51
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Wang L, Peng F, Peng C, Du JR. Gut Microbiota in Tumor Microenvironment: A Critical Regulator in Cancer Initiation and Development as Potential Targets for Chinese Medicine. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2021; 49:609-626. [PMID: 33683187 DOI: 10.1142/s0192415x21500270] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cancer is a disease with a high mortality and disability rate. Cancer consists not only of cancer cells, but also of the surrounding microenvironment and tumor microenvironment (TME) constantly interacting with tumor cells to support tumor development and progression. Over the last decade, accumulating evidence has implicated that microbiota profoundly influences cancer initiation and progression. Most research focuses on gut microbiota, for the gut harbors the largest collection of microorganisms. Gut microbiota includes bacteria, viruses, protozoa, archaea, and fungi in the gastrointestinal tract, affecting DNA damage, host immune response and chronic inflammation in various types of cancer (i.e., colon cancer, gastric cancer and breast cancer). Notably, gut dysbiosis can reshape tumor microenvironment and make it favorable for tumor growth. Recently, accumulating studies have attached the importance of traditional Chinese medicine (TCM) to cancer treatments, and the bioactive natural compounds have been considered as potential drug candidates to suppress cancer initiation and development. Interestingly, more recent studies demonstrate that TCM could potentially prevent and suppress early-stage cancer progression through the regulation of gut microbiota. This review is on the purpose of exhausting the significance of gut microbiota in the tumor microenvironment as potential targets of Chinese medicine.
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Affiliation(s)
- Li Wang
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Fu Peng
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China.,State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Jun-Rong Du
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
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52
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Zheng YL, Wang WD, Li MM, Lin S, Lin HL. Updated Role of Neuropeptide Y in Nicotine-Induced Endothelial Dysfunction and Atherosclerosis. Front Cardiovasc Med 2021; 8:630968. [PMID: 33708805 PMCID: PMC7940677 DOI: 10.3389/fcvm.2021.630968] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 02/03/2021] [Indexed: 12/18/2022] Open
Abstract
Cardiovascular disease is the leading cause of death worldwide. Endothelial dysfunction of the arterial vasculature plays a pivotal role in cardiovascular pathogenesis. Nicotine-induced endothelial dysfunction substantially contributes to the development of arteriosclerotic cardiovascular disease. Nicotine promotes oxidative inflammation, thrombosis, pathological angiogenesis, and vasoconstriction, and induces insulin resistance. However, the exact mechanism through which nicotine induces endothelial dysfunction remains unclear. Neuropeptide Y (NPY) is widely distributed in the central nervous system and peripheral tissues, and it participates in the pathogenesis of atherosclerosis by regulating vasoconstriction, energy metabolism, local plaque inflammatory response, activation and aggregation of platelets, and stress and anxiety-related emotion. Nicotine can increase the expression of NPY, suggesting that NPY is involved in nicotine-induced endothelial dysfunction. Herein, we present an updated review of the possible mechanisms of nicotine-induced atherosclerosis, with a focus on endothelial cell dysfunction associated with nicotine and NPY.
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Affiliation(s)
- Yan-Li Zheng
- Department of Cardiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Wan-da Wang
- Department of Cardiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Mei-Mei Li
- Department of Cardiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Shu Lin
- Department of Cardiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China.,Centre of Neurological and Metabolic Research, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China.,Diabetes and Metabolism Division, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Hui-Li Lin
- Department of Cardiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
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Synthesis and Biological Evaluation of Novel 4-(4-Formamidophenylamino)- N-methylpicolinamide Derivatives as Potential Antitumor Agents. Molecules 2021; 26:molecules26041150. [PMID: 33670007 PMCID: PMC7926825 DOI: 10.3390/molecules26041150] [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: 01/25/2021] [Revised: 02/15/2021] [Accepted: 02/19/2021] [Indexed: 02/05/2023] Open
Abstract
A novel series of 4-(4-formamidophenylamino)-N-methylpicolinamide derivatives were synthesized and evaluated against different tumor cell lines. Experiments in vitro showed that these derivatives could inhibit the proliferation of two kinds of human cancer cell lines (HepG2, HCT116) at low micromolar concentrations and the most potent analog 5q possessed broad-spectrum antiproliferative activity. Experiments in vivo demonstrated that 5q could effectively prolong the longevity of colon carcinoma-burdened mice and slow down the progression of cancer cells by suppression of angiogenesis and the induction of apoptosis and necrosis.
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54
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Liu Y, Zhang Z, Li W, Tian S. PECAM1 Combines With CXCR4 to Trigger Inflammatory Cell Infiltration and Pulpitis Progression Through Activating the NF-κB Signaling Pathway. Front Cell Dev Biol 2021; 8:593653. [PMID: 33425898 PMCID: PMC7786183 DOI: 10.3389/fcell.2020.593653] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/07/2020] [Indexed: 11/13/2022] Open
Abstract
Pulpitis is a frequent bacterially driven inflammation featured with the local accumulation of inflammatory products in human dental pulps. A GEO dataset GSE16134 comprising data of inflamed dental pulp tissues was used for bioinformatics analyses. A protein-protein interaction (PPI) analysis suggested that chemokine receptor 4 (CXCR4) owned a high correlation with platelet endothelial cell adhesion molecule-1 (PECAM1). A rat model with pulpitis was established, and lipopolysaccharide (LPS)-induced human dental pulp fibroblasts (HDPFs) were used for in vitro experiments. Then, high expression of PECAM1 and CXCR4 was validated in the inflamed dental pulp tissues in rats and in LPS-induced HDPFs. Either downregulation of PECAM1 or CXCR4 suppressed inflammatory cell infiltration in inflamed tissues as well as the inflammation and apoptosis of HDPFs. A transcription factor myocyte-enhancer factor 2 (MEF2C) was predicted and validated as a positive regulator of either PECAM1 or CXCR4, which activated the NF-κB signaling pathway and promoted pulpitis progression. To sum up, this study suggested that MEF2C transcriptionally activates PECAM1 and CXCR4 to activate the B-cell and NF-κB signaling pathways, leading to inflammatory cell infiltration and pulpitis progression.
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Affiliation(s)
- Yonghong Liu
- Department of Oral Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhiyong Zhang
- Department of Oral Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wenjing Li
- Department of Oral Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Songbo Tian
- Department of Oral Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
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55
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Xie Z, Wang Y, Yang G, Han J, Zhu L, Li L, Zhang S. The role of the Hippo pathway in the pathogenesis of inflammatory bowel disease. Cell Death Dis 2021; 12:79. [PMID: 33436549 PMCID: PMC7804279 DOI: 10.1038/s41419-021-03395-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/24/2020] [Accepted: 12/28/2020] [Indexed: 01/29/2023]
Abstract
Inflammatory bowel disease (IBD) is a chronic and recurrent inflammatory disorder that primarily comprises Crohn's disease (CD) and ulcerative colitis (UC). Owing to its increasing prevalence in Eastern countries and the intractable challenges faced during IBD treatment, extensive research on IBD has been carried out over the last few years. Although the precise aetiology of IBD is undefined, the currently accepted hypothesis for IBD pathogenesis considers it to be a combination of environment, genetic predisposition, gut microbiota, and abnormal immunity. A recently emerged signalling pathway, the Hippo pathway, acts as a key regulator of cell growth, tissue homoeostasis, organ size, and has been implicated in several human cancers. In the past few years, studies have revealed the importance of the Hippo pathway in gastrointestinal tract physiology and gastrointestinal diseases, such as colorectal cancer and IBD. However, the role of the Hippo pathway and its exact impact in IBD remains to be elucidated. This review summarises the latest scientific literature on the involvement of this pathway in IBD from the following perspectives that account for the IBD pathogenesis: intestinal epithelial cell regeneration, immune regulation, gut microbiota, and angiogenesis. A comprehensive understanding of the specific role of the Hippo pathway in IBD will provide novel insights into future research directions and clinical implications of the Hippo pathway.
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Affiliation(s)
- Zhuo Xie
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Ying Wang
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Guang Yang
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jing Han
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Liguo Zhu
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Li Li
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Shenghong Zhang
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.
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Hou Y, Fan L, Li H. Oncogenic miR-27a delivered by exosomes binds to SFRP1 and promotes angiogenesis in renal clear cell carcinoma. MOLECULAR THERAPY-NUCLEIC ACIDS 2020; 24:92-103. [PMID: 33738141 PMCID: PMC7941030 DOI: 10.1016/j.omtn.2020.11.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 11/20/2020] [Indexed: 12/27/2022]
Abstract
Exosomes derived from cancer cells have emerged as important mediators of malignant phenotypes of tumors, being involved in the transmission of biological signals between cells. Herein, we intended to clarify the role of exosome-mediated transfer of oncogenic microRNA-27a (miR-27a) in angiogenesis of renal clear cell carcinoma (RCCC). Through bioinformatics analysis, we identified the differentially expressed genes of RCCC and predicted miRNAs targeting SFRP1. We manipulated the expression of miR-27a and/or SFRP1 in RCCC cells to explore their roles in angiogenesis through Cell Counting Kit-8 (CCK-8), Transwell, and Matrigel tubule formation assays. miR-27a loaded in exosomes was overexpressed and downregulated in vitro and in vivo to verify its effect on angiogenesis. SFRP1 was poorly expressed and miR-27a was highly expressed in RCCC tissues, showing a negative correlation. Dual-luciferase assay verified that miR-27a targeted and downregulated SFRP1 expression. Notably, miR-27a enhanced angiogenesis by downregulating SFRP1 expression. miR-27a-loaded exosomes can be delivered from RCCC cells to human umbilical vein endothelial cells (HUVECs). In vitro and in vivo experiments substantiated that miR-27a-loaded exosomes from RCCC cells repressed SFRP1, augmenting the viability, migration, and angiogenesis of RCCC cells. Together, RCCC-derived miR-27a-loaded exosomes inhibit SFRP1 expression and accelerate tumor angiogenesis in RCCC.
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Affiliation(s)
- Yi Hou
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun 130000, P.R. China
| | - Li Fan
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun 130000, P.R. China
| | - Hai Li
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun 130000, P.R. China
- Corresponding author: Hai Li, Department of Urology, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Road, Changchun 130000, Jilin Province, P.R. China.
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Wang L, Wang S, Xue A, Shi J, Zheng C, Huang Y. Thalidomide Inhibits Angiogenesis via Downregulation of VEGF and Angiopoietin-2 in Crohn's Disease. Inflammation 2020; 44:795-807. [PMID: 33206273 DOI: 10.1007/s10753-020-01378-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/20/2020] [Accepted: 10/25/2020] [Indexed: 12/14/2022]
Abstract
Immune-mediated angiogenesis is important in the pathogenesis of inflammatory bowel disease and targeted treatment could alleviate the disease. Thalidomide is an effective drug in inflammatory bowel disease, which might be related to its multiple role in anti-inflammatory, immunoregulatory, and anti-angiogenesis. This study is to investigate the effect of thalidomide on angiogenesis in tissues from patients and in vitro cells. Angiopoietin-1 (Ang-1), angiopoietin-2 (Ang-2), VEGF, and CD31 expressions in intestinal mucosa from pediatric CD patients before and after thalidomide treatment were measured by immunohistochemistry. Western blotting and polymerase chain reaction were performed to characterize the change of angiogenic factors before and after treatment in remission. Human umbilical vein endothelial cells (HUVECs) treated by thalidomide were used to examine its effect on endothelial cell proliferation and migration and capillary-like structures. Results showed that VEGF and Ang-2 levels were significantly greater in CD patients over controls. Thalidomide produced a significant reduction in protein expression of Ang-2 and VEGF, along with a decrease in mRNA expression of Ang-2. While, Ang-1 level did not show a statistically significant change. Thalidomide significantly inhibited cell proliferation in a dose-dependent manner. It also suppressed VEGF- and Ang-2-induced cell migration and capillary-like tube formation in HUVECs. Therefore, our study suggests that VEGF and Ang-2 levels are up-regulated in pediatric CD patients. It also indicated that thalidomide can be able to deactivate endothelium by the downregulation effect on angiogenic factors by targeting VEGF and Ang-2.
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Affiliation(s)
- Lin Wang
- Department of Gastroenterology, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai, China
| | - Shengnan Wang
- Department of Gastroenterology, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai, China
| | - Aijuan Xue
- Department of Gastroenterology, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai, China
| | - Jieru Shi
- Department of Gastroenterology, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai, China
| | - Cuifang Zheng
- Department of Gastroenterology, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai, China
| | - Ying Huang
- Department of Gastroenterology, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai, China.
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58
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Wu X, Zhang Y, Chen L, Han Y, Song Y, Cheng H. BTX-A Promotes Expression of Angiogenesis-Associated Genes in Human Umbilical Vein Endothelial Cells. DNA Cell Biol 2020; 39:2154-2165. [PMID: 33181024 DOI: 10.1089/dna.2020.6004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Raynaud's phenomenon (RP) is an episodic vasospasm of the peripheral arteries caused by an exaggerated reaction to cold temperature or emotional stress. Restoring the angiogenesis capability of the acral lesional skin is a critical strategy to treat RP. Local injection of botulinum toxin-A (BTX-A) has also been reported for treatment of RP. However, since the exact mechanisms of BTX-A action are still unclear, its administration for treatment of RP is not widely used. In the present study, BTX-A was found to promote angiogenesis and relieve RP in the patient. To elucidate its mechanisms against angiogenesis, BTX-A was used to treat human umbilical vein endothelial cells (HUVECs), one of the most popular in vitro models of angiogenesis, and RNA sequencing was used to investigate differentially expressed genes. A total of 413 genes were upregulated, and 1634 were downregulated, with fold-changes >2.0 in HUVECs treated with BTX-A. Gene ontology annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis showed BTX-A affected expression of angiogenesis-associated, angiogenesis-associated signaling pathway-related, metabolic pathway, and epigenetic regulation-related genes. These results demonstrate potential biomarkers of BTX-A action, thereby providing potential therapeutic mechanism(s) by which BTX-A relieves RP symptoms.
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Affiliation(s)
- Xia Wu
- Department of Dermatology and Venereology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, P.R. China
| | - Yu Zhang
- Department of Dermatology and Venereology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, P.R. China
| | - Luxia Chen
- Department of Dermatology and Venereology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, P.R. China
| | - Yongmei Han
- Department of Dermatology and Venereology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, P.R. China
| | - Yinjing Song
- Department of Dermatology and Venereology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, P.R. China
| | - Hao Cheng
- Department of Dermatology and Venereology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, P.R. China
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59
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Zhuang H, Wang H, Yang H, Li H. Exosome-Encapsulated MicroRNA-21 from Esophageal Squamous Cell Carcinoma Cells Enhances Angiogenesis of Human Umbilical Venous Endothelial Cells by Targeting SPRY1. Cancer Manag Res 2020; 12:10651-10667. [PMID: 33149673 PMCID: PMC7604463 DOI: 10.2147/cmar.s259077] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/05/2020] [Indexed: 12/12/2022] Open
Abstract
Objective Esophageal squamous cell carcinoma (ESCC) persists among the most prevalent cancers worldwide. Angiogenesis represents a crucial element necessitated for tumor growth and metastasis in ESCC. In this study, we aimed to study the effect of microRNA (miR)-21 on angiogenesis in ESCC and its underlying mechanism. Materials and Methods Initially, the expression patterns of miR-21, SPRY1, and VEGF were determined in ESCC tissues and cells. The relationship between miR-21 and SPRY1 was identified using dual-luciferase reporter assay. Exosomes were subsequently isolated from the ESCC cells, followed by co-culture with the human umbilical venous endothelial cells (HUVECs). HUVEC proliferation and angiogenesis were determined by means of CCK-8, colony formation, and microtubule formation in vitro. Chicken chorioallantoic membrane (CAM) model and mouse xenograft model of ESCC cells were established to substantiate the function of miR-21 corresponding to the angiogenesis and tumor growth of ESCC, followed by microvascular density (MVD) evaluation. Results Expression patterns of miR-21 and VEGF were elevated, while the SPRY1 expression pattern was repressed in ESCC tissues and cells. The downregulation of miR-21 and exosome-derived miR-21 impeded the proliferation and angiogenesis in HUVECs. Our data revealed that miR-21 could negatively target SPRY1, and positively target VEGF. The downregulation of miR-21 could evidently encumber the angiogenesis and tumor growth of ESCC in vivo, as evidenced by the decrease in number of branches of the microvessels and MVD. Conclusion Collectively, ESCC cell-derived exosome containing miR-21 promotes the proliferation and angiogenesis of HUVECs via SPRY1 downregulation and VEGF upregulation.
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Affiliation(s)
- Huirong Zhuang
- Operating Room, East Medical District of Linyi People's Hospital, Linyi 276034, People's Republic of China
| | - Hongjun Wang
- Department of Occupational Disease, Linyi People's Hospital, Linyi 276000, People's Republic of China
| | - Haibo Yang
- Department of Occupational Disease, Linyi People's Hospital, Linyi 276000, People's Republic of China
| | - Hongli Li
- Operating Room, East Medical District of Linyi People's Hospital, Linyi 276034, People's Republic of China
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Lemoine L, Dieckmann R, Al Dahouk S, Vincze S, Luch A, Tralau T. Microbially competent 3D skin: a test system that reveals insight into host-microbe interactions and their potential toxicological impact. Arch Toxicol 2020; 94:3487-3502. [PMID: 32681188 PMCID: PMC7502063 DOI: 10.1007/s00204-020-02841-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 07/09/2020] [Indexed: 02/06/2023]
Abstract
The skin`s microbiome is predominantly commensalic, harbouring a metabolic potential far exceeding that of its host. While there is clear evidence that bacteria-dependent metabolism of pollutants modulates the toxicity for the host there is still a lack of models for investigating causality of microbiome-associated pathophysiology or toxicity. We now report on a biologically characterised microbial-skin tissue co-culture that allows studying microbe-host interactions for extended periods of time in situ. The system is based on a commercially available 3D skin model. In a proof-of-concept, this model was colonised with single and mixed cultures of two selected skin commensals. Two different methods were used to quantify the bacteria on the surface of the skin models. While Micrococcus luteus established a stable microbial-skin tissue co-culture, Pseudomonas oleovorans maintained slow continuous growth over the 8-day cultivation period. A detailed skin transcriptome analysis showed bacterial colonisation leading to up to 3318 significant changes. Additionally, FACS, ELISA and Western blot analyses were carried out to analyse secretion of cytokines and growth factors. Changes found in colonised skin varied depending on the bacterial species used and comprised immunomodulatory functions, such as secretion of IL-1α/β, Il-6, antimicrobial peptides and increased gene transcription of IL-10 and TLR2. The colonisation also influenced the secretion of growth factors such as VFGFA and FGF2. Notably, many of these changes have already previously been associated with the presence of skin commensals. Concomitantly, the model gained first insights on the microbiome's influence on skin xenobiotic metabolism (i.e., CYP1A1, CYP1B1 and CYP2D6) and olfactory receptor expression. The system provides urgently needed experimental access for assessing the toxicological impact of microbiome-associated xenobiotic metabolism in situ.
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Affiliation(s)
- Lisa Lemoine
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany.
- Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany.
| | - Ralf Dieckmann
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Sascha Al Dahouk
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Szilvia Vincze
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
- Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Tewes Tralau
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
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61
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Yuan W, Hai B, Ren X, Zhu J, Zhang C, Guan Z, Jia J, Wang H, Cao B, Song C. Single-dose local intraosseous injection of simvastatin suppresses breast cancer with tumor vascular normalization. Transl Oncol 2020; 13:100867. [PMID: 32950929 PMCID: PMC7509234 DOI: 10.1016/j.tranon.2020.100867] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 12/23/2022] Open
Abstract
Tumor vessels play important roles in cancer development and angiogenesis has been characterized as an essential process for tumor cell tumor growth. Our previous studies found that a single-dose local intraosseous simvastatin injection rapidly and long-termly mobilized bone marrow-derived endothelial progenitor cells to peripheral blood, promoting angiogenesis and ameliorating ischemia injury. However, whether intraosseous injection of simvastatin participates in cancer progression and the role of angiogenesis enhancement in this process remain unknown. In this study, we found that intraosseous injection of simvastatin improves tumor vascular structure, along with increasing the percentage of pericyte coverage on tumor vessels, and reducing vascular permeability, tumor hypoxia and tumor necrosis. Further, we demonstrate that a single-dose local intraosseous simvastatin injection suppresses tumor growth, facilitates sensitivity of chemotherapy and prolongs survival in breast cancer-bearing mice. In addition, oral application, intravenous, subcutaneous and intraperitoneal injection of simvastatin do not show these effects. Taken together, these results demonstrate that intraosseous injection of simvastatin suppresses breast cancer with tumor vascular normalization, which might be a promising strategy for cancer treatment.
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Affiliation(s)
- Wanqiong Yuan
- Department of Orthopedics, Peking University Third Hospital, Beijing Key Laboratory of Spinal Disease, Beijing, China.
| | - Bao Hai
- Department of Orthopedics, Peking University Third Hospital, Beijing Key Laboratory of Spinal Disease, Beijing, China.
| | - Xiaoqing Ren
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Junxiong Zhu
- Department of Orthopedics, Peking University Third Hospital, Beijing Key Laboratory of Spinal Disease, Beijing, China.
| | - Chenggui Zhang
- Department of Orthopedics, Peking University Third Hospital, Beijing Key Laboratory of Spinal Disease, Beijing, China.
| | - Zhiyuan Guan
- Department of Orthopedics, Peking University Third Hospital, Beijing Key Laboratory of Spinal Disease, Beijing, China.
| | - Jialin Jia
- Department of Orthopedics, Peking University Third Hospital, Beijing Key Laboratory of Spinal Disease, Beijing, China.
| | - Hong Wang
- Department of Orthopedics, Peking University Third Hospital, Beijing Key Laboratory of Spinal Disease, Beijing, China
| | - Baoshan Cao
- Department of Tumor Chemotherapy and Radiation Sickness, Peking University Third Hospital, Beijing, China
| | - Chunli Song
- Department of Orthopedics, Peking University Third Hospital, Beijing Key Laboratory of Spinal Disease, Beijing, China.
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62
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Wu X, Zhou J, Li D. Orientation of the Mitotic Spindle in Blood Vessel Development. Front Cell Dev Biol 2020; 8:583325. [PMID: 33072763 PMCID: PMC7533553 DOI: 10.3389/fcell.2020.583325] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/01/2020] [Indexed: 12/21/2022] Open
Abstract
Angiogenesis requires coordinated endothelial cell specification, proliferation, and collective migration. The orientation of endothelial cell division is tightly regulated during the earliest stages of blood vessel formation in response to morphogenetic cues and the controlled orientation of the mitotic spindle. Consequently, oriented cell division is a vital mechanism in vessel morphogenesis, and defective spindle orientation can perturb the spatial arrangement of daughter cells and consequently contribute to several diseases related to vascular development. Many factors affect endothelial cell proliferation and orientation and therefore blood vessel formation, with the relationship between improper spindle orientation in endothelial cells and various diseases extensively studied. Here we review the molecular mechanisms driving the orientation of endothelial cell division, particularly with respect to the mitotic spindle, and how these processes affect vascular development, disease pathogenesis, and their potential as novel targets.
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Affiliation(s)
- Xuemei Wu
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Jun Zhou
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China.,Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Institute of Biomedical Sciences, Shandong Normal University, Jinan, China
| | - Dengwen Li
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
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Lai K, Li Y, Gong Y, Li L, Huang C, Xu F, Zhong X, Jin C. Triptolide-nanoliposome-APRPG, a novel sustained-release drug delivery system targeting vascular endothelial cells, enhances the inhibitory effects of triptolide on laser-induced choroidal neovascularization. Biomed Pharmacother 2020; 131:110737. [PMID: 32932044 DOI: 10.1016/j.biopha.2020.110737] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/01/2020] [Accepted: 09/07/2020] [Indexed: 12/21/2022] Open
Abstract
PURPOSE To investigate whether triptolide-nanoliposome-APRPG (TP-nanolip-APRPG), a novel sustained-release nano-drug delivery system that targets vascular endothelial cells, could enhance the inhibition of triptolide (TP) on laser-induced choroidal neovascularization (CNV). METHODS TP was encapsulated with or without APRPG (Ala-Pro-Arg-Pro-Gly) peptide-modified nanoliposomes. CNV was induced by laser photocoagulation in C57BL/6J mice. One microliter of 10 μg free TP monomer, TP-nanolip containing 10 μg TP, TP-nanolip-APRPG containing 10 μg TP, or an identical volume of PBS was intravitreally injected in mice immediately after laser photocoagulation. Seven days after laser photocoagulation, CNV volumes were calculated in each group. Infiltration of M2 macrophages as well as protein levels of vascular endothelial growth factor (VEGF) and inflammatory factors including ICAM-1 and MCP-1 in the RPE-choroid complex were determined. In vitro assays for cell proliferation, migration, and tube formation were also performed. RESULTS TP-nanolip-APRPG was successfully synthesized and exhibited good TP delivery and enhanced the cellular uptake of TP in vitro. In vitro studies showed that TP-nanolip-APRPG was a better inhibitor of cell proliferation (31.34 ± 3.89 % vs 41.25 ± 4.67 % vs 53.55 ± 5.76 %), migration (62.60 ± 8.88 vs 104.60 ± 13.32 vs 147.00 ± 13.15), and tube formation (681.26 ± 108.15 vs 926.75 ± 54.01 vs 1189.84 ± 157.14) than TP-nanolip or free TP (all P < 0.05). Intravitreal injections of free TP (77588.10±7719.28 μm3), TP-nanolip (64628.23 ± 5857.96 μm3), and TP-nanolip-APRPG (50880.34 ± 6606.56 μm3) inhibited the development of CNV compared with the PBS control group (120338.07 ± 17428.90 μm3) (P < 0.01, n=6). TP-nanolip-APRPG and TP-nanolip significantly down-regulated the protein levels of VEGF (152.76±19.55 vs 182.24±19.98 vs 208.55±21.93 pg/mg total protein) and inflammatory factors including ICAM-1 (61.69±3.49 vs 72.04±3.49 vs 81.92±4.09 ng/mg total protein) and MCP-1 (40.14±3.50 vs 50.75±4.18 vs 60.27±5.23 pg/mg total protein) compared with the free TP monomer group (all P < 0.05, n=8), which paralleled the decreased infiltration of M2 macrophages in the CNV lesions. Moreover, no influence on retinal morphology and function was observed before or after treatment in each group (P > 0.05, n=6). CONCLUSIONS TP-nanolip-APRPG, a novel sustained-release drug delivery system targeting endothelial cells of CNV lesions, could enhance TP inhibition of the development of CNV without toxicity in the retina, suggesting therapeutic potential for CNV-related diseases in future clinical practice.
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Affiliation(s)
- Kunbei Lai
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Yingqin Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Yajun Gong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Longhui Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Chuangxin Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Fabao Xu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Xiaojing Zhong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China
| | - Chenjin Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, China.
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MiR-145-5p suppresses the proliferation, migration and invasion of gastric cancer epithelial cells via the ANGPT2/NOD_LIKE_RECEPTOR axis. Cancer Cell Int 2020; 20:416. [PMID: 32874130 PMCID: PMC7456024 DOI: 10.1186/s12935-020-01483-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 02/06/2023] Open
Abstract
Objective This study aimed to investigate the relationship among miR-145-5p, ANGPT2 and the NOD_LIKE_RECEPTOR pathway, thereby revealing the molecular mechanism of these three factors underlying the proliferation, migration and invasion of gastric cancer (GC) epithelial cells. Methods qRT-PCR was carried out to detect the expression of miR-145-5p and ANGPT2 mRNA. Western blot was performed to test the protein levels of ANGPT2 as well as NOD1, NOD2 and NF-κB in the NOD_LIKE_RECEPTOR pathway. The targeting relationship between miR-145-5p and ANGPT2 was verified via a dual-luciferase reporter gene assay. The proliferation, migration and invasion of GC cells were detected through MTT and Transwell assays, respectively. Results The expression of miR-145-5p was significantly down-regulated in GC cells, while that of ANGPT2 was notably up-regulated. MiR-145-5p directly bound with the 3′-UTR of ANGPT2 mRNA, thereby targeting ANGPT2 after transcription. Overexpression of miR-145-5p inhibited the proliferation, migration and invasion of GC cells by suppressing ANGPT2. Moreover, low expression of ANGPT2 affected the protein levels of NOD1, NOD2 and NF-κB in the NOD_LIKE_RECEPTOR pathway, thus weakening the abilities of cell proliferation, migration and invasion. Conclusions MiR-145-5p plays an important role in GC epithelial cells, and it can affect cell proliferation, migration and invasion of GC cells by targeting ANGPT2 and regulating the NOD_LIKE_RECEPTOR pathway. Overall, our study further elucidates the molecular mechanism underlying the malignant progression of GC.
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Lv S, Cai H, Xu Y, Dai J, Rong X, Zheng L. Thymosin‑β 4 induces angiogenesis in critical limb ischemia mice via regulating Notch/NF‑κB pathway. Int J Mol Med 2020; 46:1347-1358. [PMID: 32945357 PMCID: PMC7447324 DOI: 10.3892/ijmm.2020.4701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 06/22/2020] [Indexed: 12/24/2022] Open
Abstract
Thymosin‑β 4 (Tβ4) has been reported to exert a pro‑angogenic effect on endothelial cells. However, little is known on the role and underlying mechanisms of Tβ4 on critical limb ischemia (CLI). The present study aimed therefore to investigate the mechanisms and pro‑angiogenic effects of Tβ4 in CLI mice. Tβ4 overexpression lentiviral vector was first transfected into HUVEC and CLI mice model, and inhibitors of Notch pathway (DAPT) and NF‑κB pathway (BMS) were also applied to HUVEC and CLI mice. Subsequently, MTT, tube formation and wound healing assays were used to determine the cell viability, angiogenesis and migratory ablity of HUVEC, respectively. Western blotting, reverse transcription, quantitative PCR, immunofluorescence and immunohistochemistry were used to detect the expression of the angiogenesis‑related factors angiopoietin‑2 (Ang2), TEK receptor tyrosine kinase 2 (tie2), vascular endothelial growth factor A (VEGFA), CD31 and α‑smooth muscle actin (α‑SMA) and the Notch/NF‑κB pathways‑related factors NOTCH1 intracellular domain (N1ICD), Notch receptor 3 (Notch3), NF‑κB and p65 in HUVEC or CLI mice muscle tissues. The results demonstrated that Tβ4 not only enhanced the cell viability, angiogenesis and migratory ability of HUVEC but also promoted the expression of Ang2, tie2, VEGFA, N1ICD, Notch3, NF‑κB, and phosphorylated (p)‑p65 in HUVEC. In addition, Tβ4 promoted the expression of CD31, α‑SMA Ang2, tie2, VEGFA, N1ICD and p‑p65 in CLI mice muscle tissues. Treatment with DAPT and BMS had opposite effects of Tβ4, whereas Tβ4 reversed the effect of DAPT and BMS. The findings from the present study suggested that Tβ4 may promote angiogenesis in CLI mice via regulation of Notch/NF‑κB pathways.
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Affiliation(s)
- Shumin Lv
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Hongwen Cai
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Yifei Xu
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Jin Dai
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Xiqing Rong
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Lanzhi Zheng
- Department of Emergency Internal Medicine, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
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Wang J, Zhu P, Toan S, Li R, Ren J, Zhou H. Pum2-Mff axis fine-tunes mitochondrial quality control in acute ischemic kidney injury. Cell Biol Toxicol 2020; 36:365-378. [PMID: 31993882 DOI: 10.1007/s10565-020-09513-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 01/24/2020] [Indexed: 12/31/2022]
Abstract
Mitochondrial fission factor (Mff) has been demonstrated to play a role in the activation of mitochondrial cleavage and mitochondrial death, denoting its role in the regulation of mitochondrial quality control. Recent evidence suggested that the mRNA translation of Mff is under the negative regulation by the RNA-binding protein Pumilio2 (Pum2). This study was designed to examine the role of Pum2 and Mff in the governance of mitochondrial quality control in a murine model of acute ischemic kidney injury. Our results indicated that genetic deletion of Mff overtly attenuated ischemic acute kidney injury (AKI)-induced renal failure through inhibition of pro-inflammatory response, tubular oxidative stress, and ultimately cell death in the kidney. Furthermore, Mff inhibition effectively preserved mitochondrial homeostasis through amelioration of mitochondrial mitosis, restoration of Sirt1/3 expression, and boost of mitochondrial respiration. Western blot analysis revealed that levels of Pum2 were significantly downregulated by ischemic AKI, inversely coinciding with levels of Mff. Overexpression of Pum2 reduced ischemic AKI-mediated Mff upregulation and offered protection on renal tubules through modulation of mitochondrial quality control. Taken together, our data have unveiled the molecular mechanism of the Pum2-Mff axis in mitochondrial quality control in a mouse model of ischemic AKI. These data indicated the therapeutic potential of Pum2 activation and Mff inhibition in the management of ischemic AKI.
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Affiliation(s)
- Jin Wang
- Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing, China
| | - Pingjun Zhu
- Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing, China
| | - Sam Toan
- Department of Chemical Engineering, University of Minnesota-Duluth, Duluth, MN, 55812, USA
| | - Ruibing Li
- Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing, China
| | - Jun Ren
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming, Laramie, WY, 82071, USA.
| | - Hao Zhou
- Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing, China.
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming, Laramie, WY, 82071, USA.
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Melatonin-Mediated Pak2 Activation Reduces Cardiomyocyte Death Through Suppressing Hypoxia Reoxygenation Injury-Induced Endoplasmic Reticulum Stress. J Cardiovasc Pharmacol 2020; 74:20-29. [PMID: 31274839 DOI: 10.1097/fjc.0000000000000678] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cardiac reperfusion injury has been found to be associated with endoplasmic reticulum (ER) stress. Recently, p21-activated kinase 2 (Pak2) has been identified as a primary mediator of ER stress in chronic myocardial injury. Melatonin, a biological clock-related hormone, has been demonstrated to attenuate heart reperfusion burden by modulating ER stress and mitochondrial function. The aim of our study was to explore whether reperfusion-induced ER stress is modulated by melatonin through Pak2. Hypoxia reoxygenation (HR) was used in vitro to mimic reperfusion injury in cardiomyocytes. ER stress, oxidative stress, calcium overload, and cell death were measured through Western blotting, enzyme-linked immunosorbent assay, quantitative polymerase chain reaction, and immunofluorescence with the assistance of siRNA transfection and pathway blocker treatment. The results of our study demonstrated that HR decreased the levels of Pak2 in cardiomyocytes in vitro, and inactivation of Pak2 was associated with ER stress, oxidative stress, calcium overload, caspase-12 activation, and cardiomyocytes apoptosis in vitro. Interestingly, melatonin treatment attenuated HR-mediated ER stress, redox imbalance, calcium overload, and caspase-12-related cardiomyocytes apoptosis, and these protective effects were dependent on Pak2 upregulation. Knockdown of Pak2 abolished the beneficial actions exerted by melatonin on HR-treated cardiomyocytes in vitro. Finally, we found that melatonin reversed Pak2 expression by activating the AMPK pathway and blockade of the AMPK pathway suppressed Pak2 upregulation and cardiomyocytes survival induced by melatonin in the presence of HR stress. Overall, our study reports that the AMPK-Pak2 axis, a novel signaling pathway modulated by melatonin, sends prosurvival signals for cardiomyocytes reperfusion injury through attenuation of ER stress in vitro.
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Zhu H, Zhao M, Chen Y, Li D. Bcl-2-associated athanogene 5 overexpression attenuates catecholamine-induced vascular endothelial cell apoptosis. J Cell Physiol 2020; 236:946-957. [PMID: 32583430 DOI: 10.1002/jcp.29904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 04/12/2020] [Accepted: 06/11/2020] [Indexed: 02/06/2023]
Abstract
Bcl-2 associated athanogene 5 (Bag5) is a novel endoplasmic reticulum (ER) regulator. However, its role in catecholamine-induced endothelial cells damage has not been fully understood. In our study, catecholamine was used to mimic hypertension-related endothelial cell damage. Then, western blots, enzyme-linked immunosorbent assay, immunofluorescence, quantitative polymerase chain reaction and pathway analysis were conducted to analyze the role of Bag5 in endothelial cell damage in response to catecholamine. Our results indicated that the endothelial cell viability was impaired by catecholamine. Interestingly, Bag5 overexpression significantly reversed endothelial cell viability. Mechanistically, Bag5 overexpression inhibited ER stress, attenuated oxidative stress and repressed inflammation in catecholamine-treated endothelial cells. These beneficial effects finally contributed to endothelial cell survival under catecholamine treatment. Pathway analysis demonstrated that Bag5 was under the control of the mitogen-activated protein kinase (MAPK)-extracellular-signal-regulated kinase (ERK) signaling pathway. Reactivation of the MAPK-ERK pathway could upregulate Bag5 expression and thus promote endothelial cell survival through inhibiting oxidative stress, ER stress, and inflammation. Altogether, our results illustrate that Bag5 overexpression sustains endothelial cell survival in response to catecholamine treatment. This finding identifies Bag5 downregulation and the inactivated MAPK-ERK pathway as potential mechanisms underlying catecholamine-induced endothelial cell damage.
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Affiliation(s)
- Hang Zhu
- Department of Cardiology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Maoxiang Zhao
- Department of Cardiology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yundai Chen
- Department of Cardiology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Dandan Li
- Department of Cardiology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
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Li J, Li Z, Wang C, Li Z, Xu H, Hu Y, Tan Z, Zhang F, Liu C, Yang M, Wang Y, Jin Y, Peng Z, Biswas S, Zhu L. The Regulatory Effect of VEGF-Ax on Rat Bone Marrow Mesenchymal Stem Cells' Angioblastic Differentiation and Its Proangiogenic Ability. Stem Cells Dev 2020; 29:667-677. [PMID: 32079499 DOI: 10.1089/scd.2019.0198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jianjun Li
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhihao Li
- Department of Spinal Surgery, Jingzhou Central Hospital, Jingzhou, China
| | - Chengqiang Wang
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhijia Li
- Department of Dermatology and Venereology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haixia Xu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yunteng Hu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiwen Tan
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Fu Zhang
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Chun Liu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Minsheng Yang
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yihan Wang
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yanglei Jin
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Ziyue Peng
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Sourabh Biswas
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Lixin Zhu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Lei X, Zhong Y, Huang L, Li S, Fu J, Zhang L, Zhang Y, Deng Q, Yu X. Identification of a novel tumor angiogenesis inhibitor targeting Shh/Gli1 signaling pathway in Non-small cell lung cancer. Cell Death Dis 2020; 11:232. [PMID: 32286274 PMCID: PMC7156472 DOI: 10.1038/s41419-020-2425-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 02/02/2023]
Abstract
Although angiogenesis inhibitors targeting VEGF/VEGFR2 have been applied for tumor therapy, the outcomes are still unsatisfactory. Thus, it is urgent to develop novel angiogenesis inhibitor for cancer therapy from new perspectives. Identification of novel angiogenesis inhibitor from natural products is believed to be one of most promising strategy. In this study, we showed that pristimerin, an active agent isolated from traditional Chinese herbal medicine Celastrus aculeatus Merr, was a novel tumor angiogenesis inhibitor that targeting sonic hedgehog (Shh)/glioma associated oncogene 1 (Gli1) signaling pathway in non-small cell lung cancer (NSCLC). We showed that pristimerin affected both the early- and late-stage of angiogenesis, suggesting by that pristimerin inhibited Shh-induced endothelial cells proliferation, migration, invasion as well as pericytes recruitment to the endothelial tubes, which is critical for the new blood vessel maturation. It also suppressed tube formation, vessel sprouts formation and neovascularization in chicken embryo chorioallantoic membrane (CAM). Moreover, it significantly decreased microvessel density (MVD) and pericyte coverage in NCI-H1299 xenografts, resulting in tumor growth inhibition. Further research revealed that pristimerin suppressed tumor angiogenesis by inhibiting the nucleus distribution of Gli1, leading to inactivation of Shh/Gli1 and its downstream signaling pathway. Taken together, our study showed that pristimerin was a promising novel anti-angiogenic agent for the NSCLC therapy and targeting Shh/Gli1 signaling pathway was an effective approach to suppress tumor angiogenesis.
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Affiliation(s)
- Xueping Lei
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Yihang Zhong
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Lijuan Huang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Songpei Li
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Jijun Fu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Lingmin Zhang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Yu Zhang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Qiudi Deng
- GMU-GIBH Joint School of Life Sciences & the Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Xiyong Yu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China.
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Liang W, Wang X, Yu X, Zuo Y, Cheng K, Yang M. Dynamin-related protein-1 promotes lung cancer A549 cells apoptosis through the F-actin/bax signaling pathway. J Recept Signal Transduct Res 2020; 40:419-425. [PMID: 32249652 DOI: 10.1080/10799893.2020.1747491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Dynamin-related protein-1 (Drp1) has been found to be associated with cell death. The role of Drp1 in A549 cells death has not been explored. In this study, adenovirus-mediated Drp1 overexpression was used to investigate the influence of Drp1 on A549 cell viability with a focus on F-actin and Bax. Cell viability, protein expression, oxygen consumption, energy metabolism, and growth rate were measured through ELISA, qPCR, western blots and pathway analysis. Our results indicated that Drp1 overexpression promoted A549 cell death through apoptosis. Mechanistically, cytoskeletal F-actin was impaired and Bax expression was elevated in response to Drp1 overexpression. Besides, energy metabolism was reduced and oxygen consumption was interrupted. Therefore, our results demonstrated that A549 cell viability, apoptosis and growth were regulated by the Drp1/F-actin/Bax signaling pathways. These data explain a new role played by Drp1 in regulating cell viability and also provide a potential target to affect the progression of lung cancer through induction of cell death.
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Affiliation(s)
- Wenjun Liang
- Department of Respiratory Medicine, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, PR China
| | - Xiaohua Wang
- Department of Respiratory Medicine, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, PR China
| | - Xiaowei Yu
- Department of Respiratory Medicine, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, PR China
| | - Yijun Zuo
- Department of Respiratory Medicine, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, PR China
| | - Kewei Cheng
- Department of Respiratory Medicine, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, PR China
| | - Mingxia Yang
- Department of Respiratory Medicine, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, PR China
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Wang J, Toan S, Zhou H. Mitochondrial quality control in cardiac microvascular ischemia-reperfusion injury: New insights into the mechanisms and therapeutic potentials. Pharmacol Res 2020; 156:104771. [PMID: 32234339 DOI: 10.1016/j.phrs.2020.104771] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 03/13/2020] [Accepted: 03/19/2020] [Indexed: 12/17/2022]
Abstract
Thrombolytic therapy and revascularization strategies create a complete recanalization of the occluded epicardial coronary artery in patients with myocardial infarction (MI). However, about 35 % of patients still experience an impaired myocardial reperfusion, which is termed a no-reflow phenomenon mainly caused by cardiac microvascular ischemia-reperfusion (I/R) injury. Mitochondria are essential for microvascular endothelial cells' survival, both because of their roles as metabolic energy producers and as regulators of programmed cell death. Mitochondrial structure and function are regulated by a mitochondrial quality control (MQC) system, a series of processes including mitochondrial biogenesis, mitochondrial dynamics/mitophagy, mitochondrial proteostasis, and mitochondria-mediated cell death. Our review discusses the MQC mechanisms and how they are linked to cardiac microvascular I/R injury. Additionally, we will summarize the molecular basis that results in defective MQC mechanisms and present potential therapeutic interventions for improving MQC in cardiac microvascular I/R injury.
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Affiliation(s)
- Jin Wang
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing 100853, China
| | - Sam Toan
- Department of Chemical Engineering, University of Minnesota-Duluth, Duluth, MN 55812, USA
| | - Hao Zhou
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing 100853, China.
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Cui L, Liang J, Liu H, Zhang K, Li J. Nanomaterials for Angiogenesis in Skin Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2020; 26:203-216. [PMID: 31964266 DOI: 10.1089/ten.teb.2019.0337] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Damage to skin tissue, which causes the disorder of the patient's body homeostasis, threatens the patient's life and increases the personal and social treatment burden. Angiogenesis, a key step in the wound healing process, provides sufficient oxygen and nutrients to the wound area. However, traditional clinical interventions are not enough to stabilize the formation of the vascular system to support wound healing. Due to the unique properties and multiple functions of nanomaterials, it has made a major breakthrough in the application of medicine. Nanomaterials provide a more effective treatment to hasten the angiogenesis and wound healing, by stimulating fundamental factors in the vascular regeneration phase. In the present review article, the basic stages and molecular mechanisms of angiogenesis are analyzed, and the types, applications, and prospects of nanomaterials used in angiogenesis are detailed. Impact statement Wound healing (especially chronic wounds) is currently a clinically important issue. The long-term nonhealing of chronic wounds often plagues patients, medical systems, and causes huge losses to the social economy. There is currently no effective method of treating chronic wounds in the clinic. Angiogenesis is an important step in wound healing. Nanomaterials had properties that are not found in conventional materials, and they have been extensively studied in angiogenesis. This review article provides readers with the molecular mechanisms of angiogenesis and the types and applications of angiogenic nanomaterials, hoping to bring inspiration to overcome chronic wounds.
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Affiliation(s)
- Longlong Cui
- School of Life Science, Zhengzhou University, Zhengzhou, China
| | - Jiaheng Liang
- School of Life Science, Zhengzhou University, Zhengzhou, China
| | - Han Liu
- School of Life Science, Zhengzhou University, Zhengzhou, China
| | - Kun Zhang
- School of Life Science, Zhengzhou University, Zhengzhou, China
| | - Jingan Li
- Henan Key Laboratory of Advanced Magnesium Alloy, Key Laboratory of Materials Processing and Mold Technology (Ministry of Education), School of Material Science and Engineering, Zhengzhou University, Zhengzhou, China
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Zhou ZY, Xiao Y, Zhao WR, Zhang J, Shi WT, Ma ZL, Ye Q, Chen XL, Tang N, Tang JY. Pro-angiogenesis effect and transcriptome profile of Shuxinyin formula in zebrafish. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 65:153083. [PMID: 31600690 DOI: 10.1016/j.phymed.2019.153083] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 08/31/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Angiogenesis plays a critical role in ischemia disease like coronary heart disease. Shunxinyin formula has been developed for treating coronary heart disease according to the principle of traditional Chinese medicine while its underlying mechanism is not fully elucidated. PURPOSE Here, we hypothesize Shuxinyin formula could promote angiogenesis and microcirculation, and the underlying mechanism is also investigated. METHODS We established the chemical profile of Shuxinyin (SXY) extract utilizing a UHPLC-Q/Exactive analysis system and evaluated its pro-angiogenesis effect in zebrafish model. The underlying mechanisms were investigated by combination of pharmacological experiments with transcriptome analysis in zebrafish. Zebrafish treated with VEGF was served as the positive control in present study. RESULTS We found SXY significantly enhanced the sub-intestinal vessel plexus (SIVs) growth in zebrafish. Co-treatment and post-treatment SXY attenuated VEGF receptor tyrosine kinase inhibitor II (VRI)-induced deficiency of intersegmental vessels (ISVs) in a concentration dependent manner. Post-treatment VEGF, which is a well-known angiogenesis driver, also partially ameliorated VRI-induced ISVs deficiency. In addition, SXY inhibited the down-regulation of VEGF receptors, including kdr, flt1 and kdrl, induced by VRI in zebrafish. The pro-angiogenesis effect of SXY on VRI-induced ISVs deficiency was suppressed by PI3K and JNK inhibitors, and Akt inhibitor abolished the pro-angiogenesis effect of SXY. The transcriptome profile of SXY preventing from VRI-induced vascular growth deficiency revealed that the underlying mechanisms were also co-related to cell junction, apoptosis and autophagy. CONCLUSION We could conclude that SXY presented pro-angiogenesis effect and the action mechanisms were involved in VEGF/PI3K/Akt/MAPK signaling pathways, cell junction, apoptosis and autophagy.
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Affiliation(s)
- Zhong-Yan Zhou
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China; State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macao
| | - Ying Xiao
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China
| | - Wai-Rong Zhao
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China; Cardiac Rehabilitation Center of Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China
| | - Jing Zhang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China
| | - Wen-Ting Shi
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China
| | - Zi-Lin Ma
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China; Cardiac Rehabilitation Center of Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China
| | - Qing Ye
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China
| | - Xin-Lin Chen
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China
| | - Nuo Tang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China.
| | - Jing-Yi Tang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China; Cardiac Rehabilitation Center of Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 20032, China.
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75
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Sun F, Bi Q, Wang X, Liu J. Down‐regulation of mir‐27b promotes angiogenesis and fibroblast activation through activating PI3K/AKT signaling pathway. Wound Repair Regen 2019; 28:39-48. [PMID: 31587435 DOI: 10.1111/wrr.12765] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/11/2019] [Accepted: 09/13/2019] [Indexed: 01/11/2023]
Affiliation(s)
- Furong Sun
- Department of Burn CosmetologyThe Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai 264000 China
| | - Qingxia Bi
- Department of Burn CosmetologyThe Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai 264000 China
| | - Xueming Wang
- Department of Burn CosmetologyThe Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai 264000 China
| | - Jingyan Liu
- Department of Burn CosmetologyThe Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai 264000 China
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76
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Hou S, Wang L, Zhang G. Mitofusin-2 regulates inflammation-mediated mouse neuroblastoma N2a cells dysfunction and endoplasmic reticulum stress via the Yap-Hippo pathway. J Physiol Sci 2019; 69:697-709. [PMID: 31134519 PMCID: PMC10717024 DOI: 10.1007/s12576-019-00685-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 05/10/2019] [Indexed: 12/12/2022]
Abstract
Endoplasmic reticulum (ER) stress is involved in inflammation-induced neurotoxicity. Mitofusin 2 (Mfn2), a member of the GTPase family of proteins, resides in the ER membrane and is known to regulate ER stress. However, the potential role and underlying mechanism of Mfn2 in inflammation-induced neuronal dysfunction is unknown. In our study, we explored the potential of Mfn2 to attenuate inflammation-mediated neuronal dysfunction by inhibiting ER stress. Our data show that Mfn2 overexpression significantly ameliorated tumor necrosis factor alpha (TNFα)-induced ER stress, as indicated by the downregulation of the ER stress proteins PERK, GRP78 and CHOP. Mfn2 overexpression also prevented the TNFα-mediated activation of caspase-3, caspase-12 and cleaved poly (ADP-ribose) polymerase (PARP). Cellular antioxidant dysfunction and reactive oxygen species overproduction were also improved by Mfn2 in the setting of TNFα in mouse neuroblastoma N2a cells in vitro. Similarly, disordered calcium homeostasis, indicated by disturbed levels of calcium-related proteins and calcium overloading, was corrected by Mfn2, as evidenced by the increased expression of store-operated calcium entry (SERCA), decreased levels of inositol trisphosphate receptor (IP3R), and normalized calcium content in TNFα-treated N2a cells. Mfn2 overexpression was found to elevate Yes-associated protein (Yap) expression; knockdown of Yap abolished the regulatory effects of Mfn2 on ER stress, oxidative stress, calcium balance, neural death and inflammatory injury. These results lead us to conclude that re-activation of the Mfn2-Yap signaling pathway alleviates TNFα-induced ER stress and dysfunction of mouse neuroblastoma N2a cells. Our findings provide a better understanding of the regulatory role of Mfn2-Yap-ER stress in neuroinflammation and indicate that the Mfn2-Yap axis may be a focus of research in terms of having therapeutic value for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Shu Hou
- Department of Neurology and Psychiatry, Beijing Shijitan Hospital, Capital Medical University, No 10 Tieyi Road, Haidian District, Beijing, China
| | - Lili Wang
- Department of Neurology and Psychiatry, Beijing Shijitan Hospital, Capital Medical University, No 10 Tieyi Road, Haidian District, Beijing, China
| | - Guoping Zhang
- Department of Neurology and Psychiatry, Beijing Shijitan Hospital, Capital Medical University, No 10 Tieyi Road, Haidian District, Beijing, China.
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77
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Zhong J, Ouyang H, Sun M, Lu J, Zhong Y, Tan Y, Hu Y. Tanshinone IIA attenuates cardiac microvascular ischemia-reperfusion injury via regulating the SIRT1-PGC1α-mitochondrial apoptosis pathway. Cell Stress Chaperones 2019; 24:991-1003. [PMID: 31388827 PMCID: PMC6717231 DOI: 10.1007/s12192-019-01027-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/04/2019] [Accepted: 07/29/2019] [Indexed: 12/21/2022] Open
Abstract
Cardiac microvascular ischemia-reperfusion (IR) injury has been a neglected topic in recent decades. In the current study, we investigated the mechanism underlying microvascular IR injury, with a focus on mitochondrial homeostasis. We also explored the protective role of tanshinone IIA (Tan IIA) in microvascular protection in the context of IR injury. Through animal studies and cell experiments, we demonstrated that IR injury mediated microvascular wall destruction, lumen stenosis, perfusion defects, and cardiac microvascular endothelial cell (CMEC) apoptosis via inducing mitochondrial damage. In contrast, Tan IIA administration had the ability to sustain CMEC viability and microvascular homeostasis, finally attenuating microvascular IR injury. Function studies have confirmed that the SIRT1/PGC1α pathway is responsible for the microvascular protection from the Tan IIA treatment. SIRT1 activation by Tan IIA sustained the mitochondrial potential, alleviated the mitochondrial pro-apoptotic factor leakage, reduced the mPTP opening, and blocked mitochondrial apoptosis, providing a survival advantage for CMECs and preserving microvascular structure and function. By comparison, inhibiting SIRT1 abrogated the beneficial effects of Tan IIA on mitochondrial function, CMEC survival, and microvascular homeostasis. Collectively, this study indicated that Tan IIA should be considered a microvascular-protective drug that alleviates acute cardiac microcirculation IR injury via activating the SIRT1/PGC1α pathway and thereby blocking mitochondrial damage.
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Affiliation(s)
- Jiankai Zhong
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, 528300, Guangdong, China
| | - Haichun Ouyang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, 528300, Guangdong, China
| | - Mingming Sun
- Department of Animal Science, University of Wyoming, Laramie, WY, 82071, USA
| | - Jianhua Lu
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, 528300, Guangdong, China
| | - Yuanlin Zhong
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, 528300, Guangdong, China
| | - Ying Tan
- Department of Emergency Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Yunzhao Hu
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, 528300, Guangdong, China.
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78
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Fan L, Wang J, Ma C. Pretreatment of bone mesenchymal stem cells with miR181-c facilitates craniofacial defect reconstruction via activating AMPK-Mfn1 signaling pathways. J Recept Signal Transduct Res 2019; 39:199-207. [PMID: 31466503 DOI: 10.1080/10799893.2019.1652649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Context: Bone mesenchymal stem cells (BMSC)-based regenerative therapy is critical for the craniofacial defect reconstruction. However, oxidative stress micro-environment after transplantation limits the therapeutic efficiency of BMSC. The miR-181c has been found to be associated with cell survival and proliferation. Objective: Herein, we investigated whether prior miR-181c treatment promoted BMSC proliferation and survival under oxidative stress injury. Materials and methods: Cells were treated with hydrogen peroxide (H2O2) and then cell viability was determined via MTT assay, TUNEL staining and ELISA. Western blotting and immunofluorescence assay were used to detect those alterations of mitochondrial function. Results: H2O2 treatment reduced BMSC viability and this effect could be reversed via additional supplementation of miR181-c. Mechanistically, oxidative stress increased cell apoptosis, augmented caspase-3 activity, promoted reactive oxygen species (ROS) synthesis, impaired mitochondrial potential, and induced mitochondrial dynamics imbalance. However, miR-181c pretreatment reversed these effects of oxidative stress on BMSC. Moreover, miR-181c treatment improved BMSC proliferation, migration and paracrine, which are very important for craniofacial reconstruction. In addition, we identified that AMPK-Mfn1 axis was the direct targets of miR-181c in BMSC. Mfn1 silencing impaired the protective effects miR-181c on BMSC viability and proliferation under oxidative stress environment. Conclusions: Collectively, our results indicate that miR-181c participates in oxidative stress-mediated BMSC damage by modulating the AMPK-Mfn1 signaling pathway, suggesting miR-181c-AMPK-Mfn1 axis may serves as novel therapeutic targets to facilitate craniofacial defect reconstruction.
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Affiliation(s)
- Longkun Fan
- Department of Medical Plastic Surgery, Cangzhou Central Hospital , Cangzhou , China
| | - Jingxian Wang
- Department of Medical Plastic Surgery, Cangzhou Central Hospital , Cangzhou , China
| | - Chao Ma
- Department of Medical Plastic Surgery, Cangzhou Central Hospital , Cangzhou , China
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79
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Xie Z, Zhou Y, Duan X, Yang L. Inhibitory effect of Tanshinone IIA on inverted formin-2 protects HaCaT cells against oxidative injury via regulating mitochondrial stress. J Recept Signal Transduct Res 2019; 39:134-145. [PMID: 31354004 DOI: 10.1080/10799893.2019.1638402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhiyin Xie
- Department of Dermatology, Beijing Changping Hospital of Traditional Chinese Medicine, Beijing, China
| | - Yu Zhou
- Department of Dermatology, Beijing Changping Hospital of Traditional Chinese Medicine, Beijing, China
| | - Xingwu Duan
- Department of Dermatology, Dongzhimen Hospital, Affiliated to Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Lirong Yang
- Infirmary of Shahe Campus, Central University of Finance and Economics, Beijing, China
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80
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Tian H, Wang K, Jin M, Li J, Yu Y. Proinflammation effect of Mst1 promotes BV-2 cell death via augmenting Drp1-mediated mitochondrial fragmentation and activating the JNK pathway. J Cell Physiol 2019; 235:1504-1514. [PMID: 31283035 DOI: 10.1002/jcp.29070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 06/21/2019] [Indexed: 12/18/2022]
Abstract
Inflammation has been increasingly studied as part of the pathophysiology of neurodegenerative diseases. Mammalian Ste20-like kinase 1 (Mst1), a key factor of the Hippo pathway, is connected to cell death. Unfortunately, little study has been performed to detect the impact of Mst1 in neuroninflammation. The results indicated that Mst1 expression was upregulated because of LPS treatment. However, the loss of Mst1 sustained BV-2 cell viability and promoted cell survival in the presence of LPS treatment. Molecular investigation assay demonstrated that Mst1 deletion was followed by a drop in the levels of mitochondrial fission via repressing Drp1 expression. However, Drp1 adenovirus transfection reduced the protective impacts of Mst1 knockdown on mitochondrial stress and neuronal dysfunction. Finally, our results illuminated that Mst1 affected Drp1 content and mitochondrial fission in a JNK-dependent mechanism. Reactivation of the JNK axis inhibited Mst1 knockdown-mediated neuronal protection and mitochondrial homeostasis. Altogether, our results indicated that Mst1 upregulation and the activation of JNK-Drp1-mitochondrial fission pathway could be considered as the novel mechanism regulating the progression of neuroninflammation. This finding would pave a new road for the treatment of neurodegenerative diseases via modulating the Mst1-JNK-Drp1-mitochondrial fission axis.
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Affiliation(s)
- Hong Tian
- Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, China
| | - Kang Wang
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China
| | - Miao Jin
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China
| | - Jingtao Li
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China
| | - Yanbing Yu
- Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, China
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81
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Liu Y, Fu Y, Hu X, Chen S, Miao J, Wang Y, Zhou Y, Zhang Y. Caveolin-1 knockdown increases the therapeutic sensitivity of lung cancer to cisplatin-induced apoptosis by repressing Parkin-related mitophagy and activating the ROCK1 pathway. J Cell Physiol 2019; 235:1197-1208. [PMID: 31270811 DOI: 10.1002/jcp.29033] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 06/12/2019] [Indexed: 12/12/2022]
Abstract
Chemotherapy is the first-line treatment option for patients with lung cancer. However, therapeutic resistance occurs through an incompletely understood mechanism. Our research wants to investigate the influence of Caveolin-1 (Cav-1) on the therapeutic sensitivity of lung cancer in vitro. Results in this study demonstrated that Cav-1 levels were markedly inhibited in A549 lung cancer cells after exposure to cisplatin. Knockdown of caveolin further enhanced cisplatin-triggered cancer death in A549 cells. The functional investigation demonstrated that Cav-1 inhibition amplified the mitochondrial stress signaling induced by cisplatin, as evidenced by the mitochondrial reactive oxygen species burst, cellular metabolic disruption, mitochondrial membrane potential reduction, and mitochondrial caspase-9-related apoptosis activation. At the molecular level, cav-1 augmented cisplatin-mediated mitochondrial damage by inhibiting Parkin-related mitochondrial autophagy. Mitophagy activation effectively attenuated the promotive impact of Cav-1 knockdown on mitochondrial damage and cell death. Furthermore, our data indicated that Cav-1 affected Parkin-related mitophagy by activating the Rho-associated coiled-coil kinase 1 (ROCK1) pathway; inhibition of the ROCK1 axis prevented cav-1 knockdown-mediated cell death and mitochondrial damage. Taken together, our results provide ample data illuminate the necessary action exerted by Cav-1 on affecting cisplatin-related therapeutic resistance. Silencing of Cav-1 inhibited Parkin-related mitophagy, thus amplifying cisplatin-mediated mitochondrial apoptotic signaling. This finding identifies the Cav-1/ROCK1/Parkin/mitophagy axis as a potential target to overcome cisplatin-related resistance in lung cancer cells.
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Affiliation(s)
- Yi Liu
- Department of Thoracic Surgery, Beijing Chaoyang Hospital, Beijing, Chaoyang, China
| | - Yili Fu
- Department of Thoracic Surgery, Beijing Chaoyang Hospital, Beijing, Chaoyang, China
| | - Xianoxing Hu
- Department of Thoracic Surgery, Beijing Chaoyang Hospital, Beijing, Chaoyang, China
| | - Shuo Chen
- Department of Thoracic Surgery, Beijing Chaoyang Hospital, Beijing, Chaoyang, China
| | - Jinbai Miao
- Department of Thoracic Surgery, Beijing Chaoyang Hospital, Beijing, Chaoyang, China
| | - Yang Wang
- Department of Thoracic Surgery, Beijing Chaoyang Hospital, Beijing, Chaoyang, China
| | - Ying Zhou
- Department of Pulmonary and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, Yangpu, China
| | - Yuan Zhang
- Department of Pulmonary and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, Yangpu, China
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82
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Inhibitory effect of melatonin on Mst1 ameliorates myocarditis through attenuating ER stress and mitochondrial dysfunction. J Mol Histol 2019; 50:405-415. [PMID: 31256303 DOI: 10.1007/s10735-019-09836-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 06/20/2019] [Indexed: 12/27/2022]
Abstract
Viral myocarditis has been found to be one of the leading causes of sudden death in young adults. However, no effective drugs have been developed to intervene the progression of myocarditis. Accordingly, the present study is carried out to explore the protective role played by melatonin in the setting of viral myocarditis with a focus on Mst1-Hippo pathway, mitochondrial dysfunction and ER stress. Cardiac function was determined via echocardiographic examination. Mitochondrial function and ER stress were detected via ELISA, western blots, and immunofluorescence. Our data demonstrated that virus injection induced cardiac dysfunction as evidenced by reduced contractile function in myocardium. Besides, LDH release assay and western blotting analysis demonstrated that cardiomyocyte death was activated by virus injection. Interestingly, melatonin treatment improved cardiac function and repressed virus-mediated cardiomyocyte apoptosis. At the molecular levels, mitochondrial dysfunction was induced by virus infection, as indicated by mitochondrial membrane potential reduction, mPTP opening rate elevation and caspase-9-related apoptosis activation. Besides, ER stress parameters were also elevated in virus-treated cardiomyocytes. Interestingly, melatonin treatment maintained mitochondrial dysfunction and repressed ER stress. To the end, we found that Mst1 was upregulated by virus infection; this effect was attenuated through supplementation with melatonin. However, Mst1 overexpression reduced the beneficial impact exerted by melatonin on cardiomyocyte viability, mitochondrial function and ER homeostasis. Our study illustrated that melatonin treatment attenuated viral myocarditis via sustaining cardiomyocyte viability, repressing mitochondrial dysfunction and inhibiting ER stress in a manner dependent on Mst1 inhibition.
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83
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Shang X, Lin K, Zhang Y, Li M, Xu J, Chen K, Zhu P, Yu R. Mst1 deletion reduces septic cardiomyopathy via activating Parkin-related mitophagy. J Cell Physiol 2019; 235:317-327. [PMID: 31215035 DOI: 10.1002/jcp.28971] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 05/29/2019] [Indexed: 12/17/2022]
Abstract
Cardiomyocyte function and viability are highly modulated by mammalian Ste20-like kinase 1 (Mst1)-Hippo pathway and mitochondria. Mitophagy, a kind of mitochondrial autophagy, is a protective program to attenuate mitochondrial damage. However, the relationship between Mst1 and mitophagy in septic cardiomyopathy has not been explored. In the present study, Mst1 knockout mice were used in a lipopolysaccharide (LPS)-induced septic cardiomyopathy model. Mitophagy activity was measured via immunofluorescence, Western blotting, and enzyme-linked immunosorbent assay. Pathway blocker and small interfering RNA were used to perform the loss-of-function assay. The results demonstrated that Mst1 was rapidly increased in response to LPS stress. Knockout of Mst1 attenuated LPS-mediated inflammation damage, reduced cardiomyocyte death, and improved cardiac function. At the molecular levels, LPS treatment activated mitochondrial damage, such as mitochondrial respiratory dysfunction, mitochondrial potential reduction, mitochondrial ATP depletion, and caspase family activation. Interestingly, in response to mitochondrial damage, Mst1 deletion activated mitophagy which attenuated LPS-mediated mitochondrial damage. However, inhibition of mitophagy via inhibiting parkin mitophagy abolished the protective influences of Mst1 deletion on mitochondrial homeostasis and cardiomyocyte viability. Overall, our results demonstrated that septic cardiomyopathy is linked to Mst1 upregulation which is followed by a drop in the protective mitophagy.
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Affiliation(s)
- Xiuling Shang
- Department of Critical Care Medicine, Fujian Provincial Hospital, Fujian, Provincial Center for Critical Care Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Kaiyang Lin
- Department of Cardiology, Fujian Provincial Hospital, Fujian Cardiovascular Institute, Fujian Medical University, Fuzhou, Fujian, China
| | - Yingrui Zhang
- Department of Critical Care Medicine, Fujian Provincial Hospital, Fujian, Provincial Center for Critical Care Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Min Li
- Department of Critical Care Medicine, Fujian Provincial Hospital, Fujian, Provincial Center for Critical Care Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Jingqing Xu
- Department of Critical Care Medicine, Fujian Provincial Hospital, Fujian, Provincial Center for Critical Care Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Kaihua Chen
- Department of Critical Care Medicine, Fujian Provincial Hospital, Fujian, Provincial Center for Critical Care Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Pengli Zhu
- Department of Geriatric Medicine, Fujian Provincial Hospital, Fujian Provincial Institute of Clinical Geriatrics, Fujian Key Laboratory of Geriatrics, Fujian, Provincial Center for Geriatrics, Fujian Medical University, Fuzhou, Fujian, China
| | - Rongguo Yu
- Department of Critical Care Medicine, Fujian Provincial Hospital, Fujian, Provincial Center for Critical Care Medicine, Fujian Medical University, Fuzhou, Fujian, China
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84
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Song H, Wang M, Xin T. Mst1 contributes to nasal epithelium inflammation via augmenting oxidative stress and mitochondrial dysfunction in a manner dependent on Nrf2 inhibition. J Cell Physiol 2019; 234:23774-23784. [PMID: 31165471 DOI: 10.1002/jcp.28945] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 05/22/2019] [Accepted: 05/23/2019] [Indexed: 12/12/2022]
Abstract
Nasal epithelium inflammation plays an important role in transmitting and amplifying damage signals for the lower airway. However, the molecular basis of nasal epithelium inflammation damage has not been fully addressed. Mst1 is reported to modulate inflammation via multiple effects. Thus, the aim of our study is to understand the pathological mechanism underlying Mst1-related nasal epithelium inflammation in vitro. Our result indicated that Mst1 expression was rapidly increased in response to tumor necrosis factor-α (TNF-α) treatment in vitro and this effect was a dose-dependent manner. Interestingly, knockdown of Mst1 via transfecting small interfering RNA markedly reversed cell viability in the presence of TNF-α. Further, we found that Mst1 deficiency reduced cellular oxidative stress and attenuated mitochondrial dysfunction, as evidenced by reversed mitochondrial complex-I activity, decreased mitochondrial permeability transition pore opening rate, and stabilized mitochondrial membrane potential. Besides, we found that Nrf2 expression was increased after deletion of Mst1 whereas silencing of Nrf2 abolished the protective effects of Mst1 deletion on nasal epithelium survival and mitochondrial homeostasis. Moreover, Nrf2 overexpression also protected nasal epithelium against TNF-α-induced inflammation damage. Altogether, our data confirm that the Mst1 activation and Nrf2 downregulation seem to be the potential mechanisms responsible for the inflammation-mediated injury in nasal epithelium via mediating mitochondrial damage and cell oxidative stress.
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Affiliation(s)
- Henge Song
- Department of Respiratory Medicine, Tianjin Dongli Hospital, Tianjin, China
| | - Mengmeng Wang
- Department of Rheumatism and Immunology, Tianjin First Central Hospital, Tianjin, China
| | - Ting Xin
- Department of Cardiology, Tianjin First Central Hospital, Tianjin, China
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85
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Zhang Y, Wang M, Xu X, Liu Y, Xiao C. Matrine promotes apoptosis in SW480 colorectal cancer cells via elevating MIEF1-related mitochondrial division in a manner dependent on LATS2-Hippo pathway. J Cell Physiol 2019; 234:22731-22741. [PMID: 31119752 DOI: 10.1002/jcp.28838] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 12/16/2022]
Abstract
Matrine, an alkaloid compound isolated from Sophora flavescens Ait, has been shown to exert cancer-killing actions in a variety of tumors; however, its anticancer mechanism in colorectal cancer (CRC) is not clear. The goal of our study was to characterize the anticancer effects and molecular mechanisms of matrine in SW480 CRC cells in vitro. Matrine treatment reduced mitochondrial metabolic function and ATP levels, repressed mitochondrial membrane potential, evoked mitochondrial reactive oxygen species accumulation, and promoted cyt-c-related mitochondrial apoptosis activation. In addition, we found that matrine treatment activated mitochondrial fission through upregulating mitochondrial elongation factor 1 (MIEF1); silencing of MIEF1 prevented matrine-mediated mitochondrial damage and reversed the decrease in SW480 cell viability. Moreover, matrine treatment affected MIEF1 expression via the large tumor suppressor-2 (LATS2)-Hippo axis, and LATS2 deficiency suppressed the anticancer actions exerted by matrine on SW480 cancer cells. In summary, we show for the first time that matrine inhibits SW480 cell survival by activating MIEF1-related mitochondrial division via the LATS2-Hippo pathway. These findings explain the anticancer mechanisms of matrine in CRC and also identify the LATS2-MIEF1 signaling pathway as an effective target for the treatment of CRC.
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Affiliation(s)
- Yawei Zhang
- Department of General Surgery, Fuzong Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China
| | - Meiping Wang
- Department of General Surgery, Fuzhou General Hospital (Dongfang Hospital), Fuzhou, Fujian, China
| | - Xianfeng Xu
- Department of Critical Care Medicine, Changle People's Hospital, Fuzhou, Fujian, China
| | - Yonghong Liu
- Department of General Surgery, First People's Hospital of Yuhang District, Hangzhou, China
| | - Chunhong Xiao
- Department of General Surgery, Fuzhou General Hospital (Dongfang Hospital), Fuzhou, Fujian, China
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86
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Zhang X, Li F, Cui Y, Liu S, Sun H. Mst1 overexpression combined with Yap knockdown augments thyroid carcinoma apoptosis via promoting MIEF1-related mitochondrial fission and activating the JNK pathway. Cancer Cell Int 2019; 19:143. [PMID: 31139020 PMCID: PMC6530088 DOI: 10.1186/s12935-019-0860-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/13/2019] [Indexed: 02/06/2023] Open
Abstract
Background Cancer cell viability is strongly modulated by the Hippo pathway, which includes mammalian STE20-like protein kinase 1 (Mst1) and yes-associated protein (Yap). Although the roles of Mst1 and Yap in thyroid carcinoma cell death have been fully addressed, no study has determined whether differential modification of Mst1 and Yap could further suppress thyroid carcinoma progression. The aim of our study was to explore the antiapoptotic effects exerted by combined Mst1 overexpression and Yap knockdown in thyroid carcinoma MDA-T32 cells in vitro. Methods Mst1 adenovirus and Yap shRNA were transfected into MDA-T32 cells to overexpress Mst1 and inhibit Yap, respectively. Cell viability and death were determined via an MTT assay, a TUNEL assay and western blotting. Mitochondrial function, mitochondrial fission and pathway studies were performed via western blotting and immunofluorescence. Results The results of our study showed that combined Mst1 overexpression and Yap knockdown further augmented MDA-T32 cell death by mediating mitochondrial damage. In addition, cancer cell migration and proliferation were suppressed by combined Mst1 overexpression and Yap knockdown. At the molecular level, mitochondrial membrane potential, ATP production, respiratory function, and caspase-9-related apoptosis were activated by combined Mst1 overexpression and Yap knockdown. Further, we found that fatal mitochondrial fission was augmented by combined Mst1 overexpression and Yap knockdown in a manner dependent on the JNK-MIEF1 pathway. Inhibition of JNK-MIEF1 pathway activity abolished the proapoptotic effects exerted by Mst1/Yap on MDA-T32 cells. Conclusions Taken together, our data suggest that Mst1 activation and Yap inhibition coordinate to augment thyroid cancer cell death by controlling the JNK-MIEF1-mitochondria pathway, suggesting that differential regulation of the core Hippo pathway components is potentially a novel therapeutic tool for the treatment of thyroid cancer. Electronic supplementary material The online version of this article (10.1186/s12935-019-0860-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoli Zhang
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, #45, Chang Chun Street, Beijing, 100053 China
| | - Fei Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, #45, Chang Chun Street, Beijing, 100053 China
| | - Yeqing Cui
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, #45, Chang Chun Street, Beijing, 100053 China
| | - Shuang Liu
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, #45, Chang Chun Street, Beijing, 100053 China
| | - Haichen Sun
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, #45, Chang Chun Street, Beijing, 100053 China
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Akwii RG, Sajib MS, Zahra FT, Mikelis CM. Role of Angiopoietin-2 in Vascular Physiology and Pathophysiology. Cells 2019; 8:cells8050471. [PMID: 31108880 PMCID: PMC6562915 DOI: 10.3390/cells8050471] [Citation(s) in RCA: 291] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/06/2019] [Accepted: 05/16/2019] [Indexed: 12/18/2022] Open
Abstract
Angiopoietins 1–4 (Ang1–4) represent an important family of growth factors, whose activities are mediated through the tyrosine kinase receptors, Tie1 and Tie2. The best characterized are angiopoietin-1 (Ang1) and angiopoietin-2 (Ang2). Ang1 is a potent angiogenic growth factor signaling through Tie2, whereas Ang2 was initially identified as a vascular disruptive agent with antagonistic activity through the same receptor. Recent data demonstrates that Ang2 has context-dependent agonist activities. Ang2 plays important roles in physiological processes and the deregulation of its expression is characteristic of several diseases. In this review, we summarize the activity of Ang2 on blood and lymphatic endothelial cells, its significance in human physiology and disease, and provide a current view of the molecular signaling pathways regulated by Ang2 in endothelial cells.
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Affiliation(s)
- Racheal G Akwii
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
| | - Md S Sajib
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
| | - Fatema T Zahra
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
| | - Constantinos M Mikelis
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
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Huang D, Liu M, Jiang Y. Mitochonic acid-5 attenuates TNF-α-mediated neuronal inflammation via activating Parkin-related mitophagy and augmenting the AMPK-Sirt3 pathways. J Cell Physiol 2019; 234:22172-22182. [PMID: 31062359 DOI: 10.1002/jcp.28783] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/18/2019] [Accepted: 04/22/2019] [Indexed: 12/16/2022]
Abstract
Mitochondrial dysfunction has been found to be associated with neuronal inflammation; however, no effective drug is available to attenuate neuroinflammation via sustaining mitochondrial function. In the current study, experiments were performed to understand the beneficial effects of mitochonic acid 5 (MA-5) on tumor necrosis factor-α (TNF-α)-mediated neuronal injury and mitochondrial damage. Our data illustrated that MA-5 pretreatment reduced inflammation response induced by TNF-α in CATH.a cells. Molecular investigations demonstrated that MA-5 pretreatment repressed oxidative stress, inhibited endoplasmic reticulum stress, sustained cellular energy metabolism, and blocked cell apoptosis induced by TNF-α stress. Further, we found that MA-5 treatment elevated the expression of Sirtuin 3 (Sirt3) and this effect was dependent on the activation of AMP-activated protein kinase (AMPK) pathway. Blockade of AMPK abolished the promotive action of MA-5 on Sirt3 and thus mediated mitochondrial damage and cell death. Besides, we also found that MA-5 treatment augmented Parkin-related mitophagy and increased mitophagy promoted CATH.a cells survival via improving mitochondrial function. Knockdown of Parkin abolished the beneficial action of MA-5 on mitochondrial homeostasis and CATH.a cell survival. Altogether, our results confirm that MA-5 is an effective drug to attenuate neuroinflammation via sustaining mitochondrial damage and promoting CATH.a cell survival. The protective action of MA-5 on neuronal damage is associated with Parkin-related mitophagy and the activation of AMPK-Sirt3 pathways.
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Affiliation(s)
- Dezhi Huang
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Min Liu
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yugang Jiang
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Wang A, Wang J, Wu J, Deng X, Zou Y. Suramin protects hepatocytes from LPS-induced apoptosis by regulating mitochondrial stress and inactivating the JNK-Mst1 signaling pathway. J Physiol Sci 2019; 69:489-502. [PMID: 30771091 PMCID: PMC10717776 DOI: 10.1007/s12576-019-00666-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 02/03/2019] [Indexed: 12/27/2022]
Abstract
An uncontrolled inflammatory response has been implicated in the progression of acute liver failure through poorly understood mechanisms. The aim of our study was to investigate whether suramin attenuates inflammation-mediated hepatocyte apoptosis by modulating mitochondrial homeostasis. Primary hepatocytes were isolated from mice and treated with LPS in vitro in the presence or absence of suramin. Western blotting, immunofluorescence staining, and ELISAs were used to evaluate the mitochondrial stress. The LPS treatment caused hepatocyte death via apoptosis. Interestingly, suramin supplementation attenuated LPS-mediated hepatocyte death by reducing Mst1 expression; the overexpression of Mst1 abolished the anti-apoptotic effects of suramin on LPS-treated hepatocytes. At the molecular level, suramin treatment repressed mitochondrial oxidative stress, sustained mitochondrial dynamics and blocked the caspase-9-mediated mitochondrial apoptosis pathway; these effects of suramin were achieved by reversing Mst1 expression. Furthermore, our study found that suramin modulated Mst1 expression via the JNK signaling pathway. Activation of JNK prevented the suramin-mediated Mst1 downregulation and concomitantly increased hepatocyte apoptosis and mitochondrial dysfunction. Taken together, our results confirmed the anti-apoptotic and anti-inflammatory effects of suramin on LPS-challenged hepatocytes. Suramin sustained hepatocyte viability and attenuated mitochondrial stress via repressing the JNK-Mst1 signaling pathway.
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Affiliation(s)
- Aizhong Wang
- Department of Anesthesiology, Shanghai Sixth People's Hospital affiliated to Shanghai University of Medicine and Health Sciences, No. 222 Huanhuxisan Road, Pudong, 201306, Shanghai, China
| | - Jiali Wang
- Department of Intensive Care Medicine, Shanghai Sixth People's Hospital affiliated to Shanghai University of Medicine and Health Sciences, No. 222 Huanhuxisan Road, Pudong, 201306, Shanghai, China
| | - Jun Wu
- Department of Intensive Care Medicine, Shanghai Sixth People's Hospital affiliated to Shanghai University of Medicine and Health Sciences, No. 222 Huanhuxisan Road, Pudong, 201306, Shanghai, China
| | - Xiaojun Deng
- Department of Intensive Care Medicine, Shanghai Sixth People's Hospital affiliated to Shanghai University of Medicine and Health Sciences, No. 222 Huanhuxisan Road, Pudong, 201306, Shanghai, China
| | - Yan Zou
- Department of Intensive Care Medicine, Shanghai Sixth People's Hospital affiliated to Shanghai University of Medicine and Health Sciences, No. 222 Huanhuxisan Road, Pudong, 201306, Shanghai, China.
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Song J, Lu C, Zhao W, Shao X. Melatonin attenuates TNF-α-mediated hepatocytes damage via inhibiting mitochondrial stress and activating the Akt-Sirt3 signaling pathway. J Cell Physiol 2019; 234:20969-20979. [PMID: 31025320 DOI: 10.1002/jcp.28701] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/25/2019] [Accepted: 04/10/2019] [Indexed: 12/28/2022]
Abstract
The role of mitochondrial dysfunction and its molecular mechanism in inflammation-induced acute liver failure (ALF) remain unknown. Despite the numerous studies performed to date, very few therapies are available for inflammation-induced ALF. Therefore, our study is aimed to explore the regulatory effects of mitochondrial stress and the Akt-Sirt3 pathway on the development of TNF-α-induced hepatocyte death and assess the therapeutic effects of melatonin on the damaged liver. Our results exhibited that TNF-α treatment induced hepatocyte damage in vitro; the effect of which was dose-dependently inhibited by melatonin. At the molecular level, TNF-α-treated hepatocytes expressed lower levels of Sirt3 and subsequently exhibited mitochondrial stress. Interestingly, melatonin treatment improved mitochondrial bioenergetics, reduced mitochondrial oxidative stress, reversed mitochondrial dynamics, and repressed mitochondrial apoptosis by reversing the decrease in Sirt3 expression after TNF-α challenge. In addition, we found that melatonin-regulated Sirt3 expression in a manner dependent on the Akt pathway. Blockade of the Akt pathway abolished the protective exerted by melatonin on mitochondria and hepatocyte under TNF-α treatment. In conclusion, TNF-α promotes hepatocyte apoptosis by inducing mitochondrial stress. However, melatonin significantly increases the activity of the Akt/Sirt3 axis and consequently maintains mitochondrial homeostasis, restoring hepatocyte viability in an inflammatory environment. Thus, the information compiled here might provide important perspectives for the use of melatonin in the clinic for preventive and therapeutic applications in patients with ALF based on its anti-inflammatory and mitochondria-protective effects.
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Affiliation(s)
- Jie Song
- Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Chang Lu
- Department of Anesthesiology, The Second Hospital of Jilin University, Changchun, China
| | - Wei Zhao
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun, China
| | - Xue Shao
- Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, China
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Emerging Roles of Redox-Mediated Angiogenesis and Oxidative Stress in Dermatoses. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2304018. [PMID: 31178954 PMCID: PMC6501144 DOI: 10.1155/2019/2304018] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/14/2019] [Accepted: 03/14/2019] [Indexed: 12/24/2022]
Abstract
Angiogenesis is the process of new vessel formation, which sprouts from preexisting vessels. This process is highly complex and primarily involves several key steps, including stimulation of endothelial cells by growth factors, degradation of the extracellular matrix by proteolytic enzymes, migration and proliferation of endothelial cells, and capillary tube formation. Currently, it is considered that multiple cytokines play a vital role in this process, which consist of proangiogenic factors (e.g., vascular endothelial growth factor, fibroblast growth factors, and angiopoietins) and antiangiogenic factors (e.g., endostatin, thrombospondin, and angiostatin). Angiogenesis is essential for most physiological events, such as body growth and development, tissue repair, and wound healing. However, uncontrolled neovascularization may contribute to angiogenic disorders. In physiological conditions, the above promoters and inhibitors function in a coordinated way to induce and sustain angiogenesis within a limited period of time. Conversely, the imbalance between proangiogenic and antiangiogenic factors could cause pathological angiogenesis and trigger several diseases. With insights into the molecular mechanisms of angiogenesis, increasing reports have shown that a close relationship exists between angiogenesis and oxidative stress (OS) in both physiological and pathological conditions. OS, an imbalance between prooxidant and antioxidant systems, is a cause and consequence of many vascular complains and serves as one of the biomarkers for these diseases. Furthermore, emerging evidence supports that OS and angiogenesis play vital roles in many dermatoses, such as psoriasis, atopic dermatitis, and skin tumor. This review summarizes recent findings on the role of OS as a trigger of angiogenesis in skin disorders, highlights newly identified mechanisms, and introduces the antiangiogenic and antioxidant therapeutic strategies.
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Hou Y, Lan C, Kong Y, Zhu C, Peng W, Huang Z, Zhang C. Genetic ablation of TAZ induces HepG2 liver cancer cell apoptosis through activating the CaMKII/MIEF1 signaling pathway. Onco Targets Ther 2019; 12:1765-1779. [PMID: 30881030 PMCID: PMC6402445 DOI: 10.2147/ott.s196142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background and objective Transcriptional coactivator with PDZ-binding motif (TAZ) has been found to be associated with tumor progression. Mitochondrial homeostasis regulates cancer cell viability and metastasis. However, the roles of TAZ and mitochondrial homeostasis in liver cancer viability have not been explored. The aim of our study was to investigate the influence of TAZ on HepG2 liver cancer cell apoptosis. Materials and methods HepG2 liver cancer cell was used in the present study, and shRNA against TAZ was transfected into HepG2 cell to knockdown TAZ expression. Mitochondrial function was analyzed using Western blotting, immunofluorescence assay, and flow cytometry. Pathway blocker was used to confirm the role of CaMKII pathway in TAZ-mediated cancer cell death. Results Our results indicated that TAZ deletion induced death in HepG2 cell via apoptosis. Biological analysis demonstrated that mitochondrial stress, including mitochondrial bioenergetics disorder, mitochondrial oxidative stress, and mitochondrial apoptosis, were activated by TAZ deletion. Furthermore, we found that TAZ affected mitochondrial stress by triggering mitochondrial elongation factor 1 (MIEF1)-related mitochondrial dysfunction. The loss of MIEF1 sustained mitochondrial function and promoted cancer cell survival. Molecular investigation illustrated that TAZ regulated MIEF1 expression via the CaMKII signaling pathway. Blockade of the CaMKII pathway prevented TAZ-mediated MIEF1 upregulation and improved cancer cell survival. Conclusion Taken together, our results highlight the key role of TAZ as a master regulator of HepG2 liver cancer cell viability via the modulation of MIEF1-related mitochondrial stress and the CaMKII signaling pathway. These findings define TAZ and MIEF1-related mitochondrial dysfunction as tumor suppressors that act by promoting cancer apoptosis via the CaMKII signaling pathway, with potential implications for new approaches to liver cancer therapy.
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Affiliation(s)
- Yi Hou
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Chunna Lan
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Ying Kong
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Chunjiao Zhu
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Wenna Peng
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Zhichao Huang
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Changjie Zhang
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
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93
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Melatonin enhances TNF-α-mediated cervical cancer HeLa cells death via suppressing CaMKII/Parkin/mitophagy axis. Cancer Cell Int 2019; 19:58. [PMID: 30923460 PMCID: PMC6419493 DOI: 10.1186/s12935-019-0777-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 03/08/2019] [Indexed: 12/11/2022] Open
Abstract
Background Tumor necrosis factor-α (TNF-α) immunotherapy controls the progression of human cervical cancer. Here, we explored the detailed molecular mechanisms played by melatonin in human cervical cancer (HeLa cells) death in the presence of TNF-α injury, with a particular attention to the mitochondrial homeostasis. Methods HeLa cells were incubated with TNFα and then cell death was determined via MTT assay, TUNEL staining, caspase ELISA assay and western blotting. Mitochondrial function was detected via analyzing mitochondrial membrane potential using JC-1 staining, mitochondrial oxidative stress using flow cytometry and mitochondrial apoptosis using western blotting. Results Our data exhibited that treatment with HeLa cells using melatonin in the presence of TNF-α further triggered cancer cell cellular death. Molecular investigation demonstrated that melatonin enhanced the caspase-9 mitochondrion death, repressed mitochondrial potential, increased ROS production, augmented mPTP opening rate and elevated cyt-c expression in the nucleus. Moreover, melatonin application further suppressed mitochondrial ATP generation via reducing the expression of mitochondrial respiratory complex. Mechanistically, melatonin augmented the response of HeLa cells to TNF-α-mediated cancer death via repressing mitophagy. TNF-α treatment activated mitophagy via elevating Parkin expression and excessive mitophagy blocked mitochondrial apoptosis, ultimately alleviating the lethal action of TNF-α on HeLa cell. However, melatonin supplementation could prevent TNF-α-mediated mitophagy activation via inhibiting Parkin in a CaMKII-dependent manner. Interestingly, reactivation of CaMKII abolished the melatonin-mediated mitophagy arrest and HeLa cell death. Conclusions Overall, our data highlight that melatonin enhances TNF-α-induced human cervical cancer HeLa cells mitochondrial apoptosis via inactivating the CaMKII/Parkin/mitophagy axis.
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Schirbel A, Rebert N, Sadler T, West G, Rieder F, Wagener C, Horst A, Sturm A, de la Motte C, Fiocchi C. Mutual Regulation of TLR/NLR and CEACAM1 in the Intestinal Microvasculature: Implications for IBD Pathogenesis and Therapy. Inflamm Bowel Dis 2019; 25:294-305. [PMID: 30295747 PMCID: PMC6327233 DOI: 10.1093/ibd/izy316] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) displays multiple activities, among which pathogen binding and angiogenesis are particularly prominent. These same functions are also exerted by Toll- and NOD-like receptors (TLRs and NLRs), which are critical mediators of innate immune responses. We investigated whether a functional inter-relationship exists between CEACAM1 and TLRs and NLRs and its potential impact on induction of intestinal angiogenesis. METHODS This hypothesis was tested using human intestinal microvascular endothelial cells, a unique cell population exposed to microbial products under physiological and pathological conditions. RESULTS The results show that activation of TLR2/4, TLR4, NOD1, and NOD2 by specific bacterial ligands selectively and differentially upregulates the levels of cellular and soluble CEACAM1 produced by intestinal microvascular endothelial cells. The results also show that CEACAM1 regulates the migration, transmigration, and tube formation of these endothelial cells and mediates vessel sprouting induced by specific TLR and NLR bacterial ligands. Combined, these results demonstrate a close and reciprocal regulatory interaction between CEACAM1 and bacterial products in mediating multiple functions essential to new vessel formation in the gut mucosa. CONCLUSIONS A coordinated and reciprocal interaction of CEACAM1 and microbiota-derived factors is necessary to optimize angiogenesis in the gut mucosa. This suggests that a coordination of endogenous and exogenous innate immune responses is necessary to promote intestinal angiogenesis under physiological and inflammatory conditions such as inflammatory bowel disease.
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Affiliation(s)
- Anja Schirbel
- Department of Hepatology and Gastroenterology, Charité - Universitätsmedizin Berlin, Campus Mitte, Berlin, Germany
- Department of Inflammation and Immunity, Lerner Research Institute, Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio
| | - Nancy Rebert
- Department of Inflammation and Immunity, Lerner Research Institute, Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio
| | - Tammy Sadler
- Department of Inflammation and Immunity, Lerner Research Institute, Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio
| | - Gail West
- Department of Inflammation and Immunity, Lerner Research Institute, Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio
| | - Florian Rieder
- Department of Inflammation and Immunity, Lerner Research Institute, Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio
| | | | - Andrea Horst
- University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas Sturm
- DRK Kliniken Berlin, Schwerpunkt Gastroenterologie, Berlin, Germany
| | - Carol de la Motte
- Department of Inflammation and Immunity, Lerner Research Institute, Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio
| | - Claudio Fiocchi
- Department of Inflammation and Immunity, Lerner Research Institute, Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio
- Address correspondence to: Claudio Fiocchi, MD, Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195 ()
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Liu T, Tao J, Lin J, Nie X, Huang W, Guo J. Thymopentin promotes ovarian angiogenesis in mice by activating N6-methyladenosine (m6A) RNA modification of key factors in the Notch/Tie1 pathway. VASCULAR INVESTIGATION AND THERAPY 2019. [DOI: 10.4103/vit.vit_17_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Zhao S, Li P, Wang P, Yang J, Song P, Zhang D, Zhou G. Nurr1 Promotes Lung Cancer Apoptosis Via Enhancing Mitochondrial Stress and p53-Drp1 Pathway. Open Life Sci 2019; 14:262-274. [PMID: 33817160 PMCID: PMC7874811 DOI: 10.1515/biol-2019-0030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/07/2019] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE Mitochondrial homeostasis is vital for the progression of lung cancer. Nurr1 has been identified as a novel mediator of mitochondrial homeostasis in several types of cancers. The aim of our study was to investigate whether Nurr1 modulates the viability of A549 lung cancer cells by inducing mitochondrial dysfunction, with a focus on the p53-Drp1 signaling pathway. METHODS western blotting, ELISA and immunofluorescence assay was used to verify the alterations of cell death. siRNA was used to determine the role of p53-Drp1 pathway in lung cancer death. RESULTS Nurr1 was downregulated in A549 lung cancer cells compared to normal pulmonary epithelial cells. Interestingly, overexpression of Nurr1 reduced the viability of A549 lung cancer cells by activating apoptosis and mitochondrial stress. At the molecular level, we provide data to support the regulatory effects of Nurr1 on the p53-Drp1 signaling pathway. Blockade of the p53-Drp1 signaling pathway abolished the proapoptotic action of Nurr1 on A549 cells and sustained mitochondrial homeostasis. CONCLUSION Taken together, our results depict the tumor-suppressive role played by Nurr1 in A549 lung cancer in vitro and show that the anticancer effects of Nurr1 are executed via triggering of mitochondrial dysfunction and activation of the p53-Drp1 signaling pathway.
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Affiliation(s)
- Shu Zhao
- Department of Oncology, the Second Medical Center, Chinese PLA (People’s Liberation Army)General Hospital, Beijing, 100853,China
| | - Peng Li
- Department of Oncology, the Second Medical Center, Chinese PLA (People’s Liberation Army)General Hospital, Beijing, 100853,China
| | - Peng Wang
- Department of Oncology, the Second Medical Center, Chinese PLA (People’s Liberation Army)General Hospital, Beijing, 100853,China
| | - Jing Yang
- Department of Oncology, the Second Medical Center, Chinese PLA (People’s Liberation Army)General Hospital, Beijing, 100853,China
| | - Peng Song
- Department of Oncology, the Second Medical Center, Chinese PLA (People’s Liberation Army)General Hospital, Beijing, 100853,China
| | - Dong Zhang
- Department of Oncology, the Second Medical Center, Chinese PLA (People’s Liberation Army)General Hospital, Beijing, 100853,China
| | - Gang Zhou
- Department of Oncology, the Second Medical Center, Chinese PLA (People’s Liberation Army)General Hospital, Beijing, 100853,China
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Yin W, Zhu J, Gonzalez-Rivas D, Okumura M, Rocco G, Pass H, Jiang G, Yang Y. Construction of a Novel Bispecific Antibody to Enhance Antitumor Activity against Lung Cancer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1805437. [PMID: 30345557 PMCID: PMC8104455 DOI: 10.1002/adma.201805437] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/11/2018] [Indexed: 06/08/2023]
Abstract
HER2 and VEGF are closely related to the progression of several tumors. The inhibitor simultaneously targeting these two proteins will effectively inhibit the progression of tumors. Here, a bispecific antibody, termed as YY0411, targeting both HER2 and VEGF as a potent anticancer therapeutic antibody is reported. YY0411 is the first bispecific antibody constructed in IgG-Decoy receptor format. It efficiently identifies and combines both HER2 and VEGF protein. YY0411 is believed to be a candidate tumor suppressor as it significantly inhibits the colony formation ability of human cancer cells (Calu-3, MDA-MB-453, and NCI-N87 cells). The phosphorylation of HER2 and VEGF downstream components are also decreased in these cells with the treatment of YY0411. Similar to other antibodies, YY0411 has the ability to promote the secretion of IFN-γ by T lymphocytes. In addition, YY0411 significantly inhibits the growth of Calu-3 cells-induced xenograft in nude mice. This work demonstrates that YY0411 may be a potential anti-lung cancer drug.
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Affiliation(s)
- Wei Yin
- Key laboratory of Oral Biomedical engineering of Ministry of education, Hospital of Stomatology, School of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Junjie Zhu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, 507 Zhengmin Road, Shanghai, 200433, China
| | - Diego Gonzalez-Rivas
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, 507 Zhengmin Road, Shanghai, 200433, China
- Department of thoracic surgery and Minimally Invasive Thoracic Surgery Unit (UCTMI). Coruña University Hospital, Coruña, 15706, Spain
| | - Meinoshin Okumura
- Hospital Director, Toneyama National Hospital, Osaka, 560-8552, Japan
| | - Gaetano Rocco
- Thoracic Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, NY, 10065, USA
| | - Harvey Pass
- Department of Cardiothoracic Surgery, NYU Langone Medical Center, NY, 10016, USA
| | - Gening Jiang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, 507 Zhengmin Road, Shanghai, 200433, China
| | - Yang Yang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, 507 Zhengmin Road, Shanghai, 200433, China
- Institute for Advanced Study, Tongji University, 1239 Siping Road, Shanghai, 200430, China
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