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Pang S, Shen Y, Wang Y, Chu X, Ma L, Zhou Y. ROCK1 regulates glycolysis in pancreatic cancer via the c-MYC/PFKFB3 pathway. Biochim Biophys Acta Gen Subj 2024:130669. [PMID: 38996990 DOI: 10.1016/j.bbagen.2024.130669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 06/27/2024] [Accepted: 07/07/2024] [Indexed: 07/14/2024]
Abstract
BACKGROUND Dysregulation of Rho-associated coiled coil-containing protein kinases (ROCKs) is involved in the metastasis and progression of various malignant tumors. However, how one of the isomers, ROCK1, regulates glycolysis in tumor cells is incompletely understood. Here, we attempted to elucidate how ROCK1 influences pancreatic cancer (PC) progression by regulating glycolytic activity. METHODS The biological function of ROCK1 was analyzed in vitro by establishing a silenced cell model. Coimmunoprecipitation confirmed the direct binding between ROCK1 and c-MYC, and a luciferase reporter assay revealed the binding of c-MYC to the promoter of the PFKFB3 gene. These results were verified in animal experiments. RESULTS ROCK1 was highly expressed in PC tissues and enriched in the cytoplasm, and its high expression was associated with a poor prognosis. Silencing ROCK1 inhibited the proliferation and migration of PC cells and promoted their apoptosis. Mechanistically, ROCK1 directly interacted with c-MYC, promoted its phosphorylation (Ser 62) and suppressed its degradation, thereby increasing the transcription of the key glycolysis regulatory factor PFKFB3, enhancing glycolytic activity and promoting PC growth. Silencing ROCK1 increased gemcitabine (GEM) sensitivity in vivo and in vitro. CONCLUSIONS ROCK1 promotes glycolytic activity in PC cells and promotes PC tumor growth through the c-MYC/PFKFB3 signaling pathway. ROCK1 knockdown can inhibit PC tumor growth in vivo and increase the GEM sensitivity of PC tumors, providing a crucial clinical therapeutic strategy for PC.
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Affiliation(s)
- Shuyang Pang
- School of Life Science and Technology, China Pharmaceutical University, 639, Longmian Avenue, Nanjing, Jiangsu 211198, PR China
| | - Yuting Shen
- School of Life Science and Technology, China Pharmaceutical University, 639, Longmian Avenue, Nanjing, Jiangsu 211198, PR China
| | - Yanan Wang
- School of Life Science and Technology, China Pharmaceutical University, 639, Longmian Avenue, Nanjing, Jiangsu 211198, PR China
| | - Xuanning Chu
- School of Life Science and Technology, China Pharmaceutical University, 639, Longmian Avenue, Nanjing, Jiangsu 211198, PR China
| | - Lingman Ma
- School of Life Science and Technology, China Pharmaceutical University, 639, Longmian Avenue, Nanjing, Jiangsu 211198, PR China
| | - Yiran Zhou
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; State Key Laboratory of Oncogenes and Related Genes, Institute of Translational Medicine, Shanghai Jiaotong University, Shanghai 200025, China.
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Bian J, Ge W, Jiang Z. miR-26a-5p Attenuates Oxidative Stress and Inflammation in Diabetic Retinopathy through the USP14/NF- κB Signaling Pathway. J Ophthalmol 2024; 2024:1470898. [PMID: 38282961 PMCID: PMC10817816 DOI: 10.1155/2024/1470898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 12/13/2023] [Accepted: 12/26/2023] [Indexed: 01/30/2024] Open
Abstract
Purpose Diabetic retinopathy (DR) is an ocular disease caused by diabetes and may lead to vision impairment and even blindness. Oxidative stress and inflammation are two key pathogenic factors of DR. Recently, regulatory roles of different microRNAs (miRNAs) in DR have been widely verified. miR-26a-5p has been confirmed to be a potential biomarker of DR. Nevertheless, the specific functions of miR-26a-5p in DR are still unclear. Methods Primary cultured mouse retinal Müller cells in exposure to high glucose (HG) were used to establish an in vitro DR model. Müller cells were identified via morphology observation under phase contrast microscope and fluorescence staining for glutamine synthetase. The in vivo animal models for DR were constructed using streptozotocin-induced diabetic C57BL/6 mice. Western blotting was performed to quantify cytochrome c protein level in the cytoplasm and mitochondria of Müller cells and to measure protein levels of glial fibrillary acidic protein (GFAP), ubiquitin-specific peptidase 14 (USP14), as well as factors associated with NF-κB signaling (p-IκBα, IκBα, p-p65, and p65) in Müller cells or murine retinal tissues. ROS production was detected by CM-H2DCFDA staining, and the concentration of oxidative stress markers (MDA, SOD, and CAT) was estimated by using corresponding commercial kits. Quantification of mRNA expression was conducted by RT-qPCR analysis. The concentration of proinflammatory factors (TNF-α, IL-1β, and IL-6) was evaluated by ELISA. Hematoxylin-eosin staining for murine retinal tissues was performed for histopathological analysis. Immunofluorescence staining was conducted to determine NF-κB p65 nuclear translocation in Müller cells. Furthermore, the interaction between miR-26a-5p and USP14 was verified via the luciferase reporter assays. Results HG stimulation contributed to Müller cell dysfunction by inducing inflammation, oxidative injury, and mitochondrial damage to Müller cells. miR-26a-5p was downregulated in Müller cells under HG condition, and overexpression of miR-26a-5p relieved HG-induced Müller cell dysfunction. Moreover, miR-26a-5p targeted USP14 and inversely regulated USP14 expression. Additionally, HG-evoked activation of NF-κB signaling was suppressed by USP14 knockdown or miR-26a-5p upregulation. Rescue assays showed that the protective impact of miR-26a-5p upregulation against HG-induced Müller cell dysfunction was reversed by USP14 overexpression. Furthermore, USP14 upregulation and activation of NF-κB signaling in the retinas of DR mice were detected in animal experiments. Injection with miR-26a-5p agomir improved retinal histopathological injury and weakened the concentration of proinflammatory cytokines and oxidative stress markers in the retinas of DR mice. Conclusion miR-26a-5p inhibits oxidative stress and inflammation in DR progression by targeting USP14 and inactivating the NF-κB signaling pathway.
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Affiliation(s)
- Jie Bian
- Department of Ophthalmology, Yixing People's Hospital, The Affiliated Hospital of Jiangsu University, Yixing 214200, Jiangsu, China
| | - Weizhong Ge
- Department of Ophthalmology, Yixing People's Hospital, The Affiliated Hospital of Jiangsu University, Yixing 214200, Jiangsu, China
| | - Zhengmei Jiang
- Department of Ophthalmology, Yixing People's Hospital, The Affiliated Hospital of Jiangsu University, Yixing 214200, Jiangsu, China
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Li Q, Xu P, Zhang C, Gao Y. MiR-362-5p inhibits cartilage repair in osteoarthritis via targeting plexin B1. J Orthop Surg (Hong Kong) 2022; 30:10225536221139887. [PMID: 36523183 DOI: 10.1177/10225536221139887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Chondrogenesis of bone marrow mesenchymal stem cells (BMSCs) exerts great function during the pathogenesis of osteoarthritis (OA). Studies have reported the association of plexin B1 (PLXNB1) with OA pathogenesis. In this study, the upstream mechanism and function of PLXNB1 in this disease were explored. METHODS Flow cytometry was applied to test BMSC characterization. Chondrogenic differentiation of BMSCs was evaluated by Alcian blue staining. The expression of PLXNB1, miR-362-5p, miR-501-5p, miR-1827, miR-500-5p was measured using RT-qPCR analysis. The protein levels of PLXNB1, Aggrecan, and Silent information regulator factor 2-related enzyme 1 (SIRT1) were determined by western blotting. Binding relationship between miR-362-5p and PLXNB1 was confirmed using bioinformatics analysis and luciferase reporter assay. The in vivo model of OA was established in Sprague-Dawley rats which received medial meniscus instability surgery. For histopathological examination, cartilage tissues in the knee joint of rats were stained with hematoxylin and eosin. Micro-CT analysis was employed to observe the changes of morphometric indices including average trabecular separation, average trabecular thickness, and bone volume fraction. RESULTS BMSCs were identified to possess the characteristics of mesenchymal stem cells. PLXNB1 was observed to be highly expressed during chondrogenic differentiation of BMSCs and PLXNB1 overexpression promoted BMSC chondrogenic differentiation. Mechanically, PLXNB1 was targeted by miR-362-5p. In rescue assays, miR-362-5p reversed the effects of PLXNB1 on chondrogenic differentiation of BMSCs. In the in vivo experiments, upregulated PLXNB1 expression alleviated joint injury of OA rats. Additionally, overexpressed miR-362-5p and downregulated PLXNB1 expression levels were detected in OA rats. CONCLUSION MiR-362-5p promotes OA progression by suppressing PLXNB1.
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Affiliation(s)
- Qian Li
- Department of Massage, Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Ping Xu
- Department of Orthopedics, Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Chi Zhang
- Department of Massage, Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Yang Gao
- Department of Massage, Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei, China
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Lu Y, Fang L, Xu X, Wu Y, Li J. MicroRNA-142-3p facilitates inflammatory response by targeting ZEB2 and activating NF-κB signaling in gouty arthritis. Cell Cycle 2022; 21:805-819. [PMID: 35239453 PMCID: PMC8973338 DOI: 10.1080/15384101.2022.2031678] [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] [Indexed: 11/03/2022] Open
Abstract
Gouty arthritis (GA) is caused by monosodium urate (MSU) crystal accumulation in the joints. MSU-mediated inflammation is an important inducing factor in gouty arthritis (GA). Recent studies have demonstrated that microRNAs can influence GA progression. Herein, the role and mechanism of miRNA-142-3p in GA were explored. To establish the in vitro and in vivo GA models, MSU was used to induce inflammatory response in human monocyte cell line THP-1 and male C57BL/6 mice. Protein levels, gene expression and proinflammatory cytokine secretion were respectively tested by Western blotting, RT-qPCR, and enzyme-linked immunosorbent assay (ELISA). Pathological changes in sagittal sections of ankle tissues were exhibited by hematoxylin-eosin (HE) staining. Binding relationship between miRNA-142-3p and zinc finger E-box binding homeobox 2 (ZEB2) was predicted and confirmed by bioinformatics analysis and luciferase reporter assay. In this study, MSU induced inflammatory response and upregulated miRNA-142-3p in THP-1 cells. Functionally, miRNA-142-3p knockdown inhibited inflammatory response in MSU-stimulated THP-1 cells and alleviated pathological symptoms of GA mice. Mechanically, miRNA-142-3p targeted ZEB2 in THP-1 cells. ZEB2 expression was elevated in MSU-administrated THP-1 cells and GA mice. ZEB2 downregulation reserved the inhibitory effect of miRNA-142-3p deficiency on inflammatory response in MSU-treated THP-1 cells. In addition, miRNA-142-3p activated NF-κB signaling by binding with ZEB2 in THP-1 cells upon MSU stimulation. Overall, miRNA-142-3p facilitates inflammatory response by targeting ZEB2 and activating NF-κB signaling in GA.
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Affiliation(s)
- Yao Lu
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan 316021, Zhejiang, China
| | - Li Fang
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan 316021, Zhejiang, China
| | - Xiangfeng Xu
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan 316021, Zhejiang, China,CONTACT Xiangfeng Xu Zhoushan Hospital of Zhejiang Province, No.739 Dingshen Road, Lincheng New District, Zhoushan, Zhejiang, China
| | - Yanying Wu
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan 316021, Zhejiang, China
| | - Jiajia Li
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan 316021, Zhejiang, China
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Biological Activity and Stability of Aeruginosamides from Cyanobacteria. Mar Drugs 2022; 20:md20020093. [PMID: 35200623 PMCID: PMC8878463 DOI: 10.3390/md20020093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/17/2022] [Accepted: 01/19/2022] [Indexed: 02/04/2023] Open
Abstract
Aeruginosamides (AEGs) are classified as cyanobactins, ribosomally synthesized peptides with post-translational modifications. They have been identified in cyanobacteria of genera Microcystis, Oscillatoria, and Limnoraphis. In this work, the new data on the in vitro activities of three AEG variants, AEG A, AEG625 and AEG657, and their interactions with metabolic enzymes are reported. Two aeruginosamides, AEG625 and AEG657, decreased the viability of human breast cancer cell line T47D, but neither of the peptides was active against human liver cancer cell line Huh7. AEGs also did not change the expression of MIR92b-3p, but for AEG625, the induction of oxidative stress was observed. In the presence of a liver S9 fraction containing microsomal and cytosolic enzymes, AEG625 and AEG657 showed high stability. In the same assays, quick removal of AEG A was recorded. The peptides had mild activity against three cytochrome P450 enzymes, CYP2C9, CYP2D6 and CYP3A4, but only at the highest concentration used in the study (60 µM). The properties of AEGs, i.e., cytotoxic activity and in vitro interactions with important metabolic enzymes, form a good basis for further studies on their pharmacological potential.
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Jones MR, Pinto E, Torres MA, Dörr F, Mazur-Marzec H, Szubert K, Tartaglione L, Dell'Aversano C, Miles CO, Beach DG, McCarron P, Sivonen K, Fewer DP, Jokela J, Janssen EML. CyanoMetDB, a comprehensive public database of secondary metabolites from cyanobacteria. WATER RESEARCH 2021; 196:117017. [PMID: 33765498 DOI: 10.1016/j.watres.2021.117017] [Citation(s) in RCA: 121] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/26/2021] [Accepted: 03/06/2021] [Indexed: 05/06/2023]
Abstract
Harmful cyanobacterial blooms, which frequently contain toxic secondary metabolites, are reported in aquatic environments around the world. More than two thousand cyanobacterial secondary metabolites have been reported from diverse sources over the past fifty years. A comprehensive, publically-accessible database detailing these secondary metabolites would facilitate research into their occurrence, functions and toxicological risks. To address this need we created CyanoMetDB, a highly curated, flat-file, openly-accessible database of cyanobacterial secondary metabolites collated from 850 peer-reviewed articles published between 1967 and 2020. CyanoMetDB contains 2010 cyanobacterial metabolites and 99 structurally related compounds. This has nearly doubled the number of entries with complete literature metadata and structural composition information compared to previously available open access databases. The dataset includes microcytsins, cyanopeptolins, other depsipeptides, anabaenopeptins, microginins, aeruginosins, cyclamides, cryptophycins, saxitoxins, spumigins, microviridins, and anatoxins among other metabolite classes. A comprehensive database dedicated to cyanobacterial secondary metabolites facilitates: (1) the detection and dereplication of known cyanobacterial toxins and secondary metabolites; (2) the identification of novel natural products from cyanobacteria; (3) research on biosynthesis of cyanobacterial secondary metabolites, including substructure searches; and (4) the investigation of their abundance, persistence, and toxicity in natural environments.
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Affiliation(s)
- Martin R Jones
- Department of Environmental Chemistry, Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Duebendorf, Switzerland
| | - Ernani Pinto
- Centre for Nuclear Energy in Agriculture, University of São Paulo, CEP 13418-260 Piracicaba, SP, Brazil
| | - Mariana A Torres
- School of Pharmaceutical Sciences, University of São Paulo, CEP 05508-900, São Paulo - SP, Brazil
| | - Fabiane Dörr
- School of Pharmaceutical Sciences, University of São Paulo, CEP 05508-900, São Paulo - SP, Brazil
| | - Hanna Mazur-Marzec
- Division of Marine Biotechnology, University of Gdansk, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland
| | - Karolina Szubert
- Division of Marine Biotechnology, University of Gdansk, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland
| | - Luciana Tartaglione
- Department of Pharmacy, School of Medicine and Surgery, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Carmela Dell'Aversano
- Department of Pharmacy, School of Medicine and Surgery, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Christopher O Miles
- Biotoxin Metrology, National Research Council Canada, 1411 Oxford Street, Nova Scotia, Halifax B3H 3Z1, Canada
| | - Daniel G Beach
- Biotoxin Metrology, National Research Council Canada, 1411 Oxford Street, Nova Scotia, Halifax B3H 3Z1, Canada
| | - Pearse McCarron
- Biotoxin Metrology, National Research Council Canada, 1411 Oxford Street, Nova Scotia, Halifax B3H 3Z1, Canada
| | - Kaarina Sivonen
- Department of Microbiology, University of Helsinki, 00014 Helsinki, Finland
| | - David P Fewer
- Department of Microbiology, University of Helsinki, 00014 Helsinki, Finland
| | - Jouni Jokela
- Department of Microbiology, University of Helsinki, 00014 Helsinki, Finland
| | - Elisabeth M-L Janssen
- Department of Environmental Chemistry, Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Duebendorf, Switzerland.
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