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Effects of p38 MAPK signaling pathway on cognitive function and recovery of neuronal function after hypoxic-ischemic brain injury in newborn rats. J Clin Neurosci 2020; 78:365-370. [PMID: 32360159 DOI: 10.1016/j.jocn.2020.04.085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 04/06/2020] [Accepted: 04/15/2020] [Indexed: 12/29/2022]
Abstract
To explore the effects of p38 MAPK signaling pathway on cognitive function and recovery of neuronal function after hypoxic-ischemic brain injury (HIBI) in newborn rats. Seventy-two healthy SPF grade SD newborn rats were randomly and equally divided into Normal group (healthy rats) and Sham group (rats underwent sham operation), Model group (HIBI model rats), p38 MAPK Inhibitor group (HIBI model rats treated with p38 MAPK inhibitor) and p38 MAPK Activator group (HIBI model rats treated with p38 MAPK activator). On postnatal day 28, Morris water maze, tail suspension test and inclined plane test were conducted on rats in each group. Twenty-four hours after modeling, the expression of p-p38 MAPK protein and apoptosis related genes in rat hippocampal tissues was detected by TUNEL staining, qRT-PCR and Western blot. Compared with Normal group, escape latency and inclined plane test time were prolonged, the number of passing through the platform and tail suspension time were reduced (all P < 0.05); Bax and Caspase-3 mRNA and protein expression levels and p-p38 MAPK protein level were increased, Bcl-2 mRNA level was decreased, and neuronal apoptosis proportion was increased in Model group (all P < 0.05). Compared with Model group, the above indicators showed reversed and enhanced trends in p38 MAPK Inhibitor and p38 MAPK Activator groups, respectively (all P < 0.05). Inhibition of p38 MAPK signaling pathway can effectively improve the learning and memory ability and motor function of newborn rats with HIBI, and reduce neuronal apoptosis in the hippocampal tissues, thereby promoting neuronal recovery.
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Lin CL, Hung TW, Ying TH, Lin CJ, Hsieh YH, Chen CM. Praeruptorin B Mitigates the Metastatic Ability of Human Renal Carcinoma Cells through Targeting CTSC and CTSV Expression. Int J Mol Sci 2020; 21:ijms21082919. [PMID: 32331211 PMCID: PMC7216260 DOI: 10.3390/ijms21082919] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/19/2020] [Accepted: 04/21/2020] [Indexed: 12/14/2022] Open
Abstract
Renal cell carcinoma (RCC) is the most common adult kidney cancer, and accounts for 85% of all cases of kidney cancers worldwide. Praeruptorin B (Pra-B) is a bioactive constituent of Peucedanum praeruptorum Dunn and exhibits several pharmacological activities, including potent antitumor effects. However, the anti-RCC effects of Pra-B and their underlying mechanisms are unclear; therefore, we explored the effects of Pra-B on RCC cells in this study. We found that Pra-B nonsignificantly influenced the cell viability of human RCC cell lines 786-O and ACHN at a dose of less than 30 μM for 24 h treatment. Further study revealed that Pra-B potently inhibited the migration and invasion of 786-O and ACHN cells, as well as downregulated the mRNA and protein expression of cathepsin C (CTSC) and cathepsin V (CTSV) of 786-O and ACHN cells. Mechanistically, Pra-B also reduced the protein levels of phospho (p)-epidermal growth factor receptor (EGFR), p-mitogen-activated protein kinase kinase (MEK), and p-extracellular signal-regulated kinases (ERK) in RCC cells. In addition, Pra-B treatment inhibited the effect of EGF on the upregulation of EGFR–MEK–ERK, CTSC and CTSV expression, cellular migration, and invasion of 786-O cells. Our findings are the first to demonstrate that Pra-B can reduce the migration and invasion ability of human RCC cells through suppressing the EGFR-MEK-ERK signaling pathway and subsequently downregulating CTSC and CTSV. This evidence suggests that Pra-B can be developed as an effective antimetastatic agent for the treatment of RCC.
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Affiliation(s)
- Chia-Liang Lin
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 40201, Taiwan; (C.-L.L.); (C.-J.L.)
- Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan
| | - Tung-Wei Hung
- Division of Nephrology, Department of Medicine, Chung Shan Medical University Hospital, Taichung 40201, Taiwan;
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Tsung-Ho Ying
- Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan;
- Department of Obstetrics and Gynecology, School of Medicine, College of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Chi-Jui Lin
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 40201, Taiwan; (C.-L.L.); (C.-J.L.)
| | - Yi-Hsien Hsieh
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 40201, Taiwan; (C.-L.L.); (C.-J.L.)
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Correspondence: (Y.-H.H.); (C.-M.C.); Tel.: +886-04-24730022 (Y.-H.H.); Fax: +886-04-23248110 (Y.-H.H.)
| | - Chien-Min Chen
- Division of Neurosurgery, Department of Surgery, Changhua Christian Hospital, Changhua 50006, Taiwan
- School of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- College of Nursing and Health Sciences, Dayeh University, Changhua 51591, Taiwan
- Correspondence: (Y.-H.H.); (C.-M.C.); Tel.: +886-04-24730022 (Y.-H.H.); Fax: +886-04-23248110 (Y.-H.H.)
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The p38 MAPK Signaling Activation in Colorectal Cancer upon Therapeutic Treatments. Int J Mol Sci 2020; 21:ijms21082773. [PMID: 32316313 PMCID: PMC7215415 DOI: 10.3390/ijms21082773] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 02/06/2023] Open
Abstract
Pharmacological treatment of colorectal carcinoma currently proceeds through the administration of a combination of different chemotherapeutic agents. In the case of rectal carcinoma, radiation therapy also represents a therapeutic strategy. In an attempt at translating much-needed new targeted therapy to the clinics, p38 mitogen activated protein kinase (MAPK) inhibitors have been tested in clinical trials involving colorectal carcinoma patients, especially in combination with chemotherapy; however, despite the high expectations raised by a clear involvement of the p38 MAPK pathway in the response to therapeutic treatments, poor results have been obtained so far. In this work, we review recent insights into the exact role of the p38 MAPK pathway in response to currently available therapies for colorectal carcinoma, depicting an intricate scenario in which the p38 MAPK node presents many opportunities, as well as many challenges, for its perspective exploitation for clinical purposes.
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Walczak K, Wnorowski A, Turski WA, Plech T. Kynurenic acid and cancer: facts and controversies. Cell Mol Life Sci 2020; 77:1531-1550. [PMID: 31659416 PMCID: PMC7162828 DOI: 10.1007/s00018-019-03332-w] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 09/30/2019] [Accepted: 10/08/2019] [Indexed: 12/17/2022]
Abstract
Kynurenic acid (KYNA) is an endogenous tryptophan metabolite exerting neuroprotective and anticonvulsant properties in the brain. However, its importance on the periphery is still not fully elucidated. KYNA is produced endogenously in various types of peripheral cells, tissues and by gastrointestinal microbiota. Furthermore, it was found in several products of daily human diet and its absorption in the digestive tract was evidenced. More recent studies were focused on the potential role of KYNA in carcinogenesis and cancer therapy; however, the results were ambiguous and the biological activity of KYNA in these processes has not been unequivocally established. This review aims to summarize the current views on the relationship between KYNA and cancer. The differences in KYNA concentration between physiological conditions and cancer, as well as KYNA production by both normal and cancer cells, will be discussed. The review also describes the effect of KYNA on cancer cell proliferation and the known potential molecular mechanisms of this activity.
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Affiliation(s)
- Katarzyna Walczak
- Department of Pharmacology, Medical University of Lublin, Chodźki 4a, 20-093, Lublin, Poland.
| | - Artur Wnorowski
- Department of Biopharmacy, Medical University of Lublin, Chodźki 4a, 20-093, Lublin, Poland
| | - Waldemar A Turski
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego 8, 20-090, Lublin, Poland
| | - Tomasz Plech
- Department of Pharmacology, Medical University of Lublin, Chodźki 4a, 20-093, Lublin, Poland
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55
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The p38 Pathway: From Biology to Cancer Therapy. Int J Mol Sci 2020; 21:ijms21061913. [PMID: 32168915 PMCID: PMC7139330 DOI: 10.3390/ijms21061913] [Citation(s) in RCA: 215] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 12/27/2022] Open
Abstract
The p38 MAPK pathway is well known for its role in transducing stress signals from the environment. Many key players and regulatory mechanisms of this signaling cascade have been described to some extent. Nevertheless, p38 participates in a broad range of cellular activities, for many of which detailed molecular pictures are still lacking. Originally described as a tumor-suppressor kinase for its inhibitory role in RAS-dependent transformation, p38 can also function as a tumor promoter, as demonstrated by extensive experimental data. This finding has prompted the development of specific inhibitors that have been used in clinical trials to treat several human malignancies, although without much success to date. However, elucidating critical aspects of p38 biology, such as isoform-specific functions or its apparent dual nature during tumorigenesis, might open up new possibilities for therapy with unexpected potential. In this review, we provide an extensive description of the main biological functions of p38 and focus on recent studies that have addressed its role in cancer. Furthermore, we provide an updated overview of therapeutic strategies targeting p38 in cancer and promising alternatives currently being explored.
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56
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Stramucci L, Bossi G. Approaching the challenges of MKK3/p38delta MAPK targeting for therapeutic purpose in colorectal cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:504. [PMID: 31881903 PMCID: PMC6935053 DOI: 10.1186/s13046-019-1513-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/20/2019] [Indexed: 01/14/2023]
Abstract
MKK3 is a member of the dual specificity kinase group specific upstream activator of p38 MAPK proteins. We originally identified MKK3 as mutant p53 (mutp53) gain-of-function (GOF) upregulated target gene in different tumor models. To deeply investigate the MKK3 functions in cancer, taking advantage of a panel of authenticated colorectal cancer (CRC) lines and primary colonocytes, we found that MKK3 activates specifically p38delta MAPK protein, which signaling is further triggered by 5-fluorouracil (5-FU) treatments, a largely adopted chemotherapeutic drug in CRC clinical practice. The overall achieved results proposed the MKK3/p38delta MAPK as relevant molecular axis involved in abrogating efficacy to 5-FU treatments in CRC. This commentary will provide an overall discussion of the results that have been achieved contextualizing them in the overview of the knowledge in the p38 MAPK field in cancer disease.
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Affiliation(s)
- Lorenzo Stramucci
- Oncogenomic and Epigenetic Unit, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144, Rome, Italy
| | - Gianluca Bossi
- Oncogenomic and Epigenetic Unit, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144, Rome, Italy.
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57
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Mo'men YS, Hussein RM, Kandeil MA. A novel chemoprotective effect of tiopronin against diethylnitrosamine-induced hepatocellular carcinoma in rats: Role of ASK1/P38 MAPK-P53 signalling cascade. Clin Exp Pharmacol Physiol 2019; 47:322-332. [PMID: 31663622 DOI: 10.1111/1440-1681.13204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 10/18/2019] [Accepted: 10/28/2019] [Indexed: 12/16/2022]
Abstract
Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related death worldwide. Oxidative stress contributes significantly to HCC pathogenesis. In this study, we investigated the possible chemoprotective effect of the thiol group-containing compound, tiopronin, against HCC induced chemically by diethylnitrosamine (DENA) in rats. In addition, we elucidated the possible underlying molecular mechanism. Adult male Wistar rats were divided into: Control group, DENA-treated group and tiopronin + DENA-treated group. Liver function tests (ALT, AST, ALP, albumin, total and direct bilirubin) as well as alpha fetoprotein (AFP) concentration were measured in the sera of samples. Oxidative stress biomarkers such as malondialdehyde, nitric oxide, catalase and glutathione peroxidase were measured in the liver tissue homogenates. Determination of the phosphorylated apoptosis signal-regulating kinase 1 (phospho-ASK1), phospho-P38 and phospho-P53 proteins by western blotting, caspase 3 by immunofluorescence in addition to histopathological examination of the liver tissues were performed. Our results showed that tiopronin prevented the DENA-induced elevation of the liver function enzymes and AFP. It also preserved the activities of antioxidant enzymes as well as providing protection from the appearance of HCC histopathological features. Interestingly, tiopronin significantly decreased the expression level of phospho-ASK1, phospho-P38 and phospho-P53, caspase 3 in the liver tissues. These novel findings suggested that tiopronin is an antioxidant drug with a chemoprotective effect against DENA-induced HCC through maintaining the normal activity of ASK1/ P38 MAPK/ P53 signalling pathway.
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Affiliation(s)
- Yomna S Mo'men
- Department of Biochemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Rasha M Hussein
- Department of Biochemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt.,Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, Mutah University, Al-Karak, Jordan
| | - Mohamed A Kandeil
- Department of Biochemistry, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
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58
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Stramucci L, Pranteda A, Stravato A, Amoreo CA, Pennetti A, Diodoro MG, Bartolazzi A, Milella M, Bossi G. MKK3 sustains cell proliferation and survival through p38DELTA MAPK activation in colorectal cancer. Cell Death Dis 2019; 10:842. [PMID: 31695024 PMCID: PMC6834673 DOI: 10.1038/s41419-019-2083-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 10/04/2019] [Accepted: 10/18/2019] [Indexed: 01/04/2023]
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumors worldwide and understanding its underlying molecular mechanisms is crucial for the development of therapeutic strategies. The mitogen-activated protein kinase-kinase 3 (MKK3) is a specific activator of p38 MAP kinases (p38 MAPKs), which contributes to the regulation of several cellular functions, such as proliferation, differentiation, apoptosis as well as response to drugs. At present, the exact MKK3/p38 MAPK pathway contribution in cancer is heavily debated because of its pleiotropic function. In this work, we retrospectively explored the prognostic and pathobiologic relevance of MKK3 in a cohort of CRC patients and assessed MKK3 molecular functions in a panel of CRC lines and colonocytes primary cultures. We found increased MKK3 levels in late-stage CRC patients which correlated with shorter overall survival. Herein, we report that the MKK3 targeting by inducible RNA interference univocally exerts antitumor effects in CRC lines but not in primary colonocytes. While MKK3 depletion per se affects growth and survival by induction of sustained autophagy and death in some CRC lines, it potentiates response to chemotherapeutic drug 5-fluorouracil (5-FU) in all of the tested CRC lines in vitro. Here, we demonstrate for the first time that in CRC the MKK3 specifically activates p38delta MAPK isoform to sustain prosurvival signaling and that such effect is exacerbated upon 5-FU challenge. Indeed, p38delta MAPK silencing recapitulates MKK3 depletion effects in CRC cells in vitro and in vivo. Overall, our data identified a molecular mechanism through which MKK3 supports proliferation and survival signaling in CRC, further supporting MKK3 as a novel and extremely attractive therapeutic target for the development of promising strategies for the management of CRC patients.
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Affiliation(s)
- Lorenzo Stramucci
- Laboratory of Medical Physics and Expert Systems, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy.,Oncogenomic and Epigenetic Unit, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Angelina Pranteda
- Laboratory of Medical Physics and Expert Systems, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy.,Oncogenomic and Epigenetic Unit, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Arianna Stravato
- Laboratory of Medical Physics and Expert Systems, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy.,Oncogenomic and Epigenetic Unit, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Carla Azzurra Amoreo
- Department of Pathology, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Annarita Pennetti
- Department of Pathology, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Maria Grazia Diodoro
- Department of Pathology, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | | | - Michele Milella
- Medical Oncology 1, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy.,Oncology Section, Department of Medicine, University of Verona School of Medicine/Verona University Hospital Trust, 37134 Verona, Italy
| | - Gianluca Bossi
- Laboratory of Medical Physics and Expert Systems, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy. .,Oncogenomic and Epigenetic Unit, Department of Diagnostic Research and Technological Innovation, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy.
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59
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Braicu C, Buse M, Busuioc C, Drula R, Gulei D, Raduly L, Rusu A, Irimie A, Atanasov AG, Slaby O, Ionescu C, Berindan-Neagoe I. A Comprehensive Review on MAPK: A Promising Therapeutic Target in Cancer. Cancers (Basel) 2019; 11:cancers11101618. [PMID: 31652660 PMCID: PMC6827047 DOI: 10.3390/cancers11101618] [Citation(s) in RCA: 492] [Impact Index Per Article: 98.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/13/2019] [Accepted: 10/16/2019] [Indexed: 02/07/2023] Open
Abstract
The mitogen-activated protein kinase (MAPK) pathway is an important bridge in the switch from extracellular signals to intracellular responses. Alterations of signaling cascades are found in various diseases, including cancer, as a result of genetic and epigenetic changes. Numerous studies focused on both the homeostatic and the pathologic conduct of MAPK signaling; however, there is still much to be deciphered in terms of regulation and action models in both preclinical and clinical research. MAPK has implications in the response to cancer therapy, particularly the activation of the compensatory pathways in response to experimental MAPK inhibition. The present paper discusses new insights into MAPK as a complex cell signaling pathway with roles in the sustenance of cellular normal conduit, response to cancer therapy, and activation of compensatory pathways. Unfortunately, most MAPK inhibitors trigger resistance due to the activation of compensatory feed-back loops in tumor cells and tumor microenvironment components. Therefore, novel combinatorial therapies have to be implemented for cancer management in order to restrict the possibility of alternative pathway activation, as a perspective for developing novel therapies based on integration in translational studies.
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Affiliation(s)
- Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
| | - Mihail Buse
- MEDFUTURE-Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
| | - Constantin Busuioc
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
| | - Rares Drula
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
| | - Diana Gulei
- MEDFUTURE-Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
| | - Lajos Raduly
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
| | | | - Alexandru Irimie
- Department of Surgery, The Oncology Institute "Prof. Dr. Ion Chiricuta", 40015 Cluj-Napoca, Romania.
- Department of Surgical Oncology and Gynecological Oncology, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania.
| | - Atanas G Atanasov
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, 05-552 Magdalenka, Poland.
- Institute of Neurobiology, Bulgarian Academy of Sciences, 23 Acad. G. Bonchev str., 1113 Sofia, Bulgaria.
| | - Ondrej Slaby
- Central European Institute of Technology, Masaryk University, 601 77 Brno, Czech Republic.
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, 601 77 Brno, Czech Republic.
| | - Calin Ionescu
- th Surgical Department, Municipal Hospital, 400139, Cluj-Napoca, Romania.
- Department of Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
- MEDFUTURE-Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 40015 Cluj-Napoca, Romania.
- Department of Functional Genomics and Experimental Pathology, The Oncology Institute Prof. Dr. Ion Chiricuta, Republicii 34 Street, 400015 Cluj-Napoca, Romania.
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60
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Zou S, Zou P, Wang Y, Dong R, Wang J, Li N, Wang T, Zhou T, Chen Z, Zhang Y, Chen M, Zhou C, Zhang T, Luo L. ERp29 inhibition attenuates TCA toxicity via affecting p38/p53- dependent pathway in human trophoblast HTR-8/SVeno cells. Arch Biochem Biophys 2019; 676:108125. [PMID: 31586554 DOI: 10.1016/j.abb.2019.108125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 12/20/2022]
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is a liver disorder occurred in pregnant women, and the mechanism for such disease is still unclear. The bioinformatics analysis of our previous study has revealed the abnormal expression of endoplasmic reticulum protein 29 (ERp29) in placental tissue of ICP patients. In this study, the function of ERp29 was further explored using in vitro model of ICP. The results showed that up-regulation of ERp29 occurred in TCA (taurocholic acid)-treated human trophoblast HTR-8/SVeno cells, and ERp29 inhibition reversed TCA toxicity via attenuating G2/M arrest and cell apoptosis. Mechanical study revealed ERp29 inhibition suppressed phosphorylation and kinase activity of p38, thus subsequently affecting expression and phosphorylation of p53 (ser18) as well as the transcriptional activity of p53. The conduction of this study might confirm the important role of ERp29 in ICP and which would be helpful for the development of target therapeutic method for ICP.
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Affiliation(s)
- Shaohan Zou
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, 310000, Zhejiang Province, China
| | - Ping Zou
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Yao Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Ruirui Dong
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Jing Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Na Li
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Tiejun Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Tao Zhou
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Zhong Chen
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Yan Zhang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu Province, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu Province, China
| | - Conghua Zhou
- School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu Province, China
| | - Ting Zhang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China.
| | - Liang Luo
- The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, 214002, Jiangsu Province, China.
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61
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Zhao J, Sun T, Wu S, Liu Y. High Mobility Group Box 1: An Immune-regulatory Protein. Curr Gene Ther 2019; 19:100-109. [PMID: 31223085 DOI: 10.2174/1566523219666190621111604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/28/2019] [Accepted: 06/03/2019] [Indexed: 12/26/2022]
Abstract
High mobility group box 1 (HMGB1) presents in almost all somatic cells as a component of the cell nucleus. It is necessary for transcription regulation during cell development. Recent studies indicate that extracellular HMGB1, coming from necrotic cells or activated immune cells, triggers inflammatory response whereas intracellular HMGB1 controls the balance between autophagy and apoptosis. In addition, reduced HMGB1 can effectively mediate tissue regeneration. HMGB1, therefore, is regarded as a therapeutic target for inflammatory diseases. In this review, we summarized and discussed the immunomodulatory effect of HMGB1.
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Affiliation(s)
- Jingjing Zhao
- Department of Intensive Care Medicine, Hefei No. 2 People Hospital, Hefei 230000, China
| | - Tianle Sun
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215000, China
| | - Shengdi Wu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yufeng Liu
- Department of Nursing, General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Sánchez-Fernández EM, García-Moreno MI, Arroba AI, Aguilar-Diosdado M, Padrón JM, García-Hernández R, Gamarro F, Fustero S, Sánchez-Aparicio JE, Masgrau L, García Fernández JM, Ortiz Mellet C. Synthesis of polyfluoroalkyl sp 2-iminosugar glycolipids and evaluation of their immunomodulatory properties towards anti-tumor, anti-leishmanial and anti-inflammatory therapies. Eur J Med Chem 2019; 182:111604. [PMID: 31425910 DOI: 10.1016/j.ejmech.2019.111604] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/27/2019] [Accepted: 08/07/2019] [Indexed: 12/27/2022]
Abstract
Immunomodulatory glycolipids, among which α-galactosylceramide (KRN7000) is an iconic example, have shown strong therapeutic potential in a variety of conditions ranging from cancer and infection to autoimmune or neurodegenerative diseases. A main difficulty for those channels is that they often provoke a cytokine storm comprising both pro- and anti-inflammatory mediators that antagonize each other and negatively affect the immune response. The synthesis of analogues with narrower cytokine secretion-inducing capabilities is hampered by the intrinsic difficulty at controlling the stereochemical outcome in glycosidation reactions, particularly if targeting the α-anomer, which seriously hampers drug optimization strategies. Here we show that replacing the monosaccharide glycone by a sp2-iminosugar glycomimetic moiety allows accessing N-linked sp2-iminosugar glycolipids (sp2-IGLs) with total α-stereocontrol in a single step with no need of protecting groups or glycosidation promotors. The lipid tail has been then readily tailored by incorporating polyfluoroalkyl segments of varied lengths in view of favouring binding to the lipid binding site of the master p38 mitogen activated protein kinase (p38 MAPK), thereby polarizing the immune response in a cell-context dependent manner. The compounds have been evaluated for their antiproliferative, anti-leishmanial and anti-inflammatory activities in different cell assays. The size of the fluorous segment was found to be critical for the biological activity, probably by regulating the aggregation and membrane-crossing properties, whereas the hydroxylation profile (gluco or galacto-like) was less relevant. Biochemical and computational data further support a mechanism of action implying binding to the allosteric lipid binding site of p38 MAPK and subsequent activation of the noncanonical autophosphorylation route. The ensemble of results provide a proof of concept of the potential of sp2-IGLs as immunoregulators.
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Affiliation(s)
- Elena M Sánchez-Fernández
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/ Profesor García González 1, 41012, Seville, Spain.
| | - Ma Isabel García-Moreno
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/ Profesor García González 1, 41012, Seville, Spain
| | - Ana I Arroba
- Biomedical Research and Innovation Institute of Cádiz (INiBICA) Research Unit, Puerta del Mar University Hospital, Av/ Ana de Viya 21, 11009, Cádiz, Spain; Research Unit, Jerez University Hospital, Carretera Circunvalación s/n, 11407, Jerez de la Frontera, Spain.
| | - Manuel Aguilar-Diosdado
- Biomedical Research and Innovation Institute of Cádiz (INiBICA) Research Unit, Puerta del Mar University Hospital, Av/ Ana de Viya 21, 11009, Cádiz, Spain; Research Unit, Jerez University Hospital, Carretera Circunvalación s/n, 11407, Jerez de la Frontera, Spain
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de la Laguna, PO BOX 456, 38200, La Laguna, Spain
| | - Raquel García-Hernández
- Instituto de Parasitología y Biomedicina "López Neyra", IPBLN-CSIC, Parque Tecnológico de Ciencias de la Salud, 18016, Granada, Spain
| | - Francisco Gamarro
- Instituto de Parasitología y Biomedicina "López Neyra", IPBLN-CSIC, Parque Tecnológico de Ciencias de la Salud, 18016, Granada, Spain
| | - Santos Fustero
- Department of Organic Chemistry, Universidad de Valencia, 46100, Burjassot, Spain
| | | | - Laura Masgrau
- Department of Chemistry, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - José Manuel García Fernández
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, C/ Américo Vespucio 49, Isla de la Cartuja, 41092, Sevilla, Spain
| | - Carmen Ortiz Mellet
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/ Profesor García González 1, 41012, Seville, Spain.
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63
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Liu M, Ai W, Sun L, Fang F, Wang X, Chen S, Wang H. Triclosan-induced liver injury in zebrafish (Danio rerio) via regulating MAPK/p53 signaling pathway. Comp Biochem Physiol C Toxicol Pharmacol 2019; 222:108-117. [PMID: 31048017 DOI: 10.1016/j.cbpc.2019.04.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 04/26/2019] [Accepted: 04/26/2019] [Indexed: 12/13/2022]
Abstract
Long-term exposure of triclosan (TCS), an important antimicrobial agent, can lead to deleterious effects on liver growth and development. However, the related mechanisms on TCS-induced hepatocyte injury remain unclear. Herein, we found that after long-time TCS exposure to adult zebrafish (Danio rerio) from 6 hpf (hours post-fertilization) to 90 dpf (days post-fertilization), the body weight and hepatic weight were significantly increased in concomitant with a large amount of lipid droplet accumulation in liver. Also, TCS exposure resulted in occurrence of oxidative stress by increasing the concentrations of malondialdehyde and reducing the activity of superoxide dismutase both in zebrafish larvae (120 hpf) and adult liver. By H&E staining, we observed a series of abnormal phenomena such as severely hepatocellular atrophy and necrosis, as well as prominently increased hepatic plate gap in TCS-exposure treatment groups. Through AO staining, TCS induced obvious apoptosis in larval heart and liver; through TUNEL assay, a concentration-dependent apoptosis was found to mainly occur in adult liver and its surrounding tissues. The mRNA and protein expression of anti-apoptotic protein Bcl-2 decreased, while that of pro-apoptosis protein Bax significantly increased, identifying that liver injury was closely related to hepatocyte apoptosis. The significant up-regulation of MAPK and p53 at both mRNA and protein levels proved that TCS-induced hepatocyte apoptosis was closely related to activating the MAPK/p53 signaling pathway. These results strongly suggest that long-term TCS-exposure may pose a great injury to zebrafish liver development by means of activating MAPK/p53 apoptotic signaling pathway, also lay theoretical foundation for further assessing TCS-induced ecological healthy risk.
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Affiliation(s)
- Mi Liu
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Weiming Ai
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.
| | - Limei Sun
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Fang Fang
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Xuedong Wang
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Shaobo Chen
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Zhejiang Mariculture Research Institute, Wenzhou 325005, China.
| | - Huili Wang
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.
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64
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Gräb J, Rybniker J. The Expanding Role of p38 Mitogen-Activated Protein Kinase in Programmed Host Cell Death. Microbiol Insights 2019; 12:1178636119864594. [PMID: 31384128 PMCID: PMC6657118 DOI: 10.1177/1178636119864594] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 06/27/2019] [Indexed: 11/15/2022] Open
Abstract
The p38 mitogen-activated protein kinase (MAPK) is involved in a multitude of
essential cellular processes. The kinase is activated in response to
environmental stresses, including bacterial infections and inflammation, to
regulate the immune response of the host. However, recent studies have
demonstrated that pathogens can manipulate p38 MAPK signaling for their own
benefit to either prevent or induce host cell apoptosis. In addition, there is
evidence demonstrating that p38 MAPK is a potent trigger of pathogen-induced
necrosis driven by mitochondrial membrane disruption. Given the large number of
p38 MAPK inhibitors that have been tested in clinical trials, these findings
provide an opportunity to repurpose these drugs for improved control of
infectious diseases.
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Affiliation(s)
- Jessica Gräb
- Department I of Internal Medicine, Division of Infectious Diseases, University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Jan Rybniker
- Department I of Internal Medicine, Division of Infectious Diseases, University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
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65
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Baliza IRS, Silva SLR, Santos LDS, Neto JHA, Dias RB, Sales CBS, Rocha CAG, Soares MBP, Batista AA, Bezerra DP. Ruthenium Complexes With Piplartine Cause Apoptosis Through MAPK Signaling by a p53-Dependent Pathway in Human Colon Carcinoma Cells and Inhibit Tumor Development in a Xenograft Model. Front Oncol 2019; 9:582. [PMID: 31334116 PMCID: PMC6616125 DOI: 10.3389/fonc.2019.00582] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 06/14/2019] [Indexed: 01/22/2023] Open
Abstract
Ruthenium complexes with piplartine, [Ru(piplartine)(dppf)(bipy)](PF6)2 (1) and [Ru(piplartine)(dppb)(bipy)](PF6)2 (2) (dppf = 1,1-bis(diphenylphosphino) ferrocene; dppb = 1,4-bis(diphenylphosphino)butane and bipy = 2,2′-bipyridine), were recently synthesized and displayed more potent cytotoxicity than piplartine in different cancer cells, regulated RNA transcripts of several apoptosis-related genes, and induced reactive oxygen species (ROS)-mediated apoptosis in human colon carcinoma HCT116 cells. The present work aimed to explore the underlying mechanisms through which these ruthenium complexes induce cell death in HCT116 cells in vitro, as well as their in vivo action in a xenograft model. Both complexes significantly increased the percentage of apoptotic HCT116 cells, and co-treatment with inhibitors of JNK/SAPK, p38 MAPK, and MEK, which inhibits the activation of ERK1/2, significantly reduced the apoptosis rate induced by these complexes. Moreover, significant increase in phospho-JNK2 (T183/Y185), phospho-p38α (T180/Y182), and phospho-ERK1 (T202/Y204) expressions were observed in cells treated with these complexes, indicating MAPK-mediated apoptosis. In addition, co-treatment with a p53 inhibitor (cyclic pifithrin-α) and the ruthenium complexes significantly reduced the apoptosis rate in HCT116 cells, and increased phospho-p53 (S15) and phospho-histone H2AX (S139) expressions, indicating induction of DNA damage and p53-dependent apoptosis. Both complexes also reduced HCT116 cell growth in a xenograft model. Tumor mass inhibition rates were 35.06, 29.71, and 32.03% for the complex 1 (15 μmol/kg/day), complex 2 (15 μmol/kg/day), and piplartine (60 μmol/kg/day), respectively. These data indicate these ruthenium complexes as new anti-colon cancer drugs candidates.
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Affiliation(s)
- Ingrid R S Baliza
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Suellen L R Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Luciano de S Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - João H Araujo Neto
- Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Caroline B S Sales
- Department of Biomorphology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | | | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Alzir A Batista
- Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
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66
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Zhou J, Ma W, Wang X, Liu H, Miao Y, Wang J, Du P, Chen Y, Zhang Y, Liu Z. Matrine Suppresses Reactive Oxygen Species (ROS)-Mediated MKKs/p38-Induced Inflammation in Oxidized Low-Density Lipoprotein (ox-LDL)-Stimulated Macrophages. Med Sci Monit 2019; 25:4130-4136. [PMID: 31156213 PMCID: PMC6561390 DOI: 10.12659/msm.917151] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background The objective of this study was to study the anti-inflammatory effect and possibly involved molecular mechanisms of matrine on oxidized low-density lipoprotein (ox-LDL)-exposed macrophages. Material/Methods Cultured human macrophages (THP-1 cell line) were exposed to ox-LDL at final concentrations of 0, 25, 50, and 100 μg/mL. Several cells were then treated with matrine at serial diluted concentrations. 2,7-Dichlorodi-hydrofluorescein diacetate (DCFH-DA) staining was used to evaluate reactive oxygen species (ROS) production; a colorimetric method was used to determine the cellular antioxidant capacity; production of pro-inflammatory cytokines interleukin (IL)18 and tumor necrosis factor (TNF)α were determined by enzyme-linked immunosorbent assay (ELISA); and immunoblot assay was used to assess the relative protein phosphorylation and expression. Results ox-LDL exposure significantly elevated intracellular ROS level and supernatant IL18 and TNFα concentrations, but impaired total antioxidant capacity (TAC) of macrophages. The relative phosphorylations of MAPK kinase kinases (MKK)6, MKK3, and p38 mitogen-activated protein kinases (MAPK) were increased by ox-LDL exposure. The expression levels of IL18 and TNFα were also increased in ox-LDL-treated macrophages. The matrine treatment reduced intracellular ROS level and supernatant IL18 and TNFα concentrations and increased TAC in a concentration- dependent manner. The relative phosphorylations of MKK6, MKK3, and p38 MAPK were reduced after matrine administration. Moreover, the expression levels of IL18 and TNFα were also decreased by matrine treatment, in a concentration-dependent manner. Conclusions ox-LDL increases inflammatory response in macrophages by activating the ROS-mediated MKKs/p38 MAPK-induced inflammatory signaling pathway. Matrine suppresses ox-LDL-induced inflammatory by inhibiting the MKKs/p38 MAPK signaling pathway.
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Affiliation(s)
- Junli Zhou
- Department of Cardiology, Zhouzhi County People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Wangxia Ma
- Department of Cardiology, Zhouzhi County People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Xincheng Wang
- Department of Cardiology, Zhouzhi County People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Hongbo Liu
- Department of Cardiology, Zhouzhi County People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Youliang Miao
- Department of Cardiology, Zhouzhi County People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Juanli Wang
- Department of Cardiology, Zhouzhi County People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Peng Du
- Department of Cardiology, Zhouzhi County People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Yani Chen
- Department of Cardiology, Zhouzhi County People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Yong Zhang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Zhongwei Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China (mainland)
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67
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Zhu WQ, Yu YJ, Xu LN, Ming PP, Shao SY, Qiu J. Regulation of osteoblast behaviors via cross-talk between Hippo/YAP and MAPK signaling pathway under fluoride exposure. J Mol Med (Berl) 2019; 97:1003-1017. [PMID: 31055605 DOI: 10.1007/s00109-019-01785-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 03/26/2019] [Accepted: 04/01/2019] [Indexed: 12/18/2022]
Abstract
Titanium is widely used in implant materials, while excessive fluoride may have negative effects on the osseointegration between the titanium and osteoblasts. Although the underlying mechanisms are still not clear, the mitogen-activated protein kinase (MAPK) or Yes-associated protein (YAP) signaling pathways are thought to be involved. This study evaluated the role of Hippo/YAP and MAPK signaling pathway in osteoblast behaviors under excessive fluoride exposure in vitro and in vivo. Commercially pure Ti (cp-Ti) samples were exposed to fluoride (0, 0.1, and 1.0 mM NaF) for 7 days. Cell adhesion was observed using a laser scanning confocal microscope. Cell viability and apoptosis were evaluated by CCK-8 assay and flow cytometry, respectively. The expressions of osteoblast markers and key molecules in MAPK and YAP pathway were detected by Western blot. In vivo studies were evaluated by histology methods in C57/BL6 mice model. Our results showed that 1.0 mM NaF destroyed the passivation film on cp-Ti surface, which further inhibited the osteoblast adhesion and spreading. Meanwhile, compared to other groups, 1.0 mM NaF led to a remarkable reduction in cell viability (P < 0.05), as well as increased apoptosis (P < 0.05) and downregulation of osteogenesis protein expression (P < 0.05). MAPK and YAP signaling pathways were also activated under 1.0 mM NaF exposure, and JNK seemed to regulate YAP phosphorylation in response to NaF impacts on osteoblasts. In vivo fluorosis mouse model further indicated that 100 ppm NaF group (high fluoride group) increased bone resorption and inhibited the nuclear translocation of YAP. The osteoblast behaviors were negatively altered under excessive fluoride, and MAPK/JNK axis contributed to YAP signaling activation in regulating NaF-induced osteoblast behaviors. KEY MESSAGES: • Excessive fluoride inhibited osteoblast behaviors and bone formation. • YAP and MAPK signaling pathways were activated in osteoblasts under fluoride exposure. • Fluoride regulated osteoblast behaviors via the cross-talk between YAP and MAPK.
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Affiliation(s)
- Wen-Qing Zhu
- Department of Oral Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, People's Republic of China
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, People's Republic of China
| | - Ying-Juan Yu
- Department of Oral Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, People's Republic of China
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, People's Republic of China
| | - Li-Na Xu
- Department of Oral Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, People's Republic of China
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, People's Republic of China
| | - Pan-Pan Ming
- Department of Stomatology, Sir Run Run Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Shui-Yi Shao
- Department of Oral Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, People's Republic of China
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, People's Republic of China
| | - Jing Qiu
- Department of Oral Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, People's Republic of China.
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, People's Republic of China.
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68
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Zhang J, Li L, Zhang Q, Yang X, Zhang C, Zhang X, Zhang D, Lv Y, Song H, Chen B, Liu Y, Hu J, Huang Y. Phosphorylation of Microtubule- Associated Protein 4 Promotes Hypoxic Endothelial Cell Migration and Proliferation. Front Pharmacol 2019; 10:368. [PMID: 31040780 PMCID: PMC6476958 DOI: 10.3389/fphar.2019.00368] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 03/25/2019] [Indexed: 12/13/2022] Open
Abstract
Endothelial cells play a critical role in the process of angiogenesis during skin wound healing. The migration and proliferation of endothelial cells are processes that are initiated by the hypoxic microenvironment in a wound, but the underlying mechanisms remain largely unknown. Here, we identified a novel role for microtubule-associated protein 4 (MAP4) in angiogenesis. We firstly demonstrated that MAP4 phosphorylation was induced in hypoxic endothelial cells; the increase in MAP4 phosphorylation enhanced the migration and proliferation of endothelial cells. We also found that hypoxia (2% O2) activated p38/mitogen-activated protein kinase (MAPK) signaling, and we identified p38/MAPK as an upstream regulator of MAP4 phosphorylation in endothelial cells. Moreover, we showed that the promigration and proproliferation effects of MAP4 phosphorylation were attributed to its role in microtubule dynamics. These results indicated that MAP4 phosphorylation induced by p38/MAPK signaling promotes angiogenesis by inducing the proliferation and migration of endothelial cells cultured under hypoxic conditions via microtubule dynamics regulation. These findings provide new insights into the potential mechanisms underlying the initiation of the migration and proliferation of endothelial cells.
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Affiliation(s)
- Junhui Zhang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Lingfei Li
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Qiong Zhang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xu Yang
- Department of Respiratory Medicine, The 983 Hospital of Joint Logistics Support Force of the Chinese People's Liberation Army, Tianjin, China
| | - Can Zhang
- Department of Plastic Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xingyue Zhang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Dongxia Zhang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yanling Lv
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Huapei Song
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Bing Chen
- Endocrinology Department, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yao Liu
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jiongyu Hu
- State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Endocrinology Department, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yuesheng Huang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
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69
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Crosstalk between p38 and Erk 1/2 in Downregulation of FGF1-Induced Signaling. Int J Mol Sci 2019; 20:ijms20081826. [PMID: 31013829 PMCID: PMC6514807 DOI: 10.3390/ijms20081826] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 01/25/2019] [Accepted: 04/10/2019] [Indexed: 11/16/2022] Open
Abstract
Mitogen-activated protein kinases (MAPK): Erk1 and Erk2 are key players in negative-feedback regulation of fibroblast growth factor (FGF) signaling. Upon activation, Erk1 and Erk2 directly phosphorylate FGF receptor 1 (FGFR1) at a specific serine residue in the C-terminal part of the receptor, substantially reducing the tyrosine phosphorylation in the receptor kinase domain and its signaling. Similarly, active Erks can also phosphorylate multiple threonine residues in the docking protein FGF receptor substrate 2 (FRS2), a major mediator of FGFR signaling. Here, we demonstrate that in NIH3T3 mouse fibroblasts and human osteosarcoma U2OS cells stably expressing FGFR1, in addition to Erk1 and Erk2, p38 kinase is able to phosphorylate FRS2. Simultaneous inhibition of Erk1/2 and p38 kinase led to a significant change in the phosphorylation pattern of FRS2 that in turn resulted in prolonged tyrosine phosphorylation of FGFR1 and FRS2 and in sustained signaling, as compared to the selective inhibition of Erks. Furthermore, excessive activation of p38 with anisomycin partially compensated the lack of Erks activity. These experiments reveal a novel crosstalk between p38 and Erk1/2 in downregulation of FGF-induced signaling.
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70
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Valletti A, Marzano F, Pesole G, Sbisà E, Tullo A. Targeting Chemoresistant Tumors: Could TRIM Proteins-p53 Axis Be a Possible Answer? Int J Mol Sci 2019; 20:ijms20071776. [PMID: 30974870 PMCID: PMC6479553 DOI: 10.3390/ijms20071776] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/03/2019] [Accepted: 04/08/2019] [Indexed: 12/20/2022] Open
Abstract
Chemosensitivity is a crucial feature for all tumours so that they can be successfully treated, but the huge heterogeneity of these diseases, to be intended both inter- and intra-tumour, makes it a hard-to-win battle. Indeed, this genotypic and phenotypic variety, together with the adaptability of tumours, results in a plethora of chemoresistance acquisition mechanisms strongly affecting the effectiveness of treatments at different levels. Tripartite motif (TRIM) proteins are shown to be involved in some of these mechanisms thanks to their E3-ubiquitin ligase activity, but also to other activities they can exert in several cellular pathways. Undoubtedly, the ability to regulate the stability and activity of the p53 tumour suppressor protein, shared by many of the TRIMs, represents the preeminent link between this protein family and chemoresistance. Indeed, they can modulate p53 degradation, localization and subset of transactivated target genes, shifting the cellular response towards a cytoprotective or cytotoxic reaction to whatever damage induced by therapy, sometimes in a cellular-dependent way. The involvement in other chemoresistance acquisition mechanisms, independent by p53, is known, affecting pivotal processes like PI3K/Akt/NF-κB signalling transduction or Wnt/beta catenin pathway, to name a few. Hence, the inhibition or the enhancement of TRIM proteins functionality could be worth investigating to better understand chemoresistance and as a strategy to increase effectiveness of anticancer therapies.
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Affiliation(s)
- Alessio Valletti
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro"-Policlinico, Piazza G. Cesare, 11, 70124 Bari, Italy.
| | - Flaviana Marzano
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnology, National Research Council-CNR, Via Amendola 122/O, 70126 Bari, Italy.
| | - Graziano Pesole
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnology, National Research Council-CNR, Via Amendola 122/O, 70126 Bari, Italy.
- Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari "A. Moro", Via Orabona 4, 70126 Bari, Italy.
| | - Elisabetta Sbisà
- Institute of Biomedical Technologies, National Research Council-CNR, Via Amendola 122/d, 70126 Bari, Italy.
| | - Apollonia Tullo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnology, National Research Council-CNR, Via Amendola 122/O, 70126 Bari, Italy.
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Abstract
This special issue on p53 explores different aspects of the significance of p53 in normal cells and in cancer [...].
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Systematic Review of the Potential of MicroRNAs in Diffuse Large B Cell Lymphoma. Cancers (Basel) 2019; 11:cancers11020144. [PMID: 30691158 PMCID: PMC6406874 DOI: 10.3390/cancers11020144] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/15/2019] [Accepted: 01/22/2019] [Indexed: 02/08/2023] Open
Abstract
Diffuse large B cell lymphoma (DLBCL) is the most common subtype of invasive non-Hodgkin’s lymphoma (NHL). DLBCL presents with variable backgrounds, which results in heterogeneous outcomes among patients. Although new tools have been developed for the classification and management of patients, 40% of them still have primary refractory disease or relapse. In addition, multiple factors regarding the pathogenesis of this disease remain unclear and identification of novel biomarkers is needed. In this context, recent investigations point to microRNAs as useful biomarkers in cancer. The aim of this systematic review was to provide new insight into the role of miRNAs in the diagnosis, classification, treatment response and prognosis of DLBCL patients. We used the following terms in PubMed” ((‘Non-coding RNA’) OR (‘microRNA’ OR ‘miRNA’ OR ‘miR’) OR (‘exosome’) OR (‘extracellular vesicle’) OR (‘secretome’)) AND (‘Diffuse large B cell lymphoma’ OR ‘DLBCL’)” to search for studies evaluating miRNAs as a diagnosis, subtype, treatment response or prognosis biomarkers in primary DLBCL in human patient populations. As a result, the analysis was restricted to the role of miRNAs in tumor tissue and we did not consider circulating miRNAs. A total of thirty-six studies met the inclusion criteria. Among them, twenty-one were classified in the diagnosis category, twenty in classification, five in treatment response and nineteen in prognosis. In this review, we have identified miR-155-5p and miR-21-5p as miRNAs of potential utility for diagnosis, while miR-155-5p and miR-221-3p could be useful for classification. Further studies are needed to exploit the potential of this field.
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