1
|
Han S, Han X, Li Y, Li K, Yin J, Gong S, Fang Z. Wheat lesion mimic homology gene TaCAT2 enhances plant resistance to biotic and abiotic stresses. Int J Biol Macromol 2024; 277:134197. [PMID: 39069064 DOI: 10.1016/j.ijbiomac.2024.134197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
Lesion mimic mutants (LMMs) refer to the spontaneous formation of disease-like spots on leaves without any obvious pathogen infection. The LMM genes can regulate plant immunity, thus promoting the defense of crops against pathogens. However, there is a lack of systematic understanding of the regulatory mechanism of LMMs in wheat. This study identified a wheat LMM TaCAT2, a homolog of the Arabidopsis CAT2. The prediction of the cis-regulatory element revealed that TaCAT2 was involved in the response of plants to various hormones and stresses. RT-qPCR analysis indicated that TaCAT2 was significantly up-regulated by NaCl, drought, and Fusarium graminearum infection. Fluorescence microscopy showed that the TaCAT2 was localized to the peroxisome. Overexpression of TaCAT2 enhanced plant resistance to Phytophthora infestation and F. graminearum by constitutionally activating SA and JA pathways. VIGS of TaCAT2 enhanced the sensitivity of wheat to F. graminearum. Further, TaCAT2 enhanced stress resistance by scavenging the excessive ROS and increasing the activities of antioxidative enzymes. This study lays the basis for the functional identification of TaCAT2 and its applicability in the disease resistance of wheat.
Collapse
Affiliation(s)
- Shuo Han
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), Hubei Engineering Research Center for Pest Forewarning and Management, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China.
| | - Xiaowen Han
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), Hubei Engineering Research Center for Pest Forewarning and Management, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China.
| | - Yiting Li
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), Hubei Engineering Research Center for Pest Forewarning and Management, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China.
| | - Keke Li
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), Hubei Engineering Research Center for Pest Forewarning and Management, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China.
| | - Junliang Yin
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), Hubei Engineering Research Center for Pest Forewarning and Management, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China; Key Laboratory of Integrated Pest Management of Crops in Central China, Ministry of Agriculture, Hubei Key Laboratory of Crop Diseases, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan 430064, Hubei, China.
| | - Shuangjun Gong
- Key Laboratory of Integrated Pest Management of Crops in Central China, Ministry of Agriculture, Hubei Key Laboratory of Crop Diseases, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan 430064, Hubei, China.
| | - Zhengwu Fang
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), Hubei Engineering Research Center for Pest Forewarning and Management, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China.
| |
Collapse
|
2
|
Chai D, Jiang H, Lv X. The impact of dexmedetomidine on ketamine-induced neurotoxicity and cognitive impairment in young mice. Int J Dev Neurosci 2024. [PMID: 39192610 DOI: 10.1002/jdn.10373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/15/2024] [Accepted: 08/16/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND The potential neuroprotective effects of dexmedetomidine against ketamine-induced neurotoxicity remain inconclusive. This study aims to investigate the influence of dexmedetomidine on ketamine-induced neuronal apoptosis and neurodevelopmental toxicity. METHODS In vitro experiments employed concentrations of 0.1 uM for dexmedetomidine and 50 uM for ketamine individually as well as their combination. Changes in apoptotic proteins and dendritic development in neurons were assessed after a 6-h exposure to the drugs with evaluations conducted 24 hs' post-treatment. In vivo experiments entailed intraperitoneal administration starting from postnatal Day 7 (P7) continuously for 3 days (P7-P9) using dosages of 100 mg/kg for ketamine and 1 mg/kg for dexmedetomidine alone or combined. Learning, memory and motor coordination abilities were evaluated via rotary rod tests and shuttle box experiments at P30 and P60, respectively. RESULTS Dexmedetomidine effectively mitigated ketamine-induced apoptosis in hippocampal neurons but did not alleviate associated dendritic developmental abnormalities. Although causing reduced motor coordination in mice, no improvement was observed with regard to this effect or reaction speed when treated with dexmedetomidine alongside ketamine. CONCLUSION This study demonstrates that while dexmedetomidine can mitigate ketamine-induced neuronal apoptosis, it has limited impact on its associated neurodevelopmental toxicities.
Collapse
Affiliation(s)
- Dongdong Chai
- Department of Anesthesiology and Critical Care Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Jiang
- Department of Anesthesiology and Critical Care Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiang Lv
- Department of Anesthesiology and Critical Care Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
3
|
Cheng W, Ren Y, Yu C, Zhou T, Zhang Y, Lu L, Liu Y, Xu D. CyHV-2 infection triggers mitochondrial-mediated apoptosis in GiCF cells by upregulating the pro-apoptotic gene ccBAX. FISH & SHELLFISH IMMUNOLOGY 2024; 147:109400. [PMID: 38253137 DOI: 10.1016/j.fsi.2024.109400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/08/2024] [Accepted: 01/19/2024] [Indexed: 01/24/2024]
Abstract
Apoptosis is a physiological cell death phenomenon, representing one of the fundamental physiological mechanisms for maintaining homeostasis in living organisms. Previous studies have observed typical apoptotic features in Carassius auratus gibelio caudal fin cell (GiCF) infected with Cyprinid herpesvirus 2 (CyHV-2), and found a significant up-regulation of ccBAX expression in these infected cells. However, the specific apoptotic mechanism involved remains unclear. In this study, we utilized the GiCF cell line to investigate the apoptotic mechanism during CyHV-2 infection. Immunofluorescence staining revealed translocation of ccBAX into mitochondria upon CyHV-2 infection. Flow cytometry analysis demonstrated that overexpression of ccBAX expedited virus-induced apoptosis, characterized by heightened mitochondrial depolarization, increased transcriptional levels of Cytochrome c (Cyto c) in both the cytoplasm and mitochondria, and augmented Caspase 3/7 enzyme activity. Bax inhibitor peptide V5 (BIP-V5), an inhibitor interfering with the function of Bax proteins, inhibited Bax-mediated apoptotic events through the mitochondrial pathway and attenuated apoptosis induced by CyHV-2. In this study, it was identified for the first time that CyHV-2 induces apoptosis via the mitochondrial pathway in GiCF cells, bridging an important gap in our understanding regarding cell death mechanisms induced by herpesvirus infections in fish species. These findings provide a theoretical basis for comprehending viral apoptotic regulation mechanisms and the prevention and control of cellular pathologies caused by CyHV-2 infection.
Collapse
Affiliation(s)
- Wenjie Cheng
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
| | - Yilin Ren
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
| | - Chenwei Yu
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
| | - Tianqi Zhou
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
| | - Ye Zhang
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
| | - Liqun Lu
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
| | - Yanli Liu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Dan Xu
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China.
| |
Collapse
|
4
|
Liu Q, Luo Z, Yang J. Polyphyllin Ⅲ regulates EMT of lung cancer cells through GSK-3β/β-catenin pathway. Ann Med Surg (Lond) 2024; 86:1376-1385. [PMID: 38463106 PMCID: PMC10923388 DOI: 10.1097/ms9.0000000000001629] [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: 09/21/2023] [Accepted: 12/07/2023] [Indexed: 03/12/2024] Open
Abstract
Background Some studies have found that the application of traditional Chinese medicine in the treatment of lung cancer has achieved satisfying results. Polyphyllin Ⅲ (PP Ⅲ) is a natural steroid saponin from P. polyphylla var. yunnanensis, and its analogs have played a wide role in anticancer research. This study aimed to investigate the effect of PP Ⅲ on the development of lung cancer and its molecular mechanism. Methods A549 and NCI-H1299 cell lines were treated with PP Ⅲ in gradient concentration to detect the IC50 of the cells, and the optimal concentration was selected for subsequent experiments. The effects of PP III treatment on lung cancer were investigated in vitro and in vivo. Results In vitro experiments, it was found that the proliferation, invasion, migration, and colony formation ability of cancer cells were significantly reduced after PP III treatment, while accompanied by a large number of cell apoptosis. Further detection showed that N-cadherin was significantly decreased, E-cadherin was increased, and Snail and Twist were decreased in A549 cells and NCI-H1299 cells, respectively. In addition, GSK-3β expression was increased, while β-catenin expression was reduced with PP III treatment. In the mouse model, it was demonstrated that the volume of transplanted tumors was significantly reduced after PP Ⅲ treatment. Conclusions PP Ⅲ has the capacity to inhibit the progression of lung cancer and regulate epithelial-mesenchymal transition through the GSK-3β/β-catenin pathway to suppress the malignant behavior of cancer cells. The application of PP Ⅲ is expected to be an effective method for the treatment of lung cancer.
Collapse
Affiliation(s)
| | - Zhuang Luo
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, People’s Republic of China
| | - Jiao Yang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, People’s Republic of China
| |
Collapse
|
5
|
Dai Q, Shi R, Zhang G, Wang Y, Ye L, Peng L, Guo S, He J, Yang H, Jiang Y. miR-539-5p targets BMP2 to regulate Treg activation in B-cell acute lymphoblastic leukemia through TGF-β/Smads/MAPK. Exp Biol Med (Maywood) 2024; 249:10111. [PMID: 38510491 PMCID: PMC10954254 DOI: 10.3389/ebm.2024.10111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 10/02/2023] [Indexed: 03/22/2024] Open
Abstract
MicroRNAs (mRNAs) were believed to play an important role in cancers, and this study aimed to explore the mechanism of miRNA regulating Treg in B-cell acute lymphoblastic leukemia (B-ALL). Firstly, the differentially expressed miRNAs and target genes significantly associated with Tregs were screened out by high-throughput sequencing, and their enrichment pathways were analyzed. The binding relationship between miRNA and target genes was further verified, and the effects of miRNA on the proliferation and apoptosis of B-ALL Nalm-6 cells and Treg activation were analyzed. Results showed that differentially expressed miR-539-5p was significantly under-expressed, and its target gene BMP2 was significantly over-expressed in B-ALL, and significantly enriched in the TGF-β1 pathway. In addition, both miR-539-5p and BMP2 were significantly correlated with Treg activity in B-ALL. In vitro experiments further confirmed that miR-539-5p could directly target BMP2. The low expression of miR-539-5p in B-ALL significantly promoted BMP2 expression to promote the proliferation and inhibit apoptosis of Nalm-6 cells. Furthermore, the high expression of BMP2 in B-ALL could cooperate with TGF-β1 to promote the activation of human CD4+CD25-T cells to Treg, and significantly activate the TGF-β/Smads/MAPK pathway. In vivo experiments also confirmed that overexpression of miR-539-5p significantly inhibited BMP2 to suppress Treg activation and Smad1 and Smad2 phosphorylation, and finally inhibit the B-ALL process. In conclusion, miR-539-5p was significantly under-expressed in B-ALL and could target BMP2 to promote its expression, and the overexpressed BMP2 further promoted Treg activation in B-ALL by regulating TGF-β/Smads/MAPK pathway.
Collapse
Affiliation(s)
- Qingkai Dai
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Rui Shi
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Ge Zhang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Yuefang Wang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Lei Ye
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Luyun Peng
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Siqi Guo
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Jiajing He
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Hao Yang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| | - Yongmei Jiang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric and Gynecological and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu, Sichuan, China
| |
Collapse
|
6
|
Johnson L, Sarosiek KA. Role of intrinsic apoptosis in environmental exposure health outcomes. Trends Mol Med 2024; 30:56-73. [PMID: 38057226 DOI: 10.1016/j.molmed.2023.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/31/2023] [Accepted: 11/06/2023] [Indexed: 12/08/2023]
Abstract
Environmental exposures are linked to diseases of high public health concern, including cancer, neurodegenerative disorders, and autoimmunity. These diseases are caused by excessive or insufficient cell death, prompting investigation of mechanistic links between environmental toxicants and dysregulation of cell death pathways, including apoptosis. This review describes how legacy and emerging environmental exposures target the intrinsic apoptosis pathway to potentially drive pathogenesis. Recent discoveries reveal that dynamic regulation of apoptosis may heighten the vulnerability of healthy tissues to exposures in children, and that apoptotic signaling can guide immune responses, tissue repair, and tumorigenesis. Understanding how environmental toxicants dysregulate apoptosis will uncover opportunities to deploy apoptosis-modulating agents for the treatment or prevention of exposure-linked diseases.
Collapse
Affiliation(s)
- Lissah Johnson
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Laboratory for Systems Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Kristopher A Sarosiek
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Laboratory for Systems Pharmacology, Harvard Medical School, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute/Harvard Cancer Center, Boston, MA, USA.
| |
Collapse
|
7
|
Li Y, Long J, Li L, Yu Z, Liang Y, Hou B, Xiang L, Niu X. Pioglitazone protects PC12 cells against oxidative stress injury: An in vitro study of its antiapoptotic effects via the PPARγ pathway. Exp Ther Med 2023; 26:522. [PMID: 37854503 PMCID: PMC10580242 DOI: 10.3892/etm.2023.12221] [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: 07/22/2022] [Accepted: 01/20/2023] [Indexed: 10/20/2023] Open
Abstract
To the best of our knowledge, the role of peroxisome proliferator-activated receptor γ (PPARγ) in oxidative stress-induced PC12 cell damage is unknown. Using a PC12 cell model with H2O2 treatment, the present study investigated the expression levels of apoptosis-related genes and neuronal apoptosis after oxidative stress injury. The present study further investigated the protective effect and mechanism of pioglitazone, a PPARγ agonist. PC12 cells treated with H2O2 were used as a model of oxidative stress injury. An MTT assay and flow cytometry were used to detect the effect of H2O2 on PC12 cell viability and the protective effect of pioglitazone. A TUNEL assay was used to detect neuronal apoptosis. The expression levels of PPARγ, Bax, Bcl-2 and caspase-3 were examined by reverse transcription-quantitative PCR and western blotting. H2O2 reduced PC12 cell viability in a dose- and time-dependent manner. H2O2 significantly upregulated the protein expression levels of Bax and the cleaved caspase-3/caspase-3 ratio (P<0.01), decreased the protein expression levels of Bcl-2 (P<0.01), and increased the apoptosis rate of PC12 cells. Pioglitazone significantly reduced the protein expression levels of Bax and the cleaved caspase-3/caspase-3 ratio (P<0.01), increased the expression levels of Bcl-2 (P<0.01), decreased the Bax/Bcl-2 expression ratio (P<0.01) and increased the viability of H2O2-damaged PC12 cells in a dose-dependent manner. Treatment with the PPARγ antagonist GW9662 or PPARγ small interfering RNA counteracted the protective effect of pioglitazone on PC12 cells to different extents (P<0.01). Therefore, the present study reported the role of PPARγ in protecting PC12 cells against oxidative stress injury, which may lead to novel therapeutic approaches for neurodegenerative diseases.
Collapse
Affiliation(s)
- Yali Li
- Department of Rehabilitation, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, Shandong 264200, P.R. China
- Department of Rehabilitation Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261000, P.R. China
| | - Jun Long
- Department of Rehabilitation, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, Shandong 264200, P.R. China
| | - Libo Li
- Department of Rehabilitation, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Ziyao Yu
- College of Sports and Health, Shandong Sport University, Jinan, Shandong 250000, P.R. China
| | - Yanjing Liang
- Department of Rehabilitation, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, Shandong 264200, P.R. China
| | - Bin Hou
- Department of Rehabilitation, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, Shandong 264200, P.R. China
| | - Li Xiang
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xiaolin Niu
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| |
Collapse
|
8
|
Matsuyama M, Ortega JT, Fedorov Y, Scott-McKean J, Muller-Greven J, Buck M, Adams D, Jastrzebska B, Greenlee W, Matsuyama S. Development of novel cytoprotective small compounds inhibiting mitochondria-dependent cell death. iScience 2023; 26:107916. [PMID: 37841588 PMCID: PMC10568349 DOI: 10.1016/j.isci.2023.107916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/27/2023] [Accepted: 09/12/2023] [Indexed: 10/17/2023] Open
Abstract
We identified cytoprotective small molecules (CSMs) by a cell-based high-throughput screening of Bax inhibitors. Through a medicinal chemistry program, M109S was developed, which is orally bioactive and penetrates the blood-brain/retina barriers. M109S protected retinal cells in ocular disease mouse models. M109S directly interacted with Bax and inhibited the conformational change and mitochondrial translocation of Bax. M109S inhibited ABT-737-induced apoptosis both in Bax-only and Bak-only mouse embryonic fibroblasts. M109S also inhibited apoptosis induced by staurosporine, etoposide, and obatoclax. M109S decreased maximal mitochondrial oxygen consumption rate and reactive oxygen species production, whereas it increased glycolysis. These effects on cellular metabolism may contribute to the cytoprotective activity of M109S. M109S is a novel small molecule protecting cells from mitochondria-dependent apoptosis both in vitro and in vivo. M109S has the potential to become a research tool for studying cell death mechanisms and to develop therapeutics targeting mitochondria-dependent cell death pathway.
Collapse
Affiliation(s)
- Mieko Matsuyama
- Department of Ophthalmology and Visual Science, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Joseph T. Ortega
- Department of Pharmacology and Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Yuri Fedorov
- Department of Genetics and Genome Science, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Jonah Scott-McKean
- Department of Ophthalmology and Visual Science, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Macromolecular Science and Engineering, School of Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Jeannie Muller-Greven
- Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Matthias Buck
- Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Drew Adams
- Department of Genetics and Genome Science, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Beata Jastrzebska
- Department of Pharmacology and Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | | | - Shigemi Matsuyama
- Department of Ophthalmology and Visual Science, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Pharmacology and Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
- Division of Hematology and Oncology, Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
- Case Comprehensive Cancer Center, Cleveland, OH 44106, USA
| |
Collapse
|
9
|
Kucukbagriacik Y, Dastouri M, Yilmaz H, Altuntas EG. The apoptotic effect of the Lycopodium clavatum extracts on MCF-7 human breast cancer cells. Med Oncol 2023; 40:289. [PMID: 37658180 DOI: 10.1007/s12032-023-02159-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/12/2023] [Indexed: 09/03/2023]
Abstract
Breast cancer is a significant health problem worldwide, and the search for effective treatments is critical. Side effects of cancer treatments such as surgery, radiotherapy, and chemotherapy reduce the patient's standard of living. Recently, natural compounds from plants have gained attention as potential anticancer agents due to their safety, low toxicity, and potential efficacy. Lycopodium Clavatum (LC) is an herb abundant in tropical regions and Europe and is known for its various medicinal properties. In this study, we investigated the cytotoxic and apoptotic effects of LC Water Extract (LC-WE) and LC Ethanol Extract (LC-EE) plant extracts on MCF-7 human breast cancer cells. Our results showed that LC treatment led to a dose and time-dependent cytotoxic effect on MCF-7 cells, indicating its potential as an anticancer agent against human breast cancer. Additionally, we observed that LC treatment activated apoptosis-related proteins, including BAX, Caspase-3, and Caspase-9. These results suggest that LC may induce apoptosis as a mechanism underlying its cytotoxic effect on MCF-7 human breast cancer cells. Previous studies have shown the anti-cancer potential of LC against different types of cancer. However, the anti-cancer effect of LC on human breast cancer cells has not been investigated to date. Therefore, our study provides novel insights into the potential of LC as an anti-cancer agent against breast cancer. Overall, our results highlight the potential of LC as a promising natural compound for breast cancer treatment.
Collapse
Affiliation(s)
- Yusuf Kucukbagriacik
- Department of Biophysics, Gulhane Faculty of Medicine, Health Sciences University, Ankara, Turkey
- Yozgat Bozok University, Medical School, Yozgat, Turkey
| | - Mohammadreza Dastouri
- Faculty of Medical Biology, School of Medicine, Ankara Medipol University, Ankara, Turkey.
| | - Humeyra Yilmaz
- Department of Medical Biology, Institute of Health Sciences, Ankara Yildirim Beyazit University, Ankara, Turkey
| | | |
Collapse
|
10
|
Yang M, Gao X, Hu C, Wang S, Sheng H, Ma Y. Bta-miR-484 Targets SFRP1 and Affects Preadipocytes Proliferation, Differentiation, and Apoptosis. Int J Mol Sci 2023; 24:12710. [PMID: 37628891 PMCID: PMC10454478 DOI: 10.3390/ijms241612710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/02/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
MicroRNAs (miRNAs) are essential regulators of numerous biological processes in animals, including adipogenesis. Despite the abundance of miRNAs associated with adipogenesis, their exact mechanisms of action remain largely unknown. Our study highlights the role of bta-miR-484 as a major regulator of adipocyte proliferation, apoptosis, and differentiation. Here, we demonstrated that the expression of bta-miR-484 initially increased during adipogenesis before decreasing. Overexpression of bta-miR-484 in adipocytes ultimately inhibited cell proliferation and differentiation, reduced the number of EdU fluorescence-stained cells, increased the number of G1 phase cells, reduced the number of G2 and S phase cells, and downregulated the expression of proliferation markers (CDK2 and PCNA) and differentiation markers (CEBPA, FABP4, and LPL). Additionally, overexpression of bta-miR-484 promoted the expression of apoptosis-related genes (Caspase 3, Caspase 9, and BAX), and increased the number of apoptotic cells observed via flow cytometry. In contrast, bta-miR-484 inhibition in adipocytes yielded opposite effects to those observed during bta-miR-484 overexpression. Moreover, luciferase reporter assays confirmed SFRP1 as a target gene of bta-miR-484, and revealed that bta-miR-484 downregulates SFRP1 mRNA expression. These findings offer compelling evidence that bta-miR-484 targets SFRP1, inhibits proliferation and differentiation, and promotes apoptosis. Therefore, these results offer novel insights into the bta-miR-484 regulation of adipocyte growth and development.
Collapse
Affiliation(s)
| | | | | | | | | | - Yun Ma
- Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| |
Collapse
|
11
|
Cao X, Liu Q, Shi W, Liu K, Deng T, Weng X, Pan S, Yu Q, Deng W, Yu J, Wang Q, Xiao G, Xu X. Microfluidic fabricated bisdemethoxycurcumin thermosensitive liposome with enhanced antitumor effect. Int J Pharm 2023; 641:123039. [PMID: 37225026 DOI: 10.1016/j.ijpharm.2023.123039] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 04/17/2023] [Accepted: 05/05/2023] [Indexed: 05/26/2023]
Abstract
Bisdemethoxycurcumin (BDMC) is the main active ingredient that is isolated from Zingiberaceae plants, wherein it has excellent anti-tumor effects. However, insolubility in water limits its clinical application. Herein, we reported a microfluidic chip device that can load BDMC into the lipid bilayer to form BDMC thermosensitive liposome (BDMC TSL). The natural active ingredient glycyrrhizin was selected as the surfactant to improve solubility of BDMC. Particles of BDMC TSL had small size, homogenous size distribution, and enhanced cultimulative release in vitro. The anti-tumor effect of BDMC TSL on human hepatocellular carcinomas was investigated via 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method, live/dead staining, and flowcytometry. These results showed that the formulated liposome had a strong cancer cell inhibitory, and presented a dose-dependent inhibitory effect on migration. Further mechanistic studies showed that BDMC TSL combined with mild local hyperthermia could significantly upregulate B cell lymphoma 2 associated X protein levels and decrease B cell lymphoma 2 protein levels, thereby inducing cell apoptosis. The BDMC TSL that was fabricated via microfluidic device were decomposed under mild local hyperthermia, which could beneficially enhance the anti-tumor effect of raw insoluble materials and promote translation of liposome.
Collapse
Affiliation(s)
- Xia Cao
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China
| | - Qi Liu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China
| | - Wenwan Shi
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China
| | - Kai Liu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China
| | - Tianwen Deng
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China
| | - Xuedi Weng
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
| | - Siting Pan
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
| | - Qingtong Yu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China
| | - Wenwen Deng
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China
| | - Jiangnan Yu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China
| | - Qilong Wang
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China.
| | - Gao Xiao
- College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350108, Fujian, P. R. China.
| | - Ximing Xu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China; Medicinal function development of new food resources, Jiangsu Provincial Research center, Jiangsu, People's Republic of China.
| |
Collapse
|
12
|
Cao X, Liu Q, Adu-Frimpong M, Shi W, Liu K, Deng T, Yuan H, Weng X, Gao Y, Yu Q, Deng W, Yu J, Wang Q, Xiao G, Xu X. Microfluidic Generation of Near-Infrared Photothermal Vitexin/ICG Liposome with Amplified Photodynamic Therapy. AAPS PharmSciTech 2023; 24:82. [PMID: 36949351 DOI: 10.1208/s12249-023-02539-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/12/2023] [Indexed: 03/24/2023] Open
Abstract
Glioma, in which a malignant tumor cell occurs in neural mesenchymal cells, has a rapid progression and poor prognosis, which is still far from desirable in clinical treatments. We developed a lab-on-a-chip (LOC) device for the rapid and efficient preparation of vitexin/indocyanine green (ICG) liposomes. Vitexin could be released from liposome to kill cancer cell, which can potentially improve the glioma therapeutic effect and reduce the treatment time through synergistic photodynamic/photothermal therapies (PDT/PTT). The vitexin/ICG liposome was fabricated via LOC and its physicochemical property and release in vitro were evaluated. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method and live/dead staining were used to examine the enhanced antitumor effect of vitexin/ICG liposome in cooperation with PDT/PTT, while the related mechanism was explored by flow cytometry and western blot. The results were as follows: (1) The prepared vitexin/ICG liposome was smaller in size, homogenous in particle size distribution with significant low polydispersity index (PDI), and enhanced cumulative release in vitro. (2) We found that the formulated liposome presented strong cancer cell inhibition and suppression of its migration in a dose-dependent manner. (3) Further mechanistic studies showed that liposome combined with near-infrared irradiation could significantly upregulate levels of B cell lymphoma 2-associated X (Bax) protein and decrease B cell lymphoma 2 (Bcl-2) at protein levels. The vitexin/ICG liposomes prepared based on a simple LOC platform can effectively enhance the solubility of insoluble drugs, and the combined effect of PTT/PDT can effectively increase their antitumor effect, which provides a simple and valid method for the clinical translation of liposomes.
Collapse
Affiliation(s)
- Xia Cao
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Qi Liu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Michael Adu-Frimpong
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
- Department of Biochemistry and Forensic Sciences, School of Chemical and Biochemical Sciences, C. K. Tedam University of Technology and Applied Sciences (CKT-UTAS), Navrongo, UK-0215-5321, Ghana
| | - Wenwan Shi
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Kai Liu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Tianwen Deng
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Hui Yuan
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Xuedi Weng
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Yihong Gao
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Qingtong Yu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Wenwen Deng
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Jiangnan Yu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China
| | - Qilong Wang
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China.
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China.
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China.
| | - Gao Xiao
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China.
- College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350108, Fujian, People's Republic of China.
| | - Ximing Xu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China.
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang, Jiangsu, People's Republic of China.
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, People's Republic of China.
| |
Collapse
|
13
|
Romani D, Marchetti F, Di Nicola C, Cuccioloni M, Gong C, Eleuteri AM, Galindo A, Fadaei-Tirani F, Nabissi M, Pettinari R. Multitarget-Directed Gallium(III) Tris(acyl-pyrazolonate) Complexes Induce Ferroptosis in Cancer Cells via Dysregulation of Cell Redox Homeostasis and Inhibition of the Mevalonate Pathway. J Med Chem 2023; 66:3212-3225. [PMID: 36802330 PMCID: PMC10009752 DOI: 10.1021/acs.jmedchem.2c01374] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
A series of Ga(Qn)3 coordination compounds have been synthesized, where HQn is 1-phenyl-3-methyl-4-RC(═O)-pyrazolo-5-one. The complexes have been characterized through analytical data, NMR and IR spectroscopy, ESI mass spectrometry, elemental analysis, X-ray crystallography, and density functional theory (DFT) studies. Cytotoxic activity against a panel of human cancer cell lines was determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, with interesting results in terms of both cell line selectivity and toxicity values compared with cisplatin. The mechanism of action was explored by spectrophotometric, fluorometric, chromatographic, immunometric, and cytofluorimetric assays, SPR biosensor binding studies, and cell-based experiments. Cell treatment with gallium(III) complexes promoted several cell death triggering signals (accumulation of p27, PCNA, PARP fragments, activation of the caspase cascade, and inhibition of the mevalonate pathway) and induced changes in cell redox homeostasis (decreased levels of GSH/GPX4 and NADP(H), increased reactive oxygen species (ROS) and 4-hydroxynonenal (HNE), mitochondrial damage, and increased activity of CPR and CcO), identifying ferroptosis as the mechanism responsible for cancer cell death.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Agustín Galindo
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla, Aptdo 1203, 41071 Sevilla, Spain
| | - Farzaneh Fadaei-Tirani
- Institut of Chemical Sciences and Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | | | | |
Collapse
|
14
|
Zhang P, Guo H, Zhao F, Jia K, Yang F, Liu X. UBE2J1 knockdown promotes cell apoptosis in endometrial cancer via regulating PI3K/AKT and MDM2/p53 signaling. Open Med (Wars) 2023; 18:20220567. [PMID: 36852267 PMCID: PMC9961967 DOI: 10.1515/med-2022-0567] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 07/01/2022] [Accepted: 08/18/2022] [Indexed: 03/01/2023] Open
Abstract
Emerging evidence has demonstrated that ubiquitin conjugating enzyme E2 J1 (UBE2J1) exerts pivotal function in many cancers. UBE2J1 was reported to be dysregulated in endometrial cancer (EC). This study was designed to further investigate the regulatory character and mechanism of UBE2J1 in EC. Bioinformatic tools and databases were used to analyze gene expression pattern and gene expression correlation in EC tissues, and the prognosis of EC patients. Gene expression was evaluated by reverse-transcription quantitative polymerase chain reaction. Western blot was used for protein level detection. In vitro cell apoptosis was detected by flow cytometry analyses and TUNEL assays. In vivo cell apoptosis was evaluated by detecting Bax and Bcl-2 expression in tumor tissues via immunohistochemical and western blot analyses. In this study, UBE2J1 knockdown promoted cell apoptosis in EC cells and in mouse models of EC. PI3K and AKT expression is positively correlated with UBE2J1 level and is related to poor prognosis of EC patients. UBE2J1 knockdown repressed the PI3K/AKT pathway both in vitro and in vivo. UBE2J1 downregulation decreased MDM2 expression, but increased p53 expression. MDM2 overexpression reverses the promotion of UBE2J1 knockdown on cell apoptosis in EC. Overall, UBE2J1 knockdown induces cell apoptosis in EC by inactivating the PI3K/AKT signaling and suppressing the MDM2/p53 signaling.
Collapse
Affiliation(s)
- Ping Zhang
- Department of Gynaecology, The First People’s Hospital of Zhangjiagang Affiliated to Suzhou University, No. 68, West Jiyang Road, Zhangjiagang215600, Jiangsu, China
| | - Huiping Guo
- Department of Gynaecology, The First People’s Hospital of Zhangjiagang Affiliated to Suzhou University, Zhangjiagang215600, Jiangsu, China
| | - Fang Zhao
- Department of Gynaecology, The First People’s Hospital of Zhangjiagang Affiliated to Suzhou University, Zhangjiagang215600, Jiangsu, China
| | - Ke Jia
- Department of Gynaecology, The First People’s Hospital of Zhangjiagang Affiliated to Suzhou University, Zhangjiagang215600, Jiangsu, China
| | - Fei Yang
- Department of Gynaecology, The First People’s Hospital of Zhangjiagang Affiliated to Suzhou University, Zhangjiagang215600, Jiangsu, China
| | - Xiaoli Liu
- Department of Gynaecology, The First People’s Hospital of Zhangjiagang Affiliated to Suzhou University, Zhangjiagang215600, Jiangsu, China
| |
Collapse
|
15
|
WANG J, JIN QG, LIU RP, WANG XQ, LI YH, KIM NH, XU YN. Dihydromyricetin supplementation during in vitro culture improves porcine oocyte developmental competence by regulating oxidative stress. J Reprod Dev 2023; 69:10-17. [PMID: 36403957 PMCID: PMC9939282 DOI: 10.1262/jrd.2022-031] [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: 11/19/2022] Open
Abstract
Dihydromyricetin (DHM), a dihydroflavonoid compound, exhibits a variety of biological activities, including antitumor activity. However, the effects of DHM on mammalian reproductive processes, especially during early embryonic development, remain unclear. In this study, we added DHM to porcine zygotic medium to explore the influence and underlying mechanisms of DHM on the developmental competence of parthenogenetically activated porcine embryos. Supplementation with 5 μM DHM during in vitro culture (IVC) significantly improved blastocyst formation rate and increased the total number of cells in porcine embryos. Further, DHM supplementation also improved glutathione levels and mitochondrial membrane potential; reduced natural reactive oxygen species levels in blastomeres and apoptosis rate; upregulated Nanog, Oct4, SOD1, SOD2, Sirt1, and Bcl2 expression; and downregulated Beclin1, ATG12, and Bax expression. Collectively, DHM supplementation regulated oxidative stress during IVC and could act as a potential antioxidant during in vitro porcine oocytes maturation.
Collapse
Affiliation(s)
- Jing WANG
- College of Agriculture, Yanbian University, Yanji 133000, China,Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529000,
China
| | - Qing-Guo JIN
- College of Agriculture, Yanbian University, Yanji 133000, China
| | - Rong-Ping LIU
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529000,
China
| | - Xin-Qin WANG
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529000,
China
| | - Ying-Hua LI
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529000,
China
| | - Nam-Hyung KIM
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529000,
China
| | - Yong-Nan XU
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529000,
China
| |
Collapse
|
16
|
Shayan M, Eslami F, Khosravi A, Rashidian A, Jafari RM, Maroufi SF, Golroudbari HT, Dehpour AR. The Possible Protective Effects of Ondansetron and Tropisetron on Optic Nerve Crush Injury in Rats. Drug Res (Stuttg) 2023; 73:88-94. [PMID: 36423625 DOI: 10.1055/a-1969-4600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND This study aimed to evaluate the potential neuroprotective effect of cyclosporine - a calcineurin inhibitor-, ondansetron, and tropisetron-5-hydroxytryptamine (serotonin) 3 receptor (5-HT3R) antagonists-, on optic nerve crush (ONC) injury in rats. Moreover, underlying signaling activities of their beneficial neuroprotective effects were studied. METHODS Adult male rats were treated with the intravitreal administration of cyclosporine (1.6 mM), ondansetron (100 nM), and tropisetron (100 nM) immediately after the induction of ONC. Subsequently, on 7th day after surgery, the rats' retinas were extracted, and the expression of apoptotic regulators (Bax and Bcl-2) and calcineurin were studied by western blot analysis. RESULTS The induction of ONC injury was associated to higher expression of Bax and calcineurin, while Bcl-2 expression was considerably decreased in these animals. Intravitreal treatment with cyclosporine (1.6 mM), ondansetron (100 nM), and tropisetron (100 nM) significantly attenuated the increased expression of Bax and calcineurin. Moreover, the treatment with these agents resulted in an elevated expression of Bcl-2 in the retina. CONCLUSION Our findings indicate that cyclosporine, ondansetron, and tropisetron protect against ONC injury in rats, possibly via the suppression of apoptosis and modulation of calcineurin activity directly and via 5-HT3 receptors. Moreover, immunoblotting showed that tropisetron was more effective as opposed to ondansetron. Further studies are needed to evaluate the precise mechanism behind cyclosporine, ondansetron, and tropisetron activities.
Collapse
Affiliation(s)
- Maryam Shayan
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Faezeh Eslami
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ayda Khosravi
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Rashidian
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Razie Mohammad Jafari
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Farzad Maroufi
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hasti Tashak Golroudbari
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
17
|
Fish EW, Mendoza-Romero HN, Love CA, Dragicevich CJ, Cannizzo MD, Boschen KE, Hepperla A, Simon JM, Parnell SE. The pro-apoptotic Bax gene modifies susceptibility to craniofacial dysmorphology following gastrulation-stage alcohol exposure. Birth Defects Res 2022; 114:1229-1243. [PMID: 35396933 PMCID: PMC10103739 DOI: 10.1002/bdr2.2009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/11/2022] [Accepted: 03/23/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND During early development, alcohol exposure causes apoptotic cell death in discrete regions of the embryo which are associated with distinctive patterns of later-life abnormalities. In gastrulation, which occurs during the third week of human pregnancy, alcohol targets the ectoderm, the precursor of the eyes, face, and brain. This midline tissue loss leads to the craniofacial dysmorphologies, such as microphthalmia and a smooth philtrum, which define fetal alcohol syndrome (FAS). An important regulator of alcohol-induced cell death is the pro-apoptotic protein Bax. The current study determines if mice lacking the Bax gene are less susceptible to the pathogenic effects of gastrulation-stage alcohol exposure. METHODS Male and female Bax+/- mice mated to produce embryos with full (-/- ) or partial (+/- ) Bax deletions, or Bax+/+ wild-type controls. On Gestational Day 7 (GD 7), embryos received two alcohol (2.9 g/kg, 4 hr apart), or control exposures. A subset of embryos was collected 12 hr later and examined for the presence of apoptotic cell death, while others were examined on GD 17 for the presence of FAS-like facial features. RESULTS Full Bax deletion reduced embryonic apoptotic cell death and the incidence of fetal eye and face malformations, indicating that Bax normally facilitates the development of alcohol-induced defects. An RNA-seq analysis of GD 7 Bax+/+ and Bax-/- embryos revealed 63 differentially expressed genes, some of which may interact with the Bax deletion to further protect against apoptosis. CONCLUSIONS Overall, these experiments identify that Bax is a primary teratogenic mechanism of gastrulation-stage alcohol exposure.
Collapse
Affiliation(s)
- Eric W Fish
- Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Haley N Mendoza-Romero
- Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Charlotte A Love
- Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Constance J Dragicevich
- Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Michael D Cannizzo
- Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Karen E Boschen
- Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Austin Hepperla
- Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, North Carolina, USA.,Neuroscience Center, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Jeremy M Simon
- Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, North Carolina, USA.,Neuroscience Center, University of North Carolina, Chapel Hill, North Carolina, USA.,Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Scott E Parnell
- Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, North Carolina, USA.,Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, North Carolina, USA.,Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, North Carolina, USA
| |
Collapse
|
18
|
Huang L, An X, Zhu Y, Zhang K, Xiao L, Yao X, Zeng X, Liang S, Yu J. Netrin-1 induces the anti-apoptotic and pro-survival effects of B-ALL cells through the Unc5b-MAPK axis. Cell Commun Signal 2022; 20:122. [PMID: 35974411 PMCID: PMC9380321 DOI: 10.1186/s12964-022-00935-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/08/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND B-cell acute lymphoblastic leukemia (B-ALL) comprises over 85% of all acute lymphoblastic leukemia (ALL) cases and is the most common childhood malignancy. Although the 5 year overall survival of patients with B-ALL exceeds 90%, patients with relapsed or refractory B-ALL may suffer from poor prognosis and adverse events. The axon guidance factor netrin-1 has been reported to be involved in the tumorigenesis of many types of cancers. However, the impact of netrin-1 on B-ALL remains unknown. METHODS The expression level of netrin-1 in peripheral blood samples of children with B-ALL and children without neoplasia was measured by enzyme-linked immunosorbent assay (ELISA) kits. Then, CCK-8 cell proliferation assays and flow cytometric analysis were performed to detect the viability and apoptosis of B-ALL cells (Reh and Sup B15) treated with exogenous recombinant netrin-1 at concentrations of 0, 25, 50, and 100 ng/ml. Furthermore, co-immunoprecipitation(co-IP) was performed to detect the receptor of netrin-1. UNC5B expression interference was induced in B-ALL cells with recombinant lentivirus, and then CCK-8 assays, flow cytometry assays and western blotting assays were performed to verify that netrin-1 might act on B-ALL cells via the receptor Unc5b. Finally, western blotting and kinase inhibitor treatment were applied to detect the downstream signaling pathway. RESULTS Netrin-1 expression was increased in B-ALL, and netrin-1 expression was upregulated in patients with high- and intermediate-risk stratification group of patients. Then, we found that netrin-1 induced an anti-apoptotic effect in B-ALL cells, implying that netrin-1 plays an oncogenic role in B-ALL. co-IP results showed that netrin-1 interacted with the receptor Unc5b in B-ALL cells. Interference with UNC5B was performed in B-ALL cells and abolished the antiapoptotic effects of netrin-1. Further western blotting was applied to detect the phosphorylation levels of key molecules in common signaling transduction pathways in B-ALL cells treated with recombinant netrin-1, and the FAK-MAPK signaling pathway was found to be activated. The anti-apoptotic effect of netrin-1 and FAK-MAPK phosphorylation was abrogated by UNC5B interference. FAK inhibitor treatment and ERK inhibitor treatment were applied and verified that the FAK-MAPK pathway may be downstream of Unc5b. CONCLUSION Taken together, our findings suggested that netrin-1 induced the anti-apoptotic effect of B-ALL cells through activation of the FAK-MAPK signaling pathway by binding to the receptor Unc5b. Video Abstract.
Collapse
Affiliation(s)
- Lan Huang
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, 136 Zhongshanerlu, Yuzhong district, Chongqing, 400014, China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xizhou An
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, 136 Zhongshanerlu, Yuzhong district, Chongqing, 400014, China
| | - Yao Zhu
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, 136 Zhongshanerlu, Yuzhong district, Chongqing, 400014, China.,Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Kainan Zhang
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, 136 Zhongshanerlu, Yuzhong district, Chongqing, 400014, China.,Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Li Xiao
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, 136 Zhongshanerlu, Yuzhong district, Chongqing, 400014, China
| | - Xinyuan Yao
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, 136 Zhongshanerlu, Yuzhong district, Chongqing, 400014, China
| | - Xing Zeng
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, 136 Zhongshanerlu, Yuzhong district, Chongqing, 400014, China
| | - Shaoyan Liang
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jie Yu
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, 136 Zhongshanerlu, Yuzhong district, Chongqing, 400014, China.
| |
Collapse
|
19
|
Khan H, Kaur Grewal A, Gurjeet Singh T. Mitochondrial dynamics related neurovascular approaches in cerebral ischemic injury. Mitochondrion 2022; 66:54-66. [DOI: 10.1016/j.mito.2022.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/14/2022] [Accepted: 08/02/2022] [Indexed: 12/30/2022]
|
20
|
Downregulation of LINC01857 Increases Sensitivity of Gastric Carcinoma Cells to Cisplatin. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:3325686. [PMID: 35602347 PMCID: PMC9117044 DOI: 10.1155/2022/3325686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/17/2022] [Accepted: 04/07/2022] [Indexed: 12/24/2022]
Abstract
Background The critical roles of long noncoding RNAs (lncRNAs) in the carcinogenesis and progression of cancers have been well documented. It was reported that lncRNAs were involved in chemotherapy resistance in various cancers. This study was aimed at clarifying the role of LINC01857 in cisplatin (DDP) resistance in gastric carcinoma (GC). Methods The Cancer Genome Atlas (TCGA) database was used to analyze the expression of LINC01857 in GC tissues and normal tissues. The expression of LINC01857 in GC cells and DDP-resistant GC cells was detected by qRT-PCR. Cell viability and IC50 value were evaluated using the MTT assay. Moreover, cell apoptosis, migration, and invasion were determined using flow cytometry and Transwell assays, respectively. The expression of apoptosis-related proteins was examined by western blot. Results TCGA database analysis revealed that LINC01857 expression was elevated in GC tissues compared with the normal tissues. qRT-PCR showed that the expression of LINC01857 was significantly higher in DDP-resistant cells than in GC and normal gastric cells. Knockdown of LINC01857 reduced cell viability in DDP-resistant cells. Moreover, LINC01857 downregulation promoted cell apoptosis and inhibited cell migration and invasion in DDP-resistant GC cells. Conclusions LINC01857 was highly expressed in GC. Additionally, LINC01857 knockdown could facilitate the sensitivity to DDP and apoptosis and repressed cell migration and invasion in DDP-resistant GC cells, which provided a novel therapeutic target for chemotherapy resistance of GC in clinical practice.
Collapse
|
21
|
Zhang H, Xie Q, Hu J. Neuroprotective Effect of Physical Activity in Ischemic Stroke: Focus on the Neurovascular Unit. Front Cell Neurosci 2022; 16:860573. [PMID: 35317197 PMCID: PMC8934401 DOI: 10.3389/fncel.2022.860573] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 02/08/2022] [Indexed: 01/03/2023] Open
Abstract
Cerebral ischemia is one of the major diseases associated with death or disability among patients. To date, there is a lack of effective treatments, with the exception of thrombolytic therapy that can be administered during the acute phase of ischemic stroke. Cerebral ischemia can cause a variety of pathological changes, including microvascular basal membrane matrix, endothelial cell activation, and astrocyte adhesion, which may affect signal transduction between the microvessels and neurons. Therefore, researchers put forward the concept of neurovascular unit, including neurons, axons, astrocytes, microvasculature (including endothelial cells, basal membrane matrix, and pericyte), and oligodendrocytes. Numerous studies have demonstrated that exercise can produce protective effects in cerebral ischemia, and that exercise may protect the integrity of the blood-brain barrier, promote neovascularization, reduce neuronal apoptosis, and eventually lead to an improvement in neurological function after cerebral ischemia. In this review, we summarized the potential mechanisms on the effect of exercise on cerebral ischemia, by mainly focusing on the neurovascular unit, with the aim of providing a novel therapeutic strategy for future treatment of cerebral ischemia.
Collapse
Affiliation(s)
- Hui Zhang
- School of Physical Education, Nanchang University, Nanchang, China
| | - Qi Xie
- Inpatient Department, Jiangxi Provincial People’s Hospital, Nanchang, China
| | - Juan Hu
- Yu Quan dao Health Center, Jiangxi Provincial People’s Hospital, Nanchang, China
- *Correspondence: Juan Hu,
| |
Collapse
|
22
|
Wan J, Xiao T. MiR-1224 downregulation inhibits OGD/R-induced hippocampal neuron apoptosis through targeting Ku protein. Metab Brain Dis 2022; 37:531-543. [PMID: 34797485 DOI: 10.1007/s11011-021-00873-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 11/03/2021] [Indexed: 12/14/2022]
Abstract
Ischemic cerebrovascular disease is the main cause of disability due to stroke. This study aimed to investigate the function of miR-1224 in OGD/R-induced hippocampal neuron apoptosis, as well as the regulatory mechanism of miR-1224 in ischemic cerebrovascular disease. The oxygen-glucose deprivation/reperfusion (OGD/R) model of primary mouse hippocampal neurons was established. RT-qPCR detected miR-1224, Ku70 and Ku86 levels. Western blotting was applied to measure the expression of Ku70/86 and apoptosis related proteins. Flow cytometry was used to assess apoptosis. JC-1 fluorescence was performed to test the mitochondrial membrane potential (MMP) in neurons. The double luciferase reporter assay was performed to investigate the relationship between miR-1224 and Ku70/86. OGD/R induced the apoptosis and mitochondrial injury in neuronal cells, while miR-1224 downregulation or Ku70/86 upregulation reversed this phenomenon. Meanwhile, miR-1224 negatively regulated the expression of Ku70/86 in neuronal cells through directly targeting Ku70/86. Furthermore, knockdown of Ku70/86 significantly reversed the inhibitory effect of miR-1224 silencing on apoptosis and mitochondrial injury in OGD/R-treated neuronal cells. Our findings indicated that miR-1224 downregulation suppressed OGD/R-induced hippocampal neuron apoptosis by targeting Ku protein, suggesting that miR-1224 could serve as a new target for ischemic cerebrovascular disease treatment.
Collapse
Affiliation(s)
- Juan Wan
- Department of Neurology, The First Affiliated Hospital, Hengyang Medical School, University of South China, No. 69 Chuanshan Road, Hengyang, 421001, Hunan Province, China
| | - Tao Xiao
- Department of Neurosurgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan Province, China.
| |
Collapse
|
23
|
Bryant JD, Lei Y, VanPortfliet JJ, Winters AD, West AP. Assessing Mitochondrial DNA Release into the Cytosol and Subsequent Activation of Innate Immune-related Pathways in Mammalian Cells. Curr Protoc 2022; 2:e372. [PMID: 35175686 PMCID: PMC8986093 DOI: 10.1002/cpz1.372] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Mitochondria have emerged as key drivers of mammalian innate immune responses, functioning as signaling hubs to trigger inflammation and orchestrating metabolic switches required for phagocyte activation. Mitochondria also contain damage-associated molecular patterns (DAMPs), molecules that share similarity with pathogen-associated molecular patterns (PAMPs) and can engage innate immune sensors to drive inflammation. The aberrant release of mitochondrial DAMPs during cellular stress and injury is an increasingly recognized trigger of inflammatory responses in human diseases. Mitochondrial DNA (mtDNA) is a particularly potent DAMP that engages multiple innate immune sensors, although mounting evidence suggests that cytosolic mtDNA is primarily detected via the cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway. cGAS and STING are widely expressed in mammalian cells and serve as key regulators of type I interferon and cytokine expression in both infectious and inflammatory diseases. Despite growing roles for the mtDNA-cGAS-STING axis in human disease, assays to quantify mtDNA release into the cytosol and approaches to link mtDNA to cGAS-STING signaling are not standardized, which increases the possibility for experimental artifacts and misinterpretation of data. Here, we present a series of protocols for assaying the release of mtDNA into the cytosol and subsequent activation of innate immune signaling in mammalian cells. We highlight genetic and pharmacological approaches to induce and inhibit mtDNA release from mitochondria. We also describe immunofluorescence microscopy and cellular fractionation assays to visualize morphological changes in mtDNA and quantify mtDNA accumulation in the cytosol. Finally, we include protocols to examine mtDNA-dependent cGAS-STING activation by RT-qPCR and western blotting. These methods can be performed with standard laboratory equipment and are highly adaptable to a wide range of mammalian cell types. They will permit researchers working across the spectrum of biological and biomedical sciences to accurately and reproducibly measure cytosolic mtDNA release and resulting innate immune responses. © 2022 Wiley Periodicals LLC. Basic Protocol 1: siRNA-mediated knockdown of TFAM to induce mtDNA instability, cytosolic release, and activation of the cGAS-STING pathway Alternate Protocol: Pharmacological induction of mtDNA release and cGAS-STING activation using ABT-737 and Q-VD-OPH Basic Protocol 2: Isolation and quantitation of DNA from cytosolic, mitochondrial, and nuclear fractions Basic Protocol 3: Pharmacological inhibition of mtDNA replication and release.
Collapse
Affiliation(s)
- Joshua D. Bryant
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX
- These authors contributed equally
| | - Yuanjiu Lei
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX
- These authors contributed equally
| | - Jordyn J. VanPortfliet
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX
| | - Ashley D. Winters
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX
| | - A. Phillip West
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX
| |
Collapse
|
24
|
Xu J, Yu D, Bai X, Zhang P. Long non-coding RNA growth arrest specific transcript 5 acting as a sponge of MicroRNA-188-5p to regulate SMAD family member 2 expression promotes myocardial ischemia-reperfusion injury. Bioengineered 2021; 12:6674-6686. [PMID: 34632932 PMCID: PMC8806717 DOI: 10.1080/21655979.2021.1957524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 02/02/2023] Open
Abstract
The purpose of this work is to probe into the potential role of long non-coding RNA growth arrest specific transcript 5 (lncGAS5)/ microRNA (miR)-188-5p/SMAD2 axis in MIRI. Through ligating the left anterior descending (LAD) coronary artery, MIRI animal model and hypoxia/reoxygenation (H/R) myocardial injury model in vitro were established. Via adenovirus or plasmid transfection, lncGAS5/MiR-188-5p/SMAD2 expression was up-regulated or down-regulated in the study. RT-qPCR was applied to check LncGAS5/MiR-188-5p/SMAD2 mRNA expression, HE staining for histopathological staining, TUNEL staining and flow cytometry to examine cardiomyocyte apoptotic rate, CCK-8 to check cell viability, ELISA to detect inflammatory factor levels, Western blot to examine Bax, Bcl-2, cleaved caspase-3, NF-κB and SMAD2 expression, and dual luciferase reporter experiment to examine the targeting relationship of miR-188-5p with LncGAS5 and SMAD2. The results indicated that LncGAS5 and SMAD2 were highly expressed in MIRI and miR-188-5p was under-expressed. Silencing LncGAS5 and SMAD2 or overexpressing miR-188-5p could reduce MIRI in myocardial tissue, cardiomyocyte apoptosis, inhibit Bax, cleaved caspase-3 and NF-κB expressions and promote Bcl-2 expression, while reducing inflammatory factors TNF -α, IL-1β and IL-6 levels. Overexpressing LncGAS5 promoted MIRI. Additionally, the impact of silencing LncGAS5 on MIRI could be reversed through inhibiting miR-188-5p. LncGAS5 acted as a sponge of miR-188-5p to target SMAD2 expression. In conclusion, Silencing LncGAS5 is available to improve MIRI through regulating miR-188-5p/SMAD2 axis, and may be used as a potential target for treating MIRI in the future.
Collapse
Affiliation(s)
- Jin Xu
- Department of Anesthesiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai City, China
| | - Dong Yu
- Department of Cardiology, Minhang Hospital of Zhongshan Hospital Affiliated to Fudan University (Central Hospital, Minhang District, Shanghai), Shanghai City, China
| | - Xiaolu Bai
- Department of Cardiology, Minhang Hospital of Zhongshan Hospital Affiliated to Fudan University (Central Hospital, Minhang District, Shanghai), Shanghai City, China
| | - Peng Zhang
- Department of Cardiology, Minhang Hospital of Zhongshan Hospital Affiliated to Fudan University (Central Hospital, Minhang District, Shanghai), Shanghai City, China
| |
Collapse
|
25
|
Abstract
The major problems with cancer therapy are drug-induced side effects. There is an urgent need for safe anti-tumor drugs. Artemisinin is a Chinese herbal remedy for malaria with efficacy and safety. However, several studies reported that artemisinin causes neurotoxicity and cardiotoxicity in animal models. Recently, nanostructured drug delivery systems have been designed to improve therapeutic efficacy and reduce toxicity. Artemisinin has been reported to show anticancer properties. The anticancer effects of artemisinin appear to be mediated by inducing cell cycle arrest, promoting ferroptosis and autophagy, inhibiting cell metastasis. Therefore, the review is to concentrate on mechanisms and molecular targets of artemisinin as anti-tumor agents. We believe these will be important topics in realizing the potential of artemisinin and its derivatives as potent anticancer agents.
Collapse
Affiliation(s)
- Dongning Li
- Institute of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - Jie Zhang
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoyan Zhao
- Institute of Pharmaceutical Sciences, Southwest University, Chongqing, China
| |
Collapse
|
26
|
Signaling Nodes Associated with Endoplasmic Reticulum Stress during NAFLD Progression. Biomolecules 2021; 11:biom11020242. [PMID: 33567666 PMCID: PMC7915814 DOI: 10.3390/biom11020242] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/29/2021] [Accepted: 02/04/2021] [Indexed: 12/19/2022] Open
Abstract
Excess and sustained endoplasmic reticulum (ER) stress, paired with a failure of initial adaptive responses, acts as a critical trigger of nonalcoholic fatty liver disease (NAFLD) progression. Unfortunately, there is no drug currently approved for treatment, and the molecular basis of pathogenesis by ER stress remains poorly understood. Classical ER stress pathway molecules have distinct but inter-connected functions and complicated effects at each phase of the disease. Identification of the specific molecular signal mediators of the ER stress-mediated pathogenesis is, therefore, a crucial step in the development of new treatments. These signaling nodes may be specific to the cell type and/or the phase of disease progression. In this review, we highlight the recent advancements in knowledge concerning signaling nodes associated with ER stress and NAFLD progression in various types of liver cells.
Collapse
|
27
|
Behzadipour Y, Hemmati S. Considerations on the Rational Design of Covalently Conjugated Cell-Penetrating Peptides (CPPs) for Intracellular Delivery of Proteins: A Guide to CPP Selection Using Glucarpidase as the Model Cargo Molecule. Molecules 2019; 24:E4318. [PMID: 31779220 PMCID: PMC6930620 DOI: 10.3390/molecules24234318] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/15/2019] [Accepted: 11/16/2019] [Indexed: 12/26/2022] Open
Abstract
Access of proteins to their intracellular targets is limited by a hydrophobic barrier called the cellular membrane. Conjugation with cell-penetrating peptides (CPPs) has been shown to improve protein transduction into the cells. This conjugation can be either covalent or non-covalent, each with its unique pros and cons. The CPP-protein covalent conjugation may result in undesirable structural and functional alterations in the target protein. Therefore, we propose a systematic approach to evaluate different CPPs for covalent conjugations. This guide is presented using the carboxypeptidase G2 (CPG2) enzyme as the target protein. Seventy CPPs -out of 1155- with the highest probability of uptake efficiency were selected. These peptides were then conjugated to the N- or C-terminus of CPG2. Translational efficacy of the conjugates, robustness and thermodynamic properties of the chimera, aggregation possibility, folding rate, backbone flexibility, and aspects of in vivo administration such as protease susceptibility were predicted. The effect of the position of conjugation was evaluated using unpaired t-test (p < 0.05). It was concluded that N-terminal conjugation resulted in higher quality constructs. Seventeen CPP-CPG2/CPG2-CPP constructs were identified as the most promising. Based on this study, the bioinformatics workflow that is presented may be universally applied to any CPP-protein conjugate design.
Collapse
Affiliation(s)
- Yasaman Behzadipour
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71345-1583, Iran;
| | - Shiva Hemmati
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71345-1583, Iran;
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz 71345-1583, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71345-1583, Iran
| |
Collapse
|