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Michinaga S, Nagata A, Ogami R, Ogawa Y, Hishinuma S. Histamine H 1 Receptor-Mediated JNK Phosphorylation Is Regulated by G q Protein-Dependent but Arrestin-Independent Pathways. Int J Mol Sci 2024; 25:3395. [PMID: 38542369 PMCID: PMC10970263 DOI: 10.3390/ijms25063395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
Arrestins are known to be involved not only in the desensitization and internalization of G protein-coupled receptors but also in the G protein-independent activation of mitogen-activated protein (MAP) kinases, such as extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK), to regulate cell proliferation and inflammation. Our previous study revealed that the histamine H1 receptor-mediated activation of ERK is dually regulated by Gq proteins and arrestins. In this study, we investigated the roles of Gq proteins and arrestins in the H1 receptor-mediated activation of JNK in Chinese hamster ovary (CHO) cells expressing wild-type (WT) human H1 receptors, the Gq protein-biased mutant S487TR, and the arrestin-biased mutant S487A. In these mutants, the Ser487 residue in the C-terminus region of the WT was truncated (S487TR) or mutated to alanine (S487A). Histamine significantly stimulated JNK phosphorylation in CHO cells expressing WT and S487TR but not S487A. Histamine-induced JNK phosphorylation in CHO cells expressing WT and S487TR was suppressed by inhibitors against H1 receptors (ketotifen and diphenhydramine), Gq proteins (YM-254890), and protein kinase C (PKC) (GF109203X) as well as an intracellular Ca2+ chelator (BAPTA-AM) but not by inhibitors against G protein-coupled receptor kinases (GRK2/3) (cmpd101), β-arrestin2 (β-arrestin2 siRNA), and clathrin (hypertonic sucrose). These results suggest that the H1 receptor-mediated phosphorylation of JNK is regulated by Gq-protein/Ca2+/PKC-dependent but GRK/arrestin/clathrin-independent pathways.
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Affiliation(s)
| | | | | | | | - Shigeru Hishinuma
- Department of Pharmacodynamics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
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Michinaga S, Nagata A, Ogami R, Ogawa Y, Hishinuma S. Differential regulation of histamine H 1 receptor-mediated ERK phosphorylation by G q proteins and arrestins. Biochem Pharmacol 2023; 213:115595. [PMID: 37201878 DOI: 10.1016/j.bcp.2023.115595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/20/2023]
Abstract
Gq protein-coupled histamine H1 receptors play crucial roles in allergic and inflammatory reactions, in which the phosphorylation of extracellular signal-regulated kinase (ERK) appears to mediate the production of inflammatory cytokines. ERK phosphorylation is regulated by G protein- and arrestin-mediated signal transduction pathways. Here, we aimed to explore how H1 receptor-mediated processes of ERK phosphorylation might be differentially regulated by Gq proteins and arrestins. For this purpose, we evaluated the regulatory mechanism(s) of H1 receptor-mediated ERK phosphorylation in Chinese hamster ovary cells expressing Gq protein- and arrestin-biased mutants of human H1 receptors, S487TR and S487A, in which the Ser487 residue in the C-terminal was truncated and mutated to alanine, respectively. Immunoblotting analysis indicated that histamine-induced ERK phosphorylation was prompt and transient in cells expressing Gq protein-biased S487TR, whereas it was slow and sustained in cells expressing arrestin-biased S487A. Inhibitors of Gq proteins (YM-254890) and protein kinase C (PKC) (GF109203X), and an intracellular Ca2+ chelator (BAPTA-AM) suppressed histamine-induced ERK phosphorylation in cells expressing S487TR, but not those expressing S487A. Conversely, inhibitors of G protein-coupled receptor kinases (GRK2/3) (cmpd101), β-arrestin2 (β-arrestin2 siRNA), clathrin (hypertonic sucrose), Raf (LY3009120), and MEK (U0126) suppressed histamine-induced ERK phosphorylation in cells expressing S487A, but not those expressing S487TR. These results suggest that H1 receptor-mediated ERK phosphorylation might be differentially regulated by the Gq protein/Ca2+/PKC and GRK/arrestin/clathrin/Raf/MEK pathways to potentially determine the early and late phases of histamine-induced allergic and inflammatory responses, respectively.
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Affiliation(s)
- Shotaro Michinaga
- Department of Pharmacodynamics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Ayaka Nagata
- Department of Pharmacodynamics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Ryosuke Ogami
- Department of Pharmacodynamics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Yasuhiro Ogawa
- Department of Pharmacodynamics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Shigeru Hishinuma
- Department of Pharmacodynamics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan.
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Wang Z, Wang H, Barreto Sánchez AL, Thiam M, Zhang J, Li Q, Zheng M, Wen J, Li H, Zhao G, Wang Q. Comparative Analysis of the Liver Transcriptome of Beijing You Chickens and Guang Ming Broilers under Salmonella enterica Serovar Typhimurium Infection. Microorganisms 2022; 10:microorganisms10122440. [PMID: 36557693 PMCID: PMC9788339 DOI: 10.3390/microorganisms10122440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/21/2022] [Accepted: 12/01/2022] [Indexed: 12/14/2022] Open
Abstract
Salmonella enterica serovar Typhimurium (ST) is a food-borne pathogen that can infect animals and humans. It is currently the most common bacterial pathogen that negatively affects the poultry industry. Although different chicken breeds have been observed to exhibit diverse resistance to ST infection, the underlying genetic mechanisms remain unclear and the genes involved in this differential disease resistance need to be identified. To overcome this knowledge gap, we used a liver transcriptome analysis to screen differentially expressed genes (DEGs) in two different chicken breeds (local Beijing You (BY) and commercial Guang Ming No. 2 broiler line B (GM)) before and after ST infection. We also performed weighted gene co-expression network analysis (WGCNA) to detect hub genes, and employed selection signal analysis of candidate genes. Three promising genes (EGR1, JUN and FOS) were eventually identified, and were significantly and differentially expressed in the same breed under different conditions, and in the two breeds after ST infection. Hub genes, such as PPFIA4 and ZNF395, were identified using WGCNA, and were associated with the ratio of heterophils to lymphocytes (H/L), an indicator of disease resistance. the present study identified several genes and pathways associated with resistance to ST infection, and found that BY had greater resistance to ST infection than GM. The results obtained provide valuable resources for investigating the mechanisms of resistance to ST infection in different chicken breeds.
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Affiliation(s)
- Zixuan Wang
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Hailong Wang
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | | | - Mamadou Thiam
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jin Zhang
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qinghe Li
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Maiqing Zheng
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jie Wen
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hegang Li
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Guiping Zhao
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qiao Wang
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Correspondence:
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Comparative Investigation of Gene Regulatory Processes Underlying Avian Influenza Viruses in Chicken and Duck. BIOLOGY 2022; 11:biology11020219. [PMID: 35205087 PMCID: PMC8868632 DOI: 10.3390/biology11020219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/07/2022] [Accepted: 01/25/2022] [Indexed: 11/30/2022]
Abstract
Simple Summary Avian influenza poses a great risk to gallinaceous poultry, while mallard ducks can withstand most virus strains. To date, the mechanisms underlying the susceptibility of chicken and the effective immune response of duck have not been completely understood. In this study, our aim is to investigate the transcriptional gene regulation governing the expression of important avian-influenza-induced genes and to reveal the master regulators stimulating an effective immune response after virus infection in ducks while dysfunctioning in chicken. Abstract The avian influenza virus (AIV) mainly affects birds and not only causes animals’ deaths, but also poses a great risk of zoonotically infecting humans. While ducks and wild waterfowl are seen as a natural reservoir for AIVs and can withstand most virus strains, chicken mostly succumb to infection with high pathogenic avian influenza (HPAI). To date, the mechanisms underlying the susceptibility of chicken and the effective immune response of duck have not been completely unraveled. In this study, we investigate the transcriptional gene regulation underlying disease progression in chicken and duck after AIV infection. For this purpose, we use a publicly available RNA-sequencing dataset from chicken and ducks infected with low-pathogenic avian influenza (LPAI) H5N2 and HPAI H5N1 (lung and ileum tissues, 1 and 3 days post-infection). Unlike previous studies, we performed a promoter analysis based on orthologous genes to detect important transcription factors (TFs) and their cooperation, based on which we apply a systems biology approach to identify common and species-specific master regulators. We found master regulators such as EGR1, FOS, and SP1, specifically for chicken and ETS1 and SMAD3/4, specifically for duck, which could be responsible for the duck’s effective and the chicken’s ineffective immune response.
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Czerwiński M, Bednarska-Czerwińska A, Zmarzły N, Boroń D, Oplawski M, Grabarek BO. Evaluation of the Differences in the Expression of Biogenic Amine-Related mRNAs and Proteins in Endometrioid Endometrial Cancer. J Clin Med 2021; 10:jcm10214872. [PMID: 34768392 PMCID: PMC8584663 DOI: 10.3390/jcm10214872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/13/2021] [Accepted: 10/19/2021] [Indexed: 02/06/2023] Open
Abstract
Biogenic amines, such as adrenaline, noradrenaline, histamine, dopamine, and serotonin are important neurotransmitters that also regulate cell viability. Their detection and analysis are helpful in the diagnosis of many diseases, including cancer. The aim of this study was to determine the expression profile of the biogenic amine-related genes and proteins in endometrioid endometrial cancer compared to the control group. The material consisted of endometrial tissue samples and whole blood collected from 30 endometrioid endometrial cancer patients and 30 cancer-free patients. The gene expression was determined by the mRNA microarrays and validated by qRT-PCR. Protein levels were determined in the serum by the enzyme-linked immunosorbent assay (ELISA). Overexpression of histamine H1–H3 receptors and early growth response 1 and silencing of calmodulin, the histamine H4 receptor, and the dopamine D5 receptor have been reported in endometrioid endometrial cancer. The obtained results indicate disturbances in the signaling activated by histamine and dopamine receptors, which could potentially contribute to the progression of endometrioid endometrial cancer.
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Affiliation(s)
- Michał Czerwiński
- American Medical Clinic, 40-600 Katowice, Poland
- Gyncentrum Fertility Clinic, 40-121 Katowice, Poland;
- Correspondence:
| | - Anna Bednarska-Czerwińska
- Gyncentrum Fertility Clinic, 40-121 Katowice, Poland;
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology in Katowice, 41-800 Zabrze, Poland; (N.Z.); (D.B.); (B.O.G.)
| | - Nikola Zmarzły
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology in Katowice, 41-800 Zabrze, Poland; (N.Z.); (D.B.); (B.O.G.)
| | - Dariusz Boroń
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology in Katowice, 41-800 Zabrze, Poland; (N.Z.); (D.B.); (B.O.G.)
- Department of Gynecology and Obstetrics with Gynecologic Oncology, Ludwik Rydygier Memorial Specialized Hospital, 31-826 Kraków, Poland;
- Departament of Gynecology and Obstetrics, TOMMED Specjalisci od Zdrowia, Fredry 22, 40-662 Katowice, Poland
| | - Marcin Oplawski
- Department of Gynecology and Obstetrics with Gynecologic Oncology, Ludwik Rydygier Memorial Specialized Hospital, 31-826 Kraków, Poland;
| | - Beniamin Oskar Grabarek
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology in Katowice, 41-800 Zabrze, Poland; (N.Z.); (D.B.); (B.O.G.)
- Department of Gynecology and Obstetrics with Gynecologic Oncology, Ludwik Rydygier Memorial Specialized Hospital, 31-826 Kraków, Poland;
- Departament of Gynecology and Obstetrics, TOMMED Specjalisci od Zdrowia, Fredry 22, 40-662 Katowice, Poland
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Mizuguchi H, Kitamura Y, Takeda N, Fukui H. Molecular Signaling and Transcriptional Regulation of Histamine H 1 Receptor Gene. Curr Top Behav Neurosci 2021; 59:91-110. [PMID: 34595742 DOI: 10.1007/7854_2021_256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Histamine-activated histamine H1 receptor (H1R) signaling regulates many gene expressions, mainly through the protein kinase C (PKC)/extracellular signal-regulated kinases (ERK) signaling. Involvement of other signaling, including NF-κB, Wnt, RUNX-2, and Rho A signaling was also demonstrated. In addition, cAMP production through the activation of H1R signaling was reported. H1R gene itself is also up-regulated by the activation of H1R signaling with histamine. Here, we review our recent findings in the molecular signaling and transcriptional regulation of the H1R gene. Stimulation with histamine up-regulates H1R gene expression through the activation of H1R in HeLa cells. The PKCδ/ERK/poly(ADP)ribosyl transferase-1 (PARP-1) signaling was involved in this up-regulation. Heat shock protein 90 also plays an important role in regulating PKCδ translocation. Promoter analyses revealed the existence of two promoters in the human H1R gene in HeLa cells. H1R-activated H1R gene up-regulation in response to histamine was also observed in U373 astroglioma cells. However, this up-regulation was mediated not through the PKCδ signaling but possibly through the PKCα signaling. In addition, the promoter region responsible for histamine-induced H1R gene transcription in U373 cells was different from that of HeLa cells. These findings suggest that the molecular signaling and transcriptional regulation of the H1R gene are different between neuronal cells and non-neuronal cells.
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Affiliation(s)
- Hiroyuki Mizuguchi
- Laboratory of Pharmacology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan.
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Zhang S, Tao X, Cao Q, Feng X, Wu J, Yu H, Yu Y, Xu C, Zhao H. lnc003875/miR-363/EGR1 regulatory network in the carcinoma -associated fibroblasts controls the angiogenesis of human placental site trophoblastic tumor (PSTT). Exp Cell Res 2019; 387:111783. [PMID: 31857113 DOI: 10.1016/j.yexcr.2019.111783] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 12/13/2019] [Accepted: 12/15/2019] [Indexed: 11/26/2022]
Abstract
The rare gestational trophoblastic neoplasia placental site trophoblastic tumor (PSTT) frequently demonstrates a high degree of vascularization, which may facilitate the tumor metastasis. However, the underlying mechanisms remain largely unknown. In the present study, we found that early growth response 1 (EGR1) was highly expressed in the carcinoma-associated fibroblasts (CAFs) of PSTT tissues. Further data showed that miR-363 down-regulated EGR1 expression whereas long non-coding RNA NONHSAT003875 (lnc003875) up-regulated EGR1 expression in PSTT derived CAFs. lnc003875 exerted no effect on miR-363 expression, but it recovered the decrease of EGR1 caused by miR-363 mimic. The conditioned media from PSTT CAFs treated with miR-363 mimic abrogated the tube formation capacity of human umbilical vein endothelial cells (HUVECs), which can be partially restored by lnc003875 over-expression. Moreover, over-expression of EGR1 promoted the secretion of Angiopoietin-1 (Ang-1) in PSTT derived CAFs and improved the tube formation of HUVECs, which could be effectively abrogated by Ang-1 siRNAs. In vivo vasculogenesis assay demonstrated that lnc003875/EGR1 in PSTT derived CAFs promoted the vasculogenesis of HUVECs in C57BL/6 mice. Collectively, these findings indicated that lnc003875/miR-363/EGR1/Ang-1 in CAFs may be crucial for the angiogenesis of PSTT.
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Affiliation(s)
- Sai Zhang
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
| | - Xiang Tao
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
| | - Qi Cao
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
| | - Xuan Feng
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
| | - Jing Wu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
| | - Huandi Yu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
| | - Yinhua Yu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
| | - Congjian Xu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China.
| | - Hongbo Zhao
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, People's Republic of China; Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, 200032, People's Republic of China; Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China.
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Shi Z, Fultz RS, Engevik MA, Gao C, Hall A, Major A, Mori-Akiyama Y, Versalovic J. Distinct roles of histamine H1- and H2-receptor signaling pathways in inflammation-associated colonic tumorigenesis. Am J Physiol Gastrointest Liver Physiol 2019; 316:G205-G216. [PMID: 30462522 PMCID: PMC6383385 DOI: 10.1152/ajpgi.00212.2018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Inflammatory bowel disease (IBD) is a well-known risk factor for the development of colorectal cancer. Prior studies have demonstrated that microbial histamine can ameliorate intestinal inflammation in mice. We tested the hypothesis whether microbe-derived luminal histamine suppresses inflammation-associated colon cancer in Apcmin/+ mice. Mice were colonized with the human-derived Lactobacillus reuteri. Chronic inflammation was induced by repeated cycles of low-dose dextran sulfate sodium (DSS). Mice that were given histamine-producing L. reuteri via oral gavage developed fewer colonic tumors, despite the presence of a complex mouse gut microbiome. We further demonstrated that administration of a histamine H1-receptor (H1R) antagonist suppressed tumorigenesis, while administration of histamine H2-receptor (H2R) antagonist significantly increased both tumor number and size. The bimodal functions of histamine include protumorigenic effects through H1R and antitumorigenic effects via H2R, and these results were supported by gene expression profiling studies on tumor specimens of patients with colorectal cancer. Greater ratios of gene expression of H2R ( HRH2) vs. H1R ( HRH1) were correlated with improved overall survival outcomes in patients with colorectal cancer. Additionally, activation of H2R suppressed phosphorylation of mitogen-activated protein kinases (MAPKs) and inhibited chemokine gene expression induced by H1R activation in colorectal cancer cells. Moreover, the combination of a H1R antagonist and a H2R agonist yielded potent suppression of lipopolysaccharide-induced MAPK signaling in macrophages. Given the impact on intestinal epithelial and immune cells, simultaneous modulation of H1R and H2R signaling pathways may be a promising therapeutic target for the prevention and treatment of inflammation-associated colorectal cancer. NEW & NOTEWORTHY Histamine-producing Lactobacillus reuteri can suppress development of inflammation-associated colon cancer in an established mouse model. The net effects of histamine may depend on the relative activity of H1R and H2R signaling pathways in the intestinal mucosa. Our findings suggest that treatment with H1R or H2R antagonists could yield opposite effects. However, by harnessing the ability to block H1R signaling while stimulating H2R signaling, novel strategies for suppression of intestinal inflammation and colorectal neoplasia could be developed.
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Affiliation(s)
- Zhongcheng Shi
- 1Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas,2Department of Pathology, Texas Children’s Hospital, Houston, Texas
| | - Robert S. Fultz
- 2Department of Pathology, Texas Children’s Hospital, Houston, Texas,3Graduate Program in Integrative Molecular and Biomedical Sciences, Baylor College of Medicine, Houston, Texas
| | - Melinda A. Engevik
- 1Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas,2Department of Pathology, Texas Children’s Hospital, Houston, Texas
| | - Chunxu Gao
- 4Alkek Center for Metagenomics and Microbiome Research, Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas
| | - Anne Hall
- 2Department of Pathology, Texas Children’s Hospital, Houston, Texas,5Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas
| | - Angela Major
- 2Department of Pathology, Texas Children’s Hospital, Houston, Texas
| | - Yuko Mori-Akiyama
- 1Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas,2Department of Pathology, Texas Children’s Hospital, Houston, Texas
| | - James Versalovic
- 1Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas,2Department of Pathology, Texas Children’s Hospital, Houston, Texas
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Zhou Y, Gao C, Wang H, Liu L, Huang Z, Fa X. Histamine H1 type receptor antagonist loratadine ameliorates oxidized LDL induced endothelial dysfunction. Biomed Pharmacother 2018; 106:1448-1453. [DOI: 10.1016/j.biopha.2018.07.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 06/28/2018] [Accepted: 07/03/2018] [Indexed: 01/05/2023] Open
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Differential function and regulation of orphan nuclear receptor TR3 isoforms in endothelial cells. Tumour Biol 2015; 37:3307-20. [PMID: 26440050 DOI: 10.1007/s13277-015-4157-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 09/24/2015] [Indexed: 10/23/2022] Open
Abstract
TR3 has been reported to be an excellent target for angiogenesis therapies. We reported three TR3 transcript variant messenger RNAs (mRNAs) are expressed in human umbilical vein endothelial cell (HUVEC) and are differentially regulated by vascular endothelial growth factor (VEGF). TR3 transcript variant 1 (TR3-TV1) and variant 2 (TR3-TV2) encoding the same TR3 isoform 1 protein (TR3-iso1) that was named TR3 has been extensively studied. However, the function of TR3 isoform 2 protein (TR3-iso2) encoded by TR3 transcript variant 3 (TR3-TV3) is still not known. Here, we clone and express the novel TR3-iso2 protein and find that expression of TR3-iso2, in contrast to TR3-iso1, inhibits endothelial cell proliferation induced by VEGF-A, histamine, and phorbol-12-myristate-13-acetate (PMA). The differential function of TR3-iso2 correlates with the down-regulation of cyclin D1. However, TR3-iso2 plays similar roles in endothelial cell migration and monolayer permeability as TR3-iso1. We further demonstrate that several intracellular signaling pathways are involved in histamine-induced TR3 transcript variants, including histamine receptor H1-mediated phospholipase C (PLC)/calcium /calcineurin/protein kinase C (PKC)/protein kinase D (PKD) pathway and ERK pathway, as well as histamine receptor H3-mediated PKC-ERK pathway. Further, expressions of TR3-TV1, TR3-TV2, and TR3-TV3 by VEGF and histamine are regulated by different promoters, but not by their mRNA stability.
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Gehring KB, Heufelder K, Kersting I, Eisenhardt D. Abundance of phosphorylatedApis melliferaCREB in the honeybee's mushroom body inner compact cells varies with age. J Comp Neurol 2015; 524:1165-80. [DOI: 10.1002/cne.23894] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 08/24/2015] [Accepted: 08/25/2015] [Indexed: 02/05/2023]
Affiliation(s)
- Katrin B. Gehring
- Institute for Biology-Neurobiology; Freie Universität Berlin; D-14195 Berlin Germany
| | - Karin Heufelder
- Institute for Biology-Neurobiology; Freie Universität Berlin; D-14195 Berlin Germany
| | - Isabella Kersting
- Institute for Biology-Neurobiology; Freie Universität Berlin; D-14195 Berlin Germany
| | - Dorothea Eisenhardt
- Institute for Biology-Neurobiology; Freie Universität Berlin; D-14195 Berlin Germany
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13
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Histamine induces the production of matrix metalloproteinase-9 in human astrocytic cultures via H1-receptor subtype. Brain Struct Funct 2015; 221:1845-60. [DOI: 10.1007/s00429-015-1007-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 02/07/2015] [Indexed: 10/24/2022]
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Valtcheva MV, Davidson S, Zhao C, Leitges M, Gereau RW. Protein kinase Cδ mediates histamine-evoked itch and responses in pruriceptors. Mol Pain 2015; 11:1. [PMID: 25558916 PMCID: PMC4298070 DOI: 10.1186/1744-8069-11-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 12/23/2014] [Indexed: 01/28/2023] Open
Abstract
Background Itch-producing compounds stimulate receptors expressed on small diameter fibers that innervate the skin. Many of the currently known pruritogen receptors are Gq Protein-Coupled Receptors (GqPCR), which activate Protein Kinase C (PKC). Specific isoforms of PKC have been previously shown to perform selective functions; however, the roles of PKC isoforms in regulating itch remain unclear. In this study, we investigated the novel PKC isoform PKCδ as an intracellular modulator of itch signaling in response to histamine and the non-histaminergic pruritogens chloroquine and β-alanine. Results Behavioral experiments indicate that PKCδ knock-out (KO) mice have a 40% reduction in histamine-induced scratching when compared to their wild type littermates. On the other hand, there were no differences between the two groups in scratching induced by the MRGPR agonists chloroquine or β-alanine. PKCδ was present in small diameter dorsal root ganglion (DRG) neurons. Of PKCδ-expressing neurons, 55% also stained for the non-peptidergic marker IB4, while a smaller percentage (15%) expressed the peptidergic marker CGRP. Twenty-nine percent of PKCδ-expressing neurons also expressed TRPV1. Calcium imaging studies of acutely dissociated DRG neurons from PKCδ-KO mice show a 40% reduction in the total number of neurons responsive to histamine. In contrast, there was no difference in the number of capsaicin-responsive neurons between KO and WT animals. Acute pharmacological inhibition of PKCδ with an isoform-specific peptide inhibitor (δV1-1) also significantly reduced the number of histamine-responsive sensory neurons. Conclusions Our findings indicate that PKCδ plays a role in mediating histamine-induced itch, but may be dispensable for chloroquine- and β-alanine-induced itch.
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Affiliation(s)
| | | | | | | | - Robert W Gereau
- Washington University Pain Center and Department of Anesthesiology, Washington University in St, Louis, 660 S, Euclid Ave, Box 8054, 63110 St, Louis, MO, USA.
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15
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Yoon YJ, Kim DK, Yoon CM, Park J, Kim YK, Roh TY, Gho YS. Egr-1 activation by cancer-derived extracellular vesicles promotes endothelial cell migration via ERK1/2 and JNK signaling pathways. PLoS One 2014; 9:e115170. [PMID: 25502753 PMCID: PMC4264882 DOI: 10.1371/journal.pone.0115170] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 11/19/2014] [Indexed: 11/18/2022] Open
Abstract
Various mammalian cells, including cancer cells, shed extracellular vesicles (EVs), also known as exosomes and microvesicles, into surrounding tissues. These EVs play roles in tumor growth and metastasis by promoting angiogenesis. However, the detailed mechanism of how cancer-derived EVs elicit endothelial cell activation remains unknown. Here, we provide evidence that early growth response-1 (Egr-1) activation in endothelial cells is involved in the angiogenic activity of colorectal cancer cell-derived EVs. Both RNA interference–mediated downregulation of Egr-1 and ERK1/2 or JNK inhibitor significantly blocked EV-mediated Egr-1 activation and endothelial cell migration. Furthermore, lipid raft-mediated endocytosis inhibitor effectively blocked endothelial Egr-1 activation and migration induced by cancer-derived EVs. Our results suggest that Egr-1 activation in endothelial cells may be a key mechanism involved in the angiogenic activity of cancer-derived EVs. These findings will improve our understanding regarding the proangiogenic activities of EVs in diverse pathological conditions including cancer, cardiovascular diseases, and neurodegenerative diseases.
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Affiliation(s)
- Yae Jin Yoon
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
| | - Dae-Kyum Kim
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
| | - Chang Min Yoon
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
| | - Jaesung Park
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
| | - Yoon-Keun Kim
- Ewha Institute of Convergence Medicine, Ewha Womans University Medical Center, Seoul 158-710, Republic of Korea
| | - Tae-Young Roh
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
- * E-mail: (YSG); (T-YR)
| | - Yong Song Gho
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
- * E-mail: (YSG); (T-YR)
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16
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Ha YM, Park EJ, Kang YJ, Park SW, Kim HJ, Chang KC. Valsartan independent of AT₁ receptor inhibits tissue factor, TLR-2 and -4 expression by regulation of Egr-1 through activation of AMPK in diabetic conditions. J Cell Mol Med 2014; 18:2031-43. [PMID: 25109475 PMCID: PMC4244018 DOI: 10.1111/jcmm.12354] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 05/20/2014] [Indexed: 01/08/2023] Open
Abstract
Patients suffering from diabetes mellitus (DM) are at a severe risk of atherothrombosis. Early growth response (Egr)-1 is well characterized as a central mediator in vascular pathophysiology. We tested whether valsartan independent of Ang II type 1 receptor (AT1R) can reduce tissue factor (TF) and toll-like receptor (TLR)-2 and -4 by regulating Egr-1 in THP-1 cells and aorta in streptozotocin-induced diabetic mice. High glucose (HG, 15 mM) increased expressions of Egr-1, TF, TLR-2 and -4 which were significantly reduced by valsartan. HG increased Egr-1 expression by activation of PKC and ERK1/2 in THP-1 cells. Valsartan increased AMPK phosphorylation in a concentration and time-dependent manner via activation of LKB1. Valsartan inhibited Egr-1 without activation of PKC or ERK1/2. The reduced expression of Egr-1 by valsartan was reversed by either silencing Egr-1, or compound C, or DN-AMPK-transfected cells. Valsartan inhibited binding of NF-κB and Egr-1 to TF promoter in HG condition. Furthermore, valsartan reduced inflammatory cytokine (TNF-α, IL-6 and IL-1β) production and NF-κB activity in HG-activated THP-1 cells. Interestingly, these effects of valsartan were not affected by either silencing AT1R in THP-1 cells or CHO cells, which were devoid of AT1R. Importantly, administration of valsartan (20 mg/kg, i.p) for 8 weeks significantly reduced plasma TF activity, expression of Egr-1, TLR-2, -4 and TF in thoracic aorta and improved glucose tolerance of streptozotocin-induced diabetic mice. Taken together, we concluded that valsartan may reduce atherothrombosis in diabetic conditions through AMPK/Egr-1 regulation.
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Affiliation(s)
- Yu Mi Ha
- Department of Pharmacology, College of Medicine, Yeungnam University, Daegu, Korea
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17
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Lai TS, Greenberg CS. Histaminylation of fibrinogen by tissue transglutaminase-2 (TGM-2): potential role in modulating inflammation. Amino Acids 2014; 45:857-64. [PMID: 23797785 DOI: 10.1007/s00726-013-1532-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 06/05/2013] [Indexed: 02/03/2023]
Abstract
Plasma fibrinogen plays an important role in hemostasis and inflammation. Fibrinogen is converted to fibrin to impede blood loss and serves as the provisional matrix that aids wound healing. Fibrinogen also binds to cytokine activated endothelial cells and promotes the binding and migration of leukocytes into tissues during inflammation. Tissue transglutaminase (TGM-2) released from injured cells could cross-link fibrinogen to form multivalent complexes that could promote adhesion of platelets and vascular cells to endothelium. Histamine released by mast cells is a potent biogenic amine that promotes inflammation. The covalent attachment of histamine to proteins (histaminylation) by TGM-2 could modify local inflammatory reactions. We investigated TGM-2 crosslinking of several biogenic amines (serotonin, histamine, dopamine and noradrenaline) to fibrinogen. We identified histaminylation of fibrinogen by TGM-2 as a preferred reaction in solid and solution phase transglutaminase assays. Histamine caused a concentration-dependent inhibition of fibrinogen cross-linking by TGM-2. Fibrinogen that was not TGM-2 crosslinked bound to unactivated endothelial cells with low affinity. However, the binding was increased by sevenfold when fibrinogen was cross-linked by TGM-2. Histaminylation of fibrinogen also inhibited TGM-2 crosslinking of fibrinogen and the binding to un-activated HUVEC cells by 75–90 %. In summary, the histaminylation of fibrinogen by TGM-2 could play a role in modifying inflammation by sequestering free histamine and by inhibiting TGM-2 crosslinking of fibrinogen.
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18
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Down-regulation of histamine-induced endothelial cell activation as potential anti-atherosclerotic activity of peptides from Spirulina maxima. Eur J Pharm Sci 2013; 50:198-207. [PMID: 23856417 DOI: 10.1016/j.ejps.2013.07.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 06/24/2013] [Accepted: 07/02/2013] [Indexed: 12/14/2022]
Abstract
Histamine, a potent inflammatory mediator, has been known to cause the pathogenesis of atherosclerosis. In this sense, two bioactive peptides P1 (LDAVNR; 686Da) and P2 (MMLDF; 655Da) purified from gastric enzymatic hydrolysate of Spirulina maxima were examined for their protective effects against early atherosclerotic responses induced by histamine in EA.hy926 endothelial cells. Interestingly, both P1 and P2 exhibited inhibitory activities on the production and expression of IL-6 and MCP-1. Furthermore, P1 and P2 inhibited the production of adhesion molecules including P-selectin and E-selectin, and thus reducing in vitro cell adhesion of monocyte onto endothelial cells. In addition, the production of intracellular reactive oxygen species was observed to reduce in the presence of P1 or P2. Notably, the inhibitory activities of P1 and P2 were found due to down-regulating Egr-1 expression via histamine receptor and PKCδ-dependent MAPKs activation pathway. These results suggest that peptides P1 and P2 from S. maxima are effective to suppress histamine-induced endothelial cell activation that may contribute to the prevention of early atherosclerosis.
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19
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Hao F, Wu DD, Xu X, Cui MZ. Histamine induces activation of protein kinase D that mediates tissue factor expression and activity in human aortic smooth muscle cells. Am J Physiol Heart Circ Physiol 2012; 303:H1344-52. [PMID: 23001835 DOI: 10.1152/ajpheart.00500.2011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Histamine, an inflammatory mediator, has been shown to influence the pathogenesis of vascular wall cells. However, the molecular basis of its influence is not well understood. Our data reveal that histamine markedly induces protein kinase D (PKD) activation in human aortic smooth muscle cells. PKD belongs to a family of serine/threonine protein kinases, and its function in vascular disease is largely unknown. Our data show that histamine-induced PKD phosphorylation is dependent on the activation of histamine receptor 1 and protein kinase C (PKC). To determine the role of PKD in the histamine pathway, we employed a small-interfering RNA approach to downregulate PKD expression and found that PKD1 and PKD2 are key mediators for expression of tissue factor (TF), which is the key initiator of blood coagulation and is important for thrombosis. Our results show that PKD2 predominantly mediates histamine-induced TF expression via the p38 mitogen-activated protein kinase (MAPK) pathway, whereas PKD1 mediates histamine-induced TF expression through a p38 MAPK-independent pathway. We demonstrate that histamine induces TF expression via the PKC-dependent PKD activation. Our data provide the first evidence that PKD is a new component in histamine signaling in live cells and that PKD has a novel function in the histamine signaling pathway leading to gene expression, as evidenced by TF expression. Importantly, our data reveal a regulatory link from histamine to PKD and TF, providing new insights into the mechanisms of coagulation and the development of atherothrombosis.
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Affiliation(s)
- Feng Hao
- Department of Biomedical & Diagnostic Sciences, College of Veterinary Medicine, The University of Tennessee, Knoxville, TN 37996, USA
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20
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He G, Hu J, Li T, Ma X, Meng J, Jia M, Lu J, Ohtsu H, Chen Z, Luo X. Arrhythmogenic effect of sympathetic histamine in mouse hearts subjected to acute ischemia. Mol Med 2012; 18:1-9. [PMID: 21989948 DOI: 10.2119/molmed.2011.00225] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2011] [Accepted: 10/04/2011] [Indexed: 11/06/2022] Open
Abstract
The role of histamine as a newly recognized sympathetic neurotransmitter has been presented previously, and its postsynaptic effects greatly depended on the activities of sympathetic nerves. Cardiac sympathetic nerves become overactivated under acute myocardial ischemic conditions and release neurotransmitters in large amounts, inducing ventricular arrhythmia. Therefore, it is proposed that cardiac sympathetic histamine, in addition to norepinephrine, may have a significant arrhythmogenic effect. To test this hypothesis, we observed the release of cardiac sympathetic histamine and associated ventricular arrhythmogenesis that was induced by acute ischemia in isolated mouse hearts. Mast cell-deficient mice (MCDM) and histidine decarboxylase knockout (HDC(-/-)) mice were used to exclude the potential involvement of mast cells. Electrical field stimulation and acute ischemia-reperfusion evoked chemical sympathectomy-sensitive histamine release from the hearts of both MCDM and wild-type (WT) mice but not from HDC(-/-) mice. The release of histamine from the hearts of MCDM and WT mice was associated with the development of acute ischemia-induced ventricular tachycardia and ventricular fibrillation. The incidence and duration of induced ventricular arrhythmias were found to decrease in the presence of the selective histamine H(2) receptor antagonist famotidine. Additionally, the released histamine facilitated the arrhythmogenic effect of simultaneously released norepinephrine. We conclude that, under acute ischemic conditions, cardiac sympathetic histamine released by overactive sympathetic nerve terminals plays a certain arrhythmogenic role via H(2) receptors. These findings provided novel insight into the pathophysiological roles of sympathetic histamine, which may be a new therapeutic target for acute ischemia-induced arrhythmias.
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Affiliation(s)
- Gonghao He
- Department of Pharmacology, School of Pharmacy, The Fourth Military Medical University, Xi'an, China
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21
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Mizuguchi H, Terao T, Kitai M, Ikeda M, Yoshimura Y, Das AK, Kitamura Y, Takeda N, Fukui H. Involvement of protein kinase Cdelta/extracellular signal-regulated kinase/poly(ADP-ribose) polymerase-1 (PARP-1) signaling pathway in histamine-induced up-regulation of histamine H1 receptor gene expression in HeLa cells. J Biol Chem 2011; 286:30542-30551. [PMID: 21730054 DOI: 10.1074/jbc.m111.253104] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The histamine H(1) receptor (H1R) gene is up-regulated in patients with allergic rhinitis. However, the mechanism and reason underlying this up-regulation are still unknown. Recently, we reported that the H1R expression level is strongly correlated with the severity of allergic symptoms. Therefore, understanding the mechanism of this up-regulation will help to develop new anti-allergic drugs targeted for H1R gene expression. Here we studied the molecular mechanism of H1R up-regulation in HeLa cells that express H1R endogenously in response to histamine and phorbol 12-myristate 13-acetate (PMA). In HeLa cells, histamine stimulation caused up-regulation of H1R gene expression. Rottlerin, a PKCδ-selective inhibitor, inhibited up-regulation of H1R gene expression, but Go6976, an inhibitor of Ca(2+)-dependent PKCs, did not. Histamine or PMA stimulation resulted in PKCδ phosphorylation at Tyr(311) and Thr(505). Activation of PKCδ by H(2)O(2) resulted in H1R mRNA up-regulation. Overexpression of PKCδ enhanced up-regulation of H1R gene expression, and knockdown of the PKCδ gene suppressed this up-regulation. Histamine or PMA caused translocation PKCδ from the cytosol to the Golgi. U0126, an MEK inhibitor, and DPQ, a poly(ADP-ribose) polymerase-1 inhibitor, suppressed PMA-induced up-regulation of H1R gene expression. These results were confirmed by a luciferase assay using the H1R promoter. Phosphorylation of ERK and Raf-1 in response to PMA was also observed. However, real-time PCR analysis showed no inhibition of H1R mRNA up-regulation by a Raf-1 inhibitor. These results suggest the involvement of the PKCδ/ERK/poly(ADP-ribose) polymerase-1 signaling pathway in histamine- or PMA-induced up-regulation of H1R gene expression in HeLa cells.
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Affiliation(s)
| | - Takuma Terao
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan
| | - Mika Kitai
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan
| | - Mitsuhiro Ikeda
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan
| | | | - Asish Kumar Das
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan
| | - Yoshiaki Kitamura
- Otolaryngology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan
| | - Noriaki Takeda
- Otolaryngology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan
| | - Hiroyuki Fukui
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan.
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22
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Raveendran VV, Tan X, Sweeney ME, Levant B, Slusser J, Stechschulte DJ, Dileepan KN. Lipopolysaccharide induces H1 receptor expression and enhances histamine responsiveness in human coronary artery endothelial cells. Immunology 2011; 132:578-88. [PMID: 21255012 DOI: 10.1111/j.1365-2567.2010.03403.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Summary Histamine is a well-recognized modulator of vascular inflammation. We have shown that histamine, acting via H1 receptors (H1R), synergizes lipopolysaccharide (LPS)-induced production of prostaglandin I(2) (PGI(2)), PGE(2) and interleukin-6 (IL-6) by endothelial cells. The synergy between histamine and LPS was partly attributed to histamine -induced expression of Toll-like receptor 4 (TLR4). In this study, we examined whether LPS stimulates the H1R expression in human coronary artery endothelial cells (HCAEC) with resultant enhancement of histamine responsiveness. Incubation of HCAEC with LPS (10-1000 ng/ml) resulted in two-fold to fourfold increases in H1R mRNA expression in a time-dependent and concentration-dependent fashion. In contrast, LPS treatment did not affect H2R mRNA expression. The LPS-induced H1R mRNA expression peaked by 4 hr after LPS treatment and remained elevated above the basal level for 20-24 hr. Flow cytometric and Western blot analyses revealed increased expression of H1R protein in LPS-treated cells. The specific binding of [(3)H]pyrilamine to H1R in membrane proteins from LPS-treated HCAEC was threefold higher than the untreated cells. The LPS-induced H1R expression was mediated through TLR4 as gene silencing by TLR4-siRNA and treatment with a TLR4 antagonist inhibited the LPS effect. When HCAEC were pre-treated with LPS for 24 hr, washed and challenged with histamine, 17-, 10- and 15-fold increases in PGI(2), PGE(2) and IL-6 production, respectively, were noted. Histamine-induced enhancement of the synthesis of PGI(2), PGE(2) and IL-6 by LPS-primed HCAEC was completely blocked by an H1R antagonist. The results demonstrate that LPS, through TLR4 activation, up-regulates the expression and function of H1R and amplifies histamine-induced inflammatory responses in HCAEC.
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Affiliation(s)
- Vineesh V Raveendran
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
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23
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Tur G, Georgieva EI, Gagete A, López-Rodas G, Rodríguez JL, Franco L. Factor binding and chromatin modification in the promoter of murine Egr1 gene upon induction. Cell Mol Life Sci 2010; 67:4065-77. [PMID: 20582451 PMCID: PMC11115556 DOI: 10.1007/s00018-010-0426-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 05/12/2010] [Accepted: 05/31/2010] [Indexed: 12/22/2022]
Abstract
The influence of chromatin on immediate-early gene expression has been studied in a model of Egr1 induction in intact mouse cells. ChIP analysis of factor and RNA polymerase binding reveals that the gene is constitutively poised for transcription in nonstimulated cells, but a repressing chromatin structure hampers productive transcription. Stimulation with phorbol esters results in a transient activation, which starts at 5 min and peaks at 30 min. Quantitative mapping of promoter occupancy by the different factors shows for the first time that no direct competition between SP1 and EGR1 occurs. The phosphorylation of ELK1 and CREB, which involves both the cascades of MEK1/2 and p38 kinases, is required for gene expression, which ceases following the binding of NAB1 and NAB2 to the promoter. The changes in histone acetylation and the differential recruitment of histone-modifying complexes further show the role of chromatin in the activation of this immediate-early gene.
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Affiliation(s)
- Gema Tur
- The Chromatin Laboratory, Department of Biochemistry and Molecular Biology, University of Valencia, Dr Moliner, 50, 46100 Burjassot, Valencia Spain
| | - Elena I. Georgieva
- The Chromatin Laboratory, Department of Biochemistry and Molecular Biology, University of Valencia, Dr Moliner, 50, 46100 Burjassot, Valencia Spain
| | - Andrés Gagete
- The Chromatin Laboratory, Department of Biochemistry and Molecular Biology, University of Valencia, Dr Moliner, 50, 46100 Burjassot, Valencia Spain
| | - Gerardo López-Rodas
- The Chromatin Laboratory, Department of Biochemistry and Molecular Biology, University of Valencia, Dr Moliner, 50, 46100 Burjassot, Valencia Spain
| | - José L. Rodríguez
- The Chromatin Laboratory, Department of Biochemistry and Molecular Biology, University of Valencia, Dr Moliner, 50, 46100 Burjassot, Valencia Spain
| | - Luis Franco
- The Chromatin Laboratory, Department of Biochemistry and Molecular Biology, University of Valencia, Dr Moliner, 50, 46100 Burjassot, Valencia Spain
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Bhattacharjee A, Mulya A, Pal S, Roy B, Feldman GM, Cathcart MK. Monocyte 15-lipoxygenase gene expression requires ERK1/2 MAPK activity. THE JOURNAL OF IMMUNOLOGY 2010; 185:5211-24. [PMID: 20861348 DOI: 10.4049/jimmunol.1000514] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
IL-13 induces profound expression of 15-lipoxygenase (15-LO) in primary human monocytes. Our studies have defined the functional IL-13R complex, association of Jaks with the receptor components, and the tyrosine phosphorylation of several Stat molecules in response to IL-13. Furthermore, we identified both p38MAPK and protein kinase Cδ as critical regulators of 15-LO expression. In this study, we report an ERK1/2-dependent signaling cascade that regulates IL-13-mediated 15-LO gene expression. We show the rapid phosphorylation/activation of ERK1/2 upon IL-13 exposure. Our results indicate that Tyk2 kinase is required for the activation of ERK1/2, which is independent of the Jak2, p38MAPK, and protein kinase Cδ pathways, suggesting bifurcating parallel regulatory pathways downstream of the receptor. To investigate the signaling mechanisms associated with the ERK1/2-dependent expression of 15-LO, we explored the involvement of transcription factors, with predicted binding sites in the 15-LO promoter, in this process including Elk1, early growth response-1 (Egr-1), and CREB. Our findings indicate that IL-13 induces Egr-1 nuclear accumulation and CREB serine phosphorylation and that both are markedly attenuated by inhibition of ERK1/2 activity. We further show that ERK1/2 activity is required for both Egr-1 and CREB DNA binding to their cognate sequences identified within the 15-LO promoter. Furthermore, by transfecting monocytes with the decoy oligodeoxyribonucleotides specific for Egr-1 and CREB, we discovered that Egr-1 and CREB are directly involved in regulating 15-LO gene expression. These studies characterize an important regulatory role for ERK1/2 in mediating IL-13-induced monocyte 15-LO expression via the transcription factors Egr-1 and CREB.
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Affiliation(s)
- Ashish Bhattacharjee
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
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25
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de Lartigue G, Lur G, Dimaline R, Varro A, Raybould H, Dockray GJ. EGR1 Is a target for cooperative interactions between cholecystokinin and leptin, and inhibition by ghrelin, in vagal afferent neurons. Endocrinology 2010; 151:3589-99. [PMID: 20534729 PMCID: PMC2940532 DOI: 10.1210/en.2010-0106] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Food intake is regulated by signals from peripheral organs, but the way these are integrated remains uncertain. Cholecystokinin (CCK) from the intestine and leptin from adipocytes interact to inhibit food intake. Our aim was to examine the hypothesis that these interactions occur at the level of vagal afferent neurons via control of the immediate early gene EGR1. We now report that CCK stimulates redistribution to the nucleus of early growth response factor-1 (EGR1) in these neurons in vivo and in culture, and these effects are not dependent on EGR1 synthesis. Leptin stimulates EGR1 expression; leptin alone does not stimulate nuclear translocation, but it strongly potentiates the action of CCK. Ghrelin inhibits CCK-stimulated nuclear translocation of EGR1 and leptin-stimulated EGR1 expression. Expression of the gene encoding the satiety peptide cocaine- and amphetamine-regulated transcript (CARTp) is stimulated by CCK via an EGR1-dependent mechanism, and this is strongly potentiated by leptin. Leptin potentiated inhibition of food intake by endogenous CCK in the rat in conditions reflecting changes in EGR1 activation. The data indicate that by separately regulating EGR1 activation and synthesis, CCK and leptin interact cooperatively to define the capacity for satiety signaling by vagal afferent neurons; manipulation of these interactions may be therapeutically beneficial.
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Affiliation(s)
- Guillaume de Lartigue
- Physiological Laboratory, School of Biomedical Sciences, University of Liverpool, Liverpool, UK.
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26
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Onori P, Gaudio E, Franchitto A, Alpini G, Francis H. Histamine regulation of hyperplastic and neoplastic cell growth in cholangiocytes. World J Gastrointest Pathophysiol 2010; 1:38-49. [PMID: 21607141 PMCID: PMC3097946 DOI: 10.4291/wjgp.v1.i2.38] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2010] [Revised: 04/03/2010] [Accepted: 04/10/2010] [Indexed: 02/06/2023] Open
Abstract
Histamine has long been known to be involved in inflammatory events. The discovery of antihistamines dates back to the first half of the 20th century when a Swiss-Italian pharmacologist, Daniel Bovet began his work. In 1957 he was awarded a Nobel Prize for his production of antihistamines for allergy relief. Since that time, histamine has been found to play a role in other events besides allergic reaction. Possibly unbelievable to Bovet and his peers, histamine has now been marked as playing a role in liver pathologies including hepatobiliary diseases.
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27
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Wang JZ, Cai CY, Zhang YM, Zheng JH, Chen YC, Li WQ, Shi GG. N-n-Butyl haloperidol iodide protects against hypoxia/reoxygenation-induced cardiomyocyte injury by modulating protein kinase C activity. Biochem Pharmacol 2010; 79:1428-36. [PMID: 20105432 DOI: 10.1016/j.bcp.2010.01.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2009] [Revised: 01/04/2010] [Accepted: 01/19/2010] [Indexed: 02/05/2023]
Abstract
N-n-Butyl haloperidol iodide (F2), a novel compound derived from haloperidol, protects against the damaging effects of ischemia/reperfusion (I/R) injury in vitro and in vivo. We tested whether the myocardial protection of F2 on cardiomyocyte hypoxia/reoxygenation (H/R) injury is mediated by modulating protein kinase C (PKC) activity in primary cultured cardiomyocytes. Primary cultures of ventricular cardiomyocytes underwent 2-h hypoxia and 30-min reoxygenation. Total PKC activity was measured, and the translocation pattern of PKCalpha, betaII, delta and epsilon isoforms was assessed by fractionated western blot analysis. We investigated the association of PKC isoform translocation and H/R-induced injury in the presence and absence of the specific inhibitors and activator. Measurements included cell damage evaluated by creatine kinase (CK) release, and apoptosis measured by annexin V-FITC assay. In primary cultured cardiomyocytes exposed to H/R, PKCalpha, delta and epsilon were translocated, with no change in PKCbetaII activity. Total PKC activity, CK release and apoptosis were increased after H/R. Treatment with the conventional PKC inhibitor Go6976 reduced early growth response-1 (Egr-1) protein expression and attenuated apoptosis. The PKCepsilon inhibitor peptide epsilonV1-2 increased H/R injury without influencing Egr-1 expression. Pretreatment with F2 inhibited translocation of PKCalpha, increased translocation of PKCepsilon, and relieved the CK release and apoptosis. The protection of F2 was blocked in part by the conventional PKC activator thymeleatoxin (TXA) and epsilonV1-2 peptide. F2 significantly alleviated H/R-induced injury, which might be attributed to the combined benefits of inhibiting PKCalpha and activating PKCepsilon.
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Affiliation(s)
- Jin-Zhi Wang
- Department of Pharmacology, Shantou University Medical College, PR China
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Tatebe K, Zeytun A, Ribeiro RM, Hoffmann R, Harrod KS, Forst CV. Response network analysis of differential gene expression in human epithelial lung cells during avian influenza infections. BMC Bioinformatics 2010; 11:170. [PMID: 20370926 PMCID: PMC2868837 DOI: 10.1186/1471-2105-11-170] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Accepted: 04/06/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The recent emergence of the H5N1 influenza virus from avian reservoirs has raised concern about future influenza strains of high virulence emerging that could easily infect humans. We analyzed differential gene expression of lung epithelial cells to compare the response to H5N1 infection with a more benign infection with Respiratory Syncytial Virus (RSV). These gene expression data are then used as seeds to find important nodes by using a novel combination of the Gene Ontology database and the Human Network of gene interactions. Additional analysis of the data is conducted by training support vector machines (SVM) with the data and examining the orientations of the optimal hyperplanes generated. RESULTS Analysis of gene clustering in the Gene Ontology shows no significant clustering of genes unique to H5N1 response at 8 hours post infection. At 24 hours post infection, however, a number of significant gene clusters are found for nodes representing "immune response" and "response to virus" terms. There were no significant clusters of genes in the Gene Ontology for the control (Mock) or RSV experiments that were unique relative to the H5N1 response. The genes found to be most important in distinguishing H5N1 infected cells from the controls using SVM showed a large degree of overlap with the list of significantly regulated genes. However, though none of these genes were members of the GO clusters found to be significant. CONCLUSIONS Characteristics of H5N1 infection compared to RSV infection show several immune response factors that are specific for each of these infections. These include faster timescales within the cell as well as a more focused activation of immunity factors. Many of the genes that are found to be significantly expressed in H5N1 response relative to the control experiments are not found to cluster significantly in the Gene Ontology. These genes are, however, often closely linked to the clustered genes through the Human Network. This may suggest the need for more diverse annotations of these genes and verification of their action in immune response.
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Affiliation(s)
- Ken Tatebe
- Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ahmet Zeytun
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Ruy M Ribeiro
- Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Robert Hoffmann
- Computational Biology Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kevin S Harrod
- Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Christian V Forst
- Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
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Vascular endothelial growth factor activation of endothelial cells is mediated by early growth response-3. Blood 2009; 115:2520-32. [PMID: 19965691 DOI: 10.1182/blood-2009-07-233478] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Endothelial cell activation and dysfunction underlie many vascular disorders, including atherosclerosis, tumor growth, and sepsis. Endothelial cell activation, in turn, is mediated primarily at the level of gene transcription. Here, we show that in response to several activation agonists, including vascular endothelial growth factor (VEGF), tumor necrosis factor-alpha, and thrombin, endothelial cells demonstrate rapid and profound induction of the early growth response (Egr) genes egr-1 and egr-3. In VEGF-treated endothelial cells, induction of Egr-3 was far greater and more prolonged compared with Egr-1. VEGF-mediated stimulation of Egr-3 involved the inducible binding of NFATc, serum response factor, and CREB to their respective consensus motifs in the upstream promoter region of Egr-3. Knockdown of Egr-3 markedly impaired VEGF-mediated proliferation, migration, and tube formation of endothelial cells and blocked VEGF-induced monocyte adhesion. Egr-3 knockdown abrogated VEGF-mediated vascular outgrowth from ex vivo aortic rings and attenuated Matrigel plug vascularization and melanoma tumor growth in vivo. Together, these findings suggest that Egr-3 is a critical determinant of VEGF signaling in activated endothelial cells. Thus, Egr-3 represents a potential therapeutic target in VEGF-mediated vasculopathic diseases.
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Wan L, Su L, Xie Y, Liu Y, Wang Y, Wang Z. Protein receptor for activated C kinase 1 is involved in morphine reward in mice. Neuroscience 2009; 161:734-42. [DOI: 10.1016/j.neuroscience.2009.03.064] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2008] [Revised: 03/17/2009] [Accepted: 03/21/2009] [Indexed: 11/16/2022]
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