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Mo Z, Zhan M, Yang X, Xie P, Xiao J, Cao Y, Xiao H, Song M. Fermented dietary fiber from soy sauce residue exerts antidiabetic effects through regulating the PI3K/AKT signaling pathway and gut microbiota-SCFAs-GPRs axis in type 2 diabetic mellitus mice. Int J Biol Macromol 2024; 270:132251. [PMID: 38729488 DOI: 10.1016/j.ijbiomac.2024.132251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/12/2024]
Abstract
The gut plays a crucial role in the development and progression of metabolic disorders, particularly in relation to type 2 diabetes mellitus (T2DM). While a high intake of dietary fiber is inversely associated with the risk of T2DM, the specific effects of various dietary fibers on T2DM are not fully understood. This study investigated the anti-diabetic properties of fermented dietary fiber (FDF) derived from soy sauce residue in T2DM mice, demonstrating its ability to lower blood glucose levels and ameliorate insulin resistance. Our findings revealed that FDF could enhance hepatic glucose metabolism via the IRS-1/PI3K/AKT/mTOR pathway. Additionally, the anti-diabetic effect of FDF was correlated with alterations in gut microbiota composition in T2DM mice, promoting a healthier gut environment. Specifically, FDF increased the abundance of beneficial flora such as Dubosiella, Butyricimonas, Lachnospiraceae_NK4A136_group, Lactobacillus and Osillibacter, while reducing harmful bacteria including Bilophila, Parabacteroides and Enterorhabdus. Further analysis of microbial metabolites, including short-chain fatty acids (SCFAs) and bile acids (BAs), provided evidence of FDF's regulatory effects on cecal contents in T2DM mice. Importantly, FDF treatment significantly restored the G-protein-coupled receptors (GPRs) expression in the colon of T2DM mice. In conclusion, our study suggests that the anti-diabetic effects of FDF are associated with the regulation of both the liver-gut axis and the gut microbiota-SCFAs-GPRs axis.
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Affiliation(s)
- Zheqi Mo
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Minmin Zhan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xiaoshuang Yang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Peichun Xie
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Jie Xiao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Mingyue Song
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China.
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2
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Wang Q, Wang B, Zhang W, Zhang T, Liu Q, Jiao X, Ye J, Hao Y, Gao Q, Ma G, Hao C, Cui B. APLN promotes the proliferation, migration, and glycolysis of cervical cancer through the PI3K/AKT/mTOR pathway. Arch Biochem Biophys 2024; 755:109983. [PMID: 38561035 DOI: 10.1016/j.abb.2024.109983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/01/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
Apelin (APLN) is an endogenous ligand of the G protein-coupled receptor APJ (APLNR). APLN has been implicated in the development of multiple tumours. Herein, we determined the effect of APLN on the biological behaviour and underlying mechanisms of cervical cancer. The expression and survival curves of APLN were determined using Gene Expression Profiling Interactive Analysis. The cellular functions of APLN were detected using CCK-8, clone formation, EdU, Transwell assays, flow cytometry, and seahorse metabolic analysis. The underlying mechanisms were elucidated using gene set enrichment analysis and Western blotting. APLN was upregulated in the samples of patients with cervical cancer and is associated with poor prognosis. APLN knockdown decreased the proliferation, migration, and glycolysis of cervical cancer cells. The opposite results were observed when APLN was overexpressed. Mechanistically, we determined that APLN was critical for activating the PI3K/AKT/mTOR pathway via APLNR. APLN receptor inhibitor ML221 reversed the effect of APLN overexpression on cervical cancer cells. Treatment with LY294002, the PI3K inhibitor, drastically reversed the oncological behaviour of APLN-overexpressing C-33A cells. APLN promoted the proliferation, migration, and glycolysis of cervical cancer cells via the PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Qi Wang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China; Department of Obstetrics and Gynecology, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, Shandong, China
| | - Bingyu Wang
- Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Wenjing Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Teng Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Qingqing Liu
- Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Xinlin Jiao
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Jinwen Ye
- Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Yiping Hao
- Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Qun Gao
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, No.16 Jiangsu Road, Qingdao, 266000, Shandong, China
| | - Guangzhen Ma
- Department of Pathology, The Second People's Hospital of Liaocheng, Liaocheng, 252600, Shandong, China
| | - Chunyan Hao
- Department of Pathology, School of Basic Medical Sciences and Qilu Hospital, Shandong University, Jinan, Shandong Province, PR China.
| | - Baoxia Cui
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China.
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Mangalpady SS, Peña-Corona SI, Borbolla-Jiménez F, Kaverikana R, Shetty S, Shet VB, Almarhoon ZM, Calina D, Leyva-Gómez G, Sharifi-Rad J. Arnicolide D: a multi-targeted anticancer sesquiterpene lactone-preclinical efficacy and mechanistic insights. Naunyn Schmiedebergs Arch Pharmacol 2024:10.1007/s00210-024-03095-7. [PMID: 38652277 DOI: 10.1007/s00210-024-03095-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
Arnicolide D, a potent sesquiterpene lactone from Centipeda minima, has emerged as a promising anticancer candidate, demonstrating significant efficacy in inhibiting cancer cell proliferation, inducing apoptosis, and suppressing metastasis across various cancer models. This comprehensive study delves into the molecular underpinnings of Arnicolide D's anticancer actions, emphasizing its impact on key signaling pathways such as PI3K/AKT/mTOR and STAT3, and its role in modulating cell cycle and survival mechanisms. Quantitative data from preclinical studies reveal Arnicolide D's dose-dependent cytotoxicity against cancer cell lines, including nasopharyngeal carcinoma, triple-negative breast cancer, and human colon carcinoma, showcasing its broad-spectrum anticancer potential. Given its multifaceted mechanisms and preclinical efficacy, Arnicolide D warrants further investigation in clinical settings to validate its therapeutic utility against cancer. The evidence presented underscores the need for rigorous pharmacokinetic and toxicological studies to establish safe dosing parameters for future clinical trials.
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Affiliation(s)
- Shivaprasad Shetty Mangalpady
- Department of Chemistry, NMAM Institute of Technology (NMAMIT), Nitte (Deemed to Be University), Nitte, Mangaluru, India
| | - Sheila I Peña-Corona
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico
| | - Fabiola Borbolla-Jiménez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico
| | - Rajesh Kaverikana
- Department of Pharmacology, NGSM Institute of Pharmaceuticals, Nitte (Deemed to Be University), Mangaluru, India
| | - Shobhitha Shetty
- Department of Chemistry, A.J. Institute of Engineering & Technology, Mangaluru, India
| | - Vinayaka Babu Shet
- Department of Biotechnology Engineering, NMAM Institute of Technology (NMAMIT), Nitte (Deemed to Be University), Mangaluru, India
| | - Zainab M Almarhoon
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania.
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico.
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Li XQ, Cheng XJ, Wu J, Wu KF, Liu T. Targeted inhibition of the PI3K/AKT/mTOR pathway by (+)-anthrabenzoxocinone induces cell cycle arrest, apoptosis, and autophagy in non-small cell lung cancer. Cell Mol Biol Lett 2024; 29:58. [PMID: 38649803 PMCID: PMC11036658 DOI: 10.1186/s11658-024-00578-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 04/10/2024] [Indexed: 04/25/2024] Open
Abstract
Non-small cell lung cancer (NSCLC), characterized by low survival rates and a high recurrence rate, is a major cause of cancer-related mortality. Aberrant activation of the PI3K/AKT/mTOR signaling pathway is a common driver of NSCLC. Within this study, the inhibitory activity of (+)-anthrabenzoxocinone ((+)-ABX), an oxygenated anthrabenzoxocinone compound derived from Streptomyces, against NSCLC is demonstrated for the first time both in vitro and in vivo. Mechanistically, it is confirmed that the PI3K/AKT/mTOR signaling pathway is targeted and suppressed by (+)-ABX, resulting in the induction of S and G2/M phase arrest, apoptosis, and autophagy in NSCLC cells. Additionally, the augmentation of intracellular ROS levels by (+)-ABX is revealed, further contributing to the inhibition of the signaling pathway and exerting inhibitory effects on tumor growth. The findings presented in this study suggest that (+)-ABX possesses the potential to serve as a lead compound for the treatment of NSCLC.
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Affiliation(s)
- Xiao-Qian Li
- The Third Affiliated Hospital of Zunyi Medical University, The First People's Hospital of Zunyi), Scientific Research Center, Guizhou, 563002, People's Republic of China
| | - Xiao-Ju Cheng
- The Third Affiliated Hospital of Zunyi Medical University, The First People's Hospital of Zunyi), Scientific Research Center, Guizhou, 563002, People's Republic of China
| | - Jie Wu
- The Third Affiliated Hospital of Zunyi Medical University, The First People's Hospital of Zunyi), Scientific Research Center, Guizhou, 563002, People's Republic of China
| | - Kai-Feng Wu
- The Third Affiliated Hospital of Zunyi Medical University, The First People's Hospital of Zunyi), Scientific Research Center, Guizhou, 563002, People's Republic of China.
| | - Tie Liu
- The Third Affiliated Hospital of Zunyi Medical University, The First People's Hospital of Zunyi), Scientific Research Center, Guizhou, 563002, People's Republic of China.
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
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5
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Chen C, Ou Q, Chen K, Liang C, Zeng X, Lin D, Lin L. Foam dressing and micropower vacuum dressing promote diabetic foot ulcer wound healing by activating the PI3K/AKT/mTOR pathway in rats. J Biomater Appl 2024:8853282241248780. [PMID: 38641897 DOI: 10.1177/08853282241248780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
Foam dressing (FD) and micropower vacuum dressing (MVD) have been applied in the treatment of diabetic foot ulcer (DFU). However, research about the mode of action on the efficacy of the two dressings is extremely rare. This study proposed to explore the mechanism involved in diabetic wound healing under FD or MVD treatment. Macroscopical study was performed to evaluate the effectiveness of FD and MVD on wound healing in a rat model of DFU. Morphological analysis in the wound skin tissue was conducted by hematoxylin and eosin staining. Meanwhile, inflammatory cytokines in serum were measured by enzyme linked immunosorbent assay. The protein expression of phosphatidylinositol 3 kinase, protein kinase B and mammalian target of rapamycin (PI3K/AKT/mTOR) and their phosphorylation levels were determined by western blotting. We found that wound healing in rats with DFU was enhanced with the application of FD and MVD. The therapeutic efficacy of FD was superior to MVD. Compared with diabetic foot group, the concentrations of inflammatory cytokines, tumor necrosis factor alpha, interleukin-1β and interleukin-6, were significantly down-regulated. Besides, the phosphorylation levels of PI3K, AKT and mTOR were up-regulated under FD or MVD treatment. We demonstrated that the treatment of FD and MVD effectively promoted the wound skin healing through activating the PI3K/AKT/mTOR pathway. Our research may provide a new idea for exploring the mode of action of dressing application in healing of DFU.
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Affiliation(s)
- Cunren Chen
- Department of Endocrinology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Qianying Ou
- Department of Endocrinology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Kaining Chen
- Department of Endocrinology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Changli Liang
- Department of Endocrinology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Xiaocui Zeng
- Department of Endocrinology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Danhong Lin
- Department of Endocrinology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Lu Lin
- Department of Endocrinology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
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Hong J, Du K, Jin H, Chen Y, Jiang Y, Zhang W, Chen D, Zheng S, Cao L. Evidence of promoting effects of 6:2 Cl-PFESA on hepatocellular carcinoma proliferation in humans: An ideal alternative for PFOS in terms of environmental health? Environ Int 2024; 186:108582. [PMID: 38513556 DOI: 10.1016/j.envint.2024.108582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/04/2024] [Accepted: 03/14/2024] [Indexed: 03/23/2024]
Abstract
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are synthetic chemicals, encompassing compounds like perfluorooctane sulfonate (PFOS), which have widespread applications across various industries, including food packaging and firefighting. In recent years, China has increasingly employed 6:2 Cl-PFESA as an alternative to PFOS. Although the association between PFAS exposure and hepatocellular carcinoma (HCC) has been demonstrated, the underlying mechanisms that promote HCC proliferation are uncleared. Therefore, we aimed to investigate the effects and differences of PFOS and 6:2 Cl-PFESA on HCC proliferation through in vivo and in vitro tumor models. Our results reveal that both PFOS and 6:2 Cl-PFESA significantly contribute to HCC proliferation in vitro and in vivo. Exposure led to reduced population doubling times, enlarged cell colony sizes, enhanced DNA synthesis efficiency, and a higher proportion of cells undergoing mitosis. Furthermore, both PFOS and 6:2 Cl-PFES) have been shown to activate the PI3K/AKT/mTOR signaling pathway and inhibit necroptosis. This action consequently enhances the proliferation of HCC cells. Our phenotypic assay findings suggest that the tumorigenic potential of 6:2 Cl-PFESA surpasses that of PFOS; in a subcutaneous tumor model using nude mice, the mean tumor weight for the 6:2 Cl-PFESA-treated cohort was 2.33 times that observed in the PFOS cohort (p < 0.01). Despite 6:2 Cl-PFESA being considered a safer substitute for PFOS, the pronounced effects of this chemical on HCC cell growth warrant a thorough assessment of hepatotoxicity risks linked to its usage.
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Affiliation(s)
- Jiawei Hong
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Keyi Du
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Hangbiao Jin
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, China; Innovation Research Center of Advanced Environmental Technology, Eco-Industrial Innovation Institute ZJUT, Quzhou, Zhejiang 324400, China
| | - Yuanchen Chen
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, China; Innovation Research Center of Advanced Environmental Technology, Eco-Industrial Innovation Institute ZJUT, Quzhou, Zhejiang 324400, China
| | - Yifan Jiang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Weichen Zhang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Diyu Chen
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Linping Cao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310003, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China.
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7
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Wang Z, Zhang X, Lv DM, Cao S, Yang G, Zhang Z, Yu Q. Fructus lycii oligosaccharide alleviates acute liver injury via PI3K/Akt/mTOR pathway. Immunol Res 2024; 72:271-283. [PMID: 38032450 DOI: 10.1007/s12026-023-09431-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023]
Abstract
Regulating the immune-environment is essential for treating acute liver injury (ALI). However, the deficiency of an effective immune balancer restricted progress. Herein, we reported an oligosaccharide from Fructus lycii oligosaccharide (FLO). To investigate the effects of FLO, we adopted primary macrophages and LO2 for experiments in vitro. In vivo, we assessed the influence of FLO in ALI with histochemical staining and enzyme indicators detection. Following that, we clarified the underlying mechanisms using western blotting and immunofluorescence. Our results indicated that FLO (100 μg/mL) showed apparent inflammatory reversal effects by shifting the phenotype of macrophages from M1 to M2 without causing any cytotoxicity. Furthermore, CCl4-induced mice were significantly improved by FLO intragastric administration. Meanwhile, PI3K/AKT/mTOR pathway was confirmed for the up-regulation of IL-10 via M2 polarization of macrophages. Collectively, our findings highlight the beneficial effects of FLO on ALI therapy via M1 to M2 macrophage conversion.
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Affiliation(s)
- Zhe Wang
- School of Medicine, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Xingxing Zhang
- School of Medicine, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - De Ming Lv
- Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Sucheng Cao
- Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Guang Yang
- Nanjing Tech University, Nanjing, 210003, China
| | - Zhijian Zhang
- School of Medicine, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
| | - Qingtong Yu
- Laboratory of Drug Delivery and Tissue Regeneration, Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, School of Pharmacy, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
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8
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Wang Y, Zhang S, Zhao Z, Jin Q, Wang Z, Song Z, Liu L, Zhao Z. PSMC2 promotes glioma progression by regulating immune microenvironment and PI3K/AKT/mTOR pathway. Immunobiology 2024; 229:152802. [PMID: 38569452 DOI: 10.1016/j.imbio.2024.152802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 03/25/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Glioma, the most frequent and malignant central nervous system (CNS) cancer, has a bad outcome. Proteasome 26S subunit ATPase 2 (PSMC2) is an essential part of the 26S proteasome and promotes the development of several tumors. However, the pathway and function of PSMC2 in glioma have not been unelucidated. METHODS This study analyzed PSMC2 expression in glioma tissues and its predictive significance for patients. We examined the link between PSMC2 and DNA methylation, immune cell infiltration, tumor immune cycle, immune cell homeostasis, and immune checkpoints. Subsequently, immunohistochemistry and in vitro trials were employed to validate the expression, prognostic potential, and function of PSMC2 in glioma. The mechanisms of PSMC2 in glioma were further explored. RESULTS Our study revealed that PSMC2 expression increased in glioma tissues contrasted with healthy tissues, and patients with high PSMC2 glioma exhibited poor overall survival (OS) compared to the low-PSMC2 group. Immune profile analysis revealed that PSMC2 was positively related to immunosuppressive cell infiltration and immune checkpoints and adversely related to the cancer immune cycle and immune cell homeostasis. In cell-based investigations, the inhibition of PSMC2 was found to effectively suppress the aggressiveness and proliferation of glioma cell lines while also enhancing cell cycle arrest and promoting cell death. Gene Set Enrichment Analysis (GSEA), Gene Set Variation Analysis (GSVA), and in vitro experiments showed that PSMC2 promoted glioma development through the PI3K/AKT/mTOR pathway. CONCLUSIONS PSMC2 was upregulated in glioma and promoted cancer progression by modulating the tumor immune microenvironment, cancer cell biological behavior, immune cell homeostasis, and the PI3K/AKT/mTOR pathway, providing a new option to treat glioma.
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Affiliation(s)
- Yizheng Wang
- Pain Rehabilitation, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Shiyang Zhang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Zijun Zhao
- Spine Center, Sanbo Brain Hospital, Capital Medical University, Beijing 100000, China
| | - Qianxu Jin
- Department of Neurosurgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Zairan Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Beijing 100000, China
| | - Zihan Song
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Liqiang Liu
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China.
| | - Zongmao Zhao
- Department of Neurosurgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050000, China.
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9
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Centini G, Schettini G, Pieri E, Giorgi M, Lazzeri L, Martire FG, Mancini V, Raimondo D, Seracchioli R, Habib N, Fedele F, Zupi E. Endometriosis-Related Ovarian Cancer: Where Are We Now? A Narrative Review towards a Pragmatic Approach. J Clin Med 2024; 13:1933. [PMID: 38610698 PMCID: PMC11012952 DOI: 10.3390/jcm13071933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND Endometriosis affects more than 10% of reproductive-aged women, causing pelvic pain and infertility. Despite the benign nature of endometriosis, ovarian endometriomas carry a higher risk of developing endometrioid carcinomas (EnOCs) and clear cell ovarian carcinomas (CCCs). Atypical endometriosis, defined as cytological atypia resembling intraepithelial cancer, is considered the precursor of endometriosis-associated ovarian cancer (EAOC). This narrative review aims to provide an overview of EAOC, proposing a practical approach to clinical and therapeutic decision making. METHODS An electronic literature search was conducted from inception up to January 2023, using the MEDLINE database via PubMed to evaluate the existing literature on EAOC, including its pathogenesis, the diagnostic process, and the therapeutic possibilities, with articles not relevant to the topic or lacking scientific merit being excluded. RESULTS Eighty-one articles were included in the review to present the current state of the art regarding EAOC. A pragmatic clinical flowchart is proposed to guide therapeutic decisions and improve patient outcomes. CONCLUSIONS Endometriosis patients may have an increased risk of developing EAOC (either EnOC or CCC). Despite not being fully accepted, the concept of AE may reshape the endometriosis-ovarian cancer relationship. Further research is needed to understand the unaddressed issues.
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Affiliation(s)
- Gabriele Centini
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, 53100 Siena, Italy; (G.C.); (G.S.); (E.P.); (L.L.); (F.G.M.)
| | - Giorgia Schettini
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, 53100 Siena, Italy; (G.C.); (G.S.); (E.P.); (L.L.); (F.G.M.)
| | - Emilio Pieri
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, 53100 Siena, Italy; (G.C.); (G.S.); (E.P.); (L.L.); (F.G.M.)
| | - Matteo Giorgi
- Department of Surgical Sciences, Gynecological Unit, Valdarno Hospital, 52025 Montevarchi, Italy
| | - Lucia Lazzeri
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, 53100 Siena, Italy; (G.C.); (G.S.); (E.P.); (L.L.); (F.G.M.)
| | - Francesco Giuseppe Martire
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, 53100 Siena, Italy; (G.C.); (G.S.); (E.P.); (L.L.); (F.G.M.)
- Department of Surgical Sciences, Gynecological Unit, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Virginia Mancini
- Department of Medical Biotechnology, Section of Pathology, University of Siena, 53100 Siena, Italy;
| | - Diego Raimondo
- Division of Gynecology and Human Reproduction Physiopathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (D.R.); (R.S.)
| | - Renato Seracchioli
- Division of Gynecology and Human Reproduction Physiopathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (D.R.); (R.S.)
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
| | - Nassir Habib
- Department of Obstetrics and Gynecology, Francois Quesnay Hospital, 78201 Mantes-la-Jolie, France;
| | - Francesco Fedele
- Department of Obstetrics and Gynecology, Fondazione “Policlinico-Mangiagalli-Regina Elena” University of Milan, 20122 Milan, Italy;
| | - Errico Zupi
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, 53100 Siena, Italy; (G.C.); (G.S.); (E.P.); (L.L.); (F.G.M.)
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Guo M, Liu M, Li W, Wang C, Zhang L, Zhang H. Osteopontin promotes tumor growth and metastasis and GPX4-mediated anti-lipid peroxidation in triple-negative breast cancer by activating the PI3k/Akt/mTOR pathway. J Cancer Res Clin Oncol 2024; 150:155. [PMID: 38526702 PMCID: PMC10963528 DOI: 10.1007/s00432-024-05658-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/20/2024] [Indexed: 03/27/2024]
Abstract
PURPOSE Triple-negative breast cancer (TNBC) features high aggressiveness, metastasis rate, drug resistance as well as poor prognosis. Osteopontin (OPN) is a key protein in the process of osteogenesis and has emerged as a new tumor marker in recent years. METHODS Cell viability was tested with the CCK-8 kit. Transwell and wound healing were adopted to test cell invasive and migratory abilities. Tumor sphere formation was detected by tumor sphere formation assay. Human umbilical vein endothelial cell (HUVEC) tube formation assay was used to measure the angiogenesis of tumor cells. Western blot was applied for the estimation of the expression of cancer stem cell markers, angiogenesis-, signaling pathway-related proteins as well as OPN. Bioinformatics tools predicted OPN expression in breast cancer tissues. The levels of oxidative stress-related markers were assessed with ELISA. Following the overexpression of OPN in MD-MB-436 cells and the addition of the PI3K/AKT/mTOR pathway inhibitor LY294002, the aforementioned functional experiments were implemented again to investigate the mechanism. Finally, in vivo experiments of tumor-bearing mice were performed for further verification. RESULTS The proliferative, invasive, migratory and tumor sphere formation capabilities as well as angiogenesis of TNBC cells were conspicuously increased in contrast to non-TNBC cell lines. OPN expression in TNBC tissues and cells was dramatically enhanced. OPN upregulation significantly elevated cell proliferative, invasive and migratory capabilities as well as tumor sphere formation and angiogenesis. The mechanism might be achieved by activating PI3K/AKT/mTOR signaling to regulate glutathione peroxidase 4 (GPX4)-mediated anti-lipid peroxidation. CONCLUSION OPN promoted tumor sphere formation and angiogenesis in TNBC by activating the PI3K/AKT/mTOR pathway to regulate GPX4-mediated anti-lipid peroxidation levels.
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Affiliation(s)
- Man Guo
- Department of Thyroid and Breast Surgery, Nanyang Central Hospital, No. 312 Gongnong Road, Wancheng District, Nanyang City, 473005, Henan Province, China
| | - Mengyue Liu
- Xinxiang Medical University, Xinxiang City, 453003, Henan Province, China
| | - Weihan Li
- Department of Thyroid and Breast Surgery, Nanyang Central Hospital, No. 312 Gongnong Road, Wancheng District, Nanyang City, 473005, Henan Province, China
| | - Cao Wang
- Department of Thyroid and Breast Surgery, Nanyang Central Hospital, No. 312 Gongnong Road, Wancheng District, Nanyang City, 473005, Henan Province, China
| | - Lu Zhang
- Department of Thyroid and Breast Surgery, Nanyang Central Hospital, No. 312 Gongnong Road, Wancheng District, Nanyang City, 473005, Henan Province, China
| | - Hao Zhang
- Department of Thyroid and Breast Surgery, Nanyang Central Hospital, No. 312 Gongnong Road, Wancheng District, Nanyang City, 473005, Henan Province, China.
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11
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Wang S, Liu B, Su Y, Wang N, Dong P, Xu X, Huang L, Li S, Gu J, Qiu Y, Deng J, Lin Z, Zhou Y. FHL2 promotes the aggressiveness of lung adenocarcinoma by inhibiting autophagy via activation of the PI3K/AKT/mTOR pathway. Thorac Cancer 2024; 15:630-641. [PMID: 38323374 DOI: 10.1111/1759-7714.15234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/08/2024] Open
Abstract
BACKGROUND Increasing evidence indicates that four and a half LIM domains 2 (FHL2) plays a crucial role in the progression of various cancers. However, the biological functions and molecular mechanism of FHL2 in lung adenocarcinoma (LUAD) remain unclear. METHODS We evaluated the prognostic value of FHL2 in LUAD using public datasets and further confirmed its prognostic value with our clinical data. The biological functions of FHL2 in LUAD were evaluated by in vitro and in vivo experiments. Pathway analysis and rescue experiments were subsequently performed to explore the molecular mechanism by which FHL2 promoted the progression of LUAD. RESULTS FHL2 was upregulated in LUAD tissues compared to adjacent normal lung tissues, and FHL2 overexpression was correlated with unfavorable outcomes in patients with LUAD. FHL2 knockdown significantly suppressed the proliferation, migration and invasion of LUAD cells, while FHL2 overexpression had the opposite effect. Mechanistically, FHL2 upregulated the PI3K/AKT/mTOR pathway and subsequently inhibited autophagy in LUAD cells. The effects FHL2 on the proliferation, migration and invasion of LUAD cells are dependent on the inhibition of autophagy, as of induction autophagy attenuated the aggressive phenotype induced by FHL2 overexpression. CONCLUSIONS FHL2 promotes the progression of LUAD by activating the PI3K/AKT/mTOR pathway and subsequently inhibiting autophagy, which can be exploited as a potential therapeutic target for LUAD.
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Affiliation(s)
- Shuaishuai Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Baomo Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yan Su
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Nian Wang
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Peixin Dong
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiongye Xu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Lixia Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Shaoli Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jincui Gu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yanli Qiu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jiating Deng
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ziying Lin
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yanbin Zhou
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Ren H, Yuan Q, Lu J, Xi S, Liu Y, Yang G, Xie Z, Wang B, Ma L, Fu X, Liu J, Zhang Y. Tetrahydropiperine, a natural alkaloid with neuroprotective effects in ischemic stroke. J Chem Neuroanat 2024; 136:102397. [PMID: 38331229 DOI: 10.1016/j.jchemneu.2024.102397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Ischemic stroke (IS) is a life-threatening neurological disease with various pathological mechanisms. Tetrahydropiperine (THP) is a natural alkaloid with protective effects against multiple diseases, such as seizure, and pain. This study was to examine the impact of THP on IS and investigate its potential mechanism. MATERIAL AND METHODS We employed network pharmacology and molecular docking techniques to identify the target proteins of THP for intervention in IS. Adult male Sprague-Dawley rats were used to create a permanent middle cerebral artery occlusion model. PC-12 cells were chosen to establish an oxygen-glucose deprivation (OGD) cell model. Disease modeling followed by nimodipine (NIMO); 3-methyladenine (3-MA) and rapamycin (RAP) interventions. Open field test, Longa score, balance beam test, and forelimb grip test were used to measure motor and neurological functions. The degree of neurological damage recovery was assessed through behavioral analysis, and cerebral infarction volume was determined using TTC staining. Morphological changes were examined through HE and Nissl staining, and ultrastructural changes in neurons were observed using transmission electron microscopy. The protein expression of autophagy and related pathways was analyzed through Western blot (WB). The appropriate hypoxia time and drug concentration were determined using CCK-8 assay, which also measured cell survival rate. RESULTS The network pharmacology findings indicated that the impact of THP on IS was enhanced in the PI3K/Akt signaling pathway. THP demonstrated robust docking capability with proteins associated with the autophagy and PI3K/Akt/mTOR, as indicated by the molecular docking outcomes. THP significantly improved behavioral damage, reduced the area of cerebral infarction, ameliorated histopathological damage from ischemia, increase neuronal survival, and alleviated ultrastructural damage in neurons (P < 0.05). THP enhanced the survival of PC-12 cells induced by OGD and ameliorated the morphological harm to the cells (P < 0.05). THP was found to elevate the quantities of P62, LC3-Ⅰ, PI3K, P-AKt/Akt, and P-mTOR/mTOR proteins while reducing the levels of Atg7 and Beclin1 proteins. The results of transmission electron microscopy showed no autophagosomes in the THP, 3-MA, and 3-MA + THP groups. CONCLUSION The activation of the PI3K/Akt/mTOR signaling pathway by THP inhibits autophagy and provides relief from neurological damage in IS.
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Affiliation(s)
- Hongyan Ren
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China; Key Laboratory of Ningxia Ethnomedicine Modernization, Minority of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Qianqian Yuan
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Jiayuan Lu
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Siyu Xi
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Yanbo Liu
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Guangyu Yang
- Wuhan Railway Vocational College Of Technology, Wuhan 430200, China
| | - Zhixi Xie
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
| | - Bo Wang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
| | - Li Ma
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Xueyan Fu
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China; Key Laboratory of Ningxia Ethnomedicine Modernization, Minority of Education, Ningxia Medical University, Yinchuan 750004, China.
| | - Juan Liu
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China.
| | - Yiwei Zhang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China; Key Laboratory of Ningxia Ethnomedicine Modernization, Minority of Education, Ningxia Medical University, Yinchuan 750004, China.
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Chen Z, Chen Z, Gao S, Shi J, Li X, Sun F. PFOS exposure destroys the integrity of the blood-testis barrier (BTB) through PI3K/AKT/mTOR-mediated autophagy. Reprod Biol 2024; 24:100846. [PMID: 38160586 DOI: 10.1016/j.repbio.2023.100846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/20/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Perfluorooctanesulfonate or perfluorooctane sulfonic acid (PFOS), a type of perfluorinated compound, is mainly found in consumer products. Exposure to PFOS could cause male reproductive toxicity by causing injury to the blood-testis barrier (BTB). However, the specific mechanisms through which PFOS affects male reproduction remain unclear. The mammalian target of rapamycin (mTOR) is a vital protein kinase that is believed to be a central regulator of autophagy. In this study, we established in vivo and in vitro models to explore the effects of PFOS on the BTB, autophagy, and the regulatory role of the mTOR signaling pathway. Adult mice were developmentally exposed to 0, 0.5, 5, and 10 mg/kg/day PFOS for five weeks. Thereafter, their testicular morphology, sperm counts, serum testosterone, expression of BTB-related proteins, and autophagy-related proteins were evaluated. Additionally, TM4 cells (a mouse Sertoli cell line) were used to delineate the molecular mechanisms that mediate the effects of PFOS on BTB. Our results demonstrated that exposure to PFOS induced BTB injury and autophagy, as evidenced by increased expression of autophagy-related proteins, accumulation of autophagosomes, observed through representative electron micrographs, and decreased activity of the PI3K/AKT/mTOR pathway. Moreover, treatment with chloroquine, an autophagy inhibitor, alleviated the effects of PFOS on the integrity of TM4 cells in the BTB and the PI3K/AKT/mTOR pathway. Overall, this study highlights that exposure to PFOS destroys the integrity of the BTB through PI3K/AKT/mTOR-mediated autophagy.
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Affiliation(s)
- Zifeng Chen
- Institute of Reproductive Medicine, Medical School of Nantong University, Nantong 226001, China
| | - Zhengru Chen
- Institute of Reproductive Medicine, Medical School of Nantong University, Nantong 226001, China
| | - Sheng Gao
- Institute of Reproductive Medicine, Medical School of Nantong University, Nantong 226001, China
| | - Jie Shi
- Institute of Reproductive Medicine, Medical School of Nantong University, Nantong 226001, China
| | - Xinyao Li
- Institute of Reproductive Medicine, Medical School of Nantong University, Nantong 226001, China
| | - Fei Sun
- Institute of Reproductive Medicine, Medical School of Nantong University, Nantong 226001, China.
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Wu C, Chen S, Wu Z, Xue J, Zhang W, Wang S, Xindong Zhao, Wu S. Chidamide and orelabrutinib synergistically induce cell cycle arrest and apoptosis in diffuse large B-cell lymphoma by regulating the PI3K/AKT/mTOR pathway. J Cancer Res Clin Oncol 2024; 150:98. [PMID: 38381215 PMCID: PMC10881688 DOI: 10.1007/s00432-024-05615-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/08/2024] [Indexed: 02/22/2024]
Abstract
OBJECTIVE The initial therapeutic approach for diffuse large B-cell lymphoma (DLBCL) entails a rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) regimen. However, 40% of patients exhibit suboptimal responses, with some experiencing relapse and refractory conditions. This study aimed to explore novel therapeutic strategies and elucidate their underlying mechanisms in DLBCL. METHODS Bioinformatics techniques were employed to scrutinize correlations between the HDAC1, HDAC2, HDAC3, HDAC10, BTK, MYC, TP53, and BCL2 genes in DLBCL. In vitro experiments were conducted using DB and SU-DHL-4 cells treated with chidamide, orelabrutinib, and a combination of both. Cell viability was assessed by cell counting kit-8. Cell apoptosis and the cell cycle were determined using flow cytometry. Reactive oxygen species (ROS) production and mitochondrial function were assessed through ROS and JC-1 staining. RNA sequencing and western blot analyses were conducted to elucidate the molecular mechanisms underlying the combined action of chidamide and orelabrutinib in DLBCL cells. RESULTS This investigation revealed markedly enhanced antiproliferative effects when chidamide was combined with orelabrutinib. Compusyn software analysis indicated a synergistic effect of chidamide and orelabrutinib in inhibiting DLBCL cell proliferation, with a combination index (CI) < 1. This synergy further manifested as augmented cell cycle arrest, apoptosis induction, the downregulation of cell cycle-associated and antiapoptotic proteins, and the upregulation of proapoptotic proteins. Furthermore, the western blot and RNA-Seq findings suggested that combining chidamide and orelabrutinib modulated the PI3K/AKT/mTOR signaling pathway, thereby promoting DLBCL cell cycle arrest and apoptosis. CONCLUSION The findings of this study provide a compelling justification for the clinical utilization of chidamide and orelabrutinib to treat relapsed/refractory DLBCL.
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Affiliation(s)
- Chunyan Wu
- Department of Hematology, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Shilv Chen
- Department of Hematology, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Zhimin Wu
- Department of Hematology, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Jiao Xue
- Department of Hematology, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Wen Zhang
- Department of Hematology, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Shan Wang
- Department of Hematology, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Xindong Zhao
- Department of Medicine, Qingdao University, Qingdao, China
| | - Shaoling Wu
- Department of Hematology, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266003, Shandong, China.
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15
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Xiao W, Liu Y, Dai M, Li Y, Peng R, Yu S, Liu H. [Retracted] Rotenone restrains colon cancer cell viability, motility and epithelial‑mesenchymal transition and tumorigenesis in nude mice via the PI3K/AKT pathway. Int J Mol Med 2024; 53:16. [PMID: 38099365 PMCID: PMC10781416 DOI: 10.3892/ijmm.2023.5340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 03/06/2020] [Indexed: 01/13/2024] Open
Abstract
Following the publication of this paper, it was drawn to the Editor's attention by a concerned reader that the immunofluorescence staining data shown in Fig. 3C, and the migration and invasion assay data shown in Figs. 4C and 4D were strikingly similar to data appearing in different form in other research articles written by different authors at different research institutes that had either already been published, or were submitted for publication at around the same time, one of which has been retracted. In addition, the western blotting data shown for the E‑cadherin and AKT protein bands in Fig. 5 were strikingly similar, albeit the bands had been flipped vertically. Owing to the fact that contentious data in the above article had already been submitted for publication elsewhere prior to its submission to International Journal of Molecular Medicine, the Editor has decided that this paper should be retracted from the Journal. The authors were asked for an explanation to account for these concerns, but the Editorial Office did not receive a reply. The Editor apologizes to the readership for any inconvenience caused. [International Journal of Molecular Medicine 44: 700‑708, 2020; DOI: 10.3892/ijmm.2020.4637].
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Affiliation(s)
- Wenbo Xiao
- Department of Digestion, University‑Town Hospital of Chongqing Medical University, Chongqing 401331, P.R. China
| | - Yongwei Liu
- Department of Infection, Rongchang District People's Hospital of Chongqing, Chongqing 402460, P.R. China
| | - Maolin Dai
- Department of Anesthesia, Rongchang District People's Hospital of Chongqing, Chongqing 402460, P.R. China
| | - Yu Li
- Department of Digestion, Rongchang District People's Hospital of Chongqing, Chongqing 402460, P.R. China
| | - Renqun Peng
- Department of Digestion, Rongchang District People's Hospital of Chongqing, Chongqing 402460, P.R. China
| | - Shuangjiang Yu
- Department of Neurosurgery, The First Hospital Affiliated to Army Military Medical University (Southwest Hospital), Chongqing 400038, P.R. China
| | - Hao Liu
- Department of Digestion, Rongchang District People's Hospital of Chongqing, Chongqing 402460, P.R. China
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Pang N, Tudahong S, Zhu Y, He J, Han C, Chen G, Wang W, Wang J, Ding J. Galectin-9 alleviates acute graft-versus-host disease after haplo-hematopoietic stem cell transplantation by regulating regulatory T cell/effector T cell imbalance. Immun Inflamm Dis 2024; 12:e1177. [PMID: 38353382 PMCID: PMC10865418 DOI: 10.1002/iid3.1177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND Acute graft-versus-host disease (aGVHD) arises from the imbalance of host T cells. Galectin-9 negatively regulates CD4 effector T cell (Th1 and Th17) function by binding to Tim-3. However, the relationship between Galectin-9/Tim-3 and CD4+ T subsets in patients with aGVHD after Haplo-HSCT (haploidentical peripheral blood hematopoietic stem cell transplantation) has not been fully elucidated. Here, we investigated the role of Galectin-9 and CD4+ T subsets in aGVHD after haplo-HSCT. METHODS Forty-two patients underwent Haplo-HSCT (26 without aGVHD and 16 with aGVHD), and 20 healthy controls were included. The concentrations of Galectin-9, interferon-gamma (IFN-γ), interleukin (IL)-4, transforming growth factor (TGF)-β, and IL-17 in the serum and culture supernatant were measured using enzyme-linked immunosorbent assay or cytometric bead array. The expression levels of Galectin-9, PI3K, p-PI3K, and p-mTOR protein were detected by western blot analysis. Flow cytometry was used to analyze the proportions of CD4+ T cell subsets. Bioinformatics analysis was performed. RESULTS In patients with aGVHD, regulatory T (Treg) cells and Galectin-9 decreased, and the Th1, Th17, and Treg cells were significantly imbalanced. Moreover, Treg and Galectin-9 were rapidly reconstituted in the early stage of patients without aGVHD after Haplo-HSCT, but Th17 cells were reconstituted slowly. Furthermore, Tim-3 upregulation on Th17 and Th1 cells was associated with excessive activation of the PI3K/AKT pathway in patients with aGVHD. Specifically, in vitro treatment with Galectin-9 reduced IFN-γ and IL-17 production while augmenting TGF-β secretion. Bioinformatics analysis suggested the potential involvement of the PI3K/AKT/mTOR pathway in aGVHD. Mechanistically, exogenous Galectin-9 was found to mitigate aGVHD by restoring the Treg/Teffs (effector T cells) balance and suppressing PI3K. CONCLUSION Galectin-9 may ameliorate aGVHD after haplo-HSCT by modulating Treg/Teffs balance and regulating the PI3K/AKT/mTOR pathway. Targeting Galectin-9 may hold potential value for the treatment of aGVHD.
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Affiliation(s)
- Nannan Pang
- Department of PathologyThe First Affiliated Hospital of Shihezi UniversityShiheziChina
| | - Shabaaiti Tudahong
- Center of Hematology, The First Affiliated Hospital of Xinjiang Medical UniversityXinjiang Uygur Autonomous Region Research Institute of HematologyUrumqiChina
| | - Yuejie Zhu
- Reproductive Fertility Assistance CenterThe First Affiliated Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Jiang He
- Department of Laboratory MedicineGeneral Hospital of Xinjiang Military Region, PLAUrumqiChina
| | - Chunxia Han
- Center of Hematology, The First Affiliated Hospital of Xinjiang Medical UniversityXinjiang Uygur Autonomous Region Research Institute of HematologyUrumqiChina
| | - Gang Chen
- Center of Hematology, The First Affiliated Hospital of Xinjiang Medical UniversityXinjiang Uygur Autonomous Region Research Institute of HematologyUrumqiChina
| | - Weiguo Wang
- Department of Urology, Suzhou Hospital, Affiliated Hospital of Medical SchoolNanjing UniversitySuzhouChina
| | - Jing Wang
- Xinjiang Laboratory of Respiratory Disease ResearchTraditional Chinese Medicine Hospital Affiliated to Xinjiang Medical UniversityUrumqiChina
| | - Jianbing Ding
- Reproductive Fertility Assistance CenterThe First Affiliated Hospital of Xinjiang Medical UniversityUrumqiChina
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Gu D, Ye M, Zhu G, Bai J, Chen J, Yan L, Yu P, Lu F, Hu C, Zhong Y, Liu P, He Q, Tang Q. Hypoxia upregulating ACSS2 enhances lipid metabolism reprogramming through HMGCS1 mediated PI3K/AKT/mTOR pathway to promote the progression of pancreatic neuroendocrine neoplasms. J Transl Med 2024; 22:93. [PMID: 38263056 PMCID: PMC10804556 DOI: 10.1186/s12967-024-04870-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 01/08/2024] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Pancreatic neuroendocrine neoplasms (pNENs) are relatively rare. Hypoxia and lipid metabolism-related gene acetyl-CoA synthetase 2 (ACSS2) is involved in tumor progression, but its role in pNENs is not revealed. This study showed that hypoxia can upregulate ACSS2, which plays an important role in the occurrence and development of pNENs through lipid metabolism reprogramming. However, the precise role and mechanisms of ACSS2 in pNENs remain unknown. METHODS mRNA and protein levels of ACSS2 and 3-hydroxy-3-methylglutaryl-CoA synthase1 (HMGCS1) were detected using quantitative real-time PCR (qRT-PCR) and Western blotting (WB). The effects of ACSS2 and HMGCS1 on cell proliferation were examined using CCK-8, colony formation assay and EdU assay, and their effects on cell migration and invasion were examined using transwell assay. The interaction between ACSS2 and HMGCS1 was verified by Co-immunoprecipitation (Co-IP) experiments, and the functions of ACSS2 and HMGCS1 in vivo were determined by nude mouse xenografts. RESULTS We demonstrated that hypoxia can upregulate ACSS2 while hypoxia also promoted the progression of pNENs. ACSS2 was significantly upregulated in pNENs, and overexpression of ACSS2 promoted the progression of pNENs and knockdown of ACSS2 and ACSS2 inhibitor (ACSS2i) treatment inhibited the progression of pNENs. ACSS2 regulated lipid reprogramming and the PI3K/AKT/mTOR pathway in pNENs, and ACSS2 regulated lipid metabolism reprogramming through the PI3K/AKT/mTOR pathway. Co-IP experiments indicated that HMGCS1 interacted with ACSS2 in pNENs. Overexpression of HMGCS1 can reverse the enhanced lipid metabolism reprogramming and tumor-promoting effects of knockdown of ACSS2. Moreover, overexpression of HMGCS1 reversed the inhibitory effect of knockdown of ACSS2 on the PI3K/AKT/mTOR pathway. CONCLUSION Our study revealed that hypoxia can upregulate the lipid metabolism-related gene ACSS2, which plays a tumorigenic effect by regulating lipid metabolism through activating the PI3K/AKT/mTOR pathway. In addition, HMGCS1 can reverse the oncogenic effects of ACSS2, providing a new option for therapeutic strategy.
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Affiliation(s)
- Danyang Gu
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Mujie Ye
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Guoqin Zhu
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Jianan Bai
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Jinhao Chen
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Lijun Yan
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Ping Yu
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Feiyu Lu
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Chunhua Hu
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Yuan Zhong
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China
| | - Pengfei Liu
- Department of Gastroenterology, Jiangyin People's Hospital, Jiangsu, China.
| | - Qibin He
- Department of Gastroenterology, The Affiliated Jiangning Hospital of Nanjing Medical University, Jiangsu, China.
| | - Qiyun Tang
- Department of Geriatric Gastroenterology, Institute of Neuroendocrine Tumor, Neuroendocrine Tumor Center, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, China.
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Sharma P, Chaturvedi S, Khan MA, Rai Y, Bhatt AN, Najmi AK, Akhtar M, Mishra AK. Nanoemulsion potentiates the anti-cancer activity of Myricetin by effective inhibition of PI3K/AKT/mTOR pathway in triple-negative breast cancer cells. Med Oncol 2024; 41:56. [PMID: 38218749 DOI: 10.1007/s12032-023-02274-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 11/28/2023] [Indexed: 01/15/2024]
Abstract
Triple-negative breast cancer (TNBC) is a heterogeneous tumor with a poor prognosis and high metastatic potential, resulting in poor clinical outcomes, necessitating investigation to devise effective therapeutic strategies. Multiple studies have substantiated the anti-cancer properties of the naturally occurring flavonoid "Myricetin" in various malignancies. However, the therapeutic application of Myricetin is impeded by its poor water solubility and low oral bioavailability. To overcome this limitation, we aimed to develop nanoemulsion of Myricetin (Myr-NE) and evaluate its advantage over Myricetin alone in TNBC cells. The nanoemulsion was formulated using Capryol 90 (oil), Tween 20 (surfactant), and Transcutol HP (co-surfactant). The optimized nano-formulation underwent an evaluation to determine its size, zeta potential, morphology, stability, drug encapsulation efficiency, and in vitro release properties. The anti-cancer activity of Myr-NE was further studied to examine its distinct impact on intracellular drug uptake, cell-viability, anti-tumor signaling, oxidative stress, clonogenicity, and cell death, compared with Myricetin alone in MDA-MB-231 (TNBC) cells. The in vitro drug release and intracellular drug uptake of Myricetin was significantly increased in Myr-NE formulation as compared to Myricetin alone. Moreover, Myr-NE exhibited significant inhibition of cell proliferation, clonogenicity, and increased apoptosis with ~ 2.5-fold lower IC50 as compared to Myricetin. Mechanistic investigation revealed that nanoemulsion augmented the anti-cancer efficacy of Myricetin, most likely by inhibiting the PI3K/AKT/mTOR pathway, eventually leading to enhanced cell death in TNBC cells. The study provides substantial experimental evidence to support the notion that the Myr-NE formulation has the potential to be an effective therapeutic drug for TNBC treatment.
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Affiliation(s)
- Preeti Sharma
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard (Hamdard University), New Delhi, 110062, India
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Timarpur, Delhi, 110054, India
| | - Shubhra Chaturvedi
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Timarpur, Delhi, 110054, India
| | - Mohammad Ahmed Khan
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard (Hamdard University), New Delhi, 110062, India
| | - Yogesh Rai
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Timarpur, Delhi, 110054, India
| | - Anant Narayan Bhatt
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Timarpur, Delhi, 110054, India
| | - Abul Kalam Najmi
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard (Hamdard University), New Delhi, 110062, India
| | - Mohd Akhtar
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard (Hamdard University), New Delhi, 110062, India.
| | - Anil Kumar Mishra
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Timarpur, Delhi, 110054, India.
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Chen Y, Chen S, Chen K, Ji L, Cui S. Magnolol and 5-fluorouracil synergy inhibition of metastasis of cervical cancer cells by targeting PI3K/AKT/mTOR and EMT pathways. Chin Herb Med 2024; 16:94-105. [PMID: 38375055 PMCID: PMC10874772 DOI: 10.1016/j.chmed.2023.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/29/2022] [Accepted: 01/16/2023] [Indexed: 02/21/2024] Open
Abstract
Objective This study is designed to investigate the mode of action of the synergistic effect of 5-fluorouracil (5-FU) and magnolol against cervical cancer. Methods Network pharmacological approach was applied to predict the molecular mechanism of 5-FU combined with magnolol against cervical cancer. CCK-8 assay, colony formation assay, immunofluorescence staining, adhesion assay, wound healing mobility assay, cell migration and invasion assay and Western blot analysis were conducted to validate the results of in silico study. Results Phosphatidylinositol 3 kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway was identified as the key pathway in silico study. The experimental results showed that 5-FU combined with magnolol strongly inhibited cervical cancer cell proliferation, induced the morphological change of HeLa cells by down-regulating the expression of α-actinin, tensin-2 and vinculin. Moreover, magnolol enhanced inhibitory effect of 5-FU on the cell adhesion, migration and invasion. The phosphorylation of AKT and PI3K and the expression of mTOR were strongly inhibited by the combination of 5-FU and magnolol. Moreover, the expression of E-cadherin and β-catenin was upregulated and the expression of Snail, Slug and vimentin was down-regulated by the 5-FU together with magnolol. Conclusion Taken together, this study suggests that 5-FU combined with magnolol exerts a synergistic anti-cervical cancer effect by regulating the PI3K/AKT/mTOR and epithelial-mesenchymal transition (EMT) signaling pathways.
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Affiliation(s)
- Yuanyuan Chen
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College of Yangzhou University, Yangzhou 225009, China
| | - Shanshan Chen
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College of Yangzhou University, Yangzhou 225009, China
| | - Kaiting Chen
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College of Yangzhou University, Yangzhou 225009, China
| | - Lanfang Ji
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College of Yangzhou University, Yangzhou 225009, China
| | - Shuna Cui
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Medical College of Yangzhou University, Yangzhou 225009, China
- Department of Gynecology and Obstetrics, Affiliated Hospital of Yangzhou University, Yangzhou 225009, China
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20
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Xin S, Xiaoxuan L, Yixuan Z, Zhikang C. Leptin promotes proliferation of human undifferentiated spermatogonia by activating the PI3K/AKT/mTOR pathway. Am J Reprod Immunol 2024; 91:e13811. [PMID: 38282611 DOI: 10.1111/aji.13811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/17/2023] [Accepted: 12/29/2023] [Indexed: 01/30/2024] Open
Abstract
BACKGROUND Male infertility is a common disease affecting male reproductive health. Leptin is an important hormone that regulates various physiological processes, including reproductive function. However, few experimental studies have been carried out to elucidate the mechanism of leptin's effects on male reproductive function. OBJECTIVE The purpose of this study was to investigate the effects of leptin on testicular spermatogenesis and its mechanism, so as to provide potential targets for the treatment of patients with spermatogenic dysfunction. METHODS Testicular tissues were collected from eight prostate cancer patients undergoing surgical castration. GPR125-positive spermatogonia were isolated by two consecutive magnetic activated cell sorting (MACS), followed by incubation with conditioned medium. To identify the signaling pathway(s) involved in the effects of leptin, undifferentiated spermatogonia were treated with different concentrations of leptin and antagonists of leptin-related pathways. The proliferative effect of leptin was evaluated by cell counting using a hemocytometer. Expressions of p-AKT, p-ERK, p-STAT, and p-S6K were determined by western blotting analysis. RESULTS Leptin promoted the growth of human GPR125-positive spermatogonia in a concentration-dependent manner. The most significant proliferative effect was observed using 100 ng/mL leptin after 6 days of culture. Leptin significantly increased the phosphorylation of STAT3, AKT, and ERK in undifferentiated spermatogonia. Phosphatidylinositol 3-kinase (PI3K) inhibitor LY294002 inhibited the leptin-induced activation of AKT, ERK, and downstream S6K. Treatment with the mammalian target of rapamycin (mTOR) inhibitor rapamycin also inhibited S6K phosphorylation. Moreover, both LY294002 and rapamycin were found to inhibit the leptin-induced proliferation of undifferentiated spermatogonia. These results suggested that the leptin-induced proliferation of GPR125-positive spermatogonia was dependent on the PI3K/AKT/mTOR pathway. Further exploration of proliferation and apoptotic markers suggested that leptin may alleviate cell apoptosis by regulating the expression of Bax and FasL. CONCLUSIONS A certain concentration of leptin (25∼100 ng/mL) could promote proliferation of undifferentiated spermatogonia, which was mediated by PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Song Xin
- Department of Urology, Gongli Hospital of Shanghai Pudong New Area, Shanghai, China
| | - Li Xiaoxuan
- School of Medicine, Qingdao University, Qingdao, China
| | - Zhang Yixuan
- School of Medicine, Qingdao University, Qingdao, China
| | - Cai Zhikang
- Department of Urology, Gongli Hospital of Shanghai Pudong New Area, Shanghai, China
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21
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Niu H, Zhang M, Liu M, Yang L, Yang L, Ren J, Yu Y, Liu Y, Xing L, Shao Z, Wang H. Thymocyte selection-associated high mobility box protein regulates T lymphocytes exhaustion in patients with myelodysplastic syndromes by inhibiting PI3K/AKT/mTOR pathway. Hematol Oncol 2024; 42:e3224. [PMID: 37712442 DOI: 10.1002/hon.3224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 08/31/2023] [Accepted: 09/02/2023] [Indexed: 09/16/2023]
Abstract
Myelodysplastic syndromes (MDS) patients often experience CD8+ T lymphocytes exhaustion, which plays a crucial role in the development of MDS. However, the specific role of thymocyte selection-associated high mobility box protein (TOX) in the CD8+ T lymphocytes exhaustion in MDS patients remains unclear. In this study, we investigated the role of TOX in CD8+ T lymphocytes exhaustion in patients with MDS. The expression of TOX, inhibitory receptors (IRs), and functional molecules in peripheral blood T lymphocytes of MDS patients and normal controls were detected using flow cytometry. Lentiviral transduction was used to create stable TOX-knockdown CD8+ T lymphocytes, and small interfering RNA (si-RNA) was used to knock down TOX in Jurkat cells. The expression of TOX was found to be significantly higher in CD8+ T lymphocytes of MDS patients compared to normal controls. This was associated with upregulated IRs and reduced expression of functional molecules such as Granzyme and Perforin. Myelodysplastic syndromes patients with higher TOX expression had poor clinical indicators and shorter survival. Knockdown of TOX using sh-RNA partially reverses the exhausted phenotype and enhances the lethality of CD8+ T lymphocytes. Moreover, the knockdown of TOX using si-RNA in Jurkat cells improved cell proliferation activity, down-regulated IRs and activated PI3K/AKT/mTOR signaling pathway. TOX promotes the exhaustion of CD8+ T lymphocytes by inhibiting PI3K/AKT/mTOR pathway, and targeted inhibition of TOX could partially restore the effector functions and activity of CD8+ T lymphocytes.
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Affiliation(s)
- Haiyue Niu
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Mengying Zhang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Mengyuan Liu
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Liyan Yang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Liping Yang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Jie Ren
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Yating Yu
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Yumei Liu
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Limin Xing
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Zonghong Shao
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Huaquan Wang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
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Deng X, Ning Z, Li L, Cui Z, Du X, Amevor FK, Tian Y, Shu G, Du X, Han X, Zhao X. High expression of miR-22-3p in chicken hierarchical follicles promotes granulosa cell proliferation, steroidogenesis, and lipid metabolism via PTEN/PI3K/Akt/mTOR signaling pathway. Int J Biol Macromol 2023; 253:127415. [PMID: 37848113 DOI: 10.1016/j.ijbiomac.2023.127415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/19/2023]
Abstract
MicroRNAs (miRNAs) are a class of RNA macromolecules that play regulatory roles in follicle development by inhibiting protein translation through binding to the 3'UTR of its target genes. Granulosa cell (GC) proliferation, steroidogenesis, and lipid metabolism have indispensable effect during folliculogenesis. In this study, we found that miR-22-3p was highly expressed in the hierarchical follicles of the chickens, which indicated that it may be involved in follicle development. The results obtained suggested that miR-22-3p promoted proliferation, hormone secretion (progesterone and estrogen), and the content of lipid droplets (LDs) in the chicken primary GC. The results from the bioinformatics analysis, luciferase reporter assay, qRT-PCR, and Western blotting, confirmed that PTEN was directly targeted to miR-22-3p. Subsequently, it was revealed that PTEN inhibited proliferation, hormone secretion, and the content of LDs in GC. Therefore, this study showed that miR-22-3p could activate PI3K/Akt/mTOR pathway via targeting PTEN. Taken together, the findings from this study indicated that miR-22-3p was highly expressed in the hierarchical follicles of chickens, which promotes GC proliferation, steroidogenesis, and lipid metabolism by repressing PTEN to activate PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Xun Deng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, PR China; Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, PR China
| | - Zifan Ning
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, PR China; Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, PR China
| | - Liang Li
- Institute of Animal Husbandry and Veterinary Medicine, Guizhou Academy of Agricultural Sciences, Guiyang, PR China; Guizhou Hongyu Animal Husbandry Technology Development Co., Ltd, Guiyang, PR China
| | - Zhifu Cui
- College of Animal Science and Technology, Southwest University, Chongqing, PR China
| | - Xiaxia Du
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, PR China; Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, PR China
| | - Felix Kwame Amevor
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, PR China; Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, PR China
| | - Yaofu Tian
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, PR China; Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, PR China
| | - Gang Shu
- Department of Basic Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaohui Du
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, PR China; Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, PR China
| | - Xue Han
- Institute of Animal Husbandry and Veterinary Medicine, Guizhou Academy of Agricultural Sciences, Guiyang, PR China; Guizhou Hongyu Animal Husbandry Technology Development Co., Ltd, Guiyang, PR China.
| | - Xiaoling Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, PR China; Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, PR China.
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Jin J, He J, Li X, Ni X, Jin X. The role of ubiquitination and deubiquitination in PI3K/AKT/mTOR pathway: A potential target for cancer therapy. Gene 2023; 889:147807. [PMID: 37722609 DOI: 10.1016/j.gene.2023.147807] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
The PI3K/AKT/mTOR pathway controls key cellular processes, including proliferation and tumor progression, and abnormally high activation of this pathway is a hallmark in human cancers. The post-translational modification, such as Ubiquitination and deubiquitination, fine-tuning the protein level and the activity of members in this pathway play a pivotal role in maintaining normal physiological process. Emerging evidence show that the unbalanced ubiquitination/deubiquitination modification leads to human diseases via PI3K/AKT/mTOR pathway. Therefore, a comprehensive understanding of the ubiquitination/deubiquitination regulation of PI3K/AKT/mTOR pathway may be helpful to uncover the underlying mechanism and improve the potential treatment of cancer via targeting this pathway. Herein, we summarize the latest research progress of ubiquitination and deubiquitination of PI3K/AKT/mTOR pathway, systematically discuss the associated crosstalk between them, as well as focus the clinical transformation via targeting ubiquitination process.
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Affiliation(s)
- Jiabei Jin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jian He
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Xinming Li
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Xiaoqi Ni
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Xiaofeng Jin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, China.
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Naveed M, Malik A, Anjum H, Ijaz B. LncRNA MALAT1 Expression Regulates Breast Cancer Progression via PI3K/AKT/mTOR Pathway Modulation. Biochem Genet 2023:10.1007/s10528-023-10592-6. [PMID: 38110774 DOI: 10.1007/s10528-023-10592-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 11/07/2023] [Indexed: 12/20/2023]
Abstract
Breast cancer is a significant health challenge for women globally, including the Pakistani population. Numerous pathways and small molecules like noncoding ribonucleotides are implicated in breast cancer development and progression. Among these, lncRNAs, have garnered considerable attention due to their role in breast cancer tumorigenesis and metastasis. In the current study involving 52 mammary tumor samples from the Pakistani population, the expression of lncRNA MALAT1 (metastasis associated lung adenocarcinoma transcript 1) was studied via RT-PCR (Real-Time polymerase chain reaction). In addition, PI3K/AKT/mTOR pathway expression was also assessed through RT-PCR and immunohistochemistry in breast cancer patient samples. The study also investigated the cross-talk of lncRNA MALAT1 and PI3K pathway genes by inhibiting it with PI3K inhibitor (LY294002) in MDA-MB-231 cell line. Furthermore, lncRNA MALAT1 was silenced in MDA-MB-231 cells using siRNA to determine its impact on breast cancer proliferation and metastasis. The results revealed an upregulated expression of MALAT1 and PI3K/AKT/mTOR pathway genes in grade II and III breast tissue samples before chemotherapy. The proliferation, growth, and invasion of breast cancer cells were significantly reduced upon MALAT1 silencing in MDA-MB-231. Further, its downregulation substantially reduced the PI3K pathway expression levels at mRNA and protein levels. In conclusion, the current study suggests that MALAT1 could serve as a therapeutic target for breast cancer, underscoring its role in breast cancer proliferation and metastasis. Moreover, the study proposes a mechanism of action of MALAT1, demonstrating that its inhibition can reduce the expression of the PI3K/AKT/mTOR axis. These findings emphasize the potential significance of targeting MALAT1 as a therapeutic strategy for breast cancer, and further exploration of this interaction is warranted to gain deeper insight into the molecular mechanism of this lncRNA.
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Affiliation(s)
- Mariam Naveed
- Centre of Excellence in Molecular Biology, University of the Punjab, 87-West Canal Road Thokar Niaz Baig , Lahore, 53700, Pakistan
| | - Ayesha Malik
- Centre of Excellence in Molecular Biology, University of the Punjab, 87-West Canal Road Thokar Niaz Baig , Lahore, 53700, Pakistan
| | - Hamza Anjum
- Centre of Excellence in Molecular Biology, University of the Punjab, 87-West Canal Road Thokar Niaz Baig , Lahore, 53700, Pakistan
| | - Bushra Ijaz
- Laboratory of Applied and Functional Genomics, Centre of Excellence in Molecular Biology (CEMB), University of the Punjab, 87-West Canal Bank Road, Lahore, 53700, Pakistan.
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Wang C, Zou K, Diao Y, Zhou C, Zhou J, Yang Y, Zeng Z. Liensinine alleviates LPS-induced acute lung injury by blocking autophagic flux via PI3K/AKT/mTOR signaling pathway. Biomed Pharmacother 2023; 168:115813. [PMID: 37922654 DOI: 10.1016/j.biopha.2023.115813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/16/2023] [Accepted: 10/27/2023] [Indexed: 11/07/2023] Open
Abstract
Acute lung injury (ALI) is a major pathological problem characterized by severe inflammatory reactions and is a critical disease with high clinical morbidity and mortality. Liensinine, a major isoquinoline alkaloid, is extracted from the green embryos of mature Nelumbonaceae seeds. It has been reported to have an inhibitory effect on tumors. However, the effects of liensinine on ALI have not been reported to-date. The aim of this study was to explore the inhibitory effects of liensinine on lipopolysaccharide (LPS)-induced ALI and its possible mechanism. We found that liensinine significantly reduced LPS-induced ALI and reduced the production of inflammatory factors IL-6, IL-8, and TNF-α. In addition, liensinine blocked autophagic flux and increased the number of autophagosomes by upregulating LC3-II/I and p62 protein levels. More importantly, pretreatment with the early stages autophagy inhibitor 3-Methyladenine (3-MA) can reverse the inhibitory effects of liensinine on the secretion of inflammatory factors in ALI. The PI3K/AKT/mTOR pathway is involved in LPS-induced autophagy regulated by liensinine in ALI. In summary, this study suggests that liensinine inhibits the production of inflammatory factors in LPS-induced ALI by regulating autophagy via the PI3K/AKT/mTOR pathway, which may provide a new therapeutic strategy to alleviate ALI.
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Affiliation(s)
- Cheng Wang
- Department of Critical Care Medicine, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Jiangxi Institute of Respiratory Disease, Nanchang 330052, China
| | - Kang Zou
- Department of Critical Care Medicine, the First Affiliated Hospital of Gannan Medical College, Gannan Medical College, Ganzhou 341000, China
| | - Yunlian Diao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Jiangxi Institute of Respiratory Disease, Nanchang 330052, China
| | - Chaoqi Zhou
- Department of Critical Care Medicine, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jia Zhou
- Department of Critical Care Medicine, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Jiangxi Institute of Respiratory Disease, Nanchang 330052, China
| | - Yuting Yang
- Department of Critical Care Medicine, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Zhenguo Zeng
- Department of Critical Care Medicine, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
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Yang Y, Ma S, Ye Z, Zheng Y, Zheng Z, Liu X, Zhou X. Oncogenic DNA methyltransferase 1 activates the PI3K/AKT/mTOR signalling by blocking the binding of HSPB8 and BAG3 in melanoma. Epigenetics 2023; 18:2239607. [PMID: 37523636 PMCID: PMC10392740 DOI: 10.1080/15592294.2023.2239607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 02/27/2023] [Accepted: 04/07/2023] [Indexed: 08/02/2023] Open
Abstract
Abnormal DNA methylation has been observed in multiple malignancies, including melanoma. In this study, we initially noticed the overexpression of DNA methyltransferase 1 (DNMT1) in melanoma samples in bioinformatics analysis and, subsequently, validated it in the purchased melanoma cell lines. After treatment with short-hairpin RNAs or Decitabine (a DNA methylation inhibitor), silencing of DNMT1 was demonstrated to suppress cell viability and invasive and migratory potentials as well as to augment apoptosis and autophagy in melanoma cells. To further explore the downstream mechanisms, we revealed that DNMT1 inhibited HSPB8 expression through augmenting HSPB8 methylation, thereby suppressing the binding between HSPB8 and BAG3. Then, we elucidated through a series of gain- and loss- of function assays that the interplay of HSPB8 and BAG3 blocked the PI3K/AKT/mTOR pathway, thereby repressing the malignant phenotypes of melanoma cells and contributing to melanoma cell apoptosis and autophagy. We further established a mouse model of melanoma and substantiated that DNMT1 enhanced the in vivo tumorigenesis of melanoma cells via activation of the PI3K/AKT/mTOR pathway through repressing the binding between HSPB8 and BAG3. Taken together, our data supported that DNMT1 repressed the binding between HSPB8 and BAG3 and activated the PI3K/AKT/mTOR pathway, thus playing a tumour-promoting role in melanoma.
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Affiliation(s)
- Yemei Yang
- Department of Dermatology and Venerology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, P. R. China
| | - Shengfang Ma
- Department of Dermatology, Baoshihua Hospital of Gansu Province, Lanzhou, P. R. China
| | - Zi Ye
- College of Information and Sciences, The Pennsylvania State University, University of Pennsylvania, Philadelphia, USA
| | - Yushi Zheng
- Department of Dermatology and Venerology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, P. R. China
| | - Zhenjiong Zheng
- Department of Dermatology and Venerology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, P. R. China
| | - Xiongshan Liu
- Department of Dermatology and Venerology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, P. R. China
| | - Xianyi Zhou
- Department of Dermatology and Venerology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, P. R. China
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Zhou W, Chen A, Ye Y, Ren Y, Lu J, Xuan F, Jin R. LIPUS combined with TFSC alleviates premature ovarian failure by promoting autophagy and inhibiting apoptosis. Gynecol Endocrinol 2023; 39:2258422. [PMID: 37855244 DOI: 10.1080/09513590.2023.2258422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/01/2023] [Indexed: 10/20/2023] Open
Abstract
OBJECTIVE Premature ovarian failure (POF), also known as primary ovarian insufficiency, is a major cause of infertility in female worldwide. Excessive apoptosis and impaired autophagy in ovarian granulosa cells are the main pathological mechanisms of POF. The total flavonoids from semen cuscutae (TFSC) are often used in the treatment of gynecological endocrine disorders. In addition, low intensity pulsed ultrasound (LIPUS) is report as an effective method to improve ovarian function. This study aims to investigate the protective effect of POF by the combined use of TFSC and LIPUS. METHODS POF rats model and granulosa cell model were successfully induced by tripterygium glycosides and cyclophosphamide, respectively. After that, model rats and cells received TFSC plus LIPUS administration. Then ovarian histomorphology, senescence, estrus cycle, and serum sex hormone levels were detected in rats. Ovarian tissue and granulosa cells autophagy and apoptosis levels were also assessed. RESULTS Disturbed sex hormone levels, atrophied and senescent ovaries, and abnormal estrous cycle were found in POF rats. Meanwhile, cell autophagy was inhibited and cell apoptosis was activated in POF ovarian tissue and granulosa cells. However, TFSC combined with LIPUS improved these changes, and this combination treatment exhibited synergistic effects. The abnormal expression of the cell apoptosis-, autophagy-, and PI3K/AKT/mTOR signaling pathway-related proteins were also improved by combination treatment. CONCLUSION The study found that the combination of TFSC and LIPUS can alleviate POF by modulating cell autophagy and apoptosis. The findings may provide a viable scientific basis for POF treatment.
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Affiliation(s)
- Weimei Zhou
- Department of Ultrasound, Jiaojiang Maternal and Child Health Hospital, Taizhou, China
| | - Aixue Chen
- Department of Gynecology, Changxing People's Hospital of Chongming District, Shanghai, China
| | - Yongju Ye
- Department of gynaecology, Lishui Hospital of Traditional Chinese Medicine, Lishui, China
| | - Yuefang Ren
- Department of Gynecology, Huzhou Maternity & Child Health Care Hospital, Huzhou, China
| | - Jiali Lu
- Department of Gynecology, Huzhou Maternity & Child Health Care Hospital, Huzhou, China
| | - Feilan Xuan
- Department of obstetrics and gynecology, Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Ruiying Jin
- Department of Gynecology, Jiaojiang Maternal and Child Health Hospital, Taizhou, China
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Wu C, Zhang W, Luo Y, Cheng C, Wang X, Jiang Y, Li S, Luo L, Yang Y. Zebrafish ppp1r21 mutant as a model for the study of primary biliary cholangitis. J Genet Genomics 2023; 50:1004-1013. [PMID: 37271428 DOI: 10.1016/j.jgg.2023.05.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 05/05/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023]
Abstract
Primary biliary cholangitis (PBC) is an autoimmune cholestatic liver disease that progresses to fibrosis and cirrhosis, resulting from the gradual destruction of intrahepatic bile ducts. Exploring genetic variants associated with PBC is essential to understand the pathogenesis of PBC. Here we identify a zebrafish balloon dog (blg) mutant with intrahepatic bile duct branching defects, exhibiting several key pathological PBC-like features, including immunodominant autoantigen PDC-E2 production, cholangiocyte apoptosis, immune cell infiltration, inflammatory activation, and liver fibrosis. blg encodes the protein phosphatase 1 regulatory subunit 21 (Ppp1r21), which is enriched in the liver and its peripheral tissues and plays a vital role in the early intrahepatic bile duct formation stage. Further studies show an excessive activation of the PI3K/AKT/mTOR pathway in the hepatic tissues in the mutant, while treatment with the pathway inhibitor LY294002 and rapamycin partially rescues intrahepatic bile duct branching defects and alleviates the PBC-like symptoms. These findings implicate the potential role of the Ppp1r21-mediated PI3K/AKT/mTOR pathway in the pathophysiology of PBC.
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Affiliation(s)
- Chaoying Wu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Wenfeng Zhang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yiyu Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Chaoqing Cheng
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Xinjuan Wang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yan Jiang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Shuang Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yun Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China.
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Ding J, Chen Z, Ding W, Xiang Y, Yang J. DNA polymerase ζ suppresses the radiosensitivity of glioma cells by regulating the PI3K/AKT/mTOR pathway. Autoimmunity 2023; 56:2234101. [PMID: 37448296 DOI: 10.1080/08916934.2023.2234101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023]
Abstract
Glioblastoma is the most common glioma with high mortality and poor prognosis. Radiation resistance is one of the large challenges in the treatment of glioma. The study aimed to identify whether DNA polymerase ζ affects glioma cell radiosensitivity. The mRNA and protein levels of REV3L and REV7 were examined using quantitative real-time PCR and western blot. After REV3L and REV7 knockdown in a GBM cell line (A172), we assessed cell viability, colonies, apoptosis, and immune escape. The underlying mechanisms were evaluated using western blot and were confirmed using rescue experiments. The results showed that REV3L and REV7 levels were increased in glioma and related to poor survival. γ-ray treatment inhibited cell viability, survival fraction, and immune escape, and induced apoptosis of glioma cells from a GBM cell line, whereas knockdown of REV3L or REV7 enhanced these effects. Mechanically, silencing of REV3L or REV7 inactivated the PI3K/AKT/mTOR pathway. IGF-1 treatment abrogated the effects on cell viability, colonies, and apoptosis induced by REV3L or REV7 knocking down. Taken together, silencing of REV3L and REV7 inhibited radiation resistance via inactivating the PI3K/AKT/mTOR pathway, suggesting that targeting DNA polymerase ζ may be a new strategy to reduce the radiotherapy resistance of glioma.
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Affiliation(s)
- Jiqiang Ding
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Zhisheng Chen
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Weilong Ding
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Yongsheng Xiang
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Junbao Yang
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
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Yang Y, Sun X, Luo L, Peng R, Yang R, Cheng Z, Lv Y, Li H, Tang Q, Zhu W, Qiao D, Xu S. Discovery of novel potent PI3K/mTOR dual-target inhibitors based on scaffold hopping: Design, synthesis, and antiproliferative activity. Arch Pharm (Weinheim) 2023; 356:e2300403. [PMID: 37840368 DOI: 10.1002/ardp.202300403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/17/2023]
Abstract
The PI3K/AKT/mTOR pathway is one of the most common dysregulated signaling cascade responses in human cancers, playing a crucial role in cell proliferation and angiogenesis. Therefore, the development of anticancer drugs targeting the PI3K and mTOR pathways has become a research hotspot in cancer treatment. In this study, the PI3K selective inhibitor GDC-0941 was selected as a lead compound, and 28 thiophenyl-triazine derivatives with aromatic urea structures were synthesized based on scaffold hopping, serving as a novel class of PI3K/mTOR dual inhibitors. The most promising compound Y-2 was obtained through antiproliferative activity evaluation, kinase inhibition, and toxicity assays. The results showed that Y-2 demonstrated potential inhibitory effects on both PI3K kinase and mTOR kinase, with IC50 values of 171.4 and 10.2 nM, respectively. The inhibitory effect of Y-2 on mTOR kinase was 52 times greater than that of the positive drug GDC-0941. Subsequently, the antitumor activity of Y-2 was verified through pharmacological experiments such as AO staining, cell apoptosis, scratch assays, and cell colony formation. The antitumor mechanism of Y-2 was further investigated through JC-1 experiments, real-time quantitative PCR, and Western blot analysis. Based on the above experiments, Y-2 can be identified as a potent PI3K/mTOR dual inhibitor for cancer treatment.
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Affiliation(s)
- Yang Yang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Xin Sun
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Leixuan Luo
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Rujue Peng
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Ruiqing Yang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Zhenjie Cheng
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Yao Lv
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Hongfeng Li
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Qidong Tang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Wufu Zhu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Dan Qiao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Shan Xu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
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Gao X, Yu S, Liu S, Zhang S, Sha X, Sun D, Jiang X. Circular RNA nuclear receptor interacting protein 1 promoted biliary tract cancer epithelial-mesenchymal transition and stemness by regulating the miR-515-5p/AKT2 axis and PI3K/AKT/mTOR signaling pathway. Environ Toxicol 2023; 38:2632-2644. [PMID: 37466171 DOI: 10.1002/tox.23898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/17/2023] [Accepted: 06/29/2023] [Indexed: 07/20/2023]
Abstract
Biliary tract cancer (BTC) is a devastating malignancy that is notoriously difficult to diagnose and is associated with high mortality. Circular RNA (circRNA) is a class of endogenous non-coding RNA which has been regarded as the key regulator of tumor initiation and progression, including BTC. Circular RNA nuclear receptor interacting protein 1 (circ_NRIP1), as a circular RNA, is abnormally expressed in many human tumors and exhibits diverse functions in cancer progression. However, its biological significance in BTC has not been thoroughly investigated. In this research, we elucidated that circ_NRIP1 was notably overexpressed in both BTC tissues and cells. We further established a correlation between circ_NRIP1 expression and clinicopathological features in BTC patients, highlighting its clinical relevance. Through functional assays, we observed that knockdown of circ_NRIP1 significantly inhibited tumor cell proliferation, invasion, stemness maintenance, and epithelial-mesenchymal transition, indicating its active involvement in promoting BTC progression. Additionally, it attenuated growth of xenograft and metastasis models. Mechanically, we revealed that circ_NRIP1 served as the competing endogenous RNA to sequester miR-515-5p through complementary base pairing mechanism, thereby upregulated AKT2 expression and indirectly activated PI3K/AKT/mTOR signaling pathway. Generally, targeting the circ_NRIP1/miR-515-5p/AKT2 axis and aberrant activation of the PI3K/AKT/mTOR pathway may hold promising therapeutic strategies for BTC. Our research contributes to a better understanding of the underlying biological basis of BTC and paves the way for the development of innovative treatment approaches.
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Affiliation(s)
- Xin Gao
- Department of General Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shaobo Yu
- Department of General Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Sidi Liu
- Department of General Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Siyuan Zhang
- Department of General Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiangjun Sha
- Department of General Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Dongsheng Sun
- Department of General Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xingming Jiang
- Department of General Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
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Guo P, Li H, Wang X, Li X, Li X. PG545 Prevents Osteoarthritis Development by Regulating PI3K/AKT/mTOR Signaling and Activating Chondrocyte Autophagy. Pharmacology 2023; 108:576-588. [PMID: 37820587 DOI: 10.1159/000532078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 02/16/2023] [Indexed: 10/13/2023]
Abstract
INTRODUCTION Osteoarthritis (OA) is a degenerative disease common in the elderly and is characterized by joint pain, swelling, and restricted movement. In recent years, heparanase has been reported to play an important role in the development of osteoarthritic cartilage. PG545 is a heparan sulfate mimetic with heparanase inhibitory activity. In this study, the therapeutic effects and possible mechanisms of PG545 were investigated in a chondrocyte injury model induced by interleukin-1β (IL -1β). METHODS Following treatment with PG545 or the autophagy inhibitor 3-methyladenine (3-MA), chondrocyte viability was detected using Cell Counting Kit-8 and fluorescein diacetate/propidium iodide double staining. The apoptosis rate of chondrocytes was determined by flow cytometry. Expression of light chain 3 and P62 was monitored by immunofluorescence labeling. Western blot, lentivirus infection with red fluorescent protein and green fluorescent protein, and quantitative real-time polymerase chain reaction were used to determine the expression levels of chondrocyte markers, apoptosis-related factors, autophagy proteins, and key proteins of the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) pathway. The expression and activity of stress-specific enzymes such as malondialdehyde, superoxide dismutase, and catalase (CAT) were investigated. Chondrocytes with ATG5 knockdown were used to investigate the relationship between the therapeutic effect of PG545 and autophagy. The therapeutic effect of PG545 was verified in vivo. RESULTS PG545 had a significant protective effect on chondrocytes by reducing oxidative stress, apoptosis, and degradation of chondrocytes and increasing chondrocyte proliferation. PG545 was effective in inducing autophagy in IL-1β-treated cells, while 3-MA attenuated the effect. The PI3K/Akt/mTOR pathway may be involved in the promotion of autophagy and OA treatment by PG545. CONCLUSION PG545 was able to restore impaired autophagy and autophagic flux via the PI3K/Akt/mTOR pathway, thereby delaying the progression of OA, suggesting that PG545 may be a novel therapeutic approach for OA.
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Affiliation(s)
- Peiyu Guo
- Department of Orthopedics, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Hua Li
- Department of Sport Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xuming Wang
- Department of Respiratory Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xingguo Li
- Department of Orthopedics, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xi Li
- Department of Orthopedics, First Affiliated Hospital of Kunming Medical University, Kunming, China
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Yang Z, Shen X, Wang Z, Li R, Hou W, Liu Z, Gao Y, Zhu C, Qin X. The Biological Function of POLA2 in Hepatocellular Carcinoma. Comb Chem High Throughput Screen 2023; 26:CCHTS-EPUB-135064. [PMID: 37861044 DOI: 10.2174/0113862073254083231002052550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/28/2023] [Accepted: 08/31/2023] [Indexed: 10/21/2023]
Abstract
INTRODUCTION The role and prognostic value of POLA2 in liver cancer were comprehensively analyzed through TCGA, GEO, and ICGC databases, and the role of POLA2 in liver cancer cells and the regulatory mechanism involved were further verified through cell experiments. Hepatocellular carcinoma (HCC) is the most prevalent malignancy with high morbidity and mortality. Consequently, it is critical to identify robust and reliable predictive biomarkers and therapeutic targets for HCC patients. POLA2 is involved in the regulation of various tumors, but the specific role of POLA2 in HCC has not been reported. The regulatory role and prognostic value of POLA2 in HCC were determined by bioinformatics techniques and cell experiments. METHOD The specific role and prognostic value of POLA2 in HCC were comprehensively analyzed by combining the expression data of POLA2 in TCGA, GEO, and ICGC databases and clinical data. In clinical samples, the expression of POLA2 in liver cancer was verified by QPCR. Further, the regulatory role of POLA2 in HCC was explored through cell experiments such as CCK-8, clonal formation experiment, EDU cell proliferation experiment, and flow cytometry. In terms of mechanism exploration, western blot was used to verify the specific regulatory mechanism that POLA2 participated in. Finally, the relationship between POLA2 and immune invasion of HCC was analyzed by using the TIMER database. RESULT A POLA2 expression and prognosis analysis of HCC patients was conducted using the TCGA, GEO, and ICGC databases. We hypothesized that POLA2 might be one of the key factors contributing to the HCC progression. According to a combined analysis of TCGA, ICGC, and GEO databases, POLA2 was highly expressed in HCC. This was further confirmed in clinical samples using the qPCR. POLA2 knockdown was also performed in vitro on HCC cell lines to study the changes in their biological behavior. We confirmed that POLA2 was associated with HCC proliferation by CCK-8, Colony Formation, and EDU assay. We verified the POLA2's involvement in cell cycle regulation using flow techniques. The relationship between POLA2 and PI3K/AKT/mTOR pathway was explored using Western Blotting experiments regarding its mechanism. Further analysis revealed that the POLA2 expression was significantly associated with HCC immune infiltration. CONCLUSION Our study demonstrated POLA2's importance in HCC development and progression and its potential role as a biomarker for disease progression on multiple levels. POLA2 has an important role in regulating the cell cycle and cell proliferation. By interfering with the cell cycle and proliferation, HCC cell growth is inhibited. Furthermore, POLA2 expression was significantly associated with immune infiltration. POLA2 may play a role in HCC immunotherapy based on its correlation with several immune cell types' genetic markers. The findings of this study are expected to lead to new anticancer strategies for HCC.
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Affiliation(s)
- Zhen Yang
- Dalian Medical University Graduate school Dalian China
| | - Xingyuan Shen
- Dalian Medical University Graduate school Dalian China
| | - Zhihuai Wang
- Changzhou No.2 People's Hospital Department of General Surgery Changzhou China
| | - Renzhi Li
- Changzhou No.2 People's Hospital Department of General Surgery Changzhou China
| | - Wenqiang Hou
- Dalian Medical University Graduate school Dalian China
| | - Zengyuan Liu
- Dalian Medical University Graduate school Dalian China
| | - Yuan Gao
- Changzhou No.2 People's Hospital Department of General Surgery Changzhou China
| | - Chunfu Zhu
- Changzhou No.2 People's Hospital Department of General Surgery Changzhou China
| | - Xihu Qin
- Changzhou No.2 People's Hospital Department of General Surgery Changzhou China
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Zheng L, Yang S, Xu R, Yang Y, Quan J, Lin Z, Quan C. NQO1 drives glioblastoma cell aggressiveness through EMT induction via the PI3K/Akt/mTOR/Snail pathway. Int J Oncol 2023; 63:110. [PMID: 37594082 PMCID: PMC10552716 DOI: 10.3892/ijo.2023.5558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 06/20/2023] [Indexed: 08/19/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most frequent and lethal cancer derived from the central nervous system, of which the mesenchymal (MES) subtype seriously influences the survival and prognosis of patients. NAD(P)H: quinone acceptor oxidoreductase 1 (NQO1) serves an important role in the carcinogenesis and progression of various types of cancer; however, the specific mechanism underlying the regulatory effects of NQO1 on GBM is unclear. Thus, the present study aimed to explore the role and mechanism of NQO1 in GBM progression. The results of bioinformatics analysis and immunohistochemistry showed that high expression of NQO1 was significantly related to the MES phenotype of GBM and shorter survival. In addition, MTT, colony formation, immunofluorescence and western blot analyses, and lung metastasis model experiments suggested that silencing NQO1 inhibited the proliferation and metastasis of GBM cells in vitro and in vivo. Furthermore, western blotting showed that the activity of the PI3K/Akt/mTOR signaling pathway was revealed to be inhibited by downregulation of NQO1 expression, whereas it was enhanced by overexpression of NQO1. Notably, co‑immunoprecipitation and ubiquitination experiments suggested that Snail was considered an important downstream target of NQO1 in GBM cells. Snail knockdown could eliminate the promoting effect of ectopic NQO1 on the proliferation and invasion of GBM cells, and reduce its effects on the activity of PI3K/Akt/mTOR signaling pathway. These results indicated that NQO1 could promote GBM aggressiveness by activating the PI3K/Akt/mTOR signaling pathway in a Snail‑dependent manner, and NQO1 and its relevant pathways may be considered novel targets for GBM therapy.
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Affiliation(s)
- Lan Zheng
- Central Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002
- Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province Affiliated with Wenzhou Medical University, Linhai, Zhejiang 317000
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
| | - Shipeng Yang
- Central Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Ran Xu
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Yang Yang
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Jishu Quan
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Zhenhua Lin
- Central Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
- Department of Pathology, Yanbian University Medical College, Yanji, Jilin 133000, P.R. China
| | - Chunhua Quan
- Central Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002
- Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanbian University, Yanji, Jilin 133000
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Wang YY, Zhou YQ, Xie JX, Zhang X, Wang SC, Li Q, Hu LP, Jiang SH, Yi SQ, Xu J, Cao H, Zhao EH, Li J. MAOA suppresses the growth of gastric cancer by interacting with NDRG1 and regulating the Warburg effect through the PI3K/AKT/mTOR pathway. Cell Oncol (Dordr) 2023; 46:1429-1444. [PMID: 37249744 DOI: 10.1007/s13402-023-00821-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2023] [Indexed: 05/31/2023] Open
Abstract
OBJECTIVE Previous studies have indicated that neurotransmitters play important roles in the occurrence and development of gastric cancer. MAOA is an important catecholamine neurotransmitter-degrading enzyme involved in the degradation of norepinephrine, epinephrine and serotonin. To find a potential therapeutic target for the treatment of gastric cancer, the biological functions of MAOA and the underlying mechanism in gastric cancer need to be explored. METHODS The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO) datasets, Kaplan‒Meier (KM) plotter were used to identify the differentially expressed genes, which mainly involved the degradation and synthesis enzymes of neurotransmitters in gastric cancer. We also investigated the expression pattern of MAOA in human and mouse tissues and cell lines by immunohistochemistry and Western blotting analysis. Western blotting, quantitative real-time PCR, enzyme-linked immunosorbent assay (ELISA) and a Seahorse experiment were used to identify the molecular mechanism of cancer cell glycolysis. MAOA expression and patient survival were analysed in the Ren Ji cohort, and univariate and multivariate analyses were performed based on the clinicopathological characteristics of the above samples. RESULTS MAOA expression was significantly downregulated in gastric cancer tissue and associated with poor patient prognosis. Moreover, the expression level of MAOA in gastric cancer tissue had a close negative correlation with the SUXmax value of PET-CT in patients. MAOA suppressed tumour growth and glycolysis and promoted cancer cell apoptosis. We also reported that MAOA can interact with NDRG1 and regulate glycolysis through suppression of the PI3K/Akt/mTOR pathway. MAOA expression may serve as an independent prognostic factor in gastric cancer patients. CONCLUSIONS MAOA attenuated glycolysis and inhibited the progression of gastric cancer through the PI3K/Akt/mTOR pathway. Loss of function or downregulation of MAOA can facilitate gastric cancer progression. Overexpression of MAOA and inhibition of the PI3K/Akt/mTOR pathway may provide a potential method for gastric cancer treatment in clinical therapeutic regimens.
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Affiliation(s)
- Yang-Yang Wang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, 200127, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yao-Qi Zhou
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Jia-Xuan Xie
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiang Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Shu-Chang Wang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, 200127, China
| | - Qing Li
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Li-Peng Hu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Shu-Heng Jiang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Shuang-Qin Yi
- Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Hachioji, Japan
| | - Jia Xu
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, 200127, China.
| | - Hui Cao
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, 200127, China.
| | - En-Hao Zhao
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, 200127, China.
| | - Jun Li
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
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Driva TS, Schatz C, Haybaeck J. Endometriosis-Associated Ovarian Carcinomas: How PI3K/AKT/mTOR Pathway Affects Their Pathogenesis. Biomolecules 2023; 13:1253. [PMID: 37627318 PMCID: PMC10452661 DOI: 10.3390/biom13081253] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/05/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
Ovarian clear cell (OCCC) and endometrioid (EnOC) carcinomas are often subsumed under the umbrella term "endometriosis-associated ovarian cancer" (EAOC), since they frequently arise from ectopic endometrium settled in the ovaries. The phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway is known to be aberrantly activated both in endometriosis and EAOC; however, its role in the progression of endometriosis to ovarian cancer remains unclear. In fact, cancer-associated alterations in the mTOR pathway may be found in normal uterine epithelium, likely acting as a first step towards ovarian cancer, through the intermediary stage of endometriosis. This review aims to summarize the current knowledge regarding mTOR signaling dysregulation in the uterine endometrium, endometriosis, and EAOC while focusing on the interconnections between the PI3K/AKT/mTOR pathway and other signaling molecules that give rise to synergistic molecular mechanisms triggering ovarian cancer development in the presence of endometriosis.
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Affiliation(s)
- Tatiana S. Driva
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Christoph Schatz
- Institute of Pathology, Neuropathology and Molecular Pathology, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Johannes Haybaeck
- Institute of Pathology, Neuropathology and Molecular Pathology, Medical University of Innsbruck, 6020 Innsbruck, Austria
- Diagnostic & Research Center for Molecular Biomedicine, Institute of Pathology, Medical University of Graz, 8010 Graz, Austria
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Tu G, Peng W, Peng X, Zhao Z, Shi S, Cai Q, He B, Yin W, Peng S, Wang L, Yu F, Wang X. hsa_circ_0000519 promotes the progression of lung adenocarcinoma through the hsa-miR-1296-5p/DARS axis. Am J Cancer Res 2023; 13:3342-3367. [PMID: 37693148 PMCID: PMC10492121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/18/2023] [Indexed: 09/12/2023] Open
Abstract
Emerging research indicates that circRNAs serve a crucial role in occurrence and development of cancers. This study aimed to uncover the biological role of hsa_circ_0000519 in the progression of LUAD (lung adenocarcinoma). hsa_circ_0000519 was identified by bioinformatic analysis, and its differential expression was validated in LUAD tissues and cell lines. CCK8, colony formation, wound healing, transwell assays, and xenograft tumor models were used to observe the biological functions of hsa_circ_0000519. FISH, RIP, dual luciferase reporter assays, and recovery experiments were implemented to explore the underlying mechanisms of hsa_circ_0000519. hsa_circ_0000519 was significantly upregulated in LUAD tissues and cell lines. The expression of hsa_circ_0000519 was positively correlated with T grade and TNM stage in patients with LUAD. Downregulation of hsa_circ_0000519 remarkably reduced cell proliferation, migration, invasion in vitro, and tumor growth in vivo. Mechanistic investigation demonstrated that hsa_circ_0000519 directly sponged hsa-miR-1296-5p to reduce its repressive impact on DARS as well as activate the PI3K/AKT/mTOR signaling pathway. The malignant phenotypes of LUAD cells induced by upregulation of hsa_circ_0000519 could be rescued by hsa-miR-1296-5p overexpression or knockdown of DARS. In conclusion, hsa_circ_0000519 promotes LUAD progression through the hsa-miR-1296-5p/DARS axis and may be expected as a novel biomarker and therapeutic for LUAD.
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Affiliation(s)
- Guangxu Tu
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Weilin Peng
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Xiong Peng
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Zhenyu Zhao
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Shuai Shi
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Qidong Cai
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Boxue He
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Wei Yin
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Shaoliang Peng
- College of Computer Science and Electronic Engineering, Hunan UniversityChangsha 410082, Hunan, China
- School of Computer Science, National University of Defense TechnologyChangsha 410073, Hunan, China
| | - Li Wang
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Fenglei Yu
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Xiang Wang
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Hunan Key Laboratory of Early Diagnosis and Precision Therapy, The Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
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Zhu Y, Pu Q, Zhang Q, Liu Y, Ma Y, Yuan Y, Liu L, Zhu W. Selenium-binding protein 1 inhibits malignant progression and induces apoptosis via distinct mechanisms in non-small cell lung cancer. Cancer Med 2023; 12:17149-17170. [PMID: 37606338 PMCID: PMC10501285 DOI: 10.1002/cam4.6309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 05/30/2023] [Accepted: 06/23/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND Selenium is an essential trace element in the human body. In epidemiological and clinical studies, Se supplementation significantly reduced the incidence of lung cancer in individuals with low baseline Se levels. The significant action of selenium is based on the selenium-containing protein as a mediator. Of note, the previous studies reported that the expression of selenium-binding protein 1 (SELENBP1) was obviously decreased in many human cancer tissues including non-small cell lung cancer (NSCLC). However, its roles in the origin and development of NSCLC are still unclear. METHODS The expression of SELENBP1 was measured by qRT-PCR, Western blotting and IHC in our collected clinical NSCLC tissues and cell lines. Next, the CCK-8, colony formation, wound-haeling, Millicell, Transwell, FCM assay, and in vivo xenograft model were performed to explore the function of SELENBP1 in NSCLC. The molecular mechanisms of SELENBP1 were investigated by Western blotting or IF assay. RESULTS We further identified that the expression of SELENBP1 was significantly decreased in NSCLC tissues in TCGA database and 45 out of 59 collected clinical NSCLC tissues compared with adjacent nontumor tissues, as well as in four NSCLC cell lines compared with normal lung cells. Particularly, we unexpectedly discovered that SELENBP1 was obviously expressed in alveolar type 2 (AT-II) cells for the first time. Then, a series of in vitro experiments uncovered that overexpression of SELENBP1 inhibited the proliferation, migration, and invasion of NSCLC cells, and induced cell apoptosis. Moreover, overexpression of SELENBP1 also inhibited growth and induced apoptosis of NSCLC cells in vivo. Mechanistically, we demonstrated that overexpression of SELENBP1 inhibited the malignant characteristics of NSCLC cells in part via inactivating the PI3K/AKT/mTOR signal pathway. Meanwhile, we found that overexpression of SELENBP1 inducing the apoptosis of NSCLC cells was associated with the activation of caspase-3 signaling pathway under nonhigh level of oxidative stress, but overexpression of SELENBP1 facilitating the cell apoptosis might be related to its combining with GPX1 and colocalizing in the nucleus under high level of oxidative stress. CONCLUSIONS Our findings highlighted that SELENBP1 was an important tumor suppressor during the origin and development of NSCLC. It may help to discover novel biomarkers or drug therapy targets for NSCLC.
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Affiliation(s)
- Ying Zhu
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital, Sichuan UniversityChengduSichuanChina
| | - Qiang Pu
- Department of Thoracic SurgeryInstitute of Thoracic Oncology, West China Hospital, Sichuan UniversityChengduSichuanChina
| | - Qiongyin Zhang
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital, Sichuan UniversityChengduSichuanChina
| | - Yang Liu
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital, Sichuan UniversityChengduSichuanChina
| | - Yongfang Ma
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital, Sichuan UniversityChengduSichuanChina
| | - Yue Yuan
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital, Sichuan UniversityChengduSichuanChina
| | - Lunxu Liu
- Department of Thoracic SurgeryInstitute of Thoracic Oncology, West China Hospital, Sichuan UniversityChengduSichuanChina
| | - Wen Zhu
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital, Sichuan UniversityChengduSichuanChina
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Gu X, Li Q, Qian T, Hu Q, Gu J, Ding W, Li M, Wang M, Lu H, Tao K. FGF21 promotes angiotensin II-induced abdominal aortic aneurysm via PI3K/AKT/mTOR pathway. Vascular 2023:17085381231192688. [PMID: 37522318 DOI: 10.1177/17085381231192688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a potentially fatal vascular disorder with a high mortality rate. It was previously reported that fibroblast growth factor 21 (FGF21) was highly expressed in AAA patients. Nonetheless, its underlying mechanism in AAA progression is unclarified. METHODS Angiotensin II (Ang-II) was used to induce AAA in human aortic vascular smooth muscle cells (HASMCs) and mouse models. Western blotting and RT-qPCR were utilized for measuring protein and RNA levels. Immunofluorescence staining was utilized for detecting LC3B expression in HASMCs. Elastica van Gieson staining was conducted for histological analysis of the abdominal aortas of mice. RESULTS FGF21 displayed a high level in Ang-II-stimulated HASMCs and AAA mice. FGF21 depletion ameliorated abdominal aorta dilation and Ang-II-triggered pathological changes in mice. FGF21 silencing hindered autophagy and PI3K/AKT/mTOR pathway. CONCLUSIONS FGF21 contributes to AAA progression by enhancing autophagy and activating PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Xuefeng Gu
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Qi Li
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Tianwei Qian
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Qi Hu
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Jianfeng Gu
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Wei Ding
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Ming Li
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Ming Wang
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Huan Lu
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
| | - Ke Tao
- Department of General Surgery, Changshu Hospital Affiliated to Soochow University, Changshu, China
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Yu L, Gai Y. Elucidating the Mechanism of Agrimonolide in Treating Colon Cancer Based on Network Pharmacology. Drug Des Devel Ther 2023; 17:2209-2222. [PMID: 37533972 PMCID: PMC10390720 DOI: 10.2147/dddt.s409530] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/16/2023] [Indexed: 08/04/2023] Open
Abstract
Purpose This study reported the efficacy and underlying mechanism of agrimonolide (AM) in treating colon cancer. Methods Colon cancer-AM-related targets were screened from online database. AM targets for colon cancer were identified by Venn diagram. Main molecular function, biological process, cellular component and pathways associated with AM targets for colon cancer were analyzed by GO and KEGG enrichment analysis. Relationship of the 10 core targets of AM for colon cancer with the top 15 BP and KEGG pathways was analyzed by Cytoscape software. A "component-target-pathway" network was constructed to select the hub genes of AM for colon cancer. AM effects on colon cancer cell viability, proliferation, invasion, migration and apoptosis were researched by CCK-8, colony formation, Transwell invasion, wound healing and flow cytometry assays. Tumor-bearing nude mice models were constructed and given AM treatment. Hub gene expression in cells/tissues was detected by Western blot. Results A total of 107 targets were selected as AM targets for colon cancer. The 10 core targets were related to the top 15 biological process terms and KEGG pathways. PI3K, AKT and mTOR were selected as the hub genes of AM for colon cancer. AM weakened colon cell proliferation, invasion, migration and apoptosis inhibition, and suppressed colon cell in vivo growth. AM up-regulated Caspase-3 and BAX proteins, down-regulated C-Myc, Cyclin D1 and BCL-2 proteins, and inactivated the PI3K/AKT/mTOR pathway both in vitro and in vivo. Conclusion AM suppressed colon cancer progression through inactivating the PI3K/AKT/mTOR pathway. It may be useful for colon cancer treatment.
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Affiliation(s)
- Lei Yu
- Department of Oncology I, Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai City, People’s Republic of China
| | - Yun Gai
- Department of Oncology I, Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai City, People’s Republic of China
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Derwich A, Sykutera M, Bromińska B, Rubiś B, Ruchała M, Sawicka-Gutaj N. The Role of Activation of PI3K/AKT/mTOR and RAF/MEK/ERK Pathways in Aggressive Pituitary Adenomas-New Potential Therapeutic Approach-A Systematic Review. Int J Mol Sci 2023; 24:10952. [PMID: 37446128 PMCID: PMC10341524 DOI: 10.3390/ijms241310952] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/18/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Pituitary tumors (PT) are mostly benign, although occasionally they demonstrate aggressive behavior, invasion of surrounding tissues, rapid growth, resistance to conventional treatments, and multiple recurrences. The pathogenesis of PT is still not fully understood, and the factors responsible for its invasiveness, aggressiveness, and potential for metastasis are unknown. RAF/MEK/ERK and mTOR signaling are significant pathways in the regulation of cell growth, proliferation, and survival, its importance in tumorigenesis has been highlighted. The aim of our review is to determine the role of the activation of PI3K/AKT/mTOR and RAF/MEK/ERK pathways in the pathogenesis of pituitary tumors. Additionally, we evaluate their potential in a new therapeutic approach to provide alternative therapies and improved outcomes for patients with aggressive pituitary tumors that do not respond to standard treatment. We perform a systematic literature search using the PubMed, Embase, and Scopus databases (search date was 2012-2023). Out of the 529 screened studies, 13 met the inclusion criteria, 7 related to the PI3K/AKT/mTOR pathway, and 7 to the RAF/MEK/ERK pathway (one study was used in both analyses). Understanding the specific factors involved in PT tumorigenesis provides opportunities for targeted therapies. We also review the possible new targeted therapies and the use of mTOR inhibitors and TKI in PT management. Although the RAF/MEK/ERK and PI3K/AKT/mTOR pathways play a pivotal role in the complex signaling network along with many interactions, further research is urgently needed to clarify the exact functions and the underlying mechanisms of these signaling pathways in the pathogenesis of pituitary adenomas and their role in its invasiveness and aggressive clinical outcome.
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Affiliation(s)
- Aleksandra Derwich
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (A.D.)
- Doctoral School, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Monika Sykutera
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (A.D.)
| | - Barbara Bromińska
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (A.D.)
| | - Błażej Rubiś
- Department of Clinical Chemistry and Molecular Diagnostics, Poznan University of Medical Sciences, 60-355 Poznan, Poland
| | - Marek Ruchała
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (A.D.)
| | - Nadia Sawicka-Gutaj
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (A.D.)
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SHAN FAYU, LIANG LANLAN, FENG CHONG, XU HONGBAO, WANG ZIROU, LIU WEILI, PU LINGLING, CHEN ZHAOLI, CHEN GANG, WANG XINXING. LAMC2 regulates proliferation, migration, and invasion mediated by the Pl3K/AKT/mTOR pathway in oral. Oncol Res 2023; 31:481-493. [PMID: 37415741 PMCID: PMC10319602 DOI: 10.32604/or.2023.029064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/17/2023] [Indexed: 07/08/2023] Open
Abstract
Background Oral squamous cell carcinoma (OSCC) is a common malignant tumor. Recently, Laminin Gamma 2 (LAMC2) has been shown to be abnormally expressed in OSCC; however, how LAMC2 signaling contributes to the occurrence and development of OSCC and the role of autophagy in OSCC has not been fully explored. This study aimed to analyze the role and mechanism of LAMC2 signaling in OSCC and the involvement of autophagy in OSCC. Methods To explore the mechanism by which LAMC2 is highly expressed in OSCC, we used small interfering RNA (siRNA) to knock down LAMC2 to further observe the changes in the signaling pathway. Furthermore, we used cell proliferation assays, Transwell invasion assays, and wound-healing assays to observe the changes in OSCC proliferation, invasion, and metastasis. RFP-LC3 was used to detect the level of autophagy intensity. A cell line-derived xenograft (CDX) model was used to detect the effect of LAMC2 on tumor growth in vivo. Results This study found that the level of autophagy was correlated with the biological behavior of OSCC. The downregulation of LAMC2 activated autophagy and inhibited OSCC proliferation, invasion, and metastasis via inhibiting the PI3K/AKT/mTOR pathway. Moreover, autophagy has a dual effect on OSCC, and the synergistic downregulation of LAMC2 and autophagy can inhibit OSCC metastasis, invasion, and proliferation via the PI3K/AKT/mTOR pathway. Conclusions LAMC2 interacts with autophagy to regulate OSCC metastasis, invasion, and proliferation via the PI3K/AKT/mTOR pathway. LAMC2 down-regulation can synergistically modulate autophagy to inhibit OSCC migration, invasion, and proliferation.
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Affiliation(s)
- FAYU SHAN
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
| | - LANLAN LIANG
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
| | - CHONG FENG
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
| | - HONGBAO XU
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
| | - ZIROU WANG
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
| | - WEILI LIU
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
| | - LINGLING PU
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
| | - ZHAOLI CHEN
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
| | - GANG CHEN
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin, 300050, China
| | - XINXING WANG
- Department of Environmental Medicine, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300070, China
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Rai R, Dey DK, Benbrook DM, Chandra V. Niclosamide causes lysosome-dependent cell death in endometrial cancer cells and tumors. Biomed Pharmacother 2023; 161:114422. [PMID: 36841028 DOI: 10.1016/j.biopha.2023.114422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/08/2023] [Accepted: 02/17/2023] [Indexed: 02/25/2023] Open
Abstract
Endometrial cancer is the most common female cancer showing continuous rise in its incidence and mortality rate. Despite the extensive research efforts in cancer therapeutics, still there is a lack of effective treatment options and the outcome is poor for patients with advanced and recurrent endometrial cancers. In this study, we aimed to evaluate the efficacy of niclosamide (NIC) against endometrial cancer. NIC is an FDA-approved anti-helminthic drug, which has been recently extensively studied as a potent anti-cancerous agent in several cancers. The anti-cancerous activity of NIC was analyzed in-vitro (ANC3A, Hec1B, and Ishikawa endometrial cancer cell lines) by cell viability-, soft agar-, invasion- and migration- assay. The action mechanism of NIC was demonstrated by western blot analysis and immune-fluorescence imaging and validated by specific inhibitors. The in-vivo efficacy of NIC was studied in the Ishikawa xenograft animal model. NIC effectively suppressed the viability (IC50<1 μM), colony formation ability, migration, and invasion of all endometrial cancer cells tested. We demonstrated that NIC inhibited AKT/mTOR signaling pathway and induced apoptosis and autophagy in endometrial cancer cells. Further study demonstrated that although NIC induced autophagosome formation, it inhibits autolysosome formation. In addition, we observed that NIC induced BAX co-localization with lysosome and inhibited Cathepsin B maturation from pro-cathepsin B, thereby inducing the lysosomal membrane permeability and release of hydrolytic enzymes from the lysosome to cytosol, which eventually contributed cell death. NIC also inhibited tumor weight and volume in the Ishikawa xenograft animal model without having any evidence of toxicity. Due to its potent anti-cancerous activity and safety profile, NIC seems to be a promising agent for human endometrial cancer therapeutics.
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Affiliation(s)
- Rajani Rai
- Gynecologic Oncology Section, Obstetrics and Gynecology Department, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Debasish Kumar Dey
- Gynecologic Oncology Section, Obstetrics and Gynecology Department, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Doris Mangiaracina Benbrook
- Gynecologic Oncology Section, Obstetrics and Gynecology Department, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Vishal Chandra
- Gynecologic Oncology Section, Obstetrics and Gynecology Department, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA..
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Wang J, Chen T, Li X, Zhang Y, Fu S, Huo R, Duan Y. A study on the anti-osteoporosis mechanism of isopsoralen based on network pharmacology and molecular experiments. J Orthop Surg Res 2023; 18:304. [PMID: 37069639 PMCID: PMC10108469 DOI: 10.1186/s13018-023-03689-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 03/07/2023] [Indexed: 04/19/2023] Open
Abstract
OBJECTIVE Osteoporosis (OP) is a disease caused by multiple factors. Studies have pointed out that isopsoralen (IPRN) is one of the most effective drugs for the treatment of OP. Based on network pharmacological and molecular experimental analysis, the molecular mechanism of IPRN in osteoporosis is clarified. METHODS IPRN target genes and OP-related genes were predicted from the databases. Intersections were obtained and visualized. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were performed on target genes, which was confirmed by experiments internal and external experiments. Molecular docking was used to verify the binding between IPRN and target proteins. Molecular dynamics (MD) simulates the binding affinity of protein targets and active compounds. RESULTS 87 IPRN target genes and 242 disease-related targets were predicted. The protein-protein interaction (PPI) network identified 18 IPRN target proteins for the treatment of OP. GO analysis indicated that target genes were involved in biological processes. KEGG analysis showed that pathways such as PI3K/AKT/mTOR were associated with OP. Cell experiments (qPCR and WB) found that the expressions of PI3K, AKT, and mTOR in MC3T3-E1 cells at 10 μM, 20 μM, and 50 μM IPRN concentrations, especially at 20 μM IPRN treatment, were higher than those in the control group at 48 h. Animal experiments also showed that compared with the control group, 40 mg/kg/time IPRN could promote the expression of the PI3K gene in chondrocytes of SD rats. CONCLUSIONS This study predicted the target genes of IPRN in the treatment of OP and preliminarily verified that IPRN plays an anti-OP role through the PI3K/AKT/mTOR pathway, which provides a new drug for the treatment of OP.
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Affiliation(s)
- Jian Wang
- Department of Orthopedics, Inner Mongolia People's Hospital, No. 20, Zhaowuda Road, Saihan District, Hohhot, Inner Mongolia Autonomous Region, 010017, China
| | - Tianyu Chen
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Tianhe District, Guangzhou, 510630, Guangdong Province, China
| | - Xiang Li
- Department of Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, Inner Mongolia Autonomous Region, 010110, China
| | - Yu Zhang
- Department of Surgery, Inner Mongolia People's Hospital, No. 20, Zhaowuda Road, Saihan District, Hohhot, Inner Mongolia Autonomous Region, 010017, China
| | - Shuang Fu
- Department of Orthopedics, Inner Mongolia People's Hospital, No. 20, Zhaowuda Road, Saihan District, Hohhot, Inner Mongolia Autonomous Region, 010017, China
| | - Ruikun Huo
- Department of Orthopedics, Inner Mongolia People's Hospital, No. 20, Zhaowuda Road, Saihan District, Hohhot, Inner Mongolia Autonomous Region, 010017, China
| | - Yan Duan
- Department of Surgery, Inner Mongolia People's Hospital, No. 20, Zhaowuda Road, Saihan District, Hohhot, Inner Mongolia Autonomous Region, 010017, China.
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Yang C, Yaolin S, Lu W, Wenwen R, Hailei S, Han Z, Xiaoming X. G-protein signaling modulator 1 promotes colorectal cancer metastasis by PI3K/AKT/mTOR signaling and autophagy. Int J Biochem Cell Biol 2023; 157:106388. [PMID: 36758790 DOI: 10.1016/j.biocel.2023.106388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 11/26/2022] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND Colorectal cancer is the second most common malignant tumor worldwide. A deeper insight into the mechanisms underlying colorectal cancer metastasis is urgently needed. G-protein signaling modulator 1 and autophagy play critical roles in tumor migration and invasion. However, the biological functions and regulatory networks of G-protein signaling modulator 1 and autophagy have not yet been fully studied. METHODS We performed immunohistochemistry and clinic-pathological characteristic analysis in 328 human colorectal cancer specimens to identify the clinical role of G-protein signaling modulator 1 in colorectal cancer. An in vitro coculture system and a tumor metastasis mouse model were used to explore the biological function of G-protein signaling modulator 1 on tumor metastasis. Autophagic flux detection like GFP-LC3B signal immunofluorescence and electron microscope observation of autophagic vesicles and confocal microscope detection were used to gain insights into the underlying role of G-protein signaling modulator 1 in autophagy. RESULTS We found that G-protein signaling modulator 1 was abundantly expressed in colorectal cancer tissues and was associated with lymph node metastasis and poor prognosis. Furthermore, our bioinformatic and functional studies demonstrated that G-protein signaling modulator 1 significantly promoted cell migration and invasion, both in vitro and in vivo. Mechanistically, we demonstrated that G-protein signaling modulator 1 could promote colorectal cancer cell migration and invasion and inhibit autophagy and by activating the PI3K/AKT/mTOR pathway. CONCLUSIONS We proposed that G-protein signaling modulator 1 promotes colorectal cancer metastasis by modulating autophagy through the PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Chen Yang
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, People's Republic of China
| | - Song Yaolin
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, People's Republic of China
| | - Wang Lu
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, People's Republic of China
| | - Ran Wenwen
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, People's Republic of China
| | - Shi Hailei
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, People's Republic of China
| | - Zhao Han
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, People's Republic of China
| | - Xing Xiaoming
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, People's Republic of China.
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Luo C, Zhou W, Zhang H, Zhu J, Chen L, Gu Y. [Research of epigallocatechin gallate in delaying chondrocyte senescence]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2023; 37:308-315. [PMID: 36940989 PMCID: PMC10027523 DOI: 10.7507/1002-1892.202210101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective To investigate the effect of epigallocatechin gallate (EGCG) on chondrocyte senescence and its mechanism. Methods The chondrocytes were isolated from the articular cartilage of 4-week-old Sprague Dawley rats, and cultured with type Ⅱcollagenase and passaged. The cells were identified by toluidine blue staining, alcian blue staining, and immunocytochemical staining for type Ⅱ collagen. The second passage (P2) cells were divided into blank control group, 10 ng/mL IL-1β group, and 6.25, 12.5, 25.0, 50.0, 100.0, and 200.0 μmol/L EGCG+10 ng/mL IL-1β group. The chondrocyte activity was measured with cell counting kit 8 after 24 hours of corresponding culture, and the optimal drug concentration of EGCG was selected for the subsequent experiment. The P2 chondrocytes were further divided into blank control group (group A), 10 ng/mL IL-1β group (group B), EGCG+10 ng/mL IL-1β group (group C), and EGCG+10 ng/mL IL-1β+5 mmol/L 3-methyladenine (3-MA) group (group D). After cultured, the degree of cell senescence was detected by β-galactosidase staining, the autophagy by monodansylcadaverine method, and the expression levels of chondrocyte-related genes [type Ⅱ collagen, matrix metalloproteinase 3 (MMP-3), MMP-13] by real-time fluorescent quantitative PCR, the expression levels of chondrocyte-related proteins (Beclin-1, LC3, MMP-3, MMP-13, type Ⅱ collagen, P16, mTOR, AKT) by Western blot. Results The cultured cells were identified as chondrocytes. Compared with the blank control group, the cell activity of 10 ng/mL IL-1β group significantly decreased ( P<0.05). Compared with the 10 ng/mL IL-1β group, the cell activity of EGCG+10 ng/mL IL-1β groups increased, and the 50.0, 100.0, and 200.0 μmol/L EGCG significantly promoted the activity of chondrocytes ( P<0.05). The 100.0 μmol/L EGCG was selected for subsequent experiments. Compared with group A, the cells in group B showed senescence changes. Compared with group B, the senescence rate of chondrocytes in group C decreased, autophagy increased, the relative expression of type Ⅱ collagen mRNA increased, and relative expressions of MMP-3 and MMP-13 mRNAs decreased; the relative expressions of Beclin-1, LC3, and type Ⅱ collagen proteins increased, but the relative expressions of P16, MMP-3, MMP-13, mTOR, and AKT proteins decreased; the above differences were significant ( P<0.05). Compared with group C, when 3-MA was added in group D, the senescence rate of chondrocytes increased, autophagy decreased, and the relative expressions of the target proteins and mRNAs showed an opposite trend ( P<0.05). Conclusion EGCG regulates the autophagy of chondrocytes through the PI3K/AKT/mTOR signaling pathway and exerts anti-senescence effects.
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Affiliation(s)
- Chao Luo
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, 330006, P. R. China
- Department of Orthopedics, Nanchang County People's Hospital, Nanchang Jiangxi, 330200, P. R. China
| | - Weijun Zhou
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, 330006, P. R. China
| | - Huying Zhang
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, 330006, P. R. China
| | - Jinwei Zhu
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, 330006, P. R. China
| | - Lu Chen
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, 330006, P. R. China
| | - Yurong Gu
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, 330006, P. R. China
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Chen J, Liu F, Wu J, Yang Y, He J, Wu F, Yang K, Li J, Jiang Z, Jiang Z. Effect of STK3 on proliferation and apoptosis of pancreatic cancer cells via PI3K/AKT/mTOR pathway. Cell Signal 2023; 106:110642. [PMID: 36871796 DOI: 10.1016/j.cellsig.2023.110642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 02/12/2023] [Accepted: 02/28/2023] [Indexed: 03/07/2023]
Abstract
Pancreatic cancer, as a malignant tumor with a very poor prognosis, has a high mortality. It is imperative to clarify the mechanism of pancreatic cancer development and find suitable targets for diagnosis and treatment. Serine/threonine kinase 3 (STK3) is one of the core kinases of the Hippo pathway and has the ability to inhibit tumor growth. But the biological function of STK3 in pancreatic cancer remains unknown. Here, we confirmed that STK3 has an impact on the growth, apoptosis, and metastasis of pancreatic cancer cells and investigated the related molecular mechanisms. In our research, we found that STK3 is reduced in pancreatic cancer by RT-qPCR, IHC and IF, its expression level is correlated with the clinicopathological features. CCK-8 assay, colony formation assay and flow cytometry were used to detect the effect of STK3 on the proliferation and apoptosis of pancreatic cancer cells. In addition, the Transwell assay was used to detect the ability of cell migration and invasion. The results showed that STK3 promoted apoptosis and inhibited cell migration, invasion and proliferation in pancreatic cancer. Gene set enrichment analysis (GSEA) and western blotting are used to predict and verify the pathways related to STK3. Subsequently, we found that the effect of STK3 on proliferation and apoptosis is closely related to the PI3K/AKT/mTOR pathway. Moreover, the assistance of RASSF1 plays a significant role in the regulation of PI3K/AKT/mTOR pathway by STK3. The nude mouse xenograft experiment demonstrated the tumor suppressive ability of STK3 in vivo. Collectively, this study found that STK3 regulates pancreatic cancer cell proliferation and apoptosis by suppressing the PI3K/AKT/mTOR pathway with the assistance of RASSF1.
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Affiliation(s)
- Jun Chen
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Fuqiang Liu
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jiao Wu
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yichun Yang
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jin He
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Fan Wu
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Kun Yang
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Junfeng Li
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Zhongxiang Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Zheng Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Meng M, Yang Q, Ouyang Z, Yang Q, Wu X, Huang Y, Su Y, Chen S, Chen W. Ampelopsin induces MDA-MB-231 cell cycle arrest through cyclin B1-mediated PI3K/AKT/mTOR pathway in vitro and in vivo. Acta Pharm 2023; 73:75-90. [PMID: 36692465 DOI: 10.2478/acph-2023-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/31/2022] [Indexed: 01/25/2023]
Abstract
Breast cancer is one of the most common malignant tumors in women and it is the most frequently diagnosed cancer in the world. Ampelopsin (AMP) is a purified component from the root of Ampelopsis grossedentata. It is reported that AMP could significantly inhibit the proliferation of breast cancer cells. However, the antitumor mechanism against breast cancer has not yet been fully elucidated. The purpose of this work was to study the role of AMP against breast cancer MDA-MB-231 cells and to further investigate the underlying mechanism. PI3K/AKT/mTOR plays a very important role in tumor cell growth and proliferation and we hypothesize that AMP may inhibit this pathway. In the present work, the results showed that AMP could significantly inhibit the growth of breast cancer MDA-MB-231 cells in vitro and in vivo. In addition, treatment with AMP decreased the levels of PI3K, AKT and mTOR, as well as cyclin B1 expression, followed by p53/p21 pathway activation to arrest the cell cycle at G2/M. Moreover, it demonstrated a positive association between cyclin B1 and PI3K/AKT/mTOR levels. Importantly, this pathway was found to be regulated by cyclin B1 in MDA-MB-231 cells treated with AMP. Also, it was observed that cyclin B1 overexpression attenuated cell apoptosis and weakened the inhibitory effects of AMP on cell proliferation. Together, AMP could inhibit breast cancer MDA-MB-231 cell proliferation in vitro and in vivo, due to cell cycle arrest at G2/M by inactivating PI3K/AKT/mTOR pathway regulated by cyclin B1.
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Alves CL, Ditzel HJ. Drugging the PI3K/AKT/mTOR Pathway in ER+ Breast Cancer. Int J Mol Sci 2023; 24. [PMID: 36901954 DOI: 10.3390/ijms24054522] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/13/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
The frequent activation of the PI3K/AKT/mTOR pathway and its crucial role in estrogen receptor-positive (ER+) breast cancer tumorigenesis and drug resistance has made it a highly attractive therapeutic target in this breast cancer subtype. Consequently, the number of new inhibitors in clinical development targeting this pathway has drastically increased. Among these, the PIK3CA isoform-specific inhibitor alpelisib and the pan-AKT inhibitor capivasertib were recently approved in combination with the estrogen receptor degrader fulvestrant for the treatment of ER+ advanced breast cancer after progression on an aromatase inhibitor. Nevertheless, the clinical development of multiple inhibitors of the PI3K/AKT/mTOR pathway, in parallel with the incorporation of CDK4/6 inhibitors into the standard of care treatment in ER+ advanced breast cancer, has led to a multitude of available therapeutic agents and many possible combined strategies which complicate personalizing treatment. Here, we review the role of the PI3K/AKT/mTOR pathway in ER+ advanced breast cancer, highlighting the genomic contexts in which the various inhibitors of this pathway may have superior activity. We also discuss selected trials with agents targeting the PI3K/AKT/mTOR and related pathways as well as the rationale supporting the clinical development of triple combination therapy targeting ER, CDK4/6 and PI3K/AKT/mTOR in ER+ advanced breast cancer.
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Ning S, Zhang S, Guo Z. MicroRNA-494 regulates high glucose-induced cardiomyocyte apoptosis and autophagy by PI3K/AKT/mTOR signalling pathway. ESC Heart Fail 2023; 10:1401-1411. [PMID: 36772911 PMCID: PMC10053280 DOI: 10.1002/ehf2.14311] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 12/08/2022] [Accepted: 01/16/2023] [Indexed: 02/12/2023] Open
Abstract
AIMS Diabetic cardiomyopathy (DCM) is one of the major cardiovascular complications of diabetes. However, the mechanism of DCM is not fully understood. Studies have confirmed that certain microRNAs (miRNAs/miRs) are key regulators of DCM. The aim of this study was to investigate the role and mechanism of microRNA (miR)-494 in cardiomyocyte apoptosis and autophagy induced by high glucose (HG). METHODS AND RESULTS By establishing a rat DCM model and an HG-treated H9c2 cells injury model, cardiac function was detected by echocardiography, myocardial tissue was stained by immunohistochemistry, and Cell Counting Kit-8 assay and lactate dehydrogenase assay were used to detect the cardiomyocyte injury. Cell apoptosis was detected by terminal deoxynucleotidyl transferase dUTP nick end labelling staining, and western blotting was used to detect death and autophagy. The results showed that the expression level of miR-494 was higher in the myocardial tissue of DCM rats and the myocardial cells of H9c2 treated with HG. Compared with the corresponding negative control groups, miR-494 mimics enhanced HG-induced apoptosis and autophagy, whereas miR-494 inhibitors showed the opposite effect, corresponding PI3K, AKT, and mTOR phosphorylation level has changed. CONCLUSIONS These findings identify that miR-494 could regulate cell apoptosis and autophagy through PI3K/AKT/mTOR signalling pathway, participating in the regulation of cardiomyocyte cell damage after HG. These findings provide new insights for the further study of the molecular mechanism and treatment of DCM.
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Affiliation(s)
- Shuwei Ning
- Henan Key Laboratory of Cardiac Remodeling and Transplantation, Zhengzhou No. 7 People's Hospital, No. 17 Jingnan 5th Road, Zhengzhou, Henan, 450016, China
| | - Siqi Zhang
- Henan Key Laboratory of Cardiac Remodeling and Transplantation, Zhengzhou No. 7 People's Hospital, No. 17 Jingnan 5th Road, Zhengzhou, Henan, 450016, China
| | - Zhikun Guo
- Henan Key Laboratory of Cardiac Remodeling and Transplantation, Zhengzhou No. 7 People's Hospital, No. 17 Jingnan 5th Road, Zhengzhou, Henan, 450016, China.,Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, China
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