1
|
Kelly-Laubscher R, Somers S, Lacerda L, Lecour S. Role of nuclear factor kappa-B in TNF-induced cytoprotection. Cardiovasc J Afr 2023; 34:74-80. [PMID: 35687060 PMCID: PMC10512038 DOI: 10.5830/cvja-2022-023] [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: 08/18/2020] [Accepted: 05/10/2022] [Indexed: 06/15/2023] Open
Abstract
Ischaemic heart disease (IHD) is a leading cause of death worldwide. Understanding prosurvival signalling pathways that protect against ischaemia-reperfusion injury (IRI) may assist in the development of novel cardioprotective strategies against IHD. In this regard, the transcription factor, nuclear factor kappa-B (NFκB) is activated by tumour necrosis factor (TNF), but its role in TNF-induced cytoprotection is unknown. Therefore, to investigate the role of NFκB in TNF-induced cytoprotection, C2C12 cells were pretreated with TNF (0.5 ng/ml) in the presence and absence of an NFκB inhibitor, pyrrolidine derivative of dithiocarbamate (PDTC; 100 µM). Cells were subjected to simulated IRI and treated with PDTC, either during TNF exposure or at reperfusion. Phosphorylation of IkB was measured after the TNF stimulus. Cytoprotection by TNF in cells subjected to IRI (cell viability: 43.7 ± 8.1% in control vs 70.6 ± 6.1% with TNF, p < 0.001) was abrogated by co-administration of PDTC (40.6 ± 1.9%, p < 0.001 vs TNF) but not by exposure to PDTC at reperfusion (70.7 ± 1.7%). Cytosolic IkB phosphorylation [1.5 ± 0.2 arbitrary units (AU) for TNF vs 1.0 ± 0.0 for untreated, p < 0.01]) was increased after TNF exposure and this increase was abolished by co-administration with PDTC (0.8 ± 0.3 AU, p < 0 01 vs TNF). Our data suggest that NFκB acts as a key component in TNF-induced cytoprotection. These findings may pave the way for the development of novel therapeutic drugs that target TNF/NFκB signalling to protect against IHD.
Collapse
Affiliation(s)
- Roisin Kelly-Laubscher
- Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, University of Cape Town, South Africa; and Department of Pharmacology and Therapeutics, College of Medicine and Health, University College Cork, Ireland.
| | - Sarin Somers
- Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - Lydia Lacerda
- Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, University of Cape Town, South Africa
| | - Sandrine Lecour
- Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, University of Cape Town, South Africa
| |
Collapse
|
2
|
Ma J, Zhang X, Song Y, Qin Y, Tan Y, Zheng L, Cheng B, Xi X. D609 inhibition of phosphatidylcholine-specific phospholipase C attenuates prolonged insulin stimulation-mediated GLUT4 downregulation in 3T3-L1 adipocytes. J Physiol Biochem 2022; 78:355-363. [PMID: 35048323 PMCID: PMC9242966 DOI: 10.1007/s13105-022-00872-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 01/06/2022] [Indexed: 11/30/2022]
Abstract
Glucose uptake is stimulated by insulin via stimulation of glucose transporter 4 (GLUT4) translocation to the plasma membrane from intracellular compartments in adipose tissue and muscles. Insulin stimulation for prolonged periods depletes GLUT4 protein, particularly in highly insulin-responsive GLUT4 storage vesicles. This depletion mainly occurs via H2O2-mediated retromer inhibition. However, the post-receptor mechanism of insulin activation of oxidative stress remains unknown. Here, we show that phosphatidylcholine-specific phospholipase C (PC-PLC) plays an important role in insulin-mediated downregulation of GLUT4. In the study, 3T3-L1 adipocytes were exposed to a PC-PLC inhibitor, tricyclodecan-9-yl-xanthogenate (D609), for 30 min prior to the stimulation with 500 nM insulin for 4 h, weakening the depletion of GLUT4. D609 also prevents insulin-driven H2O2 generation in 3T3-L1 adipocytes. Exogenous PC-PLC and its product, phosphocholine (PCho), also caused GLUT4 depletion and promoted H2O2 generation in 3T3-L1 adipocytes. Furthermore, insulin-mediated the increase in the cellular membrane PC-PLC activity was observed in Amplex Red assays. These results suggested that PC-PLC plays an important role in insulin-mediated downregulation of GLUT4 and that PCho may serve as a signaling molecule.
Collapse
Affiliation(s)
- Jinhui Ma
- Department of Endocrinology, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Xu Zhang
- Baoding Maternal and Child Hospital, Baoding, 071000, China
| | - Yankun Song
- School of Medicine, Hebei University, Baoding, 071000, China
| | - Yan Qin
- Central Laboratory, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Yinghui Tan
- Central Laboratory, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Lishuang Zheng
- Central Laboratory, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Baoqian Cheng
- School of Medicine, Hebei Medical University, Shijiazhuang, 050017, China
| | - Xin Xi
- Central Laboratory, Affiliated Hospital of Hebei University, Baoding, 071000, China.
| |
Collapse
|
3
|
Xu Z, Shen ZH, Wu B, Gong SL, Chen B. Small molecule natural compound targets the NF-κB signaling and ameliorates the development of osteoarthritis. J Cell Physiol 2021; 236:7298-7307. [PMID: 33870507 DOI: 10.1002/jcp.30392] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 03/09/2021] [Accepted: 04/05/2021] [Indexed: 12/12/2022]
Abstract
Osteoarthritis (OA) is a multifactorial and chronic disease describing the destruction of cartilage that can lead to defects in the elderly. There is currently no practical strategy that can reverse the OA process. Here, we describe nepetin, a small natural compound with extracellular matrix (ECM) and inflammation regulating functions. In this study, we investigated the therapeutic effects of nepetin on interleukin-1β (IL-1β)-induced inflammation in mice chondrocyte and OA model. In chondrocytes, treatment with nepetin inhibited the overexpression of pro-inflammatory cytokines and mediators induced by IL-1β. Moreover, pretreatment or posttreatment with nepetin also reduced the ECM catabolism and enhanced the ECM anabolism. Mechanistically, nepetin suppressed NF-κB signaling pathway in IL-1β stimulated chondrocyte. Meanwhile, our molecular docking studies indicated nepetin had a powerful binding capacity to p65. Furthermore, nepetin showed a protective and therapeutic effect on the mouse OA model. To sum up, this study indicated nepetin had a new potential therapeutic option in OA.
Collapse
Affiliation(s)
- Zhu Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Zhong-Hai Shen
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Bin Wu
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Sui-Liang Gong
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Bin Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| |
Collapse
|
4
|
Teng X, Wang SY, Shi YQ, Fan XF, Liu S, Xing Y, Guo YY, Dong M. The role of emodin on cisplatin resistance reversal of lung adenocarcinoma A549/DDP cell. Anticancer Drugs 2021; 32:939-949. [PMID: 34001704 DOI: 10.1097/cad.0000000000001086] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Exploring drugs that reverse drug resistance and increase the sensitivity of chemotherapy drugs could significantly improve treatment effect of cancer. Our study explored the reversal effect and possible molecular mechanisms of emodin on cisplatin resistance in A549/DDP cells. The IC50 and resistance index of cells were determined by Cell Counting Kit-8 assay. The ability of cell proliferation was evaluated by wound healing assay. Transwell assay was used to detect cell invasion and migration. Apoptosis induction rate was determined by flow cytometry assay and 4',6- diamidino- 2-phenylindole staining. Intracellular concentration was determined by HPLC. Western blot analysis was applied to determine expressions of nuclear factor kappa beta (NF-κB) and its downstream proteins. In this study, we found that the growth inhibitory effect of cisplatin was significantly enhanced by emodin in A549/DDP cells. The combined use of emodin with DDP can effectively promote lung cancer cells apoptosis and inhibit cell migration and invasion. Further investigation indicated that reinforcement effect of emodin and DDP may be associated with inhibition of NF-κB pathway and drug efflux-related proteins such as P-glycoprotein (P-gp), multidrug resistance-associated protein (MRP) and Glutathione S-transferase (GST). The key role of NF-κB was further confirmed by the application of NF-κB inhibitor Ammonium pyrrolidinedithiocarbamate. The intervention of both can significantly increase A549/DDP cell apoptosis and inhibit DDP-induced upregulation of P-gp, MRP and GST. Emodin reverses the cisplatin resistance of tumor cells by down-regulating expression of P-gp, MRP and GST, increasing the intracellular accumulation in A549/DDP cells, and the effect may be associated with the NF-κB pathways.
Collapse
Affiliation(s)
- Xue Teng
- Department of Pharmacy, Harbin Medical University Cancer Hospital
| | - Shu Ya Wang
- Department of Pharmacy, Harbin Medical University Cancer Hospital
| | - Yuan Qi Shi
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
| | - Xiao Fan Fan
- Department of Pharmacy, Harbin Medical University Cancer Hospital
| | - Shuang Liu
- Department of Pharmacy, Harbin Medical University Cancer Hospital
| | - Yue Xing
- Department of Pharmacy, Harbin Medical University Cancer Hospital
| | - Yuan Yuan Guo
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
| | - Mei Dong
- Department of Pharmacy, Harbin Medical University Cancer Hospital
| |
Collapse
|
5
|
Hafeez F, Mansha A, Fawad Zahoor A, Ghulam Ali K, Gul Khan S, Raza Naqvi SA. Facile green approach towards the synthesis of some phenyl piperazine based dithiocarbamates as potent hemolytic and thrombolytic agents. Pak J Pharm Sci 2021; 34:1885-1890. [PMID: 34836855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The facile and efficient protocol for the synthesis of N-phenyl piperazine based di-thio-carbamates has been reported under neat conditions. A library of novel piperazine based di-thio-carbamates (3a-h) in excellent yields has been prepared. Solvent free, catalyst free and easy work up conditions make this protocol an attractive synthetic protocol to achieve novel biologically active di-thio-carbamates. The synthesized molecules have been characterized by FT-IR, 1HNMR and 13CNMR spectroscopic techniques. The pharmacological aspects of these derivatives have been evaluated via hemolysis and thrombolysis. All the target molecules (3a-h) exhibit mild to medium potential as hemolytic and thrombolytic agents. Among the synthesized derivatives, compound 3c showed least cytotoxicity and better thrombolytic potential.
Collapse
Affiliation(s)
- Freeha Hafeez
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Asim Mansha
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Kulsoom Ghulam Ali
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Samreen Gul Khan
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Syed Ali Raza Naqvi
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| |
Collapse
|
6
|
Li Y, Qiao Y, Wang H, Wang Z. Intraperitoneal injection of PDTC on the NF-kB signaling pathway and osteogenesis indexes of young adult rats with anterior palatal suture expansion model. PLoS One 2021; 16:e0243108. [PMID: 34242224 PMCID: PMC8352129 DOI: 10.1371/journal.pone.0243108] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/15/2020] [Indexed: 11/18/2022] Open
Abstract
In recent years, many studies have found that mechanical tension can activiate NF-kB signal pathway and NF-kB plays an important role in the process of osteogenesis. However, it is still unclear whether this process exists in the anterior palatal suture expansion. In this paper, we mainly studied the effect of intraperitoneal injection of PDTC on the NF-kB signaling pathway and osteogenesis index of the anterior palatal suture expansion model in young adult rats. The expansion model is grouped and established: 45 male 8-week-old Sprague-Dawley rats were randomly divided into three groups, an expansion only (EO) group, an expansion plus PDTC (PE) group, and a control group. The results revealed that PDTC inhibited the activity of NF-kB signaling pathway and promote one morphogenetic protein 2 (BMP-2), steocalatin (OCN) expression. Compared with the control group, the optical density (OD) value of BMP in the EO group and PE group rats increased significantly from the first day to the seventh day, and the difference was statistically significant (P<0.05). After 6.0Gy irradiation, PDTC administration group could slightly increase the total SOD level in the liver and serum of rats, and reduce the MDA level in the liver and serum, especially the effect of 60mg/kg and 90mg/kg was the most obvious.
Collapse
Affiliation(s)
- Yafang Li
- Stomatology Department, The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, Henan, China
- Zhengzhou Stomotology Hospital, Zhengzhou, Henan, China
| | - Yiqiang Qiao
- Stomatology Department, The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, Henan, China
| | - Huanhuan Wang
- Stomatology Department, The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, Henan, China
| | - Zao Wang
- Stomatology Department, The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, Henan, China
- Zhengzhou Stomotology Hospital, Zhengzhou, Henan, China
| |
Collapse
|
7
|
Yang MH, Baek SH, Ha IJ, Um JY, Ahn KS. Brassinin enhances the anticancer actions of paclitaxel by targeting multiple signaling pathways in colorectal cancer cells. Phytother Res 2021; 35:3875-3885. [PMID: 33792984 DOI: 10.1002/ptr.7095] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 12/22/2022]
Abstract
Brassinin (BSN), a precursor of phytoalexins, extracted from Chinese cabbage has been reported to act as a promising anti-neoplastic agent. However, the effects of BSN on colon cancer cells and its underlying mechanisms have not been fully elucidated. This study aimed at investigating the anti-neoplastic impact of BSN and its possible synergistic effect with paclitaxel on colon cancer cells. The effect of BSN on Janus-activated kinases (JAKs)/signal transducer and activator of transcription 3 (STAT3) and phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathways and its downstream functions was deciphered using diverse assays in colon carcinoma cells. We found that BSN displayed significant cytotoxic effect and suppressed cell proliferation on colon carcinoma cells. Additionally, it was noted that BSN modulated oncogenic gene expression and induced apoptosis through down regulating multiple oncogenic signaling cascades such as JAKs/STAT3 and PI3K/Akt/mTOR simultaneously. Besides, BSN-paclitaxel combination significantly increased cytotoxicity and induced apoptosis synergistically as compared with individual treatment of both the agents. Overall, our findings indicate that BSN may be a novel candidate for anti-colon cancer targeted therapy.
Collapse
Affiliation(s)
- Min Hee Yang
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, South Korea
- Department of Science in Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Seung Ho Baek
- College of Korean Medicine, Dongguk University, Goyang-si, South Korea
| | - In Jin Ha
- Korean Medicine Clinical Trial Center (K-CTC), Korean Medicine Hospital, Kyung Hee University, Seoul, South Korea
| | - Jae-Young Um
- Department of Science in Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Kwang Seok Ahn
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, South Korea
- Department of Science in Korean Medicine, Kyung Hee University, Seoul, South Korea
| |
Collapse
|
8
|
Solárová Z, Kello M, Solár P. Apoptotic Effect of Homobrassinin and Thiazino[6,5-b]indol is Associated with Downregulation of Heat Shock Proteins in Human Ovarian Adenocarcinoma Cells. Acta Chim Slov 2021; 68:151-158. [PMID: 34057526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023] Open
Abstract
Phytoalexins are substances with antimicrobial properties produced by plants after being attacked by microorganisms, especially phytopathogenic fungi and viruses. They are also currently being studied for their antitumor effect. We aimed to study the apoptosis-stimulating effect of homobrassinin and thiazino[6,5-b]indol in human ovarian adenocarcinoma A2780 and A2780cis cells via flow cytometric analysis of annexin V/PI, caspase 3 and 9 activity, cytochrome C release, and smac-diablo accumulation. Using the western blot technique, we also monitored the effect of both indoles on the response of heat shock proteins in these cells. Thiazino[6,5-b]indol showed more pronounced sensitizing and/or pro-apoptotic effect compared to homobrassinin accompanied by increased smac-diablo accumulation at earlier time intervals and pronounced externalization of phosphatidylserine at 72 h in A2780cis compared to A2780 cells. The apoptosis stimulating effect of thiazino[6,5-b]indol in A2780cis cells was associated with significant irreversible downregulation of HSP70 and HSP90 and partly with a decrease of HSP40. On the other hand, cisplatin-induced the apoptosis of sensitive A2780 cells with reversible downregulation of HSP40 and HSP57. In conclusion, the effect of thiazino[6,5-b]indol on resistant A2780cis cells could have a great utility in both the potential prevention and the treatment of other cisplatin-resistant tumor cells.
Collapse
|
9
|
Hafeez F, Zahoor AF, Rasul A, Ahmad S, Mansha A. Synthesis and anticancer evaluation of 2-oxo-2-(arylamino) ethyl 4-phenylpiperazine-1-carbodithioates. Pak J Pharm Sci 2021; 34:353-357. [PMID: 34275861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Piperazine moiety is found as an efficient pharmacological scaffold in various drugs. To explore the anticancer potential of piperazine framework, a series of novel N-acetamides derivatives of phenyl piperazine containing di-thio-carbamate moiety was designed and synthesized. 1HNMR, 13CNMR, FT-IR and mass spectrometry were used for the structures elucidation of these derivatives. In-vitro cytotoxic evaluation of the prepared novel compounds against lung carcinoma A-549 was carried out using standard MTT assay. All the di-thio-carbamate-piperazine derivatives exhibited moderate to excellent cytotoxic potential against A-549 cell line based on cell viability. Particularly, 6e was found to be the most potent derivative with cell viability 34.12±0.73 % at 100 μg/mL concentration and represents promising lead compound for future progress.
Collapse
Affiliation(s)
- Freeha Hafeez
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Azhar Rasul
- Department of Zoology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology Lahore, Faisalabad Campus, Faisalabad, Pakistan
| | - Asim Mansha
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| |
Collapse
|
10
|
Zhang Y, VanHecke GC, Ahn YH, Proby CM, Dinkova-Kostova AT. Sulfoxythiocarbamate S-4 inhibits HSP90 in human cutaneous squamous cell carcinoma cells. Eur J Pharmacol 2020; 889:173609. [PMID: 33031796 DOI: 10.1016/j.ejphar.2020.173609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/18/2020] [Accepted: 09/28/2020] [Indexed: 01/25/2023]
Abstract
Cancer cells rely heavily on molecular chaperones, such as heat shock protein 90 (HSP90), and their co-chaperones. The development of HSP90 inhibitors is an attractive therapeutic approach that has the potential to affect multiple hallmarks of cancer. Such approach is particularly needed for tumors that carry large mutational burdens, including cutaneous squamous cell carcinomas (cSCC). We previously identified sulfoxythiocarbamate S-4 as an HSP90 inhibitor. In this study, we investigated the mechanism(s) by which S-4 compromises the viability of human cSCC cells. S-4 inhibits HSP90 and causes depletion of its clients HER2, a tyrosine kinase oncoprotein, and Bcl-2, an anti-apoptotic protein. The decrease in Bcl-2 is accompanied by cytochrome c release from mitochondria into the cytoplasm, suggesting apoptosis. In the surviving cells, depletion of the HSP90 clients cyclin D and CDK4 by S-4 prevents phosphorylation of the retinoblastoma protein Rb and the release of transcription factor E2F, inhibiting G1-S cell cycle progression and cell division. These findings illustrate the comprehensive effectiveness of S-4 and encourage future development of compounds of this type for cancer prevention and treatment.
Collapse
Affiliation(s)
- Ying Zhang
- Jacqui Wood Cancer Centre, School of Medicine, University of Dundee, Scotland, UK
| | | | - Young-Hoon Ahn
- Department of Chemistry, Wayne State University, Detroit, MI, USA
| | - Charlotte M Proby
- Jacqui Wood Cancer Centre, School of Medicine, University of Dundee, Scotland, UK
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, School of Medicine, University of Dundee, Scotland, UK; Department Pharmacology and Molecular Sciences and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| |
Collapse
|
11
|
Pereira BP, do Valle GT, Salles BCC, Costa KCM, Ângelo ML, Torres LHL, Novaes RD, Ruginsk SG, Tirapelli CR, de Araújo Paula FB, Ceron CS. Pyrrolidine dithiocarbamate reduces alloxan-induced kidney damage by decreasing nox4, inducible nitric oxide synthase, and metalloproteinase-2. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:1899-1910. [PMID: 32440769 DOI: 10.1007/s00210-020-01906-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 05/10/2020] [Indexed: 12/18/2022]
Abstract
We examined the effect of the NFκB inhibitor pyrrolidine-1-carbodithioic acid (PDTC) on inducible nitric oxide synthase (iNOS), matrix metalloproteinase-2 (MMP-2) activity, and oxidative and inflammatory kidney damage in alloxan-induced diabetes. Two weeks after diabetes induction (alloxan-130 mg/kg), control and diabetic rats received PDTC (100 mg/kg) or vehicle for 8 weeks. Body weight, glycemia, urea, and creatinine were measured. Kidney changes were measured in hematoxylin/eosin sections and ED1 by immunohistochemistry. Kidney thiobarbituric acid reactive substances (TBARS), superoxide anion (O2-), and nitrate/nitrite (NOx) levels, and catalase and superoxide dismutase (SOD) activities were analyzed. Also, kidney nox4 and iNOS expression, and NFkB nuclear translocation were measured by western blot, and MMP-2 by zymography. Glycemia and urea increased in alloxan rats, which were not modified by PDTC treatment. However, PDTC attenuated kidney structural alterations and macrophage infiltration in diabetic rats. While diabetes increased both TBARS and O2- levels, PDTC treatment reduced TBARS in diabetic and O2- in control kidneys. A decrease in NOx levels was found in diabetic kidneys, which was prevented by PDTC. Diabetes reduced catalase activity, and PDTC increased catalase and SOD activities in both control and diabetic kidneys. PDTC treatment reduced MMP-2 activity and iNOS and p65 NFκB nuclear expression found increased in diabetic kidneys. Our results show that the NFκB inhibitor PDTC reduces renal damage through reduction of Nox4, iNOS, macrophages, and MMP-2 in the alloxan-induced diabetic model. These findings suggest that PDTC inhibits alloxan kidney damage via antioxidative and anti-inflammatory mechanisms.
Collapse
Affiliation(s)
- Bruna Pinheiro Pereira
- Departamento de Alimentos e Medicamentos, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais,, Brazil
| | - Gabriel Tavares do Valle
- Escola de Enfermagem de Ribeirão Preto (EERP), Universidade de São Paulo - USP, Sao Paulo, Brazil
| | - Bruno César Côrrea Salles
- Departamento de Análises Clínicas, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais, Brazil
| | - Karla Cristinne Mancini Costa
- Departamento de Alimentos e Medicamentos, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais,, Brazil
| | - Marilene Lopes Ângelo
- Departamento de Alimentos e Medicamentos, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais,, Brazil
| | - Larissa Helena Lobo Torres
- Departamento de Alimentos e Medicamentos, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais,, Brazil
| | - Rômulo Dias Novaes
- Departamento de Biologia Estrutural, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais, Brazil
| | - Sílvia Graciela Ruginsk
- Departamento de Ciências Fisiológicas, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais, Brazil
| | - Carlos Renato Tirapelli
- Escola de Enfermagem de Ribeirão Preto (EERP), Universidade de São Paulo - USP, Sao Paulo, Brazil
| | | | - Carla Speroni Ceron
- Departamento de Alimentos e Medicamentos, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais,, Brazil.
| |
Collapse
|
12
|
Liang DS, Huang AR, Lin MM, Xia XJ, Jin YM. Pyrrolidine dithiocarbamate and dexamethasone are novel treatments of Acute Exogenous Lipoid Pneumonia. Cytokine 2020; 133:155122. [PMID: 32446224 DOI: 10.1016/j.cyto.2020.155122] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/29/2020] [Accepted: 05/06/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Acute exogenous lipoid pneumonia (AELP) is characterized by pulmonary inflammation. This mainly occur in children who have ingested sewing machine oil or other mineral oils accidentally. Despite emerging evidences revealing that inhibiting inflammation improves acute exogenous lipoid pneumonia, the actual process of inhibiting inflammation remains unknown. This study aimed to evaluate the effects of PDTC and dexamethasone on AELP to gain insight into the mechanism of AELP. METHODS The experimental rats were randomly divided into 10 groups: NS control group (NS3 group, NS5 group), Oil inhalation group (AE3 group, AE5 group), PDTC intervention group (PDTC3 group, PDTC5 group), DXM intervention group (DXM3 group, DXM5 group), PDTC + DXM combined intervention group (PDTC + DXM3 group, PDTC + DXM 5 group). Enzyme-linked immunosorbent assay (ELISA) was used to determine concentrations of macrophage migration inhibitory factor (MIF), interleukin-6 (IL-6) and tumor necrosis factor-α (TNFα) in bronchoalveolar lavage fluid (BALF) and serum samples. On the other hand, western blotting was used to measure the expression levels of nuclear factor-κB p65 (NF-κB p65) and b-cell leukemia 2 (Bcl-2) in the lungs. Hematoxylin and Eosin (H&E) staining was performed to evaluate changes in the lung tissue. The wet-to-dry lung weight ratio was subsequently used to determine the pulmonary edema of the lungs. RESULTS There were increased MIF levels in both serum and BALF samples of the AE group. Pyrrolidine dithiocarbamate (PDTC) and dexamethasone (DXM) independently and in combination reduced pulmonary inflammation induced by the sewing machine oil by regulating MIF expression. TNF-α and IL-6 levels in serum and BALF samples of the AE group were higher than those of the NS control animals. However, their levels decreased after treatment with either PDTC, DXM or PDTC + DXM. Similarly, NF-κBp65 expression increased after oil inhalation but decreased after treatment with either PDTC, DXM or PDTC + DXM. PDTC, DXM and PDTC + DXM treatment significantly reduced pulmonary inflammation and pulmonary edema of the lung tissue following induction of acute exogenous lipoid pneumonia. CONCLUSIONS Individual or combined use of PDTC and DXM can ameliorate pulmonary inflammation induced by inhalation of sewing machine oil by inhibiting the NF-κB pathway in young rats. These findings provide novel insights that will greatly contribute in treatment of AELP.
Collapse
Affiliation(s)
- Dong-Shi Liang
- Department of Pediatrics, Second Affiliated Hospital &Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Ai-Rong Huang
- Department of Pediatrics, Second Affiliated Hospital &Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Miao-Miao Lin
- Department of Pediatrics, Second Affiliated Hospital &Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Xiao-Jiao Xia
- Department of Pediatrics, Second Affiliated Hospital &Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Yi-Mei Jin
- Department of Pediatrics, Second Affiliated Hospital &Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China.
| |
Collapse
|
13
|
Jiang S, Su S, Chen M, Peng F, Zhou Q, Liu T, Liu L, Xue W. Antibacterial Activities of Novel Dithiocarbamate-Containing 4 H-Chromen-4-one Derivatives. J Agric Food Chem 2020; 68:5641-5647. [PMID: 32330023 DOI: 10.1021/acs.jafc.0c01652] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
To aid the development of novel antibacterial agents that possess a innovative mechanism of action, we built a series of novel dithiocarbamate-containing 4H-chromen-4-one derivatives. We evaluated the activities of the derivatives against three plant pathogens Xanthomonas oryzae pv oryzae (X. oryzae pv o.), Ralstonia solanacearum (R. solanacearum), and Xanthomonas axonopodis pv citri (X. axonopodis pv c.). The results of the antibacterial bioassay showed that most of the target compounds displayed good inhibitory effects against X. oryzae pv o. and X. axonopodis pv c. Remarkably, compound E6 showed the best in vitro antibacterial activity against X. axonopodis pv c., with an EC50 value of 0.11 μg/mL, which was better than those of thiodiazole copper (59.97 μg/mL) and bismerthiazol (48.93 μg/mL). Compound E14 exhibited the best in vitro antibacterial activity against X. oryzae pv o., with an EC50 value of 1.58 μg/mL, which was better than those of thiodiazole copper (83.04 μg/mL) and bismerthiazol (56.05 μg/mL). Scanning electron microscopy analysis demonstrated that compounds E6 and E14 caused the rupture or deformation of the cell membranes for X. axonopodis pv c. and X. oryzae pv o., respectively. In vivo antibacterial activity test and the defensive enzymes activity test results indicated that the compound E14 could reduce X. oryzae pv o. more effectively than thiodiazole-copper or bismerthiazol.
Collapse
Affiliation(s)
- Shichun Jiang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, and Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Shijun Su
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, and Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Mei Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, and Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Feng Peng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, and Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Qing Zhou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, and Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Tingting Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, and Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Liwei Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, and Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Wei Xue
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, and Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| |
Collapse
|
14
|
Samarkhazan NS, Yekta R, Sayadi M, Tackallou SH, Safaralizadeh R, Mahdavi M. 2-NDC from dithiocarbamates improves ATRA efficiency and ROS-induced apoptosis via downregulation of Bcl2 and Survivin in human acute promyelocytic NB4 cells. Hum Exp Toxicol 2020; 39:960-972. [PMID: 32096428 DOI: 10.1177/0960327120905958] [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] [Indexed: 11/15/2022]
Abstract
Although it has been widely considered that all-trans retinoic acid (ATRA) is an efficient therapeutic agent for acute promyelocytic leukemia (APL), there is an urgent need for extending and examining new therapeutics in medicine. Dithiocarbamates (DTCs) are one of the recent important chemical synthetic compounds used in cancer therapy. The aim of this study was to evaluate the apoptosis-inducing effect of 2-nitro-1-phenylethylpiperidine-1-carbodithioate (2-NDC) as an active derivative from DTCs, in combination with ATRA on human APL NB4 cells. The viability of treated NB4 cells was measured by 3-(4,5-dimethyltiazol-2-yl)-2,5-diphenyltetrazolium bromide assay in various concentrations (10-120 µM). The proapoptotic effects of 2-NDC were investigated by acridine orange/ethidium bromide staining, DNA ladder formation, and flow cytometry. We also assessed the oxidative stress-inducing effect of 2-NDC and in combination with ATRA on the NB4 cells. The alteration in gene expression levels of Bax, Bcl2, and Survivin was measured through a real-time polymerase chain reaction. Furthermore, we redetected the interaction between 2-NDC and antiapoptotic proteins Bcl2 and Survivin via molecular docking. We found that 2-NDC induced apoptosis in NB4 cells in a time-dosage-dependent manner. Also, 2-NDC triggered apoptosis by expanding intracellular reactive oxygen species, combined with ATRA. Bax/Bcl2 ratio was modulated and Survivin was downregulated in NB4 cells upon 2-NDC treatment. Molecular docking studies indicated that 2-NDC binds to the baculovirus inhibitor of apoptosis protein repeat domain of Survivin and Bcl homology 3 domain of Bcl2 with various affinities. Based on the present observations, it seems that this derivative can be estimated as an appropriate candidate for future pharmaceutical evaluations.
Collapse
Affiliation(s)
- N S Samarkhazan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - R Yekta
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - M Sayadi
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - S H Tackallou
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - R Safaralizadeh
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - M Mahdavi
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| |
Collapse
|
15
|
Adeyemi JO, Onwudiwe DC. Chemistry and Some Biological Potential of Bismuth and Antimony Dithiocarbamate Complexes. Molecules 2020; 25:molecules25020305. [PMID: 31940910 PMCID: PMC7024263 DOI: 10.3390/molecules25020305] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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: 12/14/2019] [Revised: 01/04/2020] [Accepted: 01/07/2020] [Indexed: 12/04/2022] Open
Abstract
Interest in the synthesis of Bi(III) and Sb(III) dithiocarbamate complexes is on the rise, and this has been attributed to their wide structural diversity and their interesting application as biological agents and in solid state/materials chemistry. The readily available binding sites of the two sulphur atoms within the dithiocarbamate moiety in the complexes confers a wide variety of geometry and interactions that often leads to supramolecular assemblies. Although none of the bismuth or antimony metals are known to play any natural biological function, their dithiocarbamate complexes, however, have proven very useful as antibacterial, antileishmanial, anticancer, and antifungal agents. The dithiocarbamate ligands modulate the associated toxicity of the metals, especially antimony, since bismuth is known to be benign, allowing the metal ion to get to the targeted sites; hence, making it less available for side and other damaging reactions. This review presents a concise chemistry and some known biological potentials of their trivalent dithiocarbamate complexes.
Collapse
Affiliation(s)
- Jerry O. Adeyemi
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Science, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa;
- Department of Chemistry, Faculty of Natural and Agricultural Science, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
| | - Damian C. Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Science, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa;
- Department of Chemistry, Faculty of Natural and Agricultural Science, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
- Correspondence: ; Tel.: +27-18-389-2545
| |
Collapse
|
16
|
Mao L, Jiang H, Zhang L, Zhang Y, Sial MU, Yu H, Cao A. Assessment of the potential of a reduced dose of dimethyl disulfide plus metham sodium on soilborne pests and cucumber growth. Sci Rep 2019; 9:19806. [PMID: 31875039 PMCID: PMC6930289 DOI: 10.1038/s41598-019-56450-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 01/30/2019] [Accepted: 12/12/2019] [Indexed: 11/23/2022] Open
Abstract
Methyl bromide (MB), a dominant ozone-depleting substance, is scheduled to be completely phased out for soil fumigation by December 30th 2018, in China. The combined effects of dimethyl disulfide (DMDS) plus metham sodium (MNa) were assessed in controlling soilborne pests for soil fumigation. A study was designed in laboratory for the evaluation of the efficacy of DMDS + MNa to control major soilborne pests. At the same time, two trials were conducted in cucumber field located in Tongzhou (in 2012) and Shunyi (in 2013), respectively, in order to assess the potential of DMDS + MNa in controlling soilborne pests. Laboratory studies disclosed positive synergistic effects of almost all four used combinations on Meloidogyne spp., Fusarium spp., Phytophthora spp., Abutilon theophrasti and Digitaria sanguinalis. Field trials found that DMDS + MNa (30 + 21 g a. i. m-2), both at a 50% reduced dose, effectively suppressed Meloidogyne spp. with a low root galling index (2.1% and 11.7%), significantly reduced the levels of Phytophthora and Fusarium spp. with a low root disease index (7.5% and 15.8%), gave very high cucumber yields (6.75 kg m-2 and 10.03 kg m-2), and increased income for cucumber growers with the highest economic benefits (20.91 ¥ m-2 and 23.58 ¥ m-2). The combination treatment provided similar results as MB standard dose treatment (40 g a. i. m-2) or DMDS standard dose treatment (60 g a. i. m-2) in pest control and yield, but was more effective than MNa standard dose treatment (42 g a. i. m-2). Usage of all chemical treatments gave better significant results than the untreated group of control. Considering the economic benefits, the DMDS plus MNa combination (30 + 21 g a. i. m-2) could be used for soil fumigation in cucumber production in China.
Collapse
Affiliation(s)
- Liangang Mao
- Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agriproduct Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Hongyun Jiang
- Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agriproduct Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China.
| | - Lan Zhang
- Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agriproduct Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Yanning Zhang
- Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agriproduct Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Muhammad Umair Sial
- Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agriproduct Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Haitao Yu
- Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agriproduct Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Aocheng Cao
- Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agriproduct Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| |
Collapse
|
17
|
Ge Y, Xu LW, Liu Y, Sun LY, Gao H, Li JQ, Yang K. Dithiocarbamate as a Valuable Scaffold for the Inhibition of Metallo-β-Lactmases. Biomolecules 2019; 9:biom9110699. [PMID: 31694268 PMCID: PMC6920875 DOI: 10.3390/biom9110699] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 10/11/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 01/02/2023] Open
Abstract
The 'superbug' infection caused by metallo-β-lactamases (MβLs) has grown into an emergent health threat. Given the clinical importance of MβLs, a novel scaffold, dithiocarbamate, was constructed. The obtained molecules, DC1, DC8 and DC10, inhibited MβLs NDM-1, VIM-2, IMP-1, ImiS and L1 from all three subclasses, exhibiting an IC50 < 26 μM. DC1 was found to be the best inhibitor of ImiS (IC50 < 0.22 μM). DC1-2, DC4, DC8 and DC10 restored antimicrobial effects of cefazolin and imipenem against E. coli-BL21, producing NDM-1, ImiS or L1, and DC1 showed the best inhibition of E. coli cells, expressing the three MβLs, resulting in a 2-16-fold reduction in the minimum inhibitory concentrations (MICs) of both antibiotics. Kinetics and isothermal titration calorimetry (ITC) assays showed that DC1 exhibited a reversible, and partially mixed inhibition, of NDM-1, ImiS and L1, with Ki values of 0.29, 0.14 and 5.06 µM, respectively. Docking studies suggest that the hydroxyl and carbonyl groups of DC1 form coordinate bonds with the Zn (II) ions, in the active center of NDM-1, ImiS and L1, thereby inhibiting the activity of the enzymes. Cytotoxicity assays showed that DC1, DC3, DC7 and DC9 have low toxicity in L929 mouse fibroblastic cells, at a dose of up to 250 μM. These studies revealed that the dithiocarbamate is a valuable scaffold for the development of MβLs inhibitors.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Kewu Yang
- Correspondence: ; Tel./Fax: +86-29-8153-5035
| |
Collapse
|
18
|
Xu F, Hou BL, Wang Y, Meng FZ, Zhuang CN, Pan QZ, Ren SP. Combination of PDTC and GBE Could Better Alleviate the Damage to HaCaT Cells Caused by UVB. Biomed Environ Sci 2019; 32:779-782. [PMID: 31843047 DOI: 10.3967/bes2019.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 08/30/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Feng Xu
- Department of Nephrology, the Second Hospital of Jilin University, Changchun 130041, Jilin, China
| | - Bao Lian Hou
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin, China
| | - Yuan Wang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin, China
| | - Fan Zhu Meng
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin, China
| | - Chuan Ning Zhuang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin, China
| | - Qi Zheng Pan
- Department of Anesthesia, China-Japan Union Hospital, Jilin University, Changchun 130033, Jilin, China
| | - Shu Ping Ren
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin, China
| |
Collapse
|
19
|
Abstract
In addition to nitric oxide and carbon monoxide, hydrogen sulfide (H2S) has been recently recognized as an important biological signaling molecule with implications in a wide variety of processes, including vasodilation, cytoprotection, and neuromodulation. In parallel to the growing number of reports highlighting the biological impact of H2S, interest in developing H2S donors as both research tools and potential therapeutics has led to the growth of different H2S-releasing strategies. Many H2S investigations in model systems use direct inhalation of H2S gas or aqueous solutions of NaSH or Na2S; however, such systems do not mimic endogenous H2S production. This stark contrast drives the need to develop better sources of caged H2S. To address these limitations, different small organosulfur donor compounds have been prepared that release H2S in the presence of specific activators or triggers. Such compounds, however, often lack suitable control compounds, which limits the use of these compounds in probing the effects of H2S directly. To address these needs, our group has pioneered the development of carbonyl sulfide (COS) releasing compounds as a new class of H2S donor motifs. Inspired by a commonly used carbamate prodrug scaffold, our approach utilizes self-immolative thiocarbamates to access controlled release of COS, which is rapidly converted to H2S by the ubiquitous enzyme carbonic anhydrase (CA). In addition, this design enables access to key control compounds that release CO2/H2O rather than COS/H2S, which enables delineation of the effects of COS/H2S from the organic donor byproducts. In this Account, we highlight a library of first-generation COS/H2S donors based on self-immolative thiocarbamates developed in our lab and also highlight challenges related to H2S donor development. We showcase the release of COS in the presence of specific triggers and activators, including biological thiols and bio-orthogonal reactants for targeted applications. We also demonstrate the design and development of a series of H2O2/reactive oxygen species (ROS)-triggered donors and show that such compounds can be activated by endogenous levels of ROS production. Utilizing approaches in bio-orthogonal activation, we establish that donors functionalized with an o-nitrobenzyl photocage can enable access to light-activated donors. Similar to endogenous production by cysteine catabolism, we also prepared a cysteine-selective COS donor activated by a Strongin ligation mechanism. In efforts to help delineate potential differences in the chemical biology of COS and H2S, we also report a simple esterase-activated donor, which demonstrated fast COS-releasing kinetics and inhibition of mitochondrial respiration in BEAS-2B cells. Additional investigations revealed that COS release rates and cytotoxicity correlated directly within this series of compounds with different ester motifs. In more recent and applied applications of this H2S donation strategy, we also highlight the development of donors that generate either a colorimetric or fluorescent optical response upon COS release. Overall, the work described in this Account outlines the development and initial application of a new class of H2S donors, which we anticipate will help to advance our understanding of the rapidly emerging chemical biology of H2S and COS.
Collapse
Affiliation(s)
| | | | - Michael D. Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Institute of Molecular Biology, University of Oregon, Eugene, Oregon, 97403, USA
| |
Collapse
|
20
|
Zhao Y, Steiger AK, Pluth MD. Cyclic Sulfenyl Thiocarbamates Release Carbonyl Sulfide and Hydrogen Sulfide Independently in Thiol-Promoted Pathways. J Am Chem Soc 2019; 141:13610-13618. [PMID: 31373809 PMCID: PMC7023849 DOI: 10.1021/jacs.9b06319] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Hydrogen sulfide (H2S) is an important signaling molecule that provides protective activities in a variety of physiological and pathological processes. Among the different types of H2S donor compounds, thioamides have attracted attention due to prior conjugation to nonsteroidal anti-inflammatory drugs (NSAIDs) to access H2S-NSAID hybrids with significantly reduced toxicity, but the mechanism of H2S release from thioamides remains unclear. Herein, we reported the synthesis and evaluation of a class of thioamide-derived sulfenyl thiocarbamates (SulfenylTCMs) that function as a new class of H2S donors. These compounds are efficiently activated by cellular thiols to release carbonyl sulfide (COS), which is quickly converted to H2S by carbonic anhydrase (CA). In addition, through mechanistic investigations, we establish that COS-independent H2S release pathways are also operative. In contrast to the parent thioamide-based donors, the SulfenylTCMs exhibit excellent H2S releasing efficiencies of up to 90% and operate through mechanistically well-defined pathways. In addition, we demonstrate that the sulfenyl thiocarbamate group is readily attached to common NSAIDs, such as naproxen, to generate YZ-597 as an efficient H2S-NSAID hybrid, which we demonstrate releases H2S in cellular environments. Taken together, this new class of H2S donor motifs provides an important platform for new donor development.
Collapse
Affiliation(s)
- Yu Zhao
- Department of Chemistry and Biochemistry, Institute of Molecular Biology, Materials Science Institute, University of Oregon, Eugene, Oregon 97403, USA
| | - Andrea K. Steiger
- Department of Chemistry and Biochemistry, Institute of Molecular Biology, Materials Science Institute, University of Oregon, Eugene, Oregon 97403, USA
| | - Michael D. Pluth
- Department of Chemistry and Biochemistry, Institute of Molecular Biology, Materials Science Institute, University of Oregon, Eugene, Oregon 97403, USA
| |
Collapse
|
21
|
Duan PY, Ma Y, Li XN, Qu FZ, Ji L, Guo XY, Zhang WJ, Xiao F, Li L, Hu JS, Sun B, Wang G. Inhibition of RIPK1-dependent regulated acinar cell necrosis provides protection against acute pancreatitis via the RIPK1/NF-κB/AQP8 pathway. Exp Mol Med 2019; 51:1-17. [PMID: 31375658 PMCID: PMC6802613 DOI: 10.1038/s12276-019-0278-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [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: 06/03/2018] [Revised: 01/22/2019] [Accepted: 03/06/2019] [Indexed: 12/20/2022] Open
Abstract
Currently, preliminary results have confirmed the existence of receptor-interacting protein kinase 3 (RIPK3) and mixed lineage kinase domain-like protein (MLKL)-dependent necroptosis of pancreatic acinar cells during early acute pancreatitis (AP), which might be a potential target for the effective regulation of necroinflammatory injury. However, the exact effect of receptor-interacting protein kinase 1 (RIPK1)-dependent regulated acinar cell necrosis on AP is still uncertain. In our study, we first explored the changes in the degree of local and systemic inflammation in AP rats when the activation of acinar cell RIPK1 was inhibited. The RIPK1 inhibitor Nec-1 was used to treat rats, and the levels of related inflammatory markers, necrosis indicators and apoptotic indicators were measured. Changes in pancreatic nuclear factor κB (NF-κB) and aquaporin 8 (AQP8) expression were noted. Next, the expression of AQP8 in AR42J cells was inhibited, and the degree of cell necrosis and inflammatory damage was found to be significantly reduced. Most importantly, we demonstrated that the RIPK1/NF-ĸB/AQP8 axis might be a potential regulatory pathway mediating RIPK1-dependent regulated acinar cell necrosis in early AP. Finally, we used the NF-κB inhibitor PDTC and Nec-1 to treat rats in different groups and measured the degree of pathological pancreatic injury, the activation of RIPK1, and the expression of NF-κB and AQP8. In summary, we hypothesized that there might be a RIPK1/NF-ĸB/AQP8 pathway controlling RIPK1-dependent regulated necrosis of acinar cells in AP, which might be a promising therapeutic target against AP-related injury.
Collapse
Affiliation(s)
- Peng-Yu Duan
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Yuan Ma
- Department of Medical Administration, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Xi-Na Li
- Department of Pharmacy, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Feng-Zhi Qu
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Liang Ji
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Xiao-Yu Guo
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Wang-Jun Zhang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Fan Xiao
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Le Li
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ji-Sheng Hu
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Gang Wang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
| |
Collapse
|
22
|
Naveed M, Khan SZ, Zeeshan S, Khan A, Shal B, Atiq A, Ali H, Ullah R, Zia-Ur-Rehman, Khan S. A new cationic palladium(II) dithiocarbamate exhibits anti-inflammatory, analgesic, and antipyretic activities through inhibition of inflammatory mediators in in vivo models. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:961-977. [PMID: 30968231 DOI: 10.1007/s00210-019-01645-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/12/2019] [Indexed: 12/13/2022]
Abstract
Inflammation is being a protective mechanism of the body towards the injury. However, chronic and progressive inflammation may lead to some chronic diseases. Due to the serious unwanted effects associated with available drugs, new and safe anti-inflammatory agents are still required. Therefore, the present study was designed to investigate the anti-inflammatory, analgesics, and antipyretic properties of a new compound (4-benzylpiperidine-1-carbodithioato-κ2S,S')(1,4-bis-(diphenylphosphino)butane)palladium(II)chloride monohydrate (compound-1) in albino mice models. Compound-1 was characterized by elemental analysis, FT-IR, and multinuclear NMR spectroscopy. Initially, compound-1 was evaluated for cytotoxicity, anti-inflammatory, and analgesic activities by performing MTT assay, carrageenan-, histamine-, serotonin-, and CFA-induced paw edema, mechanical hyperalgesia, thermal hyperalgesia, and mechanical allodynia (0.1, 1, and 10 mg/kg, b.w). Antipyretic activity was evaluated in brewer's yeast-induced model. The pro-inflammatory cytokines were measured by using commercially available ELISA kits. Additionally, nitrite production, antioxidant enzymes, H&E staining, muscle activity and motor coordination, and kidney and liver function tests were also determined. The results demonstrated that compound-1 significantly inhibited inflammation, pain, and febrile responses in all models at a dose of 10 mg/kg without effecting viability of cells in vitro at concentrations up to 100 μM. Similarly, the data clearly demonstrated significant reduction in the pro-inflammatory cytokines and nitrite production while enhancing antioxidant enzymes. Furthermore, pretreatment with compound-1 did not produce any prominent side effect on kidney, liver, stomach, and muscles. These findings suggest that compound-1 has potent anti-inflammatory-, pain-, and pyrexia-relieving properties. Hence, compound-1 might be a potential candidate for the therapeutic management of chronic inflammation and pain.
Collapse
Affiliation(s)
- Muhammad Naveed
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Shahan Zeb Khan
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
- Department of Chemistry, University of Science and Technology, Bannu, KPK, 28100, Pakistan
| | - Sara Zeeshan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Adnan Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Bushra Shal
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ayesha Atiq
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Hussain Ali
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Rahim Ullah
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Zia-Ur-Rehman
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
| | - Salman Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
| |
Collapse
|
23
|
Li S, Fang J, Chen L. Pyrrolidine Dithiocarbamate Attenuates Cardiocyte Apoptosis and Ameliorates Heart Failure Following Coronary Microembolization in Rats. Balkan Med J 2019; 36:245-250. [PMID: 31140237 PMCID: PMC6636647 DOI: 10.4274/balkanmedj.galenos.2019.2019.3.8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 03/06/2019] [Accepted: 05/28/2019] [Indexed: 12/01/2022] Open
Abstract
Background Nuclear factor-kB is highly activated in cardiovascular disorders. However, few articles have targeted at the role of nuclear factor-kB inhibitor in heart failure. Aims To evaluate the effects of nuclear factor-kB inhibitor pyrrolidine dithiocarbamate on cardiocyte apoptosis and cardiac function in a rat heart failure model. Study Design Animal experiment. Methods A stable and reproducible rat heart failure model (n=64) was prepared by injecting homologous microthrombotic particles into the left ventricle of Sprague–Dawley rats while obstructing the ascending aorta to produce coronary microembolization. Rats with heart failure were randomized into untreated (HFu) and pyrrolidine dithiocarbamate-treated (HFp) groups; the latter received an intraperitoneal injection of pyrrolidine dithiocarbamate (100 mg/kg/day) 1 h prior to surgery as well as on postoperative days 1-7. The sham group comprised 32 Sprague–Dawley rats. Eight rats from each group were sacrificed on days 1, 3, 7, and 14 postoperatively. Masson’s trichrome staining was used to determine the micro-fibrotic area to indicate the severity of myocardial loss. Terminal transferase uridine triphosphate nick end labeling staining was used to detect apoptotic cardiomyocytes. Echocardiography and hemodynamics were performed to evaluate left ventricular function. Results Rats with heart failure exhibited pathological changes evidenced by patchy myocardial fibrosis, remarkably elevated severity of myocardial loss, and persistently reduced left ventricular function. At the end of the study, compared with the HFu group, myocardial infarct size was reduced by 28% (p=0.001), cardiocyte apoptosis was suppressed (7.17%±1.47% vs 2.83%±0.75%, p<0.001), cardiac function parameters such as left ventricular ejection fraction (80%±4% vs 61%±6%), left ventricular + dP/dt max (4828±289 vs 2918±76 mmHg.s−1), left ventricular - dP/dt max (4398±269 vs 2481±365 mmHg.s−1), and left ventricular systolic pressure (126±13 vs 100±10 mmHg) were significantly increased, and left ventricular end-diastolic pressure was reduced (18±2 vs 13±1 mmHg) (p<0.001, for all) in the HFu group. Conclusion Our rat model can adequately mimic heart failure via coronary vessel embolization. Moreover, pyrrolidine dithiocarbamate treatment can reduce cardiocyte apoptosis and improve cardiac function, which may be beneficial for patients with heart failure secondary to myocardial infarction.
Collapse
Affiliation(s)
- Shumei Li
- Department of Cardiology, Union Hospital, Fujian Medical University, Fujian, China
| | - Jun Fang
- Department of Cardiology, Union Hospital, Fujian Medical University, Fujian, China
| | - Lianglong Chen
- Department of Cardiology, Union Hospital, Fujian Medical University, Fujian, China
| |
Collapse
|
24
|
Liu B, Yuan X, Xu B, Zhang H, Li R, Wang X, Ge Z, Li R. Synthesis of novel 7-azaindole derivatives containing pyridin-3-ylmethyl dithiocarbamate moiety as potent PKM2 activators and PKM2 nucleus translocation inhibitors. Eur J Med Chem 2019; 170:1-15. [PMID: 30878825 DOI: 10.1016/j.ejmech.2019.03.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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: 12/28/2018] [Revised: 02/19/2019] [Accepted: 03/01/2019] [Indexed: 12/16/2022]
Abstract
Multiple lines of evidence have indicated that pyruvate kinase M2 (PKM2) is upregulated in most cancer cells and it is increasingly recognized as a potential therapeutic target in oncology. In a continuation of our discovery of lead compound 5 and SAR study, the 7-azaindole moiety in compound 5 was systematically optimized. The results showed that compound 6f, which has a difluoroethyl substitution on the 7-azaindole ring, exhibited high PKM2 activation potency and anti-proliferation activities on A375 cell lines. In a xenograft mouse model, oral administration of compound 6f led to significant tumor regression without obvious toxicity. Further mechanistic studies revealed that 6f could influence the translocation of PKM2 into nucleus, as well as induction of apoptosis and autophagy of A375 cells. More importantly, compound 6f significantly inhibited migration of A375 cells in a concentration-dependent manner. Collectively, 6f may serve as a lead compound in the development of potent PKM2 activators for cancer therapy.
Collapse
Affiliation(s)
- Bin Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Xia Yuan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Bo Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Han Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Ridong Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Xin Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Zemei Ge
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.
| | - Runtao Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.
| |
Collapse
|
25
|
Xu MX, Ge CX, Qin YT, Gu TT, Lou DS, Li Q, Hu LF, Feng J, Huang P, Tan J. Prolonged PM2.5 exposure elevates risk of oxidative stress-driven nonalcoholic fatty liver disease by triggering increase of dyslipidemia. Free Radic Biol Med 2019; 130:542-556. [PMID: 30465824 DOI: 10.1016/j.freeradbiomed.2018.11.016] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/15/2018] [Accepted: 11/16/2018] [Indexed: 12/18/2022]
Abstract
An increasing number of studies have shown that air pollution containing particulate matter (PM) ≤ 2.5 µm (PM2.5) plays a significant role in the development of metabolic disorder and other chronic diseases. Inflammation and oxidative stress caused by metabolic syndrome are widely determined to be critical factors in the development of nonalcoholic fatty liver disease (NAFLD) pathogenesis. However, there is no direct evidence of this, and the underlying molecular mechanism is still not fully understood. In this study, we investigated the role of inflammation and oxidative stress caused by prolonged PM2.5 exposure in dyslipidemia-associated chronic hepatic injury, and further determined whether an increase in hepatic inflammation and oxidative stress promoted lipid accumulation in the liver, ultimately increasing the risk of NAFLD. Therefore, we studied changes in indicators of metabolic disorder and in symbolic indices of NAFLD. We confirmed increases in insulin resistance, glucose tolerance, peripheral inflammation and dysarteriotony in PM2.5-induced mice. Oxidative stress and inflammatory response in the liver caused by PM2.5 inhalation contributed to abnormal hepatic function, further promoting lipid accumulation in the liver. Moreover, we observed inhibition of oxidative stress and inflammatory response by pyrrolidine dithiocarbamate (PDTC) and N-acetyl-L-cysteine (NAC) in vitro, suggesting that oxidative stress and inflammatory in liver cells aggravated by PM2.5 contributed to hepatic injury by altering normal lipid metabolism. These results indicate a new goal for preventing and treating air pollution-induced diseases: suppression of oxidative stress and inflammatory response.
Collapse
Affiliation(s)
- Min-Xuan Xu
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region, School of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, PR China; Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years, Chongqing University of Education, Chongqing 400067, PR China.
| | - Chen-Xu Ge
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region, School of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, PR China; Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years, Chongqing University of Education, Chongqing 400067, PR China
| | - Yu-Ting Qin
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266100, PR China
| | - Ting-Ting Gu
- College of Engineering and Applied Sciences, Nanjing University, Nanjing 210023, PR China
| | - De-Shuai Lou
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region, School of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, PR China; Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years, Chongqing University of Education, Chongqing 400067, PR China
| | - Qiang Li
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region, School of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, PR China; Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years, Chongqing University of Education, Chongqing 400067, PR China
| | - Lin-Feng Hu
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region, School of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, PR China; Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years, Chongqing University of Education, Chongqing 400067, PR China
| | - Jing Feng
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region, School of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, PR China
| | - Ping Huang
- Department Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400000, PR China
| | - Jun Tan
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region, School of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, PR China; Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years, Chongqing University of Education, Chongqing 400067, PR China.
| |
Collapse
|
26
|
Li X, Wu J, Zhang X, Chen W. Glutathione reductase-mediated thiol oxidative stress suppresses metastasis of murine melanoma cells. Free Radic Biol Med 2018; 129:256-267. [PMID: 30086340 DOI: 10.1016/j.freeradbiomed.2018.07.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 02/06/2023]
Abstract
Malignant melanoma is a highly metastatic and life-threatening cancer. Reactive oxygen species (ROS) play important roles in cancer initiation and progression including metastasis. It has been reported that the oxidative stress spontaneously generated in circulating melanoma cells was able to suppress distant metastasis in vivo. However, little is known regarding the effects and mechanism of glutathione reductase (GR) inhibition-induced oxidative stress in regulation of melanoma metastasis. Here, we demonstrate that GR inhibition generates oxidative stress and suppresses lung metastasis and subcutaneous growth of melanoma in vivo. In addition, inhibitory effects by GR activity reduction were observed on cell proliferation, colony formation, cell adhesion, migration and invasion in melanoma cells in vitro. GR inhibition-induced oxidative stress was also found to block epithelial-to-mesenchymal transition (EMT) by decreasing the expression of Vimentin, ERK1/2, transcription factor Snail and increasing the expression of E-cadherin. In addition, actin rearrangement, a key element involved in cell motility, was also affected by GR-mediated oxidative stress possibly through protein S-glutathionylation on actin. In conclusion, this study identifies GR as an effective regulator of oxidative stress that affects the multistep processes of metastasis in melanoma cells, and it becomes a potential target for melanoma therapy.
Collapse
Affiliation(s)
- Xia Li
- Zhejiang Cancer Research Institute, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province 310022, China; Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province 310022, China
| | - Junzhou Wu
- Zhejiang Cancer Research Institute, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province 310022, China
| | - Xiaoying Zhang
- ACEA Bio CO., Ltd., Hangzhou, Zhejiang Province 310030, China
| | - Wei Chen
- Zhejiang Cancer Research Institute, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province 310022, China; Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province 310022, China.
| |
Collapse
|
27
|
Bua S, Bozdag M, Del Prete S, Carta F, Donald WA, Capasso C, Supuran CT. Mono- and di-thiocarbamate inhibition studies of the δ-carbonic anhydrase TweCAδ from the marine diatom Thalassiosira weissflogii. J Enzyme Inhib Med Chem 2018; 33:707-713. [PMID: 29577755 PMCID: PMC6010021 DOI: 10.1080/14756366.2018.1450400] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 02/04/2018] [Revised: 03/02/2018] [Accepted: 03/05/2018] [Indexed: 11/08/2022] Open
Abstract
The inhibition of the δ-class carbonic anhydrase (CAs, EC 4.2.1.1) from the diatom Thalassiosira weissflogii, TweCAδ, was investigated using a panel of 36 mono- and di-thiocarbamates chemotypes that have recently been shown to inhibit mammalian and pathogenic CAs belonging to the α- and β-classes. TweCAδ was not significantly inhibited by most of such compounds (KI values above 20 µM). However, some aliphatic, heterocyclic, and aromatic mono and di-thiocarbamates inhibited TweCAδ in the low micromolar range. For some compounds incorporating the piperazine ring, TweCAδ was effectively inhibited (KIs from 129 to 791 nM). The most effective inhibitors identified in this study were 3,4-dimethoxyphenyl-ethyl-mono-thiocarbamate (KI of 67.7 nM) and the R-enantiomer of the nipecotic acid di-thiocarbamate (KI of 93.6 nM). Given that the activity and inhibition of this class of enzyme have received limited attention until now, this study provides new molecular probes and information for investigating the role of δ-CAs in the carbon fixation processes in diatoms, which are responsible for significant amounts of CO2 taken from the atmosphere by these marine organisms.
Collapse
Affiliation(s)
- Silvia Bua
- Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
| | - Murat Bozdag
- Department of Chemistry, Università degli Studi di Firenze, Florence, Italy
| | - Sonia Del Prete
- Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
- CNR, Istituto di Bioscienze e Biorisorse, Napoli, Italy
| | - Fabrizio Carta
- Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
| | - William A. Donald
- School of Chemistry, University of New South Wales, Sydney, Australia
| | | | - Claudiu T. Supuran
- Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
- School of Chemistry, University of New South Wales, Sydney, Australia
| |
Collapse
|
28
|
Shin EJ, Hwang YG, Pham DT, Lee JW, Lee YJ, Pyo D, Jeong JH, Lei XG, Kim HC. Glutathione peroxidase-1 overexpressing transgenic mice are protected from neurotoxicity induced by microcystin-leucine-arginine. Environ Toxicol 2018; 33:1019-1028. [PMID: 30076769 DOI: 10.1002/tox.22580] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 05/15/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
Although it has been well-recognized that microcystin-leucine-arginine (MCLR), the most common form of microcystins, induces neurotoxicity, little is currently known about the underlying mechanism for this neurotoxicity. Here, we found that MCLR (10 ng/μL/mouse, i.c.v.) induces significant neuronal loss in the hippocampus of mice. MCLR-induced neurotoxicity was accompanied by oxidative stress, as shown by a significant increase in the level of 4-hydroxynonenal, protein carbonyl, and reactive oxygen species (ROS). Superoxide dismutase-1 (SOD-1) activity was significantly increased, but glutathione peroxidase (GPx) level was significantly decreased following MCLR insult. In addition, MCLR significantly inhibited GSH/GSSG ratio, and significantly induced NFκB DNA binding activity. Because reduced activity of GPx appeared to be critical for the imbalance between activities of SODs and GPx, we utilized GPx-1 overexpressing transgenic mice to ascertain the role of GPx-1 in this neurotoxicity. Genetic overexpression of GPx-1 or NFκB inhibitor pyrrolidine dithiocarbamate (PDTC) significantly attenuated MCLR-induced hippocampal neuronal loss in mice. However, PDTC did not exert any additive effect on neuroprotection mediated by GPx-1 overexpression, indicating that NFκB is a neurotoxic target of MCLR. Combined, these results suggest that MCLR-induced neurotoxicity requires oxidative stress associated with failure in compensatory induction of GPx, possibly through activation of the transcription factor NFκB.
Collapse
Affiliation(s)
- Eun-Joo Shin
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Republic of Korea
| | - Yeong Gwang Hwang
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Republic of Korea
| | - Duc Toan Pham
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Republic of Korea
| | - Ji Won Lee
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Republic of Korea
| | - Yu Jeung Lee
- Clinical Pharmacy, College of Pharmacy, Kangwon National University, Republic of Korea
| | - Dongjin Pyo
- Department of Chemistry, College of Natural Sciences, Kangwon National University, Republic of Korea
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Xin Gen Lei
- Department of Animal Science, Cornell University, New York
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Republic of Korea
| |
Collapse
|
29
|
Guo F, Tang C, Li Y, Liu Y, Lv P, Wang W, Mu Y. The interplay of LncRNA ANRIL and miR-181b on the inflammation-relevant coronary artery disease through mediating NF-κB signalling pathway. J Cell Mol Med 2018; 22:5062-5075. [PMID: 30079603 PMCID: PMC6156284 DOI: 10.1111/jcmm.13790] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [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: 05/29/2018] [Accepted: 06/16/2018] [Indexed: 12/19/2022] Open
Abstract
This study was designed to investigate whether ANRIL affected the aetiology of coronary artery disease (CAD) by acting on downstream miR-181b and NF-κB signalling. Altogether 327 CAD patients diagnosed by angiography were included, and mice models of CAD were established. Human coronary endothelial cells (HCAECs) and human umbilical vein endothelial cells (HUVECs) were also purchased. In addition, shRNA-ANRIL, shRNA-NC, pcDNA3.1-ANRIL, miR-181b mimic, miR-181b inhibitor and miR-NC were transfected into the cells. The lipopolysaccharides (LPS) and pyrrolidine dithiocarbamate (PDTC) were also added to activate or deactivate NF-κB signalling. Both highly expressed ANRIL and lowly expressed miR-181b were associated with CAD population aged over 60 years old, with smoking history, with hypertension and hyperlipidemia, with CHOL H 4.34 mmol/L, TG ≥ 1.93 mmol/L and Hcy ≥ 16.8 μmol/L (all P < 0.05). Besides, IL-6, IL-8, NF-κB, TNF-α, iNOS, ICAM-1, VCAM-1 and COX-2 expressions observed within AD mice models were all beyond those within NC and sham-operated groups (P < 0.05). Also VEGF and HSP 70 were highly expressed within AD mice models than within NC and sham-operated mice (P < 0.05). Transfection of either pcDNA-ANRIL or miR-181b inhibitor could significantly fortify HCAECs' viability and put on their survival rate. At the meantime, the inflammatory factors and vascular-protective parameters were released to a greater level (P < 0.05). Finally, highly expressed ANRIL also notably bring down miR-181b expression and raise p50/p65 expressions within HCAECs (P < 0.05). The joint role of ANRIL, miR-181b and NF-κB signalling could aid in further treating and diagnosing CAD.
Collapse
Affiliation(s)
- Feng Guo
- Department of EmergencyThe 455th Hospital of Chinese People's Liberation ArmyShanghaiChina
| | - Chengchun Tang
- Department of CardiologyZhongda Hospital Southeast UniversityNanjingChina
| | - Yawei Li
- Department of EmergencyThe 455th Hospital of Chinese People's Liberation ArmyShanghaiChina
| | - Yuqing Liu
- Department of EmergencyThe 455th Hospital of Chinese People's Liberation ArmyShanghaiChina
| | - Ping Lv
- Department of EmergencyThe 455th Hospital of Chinese People's Liberation ArmyShanghaiChina
| | - Wei Wang
- Department of EmergencyThe 455th Hospital of Chinese People's Liberation ArmyShanghaiChina
| | - Yongyong Mu
- Department of EmergencyThe 455th Hospital of Chinese People's Liberation ArmyShanghaiChina
| |
Collapse
|
30
|
Sekiguchi F, Domoto R, Nakashima K, Yamasoba D, Yamanishi H, Tsubota M, Wake H, Nishibori M, Kawabata A. Paclitaxel-induced HMGB1 release from macrophages and its implication for peripheral neuropathy in mice: Evidence for a neuroimmune crosstalk. Neuropharmacology 2018; 141:201-213. [PMID: 30179591 DOI: 10.1016/j.neuropharm.2018.08.040] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [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: 03/22/2018] [Revised: 08/01/2018] [Accepted: 08/31/2018] [Indexed: 12/21/2022]
Abstract
Given our recent evidence for the role of high mobility group box 1 (HMGB1) in chemotherapy-induced peripheral neuropathy (CIPN) in rats, we examined the origin of HMGB1 and the upstream and downstream mechanisms of HMGB1 release involved in paclitaxel-induced neuropathy in mice. Paclitaxel treatment developed mechanical allodynia in mice, as assessed by von Frey test, which was prevented by an anti-HMGB1-neutralizing antibody or thrombomodulin alfa capable of inactivating HMGB1. RAGE or CXCR4 antagonists, ethyl pyruvate or minocycline, known to inhibit HMGB1 release from macrophages, and liposomal clodronate, a macrophage depletor, prevented the paclitaxel-induced allodynia. Paclitaxel caused upregulation of RAGE and CXCR4 in the dorsal root ganglia and macrophage accumulation in the sciatic nerve. In macrophage-like RAW264.7 cells, paclitaxel evoked cytoplasmic translocation of nuclear HMGB1 followed by its extracellular release, and overexpression of CBP and PCAF, histone acetyltransferases (HATs), known to cause acetylation and cytoplasmic translocation of HMGB1, which were suppressed by ethyl pyruvate, N-acetyl-l-cysteine, an anti-oxidant, and SB203580 and PDTC, inhibitors of p38 MAP kinase (p38MAPK) and NF-κB, respectively. Paclitaxel increased accumulation of reactive oxygen species (ROS) and phosphorylation of p38MAPK, NF-κB p65 and I-κB in RAW264.7 cells. In mice, N-acetyl-l-cysteine or PDTC prevented the paclitaxel-induced allodynia. Co-culture of neuron-like NG108-15 cells or stimulation with their conditioned medium promoted paclitaxel-induced HMGB1 release from RAW264.7 cells. Our data indicate that HMGB1 released from macrophages through the ROS/p38MAPK/NF-κB/HAT pathway participates in the paclitaxel-induced peripheral neuropathy in mice, and unveils an emerging therapeutic avenue targeting a neuroimmune crosstalk in CIPN.
Collapse
Affiliation(s)
- Fumiko Sekiguchi
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University (formerly known as Kinki University), Higashi-Osaka, 577-8502, Japan
| | - Risa Domoto
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University (formerly known as Kinki University), Higashi-Osaka, 577-8502, Japan
| | - Kana Nakashima
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University (formerly known as Kinki University), Higashi-Osaka, 577-8502, Japan
| | - Daichi Yamasoba
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University (formerly known as Kinki University), Higashi-Osaka, 577-8502, Japan
| | - Hiroki Yamanishi
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University (formerly known as Kinki University), Higashi-Osaka, 577-8502, Japan
| | - Maho Tsubota
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University (formerly known as Kinki University), Higashi-Osaka, 577-8502, Japan
| | - Hidenori Wake
- Department of Pharmacology, Okayama University Graduate School of Medicine, Okayama, 700-8558, Japan
| | - Masahiro Nishibori
- Department of Pharmacology, Okayama University Graduate School of Medicine, Okayama, 700-8558, Japan
| | - Atsufumi Kawabata
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University (formerly known as Kinki University), Higashi-Osaka, 577-8502, Japan.
| |
Collapse
|
31
|
Schmitt A, Haug AL, Schlegel F, Fragasso A, Munz B. Effects of 10 weeks of regular running exercise with and without parallel PDTC treatment on expression of genes encoding sarcomere-associated proteins in murine skeletal muscle. Cell Stress Chaperones 2018; 23:1041-1054. [PMID: 29797237 PMCID: PMC6111093 DOI: 10.1007/s12192-018-0914-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/04/2018] [Accepted: 05/08/2018] [Indexed: 12/16/2022] Open
Abstract
Physical exercise can induce various adaptation reactions in skeletal muscle tissue, such as sarcomere remodeling. The latter involves degradation of damaged sarcomere components, as well as de novo protein synthesis and sarcomere assembly. These processes are controlled by specific protease systems in parallel with molecular chaperones that assist in folding of newly synthesized polypeptide chains and their incorporation into sarcomeres. Since acute exercise induces oxidative stress and inflammation, leading to activation of the transcription factor NFκB (nuclear factor kappa B), we speculated that this transcription factor might also play a role in the regulation of long-term adaptation to regular exercise. Thus, we studied skeletal muscle adaptation to running exercise in a murine model system, with and without parallel treatment with the NFκB-inhibitory, anti-oxidant and anti-inflammatory drug pyrrolidine dithiocarbamate (PDTC). In control mice, 10 weeks of uphill (15° incline) treadmill running for 60 min thrice a week at a final speed of 14 m/min had differential, but only minor effects on many genes encoding molecular chaperones for sarcomere proteins, and/or factors involved in the degradation of the latter. Furthermore, there were marked differences between individual muscles. PDTC treatment modulated gene expression patterns as well, both in sedentary and exercising mice; however, most of these effects were also modest and there was little effect of PDTC treatment on exercise-induced changes in gene expression. Taken together, our data suggest that moderate-intensity treadmill running, with or without parallel PDTC treatment, had little effect on the expression of genes encoding sarcomere components and sarcomere-associated factors in murine skeletal muscle tissue.
Collapse
Affiliation(s)
- Angelika Schmitt
- Department of Sports Medicine, Medical Clinic, University Hospital Tübingen, Hoppe-Seyler-Str. 6, 72076, Tübingen, Germany
| | - Anne-Lena Haug
- Department of Sports Medicine, Medical Clinic, University Hospital Tübingen, Hoppe-Seyler-Str. 6, 72076, Tübingen, Germany
| | - Franziska Schlegel
- Department of Sports Medicine, Medical Clinic, University Hospital Tübingen, Hoppe-Seyler-Str. 6, 72076, Tübingen, Germany
| | - Annunziata Fragasso
- Department of Sports Medicine, Medical Clinic, University Hospital Tübingen, Hoppe-Seyler-Str. 6, 72076, Tübingen, Germany
| | - Barbara Munz
- Department of Sports Medicine, Medical Clinic, University Hospital Tübingen, Hoppe-Seyler-Str. 6, 72076, Tübingen, Germany.
| |
Collapse
|
32
|
Liu X, Wang Z, Xie R, Tang P, Yuan Q. Design, synthesis and biological evaluation of novel carbamodithioates as anti-proliferative agents against human cancer cells. Eur J Med Chem 2018; 157:1526-1540. [PMID: 30282324 DOI: 10.1016/j.ejmech.2018.07.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 05/16/2018] [Revised: 07/06/2018] [Accepted: 07/15/2018] [Indexed: 11/19/2022]
Abstract
A series of new carbamodithioates compounds has been successfully synthesized. All the carbamodithioate derivatives of SFE and SFA with benzenethiols (substituted or unsubstituted) exhibited, in general, higher percentages of inhibition than their parent compounds: SFE and SFA. A number of carbamodithioate derivatives with benzenethiols (substituted or unsubstituted) (1l, 1m, 1n, 1o, 1q, 1s, 2l, 2n, 2p, 2q, 2r and 2s) were investigated for in vitro anti-proliferative activities against five cancer cell lines: SMMC-7721, A549, A375, HCT 116 and Hela. The carbamodithioate compounds (1l, 1m, 1n, 1o, 1q and 1s) derived from SFE and the carbamodithioate compounds (2l, 2n, 2p, 2q, 2r and 2s) derived from SFA are more sensitive toward SMMC-7721and A549 cancer cells than toward other cancer cells in that their IC50 values are appreciably lower. Moreover, they exhibited stronger inhibitory activities than their parent compound SFE and SFE. Further investigation indicated that these carbamodithioate derivatives inhibited colony formation of SMMC-7721 and remarkably induced the G2/M or G0/G1 phase cell cycle arrest and apoptosis in SMMC-7721 cancer cells. More important, these carbamodithioate derivatives are stable in protic solvent media than their parent compounds. By virtue of the simplicity of the preparation of these carbamodithioate derivatives and their stability, compounds 1m and 2s could be the promising candidates for replacement for their parent SFE and SFA for cancer prevention agents.
Collapse
Affiliation(s)
- Xia Liu
- State Key Laboratory of Chemical Resource Engineering, Organic and Medicinal Chemistry Division, College of Life Science and Technology, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing, 100029, China
| | - Zhijun Wang
- State Key Laboratory of Chemical Resource Engineering, Organic and Medicinal Chemistry Division, College of Life Science and Technology, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing, 100029, China
| | - Rui Xie
- State Key Laboratory of Chemical Resource Engineering, Organic and Medicinal Chemistry Division, College of Life Science and Technology, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing, 100029, China
| | - Pingwah Tang
- State Key Laboratory of Chemical Resource Engineering, Organic and Medicinal Chemistry Division, College of Life Science and Technology, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing, 100029, China.
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, Organic and Medicinal Chemistry Division, College of Life Science and Technology, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing, 100029, China.
| |
Collapse
|
33
|
Thind TS, Hollomon DW. Thiocarbamate fungicides: reliable tools in resistance management and future outlook. Pest Manag Sci 2018; 74:1547-1551. [PMID: 29286551 DOI: 10.1002/ps.4844] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 12/21/2017] [Accepted: 12/21/2017] [Indexed: 05/23/2023]
Abstract
Among contact fungicides, dithiocarbamates have remained successful and are used worldwide. These organic sulfur fungicides, viz. mancozeb, maneb, zineb, ziram, thiram, metiram and propineb, have helped growers manage several economically important plant diseases. Their multi-site mode of action and broad-spectrum disease control make them some of the most common partners in mixtures of a number of single-site fungicides as part of resistance management strategies. Indeed, it was the part played by ethylene-bis-dithiocarbamates such as mancozeb in delaying the evolution of phenylamide resistance in several oomycete phytopathogens that laid the groundwork for mixture strategies to become a cornerstone of anti-resistance management in plant disease control. Dithiocarbamates, however, do not have systemic action, are only surface protectants and have to be applied prior to pathogen infection. Dithiocarbamates will likely continue play a key role as reliable resistance management tools to prolong the efficacy of single-site fungicides. The primary metabolite ethylene thiourea produced by some of these fungicides is considered a reproductive and endocrine disrupter in animals. Therefore, dithiocarbamates need to be used at reduced rates or in slow-release formulations. © 2017 Society of Chemical Industry.
Collapse
Affiliation(s)
- Tarlochan S Thind
- Department of Plant Pathology, Punjab Agricultural University, Ludhiana, India
| | | |
Collapse
|
34
|
潘 莹, 黄 思, 王 霞, 龚 五, 梁 翠, 杜 均, 彭 东, 谢 云, 郑 礼, 张 楠, 全 文. [Activation of nuclear factor-κB subunit p50/p65 enhances gefitinib resistance of lung adenocarcinoma H1650 cell line]. Nan Fang Yi Ke Da Xue Xue Bao 2018; 38:584-590. [PMID: 29891456 PMCID: PMC6743890 DOI: 10.3969/j.issn.1673-4254.2018.05.13] [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] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To explore the intrinsic connection between activation of classical nuclear factor-κB (NF-κB) pathway and gefitinib resistance in human lung adenocarcinoma H1650 cells. METHODS Human lung adenocarcinoma H1650 cells were exposed to gefitinib continuously for 60 days to obtain resistant H1650 cells. The expressions of P-IκBα, P-p50 and P-p65 in the cytoplasm or nuclei were detected using Western blotting in human lung adenocarcinoma HCC827 cells, parental H1650 cells and gefitinib-resistant H1650 cells. The effects of gefitinib alone or in combination with PDTC on the survival rate and expressions of NF-κB P-p50 and P-p65 were compared among the 3 cell lines. RESULTS Gefitinib-resistant H1650 cells showed increased cytoplasmic and nuclear P-IκBα expressions. The expressions of P-p50 and P-p65 differed significantly among the 3 cell line, decreasing in the order of resistant H1650 cells, parental H1650 cells, and gefitinib sensitive HCC827 cell lines (P<0.05 or 0.01). Treatment with gefitinib alone resulted in a significantly lower cell inhibition rate in resistant H1650 cells than in the parental H1650 cells (P<0.05) and HCC827 cells (P<0.01). The resistant H1650 cells had a significantly higher expression of P-p50 and P-p65 than other two cell lines (P<0.05). In both the resistant and parental H1650 cells, gefitinib significantly lowered P-p50 and P-p65 expressions (P<0.05 or 0.01), and the combined treatment with gefitinib and PDTC significantly decreased the cell survival rate and further lowered the cytoplasmic and nuclear expressions of P-p50 and P-p65 (P<0.01 or 0.01). CONCLUSION The activation of classical NF-κB pathway is a key factor contributing to transformation of the parental H1650 cells into gefitinib-resistant cells. Gefitinib combined with PDTC can inhibit P-IκBα production and NF-κB P-p50 and P-p65 activation to suppress the survival of residual H1650 cells and the generation of gefitinib-resistant cells.
Collapse
Affiliation(s)
- 莹 潘
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 思超 黄
- 珠海市人民医院 药学部, 广东 珠海 519000Department of Pharmacy, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 霞 王
- 珠海市人口和计划生育服务中心, 广东 珠海 519000Population and Family Planning Service Center of Zhuhai, Zhuhai 519000, China
| | - 五星 龚
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 翠微 梁
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 均祥 杜
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 东旭 彭
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 云 谢
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 礼平 郑
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 楠 张
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| | - 文 全
- 珠海市人民医院 肿瘤科, 珠海市人民医院, 广东 珠海 519000Department of Oncology, Zhuhai People's Hospital, Zhuhai 519000, China
| |
Collapse
|
35
|
Zhang X, Yan F, Feng J, Qian H, Cheng Z, Yang Q, Wu Y, Zhao Z, Li A, Xiao H. Dexmedetomidine inhibits inflammatory reaction in the hippocampus of septic rats by suppressing NF-κB pathway. PLoS One 2018; 13:e0196897. [PMID: 29723264 PMCID: PMC5933780 DOI: 10.1371/journal.pone.0196897] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/20/2018] [Indexed: 02/06/2023] Open
Abstract
Dexmedetomidine (DEX) is known to provide neuroprotective effect in the central nervous system. However, the detailed mechanism remains far more elusive. This study was designed to investigate the relevant mechanisms of DEX's neuroprotective effect. Sprague-Dawley (SD) rats were injected with dexmedetomidine and/or Lipopolysaccharide (LPS) intraperitoneally, and inflammatory cytokines in serum and in the hippocampus were measured by enzyme linked immunosorbent assay (ELISA). NF-κB in the brain tissue extracts was analyzed with western-blot. Then, we investigated whether NF-κB inhibitor prevents the elevation of inflammatory cytokines in rats injected with LPS. Our results indicated that compared with the control group, the rats exposed to LPS showed significant cognitive dysfunction. When compared to controls, the levels of TNF-α and IL-6 in the serum and hippocampus homogenate were increased in rats treated with LPS. DEX pretreatment inhibited the rats' TNF-α, IL-6 and NF-κB levels induced by LPS. In response to LPS, PDTC pretreatment restrains the production of proinflammatory cytokines (TNF-α and IL-6). Rats treated with PDTC and DEX alongside LPS exhibited less TNF-α and IL-6 than the LPS treated group. In combination, PDTC and DEX showed addictive effects. Our data suggest that DEX exerts a neuroprotective effect through NF-κB in part after LPS-induced cognitive dysfunction.
Collapse
Affiliation(s)
- Xiaobao Zhang
- Department of Anesthesiology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, China
| | - Fang Yan
- Department of Basic Medical Science, Kangda College of Nanjing Medical University, Lianyungang, China
| | - Jiying Feng
- Department of Anesthesiology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, China
| | - Haitao Qian
- Department of Anesthesiology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, China
| | - Zhi Cheng
- Department of Anesthesiology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, China
| | - Qianqian Yang
- Department of Anesthesiology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, China
| | - Yong Wu
- Department of Anesthesiology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, China
| | - Zhibin Zhao
- Department of Anesthesiology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, China
| | - Aimin Li
- Department of Anesthesiology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, China
| | - Hang Xiao
- Department of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| |
Collapse
|
36
|
Wang HT, Fang YQ, You P, Bao XC, Li KC, Yao J, Li C, Yuan HR. PDTC ameliorates decompression induced-lung injury caused by unsafe fast buoyancy ascent escape via inhibition of NF-κB pathway. Undersea Hyperb Med 2018; 45:351-362. [PMID: 30028921] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nuclear factor kappa B (NF-κB) is the critical transcriptional factor in the pathogenesis of acute lung injury (ALI). NF-κB regulates the expression changes of inflammatory factors such as tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β) and interleukin 6 (IL-6). In a previous study we showed that decompression sickness (DCS) caused by simulated unsafe fast buoyancy ascent escape (FBAE) could result in ALI, which was characterized by expression changes of inflammatory factors in rat lung tissue. The purpose of the present work was to study the roles of NF-κB and TNF-α in the process of DCS-induced rat lung injury caused by simulated unsafe FBAE. The research methods aimed to detect the rat lung tissue messenger ribonucleic acid (mRNA) and protein level variations of NF-κB, inhibitory ×B (I×B), TNF-α, IL-1β, IL-6, IL-10 and IL-13 by using pretreatment of the NF-κB inhibitor pyrrolidine dithiocarbamate (PDTC) and TNF-α antibody (Ab). Our experimental results demonstrated that PDTC could improve the survival rate of the rats with DCS caused by unsafe FBAE more effectively than TNF-α Ab. However, the inhibition of TNF-α Ab on the nuclear translocated protein expression of NF-κB was more effective than PDTC. Both PDTC and TNF-α Ab can abrogate the increment of the rat lung tissue mRNA levels of TNF-α, IL-1β, IL-6 and protein levels of NF-κB, TNF-α, IL-1β effectively and increase the rat lung tissue content of I×B significantly. In conclusion, TNF-α-mediated NF-κB signaling may be one of the critical signaling pathways in the pathogenesis of DCS-induced rat lung injury caused by simulated unsafe FBAE. PDTC may ameliorate this type of injury partly through inhibiting the NF-κB pathway.
Collapse
Affiliation(s)
- Hai-Tao Wang
- Second Military Medical University, Shanghai, China
- Department of Diving Medicine, Naval Medical Research Institute, Shanghai, China
| | - Yi-Qun Fang
- Second Military Medical University, Shanghai, China
- Department of Diving Medicine, Naval Medical Research Institute, Shanghai, China
| | - Pu You
- Second Military Medical University, Shanghai, China
- Department of Diving Medicine, Naval Medical Research Institute, Shanghai, China
| | - Xiao-Chen Bao
- Second Military Medical University, Shanghai, China
- Department of Diving Medicine, Naval Medical Research Institute, Shanghai, China
| | - Kai-Cheng Li
- Second Military Medical University, Shanghai, China
- Department of Diving Medicine, Naval Medical Research Institute, Shanghai, China
| | - Jian Yao
- Second Military Medical University, Shanghai, China
- Department of Diving Medicine, Naval Medical Research Institute, Shanghai, China
| | - Ci Li
- Second Military Medical University, Shanghai, China
- Department of Diving Medicine, Naval Medical Research Institute, Shanghai, China
| | - Heng-Rong Yuan
- Second Military Medical University, Shanghai, China
- Department of Diving Medicine, Naval Medical Research Institute, Shanghai, China
| |
Collapse
|
37
|
Zavanella T, Arias E, Zaffaroni NP. Preliminary Study on the Carcinogenic Activity of the Fungicide Manganese Ethylenebisdithiocarbamate in the Adult Newt, Triturus Cristatus Carnifex. Tumori 2018; 65:163-7. [PMID: 462568 DOI: 10.1177/030089167906500204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Percutaneous exposure of adult newts to the fungicide manganese ethylenebisdithiocarbamate (maneb) at 3 concentration levels (0.5, 2.5 and 5.0 ppm) for a total of 19-23 weeks did not result in the induction of any neoplasms.
Collapse
|
38
|
Aiello D, Vitale A, Alfenas RF, Alfenas AC, Cirvilleri G, Polizzi G. Effects of Sublabeled Rates of Dazomet and Metam-Sodium Applied Under Low-Permeability Films on Calonectria Microsclerotia Survival. Plant Dis 2018; 102:782-789. [PMID: 30673406 DOI: 10.1094/pdis-05-17-0713-re] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Infested soil is the primary inoculum source for Calonectria spp. for initiating disease in ornamental and forestry crops. The effects of dazomet and metam-sodium on survival of microsclerotia of 28 isolates belonging to 19 Calonectria spp. were evaluated in this study under nursery conditions. Two experiments with exotic Calonectria spp. in plastic containers in a greenhouse and three trials with endemic species in field plots were performed during different seasons. The containers and plots were artificially infested with Calonectria microsclerotia differentiated on carnation leaf tissues. Basamid (dazomet) was applied at 100, 160, 200, 400, and 500 kg/ha, while Divapan (metam-sodium) was applied at 250, 350, 400, 700, and 1,000 liters/ha in both the containers and plots. The fumigants were applied under virtually and totally impermeable films. Fungal survival was evaluated after 21 days using leaf tissues collected from treated soil and plated on potato dextrose agar, and the ability of microsclerotia to cause infection was tested on red clover. The survival of Calonectria inocula and microsclerotia decreased with increasing fumigant rates. In the greenhouse trials, where Basamid was applied at 200, 400, and 500 kg/ha and Divapan at 400, 700, and 1,000 liters/ha, no viable microsclerotia were recovered for 14 exotic Calonectria spp., whereas viable inocula of Calonectria hongkongensis, C. naviculata, and C. sulawesiensis were retrieved from the fumigated plots. Low rates of Basamid (100 and 160 kg/ha) and Divapan (250 and 350 liters/ha) were less effective at reducing Calonectria viability and, for these treatments, the rate of microsclerotia survival was highly variable among the different isolates and species. Furthermore, totally impermeable film significantly enhanced fumigant performance. Relative to endemic Calonectria spp., all of the treatments killed microsclerotia of C. polizzii and C. pauciramosa independent from fumigant, rate, and film. This research demonstrated the possibility of reducing the application rates by up to 160 kg/ha for Basamid and 400 liters/ha for Divapan under low-permeability films (virtually impermeable film or totally impermeable film) for eradicating or reducing the primary inoculum of Calonectria spp. in soil.
Collapse
Affiliation(s)
- Dalia Aiello
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania
| | - Alessandro Vitale
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania
| | - Rafael F Alfenas
- Instituto de Ciências Agrárias e Ambientais, Universidade Federal do Mato Grosso, Sinop, Mato Grosso, Brazil
| | - Acelino C Alfenas
- Departamento de Fitopatologia, Universidade Federal de Viçosa UFV, Viçosa, Minas Gerais, Brazil
| | - Gabriella Cirvilleri
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy
| | - Giancarlo Polizzi
- Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, 95123 Catania, Italy
| |
Collapse
|
39
|
Abstract
Pyrrolidine dithiocarbamate (PDTC) can be an oral chelator with pKa= 3.300±0.002. It behaves as a bidentate ligand at serum pH. The effect of pH on Ni2+-Tf indicated that the maximum adsorption was at pH=7.4. The effective Ni-PDTC binding constant was determined (logk=11.1±0.1) for the 1:2 Ni(PDTC)2 complex using UV-vis spectra. The isosbestic point at 298 indicated that the complexation reaction was done directly (without side reaction). Removal of Ni from transferrin (Tf) was investigated by reverse titration of PDTC at 25°C and pH=7.4 using UV-vis spectra. PDTC is able to remove 25% of Ni from human serum transferrin.
Collapse
Affiliation(s)
- A Hooshmand
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
| | | | | |
Collapse
|
40
|
Laskar S, Sánchez-Sánchez L, Flores SM, López-Muñoz H, Escobar-Sánchez ML, López-Ortiz M, Hernández-Rodríguez M, Regla I. Identification of (1S,4S)-2,5-diazabicyclo[2.2.1]heptane-dithiocarbamate-nitrostyrene hybrid as potent antiproliferative and apoptotic inducing agent against cervical cancer cell lines. Eur J Med Chem 2018; 146:621-635. [PMID: 29407986 DOI: 10.1016/j.ejmech.2018.01.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 06/17/2017] [Revised: 12/17/2017] [Accepted: 01/07/2018] [Indexed: 01/15/2023]
Abstract
The present study seeks to describe the design and synthesis of six new Michael adducts of (1S,4S)-2,5-diazabicyclo[2.2.1]heptane-dithiocarbamate with nitrostyrenes and their in vitro antiproliferative activity against human cervical cancer cell lines [HeLa (HPV 18 positive), CaSki (HPV 16 positive) and ViBo (HPV negative) cervical cancer cell lines]. Virtual screening of the physicochemical properties of all compounds have also been presented. All the compounds exploited significant antiproliferative activity on the three cervical cancer cell lines. Compound 8a was found to be most potent, displaying in vitro antiproliferative activity against HeLa, CaSki and ViBo cervical cancer cell lines superior to Cisplatin and Paclitaxel with IC50 values 0.99 ± 0.007, 2.36 ± 0.016 and 0.73 ± 0.002 μM respectively. In addition, compound 8a did not trigger the necrosis cell death to the test cancer cell lines. Further mechanistic study revealed that compound 8a could inhibit the cancer cell proliferation by inducing apoptosis through caspase-3 activation. Moreover, cell cycle analysis indicated that compound 8a could arrest the cell cycle at the G1 phase for HeLa and CaSki cancer cells. At the predetermined IC50 values on cancer cells, compound 8a did not induce any necrotic (cytotoxic) death to the normal human lymphocytes. In the present design, (1S,4S)-2,5-diazabicyclo[2.2.1]heptane system was found to be superior than the piperazine counterpart 11.
Collapse
Affiliation(s)
- Sujay Laskar
- Lab. de Síntesis de Fármacos, Laboratorio 9 UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa 09230, Ciudad de México, Mexico.
| | - Luis Sánchez-Sánchez
- Lab. Biología Molecular del Cáncer, Laboratorio 2 PB UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa 09230, Ciudad de México, Mexico.
| | - Sebastián M Flores
- Lab. de Síntesis de Fármacos, Laboratorio 9 UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa 09230, Ciudad de México, Mexico
| | - Hugo López-Muñoz
- Lab. Biología Molecular del Cáncer, Laboratorio 2 PB UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa 09230, Ciudad de México, Mexico
| | - María L Escobar-Sánchez
- Lab. Microscopía Electrónica, Depto. Biología Celular, Facultad de Ciencias, Cd. Universitaria, Universidad Nacional Autónoma de México, Coyoacán, 04510, Ciudad de México, Mexico
| | - Manuel López-Ortiz
- Lab. de Síntesis de Fármacos, Laboratorio 9 UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa 09230, Ciudad de México, Mexico
| | - Marcos Hernández-Rodríguez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Ignacio Regla
- Lab. de Síntesis de Fármacos, Laboratorio 9 UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa 09230, Ciudad de México, Mexico.
| |
Collapse
|
41
|
Li J, Huang B, Wang Q, Li Y, Fang W, Han D, Yan D, Guo M, Cao A. Effects of fumigation with metam-sodium on soil microbial biomass, respiration, nitrogen transformation, bacterial community diversity and genes encoding key enzymes involved in nitrogen cycling. Sci Total Environ 2017; 598:1027-1036. [PMID: 28476076 DOI: 10.1016/j.scitotenv.2017.02.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/05/2017] [Accepted: 02/07/2017] [Indexed: 06/07/2023]
Abstract
Metam-sodium (MS) is widely used as a soil pre-plant fumigant as methyl bromide is phased out of agriculture. However, the information about how fumigation with MS affects the soil microbial community is still limited. In this study, a 66-day-long experiment was conducted to ascertain the effects of MS on soil substrate-induced respiration (SIR), microbial biomass nitrogen (MBN), NH4+-N and NO3--N concentrations, as well as the abundance of the total bacteria and fungi and the expression of genes involved in nitrogen cycling. In addition, 16S rRNA amplicon sequencing was used to investigate the effect of MS on the soil bacterial community. The half-lives of high and low doses of methyl isothiocyanate (MITC) are 10.51h and 9.93h, respectively. MS caused a short-term inhibition of SIR, MBN; had an accumulation effect on NH4+-N concentration in the short term; reduced the abundance of the total bacteria and fungi; and suppressed the expression of the nifH, AOA-amoA, anammox bacteria, nosZ, nirS, and narG. In addition, under the influence of MS, soil bacterial diversity decreased significantly in the long term, bacterial community structure was affected, and there was a shift in the predominant population; for example, some genera, such as Paenibacillus and Luteimonas, significantly increased in number. These changes in bacterial flora may be closely related to the growth of crops. Our study provides useful information for environmental safety assessments of MS in China.
Collapse
Affiliation(s)
- Jun Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bin Huang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qiuxia Wang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China; State Key Laboratory for Biology of Plant Disease and Insect Pests, Beijing, China
| | - Yuan Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China; State Key Laboratory for Biology of Plant Disease and Insect Pests, Beijing, China
| | - Wensheng Fang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dawei Han
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dongdong Yan
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China; State Key Laboratory for Biology of Plant Disease and Insect Pests, Beijing, China
| | - Meixia Guo
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China; State Key Laboratory for Biology of Plant Disease and Insect Pests, Beijing, China
| | - Aocheng Cao
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China; State Key Laboratory for Biology of Plant Disease and Insect Pests, Beijing, China.
| |
Collapse
|
42
|
Chan PC, Wang YC, Chen YL, Hsu WN, Tian YF, Hsieh PS. Importance of NADPH oxidase-mediated redox signaling in the detrimental effect of CRP on pancreatic insulin secretion. Free Radic Biol Med 2017; 112:200-211. [PMID: 28778482 DOI: 10.1016/j.freeradbiomed.2017.07.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/02/2017] [Accepted: 07/31/2017] [Indexed: 10/19/2022]
Abstract
Elevations in C-reactive protein (CRP) levels are positively correlated with the progress of type 2 diabetes mellitus. However, the effect of CRP on pancreatic insulin secretion is unknown. Here, we showed that purified human CRP impaired insulin secretion in isolated mouse islets and NIT-1 insulin-secreting cells in dose- and time-dependent manners. CRP increased NADPH oxidase-mediated ROS (reactive oxygen species) production, which simultaneously promoted the production of nitrotyrosine (an indicator of RNS, reactive nitrogen species) and TNFα, to diminish cell viability, insulin secretion in islets and insulin-secreting cells. These CRP-mediated detrimental effects on cell viability and insulin secretion were significantly reversed by adding NAC (a potent antioxidant), apocynin (a selective NADPH oxidase inhibitor), L-NAME (a non-selective nitric oxide synthase (NOS) inhibitor), aminoguanidine (a selective iNOS inhibitor), PDTC (a selective NFκB inhibitor) or Enbrel (an anti-TNFα fusion protein). However, CRP-induced ROS production failed to change after adding L-NAME, aminoguanidine or PDTC. In isolated islets and NIT-1 cells, the elevated nitrotyrosine contents by CRP pretreatment were significantly suppressed by adding L-NAME but not PDTC. Conversely, CRP-induced increases in TNF-α production were significantly reversed by administration of PDTC but not L-NAME. In addition, wild-type mice treated with purified human CRP showed significant decreases in the insulin secretion index (HOMA-β cells) and the insulin stimulation index in isolated islets that were reversed by the addition of L-NAME, aminoguanidine or NAC. It is suggested that CRP-activated NADPH-oxidase redox signaling triggers iNOS-mediated RNS and NFκB-mediated proinflammatory cytokine production to cause β cell damage in state of inflammation.
Collapse
Affiliation(s)
- Pei-Chi Chan
- Department of Physiology and Biophysics, National Defense Medical Center, Taipei, Taiwan
| | - Ya-Chin Wang
- Department of Physiology and Biophysics, National Defense Medical Center, Taipei, Taiwan
| | - Yi-Ling Chen
- Department of Physiology and Biophysics, National Defense Medical Center, Taipei, Taiwan
| | - Wan-Ning Hsu
- Department of Physiology and Biophysics, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Feng Tian
- Division of General Surgery, Department of Surgery, Yung Kung campus, Chi-Mei Medical Center, Tainan, Taiwan
| | - Po-Shiuan Hsieh
- Department of Physiology and Biophysics, National Defense Medical Center, Taipei, Taiwan; Institute of Preventive Medicine, National Defense Medical Center, Sanxia, Taiwan; Department of Medical Research, Tri-Service General Hospital, Taipei, Taiwan.
| |
Collapse
|
43
|
Liu H, Xiong J, He T, Xiao T, Li Y, Yu Y, Huang Y, Xu X, Huang Y, Zhang J, Zhang B, Zhao J. High Uric Acid-Induced Epithelial-Mesenchymal Transition of Renal Tubular Epithelial Cells via the TLR4/NF-kB Signaling Pathway. Am J Nephrol 2017; 46:333-342. [PMID: 29017152 DOI: 10.1159/000481668] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 09/20/2017] [Indexed: 01/11/2023]
Abstract
BACKGROUND Hyperuricemia is an independent risk factor for causing chronic kidney disease and contributes to kidney fibrosis. After urate crystals get deposited in the kidney, they can cause hyperuricemia nephropathy, leading to glomerular hypertrophy and renal tubular interstitial fibrosis. Recent data showed that uric acid (UA) could induce epithelial mesenchymal transition (EMT) of renal tubular cells, in which NRLP3 inflammatory pathway was involved. However, whether TLR4/NF-κB signaling pathway is also involved in EMT of renal tubular cells induced by UA is not clear. METHODS Human renal tubular epithelial cells (HK-2) were directly treated with UA and the phenotypic transition was detected by morphological changes and the molecular markers of EMT. The activation of the TLR4/NF-κB signaling pathway induced by UA was measured by Western blot and its involvement was further confirmed by the inhibition of NF-κB activation or knockdown of toll like receptor 4 (TLR4) expression. RESULTS UA induced obvious morphological changes of HK-2 cell, accompanied with altered molecular markers of EMT including fibronectin, α-SMA and E-cadherin. In addition, UA significantly upregulated the gene expression of interleukin-1β and tumor necrosis factor-α in a time- and dose-dependent manner. Furthermore, UA significantly activated the TLR4/NF-κB signaling pathway in HK-2 cells, while the inhibition of the TLR4 expression by siRNA and NF-κB activation by PDTC significantly attenuated EMT induced by UA in HK-2 cells. CONCLUSIONS UA can induce EMT in renal tubular epithelial cells by the activation of the TLR4/NF-κB signaling pathway, and the targeted intervention of the TLR4/NF-κB signaling pathway might effectively inhibit UA-induced renal interstitial fibrosis mediated by EMT.
Collapse
|
44
|
Du J, Chi Y, Song Z, Di Q, Mai Z, Shi J, Li M. Crocin reduces Aspergillus fumigatus-induced airway inflammation and NF-κB signal activation. J Cell Biochem 2017; 119:1746-1754. [PMID: 28786504 DOI: 10.1002/jcb.26335] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 06/08/2017] [Accepted: 08/07/2017] [Indexed: 12/30/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic airway inflammation and its exacerbation is often accompanied by Aspergillus fumigatus (A. fumigatus) infection. Increasing evidences demonstrated the potent antioxidant and -inflammatory effects of crocin. However, the role of crocin in A. fumigatus-induced inflammation is still unknown. We aimed to evaluate the role of crocin in inflammation response induced by A. fumigatus in human bronchial epithelial cells and the possible mechanisms. BEAS-2B and NHBE cells were pretreated with crocin for 24 h, and then A. fumigatus conidia were added for 24 h. A. fumigatus treatment exhibited a significant higher TNF-α, IL-8, IL-6, and IL-1β level (P < 0.05), whereas crocin pretreatment significantly inhibited A. fumigatus induced the pro-inflammatory cytokines (P < 0.05). NF-κB inhibitor PDTC inhibited pro-inflammatory cytokines release triggered by A. fumigatus (P < 0.05). Furthermore, crocin suppressed A. fumigatus induced NF-κB p65 nuclear translocation, the phosphorylation of IKKα and IκBα, the degradation of IκBα and NF-κB reporter activity. Crocin pretreatment also resulted in an inhibition of A.fumigatus-induced ROS production (P < 0.05). Taken together, these results indicate that crocin may prevent A. fumigatus-induced inflammation through suppressing NF-κB signal pathway.
Collapse
Affiliation(s)
- Junfeng Du
- Department of Respiratory Medicine, Cangzhou Central Hospital, Cangzhou, Hebei, P. R. China
| | - Yumin Chi
- Department of Respiratory Medicine, Cangzhou Central Hospital, Cangzhou, Hebei, P. R. China
| | - Zhan Song
- Department of Respiratory Medicine, Cangzhou Central Hospital, Cangzhou, Hebei, P. R. China
| | - Qingguo Di
- Department of Respiratory Medicine, Cangzhou Central Hospital, Cangzhou, Hebei, P. R. China
| | - Zhitao Mai
- Department of Respiratory Medicine, Cangzhou Central Hospital, Cangzhou, Hebei, P. R. China
| | - Jian Shi
- Department of Respiratory Medicine, Cangzhou Central Hospital, Cangzhou, Hebei, P. R. China
| | - Min Li
- Department of Respiratory Medicine, Cangzhou Central Hospital, Cangzhou, Hebei, P. R. China
| |
Collapse
|
45
|
Abstract
Hydrogen sulfide (H2S) is an important biological mediator, and synthetic H2S donating molecules provide an important class of investigative tools for H2S research. Here, we report esterase-activated H2S donors that function by first releasing carbonyl sulfide (COS), which is rapidly converted to H2S by the ubiquitous enzyme carbonic anhydrase (CA). We report the synthesis, self-immolative decomposition, and H2S release profiles of the developed scaffolds. In addition, the developed esterase-triggered COS/H2S donors exhibit higher levels of cytotoxicity than equivalent levels of Na2S or the common H2S donors GYY4137 and AP39. Using cellular bioenergetics measurements, we establish that the developed donors reduce cellular respiration and ATP synthesis in BEAS 2B human lung epithelial cells, which is consistent with COS/H2S inhibition of cytochrome c oxidase in the mitochondrial respiratory chain although not observed with common H2S donors at the same concentrations. Taken together, these results may suggest that COS functions differently than H2S in certain biological contexts or that the developed donors are more efficient at delivering H2S than other common H2S-releasing motifs.
Collapse
Affiliation(s)
- Andrea K Steiger
- Department of Chemistry and Biochemistry, Materials Science Institute, Institute of Molecular Biology, University of Oregon , Eugene, Oregon 97403, United States
| | - Michela Marcatti
- Department of Anaesthesiology, University of Texas Medical Branch , Galveston, Texas 77555, United States
| | - Csaba Szabo
- Department of Anaesthesiology, University of Texas Medical Branch , Galveston, Texas 77555, United States
| | - Bartosz Szczesny
- Department of Anaesthesiology, University of Texas Medical Branch , Galveston, Texas 77555, United States
| | - Michael D Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Institute of Molecular Biology, University of Oregon , Eugene, Oregon 97403, United States
| |
Collapse
|
46
|
Karimy JK, Zhang J, Kurland DB, Theriault BC, Duran D, Stokum JA, Furey CG, Zhou X, Mansuri MS, Montejo J, Vera A, DiLuna ML, Delpire E, Alper SL, Gunel M, Gerzanich V, Medzhitov R, Simard JM, Kahle KT. Inflammation-dependent cerebrospinal fluid hypersecretion by the choroid plexus epithelium in posthemorrhagic hydrocephalus. Nat Med 2017; 23:997-1003. [PMID: 28692063 DOI: 10.1038/nm.4361] [Citation(s) in RCA: 212] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 05/31/2017] [Indexed: 02/07/2023]
Abstract
The choroid plexus epithelium (CPE) secretes higher volumes of fluid (cerebrospinal fluid, CSF) than any other epithelium and simultaneously functions as the blood-CSF barrier to gate immune cell entry into the central nervous system. Posthemorrhagic hydrocephalus (PHH), an expansion of the cerebral ventricles due to CSF accumulation following intraventricular hemorrhage (IVH), is a common disease usually treated by suboptimal CSF shunting techniques. PHH is classically attributed to primary impairments in CSF reabsorption, but little experimental evidence supports this concept. In contrast, the potential contribution of CSF secretion to PHH has received little attention. In a rat model of PHH, we demonstrate that IVH causes a Toll-like receptor 4 (TLR4)- and NF-κB-dependent inflammatory response in the CPE that is associated with a ∼3-fold increase in bumetanide-sensitive CSF secretion. IVH-induced hypersecretion of CSF is mediated by TLR4-dependent activation of the Ste20-type stress kinase SPAK, which binds, phosphorylates, and stimulates the NKCC1 co-transporter at the CPE apical membrane. Genetic depletion of TLR4 or SPAK normalizes hyperactive CSF secretion rates and reduces PHH symptoms, as does treatment with drugs that antagonize TLR4-NF-κB signaling or the SPAK-NKCC1 co-transporter complex. These data uncover a previously unrecognized contribution of CSF hypersecretion to the pathogenesis of PHH, demonstrate a new role for TLRs in regulation of the internal brain milieu, and identify a kinase-regulated mechanism of CSF secretion that could be targeted by repurposed US Food and Drug Administration (FDA)-approved drugs to treat hydrocephalus.
Collapse
Affiliation(s)
- Jason K Karimy
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Jinwei Zhang
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
- Institute of Biomedical and Clinical Sciences, University of Exeter Medical School, Hatherly Laboratory, Exeter, UK
| | - David B Kurland
- Department of Neurosurgery, University of Maryland, School of Medicine, Baltimore, Maryland, USA
| | | | - Daniel Duran
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Jesse A Stokum
- Department of Neurosurgery, University of Maryland, School of Medicine, Baltimore, Maryland, USA
| | | | - Xu Zhou
- Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - M Shahid Mansuri
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Julio Montejo
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Alberto Vera
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Michael L DiLuna
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Eric Delpire
- Department of Anesthesiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Seth L Alper
- Division of Nephrology, Beth Israel Deaconess Medical Center, Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Vascular Biology Research Center, Beth Israel Deaconess Medical Center, Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Murat Gunel
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Volodymyr Gerzanich
- Department of Neurosurgery, University of Maryland, School of Medicine, Baltimore, Maryland, USA
| | - Ruslan Medzhitov
- Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - J Marc Simard
- Department of Neurosurgery, University of Maryland, School of Medicine, Baltimore, Maryland, USA
- Department of Pathology, University of Maryland, School of Medicine, Baltimore, Maryland, USA
- Department of Physiology, University of Maryland, School of Medicine, Baltimore, Maryland, USA
| | - Kristopher T Kahle
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Cellular & Molecular Physiology, Yale School of Medicine, New Haven, Connecticut, USA
- Center for Mendelian Genomics, Yale School of Medicine, New Haven, Connecticut, USA
| |
Collapse
|
47
|
Abstract
To explore the role of NF-κB activation in the development of insulin resistance and investigate whether or not that the inhibition of NF-κB activation by PDTC will improve the insulin resistance of L6 cells exposed to H2O2. L6 cells were treated with H2O2, PDTC or both H2O2 and PDTC for 4 hours. The uptake of glucose with stimulation of insulin, the expression of P38-MAPK, p- P38-MAPK, NF-κBp65, p- NF-κBp65, IRS-1, IRS-2, p-IRS-2, PI3K, IκBα, p- IκBα, caspase-8 and GLUT4, the production of ROS, TNF-α, IL-6 and IL-1β as well as the apoptosis rate of L6 cells were determined and compared in L6 treated with H2O2 alone or both H2O2 and PDTC. Compared with the L6 cells treated with H2O2 alone, the L6 cells treated with both H2O2 and PDTC showed (1) significantly lower production of ROS, TNF-α, IL-6 and IL-1β; (2) significantly decreased expression of P38-MAPK, p- P38-MAPK and NF-κBp65, p- NF-κBp65, p- IκBα and caspase-8; (3) significantly lower rate of apoptosis; (4) significantly higher expression of IRS-2, p-IRS-2 (Tyr 612), PI3K and GLUT4; (5) significantly higher uptake of glucose with stimulation of insulin; (6) significantly increased expression of Bcl2 and decreased ratio of Bax to Bcl2. Based on the findings of the present study, inhibition of NF-κB activation by PDTC would improve the insulin resistance of L6 cells exposed to H2O2.
Collapse
Affiliation(s)
- Fengyang Xie
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Jian Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Baolian Hou
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Yuan Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Fanzhu Meng
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Zhixing Ren
- Center for Disease Prevention and Control of Changchun, Jilin Province, China
| | - Shuping Ren
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| |
Collapse
|
48
|
Ji CL, Jiang H, Tao MQ, Wu WT, Jiang J, Zuo J. Selective regulation of IKKβ/NF-κB pathway involved in proliferation inhibition of HFLS-RA cells induced by 1,7-dihydroxyl-3,4-dimethoxylxanthone. Kaohsiung J Med Sci 2017; 33:486-495. [PMID: 28962819 DOI: 10.1016/j.kjms.2017.06.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 05/16/2017] [Revised: 06/19/2017] [Accepted: 06/20/2017] [Indexed: 01/06/2023] Open
Abstract
Rheumatoid arthritis is a common autoimmune disease, however, available regimes exert little influence on it's long-term prognosis. The aim of the current study is to investigate potential effects of 1,7-dihydroxyl-3,4-dimethoxyl-xanthone (XAN) in HFLS-RA cells and describe the underlying mechanisms of induction of NF-κB activity. Viability of cells was measured by MTT assay. Flow cytometry was employed to assess the pro-apoptotic effects. Modulation on NF-κB signaling was investigated by RT-qPCR, Western-blot and immunofluorescence methods. It was found that XAN induced proliferation inhibition and apoptosis of HFLS-RA cells in the concentration-dependent manner, which were strengthened by pyrrolidinedithiocarbamic acid but antagonized by IKK16. NF-κB signaling was abrogated shortly after the treatment of XAN via various means including mRNA expression, phosphorylation and nuclear translocation, which leaded to up-regulation of p38 and down-regulation of X-linked inhibitor of apoptosis protein. Simultaneous suppressions on p-IKKβ, p-IκB and p-p65 suggested the regulation on NF-κB was IKKβ mediated. Meanwhile, XAN promoted the expression of IKKα, which has a possible connection to pro-apoptotic effects suggested by the up-regulated cleaved PARP. These findings indicated IKKβ/NF-κB mediates the proliferation of HFLS-RA cells inhibited by XAN, and divergent regulations on IKKs could provide synergic effects on the cells' proliferation.
Collapse
Affiliation(s)
- Cong-Lan Ji
- Department of Pharmacy, Anhui College of Traditional Chinese Medicine, Wuhu, China
| | - Hui Jiang
- Pharmacy Department, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Meng-Qing Tao
- Pharmacy Department, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Wei-Ting Wu
- Department of Basic Course, Wuhu Medicine and Health School, Wuhu, China
| | - Jia Jiang
- Pharmacy Department, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Jian Zuo
- Pharmacy Department, Yijishan Hospital of Wannan Medical College, Wuhu, China; Anhui Provincial Engineering Technology Research Center of Polysaccharides Drug, Wuhu, China.
| |
Collapse
|
49
|
Huang H, Hanada S, Kojima N, Sakai Y. Enhanced Functional Maturation of Fetal Porcine Hepatocytes in Three-Dimensional Poly-L-lactic Acid Scaffolds: A Culture Condition Suitable for Engineered Liver Tissues in Large-Scale Animal Studies. Cell Transplant 2017; 15:799-809. [PMID: 17269450 DOI: 10.3727/000000006783981486] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
To engineer liver tissues with a clinically significant size, in vivo evaluation of performance using large-scale animal studies are necessary before proceeding to human clinical trials. As pigs are the most suitable candidates, the development of culture conditions suitable for porcine hepatocyte progenitors is very important to engineer pig liver tissue equivalents. We therefore investigated the efficacy of poly-L-lactic acid (PLLA) three-dimensional (3D) scaffolds on the functional maturation of fetal porcine hepatocytes in the presence of various combinations of biofactors. Cells were isolated from pig fetuses obtained from a local slaughterhouse, and cultured for 15 days both in monolayer and PLLA scaffolds. Although 15 days of culture resulted in almost the same ratio of proliferation (about fivefold) in both monolayer and 3D PLLA culture, the PLLA culture with hepatocyte growth factor (HGF, 10 ng/ml) and sodium butylate (Sb, 1 mM) remarkably enhanced various liver-specific functions of fetal porcine hepatocytes. The final attained functions based on the numbers of immobilized cells on day 1 compared with those of day 1 monolayers; 191fold increase in albumin secretion, 70.5-fold increase in cytochrome P450 IA1/2 capacity, 20.9-fold increase in ammonia removal, and 18.0-fold increase in urea synthesis were obtained. These functions were 2.0–3.3-fold higher than those obtained by the same period of monolayer culture. In addition, final attained unit cell-based functions on day 15 were almost comparable to the levels reported for cultures of adult porcine hepatocytes in both monolayer and 3D spheroid cultures. These results demonstrate that the use of a biodegradable polymer-based 3D culture with an appropriate combination of biofactors is a promising approach to maximize functional maturation of hepatocyte progenitors from large animals. In addition, the established culture conditions are worth using to engineer large liver tissue equivalents for pigs in large-animal-based preclinical studies.
Collapse
Affiliation(s)
- Hongyun Huang
- Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
| | | | | | | |
Collapse
|
50
|
Tomasello MF, Nardon C, Lanza V, Di Natale G, Pettenuzzo N, Salmaso S, Milardi D, Caliceti P, Pappalardo G, Fregona D. New comprehensive studies of a gold(III) Dithiocarbamate complex with proven anticancer properties: Aqueous dissolution with cyclodextrins, pharmacokinetics and upstream inhibition of the ubiquitin-proteasome pathway. Eur J Med Chem 2017. [PMID: 28651154 DOI: 10.1016/j.ejmech.2017.06.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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] [Indexed: 11/15/2022]
Abstract
The gold(III)-dithiocarbamate complex AuL12 (dibromo [ethyl-N-(dithiocarboxy-kS,kS')-N-methylglycinate] gold(III)), is endowed with promising in vitro/in vivo antitumor activity and toxicological profile. Here, we report our recent strategies to improve its water solubility and stability under physiological conditions along with our efforts for unravelling its tangled mechanism of action. We used three types of α-cyclodextrins (CDs), namely β-CD, Me-β-CD and HP-β-CD to prepare aqueous solutions of AuL12. The ability of these natural oligosaccharide carriers to enhance water solubility of hydrophobic compounds, allowed drug stability of AuL12 to be investigated. Moreover, pharmacokinetic experiments were first carried out for a gold(III) coordination compound, after i.v. injection of the nanoformulation AuL12/HP-β-CD to female mice. The gold content in the blood samples was detected at scheduled times by AAS (atomic absorption spectrometry) analysis, highlighting a fast biodistribution with a tβ1/2 of few minutes and a slow escretion (tα1/2 of 14.3 h). The in vitro cytotoxic activity of AuL12 was compared with the AuL12/HP-β-CD mixture against a panel of three human tumor cell lines (i.e., HeLa, KB and MCF7). Concerning the mechanism of action, we previously reported the proteasome-inhibitory activity of some our gold(III)-based compounds. In this work, we moved from the proteasome target to upstream of the important ubiquitin-proteasome pathway, testing the effects of AuL12 on the polyubiquitination reactions involving the Ub-activating (E1) and -conjugating (E2) enzymes.
Collapse
Affiliation(s)
- Marianna F Tomasello
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy
| | - Chiara Nardon
- Università degli Studi di Padova, Dipartimento di Scienze Chimiche, Via F. Marzolo 1, 35131, Padova, Italy
| | - Valeria Lanza
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy
| | - Giuseppe Di Natale
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy
| | - Nicolò Pettenuzzo
- Università degli Studi di Padova, Dipartimento di Scienze Chimiche, Via F. Marzolo 1, 35131, Padova, Italy
| | - Stefano Salmaso
- Università degli Studi di Padova, Dipartimento di Scienze Farmaceutiche, Via F. Marzolo 5, 35131, Padova, Italy
| | - Danilo Milardi
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy
| | - Paolo Caliceti
- Università degli Studi di Padova, Dipartimento di Scienze Farmaceutiche, Via F. Marzolo 5, 35131, Padova, Italy
| | - Giuseppe Pappalardo
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy.
| | - Dolores Fregona
- Università degli Studi di Padova, Dipartimento di Scienze Chimiche, Via F. Marzolo 1, 35131, Padova, Italy.
| |
Collapse
|