1
|
Bao H, Cong J, Qu Q, He S, Zhao D, Zhao H, Yin S, Ma D. Rosiglitazone alleviates LPS-induced endometritis via suppression of TLR4-mediated NF-κB activation. PLoS One 2024; 19:e0280372. [PMID: 38547218 PMCID: PMC10977739 DOI: 10.1371/journal.pone.0280372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 11/21/2023] [Indexed: 04/02/2024] Open
Abstract
OBJECTIVE The aim of this study was to investigate the anti-inflammatory effect of Rosiglitazone (RGZ) on lipopolysaccharide (LPS) -induced Endometritis and explore its possible mechanism. METHODS The preventive and therapeutic effects of RGZ on Endometritis were studied in vivo and in vitro. A total of 40 female C57BL/6 mice were randomly divided into the following 4 groups: RGZ+LPS, RGZ control, LPS and DMSO control. The mice uterine tissue sections were performed with HE and immunohistochemical staining. Human endometrial stromal cells (HESCs) were cultured, and different concentrations of LPS stimulation groups and RGZ and/or a TLR4 signaling inhibitor TAK-242 pretreatment +LPS groups were established to further elucidate the underlying mechanisms of this protective effect of RGZ. RESULTS The HE results in mice showed that RGZ+LPS group had less tissue loss than LPS group. Immunohistochemical staining (IHC) results showed that the expression of TLR4 after RGZ treatment was significantly lower than that in LPS group. These findings suggested that RGZ effectively improves the pathological changes associated with LPS-induced endometritis by inhibiting TLR4. Reverse transcription-polymerase chain reaction and western blot analysis demonstrated that RGZ pretreatment suppresses the expression of Toll-like receptor 4 (TLR4) and its downstream activation of nuclear factor-κB (NF-κB). In vitro, RGZ inhibited LPS-stimulated expression of proinflammatory cytokines in a dose-dependent manner and also downregulated LPS induced toll-like receptor 4 (TLR4) expression and inhibited phosphorylation of LPS-induced nuclear transcription factor-kappa B (NF-κB) P65 protein. CONCLUSIONS These results suggest that RGZ may inhibit LPS-induced endometritis through the TLR4-mediated NF-κB pathway.
Collapse
Affiliation(s)
- Hongchu Bao
- Reproductive Medicine Centre, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Key Medical and Health Laboratory of Reproductive Health and Genetics (Yantai Yuhuangding Hospital), Yantai, China
| | - Jianxiang Cong
- Reproductive Medicine Centre, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Key Medical and Health Laboratory of Reproductive Health and Genetics (Yantai Yuhuangding Hospital), Yantai, China
| | - Qinglan Qu
- Reproductive Medicine Centre, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Key Medical and Health Laboratory of Reproductive Health and Genetics (Yantai Yuhuangding Hospital), Yantai, China
| | - Shunzhi He
- Reproductive Medicine Centre, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Key Medical and Health Laboratory of Reproductive Health and Genetics (Yantai Yuhuangding Hospital), Yantai, China
| | - Dongmei Zhao
- Reproductive Medicine Centre, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Key Medical and Health Laboratory of Reproductive Health and Genetics (Yantai Yuhuangding Hospital), Yantai, China
| | - Huishan Zhao
- Reproductive Medicine Centre, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Key Medical and Health Laboratory of Reproductive Health and Genetics (Yantai Yuhuangding Hospital), Yantai, China
| | - Shuyuan Yin
- Reproductive Medicine Centre, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Key Medical and Health Laboratory of Reproductive Health and Genetics (Yantai Yuhuangding Hospital), Yantai, China
| | - Ding Ma
- Reproductive Medicine Centre, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Key Medical and Health Laboratory of Reproductive Health and Genetics (Yantai Yuhuangding Hospital), Yantai, China
| |
Collapse
|
2
|
Wątroba M, Szewczyk G, Szukiewicz D. The Role of Sirtuin-1 (SIRT1) in the Physiology and Pathophysiology of the Human Placenta. Int J Mol Sci 2023; 24:16210. [PMID: 38003402 PMCID: PMC10671790 DOI: 10.3390/ijms242216210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/04/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Sirtuins, especially SIRT1, play a significant role in regulating inflammatory response, autophagy, and cell response to oxidative stress. Since their discovery, sirtuins have been regarded as anti-ageing and longevity-promoting enzymes. Sirtuin-regulated processes seem to participate in the most prevalent placental pathologies, such as pre-eclampsia. Furthermore, more and more research studies indicate that SIRT1 may prevent pre-eclampsia development or at least alleviate its manifestations. Having considered this, we reviewed recent studies on the role of sirtuins, especially SIRT1, in processes determining normal or abnormal development and functioning of the placenta.
Collapse
Affiliation(s)
| | | | - Dariusz Szukiewicz
- Department of Biophysics, Physiology & Pathophysiology, Medical University of Warsaw, Chałubinskiego 5, 02-004 Warsaw, Poland; (M.W.); (G.S.)
| |
Collapse
|
3
|
Bo Q, Xie Y, Lin Q, Fu L, Hu C, Zhang Z, Meng Q, Xu F, Wang G, Miao Z, Wang H, Xu D. Docosahexaenoic acid protects against lipopolysaccharide-induced fetal growth restriction via inducing the ubiquitination and degradation of NF-κB p65 in placental trophoblasts. J Nutr Biochem 2023; 118:109359. [PMID: 37085060 DOI: 10.1016/j.jnutbio.2023.109359] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 02/17/2023] [Accepted: 04/14/2023] [Indexed: 04/23/2023]
Abstract
Lipopolysaccharide (LPS) could induce adverse birth outcomes by evoking inflammation. We investigated the effect and mechanism of docosahexaenoic acid (DHA) on LPS-induced placental inflammation and fetal growth restriction (FGR). In vivo, pregnant CD-1 mice were divided into four groups: Ctrl, DHA, LPS and DHA+LPS group. We found that DHA pretreatment reduced the incidence of FGR induced by LPS and activated the expression of peroxisome proliferators-activated receptor gamma (PPARγ) in placental tissue. Moreover, the LPS-induced increase of mRNA levels of Tnf-α, Il-6, Il-1β, Mip-2 and Kc in placental tissue was significantly attenuated by DHA pretreatment. A similar effect of DHA was observed in serum of pregnant mice and amniotic fluid. In contrast, the levels of the IL-10 were significantly increased after DHA pretreatment. In vitro, we clarified that DHA antagonized the activation of the NF-κB signaling pathway induced by LPS, which was dependent on PPARγ. Subsequently, CHX (translation inhibitor) was used to indicated that PPARγ significantly increased the degradation rate of p65, an effect that was inhibited by MG132 (proteasome inhibitor) treatment. Finally, it was confirmed that the activation of PPARγ could significantly promote the ubiquitination and degradation of p65. Our results suggested that DHA alleviated LPS-induced inflammatory responses and FGR by activating PPARγ expression, leading to p65 ubiquitination and degradation.
Collapse
Affiliation(s)
- Qingli Bo
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei 230032, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei 230032, China
| | - Yali Xie
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Qiulin Lin
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Lin Fu
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei 230032, China
| | - Chunqiu Hu
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Zhiqiang Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Qingchong Meng
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Feixiang Xu
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei 230032, China;; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei 230032, China
| | - Guoxiu Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Ziyang Miao
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Hua Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei 230032, China;; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei 230032, China
| | - Dexiang Xu
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei 230032, China;; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei 230032, China.
| |
Collapse
|
4
|
Low 15d-PGJ2 status is associated with oxidative stress in chronic obstructive pulmonary disease patients. Inflamm Res 2023; 72:171-180. [PMID: 36371490 DOI: 10.1007/s00011-022-01637-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/23/2022] [Accepted: 09/01/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Peroxisome proliferator-activated receptor γ (PPARγ) is a ligand-dependent nuclear receptor and highly expressed in human and rodent lungs. 15-Deoxy-delta-12,14-prostaglandin J2 (15d-PGJ2), known for cyclopentenone prostaglandin, is the endogenous ligand of PPARγ. However, the associations among PPARγ, 15d-PGJ2 and chronic obstructive pulmonary disease (COPD) were unclear. METHODS All 130 fasting blood samples and 40 lung specimens were obtained from COPD patients and control subjects. Serum 15d-PGJ2 was detected by ELISA. The expressions of oxidative stress indicators were measured using western blotting and PPARγ nuclei were evaluated with immunohistochemistry in lungs. The associations among serum 15d-PGJ2, pulmonary PPARγ and oxidative stress indicators, and COPD were estimated. RESULTS Serum 15d-PGJ2 was reduced in COPD patients compared with healthy volunteers. Linear and logistic regression analysis indicated that serum 15d-PGJ2 was positively associated with pulmonary function in COPD patients. In addition, PPARγ-positive nuclei were reduced and oxidative stress indicators, included HO-1 and NOX-4, were increased in lungs of COPD patients. Further correlative analysis suggested that pulmonary function parameters was positively correlated with serum 15d-PGJ2 and pulmonary PPARγ-positive nuclei, inversely related to oxidative stress indicators in lungs of COPD patients. Pretreatment with 15d-PGJ2 obviously attenuated TNFα-induced oxidative stress in BEAS-2B cells. CONCLUSIONS Serum 15d-PGJ2 and pulmonary PPARγ are reduced, and oxidative stress is elevated in COPD patients. Serum 15d-PGJ2 is inversely associated with oxidative stress in COPD patients.
Collapse
|
5
|
Oxidative and Inflammatory Imbalance in Placenta and Kidney of sFlt1-Induced Early-Onset Preeclampsia Rat Model. Antioxidants (Basel) 2022; 11:antiox11081608. [PMID: 36009326 PMCID: PMC9405374 DOI: 10.3390/antiox11081608] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 12/13/2022] Open
Abstract
Preeclampsia (PE) is a pregnancy-specific disorder characterized by the new onset of hypertension plus proteinuria and/or end-organ dysfunction. Here, we investigate the role of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase system as a major component of reactive oxygen species generation, in a rodent model of early-onset preeclampsia induced by excess sFlt1 (soluble fms-like tyrosine kinase 1). Placenta and kidney samples were obtained from normal pregnant and PE rats to measure the sFlt1/PlGF (placental growth factor) ratio in addition to oxidative stress-related parameters, including the activities and expressions of NADPH oxidase isoforms (NOX1, NOX2, and NOX4), components of nitric oxide (NO) metabolism, and antioxidant enzymes. Peroxisome proliferator-activated receptors (PPARα, PPARγ) and cytokines IL1β, IL3, IL6, IL10, and IL18 were also measured to evaluate the inflammation status in our experimental setting. Excessive O2●− production was found in rats that were treated with sFlt1; interestingly, this alteration appears to be mediated mainly by NOX2 in the placenta and by NOX4 in the kidney. Altered NO metabolism and antioxidant defense systems, together with mitochondrial dysfunction, were observed in this model of PE. Preeclamptic animals also exhibited overexpression of proinflammatory biomarkers as well as increased collagen deposition. Our results highlight the role of NADPH oxidase in mediating oxidative stress and possibly inflammatory processes in the placenta and kidney of an sFlt1-based model of early-onset preeclampsia.
Collapse
|
6
|
Lin CH, Chang HH, Lai CR, Wang HH, Tsai WC, Tsai YL, Changchien CY, Cheng YC, Wu ST, Chen Y. Fatty Acid Binding Protein 6 Inhibition Decreases Cell Cycle Progression, Migration and Autophagy in Bladder Cancers. Int J Mol Sci 2022; 23:ijms23042154. [PMID: 35216267 PMCID: PMC8878685 DOI: 10.3390/ijms23042154] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/14/2022] [Accepted: 02/14/2022] [Indexed: 02/04/2023] Open
Abstract
Bladder cancer (BC) has a high recurrence rate worldwide. The aim of this study was to evaluate the role of fatty acid binding protein 6 (FABP6) in proliferation and migration in human bladder cancer cells. Cell growth was confirmed by MTT and colony formation assay. Western blotting was used to explore protein expressions. Wound healing and Transwell assays were performed to evaluate the migration ability. A xenograft animal model with subcutaneous implantation of BC cells was generated to confirm the tumor progression. Knockdown of FABP6 reduced cell growth in low-grade TSGH-8301 and high-grade T24 cells. Cell cycle blockade was observed with the decrease of CDK2, CDK4, and Ki67 levels in FABP6-knockdown BC cells. Interestingly, knockdown of FBAP6 led to downregulation of autophagic markers and activation of AKT-mTOR signaling. The application of PI3K/AKT inhibitor decreased cell viability mediated by FABP6-knockdown additionally. Moreover, FABP6-knockdown reduced peroxisome proliferator-activated receptor γ and retinoid X receptor α levels but increased p-p65 expression. Knockdown of FABP6 also inhibited BC cell motility with focal adhesive complex reduction. Finally, shFABP6 combined with cisplatin suppressed tumor growth in vivo. These results provide evidence that FABP6 may be a potential target in BC cells progression.
Collapse
Affiliation(s)
- Chieh-Hsin Lin
- National Defense Medical Center, Department of Biology and Anatomy, Taipei 11490, Taiwan; (C.-H.L.); (H.-H.C.); (C.-R.L.); (C.-Y.C.); (Y.-C.C.)
| | - Hsin-Han Chang
- National Defense Medical Center, Department of Biology and Anatomy, Taipei 11490, Taiwan; (C.-H.L.); (H.-H.C.); (C.-R.L.); (C.-Y.C.); (Y.-C.C.)
| | - Chien-Rui Lai
- National Defense Medical Center, Department of Biology and Anatomy, Taipei 11490, Taiwan; (C.-H.L.); (H.-H.C.); (C.-R.L.); (C.-Y.C.); (Y.-C.C.)
| | - Hisao-Hsien Wang
- Department of Urology, Cheng Hsin General Hospital, Taipei 11490, Taiwan;
| | - Wen-Chiuan Tsai
- National Defense Medical Center, Department of Pathology, Tri-Service General Hospital, Taipei 11490, Taiwan; (W.-C.T.); (Y.-L.T.)
| | - Yu-Ling Tsai
- National Defense Medical Center, Department of Pathology, Tri-Service General Hospital, Taipei 11490, Taiwan; (W.-C.T.); (Y.-L.T.)
| | - Chih-Ying Changchien
- National Defense Medical Center, Department of Biology and Anatomy, Taipei 11490, Taiwan; (C.-H.L.); (H.-H.C.); (C.-R.L.); (C.-Y.C.); (Y.-C.C.)
- National Defense Medical Center, Department of Internal Medicine, Tri-Service General Hospital, Taipei 11490, Taiwan
| | - Yu-Chen Cheng
- National Defense Medical Center, Department of Biology and Anatomy, Taipei 11490, Taiwan; (C.-H.L.); (H.-H.C.); (C.-R.L.); (C.-Y.C.); (Y.-C.C.)
| | - Sheng-Tang Wu
- National Defense Medical Center, Division of Urology, Department of Surgery, Tri-Service General Hospital, Taipei 11490, Taiwan
- Correspondence: (S.-T.W.); (Y.C.); Tel.: +886-2-8792-3100 (ext. 18739) (Y.C.)
| | - Ying Chen
- National Defense Medical Center, Department of Biology and Anatomy, Taipei 11490, Taiwan; (C.-H.L.); (H.-H.C.); (C.-R.L.); (C.-Y.C.); (Y.-C.C.)
- Correspondence: (S.-T.W.); (Y.C.); Tel.: +886-2-8792-3100 (ext. 18739) (Y.C.)
| |
Collapse
|
7
|
Jing X, Min C, Qi Yun L, Shun Qin H, Li Rui L, Jia L, Run Mei M. Toll-like receptor 2/4 inhibitors can reduce preterm birth in mice. J Int Med Res 2021; 48:300060520933795. [PMID: 33100071 PMCID: PMC7604950 DOI: 10.1177/0300060520933795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objectives Preterm birth (PTB) occurs in 5% to 18% of newborns. However, the underlying inflammatory mechanisms have not been elucidated. Methods We established a mouse model of infection-associated PTB. Physical signs in pregnant mice with or without lipopolysaccharide (LPS) treatment were observed, and the frequencies of Toll-like receptor (TLR)2- and TLR4-positive CD11b+ cells were analyzed. Cytokine levels in plasma and pathological changes were assessed following LPS treatment. A rescue experiment was used to probe potential immunologic mechanisms underlying PTB. Results Lymphocyte infiltration could be observed in the placentas of mice following intrauterine injection with LPS. The percentage of inflammatory cells decreased 12 hours after treatment. Moreover, TLR2 and TLR4 expression in peripheral blood cells was significantly increased 4 hours after intraperitoneal injection of LPS. Peak TLR2 and TLR4 expression in peripheral blood cells occurred 8 hours post-treatment. TLR4 and TLR-2/4 inhibitors reduced levels of interleukin-10, interferon-γ, and tumor necrosis factor-α in peripheral blood and delayed PTB. Conclusions TLR2 and TLR4 inhibition could play important roles in PTB.
Collapse
Affiliation(s)
- Xu Jing
- First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Chen Min
- Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Liu Qi Yun
- First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Hu Shun Qin
- First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Li Li Rui
- First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Li Jia
- First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ma Run Mei
- First Affiliated Hospital of Kunming Medical University, Kunming, China
| |
Collapse
|
8
|
Fu L, Fei J, Tan ZX, Chen YH, Hu B, Xiang HX, Zhao H, Xu DX. Low Vitamin D Status Is Associated with Inflammation in Patients with Chronic Obstructive Pulmonary Disease. THE JOURNAL OF IMMUNOLOGY 2020; 206:515-523. [PMID: 33361208 DOI: 10.4049/jimmunol.2000964] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 11/11/2020] [Indexed: 02/06/2023]
Abstract
Vitamin D deficiency is associated with increased risks of chronic obstructive pulmonary disease (COPD). Nevertheless, the mechanisms remain unknown. This study analyzed the correlations between vitamin D levels and inflammation in COPD patients. One hundred and one patients with COPD and 202 control subjects were enrolled. Serum 25(OH)D level and inflammatory cytokines were detected. Serum 25(OH)D was decreased and inflammatory cytokines were increased in COPD patients. According to forced expiratory volume in 1 s, COPD patients were divided into three grades. Furthermore, serum 25(OH)D was gradually decreased in COPD patients ranging from grade 1-2 to 4. Serum 25(OH)D was inversely associated with inflammatory cytokines in COPD patients. Further analysis found that NF-κB and AP-1 signaling were activated in COPD patients. Besides, inflammatory signaling was gradually increased in parallel with the severity of COPD. By contrast, pulmonary nuclear vitamin D receptor was decreased in COPD patients. In vitro experiments showed that 1,25(OH)2D3 inhibited LPS-activated inflammatory signaling in A549 cells (human lung adenocarcinoma cell). Mechanically, 1,25(OH)2D3 reinforced physical interactions between vitamin D receptor with NF-κB p65 and c-Jun. Our results indicate that vitamin D is inversely correlated with inflammatory signaling in COPD patients. Inflammation may be a vital mediator of COPD progress in patients with low vitamin D levels.
Collapse
Affiliation(s)
- Lin Fu
- The Second Affiliated Hospital, Anhui Medical University, Hefei 230032, China.,Department of Toxicology, Anhui Medical University, Hefei 230032, China; and
| | - Jun Fei
- The Second Affiliated Hospital, Anhui Medical University, Hefei 230032, China
| | - Zhu-Xia Tan
- The Second Affiliated Hospital, Anhui Medical University, Hefei 230032, China
| | - Yuan-Hua Chen
- Department of Toxicology, Anhui Medical University, Hefei 230032, China; and.,Department of Histology and Embryology, Anhui Medical University, Hefei 230032, China
| | - Biao Hu
- The Second Affiliated Hospital, Anhui Medical University, Hefei 230032, China
| | - Hui-Xiang Xiang
- The Second Affiliated Hospital, Anhui Medical University, Hefei 230032, China
| | - Hui Zhao
- The Second Affiliated Hospital, Anhui Medical University, Hefei 230032, China;
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei 230032, China; and
| |
Collapse
|
9
|
Palomba S, Piltonen TT, Giudice LC. Endometrial function in women with polycystic ovary syndrome: a comprehensive review. Hum Reprod Update 2020; 27:584-618. [PMID: 33302299 DOI: 10.1093/humupd/dmaa051] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/29/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is the most common cause of anovulatory infertility. An endometrial component has been suggested to contribute to subfertility and poor reproductive outcomes in affected women. OBJECTIVE AND RATIONALE The aim of this review was to determine whether there is sufficient evidence to support that endometrial function is altered in women with PCOS, whether clinical features of PCOS affect the endometrium, and whether there are evidence-based interventions to improve endometrial dysfunction in PCOS women. SEARCH METHODS An extensive literature search was performed from 1970 up to July 2020 using PubMed and Web of Science without language restriction. The search included all titles and abstracts assessing a relationship between PCOS and endometrial function, the role played by clinical and biochemical/hormonal factors related to PCOS and endometrial function, and the potential interventions aimed to improve endometrial function in women with PCOS. All published papers were included if considered relevant. Studies having a specific topic/hypothesis regarding endometrial cancer/hyperplasia in women with PCOS were excluded from the analysis. OUTCOMES Experimental and clinical data suggest that the endometrium differs in women with PCOS when compared to healthy controls. Clinical characteristics related to the syndrome, alone and/or in combination, may contribute to dysregulation of endometrial expression of sex hormone receptors and co-receptors, increase endometrial insulin-resistance with impaired glucose transport and utilization, and result in chronic low-grade inflammation, immune dysfunction, altered uterine vascularity, abnormal endometrial gene expression and cellular abnormalities in women with PCOS. Among several interventions to improve endometrial function in women with PCOS, to date, only lifestyle modification, metformin and bariatric surgery have the highest scientific evidence for clinical benefit. WIDER IMPLICATIONS Endometrial dysfunction and abnormal trophoblast invasion and placentation in PCOS women can predispose to miscarriage and pregnancy complications. Thus, patients and their health care providers should advise about these risks. Although currently no intervention can be universally recommended to reverse endometrial dysfunction in PCOS women, lifestyle modifications and metformin may improve underlying endometrial dysfunction and pregnancy outcomes in obese and/or insulin resistant patients. Bariatric surgery has shown its efficacy in severely obese PCOS patients, but a careful evaluation of the benefit/risk ratio is warranted. Large scale randomized controlled clinical trials should address these possibilities.
Collapse
Affiliation(s)
- Stefano Palomba
- Unit of Obstetrics and Gynecology, Grande Ospedale Metropolitano of Reggio Calabria, Reggio Calabria, Italy
| | - Terhi T Piltonen
- Department of Obstetrics and Gynecology, PEDEGO Research Unit, Medical Research Center, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Linda C Giudice
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA, USA
| |
Collapse
|
10
|
Fu L, Bo QL, Gan Y, Chen YH, Zhao H, Tao FB, Xu DX. Association among placental 11β-HSD2, PPAR-γ, and NF-κB p65 in small-for-gestational-age infants: A nested case-control study. Am J Reprod Immunol 2020; 83:e13231. [PMID: 32187412 DOI: 10.1111/aji.13231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/21/2020] [Accepted: 03/06/2020] [Indexed: 12/30/2022] Open
Abstract
PROBLEM 11β-Hydroxysteroid dehydrogenase 2 (11β-HSD2) catalyzes active glucocorticoids into their inactive products, preventing the passage of glucocorticoids into the fetus from maternal circulation. Peroxisome proliferator-activated receptor (PPAR)γ is a member of the nuclear receptor superfamily that regulates the expression of placental 11β-HSD2. Nuclear factor-kappa B (NF-κB) is a transcription factor that regulates inflammatory signaling. This study aimed to investigate the association among 11β-HSD2, PPAR-γ, and NF-κB p65 in small-for-gestational-age (SGA) infants. METHOD OF STUDY Forty-six SGA and 46 appropriate-for-gestational-age (AGA) infants were enrolled in this study. Both newborns and placentas were weighed. Placental 11β-HSD2 levels were measured using Western blotting. Placental PPAR-γ and NF-κB p65 were detected by immunohistochemistry. Placental inflammatory cytokines were evaluated by real-time RT-PCR. RESULTS 11β-HSD2 levels were lower in SGA placentas than those in AGA placentas. Placental PPAR-γ-positive nuclei were less in SGA than those in AGA. By contrast, placental NF-κB p65-positive nuclei were more in SGA than those in AGA. The levels of CRP, TNF-α, IL-8, and IL-1β, several inflammatory cytokines, were higher in SGA placentas. Correlation analysis showed that neonatal weight was positively associated with PPAR-γ and 11β-HSD2 in SGA placentas. By contrast, neonatal weight was inversely correlated with NF-κB p65 in SGA placentas. 11β-HSD2 was positively correlated with PPAR-γ in SGA placentas. CONCLUSIONS Inflammation-associated downregulation of placental PPAR-γ and 11β-HSD2 may be involved in SGA.
Collapse
Affiliation(s)
- Lin Fu
- Second Affiliated Hospital, Anhui Medical University, Hefei, China.,Department of Toxicology, Anhui Medical University, Hefei, China
| | - Qing-Li Bo
- Department of Toxicology, Anhui Medical University, Hefei, China
| | - Yu Gan
- Department of Toxicology, Anhui Medical University, Hefei, China
| | - Yuan-Hua Chen
- Department of Toxicology, Anhui Medical University, Hefei, China
| | - Hui Zhao
- Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Fang-Biao Tao
- Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei, China
| |
Collapse
|
11
|
Zhang C, Gan Y, Lv JW, Qin MQ, Hu WR, Liu ZB, Ma L, Song BD, Li J, Jiang WY, Wang JQ, Wang H, Xu DX. The protective effect of obeticholic acid on lipopolysaccharide-induced disorder of maternal bile acid metabolism in pregnant mice. Int Immunopharmacol 2020; 83:106442. [PMID: 32248018 DOI: 10.1016/j.intimp.2020.106442] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/13/2020] [Accepted: 03/23/2020] [Indexed: 12/16/2022]
Abstract
The disorder of bile acid metabolism is a common feature during pregnancy, which leads to adverse birth outcomes and maternal damage effects. However, the cause and therapy about the disorder of bile acid metabolism are still poor. Microbial infection often occurs in pregnant women, which can induce the disorder of bile acid metabolism in adult mice. Here, this study observed the acute effect of lipopolysaccharide (LPS) on maternal bile acid of pregnant mice at gestational day 17 and the protective effect of obeticholic acid (OCA) pretreatment, a potent agonist of bile acid receptor farnesoid X receptor (FXR). The results showed LPS significantly increased the level of maternal serum and disordered bile acids components of maternal serum and liver, which were ameliorated by OCA pretreatment with obviously reducing the contents of CA, TCA, DCA, TCDCA, CDCA, GCA and TDCA in maternal serum and DCA, TCA, TDCA, TUDCA, CDCA and TCDCA in maternal liver. Furthermore, we investigated the effects of OCA on LPS-disrupted bile acid metabolism in maternal liver. LPS disrupted maternal bile acid profile by decreasing transport and metabolism with hepatic tight junctions of bile acid in pregnant mice. OCA obviously increased the protein level of nuclear FXR and regulated its target genes involving in the metabolism of bile acid, which was characterized by the lower expression of bile acid synthase CYP7A1, the higher expression of CYP3A and the higher mRNA level of transporter Mdr1a/b. This study provided the evidences that LPS disrupted bile acid metabolism in the late stage of pregnant mice and OCA pretreatment played the protective role on it by activating FXR.
Collapse
Affiliation(s)
- Cheng Zhang
- Department of Toxicology, Anhui Medical University, Hefei 230032, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Hefei 230032, Anhui, China
| | - Yu Gan
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Jin-Wei Lv
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Ming-Qiang Qin
- The Fourth Affiliated Hospital, Anhui Medical University, Hefei 230022, China
| | - Wei-Rong Hu
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Zhi-Bing Liu
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Li Ma
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Bing-Dong Song
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Jian Li
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Wei-Ying Jiang
- The Fourth Affiliated Hospital, Anhui Medical University, Hefei 230022, China
| | - Jian-Qing Wang
- MOE Key Laboratory of Population Health Across Life Cycle, Hefei 230032, Anhui, China; The Fourth Affiliated Hospital, Anhui Medical University, Hefei 230022, China
| | - Hua Wang
- Department of Toxicology, Anhui Medical University, Hefei 230032, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Hefei 230032, Anhui, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei 230032, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Hefei 230032, Anhui, China.
| |
Collapse
|
12
|
Fu L, Chen YH, Bo QL, Song YP, Ma L, Wang B, Xu S, Zhang C, Wang H, Xu DX. Lipopolysaccharide Downregulates 11β-Hydroxysteroid Dehydrogenase 2 Expression through Inhibiting Peroxisome Proliferator–Activated Receptor-γ in Placental Trophoblasts. THE JOURNAL OF IMMUNOLOGY 2019; 203:1198-1207. [DOI: 10.4049/jimmunol.1900132] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 06/24/2019] [Indexed: 12/17/2022]
|
13
|
Weng QF, Chen GB, Xu MG, Long RT, Wang H, Wang XY, Jiang CN, Yi XN. Upregulation of PPAR-gamma activity inhibits cyclooxygenase 2 expression in cortical neurons with N-methyl-d-aspartic acid induced excitatory neurotoxicity. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1634488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Qi-Fang Weng
- Department of Physiology, School of Basic Medicine and Life Science, Hainan Medical University, Hainan, PR China
| | - Guo-Bin Chen
- Department of Physiology, School of Basic Medicine and Life Science, Hainan Medical University, Hainan, PR China
| | - Min-Guang Xu
- Department of Physiology, School of Basic Medicine and Life Science, Hainan Medical University, Hainan, PR China
| | - Ru-Tao Long
- Department of Physiology, School of Basic Medicine and Life Science, Hainan Medical University, Hainan, PR China
| | - Han Wang
- Department of Physiology, School of Basic Medicine and Life Science, Hainan Medical University, Hainan, PR China
| | - Xiao-Ying Wang
- Department of Physiology, School of Basic Medicine and Life Science, Hainan Medical University, Hainan, PR China
| | - Chao-Na Jiang
- Department of Physiology, School of Basic Medicine and Life Science, Hainan Medical University, Hainan, PR China
| | - Xi-Nan Yi
- Department of Human Anatomy, School of Basic Medicine and Life Science, Hainan Medical University, Hainan, PR China
| |
Collapse
|
14
|
Rosiglitazone blocks first trimester in-vitro placental injury caused by NF-κB-mediated inflammation. Sci Rep 2019; 9:2018. [PMID: 30765769 PMCID: PMC6376060 DOI: 10.1038/s41598-018-38336-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 12/19/2018] [Indexed: 12/22/2022] Open
Abstract
Increased inflammation and abnormal placentation are common features of a wide spectrum of pregnancy-related disorders such as intra uterine growth restriction, preeclampsia and preterm birth. The inflammatory response of the human placenta has been mostly investigated in relation to cytokine release, but the direct molecular consequences on trophoblast differentiation have not been investigated. This study measured the general effects of LPS on both extravillous and villous trophoblast physiology, and the involvement of the transcription factors PPARγ and NF-κB, specifically using 1st trimester explants and HTR-8/ SVneo cell line models. While both proteins are known for their roles in inflammatory pathways, PPARγ has been identified as an important molecule in trophoblast differentiation, suggesting its potential role in mediating a crosstalk between inflammation and trophoblast differentiation. Here, LPS (1 µg/ml) exposure of first trimester placental villous explants resulted in secretion of inflammatory cytokines, induction of apoptosis and reduction in trophoblast cell proliferation. Additionally, LPS significantly reduced expression of the trophoblast differentiation proteins GCM1 and β-hCG, and increased invasion of the extravillous trophoblast. Activation of PPARγ by Rosiglitazone (10 µM) reversed the LPS-mediated effects on inflammatory cytokine release, trophoblast apoptosis and proliferation compared to controls. Lastly, markers of trophoblast differentiation and invasion reverted to control levels upon activation of PPARγ and concomitant inhibition of NF-κB (either by Rosiglitazone or NF-κB specific inhibitor), revealing a new role for NF-κB in trophoblast invasion. This study reveals a novel PPARγ - NF-κB axis that coordinates inflammatory and differentiation pathways in the human placenta. The ability to reverse trophoblast-associated inflammation with Rosiglitazone offers promise that the PPARγ - NF-κB pathway could one day provide a therapeutic target for placental dysfunction associated with both inflammation and abnormal trophoblast differentiation.
Collapse
|
15
|
Huang J, Su M, Lee BK, Kim MJ, Jung JH, Im DS. Suppressive Effect of 4-Hydroxy-2-(4-Hydroxyphenethyl) Isoindoline-1,3-Dione on Ovalbumin-Induced Allergic Asthma. Biomol Ther (Seoul) 2018; 26:539-545. [PMID: 29665659 PMCID: PMC6254637 DOI: 10.4062/biomolther.2018.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/14/2018] [Accepted: 02/20/2018] [Indexed: 12/14/2022] Open
Abstract
4-Hydroxy-2-(4-hydroxyphenethyl)isoindoline-1,3-dione (PD1) is a synthetic phthalimide derivative of a marine compound. PD1 has peroxisome proliferator-activated receptor (PPAR) γ agonistic and anti-inflammatory effects. This study aimed to investigate the effect of PD1 on allergic asthma using rat basophilic leukemia (RBL)-2H3 mast cells and an ovalbumin (OVA)-induced asthma mouse model. In vitro, PD1 suppressed β-hexosaminidase activity in RBL-2H3 cells. In the OVA-induced allergic asthma mouse model, increased inflammatory cells and elevated Th2 and Th1 cytokine levels were observed in bronchoalveolar lavage fluid (BALF) and lung tissue. PD1 administration decreased the numbers of inflammatory cells, especially eosinophils, and reduced the mRNA and protein levels of the Th2 cytokines including interleukin (IL)-4 and IL-13, in BALF and lung tissue. The severity of inflammation and mucin secretion in the lungs of PD1-treated mice was also less. These findings indicate that PD1 could be a potential compound for anti-allergic therapy.
Collapse
Affiliation(s)
- Jin Huang
- Molecular Inflammation Research Center for Aging Intervention (MRCA) and College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Mingzhi Su
- Molecular Inflammation Research Center for Aging Intervention (MRCA) and College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Bo-Kyung Lee
- Molecular Inflammation Research Center for Aging Intervention (MRCA) and College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Mee-Jeong Kim
- Molecular Inflammation Research Center for Aging Intervention (MRCA) and College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Jee H Jung
- Molecular Inflammation Research Center for Aging Intervention (MRCA) and College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Dong-Soon Im
- Molecular Inflammation Research Center for Aging Intervention (MRCA) and College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| |
Collapse
|
16
|
Abdellatif KRA, Fadaly WAA, Kamel GM, Elshaier YAMM, El-Magd MA. Design, synthesis, modeling studies and biological evaluation of thiazolidine derivatives containing pyrazole core as potential anti-diabetic PPAR-γ agonists and anti-inflammatory COX-2 selective inhibitors. Bioorg Chem 2018; 82:86-99. [PMID: 30278282 DOI: 10.1016/j.bioorg.2018.09.034] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/22/2018] [Accepted: 09/24/2018] [Indexed: 11/16/2022]
Abstract
Nowadays, diabetes and its associated inflammatory complications are important public health problems worldwide. Market limitations of drugs with dual actions as anti-inflammatory (AI) and anti-diabetic have been led to a temptation for focusing on the discovery and development of new compounds with potential AI and anti-diabetic activities. Herein, we synthesized two new series containing pyrazole ring with vicinal diaryl rings as selective COX-2 moiety and thiazolidindione (series 12a-f) or thiazolidinone (series 13a-f) as anti-diabetic moiety and the two moieties were linked together with methylene or methylenehydrazone functionality. The two series were evaluated for their COX inhibition, AI activity and ulcerogenic liability and for the anti-diabetic activity; 12a-f and 13a-f were assessed in vitro against α-glucosidase, β- glucosidase, in vivo hypoglycemic activity (one day and 15 days studies) in addition to PPARγ activation study. Four compounds (12c, 12f, 13b and 13f) had higher COX-2 S.I. (8.69-9.26) than the COX-2 selective drug celecoxib (COX-2 S.I. = 8.60) and showed the highest AI activities and the lowest ulcerogenicity than other derivatives. Also, two thiazolidindione derivatives 12e and 12f and two thiazolidinone derivatives 13b and 13c showed higher inhibitory activities against α- and β-glucosidase (% inhibitory activity = 62.15, 55.30, 65.37, 59.08 for α-glucosidase and 57.42, 60.07, 58.19, 66.90 for β-glucosidase respectively) than reference compounds (acarbose with % inhibitory activity = 49.50 for α-glucosidase and d-saccharic acid 1,4-lactone monohydrate with % inhibitory activity = 53.42 for β-glucosidase) and also showed good PPAR-γ activation and good hypoglycemic effect in comparison to pioglitazone and rosiglitazone. Moreover, Shape comparison and docking studies were carried out to understand their interaction and similarity with standard drugs.
Collapse
Affiliation(s)
- Khaled R A Abdellatif
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt; Pharmaceutical Sciences Department, Ibn Sina National College for Medical Studies, Jeddah 21418, Saudi Arabia.
| | - Wael A A Fadaly
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Gehan M Kamel
- Pharmacology Department, Faculty of Veterinary, Cairo University, Cairo, Egypt
| | - Yaseen A M M Elshaier
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assuit 71524, Egypt
| | - Mohammed A El-Magd
- Anatomy Department, Faculty of Veterinary Medicine, Kafrelshiekh University, Kafrelshiekh, 33516, Egypt
| |
Collapse
|
17
|
Pham J, Arul Nambi Rajan K, Li P, Parast MM. The role of Sirtuin1-PPARγ axis in placental development and function. J Mol Endocrinol 2018; 60:R201-R212. [PMID: 29467141 PMCID: PMC8584848 DOI: 10.1530/jme-17-0315] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 02/21/2018] [Indexed: 12/11/2022]
Abstract
Placental development is important for proper in utero growth and development of the fetus, as well as maternal well-being during pregnancy. Abnormal differentiation of placental epithelial cells, called trophoblast, is at the root of multiple pregnancy complications, including miscarriage, the maternal hypertensive disorder preeclampsia and intrauterine growth restriction. The ligand-activated nuclear receptor, PPARγ, and nutrient sensor, Sirtuin-1, both play a role in numerous pathways important to cell survival and differentiation, metabolism and inflammation. However, each has also been identified as a key player in trophoblast differentiation and placental development. This review details these studies, and also describes how various stressors, including hypoxia and inflammation, alter the expression or activity of PPARγ and Sirtuin-1, thereby contributing to placenta-based pregnancy complications.
Collapse
Affiliation(s)
- Jonathan Pham
- Department of PathologyUniversity of California San Diego, La Jolla, California, USA
- Sanford Consortium for Regenerative MedicineUniversity of California San Diego, La Jolla, California, USA
| | - Kanaga Arul Nambi Rajan
- Department of PathologyUniversity of California San Diego, La Jolla, California, USA
- Sanford Consortium for Regenerative MedicineUniversity of California San Diego, La Jolla, California, USA
| | - Ping Li
- Department of PathologyMedical School of Jinan University, Guangzhou, China
| | - Mana M Parast
- Department of PathologyUniversity of California San Diego, La Jolla, California, USA
- Sanford Consortium for Regenerative MedicineUniversity of California San Diego, La Jolla, California, USA
| |
Collapse
|
18
|
Ohtsu A, Shibutani Y, Seno K, Iwata H, Kuwayama T, Shirasuna K. Advanced glycation end products and lipopolysaccharides stimulate interleukin-6 secretion via the RAGE/TLR4-NF-κB-ROS pathways and resveratrol attenuates these inflammatory responses in mouse macrophages. Exp Ther Med 2017; 14:4363-4370. [PMID: 29067115 DOI: 10.3892/etm.2017.5045] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 02/14/2017] [Indexed: 12/20/2022] Open
Abstract
Macrophages are essential for regulating the physiology of pregnancy; however, excessive inflammatory responses to macrophages, induced by infection and/or endogenous danger signals, may potentially result in complications during pregnancy. Advanced glycation end-products (AGE) and lipopolysaccharides (LPS) are known to induce inflammation and are associated with adverse developmental outcomes. The aim of the present study was to examine the effect of AGE and LPS on cytokines in the J774 murine macrophage cell line and the potential effect of resveratrol on AGE- and LPS-induced inflammation in macrophages. AGE and LPS significantly increased IL-6 mRNA expression and secretion in J774 macrophages (P<0.05). Although AGE and LPS significantly stimulated IL-1β mRNA expression (P<0.05), they had no significant effect on IL-1β secretion. To assess the receptors for AGE and LPS, including receptor for AGE (RAGE) and Toll-like receptor (TLR4), blocking reagents (RAGE antagonist or TLR4 inhibitor) were added to the J774 macrophages. IL-6 secretion induced by AGE or LPS was significantly inhibited by pretreatment with RAGE antagonist (P<0.05) or TLR4 inhibitor (P<0.05). IL-6 secretion was dependent on nuclear factor (NF)-κB activation and the production of reactive oxygen species (ROS; P<0.05). Resveratrol suppressed mRNA expression and intracellular IL-6 production, resulting in significantly decreased IL-6 secretion after treatment with LPS or AGE (P<0.01). Furthermore, treatment with Ex527, which is a sirtuin-1 (SIRT1) inhibitor, significantly attenuated the anti-inflammatory effect of resveratrol (P<0.05), and treatment with 5-aminoimidazole-4-carboxamide ribonucleotide, which is a 5' adenosine monophosphate-activated protein kinase (AMPK) activator, resulted in a significant decrease in IL-6 secretion in J774 macrophages (P<0.05). The results of the present study indicated that AGE and LPS increase IL-6 secretion depending on NF-κB activation and ROS production through RAGE and/or TLR4 in the J774 murine macrophage cell line. Based on the present study, resveratrol appears to be an effective regulator of the inflammatory responses associated with SIRT1 and AMPK activation in macrophages. These results suggest that resveratrol may have therapeutic applications for controlling immune responses during pregnancy.
Collapse
Affiliation(s)
- Ayaka Ohtsu
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa 234-0034, Japan
| | - Yui Shibutani
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa 234-0034, Japan
| | - Kotomi Seno
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa 234-0034, Japan
| | - Hisataka Iwata
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa 234-0034, Japan
| | - Takehito Kuwayama
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa 234-0034, Japan
| | - Koumei Shirasuna
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa 234-0034, Japan
| |
Collapse
|
19
|
The In Vitro and In Vivo Anti-Inflammatory Effects of a Phthalimide PPAR-γ Agonist. Mar Drugs 2017; 15:md15010007. [PMID: 28054961 PMCID: PMC5295227 DOI: 10.3390/md15010007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 12/05/2016] [Accepted: 12/09/2016] [Indexed: 01/09/2023] Open
Abstract
Previously, the authors found that 4-hydroxy-2-(4-hydroxyphenethyl) isoindoline-1,3-dione (PD1) (a phthalimide analogue) bound to and activated peroxisome proliferator-activated receptor-γ (PPAR-γ). Since PPAR-γ suppresses inflammatory responses, the present study was undertaken to investigate the anti-inflammatory effects of PD1. In lipopolysaccharide (LPS)-stimulated murine RAW264.7 macrophages, PD1 suppressed the inductions of pro-inflammatory factors, including inducible nitric oxide synthase (iNOS), nitric oxide (NO), cyclooxygenase 2 (COX-2), tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6). Concomitantly, PD1 enhanced the expressions of anti-inflammatory factors, such as arginase-1 and interleukin-10 (IL-10), and suppressed LPS-evoked nuclear factor kappa B (NF-κB) p65 subunit phosphorylation in macrophages. In addition, PPAR-γ activated by PD1 was intensively translocated to the nucleus. These observations suggest that the anti-inflammatory mechanism of PD1 involves inhibition of the NF-κB pathway. In a subsequent in vivo animal experiment conducted using a carrageenan-induced acute inflammatory rat paw edema model, intraperitoneal injection of PD1 significantly reduced paw swelling. Histological analysis of rat paw tissue sections revealed less infiltration of immune cells in PD1-pretreated animals. These findings suggest that PD1 be viewed as a lead compound for the development of novel anti-inflammatory therapeutics.
Collapse
|
20
|
Zhou Y, Chen YH, Fu L, Yu Z, Xia MZ, Hu XG, Wang H, Xu DX. Vitamin D3 pretreatment protects against lipopolysaccharide-induced early embryo loss through its anti-inflammatory effects. Am J Reprod Immunol 2017; 77. [PMID: 28045211 DOI: 10.1111/aji.12620] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 11/19/2016] [Indexed: 12/22/2022] Open
Abstract
PROBLEM Increasing evidence demonstrates that inflammatory cytokines are involved in LPS-induced adverse pregnant outcomes including early embryo loss. Vitamin D3 (VitD3) has anti-inflammatory activity. We aimed to investigate the effects of vitamin D3 (VitD3) on LPS-induced early embryo loss in mice. METHOD OF STUDY All pregnant mice except controls were intraperitoneally (ip) injected with LPS on GD7. In VitD3 alone and LPS+VitD3 groups, pregnant mice were pretreated with VitD3 by gavage daily from GD5 to GD7. RESULTS LPS caused 62.5% pregnant mice with early embryo loss. Interestingly, the rate of abortion dropped to 14.3% when pregnant mice were pretreated with VitD3. Additional experiment showed that VitD3 significantly attenuated LPS-evoked elevation on TNF-α, IFN-γ, MIP-2, and nitrate plus nitrite in maternal serum. In addition, VitD3 alleviated LPS-induced COX-2 expression in the decidua and attenuated the elevation of PGF2α in maternal serum. Although VitD3 had no effect on IL-10 in maternal serum, it induced further elevation of serum IL-10 level in LPS-treated mice. Further analysis showed that VitD3 activated VDR signaling, simultaneously inhibited LPS-induced nuclear translocation of NF-κB p65 subunits in the decidua. CONCLUSIONS VitD3 protects mice from LPS-induced early embryo loss at least partially through its anti-inflammatory effects.
Collapse
Affiliation(s)
- Yan Zhou
- Department of Toxicology, Anhui Medical University, Hefei, China
| | - Yuan-Hua Chen
- Department of Histology and Embryology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Lin Fu
- Department of Toxicology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Zhen Yu
- Department of Toxicology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Mi-Zhen Xia
- School of Biological Science, Anhui Medical University, Hefei, China
| | - Xiao-Guang Hu
- Department of Toxicology, Anhui Medical University, Hefei, China
| | - Hua Wang
- Department of Toxicology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| |
Collapse
|
21
|
Chen YH, Hu XG, Zhou Y, Yu Z, Fu L, Zhang GB, Bo QL, Wang H, Zhang C, Xu DX. Obeticholic Acid Protects against Lipopolysaccharide-Induced Fetal Death and Intrauterine Growth Restriction through Its Anti-Inflammatory Activity. THE JOURNAL OF IMMUNOLOGY 2016; 197:4762-4770. [PMID: 27821667 DOI: 10.4049/jimmunol.1601331] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 10/08/2016] [Indexed: 12/16/2022]
Abstract
Farnesoid X receptor (FXR) is expressed in human and rodent placentas. Nevertheless, its function remains obscure. This study investigated the effects of obeticholic acid (OCA), a novel synthetic FXR agonist, on LPS-induced fetal death and intrauterine growth restriction. All pregnant mice except controls were i.p. injected with LPS (100 μg/kg) daily from gestational day (GD) 15 to GD17. Some pregnant mice were orally administered with OCA (5 mg/kg) daily from GD13 to GD17. As expected, placental FXR signaling was activated by OCA. OCA pretreatment protected against LPS-induced fetal death. In addition, OCA pretreatment alleviated LPS-induced reduction of fetal weight and crown-rump length. Additional experiments showed that OCA inhibited LPS-evoked TNF-α in maternal serum and amniotic fluid. Moreover, OCA significantly attenuated LPS-induced upregulation of placental proinflammatory genes including Tnf-α, Il-1β, IL-6, Il-12, Mip-2, Kc, and Mcp-1 By contrast, OCA elevated anti-inflammatory cytokine IL-10 in maternal serum, amniotic fluid, and placenta. Further analysis showed that OCA blocked nuclear translocation of NF-κB p65 and p50 subunits in trophoblast giant cells of the labyrinth zone. These results provide a mechanistic explanation for placental FXR-mediated anti-inflammatory activity. Overall, this study provides evidence for roles of FXR as an important regulator of placental inflammation.
Collapse
Affiliation(s)
- Yuan-Hua Chen
- Department of Toxicology, Anhui Medical University, Hefei 230032, China.,Laboratory of Environmental Toxicology, Hefei 230032, China; and.,Department of Histology and Embryology, Anhui Medical University, Hefei 230032, China
| | - Xiao-Guang Hu
- Department of Toxicology, Anhui Medical University, Hefei 230032, China.,Laboratory of Environmental Toxicology, Hefei 230032, China; and
| | - Yan Zhou
- Department of Toxicology, Anhui Medical University, Hefei 230032, China.,Laboratory of Environmental Toxicology, Hefei 230032, China; and
| | - Zhen Yu
- Department of Toxicology, Anhui Medical University, Hefei 230032, China.,Laboratory of Environmental Toxicology, Hefei 230032, China; and
| | - Lin Fu
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Gui-Bin Zhang
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - Qing-Li Bo
- Department of Toxicology, Anhui Medical University, Hefei 230032, China.,Laboratory of Environmental Toxicology, Hefei 230032, China; and
| | - Hua Wang
- Department of Toxicology, Anhui Medical University, Hefei 230032, China.,Laboratory of Environmental Toxicology, Hefei 230032, China; and
| | - Cheng Zhang
- Department of Toxicology, Anhui Medical University, Hefei 230032, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei 230032, China; .,Laboratory of Environmental Toxicology, Hefei 230032, China; and
| |
Collapse
|
22
|
Chin PY, Dorian CL, Hutchinson MR, Olson DM, Rice KC, Moldenhauer LM, Robertson SA. Novel Toll-like receptor-4 antagonist (+)-naloxone protects mice from inflammation-induced preterm birth. Sci Rep 2016; 6:36112. [PMID: 27819333 PMCID: PMC5098167 DOI: 10.1038/srep36112] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 10/11/2016] [Indexed: 12/29/2022] Open
Abstract
Toll-like receptor 4 (TLR4) activation by bacterial infection, or by sterile inflammatory insult is a primary trigger of spontaneous preterm birth. Here we utilize mouse models to investigate the efficacy of a novel small molecule TLR4 antagonist, (+)-naloxone, the non-opioid isomer of the opioid receptor antagonist (−)-naloxone, in infection-associated preterm birth. Treatment with (+)-naloxone prevented preterm delivery and alleviated fetal demise in utero elicited by i.p. LPS administration in late gestation. A similar effect with protection from preterm birth and perinatal death, and partial correction of reduced birth weight and postnatal mortality, was conferred by (+)-naloxone administration after intrauterine administration of heat-killed E. coli. Local induction by E. coli of inflammatory cytokine genes Il1b, Il6, Tnf and Il10 in fetal membranes was suppressed by (+)-naloxone, and cytokine expression in the placenta, and uterine myometrium and decidua, was also attenuated. These data demonstrate that inhibition of TLR4 signaling with the novel TLR4 antagonist (+)-naloxone can suppress the inflammatory cascade of preterm parturition, to prevent preterm birth and perinatal death. Further studies are warranted to investigate the utility of small molecule inhibition of TLR-driven inflammation as a component of strategies for fetal protection and delaying preterm birth in the clinical setting.
Collapse
Affiliation(s)
- Peck Yin Chin
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA 5005, Australia
| | - Camilla L Dorian
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA 5005, Australia
| | - Mark R Hutchinson
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5005, Australia.,Australian Research Council Centre of Excellence for Nanoscale BioPhotonics, Adelaide, SA, 5005, Australia
| | - David M Olson
- Departments of Obstetrics &Gynecology, Pediatrics and Physiology, University of Alberta, Edmonton, Alberta T6G2S2, Canada
| | - Kenner C Rice
- Chemical Biology Research Branch, National Institute on Drug Abuse and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, MD 20892, USA
| | - Lachlan M Moldenhauer
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA 5005, Australia
| | - Sarah A Robertson
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA 5005, Australia
| |
Collapse
|
23
|
Cao X, Zhang L, Chen C, Wang Q, Guo L, Ma Q, Deng P, Zhu G, Li B, Pi Y, Long C, Zhang L, Yu Z, Zhou Z, Li J. The critical role of ABCG1 and PPARγ/LXRα signaling in TLR4 mediates inflammatory responses and lipid accumulation in vascular smooth muscle cells. Cell Tissue Res 2016; 368:145-157. [DOI: 10.1007/s00441-016-2518-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 09/27/2016] [Indexed: 12/15/2022]
|
24
|
Mangiferin Inhibits IL-1β-Induced Inflammatory Response by Activating PPAR-γ in Human Osteoarthritis Chondrocytes. Inflammation 2016; 40:52-57. [DOI: 10.1007/s10753-016-0451-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|