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Macchi R, Sotelo AD, Parrado AC, Salaverry LS, Blanco GA, Castro MS, Rey-Roldán EB, Canellada AM. Losartan impairs HTR-8/SVneo trophoblast migration through inhibition of angiotensin II-induced pro-inflammatory profile in human endometrial stromal cells. Toxicol Appl Pharmacol 2023; 461:116383. [PMID: 36682589 DOI: 10.1016/j.taap.2023.116383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/29/2022] [Accepted: 01/16/2023] [Indexed: 01/21/2023]
Abstract
A deep interaction between the endometrium and the invading trophoblast occurs during implantation in humans, with the acquisition of uterine receptivity to the invading embryo promoted by an elevation of pro-inflammatory cytokines in the endometrium, and the invasiveness of decidualizing endometrial stromal cells, augmented by trophoblast-derived signals. Considering that usage of angiotensin II type 1 (AT1) receptor blockers, among other renin-angiotensin system (RAS) antagonists, is associated with adverse pregnancy outcomes, here we aim to analyse the involvement of AT1 receptor in the reciprocal dialogue occurring between endometrial stroma and trophoblast cells. In human endometrial stromal cells (T-HESC) pre-incubated with a decidualization cocktail, angiotensin (Ang) II increased protein expression of prolactin and FOXO1, markers of endometrial decidualization, while promoting nuclear translocation of FOXO1. In addition, Ang II treatment increased CXCL8, and matrix metalloprotease (MMP)-2 levels in T-HESC. Incubation with the AT1 receptor blocker losartan or with an NFAT signalling inhibitor, decreased Ang II-induced secretion of prolactin, CXCL8, and MMP-2 in T-HESC. In a wound healing assay, conditioned medium (CM) obtained from Ang II-treated T-HESC, but not CM from losartan-pre-incubated T-HESC, increased migration of HTR-8/SVneo trophoblasts, effect that was inhibited in the presence of a CXCL8-neutralizing antibody. An increased secretion of CXCL8 and MMP-2 was observed after treatment of T-HESC with CM obtained from HTR-8/SVneo cells, which was not observed in T-HESC pre-incubated with losartan or with the NFAT inhibitor. This study evidenced a reciprocal RAS-coded messaging between trophoblast and ESC which is affected by the AT1 receptor blocker losartan.
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Affiliation(s)
- Rosario Macchi
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Agustina D Sotelo
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Andrea C Parrado
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Luciana S Salaverry
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Guillermo A Blanco
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Marisa S Castro
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Estela B Rey-Roldán
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Andrea M Canellada
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina.
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Wang JJ, Siu MK, Jiang YX, Chan DW, Cheung AN, Ngan HY, Chan KK. Infiltration of T cells promotes the metastasis of ovarian cancer cells via the modulation of metastasis-related genes and PD-L1 expression. Cancer Immunol Immunother 2020; 69:2275-89. [PMID: 32504248 DOI: 10.1007/s00262-020-02621-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 05/21/2020] [Indexed: 01/21/2023]
Abstract
Due to its high ability to disseminate, ovarian cancer remains one of the largest threats to women's health, worldwide. Evidence showed that the immune cells infiltrating the tumor microenvironment are crucial in mediating metastasis. Therefore, it is necessary to understand which types of immune cells are involved in metastasis, and to determine the mechanisms by which they influence the process. By immunohistochemistry, we found that higher concentrations of intratumoral CD8+ T cells were found to be correlated with an advanced grade and stage of ovarian cancer. Additionally, the infiltration of stromal CD8+ T cells was also significantly higher in tissues with advanced stages and metastatic tumors. A positive correlation between the infiltration of FoxP3+ Treg cells and histological grade was also observed, regardless of location. PD-L1 expression in metastatic tumors was also higher than that in paired primary ovarian tumors. Transwell migration and invasion assays revealed the increased migration and invasion of ovarian cancer cell lines (A2780CP and ES2) and ascites-derived ovarian cancer cells following co-culturing with CD8+ T cells. Enhanced expression of MMP-9, uPA, VEGF, bFGF, IL-8, IL-10, and PD-L1 by cancer cells following co-culturing with CD8+ T cells were also detected by qPCR, ELISA or flow cytometry. In conclusion, our findings suggest that the infiltrated T cells could promote the development of ovarian cancer, and provide another mechanism of immune evasion mediated by T cells.
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Szlachta K, Kuscu C, Tufan T, Adair SJ, Shang S, Michaels AD, Mullen MG, Fischer NL, Yang J, Liu L, Trivedi P, Stelow EB, Stukenberg PT, Parsons JT, Bauer TW, Adli M. CRISPR knockout screening identifies combinatorial drug targets in pancreatic cancer and models cellular drug response. Nat Commun 2018; 9:4275. [PMID: 30323222 PMCID: PMC6189038 DOI: 10.1038/s41467-018-06676-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 09/12/2018] [Indexed: 12/16/2022] Open
Abstract
Predicting the response and identifying additional targets that will improve the efficacy of chemotherapy is a major goal in cancer research. Through large-scale in vivo and in vitro CRISPR knockout screens in pancreatic ductal adenocarcinoma cells, we identified genes whose genetic deletion or pharmacologic inhibition synergistically increase the cytotoxicity of MEK signaling inhibitors. Furthermore, we show that CRISPR viability scores combined with basal gene expression levels could model global cellular responses to the drug treatment. We develop drug response evaluation by in vivo CRISPR screening (DREBIC) method and validated its efficacy using large-scale experimental data from independent experiments. Comparative analyses demonstrate that DREBIC predicts drug response in cancer cells from a wide range of tissues with high accuracy and identifies therapeutic vulnerabilities of cancer-causing mutations to MEK inhibitors in various cancer types. Predicting the response to chemotherapy is a major goal of cancer research. Here the authors use CRISPR knockout screens in pancreatic ductal adenocarcinoma cells to identify deletions synergistic with MEK inhibitors.
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Affiliation(s)
- Karol Szlachta
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Cem Kuscu
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Turan Tufan
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Sara J Adair
- Department of Surgery, University of Virginia School of Medicine, 1215 Lee St, Charlottesville, VA, 22908, USA
| | - Stephen Shang
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Alex D Michaels
- Department of Surgery, University of Virginia School of Medicine, 1215 Lee St, Charlottesville, VA, 22908, USA
| | - Matthew G Mullen
- Department of Surgery, University of Virginia School of Medicine, 1215 Lee St, Charlottesville, VA, 22908, USA
| | - Natasha Lopes Fischer
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Jiekun Yang
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Limin Liu
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Prasad Trivedi
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Edward B Stelow
- Department of Pathology, University of Virginia School of Medicine, Charlottesville, 1215 Lee St, Charlottesville, VA, 22908, USA
| | - P Todd Stukenberg
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - J Thomas Parsons
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA
| | - Todd W Bauer
- Department of Surgery, University of Virginia School of Medicine, 1215 Lee St, Charlottesville, VA, 22908, USA
| | - Mazhar Adli
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, 1340 JPA, Pinn Hall, Charlottesville, VA, 22908, USA.
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Hosono M, Koma YI, Takase N, Urakawa N, Higashino N, Suemune K, Kodaira H, Nishio M, Shigeoka M, Kakeji Y, Yokozaki H. CXCL8 derived from tumor-associated macrophages and esophageal squamous cell carcinomas contributes to tumor progression by promoting migration and invasion of cancer cells. Oncotarget 2017; 8:106071-106088. [PMID: 29285315 PMCID: PMC5739702 DOI: 10.18632/oncotarget.22526] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/28/2017] [Indexed: 12/28/2022] Open
Abstract
Tumor-associated macrophages (TAMs) are involved in tumor progression and poor prognosis in several malignancies. We previously demonstrated the interaction between high numbers of infiltrating TAMs and poor prognosis in esophageal squamous cell carcinomas (ESCCs). To investigate the significance of TAMs in ESCC, we conducted a cDNA microarray analysis of peripheral blood monocytes (PBMo)-derived macrophages and PBMo-derived macrophages stimulated with conditioned media of TE-series ESCC cell lines (TAM-like PBMo-derived macrophages). C-X-C motif chemokine ligand 8 (CXCL8) was up-regulated in the TAM-like PBMo-derived macrophages. Here we confirmed a high expression level of CXCL8 in TAM-like PBMo-derived macrophages and the expression of CXCR1/2, known as CXCL8 receptors, in TE-series ESCC cell lines. Recombinant human CXCL8 induced the ESCC cell lines’ migration and invasion by the phosphorylation of Akt and Erk1/2. In indirect co-cultures, not only signal pathway inhibitors but also neutralizing antibodies against CXCL8, CXCR1 and CXCR2 suppressed these phenotypes induced by TAM-like PBMo-derived macrophages. Immunohistochemical analysis of 70 resected ESCC samples showed that high expression levels of CXCL8 in ESCC tissues were significantly associated with lymph node metastasis and poor prognosis. These results suggest that CXCL8 up-regulated in the microenvironment may contribute to ESCC progression by promoting cancer cells’ migration and invasion.
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Affiliation(s)
- Masayoshi Hosono
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan.,Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Yu-Ichiro Koma
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Nobuhisa Takase
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan.,Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Naoki Urakawa
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan.,Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Nobuhide Higashino
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan.,Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Kazuki Suemune
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Himiko Kodaira
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Mari Nishio
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Manabu Shigeoka
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Yoshihiro Kakeji
- Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
| | - Hiroshi Yokozaki
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan
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Li Y, Liu L, Yin Z, Xu H, Li S, Tao W, Cheng H, Du L, Zhou X, Zhang B. Effect of targeted silencing of IL-8 on in vitro migration and invasion of SKOV3 ovarian cancer cells. Oncol Lett 2016; 13:567-572. [PMID: 28356930 PMCID: PMC5351404 DOI: 10.3892/ol.2016.5511] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 05/13/2016] [Indexed: 12/14/2022] Open
Abstract
The aim of the study was to determine whether interleukin-8 (IL-8) affects human SKOV3 ovarian cancer cell migration and invasion by targeting silencing of IL-8 expression. Silencing small-interfering RNA (siRNA) targeting IL-8 gene was constructed to infect SKOV3 cells by lentiviral vector. The expression of IL-8 and p-nuclear factor (NF)-κB protein was detected by western blot analysis. The wound scratch and Transwell tests were used to assay the cell migration and invasiveness of SKOV3 cells infected with lentiviral vector targeting IL-8 gene siRNA. The levels of IL-8 protein expressed by SKOV3 cells infected by lentiviral vector targeting IL-8 gene siRNA decreased by 72.3%. IL-8 (50 ng/ml) increased the ability of SKOV3 cells to suppress cell migration (p<0.01). Cisplatin and silencing of IL-8 achieved the ability to inhibit SKOV3 cell invasion (p<0.01), and 100 ng/ml concentration of IL-8 enhanced the ability of SKOV3 invasion (p<0.01). Silencing of IL-8 to a certain extent reduced the expression of p-NF-κB proteins, but it was not statistically significant. In conclusion, silencing of IL-8 may inhibit the migration and invasion of SKOV3 cells, which may be independent of the p-NF-κB protein.
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Affiliation(s)
- Yanyu Li
- Department of Gynaecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China; Xuzhou Clinical School, Xuzhou Medical College, Xuzhou, Jiangsu 221000, P.R. China
| | - Ling Liu
- Department of Pharmacology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Zeyuan Yin
- Xuzhou Clinical School, Xuzhou Medical College, Xuzhou, Jiangsu 221000, P.R. China
| | - Hui Xu
- Department of Gynaecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Shuang Li
- Department of Gynaecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Wei Tao
- Department of Gynaecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Hui Cheng
- Department of Gynaecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Lei Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical College, Xuzhou, Jiangsu 221000, P.R. China
| | - Xueyuan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical College, Xuzhou, Jiangsu 221000, P.R. China
| | - Bei Zhang
- Department of Gynaecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China; Xuzhou Clinical School, Xuzhou Medical College, Xuzhou, Jiangsu 221000, P.R. China
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Li W, Lin S, Li W, Wang W, Li X, Xu D. IL-8 interacts with metadherin promoting proliferation and migration in gastric cancer. Biochem Biophys Res Commun 2016; 478:1330-7. [PMID: 27565732 DOI: 10.1016/j.bbrc.2016.08.123] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 08/22/2016] [Indexed: 01/07/2023]
Abstract
It has been reported that IL-8 was involved in the promotion of invasion of Gastric Cancer (GC), however the underlying mechanism by which IL-8 was observed to be able to promote invasion remains unknown. Here, in our study, IL-8 was shown to be significantly up-regulated in GC compared with paired normal control tissues whose expression was markedly associated with inferior overall prognosis; and IL-8 was displayed to be capable of directly interacting with metadherin (MTDH), which in turn can up-regulate IL-8 expression. Blockage of IL-8/MTDH using specific mono-antibody can abolish the invasion IL-8 mediated. Taken together, our results may provide a novel explanation of working mechanism of IL-8 in the invasion of GC.
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Affiliation(s)
- Wenfeng Li
- The Department of Gastrointestinal and Anus Surgery, The Affiliated Longyan First Hospital of Fujian Medical University, Longyan, 364000, Fujian Province, PR China
| | - Shuangming Lin
- The Department of Gastrointestinal and Anus Surgery, The Affiliated Longyan First Hospital of Fujian Medical University, Longyan, 364000, Fujian Province, PR China
| | - Wenhuan Li
- The Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, PR China
| | - Weijun Wang
- The Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, PR China
| | - Xueming Li
- The Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, PR China.
| | - Dongbo Xu
- The Department of Gastrointestinal and Anus Surgery, The Affiliated Longyan First Hospital of Fujian Medical University, Longyan, 364000, Fujian Province, PR China.
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Shi J, Lu Y, Wei P. Xiaotan Sanjie decoction inhibits angiogenesis in gastric cancer through Interleukin-8-linked regulation of the vascular endothelial growth factor pathway. J Ethnopharmacol 2016; 189:230-237. [PMID: 27224240 DOI: 10.1016/j.jep.2016.05.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 04/30/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Interleukin-8 (IL-8) as a pro-angiogenic factor is strongly associated with gastric cancer metastasis. Xiaotan Sanjie (XTSJ) decoction is an empirical compound prescription based on the phlegm theory of traditional Chinese medicine. Previous studies have shown that XTSJ decoction decreases IL-8 level and formation of vasculogenic mimicry of gastric cancer. AIM OF THE STUDY To investigate the link between Xiaotan Sanjie (XTSJ) decoction and IL-8 regulation in the angiogenesis of gastric cancer. MATERIALS AND METHODS Human umbilical vein endothelial cells (HUVECs) were co-cultured with SGC-7901 human gastric cancer cells and exposed to serum samples containing XTSJ decoction and/or IL-8 (1.0ng/mL). The canalization and migration capacities were evaluated by tube formation and transwell migration assay. Protein (immunofluorescence and Western blot) and mRNA (qPCR) expressions were measured in 24-h-cultured HUVECs for vascular endothelial growth factor-A (VEGF-A), vascular endothelial growth factor receptor (VEGFR)-1, and VEGFR-2. RESULTS IL-8 significantly promoted and XTSJ decoction inhibited HUVEC tube formation and migration. Links between IL-8 regulation and XTSJ decoction were found in tube formation and migration assays. IL-8 upregulated and XTSJ decoction downregulated VEGF-A, VEGFR-1, and VEGFR-2 protein levels. XTSJ decoction inhibited IL-8-induced VEGF-A and VEGFR-1 protein expressions. Similarly, IL-8 promoted VEGF-A, VEGFR-1, and VEGFR-2 mRNA levels; however, XTSJ decoction inhibited only VEGF-A mRNA. Interestingly, XTSJ decoction inhibited IL-8-induced VEGFR-1 and VEGFR-2 mRNA expression. CONCLUSION XTSJ decoction might inhibit angiogenesis in gastric cancer through IL-8-linked regulation of the VEGF pathway.
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Affiliation(s)
- Jun Shi
- Department of Traditional Chinese Medicine, Shanghai Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai 200003, China.
| | - Ye Lu
- Department of Traditional Chinese Medicine, Shanghai Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai 200003, China
| | - Pinkang Wei
- Department of Traditional Chinese Medicine, Shanghai Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai 200003, China
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