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Wang D, Madunić K, Mayboroda OA, Lageveen-Kammeijer GSM, Wuhrer M. (Sialyl)Lewis Antigen Expression on Glycosphingolipids, N-, and O-Glycans in Colorectal Cancer Cell Lines is Linked to a Colon-Like Differentiation Program. Mol Cell Proteomics 2024; 23:100776. [PMID: 38670309 PMCID: PMC11128521 DOI: 10.1016/j.mcpro.2024.100776] [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: 11/03/2023] [Revised: 04/03/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024] Open
Abstract
Alterations in the glycomic profile are a hallmark of cancer, including colorectal cancer (CRC). While, the glycosylation of glycoproteins and glycolipids has been widely studied for CRC cell lines and tissues, a comprehensive overview of CRC glycomics is still lacking due to the usage of different samples and analytical methods. In this study, we compared glycosylation features of N-, O-glycans, and glycosphingolipid glycans for a set of 22 CRC cell lines, all measured by porous graphitized carbon nano-liquid chromatography-tandem mass spectrometry. An overall, high abundance of (sialyl)Lewis antigens for colon-like cell lines was found, while undifferentiated cell lines showed high expression of H blood group antigens and α2-3/6 sialylation. Moreover, significant associations of glycosylation features were found between the three classes of glycans, such as (sialyl)Lewis and H blood group antigens. Integration of the datasets with transcriptomics data revealed positive correlations between (sialyl)Lewis antigens, the corresponding glycosyltransferase FUT3 and transcription factors CDX1, ETS, HNF1/4A, MECOM, and MYB. This indicates a possible role of these transcription factors in the upregulation of (sialyl)Lewis antigens, particularly on glycosphingolipid glycans, via FUT3/4 expression in colon-like cell lines. In conclusion, our study provides insights into the possible regulation of glycans in CRC and can serve as a guide for the development of diagnostic and therapeutic biomarkers.
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Affiliation(s)
- Di Wang
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands
| | - Katarina Madunić
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands; Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen, Denmark
| | - Oleg A Mayboroda
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands
| | - Guinevere S M Lageveen-Kammeijer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands; Division of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands.
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Wu Y, Kang K, Han C, Wang L, Wang Z, Zhao A. Single-Cell Profiling Comparisons of Tumor Microenvironment between Primary Advanced Lung Adenocarcinomas and Brain Metastases and Machine Learning Algorithms in Predicting Immunotherapeutic Responses. Biomolecules 2023; 13:185. [PMID: 36671569 PMCID: PMC9855438 DOI: 10.3390/biom13010185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/07/2023] [Accepted: 01/15/2023] [Indexed: 01/18/2023] Open
Abstract
Brain metastasis (BM) occurs commonly in patients with lung adenocarcinomas. Limited evidence indicates safety and efficacy of immunotherapy for this metastatic tumor, though immune checkpoint blockade has become the front-line treatment for primary advanced non-small cell lung cancer. We aim to comprehensively compare tumor microenvironments (TME) between primary tumors (PT) and BM at single-cell resolution. Single-cell RNA transcriptomics from tumor samples of PT (N = 23) and BM (N = 16) and bulk sequencing data were analyzed to explore potential differences in immunotherapeutic efficacy between PT and BM of lung adenocarcinomas. Multiple machine learning algorithms were used to develop and validate models that predict responses to immunotherapy using the external cohorts. We found obviously less infiltration of immune cells in BM than PT, characterized specifically by deletion of anti-cancer CD8+ Trm cells and more dysfunctional CD8+ Tem cells in BM tumors. Meanwhile, macrophages and dendritic cells within BM demonstrated more pro-tumoral and anti-inflammatory effects, represented by distinct distribution and function of SPP1+ and C1Qs+ tumor-associated microphages, and inhibited antigen presentation capacity and HLA-I gene expression, respectively. Besides, we also found the lack of inflammatory-like CAFs and enrichment of pericytes within BM tumors, which may be critical factors in shaping inhibitory TME. Cell communication analysis further revealed mechanisms of the immunosuppressive effects associated with the activation of some unfavorable pathways, such as TGFβ signaling, highlighting the important roles of stromal cells in the anti-inflammatory microenvironment, especially specific pericytes. Furthermore, pericyte-related genes were identified to optimally predict immunotherapeutic responses by machine learning models with great predictive performance. Overall, various factors contribute to the immunosuppressive TME within BM tumors, represented by the lack of critical anti-cancer immune cells. Meanwhile, pericytes may help shape the TME and targeting the associated mechanisms may enhance immunotherapy efficacy for BM tumors in patients with lung adenocarcinomas.
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Affiliation(s)
- Yijun Wu
- Department of Thoracic Oncology, Cancer Center, and Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kai Kang
- Department of Thoracic Oncology, Cancer Center, and Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chang Han
- Department of Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Li Wang
- Department of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhile Wang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ailin Zhao
- Department of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China
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3
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Wu J, Liu X, Reeser JAW, Trimboli AJ, Pécot T, Sizemore GM, Naidu SK, Fernandez SA, Yu L, Hallett M, Park M, Leone GW, Hildreth BE, Ostrowski MC. Stromal p53 Regulates Breast Cancer Development, the Immune Landscape, and Survival in an Oncogene-Specific Manner. Mol Cancer Res 2022; 20:1233-1246. [PMID: 35533313 PMCID: PMC9357052 DOI: 10.1158/1541-7786.mcr-21-0960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/16/2022] [Accepted: 05/04/2022] [Indexed: 02/07/2023]
Abstract
Coevolution of tumor cells and adjacent stromal elements is a key feature during tumor progression; however, the precise regulatory mechanisms during this process remain unknown. Here, we show stromal p53 loss enhances oncogenic KrasG12D, but not ErbB2, driven tumorigenesis in murine mammary epithelia. Stroma-specific p53 deletion increases both epithelial and fibroblast proliferation in mammary glands bearing the KrasG12D oncogene in epithelia, while concurrently increasing DNA damage and/or DNA replication stress and decreasing apoptosis in the tumor cells proper. Normal epithelia was not affected by stromal p53 deletion. Tumors with p53-null stroma had a significant decrease in total, cytotoxic, and regulatory T cells; however, there was a significant increase in myeloid-derived suppressor cells, total macrophages, and M2-polarized tumor-associated macrophages, with no impact on angiogenesis or connective tissue deposition. Stroma-specific p53 deletion reprogrammed gene expression in both fibroblasts and adjacent epithelium, with p53 targets and chemokine receptors/chemokine signaling pathways in fibroblasts and DNA replication, DNA damage repair, and apoptosis in epithelia being the most significantly impacted biological processes. A gene cluster in p53-deficient mouse fibroblasts was negatively associated with patient survival when compared with two independent datasets. In summary, stroma-specific p53 loss promotes mammary tumorigenesis in an oncogene-specific manner, influences the tumor immune landscape, and ultimately impacts patient survival. IMPLICATIONS Expression of the p53 tumor suppressor in breast cancer tumor stroma regulates tumorigenesis in an oncogene-specific manner, influences the tumor immune landscape, and ultimately impacts patient survival.
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Affiliation(s)
- Jinghai Wu
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH,Department of Radiation Oncology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH
| | - Xin Liu
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH
| | - Julie A. Wallace Reeser
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH
| | - Anthony J. Trimboli
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH
| | - Thierry Pécot
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH,Biosit – UMS CNRS 3480, Inserm 018, University of Rennes 1, France
| | - Gina M. Sizemore
- Department of Radiation Oncology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH
| | - Shan K. Naidu
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH
| | - Soledad A. Fernandez
- Department of Biomedical Informatics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH
| | - Lianbo Yu
- Department of Biomedical Informatics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH
| | - Michael Hallett
- Department of Biology, Concordia University, Montréal, QC,Department of Biochemistry and Rosalind and Morris Goodman Cancer Centre, McGill University, Montréal, QC
| | - Morag Park
- Department of Biochemistry and Rosalind and Morris Goodman Cancer Centre, McGill University, Montréal, QC
| | - Gustavo W. Leone
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH,Department of Biochemistry and Cancer Center, Medical College of Wisconsin, Wauwatosa, WI,Co-Corresponding Authors: Michael C. Ostrowski, Hollings Cancer Center, 86 Jonathon Lucas Street, Charleston, SC 29425, , Phone: 843-792-5012; Blake E. Hildreth III, Shelby Biomedical Research Building, 1825 University Blvd, Birmingham, AL 35233, , Phone: 205-934-8697, Gustavo Leone, Clinical Cancer Center, Froedtert Hospital Campus, 8800 W. Doyne Ave, Milwaukee, WI 53226, , Phone: 414-335-1000
| | - Blake E. Hildreth
- Department of Pathology and O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL,Co-Corresponding Authors: Michael C. Ostrowski, Hollings Cancer Center, 86 Jonathon Lucas Street, Charleston, SC 29425, , Phone: 843-792-5012; Blake E. Hildreth III, Shelby Biomedical Research Building, 1825 University Blvd, Birmingham, AL 35233, , Phone: 205-934-8697, Gustavo Leone, Clinical Cancer Center, Froedtert Hospital Campus, 8800 W. Doyne Ave, Milwaukee, WI 53226, , Phone: 414-335-1000
| | - Michael C. Ostrowski
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH,Department of Biochemistry and Molecular Biology and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC,Co-Corresponding Authors: Michael C. Ostrowski, Hollings Cancer Center, 86 Jonathon Lucas Street, Charleston, SC 29425, , Phone: 843-792-5012; Blake E. Hildreth III, Shelby Biomedical Research Building, 1825 University Blvd, Birmingham, AL 35233, , Phone: 205-934-8697, Gustavo Leone, Clinical Cancer Center, Froedtert Hospital Campus, 8800 W. Doyne Ave, Milwaukee, WI 53226, , Phone: 414-335-1000
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Abstract
Decades of research have concluded that disruptions to Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) have profound effects on cancer progression. However, as our understanding of the tumor stroma has evolved, we can appreciate that disruptions to tumor suppressors such as PTEN should not be studied solely in an epithelial context. Inactivation of PTEN in the stroma is associated with worse outcomes in human cancers, therefore, it is important to understand activities regulated downstream of PTEN in stromal compartments. Studies reviewed herein provide evidence for important mechanistic targets downstream of PTEN signaling in cancer-associated fibroblasts (CAFs), a major component of the tumor stroma. We also discuss the potential clinical implications for these findings.
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Affiliation(s)
- Julia E Lefler
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, United States; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, United States
| | - Cara Seward
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, United States; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, United States
| | - Michael C Ostrowski
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, United States; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, United States.
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Sanaei MJ, Razi S, Pourbagheri-Sigaroodi A, Bashash D. The PI3K/Akt/mTOR pathway in lung cancer; oncogenic alterations, therapeutic opportunities, challenges, and a glance at the application of nanoparticles. Transl Oncol 2022; 18:101364. [PMID: 35168143 PMCID: PMC8850794 DOI: 10.1016/j.tranon.2022.101364] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/15/2022] [Accepted: 02/05/2022] [Indexed: 12/20/2022] Open
Abstract
Lung cancer is the most common and deadliest human malignancies. The alterations of PI3K/Akt/mTOR pathway are related to lung cancer progression. PI3K axis regulates proliferation, apoptosis, metastasis, and EMT of lung cancer. Agents inhibiting components of PI3K axis diminish lung tumor growth and invasion. Low efficacy and off-target toxicity could be improved by nanoparticle application.
Lung cancer is the leading cause of cancer-related mortality worldwide. Although the PI3K/Akt/mTOR signaling pathway has recently been considered as one of the most altered molecular pathways in this malignancy, few articles reviewed the task. In this review, we aim to summarize the original data obtained from international research laboratories on the oncogenic alterations in each component of the PI3K/Akt/mTOR pathway in lung cancer. This review also responds to questions on how aberrant activation in this axis contributes to uncontrolled growth, drug resistance, sustained angiogenesis, as well as tissue invasion and metastatic spread. Besides, we provide a special focus on pharmacologic inhibitors of the PI3K/Akt/mTOR axis, either as monotherapy or in a combined-modal strategy, in the context of lung cancer. Despite promising outcomes achieved by using these agents, however, the presence of drug resistance as well as treatment-related adverse events is the other side of the coin. The last section allocates a general overview of the challenges associated with the inhibitors of the PI3K pathway in lung cancer patients. Finally, we comment on the future research aspects, especially in which nano-based drug delivery strategies might increase the efficacy of the therapy in this malignancy.
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6
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Li Z, Ning F, Wang C, Yu H, Ma Q, Sun Y. Normalization of the tumor microvasculature based on targeting and modulation of the tumor microenvironment. NANOSCALE 2021; 13:17254-17271. [PMID: 34651623 DOI: 10.1039/d1nr03387e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Angiogenesis is an essential process for tumor development. Owing to the imbalance between pro- and anti-angiogenic factors, the tumor vasculature possesses the characteristics of tortuous, hyperpermeable vessels and compressive force, resulting in a reduction in the effect of traditional chemotherapy and radiotherapy. Anti-angiogenesis has emerged as a promising strategy for cancer treatment. Tumor angiogenesis, however, has been proved to be a complex process in which the tumor microenvironment (TME) plays a vital role in the initiation and development of the tumor microvasculature. The host stromal cells in the TME, such as cancer associated fibroblasts (CAFs), tumor associated macrophages (TAMs) and Treg cells, contribute to angiogenesis. Furthermore, the abnormal metabolic environment, such as hypoxia and acidosis, leads to the up-regulated expression of angiogenic factors. Indeed, normalization of the tumor microvasculature via targeting and modulating the TME has become a promising strategy for anti-angiogenesis and anti-tumor therapy. In this review, we summarize the abnormalities of the tumor microvasculature, tumor angiogenesis induced by an abnormal metabolic environment and host stromal cells, as well as drug delivery therapies to restore the balance between pro- and anti-angiogenic factors by targeting and normalizing the tumor vasculature in the TME.
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Affiliation(s)
- Zhipeng Li
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266021, China.
| | - Fang Ning
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266021, China.
| | - Changduo Wang
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266021, China.
| | - Hongli Yu
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266021, China.
| | - Qingming Ma
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266021, China.
| | - Yong Sun
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266021, China.
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7
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Wang T, Tian K, Ji X, Song F. A 6 transcription factors-associated nomogram predicts the recurrence-free survival of thyroid papillary carcinoma. Medicine (Baltimore) 2021; 100:e27308. [PMID: 34622829 PMCID: PMC8500572 DOI: 10.1097/md.0000000000027308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/06/2021] [Indexed: 01/05/2023] Open
Abstract
Various researches demonstrated that transcription factors (TFs) played a crucial role in the progression and prognosis of cancer. However, few studies indicated that TFs were independent biomarkers for the prognosis of thyroid papillary carcinoma (TPC). Our aim was to establish and validate a novel TF signature for the prediction of TPC patients' recurrence-free survival (RFS) from The Cancer Genome Atlas (TCGA) database to improve the prediction of survival in TPC patients.The genes expression data and corresponding clinical information for TPC were obtained from TCGA database. In total, 722 TFs and 545 TPC patients with eligible clinical information were determined to build a novel TF signature. All TFs were included in a univariate Cox regression model. Then, the least absolute shrinkage and selection operator Cox regression model was employed to identify candidate TFs relevant to TPC patients' RFS. Finally, multivariate Cox regression was conducted via the candidate TFs for the selection of the TF signatures in the RFS assessment of TPC patients.We identified 6 TFs that were related to TPC patients' RFS. Receiver operating characteristic analysis was performed in training, validation, and whole datasets, we verified the high capacity of the 6-TF panel for predicting TPC patients' RFS (AUC at 1, 3, and 5 years were 0.880, 0.934, and 0.868, respectively, in training dataset; 0.760, 0.737, and 0.726, respectively, in validation dataset; and 0.777, 0.776, and 0.761, respectively, in entire dataset). The result of Kaplan-Meier analysis suggested that the TPC patients with low scores had longer RFS than the TPC patients with high score (P = .003). A similar outcome was displayed in the validation dataset (P = .001) and the entire dataset (P = 2e-05). In addition, a nomogram was conducted through risk score, cancer status, C-index, receiver operating characteristic, and the calibration plots analysis implied good value and clinical utility of the nomogram.We constructed and validated a novel 6-TF signature-based nomogram for predicting the RFS of TPC patients.
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Study on the mechanism of the Pu-erh tea (Camellia sinensis var. assamica) extract inhibiting contraction of isolated mouse duodenum. ACTA VET BRNO 2021. [DOI: 10.2754/avb202190030321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aims of this study were to investigate the effects of three different concentrations of the Pu-erh tea extract (PTE) on the contractile activity of the isolated mouse duodenum and explore their mechanism. The contraction amplitude and frequency of the isolated mouse duodenum were inhibited by all three concentrations of PTE. The high-concentration PTE significantly (P < 0.01) inhibited the promotion effects of acetylcholine chloride or BayK8644 on the amplitude and frequency of intestinal contraction, which were comparable to those of atropine sulphate and verapamil hydrochloride, respectively. The results of UV-Vis and ELISA showed that the content of methionine-enkephalin (Met-ENK) in the PTE-treated groups was decreased to varying degrees; contrarily, the activities of tyrosine hydroxylase (TH), total nitric oxide synthase, and the content of nitric oxide were increased to different degrees. The results suggest that PTE can inhibit the contraction of the isolated mouse duodenum, and the mechanism of action is that PTE can not only inhibit the signal transduction pathways of AC-cAMP-PKA and PLC-IP3-Ca2+, but also the Ca2+ signal systems mediated by G protein-coupled M receptors through the myenteric plexus. By reducing the release of Met-ENK from the motor neurons of the myenteric plexus, the GTP-cAMP-PKK signalling pathway and the Ca2+ signalling system mediated by G protein-coupled delta receptors were inhibited. By increasing the TH activity of the motor neurons in the myenteric plexus, the norepinephrine content was increased, thereby the AC-cAMP-PKA signal transduction pathway mediated by G protein-coupled β receptors was activated. This study increases knowledge regarding the medicinal value of the Pu-erh tea.
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Zhang M, Gao S, Yang D, Fang Y, Lin X, Jin X, Liu Y, Liu X, Su K, Shi K. Influencing factors and strategies of enhancing nanoparticles into tumors in vivo. Acta Pharm Sin B 2021; 11:2265-2285. [PMID: 34522587 PMCID: PMC8424218 DOI: 10.1016/j.apsb.2021.03.033] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 01/05/2021] [Accepted: 02/03/2021] [Indexed: 02/07/2023] Open
Abstract
The administration of nanoparticles (NPs) first faces the challenges of evading renal filtration and clearance of reticuloendothelial system (RES). After that, NPs infiltrate through the expanded endothelial space and penetrated the dense stroma of tumor microenvironment to tumor cells. As long as possible to prolong the time of NPs remaining in tumor tissue, NPs release active agent and induce pharmacological action. This review provides a comprehensive summary of the physical and chemical properties of NPs and the influence of various biological factors in tumor microenvironment, and discusses how to improve the final efficacy through adjusting the characteristics and structure of NPs. Perspectives and future directions are also provided.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Kai Shi
- Corresponding author. Tel./fax: +86 24 43520557.
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10
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Wang J, Han Q, Liu H, Luo H, Li L, Liu A, Jiang Y. Identification of Radiotherapy-Associated Genes in Lung Adenocarcinoma by an Integrated Bioinformatics Analysis Approach. Front Mol Biosci 2021; 8:624575. [PMID: 34212001 PMCID: PMC8239180 DOI: 10.3389/fmolb.2021.624575] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 05/31/2021] [Indexed: 12/18/2022] Open
Abstract
Radiotherapy (RT) plays an important role in the prognosis of lung adenocarcinoma (LUAD) patients, but the radioresistance (RR) of LUAD is still a challenge that needs to be overcome. The current study aimed to investigate LUAD patients with RR to illuminate the underlying mechanisms. We utilized gene set variation analysis (GSVA) and The Cancer Immunome Atlas (TCIA) database to characterize the differences in biological functions and neoantigen-coding genes between RR and radiosensitive (RS) patients. Weighted Gene co-expression network analysis (WGCNA) was used to explore the relationship between RT-related traits and hub genes in two modules, i.e., RR and RS; two representative hub genes for RR (MZB1 and DERL3) and two for RS (IFI35 and PSMD3) were found to be related to different RT-related traits. Further analysis of the hub genes with the Lung Cancer Explorer (LCE), PanglaoDB and GSVA resources revealed the differences in gene expression levels, cell types and potential functions. On this basis, the Tumor and Immune System Interaction Database (TISIDB) was used to identify the potential association between RR genes and B cell infiltration. Finally, we used the Computational Analysis of Resistance (CARE) database to identify specific gene-associated drugs for RR patients and found that GSK525762A and nilotinib might be promising candidates for RR treatment. Taken together, these results demonstrate that B cells in TME may have a significant impact on the RT and that these two drug candidates, GSK525762A and nilotinib, might be helpful for the treatment of RR patients.
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Affiliation(s)
- Junhao Wang
- State Key Laboratory of Organ Failure Research, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Qizheng Han
- State Key Laboratory of Organ Failure Research, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Huizi Liu
- State Key Laboratory of Organ Failure Research, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Haihua Luo
- State Key Laboratory of Organ Failure Research, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Lei Li
- State Key Laboratory of Organ Failure Research, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Aihua Liu
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yong Jiang
- State Key Laboratory of Organ Failure Research, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
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11
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Chong ZX, Yeap SK, Ho WY. Roles of circulating microRNA(s) in human breast cancer. Arch Biochem Biophys 2020; 695:108583. [DOI: 10.1016/j.abb.2020.108583] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 09/05/2020] [Accepted: 09/08/2020] [Indexed: 12/14/2022]
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12
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Cheng S, Li C, Xie W, Miao Y, Guo J, Wang J, Zhang Y. Integrated analysis of DNA methylation and mRNA expression profiles to identify key genes involved in the regrowth of clinically non-functioning pituitary adenoma. Aging (Albany NY) 2020; 12:2408-2427. [PMID: 32015217 PMCID: PMC7041752 DOI: 10.18632/aging.102751] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/07/2020] [Indexed: 12/15/2022]
Abstract
Tumour regrowth is a key characteristic of clinically non-functioning pituitary adenoma (NFPA). No applicable prognosis evaluation method is available for post-operative patients. We aimed to identify DNA methylation biomarkers that can facilitate prognosis evaluation. Genome-wide DNA methylation and mRNA microarray analyses were performed for tumour samples from 71 NFPA patients. Differentially expressed genes and methylated genes were identified based on the regrowth vs non-regrowth grouping. There were 139 genes that showed alterations in methylation status and expression level, and only 13 genes showed a negative correlation. The progression-free analysis found that FAM90A1, ETS2, STAT6, MYT1L, ING2 and KCNK1 are related to tumour regrowth. A prognosis-prediction model was built based on all 13 genes from integrated analysis, and the 6-gene model achieved the best area under the receiver operating characteristic curves (AUC) of 0.820, compared with 0.785 and 0.568 for the 13-gene and 7-gene models, respectively. Our prognostic biomarkers were validated by pyrosequencing and RT-PCR. FAM90A1 and ING2 was found to be independent prognostic factors of tumour regrowth with univariate Cox regression. The DNA methylation and expression levels of FAM90A1 and ING2 are associated with tumour regrowth, and may serve as biomarkers for predicting the prognosis of patients with NFPA.
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Affiliation(s)
- Sen Cheng
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
| | - Chuzhong Li
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing Institute for Brain Disorders Brain Tumour Center, China National Clinical Research Center for Neurological Diseases, Key Laboratory of Central Nervous System Injury Research, Beijing 100070, China
| | - Weiyan Xie
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
| | - Yazhou Miao
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
| | - Jing Guo
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
| | - Jichao Wang
- People's Hospital of Xin Jiang Uygur Autonomous Region, Urumqi 830001, China
| | - Yazhuo Zhang
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing Institute for Brain Disorders Brain Tumour Center, China National Clinical Research Center for Neurological Diseases, Key Laboratory of Central Nervous System Injury Research, Beijing 100070, China
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Nazarieh M, Rajula HSR, Helms V. Topology Consistency of Disease-specific Differential Co-regulatory Networks. BMC Bioinformatics 2019; 20:550. [PMID: 31694523 PMCID: PMC6833256 DOI: 10.1186/s12859-019-3107-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 09/20/2019] [Indexed: 12/14/2022] Open
Abstract
Background Sets of differentially expressed genes often contain driver genes that induce disease processes. However, various methods for identifying differentially expressed genes yield quite different results. Thus, we investigated whether this affects the identification of key players in regulatory networks derived by downstream analysis from lists of differentially expressed genes. Results While the overlap between the sets of significant differentially expressed genes determined by DESeq, edgeR, voom and VST was only 26% in liver hepatocellular carcinoma and 28% in breast invasive carcinoma, the topologies of the regulatory networks constructed using the TFmiR webserver for the different sets of differentially expressed genes were found to be highly consistent with respect to hub-degree nodes, minimum dominating set and minimum connected dominating set. Conclusions The findings suggest that key genes identified in regulatory networks derived by systematic analysis of differentially expressed genes may be a more robust basis for understanding diseases processes than simply inspecting the lists of differentially expressed genes.
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Affiliation(s)
- Maryam Nazarieh
- Center for Bioinformatics, University of Saarland, Saarbruecken, Germany.,Graduate School of Computer Science, University of Saarland, Saarbruecken, Germany
| | | | - Volkhard Helms
- Center for Bioinformatics, University of Saarland, Saarbruecken, Germany.
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14
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Hill BS, Sarnella A, D'Avino G, Zannetti A. Recruitment of stromal cells into tumour microenvironment promote the metastatic spread of breast cancer. Semin Cancer Biol 2019; 60:202-213. [PMID: 31377307 DOI: 10.1016/j.semcancer.2019.07.028] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/31/2019] [Accepted: 07/31/2019] [Indexed: 02/07/2023]
Abstract
Currently, metastasis remains the primary cause of death of patients with breast cancer despite the important advances in the treatment of this disease. In the complex tumour microenvironment network, several malignant and non-malignant cell types as well as components of extracellular matrix cooperate in promoting the metastatic spread of breast carcinoma. Many components of the stromal compartment are recruited from distant sites to the tumour including mesenchymal stem cells, endothelial cells, macrophages and other immune cells whereas other cells such as fibroblasts are already present in both primary and secondary lesions. When these cells come into contact with cancer cells they are "educated" and acquire a pro-tumoural phenotype, which support all the steps of the metastatic cascade. In this Review, we highlight the role played by each stromal component in guiding cancer cells in their venture towards colonizing metastatic sites.
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15
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Lintula S, Mirtti T, Rannikko A, Bützow A, Lempiäinen A, Stenman J, Stenman UH, Hotakainen K. Tumor expression of human chorionic gonadotropin beta mRNA and prognosis of prostate cancer treated by radical prostatectomy. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 79:424-430. [PMID: 31294620 DOI: 10.1080/00365513.2019.1639214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The beta subunit of human chorionic gonadotropin (hCGβ) is encoded by six genes (CGB) classified as type I and type II. CGB mRNA is produced in large amounts by trophoblastic tissues and in small amounts by several cancerous tissues including prostate cancer and by a few benign tissues, including the prostate. Quantitative reverse-transcription polymerase chain reaction (RT-qPCR) was used to study the expression levels of all CGB mRNAs together (total CGB mRNA) and the two types of CGB mRNA separately in non-cancerous (n = 74) and cancerous prostatic tissue obtained by radical prostatectomy (n = 193). RNA was isolated from formalin-fixed paraffin-embedded (FFPE) samples and mRNA levels of CGB were correlated with disease-specific survival. Total CGB mRNA concentrations were significantly lower (p < .0001) in cancerous than non-cancerous prostatic tissue. Separate analysis of type I CGB and type II CGB mRNA showed that both type I CGB (p < .0001) and type II CGB mRNA (p = .007) are lower in cancerous tissue than in non-cancerous tissue. Low type II CGB mRNA level in cancerous tissue was associated with shorter cancer-specific survival (p = .001) of prostate cancer patients treated by radical prostatectomy.
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Affiliation(s)
- Susanna Lintula
- Department of Clinical Chemistry, University of Helsinki , Helsinki , Finland
| | - Tuomas Mirtti
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki , Helsinki , Finland.,Department of Pathology (HUSLAB Laboratory Services), Helsinki University Hospital , Helsinki , Finland
| | - Antti Rannikko
- Department of Urology, Helsinki University Hospital , Helsinki , Finland
| | - Anna Bützow
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki , Helsinki , Finland
| | - Anna Lempiäinen
- Department of Clinical Chemistry, University of Helsinki , Helsinki , Finland
| | - Jakob Stenman
- Department of Pathology (HUSLAB Laboratory Services), Helsinki University Hospital , Helsinki , Finland.,Department of Pediatric Surgery, Karolinska University Hospital , Stockholm , Sweden.,Department of Women's and Children's Health, Karolinska Institutet , Stockholm , Sweden
| | - Ulf-Håkan Stenman
- Department of Clinical Chemistry, University of Helsinki , Helsinki , Finland
| | - Kristina Hotakainen
- Department of Clinical Chemistry, University of Helsinki , Helsinki , Finland
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16
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Carrero ZI, Kollareddy M, Chauhan KM, Ramakrishnan G, Martinez LA. Mutant p53 protects ETS2 from non-canonical COP1/DET1 dependent degradation. Oncotarget 2017; 7:12554-67. [PMID: 26871468 PMCID: PMC4914304 DOI: 10.18632/oncotarget.7275] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 01/20/2016] [Indexed: 01/27/2023] Open
Abstract
Mutations in the tumor suppressor gene TP53 contribute to the development of approximately half of all human cancers. One mechanism by which mutant p53 (mtp53) acts is through interaction with other transcription factors, which can either enhance or repress the transcription of their target genes. Mtp53 preferentially interacts with the erythroblastosis virus E26 oncogene homologue 2 (ETS2), an ETS transcription factor, and increases its protein stability. To study the mechanism underlying ETS2 degradation, we knocked down ubiquitin ligases known to interact with ETS2. We observed that knockdown of the constitutive photomorphogenesis protein 1 (COP1) and its binding partner De-etiolated 1 (DET1) significantly increased ETS2 stability, and conversely, their ectopic expression led to increased ETS2 ubiquitination and degradation. Surprisingly, we observed that DET1 binds to ETS2 independently of COP1, and we demonstrated that mutation of multiple sites required for ETS2 degradation abrogated the interaction between DET1 and ETS2. Furthermore, we demonstrate that mtp53 prevents the COP1/DET1 complex from ubiquitinating ETS2 and thereby marking it for destruction. Mechanistically, we show that mtp53 destabilizes DET1 and also disrupts the DET1/ETS2 complex thereby preventing ETS2 degradation. Our study reveals a hitherto unknown function in which DET1 mediates the interaction with the substrates of its cognate ubiquitin ligase complex and provides an explanation for the ability of mtp53 to protect ETS2.
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Affiliation(s)
- Zunamys I Carrero
- Department of Biochemistry, The University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Madhusudhan Kollareddy
- Department of Biochemistry, The University of Mississippi Medical Center, Jackson, MS 39216, USA.,Cancer Institute, University of Mississippi, Jackson, MS 39216, USA
| | - Krishna M Chauhan
- Department of Biochemistry, The University of Mississippi Medical Center, Jackson, MS 39216, USA.,Cancer Institute, University of Mississippi, Jackson, MS 39216, USA
| | - Gopalakrishnan Ramakrishnan
- Department of Biochemistry, The University of Mississippi Medical Center, Jackson, MS 39216, USA.,Cancer Institute, University of Mississippi, Jackson, MS 39216, USA
| | - Luis A Martinez
- Department of Pathology and Cancer Center, Stony Brook University, Stony Brook, NY 11794, USA
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17
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Liu X, Zhang C, Zhang Z, Zhang Z, Ji W, Cao S, Cai X, Lei D, Pan X. E26 Transformation-Specific Transcription Factor ETS2 as an Oncogene Promotes the Progression of Hypopharyngeal Cancer. Cancer Biother Radiopharm 2017; 32:327-334. [PMID: 29111780 DOI: 10.1089/cbr.2017.2296] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The E26 transformation-specific (ETS) family is one of the largest families of transcription factors. Upon activation by MAPK pathway, ETS participates in cell proliferation, differentiation, migration, apoptosis, and metastasis. However, the mechanism by which ETS is deregulated in cancer is unclear. In this study, the authors investigated the role of ETS factor, ETS2, in hypopharyngeal cancer pathogenesis in hypopharyngeal cancer tissues (N = 20) and corresponding non-neoplastic tissues (N = 20). The results showed that expression of ETS2 was increased in cancer tissues as compared with the expression in corresponding non-neoplastic tissues. Analysis of clinicopathological characteristics showed that increased level of ETS2 is associated with III-IV tumor node metastasis stage and lymph node metastasis. In addition, knockdown of ETS2 by siRNA in pharyngeal cancer cell line, FaDu, significantly decreased cell's vitality and colony-forming ability by inducing caspase-3-dependent apoptosis and cell cycle arrest. Furthermore, inhibition of ETS2 could abrogate the migration, invasion, and transforming growth factor-β-induced epithelial mesenchymal transition through the upregulation of E-cadherin, zona occludens protein-1, together with downregulation of vimentin and α-sooth muscle actin. These functions of ETS2 could be associated with the activation of MAPK/p38/ERK/JNK signals. Taken together, the authors opined that ETS2 functions as an oncogene and plays a key role in the progression of hypopharyngeal cancer.
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Affiliation(s)
- Xuejun Liu
- 1 Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC (Shandong University) , Jinan, China .,2 Department of Otorhinolaryngology, Second Affiliated Hospital of Wenzhou Medical University , Wenzhou, China
| | - Chuqin Zhang
- 1 Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC (Shandong University) , Jinan, China .,2 Department of Otorhinolaryngology, Second Affiliated Hospital of Wenzhou Medical University , Wenzhou, China
| | - Zhonghua Zhang
- 3 Department of Otorhinolaryngology, Affiliated Weihai Second Municipal Hospital of Qingdao University , Weihai, China
| | - Zuping Zhang
- 1 Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC (Shandong University) , Jinan, China
| | - Wei Ji
- 1 Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC (Shandong University) , Jinan, China
| | - Shengda Cao
- 1 Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC (Shandong University) , Jinan, China
| | - Xiaolan Cai
- 1 Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC (Shandong University) , Jinan, China
| | - Dapeng Lei
- 1 Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC (Shandong University) , Jinan, China
| | - Xinliang Pan
- 1 Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC (Shandong University) , Jinan, China
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18
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Plotnik JP, Hollenhorst PC. Interaction with ZMYND11 mediates opposing roles of Ras-responsive transcription factors ETS1 and ETS2. Nucleic Acids Res 2017; 45:4452-4462. [PMID: 28119415 PMCID: PMC5416753 DOI: 10.1093/nar/gkx039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 01/22/2017] [Indexed: 12/13/2022] Open
Abstract
Aberrant activation of RAS/MAPK signaling is a driver of over one third of all human carcinomas. The homologous transcription factors ETS1 and ETS2 mediate activation of gene expression programs downstream of RAS/MAPK signaling. ETS1 is important for oncogenesis in many tumor types. However, ETS2 can act as an oncogene in some cellular backgrounds, and as a tumor suppressor in others, and the molecular mechanism responsible for this cell-type specific function remains unknown. Here, we show that ETS1 and ETS2 can regulate a cell migration gene expression program in opposite directions, and provide the first comparison of the ETS1 and ETS2 cistromes. This genomic data and an ETS1 deletion line reveal that the opposite function of ETS2 is a result of binding site competition and transcriptional attenuation due to weaker transcriptional activation by ETS2 compared to ETS1. This weaker activation was mapped to the ETS2 N-terminus and a specific interaction with the co-repressor ZMYND11 (BS69). Furthermore, ZMYND11 expression levels in patient tumors correlated with oncogenic versus tumor suppressive roles of ETS2. Therefore, these data indicate a novel and specific mechanism allowing ETS2 to switch between oncogenic and tumor suppressive functions in a cell-type specific manner.
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Affiliation(s)
- Joshua P Plotnik
- Biology Department, Indiana University, Bloomington, IN 47405, USA
| | - Peter C Hollenhorst
- Medical Sciences, Indiana University School of Medicine, Bloomington, IN 47405, USA
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19
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Pitarresi JR, Liu X, Sharma SM, Cuitiño MC, Kladney RD, Mace TA, Donohue S, Nayak SG, Qu C, Lee J, Woelke SA, Trela S, LaPak K, Yu L, McElroy J, Rosol TJ, Shakya R, Ludwig T, Lesinski GB, Fernandez SA, Konieczny SF, Leone G, Wu J, Ostrowski MC. Stromal ETS2 Regulates Chemokine Production and Immune Cell Recruitment during Acinar-to-Ductal Metaplasia. Neoplasia 2017; 18:541-52. [PMID: 27659014 PMCID: PMC5031867 DOI: 10.1016/j.neo.2016.07.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/22/2016] [Accepted: 07/25/2016] [Indexed: 12/30/2022] Open
Abstract
Preclinical studies have suggested that the pancreatic tumor microenvironment both inhibits and promotes tumor development and growth. Here we establish the role of stromal fibroblasts during acinar-to-ductal metaplasia (ADM), an initiating event in pancreatic cancer formation. The transcription factor V-Ets avian erythroblastosis virus E26 oncogene homolog 2 (ETS2) was elevated in smooth muscle actin–positive fibroblasts in the stroma of pancreatic ductal adenocarcinoma (PDAC) patient tissue samples relative to normal pancreatic controls. LSL-KrasG12D/+; LSL-Trp53R172H/+; Pdx-1-Cre (KPC) mice showed that ETS2 expression initially increased in fibroblasts during ADM and remained elevated through progression to PDAC. Conditional ablation of Ets-2 in pancreatic fibroblasts in a KrasG12D-driven mouse ADM model decreased the amount of ADM events. ADMs from fibroblast Ets-2–deleted animals had reduced epithelial cell proliferation and increased apoptosis. Surprisingly, fibroblast Ets-2 deletion significantly altered immune cell infiltration into the stroma, with an increased CD8+ T-cell population, and decreased presence of regulatory T cells (Tregs), myeloid-derived suppressor cells, and mature macrophages. The mechanism involved ETS2-dependent chemokine ligand production in fibroblasts. ETS2 directly bound to regulatory sequences for Ccl3, Ccl4, Cxcl4, Cxcl5, and Cxcl10, a group of chemokines that act as potent mediators of immune cell recruitment. These results suggest an unappreciated role for ETS2 in fibroblasts in establishing an immune-suppressive microenvironment in response to oncogenic KrasG12D signaling during the initial stages of tumor development.
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Affiliation(s)
- Jason R Pitarresi
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Xin Liu
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Sudarshana M Sharma
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Maria C Cuitiño
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Raleigh D Kladney
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Thomas A Mace
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Sydney Donohue
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Sunayana G Nayak
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Chunjing Qu
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - James Lee
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Sarah A Woelke
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Stefan Trela
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Kyle LaPak
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Lianbo Yu
- Department of Biomedical Informatics' Center for Biostatistics, The Ohio State University, Columbus, OH 43210, USA
| | - Joseph McElroy
- Department of Biomedical Informatics' Center for Biostatistics, The Ohio State University, Columbus, OH 43210, USA
| | - Thomas J Rosol
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Veterinary Biosciences, The Ohio State University, Columbus, OH 43210, USA
| | - Reena Shakya
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Thomas Ludwig
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Gregory B Lesinski
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Soledad A Fernandez
- Department of Biomedical Informatics' Center for Biostatistics, The Ohio State University, Columbus, OH 43210, USA
| | - Stephen F Konieczny
- Department of Biological Sciences and the Purdue Center for Cancer Research and the Bindley Bioscience Center, Purdue University, West Lafayette, IN 47907-2057, USA
| | - Gustavo Leone
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Jinghai Wu
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Michael C Ostrowski
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA.
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20
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Sizemore GM, Pitarresi JR, Balakrishnan S, Ostrowski MC. The ETS family of oncogenic transcription factors in solid tumours. Nat Rev Cancer 2017; 17:337-351. [PMID: 28450705 DOI: 10.1038/nrc.2017.20] [Citation(s) in RCA: 193] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Findings over the past decade have identified aberrant activation of the ETS transcription factor family throughout all stages of tumorigenesis. Specifically in solid tumours, gene rearrangement and amplification, feed-forward growth factor signalling loops, formation of gain-of-function co-regulatory complexes and novel cis-acting mutations in ETS target gene promoters can result in increased ETS activity. In turn, pro-oncogenic ETS signalling enhances tumorigenesis through a broad mechanistic toolbox that includes lineage specification and self-renewal, DNA damage and genome instability, epigenetics and metabolism. This Review discusses these different mechanisms of ETS activation and subsequent oncogenic implications, as well as the clinical utility of ETS factors.
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Affiliation(s)
- Gina M Sizemore
- The Comprehensive Cancer Center, The Ohio State University
- Department of Cancer Biology and Genetics, The Ohio State University, 598 Biomedical Research Tower, 460 W. 12th Avenue, Columbus, Ohio 43210, USA
| | - Jason R Pitarresi
- The Comprehensive Cancer Center, The Ohio State University
- Department of Cancer Biology and Genetics, The Ohio State University, 598 Biomedical Research Tower, 460 W. 12th Avenue, Columbus, Ohio 43210, USA
| | - Subhasree Balakrishnan
- The Comprehensive Cancer Center, The Ohio State University
- Department of Cancer Biology and Genetics, The Ohio State University, 598 Biomedical Research Tower, 460 W. 12th Avenue, Columbus, Ohio 43210, USA
| | - Michael C Ostrowski
- The Comprehensive Cancer Center, The Ohio State University
- Department of Cancer Biology and Genetics, The Ohio State University, 598 Biomedical Research Tower, 460 W. 12th Avenue, Columbus, Ohio 43210, USA
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21
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Jung HH, Lee SH, Kim JY, Ahn JS, Park YH, Im YH. Statins affect ETS1-overexpressing triple-negative breast cancer cells by restoring DUSP4 deficiency. Sci Rep 2016; 6:33035. [PMID: 27604655 PMCID: PMC5015082 DOI: 10.1038/srep33035] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 08/17/2016] [Indexed: 12/13/2022] Open
Abstract
We investigated the molecular mechanisms underlying statin-induced growth suppression of triple-negative breast cancer (TNBC) that overexpress the transcription factor ets proto-oncogene 1(ets-1) and downregulate dual specific protein phosphatase 4(dusp4) expression. We examined the gene expression of BC cell lines using the nCounter expression assay, MTT viability assay, cell proliferation assay and Western blot to evaluate the effects of simvastatin. Finally, we performed cell viability testing in TNBC cell line-transfected DUSP4. We demonstrated that ETS1 mRNA and protein were overexpressed in TNBC cells compared with other BC cell lines (P = <0.001) and DUSP4 mRNA was downregulated (P = <0.001). MTT viability assay showed that simvastatin had significant antitumor activity (P = 0.002 in 0.1 μM). In addition, simvastatin could restore dusp4 deficiency and suppress ets-1 expression in TNBC. Lastly, we found that si-DUSP4 RNA transfection overcame the antitumor activity of statins. MAPK pathway inhibitor, U0126 and PI3KCA inhibitor LY294002 also decreased levels of ets-1, phosphor-ERK and phosphor-AKT on Western blot assay. Accordingly, our study indicates that simvastatin potentially affects the activity of transcriptional factors such as ets-1 and dusp4 through the MAPK pathway. In conclusion, statins might be potential candidates for TNBC therapy reducing ets-1 expression via overexpression of dusp4.
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Affiliation(s)
- Hae Hyun Jung
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Korea
| | - Soo-Hyeon Lee
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Ji-Yeon Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Jin Seok Ahn
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Yeon Hee Park
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Korea.,Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.,Biomedical Research Institute, Samsung Medical Center, Seoul 06351, Korea
| | - Young-Hyuck Im
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.,Biomedical Research Institute, Samsung Medical Center, Seoul 06351, Korea
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22
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Mehta S, Hughes NP, Li S, Jubb A, Adams R, Lord S, Koumakis L, van Stiphout R, Padhani A, Makris A, Buffa FM, Harris AL. Radiogenomics Monitoring in Breast Cancer Identifies Metabolism and Immune Checkpoints as Early Actionable Mechanisms of Resistance to Anti-angiogenic Treatment. EBioMedicine 2016; 10:109-16. [PMID: 27474395 PMCID: PMC5006694 DOI: 10.1016/j.ebiom.2016.07.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 07/07/2016] [Accepted: 07/14/2016] [Indexed: 02/07/2023] Open
Abstract
Anti-VEGF antibody bevacizumab has prolonged progression-free survival in several cancer types, however acquired resistance is common. Adaption has been observed pre-clinically, but no human study has shown timing and genes involved, enabling formulation of new clinical paradigms. In a window-of-opportunity study in 35 ductal breast cancer patients for 2weeks prior to neoadjuvant chemotherapy, we monitored bevacizumab response by Dynamic Contrast-Enhanced Magnetic Resonance [DCE-MRI], transcriptomic and pathology. Initial treatment response showed significant overall decrease in DCE-MRI median K(trans), angiogenic factors such ESM1 and FLT1, and proliferation. However, it also revealed great heterogeneity, spanning from downregulation of blood vessel density and central necrosis to continued growth with new vasculature. Crucially, significantly upregulated pathways leading to resistance included glycolysis and pH adaptation, PI3K-Akt and immune checkpoint signaling, for which inhibitors exist, making a strong case to investigate such combinations. These findings support that anti-angiogenesis trials should incorporate initial enrichment of patients with high K(trans), and a range of targeted therapeutic options to meet potential early resistance pathways. Multi-arm adaptive trials are ongoing using molecular markers for targeted agents, but our results suggest this needs to be further modified by much earlier adaptation when using drugs affecting the tumor microenvironment.
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Affiliation(s)
- Shaveta Mehta
- Department of Oncology, University of Oxford, Oxford, UK
| | - Nick P Hughes
- Department of Engineering, University of Oxford, Oxford, UK
| | - Sonia Li
- Paul Strickland Scanner Centre, Northwood, Middlesex, UK
| | - Adrian Jubb
- Department of Oncology, University of Oxford, Oxford, UK
| | - Rosie Adams
- Department of Oncology, University of Oxford, Oxford, UK
| | - Simon Lord
- Department of Oncology, University of Oxford, Oxford, UK
| | | | | | - Anwar Padhani
- Mount Vernon Cancer Centre, Northwood, Middlesex, UK
| | - Andreas Makris
- Paul Strickland Scanner Centre, Northwood, Middlesex, UK
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23
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Craig MP, Sumanas S. ETS transcription factors in embryonic vascular development. Angiogenesis 2016; 19:275-85. [PMID: 27126901 DOI: 10.1007/s10456-016-9511-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 04/19/2016] [Indexed: 11/25/2022]
Abstract
At least thirteen ETS-domain transcription factors are expressed during embryonic hematopoietic or vascular development and potentially function in the formation and maintenance of the embryonic vasculature or blood lineages. This review summarizes our current understanding of the specific roles played by ETS factors in vasculogenesis and angiogenesis and the implications of functional redundancies between them.
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Affiliation(s)
- Michael P Craig
- Department of Biochemistry and Molecular Biology, Wright State University, 3640 Colonel Glenn Hwy., Dayton, OH, 45435, USA.,Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA
| | - Saulius Sumanas
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA.
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24
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Abstract
Laser capture microdissection (or LCM) allows for isolation of cells from specific tissue compartments, which can then be followed by DNA, RNA, and/or protein isolation and downstream characterization. Unlike other methods for cell isolation, LCM can be directed towards cells situated in specific anatomical contexts, and is therefore of significant value when investigating the tumor microenvironment, where localization is often key to function. Here, we present a summary of ways in which LCM can be utilized, as well as protocols for the isolation of tumor and tumor-associated stromal elements from frozen breast cancer samples, with a focus on preparation of samples for RNA characterization.
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Affiliation(s)
- Nicholas R Bertos
- Rosalind and Morris Goodman Cancer Research Centre, McGill University, Montréal, QC, Canada
| | - Morag Park
- Rosalind and Morris Goodman Cancer Research Centre, McGill University, Montréal, QC, Canada. .,Department of Experimental Medicine, McGill University, Montréal, QC, Canada. .,Department of Biochemistry, McGill University, Montréal, QC, Canada. .,Department of Oncology, McGill University, Montréal, QC, Canada. .,Department of Pathology, McGill University, Montréal, QC, Canada.
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25
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Pérez-Ramírez C, Cañadas-Garre M, Molina MÁ, Faus-Dáder MJ, Calleja-Hernández MÁ. PTEN and PI3K/AKT in non-small-cell lung cancer. Pharmacogenomics 2015; 16:1843-62. [DOI: 10.2217/pgs.15.122] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Non-small-cell lung cancer (NSCLC) is the leading cause of cancer deaths worldwide. In the last years, the identification of activating EGFR mutations, conferring increased sensitivity and disease response to tyrosine kinase inhibitors, has changed the prospect of NSCLC patients. The PTEN/PI3K/AKT pathway regulates multiple cellular functions, including cell growth, differentiation, proliferation, survival, motility, invasion and intracellular trafficking. Alterations in this pathway, mainly PTEN inactivation, have been associated with resistance to EGFR-tyrosine kinase inhibitor therapy and lower survival in NSCLC patients. In this review, we will briefly discuss the main PTEN/PI3K/AKT pathway alterations found in NSCLC, as well as the cell processes regulated by PTEN/PI3K/AKT leading to tumorigenesis.
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Affiliation(s)
- Cristina Pérez-Ramírez
- Pharmacogenetics Unit. UGC Provincial de Farmacia de Granada. Instituto de Investigación Biosanitaria de Granada. Complejo Hospitalario Universitario de Granada. Avda. Fuerzas Armadas, 2. 18014 Granada, Spain
- Department of Biochemistry. Faculty of Pharmacy. University of Granada Campus Universitario de Cartuja, s/n. 18071 Granada, Spain
| | - Marisa Cañadas-Garre
- Pharmacogenetics Unit. UGC Provincial de Farmacia de Granada. Instituto de Investigación Biosanitaria de Granada. Complejo Hospitalario Universitario de Granada. Avda. Fuerzas Armadas, 2. 18014 Granada, Spain
| | - Miguel Ángel Molina
- PANGAEA BIOTECH, S.L. Hospital Universitario Quirón Dexeus. C/Sabino Arana, 5-19. 08028 Barcelona
| | - María José Faus-Dáder
- Department of Biochemistry. Faculty of Pharmacy. University of Granada Campus Universitario de Cartuja, s/n. 18071 Granada, Spain
| | - Miguel Ángel Calleja-Hernández
- Pharmacogenetics Unit. UGC Provincial de Farmacia de Granada. Instituto de Investigación Biosanitaria de Granada. Complejo Hospitalario Universitario de Granada. Avda. Fuerzas Armadas, 2. 18014 Granada, Spain
- Department of Pharmacology. Faculty of Pharmacy. University of Granada. Campus Universitario de Cartuja, s/n. 18071 Granada, Spain
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26
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Hannafon BN, Carpenter KJ, Berry WL, Janknecht R, Dooley WC, Ding WQ. Exosome-mediated microRNA signaling from breast cancer cells is altered by the anti-angiogenesis agent docosahexaenoic acid (DHA). Mol Cancer 2015; 14:133. [PMID: 26178901 PMCID: PMC4504101 DOI: 10.1186/s12943-015-0400-7] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 06/17/2015] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Docosahexaenoic acid (DHA) is a natural compound with anticancer and anti-angiogenesis activity that is currently under investigation as both a preventative agent and an adjuvant to breast cancer therapy. However, the precise mechanisms of DHA's anticancer activities are unclear. It is understood that the intercommunication between cancer cells and their microenvironment is essential to tumor angiogenesis. Exosomes are extracellular vesicles that are important mediators of intercellular communication and play a role in promoting angiogenesis. However, very little is known about the contribution of breast cancer exosomes to tumor angiogenesis or whether exosomes can mediate DHA's anticancer action. RESULTS Exosomes were collected from MCF7 and MDA-MB-231 breast cancer cells after treatment with DHA. We observed an increase in exosome secretion and exosome microRNA contents from the DHA-treated cells. The expression of 83 microRNAs in the MCF7 exosomes was altered by DHA (>2-fold). The most abundant exosome microRNAs (let-7a, miR-23b, miR-27a/b, miR-21, let-7, and miR-320b) are known to have anti-cancer and/or anti-angiogenic activity. These microRNAs were also increased by DHA treatment in the exosomes from other breast cancer lines (MDA-MB-231, ZR751 and BT20), but not in exosomes from normal breast cells (MCF10A). When DHA-treated MCF7 cells were co-cultured with or their exosomes were directly applied to endothelial cell cultures, we observed an increase in the expression of these microRNAs in the endothelial cells. Furthermore, overexpression of miR-23b and miR-320b in endothelial cells decreased the expression of their pro-angiogenic target genes (PLAU, AMOTL1, NRP1 and ETS2) and significantly inhibited tube formation by endothelial cells, suggesting that the microRNAs transferred by exosomes mediate DHA's anti-angiogenic action. These effects could be reversed by knockdown of the Rab GTPase, Rab27A, which controls exosome release. CONCLUSIONS We conclude that DHA alters breast cancer exosome secretion and microRNA contents, which leads to the inhibition of angiogenesis. Our data demonstrate that breast cancer exosome signaling can be targeted to inhibit tumor angiogenesis and provide new insight into DHA's anticancer action, further supporting its use in cancer therapy.
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Affiliation(s)
- Bethany N Hannafon
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
| | - Karla J Carpenter
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
| | - William L Berry
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
| | - Ralf Janknecht
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
- Peggy and Charles Stephenson Cancer Center, Oklahoma City, OK, 73104, USA.
| | - William C Dooley
- Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
- Peggy and Charles Stephenson Cancer Center, Oklahoma City, OK, 73104, USA.
| | - Wei-Qun Ding
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
- Peggy and Charles Stephenson Cancer Center, Oklahoma City, OK, 73104, USA.
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27
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Han Y, Zhang Y, Jia T, Sun Y. Molecular mechanism underlying the tumor-promoting functions of carcinoma-associated fibroblasts. Tumour Biol 2015; 36:1385-94. [PMID: 25680413 DOI: 10.1007/s13277-015-3230-8] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 02/05/2015] [Indexed: 12/16/2022] Open
Abstract
Tumor microenvironment is composed of all the untransformed elements in the vicinity of tumor, mainly including a large number of stromal cells and extracellular matrix proteins, which play an active role in most solid tumor initiation and progression. Carcinoma-associated fibroblasts (CAFs), one of the most common stromal cell types in the tumor microenvironment, have been demonstrated to be involved in tumor growth, invasion, and metastasis. Therefore, they are becoming a promising target for anti-cancer therapies. In this review, we firstly summarize the current understandings of CAFs' molecular biology, including the heterogeneous cellular origins and molecular markers, and then, we focus on reviewing their various tumor-promoting phenotypes involved in complex mechanisms, which can be summarized to the CAF-conveyed paracrine signals in tumor cells, cancer stem cells, and metastasis-initiating cancer cells, as well as the CAF-enhanced extrinsic tumor-promoting processes including angiogenesis, extracellular matrix remodeling, and tumor-related inflammation; finally, we describe the available directions of CAF-based target therapy and suggest research areas which need to be further explored so as to deepen the understanding of tumor evolution and provide new therapeutic targets for cancer treatment.
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Affiliation(s)
- Yali Han
- Department of Oncology, Jinan Central Hospital, Shandong University, Jinan, 250013, Shandong, China,
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28
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Wallace JA, Pitarresi JR, Sharma N, Palettas M, Cuitiño MC, Sizemore ST, Yu L, Sanderlin A, Rosol TJ, Mehta KD, Sizemore GM, Ostrowski MC. Protein kinase C Beta in the tumor microenvironment promotes mammary tumorigenesis. Front Oncol 2014; 4:87. [PMID: 24795864 PMCID: PMC4006052 DOI: 10.3389/fonc.2014.00087] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 04/08/2014] [Indexed: 02/04/2023] Open
Abstract
Protein kinase C beta (PKCβ) expression in breast cancer is associated with a more aggressive tumor phenotype, yet the mechanism for how PKCβ is pro-tumorigenic in this disease is still unclear. Interestingly, while it is known that PKCβ mediates angiogenesis, immunity, fibroblast function and adipogenesis, all components of the mammary tumor microenvironment (TME), no study to date has investigated whether stromal PKCβ is functionally relevant in breast cancer. Herein, we evaluate mouse mammary tumor virus–polyoma middle T-antigen (MMTV–PyMT) induced mammary tumorigenesis in the presence and absence of PKCβ. We utilize two model systems: one where PKCβ is deleted in both the epithelial and stromal compartments to test the global requirement for PKCβ on tumor formation, and second, where PKCβ is deleted only in the stromal compartment to test its role in the TME. MMTV–PyMT mice globally lacking PKCβ live longer and develop smaller tumors with decreased proliferation and decreased macrophage infiltration. Similarly, when PKCβ is null exclusively in the stroma, PyMT-driven B6 cells form smaller tumors with diminished collagen deposition. These experiments reveal for the first time a tumor promoting role for stromal PKCβ in MMTV–PyMT tumorigenesis. In corroboration with these results, PKCβ mRNA (Prkcb) is increased in fibroblasts isolated from MMTV–PyMT tumors. These data were confirmed in a breast cancer patient cohort. Combined these data suggest the continued investigation of PKCβ in the mammary TME is necessary to elucidate how to effectively target this signaling pathway in breast cancer.
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Affiliation(s)
- Julie A Wallace
- Department of Molecular and Cellular Biochemistry, College of Medicine, The Ohio State University , Columbus, OH , USA ; Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA
| | - Jason R Pitarresi
- Department of Molecular and Cellular Biochemistry, College of Medicine, The Ohio State University , Columbus, OH , USA ; Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA
| | - Nandini Sharma
- Department of Molecular and Cellular Biochemistry, College of Medicine, The Ohio State University , Columbus, OH , USA ; Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA
| | - Marilly Palettas
- Department of Molecular and Cellular Biochemistry, College of Medicine, The Ohio State University , Columbus, OH , USA ; Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA
| | - Maria C Cuitiño
- Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA
| | - Steven T Sizemore
- Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA ; Department of Radiation Oncology, The Ohio State University , Columbus, OH , USA
| | - Lianbo Yu
- Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA ; Center for Biostatistics, The Ohio State University , Columbus, OH , USA
| | - Allen Sanderlin
- Department of Molecular and Cellular Biochemistry, College of Medicine, The Ohio State University , Columbus, OH , USA ; Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA
| | - Thomas J Rosol
- Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA ; Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University , Columbus, OH , USA
| | - Kamal D Mehta
- Department of Molecular and Cellular Biochemistry, College of Medicine, The Ohio State University , Columbus, OH , USA
| | - Gina M Sizemore
- Department of Molecular and Cellular Biochemistry, College of Medicine, The Ohio State University , Columbus, OH , USA ; Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA
| | - Michael C Ostrowski
- Department of Molecular and Cellular Biochemistry, College of Medicine, The Ohio State University , Columbus, OH , USA ; Comprehensive Cancer Center, The Ohio State University , Columbus, OH , USA
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