151
|
Lee BB, Kim Y, Kim D, Cho EY, Han J, Kim HK, Shim YM, Kim DH. Metformin and tenovin-6 synergistically induces apoptosis through LKB1-independent SIRT1 down-regulation in non-small cell lung cancer cells. J Cell Mol Med 2019; 23:2872-2889. [PMID: 30710424 PMCID: PMC6433689 DOI: 10.1111/jcmm.14194] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/26/2018] [Accepted: 01/02/2019] [Indexed: 12/20/2022] Open
Abstract
Sirtuin 1 (SIRT1) is known to play a role in a variety of tumorigenesis processes by deacetylating histone and non‐histone proteins; however, antitumour effects by suppressing SIRT1 activity in non‐small cell lung cancer (NSCLC) remain unclear. This study was designed to scrutinize clinicopathological significance of SIRT1 in NSCLC and investigate effects of metformin on SIRT1 inhibition. This study also evaluated new possibilities of drug combination using a SIRT1 inhibitor, tenovin‐6, in NSCLC cell lines. It was found that SIRT1 was overexpressed in 300 (62%) of 485 formalin‐fixed paraffin‐embedded NSCLC tissues. Its overexpression was significantly associated with reduced overall survival and poor recurrence‐free survival after adjusted for histology and pathologic stage. Thus, suppression of SIRT1 expression may be a reasonable therapeutic strategy for NSCLC. Metformin in combination with tenovin‐6 was found to be more effective in inhibiting cell growth than either agent alone in NSCLC cell lines with different liver kinase B1 (LKB1) status. In addition, metformin and tenovin‐6 synergistically suppressed SIRT1 expression in NSCLC cells regardless of LKB1 status. The marked reduction in SIRT1 expression by combination of metformin and tenovin‐6 increased acetylation of p53 at lysine 382 and enhanced p53 stability in LKB1‐deficient A549 cells. The combination suppressed SIRT1 promoter activity more effectively than either agent alone by up‐regulating hypermethylation in cancer 1 (HIC1) binding at SIRT1 promoter. Also, suppressed SIRT1 expression by the combination synergistically induced caspase‐3‐dependent apoptosis. The study concluded that metformin with tenovin‐6 may enhance antitumour effects through LKB1‐independent SIRT1 down‐regulation in NSCLC cells.
Collapse
Affiliation(s)
- Bo Bin Lee
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Yujin Kim
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Dongho Kim
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Eun Yoon Cho
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Joungho Han
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hong Kwan Kim
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young Mog Shim
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Duk-Hwan Kim
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Korea
| |
Collapse
|
152
|
Li C, Ming Y, Wang Z, Xu Q, Yao L, Xu D, Tang Y, Lei X, Li X, Mao Y. GADD45α alleviates acetaminophen-induced hepatotoxicity by promoting AMPK activation. Cell Mol Life Sci 2019; 76:129-145. [PMID: 30151693 PMCID: PMC11105285 DOI: 10.1007/s00018-018-2912-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 07/31/2018] [Accepted: 08/22/2018] [Indexed: 02/08/2023]
Abstract
As an analgesic and antipyretic drug, acetaminophen (APAP) is commonly used and known to be safe at therapeutic doses. In many countries, the overuse of APAP provokes acute liver injury and even liver failure. APAP-induced liver injury (AILI) is the most used experimental model of drug-induced liver injury (DILI). Here, we have demonstrated elevated levels of growth arrest and DNA damage-inducible 45α (GADD45α) in the livers of patients with DILI/AILI, in APAP-injured mouse livers and in APAP-treated hepatocytes. GADD45α exhibited a protective effect against APAP-induced liver injury and alleviated the accumulation of small lipid droplets in vitro and in vivo. We found that GADD45α promoted the activation of AMP-activated protein kinase α and induced fatty acid beta-oxidation, tricarboxylic acid cycle (TCA) and glycogenolysis-related gene expression after APAP exposure. Liquid chromatography-mass spectrometry (LC-MS) analysis showed that GADD45α increased the levels of TCA cycle metabolites. Co-immunoprecipitation analysis showed that Ppp2cb, a catalytic subunit of protein phosphatase 2A, could interact directly with GADD45α. Our results indicate that hepatocyte GADD45α might represent a therapeutic target to prevent and rescue liver injury caused by APAP.
Collapse
Affiliation(s)
- Chunmin Li
- Division of Gastroenterology and Hepatology, School of Medicine, Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yanan Ming
- Division of Gastroenterology and Hepatology, School of Medicine, Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zhengyang Wang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Qingling Xu
- Department of Hepatology, Mengchao Hepatobiliary Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Lvfeng Yao
- Department of Hepatology, Mengchao Hepatobiliary Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Dongke Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Yingyue Tang
- Division of Gastroenterology and Hepatology, School of Medicine, Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaohong Lei
- Division of Gastroenterology and Hepatology, School of Medicine, Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaobo Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.
| | - Yimin Mao
- Division of Gastroenterology and Hepatology, School of Medicine, Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China.
| |
Collapse
|
153
|
Zanetti TA, Biazi BI, Baranoski A, D'Epiro GFR, Corveloni AC, Semprebon SC, Coatti GC, Mantovani MS. Response of HepG2/C3A cells supplemented with sodium selenite to hydrogen peroxide-induced oxidative stress. J Trace Elem Med Biol 2018; 50:209-215. [PMID: 30262281 DOI: 10.1016/j.jtemb.2018.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/20/2018] [Accepted: 07/09/2018] [Indexed: 10/28/2022]
Abstract
Oxidative stress (OS) is involved in the onset of various pathological processes, and sodium selenite (Na2SeO3) is known to have antioxidant activity. This study evaluated the cellular response of human HepG2/C3A cells supplemented with Na2SeO3 when exposed to hydrogen peroxide (H2O2)-induced OS. We analyzed cytotoxicity, cell proliferation, and genotoxicity in comparison with molecular data of mRNA and protein expression. The MTT and comet assays revealed that Na2SeO3 conferred cytoprotective and anti-genotoxic effects. In contrast, RTCA (Real-Time Cell Analysis) and flow cytometry analysis revealed that Na2SeO3 did not inhibit H2O2-induced anti-proliferative effects or cell cycle arrest (G2/M). Cells exposed simultaneously to Na2SeO3 and H2O2 showed overexpression of GPX1 mRNA, indicating that Na2SeO3 influenced the cellular antioxidant system. Furthermore, downregulation of CAT mRNA and SOD1 and PRX2 proteins induced by H2O2, was minimal after the Na2SeO3+H2O2 treatment. Although normalization of CCN2B mRNA expression by Na2SeO3 was observed after the Na2SeO3+H2O2 treatment, this was not observed for other genes such as CDKN1A, CDKN1C, and CDKN2B, which are related to cell cycle control, nor for GADD45A, which is involved in the cellular response to DNA damage. Furthermore, both CDKN1B and CDKN1C expression were downregulated in HepG2/C3A cells treated with Na2SeO3 only. Our results indicate that cellular response to Na2SeO3 involved the modulation of the antioxidant system. Na2SeO3 was unable completely recover HepG2/C3A cells from H2O2-induced oxidative damage, as evidenced by analysis of cell proliferation kinetics, cell cycle assay, and expression of key genes involved in cell cycle progression and response to DNA damage.
Collapse
Affiliation(s)
- Thalita Alves Zanetti
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Rodovia Celso Garcia Cid, Pr 445 Km 380, Londrina, Paraná, Brazil.
| | - Bruna Isabela Biazi
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Rodovia Celso Garcia Cid, Pr 445 Km 380, Londrina, Paraná, Brazil
| | - Adrivanio Baranoski
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Rodovia Celso Garcia Cid, Pr 445 Km 380, Londrina, Paraná, Brazil
| | - Gláucia Fernanda Rocha D'Epiro
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Rodovia Celso Garcia Cid, Pr 445 Km 380, Londrina, Paraná, Brazil
| | - Amanda Cristina Corveloni
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Rodovia Celso Garcia Cid, Pr 445 Km 380, Londrina, Paraná, Brazil
| | - Simone Cristine Semprebon
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Rodovia Celso Garcia Cid, Pr 445 Km 380, Londrina, Paraná, Brazil
| | - Giuliana Castello Coatti
- Human Genome and Stem-Cell Research Center. Institute of Biosciences, University of São Paulo - USP, Rua do Matão - Travessa 13, n. 106, São Paulo, São Paulo, Brazil
| | - Mário Sérgio Mantovani
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Rodovia Celso Garcia Cid, Pr 445 Km 380, Londrina, Paraná, Brazil
| |
Collapse
|
154
|
Mitori H, Izawa T, Kuwamura M, Matsumoto M, Yamate J. Gene expression profile in retinal excitotoxicity induced by L-glutamate in neonatal rats. J Toxicol Pathol 2018; 31:301-306. [PMID: 30393434 PMCID: PMC6206281 DOI: 10.1293/tox.2018-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 07/06/2018] [Indexed: 11/24/2022] Open
Abstract
In neonatal rats, glutamate could induce retinal thinning depending on the development
stage, and the severity peaked at treatment on postnatal day (PND) 8. To elucidate the
molecular mechanism of retinal thinning induced by L-glutamate in neonatal rats, we
investigated the time-course gene expression profile in the developing retina in addition
to initial histopathological changes. Histopathologically, apoptotic cells in the inner
retina were observed at 6 hours after treatment on PNDs 4, 6 and 8, and inflammatory cell
infiltration was noted at 24 hours. Comprehensive gene expression analysis conducted on
PNDs 4 and 8 indicated that cell death/proliferation- and inflammation-related genes were
upregulated and that neuron development- and neurotransmitter-related genes were
downregulated. Furthermore, quantitative RT-PCR analysis of apoptosis- and
inflammation-related genes performed on PNDs 4, 6, 8, 10 and 12 showed that the
time-course changes of the gene expression ratios of Gadd45b and
Ccl3 seemed to be related to histopathological changes of the retina
induced by L-glutamate. These results revealed that the association of initial
histopathological changes with the gene expression profile in the retina induced by
L-glutamate and that Gadd45b and Ccl3 are considered to
participate in retinal thinning induced by L-glutamate in neonatal rats.
Collapse
Affiliation(s)
- Hikaru Mitori
- Drug Safety Research Labs., Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba-shi, Ibaraki, 305-8585, Japan.,Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Rinku Ourai Kita 1-58 Izumisano-shi, Osaka 598-8531, Japan
| | - Takeshi Izawa
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Rinku Ourai Kita 1-58 Izumisano-shi, Osaka 598-8531, Japan
| | - Mitsuru Kuwamura
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Rinku Ourai Kita 1-58 Izumisano-shi, Osaka 598-8531, Japan
| | - Masahiro Matsumoto
- Drug Safety Research Labs., Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba-shi, Ibaraki, 305-8585, Japan
| | - Jyoji Yamate
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Rinku Ourai Kita 1-58 Izumisano-shi, Osaka 598-8531, Japan
| |
Collapse
|
155
|
Abstract
Zika virus (ZIKV) is a significant global health threat, as infection has been linked to serious neurological complications, including microcephaly. Using a human stem cell-derived neural progenitor model system, we find that a critical cellular quality control process called the nonsense-mediated mRNA decay (NMD) pathway is disrupted during ZIKV infection. Importantly, disruption of the NMD pathway is a known cause of microcephaly and other neurological disorders. We further identify an interaction between the capsid protein of ZIKV and up-frameshift protein 1 (UPF1), the master regulator of NMD, and show that ZIKV capsid targets UPF1 for degradation. Together, these results offer a new mechanism for how ZIKV infection can cause neuropathology in the developing brain. Zika virus (ZIKV) infection of neural progenitor cells (NPCs) in utero is associated with neurological disorders, such as microcephaly, but a detailed molecular understanding of ZIKV-induced pathogenesis is lacking. Here we show that in vitro ZIKV infection of human cells, including NPCs, causes disruption of the nonsense-mediated mRNA decay (NMD) pathway. NMD is a cellular mRNA surveillance mechanism that is required for normal brain size in mice. Using affinity purification-mass spectrometry, we identified multiple cellular NMD factors that bind to the viral capsid protein, including the central NMD regulator up-frameshift protein 1 (UPF1). Endogenous UPF1 interacted with the ZIKV capsid protein in coimmunoprecipitation experiments, and capsid expression posttranscriptionally downregulated UPF1 protein levels, a process that we confirmed occurs during ZIKV infection. Cellular fractionation studies show that the ZIKV capsid protein specifically targets nuclear UPF1 for degradation via the proteasome. A further decrease in UPF1 levels by RNAi significantly enhanced ZIKV infection in NPC cultures, consistent with a model in which NMD restricts ZIKV infection in the fetal brain. We propose that ZIKV, via the capsid protein, has evolved a strategy to lower UPF1 levels and dampen antiviral activities of NMD, which in turn contributes to neuropathology in vivo.
Collapse
|
156
|
Wang W, Wu J, Zhang Q, Li X, Zhu X, Wang Q, Cao S, Du L. Mitochondria‐mediated apoptosis was induced by oleuropein in H1299 cells involving activation of p38 MAP kinase. J Cell Biochem 2018; 120:5480-5494. [DOI: 10.1002/jcb.27827] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 09/12/2018] [Indexed: 01/13/2023]
Affiliation(s)
- Wang Wang
- Key Laboratory of Bio‐Resources and Eco‐Environment of the Ministry of Education, College of Life Sciences, Sichuan University Chengdu China
| | - Jibing Wu
- Key Laboratory of Bio‐Resources and Eco‐Environment of the Ministry of Education, College of Life Sciences, Sichuan University Chengdu China
| | - Qingyan Zhang
- Key Laboratory of Bio‐Resources and Eco‐Environment of the Ministry of Education, College of Life Sciences, Sichuan University Chengdu China
| | - Xue Li
- Key Laboratory of Bio‐Resources and Eco‐Environment of the Ministry of Education, College of Life Sciences, Sichuan University Chengdu China
| | - Xixi Zhu
- Key Laboratory of Bio‐Resources and Eco‐Environment of the Ministry of Education, College of Life Sciences, Sichuan University Chengdu China
| | - Qiuying Wang
- Key Laboratory of Bio‐Resources and Eco‐Environment of the Ministry of Education, College of Life Sciences, Sichuan University Chengdu China
| | - Shasha Cao
- Key Laboratory of Bio‐Resources and Eco‐Environment of the Ministry of Education, College of Life Sciences, Sichuan University Chengdu China
| | - Linfang Du
- Key Laboratory of Bio‐Resources and Eco‐Environment of the Ministry of Education, College of Life Sciences, Sichuan University Chengdu China
| |
Collapse
|
157
|
Calcitriol combined with calcium chloride causes apoptosis in undifferentiated adipose tissue-derived human mesenchymal stem cells, but this effect decreases during adipogenic differentiation. Biomed Pharmacother 2018; 108:914-924. [PMID: 30372903 DOI: 10.1016/j.biopha.2018.09.083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/01/2018] [Accepted: 09/14/2018] [Indexed: 12/20/2022] Open
Abstract
Calcitriol, the bioactive hormone of vitamin D, is currently linked to several diseases, such as obesity and gain of adipose mass, due to its liposolubility and, consequently, its sequestration by adipocytes. As rates of obesity continue to increase, research on the biology of weight gain should be encouraged. This study evaluated the effects of calcitriol combined with CaCl2 on adipose tissue-derived human mesenchymal stem cells. We evaluated the cytotoxicity of the combination by MTT assays, in which undifferentiated cells and cells undergoing adipogenic differentiation were tested for 7 and 14 days. The results demonstrated that the combination of calcitriol at the IC50 and CaCl2 at the IC20 was effective at reducing the viability of mesenchymal stem cells, but with the progression of cell differentiation towards adipocytes, cell resistance to the cytotoxic effects increased. The percentages of dead cells were 88.29, 57.45 and 28.81% for undifferentiated cells and cells exposed to differentiation medium for 7 and 14 days, respectively. Undifferentiated cells were evaluated for apoptosis in response to the same combination using Annexin V assays, and a possible onset of programmed cell death in undifferentiated cells was detected. Additionally, the combination of the compounds altered the membrane permeability of undifferentiated cells by 16 percentage points and induced cell cycle arrest in S phase due to the accumulation of damage. An evaluation of gene expression revealed the overexpression of the GADD45 and ATM genes and the underexpression of the P21, P53, ATR, BCL-2, EIF2 AK3, IGF1R, DNAse-2, ATF, MAP3K4, ENGO-G, CASP3, CASP7 and CASP8 genes. Our results provide valuable insights into the biology of obesity and may contribute to the development of new anti-obesity therapies focusing on the inhibition of adipose tissue mesenchymal stem cell hyperplasia and adipogenic differentiation.
Collapse
|
158
|
Ferreira J, Ramos AA, Almeida T, Azqueta A, Rocha E. Drug resistance in glioblastoma and cytotoxicity of seaweed compounds, alone and in combination with anticancer drugs: A mini review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 48:84-93. [PMID: 30195884 DOI: 10.1016/j.phymed.2018.04.062] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/19/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Glioblastomas (GBM) are one of the most aggressive tumor of the central nervous system with an average life expectancy of only 1-2 years after diagnosis, even with the use of advanced treatments with surgery, radiation, and chemotherapy. There are several anticancer drugs with alkylating properties that have been used in the therapy of malignant gliomas. Temozolomide (TMZ) is one of them, widely used even in combination with ionizing radiation. However, the main disadvantage of using these types of drugs in the treatment of GBM is the development of cancer drug resistance. Research of bioactive compounds with anticancer activity has been heavily explored. PURPOSE This review focuses on a carotenoid and a phlorotannin present in seaweed, namely fucoxanthin and phloroglucinol, and their anticancer activity against glioblastoma. The combination of natural compounds with conventional drugs is also discussed. CONCLUSION Several natural compounds existing in seaweeds, such as fucoxanthin and phoroglucinol, have shown cytotoxic activity in models in vitro and in vivo, acting through different molecular mechanisms, such as antioxidant, antiproliferative, DNA damage/DNA repair, proapoptotic, antiangiogenic and antimetastic. Within the scope of interactions with conventional drugs, there are evidences that some seaweed compounds could be used to potentiate the action of anticancer drugs. However, their effects and mechanisms of action, alone or in combination with anticancer drugs, namely TMZ, in glioblastoma cell, still few explored and require more attention due to the unquestionable high potential of these marine compounds.
Collapse
Affiliation(s)
- Joana Ferreira
- Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR - Interdisciplinary Center for Marine and Environmental Research, U.Porto - University of Porto, Avenida General Norton de Matos s/n, Matosinhos 4450-208, Portugal; Laboratory of Histology and Embryology, Department of Microscopy, ICBAS - Institute of Biomedical Sciences Abel Salazar, U.Porto - University of Porto, Rua de Jorge Viterbo Ferreira, n° 228, Porto 4050-313, Portugal; FCUP - Faculty of Sciences, U.Porto - University of Porto (U.Porto), Rua do Campo Alegre, Porto 4169-007, Portugal
| | - Alice Abreu Ramos
- Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR - Interdisciplinary Center for Marine and Environmental Research, U.Porto - University of Porto, Avenida General Norton de Matos s/n, Matosinhos 4450-208, Portugal; Laboratory of Histology and Embryology, Department of Microscopy, ICBAS - Institute of Biomedical Sciences Abel Salazar, U.Porto - University of Porto, Rua de Jorge Viterbo Ferreira, n° 228, Porto 4050-313, Portugal.
| | - Tânia Almeida
- Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR - Interdisciplinary Center for Marine and Environmental Research, U.Porto - University of Porto, Avenida General Norton de Matos s/n, Matosinhos 4450-208, Portugal; Laboratory of Histology and Embryology, Department of Microscopy, ICBAS - Institute of Biomedical Sciences Abel Salazar, U.Porto - University of Porto, Rua de Jorge Viterbo Ferreira, n° 228, Porto 4050-313, Portugal; FCUP - Faculty of Sciences, U.Porto - University of Porto (U.Porto), Rua do Campo Alegre, Porto 4169-007, Portugal
| | - Amaya Azqueta
- Department of Pharmacology and Toxicology, University of Navarra, C/ Irunlarrea, CP 31008 Pamplona, Navarra, Spain
| | - Eduardo Rocha
- Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR - Interdisciplinary Center for Marine and Environmental Research, U.Porto - University of Porto, Avenida General Norton de Matos s/n, Matosinhos 4450-208, Portugal; Laboratory of Histology and Embryology, Department of Microscopy, ICBAS - Institute of Biomedical Sciences Abel Salazar, U.Porto - University of Porto, Rua de Jorge Viterbo Ferreira, n° 228, Porto 4050-313, Portugal
| |
Collapse
|
159
|
Kang N, Wang Y, Guo S, Ou Y, Wang G, Chen J, Li D, Zhan Q. Mutant TP53 G245C and R273H promote cellular malignancy in esophageal squamous cell carcinoma. BMC Cell Biol 2018; 19:16. [PMID: 30126368 PMCID: PMC6102840 DOI: 10.1186/s12860-018-0167-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 08/03/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND TP53 gene mutations occur in more than 50% of human cancers and the vast majority of these mutations in human cancers are missense mutations, which broadly occur in DNA binding domain (DBD) (Amino acids 102-292) and mainly reside in six "hotspot" residues. TP53 G245C and R273H point mutations are two of the most frequent mutations in tumors and have been verified in several different cancers. In the previous study of the whole genome sequencing (WGS), we found some mutations of TP53 DBD in esophageal squamous cell carcinoma (ESCC) clinical samples. We focused on two high-frequent mutations TP53 p.G245C and TP53 p.R273H and investigated their oncogenic roles in ESCC cell lines, p53-defective cell lines H1299 and HCT116 p53-/-. RESULTS MTS and colony formation assays showed that mutant TP53 G245C and R273H increased cell vitality and proliferation. Flow cytometry results revealed inhibition of ultraviolet radiation (UV)- and ionizing radiation (IR)- induced apoptosis and disruption of TP53-mediated cell cycle arrest after UV, IR and Nocodazole treatment. Transwell assays indicated that mutant TP53 G245C and R273H enhanced cell migration and invasion abilities. Moreover, western blot revealed that they were able to suppress the expression of TP53 downstream genes in the process of apoptosis and cell cycle arrest induced by UV, which suggests that these two mutations can influence apoptosis and growth arrest might be due, at least in part, to down-regulate the expression of P21, GADD45α and PARP. CONCLUSIONS These results indicate that mutant TP53 G245C and R273H can lead to more aggressive phenotypes and enhance cancer cell malignancy, which further uncover TP53 function in carcinogenesis and might be useful in clinical diagnosis and therapy of TP53 mutant cancers.
Collapse
Affiliation(s)
- Nan Kang
- State Key Laboratory of Molecular Oncology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Cancer Center/Cancer Hospital, Beijing, 100021 China
- Department of Pathology, Peking University People’s Hospital, Beijing, 100044 China
| | - Yu Wang
- State Key Laboratory of Molecular Oncology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Cancer Center/Cancer Hospital, Beijing, 100021 China
| | - Shichao Guo
- State Key Laboratory of Molecular Oncology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Cancer Center/Cancer Hospital, Beijing, 100021 China
| | - Yunwei Ou
- State Key Laboratory of Molecular Oncology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Cancer Center/Cancer Hospital, Beijing, 100021 China
| | - Guangchao Wang
- State Key Laboratory of Molecular Oncology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Cancer Center/Cancer Hospital, Beijing, 100021 China
| | - Jie Chen
- Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Dan Li
- State Key Laboratory of Molecular Oncology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Cancer Center/Cancer Hospital, Beijing, 100021 China
| | - Qimin Zhan
- State Key Laboratory of Molecular Oncology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Cancer Center/Cancer Hospital, Beijing, 100021 China
- Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing, China
| |
Collapse
|
160
|
Abstract
During the last years, it has become evident that miRNAs are important players in almost all physiological and pathological processes, including viral infections. Enterovirus infections range from mild to severe acute infections concerning several organ systems and are also associated with chronic diseases. In this review, we summarize the findings on the impact of acute and persistent enterovirus infection on the expression of cellular miRNAs. Furthermore, the currently available data on the regulation of cellular or viral targets by the dysregulated miRNAs are reviewed. Finally, a translational perspective, namely the use of miRNAs as biomarkers of enterovirus infection and as antiviral strategy is discussed.
Collapse
Affiliation(s)
- Ilka Engelmann
- a Laboratoire de Virologie EA3610, Faculté de Médecine, CHU Lille, University of Lille , Lille , France
| | - Enagnon Kazali Alidjinou
- a Laboratoire de Virologie EA3610, Faculté de Médecine, CHU Lille, University of Lille , Lille , France
| | - Antoine Bertin
- a Laboratoire de Virologie EA3610, Faculté de Médecine, CHU Lille, University of Lille , Lille , France
| | - Famara Sane
- a Laboratoire de Virologie EA3610, Faculté de Médecine, CHU Lille, University of Lille , Lille , France
| | - Didier Hober
- a Laboratoire de Virologie EA3610, Faculté de Médecine, CHU Lille, University of Lille , Lille , France
| |
Collapse
|
161
|
Insights into Male Androgenetic Alopecia: Differential Gene Expression Profiling of Plucked Hair Follicles and Integration with Genetic Data. J Invest Dermatol 2018; 139:235-238. [PMID: 30009830 DOI: 10.1016/j.jid.2018.06.182] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 06/07/2018] [Accepted: 06/25/2018] [Indexed: 12/13/2022]
|
162
|
Zhao Z, Gao Y, Guan X, Liu Z, Jiang Z, Liu X, Lin H, Yang M, Li C, Yang R, Zou S, Wang X. GADD45B as a Prognostic and Predictive Biomarker in Stage II Colorectal Cancer. Genes (Basel) 2018; 9:genes9070361. [PMID: 30029519 PMCID: PMC6071283 DOI: 10.3390/genes9070361] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/06/2018] [Accepted: 07/10/2018] [Indexed: 12/26/2022] Open
Abstract
GADD45B acts as a member of the growth arrest DNA damage-inducible gene family, which has demonstrated to play critical roles in DNA damage repair, cell growth, and apoptosis. This study aimed to explore the potential relationship between GADD45B expression and tumor progression and evaluate the clinical value of GADD45B in stage II colorectal cancer (CRC). The expression patterns and prognostic value of GADD45B in CRC were analyzed based on The Cancer Genomic Atlas (TCGA). GADD45B expression features of 306 patients with stage II CRC and 201 patients with liver metastasis of CRC were investigated using immunochemical staining on tissue microarrays. Afterward, survival analysis and stratification analysis were performed in stage II to explore the prognostic and predictive significance of GADD45B. Overexpressed GADD45B is associated with poorer prognosis for CRC patients both in overall survival (OS) (p < 0.001) and disease-free survival (DFS) (p = 0.001) based on the TCGA database. Analysis results according to the stage II CRC cohort and the liver metastatic CRC cohort revealed that GADD45B was gradually upregulated in normal mucosa including primary colorectal cancer (PCC). Colorectal liver metastases (CLM) tissues were arranged in order (normal tissue vs. PCC p = 0.005 and PCC vs. CLM p = 0.001). The low GADD45B group had a significantly longer five-year OS (p = 0.001) and progression-free survival (PFS) (p < 0.001) than the high GADD45B group for the stage II patients. The multivariate Cox regression analysis results proved that the expression level of GADD45B was an independent prognostic factor for stage II after radical surgery (OS: Hazard Ratio (HR) 0.479, [95% confidence interval (CI) 0.305–0.753] and PFS:HR 0.490, [95% CI 0.336–0.714]). In high GADD45B expression subgroup of stage II cohort, the patients who underwent adjuvant chemotherapy had longer PFS than those who did not (p = 0.008). High expression levels of GADD45B is an independent prognostic factor of decreased OS and PFS in stage II CRC patients. The stage II CRC patients with high GADD45B expression might benefit from adjuvant chemotherapy.
Collapse
Affiliation(s)
- Zhixun Zhao
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China.
| | - Yibo Gao
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China.
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Xu Guan
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Zheng Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Zheng Jiang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Xiuyun Liu
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Huixin Lin
- Geneis (Beijing) Co., Ltd., Beijing 100102, China.
| | - Ming Yang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Chunxiang Li
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Runkun Yang
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China.
| | - Shuangmei Zou
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Xishan Wang
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China.
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| |
Collapse
|
163
|
Kabir MF, Mohd Ali J, Haji Hashim O. Microarray gene expression profiling in colorectal (HCT116) and hepatocellular (HepG2) carcinoma cell lines treated with Melicope ptelefolia leaf extract reveals transcriptome profiles exhibiting anticancer activity. PeerJ 2018; 6:e5203. [PMID: 30042885 PMCID: PMC6054789 DOI: 10.7717/peerj.5203] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/19/2018] [Indexed: 12/20/2022] Open
Abstract
Background We have previously reported anticancer activities of Melicope ptelefolia (MP) leaf extracts on four different cancer cell lines. However, the underlying mechanisms of actions have yet to be deciphered. In the present study, the anticancer activity of MP hexane extract (MP-HX) on colorectal (HCT116) and hepatocellular carcinoma (HepG2) cell lines was characterized through microarray gene expression profiling. Methods HCT116 and HepG2 cells were treated with MP-HX for 24 hr. Total RNA was extracted from the cells and used for transcriptome profiling using Applied Biosystem GeneChip™ Human Gene 2.0 ST Array. Gene expression data was analysed using an Applied Biosystems Expression Console and Transcriptome Analysis Console software. Pathway enrichment analyses was performed using Ingenuity Pathway Analysis (IPA) software. The microarray data was validated by profiling the expression of 17 genes through quantitative reverse transcription PCR (RT-qPCR). Results MP-HX induced differential expression of 1,290 and 1,325 genes in HCT116 and HepG2 cells, respectively (microarray data fold change, MA_FC ≥ ±2.0). The direction of gene expression change for the 17 genes assayed through RT-qPCR agree with the microarray data. In both cell lines, MP-HX modulated the expression of many genes in directions that support antiproliferative activity. IPA software analyses revealed MP-HX modulated canonical pathways, networks and biological processes that are associated with cell cycle, DNA replication, cellular growth and cell proliferation. In both cell lines, upregulation of genes which promote apoptosis, cell cycle arrest and growth inhibition were observed, while genes that are typically overexpressed in diverse human cancers or those that promoted cell cycle progression, DNA replication and cellular proliferation were downregulated. Some of the genes upregulated by MP-HX include pro-apoptotic genes (DDIT3, BBC3, JUN), cell cycle arresting (CDKN1A, CDKN2B), growth arrest/repair (TP53, GADD45A) and metastasis suppression (NDRG1). MP-HX downregulated the expression of genes that could promote anti-apoptotic effect, cell cycle progression, tumor development and progression, which include BIRC5, CCNA2, CCNB1, CCNB2, CCNE2, CDK1/2/6, GINS2, HELLS, MCM2/10 PLK1, RRM2 and SKP2. It is interesting to note that all six top-ranked genes proposed to be cancer-associated (PLK1, MCM2, MCM3, MCM7, MCM10 and SKP2) were downregulated by MP-HX in both cell lines. Discussion The present study showed that the anticancer activities of MP-HX are exerted through its actions on genes regulating apoptosis, cell proliferation, DNA replication and cell cycle progression. These findings further project the potential use of MP as a nutraceutical agent for cancer therapeutics.
Collapse
Affiliation(s)
- Mohammad Faujul Kabir
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Johari Mohd Ali
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Onn Haji Hashim
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
164
|
Sarkar P. Response of DNA damage genes in acrolein-treated lung adenocarcinoma cells. Mol Cell Biochem 2018; 450:187-198. [PMID: 29968166 DOI: 10.1007/s11010-018-3385-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 06/16/2018] [Indexed: 10/28/2022]
Abstract
Acrolein is a α-β-unsaturated aldehyde and is toxic to human upon its exposure from the environment. Sources of exposure to acrolein can be from heating cooking oil, automobile exhaust, tobacco smoke, and plastic waste. Acrolein exposure to lung is a major concern because of its volatile nature and due to its presence in the urban atmospheric air. Acrolein being highly reactive forms DNA and protein adducts, thereby making the cells vulnerable to long-term damage. Such long-term effect can lead to high susceptibility towards malignant transformation as has been reported in cigarette smokers. The response of DNA damaging genes by acrolein can perhaps give an insight to the cause of damage in the DNA by acrolein. The aim of this study was to examine the response of the DNA damage responsive genes by acrolein in A549 lung adenocarcinoma cells. Acrolein treatment at IC50 concentration showed a robust response of the DNA repair genes but eventually failed to rescue the cells from undergoing apoptosis. The cells pretreated with acrolein and followed by growing the same cells in fresh medium in the absence of acrolein did not help the cells to proliferate. These results conclude that exposure to acrolein marks long-lasting damage to DNA, irrespective of the DNA repair response.
Collapse
Affiliation(s)
- Poonam Sarkar
- College of Pharmacy and Health Sciences, Texas Southern University, 3100 Cleburne Street, Houston, TX, 77004, USA. .,Department of Pediatrics, Texas Children's Cancer Center, Baylor College of Medicine, 1102 Bates St. Feigin Center, Houston, TX, 77030, USA.
| |
Collapse
|
165
|
Tamamori-Adachi M, Koga A, Susa T, Fujii H, Tsuchiya M, Okinaga H, Hisaki H, Iizuka M, Kitajima S, Okazaki T. DNA damage response induced by Etoposide promotes steroidogenesis via GADD45A in cultured adrenal cells. Sci Rep 2018; 8:9636. [PMID: 29941883 PMCID: PMC6018231 DOI: 10.1038/s41598-018-27938-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 06/12/2018] [Indexed: 11/17/2022] Open
Abstract
Glucocorticoid production is regulated by adrenocorticotropic hormone (ACTH) via the cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA) pathway in the adrenal cortex, but the changes in steroidogenesis associated with aging are unknown. In this study, we show that cell-autonomous steroidogenesis is induced by non-ACTH- mediated genotoxic stress in human adrenocortical H295R cells. Low-dose etoposide (EP) was used to induce DNA damage as a genotoxic stress, leading to cellular senescence. We found that steroidogenesis was promoted in cells stained with γH2AX, a marker of DNA damaged cells. Among stress-associated and p53-inducible genes, the expression of GADD45A and steroidogenesis-related genes was significantly upregulated. Immunofluorescence analysis revealed that GADD45A accumulated in the nuclei. Metabolite assay using cultured media showed that EP-treated cells were induced to produce and secrete considerable amounts of glucocorticoid. Knockdown of GADD45A using small interfering RNA markedly inhibited the EP-induced upregulation of steroidogenesis-related gene expression, and glucocorticoid production. A p38MAPK inhibitor, but not a PKA inhibitor, suppressed EP-stimulated steroidogenesis. These results suggest that DNA damage itself promotes steroidogenesis via one or more unprecedented non-ACTH-mediated pathway. Specifically, GADD45A plays a crucial role in the steroidogenic processes triggered by EP-stimulated genotoxic stress. Our study sheds new light on an alternate mechanism of steroidogenesis in the adrenal cortex.
Collapse
Affiliation(s)
- Mimi Tamamori-Adachi
- Department of Biochemistry, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.
| | - Akane Koga
- Department of Biochemistry, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.,Department of Practical Pharmacy, Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Takao Susa
- Department of Biochemistry, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Hiroko Fujii
- Department of Biochemistry, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.,Department of General Medicine, National Defense Medical College, 3-2, Namiki, Tokorozawa City, Saitama, 359-8513, Japan
| | - Masao Tsuchiya
- Department of Practical Pharmacy, Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Hiroko Okinaga
- Department of Internal Medicine, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Harumi Hisaki
- Department of Biochemistry, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Masayoshi Iizuka
- Department of Biochemistry, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Shigetaka Kitajima
- Department of Biochemical Genetics, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8605, Japan
| | - Tomoki Okazaki
- Department of Biochemistry, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| |
Collapse
|
166
|
Moon SJ, Kim HY, Kim YH, Kim KS, Noh JR, Kim HJ, Choi JH, Hwang JH, Lee CH. GADD45β plays a protective role in acute lung injury by regulating apoptosis in experimental sepsis in vivo. J Cell Physiol 2018; 233:7128-7138. [PMID: 29741778 DOI: 10.1002/jcp.26635] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/30/2018] [Indexed: 12/24/2022]
Abstract
Sepsis is a systemic inflammatory response syndrome due to microbial infection. Growth arrest and DNA-damage-inducible 45 beta (GADD45β) are induced by genotoxic stress and inflammatory cytokines. However, the role of GADD45β during bacterial infection remains unclear. This study was aimed at investigating the role of GADD45β in sepsis. We used GADD45β-knockout (KO) mice and C57BL/6J wild-type (WT) mice. Experimental sepsis was induced by lipopolysaccharide (LPS) administration or cecal ligation and puncture (CLP). Sepsis-induced mortality was higher in GADD45β-KO mice than in WT mice. Histopathological data demonstrated LPS treatment markedly increased lung injury in GADD45β-KO mice as compared to that in WT mice; however, no significant difference was observed in the liver and kidney. Further, mRNA levels of inflammatory cytokines, such as Il-1β, Il-6, Il-10, and Tnf-α, were higher in the lungs of LPS-treated GADD45β-KO mice than in WT mice. Interestingly, plasma levels of these inflammatory cytokines were decreased in LPS-administered GADD45β-KO mice. A significant increase in lung cell apoptosis was observed at early time points in GADD45β-KO mice after administration of LPS as compared to that in WT mice. In line with LPS-induced apoptosis, JNK, and p38 activity was higher in the lung of GADD45β-KO mice at 3 hr after LPS treatment than that in WT mice. In summary, this study is the first to demonstrate the protective role of GADD45β in sepsis and the results suggest that GADD45β could be used as a novel therapeutic target to cure sepsis.
Collapse
Affiliation(s)
- Sung-Je Moon
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Hyun-Yong Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Yong-Hoon Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea.,University of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea
| | - Kyoung-Shim Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea.,University of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea
| | - Jung-Ran Noh
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Hyun-Jong Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Ji-Hyun Choi
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Jung H Hwang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea.,University of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea.,University of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea
| |
Collapse
|
167
|
Twayana KS, Ravanan P. Eukaryotic cell survival mechanisms: Disease relevance and therapeutic intervention. Life Sci 2018; 205:73-90. [PMID: 29730169 DOI: 10.1016/j.lfs.2018.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/17/2018] [Accepted: 05/01/2018] [Indexed: 01/10/2023]
Abstract
Cell responds to stress by activating various modes of stress responses which aim for minimal damage to cells and speedy recovery from the insults. However, unresolved stresses exceeding the tolerance limit lead to cell death (apoptosis, autophagy etc.) that helps to get rid of damaged cells and protect cell integrity. Furthermore, aberrant stress responses are the hallmarks of several pathophysiologies (neurodegeneration, metabolic diseases, cancer etc.). The catastrophic remodulation of stress responses is observed in cancer cells in favor of their uncontrolled growth. Whereas pro-survival stress responses redirected to death signaling provokes excessive cell death in neurodegeneration. Clear understanding of such mechanistic link to disease progression is required in order to modulate these processes for new therapeutic targets. The current review explains this with respect to novel drug discoveries and other breakthroughs in therapeutics.
Collapse
Affiliation(s)
- Krishna Sundar Twayana
- Apoptosis and Cell Survival Research Laboratory, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu-632014, India
| | - Palaniyandi Ravanan
- Apoptosis and Cell Survival Research Laboratory, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu-632014, India.
| |
Collapse
|
168
|
Song Y, Asselman J, De Schamphelaere KAC, Salbu B, Tollefsen KE. Deciphering the Combined Effects of Environmental Stressors on Gene Transcription: A Conceptual Approach. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:5479-5489. [PMID: 29641900 DOI: 10.1021/acs.est.8b00749] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The use of classical mixture toxicity models to predict the combined effects of environmental stressors based on toxicogenomics (OMICS) data is still in its infancy. Although several studies have made attempts to implement mixture modeling in OMICS analysis to understand the low-dose interactions of stressors, it is not clear how interactions occur at the molecular level and how results generated from such approaches can be better used to inform future studies and cumulative hazard assessment of multiple stressors. The present work was therefore conducted to propose a conceptual approach for combined effect assessment using global gene expression data, as illustrated by a case study on assessment of combined effects of gamma radiation and depleted uranium (DU) on Atlantic salmon ( Salmo salar). Implementation of the independent action (IA) model in reanalysis of a previously published microarray gene expression dataset was performed to describe gene expression patterns of combined effects and identify key gene sets and pathways that were relevant for understanding the interactive effects of these stressors. By using this approach, 3120 differentially expressed genes (DEGs) were found to display additive effects, whereas 279 (273 synergistic, 6 antagonistic) were found to deviate from additivity. Functional analysis further revealed that multiple toxicity pathways, such as oxidative stress responses, cell cycle regulation, lipid metabolism, and immune responses were enriched by DEGs showing synergistic gene expression. A key toxicity pathway of DNA damage leading to enhanced tumorigenesis signaling is highlighted and discussed in detail as an example of how to take advantage of the approach. Furthermore, a conceptual workflow describing the integration of combined effect modeling, OMICS analysis, and bioinformatics is proposed. The present study presents a conceptual framework for utilizing OMICS data in combined effect assessment and may provide novel strategies for dealing with data analysis and interpretation of molecular responses of multiple stressors.
Collapse
Affiliation(s)
- You Song
- Section of Ecotoxicology and Risk Assessment , Norwegian Institute for Water Research (NIVA) , Gaustadalléen 21 , N-0349 Oslo , Norway
- Centre for Environmental Radioactivity (CERAD) , Norwegian University of Life Sciences (NMBU) , P.O. Box 5003, N-1432 Ås , Norway
| | - Jana Asselman
- Faculty of Bioscience Engineering, Laboratory of Environmental Toxicology and Aquatic Ecology (GhEnToxLab) , Ghent University , Campus Coupure Building F, Second Floor, Coupure Links 653 , B9000 Ghent , Belgium
| | - Karel A C De Schamphelaere
- Faculty of Bioscience Engineering, Laboratory of Environmental Toxicology and Aquatic Ecology (GhEnToxLab) , Ghent University , Campus Coupure Building F, Second Floor, Coupure Links 653 , B9000 Ghent , Belgium
| | - Brit Salbu
- Centre for Environmental Radioactivity (CERAD) , Norwegian University of Life Sciences (NMBU) , P.O. Box 5003, N-1432 Ås , Norway
| | - Knut Erik Tollefsen
- Section of Ecotoxicology and Risk Assessment , Norwegian Institute for Water Research (NIVA) , Gaustadalléen 21 , N-0349 Oslo , Norway
- Centre for Environmental Radioactivity (CERAD) , Norwegian University of Life Sciences (NMBU) , P.O. Box 5003, N-1432 Ås , Norway
| |
Collapse
|
169
|
Li FH, Han N, Wang Y, Xu Q. Gadd45a knockdown alleviates oxidative stress through suppressing the p38 MAPK signaling pathway in the pathogenesis of preeclampsia. Placenta 2018; 65:20-28. [DOI: 10.1016/j.placenta.2018.03.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 03/08/2018] [Accepted: 03/27/2018] [Indexed: 12/21/2022]
|
170
|
Cui D, Sajan P, Shi J, Shen Y, Wang K, Deng X, Zhou L, Hu P, Gao L. MiR-148a increases glioma cell migration and invasion by downregulating GADD45A in human gliomas with IDH1 R132H mutations. Oncotarget 2018; 8:25345-25361. [PMID: 28445981 PMCID: PMC5421935 DOI: 10.18632/oncotarget.15867] [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: 08/02/2016] [Accepted: 02/13/2017] [Indexed: 01/09/2023] Open
Abstract
High-grade gliomas are severe tumors with poor prognosis. An R132H mutation in the isocitrate dehydrogenase (IDH1) gene prolongs the life of glioma patients. In this study, we investigated which genes are differentially regulated in IDH1 wild type (IDH1WT) or IDH1 R132H mutation (IDH1R132H) glioblastoma cells. Growth arrest and DNA-damage-inducible protein (GADD45A) was downregulated and microRNA 148a (miR-148a) was upregulated in in IDH1R132H human glioblastomas tissues. The relationship between GADD45A and miR-148a is unknown. In vitro experiments showed that GADD45A negatively regulates IDH1R132H glioma cell proliferation, migration, and invasion, and neurosphere formation in IDH1R132H glioblastoma stem cells (GSC). In addition, a human orthotopic xenograft mouse model showed that GADD45A reduced tumorigenesis in vivo. Our findings demonstrated that miR-148a promotes glioma cell invasion and tumorigenesis by downregulating GADD45A. Our findings provide novel insights into how GADD45A is downregulated by miR-148a in IDH1R132H glioma and may help to identify therapeutic targets for the effective treatment of high-grade glioma.
Collapse
Affiliation(s)
- Daming Cui
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of China
| | - Pandey Sajan
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of China
| | - Jinlong Shi
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Yiwen Shen
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200070, People's Republic of China
| | - Ke Wang
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of China
| | - Xianyu Deng
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of China
| | - Lin Zhou
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of China
| | - Pingping Hu
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of China
| | - Liang Gao
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of China
| |
Collapse
|
171
|
Huang H, Wang Q, Du T, Lin C, Lai Y, Zhu D, Wu W, Ma X, Bai S, Li Z, Liu L, Li Q. Matrine inhibits the progression of prostate cancer by promoting expression of GADD45B. Prostate 2018; 78:327-335. [PMID: 29356020 DOI: 10.1002/pros.23469] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 11/29/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND Matrine is a naturally occurring alkaloid extracted from the Chinese herb Sophora flavescens. It has been demonstrated to exhibit antiproliferative properties, promote apoptosis, and inhibit cell invasion in a number of cancer cell lines by modulating the NF-κB pathway to downregulate the expression of MMP2 and MM9. It has also been shown to improve the efficacy of chemotherapy when it is combined with other chemotherapy drugs. However, the therapeutic potential of matrine for prostate cancer needs to be further studied. METHODS We analyzed KEGG pathways of differential gene expression between matrine-treated and untreated prostate cancer cell lines and identified GADD45B as one of major target genes of matrine based on its role in apoptosis and prognosis value for prostate cancer patients in TCGA database. We further analyzed the expression of GADD45B protein in a tissue microarray and mRNA in TCGA database, and tested the synergistic impacts of matrine and GADD45B overexpression on proliferation, apoptosis, migration and invasion of prostate cancer cell DU145. RESULTS Matrine promoted the expression of GADD45B, a tumor suppressive gene that is involved in the regulation of cell cycle, DNA damage repair, cell survival, aging, apoptosis and other cellular processes through p38/JNK, ROS-GADD45B-p38, or other signal pathways. Although GADD45B is elevated in prostate cancer tissues, levels of GADD45B in prostate tumor tissues are reduced at late stage of tumor invasion, and higher levels of GADD45B predict better survivals of prostate cancer patients. CONCLUSIONS Matrine may be used to treat prostate cancer patients to increase the levels of GADD45B to inhibit tumor invasion and improve patient survivals.
Collapse
Affiliation(s)
- Hai Huang
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Center for Translational Cancer Research, Texas A&M Institute of Biosciences and Technology, Texas A&M University, Houston, Texas
| | - Qiong Wang
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Tao Du
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Obstetrics and Gynecology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chunhao Lin
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yiming Lai
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Dingjun Zhu
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Wanhua Wu
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiaoming Ma
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Soumin Bai
- Department of Radiation Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zean Li
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Leyuan Liu
- Center for Translational Cancer Research, Texas A&M Institute of Biosciences and Technology, Texas A&M University, Houston, Texas
- Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University, College Station, Texas
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qi Li
- Department of Clinical Laboratory, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| |
Collapse
|
172
|
Bandara G, Muñoz-Cano R, Tobío A, Yin Y, Komarow HD, Desai A, Metcalfe DD, Olivera A. Targeting Sphingosine Kinase Isoforms Effectively Reduces Growth and Survival of Neoplastic Mast Cells With D816V-KIT. Front Immunol 2018; 9:631. [PMID: 29643855 PMCID: PMC5883065 DOI: 10.3389/fimmu.2018.00631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 03/13/2018] [Indexed: 01/02/2023] Open
Abstract
Mastocytosis is a disorder resulting from an abnormal mast cell (MC) accumulation in tissues that is often associated with the D816V mutation in KIT, the tyrosine kinase receptor for stem cell factor. Therapies available to treat aggressive presentations of mastocytosis are limited, thus exploration of novel pharmacological targets that reduce MC burden is desirable. Since increased generation of the lipid mediator sphingosine-1-phosphate (S1P) by sphingosine kinase (SPHK) has been linked to oncogenesis, we studied the involvement of the two SPHK isoforms (SPHK1 and SPHK2) in the regulation of neoplastic human MC growth. While SPHK2 inhibition prevented entry into the cell cycle in normal and neoplastic human MCs with minimal effect on cell survival, SPHK1 inhibition caused cell cycle arrest in G2/M and apoptosis, particularly in D816V-KIT MCs. This was mediated via activation of the DNA damage response (DDR) cascade, including phosphorylation of the checkpoint kinase 2 (CHK2), CHK2-mediated M-phase inducer phosphatase 3 depletion, and p53 activation. Combination treatment of SPHK inhibitors with KIT inhibitors showed greater growth inhibition of D816V-KIT MCs than either inhibitor alone. Furthermore, inhibition of SPHK isoforms reduced the number of malignant bone marrow MCs from patients with mastocytosis and the growth of D816V-KIT MCs in a xenograft mouse model. Our results reveal a role for SPHK isoforms in the regulation of growth and survival in normal and neoplastic MCs and suggest a regulatory function for SPHK1 in the DDR in MCs with KIT mutations. The findings also suggest that targeting the SPHK/S1P axis may provide an alternative to tyrosine kinase inhibitors, alone or in combination, for the treatment of aggressive mastocytosis and other hematological malignancies associated with the D816V-KIT mutation.
Collapse
Affiliation(s)
- Geethani Bandara
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Rosa Muñoz-Cano
- Allergy Section, Pneumology Department, Hospital Clinic, ARADyAL, Instituto de Salud Carlos III, Barcelona, Spain
| | - Araceli Tobío
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Yuzhi Yin
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Hirsh D Komarow
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Avanti Desai
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Dean D Metcalfe
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Ana Olivera
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| |
Collapse
|
173
|
Liu J, Jiang G, Mao P, Zhang J, Zhang L, Liu L, Wang J, Owusu L, Ren B, Tang Y, Li W. Down-regulation of GADD45A enhances chemosensitivity in melanoma. Sci Rep 2018; 8:4111. [PMID: 29515153 PMCID: PMC5841426 DOI: 10.1038/s41598-018-22484-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 02/15/2018] [Indexed: 11/08/2022] Open
Abstract
Melanoma is a malignant skin cancer with considerable drug resistance. Increased expression of DNA repair genes have been reported in melanoma, and this contributes to chemotherapy resistance. GADD45A is involved in DNA repair, cell cycle arrest and apoptosis in response to physiologic or environmental stresses. In this study, we investigated the role of GADD45A in chemotherapy response. Firstly, the mRNA expression of profiled DNA repair genes in cisplatin-treated melanoma cells was detected by RT2 profilerTM PCR array. We found the expression of GADD45A upregulated in a dose- and time- dependent manner. In addition, suppression of GADD45A sensitized melanoma cells to cisplatin and enhanced cisplatin-induced DNA damage. Flow cytometry revealed that downregulating GADD45A released cells from cisplatin-induced G2/M arrest and increased apoptosis. By using a MEK inhibitor, GADD45A was shown to be regulated by MAPK-ERK pathway following cisplatin treatment. Thus, the induction of GADD45A might play important roles in chemotherapy response in human melanoma cancer and could serve as a novel molecular target for melanoma therapy.
Collapse
Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Ping Mao
- Department of General Surgery, The people's Hospital of Liaoning Province, Shenyang, 110016, Liaoning, China
| | - Jing Zhang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Jia Wang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Lawrence Owusu
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Baoyin Ren
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Yawei Tang
- Department of Immunology, Dalian Medical University, Dalian, 116044, China
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China.
| |
Collapse
|
174
|
Transcriptional response to organic compounds from diverse gasoline and biogasoline fuel emissions in human lung cells. Toxicol In Vitro 2018; 48:329-341. [PMID: 29432896 DOI: 10.1016/j.tiv.2018.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/30/2018] [Accepted: 02/05/2018] [Indexed: 01/15/2023]
Abstract
Modern vehicles equipped with Gasoline Direct Injection (GDI) engine have emerged as an important source of particulate emissions potentially harmful to human health. We collected and characterized gasoline exhaust particles (GEPs) produced by neat gasoline fuel (E0) and its blends with 15% ethanol (E15), 25% n-butanol (n-But25) and 25% isobutanol (i-But25). To study the toxic effects of organic compounds extracted from GEPs, we analyzed gene expression profiles in human lung BEAS-2B cells. Despite the lowest GEP mass, n-But25 extract contained the highest concentration of polycyclic aromatic hydrocarbons (PAHs), while i-But25 extract the lowest. Gene expression analysis identified activation of the DNA damage response and other subsequent events (cell cycle arrest, modulation of extracellular matrix, cell adhesion, inhibition of cholesterol biosynthesis) following 4 h exposure to all GEP extracts. The i-But25 extract induced the most distinctive gene expression pattern particularly after 24 h exposure. Whereas E0, E15 and n-But25 extract treatments resulted in persistent stress signaling including DNA damage response, MAPK signaling, oxidative stress, metabolism of PAHs or pro-inflammatory response, i-But25 induced changes related to the metabolism of the cellular nutrients required for cell recovery. Our results indicate that i-But25 extract possessed the weakest genotoxic potency possibly due to the low PAH content.
Collapse
|
175
|
The Fanconi anemia pathway controls oncogenic response in hematopoietic stem and progenitor cells by regulating PRMT5-mediated p53 arginine methylation. Oncotarget 2018; 7:60005-60020. [PMID: 27507053 PMCID: PMC5312365 DOI: 10.18632/oncotarget.11088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 07/26/2016] [Indexed: 01/26/2023] Open
Abstract
The Fanconi anemia (FA) pathway is involved in DNA damage and other cellular stress responses. We have investigated the role of the FA pathway in oncogenic stress response by employing an in vivo stress-response model expressing the Gadd45β-luciferase transgene. Using two inducible models of oncogenic activation (LSL-K-rasG12D and MycER), we show that hematopoietic stem and progenitor cells (HSPCs) from mice deficient for the FA core complex components Fanca or Fancc exhibit aberrant short-lived response to oncogenic insults. Mechanistic studies reveal that FA deficiency in HSPCs impairs oncogenic stress-induced G1 cell-cycle checkpoint, resulting from a compromised K-rasG12D-induced arginine methylation of p53 mediated by the protein arginine methyltransferase 5 (PRMT5). Furthermore, forced expression of PRMT5 in HSPCs from LSL-K-rasG12D/CreER-Fanca−/− mice prolongs oncogenic response and delays leukemia development in recipient mice. Our study defines an arginine methylation-dependent FA-p53 interplay that controls oncogenic stress response.
Collapse
|
176
|
Yuan G, Chen X, Liu Z, Wei W, Shu Q, Abou-Hamdan H, Jiang L, Li X, Chen R, Désaubry L, Zhou F, Xie D. Flavagline analog FL3 induces cell cycle arrest in urothelial carcinoma cell of the bladder by inhibiting the Akt/PHB interaction to activate the GADD45α pathway. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:21. [PMID: 29415747 PMCID: PMC5804081 DOI: 10.1186/s13046-018-0695-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/31/2018] [Indexed: 12/20/2022]
Abstract
Background Prohibitin 1 (PHB) is a potential target for the treatment of urothelial carcinoma of the bladder (UCB). FL3 is a newly synthesized agent that inhibits cancer cell proliferation by targeting the PHB protein; however, the effect of FL3 in UCB cells remains unexplored. Methods FL3 was identified to be a potent inhibitor of UCB cell viability using CCK-8 (cell counting kit-8) assay. Then a series of in vitro and in vivo experiments were conducted to further demonstrate the inhibitory effect of FL3 on UCB cell proliferation and to determine the underlying mechanisms. Results FL3 inhibited UCB cell proliferation and growth both in vitro and in vivo. By targeting the PHB protein, FL3 inhibited the interaction of Akt and PHB as well as Akt-mediated PHB phosphorylation, which consequently decreases the localization of PHB in the mitochondria. In addition, FL3 treatment resulted in cell cycle arrest in the G2/M phase, and this inhibitory effect of FL3 could be mimicked by knockdown of PHB. Through the microarray analysis of mRNA expression after FL3 treatment and knockdown of PHB, we found that the mRNA expression of the growth arrest and DNA damage-inducible alpha (GADD45α) gene were significantly upregulated. When knocked down the expression of GADD45α, the inhibitory effect of FL3 on cell cycle was rescued, suggesting that FL3-induced cell cycle inhibition is GADD45α dependent. Conclusion Our data provide that FL3 inhibits the interaction of Akt and PHB, which in turn activates the GADD45α-dependent cell cycle inhibition in the G2/M phase. Electronic supplementary material The online version of this article (10.1186/s13046-018-0695-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Gangjun Yuan
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xin Chen
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhuowei Liu
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wensu Wei
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Qinghai Shu
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Hussein Abou-Hamdan
- Therapeutic Innovation Laboratory, UMR7200, CNRS/University of Strasbourg, Strasbourg, France
| | - Lijuan Jiang
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Xiangdong Li
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Rixin Chen
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Laurent Désaubry
- Therapeutic Innovation Laboratory, UMR7200, CNRS/University of Strasbourg, Strasbourg, France. .,Sino-French Joint Lab of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China.
| | - Fangjian Zhou
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China. .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China.
| | - Dan Xie
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
| |
Collapse
|
177
|
Zhou L, Wang W, Yang C, Zeng T, Hu M, Wang X, Li N, Sun K, Wang C, Zhou J, Ren M, Yan L. GADD45a Promotes Active DNA Demethylation of the MMP-9 Promoter via Base Excision Repair Pathway in AGEs-Treated Keratinocytes and in Diabetic Male Rat Skin. Endocrinology 2018; 159:1172-1186. [PMID: 29244109 DOI: 10.1210/en.2017-00686] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 12/07/2017] [Indexed: 11/19/2022]
Abstract
Diabetes elevates matrix metalloproteinase (MMP)-9 levels in the skin and its keratinocytes, and activated MMP-9 impairs skin wound healing. Epigenetic regulation of the DNA methylation status within the MMP-9 promoter plays an important role in the alteration of MMP-9 expression. Our aim was to investigate the role and mechanism of growth arrest and DNA damage-inducible 45a (GADD45a), a well-known DNA demethylation regulatory protein that mediates DNA methylation, in the regulation of MMP-9 expression. In this study, we showed that GADD45a was markedly upregulated in skin tissues from patients with diabetic foot ulcers, in diabetic rats, and in human keratinocyte (HaCaT) cells exposed to advanced glycation end products. We observed a substantial positive correlation between the levels of GADD45a and MMP-9 expression. Knockdown of GADD45a ameliorated the increase in MMP-9 transcription induced by a diabetic condition by inhibiting demethylation in the MMP-9 promoter and promoted diabetic HaCaT cell migration, but GADD45a knockdown did not affect HaCaT cell proliferation or apoptosis. Additionally, we demonstrated that overexpression of GADD45a activated MMP-9 expression by inducing promoter demethylation. Moreover, we found that GADD45a binds to the promoter of MMP-9 and recruits thymine-DNA glycosylase for base excision repair-mediated demethylation in diabetic HaCaT cells and diabetic rat skin. Our results reveal a mechanism in which GADD45a is required for demethylation of the MMP-9 promoter and the induction of diabetic wound healing. The inhibition of GADD45a might be a therapeutic strategy for diabetic foot ulcers.
Collapse
MESH Headings
- Animals
- Cell Cycle Proteins/physiology
- Cells, Cultured
- DNA Demethylation
- DNA Repair/genetics
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetic Foot/genetics
- Diabetic Foot/metabolism
- Diabetic Foot/pathology
- Epigenesis, Genetic
- Gene Expression Regulation, Enzymologic
- Glycation End Products, Advanced/metabolism
- Glycation End Products, Advanced/pharmacology
- Humans
- Keratinocytes/drug effects
- Keratinocytes/metabolism
- Keratinocytes/pathology
- Male
- Matrix Metalloproteinase 9/genetics
- Matrix Metalloproteinase 9/metabolism
- Nuclear Proteins/physiology
- Promoter Regions, Genetic
- Rats
- Rats, Sprague-Dawley
- Skin/drug effects
- Skin/metabolism
- Skin/pathology
- Wound Healing/genetics
Collapse
Affiliation(s)
- Liyan Zhou
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei Wang
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chuan Yang
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tingting Zeng
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mengdie Hu
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyi Wang
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Na Li
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kan Sun
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chuan Wang
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing Zhou
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Meng Ren
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Li Yan
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
178
|
Jia M, Zhu M, Wang M, Sun M, Qian J, Ding F, Chang J, Wei Q. Genetic variants of GADD45A, GADD45B and MAPK14 predict platinum-based chemotherapy-induced toxicities in Chinese patients with non-small cell lung cancer. Oncotarget 2018; 7:25291-303. [PMID: 26993769 PMCID: PMC5041904 DOI: 10.18632/oncotarget.8052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 02/29/2016] [Indexed: 12/23/2022] Open
Abstract
The JNK and P38α pathways play a crucial role in tissue homeostasis, apoptosis and autophagy under genotoxic stresses, but it is unclear whether single nucleotide polymorphisms (SNPs) of genes in these pathways play a role in platinum-based chemotherapy-induced toxicities in patients with advanced non-small cell lung cancer (NSCLC). We genotyped 11 selected, independent, potentially functional SNPs of nine genes in the JNK and P38α pathways in 689 patients with advanced NSCLC treated with platinum-combination chemotherapy regimens. Associations between these SNPs and chemotherapy toxicities were tested in a discovery group of 345 patients and then validated in a replication group of 344 patients. In both discovery and validation groups as well as their pooled analysis, carriers of GADD45B rs2024144T variant allele had a significantly higher risk for severe hematologic toxicity and carriers of MAPK14 rs3804451A variant allele had a significantly higher risk for both overall toxicity and gastrointestinal toxicity. In addition, carriers of GADD45A rs581000C had a lower risk of anemia, while carriers of GADD45B rs2024144T had a significantly higher risk for leukocytopenia or agranulocytosis. The present study provides evidence that genetic variants in genes involved in the JNK and P38α pathways may predict platinum-based chemotherapy toxicity outcomes in patients with advanced NSCLC. Larger studies of other patient populations are needed to validate our findings.
Collapse
Affiliation(s)
- Ming Jia
- Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Meiling Zhu
- Department of Oncology, Xinhua Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai, 200092, China
| | - Mengyun Wang
- Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Menghong Sun
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Ji Qian
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences and Fudan Taizhou Institute of Health Sciences, Fudan University, Shanghai, 200032, China
| | - Fei Ding
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Jianhua Chang
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Qingyi Wei
- Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.,Department of Medicine, Duke Cancer Institute, Duke University Medical Center, Duke University School of Medicine, Durham, North Carolina, 27710, USA
| |
Collapse
|
179
|
Motyl J, Wencel PL, Cieślik M, Strosznajder RP, Strosznajder JB. Alpha-synuclein alters differently gene expression of Sirts, PARPs and other stress response proteins: implications for neurodegenerative disorders. Mol Neurobiol 2018; 55:727-740. [PMID: 28050792 PMCID: PMC5808059 DOI: 10.1007/s12035-016-0317-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 11/21/2016] [Indexed: 02/06/2023]
Abstract
Alpha-synuclein (ASN) is a presynaptic protein that can easily change its conformation under different types of stress. It's assumed that ASN plays an important role in the pathogenesis of Parkinson's and Alzheimer's disease. However, the molecular mechanism of ASN toxicity has not been elucidated. This study focused on the role of extracellular ASN (eASN) in regulation of transcription of sirtuins (Sirts) and DNA-bound poly(ADP-ribose) polymerases (PARPs) - proteins crucial for cells' survival/death. Our results indicate that eASN enhanced the free radicals level, decreased mitochondria membrane potential, cells viability and activated cells' death. Concomitantly eASN activated expression of antioxidative proteins (Sod2, Gpx4, Gadd45b) and DNA-bound Parp2 and Parp3. Moreover, eASN upregulated expression of Sirt3 and Sirt5, but downregulated of Sirt1, which plays an important role in cell metabolism including Aβ precursor protein (APP) processing. eASN downregulated gene expression of APP alpha secretase (Adam10) and metalloproteinases Mmp2, Mmp10 but upregulated Mmp11. Additionally, expression and activity of pro-survival sphingosine kinase 1 (Sphk1), Akt kinase and anti-apoptotic protein Bcl2 were inhibited. Moreover, higher expression of pro-apoptotic protein Bax and enhancement of apoptotic cells' death were observed. Summarizing, eASN significantly modulates transcription of Sirts and enzymes involved in APP/Aβ metabolism and through these mechanisms eASN toxicity may be enhanced. The inhibition of Sphk1 and Akt by eASN may lead to disturbances of survival pathways. These results suggest that eASN through alteration of transcription and by inhibition of pro-survival kinases may play important pathogenic role in neurodegenerative disorders.
Collapse
Affiliation(s)
- J Motyl
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego Street, Warsaw, Poland
| | - P L Wencel
- Laboratory of Preclinical Research and Environmental Agents, Department of Neurosurgery, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego Street, 02-106, Warsaw, Poland
| | - M Cieślik
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego Street, Warsaw, Poland
| | - R P Strosznajder
- Laboratory of Preclinical Research and Environmental Agents, Department of Neurosurgery, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego Street, 02-106, Warsaw, Poland.
| | - J B Strosznajder
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego Street, Warsaw, Poland
| |
Collapse
|
180
|
Zhai C, Qian Q, Tang G, Han B, Hu H, Yin D, Pan H, Zhang S. MicroRNA-206 Protects against Myocardial Ischaemia-Reperfusion Injury in Rats by Targeting Gadd45β. Mol Cells 2017; 40:916-924. [PMID: 29237256 PMCID: PMC5750710 DOI: 10.14348/molcells.2017.0164] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/23/2017] [Accepted: 10/26/2017] [Indexed: 01/17/2023] Open
Abstract
MicroRNAs are widely involved in the pathogenesis of cardiovascular diseases through regulating gene expression via translational inhibition or degradation of their target mRNAs. Recent studies have indicated a critical role of microRNA-206 in myocardial ischaemia-reperfusion (I/R) injury. However, the function of miR-206 in myocardial I/R injury is currently unclear. The present study was aimed to identify the specific role of miR-206 in myocardial I/R injury and explore the underlying molecular mechanism. Our results revealed that the expression level of miR-206 was significantly decreased both in rat I/R group and H9c2 cells subjected to hypoxia/reoxygenation (H/R) compared with the corresponding control. Overexpression of miR-206 observably decreased infarct size and inhibited the cardiomyocyte apoptosis induced by I/R injury. Furthermore, bioinformatics analysis, luciferase activity and western blot assay proved that Gadd45β (growth arrest DNA damage-inducible gene 45β) was a direct target gene of miR-206. In addition, the expression of pro-apoptotic-related genes, such as p53, Bax and cleaved caspase3, was decreased in association with the down-regulation of Gadd45β. In summary, this study demonstrates that miR-206 could protect against myocardial I/R injury by targeting Gadd45β.
Collapse
Affiliation(s)
- Changlin Zhai
- Department of Cardiovascular Diseases, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665# Kongjiang Road, Yangpu district, Shanghai 200092,
P.R. China
- Department of Cardiovascular Diseases, The Frist Affiliated Hospital of Jiaxing University, Jiaxing 314000,
P.R China
| | - Qang Qian
- Department of Cardiovascular Diseases, The Frist Affiliated Hospital of Jiaxing University, Jiaxing 314000,
P.R China
| | - Guanmin Tang
- Department of Cardiovascular Diseases, The Frist Affiliated Hospital of Jiaxing University, Jiaxing 314000,
P.R China
| | - Bingjiang Han
- Department of Cardiovascular Diseases, The Frist Affiliated Hospital of Jiaxing University, Jiaxing 314000,
P.R China
| | - Huilin Hu
- Department of Cardiovascular Diseases, The Frist Affiliated Hospital of Jiaxing University, Jiaxing 314000,
P.R China
| | - Dong Yin
- Department of Cardiovascular Diseases, The Frist Affiliated Hospital of Jiaxing University, Jiaxing 314000,
P.R China
| | - Haihua Pan
- Department of Cardiovascular Diseases, The Frist Affiliated Hospital of Jiaxing University, Jiaxing 314000,
P.R China
| | - Song Zhang
- Department of Cardiovascular Diseases, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665# Kongjiang Road, Yangpu district, Shanghai 200092,
P.R. China
| |
Collapse
|
181
|
Zhang B, Lai Y, Li Y, Shu N, Wang Z, Wang Y, Li Y, Chen Z. Antineoplastic activity of isoliquiritigenin, a chalcone compound, in androgen-independent human prostate cancer cells linked to G2/M cell cycle arrest and cell apoptosis. Eur J Pharmacol 2017; 821:57-67. [PMID: 29277717 DOI: 10.1016/j.ejphar.2017.12.053] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 01/19/2023]
Abstract
Isoliquiritigenin is a natural chalcone derived from Glycyrrhiza, which has been reported to have anti-tumor activity in recent years. Here, we investigate the anticancer efficacy and associated mechanisms of isoliquiritigenin in human prostate cancer PC-3 and 22RV1 cells. Isoliquiritigenin (25-50μM) inhibited cell proliferation, induced cell apoptosis, and caused G2/M cell cycle arrest in vitro. This agent also repressed the growth of PC-3 xenograft tumors in vivo with the results of hematoxylin/eosin staining and immunohistochemistry staining showing differences between isoliquiritigenin-treated groups and control group. Next, we used microarray transcriptional profiling to identify isoliquiritigenin-regulated genes on PC-3 prostate cancer cells. Multiple genes involved in cell cycle, DNA damage, and apoptosis signaling pathways were changed remarkably with the treatment of isoliquiritigenin. Molecular studies revealed that G2/M arrest was associated with a decrease in cyclin B1, cyclin-dependent kinase 1 (CDK1), and phosphorylated CDK1 (Thr14, Tyr15, and Thr161), whereas the expression of 14-3-3σ and growth arrest and DNA damage-inducible 45 alpha (GADD45A) was increased. The complexes of cyclin B1-CDK1 were also examined to show a decrease in the binding of CDK1 with cyclin B1. In addition, treatment with relatively high concentrations of isoliquiritigenin induced apoptosis, mainly associated with enhancing apoptosis regulator (Bax/Bcl-2) ratio. Collectively, these findings indicate that isoliquiritigenin modulates cyclin B1-CDK1 for G2/M arrest, together with an alteration of cell cycle regulators and apoptotic factors in human prostate cancer cells. However, we observed pleiotropic effects for isoliquiritigenin in microarray results, suggesting that other biological mechanisms also contribute to its efficacy, which could be of interest for future investigations.
Collapse
Affiliation(s)
- Biyan Zhang
- School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Yun Lai
- School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Yufeng Li
- School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Nan Shu
- School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Zheng Wang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Yanping Wang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Yunsen Li
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China.
| | - Zijun Chen
- School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
| |
Collapse
|
182
|
Driver pattern identification over the gene co-expression of drug response in ovarian cancer by integrating high throughput genomics data. Sci Rep 2017. [PMID: 29170526 DOI: 10.1038/s41598-017-16286-5]+[] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Multiple types of high throughput genomics data create a potential opportunity to identify driver patterns in ovarian cancer, which will acquire some novel and clinical biomarkers for appropriate diagnosis and treatment to cancer patients. To identify candidate driver genes and the corresponding driving patterns for resistant and sensitive tumors from the heterogeneous data, we combined gene co-expression modules with mutation modulators and proposed the method to identify driver patterns. Firstly, co-expression network analysis is applied to explore gene modules for gene expression profiles through weighted correlation network analysis (WGCNA). Secondly, mutation matrix is generated by integrating the CNV data and somatic mutation data, and a mutation network is constructed from the mutation matrix. Thirdly, candidate modulators are selected from significant genes by clustering vertexs of the mutation network. Finally, a regression tree model is utilized for module network learning, in which the obtained gene modules and candidate modulators are trained for the driving pattern identification and modulators regulatory exploration. Many identified candidate modulators are known to be involved in biological meaningful processes associated with ovarian cancer, such as CCL11, CCL16, CCL18, CCL23, CCL8, CCL5, APOB, BRCA1, SLC18A1, FGF22, GADD45B, GNA15, GNA11, and so on.
Collapse
|
183
|
Lu X, Lu J, Liao B, Li X, Qian X, Li K. Driver pattern identification over the gene co-expression of drug response in ovarian cancer by integrating high throughput genomics data. Sci Rep 2017. [PMID: 29170526 DOI: 10.1038/s41598-017-16286-5] [] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Multiple types of high throughput genomics data create a potential opportunity to identify driver patterns in ovarian cancer, which will acquire some novel and clinical biomarkers for appropriate diagnosis and treatment to cancer patients. To identify candidate driver genes and the corresponding driving patterns for resistant and sensitive tumors from the heterogeneous data, we combined gene co-expression modules with mutation modulators and proposed the method to identify driver patterns. Firstly, co-expression network analysis is applied to explore gene modules for gene expression profiles through weighted correlation network analysis (WGCNA). Secondly, mutation matrix is generated by integrating the CNV data and somatic mutation data, and a mutation network is constructed from the mutation matrix. Thirdly, candidate modulators are selected from significant genes by clustering vertexs of the mutation network. Finally, a regression tree model is utilized for module network learning, in which the obtained gene modules and candidate modulators are trained for the driving pattern identification and modulators regulatory exploration. Many identified candidate modulators are known to be involved in biological meaningful processes associated with ovarian cancer, such as CCL11, CCL16, CCL18, CCL23, CCL8, CCL5, APOB, BRCA1, SLC18A1, FGF22, GADD45B, GNA15, GNA11, and so on.
Collapse
Affiliation(s)
- Xinguo Lu
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China.
| | - Jibo Lu
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
| | - Bo Liao
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
| | - Xing Li
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
| | - Xin Qian
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
| | - Keqin Li
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China.,Department of Computer Science, State University of New York, New Paltz, NY, 12561, USA
| |
Collapse
|
184
|
Lu X, Lu J, Liao B, Li X, Qian X, Li K. Driver pattern identification over the gene co-expression of drug response in ovarian cancer by integrating high throughput genomics data. Sci Rep 2017; 7:16188. [PMID: 29170526 PMCID: PMC5700962 DOI: 10.1038/s41598-017-16286-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 11/09/2017] [Indexed: 01/08/2023] Open
Abstract
Multiple types of high throughput genomics data create a potential opportunity to identify driver patterns in ovarian cancer, which will acquire some novel and clinical biomarkers for appropriate diagnosis and treatment to cancer patients. To identify candidate driver genes and the corresponding driving patterns for resistant and sensitive tumors from the heterogeneous data, we combined gene co-expression modules with mutation modulators and proposed the method to identify driver patterns. Firstly, co-expression network analysis is applied to explore gene modules for gene expression profiles through weighted correlation network analysis (WGCNA). Secondly, mutation matrix is generated by integrating the CNV data and somatic mutation data, and a mutation network is constructed from the mutation matrix. Thirdly, candidate modulators are selected from significant genes by clustering vertexs of the mutation network. Finally, a regression tree model is utilized for module network learning, in which the obtained gene modules and candidate modulators are trained for the driving pattern identification and modulators regulatory exploration. Many identified candidate modulators are known to be involved in biological meaningful processes associated with ovarian cancer, such as CCL11, CCL16, CCL18, CCL23, CCL8, CCL5, APOB, BRCA1, SLC18A1, FGF22, GADD45B, GNA15, GNA11, and so on.
Collapse
Affiliation(s)
- Xinguo Lu
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China.
| | - Jibo Lu
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
| | - Bo Liao
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
| | - Xing Li
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
| | - Xin Qian
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
| | - Keqin Li
- College of Computer Science and Electronic Engineering, Hunan University, Lushan Nan Rd., Changsha, 410082, China
- Department of Computer Science, State University of New York, New Paltz, NY, 12561, USA
| |
Collapse
|
185
|
Oladimeji PO, Chen T. PXR: More Than Just a Master Xenobiotic Receptor. Mol Pharmacol 2017; 93:119-127. [PMID: 29113993 DOI: 10.1124/mol.117.110155] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 11/03/2017] [Indexed: 12/16/2022] Open
Abstract
Pregnane X receptor (PXR) is a nuclear receptor considered to be a master xenobiotic receptor that coordinately regulates the expression of genes encoding drug-metabolizing enzymes and drug transporters to essentially detoxify and eliminate xenobiotics and endotoxins from the body. In the past several years, the function of PXR in the regulation of xenobiotic metabolism has been extensively studied, and the role of PXR as a xenobiotic sensor has been well established. It is now clear, however, that PXR plays many other roles in addition to its xenobiotic-sensing function. For instance, recent studies have discovered previously unidentified roles of PXR in inflammatory response, cell proliferation, and cell migration. PXR also contributes to the dysregulation of these processes in diseases states. These recent discoveries of the role of PXR in the physiologic and pathophysiologic conditions of other cellular processes provides the possibility of novel targets for drug discovery. This review highlights areas of PXR regulation that require further clarification and summarizes the recent progress in our understanding of the nonxenobiotic functions of PXR that can be explored for relevant therapeutic applications.
Collapse
Affiliation(s)
- Peter O Oladimeji
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Taosheng Chen
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, Tennessee
| |
Collapse
|
186
|
Menzel F, Kaiser N, Haehnel S, Rapp F, Patties I, Schöneberg N, Haimon Z, Immig K, Bechmann I. Impact of X-irradiation on microglia. Glia 2017; 66:15-33. [DOI: 10.1002/glia.23239] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 09/05/2017] [Accepted: 09/18/2017] [Indexed: 12/20/2022]
Affiliation(s)
| | - Nicole Kaiser
- Institute of Anatomy, Leipzig University; Leipzig Germany
| | - Susann Haehnel
- Institute of Anatomy, Leipzig University; Leipzig Germany
| | - Felicitas Rapp
- Institute of Anatomy, Leipzig University; Leipzig Germany
| | - Ina Patties
- Department of Radiation Therapy; Leipzig University; Leipzig Germany
| | | | - Zhana Haimon
- Department of Immunology; Weizmann Institute of Science; Rehovot Israel
| | - Kerstin Immig
- Institute of Anatomy, Leipzig University; Leipzig Germany
| | - Ingo Bechmann
- Institute of Anatomy, Leipzig University; Leipzig Germany
| |
Collapse
|
187
|
Yuan XL, Zhang P, Liu XM, Du YM, Hou XD, Cheng S, Zhang ZF. Cytological Assessments and Transcriptome Profiling Demonstrate that Evodiamine Inhibits Growth and Induces Apoptosis in a Renal Carcinoma Cell Line. Sci Rep 2017; 7:12572. [PMID: 28974748 PMCID: PMC5626725 DOI: 10.1038/s41598-017-12918-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 09/11/2017] [Indexed: 12/20/2022] Open
Abstract
Chinese medicines are an important source of secondary metabolites with excellent antitumour activity. Evodia rutaecarpa, from the family Rutaceae, exhibits antitumour activity. Evodiamine (EVO), which was isolated from the fruit of E. rutaecarpa, exhibits robust antitumour activity. However, the antitumour mechanism of EVO remains unclear. In this study, we assessed the growth-inhibiting effect of EVO on two renal carcinoma cell lines. We found that EVO could change the morphology and decrease the viability and proliferation of cells in a time- and concentration-dependent manner in vitro. In addition, transcriptome analysis indicated that EVO can modulate the transcriptome of Caki-1 cells. In total, 7,243 differentially expressed genes were found, among which 3,347 downregulated genes and 3,896 upregulated genes were mainly involved in cell migration, apoptosis, cell cycle, and DNA replication. Furthermore, we demonstrated that EVO can cause apoptosis, arrest cells in the G2/M phase, and regulate the expression of apoptosis- and cell cycle-related genes in Caki-1 cells. Our study reveals the anticancer effects of EVO using cellular and molecular data, and indicates the potential uses of this compound as a resource to characterize the antitumour mechanisms of E. rutaecarpa.
Collapse
Affiliation(s)
- Xiao-Long Yuan
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Peng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xin-Min Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Yong-Mei Du
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xiao-Dong Hou
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Sen Cheng
- Shanghai Tobacco Group Company Limited, Shanghai, China
| | - Zhong-Feng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China.
| |
Collapse
|
188
|
Mandal C, Kim SH, Kang SC, Chai JC, Lee YS, Jung KH, Chai YG. GSK-J4-Mediated Transcriptomic Alterations in Differentiating Embryoid Bodies. Mol Cells 2017; 40:737-751. [PMID: 29047260 PMCID: PMC5682251 DOI: 10.14348/molcells.2017.0069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/20/2017] [Accepted: 08/20/2017] [Indexed: 12/18/2022] Open
Abstract
Histone-modifying enzymes are key players in the field of cellular differentiation. Here, we used GSK-J4 to profile important target genes that are responsible for neural differentiation. Embryoid bodies were treated with retinoic acid (10 μM) to induce neural differentiation in the presence or absence of GSK-J4. To profile GSKJ4-target genes, we performed RNA sequencing for both normal and demethylase-inhibited cells. A total of 47 and 58 genes were up- and down-regulated, respectively, after GSK-J4 exposure at a log2-fold-change cut-off value of 1.2 (p-value < 0.05). Functional annotations of all of the differentially expressed genes revealed that a significant number of genes were associated with the suppression of cellular proliferation, cell cycle progression and induction of cell death. We also identified an enrichment of potent motifs in selected genes that were differentially expressed. Additionally, we listed upstream transcriptional regulators of all of the differentially expressed genes. Our data indicate that GSK-J4 affects cellular biology by inhibiting cellular proliferation through cell cycle suppression and induction of cell death. These findings will expand the current understanding of the biology of histone-modifying enzymes, thereby promoting further investigations to elucidate the underlying mechanisms.
Collapse
Affiliation(s)
- Chanchal Mandal
- Department of Molecular and Life Science, Hanyang University, Ansan 15588,
Korea
| | - Sun Hwa Kim
- Department of Molecular and Life Science, Hanyang University, Ansan 15588,
Korea
| | - Sung Chul Kang
- Department of Molecular and Life Science, Hanyang University, Ansan 15588,
Korea
| | - Jin Choul Chai
- Department of Molecular and Life Science, Hanyang University, Ansan 15588,
Korea
| | - Young Seek Lee
- Department of Molecular and Life Science, Hanyang University, Ansan 15588,
Korea
| | - Kyoung Hwa Jung
- Institute of Natural Science and Technology, Hanyang University, Ansan 15588,
Korea
| | - Young Gyu Chai
- Department of Molecular and Life Science, Hanyang University, Ansan 15588,
Korea
- Department of Bionanotechnology, Hanyang University, Seoul 04763,
Korea
| |
Collapse
|
189
|
Hou W, Yin J, Vogel U, Sun Z, Liang D. 19p13.3-GADD45B common variants and 19q13.3-PPP1R13L and 19q13.3-CD3EAP in lung cancer risk among Chinese. Chem Biol Interact 2017; 277:74-78. [PMID: 28870783 DOI: 10.1016/j.cbi.2017.08.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 08/29/2017] [Accepted: 08/30/2017] [Indexed: 01/29/2023]
Abstract
Lung cancer is the most common cause of cancer-related mortality worldwide. The GADD45 gene family plays important roles in a variety of the responses to cell injury including cell cycle checkpoints, apoptosis, DNA repair and anti-tumor immunity. The 19p13.3-GADD45B encoded protein product is involved in apoptosis and inhibiting tumor growth. To evaluate the association of 19p13.3-GADD45B common variants and lung cancer risk, the present study containing 544 Chinese lung cancer cases and 550 cancer-free controls was conducted. Three htSNPs (haplotype-tagging single nucleotide polymorphism) (rs7354, rs14384, and rs3783501) covering 95% of the common haplotype diversity in 19p13.3-GADD45B and interaction of 19p13.3-GADD45B and 19q13.3-PPP1R13L and 19q13.3-CD3EAP variants and smoking-duration were explored. Genotype and allele frequencies and haplotype distributions of the 19p13.3-GADD45B 3 htSNPs were not associated with lung cancer risk after adjustment for smoking status. 19p13.3-GADD45B rs7354 was associated with lung cancer risk among ≤20 (years) smokers [C/A-A/A versus CC, OR (95% CI) = 3.20 (1.11-9.20), P = 0.025] in a dominant model stratified by smoking duration. MDR (multifactor dimensionality reduction) analyses showed that smoking history as main effect and three-way models (smoking duration, 19p13.3-GADD45B rs3783501, 19q13.3-CD3EAP rs967591) (P = 0.001-0.002) indicated statistically significant association with lung cancer risk. The study identified evidence implicating DNA damage response genes on chromosome 19 in etiology of smoke-exposed lung cancer. In conclusion, our findings demonstrate that 19p13.3-GADD45B rs7354 variant and interaction between 19p13.3-GADD45B rs3783501 and 19q13.3-CD3EAP rs967591 may play a role in association with smoke-exposed lung cancer among Chinese. 19p13.3-GADD45B variants should be further evaluated in large prospective studies with molecular pathological annotations of lung cancer.
Collapse
Affiliation(s)
- Wei Hou
- Key Laboratory of Environment and Population Health of Liaoning Education Ministry (Shenyang Medical College), Shenyang 110034, Liaoning Province, People's Republic of China; Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, People's Republic of China
| | - Jiaoyang Yin
- Key Laboratory of Environment and Population Health of Liaoning Education Ministry (Shenyang Medical College), Shenyang 110034, Liaoning Province, People's Republic of China.
| | - Ulla Vogel
- National Research Centre for the Working Environment, Lerso Parkalle 105, DK-2100 Copenhagen O, Denmark
| | - Zhenxiang Sun
- Key Laboratory of Environment and Population Health of Liaoning Education Ministry (Shenyang Medical College), Shenyang 110034, Liaoning Province, People's Republic of China
| | - Duohong Liang
- Key Laboratory of Environment and Population Health of Liaoning Education Ministry (Shenyang Medical College), Shenyang 110034, Liaoning Province, People's Republic of China
| |
Collapse
|
190
|
Che B, Luo Q, Zhai B, Fan G, Liu Z, Cheng K, Xin L. Cytotoxicity and genotoxicity of nanosilver in stable GADD45α promoter-driven luciferase reporter HepG2 and A549 cells. ENVIRONMENTAL TOXICOLOGY 2017; 32:2203-2211. [PMID: 28568508 DOI: 10.1002/tox.22433] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/25/2017] [Accepted: 04/25/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES The intense commercial application of silver nanoparticles (AgNPs) has been raising concerns about their potential adverse health effects to human. This study aimed to explore the potency of AgNPs to induce GADD45α gene, an important stress sensor, and its relationships with the cytotoxicity and genotoxicity elicited by AgNPs. METHODS Two established HepG2 and A549 cell lines containing the GADD45α promoter-driven luciferase reporter were treated with increasing concentrations of AgNPs for 48 hours. After the treatment, transcriptional activation of GADD45α indicated by luciferase activity, cell viability, cell cycle arrest, and levels of genotoxicity were determined. The uptake and intracellular localization of AgNPs, cellular Ag doses as well as Ag+ release were also detected. RESULTS AgNPs could activate GADD45α gene at the transcriptional level as demonstrated by the dose-dependent increases in luciferase activity in both the reporter cells. The relative luciferase activity was greater than 12× the control level in HepG2-luciferase cells at the highest concentration tested where the cell viability decreased to 17.0% of the control. These results was generally in accordance with the positive responses in cytotoxicity, cell cycle arrest of Sub G1 and G2/M phase, Olive tail moment, micronuclei frequency, and the cellular Ag content. CONCLUSIONS The cytotoxicity and genotoxicity of AgNPs seems to occur mainly via particles uptake and the subsequent liberation of ions inside the cells. And furthermore, the GADD45α promoter-driven luciferase reporter cells, especially the HepG2-luciferase cells, could provide a new and valuable tool for predicting nanomaterials genotoxicity in humans.
Collapse
Affiliation(s)
- Bizhong Che
- School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, Jiangsu, 215123, China
| | - Qiulin Luo
- School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, Jiangsu, 215123, China
| | - Bingzhong Zhai
- School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, Jiangsu, 215123, China
| | - Guoqiang Fan
- Suzhou Industrial Park Centers for Disease Control and Prevention, 58 Suqian Road, Suzhou, Jiangsu, China
| | - Zhiyong Liu
- School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China
| | - Kaiming Cheng
- Suzhou Industrial Park Centers for Disease Control and Prevention, 58 Suqian Road, Suzhou, Jiangsu, China
| | - Lili Xin
- School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, Jiangsu, 215123, China
| |
Collapse
|
191
|
Arcidiacono P, Ragonese F, Stabile A, Pistilli A, Kuligina E, Rende M, Bottoni U, Calvieri S, Crisanti A, Spaccapelo R. Antitumor activity and expression profiles of genes induced by sulforaphane in human melanoma cells. Eur J Nutr 2017; 57:2547-2569. [PMID: 28864908 PMCID: PMC6182666 DOI: 10.1007/s00394-017-1527-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/11/2017] [Indexed: 01/02/2023]
Abstract
Purpose Human melanoma is a highly aggressive incurable cancer due to intrinsic cellular resistance to apoptosis, reprogramming, proliferation and survival during tumour progression. Sulforaphane (SFN), an isothiocyanate found in cruciferous vegetables, plays a role in carcinogenesis in many cancer types. However, the cytotoxic molecular mechanisms and gene expression profiles promoted by SFN in human melanoma remain unknown. Methods Three different cell lines were used: two human melanoma A375 and 501MEL and human epidermal melanocytes (HEMa). Cell viability and proliferation, cell cycle analysis, cell migration and invasion and protein expression and phosphorylation status of Akt and p53 upon SFN treatment were determined. RNA-seq of A375 was performed at different time points after SFN treatment. Results We demonstrated that SFN strongly decreased cell viability and proliferation, induced G2/M cell cycle arrest, promoted apoptosis through the activation of caspases 3, 8, 9 and hampered migration and invasion abilities in the melanoma cell lines. Remarkably, HEMa cells were not affected by SFN treatment. Transcriptomic analysis revealed regulation of genes involved in response to stress, apoptosis/cell death and metabolic processes. SFN upregulated the expression of pro-apoptotic genes, such as p53, BAX, PUMA, FAS and MDM2; promoted cell cycle inhibition and growth arrest by upregulating EGR1, GADD45B, ATF3 and CDKN1A; and simultaneously acted as a potent inhibitor of genotoxicity by launching the stress-inducible protein network (HMOX1, HSPA1A, HSPA6, SOD1). Conclusion Overall, the data show that SFN cytotoxicity in melanoma derives from complex and concurrent mechanisms during carcinogenesis, which makes it a promising cancer prevention agent. Electronic supplementary material The online version of this article (doi:10.1007/s00394-017-1527-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Paola Arcidiacono
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United KingdomDepartment of Experimental Medicine, University of Perugia, Piazza Lucio Severi, 06132, Perugia, Italy.,Dermatology Clinic, Department of Internal Medicine and Medical Specialties, University of Rome, Rome, Italy
| | - Francesco Ragonese
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United KingdomDepartment of Experimental Medicine, University of Perugia, Piazza Lucio Severi, 06132, Perugia, Italy
| | - Anna Stabile
- Department of Surgery and Biomedical Sciences, University of Perugia, 06132, Perugia, Italy
| | - Alessandra Pistilli
- Department of Surgery and Biomedical Sciences, University of Perugia, 06132, Perugia, Italy
| | - Ekaterina Kuligina
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United KingdomDepartment of Experimental Medicine, University of Perugia, Piazza Lucio Severi, 06132, Perugia, Italy.,N.N. Petrov Institute of Oncology, Saint Petersburg, 197758, Russia
| | - Mario Rende
- Department of Surgery and Biomedical Sciences, University of Perugia, 06132, Perugia, Italy
| | - Ugo Bottoni
- Dermatology Clinic, Department of Internal Medicine and Medical Specialties, University of Rome, Rome, Italy.,University Magna Graecia, Catanzaro, Italy
| | - Stefano Calvieri
- Dermatology Clinic, Department of Internal Medicine and Medical Specialties, University of Rome, Rome, Italy
| | - Andrea Crisanti
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Roberta Spaccapelo
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United KingdomDepartment of Experimental Medicine, University of Perugia, Piazza Lucio Severi, 06132, Perugia, Italy.
| |
Collapse
|
192
|
Schwingshackl A, Lopez B, Teng B, Luellen C, Lesage F, Belperio J, Olcese R, Waters CM. Hyperoxia treatment of TREK-1/TREK-2/TRAAK-deficient mice is associated with a reduction in surfactant proteins. Am J Physiol Lung Cell Mol Physiol 2017; 313:L1030-L1046. [PMID: 28839101 DOI: 10.1152/ajplung.00121.2017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 08/15/2017] [Accepted: 08/16/2017] [Indexed: 12/29/2022] Open
Abstract
We previously proposed a role for the two-pore domain potassium (K2P) channel TREK-1 in hyperoxia (HO)-induced lung injury. To determine whether redundancy among the three TREK isoforms (TREK-1, TREK-2, and TRAAK) could protect from HO-induced injury, we now examined the effect of deletion of all three TREK isoforms in a clinically relevant scenario of prolonged HO exposure and mechanical ventilation (MV). We exposed WT and TREK-1/TREK-2/TRAAK-deficient [triple knockout (KO)] mice to either room air, 72-h HO, MV [high and low tidal volume (TV)], or a combination of HO + MV and measured quasistatic lung compliance, bronchoalveolar lavage (BAL) protein concentration, histologic lung injury scores (LIS), cellular apoptosis, and cytokine levels. We determined surfactant gene and protein expression and attempted to prevent HO-induced lung injury by prophylactically administering an exogenous surfactant (Curosurf). HO treatment increased lung injury in triple KO but not WT mice, including an elevated LIS, BAL protein concentration, and markers of apoptosis, decreased lung compliance, and a more proinflammatory cytokine phenotype. MV alone had no effect on lung injury markers. Exposure to HO + MV (low TV) further decreased lung compliance in triple KO but not WT mice, and HO + MV (high TV) was lethal for triple KO mice. In triple KO mice, the HO-induced lung injury was associated with decreased surfactant protein (SP) A and SPC but not SPB and SPD expression. However, these changes could not be explained by alterations in the transcription factors nuclear factor-1 (NF-1), NKX2.1/thyroid transcription factor-1 (TTF-1) or c-jun, or lamellar body levels. Prophylactic Curosurf administration did not improve lung injury scores or compliance in triple KO mice.
Collapse
Affiliation(s)
| | - Benjamin Lopez
- Department of Pediatrics, University of California, Los Angeles, California
| | - Bin Teng
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee; and
| | - Charlean Luellen
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee; and
| | - Florian Lesage
- Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, Laboratory of Excellence "Ion Channel Science and Therapeutics," Valbonne, France
| | - John Belperio
- Department of Pulmonary and Critical Care, University of California, Los Angeles, California
| | - Riccardo Olcese
- Department of Anesthesiology and Perioperative Medicine, University of California, Los Angeles, California
| | - Christopher M Waters
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee; and
| |
Collapse
|
193
|
Begalli F, Bennett J, Capece D, Verzella D, D'Andrea D, Tornatore L, Franzoso G. Unlocking the NF-κB Conundrum: Embracing Complexity to Achieve Specificity. Biomedicines 2017; 5:E50. [PMID: 28829404 PMCID: PMC5618308 DOI: 10.3390/biomedicines5030050] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/04/2017] [Accepted: 08/10/2017] [Indexed: 12/12/2022] Open
Abstract
Transcription factors of the nuclear factor κB (NF-κB) family are central coordinating regulators of the host defence responses to stress, injury and infection. Aberrant NF-κB activation also contributes to the pathogenesis of some of the most common current threats to global human health, including chronic inflammatory diseases, autoimmune disorders, diabetes, vascular diseases and the majority of cancers. Accordingly, the NF-κB pathway is widely considered an attractive therapeutic target in a broad range of malignant and non-malignant diseases. Yet, despite the aggressive efforts by the pharmaceutical industry to develop a specific NF-κB inhibitor, none has been clinically approved, due to the dose-limiting toxicities associated with the global suppression of NF-κB. In this review, we summarise the main strategies historically adopted to therapeutically target the NF-κB pathway with an emphasis on oncology, and some of the emerging strategies and newer agents being developed to pharmacologically inhibit this pathway.
Collapse
Affiliation(s)
- Federica Begalli
- Centre for Cell Signalling and Inflammation, Department of Medicine, Imperial College London, London W12 0NN, UK.
| | - Jason Bennett
- Centre for Cell Signalling and Inflammation, Department of Medicine, Imperial College London, London W12 0NN, UK.
| | - Daria Capece
- Centre for Cell Signalling and Inflammation, Department of Medicine, Imperial College London, London W12 0NN, UK.
| | - Daniela Verzella
- Centre for Cell Signalling and Inflammation, Department of Medicine, Imperial College London, London W12 0NN, UK.
| | - Daniel D'Andrea
- Centre for Cell Signalling and Inflammation, Department of Medicine, Imperial College London, London W12 0NN, UK.
| | - Laura Tornatore
- Centre for Cell Signalling and Inflammation, Department of Medicine, Imperial College London, London W12 0NN, UK.
| | - Guido Franzoso
- Centre for Cell Signalling and Inflammation, Department of Medicine, Imperial College London, London W12 0NN, UK.
| |
Collapse
|
194
|
Wang HH, Chang TY, Lin WC, Wei KC, Shin JW. GADD45A plays a protective role against temozolomide treatment in glioblastoma cells. Sci Rep 2017; 7:8814. [PMID: 28821714 PMCID: PMC5562912 DOI: 10.1038/s41598-017-06851-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 06/19/2017] [Indexed: 02/08/2023] Open
Abstract
Glioblastoma multiforme (GBM) is one of the most aggressive cancers. Despite recent advances in multimodal therapies, high-grade glioma remains fatal. Temozolomide (TMZ) is an alkylating agent used worldwide for the clinical treatment of GBM; however, the innate and acquired resistance of GBM limits its application. Here, we found that TMZ inhibited the proliferation and induced the G2/M arrest of GBM cells. Therefore, we performed microarrays to identify the cell cycle- and apoptosis-related genes affected by TMZ. Notably, GADD45A was found to be up-regulated by TMZ in both cell cycle and apoptosis arrays. Furthermore, GADD45A knockdown (GADD45Akd) enhanced the cell growth arrest and cell death induced by TMZ, even in natural (T98) and adapted (TR-U373) TMZ-resistant cells. Interestingly, GADD45Akd decreased the expression of O6-methylguanine-DNA methyltransferase (MGMT) in TMZ-resistant cells (T98 and TR-U373). In MGMT-deficient/TMZ-sensitive cells (U87 and U373), GADD45Akd decreased TMZ-induced TP53 expression. Thus, in this study, we investigated the genes influenced by TMZ that were important in GBM therapy, and revealed that GADD45A plays a protective role against TMZ treatment which may through TP53-dependent and MGMT-dependent pathway in TMZ-sensitive and TMZ-resistant GBM, respectively. This protective role of GADD45A against TMZ treatment may provide a new therapeutic strategy for GBM treatment.
Collapse
Affiliation(s)
- Hsiao-Han Wang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tsuey-Yu Chang
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Chen Lin
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kuo-Chen Wei
- Departments of Neurosurgery, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Jyh-Wei Shin
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| |
Collapse
|
195
|
Leisching G, Pietersen RD, van Heerden C, van Helden P, Wiid I, Baker B. RNAseq reveals hypervirulence-specific host responses to M. tuberculosis infection. Virulence 2017; 8:848-858. [PMID: 27763806 PMCID: PMC5626229 DOI: 10.1080/21505594.2016.1250994] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 10/04/2016] [Accepted: 10/16/2016] [Indexed: 12/23/2022] Open
Abstract
The distinguishing factors that characterize the host response to infection with virulent Mycobacterium tuberculosis (M.tb) are largely confounding. We present an infection study with 2 genetically closely related M.tb strains that have vastly different pathogenic characteristics. The early host response to infection with these detergent-free cultured strains was analyzed through RNAseq in an attempt to provide information on the subtleties which may ultimately contribute to the virulent phenotype. Murine bone marrow derived macrophages (BMDMs) were infected with either a hyper- (R5527) or hypovirulent (R1507) Beijing M. tuberculosis clinical isolate. RNAseq revealed 69 differentially expressed host genes in BMDMs during comparison of these 2 transcriptomes. Pathway analysis revealed activation of the stress-induced and growth inhibitory Gadd45 signaling pathway in hypervirulent infected BMDMs. Upstream regulators of interferon activation such as and IRF3 and IRF7 were predicted to be upregulated in hypovirulent-infected BMDMs. Additional analysis of the host immune response through ELISA and qPCR included the use of human THP-1 macrophages where a robust proinflammatory response was observed after infection with the hypervirulent strain. RNAseq revealed 2 early-response genes (ier3 and saa3) and 2 host-defense genes (oasl1 and slpi) that were significantly upregulated by the hypervirulent strain. The role of these genes under M.tb infection conditions are largely unknown but here we provide validation of their presence with use of qPCR and Western blot. Further analysis into their biological role during infection with virulent M.tb is required.
Collapse
Affiliation(s)
- Gina Leisching
- SA MRC Center for TB Research, DST/NRF Center of Excellence for Biomedical Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Ray-Dean Pietersen
- SA MRC Center for TB Research, DST/NRF Center of Excellence for Biomedical Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Carel van Heerden
- Central Analytical Facility (CAF), DNA Sequencing Unit, Stellenbosch University, Stellenbosch, South Africa
| | - Paul van Helden
- SA MRC Center for TB Research, DST/NRF Center of Excellence for Biomedical Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Ian Wiid
- SA MRC Center for TB Research, DST/NRF Center of Excellence for Biomedical Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Bienyameen Baker
- SA MRC Center for TB Research, DST/NRF Center of Excellence for Biomedical Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| |
Collapse
|
196
|
Wang J, Ge P, Qiang L, Tian F, Zhao D, Chai Q, Zhu M, Zhou R, Meng G, Iwakura Y, Gao GF, Liu CH. The mycobacterial phosphatase PtpA regulates the expression of host genes and promotes cell proliferation. Nat Commun 2017; 8:244. [PMID: 28811474 PMCID: PMC5557760 DOI: 10.1038/s41467-017-00279-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 06/16/2017] [Indexed: 01/05/2023] Open
Abstract
Mycobacterium tuberculosis PtpA is a secreted effector protein that dephosphorylates several proteins in the host cell cytoplasm, such as p-JNK, p-p38, and p-VPS33B, leading to suppression of host innate immunity. Here we show that, in addition, PtpA enters the nucleus of host cells and regulates the expression of host genes, some of which are known to be involved in host innate immunity or in cell proliferation and migration (such as GADD45A). PtpA can bind directly to the promoter region of GADD45A in vitro. Both phosphatase activity and DNA-binding ability of PtpA are important in suppressing host innate immune responses. Furthermore, PtpA-expressing Mycobacterium bovis BCG promotes proliferation and migration of human lung adenoma A549 cells in vitro and in a mouse xenograft model. Further research is needed to test whether mycobacteria, via PtpA, might affect cell proliferation or migration in humans. Mycobacterium tuberculosis secretes a protein, PtpA, that dephosphorylates proteins in the host cell cytoplasm, weakening immune responses. Here, the authors show that PtpA also enters the nucleus, affects the expression of several host genes, and promotes proliferation and migration of a cancer cell line.
Collapse
Affiliation(s)
- Jing Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Pupu Ge
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Lihua Qiang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,Institute of Health Sciences, Anhui University, Hefei, 230601, China
| | - Feng Tian
- Center for Bioinformatics, Peking University, Beijing, 100871, China
| | - Dongdong Zhao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Qiyao Chai
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Mingzhao Zhu
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Rongbin Zhou
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Chinese Academy of Sciences Center for Excellence in Molecular Cell Sciences, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, 230027, China
| | - Guangxun Meng
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yoichiro Iwakura
- Division of Experimental Animal Immunology, Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, 278-0022, Japan
| | - George Fu Gao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Cui Hua Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. .,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China.
| |
Collapse
|
197
|
An alternative microRNA-mediated post-transcriptional regulation of GADD45A by p53 in human non-small-cell lung cancer cells. Sci Rep 2017; 7:7153. [PMID: 28769054 PMCID: PMC5541050 DOI: 10.1038/s41598-017-07332-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 06/28/2017] [Indexed: 01/30/2023] Open
Abstract
GADD45A (growth arrest and DNA damage inducible alpha), a stress response gene induced by genotoxic and nongenotoxic stresses, is implicated in various key processes, including the control of cell cycle checkpoints and DNA repair. The expression of GADD45A is directly regulated by numerous transcription factors, with p53 being the most representative. Moreover, post-transcriptional regulation also plays a role in GADD45A expression. However, little is known about the regulatory effects of microRNAs (miRNAs) on GADD45A expression. As a potential tumour suppressor, miR-138 has pleiotropic biological functions in various cancers. We have previously reported p53-mediated activation of miR-138 in human non-small-cell lung cancer (NSCLC) cells. In this study, we found that miR-138 specifically targeted AGO2, which affects the stability and maturation of miR-130b. Decreased expression of miR-130b promoted the expression of GADD45A and resulted in the G2/M phase arrest and proliferation inhibition in human NSCLC cells. Our results suggested that p53 could alternatively upregulate GADD45A in human NSCLC cells through a post-transcriptional pathway in which miR-138 is involved.
Collapse
|
198
|
Moghadam HK, Johnsen H, Robinson N, Andersen Ø, H Jørgensen E, Johnsen HK, Bæhr VJ, Tveiten H. Impacts of Early Life Stress on the Methylome and Transcriptome of Atlantic Salmon. Sci Rep 2017; 7:5023. [PMID: 28694447 PMCID: PMC5504078 DOI: 10.1038/s41598-017-05222-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 05/25/2017] [Indexed: 11/09/2022] Open
Abstract
Exposure to environmental stressors during early-life stages can change the rate and timing of various developmental processes. Epigenetic marks affecting transcriptional regulation can be altered by such environmental stimuli. To assess how stress might affect the methylome and transcriptome in salmon, fish were treated using cold-shock and air-exposure from the eye-stage until start-feeding. The fish were either stressed prior to hatching (E), post-hatching (PH), pre- and post-hatching (EPH) or not stressed (CO). Assessing transcriptional abundances just prior to start feeding, E and PH individuals were found to have modified the expression of thousands of genes, many with important functions in developmental processes. The EPH individuals however, showed expression similar to those of CO, suggesting an adaptive response to extended periods of stress. The methylome of stressed individuals differed from that of the CO, suggesting the importance of environment in shaping methylation signatures. Through integration of methylation with transcription, we identified bases with potential regulatory functions, some 10s of kb away from the targeted genes. We then followed fish growth for an additional year. Individuals in EPH showed superior growth compared to other treatment groups, highlighting how stress can potentially have long-lasting effects on an organism's ability to adapt to environmental perturbations.
Collapse
Affiliation(s)
| | - Hanne Johnsen
- Nofima AS, Muninbakken 9-13, NO-9291, Tromsø, Norway
| | - Nicholas Robinson
- Nofima AS, Osloveien 1, NO-1433, Ås, Norway.,Sustainable Aquaculture Laboratory - Temperate and Tropical (SALTT), School of BioSciences, The University of Melbourne, Parkville, Vic. 3010, Australia
| | - Øivind Andersen
- Nofima AS, Osloveien 1, NO-1433, Ås, Norway.,Department of Animal and Aquaculture Sciences, Norwegian University of Life Sciences (NMBU), NO-1430, Ås, Norway
| | - Even H Jørgensen
- Department of Arctic & Marine Biology, University of Tromsø, NO-9037, Tromsø, Norway
| | - Helge K Johnsen
- Norwegian College of Fishery Science, BFE, University of Tromsø, NO-9037, Tromsø, Norway
| | - Vegar J Bæhr
- Department of Arctic & Marine Biology, University of Tromsø, NO-9037, Tromsø, Norway
| | - Helge Tveiten
- Nofima AS, Muninbakken 9-13, NO-9291, Tromsø, Norway
| |
Collapse
|
199
|
Abstract
PURPOSE OF REVIEW Here, we discuss recent work focused on the role of activating transcription factor 4 (ATF4) in skeletal muscle atrophy. RECENT FINDINGS Muscle atrophy involves and requires widespread changes in skeletal muscle gene expression; however, the transcriptional regulatory proteins responsible for those changes are not yet well defined. Recent work indicates that some forms of muscle atrophy require ATF4, a stress-inducible bZIP transcription factor subunit that helps to mediate a broad range of stress responses in mammalian cells. ATF4 expression in skeletal muscle fibers is sufficient to induce muscle fiber atrophy and required for muscle atrophy during several stress conditions, including aging, fasting, and limb immobilization. By helping to activate specific genes in muscle fibers, ATF4 contributes to the expression of numerous mRNAs, including at least two mRNAs (Gadd45a and p21) that encode mediators of muscle fiber atrophy. Gadd45a promotes muscle fiber atrophy by activating the protein kinase MEKK4. p21 promotes atrophy by reducing expression of spermine oxidase, a metabolic enzyme that helps to maintain muscle fiber size under nonstressed conditions. SUMMARY In skeletal muscle fibers, ATF4 is critical component of a complex and incompletely understood molecular signaling network that causes muscle atrophy during aging, fasting, and immobilization.
Collapse
Affiliation(s)
- Christopher M Adams
- aDepartment of Internal Medicine bDepartment of Molecular Physiology and Biophysics cFraternal Order of Eagles Diabetes Research Center, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa dIowa City Veterans Affairs Medical Center, Iowa City eEmmyon, Inc., Coralville, Iowa, USA
| | | | | |
Collapse
|
200
|
Li L, Cai S, Liu S, Feng H, Zhang J. Bioinformatics analysis to screen the key prognostic genes in ovarian cancer. J Ovarian Res 2017; 10:27. [PMID: 28407786 PMCID: PMC5390356 DOI: 10.1186/s13048-017-0323-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 04/03/2017] [Indexed: 01/21/2023] Open
Abstract
Background Ovarian cancer (OC) is a gynecological oncology that has a poor prognosis and high mortality. This study is conducted to identify the key genes implicated in the prognosis of OC by bioinformatic analysis. Methods Gene expression data (including 568 primary OC tissues, 17 recurrent OC tissues, and 8 adjacent normal tissues) and the relevant clinical information of OC patients were downloaded from The Cancer Genome Atlas database. After data preprocessing, cluster analysis was conducted using the ConsensusClusterPlus package in R. Using the limma package in R, differential analysis was performed to identify feature genes. Based on Kaplan-Meier (KM) survival analysis, prognostic seed genes were selected from the feature genes. After key prognostic genes were further screened by cluster analysis and KM survival analysis, they were performed functional enrichment analysis and multivariate survival analysis. Using the survival package in R, cox regression analysis was conducted for the microarray data of GSE17260 to validate the key prognostic genes. Results A total of 3668 feature genes were obtained, among which 75 genes were identified as prognostic seed genes. Then, 25 key prognostic genes were screened, including AXL, FOS, KLF6, WDR77, DUSP1, GADD45B, and SLIT3. Especially, AXL and SLIT3 were enriched in ovulation cycle. Multivariate survival analysis showed that the key prognostic genes could effectively differentiate the samples and were significantly associated with prognosis. Additionally, GSE17260 confirmed that the key prognostic genes were associated with the prognosis of OC. Conclusion AXL, FOS, KLF6, WDR77, DUSP1, GADD45B, and SLIT3 might affect the prognosis of OC.
Collapse
Affiliation(s)
- Li Li
- The Department of Obstetrics and Gynecology, First Affiliated Hospital, Second Military Medical University, Changhai Road No 168, Shanghai, 200433, People's Republic of China
| | - Shengyun Cai
- The Department of Obstetrics and Gynecology, First Affiliated Hospital, Second Military Medical University, Changhai Road No 168, Shanghai, 200433, People's Republic of China
| | - Shengnan Liu
- The Department of Obstetrics and Gynecology, First Affiliated Hospital, Second Military Medical University, Changhai Road No 168, Shanghai, 200433, People's Republic of China
| | - Hao Feng
- The Department of Obstetrics and Gynecology, First Affiliated Hospital, Second Military Medical University, Changhai Road No 168, Shanghai, 200433, People's Republic of China
| | - Junjie Zhang
- The Department of Obstetrics and Gynecology, First Affiliated Hospital, Second Military Medical University, Changhai Road No 168, Shanghai, 200433, People's Republic of China.
| |
Collapse
|