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Huo Q, Yue T, Li W, Wang X, Dong Y, Li D. Empagliflozin attenuates radiation-induced hematopoietic damage via NOX-4/ROS/p38 pathway. Life Sci 2024; 341:122486. [PMID: 38331314 DOI: 10.1016/j.lfs.2024.122486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/21/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
PURPOSE Damage to the hematopoietic system and functional inhibition are severe consequences of radiation exposure. In this study, we have investigated the effect of empagliflozin on radiation-induced hematopoietic damage, with the aim of providing new preventive approach to such injuries. METHODS AND MATERIALS Mice were given 4 Gy total body irradiation (TBI) 1 h after the oral administration of empagliflozin, followed by the continuous administration of the same dose of empagliflozin for 6d, and then sacrificed on the 10th day after irradiation. The reactive oxygen species (ROS) levels in hematopoietic cells and their regulatory mechanisms were also been investigated. Colony forming unit granulocyte macrophage assay and bone marrow transplantation assays were performed to detect the function of the bone marrow cells. KEY FINDINGS Empagliflozin increased the cell viability, reduced ROS levels, and attenuated apoptosis in vitro after the bone marrow cells were exposed to 1 Gy radiation. Empagliflozin significantly attenuated ionizing radiation injuries to the hematopoietic system, increased the peripheral blood cell count, and enhanced the proportion and function of hematopoietic stem cells in mice exposed to 4 Gy TBI. These effects may be related to the NOX-4/ROS/p38 pathway-mediated suppression of MAPK in hematopoietic stem cells. Empagliflozin also influenced the expression of Nrf-2 and increased glutathione peroxidase activity, thereby promoting the clearance of reactive oxygen species. Furthermore, empagliflozin mitigated metabolic abnormalities by inhibiting the mammalian target of rapamycin. SIGNIFICANCE Our study has demonstrated that empagliflozin can reduce radiation-induced injury in hematopoietic stem cells. This finding suggests that empagliflozin is a promising novel agent for preventing radiation-induced damage to the hematopoietic system.
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Affiliation(s)
- Qidong Huo
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Tongpeng Yue
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Wenxuan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Xinyue Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Yinping Dong
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China.
| | - Deguan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China.
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Yu X, Wu Q, Ren Z, Chen B, Wang D, Yuan T, Ding H, Wang Y, Yuan G, Wang Y, Zhang L, Zhao J, Sun Z. Kaempferol attenuates wear particle-induced inflammatory osteolysis via JNK and p38-MAPK signaling pathways. J Ethnopharmacol 2024; 318:117019. [PMID: 37574017 DOI: 10.1016/j.jep.2023.117019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 08/06/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Wear particle-induced inflammatory osteoclast activation is a master contributor to periprosthetic osteolysis, which can cause pathological bone loss and destruction. Hence, inhibiting inflammation and osteoclastogenesis is an important strategy for preventing wear particle-induced osteolysis. To date, there are no FDA-approved non-surgical pharmacotherapies for arresting periprosthetic osteolysis. Kaempferol (KAE), a natural flavonol abundant in many traditional Chinese herbal medicines, has been shown to have protective effects against inflammatory bone diseases such as rheumatoid arthritis, but no previous study has evaluated the effects of KAE on wear particle-induced osteolysis. AIM OF THE STUDY The study aimed to investigate the effects of KAE on wear particle-induced inflammatory osteolysis and osteoclast activation, and further explore the underlying mechanisms. MATERIALS AND METHODS TiAl6V4 metal particles (TiPs) were retrieved from the prosthesis of patients who underwent revision hip arthroplasty due to aseptic loosening. A mouse calvarial osteolysis model was used to investigate the effects of KAE on wear particle-induced inflammatory osteolysis in vivo. Primary bone marrow-derived macrophages (BMMs) were used to explore the effects of KAE on osteoclast differentiation and bone-resorbing activity as well as the underlying mechanisms in vitro. RESULTS In the present study, we found that KAE alleviated wear particle-induced inflammatory bone loss in vivo and inhibited osteoclast differentiation and function in vitro. Furthermore, we revealed that KAE exerted anti-osteoclastogenic effects by downregulating JNK and p38-MAPK signaling as well as the downstream NFATc1 expression. CONCLUSIONS KAE is an alternative therapeutic agent for preventing and treating periprosthetic osteolysis and aseptic loosening.
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Affiliation(s)
- Xin Yu
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Qi Wu
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China; Department of Vascular Surgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, 102218, China
| | - Zhengrong Ren
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, 210023, China
| | - Bin Chen
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Dongsheng Wang
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Tao Yuan
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Hao Ding
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Yang Wang
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Guodong Yuan
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Yuxiang Wang
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Lei Zhang
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China.
| | - Jianning Zhao
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China.
| | - Zhongyang Sun
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, 210093, China; Department of Orthopedics, Air Force Hospital of Eastern Theater, Anhui Medical University, Nanjing, 210002, China.
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Franco FN, de Cassia Cardoso L, Silva BNM, de Araújo GR, Chaves MM. Aging: silencing the PKA and AkT/PKB signaling pathways alters the antioxidant capacity of resveratrol. Biogerontology 2023; 24:913-923. [PMID: 37458859 DOI: 10.1007/s10522-023-10046-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 06/13/2023] [Indexed: 10/31/2023]
Abstract
One of the theories related to aging is the increase in oxidative stress. Given this, the objective of the study is to evaluate the cellular mechanisms responsible for the resveratrol antioxidant effect on leukocytes from donors aged between 20 and 80 years old. For this, leukocytes from donors of three age groups (20-39, 40-59 and 60-80) were isolated. Image-iT™LIVE Green Reactive Oxygen Species (ROS) Kit was used. Reactive Nitrogen Species (RNS) analysis was performed by measuring nitric oxide and peroxynitrite. The PKA, Akt/PKB and p38-MAPK were evaluated by chemiluminescence. The statistical analysis between age and treatments were performed by Pearson correlation (*p < 0.05). It was possible to observe the antioxidant effect of resveratrol in all age groups. The correlation results show loss of resveratrol effect in decreasing ROS in leukocytes from older donors. We observed an active antioxidant effect of p38-MAPK in all ages, with resveratrol acting on it. The PKA and Akt/PKB were active in leukocytes from donors aged 20-59. In cells from donors older than 60, these pathways are silenced, and an effect is also not observed in cells treated with resveratrol. Therefore, resveratrol showed antioxidant effect in all age, although it was more pronounced in leukocytes from younger. One of resveratrol's mechanisms is due to the activation of the PKA and Akt/PKB, which were activated in younger donor cells.
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Affiliation(s)
- Filipe Nogueira Franco
- Biochemistry Laboratory of Aging and Correlated Diseases, Department of Biochemistry and Immunology, Biological Sciences Institute, Federal University of Minas Gerais, UFMG, Av. Antônio Carlos 6627, Belo Horizonte, MG, 30161-970, Brazil
| | - Luciana de Cassia Cardoso
- Biochemistry Laboratory of Aging and Correlated Diseases, Department of Biochemistry and Immunology, Biological Sciences Institute, Federal University of Minas Gerais, UFMG, Av. Antônio Carlos 6627, Belo Horizonte, MG, 30161-970, Brazil
| | - Bárbara Néllita Moura Silva
- Biochemistry Laboratory of Aging and Correlated Diseases, Department of Biochemistry and Immunology, Biological Sciences Institute, Federal University of Minas Gerais, UFMG, Av. Antônio Carlos 6627, Belo Horizonte, MG, 30161-970, Brazil
| | - Glaucy Rodrigues de Araújo
- Biochemistry Laboratory of Aging and Correlated Diseases, Department of Biochemistry and Immunology, Biological Sciences Institute, Federal University of Minas Gerais, UFMG, Av. Antônio Carlos 6627, Belo Horizonte, MG, 30161-970, Brazil
| | - Miriam Martins Chaves
- Biochemistry Laboratory of Aging and Correlated Diseases, Department of Biochemistry and Immunology, Biological Sciences Institute, Federal University of Minas Gerais, UFMG, Av. Antônio Carlos 6627, Belo Horizonte, MG, 30161-970, Brazil.
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Aoki Y, Dai H, Furuta F, Akamatsu T, Oshima T, Takahashi N, Goto YI, Oka A, Itoh M. LOX-1 mediates inflammatory activation of microglial cells through the p38-MAPK/NF-κB pathways under hypoxic-ischemic conditions. Cell Commun Signal 2023; 21:126. [PMID: 37268943 DOI: 10.1186/s12964-023-01048-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/14/2023] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND Microglial cells play an important role in the immune system in the brain. Activated microglial cells are not only injurious but also neuroprotective. We confirmed marked lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) expression in microglial cells in pathological lesions in the neonatal hypoxic-ischemic encephalopathy (nHIE) model brain. LOX-1 is known to be an activator of cytokines and chemokines through intracellular pathways. Here, we investigated a novel role of LOX-1 and the molecular mechanism of LOX-1 gene transcription microglial cells under hypoxic and ischemic conditions. METHODS We isolated primary rat microglial cells from 3-day-old rat brains and confirmed that the isolated cells showed more than 98% Iba-1 positivity with immunocytochemistry. We treated primary rat microglial cells with oxygen glucose deprivation (OGD) as an in vitro model of nHIE. Then, we evaluated the expression levels of LOX-1, cytokines and chemokines in cells treated with or without siRNA and inhibitors compared with those of cells that did not receive OGD-treatment. To confirm transcription factor binding to the OLR-1 gene promoter under the OGD conditions, we performed a luciferase reporter assay and chromatin immunoprecipitation assay. In addition, we analyzed reactive oxygen species and cell viability. RESULTS We found that defects in oxygen and nutrition induced LOX-1 expression and led to the production of inflammatory mediators, such as the cytokines IL-1β, IL-6 and TNF-α; the chemokines CCL2, CCL5 and CCL3; and reactive oxygen/nitrogen species. Then, the LOX-1 signal transduction pathway was blocked by inhibitors, LOX-1 siRNA, the p38-MAPK inhibitor SB203580 and the NF-κB inhibitor BAY11-7082 suppressed the production of inflammatory mediators. We found that NF-κB and HIF-1α bind to the promoter region of the OLR-1 gene. Based on the results of the luciferase reporter assay, NF-κB has strong transcriptional activity. Moreover, we demonstrated that LOX-1 in microglial cells was autonomously overexpressed by positive feedback of the intracellular LOX-1 pathway. CONCLUSION The hypoxic/ischemic conditions of microglial cells induced LOX-1 expression and activated the immune system. LOX-1 and its related molecules or chemicals may be major therapeutic candidates. Video abstract.
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Affiliation(s)
- Yoshinori Aoki
- Department of Mental Retardation and Birth Defect Research, National Institute of Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Pediatrics, Faculty of Medicine, University of Miyazaki, Kiyotake-cho Kihara 5200, Miyazaki, 889-1692, Japan
| | - Hongmei Dai
- Department of Mental Retardation and Birth Defect Research, National Institute of Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Fumika Furuta
- Department of Mental Retardation and Birth Defect Research, National Institute of Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Tomohisa Akamatsu
- Department of Mental Retardation and Birth Defect Research, National Institute of Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Pediatrics, Center Hospital of the National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, Japan
| | - Takuya Oshima
- Department of Mental Retardation and Birth Defect Research, National Institute of Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Naoto Takahashi
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yu-Ichi Goto
- Department of Mental Retardation and Birth Defect Research, National Institute of Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Akira Oka
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Saitama Children's Medical Center, 1-2 Shintoshin, Chuo-ku, Saitama, Japan
| | - Masayuki Itoh
- Department of Mental Retardation and Birth Defect Research, National Institute of Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
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Wang MJ, Yang BR, Jing XY, Wang YZ, Kang L, Ren K, Kang L. P2Y1R and P2Y2R: potential molecular triggers in muscle regeneration. Purinergic Signal 2023; 19:305-13. [PMID: 35902482 DOI: 10.1007/s11302-022-09885-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 07/07/2022] [Indexed: 10/16/2022] Open
Abstract
Muscle regeneration is indispensable for skeletal muscle health and daily life when injury, muscular disease, and aging occur. Among the muscle regeneration, muscle stem cells' (MuSCs) activation, proliferation, and differentiation play a key role in muscle regeneration. Purines bind to its specific receptors during muscle development, which transmit environmental stimuli and play a crucial role of modulator of muscle regeneration. Evidences proved P2R expression during development and regeneration of skeletal muscle, both in human and mouse. In contrast to P2XR, which have been extensively investigated in skeletal muscles, the knowledge of P2YR in this tissue is less comprehensive. This review summarized muscle regeneration via P2Y1R and P2Y2R and speculated that P2Y1R and P2Y2R might be potential molecular triggers for MuSCs' activation and proliferation via the p-ERK1/2 and PLC pathways, explored their cascade effects on skeletal muscle, and proposed P2Y1/2 receptors as potential pharmacological targets in muscle regeneration, to advance the purinergic signaling within muscle and provide promising strategies for alleviating muscular disease.
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Li J, Ma F. Polo-Like Kinase 2 Is Identified in Hypertrophy, Extracellular Matrix Accumulation, and Oxidative Stress of Mesangial Cells in Diabetic Nephropathy through p38-MAPK Signaling. Ann Clin Lab Sci 2023; 53:192-199. [PMID: 37094847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
OBJECTIVE The dysfunction of mesangial cells is a key contributor to the pathogenesis of diabetic nephropathy, while the underlying molecular basis is not fully elucidated. METHODS Mouse mesangial cells were administered with high glucose medium and the expression of polo-like kinase 2 (PLK2) was determined by PCR and western blot. Loss-of- and gain-of-function of PLK2 was achieved by small interfering RNA targeting PLK2 or PLK2 overexpression plasmid transfections. The hypertrophy, extracellular matrix production, and oxidative stress of mesangial cells were detected. The activation of p38-MAPK signaling was tested using western blot. SB203580 was employed to block the p38-MAPK signaling. The expression of PLK2 in human renal biopsies was detected by immunohistochemistry. RESULTS High glucose administration upregulated the expression of PLK2 in mesangial cells. PLK2 knockdown reversed the hypertrophy, extracellular matrix production, and oxidative stress induced by high glucose in mesangial cells. PLK2 knockdown suppressed the activation of p38-MAPK signaling. Blockade of p38-MAPK signaling by SB203580 abolished the dysfunction of mesangial cells induced by high glucose and PLK2 overexpression. The enhanced expression of PLK2 was validated in human renal biopsies. CONCLUSION PLK2 is a key participant in high glucose-induced mesangial cell dysfunction, and might play a crucial role in the pathogenesis of diabetic nephropathy.
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Affiliation(s)
- Jianfei Li
- Department of Nephrology, Wenzhou Central Hospital, Wenzhou, Zhejiang Province, China
| | - Feiju Ma
- Department of Nephrology, Wenzhou Central Hospital, Wenzhou, Zhejiang Province, China
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Watanabe K, Suzukawa M, Kawauchi-Watanabe S, Igarashi S, Asari I, Imoto S, Tashimo H, Fukami T, Hebisawa A, Tohma S, Nagase T, Ohta K. Leptin-producing monocytes in the airway submucosa may contribute to asthma pathogenesis. Respir Investig 2023; 61:5-15. [PMID: 36369154 DOI: 10.1016/j.resinv.2022.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Obesity leads to an increase in the incidence and severity of asthma. Adipokines, such as leptin, secreted by adipocytes induce systemic inflammation, causing airway inflammation. We previously reported that leptin activates both inflammatory and structural cells, including lung fibroblasts. However, little is known about the differential leptin expression and responsiveness to leptin in asthmatic individuals and healthy controls (HC). In this study, we investigated the expression and origin of leptin in asthmatic airways. We also compared the effect of leptin on asthmatic and HC fibroblasts. METHODS Lung specimens from asthmatic and non-asthmatic patients were analyzed by immunohistochemical staining using anti-leptin and anti-CD163 antibodies. Leptin mRNA and protein levels in human monocytes were detected by real-time PCR and western blotting and ELISA, respectively. We used flow cytometry to analyze asthmatic and HC lung fibroblasts for leptin receptor (Ob-R) expression. Further, we determined cytokine levels using cytometric bead array and ELISA and intracellular phosphorylation of specific signaling molecules using western blotting. RESULTS Asthma specimens displayed accumulation of leptin-positive inflammatory cells, which were also positive for CD163, a high-affinity scavenger receptor expressed by monocytes and macrophages. Leptin expression was observed at both transcript and protein levels in human blood-derived monocytes. No significant differences were observed between asthmatic and HC lung fibroblasts in Ob-R expression, cytokine production, and intracellular phosphorylation of p38 mitogen-activated protein kinase. CONCLUSIONS Our findings reveal similar responsiveness of control and asthmatic fibroblasts to leptin. However, the accumulation of inflammatory leptin-producing monocytes in the airway may contribute to the pathogenesis of asthma.
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Affiliation(s)
- Kaoru Watanabe
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan; Department of Respiratory Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Maho Suzukawa
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan.
| | - Shizuka Kawauchi-Watanabe
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan; Department of Respiratory Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Sayaka Igarashi
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan
| | - Isao Asari
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan
| | - Sahoko Imoto
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan; Department of Respiratory Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Hiroyuki Tashimo
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan
| | - Takeshi Fukami
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan
| | - Akira Hebisawa
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan; Department of Histopathology, Asahi General Hospital, I-1326, Asahi City, Chiba 289-2511, Japan
| | - Shigeto Tohma
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan
| | - Takahide Nagase
- Department of Respiratory Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Ken Ohta
- National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-City, Tokyo 204-8585, Japan; Japan Anti-Tuberculosis Association, Fukujuji Hospital, 3-1-24 Matsuyama, Kiyose-City, Tokyo 204-8522, Japan
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Nadeem RI, Aboutaleb AS, Younis NS, Ahmed HI. Diosmin Mitigates Gentamicin-Induced Nephrotoxicity in Rats: Insights on miR-21 and -155 Expression, Nrf2/HO-1 and p38-MAPK/NF-κB Pathways. Toxics 2023; 11:48. [PMID: 36668774 PMCID: PMC9865818 DOI: 10.3390/toxics11010048] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/26/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Gentamicin (GNT) is the most frequently used aminoglycoside. However, its therapeutic efficacy is limited due to nephrotoxicity. Thus, the potential anticipatory effect of Diosmin (DIOS) against GNT-prompted kidney damage in rats together with the putative nephroprotective pathways were scrutinized. Four groups of rats were used: (1) control; (2) GNT only; (3) GNT plus DIOS; and (4) DIOS only. Nephrotoxicity was elucidated, and the microRNA-21 (miR-21) and microRNA-155 (miR-155) expression and Nrf2/HO-1 and p38-MAPK/NF-κB pathways were assessed. GNT provoked an upsurge in the relative kidney weight and serum level of urea, creatinine, and KIM-1. The MDA level was markedly boosted, with a decline in the level of TAC, SOD, HO-1, and Nrf2 expression in the renal tissue. Additionally, GNT exhibited a notable amplification in TNF-α, IL-1β, NF-κB p65, and p38-MAPK kidney levels. Moreover, caspase-3 and BAX expression were elevated, whereas the Bcl-2 level was reduced. Furthermore, GNT resulted in the down-regulation of miR-21 expression along with an up-regulation of the miR-155 expression. Histological examination revealed inflammation, degradation, and necrosis. GNT-provoked pathological abnormalities were reversed by DIOS treatment, which restored normal kidney architecture. Hence, regulating miR-21 and -155 expression and modulating Nrf2/HO-1 and p38-MAPK/NF-κB pathways could take a vital part in mediating the reno-protective effect of DIOS.
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Affiliation(s)
- Rania I. Nadeem
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Amany S. Aboutaleb
- Pharmacology and Toxicology Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt
| | - Nancy S. Younis
- Pharmaceutical Sciences Department, Faculty of Clinical Pharmacy, King Faisal University, Al-Ahsa, Al-Hofuf 31982, Saudi Arabia
| | - Hebatalla I. Ahmed
- Pharmacology and Toxicology Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt
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Xia M, Zhang Y, Wu H, Zhang Q, Liu Q, Li G, Zhao T, Liu X, Zheng S, Qian Z, Li H. Forsythoside B attenuates neuro-inflammation and neuronal apoptosis by inhibition of NF-κB and p38-MAPK signaling pathways through activating Nrf2 post spinal cord injury. Int Immunopharmacol 2022; 111:109120. [PMID: 35944463 DOI: 10.1016/j.intimp.2022.109120] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/30/2022] [Accepted: 07/30/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Spinal cord injury (SCI) is a ruinous neurological pathology that results in locomotor and sensory impairment. Neuro-inflammation and secondary neuronal apoptosis contribute to SCI, with anti-inflammatory therapies the focus of many SCI studies. Forsythoside B (FTS•B), a phenylethanoid glycoside extracted from the leaves of Lamiophlomis rotata Kudo, has been shown previously to have anti-inflammatory properties. Nevertheless, the therapeutic effect of FTS•B on neuro-inflammation after SCI is unknown. METHODS Neuro-inflammation was assessed by western blotting (WB), immunofluorescence (IF) staining, and enzyme-linked immunosorbent assay (ELISA) both in vitro and in vivo. Secondary neuronal apoptosis was simulated in a microglia-neuron co-culture model with the degree of apoptosis measured by WB, IF, and TUNEL staining. In vivo, FTS•B (10 mg/kg, 40 mg/kg) were intraperitoneally injected into SCI mice. Morphological changes following SCI were evaluated by Nissl, Hematoxylin-eosin, and Luxol Fast Blue staining. Basso Mouse Scale scores were used to evaluate locomotor function recovery. RESULTS FTS•B markedly decreased the levels of iNOS, COX-2 and signature mediators of inflammation. Phosphorylated p38 and nuclear factor-kappa B (NF-κB) were markedly decreased by FTS•B. Additionally, FTS•B-induced inhibition of NF-κB and p38-MAPK signaling pathways was reversed by Nrf2 downregulation. Administration of FTS•B also significantly reduced apoptosis-related protein levels indicating that FTS•B ameliorated secondary neuronal apoptosis. FTS•B administration inhibited glial scar formation, decreased neuronal death, tissue deficiency, alleviated demyelination, and promoted locomotor recovery. CONCLUSION FTS•B effectively attenuates neuro-inflammation and secondary neuronal apoptosis by inhibition of NF-κB and p38-MAPK signaling pathways through activating Nrf2 after SCI. This study demonstrates FTS•B to be a potential therapeutic for SCI.
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Affiliation(s)
- Mingjie Xia
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yanan Zhang
- Postgraduate School, Dalian Medical University, Dalian, China
| | - Honghui Wu
- Postgraduate School, Dalian Medical University, Dalian, China
| | - Qinyang Zhang
- Postgraduate School, Dalian Medical University, Dalian, China
| | - Qiangxian Liu
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Guangshen Li
- School of Medicine, Nantong University, Nantong, China
| | - Tianyu Zhao
- Postgraduate School, Dalian Medical University, Dalian, China
| | - Xuepeng Liu
- School of Medicine, Nantong University, Nantong, China
| | - Shengnai Zheng
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - Zhanyang Qian
- School of Medicine, Southeast University, Nanjing, China; Spine Center, Zhongda Hospital of Southeast University, Nanjing, China.
| | - Haijun Li
- Department of Orthopedics, Taizhou People's Hospital Affiliated to Nanjing Medical University, Taizhou, China; Taizhou Clinical Medical School of Nanjing Medical University, Taizhou, China.
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10
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Guo P, Xu J, Liang H, Xu L, Gao W, Chen Z, Gao Y, Zhang M, Yu G, Shao Z. Estrogen Suppresses Cytokines Release in cc4821 Neisseria meningitidis Infection via TLR4 and ERβ- p38-MAPK Pathway. Front Microbiol 2022; 13:834091. [PMID: 35422784 PMCID: PMC9002303 DOI: 10.3389/fmicb.2022.834091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Estrogen has long been known to possess immune-modulatory effects in diseases, and multiple pathological conditions show great sex disparities. However, the impact of estrogen in Neisseria meningitidis infection has not been determined. The present study aimed to investigate the role of estrogen in N. meningitidis infection and the molecular mechanism. We selected 35 N. meningitidis isolates representing different clonal complexes (cc), serogroups, and isolation sources to infect the HBMEC cell line. Results showed that the expression of estrogen receptor (ER) β in N. meningitidis-infected cells was downregulated compared with that in normal cells. The expression of ERβ induced by invasive isolates was lower than that in carriers. Serogroup C isolates induced the lowest expression of ERβ compared with serogroup A and B isolates. We used four cc4821 N. meningitidis isolates to infect two kinds of host cells (human brain microvascular endothelial cells and meningeal epithelial cells). The results showed that 17 β-estradiol (E2) could inhibit the release of inflammatory factors interleukin (IL)-6, IL-8, and tumor necrosis factor-α after N. meningitidis infection via TLR4. E2 could inhibit the activation of the p38-MAPK signal pathway induced by N. meningitidis infection through binding to ERβ, and significantly inhibit the release of inflammatory factors in N. meningitidis-infected host cells. This study demonstrated that estrogen plays a protective role in N. meningitidis infection. ERβ is potentially associated with the release of inflammatory cytokines in N. meningitidis infection, which sheds light on a possible therapeutic strategy for the treatment of invasive diseases caused by N. meningitidis.
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Affiliation(s)
- Pengbo Guo
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Department of Pathogen Biology, School of Basic Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Juan Xu
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hao Liang
- Department of Microbiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Li Xu
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wanying Gao
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ziman Chen
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yuan Gao
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Maojun Zhang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Guangfu Yu
- Department of Pathogen Biology, School of Basic Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Zhujun Shao
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
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11
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Zhao FQ, Zhao Y, Liu JY, Gou YJ, Yang YQ. [Effects of berberine on LPS /NF-κB and MAPK signaling pathways in PCOS model rats]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2022; 38:181-186. [PMID: 36031579 DOI: 10.12047/j.cjap.6229.2022.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Objective: To investigate the effects of berberine on glucose and lipid metabolism, sex hormone binding protein, adiponectin (LPS), NF-κB and MAPK signaling pathways in polycystic ovary syndrome (PCOS) model rats. Methods: Female SD rats were randomly divided into control group, PCOS model group, berberine (0.216 g/kg) group, metformin (0.135 g/kg) group and Dyne-35 (0.18 mg/kg) group, 10 rats in each group. The rats in PCOS model group were treated with letrozole 1 mg.kg-1 by ig for 3 weeks. After 28 days of drug intervention, the body constitution, ovarian and uterine indexes of the rats were detected, and the changes in the number of ovarian follicles were observed by HE staining. The levels of serum sex hormone, glucose and insulin, triglyceride and cholesterol, sex hormone-binding protein and adiponectin were determined by ELISA, and the protein expressions of p38-MAPK, C-Jun and NF-κB in ovarian tissues were determined by Western blot. Results: Compared with control group, body weight of model group was increased (P<0.05), and uterine index was decreased (P<0.05); The number of follicles was increased (P<0.05). Serum levels of luteinizing hormone (LH), testosterone (T) and LH/FSH ratio were increased (P<0.05), follicular estrogen (FSH) level was decreased (P<0.05), total cholesterol (TC), triglyceride (TG), fasting insulin and insulin index (HOMA) were increased (P< 0.05). The content of sex hormone binding protein (SHBG) was decreased and the content of adiponectin (LPS) was increased (P<0.05). The protein expressions of p38-MAPK, c-Jun and NF-κB in ovarian tissue were up-regulated (P<0.05). Compared with model group, in berberine group, the uterine index and the number of secondary follicles were increased(P<0.05), the serum levels of luteinizing hormone (LH) , testosterone (T) and the ratio of LH/FSH were decreased (P<0.05), and the protein expression levels of p38-MAPK and NF-κB in ovarian tissue were down-regulated (P<0.05), which were similar to those of Dyne-35 group. Berberine significantly decreased serum triglyceride (TG), insulin level and insulin index (P<0.05), increased serum SHBG level and decreased serum LPS level (P<0.05), which were similar to those of metformin. Conclusion: Berberine can regulate sex hormone disorder and insulin resistance (IR) in PCOS rats by down-regulating the expressions of p38-MAPK and NF-κB protein in ovarian tissues and decreasing the serum content of LPS.
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Affiliation(s)
- Fen-Qin Zhao
- Gansu University of Traditional Chinese Medicine, Lanzhou 730000 China
| | - Yan Zhao
- Gansu University of Traditional Chinese Medicine, Lanzhou 730000 China
| | - Jie-Ying Liu
- Gansu University of Traditional Chinese Medicine, Lanzhou 730000 China
| | - Ya-Jiao Gou
- Gansu University of Traditional Chinese Medicine, Lanzhou 730000 China
| | - Yong-Qin Yang
- Gansu University of Traditional Chinese Medicine, Lanzhou 730000 China
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12
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Nair T, Chakraborty R, Singh P, Rahman SS, Bhaskar AK, Sengupta S, Mukhopadhyay A. Adaptive capacity to dietary Vitamin B12 levels is maintained by a gene-diet interaction that ensures optimal life span. Aging Cell 2022; 21:e13518. [PMID: 35032420 PMCID: PMC8761004 DOI: 10.1111/acel.13518] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/16/2021] [Accepted: 11/02/2021] [Indexed: 11/28/2022] Open
Abstract
Diet regulates complex life-history traits such as longevity. For optimal lifespan, organisms employ intricate adaptive mechanisms whose molecular underpinnings are less known. We show that Caenorhabditis elegans FLR-4 kinase prevents lifespan differentials on the bacterial diet having higher Vitamin B12 levels. The flr-4 mutants are more responsive to the higher B12 levels of Escherichia coli HT115 diet, and consequently, have enhanced flux through the one-carbon cycle. Mechanistically, a higher level of B12 transcriptionally downregulates the phosphoethanolamine methyltransferase pmt-2 gene, which modulates phosphatidylcholine (PC) levels. Pmt-2 downregulation activates cytoprotective gene expression through the p38-MAPK pathway, leading to increased lifespan only in the mutant. Evidently, preventing bacterial B12 uptake or inhibiting one-carbon metabolism reverses all the above phenotypes. Conversely, supplementation of B12 to E. coli OP50 or genetically reducing PC levels in the OP50-fed mutant extends lifespan. Together, we reveal how worms maintain adaptive capacity to diets having varying micronutrient content to ensure a normal lifespan.
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Affiliation(s)
- Tripti Nair
- Molecular Aging LaboratoryNational Institute of ImmunologyNew DelhiIndia
| | - Rahul Chakraborty
- CSIR‐Institute of Genomics and Integrative BiologyNew DelhiIndia
- Academy of Scientific and Innovative Research (AcSIR)GhaziabadIndia
| | - Praveen Singh
- CSIR‐Institute of Genomics and Integrative BiologyNew DelhiIndia
- Academy of Scientific and Innovative Research (AcSIR)GhaziabadIndia
| | | | - Akash Kumar Bhaskar
- CSIR‐Institute of Genomics and Integrative BiologyNew DelhiIndia
- Academy of Scientific and Innovative Research (AcSIR)GhaziabadIndia
| | | | - Arnab Mukhopadhyay
- Molecular Aging LaboratoryNational Institute of ImmunologyNew DelhiIndia
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13
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Terp MG, Gammelgaard OL, Vever H, Gjerstorff MF, Ditzel HJ. Sustained compensatory p38 MAPK signaling following treatment with MAPK inhibitors induces the immunosuppressive protein CD73 in cancer: combined targeting could improve outcomes. Mol Oncol 2021; 15:3299-3316. [PMID: 34165921 PMCID: PMC8637576 DOI: 10.1002/1878-0261.13046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/23/2021] [Accepted: 06/23/2021] [Indexed: 11/25/2022] Open
Abstract
RAS-MAPK signaling promotes immune evasion and cancer cell survival, and MAPK inhibitors (MAPKis) are frequently used as cancer therapies. Despite progress elucidating the direct effects of MAPKi on immune cells, their indirect effect on the tumor microenvironment (TME) through changes in tumor cells remains incompletely understood. Here, we present evidence of a rapid compensatory response to MAPKi that is driven by sustained p38 MAPK signaling and by which cancer cells can upregulate the immunosuppressive protein CD73 to reduce the antitumor immune response. This compensatory response also results in decreased sensitivity toward MAPKi, and, accordingly, combining anti-CD73 antibodies and MAPKi significantly enhances the antitumor effect compared to single-agent treatment in vivo. Combining MAPKi and anti-CD73 was accompanied by significant alterations in intratumor immune cell composition, supporting the effect of MAPKi-induced CD73 expression on the TME. We show that high CD73 expression significantly correlates with worse outcome in MAPKi-treated colorectal cancer patients, highlighting the potential clinical importance of increased CD73 expression following MAPKi treatment. Our findings may explain the diminished effect of MAPKi in cancer patients and provides further rationale for combined anti-CD73 and MAPKi treatment.
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Affiliation(s)
- Mikkel G. Terp
- Department of Cancer and Inflammation ResearchInstitute of Molecular MedicineUniversity of Southern DenmarkOdenseDenmark
| | - Odd L. Gammelgaard
- Department of Cancer and Inflammation ResearchInstitute of Molecular MedicineUniversity of Southern DenmarkOdenseDenmark
| | - Henriette Vever
- Department of Cancer and Inflammation ResearchInstitute of Molecular MedicineUniversity of Southern DenmarkOdenseDenmark
| | - Morten F. Gjerstorff
- Department of Cancer and Inflammation ResearchInstitute of Molecular MedicineUniversity of Southern DenmarkOdenseDenmark
- Department of OncologyOdense University HospitalDenmark
- Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
- Academy of Geriatric Cancer Research (AgeCare)Odense University HospitalDenmark
| | - Henrik J. Ditzel
- Department of Cancer and Inflammation ResearchInstitute of Molecular MedicineUniversity of Southern DenmarkOdenseDenmark
- Department of OncologyOdense University HospitalDenmark
- Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
- Academy of Geriatric Cancer Research (AgeCare)Odense University HospitalDenmark
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14
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Xia M, Cao H, Zheng J, Yao Y, Xu F, Lu G, Ma Y, Zhou J. A novel stilbene derivative (GMQ3) suppressed proliferation and induced apoptosis in lung cancer via the p38-MAPK/SIRT1 pathway. Biochem Pharmacol 2021; 193:114808. [PMID: 34678220 DOI: 10.1016/j.bcp.2021.114808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND Lung cancer is the primary cause of cancer-related mortality worldwide. The anticancer effect of stilbene has been noted in various tumor types. GMQ3, which has a stilbene-mimicking skeleton, is a novel small-molecule compound with promising antitumor activity. Our results revealed that GMQ3 not only suppressed cell proliferation and cell migration of lung cancer cells but also led to G1 phase cell cycle arrest and triggered caspase-dependent apoptosis. Furthermore, investigation of the molecular mechanism showed that GMQ3 could inhibited proliferation and induced apoptosis via the p38-MAPK/SIRT1 pathway both in vitro and in vivo. Xenograft tumor mouse models showed that GMQ3 significantly inhibited tumor growth in vivo without affecting body weight. Our findings indicated that GMQ3 exerts a strong anticancer action by suppressing cell proliferation, inhibiting cell migration and inducing cell apoptosis. Moreover, the efficacy of GMQ3 was enhanced in the presence of CDK4/6 inhibitor Abemaciclib. We conclude that GMQ3 is a promising agent with potential for lung cancer.
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Affiliation(s)
- Mengling Xia
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - He Cao
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jing Zheng
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yinan Yao
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Fei Xu
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Guohua Lu
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou, China.
| | - Jianying Zhou
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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15
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Narasimhan M, Khamkar V, Tilwani S, Dalal SN, Shetty D, Subramanian PG, Gupta S, Govekar R. Atypical activation of signaling downstream of inactivated Bcr-Abl mediates chemoresistance in chronic myeloid leukemia. J Cell Commun Signal 2021; 16:207-222. [PMID: 34596797 DOI: 10.1007/s12079-021-00647-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/20/2021] [Indexed: 11/28/2022] Open
Abstract
Chronic myeloid leukemia (CML) epitomises successful targeted therapy, where inhibition of tyrosine kinase activity of oncoprotein Bcr-Abl1 by imatinib, induces remission in 86% patients in initial chronic phase (CP). However, in acute phase of blast crisis, 80% patients show resistance, 40% among them despite inhibition of Bcr-Abl1 activity. This implies activation of either Bcr-Abl1- independent signalling pathways or restoration of signalling downstream of inactive Bcr-Abl1. In the present study, mass spectrometry and subsequent in silico pathway analysis of differentiators in resistant CML-CP cells identified key differentiators, 14-3-3ε and p38 MAPK, which belong to Bcr-Abl1 pathway. Their levels and activity respectively, indicated active Bcr-Abl1 pathway in CML-BC resistant cells, though Bcr-Abl1 is inhibited by imatinib. Further, contribution of these components to resistance was demonstrated by inhibition of Bcr-Abl1 down-stream signalling by knocking-out of 14-3-3ε and inhibition of p38 MAPK activity. The observations merit clinical validation to explore their translational potential.
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Affiliation(s)
- Mythreyi Narasimhan
- Rukmini Lab, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India.,Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Vaishnavi Khamkar
- Rukmini Lab, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
| | - Sarika Tilwani
- Sorab Lab, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India.,Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Sorab N Dalal
- Sorab Lab, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India.,Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Dhanlaxmi Shetty
- Department of Cancer Cytogenetics, , ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
| | - P G Subramanian
- Hematopathology Lab, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India.,Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Sanjay Gupta
- Gupta Lab, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India.,Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Rukmini Govekar
- Rukmini Lab, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India. .,Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai, 400094, India.
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16
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Huo H, Yang S, Wu H, Sun Y, Zhao R, Ye R, Yan D, Shi X, Yang J. Brain endothelial cells-derived extracellular vesicles overexpressing ECRG4 inhibit glioma proliferation through suppressing inflammation and angiogenesis. J Tissue Eng Regen Med 2021; 15:1162-1171. [PMID: 34551201 DOI: 10.1002/term.3244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/22/2021] [Accepted: 09/02/2021] [Indexed: 12/27/2022]
Abstract
Esophageal cancer related gene-4 (ECRG4) has been shown to be a candidate tumor suppressor in many tumors, but its role in glioma remains poorly understood. This study aimed to explore whether extracellular vesicles (EVs) derived from brain endothelial cells which overexpressed ECRG4 have anti-tumor effect on gliomas in vivo and in vitro, as well as the possible mechanism. A constructed lentivirus expressing the ECRG4 gene was transfected into the hCMEC/D3 cell line. The EVs were isolated from the cells and characterized by Western blot with exosome markers of CD9, CD63, CD81, Alix. RT-PCR and Western blot were performed to verify ECRG4 expression. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and clone formation assays were applied to detect the proliferation of glioma cells incubated with EVs expressing the ECRG4 (ECRG4-exo). The level of inflammatory cytokines and angiogenesis related factors, including nuclear factor kappa-B (NF-κB), interleukin (IL)-1β, IL-6, IL-8, monocyte chemoattractant protein-1 (MCP-1), hypoxia-inducible factor 1-alpha (HIF-1α), vascular endothelial growth factor (VEGF) and vascular endothelial growth factor receptor 2 (VEGFR2) levels were detected by ELISA. The T98G cell xenograft mouse model was established and treated with ECRG4-EV. The tumor volume and weight were recorded. p38-MAPK, p-p38-MAPK proteins were determined by Western blot in tumor tissues. As a result, EVs can be internalized into U87MG and T98G cells. ECRG4-EV inhibited U87MG and T98G cell proliferation. ECRG4-EV also inhibited the expression of factors involved in inflammation and angiogenesis. In addition, ECRG4-EVs suppressed tumor growth and decreased the production of inflammatory cytokines through inactivation of p38-MAPK signal pathway. In conclusion, ECRG4-EVsuppresses glioma proliferation through modulating the inflammation and angiogenesis.
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Affiliation(s)
- Haoran Huo
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Song Yang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Haotian Wu
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yuchen Sun
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Ranran Zhao
- Department of Hemodialysis, Traditional Chinese Medicine Hospital of Shi Jia Zhuang City, Shijiazhuang, Hebei, China
| | - Ruihao Ye
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Dongdong Yan
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xuefang Shi
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jiankai Yang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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17
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Höving AL, Schmitz J, Schmidt KE, Greiner JFW, Knabbe C, Kaltschmidt B, Grünberger A, Kaltschmidt C. Human Blood Serum Induces p38-MAPK- and Hsp27-Dependent Migration Dynamics of Adult Human Cardiac Stem Cells: Single-Cell Analysis via a Microfluidic-Based Cultivation Platform. Biology (Basel) 2021; 10:biology10080708. [PMID: 34439941 PMCID: PMC8389316 DOI: 10.3390/biology10080708] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/16/2021] [Accepted: 07/21/2021] [Indexed: 12/14/2022]
Abstract
Simple Summary Adult human stem cells possess the ability to contribute to endogenous regeneration processes of injured tissue by migrating to specific locations. For stem cell-based clinical applications it is highly important to gain knowledge about the migration behavior of adult human stem cells and the underlying molecular mechanisms of this ability. Human blood serum has been shown to have beneficial effects on other regenerative capacities of adult human stem cells. Within this study we tested the effect of human blood serum on the migration behavior of stem cells from the human heart. We used a microfluidic cultivation device, which allowed us to monitor the living cells and their movement behavior in real time. After addition of human blood serum, the heart stem cells increased their speed of movement and covered distance. Further, we observed that this effect could be diminished by inhibition of a specific kinase, p38-MAPK. Thus, our data suggest beneficial effects of human blood serum on adult human heart stem cells dependent on p38-MAPK. Our study contributes to a deeper understanding of the dynamics of stem cell migration and introduces a new platform to monitor stem cell movement in real time. Abstract Migratory capabilities of adult human stem cells are vital for assuring endogenous tissue regeneration and stem cell-based clinical applications. Although human blood serum has been shown to be beneficial for cell migration and proliferation, little is known about its impact on the migratory behavior of cardiac stem cells and underlying signaling pathways. Within this study, we investigated the effects of human blood serum on primary human cardiac stem cells (hCSCs) from the adult heart auricle. On a technical level, we took advantage of a microfluidic cultivation platform, which allowed us to characterize cell morphologies and track migration of single hCSCs via live cell imaging over a period of up to 48 h. Our findings showed a significantly increased migration distance and speed of hCSCs after treatment with human serum compared to control. Exposure of blood serum-stimulated hCSCs to the p38 mitogen-activated protein kinase (p38-MAPK) inhibitor SB239063 resulted in significantly decreased migration. Moreover, we revealed increased phosphorylation of heat shock protein 27 (Hsp27) upon serum treatment, which was diminished by p38-MAPK-inhibition. In summary, we demonstrate human blood serum as a strong inducer of adult human cardiac stem cell migration dependent on p38-MAPK/Hsp27-signalling. Our findings further emphasize the great potential of microfluidic cultivation devices for assessing spatio-temporal migration dynamics of adult human stem cells on a single-cell level.
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Affiliation(s)
- Anna L. Höving
- Department of Cell Biology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany; (K.E.S.); (J.F.W.G.); (B.K.); (C.K.)
- Heart and Diabetes Centre NRW, Institute for Laboratory and Transfusion Medicine, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany;
- Correspondence:
| | - Julian Schmitz
- Multiscale Bioengineering, Faculty of Technology, Bielefeld University, 33615 Bielefeld, Germany; (J.S.); (A.G.)
| | - Kazuko E. Schmidt
- Department of Cell Biology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany; (K.E.S.); (J.F.W.G.); (B.K.); (C.K.)
- Heart and Diabetes Centre NRW, Institute for Laboratory and Transfusion Medicine, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany;
| | - Johannes F. W. Greiner
- Department of Cell Biology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany; (K.E.S.); (J.F.W.G.); (B.K.); (C.K.)
| | - Cornelius Knabbe
- Heart and Diabetes Centre NRW, Institute for Laboratory and Transfusion Medicine, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany;
| | - Barbara Kaltschmidt
- Department of Cell Biology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany; (K.E.S.); (J.F.W.G.); (B.K.); (C.K.)
- Molecular Neurobiology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Alexander Grünberger
- Multiscale Bioengineering, Faculty of Technology, Bielefeld University, 33615 Bielefeld, Germany; (J.S.); (A.G.)
| | - Christian Kaltschmidt
- Department of Cell Biology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany; (K.E.S.); (J.F.W.G.); (B.K.); (C.K.)
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18
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Bora P, Gahurova L, Hauserova A, Stiborova M, Collier R, Potěšil D, Zdráhal Z, Bruce AW. DDX21 is a p38-MAPK-sensitive nucleolar protein necessary for mouse preimplantation embryo development and cell-fate specification. Open Biol 2021; 11:210092. [PMID: 34255976 PMCID: PMC8277471 DOI: 10.1098/rsob.210092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Successful navigation of the mouse preimplantation stages of development, during which three distinct blastocyst lineages are derived, represents a prerequisite for continued development. We previously identified a role for p38-mitogen-activated kinases (p38-MAPK) regulating blastocyst inner cell mass (ICM) cell fate, specifically primitive endoderm (PrE) differentiation, that is intimately linked to rRNA precursor processing, polysome formation and protein translation regulation. Here, we develop this work by assaying the role of DEAD-box RNA helicase 21 (DDX21), a known regulator of rRNA processing, in the context of p38-MAPK regulation of preimplantation mouse embryo development. We show nuclear DDX21 protein is robustly expressed from the 16-cell stage, becoming exclusively nucleolar during blastocyst maturation, a localization dependent on active p38-MAPK. siRNA-mediated clonal Ddx21 knockdown within developing embryos is associated with profound cell-autonomous and non-autonomous proliferation defects and reduced blastocyst volume, by the equivalent peri-implantation blastocyst stage. Moreover, ICM residing Ddx21 knockdown clones express the EPI marker NANOG but rarely express the PrE differentiation marker GATA4. These data contribute further significance to the emerging importance of lineage-specific translation regulation, as identified for p38-MAPK, during mouse preimplantation development.
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Affiliation(s)
- Pablo Bora
- Laboratory of Early Mammalian Developmental Biology (LEMDB), Department of Molecular Biology and Genetics, Faculty of Science, University of South Bohemia, Branišovská 31, 37005 České Budějovice, Czech Republic
| | - Lenka Gahurova
- Laboratory of Early Mammalian Developmental Biology (LEMDB), Department of Molecular Biology and Genetics, Faculty of Science, University of South Bohemia, Branišovská 31, 37005 České Budějovice, Czech Republic.,Laboratory of Biochemistry and Molecular Biology of Germ Cells, Institute of Animal Physiology and Genetics, CAS, Rumburská 89, 27721 Liběchov, Czech Republic
| | - Andrea Hauserova
- Laboratory of Early Mammalian Developmental Biology (LEMDB), Department of Molecular Biology and Genetics, Faculty of Science, University of South Bohemia, Branišovská 31, 37005 České Budějovice, Czech Republic
| | - Martina Stiborova
- Laboratory of Early Mammalian Developmental Biology (LEMDB), Department of Molecular Biology and Genetics, Faculty of Science, University of South Bohemia, Branišovská 31, 37005 České Budějovice, Czech Republic
| | - Rebecca Collier
- Laboratory of Early Mammalian Developmental Biology (LEMDB), Department of Molecular Biology and Genetics, Faculty of Science, University of South Bohemia, Branišovská 31, 37005 České Budějovice, Czech Republic
| | - David Potěšil
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Zbyněk Zdráhal
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Alexander W Bruce
- Laboratory of Early Mammalian Developmental Biology (LEMDB), Department of Molecular Biology and Genetics, Faculty of Science, University of South Bohemia, Branišovská 31, 37005 České Budějovice, Czech Republic
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Pelaia C, Vatrella A, Gallelli L, Lombardo N, Sciacqua A, Savino R, Pelaia G. Role of p38 Mitogen-Activated Protein Kinase in Asthma and COPD: Pathogenic Aspects and Potential Targeted Therapies. Drug Des Devel Ther 2021; 15:1275-1284. [PMID: 33790539 PMCID: PMC8001041 DOI: 10.2147/dddt.s300988] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/23/2021] [Indexed: 12/13/2022]
Abstract
Among the various members of the mitogen-activated protein kinase (MAPK) family, p38 MAPK subgroup is the most involved in airway and lung inflammation underlying asthma and chronic obstructive pulmonary disease (COPD). In particular, several environmental agents including aeroallergens, cigarette smoke, airborne pollutants, viral and bacterial pathogens activate the p38α isoform which in turn up-regulates the expression of multiple proinflammatory cytokines and chemokines, as well as the production of some fibrogenic factors. Therefore, p38 MAPK-induced bronchial inflammation and remodelling significantly contribute to the development, persistence and amplification of airflow limitation, which is the hallmark of asthma and COPD. Such advances in our understanding of p38 role in the pathobiology of the above widespread, chronic obstructive respiratory diseases, have led to consider p38 MAPK as a suitable molecular target for novel treatment strategies. Indeed, many studies have been carried out in both animal and clinical settings, with the aim of evaluating the potential therapeutic effects of p38 MAPK inhibitors in both asthma and COPD.
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Affiliation(s)
- Corrado Pelaia
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | - Alessandro Vatrella
- Department of Medicine, Surgery and Dentistry, University of Salerno, Salerno, Italy
| | - Luca Gallelli
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | - Nicola Lombardo
- Department of Medical and Surgical Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | - Angela Sciacqua
- Department of Medical and Surgical Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | - Rocco Savino
- Department of Medical and Surgical Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | - Girolamo Pelaia
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
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Zhang ZD, Yang YJ, Liu XW, Qin Z, Li SH, Li JY. Aspirin eugenol ester ameliorates paraquat-induced oxidative damage through ROS/ p38-MAPK-mediated mitochondrial apoptosis pathway. Toxicology 2021; 453:152721. [PMID: 33592258 DOI: 10.1016/j.tox.2021.152721] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 02/02/2021] [Accepted: 02/08/2021] [Indexed: 01/06/2023]
Abstract
Paraquat (PQ) is an effective and commercially important herbicide that is widely used worldwide. However, PQ is highly toxic and can cause various complications and acute organ damage. Aspirin eugenol ester (AEE) is a potential new compound with anti-inflammatory and antioxidant stress pharmacological activity. The present study was to reveal the therapeutic effects and the protective effect of AEE against PQ-induced acute lung injury (ALI) with the help of PQ-induced oxidative damage in A549 cells and PQ-induced lung injury in rats. AEE might have no significant therapeutic effect on PQ-induced lung injury in rats. However, AEE had a significant protective effect on PQ-induced lung injury in rats. AEE pretreatment significantly reduced the stimulatory effect of PQ on malondialdehyde (MDA), the inhibitory effect of PQ on catalase (CAT) activity, superoxide dismutase (SOD) activity, glutathione peroxidase (GPx) activity, the ratio of GSH/GSSH, the activity of caspase-3 and the overexpression of p38 mitogen-activated protein kinase (MAPK) phosphorylation in vivo. In vitro, A549 cells were treated with 250 μM PQ for 24 h. Incubation of A549 cells with PQ led to apoptosis, and increased the level of superoxide anions, reactive oxygen species (ROS), malondialdehyde and the activity of caspase-3 and up-regulation of phosphorylated p38-MAPK, reduced mitochondrial membrane potential (ΔΨm) and the activity of SOD. However, after 24 h on AEE pretreatment of A549 cells, the above-mentioned adverse reactions caused by PQ were significantly alleviated. In addition, AEE pretreatment reduced p38-MAPK phosphorylation in PQ-treated A549 cells. SB203580, the specific p38-MAPK inhibitor, and p38-MAPK shRNA attenuated the activation of the p38-MAPK signaling pathway. N-acetylcysteine (NAC) reduced the level of phosphorylated p38-MAPK and the production of intracellular ROS and inhibited apoptosis. The results showed that AEE may inhibit PQ-induced cell damage through ROS/p38-MAPK-mediated mitochondrial apoptosis pathway.
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Affiliation(s)
- Zhen-Dong Zhang
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China.
| | - Ya-Jun Yang
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China.
| | - Xi-Wang Liu
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China.
| | - Zhe Qin
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China.
| | - Shi-Hong Li
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China.
| | - Jian-Yong Li
- Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou, 730050, China.
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21
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He Q, Li Z, Li T, Zhang Z, Zhao J. ATP Stimulation Promotes Functional Recovery after Intracerebral Haemorrhage by Increasing the mBDNF/proBDNF Ratio. Neuroscience 2021; 459:104-117. [PMID: 33421569 DOI: 10.1016/j.neuroscience.2020.12.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 12/20/2022]
Abstract
Brain-derived neurotrophic factor (BDNF), including mature BDNF (mBDNF) and precursor BDNF (proBDNF), plays a pivotal role in neuronal survival, synaptic plasticity and neurogenesis. However, the functional effect of the mBDNF/proBDNF ratio in haemorrhagic stroke remains unclear. ATP is a known mediator of BDNF production in neurons and glia. Therefore, we hypothesized that ATP could facilitate BDNF production, increase the mBDNF/proBDNF ratio and thereby alleviate cerebral haemorrhage-induced injury. In this experiment, a model of intracerebral haemorrhage (ICH) was produced by injecting 50 μL autologous blood into the right corpus striatum in healthy male rats. ATP was injected to promote BDNF production and increase the mBDNF/proBDNF ratio. After ATP pretreatment, P2X4R-shRNA and SB203580 were used to inhibit P2X4R and p38-MAPK, respectively. We provide direct evidence that ATP administration was successful in promoting mBDNF expression and increasing the mBDNF/proBDNF ratio after ICH injury. Additionally, ATP stimulation could significantly improve cerebral neurological function and alleviate neuronal damage. Furthermore, ATP injection was able to upregulate the expression of P2X4R and p-p38-MAPK. Moreover, both P2X4R-shRNA and SB203580 could effectively abolish the effect of ATP injection on the levels of P2X4R and p-p38-MAPK and the mBDNF/proBDNF ratio. Together, these findings show that ATP stimulation contributes to functional recovery after cerebral haemorrhage and that neuroprotection induced by ATP administration in ICH rats is accompanied by a strong increase in the mBDNF/proBDNF ratio. Here, we also show a significant role of P2X4R-p38-MAPK signalling in the ATP-induced increase in the mBDNF/proBDNF ratio in ICH.
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Affiliation(s)
- Qi He
- The School of Laboratory Medicine, Chongqing Medical University, Chongqing, People's Republic of China; Institute of Neuroscience, Chongqing Medical University, Chongqing, People's Republic of China
| | - Zhenyu Li
- Department of Pathology, Chongqing University Cancer Hospital, Chongqing, People's Republic of China
| | - Tiegang Li
- Institute of Materia Medica, Peking Union Medical College Hospital, Peking, People's Republic of China
| | - Zhiqian Zhang
- The School of Laboratory Medicine, Chongqing Medical University, Chongqing, People's Republic of China
| | - Jing Zhao
- Department of Pathophysiology, Chongqing Medical University, Chongqing, People's Republic of China; Institute of Neuroscience, Chongqing Medical University, Chongqing, People's Republic of China.
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22
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Irnaten M, Duff A, Clark A, O’Brien C. Intra-Cellular Calcium Signaling Pathways (PKC, RAS/RAF/MAPK, PI3K) in Lamina Cribrosa Cells in Glaucoma. J Clin Med 2020; 10:jcm10010062. [PMID: 33375386 PMCID: PMC7795259 DOI: 10.3390/jcm10010062] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 02/06/2023] Open
Abstract
The lamina cribrosa (LC) is a key site of fibrotic damage in glaucomatous optic neuropathy and the precise mechanisms of LC change remain unclear. Elevated Ca2+ is a major driver of fibrosis, and therefore intracellular Ca2+ signaling pathways are relevant glaucoma-related mechanisms that need to be studied. Protein kinase C (PKC), mitogen-activated MAPK kinases (p38 and p42/44-MAPK), and the PI3K/mTOR axis are key Ca2+ signal transducers in fibrosis and we therefore investigated their expression and activity in normal and glaucoma cultured LC cells. We show, using Western immune-blotting, that hyposmotic-induced cellular swelling activates PKCα, p42/p44, and p38 MAPKs, the activity is transient and biphasic as it peaks between 2 min and 10 min. The expression and activity of PKCα, p38 and p42/p44-MAPKs are significantly (p < 0.05) increased in glaucoma LC cells at basal level, and at different time-points after hyposmotic stretch. We also found elevated mRNA expression of mRNA expression of PI3K, IP3R, mTOR, and CaMKII in glaucoma LC cells. This study has identified abnormalities in multiple calcium signaling pathways (PKCα, MAPK, PI3K) in glaucoma LC cells, which might have significant functional and therapeutic implications in optic nerve head (ONH) fibrosis and cupping in glaucoma.
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Affiliation(s)
- Mustapha Irnaten
- Department Ophthalmology, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland;
- Correspondence: ; Tel.: +353-851-334-932
| | - Aisling Duff
- Milton Medical Centre New South Wales, Milton, NSW 2538, Australia;
| | - Abbot Clark
- Department Pharmacology & Neuroscience and the North Texas Eye Research Institute, Health Science Center, Fort Worth, TX 76107, USA;
| | - Colm O’Brien
- Department Ophthalmology, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland;
- School of Medicine and Medical Science, University College Dublin, D04 V1W8 Dublin, Ireland
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23
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Cheng C, Mao Q, Shi M, Lu H, Shen B, Xiao T, Yang A, Liu Y. miR-125b prevent the progression of esophageal squamous cell carcinoma through the p38-MAPK signaling pathway. J Gastrointest Oncol 2020; 11:1113-1122. [PMID: 33456986 DOI: 10.21037/jgo-20-546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background To examine the clinical significance of miR-125b in esophageal squamous cell carcinoma (ESCC) and to research the effect of miR-125b on the biological function of ESCC cells and the relevant underlying mechanism. Methods The expression of miR-125b in ESCC tissues and cell lines were discovered by RT-PCR assay. The interrelation between miR-125b expression and clinicopathological parameters and the forecasting of ESCC patients were analyzed. CCK-8 method and Transwell methods were used to detect the increased growth, shifting, and irruption of ESCC cells. Bioinformatics analysis was applied to forecast the possible target genes of miR-125b and verified through dual-luciferase reporter gene assay. After that, the expression of p38-MAPK mRNA and protein were found out by RT-PCR and Western blot. Results The expression of miR-125b was down-regulated in ESCC tissues and cell lines (P<0.05). And the expression of miR-125b was closely about tumor differentiation, TNM level, and lymph node metastasis in ESCC patients. The low miR-125b formulation was closely related to rough forecasting in ESCC patients. Large scale expression of miR-125b can effectively decrease the acceleration, shifting, and irrupting strengths of ESCC cells. Bioinformatics analysis showed p38-MAPK was forecasted to be a potential mark of miR-125b, which was confirmed by dual luciferase assay, and extreme expression of miR-125b can stop the expression of p38-MAPK mRNA and protein. Conclusions miR-125b is down-regulated in ESCC. Moreover, its expression level is significant concerning tumor progression and prognosis in patients with ESCC. MiR-125b can stop the high growth and shifting of ESCC cells having p38-MAPK at target.
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Affiliation(s)
- Chun Cheng
- Department of Thoracic Surgery, Affiliated Tumor Hospital Nantong University, Nantong, China
| | - Qinghua Mao
- Department of Thoracic Surgery, Affiliated Tumor Hospital Nantong University, Nantong, China
| | - Minxin Shi
- Department of Thoracic Surgery, Affiliated Tumor Hospital Nantong University, Nantong, China
| | - Haimin Lu
- Department of Thoracic Surgery, Affiliated Tumor Hospital Nantong University, Nantong, China
| | - Biao Shen
- Department of Thoracic Surgery, Affiliated Tumor Hospital Nantong University, Nantong, China
| | - Ting Xiao
- Department of Thoracic Surgery, Affiliated Tumor Hospital Nantong University, Nantong, China
| | - Aimin Yang
- Department of Thoracic Surgery, Affiliated Tumor Hospital Nantong University, Nantong, China
| | - Yupeng Liu
- Department of Thoracic Surgery, Affiliated Tumor Hospital Nantong University, Nantong, China
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24
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Ahmed MAE, Ahmed AAE, El Morsy EM. Acetyl-11-keto-β-boswellic acid prevents testicular torsion/detorsion injury in rats by modulating 5-LOX/LTB4 and p38-MAPK/JNK/Bax/Caspase-3 pathways. Life Sci 2020; 260:118472. [PMID: 32971106 DOI: 10.1016/j.lfs.2020.118472] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/08/2020] [Accepted: 09/16/2020] [Indexed: 02/06/2023]
Abstract
AIMS Testicular torsion/detorsion (T/D) is a critical medical condition that necessitates prompt surgical intervention to avoid testicular atrophy and infertility. The use of natural compounds may protect against the associated detrimental oxidative stress and inflammatory responses. Interestingly, acetyl-11-keto-β-boswellic acid (AKBA), the main active constituent of Boswellia resin, has shown potent inhibitory effect on 5-lipoxygenase enzyme which converts arachidonic acid into inflammatory mediators. Therefore, this study was conducted to assess the protective mechanisms by which AKBA may protect against testicular T/D injury in rats. MAIN METHODS Male rats were randomly distributed into five groups: Sham, AKBA (50 mg/kg, p.o.), unilateral testicular T/D, AKBA at two dose levels (25 or 50 mg/kg for 15 successive days) followed by T/D. Histological examination and Johnsen's score were performed to assess testicular injury and perturbations in spermatogenesis. Biochemical parameters included markers of testicular function (serum testosterone), oxidant/antioxidant status (malondialdehyde, glutathione), inflammation (5-lipoxygenase, leukotriene-B4, myeloperoxidase, interleukin-1β, interleukin-6), apoptosis (Bax, Bcl2, caspase-3), DNA integrity (quantitative DNA fragmentation, DNA laddering, PARP-1), energy production (ATP), in addition to p38 MAPK and JNK protein expression. KEY FINDINGS In a dose dependent manner, AKBA significantly inhibited testicular T/D-induced upregulation of 5-LOX/LTB4 and p38-MAPK/JNK/Bax pathways and their associated downstream inflammatory and apoptotic cascades. These effects were accompanied with ATP replenishment and DNA preservation, resulting ultimately in salvage of the testis. SIGNIFICANCE Unprecedentedly, the present mechanistic study revealed the pathways by which AKBA may inhibit testicular T/D injury and offered a novel protective approach that may attenuate the severity of this condition.
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Affiliation(s)
- Maha A E Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), 6th of October City, Giza, Egypt.
| | - Amany A E Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, Egypt
| | - Engy M El Morsy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, Egypt
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25
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Yao Y, Cui L, Ye J, Yang G, Lu G, Fang X, Zeng Z, Zhou J. Dioscin facilitates ROS-induced apoptosis via the p38-MAPK/HSP27-mediated pathways in lung squamous cell carcinoma. Int J Biol Sci 2020; 16:2883-2894. [PMID: 33061803 PMCID: PMC7545707 DOI: 10.7150/ijbs.45710] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 08/23/2020] [Indexed: 12/13/2022] Open
Abstract
Lung squamous cell carcinoma (SCC) is one of the deadliest cancers both in China and worldwide. To date, the efficacy of lung SCC treatments is limited. Recent studies have elucidated the powerful anti-tumour role of dioscin in different human cancers. Here, our study aims to investigate the effect of dioscin on lung SCC and its underlying mechanism. First, we found that dioscin not only inhibited cell proliferation and cell migration and induced cell apoptosis in lung SCC cells but also suppressed tumour growth in tumour-bearing mice. Furthermore, we noted that the accumulation of intracellular reactive oxygen species (ROS) was triggered by dioscin in lung SCC cells, leading to the phosphorylation of HSP27 through p38-MAPK and consequent cell apoptosis. The activation of p38-MAPK/HSP27 induced by the p38-MAPK activator Anisomycin enhanced the apoptosis of lung SCC cells, while the ROS inhibitor N-acetyl-L-cysteine (NAC) and the p38-MAPK inhibitor SB203580 both attenuated dioscin-mediated cell apoptosis. Moreover, NAC suppressed the activation of p38-MAPK/HSP27 that induced by dioscin. In conclusion, these results confirm that dioscin facilitates ROS-induced apoptosis via the p38-MAPK/HSP27-mediated pathway in lung SCC.
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Affiliation(s)
- Yinan Yao
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Luyun Cui
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jiani Ye
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Guangdie Yang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Guohua Lu
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaomei Fang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Zhu Zeng
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jianying Zhou
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Abstract
The present study evaluated the potential protective effects of puerarin and its associated mechanism on burn-induced myocardial damage. A total of 40 healthy adult Wistar rats were randomly divided into four groups: i) Sham; ii) burn; iii) burn + puerarin; and iv) puerarin. Serum levels of interleukin (IL)-1β, tumor necrosis factor-α (TNF-α) and IL-6 were measured using ELISA. Myeloperoxidase (MPO) activity and malondialdehyde (MDA) levels were determined in myocardial homogenates using a commercial assay kit. TUNEL staining and western blot analysis of cleaved and pro-caspase-3 were also performed to assess apoptosis. Activation of p38-MAPK, ERK, JNK and AKT were measured using western blot analysis. Left ventricular systolic pressure, maximum rates of increase/decrease in left ventricular pressure, creatine kinase MB activity and cardiac troponin T levels were found to be altered in the burn group 12 h after burn, which were reversed by puerarin treatment. Injection of puerarin following burn injury also reduced heart water content. Serum levels of IL-1β, TNF-α and IL-6 were significantly higher in the burn group compared with those in the sham group. Puerarin treatment reduced serum levels of IL-1β, TNF-α and IL-6, in addition to reducing MPO activity and MDA levels in myocardial tissues. Puerarin inhibited the activation of caspase-3, p38, ERK and JNK following severe burn, but elevated Akt activation following severe burn. In conclusion, puerarin improved cardiac function in rats following severe burn injury, which may be due to reduced myocardial injury, inhibition of cardiomyocyte apoptosis and reduced oxidative inflammatory stress; the MAPK and AKT signaling pathways are proposed to the underlying mechanism of these findings.
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Affiliation(s)
- Junling Liu
- Department of Burn, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Jianyun Liu
- Department of Burn, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Mingming Bai
- Department of Burn, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Hui Wang
- Department of Burn, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
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27
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Taei A, Samadian A, Ghezel-Ayagh Z, Mollamohammadi S, Moradi S, Kiani T, Janzamin E, Farzaneh Z, Tahamtani Y, Braun T, Hassani SN, Baharvand H. Suppression of p38-MAPK endows endoderm propensity to human embryonic stem cells. Biochem Biophys Res Commun 2020; 527:811-817. [PMID: 32446562 DOI: 10.1016/j.bbrc.2020.04.119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 04/22/2020] [Indexed: 12/28/2022]
Abstract
The ability of human embryonic stem cells (hESCs) to proliferate unlimitedly and give rise to all tissues makes these cells a promising source for cell replacement therapies. To realize the full potential of hESCs in cell therapy, it is necessary to interrogate regulatory pathways that influence hESC maintenance and commitment. Here, we reveal that pharmacological attenuation of p38 mitogen-activated protein kinase (p38-MAPK) in hESCs concomitantly augments some characteristics associated with pluripotency and the expressions of early lineage markers. Moreover, this blockage capacitates hESCs to differentiate towards an endoderm lineage at the expense of other lineages upon spontaneous hESC differentiation. Notably, hESCs pre-treated with p38-MAPK inhibitor exhibit significantly improved pancreatic progenitor directed differentiation. Together, our findings suggest a new approach to the robust endoderm differentiation of hESCs and potentially enables the facile derivation of various endoderm-derived lineages such as pancreatic cells.
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Affiliation(s)
- Adeleh Taei
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
| | - Azam Samadian
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Zahra Ghezel-Ayagh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Sepideh Mollamohammadi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Sharif Moradi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Cancer Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Isar 11, 47138-18983, Babol, Iran
| | - Tahereh Kiani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Ehsan Janzamin
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Zahra Farzaneh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Yaser Tahamtani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran; Department of Diabetes, Obesity, and Metabolism, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Thomas Braun
- Department of Cardiac Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Seyedeh-Nafiseh Hassani
- Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran.
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran.
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Höving AL, Schmidt KE, Merten M, Hamidi J, Rott AK, Faust I, Greiner JFW, Gummert J, Kaltschmidt B, Kaltschmidt C, Knabbe C. Blood Serum Stimulates p38-Mediated Proliferation and Changes in Global Gene Expression of Adult Human Cardiac Stem Cells. Cells 2020; 9:cells9061472. [PMID: 32560212 PMCID: PMC7349155 DOI: 10.3390/cells9061472] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/05/2020] [Accepted: 06/13/2020] [Indexed: 12/18/2022] Open
Abstract
During aging, senescent cells accumulate in various tissues accompanied by decreased regenerative capacities of quiescent stem cells, resulting in deteriorated organ function and overall degeneration. In this regard, the adult human heart with a generally low regenerative potential is of extreme interest as a target for rejuvenating strategies with blood borne factors that might be able to activate endogenous stem cell populations. Here, we investigated for the first time the effects of human blood plasma and serum on adult human cardiac stem cells (hCSCs) and showed significantly increased proliferation capacities and metabolism accompanied by a significant decrease of senescent cells, demonstrating a beneficial serum-mediated effect that seemed to be independent of age and sex. However, RNA-seq analysis of serum-treated hCSCs revealed profound effects on gene expression depending on the age and sex of the plasma donor. We further successfully identified key pathways that are affected by serum treatment with p38-MAPK playing a regulatory role in protection from senescence and in the promotion of proliferation in a serum-dependent manner. Inhibition of p38-MAPK resulted in a decline of these serum-mediated beneficial effects on hCSCs in terms of decreased proliferation and accelerated senescence. In summary, we provide new insights in the regulatory networks behind serum-mediated protective effects on adult human cardiac stem cells.
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Affiliation(s)
- Anna L. Höving
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (J.H.); (A.-K.R.); (J.F.W.G.)
- Institute for Laboratory- and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr University Bochum, 32545 Bad Oeynhausen, Germany; (I.F.); (C.K.)
- Correspondence: (A.L.H.); (C.K.)
| | - Kazuko E. Schmidt
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (J.H.); (A.-K.R.); (J.F.W.G.)
- Institute for Laboratory- and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr University Bochum, 32545 Bad Oeynhausen, Germany; (I.F.); (C.K.)
| | - Madlen Merten
- AG Molecular Neurobiology, University of Bielefeld, 33615 Bielefeld, Germany; (M.M.); (B.K.)
| | - Jassin Hamidi
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (J.H.); (A.-K.R.); (J.F.W.G.)
| | - Ann-Katrin Rott
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (J.H.); (A.-K.R.); (J.F.W.G.)
| | - Isabel Faust
- Institute for Laboratory- and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr University Bochum, 32545 Bad Oeynhausen, Germany; (I.F.); (C.K.)
| | - Johannes F. W. Greiner
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (J.H.); (A.-K.R.); (J.F.W.G.)
| | - Jan Gummert
- Department of Thoracic and Cardiovascular surgery, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany;
| | - Barbara Kaltschmidt
- AG Molecular Neurobiology, University of Bielefeld, 33615 Bielefeld, Germany; (M.M.); (B.K.)
| | - Christian Kaltschmidt
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (J.H.); (A.-K.R.); (J.F.W.G.)
- Correspondence: (A.L.H.); (C.K.)
| | - Cornelius Knabbe
- Institute for Laboratory- and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr University Bochum, 32545 Bad Oeynhausen, Germany; (I.F.); (C.K.)
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Farkhondeh T, Mehrpour O, Buhrmann C, Pourbagher-Shahri AM, Shakibaei M, Samarghandian S. Organophosphorus Compounds and MAPK Signaling Pathways. Int J Mol Sci 2020; 21:ijms21124258. [PMID: 32549389 PMCID: PMC7352539 DOI: 10.3390/ijms21124258] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/07/2020] [Accepted: 06/09/2020] [Indexed: 02/06/2023] Open
Abstract
The molecular signaling pathways that lead to cell survival/death after exposure to organophosphate compounds (OPCs) are not yet fully understood. Mitogen-activated protein kinases (MAPKs) including the extracellular signal-regulated protein kinase (ERK), the c-Jun NH2-terminal kinase (JNK), and the p38-MAPK play the leading roles in the transmission of extracellular signals into the cell nucleus, leading to cell differentiation, cell growth, and apoptosis. Moreover, exposure to OPCs induces ERK, JNK, and p38-MAPK activation, which leads to oxidative stress and apoptosis in various tissues. However, the activation of MAPK signaling pathways may differ depending on the type of OPCs and the type of cell exposed. Finally, different cell responses can be induced by different types of MAPK signaling pathways after exposure to OPCs.
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Affiliation(s)
- Tahereh Farkhondeh
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences (BUMS), Birjand 9717853577, Iran; (T.F.); (O.M.); (A.M.P.-S.)
| | - Omid Mehrpour
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences (BUMS), Birjand 9717853577, Iran; (T.F.); (O.M.); (A.M.P.-S.)
- Rocky Mountain Poison and Drug Safety, Denver Health, Denver, CO 80204, USA
| | - Constanze Buhrmann
- Musculoskeletal Research Group and Tumour Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, D-80336 Munich, Germany;
| | - Ali Mohammad Pourbagher-Shahri
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences (BUMS), Birjand 9717853577, Iran; (T.F.); (O.M.); (A.M.P.-S.)
| | - Mehdi Shakibaei
- Musculoskeletal Research Group and Tumour Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, D-80336 Munich, Germany;
- Correspondence: (M.S.); (S.S.)
| | - Saeed Samarghandian
- Healthy Ageing Research Center, Neyshabur University of Medical Sciences, Neyshabur 9318614139, Iran
- Correspondence: (M.S.); (S.S.)
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Ma N, Teng X, Zheng Q, Chen P. The regulatory mechanism of p38/MAPK in the chondrogenic differentiation from bone marrow mesenchymal stem cells. J Orthop Surg Res 2019; 14:434. [PMID: 31831024 PMCID: PMC6909593 DOI: 10.1186/s13018-019-1505-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 11/28/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a degenerative joint disease characterized by articular cartilage degradation and joint inflammation, in which growth factors are significantly involved. The extracellular signal-regulated p38 MAPK pathways play important roles in the regulation of osteogenic and chondrogenic differentiation in bone marrow mesenchymal stem cells (BMSCs). However, the exact mechanism remains unclear. METHODS In this study, the chondrogenic differentiation of human BMSCs was initiated in micromass culture in the presence of TGF-β1 for 14 days. Quantitative RT-PCR and Western blot were performed to detect the transfection effect of shRNA-p38 interfering plasmid in BMSCs. The protein expressions of p/t-p38, SOX9, collagen II, Aggrecan, p/t-Smad1, and p/t-Smad4, as well as the kinase activities of p38/ERK/JNK pathway, were investigated using Western blot analysis. Additionally, the level of chondroitin sulfate and glycosaminoglycans (GAG) expression were measured by Alcian blue staining and GAG assay kit via qualitative and quantitative methods, respectively. RESULTS The results demonstrated that p38 pathway was activated in the chondrogenic differentiation of BMSCs induced by TGF-β1. Cartilage-specific genes and chondrogenic regulators, such as SOX9, collagen II, Aggrecan, and GAG, were upregulated by TGF-β1, which could be reversed by predisposed with shRNA-p38 interfering plasmid and p38-MAPK inhibitors (SB203580). Moreover, the activation of p38/ERK/JNK pathways in the presence of TGF-β1 was suppressed by shRNA-p38 and SB203580 treatment. CONCLUSION Collectively, the activation of p38/ERK/JNK/Smad pathways plays a facilitated role in the chondrogenic differentiation induced by TGF-β1. After suppressing the p38 pathway, the chondrogenesis can be inhibited, which can be used to guide the treatment of osteoarthritis.
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Affiliation(s)
- Ning Ma
- Department of Orthopedics, Zhejiang Taizhou Central Hospital (Affiliated Hospital of Taizhou University), No. 999 Donghai Avenue, Jiaojiang District, Taizhou, 318000, Zhejiang, China
| | - Xiao Teng
- Department of Orthopedics, Zhejiang Taizhou Central Hospital (Affiliated Hospital of Taizhou University), No. 999 Donghai Avenue, Jiaojiang District, Taizhou, 318000, Zhejiang, China
| | - Qi Zheng
- Department of Orthopedics, Zhejiang Taizhou Central Hospital (Affiliated Hospital of Taizhou University), No. 999 Donghai Avenue, Jiaojiang District, Taizhou, 318000, Zhejiang, China
| | - Peng Chen
- Department of Orthopedics, Yan Cheng Third People's Hospital (Affiliated Yancheng Hospital of Southeast University Medical College), No.2 Xindu West Road, Yancheng, 224001, Jiangsu, China.
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Cui S, Nian Q, Chen G, Wang X, Zhang J, Qiu J, Zhang Z. Ghrelin ameliorates A549 cell apoptosis caused by paraquat via p38-MAPK regulated mitochondrial apoptotic pathway. Toxicology 2019; 426:152267. [PMID: 31381934 DOI: 10.1016/j.tox.2019.152267] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 07/26/2019] [Accepted: 08/01/2019] [Indexed: 11/19/2022]
Abstract
Paraquat has relatively strong detrimental effects on humans and animals and can cause acute lung injury with high mortality. Ghrelin is a brain-gut peptide which plays important roles in regulating various physiological processes. This study investigated whether ghrelin could inhibit paraquat-induced lung injuries and attempted to elucidate the possible molecular mechanisms. A549 cells were preincubated with different concentrations of ghrelin and then treated with 200 μM of PQ for 24 h. Then cell survival, apoptosis, cellular oxidative stress and lipid peroxidation of A549 cells were detected after different treatments. Subsequently, we analyzed the mitochondrial membrane potential (ΔΨm) and measured caspase-3 activation in A549 cells. In addition, we investigated the activation of the MAPKs pathway and the function of p38-MAPK within mitochondrial apoptosis. Our study indicated that ghrelin administration improved cell viability and reduced apoptosis of PQ-treated A549 cells dose-dependently. Ghrelin treatment reduced the elevation of ROS and MDA, while improved GSH content in A549 cells after paraquat exposure. Moreover, we found that ghrelin dose-dependently increased ΔΨm and decreased caspase-3 activity. The phosphorylated p38 MAPK and JNK levels elevated following PQ exposure, while the phosphorylation of p38 MAPK decreased following ghrelin pretreatment. p38 MAPK siRNA or SB203580 pretreatment ameliorated PQ-caused cell injury and apoptosis related signals, however, the intracellular ROS production was not affected. N-Acetylcysteine (NAC), a classic antioxidant pretreatment decreased the phosphorylated p38 MAPK level and intracellular ROS production, alleviated cell injury, and inhibited apoptosis. The results showed that p38-MAPK pathway plays an important role in PQ-caused alveolar epithelial cell insult, and ghrelin might attenuate PQ-induced cell injury by inhibiting ROS-induced p38-MAPK modulated mitochondrial apoptotic pathway.
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Affiliation(s)
- Shuqing Cui
- Standardized Residency Training Center, Binzhou Medical University Hospital, Binzhou 256603, China
| | - Qing Nian
- Department of Emergency, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Gang Chen
- Department of Vascular Intervention, Binzhou Medical University Hospital, Binzhou 256603, China
| | - Xingyong Wang
- Department of Emergency, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Jinying Zhang
- Department of Emergency, Binzhou Medical University Hospital, Binzhou 256603, China
| | - Jianqing Qiu
- Department of Emergency, Binzhou Medical University Hospital, Binzhou 256603, China.
| | - Zhiqiang Zhang
- Department of Emergency, Binzhou Medical University Hospital, Binzhou 256603, China.
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Pal P, Hales K, Petrik J, Hales DB. Pro-apoptotic and anti-angiogenic actions of 2-methoxyestradiol and docosahexaenoic acid, the biologically derived active compounds from flaxseed diet, in preventing ovarian cancer. J Ovarian Res 2019; 12:49. [PMID: 31128594 PMCID: PMC6535187 DOI: 10.1186/s13048-019-0523-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 05/10/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND We have previously shown that a whole flaxseed supplemented diet decreased the onset and severity of ovarian cancer in the laying hen, the only known animal model of spontaneous ovarian cancer. Flaxseed is rich in omega-3 fatty acids (OM3FA), mostly α-Linoleic acid (ALA), which gets converted to Docosahexaenoic acid (DHA) by the action of delta-6 desaturase enzyme. Ingestion of flaxseed also causes an increase in production of 2-methoxyestradiol (2MeOE2) via the induction of the CYP1A1 pathway of estrogen metabolism. We have previously reported that the flaxseed diet induces apoptosis via p38-MAPK pathway in chicken tumors. The objective of this study was to investigate the effect of the flaxseed diet on ovarian cancer in chickens, focusing on two hallmarks of cancer, apoptosis and angiogenesis. RESULTS The anti-cancer effects of two active biologically derived compounds of flax diet, 2MeOE2 and DHA, were individually tested on human ovarian cancer cells and in vivo by the Chick Chorioallantoic Membrane (CAM) assay. Our results indicate that a flaxseed-supplemented diet promotes apoptosis and inhibits angiogenesis in chicken tumors but not in normal ovaries. 2MeOE2 promotes apoptosis in human ovarian cancer cells, inhibits angiogenesis on CAM and its actions are dependent on the p38-MAPK pathway. DHA does not have any pro-apoptotic effect on human ovarian cancer cells but has strong anti-angiogenic effects as seen on CAM, but not dependent on the p38-MAPK pathway. CONCLUSIONS Dietary flaxseed supplementation promotes a pro-apoptotic and anti-angiogenic effect in ovarian tumors, not in normal ovaries. The biologically derived active compounds from flaxseed diet act through different pathways to elicit their respective anti-cancer effects. A flaxseed-supplemented diet is a promising approach for prevention of ovarian cancer as well as having a significant potential as an adjuvant treatment to supplement chemotherapeutic agents for treatment of advanced stages of ovarian cancer.
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Affiliation(s)
- Purab Pal
- Department of Physiology, Southern Illinois University, 1125 Lincoln Drive, Life Science II, Room 245B, Carbondale, IL, 62901, USA
| | - Karen Hales
- Department of Obstetrics and Gynecology, Southern Illinois University School of Medicine, Springfield, IL, 62702, USA
| | - Jim Petrik
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Dale Buchanan Hales
- Department of Physiology, Southern Illinois University, 1125 Lincoln Drive, Life Science II, Room 245B, Carbondale, IL, 62901, USA.
- Department of Obstetrics and Gynecology, Southern Illinois University School of Medicine, Springfield, IL, 62702, USA.
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Wartchow KM, Rodrigues L, Suardi LZ, Federhen BC, Selistre NG, Gonçalves CA, Sesterheim P. Short-Term Protocols to Obtain Insulin-Producing Cells from Rat Adipose Tissue: Signaling Pathways and In Vivo Effect. Int J Mol Sci 2019; 20:E2458. [PMID: 31109026 DOI: 10.3390/ijms20102458] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/09/2019] [Accepted: 05/13/2019] [Indexed: 02/06/2023] Open
Abstract
Studies using mesenchymal stromal cells (MSCs) as a source of insulin-secreting cells (IPCs) are a promising path in the pursuit for diabetes therapy. Here, we investigate three short-term differentiation protocols in order to generate IPCs from autologous adipose-derived stromal cells (ADSCs) with an expressive insulin-secreting profile in vitro and in vivo, as well as the signaling pathways involved in the chosen differentiation protocols. We extracted and cultured ADSCs and differentiated them into IPCs, using three different protocols with different inductors. Afterwards, the secretory profile was analyzed and IPCs differentiated in exendin-4/activin A medium, which presented the best secretory profile, was implanted in the kidney subcapsular region of diabetic rats. All protocols induced the differentiation, but media supplemented with exendin-4/activin A or resveratrol induced the expression and secretion of insulin more efficiently, and only the exendin-4/activin-A-supplemented medium generated an insulin secretion profile more like β-cells, in response to glucose. The PI3K/Akt pathway seems to play a negative role in IPC differentiation; however, the differentiation of ADSCs with exendin-4/activin A positively modulated the p38/MAPK pathway. Resveratrol medium activated the Jak/STAT3 pathway and generated IPCs apparently less sensitive to insulin and insulin-like receptors. Finally, the implant of IPCs with the best secretory behavior caused a decrease in hyperglycemia after one-week implantation in diabetic rats. Our data provide further information regarding the generation of IPCs from ADSCs and strengthen evidence to support the use of MSCs in regenerative medicine, specially the use of exendin-4/activin A to produce rapid and effectively IPCs with significant in vivo effects.
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Tang F, Zhang R, Wang J. Cyclooxygenase-2-Mediated Up-Regulation of Mitochondrial Transcription Factor A Mitigates the Radio-Sensitivity of Cancer Cells. Int J Mol Sci 2019; 20:E1218. [PMID: 30862036 DOI: 10.3390/ijms20051218] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/22/2019] [Accepted: 03/07/2019] [Indexed: 12/23/2022] Open
Abstract
Mitochondrial transcription factor A (TFAM) regulates mitochondrial biogenesis, and it is a candidate target for sensitizing tumor during therapy. Previous studies identified that increased TFAM expression conferred tumor cells resistance to ionizing radiation. However, the mechanisms on how TFAM are regulated in irradiated tumor cells remain to be explored. In this research, we demonstrated the contribution of cyclooxygenase-2 (COX-2) to enhancing TFAM expression in irradiated tumor cells. Our results showed TFAM was concomitantly up-regulated with COX-2 in irradiated tumor cells. Inhibition of COX-2 by NS-398 blocked radiation-induced expression of TFAM, and prostaglandin E2 (PGE2) treatment stimulated TFAM expression. We next provided evidence that DRP1-mediated mitochondrial fragmentation was a reason for TFAM up-regulation in irradiated cells, by using small interfering RNA (siRNA) and selective inhibitor-targeted DRP1. Furthermore, we proved that p38-MAPK-connected COX-2, and DRP1-mediated TFAM up-regulation. Enhanced phosphorylation of p38 in irradiated tumor cells promoted DRP1 expression, mitochondrial fragmentation, and TFAM expression. NS-398 treatment inhibited radiation-induced p38 phosphorylation, while PGE2 stimulated the activation of p38. The results put forward a mechanism where COX-2 stimulates TFAM expression via p38-mediated DRP1/mitochondrial fragmentation signaling in irradiated tumor cells, which may be of value in understanding how to sensitize cancer cells during radiotherapy.
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Zavala MR, Díaz RG, Medina AJ, Acosta MP, Escudero DS, Ennis IL, Pérez NG, Villa-Abrille MC. p38-MAP Kinase Negatively Regulates the Slow Force Response to Stretch in Rat Myocardium through the Up-Regulation of Dual Specificity Phosphatase 6 (DUSP6). Cell Physiol Biochem 2019; 52:172-185. [PMID: 30816666 DOI: 10.33594/000000012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 02/22/2019] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS Myocardial stretch increases cardiac force in two consecutive phases: The first one due to Frank-Starling mechanism, followed by the gradually developed slow force response (SFR). The latter is the mechanical counterpart of an autocrine/paracrine mechanism involving the release of angiotensin II (Ang II) and endothelin (ET) leading to Na⁺/H⁺ exchanger 1 (NHE-1) phosphorylation and activation. Since previous evidence indicates that p38-MAP kinase (p38-MAPK) negatively regulates the Ang II-induced NHE1 activation in vascular smooth muscle and the positive inotropic effect of ET in the heart, we hypothesized that this kinase might modulate the magnitude of the SFR to stretch. METHODS Experiments were performed in isolated rat papillary muscles subjected to sudden stretch from 92 to 98% of its maximal length, in the absence or presence of the p38-MAPK inhibitor SB202190, or its inactive analogous SB202474. Western blot technique was used to determine phosphorylation level of p38-MAPK, ERK1/2, p90RSK and NHE-1 (previously immunoprecipitated with NHE-1 polyclonal antibody). Dual specificity phosphatase 6 (DUSP6) expression was evaluated by RT-PCR and western blot. Additionally, the Na⁺-dependent intracellular pH recovery from an ammonium prepulse-induced acid load was used to asses NHE-1 activity. RESULTS The SFR was larger under p38-MAPK inhibition (SB202190), effect that was not observed in the presence of an inactive analogous (SB202474). Myocardial stretch activated p38-MAPK, while pre-treatment with SB202190 precluded this effect. Inhibition of p38-MAPK increased stretched-induced NHE-1 phosphorylation and activity, key event in the SFR development. Consistently, p38-MAPK inhibition promoted a greater increase in ERK1/2-p90RSK phosphorylation/activation after myocardial stretch, effect that may certainly be responsible for the observed increase in NHE-1 phosphorylation under this condition. Myocardial stretch induced up-regulation of the DUSP6, which specifically dephosphorylates ERK1/2, effect that was blunted by SB202190. CONCLUSION Taken together, our data support the notion that p38-MAPK activation after myocardial stretch restricts the SFR by limiting ERK1/2-p90RSK phosphorylation, and consequently NHE-1 phosphorylation/activity, through a mechanism that involves DUSP6 up-regulation.
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Affiliation(s)
- Maite R Zavala
- Centro de Investigaciones Cardiovasculares "Dr. Horacio E. Cingolani", CONICET La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Romina G Díaz
- Centro de Investigaciones Cardiovasculares "Dr. Horacio E. Cingolani", CONICET La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Andrés J Medina
- Centro de Investigaciones Cardiovasculares "Dr. Horacio E. Cingolani", CONICET La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - María P Acosta
- Centro de Investigaciones Cardiovasculares "Dr. Horacio E. Cingolani", CONICET La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Daiana S Escudero
- Centro de Investigaciones Cardiovasculares "Dr. Horacio E. Cingolani", CONICET La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Irene L Ennis
- Centro de Investigaciones Cardiovasculares "Dr. Horacio E. Cingolani", CONICET La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Néstor G Pérez
- Centro de Investigaciones Cardiovasculares "Dr. Horacio E. Cingolani", CONICET La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - María C Villa-Abrille
- Centro de Investigaciones Cardiovasculares "Dr. Horacio E. Cingolani", CONICET La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina,
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Curtis M, Kenny HA, Ashcroft B, Mukherjee A, Johnson A, Zhang Y, Helou Y, Batlle R, Liu X, Gutierrez N, Gao X, Yamada SD, Lastra R, Montag A, Ahsan N, Locasale JW, Salomon AR, Nebreda AR, Lengyel E. Fibroblasts Mobilize Tumor Cell Glycogen to Promote Proliferation and Metastasis. Cell Metab 2019; 29:141-155.e9. [PMID: 30174305 PMCID: PMC6326875 DOI: 10.1016/j.cmet.2018.08.007] [Citation(s) in RCA: 169] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 06/22/2018] [Accepted: 08/02/2018] [Indexed: 12/29/2022]
Abstract
Successful metastasis requires the co-evolution of stromal and cancer cells. We used stable isotope labeling of amino acids in cell culture coupled with quantitative, label-free phosphoproteomics to study the bidirectional signaling in ovarian cancer cells and human-derived, cancer-associated fibroblasts (CAFs) after co-culture. In cancer cells, the interaction with CAFs supported glycogenolysis under normoxic conditions and induced phosphorylation and activation of phosphoglucomutase 1, an enzyme involved in glycogen metabolism. Glycogen was funneled into glycolysis, leading to increased proliferation, invasion, and metastasis of cancer cells co-cultured with human CAFs. Glycogen mobilization in cancer cells was dependent on p38α MAPK activation in CAFs. In vivo, deletion of p38α in CAFs and glycogen phosphorylase inhibition in cancer cells reduced metastasis, suggesting that glycogen is an energy source used by cancer cells to facilitate metastatic tumor growth.
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Affiliation(s)
- Marion Curtis
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Hilary A Kenny
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Bradley Ashcroft
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Abir Mukherjee
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Alyssa Johnson
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Yilin Zhang
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Ynes Helou
- Department of Molecular Biology, Cell Biology, and Biochemistry/Center of Genomics and Proteomics, Brown University, Providence, RI 02903, USA
| | - Raquel Batlle
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - Xiaojing Liu
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC 27705, USA
| | - Nuria Gutierrez
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - Xia Gao
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC 27705, USA
| | - S Diane Yamada
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Ricardo Lastra
- Department of Pathology, University of Chicago, Chicago, IL 60637, USA
| | - Anthony Montag
- Department of Pathology, University of Chicago, Chicago, IL 60637, USA
| | - Nagib Ahsan
- Division of Biology and Medicine, Alpert Medical School, Brown University, Providence, RI 02903, USA; Center for Cancer Research Development, Proteomics Core Facility, Rhode Island Hospital, Providence, RI 02903, USA
| | - Jason W Locasale
- Department of Pharmacology and Cancer Biology, Duke Cancer Institute, Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC 27705, USA
| | - Arthur R Salomon
- Department of Molecular Biology, Cell Biology, and Biochemistry/Center of Genomics and Proteomics, Brown University, Providence, RI 02903, USA; Center for Cancer Research Development, Proteomics Core Facility, Rhode Island Hospital, Providence, RI 02903, USA
| | - Angel R Nebreda
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, 08028 Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Ernst Lengyel
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA.
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Xiong F, Xiao J, Bai Y, Zhang Y, Li Q, Lishuang X. Metformin inhibits estradiol and progesterone-induced decidualization of endometrial stromal cells by regulating expression of progesterone receptor, cytokines and matrix metalloproteinases. Biomed Pharmacother 2019; 109:1578-85. [PMID: 30551411 DOI: 10.1016/j.biopha.2018.10.128] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/20/2018] [Accepted: 10/21/2018] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is a serious threat for reproductive-aged women. Metformin has been used for the treatment of PCOS. However, its molecular mechanism in decidualization process of PCOS has not been well featured. METHODS RT-qPCR analysis was used to detect expression patterns of progesterone receptor (PGR), estradiol receptor alpha (ERα), Cytokeratin 8 and Vimentin in endometrial tissues of PCOS and non-PCOS patients. RT-qPCR assay was also employed to determine mRNA expression of prolactin, Insulin-like growth factor-binding protein 1 (IGFBP-1), matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP9). Cytokine secretion were measured by matching ELISA kits. Protein expression of p-ERK1/2, ERK1/2, p-p38 MAPK, p38 MAPK, and PGR (PGRA and PGRB) was tested by western blot assay. RESULTS PGR expression was upregulated in PCOS patients. Metformin alleviated estradiol (E2) and progesterone (P4) (EP)-induced decidualization of endometrial stromal cells. Abnormal cytokine secretion was observed in EP-stimulated endometrial stromal cells in the absence or presence of metfromin. Metformin suppressed EP-induced MMP-2 and MMP-9 upregulation. Metformin alleviated EP-triggered p38 MAPK inactivation and PGR (PGRA and PGRB) expression. Metfromin had no effect on ERK1/2 signaling in EP-stimulated endometrial stromal cells. CONCLUSION Metformin alleviated EP-induced decidualization of endometrial stromal cells by modulating secretion of multiple cytokines, inhibiting expression of MMP-2 and MMP-9, activating p38-MAPK signaling and reducing PGR expression, providing a deep insight into the molecular basis of metfromin therapy for PCOS patients.
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Hung MY, Wu YH, Bamodu OA, Chen X, Lin YK, Hu P, Chang NC, Pang JHS, Yeh CT. Activation of the monocytic α7 nicotinic acetylcholine receptor modulates oxidative stress and inflammation-associated development of coronary artery spasm via a p38 MAP-kinase signaling-dependent pathway. Free Radic Biol Med 2018; 120:266-276. [PMID: 29609021 DOI: 10.1016/j.freeradbiomed.2018.03.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 03/28/2018] [Accepted: 03/29/2018] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Smoking and high-sensitivity C-reactive protein (hs-CRP) are risk factors for coronary artery spasm (CAS), which is characterized by the increased interleukin-6 (IL-6) level and monocyte counts; however, limited data are available regarding the role of cigarette-embedded nicotine in the modulation of monocytic inflammatory activity in CAS. APPROACH We investigated and elucidated the putative roles and associations of nicotine, monocytic IL-6, α7 nicotinic acetylcholine receptor (α7-nAChR), and CRP in CAS development. RESULTS We demonstrated that a significantly increased α7-nAChR (p = 0.001) and IL-6 (p = 0.0036) messenger RNA (mRNA) expression in the serum of patients with CAS. Serum hs-CRP levels exhibited a strong positive correlation with the monocytic mRNA expression of α7-nAChR (r = 0.71, p < 0.001) and IL-6 (r = 0.49, p = 0.006). The α7-nAChR and IL-6 expression levels of the CAS group were also positively correlated (r = 0.63, p < 0.001). Compared with the untreated controls, THP-1 cells and patient-derived monocytes treated with different concentrations of CRP displayed significantly increased expression levels of α7-nAChR mRNA and protein (p = 0.0054), in a dose-dependent manner. We also demonstrated that compared with the IL-6 expression elicited by CRP alone (p = 0.0489), the CRP-induced rise in monocytic IL-6 mRNA and protein expression in the presence of nicotine (p = 0.0002), is mediated by α7-nAChR activation and the deregulation of the human p38 mitogen-activated protein kinases (MAPK) signaling pathway. CONCLUSIONS Our data demonstrate that the elevated monocytic IL-6 and α7-nAChR mRNA and protein expression levels are associated with the interaction between nicotine and CRP positively modulates CAS development. Our study suggests the potential role of α7-nAChR mRNA and/or protein expression as a diagnostic biomarker for CAS.
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Affiliation(s)
- Ming-Yow Hung
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
| | - Yi-Hong Wu
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Oluwaseun Adebayo Bamodu
- Department of Hematology and Oncology, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan; Department of Medical Research and Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan
| | - Xi Chen
- International Medical Center, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang Province, China
| | - Yen-Kuang Lin
- Biostatistics Research Center, Taipei Medical University, Taipei, Taiwan
| | - Patrick Hu
- International Cardiovascular Institute, Las Vegas, Nevada, USA; Department of Cardiology, Riverside Medical Clinic, Riverside, California, USA
| | - Nen-Chung Chang
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan; Division of Cardiology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Jong-Hwei Su Pang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Linkou, Taoyuan City, Taiwan.
| | - Chi-Tai Yeh
- Department of Medical Research and Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan.
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Wang J, Dong B, Yu ZX, Yao CL. The impact of acute thermal stress on green mussel Perna viridis: Oxidative damage and responses. Comp Biochem Physiol A Mol Integr Physiol 2018; 222:7-15. [PMID: 29654820 DOI: 10.1016/j.cbpa.2018.04.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 04/04/2018] [Accepted: 04/04/2018] [Indexed: 12/19/2022]
Abstract
Examining the physiological responses of mussels to thermal stress is crucial to evaluate their biogeographic distribution and ability to adapt to a changing climate. In the present study, we investigated the effects of acute cold (8 °C and 15 °C) and heat (35 °C and 42 °C) stress on the mortality rate, reactive oxygen species (ROS) production, malondialdehyde (MDA) content, mitochondrial membrane potential (MMP) and antioxdative responses in the gill tissue of the green mussel species Perna viridis. Our results showed that cold and heat stress induced a temperature-dependent increase in mortality rate. ROS production increased significantly (p < 0.01) after both cold and heat stress. However, the activities of antioxidant enzymes, including SOD, CAT and GSH-Px, were greatly enhanced only after heat stress. In addition, MDA content and MMP increased significantly under both cold and heat stress. The up-regulation of Hsp70 transcripts was only detected after acute stress at 35 °C. However, p38-MAPK phosphorylation levels increased after both cold and heat stress. In addition, a moderate activation of caspase-3 was found after mussels were exposed to 8 °C and 42 °C stress. Our results suggest that both extreme cold and heat stress could induce ROS production in the gill tissue of P. viridis, which might result in lipid peroxidation and mitochondria dysfunction. Antioxidative enzymes and Hsp70 might be important in the heat stress response of animals, whereas p38-MAPK might be crucial in the acute response to both cold and heat stress. However, caspase-3 activation might be very weak under both cold and heat stress.
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Liu P, Wei M, Zhang J, Wang R, Li B, Chen Q, Weng Q. Changes in mycelia growth, sporulation, and virulence of Phytophthora capsici when challenged by heavy metals (Cu 2+, Cr 2+ and Hg 2+) under acid pH stress. Environ Pollut 2018; 235:372-380. [PMID: 29306805 DOI: 10.1016/j.envpol.2017.12.100] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 12/15/2017] [Accepted: 12/25/2017] [Indexed: 06/07/2023]
Abstract
Phytophthora capsici, an economically devastating oomycete pathogen, causes devastating disease epidemics on a wide range of vegetable plants and pose a grave threat to global vegetables production. Heavy metals and acid pH are newly co-occurring stresses to soil micro-organisms, but what can be expected for mycelia growth and virulence and how they injure the oomycetes (especially P. capsici) remains unknown. Here, the effects of different heavy metals (Cu2+, Cr2+, and Hg2+) on mycelia growth and virulence were investigated at different pHs (4.0 vs. 7.0) and the plausible molecular and physiological mechanisms were analyzed. In the present study, we compared the effective inhibition of different heavy metals (Cu2+, Cr2+, and Hg2+) and acid pH on a previously genome sequenced P. capsici virulent strain LT1534. Both stress factors independently affected its mycelia growth and sporulation. Next, we investigated whether ROS participated in the pH-inhibited mycelial growth, finding that the ROS scavenger, catalase (CAT), significantly inhibited the acid pH-induced ROS in mycelia. Additionally, because MAPK specially transmits different stress responsive signals in environment into cells, we employed CAT and a p38-MAPK pathway inhibitor to investigate ROS and p38-MAPK roles in heavy metal-inhibited mycelia growth at different pHs (4.0 vs. 7.0), finding that they significantly inhibited growth. Furthermore, ROS and p38-MAPK influenced the heavy metal-induced TBARS content, total antioxidant capacity (TAC), and CAT activity at different pHs, and also reduced the expression of infection-related laccases (PcLAC2) and an effector-related protein (PcNLP14). We propose that acid pH stress accelerates how heavy metals inhibit mycelium growth, sporulation, and virulence change in P. capsici, and posit that ROS and p38-MAPK function to regulate the molecular and physiological mechanisms underlying this toxicity. Although these stresses induce molecular and physiological challenges to oomycetes, much remains to be known the mechanisms dedicated to resolve these environmental stresses.
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Affiliation(s)
- Peiqing Liu
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China.
| | - Mengyao Wei
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
| | - Jinzhu Zhang
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
| | - Rongbo Wang
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
| | - Benjin Li
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
| | - Qinghe Chen
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
| | - Qiyong Weng
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
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Mi X, Wang C, Sun C, Chen X, Huo X, Zhang Y, Li G, Xu B, Zhang J, Xie J, Wang Z, Li J. Xanthohumol induces paraptosis of leukemia cells through p38 mitogen activated protein kinase signaling pathway. Oncotarget 2018; 8:31297-31304. [PMID: 28415750 PMCID: PMC5458208 DOI: 10.18632/oncotarget.16185] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/06/2017] [Indexed: 12/14/2022] Open
Abstract
Xanthohumol as a natural polyphenol demonstrates an anticancer activity, but its underlying mechanism remains unclear. In this study, we showed that xanthohumol (XN) induces paraptosis of leukemia cells. The paraptosis is one cell death which is characterized by dilation of the endoplasmic reticulum and/or mitochondria. The results demonstrated that XN treatment significantly inhibited cell proliferation and triggered extensive cytoplasmic vacuolation of HL-60 leukemia cells, but it did not cause the cleavage of caspase-3 protein or apoptosis. In contrast, XN treatment resulted in LC3-II accumulation through blocking of autophagosome maturation. Interestingly, the induction of cytoplasmic vacuolization by XN is not associated with autophagy modulated by XN, therefore, XN-induced cell death of HL-60 leukemia cells is not the classical apoptotic cell death. Intriguingly, XN treatment triggered the dilatation of endoplasma reticulum (ER) and induced ER stress by upregulating C/EBP homologous protein and unfolded protein response regulator Grp78/Bip. Furthermore, XN treatment triggered p38 mitogen activated protein kinase and its specific inhibitor inhibited the paraptosis of HL-60 leukemia cells by XN. In conclusion, we for the first time demonstrated that XN treatment can induce paraptosis of leukemia cells through activation of p38 MAPK signaling.
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Affiliation(s)
- Xiangquan Mi
- School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Center for Mitochondrial and Healthy Aging, College of Life Sciences, Yantai University, Yantai, Shandong 264005, P.R. China
| | - Chunming Wang
- School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Chao Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
| | - Xu Chen
- School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Xiang Huo
- School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yiming Zhang
- Center for Mitochondrial and Healthy Aging, College of Life Sciences, Yantai University, Yantai, Shandong 264005, P.R. China
| | - Gang Li
- Center for Mitochondrial and Healthy Aging, College of Life Sciences, Yantai University, Yantai, Shandong 264005, P.R. China
| | - Bo Xu
- Center for Mitochondrial and Healthy Aging, College of Life Sciences, Yantai University, Yantai, Shandong 264005, P.R. China
| | - Jun Zhang
- Shihezi University School of Medicine, Shihezi, Xinjiang 832000, P.R. China
| | - Jianxin Xie
- Shihezi University School of Medicine, Shihezi, Xinjiang 832000, P.R. China
| | - Zhenhua Wang
- Center for Mitochondrial and Healthy Aging, College of Life Sciences, Yantai University, Yantai, Shandong 264005, P.R. China
| | - Ji Li
- Center for Mitochondrial and Healthy Aging, College of Life Sciences, Yantai University, Yantai, Shandong 264005, P.R. China
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Zhang Y, Xu M, Zhang X, Chu F, Zhou T. MAPK/c-Jun signaling pathway contributes to the upregulation of the anti-apoptotic proteins Bcl-2 and Bcl-xL induced by Epstein-Barr virus-encoded BARF1 in gastric carcinoma cells. Oncol Lett 2018; 15:7537-7544. [PMID: 29725459 PMCID: PMC5920478 DOI: 10.3892/ol.2018.8293] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 08/08/2017] [Indexed: 12/13/2022] Open
Abstract
BARF1, encoded by Epstein-Barr virus (EBV), has been hypothesized to function as an oncogene, which was expressed in gastric carcinoma cells. Additionally, it has been reported that the anti-apoptotic function is closely associated with the expression of the B-cell lymphoma-2 (Bcl-2) protein. In addition, the signaling pathway has been reported to be involved in numerous diseases, including the mitogen-activated protein kinase (MAPK) cascade. In order to study the specific mechanism of anti-apoptotic function, BARF1-stably-expressing immortalized normal human embryo gastric epithelial cell line GES1 (GES-BARF1), and well-, moderately- and poorly-differentiated gastric carcinoma cell lines, MKN28 (which has been reported to be contaminated with the moderately-differentiated MKN74 gastric carcinoma cell line), SGC7901 and BGC823 (MKN-BARF1, SGC-BARF1 and BGC-BARF1, respectively) (GCC-BARF1) were constructed, with transfection of cells with the empty vector pSG5 acting as controls. Western blot analysis was performed to analyze the protein expression and the phosphorylation levels. Compared with the controls, it was found that the protein expression levels of c-Jun, Bcl-2 and B-cell lymphoma-extra large (Bcl-xL), as well as the phosphorylation levels of c-Jun, c-Jun N-terminal kinase (JNK) 1/2/3, p38 and extracellular signal-regulated kinase (ERK) 1/2 proteins were upregulated in 3 GCC-BARF1 but not significantly changed in GES-BARF1. The expression levels of the c-Jun, Bcl-2 and Bcl-xL proteins, and levels of c-Jun protein phosphorylation were significantly decreased in SGC-BARF1 cells subsequent to treatment with SP600125, SB203580, and U0126, which were the specific inhibitors of JNK1/2/3, p38 and ERK1/2 respectively. In addition, there was a gradual increase in the protein expression and phosphorylation levels between normal gastric epithelial cells, and well-differentiated, moderately-differentiated and poorly-differentiated gastric carcinoma cells, but this was not statistically significant. Therefore, the present study hypothesized that JNK1/2/3-, p38- and ERK1/2-MAPK/c-Jun cascade signaling pathways may contribute to the upregulation of the expression of the anti-apoptotic proteins Bcl-2 and Bcl-xL induced by BARF1 in gastric carcinoma cells. This mechanism may mainly work in the progressive phase of the development in EBV-associated gastric carcinoma.
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Affiliation(s)
- Yuqiong Zhang
- Department of Clinical Laboratory and Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China.,Department of Clinical Laboratory, Suzhou Municipal Hospital Affiliated to Nanjing Medical University, Suzhou, Jiangsu 215168, P.R. China
| | - Meiqin Xu
- Department of Clinical Laboratory, Suzhou Psychiatric Hospital, Suzhou, Jiangsu 215137, P.R. China
| | - Xueyi Zhang
- Department of Biochemistry, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Fuying Chu
- Department of Clinical Laboratory and Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Tianji Zhou
- Department of Clinical Laboratory and Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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Li J, Bao L, Zha D, Zhang L, Gao P, Zhang J, Wu X. Oridonin protects against the inflammatory response in diabetic nephropathy by inhibiting the TLR4/ p38-MAPK and TLR4/NF-κB signaling pathways. Int Immunopharmacol 2018; 55:9-19. [PMID: 29207360 DOI: 10.1016/j.intimp.2017.11.040] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/22/2017] [Accepted: 11/28/2017] [Indexed: 10/18/2022]
Abstract
Inflammation plays a pivotal role in the development and progression of diabetic nephropathy (DN). Oridonin (Ori), a component isolated from Rabdosia rubescens, possesses remarkable anti-inflammatory, immunoregulatory and antitumor properties. However, the renoprotective effects of Ori and the underlying molecular mechanisms have not been explored in DN. In this study, we aimed to investigate the protective effects and potential mechanisms responsible for the anti-inflammatory effects of Ori in diabetes-induced renal injury in vivo and in vitro. Our results showed that Ori significantly attenuated diabetes-induced renal injury and markedly decreased urinary protein excretion levels, serum creatinine concentrations and blood urea nitrogen concentrations in rats. Ori also significantly alleviated infiltration of inflammatory cells (cluster of differentiation (CD)68) in kidney tissues and reduced the levels of pro-inflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), IL-1β and monocyte chemotactic protein 1 (MCP-1), both in vivo and in vitro. TLR4 is a principal mediator of innate immune and inflammatory responses and participates in the development of DN. Our molecular studies indicated that Ori administration significantly down-regulated TLR4 overexpression in DN. Additional studies were conducted to investigate the effect of Ori on the p38-mitogen-activated protein kinase (p38-MAPK) and nuclear factor (NF)-κB pathways. The results showed that Ori inhibited IκBα, p65, and p38 phosphorylation, as well as NF-κB DNA-binding activity. In conclusion, these results demonstrated that Ori exerts protective effects in diabetes-induced renal injury in vivo and in vitro. These effects may be ascribed to its anti-inflammatory and modulatory effects on the TLR4/p38-MAPK and TLR4/NF-κB signaling pathways.
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Affiliation(s)
- Jushuang Li
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Liping Bao
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Dongqing Zha
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Lian Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Ping Gao
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Juan Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
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Ranieri M, Zahedi K, Tamma G, Centrone M, Di Mise A, Soleimani M, Valenti G. CaSR signaling down-regulates AQP2 expression via a novel microRNA pathway in pendrin and NaCl cotransporter knockout mice. FASEB J 2018; 32:2148-2159. [PMID: 29212817 DOI: 10.1096/fj.201700412rr] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
High concentrations of urinary calcium counteract vasopressin action via the activation of the calcium-sensing receptor (CaSR) that is expressed in the luminal membrane of collecting duct cells, which impairs the trafficking of aquaporin-2 (AQP2). Pendrin/NaCl cotransporter double-knockout (dKO) mice display significant calcium wasting and develop severe volume depletion, despite increased circulating vasopressin levels. We hypothesized that the CaSR-mediated impairment of AQP2 expression/trafficking underlies vasopressin resistance in dKO mice. Compared with wild-type mice, in renal inner medulla, dKO mice had reduced total AQP2 sensitive to proteasome inhibitors, higher levels of AQP2-pS261, ubiquitinated AQP2, and p38-MAPK, an enzyme that is activated by CaSR signaling and known to phosphorylate AQP2 at Ser261. CaSR inhibition with the calcilytic NPS2143 reversed these effects, which indicates that CaSR mediates the up-regulation of AQP2-pS261, ubiquitination, and degradation. Of note, dKO mice demonstrated significantly higher AQP2-targeting miRNA-137 that was reduced upon CaSR inhibition, supporting a critical role for CaSR in the down-regulation of AQP2 expression. Our data indicate that CaSR signaling reduces AQP2 abundance both via AQP2-targeting miRNA-137 and the p38-MAPK/AQP2-pS261/ubiquitination/proteasomal axis. These effects may contribute to the reduced renal concentrating ability that has been observed in dKO mice and underscore a physiologic mechanism of the CaSR-dependent regulation of AQP2 abundance via a novel microRNA pathway.-Ranieri, M., Zahedi, K., Tamma, G., Centrone, M., Di Mise, A., Soleimani, M., Valenti, G. CaSR signaling down-regulates AQP2 expression via a novel microRNA pathway in pendrin and NaCl cotransporter knockout mice.
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Affiliation(s)
- Marianna Ranieri
- Department of Biosciences, Biotechnologies, and Biopharmaceutics University of Bari, Bari, Italy
| | - Kamyar Zahedi
- Research Services, Veterans Affairs Medical Center, Cincinnati, Ohio, USA.,Department of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Center on Genetics of Transport and Epithelial Biology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Grazia Tamma
- Department of Biosciences, Biotechnologies, and Biopharmaceutics University of Bari, Bari, Italy.,Istituto Nazionale di Biostrutture e Biosistemi, Rome, Italy
| | - Mariangela Centrone
- Department of Biosciences, Biotechnologies, and Biopharmaceutics University of Bari, Bari, Italy
| | - Annarita Di Mise
- Department of Biosciences, Biotechnologies, and Biopharmaceutics University of Bari, Bari, Italy
| | - Manoocher Soleimani
- Research Services, Veterans Affairs Medical Center, Cincinnati, Ohio, USA.,Department of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.,Center on Genetics of Transport and Epithelial Biology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Giovanna Valenti
- Department of Biosciences, Biotechnologies, and Biopharmaceutics University of Bari, Bari, Italy.,Istituto Nazionale di Biostrutture e Biosistemi, Rome, Italy.,Centre of Excellence in Comparative Genomics, University of Bari, Bari, Italy
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Abstract
A misfolded version of the prion protein represents an essential component in the pathophysiology of fatal neurodegenerative prion diseases, which affect humans and animals alike. They may be of sporadic origin, acquired through exogenous introduction of infectious misfolded prion protein, or caused by genetic alterations in the prion protein coding gene. We have recently described a novel pathway linking retention of mutant prion protein in the early secretory pathway to activation p38-MAPK and a neurodegenerative phenotype in transgenic mice. Here we review the consequences that mutations in prion protein have on intracellular transport and stress responses focusing on protein quality control. We also discuss the neurotoxic signaling elicited by the accumulation of mutant prion protein in the endoplasmic reticulum and the Golgi apparatus. Improved knowledge about these processes will help us to better understand complex pathogenesis of prion diseases, a prerequisite for therapeutic strategies.
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Affiliation(s)
- Berta Puig
- a Institute of Neuropathology, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Hermann C Altmeppen
- a Institute of Neuropathology, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Markus Glatzel
- a Institute of Neuropathology, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
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46
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Zuo F, Wei T, Tong D, Zhang Y, Chen XR, Zeng Y. [Pharmacodynamic mechanism of modified Ganlu Yaoyu San intreatment of rheumatoid arthritis based on MAPK signaling pathway]. Zhongguo Zhong Yao Za Zhi 2017; 42:1245-1250. [PMID: 29052381 DOI: 10.19540/j.cnki.cjcmm.20170222.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Indexed: 11/18/2022]
Abstract
According to the findings, modified Ganlu Yaoyu San has a good anti-inflammatory activity, and can significantly alleviate the degree of arthritis. Its therapeutic effect for rheumatoid arthritis may be related to the regulation of MAPK pathway of synovial cells. In the study, the rat adjuvant arthritis(AA) model was established to further investigate the pharmacodynamic mechanism for regulating MAPK pathway of synovial cells. Enzyme-linked immune assay was used to determine the serum TNF-α level of AA rats administered with drug for two weeks, synovial tissue protein kinases ERK1/2 and p38 content were determined by immunohistochemistry, synovial tissue JNK1, ERK1, p38 gene(mRNA) expression were detected with fluorescence quantitative PCR(RT-PCR) method. According to the results, after administration for two weeks, the levels of serum TNF-α of AA rat was significantly decreased(P<0.05). After administration for four weeks, the protein expressions of p38 and ERK1/2 in synovial tissue were reduced(P<0.05 or P<0.01), the gene expressions of JNK1, p38 and ERK1 in knee joint synovial tissue were reduced(P<0.05 or P<0.01). In conclusion, modified Ganlu Yaoyu San can effectively treat rheumatoid arthritis. Its mechanism might be related to the reduction of TNF-α levels in serum, protein expression of p38 and ERK1/2 in synovial tissue, and JNK1, p38 and ERK1 gene expressions, and regulation of MAPK pathway.
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Affiliation(s)
- Fang Zuo
- Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ting Wei
- Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Dong Tong
- Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yi Zhang
- Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xiao-Rui Chen
- Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yong Zeng
- Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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Pang L, Li P, Zhang R, Xu Y, Song L, Zhou Q. Role of p38-MAPK pathway in the effects of high-magnitude compression on nucleus pulposus cell senescence in a disc perfusion culture. Biosci Rep 2017; 37:BSR20170718. [PMID: 28620118 DOI: 10.1042/BSR20170718] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/14/2017] [Accepted: 06/14/2017] [Indexed: 01/12/2023] Open
Abstract
Nucleus pulposus (NP) cell senescence is a typical pathological feature within the degenerative intervertebral disc. As a potential inducing and aggregating factor of disc degeneration, mechanical overloading affects disc biology in multiple ways. The present study was to investigate the NP cell senescence-associated phenotype under intermittent high compression in an ex vivo disc bioreactor culture, and the role of the p38-MAPK pathway in this regulatory process. Porcine discs were cultured in culture chambers of a self-developed mechanically active bioreactor and subjected to different magnitudes of dynamic compression (low-magnitude and high-magnitude: 0.1 and 1.3 MPa at a frequency of 1.0 Hz for 2 h per day respectively) for 7 days. Non-compressed discs were used as controls. The inhibitor SB203580 was used to study the role of the p38-MAPK pathway in this process. Results showed that intermittent high-magnitude compression clearly induced senescence-associated changes in NP cells, such as increasing β-galactosidase-positive NP cells, decreasing PCNA-positive NP cells, promoting the formation of senescence-associated heterochromatic foci (SAHF), up-regulating the expression of senescence markers (p16 and p53), and attenuating matrix production. However, inhibition of the p38-MAPK pathway partly attenuated the effects of intermittent high-magnitude (1.3 MPa) compression on those described NP cell senescence-associated parameters. In conclusion, intermittent high-magnitude compression can induce NP cell senescence-associated changes in an ex vivo disc bioreactor culture, and the p38-MAPK pathway is involved in this process.
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Wang CH, Zhu LL, Ju KF, Liu JL, Li KP. Anti-inflammatory effect of delphinidin on intramedullary spinal pressure in a spinal cord injury rat model. Exp Ther Med 2017; 14:5583-5588. [PMID: 29285096 DOI: 10.3892/etm.2017.5206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 11/25/2016] [Indexed: 12/23/2022] Open
Abstract
Delphinidin, a flavonoid polyphenolic compound, is widely found in nature and is used as a food supplement due to its pharmacological activity. The aims of the present study were to examine the anti-inflammatory effect of delphinidin in alleviating spinal cord injury (SCI)-induced inflammation in a rat model and to determine the underlying mechanisms in SCI. The Basso, Beattie, Bresnahan (BBB) scores of rats were assessed to evaluate the effect of delphinidin on the recovery of motor function. ELISA kits were also used to analyze the activities of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, cyclooxygenase-2 (COX-2), prostaglandin E2 (PGE2) and caspase-3. In addition, the protein expression levels of nuclear factor (NF)-κB, activator protein 1 (AP-1) and p38-MAPK protein expression were measured using western blot analysis. Treatment with delphinidin significantly increased the BBB scores, as well as inhibited the intramedullary spinal pressure in SCI rats. Delphinidin treatment also significantly suppressed the levels of inflammatory factors and NF-κB protein expression in SCI rats. Finally, treatment with delphinidin significantly inhibited NF-κB stimulation, COX-2 activity, PGE2 production, and AP-1 and p38-MAPK protein expression in SCI rats. These results suggest that the anti-inflammatory effect of delphinidin alleviated inflammation in the SCI rat model via alleviation of the intramedullary spinal pressure through the NF-κB and p38-MAPK signaling pathways.
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Affiliation(s)
- Cheng-Hu Wang
- Department of Orthopedics, Liaocheng People's Hospital, Liaocheng Clinical School of Taishan Medical University, Liaocheng, Shandong 252000, P.R. China
| | - Lin-Lin Zhu
- Department of Orthopedics, Liaocheng People's Hospital, Liaocheng Clinical School of Taishan Medical University, Liaocheng, Shandong 252000, P.R. China
| | - Ke-Feng Ju
- Department of Orthopedics, Weifang Cancer Hospital The Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261000, P.R. China
| | - Jin-Long Liu
- Department of Orthopedics, Liaocheng People's Hospital, Liaocheng Clinical School of Taishan Medical University, Liaocheng, Shandong 252000, P.R. China
| | - Kun-Peng Li
- Department of Orthopedics, Liaocheng People's Hospital, Liaocheng Clinical School of Taishan Medical University, Liaocheng, Shandong 252000, P.R. China
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Zhang A, Lakshmanan J, Motameni A, Harbrecht BG. MicroRNA-203 suppresses proliferation in liver cancer associated with PIK3CA, p38 MAPK, c-Jun, and GSK3 signaling. Mol Cell Biochem 2017; 441:89-98. [PMID: 28887744 DOI: 10.1007/s11010-017-3176-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 09/01/2017] [Indexed: 12/16/2022]
Abstract
Primary liver cancer (hepatocellular carcinoma, HCC) is a leading cause of cancer-related deaths, and alternative ways to treat this disease are urgently needed. In recent years, novel approaches to cancer treatment have been based on microRNAs, small non-coding RNA molecules that play a crucial role in cancer progression by regulating gene expression. Overexpression of some microRNAs has shown therapeutic potential, but whether or not this was the case for microRNA-203 (miR-203) in liver cancer was unknown. Therefore, the aim of this study was to investigate the effect of miR-203 overexpression in liver cancer and explore the related mechanisms. Liver cancer cells from the HepG2 and Hep3B cell lines were transfected with either miR-203 mimics or negative control RNA, and then the cells were subjected to cell viability, cell proliferation, and Western blotting assays. As a result of microRNA-203 overexpression, HepG2 and Hep3B cell viability and cell proliferation significantly declined. Furthermore, microRNA-203 overexpression led to inhibited expression of phosphatidylinositol-4,5-bisphosphate 3-kinase (PIK3)/protein kinase B (Akt), c-Jun, and p38 mitogen-activated protein kinases (p38 MAPK), and restored glycogen synthase kinase 3 (GSK 3) activity in HepG2 cells. Our results suggest that c-Jun, p38 MAPK, PIK3CA/Akt, and GSK3 signaling involved in the effect of miR-203 on the proliferation of HCC cells.
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Affiliation(s)
- Annie Zhang
- Price Institute of Surgical Research and Department of Surgery, University of Louisville, Louisville, KY, 40202, USA
| | - Jaganathan Lakshmanan
- Price Institute of Surgical Research and Department of Surgery, University of Louisville, Louisville, KY, 40202, USA.
| | - Amirreza Motameni
- Price Institute of Surgical Research and Department of Surgery, University of Louisville, Louisville, KY, 40202, USA
| | - Brian G Harbrecht
- Price Institute of Surgical Research and Department of Surgery, University of Louisville, Louisville, KY, 40202, USA
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50
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Imran KM, Rahman N, Yoon D, Jeon M, Lee BT, Kim YS. Cryptotanshinone promotes commitment to the brown adipocyte lineage and mitochondrial biogenesis in C3H10T1/2 mesenchymal stem cells via AMPK and p38-MAPK signaling. Biochim Biophys Acta Mol Cell Biol Lipids 2017; 1862:1110-1120. [PMID: 28807877 DOI: 10.1016/j.bbalip.2017.08.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 08/07/2017] [Accepted: 08/09/2017] [Indexed: 12/18/2022]
Abstract
Although white adipose tissue (WAT) stores triglycerides and contributes to obesity, brown adipose tissue (BAT) dissipates energy as heat. Therefore, browning of WAT is regarded as an attractive way to counteract obesity. Our previous studies have revealed that treatment with cryptotanshinone (CT) during adipogenesis of 3T3-L1 cells inhibits their differentiation. Here, we found that pretreatment of C3H10T1/2 mesenchymal stem cells with CT before exposure to adipogenic hormonal stimuli promotes the commitment of these mesenchymal stem cells to the adipocyte lineage as confirmed by increased triglyceride accumulation. Furthermore, CT treatment induced the expression of early B-cell factor 2 (Ebf2) and bone morphogenetic protein 7 (Bmp7), which are known to drive differentiation of C3H10T1/2 mesenchymal stem cells toward preadipocytes and to the commitment to brown adipocytes. Consequently, CT treatment yielded brown-adipocyte-like features as evidenced by elevated expression of brown-fat signature genes including Ucp1, Prdm16, Pgc-1α, Cidea, Zic1, and beige-cell-specific genes such as CD137, Hspb7, Cox2, and Tmem26. Additionally, CT treatment induced mitochondrial biogenesis through upregulation of Sirt1, Tfam, Nrf1, and Cox7a and increased mitochondrial mass and DNA content. Our data also showed that cotreatment with CT and BMP4 was more effective at activating brown-adipocyte-specific genes. Mechanistic experiments revealed that treatment with CT activated AMPKα and p38-MAPK via their phosphorylation: the two major signaling pathways regulating energy metabolism. Thus, these findings suggest that CT is a candidate therapeutic agent against obesity working via activation of browning and mitochondrial biogenesis in C3H10T1/2 mesenchymal stem cells.
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Affiliation(s)
- Khan Mohammad Imran
- Dept. of Microbiology, College of Medicine, Soonchunhyang University, Korea; Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Korea
| | - Naimur Rahman
- Dept. of Microbiology, College of Medicine, Soonchunhyang University, Korea; Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Korea
| | - Dahyeon Yoon
- Dept. of Microbiology, College of Medicine, Soonchunhyang University, Korea; Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Korea
| | - Miso Jeon
- Dept. of Microbiology, College of Medicine, Soonchunhyang University, Korea; Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Korea
| | - Byong-Taek Lee
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Korea; Dept. of Tissue Engineering, College of Medicine, Soonchunhyang University, Korea
| | - Yong-Sik Kim
- Dept. of Microbiology, College of Medicine, Soonchunhyang University, Korea; Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Korea.
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