes, EVT-associated protease systems and related open questions. In addition, we examine recent information about relevant ADAM members and their putative implications for EVT biology.
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Affiliation(s)
- J Pollheimer
- Department of Obstetrics and Fetal-Maternal Medicine, Reproductive Biology Unit, Medical University of Vienna, Austria.
| | - V Fock
- Department of Obstetrics and Fetal-Maternal Medicine, Reproductive Biology Unit, Medical University of Vienna, Austria
| | - M Knöfler
- Department of Obstetrics and Fetal-Maternal Medicine, Reproductive Biology Unit, Medical University of Vienna, Austria
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Duhachek-Muggy S, Li H, Qi Y, Zolkiewska A. Alternative mRNA splicing generates two distinct ADAM12 prodomain variants. PLoS One 2013; 8:e75730. [PMID: 24116070 PMCID: PMC3792144 DOI: 10.1371/journal.pone.0075730] [Citation(s) in RCA: 7] [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: 06/21/2013] [Accepted: 08/19/2013] [Indexed: 11/21/2022] Open
Abstract
Human ADAM12, transcript variant 1 (later on referred to as Var-1b), present in publicly available databases contains the sequence 5′-GTAATTCTG-3′ at the nucleotide positions 340–348 of the coding region, at the 3′ end of exon 4. The translation product of this variant, ADAM12-Lb, includes the three amino acid motif 114VIL116 in the prodomain. This motif is not conserved in ADAM12 from different species and is not present in other human ADAMs. Currently, it is not clear whether a shorter variant, Var-1a, encoding the protein version without the 114VIL116 motif, ADAM12-La, is expressed in human. In this work, we have established that human mammary epithelial cells and breast cancer cells express both Var-1a and Var-1b transcripts. Importantly, the proteolytic processing and intracellular trafficking of the corresponding ADAM12-La and ADAM12-Lb proteins are different. While ADAM12-La is cleaved and trafficked to the cell surface in a manner similar to ADAM12 in other species, ADAM12-Lb is retained in the ER and is not proteolytically processed. Furthermore, the relative abundance of ADAM12-La and ADAM12-Lb proteins detected in several breast cancer cell lines varies significantly. We conclude that the canonical form of transmembrane ADAM12 is represented by Var-1a/ADAM12-La, rather than Var-1b/ADAM12-Lb currently featured in major sequence databases.
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Affiliation(s)
- Sara Duhachek-Muggy
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas, United States of America
| | - Hui Li
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas, United States of America
| | - Yue Qi
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas, United States of America
| | - Anna Zolkiewska
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas, United States of America
- * E-mail:
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Volinsky N, Kholodenko BN. Complexity of receptor tyrosine kinase signal processing. Cold Spring Harb Perspect Biol 2013; 5:a009043. [PMID: 23906711 DOI: 10.1101/cshperspect.a009043] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Our knowledge of molecular mechanisms of receptor tyrosine kinase (RTK) signaling advances with ever-increasing pace. Yet our understanding of how the spatiotemporal dynamics of RTK signaling control specific cellular outcomes has lagged behind. Systems-centered experimental and computational approaches can help reveal how overlapping networks of signal transducers downstream of RTKs orchestrate specific cell-fate decisions. We discuss how RTK network regulatory structures, which involve the immediate posttranslational and delayed transcriptional controls by multiple feed forward and feedback loops together with pathway cross talk, adapt cells to the combinatorial variety of external cues and conditions. This intricate network circuitry endows cells with emerging capabilities for RTK signal processing and decoding. We illustrate how mathematical modeling facilitates our understanding of RTK network behaviors by unraveling specific systems properties, including bistability, oscillations, excitable responses, and generation of intricate landscapes of signaling activities.
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Affiliation(s)
- Natalia Volinsky
- Systems Biology Ireland, University College Dublin, Belfield, Dublin 4, Ireland
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Nyren-Erickson EK, Jones JM, Srivastava DK, Mallik S. A disintegrin and metalloproteinase-12 (ADAM12): function, roles in disease progression, and clinical implications. Biochim Biophys Acta Gen Subj 2013; 1830:4445-55. [PMID: 23680494 DOI: 10.1016/j.bbagen.2013.05.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 05/03/2013] [Accepted: 05/06/2013] [Indexed: 12/18/2022]
Abstract
BACKGROUND A disintegrin and metalloproteinase-12 (ADAM12) is a member of the greater ADAM family of enzymes: these are multifunctional, generally membrane-bound, zinc proteases for which there are forty genes known (21 of these appearing in humans). ADAM12 has been implicated in the pathogenesis of various cancers, liver fibrogenesis, hypertension, and asthma, and its elevation or decrease in human serum has been linked to these and other physiological/pathological conditions. SCOPE In this review, we begin with a brief overview of the ADAM family of enzymes and protein structure. We then discuss the role of ADAM12 in the progression and/or diagnosis of various disease conditions, and we will conclude with an exploration of currently known natural and synthetic inhibitors. MAJOR CONCLUSION ADAM12 has potential to emerge as a successful drug target, although targeting the metalloproteinase domain with any specificity will be difficult to achieve due to structural similarity between the members of the ADAM and MMP family of enzymes. Overall, more research is required to establish ADAM12 being as a highly desirable biomarker and drug target of different diseases, and their selective inhibitors as potential therapeutic agents. GENERAL SIGNIFICANCE Given the appearance of elevated levels of ADAM12 in various diseases, particularly breast cancer, our understanding of this enzyme both as a biomarker and a potential drug target could help make significant inroads into both early diagnosis and treatment of disease.
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Affiliation(s)
- Erin K Nyren-Erickson
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND 58108-6050, USA
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Kogure M, Takawa M, Cho HS, Toyokawa G, Hayashi K, Tsunoda T, Kobayashi T, Daigo Y, Sugiyama M, Atomi Y, Nakamura Y, Hamamoto R. Deregulation of the histone demethylase JMJD2A is involved in human carcinogenesis through regulation of the G(1)/S transition. Cancer Lett 2013; 336:76-84. [PMID: 23603248 DOI: 10.1016/j.canlet.2013.04.009] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 04/08/2013] [Accepted: 04/10/2013] [Indexed: 01/11/2023]
Abstract
Although a number of JmjC-containing histone demethylases have been identified and biochemically characterized, pathological roles of their dysfunction in human disease such as cancer have not been well elucidated. Here, we report the Jumonji domain containing 2A (JMJD2A) is integral to proliferation of cancer cells. Quantitative real-time PCR analysis revealed higher expression of JMJD2A in clinical bladder cancer tissues than in corresponding non-neoplastic tissues (P<0.0001). Immunohistochemical analysis also showed positive staining for JMJD2A in 288 out of 403 lung cancer cases, whereas no staining was observed in lung normal tissues. Suppression of JMJD2A expression in lung and bladder cancer cells overexpressing this gene, using specific siRNAs, inhibited incorporation of BrdU and resulted in significant suppression of cell growth. Furthermore, JMJD2A appears to directly transactivate the expression of some tumor associated proteins including ADAM12 through the regulation of histone H3K9 methylation. As expression levels of JMJD2A are low in normal tissues, it may be feasible to develop specific inhibitors targeting the enzyme as anti-tumor agents which should have a minimal risk of adverse reaction.
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Affiliation(s)
- Masaharu Kogure
- Laboratory of Genome Technology, Human Genome Center, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Tokyo 108-8639, Japan
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Shang C, Lu YM, Meng LR. MicroRNA-125b down-regulation mediates endometrial cancer invasion by targeting ERBB2. Med Sci Monit 2012; 18:BR149-55. [PMID: 22460089 PMCID: PMC3560825 DOI: 10.12659/msm.882617] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Background MicroRNAs (miRNAs) are small non-coding nucleotides that regulate mRNA stability and protein expression by imperfect base pairing with the 3′-untranslated region (3′UTR) of target mRNAs. Many miRNAs have been documented to be aberrantly expressed in human cancers, but the role of miRNAs in endometrioid endometrial cancer (EEC) remains poorly understood. The objective of this study was to investigate the effect of miR-125b on EEC development and to explore its molecular mechanism in EEC carcinogenesis. Material/Methods Real-time quantitative PCR was applied to evaluate the expression level of miRNA-125b in EEC and normal endometrium (NE) samples. The invasion ability of miR-125b in EEC HEC1B cells was analyzed by Transwell assay after pre-miR-125b or anti-miR-125b transfection. For the invasion mechanism analysis of miR-125b on HEC1B cells, miRBase, TargetScan, miRanda and PicTar were used to predict the possible target gene of miR-125b. Luciferase activities assay, cotransfection and Western blot were used to reveal that the predicted target genes of miR-125b were direct and specific. RNA interference technology was used to confirm that the invasion inhibition of miR-125b was directly induced by ERBB2. Results Our study showed that miR-125b was down-regulated in human EEC specimens compared to that in NC specimens. Over-expression of miR-125b in HEC1B cells inhibited EEC invasion and this inhibitory effect on HEC1B cells could be restored by miR-125b knock down. Mechanism analysis revealed that ERBB2 was a direct and specific target of miR-125b. The inhibitory effect on EEC cell invasion was mediated by miR-125b inhibition of the translation of a proto-oncogene, ERBB2. Conclusions Aberrantly expressed miR-125b contributes to HEC1B cells invasion partly through directly down-regulating ERBB2 protein expression in EEC. This miRNA signature offers a novel potential therapeutic strategy for EEC.
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Affiliation(s)
- Chao Shang
- Department of Neurobiology, China Medical University, Shenyang, PR China
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