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Liu X, Deng H, Huang M, Zhou W, Yang Y. TRAIL predisposes non-small cell lung cancer to ferroptosis by regulating ASK-1/JNK1 pathway. Discov Oncol 2024; 15:45. [PMID: 38383815 PMCID: PMC10881944 DOI: 10.1007/s12672-024-00890-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 02/09/2024] [Indexed: 02/23/2024] Open
Abstract
OBJECTIVE Our current study aimed to assess the relationship between TNF-related apoptosis-inducing ligand (TRAIL) and ferroptosis in non-small cell lung cancer (NSCLC) development. METHODS The expression of TRAIL was detected by western blot, RT-qRCR and immunohistochemistry. The viability of NSCLC cells was analyzed by CCK-8 kit. The migration and invasion of NSCLC cells were detected by wound healing assay and transwell assay, respectively. Labile iron pool (LIP) was detected based on the calcein-acetoxymethyl ester method. Ferrous iron (Fe2+) and iron levels were assessed by detection kits. The levels of superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA) were measured using corresponding detection kits. Mice tumor xenograft models were used for the in vivo research. RESULTS The expression of TRAIL was reduced in H1299, NCL-H1395, and A549 cells compared with BEAS-2B cells. The up-regulation of TRAIL expression significantly reduced cell viability, invasion, and migration of H1299 and A549 cells. TRAIL reduced the expression of ferroptosis-related genes (FTH1, GPX4, and SLC7A11), increased the levels of LIP, iron, and Fe2+, and promoted lipid peroxidation, thereby predisposing NSCLC cells to ferroptosis. TRAIL up-regulated the expression of phosphate modification of ASK-1 and JNK. ASKI-1 inhibitor GS-4977 attenuated the effects of TRAIL on the viability, migration, invasion, and ferroptosis of H1299 cells. Furthermore, TRAIL further suppressed tumor growth and ferroptosis in mice tumor xenograft models. CONCLUSION We indicated that overexpression of TRAIL induced ferroptosis in NSCLC cells and exerted anti-tumor effects. Mechanistically, TRAIL promoted ferroptosis by the activation of the ASK-1/JNK1 pathway. Our results may provide new therapeutic strategies for NSCLC.
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Affiliation(s)
- Xiaofang Liu
- Department III of Geriatrics, The Third Hospital of Changsha, No. 176, Labor West Road, Changsha, 410000, Hunan Province, China
| | - Huiqian Deng
- Department III of Geriatrics, The Third Hospital of Changsha, No. 176, Labor West Road, Changsha, 410000, Hunan Province, China
| | - Mi Huang
- Department III of Geriatrics, The Third Hospital of Changsha, No. 176, Labor West Road, Changsha, 410000, Hunan Province, China
| | - Wei Zhou
- Department III of Geriatrics, The Third Hospital of Changsha, No. 176, Labor West Road, Changsha, 410000, Hunan Province, China
| | - Yilin Yang
- Department III of Geriatrics, The Third Hospital of Changsha, No. 176, Labor West Road, Changsha, 410000, Hunan Province, China.
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Zhang F, Zhu G, Li Y, Qi Y, Wang Z, Li W. Dual-target inhibitors based on COX-2: a review from medicinal chemistry perspectives. Future Med Chem 2023; 15:2209-2233. [PMID: 38095081 DOI: 10.4155/fmc-2023-0192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 11/08/2023] [Indexed: 12/20/2023] Open
Abstract
Inhibitors of COX-2 constitute a class of anti-inflammatory analgesics, showing potential against certain types of cancer. However, such inhibitors are associated with cardiovascular toxicity. Moreover, although single-target molecules possess specificity for particular targets, they often lead to poor safety, low efficacy and drug resistance due to compensatory mechanisms. A new generation of dual-target drugs that simultaneously inhibit COX-2 and another target is showing strong potential to treat cancer or reduce adverse cardiac effects. The present perspective focuses on the structure and functions of COX-2, and its role as a therapeutic target. It also explores the current state and future possibilities for dual-target strategies from a medicinal chemistry perspective.
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Affiliation(s)
- Fengmei Zhang
- Department of Pulmonary & Critical Care Medicine, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- State Key Laboratory of Respiratory Health & Multimorbidity, West China Hospital, Chengdu, 610041, Sichuan, China
| | - Guonian Zhu
- Department of Pulmonary & Critical Care Medicine, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- State Key Laboratory of Respiratory Health & Multimorbidity, West China Hospital, Chengdu, 610041, Sichuan, China
| | - Yangqian Li
- Department of Pulmonary & Critical Care Medicine, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- State Key Laboratory of Respiratory Health & Multimorbidity, West China Hospital, Chengdu, 610041, Sichuan, China
| | - Yawen Qi
- Department of Pulmonary & Critical Care Medicine, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- State Key Laboratory of Respiratory Health & Multimorbidity, West China Hospital, Chengdu, 610041, Sichuan, China
| | - Zhoufeng Wang
- Department of Pulmonary & Critical Care Medicine, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- State Key Laboratory of Respiratory Health & Multimorbidity, West China Hospital, Chengdu, 610041, Sichuan, China
- Precision Medicine Center, Precision Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- The Research Units of West China, Chinese Academy of Medical Sciences, West China Hospital, Chengdu, 610041, Sichuan, China
| | - Weimin Li
- Department of Pulmonary & Critical Care Medicine, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- State Key Laboratory of Respiratory Health & Multimorbidity, West China Hospital, Chengdu, 610041, Sichuan, China
- Precision Medicine Center, Precision Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- The Research Units of West China, Chinese Academy of Medical Sciences, West China Hospital, Chengdu, 610041, Sichuan, China
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Gu Y, Zhang Z, Wang YE, Dai Z, Yuan Y, Xiong D, Li J, Walsh PJ, Mao J. Benzylic Aroylation of Toluenes Mediated by a LiN(SiMe 3) 2/Cs + System. J Org Chem 2021; 87:406-418. [PMID: 34958592 DOI: 10.1021/acs.joc.1c02446] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chemoselective deprotonative functionalization of benzylic C-H bonds is challenging, because the arene ring contains multiple aromatic C(sp2)-H bonds, which can be competitively deprotonated and lead to selectivity issues. Recently it was found that bimetallic [MN(SiMe3)2 M = Li, Na]/Cs+ combinations exhibit excellent benzylic selectivity. Herein, is reported the first deprotonative addition of toluenes to Weinreb amides mediated by LiN(SiMe3)2/CsF for the synthesis of a diverse array of 2-arylacetophenones. Surprisingly, simple methyl benzoates also react with toluenes under similar conditions to form 2-arylacetophenones without double addition to give tertiary alcohol products. This finding greatly increases the practicality and impact of this chemistry. Some challenging substrates with respect to benzylic deprotonations, such as fluoro and methoxy substituted toluenes, are selectively transformed to 2-aryl acetophenones. The value of benzylic deprotonation of 3-fluorotoluene is demonstrated by the synthesis of a key intermediate in the preparation of Polmacoxib.
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Affiliation(s)
- Yuanyun Gu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Zhen Zhang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yan-En Wang
- College of Science, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Ziteng Dai
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yaqi Yuan
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Dan Xiong
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Jie Li
- Department of Pharmacy, School of Medicine, Zhejiang University City College, No. 48, Huzhou Road, Hangzhou 310015, P. R. China
| | - Patrick J Walsh
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Jianyou Mao
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
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Anti-inflammatory effect of L-cysteine (a semi-essential amino acid) on 5-FU-induced oral mucositis in hamsters. Amino Acids 2021; 53:1415-1430. [PMID: 34410507 DOI: 10.1007/s00726-021-03062-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 08/05/2021] [Indexed: 01/01/2023]
Abstract
Oral mucositis is an inflammation of the oral mucosa mainly resulting from the cytotoxic effect of 5-fluorouracil (5-FU). The literature shows anti-inflammatory action of L-cysteine (L-cys) involving hydrogen sulfide (H2S). In view of these properties, we investigate the effect of L-cys in oral mucositis induced by 5-FU in hamsters. The animals were divided into the following groups: saline 0.9%, mechanical trauma, 5-FU 60-40 mg/kg, L-cys 10/40 mg and NaHS 27 µg/kg. 5-FU was administered on days 1st to 2nd; 4th day excoriations were made on the mucosa; 5th-6th received L-cys and NaHS. For data analysis, histological analyses, mast cell count, inflammatory and antioxidants markers, and immunohistochemistry (cyclooxygenase-2(COX-2)/inducible nitric oxide synthase (iNOs)/H2S) were performed. Results showed that L-cys decreased levels of inflammatory markers, mast cells, levels of COX-2, iNOS and increased levels of antioxidants markers and H2S when compared to the group 5-FU (p < 0.005). It is suggested that L-cys increases the H2S production with anti-inflammatory action in the 5-FU lesion.
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Okda TM, Abd-Elghaffar SK, Katary MA, Abd-Alhaseeb MM. Chemopreventive and anticancer activities of indomethacin and vitamin D combination on colorectal cancer induced by 1,2-dimethylhydrazine in rats. Biomed Rep 2020; 14:27. [PMID: 33408861 PMCID: PMC7780749 DOI: 10.3892/br.2020.1403] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 11/11/2020] [Indexed: 12/25/2022] Open
Abstract
Several studies have revealed that the combination of indomethacin, a nonsteroidal anti-inflammatory drug (NSAID), and vitamin D reduces the risk of common types of cancers. Nonetheless, research on the deal concentrations used to test the impact of vitamin D on colon cancer is deficient. Along these lines, the aim of the present study was to evaluate the possible role of indomethacin and vitamin D as a preventative as well as a therapeutic operator for colon cancer growth induced by dimethylhydrazine (DMH) in male Albino rats. Fifty male albino rats were utilized in this examination; five groups were assigned from the animals (10 animals each): i) control group considered healthy animals; ii) carcinogen group that received DMH only; iii) prophylactic group; iv) vitamin D and indomethacin-treated group; and v) 5-flurouracil (5-FU) group. Western blot technique was used to determine the expression of carcinoembryonic antigen (CEA) and platelet-derived growth factor (PDGF). Overexpression of CEA and PDGF was noted in the carcinogenic group, while expression of CEA and PDGF in the prophylactic, vitamin D and indomethacin and 5-FU groups were markedly reduced. There was a likewise decline in tissue caspase-3 activity and antioxidant parameters in the carcinogenic group, while, there was an increase in these markers in the 5-FU group as well as the prophylactic and vitamin D and indomethacin groups. The combination of vitamin D and indomethacin markedly reduced the incidence and severity of colon cancer. The molecular, biochemical and histopathological analysis related with the oral administration of vitamin D and indomethacin display its capacity to limit the frequency of colorectal cancer.
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Affiliation(s)
- Tarek M Okda
- Department of Biochemistry, Faculty of Pharmacy, Damanhour University, Damanhour, Behira 2251, Egypt
| | - Sary K Abd-Elghaffar
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut 71515, Egypt
| | - Mohamed A Katary
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour, Behira 2251, Egypt.,Department of Oral Biology and Diagnostic Sciences, Augusta University, Augusta, GA 30912, USA
| | - Mohammad M Abd-Alhaseeb
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour, Behira 2251, Egypt
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Gong H, Cheng W, Wang Y. Tumor necrosis factor-related apoptosis-inducing ligand inhibits the growth and aggressiveness of colon carcinoma via the exogenous apoptosis signaling pathway. Exp Ther Med 2019; 17:41-50. [PMID: 30651763 PMCID: PMC6307519 DOI: 10.3892/etm.2018.6901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 06/15/2018] [Indexed: 12/26/2022] Open
Abstract
Colon cancer is one of the most common types of gastrointestinal tumor. Previous studies have demonstrated that tumor necrosis factor-(TNF)-related apoptosis-inducing ligand (TRAIL) reduces the aggressiveness of colon cancer tumors and promotes the apoptosis of colon carcinoma cells. In the present study, the inhibitory effects of TRAIL were investigated and the potential mechanism of TRAIL-mediated apoptosis was explored in colon cancer cells. Reverse transcription-quantitative polymerase chain reaction, western blotting, immunofluorescence, immunohistochemistry, TUNEL and flow cytometry assays were used to analyze the effects of TRAIL on the growth, migration, invasion and apoptosis of colon tumor cells. In vivo experiments were performed in mice to analyze the therapeutic effects of TRAIL. The results demonstrated that TRAIL significantly suppressed the growth of colorectal tumor cells in a dose-dependent manner (0.5–2.5 mg/ml) and also promoted colon tumor cell death. The migration and invasion of colon tumor cells were inhibited by the downregulation of fibronectin, Vimentin and E-cadherin. The apoptotic rate revealed that TRAIL (2.0 mg/ml) significantly promoted the apoptosis of colon tumor cells by regulating apoptosis-related gene expression. TRAIL administration promoted the apoptosis of colon tumor cells via the exogenous apoptosis signaling pathway due to the upregulation of caspase-3, caspase-8 and nuclear factor-κB protein expression. In vivo assays revealed that TRAIL administration significantly inhibited tumor growth and promoted apoptotic body and lymphocyte infiltration, which led to increased survival in tumor-bearing mice compared with the control group. Immunohistochemistry revealed that P53 and B-cell lymphoma-2 were downregulated in TRAIL-treated tumors. In conclusion, TRAIL treatment significantly inhibited the growth and aggressiveness of colon tumors by inducing apoptosis via the exogenous apoptosis pathway, which suggests that TRAIL may be a potential anticancer agent for colon carcinoma therapy.
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Affiliation(s)
- Hongyan Gong
- Department of General Surgery, Yantaishan Hospital, Yantai, Shandong 264000, P.R. China
| | - Weicai Cheng
- Department of General Surgery, Yantaishan Hospital, Yantai, Shandong 264000, P.R. China
| | - Yong Wang
- Department of General Surgery, Yantaishan Hospital, Yantai, Shandong 264000, P.R. China
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Woo JK, Jang YS, Kang JH, Hwang JI, Seong JK, Lee SJ, Jeon S, Oh GT, Lee HY, Oh SH. Ninjurin1 inhibits colitis-mediated colon cancer development and growth by suppression of macrophage infiltration through repression of FAK signaling. Oncotarget 2018; 7:29592-604. [PMID: 27127177 PMCID: PMC5045419 DOI: 10.18632/oncotarget.9020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 03/29/2016] [Indexed: 12/20/2022] Open
Abstract
Macrophage infiltration promotes tumorigenesis. However, the macrophage infiltration regulatory molecules have not been fully determined. Nerve injury-induced protein 1 (ninjurin1) is a homophilic cell surface adhesion molecule that plays an important role in cell migration and attachment. Although ninjurin1 is believed to play a role in several malignancies, it is unclear whether ninjurin1 expression contributes to cancer progression. We used transgenic mice (tg mice) that overexpressed ninjurin1 on macrophages. We subjected ninjurin1 tg mice to a well-known mouse model of colitis-associated colon cancer in which animals are treated with azoxymethane (AOM) and dextran sulfate sodium (DSS). After AOM and DSS treatment, ninjurin1 tg mice developed fewer and smaller tumors compared with wild-type (wt) mice. Ninjurin1 tg mice also showed reduced infiltration of macrophages and suppressed angiogenesis in the tumor mass. We therefore explored whether ninjurin1 decreases macrophage migration into the tumor sites. After adoptive transfer to tumor-bearing recipients, wild type and ninjurin1 tg mice's peritoneal macrophages were freshly isolated and labeled with carboxyfluorescein succinimidyl ester (CFSE). As expected, compared with that of wt type macrophages, tumor infiltration of ninjurin1-overexpressing macrophages was significantly decreased. We also found that ninjurin1 overexpression suppressed FAK activity. In addition, knockdown of ninjurin1 enhanced FAK activity and migration activity of RAW264.7 cells. Ninjurin1 overexpression on macrophage inhibits tumor growth by suppression of macrophage infiltration through repression of FAK signaling. Ninjurin1 is a key regulator molecule for macrophage migration and Tumor-associated macrophages (TAM) mediated tumorigenesis in vivo.
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Affiliation(s)
- Jong Kyu Woo
- College of Pharmacy, Gachon University, Incheon, Republic of Korea.,College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Yeong-Su Jang
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
| | - Ju-Hee Kang
- College of Pharmacy, Gachon University, Incheon, Republic of Korea.,National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Jong-Ik Hwang
- Graduate School of Medicine, Korea University, Seoul, Republic of Korea
| | - Je Kyung Seong
- College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Sang-Jin Lee
- National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Sejin Jeon
- Department of Life sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Goo Taeg Oh
- Department of Life sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Ho-Young Lee
- College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Seung Hyun Oh
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
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Yang X, Chen GT, Wang YQ, Xian S, Zhang L, Zhu SM, Pan F, Cheng YX. TLR4 promotes the expression of HIF-1α by triggering reactive oxygen species in cervical cancer cells in vitro-implications for therapeutic intervention. Mol Med Rep 2017; 17:2229-2238. [PMID: 29207048 PMCID: PMC5783462 DOI: 10.3892/mmr.2017.8108] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 10/04/2017] [Indexed: 01/06/2023] Open
Abstract
The present study investigated the mechanism underlying Toll-like receptor 4 (TLR4)-mediated stimulation of hypoxia-inducible factor-1α (HIF-1α) activity and its association with reactive oxygen species (ROS) in cervical cancer cells. SiHa cells were cultured and randomized to control, lipopolysaccharide (LPS), methyl-β-cyclodextrin (MβCD)+LPS, ammonium pyrrolidinedithiocarbamate (PDTC)+LPS, ST2825+LPS and small interfering (si) RNA TLR4+LPS treatment groups. Cell proliferation was quantified using an MTT assay, cell cloning was performed using soft agar colony formation and HIF-1α expression was detected by immunocytochemical staining and western blot analyses. Dichloro-dihydro-fluorescein diacetate and lucigenin luminescence assays were used to detect alterations in ROS and nicotinamide-adenine dinucleotide phosphate (NADPH) oxidase content, respectively. Co-localization of TLR4 and HIF-1α was detected by immunofluorescence staining and observed using fluorescence microscopy. Compared with the control group, cell proliferation was enhanced in the LPS-treated group and was not altered in the PDTC+LPS treatment group. Cell proliferation was reduced in all other treatment groups (P<0.05). Compared with the LPS group, cell proliferation decreased in all other groups. Compared with the PDTC+LPS treatment group, cell proliferation significantly decreased when LPS was co-administered with ST2825, siTLR4 and MβCD (P<0.01). Treatment with MβCD+LPS exhibited an increased inhibitory effect on cell activity and proliferation. Compared with the control group, HIF-1α expression was enhanced following treatment with LPS, although it decreased when LPS was co-administered with ST2825, siTLR4 and MβCD (P<0.05). HIF-1α expression decreased following treatment with ST2825, siTLR4, MβCD and PDTC+LPS, compared with treatment with LPS alone. Compared with the PDTC+LPS group, HIF-1α activity decreased when LPS was co-administered with ST2825, siTLR4 and MβCD. NADPH oxidase and ROS levels increased in cells treated with LPS, compared with the control group, at 24 and 12 h following treatment, respectively, and decreased at 12 h when LPS was co-administered with ST2825, siTLR4 and MβCD. There was no difference between the LPS and PDTC+LPS groups with respect to NADPH and ROS levels. Compared with the PDTC+LPS group, NADPH oxidase activity and ROS content decreased when LPS was co-administered with ST2825, siTLR4 and MβCD. NADPH oxidase activity and ROS content were lowest in the MβCD+LPS treatment group, and immunofluorescent staining demonstrated that TLR4 was localized to the cell surface and HIF-1α was primarily localized to the cytoplasm. TLR4 was co-expressed with HIF-1α in cervical cancer cells. The results of the present study suggested that TLR4 signaling primarily promoted HIF-1α activity via activation of lipid rafts/NADPH oxidase redox signaling and may be associated with the initiation and progression of cervical cancer. This promoting effect was stronger in TLR4/lipid rafts/NADPH oxidase pathway than that in TLR4-NF-κB signaling pathway. Therefore, the TLR4/lipid raft-associated redox signal may be a target for therapeutic intervention to prevent the growth of cervical cancer.
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Affiliation(s)
- Xiao Yang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Gan Tao Chen
- Department of Gastroenterology, The Third Renmin Hospital of Xiantao City, Xiantao, Hubei 433000, P.R. China
| | - Yan Qing Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Shu Xian
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Li Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Shao Ming Zhu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Feng Pan
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Yan Xiang Cheng
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Major apoptotic mechanisms and genes involved in apoptosis. Tumour Biol 2016; 37:8471-86. [PMID: 27059734 DOI: 10.1007/s13277-016-5035-9] [Citation(s) in RCA: 362] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 03/28/2016] [Indexed: 12/12/2022] Open
Abstract
As much as the cellular viability is important for the living organisms, the elimination of unnecessary or damaged cells has the opposite necessity for the maintenance of homeostasis in tissues, organs and the whole organism. Apoptosis, a type of cell death mechanism, is controlled by the interactions between several molecules and responsible for the elimination of unwanted cells from the body. Apoptosis can be triggered by intrinsically or extrinsically through death signals from the outside of the cell. Any abnormality in apoptosis process can cause various types of diseases from cancer to auto-immune diseases. Different gene families such as caspases, inhibitor of apoptosis proteins, B cell lymphoma (Bcl)-2 family of genes, tumor necrosis factor (TNF) receptor gene superfamily, or p53 gene are involved and/or collaborate in the process of apoptosis. In this review, we discuss the basic features of apoptosis and have focused on the gene families playing critical roles, activation/inactivation mechanisms, upstream/downstream effectors, and signaling pathways in apoptosis on the basis of cancer studies. In addition, novel apoptotic players such as miRNAs and sphingolipid family members in various kind of cancer are discussed.
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Xu S, Liang T, Li S. Correlation between Polymorphism of TRAIL Gene and Condition of Intervertebral Disc Degeneration. Med Sci Monit 2015; 21:2282-7. [PMID: 26245704 PMCID: PMC4532195 DOI: 10.12659/msm.894157] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been suggested to be related with the pathogenesis and progression of osteoarticular degenerations. This study therefore aimed to investigate the relationship between the polymorphism of the TRAIL gene and the pathogenesis and severity of intervertebral disc degeneration (IDD) via detection of serum TRAIL expression levels. Material/Methods A total of 100 IDD patients in our hospital were recruited in the experimental group, while another cohort of 100 healthy individuals was employed as the control group. Blood samples collected from all people were quantified for TRAIL level using enzyme-linked immunosorbent assay (ELISA), in addition to allele and genotype frequency analysis via fluorescent PCR for TRAIL gene. Results At loci 1525 and 1529 in 3′-untranslated region (UTR) of 5th exon of TRAIL gene, 3 different genotypes were identified: experimental group had higher frequency of 1525CG/1595CC, 1525G and 1595C alleles, compared to the control group (p<0.05). Patients under Schneiderman grade IV had significantly higher allele frequency compared to those at grade II or III. Serum TRAIL level was also higher in the experimental group compared to the control group, and in grade IV patients compared to grade II or III patients (p<0.05). Conclusions The G/C mutation at loci 1525/1595 of TRAIL gene may induce the progression of IDD, as the down-regulation of TRAIL can aggravate the severity of the disease.
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Affiliation(s)
- Shimin Xu
- Department of Orthopaedics, Qingdao University, Qingdao, Shandong, China (mainland)
| | - Ting Liang
- Department of Orthopaedics, Weifang People's Hospital, Weifang, Shandong, China (mainland)
| | - Shuzhong Li
- Department of Orthopaedics, Qingdao University, Qingdao, Shandong, China (mainland)
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