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Maurya SK, Shadab G, Siddique HR. Chemosensitization of Therapy Resistant Tumors: Targeting Multiple Cell Signaling Pathways by Lupeol, A Pentacyclic Triterpene. Curr Pharm Des 2020; 26:455-465. [DOI: 10.2174/1381612826666200122122804] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 12/13/2019] [Indexed: 12/12/2022]
Abstract
Background:
The resistance of cancer cells to different therapies is one of the major stumbling blocks
for successful cancer treatment. Various natural and pharmaceuticals drugs are unable to control drug-resistance
cancer cell's growth. Also, chemotherapy and radiotherapy have several side effects and cannot apply to the patient
in excess. In this context, chemosensitization to the therapy-resistant cells by non-toxic phytochemicals
could be an excellent alternative to combat therapy-resistant cancers.
Objective:
To review the currently available literature on chemosensitization of therapy resistance cancers by
Lupeol for clinically approved drugs through targeting different cell signaling pathways.
Methods:
We reviewed relevant published articles in PubMed and other search engines from 1999 to 2019 to
write this manuscript. The key words used for the search were “Lupeol and Cancer”, “Lupeol and Chemosensitization”,
“Lupeol and Cell Signaling Pathways”, “Cancer Stem Cells and Lupeol” etc. The published results on the
chemosensitization of Lupeol were compared and discussed.
Results:
Lupeol chemosensitizes drug-resistant cancer cells for clinically approved drugs. Lupeol alone or in
combination with approved drugs inhibits inflammation in different cancer cells through modulation of expression
of IL-6, TNF-α, and IFN-γ. Lupeol, through altering the expression levels of BCL-2, BAX, Survivin, FAS,
Caspases, and PI3K-AKT-mTOR signaling pathway, significantly induce cell deaths among therapy-resistant
cells. Lupeol also modulates the molecules involved in cell cycle regulation such as Cyclins, CDKs, P53, P21,
and PCNA in different cancer types.
Conclusion:
Lupeol chemosensitizes the therapy-resistant cancer cells for the treatment of various clinically
approved drugs via modulating different signaling pathways responsible for chemoresistance cancer. Thus, Lupeol
might be used as an adjuvant molecule along with clinically approved drugs to reduce the toxicity and increase
the effectiveness.
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Affiliation(s)
- Santosh K. Maurya
- Molecular Cancer Genetics & Translational Research Lab, Section of Genetics, Department of Zoology, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
| | - G.G.H.A. Shadab
- Molecular Toxicology & Cytogenetics Lab, Section of Genetics, Department of Zoology, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
| | - Hifzur R. Siddique
- Molecular Cancer Genetics & Translational Research Lab, Section of Genetics, Department of Zoology, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
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bioPROTACs as versatile modulators of intracellular therapeutic targets including proliferating cell nuclear antigen (PCNA). Proc Natl Acad Sci U S A 2020; 117:5791-5800. [PMID: 32123106 DOI: 10.1073/pnas.1920251117] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Targeted degradation approaches such as proteolysis targeting chimeras (PROTACs) offer new ways to address disease through tackling challenging targets and with greater potency, efficacy, and specificity over traditional approaches. However, identification of high-affinity ligands to serve as PROTAC starting points remains challenging. As a complementary approach, we describe a class of molecules termed biological PROTACs (bioPROTACs)-engineered intracellular proteins consisting of a target-binding domain directly fused to an E3 ubiquitin ligase. Using GFP-tagged proteins as model substrates, we show that there is considerable flexibility in both the choice of substrate binders (binding positions, scaffold-class) and the E3 ligases. We then identified a highly effective bioPROTAC against an oncology target, proliferating cell nuclear antigen (PCNA) to elicit rapid and robust PCNA degradation and associated effects on DNA synthesis and cell cycle progression. Overall, bioPROTACs are powerful tools for interrogating degradation approaches, target biology, and potentially for making therapeutic impacts.
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Yang X, Zhao Y, Sun Q, Yang Y, Gao Y, Ge W, Liu J, Xu X, Zhang J. Adenosine accumulation causes metabolic disorders in testes and associates with lower testosterone level in obese mice. Mol Reprod Dev 2020; 87:241-250. [PMID: 32026564 DOI: 10.1002/mrd.23321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 01/05/2020] [Indexed: 12/27/2022]
Abstract
Overweight and obese men face numerous health problems, including type 2 diabetes, subfertility, and even infertility. However, few studies have focused on the effects of nutritional status and obesity-related regulatory signals on fertility deficiency. Our previous observations have shown that the elevation of plasma 5'-adenosine monophosphate (5'-AMP) and the accumulation of adenosine in liver and muscle of obese diabetic db/db mice are related to insulin resistance. Here, we found that adenosine accumulation in testis is a common marker of both genetic obesity and high-fat-diet induced obese mice. An messenger RNA sequencing analysis indicated that 78 upregulated genes and 155 downregulated genes in the testis of 5'-AMP-treated mice overlapped with the same genes in the testis of ob/ob mice, and these genes belonged to the clusters of steroid metabolic process and regulation of hormone levels, respectively. Serum testosterone was reduced in ob/ob and 5'-AMP-treated mice. Metabolomic analysis based on 1 H nuclear magnetic resonance showed that the testicular metabolic profiles of ob/ob mice were similar to those of 5'-AMP treated mice. Exogenous 5'-AMP inhibited the phosphorylation of AKT and mammalian target of rapamycin signal transduction and reduced the proliferating cell nuclear antigen expressions in testes. Our results suggest that the accumulation of adenosine causes metabolic disorders in testes and associates lower testosterone level in obese mice.
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Affiliation(s)
- Xiao Yang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yang Zhao
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Qi Sun
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yunxia Yang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yan Gao
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Wenhao Ge
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Junhao Liu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
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Kang HS, Kwon HY, Kim IK, Ban WH, Kim SW, Kang HH, Yeo CD, Lee SH. Intermittent hypoxia exacerbates tumor progression in a mouse model of lung cancer. Sci Rep 2020; 10:1854. [PMID: 32024881 PMCID: PMC7002457 DOI: 10.1038/s41598-020-58906-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 01/02/2020] [Indexed: 02/07/2023] Open
Abstract
The purpose of this study was to evaluate whether obstructive sleep apnea (OSA)-related chronic intermittent hypoxia (CIH) influences lung cancer progression and to elucidate the associated mechanisms in a mouse model of lung cancer. C57/BL6 mice in a CIH group were exposed to intermittent hypoxia for two weeks after tumor induction and compared with control mice (room air). Hypoxia inducible factor 1α (HIF-1α), vascular endothelial growth factor (VEGF) and metastasis-related matrix metalloproteinases (MMP) were measured. The expression levels of several hypoxia-related pathway proteins including HIF-1α, Wnt/ß-catenin, the nuclear factor erythroid 2-related factor 2 (Nrf2) and mammalian target of rapamycin-ERK were measured by western blot. The number (P < 0.01) and volume (P < 0.05) of tumors were increased in the CIH group. The activity of MMP-2 was enhanced after CIH treatment. The level of VEGF was increased significantly in the CIH group (p < 0.05). ß-catenin and Nrf2 were translocated to the nucleus and the levels of downstream effectors of Wnt/ß-catenin signaling increased after IH exposure. CIH enhanced proliferative and migratory properties of tumors in a mouse model of lung cancer. ß-catenin and Nrf2 appeared to be crucial mediators of tumor growth.
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Affiliation(s)
- Hye Seon Kang
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hee Young Kwon
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - In Kyoung Kim
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Woo Ho Ban
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sei Won Kim
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyeon Hui Kang
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang Dong Yeo
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang Haak Lee
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea. .,Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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105
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Wu X, Zheng X, Cheng J, Zhang K, Ma C. LncRNA TUG1 regulates proliferation and apoptosis by regulating miR-148b/IGF2 axis in ox-LDL-stimulated VSMC and HUVEC. Life Sci 2020; 243:117287. [DOI: 10.1016/j.lfs.2020.117287] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 12/30/2019] [Accepted: 01/07/2020] [Indexed: 12/20/2022]
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Sirotkin AV, Kadasi A, Baláži A, Kotwica J, Alrezaki A, Harrath AH. Mechanisms of the direct effects of oil-related contaminants on ovarian cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:5314-5322. [PMID: 31845279 DOI: 10.1007/s11356-019-07295-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
We studied the influence of oil-related environmental contaminants (OREC) on the viability, hormone secretion, and protein expression using cultured porcine ovarian granulosa cells. Addition of benzene and xylene promoted proliferation and apoptosis and reduced ovarian cell viability whereas toluene induced apoptosis only. The release of progesterone (P4) and oxytocin (OT) was promoted by benzene and xylene, and suppressed by toluene while prostaglandin F (PGF) output was stimulated by benzene and toluene, but not xylene. The addition of FSH to the culture medium increased ovarian cell proliferation and hormone release, but did not affect apoptosis. However, this FSH's proliferative effect has been prevented in presence of benzene. On the other hand and in the presence of FSH, toluene prevented P4 release and decreased PGF release, while xylene prevented PGF release. We concluded that OREC can affect reproductive processes by directly influencing ovarian cell proliferation, apoptosis, viability, hormone release, and response to gonadotropins.
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Affiliation(s)
- Alexander V Sirotkin
- Department of Zoology and Anthropology, Constantine the Philosopher University, 949 74, Nitra, Slovakia
- Department of Genetics and Reproduction, Research Institute of Animal Production, 949 59, Lužianky, Slovakia
| | - Attila Kadasi
- Department of Genetics and Reproduction, Research Institute of Animal Production, 949 59, Lužianky, Slovakia
- Department of Animal Physiology, Slovak University of Agriculture, Nitra, Slovakia
| | - Andrej Baláži
- Department of Genetics and Reproduction, Research Institute of Animal Production, 949 59, Lužianky, Slovakia
| | - Jan Kotwica
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Bydgoska 7, PL-10-243, Olsztyn, Poland
| | - Abdulkarem Alrezaki
- Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdel Halim Harrath
- Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
- Higher Institute of Applied Biological Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia.
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107
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MicroRNA-127 Inhibits the Progression of Melanoma by Downregulating Delta-Like Homologue 1. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8523465. [PMID: 32051829 PMCID: PMC6995326 DOI: 10.1155/2020/8523465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/10/2019] [Indexed: 12/19/2022]
Abstract
Objective Melanoma is the most common form of skin cancer with low survival rate and poor prognosis. MicroRNAs (miRNAs) have been reported to play essential roles in progression of melanoma. However, the role and mechanism of miR-127 in the process of melanoma remain poorly understood. Methods The expressions of miR-127 and delta-like homologue 1 (DLK1) were measured in melanoma tissues and cells by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. Cell proliferation and apoptosis were measured by MTT assay, flow cytometry, and Western blot. The interaction between miR-127 and DLK1 was investigated by bioinformatics analysis, luciferase activity assay, and RNA immunoprecipitation (RIP). Murine xenograft model was conducted to investigate the effect of miR-127 on tumor growth in vivo. Results miR-127 was inhibited and DLK1 mRNA was enhanced in melanoma tissues and cells. Low abundance of miR-127 in melanoma tissues predicted a poor prognosis and was associated with the malignant clinicopathological features. Overexpression of miR-127 inhibited cell proliferation and induced apoptosis in melanoma cells. Moreover, DLK1 was targeted by miR-127 and its restoration reversed the regulatory effect of miR-127 on the process of melanoma. Besides, the addition of miR-127 suppressed xenograft tumor growth via suppressing DLK1 protein level in nude mice. Conclusion miR-127 blocked the development of melanoma by targeting DLK1, providing a novel biomarker for the treatment of melanoma.
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108
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Yue Y, Li YQ, Fu S, Wu YT, Zhu L, Hua L, Lv JY, Li YL, Yang DL. Osthole inhibits cell proliferation by regulating the TGF-β1/Smad/p38 signaling pathways in pulmonary arterial smooth muscle cells. Biomed Pharmacother 2020; 121:109640. [DOI: 10.1016/j.biopha.2019.109640] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 10/22/2019] [Accepted: 10/26/2019] [Indexed: 01/04/2023] Open
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109
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Zhai Y, Ma Y, Liu J, Zhu Y, Xie K, Yu L, Zhang H. Brain-Derived Neurotrophic Factor Alleviates Ropivacaine-Induced Neuronal Damage by Enhancing the Akt Signaling Pathway. Med Sci Monit 2019; 25:10154-10163. [PMID: 31885368 PMCID: PMC6951110 DOI: 10.12659/msm.918479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is one of the neurotrophic factors that modulate critical metabolic activities, including apoptosis, proliferation, and differentiation modulation. Although numerous studies have focused on the damaging effects of BDNF on neurons, the underlying relationship between these effects remains unclear. In the present study, we investigated the protective effect of BDNF on neuronal injury induced by ropivacaine and assessed whether it is related to the Akt signaling pathway. MATERIAL AND METHODS Human neuroblastoma cell line SH-SY5Y cells were stimulated with ropivacaine at different concentrations to induce neuronal injury. MTT analysis, flow cytometry, immunohistochemistry, qRT-PCR, and Western blot were used to investigate the proliferation activity, apoptotic level, and expression of Akt, PCNA, Bax, Bcl-2, and cleaved caspase-3, collectively demonstrating the underlying regulatory mechanisms. RESULTS Compared with the control group, the morphological damage and proliferation inhibition of SH-SY5Y cells induced by ropivacaine were dose-dependent and time-dependent, accompanied by a significant decrease in Akt expression. We treated cells with BDNF or SC79, which is a selective cell-permeable small molecule Akt activator. The results showed that, compared to the ropivacaine group, the morphological damage of neurons was alleviated; cell proliferation activity was enhanced; apoptotic rate was reduced; PCNA, Bcl-2, and phosphorylated Akt expression levels were increased; and Bax and caspase-3 gene and protein expression were decreased. We were able to reverse these effects by administering API-2, an Akt inhibitor. CONCLUSIONS BDNF can alleviate ropivacaine-induced neuronal injury by activating Akt signaling pathway, consequently modulating the proliferation and apoptosis of neurons.
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Affiliation(s)
- Yongyi Zhai
- Department of Rehabilitation, Linzi District People's Hospital, Zibo, Shandong, China (mainland)
| | - Yong Ma
- Department of Anesthesiology, People's Liberation Army 970 Hospital, Yantai, Shandong, China (mainland)
| | - Jingying Liu
- Department of Obstetrics, Yantaishan Hospital, Yantai, Shandong, China (mainland)
| | - Yulin Zhu
- Department of Anesthesiology, Yantanshan Hospital, Yantai, Shandong, China (mainland)
| | - Kun Xie
- Department of Anesthesiology, The Second Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Lingzhi Yu
- Department of Pain, Jinan Central Hospital affiliated to Shandong University, Jinan, Shandong, China (mainland)
| | - Hao Zhang
- Department of Anesthesiology, People's Liberation Army 970 Hospital, Yantai, Shandong, China (mainland)
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Yang L, Lei Q, Li L, Yang J, Dong Z, Cui H. Silencing or inhibition of H3K79 methyltransferase DOT1L induces cell cycle arrest by epigenetically modulating c-Myc expression in colorectal cancer. Clin Epigenetics 2019; 11:199. [PMID: 31888761 PMCID: PMC6937672 DOI: 10.1186/s13148-019-0778-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 11/12/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Epigenetic regulations play pivotal roles in tumorigenesis and cancer development. Disruptor of telomeric silencing-1-like (DOT1L), also known as KMT4, is the only identified histone methyltransferase that catalyzes the mono-, di-, and tri-methylation of lysine 79 histone 3 (H3K79). However, little is known about the effect of H3K79 methylation on the modulation of colorectal cancer (CRC) development. METHODS DOT1L expression profiles in different subgroups of CRC tissues and its clinical significances were analyzed from some online datasheets. DOT1L in CRC cell lines was silenced by either lentivirus-mediated knockdown or inhibited by its specific inhibitor, EPZ004777. Then cell proliferation was detected by MTT assay, BrdU assay, and soft agar assay; cell cycle was detected by cytometry; and tumorigenicity was detected by using nude mice xenograft models. Clinical co-expression was analyzed between DOT1L and c-Myc. Chromatin immunoprecipitation (ChIP) assay was used to determine whether the translation of c-Myc was epigenetically regulated by H3K79me2 induced by DOT1L. c-Myc overexpression was used to rescue the cell cycle arrest and tumor growth induced by DOT1L silencing or inhibition in CRC. RESULTS We found that DOT1L was highly expressed in colorectal cancer and was negatively related to the prognosis of patients with CRC. Silencing or inhibition of DOT1L blocked cell proliferation, BrdU incorporation, self-renewal capability in vitro, and tumorigenicity in vivo. Besides, inhibition or silencing of DOT1L also induced cell cycle arrest at S phase, as well as decreased the expression of CDK2 and Cyclin A2. Furthermore, in the clinical databases of CRC, we found that the expression of DOT1L was positively correlated with that of c-Myc, a major regulator in the upstream of cell cycle-related factors. Besides, c-Myc expression was downregulated after DOT1L knockdown and c-Myc restoration rescued decrease of cell proliferation, BrdU corporation, self-renewal capability, cell cycle progression in vitro and tumorigenicity in vivo induced by DOT1L silencing. Then we found that H3K79 methylation was decreased after DOT1L knockdown. ChIP assay showed that H3K79me2 was enriched on the - 682~+ 284 region of c-Myc promoter, and the enrichment was decreased after DOT1L inhibition. CONCLUSIONS Our results show that DOT1L epigenetically promotes the transcription of c-Myc via H3K79me2. DOT1L silencing or inhibition induces cell cycle arrest at S phase. DOT1L is a potential marker for colorectal cancer and EPZ004777 may be a potential drug for the treatment of colorectal cancer.
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Affiliation(s)
- Liqun Yang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, No.2, Tiansheng Road, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Beibei, Chongqing, 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400716, China
| | - Qian Lei
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, No.2, Tiansheng Road, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Beibei, Chongqing, 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400716, China
| | - Lin Li
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, No.2, Tiansheng Road, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Beibei, Chongqing, 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400716, China
| | - Jie Yang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, No.2, Tiansheng Road, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Beibei, Chongqing, 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400716, China
| | - Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, No.2, Tiansheng Road, Beibei, Chongqing, 400716, China. .,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China. .,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Beibei, Chongqing, 400716, China. .,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400716, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, No.2, Tiansheng Road, Beibei, Chongqing, 400716, China. .,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China. .,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Beibei, Chongqing, 400716, China. .,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing, 400716, China.
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Bioinformatics analysis of esophageal cancer unveils an integrated mRNA-lncRNA signature for predicting prognosis. Oncol Lett 2019; 19:1434-1442. [PMID: 31966072 PMCID: PMC6956414 DOI: 10.3892/ol.2019.11208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 11/08/2019] [Indexed: 01/20/2023] Open
Abstract
Esophageal cancer (ESCA) carries a poor prognosis among gastrointestinal malignancies. The present study developed a signature based on mRNAs and long non-coding RNAs (lncRNAs) to predict prognosis in ESCA by using The Cancer Genome Atlas database. By using least absolute shrinkage and selection operator penalized regression, a set of RNAs (three mRNAs and two lncRNAs) was identified and used to build a risk score system of ESCA prognosis, which was used to stratify patients having considerable diverse survival in the training set [hazard ratio (HR), 3.932; 95% CI, 1.555–9.944; P<0.002] into high- and low-risk groups. The authentication of the results was achieved through the test set (HR, 3.150; 95% CI, 1.113–8.918; P<0.02) and the entire set (HR, 3.181; 95% CI, 1.686–6.006; P<0.0002). The results from multivariate Cox proportional hazard regression analysis in the entire set suggested that the prognostic significance of this signature may be independent of patients' clinicopathological characteristics. Furthermore, this signature was associated with several molecular signaling pathways of cancer according to Gene Set Enrichment Analysis. In addition, a nomogram was built and the risk score and TNM stage were integrated to estimate the 1- and 3-year overall survival rates. The results from the present study demonstrated that the integrated mRNA-lncRNA signature may be considered as a novel biomarker for the prognosis of ESCA.
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112
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Bone Marrow-Derived Mesenchymal Stem Cell Potential Regression of Dysplasia Associating Experimental Liver Fibrosis in Albino Rats. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5376165. [PMID: 31781620 PMCID: PMC6874956 DOI: 10.1155/2019/5376165] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/25/2019] [Accepted: 10/08/2019] [Indexed: 02/07/2023]
Abstract
Objectives Assessing the therapeutic efficacy of superparamagnetic iron oxide nanoparticles (SPIO) labeled bone marrow-derived mesenchymal stem cells (BM-MSCs) on experimental liver fibrosis and associated dysplasia. Materials and Methods MSCs were obtained from 10 male Sprague-Dawley rats while 50 female rats were divided into control (CG), liver fibrosis (CCL4, intraperitoneal injection of CCl4 for 8 weeks), and CCL4 rats treated with SPIO-labeled MSCs (MSCs/CCl4) with and without continuing CCL4 injection for another 8 weeks. Assessment included liver histopathology, liver function tests, transmission electron microscopic tracing for homing of SPIO-MSCs, immunofluorescence histochemistry for fibrosis and dysplasia markers (transforming growth factor-beta (TGF-β1), proliferation nuclear antigen (PCNA), glypican 3)), and quantitative gene expression analysis for matrix metalloproteinase-1 (MMP-1) and tissue inhibitor of metalloproteinase-1 (TIMP-1). Results SPIO-labeled MSCs were engrafted in the fibrotic liver and the BM/MSCs demonstrated regression for fibrous tissue deposition and inhibition progression of dysplastic changes in the liver of CCl4-treated rats on both the histological and molecular levels. Conclusion BM-MSCs possess regenerative and antidysplastic potentials.
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Tang Q, Xie M, Yu S, Zhou X, Xie Y, Chen G, Guo F, Chen L. Periodic Oxaliplatin Administration in Synergy with PER2-Mediated PCNA Transcription Repression Promotes Chronochemotherapeutic Efficacy of OSCC. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900667. [PMID: 31728273 PMCID: PMC6839751 DOI: 10.1002/advs.201900667] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 08/08/2019] [Indexed: 05/21/2023]
Abstract
Developing chemotherapeutic resistance affects clinical outcomes of oxaliplatin treatment on various types of cancer. Thus, it is imperative to explore alternative therapeutic strategies to improve the efficacy of oxaliplatin. Here, it is shown that circadian regulator period 2 (PER2) can potentiate the cytotoxicity of oxaliplatin and boost cell apoptosis by inhibiting DNA adducts repair in human oral squamous cell carcinoma (OSCC) cells. The circadian timing system is closely involved in controling the activity of DNA adducts repair and gives it a 24 h rhythm. The mechanistic dissection clarifies that PER2 can periodically suppress proliferating cell nuclear antigen (PCNA) transcription by pulling down circadian locomotor output cycles kaput-brain and muscle arnt-like 1 heterodimer from PCNA promoter in a CRY1/2-dependent manner, which subsequently impedes oxaliplatin-induced DNA adducts repair. Similarly, PER2 is capable of improving the efficacy of classical DNA-damaging chemotherapeutic agents. The tumor-bearing mouse model displays PER2 can be deployed as an oxaliplatin administration timing biomarker. In summary, it is believed that the chronochemotherapeutic strategy matching PER2 expression rhythm can efficiently improve the oxaliplatin efficacy of OSCC.
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Affiliation(s)
- Qingming Tang
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Mengru Xie
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Shaoling Yu
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Xin Zhou
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Yanling Xie
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Guangjin Chen
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Fengyuan Guo
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Lili Chen
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
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114
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The Neglectable Impact of Delayed Graft Function on Long-term Graft Survival in Kidneys Donated After Circulatory Death Associates With Superior Organ Resilience. Ann Surg 2019; 270:877-883. [DOI: 10.1097/sla.0000000000003515] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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115
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Kong J, Wang T, Zhang Z, Yang X, Shen S, Wang W. Five Core Genes Related to the Progression and Prognosis of Hepatocellular Carcinoma Identified by Analysis of a Coexpression Network. DNA Cell Biol 2019; 38:1564-1576. [PMID: 31633379 DOI: 10.1089/dna.2019.4932] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The molecular mechanism of tumorigenesis of the prevalent cancer hepatocellular carcinoma (HCC) is unclear. In this study, through weighted gene coexpression network analysis, a coexpression network was constructed by selecting the top 25% most variant genes in the dataset GSE62232. The average linkage hierarchical clustering identified 24 modules, and among them, the pink module associated with prognosis of HCC was screened. Five gene candidates (PCNA, RFC4, PTTG1, H2AFZ, and RRM1) with a common network in the module were screened after the protein-protein interaction network complex was combined with the coexpression network. After progression and survival analysis, all candidates were identified as real core genes. According to the Human Protein Atlas and the Oncomine database, these genes were dysregulated in HCC samples. The receiver operating characteristic curve proved that the expression levels of the core genes had high diagnostic efficacy. The results of gene set enrichment analysis and functional enrichment analysis demonstrated the importance of the cell cycle-related pathways in HCC progression and prognosis. In conclusion, the five real core genes and cell cycle-related pathways identified in this study could greatly improve the knowledge about HCC progression and contribute to HCC treatment.
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Affiliation(s)
- Junjie Kong
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, P.R. China
| | - Tao Wang
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, P.R. China
| | - Zifei Zhang
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, P.R. China
| | - Xianwei Yang
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, P.R. China
| | - Shu Shen
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, P.R. China
| | - Wentao Wang
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, P.R. China
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Skullcapflavone I suppresses proliferation of human lung cancer cells via down-regulating microRNA-21. Exp Mol Pathol 2019; 110:104285. [DOI: 10.1016/j.yexmp.2019.104285] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 07/01/2019] [Accepted: 07/10/2019] [Indexed: 11/19/2022]
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117
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Overview of the Anticancer Profile of Avenanthramides from Oat. Int J Mol Sci 2019; 20:ijms20184536. [PMID: 31540249 PMCID: PMC6770293 DOI: 10.3390/ijms20184536] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/06/2019] [Accepted: 09/10/2019] [Indexed: 12/12/2022] Open
Abstract
Cancer represents one of the leading causes of death worldwide. Progresses in treatment of cancer have continued at a rapid pace. However, undesirable side effects and drug resistance remain major challenges for therapeutic success. Natural products represent a valuable starting point to develop new anticancer strategies. Polyphenols, well-known as antioxidant, exert anticancer effects through the modulation of multiple pathways and mechanisms. Oat (Avena sativa L., Poaceae) is a unique source of avenanthramides (AVAs), a group of polyphenolic alkaloids, considered as its signature compounds. The present review aims to offer a comprehensive and critical perspective on the chemopreventive and chemotherapeutic potential of AVAs. AVAs prevent cancer mainly by blocking reactive species. Moreover, they exhibit potential therapeutic activity through the modulation of different pathways including the activation of apoptosis and senescence, the block of cell proliferation, and the inhibition of epithelial mesenchymal transition and metastatization. AVAs are promising chemopreventive and anticancer phytochemicals, which need further clinical trials and toxicological studies to define their efficacy in preventing and reducing the burden of cancer diseases.
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118
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Sirotkin AV, Benco A, Mlyncek M, Kotwica J, Alwasel S, Harrath AH. Transcription factor p53 regulates healthy human ovarian cells function. C R Biol 2019; 342:186-191. [PMID: 31495738 DOI: 10.1016/j.crvi.2019.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/11/2019] [Accepted: 08/12/2019] [Indexed: 10/26/2022]
Abstract
The aim of our study was to understand the role of transcription factor p53 in the control of healthy human ovarian cell functions. Ovarian granulosa cells were transfected with a cDNA construct encoding p53. The intracellular accumulation of p53, of the apoptosis marker bax, and of the proliferation marker PCNA, as well as the release of progesterone (P4), insulin-like growth factor I (IGF-I), oxytocin (OT), and prostaglandin F (PGF) and E2 (PGE) were evaluated by quantitative immunocytochemistry and RIA/IRMA. Transfection with the p53 cDNA construct resulted in the accumulation of p53 and bax, in a reduced level of released PCNA and PGF, and in an increased PGE output. No changes in P4, IGF-I, and OT secretion were found. These observations are the first demonstration of the involvement of p53 in the control of healthy human ovarian cell functions, namely, in the downregulation of proliferation, in the upregulation of apoptosis, and in the alteration of PGF and PGE release, but not of P4, IGF-I, or OT.
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Affiliation(s)
- Alexander V Sirotkin
- Constantine the Philosopher University, 949 74 Nitra, Slovak Republic; Research Institute for Animal Production in Nitra, 951 41 Lužianky, Slovak Republic.
| | - Andrej Benco
- Constantine the Philosopher University, 949 74 Nitra, Slovak Republic
| | - Milos Mlyncek
- Constantine the Philosopher University, 949 74 Nitra, Slovak Republic
| | - Jan Kotwica
- Institute of Animal Reproduction and Food Research, 10-718 Olsztyn-Kortowo, Poland
| | - Saleh Alwasel
- King Saud University, P. O. Box 2455, 11451 Riyadh, Saudi Arabia
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Kemmerling U, Osuna A, Schijman AG, Truyens C. Congenital Transmission of Trypanosoma cruzi: A Review About the Interactions Between the Parasite, the Placenta, the Maternal and the Fetal/Neonatal Immune Responses. Front Microbiol 2019; 10:1854. [PMID: 31474955 PMCID: PMC6702454 DOI: 10.3389/fmicb.2019.01854] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 07/29/2019] [Indexed: 12/11/2022] Open
Abstract
Chagas disease (CD), caused by the protozoan parasite Trypanosoma cruzi, is considered a neglected tropical disease by the World Health Organization. Congenital transmission of CD is an increasingly relevant public health problem. It progressively becomes the main transmission route over others and can occur in both endemic and non-endemic countries. Though most congenitally infected newborns are asymptomatic at birth, they display higher frequencies of prematurity, low birth weight, and lower Apgar scores compared to uninfected ones, and some suffer from severe symptoms. If not diagnosed and treated, infected newborns are at risk of developing disabling and life-threatening chronic pathologies later in life. The success or failure of congenital transmission depends on interactions between the parasite, the placenta, the mother, and the fetus. We review and discuss here the current knowledge about these parameters, including parasite virulence factors such as exovesicles, placental tropism, potential placental defense mechanisms, the placental transcriptome of infected women, gene polymorphism, and the maternal and fetal/neonatal immune responses, that might modulate the risk of T. cruzi congenital transmission.
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Affiliation(s)
- Ulrike Kemmerling
- Programa de Anatomía y Biología del Desarrollo, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Antonio Osuna
- Grupo de Bioquímica y Parasitología Molecular, Departamento de Parasitología, Instituto de Biotecnología, Universidad de Granada, Granada, Spain
| | - Alejandro Gabriel Schijman
- Molecular Biology of Chagas Disease Laboratory, Genetic Engineering and Molecular Biology Research Institute Dr. Héctor Torres (INGEBI-CONICET), Buenos Aires, Argentina
| | - Carine Truyens
- Laboratory of Parasitology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
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120
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Shi J, Guan X, Zhan F, Liu C, Li Z, Yao Y, Wang B, Lou C, Zhang Y. CSN6 expression is associated with pancreatic cancer progression and predicts poor prognosis. Cancer Biol Ther 2019; 20:1290-1299. [PMID: 31311398 DOI: 10.1080/15384047.2019.1632143] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Constitutive photomorphogenesis 9 (COP9) signalosome 6 (CSN6) plays an essential role in tumor development. The present study aims to demonstrate that CSN6 is an important biomarker and has prognostic value for patients with pancreatic ductal adenocarcinoma (PDAC). We analyzed CSN6 expression levels in PDAC and adjacent non-cancerous tissues using immunohistochemistry (IHC) and quantitative real-time PCR (qPCR) analysis. We found that CSN6 was highly expressed in PDAC tissues, contrasting to adjacent non-cancerous tissues. Interestingly, CSN6 expression was positively associated with proliferating cell nuclear antigen (PCNA) expression. Further investigation indicated that CSN6 knockdown significantly suppressed the proliferation of PDAC cells and decreased the expression levels of PCNA, while CSN6 overexpression increased the proliferation, as well as the expression levels of PCNA in PDAC cells. Furthermore, a χ2 test indicated that the expression of CSN6 in PDAC tissues was markedly associated with tumor infiltration and serum carbohydrate antigen 19-9 levels. In addition, univariate and multivariate analyses showed that CSN6 levels were significantly correlated with poor clinical outcomes of patients with PDAC. Kaplan-Meier analysis showed that patients with high expression of CSN6 had shorter overall survival. These results suggest that the expression of CSN6 correlates with the progression of PDAC, resulting in poor prognosis. Thus, CSN6 may play a significant role in the development of PDAC and is a potential target to prevent and treat PDAC.
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Affiliation(s)
- Jiaqi Shi
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences , Harbin , P. R. China
| | - Xin Guan
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences , Harbin , P. R. China
| | - Fei Zhan
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences , Harbin , P. R. China
| | - Chao Liu
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences , Harbin , P. R. China
| | - Zhiwei Li
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China
| | - Yuanfei Yao
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences , Harbin , P. R. China
| | - Bojun Wang
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences , Harbin , P. R. China
| | - Changjie Lou
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China
| | - Yanqiao Zhang
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital , Harbin , Heilongjiang Province , P. R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences , Harbin , P. R. China
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121
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Kowalska E, Bartnicki F, Fujisawa R, Bonarek P, Hermanowicz P, Tsurimoto T, Muszynska K, Strzalka W. Inhibition of DNA replication by an anti-PCNA aptamer/PCNA complex. Nucleic Acids Res 2019; 46:25-41. [PMID: 29186524 PMCID: PMC5758903 DOI: 10.1093/nar/gkx1184] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 11/13/2017] [Indexed: 12/29/2022] Open
Abstract
Proliferating cell nuclear antigen (PCNA) is a multifunctional protein present in the nuclei of eukaryotic cells that plays an important role as a component of the DNA replication machinery, as well as DNA repair systems. PCNA was recently proposed as a potential non-oncogenic target for anti-cancer therapy. In this study, using the Systematic Evolution of Ligands by EXponential enrichment (SELEX) method, we developed a short DNA aptamer that binds human PCNA. In the presence of PCNA, the anti-PCNA aptamer inhibited the activity of human DNA polymerase δ and ϵ at nM concentrations. Moreover, PCNA protected the anti-PCNA aptamer against the exonucleolytic activity of these DNA polymerases. Investigation of the mechanism of anti-PCNA aptamer-dependent inhibition of DNA replication revealed that the aptamer did not block formation, but was a component of PCNA/DNA polymerase δ or ϵ complexes. Additionally, the anti-PCNA aptamer competed with the primer-template DNA for binding to the PCNA/DNA polymerase δ or ϵ complex. Based on the observations, a model of anti-PCNA aptamer/PCNA complex-dependent inhibition of DNA replication was proposed.
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Affiliation(s)
- Ewa Kowalska
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland
| | - Filip Bartnicki
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland
| | - Ryo Fujisawa
- Department of Biology, Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Piotr Bonarek
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland
| | - Pawel Hermanowicz
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland.,Laboratory of Photobiology, Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, Krakow 30-387, Poland
| | - Toshiki Tsurimoto
- Department of Biology, Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Klaudia Muszynska
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland
| | - Wojciech Strzalka
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland
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122
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Vigneron M, Dietsch F, Bianchetti L, Dejaegere A, Nominé Y, Cordonnier A, Zuber G, Chatton B, Donzeau M. Self-Associating Peptides for Modular Bifunctional Conjugation of Tetramer Macromolecules in Living Cells. Bioconjug Chem 2019; 30:1734-1744. [PMID: 31091078 DOI: 10.1021/acs.bioconjchem.9b00276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Monitoring the assembly of macromolecules to design entities with novel properties can be achieved either chemically creating covalent bonds or by noncovalent connections using appropriate structural motifs. In this report, two self-associating peptides (named K3 and E3) that originate from p53 tetramerization domain were developed as tools for highly specific and noncovalent heterotetramerization of two biomolecules. The pairing/coupling preferences of K3 and E3 were first evaluated by molecular modeling data and confirmed using circular dichroism spectroscopy, size-exclusion chromatography, and biological assays. Regardless of the moieties fused to K3 and E3, these two peptides self-assembled into dimers of dimers to form bivalent heterotetrameric complexes that proved to be extremely stable inside living cells. The benefits of the multivalency in terms of avidity, specificity, and expanded functional activity were strikingly revealed when the proliferating cell nuclear antigen (PCNA), which is essential for DNA replication, was targeted using a heterotetramer presenting both an antibody fragment against PCNA and a specific PCNA binder peptide. In vitro heterotetramerization of these two known PCNA ligands increased their binding efficiencies to PCNA up to 80-fold compared to the best homotetramer counterpart. In cellulo, the heterotetramers were able to efficiently inhibit DNA replication and to trigger cell death. Altogether, we demonstrate that these two biselective self-assembling peptidic domains offer a versatile noncovalent conjugation method that can be easily implemented for protein engineering.
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Affiliation(s)
- Marc Vigneron
- UMR7242 Biotechnologie et Signalisation Cellulaire, Ecole Supérieure de Biotechnologie Strasbourg , Université de Strasbourg , F-67412 Illkirch , France
| | - Frank Dietsch
- UMR7242 Biotechnologie et Signalisation Cellulaire, Ecole Supérieure de Biotechnologie Strasbourg , Université de Strasbourg , F-67412 Illkirch , France
| | - Laurent Bianchetti
- Department of Integrated Structural Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC) , INSERM U1258, CNRS UMR 7104, Université de Strasbourg , 1 Rue Laurent Fries, BP 10142 , 67404 Illkirch , France
| | - Annick Dejaegere
- Department of Integrated Structural Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC) , INSERM U1258, CNRS UMR 7104, Université de Strasbourg , 1 Rue Laurent Fries, BP 10142 , 67404 Illkirch , France
| | - Yves Nominé
- Department of Integrated Structural Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC) , INSERM U1258, CNRS UMR 7104, Université de Strasbourg , 1 Rue Laurent Fries, BP 10142 , 67404 Illkirch , France
| | - Agnès Cordonnier
- UMR7242 Biotechnologie et Signalisation Cellulaire, Ecole Supérieure de Biotechnologie Strasbourg , Université de Strasbourg , F-67412 Illkirch , France
| | - Guy Zuber
- UMR7242 Biotechnologie et Signalisation Cellulaire, Ecole Supérieure de Biotechnologie Strasbourg , Université de Strasbourg , F-67412 Illkirch , France
| | - Bruno Chatton
- UMR7242 Biotechnologie et Signalisation Cellulaire, Ecole Supérieure de Biotechnologie Strasbourg , Université de Strasbourg , F-67412 Illkirch , France
| | - Mariel Donzeau
- UMR7242 Biotechnologie et Signalisation Cellulaire, Ecole Supérieure de Biotechnologie Strasbourg , Université de Strasbourg , F-67412 Illkirch , France
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Qian J, Chen Y, Xu Y, Zhang X, Kang Z, Jiao J, Zhao J. Interactional similarities and differences in the protein complex of PCNA and DNA replication factor C between rice and Arabidopsis. BMC PLANT BIOLOGY 2019; 19:257. [PMID: 31200645 PMCID: PMC6570896 DOI: 10.1186/s12870-019-1874-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 06/06/2019] [Indexed: 05/30/2023]
Abstract
BACKGROUND Proliferating cell nuclear antigen (PCNA), a conserved trimeric ring complex, is loaded onto replication fork through a hetero-pentameric AAA+ ATPase complex termed replication factor C (RFC) to maintain genome stability. Although architectures of PCNA-RFC complex in yeast have been revealed, the functions of PCNA and protein-protein interactions of PCNA-RFC complex in higher plants are not very clear. Here, essential regions mediating interactions between PCNA and RFC subunits in Arabidopsis and rice were investigated via yeast-two-hybrid method and bimolecular fluorescence complementation techniques. RESULTS We observed that OsPCNA could interact with all OsRFC subunits, while protein-protein interactions only exist between Arabidopsis RFC2/3/4/5 and AtPCNA1/2. The truncated analyses indicated that the C-terminal of Arabidopsis RFC2/3/4/5 and rice RFC1/2 is essential for binding PCNA while the region of rice RFC3/4/5 mediating interaction with PCNA distributed both at the N- and C-terminal. On the other hand, we found that the C- and N-terminal of Arabidopsis and rice PCNA contribute equally to PCNA-PCNA interaction, and the interdomain connecting loop (IDCL) domain and C-terminal of PCNAs are indispensable for interacting RFC subunits. CONCLUSIONS These results indicated that Arabidopsis and rice PCNAs are highly conserved in sequence, structure and pattern of interacting with other PCNA monomer. Nevertheless, there are also significant differences between the Arabidopsis and rice RFC subunits in binding PCNA. Taken together, our results could be helpful for revealing the biological functions of plant RFC-PCNA complex.
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Affiliation(s)
- Jie Qian
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Yueyue Chen
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Yaxing Xu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Xiufeng Zhang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zhuang Kang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Jinxia Jiao
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Jie Zhao
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China.
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Wan R, Luan Y, Wu Z, Deng S, Peng M, Xu L, Wu Y, Qin X, Fan G. The target therapeutic effect of functionalized graphene oxide nanoparticles graphene oxide–polyethylene glycol–folic acid-1–pyrenemethylamine hydrochloride-mediated RNA interference of HIF-1α gene in human pancreatic cancer cells. J Biomater Appl 2019; 34:155-177. [PMID: 31079557 DOI: 10.1177/0885328219847019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Renming Wan
- Department of Clinical Laboratory, Changzhou Second People’s Hospital, Nanjing Medical University, Changzhou, China
| | - Yufen Luan
- Department of Nuclear Medicine, Changzhou Second People’s Hospital, Nanjing Medical University, Changzhou, China
| | - Zhouquan Wu
- Department of Anesthesia, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Shengming Deng
- Department of Nuclear Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Mingya Peng
- Department of Nuclear Medicine, Changzhou Second People’s Hospital, Nanjing Medical University, Changzhou, China
| | - Longbao Xu
- Department of Nuclear Medicine, Changzhou Second People’s Hospital, Nanjing Medical University, Changzhou, China
| | - Yiwei Wu
- Department of Nuclear Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xihu Qin
- Department of General Surgery, Changzhou Second People’s Hospital, Nanjing Medical University, Changzhou, China
| | - Guanglei Fan
- Department of Nuclear Medicine, Changzhou Second People’s Hospital, Nanjing Medical University, Changzhou, China
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125
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Di Vito C, Mikulak J, Zaghi E, Pesce S, Marcenaro E, Mavilio D. NK cells to cure cancer. Semin Immunol 2019; 41:101272. [PMID: 31085114 DOI: 10.1016/j.smim.2019.03.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 12/12/2022]
Abstract
Natural Killer (NK) cells are innate lymphocytes able to mediate immune-surveillance and clearance of viral infected and tumor-transformed cells. Growing experimental and clinical evidence highlighted a dual role of NK cells either in the control of cancer development/progression or in promoting the onset of immune-suppressant tumor microenvironments. Indeed, several mechanisms of NK cell-mediated tumor escape have been described and these includes cancer-induced aberrant expression of activating and inhibitory receptors (i.e. NK cell immune checkpoints), impairments of NK cell migration to tumor sites and altered NK cell effector-functions. These phenomena highly contribute to tumor progression and metastasis formation. In this review, we discuss the latest insights on those NK cell receptors and related molecules that are currently being implemented in clinics either as possible prognostic factors or therapeutic targets to unleash NK cell anti-tumor effector-functions in vivo. Moreover, we address here the major recent advances in regard to the genetic modification and ex vivo expansion of anti-tumor specific NK cells used in innovative adoptive cellular transfer approaches.
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Affiliation(s)
- Clara Di Vito
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Joanna Mikulak
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Italy
| | - Elisa Zaghi
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Silvia Pesce
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Emanuela Marcenaro
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy; Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy.
| | - Domenico Mavilio
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Italy.
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126
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Zhu M, Zheng Z, Huang J, Ma X, Huang C, Wu R, Li X, Liang Z, Deng F, Wu J, Geng S, Xie C, Zhong C. Modulation of miR-34a in curcumin-induced antiproliferation of prostate cancer cells. J Cell Biochem 2019; 120:15616-15624. [PMID: 31042325 DOI: 10.1002/jcb.28828] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 01/16/2019] [Accepted: 01/24/2019] [Indexed: 01/21/2023]
Abstract
Curcumin is a phytochemical which exhibits significant inhibitory effect in multiple cancers including prostate cancer. MicroRNA-34a (miR-34a) was found to be a master tumor suppressor miRNA and regulated the growth of cancer cells. To date, however, the role of miR-34a in the anticancer action of curcumin against prostate cancer has been rarely reported. In the present study, we showed that curcumin altered the expression of cell cycle-related genes (cyclin D1, PCNA, and p21) and inhibited the proliferation of prostate cancer cells. Furthermore, we found that curcumin significantly upregulated the expression of miR-34a, along with the downregulated expression of β-catenin and c-myc in three prostate cancer cell lines. Inhibition of miR-34a activated β-catenin/c-myc axis, altered cell cycle-related genes expression and significantly suppressed the antiproliferation effect of curcumin in prostate cancer cells. Findings from this study revealed that miR-34a plays an important role in the antiproliferation effect of curcumin in prostate cancer.
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Affiliation(s)
- Mingming Zhu
- Department of Nutrition, the Second School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zongmei Zheng
- Department of Nutrition, the Second School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jiaming Huang
- Department of Nutrition, the Second School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiao Ma
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Cong Huang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Rui Wu
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiaoting Li
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhaofeng Liang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Feifei Deng
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jieshu Wu
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Shanshan Geng
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chunfeng Xie
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Caiyun Zhong
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
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127
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Tang Q, Zhang M, Hong Z, Chen Y, Wang P, Wang J, Wang Z, Fang R, Jin M. Effects of astragalus injection on different stages of early hepatocarcinogenesis in a two-stage hepatocarcinogenesis model using rats. J Toxicol Pathol 2019; 32:155-164. [PMID: 31402807 PMCID: PMC6682553 DOI: 10.1293/tox.2019-0006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 03/12/2019] [Indexed: 12/18/2022] Open
Abstract
To clarify the suppressive effects of astragalus injection (AI) on different stages of
early hepatocarcinogenesis induced by weak promotion, SD rats initiated with a single
intraperitoneal (i.p.) injection of N-diethylnitrosamine (DEN) at 200
mg/kg body weight and promoted with 0.5% piperonyl butoxide (PBO) in diet were repeatedly
administered AI at 5 ml/kg body weight/day in the early postinitiation (EPI) or late
postinitiation (LPI) period for 2 or 8 weeks, respectively. The number and area of
glutathione S-transferase placental form (GST-P)-immunoreactive
(+) foci tended to increase in the DEN+PBO group compared with the DEN-alone
group. Among the PBO-promoted groups, number and area of GST-P+ foci did not
visibly change in the DEN+PBO+AI-EPI group compared with the DEN+PBO group. In contrast,
number and area of GST-P+ foci tended to decrease in the DEN+PBO+AI-LPI group
compared with the DEN+PBO group. Number of Ki67+ cells was increased in the
DEN+PBO group compared with the DEN-alone group and was decreased in both AI-administered
groups compared with the DEN+PBO group. Gene expression analysis revealed that the
DEN+PBO+AI-LPI group showed increased transcript levels of Ccne1,
Cdkn1b, Rb1, Bax,
Bcl2, Casp3, and Casp9 compared with
the DEN+PBO group; however, the DEN+PBO+AI-EPI group did not show changes in the
transcript levels of any genes examined compared with the DEN+PBO. These results suggest
that AI administration during the LPI period caused weak suppression of
hepatocarcinogenesis under weak promotion with a low PBO dose by the mechanism involving
facilitation of cell cycle suppression causing G1/S arrest and apoptosis via the
mitochondrial pathway. In addition, the results suggest that AI administration during the
EPI period has no effect on weakly promoted hepatocarcinogenesis.
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Affiliation(s)
- Qian Tang
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
| | - Mei Zhang
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
| | - Zexuan Hong
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
| | - Yao Chen
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
| | - Pan Wang
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
| | - Jian Wang
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
| | - Zili Wang
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
| | - Rendong Fang
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
| | - Meilan Jin
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Animal Science and Technology, Southwest University, 1-13-4 Hongyuhuayuan, No. 196 Beinan Road, BeiBei District, Chongqing 400700, P.R. China
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Squadrone S, Brizio P, Stella C, Mantia M, Battuello M, Nurra N, Sartor RM, Orusa R, Robetto S, Brusa F, Mogliotti P, Garrone A, Abete MC. Rare earth elements in marine and terrestrial matrices of Northwestern Italy: Implications for food safety and human health. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 660:1383-1391. [PMID: 30743932 DOI: 10.1016/j.scitotenv.2019.01.112] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Rare earth elements (REEs) are central in several critical technologies; their use is constantly increasing as is their release into the environment. For this reason, it is important to investigate REE concentrations in different matrices to evaluate human exposure and environmental risk of these emerging contaminants. REEs were measured by ICP-MS in matrices of terrestrial (plant feed, fruit, honey, wildlife livers) and marine origin (seaweeds, zooplankton, bivalves, fish) collected from Northwestern Italy. Highest REE concentrations were measured at low trophic levels, both in terrestrial and marine environments, such as plants (ΣREE 1.8 mg kg-1) and seaweed (ΣREE 12 mg kg-1), the major source of exposure and transfer of REEs to food webs. REE concentrations were several orders of magnitude lower in fruit, honey, and livers from terrestrial wildlife, suggesting a negligible risk of exposure by these matrices. Marine biota, such as bivalves (ΣREE 0.16 mg kg-1) and fish (ΣREE 0.21 mg kg-1) may constitute a pathway for human or animal dietary exposure. The study confirmed that REEs have low potential for biomagnification, but instead are subject to trophic dilution. However, given the numerous sources of dietary introduction of REEs, they should be monitored for a possible harmful cumulative effect. Owing to the scarcity of data regarding REEs worldwide, our results contribute to assessment of the occurrence of these emerging contaminants.
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Affiliation(s)
- Stefania Squadrone
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy.
| | - Paola Brizio
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy
| | - Caterina Stella
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy
| | - Martino Mantia
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy
| | - Marco Battuello
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123 Turin, Italy; Pelagosphera Scarl, Via Umberto Cosmo 17 bis, 10131 Turin, Italy
| | - Nicola Nurra
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123 Turin, Italy; Pelagosphera Scarl, Via Umberto Cosmo 17 bis, 10131 Turin, Italy
| | - Rocco Mussat Sartor
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123 Turin, Italy; Pelagosphera Scarl, Via Umberto Cosmo 17 bis, 10131 Turin, Italy
| | - Riccardo Orusa
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy; National Reference Centre for Wildlife Diseases, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Aosta, Italy
| | - Serena Robetto
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy; National Reference Centre for Wildlife Diseases, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Aosta, Italy
| | - Fulvio Brusa
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy; Regional Reference Centre for Bees, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Asti, Italy
| | - Paola Mogliotti
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy; Regional Reference Centre for Bees, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Asti, Italy
| | - Annalisa Garrone
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy; Regional Reference Centre for Bees, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Asti, Italy
| | - Maria Cesarina Abete
- Chemistry Department, CReAA, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy
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Sirotkin AV, Adamcova E, Rotili D, Mai A, Mlyncek M, Mansour L, Alwasel S, Harrath AH. Comparison of the effects of synthetic and plant-derived mTOR regulators on healthy human ovarian cells. Eur J Pharmacol 2019; 854:70-78. [PMID: 30959047 DOI: 10.1016/j.ejphar.2019.03.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/26/2019] [Accepted: 03/26/2019] [Indexed: 01/10/2023]
Abstract
The aim of the present in vitro study was to compare the effects of synthetic and plant-derived mTOR regulators on healthy human ovarian cells. We compared the effect of two synthetic mammalian mTOR blockers MC2141 and MC2183 with that of natural/plant-derived mTOR blocker rapamycin and mTOR activator resveratrol on cultured human ovarian granulosa cells. We evaluated the accumulation of markers for the mTOR system (sirtuin 1; SIRT 1), proliferation (PCNA), and apoptosis (caspase 3) along with the expression of the transcription factor p53 by quantitative immunocytochemistry. It was observed that MC2183 but not MC2141 or rapamycin reduced SIRT 1 accumulation. MC2141, MC2183, and rapamycin inhibited the accumulation of PCNA, caspase 3, and p53. On the contrary, resveratrol promoted the accumulation of SIRT-1, PCNA, caspase 3, and p53. We have demonstrated the involvement of the mTOR system in the regulation of healthy human ovarian cell proliferation and apoptosis for the first time and indicated that the action of mTOR regulators on ovarian cell apoptosis can be mediated by p53. We have further shown that mTOR regulators can affect ovarian functions without any changes in SIRT-1 accumulation and that the stimulatory effects of resveratrol on analyzed ovarian cell functions are opposite to the inhibitory effects of rapamycin and synthetic mTOR blockers.
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Affiliation(s)
- Alexander V Sirotkin
- Constantine the Philosopher University in Nitra, 949 74, Nitra, Slovakia; Research Institute of Animal Production Nitra, 949 59, Lužianky, Slovakia; King Saud University, Department of Zoology, College of Science, Riyadh, 11451, Saudi Arabia.
| | - Erika Adamcova
- Constantine the Philosopher University in Nitra, 949 74, Nitra, Slovakia
| | - Dante Rotili
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, 00185, Rome, Italy
| | - Antonello Mai
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, 00185, Rome, Italy; Pasteur Institute, Cenci-Bolognetti Foundation, Sapienza University of Rome, 00185, Rome, Italy
| | - Milos Mlyncek
- Constantine the Philosopher University in Nitra, 949 74, Nitra, Slovakia; Faculty Hospital in Nitra, 949 01, Nitra, Slovakia
| | - Lamjed Mansour
- King Saud University, Department of Zoology, College of Science, Riyadh, 11451, Saudi Arabia
| | - Saleh Alwasel
- King Saud University, Department of Zoology, College of Science, Riyadh, 11451, Saudi Arabia
| | - Abdel Halim Harrath
- King Saud University, Department of Zoology, College of Science, Riyadh, 11451, Saudi Arabia
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130
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Apoptosis signal-regulating kinase (ASK1) and transcription factor tumor suppressor protein TP53 suppress rabbit ovarian granulosa cell functions. Anim Reprod Sci 2019; 204:140-151. [PMID: 30948244 DOI: 10.1016/j.anireprosci.2019.03.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/01/2019] [Accepted: 03/26/2019] [Indexed: 11/23/2022]
Abstract
This study was conducted with the aim to understand the roles of apoptosis signal-regulating kinase (ASK1) and transcription factor tumor suppressor protein TP53, as well as the possible interrelationships, in the control of healthy ovarian cell functions. Rabbit ovarian granulosa cells were transfected with constructs encoding ASK1, TP53, or TP53 + ASK1 and cultured with or without insulin-like growth factor 1 (IGF1). The accumulation of ASK1, the cytoplasmic apoptosis regulators BAX and BCL2, and proliferating cell nuclear antigen (PCNA, a cell proliferation marker), as well as progesterone release, were evaluated by quantitative immunocytochemistry and radioimmunoassay. Results indicate both ASK1 and TP53 promoted the accumulation of BAX, but suppressed that of BCL2 and PCNA. Progesterone release was inhibited by ASK1 and promoted by TP53, while TP53 also stimulated ASK1 accumulation. Additionally, IGF1 stimulated PCNA and reduced progesterone release, but did not affect ASK1. Transfection with ASK1, TP53, or TP53 + ASK1 could modify IGF1 activity, however, there was no cumulative effect with co-transfection of TP53 and ASK1. This is the first results that indicate there is ASK1 suppression of healthy ovarian granulosa cell functions, including promoting apoptosis, inhibiting proliferation, and alter progesterone release. There was also TP53 actions in rabbit ovarian granulosa cells, where it stimulated ASK1, apoptosis, and progesterone release, thus suppressing proliferation and responses to IGF1. The similarity of ASK1 and TP53 effects on apoptosis and proliferation, lack of cumulative action of these molecules, and capacity of TP53 to promote ASK1 accumulation suggest that TP53 can suppress some ovarian granulosa cell functions through ASK1 stimulation.
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131
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Li JX, Wei CY, Cao SG, Xia MW. Elevated nuclear auto-antigenic sperm protein promotes melanoma progression by inducing cell proliferation. Onco Targets Ther 2019; 12:2105-2113. [PMID: 30962692 PMCID: PMC6433116 DOI: 10.2147/ott.s197813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Nuclear auto-antigenic sperm protein (NASP) has been implicated in tumorigenesis. However, its role in melanoma is still unclear. Materials and methods In the present study, we detected the mRNA and protein level of NASP in melanoma cell lines and tissues. Then the role of NASP was investigated by transfecting with NASP siRNAs. Finally, the prognosis of NASP was analyzed in 100 melanoma patients through Cox regression and Kaplan-Meier analyses. Results We showed that NASP was significantly overexpressed in melanoma tissues, and unregulated NASP promoted melanoma cell proliferation via promoting cell cycle G1/S phase transition. Additionally, the expression of NASP was closely related to proliferating cell nuclear antigen, a widely accepted biomarker for cell proliferation. Clinically, we found that a high level of NASP predicated poor overall survival and high cumulative recurrence rates. Multivariate analysis revealed that NASP was a risk biomarker for predicting the prognosis of melanoma patients. Conclusion Elevated NASP plays an important role in melanoma cell proliferation and tumor progression, and it can be used as an independent prognostic biomarker for melanoma patients.
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Affiliation(s)
- Jia-Xia Li
- Department of Neurology, Hefei Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230000, People's Republic of China,
| | - Chuan-Yuan Wei
- Department of Plastic Surgery, Fudan University, Shanghai 200032, People's Republic of China
| | - Shu-Gang Cao
- Department of Neurology, Hefei Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230000, People's Republic of China,
| | - Ming-Wu Xia
- Department of Neurology, Hefei Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230000, People's Republic of China,
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132
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Chao HH, Li L, Gao X, Wang C, Yue W. CXCL12 expression in aborted mouse uteri induced by IFN-γ: Potential anti-inflammatory effect involves in endometrial restoration after abortion in mice. Gene 2019; 700:38-46. [PMID: 30898705 DOI: 10.1016/j.gene.2019.02.089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 02/14/2019] [Accepted: 02/26/2019] [Indexed: 02/08/2023]
Abstract
Anti-inflammation is a key process to restore tissue integrity and function. CXCL12 is a homeostasis chemokine, which plays a coordinating role in organogenesis, tumorigenesis and regeneration. In the present study we found that the uterus of abortion mice showed different histo-morphological changes with the development of abortion. The expression of chemokine CXCL12 and its receptor CXCR4 in abortion uterus showed a time-dependent pattern. Compared with normal pregnancy, the expression of CXCL12 and CXCR4 did not change in the uterus of GD7 abortion mice, but increased significantly in the uterus of GD8 and GD10 abortion mice. However, the expression of IFN-γ increased significantly in the uterus of GD7 abortion mice, while there was no significant change detected in GD8 aborted mice uterus. Our further data show that the expression of CXCL12 is not regulated by IFN-γ in endometrial stromal cell culture system in vitro. The treatment of CXCL12 significantly inhibits the expression of IFN-γ in in vitro cultured stromal cells and splenic monocytes. This suggests that CXCL12 may play an anti-inflammatory role in the uterus of abortion mice to promote the process of endometrial restoration after abortion, rather than participate in the process of abortion as a response molecule of IFN-γ.
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Affiliation(s)
- Hu-He Chao
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China.
| | - Lin Li
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China
| | - Xiao Gao
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China
| | - Chengrong Wang
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China
| | - Wentao Yue
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China.
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Kiliç V. Piceatannol Mediated Modulation of Oxidative Stress and Regeneration in the Liver of Endotoxemic Mice. J Med Food 2019; 22:594-601. [PMID: 30874461 DOI: 10.1089/jmf.2018.0201] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Liver plays a pivotal role in host defense mechanisms related to endotoxemia. However, liver dysfunction often occurs in early sepsis. This study investigated the hepatoprotective potential of natural stilbenoid piceatannol (PIC) in lipopolysaccharide (LPS)-induced endotoxemic mice. Swiss Albino mice were divided into four groups: Control (C), LPS administrated (LPS), PIC administrated (PIC), and LPS administrated/PIC preadministrated (LPS+PIC) animals. PIC was administrated intraperitoneally (i.p.) at the dose of 4 mg/kg/day during 7 days. Endotoxemia was induced with a single i.p. administration of LPS at the dose of 4 mg/kg. Superoxide dismutase (SOD), catalase (CAT) and lipid peroxidation (LP) levels, light microscopic pathology, and genotoxicity were investigated. Proliferating cell nuclear antigen and SQSTM1/p62 immunofluorescence were measured. PIC preadministration restored SOD activity, reduced LP and genotoxicity. However, moderate level of oxidative stress (OS) had been progressed in PIC preadministrated animals depending upon prolonged autophagic response and selective degradation of CAT. Positive OS stimulated liver regeneration by upregulating oval cells' and downregulating hepatocytes' proliferation and resulted in the maintanence of hepatic tissue integrity in PIC preadministrated animals. These results suggested that PIC may be a useful hepatoprotective agent in LPS-induced endotoxemia as a modulator of OS and genotoxicity, as an inducer of autophagy, and as a promoter of liver regeneration.
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Affiliation(s)
- Volkan Kiliç
- Department of Biology, Faculty of Science, Eskişehir Technical University, Eskişehir, Turkey
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134
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Sirotkin AV, Benčo A, Mlynček M, Harrath AH, Alwasel S, Kotwica J. The involvement of the phosphorylatable and nonphosphorylatable transcription factor CREB-1 in the control of human ovarian cell functions. C R Biol 2019; 342:90-96. [DOI: 10.1016/j.crvi.2019.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 12/20/2022]
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135
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Jiangqiao Z, Tao Q, Zhongbao C, Xiaoxiong M, Long Z, Jilin Z, Tianyu W. Anti-silencing function 1B histone chaperone promotes cell proliferation and migration via activation of the AKT pathway in clear cell renal cell carcinoma. Biochem Biophys Res Commun 2019; 511:165-172. [PMID: 30777326 DOI: 10.1016/j.bbrc.2019.02.060] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 02/11/2019] [Indexed: 12/11/2022]
Abstract
Clear cell renal cell carcinoma (ccRCC) is one of the most common malignancies. Anti-silencing function 1B histone chaperone (ASF1B) has been reported to be involved in various diseases. However, its role in ccRCC is largely unknown. In the present study, using genetic data and clinical information obtained from the TCGA data portal and GEO database, we found that ASF1B was highly expressed in ccRCC cancer tissue compared with normal tissue, and ASF1B expression was positively correlated with tumor stage, tumor grade and patient survival. The function of ASF1B in cell proliferation and migration was assessed by pathological and molecular analyses. The results showed that ASF1B overexpression significantly enhanced the proliferation and migration of 786-O cells and Caki-1 cells, while silencing ASF1B expression significantly inhibited the proliferation and migration. In addition, ASF1B overexpression enhanced cell proliferation by upregulating PCNA and downregulating P27 expression and promoted cell migration by upregulating MMP2 and MMP9. Furthermore, the phosphorylation levels of protein kinase B (AKT) and P-P70 S6K1 were significantly upregulated in the ASF1B overexpression group. More importantly, AKT inhibitor blocked the promotional effect of ASF1B on proliferation and migration. In summary, the present study demonstrated that ASF1B overexpression promoted tumor cell proliferation and migration, which was dependent on the AKT/P70 S6K1 pathway.
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Affiliation(s)
- Zhou Jiangqiao
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, China
| | - Qiu Tao
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, China.
| | - Chen Zhongbao
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, China
| | - Ma Xiaoxiong
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, China
| | - Zhang Long
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, China
| | - Zou Jilin
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, China
| | - Wang Tianyu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, China
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136
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AKT inhibition impairs PCNA ubiquitylation and triggers synthetic lethality in homologous recombination-deficient cells submitted to replication stress. Oncogene 2019; 38:4310-4324. [PMID: 30705406 PMCID: PMC6756059 DOI: 10.1038/s41388-019-0724-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 12/12/2018] [Accepted: 01/03/2019] [Indexed: 01/01/2023]
Abstract
Translesion DNA synthesis (TLS) and homologous recombination (HR) cooperate during S-phase to safeguard replication forks integrity. Thus, the inhibition of TLS becomes a promising point of therapeutic intervention in HR-deficient cancers, where TLS impairment might trigger synthetic lethality (SL). The main limitation to test this hypothesis is the current lack of selective pharmacological inhibitors of TLS. Herein, we developed a miniaturized screening assay to identify inhibitors of PCNA ubiquitylation, a key post-translational modification required for efficient TLS activation. After screening a library of 627 kinase inhibitors, we found that targeting the pro-survival kinase AKT leads to strong impairment of PCNA ubiquitylation. Mechanistically, we found that AKT-mediated modulation of Proliferating Cell Nuclear Antigen (PCNA) ubiquitylation after UV requires the upstream activity of DNA PKcs, without affecting PCNA ubiquitylation levels in unperturbed cells. Moreover, we confirmed that persistent AKT inhibition blocks the recruitment of TLS polymerases to sites of DNA damage and impairs DNA replication forks processivity after UV irradiation, leading to increased DNA replication stress and cell death. Remarkably, when we compared the differential survival of HR-proficient vs HR-deficient cells, we found that the combination of UV irradiation and AKT inhibition leads to robust SL induction in HR-deficient cells. We link this phenotype to AKT ability to inhibit PCNA ubiquitylation, since the targeted knockdown of PCNA E3-ligase (RAD18) and a non-ubiquitylable (PCNA K164R) knock-in model recapitulate the observed SL induction. Collectively, this work identifies AKT as a novel regulator of PCNA ubiquitylation and provides the proof-of-concept of inhibiting TLS as a therapeutic approach to selectively kill HR-deficient cells submitted to replication stress.
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137
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Li P, Wang Q, Wang H. MicroRNA-204 inhibits the proliferation, migration and invasion of human lung cancer cells by targeting PCNA-1 and inhibits tumor growth in vivo. Int J Mol Med 2018; 43:1149-1156. [PMID: 30628638 PMCID: PMC6365052 DOI: 10.3892/ijmm.2018.4044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/28/2018] [Indexed: 01/10/2023] Open
Abstract
Lung cancer accounts for ~20% of the total cancer-associated mortalities worldwide. Lung cancer is often diagnosed at advanced stages and is therefore difficult to treat. The biomarkers for diagnosis of lung cancer are limited and unreliable. In addition, the lack of availability of efficient chemotherapeutic agents and targets has resulted in limitations in the successful treatment of lung cancer. Previously, microRNAs (miRNA/miR) have been implicated in the onset and development of several types of cancer. The expression of miRNAs is often dysregulated in cancer cells; therefore, they are considered important therapeutic targets and agents. The present study examined the expression of miR-204 in 4 different lung cancer cell lines and 1 normal cell line. The results revealed that miR-204 was significantly downregulated (4–8-fold) in all the cancer cell lines (P<0.05). Overexpression of miR-204 in A549 lung cancer cells inhibited the proliferative, migratory and invasive capabilities of the lung cancer cells. Furthermore, miR-204 overexpression also induced apoptosis in the A549 lung cancer cells. Bioinformatics analysis revealed proliferating cell nuclear antigen 1 (PCNA-1) to be a potential target of miR-204. The reverse transcription quantitative polymerase chain reaction analysis revealed that PCNA-1 was significantly upregulated (up to 5-fold) in the lung cancer cells (P<0.05), and the over-expression of miR-204 caused the downregulation of PCNA-1 in A549 lung cancer cells. Silencing of PCNA-1 in A549 cells exerted similar effects to that of miR-204 overexpression on the proliferative, migratory and invasive capabilities of A549 lung cancer cells. Additionally, the suppression of miR-204 in A549 cells transfected with Si-PCNA-1 did not rescue the effects of PCNA-1 silencing on cell proliferation, migration or invasion. Conversely, the overexpression of PCNA-1 in A549 cells transfected with miR-204 mimics promoted the proliferation, migration and invasion of lung cancer cells. Furthermore, overexpression of miR-204 in xenograft tumors significantly inhibited their growth. Taken together, these results indicated that miR-204 regulates the proliferative, migratory and invasive capabilities of lung cancer cells by targeting PCNA-1.
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Affiliation(s)
- Ping Li
- Department of Thoracic Surgery, Shengli Oilfield Central Hospital, Dongying, Shandong 257034, P.R. China
| | - Qingan Wang
- Department of Thoracic Surgery, Shengli Oilfield Central Hospital, Dongying, Shandong 257034, P.R. China
| | - Haining Wang
- Department of Thoracic Surgery, Shengli Oilfield Central Hospital, Dongying, Shandong 257034, P.R. China
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138
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Guo X, Zhang D, Zhang X, Jiang J, Xue P, Wu C, Zhang J, Jin G, Huang Z, Yang J, Zhu X, Liu W, Xu G, Cui Z, Bao G. Dyrk1A promotes the proliferation, migration and invasion of fibroblast-like synoviocytes in rheumatoid arthritis via down-regulating Spry2 and activating the ERK MAPK pathway. Tissue Cell 2018; 55:63-70. [PMID: 30503061 DOI: 10.1016/j.tice.2018.10.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/09/2018] [Accepted: 10/20/2018] [Indexed: 12/11/2022]
Abstract
Fibroblast-like synoviocytes (FLSs) play an essential role in rheumatoid arthritis (RA) by promoting synovitis, pannus growth and cartilage/bone destruction. Increased proliferation, migration and invasion of FLSs greatly contribute to RA initiation and progression. Dual-specificity tyrosine-regulated kinase 1A (Dyrk1A), a serine/threonine kinase, regulates MAPK pathway activation, and governs the proliferation and differentiation of neuronal progenitor cells and cancer cells. Till now, the expression and possible function of Dyrk1A in RA FLSs have not been explored. In this study, we detected an increased expression of Dyrk1A both in the synovial tissues of RA patients and in a TNF-α-induced FLSs activation model. CCK-8 and Edu assays revealed that Dyrk1A knockdown inhibited TNF-α-induced FLSs proliferation. Moreover, inhibiting Dyrk1A expression apparently prevented the migration and invasion capability of FLSs accompanied by a decreased MMP-3 and -9 expression. To investigate the molecular mechanism through which Dyrk1A modulates FLSs activities, we evaluated the effects of Dyrk1A on Spry2, a negativity modulator of ERK MAPK pathway. Western blot assay demonstrated that Dyrk1A silencing significantly increased Spry2 expression and suppressed the phosphorylation of ERK in TNF-α-treated FLSs. Taken together, our results indicated that Dyrk1A might promote FLSs proliferation, migration and invasion by suppressing Spry2 expression and activating the ERK MAPK signaling pathway in RA.
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Affiliation(s)
- Xiaofeng Guo
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Dongmei Zhang
- Clinical Medical Research Center, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Xing Zhang
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Jiawei Jiang
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Pengfei Xue
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Chunshuai Wu
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Jinlong Zhang
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Guohua Jin
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, Jiangsu Province 226001, China
| | - Zhen Huang
- Department of Anatomy and Neurobiology, The Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, Jiangsu Province 226001, China
| | - Jian Yang
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Xinhui Zhu
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Wei Liu
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Guanhua Xu
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Zhiming Cui
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China.
| | - Guofeng Bao
- Department of Orthopedic, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China.
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139
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Palko-Łabuz A, Środa-Pomianek K, Wesołowska O, Kostrzewa-Susłow E, Uryga A, Michalak K. MDR reversal and pro-apoptotic effects of statins and statins combined with flavonoids in colon cancer cells. Biomed Pharmacother 2018; 109:1511-1522. [PMID: 30551403 DOI: 10.1016/j.biopha.2018.10.169] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/22/2018] [Accepted: 10/30/2018] [Indexed: 12/19/2022] Open
Abstract
The resistance of cancer cells to a variety of structurally non-related cytotoxic drugs is known as multidrug resistance phenomenon (MDR). In cellular membranes an activity of MDR transporters such as P-glycoprotein (ABCB1) is affected by their lipid environment. Many various compounds have been examined for their ability to restore drug-sensitivity of resistant cancer cells. Statins, inhibitors of the key enzyme of mevalonate pathway HMG-CoA (3-hydroxy-3-methyl-glutaryl-coenzyme A) reductase are drugs commonly prescribed in order to reduce serum level of cholesterol and to diminish the risk of cardiovascular disease. Statins as drugs that influence lipid composition of cell membrane and in that way they also exert influence on lipid bilayer properties appear to be good candidates as MDR modulators. In this work it was shown that statins - mevastatin and simvastatin exert antiproliferative, pro-apoptotic and reversing drug resistance effect in human colon adenocarcinoma cell line LoVo and its drug-resistant subline LoVo/Dx. A hypothesis was also checked whether flavones, which as it is well known are able to influence the biosynthesis of cholesterol, may change the anticancer activity of statins. Our investigations have revealed that combined use of statins and studied flavonoids results in enhanced cell growth inhibition and apoptosis and lower cancer cell proliferation as compared to the application only statins alone. Moreover, in drug resistant LoVo/Dx cells a stronger decrease of resistance to doxorubicine was observed in the presence of statins in combination with flavones as compared to the effect observed for statins only.
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Affiliation(s)
- Anna Palko-Łabuz
- Department of Biophysics, Wroclaw Medical University, Chalubinskiego 10, 50-368, Wroclaw, Poland.
| | - Kamila Środa-Pomianek
- Department of Biophysics, Wroclaw Medical University, Chalubinskiego 10, 50-368, Wroclaw, Poland
| | - Olga Wesołowska
- Department of Biophysics, Wroclaw Medical University, Chalubinskiego 10, 50-368, Wroclaw, Poland
| | - Edyta Kostrzewa-Susłow
- Department of Chemistry, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375, Wroclaw, Poland
| | - Anna Uryga
- Department of Biophysics, Wroclaw Medical University, Chalubinskiego 10, 50-368, Wroclaw, Poland
| | - Krystyna Michalak
- Department of Biophysics, Wroclaw Medical University, Chalubinskiego 10, 50-368, Wroclaw, Poland
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140
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Wei CY, Zhu MX, Lu NH, Peng R, Yang X, Zhang PF, Wang L, Gu JY. Bioinformatics-based analysis reveals elevated MFSD12 as a key promoter of cell proliferation and a potential therapeutic target in melanoma. Oncogene 2018; 38:1876-1891. [PMID: 30385854 PMCID: PMC6462865 DOI: 10.1038/s41388-018-0531-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 07/30/2018] [Accepted: 09/10/2018] [Indexed: 12/22/2022]
Abstract
Although recent therapeutic advances based on our understanding of molecular phenomena have prolonged the survival of melanoma patients, the prognosis of melanoma remains dismal and further understanding of the underlying mechanism of melanoma progression is needed. In this study, differential expression analyses revealed that many genes, including AKT1 and CDK2, play important roles in melanoma. Functional analyses of differentially expressed genes (DEGs), obtained from the GEO (Gene Expression Omnibus) database, indicated that high proliferative and metastatic abilities are the main characteristics of melanoma and that the PI3K and MAPK pathways play essential roles in melanoma progression. Among these DEGs, major facilitator superfamily domain-containing 12 (MFSD12) was found to have significantly and specifically upregulated expression in melanoma, and elevated MFSD12 level promoted cell proliferation by promoting cell cycle progression. Mechanistically, MFSD12 upregulation was found to activate PI3K signaling, and a PI3K inhibitor reversed the increase in cell proliferation endowed by MFSD12 upregulation. Clinically, high MFSD12 expression was positively associated with shorter overall survival (OS) and disease-free survival (DFS) in melanoma patients, and MFSD12 was an independent prognostic factor for OS and DFS in melanoma patients. Therapeutically, in vivo assays further confirmed that MFSD12 interference inhibited tumor growth and lung metastasis in melanoma. In conclusion, elevated MFSD12 expression promotes melanoma cell proliferation, and MFSD12 is a valuable prognostic biomarker and promising therapeutic target in melanoma.
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Affiliation(s)
- Chuan-Yuan Wei
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China.,Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, 200032, People's Republic of China
| | - Meng-Xuan Zhu
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, 200032, People's Republic of China
| | - Nan-Hang Lu
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Rui Peng
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, 200032, People's Republic of China
| | - Xuan Yang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, 200032, People's Republic of China
| | - Peng-Fei Zhang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, 200032, People's Republic of China
| | - Lu Wang
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Jian-Ying Gu
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China.
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141
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Altieri AS, Kelman Z. DNA Sliding Clamps as Therapeutic Targets. Front Mol Biosci 2018; 5:87. [PMID: 30406112 PMCID: PMC6204406 DOI: 10.3389/fmolb.2018.00087] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 09/10/2018] [Indexed: 01/12/2023] Open
Abstract
Chromosomal DNA replication is achieved by an assembly of multi-protein complexes at the replication fork. DNA sliding clamps play an important role in this assembly and are essential for cell viability. Inhibitors of bacterial (β-clamp) and eukaryal DNA clamps, proliferating cell nuclear antigen (PCNA), have been explored for use as antibacterial and anti-cancer drugs, respectively. Inhibitors for bacterial β-clamps include modified peptides, small molecule inhibitors, natural products, and modified non-steroidal anti-inflammatory drugs. Targeting eukaryotic PCNA sliding clamp in its role in replication can be complicated by undesired effects on healthy cells. Some success has been seen in the design of peptide inhibitors, however, other research has focused on targeting PCNA molecules that are modified in diseased states. These inhibitors that are targeted to PCNA involved in DNA repair can sensitize cancer cells to existing anti-cancer therapeutics, and a DNA aptamer has also been shown to inhibit PCNA. In this review, studies in the use of both bacterial and eukaryotic sliding clamps as therapeutic targets are summarized.
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Affiliation(s)
- Amanda S Altieri
- Institute for Bioscience and Biotechnology Research, University of Maryland and the National Institute of Standards and Technology, Rockville, MD, United States
| | - Zvi Kelman
- Institute for Bioscience and Biotechnology Research, University of Maryland and the National Institute of Standards and Technology, Rockville, MD, United States.,Biomolecular Labeling Laboratory, Institute for Bioscience and Biotechnology Research, National Institute of Standards and Technology, Rockville, MD, United States
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142
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Søgaard CK, Blindheim A, Røst LM, Petrović V, Nepal A, Bachke S, Liabakk NB, Gederaas OA, Viset T, Arum CJ, Bruheim P, Otterlei M. "Two hits - one stone"; increased efficacy of cisplatin-based therapies by targeting PCNA's role in both DNA repair and cellular signaling. Oncotarget 2018; 9:32448-32465. [PMID: 30197755 PMCID: PMC6126690 DOI: 10.18632/oncotarget.25963] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/31/2018] [Indexed: 01/08/2023] Open
Abstract
Low response rate and rapid development of resistance against commonly used chemotherapeutic regimes demand new multi-targeting anti-cancer strategies. In this study, we target the stress-related roles of the scaffold protein PCNA with a cell-penetrating peptide containing the PCNA-interacting motif APIM. The APIM-peptide increased the efficacy of cisplatin-based therapies in a muscle-invasive bladder cancer (MIBC) solid tumor model in rat and in bladder cancer (BC) cell lines. By combining multiple omics-levels, from gene expression to proteome/kinome and metabolome, we revealed a unique downregulation of the EGFR/ERBB2 and PI3K/Akt/mTOR pathways in the APIM-peptide-cisplatin combination treated cells. Additionally, the combination treatment reduced the expression of anti-apoptotic proteins and proteins involved in development of resistance to cisplatin. Concurrently, we observed increased levels of DNA breaks in combination treated cells, suggesting that the APIM-peptide impaired PCNA - DNA repair protein interactions and reduced the efficacy of repair. This was also seen in cisplatin-resistant cells, which notably was re-sensitized to cisplatin by the APIM-peptide. Our data indicate that the increased efficacy of cisplatin treatment is mediated both via downregulation of known oncogenic signaling pathways and inhibition of DNA repair/translesion synthesis (TLS), thus the APIM-peptide hits both nuclear and cytosolic functions of PCNA. The novel multi-targeting strategy of the APIM-peptide could potentially improve the efficacy of chemotherapeutic regiments for treatment of MIBC, and likely other solid tumors.
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Affiliation(s)
- Caroline Krogh Søgaard
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.,Clinic of Surgery, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Augun Blindheim
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.,Department of Urology and Surgery, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Lisa M Røst
- Department of Biotechnology and Food Science, NTNU, Trondheim, Norway
| | - Voin Petrović
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Anala Nepal
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Siri Bachke
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Nina-Beate Liabakk
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Odrun A Gederaas
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Trond Viset
- Department of Pathology, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Carl-Jørgen Arum
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.,Department of Urology and Surgery, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Per Bruheim
- Department of Biotechnology and Food Science, NTNU, Trondheim, Norway
| | - Marit Otterlei
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.,Clinic of Surgery, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.,APIM Therapeutics A/S, Trondheim, Norway
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143
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Maneuvers on PCNA Rings during DNA Replication and Repair. Genes (Basel) 2018; 9:genes9080416. [PMID: 30126151 PMCID: PMC6116012 DOI: 10.3390/genes9080416] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 12/20/2022] Open
Abstract
DNA replication and repair are essential cellular processes that ensure genome duplication and safeguard the genome from deleterious mutations. Both processes utilize an abundance of enzymatic functions that need to be tightly regulated to ensure dynamic exchange of DNA replication and repair factors. Proliferating cell nuclear antigen (PCNA) is the major coordinator of faithful and processive replication and DNA repair at replication forks. Post-translational modifications of PCNA, ubiquitination and acetylation in particular, regulate the dynamics of PCNA-protein interactions. Proliferating cell nuclear antigen (PCNA) monoubiquitination elicits ‘polymerase switching’, whereby stalled replicative polymerase is replaced with a specialized polymerase, while PCNA acetylation may reduce the processivity of replicative polymerases to promote homologous recombination-dependent repair. While regulatory functions of PCNA ubiquitination and acetylation have been well established, the regulation of PCNA-binding proteins remains underexplored. Considering the vast number of PCNA-binding proteins, many of which have similar PCNA binding affinities, the question arises as to the regulation of the strength and sequence of their binding to PCNA. Here I provide an overview of post-translational modifications on both PCNA and PCNA-interacting proteins and discuss their relevance for the regulation of the dynamic processes of DNA replication and repair.
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144
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Kucherlapati M. Examining transcriptional changes to DNA replication and repair factors over uveal melanoma subtypes. BMC Cancer 2018; 18:818. [PMID: 30107825 PMCID: PMC6092802 DOI: 10.1186/s12885-018-4705-y] [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: 11/15/2017] [Accepted: 07/30/2018] [Indexed: 12/20/2022] Open
Abstract
Background Uncontrolled replication is a process common to all cancers facilitated by the summation of changes accumulated as tumors progress. The aim of this study was to examine small groups of genes with known biology in replication and repair at the transcriptional and genomic levels, correlating alterations with survival in uveal melanoma tumor progression. Selected components of Pre-Replication, Pre-Initiation, and Replisome Complexes, DNA Damage Response and Mismatch Repair have been observed. Methods Two groups have been generated for selected genes above and below the average alteration level and compared for expression and survival across The Cancer Genome Atlas uveal melanoma subtypes. Significant differences in expression between subtypes monosomic or disomic for chromosome 3 have been identified by Fisher’s exact test. Kaplan Meier survival distribution based on disease specific survival has been compared by Log-rank test. Results Genes with significant alteration include MCM2, MCM4, MCM5, CDC45, MCM10, CIZ1, PCNA, FEN1, LIG1, POLD1, POLE, HUS1, CHECK1, ATRIP, MLH3, and MSH6. Exon 4 skipping in CIZ1 previously identified as a cancer variant, and reportedly used as an early serum biomarker in lung cancer was found. Mismatch Repair protein MLH3 was found to have splicing variations with deletions to both Exon 5 and Exon 7 simultaneously. PCNA, FEN1, and LIG1 had increased relative expression levels not due to mutation or to copy number variation. Conclusion The current study proposes changes in relative and differential expression to replication and repair genes that support the concept their products are causally involved in uveal melanoma. Specific avenues for early biomarker identification and therapeutic approach are suggested.
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Affiliation(s)
- Melanie Kucherlapati
- Department of Genetics, Harvard Medical School, Boston, 02115, MA, USA. .,Department of Medicine, Division of Genetics, Brigham and Women's Hospital, 77 Avenue Louis Pasteur NRB 160B, Boston, 02115, MA, USA.
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145
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Wegener KL, McGrath AE, Dixon NE, Oakley AJ, Scanlon DB, Abell AD, Bruning JB. Rational Design of a 3 10 -Helical PIP-Box Mimetic Targeting PCNA, the Human Sliding Clamp. Chemistry 2018; 24:11325-11331. [PMID: 29917264 DOI: 10.1002/chem.201801734] [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: 04/09/2018] [Revised: 06/17/2018] [Indexed: 12/29/2022]
Abstract
The human sliding clamp (PCNA) controls access to DNA for many proteins involved in DNA replication and repair. Proteins are recruited to the PCNA surface by means of a short, conserved peptide motif known as the PCNA-interacting protein box (PIP-box). Inhibitors of these essential protein-protein interactions may be useful as cancer therapeutics by disrupting DNA replication and repair in these highly proliferative cells. PIP-box peptide mimetics have been identified as a potentially rapid route to potent PCNA inhibitors. Here we describe the rational design and synthesis of the first PCNA peptidomimetic ligands, based on the high affinity PIP-box sequence from the natural PCNA inhibitor p21. These mimetics incorporate covalent i,i+4 side-chain/side-chain lactam linkages of different lengths, designed to constrain the peptides into the 310 -helical structure required for PCNA binding. NMR studies confirmed that while the unmodified p21 peptide had little defined structure in solution, mimetic ACR2 pre-organized into 310 -helical structure prior to interaction with PCNA. ACR2 displayed higher affinity binding than most known PIP-box peptides, and retains the native PCNA binding mode, as observed in the co-crystal structure of ACR2 bound to PCNA. This study offers a promising new strategy for PCNA inhibitor design for use as anti-cancer therapeutics.
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Affiliation(s)
- Kate L Wegener
- Institute for Photonics and Advanced Sensing (IPAS), School of Biological Sciences, The University of Adelaide, South Australia, 5005, Australia
| | - Amy E McGrath
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, NSW, 2522, Australia
| | - Nicholas E Dixon
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, NSW, 2522, Australia
| | - Aaron J Oakley
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, NSW, 2522, Australia
| | - Denis B Scanlon
- Department of Chemistry, The University of Adelaide, South Australia, 5005, Australia
| | - Andrew D Abell
- Institute for Photonics and Advanced Sensing (IPAS), Department of Chemistry, and the Centre for Nanoscale BioPhotonics, The University of Adelaide, South Australia, 5005, Australia
| | - John B Bruning
- Institute for Photonics and Advanced Sensing (IPAS), School of Biological Sciences, The University of Adelaide, South Australia, 5005, Australia
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146
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Li MX, Jin LT, Wang TJ, Feng YJ, Pan CP, Zhao DM, Shao J. Identification of potential core genes in triple negative breast cancer using bioinformatics analysis. Onco Targets Ther 2018; 11:4105-4112. [PMID: 30140156 PMCID: PMC6054764 DOI: 10.2147/ott.s166567] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background Triple-negative breast cancer (TNBC) is a subtype of breast cancer with poor clinical outcome and limited treatment options. Lacking molecular targets, chemotherapy is the main adjuvant treatment for TNBC patients. Materials and methods To explore potential therapeutic targets for TNBC, we analyzed three microarray datasets (GSE38959, GSE45827, and GSE65194) derived from the Gene Expression Omnibus (GEO) database. The GEO2R tool was used to screen out differentially expressed genes (DEGs) between TNBC and normal tissue. Gene Ontology function and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis were performed using the Database for Annotation, Visualization and Integrated Discovery to identify the pathways and functional annotation of DEGs. Protein–protein interaction of these DEGs was analyzed based on the Search Tool for the Retrieval of Interacting Genes database and visualized by Cytoscape software. In addition, we used the online Kaplan–Meier plotter survival analysis tool to evaluate the prognostic value of hub genes expression in breast cancer patients. Results A total of 278 upregulated DEGs and 173 downregulated DEGs were identified. Among them, ten hub genes with a high degree of connectivity were picked out. Overexpression of these hub genes was associated with unfavorable prognosis of breast cancer, especially, CCNB1 overexpression was observed and indicated poor outcome of TNBC. Conclusion Our study suggests that CCNB1 was overexpressed in TNBC compared with normal breast tissue, and overexpression of CCNB1 was an unfavorable prognostic factor of TNBC patients. Further study is needed to explore the value of CCNB1 in the treatment of TNBC.
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Affiliation(s)
- Man-Xiu Li
- Department of Breast Cancer, Hubei Cancer Hospital, Wuhan, People's Republic of China,
| | - Li-Ting Jin
- Department of Breast Cancer, Hubei Cancer Hospital, Wuhan, People's Republic of China,
| | - Tie-Jun Wang
- Department of Breast Cancer, Hubei Cancer Hospital, Wuhan, People's Republic of China,
| | - Yao-Jun Feng
- Department of Breast Cancer, Hubei Cancer Hospital, Wuhan, People's Republic of China,
| | - Cui-Ping Pan
- Department of Breast Cancer, Hubei Cancer Hospital, Wuhan, People's Republic of China,
| | - Dei-Mian Zhao
- Department of Breast Cancer, Hubei Cancer Hospital, Wuhan, People's Republic of China,
| | - Jun Shao
- Department of Breast Cancer, Hubei Cancer Hospital, Wuhan, People's Republic of China,
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147
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Ciebiera M, Włodarczyk M, Ciebiera M, Zaręba K, Łukaszuk K, Jakiel G. Vitamin D and Uterine Fibroids-Review of the Literature and Novel Concepts. Int J Mol Sci 2018; 19:E2051. [PMID: 30011902 PMCID: PMC6073230 DOI: 10.3390/ijms19072051] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/06/2018] [Accepted: 07/12/2018] [Indexed: 02/08/2023] Open
Abstract
This article provides a detailed review of current knowledge on the role of vitamin D and its receptor in the biology and management of uterine fibroids (UFs). Authors present ideas for future steps in this area. A literature search was conducted in PubMed using the following key words: "uterine fibroid" and "vitamin D". The results of the available studies, published in English from January 2002 up to April 2018, have been discussed. Vitamin D is a group of steroid compounds with a powerful impact on many parts of the human body. This vitamin is believed to regulate cell proliferation and differentiation, inhibit angiogenesis, and stimulate apoptosis. Nowadays, hypovitaminosis D is believed to be a major risk factor in the development of UFs. In many studies vitamin D appears to be a powerful factor against UFs, resulting in inhibition of tumor cell division and a significant reduction in its size, however, the exact role of this compound and its receptor in the pathophysiology of UFs is not fully understood. According to available studies, vitamin D and its analogs seem to be promising, effective, and low-cost compounds in the management of UFs and their clinical symptoms, and the anti-tumor activities of vitamin D play an important role in UF biology. The synergy between vitamin D and selected anti-UF drugs is a very interesting issue which requires further research. Further studies about the biological effect of vitamin D on UF biology are essential. Vitamin D preparations (alone or as a co-drugs) could become new tools in the fight with UFs, with the additional beneficial pleiotropic effect.
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Affiliation(s)
- Michał Ciebiera
- Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, 00-416 Warsaw, Poland.
| | - Marta Włodarczyk
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy with Division of Laboratory Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland.
- Center for Preclinical Research, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Magdalena Ciebiera
- Students' Scientific Association at the Department of Obstetrics and Gynecology, Medical University of Warsaw, 02-015 Warsaw, Poland.
| | - Kornelia Zaręba
- Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, 00-416 Warsaw, Poland.
| | - Krzysztof Łukaszuk
- Department of Obstetrics and Gynecological Nursing, Faculty of Health Sciences, Medical University of Gdansk, 80-210 Gdansk, Poland.
- INVICTA Fertility and Reproductive Center, 80-172 Gdansk, Poland.
| | - Grzegorz Jakiel
- Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, 00-416 Warsaw, Poland.
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148
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Fujii K, Miyata Y, Takahashi I, Koizumi H, Saji H, Hoshikawa M, Takagi M, Nishimura T, Nakamura H. Differential Proteomic Analysis between Small Cell Lung Carcinoma (SCLC) and Pulmonary Carcinoid Tumors Reveals Molecular Signatures for Malignancy in Lung Cancer. Proteomics Clin Appl 2018; 12:e1800015. [PMID: 29888431 DOI: 10.1002/prca.201800015] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 05/10/2018] [Indexed: 12/15/2022]
Abstract
PURPOSE The molecular underpinnings that may prognosticate survival and increase our understanding of tumor development and progression are still poorly understood. This study aimed to define the molecular signatures for malignancy in small cell lung carcinoma (SCLC), which is known for its highly aggressive clinical features and poor prognosis. EXPERIMENTAL DESIGN Using clinical specimens, the authors perform a comparative proteomic analysis of high-grade SCLCs and low-grade pulmonary carcinoid tumors (PCTs), both of which are types of neuroendocrine tumors. A label-free LC-MS-based quantitative proteomic analysis is applied to tumor cells laser-microdissected from their formalin-fixed paraffin-embedded (FFPE) tissues obtained from six patients each. RESULTS Overall, 1991 proteins are identified from tumor cells in the FFPE tissues. Through the protein-protein interaction network analysis of 201 proteins significantly, the authors find that SCLC is functionally characterized by activation of molecular pathways for spliceosome, RNA transport, and DNA replication and cell cycle. Particularly, 11 proteins involved in tumor proliferation (MCM2, 4, 6, 7, and MSH2), metastasis (RCC2, CORO1C, CHD4, and IPO9), and cancer metabolism (PHGDH and TYMP) are identified as SCLC-specific proteins. Furthermore, their prognostic significances are demonstrated by online Kaplan-Meier survival analysis. CONCLUSIONS AND CLINICAL RELEVANCE These clinical tissue proteomic approach for SCLC reveals the proteins associated with aggressiveness and poor prognosis. The identified SCLC-specific proteins represent potential therapeutic targets. Moreover, MCMs and PHGDH can be poor prognostic factors for lung cancer.
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Affiliation(s)
- Kiyonaga Fujii
- Department of Translational Medicine Informatics, St. Marianna University School of Medicine, Kawasaki, Japan
| | | | | | - Hirotaka Koizumi
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Hisashi Saji
- Department of Chest Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masahiro Hoshikawa
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masayuki Takagi
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Toshihide Nishimura
- Department of Translational Medicine Informatics, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Haruhiko Nakamura
- Department of Translational Medicine Informatics, St. Marianna University School of Medicine, Kawasaki, Japan.,Department of Chest Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
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149
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Ternette N, Olde Nordkamp MJM, Müller J, Anderson AP, Nicastri A, Hill AVS, Kessler BM, Li D. Immunopeptidomic Profiling of HLA-A2-Positive Triple Negative Breast Cancer Identifies Potential Immunotherapy Target Antigens. Proteomics 2018; 18:e1700465. [PMID: 29786170 PMCID: PMC6032843 DOI: 10.1002/pmic.201700465] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/26/2018] [Indexed: 11/06/2022]
Abstract
The recent development in immune checkpoint inhibitors and chimeric antigen receptor (CAR) T-cells in the treatment of cancer has not only demonstrated the potency of utilizing T-cell reactivity for cancer therapy, but has also highlighted the need for developing new approaches to discover targets suitable for such novel therapeutics. Here we analyzed the immunopeptidomes of six HLA-A2-positive triple negative breast cancer (TNBC) samples by nano-ultra performance liquid chromatography tandem mass spectrometry (nUPLC-MS2 ). Immunopeptidomic profiling identified a total of 19 675 peptides from tumor and adjacent normal tissue and 130 of the peptides were found to have higher abundance in tumor than in normal tissues. To determine potential therapeutic target proteins, we calculated the average tumor-associated cohort coverage (aTaCC) that represents the percentage coverage of each protein in this cohort by peptides that had higher tumoral abundance. Cofilin-1 (CFL-1), interleukin-32 (IL-32), proliferating cell nuclear antigen (PCNA), syntenin-1 (SDCBP), and ribophorin-2 (RPN-2) were found to have the highest aTaCC scores. We propose that these antigens could be evaluated further for their potential as targets in breast cancer immunotherapy and the small cohort immunopeptidomics analysis technique could be used in a wide spectrum of target discovery. Data are available via ProteomeXchange with identifier PXD009738.
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Affiliation(s)
- Nicola Ternette
- The Jenner InstituteUniversity of OxfordOxfordOX3 7FZUK
- Target Discovery InstituteNuffield Department of MedicineOxfordOX3 7FZUK
| | - Marloes J. M. Olde Nordkamp
- Nuffield Division of Clinical Laboratory SciencesRadcliffe Department of MedicineUniversity of OxfordOxfordOX3 9DUUK
| | - Julius Müller
- The Jenner InstituteUniversity of OxfordOxfordOX3 7FZUK
| | - Amanda P. Anderson
- Nuffield Division of Clinical Laboratory SciencesRadcliffe Department of MedicineUniversity of OxfordOxfordOX3 9DUUK
| | - Annalisa Nicastri
- Target Discovery InstituteNuffield Department of MedicineOxfordOX3 7FZUK
| | | | | | - Demin Li
- Nuffield Division of Clinical Laboratory SciencesRadcliffe Department of MedicineUniversity of OxfordOxfordOX3 9DUUK
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Wang L, Kong W, Liu B, Zhang X. Proliferating cell nuclear antigen promotes cell proliferation and tumorigenesis by up-regulating STAT3 in non-small cell lung cancer. Biomed Pharmacother 2018; 104:595-602. [PMID: 29803172 DOI: 10.1016/j.biopha.2018.05.071] [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: 12/21/2017] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 01/10/2023] Open
Abstract
Proliferating cell nuclear antigen (PCNA) functions as a bridging molecule, which targets proteins that have distinct roles in cell growth. The expression of PCNA is dysregulated in some tumors and takes part in the progression of oncogenesis. However, the roles of PCNA in the progression of non-small cell lung cancer (NSCLC) remain unknown. The present study aimed to investigate the function of PCNA in the occurrence and development of NSCLC and its underlying molecular mechanisms. Western blotting, RT-PCR, and immunohistochemistry assays were used to detect the expression pattern of PCNA in NSCLC tissues and cells. A log rank test was performed to compare the overall survival (OS) of patients with high/low expression of PCNA. Besides, the relationship between PCNA and signal transducer and activator of transcription-3 (STAT3) proteins were evaluated. Then, MTT, flow cytometry, clonal formation, and in vivo xenograft assays were conducted to investigate the effects of PCNA/STAT3 on cell growth, clonal formation, apoptosis, and tumorigenesis. Results showed that PCNA expression was elevated in NSCLC tissues and cells and it could combine with STAT3 and increased its expression and phosphorylation. Moreover, the expression of PCNA showed a positive correlation with the TNM grade and occurrence rate of the lymphatic metastasis and poor prognosis of NSCLC patients. Overexpression of PCNA promoted cell proliferation, clonal formation, and tumorigenesis in lung cancer cells and inhibited cell apoptosis. In contrast, these effects were inhibited when knockdown of STAT3. In conclusion, this study demonstrates that PCNA functions as an oncogene in the progression of NSCLC through up-regulation of STAT3. These findings point to a potentially new therapeutic strategy for NSCLC.
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Affiliation(s)
- Liuxin Wang
- Department of Respiration, Jining First People's Hospital, Jining, Shandong, China
| | - Weixiang Kong
- Department of Respiration, Jining First People's Hospital, Jining, Shandong, China
| | - Bing Liu
- Department of Respiration, Jining First People's Hospital, Jining, Shandong, China
| | - Xueqing Zhang
- Department of Respiration, Jining First People's Hospital, Jining, Shandong, China.
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