1
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Şansaçar M, Sağır H, Gencer Akçok EB. Inhibition of PI3K-AKT-mTOR pathway and modulation of histone deacetylase enzymes reduce the growth of acute myeloid leukemia cells. Med Oncol 2023; 41:31. [PMID: 38148433 DOI: 10.1007/s12032-023-02247-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/10/2023] [Indexed: 12/28/2023]
Abstract
One of the most widespread forms of blood cancer is known as acute myeloid leukemia (AML) which has an incidence of 80% with poor prognosis. Although there are different treatment methods for AML in clinic, the heterogeneity and complexity of the disease show that new treatments are needed. The aim of this study is to investigate the anticancer effects of inhibition of PI3K and HDAC enzymes on CMK and MOLM-13 AML cells lines. We demonstrated that the combination of LY294002 with SAHA and Tubastatin A significantly decreased the cell viability of both cell lines. In contrast, the LY294002 and PCI-34051 combination did not show a significant difference compared to the single LY294002 administration. The combination treatment of LY294002 and HDAC inhibitors did not induce apoptosis significantly. However, LY294002 + SAHA and LY294002 + PCI-34051 resulted in G0/G1 and G2/M cell cycle arrest in CMK cells, respectively. On the other hand, compared to control cells, LY294002 + SAHA and LY294002 + PCI-34051 led to G0/G1 phase arrest in MOLM-13. Furthermore, the LY294002 + PCI-34051 combination elevated the expression rate of LC3BII/I, an autophagy marker, in CMK cells by 2.5-fold. Our study revealed that the combinations of PI3K inhibitor and HDAC inhibitors showed a synergistic effect and caused a reduction in cell viability and increased cell cycle arrest on MOLM-13 and CMK cell lines. In addition, the expression of LC3BII was elevated in the CMK cell line. In conclusion, although more mechanistic studies are required, a combinational inhibition of PI3K and HDAC could be a promising approach for AML.
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Affiliation(s)
- Merve Şansaçar
- Bioengineering Department, Graduate School of Engineering and Science, Abdullah Gul University, Kayseri, Turkey
| | - Helin Sağır
- Bioengineering Department, Graduate School of Engineering and Science, Abdullah Gul University, Kayseri, Turkey
| | - Emel Başak Gencer Akçok
- Molecular Biology and Genetics Department, Faculty of Life and Natural Sciences, Abdullah Gul University, Kayseri, Turkey.
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2
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Cayo A, Venturini W, Rebolledo-Mira D, Moore-Carrasco R, Herrada AA, Nova-Lamperti E, Valenzuela C, Brown NE. Palbociclib-Induced Cellular Senescence Is Modulated by the mTOR Complex 1 and Autophagy. Int J Mol Sci 2023; 24:ijms24119284. [PMID: 37298236 DOI: 10.3390/ijms24119284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/17/2023] [Accepted: 05/21/2023] [Indexed: 06/12/2023] Open
Abstract
Despite not dividing, senescent cells acquire the ability to synthesize and secrete a plethora of bioactive molecules, a feature known as the senescence-associated secretory phenotype (SASP). In addition, senescent cells often upregulate autophagy, a catalytic process that improves cell viability in stress-challenged cells. Notably, this "senescence-related autophagy" can provide free amino acids for the activation of mTORC1 and the synthesis of SASP components. However, little is known about the functional status of mTORC1 in models of senescence induced by CDK4/6 inhibitors (e.g., Palbociclib), or the effects that the inhibition of mTORC1 or the combined inhibition of mTORC1 and autophagy have on senescence and the SASP. Herein, we examined the effects of mTORC1 inhibition, with or without concomitant autophagy inhibition, on Palbociclib-driven senescent AGS and MCF-7 cells. We also assessed the pro-tumorigenic effects of conditioned media from Palbociclib-driven senescent cells with the inhibition of mTORC1, or with the combined inhibition of mTORC1 and autophagy. We found that Palbociclib-driven senescent cells display a partially reduced activity of mTORC1 accompanied by increased levels of autophagy. Interestingly, further mTORC1 inhibition exacerbated the senescent phenotype, a phenomenon that was reversed upon autophagy inhibition. Finally, the SASP varied upon inhibiting mTORC1, or upon the combined inhibition of mTORC1 and autophagy, generating diverse responses in cell proliferation, invasion, and migration of non-senescent tumorigenic cells. Overall, variations in the SASP of Palbociclib-driven senescent cells with the concomitant inhibition of mTORC1 seem to depend on autophagy.
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Affiliation(s)
- Angel Cayo
- Center for Medical Research, School of Medicine, University of Talca, Talca 3460000, Chile
- Institute for Interdisciplinary Research, Academic Vice Rectory, University of Talca, Talca 3460000, Chile
| | - Whitney Venturini
- Center for Medical Research, School of Medicine, University of Talca, Talca 3460000, Chile
- Institute for Interdisciplinary Research, Academic Vice Rectory, University of Talca, Talca 3460000, Chile
| | - Danitza Rebolledo-Mira
- Center for Medical Research, School of Medicine, University of Talca, Talca 3460000, Chile
| | - Rodrigo Moore-Carrasco
- Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile
| | - Andrés A Herrada
- Lymphatic and Inflammation Research Laboratory, Facultad de Ciencias de la Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Talca 3467987, Chile
| | - Estefanía Nova-Lamperti
- Molecular and Translational Immunology Laboratory, Department of Clinical Biochemistry and Immunology, Pharmacy Faculty, Universidad de Concepción, Concepción 4070386, Chile
| | - Claudio Valenzuela
- Center for Medical Research, School of Medicine, University of Talca, Talca 3460000, Chile
| | - Nelson E Brown
- Center for Medical Research, School of Medicine, University of Talca, Talca 3460000, Chile
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3
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Chen J, Liu H, Chen Y, Hu H, Huang C, Wang Y, Liang L, Liu Y. Iridium(III) complexes inhibit the proliferation and migration of BEL-7402 cells through the PI3K/AKT/mTOR signaling pathway. J Inorg Biochem 2023; 241:112145. [PMID: 36709684 DOI: 10.1016/j.jinorgbio.2023.112145] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/11/2023] [Accepted: 01/20/2023] [Indexed: 01/25/2023]
Abstract
Iridium(III) complexes are largely studied as anti-cancer complexes due to their excellent anti-cancer activity. In this article, two new iridium(III) complexes [Ir(piq)2(THPIP)]PF6 (THPIP = 2,4-di-tert-butyl-6-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenol, piq = deprotonated 1-phenylisoquinoline) (Ir1) and [Ir(bzq)2(THPIP)]PF6 (bzq = deprotonated benzo[h]quinolone) (Ir2) were synthesized. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays showed that complex Ir1 exhibits moderate activity (IC50 = 29.9 ± 4.6 μM) and Ir2 shows high cytotoxicity (IC50 = 9.8 ± 1.8 μM) against BEL-7402 cells. Further studies on the mechanism showed that Ir1 and Ir2 induced apoptosis by changing the mitochondrial membrane potential, Ca2+ release, ROS accumulation, and cell cycle arrest at the S phase. The complexes can effectively inhibit cell colony formation and migration. The expression of B-cell lymphoma-2 (Bcl-2) family proteins, PI3K (phosphatidylinositol 3-kinase), AKT (protein kinase B), mTOR (mammalian target of rapamycin), and p-mTOR was studied by immunoblotting. Complexes Ir1 and Ir2 downregulated the expression of anti-apoptotic protein Bcl-2 and increased the expression of autophagy-related proteins of Beclin-1 and LC3-II. Further experiments showed that the complexes inhibited the production of glutathione (GSH) and increased the amounts of malondialdehyde (MDA). Fluorescence of HMGB1 was significantly increased. We also investigated the effect of the complexes on the expression of genes using RNA-sequence analysis, we further calculated the lowest binding energies between the complexes and proteins using molecular docking. Taken together, the above results indicated that complexes Ir1 and Ir2 induce apoptosis in BEL-7402 cells through a ROS-mediated mitochondrial dysfunction and inhibition of the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Jing Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Haimei Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yichuan Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Huiyan Hu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Chunxia Huang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yi Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Lijuan Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China.
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4
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Xu C, Wu Y, Tang L, Liang Y, Zhao Y. Protective effect of cistanoside A on dopaminergic neurons in Parkinson's disease via mitophagy. Biotechnol Appl Biochem 2023; 70:268-280. [PMID: 35420720 DOI: 10.1002/bab.2350] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 03/23/2022] [Indexed: 11/05/2022]
Abstract
One of the main pathological features of Parkinson's disease (PD) is the loss of dopaminergic neurons in the substantia nigra compacta (SNc). Cistanoside A (CA) has a strong neuroprotective effect in PD, but the exact mechanism is unclear. In the present study, the MPTP-stimulated mouse model of PD and MPP+ -treated PD model in the MES23.5 neuronal cell model of PD were used to investigate the neuroprotective effects of CA on PD and its potential mechanism. The in vivo experiment results indicated that CA improved the motor function in mice and increased the number of tyrosine hydroxylase positive cells in SNc. In vitro experiments showed that CA reduced the MPP+ -induced decrease in neurons and mitochondrial membrane potential and promoted the activation of autophagosomes. Furthermore, we found that CA promoted the recruitment of PINK1 and Parkin aggregation to impair mitochondrial membranes and inhibited mitochondrial damage via LC3- and p62-mediated autophagy. In conclusion, CA protects against MPTP-induced neurotoxicity in vivo and MPP+ -induced neurotoxicity in vitro, possibly by promoting the PINK1/Parkin/p62 pathway to accelerate the degradation of damaged mitochondria thereby reducing oxidative stress.
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Affiliation(s)
- Chengcheng Xu
- Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yao Wu
- Department of Neurology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Lili Tang
- Department of Neurology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yan Liang
- Department of Neurology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yang Zhao
- Department of Neurology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
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5
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Venediktova N, Solomadin I, Starinets V, Mironova G. Structural and Dynamic Features of Liver Mitochondria and Mitophagy in Rats with Hyperthyroidism. Int J Mol Sci 2022; 23:ijms232214327. [PMID: 36430802 PMCID: PMC9695125 DOI: 10.3390/ijms232214327] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/09/2022] [Accepted: 11/12/2022] [Indexed: 11/22/2022] Open
Abstract
This work investigated the effect of thyroxine on the biogenesis and quality control system of rat liver mitochondria. Chronic administration of thyroxine to experimental animals induced hyperthyroidism, which was confirmed by a severalfold increase in serum-free triiodothyronine and thyroxine concentrations. The uptake of oxygen was found to increase with a decrease in ADP phosphorylation efficiency and respiratory state ratio. Electron microscopy showed 36% of liver mitochondria to be swollen and approximately 18% to have a lysed matrix with a reduced number of cristae. Frequently encountered multilamellar bodies associated with defective mitochondria were located either at the edge of or inside the organelle. The number, area and perimeter of hyperthyroid rat mitochondria increased. Administration of thyroxine increased mitochondrial biogenesis and the quantity of mitochondrial DNA in liver tissue. Mitochondrial dynamics and mitophagy changed significantly. The data obtained indicate that excess thyroid hormones cause a disturbance of the mitochondrial quality control system and ultimately to the incorporation of potentially toxic material in the mitochondrial pool.
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6
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Shao T, Ke H, Liu R, Xu L, Han S, Zhang X, Dang Y, Jiao X, Li W, Chen ZJ, Qin Y, Zhao S. Autophagy regulates differentiation of ovarian granulosa cells through degradation of WT1. Autophagy 2022; 18:1864-1878. [PMID: 35025698 PMCID: PMC9450966 DOI: 10.1080/15548627.2021.2005415] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Ovarian granulosa cells (GCs) proliferate and differentiate along with follicular growth, and this is indispensable for oocyte development and female fertility. Although the role of macroautophagy/autophagy in ovarian function has been reported, its contribution to the regulation of GC characteristics remains elusive. The siRNA-mediated knockdown of two key autophagy-related genes ATG5 and BECN1 and the autophagy inhibitor chloroquine were used to interfere with autophagy in GCs. Inhibition of autophagy both genetically and pharmacologically resulted in decreased expression of genes associated with GC differentiation, including CYP19A1/Aromatase and FSHR, as well as in reduced estradiol synthesis. Mechanistically, when autophagy was disrupted, the transcription factor WT1 accumulated in GCs due to its insufficient degradation by the autophagic pathway, and this inhibited GC differentiation. Finally, decreased expression of several autophagy-related genes, as well as reduced LC3-II:LC3-I and elevated SQSTM1/p62 protein levels, which are indications of decreased autophagy, were detected in GCs from biochemical premature ovarian insufficiency patients. In summary, our study reveals that autophagy regulates the differentiation of ovarian GCs by degrading WT1 and that insufficient autophagy might be involved in ovarian dysfunction.
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Affiliation(s)
- Tong Shao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Hanni Ke
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Ran Liu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Lan Xu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Shuang Han
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Xiruo Zhang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Yujie Dang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Xue Jiao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Wei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China.,Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yingying Qin
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Shidou Zhao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
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7
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Yakhine-Diop SMS, Rodríguez-Arribas M, Canales-Cortés S, Martínez-Chacón G, Uribe-Carretero E, Blanco-Benítez M, Duque-González G, Paredes-Barquero M, Alegre-Cortés E, Climent V, Aiastui A, López de Munain A, Bravo-San Pedro JM, Niso-Santano M, Fuentes JM, González-Polo RA. The parkinsonian LRRK2 R1441G mutation shows macroautophagy-mitophagy dysregulation concomitant with endoplasmic reticulum stress. Cell Biol Toxicol 2021; 38:889-911. [PMID: 34060004 DOI: 10.1007/s10565-021-09617-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 05/12/2021] [Indexed: 12/15/2022]
Abstract
Autophagy is a mechanism responsible for the degradation of cellular components to maintain their homeostasis. However, autophagy is commonly altered and compromised in several diseases, including neurodegenerative disorders. Parkinson's disease (PD) can be considered a multifactorial disease because environmental factors, genetic factors, and aging are involved. Several genes are involved in PD pathology, among which the LRRK2 gene and its mutations, inherited in an autosomal dominant manner, are responsible for most genetic PD cases. The R1441G LRRK2 mutation is, after G2019S, the most important in PD pathogenesis. Our results demonstrate a relationship between the R1441G LRRK2 mutation and a mechanistic dysregulation of autophagy that compromises cell viability. This altered autophagy mechanism is associated with organellar stress including mitochondrial (which induces mitophagy) and endoplasmic reticulum (ER) stress, consistent with the fact that patients with this mutation are more vulnerable to toxins related to PD, such as MPP+.
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Affiliation(s)
- Sokhna M S Yakhine-Diop
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain.,Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain.,Instituto de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain
| | - Mario Rodríguez-Arribas
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain.,Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain.,Instituto de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain
| | - Saray Canales-Cortés
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain
| | - Guadalupe Martínez-Chacón
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain.,Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain.,Instituto de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain
| | - Elisabet Uribe-Carretero
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain.,Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain.,Instituto de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain
| | - Mercedes Blanco-Benítez
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain
| | - Gema Duque-González
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain
| | - Marta Paredes-Barquero
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain
| | - Eva Alegre-Cortés
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain
| | - Vicente Climent
- Departamento de Anatomía Y Embriología Humana, Facultad de Medicina, Universidad de Extremadura, Badajoz, Spain
| | - Ana Aiastui
- Cell Culture Platform, Donostia University Hospital, San Sebastián, Spain.,Neuroscience Area of Biodonostia Health Research Institute, Donostia University Hospital, San Sebastián, Spain
| | - Adolfo López de Munain
- Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain.,Department of Neurology, Donostia University Hospital, San Sebastian, Spain.,Ilundain Foundation, San Sebastian, Spain.,Department of Neurosciences, University of the Basque Country UPV-EHU, San Sebastián, Spain
| | - José M Bravo-San Pedro
- Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain.,Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Mireia Niso-Santano
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain. .,Instituto de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain.
| | - José M Fuentes
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain. .,Instituto de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain.
| | - Rosa A González-Polo
- Departamento de Bioquímica Y Biología Molecular Y Genética, Facultad de Enfermería Y Terapia Ocupacional, Universidad de Extremadura, Cáceres, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades (CIBERNED), Madrid, Spain. .,Instituto de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain.
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8
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Shao ZQ, Dou SS, Zhu JG, Wang HQ, Wang CM, Cheng BH, Bai B. Apelin-13 inhibits apoptosis and excessive autophagy in cerebral ischemia/reperfusion injury. Neural Regen Res 2021; 16:1044-1051. [PMID: 33269749 PMCID: PMC8224111 DOI: 10.4103/1673-5374.300725] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Apelin-13 is a novel endogenous ligand for an angiotensin-like orphan G-protein coupled receptor, and it may be neuroprotective against cerebral ischemia injury. However, the precise mechanisms of the effects of apelin-13 remain to be elucidated. To investigate the effects of apelin-13 on apoptosis and autophagy in models of cerebral ischemia/reperfusion injury, a rat model was established by middle cerebral artery occlusion. Apelin-13 (50 μg/kg) was injected into the right ventricle as a treatment. In addition, an SH-SY5Y cell model was established by oxygen-glucose deprivation/reperfusion, with cells first cultured in sugar-free medium with 95% N2 and 5% CO2 for 4 hours and then cultured in a normal environment with sugar-containing medium for 5 hours. This SH-SY5Y cell model was treated with 10–7 M apelin-13 for 5 hours. Results showed that apelin-13 protected against cerebral ischemia/reperfusion injury. Apelin-13 treatment alleviated neuronal apoptosis by increasing the ratio of Bcl-2/Bax and significantly decreasing cleaved caspase-3 expression. In addition, apelin-13 significantly inhibited excessive autophagy by regulating the expression of LC3B, p62, and Beclin1. Furthermore, the expression of Bcl-2 and the phosphatidylinositol-3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathway was markedly increased. Both LY294002 (20 μM) and rapamycin (500 nM), which are inhibitors of the PI3K/Akt/mTOR pathway, significantly attenuated the inhibition of autophagy and apoptosis caused by apelin-13. In conclusion, the findings of the present study suggest that Bcl-2 upregulation and mTOR signaling pathway activation lead to the inhibition of apoptosis and excessive autophagy. These effects are involved in apelin-13-induced neuroprotection against cerebral ischemia/reperfusion injury, both in vivo and in vitro. The study was approved by the Animal Ethical and Welfare Committee of Jining Medical University, China (approval No. 2018-JS-001) in February 2018.
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Affiliation(s)
- Zi-Qi Shao
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Shan-Shan Dou
- Neurobiology Institute, Jining Medical University, Jining, Shandong Province, China
| | - Jun-Ge Zhu
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Hui-Qing Wang
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Chun-Mei Wang
- Neurobiology Institute, Jining Medical University, Jining, Shandong Province, China
| | - Bao-Hua Cheng
- Neurobiology Institute, Jining Medical University, Jining, Shandong Province, China
| | - Bo Bai
- Neurobiology Institute, Jining Medical University, Jining, Shandong Province, China
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9
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Wang SY, Zhao JM, Zhou CL, Zheng HD, Huang Y, Zhao M, Zhang ZY, Wu LY, Wu HG, Liu HR. Herbal cake-partitioned moxibustion inhibits colonic autophagy in Crohn’s disease via signaling involving distinct classes of phosphatidylinositol 3-kinases. World J Gastroenterol 2020; 26:5997-6014. [PMID: 33132650 PMCID: PMC7584057 DOI: 10.3748/wjg.v26.i39.5997] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/14/2020] [Accepted: 09/04/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Autophagy is an evolutionarily conserved biological process in eukaryotic cells that involves lysosomal-mediated degradation and recycling of related cellular components. Recent studies have shown that autophagy plays an important role in the pathogenesis of Crohn’s disease (CD). Herbal cake-partitioned moxibustion (HM) has been historically practiced to treat CD. However, the mechanism by which HM regulates colonic autophagy in CD remains unclear.
AIM To observe whether HM can alleviate CD by regulating colonic autophagy and to elucidate the underlying mechanism.
METHODS Rats were randomly divided into a normal control (NC) group, a CD group, an HM group, an insulin + CD (I + CD) group, an insulin + HM (I + HM) group, a rapamycin + CD (RA + CD) group, and a rapamycin + HM (RA + HM) group. 2,4,6-trinitrobenzenesulfonic acid was administered to establish a CD model. The morphology of the colonic mucosa was observed by hematoxylin-eosin staining, and the formation of autophagosomes was observed by electron microscopy. The expression of autophagy marker microtubule-associated protein 1 light chain 3 beta (LC3B) was observed by immunofluorescence staining. Insulin and rapamycin were used to inhibit and activate colonic autophagy, respectively. The mRNA expression levels of phosphatidylinositol 3-kinase class I (PI3KC1), Akt1, LC3B, sequestosome 1 (p62), and mammalian target of rapamycin (mTOR) were evaluated by RT-qPCR. The protein expression levels of interleukin 18 (IL-18), tumor necrosis factor-α (TNF-α), nuclear factor κB/p65 (NF-κB p65), LC3B, p62, coiled-coil myosin-like BCL2-interacting protein (Beclin-1), p-mTOR, PI3KC1, class III phosphatidylinositol 3-kinase (PI3KC3/Vps34), and p-Akt were evaluated by Western blot analysis.
RESULTS Compared with the NC group, the CD group showed severe damage to colon tissues and higher expression levels of IL-18 and NF-κB p65 in colon tissues (P < 0.01 for both). Compared with the CD group, the HM group showed significantly lower levels of these proteins (PIL-18 < 0.01 and Pp65 < 0.05). There were no significant differences in the expression of TNF-α protein in colon tissue among the rat groups. Typical autophagic vesicles were found in both the CD and HM groups. The expression of the autophagy proteins LC3B and Beclin-1 was upregulated (P < 0.01 for both) in the colon tissues of rats in the CD group compared with the NC group, while the protein expression of p62 and p-mTOR was downregulated (P < 0.01 for both). However, these expression trends were significantly reversed in the HM group compared with the CD group (PLC3B < 0.01, PBeclin-1 < 0.05, Pp62 < 0.05, and Pm-TOR < 0.05). Compared with those in the RA + CD group, the mRNA expression levels of PI3KC1, Akt1, mTOR, and p62 in the RA + HM group were significantly higher (PPI3KC1 < 0.01 and PAkt1, mTOR, and p62 < 0.05), while those of LC3B were significantly lower (P < 0.05). Compared with the RA + CD group, the RA + HM group exhibited significantly higher PI3KC1, p-Akt1, and p-mTOR protein levels (PPI3KC1 < 0.01, Pp-Akt1 < 0.05, and Pp-mTOR < 0.01), a higher p62 protein level (P = 0.057), and significantly lower LC3B and Vps34 protein levels (P < 0.01 for both) in colon tissue.
CONCLUSION HM can activate PI3KC1/Akt1/mTOR signaling while inhibiting the PI3KC3 (Vps34)-Beclin-1 protein complex in the colon tissues of CD rats, thereby inhibiting overactivated autophagy and thus exerting a therapeutic effect.
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Affiliation(s)
- Shi-Yuan Wang
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
| | - Ji-Meng Zhao
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
| | - Ci-Li Zhou
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
| | - Han-Dan Zheng
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
| | - Yan Huang
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
| | - Min Zhao
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
| | - Zhi-Ying Zhang
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
| | - Lu-Yi Wu
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Huan-Gan Wu
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
| | - Hui-Rong Liu
- Key Laboratory of Acupuncture-Moxibustion and Immunology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai 200030, China
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10
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Jin C, Zhong Y, Han J, Zhu J, Liu Q, Sun D, Xia X, Peng X. Drp1-mediated mitochondrial fission induced autophagy attenuates cell apoptosis caused by 3-chlorpropane-1,2-diol in HEK293 cells. Food Chem Toxicol 2020; 145:111740. [PMID: 32910998 DOI: 10.1016/j.fct.2020.111740] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/29/2020] [Accepted: 09/03/2020] [Indexed: 02/07/2023]
Abstract
3-chlorpropane-1,2-diol (3-MCPD) is a heat-induced food process contaminant that threatens human health. As the primary target organ, the morphological and functional impairment of kidney and the related mechanism such as apoptosis and mitochondrial dysfunction were observed. However, the precise molecular mechanism remains largely unclear. This study aimed to explore the important role of mitochondrial fission and autophagy in the 3-MCPD-caused apoptosis of human embryonic kidney 293 (HEK293) cells. The results showed that blockage of dynamin-related protein-1 (Drp1) by mitochondrial division inhibitor 1 (Mdivi-1, 15 μM) apparently restored 3-MCPD-induced mitochondrial dysfunction, accompanied by prevented the collapse of mitochondrial membrane potential and ATP depletion, and suppressed the occurrence of autophagy. Induction of autophagy occurred following 2.5-10 mM 3-MCPD treatment for 24 h via AMPK mediated mTOR signaling pathway. Meanwhile, enhancement of autophagy by pretreatment with rapamycin (1 nM) alleviated the loss of cell viability and apoptosis induced by 3-MCPD whereas suppression of autophagy by 3-methyladenine (1 mM) further accelerated apoptosis, which was modulated through the mitochondria-dependent apoptotic pathway. Taking together, this study provides novel insights into the 3-MCPD-induced apoptosis in HEK293 cells and reveals that autophagy has potential as an effective intervention strategy for the treatment of 3-MCPD-induced nephrotoxicity.
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Affiliation(s)
- Chengni Jin
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yujie Zhong
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiahui Han
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiachang Zhu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qi Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Dianjun Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaodong Xia
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaoli Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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11
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Fan G, Chen MJ, Wei J. Involvement of phosphatase and tensin homolog-induced putative kinase 1/Parkin-mediated autophagy in angiotensin II-induced cardiac hypertrophy in C57BL/6 mice. J Int Med Res 2019; 48:300060519896143. [PMID: 31889458 PMCID: PMC7251547 DOI: 10.1177/0300060519896143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Objective To study the role of autophagy in angiotensin II-induced cardiac
hypertrophy in C57BL/6 mice. Methods We randomly assigned 10 C57BL/6 mice into the control and
angiotensin II (Ang II) groups (n = 5 in each group). Ang II
group mice were injected with Ang II (3 mg/kg/day). Cardiac
structure, myocardial pathological changes, mitochondrial
structure, autophagosomes, mitochondrial membrane potential
(MMP), and myocardial apoptosis were examined. Phosphatase and
tensin homolog (PTEN)-induced putative kinase 1 (PINK1), Parkin,
and microtubule-associated protein1A/1B-light chain 3 (LC3) II
protein expression levels and mRNA expression of atrial
natriuretic peptide (ANP) and brain natriuretic peptide (BNP)
were examined. Results The heart weight/body weight ratio, posterior wall of the left
ventricle, myocardial apoptosis (%), relative number of
autophagosomes, ANP and BNP mRNA levels, and PINK1, Parkin, and
LC3 II protein levels were significantly higher in the Ang II
group than in the control group. The MMP and left ventricular
ejection fraction were significantly lower in the Ang II group
than in the control group. There was disordered arrangement of
cardiomyocytes and mitochondria, and obvious mitochondrial
swelling, cardiomyocyte hypertrophy, and fibrosis in the Ang II
group. Conclusion PINK1/PARKIN-mediated autophagy is involved in Ang II-induced
cardiac hypertrophy by affecting myocardial apoptosis and
mitochondrial function.
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Affiliation(s)
- Gang Fan
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - Meng-Jie Chen
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - Jin Wei
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
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12
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Low-dose cisplatin causes growth inhibition and loss of autophagy of rat astrocytes in vitro. Neurosci Lett 2018; 682:112-117. [DOI: 10.1016/j.neulet.2018.06.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 06/04/2018] [Accepted: 06/15/2018] [Indexed: 12/23/2022]
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13
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Yakhine-Diop SMS, Niso-Santano M, Rodríguez-Arribas M, Gómez-Sánchez R, Martínez-Chacón G, Uribe-Carretero E, Navarro-García JA, Ruiz-Hurtado G, Aiastui A, Cooper JM, López de Munaín A, Bravo-San Pedro JM, González-Polo RA, Fuentes JM. Impaired Mitophagy and Protein Acetylation Levels in Fibroblasts from Parkinson's Disease Patients. Mol Neurobiol 2018; 56:2466-2481. [PMID: 30032424 DOI: 10.1007/s12035-018-1206-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 06/26/2018] [Indexed: 12/12/2022]
Abstract
Parkinson's disease (PD) is a chronic and progressive neurodegenerative disorder. While most PD cases are idiopathic, the known genetic causes of PD are useful to understand common disease mechanisms. Recent data suggests that autophagy is regulated by protein acetylation mediated by histone acetyltransferase (HAT) and histone deacetylase (HDAC) activities. The changes in histone acetylation reported to be involved in PD pathogenesis have prompted this investigation of protein acetylation and HAT and HDAC activities in both idiopathic PD and G2019S leucine-rich repeat kinase 2 (LRRK2) cell cultures. Fibroblasts from PD patients (with or without the G2019S LRRK2 mutation) and control subjects were used to assess the different phenotypes between idiopathic and genetic PD. G2019S LRRK2 mutation displays increased mitophagy due to the activation of class III HDACs whereas idiopathic PD exhibits downregulation of clearance of defective mitochondria. This reduction of mitophagy is accompanied by more reactive oxygen species (ROS). In parallel, the acetylation protein levels of idiopathic and genetic individuals are different due to an upregulation in class I and II HDACs. Despite this upregulation, the total HDAC activity is decreased in idiopathic PD and the total HAT activity does not significantly vary. Mitophagy upregulation is beneficial for reducing the ROS-induced harm in genetic PD. The defective mitophagy in idiopathic PD is inherent to the decrease in class III HDACs. Thus, there is an imbalance between total HATs and HDACs activities in idiopathic PD, which increases cell death. The inhibition of HATs in idiopathic PD cells displays a cytoprotective effect.
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Affiliation(s)
- Sokhna M S Yakhine-Diop
- Departamento de Bioquímica y Biología Molecular y Genética. Facultad de Enfermería y Terapia Ocupacional, Universidad de Extremadura, Avda. de la Universidad s/n, 10003, Cáceres, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain
| | - Mireia Niso-Santano
- Departamento de Bioquímica y Biología Molecular y Genética. Facultad de Enfermería y Terapia Ocupacional, Universidad de Extremadura, Avda. de la Universidad s/n, 10003, Cáceres, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain
| | - Mario Rodríguez-Arribas
- Departamento de Bioquímica y Biología Molecular y Genética. Facultad de Enfermería y Terapia Ocupacional, Universidad de Extremadura, Avda. de la Universidad s/n, 10003, Cáceres, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain
| | - Rubén Gómez-Sánchez
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Guadalupe Martínez-Chacón
- Departamento de Bioquímica y Biología Molecular y Genética. Facultad de Enfermería y Terapia Ocupacional, Universidad de Extremadura, Avda. de la Universidad s/n, 10003, Cáceres, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain
| | - Elisabet Uribe-Carretero
- Departamento de Bioquímica y Biología Molecular y Genética. Facultad de Enfermería y Terapia Ocupacional, Universidad de Extremadura, Avda. de la Universidad s/n, 10003, Cáceres, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain
| | - José A Navarro-García
- Laboratorio de Hipertensión y Riesgo Cardiovascular and Unidad de Hipertensión, Instituto de Investigación imas12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Gema Ruiz-Hurtado
- Laboratorio de Hipertensión y Riesgo Cardiovascular and Unidad de Hipertensión, Instituto de Investigación imas12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Ana Aiastui
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain.,Cell Culture Platform, Donostia University Hospital, San Sebastián, Spain.,Neuroscience Area of Biodonostia Health Research Institute, Donostia University Hospital, San Sebastián, Spain
| | - J Mark Cooper
- Department of Clinical and Movement Neurosciences, Institute of Neurology London, University College London, London, UK
| | - Adolfo López de Munaín
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain.,Neuroscience Area of Biodonostia Health Research Institute, Donostia University Hospital, San Sebastián, Spain.,Department of Neurology, Donostia University Hospital, San Sebastián, Spain.,Ilundain Fundazioa, San Sebastián, Spain.,Department of Neurosciences, University of the Basque Country UPV-EHU, San Sebastián, Spain
| | - José M Bravo-San Pedro
- Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, 75006, Paris, France.,INSERM U1138, 75006, Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, 75006, Paris, France.,Université Pierre et Marie Curie/Paris VI, 75006, Paris, France.,Gustave Roussy Comprehensive Cancer Institute, 94805, Villejuif, France
| | - Rosa A González-Polo
- Departamento de Bioquímica y Biología Molecular y Genética. Facultad de Enfermería y Terapia Ocupacional, Universidad de Extremadura, Avda. de la Universidad s/n, 10003, Cáceres, Spain. .,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain.
| | - José M Fuentes
- Departamento de Bioquímica y Biología Molecular y Genética. Facultad de Enfermería y Terapia Ocupacional, Universidad de Extremadura, Avda. de la Universidad s/n, 10003, Cáceres, Spain. .,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED) Madrid, Madrid, Spain.
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14
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Wang Y, Liu FT, Wang YX, Guan RY, Chen C, Li DK, Bu LL, Song J, Yang YJ, Dong Y, Chen Y, Wang J. Autophagic Modulation by Trehalose Reduces Accumulation of TDP-43 in a Cell Model of Amyotrophic Lateral Sclerosis via TFEB Activation. Neurotox Res 2018; 34:109-120. [PMID: 29383655 DOI: 10.1007/s12640-018-9865-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 01/01/2018] [Accepted: 01/04/2018] [Indexed: 12/24/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is the most common adult-onset motor neuron disease characterized by the formation of protein inclusion and progressive loss of motor neurons, finally leading to muscle weakness and respiratory failure. So far, the effective drugs for ALS are yet to be developed. Impairment of transcriptional activator transcription factor EB (TFEB) has been demonstrated as a key element in the pathogenesis of ALS. Trehalose is an mechanistic target of rapamycin-independent inducer for autophagy, which showed autophagic activation and neuroprotective effect in a variety of neurodegenerative diseases. The mechanism for trehalose-induced autophagy enhancement is not clear, and its therapeutic effect on TAR DNA-binding protein-43 (TDP-43) proteinopathies has been poorly investigated. Here we examined the effect of trehalose on TDP-43 clearance in a cell culture model and identified that trehalose treatment significantly reduced TDP-43 accumulation in vitro through modulation of the autophagic degradation pathway. Further studies revealed that activation of TFEB induced by trehalose was responsible for the enhancement of autophagy and clearance of TDP-43 level. These results gave us the notion that TFEB is a central regular in trehalose-mediated autophagic clearance of TDP-43 aggregates, representing an important step forward in the treatment of TDP-43 related ALS diseases.
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Affiliation(s)
- Ying Wang
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China.,Department of Neurology, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Feng-Tao Liu
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Yi-Xuan Wang
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Rong-Yuan Guan
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Chen Chen
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Da-Ke Li
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Lu-Lu Bu
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Jie Song
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Yu-Jie Yang
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Yi Dong
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Yan Chen
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China.
| | - Jian Wang
- Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China.
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15
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Xu XJ, Zhao WB, Feng SB, Sun C, Chen Q, Ni B, Hu HY. Celastrol alleviates angiotensin II‑mediated vascular smooth muscle cell senescence via induction of autophagy. Mol Med Rep 2017; 16:7657-7664. [PMID: 28944849 DOI: 10.3892/mmr.2017.7533] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 07/28/2017] [Indexed: 12/09/2022] Open
Abstract
Reactive oxygen species (ROS) production has been implicated in the promotion of cellular senescence. Celastrol, a quinone methide triterpenoid isolated from the Celastraceae family, exerts antioxidant effects and enhances autophagy in various cell types. Since autophagy serves an important role in regulating ROS, it was hypothesized that the antioxidant effect of celastrol is via enhanced autophagy, thus inhibiting cell senescence. Therefore, the present study used a Senescence β‑Galactosidase Staining kit, western blot analysis and cell cycle analysis to investigate whether celastrol alleviates angiotensin (Ang) II‑induced cellular senescence by upregulating autophagy in vascular smooth muscle cells (VSMCs). The results demonstrated that celastrol reduced Ang II‑induced senescence of VSMCs. Ang II‑induced generation of ROS and the subsequent VSMC senescence were counteracted by pretreatment with celastrol, determined by a ROS assay kit. Celastrol significantly upregulated VSMC autophagy, which reduced intracellular ROS and the subsequent cellular senescence induced by Ang II. Furthermore, celastrol markedly suppressed activity of the mechanistic target of rapamycin signaling pathway in VSMCs. In conclusion, the present study demonstrated that celastrol counteracts VSMC senescence probably by reducing ROS production via activation of autophagy, which may hold promise for the prevention and treatment of aging‑associated cardiovascular disorders such as atherosclerosis.
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Affiliation(s)
- Xian-Jie Xu
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Wei-Bo Zhao
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Shi-Bin Feng
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Cheng Sun
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Qiang Chen
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Bing Ni
- Department of Pathophysiology and High Altitude Pathology, Third Military Medical University, Chongqing 400038, P.R. China
| | - Hou-Yuan Hu
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
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Orhon I, Reggiori F. Assays to Monitor Autophagy Progression in Cell Cultures. Cells 2017; 6:cells6030020. [PMID: 28686195 PMCID: PMC5617966 DOI: 10.3390/cells6030020] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/02/2017] [Accepted: 07/04/2017] [Indexed: 01/10/2023] Open
Abstract
The vast number of implications of autophagy in multiple areas of life sciences and medicine has attracted the interest of numerous scientists that aim to unveil the role of this process in specific physiological and pathological contexts. Cell cultures are one of the most frequently used experimental setup for the investigation of autophagy. As a result, it is essential to assess this highly regulated molecular pathway with efficient and reliable methods. Each method has its own advantages and disadvantages. Here, we present a review summarizing the most established assays used to monitor autophagy induction and progression in cell cultures, in order to guide researchers in the selection of the most optimal solution for their experimental setup and design.
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Affiliation(s)
- Idil Orhon
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| | - Fulvio Reggiori
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands.
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Ríos-Luci C, García-Alonso S, Díaz-Rodríguez E, Nadal-Serrano M, Arribas J, Ocaña A, Pandiella A. Resistance to the Antibody-Drug Conjugate T-DM1 Is Based in a Reduction in Lysosomal Proteolytic Activity. Cancer Res 2017; 77:4639-4651. [PMID: 28687619 DOI: 10.1158/0008-5472.can-16-3127] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 04/12/2017] [Accepted: 06/29/2017] [Indexed: 12/09/2022]
Abstract
Trastuzumab-emtansine (T-DM1) is an antibody-drug conjugate (ADC) that was approved recently to treat HER2+ breast cancers. Despite its impressive clinical efficacy in many patients, intrinsic and acquired resistance to T-DM1 has emerged as a challenge. To identify mechanisms of T-DM1 resistance, we isolated several resistant HER2+ clones exhibiting stable drug refractoriness in vitro and in vivo Genomic comparisons showed substantial differences among three of the isolated clones, indicating several potential mechanisms of resistance to T-DM1. However, we observed no differences in HER2 levels and signaling among the resistant models and parental HER2+ cells. Bioinformatics studies suggested that intracellular trafficking of T-DM1 could underlie resistance to T-DM1, and systematic analysis of the path followed by T-DM1 showed that the early steps in the internalization of the drug were unaltered. However, in some of the resistant clones, T-DM1 accumulated in lysosomes. In these clones, lysosomal pH was increased and the proteolytic activity of these organelles was deranged. These results were confirmed in T-DM1-resistant cells from patient-derived HER2+ samples. We postulate that resistance to T-DM1 occurs through multiple mechanisms, one of which is impaired lysosomal proteolytic activity. Because other ADC may use the same internalization-degradation pathway to deliver active payloads, strategies aimed at restoring lysosomal functionality might overcome resistance to ADC-based therapies and improve their effectiveness. Cancer Res; 77(17); 4639-51. ©2017 AACR.
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Affiliation(s)
- Carla Ríos-Luci
- Instituto de Biología Molecular y Celular del Cáncer, CSIC, Salamanca, Spain
| | - Sara García-Alonso
- Instituto de Biología Molecular y Celular del Cáncer, CSIC, Salamanca, Spain
| | | | | | - Joaquín Arribas
- Vall d'Hebron Institut d'Oncologia (VHIO), Barcelona, Spain.,CIBERONC, Madrid, Spain.,Departamento de Bioquímica y Biología Molecular, UAB, Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Alberto Ocaña
- Unidad de Investigación Traslacional Hospital Universitario de Albacete, Albacete, Spain
| | - Atanasio Pandiella
- Instituto de Biología Molecular y Celular del Cáncer, CSIC, Salamanca, Spain. .,CIBERONC, Madrid, Spain
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