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Li L, Chen M, Li G, Cai R. Raddeanin A induced apoptosis of non-small cell lung cancer cells by promoting ROS-mediated STAT3 inactivation. Tissue Cell 2021; 71:101577. [PMID: 34146943 DOI: 10.1016/j.tice.2021.101577] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/06/2021] [Accepted: 06/07/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE Non-small cell lung cancer (NSCLC) is a high-risk type of lung cancer. Raddeanin A exerts anti-tumor activity by regulating cell proliferation and apoptosis, but its role in NSCLC remains to be elucidated. This study was to investigate the effect of raddeanin A in NSCLC and its mechanism. METHODS The effect of raddeanin A (2, 4, 8, 10 μmol/L) on the viability, proliferation and apoptosis of A549 and H1299 cells was determined by cell counting kit-8, colony formation and flow cytometry assays, respectively. Next, western blot was performed to examine the protein expressions of cleaved caspase-3, Bax, phosphorylated signal transducer and activator of transcription 3 (p-STAT3) and STAT3. Subsequently, the intracellular reactive oxygen species (ROS) generation and mitochondrial membrane potential of NSCLC cells were detected by 2', 7'-dichlorofluorescein-diacetate (DCFH-DA) and JC-1 assay. Lastly, the effect of N-acetylcysteine (NAC) on the apoptosis, ROS generation, and STAT3 was evaluated by the above-mentioned assays again. RESULTS Raddeanin A treatment had no obvious effect on 16HBE cells viability, but it inhibited viability and proliferation of A549 and H1299 cells, promoted the apoptosis, increased the protein expressions of cleaved caspase-3 and Bax, generated intracellular ROS, as well as decreased mitochondrial membrane potential and the expressions of p-STAT3 and STAT3 in A549 and H1299 cells. After cells treated with NAC, the effect of raddeanin A was reversed, as evidenced by the apoptosis and ROS generation were suppressed, and the expression of p-STAT3 was promoted. CONCLUSION Raddeanin A suppressed the proliferation and induced apoptosis of NSCLC cells via promoting the ROS-mediated STAT3 inactivation.
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Affiliation(s)
- Liang Li
- Department of Thoracic Surgery, Hainan General Hospital, China
| | - Minbiao Chen
- Department of Thoracic Surgery, Hainan General Hospital, China
| | - Gao Li
- Department of Thoracic Surgery, Hainan General Hospital, China
| | - Renzhong Cai
- Department of Thoracic Surgery, Hainan General Hospital, China.
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102
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Mizobuchi M, Ishidoh K, Kamemura N. A comparison of cell death mechanisms of antioxidants, butylated hydroxyanisole and butylated hydroxytoluene. Drug Chem Toxicol 2021; 45:1899-1906. [PMID: 34013795 DOI: 10.1080/01480545.2021.1894701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Butylated hydroxyanisole (BHA) and the chemically similar butylated hydroxytoluene (BHT) are widely used as antioxidants. Toxicity of BHA and BHT has been reported under in vitro and in vivo experimental conditions. However, the mechanism of BHA-induced toxic effects in cells is unclear. In this study, the cytotoxic effects of BHA and differences in cell death mechanism for BHA and BHT were investigated in rat thymocytes by flow cytometric analysis using a fluorescent probe. We observed a significant increase in propidium iodide fluorescence in the population of cells treated with 100 μM and 300 μM BHA (dead cells). Thymocytes treated with 100 µM BHA showed increased intracellular Ca2+ and Zn2+ levels and depolarized cell membranes. BHA (30-100 µM) decreased non-protein thiol content of cells, indicating decreased glutathione content. Co-stimulation with 100 µM BHA and 300 µM H2O2 acted synergistically to increase cell lethality. Moreover, BHA significantly increased caspase-3 activity and the number of annexin-V-positive cells in a concentration-dependent manner, indicating apoptosis. However, BHT reduced caspase-3 activity and increased the number of annexin-V-negative dead cells, indicating non-apoptotic cell death. Our results reveal the toxicity of BHA could be attributed to increased levels of intracellular Ca2+ and Zn2+, resulting in an increased vulnerability of rat thymocytes to oxidative stress. In addition, we demonstrate that whereas BHA induced apoptosis, BHT induced non-apoptotic cell death in rat thymocytes. Therefore, these results may support the safety of BHA, but also demonstrate the importance of performing toxicity evaluation at the cellular level besides the tissue level.
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Affiliation(s)
- Mizuki Mizobuchi
- Department of Food-Nutrition Sciences, Faculty of Life Sciences, Tokushima Bunri University, Tokushima, Japan
| | - Kazumi Ishidoh
- Department of Food-Nutrition Sciences, Faculty of Life Sciences, Tokushima Bunri University, Tokushima, Japan
| | - Norio Kamemura
- Department of Food-Nutrition Sciences, Faculty of Life Sciences, Tokushima Bunri University, Tokushima, Japan
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103
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Zhao F, Feng G, Zhu J, Su Z, Guo R, Liu J, Zhang H, Zhai Y. 3-Methyladenine-enhanced susceptibility to sorafenib in hepatocellular carcinoma cells by inhibiting autophagy. Anticancer Drugs 2021; 32:386-393. [PMID: 33395067 PMCID: PMC7952045 DOI: 10.1097/cad.0000000000001032] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/11/2020] [Indexed: 12/25/2022]
Abstract
As an effective targeted therapy for advanced hepatocellular carcinoma (HCC), sorafenib resistance has been frequently reported in recent years, with the activation of autophagy by cancer cells under drug stress being one of the crucial reasons. Sorafenib treatment could enhance autophagy in HCC cells and autophagy is also considered as an important mechanisms of drug resistance. Therefore, the inhibition of autophagy is a potential way to improve the sensitivity and eliminate drug resistance to restore their efficacy. To determine whether autophagy is involved in sorafenib resistance and investigate its role in the regulation of HepG2 cells' (an HCC cell line) chemosensitivity to sorafenib, we simultaneously treated HepG2 with sorafenib and 3-Methyladenine (3-MA) (a common autophagy inhibitor). First, by performing cell counting kit 8 cell viability assay, Hoechst 33342 apoptosis staining, and Annexin V-fluorescein isothiocyanate/propidium iodide apoptosis kit detection, we found that both sorafenib and 3-MA effectively inhibitted the proliferative activity of HepG2 cells and induced their apoptosis to a certain extent. This effect was significantly enhanced after these two drugs were combined, which was also confirmed by the increased expression of apoptosis-related proteins. Subsequently, by using AAV-GFP-LC3 transfection methods and transmission electron microscopy, we found that both the number and activity of autophagosomes in HepG2 cells in sorafenib and 3-MA group were significantly reduced, suggesting that autophagy activity was inhibited, and this result was consistent with the expression results of autophagy-related proteins. Therefore, we conclude that 3-MA may attenuate the acquired drug resistance of sorafenib by counteracting its induction of autophagy activity, thus enhancing its sensitivity to advanced HCC therapy.
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Affiliation(s)
- Fangfang Zhao
- Department of Infectious Disease, Fujian Medical University Affiliated First Quanzhou Hospital, Quanzhou, Fujian
- Department of Infectious Disease, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Guohe Feng
- Department of Infectious Disease, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Junyao Zhu
- Department of Infectious Disease, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zhijun Su
- Department of Infectious Disease, Fujian Medical University Affiliated First Quanzhou Hospital, Quanzhou, Fujian
| | - Ruyi Guo
- Department of Infectious Disease, Fujian Medical University Affiliated First Quanzhou Hospital, Quanzhou, Fujian
| | - Jiangfu Liu
- Department of Infectious Disease, Fujian Medical University Affiliated First Quanzhou Hospital, Quanzhou, Fujian
| | - Huatang Zhang
- Department of Infectious Disease, Fujian Medical University Affiliated First Quanzhou Hospital, Quanzhou, Fujian
| | - Yongzhen Zhai
- Department of Infectious Disease, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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104
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Anti-fatigue activity of gardenia yellow pigment and Cistanche phenylethanol glycosides mixture in hypoxia. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.100902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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105
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Overexpression of microRNA-205-5p exerts suppressive effects on stem cell drug resistance in gallbladder cancer by down-regulating PRKCE. Biosci Rep 2021; 40:226278. [PMID: 32869841 PMCID: PMC7533283 DOI: 10.1042/bsr20194509] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 08/06/2020] [Accepted: 08/13/2020] [Indexed: 12/14/2022] Open
Abstract
Some microRNAs (miRs or miRNAs) have been reported to function as tumor suppressors in gallbladder cancer (GBC). However, the specific effect of miR-205-5p on GBC remains unclear. The objective of the present study was to unravel the effects of miR-205-5p on the drug resistance in GBC. For this purpose, the expression of miR-205-5p and protein kinase C ϵ (PRKCE) was quantified in the peripheral blood sample harvested from GBC patients and healthy volunteers. Then the relationship between miR-205-5p and PRKCE was validated. After isolating the GBC stem cells, ectopic expression and depletion experiments were conducted to analyze the effect of miR-205-5p and PRKCE on cell proliferation, drug resistance, apoptosis, and colony formation rate as well as the expression of apoptotic factors (Bcl-2-associated X protein (Bax), B-cell lymphoma 2 (Bcl-2), and cleaved caspase 3). Finally, the mouse xenograft model of GBC was established to verify the function of miR-205-5p in vivo. Intriguingly, our results manifested that miR-205-5p was down-regulated, while PRKCE was up-regulated in peripheral blood samples and stem cells of patients with GBC. Moreover, miR-205-5p targeted PRKCE and negatively regulated its expression. The overexpression of miR-205-5p or silencing of PRKCE inhibited the drug resistance, proliferation, and colony formation rate while promoting apoptosis of GBC stem cells. Additionally, the overexpression of miR-205-5p attenuated drug resistance to gemcitabine but promoted the gemcitabine-induced cell apoptosis by inhibiting the PRKCE in vivo. Overall, an intimate correlation between miR-205-5p and PRKCE is a key determinant of drug resistance of GBC stem cells, thus, suggesting a novel miR-205-5p-based clinical intervention target for GBC patients.
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Zhang K, Zhang X. MiR-146b-3p protects against AR42J cell injury in cerulein-induced acute pancreatitis model through targeting Anxa2. Open Life Sci 2021; 16:255-265. [PMID: 33817317 PMCID: PMC7968541 DOI: 10.1515/biol-2021-0028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 11/17/2020] [Accepted: 11/23/2020] [Indexed: 02/07/2023] Open
Abstract
Background Acute pancreatitis (AP) is a common inflammatory disorder. MicroRNAs play crucial roles in the pathogenesis of AP. In this article, we explored the detailed role and molecular mechanisms of miR-146b-3p in AP progression. Methods The rat AR42J cells were treated with cerulein to establish the AP model in vitro. The miR-146b-3p and Annexin A2 (Anxa2) mRNA levels were assessed by quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR). Cell viability and apoptosis were tested using the Cell Counting Kit-8 (CCK-8) and flow cytometry assays, respectively. Caspase-3 activity and the production of interleukin-1β (IL-1β), IL-6, and tumor necrosis factor-α (TNF-α) were measured by enzyme-linked immunosorbent assay and qRT-PCR. Targeted interaction between miR-146b-3p and Anxa2 was verified by the dual-luciferase reporter and RNA immunoprecipitation assays. Western blot analysis was performed to detect the expression of Anxa2 protein. Results Our data revealed that miR-146b-3p was significantly downregulated in AP samples. The enforced expression of miR-146b-3p alleviated cerulein-induced injury in AR42J cells, as evidenced by the promotion in cell viability and the repression in cell apoptosis, as well as the reduction in IL-1β, IL-6, and TNF-α production. Anxa2 was directly targeted and inhibited by miR-146b-3p. Moreover, the alleviative effect of miR-146b-3p overexpression on cerulein-induced AR42J cell injury was mediated by Anxa2. Conclusions The current work had led to the identification of miR-146b-3p overexpression that protected against cerulein-induced injury in AR42J cells at least in part by targeting Anxa2, revealing a promising target for AP diagnosis and treatment.
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Affiliation(s)
- Kunpeng Zhang
- Department of Hepatobiliary Surgery, Xingtai People's Hospital, Xingtai, Hebei, 054001, China.,Department of Neurology, Xingtai People's Hospital, 16 Hongxing Street, Qiaodong District, Xingtai, Hebei, 054001, China
| | - Xiaoyu Zhang
- Department of Neurology, Xingtai People's Hospital, 16 Hongxing Street, Qiaodong District, Xingtai, Hebei, 054001, China
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107
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Wu M, Li X, Huang W, Chen Y, Wang B, Liu X. Ubiquitin-conjugating enzyme E2T(UBE2T) promotes colorectal cancer progression by facilitating ubiquitination and degradation of p53. Clin Res Hepatol Gastroenterol 2021; 45:101493. [PMID: 32736946 DOI: 10.1016/j.clinre.2020.06.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 06/16/2020] [Accepted: 06/23/2020] [Indexed: 02/04/2023]
Abstract
OBJECTIVES The expression level of Ubiquitin-conjugating enzyme E2T (UBE2T) is upregulated in various types of human tumors. We explored the correlation and regulatory mechanism of UBE2T in the development of colorectal cancer (CRC). METHODS Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to examine the expression of UBE2T in the CRC tissues and cell lines. Immunohistochemical staining, spearman correlation analysis, and Kaplan Meier-survival analysis were used to demonstrate the correlation between UBE2T high expression level and the clinical characteristics of malignant patients and the overall survival. The proliferation, apoptosis, migration and invasion of CRC cells were analyzed by cell transfection, MTT, colony formation, scratch assay, transwell, and flow cytometry. Furthermore, the expression of cell proliferation and apoptosis related proteins and ubiquitination of p53 were detected by western blot. RESULTS UBE2T was up-regulated in CRC tissues and cell lines, and high expression level of UBE2T was correlated with the clinical characteristics of malignant of CRC patients (P<0.05), and patients with high expression level of UBE2T had lower overall survival (P=0.0455). In addition, UBE2T could promote the growth, proliferation, invasion and metastasis of CRC cells and inhibit the apoptosis. At the same time, knockdown of UBE2T inhibited the growth of transplanted tumor in mice of subcutaneous CRC model. Moreover, our experimental results proved that UBE2T regulated the expression of downstream related proteins through ubiquitination of p53 protein to promote the occurrence and development of CRC. CONCLUSION Our study elucidated that high expression of UBE2T would enhance the development of CRC, and then further explored its molecular mechanism both in vitro and in vivo. The results indicated that UBE2T facilitated ubiquitination and degradation of p53, which predicts the possibility of UBE2T as one of molecular diagnosis markers, prognostic indicators and therapeutic drug targets of CRC patients.
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Affiliation(s)
- Mengqiong Wu
- Department of Gynecology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province, 570311, China
| | - Xianglu Li
- Department of Oncology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province, 570311, China
| | - Weiwei Huang
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No.19 Xiu Hua Road, Xiuying District, Haikou City, 570311, Hainan Province, China
| | - Yiming Chen
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No.19 Xiu Hua Road, Xiuying District, Haikou City, 570311, Hainan Province, China
| | - Baochun Wang
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No.19 Xiu Hua Road, Xiuying District, Haikou City, 570311, Hainan Province, China
| | - Xin Liu
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No.19 Xiu Hua Road, Xiuying District, Haikou City, 570311, Hainan Province, China.
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108
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Wang J, Lv P. Chrysophanol inhibits the osteoglycin/mTOR and activats NF2 signaling pathways to reduce viability and proliferation of malignant meningioma cells. Bioengineered 2021; 12:755-762. [PMID: 33622177 PMCID: PMC8291820 DOI: 10.1080/21655979.2021.1885864] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Chrysophanol shows promising antitumor activity, but how it may work against malignant meningioma is poorly understood. In addition, osteoglycin (OGN) may help mediate the antitumor effects of chrysophanol; thus, this study investigated the potential antitumor mechanism of chrysophanol in malignant meningioma cultures. Meningioma cell line HBL-52 were incubated with varying doses of chrysophanol (0-90 μM) for different time points, and osteoglycin (OGN) was overexpressed or inhibited in some cell cultures to assess its roles. Cell viability was quantified using the CCK8 assay and colony formation assays, while effects on cell cycle distribution and apoptotic rates were examined by flow cytometry and enzyme-linked immunosorbent assays (ELISA) to detect histone DNA levels. Caspase-3 and -9 activities were detected by related commercial kits. Protein expression was assessed using Western blotting. Chrysophanol significantly reduced HBL-52 cell viability, based on reduced colony formation, and proliferation, based on low levels of bromodeoxyuridine incorporation. Annexin V/propidium iodide staining revealed a 30% increase in apoptotic cells at 90 μM chrysophanol (33.7% vs 3.3% in control cultures). Chrysophanol treatment greatly decreased the Bcl-2/Bax expression ratio and increased the expressions of cleaved caspase-3 and -9, and the activities of caspase-3 and -9. Chrysophanol blocked cells in G1 phase and inhibited the OGN/mTOR signaling cascade, but activated neurofibromatosis 2 (NF2) cascade. OGN overexpression activated mTOR, down-regulated NF2, and partially reversed growth inhibition by chrysophanol. Chrysophanol may be useful as a treatment against malignant meningioma by inhibiting OGN/mTOR signaling and activating NF2 signaling.
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Affiliation(s)
- Jiapeng Wang
- Department of Intensive Medicine, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei, China
| | - Peng Lv
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Department of Neurosurgery, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei, China
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109
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Wang MJ, Liu WY, Wang XY, Li YM, Xiao HY, Quan RC, Huang G, Hu XM. Autophagy Gene Panel-Based Prognostic Model in Myelodysplastic Syndrome. Front Oncol 2021; 10:606928. [PMID: 33614490 PMCID: PMC7894207 DOI: 10.3389/fonc.2020.606928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/19/2020] [Indexed: 01/18/2023] Open
Abstract
Abnormal autophagy is related to the pathogenesis and clinical symptoms of myelodysplastic syndrome (MDS). However, the effect of autophagy-related genes (ARGs) on the prognosis of MDS remains unclear. Here, we examined the expression profile of 108 patients with MDS from the GSE58831 dataset, and identified 22 genes that were significantly associated with overall survival. Among them, seven ARGs were screened and APIs were calculated for all samples based on the expression of the seven ARGs, and then, MDS patients were categorized into high- and low-risk groups based on the median APIs. The overall survival of patients with high-risk scores based on these seven ARGs was shorter than patients with low-risk scores in both the training cohort (P = 2.851e-06) and the validation cohort (P = 9.265e-03). Additionally, API showed an independent prognostic indicator for survival in the training samples [hazard ratio (HR) = 1.322, 95% confidence interval (CI): 1.158–1.51; P < 0.001] and the validation cohort (HR = 1.05, 95% CI: 1–1.1; P < 0.01). The area under the receiver operating characteristic curve (AUROC) of API and IPSS were 43.0137 and 66.0274 in the training cohorts and the AUC of the validation cohorts were 41.5361 and 72.0219. Our data indicate these seven ARGs can predict prognosis in patients with MDS and could guide individualized treatment.
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Affiliation(s)
- Ming-Jing Wang
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei-Yi Liu
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xue-Ying Wang
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Yu-Meng Li
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Hai-Yan Xiao
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ri-Cheng Quan
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Gang Huang
- Divisions of Pathology and Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Xiao-Mei Hu
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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110
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Carbamazepine, a Histone Deacetylase Inhibitor Induces Apoptosis in Human Colon Adenocarcinoma Cell Line HT-29. J Gastrointest Cancer 2021; 51:564-570. [PMID: 31407251 DOI: 10.1007/s12029-019-00286-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Colon cancer ranks fourth and is responsible for causing 10% cancer-related mortality in western countries. Its incidence is rising in many countries due to widespread adoption of the Western diet and lifestyle. Carbamazepine (CBZ) is a FDA-approved antiepileptic drug and a histone deacetylase inhibitor. The aim of this study is to evaluate the cytotoxic potentials of CBZ in human colon cancer cells (HT-29 cells). METHODS HT-29 cells were treated with 36 and 76 μg/ml of CBZ for 24 h. The cytotoxic effect was evaluated by MTT assay. The intracellular reactive oxygen species (ROS) expression was evaluated through dichloro-dihydro-fluorescein diacetate staining. Morphological changes related to apoptosis were evaluated by dual staining with acridine orange and ethidium bromide. Mitochondrial membrane potential was evaluated by rhodamine 123 staining. Immunofluorescence analysis of caspase 3 was done with confocal microscopy. RESULTS CBZ caused significant cytotoxicity in HT-29 cells and the effect was concentration dependent. CBZ treatments also caused significant expression of ROS in HT-29 cells. Dual staining showed early and late apoptotic cells and morphological alterations induced by the CBZ. Confocal microscopic studies confirmed the increased caspase 3 expression in CBZ-treated cells. CONCLUSION CBZ induced apoptosis in HT-29 cell through ROS generation and caspase 3 expression and these results pave the way for further in vivo studies.
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111
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Zhang J, Zuo T, Yang J, Hu Z, Wang Z, Xu R, Ma S, Wei Y, Shen Q. Hierarchically Releasing Bio-Responsive Nanoparticles for Complete Tumor Microenvironment Modulation via TGF-β Pathway Inhibition and TAF Reduction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:2256-2268. [PMID: 33423468 DOI: 10.1021/acsami.0c18545] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The aggressive progression of breast cancer is impacted significantly by the tumor microenvironment (TME). The current chemotherapy normally causes cytotoxicity to tumor cells, while does not effectively modulate the TME. Thus, the chemotherapy effect of breast cancer is usually dissatisfactory. In this study, a kind of hierarchically releasing bio-responsive nanoparticles (R(D)/H(S) NPs), constructed by β-cyclodextrin-grafted heparin and pH-sensitive pseudorotaxane, were investigated to enhance the breast cancer chemotherapeutic efficacy through TME modulation. Doxorubicin (DOX) and transforming growth factor-β (TGF-β) receptor inhibitor (SB431542) loaded onto R(D)/H(S) NPs were released rapidly for the respective response to low pH in endosomes/lysosomes and heparanase (HPSE) in TME. Our results showed that R(D)/H(S) NPs effectively inhibited the formation of tumor-associated fibroblasts (TAFs) and reduced TGF-β and collagen I secretion. Besides, the immunosuppressive microenvironment was effectively reversed into immunogenic, characterized by increased CD8+ and CD4+ T cell infiltration, which distinctly inhibited breast cancer metastasis. Therefore, R(D)/H(S) NPs remodeled the TME by downregulating TAFs, TGF-β, and collagen I; activating the immune microenvironment; and then amplifying the chemotherapeutic efficacy of DOX.
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Affiliation(s)
- Jun Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Tiantian Zuo
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jie Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zongwei Hu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhihua Wang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Rui Xu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Siyu Ma
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yawen Wei
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Qi Shen
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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112
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Lun YZ, Sun J, Liu B, Dong W, Pan LH, Lin J, Zhang JX. The Inhibitory Effects of Recombinant Hespintor Combined with Sorafenib on Transplanted Human Hepatoma in Nude Mice, and Transcriptional Regulation of Hespintor Based on RNA-Seq. J Cancer 2021; 12:343-357. [PMID: 33391431 PMCID: PMC7738984 DOI: 10.7150/jca.50500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/24/2020] [Indexed: 11/09/2022] Open
Abstract
Objective: As targeted drugs, exogenous serpins could be introduced to patients to restore body balance. This study aimed to observe further the inhibitory effects of recombinant Hespintor (a Kazal-type serpin) combined with Sorafenib on transplanted human hepatoma tumors in nude mice specimens and to explore the possible transcriptional regulation by Hespintor. Methods: A model of human hepatoma tumors transplanted in nude mice was established, and the medication was administrated to observe the growth of the tumors. Four weeks after the drug administration, the tumors were removed to evaluate the inhibition effects of Hespintor on in-situ tumor growth and liver metastasis. The expression levels of MMP2, MMP9, Bax, Bcl-2, and caspase-3 in the tumor organizations were detected with Western blot. The target genes of the Hespintor were screened based on tissue RNA-Seq, and the regulatory network was constructed. Results: It was found that the recombinant Hespintor displayed a significant antitumor effect on the subcutaneous growth of MHCC97-H cells. Moreover, the therapeutic effects of the combination therapy were significantly better than those of single therapy. 10 target genes with significantly different expression by Hespintoron tumor tissue were identified. Finally, a visual regulatory networkwas constructed for target mRNA-pathway. Conclusions: The antitumor effect of Hespintor combined with Sorafenib in treating the subcutaneously implanted hepatocellular carcinoma tumors in nude mice was significant. The possible transcriptional regulation by Hespintor involved multiple signaling pathways, and it was not just the antitumor effect of uPA via its extracellular inhibitions.
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Affiliation(s)
- Yong-Zhi Lun
- Key Laboratory of Medical Microecology, Fujian Province University, School of Pharmacy and Medical Technology, Putian University, Putian 351100, China
| | - Jie Sun
- Key Laboratory of Medical Microecology, Fujian Province University, School of Pharmacy and Medical Technology, Putian University, Putian 351100, China
| | - Ben Liu
- Key Laboratory of Medical Microecology, Fujian Province University, School of Pharmacy and Medical Technology, Putian University, Putian 351100, China
| | - Wen Dong
- Key Laboratory of Medical Microecology, Fujian Province University, School of Pharmacy and Medical Technology, Putian University, Putian 351100, China
| | - Ling-Hong Pan
- Key Laboratory of Medical Microecology, Fujian Province University, School of Pharmacy and Medical Technology, Putian University, Putian 351100, China
| | - Jian Lin
- Key Laboratory of Medical Microecology, Fujian Province University, School of Pharmacy and Medical Technology, Putian University, Putian 351100, China
| | - Jing-Xia Zhang
- Key Laboratory of Medical Microecology, Fujian Province University, School of Pharmacy and Medical Technology, Putian University, Putian 351100, China
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Argenziano M, Di Paola A, Tortora C, Di Pinto D, Pota E, Di Martino M, Perrotta S, Rossi F, Punzo F. Effects of Iron Chelation in Osteosarcoma. Curr Cancer Drug Targets 2020; 21:443-455. [PMID: 33380300 DOI: 10.2174/1568009620666201230090531] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/19/2020] [Accepted: 10/25/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Osteosarcoma is an aggressive bone tumor. It represents the principal cause of cancer-associated death in children. Considering the recent findings on the role of iron in cancer, iron chelation has been investigated for its antineoplastic properties in many tumors. Deferasirox is the most used iron chelator compound and in previous studies showed an anticancer effect in hematologic and solid malignancies. Eltrombopag is a Thrombopoietin receptor used in thrombocytopenia that also binds and mobilize iron. It demonstrated an effect on iron overload conditions and also in contrasting cancer cell proliferation. OBJECTIVE We analyzed the effects of deferasirox and eltrombopag in human osteosarcoma cells in an attempt to identify other therapeutic approaches for this tumor. METHODS We cultured and treated with deferasirox and Eltrombopag, alone and in combination, two human osteosarcoma cell lines, MG63 and 143B. After 72h exposure, we performed RTqPCR, Western Blotting, Iron Assay and cytofluorimetric assays to evaluate the effect on viability, apoptosis, cell cycle progression and ROS production. RESULTS The iron-chelating properties of the two compounds are also confirmed in osteosarcoma, but we did not observe any direct effect on tumor progression. DISCUSSION We tested deferasirox and eltrombopag, alone and in combination, in human osteosarcoma cells for the first time and demonstrated that their iron-chelating activity does not influence biochemical pathways related to cancer progression and maintenance. CONCLUSION Although further investigations on possible effects mediated by cells of the tumor microenvironment could be of great interest, in vitro iron chelation in osteosarcoma does not impair tumor progression.
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Affiliation(s)
- Maura Argenziano
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Alessandra Di Paola
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Chiara Tortora
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Daniela Di Pinto
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Elvira Pota
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Martina Di Martino
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Silverio Perrotta
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Francesca Rossi
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Francesca Punzo
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
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Vahabi Barzi N, Eftekhari Z, Doroud D, Eidi A. Maternal exposure during organogenesis to chlorpyrifos insecticide induce apoptosis process. J Matern Fetal Neonatal Med 2020; 35:3845-3852. [PMID: 33349080 DOI: 10.1080/14767058.2020.1841161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Nowadays, one of the issues that matter in infertility is abortion or teratogenicity of embryos, followed by environmental pollution. Additionally, the continuous use of pesticides as the requirements of modern agriculture can increase the number of released radicals, which ultimately affects cell membranes and cell death via apoptosis pathway. MATERIALS AND METHODS NMRI mice were divided into 3 groups: (1) Chlorpyrifos received group, (2) DMSO received as the sham group, (3) Control group. The mice were mated and euthanized 10 days post gestation. The number of embryos, progesterone and estradiol hormones and the liver enzymes levels of mouse mothers were evaluated in each group. The apoptosis pathway genes (Bax and Bcl2) and protein expressions (Caspase3 and Caspase9) were evaluated in the embryos of each group by qPCR and immunohistochemistry staining, respectively. RESULTS The number of embryos in the experimental group was significantly lower than from the other groups. The liver enzymes and hormone levels were higher in CPF induced mice in comparison to the others. The mRNA expression of Bax in the embryos was significantly higher in the CPF group compared to sham and control groups. Caspase3 and Caspase9 protein expression revealed a higher rate of apoptosis in CPF group embryos. CONCLUSIONS Continuous use of Chlorpyrifos can be regarded as having a negative effect on pregnancy as well as raising the mechanism of apoptosis in the development of embryos that may contribute to abortion or the birth of teratogenic disorders embryos.
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Affiliation(s)
- Nastaran Vahabi Barzi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zohre Eftekhari
- Quality Control Department, Pasteur Institute of Iran, Alborz, Iran
| | - Delaram Doroud
- Quality Control Department, Pasteur Institute of Iran, Alborz, Iran
| | - Akram Eidi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Similar Repair Effects of Human Placenta, Bone Marrow Mesenchymal Stem Cells, and Their Exosomes for Damaged SVOG Ovarian Granulosa Cells. Stem Cells Int 2020; 2020:8861557. [PMID: 33376492 PMCID: PMC7738794 DOI: 10.1155/2020/8861557] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 11/07/2020] [Accepted: 11/18/2020] [Indexed: 12/30/2022] Open
Abstract
Background This study is aimed at investigating the repairing effect of mesenchymal stem cells and their exosomes from different sources on ovarian granulosa cells damaged by chemotherapy drugs—phosphoramide mustard (PM). Methods In this study, we choose bone marrow mesenchymal stem cells (BMSCs) and human placental mesenchymal stem cells (HPMSCs) for research. Then, they were cocultured with human ovarian granulosa cells (SVOG) injured by phosphoramide mustard (PM), respectively. β-Galactosidase staining, flow cytometry, and Western blot were used to detect the changes in the senescence and apoptosis of SVOG cells before and after their coculture with the above two types of MSCs. Subsequently, exosomes from these two types of MSCs were extracted and added to the culture medium of SVOG cells after PM injury to test whether these two types of exosomes played a role similar to that of MSCs in repairing damaged SVOG cells. Results PM treatment-induced apoptotic SVOG cells were significantly decreased after HPMSCs and BMSCs as compared with control group. After coculturing with these two types of MSCs, PM-treated SVOG cells showed significantly reduced senescence and apoptosis proportions as well as cleaved-Caspase 3 expression, and HPMSCs played a slightly stronger role than BMSCs in repairing SVOG cells in terms of the above three indicators. In addition, the ratios of senescent and apoptotic SVOG cells were also significantly reduced by the two types of exosomes, which played a role similar to that of MSCs in repairing cell damages. Conclusions The results indicated that BMSCs, HPMSCs, and their exosomes all exerted a certain repair effect on SVOG cells damaged by PM, and consistent repair effect was observed between exosomes and MSCs. The repair effect of exosomes secreted from BMSCs and HPMSCs on the SVOG cells was studied for the first time, and the results fully demonstrated that exosomes are the key carriers for MSCs to play their role.
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Abstract
This study aimed to study the effect and mechanism of action of SO2-induced oxidation on human skin keratinocytes.Different concentrations of SO2 derivatives (0, 25, 50, 100, 200, 400, and 800 μM) were used for treating HaCaT keratinocytes for 24 hours. MTT was used to evaluate the effect of each concentration on cell proliferation. HaCaT cells were randomly divided into control and SO2 groups. The control group received no treatment, whereas the SO2 group was treated with SO2 derivatives of selected concentrations for 24 hours. The levels of reactive oxygen species (ROS), malondialdehyde (MDA), and superoxide dismutase (SOD), tumor necrosis factor TNF-α (TNF-α), and interleukin-1 (IL-1-β) in cell supernatants were detected using enzyme-linked immunosorbent assay. Real-time polymerase chain reaction was used to detect the expression of nuclear transcription factor (Nrf2) and heme oxygenase (HO)-1 mRNA. The Western blot analysis was used to test the expression levels of Nrf2, HO-1, activated caspase-3, Bcl-2, Bax, IκB, NF-κB p65 (p65), ERK1/2, p38, phospho-NF-κB p65 (p-p65), p-ERK1/2, and p-p38.SO2 derivatives (100, 200, 400, and 800 μM) could inhibit cell proliferation. SO2 derivatives increased the level of ROS, MDA, TNF-α, IL-1β, Nrf2, HO-1, and p-p65/p65 and decreased the levels of SOD, IκB, p-ERK1/2/ERK1/2, and p-p38/p38 compared with the control group, but they had no effect on the levels of caspase-3, Bcl-2, and Bax.SO2 could inhibit the proliferation of human skin keratinocytes and induce oxidative stress and inflammation via the activation of the NF-κB pathway to inhibit the ERK1/2 and p38 pathways.
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Affiliation(s)
- Junqin Liang
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang
| | - Lina Liu
- Departmental of medical research, Naval Medical Center of PLA, Shanghai, China
| | - Xiaojing Kang
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang
| | - Fengxia Hu
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang
| | - Lidan Mao
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang
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Zhang J, Zhang J, Lin Q, Chen L, Song Y. IL-17 promotes proliferation, inflammation and inhibits apoptosis of HaCaT cells via interacting with the TRAF3 interacting protein 2. Exp Ther Med 2020; 21:49. [PMID: 33273977 PMCID: PMC7706409 DOI: 10.3892/etm.2020.9480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 09/18/2020] [Indexed: 01/25/2023] Open
Abstract
The present study aimed to investigate the effects of interleukin-17 (IL-17) on the function of keratinocytes and to further investigate its associated mechanism. Human immortalized epidermal cells (HaCaT) were divided into sham control group (Sham), TRAF3 interacting protein 2 (TRAF3IP2)-knockdown with lentivirus group (si-TRAF3IP2), sham control+IL-17 group (Sham+IL-17) and TRAF3IP2-knockdown with lentivirus+IL-17 group (si-TRAF3IP2+IL-17). MTT and flow cytometry assays demonstrated that IL-17 promoted proliferation and inhibited apoptosis of HaCaT cells, while this effect was reversed following knockdown of TRAF3IP2 with lentiviral vectors. In addition, a marked increase in the levels of IL-6, IL-8, IL-23, TNF-α and VEGF was observed in the Sham+IL-17 group compared with that noted in the Sham group (P<0.05). Furthermore, reverse transcription-quantitative polymerase chain reaction and western blotting indicated that the mRNA and protein expression levels of caspase-3 in the si-TRAF3IP2+IL-17 group were significantly increased compared with those of the Sham+IL-17 group (P<0.05). Taken together, the results indicated that IL-17 promoted proliferation and inflammation and inhibited apoptosis of HaCaT cells by interacting with the TRAF3IP2 adaptor protein, while knockdown of the expression of TRAF3IP2 reduced the effects of IL-17 in HaCaT cells.
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Affiliation(s)
- Jie Zhang
- Department of Dermatology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Junbin Zhang
- Department of Dermatology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
| | - Qingxia Lin
- Department of Dermatology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261000, P.R. China
| | - Lamei Chen
- Department of Dermatology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Yali Song
- Department of Dermatology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
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Martinez-Oliveira P, Zuravski L, de Oliveira MF, Ströher DJ, Coelho RP, Pilar BC, de Oliveira LFS, Piccoli JDCE, Machado MM, Denardin CC, Manfredini V. Evaluation In Vitro of Toxicity of Hydroalcoholic Extract of Leaves and Roots from Yacon ( Smallanthus sonchifolius). J Med Food 2020; 24:660-665. [PMID: 33179973 DOI: 10.1089/jmf.2020.0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Yacon is an Andean plant that has been used in folk medicine for its medicinal properties. The beneficial effects of this plant are possibly due to the high content of phenolic compounds present in its leaves and roots. This study evaluated the in vitro toxicity of the hydroalcoholic extract of leaves and roots from yacon (1, 10, 50, and 100 μg/mL) through cell viability tests, genotoxic and mutagenic activity in leukocytes culture cells; and cytotoxicity and apoptosis cell death (1, 10, 50, 100, and 500 μg/mL) in cell line originally established from the primary mouse embryonic fibroblast cells that were cultured by the designated protocol, so-called 3T3 protocol "3-day transfer, inoculum 3 × 105 cells" (3T3 cell line). No mutagenic and cytotoxic activities were observed in leukocyte cultures. Cytotoxic activity was evidenced in the highest concentrations of yacon leaf extract (50 and 100 μg/mL), whereas all concentrations tested with yacon leaf extract there was induction for apoptosis in the 3T3 cells. Genotoxic potential was observed only at higher doses of leaf (50 and 100 μg/mL) and root (100 μg/mL) extract. These results suggest that yacon leaf at high concentrations may present toxic potential showing concentration-dependent behavior; however, in vivo studies should be performed to validate these results.
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Affiliation(s)
- Patrícia Martinez-Oliveira
- Postgraduate Program in Biochemistry, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
| | - Luísa Zuravski
- Postgraduate Program in Biochemistry, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
| | | | - Deise Jaqueline Ströher
- Postgraduate Program in Biochemistry, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
| | - Ritiéle Pinto Coelho
- Postgraduate Program in Biochemistry, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
| | - Bruna Cocco Pilar
- Postgraduate Program in Biochemistry, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
| | - Luís Flávio Souza de Oliveira
- Course of Pharmacy, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
| | - Jacqueline da Costa Escobar Piccoli
- Course of Pharmacy, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
| | - Michel Mansur Machado
- Course of Pharmacy, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
| | | | - Vanusa Manfredini
- Postgraduate Program in Biochemistry, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
- Course of Pharmacy, Federal University of Pampa, Uruguaiana, Rio Grande do Sul, Brazil
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Zhou F, Liu F, Liu J, He YL, Zhou QM, Guo L, Peng C, Xiong L. Stachydrine promotes angiogenesis by regulating the VEGFR2/MEK/ERK and mitochondrial-mediated apoptosis signaling pathways in human umbilical vein endothelial cells. Biomed Pharmacother 2020; 131:110724. [DOI: 10.1016/j.biopha.2020.110724] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/28/2020] [Accepted: 09/02/2020] [Indexed: 12/14/2022] Open
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Jiang M, Qi L, Li L, Li Y. The caspase-3/GSDME signal pathway as a switch between apoptosis and pyroptosis in cancer. Cell Death Discov 2020; 6:112. [PMID: 33133646 PMCID: PMC7595122 DOI: 10.1038/s41420-020-00349-0] [Citation(s) in RCA: 269] [Impact Index Per Article: 67.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/09/2020] [Accepted: 10/14/2020] [Indexed: 12/18/2022] Open
Abstract
Apoptosis has long been recognized as a mechanism that kills the cancer cells by cytotoxic drugs. In recent years, studies have proved that pyroptosis can also shrink tumors and inhibit cells proliferation. Both apoptosis and pyroptosis are caspase-dependent programmed cell death pathways. Cysteinyl aspartate specific proteinase-3 (Caspase-3) is a common key protein in the apoptosis and pyroptosis pathways, and when activated, the expression level of tumor suppressor gene Gasdermin E (GSDME) determines the mechanism of tumor cell death. When GSDME is highly expressed, the active caspase-3 cuts it and releases the N-terminal domain to punch holes in the cell membrane, resulting in cell swelling, rupture, and death. When the expression of GSDME is low, it will lead to the classical mechanism of tumor cell death, which is apoptosis. More interestingly, researchers have found that GSDME can also be located upstream of caspase-3, connecting extrinsic, and intrinsic apoptotic pathways. Then, promoting caspase-3 activation, and forming a self-amplifying feed-forward loop. GSDME-mediated pyroptosis is correlated with the side effects of chemotherapy and anti-tumor immunity. This article mainly reviews the caspase-3/GSDME signal pathway as a switch between apoptosis and pyroptosis in cancer, to provide new strategies and targets for cancer treatment.
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Affiliation(s)
- Mingxia Jiang
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, 150 Haping St, Nangang District, Harbin, Heilongjiang 150081 P. R. China
| | - Ling Qi
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, 150 Haping St, Nangang District, Harbin, Heilongjiang 150081 P. R. China
| | - Lisha Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, 150 Haping St, Nangang District, Harbin, Heilongjiang 150081 P. R. China
| | - Yanjing Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, 150 Haping St, Nangang District, Harbin, Heilongjiang 150081 P. R. China
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Zhang Y, Huang Y, Yin Y, Fan Y, Sun W, Zhao X, Tucker K, Staley A, Paraghamian S, Hawkins G, Prabhu V, Allen JE, Zhou C, Bae-Jump V. ONC206, an Imipridone Derivative, Induces Cell Death Through Activation of the Integrated Stress Response in Serous Endometrial Cancer In Vitro. Front Oncol 2020; 10:577141. [PMID: 33194693 PMCID: PMC7641618 DOI: 10.3389/fonc.2020.577141] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 09/29/2020] [Indexed: 12/28/2022] Open
Abstract
ONC206 (Oncoceutics) is an imipiridone with nanomolar potency and analogue of ONC201, a selective dopamine receptor D2 (DRD2) antagonist currently being investigated in phase II clinical trials for serous endometrial cancer (SEC). This study investigated the anti-proliferative efficacy of ONC206 in SEC cell lines as well as its impact on cellular stress and adhesion/invasion. ONC206 inhibited cellular proliferation in a dose-dependent manner and was more potent than ONC201 in the ARK1 (IC50 = 0.33µM vs. IC50 = 1.59uM) and SPEC-2 (IC50 = 0.24uM vs. IC50 = 0.81uM) cell lines. Treatment with ONC206 resulted in induction of ROS production and reduction of mitochondrial membrane potential, accompanied by an increase in cleaved caspase-3 and caspase-9 activity (p < 0.01). ONC206 also significantly inhibited cellular adhesion and migration in both cell lines (p < 0.01). Pretreatment with the stress inhibitor N-acetylcysteine (NAC) significantly attenuated the efficacy of ONC206 on cell proliferation, ROS production and cellular invasion. ONC206 demonstrates nanomolar potency for the inhibition of proliferation in SEC cells. Specifically, ONC206 utilizes ISR activation as a significant pathway in the propagation of its anti-proliferative and anti-metastatic effects. Thus, ONC206 may be a promising agent in future SEC clinical trials as was its predecessor ONC201.
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Affiliation(s)
- Yingao Zhang
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,University of North Carolina School of Medicine, Chapel Hill, NC, United States
| | - Yu Huang
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Department of Gynecologic Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Yajie Yin
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Yali Fan
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Wenchuan Sun
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Xiaoling Zhao
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Katherine Tucker
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Allison Staley
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Sarah Paraghamian
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Gabrielle Hawkins
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | | | | | - Chunxiao Zhou
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Victoria Bae-Jump
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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Cavdar Z, Oktan MA, Ural C, Kocak A, Calisir M, Heybeli C, Yildiz S, Ozbal S, Arslan S, Ergur BU, Yilmaz O, Cavdar C. Alpha lipoic acid attenuates iron induced oxidative acute kidney injury in rats. Biotech Histochem 2020; 96:409-417. [PMID: 32921159 DOI: 10.1080/10520295.2020.1812001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Iron has been implicated in oxidative tissue injury owing to its ability to generate reactive oxygen species (ROS). We investigated the reno-protective effects of alpha lipoic acid (ALA) by investigating its effects on the kidney isoform of NADPH oxidase (Nox4) and the specific signaling pathways, p38 MAPK and PI3K/Akt, which participate in apoptosis and survival, respectively. We established four groups of seven rats: control, 100 mg/kg ALA, 80 mg/kg iron sucrose (IS) and IS + ALA. IS and ALA were injected intravenously and rats were sacrificied after 6 h. The mRNA expression of the subunits of NADPH oxidase, Nox4 and p22phox; tumor necrosis factor-alpha (TNF-α); and kidney injury molecule-1 (KIM-1) were measured using quantitative real time polymerase chain reaction (qRT-PCR). Active caspase-3 protein expression was evaluated by immunostaining. Also, p38 MAPK and PI3K/Akt signaling pathways were analyzed using western blot. ALA suppressed the mRNA expression of Nox4, p22phox, TNF-α and KIM-1. Active caspase-3 protein expression induced by IS was decreased by ALA. ALA also suppressed p38 MAPK and activated the PI3K/Akt signaling pathway following IS administration. We found that ALA may be an effective strategy for preventing oxidative acute kidney injury caused by IS.
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Affiliation(s)
- Zahide Cavdar
- Department of Molecular Medicine, Health Sciences Institute, Dokuz Eylul University, Izmir, Turkey
| | - Mehmet Asi Oktan
- Department of Nephrology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Cemre Ural
- Department of Molecular Medicine, Health Sciences Institute, Dokuz Eylul University, Izmir, Turkey
| | - Ayse Kocak
- Department of Molecular Medicine, Health Sciences Institute, Dokuz Eylul University, Izmir, Turkey
| | - Meryem Calisir
- Department of Laboratory Animal Science, Health Sciences Institute, Dokuz Eylul University, Izmir, Turkey
| | - Cihan Heybeli
- Department of Nephrology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Serkan Yildiz
- Department of Nephrology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Seda Ozbal
- Department of Histology and Embryology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Sevki Arslan
- Department of Biology, Faculty of Science, Pamukkale University, Denizli, Turkey
| | - Bekir Ugur Ergur
- Department of Histology and Embryology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Osman Yilmaz
- Department of Laboratory Animal Science, Health Sciences Institute, Dokuz Eylul University, Izmir, Turkey
| | - Caner Cavdar
- Department of Nephrology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
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Neuroprotection of Intermedin Against Cerebral Ischemia/Reperfusion Injury Through Cerebral Microcirculation Improvement and Apoptosis Inhibition. J Mol Neurosci 2020; 71:767-777. [PMID: 32910355 DOI: 10.1007/s12031-020-01697-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/01/2020] [Indexed: 01/06/2023]
Abstract
Ischemic stroke is the primary cause of disability and mortality worldwide. Ischemia/reperfusion (I/R)-induced microcirculatory dysfunction and organ injury generally occur after ischemic stroke. Several studies have shown that intermedin (IMD) has a regulating function on cerebral microcirculation and blood-brain barrier via relaxing cerebral vessels and improving the local blood supply after cerebral ischemia. However, a unified conclusion has not been reached, and the underlying mechanism remains unclear. To observe and analyze the changes of cerebral microcirculation perfusion of cerebral IRI by IMD post-treatment in the rats and further explore the mechanism underlying the beneficial effect of IMD on cerebral IRI. Thirty-nine rats were divided into three groups: sham, I/R, and I/R + IMD groups. After IMD ischemia post-treatment, the rat cerebral infarction rate and the degree of neurological deficit were evaluated by TTC staining and neurological function score; the changes in the amount of cerebral microcirculation implantation on the injured side of the rats were observed by laser Doppler; the pathological changes and cell ultrastructure of rat cortex and hippocampus were observed by HE staining and transmission electron microscopy; the neuron apoptosis in the rat cortex and hippocampus was detected by TUNEL staining and immunohistochemical staining. Impaired neurological function, abnormal cortical/hippocampal neuron morphology, and the proportion of cerebral infarction were significantly improved in the IMD group compared with the I/R group, which suggested a possible neuroprotective role of IMD. IMD treatment also increased the average perfusion of cerebral surface microcirculation in rats by astonished 42.7 times. Finally, IMD administration decreased the caspase-3- and Bax-positive cell numbers and apoptotic cell ratio. IMD has a significant protective effect on neuronal damage caused by cerebral I/R in rats by improving cerebral microcirculation and inhibiting apoptosis.
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Cichoric acid from extracted Echinacea purpurea induces the proliferation and apoptosis of peripheral blood mononuclear cells from yaks. ELECTRON J BIOTECHN 2020. [DOI: 10.1016/j.ejbt.2020.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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Tang X, Tao F, Xiang W, Zhao Y, Jin L, Tao H. Anticancer effects and the mechanism underlying 2-methoxyestradiol in human osteosarcoma in vitro and in vivo. Oncol Lett 2020; 20:64. [PMID: 32863897 PMCID: PMC7436181 DOI: 10.3892/ol.2020.11925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 06/22/2020] [Indexed: 12/05/2022] Open
Abstract
Osteosarcoma (OS) occurs in both children and adolescents and leads to a poor prognosis. 2-methoxyestradiol (2-ME) has a strong antitumor effect and is effective against numerous types of tumor. However, 2-ME has a low level of antitumor effects in OS. The present study investigated the effects of 2-ME on the proliferation and apoptosis of human MG63 OS cells. The potential biological mechanisms by which 2-ME exerts its biological effects were also investigated in the present study. The results of the present study demonstrated that 2-ME inhibited the proliferation of OS cells in a time- and dose-dependent manner, induced G2/M phase cell cycle arrest and early apoptosis. The expression levels of vascular endothelial growth factor (VEGF), Bcl-2 and caspase-3 were measured via western blotting and reverse transcription-quantitative PCR. As the concentration of 2-ME increased, the RNA and protein expression levels of VEGF and Bcl-2 decreased gradually, whereas the expression of caspase-3 increased gradually. In addition, tumor growth in nude mice was suppressed by 2-ME with no toxic side effects observed in the liver or kidney. Immunohistochemistry demonstrated that the expression levels of Bcl-2 and VEGF were significantly lower, and those of caspase-3 were significantly higher in test mice compared with the control group. TUNEL staining of xenograft tumors revealed that with increased 2-ME concentration, the number of apoptotic cells also gradually increased. Thus, 2-ME effectively inhibited the proliferation and induced apoptosis of MG63 OS cells in vitro and in vivo with no obvious side effects. The mechanism of the anticancer effect of 2-ME may be associated with the actions of Bcl-2, VEGF and caspase-3.
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Affiliation(s)
- Xiaoyan Tang
- General Department, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Fenghua Tao
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Wei Xiang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Yingchun Zhao
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Lin Jin
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hai Tao
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Ma Y, Song Y, Shen R, Li P, Ding H, Guo Z, Liu X, Wang D. Loss of RAD6B induces degeneration of the cochlea in mice. Biochem Biophys Res Commun 2020; 531:402-408. [PMID: 32868078 DOI: 10.1016/j.bbrc.2020.08.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 08/08/2020] [Indexed: 01/11/2023]
Abstract
Presbycusis is a form of age-related hearing loss (AHL). Many studies have shown that the degeneration of various structures in the cochlea of the inner ear is related to AHL, and DNA damage is an important factor leading to the above process. As an E2 ubiquitin-conjugated enzyme, RAD6B plays an important role in DNA damage repair (DDR) through histone ubiquitination. However, the molecular mechanism is still unclear. In this study, we investigated the role of RAD6B in the morphological changes and DDR mechanisms in aging-related degeneration of the cochlea of mice. We observed that the hair cells, stria vascularis and spiral ganglion in the cochlea of the RAD6B knockout mice showed significant degenerative changes and abnormal expression of proteins associated with DDR mechanisms compared with those of the littermate wild-type mice. In conclusion, our results suggest that the deletion of RAD6B may lead to abnormalities in DDR, thereby accelerating the degeneration of various structures in the cochlea and senescence and apoptosis of cochlea cells.
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Affiliation(s)
- Yangping Ma
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Yanfeng Song
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Rong Shen
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Panpan Li
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Han Ding
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Zhao Guo
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Xiangwen Liu
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Degui Wang
- Department of Anatomy and Histology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.
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Bu H, Liu D, Zhang G, Chen L, Song Z. AMPK/mTOR/ULK1 Axis-Mediated Pathway Participates in Apoptosis and Autophagy Induction by Oridonin in Colon Cancer DLD-1 Cells. Onco Targets Ther 2020; 13:8533-8545. [PMID: 32904616 PMCID: PMC7457577 DOI: 10.2147/ott.s262022] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Oridonin has been demonstrated to exert strong antitumor activities in various types of human cancers. Our previous study established that oridonin induced the apoptosis of and exerted an inhibitory effect on colon cancer cells in vitro and in vivo. However, the mechanisms behind the antitumor effects of oridonin on colorectal cancer are not clearly known. This study explored whether autophagy was involved in antitumorigenesis effects caused by the usage of oridonin in colon cancer and examined whether the AMPK/mTOR/ULK1 signaling pathway was involved in this process. METHODS Cell viability was determined using CCK-8 assay. The distribution of cell apoptosis was evaluated using flow cytometry. RT-PCR and Western blotting analysis were conducted to identify the key target genes and proteins involved in the AMPK/mTOR cascade. AMPK siRNA was used to disturb AMPK expression. A DLD-1 cell orthotopic transplantation tumor model was established to explore the anti-cancer effects in vivo. RESULTS Oridonin exhibited a suppressive effect on DLD-1 cells in a concentration- and time-dependent manner. Additionally, in a dose-dependent manner, oridonin induced cell apoptosis via inducing the protein expression levels of cleaved caspase-3, cleaved PARP and stimulated autophagy by increasing protein expression levels of Becin1, LC3-II, decreasing protein expression levels of LC3-I, p62, which were respectively attenuated and elevated by autophagy inhibitor 3-MA. Furthermore, oridonin upregulated the expression level of p-AMPK and downregulated the expression levels of p-mTOR, p-ULK1 in the DLD-1 cells in a dose-dependent manner. Moreover, knockdown of AMPK by a specific siRNA reversed the expression levels of proteins involved in the AMPK/mTOR pathway, autophagy and apoptosis. In addition, outcomes from the in vivo experiments also showed that oridonin treatment significantly repressed tumorigenic growth of DLD-1 cells without any side effects, which was accompanied by the upregulation of p-AMPK, LC3-II, active caspase-3 protein expression levels and the downregulation of p-mTOR and p-ULK1 protein expression levels. CONCLUSION This study demonstrated that oridonin induced apoptosis and autophagy of colon cancer DLD-1 cells via regulating the AMPK/mTOR/ULK1 pathway, which indicated that oridonin may be used as a novel therapeutic intervention for patients with colorectal cancer.
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Affiliation(s)
- Heqi Bu
- Department of Colorectal Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou310016, People’s Republic of China
- Department of Coloproctology Surgery, Tongde Hospital of Zhejiang Province, Hangzhou310012, People’s Republic of China
| | - Dianlei Liu
- Department of Surgery, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou310006, People’s Republic of China
| | - Guolin Zhang
- Department of Colorectal Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou310016, People’s Republic of China
| | - Li Chen
- Department of Colorectal Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou310016, People’s Republic of China
| | - Zhangfa Song
- Department of Colorectal Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou310016, People’s Republic of China
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Wang W, Wang M, Xu J, Long F, Zhan X. Overexpressed GATA3 enhances the sensitivity of colorectal cancer cells to oxaliplatin through regulating MiR-29b. Cancer Cell Int 2020; 20:339. [PMID: 32760217 PMCID: PMC7379773 DOI: 10.1186/s12935-020-01424-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/14/2020] [Indexed: 12/31/2022] Open
Abstract
Background GATA binding protein 3 (GATA3) and miR-29b are related to colorectal cancer (CRC). The current study explored the regulatory relationship between GATA3 and miR-29b, and the mechanism of the two in the drug resistance of CRC cells to oxaliplatin. Method Apoptosis of CRC cells induced by oxaliplatin at various doses was detected by flow cytometry. CRC cells were separately transfected with overexpression and knockdown of GATA3, miR-29b agomir and antagomir, and treated by oxaliplatin to detect the cell viability and apoptosis by performing Cell Couting Kit-8 (CCK-8) and flow cytometry. The expression levels of GATA3, caspase3 and cleaved caspase3 were determined by Western blot, and the expression of miR-29b was detected by quantitative real-time polymerase chain reaction (qRT-PCR). Animal experiments were performed to examine the changes of transplanted tumors in nude mouse xenograft studies and observed by in vivo imaging. TUNEL staining was performed to detect tumor cell apoptosis. Result Both GATA3 and miR-29b agomir inhibited the activity of the CRC cells, promoted apoptosis and Cleaved caspase3 expression, and reduced the resistance of the cells to chemotherapy drug oxaliplatin. Although GATA3 could up-regulate miR-29b expression, the tumor-suppressive effect of GATA3 was partially reversed by miR-29b antagomir. In vivo experiments showed that down-regulating the expression of GATA3 promoted the growth rate and volume of transplanted tumors, while overexpressing GATA3 had no significant effect on tumor growth. TUNEL staining results showed that knocking down or overexpression of GATA3 did not cause significant changes to apoptotic bodies of CRC cells, while oxaliplatin treatment increased the number of apoptotic bodies. Conclusion GATA3 inhibits the cell viability of CRC cells, promotes apoptosis, and reduces oxaliplatin resistance of CRC cells through regulating miR-29b.
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Affiliation(s)
- Wei Wang
- Department of Oncology, Changhai Hospital of Shanghai, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433 China
| | - Mei Wang
- Department of Oncology, North Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Xu
- Department of Oncology, Changhai Hospital of Shanghai, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433 China
| | - Fei Long
- Department of Oncology, Changhai Hospital of Shanghai, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433 China
| | - Xianbao Zhan
- Department of Oncology, Changhai Hospital of Shanghai, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433 China
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Wang H, Zhang K, Ruan Z, Sun D, Zhang H, Lin G, Hu L, Zhao S, Fu Q. Probucol enhances the therapeutic efficiency of mesenchymal stem cells in the treatment of erectile dysfunction in diabetic rats by prolonging their survival time via Nrf2 pathway. Stem Cell Res Ther 2020; 11:302. [PMID: 32693824 PMCID: PMC7374958 DOI: 10.1186/s13287-020-01788-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/09/2020] [Accepted: 06/23/2020] [Indexed: 04/12/2023] Open
Abstract
BACKGROUND Intracavernous injection of mesenchymal stem cells (MSCs) is a promising method for diabetic mellitus-induced erectile dysfunction (DMED), but short survival time of MSCs in cavernous is a fatal defect for therapy. This study investigated therapeutic efficiency and potential mechanism of probucol combined with MSCs. METHODS In vivo study, a total of forty-eight 10-week-old male Sprague-Dawley (SD) rats were used. Twelve rats received intraperitoneal injection of PBS as the sham group; the rest received intraperitoneal injection of 60 mg/kg streptozotocin to establish DM models. DM rats were randomly divided into three groups: received intracavernosal (IC) injection of either PBS (DM group), MSCs (M group), or administrated probucol after intracavernosal injection of MSCs (P + M group). Erectile function was assessed by electrical stimulation of the cavernous nerves with real-time intracavernous pressure measurement. After euthanasia, penile tissue was investigated for histologic examination and Western blotting. In in vitro experiment, H2O2 was used to create oxidative stress environment to detect changes in cell viability. CCK8 was used to measure cell viability of MSCs treated with or without probucol. Intracellular ROS changes were detected by flow cytometry. Autophagy and apoptosis were detected by Western blotting and confocal microscopy. RESULTS Recovery of erectile function was observed in the P + M group. The combination therapy decreased fibrosis and increased endothelial function compared with MSC therapy alone. Western blotting results confirmed the increased expression of Nrf2 and HO-1 in cavernous body. H2O2 induced high oxidative stress and reduced cell viability in vitro, which was gradually reversed with increased concentration of probucol. H2O2 reduced Nrf2 expression, which was reversed by probucol's intervention. Furthermore, the expression of Bax, Caspase3, and Cleaved-Caspase3 decreased, and the expression of Bcl-2 increased in a dose-dependent manner because of probucol's intervention. In addition, Beclin1 and LC3II both increased in a dose-dependent manner. Meanwhile, the expression of P62 decreased. In the study of autophagy flux, we found probucol did not block it. CONCLUSION Probucol enhanced therapeutic efficiency of MSCs in DMED by prolonging their survival time, which mediated through improving the transplanted microenvironment of MSCs, increasing self-antioxidant ability of MSCs, strengthening protective autophagy, and inhibiting apoptosis of MSCs via Nrf2 pathway. Schematic model showing combined probucol and MSCs to improve DMED. Probucol increases self-antioxidant ability of MSCs, strengthening protective autophagy and inhibiting apoptosis via Nrf2/HO-1 and Nrf2/autophagy pathways.
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Affiliation(s)
- Haoran Wang
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
| | - Keqin Zhang
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China
| | - Zheng Ruan
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
- Tai'an City Central Hospital, Tai'an, 271000, People's Republic of China
| | - Dingqi Sun
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China
| | - Hui Zhang
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China
| | - Guiting Lin
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, CA, USA
| | - Liangliang Hu
- Department of Urology, Shandong Zaozhuang Municipal Hospital, Zaozhuang, 277000, People's Republic of China
| | - Shengtian Zhao
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China.
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China.
| | - Qiang Fu
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi Road 324#, Jinan, 250021, Shandong, People's Republic of China.
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, People's Republic of China.
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Paeonol inhibits proliferation and induces cell apoptosis of human T24 and 5637 bladder cancer cells in vitro and in vivo. Clin Transl Oncol 2020; 23:601-611. [DOI: 10.1007/s12094-020-02455-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 07/09/2020] [Indexed: 12/19/2022]
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Zhao L, Chen T, Tang X, Li S, Liang R, Wang Y. Medulloblastoma malignant biological behaviors are associated with HOTAIR/miR-483-3p/CDK4 axis. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:886. [PMID: 32793730 PMCID: PMC7396793 DOI: 10.21037/atm-20-5006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 07/10/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND Medulloblastoma is the most common malignant brain tumor in children. Although the 5-year survival rate is high, patients with relapsed medulloblastoma have a guarded prognosis. HOX transcript antisense RNA (HOTAIR) has been proved to be related to the metastasis of various tumors. Therefore, the molecular mechanism of HOTAIR in medulloblastoma cells was investigated in this study. METHODS HOTAIR was stably silenced in medulloblastoma cells (Daoy and D341). Cell proliferation and apoptosis were detected by 5'-Bromo-2'-deoxyuridine (BrdU) staining, Hoechst 33342 staining, immunohistochemical (IHC), Terminal-deoxynucleotidyl transferase-mediated nick end labeling (TUNEL) and flow cytometry, respectively. The targeted relationship between HOTAIR/Cyclin-dependent kinase 4 (CDK4) and miR-483-3p were predicted by bioinformatics and confirmed by luciferase reporter assay. Balb/C nude mice were inoculated with shRNA-HOTAIR transfected Daoy cells. RESULTS We found that the down-regulation of HOTAIR inhibited proliferation and induced apoptosis. Sh-RNA-HOTAIR also inhibited the expression of CKD4. The CDK4 dependent increase of cell proliferation and decrease of cell apoptosis were reversed by shRNA-HOTAIR. Finally, a xenograft model of medulloblastoma in nude mice was built, and the effect of shRNA-HOTAIR on the growth of tumors was analyzed by RT-PCR, immunofluorescence staining, and TUNEL staining. The data suggested interference of HOTAIR inhibited the growth, tumor weight, cell proliferation, and promoted cell apoptosis. CONCLUSIONS Our study altogether demonstrated HOTAIR influence cell proliferation and apoptosis by regulation of miR-483-3p and CDK4 in medulloblastoma cells. HOTAIR can be used as a candidate for potential applications in the treatment of medulloblastoma.
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Affiliation(s)
- Long Zhao
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Tao Chen
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Department of Neurosurgery, Guangyuan Central Hospital, Guangyuan, China
| | - Xiaoping Tang
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Shun Li
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Ruofei Liang
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yuanchuan Wang
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
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Tsai CC, Chen YJ, Yu HR, Huang LT, Tain YL, Lin IC, Sheen JM, Wang PW, Tiao MM. Long term N-acetylcysteine administration rescues liver steatosis via endoplasmic reticulum stress with unfolded protein response in mice. Lipids Health Dis 2020; 19:105. [PMID: 32450865 PMCID: PMC7249367 DOI: 10.1186/s12944-020-01274-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 04/30/2020] [Indexed: 12/16/2022] Open
Abstract
Background Fat accumulation in the liver contributes to the development of non-alcoholic fatty liver disease (NAFLD). N-acetylcysteine (NAC) is an antioxidant, acting both directly and indirectly via upregulation of cellular antioxidants. We examined the mechanisms of liver steatosis after 12 months high fat (HF) diet and tested the ability of NAC to rescue liver steatosis. Methods Seven-week-old C57BL/6 (B6) male mice were administered HF diet for 12 months (HF group). Two other groups received HF diet for 12 months accompanied by NAC for 12 months (HFD + NAC(1–12)) or 6 months (HFD + NAC(1–6)). The control group was fed regular diet for 12 months (CD group). Results Liver steatosis was more pronounced in the HF group than in the CD group after 12 month feeding. NAC intake for 6 or 12 months decreased liver steatosis in comparison with HF diet (p < 0.05). Furthermore, NAC treatment also reduced cellular apoptosis and caspase-3 expression. In the unfolded protein response (UPR) pathway, the expression of ECHS1, HSP60, and HSP70 was decreased in the HFD group (p < 0.05) and rescued by NAC therapy. With regards to the endoplasmic reticulum (ER) stress, Phospho-PERK (p-PERK) and ATF4 expression was decreased in the HF group, and only the HFD + NAC(1–12), but not HFD + NAC(1–6) group, showed significant improvement. Conclusion HF diet for 12 months induces significant liver steatosis via altered ER stress and UPR pathway activity, as well as liver apoptosis. NAC treatment rescues the liver steatosis and apoptosis induced by HF diet.
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Affiliation(s)
- Ching-Chou Tsai
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City, Taiwan.,Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Yu-Jen Chen
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City, Taiwan.,Department of Obstetrics and Gynecology, Chiayi Chang Gung Memorial Hospital, Chiayi County, Taiwan
| | - Hong-Ren Yu
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City, Taiwan
| | - Li-Tung Huang
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City, Taiwan
| | - You-Lin Tain
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City, Taiwan
| | - I-Chun Lin
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City, Taiwan
| | - Jiunn-Ming Sheen
- Department of Pediatrics, Chiayi Chang Gung Memorial Hospital, Chiayi County, Taiwan
| | - Pei-Wen Wang
- Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City, Taiwan
| | - Mao-Meng Tiao
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City, Taiwan.
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Zhang KY, Rui G, Zhang JP, Guo L, An GZ, Lin JJ, He W, Ding GR. Cathodal tDCS exerts neuroprotective effect in rat brain after acute ischemic stroke. BMC Neurosci 2020; 21:21. [PMID: 32397959 PMCID: PMC7216334 DOI: 10.1186/s12868-020-00570-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 04/30/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Transcranial direct current stimulation (tDCS) is a non-invasive brain modulation technique that has been proved to exert beneficial effects in the acute phase of stroke. To explore the underlying mechanism, we investigated the neuroprotective effects of cathodal tDCS on brain injury caused by middle cerebral artery occlusion (MCAO). RESULTS We established the MCAO model and sham MCAO model with an epicranial electrode implanted adult male Sprague-Dawley rats, and then they were randomly divided into four groups (MCAO + tDCS, MCAO + sham tDCS (Sham), Control + tDCS and Control + Sham group). In this study, the severity degree of neurological deficit, the morphology of brain damage, the apoptosis, the level of neuron-specific enolase and inflammatory factors, the activation of glial cells was detected. The results showed that cathodal tDCS significantly improved the level of neurological deficit and the brain morphology, reduced the brain damage area and apoptotic index, and increased the number of Nissl body in MCAO rats, compared with MCAO + Sham group. Meanwhile, the high level of NSE, inflammatory factors, Caspase 3 and Bax/Bcl2 ratio in MCAO rats was reduced by cathodal tDCS. Additionally, cathodal tDCS inhibited the activation of astrocyte and microglia induced by MCAO. No difference was found in two Control groups. CONCLUSION Our results suggested that cathodal tDCS could accelerate the recovery of neurologic deficit and brain damage caused by MCAO. The inhibition of neuroinflammation and apoptosis resulted from cathodal tDCS may be involved in the neuroprotective process.
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Affiliation(s)
- Ke-Ying Zhang
- Department of Radiation Biology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, 169# Chang Le West Road, Xi'an, 710032, China
| | - Gang Rui
- Department of Radiation Biology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, 169# Chang Le West Road, Xi'an, 710032, China
| | - Jun-Ping Zhang
- Department of Radiation Biology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, 169# Chang Le West Road, Xi'an, 710032, China
| | - Ling Guo
- Department of Radiation Biology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, 169# Chang Le West Road, Xi'an, 710032, China
| | - Guang-Zhou An
- Department of Radiation Biology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, 169# Chang Le West Road, Xi'an, 710032, China
| | - Jia-Jin Lin
- Department of Radiation Biology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, 169# Chang Le West Road, Xi'an, 710032, China
| | - Wei He
- Department of Radiation Biology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, 169# Chang Le West Road, Xi'an, 710032, China
| | - Gui-Rong Ding
- Department of Radiation Biology, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, 710032, China. .,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, 169# Chang Le West Road, Xi'an, 710032, China.
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β-elemene suppresses the malignant behavior of esophageal cancer cells by regulating the phosphorylation of AKT. Acta Histochem 2020; 122:151538. [PMID: 32183989 DOI: 10.1016/j.acthis.2020.151538] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/05/2020] [Accepted: 03/08/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Esophageal cancer is a digestive tract malignancy, ranking sixth among the world's deadliest tumor incidence. However, the pathogenesis of esophageal cancer is complex and the prognosis remains poor. Therefore, in-depth study of the pathogenesis and developing effective treatments are of great value for esophageal cancer. β-elemene is a natural monomeric compound derived from the Chinese herbal Curcuma wenyujin. β-elemene has been reported to have anti-tumor effects and used as an adjunct to clinical therapy for multiple cancers. This study aims to explore the effects of β-elemene on esophageal cancer and its related molecular mechanisms. METHODS TE-1 and KYSE-150 cells were used to evaluate the activity of β-elemene on esophageal cancerin vitro and in vivo. Western blot was performed for protein expression assessment. CCK8 assay and cell cycle analysis were used for proliferation testing. Flow cytometry was performed for apoptosis detection. Wound healing assay was subjected to assess the migration ability. Transwell chamber assay was applied to assess the invasion ability. HE staining, TUNEL staining and immunohistochemical staining were used to evaluate the changes in tumor tissues. RESULTS We found that β-elemene treatment suppressed proliferation, as well as induced apoptosis of esophageal cancer cells. In addition, β-elemene inhibited the migration and invasion ability of esophageal cancer cells. Furthermore, β-elemene exerted its effects against esophageal cancer by specifically regulating AKT signaling, thereby controlling the expression of PD-L1. CONCLUSION β-elemene inhibits proliferation and metastasis of esophageal cancer cells by regulating the phosphorylation of AKT.
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Zhao X, Yu Z, Lv Z, Meng L, Xu J, Yuan S, Fu Z. Activation of Alpha-7 Nicotinic Acetylcholine Receptors (α7nAchR) Promotes the Protective Autophagy in LPS-Induced Acute Lung Injury (ALI) In Vitro and In Vivo. Inflammation 2020; 42:2236-2245. [PMID: 31522340 DOI: 10.1007/s10753-019-01088-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The release of inflammatory cytokines and chemokines and autophagy has been reported to be involved in the pathogenic mechanism of acute lung injury (ALI). Reportedly, alpha-7 nicotinic acetylcholine receptors (α7nAchR) might play a protective role in LPS-induced ALI. In the current research, we established LPS-induced ALI model in mice and α7nAchR agonist PNU-282987 improved LPS-induced injury. In MH-S cells, LPS stimulation inhibited, whereas α7nAchR agonist PNU-282987 enhanced the autophagy. α7nAchR agonist PNU-282987 protected MH-S cells from LPS-induced inflammation by reducing the concentrations of IL-6, TNF-α, and IL-1β. Finally, LPS stimulation dramatically inhibited MH-S cell viability but enhanced cell apoptosis, whereas PNU-282987 treatment exerted opposite effects; α7nAchR might regulate the cellular homeostasis via affecting the crosstalk between the autophagy and apoptosis in MH-S cells; in other words, α7nAChR agonist enhances MH-S cell autophagy and inhibits MH-S cell apoptosis. In conclusion, α7nAchR promote the protective autophagy in LPS-induced ALI model in mice and MH-S cells. The application of α7nAchR agonist is considered a potent target for LPS-induced ALI, which needs further clinical investigation.
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Affiliation(s)
- Xin Zhao
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Avenue, Wuhan, Hubei, People's Republic of China.,Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhizhong Yu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Avenue, Wuhan, Hubei, People's Republic of China.,Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zheng Lv
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Avenue, Wuhan, Hubei, People's Republic of China.,Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lei Meng
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Avenue, Wuhan, Hubei, People's Republic of China.,Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiaxin Xu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Avenue, Wuhan, Hubei, People's Republic of China.,Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shiying Yuan
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Avenue, Wuhan, Hubei, People's Republic of China.,Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhaohui Fu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Avenue, Wuhan, Hubei, People's Republic of China. .,Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Golbabaie A, Nouri H, Moghimi H, Khaleghian A. l-asparaginase production and enhancement by Sarocladium strictum: In vitro evaluation of anti-cancerous properties. J Appl Microbiol 2020; 129:356-366. [PMID: 32119169 DOI: 10.1111/jam.14623] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/11/2020] [Accepted: 02/26/2020] [Indexed: 12/12/2022]
Abstract
AIMS Utilization of l-asparaginase has been one of the effective strategies for the treatment of lymphoblastic leukaemia. Since the currently used bacterial l-asparaginase causes side effects, searching for new enzyme sources has been an active field of research. This study focuses on the characterization of an l-asparaginase-producing fungal strain. METHODS AND RESULTS Sarocladium strictum was identified as a potent enzyme-producing strain. For the enhancement of enzyme production, we used two-level factorial design and response surface methodology. The optimization of significant factors showed a 1·84-fold increase in enzyme production. The Km and Vmax values of the enzyme were 9·74 mmol l-1 and 8·19 μmol min-1 . The toxicity of the produced l-asparaginase was measured on K562 and HL60 cancer cell lines and L6 as normal cells. The IC50 values were calculated as 0·4 and 0·5 IU ml-1 for K562 and HL60 respectively and no significant effect was observed in L6. BrdU proliferation and caspase-3 activity assay in l-asparaginase treated HL60 and K562 cells indicated that cell proliferation rates and apoptotic cell death were reduced. CONCLUSIONS The cytotoxic properties of the produced fungal enzyme indicated significant growth inhibition in cancer cells while having a little toxic effect on normal cells. The possibility of mass production alongside having suitable cytotoxic and kinetic properties suggest the probable use of the produced l-asparaginase for further researches as a potential chemotherapeutic agent. SIGNIFICANCE AND IMPACT OF THE STUDY The lack of significant l-glutaminase activity and promising toxicity properties in S. strictum and the closer evolutionary relativeness of fungi enzymes to human enzymes compared to bacterial enzymes suggest a new source with lower toxicity and anti-cancerous properties, causing less side effect problems.
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Affiliation(s)
- A Golbabaie
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - H Nouri
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - H Moghimi
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - A Khaleghian
- Department of Biochemistry, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
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Basic Hallmarks of Urothelial Cancer Unleashed in Primary Uroepithelium by Interference with the Epigenetic Master Regulator ODC1. Sci Rep 2020; 10:3808. [PMID: 32123240 PMCID: PMC7052216 DOI: 10.1038/s41598-020-60796-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 02/14/2020] [Indexed: 01/16/2023] Open
Abstract
Urothelial carcinoma (UC) is a common disease causing significant morbidity and mortality as well as considerable costs for health systems. Extensive aberrant methylation of DNA is broadly documented in early UC, contributing to genetic instability, altered gene expression and tumor progression. However the triggers initiating aberrant methylation are unknown. Recently we discovered that several genes encoding key enzymes of methyl group and polyamine metabolism, including Ornithine Decarboxylase 1 (ODC1), are affected by DNA methylation in early stage UC. In this study, we investigated the hypothesis that these epigenetic alterations act in a feed-forward fashion to promote aberrant DNA methylation in UC. We demonstrate that siRNA-mediated knockdown of ODC1 expression elicits genome-wide LINE-1 demethylation, induction of LINE-1 transcripts and double-strand DNA breaks and decreases viability in primary cultured uroepithelial cells. Similarly, following siRNA-mediated knockdown of ODC1, UC cells undergo double-strand DNA breaks and apoptosis. Collectively, our findings provide evidence that ODC1 gene hypermethylation could be a starting point for the onset of genome-wide epigenetic aberrations in urothelial carcinogenesis. Furthermore, LINE-1 induction enabled by ODC1 interference provides a new experimental model to study mechanisms and consequences of LINE-1 activation in the etiology and progression of UC as well as presumably other cancers.
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138
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Wang L, Guo D, Wang Z, Yin X, Wei H, Hu W, Chen R, Chen C. Zinc oxide nanoparticles induce human tenon fibroblast apoptosis through reactive oxygen species and caspase signaling pathway. Arch Biochem Biophys 2020; 683:108324. [PMID: 32112740 DOI: 10.1016/j.abb.2020.108324] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 01/23/2020] [Accepted: 02/25/2020] [Indexed: 12/27/2022]
Abstract
Glaucoma is the leading cause of irreversible blindness in the world and trabeculectomy remains still the most commonly performed filtration surgery. Failure of trabeculectomy is due to the formation of scarring, which is associated with the increased fibroblast proliferation, activation, and collagen deposition at the site of the drainage channel with subconjunctival fibrosis. Our previous study has revealed that zinc oxide (ZnO) nanoparticles could efficiently decrease the expressions of TGF-β1 and inhibit fibroblast-mediated collagen lattice contraction. However, the mechanism underlying ZnO nanoparticle-induced fibroblast apoptosis is still unclear. In the present study, we investigated the effect of ZnO nanoparticles on the reactive oxygen species (ROS) and mitochondrial membrane potential (Δψm) in human Tenon fibroblasts (HTFs). Moreover, we also explored the influence of ZnO nanoparticles on the expression of Caspase-3, Caspase-9, apoptotic protease-activating factor-1 (Apaf-1), fibroblast-specific protein-1 (FSP-1), collagen III, and E-cadherin. The results indicated that ZnO nanoparticles markedly inhibit HTFs viability and decrease the Δψm in a concentration-dependent pattern. Exposure of HTFs to ZnO nanoparticles could also induce the elevated Caspase-3, Caspase-9, and Apaf-1 expression, decrease the levels of FSP-1, collagen III, and E-cadherin expression, leading to HTFs apoptosis. Our results suggested that elevated ROS and activated Caspase signaling play a fundamental role in ZnO nanoparticle-induced HTFs apoptosis.
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Affiliation(s)
- Ling Wang
- Jining Medical University, Jining, 272000, Shandong Province, China
| | - Dadong Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, 250002, Shandong Province, China
| | - Zhe Wang
- Department of Ophthalmology, Zaozhuang Hospital of Traditional Chinese Medicine, Zaozhuang, 277000, China
| | - Xuewei Yin
- The Second Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, 250002, China
| | - Huixia Wei
- The Second Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, 250002, China
| | - Wanli Hu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, No. 4655#, Daxue Road, Jinan, 250355, China
| | - Ruihong Chen
- Jining Medical University, Jining, 272000, Shandong Province, China
| | - Chao Chen
- Department of Ophthalmology, the First People's Hospital of Jining, Jining, 272002, Shandong Province, China.
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139
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Koca D, Hastar N, Engür S, Kiraz Y, Ulu GT, Çekdemir D, Baran Y. Therapeutic Potentials of Inhibition of Jumonji C Domain-containing Demethylases in Acute Myeloid Leukemia. Turk J Haematol 2020; 37:5-12. [PMID: 31833715 PMCID: PMC7057756 DOI: 10.4274/tjh.galenos.2019.2019.0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objective: Acute myeloid leukemia (AML) is a complex disease affected by both genetic and epigenetic factors. Histone methylation and demethylation are types of epigenetic modification in chromatin remodeling and gene expression. Abnormal expression of histone demethylases is indicated in many types of cancer including AML. Although many commercial drugs are available to treat AML, an absolute cure has not been discovered yet. However, inhibition of demethylases could be a potential cure for AML. Methylstat is a chemical agent that inhibits the Jumonji C domain-containing demethylases. Materials and Methods: The cytotoxic and apoptotic effects of methylstat and doxorubicin on HL-60 cells were detected by MTT cell viability assay, double staining of treated cells with annexin-V/propidium iodide, and caspase-3 activity assay. Mitochondrial activity was analyzed using JC-1 dye. The expression levels of the BCL2 and BCL2L1 anti-apoptotic genes in HL-60 cells were determined using real-time polymerase chain reaction (PCR). Lastly, the cytostatic effect was determined by cell cycle analysis. Results: In our research, cytotoxic, cytostatic, and apoptotic effects of methylstat on human HL-60 cells were investigated. Cytotoxic and cytostatic analyses revealed that methylstat decreased cell proliferation in a dose-dependent cytotoxic manner and arrested HL-60 cells in the G2/M and S phases. Methylstat also induced apoptosis through the loss of mitochondrial membrane potential and increases in caspase-3 enzyme activity. The expression levels of BCL2 and BCL2L1 were also decreased according to real-time PCR results. Finally, the combination of methylstat with doxorubicin resulted in synergistic cytotoxic effects on HL-60 cells. Conclusion: Taken together, these results demonstrate that methylstat may be a powerful candidate as a drug component of AML treatment protocols.
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Affiliation(s)
- Duygu Koca
- İzmir Institute of Technology, Department of Molecular Biology and Genetics, İzmir, Turkey
| | - Nurcan Hastar
- İzmir Institute of Technology, Department of Molecular Biology and Genetics, İzmir, Turkey
| | - Selin Engür
- Anadolu University Faculty of Pharmacy, Department of Pharmacology, Eskişehir, Turkey
| | - Yağmur Kiraz
- İzmir Institute of Technology, Department of Molecular Biology and Genetics, İzmir, Turkey
| | - Gizem Tuğçe Ulu
- İzmir Institute of Technology, Department of Molecular Biology and Genetics, İzmir, Turkey
| | - Demet Çekdemir
- Sakarya University Faculty of Medicine, Department of Hematology, Sakarya, Turkey
| | - Yusuf Baran
- İzmir Institute of Technology, Department of Molecular Biology and Genetics, İzmir, Turkey
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140
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Ali MK, Zhen G, Nzungize L, Stojkoska A, Duan X, Li C, Duan W, Xu J, Xie J. Mycobacterium tuberculosis PE31 ( Rv3477) Attenuates Host Cell Apoptosis and Promotes Recombinant M. smegmatis Intracellular Survival via Up-regulating GTPase Guanylate Binding Protein-1. Front Cell Infect Microbiol 2020; 10:40. [PMID: 32117813 PMCID: PMC7020884 DOI: 10.3389/fcimb.2020.00040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 01/21/2020] [Indexed: 12/23/2022] Open
Abstract
The Mycobacterium (M.) tuberculosis comprising proline–glutamic acid (PE) subfamily proteins associate with virulence, pathogenesis, and host-immune modulations. While the functions of most of this family members are not yet explored. Here, we explore the functions of “PE only” subfamily member PE31 (Rv3477) in virulence and host-pathogen interactions. We have expressed the M. tuberculosis PE31 in non-pathogenic Mycobacterium smegmatis strain (Ms_PE31) and demonstrated that PE31 significantly altered the cell facet features including colony morphology and biofilm formation. PE31 expressing M. smegmatis showed more resistant to the low pH, diamide, H2O2 and surface stress. Moreover, Ms_PE31 showed higher intracellular survival in macrophage THP-1 cells. Ms_PE31 significantly down-regulated the production of IL-12p40 and IL-6, while up-regulates the production of IL-10 in macrophages. Ms_PE31 also induced the expression of guanylate-binding protein-1 (GBP-1) in macrophages. Further analysis demonstrates that Ms_PE31 inhibits the caspase-3 activation and reduces the macrophages apoptosis. Besides, the NF-κB signaling pathway involves the interplay between Ms_PE31 and macrophages. Collectively, our finding identified that PE31 act as a functionally relevant virulence factor of M. tuberculosis.
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Affiliation(s)
- Md Kaisar Ali
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Gong Zhen
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Lambert Nzungize
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Andrea Stojkoska
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Xiangke Duan
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Chunyan Li
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Wei Duan
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Junqi Xu
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Jianping Xie
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
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Sung CM, Kim RJ, Hah YS, Gwark JY, Park HB. In vitro effects of alendronate on fibroblasts of the human rotator cuff tendon. BMC Musculoskelet Disord 2020; 21:19. [PMID: 31926548 PMCID: PMC6955091 DOI: 10.1186/s12891-019-3014-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 12/19/2019] [Indexed: 12/16/2022] Open
Abstract
Background Bone mineral density of the humeral head is an independent determining factor for postoperative rotator cuff tendon healing. Bisphosphonates, which are commonly used to treat osteoporosis, have raised concerns regarding their relationships to osteonecrosis of the jaw and to atypical fracture of the femur. In view of the prevalence of rotator cuff tear in osteoporotic elderly people, it is important to determine whether bisphosphonates affect rotator cuff tendon healing. However, no studies have investigated bisphosphonates’ cytotoxicity to human rotator cuff tendon fibroblasts (HRFs) or bisphosphonates’ effects on rotator cuff tendon healing. The purpose of this study was to evaluate the cytotoxicity of alendronate (Ald), a bisphosphonate, and its effects on HRF wound healing. Methods HRFs were obtained from human supraspinatus tendons, using primary cell cultures. The experimental groups were control, 0.1 μM Ald, 1 μM Ald, 10 μM Ald, and 100 μM Ald. Alendronate exposure was for 48 h, except during a cell viability analysis with durations from 1 day to 6 days. The experimental groups were evaluated for cell viability, cell cycle and cell proliferation, type of cell death, caspase activity, and wound-healing ability. Results The following findings regarding the 100 μM Ald group contrasted with those for all the other experimental groups: a significantly lower rate of live cells (p < 0.01), a higher rate of subG1 population, a lower rate of Ki-67 positive cells, higher rates of apoptosis and necrosis, a higher number of cells with DNA fragmentation, higher caspase-3/7 activity (p < 0.001), and a higher number of caspase-3 positive staining cells. In scratch-wound healing analyses of all the experimental groups, all the wounds healed within 48 h, except in the 100 μM Ald group (p < 0.001). Conclusions Low concentrations of alendronate appear to have little effect on HRF viability, proliferation, migration, and wound healing. However, high concentrations are significantly cytotoxic, impairing cellular proliferation, cellular migration, and wound healing in vitro.
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Affiliation(s)
- Chang-Meen Sung
- Department of Orthopaedic Surgery, Gyeongsang National University College of Medicine, Jinju, South Korea
| | - Ra Jeong Kim
- Department of Convergence Medical Science, Gyeongsang National University, Jinju, South Korea
| | - Young-Sool Hah
- Institute of Health Sciences, Gyeongsang National University School of Medicine and Biomedical Research Institute, Gyeongsang National University Hospital, Jinju, South Korea
| | - Ji-Yong Gwark
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea, 51472
| | - Hyung Bin Park
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea, 51472.
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Wei B, Liu YS, Guan HX. MicroRNA-145-5p attenuates high glucose-induced apoptosis by targeting the Notch signaling pathway in podocytes. Exp Ther Med 2020; 19:1915-1924. [PMID: 32104249 DOI: 10.3892/etm.2020.8427] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 07/12/2019] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs/miRs) are considered to serve essential roles in podocyte apoptosis, and to be critical in the development of diabetic nephropathy (DN). Activation of the Notch signaling pathway has been demonstrated to serve an important role in DN development; however, its regulatory mechanisms are not fully understood. The present study used a high glucose (HG)-induced in vitro apoptosis model using mouse podocytes. Expression levels of miR-145-5p and its target, Notch1, and other key factors involved in the apoptosis signaling pathway were detected and measured by reverse transcription-quantitative PCR and western blotting. A luciferase reporter assay was performed to elucidate the miRNA-target interactions. The functions of miR-145-5p in apoptosis were detected using flow cytometry and TUNEL staining. The present study demonstrated that in HG conditions, miR-145-5p overexpression inhibited Notch1, Notch intracellular domain, Hes1 and Hey1 expression at the mRNA and protein levels. Notch1 was identified as a direct target of miR-145-5p. Furthermore, cleaved caspase-3, Bcl-2 and Bax levels were reduced significantly by miR-145-5p overexpression. These results indicate that miR-145-5p overexpression inhibited the Notch signaling pathway and podocyte lesions induced by HG. In conclusion, the results of the present study suggested that miR-145-5p may be a regulator of DN. Additionally, miR-145-5p inhibited HG-induced apoptosis by directly targeting Notch1 and dysregulating apoptotic factors, including cleaved caspase-3, Bcl-2 and Bax. The results of the present study provided evidence that miR-145-5p may offer a novel approach for the treatment of DN.
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Affiliation(s)
- Bing Wei
- Department of Endocrinology, Daqing Oil Field General Hospital, Daqing, Heilongjiang 163411, P.R. China
| | - Yi-Song Liu
- Dental Department, Daqing Oil Field General Hospital, Daqing, Heilongjiang 163411, P.R. China
| | - Hai-Xia Guan
- Department of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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143
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A biomolecular network-based strategy deciphers the underlying molecular mechanisms of Bupleuri Radix/ Curcumae Radix medicine pair in the treatment of hepatitis C. Eur J Integr Med 2020. [DOI: 10.1016/j.eujim.2019.101043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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144
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Wu P, Shi X, Luo M, Inam-U-Llah, Li K, Zhang M, Ma J, Li Y, Liu Y, Zhang C, Liu X, Li S, Li Q, Chen X, Che X, Piao F. Taurine inhibits neuron apoptosis in hippocampus of diabetic rats and high glucose exposed HT-22 cells via the NGF-Akt/Bad pathway. Amino Acids 2019; 52:87-102. [PMID: 31875259 DOI: 10.1007/s00726-019-02810-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 11/28/2019] [Indexed: 01/23/2023]
Abstract
Type 2 Diabetes causes learning and memory deficits that might be mediated by hippocampus neuron apoptosis. Studies found that taurine might improve cognitive deficits under diabetic condition because of its ability to prevent hippocampus neuron apoptosis. However, the effect and mechanism is not clear. In this study, we explore the effect and mechanism of taurine on inhibiting hippocampus neuron apoptosis. Sixty male Sprague-Dawley rats were randomly divided into control, T2D, taurine treatment (giving 0.5%, 1%, and 2% taurine in drinking water) groups. Streptozotocin was used to establish the diabetes model. HT-22 cell (hippocampus neurons line) was used for in vitro experiments. Morris Water Maze test was used to check the learning and memory ability, TUNEL assay was used to measure apoptosis and nerve growth factor (NGF); Akt/Bad pathway relevant protein was detected by western blot. Taurine improved learning and memory ability and significantly decreased apoptosis of the hippocampus neurons in T2D rats. Moreover, taurine supplement also inhibited high glucose-induced apoptosis in HT-22 cell in vitro. Mechanistically, taurine increased the expression of NGF, phosphorylation of Trka, Akt, and Bad, as well as reduced cytochrome c release from mitochondria to cytosol. However, beneficial effects of taurine were blocked in the presence of anti-NGF antibody or Akt inhibitor. Taurine could inhibit hippocampus neuron apoptosis via NGF-Akt/Bad pathway. These results provide some clues that taurine might be efficient and feasible candidate for improvement of learning and memory ability in T2D rats.
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Affiliation(s)
- Pingan Wu
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Xiaoxia Shi
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Mengxin Luo
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Inam-U-Llah
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Kaixin Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Mengren Zhang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Jingran Ma
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Yuan Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Yanqing Liu
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Cong Zhang
- Department of Food Nutrition and Safety, Dalian Medical University, Dalian, China
| | - Xiaofang Liu
- Department of Food Nutrition and Safety, Dalian Medical University, Dalian, China
| | - Shuangyue Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Qiujuan Li
- Department of Experimental Teaching Center of Public Health, Dalian Medical University, Dalian, China
| | - Xiaochi Chen
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China
| | - Xiangyu Che
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China.
| | - Fengyuan Piao
- Integrative Laboratory, Affiliated Zhong Shan Hospital of Dalian University, Dalian, 116001, China.
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145
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Protopine Protects Mice against LPS-Induced Acute Kidney Injury by Inhibiting Apoptosis and Inflammation via the TLR4 Signaling Pathway. Molecules 2019; 25:molecules25010015. [PMID: 31861525 PMCID: PMC6982873 DOI: 10.3390/molecules25010015] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 12/16/2022] Open
Abstract
Corydalis humosa Migo is a traditional Chinese medicine that clears away damp heat, relieves sore. Protopine (PRO) is an alkaloid component isolated from C. humosa Migo. However, the role of protopine in acute kidney injury (AKI) has not yet been reported. This study aims to investigate the effect and mechanism of protopine isolated from C. humosa Migo on lipopolysaccharide (LPS)-induced AKI in mice. Inflammation accumulation was assessed by small animal living imaging. The blood urea nitrogen (BUN), and serum creatinine (Scr) were measured to assess the effects of protopine on renal function in LPS-induced AKI. The levels of tumor necrosis factor (TNF), interleukin-2 (IL-2), interferon-γ (IFN-γ), and (interleukin-10) IL-10 in serum were detected by cytometric bead array. Flow cytometry was used to detect the levels of reactive oxygen species (ROS) in primary kidney cells. The proportions of granulocytes, neutrophils, and macrophages in peripheral blood were examined to evaluate the effect of protopine on immune cells in mice with AKI. Toll-like receptor (TLR4) and apoptotic signaling pathway were detected by Western blot analysis. The results showed that protopine markedly improved the renal function, relieve inflammation, reversed inflammatory cytokines, transformed apoptosis markers, and regulated the TLR4 signaling pathway in mice with AKI induced by LPS. The protopine isolated from C.humosa Migo protected mice against LPS-induced AKI by inhibiting apoptosis and inflammation via the TLR4 signaling pathway, thus providing a molecular basis for a novel medical treatment of AKI.
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146
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Gao Y, Yan Y, Fang Q, Zhang N, Kumar G, Zhang J, Song LJ, Yu J, Zhao L, Zhang HT, Ma CG. The Rho kinase inhibitor fasudil attenuates Aβ 1-42-induced apoptosis via the ASK1/JNK signal pathway in primary cultures of hippocampal neurons. Metab Brain Dis 2019; 34:1787-1801. [PMID: 31482248 DOI: 10.1007/s11011-019-00487-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/27/2019] [Indexed: 12/13/2022]
Abstract
Alzheimer's disease (AD), a chronic, progressive, neurodegenerative disorder, is the most common type of dementia. Beta amyloid (Aβ) peptide aggregation and phosphorylated tau protein accumulation are considered as one of the causes for AD. Our previous studies have demonstrated the neuroprotective effect of the Rho kinase inhibitor fasudil, but the mechanism remains elucidated. In the present study, we examined the effects of fasudil on Aβ1-42 aggregation and apoptosis and identified the intracellular signaling pathways involved in these actions in primary cultures of mouse hippocampal neurons. The results showed that fasudil increased neurite outgrowth (52.84%), decreased Aβ burden (46.65%), Tau phosphorylation (96.84%), and ROCK-II expression. In addition, fasudil reversed Aβ1-42-induced decreased expression of Bcl-2 and increases in caspase-3, cleaved-PARP, phospho-JNK(Thr183/Tyr185), and phospho-ASK1(Ser966). Further, fasudil decreased mitochondrial membrane potential and intracellular calcium overload in the neurons treated with Aβ1-42. These results suggest that inhibition of Rho kinase by fasudil reverses Aβ1-42-induced neuronal apoptosis via the ASK1/JNK signal pathway, calcium ions, and mitochondrial membrane potential. Fasudil could be a drug of choice for treatment of Alzheimer's disease.
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Affiliation(s)
- Ye Gao
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, China
| | - Yuqing Yan
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, China.
| | - Qingli Fang
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, China
| | - Nianping Zhang
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, China
| | - Gajendra Kumar
- Department of Biomedical Sciences, City University of Hong Kong, Tat Chee Avenue, Hong Kong
- Bio-Signal technologies (HK) Limited, 9th Floor, Amtel Building,148 Des Voeux Road Central, Central, Hong Kong
| | - Jihong Zhang
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, China
| | - Li-Juan Song
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Research Center of Neurobiology, Shanxi University of Chinese Medicine, Taiyuan, China
| | - Jiezhong Yu
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, China
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Linhu Zhao
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, China
| | - Han-Ting Zhang
- Departments of Neuroscience and Behavioral Medicine & Psychiatry, the Rockefeller Neurosciences Institute, West Virginia University Health Sciences Center, Morgantown, WV, 26506, USA.
| | - Cun-Gen Ma
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, China.
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Research Center of Neurobiology, Shanxi University of Chinese Medicine, Taiyuan, China.
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147
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Chamani E, Rezaei Z, Dastjerdi K, Javanshir S, Khorsandi K, Mohammadi GA. Evaluation of some genes and proteins involved in apoptosis on human chronic myeloid leukemia cells (K562 cells) by datura innoxia leaves aqueous extract. J Biomol Struct Dyn 2019; 38:4838-4849. [PMID: 31709925 DOI: 10.1080/07391102.2019.1691661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Datura innoxia (D. innoxia) has an extensive usage in traditional medicine and can also be used for intervention therapy in order to treat cancer. Despite of accomplishing some researches on D. innoxia mechanism, still our knowledge is very little about exact D. innoxia apoptotic mechanism on human chronic myeloid leukemia cells (K562 cells). This study purpose was to clarify the molecular mechanism of apoptosis, which was mediated by D. innoxia leaves aqueous extract in K562 cells. MTT assay and flow cytometry was applied in order to assess the viability and apoptosis induction of K562 cells and normal human lymphoid B cells in the D. innoxia presence. Finally, the expression of the apoptotic related genes (p53, BAX, BCL2, Caspases 3, 6, 7 and 9) were evaluated using quantitative Real-Time PCR. Western blot analysis was applied for assessing the protein expression. MTT results indicated that D. innoxia could inhibit the viability of K562 cells in a dose- and time-dependent manner. In parallel, D. innoxia inhibitory effect on normal human lymphoid B cells was lower in comparison with its effect on K562 cells at the same concentrations and same incubation time. Apoptosis induction in K562 cells after D. innoxia exposure was determined by flow cytometry. Apoptosis was activated by D. innoxia in K562 cells throughout increasing the expression of P53, BAX/BCL2 ratio, caspase 9, 3, 6, 7. Western blot analysis demonstrated significant increase in cleaved PARP-1 and cleaved caspase 3 in treated K562 cells with high D. innoxia leaves aqueous extract concentration. D. innoxia leaves trigger apoptosis in K562 cells throughout intrinsic apoptotic pathway.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Elham Chamani
- Faculty of Medicine, Department of Biochemistry, Birjand University of Medical Sciences, Birjand, Iran
| | - Zohreh Rezaei
- Department of Biology, University of Sistan and Baluchestan, Zahedan, Iran
| | - Kazem Dastjerdi
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran.,Faculty of Medicine, Department of Medical Biotechnology, Birjand University of Medical Sciences, Birjand, Iran
| | - Setareh Javanshir
- Department of Clinical Biochemistry, Afzalipour School of Medicine & Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Khatereh Khorsandi
- Department of Photodynamic, Medical Laser Research Center, YARA Institute, ACECR, Tehran, Iran
| | - Gholam Abbas Mohammadi
- Department of Clinical Biochemistry, Afzalipour School of Medicine & Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran
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148
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Neuroprotective Effect of Cyperi rhizome against Corticosterone-Induced PC12 Cell Injury via Suppression of Ca 2+ Overloading. Metabolites 2019; 9:metabo9110244. [PMID: 31652802 PMCID: PMC6918173 DOI: 10.3390/metabo9110244] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 10/17/2019] [Accepted: 10/21/2019] [Indexed: 01/07/2023] Open
Abstract
Cyperi Rhizoma (CR) is a well-known functional food and traditional herbal medicine in Asian countries for the treatment of menstrual or emotional disturbances in women. Recent studies have shown the pharmacological effects of CR on neuronal diseases, such as Parkinson’s disease (PD) and depression. Thus, the neuroprotective effect of CR might play a vital role in exerting its effect. Here, corticosterone-induced PC12 cells were applied to screen the active fraction of CR and evaluate its neuroprotective effect. The results indicated that the fraction containing medium-polarity chemical constituents (CR-50E) displayed the best protection effect. CR-50E could increase the cell viability and reduce cell apoptosis through inhibiting oxidative stress and decreasing the lactate dehydrogenase LDH release induced by corticosterone. Further, the mechanism of action was explored by cell metabolomics. The result showed CR-50E mediated the sphingolipids metabolism of corticosterone-induced PC12 cells, which suggested inhibition of Ca2+ overloading may involve the protection of CR-50E against cell damage. The expression levels of three key proteins in calcium transport, including phospholipase A2 (PLA2), calcium/calmodulin independent protein kinase II (CaMK II), and caspase-3, confirmed the above result by Western blot. The findings suggest that CR-50E can suppress the disequilibrium of calcium homeostasis-mediated apoptosis by improving the abnormal sphingolipids metabolism as well as remedying the damage of the cell membrane.
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149
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Hepatic and renal tissue damage in Balb/c mice exposed to diisodecyl phthalate: The role of oxidative stress pathways. Food Chem Toxicol 2019; 132:110600. [DOI: 10.1016/j.fct.2019.110600] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 06/16/2019] [Accepted: 06/19/2019] [Indexed: 02/02/2023]
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150
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Liu H, Zhang L, Wang P. Complement factor H‑related 3 overexpression affects hepatocellular carcinoma proliferation and apoptosis. Mol Med Rep 2019; 20:2694-2702. [PMID: 31524260 PMCID: PMC6691229 DOI: 10.3892/mmr.2019.10514] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 12/07/2018] [Indexed: 12/14/2022] Open
Abstract
Complement factor H‑related 3 (CFHR3) belongs to the human factor H protein family and is associated with various human diseases, including nephropathy, age‑related macular degeneration and atypical hemolytic uremic syndrome. However, to the best of our knowledge, the role of CFHR3 in hepatocellular carcinoma (HCC) remains largely unknown. In the present study, reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) and western blot analysis were performed to determine mRNA and protein expression levels of CFHR3 in HCC and normal adjacent tissue. In addition, CFHR3 was overexpressed in Huh‑7 cells and cell counting kit‑8 assay was used to determine cell viability. Cell proliferation and apoptosis were assessed using flow cytometry, RT‑qPCR and western blotting. The results demonstrated that mRNA (2‑ΔΔCq) and protein expression levels of CFHR3 were significantly lower in tumor tissue compared with in adjacent tissue. Additionally, CFHR3 overexpression decreased cell viability, inhibited cell proliferation and significantly increased apoptosis. It was also identified that CFHR3 could downregulate the expression of Ki67. The results suggested that CFHR3 induced apoptosis by downregulating the expression of survivin and B cell lymphoma 2, upregulating the expression of Bcl‑2‑associated X and promoting caspase‑3 activity. Western blotting revealed that CFHR3 significantly inhibited the protein expression levels of phosphorylated (p)‑phosphoinositide 3‑kinase (PI3K), p‑protein kinase B (Akt) and p‑mammalian target of rapamycin (mTOR). Overexpression of CFHR3 suppressed proliferation and promoted apoptosis of HCC cells by inhibiting the PI3K/Akt/mTOR signaling pathway.
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Affiliation(s)
- Hong Liu
- Department of Hepatology, Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Ligang Zhang
- Department of Hepatology, Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Pengyan Wang
- Department of Research and Education, Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
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