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Su W, Zhao Z, Liu X, Xin J, Xia S, Shen W. Bioinformatics analysis of inflammation and oncology in pulmonary lymphangioleiomyomatosis. Medicine (Baltimore) 2022; 101:e30593. [PMID: 36197266 PMCID: PMC9509179 DOI: 10.1097/md.0000000000030593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study investigates the molecular markers and biological pathways of pulmonary lymphangioleiomyomatosis. We analyzed 2 gene expression profiles in the gene expression omnibus Gene Expression Omnibus database for normal lung tissue and lymphangioleiomyomatosis and identified differential expressed genes in pulmonary lymphangioleiomyomatosis. Ninety-one differentially expressed genes were identified, including 36 upregulated genes and 55 downregulated genes. Hub genes and pathogenic pathways associated with disease development were subsequently identified by enrichment analysis and protein-protein interaction network. Analysis showed that differential expressed genes are mainly involved in the biological behavior of tumor cell proliferation and invasion as well as the inflammatory response. We have identified 10 hub genes in the protein-protein interaction network. Hub genes play an important role in the proliferation and inflammatory response involved in tumor cell proliferation. This study deepens the understanding of lymphangioleiomyomatosis disease and provides a biological basis for further clinical diagnosis and treatment.
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Affiliation(s)
- Wanchun Su
- Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Zimin Zhao
- Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Xin Liu
- Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Jianfeng Xin
- Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Song Xia
- Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Wenbin Shen
- Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
- *Correspondence: Wenbin Shen, Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, No.10, Tieyi St, Beijing 100010, China (e-mail: )
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Wu S, Liu J, Zhang Y, Song J, Zhang Z, Yang Y, Wu M, Tong H. Structural characterization and antagonistic effect against P-selectin-mediated function of SFF-32, a fucoidan fraction from Sargassum fusiforme. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115408. [PMID: 35659565 DOI: 10.1016/j.jep.2022.115408] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 05/16/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sargassum fusiforme (Harvey) Setchell, or Haizao, has been used in traditional Chinese medicine (TCM) since at least the eighth century a.d. S. fusiforme is an essential component of several Chinese formulas, including Haizao Yuhu Decoction, used to treat goiter, and Neixiao Lei Li Wan used to treat scrofuloderma. The pharmacological efficacy of S. fusiforme may be related to its anti-inflammatory effect. AIM OF THE STUDY To determine the structural characteristics of SFF-32, a fucoidan fraction from S. fusiforme, and its antagonistic effect against P-selectin mediated function. MATERIALS AND METHODS The primary structure of SFF-32 was determined using methylation/GC-MS and NMR analysis. Surface morphology and solution conformation of SFF-32 were determined by scanning electron microscopy (SEM), Congo red test, and circular dichroic (CD) chromatography, respectively. The inhibitory effects of SFF-32 against the binding of P-selectin to HL-60 cells were evaluated using flow cytometry, static adhesion assay, and parallel-plate flow chamber assay. Furthermore, the blocking effect of SFF-32 on the interaction between P-selectin and PSGL-1 was evaluated using an in vitro protein binding assay. RESULTS The main linkage types of SFF-32 were proven to →[3)-α-l-Fucp-(1→3,4)-α-l-Fucp-(1]2→[4)-β-d-Manp-(1→3)-d-GlcAp-(1]2→4)-β-d-Manp-(1→3)-β-d-Glcp-(1→4)-β-d-Manp-(1→2,3)-β-d-Galp-(1→4)-β-d-Manp-(1→[4)-α-l-Rhap-(1]3→. The sulfated unit or terminal xylose residues were attached to the backbone through the C-3 of some fucose residues and terminal xylose residues were attached to C-3 of galactose residues. Moreover, SFF-32 disrupted P-selectin-mediated cell adhesion and rolling as well as blocked the interaction between P-selectin and its physiological ligand PSGL-1 in a dose-dependent manner. CONCLUSIONS Blocking the binding between P-selectin and PSGL-1 is the possible underlying mechanism by which SFF-32 inhibits P-selectin-mediated function, which demonstrated that SFF-32 may be a potential anti-inflammatory lead compound.
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Affiliation(s)
- Siya Wu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China
| | - Jian Liu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China
| | - Ya Zhang
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China
| | - Jianxi Song
- Analytical and Testing Center, Beihua University, Jilin, 132013, PR China
| | - Zhongshan Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, Huzhou University, Huzhou Cent Hosp, Huzhou, 313000, PR China
| | - Yue Yang
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China
| | - Mingjiang Wu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China.
| | - Haibin Tong
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China.
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Yu Z, Hong X, Zhang X, Zheng F, Liu F, Xu H, Zhu C, Cai W, Liu D, Yin L, Hu B, Tang D, Dai Y. Global Proteomic Analyses Reveals Abnormal Immune Regulation in Patients With New Onset Ankylosing Spondylitis. Front Immunol 2022; 13:838891. [PMID: 35371008 PMCID: PMC8967996 DOI: 10.3389/fimmu.2022.838891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 02/23/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundAnkylosing spondylitis (AS) is a chronic inflammatory disease with serious consequences and a high rate of morbidity and mortality, In our previous work, we reveal the key features of proteins in new-onset ankylosing spondylitis patients.Material and MethodsAnkylosing spondylitis (AS) is a chronic inflammatory condition that affects the spine, and inflammation plays an essential role in AS pathogenesis. The inflammatory process in AS, however, is still poorly understood due to its intricacy. Systematic proteomic and phosphorylation analyses of peripheral blood mononuclear cells (PBMCs) were used to investigate potential pathways involved in AS pathogenesis.ResultsLiquid chromatography-tandem mass spectrometry (LC–MS/MS) analysis was performed and discovered 782 differentially expressed proteins (DEPs) and 122 differentially phosphorylated proteins (DPPs) between 9 new-onset AS patients and 9 healthy controls. The DEPs were further verified using parallel reaction monitoring (PRM) analysis. PRM analysis verified that 3 proteins (HSP90AB1, HSP90AA1 and HSPA8) in the antigen processing and presentation pathway, 6 proteins (including ITPR1, MYLK and STIM1) in the platelet activation pathway and 10 proteins (including MYL12A, MYL9 and ROCK2) in the leukocyte transendothelial migration pathway were highly expressed in the PBMCs of AS patients.ConclusionThe key proteins involved in antigen processing and presentation, platelet activation and leukocyte transendothelial migration revealed abnormal immune regulation in patients with new-onset AS. These proteins might be used as candidate markers for AS diagnosis and new therapeutic targets, as well as elucidating the pathophysiology of AS.
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Affiliation(s)
- Zongchao Yu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiaoping Hong
- Guangdong Provincial Engineering Research Center of Autoimmune Disease Precision Medicine, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Xiaoli Zhang
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Fengping Zheng
- Guangdong Provincial Engineering Research Center of Autoimmune Disease Precision Medicine, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Fanna Liu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Huixuan Xu
- Guangdong Provincial Engineering Research Center of Autoimmune Disease Precision Medicine, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Chengxin Zhu
- Guangdong Provincial Engineering Research Center of Autoimmune Disease Precision Medicine, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Wanxia Cai
- Guangdong Provincial Engineering Research Center of Autoimmune Disease Precision Medicine, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Dongzhou Liu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Lianghong Yin
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Bo Hu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- *Correspondence: Yong Dai, ; Bo Hu, ; Donge Tang,
| | - Donge Tang
- Guangdong Provincial Engineering Research Center of Autoimmune Disease Precision Medicine, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, China
- *Correspondence: Yong Dai, ; Bo Hu, ; Donge Tang,
| | - Yong Dai
- Guangdong Provincial Engineering Research Center of Autoimmune Disease Precision Medicine, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, China
- *Correspondence: Yong Dai, ; Bo Hu, ; Donge Tang,
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Zhao Y, Tang J, Yang D, Tang C, Chen J. Staphylococcal enterotoxin M induced inflammation and impairment of bovine mammary epithelial cells. J Dairy Sci 2020; 103:8350-8359. [PMID: 32622596 DOI: 10.3168/jds.2019-17444] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 04/20/2020] [Indexed: 01/04/2023]
Abstract
Staphylococcus aureus is one of the major etiological pathogens of bovine mastitis. Its invasion into mammary epithelial cells has been proven to be a key event in the pathogenesis of mastitis. However, the specific pathogenic factors have not been clearly identified. Staphylococcus aureus often triggers infections by releasing virulence factor. Recent several studies reported that staphylococcal enterotoxin M was one of the most frequently found enterotoxin genes associated with bovine mastitis. Thus, the effect of staphylococcal enterotoxin M on inflammation and damage of the bovine mammary epithelial bovine mammary gland epithelial cell line (MAC-T) cells with 48 h treatment was explored in the present study. First, staphylococcal enterotoxin M protein was purified by a Ni-NTA spin column (GE Life Science, Westborough, MA). The levels of tumor necrosis factor-α, IL-6, and monocyte chemoattractant protein 1 (MCP-1) secretion were measured with the corresponding ELISA kits (R&D Systems, Abingdon, UK). Second, cell viability was assessed with a Cell Counting Kit-8 (Bioswamp, Wuhan, China) and the apoptotic percentage of cells was determined by annexin V-fluorescein isothiocyanate (FITC)/propidium iodide (PI; Beyotime, Nanjing, China) staining. Third, ATP concentration, reactive oxygen species (ROS) generation and lactate dehydrogenase (LDH) release were assayed with commercial kits, then mitochondrial membrane potential (ΔΨm) was estimated using fluorescent probe JC-1 (Beyotime). Finally, the production intercellular cell adhesion molecule-1 (ICAM-1), microtubule-associated protein 1A/1B-light chain 3 I/II (LC3 I/II), p62 (Proteintech, Rosemont, IL), and phosphorylation of IκBα, caspase 3, and mammalian target of rapamycin were detected by Western blot. The results showed that staphylococcal enterotoxin M induced inflammation of epithelial cells (upregulating tumor necrosis factor-α, IL-6, MCP-1, and ICAM-1 production) and activated NF-κB (promoting phosphorylation of IκBα). Furthermore, staphylococcal enterotoxin M impaired MAC-T cells via cell necrosis (enhancing LDH release), apoptosis (annexin V-FITC/PI stain, exacerbating oxidative stress, decreasing ΔΨm and intracellular ATP concentration, and activating caspase 3), but independent of autophagy (nonsignificantly increasing LC3-II, decreasing p62 expression, and activating mammalian target of rapamycin). Thereby, staphylococcal enterotoxin M induced the inflammatory property of bovine mammary epithelial cells by boosting cytokine, chemokine, and adhesion molecule production. Furthermore, it caused epithelial cell dysfunction via depressing cell viability and initiating cell necrosis and apoptosis. Because epithelial cells played important roles in orchestrating the inflammatory response and protecting bovine mammary tissue from mastitis, our results indicated that staphylococcal enterotoxin M may be associated with mastitis.
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Affiliation(s)
- Yanying Zhao
- Key Laboratory of Qinghai-Tibetan Plateau, Animal Genetic Resource Reservation and Utilization of Ministry of Education, College of Life Science and Technology, Southwest Minzu University, Chengdu, China, 610041
| | - Junni Tang
- Key Laboratory of Qinghai-Tibetan Plateau, Animal Genetic Resource Reservation and Utilization of Ministry of Education, College of Life Science and Technology, Southwest Minzu University, Chengdu, China, 610041.
| | - Danru Yang
- Key Laboratory of Qinghai-Tibetan Plateau, Animal Genetic Resource Reservation and Utilization of Ministry of Education, College of Life Science and Technology, Southwest Minzu University, Chengdu, China, 610041
| | - Cheng Tang
- Key Laboratory of Qinghai-Tibetan Plateau, Animal Genetic Resource Reservation and Utilization of Ministry of Education, College of Life Science and Technology, Southwest Minzu University, Chengdu, China, 610041
| | - Juan Chen
- Key Laboratory of Qinghai-Tibetan Plateau, Animal Genetic Resource Reservation and Utilization of Ministry of Education, College of Life Science and Technology, Southwest Minzu University, Chengdu, China, 610041
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Wang X, Wang H, Pierre JF, Wang S, Huang H, Zhang J, Liang S, Zeng Q, Zhang C, Huang M, Ruan C, Lin J, Li H. Marine microalgae bioengineered Schizochytrium sp. meal hydrolysates inhibits acute inflammation. Sci Rep 2018; 8:9848. [PMID: 29959357 PMCID: PMC6026148 DOI: 10.1038/s41598-018-28064-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 06/07/2018] [Indexed: 01/15/2023] Open
Abstract
Bioengineered marine microalgae Schizochytrium sp. is currently used to produce docosahexaenoic acid (DHA). However, following DHA extraction, the remaining protein-rich materials are not well utilized. In this study, we report that marine microalgae bioengineered Schizochytrium sp. hydrolysate (MESH), which exhibits a unique peptide profile as identified by Ultra Performance Liquid Chromatography coupled with Q-TOF mass spectrometry(UPLC/Q-TOF-MS), ameliorated bowel inflammation in mice. In a mouse model of experimentalcolitis induced by dextran sulfate sodium, compared with the control mice, the mice treated with MESH were highly resistant to colitis, as demonstrated by marked reductions in body weight loss, clinical colitis scores, colonic histological damage, and colonic inflammation. Mechanistically, MESH attenuated the induction of pro-inflammatory cytokines and increased the induction of anti-inflammatory cytokines. MESH also promoted the proliferation of colonic crypt stem cells and progenitor cells required for crypt repair. Collectively, these results reveal a previously unrecognized role of MESH as a potential anti-inflammatory treatment for colitis.
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Affiliation(s)
- Xiaoli Wang
- Institute of Applied Biotechnology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Heng Wang
- Institute of Applied Biotechnology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Joseph F Pierre
- Section of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, The University of Chicago, Chicago, IL, 60637, USA
| | - Sheng Wang
- Department of Human Genetics, The University of Chicago, Chicago, IL, 60637, USA
| | - Huifang Huang
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Jun Zhang
- Institute of Applied Biotechnology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Shuangzhen Liang
- Institute of Applied Biotechnology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Qingzhu Zeng
- Institute of Applied Biotechnology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Chenqing Zhang
- Institute of Applied Biotechnology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Meijuan Huang
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Chengxu Ruan
- Institute of Applied Biotechnology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Juan Lin
- Fujian Key Laboratory of Marine Enzyme Engineering, Fuzhou University, Fuzhou, Fujian, China
| | - Hao Li
- Institute of Applied Biotechnology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350116, China.
- Section of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, The University of Chicago, Chicago, IL, 60637, USA.
- Fujian LandhowbioTech. Corp.,Ltd., Fuzhou, Fujian, 350108, China.
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Tong H, Wu S, Song K, Liu J, Song X, Zhang X, Huang L, Wu M. Characterization of a P-selectin-binding moiety from Bupleurum chinense polysaccharide and its antagonistic effect against P-selectin-mediated function. Carbohydr Polym 2018; 196:110-116. [PMID: 29891277 DOI: 10.1016/j.carbpol.2018.05.035] [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: 02/17/2018] [Revised: 04/14/2018] [Accepted: 05/11/2018] [Indexed: 12/11/2022]
Abstract
P-selectin is a promising therapeutic target for acute inflammation-related diseases, and interest has been growing in the search for high-affinity glycoconjugate ligands that can target the initial P-selectin-mediated recruitment of neutrophils to the site of inflammation. In our previous study, we isolated a water-soluble polysaccharide (BCPS) from Bupleurum chinense and showed that it exhibits anti-inflammatory effect by antagonizing P-selectin-mediated adhesion of HL-60 cells to CHO-P cells. In this study, we prepared a P-selectin-based affinity chromatography medium and used it to purify the P-selectin-binding moiety of BCPS. The purified P-selectin-binding moiety of BCPS, designated as BCPS-m, was mainly composed of arabinose, galactose and glucose, and had a relative molecular weight of 3600 Da. The backbone of BCPS-m was composed of 1,5-linked arabinose, 1,4-linked and 1,4,6-linked glucose, and with branched 1-linked glucose or galactose terminal. BCPS-m could disrupt the P-selectin-mediated binding of HL-60 cells to CHO-P cells (CHO cells that stably expressed an exogenous P-selectin). It also blocked the interaction between P-selectin and its physiological ligand PSGL-1 significantly, resulting in much greater reduction (77%) in P-selectin-PSGL-1 binding than that caused by BCPS (35%). The data suggested that BCPS-m could be the key P-selectin-binding moiety of BCPS, and that it may be a better P-selectin antagonist than BCPS.
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Affiliation(s)
- Haibin Tong
- Center for Post-doctoral Research, Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China.
| | - Siya Wu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Kangxing Song
- Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China
| | - Jian Liu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Xindan Song
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Xu Zhang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Luqi Huang
- Center for Post-doctoral Research, Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Mingjiang Wu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China.
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Lacal Romero J, Shen Z, Baumgardner K, Wei J, Briggs SP, Firtel RA. The Dictyostelium GSK3 kinase GlkA coordinates signal relay and chemotaxis in response to growth conditions. Dev Biol 2018; 435:56-72. [PMID: 29355521 DOI: 10.1016/j.ydbio.2018.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/11/2018] [Accepted: 01/11/2018] [Indexed: 12/21/2022]
Abstract
GSK3 plays a central role in orchestrating key biological signaling pathways, including cell migration. Here, we identify GlkA as a GSK3 family kinase with functions that overlap with and are distinct from those of GskA. We show that GlkA, as previously shown for GskA, regulates the cell's cytoskeleton through MyoII assembly and control of Ras and Rap1 function, leading to aberrant cell migration. However, there are both qualitative and quantitative differences in the regulation of Ras and Rap1 and their downstream effectors, including PKB, PKBR1, and PI3K, with glkA- cells exhibiting a more severe chemotaxis phenotype than gskA- cells. Unexpectedly, the severe glkA- phenotypes, but not those of gskA-, are only exhibited when cells are grown attached to a substratum but not in suspension, suggesting that GlkA functions as a key kinase of cell attachment signaling. Using proteomic iTRAQ analysis we show that there are quantitative differences in the pattern of protein expression depending on the growth conditions in wild-type cells. We find that GlkA expression affects the cell's proteome during vegetative growth and development, with many of these changes depending on whether the cells are grown attached to a substratum or in suspension. These changes include key cytoskeletal and signaling proteins known to be essential for proper chemotaxis and signal relay during the aggregation stage of Dictyostelium development.
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Affiliation(s)
- Jesus Lacal Romero
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0380, USA
| | - Zhouxin Shen
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0380, USA
| | - Kimberly Baumgardner
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0380, USA
| | - Jing Wei
- JadeBio, Inc., 505 Coast Boulevard South Suite 206, La Jolla, CA 92037, USA
| | - Steven P Briggs
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0380, USA
| | - Richard A Firtel
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0380, USA.
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Increased expression of Siglec-9 in chronic obstructive pulmonary disease. Sci Rep 2017; 7:10116. [PMID: 28860481 PMCID: PMC5579055 DOI: 10.1038/s41598-017-09120-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 07/14/2017] [Indexed: 12/12/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a common inflammatory lung disease. Sialic acid-binding immunoglobulin-type lectins 9 (Siglec-9) is predominantly expressed on innate immune cells and has been shown to exert regulatory effect on immune cells through glycan recognition. Soluble Siglec-9 (sSiglec-9), the extracellular region of Siglec-9, might fulfill its function partly by competitive inhibiting siglec-9 binding to its ligands; however, the role of Siglec-9 and sSiglec-9 in the pathogenesis COPD remain largely unknown. In this study, we showed that Siglec-9 expression in alveolar and peripheral blood neutrophil were increased in COPD patients by immunofluorescence and flow cytometry, respectively. Plasma levels of sSiglelc-9 were elevated in COPD patients by ELISA. In vitro, Siglec-9 expression and/or sSiglelc-9 levels were up-regulated by cigarette smoke extract (CSE), lipopolysaccharide (LPS), some cytokines, and dexamethasone (DEX). Recombinant sSiglce-9 increased oxidative burst in neutrophil and enhanced neutrophil chemotaxis toward IL-8 independent on CXCR1 and CXCR2 expression, but it did not affect neutrophil apoptosis or secretions of inflammatory cytokines. In conclusion, Siglec-9 was complementarily increased to induce a negative feedback loop to limit neutrophil activation in COPD, sSiglce-9 enhanced neutrophil ROS and chemotaxis toward IL-8 likely via competitively inhibiting ligands binding to Siglec-9.
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Dias KST, de Paula CT, dos Santos T, Souza IN, Boni MS, Guimarães MJ, da Silva FM, Castro NG, Neves GA, Veloso CC, Coelho MM, de Melo ISF, Giusti FC, Giusti-Paiva A, da Silva ML, Dardenne LE, Guedes IA, Pruccoli L, Morroni F, Tarozzi A, Viegas C. Design, synthesis and evaluation of novel feruloyl-donepezil hybrids as potential multitarget drugs for the treatment of Alzheimer's disease. Eur J Med Chem 2017; 130:440-457. [DOI: 10.1016/j.ejmech.2017.02.043] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 02/15/2017] [Accepted: 02/17/2017] [Indexed: 01/04/2023]
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10
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Fakhrudin N, Dwi Astuti E, Sulistyawati R, Santosa D, Susandarini R, Nurrochmad A, Wahyuono S. n-Hexane Insoluble Fraction of Plantago lanceolata Exerts Anti-Inflammatory Activity in Mice by Inhibiting Cyclooxygenase-2 and Reducing Chemokines Levels. Sci Pharm 2017; 85:scipharm85010012. [PMID: 28335408 PMCID: PMC5388149 DOI: 10.3390/scipharm85010012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/05/2017] [Accepted: 03/08/2017] [Indexed: 12/12/2022] Open
Abstract
Inflammation is involved in the progression of many disorders, such as tumors, arthritis, gastritis, and atherosclerosis. Thus, the development of new agents targeting inflammation is still challenging. Medicinal plants have been used traditionally to treat various diseases including inflammation. A previous study has indicated that dichloromethane extract of P. lanceolata leaves exerts anti-inflammatory activity in an in vitro model. Here, we examined the in vivo anti-inflammatory activities of a n-hexane insoluble fraction of P. lanceolata leaves dichloromethane extract (HIFPL). We first evaluated its potency to reduce paw edema induced by carrageenan, and the expression of the proinflammatory enzyme, cyclooxygenase (COX)-2, in mice. The efficacy of HIFPL to inhibit COX-2 was also evaluated in an in vitro enzymatic assay. We further studied the effect of HIFPL on leukocytes migration in mice induced by thioglycollate. The level of chemokines facilitating the migration of leukocytes was also measured. We found that HIFPL (40, 80, 160 mg/kg) demonstrated anti-inflammatory activities in mice. The HIFPL reduced the volume of paw edema and COX-2 expression. However, HIFPL acts as an unselective COX-2 inhibitor as it inhibited COX-1 with a slightly higher potency. Interestingly, HIFPL strongly inhibited leukocyte migration by reducing the level of chemokines, Interleukine-8 (IL-8) and Monocyte chemoattractant protein-1 (MCP-1).
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Affiliation(s)
- Nanang Fakhrudin
- Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
- Center for Natural Antiinfective Research, Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
| | - Eny Dwi Astuti
- Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
| | - Rini Sulistyawati
- Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
- Akademi Analis Farmasi Al Islam Yogyakarta, Gedongkiwo, Mantrijeron, Yogyakarta 55142, Indonesia.
| | - Djoko Santosa
- Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
- Center for Natural Antiinfective Research, Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
| | - Ratna Susandarini
- Faculty of Biology, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
| | - Arief Nurrochmad
- Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
| | - Subagus Wahyuono
- Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
- Center for Natural Antiinfective Research, Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
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11
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Tong H, Jiang G, Guan X, Wu H, Song K, Cheng K, Sun X. Characterization of a polysaccharide from Rosa davurica and inhibitory activity against neutrophil migration. Int J Biol Macromol 2016; 89:111-7. [PMID: 27112979 DOI: 10.1016/j.ijbiomac.2016.04.062] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/15/2016] [Accepted: 04/21/2016] [Indexed: 12/21/2022]
Abstract
The rapid recruitment of neutrophils from peripheral blood into infected sites is critical step for inflammatory responses; however, the excessive and improper recruitment can lead to serious tissue damages. Thus, it is a promising strategy to inhibit their excessive recruitment for treating inflammation-related disease. Here, we isolated a polysaccharide (RDPA1) from Rosa davurica, to evaluate its physicochemical property and inhibitory effects on neutrophil migration. RDPA1 was obtained by hot-water extraction, ethanol precipitation, and fractionated by DEAE-cellulose and Sepharose CL-6B columns. RDPA1 significantly inhibited in vitro migration of human neutrophils evaluated by transwell chamber and impacted the migratory behavior observed by time-lapsed microscopy, we found the migrated distance and average velocity of RDPA1-treated cells were greatly reduced. In addition, RDPA1 treatment impaired in vivo neutrophil infiltration in the peritonitis mice. RDPA1 exhibited significant blocking capacity of the interaction between β2 integrins and ICAM-1 evaluated by flow cytometry and in vitro protein binding assay. Together, these results suggest RDPA1 could be considered as a potential candidate for developing a novel anti-inflammatory agent.
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Affiliation(s)
- Haibin Tong
- Jilin Provincial Key Laboratory of Molecular Geriatric Medicine, Life Science Research Center, Beihua University, Jilin 132013, China; Wood Material Science and Engineering Key Laboratory of Jilin Province, Beihua University, Jilin 132013, China
| | - Guiquan Jiang
- Wood Material Science and Engineering Key Laboratory of Jilin Province, Beihua University, Jilin 132013, China
| | - Xingang Guan
- Jilin Provincial Key Laboratory of Molecular Geriatric Medicine, Life Science Research Center, Beihua University, Jilin 132013, China
| | - Hong Wu
- Laboratory of Cell Imaging, Henan University of Traditional Chinese Medicine, Zhengzhou 450002, China
| | - Kangxing Song
- Department of Cardiology, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - Kuan Cheng
- Affiliated Hospital, Northeast Normal University, Changchun 130024, China
| | - Xin Sun
- Jilin Provincial Key Laboratory of Molecular Geriatric Medicine, Life Science Research Center, Beihua University, Jilin 132013, China.
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12
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Tong H, Song J, Zhang Z, Mao D, Sun G, Jiang G. Inhibitory function of P-selectin-mediated leukocyte adhesion by the polysaccharides from Sanguisorba officinalis. PHARMACEUTICAL BIOLOGY 2015; 53:345-349. [PMID: 25331826 DOI: 10.3109/13880209.2014.919597] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT P-selectin is a promising target for inflammatory-related diseases. Polysaccharides are the active ingredients of Sanguisorba officinalis L. (Rosaceae) responsible for its anti-inflammatory activities; however, the molecular mechanism is not clear yet. OBJECTIVE This study evaluates the effects of polysaccharides (SOPs) from Sanguisorba officinalis on their antagonistic function against P-selectin-mediated leukocyte adhesion. MATERIALS AND METHODS The antagonistic function of SOPs was investigated by flow cytometry and static adhesion assay at the concentrations of 25 and 100 μg/ml. The dynamic interaction between HL-60 cells and CHO-P cell monolayer treated with SOPs (25 and 100 μg/ml) was analyzed in a parallel plate flow chamber, and quantitatively calculated by ImageJ software (NIH, Bethesda, MD). In vitro protein binding assay was carried out to evaluate the blocking effects of SOPs (25 and 100 μg/ml) on the interaction between P-selectin and PSGL-1. RESULTS SOPs-treatment (100 μg/ml) significantly reduced the percentage of HL-60 cells binding to P-selectin (p < 0.01) determined by flow cytometry. In addition, SOPs (25 and 100 μg/ml) markedly blocked the adhesion between HL-60 cells and CHO-P cells under static condition, and the inhibitory rates reached 39.9% and 71.2%, respectively. Compared with the positive control group, SOPs-treatment (25 and 100 μg/ml) significantly reduced the percentage of HL-60 cells rolling on CHO-P cell monolayers by 43.5% and 75.2%, respectively. Protein binding assay showed the interaction between P-selectin and PSGL-1 was significantly blocked by SOPs. DISCUSSION AND CONCLUSION SOPs possess a significant antagonistic function against P-selectin-mediated leukocyte adhesion, and SOPs could be considered as a promising candidate for amelioration of inflammation-related diseases.
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Affiliation(s)
- Haibin Tong
- College of Forestry, Beihua University , Jilin , China
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13
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Inhibition of inflammatory injure by polysaccharides from Bupleurum chinense through antagonizing P-selectin. Carbohydr Polym 2014; 105:20-5. [PMID: 24708947 DOI: 10.1016/j.carbpol.2014.01.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 01/10/2014] [Accepted: 01/12/2014] [Indexed: 12/21/2022]
Abstract
P-selectin-mediated adhesion between endothelium and neutrophils is a crucial process leading to acute inflammatory injure. Thus, P-selectin has been considered as promising target for therapeutics of acute inflammatory-related diseases. In the present study, the water-soluble polysaccharides (BCPs) were isolated from Bupleurum chinense, and we evaluated their therapeutical effects on acute inflammatory injure and antagonistic function against P-selectin-mediated neutrophil adhesion. Our results showed that BCPs significantly impaired the leukocyte infiltration and relieve lung injury in LPS-induced acute pneumonia model. BCPs significantly blocked the binding of P-selectin to neutrophils and inhibited P-selectin-mediated neutrophils rolling along CHO-P cell monolayer. The result from in vitro protein binding assay showed a direct evidence indicating that BCPs-treatment significantly eliminated the interaction between rhP-Fc and its physiological ligand PSGL-1 at protein level. Together, these results provide a novel therapeutical strategy for amelioration of inflammation-related disease processes by polysaccharides from B. chinense.
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14
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Bhalla Y, Gupta VK, Jaitak V. Anticancer activity of essential oils: a review. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:3643-53. [PMID: 23765679 DOI: 10.1002/jsfa.6267] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 06/02/2013] [Accepted: 06/14/2013] [Indexed: 05/06/2023]
Abstract
Natural essential oil constituents play an important role in cancer prevention and treatment. Essential oil constituents from aromatic herbs and dietary plants include monoterpenes, sesquiterpenes, oxygenated monoterpenes, oxygenated sesquiterpenes and phenolics among others. Various mechanisms such antioxidant, antimutagenic and antiproliferative, enhancement of immune function and surveillance, enzyme induction and enhancing detoxification, modulation of multidrug resistance and synergistic mechanism of volatile constituents are responsible for their chemopreventive properties. This review covers the most recent literature to summarize structural categories and molecular anticancer mechanisms of constituents from aromatic herbs and dietary plants.
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Affiliation(s)
- Yashika Bhalla
- Centre for Chemical and Pharmaceutical Sciences, Central University of Punjab, Bathinda, (Pb), 151001, India
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15
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Lu G, Wu Y, Jiang Y, Wang S, Hou Y, Guan X, Brunzelle J, Sirinupong N, Sheng S, Li C, Yang Z. Structural insights into neutrophilic migration revealed by the crystal structure of the chemokine receptor CXCR2 in complex with the first PDZ domain of NHERF1. PLoS One 2013; 8:e76219. [PMID: 24098448 PMCID: PMC3788737 DOI: 10.1371/journal.pone.0076219] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 08/21/2013] [Indexed: 11/17/2022] Open
Abstract
Neutrophil plays an essential role in host defense against infection, but uncontrolled neutrophilic infiltration can cause inflammation and severe epithelial damage. We recently showed that CXCR2 formed a signaling complex with NHERF1 and PLC-2, and that the formation of this complex was required for intracellular calcium mobilization and neutrophilic transepithelial migration. To uncover the structural basis of the complex formation, we report here the crystal structure of the NHERF1 PDZ1 domain in complex with the C-terminal sequence of CXCR2 at 1.16 Å resolution. The structure reveals that the CXCR2 peptide binds to PDZ1 in an extended conformation with the last four residues making specific side chain interactions. Remarkably, comparison of the structure to previously studied PDZ1 domains has allowed the identification of PDZ1 ligand-specific interactions and the mechanisms that govern PDZ1 target selection diversities. In addition, we show that CXCR2 can bind both NHERF1 PDZ1 and PDZ2 in pulldown experiments, consistent with the observation that the peptide binding pockets of these two PDZ domains are highly structurally conserved. The results of this study therefore provide structural basis for the CXCR2-mediated neutrophilic migration and could have important clinical applications in the prevention and treatment of numerous neutrophil-dependent inflammatory disorders.
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Affiliation(s)
- Guorong Lu
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, Michigan, United States of America
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16
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Matera MG, Calzetta L, Segreti A, Cazzola M. Emerging drugs for chronic obstructive pulmonary disease. Expert Opin Emerg Drugs 2012; 17:61-82. [DOI: 10.1517/14728214.2012.660917] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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17
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Wu Y, Wang S, Farooq SM, Castelvetere MP, Hou Y, Gao JL, Navarro JV, Oupicky D, Sun F, Li C. A chemokine receptor CXCR2 macromolecular complex regulates neutrophil functions in inflammatory diseases. J Biol Chem 2011; 287:5744-55. [PMID: 22203670 DOI: 10.1074/jbc.m111.315762] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Inflammation plays an important role in a wide range of human diseases such as ischemia-reperfusion injury, arteriosclerosis, cystic fibrosis, inflammatory bowel disease, etc. Neutrophilic accumulation in the inflamed tissues is an essential component of normal host defense against infection, but uncontrolled neutrophilic infiltration can cause progressive damage to the tissue epithelium. The CXC chemokine receptor CXCR2 and its specific ligands have been reported to play critical roles in the pathophysiology of various inflammatory diseases. However, it is unclear how CXCR2 is coupled specifically to its downstream signaling molecules and modulates cellular functions of neutrophils. Here we show that the PDZ scaffold protein NHERF1 couples CXCR2 to its downstream effector phospholipase C (PLC)-β2, forming a macromolecular complex, through a PDZ-based interaction. We assembled a macromolecular complex of CXCR2·NHERF1·PLC-β2 in vitro, and we also detected such a complex in neutrophils by co-immunoprecipitation. We further observed that the CXCR2-containing macromolecular complex is critical for the CXCR2-mediated intracellular calcium mobilization and the resultant migration and infiltration of neutrophils, as disrupting the complex with a cell permeant CXCR2-specific peptide (containing the PDZ motif) inhibited intracellular calcium mobilization, chemotaxis, and transepithelial migration of neutrophils. Taken together, our data demonstrate a critical role of the PDZ-dependent CXCR2 macromolecular signaling complex in regulating neutrophil functions and suggest that targeting the CXCR2 multiprotein complex may represent a novel therapeutic strategy for certain inflammatory diseases.
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Affiliation(s)
- Yanning Wu
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
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18
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Kirsten A, Watz H, Kretschmar G, Pedersen F, Bock D, Meyer-Sabellek W, Magnussen H. Efficacy of the pan-selectin antagonist Bimosiamose on ozone-induced airway inflammation in healthy subjects – A double blind, randomized, placebo-controlled, cross-over clinical trial. Pulm Pharmacol Ther 2011; 24:555-8. [DOI: 10.1016/j.pupt.2011.04.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 02/04/2011] [Accepted: 04/07/2011] [Indexed: 10/18/2022]
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19
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Structural characterization and in vitro inhibitory activities in P-selectin-mediated leukocyte adhesion of polysaccharide fractions isolated from the roots of Physalis alkekengi. Int J Biol Macromol 2011; 49:210-7. [DOI: 10.1016/j.ijbiomac.2011.04.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 04/11/2011] [Accepted: 04/22/2011] [Indexed: 11/16/2022]
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20
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Seo HJ, Huh JE, Han JH, Jeong SJ, Jang J, Lee EO, Lee HJ, Lee HJ, Ahn KS, Kim SH. Polygoni Rhizoma Inhibits Inflammatory Response through Inactivation of Nuclear Factor-kappaB and Mitogen Activated Protein Kinase Signaling Pathways in RAW264.7 Mouse Macrophage Cells. Phytother Res 2011; 26:239-45. [DOI: 10.1002/ptr.3530] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 04/04/2011] [Accepted: 04/04/2011] [Indexed: 11/09/2022]
Affiliation(s)
- Hyuk-Jin Seo
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Jeong-Eun Huh
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Jong-Hyun Han
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Soo-Jin Jeong
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Jinsil Jang
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Eun-Ok Lee
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Hyo-Jung Lee
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Hyo-Jeong Lee
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Kyoo Seok Ahn
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
| | - Sung-Hoon Kim
- College of Oriental Medicine; Kyung Hee University; Seoul 130-701 South Korea
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Fuxe J, Lashnits E, O'Brien S, Baluk P, Tabruyn SP, Kuhnert F, Kuo C, Thurston G, McDonald DM. Angiopoietin/Tie2 signaling transforms capillaries into venules primed for leukocyte trafficking in airway inflammation. THE AMERICAN JOURNAL OF PATHOLOGY 2010; 176:2009-18. [PMID: 20133818 DOI: 10.2353/ajpath.2010.090976] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Vascular endothelial growth factor (VEGF) is a key angiogenic factor in tumors, but less is known about what drives vascular remodeling in inflammation, where plasma leakage and leukocyte influx are prominent features. In chronic airway inflammation in mice infected by the bacterium Mycoplasma pulmonis (M. pulmonis), the segment of the microvasculature that supports leukocyte adhesion and migration expands through remodeling of capillaries into vessels with features of venules. Here, we report that the angiopoietin/Tie2 pathway is an essential driving force for capillary remodeling into venules in M. pulmonis-infected mouse airways. Similar to M. pulmonis infection, systemic overexpression of angiopoietin-1 (Ang1) resulted in remodeling of airway capillaries into venular-like vessels that expressed venous markers like P-selectin, ICAM-1, and EphB4 and were sites of leukocyte adhesion during lipopolysaccharide-induced acute inflammation. Ang1 and Ang2 protein increased in M. pulmonis-infected mouse airways but came from different cellular sources: Ang1 was expressed in infiltrating neutrophils and Ang2 in endothelial cells. Indeed, systemic administration of soluble Tie2 inhibited capillary remodeling, induction of venous markers, and leukocyte influx in M. pulmonis-infected mouse airways. Together, these findings suggest that blockade of the Ang/Tie2 pathway may represent a therapeutic approach in airway inflammation.
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Affiliation(s)
- Jonas Fuxe
- Department of Anatomy, University of California San Francisco, San Francisco, CA 94143-0452, USA
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22
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Cho W, Nam JW, Kang HJ, Windono T, Seo EK, Lee KT. Zedoarondiol isolated from the rhizoma of Curcuma heyneana is involved in the inhibition of iNOS, COX-2 and pro-inflammatory cytokines via the downregulation of NF-κB pathway in LPS-stimulated murine macrophages. Int Immunopharmacol 2009; 9:1049-57. [DOI: 10.1016/j.intimp.2009.04.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Revised: 04/21/2009] [Accepted: 04/21/2009] [Indexed: 10/20/2022]
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23
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Zhang X, Cao J, Jiang L, Zhong L. Suppressive effects of hydroxytyrosol on oxidative stress and nuclear Factor-kappaB activation in THP-1 cells. Biol Pharm Bull 2009; 32:578-82. [PMID: 19336887 DOI: 10.1248/bpb.32.578] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was designed to investigate whether hydroxytyrosol (HT) may ameliorate oxidative stress and nuclear factor kappaB (NF-kappaB) activation in the lipopolysaccharide (LPS)-stimulated THP-1 cell line. We measured the intracellular reactive oxygen species (ROS) formation using 2,7-dichlorofluorescein diacetate (DCFH-DA) as a fluorescent probe. Intracellular glutathione (GSH) level was estimated by fluorometric methods. Nitric oxide (NO) production was measured as nitrite (a stable metabolite of NO) concentrations using the Griess reagent system following Jiancheng Institute of Biotechnology protocols. To study the effect of HT on LPS-induced NF-kappaB activation in THP-1 cells, Western blot analysis of the nuclear fraction of cell lysates was performed. The results showed that treatment of THP-1 cells with HT significantly reduced LPS-stimulated NO production and ROS formation in a concentration-dependent manner. HT at 50 and 100 microM concentrations increased the GSH level. The specific DNA-binding activities of NF-kappaB on nuclear extracts from 50 and 100 microM HT treatments were significantly suppressed. The antioxidant N-acetylcysteine (NAC) also showed the same effects as HT on LPS-induced ROS and NO generation, change of GSH level, and NF-kappaB activation. These findings suggest that HT has antioxidant activity to suppress intracellular oxidative stress and NF-kappaB activation in THP-1 cells.
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Affiliation(s)
- Xiaomei Zhang
- Department of Laboratory Medicine, College of Medicine, Dalian University, China
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24
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Cho W, Park SJ, Shin JS, Noh YS, Cho EJ, Nam JH, Lee KT. Anti-inflammatory Effects of the Methanol Extract of Polytrichum Commune via NF-κB Inactivation in RAW 264.7 Macrophage Cells. Biomol Ther (Seoul) 2008. [DOI: 10.4062/biomolther.2008.16.4.385] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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25
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Madureira P, Cunha EM, Aguas AP. Acute depletion and recovery of peritoneal B-1 lymphocytes in BALB/c mice after a single injection of mercury chloride. Immunopharmacol Immunotoxicol 2007; 29:311-22. [PMID: 17849274 DOI: 10.1080/08923970701513518] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The acute toxicity of mercury (Hg) to B cells was studied in the peritoneal cavity of BALB/c mice, a coelomic space where both B-1 and B-2 subsets of B lymphocytes are present. Up to 24 hr after a single in situ Hg injection, the peritoneal cavity became virtually devoid of lymphocytes, particularly of the B-1 subset. Lymphocyte depletion was more severe for B than T cells. This depletion was associated with partial lymphocyte activation (CD69(+)) at 6 hr of treatment and it was due to apoptosis rather than to necrosis. Partial recovery of both B and T cells was observed in the peritoneal cavity 48 hr after the Hg injection. The phenomenon was followed by a second decrease in peritoneal lymphocytes 72 hr after Hg. Neutrophils that entered the peritoneal cavity because of the Hg injection were resistant to apoptosis. No significant changes in lymphocyte number or subpopulation were found in the spleen and thymus of the mice up to 72 hr after the Hg treatment. We concluded that B lymphocytes were severely affected by the toxic effects of Hg. Our data suggest that Hg-induced unbalance in the repertoire of B cells, of the B-1 subset in particular, may result later in the secretion of the high titres of pathogenic autoantibodies that are found in the Hg-induced lupus disorder of BALB/c mice.
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Affiliation(s)
- P Madureira
- Laboratory of Immunology Mário-Arala Chaves, Abel Salazar Institute for Biomedical Sciences, ICBAS, University of Porto, Porto, Portugal.
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26
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Kang DG, Moon MK, Lee AS, Kwon TO, Kim JS, Lee HS. Cornuside Suppresses Cytokine-Induced Proinflammatory and Adhesion Molecules in the Human Umbilical Vein Endothelial Cells. Biol Pharm Bull 2007; 30:1796-9. [PMID: 17827743 DOI: 10.1248/bpb.30.1796] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cornuside is a bisiridoid glucoside compound isolated from the fruit of Cornus officinalis SIEB. et ZUCC. The present study was designed to examine the effects of cornuside on expression levels of cytokine-induced proinflammatory and adhesion molecules in the human umbilical vein endothelial cells (HUVECs). Cornuside treatment attenuated tumor necrosis factor-alpha (TNF-alpha)-induced nuclear factor-kappa B (NF-kappaB) p65 translocation in HUVECs. In addition, cornuside suppressed the expression levels of endothelial cell adhesion molecules including intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) induced by TNF-alpha. TNF-alpha-induced monocyte chemoattractant protein 1 (MCP-1) expression was also attenuated by treatment of cornuside. These inhibitory effects of cornuside on proinflammatory and adhesion molecules were not due to decreased HUVEC viability as assessed by MTT test. Taken together, the present study suggests that cornuside suppresses expression levels of cytokine-induced proinflammatory and adhesion molecules in the human endothelial cells.
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Affiliation(s)
- Dae Gill Kang
- Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeon-Buk 570-749, Republic of Korea
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27
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Ariel A, Li PL, Wang W, Tang WX, Fredman G, Hong S, Gotlinger KH, Serhan CN. The Docosatriene Protectin D1 Is Produced by TH2 Skewing and Promotes Human T Cell Apoptosis via Lipid Raft Clustering. J Biol Chem 2005; 280:43079-86. [PMID: 16216871 DOI: 10.1074/jbc.m509796200] [Citation(s) in RCA: 187] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Docosahexaenoic acid, a major omega-3 fatty acid in human brain, synapses, retina, and other neural tissues, displays beneficial actions in neuronal development, cancer, and inflammatory diseases by mechanisms that remain to be elucidated. In this study we found, using lipid mediator informatics employing liquid chromatography-tandem mass spectrometry, that (10,17S)-docosatriene/neuroprotectin D1, now termed protectin D1 (PD1), is generated from docosahexaenoic acid by T helper type 2-skewed peripheral blood mononuclear cells in a lipoxygenase-dependent manner. PD1 blocked T cell migration in vivo, inhibited tumor necrosis factor alpha and interferon-gamma secretion, and promoted apoptosis mediated by raft clustering. These results demonstrated novel anti-inflammatory roles for PD1 in regulating events associated with inflammation and resolution.
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Affiliation(s)
- Amiram Ariel
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA
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28
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Moon MK, Kang DG, Lee JK, Kim JS, Lee HS. Vasodilatory and anti-inflammatory effects of the aqueous extract of rhubarb via a NO-cGMP pathway. Life Sci 2005; 78:1550-7. [PMID: 16269157 DOI: 10.1016/j.lfs.2005.07.028] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2005] [Accepted: 07/15/2005] [Indexed: 10/25/2022]
Abstract
While conducting an in vitro screen of various medicinal plant extracts, an aqueous extract of rhubarb (Rheum undulatum L, AR) was found to exhibit a distinct vasorelaxant activity. AR induced a concentration-dependent relaxation of the phenylephrine-precontracted aorta. This effect disappeared with the removal of functional endothelium. Pretreatment of the aortic tissues with N(G)-nitro-L-arginine methyl ester (L-NAME), methylene blue, or 1H-[1,2,4]-oxadiazole-[4,3-alpha]-quinoxalin-1-one (ODQ) inhibited the relaxation induced by AR. Incubation of human umbilical vein endothelial cells (HUVECs) with AR increased the production of cGMP in a dose-dependent manner, but this effect was blocked by pretreatment with L-NAME and ODQ, respectively. AR treatment attenuated TNF-alpha-induced NF-kappaB p65 translocation in HUVECs in a dose-dependent manner. In addition, AR suppressed the expression levels of adhesion molecules including ICAM-1 and VCAM-1 induced by TNF-alpha in HUVECs. TNF-alpha-induced MCP-1 expression was also attenuated by the addition of AR. This attenuation was blocked by pretreatment with either L-NAME or ODQ. AR treatment inhibited cellular adhesion of U937 cells onto HUVECs induced by TNF-alpha. Taken together, the present study suggests that AR dilates vascular smooth muscle and suppresses the vascular inflammatory process via endothelium-dependent NO/cGMP signaling.
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Affiliation(s)
- Mi Kyoung Moon
- Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk, 570-749, Republic of Korea
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Kang DG, Moon MK, Choi DH, Lee JK, Kwon TO, Lee HS. Vasodilatory and anti-inflammatory effects of the 1,2,3,4,6-penta-O-galloyl-beta-D-glucose (PGG) via a nitric oxide-cGMP pathway. Eur J Pharmacol 2005; 524:111-9. [PMID: 16253226 DOI: 10.1016/j.ejphar.2005.08.061] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2005] [Revised: 08/18/2005] [Accepted: 08/29/2005] [Indexed: 10/25/2022]
Abstract
Vasorelaxant and anti-inflammatory effects of a 1,2,3,4,6-penta-O-galloyl-beta-d-glucose (PGG) isolated from the root barks of Paeonia suffruticosa and possible mechanisms responsible were investigated. PGG induced a concentration-dependent relaxation of the phenylephrine-precontracted rat aorta. This effect disappeared with the removal of functional endothelium. Pretreatment of the aortic tissues with either N(G)-nitro-L-arginine methyl ester (L-NAME) or 1H-[1,2,4]-oxadiazole-[4,3-alpha]-quinoxalin-1-one (ODQ) inhibited the relaxation induced by PGG. Incubation of human umbilical vein endothelial cells (HUVECs) or carotid arteries isolated from rats with PGG increased the production of cGMP in a dose-dependent manner, but this effect was blocked by pretreatment with L-NAME and ODQ, respectively. PGG treatment attenuated tumor necrosis factor-alpha (TNF-alpha)-induced nuclear factor-kappaB (NF-kappaB) p65 translocation in human umbilical vein endothelial cells. In addition, PGG suppressed the expression levels of adhesion molecules including intracellular cell adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) induced by TNF-alpha. TNF-alpha-induced monocyte chemoattractant protein-1 (MCP-1) expression was also attenuated by addition of PGG. PGG treatment inhibited cellular adhesion of U937 cells onto human umbilical vein endothelial cells induced by TNF-alpha. Taken together, the present study suggests that PGG dilates vascular smooth muscle and suppresses the vascular inflammatory process via endothelium-dependent nitric oxide (NO)/cGMP signaling.
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Affiliation(s)
- Dae Gill Kang
- Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk, Republic of Korea
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30
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Molecules that target key events in macrophage migration during inflammation. Expert Opin Ther Pat 2005. [DOI: 10.1517/13543776.12.10.1517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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31
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Xia YF, Ye BQ, Li YD, Wang JG, He XJ, Lin X, Yao X, Ma D, Slungaard A, Hebbel RP, Key NS, Geng JG. Andrographolide attenuates inflammation by inhibition of NF-kappa B activation through covalent modification of reduced cysteine 62 of p50. THE JOURNAL OF IMMUNOLOGY 2004; 173:4207-17. [PMID: 15356172 DOI: 10.4049/jimmunol.173.6.4207] [Citation(s) in RCA: 268] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
NF-kappaB is a central transcriptional factor and a pleiotropic regulator of many genes involved in immunological responses. During the screening of a plant extract library of traditional Chinese herbal medicines, we found that NF-kappaB activity was potently inhibited by andrographolide (Andro), an abundant component of the plant Andrographis that has been commonly used as a folk remedy for alleviation of inflammatory disorders in Asia for millennia. Mechanistically, it formed a covalent adduct with reduced cysteine (62) of p50, thus blocking the binding of NF-kappaB oligonucleotide to nuclear proteins. Andro suppressed the activation of NF-kappaB in stimulated endothelial cells, which reduced the expression of cell adhesion molecule E-selectin and prevented E-selectin-mediated leukocyte adhesion under flow. It also abrogated the cytokine- and endotoxin-induced peritoneal deposition of neutrophils, attenuated septic shock, and prevented allergic lung inflammation in vivo. Notably, it had no suppressive effect on IkappaBalpha degradation, p50 and p65 nuclear translocation, or cell growth rates. Our results thus reveal a unique pharmacological mechanism of Andro's protective anti-inflammatory actions.
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MESH Headings
- Active Transport, Cell Nucleus/drug effects
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/isolation & purification
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Binding, Competitive/drug effects
- Cell Adhesion/drug effects
- Cell Line
- Cell Nucleus/drug effects
- Cell Nucleus/metabolism
- Cysteine/metabolism
- Diterpenes/isolation & purification
- Diterpenes/metabolism
- Diterpenes/pharmacology
- Drug Evaluation, Preclinical
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/metabolism
- Drugs, Chinese Herbal/pharmacology
- E-Selectin/biosynthesis
- E-Selectin/metabolism
- Endothelium, Vascular/cytology
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Growth Inhibitors/pharmacology
- HL-60 Cells
- Humans
- Hypersensitivity/pathology
- Hypersensitivity/prevention & control
- I-kappa B Proteins/antagonists & inhibitors
- I-kappa B Proteins/metabolism
- Leukocytes/drug effects
- Leukocytes/metabolism
- Leukocytes/pathology
- Lung/drug effects
- Lung/pathology
- Mice
- Mice, Inbred BALB C
- NF-KappaB Inhibitor alpha
- NF-kappa B/antagonists & inhibitors
- NF-kappa B/genetics
- NF-kappa B/metabolism
- NF-kappa B p50 Subunit
- NIH 3T3 Cells
- Neutrophil Infiltration/drug effects
- Oligonucleotide Probes/antagonists & inhibitors
- Oligonucleotide Probes/metabolism
- Oxidation-Reduction
- Peritonitis/pathology
- Peritonitis/prevention & control
- Protein Binding/drug effects
- Shock, Septic/prevention & control
- Transcription Factor RelA
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Affiliation(s)
- Yi-Feng Xia
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
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32
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Traves SL, Smith SJ, Barnes PJ, Donnelly LE. Specific CXC but not CC chemokines cause elevated monocyte migration in COPD: a role for CXCR2. J Leukoc Biol 2004; 76:441-50. [PMID: 15155777 DOI: 10.1189/jlb.1003495] [Citation(s) in RCA: 116] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Leukocyte migration is critical to maintaining host defense, but uncontrolled cellular infiltration into tissues can lead to chronic inflammation. In the lung, such diseases include chronic obstructive pulmonary disease (COPD), a debilitating, respiratory condition characterized by progressive and largely irreversible airflow limitation for which cigarette smoking is the major risk factor. COPD is associated with an increased inflammatory cell influx including increased macrophage numbers in the airways and tissue. Alveolar macrophages develop from immigrating blood monocytes and have the capacity to cause the pathological changes associated with COPD. This study addressed the hypothesis that increased macrophage numbers in COPD are a result of increased recruitment of monocytes from the circulation. Chemotaxis assays of peripheral blood mononuclear cells (PBMC)/monocytes from nonsmokers, smokers, and COPD patients demonstrated increased chemotactic responses for cells from COPD patients when compared with controls toward growth-related oncogene (GRO)alpha and neutrophil-activating peptide (NAP)-2 but not toward monocyte chemoattractant protein, interleukin-8, or epithelial-derived NAP(ENA)-78. The enhanced chemotactic response toward GROalpha and NAP-2 was not mediated by differences in expression of their cellular receptors, CXCR1 or CXCR2. Receptor expression studies using flow cytometry indicated that in COPD, monocyte expression of CXCR2 is regulated differently from nonsmokers and smokers, which may account for the enhanced migration toward GROalpha and NAP-2. The results highlight the potential of CXCR2 antagonists as therapy for COPD and demonstrate that an enhanced PBMC/monocyte response to specific CXC chemokines in these patients may contribute to increased recruitment and activation of macrophages in the lungs.
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Affiliation(s)
- Suzanne L Traves
- Department of Thoracic Medicine, National Heart and Lung Institute, Imperial College London, Dovehouse Street, London, SW3 6LY, UK
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33
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Feng WG, Wang YB, Zhang JS, Wang XY, Li CL, Chang ZL. cAMP elevators inhibit LPS-induced IL-12 p40 expression by interfering with phosphorylation of p38 MAPK in murine peritoneal macrophages. Cell Res 2002; 12:331-7. [PMID: 12528891 DOI: 10.1038/sj.cr.7290135] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
cAMP mediated signaling may play a suppressive role in immune response. We previously found that the cAMP-elevators (CTx and 8-Br-cAMP) inhibited IL-12, IL-la, IL-6 gene expression, but increased the transcriptional levels of IL-10 and IL-1Ra in LPS-treated murine peritoneal macrophages. The present study examined a possible molecular mechanism involved in cAMP elevators-induced inhibition of IL-12 p40 expression in response to LPS. Our data demonstrated that cAMP elevators downregulated IL-12 p40 mRNA expression and IL-12 p70 production in murine peritoneal macrophages. Subsequent studies revealed that cAMP-elevators blocked phosphorylation of p38 MAPK, but did not affect the activity of NF-kappaB binding to IL-12 promoter (-136/-112). This is the first report that cAMP elevators inhibit LPS-induced IL-12 production by a mechanism that is associated, at least in part, with p38-dependent inhibition by cAMP signaling pathways.
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Affiliation(s)
- Wei Guo Feng
- Laboratory of Immune Signaling Transduction, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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34
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Ma YQ, Geng JG. Obligatory requirement of sulfation for P-selectin binding to human salivary gland carcinoma Acc-M cells and breast carcinoma ZR-75-30 cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2002; 168:1690-6. [PMID: 11823498 DOI: 10.4049/jimmunol.168.4.1690] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Stimulated endothelial cells and activated platelets express P-selectin, which reacts with P-selectin glycoprotein ligand-1 (PSGL-1) for leukocyte rolling on the stimulated endothelial cells and heterotypic aggregation of the activated platelets on leukocytes. P-selectin also binds to several cancer cells in vitro and promotes the growth and metastasis of human colon carcinoma in vivo. The P-selectin/PSGL-1 interaction requires tyrosine sulfation. However, it is unknown whether sulfation is necessary for P-selectin binding to somatic cancer cells. In this study, we show that P-selectin mediated adhesion of Acc-M cells, a cell line derived from a human adenoid cystic carcinoma of salivary gland. These cells had a moderate expression of heparan sulfate-like proteoglycans, but had no detectable expressions of PSGL-1, CD24, Lewis(x), and sialyl Lewis(x). Treatment with sodium chlorate (a sulfation biosynthesis inhibitor), but not 4-methylumbelliferyl-beta-D-xyloside (a proteoglycan biosynthesis inhibitor) or heparinases, reduced adhesion of these cells to P-selectin. Sodium chlorate also inhibited the P-selectin precipitation of the 160-, 54-, and 36-kDa molecules from the cell surface of Acc-M cells. Furthermore, P-selectin could bind to human breast carcinoma ZR-75-30 cells in a sulfation-dependent manner. Our results thus indicate that sulfation is essential for adhesion of nonblood-borne, epithelial-like human cancer cells to P-selectin.
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Affiliation(s)
- Yan-Qing Ma
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
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35
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Xia YF, Liu LP, Zhong CP, Geng JG. NF-kappaB activation for constitutive expression of VCAM-1 and ICAM-1 on B lymphocytes and plasma cells. Biochem Biophys Res Commun 2001; 289:851-6. [PMID: 11735124 DOI: 10.1006/bbrc.2001.6067] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cytokine stimulation can activate NF-kappaB that triggers inducible expression of E-selectin, VCAM-1 (Vascular Cell Adhesion Molecule-1) and ICAM-1 (Intercellular Cell Adhesion Molecule-1) in endothelial cells. In the previous study, we have shown that B lymphocytes and plasma cells can express E-selectin by constitutive activation of NF-kappaB. Here we show that human B lymphocytes and ARH-77 plasma cells expressed VCAM-1 and ICAM-1 in a cytokine dispensable mechanism. NF-kappaB antagonists could inhibit their expressions in ARH-77 cells. The activities of NF-kappaB for VCAM-1 and ICAM-1 promoters prior to cytokine stimulation were detected in ARH-77 cells using electrophoretic mobility shift assays. Again, NF-kappaB antagonists could abrogate these promoter activities. Taken together, our results demonstrate that NF-kappaB activation is the underlying molecular mechanism for constitutive expression of E-selectin, VCAM-1, and ICAM-1 on human B lymphocytes and plasma cells.
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Affiliation(s)
- Y F Xia
- Laboratory of Molecular Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
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36
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Chen M, Geng JG. Inhibition of protein tyrosine phosphatases suppresses P-selectin exocytosis in activated human platelets. Biochem Biophys Res Commun 2001; 286:831-8. [PMID: 11520073 DOI: 10.1006/bbrc.2001.5467] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
P-selectin (CD62P), a cell adhesion molecule for most leukocytes, is stored in the alpha-granules of platelets and the Weibel-Palade bodies of endothelial cells. Upon thrombogenic and inflammatory challenges, P-selectin is rapidly expressed, by exocytosis, on activated platelets and stimulated endothelial cells. However, little is known for the molecular mechanisms governing the regulation of the rapid mobilization of P-selectin in these cells. Here we show that phenylarsine oxide (PAO) and diamide (both were inhibitors for protein tyrosine phosphatases), but not genistein (an inhibitor for protein tyrosine kinases), adenosine, wortmannin and LY294002 (all were inhibitors for phosphatidylinositol 3- and 4-kinases), could inhibit P-selectin exocytosis on activated platelets and could abolish the P-selectin mediated aggregation of activated platelets to neutrophils. However, PAO did not attenuate the P-selectin mediated adhesion of human promyeloid HL-60 cells on the stimulated endothelial cells under flow conditions. Further, PAO had no detectable effects on the exocytosis of P-selectin in the stimulated endothelial cells. These results indicate that protein tyrosine phosphatases are necessary for P-selectin exocytosis on the activated platelets, but not on the stimulated endothelial cells, and suggest that inhibitors for protein tyrosine phosphatases may be potentially valuable for treatment of platelet/leukocyte aggregation.
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Affiliation(s)
- M Chen
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, China
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37
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Chen M, Geng JG. Inhibition of protein tyrosine phosphatases suppresses P-selectin exocytosis in activated human platelets. Biochem Biophys Res Commun 2001; 286:609-15. [PMID: 11511103 DOI: 10.1006/bbrc.2001.5438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
P-selectin (CD62P), a cell adhesion molecule for most leukocytes, is stored in the alpha-granules of platelets and the Weibel-Palade bodies of endothelial cells. Upon thrombogenic and inflammatory challenges, P-selectin is rapidly expressed, by exocytosis, on activated platelets and stimulated endothelial cells. However, little is known with regard to the molecular mechanisms governing the regulation of the rapid mobilization of P-selectin in these cells. Here we show that phenylarsine oxide (PAO) and diamide (both were inhibitors for protein tyrosine phosphatases), but not genistein (an inhibitor for protein tyrosine kinases), adenosine, wortmannin, and LY294002 (all inhibitors for phosphatidylinositol 3- and 4-kinases), could inhibit P-selectin exocytosis on activated platelets and could abolish the P-selectin-mediated aggregation of activated platelets to neutrophils. However, PAO did not attenuate the P-selectin-mediated adhesion of human promyeloid HL-60 cells on the stimulated endothelial cells under flow conditions. Further, PAO had no detectable effects on the exocytosis of P-selectin in the stimulated endothelial cells. These results indicate that protein tyrosine phosphatases are necessary for P-selectin exocytosis on the activated platelets, but not on the stimulated endothelial cells, and suggest that inhibitors for protein tyrosine phosphatases may be potentially valuable for treatment of platelet/leukocyte aggregation.
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Affiliation(s)
- M Chen
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China
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