1
|
Lee JE, Lee AR, Choi EY, Choi IS, Kim SJ. Effect of nitro-conjugated linoleic acid on the inflammatory response of murine macrophages activated with lipopolysaccharide derived from Prevotella intermedia. Inflammopharmacology 2024; 32:561-573. [PMID: 37921960 DOI: 10.1007/s10787-023-01340-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 09/10/2023] [Indexed: 11/05/2023]
Abstract
Nitro-conjugated linoleic acid (NO2-CLA) has been observed to manifest salutary signaling responses, including anti-inflammatory and antioxidant properties. Here, the authors have explored the influence and underlying mechanisms of NO2-CLA on the proinflammatory reaction of murine macrophages that were challenged with lipopolysaccharide (LPS) derived from Prevotella intermedia, a putative periodontopathic bacterium. Treatment of LPS-activated RAW264.7 cells with NO2-CLA notably dampened the secretion of iNOS-derived NO, IL-1β and IL-6 as well as their gene expressions and significantly enhanced the markers for M2 macrophage polarization. NO2-CLA promoted the HO-1 expression in cells challenged with LPS, and tin protoporphyrin IX, an HO-1 inhibitor, significantly reversed the NO2-CLA-mediated attenuation of NO secretion, but not IL-1β or IL-6. We found that cells treated with NO2-CLA significantly increased mRNA expression of PPAR-γ compared to control cells, and NO2-CLA significantly reverted the decrease in PPAR-γ mRNA caused by LPS. Nonetheless, antagonists to PPAR-γ were unable to reverse the NO2-CLA-mediated suppression of inflammatory mediators. In addition, NO2-CLA did not alter the p38 and JNK activation elicited by LPS. Both NF-κB reporter activity and IκB-α degradation caused by LPS were notably diminished by NO2-CLA. NO2-CLA was observed to interrupt the nuclear translocation and DNA binding of p50 subunits caused by LPS with no obvious alterations in p65 subunits. Further, NO2-CLA attenuated the phosphorylation of STAT1/3 elicited in response to LPS. We propose that NO2-CLA could be considered as a possible strategy for the therapy of periodontal disease, although additional researches are certainly required to confirm this.
Collapse
Affiliation(s)
- Jung Eun Lee
- Dental and Life Science Institute, Pusan National University, 49 Busandaehak-Ro, Mulgeum-Eup, Yangsan, Gyeongsangnam-Do 50612, Republic of Korea
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-Daero, 700 Beongil, Sasang-Gu, Busan 46958, Korea
| | - Ah Rim Lee
- Dental and Life Science Institute, Pusan National University, 49 Busandaehak-Ro, Mulgeum-Eup, Yangsan, Gyeongsangnam-Do 50612, Republic of Korea
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-Daero, 700 Beongil, Sasang-Gu, Busan 46958, Korea
| | - Eun-Young Choi
- Department of Biochemistry, School of Medicine, Pusan National University, Yangsan, Gyeongsangnam-Do 50612, Republic of Korea
| | - In Soon Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-Daero, 700 Beongil, Sasang-Gu, Busan 46958, Korea.
| | - Sung-Jo Kim
- Dental and Life Science Institute, Pusan National University, 49 Busandaehak-Ro, Mulgeum-Eup, Yangsan, Gyeongsangnam-Do 50612, Republic of Korea.
- Department of Periodontology, School of Dentistry, Pusan National University, 49 Busandaehak-Ro, Mulgeum-Eup, Yangsan, Gyeongsangnam-Do 50612, Republic of Korea.
| |
Collapse
|
2
|
Zhao Y, Ye Q, Feng Y, Chen Y, Tan L, Ouyang Z, Zhao J, Hu J, Chen N, Su X, Dusenge MA, Feng Y, Guo Y. Prevotella genus and its related NOD-like receptor signaling pathway in young males with stage III periodontitis. Front Microbiol 2022; 13:1049525. [PMID: 36569059 PMCID: PMC9772451 DOI: 10.3389/fmicb.2022.1049525] [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: 09/20/2022] [Accepted: 10/31/2022] [Indexed: 12/14/2022] Open
Abstract
Background As periodontitis progresses, the oral microbiota community changes dynamically. In this study, we evaluated the dominant bacteria and their roles in the potential pathway in young males with stage III periodontitis. Methods 16S rRNA sequencing was performed to evaluate variations in the composition of oral bacteria between males with stage I and III periodontitis and identify the dominant bacteria of each group. Function prediction was obtained based on 16S rRNA sequencing data. The inhibitor of the predominant pathway for stage III periodontitis was used to investigate the role of the dominant bacteria in periodontitis in vivo and in vitro. Results Chao1 index, Observed Species and Phylogenetic Diversity (PD) whole tree values were significantly higher in the stage III periodontitis group. β-diversity suggested that samples could be divided according to the stages of periodontitis. The dominant bacteria in stage III periodontitis were Prevotella, Prevotella_7, and Dialister, whereas that in stage I periodontitis was Cardiobacterium. KEGG analysis predicted that variations in the oral microbiome may be related to the NOD-like receptor signaling pathway. The inhibitor of this pathway, NOD-IN-1, decreased P. intermedia -induced Tnf-α mRNA expression and increased P. intermedia -induced Il-6 mRNA expression, consistent with the ELISA results. Immunohistochemistry confirmed the down-regulation of TNF-α and IL-6 expressions by NOD-IN-1 in P. intermedia-induced periodontitis. Conclusion The composition of the oral bacteria in young males varied according to the stage of periodontitis. The species richness of oral microtia was greater in young males with stage III periodontitis than those with stage I periodontitis. Prevotella was the dominant bacteria in young males with stage III periodontitis, and inhibition of the NOD-like receptor signaling pathway can decrease the periodontal inflammation induced by P. intermedia.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Yue Guo
- *Correspondence: Yunzhi Feng, ; Yue Guo,
| |
Collapse
|
3
|
Nitrooleic acid inhibits macrophage activation induced by lipopolysaccharide from Prevotella intermedia. Nutr Res 2022; 106:35-46. [DOI: 10.1016/j.nutres.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/30/2022] [Accepted: 07/30/2022] [Indexed: 11/22/2022]
|
4
|
Caffeic Acid Phenethyl Ester Attenuates Dextran Sulfate Sodium-Induced Ulcerative Colitis Through Modulation of NF-κB and Cell Adhesion Molecules. Appl Biochem Biotechnol 2022; 194:1091-1104. [PMID: 35040047 DOI: 10.1007/s12010-021-03788-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2021] [Indexed: 12/28/2022]
Abstract
Ulcerative colitis (UC) is a serious health condition and defined as inflammation in the colon. Untreated, UC can develop into colitis-associated cancer (CAC), for which effective medicines are not available. Natural products are a better choice to treat UC by alleviating the inflammation. Caffeic acid phenethyl ester (CAPE) is a phenolic compound and known for its beneficial effects, including antibacterial, anti-inflammatory, anti-diabetic, and anticancer. We aimed to study the effect of CAPE on dextran sulfate sodium (DSS)-induced UC in mouse model. Administration of CAPE to DSS-induced mice protected against colon damage by improving body weight of mice, reducing the weight of spleen, and increased colon length. In addition, administration of CAPE resulted reduced the activity of myeloperoxidase (MPO) and CD68+ positive cells. Furthermore, a significant decrease in the production of key cytokines and the expression of nuclear factor (p65-NF)-κB. Moreover, p65-NF-κB activation was reduced in lipopolysaccharide (LPS)-treated RAW 264.7 macrophage cells from mouse origin. CAPE treatment leads to the reduced expressions of intercellular adhesion molecules (ICAM)-1 and vascular cell adhesion molecules (VCAM), both are key cell adhesion molecules. The results of this study clearly indicate that CAPE can potentially control inflammation in the colon and can be used as a therapy for UC.
Collapse
|
5
|
Lv L, Cui H, Ma Z, Liu X, Yang L. Recent progresses in the pharmacological activities of caffeic acid phenethyl ester. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:1327-1339. [PMID: 33492405 DOI: 10.1007/s00210-021-02054-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 01/14/2021] [Indexed: 12/16/2022]
Abstract
The past decades have seen a growing interest in natural products. Caffeic acid phenethyl ester (CAPE), a flavonoid isolated from honeybee propolis, has shown multiple pharmacological potentials, including anti-cancer, anti-inflammatory, antioxidant, antibacterial, antifungal, and protective effects on nervous systems and multiple organs, since it was found as a potent nuclear factor κB (NF-κB) inhibitor. This review summarizes the advances in these beneficial effects of CAPE, as well as the underlying mechanisms, and proposes that CAPE offers an opportunity for developing therapeutics in multiple diseases. However, clinical trials on CAPE are necessary and encouraged to obtain certain clinically relevant conclusions.
Collapse
Affiliation(s)
- Lili Lv
- Jilin University, Changchun, 130021, China
| | | | - Zhiming Ma
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Xin Liu
- Eye Center, The Second Hospital of Jilin University, Changchun, 130041, China.
| | - Longfei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, 130041, China.
| |
Collapse
|
6
|
Multifaceted effect of caffeic acid against Streptococcus mutans infection: microbicidal and immunomodulatory agent in macrophages. Arch Microbiol 2021; 203:2979-2987. [PMID: 33772326 DOI: 10.1007/s00203-021-02290-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 12/12/2022]
Abstract
The aim of the present study was to investigate the effects of caffeic acid in the interface between the antimicrobial and anti-inflammatory function in macrophage response against S. mutans. S. mutans (108 cfu/mL) were incubated with caffeic acid to determinate the half-maximal inhibitory concentration (IC50) and macrophage cells were incubated with caffeic acid to determinate cell viability and toxicity. Anti-inflammatory effects were measured by nitrite accumulation, TNF-α and PGE2 production, and NF-kB phosphorylation, and S. mutans survival following internalization by macrophages was investigated. We found that caffeic acid presented antimicrobial activity against S. mutans (IC50 = 2.938 ± 0.1225 mM) without exerting cytotoxicity. Caffeic acid inhibited nitrite, TNF-α and PGE2 production by the NF-kB dependent pathway, indicating an immunomodulatory property. Caffeic acid also contributed to macrophage bacteria clearance activity. In summary, caffeic acid presented antimicrobial activity against S. mutans and anti-inflammatory effects in macrophages.
Collapse
|
7
|
Otan Özden F, Lütfioğlu M, Demir E, Bilgici B. Antioxidant effect of caffeic acid phenethyl ester in experimentally induced periodontitis. Clin Oral Investig 2021; 25:4959-4966. [PMID: 33770282 DOI: 10.1007/s00784-021-03805-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/20/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVES The aim of the present study was to evaluate the antioxidant effect of systemically administered caffeic acid phenethyl ester (CAPE) in periodontitis. MATERIALS AND METHODS Forty rats were randomly divided into four groups: control, lipopolysaccharide-induced experimental periodontitis (LPS), CAPE 5: LPS+5 μmol/kg/day CAPE, and CAPE 10: LPS+10 μmol/kg/day CAPE. Following lipopolysaccharide-induced experimental periodontitis, CAPE was administered intraperitoneally for 28 days. Gingival and serumal total antioxidant status (TAS) and total oxidant status (TOS) were analyzed by enzyme-linked immunosorbent assay (ELISA). RESULTS Gingival tissue TAS was significantly higher with CAPE application compared with the LPS group and was highest in the CAPE 10 group (p<0.05). Gingival tissue TOS was highest in the LPS group, and both of the CAPE dosages decreased the gingival tissue TOS, with the highest decrease in the CAPE 10 group (p<0.05). The differences were not significant for serumal TAS or TOS levels (p>0.05). CONCLUSIONS The effect of CAPE on increased TAS and decreased TOS levels in inflamed gingival tissue indicates the antioxidant therapeutic potential of CAPE in periodontitis. CLINICAL RELEVANCE Within the limitations of this study, CAPE may be suggested as an effective host modulator agent for reducing oxidative stress in gingival tissue and might be considered as an adjunctive therapy in periodontitis.
Collapse
Affiliation(s)
- Feyza Otan Özden
- Department of Periodontology, School of Dentistry, Ondokuz Mayıs University, Kurupelit, 55139, Samsun, Turkey.
| | - Müge Lütfioğlu
- Department of Periodontology, School of Dentistry, Ondokuz Mayıs University, Kurupelit, 55139, Samsun, Turkey
| | - Esra Demir
- Department of Periodontology, School of Dentistry, Biruni University, İstanbul, Turkey
| | - Birşen Bilgici
- Department of Biochemistry, School of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| |
Collapse
|
8
|
Choi EY, Keum BR, Choe SH, Hyeon JY, Choi IS, Kim SJ. Tricarbonyldichlororuthenium(II) dimer, the lipid-soluble carbon monoxide-releasing molecule, attenuates Prevotella intermedia lipopolysaccharide-induced production of nitric oxide and interleukin-1β in murine macrophages. Int Immunopharmacol 2020; 90:107190. [PMID: 33223468 DOI: 10.1016/j.intimp.2020.107190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/31/2022]
Abstract
Carbon monoxide (CO) is increasingly being appreciated as an important mediator that has pleiotropic biological properties and appears to have a possible therapeutic application for a variety of disorders. Nevertheless, whether this gaseous molecule may be utilized as a therapeutic intervention for periodontal disease is unclear. Here, we examined the potential beneficial effect of CO-releasing molecule-2 (CORM-2), a tricarbonyldichlororuthenium(II) dimer, against the elaboration of proinflammatory mediators by murine macrophages challenged with lipopolysaccharide (LPS) isolated from Prevotella intermedia, a pathogenic bacterium implicated in inflammatory periodontal disease. We found that NO and IL-1β production, iNOS protein expression and mRNA expressions of iNOS and IL-1β were significantly down-regulated when LPS-challenged RAW264.7 cells were exposed to CORM-2. In addition, HO-1 expression was upregulated by CORM-2 in cells activated with P. intermedia LPS, and the inhibitory influence of CORM-2 upon NO production was attenuated by tin protoporphyrin IX, an inhibitor of HO activity. PPAR-γ did not function in the attenuation of NO and IL-1β by CORM-2. JNK and p38 phosphorylation caused by LPS was not altered by CORM-2. CORM-2 reduced NF-κB reporter activity and IκB-α degradation elicited by P. intermedia LPS. Additionally, CORM-2 inhibited LPS-induced phosphorylation of STAT1/3. In conclusion, CORM-2 suppresses NO and IL-1β production caused by P. intermedia LPS. CORM-2 exerts its effect by a mechanism involving anti-inflammatory HO-1 induction and attenuation of NF-κB and STAT1/3 activation, independently of PPAR-γ as well as JNK and p38. CORM-2 may hold promise as host response modulation agent for periodontal disease, though further research is indicated to verify the therapeutic effect.
Collapse
Affiliation(s)
- Eun-Young Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan 617-736, Republic of Korea
| | - Bo Ram Keum
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan 617-736, Republic of Korea
| | - So-Hui Choe
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan 617-736, Republic of Korea
| | - Jin-Yi Hyeon
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan 617-736, Republic of Korea
| | - In Soon Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan 617-736, Republic of Korea
| | - Sung-Jo Kim
- Department of Periodontology, School of Dentistry, Pusan National University, 49 Busandaehak-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do 626-870, Republic of Korea; Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Gyeongsangnam-do, Republic of Korea; Dental and Life Science Institute, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea.
| |
Collapse
|
9
|
Choe SH, Choi EY, Hyeon JY, Keum BR, Choi IS, Kim SJ. Effect of nifedipine, a calcium channel blocker, on the generation of nitric oxide and interleukin-1β by murine macrophages activated by lipopolysaccharide from Prevotella intermedia. Naunyn Schmiedebergs Arch Pharmacol 2020; 394:59-71. [PMID: 32780228 DOI: 10.1007/s00210-020-01958-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 08/03/2020] [Indexed: 12/12/2022]
Abstract
Nifedipine, a calcium channel blocker, has been reported to possess anti-inflammatory and immunosuppressive effects. The current study was undertaken to explore the influence of nifedipine on the generation of proinflammatory mediators by murine macrophages activated by lipopolysaccharide (LPS) prepared from Prevotella intermedia, a putative periodontal pathogen, and associated mechanisms of action as well. LPS was purified by employing phenol-water extraction protocol. Culture supernatants were analyzed for nitric oxide (NO) and interleukin (IL)-1β. Real-time PCR and immunoblotting were conducted to quantify mRNA and protein expression, respectively. NF-κB-dependent secreted embryonic alkaline phosphatase (SEAP) levels were estimated by reporter assay. Nifedipine markedly suppressed the generation of iNOS-derived NO and IL-1β together with their mRNA expressions in murine macrophages activated by P. intermedia LPS. LPS-stimulated cells exposed to nifedipine notably increased the mRNA levels of Arg-1, Ym-1, FIZZ1, and TGF-β, which are typical markers for M2 macrophage polarization. Nifedipine induced HO-1 at both gene and protein levels in cells challenged with P. intermedia LPS, and the nifedipine-mediated inhibition of NO generation was significantly abrogated by adding SnPP, an HO-1 inhibitor. Nifedipine inhibited LPS-evoked generation of NO and IL-1β in a PPAR-γ-independent manner. In addition, NF-κB activation as well as phosphorylation of STAT1/3 induced by P. intermedia LPS was suppressed by nifedipine. Nifedipine is an inhibitor of P. intermedia LPS-evoked production of NO and IL-1β in murine macrophages and encourages macrophage polarization toward the M2 phenotype. Nifedipine possibly has potential to be used for host modulation of periodontal disease and is worth being further researched.
Collapse
Affiliation(s)
- So-Hui Choe
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - Eun-Young Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - Jin-Yi Hyeon
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - Bo Ram Keum
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - In Soon Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - Sung-Jo Kim
- Department of Periodontology, School of Dentistry, Pusan National University, 49 Busandaehak-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 626-870, Korea. .,Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Gyeongsangnam-do, Korea. .,Dental and Life Science Institute, Pusan National University, Yangsan, Gyeongsangnam-do, Korea.
| |
Collapse
|
10
|
Choe SH, Choi EY, Hyeon JY, Keum BR, Choi IS, Kim SJ. Telmisartan, an angiotensin II receptor blocker, attenuates Prevotella intermedia lipopolysaccharide-induced production of nitric oxide and interleukin-1β in murine macrophages. Int Immunopharmacol 2019; 75:105750. [DOI: 10.1016/j.intimp.2019.105750] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 06/29/2019] [Accepted: 07/08/2019] [Indexed: 01/01/2023]
|
11
|
Caffeic acid phenethyl ester protects against oxidative stress and dampens inflammation via heme oxygenase 1. Int J Oral Sci 2019; 11:6. [PMID: 30783082 PMCID: PMC6381107 DOI: 10.1038/s41368-018-0039-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/18/2018] [Accepted: 07/16/2018] [Indexed: 12/17/2022] Open
Abstract
Periodontal disease is associated with chronic oxidative stress and inflammation. Caffeic acid phenethyl ester (CAPE), which is a potent inducer of heme oxygenase 1 (HO1), is a central active component of propolis, and the application of propolis improves periodontal status in diabetic patients. Here, primary murine macrophages were exposed to CAPE. Target gene expression was assessed by whole-genome microarray, RT-PCR and Western blotting. The antioxidative and anti-inflammatory activities of CAPE were examined by exposure of the cells to hydrogen peroxide, saliva and periodontal pathogens. The involvement of HO1 was investigated with the HO1 inhibitor tin protoporphyrin (SnPP) and knockout mice for Nrf2, which is a transcription factor for detoxifying enzymes. CAPE increased HO1 and other heat shock proteins in murine macrophages. A p38 MAPK inhibitor and Nrf2 knockout attenuated CAPE-induced HO1 expression in macrophages. CAPE exerted strong antioxidative activity. Additionally, CAPE reduced the inflammatory response to saliva and periodontal pathogens. Blocking HO1 decreased the antioxidative activity and attenuated the anti-inflammatory activity of CAPE. In conclusion, CAPE exerted its antioxidative effects through the Nrf2-mediated HO1 pathway and its anti-inflammatory effects through NF-κB inhibition. However, preclinical models evaluating the use of CAPE in periodontal inflammation are necessary in future studies. Propolis, also known as ‘honeybee glue,’ may protect teeth and gums against periodontal disease. In periodontal disease, chronic inflammation and oxidative damage harm gum tissue and lead to tooth loss; propolis has been shown to improve periodontal health for patients with diabetes. Bees make propolis by mixing beeswax, honey, plant resins and their own saliva, and use it to patch honeycomb and prevent growth of microbes in the hive. Reinhard Gruber of the Department of Oral Biology at the Medical University of Vienna and of the Department of Periodontology, University of Bern and co-workers investigated the effects of one of propolis’ active ingredients, caffeic acid phenethyl ester (CAPE), on oxidative stress and inflammation. They found that CAPE reduced oxidative damage and dampened inflammation; further investigation revealed the genetic basis of the beneficial effects, paving the way for future clinical studies. These results may help identify alternative treatments for periodontal disease.
Collapse
|
12
|
Josamycin suppresses Prevotella intermedia lipopolysaccharide-induced production of nitric oxide and interleukin-1β in murine macrophages. Biomed Pharmacother 2018; 105:498-505. [DOI: 10.1016/j.biopha.2018.05.139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 05/27/2018] [Accepted: 05/28/2018] [Indexed: 11/17/2022] Open
|
13
|
Lee JW, Chun W, Kwon OK, Park HA, Lim Y, Lee JH, Kim DY, Kim JH, Lee HK, Ryu HW, Oh SR, Ahn KS. 3,4,5-Trihydroxycinnamic acid attenuates lipopolysaccharide (LPS)-induced acute lung injury via downregulating inflammatory molecules and upregulating HO-1/AMPK activation. Int Immunopharmacol 2018; 64:123-130. [PMID: 30173052 DOI: 10.1016/j.intimp.2018.08.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 07/04/2018] [Accepted: 08/16/2018] [Indexed: 11/29/2022]
Abstract
The increase in inflammatory cytokines and chemokines is a common denominator in the pathogenesis of acute lung injury (ALI) which are involved in the influx of inflammatory cells and lung damage. The aim of the present study was to evaluate the protective effect of 3,4,5-trihydroxycinnamic acid (THC) in lipopolysaccharide (LPS)-induced ALI. THC efficiently decreased the mRNA expression of interleukin-8 (IL-8) in LPS-stimulated A549 airway epithelial cells. THC induced heme oxygenase-1 (HO-1) expression in A549 cells. THC also increased the activation of AMP-activated protein kinase (AMPK) in A549 cells and RAW264.7 macrophages. In LPS-induced ALI in mice, THC significantly suppressed neutrophil influx and monocyte chemoattractant protein-1 (MCP-1) production in the bronchoalveolar lavage fluid (BALF). THC also attenuated the levels of neutrophil elastase (NE), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in the BALF and serum. In addition, THC inhibited the expressions of inducible nitric oxide synthase (iNOS) and the activation of nuclear factor-kappa B (NF-κB) in the lung. These protective effects of THC were accompanied with HO-1 induction and AMPK activation. Taken together, the present study clearly demonstrates that THC significantly attenuates the LPS-induced ALI, suggesting that THC might be a valuable therapeutic adjuvant in airway inflammatory disorders.
Collapse
Affiliation(s)
- Jae-Won Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, Kangwon 200-701, Republic of Korea
| | - Ok-Kyoung Kwon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Hyun Ah Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Yourim Lim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Jae-Hyeon Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Doo-Young Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Jung Hee Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Hyeong-Kyu Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea.
| | - Kyung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Chungju-si, Chungbuk 363-883, Republic of Korea.
| |
Collapse
|
14
|
Khan M, Shunmugavel A, Dhammu TS, Khan H, Singh I, Singh AK. Combined treatment with GSNO and CAPE accelerates functional recovery via additive antioxidant activities in a mouse model of TBI. J Neurosci Res 2018; 96:1900-1913. [PMID: 30027580 DOI: 10.1002/jnr.24279] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 06/01/2018] [Accepted: 06/15/2018] [Indexed: 01/01/2023]
Abstract
Traumatic brain injury (TBI) is the major cause of physical disability and emotional vulnerability. Treatment of TBI is lacking due to its multimechanistic etiology, including derailed mitochondrial and cellular energy metabolism. Previous studies from our laboratory show that an endogenous nitric oxide (NO) metabolite S-nitrosoglutathione (GSNO) provides neuroprotection and improves neurobehavioral function via anti-inflammatory and anti-neurodegenerative mechanisms. To accelerate the rate and enhance the degree of recovery, we investigated combining GSNO with caffeic acid phenethyl ester (CAPE), a potent antioxidant compound, using a male mouse model of TBI, controlled cortical impact in mice. The combination therapy accelerated improvement of cognitive and depressive-like behavior compared with GSNO or CAPE monotherapy. Separately, both GSNO and CAPE improved mitochondrial integrity/function and decreased oxidative damage; however, the combination therapy had greater effects on Drp1 and MnSOD. Additionally, while CAPE alone activated AMPK, this activation was heightened in combination with GSNO. CAPE treatment of normal animals also significantly increased the expression levels of pAMPK, pACC (activation of AMPK substrate ACC), and pLKB1 (activation of upstream to AMPK kinase LKB1), indicating that CAPE activates AMPK via LKB1. These results show that while GSNO and CAPE provide neuroprotection and improve functional recovery separately, the combination treatment invokes greater recovery by significantly improving mitochondrial functions and activating the AMPK enzyme. Both GSNO and CAPE are in human consumption without any known adverse effects; therefore, a combination therapy-based multimechanistic approach is worthy of investigation in human TBI.
Collapse
Affiliation(s)
- Mushfiquddin Khan
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina
| | | | - Tajinder S Dhammu
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina
| | - Hamza Khan
- College of Medicine, University of South Carolina, Columbia, South Carolina
| | - Inderjit Singh
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina.,Ralph H. Johnson VA Medical Center, Charleston, South Carolina
| | - Avtar K Singh
- Ralph H. Johnson VA Medical Center, Charleston, South Carolina.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina
| |
Collapse
|
15
|
Liu GL, Han NZ, Liu SS. Caffeic acid phenethyl ester inhibits the progression of ovarian cancer by regulating NF-κB signaling. Biomed Pharmacother 2018; 99:825-831. [DOI: 10.1016/j.biopha.2018.01.129] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/23/2018] [Accepted: 01/28/2018] [Indexed: 11/24/2022] Open
|
16
|
Chen X, Han Y, Zhang B, Liu Y, Wang S, Liao T, Deng Z, Fan Z, Zhang J, He L, Yue W, Li Y, Pei X. Caffeic acid phenethyl ester promotes haematopoietic stem/progenitor cell homing and engraftment. Stem Cell Res Ther 2017; 8:255. [PMID: 29116023 PMCID: PMC5678809 DOI: 10.1186/s13287-017-0708-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 08/24/2017] [Accepted: 10/23/2017] [Indexed: 11/24/2022] Open
Abstract
Background Several studies have suggested that caffeic acid phenethyl ester (CAPE) can induce the expression of hypoxia inducible factor-1α (HIF-1α) protein. We determined whether CAPE has a novel function in improving the homing and engraftment of haematopoietic stem/progenitor cells (HSPCs) by regulating HIF-1α gene expression in the bone marrow (BM) niche. Methods For survival experiments, lethally irradiated C57BL/6 mice were injected with a low number of BM mononuclear cells (MNCs) and CAPE according to the indicated schedule. Homing efficiency analysis was conducted using flow cytometry and colony-forming unit (CFU) assays. The influence of intraperitoneal injection of CAPE on short-term and long-term engraftment of HSPCs was evaluated using competitive and non-competitive mouse transplantation models. To investigate the mechanism by which CAPE enhanced HSPC homing, we performed these experiments including Q-PCR, western blot, immunohistochemistry and CFU assays after in-vivo HIF-1α activity blockade. Results CAPE injection significantly increased the survival rate of recipient mice after lethal irradiation and transplantation of a low number of BM MNCs. Using HSPC homing assays, we found that CAPE notably increased donor HSPC homing to recipient BM. The subsequent short-term and long-term engraftment of transplanted HSPCs was also improved by the optimal schedule of CAPE administration. Mechanistically, we found that CAPE upregulated the expression of HIF-1α, vascular endothelial growth factor-A (VEGF-A) and stromal cell-derived factor 1α (SDF-1α). The HIF-1α inhibitor PX-478 blocked CAPE-enhanced HSPC homing, which supported the idea that HIF-1α is a key target of CAPE. Conclusions Our results showed that CAPE administration facilitated HSPC homing and engraftment, and this effect was primarily dependent on HIF-1α activation and upregulation of SDF-1α and VEGF-A expression in the BM niche. Electronic supplementary material The online version of this article (doi:10.1186/s13287-017-0708-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Xiaofang Chen
- School of Laboratory Medicine and Biotechnology, Southern Medical University, No. 1838 Guangzhou Avenue North, Baiyun District, Guangzhou, 510515, China.,Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China.,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China
| | - Yi Han
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Bowen Zhang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China.,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China
| | - Yiming Liu
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Sihan Wang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China.,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China
| | - Tuling Liao
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China.,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China
| | - Ziliang Deng
- South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China.,Guangdong Medical University, No. 1 Xincheng Road, Dongguan, 523808, China
| | - Zeng Fan
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China.,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China
| | - Jing Zhang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China.,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China
| | - Lijuan He
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China.,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China
| | - Wen Yue
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China.,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China
| | - Yanhua Li
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China. .,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China.
| | - Xuetao Pei
- School of Laboratory Medicine and Biotechnology, Southern Medical University, No. 1838 Guangzhou Avenue North, Baiyun District, Guangzhou, 510515, China. .,Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, No. 27 Taiping Road, Haidian District, Beijing, 100850, China. .,South China Institute of Biomedicine, No. 1 Luoxuan 4th Road, Haizhu District, Guangzhou, 510005, China.
| |
Collapse
|
17
|
Hyeon JY, Choi EY, Choe SH, Park HR, Choi JI, Choi IS, Kim SJ. Agomelatine, a MT1/MT2 melatonergic receptor agonist with serotonin 5-HT2C receptor antagonistic properties, suppresses Prevotella intermedia lipopolysaccharide-induced production of proinflammatory mediators in murine macrophages. Arch Oral Biol 2017; 82:11-18. [DOI: 10.1016/j.archoralbio.2017.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 04/18/2017] [Accepted: 05/20/2017] [Indexed: 11/28/2022]
|
18
|
Wang W, Sun W, Jin L. Caffeic acid alleviates inflammatory response in rheumatoid arthritis fibroblast-like synoviocytes by inhibiting phosphorylation of IκB kinase α/β and IκBα. Int Immunopharmacol 2017; 48:61-66. [DOI: 10.1016/j.intimp.2017.04.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 04/16/2017] [Accepted: 04/18/2017] [Indexed: 12/12/2022]
|
19
|
Genistein Protects Against Ox-LDL-Induced Inflammation Through MicroRNA-155/SOCS1-Mediated Repression of NF-ĸB Signaling Pathway in HUVECs. Inflammation 2017; 40:1450-1459. [DOI: 10.1007/s10753-017-0588-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
20
|
Mahmoud AM, Abd El-Twab SM. Caffeic acid phenethyl ester protects the brain against hexavalent chromium toxicity by enhancing endogenous antioxidants and modulating the JAK/STAT signaling pathway. Biomed Pharmacother 2017; 91:303-311. [PMID: 28463793 DOI: 10.1016/j.biopha.2017.04.073] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 04/13/2017] [Accepted: 04/17/2017] [Indexed: 12/26/2022] Open
Abstract
Hexavalent chromium [Cr(VI)] is commonly used in industry, and is a proven toxin and carcinogen. However, the information regarding its neurotoxic mechanism is not completely understood. The present study was designed to scrutinize the possible protective effects of caffeic acid phenethyl ester (CAPE), a bioactive phenolic of propolis extract, on Cr(VI)-induced brain injury in rats, with an emphasis on the JAK/STAT signaling pathway. Rats received 2mg/kgK2CrO4 and concurrently treated with 20mg/kg CAPE for 30 days. Cr(VI)-induced rats showed a significant increase in cerebral lipid peroxidation, nitric oxide and pro-inflammatory cytokines, with concomitantly declined antioxidants and acetylcholinesterase. CAPE attenuated oxidative stress and inflammation and enhanced antioxidant defenses in the cerebrum of rats. Cr(VI) significantly up-regulated JAK2, STAT3 and SOCS3, an effect that was reversed by CAPE. In conclusion, CAPE protects the brain against Cr(VI) toxicity through abrogation of oxidative stress, inflammation and down-regulation of JAK2/STAT3 signaling in a SOCS3-independent mechanism.
Collapse
Affiliation(s)
- Ayman M Mahmoud
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Egypt.
| | - Sanaa M Abd El-Twab
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Egypt
| |
Collapse
|
21
|
Yiğit U, Kırzıoğlu FY, Uğuz AC, Nazıroğlu M, Özmen Ö. Is caffeic acid phenethyl ester more protective than doxycycline in experimental periodontitis? Arch Oral Biol 2017; 81:61-68. [PMID: 28482239 DOI: 10.1016/j.archoralbio.2017.04.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 03/09/2017] [Accepted: 04/17/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVES Host modulation therapies (anti-inflammatory drugs, bone-stimulating agents, anti-proteinase etc.) target the inhibition or stabilization of tissue breakdown. The aim of the present study was to evaluate the effects of caffeic acid phenethyl ester (CAPE) and/or low dose doxycycline (LDD) administrations on alveolar bone loss (ABL), serum cytokines and gingival apoptosis, as well as the levels of oxidants and anti-oxidants in rats with ligature-induced periodontitis. MATERIAL AND METHODS The animals were randomly divided into five groups: Group C (periodontally healthy), Group PC (Periodontitis+CAPE), Group PD (Periodontitis+LDD), Group PCD (Periodontitis+CAPE+LDD), Group P (Periodontitis). Experimental periodontitis was induced for 14days. Levels of ABL, and the serum cytokines, interleukin (IL)-1 β, IL-6, tumor necrosis factor-α (TNF-α) and IL-10 were assessed as were the levels of the oxidants and anti-oxidants, malondialdehyde (MDA), glutathione (GSH) and glutathione peroxidase (GSH-Px), and levels of gingival apoptosis. RESULTS The lowest ABL levels was evident in the PC group, among the experimental groups. There was also less inflammatory infiltration in the PC group than the PD group. IL-1β, IL-6, and IL-10 were lower in the PC group and higher in the P group in comparison to the levels in the other experiment groups. TNF-α levels in the PD group were higher than levels in the PC and PCD groups. The PC and PCD groups did not differ from the C group in regard to MDA levels. The highest GSH-Px level was found in the PC group. Gingival apoptosis in the PC group was not only lower than the PD and PCD groups, but also lower than in the C group. CONCLUSION The present study suggests that CAPE has more anti-inflammatory, anti-oxidant and anti-apoptotic effects than LDD, with no additive benefits of a CAPE+LDD combination being evident in rats with periodontitis.
Collapse
Affiliation(s)
- Umut Yiğit
- Uşak University, Faculty of Dentistry, Department of Periodontology, Uşak, Turkey.
| | - Fatma Yeşim Kırzıoğlu
- Süleyman Demirel University, Faculty of Dentistry, Department of Periodontology, Isparta, Turkey
| | - Abdülhadi Cihangir Uğuz
- Süleyman Demirel University, Faculty of Medicine, Department of Biophysics, Isparta, Turkey; Süleyman Demirel University, Neuroscience Research Center, Isparta, Turkey
| | - Mustafa Nazıroğlu
- Süleyman Demirel University, Faculty of Medicine, Department of Biophysics, Isparta, Turkey; Süleyman Demirel University, Neuroscience Research Center, Isparta, Turkey
| | - Özlem Özmen
- Mehmet Akif Ersoy University, Faculty of Veterinary Medicine, Department of Pathology, Burdur, Turkey
| |
Collapse
|
22
|
Li L, Sun W, Wu T, Lu R, Shi B. Caffeic acid phenethyl ester attenuates lipopolysaccharide-stimulated proinflammatory responses in human gingival fibroblasts via NF-κB and PI3K/Akt signaling pathway. Eur J Pharmacol 2016; 794:61-68. [PMID: 27832944 DOI: 10.1016/j.ejphar.2016.11.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 10/20/2022]
Abstract
Periodontal diseases often begin with chronic gingival inflammation, which causes the destruction of periodontal tissues. Inflammatory immune responses from host cells to bacteria, such as Porphyromonas gingivalis (P. gingivalis), cause periodontal degradation. Human gingival fibroblasts (HGFs) are the major cells in periodontal soft tissues. When stimulated by lipopolysaccharide (LPS), HGFs could secrete several pro-inflammatory cytokines and chemokines, such as interleukins (ILs) IL-6, IL-8, inducible nitric oxide synthase (iNOS), and cyclooxygenase 2 (COX-2). Caffeic acid phenethyl ester (CAPE) is the main active component of propolis, which is collected by honeybees from different plants and known for its anti-inflammatory effects. The anti-inflammatory effects of CAPE on the LPS-induced HGFs were demonstrated in this study. HGFs were pretreated with CAPE (10, 20, and 30µm) for 1h, followed by LPS stimulation (1μg/ml) for 24h. Enzyme-linked immunosorbent assay, Western blot analysis, and immunofluorescence staining were used to evaluate the production of IL-6, IL-8, iNOS, and COX-2, as well as the activation of TLR4-mediated NF-κB, PI3K/AKT, and MAPK signaling pathways. The results indicated that CAPE inhibits LPS-induced IL-6, IL-8, iNOS, and COX-2 production in a dose-dependent manner. Moreover, CAPE suppresses LPS-induced TLR4/MyD88 and nuclear factor kappa B (NF-κB) activation. In addition, phosphatidylinositol 3 kinase (PI3K) and protein kinase B (AKT) phosphorylation was inhibited by CAPE. These results demonstrated that CAPE could be effective for treating of periodontal diseases.
Collapse
Affiliation(s)
- Lei Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Wei Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Tao Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Rui Lu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Bin Shi
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.
| |
Collapse
|
23
|
Ma W, Zhang L, Zeng P, Huang C, Li J, Geng B, Yang J, Kong W, Zhou X, Cui Q. An analysis of human microbe-disease associations. Brief Bioinform 2016; 18:85-97. [PMID: 26883326 DOI: 10.1093/bib/bbw005] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/22/2015] [Indexed: 02/07/2023] Open
Abstract
The microbiota living in the human body has critical impacts on our health and disease, but a systems understanding of its relationships with disease remains limited. Here, we use a large-scale text mining-based manually curated microbe-disease association data set to construct a microbe-based human disease network and investigate the relationships between microbes and disease genes, symptoms, chemical fragments and drugs. We reveal that microbe-based disease loops are significantly coherent. Microbe-based disease connections have strong overlaps with those constructed by disease genes, symptoms, chemical fragments and drugs. Moreover, we confirm that the microbe-based disease analysis is able to predict novel connections and mechanisms for disease, microbes, genes and drugs. The presented network, methods and findings can be a resource helpful for addressing some issues in medicine, for example, the discovery of bench knowledge and bedside clinical solutions for disease mechanism understanding, diagnosis and therapy.
Collapse
|