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Chen S, Zhao H, Tian Y, Wu Q, Zhang J, Liu S, Zhang Y, Wu Y, Li B, Chen S, Wang Z, Xiao R, Ji X. Antagonizing roles of SHP1 in the pathogenesis of Helicobacter pylori infection. Helicobacter 2024; 29:e13066. [PMID: 38468575 DOI: 10.1111/hel.13066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 02/16/2024] [Accepted: 02/29/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND SHP1 has been documented as a tumor suppressor and it was thought to play an antagonistic role in the pathogenesis of Helicobacter pylori infection. In this study, the exact mechanism of this antagonistic action was studied. MATERIALS AND METHODS AGS, MGC803, and GES-1 cells were infected with H. pylori, intracellular distribution changes of SHP1 were first detected by immunofluorescence. SHP1 overexpression and knockdown were then constructed in these cells to investigate its antagonistic roles in H. pylori infection. Migration and invasion of infected cells were detected by transwell assay, secretion of IL-8 was examined via ELISA, the cells with hummingbird-like alteration were determined by microexamination, and activation of JAK2/STAT3, PI3K/Akt, and ERK pathways were detected by immunoblotting. Mice infection model was established and gastric pathological changes were evaluated. Finally, the SHP1 activator sorafenib was used to analyze the attenuating effect of SHP1 activation on H. pylori pathogenesis in vitro and in vivo. RESULTS The sub-localization of SHP1 changed after H. pylori infection, specifically that the majority of the cytoplasmic SHP1 was transferred to the cell membrane. SHP1 inhibited H. pylori-induced activation of JAK2/STAT3 pathway, PI3K/Akt pathway, nuclear translocation of NF-κB, and then reduced EMT, migration, invasion, and IL-8 secretion. In addition, SHP1 inhibited the formation of CagA-SHP2 complex by dephosphorylating phosphorylated CagA, reduced ERK phosphorylation and the formation of CagA-dependent hummingbird-like cells. In the mice infection model, gastric pathological changes were observed and increased IL-8 secretion, indicators of cell proliferation and EMT progression were also detected. By activating SHP1 with sorafenib, a significant curative effect against H. pylori infection was obtained in vitro and in vivo. CONCLUSIONS SHP1 plays an antagonistic role in H. pylori pathogenesis by inhibiting JAK2/STAT3 and PI3K/Akt pathways, NF-κB nuclear translocation, and CagA phosphorylation, thereby reducing cell EMT, migration, invasion, IL-8 secretion, and hummingbird-like changes.
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Affiliation(s)
- Si Chen
- Binzhou Medical University, Yantai, China
| | | | - Yue Tian
- Binzhou Medical University, Yantai, China
- Binzhou People's Hospital, Binzhou, China
| | - Qianwen Wu
- Binzhou Medical University, Yantai, China
| | | | | | - Ying Zhang
- Binzhou Medical University, Yantai, China
| | - Yulong Wu
- Binzhou Medical University, Yantai, China
| | - Boqing Li
- Binzhou Medical University, Yantai, China
| | - Shu Chen
- Binzhou Medical University, Yantai, China
| | | | - Ruoyu Xiao
- Binzhou Medical University, Yantai, China
| | - Xiaofei Ji
- Binzhou Medical University, Yantai, China
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Jin D, Huang K, Xu M, Hua H, Ye F, Yan J, Zhang G, Wang Y. Deoxycholic acid induces gastric intestinal metaplasia by activating STAT3 signaling and disturbing gastric bile acids metabolism and microbiota. Gut Microbes 2022; 14:2120744. [PMID: 36067404 PMCID: PMC9467587 DOI: 10.1080/19490976.2022.2120744] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Intestinal metaplasia (IM) is the inevitable precancerous stage to develop intestinal-type gastric cancer (GC). Deoxycholic acid (DCA) is the main bile acid (BA) component of duodenogastric reflux and has shown an increased concentration during the transition from chronic gastritis to IM associated with continued STAT3 activation. However, the mechanisms underlying how DCA facilitates IM in the gastric epithelium need exploration. We evaluated IM and bile reflux in corpus tissues from 161 subjects undergoing GC screening. Cell survival and proliferation, proinflammatory cytokine expression and TGR5/STAT3/KLF5 axis activity were measured in normal human gastric cells, cancer cells, and organoid lines derived from C57BL/6, FVB/N and insulin-gastrin (INS-GAS) mice treated with DCA. The effects of DCA on IM development were determined in INS-GAS mice with long-term DCA supplementation, after which the gastric bacterial and BA metabolic profiles were measured by 16S rRNA gene sequencing and LC-MS. We revealed a BA-triggered TGR5/STAT3/KLF5 pathway in human gastric IM tissues. In gastric epithelial cells, DCA promoted proliferation and apoptotic resistance, upregulated proinflammatory cytokines and IM markers, and facilitated STAT3 phosphorylation, nuclear accumulation and DNA binding to the KLF5 promoter. DCA triggered STAT3 signaling and the downstream IM marker KLF5 in mouse gastric organoids in vitro and in vivo. In INS-GAS mice, DCA promoted the accumulation of serum total BAs and accelerated the stepwise development of gastric IM and dysplasia. DCA induced gastric environmental alterations involving abnormal BA metabolism and microbial dysbiosis, in which the Gemmobacter and Lactobacillus genera were specifically enriched. Lactobacillus genus enrichment was positively correlated with increased levels of GCA, CA, T-α-MCA, TCA and β-MCA in DCA-administrated INS-GAS mice. DCA promotes nuclear STAT3 phosphorylation, which mediates KLF5 upregulation associated with gastric inflammation and IM development. DCA disturbs the gastric microbiome and BA metabolism homeostasis during IM induction.
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Affiliation(s)
- Duochen Jin
- Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, NanjingChina,First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Keting Huang
- Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, NanjingChina,First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Miao Xu
- Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, NanjingChina,First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Hongjin Hua
- Department of Pathology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Feng Ye
- Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, NanjingChina
| | - Jin Yan
- Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, NanjingChina
| | - Guoxin Zhang
- Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, NanjingChina,First Clinical Medical College, Nanjing Medical University, Nanjing, China,CONTACT Guoxin Zhang
| | - Yun Wang
- Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, NanjingChina,Yun Wang Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, Nanjing China
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3
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Morgan RN, Saleh SE, Farrag HA, Aboulwafa MM. Bacterial cyclomodulins: types and roles in carcinogenesis. Crit Rev Microbiol 2021; 48:42-66. [PMID: 34265231 DOI: 10.1080/1040841x.2021.1944052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Various studies confirmed that bacterial infections contribute to carcinogenesis through the excessive accumulation of reactive oxygen species (ROS) and the expression of toxins that disrupt the cell cycle phases, cellular regulatory mechanisms and stimulate the production of tumorigenic inflammatory mediators. These toxins mimic carcinogens which act upon key cellular targets and result in mutations and genotoxicities. The cyclomodulins are bacterial toxins that incur cell cycle modulating effects rendering the expressing bacterial species of high carcinogenic potentiality. They are either cellular proliferating or cell cycle arrest cyclomodulins. Notably, cyclomodulins expressing bacterial species have been linked to different human carcinomas. For instance, Escherichia coli species producing the colibactin were highly prevalent among colorectal carcinoma patients, CagA+ Helicobacter pylori species were associated with MALT lymphomas and gastric carcinomas and Salmonella species producing CdtB were linked to hepatobiliary carcinomas. These species stimulated the overgrowth of pre-existing carcinomas and induced hyperplasia in in vivo animal models suggesting a role for the cyclomodulins in carcinogenesis. Wherefore, the prevalence and mode of action of these toxins were the focus of many researchers and studies. This review discusses different types of bacterial cyclomodulins highlighting their mode of action and possible role in carcinogenesis.
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Affiliation(s)
- Radwa N Morgan
- Drug radiation research Department, Egyptian Atomic Energy Authority (EAEA), National Center for Radiation Research and Technology (NCRRT), Cairo, Egypt
| | - Sarra E Saleh
- Faculty of Pharmacy, Microbiology and Immunology Department, Ain Shams University, Cairo, Egypt
| | - Hala A Farrag
- Drug radiation research Department, Egyptian Atomic Energy Authority (EAEA), National Center for Radiation Research and Technology (NCRRT), Cairo, Egypt
| | - Mohammad M Aboulwafa
- Faculty of Pharmacy, Microbiology and Immunology Department, Ain Shams University, Cairo, Egypt.,Faculty of Pharmacy, King Salman International University, Ras-Sedr, Egypt
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4
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Claudin-Low Breast Cancer Inflammatory Signatures Support Polarization of M1-Like Macrophages with Protumoral Activity. Cancers (Basel) 2021; 13:cancers13092248. [PMID: 34067089 PMCID: PMC8125772 DOI: 10.3390/cancers13092248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 12/16/2022] Open
Abstract
We previously reported that triple-negative breast cancer (BRCA) cells overexpress the cytokines GM-CSF, G-CSF, MCP-1, and RANTES, and when monocytes were 3-D co-cultured with them, M1-like macrophages were generated with the ability to induce aggressive features in luminal BRCA cell lines. These include upregulation of mesenchymal and stemness markers and invasion. In this study, we stimulated peripheral blood monocytes with the four cytokines and confirmed their capacity to generate protumoral M1-like macrophages. Using the METABRIC BRCA database, we observed that GM-CSF, MCP-1, and RANTES are associated with triple-negative BRCA and reduced overall survival, particularly in patients under 55 years of age. We propose an extended M1-like macrophage proinflammatory signature connected with these three cytokines. We found that the extended M1-like macrophage signature coexists with monocyte/macrophage, Th1 immune response, and immunosuppressive signatures, and all are enriched in claudin-low BRCA samples, and correlate with reduced patient overall survival. Furthermore, we observed that all these signatures are also present in mesenchymal carcinomas of the colon (COAD) and bladder (BLCA). The claudin-low tumor subtype has an adverse clinical outcome and remains poorly understood. This study places M1 macrophages as potential protumoral drivers in already established cancers, and as potential contributors to claudin-low aggressiveness and poor prognosis.
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Helicobacter pylori outer membrane vesicles induce expression and secretion of oncostatin M in AGS gastric cancer cells. Braz J Microbiol 2021; 52:1057-1066. [PMID: 33851342 DOI: 10.1007/s42770-021-00490-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 04/06/2021] [Indexed: 01/01/2023] Open
Abstract
Helicobacter pylori, a human pathogen that colonizes the stomach of 50% of the world's population, is associated with gastritis, gastric adenocarcinoma, and mucosa-associated lymphoid tissue (MALT) lymphoma. Diseases are characterized by severe inflammatory responses in the stomach that are induced by various chemokines and cytokines. Recently, oncostatin M (OSM), an IL-6 family cytokine, was detected in early gastric cancer biopsies. In this study, we showed that Helicobacter pylori induced secretion of OSM and overexpression of its type II receptor OSMRβ (OSM/OSMRβ) in a human gastric adenocarcinoma cell line (AGS) over 24 h of infection. Furthermore, we showed that the induction of OSM and OSMRβ was carried out by heat-sensitive Helicobacter pylori outer membrane vesicle (OMV) protein. Collectively, our results established, for the first time, a direct relation between Helicobacter pylori OMVs and the OSM/OSMRβ signaling axis.
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6
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Park JM, Han YM, Park YJ, Hahm KB. Dietary intake of walnut prevented <i>Helicobacter pylori</i>-associated gastric cancer through rejuvenation of chronic atrophic gastritis. J Clin Biochem Nutr 2021. [DOI: 10.3164/jcbn.20-103
expr 895872307 + 836645000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Affiliation(s)
| | | | | | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University
- Medpactor Research Institute, Medpacto
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7
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Park JM, An JM, Han YM, Surh YJ, Hwang SJ, Kim SJ, Hahm KB. Walnut polyphenol extracts inhibit Helicobacter pylori-induced STAT3 Tyr705 phosphorylation through activation of PPAR-γ and SOCS1 induction. J Clin Biochem Nutr 2021. [DOI: 10.3164/jcbn.20-105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | - Jeong Min An
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University
| | | | | | | | | | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University
- Medpacto Research Institute, Medpacto
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8
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Park JM, Han YM, Park YJ, Hahm KB. Dietary intake of walnut prevented Helicobacter pylori-associated gastric cancer through rejuvenation of chronic atrophic gastritis. J Clin Biochem Nutr 2020; 68:37-50. [PMID: 33536711 PMCID: PMC7844657 DOI: 10.3164/jcbn.20-103] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 07/07/2020] [Indexed: 12/16/2022] Open
Abstract
The fact that Fat-1 transgenic mice producing n-3 polyunsaturated fatty acids via overexpressed 3-desaturase significantly mitigated Helicobacter pylori (H. pylori)-associated gastric tumorigenesis through rejuvenation of chronic atrophic gastritis (CAG) led us to study whether dietary intake of walnut plentiful of n-3 PUFAs can be nutritional intervention to prevent H. pylori-associated gastric cancer. In our model that H. pylori-initiated, high salt diet-promoted gastric carcinogenesis, pellet diet containing 100 mg/kg and 200 mg/kg walnut was administered up to 36 weeks. As results, control mice (24 weeks) developed significant chronic CAG, in which dietary walnuts significantly ameliorated chronic atrophic gastritis. Expressions of COX-2/PGE2/NF-κB/c-Jun, elevated in 24 weeks control group, were all significantly decreased with walnut (p<0.01). Tumor suppressive enzyme, 15-PGDH, was significantly preserved with walnut. Control mice (36 weeks) all developed significant tumors accompanied with severe CAG. However, significantly decreased tumorigenesis was noted in group treated with walnuts, in which expressions of COX-2/PGE2/NF-κB/IL-6/STAT3, all elevated in 36 weeks control group, were significantly decreased with walnut. Defensive proteins including HO-1, Nrf2, and SOCS-1 were significantly increased in walnut group. Proliferative index as marked with Ki-67 and PCNA was significantly regulated with walnut relevant to 15-PGDH preservation. Conclusively, walnut can be an anticipating nutritional intervention against H. pylori.
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Affiliation(s)
- Jong Min Park
- Daejeon University School of Oriental Medicine, Daehak-ro 62, Dong-gu, Daejeon 34520, Korea
| | - Young Min Han
- Western Seoul Center, Korea Basic Science Institute, University-Industry Cooperate Building, 150 Bugahyeon-ro, Seodaemun-gu, Seoul 03759, Korea
| | - Yong Jin Park
- GI Medics, Kwanglim Bldg 5F, Daelim-dong, Yeongdeungpo-gu, Seoul 08513, Korea
| | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University, 330 Pangyo-dong, Bundang-gu, Seongnam13497, Korea.,Medpactor Research Institute, Medpacto, Myungdal-ro 92, Seocho-gu, Seoul 06668, Korea
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9
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Park JM, An JM, Han YM, Surh YJ, Hwang SJ, Kim SJ, Hahm KB. Walnut polyphenol extracts inhibit Helicobacter pylori-induced STAT3 Tyr705 phosphorylation through activation of PPAR-γ and SOCS1 induction. J Clin Biochem Nutr 2020; 67:248-256. [PMID: 33293765 PMCID: PMC7705089 DOI: 10.3164/jcbn.20-89] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/13/2020] [Indexed: 12/14/2022] Open
Abstract
The health beneficial effects of walnut plentiful of n-3 polyunsaturated fatty acid had been attributed to its anti-inflammatory and anti-oxidative properties against various clinical diseases. Since we have published Fat-1 transgenic mice overexpressing 3-desaturase significantly mitigated Helicobacter pylori (H. pylori)-associated gastric pathologies including rejuvenation of chronic atrophic gastritis and prevention of gastric cancer, in this study, we have explored the underlying molecular mechanisms of walnut against H. pylori infection. Fresh walnut polyphenol extracts (WPE) were found to suppress the phosphorylation and nuclear translocation of signal transducer and activator of transcription 3 (STAT3) induced by H. pylori infection in RGM-1 gastric mucosal cells. Notably, H. pylori infection significantly decreased suppressor of cytokine signaling 1 (SOCS1), but WPE induced expression of SOCS1, by which the suppressive effect of walnut extracts on STAT3Tyr705 phosphorylation was not seen in SOCS1 KO cells. WPE induced significantly increased nuclear translocation nuclear translocation of PPAR-γ in RGM1 cells, by which PPAR-γ KO inhibited transcription of SOCS1 and suppressive effect of WPE on p-STAT3Tyr705 was not seen. WPE inhibited the expression of c-Myc and IL-6/IL-6R signaling, which was attenuated in the RGM1 cells harboring SOCS1 specific siRNA. Conclusively, WPE inhibits H. pylori-induced STAT3 phosphorylation in a PPAR-γ and SOCS1-dependent manner.
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Affiliation(s)
- Jong Min Park
- College of Oriental Medicine, Daejeon University, Daehak-ro 62, Dong-gu, Daejeon, 34520, Korea
| | - Jeong Min An
- CHA Cancer Preventive Research Center, CHA Bio Complex, 330 Pangyo-dong, Bundang-gu, Seongnam, 13497, Korea
| | - Young Min Han
- Western Seoul Center, Korea Basic Science Institute, University-Industry Cooperate Building, 150 Bugahyeon-ro, Seodaemun-gu, Seoul, 03759, Korea
| | - Young Joon Surh
- College of Pharmacy Seoul National University, Seoul, 08826, Korea
| | - Sun Jin Hwang
- Medpacto Research Institute, Medpacto Inc., 92, Myeongdal-ro, Seocho-gu, Seoul, 06668, Korea
| | - Seong Jin Kim
- Medpacto Research Institute, Medpacto Inc., 92, Myeongdal-ro, Seocho-gu, Seoul, 06668, Korea
| | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, 330 Pangyo-dong, Bundang-gu, Seongnam, 13497, Korea.,Medpacto Research Institute, Medpacto Inc., 92, Myeongdal-ro, Seocho-gu, Seoul, 06668, Korea
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10
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Piao JY, Kim SJ, Kim DH, Park JH, Park SA, Han HJ, Na HK, Yoon K, Lee HN, Kim N, Hahm KB, Surh YJ. Helicobacter pylori infection induces STAT3 phosphorylation on Ser727 and autophagy in human gastric epithelial cells and mouse stomach. Sci Rep 2020; 10:15711. [PMID: 32973302 PMCID: PMC7519032 DOI: 10.1038/s41598-020-72594-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 08/31/2020] [Indexed: 01/05/2023] Open
Abstract
Helicobacter pylori (H. pylori) infection is considered as one of the principal risk factors of gastric cancer. Constitutive activation of the signal transducer and activator of transcription 3 (STAT3) plays an important role in inflammation-associated gastric carcinogenesis. In the canonical STAT3 pathway, phosphorylation of STAT3 on Tyr705 is a major event of STAT3 activation. However, recent studies have demonstrated that STAT3 phosphorylated on Ser727 has an independent function in mitochondria. In the present study, we found that human gastric epithelial AGS cells infected with H. pylori resulted in localization of STAT3 phosphorylated on Ser727 (P-STAT3Ser727), predominantly in the mitochondria. Notably, H. pylori-infected AGS cells exhibited the loss of mitochondrial integrity and increased expression of the microtubule-associated protein light chain 3 (LC3), the autophagosomal membrane-associated protein. Treatment of AGS cells with a mitophagy inducer, carbonyl cyanide 3-chlorophenylhydrazone (CCCP), resulted in accumulation of P-STAT3Ser727 in mitochondria. In addition, the elevated expression and mitochondrial localization of LC3 induced by H. pylori infection were attenuated in AGS cells harboring STAT3 mutation defective in Ser727 phosphorylation (S727A). We also observed that both P-STAT3Ser727 expression and LC3 accumulation were increased in the mitochondria of H. pylori-inoculated mouse stomach.
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Affiliation(s)
- Juan-Yu Piao
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Su-Jung Kim
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Do-Hee Kim
- Department of Chemistry, College of Convergence and Integrated Science, Kyonggi University, Suwon, Gyeonggi-do, 16227, South Korea
| | - Ji Hyun Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, 03080, South Korea
| | - Sin-Aye Park
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan, 31538, South Korea
| | - Hyeong-Jun Han
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Hye-Kyung Na
- Department of Food Science and Biotechnology, College of Knowledge-Based Services Engineering, Sungshin Women's University, Seoul, 01133, South Korea
| | - Kichul Yoon
- Department of Internal Medicine and Digestive Disease Research Institute, Wonkwang University Sanbon Hospital, Gunpo, Gyeonggi-do, 15865, South Korea
| | - Ha-Na Lee
- Laboratory of Immunology, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD, 20993, USA
| | - Nayoung Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, 03080, South Korea
| | - Ki Baik Hahm
- Digestive Disease Center, CHA University Bundang Medical Center, Seongnam, Gyunggi-do, 13496, South Korea
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea. .,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, South Korea.
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11
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Huo R, Chu Q, Zhao X, Liu X, Xu T. Molecular evolution and functional characterization of SOCS3a and SOCS3b in miiuy croaker (Miichthys miiuy). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 110:103723. [PMID: 32387555 DOI: 10.1016/j.dci.2020.103723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/26/2020] [Accepted: 04/26/2020] [Indexed: 06/11/2023]
Abstract
The suppressor of cytokine signaling 3 (SOCS3), as a negative regulator in inferferon (IFN) signaling pathways in mammals, has a vital role in immune systems. However, studies on the function of SOCS3 in lower vertebrates are limited. In this study, we identified SOCS3a and fish-specific SOCS3b gene in miiuy croaker. Sequence analysis results showed that SOCS3a and SOCS3b were evolutionarily conservative in fish. Expression analysis indicated that miiuy croaker SOCS3a and SOCS3b (mmSOCS3a and mmSOCS3b) were expressed in all of the tested miiuy croaker tissues, thus revealing the potential ability to perceive poly (I:C) stimulation. Further functional experiments showed that mmSOCS3a and mmSOCS3b could inhibit the IFNγ- and IFNα-induced ISRE reporter activation, respectively. Accordingly, the investigation of mmSOCS3a and mmSOCS3b can provide insights into fish SOCS3 and a basis for future research on the SOCS family of fish immune systems.
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Affiliation(s)
- Ruixuan Huo
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Qing Chu
- Laboratory of Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266200, China; Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Xueyan Zhao
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Xuezhu Liu
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Tianjun Xu
- Laboratory of Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266200, China; Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China.
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12
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Liu Q, Ji S, Xia T, Liu J, Liu Z, Chen X, Zang ZJ. MCP-1 Priming Enhanced the Therapeutic Effects of Human Mesenchymal Stromal Cells on Contact Hypersensitivity Mice by Activating the COX2-PGE2/STAT3 Pathway. Stem Cells Dev 2020; 29:1073-1083. [PMID: 32552417 DOI: 10.1089/scd.2020.0035] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) have become a promising treatment for inflammation-related diseases, and their therapeutic efficacy mainly depends on crosstalk between MSCs and inflammation. However, methods to improve the immunosuppressive efficiency of MSCs in different diseases still need to be developed. In this study, we investigated whether preconditioning MSCs with a disease-related inflammatory cytokine could increase their immunosuppressive properties and improve therapeutic efficacy. In a contact hypersensitivity (CHS) mouse model, inflammatory profile screening revealed that among all tested cytokines, monocyte chemotactic protein-1 (MCP-1) exhibited the most significantly increased level in the local microenvironment. As expected, MSCs preconditioned with MCP-1 (P-MSCs) exhibited an enhanced ability to downregulate proinflammatory cytokine secretion, induce regulatory T cells, inhibit T cell proliferation, and polarize M2-type macrophages. In vivo experiments showed that P-MSCs alleviated ear swelling and local proinflammatory cytokine production more effectively than control MSCs. Mechanistically, MCP-1 could significantly activate the signal transducer and activator of transcription 3 (STAT3) signaling pathway and induce the expression of cyclooxygenase-2 (COX2) and prostaglandin E2 (PGE2) in MSCs. STAT3 inhibitor reversed the MCP-1-mediated enhancing of their immunosuppressive ability. Collectively, our findings demonstrate that CHS-related MCP-1 preconditioning enhanced the immunomodulatory effects of MSCs and improved their therapeutic efficacy in CHS. Enhancing the immunosuppressive efficacy of MSCs by preconditioning with certain disease-related inflammatory cytokines may provide a new strategy for MSC-based therapies for inflammatory diseases.
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Affiliation(s)
- Qiuli Liu
- The Biotherapy Center, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Infertility and Sexual Medicine, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Suyun Ji
- Department of Dermatology, Dermatology Hospital of Southern Medical University, Southern Medical University, Guangzhou, China
| | - Tingting Xia
- Department of Infertility and Sexual Medicine, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jialing Liu
- The Biotherapy Center, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhuojie Liu
- Department of Infertility and Sexual Medicine, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyong Chen
- The Biotherapy Center, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Key Laboratory for Stem Cells and Tissue Engineering, Center for Stem Cell Biology and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - Zhi-Jun Zang
- The Biotherapy Center, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Infertility and Sexual Medicine, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Mohan CD, Rangappa S, Preetham HD, Chandra Nayaka S, Gupta VK, Basappa S, Sethi G, Rangappa KS. Targeting STAT3 signaling pathway in cancer by agents derived from Mother Nature. Semin Cancer Biol 2020; 80:157-182. [DOI: 10.1016/j.semcancer.2020.03.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/23/2020] [Accepted: 03/28/2020] [Indexed: 02/07/2023]
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14
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Alarcón-Millán J, Martínez-Carrillo DN, Peralta-Zaragoza O, Fernández-Tilapa G. Regulation of GKN1 expression in gastric carcinogenesis: A problem to resolve (Review). Int J Oncol 2019; 55:555-569. [PMID: 31322194 DOI: 10.3892/ijo.2019.4843] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 07/04/2019] [Indexed: 11/05/2022] Open
Abstract
Gastrokine 1 (GKN1) is a protein expressed on the surface mucosa cells of the gastric antrum and fundus, which contributes to maintaining gastric homeostasis, inhibits inflammation and is a tumor suppressor. The expression of GKN1 decreases in mucosa that are either inflamed or infected by Helicobacter pylori, and is absent in gastric cancer. The measurement of circulating GKN1 concentration, the protein itself, or the mRNA in gastric tissue may be of use for the early diagnosis of cancer. The mechanisms that modulate the deregulation or silencing of GKN1 expression have not been completely described. The modification of histones, methylation of the GKN1 promoter, or proteasomal degradation of the protein have been detected in some patients; however, these mechanisms do not completely explain the absence of GKN1 or the reduction in GKN1 levels. Only NKX6.3 transcription factor has been shown to be a positive modulator of GKN1 transcription, although others also have an affinity with sequences in the promoter of this gene. While microRNAs (miRNAs) are able to directly or indirectly regulate the expression of genes at the post‑transcriptional level, the involvement of miRNAs in the regulation of GKN1 has not been reported. The present review analyzes the information reported on the determination of GKN1 expression and the regulation of its expression at the transcriptional, post‑transcriptional and post‑translational levels; it proposes an integrated model that incorporates the regulation of GKN1 expression via transcription factors and miRNAs in H. pylori infection.
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Affiliation(s)
- Judit Alarcón-Millán
- Clinical Research Laboratory, Faculty of Biological Chemical Sciences, Guerrero Autonomous University, Chilpancingo, Guerrero 39070, México
| | - Dinorah Nashely Martínez-Carrillo
- Clinical Research Laboratory, Faculty of Biological Chemical Sciences, Guerrero Autonomous University, Chilpancingo, Guerrero 39070, México
| | - Oscar Peralta-Zaragoza
- Direction of Chronic Infections and Cancer, Research Center in Infection Diseases, National Institute of Public Health, Cuernavaca, Morelos 62100, México
| | - Gloria Fernández-Tilapa
- Clinical Research Laboratory, Faculty of Biological Chemical Sciences, Guerrero Autonomous University, Chilpancingo, Guerrero 39070, México
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15
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Zhang JX, He WL, Feng ZH, Chen DL, Gao Y, He Y, Qin K, Zheng ZS, Chen C, Weng HW, Yun M, Ye S, Xu RH, Xie D. A positive feedback loop consisting of C12orf59/NF-κB/CDH11 promotes gastric cancer invasion and metastasis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:164. [PMID: 30987656 PMCID: PMC6463669 DOI: 10.1186/s13046-019-1114-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 02/19/2019] [Indexed: 12/31/2022]
Abstract
Background Metastasis remains the main cause of cancer-related death for gastric cancer (GC) patients, but the mechanisms are poorly understood. Using The Cancer Genome Atlas (TCGA) data base and bioinformatics analyses, we identified C12orf59 might act as a potential oncogenic protein in GC. Methods We investigate the expression pattern and clinical significance of C12orf59 in two independent cohorts of GC samples. In the training cohort, we used the X-tile program software to generate the optimal cutoff value for C12orf59 expression in order to classify patients accurately according to clinical outcome. In the validation cohort, this derived cutoff score was applied to exam the association of C12orf59 expression with survival outcome. A series of in vivo and in vitro assays were then performed to investigate the function of C12orf59 in GC. Results C12orf59 was significantly upregulated, and associated with poor survival outcome in two cohorts of GC samples. Gain- and loss of- function studies demonstrated C12orf59 promotes GC cell invasive and metastatic capacity both in vitro and in vivo, and induces epithelial–mesenchymal transition and angiogenesis. Mechanically, C12orf59 exerts oncogenic functions by up-regulating CDH11 expression via NF-κB signaling. Interesting, CDH11 could in turn promote NF-κB bind to C12orf59’s promoter and form a positive feedback loop to sustain the metastatic ability of GC cells. Additionally, downregulation of miR-654-5p is another important mechanism for C12orf59 overexpression in GC. Conclusion Our finding suggested the newly identified C12orf59/NF-κB/CDH11 feedback loop may represent a new strategy for GC treatment. Electronic supplementary material The online version of this article (10.1186/s13046-019-1114-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jia-Xing Zhang
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, No. 651, Dongfeng Road East, 510060, Guangzhou, Guangdong Province, People's Republic of China.,Department of Oncology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Wei-Ling He
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Zi-Hao Feng
- Department of Urology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Dong-Liang Chen
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, No. 651, Dongfeng Road East, 510060, Guangzhou, Guangdong Province, People's Republic of China
| | - Ying Gao
- Department of Oncology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Ying He
- Department of Oncology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Kai Qin
- Department of Extracorporeal Circulation, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Zhou-San Zheng
- Department of Oncology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Cui Chen
- Department of Oncology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Hui-Wen Weng
- Department of Oncology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Miao Yun
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, No. 651, Dongfeng Road East, 510060, Guangzhou, Guangdong Province, People's Republic of China
| | - Sheng Ye
- Department of Oncology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Rui-Hua Xu
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, No. 651, Dongfeng Road East, 510060, Guangzhou, Guangdong Province, People's Republic of China.
| | - Dan Xie
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, No. 651, Dongfeng Road East, 510060, Guangzhou, Guangdong Province, People's Republic of China.
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16
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Wang Q, Wang C, Chen J. NLRP6, decreased in gastric cancer, suppresses tumorigenicity of gastric cancer cells. Cancer Manag Res 2018; 10:6431-6444. [PMID: 30568504 PMCID: PMC6267737 DOI: 10.2147/cmar.s182980] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Helicobacter pylori (H. pylori) infection has been regarded as a main risk factor for gastric cancer. Nod-like receptor pyrin domain-containing protein 6 (NLRP6), a component of inflammasome, has been linked to colorectal tumorigenesis. Here, we aimed to evaluate NLRP6 expression profile and functions in gastric cancer. Materials and methods We examined NLRP6 expression in gastric cancer and adjacent normal gastric tissues. The biological functions and mechanism of NLRP6 overexpression in gastric cancer cells were investigated. Results Downregulated NLRP6 expression in human gastric cancer significantly correlated with H. pylori infection, tumor size, TNM stage, lymph node metastasis, and overall survival. NLRP6 overexpression in gastric cancer cells led to a significant decrease in cell proliferation, migration, and invasion, as well as a notable increase in cell apoptosis, whereas NLRP6 knockdown had opposing effects. In addition, NLRP6 overexpression significantly repressed STAT3 phosphorylation and the transcription of its target genes, Bcl-2 and MMP-2. Moreover, forkhead box O3 (FOXO3), a transcription factor regulated by H. pylori, was demonstrated as an upstream regulator of NLRP6 transcription. Conclusion Our study may provide insight into the understanding of NLRP6 as a tumor suppressor and implicate the potential application of NLRP6 for gastric cancer treatment.
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Affiliation(s)
- Qingqing Wang
- Department of Gastroenterology, Fengxian Hospital, Anhui University of Science and Technology, Shanghai 201499, China
| | - Chunmei Wang
- Department of Gastroenterology, Fengxian Hospital, Southern Medical University, Shanghai 201499, China, .,Department of Gastroenterology, Shanghai Sixth People's Hospital (South), Shanghai Jiaotong University, Shanghai 201499, China,
| | - Jinlian Chen
- Department of Gastroenterology, Fengxian Hospital, Southern Medical University, Shanghai 201499, China, .,Department of Gastroenterology, Shanghai Sixth People's Hospital (South), Shanghai Jiaotong University, Shanghai 201499, China,
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17
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Yoshida T, Maruyama T, Miura M, Inoue M, Fukuda K, Shimazu K, Taguchi D, Kanda H, Oshima M, Iwabuchi Y, Shibata H. Dietary intake of pyrolyzed deketene curcumin inhibits gastric carcinogenesis. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.09.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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18
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Zhen Y, Wu Q, Ding Y, Zhang W, Zhai Y, Lin X, Weng Y, Guo R, Zhang Y, Feng J, Lei Y, Chen J. Exogenous hydrogen sulfide promotes hepatocellular carcinoma cell growth by activating the STAT3-COX-2 signaling pathway. Oncol Lett 2018; 15:6562-6570. [PMID: 29725404 DOI: 10.3892/ol.2018.8154] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Accepted: 04/21/2017] [Indexed: 12/20/2022] Open
Abstract
The effects of hydrogen sulfide (H2S) on cancer are controversial. Our group previously demonstrated that exogenous H2S promotes the development of cancer via amplifying the activation of the nuclear factor-κB signaling pathway in hepatocellular carcinoma (HCC) cells (PLC/PRF/5). The present study aimed to further investigate the hypothesis that exogenous H2S promotes PLC/PRF/5 cell proliferation and migration, and inhibits apoptosis by activating the signal transducer and activator of transcription 3 (STAT3)-cyclooxygenase-2 (COX-2) signaling pathway. PLC/PRF/5 cells were treated with 500 µmol/l NaHS (a donor of H2S) for 24 h. The expression levels of phosphorylated (p)-STAT3, STAT3, cleaved caspase-3 and COX-2 were measured by western blot assay. Cell viability was detected by Cell Counting kit-8 assay. Apoptotic cells were observed by Hoechst 33258 staining. The expression of STAT3 and COX-2 messenger RNA (mRNA) was detected by semiquantitative reverse transcription-polymerase chain reaction. The production of vascular endothelial growth factor (VEGF) was evaluated by ELISA. The results indicated that treatment of PLC/PRF/5 cells with 500 µmol/l NaHS for 24 h markedly increased the expression levels of p-STAT3 and STAT3 mRNA, leading to COX-2 and COX-2 mRNA overexpression, VEGF induction, decreased cleaved caspase-3 production, increased cell viability and migration, and decreased number of apoptotic cells. However, co-treatment of PLC/PRF/5 cells with 500 µmol/l NaHS and 30 µmol/l AG490 (an inhibitor of STAT3) or 20 µmol/l NS-398 (an inhibitor of COX-2) for 24 h significantly reverted the effects induced by NaHS. Furthermore, co-treatment of PLC/PRF/5 cells with 500 µmol/l NaHS and 30 µmol/l AG490 markedly decreased the NaHS-induced increase in the expression level of COX-2. By contrast, co-treatment of PLC/PRF/5 cells with 500 µmol/l NaHS and 20 µmol/l NS-398 inhibited the NaHS-induced increase in the expression level of p-STAT3. In conclusion, the findings of the present study provide evidence that the STAT3-COX-2 signaling pathway is involved in NaHS-induced cell proliferation, migration, angiogenesis and anti-apoptosis in PLC/PRF/5 cells, and suggest that the positive feedback between STAT3 and COX-2 may serve a crucial role in hepatocellular carcinoma carcinogenesis.
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Affiliation(s)
- Yulan Zhen
- Department of Oncology, The Third People's Hospital of Dongguan Dongguan City, Guangdong 523326, P.R. China
| | - Qiaomei Wu
- Department of Anesthesiology, Oral Subsidiary Sun Yat-Sen University Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510700, P.R. China
| | - Yiqian Ding
- Grade 2013, Medical Imaging, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Wei Zhang
- Department of Cardiovasology and Cardiac Care Unit, Huangpu Division of The First Affiliated Hospital, Guangzhou, Guangdong 510080, P.R. China
| | - Yuansheng Zhai
- Department of Cardiovasology and Cardiac Care Unit, Huangpu Division of The First Affiliated Hospital, Guangzhou, Guangdong 510080, P.R. China
| | - Xiaoxiong Lin
- Department of Cardiovasology and Cardiac Care Unit, Huangpu Division of The First Affiliated Hospital, Guangzhou, Guangdong 510080, P.R. China
| | - Yunxia Weng
- Department of Cardiovasology and Cardiac Care Unit, Huangpu Division of The First Affiliated Hospital, Guangzhou, Guangdong 510080, P.R. China
| | - Ruixian Guo
- Department of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510700, P.R. China
| | - Ying Zhang
- Department of Oncology, Affiliated Hospital, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Jianqiang Feng
- Department of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510700, P.R. China
| | - Yiyan Lei
- Department of Thoracic Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Jingfu Chen
- Department of Cardiovascular Medicine and Dongguan Cardiovascular Institute, The Third People's Hospital of Dongguan City, Dongguan, Guangdong 523326, P.R. China
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19
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Koi M, Tseng-Rogenski SS, Carethers JM. Inflammation-associated microsatellite alterations: Mechanisms and significance in the prognosis of patients with colorectal cancer. World J Gastrointest Oncol 2018; 10:1-14. [PMID: 29375743 PMCID: PMC5767788 DOI: 10.4251/wjgo.v10.i1.1] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/29/2017] [Accepted: 12/06/2017] [Indexed: 02/05/2023] Open
Abstract
Microsatellite alterations within genomic DNA frameshift as a result of defective DNA mismatch repair (MMR). About 15% of sporadic colorectal cancers (CRCs) manifest hypermethylation of the DNA MMR gene MLH1, resulting in mono- and di-nucleotide frameshifts to classify it as microsatellite instability-high (MSI-H) and hypermutated, and due to frameshifts at coding microsatellites generating neo-antigens, produce a robust protective immune response that can be enhanced with immune checkpoint blockade. More commonly, approximately 50% of sporadic non-MSI-H CRCs demonstrate frameshifts at di- and tetra-nucleotide microsatellites to classify it as MSI-low/elevated microsatellite alterations at selected tetranucleotide repeats (EMAST) as a result of functional somatic inactivation of the DNA MMR protein MSH3 via a nuclear-to-cytosolic displacement. The trigger for MSH3 displacement appears to be inflammation and/or oxidative stress, and unlike MSI-H CRC patients, patients with MSI-L/EMAST CRCs show poor prognosis. These inflammatory-associated microsatellite alterations are a consequence of the local tumor microenvironment, and in theory, if the microenvironment is manipulated to lower inflammation, the microsatellite alterations and MSH3 dysfunction should be corrected. Here we describe the mechanisms and significance of inflammatory-associated microsatellite alterations, and propose three areas to deeply explore the consequences and prevention of inflammation's effect upon the DNA MMR system.
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Affiliation(s)
- Minoru Koi
- Division of Gastroenterology, Department of Internal Medicine and Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI 48109-5368, United States
| | - Stephanie S Tseng-Rogenski
- Division of Gastroenterology, Department of Internal Medicine and Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI 48109-5368, United States
| | - John M Carethers
- Division of Gastroenterology, Department of Internal Medicine and Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI 48109-5368, United States
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20
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Yum HW, Park J, Park HJ, Shin JW, Cho YY, Kim SJ, Kang JX, Surh YJ. Endogenous ω-3 Fatty Acid Production by fat-1 Transgene and Topically Applied Docosahexaenoic Acid Protect against UVB-induced Mouse Skin Carcinogenesis. Sci Rep 2017; 7:11658. [PMID: 28912452 PMCID: PMC5599646 DOI: 10.1038/s41598-017-11443-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 08/24/2017] [Indexed: 01/18/2023] Open
Abstract
The present study was intended to explore the effects of endogenously produced ω-3 polyunsaturated fatty acids (PUFAs) on ultraviolet B (UVB)-induced skin inflammation and photocarcinogenesis using hairless fat-1 transgenic mice harboring ω-3 desaturase gene capable of converting ω-6 to ω-3 PUFAs. Upon exposure to UVB irradiation, fat-1 transgenic mice exhibited a significantly reduced epidermal hyperplasia, oxidative skin damage, and photocarcinogenesis as compared to wild type mice. The transcription factor, Nrf2 is a master regulator of anti-inflammatory and antioxidant gene expression. While the protein expression of Nrf2 was markedly enhanced, the level of its mRNA transcript was barely changed in the fat-1 transgenic mouse skin. Topical application of docosahexaenoic acid (DHA), a representative ω-3 PUFA, in wild type hairless mice induced expression of the Nrf2 target protein, heme oxygenase-1 in the skin and protected against UVB-induced oxidative stress, inflammation and papillomagenesis. Furthermore, transient overexpression of fat-1 gene in mouse epidermal JB6 cells resulted in the enhanced accumulation of Nrf2 protein. Likewise, DHA treated to JB6 cells inhibited Nrf2 ubiquitination and stabilized it. Taken together, our results indicate that functional fat-1 and topically applied DHA potentiate cellular defense against UVB-induced skin inflammation and photocarcinogenesis through elevated activation of Nrf2 and upregulation of cytoprotective gene expression.
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Affiliation(s)
- Hye-Won Yum
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Jin Park
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Sciences and Technology, Seoul National University, Seoul, 08826, South Korea
| | - Hyun-Jung Park
- Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea
| | - Jun Wan Shin
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Yong-Yeon Cho
- Integrated Research Institute of Pharmaceutical Sciences, College of Pharmacy, The Catholic University of Korea, Bucheon, Gyeonggi-do, 420-743, South Korea
| | - Su-Jung Kim
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Sciences and Technology, Seoul National University, Seoul, 08826, South Korea
| | - Jing X Kang
- Laboratory for Lipid Medicine and Technology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02129, USA
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea. .,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea. .,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Sciences and Technology, Seoul National University, Seoul, 08826, South Korea. .,Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea.
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21
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H. pylori infection increases gastric mucosal COX2 and mTOR expression in chronic gastritis: Implications for cancer progression? PATHOPHYSIOLOGY 2017; 24:205-211. [DOI: 10.1016/j.pathophys.2017.05.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 05/25/2017] [Accepted: 05/26/2017] [Indexed: 01/04/2023] Open
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22
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Fourrier C, Remus-Borel J, Greenhalgh AD, Guichardant M, Bernoud-Hubac N, Lagarde M, Joffre C, Layé S. Docosahexaenoic acid-containing choline phospholipid modulates LPS-induced neuroinflammation in vivo and in microglia in vitro. J Neuroinflammation 2017; 14:170. [PMID: 28838312 PMCID: PMC5571638 DOI: 10.1186/s12974-017-0939-x] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/09/2017] [Indexed: 12/27/2022] Open
Abstract
Background Neuroinflammatory processes are considered a double-edged sword, having both protective and detrimental effects in the brain. Microglia, the brain’s resident innate immune cells, are a key component of neuroinflammatory response. There is a growing interest in developing drugs to target microglia and control neuroinflammatory processes. In this regard, docosahexaenoic acid (DHA), the brain’s n-3 polyunsaturated fatty acid, is a promising molecule to regulate pro-inflammatory microglia and cytokine production. Several works reported that the bioavailability of DHA to the brain is higher when DHA is acylated to phospholipid. In this work, we analyzed the anti-inflammatory activity of DHA-phospholipid, either acetylated at the sn-1 position (AceDoPC, a stable form thought to have superior access to the brain) or acylated with palmitic acid at the sn-1 position (PC-DHA) using a lipopolysaccharide (LPS)-induced neuroinflammation model both in vitro and in vivo. Methods In vivo, adult C57Bl6/J mice were injected intravenously (i.v.) with either AceDoPC or PC-DHA 24 h prior to LPS (i.p.). For in vitro studies, immortalized murine microglia cells BV-2 were co-incubated with DHA forms and LPS. AceDoPC and PC-DHA effect on brain or BV-2 PUFA content was assessed by gas chromatography. LPS-induced pro-inflammatory cytokines interleukin IL-1β, IL-6, and tumor necrosis factor (TNF) α production were measured by quantitative PCR (qPCR) or multiplex. IL-6 receptors and associated signaling pathway STAT3 were assessed by FACS analysis and western-blot in vitro. Results In vivo, a single injection of AceDoPC or PC-DHA decreased LPS-induced IL-6 production in the hippocampus of mice. This effect could be linked to their direct effect on microglia, as revealed in vitro. In addition, AceDoPC or PC-DHA reduced IL-6 receptor while only AceDoPC decreased IL-6-induced STAT3 phosphorylation. Conclusions These results highlight the potency of administered DHA—acetylated to phospholipids—to rapidly regulate LPS-induced neuroinflammatory processes through their effect on microglia. In particular, both IL-6 production and signaling are targeted by AceDoPC in microglia.
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Affiliation(s)
- Célia Fourrier
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France.,Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France
| | - Julie Remus-Borel
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France.,Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France
| | - Andrew D Greenhalgh
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France.,Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France
| | - Michel Guichardant
- CarMeN laboratory, INSERM UMR 1060, INRA UMR 1397, IMBL, INSA-Lyon, University of Lyon, Lyon, France
| | - Nathalie Bernoud-Hubac
- CarMeN laboratory, INSERM UMR 1060, INRA UMR 1397, IMBL, INSA-Lyon, University of Lyon, Lyon, France
| | - Michel Lagarde
- CarMeN laboratory, INSERM UMR 1060, INRA UMR 1397, IMBL, INSA-Lyon, University of Lyon, Lyon, France
| | - Corinne Joffre
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France. .,Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France.
| | - Sophie Layé
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France. .,Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076, Bordeaux, France.
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23
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Hennequart M, Pilotte L, Cane S, Hoffmann D, Stroobant V, Plaen ED, Van den Eynde B. Constitutive IDO1 Expression in Human Tumors Is Driven by Cyclooxygenase-2 and Mediates Intrinsic Immune Resistance. Cancer Immunol Res 2017; 5:695-709. [PMID: 28765120 DOI: 10.1158/2326-6066.cir-16-0400] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 05/02/2017] [Accepted: 06/30/2017] [Indexed: 12/16/2022]
Abstract
Tumors use various mechanisms to avoid immune destruction. Cyclooxygenase-2 (COX-2) expression may be a driver of immune suppression in melanoma, but the mechanisms involved remain elusive. Here, we show that COX-2 expression drives constitutive expression of indoleamine 2,3-dioxygenase 1 (IDO1) in human tumor cells. IDO1 is an immunosuppressive enzyme that degrades tryptophan. In a series of seven human tumor lines, constitutive IDO1 expression depends on COX-2 and prostaglandin E2 (PGE2), which, upon autocrine signaling through the EP receptor, activates IDO1 via the PKC and PI3K pathways. COX-2 expression itself depends on the MAPK pathway, which therefore indirectly controls IDO1 expression. Most of these tumors carry PI3K or MAPK oncogenic mutations, which may favor constitutive IDO1 expression. Celecoxib treatment promoted immune rejection of IDO1-expressing human tumor xenografts in immunodeficient mice reconstituted with human allogeneic lymphocytes. This effect was associated with a reduced expression of IDO1 in those ovarian SKOV3 tumors and an increased infiltration of CD3+ and CD8+ cells. Our results highlight the role of COX-2 in constitutive IDO1 expression by human tumors and substantiate the use of COX-2 inhibitors to improve the efficacy of cancer immunotherapy, by reducing constitutive IDO1 expression, which contributes to the lack of T-cell infiltration in "cold" tumors, which fail to respond to immunotherapy. Cancer Immunol Res; 5(8); 695-709. ©2017 AACR.
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Affiliation(s)
- Marc Hennequart
- Ludwig Institute for Cancer Research, Brussels, Belgium.,de Duve Institute, Université catholique de Louvain, Brussels, Belgium
| | - Luc Pilotte
- Ludwig Institute for Cancer Research, Brussels, Belgium.,de Duve Institute, Université catholique de Louvain, Brussels, Belgium
| | - Stefania Cane
- Ludwig Institute for Cancer Research, Brussels, Belgium.,de Duve Institute, Université catholique de Louvain, Brussels, Belgium
| | - Delia Hoffmann
- Ludwig Institute for Cancer Research, Brussels, Belgium.,de Duve Institute, Université catholique de Louvain, Brussels, Belgium
| | - Vincent Stroobant
- Ludwig Institute for Cancer Research, Brussels, Belgium.,de Duve Institute, Université catholique de Louvain, Brussels, Belgium
| | - Etienne De Plaen
- Ludwig Institute for Cancer Research, Brussels, Belgium.,de Duve Institute, Université catholique de Louvain, Brussels, Belgium
| | - Benoît Van den Eynde
- Ludwig Institute for Cancer Research, Brussels, Belgium. .,de Duve Institute, Université catholique de Louvain, Brussels, Belgium.,Walloon Excellence in Life Sciences and Biotechnology, Brussels, Belgium
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Associations of C-Reactive Protein, Granulocytes and Granulocyte-to-Lymphocyte Ratio with Mortality from Breast Cancer in Non-Institutionalized American Women. PLoS One 2016; 11:e0157482. [PMID: 27294662 PMCID: PMC4905698 DOI: 10.1371/journal.pone.0157482] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 05/31/2016] [Indexed: 12/16/2022] Open
Abstract
Inflammation may play a role in breast cancer, but evidence in the general population is lacking. We investigated the association between serum inflammatory markers (C-reactive protein (CRP), absolute granulocyte count (AGC) and granulocyte-to-lymphocyte (G/L) ratio) and breast cancer (BCa) mortality in American women while accounting for adiposity. From the Third National Health and Nutrition Examination Survey (NHANES III) we selected all women aged 20+ without any known history of cancer (n = 7,780). Multivariable Cox regression models were used to assess CRP, AGC and G/L ratio in relation to mortality from BCa, all cancer, cardiovascular disease and all causes. Stratification analyses by body mass index (BMI) and waist circumference were performed to investigate the effect of adiposity on this association. During a mean follow-up of 167 months, 44 women died from BCa. After adjustments for BMI and waist circumference, only G/L ratio was associated to risk of BCa death (e.g. HR: 2.35, 95% CI: 1.36–4.06 for the 3rd compared to the 1st tertile, Ptrend = 0.01). Except for a borderline interaction between CRP categories and obesity by BMI, no statistically significant interaction between markers and categories of BMI or waist circumference was observed. All three markers were associated with mortality from cardiovascular disease and all causes. Our findings support a role of inflammation in BCa mortality which may involve mechanisms apart from obesity, and potential usefulness of GLR as a marker in assessing inflammation and cancer.
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25
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Ji HG, Piao JY, Kim SJ, Kim DH, Lee HN, Na HK, Surh YJ. Docosahexaenoic acid inhibits Helicobacter pylori-induced STAT3 phosphorylation through activation of PPARγ. Mol Nutr Food Res 2016; 60:1448-57. [PMID: 27079734 DOI: 10.1002/mnfr.201600009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/08/2016] [Accepted: 03/09/2016] [Indexed: 01/09/2023]
Abstract
SCOPE The health beneficial effects of docosahexaenoic acid (DHA) have been attributed to its anti-inflammatory properties. However, the molecular mechanism underlying anti-inflammatory effects of DHA remains largely elusive. METHODS AND RESULTS In the present study, DHA was found to suppress the phosphorylation and nuclear translocation of signal transducer and activator of transcription 3 (STAT3) induced by Helicobacter pylori infection in human gastric cancer AGS cells. Notably, DHA induced expression of suppressor of cytokine signaling 3 (SOCS3), a negative regulator of STAT3. Knockdown of SOCS3 abolished the suppressive effect of DHA on STAT3(Tyr705) phosphorylation induced by H. pylori infection. DHA also induced nuclear translocation, DNA binding, and transcriptional activities of peroxisome proliferator-activated receptor gamma (PPARγ) in AGS cells. Knockdown of PPARγ inhibited the transcription of SOCS3 and attenuated the suppressive effect of DHA on phosphorylation of STAT3(Tyr705) induced by H. pylori. The PPARγ antagonist bisphenol A diglycidyl ether also mitigated the suppressive effect of DHA on H. pylori-induced phosphorylation of STAT3(Tyr705) . In addition, DHA inhibited the expression of c-Myc, which was attenuated in the AGS cells harboring SOCS3 specific siRNA. DHA also markedly decreased anchorage-independent growth of AGS cells infected by H. pylori. CONCLUSION DHA inhibits H. pylori-induced STAT3 phosphorylation in a PPARγ/SOCS3-dependent manner.
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Affiliation(s)
- Hyeon-Geun Ji
- Cancer Research Institute, Seoul National University, Seoul, South Korea.,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Juan-Yu Piao
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Su-Jung Kim
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Sciences, Seoul, South Korea
| | - Do-Hee Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Ha-Na Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Hye-Kyung Na
- Department of Food and Nutrition, College of Human Ecology, Sungshin Women's University, Seoul, South Korea
| | - Young-Joon Surh
- Cancer Research Institute, Seoul National University, Seoul, South Korea.,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Sciences, Seoul, South Korea
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26
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Ji K, Zhang L, Zhang M, Chu Q, Li X, Wang W. Prognostic Value and Clinicopathological Significance of p-stat3 Among Gastric Carcinoma Patients: A Systematic Review and Meta-Analysis. Medicine (Baltimore) 2016; 95:e2641. [PMID: 26844481 PMCID: PMC4748898 DOI: 10.1097/md.0000000000002641] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The overexpression of phosphorylated signal transducer and activator of transcription 3 (p-stat3) was detected in a variety of human tumors. The published studies on p-stat3 expression among gastric carcinoma patients remain controversial.In order to clarify the prognosis value of p-stat3 with overall survival and its association with clinicopathological characteristics in gastric carcinoma, we performed a systematic review and meta-analysis.Eligible studies were retrieved by searching PubMed, Embase, Cochrane library, and Chinese biomedical literature service system databases.Studies described the association between p-stat3 expression and clinicopathological characteristics and overall survival in gastric carcinoma patients; p-stat3 expression was detected by immunohistochemistry (IHC).Odds ratio (OR) and hazard ratio (HR) were considered as a measure of evaluating the association in meta-analysis; I was used to assess the heterogeneity across studies; publication bias was assessed with funnel plot, Egger test, and Begg test.Twenty-three studies including 2872 patients which evaluated the p-stat3 expression by IHC in gastric carcinoma were included. The pooled HR (HR = 2.02, 95% CI: 1.49-2.73, P < 0.00001) indicated that the increased p-stat3 expression was significantly associated with poor overall survival. In addition, when we investigated the association between p-stat3 overexpression and clinicopathological characteristics of gastric carcinoma, we found that the increased p-stat3 expression was significantly associated with tumor differentiation (poorly vs well-moderately: OR = 3.70, 95% CI: 1.98-6.93, P < 0.0001) and lymph node metastasis (present vs absent: OR = 2.40, 95% CI: 1.28-4.50, P = 0.007).The different type of primary antibody was used; the assessment methods of p-stat3 positive expression were defined differently; the locations of p-stat3 expression were different; the method of extrapolating HR from Kaplan-Meier survival curves did seem to be less reliable than when HR was extracted directly from literatures; sample sizes, the age of patients, and the follow-up durations are different.In conclusion, our meta-analysis indicates that the increased p-stat3 expression may be not only predict poor prognosis, but also be associated with worse tumor differentiation and lymph node metastasis in patients with gastric carcinoma.
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Affiliation(s)
- Kun Ji
- From the Department of Pathophysiology, Shenyang Medical College, Shenyang (KJ, LZ); Grade 2012 Clinical Medicine, Shenyang Medical College, Shenyang (MZ, QC); Department of Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun (XL); and Department of Neurosurgery, The Second Clinical Medical School of Inner Mongolia University for the Nationalities (Inner Mongolia General Forestry Hospital), Inner Mongolia, China (WW)
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27
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Pang L, Cai Y, Tang EHC, Irwin MG, Ma H, Xia Z. Prostaglandin E Receptor Subtype 4 Signaling in the Heart: Role in Ischemia/Reperfusion Injury and Cardiac Hypertrophy. J Diabetes Res 2016; 2016:1324347. [PMID: 27190998 PMCID: PMC4846751 DOI: 10.1155/2016/1324347] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 03/23/2016] [Indexed: 01/08/2023] Open
Abstract
Prostaglandin E2 (PGE2) is an endogenous lipid mediator, produced from the metabolism of arachidonic acids, upon the sequential actions of phospholipase A2, cyclooxygenases, and prostaglandin E synthases. The various biological functions governed by PGE2 are mediated through its four distinct prostaglandin E receptors (EPs), designated as EP1, EP2, EP3, and EP4, among which the EP4 receptor is the one most widely distributed in the heart. The availability of global or cardiac-specific EP4 knockout mice and the development of selective EP4 agonists/antagonists have provided substantial evidence to support the role of EP4 receptor in the heart. However, like any good drama, activation of PGE2-EP4 signaling exerts both protective and detrimental effects in the ischemic heart disease. Thus, the primary object of this review is to provide a comprehensive overview of the current progress of the PGE2-EP4 signaling in ischemic heart diseases, including cardiac hypertrophy and myocardial ischemia/reperfusion injury. A better understanding of PGE2-EP4 signaling should promote the development of more effective therapeutic approaches to treat the ischemic heart diseases without triggering unwanted side effects.
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Affiliation(s)
- Lei Pang
- Department of Anesthesiology, The First Hospital, Jilin University, Jilin 130021, China
| | - Yin Cai
- Department of Anesthesiology, The University of Hong Kong, Pokfulam, Hong Kong
| | - Eva Hoi Ching Tang
- Department of Pharmacology and Pharmacy and State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Pokfulam, Hong Kong
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong
| | - Michael G. Irwin
- Department of Anesthesiology, The University of Hong Kong, Pokfulam, Hong Kong
| | - Haichun Ma
- Department of Anesthesiology, The First Hospital, Jilin University, Jilin 130021, China
- *Haichun Ma:
| | - Zhengyuan Xia
- Department of Anesthesiology, The University of Hong Kong, Pokfulam, Hong Kong
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28
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Wang W, Guo C, Zhu P, Lu J, Li W, Liu C, Xie H, Myatt L, Chen ZJ, Sun K. Phosphorylation of STAT3 mediates the induction of cyclooxygenase-2 by cortisol in the human amnion at parturition. Sci Signal 2015; 8:ra106. [PMID: 26508788 DOI: 10.1126/scisignal.aac6151] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The induction of cyclooxygenase-2 (COX-2) and subsequent production of prostaglandin E2 (PGE2) by cortisol in the amnion contrast with the effect of cortisol on most other tissues, but this proinflammatory effect of cortisol may be a key event in human parturition (labor). We evaluated the underlying mechanism activated by cortisol in primary human amnion fibroblasts. Exposure of the amnion fibroblasts to cortisol led to the activation of the cyclic adenosine monophosphate (cAMP)-protein kinase A (PKA) pathway, which induced the phosphorylation of the kinase SRC and STAT3 (signal transducer and activator of transcription 3). STAT3 interacted with the glucocorticoid receptor (GR) and the transcription factor CREB-1 (cAMP response element-binding protein 1) at the promoter of the gene encoding COX-2, which promoted the production of the secreted prostaglandin PGE2. PGE2 activates the prostaglandin receptors EP2 and EP4, which stimulate cAMP-PKA signaling. Thus, cortisol reinforced the activation of cAMP-PKA signaling through an SRC-STAT3-COX-2-PGE2-mediated feedback loop. Inhibiting STAT3, SRC, or the cAMP-PKA pathway attenuated the cortisol-stimulated induction of COX-2 and PGE2 production in amnion fibroblasts. In human amnion tissue, the amount of phosphorylated STAT3 correlated positively with that of cortisol, COX-2, and PGE2, and all were more abundant in tissue obtained after active labor than in tissue obtained from cesarean surgeries in the absence of labor. These results indicated that the coordinated recruitment of STAT3, CREB-1, and GR to the promoter of the gene encoding COX-2 contributes to the feed-forward induction of COX-2 activity and prostaglandin synthesis in the amnion during parturition.
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Affiliation(s)
- Wangsheng Wang
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, P. R. China. Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, P. R. China
| | - Chunming Guo
- Department of Obstetrics and Gynecology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Ping Zhu
- Department of Obstetrics and Gynecology, No. 401 Hospital, Qingdao 266100, P. R. China
| | - Jiangwen Lu
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, P. R. China. Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, P. R. China
| | - Wenjiao Li
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, P. R. China. Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, P. R. China
| | - Chao Liu
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, P. R. China. Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, P. R. China
| | - Huiliang Xie
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, P. R. China
| | - Leslie Myatt
- Department of Obstetrics and Gynecology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, P. R. China. Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, P. R. China
| | - Kang Sun
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, P. R. China. Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, P. R. China.
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29
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Targeting colorectal cancer via its microenvironment by inhibiting IGF-1 receptor-insulin receptor substrate and STAT3 signaling. Oncogene 2015; 35:2634-44. [PMID: 26364612 PMCID: PMC4791217 DOI: 10.1038/onc.2015.326] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/05/2015] [Accepted: 07/29/2015] [Indexed: 12/11/2022]
Abstract
The tumor microenvironment (TME) exerts critical pro-tumorigenic effects through cytokines and growth factors that support cancer cell proliferation, survival, motility and invasion. Insulin-like growth factor-1 (IGF-1) and signal transducer and activator of transcription 3 (STAT3) stimulate colorectal cancer development and progression via cell autonomous and microenvironmental effects. Using a unique inhibitor, NT157, which targets both IGF-1 receptor (IGF-1R) and STAT3, we show that these pathways regulate many TME functions associated with sporadic colonic tumorigenesis in CPC-APC mice, in which cancer development is driven by loss of the Apc tumor suppressor gene. NT157 causes a substantial reduction in tumor burden by affecting cancer cells, cancer-associated fibroblasts (CAF) and myeloid cells. Decreased cancer cell proliferation and increased apoptosis were accompanied by inhibition of CAF activation and decreased inflammation. Furthermore, NT157 inhibited expression of pro-tumorigenic cytokines, chemokines and growth factors, including IL-6, IL-11 and IL-23 as well as CCL2, CCL5, CXCL7, CXCL5, ICAM1 and TGFβ; decreased cancer cell migratory activity and reduced their proliferation in the liver. NT157 represents a new class of anti-cancer drugs that affect both the malignant cell and its supportive microenvironment.
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30
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Rasch S, Algül H. A clinical perspective on the role of chronic inflammation in gastrointestinal cancer. Clin Exp Gastroenterol 2014; 7:261-72. [PMID: 25143751 PMCID: PMC4134025 DOI: 10.2147/ceg.s43457] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Chronic inflammation has been identified as an important risk factor for the development of malignancy, and knowledge about its molecular and cellular mechanisms is increasing. Several chronic inflammatory diseases of the gastrointestinal tract are important as risk factors for malignancy and have been studied in detail. In this review, we summarize important molecular mechanisms in chronic inflammation and highlight established and potential links between chronic inflammation and gastrointestinal cancer. In addition, we present the role of chronic inflammation in numerous tumors within the gastrointestinal tract as well as the relevant pathways or epidemiologic observations linking the pathogenesis of these tumors to inflammation.
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Affiliation(s)
- Sebastian Rasch
- II Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Hana Algül
- II Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
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31
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STAT3 in Cancer-Friend or Foe? Cancers (Basel) 2014; 6:1408-40. [PMID: 24995504 PMCID: PMC4190548 DOI: 10.3390/cancers6031408] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 06/19/2014] [Accepted: 06/20/2014] [Indexed: 12/25/2022] Open
Abstract
The roles and significance of STAT3 in cancer biology have been extensively studied for more than a decade. Mounting evidence has shown that constitutive activation of STAT3 is a frequent biochemical aberrancy in cancer cells, and this abnormality directly contributes to tumorigenesis and shapes many malignant phenotypes in cancer cells. Nevertheless, results from more recent experimental and clinicopathologic studies have suggested that STAT3 also can exert tumor suppressor effects under specific conditions. Importantly, some of these studies have demonstrated that STAT3 can function either as an oncoprotein or a tumor suppressor in the same cell type, depending on the specific genetic background or presence/absence of specific coexisting biochemical defects. Thus, in the context of cancer biology, STAT3 can be a friend or foe. In the first half of this review, we will highlight the “evil” features of STAT3 by summarizing its oncogenic functions and mechanisms. The differences between the canonical and non-canonical pathway will be highlighted. In the second half, we will summarize the evidence supporting that STAT3 can function as a tumor suppressor. To explain how STAT3 may mediate its tumor suppressor effects, we will discuss several possible mechanisms, one of which is linked to the role of STAT3β, one of the two STAT3 splicing isoforms. Taken together, it is clear that the roles of STAT3 in cancer are multi-faceted and far more complicated than one appreciated previously. The new knowledge has provided us with new approaches and strategies when we evaluate STAT3 as a prognostic biomarker or therapeutic target.
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32
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Judd LM, Menheniott TR, Ling H, Jackson CB, Howlett M, Kalantzis A, Priebe W, Giraud AS. Inhibition of the JAK2/STAT3 pathway reduces gastric cancer growth in vitro and in vivo. PLoS One 2014; 9:e95993. [PMID: 24804649 PMCID: PMC4013079 DOI: 10.1371/journal.pone.0095993] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 04/01/2014] [Indexed: 01/13/2023] Open
Abstract
Signal Transducer and Activator of Transcription-3 (STAT3) is constitutively activated in many cancers where it promotes growth, inflammation, angiogenesis and inhibits apoptosis. We have shown that STAT3 is constitutively activated in human gastric cancer, and that chronic IL-11-driven STAT3 transcriptional activity induces gastric tumourigenesis in the gp130757FF mouse model of gastric cancer development. Here we show that treatment of human AGS gastric cancer cells with the Janus Kinase (JAK) inhibitor WP1066 dose-, and time-dependently inhibits STAT3 phosphorylation, in conjunction with reduced JAK2 phosphorylation, reduced proliferation and increased apoptosis. In addition, application of intraperitoneal WP1066 for 2 weeks, reduced gastric tumour volume by 50% in the gp130757FF mouse coincident with reduced JAK2 and STAT3 activation compared with vehicle-treated, littermate controls. Gastric tumours from WP1066- treated mice had reduced polymorphonuclear inflammation, coincident with inhibition of numerous proinflammatory cytokines including IL-11, IL-6 and IL-1β, as well as the growth factors Reg1 and amphiregulin. These results show that WP1066 can block proliferation, reduce inflammation and induce apoptosis in gastric tumour cells by inhibiting STAT3 phosphorylation, and that many cytokines and growth factors that promote gastric tumour growth are regulated by STAT3-dependent mechanisms. WP1066 may form the basis for future therapeutics against gastric cancer.
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Affiliation(s)
- Louise M. Judd
- Infection and Immunity Division, Murdoch Children’s Research Institute, Parkville, Victoria, Australia
| | - Treve R. Menheniott
- Infection and Immunity Division, Murdoch Children’s Research Institute, Parkville, Victoria, Australia
| | - Hui Ling
- Department of Pathology and Cancer Research Institute, University of South China, Hengyang, Hunan, China
| | - Cameron B. Jackson
- Infection and Immunity Division, Murdoch Children’s Research Institute, Parkville, Victoria, Australia
| | - Meegan Howlett
- Infection and Immunity Division, Murdoch Children’s Research Institute, Parkville, Victoria, Australia
| | - Anastasia Kalantzis
- Infection and Immunity Division, Murdoch Children’s Research Institute, Parkville, Victoria, Australia
| | - Waldemar Priebe
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Andrew S. Giraud
- Infection and Immunity Division, Murdoch Children’s Research Institute, Parkville, Victoria, Australia
- * E-mail:
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