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Podgrajsek R, Ban Frangez H, Stimpfel M. Molecular Mechanism of Resveratrol and Its Therapeutic Potential on Female Infertility. Int J Mol Sci 2024; 25:3613. [PMID: 38612425 PMCID: PMC11011890 DOI: 10.3390/ijms25073613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Resveratrol is a polyphenol present in various plant sources. Studies have reported numerous potential health benefits of resveratrol, exhibiting anti-aging, anti-inflammatory, anti-microbial, and anti-carcinogenic activity. Due to the reported effects, resveratrol is also being tested in reproductive disorders, including female infertility. Numerous cellular, animal, and even human studies were performed with a focus on the effect of resveratrol on female infertility. In this review, we reviewed some of its molecular mechanisms of action and summarized animal and human studies regarding resveratrol and female infertility, with a focus on age-related infertility, polycystic ovary syndrome, and endometriosis.
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Affiliation(s)
- Rebeka Podgrajsek
- Department of Human Reproduction, Division of Obstetrics and Gynecology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia; (R.P.); (H.B.F.)
| | - Helena Ban Frangez
- Department of Human Reproduction, Division of Obstetrics and Gynecology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia; (R.P.); (H.B.F.)
- Medical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Martin Stimpfel
- Department of Human Reproduction, Division of Obstetrics and Gynecology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia; (R.P.); (H.B.F.)
- Medical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
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Karimi F, Dinarvand N, Sabaghan M, Azadbakht O, Ataee S, Kharazinejad E, Moazamfard M. Diabetes and ovarian cancer: risk factors, molecular mechanisms and impact on prognosis. Endocrine 2024; 83:1-9. [PMID: 37552417 DOI: 10.1007/s12020-023-03477-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 08/01/2023] [Indexed: 08/09/2023]
Abstract
BACKGROUND AND AIM Diabetes mellitus has been linked to a lower rate of cancer survival and an increase in the incidence of most malignancies. Investigations showed that diabetes might affect ovarian cancer (OC) prognosis and survival. Based on the current information, this study intends to review the risk factors, molecular pathways, and impact of diabetes on OC. METHODS The data was derived from online databases, including Web of Science, PubMed, and Scopus. The inclusion criteria were original studies, which included the risk factors, molecular mechanisms, and impact of diabetes on OC. The effect of different antidiabetic drugs was also discussed in this manuscript. All of the clinical, in vivo, and in vitro studies were included in the present study. RESULTS The diagnosis of diabetes mellitus negatively affects the survival and prognosis in OC cases. The epidemiologic data shows that the risk of OC increases in patients with diabetes mellitus compared to the healthy population. Insulin-like growth factors family was raised in diabetic patients, which target several mechanisms, including targeting oxidative stress, angiogenesis, and tumor markers. Antidiabetic drugs such as metformin, sitagliptin, and rosiglitazone have a promising effect on elongation of survival and enhancement of prognosis in OC patients. CONCLUSIONS Diabetes mellitus is a significant risk factor for OC in women, and it negatively impacts survival and prognosis. Molecular mechanisms such as IGF family, oxidative stress, and inflammatory cytokines have been identified to explain this relationship. Antidiabetic drugs like metformin, sitagliptin, and rosiglitazone have shown promise in improving survival and prognosis of OC patients.
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Affiliation(s)
- Farzaneh Karimi
- Department of Physiology, Behbahan Faculty of Medical Sciences, Behbahan, Iran.
| | - Negar Dinarvand
- Hyperlipidemia Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Sabaghan
- Department of Parasiotology, Behbahan Faculty of Medical Sciences, Behbahan, Iran
| | - Omid Azadbakht
- Department of Radiology Technology, Behbahan Faculty of Medical Sciences, Behbahan, Iran
| | - Shima Ataee
- Behbahan Faculty of Medical Sciences, Behbahan, Iran
| | - Ebrahim Kharazinejad
- Department of Anatomy, Faculty of Medicine, Abadan University of Medical Sciences, Abadan, Iran
| | - Mostafa Moazamfard
- Instructor of Operating Room, Behbahan Faculty of Medical Sciences, Behbahan, Iran.
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Moghbeli M. MicroRNAs as the pivotal regulators of cisplatin resistance in osteosarcoma. Pathol Res Pract 2023; 249:154743. [PMID: 37549518 DOI: 10.1016/j.prp.2023.154743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/03/2023] [Indexed: 08/09/2023]
Abstract
Osteosarcoma (OS) is an aggressive bone tumor that originates from mesenchymal cells. It is considered as the eighth most frequent childhood cancer that mainly affects the tibia and femur among the teenagers and young adults. OS can be usually diagnosed by a combination of MRI and surgical biopsy. The intra-arterial cisplatin (CDDP) and Adriamycin is one of the methods of choices for the OS treatment. CDDP induces tumor cell death by disturbing the DNA replication. Although, CDDP has a critical role in improving the clinical complication in OS patients, a high ratio of CDDP resistance is observed among these patients. Prolonged CDDP administrations have also serious side effects in normal tissues and organs. Therefore, the molecular mechanisms of CDDP resistance should be clarified to define the novel therapeutic modalities in OS. Multidrug resistance (MDR) can be caused by various cellular and molecular processes such as drug efflux, detoxification, and signaling pathways. MicroRNAs (miRNAs) are the key regulators of CDDP response by the post transcriptional regulation of target genes involved in MDR. In the present review we have discussed all of the miRNAs associated with CDDP response in OS cells. It was observed that the majority of reported miRNAs increased CDDP sensitivity in OS cells through the regulation of signaling pathways, apoptosis, transporters, and autophagy. This review highlights the miRNAs as reliable non-invasive markers for the prediction of CDDP response in OS patients.
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Affiliation(s)
- Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Taghehchian N, Samsami Y, Maharati A, Zangouei AS, Boroumand-Noughabi S, Moghbeli M. Molecular biology of microRNA-342 during tumor progression and invasion. Pathol Res Pract 2023; 248:154672. [PMID: 37413875 DOI: 10.1016/j.prp.2023.154672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/02/2023] [Indexed: 07/08/2023]
Abstract
Cancer is considered as one of the main causes of human deaths and health challenges in the world. Various factors are involved in the high death rate of cancer patients, including late diagnosis and drug resistance that result in treatment failure and tumor recurrence. Invasive diagnostic methods are one of the main reasons of late tumor detection in cancer patients. Therefore, it is necessary to investigate the molecular tumor biology to introduce efficient non-invasive markers. MicroRNAs (miRNAs) are involved in regulation of the cellular mechanisms such as cell proliferation, apoptosis, and migration. MiRNAs deregulations have been also frequently shown in different tumor types. Here, we discussed the molecular mechanisms of miR-342 during tumor growth. MiR-342 mainly functions as a tumor suppressor by the regulation of transcription factors and signaling pathways such as WNT, PI3K/AKT, NF-kB, and MAPK. Therefore, miR-342 mimics can be used as a reliable therapeutic strategy to inhibit the tumor cells growth. The present review can also pave the way to introduce the miR-342 as a non-invasive diagnostic/prognostic marker in cancer patients.
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Affiliation(s)
- Negin Taghehchian
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Yalda Samsami
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhosein Maharati
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Sadra Zangouei
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Samaneh Boroumand-Noughabi
- Department of Hematology and Blood Bank, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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AHNAK Contributes to Hepatocellular Carcinoma Growth by Interacting with IGF-1R. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248680. [PMID: 36557813 PMCID: PMC9782793 DOI: 10.3390/molecules27248680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/21/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022]
Abstract
Neuroblast differentiation-associated protein AHNAK, a large structural scaffold protein, remains mysterious in biological processes. AHNAK plays a suppressive or progressive role in different types of cancers. To investigate the role of the AHNAK in hepatocellular carcinoma (HCC), cell viability assays were performed to determine the cell proliferation of the stable AHNAK-knockdown HepG2 cell line; co-immunoprecipitation (Co-IP) and liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) were performed on HCC and matched paracancerous (MPC) tissues. The Metascape platform was used for enrichment analyses; the "ComplexHeatmap" package was applied for cluster analyses and visualization. Co-IP, Western botting and immunofluorescence double staining were performed to assess the interactions between AHNAK and insulin-like growth factor 1 receptor (IGF-1R). AHNAK silencing reduced the viability of HepG2 cells; the interactome in HCC and MPC tissues enriched 204 pathways and processes, which partially reflected the signature of HCC field cancerization. AHNAK could co-localize and interact with IGF-1R. These results suggested that the AHNAK complex contributes to HCC growth, potentially by interacting with IGF-1R.
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Peng J, He Q, Li S, Liu T, Zhang J. Hydrogen-Rich Water Mitigates LPS-Induced Chronic Intestinal Inflammatory Response in Rats via Nrf-2 and NF-κB Signaling Pathways. Vet Sci 2022; 9:621. [PMID: 36356098 PMCID: PMC9692594 DOI: 10.3390/vetsci9110621] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/18/2022] [Accepted: 11/02/2022] [Indexed: 04/04/2024] Open
Abstract
Long-term exposure to low-dose lipopolysaccharide can impair intestinal barriers, causing intestinal inflammation and leading to systemic inflammation. Hydrogen-rich water possesses antioxidant and anti-inflammatory functions and exerts inhibitory effects on various inflammatory diseases. In this study, we investigated whether oral hydrogen-rich water could prevent lipopolysaccharide-induced chronic intestinal inflammation. An experimental model was established by feeding hydrogen-rich water, followed by the injection of lipopolysaccharide (200 μg/kg) in the tail vein of rats after seven months. ELISA, Western blot, immunohistochemistry, and other methods were used to detect related cytokines, proteins related to the NF-κB and Nrf-2 signaling pathways, and tight-junction proteins to study the anti-inflammatory and antioxidant effects of hydrogen-rich water. The obtained results show that hydrogen-rich water significantly increased the levels of superoxide dismutase and structural proteins; activated the Nrf-2 signaling pathway; downregulated the expression of inflammatory factors cyclooxygenase-2, myeloperoxidase, and ROS; and decreased the activation of the NF-κB signaling pathway. These results suggest that hydrogen-rich water could protect against chronic intestinal inflammation in rats caused by lipopolysaccharide-induced activation of the NF-κB signaling pathway by regulating the Nrf-2 signaling pathway.
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Affiliation(s)
- Jin Peng
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Qi He
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Shuaichen Li
- Institute for Genome Biology, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Tao Liu
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Jiantao Zhang
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
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The Role of microRNAs in the Mammary Gland Development, Health, and Function of Cattle, Goats, and Sheep. Noncoding RNA 2021; 7:ncrna7040078. [PMID: 34940759 PMCID: PMC8708473 DOI: 10.3390/ncrna7040078] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 02/07/2023] Open
Abstract
Milk is an integral and therefore complex structural element of mammalian nutrition. Therefore, it is simple to conclude that lactation, the process of producing milk, is as complex as the mammary gland, the organ responsible for this biochemical activity. Nutrition, genetics, epigenetics, disease pathogens, climatic conditions, and other environmental variables all impact breast productivity. In the last decade, the number of studies devoted to epigenetics has increased dramatically. Reports are increasingly describing the direct participation of microRNAs (miRNAs), small noncoding RNAs that regulate gene expression post-transcriptionally, in the regulation of mammary gland development and function. This paper presents a summary of the current state of knowledge about the roles of miRNAs in mammary gland development, health, and functions, particularly during lactation. The significance of miRNAs in signaling pathways, cellular proliferation, and the lipid metabolism in agricultural ruminants, which are crucial in light of their role in the nutrition of humans as consumers of dairy products, is discussed.
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Patel RS, Rupani R, Impreso S, Lui A, Patel NA. Role of alternatively spliced, pro‐survival Protein Kinase C delta VIII (PKCδVIII) in ovarian cancer. FASEB Bioadv 2021; 4:235-253. [PMID: 35415459 PMCID: PMC8984081 DOI: 10.1096/fba.2021-00090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 10/26/2021] [Accepted: 11/05/2021] [Indexed: 01/05/2023] Open
Abstract
Ovarian cancer is the deadliest malignant disease in women. Protein Kinase C delta (PRKCD; PKCδ) is serine/threonine kinase extensively linked to various cancers. In humans, PKCδ is alternatively spliced to PKCδI and PKCδVIII. However, the specific function of PKCδ splice variants in ovarian cancer has not been elucidated yet. Hence, we evaluated their expression in human ovarian cancer cell lines (OCC): SKOV3 and TOV112D, along with the normal T80 ovarian cells. Our results demonstrate a marked increase in PKCδVIII in OCC compared to normal ovarian cells. Therefore, we elucidated the role of PKCδVIII and the underlying mechanism of its expression in OCC. Using overexpression and knockdown studies, we demonstrate that PKCδVIII increases cellular survival and migration in OCC. Further, overexpression of PKCδVIII in T80 cells resulted in increased expression of Bcl2 and knockdown of PKCδVIII in OCC decreased Bcl2 expression. Using co‐immunoprecipitations and immunocytochemistry, we demonstrate nuclear localization of PKCδVIII in OCC and further show increased association of PKCδVIII with Bcl2 and Bcl‐xL in OCC. Using PKCδ splicing minigene, mutagenesis, siRNA and antisense oligonucleotides, we demonstrate that increased levels of alternatively spliced PKCδVIII in OCC is regulated by splice factor SRSF2. Finally, we verified that PKCδVIII levels are elevated in samples of human ovarian cancer tissue. The data presented here demonstrate that the alternatively spliced, signaling kinase PKCδVIII is a viable target to develop therapeutics to combat progression of ovarian cancer.
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Affiliation(s)
| | - Rea Rupani
- Department of Molecular Medicine University of South Florida Tampa Florida USA
| | | | - Ashley Lui
- Department of Molecular Medicine University of South Florida Tampa Florida USA
| | - Niketa A. Patel
- James A. Haley Veterans Hospital Tampa Florida USA
- Department of Molecular Medicine University of South Florida Tampa Florida USA
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Sheng X, Zhu P, Zhao Y, Zhang J, Li H, Zhao H, Qin J. Effect of PI3K/AKT/mTOR Signaling Pathway on Regulating and Controlling the Anti-Invasion and Metastasis of Hepatoma Cells by Bufalin. Recent Pat Anticancer Drug Discov 2021; 16:54-65. [PMID: 33530915 DOI: 10.2174/1574892816666210201120324] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND Autophagy plays a "double-edged sword" in the process of tumorigenesis, development and metastasis. OBJECTIVE In this study, we explored the effect of PI3K/AKT/mTOR autophagy-related signaling pathway on regulating and controlling the invasion and metastasis of liver cancer cells by Bufalin. METHODS The cell counting, migration, adhesion and invasion assay were used to evaluate the effect of Bufalin on cell proliferation, invasion and metastasis. The protein expression of PI3K/AKT/ mTOR signaling pathway were detected by the Western Blotting technique. RESULTS After inhibiting autophagy of HCC-LM3 cells, the inhibitory effect of Bufalin on adhesion, migration and invasion of HCC-LM3 cells was significantly enhanced. Synergistic inhibition was strongest when different autophagy inhibitors were combined with 3MA and CQ. After inhibiting autophagy, Bufalin significantly inhibited the protein expression of P-AKT, Cyclin D1, MMP- 2, MMP-9 and VEGF in HCC-LM3 cells. The protein expression of PTEN and E-Cadherin in HCC-LM3 cells was significantly increased. CONCLUSION The present study shows that the anti-tumor effect of Bufalin mainly inhibit proliferation, extracellular matrix degradation and angiogenesis of HCC by influencing autophagy. These findings confirm the capability of Bufalin in inhibiting metastasis of HCC and in parallel to current patents, could be applied as a novel therapeutic strategy in the prevention of metastasis of HCC.
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Affiliation(s)
- Xia Sheng
- Department of Pathology, Affiliated to Minhang Hospital, Fudan University, Xinsong Rd. 170, Minhang District, Shanghai 201100, China
| | - Pengfei Zhu
- Department of General Surgery, Affiliated to the Third Hospital, Naval Medical University, North Moyu Rd. 700, Jiangding District, Shanghai 201805, China
| | - Yi Zhao
- Department of General Surgery, Affiliated to the Third Hospital, Naval Medical University, North Moyu Rd. 700, Jiangding District, Shanghai 201805, China
| | - Jinwei Zhang
- Department of General Surgery, Affiliated to the Third Hospital, Naval Medical University, North Moyu Rd. 700, Jiangding District, Shanghai 201805, China
| | - Haijia Li
- Department of General Surgery, Affiliated to the Third Hospital, Naval Medical University, North Moyu Rd. 700, Jiangding District, Shanghai 201805, China
| | - Huan Zhao
- Department of General Surgery, Affiliated to the Third Hospital, Naval Medical University, North Moyu Rd. 700, Jiangding District, Shanghai 201805, China
| | - Jianmin Qin
- Department of General Surgery, Affiliated to the Third Hospital, Naval Medical University, North Moyu Rd. 700, Jiangding District, Shanghai 201805, China
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Network Pharmacology Interpretation of Fuzheng-Jiedu Decoction against Colorectal Cancer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:4652492. [PMID: 33688358 PMCID: PMC7914091 DOI: 10.1155/2021/4652492] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 01/03/2021] [Accepted: 01/21/2021] [Indexed: 12/24/2022]
Abstract
Introduction Traditional Chinese medicine (TCM) believes that the pathogenic factors of colorectal cancer (CRC) are “deficiency, dampness, stasis, and toxin,” and Fuzheng–Jiedu Decoction (FJD) can resist these factors. In this study, we want to find out the potential targets and pathways of FJD in the treatment of CRC and also explain from a scientific point of view that FJD multidrug combination can resist “deficiency, dampness, stasis, and toxin.” Methods We get the composition of FJD from the TCMSP database and get its potential target. We also get the potential target of colorectal cancer according to the OMIM Database, TTD Database, GeneCards Database, CTD Database, DrugBank Database, and DisGeNET Database. Subsequently, PPI analysis, KEGG pathways analysis, and GO biological processes analysis were carried out for the target of FJD in the therapy of colorectal cancer. In addition, we have also built a relevant network diagram. Results In this study, we identified four core compounds of FJD in the therapy of colorectal cancer, including quercetin, kaempferol, beta-sitosterol, and stigmasterol. At the same time, we also obtained 30 core targets, including STAT3, INS, TP53, VEGFA, AKT1, TNF, IL6, JUN, EGF, CASP3, MAPK3, MAPK1, MAPK8, SRC, IGF1, CCND1, ESR1, EGFR, PTEN, MTOR, FOS, PTGS2, CXCL8, HRAS, CDH1, BCL2L1, FN1, MMP9, ERBB2, and JAK2. FJD treatment of colorectal cancer mainly involves 112 KEGG pathways, including FoxO (hsa04068) signaling pathway, PI3K-Akt (hsa04151) signaling pathway, HIF-1 (hsa04066) signaling pathway, T cell receptor (hsa04660) signaling pathway, and ErbB (hsa04012) signaling pathway. At the same time, 330 GO biological processes were summarized, including cell proliferation, cell apoptosis, angiogenesis, inflammation, and immune. Conclusions In this study, we found that FJD can regulate cell proliferation, apoptosis, inflammation and immunity, and angiogenesis through PI3K-Akt signaling pathway to play an anti-CRC effect.
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Li W, Li C, Lu J, Zhao Y. MiR-145 is involved in the proliferation of bovine mammary epithelial cells and regulates bovine insulin receptor substrate 1. ITALIAN JOURNAL OF ANIMAL SCIENCE 2020. [DOI: 10.1080/1828051x.2020.1732234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wenqing Li
- College of Life Science, Henan Agricultural University, Zhengzhou, China
| | - Chenwan Li
- College of Life Science, Henan Agricultural University, Zhengzhou, China
| | - Jinghui Lu
- College of Life Science, Henan Agricultural University, Zhengzhou, China
| | - Yangning Zhao
- College of Life Science, Henan Agricultural University, Zhengzhou, China
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Olsvik PA, Søfteland L. Mixture toxicity of chlorpyrifos-methyl, pirimiphos-methyl, and nonylphenol in Atlantic salmon ( Salmo salar) hepatocytes. Toxicol Rep 2020; 7:547-558. [PMID: 32373476 PMCID: PMC7191540 DOI: 10.1016/j.toxrep.2020.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/27/2020] [Accepted: 03/21/2020] [Indexed: 12/21/2022] Open
Abstract
Shotgun lipidomics points to combined effects on 18:0 and 18:1 lipid species. Combined effects seen on membrane phospholipids and TAG in salmon hepatocytes. Inhibited stearoyl CoA desaturase (SCD) and increased Δ6 desaturase (D6D) activity. Adjuvants may amend toxicity of active ingredient in pesticide formulations.
Pesticide formulations typically contain adjuvants added to enhance the performance of the active ingredient. Adjuvants may modify the bioavailability and toxicity of pesticides. In this study, the aim was to examine to which degree nonylphenol (NP) may interfere with the toxicity of two organophosphorus pesticides found in aquafeeds, chlorpyrifos-methyl (CPM) and pirimiphos-methyl (PPM). Atlantic salmon liver cells were exposed to these compounds singly or in combinations for 48 h using 3D cell cultures. Cytotoxicity, gene expression (RT-qPCR), and lipidomics endpoints were used to assess toxicity. The dose-response assessment showed that NP was the most toxic compound at equimolar concentrations (100 μM). Shotgun lipidomics pointed to a general pattern of elevated levels of saturated 18:0 fatty acids and declined levels of 18:1 monounsaturated fatty acids by the combined treatment. All three compounds had a distinct effect on membrane phospholipids, in particular on phosphatidylcholine (PC) and phosphatidylethanolamine (PE). Lipid species patterns predicted inhibited stearoyl CoA desaturase (SCD) activity and increased Δ6 desaturase (D6D) activity in co-treated cells. While all three compounds alone mitigated increased triacylglycerol (TAG) accumulation, combined treatment resulted in lower total TAG in the cells. Multivariate analysis with PLS regression showed significant combined effects for nine genes (d5d, d6d, scd, srebf2, vtg, esr1, cyp1, ugt1a, and cat) and four lipid species (FFA 22:5, LPC 18:0, TAG52:1-FA16:0, and TAG52:1-FA18:0). In summary, this study demonstrates that the adjuvant can be the main contributor to the toxicity of a mixture of two organophosphorus pesticides with relatively low toxicity in fish cells.
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Affiliation(s)
- Pål A Olsvik
- Nord University, Faculty of Biosciences and Aquaculture, Bodø, Norway.,Institute of Marine Research (IMR), Bergen, Norway
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Apelin abrogates the stimulatory effects of 17β-estradiol and insulin-like growth factor-1 on proliferation of epithelial and granulosa ovarian cancer cell lines via crosstalk between APLNR and ERα/IGF1R. Mol Biol Rep 2019; 46:6325-6338. [DOI: 10.1007/s11033-019-05073-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 09/10/2019] [Indexed: 12/18/2022]
Abstract
Abstract
Apelin and chemerin are adipocytokines that play important roles in many physiological and pathological processes throughout the body. Our previous study demonstrated that these two adipokines are expressed and secreted by epithelial and granulosa cancer cell lines. 17β-estradiol (E2) and insulin-like growth factor-1 (IGF-1) are important regulators of ovarian functions, and their roles are well known. This study investigated whether apelin and chemerin regulate proliferation and apoptosis of epithelial (OVCAR-3) and granulosa (COV434) ovarian cancer cell lines by interacting with E2 and IGF-1. Apelin and chemerin did not affect caspase-3 activation in either cell line. However, apelin abrogated the stimulatory effects of E2 on proliferation of OVCAR-3 cells and of IGF-1 on proliferation of COV434 cells independently of ERK1/2 and PI3K via crosstalk of apelin receptor with estrogen receptor alpha and IGF-1 receptor, respectively.
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Jiang HT, Ran CC, Liao YP, Zhu JH, Wang H, Deng R, Nie M, He BC, Deng ZL. IGF-1 reverses the osteogenic inhibitory effect of dexamethasone on BMP9-induced osteogenic differentiation in mouse embryonic fibroblasts via PI3K/AKT/COX-2 pathway. J Steroid Biochem Mol Biol 2019; 191:105363. [PMID: 31018166 DOI: 10.1016/j.jsbmb.2019.04.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 03/19/2019] [Accepted: 04/09/2019] [Indexed: 02/08/2023]
Abstract
Glucocorticoid-Induced Osteoporosis (GIOP) is a prevalent clinical complication caused by large dose administration of glucocorticoids, such as Dexamethasone (Dex) and Prednisone. GIOP may lead to fractures and even Osteonecrosis of the Femoral Head (ONFH). It has been reported that glucocorticoids inhibit osteogenesis via the suppression of osteogenic differentiation in Mesenchymal Stem Cells (MSCs), but the precise mechanism underlying this suppression awaits further investigation. Meanwhile, novel and efficacious therapies are recommended to cope with GIOP. In this study, we demonstrated that Dex had the inhibitory effect on Bone Morphogenetic Protein 9 (BMP9)-induced ALP activities and matrix mineralization in Mouse Embryonic Fibroblasts (MEFs). In addition, the study confirmed that Dex decreased the expression of osteogenic markers such as Runx2 and OPN. However, the inhibitory effect of Dex on these osteogenic markers can be reversed when combined with insulin-like growth factor 1 (IGF-1). Regarding the inhibitory mechanism, we found that the level of AKT and p-AKT can be decreased by Dex and that Ly294002, the PI3K inhibitor, can block the reversal effect of IGF-1. Moreover, the knockdown or inhibition of COX-2 produced similar results to those of Ly294002. Our findings indicated that IGF-1 may reverse the osteogenic inhibitory effect of Dex via PI3K/AKT pathway, which may be associated with the up-regulation of COX-2. This study may provide new clinical management strategy for GIOP cases.
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Affiliation(s)
- Hai-Tao Jiang
- Department of Orthopaedics, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing 400010, PR China; Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China
| | - Cheng-Cheng Ran
- Department of Orthopaedics, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing 400010, PR China; Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China
| | - Yun-Peng Liao
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China; Department of Pharmacology, School of Pharmacy, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China
| | - Jia-Hui Zhu
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China; Department of Pharmacology, School of Pharmacy, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China
| | - Han Wang
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China; Department of Pharmacology, School of Pharmacy, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China
| | - Rui Deng
- Department of Orthopaedics, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing 400010, PR China
| | - Mao Nie
- Department of Orthopaedics, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing 400010, PR China
| | - Bai-Cheng He
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China; Department of Pharmacology, School of Pharmacy, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing 400010, PR China
| | - Zhong-Liang Deng
- Department of Orthopaedics, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing 400010, PR China.
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15
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Shen Y, Crassini K, Sandhu S, Fatima N, Christopherson RI, Mulligan SP, Best OG. Dual inhibition of MEK1/2 and AKT by binimetinib and MK2206 induces apoptosis of chronic lymphocytic leukemia cells under conditions that mimic the tumor microenvironment. Leuk Lymphoma 2019; 60:1632-1643. [PMID: 30648436 DOI: 10.1080/10428194.2018.1542148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Several key pathways mediate signaling via the B-cell receptor, including the mitogen-activated protein kinase-ERK1/2 pathway. However, inhibition of MEK1/2, a key component of the MAPK-ERK1/2 signaling cascade, results in paradoxical activation of AKT in chronic lymphocytic leukemia (CLL) cells. In the current study we demonstrate synergy between the MEK1/2 inhibitor binimetinib and the AKT inhibitor MK2206, which combined induce apoptosis of primary CLL cells and restrict the cell cycle progression and proliferation of the OSU-CLL cell line. The mechanisms of action of the drug combination involve dual inhibition of MAPK-ERK1/2 and AKT signaling and down-regulation of Mcl-1 expression. Collectively, these data suggest that dual inhibition of MEK1/2 and AKT may represent a therapeutic option for CLL, capable of overcoming the pro-survival effects of the lymph node and bone marrow microenvironments.
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Affiliation(s)
- Yandong Shen
- a Northern Blood Research Centre, Kolling Institute , Royal North Shore Hospital , St Leonards , NSW , Australia.,b School of Life and Environmental Sciences (SOLES) , University of Sydney , Sydney , NSW , Australia
| | - Kyle Crassini
- a Northern Blood Research Centre, Kolling Institute , Royal North Shore Hospital , St Leonards , NSW , Australia
| | - Suneet Sandhu
- a Northern Blood Research Centre, Kolling Institute , Royal North Shore Hospital , St Leonards , NSW , Australia
| | - Narjis Fatima
- a Northern Blood Research Centre, Kolling Institute , Royal North Shore Hospital , St Leonards , NSW , Australia
| | - Richard I Christopherson
- b School of Life and Environmental Sciences (SOLES) , University of Sydney , Sydney , NSW , Australia
| | - Stephen P Mulligan
- a Northern Blood Research Centre, Kolling Institute , Royal North Shore Hospital , St Leonards , NSW , Australia.,b School of Life and Environmental Sciences (SOLES) , University of Sydney , Sydney , NSW , Australia
| | - O Giles Best
- a Northern Blood Research Centre, Kolling Institute , Royal North Shore Hospital , St Leonards , NSW , Australia.,b School of Life and Environmental Sciences (SOLES) , University of Sydney , Sydney , NSW , Australia
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16
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Jiao B, Zhang X, Wang S, Wang L, Luo Z, Zhao H, Khatib H, Wang X. MicroRNA-221 regulates proliferation of bovine mammary gland epithelial cells by targeting the STAT5a and IRS1 genes. J Dairy Sci 2019; 102:426-435. [DOI: 10.3168/jds.2018-15108] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/24/2018] [Indexed: 01/29/2023]
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17
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IGF-1-Overexpressing Mesenchymal Stem/Stromal Cells Promote Immunomodulatory and Proregenerative Effects in Chronic Experimental Chagas Disease. Stem Cells Int 2018; 2018:9108681. [PMID: 30140292 PMCID: PMC6081563 DOI: 10.1155/2018/9108681] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 07/03/2018] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) have been investigated for the treatment of diseases that affect the cardiovascular system, including Chagas disease. MSCs are able to promote their beneficial actions through the secretion of proregenerative and immunomodulatory factors, including insulin-like growth factor-1 (IGF-1), which has proregenerative actions in the heart and skeletal muscle. Here, we evaluated the therapeutic potential of IGF-1-overexpressing MSCs (MSC_IGF-1) in a mouse model of chronic Chagas disease. C57BL/6 mice were infected with Colombian strain Trypanosoma cruzi and treated with MSCs, MSC_IGF-1, or vehicle (saline) six months after infection. RT-qPCR analysis confirmed the presence of transplanted cells in both the heart and skeletal muscle tissues. Transplantation of either MSCs or MSC_IGF-1 reduced the number of inflammatory cells in the heart when compared to saline controls. Moreover, treatment with MSCs or MSC_IGF-1 significantly reduced TNF-α, but only MSC treatment reduced IFN-γ production compared to the saline group. Skeletal muscle sections of both MSC- and MSC_IGF-1-treated mice showed a reduction in fibrosis compared to saline controls. Importantly, the myofiber area was reduced in T. cruzi-infected mice, and this was recovered after treatment with MSC_IGF-1. Gene expression analysis in the skeletal muscle showed a higher expression of pro- and anti-inflammatory molecules in MSC_IGF-1-treated mice compared to MSCs alone, which significantly reduced the expression of TNF-α and IL-1β. In conclusion, our results indicate the therapeutic potential of MSC_IGF-1, with combined immunomodulatory and proregenerative actions to the cardiac and skeletal muscles.
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Liao G, Chen F, Zhong J, Jiang X. MicroRNA‑539 inhibits the proliferation and invasion of bladder cancer cells by regulating IGF‑1R. Mol Med Rep 2018; 17:4917-4924. [PMID: 29393438 DOI: 10.3892/mmr.2018.8497] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 06/26/2017] [Indexed: 11/06/2022] Open
Abstract
Bladder cancer is the most frequent malignancy of the urinary tract and the seventh most common cancer worldwide. The abnormal expression of microRNAs has been frequently observed in various types of human cancers, including bladder cancer. In addition, an increasing body of evidence has demonstrated that microRNAs are potential targets for cancer diagnosis, treatments and prognosis. The aim of the present study was to investigate the expression patterns and potential roles of microRNA‑539 (miR‑539) in bladder cancer and its underlying mechanism. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to detect miR‑539 expression in the bladder cancer tissues and cell lines. Following transfection, MTT and cell invasion assays were used to investigate the effects of miR‑539 overexpression or IGF1R underexpression on bladder cancer cell proliferation and invasion. Bioinformatics analysis, a luciferase reporter assay, RT‑qPCR and western blot analysis were utilized to determine the potential targets of miR‑539 in bladder cancer. The results revealed that miR‑539 levels were relatively decreased in bladder cancer tissues and cell lines when compared with those observed in the matched adjacent normal bladder tissues and normal bladder epithelial cell line. miR‑539 expression was associated with the tumor stage and lymph node metastasis of patients with bladder cancer. In addition, the expression of miR‑539 suppressed bladder cancer cell proliferation and invasion. Insulin like growth factor 1 receptor (IGF‑1R) was identified as a direct target of miR‑539, and miR‑539 was also observed to regulate the protein kinase B and extracellular signal‑regulated kinases signaling pathways. IGF‑1R was markedly upregulated in bladder cancer tissues and negatively associated with miR‑539 expression levels. Furthermore, IGF‑1R knockdown in bladder cancer cells significantly inhibited cell proliferation and invasion. To the best of our knowledge, these results demonstrated for the first time that miR‑539 may act as a tumor suppressor and serve important roles in tumorigenesis and progression of bladder cancer. Thus, miR‑539/IGF‑1R may be a potential therapeutic target for the treatment of bladder cancer.
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Affiliation(s)
- Guiyi Liao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Fangmin Chen
- Department of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Jinbiao Zhong
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Xinan Jiang
- Department of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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19
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Liu W, Kang L, Han J, Wang Y, Shen C, Yan Z, Tai Y, Zhao C. miR-342-3p suppresses hepatocellular carcinoma proliferation through inhibition of IGF-1R-mediated Warburg effect. Onco Targets Ther 2018; 11:1643-1653. [PMID: 29615839 PMCID: PMC5870664 DOI: 10.2147/ott.s161586] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background Insulin-like growth factor-1 receptor (IGF-1R) is a well-studied oncogenic factor that promotes cell proliferation and energy metabolism and is overexpressed in numerous cancers including hepatocellular carcinoma (HCC). Aerobic glycolysis is a hallmark of cancer, and drugs targeting its regulators, including IGF-1R, are being developed. However, the mechanisms of IGF-1R inhibition and the physiological significance of the IGF-1R inhibitors in cancer cells are unclear. Materials and methods Cell proliferation was evaluated by cell counting Kit-8 and colony formation assay. Western blot and real-time PCR were accordingly used to detect the relevant proteins, miRNA and gene expression. Luciferase reporter assays were used to illustrate the interaction between miR-342-3p and IGF-1R. The effect of miR-342-3p on glycolysis was determined by glucose uptake, ATP concentration, lactate generation, extracellular acidification rate and oxygen consumption rate assays. In vivo, subcutaneous tumor formation assay and PET were performed in nude mice. Results In this study, we demonstrate that by directly targeting the 3′-UTR (3′-untranslated regions) of IGF-1R, microRNA-342-3p (miR-342-3p) suppresses IGF-1R-mediated PI3K/AKT/GLUT1 signaling pathway both in vitro and in vivo. Through suppression of IGF-1R, miR-342-3p dampens glycolysis by decreasing glucose uptake, lactate generation, ATP production, and extracellular acidification rate (ECAR), and increasing oxygen consumption rate (OCR) in hepatoma cells. Importantly, glycolysis regulated by miR-342-3p is critical for its regulating HCC growth both in vitro and in vivo. Conclusion Our findings provide clues regarding the role of miR-342-3p as a tumor suppressor in liver cancer mainly through the inhibition of IGF-1R. Targeting IGF-1R by miR-342-3p could be a potential therapeutic strategy in liver cancer.
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Affiliation(s)
- Wenpeng Liu
- Department of Infectious Diseases, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lei Kang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China
| | - Juqiang Han
- Institute of Liver Disease, Beijing Military General Hospital, Beijing, China
| | - Yadong Wang
- Department of Infectious Diseases, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
| | - Chuan Shen
- Department of Infectious Diseases, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhifeng Yan
- Department of Gynecology and Obstetrics, PLA General Hospital, Beijing, China
| | - Yanhong Tai
- Department of Pathology, Hospital of PLA, Beijing, China
| | - Caiyan Zhao
- Department of Infectious Diseases, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
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20
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Najafi M, Cheki M, Rezapoor S, Geraily G, Motevaseli E, Carnovale C, Clementi E, Shirazi A. Metformin: Prevention of genomic instability and cancer: A review. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 827:1-8. [PMID: 29502733 DOI: 10.1016/j.mrgentox.2018.01.007] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/28/2017] [Accepted: 01/15/2018] [Indexed: 12/21/2022]
Abstract
The diabetes drug metformin can mitigate the genotoxic effects of cytotoxic agents and has been proposed to prevent or even cure certain cancers. Metformin reduces DNA damage by mechanisms that are only incompletely understood. Metformin scavenges free radicals, including reactive oxygen species and nitric oxide, which are produced by genotoxicants such as ionizing or non-ionizing radiation, heavy metals, and chemotherapeutic agents. The drug may also increase the activities of antioxidant enzymes and inhibit NADPH oxidase, cyclooxygenase-2, and inducible nitric oxide synthase, thereby limiting macrophage recruitment and inflammatory responses. Metformin stimulates the DNA damage response (DDR) in the homologous end-joining, homologous recombination, and nucleotide excision repair pathways. This review focuses on the protective properties of metformin against genomic instability.
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Affiliation(s)
- Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Science, Kermanshah, Iran
| | - Mohsen Cheki
- Department of Radiologic Technology, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Saeed Rezapoor
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Carla Carnovale
- Department of Biomedical and Clinical Sciences L. Sacco, Unit of Clinical Pharmacology, ASST Fatebenefratelli-Sacco University Hospital, Università di Milano, Milan, Italy
| | - Emilio Clementi
- Scientific Institute, IRCCS E. Medea, Bosisio Parini, Lecco, Italy; Unit of Clinical Pharmacology, Department of Biomedical and Clinical Sciences, Consiglio Nazionale delle Ricerche Institute of Neuroscience, L. Sacco University Hospital, Università di Milano, Milan, Italy
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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21
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Gao L, Liu B, Mao W, Gao R, Zhang S, Duritahala, Fu C, Shen Y, Zhang Y, Zhang N, Wu J, Deng Y, Wu X, Cao J. PTGER2 activation induces PTGS-2 and growth factor gene expression in endometrial epithelial cells of cattle. Anim Reprod Sci 2017; 187:54-63. [DOI: 10.1016/j.anireprosci.2017.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 09/16/2017] [Accepted: 10/06/2017] [Indexed: 11/25/2022]
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22
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Liu X, Xu J, Wang S, Yu X, Kou B, Chai M, Zang Y, Chen D. Synergistic inhibitory effects on hepatocellular carcinoma with recombinant human adenovirus Aspp2 and oxaliplatin via p53-independent pathway in vitro and in vivo. Int J Oncol 2017; 51:1291-1299. [PMID: 28902369 DOI: 10.3892/ijo.2017.4105] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 07/26/2017] [Indexed: 11/06/2022] Open
Abstract
The present study was designed to investigate the synergistic inhibitory effects on hepatocellular carcinoma with recombinant human adenovirus Aspp2 (Aspp2-ad) and oxaliplatin via p53-independent pathway in vitro and in vivo. After being treated with Aspp2-ad and/or oxaliplatin for 24-48 h, HepG2P53-/- and Hep3B cells showed a significant growth inhibition compared with vehicle control. Combination group showed a synergetic effect, the inhibitory rates were all above 80% at 48 h point in HepG2P53-/- and Hep3B cells. The apoptotic cell numbers of Aspp2-ad and/or oxaliplatin treatment groups were increased remarkably, especially for the combined therapy group in the liver cancer cells. The Hep3B xenograft experiment also showed similar inhibition of Aspp2-ad and/or oxaliplatin to the in vitro experiment. H&E results showed that combination group had the least mitotic indexes and the most necrosis. The immunohistochemistry results showed that PCNA, CD31 expression decreased greatly in treatment groups. These results suggested that Aspp2-ad might inhibit proliferation and vascular growth of hepatocarcinoma. Aspp2 induced apoptosis protein expression in Aspp2-ad and combination groups, the Aspp2, Bax and activation of caspase-3 expression increased greatly both in vitro and in vivo. But interestingly, the autophagy proteins showed different responses not only in HepG2P53-/- and Hep3B cells but also in vitro and in vivo. We found that Aspp2-ad downregulated the p-ERK, p-STAT3 expression, the synergistic effects were observed in combination group, while there was not response of mTOR to Aspp2-ad. In conclusion, Aspp2-ad, in P53-independent manner, regulated ERK and STAT3 signal moleculars to inhibit hepatocarcinoma in coordination with oxaliplatin by influencing the protein expression of proliferation, apoptosis, autophagy and vascular growth. Aspp2-ad has the potential to be developed in gene therapy for HCC, especially for P53 deletion or mutation in HCC.
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Affiliation(s)
- Xiaoni Liu
- Beijing Institute of Hepatology and Beijing YouAn Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Jianji Xu
- Beijing Institute of Hepatology and Beijing YouAn Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Shuang Wang
- Beijing Institute of Hepatology and Beijing YouAn Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Xiaoxiao Yu
- Beijing Institute of Hepatology and Beijing YouAn Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Boxin Kou
- Beijing Institute of Hepatology and Beijing YouAn Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Mengyin Chai
- Beijing Institute of Hepatology and Beijing YouAn Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Yunjin Zang
- Beijing Institute of Hepatology and Beijing YouAn Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Dexi Chen
- Beijing Institute of Hepatology and Beijing YouAn Hospital, Capital Medical University, Beijing 100069, P.R. China
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Insulin-like growth factor-1 activates different catalytic subunits p110 of PI3K in a cell-type-dependent manner to induce lipogenesis-dependent epithelial–mesenchymal transition through the regulation of ADAM10 and ADAM17. Mol Cell Biochem 2017; 439:199-211. [DOI: 10.1007/s11010-017-3148-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 08/05/2017] [Indexed: 12/23/2022]
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24
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Zhou F, Nie L, Feng D, Guo S, Luo R. MicroRNA-379 acts as a tumor suppressor in non-small cell lung cancer by targeting the IGF‑1R-mediated AKT and ERK pathways. Oncol Rep 2017; 38:1857-1866. [PMID: 28731178 DOI: 10.3892/or.2017.5835] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 07/07/2017] [Indexed: 12/12/2022] Open
Abstract
Lung cancer is one of the most common types of malignancy in humans and is a leading cause of cancer-related deaths among men and women worldwide. Aberrantly expressed microRNAs in non-small cell lung cancer (NSCLC) contribute to tumor occurrence and development as either tumor suppressors or promoters. MicroRNA-379 (miR‑379) is dysregulated in several types of human cancer. However, its expression pattern, role and underlying mechanism in NSCLC progression and metastasis are poorly understood. In this study, assay of reverse transcription-quantitative polymerase chain reaction showed that miR‑379 was downregulated in both NSCLC tissue and cell lines. Low miR‑379 expression in NSCLC tissues was significantly correlated with TNM stage and lymph node metastasis. In addition, functional experiments revealed that restoring the expression of miR‑379 inhibited cell proliferation, migration and invasion of NSCLC. The insulin-like growth factor receptor-1 (IGF‑1R) was identified as a direct target of miR‑379 in NSCLC. IGF‑1R was highly expressed in NSCLC tissues and inversely correlated with miR‑379 expression. Downregulation of IGF‑1R had tumor suppressive roles similar to that of miR‑379 overexpression on NSCLC cell proliferation, migration and invasion. Moreover, the upregulation of IGF‑1R effectively rescued the tumor suppressive roles induced by miR‑379 overexpression in NSCLC. The resumption of the expression of miR‑379 inhibited the activation of AKT and ERK signaling pathways in NSCLC. These findings suggested that miR‑379 acts as a tumor suppressor in NSCLC by directly targeting IGF‑1R and indirectly regulating AKT and ERK signaling pathways. miR‑379 provides novel therapeutic targets for the treatment of patients with this disease.
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Affiliation(s)
- Fangzheng Zhou
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441399, P.R. China
| | - Long Nie
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441399, P.R. China
| | - Dali Feng
- Department of Radiotherapy and Chemotherapy, The Second People's Hospital of Yichang, Yichang, Hubei 43000, P.R. China
| | - Siyan Guo
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441399, P.R. China
| | - Ren'na Luo
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441399, P.R. China
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25
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Wang H, Yu L, Shan X. Expression levels of microRNA‑455 and its potential functions by targeting IGF‑1R in melanoma. Mol Med Rep 2017; 15:3852-3858. [PMID: 28440508 DOI: 10.3892/mmr.2017.6468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Accepted: 02/03/2017] [Indexed: 11/06/2022] Open
Abstract
Melanoma has the highest fatality and malignancy of all skin cancers. In cancer, microRNAs (miRNAs) act as tumor suppressors or oncogenes, and inactivation of oncogenic miRNAs or restoration of tumor suppressor miRNAs has potential for cancer treatment. In the present study, miR‑455 expression levels were examined in melanoma tissues and cell lines, and miR‑455 was significantly downregulated in melanoma compared with matched normal tissues or normal epidermal melanocytes. In addition, increasing miR‑455 expression in melanoma cells reduced cell proliferation and invasion. Bioinformatic analysis revealed that insulin‑like growth factor 1 receptor (IGF‑1R) was a putative target of miR‑455. Luciferase reporter assays, reverse transcription‑quantitative polymerase chain reaction and western blot confirmed that miR‑455 targeted the 3'‑untranslated region of IGF‑1R and thus regulated the biological processes of melanoma cells. IGF‑1R knockdown resulted in similar effects as miR‑455 overexpression in melanoma cells. In summary, these findings indicated that miR‑455 was downregulated in melanoma, and inhibited proliferation and invasion of melanoma cells through directly targeting IGF‑1R. This also suggested that the restoration of miR‑455 may be worth investigation as a therapeutic treatment for patients with melanoma.
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Affiliation(s)
- Hui Wang
- Department of Dermatology, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Liang Yu
- Department of Clinical Laboratory, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Xiujuan Shan
- Department of Dermatology, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
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Hao B, Cui L, Gu Y, Zhang B, Wang M, Zhou H, Xu R, He X. WITHDRAWN: MicroRNA-99a Suppresses Proliferation, Migration, Invasion and Induces G1-phase Cell Cycle Arrest via Targeting Insulin-like Growth Factor 1 Receptor Pathway in Renal Cell Carcinoma 786-0 and OS-RC-2 Cells. Urology 2017:S0090-4295(17)30015-8. [PMID: 28088554 DOI: 10.1016/j.urology.2017.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 12/13/2016] [Accepted: 01/02/2017] [Indexed: 11/24/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- Bo Hao
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Li Cui
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Yi Gu
- Department of Breast Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Bo Zhang
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China.
| | - Min Wang
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Hua Zhou
- Department of Nephrology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Renfang Xu
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Xiaozhou He
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, China
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Detection of microRNA-200b may predict the inhibitory effect of gefitinib on non-small cell lung cancer and its potential mechanism. Oncol Lett 2016; 12:5349-5355. [PMID: 28101246 DOI: 10.3892/ol.2016.5365] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/28/2016] [Indexed: 12/11/2022] Open
Abstract
The present study aimed to investigate the association and underlying mechanisms between microRNA-200b level and the inhibitory effect of gefitinib on non-small cell lung cancer. In total, 100 patients (43 males and 57 females; median age, 63 years) with advanced non-small cell lung cancer (NSCLC) were selected. All patients were administered with gefitinib orally (250 mg/day) and the effect of gefitinib was evaluated according to the Response Evaluation Criteria in Solid Tumors guidelines. Tumor tissue and plasma samples were collected prior to and subsequent to therapy. The microRNA-200b levels in tissues and plasma were determined by quantitative polymerase chain reaction (PCR). A549 cells were cultured in vitro and transfected with microRNA-200b mimic. Using Cell Counting Kit-8 assay, the proliferation inhibition detected was induced by 0.1 µM gefitinib in transfected or non-transfected A549 cells. Cell apoptosis and cell cycle progression were analyzed by flow cytometry and the migration of cells was observed by Transwell assay. In addition, mRNA and protein levels of insulin-like growth factor 1 receptor (IGF-1R), protein kinase B (AKT) and extracellular signal-related kinase (ERK), together with the phosphorylation of AKT and ERK in A549 cells, were determined by quantitative PCR and western blot analysis, respectively. The microRNA-200b levels in gefitinib-insensitive patients were decreased compared with gefitinib-sensitive patients. Transfection with microRNA-200b mimic increased the gefitinib induced proliferation inhibition, apoptosis and cell cycle arrest in A549 cells. Also, transfection with microRNA-200b mimic increased the migration inhibitory effect of gefitinib on A549 cells. Decreased IGF-1R expression together with reduced phosphorylation of AKT and ERK were observed following transfection of A549 cells with the microRNA 200b mimic. In conclusion, detection of microRNA-200b may predict the inhibitory effect of gefitinib on NSCLC. Upregulation of microRNA-200b led to the elevated sensitivity of glioma cells to gefitinib, and this effect may be explained as microRNA-200b being able to inhibit the expression of IGF-1R, thereby reducing the activation of downstream phosphoinositide 3-kinase/AKT and mitogen-activated protein kinase signaling pathways.
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Zhu C, Ji Y, Liu S, Bian Z. Follicle-stimulating hormone enhances alveolar bone resorption via upregulation of cyclooxygenase-2. Am J Transl Res 2016; 8:3861-3871. [PMID: 27725865 PMCID: PMC5040683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/29/2016] [Indexed: 06/06/2023]
Abstract
This study aimed to investigate whether follicle-stimulating hormone (FSH)-induced alveolar bone resorption was mediated by a cyclooxygenase 2 (COX-2) enzyme related mechanism. Experimental periodontitis was induced in bilateral ovariectomized (OVX) rats, some of which were injected with triptorelin, an FSH inhibitor. After mandibles were collected, we performed micro-computed tomography to evaluate alveolar bone loss and immunohistochemical staining to assess COX-2 expression. As well, human periodontal ligament cells (PDLCs) were treated with FSH (30 ng/ml), and the COX-2 mRNA and protein expression levels were measured by quantitative real-time polymerase chain reaction (qPCR) and Western blotting, respectively; prostaglandin E2 (PGE2) levels were measured by enzyme-linked immunosorbent assay (ELISA). The results indicated that FSH significantly increased alveolar bone resorption and the expression of COX-2 in the bilateral OVX + Ligatured rats compared with the other treatment groups. FSH also increased the mRNA and protein expression of COX-2 and PGE2 (P < 0.01) in human PDLCs. Further, the analysis of signaling pathways revealed the activation of COX-2-mediated pathways including Erk, p38, and Akt. These data suggest that FSH aggravates alveolar bone loss via a COX-2-upregulation mechanism and that the Erk, p38, and Akt pathways are involved in this pathological process.
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Affiliation(s)
- Chunxia Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan 430079, Hubei, China
| | - Yaoting Ji
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan 430079, Hubei, China
| | - Shengbo Liu
- Department of Endodontics, School and Hospital of Stomatology, Wuhan UniversityWuhan 430079, Hubei, China
| | - Zhuan Bian
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan 430079, Hubei, China
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Li N, Zhao X, Wang L, Zhang S, Cui M, He J. miR-494 suppresses tumor growth of epithelial ovarian carcinoma by targeting IGF1R. Tumour Biol 2015; 37:7767-76. [PMID: 26695144 DOI: 10.1007/s13277-015-4603-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 12/07/2015] [Indexed: 12/19/2022] Open
Abstract
A growing body of evidence suggests that microRNA-494 (miR-494) could act as tumor-suppressive or oncogenic microRNAs (miRNAs) in different types of tumors. However, the biological roles and underlying mechanisms of miR-494 remain unknown in human epithelial ovarian carcinoma (EOC). Therefore, the aims of this study were to investigate the miR-494 expression and the significance of its clinical diagnosis in patients suffering EOC and to analyze its role and underlying molecular mechanism on the carcinogenesis of EOC. Here, we found that miR-494 was significantly decreased in EOC cell lines and tissues and its expression was negatively correlated with advanced International Federation of Gynecology and Obstetrics (FIGO) stage, high pathological grade, and lymph node metastasis (all P < 0.01). Functional studies showed that overexpression of miR-494 in EOC cells could remarkably inhibit proliferation, colony formation, migration, and invasion and induce cell apoptosis, G0/G1 phase arrest. An in vivo analysis revealed that the overexpression of miR-494 suppressed tumor growth in a nude mouse xenograft model system. Bioinformatic assay and dual-luciferase assay confirmed that insulin-like growth factor 1 receptor (IGF1R) was as a direct target of miR-494 in EOC cells. Western blot assay showed that overexpression of miR-494 inhibited IGF1R expression and its downstream signal protein expression. In addition, downregulation of IGF1R has similar effects with miR-494 overexpression on EOC cells and overexpression of IGF1R effectively rescued the inhibition of overexpressed miR-494 in EOC cells. These data suggested that miR-494 functions as a tumor suppressor in EOC by targeting IGF1R.
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Affiliation(s)
- Na Li
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, 130021, Jilin Province, People's Republic of China
| | - Xiaosu Zhao
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, 130021, Jilin Province, People's Republic of China
| | - Lufei Wang
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, 130041, Jilin Province, People's Republic of China
| | - Shi Zhang
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, 130021, Jilin Province, People's Republic of China
| | - Manhua Cui
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, 130041, Jilin Province, People's Republic of China.
| | - Jin He
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, 130021, Jilin Province, People's Republic of China.
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Liu Y, Zhu ST, Wang X, Deng J, Li WH, Zhang P, Liu BS. MiR-100 Inhibits Osteosarcoma Cell Proliferation, Migration, and Invasion and Enhances Chemosensitivity by Targeting IGFIR. Technol Cancer Res Treat 2015; 15:NP40-8. [PMID: 26306402 DOI: 10.1177/1533034615601281] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Accepted: 07/22/2015] [Indexed: 01/29/2023] Open
Abstract
MicroRNAs are highly conserved noncoding RNA that negatively modulate protein expression at a posttranscriptional and/or translational level. MicroRNAs play an important role in the development and progression of human cancers, including osteosarcoma. Recent studies have shown that miR-100 was downregulated in many cancers; however, the role of miR-100 in human osteosarcoma has not been totally elucidated. In this study, we demonstrate that the expression of miR-100 was significantly downregulated in human osteosarcoma tissues compared to the adjacent tissues. Enforced expression of miR-100 inhibited cell proliferation, migration, and invasion abilities of osteosarcoma cells, U-2OS, and MG-63. Additionally, miR-100 also sensitized osteosarcoma cells to cisplatin and promoted apoptosis. Furthermore, overexpression of miR-100 decreased the expression of insulin-like growth factor I receptor and inhibited PI3K/AKT and MAPK/ERK signaling. In human clinical specimens, insulin-like growth factor I receptor was inversely correlated with miR-100 in osteosarcoma tissues. Collectively, our results demonstrate that miR-100 is a tumor suppressor microRNA and indicate its potential application for the treatment of osteosarcoma in future.
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Affiliation(s)
- Yang Liu
- Department of Orthopedics, Huaihe Hospital of Henan University, Kaifeng, China
| | - Shu-Tao Zhu
- Department of Orthopedics, Huaihe Hospital of Henan University, Kaifeng, China
| | - Xiao Wang
- Department of Orthopedics, Huaihe Hospital of Henan University, Kaifeng, China
| | - Jun Deng
- Department of Orthopedics, Huaihe Hospital of Henan University, Kaifeng, China
| | - Wei-Hua Li
- Department of Orthopedics, Huaihe Hospital of Henan University, Kaifeng, China
| | - Peng Zhang
- Department of Orthopedics, Huaihe Hospital of Henan University, Kaifeng, China
| | - Bing-Shan Liu
- Department of Orthopedics, Huaihe Hospital of Henan University, Kaifeng, China
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Zhou X, Shen F, Ma P, Hui H, Pei S, Chen M, Wang Z, Zhou W, Jin B. GSK1838705A, an IGF-1R inhibitor, inhibits glioma cell proliferation and suppresses tumor growth in vivo. Mol Med Rep 2015; 12:5641-6. [PMID: 26238593 PMCID: PMC4581800 DOI: 10.3892/mmr.2015.4129] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 05/08/2015] [Indexed: 12/14/2022] Open
Abstract
Glioma is a type of primary malignant tumor of the central nervous system in humans. At present, standard treatment involves surgical resection, followed by radiation therapy and chemotherapy. However, the prognosis is poor and the long-term survival rate remains low. An improved understanding of the molecular basis for glioma tumorigenesis is in urgently required. The pro-survival effect of the insulin-like growth factor (IGF) signaling pathway has been implicated in progression of the glioma disease state. GSK1838705A is a novel, small molecule kinase inhibitor of IGF-IR, which inhibits IGF signal transduction and downstream target activation. Its anti-proliferative activity has been demonstrated in various tumor cell lines. The present study investigated the potential use of GSK1838705A for the treatment of glioma. Human U87MG glioma cells were used to examine the inhibitory activity of GSK1838705A in cell proliferation, migration and apoptosis. The antitumor activity of GSK1838705A was assessed in a xenograft mouse model. GSK1838705A inhibited the growth and induced the apoptosis of the U87MG glioma cells in a dose-dependent manner. The GSK1838705A-treated cells exhibited reduced migratory activity in response to chemoattractants. The present study further demonstrated the antitumor activity of GSK1838705A in vivo. The administration of GSK1838705A significantly inhibited the growth of glioma tumors by inducing the apoptosis of tumor cells. These results suggested that targeting IGF signaling with GSK1838705A may be a promising therapeutic strategy for the treatment of patients with glioma.
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Affiliation(s)
- Xiang Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
| | - Fazheng Shen
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
| | - Pengju Ma
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
| | - Hongyan Hui
- Department of Pharmacy, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
| | - Sujuan Pei
- Department of Pharmacy, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
| | - Ming Chen
- Department of Pharmacy, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
| | - Zhongwei Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
| | - Wenke Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
| | - Baozhe Jin
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453100, P.R. China
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Zhang W, Liu K, Liu S, Ji B, Wang Y, Liu Y. MicroRNA-133a functions as a tumor suppressor by targeting IGF-1R in hepatocellular carcinoma. Tumour Biol 2015; 36:9779-88. [DOI: 10.1007/s13277-015-3749-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 07/02/2015] [Indexed: 02/08/2023] Open
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Herre DJ, Norman JB, Anderson R, Tremblay ML, Huby AC, Belin de Chantemèle EJ. Deletion of Protein Tyrosine Phosphatase 1B (PTP1B) Enhances Endothelial Cyclooxygenase 2 Expression and Protects Mice from Type 1 Diabetes-Induced Endothelial Dysfunction. PLoS One 2015; 10:e0126866. [PMID: 25974252 PMCID: PMC4431674 DOI: 10.1371/journal.pone.0126866] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 04/08/2015] [Indexed: 01/13/2023] Open
Abstract
Protein tyrosine phosphatase 1B (PTP1B) dephosphorylates receptors tyrosine kinase and acts as a molecular brake on insulin signaling pathway. Conditions of metabolic dysfunction increase PTP1B, when deletion of PTP1B protects against metabolic disorders by increasing insulin signaling. Although vascular insulin signaling contributes to the control of glucose disposal, little is known regarding the direct role of PTP1B in the control of endothelial function. We hypothesized that metabolic dysfunctions increase PTP1B expression in endothelial cells and that PTP1B deletion prevents endothelial dysfunction in situation of diminished insulin secretion. Type I diabetes (T1DM) was induced in wild-type (WT) and PTP1B-deficient mice (KO) with streptozotocin (STZ) injection. After 28 days of T1DM, KO mice exhibited a similar reduction in body weight and plasma insulin levels and a comparable increase in glycemia (WT: 384±20 vs. Ko: 432±29 mg/dL), cholesterol and triglycerides, as WT mice. T1DM increased PTP1B expression and impaired endothelial NO-dependent relaxation, in mouse aorta. PTP1B deletion did not affect baseline endothelial function, but preserved endothelium-dependent relaxation, in T1DM mice. NO synthase inhibition with L-NAME abolished endothelial relaxation in control and T1DM WT mice, whereas L-NAME and the cyclooxygenases inhibitor indomethacin were required to abolish endothelium relaxation in T1DM KO mice. PTP1B deletion increased COX-2 expression and PGI2 levels, in mouse aorta and plasma respectively, in T1DM mice. In parallel, simulation of diabetic conditions increased PTP1B expression and knockdown of PTP1B increased COX-2 but not COX-1 expression, in primary human aortic endothelial cells. Taken together these data indicate that deletion of PTP1B protected endothelial function by compensating the reduction in NO bioavailability by increasing COX-2-mediated release of the vasodilator prostanoid PGI2, in T1DM mice.
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Affiliation(s)
- David J. Herre
- Physiology Department, Medical College of Georgia at Georgia Regents University, Augusta, GA, United States of America
| | - J. Blake Norman
- Physiology Department, Medical College of Georgia at Georgia Regents University, Augusta, GA, United States of America
| | - Ruchi Anderson
- Physiology Department, Medical College of Georgia at Georgia Regents University, Augusta, GA, United States of America
| | - Michel L. Tremblay
- Goodman Cancer Center and Department of Biochemistry, McGill University, Montreal, QC, Canada
| | - Anne-Cecile Huby
- Physiology Department, Medical College of Georgia at Georgia Regents University, Augusta, GA, United States of America
| | - Eric J. Belin de Chantemèle
- Physiology Department, Medical College of Georgia at Georgia Regents University, Augusta, GA, United States of America
- * E-mail:
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Li Y, Chen X, Tang X, Zhang C, Wang L, Chen P, Pan M, Lu C. DNA synthesis during endomitosis is stimulated by insulin via the PI3K/Akt and TOR signaling pathways in the silk gland cells of Bombyx mori. Int J Mol Sci 2015; 16:6266-80. [PMID: 25794286 PMCID: PMC4394531 DOI: 10.3390/ijms16036266] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/03/2015] [Accepted: 03/05/2015] [Indexed: 01/23/2023] Open
Abstract
Silk gland cells undergo multiple endomitotic cell cycles during silkworm larval ontogeny. Our previous study demonstrated that feeding is required for continued endomitosis in the silk gland cells of silkworm larvae. Furthermore, the insulin signaling pathway is closely related to nutritional signals. To investigate whether the insulin signaling pathway is involved in endomitosis in silk gland cells, in this study, we initially analyzed the effects of bovine insulin on DNA synthesis in endomitotic silk gland cells using 5-bromo-2'-deoxyuridine (BrdU) labeling technology, and found that bovine insulin can stimulate DNA synthesis. Insulin signal transduction is mainly mediated via phosphoinositide 3-kinase (PI3K)/Akt, the target of rapamycin (TOR) and the extracellular signal-regulated kinase (ERK) pathways in vertebrates. We ascertained that these three pathways are involved in DNA synthesis in endomitotic silk gland cells using specific inhibitors against each pathway. Moreover, we investigated whether these three pathways are involved in insulin-stimulated DNA synthesis in endomitotic silk gland cells, and found that the PI3K/Akt and TOR pathways, but not the ERK pathway, are involved in this process. These results provide an important theoretical foundation for the further investigations of the mechanism underlying efficient endomitosis in silk gland cells.
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Affiliation(s)
- Yaofeng Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
| | - Xiangyun Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
| | - Xiaofang Tang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
| | - Chundong Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China.
| | - La Wang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
| | - Peng Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
| | - Minhui Pan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
- Key Laboratory for Sericulture Functional Genomics and Biotechnology of Agricultural Ministry, Southwest University, Chongqing 400716, China.
| | - Cheng Lu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
- Key Laboratory for Sericulture Functional Genomics and Biotechnology of Agricultural Ministry, Southwest University, Chongqing 400716, China.
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Influence of ω-3 fatty acid eicosapentaenoic acid on IGF-1 and COX-2 gene expression in granulosa cells of PCOS women. IRANIAN JOURNAL OF REPRODUCTIVE MEDICINE 2015; 13:71-8. [PMID: 25999995 PMCID: PMC4426143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 09/21/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND The omega-3 (ω-3) fatty acid eicosapentaenoic acid (EPA) is currently used in the clinic as a nutritional supplement to improve infertility, particularly in women with polycystic ovarian syndrome (PCOS). OBJECTIVE The present study was designed to investigate the effect of EPA on insulin-like growth factor 1 (IGF-1) and cyclooxygenase 2 (COX-2) gene expression in primary cultured granulosa cells from patients undergoing in vitro fertilization (IVF), and also to compare this effect with those in granulosa cells of PCOS patients. MATERIALS AND METHODS In this experimental study, human granulosa cells were isolated from follicular fluid of normal and PCOS women undergoing IVF by hyaluronidase digestions, followed by Percoll gradient centrifugation. Cells were cultured in vitro, exposed to a range of concentrations of the EPA (25-100 µM) for 24 hr, and investigated with respect to COX-2 and IGF-1 gene expression by real time-PCR. RESULTS In both groups, all doses of the EPA significantly induced IGF-1 mRNA gene expression compared to the untreated control. High doses of EPA in the presence of recombinant (r) FSH produced a stimulatory effect on IGF-1 and a suppressive effect (p=0.01) on the COX-2 gene expression, which were more pronounced in granulosa cells from PCOS patients. CONCLUSION EPA affect diversely the gene expression of IGF-1 and COX-2 in granulosa cells, which were more pronounced in PCOS compared to control. These findings represent the possible underlying molecular mechanisms for the positive impact of the ω-3 fatty acids on reproduction, especially in patients with PCOS.
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Wang B, Sun F, Dong N, Sun Z, Diao Y, Zheng C, Sun J, Yang Y, Jiang D. MicroRNA-7 directly targets insulin-like growth factor 1 receptor to inhibit cellular growth and glucose metabolism in gliomas. Diagn Pathol 2014; 9:211. [PMID: 25394492 PMCID: PMC4236426 DOI: 10.1186/s13000-014-0211-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 10/26/2014] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Recent studies observed that altered energy metabolism has become widespread in cancer cells along with other cancer-associated traits that have been accepted as hallmarks of cancer. Akt signaling pathway is involved in the aerobic glycolysis program. However, mechanisms underlying the regulation of aerobic glycolysis and Akt activity in gliomas remain unclear. MicroRNAs are a group of small non-coding RNAs that can function as endogenous RNA interference to regulate expression of targeted genes. This study was conducted to detect the function of miR-7 targeting insulin-like growth factor 1 receptor (IGF-1R), which is an upstream regulator of Akt. METHODS MicroRNA expression data for gliomas and normal controls were downloaded from The Cancer Genome Atlas (TCGA) database. Quantitative real-time PCR was used to measure the microRNA-7 (miR-7) expression level, and Western blot was performed to detect protein expression in U87 and U251 cells. Colony formation assay and glycolysis stress test were also conducted. Luciferase reporter assay was used to identify the mechanism of IGF-1R and miR-7 regulation. RESULTS miR-7 was downregulated in human glioma tissues based on TCGA database. Forced expression of miR-7 or IGF-1R knockdown inhibited colony formation and glucose metabolic capabilities of glioma cells in vitro and decreased the p-Akt expression level. Bioinformatics analysis results indicated that IGF-1R could be a target of miR-7. Western blot and luciferase reporter assays showed that miR-7 modulated IGF-1R expression by directly targeting the binding site within the 3'-untranslated region. CONCLUSIONS This study provides the first evidence that miR-7 inhibits cellular growth and glucose metabolism in gliomas, at least partially, by regulating the IGF-1R/Akt signaling pathway. Therefore, miR-7 is a promising molecular drug for glioma treatment. VIRTUAL SLIDES The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/13000_2014_211.
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Affiliation(s)
- Bo Wang
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
| | - Fei Sun
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
| | - Nan Dong
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
| | - Zhenguo Sun
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
| | - Yi Diao
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
| | - Cheng Zheng
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
| | - Jianxin Sun
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
| | - Yang Yang
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
| | - Dehua Jiang
- Department of Neurosurgery, Xuzhou Central Hospital, Xuzhou, 221009, China.
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Abrantes JLF, Tornatore TF, Pelizzaro-Rocha KJ, de Jesus MB, Cartaxo RT, Milani R, Ferreira-Halder CV. Crosstalk between kinases, phosphatases and miRNAs in cancer. Biochimie 2014; 107 Pt B:167-87. [PMID: 25230087 DOI: 10.1016/j.biochi.2014.09.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 09/04/2014] [Indexed: 02/07/2023]
Abstract
Reversible phosphorylation of proteins, performed by kinases and phosphatases, is the major post translational protein modification in eukaryotic cells. This intracellular event represents a critical regulatory mechanism of several signaling pathways and can be related to a vast array of diseases, including cancer. Cancer research has produced increasing evidence that kinase and phosphatase activity can be compromised by mutations and also by miRNA silencing, performed by small non-coding and endogenously produced RNA molecules that lead to translational repression. miRNAs are believed to target about one-third of human mRNAs while a single miRNA may target about 200 transcripts simultaneously. Regulation of the phosphorylation balance by miRNAs has been a topic of intense research over the last years, spanning topics going as far as cancer aggressiveness and chemotherapy resistance. By addressing recent studies that have shown miRNA expression patterns as phenotypic signatures of cancers and how miRNA influence cellular processes such as apoptosis, cell cycle control, angiogenesis, inflammation and DNA repair, we discuss how kinases, phosphatases and miRNAs cooperatively act in cancer biology.
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Affiliation(s)
- Júlia L F Abrantes
- Department of Biochemistry, Institute of Biology, UNICAMP, 13083-970 Campinas, Brazil
| | - Thaís F Tornatore
- Department of Biochemistry, Institute of Biology, UNICAMP, 13083-970 Campinas, Brazil
| | | | - Marcelo B de Jesus
- Department of Biochemistry, Institute of Biology, UNICAMP, 13083-970 Campinas, Brazil
| | - Rodrigo T Cartaxo
- Department of Biochemistry, Institute of Biology, UNICAMP, 13083-970 Campinas, Brazil
| | - Renato Milani
- Department of Biochemistry, Institute of Biology, UNICAMP, 13083-970 Campinas, Brazil
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Saeki T, Inui H, Fujioka S, Fukuda S, Nomura A, Nakamura Y, Park EY, Sato K, Kanamoto R. Staurosporine synergistically potentiates the deoxycholate-mediated induction of COX-2 expression. Physiol Rep 2014; 2:2/8/e12143. [PMID: 25168879 PMCID: PMC4246598 DOI: 10.14814/phy2.12143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Colorectal cancer is a major cause of cancer‐related death in western countries, and thus there is an urgent need to elucidate the mechanism of colorectal tumorigenesis. A diet that is rich in fat increases the risk of colorectal tumorigenesis. Bile acids, which are secreted in response to the ingestion of fat, have been shown to increase the risk of colorectal tumors. The expression of cyclooxygenase (COX)‐2, an inducible isozyme of cyclooxygenase, is induced by bile acids and correlates with the incidence and progression of cancers. In this study, we investigated the signal transduction pathways involved in the bile‐acid‐mediated induction of COX‐2 expression. We found that staurosporine (sts), a potent protein kinase C (PKC) inhibitor, synergistically potentiated the deoxycholate‐mediated induction of COX‐2 expression. Sts did not increase the stabilization of COX‐2 mRNA. The sts‐ and deoxycholate‐mediated synergistic induction of COX‐2 expression was suppressed by a membrane‐permeable Ca2+ chelator, a phosphoinositide 3‐kinase inhibitor, a nuclear factor‐κB pathway inhibitor, and inhibitors of canonical and stress‐inducible mitogen‐activated protein kinase pathways. Inhibition was also observed using PKC inhibitors, suggesting the involvement of certain PKC isozymes (η, θ, ι, ζ, or μ). Our results indicate that sts exerts its potentiating effects via the phosphorylation of p38. However, the effects of anisomycin did not mimic those of sts, indicating that although p38 activation is required, it does not enhance deoxycholate‐induced COX‐2 expression. We conclude that staurosporine synergistically enhances deoxycholate‐induced COX‐2 expression in RCM‐1 colon cancer cells. e12143 The expression of COX‐2, an inducible isozyme of cyclooxygenase, correlates with the incidence and progression of cancers, and bile acids have been shown to induce COX‐2 expression. We investigated the signal transduction pathways involved in the bile‐acid‐mediated induction of COX‐2 expression, and we found that staurosporine, a potent PKC inhibitor, synergistically potentiated the deoxycholate‐mediated induction of COX‐2 expression. Staurosporine exerted its potentiating effects via the phosphorylation of p38, and the involvement of certain PKC isozymes was suggested.
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Affiliation(s)
- Tohru Saeki
- Laboratory of Molecular Nutrition, Kyoto Prefectural University, Kyoto, Japan
| | - Haruka Inui
- Laboratory of Molecular Nutrition, Kyoto Prefectural University, Kyoto, Japan
| | - Saya Fujioka
- Laboratory of Molecular Nutrition, Kyoto Prefectural University, Kyoto, Japan
| | - Suguru Fukuda
- Laboratory of Molecular Nutrition, Kyoto Prefectural University, Kyoto, Japan
| | - Ayumi Nomura
- Laboratory of Molecular Nutrition, Kyoto Prefectural University, Kyoto, Japan
| | - Yasushi Nakamura
- Laboratory of Food Science, Kyoto Prefectural University, Kyoto, Japan
| | - Eun Young Park
- Laboratory of Food Science, Kyoto Prefectural University, Kyoto, Japan
| | - Kenji Sato
- Laboratory of Food Science, Kyoto Prefectural University, Kyoto, Japan
| | - Ryuhei Kanamoto
- Laboratory of Molecular Nutrition, Kyoto Prefectural University, Kyoto, Japan
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Sukarieh R, Joseph R, Leow SC, Li Y, Löffler M, Aris IM, Tan JH, Teh AL, Chen L, Holbrook JD, Ng KL, Lee YS, Chong YS, Summers SA, Gluckman PD, Stünkel W. Molecular pathways reflecting poor intrauterine growth are found in Wharton's jelly-derived mesenchymal stem cells. Hum Reprod 2014; 29:2287-301. [DOI: 10.1093/humrep/deu209] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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40
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Guo T, Feng Y, Liu Q, Yang X, Jiang T, Chen Y, Zhang Q. MicroRNA-320a suppresses in GBM patients and modulates glioma cell functions by targeting IGF-1R. Tumour Biol 2014; 35:11269-75. [DOI: 10.1007/s13277-014-2283-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 06/24/2014] [Indexed: 12/15/2022] Open
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41
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Qiu X, Cheng JC, Chang HM, Leung PCK. COX2 and PGE2 mediate EGF-induced E-cadherin-independent human ovarian cancer cell invasion. Endocr Relat Cancer 2014; 21:533-43. [PMID: 24969217 DOI: 10.1530/erc-13-0450] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Elevated expression of cyclooxygenase 2 (COX2 (PTGS2)) has been reported to occur in human ovarian cancer and to be associated with poor prognosis. We have previously demonstrated that COX2-derived prostaglandin E2 (PGE2) promotes human ovarian cancer cell invasion. We had also demonstrated that epidermal growth factor (EGF) induces human ovarian cancer cell invasion by downregulating the expression of E-cadherin through various signaling pathways. However, it remains unclear whether COX2 and PGE2 are involved in the EGF-induced downregulation of E-cadherin expression and cell invasion in human ovarian cancer cells. In this study, we showed that EGF treatment induces COX2 expression and PGE2 production in SKOV3 and OVCAR5 human ovarian cancer cell lines. Interestingly, COX2 is not required for the EGF-induced downregulation of E-cadherin expression. In addition, EGF treatment activates the phosphatidylinositol-3-kinase (PI3K)/Akt and cAMP response element-binding protein (CREB) signaling pathways, while only the PI3K/Akt pathway is involved in EGF-induced COX2 expression. Moreover, we also showed that EGF-induced cell invasion is attenuated by treatment with a selective COX2 inhibitor, NS-398, as well as PGE2 siRNA. This study demonstrates an important role for COX2 and its derivative, PGE2, in the mediation of the effects of EGF on human ovarian cancer cell invasion.
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Affiliation(s)
- Xin Qiu
- Department of Obstetrics and GynaecologyChild and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada V5Z 4H4
| | - Jung-Chien Cheng
- Department of Obstetrics and GynaecologyChild and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada V5Z 4H4
| | - Hsun-Ming Chang
- Department of Obstetrics and GynaecologyChild and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada V5Z 4H4
| | - Peter C K Leung
- Department of Obstetrics and GynaecologyChild and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada V5Z 4H4
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42
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Huang YF, Cheng WF, Wu YP, Cheng YM, Hsu KF, Chou CY. Circulating IGF system and treatment outcome in epithelial ovarian cancer. Endocr Relat Cancer 2014; 21:217-29. [PMID: 24273235 DOI: 10.1530/erc-13-0274] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Aggressive epithelial ovarian cancers (EOCs) frequently progress and become fatal, even when cytoreduction surgery plus platinum-based chemotherapy are performed. Thus, the early detection of high-risk subgroups is important in order to provide opportunities for better treatment outcomes, using alternative therapeutic strategies. This study aimed to explore the expression of circulating IGF system components and their relationship with treatment outcome in EOC. We included 228 patients with a median follow-up time of 44 months at two tertiary centers. There were 68 cancer deaths and 108 cases of cancer progression in the cohort. Preoperative serum levels of total IGF1, IGF2, IGF-binding protein 2 (IGFBP2), and IGFBP3 were analyzed using an ELISA and were then converted into an IGF1:IGFBP3 molar ratio. The risks of mortality and progression were estimated using Cox regression models in univariate and multivariate analyses. Our results showed that high IGF1, IGF2, and IGFBP3 levels were significantly associated with an early cancer stage, non-serous histology, and optimal cytoreduction. High IGFBP2 levels were associated with an advanced stage and serous histology. Overall and progression-free survival durations were significantly better among patients with high IGF1 (P=0.003 and P=0.001), IGF2 (P=0.003 and P=0.02), or IGFBP3 levels (P=0.02 and P=0.008). In multivariate analysis, serum IGFBP2 levels were significantly associated with increased risk of mortality (hazard ratio=1.84, 95% CI: 1.07-3.18, P=0.03), indicating that IGFBP2 could be used as an early predictor of EOC-related mortality. The combination of elevated IGFBP2 and reduced IGF1 levels at diagnosis could further facilitate the identification of a patient subgroup with the worst prognosis.
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Affiliation(s)
- Yu-Fang Huang
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan Department of Obstetrics and Gynecology, National Taiwan University, Taipei, Taiwan Center for Gene Regulation and Signal Transduction Research, National Cheng Kung University, Tainan, Taiwan
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43
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Kim D, Shin H, Sohn KA, Verma A, Ritchie MD, Kim JH. Incorporating inter-relationships between different levels of genomic data into cancer clinical outcome prediction. Methods 2014; 67:344-53. [PMID: 24561168 DOI: 10.1016/j.ymeth.2014.02.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Revised: 01/25/2014] [Accepted: 02/07/2014] [Indexed: 01/06/2023] Open
Abstract
In order to improve our understanding of cancer and develop multi-layered theoretical models for the underlying mechanism, it is essential to have enhanced understanding of the interactions between multiple levels of genomic data that contribute to tumor formation and progression. Although there exist recent approaches such as a graph-based framework that integrates multi-omics data including copy number alteration, methylation, gene expression, and miRNA data for cancer clinical outcome prediction, most of previous methods treat each genomic data as independent and the possible interplay between them is not explicitly incorporated to the model. However, cancer is dysregulated by multiple levels in the biological system through genomic, epigenomic, transcriptomic, and proteomic level. Thus, genomic features are likely to interact with other genomic features in the different genomic levels. In order to deepen our knowledge, it would be desirable to incorporate such inter-relationship information when integrating multi-omics data for cancer clinical outcome prediction. In this study, we propose a new graph-based framework that integrates not only multi-omics data but inter-relationship between them for better elucidating cancer clinical outcomes. In order to highlight the validity of the proposed framework, serous cystadenocarcinoma data from TCGA was adopted as a pilot task. The proposed model incorporating inter-relationship between different genomic features showed significantly improved performance compared to the model that does not consider inter-relationship when integrating multi-omics data. For the pair between miRNA and gene expression data, the model integrating miRNA, for example, gene expression, and inter-relationship between them with an AUC of 0.8476 (REI) outperformed the model combining miRNA and gene expression data with an AUC of 0.8404. Similar results were also obtained for other pairs between different levels of genomic data. Integration of different levels of data and inter-relationship between them can aid in extracting new biological knowledge by drawing an integrative conclusion from many pieces of information collected from diverse types of genomic data, eventually leading to more effective screening strategies and alternative therapies that may improve outcomes.
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Affiliation(s)
- Dokyoon Kim
- Seoul National University Biomedical Informatics (SNUBI), Div. of Biomedical Informatics, Seoul National University College of Medicine, Seoul 110799, Republic of Korea; Center for Systems Genomics, Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA.
| | - Hyunjung Shin
- Department of Industrial & Information Systems Engineering, Ajou University, San 5, Wonchun-dong, Yeoungtong-gu, 443-749 Suwon, Republic of Korea.
| | - Kyung-Ah Sohn
- Department of Information and Computer Engineering, Ajou University, Suwon 443-749, Republic of Korea.
| | - Anurag Verma
- Center for Systems Genomics, Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA.
| | - Marylyn D Ritchie
- Center for Systems Genomics, Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA.
| | - Ju Han Kim
- Seoul National University Biomedical Informatics (SNUBI), Div. of Biomedical Informatics, Seoul National University College of Medicine, Seoul 110799, Republic of Korea; Systems Biomedical Informatics Research Center, Seoul National University, Seoul 110799, Republic of Korea.
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44
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Pérez-Pérez A, Maymó J, Gambino Y, Guadix P, Dueñas JL, Varone C, Sánchez-Margalet V. Insulin enhances leptin expression in human trophoblastic cells. Biol Reprod 2013; 89:20. [PMID: 23718986 DOI: 10.1095/biolreprod.113.109348] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Leptin, one of the adipokines that controls energy metabolism via the central nervous system, also has pleiotropic peripheral effects, acting as a proinflammatory cytokine. Leptin is also produced by trophoblastic cells in the placenta, where leptin seems to function as a trophic autocrine hormone. Leptin expression is regulated by various tissue-specific factors, such as insulin, in the adipocyte. However, the complete regulation of leptin production in the placenta is still poorly understood. That is why we investigated the regulation of leptin expression by insulin in JEG-3 trophoblastic cells and human placental explants from normal pregnancies. Western blot analysis and quantitative real time RT-PCR was performed to determine the leptin expression level after treatment of cells or trophoblast explants with different concentrations of insulin (0.1-100 nM). Leptin promoter activity was evaluated by transient transfection with a plasmid construct containing different promoter regions and the reporter luciferase gene. We found a stimulatory, dose-dependent effect of insulin on endogenous leptin expression in human placental explants. Maximal effect was achieved at 10 nM insulin, and this effect can be totally prevented both by blocking phosphatidylinositol 3 kinase (PI3K) pathways and mitogen-activated protein kinase (MAPK). Moreover, insulin treatment significantly enhanced leptin promoter activity up to 40% in JEG-3 trophoblastic cells. Deletion analysis demonstrated that a minimal promoter region between -1951 and -1546 bp is necessary to achieve insulin effects. In conclusion, we provide evidence suggesting that insulin induces leptin expression in trophoblastic cells, enhancing the activity of leptin promoter region between -1951 and -1546 bp, via both PI3K- and MAPK-signaling pathways.
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Affiliation(s)
- Antonio Pérez-Pérez
- Department of Medical Biochemistry and Molecular Biology, Medical School, Virgen Macarena University Hospital, University of Seville, Av. Dr. Fedriani 3, Seville, Spain
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45
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Jia Y, Lin J, Mi Y, Zhang C. Prostaglandin E(2) and insulin-like growth factor I interact to enhance proliferation of theca externa cells from chicken prehierarchical follicles. Prostaglandins Other Lipid Mediat 2013; 106:91-8. [PMID: 23810989 DOI: 10.1016/j.prostaglandins.2013.05.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 05/22/2013] [Accepted: 05/28/2013] [Indexed: 01/11/2023]
Abstract
The interactive effect of insulin-like growth factor I (IGF-I) and prostaglandin E2 (PGE2) on the proliferation of theca externa cells (TECs) was investigated in the prehierarchical small yellow follicles of laying hens. IGF-I manifested a proliferating effect like PGE2 on TECs, but this stimulating effect was restrained by AG1024 (IGF-IR inhibitor), KP372-1 (PKB/AKT inhibitor) or NS398 (COX-2 inhibitor). AG1024, KP372-1 or NS398 abolished IGF-I-stimulated COX-2 expression and PGE2 production. Meanwhile, KP372-1, NS398 or AG1024 depressed the PGE2-stimulated expression of COX-2 and IGF-IR mRNA. Therefore, the IGF-I receptor pathway up-regulates COX-2 expression and PGE2 synthesis via PKB signaling cascade, and then PGE2 stimulates IGF-IR mRNA expression to promote TEC proliferation in an autocrine pattern. Overall, the reciprocal stimulation of intracellular PGE2 and IGF-I may enhance TEC proliferation and facilitate the development of chicken prehierarchical follicles.
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Affiliation(s)
- Yudong Jia
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
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46
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Lu X, Wang L, Mei J, Wang X, Zhu X, Zhang Q, Lv J. Picropodophyllin inhibits epithelial ovarian cancer cells in vitro and in vivo. Biochem Biophys Res Commun 2013; 435:385-90. [DOI: 10.1016/j.bbrc.2013.04.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Accepted: 04/29/2013] [Indexed: 10/26/2022]
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47
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Shi ZM, Wang XF, Qian X, Tao T, Wang L, Chen QD, Wang XR, Cao L, Wang YY, Zhang JX, Jiang T, Kang CS, Jiang BH, Liu N, You YP. MiRNA-181b suppresses IGF-1R and functions as a tumor suppressor gene in gliomas. RNA (NEW YORK, N.Y.) 2013; 19:552-560. [PMID: 23431408 PMCID: PMC3677265 DOI: 10.1261/rna.035972.112] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 01/14/2013] [Indexed: 06/01/2023]
Abstract
MicroRNAs (miRNAs) are single-stranded, 18- to 23-nt RNA molecules that function as regulators of gene expression. Previous studies have shown that microRNAs play important roles in human cancers, including gliomas. Here, we found that expression levels of miR-181b were decreased in gliomas, and we identified IGF-1R as a novel direct target of miR-181b. MiR-181b overexpression inhibited cell proliferation, migration, invasion, and tumorigenesis by targeting IGF-1R and its downstream signaling pathways, PI3K/AKT and MAPK/ERK1/2. Overexpression of IGF-1R rescued the inhibitory effects of miR-181b. In clinical specimens, IGF-1R was overexpressed, and its protein levels were inversely correlated with miR-181b expression. Taken together, our results indicate that miR-181b functions in gliomas to suppress growth by targeting the IGF-1R oncogene and that miR-181b may serve as a novel therapeutic target for gliomas.
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Affiliation(s)
- Zhu-mei Shi
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Xie-feng Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Xu Qian
- State Key Lab of Reproductive Medicine, Department of Pathology and Cancer Center, Nanjing Medical University, Nanjing 210029, China
| | - Tao Tao
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Lin Wang
- State Key Lab of Reproductive Medicine, Department of Pathology and Cancer Center, Nanjing Medical University, Nanjing 210029, China
| | - Qiu-dan Chen
- State Key Lab of Reproductive Medicine, Department of Pathology and Cancer Center, Nanjing Medical University, Nanjing 210029, China
| | - Xi-rui Wang
- Department of Neurosurgery, Cangzhou Central Hospital, Cangzhou 061001, Hebei Province, China
| | - Lei Cao
- Department of Neurosurgery, Xuzhou Central Hospital, Affiliated Hospital of Medical College of Southeast University, Xuzhou 221009, Jiangsu, China
| | - Ying-yi Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Jun-xia Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Tao Jiang
- Department of Neurosurgery, Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Chun-sheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Bing-hua Jiang
- State Key Lab of Reproductive Medicine, Department of Pathology and Cancer Center, Nanjing Medical University, Nanjing 210029, China
| | - Ning Liu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Yong-ping You
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
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New players for advanced prostate cancer and the rationalisation of insulin-sensitising medication. Int J Cell Biol 2013; 2013:834684. [PMID: 23573093 PMCID: PMC3614121 DOI: 10.1155/2013/834684] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 01/29/2013] [Indexed: 12/13/2022] Open
Abstract
Obesity and type 2 diabetes are recognised risk factors for the development of some cancers and, increasingly, predict more aggressive disease, treatment failure, and cancer-specific mortality. Many factors may contribute to this clinical observation. Hyperinsulinaemia, dyslipidaemia, hypoxia, ER stress, and inflammation associated with expanded adipose tissue are thought to be among the main culprits driving malignant growth and cancer advancement. This observation has led to the proposal of the potential utility of "old players" for the treatment of type 2 diabetes and metabolic syndrome as new cancer adjuvant therapeutics. Androgen-regulated pathways drive proliferation, differentiation, and survival of benign and malignant prostate tissue. Androgen deprivation therapy (ADT) exploits this dependence to systemically treat advanced prostate cancer resulting in anticancer response and improvement of cancer symptoms. However, the initial therapeutic response from ADT eventually progresses to castrate resistant prostate cancer (CRPC) which is currently incurable. ADT rapidly induces hyperinsulinaemia which is associated with more rapid treatment failure. We discuss current observations of cancer in the context of obesity, diabetes, and insulin-lowering medication. We provide an update on current treatments for advanced prostate cancer and discuss whether metabolic dysfunction, developed during ADT, provides a unique therapeutic window for rapid translation of insulin-sensitising medication as combination therapy with antiandrogen targeting agents for the management of advanced prostate cancer.
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Chen L, Sooranna SR, Lei K, Kandola M, Bennett PR, Liang Z, Grammatopoulos D, Johnson MR. Cyclic AMP increases COX-2 expression via mitogen-activated kinase in human myometrial cells. J Cell Mol Med 2012; 16:1447-60. [PMID: 21854542 PMCID: PMC3823214 DOI: 10.1111/j.1582-4934.2011.01413.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Cyclic AMP (cAMP) is the archetypal smooth muscle relaxant, mediating the effects of many hormones and drugs. However, recently PGI2, acting via cAMP/PKA, was found to increase contraction-associated protein expression in myometrial cells and to promote oxytocin-driven myometrial contractility. Cyclo-oxygenase-2 (COX-2) is the rate-limiting enzyme in prostaglandin synthesis, which is critical to the onset and progression of human labour. We have investigated the impact of cAMP on myometrial COX-2 expression, synthesis and activity. Three cAMP agonists (8-bromo-cAMP, forskolin and rolipram) increased COX-2 mRNA expression and further studies confirmed that this was associated with COX-2 protein synthesis and activity (increased PGE2 and PGI2 in culture supernatant) in primary cultures of human myometrial cells. These effects were neither reproduced by specific agonists nor inhibited by specific inhibitors of known cAMP-effectors (PKA, EPAC and AMPK). We then used shRNA to knockdown the same effectors and another recently described cAMP-effector PDZ-GEF1-2, without changing the response to cAMP. We found that MAPK activation mediated the cAMP effects on COX-2 expression and that PGE2 acts through EP-2 to activate MAPK and increase COX-2. These data provide further evidence in support of a dual role for cAMP in the regulation of myometrial function.
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Affiliation(s)
- Li Chen
- Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
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50
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Yu SM, Kim SJ. Thymoquinone (TQ) regulates cyclooxygenase-2 expression and prostaglandin E2 production through PI3kinase (PI3K)/p38 kinase pathway in human breast cancer cell line, MDA-MB-231. Anim Cells Syst (Seoul) 2012. [DOI: 10.1080/19768354.2011.647834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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