1
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Zhang Y, Su W, Niu Y, Zeng H, Liu L, Wang L, Xie W. Bif‑1 inhibits activation of inflammasome through autophagy regulatory mechanism. Mol Med Rep 2024; 29:67. [PMID: 38456519 PMCID: PMC10938286 DOI: 10.3892/mmr.2024.13191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/06/2024] [Indexed: 03/09/2024] Open
Abstract
Inflammasome activation is a crucial mechanism in inflammatory responses. Bax‑interacting factor 1 (Bif‑1) is required for the normal formation of autophagosomes, but its ability to exert an inflammatory regulatory effect remains unclear. The aim of the present study was to explore the role of Bif‑1 in inflammation, possibly mediated through autophagy regulation. Using a lipopolysaccharide (LPS)/adenosine triphosphate (ATP)‑induced inflammatory model in J774A.1 cells, the effect of Bif‑1 on inflammasome activation and the underlying mechanisms involving autophagy regulation were investigated. Elevated levels of NLR family pyrin domain containing protein 3 inflammasome and interleukin‑1β (IL‑1β) proteins were observed in J774A.1 cells after LPS/ATP induction. Furthermore, Bif‑1 and autophagy activity were significantly upregulated in inflammatory cells. Inhibition of autophagy resulted in inflammasome activation. Silencing Bif‑1 expression significantly upregulated IL‑1β levels and inhibited autophagy activity, suggesting a potential anti‑inflammatory role of Bif‑1 mediated by autophagy. Additionally, inhibition of the nuclear factor‑κB (NF‑κB) signaling pathway downregulated Bif‑1 and inhibited autophagy activity, highlighting the importance of NF‑κB in the regulation of Bif‑1 and autophagy. In summary, the current study revealed that Bif‑1 is a critical anti‑inflammatory factor against inflammasome activation mediated by a mechanism of autophagy regulation, indicating its potential as a therapeutic target for inflammatory regulation.
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Affiliation(s)
- Yuehui Zhang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518101, P.R. China
| | - Wenhui Su
- State Key Laboratory of Chemical Oncogenomics, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
| | - Yaoyun Niu
- State Key Laboratory of Chemical Oncogenomics, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
| | - Hongli Zeng
- State Key Laboratory of Chemical Oncogenomics, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
| | - Lu Liu
- Department of Critical Care Medicine, The Second Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518101, P.R. China
| | - Lijun Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518101, P.R. China
- Department of Critical Care Medicine, Shenzhen FuYong People's Hospital, Shenzhen, Guangdong 518103, P.R. China
| | - Weidong Xie
- State Key Laboratory of Chemical Oncogenomics, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
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2
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Yao L, Gui M, Li J, Lu B, Wang J, Zhou X, Fu D. [Retracted] Shengxian decoction decreases doxorubicin‑induced cardiac apoptosis by regulating the TREM1/ NF‑κB signaling pathway. Mol Med Rep 2024; 29:35. [PMID: 38214303 PMCID: PMC10823304 DOI: 10.3892/mmr.2024.13159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/29/2020] [Indexed: 01/13/2024] Open
Abstract
Following the publication of this paper, it was drawn to the Editor's attention by a concerned reader that the majority of the Histone H3 control western blotting data featured in Figs. 2D and 4C were strikingly similar to data appearing in different form in other articles written by different authors at different research institutes. Owing to the fact that the contentious data in the above article had already been published elsewhere prior to its submission to Molecular Medicine Reports, the Editor has decided that this paper should be retracted from the Journal. The authors were asked for an explanation to account for these concerns, but the Editorial Office did not receive a reply. The Editor apologizes to the readership for any inconvenience caused. [Molecular Medicine Reports 23: 219, 2021; DOI: 10.3892/mmr.2021.11858].
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Affiliation(s)
- Lei Yao
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Mingtai Gui
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Jianhua Li
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Bo Lu
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Jing Wang
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Xunjie Zhou
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Deyu Fu
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
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3
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Guo X, Qiao G, Wang J, Yang C, Zhao M, Zhang Q, Wan Y. TIFA contributes to periodontitis in diabetic mice via activating the NF‑κB signaling pathway. Mol Med Rep 2024; 29:23. [PMID: 38099344 PMCID: PMC10784739 DOI: 10.3892/mmr.2023.13146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Diabetic periodontitis (DP) refers to destruction of periodontal tissue and absorption of bone tissue in diabetic patients. Tumor necrosis factor receptor‑associated factor (TRAF)‑interacting protein with forkhead‑associated domain (TIFA) as a crucial regulator of inflammation activates the NF‑κB signaling pathway to regulate cell biological behavior. However, the function and mechanism of TIFA on DP suffer from a lack of research. In the present study, TIFA was upregulated in the periodontal tissue of a DP mouse model. In addition, the expression of TIFA in RAW264.7 cells was induced by high glucose (HG) culture and increased by lipopolysaccharide (LPS) from Porphyromonas gingivalis treatment in a time‑dependent manner. Knockdown of TIFA significantly reduced the levels of inflammatory cytokines, including TNF‑α, IL‑6, IL‑1β and monocyte chemoattractant protein‑1, in HG and LPS‑induced RAW264.7 cells. The nuclear translocation of NF‑κB p65 was induced by HG and LPS and was clearly suppressed by absence of TIFA. The expression of downstream factors Nod‑like receptor family pyrin domain‑containing 3 and apoptosis‑associated speck‑like protein was inhibited by silencing TIFA. Moreover, TIFA was increased by receptor activator of NF‑κB (RANK) ligand (RANKL) in a concentration dependent manner. The expression of cathepsin K, MMP9 and nuclear factor of activated T cells cytoplasmic 1 was downregulated by depletion of TIFA. RANKL‑induced osteoclast differentiation was inhibited by silencing of TIFA. Meanwhile, the decrease of TIFA blocked activation of the NF‑κB pathway in RANKL‑treated RAW264.7 cells. In conclusion, TIFA as a promoter regulates the inflammation and osteoclast differentiation via activating the NF‑κB signaling pathway.
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Affiliation(s)
- Xiaoqian Guo
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
- Ningxia Key Laboratory of Oral Disease Research, School of Stomatology, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Guangwei Qiao
- Department of Oral and Maxillofacial Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Jingjiao Wang
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Changyi Yang
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Min Zhao
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Qian Zhang
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Yingbiao Wan
- Department of Prosthodontics and Oral Implantology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
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4
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Li T, Zhai YX, Zheng T, Xu B. Neferine exerts anti‑inflammatory activity in BV‑2 microglial cells and protects mice with MPTP‑induced Parkinson's disease by inhibiting NF‑κB activation. Mol Med Rep 2023; 28:235. [PMID: 37921051 DOI: 10.3892/mmr.2023.13122] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/06/2023] [Indexed: 11/04/2023] Open
Abstract
Abnormal activation of microglia and the production of proinflammatory cytokines can lead to chronic neuroinflammation, which is an important pathological characteristic of Parkinson's disease (PD). Neferine is a chemical compound extracted from lotus seed which has previously been reported to exert protective effects on the development of several types of cancer, myocardial injury and hypoxic‑ischemic encephalopathy. However, its effect on microglial functions in neuroinflammation remains to be clarified. The present study used network pharmacology and screening in a lipopolysaccharide (LPS) model to demonstrate that neferine suppresses the production of inducible nitric oxide synthase, interleukin‑6 and tumor necrosis factor α in LPS‑treated BV‑2 cells. The working concentration of neferine did not exert cytotoxic effects on BV‑2 cells. Mechanistically, neferine attenuated inflammation by inhibiting the phosphorylation and nuclear translocation of the NF‑κB p65 subunit. In vivo, neferine protected mice from the inflammatory response in the substantia nigra and inhibited the development of nervous disorders in the 1‑methyl‑4‑phenyl‑1,2,3,6‑tetrahydropyridine‑induced PD model. The present study demonstrated that neferine inhibited LPS‑mediated activation of microglia by inhibiting NF‑κB signaling. These findings may provide a new reference for the prevention and future treatment of PD.
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Affiliation(s)
- Ting Li
- Department of Neurology, The First People's Hospital of Shenyang, Shenyang, Liaoning 110000, P.R. China
| | - Yun Xin Zhai
- Department of Neurology, The First People's Hospital of Shenyang, Shenyang, Liaoning 110000, P.R. China
| | - Tianyi Zheng
- Department of Anal Disease, Shenyang Anorectal Hospital, Shenyang, Liaoning 110000, P.R. China
| | - Bing Xu
- Department of Neurology, The First People's Hospital of Shenyang, Shenyang, Liaoning 110000, P.R. China
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5
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Wang M, Wu Y, Li X, Dai M, Li S. IGJ suppresses breast cancer growth and metastasis by inhibiting EMT via the NF‑κB signaling pathway. Int J Oncol 2023; 63:105. [PMID: 37539706 PMCID: PMC10552693 DOI: 10.3892/ijo.2023.5553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/06/2023] [Indexed: 08/05/2023] Open
Abstract
Breast cancer metastasis is the primary cause of mortality of patients with breast cancer. The present study aimed to explore the role and underlying mechanisms of IGJ in the invasion and metastasis of breast cancer. The Cancer Genome Atlas database was utilized to analyze the differential gene expression profiles in patients with breast cancer with or without metastasis; the target gene, joining chain of multimeric IgA and IgM (JCHAIN, also known as IGJ, as referred to herein), with significant expression and with prognostic value was screened. The expression levels of IGJ in human breast cancer paired tissues and cell lines were detected using reverse transcription‑quantitative PCR and western blot analysis. IGJ differential expression was detected in paired human breast cancer tissues using immunohistochemistry. The role of IGJ in breast cancer was verified using CCK‑8, invasion and migration assays, and scratch tests in vivo and in vitro. Further exploration of the role and mechanism of IGJ in breast cancer was conducted through Gene Set Enrichment Analysis, Kyoto Encyclopedia of Genes and Genomes analysis, western blot analysis and immunofluorescence experiments. Through the analysis of gene expression profiles, it was found that IGJ was poorly expressed in patients with breast cancer with metastasis compared to patients with non‑metastatic breast cancer. The overexpression of IGJ was associated with an improved distant metastasis‑free survival and overall survival (OS). COX multivariate regression analysis demonstrated that IGJ was an independent prognostic factor for the OS and relapse‑free survival of patients with breast cancer. In comparison to healthy breast cancer adjacent tissues and cell lines, IGJ was poorly expressed in breast cancer tissues and cell lines (P<0.05). Further analyses indicated that the overexpression of IGJ suppressed the proliferation, invasion and metastasis of breast cancer cells in vivo and in vitro by inhibiting the occurrence of epithelial‑to‑mesenchymal transition (EMT) and suppressing the nuclear translocation of p65. Finally, rescue experiments indicated that IGJ restricted the proliferation and metastasis of breast cancer cells by regulating the NF‑κB signaling pathway. On the whole, the present study demonstrates that IGJ suppresses the invasion and metastasis of breast cancer by inhibiting both the occurrence of EMT and the NF‑κB signaling pathway. These findings may provide novel biomarkers and potential therapeutic targets for the treatment of metastatic breast cancer.
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Affiliation(s)
- Mengxue Wang
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016
| | - Yushen Wu
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016
| | - Xunjia Li
- Department of Nephrology, Chongqing Traditional Chinese Medicine Hospital, Chongqing 400013
| | - Meng Dai
- Department of Geriatric Oncology, Department of Palliative care, Chongqing University Cancer Hospital, Chongqing 400030, P.R. China
| | - Shengwei Li
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010
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6
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Lin Y, Kojima S, Ishikawa A, Matsushita H, Takeuchi Y, Mori Y, Ma J, Takeuchi K, Umezawa K, Wakatsuki A. Inhibition of MLCK‑mediated migration and invasion in human endometriosis stromal cells by NF‑κB inhibitor DHMEQ. Mol Med Rep 2023; 28:141. [PMID: 37326118 DOI: 10.3892/mmr.2023.13028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
Endometriosis is initiated by the movement of endometrial cells in the uterus to the fallopian tubes, the ovaries and the peritoneal cavity after the shedding of the uterus lining. To cause endometriosis, it is often necessary for these endometrial cells to migrate, invade and grow at the secondary site. In the present study, immortalized human endometriosis stromal cells (HESC) were employed to look for the inhibitors of migration and invasion. Using a chemical library of bioactive metabolites, it was found that an NF‑κB inhibitor, DHMEQ, inhibited the migration and invasion of HESC. Both whole‑genome array and metastasis PCR array analyses suggested the involvement of myosin light chain kinase (MLCK) in the mechanism of inhibition. DHMEQ was confirmed to inhibit the expression of MLCK and small inhibitory RNA knockdown of MLCK reduced cellular migration and invasion. The addition of DHMEQ to the knockdown cells did not further inhibit migration and invasion. DHMEQ is particularly effective in suppressing disease models by intraperitoneal (IP) administration and this therapy is being developed for the treatment of inflammation and cancer. DHMEQ IP therapy may also be useful for the treatment of endometriosis.
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Affiliation(s)
- Yinzhi Lin
- Department of Molecular Target Medicine , Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Shiori Kojima
- Department of Molecular Target Medicine , Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Ayaka Ishikawa
- Department of Obstetrics and Gynecology, Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Hiroshi Matsushita
- Department of Obstetrics and Gynecology, Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Yuka Takeuchi
- Department of Biology, Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Yuki Mori
- Department of Biology, Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Jun Ma
- Department of Molecular Target Medicine , Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Kosei Takeuchi
- Department of Biology, Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Kazuo Umezawa
- Department of Molecular Target Medicine , Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
| | - Akihiko Wakatsuki
- Department of Obstetrics and Gynecology, Aichi Medical University, Nagakute, Aichi 480‑1195, Japan
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7
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Lu S, He T, Zhang Y, Zhou B, Zhang Q, Yan S. The MyD88 inhibitor, ST2825, induces cell cycle arrest and apoptosis by suppressing the activation of the NF‑κB/AKT1/p21 pathway in pancreatic cancer. Oncol Rep 2023; 50:148. [PMID: 37326109 DOI: 10.3892/or.2023.8585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/03/2023] [Indexed: 06/17/2023] Open
Abstract
NF‑κB activation occurs in the majority patients with pancreatic ductal adenocarcinoma (PDAC); however, directly targeting NF‑κB has proven unsuccessful, and recent studies have demonstrated a certain effect of the indirect inhibition of NF‑κB. Myeloid differentiation factor 88 (MyD88) is a common intermediate messenger for NF‑κB activation by inducers. In the present study, the level of MyD88 in PDAC was detected using a public database and a tissue chip. A specific inhibitor (ST2825) of MyD88 was used on PDAC cell lines. Flow cytometry was used to examine apoptosis and cell cycle progression. Transcriptome sequencing was used for ST2825‑treated PANC‑1 cells compared with untreated PANC‑1 cells. The levels of related factors were measured using reverse transcription‑quantitative PCR and western blot analysis. Chromatin immunoprecipitation, co‑immunoprecipitation, transcription factor assay and an NF‑κB phospho‑antibody array were performed to identify the detailed underlying mechanisms. Animal experiments were performed to verify the effects of ST2825 on PDAC, which were found in the in vitro experiments. MyD88 was found to be overexpressed in PDAC. ST2825 induced the G2/M phase cell cycle arrest and apoptosis of PDAC cells. ST2825 inhibited MyD88 dimerization to inactivate the NF‑κB pathway. ST2825 inhibited AKT1 expression and induced p21 overexpression to induce G2/M phase cell cycle arrest and apoptosis by inhibiting NF‑κB transcriptional activity. NF‑κB activation, AKT1 overexpression or p21 knockdown partially reversed the effects of ST2825 in PDAC. On the whole, the findings of the present study demonstrate that ST2825 induces G2/M cell cycle arrest and apoptosis via the MyD88/NF‑κB/AKT1/p21 pathway in PDAC. MyD88 may thus serve as a potential therapeutic target in PDAC. ST2825 may serve as a novel agent for the targeted therapy of PDAC in the future.
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Affiliation(s)
- Sinan Lu
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Tianyu He
- Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, Zhejiang 310009, P.R. China
| | - Yuan Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Bo Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Qiyi Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Sheng Yan
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
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8
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Yang F, Su Y, Liang J, Wang K, Lian H, Chen J, Xu J, Zhao J, Liu Q. Casticin suppresses RANKL‑induced osteoclastogenesis and prevents ovariectomy‑induced bone loss by regulating the AKT/ERK and NF‑κB signaling pathways. Int J Mol Med 2023; 51:43. [PMID: 37052260 DOI: 10.3892/ijmm.2023.5246] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/23/2023] [Indexed: 04/14/2023] Open
Abstract
Postmenopausal osteoporosis is a systemic metabolic disease that chronically endangers public health and is typically characterized by low bone mineral density and marked bone fragility. The excessive bone resorption activity of osteoclasts is a major factor in the pathogenesis of osteoporosis; therefore, strategies aimed at inhibiting osteoclast activity may prevent bone decline and attenuate the process of osteoporosis. Casticin (Cas), a natural compound, has anti‑inflammatory and antitumor properties. However, the role of Cas in bone metabolism remains largely unclear. The present study found that the receptor activator of nuclear factor‑κΒ (NF‑κB) ligand‑induced osteoclast activation and differentiation were inhibited by Cas. Tartrate‑resistant acid phosphatase staining revealed that Cas inhibited osteoclast differentiation, and bone resorption pit assays demonstrated that Cas affected the function of osteoclasts. Cas significantly reduced the expression of osteoclast‑specific genes and related proteins, such as nuclear factor of activated T cells, cytoplasmic 1 and c‑Fos at the mRNA and protein level in a concentration‑dependent manner. Cas inhibited osteoclast formation by blocking the AKT/ERK and NF‑κB signaling pathways, according to the intracellular signaling analysis. The microcomputed tomography and tissue staining of tibiae from ovariectomized mice revealed that Cas prevented the bone loss induced by estrogen deficiency and reduced osteoclast activity in vivo. Collectively, these findings indicated that Cas may be used to prevent osteoporosis.
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Affiliation(s)
- Fan Yang
- Research Centre for Regenerative Medicine, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yuangang Su
- Research Centre for Regenerative Medicine, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Jiamin Liang
- Research Centre for Regenerative Medicine, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Keyi Wang
- Research Centre for Regenerative Medicine, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Haoyu Lian
- Research Centre for Regenerative Medicine, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Junchun Chen
- Research Centre for Regenerative Medicine, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Jiake Xu
- School of Biomedical Sciences, The University of Western Australia, Perth 6009, Australia
| | - Jinmin Zhao
- Research Centre for Regenerative Medicine, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Qian Liu
- Research Centre for Regenerative Medicine, Department of Orthopaedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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9
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Li H, Sun L, Wang Y. Inhibition of LPS‑induced NLRP3 inflammasome activation by stem cell‑conditioned culture media in human gingival epithelial cells. Mol Med Rep 2023; 27:106. [PMID: 37026523 PMCID: PMC10119624 DOI: 10.3892/mmr.2023.12993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 03/15/2023] [Indexed: 04/08/2023] Open
Abstract
Interleukin (IL)‑1β is a pathogenic factor associated with the destruction of periodontal tissue in periodontitis. IL‑1β processing is regulated by cytosolic machinery known as the inflammasome. Porphyromonas gingivalis infection and lipopolysaccharide (LPS) have an important role in the destruction of periodontal tissue in periodontitis. P. gingivalis infection and LPS have been reported to activate the NOD‑like receptor family pyrin domain‑containing protein 3 (NLRP3) inflammasome in human oral cells. Stem cell therapy exhibits anti‑inflammatory effects and stem cell‑conditioned culture media (SCM) shows similar beneficial effects. The present study tested the hypothesis that SCM inhibits activation of the inflammasome and protects human gingival epithelial cells (GECs) against LPS‑induced inflammatory damage. Human GECs were treated with or without LPS plus SCM or control cell media. NLPR3 inflammasome components and inflammatory factors were measured by western blotting and immunofluorescence. The present study revealed that LPS induced an increase in the expression of inflammasome components, NLRP3, apoptosis‑associated speck‑like protein containing a caspase recruitment domain (ASC) and caspase‑1. Co‑immunoprecipitation revealed increased binding of NLRP3 and ASC, and immunofluorescence showed an increased co‑localization of ASC and caspase‑1, suggesting that LPS stimulated assembly of the NLRP3 inflammasome. SCM inhibited the overexpression and assembly of NLRP3 inflammasome components induced by LPS. Furthermore, SCM blocked the increase in IL‑1β production induced by LPS and inhibited the translocation of the inflammatory factor, NF‑κB, into the nuclei. Consequently, SCM protected cells against LPS‑induced damage, as suggested by the recovery of disturbed E‑cadherin staining pattern, which indicates a disruption in epithelial integrity. In conclusion, treatment with SCM may attenuate LPS‑induced inflammatory damage in human GECs via inhibition of NLRP3 inflammasome activation, suggesting a potential therapeutic use for SCM.
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Affiliation(s)
- Hong Li
- Department of Stomatology, The First Affiliated Hospital, Henan University of Science and Technology, Luoyang, Henan 471000, P.R. China
| | - Licong Sun
- Department of Stomatology, The First Affiliated Hospital, Henan University of Science and Technology, Luoyang, Henan 471000, P.R. China
| | - Yuesen Wang
- Department of Stomatology, The First Affiliated Hospital, Henan University of Science and Technology, Luoyang, Henan 471000, P.R. China
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10
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Pan C, Shao S, Gu Y, Ni Q. Radiation prevents tumor progression by inhibiting the miR‑93‑5p/EphA4/ NF‑κB pathway in triple‑negative breast cancer. Oncol Rep 2023; 49:78. [PMID: 36866759 DOI: 10.3892/or.2023.8515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/28/2022] [Indexed: 03/04/2023] Open
Abstract
Breast cancer (BC) is the most common type of cancer in women. Triple‑negative BC (TNBC) constitutes 10‑15% of all BC cases and is associated with a poor prognosis. It has previously been reported that microRNA (miR)‑93‑5p is dysregulated in plasma exosomes from patients with BC and that miR‑93‑5p improves radiosensitivity in BC cells. The present study identified EphA4 as a potential target gene of miR‑93‑5p and investigated the pathway related to miR‑93‑5p in TNBC. Cell transfection and nude mouse experiments were performed to verify the role of the miR‑93‑5p/EphA4/NF‑κB pathway. Moreover, miR‑93‑5p, EphA4 and NF‑κB were detected in clinical patients. The results revealed that EphA4 and NF‑κB were downregulated in the miR‑93‑5p overexpression group. By contrast, EphA4 and NF‑κB expression levels were not significantly altered in the miR‑93‑5p overexpression + radiation group compared with those in the radiation group. Furthermore, overexpression of miR‑93‑5p with concomitant radiation therapy significantly decreased the growth of TNBC tumors in vivo. In conclusion, the present study revealed that miR‑93‑5p targeted EphA4 in TNBC through the NF‑κB pathway. However, radiation therapy prevented tumor progression by inhibiting the miR‑93‑5p/EphA4/NF‑κB pathway. Therefore, it would be interesting to elucidate the role of miR‑93‑5p in clinical research.
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Wang C, Wu Z, Li Z, Wang Z, Ke H, Huang X. Beneficial effect of the mitochondrial ATP‑sensitive potassium channel‑specific opener nicorandil on the collapsed lung via inhibition of apoptosis in clinical thoracic surgery. Mol Med Rep 2023; 27:61. [PMID: 36734261 DOI: 10.3892/mmr.2023.12948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 10/20/2022] [Indexed: 02/04/2023] Open
Abstract
With the use of thoracoscopic surgery technology, one‑lung ventilation (OLV) is becoming more crucial as a basic requirement for enhanced recovery after surgery; however, it can lead to severe pulmonary injury, which is an issue for anesthesiologists. Therefore, it is important to protect pulmonary function during thoracic surgery anesthesia, particularly to protect the function of the collapsed lung. Our previous study on rabbits reported that nicorandil, a US Food and Drug Administration‑approved mitochondrial ATP‑sensitive potassium channel‑specific opener, can protect against lung injury in the collapsed lung. Therefore, the beneficial effect of nicorandil on OLV‑induced pulmonary injury in clinical thoracic surgery was further evaluated in the present study. Nicorandil was infused at 2 mg/h for 2 h from induction to 1 h after OLV in the nicorandil group. Trends in arterial oxygen desaturation (SaO2), arterial partial pressure for oxygen (PaO2) and the lung microstructure were assessed. ELISA was used to assess the levels of TNF‑α and malondialdehyde (MDA), and the activity of superoxide dismutase (SOD). A TUNEL assay was performed to evaluate apoptosis. Western blotting was used to analyze the relative expression levels of signaling proteins associated with apoptosis. Western blotting was performed to evaluate the protein expression levels of hypoxia‑inducible factor 1α (HIF‑1α), PI3K, Akt and NF‑κB, and reverse transcription‑quantitative PCR was used to detect HIF‑1α mRNA expression levels in the lungs of patients infused with nicorandil and nitroglycerin. Nicorandil treatment was associated with higher SaO2 and PaO2 compared with nitroglycerin treatment in OLV. The levels of MDA and TNF‑α in the operated lung of the nicorandil group were significantly lower compared with those in the control group. In addition, nicorandil was associated with higher SOD activity compared with nitroglycerin. The nicorandil‑treated lung, similar to the sham group, exhibited improved microstructure and less apoptosis in the experimental group. The protein expression levels of PI3K, phosphorylated Akt and HIF‑1α were significantly increased, whereas NF‑κB was significantly decreased in the nicorandil‑treated lung compared with the control group. Overall, nicorandil demonstrated beneficial effects by decreasing apoptosis in the operated lung, which was collapsed and then re‑expanded during OLV in thoracic surgery anesthesia. Nicorandil may serve a vital role by decreasing the overloading of calcium in mitochondria, shutting off the mitochondrial membrane permeability transition pore, reducing the release of cytochrome c, simultaneously triggering activation of the PI3K/Akt signaling pathway around the cell membrane, downregulating NF‑κB, upregulating HIF‑1α, and then reducing Bax/Bcl‑2, caspase‑3 and apoptosis. The trial registration was ChiCTR‑IOR‑17014061 (registered on December 20, 2017).
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Affiliation(s)
- Chunguang Wang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Zhengwen Wu
- Department of Anesthesiology, Yangzhou Hongquan Hospital, Yangzhou, Jiangsu 225200, P.R. China
| | - Zhiqin Li
- Department of Anesthesiology, Xiamen University Hospital Affiliated of Xiamen University, Xiamen, Fujian 361005, P.R. China
| | - Zhichun Wang
- Department of Anesthesiology, Shuyang Hospital Affiliated of Xuzhou Medical University, Suqian, Jiangsu 223600, P.R. China
| | - Honggang Ke
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xinchong Huang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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12
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Li M, Xiao Y, Liu P, Wei L, Zhang T, Xiang Z, Liu X, Zhang K, Zhong Q, Chen F. 4‑Methoxydalbergione inhibits esophageal carcinoma cell proliferation and migration by inactivating NF‑κB. Oncol Rep 2023; 49:42. [PMID: 36633144 PMCID: PMC9868687 DOI: 10.3892/or.2023.8479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/07/2022] [Indexed: 01/13/2023] Open
Abstract
4‑Methoxydalbergione (4‑MD) can inhibit the progression of certain types of cancer; however, its effects on esophageal cancer (EC) remain unclear. The present study aimed to investigate the inhibitory effect of 4‑MD on EC and its molecular mechanism. ECA‑109 and KYSE‑105 cells were treated with or without lipopolysaccharide (LPS) and 4‑MD. Cell Counting Kit‑8 and colony formation assays were used to analyze cell proliferation. Wound healing assay was performed to evaluate cell migration. ELISA and western blotting were performed to measure the expression levels of NF‑κB and inflammatory cytokines. In cells treated with 4‑MD, proliferation and migration were significantly inhibited, the levels of inflammatory cytokines were downregulated and the NF‑κB signaling pathway was inactivated. Notably, proliferation, migration, inflammation and NF‑κB were promoted by LPS, whereas 4‑MD reversed the increases induced by LPS in EC cells. In conclusion, 4‑MD may attenuate the proliferation and migration of EC cells by inactivating the NF‑κB signaling pathway.
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Affiliation(s)
- Ming Li
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Yubo Xiao
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Pinyue Liu
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Le Wei
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Ti Zhang
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Ziye Xiang
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Xiaoyan Liu
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Keyun Zhang
- Department of Orthopedics, The First Affiliated Hospital of Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Qiaoqing Zhong
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard University, Boston, MA 02115, USA,Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China,Correspondence to: Professor Qiaoqing Zhong, Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard University, CC-454, 1 Deaconess Road (Rosenberg Building), Boston, MA 02215, USA, E-mail:
| | - Fangzhi Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China,Professor Fangzhi Chen, Department of Gastroenterology, The Second Affiliated Hospital of Hengyang Medical School, University of South China, 28 West Changsheng Road, Hengyang, Hunan 421001, P.R. China, E-mail:
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13
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Sim JS, Lee HY, Yim M. Anti‑osteoclastogenic effects of Coriandrum sativum L. via the NF‑κB and ERK‑mediated NFATc1 signaling pathways. Mol Med Rep 2022; 26:333. [PMID: 36082821 DOI: 10.3892/mmr.2022.12849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 06/08/2022] [Indexed: 11/06/2022] Open
Abstract
Coriandrum sativum L. (CSL) is an aromatic plant that belongs to the Apiaceae family. The present study aimed to determine the effects of the ethanol extract of the aerial part of CSL on osteoclast formation in vitro and in vivo, and the underlying molecular mechanism of its anti‑osteoclastogenic effect. The levels of osteoclast formation and bone resorption were evaluated by tartrate‑resistant acid phosphatase staining and bone resorption pit assays. The expression levels of osteoclast‑related molecules were analyzed by reverse transcription‑quantitative PCR and western blotting. The ethanol extract of CSL suppressed osteoclast formation in a mouse co‑culture system. In osteoblasts, CSL exerted a minor effect on the mRNA ratio of receptor activator of nuclear factor‑κB (NF‑κB) ligand (RANKL) to osteoprotegerin, suggesting a direct effect of CSL on osteoclast precursors. Notably, CSL inhibited RANKL‑induced osteoclast differentiation and bone resorption activity in bone marrow‑derived macrophage cultures. Mechanistically, CSL abolished RANKL‑induced NF‑κB and extracellular signal‑regulated kinase (ERK) MAPK activation, which effectively impaired the induction of c‑Fos and nuclear factor of activated T cells (NFATc1). Finally, the ethanol extract of CSL prevented osteoclast formation in a lipopolysaccharide‑induced calvarial bone loss model in vivo. The findings of the present study suggested that CSL may suppress osteoclast differentiation and function by downregulating the NF‑κB and ERK/c‑Fos/NFATc1 signaling pathways. Thus, CSL could be explored as a potential candidate for the prevention and treatment of osteolytic diseases.
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Affiliation(s)
- Jung-Sun Sim
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Hwa-Yeong Lee
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Mijung Yim
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
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14
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Cai P, Yan S, Lu Y, Zhou X, Wang X, Wang M, Yin Z. Carnosol inhibits osteoclastogenesis in vivo and in vitro by blocking the RANKL‑induced NF‑κB signaling pathway. Mol Med Rep 2022; 26:225. [PMID: 35593299 PMCID: PMC9178676 DOI: 10.3892/mmr.2022.12741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 09/28/2021] [Indexed: 11/13/2022] Open
Abstract
Bone homeostasis is maintained by osteoclast-mediated bone resorption and osteoblast-mediated bone formation. Disruption of bone homeostasis due to excessive osteoclastogenesis or reduced osteogenesis results in various disorders, such as postmenopausal osteoporosis. Receptor activator of NF-κB ligand (RANKL) stimulation of the NF-κB signaling pathway is essential in osteoclastogenesis. The aim of the present study was to investigate the novel effects of carnosol, an active compound found in Rosmarinus officinalis, on RANKL-induced osteoclastogenesis both in vitro and in vivo. TRAP staining showed that carnosol significantly inhibited osteoclasts differentiation of bone marrow monocytes and RAW264.7 cells. Western blot results showed that the protein expression levels of osteoclastogenesis-associated genes, including cathepsin K, tartrate-resistant acid phosphatase and MMP-9, were markedly inhibited by carnosol, which may have suppressed osteoclast function. Furthermore, western blot and immunofluorescent staining results revealed that carnosol markedly suppressed the phosphorylation of p65 induced by RANKL and blocked its nuclear translocation, indicating the suppression of NF-κB signaling pathway. H&E staining and micro-CT results showed that in vivo treatment with carnosol significantly attenuated ovariectomy-induced bone loss in mice. In conclusion, the present study indicated that carnosol may suppress osteoclastogenesis both in vivo and in vitro by inhibiting the activation of the NF-κB signaling pathway. Carnosol may therefore be a potential novel therapeutic candidate for the clinical treatment of osteoclast-related disorders.
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Affiliation(s)
- Pan Cai
- Department of Orthopedics, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, P.R. China
| | - Shichang Yan
- Department of Orthopedics, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu 210019, P.R. China
| | - Yan Lu
- Department of Laboratory Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, P.R. China
| | - Xiaoxiao Zhou
- Department of Orthopedics, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, P.R. China
| | - Xiuhui Wang
- Department of Orthopedics, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, P.R. China
| | - Minghui Wang
- Department of Orthopedics, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, P.R. China
| | - Zhifeng Yin
- Department of Orthopedics, Shanghai Zhongye Hospital, Shanghai 200941, P.R. China
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15
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Zhang Y, Zhang Y, Zhao Y, Wu W, Meng W, Zhou Y, Qiu Y, Li C. Protection against ulcerative colitis and colorectal cancer by evodiamine via anti‑inflammatory effects. Mol Med Rep 2022; 25:188. [PMID: 35362542 PMCID: PMC8985202 DOI: 10.3892/mmr.2022.12704] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/15/2022] [Indexed: 01/08/2023] Open
Abstract
Evodiamine (Evo) is an alkaloid that can be extracted from the berry fruit Evodia rutaecarpa and has been reported to exert various pharmacological effects, such as antidiarrheal, antiemetic and antiulcer effects. In vivo, the potential effects of Evo were investigated in a mouse model of dextran sodium sulfate (DSS)‑induced ulcerative colitis (UC) and in adenomatous polyposis coli (Apc)MinC/Gpt C57BL/6 mice with colorectal cancer (CRC), where the latter harbours a point‑mutation in the Apc gene. Evo suppressed the degree of weight loss and colon shortening induced by DSS, decreased the disease activity index value and ameliorated the pathological alterations in the colon of mice with UC as examined via H&E staining of colon tissues. In addition, Evo decreased the number and size of colonic tumors in ApcMinC/Gpt mice. Proteomics (colon tissues), ELISA (colon tissues and serum) and western blotting (colon tissues) results revealed that Evo inhibited NF‑κB to mediate the levels of various cytokines, including, in the DSS‑induced UC model, IL‑1β, IL‑2, IL‑6, IL‑8, TNF‑α, IFN‑γ (ELISA of colon tissues and serum), NF‑κB, IKKα+β, IκBα, S100a9, TLR4 and MyD88 (western blotting of colon tissues), and, in the colorectal cancer model, IL‑1β, IL‑2, IL‑6, IL‑15, IL‑17, IL‑22, TNF‑α (ELISA of colon tissues and serum), NF‑κB, IKKα+β, IκBα and S100a9 (western blotting of colon tissues), to achieve its anti‑inflammatory and antitumor effects. In vitro, Evo also reduced the viability of the colon cancer cell line SW480, inhibited mitochondrial membrane potential (MMP detection), caused G2/M‑phase arrest (cell cycle detection) and suppressed the translocation of phosphorylated‑NF‑κB from the cytoplasm into the nucleus (immunofluorescence of p‑NF‑κB). Theoretical evidence (MD simulations) suggest that Evo may bind to the ordered domain (α‑helix) of NF‑κB to influence this protein. The protein secondary structure changes were analyzed by the cpptraj module in Amber. In addition, these data provide experimental evidence that Evo may be an effective agent for treating UC and CRC.
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Affiliation(s)
- Yongfeng Zhang
- School of Life Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yaqin Zhang
- School of Life Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yang Zhao
- Department of Pharmacy, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Wanyue Wu
- School of Life Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Weiqi Meng
- School of Life Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yulin Zhou
- School of Life Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Ye Qiu
- Department of Pharmacy, Changchun University of Chinese Medicine, Changchun, Jilin 130119, P.R. China
| | - Chenliang Li
- School of Life Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
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16
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Gao X, Kang X, Lu H, Xue E, Chen R, Pan J, Ma J. Piceatannol suppresses inflammation and promotes apoptosis in rheumatoid arthritis‑fibroblast‑like synoviocytes by inhibiting the NF‑κB and MAPK signaling pathways. Mol Med Rep 2022; 25:180. [PMID: 35322865 PMCID: PMC8972314 DOI: 10.3892/mmr.2022.12696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/05/2022] [Indexed: 11/09/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that mainly targets the synovial membrane, thus causing stiffness, deformity and dysfunction of joints. To date, no effective anti-inflammatory treatments are available for RA. Piceatannol (PIC) is a natural derivative of resveratrol, which has been reported to attenuate the inflammatory response. To evaluate the effect of PIC on RA and to determine the underlying molecular target of PIC, both in vitro and in vivo experiments were performed in the present study. A CIA rat model was established to evaluate the therapeutic effects of PIC. TNF-α, IL-1β and IL-6 levels in blood were measured by ELISA. Western blotting, immunofluorescence analysis and reverse transcription-quantitative PCR (RT-qPCR) were used to analyze the expression levels of protein and mRNA. In vitro, RA-fibroblast-like synoviocytes (FLSs) were pretreated with PIC and subsequently stimulated with TNF-α. The results revealed that PIC significantly upregulated the expression levels of proapoptotic proteins such as Bax and cleaved caspase-3. PIC also significantly reduced the production of proinflammatory cytokines, including PGE2, IL-6 and IL-1β, and significantly downregulated the expression of cyclooxygenase-2 at both the mRNA and protein expression levels. Furthermore, PIC downregulated the expression of MMP-3 and MMP-13, which have been found to be highly expressed in the synovium of patients with RA. Mechanistically, PIC was capable of significantly downregulating the expression levels of proteins involved in the NF-κB and MAPK signaling pathways. The results of the in vivo experiments using a rat collagen-induced arthritis model demonstrated that PIC decreased the arthritis score and exerted beneficial effects in cartilage and significantly reduced the expression of MMP-13. In conclusion, the findings of the present study revealed that PIC could suppress the inflammatory response, promote apoptosis, and exert a significant regulatory effect on the NF-κB and MAPK signaling pathways in RA-FLSs. Therefore, PIC may represent a potential drug for the future treatment of RA.
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Affiliation(s)
- Xuezhong Gao
- Department of Cardiovascular Disease, People's Hospital of Aksu, Aksu, Xinjiang 843000, P.R. China
| | - Xiaodiao Kang
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Hongwei Lu
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Enxing Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Rong Chen
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Jun Pan
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Jianfeng Ma
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
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17
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Wang L, Meng J, Wang C, Wang Y, Yang C, Li Y. Hydrogen sulfide attenuates cigarette smoke‑induced pyroptosis through the TLR4/ NF‑κB signaling pathway. Int J Mol Med 2022; 49:56. [PMID: 35234268 DOI: 10.3892/ijmm.2022.5112] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 02/11/2022] [Indexed: 11/06/2022] Open
Abstract
Pyroptosis, a type of programmed cell death mediated by caspases‑1 or ‑11, may play an important role in airway epithelial injury and airway remodeling, thereby promoting the occurrence of asthma and chronic obstructive pulmonary disease (COPD). Studies have suggested that hydrogen sulfide (H2S) plays a protective role against COPD by inhibiting the activation of the NLR family pyrin domain containing 3 (NLRP3) inflammasome. The present study established a rat model of cigarette smoke (CS)‑induced COPD to observe the effects of H2S on cell pyroptosis. A 16HBE cell model was also used to further examine the effects of H2S on the Toll‑like receptor 4 (TLR4)/NF‑κB signaling pathway is affected by, and to determine the underlying mechanisms. The results revealed that cell pyroptosis was significantly promoted in the model of CS‑induced COPD. The cellular experiments also revealed that CS induced the pyroptosis of the cells in a NLRP3/gasdermin D (GSDMD)‑dependent manner. In addition, H2S significantly attenuated the effects of CS extract (CSE) on pyroptosis, cell viability and the expression levels of pyroptosis‑related proteins, indicating that H2S inhibited pyroptosis by decreasing NLRP3 expression and promoting GSDMD activation. It was also identified that CSE activated TLR4 protein in 16HBE cells, while this was inhibited by H2S. Furthermore, TLR4 and NF‑κB overexpression significantly abolished the effects of H2S on cell pyroptosis. On the whole, the findings of the present study demonstrate the role of pyroptosis in the development of COPD and provide an experimental basis for the use of H2S and drugs targeting the TLR4/NF‑κB pathway to exert protective effects against COPD.
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Affiliation(s)
- Liang Wang
- Department of Respiratory and Critical Care, Hebei Chest Hospital, Shijiazhuang, Hebei 050048, P.R. China
| | - Jing Meng
- Department of Respiratory and Critical Care, Hebei Chest Hospital, Shijiazhuang, Hebei 050048, P.R. China
| | - Caicai Wang
- Department of Respiratory and Critical Care, Hebei Chest Hospital, Shijiazhuang, Hebei 050048, P.R. China
| | - Yuan Wang
- Department of Respiratory and Critical Care, Hebei Chest Hospital, Shijiazhuang, Hebei 050048, P.R. China
| | - Chao Yang
- Department of Gynecology, Shijiazhuang Second Hospital, Shijiazhuang, Hebei 050048, P.R. China
| | - Yujing Li
- Laboratory of Medicine, Hebei Chest Hospital, Shijiazhuang, Hebei 050048, P.R. China
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18
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Ueda G, Matsuo Y, Murase H, Aoyama Y, Kato T, Omi K, Hayashi Y, Imafuji H, Saito K, Tsuboi K, Morimoto M, Ogawa R, Takahashi H, Mitsui A, Kimura M, Takiguchi S. 10Z‑Hymenialdisine inhibits angiogenesis by suppressing NF‑κB activation in pancreatic cancer cell lines. Oncol Rep 2022; 47:48. [PMID: 35014682 PMCID: PMC8771196 DOI: 10.3892/or.2022.8259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/08/2021] [Indexed: 12/24/2022] Open
Abstract
10Z-Hymenialdisine is a natural product derived from the marine sponge Axinella carteri. 10Z-Hymenialdisine has anti-inflammatory effects exerted through NF-κB; however, it is unclear whether 10Z-Hymenialdisine has anti-angiogenic effects in cancer cells. In the present study, both the anti-angiogenic and antimetastatic effects of this compound in pancreatic cancer were investigated. It was initially confirmed that 10Z-Hymenialdisine significantly inhibited the proliferation of pancreatic cancer cells. Next, using both reverse transcription-quantitative PCR and ELISA, it was demonstrated that 10Z-Hymenialdisine significantly suppressed the expression of VEGF and IL-8 mRNAs and proteins in pancreatic cancer. Immunohistochemical analysis revealed that 10Z-Hymenialdisine inhibited NF-κB activity in pancreatic cancer cell lines. It was also identified that 10Z-Hymenialdisine inhibited tube formation in EA.hy926 cells. In vivo, 10Z-Hymenialdisine significantly inhibited the growth of BxPC-3 pancreatic cancer cells that were subcutaneously injected into model mice. In conclusion, the present study demonstrated that 10Z-Hymenialdisine exerted anti-angiogenic effects by suppressing NF-κB activity and angiogenic factors, such as VEGF and IL-8, in pancreatic cancer cell lines. 10Z-Hymenialdisine has potential applications as a novel therapeutic agent for the treatment of pancreatic cancer.
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Affiliation(s)
- Goro Ueda
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Yoichi Matsuo
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Hiromichi Murase
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Yoshinaga Aoyama
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Tomokatsu Kato
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Kan Omi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Yuichi Hayashi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Hiroyuki Imafuji
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Kenta Saito
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Ken Tsuboi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Mamoru Morimoto
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Ryo Ogawa
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Hiroki Takahashi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
| | - Akira Mitsui
- Department of Gastroenterological Surgery, Nagoya City University West Medical Center, Kita‑ku, Nagoya, Aichi 462-8508, Japan
| | - Masahiro Kimura
- Department of Gastrointestinal Surgery, Nagoya City East Medical Center, Chikusa‑ku, Nagoya, Aichi 464-8547, Japan
| | - Shuji Takiguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Mizuho‑cho, Mizuho‑ku, Nagoya, Aichi 467-8601, Japan
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Kim SM, Min JH, Kim JH, Choi J, Park JM, Lee J, Goo SH, Oh JH, Kim SH, Chun W, Ahn KS, Kang S, Lee JW. Methyl p‑hydroxycinnamate exerts anti‑inflammatory effects in mouse models of lipopolysaccharide‑induced ARDS. Mol Med Rep 2021; 25:37. [PMID: 34859262 PMCID: PMC8669673 DOI: 10.3892/mmr.2021.12553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 11/22/2021] [Indexed: 12/27/2022] Open
Abstract
Methyl p-hydroxycinnamate (MH), an esterified derivative of p-Coumaric acid exerts anti-inflammatory effects on lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Based on these effects, the present study investigated the protective role of MH in a mouse model of LPS-induced acute respiratory distress syndrome (ARDS). The results demonstrated that administration of LPS (5 mg/kg intranasally) markedly increased the neutrophil/macrophage numbers and levels of inflammatory molecules (TNF-α, IL-6, IL-1β and reactive oxygen species) in the bronchoalveolar lavage fluid (BALF) of mice. On histological examination, the presence of inflammatory cells was observed in the lungs of mice administered LPS. LPS also notably upregulated the secretion of monocyte chemoattractant protein-1 and protein content in BALF as well as expression of inducible nitric oxide synthase in the lungs of mice; it also caused activation of p38 mitogen-activated protein kinase (MAPK) and NF-κB signaling. However, MH treatment significantly suppressed LPS-induced upregulation of inflammatory cell recruitment, inflammatory molecule levels and p38MAPK/NF-κB activation, and also led to upregulation of heme oxygenase-1 (HO-1) expression in the lungs of mice. In addition, the ability of MH to induce HO-1 expression was confirmed in RAW264.7 macrophages. Taken together, the findings of the present study indicated that MH may exert protective effects against airway inflammation in ARDS mice by inhibiting inflammatory cell recruitment and the production of inflammatory molecules.
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Affiliation(s)
- Seong-Man Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Jae-Hong Min
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Jung Hee Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Jinseon Choi
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Jin-Mi Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Juhyun Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Soo Hyeon Goo
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Jae Hoon Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Seung-Ho Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kyung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Sukmo Kang
- Biotoxtech Co., Ltd., Ochang, Cheongju, Chungcheongbuk‑do 28115, Republic of Korea
| | - Jae-Won Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
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20
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Wu Q, Li Q, Zhu W, Zhang X, Li H. Epsin 3 potentiates the NF‑κB signaling pathway to regulate apoptosis in breast cancer. Mol Med Rep 2021; 25:15. [PMID: 34779498 PMCID: PMC8600415 DOI: 10.3892/mmr.2021.12531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 09/22/2021] [Indexed: 11/25/2022] Open
Abstract
Endocrine drug resistance is common in some patients with estrogen receptor (ER)-positive breast cancer, so it is necessary to identify potential therapeutic targets. The aim of the present study was to investigate the regulatory effect and mechanism of epsin 3 (EPN3) expression level changes on the proliferation and apoptosis of ER-positive breast cancer. Online GEPIA was used to analyze the expression level of EPN3 in breast cancer. The online Kaplan-Meier plotter tool was used to analyze the relationship between EPN3 expression and the prognosis of patients with breast cancer. Reverse transcription-quantitative PCR, immunohistochemistry and western blotting were performed to detect the mRNA and protein expression levels of EPN3 in breast cancer tissues and cells. A lentiviral infection system was used to knockdown the expression of EPN3 in breast cancer cell lines. Cell Counting Kit-8 and flow cytometry assays were conducted to detect the effect of EPN3 knockdown on breast cancer cell proliferation and apoptosis. Western blotting was used to detect the regulation of EPN3 expression on NF-κB, and immunofluorescence was performed to detect the effect of EPN3 expression on NF-κB nuclear translocation. The results demonstrated that the expression level of EPN3 in breast cancer tissues was higher compared with that in adjacent tissues (P<0.05). The expression level of EPN3 in the ER-positive breast cancer cell line, MCF7, was higher compared with that in the other cell lines (MCF10A, ZR75-1, MDA-MB-231, BT549 and SK-BR-3). After knocking down the expression of EPN3 in MCF7 cells, the proliferative ability of the cells was decreased, and the apoptosis rate was increased (P<0.05). After EPN3 knockdown in MCF7 cells, the phosphorylation of NF-κB was decreased (P<0.05), and the nuclear translocation signal was weakened. Thus, it was suggested that EPN3 promoted cell proliferation and inhibited cell apoptosis by regulating the NF-κB signaling pathway in ER-positive breast cancer.
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Affiliation(s)
- Qianxue Wu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Qing Li
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Wenming Zhu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xiang Zhang
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Hongyuan Li
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing 400016, P.R. China
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21
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Min GY, Kim EY, Hong S, Kim JH, Kim M, Kim EJ, Park JH, Sohn Y, Jung HS. Lycopus lucidus Turcz ameliorates DNCB‑induced atopic dermatitis in BALB/c mice. Mol Med Rep 2021; 24:827. [PMID: 34581418 PMCID: PMC8503738 DOI: 10.3892/mmr.2021.12467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 07/28/2021] [Indexed: 12/12/2022] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory allergic skin disease, characterized by pruritic and eczematous skin lesions. Lycopus lucidus Turcz (LLT) is a perennial herb that has been reported to have various biological properties, including effects on blood circulation, as well as anti-inflammatory, antioxidant, anti-vascular inflammation and wound-healing effects. However, whether LLT improves dermatitis and the underlying mechanisms has yet to be determined. The aim of the present study was to determine whether LLT can improve 2,4-dinitrochlorobenzene (DNCB)-induced dermatitis and to verify the inhibitory effect of LLT on the expression of chemokines and pro-inflammatory cytokines in the HaCaT immortalized keratinocyte cell line. In addition, the anti-inflammatory function of LLT in RAW264.7 mouse macrophages was investigated. In the DNCB-induced AD mouse model, LLT inhibited infiltration by mast cells, eosinophils and CD8+ cells in the dorsal skin tissue of AD mice, and suppressed the expression of IgE and IL-6 in serum. In addition, LLT inhibited the phosphorylation of ERK and JNK, as well as NF-κB in skin tissue. In the HaCaT cell model induced by TNF-α/IFN-γ, LLT inhibited the expression of thymus and activation-regulated chemokine, granulocyte-macrophage colony-stimulating factor, monocyte chemoattractant protein-1, TNF-α and IL-1β, whilst inhibiting the phosphorylation of NF-κB. In addition, in the lipopolysaccharide-induced RAW 264.7 cell inflammation model, LLT inhibited the expression of TNF-α and IFN-γ, the nuclear translocation of NF-κB and the phosphorylation of ERK and JNK. These results suggested that LLT may be a promising candidate for the treatment of inflammatory dermatitis.
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Affiliation(s)
- Ga-Yul Min
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Eun-Young Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sooyeon Hong
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jae-Hyun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Minsun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Eom Ji Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jae Ho Park
- Department of Pharmaceutical Science, Jungwon University, Goesan, Chungbuk 28024, Republic of Korea
| | - Youngjoo Sohn
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyuk-Sang Jung
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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22
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Xie W, Huang W, Cai S, Chen H, Fu W, Chen Z, Liu Y. NF‑κB/IκBα signaling pathways are essential for resistance to heat stress‑induced ROS production in pulmonary microvascular endothelial cells. Mol Med Rep 2021; 24:814. [PMID: 34558646 PMCID: PMC8477608 DOI: 10.3892/mmr.2021.12454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 09/10/2021] [Indexed: 12/14/2022] Open
Abstract
The results of a previous study demonstrated that heat stress (HS) triggered oxidative stress, which in turn induced the apoptosis of epithelial cells. These results uncovered a novel mechanism underlying the activation of NF-κB in primary human umbilical vein endothelial cells. The present study aimed to further investigate the role of NF-κB/IκBα signaling pathways in the inhibition of HS-induced reactive oxygen species (ROS) generation and cytotoxicity in endothelial cells. The results of the present study demonstrated that HS triggered a significant amount of NF-κB and IκBα nuclear translocation without IκBα degradation in a time-dependent manner. Mutant constructs of IκBα phosphorylation sites (Ser32, Ser36) were employed in rat pulmonary microvascular endothelial cells (PMVECs). Cell Counting Kit-8 assays demonstrated that both the small interfering (si)RNA-mediated knockdown of p65 and IκBα mutant constructs significantly decreased cell viability and aggravated ROS accumulation in HS-induced rat PMVECs compared with the control. Additionally, western blot analysis revealed that p65 siRNA attenuated the protein expression of IκBα. However, IκBα mutant constructs failed to attenuate NF-κB activation and nuclear translocation, indicating that IκBα-independent pathways contributed to NF-κB activity and nucleus translocation in a time-dependent manner following HS. Collectively, the results of the present study suggested that the NF-κB/IκBα pathway was essential for resistance to HS-induced ROS production and cytotoxicity in rat PMVECs, and that it could be a potential therapeutic target to reduce the mortality and morbidity of heat stroke.
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Affiliation(s)
- Weidang Xie
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Wei Huang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Shumin Cai
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Hui Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Weijun Fu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zhongqing Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Yanan Liu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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23
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Abstract
Laryngopharyngeal reflux, a variant of gastroesophageal reflux disease, has been considered a risk factor in the development of hypopharyngeal cancer. Bile acids are frequently present in the gastroesophageal refluxate and their effect has been associated with inflammatory and neoplastic changes in the upper aerodigestive tract. Recent in vitro and in vivo studies have provided direct evidence of the role of acidic bile refluxate in hypopharyngeal carcinogenesis and documented the crucial role of NF-κB as a key mediator of early oncogenic molecular events in this process and also suggested a contribution of STAT3. Acidic bile can cause premalignant changes and invasive squamous cell cancer in the affected hypopharynx accompanied by DNA damage, elevated p53 expression and oncogenic mRNA and microRNA alterations, previously linked to head and neck cancer. Weakly acidic bile can also increase the risk for hypopharyngeal carcinogenesis by inducing DNA damage, exerting anti-apoptotic effects and causing precancerous lesions. The most important findings that strongly support bile reflux as an independent risk factor for hypopharyngeal cancer are presented in the current review and the underlying mechanisms are provided.
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Affiliation(s)
- Dimitra P Vageli
- The Yale Larynx Laboratory, Department of Surgery, Yale School of Medicine, New Haven, CT 06510, USA
| | - Sotirios G Doukas
- The Yale Larynx Laboratory, Department of Surgery, Yale School of Medicine, New Haven, CT 06510, USA
| | - Panagiotis G Doukas
- The Yale Larynx Laboratory, Department of Surgery, Yale School of Medicine, New Haven, CT 06510, USA
| | - Benjamin L Judson
- The Yale Larynx Laboratory, Department of Surgery, Yale School of Medicine, New Haven, CT 06510, USA
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24
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Wei J, Chen L, Wang D, Tang L, Xie Z, Chen W, Zhang S, Weng G. Upregulation of RIP3 promotes necroptosis via a ROS‑dependent NF‑κB pathway to induce chronic inflammation in HK‑2 cells. Mol Med Rep 2021; 24:783. [PMID: 34498705 PMCID: PMC8441977 DOI: 10.3892/mmr.2021.12423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/10/2021] [Indexed: 11/29/2022] Open
Abstract
Tubular atrophy/interstitial fibrosis (TA/IF) is a major cause of late allograft loss, and inflammation within areas of TA/IF is associated with adverse outcomes in kidney transplantation. However, there is currently no satisfactory method to suppress this inflammation to improve TA/IF. The present study aimed to determine the proinflammatory role of receptor-interacting protein 3 (RIP3) in TA/IF to discover a novel therapeutic target. Reverse transcription-quantitative PCR and western blotting were performed to detect the expression of RIP3 and inflammation-associated factors. Lactate dehydrogenase release assay was used to determine necroptosis. Fluorescent 2,7-dichlorodihydrofluorescein diacetate was used to detect the levels of reactive oxygen species (ROS). The results demonstrated that patients with chronic TA/IF exhibited upregulated receptor-interacting protein 3 (RIP3) expression compared with the patients who had a favorable recovery after renal transplant. Therefore, the current study used normal renal tubular epithelial cells HK-2 to establish a cellular model with a high expression level of RIP3 in order to investigate the effect of RIP3 on renal epithelial cells after transplantation. The western blotting results demonstrated that overexpression of RIP3 could significantly increase the phosphorylation level of the necroptosis executive molecule mixed lineage kinase domain-like protein. Lactate dehydrogenase release, a key feature of necroptosis, was also markedly improved by RIP3 overexpression. Moreover, a higher inflammatory response was detected in HK-2 cells with RIP3 overexpression, and this elevated inflammation could be restored by the necroptosis inhibitor necrosulfonamide. Of note, it was found that overexpression of RIP3 activated the NF-κB signaling pathway via the excessive accumulation of ROS to induce necroptosis, which ultimately led to inflammation. Collectively, these findings indicated that overexpression of RIP3 promoted necroptosis via a ROS-dependent NF-κB pathway to induce chronic inflammation, suggesting that RIP3 may have the potential to be a therapeutic target against inflammation in TA/IF.
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Affiliation(s)
- Junjun Wei
- Department of Renal Transplantation, Ningbo Urology and Nephrology Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Liangliang Chen
- Department of Renal Transplantation, Ningbo Urology and Nephrology Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Duidui Wang
- Department of Renal Transplantation, Ningbo Urology and Nephrology Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Li Tang
- Department of Renal Transplantation, Ningbo Urology and Nephrology Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Zhenhua Xie
- Department of Renal Transplantation, Ningbo Urology and Nephrology Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Weifeng Chen
- Department of Renal Transplantation, Ningbo Urology and Nephrology Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Shuwei Zhang
- Department of Renal Transplantation, Ningbo Urology and Nephrology Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Guobin Weng
- Department of Renal Transplantation, Ningbo Urology and Nephrology Hospital, Ningbo, Zhejiang 315100, P.R. China
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25
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Renfeng Q, Shuxiao C, Peixian G, Kun L, Xuedong F, Hai Y, Xuejun W, Gang L. ADAM10 attenuates the development of abdominal aortic aneurysms in a mouse model. Mol Med Rep 2021; 24:774. [PMID: 34490486 PMCID: PMC8456315 DOI: 10.3892/mmr.2021.12414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 07/23/2021] [Indexed: 01/24/2023] Open
Abstract
An abdominal aortic aneurysm (AAA) is a life-threatening disease associated with a high mortality rate. At present, surgery or minimally invasive interventions are used in clinical treatment, especially for small aneurysms. However, the benefits of surgical repair are not obvious, and AAA ruptures can be prevented by aneurysm therapy to inhibit the growth of small aneurysms. Therefore, evaluating effective drugs to treat small AAAs is urgently required. Chronic inflammation is the main pathological feature of aneurysmal tissues. The aim of the present study was to investigate the protective role and underlying mechanism of ADAM metallopeptidase domain 10 (ADAM10). In the present study, a mouse model of AAA was established via porcine pancreatic elastase perfusion for 5 min per day for 14 days. ADAM10 (6 mg/kg) was injected intraperitoneally following 3 days of porcine pancreatic elastase perfusion in the ADAM10 group and the treatment continued for 10 days. The maximum inner luminal diameters of the infrarenal abdominal aortas were measured using an animal ultrasound system. The levels of high mobility group box 1 (HMGB1) and soluble receptor for advanced glycosylation end products in serum samples were measured by ELISA. Hematoxylin and eosin and elastin van Gieson staining were performed to observe morphology, integrity of the elastin layers and elastin degradation. CD68 expression was detected by immunohistochemical staining. Reverse transcription-quantitative PCR and western blotting were used for detection of mRNA and protein levels. The gelatinolytic activities of MMP-2 and MMP-9 were quantified via gelatin zymography analysis. These results showed that ADAM10 inhibited HMGB1/RAGE/NF-κB signaling and MMP activity in the pathogenesis of pancreatic elastase-induced AAA, which provide insight into the molecular mechanism of AAA and suggested that ADAM10 may be a potential therapeutic target for AAA.
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Affiliation(s)
- Qiu Renfeng
- Department of Vascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Chen Shuxiao
- Department of Vascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Gao Peixian
- Department of Vascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Luo Kun
- Department of Vascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Feng Xuedong
- Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Yuan Hai
- Department of Vascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Wu Xuejun
- Department of Vascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Li Gang
- Department of Vascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
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26
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Yuan M, Jing G, Kong Q, Ming T, Song X, Wu X. Tumor necrosis factor α‑induced protein 8‑like 2 contributes to penehyclidine hydrochloride pretreatment against lipopolysaccharide‑induced acute lung injury in a mouse model. Mol Med Rep 2021; 24:750. [PMID: 34468006 DOI: 10.3892/mmr.2021.12390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/12/2021] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to investigate the effect of penehyclidine hydrochloride (PHC) pretreatment on mice with lipopolysaccharide (LPS)‑induced acute lung injury (ALI) and its possible underlying mechanisms. Mice were randomly separated into six groups: i) Sham group; ii) LPS group; iii) LPS + PHC group; iv) tumor necrosis factor a‑induced protein 8‑like protein 2 (TIPE2) group; v) LPS + TIPE2 group; and vi) LPS + TIPE2 + PHC group. The ALI model was induced using LPS through intratracheal injection. The mice received adenovirus gene to induce the overexpression of TIPE2. After mice were sacrificed, lung injury indices were assessed, and arterial blood, bronchoalveolar lavage fluid and lung tissues were collected for subsequent assays. Expression levels of related proteins were detected by using western blotting. It was found that compared with the sham group, the mice treated with LPS showed increased lung injury and dysfunctions of gas exchange. However, these trends were significantly ameliorated in the LPS + PHC group. Evaluation of protein expression in lung tissues showed that the increased expression of nuclear NF‑κB p65 and p‑c‑Jun N‑terminal kinase (JNK) induced by LPS were suppressed in the LPS + PHC group and the expression of TIPE2 was increased. The mice that received adenovirus gene to induce TIPE2 overexpression could also showed protective effects compared with the mice in the LPS group. However, the expression of TIPE2 decreased rather than increased in LPS group. In the mice pretreated with PHC, the expression of TIPE2 increased in mice with LPS‑induced ALI. To conclude, PHC pretreatment could inhibit the occurrence of inflammation and apoptosis in LPS‑induced ALI. This process may be related to the activation of TIPE2 and the inhibition of NF‑κB and JNK signaling pathway in the lungs of mice.
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Affiliation(s)
- Min Yuan
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Guoqing Jing
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Qian Kong
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Tingqian Ming
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xuemin Song
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xiaojing Wu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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27
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Liu C, Huang XL, Liang JP, Zhong X, Wei ZF, Dai LX, Wang J. Serum‑derived exosomes from house dust mite‑sensitized guinea pigs contribute to inflammation in BEAS‑2B cells via the TLR4‑ NF‑κB pathway. Mol Med Rep 2021; 24:747. [PMID: 34458929 PMCID: PMC8436231 DOI: 10.3892/mmr.2021.12387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/21/2021] [Indexed: 11/22/2022] Open
Abstract
Airway epithelial cells, which are the first physical defense barrier against allergens, play a pivotal role in immunity, airway inflammation and airway remodeling. The damage and dysfunction of these cells trigger the development of airway inflammatory diseases. Exosomes, which exist in various bodily fluids, mediate cell-cell communication and participate in the immune response process. The present study aimed to investigate whether serum exosomes play a pro-inflammatory role in bronchial epithelial cells (BEAS-2B cells) and, if so, explore the underlying molecular mechanisms. A guinea pig model of House dust mite (HDM)-induced asthma was established by sensitizing the rodents with HDM and PBS, and serum-derived exosomes were harvested. It was found that serum-derived exosomes from HDM-sensitized guinea pigs displayed higher levels of exosomal markers than those from controls. Additionally, western blot analysis and reverse transcription-quantitative PCR indicated that serum-derived exosomes from HDM-sensitized guinea pigs carried heat shock protein 70 and triggered an inflammatory response in BEAS-2B cells via the toll-like receptor 4 (TLR4)-NF-κB pathway. However, TAK-242, an inhibitor of the expression of TLR4, blocked the activation of the TLR4-NF-κB pathway. These findings provided a novel mechanism for exosome-mediated inflammatory responses and a new perspective for the intervention of inflammatory airway disorders.
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Affiliation(s)
- Chao Liu
- Department of Respiratory Disease, Zhongshan People's Hospital, Zhongshan, Guangdong 528403, P.R. China
| | - Xiao-Lin Huang
- Dental Implant and Restoration Centre, Zhongshan People's Hospital, Zhongshan, Guangdong 528403, P.R. China
| | - Jian-Ping Liang
- Department of Respiratory Disease, Zhongshan People's Hospital, Zhongshan, Guangdong 528403, P.R. China
| | - Xu Zhong
- The Second Department of Respiratory Disease, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zi-Feng Wei
- The Second Department of Respiratory Disease, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Li-Xue Dai
- The Second Department of Respiratory Disease, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Jun Wang
- The Second Department of Respiratory Disease, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Cong C, Yuan X, Hu Y, Chen W, Wang Y, Tao L. Sinigrin attenuates angiotensin II‑induced kidney injury by inactivating nuclear factor‑κB and extracellular signal‑regulated kinase signaling in vivo and in vitro. Int J Mol Med 2021; 48:161. [PMID: 34278443 PMCID: PMC8262655 DOI: 10.3892/ijmm.2021.4994] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/02/2021] [Indexed: 11/05/2022] Open
Abstract
The present study investigated the function of sinigrin in angiotensin II (Ang II)‑induced renal damage. The results demonstrated that systolic blood pressure (SBP) and diastolic blood pressure (DBP) were increased in Ang II‑challenged rats, and sinigrin treatment inhibited their increase. The levels of blood urea nitrogen (BUN) and serum creatinine (SCR) were increased by Ang II in the rats, and these were reversed by sinigrin in a dose‑dependent manner. In addition, the Ang II‑induced elevation of urinary protein levels was inhibited by sinigrin treatment. Glomerular basement membrane thickness and ECM degradation markers, such as collagen I, collagen IV and fibronectin, were suppressed by sinigrin in the Ang II‑challenged rats. Moreover, the levels of inflammatory regulators, including tumor necrosis factor‑α (TNF‑α), interleukin‑6 (IL‑6) and monocyte chemoattractant protein‑1 (MCP‑1), were reduced following sinigrin treatment of the Ang II‑challenged rats and in Ang II‑exposed proximal tubule epithelial cells. Furthermore, the superoxide dismutase (SOD) and catalase (CAT) levels were downregulated, whereas the malondialdehyde (MDA) levels were upregulated by Ang II; these effects were reversed by sinigrin treatment in vivo and in vitro. Mechanistically, sinigrin inhibited the Ang II‑induced phosphorylation of ERK, p65 and IκBα. Thus, sinigrin attenuated Ang II‑induced renal injury by inactivating ERK and NF‑κB signaling. Sinigrin may thus prove to be a potential candidate for the treatment of hypertension‑induced kidney damage.
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Affiliation(s)
- Cong Cong
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
| | - Xiaohong Yuan
- Department of Traumatic Orthopaedics, The Third Affiliated Hospital of Shandong First Medical University (Affiliated Hospital of Shandong Academy of Medical Sciences), Jinan, Shandong 250031, P.R. China
| | - Ying Hu
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
| | - Wenjing Chen
- Department of Science and Technology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
| | - Yong Wang
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
| | - Lei Tao
- Department of Nephrology, The Third Affiliated Hospital of Shandong First Medical University (Affiliated Hospital of Shandong Academy of Medical Sciences), Jinan, Shandong 250031, P.R. China
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Zhang Q, Wang L, Wu M, Liu X, Zhu Y, Zhu J, Xing C. Humanized anti‑TLR4 monoclonal antibody ameliorates lipopolysaccharide‑related acute kidney injury by inhibiting TLR4/ NF‑κB signaling. Mol Med Rep 2021; 24:608. [PMID: 34184086 PMCID: PMC8240183 DOI: 10.3892/mmr.2021.12245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 05/17/2021] [Indexed: 12/26/2022] Open
Abstract
A humanized anti‑Toll‑like receptor 4 (TLR4) monoclonal antibody (mAb) was previously produced using phage antibody library technology, and it was found that the mAb could effectively ameliorate lipopolysaccharide (LPS)‑induced damage in macrophages. The present study investigated the protective effects exerted by the humanized anti‑TLR4 mAb against LPS‑induced acute kidney injury (AKI), as well as the underlying mechanisms. Female C57BL/6 mice were randomly divided into four groups (n=8 per group): i) Control; ii) LPS; iii) LPS + humanized anti‑TLR4 mAb (1 µg/g); and iv) LPS + humanized anti‑TLR4 mAb (10 µg/g). Serum creatinine, blood urea nitrogen, IL‑6, TNFα and IL‑1β levels were then examined, followed by renal pathology assessment, immunohistochemical staining, reverse transcription‑quantitative PCR and western blotting to assess apoptosis/survival/inflammation‑related molecules and kidney injury molecule (KIM)‑1. The humanized anti‑TLR4 mAb successfully ameliorated LPS‑induced AKI and renal pathological damage. The humanized anti‑TLR4 mAb also dose‑dependently suppressed LPS‑induced elevations in serum IL‑6, TNFα and IL‑1β, and decreased the renal expression levels of myeloid differentiation primary response 88 (MyD88), IKKα/β, IκB, p65 and KIM‑1. Compared with the LPS group, renal Bax and KIM‑1 expression levels were significantly downregulated, and Bcl‑2 expression was notably upregulated by the humanized anti‑TLR4 mAb. Moreover, the humanized anti‑TLR4 mAb also significantly decreased the protein expression levels of MyD88, phosphorylated (p)‑IKKα/β, p‑IκB and p‑p65 in the renal tissues compared with the LPS group. Therefore, the present study indicated that the anti‑inflammatory effects of the humanized anti‑TLR4 mAb against LPS‑related AKI in mice were mediated via inhibition of the TLR4/NF‑κB signaling pathway.
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Affiliation(s)
- Qiuhua Zhang
- Department of Nephrology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Liang Wang
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Mian Wu
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Xiaobin Liu
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Yushan Zhu
- Department of Nephrology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Jin Zhu
- Key Laboratory of Antibody Technique of Ministry of Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
- Huadong Medical Institute of Biotechniques, Nanjing, Jiangsu 210000, P.R. China
| | - Changying Xing
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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Kawasaki H, Amano H. Anti‑inflammatory role of microRNA‑429 in human gingival epithelial cells‑inhibition of IL‑8 production through direct binding to IKKβ mRNA. Mol Med Rep 2021; 24:581. [PMID: 34132371 PMCID: PMC8223109 DOI: 10.3892/mmr.2021.12220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 05/06/2021] [Indexed: 12/18/2022] Open
Abstract
MicroRNAs (miRNAs), a family of small non‑coding RNAs, serve a pivotal role in the regulation of the inflammation by modulating the expression of various genes. However, the molecular mechanism by which miRNAs regulate inflammation‑associated molecules in oral epithelial cells remains to be elucidated. The present study examined the biological function of miR‑429 by performing the gain‑/loss‑of‑function studies of miR‑429 in a gingival squamous cell carcinoma line Ca9‑22 cells that either over‑ or under‑expressed miR‑429 through transient transfection with miR‑429 mimic or miR‑429 inhibitor, respectively. The results demonstrated that the over‑expression of miR‑429 suppressed the mRNA level of several interleukins, including IL‑8. In addition, the over‑expression of miR‑429 reduced IL‑8 secretion under the basal and TNF‑α stimulated conditions, whereas the secretion of IL‑8 was enhanced when miR‑429 was under‑expressed. The over‑expression of miR‑429 inhibited the activation of the transcription factor NF‑κB. Furthermore, we found that miR‑429 suppressed both mRNA and protein levels of IKKβ via its direct binding to the 3'‑untranslated region of IKKβ mRNA. In addition, the downregulation of IKKβ by small interfering RNA reduced both NF‑kB activity and IL‑8 production in Ca9‑22 cells. Taken together, the findings revealed the molecular mechanism of miR‑429 to regulate the inflammatory mediator in gingival cells and suggested that it could be useful as a therapeutic target of oral inflammatory diseases.
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Affiliation(s)
- Hiromichi Kawasaki
- Central Research Institute, Wakunaga Pharmaceutical Co. Ltd., Koda‑cho, Akitakata‑shi, Hiroshima 739‑1195, Japan
| | - Hirotaka Amano
- Central Research Institute, Wakunaga Pharmaceutical Co. Ltd., Koda‑cho, Akitakata‑shi, Hiroshima 739‑1195, Japan
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Qu Z, Lu X, Qu Y, Tao T, Liu X, Li X. Attenuation of the upregulation of NF‑κB and AP‑1 DNA‑binding activities induced by tunicamycin or hypoxia/reoxygenation in neonatal rat cardiomyocytes by SERCA2a overexpression. Int J Mol Med 2021; 47:113. [PMID: 33907834 PMCID: PMC8075284 DOI: 10.3892/ijmm.2021.4946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 03/29/2021] [Indexed: 12/20/2022] Open
Abstract
The present study aimed to investigate the effects of the overexpression of sarco/endoplasmic reticulum Ca2+‑ATPase (SERCA2a) on endoplasmic reticulum (ER) stress (ERS)‑associated inflammation in neonatal rat cardiomyocytes (NRCMs) induced by tunicamycin (TM) or hypoxia/reoxygenation (H/R). The optimal multiplicity of infection (MOI) was 2 pfu/cell. Neonatal Sprague‑Dawley rat cardiomyocytes cultured in vitro were infected with adenoviral vectors carrying SERCA2a or enhanced green fluorescent protein genes, the latter used as a control. At 48 h following gene transfer, the NRCMs were treated with TM (10 µg/ml) or subjected to H/R to induce ERS. The results of electrophoretic mobility shift assay (EMSA) revealed that overexpression of SERCA2a attenuated the upregulation of nuclear factor (NF)‑κB and activator protein‑1 (AP‑1) DNA‑binding activities induced by TM or H/R. Western blot analysis and semi‑quantitative RT‑PCR revealed that the overexpression of SERCA2a attenuated the activation of the inositol‑requiring 1α (IRE1α) signaling pathway and ERS‑associated apoptosis induced by TM. The overexpression of SERCA2a also decreased the level of phospho‑p65 (Ser536) in the nucleus, as assessed by western blot analysis. However, the overexpression of SERCA2a induced the further nuclear translocation of NF‑κB p65 and higher levels of tumor necrosis factor (TNF)‑α transcripts in the NRCMs, indicating the occurrence of the ER overload response (EOR). Therefore, the overexpression of SERCA2a has a 'double‑edged sword' effect on ERS‑associated inflammation. On the one hand, it attenuates ERS and the activation of the IRE1α signaling pathway induced by TM, resulting in the attenuation of the upregulation of NF‑κB and AP‑1 DNA‑binding activities in the nucleus, and on the other hand, it induces EOR, leading to the further nuclear translocation of NF‑κB and the transcription of TNF‑α. The preceding EOR may precondition the NRCMs against subsequent ERS induced by TM. Further studies using adult rat cardiomyocytes are required to prevent the interference of EOR. The findings of the present study may enhance the current understanding of the role of SERCA2a in cardiomyocytes.
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Affiliation(s)
- Zhigang Qu
- Medical School of Chinese PLA, Beijing 100853, P.R. China
- Department of General Practice, The 900th Hospital of The Joint Logistic Support Force, Fuzhou, Fujian 350025, P.R. China
| | - Xiaochun Lu
- Department of Cardiology, The Second Medical Center, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Yan Qu
- Department of Functional Examination, Penglai Traditional Chinese Medicine Hospital, Penglai, Shandong 265600, P.R. China
| | - Tianqi Tao
- Department of Pathophysiology, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Xiuhua Liu
- Department of Pathophysiology, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Xiaoying Li
- Department of Cardiology, The Second Medical Center, Chinese PLA General Hospital, Beijing 100853, P.R. China
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Cui C, Zhang D, Sun K, Li H, Xu L, Lin G, Guo Y, Hu J, Chen J, Nong L, Cai Y, Yu D, Yang W, Wang P, Sun Y. Propofol maintains Th17/Treg cell balance and reduces inflammation in rats with traumatic brain injury via the miR‑145‑3p/NFATc2/ NF‑κB axis. Int J Mol Med 2021; 48:135. [PMID: 34036377 PMCID: PMC8148094 DOI: 10.3892/ijmm.2021.4968] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 04/02/2021] [Indexed: 02/07/2023] Open
Abstract
Propofol is a commonly used intravenous anesthetic. The aim of the study was to examine the mechanism of propofol in traumatic brain injury (TBI) by regulating interleukin (IL)‑17 activity and maintaining the Th17/Treg balance. A rat model with moderate TBI was established using the weight‑drop method. Rats with TBI were regularly injected with propofol and their brain injuries were monitored. The peripheral blood of rats was collected to measure the Th17/Treg ratio. MicroRNA (miR)‑145‑3p expression was detected in the brain tissues of rats and antagomiR‑145‑3p was injected into the lateral ventricles of their brains to verify the effect of miR‑145‑3p on brain injury. The downstream target of miR‑145‑3p was predicted. The targeting relationship between miR‑145‑3p and nuclear factor of activated T cells c2 (NFATc2) was confirmed. NFATC2 expression and phosphorylation of NF‑κB pathway‑related proteins were measured. Propofol alleviated brain injury in rats with TBI and maintained the Th17/Treg balance. Propofol upregulated miR‑145‑3p expression in rat brains, while the inhibition of miR‑145‑3p reversed the effect of propofol on brain injury. A binding relationship was observed between miR‑145‑3p and NFATc2. Furthermore, propofol decreased the phosphorylation of p65 and IκBα, and inhibited activation of the NF‑κB pathway in the brains of rats with TBI. In conclusion, propofol maintained Th17/Treg balance and reduced inflammation in the rats with TBI via the miR‑145‑3p/NFATc2/NF‑κB axis.
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Affiliation(s)
- Can Cui
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Dengwen Zhang
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Ke Sun
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Haifeng Li
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Liqian Xu
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Gen Lin
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Yuanbo Guo
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Jiaqi Hu
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Jieyuan Chen
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Lidan Nong
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Yujin Cai
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Dongnan Yu
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Wei Yang
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Peng Wang
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Yi Sun
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
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Cho BO, Shin JY, Kang HJ, Park JH, Hao S, Wang F, Jang SI. Anti‑inflammatory effect of Chrysanthemum zawadskii, peppermint, Glycyrrhiza glabra herbal mixture in lipopolysaccharide‑stimulated RAW264.7 macrophages. Mol Med Rep 2021; 24:532. [PMID: 34036392 PMCID: PMC8170225 DOI: 10.3892/mmr.2021.12171] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 04/19/2021] [Indexed: 11/05/2022] Open
Abstract
The normal inflammatory reaction protects the body from harmful external factors, whereas abnormal chronic inflammation can cause various diseases, including cancer. The purpose of the present study was to investigate the anti‑inflammatory activity of a mixture of Chrysanthemum zawadskii, peppermint and Glycyrrhiza glabra (CPG) by analyzing the expression levels of inflammatory mediators, cytokines and transcription factors in lipopolysaccharide (LPS)‑stimulated Raw264.7 cells. A nitric oxide assay, ELISA, western blotting and immunofluorescence staining were performed to investigate the anti‑inflammatory activity of the CPG mixture. Pretreatment of Raw264.7 cells with CPG inhibited the increase of inflammatory mediators (inducible nitric oxide synthase, cyclooxygenase‑2 and IFN‑β) induced by LPS. Additionally, it inhibited the production of pro‑inflammatory cytokines (TNF‑α, IL‑6 and IL‑1β). CPG suppressed LPS‑induced phosphorylation of STAT1, AKT, Iκb and NF‑κB. Furthermore, CPG inhibited the translocation of NF‑κB into the nucleus. In summary, CPG could inhibit LPS‑induced inflammation, which occurs primarily through the AKT/Iκb/NF‑κB signaling pathway in RAW264.7 cells.
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Affiliation(s)
- Byoung Ok Cho
- Department of Food Science, Institute of Health Science, Jeonju University, Jeonju‑si, Jeollabuk‑do 55069, Republic of Korea
| | - Jae Young Shin
- Department of Food Science and Technology, Jeonbuk National University, Jeonju‑si, Jeollabuk‑do 54896, Republic of Korea
| | - Hyun Ju Kang
- Department of Health Management, Jeonju University, Jeonju‑si, Jeollabuk‑do 55069, Republic of Korea
| | - Ji Hyeon Park
- Department of Health Management, Jeonju University, Jeonju‑si, Jeollabuk‑do 55069, Republic of Korea
| | - Suping Hao
- Department of Health Management, Jeonju University, Jeonju‑si, Jeollabuk‑do 55069, Republic of Korea
| | - Feng Wang
- Department of Health Management, Jeonju University, Jeonju‑si, Jeollabuk‑do 55069, Republic of Korea
| | - Seon Il Jang
- Department of Food Science, Institute of Health Science, Jeonju University, Jeonju‑si, Jeollabuk‑do 55069, Republic of Korea
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Li Y, Wang N, Ma Z, Wang Y, Yuan Y, Zhong Z, Hong Y, Zhao M. Lipoxin A4 protects against paraquat‑induced acute lung injury by inhibiting the TLR4/MyD88‑mediated activation of the NF‑κB and PI3K/AKT pathways. Int J Mol Med 2021; 47:86. [PMID: 33760150 PMCID: PMC7992923 DOI: 10.3892/ijmm.2021.4919] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/26/2021] [Indexed: 12/25/2022] Open
Abstract
Paraquat (PQ) causes serious oxidative stress and inflammatory responses, particularly to the lungs. Since lipoxin A4 (LXA4) functions as an anti‑inflammatory mediator, the present study aimed to explore its effects on PQ‑induced acute lung injury (ALI) and to elucidate the possible underlying mechanisms. PQ was administered to male SD rats and RAW264.7 cells to establish a model of poisoning, and LXA4 was used as an intervention drug. LXA4 treatment attenuated PQ‑induced lung injury, and this was accompanied by decreased tumor necrosis factor (TNF)‑α and interleukin (IL)‑1β secretion levels, and reduced oxidative stress damage. Additionally, LXA4 treatment inhibited the activation of the inflammation‑related signaling molecules, Toll‑like receptor 4 (TLR4), myeloid differentiation primary response 88 (MyD88), nuclear factor (NF)‑κB p65, p‑phosphoinositide 3‑kinase (PI3K) and p‑AKT. Furthermore, the in vitro experiments further confirmed that the beneficial effects of LXA4 on PQ‑induced damage were TLR4‑dependent. Hence, the present study demonstrated that LXA4 attenuated PQ‑induced toxicity in lung tissue and RAW264.7 macrophages, and that this protective effect may be closely related to the mitigation of inflammatory responses, oxidative stress damage and the TLR4/MyD88‑mediated activation of the PI3K/AKT/NF‑κB pathway.
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Affiliation(s)
- Yuhua Li
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Na Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
- Occupational Disease and Occupational Health Prevention and Control Institute, Liaoning Center for Disease Control and Prevention, Shenyang, Liaoning 110004, P.R. China
| | - Zhongliang Ma
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yunwen Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yuan Yuan
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Zhitao Zhong
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yi Hong
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Min Zhao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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Li S, Wang H, Ma R, Wang L. Schisandrin B inhibits epithelial‑mesenchymal transition and stemness of large‑cell lung cancer cells and tumorigenesis in xenografts via inhibiting the NF‑κB and p38 MAPK signaling pathways. Oncol Rep 2021; 45:115. [PMID: 33907830 PMCID: PMC8107653 DOI: 10.3892/or.2021.8066] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/29/2021] [Indexed: 01/06/2023] Open
Abstract
Lung cancer is one of the most common types of cancer in the world, resulting in numerous cancer-associated deaths. The properties of cancer stem cells (CSCs) are important for the initiation and deterioration of lung cancer. Schisandrin B (SchB), an active compound extracted from Schisandra chinensis, exerts anticancer effects in various malignancies, including lung cancer. Nevertheless, the potential of SchB in epithelial-mesenchymal transition (EMT) and CSC features of large-cell lung cancer remains unclear. The present study established cancer stem-like cells derived from large-cell lung cancer cells, NCI-H460 and H661, and revealed that SchB inhibited the viability of cancer stem-like cells at concentrations of ≥40 µmol/l. Moreover, SchB prominently inhibited cell migration, invasion and EMT. Sphere-forming assays and western blotting demonstrated that the stemness of cancer stem-like cells was alleviated by SchB treatment. Mechanistically, the current findings revealed that SchB contributed to the suppression of the NF-κB and p38 MAPK signaling pathways. Notably, further results revealed that the malignant behaviors of NCI-H460-CSCs induced by the activation of the NF-κB and p38 MAPK signaling pathways were suppressed by SchB treatment. Consistently, the inhibitory role of SchB in EMT and CSC activities, as well as in the activation of the NF-κB and p38 MAPK signaling pathways, was confirmed in vivo. In conclusion, the present study demonstrated that SchB exerted inhibitory effects on large-cell lung cancer cells via targeting the NF-κB and p38 MAPK signaling pathways, suggesting that SchB may act as a potential therapeutic drug for large-cell lung cancer.
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Affiliation(s)
- Shuping Li
- Department of Thoracic and Cardiac Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610500, P.R. China
| | - Hong Wang
- Department of Thoracic and Cardiac Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610500, P.R. China
| | - Ruidong Ma
- Department of Thoracic and Cardiac Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610500, P.R. China
| | - Li Wang
- Department of Anesthesiology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610500, P.R. China
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Wang B, Li XH, Song Z, Li ML, Wu XW, Guo MX, Zhang XH, Zou XP. Isoacteoside attenuates acute kidney injury induced by severe acute pancreatitis. Mol Med Rep 2021; 23:287. [PMID: 33649800 DOI: 10.3892/mmr.2021.11926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 01/28/2021] [Indexed: 11/05/2022] Open
Abstract
Severe acute pancreatitis (SAP) is a common acute abdominal disease accompanied by systemic inflammatory response syndrome, which may be complicated by acute kidney injury (AKI). Isoacteoside (ISO) is the active ingredient of Monochasma savatieri Franch. ex Maxim and has been reported to have anti‑inflammatory activities. The present study detected the effects of ISO on AKI induced by SAP in rat models, and the underlying mechanism. The optimum dose of ISO for treatment of AKI induced by SAP was determined. The serum levels of TNF‑α and IL‑6 were estimated using an ELISA. Kidney injury was evaluated by histopathological examination, and the expression levels of nitric oxide were also detected. The expression levels of Toll‑like receptor 4 (TLR4) and NF‑κB p65 were measured by immunohistochemistry and western blotting. The results revealed that ISO may serve a critical role in ameliorating AKI induced by SAP. These effects may be associated with the TLR4/NF‑κB signaling pathway.
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Affiliation(s)
- Bin Wang
- Nanjing Drum Tower Hospital Clinical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210008, P.R. China
| | - Xi-Han Li
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University, Nanjing, Jiangsu 210008, P.R. China
| | - Zhang Song
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University, Nanjing, Jiangsu 210008, P.R. China
| | - Min-Li Li
- Department of Gastroenterology, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Xiao-Wei Wu
- Department of Gastroenterology, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Mei-Xia Guo
- Department of Gastroenterology, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Xiao-Hua Zhang
- Department of Gastroenterology, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Xiao-Ping Zou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University, Nanjing, Jiangsu 210008, P.R. China
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Song DQ, Liu J, Wang F, Li XF, Liu MH, Zhang Z, Cao SS, Jiang X. Procyanidin B2 inhibits lipopolysaccharide‑induced apoptosis by suppressing the Bcl‑2/Bax and NF‑κB signalling pathways in human umbilical vein endothelial cells. Mol Med Rep 2021; 23:267. [PMID: 33576443 PMCID: PMC7893691 DOI: 10.3892/mmr.2021.11906] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 01/04/2021] [Indexed: 12/23/2022] Open
Abstract
Human umbilical vein endothelial cells (HUVECs) serve a critical role in maintaining normal vascular function. Lipopolysaccharide (LPS), which is released from pathogenic bacteria in the blood, induces HUVEC apoptosis and injury to cause vascular dysfunction and infectious vascular diseases. Procyanidin B2 (PB2) possesses numerous functions, including antioxidant, antitumor, anti‑inflammatory and antiapoptosis effects, but the molecular mechanism is not completely understood. The present study investigated the effects of PB2 on LPS‑induced cytotoxicity and apoptosis in HUVECs, as well as the underlying mechanisms. The effects of PB2 on LPS‑mediated alterations to cytotoxicity, mitochondrial membrane potential, apoptosis were assessed by performing Cell Counting Kit‑8, JC‑1 fluorescence, Hoechst 33258 staining assays, respectively. IL‑1β, IL‑6 and TNF‑α mRNA expression and protein levels were measured by performing reverse transcription‑quantitative PCR and ELISAs, respectively. Bcl‑2, Bax, cleaved caspase‑3, cleaved caspase‑7, cleaved caspase‑9, phosphorylated (p)‑IκB‑α, p‑IκB‑β, p‑NF‑κB‑p65 and total NF‑κB p65 protein expression levels were determined via western blotting. NF‑κB p65 nuclear translocation was assessed via immunofluorescence. PB2 pretreatment markedly attenuated LPS‑induced cytotoxicity and apoptosis in HUVECs. PB2 also significantly downregulated the expression levels of IL‑1β, IL‑6, TNF‑α, Bax, cleaved caspase‑3, cleaved caspase‑7, cleaved caspase‑9 and p‑NF‑κB‑p65, but upregulated the expression levels of Bcl‑2, p‑IκB‑α and p‑IκB‑β in LPS‑induced HUVECs. Moreover, PB2 markedly inhibited LPS‑induced NF‑κB p65 nuclear translocation in HUVECs. The results suggested that the potential molecular mechanism underlying PB2 was associated with the Bax/Bcl‑2 and NF‑κB signalling pathways. Therefore, PB2 may serve as a useful therapeutic for infectious vascular diseases.
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Affiliation(s)
- Da-Qiang Song
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jiao Liu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Fang Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xiao-Fang Li
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Ming-Hua Liu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Zhuo Zhang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Shou-Song Cao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xian Jiang
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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Yu Q, Li Q, Yang X, Liu Q, Deng J, Zhao Y, Hu R, Dai M. Dexmedetomidine suppresses the development of abdominal aortic aneurysm by downregulating the mircoRNA‑21/PDCD 4 axis. Int J Mol Med 2021; 47:90. [PMID: 33786608 PMCID: PMC8029612 DOI: 10.3892/ijmm.2021.4923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 01/27/2021] [Indexed: 12/12/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a pathological state with permanent dilation, which indicates a fatal potential for aortic rupture. It has been reported that dexmedetomidine (Dex) and microRNA (miR)-21 are involved in the progression of AAA. Thus, the present study aimed to investigate the joint effects of these factors on AAA treatment. For this purpose, rat models of AAA were established with enzyme perfusion and the rats were then injected with Dex. Alterations in the abdominal aorta in rats with AAA were recorded. miR-21 expression in the rats with AAA was determined. Inflammatory factor expression was detected by western blot analysis. Subsequently, a dual-luciferase reporter gene assay was performed to verify the targeting association between miR-21 and programmed cell death protein 4 (PDCD4). Additionally, AAA-related indices and inflammatory responses were examined by an injection of a combination of antagomiR (ant)-miR-21 and Dex or lentivirus-PDCD4-short hairpin RNA. It was found that Dex markedly alleviated the development of AAA and downregulated the expression of inflammatory factors and matrix metalloproteinase in rats with AAA. The high expression of miR-21, which targets PDCD4, was observed in the rats with AAA. However, ant-miR-21 induced AAA development and inflammatory responses. Additionally, the inhibition of PDCD4 reduced AAA development and inflammatory responses. On the whole, the present study demonstrates that Dex inhibits AAA development by downregulating the miR-21/PCDP4 axis. The findings of the present study may provide novel insight for the treatment of AAA. These findings may provide a reference for the future treatment of AAA and may provide theoretical guidance for the early prevention and development of AAA.
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Affiliation(s)
- Qi Yu
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qianqian Li
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xinglong Yang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qiang Liu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Jun Deng
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yanping Zhao
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Ruilin Hu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Min Dai
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Ma B, Wang X, Zhang R, Niu S, Rong Z, Ni L, Di X, Han Q, Liu C. Cigarette smoke extract stimulates PCSK9 production in HepG2 cells via ROS/ NF‑κB signaling. Mol Med Rep 2021; 23:331. [PMID: 33760160 PMCID: PMC7974406 DOI: 10.3892/mmr.2021.11970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 02/19/2021] [Indexed: 12/14/2022] Open
Abstract
Cigarette smoke (CS) exposure is a risk factor for dyslipidemia and atherosclerosis. Reduced expression of low-density lipoprotein receptor (LDLR) in hepatocytes may be one of the underlying mechanisms for these disorders. The aim of the present study was to investigate the molecular mechanism underlying the regulatory effect of CS extract (CSE) on proprotein convertase subtilisin/kexin type 9 (PCSK9) and low LDLR expression in HepG2 cells. PCSK9 and LDLR mRNA and protein expression levels in HepG2 cells were evaluated after CSE treatment via reverse transcription-quantitative polymerase chain reaction and western blotting, respectively. In addition, total intracellular reactive oxygen species (ROS) production was determined via 2,7-dichlorofluorescein diacetate fluorescence. CSE significantly increased PCSK9 expression and inhibited LDLR expression in a time- and concentration-dependent manner. Furthermore, CSE significantly induced ROS production and nuclear factor κB (NF-κB) activation. However, pretreatment with a ROS scavenger or an NF-κB inhibitor significantly attenuated the CSE-induced changes in PCSK9 and LDLR expression. In addition, pretreatment with melatonin markedly reduced ROS production, NF-κB activation and PCSK9 expression, and increased LDLR expression in the CSE-treated cells. These data suggest that melatonin inhibits CSE-regulated PCSK9 and LDLR production in HepG2 cells via ROS/NF-κB signaling.
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Affiliation(s)
- Baitao Ma
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Xuebin Wang
- Department of Vascular Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Rui Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Shuai Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Zhihua Rong
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Leng Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Xiao Di
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Qin Han
- Center of Excellence in Tissue Engineering, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy, Beijing 100005, P.R. China
| | - Changwei Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
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Yao Y, Luo R, Xiong S, Zhang C, Zhang Y. Protective effects of curcumin against rat intestinal inflammation‑related motility disorders. Mol Med Rep 2021; 23:391. [PMID: 33760185 PMCID: PMC8008224 DOI: 10.3892/mmr.2021.12030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 12/15/2020] [Indexed: 02/07/2023] Open
Abstract
Intestinal inflammation frequently occurs alongside dysmotility, which is characterized by altered myosin light chain phosphorylation levels. Curcumin, an active component from the ginger family, is reported to confer anti‑inflammatory effects. However, the effects of curcumin on both diarrhea and constipation associated inflammation remains to be elucidated. The present study was designed to investigate the effects of curcumin on diarrhea and constipation and to determine the related mechanisms. Sprague‑Dawley rats were used to establish diarrhea and constipation models via intracolonic acetic acid (4%) instillation or cold water gavage for 2 weeks, respectively. Blood samples were collected to measure the serum levels of the cytokines TNF‑α and IL‑1β using ELISA kits. Western blotting was performed to measure NF‑κB, RhoA, Rho‑related kinase 2, phosphorylated MLC20, phosphorylated myosin phosphorylated target subunit 1, 130k Da‑MLC kinase (MLCK), c‑kit tyrosine kinase protein expression, and reverse transcription‑quantitative PCR was conducted to measure MLCK expression levels. The results indicated that curcumin reversed the elevations in the pro‑inflammatory cytokines IL‑1β and TNF‑α by inhibiting the NF‑κB pathway in rats with diarrhea and constipation. The results also indicated that myosin light chain (MLC) phosphorylation in intestinal smooth muscle was positively and negatively associated with the motility of inflammation‑related diarrhea and constipation in rats, respectively. Curcumin significantly reversed the increased MLC phosphorylation in the jejunum of the rats with diarrhea, significantly enhanced the reductions in inflammatory mediators, including TNF‑α and IL‑1β, of rats with constipation and significantly ameliorated the related hyper‑motility and hypo‑motility in rats with both diarrhea and constipation. In conclusion, the potential roles of the MLC kinase, c‑kit tyrosine and Rho A/Rho‑associated kinase 2 pathways, which are involved in curcumin‑induced amelioration of inflammation‑related diarrhea and constipation, were explored in the present study. Results from the present study suggested that curcumin has potential therapeutic value for treating intestinal inflammation and inflammation‑related motility disorders.
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Affiliation(s)
- Yang Yao
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, P.R. China
| | - Ranyuan Luo
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, P.R. China
| | - Shu Xiong
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, P.R. China
| | - Chang Zhang
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, P.R. China
| | - Yukun Zhang
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, P.R. China
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Omi K, Matsuo Y, Ueda G, Aoyama Y, Kato T, Hayashi Y, Imafuji H, Saito K, Tsuboi K, Morimoto M, Ogawa R, Takahashi H, Takiguchi S. Escin inhibits angiogenesis by suppressing interleukin‑8 and vascular endothelial growth factor production by blocking nuclear factor‑κB activation in pancreatic cancer cell lines. Oncol Rep 2021; 45:55. [PMID: 33760162 PMCID: PMC7962110 DOI: 10.3892/or.2021.8006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 12/21/2020] [Indexed: 12/20/2022] Open
Abstract
Pancreatic cancer (PaCa) is one of the most aggressive types of cancer. Thus, the development of new and more effective therapies is urgently required. Escin, a pentacyclic triterpenoid from the horse chestnut, has been reported to exhibit antitumor potential by reducing cell proliferation and blocking the nuclear factor-κB (NF-κB) signaling pathway in several types of cancer. Our previous study reported that NF-κB enhanced the secretion of interleukin (IL)-8 and vascular endothelial growth factor (VEGF), thereby inducing angiogenesis in PaCa cell lines. In the present study, it was examined whether escin inhibited angiogenesis by blocking NF-κB activation in PaCa. It was initially confirmed that escin, at concentrations >10 µM, significantly inhibited the proliferation of several PaCa cell lines. Next, using immunocytochemical staining, it was found that escin inhibited the nuclear translocation of NF-κB. Furthermore, ELISA confirmed that NF-κB activity in the escin-treated PaCa cells was significantly inhibited and reverse transcription-quantitative PCR showed that the mRNA expression levels of tumor necrosis factor-α-induced IL-8 and VEGF were significantly suppressed following escin treatment in the PaCa cell lines. ELISA also showed that escin decreased the secretion of IL-8 and VEGF from the PaCa cells. Furthermore, tube formation in immortalized human endothelial cells was inhibited following incubation with the supernatants from escin-treated PaCa cells. These results indicated that escin inhibited angiogenesis by reducing the secretion of IL-8 and VEGF by blocking NF-κB activity in PaCa. In conclusion, escin could be used as a novel molecular therapy for PaCa.
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Affiliation(s)
- Kan Omi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Yoichi Matsuo
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Goro Ueda
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Yoshinaga Aoyama
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Tomokatsu Kato
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Yuichi Hayashi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Hiroyuki Imafuji
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Kenta Saito
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Ken Tsuboi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Mamoru Morimoto
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Ryo Ogawa
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Hiroki Takahashi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
| | - Shuji Takiguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
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Zhang R, Guo N, Yan G, Wang Q, Gao T, Zhang B, Hou N. Ginkgolide C attenuates lipopolysaccharide‑induced acute lung injury by inhibiting inflammation via regulating the CD40/ NF‑κB signaling pathway. Int J Mol Med 2021; 47:62. [PMID: 33649807 PMCID: PMC7910011 DOI: 10.3892/ijmm.2021.4895] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 02/08/2021] [Indexed: 11/06/2022] Open
Abstract
Excessive lung inflammation caused by endotoxins, including lipopolysaccharide (LPS), mediates the detrimental effects of acute lung injury (ALI), as evidenced by severe alveolar epithelial cell injury. CD40, a member of the tumor necrosis factor receptor superfamily, serves as a central activator in triggering and transducing a series of severe inflammatory events during the pathological processes of ALI. Ginkgolide C (GC) is an efficient and specific inhibitor of CD40. Therefore, the present study aimed to investigate whether GC alleviated LPS‑induced ALI, as well as the potential underlying mechanisms. LPS‑injured wild‑type and CD40 gene conditional knockout mice, and primary cultured alveolar epithelial cells isolated from these mice served as in vivo and in vitro ALI models, respectively. In the present study, histopathological assessment, polymorphonuclear neutrophil (PMN) infiltration, lung injury score, myeloperoxidase activity, wet‑to‑dry (W/D) weight ratio and hydroxyproline (Hyp) activity were assessed to evaluate lung injury. In addition, immunohistochemistry was performed to evaluate intracellular adhesion molecule‑1, vascular cell adhesion molecule‑1 and inducible nitric oxide synthase expression levels, and TNF‑α, IL‑1β, IL‑6 ELISAs and western blotting were conducted to elucidate the signaling pathway. The results demonstrated that GC alleviated LPS‑induced lung injury, as evidenced by improvements in ultrastructural characteristics and histopathological alterations of lung tissue, inhibited PMN infiltration, as well as reduced lung injury score, W/D weight ratio and hydroxyproline content. In LPS‑injured alveolar epithelial cells, GC significantly reduced IκBα phosphorylation, IKKβ activity and NF‑κB p65 subunit translocation via downregulating CD40, leading to a significant decrease in downstream inflammatory cytokine levels and protein expression levels. In conclusion, the results of the present study demonstrated that GC displayed a protective effect against LPS‑induced ALI via inhibition of the CD40/NF‑κB signaling pathway; therefore, the present study suggested that the CD40/NF‑κB signaling pathway might serve as a potential therapeutic target for ALI.
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Affiliation(s)
- Rui Zhang
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Nan Guo
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Genquan Yan
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Qian Wang
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Tiantian Gao
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Baoke Zhang
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Ning Hou
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
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Yao L, Gui M, Li J, Lu B, Wang J, Zhou X, Fu D. Shengxian decoction decreases doxorubicin‑induced cardiac apoptosis by regulating the TREM1/ NF‑κB signaling pathway. Mol Med Rep 2021; 23:219. [PMID: 33495812 PMCID: PMC7845587 DOI: 10.3892/mmr.2021.11858] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/29/2020] [Indexed: 02/06/2023] Open
Abstract
Shengxian decoction (SXT) is a traditional Chinese medicine that is clinically used for treating cardiovascular diseases. It is known for its beneficial effect on cardiomyocyte injuries, some of which can be induced by anticancer agents including doxorubicin (DOX). To determine the molecular mechanisms involved in the cardioprotective effects of SXT, DOX‑induced H9c2 cells were analyzed for apoptosis and expression levels of apoptosis biomarkers. Cell viability and apoptosis were measured by CCK‑8 and flow cytometry. Triggering receptors expressed on myeloid cells 1 (TREM1), cleaved caspase‑3, survivin and NF‑κBp65 expression levels were measured by reverse transcription‑quantitative PCR and/or western blotting. A total of 30 adult male Sprague‑Dawley rats were randomly allocated into five groups (n=6 each); control group receiving 0.9% saline, 1 DOX group receiving 2.5 mg/kg of DOX and 3 DOX + SXT groups, receiving a DOX dose equivalent to the DOX‑only group and either 0.4, 0.8 or 1.6 g/kg of SXT. It was found that DOX increased apoptosis and NF‑κB activation of H9c2 cells by increasing TREM1 expression and that SXT inhibited apoptosis and NF‑κB activation of H9c2 cells induced by DOX or Trem1 overexpression. SXT also significantly reversed DOX‑induced cardiotoxicity in rats. The results suggested that the protective effects of SXT against DOX‑induced apoptosis may be attributed to its downregulation of TREM1.
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Affiliation(s)
- Lei Yao
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Mingtai Gui
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Jianhua Li
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Bo Lu
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Jing Wang
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Xunjie Zhou
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Deyu Fu
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
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He Y, Lu X, Chen T, Yang Y, Zheng J, Chen C, Zhang Y, Lei W. Resveratrol protects against myocardial ischemic injury via the inhibition of NF‑κB‑dependent inflammation and the enhancement of antioxidant defenses. Int J Mol Med 2021; 47:29. [PMID: 33537801 PMCID: PMC7895514 DOI: 10.3892/ijmm.2021.4862] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/21/2020] [Indexed: 12/23/2022] Open
Abstract
Resveratrol (RES) is a natural phenol which possesses multiple pharmacological actions. The present study aimed to determine whether RES protects against myocardial ischemic injury in association with the inhibition of NF‑κB‑dependent inflammation and the enhancement of antioxidant defenses in mice following acute myocardial infarction (AMI). Male C57/BL mice were randomly assigned to 3 groups as follows: The sham‑operated (sham) group, AMI + vehicle group and AMI + RES group. Rat H9C2 cells were also used to examine the effects of RES on hypoxia‑induced oxidative injury in vitro. Redox homeostasis in the mouse myocardium and rat H9C2 cells was determined post‑treatment. The mRNA and protein levels of phosphorylated (p‑)IκB kinase (p‑IKK), p‑nuclear factor (NF)‑κB p65, interleukin (IL)‑1β, IL‑6, nerve growth factor (NGF) and insulin‑like growth factor‑1 (IGF‑1) were measured by RT‑qPCR and western blot analysis. It was found that RES slightly protected the myocardium against ischemic injury in mice, while it prevented the hypoxia‑induced apoptosis of H9C2 cells. RES decreased the production of reactive oxygen species (ROS) and enhanced the activities of superoxide dismutase (SOD), glutathione (GSH) and glutathione peroxidase (GPx). RES also downregulated the protein and/or mRNA levels of p‑IKK, p‑NF‑κB p65, IL‑1β, IL‑6, NGF and IGF‑1 at 7 and 28 days after infarction. On the whole, these data indicate that RES protects the myocardium against ischemic injury in association with the inhibition of oxidative stress and inflammatory responses. Thus, RES has the potential to be used as an adjunctive therapeutic drug for heart diseases.
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Affiliation(s)
- Yuan He
- Laboratory of Cardiovascular Diseases
| | | | | | - Yu Yang
- Gerontology Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Jing Zheng
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53715, USA
| | | | - Yuanqi Zhang
- Department of Vascular, Thyroid and Breast Surgery, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Wei Lei
- Laboratory of Cardiovascular Diseases
- Cardiovascular Medicine Center
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Wang Z, Liang X, Xiong A, Ding L, Li W, Yang L, Wu X, Shi H, Zhou Y, Wang Z. Helichrysetin and TNF‑α synergistically promote apoptosis by inhibiting overactivation of the NF‑κB and EGFR signaling pathways in HeLa and T98G cells. Int J Mol Med 2021; 47:49. [PMID: 33576459 PMCID: PMC7891838 DOI: 10.3892/ijmm.2021.4882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 01/14/2021] [Indexed: 12/26/2022] Open
Abstract
Tumor necrosis factor‑α (TNF‑α) has different effects on apoptosis depending on activation or inactivation of the nuclear factor‑κB (NF‑κB) and epidermal growth factor receptor (EGFR) signaling pathways. Helichrysetin, a natural chalcone, inhibits NF‑κB nuclear translocation in mouse pancreatic β cells. The present study aimed to identify the effect of helichrysetin on activation of the NF‑κB and EGFR signaling pathways induced by TNF‑α, and the synergistic effect of helichrysetin and TNF‑α on apoptosis of HeLa and T98G cells. Cell proliferation was measured by Cell Counting Kit‑8 assay, while apoptosis was measured by Hoechst 33258 and Annexin V/PI staining. NF‑κB activity was detected by luciferase assay, protein expression was measured by western blotting and mRNA expression was detected by quantitative PCR assay. The results revealed that in HeLa and T98G cells helichrysetin blocked the increased phosphorylation of NF‑κB p65 induced by TNF‑α. Although helichrysetin alone decreased cell viability, helichrysetin and TNF‑α synergistically decreased cell viability. Helichrysetin, not TNF‑α, promoted apoptosis, while the combination of helichrysetin and TNF‑α synergistically increased apoptosis. In addition, helichrysetin and TNF‑α synergistically enhanced the activation of caspase‑3 and poly‑(ADP‑ribose)‑polymerase compared with helichrysetin alone. Helichrysetin inhibited the phosphorylation of transforming growth factor‑β activated kinase (TAK1), IκB kinase‑α/β (IKK‑α/β), NF‑κB p65 and EGFR induced by TNF‑α. Consistent with the inhibition of NF‑κB activation, the increased TNF‑α‑induced mRNA expression levels of TNF‑α, IL‑1β, CCL2, CCL5 and CXCL10 were significantly downregulated by helichrysetin. Therefore, helichrysetin and TNF‑α synergistically promoted apoptosis by inhibiting TAK1/IKK/NF‑κB and TAK1/EGFR signaling pathways in HeLa and T98G cells, indicating a potential therapeutic strategy for cancer.
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Affiliation(s)
- Zhiying Wang
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Xiaohui Liang
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Aizhen Xiong
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Lili Ding
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Wei Li
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Li Yang
- Institute of Interdisciplinary Integrative Medicine Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Xiaojun Wu
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Hailian Shi
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Yue Zhou
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Zhengtao Wang
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
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Zhang W, Jia L, Zhao B, Xiong Y, Wang YN, Liang J, Xu X. Quercetin reverses TNF‑α induced osteogenic damage to human periodontal ligament stem cells by suppressing the NF‑κB/NLRP3 inflammasome pathway. Int J Mol Med 2021; 47:39. [PMID: 33537804 PMCID: PMC7891819 DOI: 10.3892/ijmm.2021.4872] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/21/2021] [Indexed: 11/17/2022] Open
Abstract
Quercetin (Quer) is a typical antioxidant flavonoid from plants that is involved in bone metabolism, as well as in the progression of inflammatory diseases. Elevated levels of tumor necrosis factor-α (TNF-α), a typical pro-inflammatory cytokine, can affect osteogenesis. In the present study, TNF-α was used to establish an in vitro model of periodontitis. The effects of Quer on, as well as its potential role in the osteogenic response of human periodontal ligament stem cells (hPDLSCs) under TNF-α-induced inflammatory conditions and the underlying mechanisms were then investigated. Within the appropriate concentration range, Quer did not exhibit any cytotoxicity. More importantly, Quer significantly attenuated the TNF-α induced the suppression of osteogenesis-related genes and proteins, alkaline phosphatase (ALP) activity and mineralized matrix in the hPDLSCs. These findings were associated with the fact that Quer inhibited the activation of the NF-κB signaling pathway, as well as the expression of NLRP3 inflammation-associated proteins in the inflammatory microenvironment. Moreover, the silencing of NLRP3 by small interfering RNA (siRNA) was found to protect the hPDLSCs against TNF-α-induced osteogenic damage, which was in accordance with the effects of Quer. On the whole, the present study demonstrates that Quer reduces the impaired osteogenesis of hPDLSCs under TNF-α-induced inflammatory conditions by inhibiting the NF-κB/NLRP3 inflammasome pathway. Thus, Quer may prove to be a potential remedy against periodontal bone defects.
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Affiliation(s)
- Wenjing Zhang
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Linglu Jia
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Bin Zhao
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Yixuan Xiong
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Ya-Nan Wang
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Jin Liang
- School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Xin Xu
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
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Jansakun C, Chulrik W, Chaichompoo W, Yotmanee P, Lehboon K, Chunglok W, Sattayakhom A, Hiransai P, Kamdee K, Utaipan T, Suksamrarn A, Chunglok W. 1,7‑Bis(4‑hydroxy‑3‑methoxyphenyl)‑1,4,6‑heptatrien‑3‑one alleviates lipopolysaccharide‑induced inflammation by targeting NF‑κB translocation in murine macrophages and it interacts with MD2 in silico. Mol Med Rep 2021; 23:209. [PMID: 33495830 DOI: 10.3892/mmr.2021.11848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 11/10/2020] [Indexed: 11/06/2022] Open
Abstract
Trienones are curcuminoid analogues and are minor constituents in the rhizomes of numerous Curcuma plant species. Studies investigating the biological activities of trienones, particularly their anti‑inflammatory activities, are limited. In the present study, the trienone 1,7‑bis(4‑hydroxy‑3‑methoxyphenyl)‑1,4,6‑heptatrien‑3‑one (HMPH) was structurally modified from curcumin using a novel and concise method. HMPH was shown to exhibit potential anti‑inflammatory effects on lipopolysaccharide (LPS)‑activated RAW264.7 macrophages. Furthermore, LPS‑induced nitric oxide secretion in RAW264.7 cells was markedly and dose‑dependently inhibited by HMPH; in addition, HMPH had a greater efficacy compared with curcumin. This inhibition was accompanied by the suppression of inducible nitric oxide synthase and cyclooxygenase‑2 expression, as well as pro‑inflammatory cytokine secretion. To elucidate the molecular mechanism underlying the anti‑inflammatory effects of HMPH, the effects of this compound on nuclear factor‑κB (NF‑κB) translocation were assessed. HMPH significantly inhibited the translocation of p65 NF‑κB into the nucleus to a greater extent than curcumin, thus indicating that HMPH has more potent anti‑inflammatory activity than curcumin. In addition, an in silico modelling study revealed that HMPH possessed stronger binding energy to myeloid differentiation factor 2 (MD2) compared with that of curcumin, and indicated that the anti‑inflammatory effects of HMPH may be through upstream inhibition of the inflammatory pathway. In conclusion, HMPH may be considered a promising compound for reducing inflammation via targeting p65 NF‑κB translocation and interfering with MD2 binding.
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Affiliation(s)
- Chutima Jansakun
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
| | - Wanatsanan Chulrik
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
| | - Waraluck Chaichompoo
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand
| | - Pathumwadee Yotmanee
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand
| | - Kanokporn Lehboon
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand
| | - Wilanee Chunglok
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand
| | - Apsorn Sattayakhom
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
| | - Poonsit Hiransai
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
| | - Kornyok Kamdee
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
| | - Tanyarath Utaipan
- Department of Pre‑Clinic, Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, Pattani 94000, Thailand
| | - Apichart Suksamrarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand
| | - Warangkana Chunglok
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
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Park WJ, Han JS. Gryllus bimaculatus extract protects against lipopolysaccharide and palmitate-induced production of proinflammatory cytokines and inflammasome formation. Mol Med Rep 2021; 23:206. [PMID: 33495809 PMCID: PMC7821350 DOI: 10.3892/mmr.2021.11845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/08/2020] [Indexed: 01/22/2023] Open
Abstract
Inflammation and the inflammasome complex formation are associated with numerous diseases, and palmitates or lipopolysaccharides (LPS) have been identified as potential links between these disorders. Recently, edible insects such as the Gryllus bimaculatus (GB) and the larva of Tenebrio molitor have emerged as alternative food sources. In the present study, the effect of GB on LPS- or palmitate-induced production of inflammatory cytokines, the formation of the inflammasome complex, reactive oxygen species (ROS) generation, endoplasmic reticulum (ER) stress and cell death was investigated in RAW264.7 cells. The results revealed that GB extract downregulated the production of inflammatory cytokines (such as TNF-α, IL-1β and IL-6). Since the role of the MAP kinase and NF-κB signalling pathways in the production of inflammatory cytokines is well established, the translocation of p65 into the nucleus and the phosphorylation of IκB and MAP kinases were further examined. Both these processes were upregulated following LPS and palmitate treatment, but they were inhibited by the GB extract. Moreover, GB extract decreased LPS/palmitate-induced inflammasome complex formation (assessed via analysing the levels of the apoptosis-associated speck-like protein containing a caspase-recruitment domain, NOD-like receptor family pyrin domain containing 3, cleaved caspase-1 and IL-1β), the generation of ROS, ER stress and cell death. Treatment with SB203580 (a p38 inhibitor), SP600125 (a JNK inhibitor) and pyrrolidinedithiocarbamate ammonium (an NF-κB inhibitor) decreased the production of inflammatory cytokines, as well as helped in the recovery of LPS/palmitate-induced cell death. Overall, GB extract served an inhibitory role in LPS/palmitate-induced inflammation via inhibiting the MAP kinase and NF-κB signalling pathways, inflammasome complex formation, ROS generation, ER stress and cell death.
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Affiliation(s)
- Woo-Jae Park
- Department of Biochemistry, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Jung-Soon Han
- Research Institute of Human Ecology, Korea University, Seoul 02841, Republic of Korea
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Jin Q, Zhu Q, Wang K, Chen M, Li X. Allisartan isoproxil attenuates oxidative stress and inflammation through the SIRT1/Nrf2/ NF‑κB signalling pathway in diabetic cardiomyopathy rats. Mol Med Rep 2021; 23:215. [PMID: 33495841 PMCID: PMC7845586 DOI: 10.3892/mmr.2021.11854] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 12/22/2020] [Indexed: 02/06/2023] Open
Abstract
Allisartan isoproxil is a new nonpeptide angiotensin II receptor blocker (ARB) precursor drug that is used to treat hypertension and reduce the risk of heart disease. The present study explored the effects of allisartan isoproxil on diabetic cardiomyopathy (DCM) and revealed the roles of hyperglycaemia-induced oxidative stress and inflammation. A rat DCM model was established by high-fat diet feeding in combination with intraperitoneal injection of streptozocin. Echocardiographs showed that diabetic rats exhibited significantly decreased cardiac function. Troponin T (cTnT) and B-type natriuretic peptide (BNP) were significantly increased in DCM rats as obtained by ELISA. Allisartan isoproxil significantly improved the EF% and E™/A™ ratio. Histopathologic staining showed that allisartan isoproxil prevented histological alterations, attenuated the accumulation of collagen, and ameliorated cTnT and BNP levels. Western blot and immunohistochemical results indicated that the expression levels of silent information regulator 2 homologue 1 (SIRT1) and nuclear factor erythroid 2-related factor 2 (Nrf2) were decreased in the hearts of diabetic rats, and antioxidant defences were also decreased. In addition, allisartan isoproxil decreased the expression of NF-κB p65 and the inflammatory cytokines TNF-α and IL-1β which were determined by reverse transcription-quantitative PCR in the diabetic heart. Western blotting and TUNEL staining results also showed that cardiac Bax and cleaved caspase-3 and the number of apoptotic myocardial cells were increased in the diabetic heart and decreased following treatment with allisartan isoproxil. In conclusion, the present results indicated that allisartan isoproxil alleviated DCM by attenuating diabetes-induced oxidative stress and inflammation through the SIRT1/Nrf2/NF-κB signalling pathway.
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Affiliation(s)
- Qinyang Jin
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Qin Zhu
- Department of Nephrology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310007, P.R. China
| | - Kai Wang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Mengli Chen
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xinli Li
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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50
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Xie X, Huang C, Xu D, Liu Y, Hu M, Long J, Fang X. Elevation of hypertonicity‑induced protein NFAT5 promotes apoptosis of human umbilical vein endothelial cells through the NF‑κB pathway. Mol Med Rep 2021; 23:184. [PMID: 33398376 DOI: 10.3892/mmr.2021.11823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 09/22/2020] [Indexed: 11/05/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a great threat to the health of elder (>50 years old) individuals. High salt intake is considered to raise the risk of AAA but the underlying mechanism remains to be elucidated. As endothelial dysfunction in the abdominal aorta is strongly associated with AAA, the present study hypothesized that high salt led to AAA by inducing apoptosis of endothelial cells. The present study verified that hypertonic medium with excess sodium chloride induced apoptosis of human umbilical vein endothelial cells (HUVECs), a commonly used cell model to study aortic endothelial cells. Further mechanism studies suggested that hypertonic conditions elevated the expression of nuclear factor of activated T cells 5 (NFAT5) and a high level of NFAT5 was capable of inducing apoptosis of HUVECs. In the investigation of downstream signals of NFAT5, it was identified that either hypertonic conditions or NFAT5 overexpression promoted the activity of NF‑κB signaling pathway and subsequently suppressed the expression of anti‑apoptotic protein Bcl‑2. Thus, the present study demonstrated a novel mechanism by which high salt induced apoptosis of endothelial cells by enhancing the NFAT5‑NF‑κB signaling pathway. These findings will extend our knowledge about the pathogenesis of AAA and provide potential drug targets for the treatment of AAA.
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